Fund	Ticker
Fidelity Low Duration Bond Factor ETF	FLDR

Principal U.S. Listing Exchange: Cboe BZX Exchange, Inc.

Prospectus

June 11, 2018

These securities have not been approved or disapproved by the Securities and Exchange Commission, and the Securities and Exchange Commission has not determined if this prospectus is accurate or complete. Any representation to the contrary is a criminal offense.

245 Summer Street, Boston, MA 02210

Contents

Fund Summary		Fidelity® Low Duration Bond Factor ETF
Fund Basics		Investment Details
		Valuing Shares
Shareholder Information		Additional Information about the Purchase and Sale of Shares
		Dividends and Capital Gain Distributions
		Tax Consequences
Fund Services		Fund Management
		Fund Distribution
		Other Service Providers
Appendix		Additional Index Information

Fund Summary

Fund:

Fidelity® Low Duration Bond Factor ETF

Investment Objective

The fund seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Low Duration Investment Grade Factor Index℠ (the Index).

Fee Table

The following table describes the fees and expenses that may be incurred when you buy and hold shares of the fund.

Shareholder fees

(fees paid directly from your investment)

None

Annual Operating Expenses

(expenses that you pay each year as a % of the value of your investment)

Management fee	0.15%
Distribution and/or Service (12b-1) fees	None
Other expenses^(a)	0.00%
Total annual operating expenses	0.15%

(a) Based on estimated amounts for the current fiscal year.

This example helps compare the cost of investing in the fund with the cost of investing in other funds.

Let's say, hypothetically, that the annual return for shares of the fund is 5% and that your shareholder fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. Investors may pay brokerage commissions on their purchase and sale of fund shares, which are not reflected in the example. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:

1 year	$15
3 years	$48

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 operating expenses or in the example, affect the fund's performance.

Principal Investment Strategies

Normally investing at least 80% of assets in securities included in the Index. The Index is designed to optimize the balance of interest rate risk and credit risk such that both returns and risk measures may be improved relative to traditional U.S. investment grade floating rate note indices. The Index is comprised solely of U.S. investment grade floating rate notes and U.S. Treasury notes.

Normally maintaining a duration of 1 year or less.

Using statistical sampling techniques based on duration, maturity, interest rate sensitivity, security structure, and credit quality to attempt to replicate the returns of the Index using a smaller number of securities.

Lending securities to earn income for the fund.

Principal Investment Risks

Interest Rate Changes. Interest rate increases can cause the price of a debt security to decrease.

Floating Rate Notes. Securities with floating interest rates can be less sensitive to interest rate changes than securities with fixed interest rates, but may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Floating rate notes typically carry lower yields than fixed rate notes of the same maturity.

Prepayment. The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change.

Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. A decline in the credit quality of an issuer or a provider of credit support or a maturity-shortening structure for a security can cause the price of a security to decrease.

Fluctuation of Net Asset Value and Share Price. The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares are listed on Cboe BZX Exchange, Inc. (CboeBZX) and trade at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. In addition, in stressed market conditions, the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.

Correlation to Index. The performance of the fund and its index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders.

Passive Management Risk. The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund’s index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund’s performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers.

Trading Issues. There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund’s shares or to submit purchase and redemption orders for creation units. In addition, trading may be halted, for example, due to market conditions.

An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Unlike individual debt securities, which typically pay principal at maturity, the value of an investment in the fund will fluctuate. You could lose money by investing in the fund.

Performance

Performance history will be available for the fund after the fund has been in operation for one calendar year.

Investment Adviser

Fidelity Investments Money Management, Inc. (FIMM) (the Adviser), an affiliate of Fidelity Management & Research Company (FMR), is the fund's manager. Other investment advisers serve as sub-advisers for the fund.

Portfolio Manager(s)

Brandon Bettencourt (co-manager) and Jay Small (co-manager) have managed the fund since June 2018.

Purchase and Sale of Shares

The fund is an exchange-traded fund. Unlike shares of traditional mutual funds, shares of the fund are not individually redeemable and can be purchased and redeemed directly from the fund at NAV only in large increments called "Creation Units" (25,000 shares per Creation Unit) through certain participants, known as Authorized Participants, in the Depository Trust Company (DTC) or the Continuous Net Settlement System (CNSS) of the National Securities Clearing Corporation. The fund will issue or redeem Creation Units in exchange for portfolio securities and/or cash.

Shares of the fund are listed and traded on CboeBZX, and individual investors can purchase or sell shares in much smaller increments and for cash in the secondary market through a broker. These transactions, which do not involve the fund, are made at market prices that may vary throughout the day and may differ from the fund's NAV. As a result, you may pay more than NAV when you purchase shares, and receive less than NAV when you sell shares, in the secondary market.

The fund is open for business each day that either CboeBZX or the New York Stock Exchange (NYSE) is open.

Tax Information

Distributions you receive from the fund are subject to federal income tax and generally will be taxed as ordinary income or capital gains, and may also be subject to state or local taxes, unless you are investing through a tax-advantaged retirement account (in which case you may be taxed later, upon withdrawal of your investment from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

The fund, the Adviser, Fidelity Distributors Corporation (FDC), and/or their affiliates may pay intermediaries, which may include banks, broker-dealers, retirement plan sponsors, administrators, or service-providers (who may be affiliated with the Adviser or FDC), for the sale of fund shares and related services. These payments may create a conflict of interest by influencing your intermediary and your investment professional to recommend the fund over another investment. Ask your investment professional or visit your intermediary's web site for more information.

Fund Basics

Investment Details

Investment Objective

Fidelity^® Low Duration Bond Factor ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Low Duration Investment Grade Factor Index℠.

Principal Investment Strategies

The Adviser normally invests at least 80% of the fund’s assets in securities included in the Index. The Index is designed to optimize the balance of interest rate risk and credit risk, such that both returns and risk measures may be improved relative to traditional U.S. investment grade floating rate note indices.

The universe of securities is intended to reflect a blend of two components: U.S. corporate floating rate notes with less than 5 years maturity and U.S. Treasury Notes with 7 to 10 years maturity.

The Index is constructed using Fidelity's rules-based proprietary index methodology. The weight of each component in the blend is set to target a duration, which seeks to optimize the balance of credit risk and interest rate risk. The final weights of securities within the corporate floating rate notes component are determined by their market capitalization, subject to an issuer cap of 3.5%.

The Index is rebalanced monthly.

The fund may not always hold all of the same securities as the Index. The Adviser may use statistical sampling techniques to attempt to replicate the returns of the Index using a smaller number of securities. Statistical sampling techniques attempt to match the investment characteristics of the Index and the fund by taking into account such factors as duration, maturity, interest rate sensitivity, security structure, and credit quality.

The fund may not track the Index because differences between the Index and the fund's portfolio can cause differences in performance. In addition, expenses and transaction costs, the size and frequency of cash flows into and out of the fund, and differences between how and when the fund and the Index are valued can cause differences in performance.

The fund may lend securities to broker-dealers or other institutions to earn income.

The fund normally maintains a duration of 1 year or less. Duration is a measure of a bond's price sensitivity to a change in interest rates. For example, if a bond has a 1-year duration and interest rates rise 1%, the bond's value is likely to fall about 1%. Similarly, if a bond fund has a 1-year duration and interest rates rise 1%, the fund's value is likely to fall about 1%.

The fund will invest more than 25% of its total assets in securities of issuers in a particular industry to approximately the same extent that the fund's Index concentrates in the securities of issuers in a particular industry.

In addition to the principal investment strategies discussed above, the Adviser may also use various techniques, such as buying and selling futures contracts, swaps, and exchange traded funds, to increase or decrease the fund's exposure to changing security prices, interest rates, credit qualities, or other factors that affect security values or to gain or reduce exposure to an asset, instrument, or index.

If the Adviser’s strategies do not work as intended, the fund may not achieve its objective.

Description of Principal Security Types

Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Some debt securities, such as zero coupon bonds, do not pay current interest but are sold at a discount from their face values. Floating rate notes are debt securities with interest rates that reset or adjust periodically by reference to a benchmark interest rate. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities believed to have debt-like characteristics, including hybrids and synthetic securities.

Derivatives are investments whose values are tied to an underlying asset, instrument, currency, or index. Derivatives include futures, options, forwards, and swaps, such as interest rate swaps (exchanging a floating rate for a fixed rate), total return swaps (exchanging a floating rate for the total return of an index, security, or other instrument or investment) and credit default swaps (buying or selling credit default protection).

U.S. Government securities are high-quality securities issued or guaranteed by the U.S. Treasury or by an agency or instrumentality of the U.S. Government. U.S. Government securities may be backed by the full faith and credit of the U.S. Treasury, the right to borrow from the U.S. Treasury, or the agency or instrumentality issuing or guaranteeing the security. U.S. Government securities include mortgage and other asset-backed securities.

Principal Investment Risks

Many factors affect the fund's performance. The fund's share price and yield change daily based on changes in market conditions and interest rates and in response to other economic, political, or financial developments. The fund's reaction to these developments will be affected by the types and maturities of securities in which the fund invests, the financial condition, industry and economic sector, and geographic location of an issuer, and the fund's level of investment in the securities of that issuer. Unlike individual debt securities, which typically pay principal at maturity, the value of an investment in the fund will fluctuate. When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money by investing in the fund.

The following factors can significantly affect the fund's performance:

Interest Rate Changes. Debt securities, including money market securities, have varying levels of sensitivity to changes in interest rates. In general, the price of a debt security can fall when interest rates rise and can rise when interest rates fall. Securities with longer maturities and certain types of securities, such as mortgage securities and the securities of issuers in the financial services sector, can be more sensitive to interest rate changes, meaning the longer the maturity of a security, the greater the impact a change in interest rates could have on the security's price. Short-term and long-term interest rates do not necessarily move in the same amount or the same direction. Short-term securities tend to react to changes in short-term interest rates, and long-term securities tend to react to changes in long-term interest rates. Securities whose payment at maturity is based on the movement of all or part of an index and inflation-protected debt securities may react differently from other types of debt securities.

Floating Rate Notes. Securities with floating interest rates can be less sensitive to interest rate changes than securities with fixed interest rates, but may decline in value if their interest rates do not rise as much, or as quickly, as interest rates in general. Conversely, floating rate securities typically will not increase in value if interest rates decline. A decline in interest rates may result in a reduction in income received from floating rate notes held by the fund and may adversely affect the fund’s NAV. Securities with longer durations tend to be more sensitive to interest rate changes and thus are usually more volatile than securities with shorter durations.

Prepayment. Many types of debt securities, including mortgage securities, are subject to prepayment risk. Prepayment risk occurs when the issuer of a security can repay principal prior to the security's maturity. Securities subject to prepayment can offer less potential for gains during a declining interest rate environment and similar or greater potential for loss in a rising interest rate environment. In addition, the potential impact of prepayment features on the price of a debt security can be difficult to predict and result in greater volatility.

Issuer-Specific Changes. Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction), changes in specific economic or political conditions that affect a particular type of security or issuer, and changes in general economic or political conditions can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's credit quality or value. Entities providing credit support or a maturity-shortening structure also can be affected by these types of changes, and if the structure of a security fails to function as intended, the security could decline in value.

Fluctuation of Net Asset Value and Share Price. The NAV of the fund's shares will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares are listed on CboeBZX and can be bought and sold in the secondary market at market prices. The market prices of shares will fluctuate in accordance with changes in NAV and supply and demand on CboeBZX. Although a share's market price is expected to approximate its NAV, it is possible that the market price and NAV will vary significantly. As a result, you may sustain losses if you pay more than the shares' NAV when you purchase shares, or receive less than the shares' NAV when you sell shares, in the secondary market. During periods of disruptions to creations and redemptions, the existence of extreme market volatility, or lack of an active trading market for the fund's shares, the market price of fund shares is more likely to differ significantly from the fund's NAV. During such periods, you may be unable to sell your shares or may incur significant losses if you sell your shares. There are various methods by which investors can purchase and sell shares and various orders that may be placed. Investors should consult their financial intermediary before purchasing or selling shares of a fund. Disruptions at market makers, Authorized Participants or market participants may also result in significant differences between the market price of the fund's shares and the fund's NAV. In addition, in stressed market conditions, the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.

The market price of shares during the trading day, like the price of any exchange-traded security, includes a "bid/ask" spread charged by the exchange specialist, market makers, or other participants that trade the particular security. In times of severe market disruption, the bid/ask spread can increase significantly. At those times, shares are most likely to be traded at a discount to NAV, and the discount is likely to be greatest when the price of shares is falling fastest, which may be the time that you most want to sell your shares. The Adviser expects that, under normal market conditions, large discounts or premiums to NAV will not be sustained in the long term because of arbitrage opportunities.

Information about the premiums and discounts at which the fund's shares have traded is available at www.fidelity.com.

Correlation to Index. The performance of the fund and its index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, imperfect correlation between the fund’s securities and those in the index, and timing differences associated with additions to and deletions from the index. The fund may not be fully invested at times as a result of cash flows into the fund. The use of sampling techniques or futures or other derivative positions may affect the fund’s ability to achieve close correlation with the index. In addition, the fund may not be able to invest in certain securities included in the index or invest in them in the exact proportions in which they are represented in the index due to regulatory restrictions. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its Shareholders.

Passive Management Risk. An index fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund’s index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, an index fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. The structure and composition of an index fund’s index will affect the performance, volatility, and risk of the index and, consequently, the performance, volatility, and risk of the fund. The fund will be concentrated to approximately the same extent that the fund's index concentrates in the securities of issuers in a particular industry.

Trading Issues. Although shares are listed on CboeBZX, there can be no assurance that an active trading market or requirements to remain listed will be met or maintained. Only an Authorized Participant may engage in creation or redemption transactions directly with the fund. The fund has a limited number of intermediaries that act as Authorized Participants. There are no obligations of market makers to make a market in the fund's shares or of Authorized Participants to submit purchase or redemption orders for Creation Units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund’s portfolio securities and the market price of fund shares. To the extent no other Authorized Participants are able to step forward to create or redeem, shares may trade at a discount to NAV and possibly face delisting. In addition, trading of shares in the secondary market may be halted, for example, due to activation of marketwide "circuit breakers." If trading halts or an unanticipated early closing of CboeBZX occurs, a shareholder may be unable to purchase or sell shares of the fund. FDC, the distributor of the fund's shares, does not maintain a secondary market in the shares.

If the fund's shares are delisted from CboeBZX, the Adviser may seek to list the fund shares on another market, merge the fund with another exchange-traded fund or traditional mutual fund, or redeem the fund shares at NAV.

Shares of the fund, similar to shares of other issuers listed on a stock exchange, may be sold short and are therefore subject to the risk of increased volatility and price decreases associated with being sold short.

Leverage Risk. Derivatives, forward-settling securities, and short sale transactions involve leverage because they can provide investment exposure in an amount exceeding the initial investment. Leverage can magnify investment risks and cause losses to be realized more quickly. A small change in the underlying asset, instrument, or index can lead to a significant loss. Assets segregated to cover these transactions may decline in value and are not available to meet redemptions. Forward-settling securities and short sale transactions also involve the risk that a security will not be issued, delivered, available for purchase, or paid for when anticipated. An increase in the market price of securities sold short will result in a loss. Government legislation or regulation could affect the use of these transactions and could limit a fund's ability to pursue its investment strategies.

Shareholder Notice

The following is subject to change only upon 60 days' prior notice to shareholders:

Fidelity^® Low Duration Bond Factor ETF normally invests at least 80% of its assets in securities included in the Index.

Valuing Shares

The fund is open for business each day the CboeBZX or the NYSE is open.

The NAV is the value of a single share. Fidelity normally calculates NAV as of the close of regular trading hours on the CboeBZX or the NYSE, normally 4:00 p.m. Eastern time. The fund's assets normally are valued as of this time for the purpose of computing NAV.

NAV is not calculated and the fund will not process purchase and redemption requests submitted on days when the fund is not open for business. The time at which shares are priced and until which purchase and redemption orders are accepted may be changed as permitted by the Securities and Exchange Commission (SEC).

Shares of the fund are listed and traded on the CboeBZX and may be purchased through a broker in the secondary market by individual investors at market prices which may vary throughout the day and may differ from NAV.

To the extent that the fund's assets are traded in other markets on days when the fund is not open for business, the value of the fund's assets may be affected on those days. In addition, trading in some of the fund's assets may not occur on days when the fund is open for business.

Shares of open-end funds in which the fund may invest (referred to as underlying funds) are valued at their respective NAVs. NAV is calculated using the values of any underlying funds in which it invests. Other assets are valued primarily on the basis of market quotations, official closing prices, or information furnished by a pricing service. Certain short-term securities are valued on the basis of amortized cost. If market quotations, official closing prices, or information furnished by a pricing service are not readily available or, in the Adviser's opinion, are deemed unreliable for a security, then that security will be fair valued in good faith by the Adviser in accordance with applicable fair value pricing policies. For example, if, in the Adviser's opinion, a security's value has been materially affected by events occurring before a fund's pricing time but after the close of the exchange or market on which the security is principally traded, then that security will be fair valued in good faith by the Adviser in accordance with applicable fair value pricing policies. Fair value pricing will be used for high yield debt securities when available pricing information is determined to be stale or for other reasons not to accurately reflect fair value.

Fair value pricing is based on subjective judgments and it is possible that the fair value of a security may differ materially from the value that would be realized if the security were sold.

The intraday portfolio value of a Creation Unit of a fund on a per share basis will be disseminated every fifteen seconds throughout the trading day through the facilities of the Consolidated Tape Association. The intraday portfolio value has a securities component and a cash component reflecting cash and other assets that may be held by the fund. You should not view this intraday portfolio value as a "real-time" update of the actual NAV because the intraday portfolio value may not be calculated in the same manner as the NAV, which is computed once a day, and may not necessarily reflect the precise composition of the current portfolio of securities held by the fund at a particular point in time. The fund is not involved in, or responsible for, the calculation or dissemination of such amount and makes no warranty as to its accuracy.

Shareholder Information

Additional Information about the Purchase and Sale of Shares

As used in this prospectus, the term "shares" generally refers to the shares offered through this prospectus.

General Information

Information on Fidelity

Fidelity Investments was established in 1946 to manage one of America's first mutual funds. Today, Fidelity is one of the world's largest providers of financial services.

In addition to its fund business, the company operates one of America's leading brokerage firms, Fidelity Brokerage Services LLC. Fidelity is also a leader in providing tax-advantaged retirement plans for individuals investing on their own or through their employer.

The Depository Trust Company (DTC) is a limited trust company and securities depository that facilitates the clearance and settlement of trades for its participating banks and broker-dealers. DTC has executed an agreement with Fidelity Distributors Corporation (FDC), the fund's distributor.

Buying and Selling Shares in the Secondary Market

Shares of the fund are listed and traded on Cboe BZX Exchange, Inc., and individual investors can purchase or sell shares in the secondary market through a broker. The fund does not impose any minimum investment for shares of the fund purchased on Cboe BZX Exchange, Inc. These transactions are made at market prices that may vary throughout the day and may be greater than the fund's NAV (premium) or less than the fund's NAV (discount). As a result, you may pay more than NAV when you purchase shares, and receive less than NAV when you sell shares, in the secondary market. If you buy or sell shares in the secondary market, you will generally incur customary brokerage commissions and charges. Due to such commissions and charges, frequent trading may detract significantly from investment returns.

The fund is designed to offer investors an investment that can be bought and sold frequently in the secondary market without impact on the fund, and such trading activity is critical to ensuring that the market price of fund shares remains at or close to NAV. Accordingly, the Board of Trustees has not adopted policies and procedures designed to discourage excessive or short-term trading by these investors.

The fund accommodates frequent purchases and redemptions of Creation Units by Authorized Participants and does not place a limit on purchases or redemptions of Creation Units by these investors. The fund reserves the right, but does not have the obligation, to reject any purchase or redemption transaction at any time. In addition, the fund reserves the right to impose restrictions on disruptive, excessive, or short-term trading.

Precautionary Notes

Note to Investment Companies. For purposes of the Investment Company Act of 1940 (1940 Act), shares are issued by the fund, and the acquisition of shares by investment companies is subject to the restrictions of Section 12(d)(1) of the 1940 Act. Registered investment companies are permitted to invest in a fund beyond the limits set forth in Section 12(d)(1), subject to certain terms and conditions set forth in an SEC exemptive order issued to FMR and its affiliates, including that such investment companies enter into an agreement with the fund.

Note to Authorized Participants Regarding Continuous Offering. Certain legal risks may exist that are unique to Authorized Participants purchasing Creation Units directly from the fund. Because new Creation Units may be issued on an ongoing basis, at any point a "distribution," as such term is used in the Securities Act of 1933 (the Securities Act), could be occurring. As a broker-dealer, certain activities that you perform may, depending on the circumstances, result in your being deemed a participant in a distribution, in a manner which could render you a statutory underwriter and subject you to the prospectus delivery and liability provisions of the Securities Act.

For example, you may be deemed a statutory underwriter if you purchase Creation Units from the fund, break them down into individual fund shares, and sell such shares directly to customers, or if you choose to couple the creation of a supply of new fund shares with an active selling effort involving solicitation of secondary market demand for fund shares. A determination of whether a person is an underwriter for purposes of the Securities Act depends upon all of the facts and circumstances pertaining to that person's activities, and the examples mentioned here should not be considered a complete description of all the activities that could lead to a categorization as an underwriter.

Dealers who are not "underwriters" but are participating in a distribution (as opposed to engaging in ordinary secondary market transactions), and thus dealing with shares as part of an "unsold allotment" within the meaning of Section 4(a)(3)(C) of the Securities Act, will be unable to take advantage of the prospectus delivery exemption provided by Section 4(a)(3) of the Securities Act.

This is because the prospectus delivery exemption in Section 4(a)(3) of the Securities Act is not available in respect of such transactions as a result of Section 24(d) of the 1940 Act. As a result, you should note that dealers who are not underwriters but are participating in a distribution (as opposed to engaging in ordinary secondary market transactions) and thus dealing with the shares that are part of an overallotment within the meaning of Section 4(a)(3)(A) of the Securities Act would be unable to take advantage of the prospectus delivery exemption provided by Section 4(a)(3) of the Securities Act. Firms that incur a prospectus-delivery obligation with respect to shares of the fund are reminded that, under Rule 153 under the Securities Act, a prospectus delivery obligation under Section 5(b)(2) of the Securities Act owed to an exchange member in connection with a sale on Cboe BZX Exchange, Inc. is satisfied by the fact that the prospectus is available at Cboe BZX Exchange, Inc. upon request. The prospectus delivery mechanism provided in Rule 153 is only available with respect to transactions on an exchange. Certain affiliates of the fund may purchase and resell fund shares pursuant to this prospectus.

Note to Secondary Market Investors. DTC, or its nominee, is the registered owner of all outstanding shares of the fund. The Adviser will not have any record of your ownership. Your ownership of shares will be shown on the records of DTC and the DTC participant broker through which you hold the shares. Your broker will provide you with account statements, confirmations of your purchases and sales, and tax information. Your broker will also be responsible for distributing income and capital gain distributions and for sending you shareholder reports and other information as may be required.

Costs Associated with Creations and Redemptions

The fund may impose a creation transaction fee and a redemption transaction fee to offset transfer and other transaction costs associated with the issuance and redemption of Creation Units of shares. The creation and redemption transaction fees applicable to the fund are listed below. The standard creation transaction fee is charged to the Authorized Participant on the day such Authorized Participant creates a Creation Unit, and is the same regardless of the number of Creation Units purchased by the Authorized Participant on the applicable business day. Similarly, the standard redemption transaction fee is charged to the Authorized Participant on the day such Authorized Participant redeems a Creation Unit, and is the same regardless of the number of Creation Units redeemed by the Authorized Participant on the applicable business day. Creations and redemptions for cash are also subject to a variable additional fee (up to the maximum amounts shown in the table below). This fee is intended to compensate for brokerage, tax, foreign exchange, execution, market impact and other costs and expenses related to cash transactions. From time to time, the Adviser may cover the cost of any transaction fees when believed to be in the best interests of the fund.

The following table shows, as of June 11, 2018, the approximate value of one Creation Unit, standard fees and maximum additional transaction fees for creations and redemptions (as described above). These fees are payable only by investors who purchase shares directly from the fund. Retail investors who purchase shares through their brokerage account will not pay these fees.

Name of Fund	Approximate Value of One Creation Unit	Standard Creation/Redemption Transaction Fee	Maximum Additional Creation Transaction Fee*	Maximum Additional Redemption Transaction Fee*
Fidelity® Low Duration Bond Factor ETF	$1,250,000	$125	5.0%	2.0%

* As a percentage of the cash amount invested or redeemed.

Dividends and Capital Gain Distributions

The fund earns interest, dividends, and other income from its investments, and distributes this income (less expenses) to shareholders as dividends. The fund also realizes capital gains from its investments, and distributes these gains (less any losses) as capital gain distributions. If you purchased your shares in the secondary market, your broker is responsible for distributing the income and capital gain distributions to you.

The fund normally pays dividends monthly and capital gain distributions in December.

Tax Consequences

As with any investment, your investment in the fund could have tax consequences for you. If you are not investing through a tax-advantaged retirement account, you should consider these tax consequences.

Taxes on Distributions Distributions investors receive are subject to federal income tax, and may also be subject to state or local taxes.

For federal tax purposes, certain distributions, including dividends and distributions of short-term capital gains, are taxable to investors as ordinary income, while certain distributions, including distributions of long-term capital gains, are taxable to investors generally as capital gains. A percentage of certain distributions of dividends may qualify for taxation at long-term capital gains rates (provided certain holding period requirements are met). Because the fund's income is primarily derived from interest, dividends from the fund generally will not qualify for the long-term capital gains tax rates available to individuals.

The fund generally expects to effect its creations and redemptions for cash rather than in-kind securities and may recognize more capital gains and be less tax-efficient than if it were to redeem in-kind. Because the fund generally expects to effect its redemptions for cash, rather than in-kind distributions, it may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds, which involves transaction costs. If the fund recognizes gain on these sales, this generally will cause the fund to recognize gain it might not otherwise have recognized if it were to distribute portfolio securities in-kind, or to recognize such gain sooner than would otherwise be required. The fund generally intends to distribute these gains to shareholders to avoid being taxed on these gains at the fund level and otherwise comply with applicable tax rules. This may cause shareholders to be subject to tax on gains they would not otherwise be subject to or at an earlier date then if the fund effected redemptions in-kind.

If investors buy shares when a fund has realized but not yet distributed income or capital gains, they will be "buying a dividend" by paying the full price for the shares and then receiving a portion of the price back in the form of a taxable distribution.

Any taxable distributions investors receive will normally be taxable to them when they receive them.

Taxes on Transactions

Purchases and sales of shares, as well as purchases and redemptions of Creation Units, may result in a capital gain or loss for federal tax purposes.

Fund Services

Fund Management

Adviser

FIMM. The Adviser is the fund's manager. The address of the Adviser is 245 Summer Street, Boston, Massachusetts 02210.

As of December 31, 2017, the Adviser had approximately $745.5 billion in discretionary assets under management, and approximately $2.45 trillion when combined with all of its affiliates' assets under management.

As the manager, the Adviser has overall responsibility for directing the fund's investments and handling its business affairs.

Sub-Adviser(s)

FMR Investment Management (UK) Limited (FMR UK), at 1 St. Martin's Le Grand, London, EC1A 4AS, United Kingdom, serves as a sub-adviser for the fund. As of December 31, 2017, FMR UK had approximately $22.2 billion in discretionary assets under management. FMR UK may provide investment research and advice on issuers based outside the United States and may also provide investment advisory services for the fund. FMR UK is an affiliate of the Adviser.

Fidelity Management & Research (Hong Kong) Limited (FMR H.K.), at Floor 19, 41 Connaught Road Central, Hong Kong, serves as a sub-adviser for the fund. As of December 31, 2017, FMR H.K. had approximately $18.2 billion in discretionary assets under management. FMR H.K. may provide investment research and advice on issuers based outside the United States and may also provide investment advisory services for the fund. FMR H.K. is an affiliate of the Adviser.

Fidelity Management & Research (Japan) Limited (FMR Japan), at Kamiyacho Prime Place, 1-17, Toranomon-4-Chome, Minato-ku, Tokyo, Japan, serves as a sub-adviser for the fund. FMR Japan was organized in 2008 to provide investment research and advice on issuers based outside the United States. FMR Japan may provide investment research and advice on issuers based outside the United States and may also provide investment advisory services for the fund. FMR Japan is an affiliate of the Adviser.

Portfolio Manager(s)

Brandon Bettencourt is co-manager of the fund, which he has managed since June 2018. He also manages other funds. Since joining Fidelity Investments in 2008, Mr. Bettencourt has worked as a research associate, portfolio analyst, and portfolio manager.

Jay Small is co-manager of the fund, which he has managed since June 2018. He also manages other funds. Since joining Fidelity Investments in 2010, Mr. Small has worked as a corporate bond trader and portfolio manager.

The statement of additional information (SAI) provides additional information about the compensation of, any other accounts managed by, and any fund shares held by the portfolio managers.

From time to time a manager, analyst, or other Fidelity employee may express views regarding a particular company, security, industry, or market sector. The views expressed by any such person are the views of only that individual as of the time expressed and do not necessarily represent the views of Fidelity or any other person in the Fidelity organization. Any such views are subject to change at any time based upon market or other conditions and Fidelity disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for a Fidelity^® fund are based on numerous factors, may not be relied on as an indication of trading intent on behalf of any Fidelity^® fund.

Advisory Fee(s)

The fund pays a management fee to the Adviser. The management fee is calculated and paid to the Adviser every month. The Adviser pays all of the other expenses of the fund with limited exceptions.

The fund's annual management fee rate is 0.15% of its average net assets.

The Adviser pays FMR UK, FMR H.K., and FMR Japan for providing sub-advisory services.

The basis for the Board of Trustees approving the management contract and sub-advisory agreements for the fund will be included in the fund's annual report for the fiscal period ending August 31, 2018, when available.

From time to time, the Adviser or its affiliates may agree to reimburse or waive certain fund expenses while retaining the ability to be repaid if expenses fall below the specified limit prior to the end of the fiscal year.

Reimbursement or waiver arrangements can decrease expenses and boost performance.

Fund Distribution

FDC distributes the fund's shares.

Intermediaries may receive from the Adviser, FDC, and/or their affiliates compensation for providing recordkeeping and administrative services, as well as other retirement plan expenses, and compensation for services intended to result in the sale of fund shares. These payments are described in more detail in this section and in the SAI.

Distribution and Service Plan(s)

While the fund will not make direct payments for distribution or shareholder support services, the fund has adopted a Distribution and Service Plan pursuant to Rule 12b-1 under the 1940 Act with respect to its shares. The Plan recognizes that the Adviser or FMR may use its management fee revenues, as well as its past profits or its resources from any other source, to pay FDC for expenses incurred in connection with providing services intended to result in the sale of shares of the fund and/or shareholder support services. The Adviser or FMR, directly or through FDC, may pay significant amounts to intermediaries that provide those services. Currently, the Board of Trustees of the fund has authorized such payments for shares of the fund.

If payments made by the Adviser or FMR to FDC or to intermediaries under the Distribution and Service Plan were considered to be paid out of the fund's assets on an ongoing basis, they might increase the cost of your investment and might cost you more than paying other types of sales charges.

No dealer, sales representative, or any other person has been authorized to give any information or to make any representations, other than those contained in this prospectus and in the related SAI, in connection with the offer contained in this prospectus. If given or made, such other information or representations must not be relied upon as having been authorized by the fund or FDC. This prospectus and the related SAI do not constitute an offer by the fund or by FDC to sell shares of the fund to or to buy shares of the fund from any person to whom it is unlawful to make such offer.

Other Service Providers

State Street Bank and Trust Company serves as the fund's transfer agent and custodian, and is located at 1 Lincoln Street, Boston, Massachusetts, 02111.

Appendix

Additional Index Information

The Fidelity Low Duration Investment Grade Factor Index℠ is designed to optimize the balance of interest rate risk and credit risk such that both returns and risk measures may be improved relative to traditional U.S. investment grade floating rate note indices (Index).

The Index was created by the Adviser using a rules-based proprietary index methodology described under the heading "Principal Investment Strategies" in the "Fund Basics - Investment Details" section of this prospectus.

The fund is entitled to use its Index pursuant to a licensing arrangement with the Adviser.

The fund and the Adviser have each adopted policies and procedures designed to minimize potential conflicts of interest in connection with the management of the fund.

Additional information regarding the index is available on www.fidelity.com.

BLOOMBERG is a trademark and service mark of Bloomberg Finance L.P. or its affiliates. Bloomberg Finance L.P. and its affiliates (collectively, “Bloomberg”) are not affiliated with FMR Co., Inc. (FMRC) (“Client”). Bloomberg’s association with Client is to act as the calculation agent of The Fidelity Low Duration Investment Grade Factor Index℠, which is the property of Client. Bloomberg does not guarantee the timeliness, accuracy, or completeness of any data or information relating to the Index. Bloomberg makes no warranty, express or implied, as to the Index, any data or values relating thereto or any financial product or instrument linked to, using as a component thereof or based on the Index (“Products”) or results to be obtained therefrom, and expressly disclaims all warranties of merchantability and fitness for a particular purpose with respect thereto. To the maximum extent allowed by law, Bloomberg, its licensors, and its and their respective employees, contractors, agents, suppliers, and vendors shall have no liability or responsibility whatsoever for any injury or damages—whether direct, indirect, consequential, incidental, punitive, or otherwise—arising in connection with the Index, any data or values relating thereto or any Products—whether arising from their negligence or otherwise.

FMRC is the index provider. FMRC is an affiliated person of the fund's investment adviser and as such is an affiliated index provider. FMRC makes no representation or warranty, express or implied, to the owners of shares of the fund or any member of the public regarding the advisability of investing in securities generally or in the fund particularly or the ability of the fund to track the Index or of the ability of the Index to operate as designed. FMRC has no obligation to take the needs of the funds or the owners of shares of the funds into consideration in determining, composing, or calculating the Index. FMRC does not make any express or implied warranties, and expressly disclaims all warranties of merchantability or fitness for a particular purpose or use with respect to the Index or any data included therein. FMRC does not guarantee the accuracy, completeness, or performance of the Index or the data included therein and shall have no liability in connection with the Index or Index calculation, errors, omissions or interruptions of any Fidelity Index or any data included therein. FMRC has contracted with an independent calculation agent to calculate the Index. Without limiting any of the foregoing, in no event shall FMRC have any liability for any special, punitive, direct, indirect or consequential damages (including lost profits) arising out of matters relating to the use of the Index, even if notified of the possibility of such damages.

You can obtain additional information about the fund. A description of the fund's policies and procedures for disclosing its holdings is available in its SAI and on Fidelity's web sites. The SAI also includes more detailed information about the fund and its investments. The SAI is incorporated herein by reference (legally forms a part of the prospectus). A financial report will be available once the fund has completed its first annual or semi-annual period. The fund's annual and semi-annual reports also include additional information. The fund's annual report includes a discussion of the fund's holdings and recent market conditions and the fund's investment strategies that affected performance.

For a free copy of any of these documents or to request other information or ask questions about the fund, call Fidelity at 1-800-FIDELITY. In addition, you may visit Fidelity's web site at www.fidelity.com for a free copy of a prospectus, SAI, or annual or semi-annual report or to request other information.

The SAI, the fund's annual and semi-annual reports and other related materials are available from the Electronic Data Gathering, Analysis, and Retrieval (EDGAR) Database on the SEC's web site (http://www.sec.gov). You can obtain copies of this information, after paying a duplicating fee, by sending a request by e-mail to publicinfo@sec.gov or by writing the Public Reference Section of the SEC, Washington, D.C. 20549-1520. You can also review and copy information about the fund, including the fund's SAI, at the SEC's Public Reference Room in Washington, D.C. Call 1-202-551-8090 for information on the operation of the SEC's Public Reference Room.

Investment Company Act of 1940, File Number, 811-22796

FDC is a member of the Securities Investor Protection Corporation (SIPC). You may obtain information about SIPC, including the SIPC brochure, by visiting www.sipc.org or calling SIPC at 202-371-8300.

Fidelity Low Duration Investment Grade Factor Index is a service mark of FMR LLC.

Any third-party marks that may appear above are the marks of their respective owners.

1.9887640.101

LDE-PRO-0618

Fund	Ticker
Fidelity® Low Duration Bond Factor ETF	FLDR

Fund of Fidelity Merrimack Street Trust

STATEMENT OF ADDITIONAL INFORMATION

Principal U.S. Listing Exchange: Cboe BZX Exchange, Inc.

June 11, 2018

This statement of additional information (SAI) is not a prospectus. An annual report for the fund will be available once the fund has completed its first annual period.

To obtain a free additional copy of the prospectus or SAI, dated June 11, 2018, or an annual report, please call Fidelity at 1-800-FIDELITY or visit Fidelity’s web site at www.fidelity.com.

LDE-PTB-0618
1.9887641.101

245 Summer Street, Boston, MA 02210

TABLE OF CONTENTS

GENERAL DESCRIPTION OF THE FUND
INVESTMENT POLICIES AND LIMITATIONS
EXCHANGE TRADED FUND RISKS
PORTFOLIO TRANSACTIONS
VALUATION
BUYING AND SELLING INFORMATION
DISTRIBUTIONS AND TAXES
TRUSTEES AND OFFICERS
CONTROL OF INVESTMENT ADVISERS
MANAGEMENT CONTRACT
PROXY VOTING GUIDELINES
DISTRIBUTION SERVICES
TRANSFER AND SERVICE AGENT AGREEMENTS
SECURITIES LENDING
DESCRIPTION OF THE TRUST
FUND HOLDINGS INFORMATION
APPENDIX

GENERAL DESCRIPTION OF THE FUND

The fund is an exchange-traded fund that seeks to provide investment results that correspond, before fees and expenses, generally to the returns of a specified index. The fund issues and redeems shares on a continuous basis at net asset value per share (NAV) in aggregations of a specified number of shares called "Creation Units." Creation Units generally are issued in exchange for portfolio securities and/or cash. Shares are listed and traded on Cboe BZX Exchange, Inc. (CboeBZX). Shares trade in the secondary market at market prices that may differ from the shares' NAV. Shares are not individually redeemable, but are redeemable only in Creation Unit aggregations, and in exchange for portfolio securities and/or cash. A Creation Unit of the fund consists of a block of 25,000 shares. Shareholders who are not Authorized Participants (as defined herein), therefore, will not be able to purchase or redeem shares directly with or from the fund. Instead, most shareholders who are not Authorized Participants will buy and sell shares in the secondary market through a broker.

INVESTMENT POLICIES AND LIMITATIONS

The following policies and limitations supplement those set forth in the prospectus. Unless otherwise noted, whenever an investment policy or limitation states a maximum percentage of the fund's assets that may be invested in any security or other asset, or sets forth a policy regarding quality standards, such standard or percentage limitation will be determined immediately after and as a result of the fund's acquisition of such security or other asset. Accordingly, any subsequent change in values, net assets, or other circumstances will not be considered when determining whether the investment complies with the fund's investment policies and limitations.

The fund's fundamental investment policies and limitations cannot be changed without approval by a "majority of the outstanding voting securities" (as defined in the Investment Company Act of 1940 (1940 Act)) of the fund. However, except for the fundamental investment limitations listed below, the investment policies and limitations described in this SAI are not fundamental and may be changed without shareholder approval.

The following are the fund's fundamental investment limitations set forth in their entirety.

Diversification

The fund may not with respect to 75% of the fund's total assets, purchase the securities of any issuer (other than securities issued or guaranteed by the U.S. Government or any of its agencies or instrumentalities, or securities of other investment companies) if, as a result, (a) more than 5% of the fund's total assets would be invested in the securities of that issuer, or (b) the fund would hold more than 10% of the outstanding voting securities of that issuer.

Senior Securities

The fund may not issue senior securities, except in connection with the insurance program established by the fund pursuant to an exemptive order issued by the Securities and Exchange Commission or as otherwise permitted under the Investment Company Act of 1940.

Borrowing

The fund may not borrow money, except that the fund may borrow money for temporary or emergency purposes (not for leveraging or investment) in an amount not exceeding 33 1/3% of its total assets (including the amount borrowed) less liabilities (other than borrowings). Any borrowings that come to exceed this amount will be reduced within three days (not including Sundays and holidays) to the extent necessary to comply with the 33 1/3% limitation.

Underwriting

The fund may not underwrite securities issued by others, except to the extent that the fund may be considered an underwriter within the meaning of the Securities Act of 1933 in the disposition of restricted securities or in connection with investments in other investment companies.

Concentration

The fund will invest more than 25% of its total assets in securities of issuers in a particular industry to approximately the same extent that the fund’s index concentrates in the securities of issuers in a particular industry.

For purposes of the fund's concentration limitation discussed above, securities issued or guaranteed by the U.S. Government for any of its agencies or instrumentalities are not considered to be issued by members of any industry.

For purposes of the fund's concentration limitation discussed above, with respect to any investment in repurchase agreements collateralized by U.S. Government securities, Fidelity Investments Money Management, Inc. (FIMM) looks through to the U.S. Government securities.

For purposes of the fund's concentration limitation discussed above, with respect to any investment in Fidelity^® Money Market Central Fund and/or any non-money market central fund, FIMM looks through to the holdings of the central fund.

Real Estate

The fund may not purchase or sell real estate unless acquired as a result of ownership of securities or other instruments (but this shall not prevent the fund from investing in securities or other instruments backed by real estate or securities of companies engaged in the real estate business).

Commodities

The fund may not purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments (but this shall not prevent the fund from purchasing or selling options and futures contracts or from investing in securities or other instruments backed by physical commodities).

Loans

The fund may not lend any security or make any other loan if, as a result, more than 33 1/3% of its total assets would be lent to other parties, but this limitation does not apply to purchases of debt securities or to repurchase agreements, or to acquisitions of loans, loan participations or other forms of debt instruments. (This limitation does not apply to purchases of debt securities, to repurchase agreements, or to acquisitions of loans, loan participations or other forms of debt instruments.)

The following investment limitations are not fundamental and may be changed without shareholder approval.

Short Sales

The fund does not currently intend to sell securities short, unless it owns or has the right to obtain securities equivalent in kind and amount to the securities sold short, and provided that transactions in futures contracts, options, and swaps are not deemed to constitute selling securities short.

Margin Purchases

The fund does not currently intend to purchase securities on margin, except that the fund may obtain such short-term credits as are necessary for the clearance of transactions, and provided that margin payments in connection with futures contracts and options on futures contracts shall not constitute purchasing securities on margin.

Borrowing

The fund may borrow money only (a) from a bank or from a registered investment company or portfolio for which FIMM or an affiliate serves as investment adviser or (b) by engaging in reverse repurchase agreements with any party (reverse repurchase agreements are treated as borrowings for purposes of the fundamental borrowing investment limitation).

Illiquid Securities

The fund does not currently intend to purchase any security if, as a result, more than 10% of its net assets would be invested in securities that are deemed to be illiquid because they are subject to legal or contractual restrictions on resale or because they cannot be sold or disposed of in the ordinary course of business at approximately the prices at which they are valued.

For purposes of the fund's illiquid securities limitation discussed above, if through a change in values, net assets, or other circumstances, the fund were in a position where more than 10% of its net assets were invested in illiquid securities, it would consider appropriate steps to protect liquidity.

Loans

The fund does not currently intend to lend assets other than securities to other parties, except by (a) lending money (up to 15% of the fund's net assets) to a registered investment company or portfolio for which FIMM or an affiliate serves as investment adviser or (b) assuming any unfunded commitments in connection with the acquisition of loans, loan participations, or other forms of debt instruments.

In addition to the fund's fundamental and non-fundamental investment limitations discussed above:

In order to qualify as a "regulated investment company" under Subchapter M of the Internal Revenue Code of 1986, as amended, the fund currently intends to comply with certain diversification limits imposed by Subchapter M.

The following pages contain more detailed information about types of instruments in which the fund may invest, techniques the fund's adviser (or a sub-adviser) may employ in pursuit of the fund's investment objective, and a summary of related risks. The fund's adviser (or a sub-adviser) may not buy all of these instruments or use all of these techniques unless it believes that doing so will help the fund achieve its goal. However, the fund's adviser (or a sub-adviser) is not required to buy any particular instrument or use any particular technique even if to do so might benefit the fund.

On the following pages in this section titled "Investment Policies and Limitations," and except as otherwise indicated, references to "an adviser" or "the adviser" may relate to the fund's adviser or a sub-adviser, as applicable.

Affiliated Bank Transactions. A Fidelity^® fund may engage in transactions with financial institutions that are, or may be considered to be, "affiliated persons" of the fund under the 1940 Act. These transactions may involve repurchase agreements with custodian banks; short-term obligations of, and repurchase agreements with, the 50 largest U.S. banks (measured by deposits); municipal securities; U.S. Government securities with affiliated financial institutions that are primary dealers in these securities; short-term currency transactions; and short-term borrowings. In accordance with exemptive orders issued by the Securities and Exchange Commission (SEC), the Board of Trustees has established and periodically reviews procedures applicable to transactions involving affiliated financial institutions.

Asset-Backed Securities represent interests in pools of mortgages, loans, receivables, or other assets. Payment of interest and repayment of principal may be largely dependent upon the cash flows generated by the assets backing the securities and, in certain cases, supported by letters of credit, surety bonds, or other credit enhancements. Asset-backed security values may also be affected by other factors including changes in interest rates, the availability of information concerning the pool and its structure, the creditworthiness of the servicing agent for the pool, the originator of the loans or receivables, or the entities providing the credit enhancement. In addition, these securities may be subject to prepayment risk.

Borrowing. If a fund borrows money, its share price may be subject to greater fluctuation until the borrowing is paid off. If a fund makes additional investments while borrowings are outstanding, this may be considered a form of leverage.

Cash Management. A fund may hold uninvested cash or may invest it in cash equivalents such as money market securities, repurchase agreements, or shares of short-term bond or money market funds, including (for Fidelity^® funds and other advisory clients only) shares of Fidelity^® central funds. Generally, these securities offer less potential for gains than other types of securities.

Central Funds are special types of investment vehicles created by Fidelity for use by the Fidelity^® funds and other advisory clients. Central funds are used to invest in particular security types or investment disciplines, or for cash management. Central funds incur certain costs related to their investment activity (such as custodial fees and expenses), but do not pay additional management fees. The investment results of the portions of a Fidelity^® fund's assets invested in the central funds will be based upon the investment results of those funds.

Commodity Futures Trading Commission (CFTC) Notice of Exclusion. The trust, on behalf of the Fidelity^® fund to which this SAI relates, has filed with the National Futures Association a notice claiming an exclusion from the definition of the term "commodity pool operator" (CPO) under the Commodity Exchange Act, as amended, and the rules of the CFTC promulgated thereunder, with respect to the fund's operation. Accordingly, neither a fund nor its adviser is subject to registration or regulation as a commodity pool or a CPO. However, the CFTC has adopted certain rule amendments that significantly affect the continued availability of this exclusion, and may subject advisers to funds to regulation by the CFTC. As of the date of this SAI, the adviser does not expect to register as a CPO of the fund. However, there is no certainty that a fund or its adviser will be able to rely on an exclusion in the future as the fund's investments change over time. A fund may determine not to use investment strategies that trigger additional CFTC regulation or may determine to operate subject to CFTC regulation, if applicable. If a fund or its adviser operates subject to CFTC regulation, it may incur additional expenses.

Dollar-Weighted Average Maturity is derived by multiplying the value of each security by the time remaining to its maturity, adding these calculations, and then dividing the total by the value of a fund's portfolio. An obligation's maturity is typically determined on a stated final maturity basis, although there are some exceptions to this rule.

Under certain circumstances, a fund may invest in nominally long-term securities that have maturity shortening features of shorter-term securities, and the maturities of these securities may be deemed to be earlier than their ultimate maturity dates by virtue of an existing demand feature or an adjustable interest rate. Under other circumstances, if it is probable that the issuer of an instrument will take advantage of a maturity-shortening device, such as a call, refunding, or redemption provision, the date on which the instrument will probably be called, refunded, or redeemed may be considered to be its maturity date. The maturities of mortgage securities, including collateralized mortgage obligations, and some asset-backed securities are determined on a weighted average life basis, which is the average time for principal to be repaid. For a mortgage security, this average time is calculated by estimating the timing of principal payments, including unscheduled prepayments, during the life of the mortgage. The weighted average life of these securities is likely to be substantially shorter than their stated final maturity.

Duration is a measure of a bond's price sensitivity to a change in interest rates. For example, if a bond has a 5-year duration and interest rates rise 1%, the bond's value is likely to fall about 5%. Similarly, if a bond fund has a 5-year duration and interest rates rise 1%, the fund's value is likely to fall about 5%. For funds with exposure to foreign markets, there are many reasons why all of the bond holdings do not experience the same yield changes. These reasons include: the bonds are spread off of different yield curves around the world and these yield curves do not move in tandem; the shapes of these yield curves change; and sector and issuer yield spreads change. Other factors can influence a bond fund's performance and share price. Accordingly, a bond fund's actual performance will likely differ from the example.

Exchange Traded Funds (ETFs) are shares of other investment companies, commodity pools, or other entities that are traded on an exchange. Typically, assets underlying the ETF shares are stocks, though they may also be commodities or other instruments. An ETF may seek to replicate the performance of a specific index or may be actively managed.

Typically, shares of an ETF that tracks an index are expected to increase in value as the value of the underlying benchmark increases. However, in the case of inverse ETFs (also called "short ETFs" or "bear ETFs"), ETF shares are expected to increase in value as the value of the underlying benchmark decreases. Inverse ETFs seek to deliver the opposite of the performance of the benchmark they track and are often marketed as a way for investors to profit from, or at least hedge their exposure to, downward moving markets. Investments in inverse ETFs are similar to holding short positions in the underlying benchmark.

ETF shares are redeemable only in large blocks (typically, 50,000 shares) often called "creation units" by persons other than a fund, and are redeemed principally in-kind at each day's next calculated net asset value per share (NAV). ETFs typically incur fees that are separate from those fees incurred directly by a fund. A fund's purchase of ETFs results in the layering of expenses, such that the fund would indirectly bear a proportionate share of any ETF's operating expenses. Further, while traditional investment companies are continuously offered at NAV, ETFs are traded in the secondary market (e.g., on a stock exchange) on an intra-day basis at prices that may be above or below the value of their underlying portfolios.

Some of the risks of investing in an ETF that tracks an index are similar to those of investing in an indexed mutual fund, including tracking error risk (the risk of errors in matching the ETF's underlying assets to the index or other benchmark); and the risk that because an ETF that tracks an index is not actively managed, it cannot sell stocks or other assets as long as they are represented in the index or other benchmark. Other ETF risks include the risk that ETFs may trade in the secondary market at a discount from their NAV and the risk that the ETFs may not be liquid. ETFs also may be leveraged. Leveraged ETFs seek to deliver multiples of the performance of the index or other benchmark they track and use derivatives in an effort to amplify the returns (or decline, in the case of inverse ETFs) of the underlying index or benchmark. While leveraged ETFs may offer the potential for greater return, the potential for loss and the speed at which losses can be realized also are greater. Most leveraged and inverse ETFs "reset" daily, meaning they are designed to achieve their stated objectives on a daily basis. Leveraged and inverse ETFs can deviate substantially from the performance of their underlying benchmark over longer periods of time, particularly in volatile periods.

Exchange Traded Notes (ETNs) are a type of senior, unsecured, unsubordinated debt security issued by financial institutions that combines aspects of both bonds and ETFs. An ETN's returns are based on the performance of a market index or other reference asset minus fees and expenses. Similar to ETFs, ETNs are listed on an exchange and traded in the secondary market. However, unlike an ETF, an ETN can be held until the ETN's maturity, at which time the issuer will pay a return linked to the performance of the market index or other reference asset to which the ETN is linked minus certain fees. Unlike regular bonds, ETNs typically do not make periodic interest payments and principal typically is not protected.

ETNs also incur certain expenses not incurred by their applicable index. The market value of an ETN is determined by supply and demand, the current performance of the index or other reference asset, and the credit rating of the ETN issuer. The market value of ETN shares may differ from their intraday indicative value. The value of an ETN may also change due to a change in the issuer's credit rating. As a result, there may be times when an ETN's share trades at a premium or discount to its NAV. Some ETNs that use leverage in an effort to amplify the returns of an underlying index or other reference asset can, at times, be relatively illiquid and, thus, they may be difficult to purchase or sell at a fair price. Leveraged ETNs may offer the potential for greater return, but the potential for loss and speed at which losses can be realized also are greater.

Fund's Rights as an Investor. Fidelity^® funds do not intend to direct or administer the day-to-day operations of any company. A fund may, however, exercise its rights as a shareholder or lender and may communicate its views on important matters of policy to a company's management, board of directors, and shareholders, and holders of a company's other securities when such matters could have a significant effect on the value of the fund's investment in the company. The activities in which a fund may engage, either individually or in conjunction with others, may include, among others, supporting or opposing proposed changes in a company's corporate structure or business activities; seeking changes in a company's directors or management; seeking changes in a company's direction or policies; seeking the sale or reorganization of the company or a portion of its assets; supporting or opposing third-party takeover efforts; supporting the filing of a bankruptcy petition; or foreclosing on collateral securing a security. This area of corporate activity is increasingly prone to litigation and it is possible that a fund could be involved in lawsuits related to such activities. Such activities will be monitored with a view to mitigating, to the extent possible, the risk of litigation against a fund and the risk of actual liability if a fund is involved in litigation. No guarantee can be made, however, that litigation against a fund will not be undertaken or liabilities incurred. A fund's proxy voting guidelines are included in its SAI.

Futures. The success of any strategy involving futures depends on an adviser's analysis of many economic and mathematical factors and a fund's return may be higher if it never invested in such instruments. Additionally, some of the contracts discussed below are new instruments without a trading history and there can be no assurance that a market for the instruments will continue to exist. Government legislation or regulation could affect the use of such instruments and could limit a fund's ability to pursue its investment strategies.

Futures Contracts. In purchasing a futures contract, the buyer agrees to purchase a specified underlying instrument at a specified future date. In selling a futures contract, the seller agrees to sell a specified underlying instrument at a specified date. Futures contracts are standardized, exchange-traded contracts and the price at which the purchase and sale will take place is fixed when the buyer and seller enter into the contract. Some currently available futures contracts are based on specific securities or baskets of securities, some are based on commodities or commodities indexes (for funds that seek commodities exposure), and some are based on indexes of securities prices (including foreign indexes for funds that seek foreign exposure). In addition, some currently available futures contracts are based on Eurodollars. Positions in Eurodollar futures reflect market expectations of forward levels of three-month London Interbank Offered Rate (LIBOR) rates. Futures on indexes and futures not calling for physical delivery of the underlying instrument will be settled through cash payments rather than through delivery of the underlying instrument. Futures can be held until their delivery dates, or can be closed out by offsetting purchases or sales of futures contracts before then if a liquid market is available. A fund may realize a gain or loss by closing out its futures contracts.

The value of a futures contract tends to increase and decrease in tandem with the value of its underlying instrument. Therefore, purchasing futures contracts will tend to increase a fund's exposure to positive and negative price fluctuations in the underlying instrument, much as if it had purchased the underlying instrument directly. When a fund sells a futures contract, by contrast, the value of its futures position will tend to move in a direction contrary to the market for the underlying instrument. Selling futures contracts, therefore, will tend to offset both positive and negative market price changes, much as if the underlying instrument had been sold.

The purchaser or seller of a futures contract or an option for a futures contract is not required to deliver or pay for the underlying instrument or the final cash settlement price, as applicable, unless the contract is held until the delivery date. However, both the purchaser and seller are required to deposit "initial margin" with a futures broker, known as a futures commission merchant (FCM), when the contract is entered into. If the value of either party's position declines, that party will be required to make additional "variation margin" payments to settle the change in value on a daily basis. This process of "marking to market" will be reflected in the daily calculation of open positions computed in a fund's NAV. The party that has a gain is entitled to receive all or a portion of this amount. Initial and variation margin payments do not constitute purchasing securities on margin for purposes of a fund's investment limitations. Variation margin does not represent a borrowing or loan by a fund, but is instead a settlement between a fund and the FCM of the amount one would owe the other if the fund's contract expired. In the event of the bankruptcy or insolvency of an FCM that holds margin on behalf of a fund, the fund may be entitled to return of margin owed to it only in proportion to the amount received by the FCM's other customers, potentially resulting in losses to the fund. A fund is also required to segregate liquid assets equivalent to the fund's outstanding obligations under the contract in excess of the initial margin and variation margin, if any.

Although futures exchanges generally operate similarly in the United States and abroad, foreign futures exchanges may follow trading, settlement, and margin procedures that are different from those for U.S. exchanges. Futures contracts traded outside the United States may not involve a clearing mechanism or related guarantees and may involve greater risk of loss than U.S.-traded contracts, including potentially greater risk of losses due to insolvency of a futures broker, exchange member, or other party that may owe initial or variation margin to a fund. Because initial and variation margin payments may be measured in foreign currency, a futures contract traded outside the United States may also involve the risk of foreign currency fluctuation.

There is no assurance a liquid market will exist for any particular futures contract at any particular time. Exchanges may establish daily price fluctuation limits for futures contracts, and may halt trading if a contract's price moves upward or downward more than the limit in a given day. On volatile trading days when the price fluctuation limit is reached or a trading halt is imposed, it may be impossible to enter into new positions or close out existing positions. The daily limit governs only price movements during a particular trading day and therefore does not limit potential losses because the limit may work to prevent the liquidation of unfavorable positions. For example, futures prices have occasionally moved to the daily limit for several consecutive trading days with little or no trading, thereby preventing prompt liquidation of positions and subjecting some holders of futures contracts to substantial losses.

If the market for a contract is not liquid because of price fluctuation limits or other market conditions, it could prevent prompt liquidation of unfavorable positions, and potentially could require a fund to continue to hold a position until delivery or expiration regardless of changes in its value. As a result, a fund's access to other assets held to cover its futures positions could also be impaired. These risks may be heightened for commodity futures contracts, which have historically been subject to greater price volatility than exists for instruments such as stocks and bonds.

Because there are a limited number of types of exchange-traded futures contracts, it is likely that the standardized contracts available will not match a fund's current or anticipated investments exactly. A fund may invest in futures contracts based on securities with different issuers, maturities, or other characteristics from the securities in which the fund typically invests, which involves a risk that the futures position will not track the performance of the fund's other investments.

Futures prices can also diverge from the prices of their underlying instruments, even if the underlying instruments match a fund's investments well. Futures prices are affected by such factors as current and anticipated short-term interest rates, changes in volatility of the underlying instrument, and the time remaining until expiration of the contract, which may not affect security prices the same way. Imperfect correlation may also result from differing levels of demand in the futures markets and the securities markets, from structural differences in how futures and securities are traded, or from imposition of daily price fluctuation limits or trading halts. A fund may purchase or sell futures contracts with a greater or lesser value than the securities it wishes to hedge or intends to purchase in order to attempt to compensate for differences in volatility between the contract and the securities, although this may not be successful in all cases. If price changes in a fund's futures positions are poorly correlated with its other investments, the positions may fail to produce anticipated gains or result in losses that are not offset by gains in other investments. In addition, the price of a commodity futures contract can reflect the storage costs associated with the purchase of the physical commodity.

Futures contracts on U.S. Government securities historically have reacted to an increase or decrease in interest rates in a manner similar to the manner in which the underlying U.S. Government securities reacted. To the extent, however, that a fund enters into such futures contracts, the value of these futures contracts will not vary in direct proportion to the value of the fund's holdings of U.S. Government securities. Thus, the anticipated spread between the price of the futures contract and the hedged security may be distorted due to differences in the nature of the markets. The spread also may be distorted by differences in initial and variation margin requirements, the liquidity of such markets and the participation of speculators in such markets.

Hybrid and Preferred Securities. A hybrid security may be a debt security, warrant, convertible security, certificate of deposit or other evidence of indebtedness on which the value of the interest on or principal of which is determined by reference to changes in the value of a reference instrument or financial strength of a reference entity (e.g., a security or other financial instrument, asset, currency, interest rate, commodity, index, or business entity such as a financial institution). Another example is contingent convertible securities, which are fixed income securities that, under certain circumstances, either convert into common stock of the issuer or undergo a principal write-down by a predetermined percentage if the issuer's capital ratio falls below a predetermined trigger level. The liquidation value of such a security may be reduced upon a regulatory action and without the need for a bankruptcy proceeding. Preferred securities may take the form of preferred stock and represent an equity or ownership interest in an issuer that pays dividends at a specified rate and that has precedence over common stock in the payment of dividends. In the event an issuer is liquidated or declares bankruptcy, the claims of owners of bonds generally take precedence over the claims of those who own preferred and common stock.

The risks of investing in hybrid and preferred securities reflect a combination of the risks of investing in securities, options, futures and currencies. An investment in a hybrid or preferred security may entail significant risks that are not associated with a similar investment in a traditional debt or equity security. The risks of a particular hybrid or preferred security will depend upon the terms of the instrument, but may include the possibility of significant changes in the value of any applicable reference instrument. Such risks may depend upon factors unrelated to the operations or credit quality of the issuer of the hybrid or preferred security. Hybrid and preferred securities are potentially more volatile and carry greater market and liquidity risks than traditional debt or equity securities. Also, the price of the hybrid or preferred security and any applicable reference instrument may not move in the same direction or at the same time. In addition, because hybrid and preferred securities may be traded over-the-counter or in bilateral transactions with the issuer of the security, hybrid and preferred securities may be subject to the creditworthiness of the counterparty of the security and their values may decline substantially if the counterparty's creditworthiness deteriorates. In addition, uncertainty regarding the tax and regulatory treatment of hybrid and preferred securities may reduce demand for such securities and tax and regulatory considerations may limit the extent of a fund's investments in certain hybrid and preferred securities.

Illiquid Securities cannot be sold or disposed of in the ordinary course of business at approximately the prices at which they are valued. Difficulty in selling securities may result in a loss or may be costly to a fund.

Under the supervision of the Board of Trustees, a Fidelity^® fund's adviser determines the liquidity of the fund's investments and, through reports from the fund's adviser, the Board monitors investments in illiquid securities.

Various factors may be considered in determining the liquidity of a fund's investments, including (1) the frequency and volume of trades and quotations, (2) the number of dealers and prospective purchasers in the marketplace, (3) dealer undertakings to make a market, and (4) the nature of the security and the market in which it trades (including any demand, put or tender features, the mechanics and other requirements for transfer, any letters of credit or other credit enhancement features, any ratings, the number of holders, the method of soliciting offers, the time required to dispose of the security, and the ability to assign or offset the rights and obligations of the security).

Increasing Government Debt. The total public debt of the United States and other countries around the globe as a percent of gross domestic product has grown rapidly since the beginning of the 2008 financial downturn. Although high debt levels do not necessarily indicate or cause economic problems, they may create certain systemic risks if sound debt management practices are not implemented.

A high national debt level may increase market pressures to meet government funding needs, which may drive debt cost higher and cause a country to sell additional debt, thereby increasing refinancing risk. A high national debt also raises concerns that a government will not be able to make principal or interest payments when they are due. In the worst case, unsustainable debt levels can decline the valuation of currencies, and can prevent a government from implementing effective counter-cyclical fiscal policy in economic downturns.

On August 5, 2011, Standard & Poor's Ratings Services lowered its long-term sovereign credit rating on the United States one level to "AA+" from "AAA." While Standard & Poor's Ratings Services affirmed the United States' short-term sovereign credit rating as "A-1+," there is no guarantee that Standard & Poor's Ratings Services will not decide to lower this rating in the future. Standard & Poor's Ratings Services stated that its decision was prompted by its view on the rising public debt burden and its perception of greater policymaking uncertainty. The market prices and yields of securities supported by the full faith and credit of the U.S. Government may be adversely affected by Standard & Poor's Ratings Services decisions to downgrade the long-term sovereign credit rating of the United States.

Indexed Securities are instruments whose prices are indexed to the prices of other securities, securities indexes, or other financial indicators. Indexed securities typically, but not always, are debt securities or deposits whose values at maturity or coupon rates are determined by reference to a specific instrument, statistic, or measure.

Indexed securities also include commercial paper, certificates of deposit, and other fixed-income securities whose values at maturity or coupon interest rates are determined by reference to the returns of particular stock indexes. Indexed securities can be affected by stock prices as well as changes in interest rates and the creditworthiness of their issuers and may not track the indexes as accurately as direct investments in the indexes.

The performance of indexed securities depends to a great extent on the performance of the instrument or measure to which they are indexed, and may also be influenced by interest rate changes in the United States and abroad. Indexed securities may be more volatile than the underlying instruments or measures. Indexed securities are also subject to the credit risks associated with the issuer of the security, and their values may decline substantially if the issuer's creditworthiness deteriorates. Recent issuers of indexed securities have included banks, corporations, and certain U.S. Government agencies.

Insolvency of Issuers, Counterparties, and Intermediaries. Issuers of fund portfolio securities or counterparties to fund transactions that become insolvent or declare bankruptcy can pose special investment risks. In each circumstance, risk of loss, valuation uncertainty, increased illiquidity, and other unpredictable occurrences may negatively impact an investment. Each of these risks may be amplified in foreign markets, where security trading, settlement, and custodial practices can be less developed than those in the U.S. markets, and bankruptcy laws differ from those of the U.S.

As a general matter, if the issuer of a fund portfolio security is liquidated or declares bankruptcy, the claims of owners of bonds and preferred stock have priority over the claims of common stock owners. These events can negatively impact the value of the issuer's securities and the results of related proceedings can be unpredictable.

If a counterparty to a fund transaction, such as a swap transaction, a short sale, a borrowing, or other complex transaction becomes insolvent, the fund may be limited in its ability to exercise rights to obtain the return of related fund assets or in exercising other rights against the counterparty. In addition, insolvency and liquidation proceedings take time to resolve, which can limit or preclude a fund's ability to terminate a transaction or obtain related assets or collateral in a timely fashion. Uncertainty may also arise upon the insolvency of a securities or commodities intermediary such as a broker-dealer or futures commission merchant with which a fund has pending transactions. If an intermediary becomes insolvent, while securities positions and other holdings may be protected by U.S. or foreign laws, it is sometimes difficult to determine whether these protections are available to specific trades based on the circumstances. Receiving the benefit of these protections can also take time to resolve, which may result in illiquid positions.

Interfund Borrowing and Lending Program. Pursuant to an exemptive order issued by the SEC, a Fidelity^® fund may lend money to, and borrow money from, other funds advised by Fidelity Management & Research Company (FMR) or its affiliates. A Fidelity^® fund will borrow through the program only when the costs are equal to or lower than the costs of bank loans. A Fidelity^® fund will lend through the program only when the returns are higher than those available from an investment in repurchase agreements. Interfund loans and borrowings normally extend overnight, but can have a maximum duration of seven days. Loans may be called on one day's notice. A Fidelity^® fund may have to borrow from a bank at a higher interest rate if an interfund loan is called or not renewed. Any delay in repayment to a lending fund could result in a lost investment opportunity or additional borrowing costs.

Investment-Grade Debt Securities. Investment-grade debt securities include all types of debt instruments that are of medium and high-quality. Investment-grade debt securities include repurchase agreements collateralized by U.S. Government securities as well as repurchase agreements collateralized by equity securities, non-investment-grade debt, and all other instruments in which a fund can perfect a security interest, provided the repurchase agreement counterparty has an investment-grade rating. Some investment-grade debt securities may possess speculative characteristics and may be more sensitive to economic changes and to changes in the financial conditions of issuers. An investment-grade rating means the security or issuer is rated investment-grade by a credit rating agency registered as a nationally recognized statistical rating organization (NRSRO) with the SEC (for example, Moody's Investors Service, Inc.), or is unrated but considered to be of equivalent quality by a fund's adviser. For purposes of determining the maximum maturity of an investment-grade debt security, an adviser may take into account normal settlement periods.

Real Estate Investment Trusts. Real estate investment trusts issue debt securities to fund the purchase and/or development of commercial properties. The value of these debt securities may be affected by changes in the value of the underlying property owned by the trusts, the creditworthiness of the trusts, interest rates, and tax and regulatory requirements. Real estate investment trusts are dependent upon management skill and the cash flow generated by the properties owned by the trusts. Real estate investment trusts are at the risk of the possibility of failing to qualify for tax-free status of income under the Internal Revenue Code and failing to maintain exemption from the 1940 Act.

Reforms and Government Intervention in the Financial Markets. Economic downturns can trigger various economic, legal, budgetary, tax, and regulatory reforms across the globe. Instability in the financial markets in the wake of the 2008 economic downturn led the U.S. Government and other governments to take a number of unprecedented actions designed to support certain financial institutions and segments of the financial markets that experienced extreme volatility, and in some cases, a lack of liquidity. Reforms are ongoing and their effects are uncertain. Federal, state, local, foreign, and other governments, their regulatory agencies, or self-regulatory organizations may take actions that affect the regulation of the instruments in which a fund invests, or the issuers of such instruments, in ways that are unforeseeable. Reforms may also change the way in which a fund is regulated and could limit or preclude a fund's ability to achieve its investment objective or engage in certain strategies. Also, while reforms generally are intended to strengthen markets, systems, and public finances, they could affect fund expenses and the value of fund investments.

The value of a fund's holdings is also generally subject to the risk of future local, national, or global economic disturbances based on unknown weaknesses in the markets in which a fund invests. In the event of such a disturbance, the issuers of securities held by a fund may experience significant declines in the value of their assets and even cease operations, or may receive government assistance accompanied by increased restrictions on their business operations or other government intervention. In addition, it is not certain that the U.S. Government or foreign governments will intervene in response to a future market disturbance and the effect of any such future intervention cannot be predicted.

Repurchase Agreements involve an agreement to purchase a security and to sell that security back to the original seller at an agreed-upon price. The resale price reflects the purchase price plus an agreed-upon incremental amount which is unrelated to the coupon rate or maturity of the purchased security. As protection against the risk that the original seller will not fulfill its obligation, the securities are held in a separate account at a bank, marked-to-market daily, and maintained at a value at least equal to the sale price plus the accrued incremental amount. The value of the security purchased may be more or less than the price at which the counterparty has agreed to purchase the security. In addition, delays or losses could result if the other party to the agreement defaults or becomes insolvent. A fund may be limited in its ability to exercise its right to liquidate assets related to a repurchase agreement with an insolvent counterparty. A Fidelity^® fund may engage in repurchase agreement transactions with parties whose creditworthiness has been reviewed and found satisfactory by the fund's adviser.

Restricted Securities are subject to legal restrictions on their sale. Difficulty in selling securities may result in a loss or be costly to a fund. Restricted securities generally can be sold in privately negotiated transactions, pursuant to an exemption from registration under the Securities Act of 1933 (1933 Act), or in a registered public offering. Where registration is required, the holder of a registered security may be obligated to pay all or part of the registration expense and a considerable period may elapse between the time it decides to seek registration and the time it may be permitted to sell a security under an effective registration statement. If, during such a period, adverse market conditions were to develop, the holder might obtain a less favorable price than prevailed when it decided to seek registration of the security.

Reverse Repurchase Agreements. In a reverse repurchase agreement, a fund sells a security to another party, such as a bank or broker-dealer, in return for cash and agrees to repurchase that security at an agreed-upon price and time. A Fidelity^® fund may enter into reverse repurchase agreements with parties whose creditworthiness has been reviewed and found satisfactory by the fund's adviser. Such transactions may increase fluctuations in the market value of a fund's assets and, if applicable, a fund's yield, and may be viewed as a form of leverage.

Securities Lending. A Fidelity^® fund may lend securities to parties such as broker-dealers or other institutions, including an affiliate. Securities lending allows a fund to retain ownership of the securities loaned and, at the same time, earn additional income. The borrower provides the fund with collateral in an amount at least equal to the value of the securities loaned. The fund seeks to maintain the ability to obtain the right to vote or consent on proxy proposals involving material events affecting securities loaned. If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, a fund could experience delays and costs in recovering the securities loaned or in gaining access to the collateral. If a fund is not able to recover the securities loaned, the fund may sell the collateral and purchase a replacement investment in the market. The value of the collateral could decrease below the value of the replacement investment by the time the replacement investment is purchased. For a Fidelity^® fund, loans will be made only to parties deemed by the fund's adviser to be in good standing and when, in the adviser's judgment, the income earned would justify the risks.

Cash received as collateral through loan transactions may be invested in other eligible securities, including shares of a money market fund. Investing this cash subjects that investment, as well as the securities loaned, to market appreciation or depreciation.

Securities of Other Investment Companies, including shares of closed-end investment companies (which include business development companies (BDCs)), unit investment trusts, and open-end investment companies, represent interests in professionally managed portfolios that may invest in any type of instrument. Investing in other investment companies involves substantially the same risks as investing directly in the underlying instruments, but may involve additional expenses at the underlying investment company-level, such as portfolio management fees and operating expenses. Fees and expenses incurred indirectly by a fund as a result of its investment in shares of one or more other investment companies generally are referred to as "acquired fund fees and expenses" and may appear as a separate line item in a fund's prospectus fee table. For certain investment companies, such as BDCs, these expenses may be significant. Certain types of investment companies, such as closed-end investment companies, issue a fixed number of shares that trade on a stock exchange or over-the-counter at a premium or a discount to their NAV. Others are continuously offered at NAV, but may also be traded in the secondary market.

The securities of closed-end funds may be leveraged. As a result, a fund may be indirectly exposed to leverage through an investment in such securities. An investment in securities of closed-end funds that use leverage may expose a fund to higher volatility in the market value of such securities and the possibility that the fund's long-term returns on such securities will be diminished.

The extent to which a fund can invest in securities of other investment companies may be limited by federal securities laws.

Sources of Liquidity or Credit Support. Issuers may employ various forms of credit and liquidity enhancements, including letters of credit, guarantees, swaps, puts, and demand features, and insurance provided by domestic or foreign entities such as banks and other financial institutions. An adviser and its affiliates may rely on their evaluation of the credit of the issuer or the credit of the liquidity or credit enhancement provider in determining whether to purchase or hold a security supported by such enhancement. In evaluating the credit of a foreign bank or other foreign entities, factors considered may include whether adequate public information about the entity is available and whether the entity may be subject to unfavorable political or economic developments, currency controls, or other government restrictions that might affect its ability to honor its commitment. Changes in the credit quality of the issuer and/or entity providing the enhancement could affect the value of the security or a fund's share price.

Stripped Securities are the separate income or principal components of a debt security. The risks associated with stripped securities are similar to those of other debt securities, although stripped securities may be more volatile, and the value of certain types of stripped securities may move in the same direction as interest rates. U.S. Treasury securities that have been stripped by a Federal Reserve Bank are obligations issued by the U.S. Treasury.

Privately stripped government securities are created when a dealer deposits a U.S. Treasury security or other U.S. Government security with a custodian for safekeeping. The custodian issues separate receipts for the coupon payments and the principal payment, which the dealer then sells.

Structured Securities (also called "structured notes") are derivative debt securities, the interest rate on or principal of which is determined by an unrelated indicator. The value of the interest rate on and/or the principal of structured securities is determined by reference to changes in the value of a reference instrument (e.g., a security or other financial instrument, asset, currency, interest rate, commodity, or index) or the relative change in two or more reference instruments. A structured security may be positively, negatively, or both positively and negatively indexed; that is, its value or interest rate may increase or decrease if the value of the reference instrument increases. Similarly, its value or interest rate may increase or decrease if the value of the reference instrument decreases. Further, the change in the principal amount payable with respect to, or the interest rate of, a structured security may be calculated as a multiple of the percentage change (positive or negative) in the value of the underlying reference instrument(s); therefore, the value of such structured security may be very volatile. Structured securities may entail a greater degree of market risk than other types of debt securities because the investor bears the risk of the reference instrument. Structured securities may also be more volatile, less liquid, and more difficult to accurately price than less complex securities or more traditional debt securities. In addition, because structured securities generally are traded over-the-counter, structured securities are subject to the creditworthiness of the counterparty of the structured security, and their values may decline substantially if the counterparty's creditworthiness deteriorates.

Transfer Agent Bank Accounts. Proceeds from shareholder purchases of a Fidelity^® fund may pass through a series of demand deposit bank accounts before being held at the fund's custodian. Redemption proceeds may pass from the custodian to the shareholder through a similar series of bank accounts.

If a bank account is registered to the transfer agent or an affiliate, who acts as an agent for the fund when opening, closing, and conducting business in the bank account, the transfer agent or an affiliate may invest overnight balances in the account in repurchase agreements. Any balances that are not invested in repurchase agreements remain in the bank account overnight. Any risks associated with such an account are investment risks of the fund. The fund faces the risk of loss of these balances if the bank becomes insolvent.

Variable and Floating Rate Securities provide for periodic adjustments in the interest rate paid on the security. Variable rate securities provide for a specified periodic adjustment in the interest rate, while floating rate securities have interest rates that change whenever there is a change in a designated benchmark rate or the issuer's credit quality, sometimes subject to a cap or floor on such rate. Some variable or floating rate securities are structured with put features that permit holders to demand payment of the unpaid principal balance plus accrued interest from the issuers or certain financial intermediaries. For purposes of determining the maximum maturity of a variable or floating rate security, a fund's adviser may take into account normal settlement periods.

When-Issued and Forward Purchase or Sale Transactions involve a commitment to purchase or sell specific securities at a predetermined price or yield in which payment and delivery take place after the customary settlement period for that type of security. Typically, no interest accrues to the purchaser until the security is delivered.

When purchasing securities pursuant to one of these transactions, the purchaser assumes the rights and risks of ownership, including the risks of price and yield fluctuations and the risk that the security will not be issued as anticipated. Because payment for the securities is not required until the delivery date, these risks are in addition to the risks associated with a fund's investments. If a fund remains substantially fully invested at a time when a purchase is outstanding, the purchases may result in a form of leverage. When a fund has sold a security pursuant to one of these transactions, the fund does not participate in further gains or losses with respect to the security. If the other party to a delayed-delivery transaction fails to deliver or pay for the securities, a fund could miss a favorable price or yield opportunity or suffer a loss.

A fund may renegotiate a when-issued or forward transaction and may sell the underlying securities before delivery, which may result in capital gains or losses for the fund.

Zero Coupon Bonds do not make interest payments; instead, they are sold at a discount from their face value and are redeemed at face value when they mature. Because zero coupon bonds do not pay current income, their prices can be more volatile than other types of fixed-income securities when interest rates change. In calculating a fund's dividend, a portion of the difference between a zero coupon bond's purchase price and its face value is considered income.

In addition to the investment policies and limitations discussed above, a fund is subject to the additional operational risk discussed below.

Considerations Regarding Cybersecurity. With the increased use of technologies such as the Internet to conduct business, a fund’s service providers are susceptible to operational, information security and related risks. In general, cyber incidents can result from deliberate attacks or unintentional events and may arise from external or internal sources. Cyber attacks include, but are not limited to, gaining unauthorized access to digital systems (e.g., through “hacking” or malicious software coding) for purposes of misappropriating assets or sensitive information; corrupting data, equipment or systems; or causing operational disruption. Cyber attacks may also be carried out in a manner that does not require gaining unauthorized access, such as causing denial-of-service attacks on websites (i.e., efforts to make network services unavailable to intended users). Cyber incidents affecting a fund’s manager, any sub-adviser and other service providers (including, but not limited to, fund accountants, custodians, transfer agents and financial intermediaries) have the ability to cause disruptions and impact business operations, potentially resulting in financial losses, interference with a fund’s ability to calculate its NAV, impediments to trading, the inability of fund shareholders to transact business, destruction to equipment and systems, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs. Similar adverse consequences could result from cyber incidents affecting issuers of securities in which a fund invests, counterparties with which a fund engages in transactions, governmental and other regulatory authorities, exchange and other financial market operators, banks, brokers, dealers, insurance companies and other financial institutions (including financial intermediaries and service providers for fund shareholders) and other parties. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future.

While a fund’s service providers have established business continuity plans in the event of, and risk management systems to prevent, such cyber incidents, there are inherent limitations in such plans and systems including the possibility that certain risks have not been identified. Furthermore, a fund cannot control the cyber security plans and systems put in place by its service providers or any other third parties whose operations may affect a fund or its shareholders. A fund and its shareholders could be negatively impacted as a result.

EXCHANGE TRADED FUND RISKS

Continuous Offering. The method by which Creation Units of shares are created and traded may raise certain issues under applicable securities laws. Because new Creation Units of shares are issued and sold by the fund on an ongoing basis, at any point a "distribution," as such term is used in the 1933 Act, may occur. Broker-dealers and other persons are cautioned that some activities on their part may, depending on the circumstances, result in their being deemed participants in a distribution in a manner which could render them statutory underwriters and subject them to the prospectus delivery and liability provisions of the 1933 Act.

For example, a broker-dealer firm or its client may be deemed a statutory underwriter if it takes Creation Units after placing an order with Fidelity Distributors Corporation (FDC), the fund's distributor, breaks them down into constituent shares, and sells such shares directly to customers, or if it chooses to couple the creation of a supply of new shares with an active selling effort involving solicitation of secondary market demand for shares. A determination of whether one is an underwriter for purposes of the 1933 Act must take into account all the facts and circumstances pertaining to the activities of the broker-dealer or its client in the particular case, and the examples mentioned above should not be considered a complete description of all the activities that could lead to a categorization as an underwriter.

Broker-dealer firms should also note that dealers who are not "underwriters," but are effecting transactions in shares of the fund, whether or not participating in the distribution of shares, are generally required to deliver a prospectus. This is because the prospectus delivery exemption in Section 4(a)(3) of the 1933 Act is not available in respect of such transactions as a result of Section 24(d) of the 1940 Act. As a result, broker-dealer firms should note that dealers who are not underwriters but are participating in a distribution (as opposed to engaging in ordinary secondary market transactions) and thus dealing with the shares that are part of an overallotment within the meaning of Section 4(a)(3)(A) of the 1933 Act would be unable to take advantage of the prospectus delivery exemption provided by Section 4(a)(3) of the 1933 Act. Firms that incur a prospectus-delivery obligation with respect to shares of the fund are reminded that, under Rule 153 under the 1933 Act, a prospectus-delivery obligation under Section 5(b)(2) of the 1933 Act owed to an exchange member in connection with a sale on CboeBZX is satisfied by the fact that the prospectus is available from CboeBZX upon request. The prospectus delivery mechanism provided in Rule 153 is only available with respect to transactions on an exchange.

Listing and Trading. Shares of the fund have been approved for listing and trading on CboeBZX. The fund's shares trade on CboeBZX at prices that may differ to some degree from their NAV. CboeBZX may remove the fund's shares from listing if, among other things (i) following the initial 12-month period beginning upon the commencement of trading of the fund, there are fewer than 50 beneficial owners of the fund's shares for 30 or more consecutive trading days; (ii) the value of the fund's underlying index is no longer calculated or available; (iii) the indicative optimized portfolio value of the fund is no longer calculated or available; or (iv) such other event shall occur or condition exists that, in the opinion of CboeBZX, makes further dealings on CboeBZX inadvisable. CboeBZX will remove the fund's shares from listing and trading upon termination of the trust. There can be no assurance that the requirements of CboeBZX necessary to maintain the listing of the fund's shares will continue to be met.

As in the case of other publicly-traded securities, brokers' commissions on transactions will be based on negotiated commission rates at customary levels.

The existence of a liquid trading market for certain securities may depend on whether dealers will make a market in such securities. There can be no assurance that such a market will be made or maintained or that any such market will be or remain liquid. The price at which securities may be sold and the value of the fund's shares will be adversely affected if trading markets for the fund's portfolio securities are limited or absent, or if bid/ask spreads are wide.

PORTFOLIO TRANSACTIONS

Orders for the purchase or sale of portfolio securities are placed on behalf of the fund by FIMM pursuant to authority contained in the management contract. To the extent that FIMM grants investment management authority to a sub-adviser (see the section entitled "Management Contract"), that sub-adviser is authorized to provide the services described in the respective sub-advisory agreement, and in accordance with the policies described in this section. Furthermore, the sub-adviser's trading and associated policies, which may differ from FIMM's policies, may apply to that fund, subject to applicable law.

FIMM or a sub-adviser may be responsible for the placement of portfolio securities transactions for other investment companies and investment accounts for which it has or its affiliates have investment discretion.

The fund will not incur any commissions or sales charges when it invests in shares of open-end investment companies (including any underlying central funds), but it may incur such costs when it invests directly in other types of securities.

Purchases and sales of equity securities on a securities exchange or over-the-counter (OTC) are effected through brokers who receive compensation for their services. Generally, compensation relating to securities traded on foreign exchanges will be higher than compensation relating to securities traded on U.S. exchanges and may not be subject to negotiation. Compensation may also be paid in connection with principal transactions (in both OTC securities and securities listed on an exchange) and agency OTC transactions executed with an electronic communications network (ECN) or an alternative trading system. Equity securities may be purchased from underwriters at prices that include underwriting fees.

Purchases and sales of fixed-income securities are generally made with an issuer or a primary market-maker acting as principal. Although there is no stated brokerage commission paid by the fund for any fixed-income security, the price paid by the fund to an underwriter includes the disclosed underwriting fee and prices in secondary trades usually include an undisclosed dealer commission or markup reflecting the spread between the bid and ask prices of the fixed-income security. New issues of equity and fixed-income securities may also be purchased in underwritten fixed price offerings.

The Trustees of the fund periodically review FIMM's performance of its responsibilities in connection with the placement of portfolio securities transactions on behalf of the fund. The Trustees also review the compensation paid by the fund over representative periods of time to determine if it was reasonable in relation to the benefits to the fund.

FIMM.

The Selection of Securities Brokers and Dealers

FIMM or its affiliates generally have authority to select securities brokers (whether acting as a broker or a dealer) to place or execute the fund's portfolio securities transactions. In selecting securities brokers, including affiliates of FIMM, to execute the fund's portfolio securities transactions, FIMM or its affiliates consider the factors they deem relevant in the context of a particular trade and in regard to FIMM's or its affiliates' overall responsibilities with respect to the fund and other investment accounts, including any instructions from the fund's portfolio manager. Based on the factors considered, FIMM or its affiliates may choose to execute an order by using an electronic trading platform or by calling one or more dealers. Other possibly relevant factors may include, but are not limited to, the following: price; the size and type of the securities transaction; the reasonableness of compensation to be paid, including spreads and commission rates; the speed and certainty of trade executions, including broker willingness to commit capital; the nature and characteristics of the markets for the security to be purchased or sold, including the degree of specialization of the broker in such markets or securities; the availability of liquidity in the security, including the liquidity provided by individual brokers; the reliability of a broker; the broker's overall trading relationship with FIMM or its affiliates; the trader's assessment of whether and how closely the broker likely will follow the trader's instructions to the broker; the degree of anonymity that a particular broker can provide; the potential for avoiding or lessening market impact; the execution services rendered on a continuing basis; the execution efficiency, settlement capability, and financial condition of the broker or dealer; arrangements for payment of fund expenses, if applicable; and the provision of additional brokerage and research products and services, if applicable.

The trading desks through which FIMM or its affiliates may execute trades are instructed to execute portfolio transactions on behalf of the fund based on the quality of execution without any consideration of brokerage and research products and services the broker or dealer may provide. The administration of brokerage and research products and services is managed separately from the trading desks, which means that traders have no responsibility for administering soft dollar activities.

The Acquisition of Brokerage and Research Products and Services

Brokers (who are not affiliates of FIMM) that execute transactions for the fund may receive higher compensation from the fund than other brokers might have charged the fund, in recognition of the value of the brokerage or research products and services they provide to FIMM or its affiliates.

Research Products and Services. These products and services may include, when permissible under applicable law: economic, industry, company, municipal, sovereign (U.S. and non-U.S.), legal, or political research reports; market color; company meeting facilitation; compilation of securities prices, earnings, dividends and similar data; quotation services, data, information and other services; analytical computer software and services; and investment recommendations. In addition to receiving brokerage and research products and services via written reports and computer-delivered services, such reports may also be provided by telephone and in-person meetings with securities analysts, corporate and industry spokespersons, economists, academicians and government representatives and others with relevant professional expertise. FIMM or its affiliates may request that a broker provide a specific proprietary or third-party product or service. Some of these brokerage and research products and services supplement FIMM's or its affiliates' own research activities in providing investment advice to the fund.

Execution Services. In addition, brokerage and research products and services may include, when permissible under applicable law, those that assist in the execution, clearing, and settlement of securities transactions, as well as other incidental functions (including, but not limited to, communication services related to trade execution, order routing and algorithmic trading, post-trade matching, exchange of messages among brokers or dealers, custodians and institutions, and the use of electronic confirmation and affirmation of institutional trades).

Mixed-Use Products and Services. Although FIMM or its affiliates do not use fund commissions to pay for products or services that do not qualify as brokerage and research products and services, they may use commission dollars to obtain certain products or services that are not used exclusively in FIMM's or its affiliates' investment decision-making process (mixed-use products or services). In those circumstances, FIMM or its affiliates will make a good faith judgment to evaluate the various benefits and uses to which they intend to put the mixed-use product or service, and will pay for that portion of the mixed-use product or service that does not qualify as brokerage and research products and services with their own resources (referred to as "hard dollars").

Benefit to FIMM. FIMM's or its affiliates' expenses likely would be increased if they attempted to generate these additional brokerage and research products and services through their own efforts, or if they paid for these brokerage and research products or services with their own resources. To minimize the potential for conflicts of interest, the trading desks through which FIMM or its affiliates may execute trades are instructed to execute portfolio transactions on behalf of the fund based on the quality of execution without any consideration of brokerage and research products and services the broker or dealer may provide. The administration of brokerage and research products and services is managed separately from the trading desks, which means that traders have no responsibility for administering soft dollar activities. Furthermore, certain of the brokerage and research products and services FIMM or its affiliates receive are furnished by brokers on their own initiative, either in connection with a particular transaction or as part of their overall services. Some of these brokerage and research products or services may be provided at no additional cost to FIMM or its affiliates or have no explicit cost associated with them. In addition, FIMM or its affiliates may request that a broker provide a specific proprietary or third-party product or service, certain of which third-party products or services may be provided by a broker that is not a party to a particular transaction and is not connected with the transacting broker's overall services.

FIMM's Decision-Making Process. In connection with the allocation of fund brokerage, FIMM or its affiliates make a good faith determination that the compensation paid to brokers and dealers is reasonable in relation to the value of the brokerage and/or research products and services provided to FIMM or its affiliates, viewed in terms of the particular transaction for the fund or FIMM's or its affiliates' overall responsibilities to that fund or other investment companies and investment accounts for which FIMM or its affiliates have investment discretion; however, each brokerage and research product or service received in connection with the fund's brokerage may not benefit the fund. While FIMM or its affiliates may take into account the brokerage and/or research products and services provided by a broker or dealer in determining whether compensation paid is reasonable, neither FIMM, its affiliates, nor the fund incur an obligation to any broker, dealer, or third party to pay for any brokerage and research product or service (or portion thereof) by generating a specific amount of compensation or otherwise. Typically, these brokerage and research products and services assist FIMM or its affiliates in terms of their overall investment responsibilities to the fund or any other investment companies and investment accounts for which FIMM or its affiliates have investment discretion. Certain funds or investment accounts may use brokerage commissions to acquire brokerage and research products and services that may also benefit other funds or accounts managed by FIMM or its affiliates.

Research Contracts. FIMM or its affiliates have arrangements with certain third-party research providers and brokers through whom FIMM or its affiliates effect fund trades, whereby FIMM or its affiliates may pay with fund commissions or hard dollars for all or a portion of the cost of research products and services purchased from such research providers or brokers. If hard dollar payments are used, FIMM or its affiliates may still cause the fund to pay more for execution than the lowest commission rate available from the broker providing research products and services to FIMM or its affiliates, or that may be available from another broker. FIMM or its affiliates view hard dollar payments for research products and services as likely to reduce the fund's total commission costs. FIMM's or its affiliates' determination to pay for research products and services separately is wholly voluntary on FIMM's or its affiliates' part and may be extended to additional brokers or discontinued with any broker participating in this arrangement.

Affiliated Transactions

FIMM or its affiliates may place trades with certain brokers, including National Financial Services LLC (NFS) and Luminex Trading & Analytics LLC (Luminex), with whom they are under common control or affiliated, provided FIMM or its affiliates determine that these affiliates' trade-execution abilities and costs are comparable to those of non-affiliated, qualified brokerage firms, and that such transactions be executed in accordance with applicable rules under the 1940 Act and procedures adopted by the Board of Trustees of the fund and subject to other applicable law. In addition, FIMM or its affiliates may place trades with brokers that use NFS or Fidelity Clearing Canada ULC (FCC) as a clearing agent.

The Trustees of the fund have approved procedures whereby a fund may purchase securities that are offered in underwritings in which an affiliate of the adviser or certain other affiliates participate. In addition, for underwritings where such an affiliate participates as a principal underwriter, certain restrictions may apply that could, among other things, limit the amount of securities that the fund could purchase in the underwritings.

Non-U.S. Securities Transactions

To facilitate trade settlement and related activities in non-United States securities transactions, FIMM or its affiliates may effect spot foreign currency transactions with foreign currency dealers. In certain circumstances, due to local law and regulation, logistical or operational challenges, or the process for settling securities transactions in certain markets (e.g., short settlement periods), spot currency transactions may be effected on behalf of funds by parties other than FIMM or its affiliates, including funds' custodian banks (working through sub-custodians or agents in the relevant non-U.S. jurisdiction) or broker-dealers that executed the related securities transaction.

Trade Allocation

Although the Trustees and officers of the fund are substantially the same as those of certain other Fidelity^® funds, investment decisions for the fund are made independently from those of other Fidelity^® funds or investment accounts (including proprietary accounts). The same security is often held in the portfolio of more than one of these funds or investment accounts. Simultaneous transactions are inevitable when several funds and investment accounts are managed by the same investment adviser, or an affiliate thereof, particularly when the same security is suitable for the investment objective of more than one fund or investment account.

When two or more funds or investment accounts are simultaneously engaged in the purchase or sale of the same security or instrument, the prices and amounts are allocated in accordance with procedures believed by FIMM to be appropriate and equitable to each fund or investment account. In some cases this could have a detrimental effect on the price or value of the security or instrument as far as the fund is concerned. In other cases, however, the ability of the fund to participate in volume transactions will produce better executions and prices for the fund.

Commissions Paid

A fund may pay compensation including both commissions and spreads in connection with the placement of portfolio transactions. The amount of brokerage commissions paid by a fund may change from year to year because of, among other things, changing asset levels, shareholder activity, and/or portfolio turnover.

VALUATION

The NAV is the value of a single share. NAV is computed by adding the value of a fund's investments, cash, and other assets, subtracting its liabilities, and dividing the result by the number of shares outstanding.

The value of fund shares bought and sold in the secondary market is driven by market price. The price of these shares, like the price of all traded securities, is subject to factors such as supply and demand, as well as the current value of the portfolio securities held by a fund. Secondary market shares, available for purchase or sale on an intraday basis, do not have a fixed relationship either to the previous day's NAV nor the current day's NAV. Prices in the secondary market, therefore, may be below, at, or above the most recently calculated NAV of such shares.

In order to provide investors with a basis to gauge whether the market price of the shares on the CboeBZX is approximately consistent with the current value of the assets of the fund on a per share basis, an updated value of the fund’s shares is disseminated intraday (“IIV” and also known as the Indicative Optimized Portfolio Value) through the facilities of the Consolidated Tape Association. IIVs are disseminated every 15 seconds through-out the trading day. The fund is not involved in, or responsible for, the calculation or dissemination of the IIVs and makes no warranty as to their accuracy.

The IIV has a securities component and a cash component reflecting cash and other assets that may be held by the fund. The securities values included in the IIV are the values of the Deposit Securities (as defined below under the heading “Buying and Selling Information-Portfolio Deposit”) for the fund. While the IIV reflects the approximate current value of the Deposit Securities required to be deposited in connection with the purchase of a Creation Unit, it does not necessarily reflect the precise composition of the current portfolio of securities held by the fund at a particular point in time because the current portfolio of the fund may include securities that are not a part of the current Deposit Securities. Therefore, the fund’s IIV disseminated during CboeBZX trading hours should not be viewed as a real-time update of the fund’s NAV, which is calculated only once a day. The IIV is generally determined by using current market quotations or price quotations obtained from broker-dealers and other market intermediaries that may trade in the portfolio securities held by the fund.

The cash component included in the IIV could consist of estimated accrued interest, dividends and other income, less expenses.

The Board of Trustees has ultimate responsibility for pricing, but has delegated day-to-day valuation responsibilities to FIMM. FIMM may rely on information and recommendations provided by the FMR Fair Value Committee (the Committee) to fulfill these responsibilities.

Shares of open-end investment companies (including any underlying central funds) held by a fund are valued at their respective NAVs. If an underlying fund's NAV is unavailable, shares of that underlying fund will be fair valued in good faith by the Committee in accordance with applicable fair value pricing policies.

Generally, other portfolio securities and assets held by a fund, as well as portfolio securities and assets held by an underlying central fund, are valued as follows:

Most equity securities are valued at the official closing price or the last reported sale price or, if no sale has occurred, at the last quoted bid price on the primary market or exchange on which they are traded.

Debt securities and other assets for which market quotations are readily available may be valued at market values in the principal market in which they normally are traded, as furnished by recognized dealers in such securities or assets. Or, debt securities and convertible securities may be valued on the basis of information furnished by a pricing service that uses a valuation matrix which incorporates both dealer-supplied valuations and electronic data processing techniques.

Short-term securities with remaining maturities of sixty days or less for which market quotations and information furnished by a pricing service are not readily available may be valued at amortized cost, which approximates current value.

Futures contracts are valued at the settlement or closing price. Options are valued at their market quotations, if available. Swaps are valued daily using quotations received from independent pricing services or recognized dealers.

Prices described above are obtained from pricing services that have been approved by the Board of Trustees. A number of pricing services are available and the funds may use more than one of these services. The funds may also discontinue the use of any pricing service at any time. FIMM engages in oversight activities with respect to the fund's pricing services, which includes, among other things, testing the prices provided by pricing services prior to calculation of a fund's NAV, conducting periodic due diligence meetings, and periodically reviewing the methodologies and inputs used by these services.

Foreign securities and instruments are valued in their local currency following the methodologies described above. Foreign securities, instruments and currencies are translated to U.S. dollars, based on foreign currency exchange rate quotations supplied by a pricing service as of the close of regular trading on CboeBZX, which uses a proprietary model to determine the exchange rate. Forward foreign currency exchange contracts are valued at an interpolated rate based on days to maturity between the closest preceding and subsequent settlement period reported by the third party pricing service.

Other portfolio securities and assets for which market quotations, official closing prices, or information furnished by a pricing service are not readily available or, in the opinion of the Committee, are deemed unreliable will be fair valued in good faith by the Committee in accordance with applicable fair value pricing policies. For example, if, in the opinion of the Committee, a security's value has been materially affected by events occurring before a fund's pricing time but after the close of the exchange or market on which the security is principally traded, that security will be fair valued in good faith by the Committee in accordance with applicable fair value pricing policies. In fair valuing a security, the Committee may consider factors including price movements in futures contracts and American Depositary Receipts (ADRs), market and trading trends, the bid/ask quotes of brokers, and off-exchange institutional trading.

FMR reports to the Board on the Committee’s activities and fair value determinations. The Board monitors the appropriateness of the procedures used in valuing the fund’s investments and ratifies the fair value determinations of the Committee.

BUYING AND SELLING INFORMATION

Book-Entry Only System. The Depository Trust Company (DTC) acts as securities depository for the shares. Shares of the fund are represented by securities registered in the name of DTC or its nominee and deposited with, or on behalf of, DTC. Certificates will not be issued for shares.

DTC, a limited-purpose trust company, was created to hold securities of its participants and to facilitate the clearance and settlement of securities transactions among DTC participants in such securities through electronic book-entry changes in accounts of the DTC participants, thereby eliminating the need for physical movement of securities certificates. DTC participants include securities brokers and dealers, banks, trust companies, clearing corporations, and certain other organizations, some of whom (and/or their representatives) own DTC. Access to the DTC system is also available to others such as banks, brokers, dealers, and trust companies that clear through or maintain a custodial relationship with a DTC participant, either directly or indirectly.

Beneficial ownership of shares is limited to DTC participants and persons holding interests through DTC participants. Ownership of beneficial interests in shares (owners of beneficial interests are referred to herein as Beneficial Owners) is shown on, and the transfer of ownership is effected only through, records maintained by DTC (with respect to DTC participants) and on the records of DTC participants (with respect to indirect DTC participants and Beneficial Owners that are not DTC participants). Beneficial Owners will receive from or through a DTC participant a written confirmation relating to their purchase of shares.

Conveyance of all notices, statements and other communications to Beneficial Owners is effected as follows. Pursuant to the Depositary Agreement between the trust and DTC, DTC is required to make available to the trust upon request and for a fee to be charged to the trust a listing of the shares of the fund held by each DTC participant. The trust shall inquire of each such DTC participant as to the number of Beneficial Owners holding fund shares, directly or indirectly, through such DTC participant. The trust shall provide each such DTC participant with copies of such notice, statement or other communication, in such form, number and at such place as such DTC participant may reasonably request, in order that such notice, statement or communication may be transmitted by such DTC participant, directly or indirectly, to such Beneficial Owners. In addition, the trust shall pay to each such DTC participant a fair and reasonable amount as reimbursement for the expenses attendant to such transmittal, all subject to applicable statutory and regulatory requirements.

Share distributions shall be made to DTC or its nominee, Cede & Co., as the registered holder of all shares. DTC or its nominee, upon receipt of any such distributions, shall credit immediately DTC participants' accounts with payments in amounts proportionate to their respective beneficial interests in shares of the fund as shown on the records of DTC or its nominee. Payments by DTC participants to indirect DTC participants and Beneficial Owners of shares held through such DTC participants will be governed by standing instructions and customary practices, as is now the case with securities held for the accounts of customers in bearer form or registered in a "street name," and will be the responsibility of such DTC participants.

The trust has no responsibility or liability for any aspect of the records relating to or notices to Beneficial Owners, or payments made on account of beneficial ownership interests in such shares, or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests, or for any other aspect of the relationship between DTC and the DTC participants or the relationship between such DTC participants and the indirect DTC participants and Beneficial Owners owning through such DTC participants.

DTC may decide to discontinue providing its service with respect to shares at any time by giving reasonable notice to the trust and discharging its responsibilities with respect thereto under applicable law. Under such circumstances, the trust shall take action either to find a replacement for DTC to perform its functions at a comparable cost or, if such a replacement is unavailable, to issue and deliver printed certificates representing ownership of shares, unless the trust makes other arrangements with respect thereto satisfactory to CboeBZX.

Creation Units. The trust issues and redeems shares of the fund only in Creation Unit aggregations on a continuous basis through FDC, without a sales load, at its NAV next determined after receipt, on any Business Day (as defined herein), of an order in proper form. An Authorized Participant that is not a "qualified institutional buyer," as such term is defined under Rule 144A of the 1933 Act, will not be able to receive, as part of a redemption, restricted securities eligible for resale under Rule 144A. Each Creation Unit consists of a block of 25,000 shares.

A "Business Day" with respect to the fund is any day on which either CboeBZX or the NYSE is open for business. As of the date of the prospectus, CboeBZX and the NYSE observe the following holidays: New Year's Day, Martin Luther King, Jr. Day, President's Day (Washington's Birthday) (U.S.), Good Friday, Memorial Day, Independence Day (U.S.), Labor Day (U.S.), Thanksgiving Day (U.S.), and Christmas Day.

To be eligible to place orders to purchase a Creation Unit of the fund, an entity must be an "Authorized Participant" which is either (i) a "Participating Party," i.e., broker-dealer or other participant in the clearing process through the Continuous Net Settlement System of the National Securities Clearing Corporation (NSCC), a clearing agency that is registered with the SEC (the Clearing Process); or (ii) a DTC participant, and, in each case, must have executed an agreement with FDC, with respect to creations and redemptions of Creation Units (Participant Agreement). All shares of the fund, however created, will be entered on the records of DTC in the name of Cede & Co. for the account of a DTC participant.

The fund reserves the right to adjust the prices of fund shares and the number of shares in a Creation Unit in the future to maintain convenient trading ranges for investors. Any adjustments would be accomplished through stock splits or reverse stock splits, which would have no effect on the net assets of the fund.

Portfolio Deposit. The fund generally expects to issue and redeem Creation Units in exchange for a specified all-cash payment (Cash Deposit). Alternatively, the fund may issue Creation Units in exchange for consideration that consists of an in-kind deposit of a designated portfolio of securities (Deposit Securities) together with a deposit of a specified cash payment (Cash Component) computed as described herein. The Cash Deposit, or alternatively, the Deposit Securities and the Cash Component together, constitute the "Portfolio Deposit," which represents the minimum initial and subsequent investment amount for a Creation Unit. In the event the fund requires Deposit Securities and a Cash Component in consideration for purchasing a Creation Unit, the function of the Cash Component is to compensate for any differences between the NAV per Creation Unit and the Deposit Amount (as defined below). The Cash Component would be an amount equal to the difference between the NAV of the shares (per Creation Unit) and the "Deposit Amount," which is an amount equal to the market value of the Deposit Securities. If the Cash Component is a positive number (the NAV per Creation Unit exceeds the Deposit Amount), the Authorized Participant will deliver the Cash Component. If the Cash Component is a negative number (the NAV per Creation Unit is less than the Deposit Amount), the Authorized Participant will receive the Cash Component. Computation of the Cash Component excludes any stamp duty or other similar fees and expenses payable upon transfer of beneficial ownership of the Deposit Securities, which shall be the sole responsibility of the Authorized Participant.

FIMM, or its agent, makes available through FDC or the transfer agent (through the NSCC) on each Business Day, prior to the opening of trading on the CboeBZX (currently 9:30 a.m. Eastern time), the amount of the Cash Deposit and/or the list of the names and the required number of shares of each Deposit Security and the amount of the Cash Component to be included in the current Portfolio Deposit (based on information at the end of the previous Business Day) for the fund. Such Portfolio Deposit is applicable, subject to any adjustments as described below, in order to effect purchases of Creation Units until such time as the next-announced Portfolio Deposit composition is made available.

The amount of the Cash Deposit (or identity and number of shares of the Deposit Securities and the amount of the Cash Component) required for a Portfolio Deposit for the fund changes as corporate action events, such as dividends, splits, and rights issues, are reflected from time to time by FIMM with a view to the investment objective of the fund. In the event that the fund issues Creation Units in exchange for consideration that includes Deposit Securities and a Cash Component, the fund reserves the right to permit the substitution of an amount of cash (i.e., a cash in lieu amount) to replace any Deposit Security which may, among other reasons, not be available in sufficient quantity for delivery, not be eligible for transfer through the systems of DTC, the Federal Reserve System or the Clearing Process, not be permitted to be re-registered in the name of the trust as a result of an in-kind purchase order pursuant to local law or market convention, restricted under the securities laws or which may not be eligible for trading by an Authorized Participant or the investor for which it is acting. In such cases where the fund purchases portfolio securities with cash, the Authorized Participant will reimburse the fund for, among other things, any difference between the market value at which the securities were purchased by the fund and the cash in lieu amount (which amount, at FIMM's discretion, may be capped), applicable registration fees and taxes. Brokerage commissions incurred in connection with the fund's acquisition of Deposit Securities will be at the expense of the fund and will affect the value of all shares of the fund; but FIMM may adjust the transaction fee to the extent the composition of the Deposit Securities changes or cash in lieu is added to the Cash Component to protect ongoing shareholders. The adjustments described above will reflect changes, known to FIMM on the date of the announcement to be in effect by the time of delivery of the Portfolio Deposit, in the composition of the index being tracked by the fund or resulting from certain corporate actions.

Procedures for Creation Unit Purchases. All purchase orders must be placed for one or more Creation Units. All orders to purchase Creation Units must be received by FDC or its agent no later than the closing time of regular trading hours on CboeBZX (or the NYSE if CboeBZX is not open that day) (ordinarily 4:00 p.m. Eastern time) (the Closing Time), or one hour prior to the Closing Time (ordinarily 3:00 p.m. Eastern Time) in the case of nonconforming orders, in each case on the date such order is placed in order for the creation of Creation Units to be effected based on the NAV of shares of the fund as next determined on such date after receipt of the order in proper form. A nonconforming order may be placed by an Authorized Participant in the event that the fund permits the substitution of an amount of cash to be added to the Cash Component to replace any Deposit Security. The date on which an order to purchase Creation Units (or an order to redeem Creation Units as discussed below) is placed is referred to as the "Transmittal Date." Orders must be transmitted by an Authorized Participant by telephone or other transmission method acceptable to FDC pursuant to procedures set forth in the Participant Agreement. Severe economic or market disruptions or changes, or telephone or other communications failure may impede the ability to reach FDC or an Authorized Participant.

All orders to purchase Creation Units shall be placed with an Authorized Participant, as applicable, in the form required by such Authorized Participant. In addition, the Authorized Participant may request the investor to make certain representations or enter into agreements with respect to the order, including payments of cash to pay the Cash Deposit (or Cash Component, when required). Investors should be aware that their particular broker may not have executed a Participant Agreement and that, therefore, orders to purchase Creation Units have to be placed by the investor's broker through an Authorized Participant that has executed a Participant Agreement. In such cases there may be additional charges to such investor. At any given time, there may be only a limited number of broker-dealers that have executed a Participant Agreement.

Those placing orders to purchase Creation Units should afford sufficient time to permit proper submission of the order to FDC or its agent prior to the applicable deadlines on the Transmittal Date. Authorized participants may ascertain the deadlines applicable to the Federal Reserve Bank wire system and DTC by contacting the operations department of the depository institution or broker effecting such transfer of the Cash Deposit (or Deposit Securities and Cash Component).

Portfolio Deposits must be delivered through the Federal Reserve System (for cash and government securities) and through DTC (for corporate and municipal securities) by an Authorized Participant that has executed a Participant Agreement. The Portfolio Deposit transfer must be ordered by the Authorized Participant on the Transmittal Date in a timely fashion so as to ensure the delivery of the requisite number of Deposit Securities through DTC to the account of the fund by no later than 1:00 p.m. Eastern time of the next Business Day immediately following the Transmittal Date. In certain cases Authorized Participants will purchase and redeem Creation Units of the fund on the same Transmittal Date. In these instances, the fund reserves the right to settle these transactions on a net basis.

All questions as to the number of Deposit Securities to be delivered, and the validity, form and eligibility (including time of receipt) for the deposit of any tendered securities, will be determined by the fund, whose determination shall be final and binding. For purchase orders composed solely of a Cash Component, the amount of cash equal to the Cash Component must be transferred directly to the fund's custodian through the Federal Reserve Bank wire transfer system in a timely manner so as to be received by the fund's custodian no later than 10:00 a.m. Eastern time on the next Business Day immediately following such Transmittal Date. An order to purchase Creation Units is deemed received by FDC on the Transmittal Date if (i) such order is received by FDC or its agent not later than 3:00 p.m. Eastern time on such Transmittal Date; and (ii) all other procedures set forth in the Participant Agreement are properly followed. However, if the fund's custodian does not receive, with respect to purchase orders composed solely of a Cash Component, the Cash Component by 10:00 a.m., or the required Deposit Securities together with the associated Cash Component by 1:00 p.m. on the next Business Day immediately following the Transmittal Date, such order will be deemed not in proper form and canceled. Upon written notice to FDC, such canceled order may be resubmitted the following Business Day using a Portfolio Deposit as newly constituted to reflect the next calculated NAV of the fund. The delivery of Creation Units so purchased will occur not later than the second (2nd) Business Day following the day on which the purchase order is deemed received by FDC.

FDC or its agent will inform the transfer agent, FIMM and the fund's custodian upon receipt of a purchase order. The custodian will then provide such information to the appropriate subcustodian. The custodian will cause the subcustodian to maintain an account into which the Deposit Securities (or the cash value of all or part of such securities, in the case of a permitted or required cash purchase or "cash in lieu" amount) will be delivered. Deposit Securities must be delivered to an account maintained at the applicable local custodian. The trust must also receive, on or before the contractual settlement date, immediately available or same day funds estimated by the custodian to be sufficient to pay the Cash Component next determined after receipt in proper form of the purchase order, together with the purchase transaction fee described below.

Once the trust has accepted a purchase order, the trust will confirm the issuance of a Creation Unit of the fund against receipt of payment, at such NAV as will have been calculated after receipt in proper form of such order. FDC or its agent will then transmit a confirmation of acceptance of such order.

Creation Units will not be issued until the payment of the Cash Deposit (or the transfer of good title to the trust of the Deposit Securities and the payment of the Cash Component) has been completed. When the subcustodian has confirmed to the custodian that the required Deposit Securities (or the cash value thereof) have been delivered to the account of the relevant subcustodian, FDC and FIMM will be notified of such delivery and the trust will issue and cause the delivery of the Creation Units.

Creation Units may be created in advance of receipt by the fund of all or a portion of the applicable Deposit Securities as described below. In these circumstances, the initial deposit will have a value greater than the NAV of the shares on the date the order is placed in proper form since, in addition to available Deposit Securities, cash must be deposited in an amount equal to the sum of (i) the Cash Component (including any Transaction Fees), plus (ii) at least 105% and up to 115% of the market value of the undelivered Deposit Securities (Additional Cash Deposit). The order shall be deemed to be received on the Business Day on which the order is placed provided that the order is placed in proper form prior to 3:00 p.m. Eastern time on such date and federal funds in the appropriate amount are deposited with the fund's custodian by 10:00 a.m. Eastern time the following Business Day. If the order is not placed in proper form by 3:00 p.m. or federal funds in the appropriate amount are not received by 10:00 a.m. the next Business Day, then the order may be deemed to be rejected and the Authorized Participant shall be liable to the fund for losses, if any, resulting there from. An additional amount of cash shall be required to be deposited with the fund, pending delivery of the missing Deposit Securities to the extent necessary to maintain the Additional Cash Deposit with the fund in an amount at least equal to at least 105% and up to 115% of the daily marked to market value of the missing Deposit Securities. In the sole discretion of the fund following the Business Day on which the order was received the fund may use the cash on deposit to purchase the missing Deposit Securities. Authorized Participants will be liable to the fund for the costs incurred by the fund in connection with any such purchases. These costs will be deemed to include the amount by which the actual purchase price of the Deposit Securities exceeds the market value of such Deposit Securities on the day the purchase order was deemed received by FDC plus the brokerage and related transaction costs associated with such purchases and the Authorized Participant shall be liable to the fund for any shortfall between the cost to the fund of purchasing any missing Deposit Securities and the value of the collateral. The fund will return any unused portion of the Additional Cash Deposit once all of the missing Deposit Securities have been properly received by FDC or purchased by the fund and deposited into the fund.

Acceptance of Purchase Orders. The fund reserves the absolute right to reject a purchase order transmitted to it by FDC if (i) the order is not in proper form; (ii) the investor(s), upon obtaining the shares ordered, would own 80% or more of the currently outstanding shares of the fund; (iii) acceptance of the Deposit Securities would have certain adverse tax consequences to the fund; (iv) acceptance of the Portfolio Deposit would, in the opinion of the fund, be unlawful; (v) acceptance of the Portfolio Deposit would otherwise, in the discretion of the fund or FIMM, have an adverse effect on the fund or the rights of beneficial owners; or (vi) in the event that circumstances outside the control of the fund, make it impossible to process creation orders for all practical purposes. Examples of such circumstances include, without limitation, acts of God; public service or utility problems such as earthquakes, fires, floods, extreme weather conditions, and power outages resulting in telephone, telecopy, and computer failures; wars; civil or military disturbances, including acts of civil or military authority or governmental actions; terrorism; sabotage; epidemics; riots; labor disputes; market conditions or activities causing trading halts; systems failures involving computer or other information systems affecting the fund, FMR, FIMM, FDC, DTC, NSCC, the transfer agent, or any other participant in the purchase process, and similar extraordinary events. The fund and FDC have the right to require information to determine beneficial share ownership for purposes of (ii) above should it so choose or to rely on a certification from a broker-dealer who is a member of the Financial Industry Regulatory Authority, Inc. as to the cost basis of Deposit Securities. If creations are on an in-kind basis, the fund further reserves the absolute right to reject or suspend an order transmitted to it by FDC and/or the transfer agent in respect of the fund if: (i) acceptance of the Deposit Securities would have certain adverse tax consequences to the fund; or (ii) for any other reasons as specified herein. FDC or the fund shall notify a prospective purchaser of a Creation Unit and/or the Authorized Participant acting on the purchaser's behalf, of its rejection of the purchaser's order. The fund, the transfer agent, and FDC are under no duty, however, to verify or give notification of any defects or irregularities in any written order or in the delivery of a Portfolio Deposit, nor shall any of them incur any liability for the failure to give any such notification.

Redemption of Creation Units. Shares may be redeemed only in Creation Units at their NAV next determined after receipt of a redemption request in proper form by the fund through the transfer agent and only on a Business Day through an Authorized Participant that has entered into a Participant Agreement. The fund will not redeem shares in amounts less than Creation Unit-size aggregations. Beneficial Owners must accumulate enough shares to constitute a Creation Unit in order to have such shares redeemed by the fund. There can be no assurance, however, that there will be sufficient liquidity in the public trading market at any time to permit assembly of a Creation Unit. Investors should expect to incur brokerage and other costs in connection with assembling a sufficient number of shares to constitute a redeemable Creation Unit.

FIMM, through FDC or the transfer agent (through the NSCC) makes available immediately prior to the opening of trading on CboeBZX (or the NYSE if CboeBZX is not open that day) on each Business Day, the identity of the basket of securities (Fund Securities) that will be applicable (subject to possible amendment or correction) to redemption requests received in proper form (as defined below) on that day. The opening of CboeBZX and NYSE is currently 9:30 a.m. Eastern Time.

The redemption proceeds for a Creation Unit may consist of Fund Securities - as announced by FIMM, or its agent, on the Business Day of the request for redemption received in proper form - plus cash in an amount equal to the difference between the NAV of the shares being redeemed, as next determined after a receipt of the request in proper form, and the value of the Fund Securities (Cash Redemption Amount), less a redemption transaction fee and any variable fee as listed below. In the event that the Fund Securities have a value greater than the NAV of the shares being redeemed, a compensating cash payment to the fund equal to the differential plus the applicable redemption transaction fee is required to be made by or through an Authorized Participant by the redeeming shareholder. Notwithstanding the foregoing, the fund will substitute a cash-in-lieu amount to replace any Fund Security that is a non-deliverable instrument. The amount of the cash paid out in such cases will be equivalent to the value of the instrument listed as a Fund Security.

The right of redemption may be suspended or the date of payment postponed with respect to the fund (i) for any period during which the NYSE is closed (other than customary weekend and holiday closings); (ii) for any period during which trading on the NYSE is suspended or restricted; (iii) for any period during which an emergency exists as a result of which disposal of the shares or determination of the fund's NAV is not reasonably practicable; or (iv) in such other circumstances as is permitted by the SEC.

Orders to redeem Creation Units must be delivered through an Authorized Participant. An order to redeem Creation Units is deemed received by the fund on the Transmittal Date if (i) such order is received in proper form by the transfer agent not later than the Closing Time (or one hour prior to the Closing Time (ordinarily 3:00 p.m. Eastern Time) for nonconforming orders) on such Transmittal Date; (ii) such order is accompanied or followed by the requisite number of shares of the fund and the Cash Redemption Amount specified in such order, which delivery must be made through DTC to the fund's custodian no later than 1:00 p.m., for the shares, and 3:00 p.m., for the Cash Redemption Amount, Eastern time on the next Business Day following such Transmittal Date (the DTC Cut-Off-Time); and (iii) all other procedures set forth in the Participant Agreement are properly followed. The requisite Fund Securities and the Cash Redemption Amount will be transferred by the second (2nd) Business Day following the date on which such request for redemption is deemed received, which will generally be no more than seven (7) days after such request for redemption but may be up to fifteen days for funds that invest in foreign securities. In certain cases, Authorized Participants will redeem and purchase Creation Units of the fund on the same Transmittal Date. In these instances, the fund reserves the right to settle these transactions on a net basis.

If the fund determines, based on information available to the fund when a redemption request is submitted by an Authorized Participant, that: (i) the short interest of the fund in the marketplace is greater than or equal to 100%; and (ii) the orders in the aggregate from all Authorized Participants redeeming shares on a Business Day represent 25% or more of the outstanding shares of the fund, such Authorized Participant will be required to verify to the fund the accuracy of its representations that are deemed to have been made by submitting a request for redemption. If, after receiving notice of the verification requirement, the Authorized Participant does not verify the accuracy of its representations that are deemed to have been made by submitting a request for redemption in accordance with this requirement, its redemption request will be considered not to have been received in proper form.

To the extent contemplated by an Authorized Participant's agreement, in the event the Authorized Participant has submitted a redemption request in proper form but is unable to transfer all or part of the Creation Units to be redeemed to FDC, on behalf of the fund, at or prior to the closing time of regular trading on the CboeBZX (or the NYSE if CboeBZX is not open that day) on the date such redemption request is submitted, FDC will nonetheless accept the redemption request in reliance on the undertaking by the Authorized Participant to deliver the missing fund shares as soon as possible, which undertaking shall be secured by the Authorized Participant's delivery and maintenance of collateral consisting of cash having a value (marked to market daily) at least equal to at least 105% and up to 115% of the value of the missing fund shares. The current procedures for collateralization of missing shares require, among other things, that any cash collateral shall be in the form of U.S. dollars in immediately-available funds and shall be held by the fund and marked to market daily, and that the fees of the fund and any sub-custodians in respect of the delivery, maintenance, and redelivery of the cash collateral shall be payable by the Authorized Participant. The Participant Agreement will permit the fund to purchase the missing fund shares or acquire the Deposit Securities and the Balancing Amount underlying such shares at any time and will subject the Authorized Participant to liability for any shortfall between the cost to the fund of purchasing such shares, Deposit Securities or Balancing Amount and the value of the collateral.

The calculation of the value of the Fund Securities and the Cash Redemption Amount to be delivered upon redemption will be made by Fidelity Service Company, Inc. (FSC) according to the procedures set forth in the section entitled "Valuation" computed on the Business Day on which a redemption order is deemed received by the transfer agent. Therefore, if a conforming redemption order in proper form is submitted to the transfer agent by an Authorized Participant not later than Closing Time, or 3:00 p.m. Eastern time in the case of nonconforming orders, on the Transmittal Date, and the requisite number of shares of the fund are delivered to the fund's custodian prior to the DTC Cut-Off-Time, then the value of the Fund Securities and the Cash Redemption Amount to be delivered will be determined by FSC on such Transmittal Date. If, however, a conforming redemption order is submitted to the transfer agent by an Authorized Participant not later than the Closing Time, or 3:00 p.m. Eastern time in the case of nonconforming orders, on the Transmittal Date but either (i) the requisite number of shares of the fund and the Cash Redemption Amount are not delivered by the DTC Cut-Off-Time as described above on the next Business Day following the Transmittal Date, or (ii) the redemption order is not submitted in proper form, then the redemption order will not be deemed received as of the Transmittal Date. In such case, the value of the Fund Securities and the Cash Redemption Amount to be delivered will be computed as of the Closing Time on the Business Day that such order is deemed received by the transfer agent, i.e., the Business Day on which the shares of the fund are delivered through DTC to FDC by the DTC Cut-Off-Time on such Business Day pursuant to a properly submitted redemption order.

The fund may in its discretion exercise its option to redeem shares in cash, and the redeeming Beneficial Owner will be required to receive its redemption proceeds in cash. In addition, an investor may request a redemption in cash that the fund may, in its sole discretion, permit. The fund generally expects to effect redemptions for cash. In either case, the investor will receive a cash payment equal to the NAV of its shares based on the NAV of shares of the fund next determined after the redemption request is received in proper from (minus a redemption transaction fee and additional charge for requested cash redemptions specified above, to offset the fund's brokerage and other transaction costs associated with the disposition of Fund Securities).

Redemption of shares for Fund Securities will be subject to compliance with applicable federal and state securities laws and the fund (whether or not it otherwise permits cash redemptions) reserves the right to redeem Creation Units for cash to the extent that the fund could not lawfully deliver specific Fund Securities upon redemptions or could not do so without first registering the Fund Securities under such laws. An Authorized Participant or a Beneficial Owner for which it is acting subject to a legal restriction with respect to a particular stock included in the Fund Securities is applicable to the redemption of a Creation Unit may be paid an equivalent amount of cash. The Authorized Participant may request the redeeming Beneficial Owner of the shares to complete an order form or to enter into agreements with respect to such matters as compensating cash payment.

In connection with taking delivery of shares for Fund Securities upon redemption of Creation Units, a redeeming shareholder or entity acting on behalf of a redeeming shareholder must maintain appropriate custody arrangements with a qualified broker-dealer, bank or other custody providers in each jurisdiction in which any of the Fund Securities are customarily traded, to which account such Fund Securities will be delivered. If neither the redeeming shareholder nor the entity acting on behalf of a redeeming shareholder has appropriate arrangements to take delivery of the Fund Securities in the applicable foreign jurisdiction and it is not possible to make other such arrangements, or if it is not possible to effect deliveries of the Fund Securities in such jurisdictions, the trust may, in its discretion, exercise its option to redeem such shares in cash, and the redeeming shareholder will be required to receive its redemption proceeds in cash.

Deliveries of redemption proceeds generally will be made within two Business Days. Due to the schedule of holidays in certain countries, however, the delivery of redemption proceeds may take longer than two Business Days after the day on which the redemption request is received in proper form. In such cases, the local market settlement procedures will not commence until the end of the local holiday periods.

The proclamation of new holidays, the treatment by market participants of certain days as "informal holidays" (e.g., days on which no or limited securities transactions occur, as a result of substantially shortened trading hours), the elimination of existing holidays or changes in local securities delivery practices, could affect the information set forth herein at some time in the future.

Creation/Redemption Transaction Fees. The fund may impose a "Transaction Fee" on investors purchasing or redeeming Creation Units. The Transaction Fee will be limited to amounts that have been determined by FIMM to be appropriate. The purpose of the Transaction Fee is to protect the existing shareholders of the fund from the dilutive costs associated with the purchase and redemption of Creation Units. For cash creations (or redemptions) or cash in lieu of depositing one or more Deposit Securities, the purchaser (or redeemer) may be assessed a higher Transaction Fee to offset the transaction cost to the fund of buying (or selling) those particular Deposit Securities. To the extent a purchase/redemption transaction consists of cash and/or in-kind securities, the standard fee applies to in kind purchases and redemptions of creation units and an additional transaction fee (up to the maximum amounts shown in the table below) may also be imposed on cash transactions. The fund reserves the right to not impose the additional transaction fee or to vary the amount of the additional transaction fee, up to the maximum listed below, depending on the materiality of the fund's actual transaction costs incurred or where FDC believes that not imposing or varying the additional transaction fee would be in the fund's interest. Transaction fees associated with the redemption of Creation Units will not exceed 2% of the value of shares redeemed. Actual transaction costs may vary depending on the time of day an order is received or the nature of the securities. Investors bear the costs of transferring Fund Securities to/from the fund to/from their account or on their order. Every purchaser of a Creation Unit will receive a prospectus that contains disclosure about the Transaction Fees, including the maximum amount of the additional transaction fee charged by the fund.

The following table shows, as of June 11, 2018, the approximate value of one Creation Unit of the fund and sets forth the standard transaction fees and maximum additional transaction fees for creations and redemptions.

Name of Fund	Approximate Value of One Creation Unit	Standard Creation/Redemption Transaction Fee	Maximum Additional Creation Transaction Fee*	Maximum Additional Redemption Transaction Fee*
Fidelity® Low Duration Bond Factor ETF	$1,250,000	$125	5.0%	2.0%

* As a percentage of the cash amount invested or redeemed.

DISTRIBUTIONS AND TAXES

Dividends. Because the fund's income is primarily derived from interest, dividends from the fund generally will not qualify for the dividends-received deduction available to corporate shareholders or the long-term capital gains tax rates available to individuals. Short-term capital gains are taxable at ordinary income tax rates. A portion of the fund's dividends may be exempt from state and local taxation to the extent that they are derived from certain U.S. Government securities and meet certain requirements. Distributions by the fund to tax-advantaged retirement plan accounts are not taxable currently.

Capital Gain Distributions. Unless your shares of the fund are held in a tax-advantaged retirement plan, the fund's long-term capital gain distributions are federally taxable to shareholders generally as capital gains.

Returns of Capital. If the fund's distributions exceed its taxable income and capital gains realized during a taxable year, all or a portion of the distributions made in the same taxable year may be recharacterized as a return of capital to shareholders. A return of capital distribution will generally not be taxable, but will reduce each shareholder's cost basis in the fund and result in a higher reported capital gain or lower reported capital loss when those shares on which the distribution was received are sold in taxable accounts.

Sales of Listed Shares. Gain or loss that is recognized on the sale of exchange-listed shares generally will be characterized as long-term capital gain or loss for shares that have been held for more than one year and as short-term capital gain or loss for shares that have been held for one year or less.

Purchase of Creation Units. The purchase of Creation Units generally will be a taxable event for the person who transfers securities in exchange for Creation Units but generally will not be a taxable event for the fund. The transferor will recognize gain or loss equal to the difference between (a) the sum of the fair market value of the Creation Units (which may differ from their NAV) and any Balancing Amount that is received and (b) the sum of the transferor's basis in the transferred securities, transaction fees and any Balancing Amount that is paid.

Redemption of Creation Units. The redemption of Creation Units generally will be a taxable event for the person who receives securities in exchange for Creation Units but generally will not be a taxable event for the fund. The recipient will recognize gain or loss equal to the difference between (a) the sum of the fair market value of the securities and any Cash Redemption Amount that is received and (b) the sum of the basis of the Creation Unit shares, transaction fees and any Cash Redemption Amount that is paid.

Foreign Tax Credit or Deduction. Foreign governments may impose withholding taxes on dividends and interest earned by the fund with respect to foreign securities held directly by the fund. Foreign governments may also impose taxes on other payments or gains with respect to foreign securities held directly by the fund. Because the fund does not currently anticipate that securities of foreign issuers or underlying regulated investment companies will constitute more than 50% of its total assets at the end of its fiscal year, or fiscal quarter, respectively, shareholders should not expect to be eligible to claim a foreign tax credit or deduction on their federal income tax returns with respect to foreign taxes withheld.

Tax Status of the Fund. The fund intends to qualify each year as a "regulated investment company" under Subchapter M of the Internal Revenue Code so that it will not be liable for federal tax on income and capital gains distributed to shareholders. In order to qualify as a regulated investment company, and avoid being subject to federal income or excise taxes at the fund level, the fund intends to distribute substantially all of its net investment income and net realized capital gains within each calendar year as well as on a fiscal year basis (if the fiscal year is other than the calendar year), and intends to comply with other tax rules applicable to regulated investment companies.

Under recent tax legislation, individuals (and certain other non-corporate entities) are generally eligible for a 20% deduction with respect to taxable ordinary dividends from real estate investment trusts and certain taxable income from publicly traded partnerships. Currently, there is not a regulatory mechanism for regulated investment companies to pass through the 20% deduction to shareholders. As a result, in comparison, investors investing directly in real estate investment trusts or publicly traded partnerships would generally be eligible for the 20% deduction for such taxable income from these investments while investors investing in real estate investment trusts or publicly traded partnerships indirectly through a fund would not be eligible for the 20% deduction for their share of such taxable income.

Other Tax Information. The information above is only a summary of some of the tax consequences generally affecting the fund and its shareholders, and no attempt has been made to discuss individual tax consequences. It is up to you or your tax preparer to determine whether the sale of shares of the fund resulted in a capital gain or loss or other tax consequence to you. In addition to federal income taxes, shareholders may be subject to state and local taxes on fund distributions, and shares may be subject to state and local personal property taxes. Investors should consult their tax advisers to determine whether the fund is suitable to their particular tax situation.

TRUSTEES AND OFFICERS

The Trustees, Members of the Advisory Board (if any), and officers of the trust and fund, as applicable, are listed below. The Board of Trustees governs the fund and is responsible for protecting the interests of shareholders. The Trustees are experienced executives who meet periodically throughout the year to oversee the fund's activities, review contractual arrangements with companies that provide services to the fund, oversee management of the risks associated with such activities and contractual arrangements, and review the fund's performance. Each of the Trustees oversees 235 funds.

The Trustees hold office without limit in time except that (a) any Trustee may resign; (b) any Trustee may be removed by written instrument, signed by at least two-thirds of the number of Trustees prior to such removal; (c) any Trustee who requests to be retired or who has become incapacitated by illness or injury may be retired by written instrument signed by a majority of the other Trustees; and (d) any Trustee may be removed at any special meeting of shareholders by a two-thirds vote of the outstanding voting securities of the trust. Each Trustee who is not an interested person (as defined in the 1940 Act) of the trust and the fund is referred to herein as an Independent Trustee. Each Independent Trustee shall retire not later than the last day of the calendar year in which his or her 75th birthday occurs. The Independent Trustees may waive this mandatory retirement age policy with respect to individual Trustees. Officers and Advisory Board Members hold office without limit in time, except that any officer or Advisory Board Member may resign or may be removed by a vote of a majority of the Trustees at any regular meeting or any special meeting of the Trustees. Except as indicated, each individual has held the office shown or other offices in the same company for the past five years.

Experience, Skills, Attributes, and Qualifications of the Trustees. The Governance and Nominating Committee has adopted a statement of policy that describes the experience, qualifications, attributes, and skills that are necessary and desirable for potential Independent Trustee candidates (Statement of Policy). The Board believes that each Trustee satisfied at the time he or she was initially elected or appointed a Trustee, and continues to satisfy, the standards contemplated by the Statement of Policy. The Governance and Nominating Committee also engages professional search firms to help identify potential Independent Trustee candidates who have the experience, qualifications, attributes, and skills consistent with the Statement of Policy. From time to time, additional criteria based on the composition and skills of the current Independent Trustees, as well as experience or skills that may be appropriate in light of future changes to board composition, business conditions, and regulatory or other developments, have also been considered by the professional search firms and the Governance and Nominating Committee. In addition, the Board takes into account the Trustees' commitment and participation in Board and committee meetings, as well as their leadership of standing and ad hoc committees throughout their tenure.

In determining that a particular Trustee was and continues to be qualified to serve as a Trustee, the Board has considered a variety of criteria, none of which, in isolation, was controlling. The Board believes that, collectively, the Trustees have balanced and diverse experience, qualifications, attributes, and skills, which allow the Board to operate effectively in governing the fund and protecting the interests of shareholders. Information about the specific experience, skills, attributes, and qualifications of each Trustee, which in each case led to the Board's conclusion that the Trustee should serve (or continue to serve) as a trustee of the fund, is provided below.

Board Structure and Oversight Function. Abigail P. Johnson is an interested person and currently serves as Chairman. The Trustees have determined that an interested Chairman is appropriate and benefits shareholders because an interested Chairman has a personal and professional stake in the quality and continuity of services provided to the fund. Independent Trustees exercise their informed business judgment to appoint an individual of their choosing to serve as Chairman, regardless of whether the Trustee happens to be independent or a member of management. The Independent Trustees have determined that they can act independently and effectively without having an Independent Trustee serve as Chairman and that a key structural component for assuring that they are in a position to do so is for the Independent Trustees to constitute a substantial majority for the Board. The Independent Trustees also regularly meet in executive session. Marie L. Knowles serves as Chairman of the Independent Trustees and as such (i) acts as a liaison between the Independent Trustees and management with respect to matters important to the Independent Trustees and (ii) with management prepares agendas for Board meetings.

Fidelity^® funds are overseen by different Boards of Trustees. The fund's Board oversees Fidelity's investment-grade bond, money market, asset allocation and certain equity funds, and other Boards oversee Fidelity's high income and other equity funds. The asset allocation funds may invest in Fidelity^® funds that are overseen by such other Boards. The use of separate Boards, each with its own committee structure, allows the Trustees of each group of Fidelity^® funds to focus on the unique issues of the funds they oversee, including common research, investment, and operational issues. On occasion, the separate Boards establish joint committees to address issues of overlapping consequences for the Fidelity^® funds overseen by each Board.

The Trustees operate using a system of committees to facilitate the timely and efficient consideration of all matters of importance to the Trustees, the fund, and fund shareholders and to facilitate compliance with legal and regulatory requirements and oversight of the fund's activities and associated risks. The Board, acting through its committees, has charged FMR and its affiliates with (i) identifying events or circumstances the occurrence of which could have demonstrably adverse effects on the fund's business and/or reputation; (ii) implementing processes and controls to lessen the possibility that such events or circumstances occur or to mitigate the effects of such events or circumstances if they do occur; and (iii) creating and maintaining a system designed to evaluate continuously business and market conditions in order to facilitate the identification and implementation processes described in (i) and (ii) above. Because the day-to-day operations and activities of the fund are carried out by or through FMR, its affiliates, and other service providers, the fund's exposure to risks is mitigated but not eliminated by the processes overseen by the Trustees. While each of the Board's committees has responsibility for overseeing different aspects of the fund's activities, oversight is exercised primarily through the Operations and Audit Committees. In addition, an ad hoc Board committee of Independent Trustees has worked with FMR to enhance the Board's oversight of investment and financial risks, legal and regulatory risks, technology risks, and operational risks, including the development of additional risk reporting to the Board. Appropriate personnel, including but not limited to the fund's Chief Compliance Officer (CCO), FMR's internal auditor, the independent accountants, the fund's Treasurer and portfolio management personnel, make periodic reports to the Board's committees, as appropriate, including an annual review of Fidelity's risk management program for the Fidelity^® funds. The responsibilities of each standing committee, including their oversight responsibilities, are described further under "Standing Committees of the Trustees."

Interested Trustees*:

Correspondence intended for a Trustee who is an interested person may be sent to Fidelity Investments, 245 Summer Street, Boston, Massachusetts 02210.

Name, Year of Birth; Principal Occupations and Other Relevant Experience+

Abigail P. Johnson (1961)

Year of Election or Appointment: 2012

Trustee

Chairman of the Board of Trustees

Ms. Johnson also serves as Trustee of other Fidelity^® funds. Ms. Johnson serves as Chairman (2016-present), Chief Executive Officer (2014-present), and Director (2007-present) of FMR LLC (diversified financial services company), President of Fidelity Financial Services (2012-present) and President of Personal, Workplace and Institutional Services (2005-present). Ms. Johnson is Chairman and Director of FMR Co., Inc. (investment adviser firm, 2011-present) and Chairman and Director of FMR (investment adviser firm, 2011-present). Previously, Ms. Johnson served as Vice Chairman (2007-2016) and President (2013-2016) of FMR LLC, President and a Director of FMR (2001-2005), a Trustee of other investment companies advised by FMR, Fidelity Investments Money Management, Inc. (investment adviser firm), and FMR Co., Inc. (2001-2005), Senior Vice President of the Fidelity^® funds (2001-2005), and managed a number of Fidelity^® funds. Ms. Abigail P. Johnson and Mr. Arthur E. Johnson are not related.

Jennifer Toolin McAuliffe (1959)

Year of Election or Appointment: 2016

Trustee

Ms. McAuliffe also serves as Trustee of other Fidelity^® funds. Ms. McAuliffe previously served as a Member of the Advisory Board of certain Fidelity® funds (2016) and as Co-Head of Fixed Income of Fidelity Investments Limited (now known as FIL Limited (FIL)) (diversified financial services company). Earlier roles at FIL included Director of Research for FIL’s credit and quantitative teams in London, Hong Kong and Tokyo. Ms. McAuliffe also was the Director of Research for taxable and municipal bonds at Fidelity Investments Money Management, Inc. Ms. McAuliffe is also a director or trustee of several not-for-profit entities.

* Determined to be an “Interested Trustee” by virtue of, among other things, his or her affiliation with the trust or various entities under common control with FMR.

+ The information includes the Trustee's principal occupation during the last five years and other information relating to the experience, attributes, and skills relevant to the Trustee's qualifications to serve as a Trustee, which led to the conclusion that the Trustee should serve as a Trustee for the fund.

Independent Trustees:

Correspondence intended for an Independent Trustee may be sent to Fidelity Investments, P.O. Box 55235, Boston, Massachusetts 02205-5235.

Name, Year of Birth; Principal Occupations and Other Relevant Experience+

Elizabeth S. Acton (1951)

Year of Election or Appointment: 2013

Trustee

Ms. Acton also serves as Trustee of other Fidelity^® funds. Prior to her retirement in April 2012, Ms. Acton was Executive Vice President, Finance (2011-2012), Executive Vice President, Chief Financial Officer (2002-2011), and Treasurer (2004-2005) of Comerica Incorporated (financial services). Prior to joining Comerica, Ms. Acton held a variety of positions at Ford Motor Company (1983-2002), including Vice President and Treasurer (2000-2002) and Executive Vice President and Chief Financial Officer of Ford Motor Credit Company (1998-2000). Ms. Acton currently serves as a member of the Board of Directors and Audit and Finance Committees of Beazer Homes USA, Inc. (homebuilding, 2012-present). Previously, Ms. Acton served as a Member of the Advisory Board of certain Fidelity^® funds (2013-2016).

John Engler (1948)

Year of Election or Appointment: 2014

Trustee

Mr. Engler also serves as Trustee of other Fidelity^® funds. He serves on the board of directors for Universal Forest Products (manufacturer and distributor of wood and wood-alternative products, 2003-present) and K12 Inc. (technology-based education company, 2012-present). Previously, Mr. Engler served as a Member of the Advisory Board of certain Fidelity^® funds (2014-2016), president of the Business Roundtable (2011-2017), a trustee of The Munder Funds (2003-2014), president and CEO of the National Association of Manufacturers (2004-2011), member of the Board of Trustees of the Annie E. Casey Foundation (2004-2015), and as governor of Michigan (1991-2003). He is a past chairman of the National Governors Association.

Albert R. Gamper, Jr. (1942)

Year of Election or Appointment: 2012

Trustee

Mr. Gamper also serves as Trustee of other Fidelity^® funds. Prior to his retirement in December 2004, Mr. Gamper served as Chairman of the Board of CIT Group Inc. (commercial finance). During his tenure with CIT Group Inc. Mr. Gamper served in numerous senior management positions, including Chairman (1987-1989; 1999-2001; 2002-2004), Chief Executive Officer (1987-2004), and President (2002-2003). Mr. Gamper currently serves as a member of the Board of Directors of Public Service Enterprise Group (utilities, 2000-present), and Member of the Board of Trustees of Barnabas Health Care System (1997-present). Previously, Mr. Gamper served as Chairman (2012-2015) and Vice Chairman (2011-2012) of the Independent Trustees of certain Fidelity^® funds and as Chairman of the Board of Governors, Rutgers University (2004-2007).

Robert F. Gartland (1951)

Year of Election or Appointment: 2013

Trustee

Mr. Gartland also serves as Trustee of other Fidelity^® funds. Mr. Gartland is Chairman and an investor in Gartland & Mellina Group Corp. (consulting, 2009-present). Previously, Mr. Gartland served as a partner and investor of Vietnam Partners LLC (investments and consulting, 2008-2011). Prior to his retirement, Mr. Gartland held a variety of positions at Morgan Stanley (financial services, 1979-2007), including Managing Director (1987-2007), and Chase Manhattan Bank (1975-1978).

Arthur E. Johnson (1947)

Year of Election or Appointment: 2013

Trustee

Vice Chairman of the Independent Trustees

Mr. Johnson also serves as Trustee of other Fidelity^® funds. Mr. Johnson serves as a member of the Board of Directors of Eaton Corporation plc (diversified power management, 2009-present) and Booz Allen Hamilton (management consulting, 2011-present). Prior to his retirement, Mr. Johnson served as Senior Vice President of Corporate Strategic Development of Lockheed Martin Corporation (defense contractor, 1999-2009). He previously served on the Board of Directors of IKON Office Solutions, Inc. (1999-2008), AGL Resources, Inc. (holding company, 2002-2016), and Delta Airlines (2005-2007). Mr. Arthur E. Johnson is not related to Ms. Abigail P. Johnson.

Michael E. Kenneally (1954)

Year of Election or Appointment: 2013

Trustee

Mr. Kenneally also serves as Trustee of other Fidelity^® funds. Prior to his retirement, Mr. Kenneally served as Chairman and Global Chief Executive Officer of Credit Suisse Asset Management. Before joining Credit Suisse, he was an Executive Vice President and Chief Investment Officer for Bank of America Corporation. Earlier roles at Bank of America included Director of Research, Senior Portfolio Manager and Research Analyst, and Mr. Kenneally was awarded the Chartered Financial Analyst (CFA) designation in 1991.

Marie L. Knowles (1946)

Year of Election or Appointment: 2013

Trustee

Chairman of the Independent Trustees

Ms. Knowles also serves as Trustee of other Fidelity^® funds. Prior to Ms. Knowles' retirement in June 2000, she served as Executive Vice President and Chief Financial Officer of Atlantic Richfield Company (ARCO) (diversified energy, 1996-2000). From 1993 to 1996, she was a Senior Vice President of ARCO and President of ARCO Transportation Company (pipeline and tanker operations). Ms. Knowles currently serves as a Director and Chairman of the Audit Committee of McKesson Corporation (healthcare service, since 2002). Ms. Knowles is a member of the Board of the Santa Catalina Island Company (real estate, 2009-present). Ms. Knowles is a Member of the Investment Company Institute Board of Governors and a Member of the Governing Council of the Independent Directors Council (2014-present). She also serves as a member of the Advisory Board for the School of Engineering of the University of Southern California. Previously, Ms. Knowles served as a Director of Phelps Dodge Corporation (copper mining and manufacturing, 1994-2007), URS Corporation (engineering and construction, 2000-2003) and America West (airline, 1999-2002). Ms. Knowles previously served as Vice Chairman of the Independent Trustees of certain Fidelity^® funds (2012-2015).

Mark A. Murray (1954)

Year of Election or Appointment: 2016

Trustee

Mr. Murray also serves as Trustee of other Fidelity^® funds. Mr. Murray is Vice Chairman (2013-present) of Meijer, Inc. (regional retail chain). Previously, Mr. Murray served as a Member of the Advisory Board of certain Fidelity® funds (2016) and as Co-Chief Executive Officer (2013-2016) and President (2006-2013) of Meijer, Inc. Mr. Murray serves as a member of the Board of Directors and Nuclear Review and Public Policy and Responsibility Committees of DTE Energy Company (diversified energy company, 2009-present). Mr. Murray also serves as a member of the Board of Directors of Spectrum Health (not-for-profit health system, 2015-present). Mr. Murray previously served as President of Grand Valley State University (2001-2006), Treasurer for the State of Michigan (1999-2001), Vice President of Finance and Administration for Michigan State University (1998-1999), and a member of the Board of Directors and Audit Committee and Chairman of the Nominating and Corporate Governance Committee of Universal Forest Products, Inc. (manufacturer and distributor of wood and wood-alternative products, 2004-2016). Mr. Murray is also a director or trustee of many community and professional organizations.

Advisory Board Members and Officers:

Correspondence intended for an officer may be sent to Fidelity Investments, 245 Summer Street, Boston, Massachusetts 02210. Officers appear below in alphabetical order.

Name, Year of Birth; Principal Occupation

Elizabeth Paige Baumann (1968)

Year of Election or Appointment: 2017

Anti-Money Laundering (AML) Officer

Ms. Baumann also serves as AML Officer of other funds. She is Chief AML Officer (2012-present) and Senior Vice President (2014-present) of FMR LLC (diversified financial services company) and is an employee of Fidelity Investments. Previously, Ms. Baumann served as AML Officer of the funds (2012-2016), and Vice President (2007-2014) and Deputy Anti-Money Laundering Officer (2007-2012) of FMR LLC.

Marc R. Bryant (1966)

Year of Election or Appointment: 2015

Secretary and Chief Legal Officer (CLO)

Mr. Bryant also serves as Secretary and CLO of other funds. Mr. Bryant serves as CLO, Secretary, and Senior Vice President of Fidelity Management & Research Company (investment adviser firm, 2015-present) and FMR Co., Inc. (investment adviser firm, 2015-present); Secretary of Fidelity SelectCo, LLC (investment adviser firm, 2015-present) and Fidelity Investments Money Management, Inc. (investment adviser firm, 2015-present); and CLO of Fidelity Management & Research (Hong Kong) Limited and FMR Investment Management (UK) Limited (investment adviser firms, 2015-present) and Fidelity Management & Research (Japan) Limited (investment adviser firm, 2016-present). He is Senior Vice President and Deputy General Counsel of FMR LLC (diversified financial services company). Previously, Mr. Bryant served as Secretary and CLO of Fidelity Rutland Square Trust II (2010-2014) and Assistant Secretary of Fidelity's Fixed Income and Asset Allocation Funds (2013-2015). Prior to joining Fidelity Investments, Mr. Bryant served as a Senior Vice President and the Head of Global Retail Legal for AllianceBernstein L.P. (2006-2010), and as the General Counsel for ProFund Advisors LLC (2001-2006).

Jonathan Davis (1968)

Year of Election or Appointment: 2013

Assistant Treasurer

Mr. Davis also serves as Assistant Treasurer of other funds. Mr. Davis serves as Assistant Treasurer of FMR Capital, Inc. (2017-present) and is an employee of Fidelity Investments. Previously, Mr. Davis served as Vice President and Associate General Counsel of FMR LLC (diversified financial services company, 2003-2010).

Adrien E. Deberghes (1967)

Year of Election or Appointment: 2013

Assistant Treasurer

Mr. Deberghes also serves as an officer of other funds. He serves as Assistant Treasurer of FMR Capital, Inc. (2017-present), Executive Vice President of Fidelity Investments Money Management, Inc. (FIMM) (investment adviser firm, 2016-present), and is an employee of Fidelity Investments (2008-present). Previously, Mr. Deberghes served as President and Treasurer of certain Fidelity^® funds (2013-2018). Prior to joining Fidelity Investments, Mr. Deberghes was Senior Vice President of Mutual Fund Administration at State Street Corporation (2007-2008), Senior Director of Mutual Fund Administration at Investors Bank & Trust (2005-2007), and Director of Finance for Dunkin' Brands (2000-2005). Previously, Mr. Deberghes served in other fund officer roles.

Laura M. Del Prato (1964)

Year of Election or Appointment: 2018

President and Treasurer

Ms. Del Prato also serves as an officer of other funds. Ms. Del Prato is an employee of Fidelity Investments (2017-present). Prior to joining Fidelity Investments, Ms. Del Prato served as a Managing Director and Treasurer of the JPMorgan Mutual Funds (2014-2017). Prior to JPMorgan, Ms. Del Prato served as a partner at Cohen Fund Audit Services (accounting firm, 2012-2013) and KPMG LLP (accounting firm, 2004-2012).

Howard J. Galligan III (1966)

Year of Election or Appointment: 2014

Chief Financial Officer

Mr. Galligan also serves as Chief Financial Officer of other funds. Mr. Galligan serves as President of Fidelity Pricing and Cash Management Services (FPCMS) (2014-present). Previously, Mr. Galligan served as a Director of Strategic Advisers LLC (investment adviser firm, 2008-2018), Chief Administrative Officer of Asset Management (2011-2014), and Chief Operating Officer and Senior Vice President of Investment Support for Strategic Advisers, Inc. (2003-2011).

Colm A. Hogan (1973)

Year of Election or Appointment: 2016

Assistant Treasurer

Mr. Hogan also serves as an officer of other funds. Mr. Hogan serves as Assistant Treasurer of FMR Capital, Inc. (2017-present) and is an employee of Fidelity Investments (2005-present). Previously, Mr. Hogan served as Assistant Treasurer of certain Fidelity^® funds (2016-2018).

Chris Maher (1972)

Year of Election or Appointment: 2013

Assistant Treasurer

Mr. Maher serves as Assistant Treasurer of other funds. Mr. Maher is Vice President of Valuation Oversight, serves as Assistant Treasurer of FMR Capital, Inc. (2017-present), and is an employee of Fidelity Investments. Previously, Mr. Maher served as Vice President of Asset Management Compliance (2013), Vice President of the Program Management Group of FMR (investment adviser firm, 2010-2013), and Vice President of Valuation Oversight (2008-2010).

John B. McGinty, Jr. (1962)

Year of Election or Appointment: 2016

Chief Compliance Officer

Mr. McGinty also serves as Chief Compliance Officer of other funds. Mr. McGinty is Senior Vice President of Asset Management Compliance for Fidelity Investments and is an employee of Fidelity Investments (2016-present). Mr. McGinty previously served as Vice President, Senior Attorney at Eaton Vance Management (investment management firm, 2015-2016), and prior to Eaton Vance as global CCO for all firm operations and registered investment companies at GMO LLC (investment management firm, 2009-2015). Before joining GMO LLC, Mr. McGinty served as Senior Vice President, Deputy General Counsel for Fidelity Investments (2007-2009).

Rieco E. Mello (1969)

Year of Election or Appointment: 2017

Assistant Treasurer

Mr. Mello also serves as Assistant Treasurer of other funds. Mr. Mello serves as Assistant Treasurer of FMR Capital, Inc. (2017-present) and is an employee of Fidelity Investments (1995-present).

Jamie Pagliocco (1964)

Year of Election or Appointment: 2017

Vice President

Mr. Pagliocco also serves as Vice President of other funds. Mr. Pagliocco serves as Chief Investment Officer of FMR's Bond Group (2017-present) and is an employee of Fidelity Investments (2001-present).

Jason P. Pogorelec (1975)

Year of Election or Appointment: 2015

Assistant Secretary

Mr. Pogorelec also serves as Assistant Secretary of other funds. Mr. Pogorelec serves as Vice President, Associate General Counsel (2010-present) and is an employee of Fidelity Investments (2006-present).

Nancy D. Prior (1967)

Year of Election or Appointment: 2014

Vice President

Ms. Prior also serves as Vice President of other funds. Ms. Prior serves as a Director of FMR Investment Management (UK) Limited (investment adviser firm, 2015-present), President (2016-present) and Director (2014-present) of Fidelity Investments Money Management, Inc. (FIMM) (investment adviser firm), President, Fixed Income (2014-present), Vice Chairman of FIAM LLC (investment adviser firm, 2014-present), and is an employee of Fidelity Investments (2002-present). Previously, Ms. Prior served as Vice President of Fidelity's Money Market Funds (2012-2014), President, Money Market and Short Duration Bond Group of Fidelity Management & Research (FMR) (investment adviser firm, 2013-2014), President, Money Market Group of FMR (2011-2013), Managing Director of Research (2009-2011), Senior Vice President and Deputy General Counsel (2007-2009), and Assistant Secretary of certain Fidelity^® funds (2008-2009).

Stacie M. Smith (1974)

Year of Election or Appointment: 2013

Assistant Treasurer

Ms. Smith also serves as an officer of other funds. Ms. Smith serves as Assistant Treasurer of FMR Capital, Inc. (2017-present), is an employee of Fidelity Investments (2009-present), and has served in other fund officer roles. Prior to joining Fidelity Investments, Ms. Smith served as Senior Audit Manager of Ernst & Young LLP (accounting firm, 1996-2009). Previously, Ms. Smith served as Assistant Treasurer (2013-2018) and Deputy Treasurer (2013-2016) of certain Fidelity^® funds.

Marc L. Spector (1972)

Year of Election or Appointment: 2016

Deputy Treasurer

Mr. Spector also serves as an officer of other funds. Mr. Spector serves as Assistant Treasurer of FMR Capital, Inc. (2017-present) and is an employee of Fidelity Investments (2016-present). Prior to joining Fidelity Investments, Mr. Spector served as Director at the Siegfried Group (accounting firm, 2013-2016), and prior to Siegfried Group as audit senior manager at Deloitte & Touche (accounting firm, 2005-2013).

Renee Stagnone (1975)

Year of Election or Appointment: 2016

Assistant Treasurer

Ms. Stagnone also serves as an officer of other funds. Ms. Stagnone serves as Assistant Treasurer of FMR Capital, Inc. (2017-present) and is an employee of Fidelity Investments (1997-present). Previously, Ms. Stagnone served as Deputy Treasurer of certain Fidelity^® funds (2013-2016).

Standing Committees of the Trustees. The Board of Trustees has established various committees to support the Independent Trustees in acting independently in pursuing the best interests of the funds and their shareholders. Currently, the Board of Trustees has four standing committees. The members of each committee are Independent Trustees.

The Operations Committee is composed of all of the Independent Trustees, with Ms. Knowles currently serving as Chair. The committee normally meets at least six times a year, or more frequently as called by the Chair, and serves as a forum for consideration of issues of importance to, or calling for particular determinations by, the Independent Trustees. The committee considers matters involving potential conflicts of interest between the funds and FMR and its affiliates and reviews proposed contracts and the proposed continuation of contracts between the funds and FMR and its affiliates, and annually reviews and makes recommendations regarding contracts with third parties unaffiliated with FMR, including insurance coverage and custody agreements. The committee has oversight of compliance issues not specifically within the scope of any other committee. These matters include, but are not limited to, significant non-conformance with contract requirements and other significant regulatory matters and recommending to the Board of Trustees the designation of a person to serve as the funds' Chief Compliance Officer (CCO). The committee (i) serves as the primary point of contact for the CCO with regard to Board-related functions; (ii) oversees the annual performance review of the CCO; (iii) makes recommendations concerning the CCO's compensation; and (iv) makes recommendations as needed in respect of the removal of the CCO. The committee is also responsible for definitive action on all compliance matters involving the potential for significant reimbursement by FMR. During the fiscal year ended August 31, 2017, the committee held 12 meetings.

The Audit Committee is composed of all of the Independent Trustees, with Ms. Acton currently serving as Chair. At least one committee member will be an "audit committee financial expert" as defined by the SEC. The committee normally meets four times a year, or more frequently as called by the Chair or a majority of committee members. The committee meets separately, at least annually, with the funds' Treasurer, with the funds' Chief Financial Officer, with personnel responsible for the internal audit function of FMR LLC, with the funds' outside auditors, and with the funds' CCO. The committee has direct responsibility for the appointment, compensation, and oversight of the work of the outside auditors employed by the funds. The committee assists the Trustees in overseeing and monitoring: (i) the systems of internal accounting and financial controls of the funds and the funds' service providers (to the extent such controls impact the funds' financial statements); (ii) the funds' auditors and the annual audits of the funds' financial statements; (iii) the financial reporting processes of the funds; (iv) whistleblower reports; and (v) the accounting policies and disclosures of the funds. The committee considers and acts upon (i) the provision by any outside auditor of any non-audit services for any fund, and (ii) the provision by any outside auditor of certain non-audit services to fund service providers and their affiliates to the extent that such approval (in the case of this clause (ii)) is required under applicable regulations of the SEC. It is responsible for approving all audit engagement fees and terms for the funds and for resolving disagreements between a fund and any outside auditor regarding any fund's financial reporting. Auditors of the funds report directly to the committee. The committee will obtain assurance of independence and objectivity from the outside auditors, including a formal written statement delineating all relationships between the auditor and the funds and any service providers consistent with the rules of the Public Company Accounting Oversight Board. It oversees and receives reports on the funds' service providers' internal controls and reviews the adequacy and effectiveness of the service providers' accounting and financial controls, including: (i) any significant deficiencies or material weaknesses in the design or operation of internal controls over financial reporting that are reasonably likely to adversely affect the funds' ability to record, process, summarize, and report financial data; (ii) any change in the fund's internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the fund's internal control over financial reporting; and (iii) any fraud, whether material or not, that involves management or other employees who have a significant role in the funds' or service providers internal controls over financial reporting. The committee will also review any correspondence with regulators or governmental agencies or published reports that raise material issues regarding the funds' financial statements or accounting policies. These matters may also be reviewed by the Operations Committee. The committee reviews at least annually a report from each outside auditor describing any material issues raised by the most recent internal quality control, peer review, or Public Company Accounting Oversight Board examination of the auditing firm and any material issues raised by any inquiry or investigation by governmental or professional authorities of the auditing firm and in each case any steps taken to deal with such issues. The committee will oversee and receive reports on the funds' financial reporting process from the funds' Treasurer and outside auditors and will oversee the resolution of any disagreements concerning financial reporting among applicable parties. The committee will discuss with FMR, the funds' Treasurer, outside auditors and, if appropriate, internal audit personnel of FMR LLC their qualitative judgments about the appropriateness and acceptability of accounting principles and financial disclosure practices used or proposed for adoption by the funds. The committee will review with FMR, the funds' outside auditor, internal audit personnel of FMR LLC and legal counsel, as appropriate, matters related to the audits of the funds' financial statements. The committee will discuss regularly and oversee the review of the internal controls of the funds and their service providers with respect to accounting, financial matters and risk management programs related to the funds. The committee will review periodically the funds' major internal controls exposures and the steps that have been taken to monitor and control such exposures. During the fiscal year ended August 31, 2017, the committee held five meetings.

The Fair Valuation Committee is composed of all of the Independent Trustees, with Mr. Murray currently serving as Chair. The Committee normally meets quarterly, or more frequently as called by the Chair. The Fair Valuation Committee reviews and approves annually Fair Value Committee Policies recommended by the FMR Fair Value Committee and oversees particular valuations or fair valuation methodologies employed by the FMR Fair Value Committee as circumstances may require. The Committee also reviews actions taken by the FMR Fair Value Committee. The Committee does not oversee the day-to-day operational aspects of the valuation and calculation of the net asset value of the funds, which have been delegated to the FMR Fair Value Committee and FSC. During the fiscal year ended August 31, 2017, the committee held four meetings.

The Governance and Nominating Committee is composed of Ms. Knowles (Chair) and Messrs. Johnson (Vice Chair) and Kenneally. The committee meets as called by the Chair. With respect to fund governance and board administration matters, the committee periodically reviews procedures of the Board of Trustees and its committees (including committee charters) and periodically reviews compensation of Independent Trustees. The committee monitors corporate governance matters and makes recommendations to the Board of Trustees on the frequency and structure of the Board of Trustee meetings and on any other aspect of Board procedures. It acts as the administrative committee under the retirement plan for Independent Trustees who retired prior to December 30, 1996 and under the fee deferral plan for Independent Trustees. It reviews the performance of legal counsel employed by the funds and the Independent Trustees. On behalf of the Independent Trustees, the committee will make such findings and determinations as to the independence of counsel for the Independent Trustees as may be necessary or appropriate under applicable regulations or otherwise. The committee is also responsible for Board administrative matters applicable to Independent Trustees, such as expense reimbursement policies and compensation for attendance at meetings, conferences and other events. The committee monitors compliance with, acts as the administrator of, and makes determinations in respect of, the provisions of the code of ethics and any supplemental policies regarding personal securities transactions applicable to the Independent Trustees. The committee monitors the functioning of each Board committee and makes recommendations for any changes, including the creation or elimination of standing or ad hoc Board committees. The committee monitors regulatory and other developments to determine whether to recommend modifications to the committee's responsibilities or other Trustee policies and procedures in light of rule changes, reports concerning "best practices" in corporate governance and other developments in mutual fund governance. The committee meets with Independent Trustees at least once a year to discuss matters relating to fund governance. The committee recommends that the Board establish such special or ad hoc Board committees as may be desirable or necessary from time to time in order to address ethical, legal, or other matters that may arise. The committee also oversees the annual self-evaluation of the Board of Trustees and establishes procedures to allow it to exercise this oversight function. In conducting this oversight, the committee shall address all matters that it considers relevant to the performance of the Board of Trustees and shall report the results of its evaluation to the Board of Trustees, including any recommended amendments to the principles of governance, and any recommended changes to the funds' or the Board of Trustees' policies, procedures, and structures. The committee reviews periodically the size and composition of the Board of Trustees as a whole and recommends, if necessary, measures to be taken so that the Board of Trustees reflects the appropriate balance of knowledge, experience, skills, expertise, and diversity required for the Board as a whole and contains at least the minimum number of Independent Trustees required by law. The committee makes nominations for the election or appointment of Independent Trustees and non-management Members of any Advisory Board, and for membership on committees. The committee has the authority to retain and terminate any third-party advisers, including authority to approve fees and other retention terms. Such advisers may include search firms to identify Independent Trustee candidates and board compensation consultants. The committee may conduct or authorize investigations into or studies of matters within the committee's scope of responsibilities, and may retain, at the funds' expense, such independent counsel or other advisers as it deems necessary. The committee will consider nominees to the Board of Trustees recommended by shareholders based upon the criteria applied to candidates presented to the committee by a search firm or other source. Recommendations, along with appropriate background material concerning the candidate that demonstrates his or her ability to serve as an Independent Trustee of the funds, should be submitted to the Chair of the committee at the address maintained for communications with Independent Trustees. If the committee retains a search firm, the Chair will generally forward all such submissions to the search firm for evaluation. With respect to the criteria for selecting Independent Trustees, it is expected that all candidates will possess the following minimum qualifications: (i) unquestioned personal integrity; (ii) not an interested person of the funds within the meaning of the 1940 Act; (iii) does not have a material relationship (e.g., commercial, banking, consulting, legal, or accounting) with the adviser, any sub-adviser or their affiliates that could create an appearance of lack of independence in respect of the funds; (iv) has the disposition to act independently in respect of FMR and its affiliates and others in order to protect the interests of the funds and all shareholders; (v) ability to attend regularly scheduled Board meetings during the year; (vi) demonstrates sound business judgment gained through broad experience in significant positions where the candidate has dealt with management, technical, financial, or regulatory issues; (vii) sufficient financial or accounting knowledge to add value in the complex financial environment of the funds; (viii) experience on corporate or other institutional oversight bodies having similar responsibilities, but which board memberships or other relationships could not result in business or regulatory conflicts with the funds; and (ix) capacity for the hard work and attention to detail that is required to be an effective Independent Trustee in light of the funds' complex regulatory, operational, and marketing setting. The Governance and Nominating Committee may determine that a candidate who does not have the type of previous experience or knowledge referred to above should nevertheless be considered as a nominee if the Governance and Nominating Committee finds that the candidate has additional qualifications such that his or her qualifications, taken as a whole, demonstrate the same level of fitness to serve as an Independent Trustee. During the fiscal year ended August 31, 2017, the committee held five meetings.

The following table sets forth information describing the dollar range of equity securities beneficially owned by each Trustee in the fund and in all funds in the aggregate within the same fund family overseen by the Trustee for the calendar year ended December 31, 2017.

Interested Trustees
DOLLAR RANGE OF FUND SHARES	Abigail P.Johnson	JenniferToolin McAuliffe
Fidelity® Low Duration Bond Factor ETF	none	none
AGGREGATE DOLLAR RANGE OF FUND SHARES IN ALL FUNDS OVERSEEN WITHIN FUND FAMILY	over $100,000	over $100,000

Independent Trustees
DOLLAR RANGE OF FUND SHARES	Elizabeth S.Acton	JohnEngler	Albert R.Gamper, Jr.	Robert F.Gartland
Fidelity® Low Duration Bond Factor ETF	none	none	none	none
AGGREGATE DOLLAR RANGE OF FUND SHARES IN ALL FUNDS OVERSEEN WITHIN FUND FAMILY	over $100,000	over $100,000	over $100,000	over $100,000
DOLLAR RANGE OF FUND SHARES	Arthur E.Johnson	Michael E.Kenneally	Marie L.Knowles	Mark A.Murray
Fidelity® Low Duration Bond Factor ETF	none	none	none	none
AGGREGATE DOLLAR RANGE OF FUND SHARES IN ALL FUNDS OVERSEEN WITHIN FUND FAMILY	over $100,000	over $100,000	over $100,000	$50,001 - $100,000

The following table sets forth information describing the compensation of each Trustee and Member of the Advisory Board (if any) for his or her services for the fiscal year ending August 31, 2018, or calendar year ended December 31, 2017, as applicable.

Compensation Table⁽¹⁾
AGGREGATE COMPENSATION FROM A FUND	Elizabeth S.Acton	JohnEngler	Albert R.Gamper, Jr.	Robert F.Gartland
Fidelity® Low Duration Bond Factor ETF⁽²⁾	$8	$7	$7	$7
TOTAL COMPENSATION FROM THE FUND COMPLEX⁽³⁾	$458,500	$431,000	$431,000	$431,000
AGGREGATE COMPENSATION FROM A FUND	Arthur E.Johnson	Michael E.Kenneally	Marie L.Knowles	Mark A.Murray
Fidelity® Low Duration Bond Factor ETF⁽²⁾	$8	$7	$10	$7
TOTAL COMPENSATION FROM THE FUND COMPLEX⁽³⁾	$491,500	$436,000	$577,500	$429,500

(1) Abigail P. Johnson and Jennifer Toolin McAuliffe are interested persons and are compensated by Fidelity.

(2) Estimated for the fund's first full year.

(3) Reflects compensation received for the calendar year ended December 31, 2017 for 238 funds of 31 trusts (including Fidelity Central Investment Portfolios II LLC). Compensation figures include cash and may include amounts elected to be deferred. Certain individuals elected voluntarily to defer a portion of their compensation as follows: Elizabeth S. Acton, $60,000; John Engler, $220,956; Robert F. Gartland, $180,000; Michael E. Kenneally, $120,000; Marie L. Knowles, $150,000; and Mark A. Murray, $220,956.

As of the public offering of shares of the fund, 100% of the fund's total outstanding shares was held by FMR and/or another entity or entities of which FMR LLC is the ultimate parent. By virtue of her ownership interest in FMR LLC, as described in the "Control of Investment Advisers" section, Ms. Abigail P. Johnson may be deemed to be a beneficial owner of these shares.

CONTROL OF INVESTMENT ADVISERS

FMR LLC, as successor by merger to FMR Corp., is the ultimate parent company of FIMM, FMR Investment Management (UK) Limited (FMR UK), Fidelity Management & Research (Hong Kong) Limited (FMR H.K.), and Fidelity Management & Research (Japan) Limited (FMR Japan). The voting common shares of FMR LLC are divided into two series. Series B is held predominantly by members of the Abigail P. Johnson family, directly or through trusts, and is entitled to 49% of the vote on any matter acted upon by the voting common shares. Series A is held predominantly by non-Johnson family member employees of FMR LLC and its affiliates and is entitled to 51% of the vote on any such matter. The Johnson family group and all other Series B shareholders have entered into a shareholders' voting agreement under which all Series B shares will be voted in accordance with the majority vote of Series B shares. Under the Investment Company Act of 1940 (1940 Act), control of a company is presumed where one individual or group of individuals owns more than 25% of the voting securities of that company. Therefore, through their ownership of voting common shares and the execution of the shareholders' voting agreement, members of the Johnson family may be deemed, under the 1940 Act, to form a controlling group with respect to FMR LLC.

At present, the primary business activities of FMR LLC and its subsidiaries are: (i) the provision of investment advisory, management, shareholder, investment information and assistance and certain fiduciary services for individual and institutional investors; (ii) the provision of securities brokerage services; (iii) the management and development of real estate; and (iv) the investment in and operation of a number of emerging businesses.

FIMM, FMR UK, FMR H.K., FMR Japan, FDC, and the fund have adopted a code of ethics under Rule 17j-1 of the 1940 Act that sets forth employees' fiduciary responsibilities regarding the fund, establishes procedures for personal investing, and restricts certain transactions. Employees subject to the code of ethics, including Fidelity investment personnel, may invest in securities for their own investment accounts, including securities that may be purchased or held by the fund.

MANAGEMENT CONTRACT

The fund has entered into a management contract with FIMM, pursuant to which FIMM furnishes investment advisory and other services.

Management Services. Under the terms of its management contract with the fund, FIMM acts as investment adviser and, subject to the supervision of the Board of Trustees, has overall responsibility for directing the investments of the fund in accordance with its investment objective, policies and limitations. FIMM also provides the fund with all necessary office facilities and personnel for servicing the fund's investments, compensates all officers of the fund and all Trustees who are interested persons of the trust or of FIMM, and compensates all personnel of the fund or FIMM performing services relating to research, statistical and investment activities.

In addition, FIMM or its affiliates, subject to the supervision of the Board of Trustees, provide the management and administrative services necessary for the operation of the fund. These services include providing facilities for maintaining the fund's organization; supervising relations with custodians, transfer and pricing agents, accountants, underwriters and other persons dealing with the fund; preparing all general shareholder communications and conducting shareholder relations; maintaining the fund's records and the registration of the fund's shares under federal securities laws and making necessary filings under state securities laws; developing management and shareholder services for the fund; and furnishing reports, evaluations and analyses on a variety of subjects to the Trustees.

Management-Related Expenses. Under the terms of the fund's management contract, FIMM, either itself or through an affiliate, is responsible for payment of all operating expenses of the fund with limited exceptions. Specific expenses payable by FIMM include legal expenses, fees of the custodian, auditor, and interested Trustees, the fund's proportionate share of insurance premiums and Investment Company Institute dues, and the costs of registering shares under federal securities laws and making necessary filings under state securities laws. The fund's management contract further provides that FIMM will pay for typesetting, printing, and mailing prospectuses, statements of additional information, notices, and reports to shareholders. FIMM also pays all fees associated with transfer agency services and pricing and bookkeeping services, and the cost of administration of the fund's securities lending program.

FIMM pays all other expenses of the fund with the following exceptions:expenses for typesetting, printing, and mailing proxy materials to shareholders, all other expenses incidental to holding meetings of the fund's shareholders (including proxy solicitation), fees and expenses of the Independent Trustees, interest, taxes, brokerage commissions (if any), and such non-recurring expenses as may arise, including costs of any litigation to which the fund may be a party, and any obligation it may have to indemnify its officers and Trustees with respect to litigation.

Management Fee.

For the services of FIMM under the management contract, the fund pays FIMM a monthly management fee at the annual rate of 0.15% of the fund's average net assets throughout the month.

FIMM may, from time to time, voluntarily reimburse all or a portion of a fund's or, in the case of a multiple class fund, a class's operating expenses. FIMM retains the ability to be repaid for these expense reimbursements in the amount that expenses fall below the limit prior to the end of the fiscal year.

Expense reimbursements will increase returns and yield, and repayment of the reimbursement will decrease returns and yield.

Sub-Advisers - FMR UK, FMR H.K., and FMR Japan. On behalf of the fund, FIMM has entered into sub-advisory agreements with FMR H.K. and FMR Japan. On behalf of the fund, FIMM has entered into a sub-advisory agreement with FMR UK. Pursuant to the sub-advisory agreements, FIMM may receive from the sub-advisers investment research and advice on issuers outside the United States (non-discretionary services) and FIMM may grant the sub-advisers investment management authority and the authority to buy and sell securities if FIMM believes it would be beneficial to the fund (discretionary services). FIMM, and not the fund, pays the sub-advisers.

Brandon Bettencourt is co-manager of Fidelity^® Low Duration Bond Factor ETF and receives compensation for his services. Jay Small is co-manager of Fidelity^® Low Duration Bond Factor ETF and receives compensation for his services. As of March 31, 2018, portfolio manager compensation generally consists of a fixed base salary determined periodically (typically annually), a bonus, in certain cases, participation in several types of equity-based compensation plans, and, if applicable, relocation plan benefits. A portion of each portfolio manager’s compensation may be deferred based on criteria established by FMR or at the election of the portfolio manager.

Each portfolio manager's base salary is determined by level of responsibility and tenure at FMR or its affiliates. The primary components of each portfolio manager’s bonus are based on (i) the pre-tax investment performance of the portfolio manager’s fund(s) and account(s) measured against a benchmark index (which may be a customized benchmark index developed by FMR) assigned to each fund or account, and (ii) the investment performance of other FMR taxable bond funds and accounts. The pre-tax investment performance of each portfolio manager’s fund(s) and account(s) is weighted according to his tenure on those fund(s) and account(s) and the average asset size of those fund(s) and account(s) over his tenure. Each component is calculated separately over the portfolio manager’s tenure on those fund(s) and account(s) over a measurement period that initially is contemporaneous with his tenure, but that eventually encompasses rolling periods of up to three years for the comparison to a benchmark index. A smaller, subjective component of each portfolio manager’s bonus is based on the portfolio manager’s overall contribution to management of FMR. The portion of each portfolio manager’s bonus that is linked to the investment performance of Fidelity^® Low Duration Bond Factor ETF is based on the fund’s pre-tax investment performance relative to the performance of the fund's customized benchmark index. For the three-year period, the bonus takes into account a portfolio manager's performance in terms of his management of investment risk. Each portfolio manager also is compensated under equity-based compensation plans linked to increases or decreases in the net asset value of the stock of FMR LLC, FMR’s parent company. FMR LLC is a diverse financial services company engaged in various activities that include fund management, brokerage, retirement, and employer administrative services. If requested to relocate their primary residence, portfolio managers also may be eligible to receive benefits, such as home sale assistance and payment of certain moving expenses, under relocation plans for most full-time employees of FMR LLC and its affiliates.

A portfolio manager’s compensation plan may give rise to potential conflicts of interest. Although investors in the fund may invest through either tax-deferred accounts or taxable accounts, a portfolio manager’s compensation is linked to the pre-tax performance of the fund, rather than its after-tax performance. A portfolio manager’s base pay tends to increase with additional and more complex responsibilities that include increased assets under management and a portion of the bonus relates to marketing efforts, which together indirectly link compensation to sales. When a portfolio manager takes over a fund or an account, the time period over which performance is measured may be adjusted to provide a transition period in which to assess the portfolio. The management of multiple funds and accounts (including proprietary accounts) may give rise to potential conflicts of interest if the funds and accounts have different objectives, benchmarks, time horizons, and fees as a portfolio manager must allocate his time and investment ideas across multiple funds and accounts. In addition, a fund’s trade allocation policies and procedures may give rise to conflicts of interest if the fund’s orders do not get fully executed due to being aggregated with those of other accounts managed by FMR or an affiliate. A portfolio manager may execute transactions for another fund or account that may adversely impact the value of securities held by a fund. Securities selected for other funds or accounts may outperform the securities selected for the fund. Portfolio managers may be permitted to invest in the funds they manage, even if a fund is closed to new investors. Trading in personal accounts, which may give rise to potential conflicts of interest, is restricted by a fund’s Code of Ethics.

The following table provides information relating to other accounts managed by Mr. Bettencourt as of March 31, 2018:

	Registered Investment Companies*	Other Pooled Investment Vehicles	Other Accounts
Number of Accounts Managed	13	10	2
Number of Accounts Managed with Performance-Based Advisory Fees	none	none	none
Assets Managed (in millions)	$55,498	$3,405	$418
Assets Managed with Performance-Based Advisory Fees (in millions)	none	none	none

* Does not include Fidelity^® Low Duration Bond Factor ETF. This fund is expected to commence operations on June 12, 2018.

As of March 31, 2018, the dollar range of shares of Fidelity^® Low Duration Bond Factor ETF beneficially owned by Mr. Bettencourt was none.

The following table provides information relating to other accounts managed by Mr. Small as of March 31, 2018:

	Registered Investment Companies*	Other Pooled Investment Vehicles	Other Accounts
Number of Accounts Managed	13	10	2
Number of Accounts Managed with Performance-Based Advisory Fees	none	none	none
Assets Managed (in millions)	$55,498	$3,405	$418
Assets Managed with Performance-Based Advisory Fees (in millions)	none	none	none

* Does not include Fidelity^® Low Duration Bond Factor ETF. This fund is expected to commence operations on June 12, 2018.

As of March 31, 2018, the dollar range of shares of Fidelity^® Low Duration Bond Factor ETF beneficially owned by Mr. Small was none.

PROXY VOTING GUIDELINES

Fidelity^® Funds' Proxy Voting Guidelines

The following Proxy Voting Guidelines were established by the Board of Trustees of the Fidelity^® Funds, after consultation with Fidelity. (The guidelines are reviewed periodically by Fidelity and by the Independent Trustees of the Fidelity^® Funds, and, accordingly, are subject to change.)

I. General Principles

A. Voting of shares will be conducted in a manner consistent with the best interests of the Fidelity^® Funds¹. In other words, securities of a portfolio company will generally be voted in a manner consistent with the Guidelines and without regard to any other Fidelity companies' relationship, business or otherwise. In evaluating proposals, Fidelity (meaning FMR LLC or its applicable subsidiary) considers information from a number of sources, including management or shareholders of a company presenting a proposal and proxy voting advisory firms, and uses all this information as an input within the larger mix of information to which the Guidelines are applied.

B. Investment Proxy Research votes proxies. Like other Fidelity employees, Investment Proxy Research employees have a fiduciary duty to never place their own personal interest ahead of the interests of the Fidelity^® Funds. Fidelity employees, including Investment Proxy Research employees, are instructed to avoid situations that could present even the appearance of a conflict. In the event of a conflict of interest, Fidelity employees will follow the escalation process included in Fidelity's corporate policy on conflicts of interest.

C. For proposals not covered by the Guidelines or that involve other special circumstances, Fidelity evaluates them on a case-by-case basis with input from the appropriate Fidelity analyst or portfolio manager with review by a member of senior management within Investment Proxy Research or an attorney within Fidelity's General Counsel's office. If there is a significant pattern of these proposals or other special circumstances, Fidelity will refer them to the appropriate Fidelity^® Fund Board Committee.

D. Fidelity will vote on proposals not specifically addressed by the Guidelines based on an evaluation of a proposal's likelihood to enhance the long-term economic returns or profitability of the portfolio company or to maximize long-term shareholder value. Where information is not readily available to analyze the long-term economic impact of the proposal, Fidelity will generally abstain.

E. Many Fidelity^® Funds invest in voting securities issued by companies that are domiciled outside the United States and are not listed on a U.S. securities exchange. Corporate governance standards, legal or regulatory requirements and disclosure practices in foreign countries can differ from those in the United States. When voting proxies relating to non-U.S. securities, Fidelity will generally evaluate proposals in the context of the Guidelines and where applicable and feasible, take into consideration differing laws, regulations and practices in the relevant foreign market in determining how to vote shares.

F. In certain non-U.S. jurisdictions, shareholders voting shares of a portfolio company may be restricted from trading the shares for a period of time around the shareholder meeting date. Because such trading restrictions can hinder portfolio management and could result in a loss of liquidity for a fund, Fidelity will generally not vote proxies in circumstances where such restrictions apply. In addition, certain non-U.S. jurisdictions require voting shareholders to disclose current share ownership on a fund-by-fund basis. When such disclosure requirements apply, Fidelity will generally not vote proxies in order to safeguard fund holdings information.

G. Where a management-sponsored proposal is inconsistent with the Guidelines, Fidelity may receive a company's commitment to modify the proposal or its practice to conform to the Guidelines, and Fidelity will generally support management based on this commitment. If a company subsequently does not abide by its commitment, Fidelity will generally withhold authority for the election of directors at the next election.

II. Definitions (as used in this document)

A. Anti-Takeover Provision - includes fair price amendments; classified boards; "blank check" preferred stock; Golden Parachutes; supermajority provisions; Poison Pills; restricting the right to call special meetings; provisions restricting the right of shareholders to set board size; and any other provision that eliminates or limits shareholder rights.

B. Golden Parachute - Employment contracts, agreements, or policies that include an excise tax gross-up provision; single trigger for cash incentives; or may result in a lump sum payment of cash and acceleration of equity that may total more than three times annual compensation (salary and bonus) in the event of a termination following a change in control.

C. Greenmail - payment of a premium to repurchase shares from a shareholder seeking to take over a company through a proxy contest or other means.

D. Sunset Provision - a condition in a charter or plan that specifies an expiration date.

E. Poison Pill - a strategy employed by a potential take-over / target company to make its stock less attractive to an acquirer. Poison Pills are generally designed to dilute the acquirer's ownership and value in the event of a take-over.

F. Large-Capitalization Company - a company included in the Russell 1000^® Index or the Russell Global ex-U.S. Large Cap Index.

G. Small-Capitalization Company - a company not included in the Russell 1000^® Index or the Russell Global ex-U.S. Large Cap Index that is not a Micro-Capitalization Company.

H. Micro-Capitalization Company - a company with a market capitalization under US $300 million.

I. Evergreen Provision - a feature which provides for an automatic increase in the shares available for grant under an equity award plan on a regular basis.

III. Directors

A. Election of Directors

Fidelity will generally vote in favor of incumbent and nominee directors except where one or more such directors clearly appear to have failed to exercise reasonable judgment. Fidelity will also generally withhold authority for the election of all directors or directors on responsible committees if:

1. An Anti-Takeover Provision was introduced, an Anti-Takeover Provision was extended, or a new Anti-Takeover Provision was adopted upon the expiration of an existing Anti-Takeover Provision, without shareholder approval except as set forth below.

With respect to Poison Pills, however, Fidelity will consider not withholding authority on the election of directors if all of the features outlined under the Anti-Takeover Provisions below are met when a Poison Pill is introduced, extended, or adopted.

Fidelity will also consider not withholding authority on the election of directors when:

a. Fidelity determines that the Poison Pill was narrowly tailored to protect a specific tax benefit, and subject to an evaluation of its likelihood to enhance long-term economic returns or maximize long-term shareholder value; or

b. One or more of the features outlined under the Anti-Takeover Provisions below are not met if a board is willing to strongly consider seeking shareholder ratification of, or adding those features to an existing Poison Pill. In such a case, if the company does not take appropriate action prior to the next annual shareholder meeting, Fidelity will withhold authority on the election of directors.

2. Within the last year and without shareholder approval, a company's board of directors or compensation committee has repriced outstanding options, exchanged outstanding options for equity, or tendered cash for outstanding options.

3. Within the last year and without shareholder approval, a company's board of directors or compensation committee has adopted or extended a Golden Parachute.

4. The company has not adequately addressed concerns communicated by Fidelity in the process of discussing executive compensation.

5. To gain Fidelity's support on a proposal, the company made a commitment to modify a proposal or practice to conform to the Guidelines and the company has failed to act on that commitment.

6. The director attended fewer than 75% of the aggregate number of meetings of the board and its committees on which the director served during the company's prior fiscal year, absent extenuating circumstances.

7. The board is not composed of a majority of independent directors.

B. Contested Director Elections

Fidelity believes that strong management creates long-term shareholder value and we generally support management of companies in which the funds' assets are invested. Fidelity will vote on a case-by-case basis in contested director elections, taking into account factors such as management's track record and strategic plan for enhancing shareholder value; the long-term performance of the target company compared to its industry peers; the qualifications of the shareholder's and management's nominees; and other factors. Ultimately, Fidelity will vote for the outcome it believes has the best prospects for maximizing shareholder value over the long term.

C. Indemnification

Fidelity will generally vote in favor of charter and by-law amendments expanding the indemnification of directors and/or limiting their liability for breaches of care unless Fidelity is otherwise dissatisfied with the performance of management or the proposal is accompanied by Anti-Takeover Provisions.

D. Independent Chairperson

Fidelity will generally vote against shareholder proposals calling for or recommending the appointment of a non-executive or independent chairperson. However, Fidelity will consider voting for such proposals in limited cases if, based upon particular facts and circumstances, appointment of a non-executive or independent chairperson appears likely to further the interests of shareholders and to promote effective oversight of management by the board of directors.

E. Majority Voting in Director Elections

Fidelity will generally vote in favor of proposals calling for directors to be elected by an affirmative majority of votes cast in a board election, provided that the proposal allows for plurality voting standard in the case of contested elections (i.e., where there are more nominees than board seats). Fidelity may consider voting against such shareholder proposals where a company's board has adopted an alternative measure, such as a director resignation policy, that provides a meaningful alternative to the majority voting standard and appropriately addresses situations where an incumbent director fails to receive the support of a majority of the votes cast in an uncontested election.

F. Proxy Access

Fidelity will evaluate management and shareholder proposals to adopt proxy access on a case-by-case basis, but generally will vote in favor of proposals that include ownership thresholds of at least 3% (5% in the case of Small-Capitalization Companies); holding periods of at least three years; establish the number of directors that eligible shareholders may nominate as 20% of the board; and limit to 20 the number of shareholders that may form a nominating group.

IV. Compensation

A. Executive Compensation

1. Advisory votes on executive compensation (Say on Pay)

a. Fidelity will generally vote for proposals to ratify executive compensation unless such compensation appears misaligned with shareholder interests or otherwise problematic, taking into account:

(i) The actions taken by the board or compensation committee in the previous year, including whether the company repriced or exchanged outstanding stock options without shareholder approval; adopted or extended a Golden Parachute without shareholder approval; or adequately addressed concerns communicated by Fidelity in the process of discussing executive compensation;

(ii) The alignment of executive compensation and company performance relative to peers; and

(iii) The structure of the compensation program, including factors such as whether incentive plan metrics are appropriate, rigorous and transparent; whether the long-term element of the compensation program is evaluated over at least a three-year period; the sensitivity of pay to below median performance; the amount and nature of non-performance-based compensation; the justification and rationale behind paying discretionary bonuses; the use of stock ownership guidelines and amount of executive stock ownership; and how well elements of compensation are disclosed.

b. Fidelity will generally vote against proposals to ratify Golden Parachutes.

2. Advisory vote on frequency of Say on Pay votes

When presented with a frequency of Say on Pay vote, Fidelity will generally support holding an annual advisory vote on Say on Pay.

B. Equity compensation plans

Fidelity will generally vote against equity compensation plans or amendments to authorize additional shares under such plans if:

1. (a) The company's average three year burn rate is greater than 1.5% for a Large-Capitalization Company, 2.5% for a Small-Capitalization Company or 3.5% for a Micro-Capitalization Company; and (b) there were no circumstances specific to the company or the plans that lead Fidelity to conclude that the burn rate is acceptable.

2. In the case of stock option plans, (a) the offering price of options is less than 100% of fair market value on the date of grant, except that the offering price may be as low as 85% of fair market value if the discount is expressly granted in lieu of salary or cash bonus; (b) the plan's terms allow repricing of underwater options; or (c) the board/committee has repriced options outstanding under the plan in the past two years without shareholder approval.

3. The plan includes an Evergreen Provision.

4. The plan provides for the acceleration of vesting of equity compensation even though an actual change in control may not occur.

C. Equity Exchanges and Repricing

Fidelity will generally vote in favor of a management proposal to exchange, reprice or tender for cash, outstanding options if the proposed exchange, repricing, or tender offer is consistent with the interests of shareholders, taking into account such factors as:

1. Whether the proposal excludes senior management and directors;

2. Whether the exchange or repricing proposal is value neutral to shareholders based upon an acceptable pricing model;

3. The company's relative performance compared to other companies within the relevant industry or industries;

4. Economic and other conditions affecting the relevant industry or industries in which the company competes; and

5. Any other facts or circumstances relevant to determining whether an exchange or repricing proposal is consistent with the interests of shareholders.

D. Employee Stock Purchase Plans

Fidelity will generally vote in favor of employee stock purchase plans if the minimum stock purchase price is equal to or greater than 85% of the stock's fair market value and the plan constitutes a reasonable effort to encourage broad based participation in the company's equity. In the case of non-U.S. company stock purchase plans, Fidelity may permit a lower minimum stock purchase price equal to the prevailing "best practices" in the relevant non-U.S. market, provided that the minimum stock purchase price must be at least 75% of the stock's fair market value.

V. Anti-Takeover Provisions

Fidelity will generally vote against a proposal to adopt or approve the adoption of an Anti-Takeover Provision unless:

A. In the case of a Poison Pill, it either:

1. Includes the following features:

a. A Sunset Provision of no greater than five years;

b. Links to a business strategy that is expected to result in greater value for the shareholders;

c. Requires shareholder approval to be reinstated upon expiration or if amended;

d. Contains a mechanism to allow shareholders to consider a bona fide takeover offer for all outstanding shares without triggering the Poison Pill; and

e. Allows the Fidelity^® Funds to hold an aggregate position of up to 20% of a company's total voting securities and of any class of voting securities; or

2. Is crafted only for the purpose of protecting a specific tax benefit and after evaluating the proposal based on its likelihood to enhance long-term economic returns or maximize long-term shareholder value.

Fidelity will generally vote in favor of proposals to eliminate Anti-Takeover Provisions unless:

B. In the case of proposals regarding shareholders' rights to call special meetings, Fidelity generally will vote against each proposal if the threshold required to call a special meeting is less than 25% of the outstanding stock.

C. In the case of proposals regarding shareholders' right to act by written consent, Fidelity will generally vote against each proposal if it does not include appropriate mechanisms for implementation including, among other things, record date requests from at least 25% of the outstanding stockholders and consents must be solicited from all shareholders.

D. In the case of proposals regarding supermajority provisions, Fidelity may vote to support such a provision when Fidelity determines that it may protect minority shareholder interests in companies where there is a substantial or dominant shareholder.

VI. Capital Structure/Incorporation

A. Increases in Common Stock

Fidelity will generally vote against a provision to increase a company's authorized common stock if such increase will result in a total number of authorized shares greater than three times the current number of outstanding and scheduled to be issued shares, including stock options.

However, in the case of real estate investment trusts (REIT), Fidelity will generally vote against a provision to increase the REIT's authorized common stock if the increase will result in a total number of authorized shares up to five times the current number of outstanding and scheduled to be issued shares.

B. Reverse Stock Splits

Fidelity will generally vote in favor of reverse stock splits as long as the post-split authorized shares is no greater than three times the post-split number of outstanding and scheduled to be issued shares, including stock awards, or in the case of real estate investment trusts the number of post-split authorized shares is not greater than five times the post-split number of outstanding and scheduled to be issued shares.

C. Multi-Class Share Structures

Fidelity will generally vote in favor of proposals to recapitalize multi-class share structures into structures that provide equal voting rights for all shareholders, and will generally vote against proposals to introduce or increase classes of stock with differential voting rights. However, Fidelity will evaluate all such proposals in the context of their likelihood to enhance long-term economic returns or maximize long-term shareholder value.

D. Cumulative Voting Rights

Fidelity will generally vote against the introduction and in favor of the elimination of cumulative voting rights.

E. Acquisition or Business Combination Statutes

Fidelity will generally vote in favor of proposed amendments to a company's certificate of incorporation or by-laws that enable the company to opt out of the control shares acquisition or business combination statutes.

F. Incorporation or Reincorporation in Another State or Country

Fidelity will generally vote for management proposals calling for, or recommending that, a portfolio company reincorporate in another state or country if, on balance, the economic and corporate governance factors in the proposed jurisdiction appear reasonably likely to be better aligned with shareholder interests, taking into account the corporate laws of the current and proposed jurisdictions and any changes to the company's current and proposed governing documents. Fidelity will consider supporting such shareholder proposals in limited cases if, based upon particular facts and circumstances, remaining incorporated in the current jurisdiction appears misaligned with shareholder interests.

VII. Shares of Fidelity^® Funds, ETFs, or other non-Fidelity^® Mutual Funds and ETFs

A. When a Fidelity^® Fund invests in an underlying Fidelity^® Fund with public shareholders, an exchange traded fund (ETF), or non-affiliated fund, Fidelity will vote in the same proportion as all other voting shareholders of the underlying fund ("echo voting"). Fidelity may choose not to vote if "echo voting" is not operationally practical.

B. Certain Fidelity^® Funds may invest in shares of underlying Fidelity^® Funds that do not have public shareholders. For Fidelity^® Funds without public shareholders that are managed by Fidelity or an affiliate, Fidelity will generally vote in favor of proposals recommended by the underlying funds' Board of Trustees.

VIII. Other

A. Voting Process

Fidelity will generally vote in favor of proposals to adopt confidential voting and independent vote tabulation practices.

B. Environmental and Social Issues

Fidelity generally will vote in a manner consistent with management’s recommendation on shareholder proposals concerning environmental or social issues, as it generally believes that management and the board are in the best position to determine how to address these matters. In certain cases, however, Fidelity may support shareholder proposals that request additional disclosures from companies regarding environmental or social issues, where it believes that the proposed disclosures could provide meaningful information to the investment management process without unduly burdening the company.

For example, Fidelity may support shareholder proposals calling for reports on sustainability, renewable energy, and environmental impact issues. Fidelity also may support proposals on issues such as equal employment, and board and workforce diversity.

To view a fund's proxy voting record for the most recent 12-month period ended June 30, if applicable, visit www.fidelity.com/proxyvotingresults or visit the SEC's web site at www.sec.gov.

¹For purposes of these Guidelines, any reference to “Fidelity^® Fund” or “Fidelity^® Funds” includes fund(s) managed by Fidelity Management and Research Company as well as funds managed by SelectCo, LLC.

DISTRIBUTION SERVICES

The fund has entered into a distribution agreement with FDC, an affiliate of FIMM and FMR. The principal business address of FDC is 900 Salem Street, Smithfield, Rhode Island 02917. FDC is a broker-dealer registered under the Securities Exchange Act of 1934 and a member of the Financial Industry Regulatory Authority, Inc. The distribution agreement calls for FDC to use all reasonable efforts, consistent with its other business, to secure purchasers for shares of the fund, which are continuously offered at NAV. Promotional and administrative expenses in connection with the offer and sale of shares are paid by FIMM or FMR.

The Trustees have approved a Distribution and Service Plan with respect to shares of the fund (the Plan) pursuant to Rule 12b-1 under the 1940 Act (the Rule). The Rule provides in substance that a fund may not engage directly or indirectly in financing any activity that is primarily intended to result in the sale of shares of the fund except pursuant to a plan approved on behalf of the fund under the Rule. The Plan, as approved by the Trustees, allows shares of the fund, FIMM, and/or FMR to incur certain expenses that might be considered to constitute indirect payment by the fund of distribution expenses.

The Plan adopted for the fund is described in the prospectus.

Under the Plan, if the payment of management fees by the fund to FIMM is deemed to be indirect financing by the fund of the distribution of its shares, such payment is authorized by the Plan. The Plan specifically recognizes that FIMM or FMR may use its management fee revenue, including management fees paid to FIMM by the fund or fees paid to FMR by FIMM out of such management fees, as well as its past profits or its other resources, to pay FDC for expenses incurred in connection with providing services intended to result in the sale of shares of the fund and/or shareholder support services. In addition, the Plan provides that FIMM or FMR, directly or through FDC, may pay significant amounts to intermediaries that provide those services.

Prior to approving the Plan, the Trustees carefully considered all pertinent factors relating to the implementation of the Plan, and determined that there is a reasonable likelihood that the Plan will benefit the fund and its shareholders. In particular, the Trustees noted that the Plan does not authorize payments by shares of the fund other than those made to FIMM under its management contract with the fund. To the extent that the Plan gives FIMM, FMR, and FDC greater flexibility in connection with the distribution of shares, additional sales of shares or stabilization of cash flows may result. Furthermore, certain shareholder support services may be provided more effectively under the Plan by local entities with whom shareholders have other relationships.

FDC or an affiliate may compensate, or upon direction make payments for certain retirement plan expenses to intermediaries. A number of factors are considered in determining whether to pay these additional amounts. Such factors may include, without limitation, the level or type of services provided by the intermediary, the level or expected level of assets or sales of shares, and other factors. In addition to such payments, FDC or an affiliate may offer other incentives such as sponsorship of educational or client seminars relating to current products and issues, payments or reimbursements for travel and related expenses associated with due diligence trips that an intermediary may undertake in order to explore possible business relationships with affiliates of FDC, and/or payments of costs and expenses associated with attendance at seminars, including travel, lodging, entertainment, and meals. Certain of the payments described above may be significant to an intermediary. As permitted by SEC and Financial Industry Regulatory Authority rules and other applicable laws and regulations, FDC or an affiliate may pay or allow other incentives or payments to intermediaries.

FDC or an affiliate may also make payments to banks, broker-dealers and other service-providers (who may be affiliated with FDC) for distribution-related activities and/or shareholder services. If you have purchased shares of the fund through an investment professional, please speak with your investment professional to learn more about any payments his or her firm may receive from FIMM, FMR, FDC, and/or their affiliates, as well as fees and/or commissions the investment professional charges. You should also consult disclosures made by your investment professional at the time of purchase.

Any of the payments described in this section may represent a premium over payments made by other fund families. Investment professionals may have an added incentive to sell or recommend a fund over others offered by competing fund families, or retirement plan sponsors may take these payments into account when deciding whether to include a fund as a plan investment option.

FDC may also enter into agreements with securities dealers who will solicit purchases of Creation Units. Such securities dealers may also be Authorized Participants, DTC Participants, and or investor services organizations.

TRANSFER AND SERVICE AGENT AGREEMENTS

The fund has entered into a transfer agency and service agreement with State Street Bank and Trust Company (State Street), which is located at 1 Lincoln Street, Boston, Massachusetts, 02111. Under the terms of the agreement, State Street (or an agent, including an affiliate) acts as transfer agent and dividend and disbursing agent.

The fund has entered into a service agent agreement with FSC, an affiliate of FIMM (or an agent, including an affiliate), which is located at 245 Summer Street, Boston, Massachusetts, 02210. The fund has also entered into a securities lending administration agreement with FSC. Under the terms of the agreements, FSC (or an agent, including an affiliate) provides certain pricing and bookkeeping services for the fund. FSC has entered into a sub-administration agreement with State Street. Under the agreement, State Street (or an agent, including an affiliate) provides various fund accounting and fund administration services, including preparation of financial information for shareholder reports and tax services, for the fund.

For administering the fund's securities lending program, FSC is paid based on the number and duration of individual securities loans.

FIMM bears the cost of services under these agreements under the terms of its management contract with the fund.

SECURITIES LENDING

The securities lending agent, or the investment adviser (where the fund does not use a securities lending agent) monitors loan opportunities for the fund, negotiates the terms of the loans with borrowers, monitors the value of securities on loan and the value of the corresponding collateral, communicates with borrowers and the fund's custodian regarding marking to market the collateral, selects securities to be loaned and allocates those loan opportunities among lenders, and arranges for the return of the loaned securities upon the termination of the loan. Income and fees from securities lending activities will be included when the fund has completed its first fiscal year end.

The fund does not pay cash collateral management fees, separate indemnification fees, or other fees not reflected above.

DESCRIPTION OF THE TRUST

Trust Organization. Fidelity^® Low Duration Bond Factor ETF is a fund of Fidelity Merrimack Street Trust, an open-end management investment company created under an initial declaration of trust dated November 15, 2012. As of the date of this SAI, there are four funds offered in the trust: Fidelity^® Corporate Bond ETF, Fidelity^® Limited Term Bond ETF, Fidelity^® Low Duration Bond Factor ETF, and Fidelity^® Total Bond ETF. The Trustees are permitted to create additional funds in the trust and to create additional classes of the fund.

The assets of the trust received for the issue or sale of shares of each of its funds and all income, earnings, profits, and proceeds thereof, subject to the rights of creditors, are allocated to such fund, and constitute the underlying assets of such fund. The underlying assets of each fund in the trust shall be charged with the liabilities and expenses attributable to such fund. Any general expenses of the trust shall be allocated between or among any one or more of the funds.

Shareholder Liability. The trust is an entity commonly known as a "Massachusetts business trust." Under Massachusetts law, shareholders of such a trust may, under certain circumstances, be held personally liable for the obligations of the trust.

The Declaration of Trust contains an express disclaimer of shareholder liability for the debts, liabilities, obligations, and expenses of the trust or fund. The Declaration of Trust provides that the trust shall not have any claim against shareholders except for the payment of the purchase price of shares and requires that each agreement, obligation, or instrument entered into or executed by the trust or the Trustees relating to the trust or to a fund shall include a provision limiting the obligations created thereby to the trust or to one or more funds and its or their assets. The Declaration of Trust further provides that shareholders of a fund shall not have a claim on or right to any assets belonging to any other fund.

The Declaration of Trust provides for indemnification out of each fund's property of any shareholder or former shareholder held personally liable for the obligations of the fund solely by reason of his or her being or having been a shareholder and not because of his or her acts or omissions or for some other reason. The Declaration of Trust also provides that each fund shall, upon request, assume the defense of any claim made against any shareholder for any act or obligation of the fund and satisfy any judgment thereon. Thus, the risk of a shareholder incurring financial loss on account of shareholder liability is limited to circumstances in which a fund itself would be unable to meet its obligations. FIMM believes that, in view of the above, the risk of personal liability to shareholders is remote.

Voting Rights. Each fund's capital consists of shares of beneficial interest. Shareholders are entitled to one vote for each dollar of net asset value they own. The voting rights of shareholders can be changed only by a shareholder vote. Shares may be voted in the aggregate, by fund, and by class.

The shares have no preemptive or conversion rights. Shares are fully paid and nonassessable, except as set forth under the heading "Shareholder Liability" above.

The trust or a fund or a class may be terminated upon the sale of its assets to, or merger with, another open-end management investment company, series, or class thereof, or upon liquidation and distribution of its assets. The Trustees may reorganize, terminate, merge, or sell all or a portion of the assets of the trust or a fund or a class without prior shareholder approval. In the event of the dissolution or liquidation of the trust, shareholders of each of its funds are entitled to receive the underlying assets of such fund available for distribution. In the event of the dissolution or liquidation of a fund or a class, shareholders of that fund or that class are entitled to receive the underlying assets of the fund or class available for distribution.

Custodians. State Street Bank and Trust Company, 1 Lincoln Street, Boston, Massachusetts, is custodian of the assets of the fund. The custodian is responsible for the safekeeping of the fund's assets and the appointment of any subcustodian banks and clearing agencies. The Bank of New York Mellon and JPMorgan Chase Bank, each headquartered in New York, also may serve as special purpose custodians of certain assets in connection with repurchase agreement transactions. From time to time, subject to approval by a fund's Treasurer, the fund may enter into escrow arrangements with other banks if necessary to participate in certain investment offerings.

FMR, its officers and directors, its affiliated companies, Members of the Advisory Board (if any), and Members of the Board of Trustees may, from time to time, conduct transactions with various banks, including banks serving as custodians for certain funds advised by FMR or an affiliate. Transactions that have occurred to date include mortgages and personal and general business loans. In the judgment of the fund's adviser, the terms and conditions of those transactions were not influenced by existing or potential custodial or other fund relationships.

Independent Registered Public Accounting Firm. PricewaterhouseCoopers LLP, 101 Seaport Boulevard, Boston, Massachusetts, independent registered public accounting firm, audits financial statements for the fund and provides other audit, tax, and related services.

FUND HOLDINGS INFORMATION

The fund views holdings information as sensitive and limits its dissemination. The Board authorized FMR to establish and administer guidelines for the dissemination of fund holdings information, which may be amended at any time without prior notice. FMR's Disclosure Policy Committee (comprising executive officers of FMR) evaluates disclosure policy with the goal of serving the fund's best interests by striking an appropriate balance between providing information about the fund's portfolio and protecting the fund from potentially harmful disclosure. The Board reviews the administration and modification of these guidelines and receives reports from the fund's chief compliance officer periodically.

On each Business Day, before commencement of trading in shares on the CboeBZX, the fund will disclose on its website the identities and quantities of the fund's portfolio holdings that will form the basis for the fund's calculation of NAV at the end of the Business Day.

Daily portfolio composition files (PCFs) that identify a basket of specified securities that may overlap with the actual or expected portfolio holdings of the fund will be provided as frequently as daily to the fund's service providers to facilitate the provision of services to the fund and to certain other entities in connection with the dissemination of information necessary for transactions in Creation Units. Each business day prior to the opening of the CboeBZX, a PCF containing a list of the names and the required number of shares of each Deposit Security for the fund will be provided for dissemination through the facilities of the NSCC; through other fee-based services to NSCC members; subscribers to the fee-based services, including Authorized Participants; and to entities that publish and/or analyze such information in connection with the process of purchasing or redeeming Creation Units or trading fund shares in the secondary market. In addition to making PCFs available to the NSCC, the fund will disclose the PCF or portions thereof as frequently as daily on www.fidelity.com.

The fund may also from time to time provide or make available to the Board or third parties upon request specific fund level performance attribution information and statistics. Third parties may include fund shareholders or prospective fund shareholders, members of the press, consultants, and ratings and ranking organizations.

The Use of Holdings In Connection With Fund Operations. Material non-public holdings information may be provided as part of the activities associated with managing Fidelity^® funds to: entities which, by explicit agreement or by virtue of their respective duties to the fund, are required to maintain the confidentiality of the information disclosed; other parties if legally required; or persons FMR believes will not misuse the disclosed information. These entities, parties, and persons include, but are not limited to: the fund's trustees; the fund's manager, its sub-advisers, if any, and their affiliates whose access persons are subject to a code of ethics (including portfolio managers of affiliated funds of funds); contractors who are subject to a confidentiality agreement; the fund's auditors; the fund's custodians; proxy voting service providers; financial printers; pricing service vendors; broker-dealers in connection with the purchase or sale of securities or requests for price quotations or bids on one or more securities; securities lending agents; counsel to the fund or its Independent Trustees; regulatory authorities; stock exchanges and other listing organizations; parties to litigation; third parties in connection with a bankruptcy proceeding relating to a fund holding; and third parties who have submitted a standing request to a money market fund for daily holdings information. Non-public holdings information may also be provided to an issuer regarding the number or percentage of its shares that are owned by the fund and in connection with redemptions in kind.

Other Uses Of Holdings Information. In addition, the fund may provide material non-public holdings information to (i) third parties that calculate information derived from holdings for use by FMR or its affiliates, (ii) ratings and rankings organizations, and (iii) an investment adviser, trustee, or their agents to whom holdings are disclosed for due diligence purposes or in anticipation of a merger involving the fund. Each individual request is reviewed by the Disclosure Policy Committee which must find, in its sole discretion that, based on the specific facts and circumstances, the disclosure appears unlikely to be harmful to the fund. Entities receiving this information must have in place control mechanisms to reasonably ensure or otherwise agree that, (a) the holdings information will be kept confidential, (b) no employee shall use the information to effect trading or for their personal benefit, and (c) the nature and type of information that they, in turn, may disclose to third parties is limited. FMR relies primarily on the existence of non-disclosure agreements and/or control mechanisms when determining that disclosure is not likely to be harmful to the fund.

At this time, the entities receiving information described in the preceding paragraph are: Factset Research Systems Inc. (full or partial fund holdings daily, on the next business day); Standard & Poor's Ratings Services (full holdings weekly (generally as of the previous Friday), generally 5 business days thereafter); MSCI Inc. and certain affiliates (full or partial fund holdings daily, on the next business day); and Bloomberg, L.P. (full holdings daily, on the next business day).

FMR, its affiliates, or the fund will not enter into any arrangements with third parties from which they derive consideration for the disclosure of material non-public holdings information. If, in the future, such an arrangement is desired, prior Board approval would be sought and any such arrangements would be disclosed in the fund's SAI.

There can be no assurance that the fund's policies and procedures with respect to disclosure of fund portfolio holdings will prevent the misuse of such information by individuals and firms that receive such information.

APPENDIX

Any third-party marks that may appear above are the marks of their respective owners.


Charles S. Morrison	President of FMR (2016); President of SelectCo, LLC (2018) Director of SelectCo, LLC and FIMM.

Nancy Prior	President (2016) and Director of FIMM; Director of FMR U.K. (2016).

Adrien Deberghes	Executive Vice President of FIMM (2016).

Lisa Goulemas	Chief Operating Officer of FIMM (2016).

Marc R. Bryant	Senior Vice President, Secretary and Chief Legal Officer of FMR and FMRC; Secretary of FIMM and SelectCo; Chief Legal Officer of FMR H.K., FMR Japan (2016) and FMR U.K. (2016).

Michael Kearney	Treasurer of FIMM, FMR LLC, and Fidelity Distributors Corporation (2017); Assistant Treasurer of FMRC (2017)

Harris G. Komishane	Treasurer of FMR, FMRC, FIMM, Strategic Advisers LLC, SelectCo, LLC (2017), FMR H.K. (2017), and FMR Japan (2017).

Eric C. Green	Assistant Treasurer of FMR (2016), FMRC (2016), Strategic Advisers LLC, FIMM (2016) and SelectCo, LLC (2016); Executive Vice President, Tax and Assistant Treasurer of FMR LLC. Previously served as Assistant Treasurer of FIAM LLC (2016).

John J. Remondi	Director of FMR, FMRC, FRAC, and FIMM; Director and Executive Vice President of FMR LLC.
Peter D. Stahl	Secretary of FDC, FMR LLC, and Strategic Advisers LLC; Assistant Secretary of FMR, FMRC, FRAC, FIMM, and SelectCo.; Previously served as Secretary (2016), Assistant Secretary (2016) of FMR Japan, and Assistant Secretary of FMR U.K. (2016).

Linda J. Wondrack	Chief Compliance Officer of FMR, FMRC, FMR H.K., FMR Investment Management (U.K.) Limited, FMR Japan, FIMM, FIAM LLC, and SelectCo. Previously served as Chief Compliance Officer of FMR U.K. (2016) and Strategic Advisers LLC (2017).


Abigail P. Johnson	Chairman of the Board of certain Trusts; Chairman of the Board and Director of FMR and FMRC; President, Chief Executive Officer, Chairman and Director of FMR LLC.

Brian B. Hogan	President of FMRC; Director of Fidelity SelectCo, LLC, FMR U.K. (2016), and Strategic Advisers LLC (2018).

Paul Hession	Chief Operating Officer of FMRC (2016).
Peter S. Lynch	Vice Chairman and Director of FMR and FMRC and member of the Advisory Board of funds advised by FMR.

Marc R. Bryant	Senior Vice President, Secretary and Chief Legal Officer of FMR and FMRC; Secretary of FIMM and SelectCo; Chief Legal Officer of FMR H.K., FMR Japan (2016) and FMR U.K. (2016).

John J. Remondi	Director of FMR, FMRC, FRAC, and FIMM; Director and Executive Vice President of FMR LLC.

Harris G. Komishane	Treasurer of FMR, FMRC, FIMM, Strategic Advisers LLC, SelectCo, LLC (2017), FMR H.K. (2017), and FMR Japan (2017).

Michael Kearney	Treasurer of FIMM, FMR LLC, and Fidelity Distributors Corporation (2017); Assistant Treasurer of FMRC (2017)

Eric C. Green	Assistant Treasurer of FMR (2016), FMRC (2016), Strategic Advisers LLC, FIMM (2016) and SelectCo, LLC (2016); Executive Vice President, Tax and Assistant Treasurer of FMR LLC. Previously served as Assistant Treasurer of FIAM LLC (2016).

Peter D. Stahl	Secretary of FDC, FMR LLC, and Strategic Advisers LLC; Assistant Secretary of FMR, FMRC, FRAC, FIMM, and SelectCo.; Previously served as Secretary (2016), Assistant Secretary (2016) of FMR Japan, and Assistant Secretary of FMR U.K. (2016).

Kenneth B. Robins	Compliance Officer of FMR (2016) and FMRC (2016).

Linda J. Wondrack	Chief Compliance Officer of FMR, FMRC, FMR H.K., FMR Investment Management (U.K.) Limited, FMR Japan, FIMM, FIAM LLC, and SelectCo. Previously served as Chief Compliance Officer of FMR U.K. (2016) and Strategic Advisers LLC (2017).


Marc R. Bryant	Senior Vice President, Secretary and Chief Legal Officer of FMR and FMRC; Secretary of FIMM and SelectCo; Chief Legal Officer of FMR H.K., FMR Japan (2016) and FMR U.K. (2016).

Sharon Yau Lecornu	Chief Executive Officer (2016), Executive Director, Director of Investment Services – Asia, and Director.

William Francis Shanley III	Director of FMR Japan (2016) and FMR H.K. (2016).

Christopher J. Seabolt	Director of FMR H.K. (2016) and FMR U.K. (2017).

Adrian James Tyerman	Compliance Officer FMR H.K. Anti-Money Laundering Compliance Officer of FMR Investment Management (U.K.) Limited (2016).

Harris G. Komishane	Treasurer of FMR, FMRC, FIMM, Strategic Advisers LLC, SelectCo, LLC (2017), FMR H.K. (2017), and FMR Japan (2017).

Linda J. Wondrack	Chief Compliance Officer of FMR, FMRC, FMR H.K., FMR Investment Management (U.K.) Limited, FMR Japan, FIMM, FIAM LLC, and SelectCo, LLC. Previously served as Chief Compliance Officer of FMR U.K. (2016) and Strategic Advisers LLC (2017).



Timothy M. Cohen	Director of FMR Japan (2016). Previously served as Chief Investment Officer – Equity of FMR U.K. (2016).

Joseph DeSantis	Director of FMR Japan (2016).

Rieko Hirai	Director of FMR Japan (2016).

Kirk Roland Neureiter	Director of FMR Japan (2016).

William Francis Shanley III	Director of FMR Japan (2016) and FMR H.K. (2016).

Marc R. Bryant	Senior Vice President, Secretary and Chief Legal Officer of FMR and FMRC; Secretary of FIMM and SelectCo; Chief Legal Officer of FMR H.K., FMR Japan (2016) and FMR U.K. (2016).

Harris G. Komishane	Treasurer of FMR, FMRC, FIMM, Strategic Advisers LLC, SelectCo, LLC (2017), FMR H.K. (2017), and FMR Japan (2017).

Koichi Iwabuchi	Compliance Officer of FMR Japan (2017).

Linda J. Wondrack	Chief Compliance Officer of FMR, FMRC, FMR H.K., FMR Investment Management (U.K.) Limited, FMR Japan, FIMM, FIAM LLC, and SelectCo, LLC. Previously served as Chief Compliance Officer of FMR U.K. (2016) and Strategic Advisers LLC (2017).

Yojiro Sugimoto	Statutory Auditor of FMR Japan (2016).


Mark D. Flaherty	Director FMR Investment Management (U.K.) Limited. Previously served as Director of FMR U.K. (2016) served as President, Chief Executive Officer, Chief Investment Officer-Fixed-Income/U.K., and Managing Director, Research of FMR U.K. (2016).

Brian B. Hogan	President of FMRC; Director of Fidelity SelectCo, LLC, FMR U.K. (2016), and Strategic Advisers LLC (2018).

Markus K. Eichacker	Director of FMR U.K. (2017).

Paula Kienert	Director of FMR U.K. (2016).

Christopher J. Seabolt	Director of FMR H.K. (2016) and FMR U.K. (2017).

Nancy Prior	President (2016) and Director of FIMM; Director of FMR U.K. (2016).

Marc R. Bryant	Senior Vice President, Secretary and Chief Legal Officer of FMR and FMRC; Secretary of FIMM and SelectCo; Chief Legal Officer of FMR H.K., FMR Japan (2016) and FMR U.K. (2016).

Adrian James Tyerman	Compliance Officer FMR H.K. Anti-Money Laundering Compliance Officer of FMR Investment Management (U.K.) Limited (2016).

Linda J. Wondrack	Chief Compliance Officer of FMR, FMRC, FMR H.K., FMR Investment Management (U.K.) Limited, FMR Japan, FIMM, FIAM LLC, and SelectCo. Previously served as Chief Compliance Officer of FMR U.K. (2016) and Strategic Advisers LLC (2017).

Mark Sullivan	Director of FMR Investment Management (U.K.) Limited (2018).


(b)
Name and Principal	Positions and Offices	Positions and Offices
Business Address*	with Underwriter	with Fund
Judy A. Marlinski	President (2017)	None
Robert F. Bachman	Executive Vice President	None
Eric C. Green	Assistant Treasurer (2016)	None
Natalie Kavanaugh	Chief Legal Officer	None
Jason J. Linde	Chief Compliance Officer (2016)	None
Michael Lyons	Chief Financial Officer	None
Brian C. McLain	Assistant Secretary	None
Judy A. Marlinski	Director	None
Timothy Mulcahy	Director (2017)	None
Matthew DePiero	Director (2018)	None
Michael Kearney	Treasurer (2017)	None
Peter D. Stahl	Secretary	None


	By	/s/Laura M. Del Prato
\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|		Laura M. Del Prato, President


(Signature)		(Title)	(Date)

/s/Laura M. Del Prato		President and Treasurer	June 8, 2018
Laura M. Del Prato		(Principal Executive Officer)

/s/Howard J. Galligan III		Chief Financial Officer	June 8, 2018
Howard J. Galligan III		(Principal Financial Officer)

/s/Abigail P. Johnson	^†	Trustee	June 8, 2018
Abigail P. Johnson

/s/Elizabeth S. Acton	*	Trustee	June 8, 2018
Elizabeth S. Acton

/s/John Engler	*	Trustee	June 8, 2018
John Engler

/s/Albert R. Gamper, Jr.	*	Trustee	June 8, 2018
Albert R. Gamper, Jr.

/s/Robert F. Gartland	*	Trustee	June 8, 2018
Robert F. Gartland

/s/Arthur E. Johnson	*	Trustee	June 8, 2018
Arthur E. Johnson

/s/Michael E. Kenneally	*	Trustee	June 8, 2018
Michael E. Kenneally

/s/Marie L. Knowles	*	Trustee	June 8, 2018
Marie L. Knowles

/s/Mark A. Murray	*	Trustee	June 8, 2018
Mark A. Murray

/s/Jennifer Toolin McAuliffe	*	Trustee	June 8, 2018
Jennifer Toolin McAuliffe


^†	^By:	/s/Marc R. Bryant
		Marc R. Bryant, pursuant to a power of attorney dated December 16, 2015 and filed herewith.
*	By:	/s/Megan C. Johnson
		Megan C. Johnson, pursuant to a power of attorney dated September 1, 2017 and filed herewith.


	Fidelity Merrimack Street Trust