State Street Institutional Investment Trust

As filed with the U.S. Securities and Exchange Commission on October 8, 2021

State Street Diversified Income Fund

Investment Objective

The State Street Diversified Income Fund (the “Fund”) seeks a high level of income.

Fees and Expenses of the Fund

The tables below describe the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund (“Fund Shares”). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries which are not reflected in the tables and examples below.

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None
Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the sale proceeds or the original offering price)	None

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Management Fee	0.25%
Distribution and/or Shareholder Service (12b-1) Fees	[XX] %
Other Expenses¹	[XX] %
Total Annual Fund Operating Expenses	[XX] %
Less Fee Waivers and/or Expense Reimbursements²	[XX] %
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	[XX] %

Other Expenses are based on estimates for the current fiscal year.

The Fund's investment adviser, SSGA Funds Management, Inc. (the “Adviser” or “SSGA FM”), is contractually obligated until [April 30, 2023] (i) to waive up to the full amount of the advisory fee payable by the Fund, and/or (ii) to reimburse the Fund to the extent that Total Annual Fund Operating Expenses (exclusive of non-recurring account fees, interest, taxes, and extraordinary expenses) exceed [ ]% of average daily net assets on an annual basis. This waiver and/or reimbursement may not be terminated prior to [April 30, 2023] except with approval of the Fund's Board of Trustees.

Example:

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell or hold all of your Fund Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The calculation of costs for the one-year period takes into account the effect of any current contractual fee waivers and/or reimbursements; and the calculation of costs for the remaining period takes such fee waivers and/or reimbursements into account only for the first year of each such period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

1 year		3 years
[ ]		[ ]

Portfolio Turnover:

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Fund's performance. The Fund's portfolio turnover rate has been omitted because the Fund had not commenced investment operations as of the date of this Prospectus.

Table of Contents

Principal Investment Strategies

The Fund seeks to achieve its investment objective by investing under normal circumstances at least 65% of its net assets in income securities of varying maturities. SSGA Funds Management, Inc. (the “Adviser”) attempts to invest the Fund's assets across higher income-generating sectors while making adjustments to the portfolio to manage risk through different credit cycles. The Fund seeks to reduce volatility through portfolio diversification across sectors and managing exposures to duration, credit rating/quality, geography, maturity and different parts of the capital structure of issuers in which the Fund invests.

The Fund's investments may include, but are not limited to, income securities of any credit rating, income securities issued by governmental entities (including supranational entities), their agencies and instrumentalities, collateralized loan obligations, high-yield senior loans, mortgage-related and asset-backed securities and other fixed and floating or variable rate obligations. The Fund may also invest up to 10% of its net assets in convertible securities and up to 10% of its net assets in preferred securities. The Fund may invest in exchange-traded funds (“ETFs”), a type of pooled investment vehicle, in order to manage cash positions or seek exposure to certain markets or market sectors.

The Fund may invest in such income securities of issuers located in the United States and non-U.S. countries, including emerging market entities. An emerging market country is any country determined by the Adviser to have an emerging market economy, considering factors such as the country's political and economic stability, and the development of its financial and capital markets. An emerging market entity is an entity that is located in an emerging market country or has significant economic exposure to an emerging market, including corporate, national and local government, and quasi-government entities.

The Fund may invest up to 80% of its net assets in high yield securities (commonly referred to as below-investment-grade bonds or junk bonds) rated below investment grade by Moody's Investors Service, Inc. (“Moody's”), Standard & Poor's Ratings Services (“S&P”) or Fitch, Inc. (“Fitch”), or if unrated, as determined by the investment adviser. In the event that ratings services assign different ratings to the same security, the investment adviser will use the highest rating as the credit rating for that security. The Fund may invest up to 75% of its net assets in income securities and instruments of emerging market countries. In addition, the Fund may invest up to 50% of its net assets in income securities denominated in foreign currencies (this limitation does not apply to investment grade sovereign debt denominated in the local currency with less than 1 year remaining to maturity). The Fund will normally limit its net foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its net assets.

The Fund may invest, without limitation, in derivative instruments, such as forwards, options, futures and swaps. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls).

Principal Risks

The Fund is subject to the following principal risks. You could lose money by investing in the Fund. Certain risks relating to instruments and strategies used in the management of the Fund are placed first. The significance of any specific risk to an investment in the Fund will vary over time, depending on the composition of the Fund's portfolio, market conditions, and other factors. You should read all of the risk information presented below carefully, because any one or more of these risks may result in losses to the Fund. An investment in the Fund is subject to investment risks, including possible loss of principal, is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund may not achieve its investment objective. The Fund is not intended to be a complete investment program, but rather is intended for investment as part of a diversified investment portfolio. Investors should consult their own advisers as to the role of the Fund in their overall investment programs.

Market Risk: The Fund's investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in the actual or perceived creditworthiness of issuers, and general market liquidity. The Fund is subject to the risk that geopolitical events will disrupt securities markets and adversely affect

Table of Contents

global economies and markets. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues, or other events could have a significant impact on the Fund and its investments.

Management Risk: The Fund is actively managed. The Adviser's judgments about the attractiveness, relative value, or potential appreciation of a particular sector, security, commodity or investment strategy may prove to be incorrect, and may cause the Fund to incur losses. There can be no assurance that the Adviser's investment techniques and decisions will produce the desired results.

Debt Securities Risk: The values of debt securities may increase or decrease as a result of the following: market fluctuations, changes in interest rates, actual or perceived inability or unwillingness of issuers, guarantors or liquidity providers to make scheduled principal or interest payments or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. A rising interest rate environment may cause the value of the Fund's fixed income securities to decrease, an adverse impact on the liquidity of the Fund's fixed income securities, and increased volatility of the fixed income markets. The current low interest rate environment heightens the risks associated with rising interest rates. During periods when interest rates are at low levels, the Fund's yield can be low, and the Fund may have a negative yield (i.e., it may lose money on an operating basis). If the principal on a debt obligation is prepaid before expected, the prepayments of principal may have to be reinvested in obligations paying interest at lower rates. During periods of falling interest rates, the income received by the Fund may decline. Changes in interest rates will likely have a greater effect on the values of debt securities of longer durations. Returns on investments in debt securities could trail the returns on other investment options, including investments in equity securities.

Interest Rate Risk: Interest rate risk is the risk that debt securities will decline in value because of increases in interest rates. The value of a security with a longer duration will be more sensitive to changes in interest rates than a similar security with a shorter duration. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments.

Derivatives Risk: Derivative transactions can create investment leverage and may have significant volatility. It is possible that a derivative transaction will result in a much greater loss than the principal amount invested, that changes in the value of a derivative transaction may not correlate perfectly with the underlying asset, and that the Fund may not be able to close out a derivative transaction at a favorable time or price. The counterparty to a derivatives contract may be unable or unwilling to make timely settlement payments, return the Fund's margin, or otherwise honor its obligations. A derivatives transaction may not behave in the manner anticipated by the Adviser or may not have the effect on the Fund anticipated by the Adviser.

Below Investment-Grade Securities Risk: Lower-quality debt securities (“high yield” or “junk” bonds) are considered predominantly speculative, and can involve a substantially greater risk of default than higher quality debt securities. Issuers of lower-quality debt securities may have substantially greater risk of insolvency or bankruptcy than issuers of higher-quality debt securities. They can be illiquid, and their values can have significant volatility and may decline significantly over short periods of time. Lower-quality debt securities tend to be more sensitive to adverse news about the issuer, or the market or economy in general.

Non-U.S. Securities Risk: Non-U.S. securities (including depositary receipts) are subject to political, regulatory, and economic risks not present in domestic investments. There may be less information publicly available about a non-U.S. entity than about a U.S. entity, and many non-U.S. entities are not subject to accounting, auditing, legal and financial report standards comparable to those in the United States. Further, such entities and/or their securities may be subject to risks associated with currency controls; expropriation; changes in tax policy; greater market volatility; differing securities market structures; higher transaction costs; and various administrative difficulties, such as delays in clearing and settling portfolio transactions or in receiving payment of dividends. Securities traded on foreign markets may be less liquid (harder to sell) than securities traded domestically. Foreign governments may impose restrictions on the repatriation of capital to the U.S. In addition, to the extent that the Fund buys securities denominated in a foreign currency, there are special risks such as changes in currency exchange rates and the risk that a foreign government could regulate foreign exchange transactions. In addition, to the extent investments are made in a lim-

Table of Contents

ited number of countries, events in those countries will have a more significant impact on the Fund. Investments in depositary receipts may be less liquid and more volatile than the underlying shares in their primary trading market.

Convertible Securities Risk: Convertible securities may be subordinate to other debt securities issued by the same issuer. Issuers of convertible securities are often not as strong financially as issuers with higher credit ratings. Convertible securities typically provide yields lower than comparable non-convertible securities. Their values may be more volatile than those of non-convertible securities, reflecting changes in the values of the securities into which they are convertible.

Counterparty Risk: The Fund will be subject to credit risk with respect to the counterparties with which the Fund enters into derivatives contracts, repurchase agreements, reverse repurchase agreements, and other transactions. If a counterparty fails to meet its contractual obligations, the Fund may be unable to terminate or realize any gain on the investment or transaction, or to recover collateral posted to the counterparty, resulting in a loss to the Fund. If the Fund holds collateral posted by its counterparty, it may be delayed or prevented from realizing on the collateral in the event of a bankruptcy or insolvency proceeding relating to the counterparty.

Emerging Markets Risk: Risks of investing in emerging markets include, among others, greater political and economic instability, greater volatility in currency exchange rates, less developed securities markets, possible trade barriers, currency transfer restrictions, a more limited number of potential buyers and issuers, an emerging market country's dependence on revenue from particular commodities or international aid, less governmental supervision and regulation, unavailability of currency hedging techniques, differences in auditing and financial reporting standards, less stringent investor protection and disclosure standards, less developed public health systems, and less developed legal systems. There is also the potential for unfavorable action such as expropriation, nationalization, embargo, and acts of war. The securities of emerging market companies may trade less frequently and in smaller volumes than more widely held securities. Market disruptions or substantial market corrections may limit very significantly the liquidity of securities of certain companies in a particular country or geographic region, or of all companies in the country or region. The Fund may be unable to liquidate its positions in such securities at any time, or at a favorable price, in order to meet the Fund's obligations. These risks are generally greater for investments in frontier market countries, which typically have smaller economies or less developed capital markets than traditional emerging market countries.

Equity Investing Risk: The market prices of equity securities owned by the Fund may go up or down, sometimes rapidly or unpredictably. The value of a security may decline for a number of reasons that may directly relate to the issuer and also may decline due to general industry or market conditions that are not specifically related to a particular company. In addition, equity markets tend to move in cycles, which may cause stock prices to fall over short or extended periods of time.

Exchange Traded Products Risk: The Fund is subject to substantially the same risks as those associated with the direct ownership of the securities represented by the ETPs in which it invests. In addition, the shares of certain ETPs may trade at a premium or discount to their intrinsic value (i.e., the market value may differ from the net asset value of an Exchange-Traded Fund's (“ETF”) shares) for a number of reasons. For example, supply and demand for shares of an ETF or market disruptions may cause the market price of the ETF to deviate from the value of the ETF's investments, which may be exacerbated in less liquid markets. The value of an exchange-traded note may also differ from the valuation of its reference market due to changes in the issuer's credit rating. By investing in ETPs, the Fund shareholders indirectly bear the Fund's proportionate share of any fees and expenses (e.g. management, custody, accounting, and administration) of the ETP, if applicable, in addition to the fees and expenses that the Fund shareholders directly bear in connection with the Fund's operations.

Affiliated ETP Risk: The Adviser may receive management or other fees from the ETPs (“Affiliated ETPs”) in which the Fund may invest, as well as a management fee for managing the Fund. It is possible that a conflict of interest among the Fund and the Affiliated ETPs could affect how the Adviser fulfills its fiduciary duties to the Fund and the Affiliated ETPs. Because the amount of the investment management fees to be retained by the Adviser may differ depending upon the Affiliated ETPs in which the Fund invests, there is a conflict of interest for the Adviser in selecting the Affiliated ETPs. In addition, the Adviser may have an incentive to take into account the effect on an Affiliated ETP in which the Fund may invest in determining whether, and under what circumstances, to purchase or sell shares in that Affiliated ETP. Although the Adviser takes steps to address the conflicts of interest, it is possible that the conflicts could impact the Fund.

Table of Contents

Liquidity Risk: Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price or at all. Illiquid investments may trade at a discount from comparable, more liquid investments and may be subject to wide fluctuations in market value. Illiquidity of the Fund's holdings may limit the ability of the Fund to obtain cash to meet redemptions on a timely basis. In addition, the Fund, due to limitations on investments in any illiquid securities and/or the difficulty in purchasing and selling such investments, may be unable to achieve its desired level of exposure to a certain market or sector.

Mortgage-Related and Other Asset-Backed Securities Risk: Investments in mortgage-related and other asset-backed securities are subject to the risk of significant credit downgrades, illiquidity, and defaults to a greater extent than many other types of fixed-income investments. The liquidity of mortgage-related and asset-backed securities may change over time. During periods of falling interest rates, mortgage- and asset-backed securities may be called or prepaid, which may result in the Fund having to reinvest proceeds in other investments at a lower interest rate. During periods of rising interest rates, the average life of mortgage- and asset-backed securities may extend, which may lock in a below-market interest rate, increase the security's duration and interest rate sensitivity, and reduce the value of the security. Enforcing rights against the underlying assets or collateral may be difficult, and the underlying assets or collateral may be insufficient if the issuer defaults.

Preferred Securities Risk: Generally, preferred security holders have no or limited voting rights with respect to the issuing company. In addition, preferred securities are subordinated to bonds and other debt instruments in a company's capital structure and therefore will be subject to greater credit risk than those debt instruments. Dividend payments on a preferred security typically must be declared by the issuer's board of directors. An issuer's board of directors is generally not under any obligation to pay a dividend (even if such dividends have accrued), and may suspend payment of dividends on preferred securities at any time. In the event an issuer of preferred securities experiences economic difficulties, the issuer's preferred securities may lose substantial value due to the reduced likelihood that the issuer's board of directors will declare a dividend and the fact that the preferred security may be subordinated to other securities of the same issuer. Further, because many preferred securities pay dividends at a fixed rate, their market price can be sensitive to changes in interest rates in a manner similar to bonds — that is, as interest rates rise, the value of the preferred securities held by the Fund are likely to decline. Therefore, to the extent that the Fund invests a substantial portion of its assets in fixed rate preferred securities, rising interest rates may cause the value of the Fund's investments to decline significantly. In addition, because many preferred securities allow holders to convert the preferred securities into common stock of the issuer, their market price can be sensitive to changes in the value of the issuer's common stock and, therefore, declining common stock values may also cause the value of the Fund's investments to decline. Preferred securities often have call features which allow the issuer to redeem the security at its discretion. The redemption of a preferred security having a higher than average yield may cause a decrease in the Fund's yield.

Portfolio Turnover Risk: Frequent purchases and sales of portfolio securities may result in higher Fund expenses and may result in more significant distributions of short-term capital gains to investors, which are taxed to individuals as ordinary income.

Risk of Investment in Other Pools: If the Fund invests in another pooled investment vehicle, it is exposed to the risk that the other pool will not perform as expected and is exposed indirectly to all of the risks applicable to an investment in such other pool. The investment policies of the other pool may not be the same as those of the Fund; as a result, an investment in the other pool may be subject to additional or different risks than those to which the Fund is typically subject. The Fund bears its proportionate share of the fees and expenses of any pool in which it invests. The Adviser or an affiliate may serve as investment adviser to a pool in which the Fund may invest, leading to potential conflicts of interest. It is possible that other clients of the Adviser or its affiliates will purchase or sell interests in a pool sponsored or managed by the Adviser or its affiliates at prices and at times more favorable than those at which the Fund does so.

Senior Loan Risk: Investments in first lien senior secured floating rate bank loans (“Senior Loans”) are subject to credit risk and general investment risk. Credit risk refers to the possibility that the borrower of a Senior Loan will be unable and/or unwilling to make timely interest payments and/or repay the principal on its obligation. Default in the payment of interest or principal on a Senior Loan will result in a reduction in the value of the Senior Loan and consequently a reduction in the value of the Fund's investments and a potential decrease in the net asset value (“NAV”) of the Fund. Senior Loans are also subject to the risk that the value of the collateral securing a Senior Loan may decline, be insufficient to meet the obligations of the borrower or be difficult to liquidate. In addition, the Fund's

Table of Contents

access to the collateral may be limited by bankruptcy or other insolvency laws. Further, loans held by the Fund may not be considered securities and, therefore, purchasers, such as the Fund, may not be entitled to rely on the strong anti-fraud protections of the federal securities laws. Some Senior Loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could subordinate the Senior Loans to presently existing or future indebtedness of the borrower or take other action detrimental to lenders, including the Fund, such as invalidation of Senior Loans or causing interest previously paid to be refunded to the borrower. Senior Loans are also subject to high yield securities risks and liquidity risks described above. In addition, bank loans may be subject to extended settlement periods, which may impair the Fund's ability to sell or realize the full value of its loans in the event of a need to liquidate such loans in a compressed period of time. Some of the loans in which the Fund may invest or obtain exposure to may be “covenant-lite” loans. Covenant-lite loans may contain fewer or no maintenance covenants compared to other loans and may not include terms which allow the lender to monitor the performance of the borrower and declare a default if certain criteria are breached. The Fund may experience delays in enforcing its rights on its holdings of covenant-lite loans.

U.S. Government Securities Risk: Certain U.S. government securities are supported by the full faith and credit of the United States; others are supported by the right of the issuer to borrow from the U.S. Treasury; others are supported by the discretionary authority of the U.S. government to purchase the agency's obligations; and still others are supported only by the credit of the issuing agency, instrumentality, or enterprise. Although U.S. government-sponsored enterprises such as the Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal National Mortgage Association (“Fannie Mae”) may be chartered or sponsored by Congress, they are not funded by Congressional appropriations, and their securities are not issued by the U.S. Treasury, are not supported by the full faith and credit of the U.S. government, and involve increased credit risks.

Valuation Risk: A larger portion of the Fund's investment portfolio may be valued on the basis of factors other than market quotations as compared with other mutual funds. This may occur more often in times of market turmoil or reduced liquidity. There are multiple methods that can be used to value a portfolio holding when market quotations are not readily available. The value established for any portfolio holding at a point in time might differ from what would be produced using a different methodology or if it had been priced using market quotations. Portfolio holdings that are valued using techniques other than market quotations, including “fair valued” securities, may be subject to greater fluctuation in their valuations from one day to the next than if market quotations were used. In addition, there is no assurance that the Fund could sell or close out a portfolio position for the value established for it at any time, and it is possible that the Fund would incur a loss because a portfolio position is sold or closed out at a discount to the valuation established by the Fund at that time. Investors who purchase or redeem Fund Shares on days when the Fund is holding fair-valued investments may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the Fund had not fair-valued the holding(s) or had used a different valuation methodology.

When-Issued, TBA and Delayed Delivery Securities Risk: The Fund may purchase securities on a when-issued, to-be-announced (“TBA”) or delayed delivery basis and may purchase securities on a forward commitment basis. The purchase price of the securities is typically fixed at the time of the commitment, but delivery and payment can take place a month or more after the date of the commitment. At the time of delivery of the securities, the value may be more or less than the purchase or sale price. Purchase of securities on a when-issued, TBA, delayed delivery, or forward commitment basis may give rise to investment leverage, and may result in increased volatility of the Fund's NAV. Default by, or bankruptcy of, a counterparty to a when-issued, TBA or delayed delivery transaction would expose the Fund to possible losses because of an adverse market action, expenses or delays in connection with the purchase or sale of the pools specified in such transaction. Financial Industry Regulatory Authority, Inc. rules impose mandatory margin requirements for certain types of when-issued, TBA delayed delivery or forward commitment transactions, with limited exceptions. Such transactions require mandatory collateralization which may increase the cost of such transactions and impose added operational complexity.

Fund Performance

Performance information for the Fund has been omitted because the Fund had not commenced investment operations as of the date of this Prospectus. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund's returns based on net assets. The Fund will make updated performance information, including its current net asset value, available at the Fund's website:www.ssgafunds.com.

Table of Contents

Investment Adviser

SSGA FM serves as the investment adviser to the Fund.

The professionals primarily responsible for the day-to-day management of the Fund are Matthew Nest and Orhan Imer, each of which has served as a portfolio manager of the Fund since inception in 2021.

Matthew Nest, CFA, is a Managing Director of the Adviser and the Global Head of Macro Strategies. He joined the Adviser in 2016.

Orhan Imer, CFA, Ph.D., is a Vice President of the Adviser and a Senior Portfolio Manager in the Fixed Income Beta Solutions Group. He joined the Adviser in 2017.

Purchase and Sale of Fund Shares

Purchase Minimums

There is no minimum initial investment for Class K shares of the Fund. There is no minimum subsequent investment. In the case of shareholders purchasing shares through a financial intermediary (“Financial Intermediary”), a minimum purchase amount may be applied at the level of the Financial Intermediary.

You may purchase or redeem Fund Shares on any day the Fund is open for business.

Written Requests and Wire Transfers. You may purchase or redeem Fund Shares by written request or wire transfer.

Written requests should be sent to:

By Mail:

State Street Funds
P.O. Box 219737
Kansas City, MO 64121-9737

By Overnight/Registered, Express, Certified Mail:

State Street Funds
430 W 7^th Street Suite 219737
Kansas City, MO 64105-1407

By Intermediary:

If you wish to purchase or redeem Fund Shares through a broker, bank or other Financial Intermediary, please contact that Financial Intermediary directly. Your Financial Intermediary may have different or additional requirements for opening an account and/or for the processing of purchase and redemption orders, or may be closed at times when the Fund is open. Financial Intermediaries may contact DST Asset Manager Solutions, Inc. at (877) 332-6207 or via email at nsccresearch@dstsystems.com with questions.

Tax Information

The Fund's distributions are expected to be taxed as ordinary income, qualified dividend income and/or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or IRA. Any withdrawals made from such tax-advantaged arrangement may be taxable to you.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund Shares through a broker-dealer or other Financial Intermediary (such as a bank), the Adviser or its affiliates may pay the Financial Intermediary for certain activities related to the Fund, including educational training programs, conferences, the development of technology platforms and reporting systems, or other services related to the sale or promotion of the Fund. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your Financial Intermediary's website for more information.

Table of Contents

Additional Information About Investment Objective, Principal Strategies and Risks

Investment Objective

The State Street Institutional Investment Trust's (the “Trust”) Board of Trustees (the “Board”) may change the Fund's investment strategies and other policies without shareholder approval, except as otherwise indicated. The Board may change the Fund's investment objective without shareholder approval.

Principal Investment Strategies

Additional Information About Risks

The Fund is subject to the following principal risks. The risks are described in alphabetical order and not in the order of importance or potential exposure.

Below Investment-Grade Securities Risk. Securities rated below investment-grade and unrated securities of comparable credit quality (commonly known as “high-yield bonds” or “junk bonds”) lack strong investment-grade characteristics, are considered predominantly speculative with respect to the issuer's continuing ability to make principal and interest payments, and are subject to greater levels of credit, liquidity and market risk than higher-rated securities. They can involve a substantially greater risk of default than higher-rated securities, and their values can decline significantly over short periods of time. Issuers of lower-quality debt securities may have substantially greater risk of insolvency or bankruptcy

Table of Contents

than issuers of higher-quality debt securities. In the event the issuer of a debt security held by the Fund defaults on its payments or becomes insolvent or bankrupt, the Fund may not receive the return it was promised on the investment and could lose its entire investment. The lower ratings of junk bonds reflect a greater possibility that actual or perceived adverse changes in the financial condition of the issuer or in general economic conditions, or an unanticipated rise in interest rates, may impair the ability of the issuer to make payments of interest and principal. If this were to occur, the values of such securities held by the Fund may fall substantially and the Fund could lose some or all of the value of its investment. Lower-quality debt securities tend to be more sensitive to adverse news about the issuer, or the market or economy in general, than higher quality debt securities. The market for lower quality debt securities can be less liquid than for higher quality debt securities, especially during periods of recession or general market decline, which could make it difficult at times for the Fund to sell certain securities at prices used in calculating the Fund's NAV. These securities may have significant volatility.

Convertible Securities Risk. Convertible securities are bonds, debentures, notes, preferred stocks or other securities that may be converted or exchanged (by the holder or by the issuer, depending on the terms of the securities) into shares of the underlying common stock (or cash or securities of equivalent value) at a stated exchange ratio. Convertible securities may be subordinate to other debt securities issued by the same issuer. Issuers of convertible securities are often not as strong financially as issuers with higher credit ratings. Convertible securities typically provide yields lower than comparable non-convertible securities. Their values may be more volatile than those of non-convertible securities, reflecting changes in the values of the securities into which they are convertible.

Counterparty Risk. The Fund will be subject to credit risk with respect to the counterparties with which the Fund enters into derivatives contracts and other transactions such as repurchase agreements or reverse repurchase agreements. The Fund's ability to profit from these types of investments and transactions will depend on the willingness and ability of its counterparty to perform its obligations. If a counterparty fails to meet its contractual obligations, the Fund may be unable to terminate or realize any gain on the investment or transaction, resulting in a loss to the Fund. The Fund may experience significant delays in obtaining any recovery in an insolvency, bankruptcy, or other reorganization proceeding involving its counterparty (including recovery of any collateral posted by it) and may obtain only a limited recovery or may obtain no recovery in such circumstances. If the Fund holds collateral posted by its counterparty, it may be delayed or prevented from realizing on the collateral in the event of a bankruptcy or insolvency proceeding relating to the counterparty. Under applicable law or contractual provisions, including if the Fund enters into an investment or transaction with a financial institution and such financial institution (or an affiliate of the financial institution) experiences financial difficulties, then the Fund may in certain situations be prevented or delayed from exercising its rights to terminate the investment or transaction, or to realize on any collateral and may result in the suspension of payment and delivery obligations of the parties under such investment or transactions or in another institution being substituted for that financial institution without the consent of the Fund. Further, the Fund may be subject to “bail-in” risk under applicable law whereby, if required by the financial institution's authority, the financial institution's liabilities could be written down, eliminated or converted into equity or an alternative instrument of ownership. A bail-in of a financial institution may result in a reduction in value of some or all of its securities and, if the Fund holds such securities or has entered into a transaction with such a financial security when a bail-in occurs, the Fund may also be similarly impacted.

Debt Securities Risk. The values of debt securities may increase or decrease as a result of the following: market fluctuations, changes in interest rates, actual or perceived inability or unwillingness of issuers, guarantors or liquidity providers to make scheduled principal or interest payments or illiquidity in debt securities markets; the risk of low rates of return due to reinvestment of securities during periods of falling interest rates or repayment by issuers with higher coupon or interest rates; and/or the risk of low income due to falling interest rates. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. A rising interest rate environment may cause the value of the Fund's fixed income securities to decrease, an adverse impact on the liquidity of the Fund's fixed income securities, and increased volatility of the fixed income markets. The current low interest rate environment heightens the risks associated with rising interest rates. During periods when interest rates are at low levels, the Fund's yield can be low, and the Fund may have a negative yield (i.e., it may lose money on an operating basis). If the principal on a debt obligation is prepaid before expected, the prepayments of principal may have to be reinvested in obligations paying interest at lower rates. During periods of falling interest rates, the income received by the Fund may decline. Changes in interest rates will likely have a greater effect on the values of debt securities of longer durations. Returns on investments in debt securities could trail the returns on other investment options, including investments in equity securities.

Table of Contents

Derivatives Risk. A derivative is a financial contract the value of which depends on, or is derived from, the value of an underlying asset, interest rate, or index. Derivative transactions typically involve leverage and may have significant volatility. It is possible that a derivative transaction will result in a loss greater than the principal amount invested, that changes in the value of a derivative transaction may not correlate perfectly with the underlying asset, and that the Fund may not be able to close out a derivative transaction at a favorable time or price. Risks associated with derivative instruments include potential changes in value in response to interest rate changes or other market developments or as a result of the counterparty's credit quality; the potential for the derivative transaction not to have the effect the Adviser anticipated or a different or less favorable effect than the Adviser anticipated; the failure of the counterparty to the derivative transaction to perform its obligations under the transaction or to settle a trade; possible mispricing or improper valuation of the derivative instrument; imperfect correlation in the value of a derivative with the asset, rate, or index underlying the derivative; the risk that the Fund may be required to post collateral or margin with its counterparty, and will not be able to recover the collateral or margin in the event of the counterparty's insolvency or bankruptcy; the risk that the Fund will experience losses on its derivatives investments and on its other portfolio investments, even when the derivatives investments may be intended in part or entirely to hedge those portfolio investments; the risks specific to the asset underlying the derivative instrument; lack of liquidity for the derivative instrument, including without limitation absence of a secondary trading market; the potential for reduced returns to the Fund due to losses on the transaction and an increase in volatility; the potential for the derivative transaction to have the effect of accelerating the recognition of gain; and legal risks arising from the documentation relating to the derivative transaction.

Emerging Markets Risk. Investments in emerging markets are generally subject to a greater risk of loss than investments in developed markets. This may be due to, among other things, the possibility of greater market volatility, lower trading volume and liquidity, greater risk of expropriation, nationalization, and social, political and economic instability, greater reliance on a few industries, international trade or revenue from particular commodities, less developed accounting, legal and regulatory systems, higher levels of inflation, deflation or currency devaluation, greater risk of market shut down, and more significant governmental limitations on investment policy as compared to those typically found in a developed market. In addition, issuers (including governments) in emerging market countries may have less financial stability than in other countries. The securities of emerging market companies may trade less frequently and in smaller volumes than more widely held securities. Market disruptions or substantial market corrections may limit very significantly the liquidity of securities of certain companies in a particular country or geographic region, or of all companies in the country or region. The Fund may be unable to liquidate its positions in such securities at any time, or at a favorable price, in order to meet the Fund's obligations. There is also the potential for unfavorable action such as embargo and acts of war. As a result, there will tend to be an increased risk of price volatility in investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar. Settlement and asset custody practices for transactions in emerging markets may differ from those in developed markets. Such differences may include possible delays in settlement and certain settlement practices, such as delivery of securities prior to receipt of payment, which increase the likelihood of a “failed settlement.” Failed settlements can result in losses. For these and other reasons, investments in emerging markets are often considered speculative.

Equity Investing Risk. The market prices of equity securities owned by the Fund may go up or down, sometimes rapidly or unpredictably. The value of a security may decline for a number of reasons that may directly relate to the issuer, such as management performance, financial leverage, non-compliance with regulatory requirements, and reduced demand for the issuer's goods or services. The values of equity securities also may decline due to general industry or market conditions that are not specifically related to a particular company, such as real or perceived adverse economic conditions, changes in the general outlook for corporate earnings, changes in interest or currency rates, or adverse investor sentiment generally. In addition, equity markets tend to move in cycles, which may cause stock prices to fall over short or extended periods of time.

Exchange Traded Products Risk. The Fund is subject to substantially the same risks as those associated with the direct ownership of the securities or other assets represented by the ETPs in which the Fund invests. The shares of certain ETPs may trade at a premium or discount to their net asset values. For example, supply and demand for shares of an underlying ETF or market disruptions may cause the market price of the underlying ETF to deviate from the value of the underlying ETF's investments, which may be exacerbated in less liquid markets. The value of an exchange-traded note may also differ from the valuation of its reference market due to changes in the issuer's credit rating. By investing in ETPs, the Fund bears the proportionate share of any fees and expenses (e.g. management, custody, accounting, and administration) of the ETP, if applicable, in addition to the fees and expenses that the Fund and its shareholders directly bear in connection with the Fund's operations.

Table of Contents

Affiliated ETP Risk. The Adviser may receive management or other fees from Affiliated ETPs, as well as a management fee for managing the Fund. It is possible that a conflict of interest among the Fund and the Affiliated ETPs could affect how the Adviser fulfills its fiduciary duties to the Fund and the Affiliated ETPs. Because the amount of the investment management fees to be retained by the Adviser may differ depending upon the Affiliated ETPs in which the Fund invests, there is a conflict of interest for the Adviser in selecting the Affiliated ETPs. In addition, the Adviser may have an incentive to take into account the effect on an Affiliated ETP in which the Fund may invest in determining whether, and under what circumstances, to purchase or sell shares in that Affiliated ETP. Although the Adviser takes steps to address the conflicts of interest, it is possible that the conflicts could impact the Fund.

Interest Rate Risk. Interest rate risk is the risk that the securities held by the Fund will decline in value because of increases in market interest rates. Duration is a measure used to determine the sensitivity of a security's price to changes in interest rates. Debt securities with longer durations tend to be more sensitive to changes in interest rates, usually making them more volatile than debt securities with shorter durations. For example, the value of a security with a duration of five years would be expected to decrease by 5% for every 1% increase in interest rates. Falling interest rates also create the potential for a decline in the Fund's income and yield. Interest-only and principal-only securities are especially sensitive to interest rate changes, which can affect not only their prices but can also change the income flows and repayment assumptions about those investments. Variable and floating rate securities also generally increase or decrease in value in response to changes in interest rates, although generally to a lesser degree than fixed-rate securities. A substantial increase in interest rates may also have an adverse impact on the liquidity of a security, especially those with longer durations. Changes in governmental policy, including changes in central bank monetary policy, could cause interest rates to rise rapidly, or cause investors to expect a rapid rise in interest rates. This could lead to heightened levels of interest rate, volatility and liquidity risks for the fixed income markets generally and could have a substantial and immediate effect on the values of the Fund's investments.

Liquidity Risk. Liquidity risk is the risk that the Fund may not be able to dispose of securities or close out derivatives transactions readily at a favorable time or prices (or at all) or at prices approximating those at which the Fund currently values them. For example, certain investments may be subject to restrictions on resale, may trade in the over-the-counter market or in limited volume, or may not have an active trading market. Illiquid investments may trade at a discount from comparable, more liquid investments and may be subject to wide fluctuations in market value. It may be difficult for the Fund to value illiquid investments accurately. The market for certain investments may become illiquid under adverse market or economic conditions independent of any specific adverse changes in the conditions of a particular issuer. Disposal of illiquid investments may entail registration expenses and other transaction costs that are higher than those for liquid securities. The Fund may seek to borrow money to meet its obligations (including among other things redemption obligations) if it is unable to dispose of illiquid investments, resulting in borrowing expenses and possible leveraging of the Fund. In some cases, due to unanticipated levels of illiquidity the Fund may choose to meet its redemption obligations wholly or in part by distributions of assets in-kind.

The term “illiquid securities” for this purpose means securities that the Fund reasonably expects cannot be sold or disposed of in current market conditions in seven calendar days or less without the sale or disposition significantly changing the market value of the securities. If any Fund determines at any time that it owns illiquid securities in excess of 15% of its net assets, it will cease to undertake new commitments to acquire illiquid securities until its holdings are no longer in excess of 15% of its NAV, report the occurrence in compliance with Rule 30b1-10 under the Investment Company Act of 1940 (the “1940 Act”) and, depending on circumstances, may take additional steps to reduce its holdings of illiquid securities.

In compliance with the U.S. Securities and Exchange Commission's (“SEC”) new liquidity risk management rule applicable to open-end mutual funds, the Fund will establish a liquidity risk management program. The rule's impact on the Fund, and on the open-end fund industry in general, is not yet fully known, but the rule could affect the Fund's performance and its ability to achieve its investment objectives. While the liquidity risk management program attempts to assess and manage liquidity risk, there is no guarantee it will be effective in its operations and may not reduce the liquidity risk inherent in the Fund's investments.

Management Risk. The Fund is actively managed. The Adviser's judgments about the attractiveness, relative value, or potential appreciation of a particular sector, security, commodity or investment strategy may prove to be incorrect, and may cause the Fund to incur losses. There can be no assurance that the Adviser's investment techniques and decisions will produce the desired results.

Table of Contents

Market Risk. Market prices of investments held by the Fund will go up or down, sometimes rapidly or unpredictably. The Fund's investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile, and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, changes in actual or perceived creditworthiness of issuers and general market liquidity. Even if general economic conditions do not change, the value of an investment in the Fund could decline if the particular industries, sectors or companies in which the Fund invests do not perform well or are adversely affected by events. Further, legal, political, regulatory and tax changes also may cause fluctuations in markets and securities prices. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues, or other events could have a significant impact on the Fund and its investments.

An outbreak of a respiratory disease caused by a novel coronavirus (known as COVID-19) first detected in China in December 2019 has resulted in a global pandemic and major disruptions to economies and markets around the world, including the United States. Financial markets experienced and may continue to experience extreme volatility and severe losses, and trading in many instruments was and may continue to be disrupted as a result. Liquidity for many instruments was and may continue to be greatly reduced for periods of time. Some interest rates are very low and in some cases yields are negative. Governments and central banks, including the Federal Reserve in the United States, have taken extraordinary and unprecedented actions to support local and global economies and the financial markets. The impact of these measures, and whether they will be effective to mitigate the economic and market disruption, will not be known for some time. In addition, the outbreak of COVID-19, and measures taken to mitigate its effects, could result in disruptions to the services provided to the Fund by its service providers.

Mortgage-Related and Other Asset-Backed Securities Risk. Investments in mortgage-related and other asset-backed securities are subject to the risk of significant credit downgrades, illiquidity, and defaults to a greater extent than many other types of fixed income investments. The liquidity of mortgage-related and asset-backed securities may change over time. Mortgage-related securities represent a participation in, or are secured by, mortgage loans. Other asset-backed securities are typically structured like mortgage-related securities, but instead of mortgage loans or interests in mortgage loans, the underlying assets may include, for example, items such as motor vehicle installment sales or installment loan contracts, leases on various types of real and personal property, and receivables from credit card agreements. During periods of falling interest rates, mortgage-related and other asset-backed securities, which typically provide the issuer with the right to prepay the security prior to maturity, may be prepaid, which may result in the Fund having to reinvest the proceeds in other investments at lower interest rates. During periods of rising interest rates, the average life of mortgage-related and other asset-backed securities may extend because of slower-than expected principal payments. This may lock in a below market interest rate, increase the security's duration and interest rate sensitivity, and reduce the value of the security. As a result, mortgage-related and other asset-backed securities may have less potential for capital appreciation during periods of declining interest rates than other debt securities of comparable maturities, although they may have a similar risk of decline in market values during periods of rising interest rates. Prepayment rates are difficult to predict and the potential impact of prepayments on the value of a mortgage-related or other asset-backed security depends on the terms of the instrument and can result in significant volatility. The price of a mortgage-related or other asset-backed security also depends on the credit quality and adequacy of the underlying assets or collateral. Mortgage-related or other asset-backed securities issued by non- governmental issuers (such as commercial banks, savings and loan institutions, private mortgage insurance companies, mortgage bankers and other secondary market issuers) will generally entail greater credit risk than obligations guaranteed by the U.S. Government. Defaults on the underlying assets, if any, may impair the value of a mortgage-related or other asset-backed security. For some asset-backed securities in which the Fund invests, such as those backed by credit card receivables, the underlying cash flows may not be supported by a security interest in a related asset. Moreover, the values of mortgage-related and other asset-backed securities may be substantially dependent on the servicing of the underlying asset pools, and are therefore subject to risks associated with the negligence or malfeasance by their servicers and to the credit risk of their servicers. In certain situations, the mishandling of related documentation may also affect the rights of securities holders in and to the underlying collateral. There may be legal and practical limitations on the enforceability of any security interest granted with respect to underlying assets, or the value of the underlying assets, if any, may be insufficient if the issuer defaults.

In a “forward roll” transaction, a Fund will sell a mortgage-related security to a bank or other permitted entity and simultaneously agree to purchase a similar security from the institution at a later date at an agreed upon price. The mortgage securities that are purchased will bear the same interest rate as those sold, but generally will be collateralized by differ-

Table of Contents

ent pools of mortgages with different prepayment histories than those sold. The values of such transactions will be affected by many of the same factors that affect the values of mortgage-related securities generally. In addition, forward roll transactions may have the effect of creating investment leverage in a Fund.

Non-U.S. Securities Risk. Investments in securities of non-U.S. issuers (including depositary receipts) entail risks not typically associated with investing in securities of U.S. issuers. Similar risks may apply to securities traded on a U.S. securities exchange that are issued by entities with significant exposure to non-U.S. countries. In certain countries, legal remedies available to investors may be more limited than those available with regard to U.S. investments. Because non-U.S. securities are typically denominated and traded in currencies other than the U.S. dollar, the value of the Fund's assets, to the extent they are non-U.S. dollar denominated, may be affected favorably or unfavorably by currency exchange rates, exchange control regulations, and restrictions or prohibitions on the repatriation of non-U.S. currencies. Income and gains with respect to investments in certain countries may be subject to withholding and other taxes. There may be less information publicly available about a non-U.S. entity than about a U.S. entity, and many non-U.S. entities are not subject to accounting, auditing, and financial reporting standards, regulatory framework and practices comparable to those in the United States. The securities of some non-U.S. entities are less liquid and at times more volatile than securities of comparable U.S. entities, and could become subject to sanctions or embargoes that adversely affect the Fund's investment. Non-U.S. transaction costs, such as brokerage commissions and custody costs may be higher than in the U.S. In addition, there may be a possibility of nationalization or expropriation of assets, imposition of currency exchange controls, confiscatory taxation, and diplomatic developments that could adversely affect the values of the Fund's investments in certain non-U.S. countries. Investments in securities of non-U.S. issuers also are subject to foreign political and economic risk not associated with U.S. investments, meaning that political events (civil unrest, national elections, changes in political conditions and foreign relations, imposition of exchange controls and repatriation restrictions), social and economic events (labor strikes, rising inflation) and natural disasters occurring in a country where the Fund invests could cause the Fund's investments in that country to experience gains or losses.

Preferred Securities Risk. Generally, preferred security holders have no or limited voting rights with respect to the issuing company. In addition, preferred securities are subordinated to bonds and other debt instruments in a company's capital structure and therefore will be subject to greater credit risk than those debt instruments. Unlike debt securities, dividend payments on a preferred security typically must be declared by the issuer's board of directors. An issuer's board of directors is generally not under any obligation to pay a dividend (even if such dividends have accrued), and may suspend payment of dividends on preferred securities at any time. Therefore, in the event an issuer of preferred securities experiences economic difficulties, the issuer's preferred securities may lose substantial value due to the reduced likelihood that the issuer's board of directors will declare a dividend and the fact that the preferred security may be subordinated to other securities of the same issuer. Further, because many preferred securities pay dividends at a fixed rate, their market price can be sensitive to changes in interest rates in a manner similar to bonds - that is, as interest rates rise, the value of the preferred securities held by the Fund are likely to decline. Therefore, to the extent that the Fund invests a substantial portion of its assets in fixed rate preferred securities, rising interest rates may cause the value of the Fund's investments to decline significantly. In addition, because many preferred securities allow holders to convert the preferred securities into common stock of the issuer, their market price can be sensitive to changes in the value of the issuer's common stock and, therefore, declining common stock values may also cause the value of the Fund's investments to decline. Preferred securities often have call features which allow the issuer to redeem the security at its discretion. The redemption of a preferred security having a higher than average yield may cause a decrease in the Fund's yield.

Portfolio Turnover Risk. The Fund may engage in frequent trading of its portfolio securities. Fund turnover generally involves a number of direct and indirect costs and expenses to the Fund, including, for example, brokerage commissions, dealer mark-ups and bid/asked spreads, and transaction costs on the sale of securities and reinvestment in other securities. The costs related to increased portfolio turnover may have the effect of reducing the Fund's investment return, and the sale of securities by the Fund may result in the realization of taxable capital gains, including short-term capital gains, which are taxed to individuals as ordinary income.

Risk of Investment in Other Pools. If the Fund invests in another pooled investment vehicle, it is exposed to the risk that the other pool will not perform as expected. The Fund is exposed indirectly to all of the risks applicable to an investment in such other pool. In addition, lack of liquidity in the underlying pool could result in its value being more volatile than the underlying portfolio of securities, and may limit the ability of the Fund to sell or redeem its interest in the pool at a time or at a price it might consider desirable. The investment policies and limitations of the other pool may not be the same as those of the Fund; as a result, the Fund may be subject to additional or different risks, or may achieve a reduced

Table of Contents

investment return, as a result of its investment in another pool. If a pool is an exchange-traded fund or other product traded on a securities exchange or otherwise actively traded, its shares may trade at a premium or discount to their NAV, an effect that might be more pronounced in less liquid markets. The Fund bears its proportionate share of the fees and expenses of any pool in which it invests. The Adviser or an affiliate may serve as investment adviser to a pool in which the Fund may invest, leading to potential conflicts of interest. For example, the Adviser or its affiliates may receive fees based on the amount of assets invested in the pool. Investment by the Fund in the pool may be beneficial to the Adviser or an affiliate in the management of the pool, by helping to achieve economies of scale or enhancing cash flows. Due to this and other factors, the Adviser may have an incentive to invest the Fund's assets in a pool sponsored or managed by the Adviser or its affiliates in lieu of investments by the Fund directly in portfolio securities, or may have an incentive to invest in the pool over a pool sponsored or managed by others. Similarly, the Adviser may have an incentive to delay or decide against the sale of interests held by the Fund in a pool sponsored or managed by the Adviser or its affiliates. It is possible that other clients of the Adviser or its affiliates will purchase or sell interests in a pool sponsored or managed by the Adviser or its affiliates at prices and at times more favorable than those at which the Fund does so.

Senior Loan Risk. Investments in Senior Loans are subject to credit risk and general investment risk. Credit risk refers to the possibility that the borrower of a Senior Loan will be unable and/or unwilling to make timely interest payments and/or repay the principal on its obligation. Default in the payment of interest or principal on a Senior Loan will result in a reduction in the value of the Senior Loan and consequently a reduction in the value of the Fund's investments and a potential decrease in the NAV of the Fund. Senior Loans are also subject to the risk that the value of the collateral securing a Senior Loan may decline, be insufficient to meet the obligations of the borrower or be difficult to liquidate. In addition, the Fund's access to the collateral may be limited by bankruptcy or other insolvency laws. Further, loans held by the Fund may not be considered securities and, therefore, purchasers, such as the Fund, may not be entitled to rely on the strong anti-fraud protections of the federal securities laws. Some Senior Loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could subordinate the Senior Loans to presently existing or future indebtedness of the borrower or take other action detrimental to lenders, including the Fund, such as invalidation of Senior Loans or causing interest previously paid to be refunded to the borrower. Senior Loans are also subject to high yield securities risks and liquidity risks described above. In addition, bank loans may be subject to extended settlement periods, which may impair the Fund's ability to sell or realize the full value of its loans in the event of a need to liquidate such loans in a compressed period of time. Some of the loans in which the Fund may invest or obtain exposure to may be “covenant-lite” loans. Covenant-lite loans may contain fewer or no maintenance covenants compared to other loans and may not include terms which allow the lender to monitor the performance of the borrower and declare a default if certain criteria are breached. The Fund may experience relatively greater realized or unrealized losses or delays in enforcing its rights on its holdings of covenant-lite loans than its holdings of loans with the usual covenants.

Settlement Risk. Markets in different countries have different clearance and settlement procedures and in certain markets there have been times when settlements have been unable to keep pace with the volume of transactions. Delays in settlement may increase credit risk to the Fund, limit the ability of the Fund to reinvest the proceeds of a sale of securities, hinder the ability of the Fund to lend its portfolio securities, and potentially subject the Fund to penalties for its failure to deliver to on-purchasers of securities whose delivery to the Fund was delayed. Delays in the settlement of securities purchased by the Fund may limit the ability of the Fund to sell those securities at times and prices it considers desirable, and may subject the Fund to losses and costs due to its own inability to settle with subsequent purchasers of the securities from it. The Fund may be required to borrow monies it had otherwise expected to receive in connection with the settlement of securities sold by it, in order to meet its obligations to others. Limits on the ability of the Fund to purchase or sell securities due to settlement delays could increase any variance between the Fund's performance and that of its benchmark index.

U.S. Government Securities Risk. U.S. government securities, such as Treasury bills, notes and bonds and mortgage-backed securities guaranteed by the Government National Mortgage Association (“Ginnie Mae”), are supported by the full faith and credit of the United States; others are supported by the right of the issuer to borrow from the U.S. Treasury; others are supported by the discretionary authority of the U.S. government to purchase the agency's obligations; and still others are supported only by the credit of the issuing agency, instrumentality, or enterprise. Although U.S. government-sponsored enterprises such as the Federal Home Loan Mortgage Corporation (“Freddie Mac”) and the Federal National Mortgage Association (“Fannie Mae”) may be chartered or sponsored by Congress, they are not funded by Congressional appropriations, and their securities are not issued by the U.S. Treasury nor supported by the full faith and credit of the U.S. government. There is no assurance that the U.S. government would provide financial support to its agencies and instrumentalities if not required to do so. In addition, certain governmental entities have been subject to regulatory scrutiny regarding their accounting policies and practices and other concerns that may result in legislation, changes in regu-

Table of Contents

latory oversight and/or other consequences that could adversely affect the credit quality, availability, or investment character of securities issued by these entities. The value and liquidity of U.S. government securities may be affected adversely by changes in the ratings of those securities. Securities issued by the U.S. Treasury historically have been considered to present minimal credit risk. The downgrade in the long-term U.S. credit rating by at least one major rating agency has introduced greater uncertainty about the ability of the U.S. to repay its obligations. A further credit rating downgrade or a U.S. credit default could decrease the value and increase the volatility of the Fund's investments.

Valuation Risk. This may occur more often in times of market turmoil or reduced liquidity. There are multiple methods that can be used to value a portfolio holding when market quotations are not readily available. The value established for any portfolio holding at a point in time might differ from what would be produced using a different methodology or if it had been priced using market quotations. Portfolio holdings that are valued using techniques other than market quotations, including “fair valued” securities, may be subject to greater fluctuation in their valuations from one day to the next than if market quotations were used. Technological issues or other service disruption issues involving third-party service providers may cause the Fund to value its investments incorrectly. In addition, there is no assurance that the Fund could sell or close out a portfolio position for the value established for it at any time, and it is possible that the Fund would incur a loss because a portfolio position is sold or closed out at a discount to the valuation established by the Fund at that time. Investors who purchase or redeem Fund Shares on days when the Fund is holding fair-valued investments may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the Fund had not fair-valued the holding(s) or had used a different valuation methodology.

When-Issued, TBA and Delayed Delivery Securities Risk. The Fund may purchase securities on a when-issued, TBA or delayed delivery basis and may purchase securities on a forward commitment basis. The purchase price of the securities is typically fixed at the time of the commitment, but delivery and payment can take place a month or more after the date of the commitment. The prices of the securities so purchased or sold are subject to market fluctuations. At the time of delivery of the securities, the value may be more or less than the purchase or sale price. Purchase of securities on a when-issued, TBA, delayed delivery, or forward commitment basis may give rise to investment leverage, and may result in increased volatility of the Fund's net asset value. Default by, or bankruptcy of, a counterparty to a when-issued, TBA or delayed delivery transaction would expose the Fund to possible losses because of an adverse market action, expenses or delays in connection with the purchase or sale of the pools specified in such transaction. Financial Industry Regulatory Authority, Inc. rules impose mandatory margin requirements for certain types of when-issued, TBA delayed delivery or forward commitment transactions, with limited exceptions. Such transactions require mandatory collateralization which may increase the cost of such transactions and impose added operational complexity.

Additional Information About Non-Principal Investment Strategies and Risks

The investments described below reflect the Fund's current practices. In addition to the principal risks described above, other risks are described in some of the descriptions of the investments below:

Conflicts of Interest Risk. An investment in the Fund will be subject to a number of actual or potential conflicts of interest. For example, the Adviser or its affiliates may provide services to the Fund, such as securities lending agency services, custodial, administrative, bookkeeping, and accounting services, transfer agency and shareholder servicing, securities brokerage services, and other services for which the Fund would compensate the Adviser and/or such affiliates. The Fund may invest in other pooled investment vehicles sponsored, managed, or otherwise affiliated with the Adviser. There is no assurance that the rates at which the Fund pays fees or expenses to the Adviser or its affiliates, or the terms on which it enters into transactions with the Adviser or its affiliates will be the most favorable available in the market generally or as favorable as the rates the Adviser or its affiliates make available to other clients. Because of its financial interest, the Adviser will have an incentive to enter into transactions or arrangements on behalf of the Fund with itself or its affiliates in circumstances where it might not have done so in the absence of that interest, provided that the Adviser will comply with applicable regulatory requirements.

The Adviser and its affiliates serve as investment adviser to other clients and may make investment decisions that may be different from those that will be made by the Adviser on behalf of the Fund. For example, the Adviser may provide asset allocation advice to some clients that may include a recommendation to invest in or redeem from particular issuers while not providing that same recommendation to all clients invested in the same or similar issuers. The Adviser may (subject to applicable law) be simultaneously seeking to purchase (or sell) investments for the Fund and to sell (or purchase) the same investment for accounts, funds, or structured products for which it serves as asset manager, or for other clients or affiliates. The Adviser and its affiliates may invest for clients in various securities that are senior, pari passu or

Table of Contents

junior to, or have interests different from or adverse to, the securities that are owned by the Fund. The Adviser or its affiliates, in connection with its other business activities, may acquire material nonpublic confidential information that may restrict the Adviser from purchasing securities or selling securities for itself or its clients (including the Fund) or otherwise using such information for the benefit of its clients or itself.

The foregoing does not purport to be a comprehensive list or complete explanation of all potential conflicts of interests which may affect the Fund. The Fund may encounter circumstances, or enter into transactions, in which conflicts of interest that are not listed or discussed above may arise.

Cybersecurity Risk. With the increased use of technologies such as the Internet and the dependence on computer systems to perform business and operational functions, funds (such as the Fund) and their service providers (including the Adviser) may be prone to operational and information security risks resulting from cyber-attacks and/or technological malfunctions. In addition, the global spread of COVID-19 has caused the Fund and its service providers to implement business continuity plans, including widespread use of work-from-home arrangements. In general, cyber-attacks are deliberate, but unintentional events may have similar effects. Cyber-attacks include, among others, stealing or corrupting data maintained online or digitally, preventing legitimate users from accessing information or services on a website, releasing confidential information without authorization, and causing operational disruption. Successful cyber-attacks against, or security breakdowns of, the Fund, the Adviser or a custodian, transfer agent, or other affiliated or third-party service provider may adversely affect the Fund or its shareholders. For instance, cyber-attacks or technical malfunctions may interfere with the processing of shareholder or other transactions, affect the Fund's ability to calculate its NAV, cause the release of private shareholder information or confidential Fund information, impede trading, cause reputational damage, and subject the Fund to regulatory fines, penalties or financial losses, reimbursement or other compensation costs, and additional compliance costs. Cyber-attacks or technical malfunctions may render records of Fund assets and transactions, shareholder ownership of Fund Shares, and other data integral to the functioning of the Fund inaccessible or inaccurate or incomplete. The Fund may also incur substantial costs for cybersecurity risk management in order to prevent cyber incidents in the future. The Fund and its shareholders could be negatively impacted as a result. While the Adviser has established business continuity plans and systems designed to minimize the risk of cyber-attacks through the use of technology, processes and controls, there are inherent limitations in such plans and systems, including the possibility that certain risks have not been identified, given the evolving nature of this threat. The Fund relies on third-party service providers for many of its day-to-day operations, and will be subject to the risk that the protections and protocols implemented by those service providers will be ineffective to protect the Fund from cyber-attack. The Adviser does not control the cybersecurity plans and systems put in place by third-party service providers, and such third-party service providers may have limited indemnification obligations to the Adviser or the Fund. Similar types of cybersecurity risks or technical malfunctions also are present for issuers of securities in which the Fund invests, which could result in material adverse consequences for such issuers, and may cause the Fund's investment in such securities to lose value.

LIBOR Risk. Certain instruments in which the Fund may invest rely in some fashion upon London-Interbank Offered Rate (“LIBOR”). LIBOR is an average interest rate, determined by the ICE Benchmark Administration, that banks charge one another for the use of short-term money. On March 5, 2021, the United Kingdom's Financial Conduct Authority (“FCA”) and LIBOR's administrator, ICE Benchmark Administration (“IBA”), announced that most LIBOR settings will no longer be published after the end of 2021 and a majority of U.S. dollar LIBOR settings will no longer be published after June 30, 2023. It is possible that the FCA may compel the IBA to publish a subset of LIBOR settings after these dates on a “synthetic” basis, but any such publications would be considered non-representative of the underlying market. The transition away from and eventual elimination of LIBOR may involve, among other things, increased volatility or illiquidity in markets for instruments that currently rely on LIBOR, particularly insofar as the documentation governing such instruments does not include “fall back” provisions addressing the transition from LIBOR. With respect to most LIBOR-based instruments in which the Fund may invest, the pricing and other terms governing the adoption of any successor rate are expected to limit or eliminate the direct effect of the transition to a successor rate on the value of such instruments. However, uncertainty and volatility arising from the transition may result in a reduction in the value of certain LIBOR-based instruments held by the Fund or reduce the effectiveness of related transactions such as hedges. Any such effects of the transition away from LIBOR, as well as other unforeseen effects, could result in losses to the Fund.

Money Market Risk. An investment in a money market fund is not a deposit of any bank and is not insured or guaranteed by the FDIC or any other government agency. Certain money market funds seek to preserve the value of their shares at $1.00 per share, although there can be no assurance that they will do so, and it is possible to lose money by investing in such a money market fund. A major or unexpected change in interest rates or a decline in the credit quality of an issuer or entity providing credit support, an inactive trading market for money market instruments, or adverse market,

Table of Contents

economic, industry, political, regulatory, geopolitical, and other conditions could cause the share price of such a money market fund to fall below $1.00. It is possible that such a money market fund will issue and redeem shares at $1.00 per share at times when the fair value of the money market fund's portfolio per share is more or less than $1.00. None of State Street Corporation, State Street Bank and Trust Company (“State Street”), State Street Global Advisors (“SSGA”), SSGA FM or their affiliates (“State Street Entities”) guarantee the value of an investment in a money market fund at $1.00 per share. Investors should have no expectation of capital support to a money market fund from State Street Entities. Other money market funds price and transact at a “floating” NAV that will fluctuate along with changes in the market-based value of fund assets. Shares sold utilizing a floating NAV may be worth more or less than their original purchase price. Recent changes in the regulation of money market funds may affect the operations and structures of money market funds. A money market fund may be permitted or required to impose redemption fees or to impose limitations on redemptions during periods of high illiquidity in the markets for the investments held by it.

Securities Lending Risk. The Fund may lend portfolio securities in an amount not to exceed 40% of the value of its net assets. For these purposes, net assets shall exclude the value of all assets received as collateral for the loan. Such loans may be terminated at any time. Any such loans must be continuously secured by collateral (either cash or other obligations as may be permitted under the Fund's securities lending program) maintained on a current basis in an amount at least equal to the market value of the securities loaned by the Fund, marked to market each trading day. In a loan transaction, as compensation for lending its securities, the Fund will receive a portion of the dividends or interest accrued on the securities held as collateral or, in the case of cash collateral, a portion of the income from the investment of such cash. In addition, the Fund will receive the amount of all dividends, interest and other distributions on the loaned securities. However, the borrower has the right to vote the loaned securities. The Fund will call loans to vote proxies if a material issue affecting the investment is to be voted upon. Efforts to recall such securities promptly may be unsuccessful, especially for foreign securities or thinly traded securities, and may involve expenses to the Fund. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. Should the borrower of the securities fail financially, the Fund may experience delays in recovering the securities or exercising its rights in the collateral. Loans are made only to borrowers that are deemed by the securities lending agent to be of good financial standing. In a loan transaction, the Fund will also bear the risk of any decline in value of securities acquired with cash collateral. The Fund expects to invest cash collateral in a pooled investment vehicle advised by the Adviser. With respect to index funds, to the extent the collateral provided or investments made with cash collateral differ from securities included in the relevant Index, such collateral or investments may have a greater risk of loss than the securities included in the Index. In addition, the Fund will be subject to the risk that any income generated by reinvesting cash collateral is lower than any fees the Fund has agreed to pay a borrower.

Temporary Defensive Positions. In response to actual or perceived adverse market, economic, political, or other conditions, the Fund may (but will not necessarily), without notice, depart from its principal investment strategies by temporarily investing for defensive purposes. Temporary defensive positions may include, but are not limited to, cash, cash equivalents, U.S. government securities, repurchase agreements collateralized by such securities, money market funds, and high-quality debt investments. While investing defensively, the Fund may maintain a substantial portion of its assets in cash, on which the Fund may earn little if any income. If the Fund invests for defensive purposes, it may not achieve its investment objective. In addition, the defensive strategy may not work as intended.

Portfolio Holdings Disclosure

The Fund's portfolio holdings disclosure policy is described in the SAI.

Table of Contents

Management and Organization

The Fund is a separate, diversified series of the State Street Institutional Investment Trust (the “Trust”), which is an open-end management investment company organized as a business trust under the laws of the Commonwealth of Massachusetts.

Investment Adviser

SSGA FM serves as the investment adviser to the Fund and, subject to the oversight of the Board, is responsible for the investment management of the Fund. The Adviser provides an investment management program for the Fund and manages the investment of the Fund's assets. The Adviser is a wholly-owned subsidiary of State Street Global Advisors, Inc., which itself is a wholly-owned subsidiary of State Street Corporation. The Adviser is registered with the U.S. Securities and Exchange Commission (“SEC”) under the Investment Advisers Act of 1940, as amended. The Adviser and certain other affiliates of State Street Corporation make up SSGA. SSGA is one of the world's largest institutional money managers and the investment management arm of State Street Corporation. As of [ ], the Adviser managed approximately $[ ] billion in assets and SSGA managed approximately $[ ] trillion in assets. The Adviser's principal business address is One Iron Street, Boston, Massachusetts 02210.

The Fund has entered into an investment advisory agreement with the Adviser, pursuant to which the Adviser will manage the Fund's assets, for compensation paid at an annual rate of [ ]% of the Fund's average daily net assets. A discussion regarding the Board's consideration of the Fund's Investment Advisory Agreement will be provided in the Fund's initial Annual or Semi-Annual Report to Shareholders.

Total Annual Fund Operating Expense Waiver. SSGA FM, as the investment adviser to the Fund, is contractually obligated, through [April 30, 2023], (i) to waive up to the full amount of the advisory fee payable by the Fund, and/or (ii) to reimburse the Fund to the extent that Total Annual Fund Operating Expenses (exclusive of non-recurring account fees, interest, taxes and extraordinary expenses) exceed [ ]% of average daily net assets on an annual basis for the Fund. This waiver and/or reimbursement arrangement may not be terminated prior to [April 30, 2023] except with approval of the Fund's Board of Trustees.

Portfolio Management

The Adviser manages the Fund using a team of investment professionals. The team approach is used to create an environment that encourages the flow of investment ideas. The portfolio managers within the team work together in a cohesive manner to develop and enhance techniques that drive the investment process for the investment strategy. This approach requires portfolio managers to share a variety of responsibilities including investment strategy and analysis while retaining responsibility for the implementation of the strategy within any particular portfolio. The approach also enables the team to draw upon the resources of other groups within SSGA. The portfolio management team is overseen by the SSGA Investment Committee.

The professionals primarily responsible for the day-to-day management of the Fund include the following:

Matthew Nest, CFA, is a Managing Director of SSGA and the Adviser and the Global Head of Macro Strategies. In that capacity, he is responsible for global interest rate and currency portfolio management. Prior to joining SSGA in 2016, Mr. Nest spent sixteen years at PIMCO in a number of functions including portfolio management, strategy and business development. He has worked in the U.S., Sydney, Singapore and Hong Kong. He started his career at Bank of America and has been working in the investment industry since 1999. Mr. Nest has a Bachelor of Science in Economics from Arizona State University and a Master of Business Administration from the University of Chicago's Booth School of Business. He earned the Chartered Financial Analyst (CFA) designation and is a member of the CFA Institute.

Orhan Imer, CFA, Ph.D., is a Vice President of SSGA and the Adviser and a Senior Portfolio Manager for LDI & Multi-Sector Strategies within the Global Fixed Income, Cash and Currency Team. In his current role as part of the Fixed Income Beta Solutions Group, he is responsible for managing several fixed income funds and ETFs including Global Rates/Inflation, U.S. Core and Credit portfolios. He is a member of the firm's Technical Committee which oversees all of SSGA's quantitative investment research. Prior to joining SSGA in 2017, Mr. Imer held several roles during his tenure at Columbia Threadneedle Investments. Most recently, he was a senior portfolio manager and Head of LDI and Inflation Solutions with responsibilities for overall Fixed Income Strategy and Solutions for the Multi-Asset team. He was a portfolio manager on a diverse line-up of mutual funds and institutional strategies including Global Rates/Inflation, Real Return, and the firm's flagship Global Macro and Risk Parity strategies. Previously, he worked as a senior quantitative

Table of Contents

strategist for the Investment Strategies Group at Bank of America/ Merrill Lynch. Before that, he was a senior financial engineer at Algorithmics (now part of IBM). He has also worked as a researcher at General Electric's Global Research and has been a member of the investment community since 2005. Mr. Imer received his Master of Science and Ph.D. degrees in Electrical and Computer Engineering from the University of Illinois at Urbana-Champaign. He earned the Chartered Financial Analyst (CFA) designation and is a member of CFA Society Boston, Inc.

Additional information about the portfolio managers' compensation, other accounts managed by the portfolio managers, and the portfolio managers' ownership of the Fund is available in the SAI.

Other Fund Services

The Administrator, Sub-Administrator and Custodian

The Adviser serves as administrator of the Fund. The Fund currently pays the Adviser an administrative fee at the annual rate of 0.05% with respect to each of its share classes. State Street Bank and Trust Company (“State Street”), a subsidiary of State Street Corporation, serves as sub-administrator and custodian for the Fund. The Adviser and the Fund each bear a portion of the fee paid to State Street for providing sub-administration and custodian services with respect to the Fund.

The Transfer Agent and Dividend Disbursing Agent

DST Asset Manager Solutions, Inc. is the Fund's transfer agent and dividend disbursing agent (the “Transfer Agent”).

The Distributor

State Street Global Advisors Funds Distributors, LLC serves as the Fund's distributor (“SSGA FD”) pursuant to the Distribution Agreement between SSGA FD and the Trust.

Additional Information

The Trustees of the Trust oversee generally the operations of the Fund and the Trust. The Trust enters into contractual arrangements with various parties, including among others the Fund's investment adviser, custodian, transfer agent, and accountants, who provide services to the Fund. Shareholders are not parties to any such contractual arrangements or intended beneficiaries of those contractual arrangements, and those contractual arrangements are not intended to create in any shareholder any right to enforce them directly against the service providers or to seek any remedy under them directly against the service providers.

This Prospectus provides information concerning the Trust and the Fund that you should consider in determining whether to purchase shares of the Fund. Neither this Prospectus, nor the related SAI, is intended, or should be read, to be or to give rise to an agreement or contract between the Trust or the Fund and any investor, or to give rise to any rights in any shareholder or other person other than any rights under federal or state law that may not be waived.

Shareholder Information

Determination of Net Asset Value

The Fund determines its NAV per share once each business day as of the scheduled close of regular trading on the New York Stock Exchange (the “NYSE”). Pricing does not occur on NYSE holidays. A business day is one on which the NYSE is open for regular trading. The Federal Reserve is closed on certain holidays on which the NYSE is open. These holidays are Columbus Day and Veterans Day. On these holidays, you will not be able to purchase shares by wiring Federal Funds because Federal Funds wiring does not occur on days when the Federal Reserve is closed. In unusual circumstances, such as an emergency or an unscheduled close or halt of trading on the NYSE, the time at which share prices are determined may be changed. The NAV per share is based on the market value of the investments held in the Fund. The NAV of the Fund's Shares is calculated by dividing the value of the assets of the Fund attributable to that class less the liabilities of the Fund attributable to that class by the number of shares in the class outstanding. As noted in this Prospectus, the Fund may invest in securities listed on foreign exchanges, or otherwise traded in a foreign market, and those securities may trade on weekends or other days when the Fund does not price its shares. Consequently, the NAV of the Fund's Shares may change on days when shareholders are not able to purchase or redeem the Fund's Shares. Purchase and redemption orders for Fund Shares are processed, respectively, at the NAV next determined after the Fund accepts a purchase order or receives a redemption request in good form. The Fund values each security or other investment pursuant to guidelines adopted by the Board. Securities or other investments may be valued at fair value, as determined in good faith and pursuant to procedures approved by the Fund's Board, under certain limited circumstances. For

Table of Contents

example, fair value pricing may be used when market quotations are not readily available or reliable, such as when (i) trading for a security is restricted; or (ii) a significant event, as determined by the Adviser, that may affect the value of one or more securities or other investments held by the Fund occurs after the close of a related exchange but before the determination of the Fund's NAV. Attempts to determine the fair value of securities or other investments introduce an element of subjectivity to the pricing of securities or other investments. As a result, the price of a security or other investment determined through fair valuation techniques may differ from the price quoted or published by other sources and may not accurately reflect the price the Fund would have received had it sold the investment. To the extent that the Fund invests in the shares of other registered open-end investment companies that are not traded on an exchange (mutual funds), such shares are valued at their published NAVs per share as reported by the funds. The prospectuses of these funds explain the circumstances under which the funds will use fair value pricing and the effects of using fair value pricing.

Investing in State Street Institutional Investment Trust Shares

Mutual funds advised by SSGA FM (the “State Street Funds”) and their service providers have a legal obligation to collect from you certain personal information about you at the time you open an account in order to verify your identity and the source of your payment. If you do not provide this information, you may not be able to open an account with the State Street Funds. If the State Street Funds believe that they have uncovered unlawful activity, the State Street Funds and their service providers may close your account and take any action they deem reasonable or required by law. The State Street Funds reserve the right to reject any purchase order.

This section of the Prospectus explains the basics of doing business with the State Street Funds. Carefully read each topic. The policies set forth below regarding the purchase, redemption and exchange of State Street Fund shares are in addition to the “Purchase and Sale of Fund Shares” section contained in the “Fund Summary” portion of this Prospectus. The State Street Funds reserve the right to change the following policies, without notice to shareholders; except that any modification or termination of the exchange privileges described in this Prospectus will be preceded by 60 days' advance notice to shareholders. Please call or check online for current information. Requests for transactions in the State Street Funds will be processed when they are received in “good order.” “Good order” means that the request is in an accurate and complete form, and all applicable documents have been received in such accurate and complete form (including typically, a signed application and medallion-guaranteed documents), and, for a purchase request, the check or wired funds have cleared.

Purchasing Shares

The Fund offers one class of shares through this Prospectus: Class K, available to you subject to the eligibility requirements set forth below. The following information provides additional details about Class K shares, including information about share class eligibility and initial and deferred sales charges. In the case of shareholders purchasing shares through a Financial Intermediary, a minimum purchase amount may be applied at the level of the Financial Intermediary.

Class K

Class K shares are not subject to any sales charge. Only certain investors are eligible to buy Class K shares. Your Financial Intermediary can help you determine whether you are eligible to purchase Class K shares.

Class K shares are available to the following categories of investors:

1.	Banks, broker-dealers and other financial institutions (including registered investment advisers and financial planners) purchasing Fund Shares on behalf of their clients in:

•	Discretionary and non-discretionary advisory programs;
•	Fund "supermarkets";
•	Asset allocation programs;
•	Other programs in which the client pays an asset-based fee for advice or for executing transactions in Fund Shares or for otherwise participating in the program; or
•	Certain other investment programs that do not charge an asset-based fee;

2.	Qualified recordkeepers with an applicable agreement maintained with SSGA FD;
3.	Endowments and foundations, and defined contribution, defined benefit, and other employer-sponsored employee benefit plans, whether or not qualified under the Internal Revenue Code (the “Code”);

Table of Contents

4.	Certain other registered open-end investment companies whose shares are distributed by SSGA FD;
5.	Current or retired Directors or Trustees of the State Street Funds, officers and employees of SSGA, and any of its subsidiaries, such persons' spouses, and children under the age of 21, and trust accounts for which any of such person is a beneficiary;
6.	Qualified state tuition plans described in Section 529 of the Code and donor-advised charitable gift funds (subject to all applicable terms and conditions);
7.	Health Savings Accounts under Section 223 of the Code if such accounts are maintained by the Fund at an omnibus level;
8.	Collective investment trusts.

There is no minimum investment for Class K shares.

How to Initiate a Purchase Request

Investing in the State Street Funds Through a Financial Intermediary

If you currently do not have an account with State Street Funds, you may establish a new account and purchase shares through a Financial Intermediary, such as a bank, broker, or investment adviser. Please consult your Financial Intermediary to determine which, if any, shares are available through that firm and to learn about other rules that may apply. You may also submit a New Account Application. To open certain types of accounts, such as IRAs, you will be required to submit an account-specific application. If you intend to add certain investor services offered by the State Street Funds, such as Automatic Investment and Withdrawals Plans, you also will be required to submit a Service Option Form. See Service Options. If you are opening an account through a Financial Intermediary, such as a bank or broker, the Financial Intermediary should have the documents that you will need.

Account Applications and Other Documents. You may find many of the forms necessary to open an account online or by calling or writing to the State Street Funds. See Contacting the State Street Funds.

Opening Accounts and Purchasing By Telephone. You may call the State Street Funds to request that the account-opening forms be sent to you or for assistance in completing the necessary paperwork. Once an account has been established, you may also call the State Street Funds to request a purchase of shares. See Contacting the State Street Funds.

Opening Accounts and Purchasing By Mail. You may send the State Street Funds your account registration form and check to open a new account. To add to an existing account, you may send your check with a written request. You also may send a written request to the State Street Funds to make an exchange. For the State Street Funds' addresses, see Contacting the State Street Funds.

Please be sure to check Exchanging Shares and Frequent-Trading Limits below.

How to Pay for a Purchase

By Wire. Please call the State Street Funds for instructions and policies on purchasing shares by wire. See Contacting the State Street Funds. All wires should be in U.S. dollars and immediately available funds.

By Check. You may send a check to make initial or additional purchases to your fund account. Make your check payable to “State Street Funds” and include the appropriate fund name and account number (e.g., “State Street Diversified Income Fund—a/c #xxx”) in the memo section of the check.

By Exchange. You may purchase shares of a State Street Fund, provided the Fund's minimum investment is met, using the proceeds from the simultaneous redemption of shares of another State Street Fund of the same class. You may initiate an exchange by telephone, or by mail. See Exchanging Shares below.

In-Kind Purchase of State Street Fund Shares. The State Street Funds, in their sole discretion, may permit you to purchase shares of a State Street Fund (“State Street Fund Shares”) through the exchange of other securities that you own. The market value of any securities exchanged, plus any cash, must be at least $25 million. Please consult your tax adviser regarding in-kind transactions. Please contact the State Street Funds for more information, including additional restrictions. See Contacting the State Street Funds.

Table of Contents

Trade Dates-Purchases

The trade date for any purchase request received in good order will depend on the day and time the State Street Funds receive your request, the manner in which you are paying, and the type of fund you are purchasing. Each State Street Fund's NAV is calculated only on business days, that is, those days that the NYSE is open for regular trading. Purchase orders are processed at the NAV next determined after the Fund accepts a purchase order.

For Purchases by Check, Exchange or Wire into all Funds: If the purchase request is received in good order by the State Street Funds on a business day before the close of regular trading on the NYSE (ordinarily 4 p.m., Eastern time), the trade date will be the same day. If the purchase request is received in good order on a business day after the close of regular trading on the NYSE, or on a non-business day, the trade date will be the next business day.

If your purchase request is not in good order, it may be rejected.

For further information about purchase transactions, consult our website at www.ssga.com or see Contacting the State Street Funds.

Other Purchase Policies You Should Know

Check Purchases. All checks used to purchase State Street Fund Shares must be drawn on a U.S. bank and in U.S. dollars. The State Street Funds will not accept any third-party check used for an initial purchase of Fund Shares, or any check drawn on a credit card account for any purpose.

New Accounts. We are required by law to obtain from you certain personal information that we will use to verify your identity. If you do not provide the information, we may not be able to open your account. If we are unable to verify your identity, the State Street Funds reserve the right, without notice, to close your account or take such other steps as we deem reasonable.

Refused or Rejected Purchase Requests. The State Street Funds reserve the right to stop selling Fund Shares or to reject any purchase request at any time and without notice, including purchases requested by exchange from another State Street Fund. This right also includes the right to reject any purchase request because of a history of frequent trading by the investor or because the purchase may negatively affect the Fund's operation or performance.

Purchases Through Pension Plans. If you are purchasing State Street Fund Shares through a pension or other participation plan, you should contact your plan administrator for further information on purchases.

Redeeming Shares

By Telephone. You may call the State Street Funds to request a redemption of shares. See Contacting the State Street Funds.

By Mail. You may send a written request to the State Street Funds to redeem from the Fund account or to make an exchange. See Contacting the State Street Funds.

If you wish to redeem Fund Shares through a Financial Intermediary, please contact that Financial Intermediary directly. Your Financial Intermediary may have different or additional requirements for the processing of redemption orders, or may be closed at times when the Fund is open. Financial Intermediaries may contact DST Asset Manager Solutions, Inc. at (877) 332-6207 or via email at nsccresearch@dstsystems.com with questions.

Please be sure to check Exchanging Shares and Frequent-Trading Limits below.

Trade Date-Redemptions

The trade date for any redemption request received in good order will depend on the day and time the State Street Funds receive your request in good order and the manner in which you are redeeming.

Your redemption will be executed using the NAV as calculated on the trade date. NAVs are calculated only on days that the NYSE is open for regular trading (a business day). If the redemption request is received in good order by the State Street Funds on a business day before the close of regular trading on the NYSE (ordinarily 4 p.m., Eastern time), the request will be processed the same day using that day's NAV. If the redemption request is received in good order on a business day after the close of regular trading on the NYSE, or on a non-business day, the request will be processed the next business day.

Table of Contents

How to Receive Redemption Proceeds

Regardless of the method the Fund uses to make a redemption payment, the Fund typically expects to pay out redemption proceeds on the next business day after a redemption request is received in good order. If you purchased State Street Fund Shares by check or an automatic investment program and you elect to redeem shares within 15 days of the purchase, you may experience delays in receiving redemption proceeds. In this case, the State Street Funds generally will postpone sending redemption proceeds until it can verify that the check or automatic investment program investment has been collected, but in no event will this delay exceed 15 days. There will be no such delay for redemptions following purchases paid by federal funds wire or by bank cashier's check, certified check or treasurer's check. The State Street Funds reserve the right to pay for redeemed shares within seven days after receiving a redemption order if, in the judgment of the Adviser, an earlier payment could adversely affect the Fund. The State Street Funds reserve the right to suspend the right of shareholder redemption or postpone the date of payment for more than seven days to the extent permitted by the 1940 Act.

The transfer agent may temporarily delay for more than seven days the disbursement of redemption proceeds from the Fund account of a “Specified Adult” (as defined in Financial Industry Regulatory Authority, Inc. (“FINRA”) Rule 2165) based on a reasonable belief that financial exploitation of the Specified Adult has occurred, is occurring, has been attempted, or will be attempted, subject to certain conditions.

Under normal circumstances, the Fund expects to meet redemption requests by using cash or cash equivalents in its portfolio and/or selling portfolio assets to generate cash. The Fund also may pay redemption proceeds using cash obtained through borrowing arrangements (including under the Fund's line of credit, which is shared across all registered funds advised by SSGA FM (other than money market funds)) that may be available from time to time.

The right of any investor to receive payment with respect to any redemption may be suspended or the payment of the redemption proceeds postponed beyond 7 days in accordance with Section 22(e) of the 1940 Act and the rules thereunder, including during any period in which the NYSE is closed (other than weekends or holidays) or trading on the NYSE is restricted or if an emergency exists as a result of which disposal by the Fund of securities owned by it is not reasonably practicable or it is not reasonably practicable for the Fund fairly to determine the value of its net assets. In addition, the SEC may by order permit suspension of redemptions for the protection of shareholders of the Fund.

The Fund may pay all or a portion of your redemption proceeds by giving you securities (for example, if the Fund reasonably believes that a cash redemption may have a substantial impact on the Fund and its remaining shareholders). You may pay transaction costs (including through the realization of taxable gain) to dispose of the securities, and you may receive less for them than the price at which they were valued for purposes of the redemption. In addition, you will be subject to the market risks associated with such securities until such time as you choose to dispose of the security.

During periods of deteriorating or stressed market conditions, when an increased portion of the Fund's portfolio may be comprised of less liquid investments, or during extraordinary or emergency circumstances, the Fund may be more likely to pay redemption proceeds with cash obtained through short-term borrowing arrangements (if available) or by giving you securities.

By Electronic Bank Transfer. You may have the proceeds of the fund redemption sent directly to a designated bank account. To establish the electronic bank transfer option on an account, you must designate a bank account by completing a special form or filling out the appropriate section of your account registration form. After the option is set up on your account, you can redeem shares by electronic bank transfer on a regular schedule (Automatic Withdrawal Plan) or from time to time. Your redemption request can be initiated by telephone, or by mail.

By Wire. When redeeming shares of a State Street Fund, you may instruct the State Street Funds to wire your redemption proceeds ($1,000 minimum) to a previously designated bank account. Shares will be redeemed from the account on the day that the redemption instructions are received in good order. The wire redemption option is not automatic; you must designate a bank account by completing a special form or filling out the appropriate section of your account registration form. The State Street Funds typically do not charge you a fee for wiring redemption proceeds, although it reserves the right to do so. Your bank may charge a fee for receiving a wire. You are encouraged to check with your bank before initiating any transaction.

By Exchange. You may have the proceeds of a State Street Fund redemption invested directly into shares of another State Street Fund of the same class. You may initiate an exchange by telephone, or by mail.

Table of Contents

By Check. You may have the proceeds of a State Street Funds redemption paid by check and sent to the address shown on the State Street Funds registration record, provided that the address on the registration record has not changed within thirty (30) days of the redemption request. The State Street Funds will mail you a redemption check, generally payable to all registered account owners.

Other Redemption Policies that You Should Know

Address Changes. If your address of record has been changed within thirty (30) days of the redemption request, the request must be in writing and bear a medallion guarantee.

Significant/Unusual Economic or Market Activity. During periods of significant or unusual economic or market activity, you may encounter delays attempting to give instructions by phone.

Minimum Account Size. If, due to your redemptions or exchanges, your account balance for the Fund falls below a minimum amount set by the Fund (presently, the minimum initial investment of your selected share class), the Fund may choose to redeem the shares in the account and mail you the proceeds. You will receive 60 days' notice that your account will be closed unless an investment is made to increase the account balance to the required minimum. Failure to bring your account balance to the required minimum within the prescribed period may result in the Fund closing your account at the NAV next determined on the day the account is closed, and mailing the proceeds to you at the address shown on the Fund's records.

Exchanging Shares

An exchange occurs when you use the proceeds from the redemption of shares of one State Street Fund to simultaneously purchase shares of a different State Street Fund. Exchanges may be made within the same class (i.e. Class K shares for Class K shares). Class N shares are also exchangeable for other share classes of State Street Funds and would be subject to the conditions for investing in the other class of shares described in the applicable prospectus. The account holding the original shares must be registered in the same name as the account holding the new shares received in the exchange. You may make exchange requests by telephone, or by mail. See Purchasing Shares and Redeeming Shares above.

Exchanges are subject to the terms applicable to the purchases of the Fund into which you are exchanging. Exchange privileges may not be available for all State Street Funds and may be suspended or rejected. Exchanging shares of a State Street Fund for shares of another fund is a taxable event and may result in capital gain or loss. See Tax Considerations below.

If the NYSE is open for regular trading (generally until 4 p.m. Eastern time, on a business day) at the time an exchange request is received in good order, the trade date generally will be the same day. Please note that the State Street Funds reserve the right to revise or terminate the exchange privilege, limit the amount of any exchange, or reject an exchange, at any time, for any reason; provided, that shareholders will be provided 60 days' advance notice of any modification or termination of the exchange privilege.

Frequent-Trading Limits

Frequent, short-term trading, abusive trading practices and market timing (together, “Excessive Trading”), often in response to short-term fluctuations in the market, are not knowingly permitted by the State Street Funds. The State Street Funds do not accommodate frequent purchases and redemptions of Fund Shares by Fund shareholders. Excessive Trading into and out of a State Street Fund may harm the Fund's performance by disrupting portfolio management strategies and by increasing expenses. These expenses are borne by all Fund shareholders, including long-term investors who do not generate such costs.

Excessive Trading activity is generally evaluated based on roundtrip transactions in an account. A “roundtrip” transaction is defined generally as a purchase or exchange into a Fund followed, or preceded, by a redemption or exchange out of the same Fund within 30 days. A State Street Fund may, in its discretion, determine to apply a time period other than 30 days in connection with identifying roundtrip transactions. Shareholders with one or more roundtrip transactions may, in the discretion of a State Street Fund, be blocked from making additional purchases or exchanges in any State Street Fund for a period of time. A State Street Fund has discretion to determine that action is not necessary if it determines that a pattern of trading is not abusive or harmful to the affected Fund in a material way. Fund size and/or transaction size may be considered in evaluating any roundtrip transaction.

Table of Contents

The Board of Trustees of the State Street Funds has adopted a “Market Timing/Excessive Trading Policy” (the “Policy”) to discourage Excessive Trading. Under the Policy, the State Street Funds reserve the right to reject any exchanges or purchase orders by any shareholder engaging in Excessive Trading activities.

As a means to protect each State Street Fund and its shareholders from Excessive Trading:

•	The State Street Funds' transfer agent compiles, monitors and reports account-level information on omnibus and underlying shareholder/participant activity. Depending on the account type, monitoring will be performed on a daily, monthly, quarterly and/or annual basis;
•	The State Street Funds' distributor has obtained information from each Financial Intermediary holding shares in an omnibus account with the State Street Funds regarding whether the Financial Intermediary has adopted and maintains procedures that are reasonably designed to protect the Fund against harmful short-term trading; and
•	With respect to State Street Funds that invest in securities that trade on foreign markets, pursuant to the State Street Funds' fair valuation procedures, pricing adjustments may be made based on information received from a third-party, multi-factor fair valuation pricing service.

The State Street Funds' distributor has detailed procedures that document the transparency oversight and monitoring processes performed by the State Street Funds' transfer agent.

While the State Street Funds attempt to discourage Excessive Trading, there can be no guarantee that it will be able to identify investors who are engaging in Excessive Trading or limit their trading practices. Additionally, frequent trades of small amounts may not be detected. The State Street Funds recognize that it may not always be able to detect or prevent Excessive Trading or other activity that may disadvantage the Fund or its shareholders.

A State Street Fund shareholder's right to purchase shares through an automatic investment plan or redeem shares in full (or in part through a systematic withdrawal plan) are unaffected by Excessive Trading restrictions.

Service Options

Dividend and Capital Gain Distribution Option

You may set up your State Street Fund account to reinvest any dividend or capital gains distribution that you receive as a Fund shareholder into the same or a different State Street Fund, or have any dividend or capital gain distribution paid by check, by wire or by check to a special payee. No interest will accrue on the amounts represented by the uncashed distribution checks. If you have elected to receive distributions by check, and the postal or other delivery service is unable to deliver the checks because of an incorrect mailing address, or if a distribution check remains uncashed for six months, the uncashed distribution and all future distributions will be reinvested at the then-current NAV of the Fund.

Please refer to Dividends, Distributions and Tax Considerations below for additional information.

Automatic Withdrawal Plan

If your account balance is over $10,000, you may request periodic (monthly, quarterly, semi-annually, or annually) automatic cash withdrawals of $100 or more which can be mailed to you or any person you designate, or sent through ACH to your bank (at your selection). Proceeds from such withdrawals will be transmitted to the bank account you designate two business days after the trade is placed or executed automatically. No interest will accrue on the amounts represented by the uncashed redemption check(s). Ask your financial adviser or Financial Intermediary for details.

Telephone Redemptions and Exchanges

You may set up your State Street Fund account so that if you request over the telephone to redeem State Street Fund Shares, the redemption proceeds will automatically be wired to a designated bank account. You also may set up your account to permit the State Street Funds to act on your telephonic instructions to exchange State Street Funds shares or to establish a systematic exchange plan. You may choose the date, the frequency (monthly, quarterly or annually) of systematic exchanges of your shares in one State Street Fund to another State Street Fund of the same share class.

Table of Contents

Automatic Investment Plan

Once the initial investment has been accepted, you may make subsequent investments of $100 or more monthly, quarterly or annually by direct deposit by debiting your bank checking or savings account. Once this option has been established, you may call the State Street Funds to make additional automatic purchases, to change the amount of the existing automatic purchase, or to stop it. The State Street Fund reserves the right to cancel your automatic investment plan if any correspondence sent by the Fund is returned by the postal or other delivery service as “undeliverable.”

Additional Shareholder Information

Account Transfers

To effect a change in account registration (for example, to add a new joint owner), a shareholder of a State Street Fund may request to open a new account in the same State Street Fund (referred to as a “transfer”). To effect a transfer, the State Street Funds require a completed and signed new account application, including all necessary additional documents required by the form, and a letter of instruction. The letter of instruction must include the name of the State Street Fund and the original account number, and must be signed by all registered owners of the original account and include a medallion guarantee.

Responsibility for Fraud

The State Street Funds will not be responsible for any account losses because of fraud if we reasonably believe that the person transacting business on an account is authorized to do so. Please take precautions to protect yourself from fraud. Keep your account information private, and immediately review any account statements that we provide to you. It is important that you contact the State Street Funds immediately about any transactions or changes to your account that you believe to be unauthorized.

Right to Change Policies

In addition to the rights expressly stated elsewhere in this Prospectus, the State Street Funds reserve the right, in the future, to:

1.	Alter, add, or discontinue any conditions of purchase (including eligibility requirements), redemption, exchange, service, or privilege at any time;
2.	Accept initial purchases by telephone;
3.	Freeze any account and/or suspend account services if the State Street Funds has received reasonable notice of a dispute regarding the assets in an account, including notice of a dispute between the registered or beneficial account owners, or if we reasonably believe a fraudulent transaction may occur or has occurred;
4.	Temporarily freeze any account and/or suspend account services upon initial notification to the State Street Funds of the death of the shareholder until the State Street Funds receive required documentation in good order;
5.	Alter, impose, discontinue, or waive any redemption fee, account service fee, or other fees charged to a group of shareholders; and
6.	Redeem an account or suspend account privileges, without the owner's permission to do so, in cases of threatening conduct or activity the State Street Funds believe to be suspicious, fraudulent, or illegal.

Changes may affect any or all investors. These actions will be taken when, at the sole discretion of the SSGA FM management, we reasonably believe they are deemed to be in the best interest of the State Street Fund.

Unclaimed Property

Many states have unclaimed property rules that provide for transfer to the state (also known as “escheatment”) of unclaimed property under various circumstances. These circumstances include inactivity (e.g., no owner-initiated contact for a certain period), returned mail (e.g., when mail sent to a shareholder is returned by the post office as undeliverable), or a combination of both inactivity and returned mail. If the Fund's transfer agent identifies property as unclaimed, it will attempt to contact the shareholder, but if that attempt is unsuccessful, the account may be considered abandoned and escheated to the state after the passage of a certain period of time (as required by applicable state law).

If you are a resident of the state of Texas, you may designate a representative to receive escheatment notifications by completing and submitting a designation form, which you can find on the website of the Texas Comptroller. Designating such a representative may be beneficial, since Texas law provides that the escheatment period will cease if the representative, after receiving an escheatment notification regarding your account, communicates knowledge of your location and confirms that you have not abandoned your account. You can mail a completed designation form to the Fund (if you hold shares directly with the Fund) or to your financial intermediary (if you do not hold shares directly with the Fund).

Table of Contents

Dividends, Distributions and Tax Considerations

Dividends of investment income and capital gain distributions of the Fund will be declared and paid at least annually. Any income and capital gains that have not been distributed by December of each calendar year are generally distributed at such time. When the Fund distributes income or capital gains, the NAV per share is reduced by the amount of the distribution.

Distribution Options. You can choose from four different distribution options as indicated on the application:

•	Reinvestment Option—Dividends and capital gain distributions will be automatically reinvested in additional shares of the Fund. If you do not indicate a choice on the application, this option will be automatically assigned.
•	Income-Earned Option—Capital gain distributions will be automatically reinvested, but a check, direct deposit or wire will be sent for each dividend distribution.
•	Cash Option—A check, wire or direct deposit will be sent for each dividend and capital gain distribution.
•	Direct Dividends Option—Dividends and capital gain distributions will be automatically invested in another identically registered State Street Fund of the same share class.

If you have elected to receive distributions by check, and the postal or other delivery service is unable to deliver the checks because of an incorrect mailing address, or if a distribution check remains uncashed for six months, the uncashed distribution and all future distributions will be reinvested at the then-current net asset value of the Fund.

Dividend Policy Upon Purchase. A shareholder will receive a dividend or capital gain distribution only if the shareholder purchased Fund Shares by the close of the record date of such dividend or capital gain distribution.

Delivery of Documents to Accounts Sharing an Address

To reduce expenses, we may mail only one copy of the Fund's Prospectus and the annual and semi-annual report to those addresses shared by two or more accounts. If you wish to receive individual copies of these documents, please call us at (800) 647-7327, or contact your financial institution. We will begin sending you individual copies thirty (30) days after receiving your request.

Tax Considerations

The following discussion is a summary of some important U.S. federal income tax considerations generally applicable to an investment in the Fund. Your investment in the Fund may have other tax implications. Please consult your tax advisor about federal, state, local, foreign or other tax laws applicable to you. Investors, including non-U.S. investors, may wish to consult the SAI tax section for additional disclosure.

The Fund intends to elect to be treated as a regulated investment company and intends each year to qualify and to be eligible to be treated as such. A regulated investment company generally is not subject to tax at the corporate level on income and gains that are timely distributed to shareholders. In order to qualify and be eligible for treatment as a regulated investment company, the Fund must, among other things, satisfy diversification, 90% gross income and distribution requirements. The Fund's failure to qualify and be eligible for treatment as a regulated investment company would result in corporate level taxation, and consequently, a reduction in income available for distribution to shareholders.

For U.S. federal income tax purposes, distributions of investment income generally are taxable to you as ordinary income. Taxes on distributions of capital gains generally are determined by how long the Fund owned (or is deemed to have owned) the investments that generated them, rather than how long you have owned your Fund Shares. Distributions of net capital gains (that is, the excess of net long-term capital gains over net short-term capital losses) from the sale of investments that the Fund owned (or is deemed to have owned) for more than one year that are properly reported by the Fund as capital gain dividends generally will be treated as long-term capital gain includible in your net capital gain and taxed to individuals at reduced rates. Distributions of gains from investments that the Fund owned (or is deemed to have owned) for one year or less generally will be taxable to you as ordinary income. Distributions of investment income properly reported by the Fund as derived from “qualified dividend income,” which will not include income from the Fund's portfolio securities on loan, are taxed to individuals at the rates applicable to net capital gain, provided holding period and other requirements are met by both the shareholder and the Fund. Distributions are taxable to you even if they are paid from income or gains earned by the Fund before your investment (and thus were included in the price you paid for

Table of Contents

your shares). Distributions may also be subject to state and local taxes and are taxable whether you receive them in cash or reinvest them in additional shares. Distributions in excess of the Fund's current and accumulated earnings and profits are treated as a return of capital to the extent of your basis in the Fund's shares, and, in general, as capital gain thereafter.

Any gain resulting from the redemption or other taxable disposition of Fund Shares generally will also be taxable to you as either short-term or long-term capital gain, depending upon how long you held such Fund Shares.

An additional 3.8% Medicare contribution tax is imposed on the “net investment income” of individuals, estates and trusts to the extent their income exceeds certain threshold amounts. Net investment income generally includes for this purpose dividends paid by the Fund, including any capital gain dividends, and net gains recognized on the redemption of Fund Shares.

The Fund's income from or proceeds of dispositions of its investments in non-U.S. assets may be subject to non-U.S. withholding or other taxes, which will reduce the yield on those investments. In certain instances, the Fund may be entitled to elect to pass through to its shareholders a credit (or deduction, for a shareholder that itemizes deductions and so chooses) for foreign taxes (if any) borne with respect to foreign securities income earned by the Fund. If the Fund so elects, shareholders will include in gross income from foreign sources their pro rata shares of such taxes, if any, treated as paid by the Fund. There can be no assurance that the Fund will make such election, even if it is eligible to do so. If the Fund does not qualify for or does not make such election, shareholders will not be entitled separately to claim a credit or deduction with respect to foreign taxes incurred by the Fund; in that case the foreign tax will nonetheless reduce the Fund's taxable income. Shareholders that are not subject to U.S. federal income tax, and those who invest in the Fund through tax-advantaged accounts (including those who invest through IRAs or other tax-advantaged retirement plans), generally will receive no benefit from any tax credit or deduction passed through by the Fund.

Certain of the Fund's investment practices, including derivative transactions and investments in debt obligations issued or purchased at a discount, will be subject to special and complex U.S. federal income tax provisions. These special rules may affect the timing, character, and/or amount of the Fund's distributions, and may require the Fund to sell its investments at a time when it is not advantageous to do so.

If you are not a U.S. person, dividends paid by the Fund that the Fund properly reports as capital gain dividends, short-term capital gain dividends, or interest-related dividends, each as further defined in the SAI, are not subject to withholding of U.S. federal income tax, provided that certain requirements are met. The Fund is permitted, but is not required, to report any part of its dividends as are eligible for such treatment. The Fund's dividends other than those the Fund so reports as capital gain dividends, short-term capital gain dividends, or interest-related dividends generally will be subject to U.S. withholding tax at a 30% rate (or lower applicable treaty rate). See the Fund's SAI for further information.

The U.S. Treasury and IRS generally require the Fund to obtain information sufficient to identify the status of each shareholder under sections 1471-1474 of the Code, and the U.S. Treasury and IRS guidance issued thereunder (collectively, the “Foreign Account Tax Compliance Act” or “FATCA”) or under an applicable intergovernmental agreement between the United States and a foreign government. Please see the SAI for more information on FATCA reporting requirements.

Cost Basis Reporting. U.S. Treasury regulations mandate cost basis reporting to shareholders and the IRS for redemptions of Fund Shares acquired on or after January 1, 2012 (“Post Effective Date Shares”). If you acquire and hold shares directly through the Fund and not through a Financial Intermediary, DST Asset Manager Solutions, Inc. will use a default average cost basis methodology for tracking and reporting your cost basis on Post Effective Date Shares, unless you request, in writing, another cost basis reporting methodology.

Financial Intermediary Arrangements

Payments to Financial Intermediaries

Financial Intermediaries are firms that sell shares of mutual funds, including the Fund, and/or provide certain administrative and account maintenance services to mutual fund investors. Financial Intermediaries may include, among others, brokers, financial planners or advisers, banks, retirement plan recordkeepers and insurance companies.

Table of Contents

In some cases, a Financial Intermediary may hold its clients' Fund Shares in nominee or street name and may utilize omnibus accounts. Shareholder services provided by a Financial Intermediary may (though they will not necessarily) include, among other things: establishing and maintaining shareholder account registrations; receiving and processing purchase and redemption orders, including aggregated orders and delivering orders to the Fund's transfer agent; processing and mailing trade confirmations, periodic statements, prospectuses, annual reports, semiannual reports, shareholder notices, and other SEC-required communications; capturing and processing tax data; issuing and mailing dividend checks to shareholders who have selected cash distributions; preparing record date shareholder lists for proxy solicitations; and collecting and posting distributions to shareholder accounts.

The Financial Intermediary is often compensated by SSGA FD or its affiliates for the services it performs and in such cases is typically paid continually over time, during the period when the Financial Intermediary's clients hold investments in the Fund. The amount of continuing compensation paid by SSGA FD or its affiliates to different Financial Intermediaries for distribution and/or shareholder services varies. Any compensation is typically a percentage of the value of the Financial Intermediary's clients' investments in the Fund or a per account fee. The variation in compensation may, but will not necessarily, reflect enhanced or additional services provided by the Financial Intermediary.

SSGA FD and its affiliates (including SSGA FM), at their own expense and out of their own assets, may also provide other compensation to Financial Intermediaries in connection with sales of the Fund's shares or the servicing of shareholders or shareholder accounts. Such compensation may include, but is not limited to, financial assistance to Financial Intermediaries in connection with conferences, sales, or training programs for their employees; seminars for the public; advertising or sales campaigns; or other Financial Intermediary-sponsored special events. In some instances, this compensation may be made available only to certain Financial Intermediaries whose representatives have sold or are expected to sell significant amounts of shares. Dealers may not use sales of the Fund's shares to qualify for this compensation to the extent prohibited by the laws or rules of any state or any self-regulatory agency, such as Financial Industry Regulatory Authority, Inc..

If payments to Financial Intermediaries by the distributor or adviser for a particular mutual fund complex exceed payments by other mutual fund complexes, your financial adviser and the Financial Intermediary employing him or her may have an incentive to recommend that fund complex over others. Please speak with your financial adviser to learn more about the total amounts paid to your financial adviser and his or her firm by SSGA FD and its affiliates and by sponsors of other mutual funds he or she may recommend to you. You should also consult disclosures made by your Financial Intermediary at the time of purchase.

Third-Party Transactions. The State Street Funds have authorized certain Financial Intermediaries to accept purchase, redemption and exchange orders on the State Street Funds' behalf. Orders received for a State Street Fund by a Financial Intermediary that has been authorized to accept orders on the Fund's behalf (or other Financial Intermediaries designated by the Financial Intermediary) will be deemed accepted by the Fund at the time they are received by the Financial Intermediary and will be priced based on the Fund's next NAV determination as long as the Financial Intermediary transmits the order in good form and in a timely manner to the applicable State Street Fund(s). The State Street Funds will be the sole party to determine if a trade is received in good order. The Financial Intermediary is responsible for transmitting your orders and associated funds in good form and in a timely manner to the applicable State Street Fund(s). The State Street Funds will not be responsible for delays by the Financial Intermediary in transmitting your orders, including timely transfer of payment, to the Fund.

If you are purchasing, selling, exchanging or holding State Street Fund shares through a program of services offered by a Financial Intermediary, you may be required by the Financial Intermediary to pay additional fees. You should contact the Financial Intermediary for information concerning what additional fees, if any, may be charged.

Table of Contents

For more information about the Fund:

The Fund's SAI includes additional information about the Fund and is incorporated by reference into this document. Additional information about the Fund's investments will be available in the Fund's most recent annual and semi-annual reports to shareholders. In the Fund's annual report, you will find a discussion of the market conditions and investment strategies that significantly affected the Fund's performance during its last fiscal year. The Fund's SAI is available, without charge, upon request. The Fund's annual and semi-annual reports will be available, without charge, upon request. Shareholders in the Fund may make inquiries to the Fund to receive such information by calling (800) 997-7327 or the customer service center at the telephone number shown in the accompanying contract prospectus, if applicable. The Fund's Prospectus and SAI are available, and the annual and semi-annual reports to shareholders will be available, free of charge, on the Fund's website at www.ssgafunds.com.

Reports and other information about the Fund are available free of charge on the EDGAR Database on the SEC's Internet site at http://www.sec.gov. Copies of this information also may be obtained, after paying a duplicating fee, by electronic request at the following E-mail address: publicinfo@sec.gov.

SSGA Funds Management, Inc.

ONE IRON STREET

BOSTON, MASSACHUSETTS 02210

[ ]	The State Street Institutional Investment Trust's Investment Company Act File Number is 811-09819.

SUBJECT TO COMPLETION. THE INFORMATION IN THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT COMPLETE AND MAY BE CHANGED. THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT AN OFFER TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.

This Statement of Additional Information (“SAI”) relates to the prospectus dated [ ], 2021 as may be revised and/or supplemented from time to time thereafter for the State Street Diversified Income Fund (the “Prospectus”).

The SAI is not a prospectus and should be read in conjunction with the Prospectus. A copy of the Prospectus can be obtained free of charge by calling (877) 521-4083 or by written request to the Trust at the address listed above.

The Fund had not commenced operations as of the date of this SAI and therefore did not have any financial information to report for the Trust’s most recent fiscal year end.

The Trust was organized as a business trust under the laws of The Commonwealth of Massachusetts on February 16, 2000.

The Trust is an open-end management investment company. The Trust includes the following diversified series:

The Fund’s Prospectus contains information about the investment objective and policies of the Fund. This SAI should only be read in conjunction with the Prospectus of the Fund.

In addition to the principal investment strategies and the principal risks of the Fund described in the Fund’s Prospectus, the Fund may employ other investment practices and may be subject to additional risks, which are described below.

To the extent consistent with its investment objective and restrictions, the Fund may invest in the following instruments and use the following techniques, and is subject to the following additional risks.

The Fund may invest a portion of their assets in bonds. A bond is an interest-bearing security issued by a company, governmental unit or, in some cases, a non-U.S. entity. The issuer of a bond has a contractual obligation to pay interest at a stated rate on specific dates and to repay principal (the bond’s face value) periodically or on a specified maturity date; provided, however, a zero coupon bond pays no interest to its holder during its life. The value of a zero coupon bond to the Fund consists of the difference between such bond’s face value at the time of maturity and the price for which it was acquired, which may be an amount significantly less than its face value (sometimes referred to as a “deep discount” price).

An issuer may have the right to redeem or “call” a bond before maturity, in which case the investor may have to reinvest the proceeds at lower market rates. Most bonds bear interest income at a “coupon” rate that is fixed for the life of the bond. The value of a fixed rate bond usually rises when market interest rates fall, and falls when market interest rates rise. Accordingly, a fixed rate bond’s yield (income as a percent of the bond’s current value) may differ from its coupon rate as its value rises or falls. Fixed rate bonds generally are also subject to inflation risk, which is the risk that the value of the bond or income from the bond will be worth less in the future as inflation decreases the value of money. This could mean that, as inflation increases, the “real” value of the assets of the Fund holding fixed rate bonds can decline, as can the value of the Fund’s distributions. Other types of bonds bear income at an interest rate that is adjusted periodically. Because of their adjustable interest rates, the value of “floating-rate” or “variable-rate” bonds fluctuates much less in response to market interest rate movements than the value of fixed rate bonds. The Fund may treat some of these bonds as having a shorter maturity for purposes of calculating the weighted average maturity of its investment portfolio. Bonds may be senior or subordinated obligations. Senior obligations generally have the first claim on a corporation’s earnings and assets and, in the event of liquidation, are paid before subordinated obligations. Bonds may be unsecured (backed only by the issuer’s general creditworthiness) or secured (also backed by specified collateral). The investment return of corporate bonds reflects interest on the bond and changes in the market value of the bond. The market value of a corporate bond may be affected by the credit rating of the corporation, the corporation’s performance and perceptions of the corporation in the market place. There is a risk that the issuers of the securities may not be able to meet their obligations on interest or principal payments at the time called for by such a security.

The Fund may hold portions of its assets in cash or short-term debt instruments with remaining maturities of 397 days or less pending investment or to meet anticipated redemptions and day-to-day operating expenses. Short-term debt instruments consist of: (i) short-term obligations of the U.S. Government, its agencies, instrumentalities, authorities or political subdivisions; (ii) other short-term debt securities rated at the time of purchase Aa or higher by Moody’s Investors Service, Inc. (“Moody’s”) or AA or higher by S&P or, if unrated, of comparable quality in the opinion of SSGA FM; (iii) commercial paper; (iv) bank obligations, including negotiable certificates of deposit, time deposits and bankers’ acceptances; and (v) repurchase agreements.

Transactions in some types of swaps are required to be centrally cleared by applicable rules and regulations. In a cleared derivatives transaction, the Fund’s counterparty to the transaction is a central derivatives clearing organization, or clearing house, rather than a bank or broker. Because the Fund is not a member of a clearing house, and only members of a clearing house can participate directly in the clearing house, The Fund holds cleared derivatives through accounts at clearing members. In cleared derivatives transactions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through its accounts at clearing members. Clearing members guarantee performance of their clients’ obligations to the clearing house. Centrally cleared derivative arrangements may be less favorable to the Fund than bilateral (non-cleared) arrangements. For example, the Fund may be required to provide greater amounts of margin for cleared derivatives transactions than for bilateral derivatives transactions. Also, in contrast to bilateral derivatives transactions, in some cases following a period of notice to the Fund, a clearing member generally can require termination of existing cleared derivatives transactions at any time or an increase in margin requirements above the margin that the clearing member required at the beginning of a transaction. Clearing houses also have broad rights to increase margin requirements for existing transactions or to terminate transactions at any time. The Fund is subject to risk if it enters into a derivatives transaction that is required to be cleared (or which the Adviser expects to be cleared), and no clearing member is willing or able to clear the transaction on the Fund’s behalf. In that case, the transaction might have to be terminated, and the Fund could lose some or all of the benefit of the transaction, including loss of an increase in the value of the transaction and loss of hedging protection. In addition, the documentation governing the relationship between the Fund and clearing members is drafted by the clearing members and generally is less favorable to the Fund than typical bilateral derivatives documentation. For example, documentation relating to cleared derivatives generally includes a one-way indemnity by the Fund in favor of the clearing member for losses the clearing member incurs as the Fund’s clearing member. Also, such documentation typically does not provide the Fund any remedies if the clearing member defaults or becomes insolvent.

Counterparty risk with respect to derivatives has been and will continue to be affected by new rules and regulations relating to the derivatives market. With respect to a centrally cleared transaction, a party is subject to the credit risk of the clearing house and the clearing member through which it holds its cleared position. Credit risk of market participants with respect to centrally cleared derivatives is concentrated in a few clearing houses, and it is not clear how an insolvency proceeding of a clearing house would be conducted and what impact an insolvency of a clearing house would have on the financial system. A clearing member is obligated by contract and regulation to segregate all funds received from customers with respect to cleared derivatives positions from the clearing member’s proprietary assets. However, all funds and other property received by a clearing member from its customers with respect to cleared derivatives are generally held by the clearing member on a commingled basis in an omnibus account (which can be invested in instruments permitted under the regulations). Therefore, the Fund might not be fully protected in the event of the bankruptcy of the Fund’s clearing member because the Fund would be limited to recovering only a pro rata share of the funds held by the clearing member on behalf of customers, with a claim against the clearing member for any deficiency. Also, the clearing member is required to transfer to the clearing house the amount of margin required by the clearing house for cleared derivatives, which amount is generally held in an omnibus account at the clearing house for all customers of the clearing member. Regulations promulgated by the Commodity Futures Trading Commission (the “CFTC”) require that the clearing member notify the clearing house of the initial margin provided by the clearing member to the clearing house that is attributable to each customer. However, if the clearing member does not accurately report the Fund’s initial margin, the Fund is subject to the risk that a clearing house will use the assets attributable to it in the clearing house’s omnibus account to satisfy payment obligations a defaulting customer of the clearing member has to the clearing house. In addition, clearing members generally provide the clearing house the net amount of variation margin required for cleared swaps for all of its customers, rather than individually for each customer. The Fund is therefore subject to the risk that a clearing house will not make variation margin payments owed to the Fund if another customer of the clearing member has suffered a loss and is in default, and the risk that the Fund will be required to provide additional variation margin to the clearing house before the clearing house will move the Fund’s cleared derivatives positions to another clearing member. In addition, if a clearing member does not comply with the applicable regulations or its agreement with the Fund, or in the event of fraud or misappropriation of customer assets by a clearing member, the Fund could have only an unsecured creditor claim in an insolvency of the clearing member with respect to the margin held by the clearing member.

Certain derivatives contracts are required to be executed through swap execution facilities (“SEFs”). A SEF is a trading platform where multiple market participants can execute derivatives by accepting bids and offers made by multiple other participants in the platform. Such requirements may make it more difficult and costly for investment funds, such as the Fund, to enter into highly tailored or customized transactions. Trading swaps on a SEF may offer certain advantages over traditional bilateral over-the-counter trading, such as ease of execution, price transparency, increased liquidity and/or favorable pricing. Execution through a SEF is not, however, without additional costs and risks, as parties are required to comply with SEF and CFTC rules and regulations, including disclosure and recordkeeping obligations, and SEF rights of inspection, among others. SEFs typically charge fees, and if the Fund executes derivatives on a SEF through a broker intermediary, the intermediary may impose fees as well. The Fund also may be required to indemnify a SEF, or a broker intermediary who executes swaps on a SEF on the Fund’s behalf, against any losses or costs that may be incurred as a result of the Fund’s transactions on the SEF. In addition, the Fund may be subject to execution risk if it enters into a derivatives transaction that is required to be cleared, and no clearing member is willing to clear the transaction on the Fund’s behalf. In that case, the transaction might have to be terminated, and the Fund could lose some or all of the benefit of any increase in the value of the transaction after the time of the trade.

The U.S. government has enacted and is continuing to implement legislation that provides for new regulation of the derivatives market, including clearing, margin, reporting, and registration requirements. The European Union and some other countries have also adopted and are continuing to implement similar requirements, which will affect the Fund when it enters into a derivatives transaction with a counterparty organized in that country or otherwise subject to that country’s derivatives regulations. Such rules and other new rules and regulations could, among other things, restrict the Fund’s ability to engage in, or increase the cost to the Fund of, derivatives transactions, for example, by making some types of derivatives no longer available to the Fund, increasing margin or capital requirements, or otherwise limiting liquidity or increasing transaction costs. While the rules and regulations and central clearing of some derivatives transactions are designed to reduce systemic risk (i.e., the risk that the interdependence of large derivatives dealers could cause them to suffer liquidity, solvency or other challenges simultaneously), there is no assurance that they will achieve that result, and in the meantime, as noted above, central clearing and related requirements expose the Fund to new kinds of costs and risks.

For example, in the event of a counterparty’s (or its affiliate’s) insolvency, the Fund’s ability to exercise remedies, such as the termination of transactions, netting of obligations and realization on collateral, could be stayed or eliminated under new special resolution regimes adopted in the United States, the European Union and various other jurisdictions. Such regimes provide government authorities with broad authority to intervene when a financial institution is experiencing financial difficulty. In particular, with respect to counterparties who are subject to such proceedings in the European Union, the liabilities of such counterparties to the Fund could be reduced, eliminated, or converted to equity in such counterparties (sometimes referred to as a “bail in”).

The SEC recently finalized new Rule 18f-4 under the 1940 Act providing for the regulation of registered investment companies’ use of derivatives and certain related instruments. Compliance with Rule 18f-4 to invest in derivatives and certain related instruments will not be required until approximately the middle of 2022. The new rule, among other things, limits derivatives exposure through one of two value-at-risk tests and eliminates the asset segregation framework for covering derivatives and certain financial instruments arising from the SEC’s Release 10666 and ensuing staff guidance. The rule also requires funds to adopt and implement a derivatives risk management program (including the appointment of a derivatives risk manager and the implementation of certain testing requirements) and subjects funds to certain reporting requirements in respect of derivatives. Limited derivatives users (as determined by Rule 18f-4) are not, however, subject to the full requirements under the rule. As the Fund transitions into reliance on Rule 18f-4, the Fund’s approach to asset segregation and coverage requirements described in this SAI may be impacted.

Additionally, U.S. regulators, the EU and certain other jurisdictions have adopted minimum margin and capital requirements for uncleared derivatives transactions. It is expected that these regulations will have a material impact on the Fund’s use of uncleared derivatives. These rules impose minimum margin requirements on derivatives transactions between the Fund and its counterparties and may increase the amount of margin the Fund is required to provide. They impose regulatory requirements on the timing of transferring margin and the types of collateral that parties are permitted to exchange.

These and other regulations are relatively new and evolving, so their potential impact on the Fund and the financial system are not yet known.

General. The Fund may invest in commodities. There are several additional risks associated with transactions in commodity futures contracts, swaps on commodity futures contracts, commodity forward contracts and other commodities instruments. In the commodity instruments markets, producers of the underlying commodity may decide to hedge the price risk of selling the commodity by selling commodity instruments today to lock in the price of the commodity at delivery tomorrow. In order to induce speculators to purchase the other side of the same commodity instrument, the commodity producer generally must sell the commodity instrument at a lower price than the expected future spot price. Conversely, if most hedgers in the commodity instruments market are purchasing commodity instruments to hedge against a rise in prices, then speculators will only sell the other side of the commodity instrument at a higher future price than the expected future spot price of the commodity. The changing nature of the hedgers and speculators in the commodity markets will influence whether futures prices are above or below the expected future spot price, which can have significant implications for the Fund. If the nature of hedgers and speculators in commodity instruments markets has shifted when it is time for the Fund to reinvest the proceeds of a maturing contract in a new commodity instrument, the Fund might reinvest at a higher or lower future price, or choose to pursue other investments. The commodities which underlie commodity instruments may be subject to additional economic and non-economic variables, such as drought, floods, weather, livestock disease, embargoes, tariffs, and international economic, political and regulatory developments. These factors may have a larger impact on commodity prices and commodity-linked instruments than on traditional securities. Certain commodities are also subject to limited pricing flexibility because of supply and demand factors. Others are subject to broad price fluctuations as a result of the volatility of the prices for certain raw materials and the instability of supplies of other materials. These additional variables may create additional investment risks which subject the Fund’s investments to greater volatility than other investments. Also, unlike the financial instruments markets, in the commodity instruments markets there are costs of physical storage associated with purchasing the underlying commodity. The price of the commodity instruments contract will reflect the storage costs of purchasing the physical commodity, including the time value of money invested in the physical commodity. To the extent that the storage costs for an underlying commodity change while the Fund is invested in instruments on that commodity, the value of the commodity instrument may change proportionately.

The Fund’s ability to invest in commodity-linked investments may be limited by the Fund’s intention to qualify as a regulated investment company (“RIC”) under the Internal Revenue Code of 1986, as amended (the “Code”) and could bear on the ability of the Fund to so qualify. See “Taxation of the Fund” below.

Commodity-Linked Investments. The Fund may invest in commodity-linked investments. The Fund may seek to provide exposure to the investment returns of real assets that trade in the commodity markets through commodity-linked derivative securities, such as structured notes, discussed below, which are designed to provide this exposure without direct investment in physical commodities or commodities futures contracts. Real assets are assets such as oil, gas, industrial and precious metals, livestock, and agricultural or meat products, or other items that have tangible properties, as compared to stocks or bonds, which are financial instruments. In choosing investments, the Adviser seeks to provide exposure to various commodities and commodity sectors. The value of commodity-linked derivative securities held by the Fund may be affected by a variety of factors, including, but not limited to, overall market movements and other factors affecting the value of particular industries or commodities, such as weather, disease, embargoes, acts of war or terrorism, or political and regulatory developments.

The prices of commodity-linked derivative securities may move in different directions than investments in traditional equity and debt securities when the value of those traditional securities is declining due to adverse economic conditions. As an example, during periods of rising inflation, debt securities have historically tended to decline in value due to the general increase in prevailing interest rates. Conversely, during those same periods of rising inflation, the prices of certain commodities, such as oil and metals, have historically tended to increase. Of course, there cannot be any guarantee that these investments will perform in that manner in the future, and at certain times the price movements of commodity-linked instruments have been parallel to those of debt and equity

securities. Commodities have historically tended to increase and decrease in value during different parts of the business cycle than financial assets. Nevertheless, at various times, commodities prices may move in tandem with the prices of financial assets and thus may not provide overall portfolio diversification benefits. Under favorable economic conditions, the Fund’s investments may be expected to underperform an investment in traditional securities. Over the long term, the returns on the Fund’s investments are expected to exhibit low or negative correlation with stocks and bonds.

Because commodity-linked investments are available from a relatively small number of issuers, the Fund’s investments will be particularly subject to counterparty risk, which is the risk that the issuer of the commodity-linked derivative (which issuer may also serve as counterparty to a substantial number of the Fund’s commodity-linked and other derivative investments) will not fulfill its contractual obligations.

The Fund’s ability to invest in commodity-linked investments may be limited by the Fund’s intention to qualify as a RIC and could bear on the ability of the Fund to so qualify. See “Taxation of the Fund” below.

The Fund may enter into credit default swaps or total return swaps to gain market exposure, manage liquidity, increase total returns or for hedging purposes. Credit default swaps and total return swaps are typically governed by the standard terms and conditions of an ISDA Master Agreement.

A credit default swap involves a protection buyer and a protection seller. The Fund may be either a protection buyer or seller. The protection buyer in a credit default swap makes periodic premium payments to the protection seller during the swap term in exchange for the protection seller agreeing to make certain defined payments to the protection buyer in the event certain defined credit events occur with respect to a particular security, issuer or basket of securities. A total return swap involves a total return receiver and a total return payor. The Fund may either be a total return receiver or payor. Generally, the total return payor sells to the total return receiver an amount equal to all cash flows and price appreciation on a defined security or asset payable at periodic times during the swap term (i.e., credit risk) in return for a periodic payment from the total return receiver based on a designated interest rate (e.g., LIBOR) and spread plus the amount of any price depreciation on the reference security or asset. The total return payor does not need to own the underlying security or asset to enter into a total return swap. The final payment at the end of the swap term includes final settlement of the current market price of the underlying reference security or asset, and payment by the applicable party for any appreciation or depreciation in value. Usually, collateral must be posted by the total return receiver to secure the periodic interest-based and market price depreciation payments depending on the credit quality of the underlying reference security and creditworthiness of the total return receiver, and the collateral amount is marked-to-market daily equal to the market price of the underlying reference security or asset between periodic payment dates.

In both credit default swaps and total return swaps, the same general risks inherent to derivative transactions are present; however, the use of credit default swaps and total return swaps can involve greater risks than if the Fund had invested in the reference obligation directly since, in addition to general market risks, credit default swaps and total return swaps are subject to counterparty credit risk, leverage risk, hedging risk, correlation risk and liquidity risk. The Fund will enter into credit default swap or a total return swap only with counterparties that the Adviser determines to meet certain standards of creditworthiness. In a credit default swap, a buyer generally also will lose its premium and recover nothing should no credit event occur and the swap is held to its termination date. If a credit event were to occur, the value of any deliverable obligation received by the seller, coupled with the upfront or periodic payments previously received, may be less than the full notional value it pays to the buyer, resulting in a loss of value to the seller. The Fund’s obligations under a credit default swap agreement will be accrued daily (offset against any amounts owing to the Fund).

Swaps are highly specialized instruments that require investment techniques, risk analyses, and tax planning different from those associated with the ownership of stocks, bonds, and other traditional investments. The use of a swap agreement requires an understanding not only of the referenced obligation, reference rate, or index, but also of the swap agreement itself. Because some swap agreements have a leverage component, adverse changes in the value or level of the underlying asset, reference rate, or index can result in a loss substantially greater than the amount invested in the swap itself. Certain swaps have the potential for unlimited loss, regardless of the size of the initial investment.

When effecting such transactions, cash or other liquid assets held by the Fund of a dollar amount sufficient to meet the Fund’s obligations under the swap agreement will be segregated on the Fund’s records at the trade date and maintained until the transaction is settled. Such segregated assets will be marked to market on a daily basis, and if the market value of such assets declines, additional cash or other assets will be segregated so that the market value of the segregated assets will equal the amount of such Fund’s obligations under the swap agreement.

The Fund’s exposure under a credit default swap may be considered leverage and as such be subject to the restrictions on leveraged derivatives.

There are risks involved in dealing with the custodians or brokers who hold the Fund’s investments or settle the Fund’s trades. It is possible that, in the event of the insolvency or bankruptcy of a custodian or broker, the Fund would be delayed or prevented from recovering its assets from the custodian or broker, or its estate, and may have only a general unsecured claim against the custodian or broker for those assets. In recent insolvencies of brokers or other financial institutions, the ability of certain customers to recover their assets from the insolvent’s estate has been delayed, limited, or prevented, often unpredictably, and there is no assurance that any assets held by the Fund with a custodian or broker will be readily recoverable by the Fund. In addition, there may be limited recourse against non-U.S. sub-custodians in those situations in which the Fund invests in markets where custodial and/or settlement systems and regulations are not fully developed, including emerging markets, and the assets of the Fund have been entrusted to such sub-custodians. SSGA FM or an affiliate may serve as the custodian of the Fund.

Eurodollar Certificates of Deposit (“ECDs”), Eurodollar Time Deposits (“ETDs”) and Yankee Certificates of Deposit (“YCDs”)

The Fund may invest in ECDs, ETDs and YCDs. ECDs and ETDs are U.S. dollar denominated certificates of deposit and time deposits, respectively, issued by non-U.S. branches of domestic banks and non-U.S. banks. YCDs are U.S. dollar denominated certificates of deposit issued by U.S. branches of non-U.S. banks.

Different risks than those associated with the obligations of domestic banks may exist for ECDs, ETDs and YCDs because the banks issuing these instruments, or their domestic or non-U.S. branches, are not necessarily subject to the same regulatory requirements that apply to domestic banks, such as loan limitations, examinations and reserve, accounting, auditing, recordkeeping and public reporting requirements. Obligations of non-U.S. issuers also involve risks such as future unfavorable political and economic developments, withholding or other taxes, seizures of non-U.S. deposits, currency controls, interest limitations, and other governmental restrictions that might affect repayment of principal or payment of interest, or the ability to honor a credit commitment.

The Fund may enter into a variety of different foreign currency transactions, including, by way of example, currency forward transactions, spot transactions, futures and forward contracts, swaps, or options. Most of these transactions are entered into “over the counter,” and the Fund assumes the risk that the counterparty may be unable or unwilling to perform its obligations, in addition to the risk of unfavorable or unanticipated changes in the values of the currencies underlying the transactions. Certain types of over-the-counter currency transactions may be uncollateralized, and the Fund may not be able to recover all or any of the assets owed to it under such transactions if its counterparty should default. In some markets or in respect of certain currencies, the Fund may be required, or agree, in SSGA FM’s discretion, to enter into foreign currency transactions via the custodian’s relevant sub-custodian. SSGA FM may be subject to a conflict of interest in agreeing to any such arrangements on behalf of the Fund. Such transactions executed directly with the sub-custodian are executed at a rate determined solely by such sub-custodian. Accordingly, the Fund may not receive the best pricing of such currency transactions. Regulatory changes in a number of jurisdictions may require that certain currency transactions be subject to central clearing, or be subject to new or increased collateral requirements. These changes could increase the costs of currency transactions to the Fund and may make certain transactions unavailable; they may also increase the credit risk of such transactions to the Fund.

The Fund is permitted to invest in foreign securities. Foreign securities include securities of foreign companies and foreign governments (or agencies or subdivisions thereof). If the Fund’s securities are held abroad, the countries in which such securities may be held and the sub-custodian holding them must be approved by the Board of Trustees of the Trust (the “Board of Trustees” or the “Board”) or its delegate under applicable rules adopted by the Securities and Exchange Commission (“SEC”). In buying foreign securities, the Fund may convert U.S. dollars into foreign currency, but only to effect securities transactions on foreign securities exchanges and not to hold such currency as an investment.

The globalization and integration of the world economic system and related financial markets have made it increasingly difficult to define issuers geographically. Accordingly, the Fund intends to construe geographic terms such as “foreign,” “non-U.S.” “European,” “Latin American,” and “Asian,” in the manner that affords to the Fund the greatest flexibility in seeking to achieve its investment objective(s). Specifically, in circumstances where the investment objective and/or strategy is to invest at least some percentage of the Fund’s assets in foreign securities, etc., The Fund will take the view that a security meets this description so long as the issuer of a security is tied economically to the particular country or geographic region indicated by words of the relevant investment objective and/or strategy (the “Relevant Language”). For these purposes the issuer of a security is deemed to have that tie if:

In addition, the Fund intends to treat derivative securities (e.g., call options) by reference to the underlying security. Conversely, if the investment objective and/or strategy of the Fund limits the percentage of assets that may be invested in “foreign securities,” etc. or prohibits such investments altogether, the Fund intends to categorize securities as “foreign,” etc. only if the security possesses all of the attributes described above in clauses (i), (ii) and (iii).

Investments in foreign securities involve special risks and considerations. Foreign companies are not generally subject to uniform accounting, auditing and financial reporting standards, practices and requirements comparable to those applicable to domestic companies and such practices and standards may vary significantly from country to country. There may be less publicly available information about a foreign company than about a domestic company. The Public Company Accounting Oversight Board, which regulates auditors of U.S. public companies, is unable to inspect audit work papers in certain foreign countries. Investors in foreign countries often have limited rights and few practical remedies to pursue shareholder claims, including class actions or fraud claims, and the ability of the U.S. Securities and Exchange Commission, the U.S. Department of Justice and other authorities to bring and enforce actions against foreign issuers or foreign persons is limited. Foreign markets have different clearance and settlement procedures. Delays in settlement could result in temporary periods when assets of the Fund are uninvested. The inability of the Fund to make intended security purchases due to settlement problems could cause it to miss certain investment opportunities. They may also entail certain other risks, such as the possibility of one or more of the following: imposition of dividend or interest withholding or other taxes (in each case, which taxes could potentially be confiscatory), higher brokerage costs, thinner trading markets, currency blockages or transfer restrictions, expropriation, nationalization, military coups or other adverse political or economic developments; less government supervision and regulation of securities exchanges, brokers and listed companies; and the difficulty of enforcing obligations in other countries. Purchases of foreign securities are usually made in foreign currencies and, as a result, the Fund may incur currency conversion costs and may be affected favorably or unfavorably by changes in the value of foreign currencies against the U.S. dollar. Further, it may be more difficult for the Fund’s agents to keep currently informed about corporate actions which may affect the prices of portfolio securities. Communications between the United States and foreign countries may be less reliable than within the United States, thus increasing the risk of delayed settlements of portfolio transactions or loss of certificates for portfolio securities. Certain markets may require payment for securities before delivery. The Fund’s ability and decisions to purchase and sell portfolio securities may be affected by laws or regulations relating to the convertibility of currencies and repatriation of assets.

A number of current significant political, demographic and economic developments may affect investments in foreign securities and in securities of companies with operations overseas. Such developments include dramatic political changes in government and economic policies in several Eastern European countries and the republics composing the former Soviet Union, as well as the unification of the European Economic Community. The course of any one or more of these events and the effect on trade barriers, competition and markets for consumer goods and services are uncertain. Similar considerations are of concern with respect to developing countries. For example, the possibility of revolution and the dependence on foreign economic assistance may be greater in these countries than in developed countries. Management seeks to mitigate the risks associated with these considerations through diversification and active professional management.

The Fund may invest in forward commitments. The Fund may contract to purchase securities for a fixed price at a future date beyond customary settlement time consistent with the Fund’s ability to manage its investment portfolio and meet redemption requests. The Fund may dispose of a commitment prior to settlement if it is appropriate to do so and realize short-term profits or losses upon such sale. When effecting such transactions, cash or other liquid assets (such as liquid high quality debt obligations) held by the Fund of a dollar amount sufficient to make payment for the portfolio securities to be purchased will be segregated on the Fund’s records at the trade date and maintained until the transaction is settled. Such segregated assets will be marked to market on a daily basis, and if the market value of such assets declines, additional cash or assets will be segregated so that the market value of the segregated assets will equal the amount of such Fund’s obligations. Forward commitments involve a risk of loss if the value of the security to be purchased declines prior to the settlement date, or if the other party fails to complete the transaction.

The Fund may enter into futures contracts on securities in which it may invest or on indices comprised of such securities and may purchase and write call and put options on such contracts.

Futures contracts. A financial futures contract is a contract to buy or sell a specified quantity of financial instruments such as U.S. Treasury bills, notes and bonds at a specified future date at a price agreed upon when the contract is made. An index futures contract is a contract to buy or sell specified units of an index at a specified future date at a price agreed upon when the contract is made. The value of a unit is based on the current value of the index. Under such contracts no delivery of the actual securities making up the index takes place. Rather, upon expiration of the contract, settlement is made by exchanging cash in an amount equal to the difference between the contract price and the closing price of the index at expiration, net of variation margin previously paid. Futures contracts are traded in the United States only on commodity exchanges or boards of trade — known as “contract markets” — approved for such trading by the CFTC, and must be executed through a futures commission merchant or brokerage firm which is a member of the relevant contract market.

Although many futures contracts by their terms call for actual delivery or acceptance of commodities or securities, in most cases the contracts are closed out before the settlement date without the making or taking of delivery, but rather by entering into an offsetting contract (a “closing transaction”). Upon entering into a futures contract, the Fund is required to deposit initial margin with the futures broker. The initial margin serves as a “good faith” deposit that the Fund will honor its potential future commitments. Subsequent payments (called “variation margin” or “maintenance margin”) to and from the broker are made on a daily basis as the price of the underlying security or commodity fluctuates, making the long and short positions in the futures contract more or less valuable, a process known as “marking to the market.” If the Fund is unable to enter into a closing transaction, the amount of the Fund’s potential loss may be unlimited. Futures contracts also involve brokerage costs.

The Fund will not commit more than 5% of the market value of its total assets to initial margin deposits on futures and premiums paid for options on futures.

Registration under the Commodity Exchange Act. The Fund is operated by persons who have claimed an exclusion from the definition of the term “commodity pool operator” with respect to the Fund, under the Commodity Exchange Act (the “CEA”), and therefore, are not subject to registration or regulation as a commodity pool operator under the CEA. As a result, the Fund is limited in its ability to trade instruments subject to the CFTC’s jurisdiction, including commodity futures (which include futures on broad-based securities indexes, interest rate futures and currency futures), options on commodity futures, certain swaps or other investments (whether directly or indirectly through investments in other investment vehicles).

Under this exclusion, the Fund must satisfy one of the following two trading limitations whenever it enters into a new commodity trading position: (1) the aggregate initial margin and premiums required to establish the Fund’s positions in CFTC-regulated instruments may not exceed 5% of the liquidation value of the Fund’s portfolio (after accounting for unrealized profits and unrealized losses on any such investments); or (2) the aggregate net notional value of such instruments, determined at the time the most recent position was established, may not exceed 100% of the liquidation value of the Fund’s portfolio (after accounting for unrealized profits and unrealized losses on any such positions). The Fund would not be required to consider its exposure to such instruments if they were held for “bona fide hedging” purposes, as such term is defined in the rules of the CFTC. In addition to meeting one of the foregoing trading limitations, the Fund may not market itself as a commodity pool or otherwise as a vehicle for trading in the markets for CFTC-regulated instruments.

Options on futures contracts. In return for the premium paid, options on futures contracts give the purchaser the right to assume a position in a futures contract at the specified option exercise price at any time during the period of the option. Options on futures are similar to options on securities except that options on futures give the purchaser the right, in return for the premium paid, to assume a position in a futures contract (a long position if the option is a call and a short position if the option is a put) at a specified exercise price at any time during the period of the option. Upon exercise of the option, the delivery of the futures position by the writer of the option to the holder of the option will be accompanied by delivery of the accumulated balance in the writer’s futures margin account which represents the amount by which the market price of the futures contract, at exercise, exceeds (in the case of a call) or is less than (in the case of a put) the exercise price of the option on the futures. If an option is exercised on the last trading day prior to its expiration date, the settlement will be made entirely in cash. Purchasers of options who fail to exercise their options prior to the exercise date suffer a loss of the premium paid.

As with options on securities, the holder or writer of an option may terminate his position by selling or purchasing an offsetting option. There is no guarantee that such closing transactions can be effected.

The Fund will be required to deposit initial margin and maintenance margin with respect to put and call options on futures contracts written by it pursuant to brokers’ requirements similar to those described above in connection with the discussion of futures contracts.

Risks of transactions in futures contracts and related options. Successful use of futures contracts by the Fund is subject to the Adviser’s ability to predict movements in various factors affecting financial markets. Compared to the purchase or sale of futures contracts, the purchase of call or put options on futures contracts involves less potential risk to the Fund because the maximum amount at risk is the premium paid for the options (plus transaction costs). However, there may be circumstances when the purchase of a call or put option on a futures contract would result in a loss to the Fund when the purchase or sale of a futures contract would not, such as when there is no movement in the prices of the hedged investments. The writing of an option on a futures contract involves risks similar to those risks relating to the sale of futures contracts.

The use of options and futures strategies involves the risk of imperfect correlation among movements in the prices of the securities underlying the futures and options purchased and sold by the Fund, of the options and futures contracts themselves, and, in the case of hedging transactions, of the securities which are the subject of a hedge. The successful use of these strategies further depends on the ability of the Adviser to forecast interest rates and market movements correctly.

There is no assurance that higher than anticipated trading activity or other unforeseen events might not, at times, render certain market clearing facilities inadequate, and thereby result in the institution by exchanges of special procedures which may interfere with the timely execution of customer orders.

To reduce or eliminate a position held by the Fund, the Fund may seek to close out such a position. The ability to establish and close out positions will be subject to the development and maintenance of a liquid secondary market. It is not certain that this market will develop or continue to exist for a particular futures contract or option. Reasons for the absence of a liquid secondary market on an exchange include the following: (i) there may be insufficient trading interest in certain contracts or options; (ii) restrictions may be imposed by an exchange on opening transactions or closing transactions or both; (iii) trading halts, suspensions or other restrictions may be imposed with respect to particular classes or series of contracts or options, or underlying securities; (iv) unusual or unforeseen circumstances may interrupt normal operations on an exchange; (v) the facilities of an exchange or a clearing corporation may not at all times be adequate to handle current trading volume; or (vi) one or more exchanges could, for economic or other reasons, decide or be compelled at some future date to discontinue the trading of contracts or options (or a particular class or series of contracts or options), in which event the secondary market on that exchange for such contracts or options (or in the class or series of contracts or options) would cease to exist, although outstanding contracts or options on the exchange that had been issued by a clearing corporation as a result of trades on that exchange would likely continue to be exercisable in accordance with their terms.

U.S. Treasury security futures contracts and options. Some U.S. Treasury security futures contracts require the seller to deliver, or the purchaser to take delivery of, the type of U.S. Treasury security called for in the contract at a specified date and price; others may be settled in cash. Options on U.S. Treasury security futures contracts give the purchaser the right in return for the premium paid to assume a position in a U.S. Treasury security futures contract at the specified option exercise price at any time during the period of the option.

Successful use of U.S. Treasury security futures contracts by the Fund is subject to the Adviser’s ability to predict movements in the direction of interest rates and other factors affecting markets for debt securities. For example, if the Fund has sold U.S. Treasury security futures contracts in order to hedge against the possibility of an increase in interest rates which would adversely affect the values of securities held in its portfolio, and the prices of the Fund’s securities increase instead as a result of a decline in interest rates, the Fund will lose part or all of the benefit of the increased value of its securities which it has hedged because it will have offsetting losses in its futures positions. In addition, in such situations, if the Fund has insufficient cash, it may have to sell securities to meet daily maintenance margin requirements at a time when it may be disadvantageous to do so.

There is also a risk that price movements in U.S. Treasury security futures contracts and related options will not correlate closely with price movements in markets for particular securities. For example, if the Fund has hedged against a decline in the values of tax-exempt securities held by it by selling Treasury security futures and the values of Treasury securities subsequently increase while the values of the Fund’s tax-exempt securities decrease, the Fund would incur losses on both the Treasury security futures contracts written by it and the tax-exempt securities held in its portfolio.

The Government National Mortgage Association (“GNMA” or “Ginnie Mae”) is the principal federal government guarantor of mortgage-related securities. GNMA is a wholly owned U.S. Government corporation within the Department of Housing and Urban Development. It guarantees, with the full faith and credit of the United States, full and timely payment of all monthly principal and interest on its mortgage-related securities. GNMA pass-through securities are considered to have a relatively low risk of default in that (1) the underlying mortgage loan portfolio is comprised entirely of government-backed loans and (2) the timely payment of both principal and interest on the securities is guaranteed by the full faith and credit of the U.S. Government, regardless of whether they have been collected. GNMA pass-through securities are, however, subject to the same interest rate risk as comparable privately issued mortgage-related securities. Therefore, the effective maturity and market value of the Fund’s GNMA securities can be expected to fluctuate in response to changes in interest rate levels.

Residential mortgage loans are also pooled by the Federal Home Loan Mortgage Corporation (“FHLMC” or “Freddie Mac”), a corporate instrumentality of the U.S. Government. The mortgage loans in FHLMC’s portfolio are not government backed; FHLMC, not the U.S. Government, guarantees the timely payment of interest and ultimate collection of principal on FHLMC securities. FHLMC also issues guaranteed mortgage certificates, on which it guarantees semiannual interest payments and a specified minimum annual payment of principal.

The Federal National Mortgage Association (“FNMA” or “Fannie Mae”) is a government-sponsored corporation owned entirely by private stockholders. It is subject to general regulation by the Secretary of Housing and Urban Development. FNMA purchases residential mortgages from a list of approved seller/servicers, which include savings and loan associations, savings banks, commercial banks, credit unions and mortgage bankers. Pass-through securities issued by FNMA are guaranteed as to timely payment of principal and interest only by FNMA, not the U.S. Government.

The Fund may invest a portion of their assets in high yield debt securities (commonly known as “junk bonds”). Investment in high yield securities generally provides greater income and increased opportunity for capital appreciation than investments in higher quality securities, but they also typically entail greater price volatility and credit risk. These high yield securities are regarded as predominantly speculative with respect to the issuer’s continuing ability to meet principal and interest payments. Analysis of the creditworthiness of issuers of debt securities that are high yield may be more complex than for issuers of higher quality debt securities. In addition, high yield securities are often issued by smaller, less creditworthy companies or by highly leveraged (indebted) firms, but can also be issued by governments. Such issuers are generally less able than more financially stable issuers to make scheduled payments of interest and principal. The risks posed by securities issued under such circumstances are substantial.

Investing in high yield debt securities involves risks that are greater than the risks of investing in higher quality debt securities. These risks include: (i) changes in credit status, including weaker overall credit conditions of issuers and risks of default; (ii) industry, market and economic risk; and (iii) greater price variability and credit risks of certain high yield securities such as zero coupon and payment-in-kind securities. While these risks provide the opportunity for maximizing return over time, they may result in greater volatility of the value of the Fund than the fund that invests in higher-rated securities.

Furthermore, the value of high yield securities may be more susceptible to real or perceived adverse economic, company or industry conditions than is the case for higher quality securities. The market values of certain of these lower-rated and unrated debt securities tend to reflect individual issuer developments to a greater extent than do higher-rated securities which react primarily to fluctuations in the general level of interest rates, and tend to be more sensitive to economic conditions than are higher-rated securities. Adverse market, credit or economic conditions could make it difficult at certain times to sell certain high yield securities held by the Fund.

The secondary market on which high yield securities are traded may be less liquid than the market for higher grade securities. Less liquidity in the secondary trading market could adversely affect the price at which the Fund could sell a high yield security, and could adversely affect the daily net asset value (“NAV”) per share of the Fund. When secondary markets for high yield securities are less liquid than the market for higher grade securities, it may be more difficult to value the securities because there is less reliable, objective data available. However, an Index seeks to include primarily high yield securities that the Index provider believes have greater liquidity than the broader high yield securities market as a whole.

The use of credit ratings as a principal method of selecting high yield securities can involve certain risks. For example, credit ratings evaluate the safety of principal and interest payments, not the market value risk of high yield securities. Also, credit rating agencies may fail to change credit ratings in a timely fashion to reflect events since the security was last rated.

The Fund may invest in illiquid securities. The Fund will invest no more than 15% of its net assets in illiquid securities, including repurchase agreements and time deposits of more than seven days’ duration. The absence of a regular trading market for illiquid securities imposes additional risks on investments in these securities. Illiquid securities may be difficult to value and may often be disposed of only after considerable expense and delay.

The SEC has adopted a liquidity risk management rule (the “Liquidity Rule”) that requires the Fund to establish a liquidity risk management program (the “LRMP”). The Trustees, including a majority of the Independent Trustees (defined infra), have designated the Adviser to administer the Fund’s LRMP. Under the LRMP, the Adviser assesses, manages, and periodically reviews the Fund’s liquidity risk. The Liquidity Rule defines “liquidity risk” as the risk that the Fund could not meet requests to redeem shares issued by the Fund without significant dilution of remaining investors’ interests in the Fund. The liquidity of the Fund’s portfolio investments is determined based on relevant market, trading and investment-specific considerations under the LRMP. To the extent that an investment is deemed to be an illiquid investment or a less liquid investment, the Fund can expect to be exposed to greater liquidity risk. The Liquidity Rule’s impact on the Fund, and on the open-end fund industry in general, is not yet fully known, but the rule could affect the Fund’s performance and its ability to achieve its investment objectives. While the liquidity risk management program attempts to assess and manage liquidity risk, there is no guarantee it will be effective in its operations and may not reduce the liquidity risk inherent in the Fund’s investments.

Infrastructure-related companies include companies that primarily own, manage, develop and/or operate infrastructure assets, including transportation, utility, energy and/or telecommunications assets. Infrastructure-related businesses are subject to a variety of factors that may adversely affect their business or operations, including high interest costs in connection with capital construction programs, insurance costs, costs associated with environmental and other regulations, the effects of an economic slowdown, surplus capacity or technological obsolescence, industry competition, labor relations, rate caps or rate changes, uncertainties concerning availability of fuel at reasonable prices, the effects of energy conservation policies, natural disasters, terrorist attacks and other factors. Certain infrastructure-related entities, particularly telecommunications and utilities companies, are subject to extensive regulation by various governmental authorities. The costs of complying with governmental regulations, delays or failures to receive required regulatory approvals or the enactment of new adverse regulatory requirements may adversely affect infrastructure-related companies. Infrastructure-related companies may also be affected by service interruption and/or legal challenges due to environmental, operational or other conditions or events, and the imposition of special tariffs and changes in tax laws, regulatory policies and accounting standards. There is also the risk that corruption may negatively affect publicly-funded infrastructure projects, especially in non-U.S. markets, resulting in work stoppage, delays and cost overruns. Other risks associated with infrastructure-related companies include uncertainties resulting from such companies’ diversification into new domestic and international businesses, as well as agreements by any such companies linking future rate increases to inflation or other factors not directly related to the actual operating profits of the enterprise.

The Fund may invest in corporate notes and bonds that are rated investment-grade by a nationally recognized statistical rating organization (“NRSRO”) or, if unrated, are of comparable quality to the rated securities described above, as determined by the Adviser, in accordance with procedures established by the Board of Trustees. Investment-grade securities include securities rated Baa or higher by Moody’s or BBB- or higher by S&P (and securities of comparable quality); securities rated Baa by Moody’s or BBB by S&P may have speculative characteristics.

The Fund may lend portfolio securities to certain creditworthy borrowers in U.S. and non-U.S. markets in an amount not to exceed 40% of the value of its net assets. The borrowers provide collateral that is marked to market daily in an amount at least equal to the current market value of the securities loaned. The Fund may terminate a loan at any time and obtain the securities loaned. The Fund receives the value of any interest or cash or non-cash distributions paid on the loaned securities. The Fund cannot vote proxies for securities on loan, but may recall loans to vote proxies if a material issue affecting the Fund’s economic interest in the investment is to be voted upon. Efforts to recall such securities promptly may be unsuccessful, especially for foreign securities or thinly traded securities, and may involve expenses to the Fund. Distributions received on loaned securities in lieu of dividend payments (i.e., substitute payments) would not be considered qualified dividend income.

With respect to loans that are collateralized by cash, the borrower typically will be entitled to receive a fee based on the amount of cash collateral. The Fund is compensated by the difference between the amount earned on the reinvestment of cash collateral and the fee paid to the borrower. In the case of collateral other than cash, the Fund is compensated by a fee paid by the borrower equal to a percentage of the market value of the loaned securities. Any cash collateral may be reinvested in certain high quality short-term instruments either directly on behalf of the lending Fund or through one or more joint accounts or funds, which may include those managed by the Adviser. The Fund could lose money due to a decline in the value of collateral provided for loaned securities or any investments made with cash collateral.

The Fund may pay a portion of the interest or fees earned from securities lending to a borrower as described above, and to one or more securities lending agents approved by the Board of Trustees of the Trust (the “Board”) who administer the lending program for the Fund in accordance with guidelines approved by the Board. In such capacity, the lending agent provides the following services to the Fund in connection with the Fund’s securities lending activities: (i) locating borrowers among an approved list of prospective borrowers; (ii) causing the delivery of loaned securities from the Fund to borrowers; (iii) monitoring the value of loaned securities, the value of collateral received, and other lending parameters; (iv) seeking additional collateral, as necessary, from borrowers; (v) receiving and holding collateral from borrowers, and facilitating the investment and reinvestment of all or substantially all cash collateral in an investment vehicle designated by the Fund; (vi) returning collateral to borrowers; (vii) facilitating substitute dividend, interest, and other distribution payments to the Fund from borrowers; (viii) negotiating the terms of each loan of securities, including but not limited to the amount of any loan premium, and monitoring the terms of securities loan agreements with prospective borrowers for consistency with the requirements of the Fund’s Securities Lending Authorization Agreement; (ix) selecting securities, including amounts (percentages), to be loaned; (x) recordkeeping and accounting servicing; and (xi) arranging for return of loaned securities to the Fund in accordance with the terms of the Securities Lending Authorization Agreement. State Street Bank and Trust Company (“State Street”), an affiliate of the Trust, has been approved by the Board to serve as securities lending agent for the Fund and the Trust has entered into an agreement with State Street for such services. Among other matters, the Trust has agreed to indemnify State Street for certain liabilities. State Street has received an order of exemption from the SEC under Sections 17(a), 17(d) and 12(d)(1) under the 1940 Act to serve as the lending agent for affiliated investment companies such as the Trust, to invest the cash collateral received from loan transactions in an affiliated cash collateral fund and to receive a fee based on a share of the revenue generated from such transactions.

Securities lending involves exposure to certain risks, including operational risk (i.e., the risk of losses resulting from problems in the settlement and accounting process especially so in certain international markets such as Taiwan), “gap” risk (i.e., the risk of a mismatch between the return on cash collateral reinvestments and the fees the Fund has agreed to pay a borrower), risk of loss of collateral, credit, legal, counterparty and market risk. If a securities lending counterparty were to default, the Fund would be subject to the risk of a possible delay in receiving collateral (or the proceeds of its liquidation) or in recovering the loaned securities. In the event a borrower does not return the Fund’s securities as agreed, the Fund may experience losses if the proceeds received from liquidating the collateral do not at least equal the value of the loaned security at the time the collateral is liquidated, plus the transaction costs incurred in purchasing replacement securities. Although State Street has agreed to provide the Fund with indemnification in the event of a borrower default, the Fund is still exposed to the risk of losses in the event a borrower does not return the Fund’s securities as agreed. For example, delays in recovery of lent securities may cause the Fund to lose the opportunity to sell the securities at a desirable price with guaranteed delivery provisions.

The Fund is subject to the risk that geopolitical events will disrupt securities markets and adversely affect global economies and markets. War, terrorism, and related geopolitical events have led, and in the future may lead, to increased short-term market volatility and may have adverse long-term effects on U.S. and world economies and markets generally. Likewise, natural and environmental disasters, epidemics or pandemics and systemic market dislocations may be highly disruptive to economies and markets. Those events as well as other changes in non-U.S. and domestic economic and political conditions also could adversely affect individual issuers or related groups of issuers, securities markets, interest rates, credit ratings, inflation, investor sentiment, and other factors affecting the value of the Fund’s investments. Given the increasing interdependence between global economies and markets, conditions in one country, market, or region might adversely impact markets, issuers and/or foreign exchange rates in other countries, including the U.S. Continuing uncertainty as to the status of the Euro and the Economic and Monetary Union of the European (the “EMU”) has created significant volatility in currency and financial markets generally. Any partial or complete dissolution of the EMU, or any continued uncertainty as to its status, could have significant adverse effects on currency and financial markets, and on the values of the Fund’s investments. At a

referendum in June 2016, the United Kingdom (the “U.K.”) voted to leave the European Union (“E.U.”) thereby initiating the British exit from the E.U. (commonly known as “Brexit”). In March 2017, the U.K. formally notified the European Council of the U.K.’s intention to withdraw from the EU pursuant to Article 50 of the Treaty on European Union. This formal notification began a multi-year period of negotiations regarding the terms of the U.K.’s exit from the E.U., which formally occurred on January 31, 2020, when the U.K. entered into an 11-month transition period during which the U.K. remained part of the EU single market and customs union the laws of which govern the economic, trade and security relations between the U.K. and EU. The transition period concluded on December 31, 2020 and the U.K. left the EU single market and customs union under the terms of a new trade agreement. The agreement governs the new relationship between the U.K. and the EU with respect to trading goods and services but critical aspects of the relationship remain unresolved and subject to further negotiation and agreement. There is still considerable uncertainty relating to the potential consequences associated with the exit, including whether the U.K.’s exit will increase the likelihood of other countries also departing the E.U. Brexit may have a significant impact on the U.K., Europe, and global economies, which may result increased volatility and illiquidity, and potentially lower economic growth in markets in the U.K., Europe and globally, which may adversely affect the value of the Fund’s investments.

Securities markets may be susceptible to market manipulation (e.g., the potential manipulation of the London Interbank Offered Rate (LIBOR)) or other fraudulent trade practices, which could disrupt the orderly functioning of these markets or adversely affect the value of investments traded in these markets, including investments of the Fund.

Many financial instruments use or may use a floating rate based on LIBOR, which is the offered rate for short-term Eurodollar deposits between major international banks. On July 27, 2017, the head of the U.K.’s Financial Conduct Authority (“FCA”) announced a desire to phase out the use of LIBOR by the end of 2021. On March 5, 2021, the FCA and LIBOR’s administrator, ICE Benchmark Administration (IBA), announced that most LIBOR settings will no longer be published after the end of 2021 and a majority of U.S. dollar LIBOR settings will no longer be published after June 30, 2023. It is possible that the FCA may compel the IBA to publish a subset of LIBOR settings after these dates on a “synthetic” basis, but any such publications would be considered non-representative of the underlying market.

The elimination of LIBOR may adversely affect the interest rates on, and value of, certain investments for which the value is tied to LIBOR. Such investments may include bank loans, derivatives, floating rate securities, and other assets or liabilities tied to LIBOR. Actions by regulators have resulted in the establishment of alternative reference rates to LIBOR in most major currencies. The U.S. Federal Reserve, based on the recommendations of the New York Federal Reserve’s Alternative Reference Rate Committee (comprised of major derivative market participants and their regulators), has begun publishing a Secured Overnight Funding Rate (SOFR), that is intended to replace U.S. dollar LIBOR. Proposals for alternative reference rates for other currencies have also been announced or have already begun publication. Markets are slowly developing in response to these new rates. Questions around liquidity impacted by these rates, and how to appropriately adjust these rates at the time of transition, remain a concern for the Fund.

The effect of any changes to, or discontinuation of, LIBOR on the Fund will vary depending, among other things, on (1) existing fallback or termination provisions in individual contracts and (2) whether, how, and when industry participants develop and adopt new reference rates and fallbacks for both legacy and new products and instruments. Accordingly, it is difficult to predict the full impact of the transition away from LIBOR on the Fund until new reference rates and fallbacks for both legacy and new products, instruments and contracts are commercially accepted.

Recent political activity in the U.S. has increased the risk that the U.S. could default on some or any of its obligations. While it is impossible to predict the consequences of such an unprecedented event, it is likely that a default by the U.S. would be highly disruptive to the U.S. and global securities markets and could significantly impair the value of the Fund’s investments. Similarly, political events within the U.S. at times have resulted, and may in the future result, in a shutdown of government services, which could negatively affect the U.S. economy, decrease the value of many Fund investments, and increase uncertainty in or impair the operation of the U.S. or other securities markets. To the extent the Fund has focused its investments in the stock market index of a particular region, adverse geopolitical and other events could have a disproportionate impact on the Fund.

An outbreak of a respiratory disease caused by a novel coronavirus first detected in China in December 2019 has spread globally in a short period of time. In an organized attempt to contain and mitigate the effects of the spread of the coronavirus known as COVID-19, governments and businesses world-wide have taken aggressive measures, including closing borders, restricting international and domestic travel, and the imposition of prolonged quarantines of large populations. COVID-19 has resulted in the disruption of and delays in the delivery of healthcare services and processes, the cancellation of organized events and educational institutions, the disruption of production and supply chains, a decline in consumer demand for certain goods and services, and general concern and uncertainty, all of which have contributed to increased volatility in global markets. The effects of COVID-19 will likely affect certain sectors and industries more dramatically than others, which may adversely affect the value of the Fund’s investments in those sectors or industries. COVID-19, and other epidemics and pandemics that may arise in the future, could adversely affect the economies of many nations, the global economy, individual companies and capital markets in ways that cannot be foreseen at the present time. In addition, the impact of infectious diseases in developing or emerging market countries may be greater due to limited health care resources. Political, economic and social stresses caused by COVID-19 also may exacerbate other pre-existing political, social and economic risks in certain countries. The duration of COVID-19 and its effects cannot be determined at this time, but the effects could be present for an extended period of time.

The Fund may enter into “forward roll” transactions with respect to mortgage-related securities issued by GNMA, FNMA or FHLMC. In a forward roll transaction, the Fund will sell a mortgage-related security to a bank or other permitted entity and simultaneously agree to repurchase a similar security from the institution at a later date at an agreed upon price. The mortgage securities that are repurchased will typically bear the same interest rate as those sold, but generally will be collateralized by different pools of mortgages with different prepayment histories than those sold. The Fund that engages in a forward roll transaction forgoes principal and interest paid on the securities sold during the roll period, but is compensated by the difference between the current sales price and the lower forward price for the future purchase. In addition, the Fund earns interest by investing the transaction proceeds during the roll period. A forward roll transaction may create investment leverage. The Fund is subject to the risk that the value of securities to be purchased pursuant to a forward roll transaction will decline over the roll period, and that the Fund’s counterparty may be unwilling or unable to perform its obligations to the Fund. Upon entering into a mortgage-backed security roll, the participating Fund will segregate on its records cash, U.S. Government securities or other high-grade debt securities in an amount sufficient to cover its obligation under the roll.

The Fund may invest in mortgage-related securities. Mortgage-related securities represent an interest in a pool of, or are secured by, mortgage loans. Mortgage-related securities may be issued or guaranteed by (i) U.S. Government agencies or instrumentalities such as GNMA, FNMA and FHLMC or (ii) other issuers, including private companies.

Many mortgage-related securities provide regular payments which consist of interest and, in most cases, principal. In contrast, other forms of debt securities normally provide for periodic payment of interest in fixed amounts with principal payments at maturity or specified call dates. In effect, payments on many mortgage-related securities are a “pass-through” of the payments made by the individual borrowers on their mortgage loans, net of any fees paid to the issuer or guarantor of such securities.

Besides the scheduled repayment of principal, repayments of principal may result from the voluntary prepayment, refinancing or foreclosure of the underlying mortgage loans. If property owners make unscheduled prepayments of their mortgage loans, these prepayments will typically result in early payment of the applicable mortgage-related securities. The occurrence of mortgage prepayments is affected by a variety of factors including the level of interest rates, general economic conditions, the location and age of the mortgage, and other social and demographic conditions. During periods of falling interest rates, the rate of mortgage prepayments tends to increase, thereby tending to decrease the life of mortgage-related securities. During periods of rising interest rates, the rate of mortgage prepayments usually decreases, thereby tending to increase the life of mortgage-related securities.

Because of the possibility of prepayments (and due to scheduled repayments of principal), mortgage-related securities are less effective than other types of securities as a means of “locking in” attractive long-term interest rates. Prepayments would have to be reinvested at lower rates. As a result, these securities may have less potential for capital appreciation during periods of declining interest rates than other securities of comparable maturities, although they may have a similar risk of decline in market value during periods of rising interest rates. Prepayments may also significantly shorten the effective maturities of these securities, especially during periods of declining interest rates. Conversely, during periods of rising interest rates, a reduction in prepayments may increase the effective maturities of these securities, subjecting them to a greater risk of decline in market value in response to rising interest rates than traditional debt securities, and, therefore, potentially increasing the volatility of the Fund.

Collateralized mortgage obligations (“CMOs”) may be issued by a U.S. Government agency or instrumentality or by a private issuer. CMOs are typically structured with classes or series that have different maturities and are generally retired in sequence. Each class of obligations receives periodic interest payments according to its terms. However, monthly principal payments and any prepayments from the collateral pool are generally paid first to the holders of the most senior class. Thereafter, payments of principal are generally allocated to the next most senior class of obligations until that class of obligations has been fully repaid. Any or all classes of obligations of a CMO may be paid off sooner than expected because of an increase in the payoff speed of the pool. Changes in prepayment rates may have significant effects on the values and the volatility of the various classes and series of a CMO. Payment of interest or principal on some classes or series of a CMO may be subject to contingencies or some classes or series may bear some or all of the risk of default on the underlying mortgages.

Stripped mortgage-related securities are usually structured with two classes that receive different portions of the interest and principal distributions on a pool of mortgage loans. The yield to maturity on an interest only or “IO” class of stripped mortgage-related securities is extremely sensitive not only to changes in prevailing interest rates but also to the rate of principal payments (including prepayments) on the underlying assets. A rapid rate of principal prepayments may have a measurable adverse effect on the Fund’s yield to maturity to the extent it invests in IOs. If the assets underlying the IO experience greater than anticipated prepayments of principal, the Fund may fail to recoup fully, or at all, its initial investment in these securities. Conversely, principal only securities or “POs” tend to increase in value if prepayments are greater than anticipated and decline if prepayments are slower than anticipated. The secondary market for stripped mortgage-related securities may be more volatile and less liquid than that for other mortgage-related securities, potentially limiting the Fund’s ability to buy or sell those securities at any particular time.

Municipal securities may bear fixed, floating or variable rates of interest or may be zero coupon securities. Municipal securities are generally of two types: general obligations and revenue obligations. General obligations are backed by the full faith and credit of the issuer. These securities include tax anticipation notes, bond anticipation notes, general obligation bonds and commercial paper. Revenue obligations are backed by the revenues generated from a specific project or facility and include industrial development bonds and private activity bonds. Tax anticipation notes are issued to finance working capital needs of municipalities and are generally issued in anticipation of future tax revenues. Bond anticipation notes are issued in expectation of the issuer obtaining longer-term financing.

The secondary market for municipal obligations also tends to be less well-developed and less liquid than many other securities markets, which may limit a Fund’s ability to sell its municipal obligations at attractive prices, particularly in stressed market conditions. The differences between the price at which an obligation can be purchased and the price at which it can be sold may widen during periods of market distress. Less liquid obligations can become more difficult to value and be subject to erratic price movements

The Fund may purchase and sell put and call options to enhance investment performance and to protect against changes in market prices. There is no assurance that the Fund’s use of put and call options will achieve its desired objective, and the Fund’s use of options may result in losses to the Fund.

Covered call options. The Fund may write (i.e., sell) covered call options to realize a greater current return through the receipt of premiums than it would realize on its securities alone. Such option transactions may also be used as a limited form of hedging against a decline in the price of securities owned by the Fund.

A call option gives the holder the right to purchase, and obligates the writer to sell, a security at the exercise price at any time before the expiration date. A call option is “covered” if the writer, at all times while obligated as a writer, either owns the underlying securities (or comparable securities satisfying the cover requirements of the securities exchanges), or has the right to acquire such securities through immediate conversion of securities. The Fund may write covered call options or uncovered call options.

The Fund will receive a premium from writing a call option, which increases the Fund’s return on the underlying security in the event the option expires unexercised or is closed out at a profit. The amount of the premium reflects, among other things, the relationship between the exercise price and the current market value of the underlying security, the volatility of the underlying security, the amount of time remaining until expiration, current interest rates, and the effect of supply and demand in the options market and in the market for the underlying security.

In return for the premium received when it writes a covered call option, the Fund gives up some or all of the opportunity to profit from an increase in the market price of the securities covering the call option during the life of the option. The Fund retains the risk of loss should the price of such securities decline. If the option expires unexercised, the Fund realizes a gain equal to the premium, which may be offset by a decline in price of the underlying security. If the option is exercised, the Fund realizes a gain or loss equal to the difference between the Fund’s cost for the underlying security and the proceeds of sale (exercise price minus commissions) plus the amount of the premium.

The Fund may terminate a call option that it has written before it expires by entering into a closing purchase transaction. The Fund may enter into closing purchase transactions in order to free itself to sell the underlying security or to write another call on the security, realize a profit on a previously written call option, or protect a security from being called in an unexpected market rise. Any profits from a closing purchase transaction may be offset by a decline in the value of the underlying security. Conversely, because increases in the market price of a call option will generally reflect increases in the market price of the underlying security, any loss resulting from a closing purchase transaction is likely to be offset in whole or in part by unrealized appreciation of the underlying security owned by the Fund.

Uncovered call options. Writing uncovered call options may enable the Fund to realize income without committing capital to the ownership of the underlying securities or instruments, however writing uncovered calls are riskier than writing covered calls because there is no underlying security held by the Fund that can act as a partial hedge. When the Fund has written an uncovered call option, the Fund will not necessarily hold securities offsetting the risk to the Fund. As a result of writing a call option without holding the underlying the securities, if the call option were exercised, the Fund might be required to purchase the security that is the subject of the call at the market price at the time of exercise. The Fund’s exposure on such an option is theoretically unlimited. There is also a risk, especially with less liquid preferred and debt securities, that the security may not be available for purchase. Uncovered calls have speculative characteristics.

Covered put options. The Fund may write covered put options in order to enhance its current return. Such options transactions may also be used as a limited form of hedging against an increase in the price of securities that the Fund plans to purchase. A put option gives the holder the right to sell, and obligates the writer to buy, a security at the exercise price at any time before the expiration date. A put option may be “covered” if the writer earmarks or otherwise segregates liquid assets equal to the price to be paid if the option is exercised minus margin on deposit.

By writing a put option, the Fund assumes the risk that it may be required to purchase the underlying security for an exercise price higher than its then current market value, resulting in a potential capital loss unless the security later appreciates in value.

The Fund may terminate a put option that it has written before it expires by entering into a closing purchase transaction. Any loss from this transaction may be partially or entirely offset by the premium received on the terminated option.

Purchasing put and call options. The Fund may also purchase put options to protect portfolio holdings against a decline in market value. This protection lasts for the life of the put option because the Fund, as a holder of the option, may sell the underlying security at the exercise price regardless of any decline in its market price. In order for a put option to be profitable, the market price of the underlying security must decline sufficiently below the exercise price to cover the premium and transaction costs that the Fund must pay. These costs will reduce any profit the Fund might have realized had it sold the underlying security instead of buying the put option.

The Fund may purchase call options to hedge against an increase in the price of securities that the Fund wants ultimately to buy. Such hedge protection is provided during the life of the call option since the Fund, as holder of the call option, is able to buy the underlying security at the exercise price regardless of any increase in the underlying security’s market price. In order for a call option to be profitable, the market price of the underlying security must rise sufficiently above the exercise price to cover the premium and transaction costs. These costs will reduce any profit the Fund might have realized had it bought the underlying security at the time it purchased the call option.

The Fund may also purchase put and call options to attempt to enhance its current return.

Options on foreign securities. The Fund may purchase and sell options on foreign securities if the Adviser believes that the investment characteristics of such options, including the risks of investing in such options, are consistent with the Fund’s investment objective. It is expected that risks related to such options will not differ materially from risks related to options on U.S. securities. However, position limits and other rules of foreign exchanges may differ from those in the United States. In addition, options markets in some countries, many of which are relatively new, may be less liquid than comparable markets in the United States.

Options on securities indices. The Fund may write or purchase options on securities indices. Index options are similar to options on individual securities in that the purchaser of an index option acquires the right to buy (in the case of a call) or sell (in the case of a put), and the writer undertakes the obligation to sell or buy (as the case may be), units of an index at a stated exercise price during the term of the option. Instead of the right to take or make actual delivery of securities, the holder of an index option has the right to receive a cash “exercise settlement amount.” This amount is equal to the amount by which the fixed exercise price of the option exceeds (in the case of a put) or is less than (in the case of a call) the closing value of the underlying index on the date of the exercise, multiplied by a fixed “index multiplier.”

Price movements in securities which the Fund owns or intends to purchase probably will not correlate perfectly with movements in the level of a securities index and, therefore, if the Fund uses an option for hedging purposes, it bears the risk of a loss on a securities index option which is not completely offset by movements in the price of such securities. Because securities index options are settled in cash, a call writer cannot determine the amount of its settlement obligations in advance and, unlike call writing on a specific security, cannot provide in advance for, or cover, its potential settlement obligations by acquiring and holding underlying securities. The Fund may, however, cover call options written on a securities index by holding a mix of securities which substantially replicate the movement of the index or by holding a call option on the securities index with an exercise price no higher than the call option sold.

Compared to the purchase or sale of futures contracts, the purchase of call or put options on an index involves less potential risk to the Fund because the maximum amount at risk is the premium paid for the options plus transactions costs. The writing of a put or call option on an index involves risks similar to those risks relating to the purchase or sale of index futures contracts.

Risks involved in the use of options. The successful use of the Fund’s options strategies depends on the ability of the Adviser to forecast correctly interest rate and market movements. For example, if the Fund were to write a call option based on the Adviser’s expectation that the price of the underlying security would fall, but the price were to rise instead, the Fund could be required to sell the security upon exercise at a price below the current market price. Similarly, if the Fund were to write a put option based on the Adviser’s expectation that the price of the underlying security would rise, but the price were to fall instead, the Fund could be required to purchase the security upon exercise at a price higher than the current market price.

When the Fund purchases an option, it runs the risk that it will lose its entire investment in the option in a relatively short period of time, unless the Fund exercises the option or enters into a closing sale transaction before the option’s expiration. If the price of the underlying security does not rise (in the case of a call) or fall (in the case of a put) to an extent sufficient to cover the option premium and transaction costs, the Fund will lose part or all of its investment in the option. This contrasts with an investment by the Fund in the underlying security, since the Fund will not realize a loss if the security’s price does not change.

The effective use of options also depends on the Fund’s ability to terminate option positions at times when the Adviser deems it desirable to do so. There is no assurance that the Fund will be able to effect closing transactions at any particular time or at an acceptable price.

If a secondary market in options were to become unavailable, the Fund could no longer engage in closing transactions. Lack of investor interest might adversely affect the liquidity of the market for particular options or series of options. A market may discontinue trading of a particular option or options generally. In addition, a market could become temporarily unavailable if unusual events — such as volume in excess of trading or clearing capability — were to interrupt its normal operations.

A market may at times find it necessary to impose restrictions on particular types of options transactions, such as opening transactions. For example, if an underlying security ceases to meet qualifications imposed by the market or the Options Clearing Corporation, new series of options on that security will no longer be opened to replace expiring series, and opening transactions in existing series may be prohibited. If an options market were to become unavailable, the Fund as a holder of an option would be able to realize profits or limit losses only by exercising the option, and the Fund, as option writer, would remain obligated under the option until expiration or exercise.

Disruptions in the markets for the securities underlying options purchased or sold by the Fund could result in losses on the options. If trading is interrupted in an underlying security, the trading of options on that security is normally halted as well. As a result, the Fund as purchaser or writer of an option will be unable to close out its positions until options trading resumes, and it may be faced with considerable losses if trading in the security reopens at a substantially different price. In addition, the Options Clearing Corporation or options markets may impose exercise restrictions. If a prohibition on exercise is imposed at the time when trading in the option has also been halted, the Fund as purchaser or writer of an option will be locked into its position until one of the two restrictions has been lifted. If the Options Clearing Corporation were to determine that the available supply of an underlying security appears insufficient to permit delivery by the writers of all outstanding calls in the event of exercise, it may prohibit indefinitely the exercise of put options. The Fund, as holder of such a put option, could lose its entire investment if the prohibition remained in effect until the put option’s expiration.

Foreign-traded options are subject to many of the same risks presented by internationally-traded securities. In addition, because of time differences between the United States and various foreign countries, and because different holidays are observed in different countries, foreign options markets may be open for trading during hours or on days when U.S. markets are closed. As a result, option premiums may not reflect the current prices of the underlying interest in the United States.

Over-the-counter (“OTC”) options purchased by the Fund and assets held to cover OTC options written by the Fund may, under certain circumstances, be considered illiquid securities for purposes of any limitation on the Fund’s ability to invest in illiquid securities.

In addition to the mortgage related securities discussed above, the Fund may invest in asset-backed securities that are not mortgage-related. Asset-backed securities other than mortgage-related securities represent undivided fractional interests in pools of instruments, such as consumer loans, and are typically similar in structure to mortgage-related pass-through securities. Payments of principal and interest are passed through to holders of the securities and are typically supported by some form of credit enhancement, such as a letter of credit, surety bond, limited guarantee by another entity, or by priority to certain of the borrower’s other securities. The degree of credit-enhancement, if any, varies, applying only until exhausted and generally covering only a fraction of the security’s par value.

The value of such asset-backed securities is affected by changes in the market’s perception of the asset backing the security, changes in the creditworthiness of the servicing agent for the instrument pool, the originator of the instruments, or the financial institution providing any credit enhancement and the expenditure of any portion of any credit enhancement. The risks of investing in asset-backed securities are ultimately dependent upon payment of the underlying instruments by the obligors, and the Fund would generally have no recourse against the obligee of the instruments in the event of default by an obligor. The underlying instruments are subject to prepayments which shorten the duration of asset-backed securities and may lower their return, in generally the same manner as described above for prepayments of pools of mortgage loans underlying mortgage-related securities.

The interest and principal payments on pre-refunded municipal securities are typically paid from the cash flow generated from an escrow fund consisting of U.S. Government securities. These payments have been “pre-refunded” using the escrow fund.

The Fund may invest in securities that are purchased in private placements and, accordingly, are subject to restrictions on resale as a matter of contract or under federal securities laws. While such private placements may offer attractive opportunities for investment not otherwise available on the open market, the securities so purchased are often “restricted securities,” i.e., securities which cannot be sold to the public without registration under the Securities Act of 1933 (the “Securities Act”) or the availability of an exemption from registration (such as Rules 144 or 144A), or which are not readily marketable because they are subject to other legal or contractual delays in or restrictions on resale. Generally speaking, restricted securities may be sold only to qualified institutional buyers, or in a privately negotiated transaction to a limited number of purchasers, or in limited quantities after they have been held for a specified period of time and other conditions are met pursuant to an exemption from registration, or in a public offering for which a registration statement is in effect under the Securities Act.

Because there may be relatively few potential purchasers for such investments, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the Fund could find it more difficult to sell such securities when the Adviser believes it advisable to do so or may be able to sell such securities only at prices lower than if such securities were more widely held. Market quotations for such securities are generally less readily available than for publicly traded securities. The absence of a trading market can make it difficult to ascertain a market value for such securities for purposes of computing the Fund’s net asset value, and the judgment of the Adviser may at times play a greater role in valuing these securities than in the case of publicly traded securities. Disposing of such securities, which may be illiquid investments, can involve time-consuming negotiation and legal expenses, and it may be difficult or impossible for the Fund to sell them promptly at an acceptable price. The Fund may have to bear the extra expense of registering such securities for resale and the risk of substantial delay in effecting such registration.

The Fund may be deemed to be an “underwriter” for purposes of the Securities Act when selling restricted securities to the public, and in such event the Fund may be liable to purchasers of such securities if the registration statement prepared by the issuer, or the prospectus forming a part of it, is materially inaccurate or misleading.

The Fund may to the extent permitted under the 1940 Act and exemptive rules and orders thereunder, invest in shares of other investment companies, which include funds managed by SSGA FM, which invest exclusively in money market instruments or in investment companies with investment policies and objectives which are substantially similar to those of the Fund. These investments may be made temporarily, for example, to invest uncommitted cash balances or, in limited circumstances, to assist in meeting shareholder redemptions , or as long-term investments.

The Fund may invest in REITs. REITs pool investors’ funds for investment primarily in income producing real estate or real estate loans or interests. A REIT is not taxed on income distributed to shareholders if it complies with several requirements relating to its organization, ownership, assets, and income and a requirement that it distribute to its shareholders at least 90% of its taxable income (other than net capital gains) for each taxable year. REITs can

generally be classified as Equity REITs, Mortgage REITs and Hybrid REITs. Equity REITs, which invest the majority of their assets directly in real property, derive their income primarily from rents. Equity REITs can also realize capital gains by selling properties that have appreciated in value. Mortgage REITs, which invest the majority of their assets in real estate mortgages, derive their income primarily from interest payments. Hybrid REITs combine the characteristics of both Equity REITs and Mortgage REITs. The Fund will not invest in real estate directly, but only in securities issued by real estate companies. However, the Fund may be subject to risks similar to those associated with the direct ownership of real estate (in addition to securities markets risks) because of its policy of concentration in the securities of companies in the real estate industry. These include declines in the value of real estate, risks related to general and local economic conditions, dependency on management skill, heavy cash flow dependency, possible lack of availability of mortgage funds, overbuilding, extended vacancies of properties, increased competition, increases in property taxes and operating expenses, changes in zoning laws, losses due to costs resulting from the clean-up of environmental problems, liability to third parties for damages resulting from environmental problems, casualty or condemnation losses, limitations on rents, changes in neighborhood values, the appeal of properties to tenants and changes in interest rates. Investments in REITs may subject Fund shareholders to duplicate management and administrative fees.

In addition to these risks, Equity REITs may be affected by changes in the value of the underlying property owned by the trusts, while Mortgage REITs may be affected by the quality of any credit extended. Further, Equity and Mortgage REITs are dependent upon management skills and generally may not be diversified. Equity and Mortgage REITs are also subject to heavy cash flow dependency, defaults by borrowers and self-liquidation. In addition, if applicable, Equity and Mortgage REITs could possibly fail to qualify for the beneficial tax treatment available to REITs under the Code, or to maintain their exemptions from registration under the 1940 Act. The above factors may also adversely affect a borrower’s or a lessee’s ability to meet its obligations to the REIT. In the event of a default by a borrower or lessee, the REIT may experience delays in enforcing its rights as a mortgagee or lessor and may incur substantial costs associated with protecting investments.

The Fund may enter into repurchase agreements with banks, other financial institutions, such as broker-dealers, and other institutional counterparties. Under a repurchase agreement, the Fund purchases securities from a financial institution that agrees to repurchase the securities at the Fund’s original purchase price plus interest within a specified time. The Fund will limit repurchase transactions to those member banks of the Federal Reserve System, broker-dealers and other financial institutions whose creditworthiness the Adviser considers satisfactory. Should the counterparty to a transaction fail financially, the Fund may encounter delay and incur costs before being able to sell the securities, or may be prevented from realizing on the securities. Further, the amount realized upon the sale of the securities may be less than that necessary to fully compensate the Fund.

The Fund may enter into reverse repurchase agreements, which are a form of borrowing. Under reverse repurchase agreements, the Fund transfers possession of portfolio securities to financial institutions in return for cash in an amount equal to a percentage of the portfolio securities’ market value and agrees to repurchase the securities at a future date by repaying the cash with interest. The Fund retains the right to receive interest and principal payments from the securities. Cash or liquid high quality debt obligations from the Fund’s portfolio equal in value to the repurchase price including any accrued interest will be segregated by the Custodian on the Fund’s records while a reverse repurchase agreement is in effect. Reverse repurchase agreements involve the risk that the market value of securities sold by the Fund may decline below the price at which it is obligated to repurchase the securities. Reverse repurchase agreements involve the risk that the buyer of the securities sold might be unable to deliver them when the Fund seeks to repurchase the securities. If the buyer files for bankruptcy or becomes insolvent, the Fund may be delayed or prevented from recovering the security that it sold.

The Fund may contract with a counterparty to pay a stream of cash flows and receive the total return of an index or a security for purposes of attempting to obtain a particular desired return at a lower cost to the Fund than if the Fund had invested directly in an instrument that yielded that desired return. The Fund’s return on a swap will depend on the ability of its counterparty to perform its obligations under the swap. The Adviser will cause the Fund to enter into swap agreements only with counterparties that would be eligible for consideration as repurchase agreement counterparties under the Fund’s repurchase agreement guidelines.

The Fund may enter into interest rate swap transactions with respect to any security they are entitled to hold. Interest rate swaps involve the exchange by the Fund with another party of their respective rights to receive interest, e.g., an exchange of floating rate payments for fixed rate payments. The Fund expects to enter into these transactions primarily to preserve a return or spread on a particular investment or portion of its portfolio or to protect against any increase in the price of securities it anticipates purchasing at a later date. The Fund generally intends to use these transactions as a hedge and not as a speculative investment. For example, the Fund may enter into an interest rate swap in order to protect against declines in the value of fixed income securities held by the Fund. In such an instance, the Fund may agree with a counterparty to pay a fixed rate (multiplied by a notional amount) and the counterparty to pay a floating rate multiplied by the same notional amount. If interest rates rise, resulting in a diminution in the value of the Fund, the Fund would receive payments under the swap that would offset, in whole or in part, such diminution in value; if interest rates fall, the Fund would likely lose money on the swap transaction.

The Fund may invest in Inflation-Protection Securities (“TIPSs”), a type of inflation-indexed Treasury security. TIPSs typically provide for semiannual payments of interest and a payment of principal at maturity. In general, each payment will be adjusted to take into account any inflation or deflation that occurs between the issue date of the security and the payment date based on the Consumer Price Index for All Urban Consumers (“CPI-U”).

Each semiannual payment of interest will be determined by multiplying a single fixed rate of interest by the inflation-adjusted principal amount of the security for the date of the interest payment. Thus, although the interest rate will be fixed, the amount of each interest payment will vary with changes in the principal of the security as adjusted for inflation and deflation.

TIPSs also provide for an additional payment (a “minimum guarantee payment”) at maturity if the security’s inflation-adjusted principal amount for the maturity date is less than the security’s principal amount at issuance. The amount of the additional payment will equal the excess of the security’s principal amount at issuance over the security’s inflation-adjusted principal amount for the maturity date.

The Fund may purchase U.S. Government securities. The types of U.S. Government obligations in which the Fund may at times invest include: (1) U.S. Treasury obligations and (2) obligations issued or guaranteed by U.S. Government agencies and instrumentalities which are supported by any of the following: (a) the full faith and credit of the U.S. Treasury, (b) the right of the issuer to borrow an amount limited to a specific line of credit from the U.S. Treasury, (c) discretionary authority of the U.S. Government agency or instrumentality, or (d) the credit of the instrumentality (examples of agencies and instrumentalities are: Federal Land Banks, Federal Housing Administration, Federal Farm Credit Bank, Farmers Home Administration, Export-Import Bank of the United States, Central Bank for Cooperatives, Federal Intermediate Credit Banks, Federal Home Loan Banks, General Services Administration, Maritime Administration, Tennessee Development Bank, Asian-American Development Bank, International Bank for Reconstruction and Development and Federal National Mortgage Association). No assurance can be given that in the future the U.S. Government will provide financial support to U.S. Government securities it is not obligated to support.

Investing in U.S. registered, dollar-denominated, securities issued by non-U.S. issuers involves some risks and considerations not typically associated with investing in U.S. companies. These include differences in accounting, auditing and financial reporting standards, the possibility of expropriation or confiscatory taxation, adverse changes in investment or exchange control regulations, political instability which could affect U.S. investments in non-U.S.

countries, and potential restrictions of the flow of international capital. Non-U.S. companies may be subject to less governmental regulation than U.S. issuers. Moreover, individual non-U.S. economies may differ favorably or unfavorably from the U.S. economy in such respects as growth of gross domestic product, rate of inflation, capital reinvestment, resource self-sufficiency and balance of payment positions.

The Fund’s investment in common stock of non-U.S. corporations may also be in the form of American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and European Depositary Receipts (“EDRs”) (collectively “Depositary Receipts”). Depositary Receipts are receipts, typically issued by a bank or trust company, which evidence ownership of underlying securities issued by a non-U.S. corporation. For ADRs, the depository is typically a U.S. financial institution and the underlying securities are issued by a non-U.S. issuer. For other Depositary Receipts, the depository may be a non-U.S. or a U.S. entity, and the underlying securities may have a non-U.S. or a U.S. issuer. Depositary Receipts will not necessarily be denominated in the same currency as their underlying securities. Generally, ADRs, in registered form, are designed for use in the U.S. securities markets, and EDRs, in bearer form, are designated for use in European securities markets. GDRs are tradable both in the United States and in Europe and are designed for use throughout the world. The Fund may invest in unsponsored Depositary Receipts. The issuers of unsponsored Depositary Receipts are not obligated to disclose material information in the United States, and, therefore, there may be less information available regarding such issuers and there may not be a correlation between such information and the market value of the Depositary Receipts.

Eurodollar Certificates of Deposit, Eurodollar Time Deposits and Yankee Certificates of Deposit. The Fund may invest in Eurodollar Certificates of Deposit (“ECDs”), Eurodollar Time Deposits (“ETDs”) and Yankee Certificates of Deposit (“YCDs”). ECDs and ETDs are U.S. dollar denominated certificates of deposit and time deposits, respectively, issued by non-U.S. branches of domestic banks and non-U.S. banks. YCDs are U.S. dollar denominated certificates of deposit issued by U.S. branches of non-U.S. banks. Different risks than those associated with the obligations of domestic banks may exist for ECDs, ETDs and YCDs because the banks issuing these instruments, or their domestic or non-U.S. branches, are not necessarily subject to the same regulatory requirements that apply to domestic banks, such as loan limitations, examinations and reserve, accounting, auditing, recordkeeping and public reporting requirements. Obligations of non-U.S. issuers also involve risks such as future unfavorable political and economic developments, withholding or other taxes, seizures of non-U.S. deposits, currency controls, interest limitations, and other governmental restrictions that might affect repayment of principal or payment of interest, or the ability to honor a credit commitment.

To secure an advantageous price or yield, the Fund may purchase securities on a when-issued, delayed delivery, to-be-announced (“TBA”) or forward commitment basis and may sell securities on a forward commitment or delayed delivery basis. The Fund will enter into when-issued, delayed delivery, TBA or forward commitment transactions for the purpose of acquiring securities and not for the purpose of leverage.

When purchasing a security on a when-issued, delayed delivery, TBA or forward commitment basis, the Fund assumes the rights and risks of ownership of the security, including the risk of price and yield fluctuations, and takes such fluctuations into account when determining its NAV. When such transactions are negotiated, certain terms may be fixed at the time the commitment is made, but delivery and payment for the securities takes place at a later date. In general, the Fund does not pay for the securities until received and does not start earning interest or other income until the contractual settlement date. The Fund may take delivery of the securities or it may sell the securities before the settlement date.

At the time of delivery of the securities, the value may be more or less than the purchase or sale price. If the Fund remains substantially fully invested at a time when when-issued, delayed delivery, TBA or forward commitment purchases are outstanding, the purchases may result in a form of leverage and give rise to increased volatility of the Fund’s NAV. Default by, or bankruptcy of, a counterparty to a when-issued, delayed delivery, TBA or forward commitment transaction would expose the Fund to possible losses because of an adverse market action, expenses or delays in connection with the purchase or sale of the pools specified in such transaction. Purchases of when-issued, delayed delivery, TBA or forward commitment securities also involve a risk of loss if the seller fails to deliver after the value of the securities has risen.

Cash or other liquid assets in an amount equal to the amount of the Fund’s when-issued, delayed-delivery, TBA or forward commitment purchase obligations will be earmarked on the Fund’s books. There is no guarantee, however, that such earmarking will be successful in reducing or eliminating the leveraging effect of such transactions or the risks associated with leverage.

A TBA transaction involves a commitment to purchase securities sold for a fixed price where the underlying securities are announced at a future date. The seller does not specify the particular securities to be delivered. Instead, the Fund agrees to accept any security that meets specified terms. For example, in a TBA mortgage-backed security transaction, the Fund and the seller would agree upon the issuer, interest rate and terms of the underlying mortgages. The seller would not identify the specific underlying mortgages until it issues the security. For this reason, in a TBA transaction, the Fund commits to purchase securities for which all specific information is not yet known at the time of the trade, particularly the exact face amount in forward commitment mortgage-backed securities transactions. The purchaser in a TBA transaction generally is subject to increased market risk and interest rate risk because the delivered securities may be less favorable than anticipated by the purchaser.

The Fund may also enter into a forward commitment to sell securities it owns. The use of forward commitments enables the Fund to hedge against anticipated changes in interest rates and prices. In a forward sale, the Fund does not participate in gains or losses on the security occurring after the commitment date. Forward commitments to sell securities also involve a risk of loss if the seller fails to take delivery after the value of the securities has declined. Forward commitment transactions involve additional risks similar to those associated with investments in options and futures contracts.

Financial Industry Regulatory Authority, Inc. (“FINRA”) rules impose mandatory margin requirements for “Covered Agency Transactions,” which include TBA Transactions, certain transactions in pass-through mortgage-backed securities or small-business administration-backed asset-backed securities and transactions in collateralized mortgage obligations (“CMOs”), in each case where such transactions have delayed contractual settlement dates of a specified period. There are limited exceptions to these margin requirements. Covered Agency Transactions historically have not been required to be collateralized. The collateralization of Covered Agency Transactions is intended to mitigate counterparty credit risk between trade and settlement, but could increase the cost of such transactions and impose added operational complexity.

The Fund may be required to earmark or otherwise segregate liquid assets in respect of its obligations under derivatives transactions that involve contractual obligations to pay in the future, or the Fund may engage in other measures to “cover” its obligations with respect to such transactions. The amounts that are earmarked or otherwise segregated may be based on the notional value of the derivative or on the daily mark-to-market obligation under the derivatives contract and may be reduced by amounts on deposit with the applicable broker or counterparty to the derivatives transaction. In certain circumstances, the Fund may enter into an offsetting position rather than earmarking or segregating liquid assets. The Fund may modify its asset segregation and coverage policies from time to time. Although earmarking or segregating may in certain cases have the effect of limiting the Fund’s ability to engage in derivatives transactions, the extent of any such limitation will depend on a variety of factors, including the method by which the Fund determines the nature and amount of assets to be earmarked or segregated.

The Fund may in the future determine to become a “feeder” fund that invests all of its assets in another open-end investment company (a “master fund”) that has substantially similar investment strategies as the Fund. This structure is sometimes called a “master/feeder” structure.

The Trust has adopted the following fundamental investment policies with respect to the Fund, which may not be changed without the affirmative vote of a “majority of the outstanding voting securities” of the shareholders of the Fund. A “majority of the outstanding voting securities” is defined in the 1940 Act to mean the affirmative vote of the lesser of: (1) more than 50% of the outstanding shares of the Fund; and (2) 67% or more of the shares present at a meeting if more than 50% of the outstanding shares are present at the meeting in person or by proxy.

For purposes of the above investment limitation number 6, in the case of a tax-exempt bond issued by a non-governmental user, where the tax-exempt bond is backed only by the assets and revenues of the non-governmental user, then such non-governmental user would be deemed to be the sole issuer. All percentage limitations (except the limitation to borrowings) on investments will apply at the time of the making of an investment and shall not be considered violated unless an excess or deficiency occurs or exists immediately after and as a result of such investment. Except for the investment restrictions expressly identified as fundamental, or to the extent designated as such in the Prospectus with respect to the Fund, the other investment policies described in this SAI or in the Prospectus are not fundamental and may be changed by approval of the Trustees without shareholder approval.

Fundamental Investment Restrictions (1) through (5), as numbered above limit the Fund’s ability to engage in certain investment practices and purchase securities or other instruments to the extent consistent with applicable law as that law changes from time to time. Applicable law includes the 1940 Act, the rules or regulations thereunder and applicable orders of the SEC as are currently in place. In addition, interpretations and guidance provided by the SEC staff may be taken into account, where deemed appropriate by the Fund, to determine if an investment practice or the purchase of securities or other instruments is permitted by applicable law. As such, the effects of these limitations will change as the statute, rules, regulations or orders (or, if applicable, interpretations) change, and no shareholder vote will be required or sought when such changes permit or require a resulting change in practice.

The policies set forth below to be followed by State Street and SSGA FM (collectively, the “Service Providers”) for the disclosure of information about the portfolio holdings of the SSGA Funds, State Street Master Funds, and State Street Institutional Investment Trust (each, a “Trust”). These disclosure policies are intended to ensure compliance by the Service Providers and the Trust with applicable regulations of the federal securities laws, including the 1940 Act and the Investment Advisers Act of 1940, as amended. The Board of Trustees of the Trust must approve all material amendments to the policy.

It is the policy of the Service Providers to protect the confidentiality of client holdings and prevent the selective disclosure of non-public information concerning the Trust.

No information concerning the portfolio holdings of the Trust may be disclosed to any party (including shareholders) except as provided below. The Service Providers are not permitted to receive compensation or other consideration in connection with disclosing information about a Fund’s portfolio to third parties. In order to address potential conflicts between the interest of Fund shareholders, on the one hand, and those of the Service Providers or any affiliated person of those entities or of the Fund, on the other hand, the Fund’s policies require that non-public disclosures of information regarding the Fund’s portfolio may be made only if there is a legitimate business purpose consistent with fiduciary duties to all shareholders of the Fund.

The Board of Trustees exercises continuing oversight over the disclosure of the Fund’s holdings by (i) overseeing the implementation and enforcement of the portfolio holding disclosure policy, Codes of Ethics and other relevant policies of the Fund and its Service Providers by the Trust’s Chief Compliance Officer (“CCO”), and (ii) considering reports and recommendations by the Trust’s CCO concerning any material compliance matters (as defined in Rule 38a-1 under the 1940 Act). The Board reserves the right to amend the policy at any time without prior notice in its sole discretion.

Publicly Available Information. Any party may disclose portfolio holdings information after the holdings are publicly available.

Disclosure of the complete holdings of the Fund is required to be made quarterly within 60 days of the end of the Fund’s fiscal quarter in the Annual Report and Semi-Annual Report to Fund shareholders and in the monthly holdings report on Form N-PORT, with every third month made available to the public by the SEC 60 days after the end of the Portfolios’ fiscal quarter. You can find SEC filings on the SEC’s website, www.sec.gov. Information about a Fund’s 10 largest holdings generally is posted on the Fund’s website at SSGA.com, within 30 days following the end of each month. The Fund will also make complete portfolio holdings available generally no later than 60 calendar days after the end of the Fund’s fiscal quarter or subsequent to periodic portfolio holdings disclosure in the Fund’s filings with the SEC or on their website.

Press Interviews Brokers and Other Discussions. Portfolio managers and other senior officers or spokespersons of the Service Providers or the Trust may disclose or confirm the ownership of any individual portfolio holding position to reporters, brokers, shareholders, consultants or other interested persons only if such information has been previously publicly disclosed in accordance with these disclosure policies. For example, a portfolio manager discussing the Trust may indicate that he owns XYZ Company for the Trust only if the Trust’s ownership of such company has previously been publicly disclosed.

Trading Desk Reports. State Street Global Advisors’ (“SSGA”) trading desk may periodically distribute lists of investments held by its clients (including the Trust) for general analytical research purposes. In no case may such lists identify individual clients or individual client position sizes. Furthermore, in the case of equity securities, such lists shall not show aggregate client position sizes.

Confidentiality Agreement. No non-public disclosure of the Fund’s portfolio holdings will be made to any party unless such party has signed a written Confidentiality Agreement. For purposes of the disclosure policies, any Confidentiality Agreement must be in a form and substance acceptable to, and approved by, the Trust’s officers.

Evaluation Service Providers. There are numerous mutual fund evaluation services (such as Morningstar, Inc. and Broadridge Financial Solutions, Inc., formerly Lipper, Inc.) and due diligence departments of broker-dealers and wirehouses that regularly analyze the portfolio holdings of mutual funds in order to monitor and report on various attributes. These services and departments then distribute the results of their analysis to the public, paid subscribers and/or in-house brokers. In order to facilitate the review of the Trust by these services and departments, the Trust may distribute (or authorize the Service Providers and the Trust’s custodian or fund accountants to distribute) month-end portfolio holdings to such services and departments only if such entity has executed a confidentiality agreement.

Additional Restrictions. Notwithstanding anything herein to the contrary, the Board of Trustees, State Street and SSGA FM may, on a case-by-case basis, impose additional restrictions on the dissemination of portfolio information beyond those found in these disclosure policies.

Waivers of Restrictions. These disclosure policies may not be waived, or exceptions made, without the consent of the Trust’s officers. All waivers and exceptions involving the Trust will be disclosed to the Board of Trustees no later than its next regularly scheduled quarterly meeting.

Disclosures Required by Law. Nothing contained herein is intended to prevent the disclosure of portfolio holdings information as may be required by applicable law. For example, SSGA FM, State Street, the Trust or any of its affiliates or service providers may file any report required by applicable law (such as Schedules 13D, 13G and 13F or Form N-MFP), respond to requests from regulators and comply with valid subpoenas.

The Board of Trustees is responsible for overseeing generally the management, activities and affairs of the Fund and has approved contracts with various organizations to provide, among other services, day-to-day management required by the Trust (see the section called “Investment Advisory and Other Services”). The Board has engaged the Adviser to manage the Fund on a day-to day basis. The Board is responsible for overseeing the Adviser and other service providers in the operation of the Trust in accordance with the provisions of the 1940 Act, applicable Massachusetts law and regulation, other applicable laws and regulations, and the Amended and Restated Declaration of Trust. The Trustees listed below are also Trustees of the SSGA Funds, the State Street Master Funds and the State Street Navigator Securities Lending Trust (the “Navigator Trust”) and their respective series. Except for Mr. Taber, the Trustees listed below are also Trustees of State Street Institutional Funds, State Street Variable Insurance Series Funds, Inc., Elfun Diversified Fund, Elfun Government Money Market Fund, Elfun Tax-Exempt Income Fund, Elfun Income Fund, Elfun International Equity Fund and Elfun Trusts (collectively, the “Elfun Funds”). The following table provides information with respect to each Trustee, including those Trustees who are not considered to be “interested” as that term is defined in the 1940 Act (the “Independent Trustees”), and each officer of the Trust.

The following lists the principal officers for the Trust, as well as their mailing addresses and ages, positions with the Trust and length of time served, and present and principal occupations:

The By-Laws of the Trust provide that the Trust shall indemnify each person who is or was a Trustee of the Trust against all expenses, judgments, fines, settlements and other amounts actually and reasonably incurred in connection with any proceedings if the person in good faith and reasonably believes that his or her conduct was in the Trust’s best interest. The Trust, at its expense, provides liability insurance for the benefit of its Trustees and officers.

Following is a summary of the experience, attributes and skills which qualify each Trustee to serve on the Boards of Trustees of the Trust.

Michael F. Holland: Mr. Holland is an experienced business executive with over 50 years of experience in the financial services industry including 24 years as a portfolio manager of another registered mutual fund; his experience includes service as a trustee, director or officer of various investment companies. He has served on the Board of Trustees and related Committees of State Street Institutional Investment Trust and State Street Master Funds for 19 years (since the Trusts’ inception) and possesses significant experience regarding the operations and history of those Trusts. Mr. Holland serves as a Trustee of the Navigator Trust, SSGA Funds, Elfun Funds, State Street Institutional Funds and State Street Variable Insurance Funds, Inc.

John R. Costantino: In addition to his tenure as a board member of various other funds advised by SSGA FM, Mr. Costantino has over 32 years of private equity investing experience. He has also served as an officer or a board member of charitable organizations and public and private companies for over 31 years. Mr. Costantino is an attorney and a certified public accountant. Mr. Costantino serves as a Trustee of the State Street Institutional Investment Trust, State Street Master Funds, Navigator Trust, SSGA Funds, Elfun Funds, State Street Institutional Funds (independent chairperson through 2016) and State Street Variable Insurance Funds, Inc. (independent chairperson through 2016).

Ellen M. Needham: Ms. Needham is a Senior Managing Director of State Street Global Advisors; Head of Global Funds Management, and President of SSGA Funds Management, Inc. Ms. Needham serves as a director of SSGA Funds Management, Inc. and a manager of State Street Global Advisors Funds Distributors, LLC. In her role, Ms. Needham is responsible for managing firm-wide processes that focus on governance, fund structure, subadviser oversight, tax, product viability, distribution, ongoing monitoring and regulatory coordination across all products globally. Ms. Needham has been involved in the investment industry for over thirty years, beginning her career at State Street in 1989. Ms. Needham also serves as a Trustee of the State Street Institutional Investment Trust, State Street Master Funds, Navigator Trust, SSGA Funds, Elfun Funds, State Street Institutional Funds and State Street Variable Insurance Funds, Inc. and is a Board Director – SPDR Europe I plc and SPDR Europe II plc Boards.

Donna M. Rapaccioli: Ms. Rapaccioli has over 31 years of service as a full-time member of the business faculty at Fordham University, where she developed and taught undergraduate and graduate courses, including International Accounting and Financial Statement Analysis and has taught at the executive MBA level. She has served on Association to Advance Collegiate Schools of Business accreditation team visits, lectured on accounting and finance topics and consulted for numerous investment banks. Ms. Rapaccioli also serves as a Trustee of the State Street Institutional Investment Trust, State Street Master Funds, Navigator Trust, SSGA Funds, Elfun Funds, State Street Institutional Funds and State Street Variable Insurance Funds, Inc.

Patrick J. Riley: Mr. Riley is an experienced business executive with over 44 years of experience in the legal and financial services industries; his experience includes service as a trustee or director of various investment companies and Associate Justice of the Superior Court of the Commonwealth of Massachusetts. He has served on the Board of Trustees and related Committees of the Trust for 31 years and possesses significant experience regarding the operations and history of the Trust. Mr. Riley serves as a Trustee of the State Street Institutional Investment Trust, State Street Master Funds, Navigator Trust, SSGA Funds, Elfun Funds, State Street Institutional Funds and State Street Variable Insurance Funds, Inc.

Richard D. Shirk: Mr. Shirk is an experienced business executive with over 52 years of experience in the health care and insurance industries and with investment matters; his experience includes service as a trustee, director or officer of various health care companies and nonprofit organizations. He has served on the Board of Trustees and related Committees of SSGA Funds for 31 years and possesses significant experience regarding the operations and history of the Trust. Mr. Shirk also serves as a Trustee of the State Street Institutional Investment Trust, State Street Master Funds, Navigator Trust, SSGA Funds, Elfun Funds, State Street Institutional Funds and State Street Variable Insurance Funds, Inc.

Bruce D. Taber: Mr. Taber is an experienced business executive with over 47 years of experience in the power generation, technology and engineering industries; his experience includes service as a trustee or director of various investment companies. He has served on the Board of Trustees and related Committees of the Trust for 28 years and possesses significant experience regarding the operations and history of the Trust. Mr. Taber also serves as a Trustee of the State Street Institutional Investment Trust, State Street Master Funds and Navigator Trust.

Michael A. Jessee: Mr. Jessee is an experienced business executive with approximately 44 years of experience in the banking industry. He previously served as President and Chief Executive Officer of the Federal Home Loan Bank of Boston as well as various senior executive positions of major banks. Mr. Jessee has served on the Navigator Trust’s Board of Trustees and related committees for 24 years and possesses significant experience regarding the Trust’s operations and history. Mr. Jesse also serves as a Trustee of the State Street Institutional Investment Trust, State Street Master Funds, Navigator Trust, SSGA Funds, Elfun Funds, State Street Institutional Funds and State Street Variable Insurance Funds, Inc.

References to the experience, attributes and skills of Trustees above are pursuant to requirements of the SEC, do not constitute holding out of the Board or any Trustee as having any special expertise or experience, and shall not impose any greater responsibility or liability on any such person or on the Board by reason thereof.

The Board of Trustees has established various committees to facilitate the timely and efficient consideration of various matters of importance to Independent Trustees, the Trust, and the Trust’s shareholders and to facilitate compliance with legal and regulatory requirements. Currently, the Board has created an Audit Committee, Governance Committee, Valuation Committee, Nominating Committee and Qualified Legal Compliance Committee (the “QLCC”).

The Audit Committee is composed of all of the Independent Trustees. The Audit Committee meets twice a year, or more often as required, in conjunction with meetings of the Board of Trustees. The Audit Committee oversees and monitors the Trust’s internal accounting and control structure, its auditing function and its financial reporting process. The Audit Committee is responsible for selecting and retaining the independent accountants for the Trust. The Audit Committee is responsible for approving the audit plans, fees and other material arrangements in respect of the engagement of the independent accountants, including non-audit services performed. The Audit Committee reviews the qualifications of the independent accountant’s key personnel involved in the foregoing activities and monitors the independent accountant’s independence. During the fiscal year ended December 31, 2020, the Audit Committee held four meetings.

Each of the Governance Committee and the Nominating Committee is composed of all the Independent Trustees. The primary functions of the Governance Committee and the Nominating Committee are to review and evaluate the composition and performance of the Board; make nominations for membership on the Board and committees; review the responsibilities of each committee; and review governance procedures, compensation of Independent Trustees, and independence of outside counsel to the Trustees. The Nominating Committee will consider nominees to the Board recommended by shareholders. Recommendations should be submitted in accordance with the procedures set forth in the Nominating Committee Charter and should be submitted in writing to the Trust, to the attention of the Trust’s Secretary, at the address of the principal executive offices of the Trust. Shareholder recommendations must be delivered to, or mailed and received at, the principal executive offices of the Trust not less than sixty (60) calendar days nor more than ninety (90) calendar days prior to the date of the Board or shareholder meeting at which the nominee candidate would be considered for election. The Governance Committee performs an annual self-evaluation of Board members. During the fiscal year ended December 31, 2020, the Governance Committee held one meeting and Nominating Committee held one meeting.

The Valuation Committee is composed of all the Independent Trustees. The Valuation Committee’s primary purpose is to review the actions and recommendations of the Adviser’s Oversight Committee no less often than quarterly. The Trust has established procedures and guidelines for valuing portfolio securities and making fair value determinations from time to time through the Valuation Committee, with the assistance of the Oversight Committee, State Street and SSGA FM. During the fiscal year ended December 31, 2020, the Valuation Committee held four meetings.

The Qualified Legal Compliance Committee (the “QLCC”) is composed of all the Independent Trustees. The primary functions of the QLCC are to receive quarterly reports from the Trust’s CCO; to oversee generally the Trust’s responses to regulatory inquiries; and to investigate matters referred to it by the Chief Legal Officer and make recommendations to the Board regarding the implementation of an appropriate response to evidence of a material violation of the securities laws or breach of fiduciary duty or similar violation by the Trust, its officers or the Trustees. During the fiscal year ended December 31, 2020, the QLCC held four meetings.

The Board has chosen to select different individuals as Co-Chairpersons of the Board of the Trust and as President of the Trust. Currently, Mr. Holland and Mr. Riley, both Independent Trustees, serve as Co-Chairpersons of the Board, Ms. Rapaccioli serves as Chairperson of the Audit Committee, Mr. Costantino and Mr. Shirk serve as Co-Chairpersons of the QLCC, Mr. Jessee and Mr. Taber serve as Co-Chairpersons of the Valuation Committee, Mr. Taber serves as Chairperson of the Governance Committee and Mr. Taber serves as Chairpersons of the Nominating Committee.

Ms. Needham, who is also an employee of the Adviser, serves as a Trustee and as President of the Trust. The Board believes that this leadership structure is appropriate, since Ms. Needham provides the Board with insight regarding the Trust’s day-to-day management, while Mr. Holland and Mr. Riley provide an independent perspective on the Trust’s overall operation and Ms. Rapaccioli provides a specialized perspective on audit matters.

The Board has delegated management of the Trust to service providers who are responsible for the day-to-day management of risks applicable to the Trust. The Board oversees risk management for the Trust in several ways. The Board receives regular reports from both the CCO and administrator for the Trust, detailing the results of the Trust’s compliance with its Board-adopted policies and procedures, the investment policies and limitations of the Fund, and applicable provisions of the federal securities laws and the Code. As needed, the Adviser discusses

management issues regarding the Trust with the Board, soliciting the Board’s input on many aspects of management, including potential risks to the Fund. The Board’s Audit Committee also receives reports on various aspects of risk that might affect the Trust and offers advice to management, as appropriate. The Trustees also meet in executive session with the independent counsel to the Independent Trustees, the independent registered public accounting firm, counsel to the Trust, the CCO and representatives of management, as needed. Through these regular reports and interactions, the Board oversees the risk management parameters for the Trust, which are effected on a day-to-day basis by service providers to the Trust.

As of December 31, 2020 none of the Independent Trustees or their immediate family members had any ownership of securities of the Adviser, State Street Global Advisors Funds Distributors, LLC (“SSGA FD” or the “Distributor”), the Trust’s distributor, or any person directly or indirectly controlling, controlled by or under common control with the Adviser or SSGA FD.

The following table sets forth information describing the dollar range of the Trust’s equity securities beneficially owned by each Trustee as of December 31, 2020.

Independent Trustees are compensated on a calendar year basis. Any Trustee who is deemed to be an “interested person” (as defined in the 1940 Act) of the Fund does not receive compensation from the Fund for his or her service as a Trustee. As of January 1, 2020, except as noted below, each Independent Trustee receives for his or her services to the State Street Master Funds, the State Street Institutional Investment Trust, the SSGA Funds, the Elfun Funds, the Navigator Trust, State Street Institutional Funds and State Street Variable Insurance Series Funds, Inc. (together, the “Fund Entities”), a $210,000 annual base retainer in addition to $22,500 for each in-person meeting, $6,000 for each special in-person meeting and $2,500 for each telephonic meeting from the Trusts. The Co-Chairpersons receive an additional $60,000 annual retainer. The annual base retainer paid to Mr. Taber is $197, 400 in light of the fact that Mr. Taber does not serve as a member of the Board of Trustees of the Elfun Funds, and the Board of Directors of State Street Institutional Funds and State Street Variable Insurance Series Funds, Inc. As of January 1, 2020, the total annual compensation paid to the Independent Trustees (other than telephonic and special meeting fees) will be allocated to each Fund Entity as follows: a fixed amount of $21,000 will be allocated to each Fund Entity or, if applicable, each series thereof, and the remainder will be allocated among the Fund Entities or, if applicable, each series based on relative net assets excluding, however, any feeder fund that invests in a master fund that is a Fund Entity or series thereof. The Independent Trustees are reimbursed for travel and other out-of pocket expenses in connection with meeting attendance. As of the date of this SAI, the Trustees are not paid pension or retirement benefits as part of the Trust’s expenses.

The following table sets forth the total remuneration of Trustees and officers of the Trust for the fiscal year ended December 31, 2020:

The Trust has adopted proxy voting procedures pursuant to which the Trust delegates the responsibility for voting proxies relating to portfolio securities held by the Fund to the Adviser, as part of the Adviser’s general management of the Fund, subject to the Board’s continuing oversight. A copy of the Trust’s proxy voting procedures is located in Appendix A, a copy of the Adviser’s proxy voting procedures are located in Appendix B.

Shareholders may receive information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ending June 30 (i) by calling (877) 521-4083 or (ii) on the SEC’s website at www.sec.gov.

The Fund had not commenced operations prior to the date of this SAI and therefore did not have any beneficial owners that owned greater than 5% of the outstanding voting securities as of the date of this SAI.

The Trustees and Officers of the Trust, as a group, own less than 1% of the Trust’s voting securities as of the date of this SAI.

SSGA FM is responsible for the investment management of the Fund pursuant to the Amended and Restated Investment Advisory Agreement dated November 17, 2015, as amended from time to time (the “Advisory Agreement”), by and between the Adviser and the Trust. The Adviser is a wholly-owned subsidiary of State Street Global Advisors, Inc., which itself is a wholly-owned subsidiary of State Street Corporation, a publicly held financial holding company. State Street is a wholly-owned subsidiary of State Street Corporation.

For the services provided under the Advisory Agreement, the Fund pays the Adviser a fee at an annual rate of [0.XX]% of the Fund’s average daily net assets.

The Advisory Agreement provides for an initial term of two years and thereafter will continue from year to year provided that such continuance is specifically approved at least annually by (a) the Trustees or by the vote of a majority of the outstanding voting securities of the Fund, and (b) vote of a majority of the Independent Trustees, cast in person at a meeting called for the purpose of voting on such approval. The Advisory Agreement may be terminated by the Adviser or the Trust without penalty upon sixty days’ notice and will terminate automatically upon its assignment.

The Adviser and its affiliates may have deposit, loan and other commercial banking relationships with the issuers of obligations that may be purchased on behalf of the Fund, including outstanding loans to such issuers that could be repaid in whole or in part with the proceeds of securities so purchased. Such affiliates deal, trade and invest for their own accounts in such obligations and are among the leading dealers of various types of such obligations. The Adviser has informed the Fund that, in making its investment decisions, it will not obtain or use material non-public information in its possession or in the possession of any of its affiliates. In making investment recommendations for the Fund, the Adviser will not inquire or take into consideration whether an issuer of securities proposed for purchase or sale by the Fund is a customer of the Adviser, its parent or its subsidiaries or affiliates and, in dealing with its customers, the Adviser, its parent, subsidiaries and affiliates will not inquire or take into consideration whether securities of such customers were held by any fund managed by the Adviser or any such affiliate.

In certain instances there may be securities that are suitable for the Fund as well as for one or more of the Adviser’s other clients. Investment decisions for the Trust and for the Adviser’s other clients are made with a view to achieving their respective investment objectives. It may develop that a particular security is bought or sold for only one client even though it might be held by, or bought or sold for, other clients. Likewise, a particular security may be bought for one or more clients when one or more clients are selling that same security. Some simultaneous transactions are inevitable when several clients receive investment advice from the same investment adviser, particularly when the same security is suitable for the investment objectives of more than one client. When two or more clients are simultaneously engaged in the purchase or sale of the same security, the securities are allocated among clients in a manner believed to be equitable to each. The Trust recognizes that in some cases this system could have a detrimental effect on the price or volume of the security as far as the Fund is concerned. However, it is believed that the ability of the Fund to participate in volume transactions will produce better executions for the Fund.

The advisory fees paid by the Fund to SSGA FM for the last three fiscal years have been omitted because the Fund had not commenced investment operations as of the date of this SAI.

Total Annual Fund Operating Expense Waivers. The Adviser has contractually agreed with the Trust, through [April 30, 2023], (i) to waive up to the full amount of the advisory fee payable by the Fund, and/or (ii) to reimburse the Fund for expenses to the extent that Total Annual Fund Operating Expenses (subject to certain exclusions as described in the Fund’s Prospectus) exceed [ ]% of average daily net assets on an annual basis.

SSGA FM serves as the administrator for the Fund pursuant to an Amended and Restated Administration Agreement. Under the Amended and Restated Administration Agreement, SSGA FM is obligated to continuously provide business management services to the Trust and the Fund and will generally, subject to the general oversight of the Trustees and except as otherwise provided in the Amended and Restated Administration Agreement, manage all of the business and affairs of the Trust.

As consideration for SSGA FM’s services as administrator with respect to the Fund, SSGA FM receives a fee at the annual rate of 0.05% of the average daily net assets attributable to Class K shares of the Fund. The fees are accrued daily at the rate of 1/365th and payable monthly on the first business day of each month.

The administration fees paid by the Fund to SSGA FM for the last three fiscal years have been omitted because the Fund had not commenced investment operations as of the date of this SAI.

State Street serves as the sub-administrator for the Trust, pursuant to a sub-administration agreement dated June 1, 2015 (the “Sub-Administration Agreement”). State Street serves as the custodian for the Trust, pursuant to a custody agreement dated April 11, 2012 (the “Custody Agreement”). Under the Sub-Administration Agreement, State Street is obligated to provide certain sub-administrative services to the Trust. Under the Custody Agreement, State Street is

obligated to provide certain custody services to the Trust, as well as basic portfolio recordkeeping required by the Trust for regulatory and financial reporting purposes. State Street is a wholly owned subsidiary of State Street Corporation, a publicly held financial holding company, and is affiliated with the Adviser. State Street’s mailing address is State Street Financial Center, One Lincoln Street, Boston, Massachusetts 02111-2900.

The Adviser and the Fund each bear a portion of the fee paid to State Street for providing sub-administration services and custodian services with respect to the Fund. The Fund also pays State Street transaction and service fees for these services and reimburses State Street for out-of-pocket expenses.

The sub-administration and custodian fees paid by the Fund to State Street for the last three fiscal years have been omitted because the Fund had not commenced investment operations as of the date of this SAI.

DST Asset Manager Solutions, Inc. serves as the Transfer and Dividend Paying Agent. DST Asset Manager Solutions, Inc. is paid for the following annual account services and activities including but not limited to: establishment and maintenance of each shareholder’s account; closing an account; acceptance and processing of trade orders; preparation and transmission of payments for dividends and distributions declared by the Fund; customer service support including receipt of correspondence and responding to shareholder and financial intermediary inquiries; investigation services; tax related support; financial intermediary commission and fee payment processing; and charges related to compliance and regulatory services.

Portfolio fees are allocated to the Fund based on the average NAV of the Fund and are billable on a monthly basis at the rate of 1/12 of the annual fee. DST Asset Manager Solutions, Inc. is reimbursed by the Fund for supplying certain out-of-pocket expenses including confirmation statements, investor statements, banking fees, postage, forms, audio response, telephone, records retention, customized programming/enhancements, reports, transcripts, microfilm, microfiche, and expenses incurred at the specific direction of the Fund. DST Asset Manager Solutions, Inc. principal business address is 2000 Crown Colony Drive, Quincy, MA 02169.

The transfer agency fees paid by the Fund to DST Asset Manager Solutions, Inc. for the last three fiscal years have been omitted because the Fund had not commenced investment operations as of the date of this SAI.

The Fund’s Board has approved the Fund’s participation in a securities lending program. Under the securities lending program, the Fund has retained State Street to serve as the securities lending agent.

The income earned by the Fund as well as the fees and/or compensation paid by the Fund (in dollars) pursuant to the Master Amended and Restated Securities Lending Authorization Agreement among SSGA Funds, State Street Institutional Investment Trust, and State Street Master Funds, each on behalf of its respective series, and State Street (the “Securities Lending Authorization Agreement”) for the fiscal year ended December 31, 2020 have been omitted because the Fund had not commenced investment operations as of the date of this SAI.

State Street, acting as agent of the Fund, will provide the following services to the Fund in connection with the Fund’s securities lending activities: (i) locating borrowers among an approved list of prospective borrowers; (ii) monitoring the value of loaned securities, the value of collateral received and other lending parameters; (iii) seeking additional collateral, as necessary, from borrowers; (iv) receiving and holding collateral from borrowers, and facilitating the investment and reinvestment of all or substantially all cash collateral in an investment vehicle designated by the Fund; (v) returning collateral to borrowers; (vi) facilitating substitute dividend, interest, and other distribution payments to the Fund from borrowers; (vii) negotiating the terms of each loan of securities, including but not limited to the amount of any loan premium, and monitoring the terms of securities loan agreements with prospective borrowers for consistency with the requirements of the Fund’s Securities Lending Authorization Agreement; (viii) selecting securities, including amounts (percentages), to be loaned; (ix) recordkeeping and accounting servicing; and (x) arranging for return of loaned securities to the Fund in accordance with the terms of the Securities Lending Authorization Agreement.

The Adviser, SSGA FD and the Trust have each adopted a code of ethics (the Trust’s code being referred to herein as the “Code of Ethics”) under Rule 17j-1 of the 1940 Act. The Code of Ethics, by relying on the codes of the underlying service providers, permits personnel of the Fund’s Adviser, Distributor and officers, subject to the provisions of the relevant code of ethics, to invest in securities, including securities that may be purchased or held by the Adviser or the Trust. Under the relevant code of ethics, all employees or officers who are deemed to be access persons (persons who have interaction with funds or accounts managed by the Adviser or SSGA FD as part of their job function) must pre-clear personal securities transactions. Each code of ethics is designed to ensure that employees conduct their personal securities transactions in a manner that does not create an actual or potential conflict of interest to the business or fiduciary responsibilities of the Trust’s service providers or officers. In addition, the Code of Ethics establishes standards prohibiting the trading in or recommending of securities based on material, nonpublic information or the divulgence of such information to others.

SSGA FD serves as the distributor of the Fund. SSGA FD is an indirect wholly-owned subsidiary of State Street Corporation. SSGA FD’s mailing address is One Iron Street, Boston, MA 02210.

Financial intermediaries are firms that, for compensation, sell shares of mutual funds, including the Fund, and/or provide certain administrative and account maintenance services to mutual fund shareholders. Financial intermediaries may include, among others, brokers, financial planners or advisors, banks, and insurance companies. In some cases, a financial intermediary may hold its clients’ Fund shares in nominee or street name. Shareholder services provided by a financial intermediary may (though they will not necessarily) include, among other things: processing and mailing trade confirmations, periodic statements, prospectuses, annual reports, semi-annual reports, shareholder notices, and other SEC-required communications; capturing and processing tax data; issuing and mailing dividend checks to shareholders who have selected cash distributions; preparing record date shareholder lists for proxy solicitations; collecting and posting distributions to shareholder accounts; and establishing and maintaining systematic withdrawals and automated investment plans and shareholder account registrations.

The compensation paid by SSGA FD to a financial intermediary may be paid continually over time, during the period when the intermediary’s clients hold investments in the Fund. The compensation to financial intermediaries may include networking fees and account-based fees. The amount of continuing compensation paid by SSGA FD to different financial intermediaries varies. In the case of most financial intermediaries, compensation for servicing is generally paid at an annual rate of 0.10% – 0.20% of the aggregate average daily NAV of Fund shares held by that financial intermediary’s customers, although in some cases the compensation may be paid at higher annual rates (which may, but will not necessarily, reflect enhanced or additional services provided by the financial intermediary). SSGA FD and its affiliates (including SSGA FM), at their own expense and out of their own assets, may also provide compensation to financial intermediaries in connection with sales of the Fund’s shares or the servicing of shareholders or shareholder accounts by financial intermediaries. Such compensation may include, but is not limited to, ongoing payments, financial assistance to financial intermediaries in connection with conferences, sales, or training programs for their employees, seminars for the public, advertising or sales campaigns, or other financial intermediary-sponsored special events. In some instances, this compensation may be made available only to certain financial intermediaries whose representatives have sold or are expected to sell significant amounts of shares. Financial intermediaries may not use sales of the Fund’s shares to qualify for this compensation to the extent prohibited by the laws or rules of any state or any self-regulatory agency, such as the Financial Industry Regulatory Authority, Inc. (“FINRA”). The level of payments made to a financial intermediary in any given year will vary and, in the case of most financial intermediaries, will not exceed 0.20% of the value of assets attributable to the financial intermediary invested in shares of funds in the SSGA FM-fund complex. In certain cases, the payments described in the preceding sentence are subject to minimum payment levels.

If payments to financial intermediaries by the distributor or adviser for a particular mutual fund complex exceed payments by other mutual fund complexes, your financial advisor and the financial intermediary employing him or her may have an incentive to recommend that fund complex over others. Please speak with your financial advisor to learn more about the total amounts paid to your financial advisor and his or her firm by SSGA FD and its affiliates, and by sponsors of other mutual funds he or she may recommend to you. You should also consult disclosures made by your financial intermediary at the time of purchase.

Set forth below is a list of those financial intermediaries to which SSGA FD (and its affiliates) expects, as of April 30, 2021, to pay compensation in the manner described in this “Payments to Financial Intermediaries” section. This list may change over time. Please contact your financial intermediary to determine whether it or its affiliate currently may be receiving such compensation and to obtain further information regarding any such compensation.

Ropes & Gray LLP serves as counsel to the Trust. The principal business address of Ropes & Gray LLP is 800 Boylston Street, Boston, Massachusetts 02199. Sullivan & Worcester LLP, located at One Post Office Square, Boston, Massachusetts 02109, serves as independent counsel to the Independent Trustees.

[ ] serves as the independent registered public accounting firm for the Trust and provides (i) audit services and (ii) tax services. In connection with the audit of the 2020 financial statements, the Trust entered into an engagement agreement with [ ] that sets forth the terms of [ ] audit engagement. The principal business address of [ ] is [ ].

The following persons serve as the portfolio managers of the Fund as of the date of this SAI. The following table lists the number and types of accounts managed and assets under management in those accounts as of September 30, 2021:

The Fund had not commenced operations prior to the date of this SAI and therefore the portfolio managers did not beneficially own any Shares.

A portfolio manager that has responsibility for managing more than one account may be subject to potential conflicts of interest because he or she is responsible for other accounts in addition to the Fund. Those conflicts could include preferential treatment of one account over others in terms of: (a) the portfolio manager’s execution of different investment strategies for various accounts; or (b) the allocation of resources or of investment opportunities. Portfolio managers may manage numerous accounts for multiple clients. These accounts may include registered

investment companies, other types of pooled accounts (e.g., collective investment funds), and separate accounts (i.e., accounts managed on behalf of individuals or public or private institutions). Portfolio managers make investment decisions for each account based on the investment objectives and policies and other relevant investment considerations applicable to that portfolio.

A potential conflict of interest may arise as a result of the portfolio managers’ responsibility for multiple accounts with similar investment guidelines. Under these circumstances, a potential investment may be suitable for more than one of the portfolio managers’ accounts, but the quantity of the investment available for purchase is less than the aggregate amount the accounts would ideally devote to the opportunity. Similar conflicts may arise when multiple accounts seek to dispose of the same investment. The portfolio managers may also manage accounts whose objectives and policies differ from that of the Fund. These differences may be such that under certain circumstances, trading activity appropriate for one account managed by the portfolio manager may have adverse consequences for another account managed by the portfolio manager. For example, an account may sell a significant position in a security, which could cause the market price of that security to decrease, while the Fund maintained its position in that security.

A potential conflict may arise when the portfolio managers are responsible for accounts that have different advisory fees – the difference in fees could create an incentive for the portfolio manager to favor one account over another, for example, in terms of access to investment opportunities. This conflict may be heightened if an account is subject to a performance-based fee, as applicable. Another potential conflict may arise when the portfolio manager has an investment in one or more accounts that participate in transactions with other accounts. His or her investment(s) may create an incentive for the portfolio manager to favor one account over another. The Adviser has adopted policies and procedures reasonably designed to address these potential material conflicts. For instance, portfolio managers are normally responsible for all accounts within a certain investment discipline and do not, absent special circumstances, differentiate among the various accounts when allocating resources. Additionally, the Adviser and its advisory affiliates have processes and procedures for allocating investment opportunities among portfolios that are designed to provide a fair and equitable allocation.

SSGA’s culture is complemented and reinforced by a total rewards strategy that is based on a pay for performance philosophy which seeks to offer a competitive pay mix of base salary, benefits, cash incentives and deferred compensation.

Salary is based on a number of factors, including external benchmarking data and market trends, State Street performance, SSGA performance, and individual overall performance. SSGA’s Global Human Resources department regularly participates in compensation surveys in order to provide SSGA with market-based compensation information that helps support individual pay decisions.

Additionally, subject to State Street and SSGA business results, State Street allocates an incentive pool to SSGA to reward its employees. The size of the incentive pool for most business units is based on the firm’s overall profitability and other factors, including performance against risk-related goals. For most SSGA investment teams, SSGA recognizes and rewards performance by linking annual incentive decisions for investment teams to the firm’s or business unit’s profitability and business unit investment performance over a multi-year period.

Incentive pool funding for most active investment teams is driven in part by the post-tax investment performance of fund(s) managed by the team versus the return levels of the benchmark index(es) of the fund(s) on a one-, three- and, in some cases, five-year basis. For most active investment teams, a material portion of incentive compensation for senior staff is deferred over a four-year period into the SSGA Long-Term Incentive (“SSGA LTI”) program. For these teams, The SSGA LTI program indexes the performance of these deferred awards against the post-tax investment performance of fund(s) managed by the team. This is intended to align our investment team’s compensation with client interests, both through annual incentive compensation awards and through the long-term value of deferred awards in the SSGA LTI program.

For the passive equity investment team, incentive pool funding is driven in part by the post-tax 1 and 3-year tracking error of the funds managed by the team against the benchmark indexes of the funds.

The discretionary allocation of the incentive pool to the business units within SSGA is influenced by market-based compensation data, as well as the overall performance of each business unit. Individual compensation decisions are made by the employee’s manager, in conjunction with the senior management of the employee’s business unit. These decisions are based on the overall performance of the employee and, as mentioned above, on the performance of the firm and business unit. Depending on the job level, a portion of the annual incentive may be awarded in deferred compensation, which may include cash and/or Deferred Stock Awards (State Street stock), which typically vest over a four-year period. This helps to retain staff and further aligns SSGA employees’ interests with SSGA clients’ and shareholders’ long-term interests.

All portfolio transactions are placed on behalf of the Fund by the Adviser. Purchases and sales of securities on a securities exchange are affected through brokers who charge a commission for their services. Ordinarily commissions are not charged on over the counter orders (e.g., fixed income securities) because the Fund pays a spread which is included in the cost of the security and represents the difference between the dealer’s quoted price at which it is willing to sell the security and the dealer’s quoted price at which it is willing to buy the security. When the Fund executes an over the counter order with an electronic communications network or an alternative trading system, a commission is charged because electronic communications networks and alternative trading systems execute such orders on an agency basis. Securities may be purchased from underwriters at prices that include underwriting fees.

In placing a portfolio transaction, the Adviser seeks to achieve best execution. The Adviser’s duty to seek best execution requires the Adviser to take reasonable steps to obtain for the client as favorable an overall result as possible for Fund portfolio transactions under the circumstances, taking into account various factors that are relevant to the particular transaction.

The Adviser refers to and selects from the list of approved trading counterparties maintained by the Adviser’s Credit Risk Management team. In selecting a trading counterparty for a particular trade, the Adviser seeks to weigh relevant factors including, but not limited to the following:

In selecting a trading counterparty, the price of the transaction and costs related to the execution of the transaction typically merit a high relative importance, depending on the circumstances. The Adviser does not necessarily select a trading counterparty based upon price and costs but may take other relevant factors into account if it believes that these are important in taking reasonable steps to obtain the best possible result for the Fund under the circumstances. Consequently, the Adviser may cause a client to pay a trading counterparty more than another trading counterparty might have charged for the same transaction in recognition of the value and quality of the brokerage services provided. The following matters may influence the relative importance that the Adviser places upon the relevant factors:

The process by which trading counterparties are selected to effect transactions is designed to exclude consideration of the sales efforts conducted by broker-dealers in relation to the Fund.

The brokerage commissions paid by the Fund for the last three fiscal years have been omitted because the Fund had not commenced investment operations as of December 31, 2020.

Capitalization. Under the Declaration of Trust, the Trustees are authorized to issue an unlimited number of shares of the Fund. Upon liquidation or dissolution of the Fund, investors are entitled to share pro rata in the Fund’s net assets available for distribution to its investors. Investments in the Fund have no preference, preemptive, conversion or similar rights, except as determined by the Trustees or as set forth in the Bylaws, and are fully paid and non-assessable, except as set forth below.

Declaration of Trust. The Declaration of Trust of the Trust provides that the Trust may redeem shares of the Fund at the redemption price that would apply if the share redemption were initiated by a shareholder. It is the policy of the Trust that, except upon such conditions as may from time to time be set forth in the then current prospectus of the Trust or to facilitate the Trust’s or the Fund’s compliance with applicable law or regulation, the Trust would not initiate a redemption of shares unless it were to determine that failing to do so may have a substantial adverse consequence for the Fund or the Trust.

The Trust’s Declaration of Trust provides that a Trustee who is not an “interested person” (as defined in the 1940 Act) of the Trust will be deemed independent and disinterested with respect to any demand made in connection with a derivative action or proceeding. It is the policy of the Trust that it will not assert that provision to preclude a shareholder from claiming that a trustee is not independent or disinterested with respect to any demand made in connection with a derivative action or proceeding; provided, however, that the foregoing policy will not prevent the Trust from asserting applicable law (including Section 2B of Chapter 182 of the Massachusetts General Laws) to preclude a shareholder from claiming that a trustee is not independent or disinterested with respect to any demand made in connection with a derivative action or proceeding.

The Trust will not deviate from the foregoing policies in a manner that adversely affects the rights of shareholders of the Fund without the approval of “a vote of a majority of the outstanding voting securities” (as defined in the 1940 Act) of such Fund.

Voting. Each investor is entitled to a vote in proportion to the number of Fund shares it owns. Shares do not have cumulative voting rights in the election of Trustees, and investors holding more than 50% of the aggregate outstanding shares in the Trust may elect all of the Trustees if they choose to do so. The Trust is not required and has no current intention to hold annual meetings of investors but the Trust will hold special meetings of shareholders when in the judgment of the Trustees it is necessary or desirable to submit matters for a shareholder vote.

Massachusetts Business Trust. Under Massachusetts law, shareholders in a Massachusetts business trust could, under certain circumstances, be held personally liable for the obligations of the trust. However, the Declaration of Trust disclaims shareholder liability for acts or obligations of the Trust and provides for indemnification out of the property of the applicable series of the Trust for any loss to which the shareholder may become subject by reason of being or having been a shareholder of that series and for reimbursement of the shareholder for all expense arising from such liability. Thus the risk of a shareholder incurring financial loss on account of shareholder liability should be limited to circumstances in which the series would be unable to meet its obligations.

The price per share of the Fund is determined each business day (unless otherwise noted) at the close of the New York Stock Exchange (“NYSE”) (ordinarily 4:00 p.m. Eastern time).

Pricing of shares of the Fund does not occur on New York Stock Exchange (“NYSE”) holidays. The NYSE is open for trading every weekday except for: (a) the following holidays: New Year’s Day, Martin Luther King, Jr.’s Birthday, Washington’s Birthday (the third Monday in February), Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas; and (b) the preceding Friday or the subsequent Monday when one of the calendar-determined holidays falls on a Saturday or Sunday, respectively. Purchases and withdrawals will be effected at the time of determination of NAV next following the receipt of any purchase or withdrawal order which is determined to be in good order.

The Fund’s securities will be valued pursuant to guidelines established by the Board of Trustees.

The following discussion of U.S. federal income tax consequences of an investment in the Fund is based on the Code, U.S. Treasury regulations, and other applicable authority, as of the date of this SAI. These authorities are subject to change by legislative or administrative action, possibly with retroactive effect. The following discussion is only a summary of some of the important U.S. federal income tax considerations generally applicable to investments in the Fund. There may be other tax considerations applicable to particular shareholders. Shareholders should consult their own tax advisors regarding their particular situation and the possible application of foreign, state and local tax laws.

Special tax rules apply to investments through defined contribution plans and other tax-qualified plans or tax-advantaged arrangements. Shareholders should consult their tax advisers to determine the suitability of shares of the Fund as an investment through such plans and arrangements and the precise effect of an investment on their particular tax situations.

The Fund has elected to be treated as a regulated investment company (“RIC”) under Subchapter M of the Code and intends each year to qualify and be eligible to be treated as such. In order to qualify for the special tax treatment accorded RICs and their shareholders, the Fund must, among other things, (a) derive at least 90% of its gross income for each taxable year from (i) dividends, interest, payments with respect to certain securities loans, gains from the

sale of securities or foreign currencies, or other income (including but not limited to gains from options, futures or forward contracts) derived with respect to its business of investing in such stock, securities or currencies and (ii) net income derived from interests in “qualified publicly traded partnerships” (as defined below); (b) diversify its holdings so that, at the end of each quarter of the Fund’s taxable year, (i) at least 50% of the value of the Fund’s total assets consists of cash and cash items, U.S. Government securities, securities of other RICs, and other securities limited in respect of any one issuer to a value not greater than 5% of the value of the Fund’s total assets and no more than 10% of the outstanding voting securities of such issuer, and (ii) no more than 25% of its assets are invested, including through corporations in which the Fund owns a 20% or more voting stock interest, (x) in the securities (other than those of the U.S. Government or other RICs) of any one issuer or of two or more issuers which the Fund controls and which are engaged in the same, similar or related trades and businesses, or (y) in the securities of one or more qualified publicly traded partnerships (as defined below); and (c) distribute with respect to each taxable year at least 90% of the sum of its investment company taxable income (as that term is defined in the Code without regard to the deduction for dividends paid — generally taxable ordinary income and the excess, if any, of net short-term capital gains over net long-term capital losses) and net tax-exempt income, for such year.

In general, for purposes of the 90% gross income requirement described in (a) above, income derived from a partnership will be treated as qualifying income only to the extent such income is attributable to items of income of the partnership which would be qualifying income if realized directly by the RIC. However, 100% of the net income derived from an interest in a “qualified publicly traded partnership” (a partnership (x) the interests in which are traded on an established securities market or are readily tradable on a secondary market or the substantial equivalent thereof, and (y) that derives less than 90% of its income from the qualifying income described in section (a)(i) of the preceding paragraph), will be treated as qualifying income. In general, such entities will be treated as partnerships for federal income tax purposes, because they meet the passive income requirement under Code section 7704(c)(2). Further, although in general the passive loss rules of the Code do not apply to RICs, such rules do apply to a RIC with respect to items attributable to an interest in a qualified publicly traded partnership.

For purposes of the diversification test in (b) above, the term “outstanding voting securities of such issuer” will include the equity securities of a qualified publicly traded partnership. Also, for purposes of the diversification test in (b) above, the identification of the issuer (or, in some cases, issuers) of a particular investment can depend on the terms and conditions of that investment. In some cases, identification of the issuer (or issuers) is uncertain under current law, and an adverse determination or future guidance by the Internal Revenue Service (“IRS”) with respect to issuer identification for a particular type of investment may adversely affect the Fund’s ability to meet the diversification test in (b) above.

If the Fund qualifies as a RIC that is accorded special tax treatment, the Fund will not be subject to federal income tax on income or gains distributed in a timely manner to its shareholders in the form of dividends (including Capital Gain Dividends, as defined below). If the Fund were to fail to meet the income, diversification or distribution test described above, the Fund could in some cases cure such failure, including by paying a Fund-level tax, paying interest or disposing of certain assets. If such Fund were ineligible to or otherwise did not cure such failure for any year, or if such Fund were otherwise to fail to qualify as a RIC accorded special tax treatment in any taxable year, the Fund would be subject to tax at the Fund level on its taxable income at corporate rates, and all distributions from earnings and profits, including any distributions of net tax-exempt income (if any) and net capital gains (as defined below), would be taxable to shareholders as ordinary income. Some portions of such distributions may be eligible for the dividends-received deduction in the case of corporate shareholders and may be eligible to be treated as “qualified dividend income” in the case of shareholders taxed as individuals, provided, in both cases, the shareholder meets certain holding period and other requirements in respect of the Fund’s shares (each as described below). In addition, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest and make substantial distributions before re-qualifying as a RIC that is accorded special tax treatment.

The Fund intends to distribute at least annually to its shareholders all or substantially all of its investment company taxable income (computed without regard to the dividends-paid deduction) and its net tax-exempt income (if any), and may distribute its net capital gain (that is, the excess of net long-term capital gain over net short-term capital loss, in each case determined with reference to any loss carryforwards). Any taxable income retained by the Fund will be subject to tax at the Fund level at regular corporate rates. If the Fund retains any net capital gain, it will be subject to tax at regular corporate rates on the amount retained, but is permitted to designate the retained amount as undistributed capital gain in a timely notice to its shareholders who (a) will be required to include in income for

federal income tax purposes, as long-term capital gain, their shares of such undistributed amount, and (b) will be entitled to credit their proportionate shares of the tax paid by the Fund on such undistributed amount against their federal income tax liabilities, if any, and to claim refunds on a properly-filed U.S. tax return to the extent the credit exceeds such liabilities. If the Fund makes this designation, for U.S. federal income tax purposes, the tax basis of shares owned by a shareholder of the Fund will be increased by an amount equal to the difference between the amount of undistributed capital gains included in the shareholder’s gross income under clause (a) of the preceding sentence and the tax deemed paid by the shareholder under clause (b) of the preceding sentence. The Fund is not required to, and there can be no assurance the Fund will, make this designation if it retains all or a portion of its net capital gain in a taxable year.

In determining its net capital gain, including in connection with determining the amount available to support a Capital Gain Dividend (as defined below), its taxable income, and its earnings and profits, a RIC generally may elect to treat part or all of any post-October capital loss (defined as any net capital loss attributable to the portion, if any, of the taxable year after October 31 or, if there is no such loss, the net long-term capital loss or net short-term capital loss attributable to any such portion of the taxable year) or late-year ordinary loss (generally, the sum of its (i) net ordinary loss, if any, from the sale, exchange or other taxable disposition of property, attributable to the portion, if any, of the taxable year after October 31, and its (ii) other net ordinary loss, if any, attributable to the portion, if any, of the taxable year after December 31) as if incurred in the succeeding taxable year.

If the Fund were to fail to distribute in a calendar year at least an amount equal, in general, to the sum of 98% of its ordinary income for such year and 98.2% of its capital gain net income for the one-year period ending October 31 of such year (or November 30 or December 31, if the Fund is eligible to elect and so elects), plus any such amounts retained from the prior year, the Fund would be subject to a nondeductible 4% excise tax on the undistributed amounts. For purposes of the required excise tax distribution, a RIC’s ordinary gains and losses from the sale, exchange or other taxable disposition of property that would otherwise be taken into account after October 31 of a calendar year (or November 30, if the Fund makes the election referred to above) generally are treated as arising on January 1 of the following calendar year; in the case of the Fund with a December 31 year end that makes the election described above, no such gains or losses will be so treated. Also, for these purposes, the Fund will be treated as having distributed any amount on which it is subject to corporate income tax for the taxable year ending within the calendar year. The Fund intends generally to make distributions sufficient to avoid imposition of the excise tax, although there can be no assurance that it will be able to do so. Distributions declared by the Fund during October, November and December to shareholders of record on a date in any such month and paid by the Fund during the following January will be treated for federal tax purposes as paid by the Fund and received by shareholders on December 31 of the year in which declared.

Capital losses in excess of capital gains (“net capital losses”) are not permitted to be deducted against the Fund’s net investment income. Instead, potentially subject to certain limitations, the Fund may carry net capital losses from any taxable year forward to subsequent taxable years to offset capital gains, if any, realized during such subsequent taxable years. Distributions from capital gains are generally made after applying any available capital loss carryforwards. Capital loss carryforwards are reduced to the extent they offset current-year net realized capital gains, whether the Fund retains or distributes such gains. The Fund may carry net capital losses forward to one or more subsequent taxable years without expiration; any such carryforward losses will retain their character as short-term or long-term. The Fund must apply such carryforwards first against gains of the same character. See the Fund’s most recent annual shareholder report for the Fund’s available capital loss carryovers as of the end of its most recently ended fiscal year.

For U.S. federal income tax purposes, distributions of investment income are generally taxable to shareholders as ordinary income. Taxes on distributions of capital gains are determined by how long the Fund owned (or is deemed to have owned) the investments that generated them, rather than how long a shareholder has owned his or her Fund shares. In general, the Fund will recognize long-term capital gain or loss on the disposition of assets the Fund has owned (or is deemed to have owned) for more than one year, and short-term capital gain or loss on the disposition of investments the Fund has owned (or is deemed to have owned) for one year or less. Distributions of net-capital gain (that is, the excess of net long-term capital gain over net short-term capital loss) that are properly reported by the Fund as capital gain dividends (“Capital Gain Dividends”) generally will be taxable to a shareholder receiving such distributions as long-term capital gains includible in net capital gain and taxed to individuals at reduced rates relative

to ordinary income. Distributions from capital gains are generally made after applying any available capital loss carryovers. The IRS and the Department of the Treasury have issued regulations that impose special rules in respect of Capital Gain Dividends received through partnership interests constituting “applicable partnership interests” under Section 1061 of the Code. Distributions of net short-term capital gain (as reduced by any net long-term capital loss for the taxable year) will be taxable to shareholders as ordinary income. [Distributions of investment income properly reported by the Fund as derived from “qualified dividend income” will be taxed in the hands of individuals at the rates applicable to net capital gain, provided holding period and other requirements are met at each of the shareholder and the Fund level.]

The Code generally imposes a 3.8% Medicare contribution tax on the net investment income of certain individuals, trusts and estates to the extent their income exceeds certain threshold amounts. For these purposes, “net investment income” generally includes, among other things, (i) distributions paid by the Fund of net investment income and capital gains, and (ii) any net gain from the sale, redemption, exchange or other taxable disposition of Fund shares. Shareholders are advised to consult their tax advisors regarding the possible implications of this additional tax on their investment in the Fund.

If the Fund makes a distribution to a shareholder in excess of the Fund’s current and accumulated earnings and profits in any taxable year, the excess distribution will be treated as a return of capital to the extent of such shareholder’s tax basis in its shares, and thereafter as capital gain. A return of capital is not taxable, but it reduces a shareholder’s tax basis in its shares, thus reducing any loss or increasing any gain on a subsequent taxable disposition by the shareholder of its shares.

Shareholders of the Fund will be subject to federal income taxes as described herein on distributions made by the Fund whether received in cash or reinvested in additional shares of the Fund.

Distributions with respect to the Fund’s shares are generally subject to U.S. federal income tax as described herein to the extent they do not exceed the Fund’s realized income and gains, even though such distributions may economically represent a return of a particular shareholder’s investment. Such distributions are likely to occur in respect of shares purchased at a time when the Fund’s NAV includes either unrealized gains, or realized but undistributed income or gains that were therefore included in the price the shareholder paid. Such distributions may reduce the fair market value of the Fund’s shares below the shareholder’s cost basis in those shares. As described above, the Fund is required to distribute realized income and gains regardless of whether the Fund’s NAV also reflects unrealized losses.

In order for some portion of the dividends received by the Fund shareholder to be “qualified dividend income,” the Fund must meet holding period and other requirements with respect to the dividend-paying stocks held by the Fund and the shareholder must meet holding period and other requirements with respect to the Fund’s shares. In general, a dividend will not be treated as qualified dividend income (a) if the dividend is received with respect to any share of stock held for fewer than 61 days during the 121-day period beginning on the date which is 60 days before the date on which such share becomes ex-dividend with respect to such dividend (or, in the case of certain preferred stock, 91 days during the 181-day period beginning 90 days before such date), (b) to the extent that the recipient is under an obligation (whether pursuant to a short sale or otherwise) to make related payments with respect to positions in substantially similar or related property, (c) if the recipient elects to have the dividend income treated as investment income for purposes of the limitation on deductibility of investment interest, or (d) if the dividend is received from a foreign corporation that is (i) not eligible for the benefits of a comprehensive income tax treaty with the United States (with the exception of dividends paid on stock of such a foreign corporation readily tradable on an established securities market in the United States) or (ii) treated as a passive foreign investment company.

In general, distributions of investment income properly reported by the Fund as derived from qualified dividend income will be treated as qualified dividend income in the hands of a shareholder taxed as an individual, provided the shareholder meets the holding period and other requirements described above with respect to the Fund’s shares. If the aggregate qualified dividends received by the Fund during any taxable year are 95% or more of the Fund’s gross income (excluding net long-term capital gain over net short-term capital loss), then 100% of the Fund’s dividends (other than dividends properly reported as Capital Gain Dividends) will be eligible to be treated as qualified dividend income.

In general, dividends of net investment income received by corporate shareholders of the Fund will qualify for the dividends-received deduction generally available to corporations to the extent of the amount of eligible dividends received by the Fund from domestic corporations. A dividend will not be treated as a dividend eligible for the dividends-received deduction (a) if it has been received with respect to any share of stock that the Fund has held for less than 46 days (91 days in the case of certain preferred stock) during the 91-day period beginning on the date which is 45 days before the date on which such share becomes ex-dividend with respect to such dividend (during the 181-day period beginning 90 days before such date in the case of certain preferred stock) or (b) to the extent that the Fund is under an obligation (pursuant to a short sale or otherwise) to make related payments with respect to positions in substantially similar or related property. Finally, the dividends-received deduction may otherwise be disallowed or reduced (x) if the corporate shareholder fails to satisfy the foregoing requirements with respect to its shares of the Fund or (y) by application of various provisions of the Code (for instance, the dividends-received deduction is reduced in the case of a dividend received on debt-financed portfolio stock (generally, stock acquired with borrowed funds)).

Any distribution of income that is attributable to (a) income received by the Fund in lieu of dividends with respect to securities on loan pursuant to a securities lending transaction or (b) dividend income received by the Fund on securities it temporarily purchased from a counterparty pursuant to a repurchase agreement that is treated for U.S. federal income tax purposes as a loan by the Fund, will not constitute qualified dividend income to individual shareholders and will not be eligible for the dividends-received deduction for corporate shareholders.

If the Fund holds, directly or indirectly, one or more “tax credit bonds” issued on or before December 31, 2017, on one or more applicable dates during a taxable year, the Fund may elect to permit its shareholders to claim a tax credit on their income tax returns equal to each shareholder’s proportionate share of tax credits from the bond otherwise allowed to the Fund. In such a case, a shareholder will be deemed to receive a distribution of money with respect to its Fund shares equal to the shareholder’s proportionate share of the amount of such credits and be allowed a credit against the shareholder’s U.S. federal income tax liability equal to the amount of such deemed distribution. A shareholder’s ability to claim a tax credit associated with one or more tax credit bonds may be subject to certain limitations imposed by the Code, and the amount of the tax credits may not exceed the amount reported by the Fund in a written notice to shareholders. Even if the Fund is eligible to pass through tax credits to shareholders, the Fund may choose not to do so.

As required by federal law, detailed federal tax information with respect to each calendar year will be furnished to each shareholder early in the succeeding year.

Special Rules for Debt Obligations. Some debt obligations with a fixed maturity date of more than one year from the date of issuance (and zero-coupon debt obligations with a fixed maturity date of more than one year from the date of issuance) will be treated as debt obligations that are issued originally at a discount. Generally, original issue discount (“OID”) is treated as interest income and is included in the Fund’s income and required to be distributed by the Fund over the term of the debt obligation, even though payment of that amount is not received until a later time, upon partial or full repayment or disposition of the debt obligation. In addition, payment-in-kind obligations will give rise to income which is required to be distributed and is taxable even though the Fund holding the obligation receives no interest payment in cash on the obligation during the year.

Some debt obligations with a fixed maturity date of more than one year from the date of issuance that are acquired in the secondary market by the Fund may be treated as having “market discount.” Very generally, market discount is the excess of the stated redemption price of a debt obligation (or in the case of an obligation issued with OID, its “revised issue price”) over the purchase price of such obligation. Subject to the discussion below regarding Section 451 of the Code, (i) generally, any gain recognized on the disposition of, and any partial payment of principal on, a debt obligation having market discount is treated as ordinary income to the extent the gain, or principal payment, does not exceed the “accrued market discount” on such debt obligation, (ii) alternatively, the Fund may elect to accrue market discount currently, in which case the Fund will be required to include the accrued

market discount in income (as ordinary income) and thus distribute it over the term of the debt obligation, even though payment of that amount is not received until a later time, upon partial or full repayment or disposition of the debt obligation, and (iii) the rate at which the market discount accrues, and thus is included in the Fund’s income, will depend upon which of the permitted accrual methods the Fund elects. Notwithstanding the foregoing, effective for taxable years beginning after 2017, Section 451 of the Code generally requires any accrual method taxpayer to take into account items of gross income no later than the time at which such items are taken into account as revenue in the taxpayer’s financial statements. The IRS and the Department of Treasury issued regulations providing that this rule does not apply to accrued market discount. If this rule were to apply to the accrual of market discount, the Fund would be required to include in income any market discount as it takes the same into account on its financial statements, even if the Fund does not otherwise elect to accrue market discount currently for federal income tax purposes.

If the Fund holds the foregoing kinds of obligations, or other obligations subject to special rules under the Code, the Fund may be required to pay out as an income distribution each year an amount which is greater than the total amount of cash interest the Fund actually received. Such distributions may be made from the cash assets of the Fund or, if necessary, by disposition of portfolio securities including at a time when it may not be advantageous to do so. These dispositions may cause the Fund to realize higher amounts of short-term capital gains (generally taxed to shareholders at ordinary income tax rates) and, in the event the Fund realizes net capital gains from such transactions, its shareholders may receive a larger Capital Gain Dividend than they would have if the Fund had not held such obligations.

A portion of the OID accrued on certain high yield discount obligations may not be deductible to the issuer and will instead be treated as a dividend paid by the issuer for purposes of the dividends-received deduction. In such cases, if the issuer of the high yield discount obligations is a domestic corporation, dividend payments by the Fund may be eligible for the dividends-received deduction to the extent attributable to the deemed dividend portion of such OID.

Securities Purchased at a Premium. Very generally, where the Fund purchases a bond at a price that exceeds the redemption price at maturity — that is, at a premium — the premium is amortizable over the remaining term of the bond. In the case of a taxable bond, if the Fund makes an election applicable to all such bonds it purchases, which election is irrevocable without consent of the IRS, the Fund reduces the current taxable income from the bond by the amortized premium and reduces its tax basis in the bond by the amount of such offset; upon the disposition or maturity of such bonds acquired on or after January 4, 2013, the Fund is permitted to deduct any remaining premium allocable to a prior period.

At-risk or Defaulted Securities. Investments in debt obligations that are at risk of or in default present special tax issues for the Fund. Tax rules are not entirely clear about issues such as when the Fund may cease to accrue interest, OID or market discount; whether, when or to what extent the Fund should recognize market discount on a debt obligation; when and to what extent the Fund may take deductions for bad debts or worthless securities; and how the Fund should allocate payments received on obligations in default between principal and income. These and other related issues will be addressed by the Fund when, as and if it invests in such securities, in order to seek to ensure that it distributes sufficient income to preserve its status as a RIC and does not become subject to U.S. federal income or excise tax.

Certain Investments in REITs. Any investment by the Fund in equity securities of real estate investment trusts qualifying as such under Subchapter M of the Code (“REITs”) may result in the Fund’s receipt of cash in excess of the REIT’s earnings; if the Fund distributes these amounts, these distributions could constitute a return of capital to Fund shareholders for U.S. federal income tax purposes. Dividends received by the Fund from a REIT will not qualify for the corporate dividends-received deduction and generally will not constitute qualified dividend income.

Distributions by the Fund to its shareholders that the Fund properly reports as “section 199A dividends,” as defined and subject to certain conditions described below, are treated as qualified REIT dividends in the hands of non-corporate shareholders. Non-corporate shareholders are permitted a federal income tax deduction equal to 20% of qualified REIT dividends received by them, subject to certain limitations. Very generally, a “section 199A dividend” is any dividend or portion thereof that is attributable to certain dividends received by a RIC from REITs (as defined below), to the extent such dividends are properly reported as such by the RIC in a written notice to its shareholders. A section 199A dividend is treated as a qualified REIT dividend only if the shareholder receiving such dividend holds the dividend-paying RIC shares for at least 46 days of the 91-day period beginning 45 days before the shares become ex-dividend, and is not under an obligation to make related payments with respect to a position in substantially similar or related property. The Fund is permitted to report such part of its dividends as section 199A dividends as are eligible, but is not required to do so.

Certain Investments in Mortgage Pooling Vehicles. The Fund may invest directly or indirectly in residual interests in real estate mortgage investment conduits (“REMICs”) (including by investing in residual interests in collateralized mortgage obligations (“CMOs”) with respect to which an election to be treated as a REMIC is in effect) or equity interests in taxable mortgage pools (“TMPs”). Under a notice issued by the IRS in October 2006 and Treasury regulations that have yet to be issued but may apply retroactively, a portion of the Fund’s income (including income allocated to the Fund from certain pass-through entities) that is attributable to a residual interest in a REMIC or an equity interest in a TMP (referred to in the Code as an “excess inclusion”) will be subject to U.S. federal income tax in all events. This notice also provides, and the regulations are expected to provide, that excess inclusion income of a RIC, such as the Fund, will be allocated to shareholders of the RIC in proportion to the dividends received by such shareholders, with the same consequences as if the shareholders held the related interest directly. As a result, a RIC investing in such securities may not be a suitable investment for charitable remainder trusts, as noted below.

In general, excess inclusion income allocated to shareholders (i) cannot be offset by net operating losses (subject to a limited exception for certain thrift institutions), (ii) will constitute unrelated business taxable income (“UBTI”) to entities (including a qualified pension plan, an individual retirement account, a 401(k) plan, a Keogh plan or other tax-exempt entity) subject to tax on UBTI, thereby potentially requiring such an entity that is allocated excess inclusion income, and that otherwise might not be required to file a tax return, to file a tax return and pay tax on such income, and (iii) in the case of a foreign shareholder will not qualify for any reduction in U.S. federal withholding tax. A shareholder will be subject to U.S. federal income tax on such inclusions notwithstanding any exemption from such income tax otherwise available under the Code.

Foreign Currency Transactions. Any transaction by the Fund in foreign currencies, foreign currency-denominated debt obligations or certain foreign currency options, futures contracts or forward contracts (or similar instruments) may give rise to ordinary income or loss to the extent such income or loss results from fluctuations in the value of the foreign currency concerned. Any such net gains could require a larger dividend toward the end of the calendar year. Any such net losses will generally reduce and potentially require the recharacterization of prior ordinary income distributions. Such ordinary income treatment may accelerate the Fund’s distributions to shareholders and increase the distributions taxed to shareholders as ordinary income. Any net ordinary losses so created cannot be carried forward by the Fund to offset income or gains earned in subsequent taxable years.

Passive Foreign Investment Companies. Equity investments by the Fund in certain “passive foreign investment companies” (“PFICs”) could potentially subject the Fund to a U.S. federal income tax (including interest charges) on distributions received from the company or on proceeds received from the disposition of shares in the company. This tax cannot be eliminated by making distributions to Fund shareholders. However, the Fund may elect to avoid the imposition of that tax. For example, the Fund may elect to treat a PFIC as a “qualified electing fund” (i.e., make a “QEF election”), in which case the Fund will be required to include its share of the PFIC’s income and net capital gains annually, regardless of whether it receives any distribution from the PFIC. The Fund also may make an election to mark the gains (and to a limited extent losses) in such holdings “to the market” as though it had sold (and, solely for purposes of this mark-to-market election, repurchased) its holdings in those PFICs on the last day of the Fund’s taxable year. Such gains and losses are treated as ordinary income and loss. The QEF and mark-to-market elections may accelerate the recognition of income (without the receipt of cash) and increase the amount required to be distributed by the Fund to avoid taxation. Either of these elections therefore may require the Fund to liquidate other investments (including when it is not advantageous to do so) to meet its distribution requirement, which also may accelerate the recognition of gain and affect the Fund’s total return. Dividends paid by PFICs will not be eligible to be treated as “qualified dividend income.”

Because it is not always possible to identify a foreign corporation as a PFIC, the Fund may incur the tax and interest charges described above in some instances.

Options and Futures. In general, option premiums received by the Fund are not immediately included in the income of the Fund. Instead, the premiums are recognized when the option contract expires, the option is exercised by the holder, or the Fund transfers or otherwise terminates the option (e.g., through a closing transaction). If a call option written by the Fund is exercised and the Fund sells or delivers the underlying stock, the Fund generally will

recognize capital gain or loss equal to (a) the sum of the strike price and the option premium received by the Fund minus (b) the Fund’s basis in the stock. Such gain or loss generally will be short-term or long-term depending upon the holding period of the underlying stock. If securities are purchased by the Fund pursuant to the exercise of a put option written by it, the Fund generally will subtract the premium received for purposes of computing its cost basis in the securities purchased. Gain or loss arising in respect of a termination of the Fund’s obligation under an option other than through the exercise of the option will be short-term gain or loss depending on whether the premium income received by the Fund is greater or less than the amount paid by the Fund (if any) in terminating the transaction. Thus, for example, if an option written by the Fund expires unexercised, the Fund generally will recognize short-term gain equal to the premium received.

The Fund’s options activities may include transactions constituting straddles for U.S. federal income tax purposes, that is, that trigger the U.S. federal income tax straddle rules contained primarily in Section 1092 of the Code. Such straddles include, for example, positions in a particular security, or an index of securities, and one or more options that offset the former position, including options that are “covered” by the Fund’s long position in the subject security. Very generally, where applicable, Section 1092 requires (i) that losses be deferred on positions deemed to be offsetting positions with respect to “substantially similar or related property,” to the extent of unrealized gain in the latter, and (ii) that the holding period of such a straddle position that has not already been held for the long-term holding period be terminated and begin anew once the position is no longer part of a straddle. Options on single stocks that are not “deep in the money” may constitute qualified covered calls, which generally are not subject to the straddle rules; the holding period on stock underlying qualified covered calls that are “in the money” although not “deep in the money” will be suspended during the period that such calls are outstanding. Thus, the straddle rules and the rules governing qualified covered calls could cause gains that would otherwise constitute long-term capital gains to be treated as short-term capital gains, and distributions that would otherwise constitute “qualified dividend income” or qualify for the dividends-received deduction to fail to satisfy the holding period requirements and therefore to be taxed as ordinary income or fail to qualify for the dividends-received deduction, as the case may be.

The tax treatment of certain positions entered into by the Fund, including regulated futures contracts, certain foreign currency positions and certain listed non-equity options, will be governed by section 1256 of the Code (“section 1256 contracts”). Gains or losses on section 1256 contracts generally are considered 60% long-term and 40% short-term capital gains or losses (“60/40”), although certain foreign currency gains and losses from such contracts may be treated as ordinary in character. Also, section 1256 contracts held by the Fund at the end of each taxable year (and, for purposes of the 4% excise tax, on certain other dates as prescribed under the Code) are “marked to market” with the result that unrealized gains or losses are treated as though they were realized and the resulting gain or loss is treated as ordinary or 60/40 gain or loss, as applicable.

Derivatives, Hedging, and Related Transactions. In addition to the special rules described above in respect of futures and options transactions, the Fund’s transactions in other derivative instruments (e.g., forward contracts and swap agreements), as well as any of its hedging, short sale, securities loan or similar transactions, may be subject to one or more special tax rules (e.g., notional principal contract, straddle, constructive sale, wash sale and short sale rules). These rules may affect whether gains and losses recognized by the Fund are treated as ordinary or capital, accelerate the recognition of income or gains to the Fund, defer losses to the Fund, and cause adjustments in the holding periods of the Fund’s securities, thereby affecting whether capital gains and losses are treated as short-term or long-term. These rules could therefore affect the amount, timing and/or character of distributions to shareholders.

Because these and other tax rules applicable to these types of transactions are in some cases uncertain under current law, an adverse determination or future guidance by the IRS with respect to these rules (which determination or guidance could be retroactive) may affect whether the Fund has made sufficient distributions, and otherwise satisfied the relevant requirements, to maintain its qualification as a RIC and avoid the Fund-level tax.

Commodity-Linked Instruments. The Fund’s direct or indirect investments in commodities and commodity-linked instruments can be limited by the Fund’s intention to qualify as a RIC, and can bear on the Fund’s ability to so qualify. Income and gains from commodities and certain commodity-linked instruments does not constitute qualifying income to a RIC for purposes of the 90% gross income test described above. The tax treatment of some other commodity-linked instruments in which the Fund might invest is not certain, in particular with respect to whether income or gains from such instruments constitute qualifying income to a RIC. If the Fund were to treat income or gain from a particular instrument as qualifying income and the income or gain were later determined not to constitute qualifying income and, together with any other nonqualifying income, caused the Fund’s nonqualifying income to exceed 10% of its gross income in any taxable year, the Fund would fail to qualify as a RIC unless it is eligible to and does pay a tax at the Fund level.

Book-Tax Differences. Certain of the Fund’s investments in derivative instruments and foreign currency-denominated instruments, and any of the Fund’s transactions in foreign currencies and hedging activities, are likely to produce a difference between its book income and the sum of its taxable income and net tax-exempt income (if any). If such a difference arises, and the Fund’s book income is less than the sum of its taxable income and net tax-exempt income, the Fund could be required to make distributions exceeding book income to qualify as a RIC that is accorded special tax treatment and to avoid an entity-level tax. In the alternative, if the Fund’s book income exceeds the sum of its taxable income (including realized capital gains) and net tax-exempt income, the distribution (if any) of such excess generally will be treated as (i) a dividend to the extent of the Fund’s remaining earnings and profits (including earnings and profits arising from tax-exempt income), (ii) thereafter, as a return of capital to the extent of the recipient’s basis in its shares, and (iii) thereafter as gain from the sale or exchange of a capital asset.

The Fund’s income, proceeds and gains from sources within foreign countries may be subject to non-U.S. withholding or other taxes, which will reduce the yield on those investments. Tax conventions between certain countries and the United States may reduce or eliminate such taxes. It is expected that at the close of the Fund’s taxable year, more than 50% of the assets of the Fund will consist of the securities of foreign corporations. In that case, the Fund may elect to permit shareholders to claim a credit or deduction on their income tax returns for their pro rata portions of qualified taxes paid by the Fund to foreign countries in respect of foreign securities that the Fund has held for at least the minimum period specified in the Code. In such a case, shareholders will include in gross income from foreign sources their pro rata shares of such taxes paid by such Fund. A shareholder’s ability to claim an offsetting foreign tax credit or deduction in respect of foreign taxes paid by the Fund is subject to certain limitations imposed by the Code, which may result in the shareholder’s not receiving a full credit or deduction (if any) for the amount of such taxes. Shareholders who do not itemize on their U.S. federal income tax returns may claim a credit (but not a deduction) for such foreign taxes. Even if the Fund were eligible to make such an election for a given year, it may determine not to do so.

If the Fund does not qualify for or does not make such election, shareholders will not be entitled to claim a credit or deduction with respect to foreign taxes paid by the Fund; in that case the foreign tax will nonetheless reduce the Fund’s taxable income. Shareholders that are not subject to U.S. federal income tax, and those who invest in a Fund through tax-advantaged accounts (including those who invest through individual retirement accounts or other tax-advantaged retirement plans), generally will receive no benefit from any tax credit or deduction passed through by the Fund, if any. Under certain circumstances, if the Fund receives a refund of foreign taxes paid in respect of a prior year, the value of Fund Shares could be affected or any foreign tax credits or deductions passed through to shareholders in respect of the Fund’s foreign taxes for the current year could be reduced.

The Fund generally is required to withhold and remit to the U.S. Treasury a percentage of the taxable distributions and redemption proceeds paid to any individual shareholder who fails to properly furnish the Fund with a correct taxpayer identification number (“TIN”), who has under-reported dividend or interest income, or who fails to certify to the Fund that he or she is not subject to such withholding.

Backup withholding is not an additional tax. Any amounts withheld may be credited against the shareholder’s U.S. federal income tax liability, provided the appropriate information is furnished to the IRS.

Income of a RIC that would be UBTI if earned directly by a tax-exempt entity will not generally constitute UBTI when distributed to a tax-exempt shareholder of the RIC. Notwithstanding this “blocking” effect, a tax-exempt shareholder could realize UBTI by virtue of its investment in the Fund if shares in the Fund constitute debt-financed property in the hands of the tax-exempt shareholder within the meaning of Code Section 514(b).

A tax-exempt shareholder may also recognize UBTI if the Fund recognizes “excess inclusion income” derived from direct or indirect investments in residual interests in REMICS or equity interests in TMPs if the amount of such income recognized by the Fund exceeds the Fund’s investment company taxable income (after taking into account deductions for dividends paid by the Fund).

In addition, special tax consequences apply to charitable remainder trusts (“CRTs”) that invest in RICs that invest directly or indirectly in residual interests in REMICs or equity interests in TMPs. Under legislation enacted in December 2006, a CRT (as defined in section 664 of the Code) that realizes any UBTI for a taxable year must pay an excise tax annually of an amount equal to such UBTI. Under IRS guidance issued in October 2006, a CRT will not recognize UBTI as a result of investing in a RIC that recognizes “excess inclusion income.” Rather, if at any time during any taxable year a CRT (or one of certain other tax-exempt shareholders, such as the United States, a state or political subdivision, or an agency or instrumentality thereof, and certain energy cooperatives) is a record holder of a share in a RIC that recognizes “excess inclusion income,” then the RIC will be subject to a tax on that portion of its “excess inclusion income” for the taxable year that is allocable to such shareholders at the highest federal corporate income tax rate. The extent to which this IRS guidance remains applicable in light of the December 2006 legislation is unclear. To the extent permitted under the 1940 Act, the Fund may elect to specially allocate any such tax to the applicable CRT, or other shareholder, and thus reduce such shareholder’s distributions for the year by the amount of the tax that relates to such shareholder’s interest in the Fund. CRTs are urged to consult their tax advisors concerning the consequences of investing in the Fund.

Redemptions and exchanges of the Fund’s shares are taxable events and, accordingly, shareholders may realize gain or loss on these transactions. In general, any gain or loss realized upon a taxable disposition of shares will be treated as long-term capital gain or loss if the shares have been held for more than 12 months. Otherwise, the gain or loss on the taxable disposition of Fund shares will be treated as short-term capital gain or loss. However, any loss realized upon a taxable disposition of Fund shares held by a shareholder for six months or less will be treated as long-term, rather than short-term, to the extent of any Capital Gain Dividends received (or deemed received) by the shareholder with respect to the shares. Further, all or a portion of any loss realized upon a taxable disposition of Fund shares will generally be disallowed under the Code’s “wash sale” rule if other substantially identical shares are purchased, including by means of dividend reinvestment, within 30 days before or after the disposition. In such a case, the basis of the newly purchased shares will be adjusted to reflect the disallowed loss. Upon the redemption or exchange of shares of a Fund, the Fund or, in the case of shares purchased through a financial intermediary, the financial intermediary may be required to provide you and the IRS with cost basis and certain other related tax information about the Fund shares you redeemed or exchanged. See the Fund’s prospectus for more information.

Under Treasury regulations, if a shareholder recognizes a loss of $2 million or more for an individual shareholder or $10 million or more for a corporate shareholder (or a greater loss over a combination of years), the shareholder must file with the IRS a disclosure statement on IRS Form 8886. Direct shareholders of portfolio securities are in many cases excepted from this reporting requirement, but under current guidance, shareholders of a RIC are not excepted. Future guidance may extend the current exception from this reporting requirement to shareholders of most or all RICs. The fact that a loss is reportable under these regulations does not affect the legal determination of whether the taxpayer’s treatment of the loss is proper. Shareholders should consult their tax advisers to determine the applicability of these regulations in light of their individual circumstances.

Non-U.S. shareholders in the Fund should consult their tax advisors concerning the tax consequences of ownership of shares in the Fund. Distributions by the Fund to shareholders that are not “U.S. persons” within the meaning of the Code ( “foreign shareholders”) properly reported by the Fund as (1) Capital Gain Dividends, (2) short-term capital gain dividends, and (3) interest-related dividends, each as defined and subject to certain conditions described below, generally are not subject to withholding of U.S. federal income tax.

In general, the Code defines (1) “short-term capital gain dividends” as distributions of net short-term capital gains in excess of net long-term capital losses and (2) “interest-related dividends” as distributions from U.S.-source interest income of types similar to those not subject to U.S. federal income tax if earned directly by an individual foreign shareholder, in each case to the extent such distributions are properly reported as such by the Fund in a written notice to shareholders.

The exceptions to withholding for Capital Gain Dividends and short-term capital gain dividends do not apply to (A) distributions to an individual foreign shareholder who is present in the United States for a period or periods aggregating 183 days or more during the year of the distribution and (B) distributions attributable to gain that is treated as effectively connected with the conduct by the foreign shareholder of a trade or business within the United States under special rules regarding the disposition of U.S. real property interests as described below. The exception to withholding for interest-related dividends does not apply to distributions to a foreign shareholder (i) that has not provided a satisfactory statement that the beneficial owner is not a U.S. person, (ii) to the extent that the dividend is attributable to certain interest on an obligation if the foreign shareholder is the issuer or is a 10% shareholder of the issuer, (iii) that is within certain foreign countries that have inadequate information exchange with the United States, or (iv) to the extent the dividend is attributable to interest paid by a person that is a related person of the foreign shareholder and the foreign shareholder is a controlled foreign corporation). If the Fund invests in a RIC that pays such distributions to the Fund, such distributions retain their character as not subject to withholding if properly reported when paid by the Fund to foreign shareholders. A RIC is permitted to report such parts of its dividends as are eligible to be treated as interest-related or short-term capital gain dividends, but is not required to do so. In the case of shares held through an intermediary, the intermediary may withhold even if the Fund reports all or a portion of a payment as an interest-related or short-term capital gain dividend to shareholders.

Foreign shareholders should contact their intermediaries regarding the application of withholding rules to their accounts.

Distributions by the Fund to foreign shareholders other than Capital Gain Dividends, short-term capital gain dividends and interest-related dividends (e.g., dividends attributable to dividend and foreign-source interest income or to short-term capital gains or U.S. source interest income to which the exception from withholding described above does not apply) are generally subject to withholding of U.S. federal income tax at a rate of 30% (or lower applicable treaty rate).

A foreign shareholder is not, in general, subject to U.S. federal income tax on gains (and is not allowed a deduction for losses) realized on the sale of shares of the Fund unless (a) such gain is effectively connected with the conduct of a trade or business carried on by such holder within the United States, (b) in the case of an individual holder, the holder is present in the United States for a period or periods aggregating 183 days or more during the year of the sale and certain other conditions are met, or (c) the special rules relating to gain attributable to the sale or exchange of “U.S. real property interests” (“USRPIs”) apply to the foreign shareholder’s sale of shares of the Fund (as described below).

Foreign shareholders with respect to whom income from the Fund is effectively connected with a trade or business conducted by the foreign person within the United States will in general be subject to U.S. federal income tax on the income derived from the Fund at the graduated rates applicable to U.S. citizens, residents or domestic corporations, whether such income is received in cash or reinvested in shares of the Fund and, in the case of a foreign corporation, may also be subject to a branch profits tax. If a foreign shareholder is eligible for the benefits of a tax treaty, any effectively connected income or gain will generally be subject to U.S. federal income tax on a net basis only if it is also attributable to a permanent establishment maintained by the shareholder in the United States. More generally, foreign shareholders who are residents in a country with an income tax treaty with the United States may obtain different tax results than those described herein, and are urged to consult their tax advisors.

Special rules would apply if the Fund were a qualified investment entity (“QIE”) because it is either a “U.S. real property holding corporation” (“USRPHC”) or would be a USRPHC but for the operation of certain exceptions to the definition thereof. Very generally, a USRPHC is a domestic corporation that holds USRPIs the fair market value of which equals or exceeds 50% of the sum of the fair market values of the corporation’s USRPIs, interests in real property located outside the United States, and other trade or business assets. USRPIs are generally defined as any interest in U.S. real property and any interest (other than solely as a creditor) in a USRPHC or, very generally, an entity that has been a USRPHC in the last five years. The Fund that holds, directly or indirectly, significant interests in REITs may be a USRPHC. Interests in domestically controlled QIEs, including REITs and RICs that are QIEs, not-greater-than-10% interests in publicly traded classes of stock in REITs and not-greater-than-5% interests in

publicly traded classes of stock in RICs generally are not USRPIs, but these exceptions do not apply for purposes of determining whether the Fund is a QIE. If an interest in the Fund were a USRPI, the Fund would be required to withhold U.S. tax on the proceeds of a share redemption by a greater-than-5% foreign shareholder, in which case such foreign shareholder generally would also be required to file U.S. tax returns and pay any additional taxes due in connection with the redemption.

If the Fund were a QIE under a special “look-through” rule, any distributions by the Fund to a foreign shareholder attributable directly or indirectly to (i) distributions received by the Fund from a lower-tier REIT that the Fund is required to treat as USRPI gain in its hands and (ii) gains realized on the disposition of USRPIs by the Fund, would retain their character as gains realized from USRPIs in the hands of the Fund’s foreign shareholders and would be subject to U.S. tax withholding. In addition, such distributions could result in the foreign shareholder being required to file a U.S. tax return and pay tax on the distributions at regular U.S. federal income tax rates. The consequences to a foreign shareholder, including the rate of such withholding and character of such distributions (e.g., as ordinary income or USRPI gain), would vary depending upon the extent of the foreign shareholder’s current and past ownership of the Fund. The Fund generally does not expect that it will be a QIE.

Foreign shareholders of the Fund also may be subject to “wash sale” rules to prevent the avoidance of the tax-filing and –payment obligations discussed above through the sale and repurchase of Fund shares.

Foreign shareholders should consult their tax advisers and, if holding shares through intermediaries, their intermediaries, concerning the application of these rules to their investment in the Fund.

In order for a foreign shareholder to qualify for any exemptions from withholding described above or from lower withholding tax rates under income tax treaties, or to establish an exemption from back-up withholding, the foreign shareholder must comply with special certification and filing requirements relating to its non-U.S. status (including, in general, furnishing an IRS Form W-8BEN, IRS Form W-8BEN-E or substitute form). Non-U.S. investors in the Fund should consult their tax advisers in this regard.

Special rules (including withholding and reporting requirements) apply to foreign partnerships and those holding Fund shares through foreign partnerships. Additional considerations may apply to foreign trusts and estates. Investors holding Fund shares through foreign entities should consult their tax advisers about their particular situation.

A foreign shareholder may be subject to state and local tax and to the U.S. federal estate tax in addition to the U.S. federal income tax on income referred to above.

Shareholder Reporting Obligations With Respect To Foreign Bank and Financial Accounts

Shareholders that are U.S. persons and own, directly or indirectly, more than 50% of the Fund by vote or value could be required to report annually their “financial interest” in the Fund’s “foreign financial accounts,” if any, on FinCEN Form 114, Report of Foreign Bank and Financial Accounts (“FBAR”). Shareholders should consult a tax advisor, and persons investing in the Fund through an intermediary should contact their intermediary, regarding the applicability to them of this reporting requirement.

Sections 1471-1474 of the Code and the U.S. Treasury and IRS guidance issued thereunder (collectively, “FATCA”) generally require the Fund to obtain information sufficient to identify the status of each of its shareholders under FATCA or under an applicable intergovernmental agreement (an “IGA”) between the United States and a foreign government. If a shareholder fails to provide the requested information or otherwise fails to comply with FATCA or an IGA, the Fund may be required to withhold under FATCA at a rate of 30% with respect to that shareholder on ordinary dividends it pays. The IRS and the Department of Treasury have issued proposed regulations providing that these withholding rules will not apply to the gross proceeds of share redemptions or Capital Gain Dividends the Fund pays. If a payment by the Fund is subject to FATCA withholding, the Fund is required to withhold even if such payment would otherwise be exempt from withholding under the rules applicable to foreign shareholders described above (e.g., short-term capital gain dividends and interest-related dividends).

Each prospective investor is urged to consult its tax adviser regarding the applicability of FATCA and any other reporting requirements with respect to the prospective investor’s own situation, including investments through an intermediary.

The U.S. federal income tax discussion set forth above is for general information only. Prospective investors should consult their tax advisers regarding the specific U.S. federal income tax consequences of purchasing, holding, and disposing of shares of the Fund, as well as the effects of state, local, foreign, and other tax laws and any proposed tax law changes.

SSGA FD serves as the Fund’s distributor pursuant to the Distribution Agreement by and between SSGA FD and the Trust. SSGA FD is not obligated to sell any specific number of shares and will sell shares of the Fund on a continuous basis only against orders to purchase shares. The principal business address of SSGA FD is One Iron Street, Boston, MA 02210.

The Fund had not commenced operations prior to the date of this SAI and therefore does not have financial statements.

The Board of Trustees/Directors of the Trust/Company (each series thereof, a “Fund”) have adopted the following policy and procedures with respect to voting proxies relating to portfolio securities held by the Trust/Company’s investment portfolios.

The policy of the Trust/Company is to delegate the responsibility for voting proxies relating to portfolio securities held by the Trust/Company to SSGA Funds Management, Inc., the Trust/Company’s investment adviser (the “Adviser”), subject to the Trustees/Directors’ continuing oversight.

The right to vote proxies with respect to a portfolio security held by the Trust/Company is an asset of the Trust/Company. The Adviser acts as a fiduciary of the Trust/Company and must vote proxies in a manner consistent with the best interest of the Trust/Company and its shareholders.

A. At least annually, the Adviser shall present to the Boards of Trustees/Directors its policies, procedures and other guidelines for voting proxies (“Policy”) and the policy of any Sub- adviser (as defined below) to which proxy voting authority has been delegated (see Section 9 below). In addition, the Adviser shall notify the Trustees/Directors of material changes to its Policy or the policy of any Sub-adviser promptly and not later than the next regular meeting of the Board of Trustees/Directors after such amendment is implemented.

B. At least annually, the Adviser shall present to the Boards of Trustees/Directors its policy for managing conflicts of interests that may arise through the Adviser’s proxy voting activities. In addition, the Adviser shall report any Policy overrides involving portfolio securities held by a Fund to the Trustees/Directors at the next regular meeting of the Board of Trustees/Directors after such override(s) occur.

C. At least annually, the Adviser shall inform the Trustees/Director that a record is available with respect to each proxy voted with respect to portfolio securities of the Trust/Company during the year. Also see Section 5 below.

The delegation by the Trustees/Directors of the authority to vote proxies relating to portfolio securities of the Trust/Company may be revoked by the Trustees/Directors, in whole or in part, at any time.

The Adviser shall provide the required data for each proxy voted with respect to portfolio securities of the Trust/Company to the Trust/Company or its designated service provider in a timely manner and in a format acceptable to be filed in the Trust/Company’s annual proxy voting report on Form N-PX for the twelve-month period ended June 30. Form N-PX is required to be filed not later than August 31 of each year.

A. In considering whether to retain or continue retaining a particular proxy advisory firm, the Adviser will ascertain whether the proxy advisory firm has the capacity and competency to adequately analyze proxy issues, act as proxy voting agent as requested, and implement the Policy. In this regard, the Adviser will consider, at least annually, among other things, the adequacy and quality of the proxy advisory firm’s staffing and personnel and the robustness of its policies and procedures regarding its ability to identify and address any conflicts of interest. The Adviser shall, at least annually, report to Boards of Trustees/Directors regarding the results of this review.

B. The Adviser will request quarterly and annual reporting from any proxy advisory firm retained by the Adviser, and hold ad hoc meetings with such proxy advisory firm, in order to determine whether there has been any business changes that might impact the proxy advisory firm’s capacity or competency to provide proxy voting advice or services or changes to the proxy advisory firm’s conflicts policies or procedures. The Adviser will also take reasonable steps to investigate any material factual error, notified to the Adviser by the proxy advisory firm or identified by the Adviser, made by the proxy advisory firm in providing proxy voting services.

The Adviser will periodically sample proxy votes to review whether they complied with the Policy. The Adviser shall, at least annually, report to the Boards of Trustees/Directors regarding the frequency and results of the sampling performed.

1. A description of this policy and of the policies and procedures used by the Adviser to determine how to vote proxies relating to portfolio securities; and

1. A statement disclosing that information regarding how the Trust/Company voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge, upon request, by calling the Trust/Company’s toll-free telephone number; or through a specified Internet address; or both; and on the Securities and Exchange Commission’s (the “SEC”) website.

1. A statement disclosing that a description of the policies and procedures used by or on behalf of the Trust/Company to determine how to vote proxies relating to portfolio securities of the Fund is available without charge, upon request, by calling the Trust/Company’s toll-free telephone number; through a specified Internet address, if applicable; and on the SEC’s website; and

2. A statement disclosing that information regarding how the Trust/Company voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge, upon request, by calling the Trust/Company’s toll-free telephone number; or through a specified Internet address; or both; and on the SEC’s website.

For this Fund, the Adviser may retain investment management firms (“Sub-advisers”) to provide day-to-day investment management services to the Fund pursuant to sub-advisory agreements. It is the policy of the Trust/Company that the Adviser may delegate proxy voting authority with respect to a Fund to a Sub-adviser. Pursuant to such delegation, a Sub-adviser is authorized to vote proxies on behalf of the applicable Fund for which it serves as sub-adviser, in accordance with the Sub-adviser’s proxy voting policies and procedures.

The Trustees/Directors shall review this policy to determine its continued sufficiency as necessary from time to time.

See the Statement of Additional Information regarding the Trust’s control relationships.

Under the terms of the Registrant’s Amended and Restated Declaration of Trust, Article VIII, the Registrant is required, subject to certain exceptions and limitations, to indemnify each of its Trustees and officers, including persons who serve at the Registrant’s request as directors, officers or trustees of another organization in which the Registrant has any interest as a shareholder, creditor or otherwise who may be indemnified by the Registrant under the Investment Company Act of 1940, as amended.

Under a separate Indemnification Agreement by and among the Registrant and each Trustee, the Registrant has undertaken to indemnify and advance expenses to each Trustee in a manner consistent with the laws of the Commonwealth of Massachusetts. The Agreement precludes indemnification or advancement of expenses with respect to “disabling conduct” (willful misfeasance, bad faith, gross negligence, or reckless disregard of the duties involved in the conduct of office) and sets forth reasonable and fair means for determining whether indemnification or advancement of expenses shall be made.

Any other business, profession, vocation or employment of a substantial nature in which each director or principal officer of each investment adviser is or has been, at any time during the last two fiscal years, engaged for his or her own account or in the capacity of director, officer, employee, partner or trustee are as follows:

SSGA FM serves as the investment adviser for each series of the Trust. SSGA FM is a wholly-owned subsidiary of State Street Global Advisors, Inc., which is itself a wholly-owned subsidiary of State Street Corporation. SSGA FM and other advisory affiliates of State Street Corporation make up State Street Global Advisors (“SSGA”), the investment management arm of State Street Corporation. The principal address of SSGA FM is One Iron Street, Boston, MA 02210. SSGA FM is an investment adviser registered under the Investment Advisers Act of 1940, as amended.

Below is a list of the directors and principal executive officers of SSGA FM and their principal occupations. Unless otherwise noted, the address of each person listed is One Iron Street, Boston, Massachusetts 02210.

SSGA Europe Limited serves as the sub-adviser to the State Street International Value Spotlight Fund. SSGA Europe Limited is a subsidiary of State Street Corporation. The registered office and principal address of Ireland is 78 Sir John Rogerson’s Quay, Dublin 2, Ireland.

(a) SSGA FD, One Iron Street, Boston, MA 02210, serves as the Trust’s principal underwriter and also serves as the principal underwriter for the following investment companies: State Street Institutional Funds, State Street Variable Insurance Series Funds, Inc., SSGA Funds, SPDR Series Trust, SPDR Index Shares Funds, SSGA Active Trust, State Street Institutional Investment Trust, Elfun Tax-Exempt Income Fund, Elfun Income Fund, Elfun International Equity Fund, Elfun Government Money Market Fund, Elfun Trusts and Elfun Diversified Fund.

(b) To the best of the Registrant’s knowledge, the managers and executive officers of SSGA FD are as follows:

The accounts and records of the Trust are located, in whole or in part, at the office of the Trust and the following locations:

State Street Bank and Trust Company serves as the Sub-Administrator for all Funds and Portfolios.

State Street Bank and Trust Company serves as the Custodian, Transfer Agent and Dividend Disbursing Agent for all Funds, except State Street Bank and Trust Company does not serve as the Transfer Agent/Dividend Disbursing Agent for the State Street Institutional Liquid Reserves Fund, State Street Institutional U.S. Government Money Market Fund, State Street Institutional Treasury Money Market Fund, State Street Institutional Treasury Plus Money Market Fund, State Street Aggregate Bond Index Fund, State Street Equity 500 Index Fund, State Street Global All Cap Equity ex-U.S. Index Fund, State Street Target Retirement 2020 Fund, State Street Target Retirement 2025 Fund, State Street Target Retirement 2030 Fund, State Street Target Retirement 2035 Fund, State Street Target Retirement 2040 Fund, State Street Target Retirement 2045 Fund, State Street Target Retirement 2050 Fund, State Street Target Retirement 2055 Fund, State Street Target Retirement 2060 Fund, State Street Target Retirement 2065 Fund, State Street Target Retirement Fund, State Street International Value Spotlight Fund, State Street Hedged International Developed Equity Index Fund, State Street Small/Mid Cap Equity Index Fund, State Street Emerging Markets Equity Index Fund, State Street Treasury Obligations Money Market Fund, State Street China Equity Select Fund, State Street ESG Liquid Reserves Fund, State Street Income Fund, State Street U.S. Core Equity Fund and State Street Diversified Income Fund.

DST Asset Manager Solutions, Inc. serves as the Transfer Agent/Dividend Disbursing Agent for the State Street Institutional Liquid Reserves Fund, State Street Institutional U.S. Government Money Market Fund, State Street Institutional Treasury Money Market Fund, State Street Institutional Treasury Plus Money Market Fund, State Street Aggregate Bond Index Fund, State Street Equity 500 Index Fund, State Street Global All Cap Equity ex-U.S. Index Fund, State Street Target Retirement 2020 Fund, State Street Target Retirement 2025 Fund, State Street Target Retirement 2030 Fund, State Street Target Retirement 2035 Fund, State Street Target Retirement 2040 Fund, State Street Target Retirement 2045 Fund, State Street Target Retirement 2050 Fund, State Street Target Retirement 2055 Fund, State Street Target Retirement 2060 Fund, State Street Target Retirement 2065 Fund, State Street Target Retirement Fund, State Street International Value Spotlight Fund, State Street Hedged International Developed Equity Index Fund, State Street Small/Mid Cap Equity Index Fund, State Street Emerging Markets Equity Index Fund, State Street Treasury Obligations Money Market Fund, State Street China Equity Select Fund, State Street ESG Liquid Reserves Fund and State Street Diversified Income Fund.

U.S. Bancorp Fund Services, LLC serves as Transfer Agent/Dividend Paying Agent for the State Street Income Fund and State Street U.S. Core Equity Fund.

Pursuant to the requirements of the Securities Act of 1933, as amended (the “1933 Act”), and the Investment Company Act of 1940, as amended, the Registrant, State Street Institutional Investment Trust (the “Trust”), has duly caused this Amendment to the Trust’s Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Boston and Commonwealth of Massachusetts on the 8^th day of October, 2021.

Pursuant to the requirements of the 1933 Act, this Registration Statement for the Trust has been signed below by the following persons in the capacities indicated on the 8^th day of October, 2021:


		*THE SECURITIES ACT OF 1933*		☒
		Post-Effective Amendment No. 285		☒

Online:	www.ssga.com	24 hours a day, 7 days a week
Phone:	(800) 647-7327	Monday – Friday 7:00 am – 5:00 pm EST


General			1
Description of the Fund and Its Investments and Risks			2
Additional Investments and Risks			2
Management of the Trust			28
Proxy Voting Procedures			37
Control Persons and Principal Holders of Securities			37
Investment Advisory and Other Services			37
Portfolio Managers			42
Brokerage Allocation and Other Practices			45
Declaration of Trust, Capital Stock and Other Information			46
Pricing of Shares			47
Taxation of the Fund			47
Underwriter			59
Financial Statements			59
Appendix A - Trust’s Proxy Voting Policy and Procedures			A-1
Appendix B - Adviser’s Proxy Voting Procedures and Guidelines			B-1


NAME, ADDRESS, AND YEAR OF BIRTH	POSITION(S) HELD WITH TRUST	TERM OF OFFICE AND LENGTH OF TIME SERVED	PRINCIPAL OCCUPATION DURING PAST FIVE YEARS AND RELEVANT EXPERIENCE	NUMBER OF FUNDS IN FUND COMPLEX OVERSEEN BY TRUSTEE†	OTHER DIRECTORSHIPS HELD BY TRUSTEE DURING PAST FIVE YEARS
INDEPENDENT TRUSTEES
Michael F. Holland c/o SSGA Funds Management, Inc. One Iron Street Boston, MA 02210 YOB: 1944	Trustee and Co-Chairperson of the Board	Term: Indefinite Elected: 7/99	Chairman, Holland & Company L.L.C. (investment adviser) (1995-present).	[64]	Director, the Holland Series Fund, Inc.; Director, The China Fund, Inc.(1992-2017); Director, The Taiwan Fund, Inc. (2007-2017); Director, Reaves Utility Income Fund, Inc.; and Director, Blackstone/GSO Loans (and Real Estate) Funds.

Patrick J. Riley c/o SSGA Funds Management, Inc. One Iron Street Boston, MA 02210 YOB: 1948	Trustee and Co-Chairperson of the Board	Term: Indefinite Elected: 1/14	2002 to May 2010, Associate Justice of the Superior Court, Commonwealth of Massachusetts; 1985 to 2002, Partner, Riley, Burke & Donahue, L.L.P. (law firm); 1998 to present, Independent Director, State Street Global Advisers Ireland, Ltd. (investment company); 1998 to present, Independent Director, SSGA Liquidity plc (formerly, SSGA Cash Management Fund plc); January 2009 to present, Independent Director, SSGA Fixed Income plc; and January 2009-2019, Independent Director, SSGA Qualified Funds PLC.	[64]	Board Director and Chairman, SPDR Europe 1PLC Board (2011-present); Board Director and Chairman, SPDR Europe II, PLC (2013- present).

John R. Costantino c/o SSGA Funds Management, Inc. One Iron Street Boston, MA 02210 YOB: 1946	Trustee and Co-Chairperson of the Qualified Legal Compliance Committee	Term: Indefinite Elected: 12/18	Senior Advisor to NGN Capital LLC (January 2019 – present); Managing General Partner, NGN Capital LLC (2006 – December 2019).	[64]	Director of Kleinfeld Bridal Corp. (January 2016 – present); Trustee of Neuroscience Research Institute (1986 – 2017); Trustee of Fordham University (1989 – 1995 and 2001 – 2007) and Trustee Emeritus (2007 – present); Trustee and Independent Chairperson of GE Funds (1993 – February 2011); Director, Muscular Dystrophy Association (since 2019); and Trustee of Gregorian University Foundation (1992 – 2007).


NAME, ADDRESS, AND YEAR OF BIRTH	POSITION(S) HELD WITH TRUST	TERM OF OFFICE AND LENGTH OF TIME SERVED	PRINCIPAL OCCUPATION DURING PAST FIVE YEARS AND RELEVANT EXPERIENCE	NUMBER OF FUNDS IN FUND COMPLEX OVERSEEN BY TRUSTEE†	OTHER DIRECTORSHIPS HELD BY TRUSTEE DURING PAST FIVE YEARS
Donna M. Rapaccioli c/o SSGA Funds Management, Inc. One Iron Street Boston, MA 02210 YOB: 1962	Trustee and Chairperson of the Audit Committee	Term: Indefinite Elected: 12/18	Dean of the Gabelli School of Business (2007 – present) and Accounting Professor (1987 – present) at Fordham University.	[64]	Director- Graduate Management Admissions Council (2015 – present); Trustee of Emmanuel College (2010 – 2019).

Richard D. Shirk c/o SSGA Funds Management, Inc. One Iron Street Boston, MA 02210 YOB: 1945	Trustee and Co-Chairperson of the Qualified Legal Compliance Committee	Term: Indefinite Elected: 1/14	March 2001 to April 2002, Chairman (1996 to March 2001, President and Chief Executive Officer), Cerulean Companies, Inc. (holding company) (Retired); 1992 to March 2001, President and Chief Executive Officer, Blue Cross Blue Shield of Georgia (health insurer, managed healthcare).	[64]	1998 to December 2008, Chairman, Board Member and December 2008 to present, Investment Committee Member, Healthcare Georgia Foundation (private foundation); September 2002 to 2012, Lead Director and Board Member, Amerigroup Corp. (managed health care); 1999 to 2013, Board Member and (2001 – 2017) Investment Committee Member, Woodruff Arts Center; and 2003 to 2009, Trustee, Gettysburg College; Board member, Aerocare Holdings, Regenesis Biomedical Inc.

Bruce D. Taber c/o SSGA Funds Management, Inc. One Iron Street Boston, MA 02210 YOB: 1943	Trustee, Co-Chairperson of the Valuation Committee, Chairperson of the Nominating Committee and Chairperson of the Governance Committee	Term: Indefinite Elected: 1/14	Retired; 1999 to 2016, Partner, Zenergy LLC (a technology company providing Computer Modeling and System Analysis to the General Electric Power Generation Division); Until December 2008, Independent Director, SSGA Cash Management Fund plc; Until December 2008, Independent Director, State Street Global Advisers Ireland, Ltd. (investment companies).	[46]	None.


		*THE INVESTMENT COMPANY ACT OF 1940*		☒
		Amendment No. 287

Fund Summary	1
State Street Diversified Income Fund	1
Additional Information About Investment Objective, Principal Strategies and Risks	8
Additional Information About Non-Principal Investment Strategies and Risks	15
Portfolio Holdings Disclosure	17
Management and Organization	18
Shareholder Information	19
Dividends, Distributions and Tax Considerations	27
Financial Intermediary Arrangements	28
Financial Highlights	30

Regular mail	Overnight/ Registered, Express, Certified Mail
State Street Funds P.O. Box 219737 Kansas City, MO 64121-9737	State Street Funds 430 W 7^th Street Suite 219737 Kansas City, MO 64105-1407


Name of Independent Trustee	Dollar Range Of Equity Securities In The Funds	Aggregate Dollar Range Of Equity Securities In All Registered Investment Companies Overseen By Trustees In Family of Investment Companies
Michael F. Holland	None	None
John R Costantino	None	None
Patrick J. Riley	None	Over $ 100,000
Richard D. Shirk	None	Over $ 100,000
Bruce D. Taber	None	Over $ 100,000
Donna M. Rapaccioli	None	None
Michael A. Jessee	None	None
Name of Interested Trustee
Ellen M. Needham	None	None


	AGGREGATE COMPENSATION FROM THE TRUST		PENSION OR RETIREMENT BENEFITS ACCRUED AS PART OF TRUST EXPENSES		ESTIMATED ANNUAL BENEFITS UPON RETIREMENT		TOTAL COMPENSATION FROM TRUST & FUND COMPLEX PAID TO TRUSTEES
NAME OF INDEPENDENT TRUSTEE
Michael F. Holland	$	113,404	$	0	$	0	$	385,000
Patrick J. Riley	$	113,404	$	0	$	0	$	385,000
Richard D. Shirk	$	90,380	$	0	$	0	$	325,000
Rina K. Spence*	$	90,380	$	0	$	0	$	325,000
Bruce D. Taber	$	90,059	$	0	$	0	$	312,400
Michael A. Jessee	$	90,380	$	0	$	0	$	325,000
John R. Costantino	$	90,380	$	0	$	0	$	325,000
Donna M. Rapaccioli	$	90,380	$	0	$	0	$	325,000
NAME OF INTERESTED TRUSTEE
Ellen M. Needham	$	0	$	0	$	0	$	0


(a)(1)		Amended and Restated Declaration of Trust dated April 14, 2014 is incorporated herein by reference to Post-Effective Amendment No. 47 to the State Street Institutional Investment Trust’s (the “Trust” or the “Registrant”) Registration Statement on Form N-1A filed with the Securities and Exchange Commission (the “Commission”) on April 25, 2014.

(b)(1)		Amended and Restated By-Laws of the Trust are incorporated herein by reference to the Post-Effective Amendment No. 137 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 28, 2015.

(c)		Not applicable.

(d)(1)		Amended and Restated Investment Advisory Agreement dated November 17, 2015 between SSGA Funds Management, Inc. (“SSGA FM”) and the Trust is incorporated herein by reference to Post-Effective Amendment No. 216 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2016.

(2)		Amended and Restated Appendix A dated April 24, 2020 to the Investment Advisory Agreement dated November 17, 2015 between SSGA FM and the Trust is incorporated herein by reference to Post-Effective Amendment No. 273 to the Trust’s Registration Statement on Form N-1A filed with the Commission on January 28, 2021.

(3)		Amended and Restated Appendix B dated April 24, 2020 to the Investment Advisory Agreement dated November 17, 2015 between SSGA FM and the Trust is incorporated herein by reference to Post-Effective Amendment No. 273 to the Trust’s Registration Statement on Form N-1A filed with the Commission on January 28, 2021.

(4)		Amended and Restated Appendix B dated [ ], to the Investment Advisory Agreement dated November 17, 2015 between SSGA FM (State Street Income Fund and State Street U.S. Core Equity Fund) and the Trust, to be filed by subsequent amendment.

(5)		Amended and Restated Appendix B dated [ ], to the Investment Advisory Agreement dated November 17, 2015 between SSGA FM (State Street Diversified Income Fund) and the Trust, to be filed by subsequent amendment.

(6)		Investment Sub-Advisory Agreement dated July 11, 2016 between State Street Global Advisors Ireland Limited and the Trust with respect to the State Street International Value Spotlight Fund is incorporated herein by reference to Post-Effective Amendment No. 230 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 28, 2016.

(7)		Fee Waiver and/or Expense Reimbursement Arrangements letter between SSGA FM and the Trust with respect to State Street Global All Cap Equity ex-U.S. Index Portfolio (formerly known as State Street Global Equity ex-U.S. Index Portfolio), State Street Small/Mid Cap Equity Index Portfolio, State Street Target Retirement Fund, State Street Target Retirement 2020 Fund, State Street Target Retirement 2025 Fund, State Street Target Retirement 2030 Fund, State Street Target Retirement 2035 Fund, State Street Target Retirement 2040 Fund, State Street Target Retirement 2045 Fund, State Street Target Retirement 2050 Fund, State Street Target Retirement 2055 Fund, State Street Target Retirement 2060 Fund, State Street Target Retirement 2065 Fund, State Street Equity 500 Index Fund, State Street Equity 500 Index II Portfolio, State Street Aggregate Bond Index Fund, State Street Aggregate Bond Index Portfolio, State Street Small/Mid Cap Equity Index Fund, State Street Global All Cap Equity ex-U.S. Index Fund (formerly known as State Street Global Equity ex-U.S. Index Fund), State Street International Developed Equity Index Fund, State Street Institutional Liquid Reserves Fund, State Street Institutional U.S. Government Money Market Fund, State Street Institutional Treasury Plus Money Market Fund, State Street Emerging Markets Equity Index Fund, State Street International Value Spotlight Fund, State Street ESG Liquid Reserves Fund, State Street Institutional Treasury Money Market Fund, State Street Hedged International Developed Equity Index Fund, State Street Treasury Obligations Money Market Fund and State Street China Equity Select Fund is incorporated herein by reference to Post-Effective Amendment No. 277 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 28, 2021.

(8)		Form of Reimbursement Agreement by and among State Street Master Funds, the Trust, State Street Navigator Securities Lending Trust, Elfun Government Money Market Fund, SSGA FM and State Street Global Advisors Funds Distributors, LLC (“SSGA FD”) is incorporated herein by reference to Post-Effective Amendment No. 270 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 24, 2020.

(9)		Fee Waiver and/or Expense Reimbursement Arrangements letter dated [ ], 2021 between SSGA FM and the Trust with respect to the State Street Diversified Income Fund to be filed by subsequent amendment.

(e)(1)		Amended and Restated Distribution Agreement between the Registrant and SSGA FD, is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.


(2)		Notice dated August 17, 2017 to the Distribution Agreement related to the State Street Treasury Obligations Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.

(3)		Notice to the Distribution Agreement related to the State Street China Equity Select Fund, State Street ESG Liquid Reserves Fund, State Street Target Retirement 2065 Fund, State Street Income Fund and State Street U.S. Core Equity Fund will be filed by subsequent amendment.

(4)		Notice to the Distribution Agreement related to the State Street Diversified Income Fund to be filed by subsequent amendment.

(f)		Not applicable.

(g)(1)		Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust is incorporated herein by reference to Post-Effective Amendment No. 9⁺ to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 30, 2002.

(2)		Amendment dated September 30, 2020 to the Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust is incorporated herein by reference to Post-Effective Amendment No. 273 to the Trust’s Registration Statement on Form N-1A filed with the Commission on January 28, 2021.

(3)		Notice dated February 14, 2002 to Amended and Restated Custodian Agreement dated February 14, 2001 with respect to the State Street Institutional Money Market Fund and the State Street Institutional U.S. Government Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 28 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 30, 2008.

(4)		Notice dated February 12, 2004 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street Institutional Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 28 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 30, 2008.

(5)		Notice dated July 22, 2008 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street Institutional Treasury Money Market Fund and the State Street Institutional Treasury Plus Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 29 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 24, 2008.

(6)		Notice dated June 19, 2014 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street Target Retirement 2015 Fund, State Street Target Retirement 2020 Fund, State Street Target Retirement 2025 Fund, State Street Target Retirement 2030 Fund, State Street Target Retirement 2035 Fund, State Street Target Retirement 2040 Fund, State Street Target Retirement 2045 Fund, State Street Target Retirement 2050 Fund, State Street Target Retirement 2055 Fund, State Street Target Retirement 2060 Fund, State Street Target Retirement Fund, State Street Strategic Real Return Portfolio, State Street Aggregate Bond Index Portfolio, State Street Global All Cap Equity ex-U.S. Index Portfolio, State Street Equity 500 Index II Portfolio, State Street Opportunistic Emerging Markets Fund, State Street Clarion Global Real Estate Income Fund, State Street Small Cap Emerging Markets Equity Fund and State Street Clarion Global Infrastructure & MLP Fund is incorporated herein by reference to Post-Effective Amendment No. 216 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2016.

(7)		Notice dated April 25, 2017 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to State Street MSCI Canada Index Fund, State Street MSCI Japan Index Fund, State Street MSCI Pacific ex Japan Index Fund and State Street MSCI Europe Index Fund is incorporated herein by reference to Post-Effective Amendment No. 240 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 28, 2017.

(8)		Notice dated June 1, 2017 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street Global Value Spotlight Fund, State Street International Value Spotlight Fund, State Street European Value Spotlight Fund, State Street Asia Pacific Value Spotlight Fund and State Street U.S. Value Spotlight Fund is incorporated herein by reference to Post-Effective Amendment No. 247 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 17, 2017.

(9)		Notice dated August 17, 2017 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street Treasury Obligations Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.


(10)		Notice dated February 10, 2015 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street International Developed Equity Index Fund is incorporated herein by reference to Post-Effective Amendment No. 111 to the Trust’s Registration Statement on Form N-1A filed with the Commission on May 26, 2015.

(11)		Notice dated February 10, 2015 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street Hedged International Developed Equity Index Fund is incorporated herein by reference to Post-Effective Amendment No. 104 to the Trust’s Registration Statement on Form N-1A filed with the Commission on May 6, 2015.

(12)		Notice dated August 3, 2015 to Amended and Restated Custodian Agreement dated February 14, 2001 between State Street Bank and Trust Company and the Trust with respect to the State Street Small/Mid Cap Equity Index Fund, State Street Small/Mid Cap Equity Index Portfolio and State Street Emerging Markets Equity Index Fund is incorporated herein by reference to the Post-Effective Amendment No. 151 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.

(13)		Notice to Amended and Restated Custodian Agreement between State Street Bank and Trust Company and the Trust with respect to the State Street Aggregate Bond Index Fund, State Street Global All Cap Equity ex-U.S. Index Fund, State Street ESG Liquid Reserves Fund, State Street China Equity Select Fund, State Street Income Fund and State Street U.S. Core Equity Fund will be filed by subsequent amendment.

(14)		Notice to Amended and Restated Custodian Agreement between State Street Bank and Trust Company and the Trust with respect to the State Street Target Retirement 2065 Fund is incorporated herein by reference to Post-Effective Amendment No. 273 to the Trust’s Registration Statement on Form N-1A filed with the Commission on January 28, 2021.

(15)		Notice to Amended and Restated Custodian Agreement between State Street Bank and Trust Company and the Trust with respect to the State Street Diversified Income Fund to be filed by subsequent amendment.

(h)(1)(a)		Transfer Agency and Service Agreement dated February 28, 2000 between State Street Bank and Trust Company and the Trust is incorporated herein by reference to Post-Effective Amendment No. 9⁺ to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 30, 2002.

(1)(b)		Anti-Money Laundering Services Amendment dated October 31, 2006 to Transfer Agency and Service Agreement dated February 28, 2000 between State Street Bank and Trust Company and the Trust is incorporated herein by reference to Post-Effective Amendment No. 29 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 24, 2008.

(1)(c)		Services Amendment dated April 5, 2004 to Transfer Agency and Service Agreement dated February 28, 2000 between State Street Bank and Trust Company and the Trust is incorporated herein by reference to Post-Effective Amendment No. 28 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 30, 2008.

(1)(d)		Notice dated February 14, 2002 to Transfer Agency and Service Agreement dated February 28, 2000 between State Street Bank and Trust Company and the Trust with respect to the State Street Institutional Money Market Fund and the State Street Institutional U.S. Government Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 30 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2009.

(1)(e)		Notice dated February 12, 2004 to Transfer Agency and Service Agreement dated February 28, 2000 between State Street Bank and Trust Company and the Trust with respect to the State Street Institutional Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 30 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2009.

(1)(f)		Notice dated August 3, 2015 to the Transfer Agency and Service Agreement dated February 28, 2000 between State Street Bank and Trust Company and the Trust with respect to the State Street Small/Mid Cap Equity Index Portfolio is incorporated herein by reference to the Post-Effective Amendment No. 151 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.

(1)(g)		Notice dated June 19, 2014 to the Transfer Agency and Service Agreement dated February 28, 2000 between State Street Bank and Trust Company and the Trust with respect to State Street Global All Cap Equity ex-U.S. Index Portfolio, State Street Aggregate Bond Index Portfolio, State Street Equity 500 Index II Portfolio is incorporated herein by reference to Post-Effective Amendment No. 216 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2016.

(1)(h)		Amendment to the Transfer Agency and Service Agreement dated June 1, 2015 between DST Asset Manager Solutions, Inc. (f/k/a Boston Financial Data Services, Inc.) and the Trust is incorporated herein by reference to Post-Effective Amendment No. 232 to the Trust’s Registration Statement on Form N-1A filed with the Commission on November 22, 2016.


(1)(i)		Amendment dated October 27, 2017 to the Transfer Agency and Service Agreement dated June 1, 2015 between DST Asset Manager Solutions, Inc. (f/k/a Boston Financial Data Services, Inc.) and the Trust is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.

(1)(j)		Amended Schedule A dated April 24, 2020 to the Transfer Agency and Service Agreement dated June 1, 2015 between DST Asset Manager Solutions, Inc. and the Trust is incorporated herein by reference to Post-Effective Amendment No. 273 to the Trust’s Registration Statement on Form N-1A filed with the Commission on January 28, 2021.

(1)(k)		Amended Schedule A dated [ ], 2021 to the Transfer Agency and Service Agreement dated June 1, 2015 between DST Asset Manager Solutions, Inc. and the Trust with respect to the State Street Diversified Income Fund to be filed by subsequent amendment.

(1)(l)		Amendment dated January 15, 2020 to be effective December 30, 2019 to the Transfer Agency and Service Agreement dated June 1, 2016 between DST Asset Manager Solutions, Inc. (f/k/a Boston Financial Data Services, Inc.) and the Trust is incorporated herein by reference to Post-Effective Amendment No. 270 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 24, 2020.

(1)(m)		Shareholder Servicing Agreement dated October 1, 2017 between SSGA FD and the Trust is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.

(1)(n)		Amendment dated June 28, 2018 to the Transfer Agency and Service Agreement dated June 1, 2015 between DST Asset Manager Solutions, Inc. (f/k/a Boston Financial Data Services, Inc.) and the Trust is incorporated herein by reference to Post-Effective Amendment No. 256 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2019.

(1)(o)		DST Digital Solutions Services Master Agreement dated July 1, 2018 between DST Systems, Inc. and the Trust is incorporated herein by reference to Post-Effective Amendment No. 256 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2019.

(1)(p)		Amendment dated February 10, 2021 to the Transfer Agency and Service Agreement dated June 1, 2015 between DST Asset Manager Solutions, Inc., SSGA Funds and the Trust is incorporated herein by reference to Post-Effective Amendment No. 277 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 28, 2021.

(2)(a)		Administration Agreement dated June 1, 2015 between SSGA FM, SSGA Funds, the Trust and State Street Master Funds is incorporated herein by reference to Post-Effective Amendment No. 216 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2016.

(2)(b)		Amended Schedule A dated February 16, 2016 to the Administration Agreement dated June 1, 2015 between SSGA FM and the Trust with respect to the State Street International Value Spotlight Fund is incorporated herein by reference to Post-Effective Amendment No. 216 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2016.

(2)(c)		Notice dated August 17, 2017 to Administration Agreement dated June 1, 2015 between SSGA FM, SSGA Funds, the Trust and State Street Master Funds with respect to the State Street Treasury Obligations Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.

(2)(d)		Notice dated December 31, 2020 to Administration Agreement dated June 1, 2015 between SSGA Funds, State Street Master Funds, SSGA FM and the Trust is incorporated herein by reference to Post-Effective Amendment No. 277 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 28, 2021.

(2)(e)		Notice to Administration Agreement between SSGA FM, SSGA Funds, the Trust and State Street Master Funds with respect to the State Street China Equity Select Fund, State Street ESG Liquid Reserves Fund, State Street Target Retirement 2065 Fund, State Street Income Fund and State Street U.S. Core Equity Fund will be filed by subsequent amendment.

(2)(f)		Notice to Administration Agreement between SSGA FM, SSGA Funds, the Trust and State Street Master Funds with respect to the State Street Diversified Income Fund to be filed by subsequent amendment.

(2)(g)		Sub-Administration Agreement dated June 1, 2015 between State Street Bank and Trust Company and SSGA FM is incorporated herein by reference to Post-Effective Amendment No. 175 to the Trust’s Registration Statement on Form N-1A filed with the Commission on November 20, 2015.


(2)(h)		Notice dated June 1, 2017 to Sub-Administration Agreement dated June 1, 2015 between State Street Bank and Trust Company and SSGA FM with respect to the State Street International Value Spotlight Fund is incorporated herein by reference to Post-Effective Amendment No. 247 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 17, 2017.

(2)(i)		Notice dated August 17, 2017 to Sub-Administration Agreement dated June 1, 2015 between State Street Bank and Trust Company and SSGA FM with respect to the State Street Treasury Obligations Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.

(2)(j)		Notice to Sub-Administration Agreement between State Street Bank and Trust Company and SSGA FM with respect to the State Street China Equity Select Fund, State Street ESG Liquid Reserves Fund, State Street Target 2065 Fund, State Street Income Fund and State Street U.S. Core Equity Fund will be filed by subsequent amendment.

(2)(k)		Notice to Sub-Administration Agreement between State Street Diversified Income Fund will be filed by subsequent amendment.

(2)(l)		Amendment dated June 29, 2018 to the Master Sub-Administration Agreement dated June 1, 2015 between State Street Bank and Trust Company and SSGA FM is incorporated herein by reference to Post-Effective Amendment No. 256 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2019.

(2)(m)		Form of Indemnification Agreement between the Trust and the Board of Trustees of the Trust is incorporated herein by reference to Post-Effective Amendment No. 256 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2019.

(3)		Form of Master-Feeder Participation Agreement between State Street Master Funds and the Trust with respect to the State Street Equity 500 Index Fund is incorporated herein by reference to Post-Effective Amendment No. 17 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 28, 2006.

(4)		Form of Master-Feeder Participation Agreement between State Street Master Funds and the Trust with respect to the State Street Institutional Liquid Reserves Fund is incorporated herein by reference to Post-Effective Amendment No. 17 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 28, 2006.

(5)		Master-Feeder Participation Agreement between State Street Master Funds and the Trust with respect to the State Street Institutional Tax Free Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 29 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 24, 2008.

(6)		Master-Feeder Participation Agreement between State Street Master Funds and the Trust with respect to the State Street Institutional Treasury Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 29 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 24, 2008.

(7)		Master-Feeder Participation Agreement between State Street Master Funds and the Trust with respect to the State Street Institutional Treasury Plus Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 29 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 24, 2008.

(8)		Master-Feeder Participation Agreement between State Street Master Funds and Henderson Global Funds dated April 20, 2009 is incorporated herein by reference to Post-Effective Amendment No. 30 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2009.

(9)		Information Security Program Agreement dated November 19, 2010 is incorporated herein by reference to Post-Effective Amendment No. 33 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2011.

(10)		Master-Feeder Participation Agreement between State Street Master Funds and the Trust with respect to the State Street Treasury Obligations Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 253 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 25, 2018.

(11)		Master-Feeder Participation Agreement between State Street Master Funds and the Trust with respect to the State Street ESG Liquid Reserves Fund will be filed by subsequent amendment.

(12)(a)		Master Amended and Restated Securities Lending Authorization Agreement dated January 6, 2017 between SSGA Funds, the Trust, State Street Master Funds and State Street Bank and Trust Company is incorporated herein by reference to Post-Effective Amendment No. 270 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 24, 2020.


(12)(b)		First Amendment to Master Amended and Restated Securities Lending Authorization Agreement between SSGA Funds, the Trust, State Street Master Funds and State Street Bank and Trust Company dated December 7, 2018 is incorporated herein by reference to Post-Effective Amendment No. 256 to the Trust’s Registration Statement on Form N-1A filed with the Commission on April 29, 2019.

(i)(1)		Legal Opinion of Ropes & Gray LLP is incorporated herein by reference to Pre-Effective Amendment No. 1 to the Trust’s Registration Statement on Form N-1A filed with the Commission in September 2000.

(2)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 10 to the Trust’s Registration Statement on Form N-1A filed with the Commission on November 13, 2002.

(3)		Legal Opinion of Ropes & Gray LLP with respect to the Class R Shares of the State Street Equity 500 Index Fund is incorporated herein by reference to Post-Effective Amendment No. 15 to the Trust’s Registration Statement on Form N-1A filed with the Commission on June 3, 2005.

(4)		Legal Opinion of Ropes & Gray LLP with respect to the Trust and the State Street Global All Cap Equity ex-U.S. Index Fund is incorporated herein by reference to Post-Effective Amendment No. 59 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 11, 2014.

(5)		Legal Opinion of Ropes & Gray LLP with respect to State Street Target Retirement 2015 Fund, State Street Target Retirement 2020 Fund, State Street Target Retirement 2025 Fund, State Street Target Retirement 2030 Fund, State Street Target Retirement 2035 Fund, State Street Target Retirement 2040 Fund, State Street Target Retirement 2045 Fund, State Street Target Retirement 2050 Fund, State Street Target Retirement 2055 Fund, State Street Target Retirement 2060 Fund, State Street Target Retirement Fund, State Street Strategic Real Return Fund, State Street Strategic Real Return Portfolio, State Street Aggregate Bond Index Portfolio, State Street Global All Cap Equity ex-U.S. Index Portfolio and State Street Equity 500 Index II Portfolio is incorporated herein by reference to Post-Effective Amendment No. 59 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 11, 2014.

(6)		Legal Opinion of Ropes & Gray LLP with respect to the Institutional Class, Investor Class and Administration Class shares of the State Street Institutional Liquid Reserves Fund, State Street Institutional Tax Free Money Market Fund, State Street Institutional U.S. Government Money Market Fund, State Street Institutional Treasury Money Market Fund and State Street Institutional Treasury Plus Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 54 to the Trust’s Registration Statement on Form N-1A filed with the Commission on June 24, 2014.

(7)		Legal Opinion of Ropes & Gray LLP with respect to Class G shares of the State Street Institutional U.S. Government Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 66 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 9, 2014.

(8)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Hedged International Developed Equity Index Fund and State Street International Developed Equity Index Fund is incorporated herein by reference to Post-Effective Amendment No. 104 to the Trust’s Registration Statement on Form N-1A filed with the Commission on May 6, 2015.

(9)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Small/Mid Cap Equity Index Fund and State Street Small/Mid Cap Equity Index Portfolio is incorporated herein by reference to Post-Effective Amendment No. 133 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 7, 2015.

(10)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Emerging Markets Equity Index Fund is incorporated herein by reference to Post-Effective Amendment No. 137 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 28, 2015.

(11)		Legal Opinion of Ropes & Gray LLP with respect to the State Street 60 Day Money Market Fund and State Street 60 Day Money Market Portfolio is incorporated herein by reference to Post-Effective Amendment No. 151 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.

(12)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Cash Reserves Fund and State Street Cash Reserves Portfolio is incorporated herein by reference to Post-Effective Amendment No. 152 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.

(13)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Conservative Income Fund and State Street Conservative Income Portfolio is incorporated herein by reference to Post-Effective Amendment No. 153 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.

(14)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Institutional Liquid Assets Fund and State Street Institutional Liquid Assets Portfolio is incorporated herein by reference to Post-Effective Amendment No. 154 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.


(15)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Current Yield Fund and State Street Current Yield Portfolio is incorporated herein by reference to Post-Effective Amendment No. 155 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.

(16)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Ultra Short Term Bond Fund and State Street Ultra Short Term Bond Portfolio is incorporated herein by reference to Post-Effective Amendment No. 156 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 30, 2015.

(17)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Disciplined Global Equity Fund is incorporated herein by reference to Post-Effective Amendment No. 196 to the Trust’s Registration Statement on Form N-1A filed with the Commission on February 18, 2016.

(18)		Legal Opinion of Ropes & Gray LLP with respect to Trust Class shares of the State Street Institutional Liquid Reserves Fund and State Street Institutional Treasury Plus Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 226 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 25, 2016.

(19)		Legal Opinion of Ropes & Gray LLP with respect to the State Street International Value Spotlight Fund is incorporated herein by reference to Post-Effective Amendment No. 229 to the Trust’s Registration Statement on Form N-1A filed with the Commission on September 21, 2016.

(20)		Legal Opinion of Ropes & Gray LLP with respect to Class M shares of the State Street Institutional U.S. Government Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 232 to the Trust’s Registration Statement on Form N-1A filed with the Commission on November 22, 2016.

(21)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Treasury Obligations Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 247 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 17, 2017.

(22)		Legal Opinion of Ropes & Gray LLP with respect to the State Street ESG Liquid Reserves Fund is incorporated herein by reference to Post-Effective Amendment No. 259 to the Trust’s Registration Statement on Form N-1A filed with the Commission on July 1, 2019.

(23)		Legal Opinion of Ropes & Gray LLP with respect to the State Street China Equity Select Fund is incorporated herein by reference to Post-Effective Amendment No. 262 to the Trust’s Registration Statement on Form N-1A filed with the Commission on August 26, 2019.

(24)		Legal Opinion of Ropes & Gray LLP with respect to the State Street Target Retirement 2065 Fund is incorporated herein by reference to Post-Effective Amendment No. 267 to the Trust’s Registration Statement on Form N-1A filed with the Commission on February 19, 2020.

(25)		Legal Opinion of Ropes & Gray LLP with respect to Bancroft Capital Class shares of the State Street ESG Liquid Reserves Fund, State Street Institutional Liquid Reserves Fund, State Street Institutional Treasury Money Market Fund, State Street Institutional Treasury Plus Money Market Fund and State Street Institutional U.S. Government Money Market Fund is incorporated herein by reference to Post-Effective Amendment No. 284 to the Trust’s Registration Statement on Form N1-A filed with the Commission on September 9, 2020.

(26)		Legal Opinion of Ropes & Gray LLP with respect to [Blaylock] Class shares of the State Street ESG Liquid Reserves Fund, State Street Institutional Liquid Reserves Fund, State Street Institutional Treasury Money Market Fund, State Street Institutional Treasury Plus Money Market Fund and State Street Institutional U.S. Government Money Market Fund and [Cabrera Capital] Class Shares of the State Street ESG Liquid Reserves Fund, State Street Institutional Treasury Money Market Fund, State Street Institutional Treasury Plus Money Market Fund and State Street Institutional U.S. Government Money Market Fund, to be filed by subsequent amendment.

(27)		Legal Opinion of Ropes & Gray LLP with respect to [Opportunity] Class shares of the State Street ESG Liquid Reserves Fund, State Street Institutional Liquid Reserves Fund, State Street Institutional Treasury Money Market Fund, State Street Institutional Treasury Plus Money Market Fund and State Street Institutional U.S. Government Money Market Fund, to be filed by subsequent amendment.

(28)		Legal Opinion of Ropes & Gray LLP with respect to [R3] Class shares of the State Street Target Retirement 2020 Fund, State Street Target Retirement 2025 Fund, State Street Target Retirement 2030 Fund, State Street Target Retirement 2035 Fund, State Street Target Retirement 2040 Fund, State Street Target Retirement 2045 Fund, State Street Target Retirement 2050 Fund, State Street Target Retirement 2055 Fund, State Street Target Retirement 2060 Fund, State Street Target Retirement 2065 Fund and State Street Target Retirement Fund, to be filed by subsequent amendment.

(29)		Legal Opinion of Ropes & Gray LLP with respect to State Street Diversified Income Fund, to be filed by subsequent amendment.


Name		Principal Occupations
Ellen Needham		Chairman, Director and President of SSGA FM; Senior Vice President/Senior Managing Director of SSGA

Jeanne La Porta		Director of SSGA FM; Senior Vice President/Senior Managing Director of SSGA

Barry Smith		Director of SSGA FM; Senior Vice President/Senior Managing Director of SSGA

Lori Heinel		Director of SSGA FM; Executive Vice President of SSGA

Steven Lipiner		Director of SSGA FM; Senior Vice President/Senior Managing Director and Chief Financial Officer of SSGA

Chris Baker		Chief Compliance Officer of SSGA FM; Managing Director and Chief Compliance Officer of SSGA

Bo Trevino		Treasurer of SSGA FM; Vice President of SSGA

Sean O’Malley, Esq.		Chief Legal Officer of SSGA FM; Senior Vice President/Senior Managing Director and Deputy General Counsel of SSGA

Ann Carpenter		Chief Operating Officer of SSGA FM; Managing Director of SSGA

Timothy Corbett		Chief Risk Officer of SSGA FM; Senior Vice President/Senior Managing Director of SSGA

Kathryn Sweeney		CTA—Chief Marketing Officer of SSGA FM; Senior Vice President/Senior Managing Director of SSGA

David Urman, Esq.		Clerk of SSGA FM; Vice President and Senior Counsel of SSGA

Dan Furman, Esq.		Assistant Clerk of SSGA FM; Managing Director and Managing Counsel of SSGA

Leanne Dunn, Esq.		Assistant Clerk of SSGA FM; Managing Director and Senior Counsel of SSGA

Mike Pastore, Esq.		Assistant Clerk of SSGA FM; Managing Director and Senior Counsel of SSGA


NAME AND PRINCIPAL BUSINESS ADDRESS*	POSITION AND OFFICES WITH UNDERWRITER	POSITION AND OFFICES WITH REGISTRANT
Barry F.X. Smith	President, Chairman and Manager	None

Timothy Corbett	Manager	None

Jeanne La Porta	Manager	None

Steven Lipiner	Manager	None

Ellen Needham	Manager	President and Trustee

Christine Stokes	Manager	None

John Tucker	Manager	None

M. Patrick Donovan	Chief Compliance Officer and Anti-Money Laundering Officer	None

David Maxham	Chief Financial Officer	None

Sean O’Malley, Esq.	Chief Legal Officer	Chief Legal Officer


STATE STREET INSTITUTIONAL INVESTMENT TRUST

By:		/s/ Ellen M. Needham
		Ellen M. Needham President


Signature				Signature
/s/ Michael F. Holland*				/s/ Donna M. Rapaccioli*
Michael F. Holland, Trustee				Donna M. Rapaccioli, Trustee

/s/ Patrick J. Riley*				/s/ Richard D. Shirk*
Patrick J. Riley, Trustee				Richard D. Shirk, Trustee

/s/ Michael A. Jessee*				/s/ Bruce D. Taber*
Michael A. Jessee, Trustee				Bruce D. Taber, Trustee

/s/ Bruce S. Rosenberg				/s/ John R. Costantino*
Bruce S. Rosenberg, Treasurer (Principal Financial Officer and Principal Accounting Officer)				John R. Costantino, Trustee

/s/ Ellen M. Needham
Ellen M. Needham, President (Principal Executive Officer) and Trustee