N-CSRS

UNITED STATES 

SECURITIES AND EXCHANGE COMMISSION 

Washington, D.C. 20549 

FORM N-CSR 

CERTIFIED SHAREHOLDER REPORT OF REGISTERED 

MANAGEMENT INVESTMENT COMPANIES 

Investment Company Act File Number: 811-5833 

T. Rowe Price Institutional International Funds, Inc. 

(Exact name of registrant as specified in charter) 

100 East Pratt Street, Baltimore, MD 21202 

(Address of principal executive offices) 

David Oestreicher 

 100 East Pratt Street, Baltimore, MD 21202 

 (Name and address of agent for service) 

Registrant’s telephone number, including area code: (410) 345-2000 

Date of fiscal year end: October 31 

Date of reporting period: April 30, 2008 

Item 1: Report to Shareholders

 Institutional Global Equity Fund April 30, 2008 

The views and opinions in this report were current as of April 30, 2008. They are not guarantees of performance or investment results and should not be taken as investment advice. Investment decisions reflect a variety of factors, and the managers reserve the right to change their views about individual stocks, sectors, and the markets at any time. As a result, the views expressed should not be relied upon as a forecast of the fund’s future investment intent. The report is certified under the Sarbanes-Oxley Act, which requires mutual funds and other public companies to affirm that, to the best of their knowledge, the information in their financial reports is fairly and accurately stated in all material respects.

Manager’s Letter
T. Rowe Price Institutional Global Equity Fund

Dear Investor

While global stock markets were down over the past six months, they began to rally in late March and gained strength in April amid sentiment that the global credit crisis may be stabilizing. The U.S. Federal Reserve cut interest rates repeatedly throughout the period, but the central bank also hinted at a pause in its cycle of rate reductions in order to counter inflationary pressures. U.S. equities were weak, but the strength of the euro versus the dollar trimmed losses in Europe for U.S. investors.

Your fund lost ground during the past six months but surpassed the returns of the MSCI All Country World Index and the Lipper Global Large-Cap Growth Funds Average. Since its inception on June 30, 2006, the fund’s returns have been strong and well ahead of the results for the MSCI index. Generally good stock selection was responsible for the fund’s relatively strong performance during the period.

Highlights 

• While global stock markets were down over the past six months, they rallied from late March through April amid optimism that the global credit crisis could be stabilizing.

• The fund surpassed the returns of its major benchmarks thanks to beneficial stock selection.

• Our major holdings in energy, financials, materials, and other sectors drove the fund’s good relative performance during the period, while stock selection in the telecom group was a drag on results.

• We expect volatility to continue, but we believe our focus on growth stocks with the strongest prospects should continue to provide attractive results.

Market Review

The broad retreat from risky asset classes, triggered by the global credit crunch, continued during the past six months. Volatility, spurred on by spreading U.S. subprime mortgage problems and a weak U.S. economy, dominated global markets over the period. U.S. stocks fell amid concerns that rising oil prices, the residential real estate recession, and continuing credit market turmoil would lead to a significant, broad-based economic slowdown. At the beginning of the period, the broad S&P 500 Index suffered its first correction—defined as a drop of 10% or more—in about five years.

Japan also lost ground, but less than other regions did. The Bank of Japan said fallout from the slowing U.S. economy and problems associated with the subprime mortgage meltdown are likely to reduce Japan’s 2008 growth rate to less than 2%. In addition, the yen hit a two-and-a-half-year high against the dollar. Japanese equities suffered significantly in March, with exporters hurt by the strength of the yen and few positive signs for the domestic economy.

Emerging markets registered the worst returns and endured a stormy start to the year, pummeled by the credit crisis in the U.S., the general loss of liquidity, and the subsequent flight to quality. The market has been somewhat skittish, with investors quick to act on any bad news or negative sentiment.

European stock markets took their cue from the credit markets and were marked down accordingly. Tightened liquidity continues to be the major story within the region as the interbank market has all but dried up. The European Central Bank (ECB) and Bank of England injected substantial sums of money into the financial system. So far, the ECB has declined to reduce interest rates because of concerns about inflation and a reasonably optimistic outlook for economic growth down the road. Throughout the global markets, the strongest sector was energy, while financials, information technology, and consumer discretionary were the weakest performers.

Portfolio Performance and Strategy

Our stock selection during the past six months was primarily responsible for the fund’s strong relative performance. In energy, coal producer CONSOL Energy in the U.S. benefited from investor optimism regarding reductions in supply, higher oil prices, and increased demand in Asia. The company signed some large contracts that are expected to boost results through 2008 and 2009. First-quarter earnings at another energy holding, Arch Coal, nearly doubled from the comparable period last year. (Please refer to the fund’s portfolio of investments for a detailed list of holdings and the amount each represents in the portfolio.)

Our financial holdings also boosted the fund’s relative performance. Brazil’s Banco Itau did well against the backdrop of a generally robust Brazilian market. Brazil’s economy is strong following rate cuts that put interest rates at their lowest level in years. Another financial position, Oman’s BankMuscat, enjoyed good growth throughout the Middle East.

In addition, our stock selection in the materials sector proved beneficial to relative results. The U.K.’s Rio Tinto, the world’s second-largest producer of iron ore, appreciated sharply as a result of strong demand for global commodities and an increase in steel price estimates by analysts. It became the target of a bid proposal made by another portfolio holding, BHP Billiton.

All was not rosy despite the fund’s relatively decent performance versus the benchmarks. U.S. telecom company American Tower was weak as the sector in general has been under pressure, with fixed-line companies struggling with increasing competition and extended wireless growth. Other holdings that held back results included employment services company Monster Worldwide, which is sensitive to swings in the economy. We were also underweight in the buoyant consumer staples area.

As far as absolute performance is concerned, our top three contributors were Rio Tinto, CONSOL Energy, and homebuilder D.R. Horton, which rebounded when interest rates came down. Laggards included TomTom, the Dutch navigational equipment company whose sales growth in its core European market has slowed due to rising competition, U.S. tech company Marvell Technology Group, and Monster Worldwide.

We sold shares of France’s Schneider Electric during the period; the company’s stock valuation appears reasonable, but we believe a lack of certainty about the firm’s prospects could dampen near-term performance. We sold some Rio Tinto on strength in the stock, and we eliminated Yahoo! because of concerns about Microsoft’s final bid price for the company; at the same time, we increased our position in Google and added Amazon.com. Google has been expanding globally, gaining market share and scale at a rate substantially above the competition. We added to France’s Alcatel-Lucent since the merged entity appears to have significant synergies in both research and development and sales that have yet to be reflected in the company’s stock price. In addition, we bought shares of mining company Xstrata, which has grown through acquisitions and may continue to be involved in industry consolidation. The firm enjoys a good mix of commodities and has an impressive growth pipeline.

Investment Strategy and Positioning

Concerning our investment strategy, we have preferred banks in emerging markets that are enjoying strong loan growth generated by a combination of burgeoning consumer and commercial demand and government deregulation that is making mortgages and consumer loans more widely available in many markets. These banks have been largely immune to the credit crisis that has plagued the major U.S. and European banks in recent months.

We are selectively looking for value during this period of turmoil, and we are focusing on businesses that have strong long-term earnings potential and leading market positions. We continue to take notice of the growth of mobile communication in both emerging markets (increased penetration) and North America (wireless towers). Emerging markets’ wireless companies have been benefiting from low penetration rates and rational competition. There are also opportunities in developed markets, especially in the wireless tower companies due to high barriers to entry, pricing power, fixed costs, and the ability to support high amounts of financial leverage. Diversified telecoms recently have performed badly after weak results from some companies. We will be looking to increase positions in the best companies with a competitive advantage, trading at attractive valuations.

Within energy, we are emphasizing U.S.-based energy and equipment firms. The competitive advantages of scale, technology, and diversification allow them to have a significant global presence as the challenges of finding new sources of oil and gas lead to more complex exploration and production projects. In particular, we are seeking base commodity companies as supply constraints should lead to higher earnings. Carbon-based fuel (coal, gas, oil) companies are always in demand and are, therefore, defensive investments in turbulent markets.

Consumer discretionary and consumer staples are sometimes grouped together as one consumer sector. In aggregate, we are neutral in staples, offsetting an overweight in consumer discretionary stocks. We will be focusing primarily on U.S. nonretail exporters in this sector.

Investment Outlook

The global credit crisis will likely slow world growth for the rest of 2008 as its effects ripple throughout the wider economy. However, the divergence between the economies in the developed world and those in emerging markets should continue. The U.S. economy is likely to remain fragile, weakening Europe and Japan. Since developed countries account for about three-quarters of the world’s GDP, the global impact will be significant. It is difficult to forecast corporate earnings given the slowdown in economic growth, although valuations in some areas appear to be discounting all but the direst scenarios.

The economic growth picture for emerging markets is brighter, albeit tempered by rising inflation in many countries. While exports to developed countries are likely to wane, domestic demand in emerging economies has expanded as savings rates have peaked, leading to wealth creation reflected in overall economic growth. Many emerging market governments have boosted public spending on infrastructure, providing a sizable injection of capital. That said, a more selective approach to investing within emerging markets is required in this environment as price regulations, particularly in China, have been instituted in key industries to curb inflationary pressures. We have maintained the portfolio’s exposure to emerging markets during this period, with a focus on durable growers, primarily in the wireless telecommunications and banking industries.

Global stock market volatility is likely to prove more extended than usual, as the magnitude and duration of the slowdown in developed markets remains unclear. Liquidity has been drying up, and investors will maintain a lower risk profile over the medium term until data suggest that economic growth trends have become more positive. In this difficult environment, we believe our focus on solid growth companies with good potential should continue to provide attractive results for investors in coming months.

Respectfully submitted,

Robert N. Gensler
Chairman of the fund’s Investment Advisory Committee

May 16, 2008

The committee chairman has day-to-day responsibility for managing the portfolio and works with committee members in developing and executing the fund’s investment program.

Risks of International Investing

Funds that invest overseas generally carry more risk than funds that invest strictly in U.S. assets. Funds investing in a single country or in a limited geographic region tend to be riskier than more diversified funds. Risks can result from varying stages of economic and political development; differing regulatory environments, trading days, and accounting standards; and higher transaction costs of non-U.S. markets. Non-U.S. investments are also subject to currency risk, or a decline in the value of a foreign currency versus the U.S. dollar, which reduces the dollar value of securities denominated in that currency.

Glossary

Gross domestic product (GDP): The total market value of all goods and services produced in a country in a given year.

Lipper averages: The averages of available mutual fund performance returns for specified periods in defined categories as tracked by Lipper Inc.

MSCI All Country World Index: A capitalization-weighted index of stocks from developed and emerging markets worldwide.

Price/earnings (P/E) ratio: Calculated by dividing a stock’s market value per share by the company’s earnings per share for the past 12 months or by expected earnings for the coming year.

Portfolio Highlights

Performance and Expenses
T. Rowe Price Institutional Global Equity Fund

Performance Comparison 

This chart shows the value of a hypothetical $1 million investment in the fund over the past 10 fiscal year periods or since inception (for funds lacking 10-year records). The result is compared with benchmarks, which may include a broad-based market index and a peer group average or index. Market indexes do not include expenses, which are deducted from fund returns as well as mutual fund averages and indexes.

This table shows how the fund would have performed each year if its actual (or cumulative) returns for the periods shown had been earned at a constant rate.

Fund Expense Example

As a mutual fund shareholder, you may incur two types of costs: (1) transaction costs, such as redemption fees or sales loads, and (2) ongoing costs, including management fees, distribution and service (12b-1) fees, and other fund expenses. The following example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the most recent six-month period and held for the entire period.

Actual Expenses
The first line of the following table (“Actual”) provides information about actual account values and actual expenses. You may use the information in this line, together with your account balance, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading “Expenses Paid During Period” to estimate the expenses you paid on your account during this period.

Hypothetical Example for Comparison Purposes
The information on the second line of the table (“Hypothetical”) is based on hypothetical account values and expenses derived from the fund’s actual expense ratio and an assumed 5% per year rate of return before expenses (not the fund’s actual return). You may compare the ongoing costs of investing in the fund with other funds by contrasting this 5% hypothetical example and the 5% hypothetical examples that appear in the shareholder reports of the other funds. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period.

You should also be aware that the expenses shown in the table highlight only your ongoing costs and do not reflect any transaction costs, such as redemption fees or sales loads. Therefore, the second line of the table is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. To the extent a fund charges transaction costs, however, the total cost of owning that fund is higher.

Financial Highlights
T. Rowe Price Institutional Global Equity Fund
(Unaudited)

The accompanying notes are an integral part of these financial statements.

Portfolio of Investments ^‡
T. Rowe Price Institutional Global Equity Fund
April 30, 2008 (Unaudited)

The accompanying notes are an integral part of these financial statements.

Statement of Assets and Liabilities
T. Rowe Price Institutional Global Equity Fund
April 30, 2008 (Unaudited)
($000s, except shares and per share amounts)

The accompanying notes are an integral part of these financial statements.

Statement of Operations
T. Rowe Price Institutional Global Equity Fund
(Unaudited)
($000s)

The accompanying notes are an integral part of these financial statements.

Statement of Changes in Net Assets
T. Rowe Price Institutional Global Equity Fund
(Unaudited)
($000s)

The accompanying notes are an integral part of these financial statements.

Notes to Financial Statements
T. Rowe Price Institutional Global Equity Fund
April 30, 2008 (Unaudited)

T. Rowe Price Institutional International Funds, Inc. (the corporation), is registered under the Investment Company Act of 1940 (the 1940 Act). The Institutional Global Equity Fund (the fund), a diversified, open-end management investment company, is one portfolio established by the corporation. The fund commenced operations on June 30, 2006. The fund seeks long-term growth of capital through investments primarily in the common stocks of established companies throughout the world, including the U.S.

NOTE 1 - SIGNIFICANT ACCOUNTING POLICIES

Basis of Preparation The accompanying financial statements were prepared in accordance with accounting principles generally accepted in the United States of America, which require the use of estimates made by fund management. Fund management believes that estimates and security valuations are appropriate; however, actual results may differ from those estimates, and the security valuations reflected in the financial statements may differ from the value the fund ultimately realizes upon sale of the securities.

Investment Transactions, Investment Income, and Distributions Income and expenses are recorded on the accrual basis. Dividends received from mutual fund investments are reflected as dividend income; capital gain distributions are reflected as realized gain/loss. Dividend income and capital gain distributions are recorded on the ex-dividend date. Income tax-related interest and penalties, if incurred, would be recorded as income tax expense. Investment transactions are accounted for on the trade date. Realized gains and losses are reported on the identified cost basis. Distributions to shareholders are recorded on the ex-dividend date. Income distributions are declared and paid on an annual basis. Capital gain distributions, if any, are declared and paid by the fund, typically on an annual basis.

Currency Translation Assets, including investments, and liabilities denominated in foreign currencies are translated into U.S. dollar values each day at the prevailing exchange rate, using the mean of the bid and asked prices of such currencies against U.S. dollars as quoted by a major bank. Purchases and sales of securities, income, and expenses are translated into U.S. dollars at the prevailing exchange rate on the date of the transaction. The effect of changes in foreign currency exchange rates on realized and unrealized security gains and losses is reflected as a component of security gains and losses.

Credits The fund earns credits on temporarily uninvested cash balances at the custodian that reduce the fund’s custody charges. Custody expense in the accompanying financial statements is presented before reduction for credits.

Redemption Fees A 2% fee is assessed on redemptions of fund shares held for 90 days to deter short-term trading and to protect the interests of long-term shareholders. Redemption fees are withheld from proceeds that shareholders receive from the sale or exchange of fund shares. The fees are paid to the fund, and are recorded as an increase to paid-in capital. The fees may cause the redemption price per share to differ from the net asset value per share.

New Accounting Pronouncements Effective November 1, 2007, the fund adopted Financial Accounting Standards Board (FASB) Interpretation No. 48 (FIN 48), Accounting for Uncertainty in Income Taxes, a clarification of FASB Statement No. 109, Accounting for Income Taxes. FIN 48 establishes financial accounting and disclosure requirements for recognition and measurement of tax positions taken or expected to be taken on an income tax return. The adoption of FIN 48 had no impact on the fund’s net assets or results of operations.

In September 2006, the Financial Accounting Standards Board (FASB) released Statement of Financial Accounting Standards No. 157 (FAS 157), Fair Value Measurements. FAS 157 defines fair value, establishes the framework for measuring fair value, and expands the disclosure of fair value measurements in the financial statements. It is effective for the fund’s fiscal year beginning November 1, 2008. Management expects adoption of FAS 157 will have no material impact on the fund’s net assets or results of operations.

NOTE 2 - VALUATION

The fund values its investments and computes its net asset value per share at the close of the New York Stock Exchange (NYSE), normally 4 p.m. ET, each day that the NYSE is open for business.

Equity securities listed or regularly traded on a securities exchange or in the over-the-counter (OTC) market are valued at the last quoted sale price or, for certain markets, the official closing price at the time the valuations are made, except for OTC Bulletin Board securities, which are valued at the mean of the latest bid and asked prices. A security that is listed or traded on more than one exchange is valued at the quotation on the exchange determined to be the primary market for such security. Listed securities not traded on a particular day are valued at the mean of the latest bid and asked prices for domestic securities and the last quoted sale price for international securities.

Investments in mutual funds are valued at the mutual fund’s closing net asset value per share on the day of valuation.

Other investments, including restricted securities, and those for which the above valuation procedures are inappropriate or are deemed not to reflect fair value are stated at fair value as determined in good faith by the T. Rowe Price Valuation Committee, established by the fund’s Board of Directors.

For valuation purposes, the last quoted prices of non-U.S. equity securities may be adjusted under the circumstances described below. If the fund determines that developments between the close of a foreign market and the close of the NYSE will, in its judgment, materially affect the value of some or all of its portfolio securities, the fund will adjust the previous closing prices to reflect what it believes to be the fair value of the securities as of the close of the NYSE. In deciding whether it is necessary to adjust closing prices to reflect fair value, the fund reviews a variety of factors, including developments in foreign markets, the performance of U.S. securities markets, and the performance of instruments trading in U.S. markets that represent foreign securities and baskets of foreign securities. A fund may also fair value securities in other situations, such as when a particular foreign market is closed but the fund is open. The fund uses outside pricing services to provide it with closing prices and information to evaluate and/or adjust those prices. The fund cannot predict how often it will use closing prices and how often it will determine it necessary to adjust those prices to reflect fair value. As a means of evaluating its security valuation process, the fund routinely compares closing prices, the next day’s opening prices in the same markets, and adjusted prices.

NOTE 3 - INVESTMENT TRANSACTIONS

Consistent with its investment objective, the fund engages in the following practices to manage exposure to certain risks or to enhance performance. The investment objective, policies, program, and risk factors of the fund are described more fully in the fund’s prospectus and Statement of Additional Information.

Emerging Markets At April 30, 2008, approximately 31% of the fund’s net assets were invested, directly or through its investments in T. Rowe Price institutional funds, in securities of companies located in emerging markets or denominated in or linked to the currencies of emerging market countries. Future economic or political developments could adversely affect the liquidity or value, or both, of such securities.

Restricted Securities The fund may invest in securities that are subject to legal or contractual restrictions on resale. Prompt sale of such securities at an acceptable price may be difficult and may involve substantial delays and additional costs.

Other Purchases and sales of portfolio securities, other than short-term securities, aggregated $103,309,000 and $30,292,000, respectively, for the six months ended April 30, 2008.

NOTE 4 - FEDERAL INCOME TAXES

No provision for federal income taxes is required since the fund intends to continue to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code and distribute to shareholders all of its taxable income and gains. Federal income tax regulations differ from generally accepted accounting principles; therefore, distributions determined in accordance with tax regulations may differ in amount or character from net investment income and realized gains for financial reporting purposes. Financial reporting records are adjusted for permanent book/tax differences to reflect tax character. Financial records are not adjusted for temporary differences. The amount and character of tax-basis distributions and composition of net assets are finalized at fiscal year-end; accordingly, tax-basis balances have not been determined as of April 30, 2008.

At April 30, 2008, the cost of investments for federal income tax purposes was $81,322,000. Net unrealized gain aggregated $1,583,000 at period-end, of which $4,317,000 related to appreciated investments and $2,734,000 related to depreciated investments.

NOTE 5 - FOREIGN TAXES

The fund is subject to foreign income taxes imposed by certain countries in which it invests. Additionally, capital gains realized by the fund upon disposition of securities issued in or by certain foreign countries are subject to capital gains tax imposed by those countries. All taxes are computed in accordance with the applicable foreign tax law, and, to the extent permitted, capital losses are used to offset capital gains. Tax expense attributable to income is accrued by the fund as a reduction of income. Current and deferred tax expense attributable to net capital gains is reflected as a component of realized and/or change in unrealized gain/loss on securities in the accompanying financial statements. At April 30, 2008, the fund had no deferred tax liability attributable to foreign securities and $69,000 of foreign capital loss carryforwards, including $69,000 that expire in 2016.

NOTE 6 - RELATED PARTY TRANSACTIONS

The fund is managed by T. Rowe Price International, Inc. (the manager), a wholly owned subsidiary of T. Rowe Price Associates, Inc. (Price Associates), which is wholly owned by T. Rowe Price Group, Inc. The investment management agreement between the fund and the manager provides for an annual investment management fee equal to 0.65% of the fund’s average daily net assets. The fee is computed daily and paid monthly.

The fund is also subject to a contractual expense limitation through February 28, 2009. During the limitation period, the manager is required to waive its management fee and reimburse the fund for any expenses, excluding interest, taxes, brokerage commissions, and extraordinary expenses, that would otherwise cause the fund’s ratio of annualized total expenses to average net assets (expense ratio) to exceed its expense limitation of 0.75%. For a period of three years after the date of any reimbursement or waiver, the fund is required to repay the manager for expenses previously reimbursed and management fees waived to the extent its net assets have grown or expenses have declined sufficiently to allow repayment without causing the fund’s expense ratio to exceed its expense limitation. Pursuant to this agreement, management fees in the amount of $78,000 were waived and expenses in the amount of $22,000 were reimbursed by the manager during the six months ended April 30, 2008. Including these amounts, management fees waived and expenses previously reimbursed by the manager in the amount of $406,000 remain subject to repayment at April 30, 2008.

In addition, the fund has entered into service agreements with Price Associates and a wholly owned subsidiary of Price Associates (collectively, Price). Price Associates computes the daily share price and provides certain other administrative services to the fund. T. Rowe Price Services, Inc., provides shareholder and administrative services in its capacity as the fund’s transfer and dividend disbursing agent. For the six months ended April 30, 2008, expenses incurred pursuant to these service agreements were $67,000 for Price Associates. The total amount payable at period-end pursuant to these service agreements is reflected as Due to Affiliates in the accompanying financial statements.

The fund may invest in the T. Rowe Price Reserve Investment Fund and the T. Rowe Price Government Reserve Investment Fund (collectively, the T. Rowe Price Reserve Investment Funds), open-end management investment companies managed by Price Associates and considered affiliates of the fund. The T. Rowe Price Reserve Investment Funds are offered as cash management options to mutual funds, trusts, and other accounts managed by Price Associates and/or its affiliates and are not available for direct purchase by members of the public. The T. Rowe Price Reserve Investment Funds pay no investment management fees.

As of April 30, 2008, T. Rowe Price Group, Inc., and/or its wholly owned subsidiaries owned 205,470 shares of the fund, representing 3% of the fund’s net assets.

Information on Proxy Voting Policies, Procedures, and Records 

A description of the policies and procedures used by T. Rowe Price funds and portfolios to determine how to vote proxies relating to portfolio securities is available in each fund’s Statement of Additional Information, which you may request by calling 1-800-225-5132 or by accessing the SEC’s Web site, www.sec.gov. The description of our proxy voting policies and procedures is also available on our Web site, www.troweprice.com. To access it, click on the words “Company Info” at the top of our homepage for individual investors. Then, in the window that appears, click on the “Proxy Voting Policy” navigation button in the top left corner.

Each fund’s most recent annual proxy voting record is available on our Web site and through the SEC’s Web site. To access it through our Web site, follow the directions above, then click on the words “Proxy Voting Record” at the bottom of the Proxy Voting Policy page.

How to Obtain Quarterly Portfolio Holdings 

The fund files a complete schedule of portfolio holdings with the Securities and Exchange Commission for the first and third quarters of each fiscal year on Form N-Q. The fund’s Form N-Q is available electronically on the SEC’s Web site (www.sec.gov); hard copies may be reviewed and copied at the SEC’s Public Reference Room, 450 Fifth St. N.W., Washington, DC 20549. For more information on the Public Reference Room, call 1-800-SEC-0330.

Approval of Investment Management Agreement

On March 4, 2008, the fund’s Board of Directors (Board) unanimously approved the investment advisory contract (Contract) between the fund and its investment manager, T. Rowe Price International, Inc. (Manager). The Board considered a variety of factors in connection with its review of the Contract, also taking into account information provided by the Manager during the course of the year, as discussed below:

Services Provided by the Manager
The Board considered the nature, quality, and extent of the services provided to the fund by the Manager. These services included, but were not limited to, management of the fund’s portfolio and a variety of activities related to portfolio management. The Board also reviewed the background and experience of the Manager’s senior management team and investment personnel involved in the management of the fund. The Board concluded that it was satisfied with the nature, quality, and extent of the services provided by the Manager.

Investment Performance of the Fund
The Board reviewed the fund’s total returns over the one-year and since-inception periods and compared these returns with a wide variety of previously agreed upon comparable performance measures and market data, including those supplied by Lipper, an independent provider of mutual fund data. On the basis of this evaluation and the Board’s ongoing review of investment results, the Board concluded that the fund’s performance was satisfactory.

Costs, Benefits, Profits, and Economies of Scale
The Board reviewed detailed information regarding the revenues received by the Manager under the Contract and other benefits that the Manager (and its affiliates) may have realized from its relationship with the fund, including research received under “soft dollar” agreements. The Board noted that soft dollars were not used to pay for third-party, non-broker research. The Board also received information on the estimated costs incurred and profits realized by the Manager and its affiliates from advising T. Rowe Price mutual funds, as well as estimates of the gross profits realized from managing the fund in particular. The Board concluded that the Manager’s profits were reasonable in light of the services provided to the fund. In this regard, the Board noted that a portion of the advisory fees were being waived. The Board also considered the extent to which economies of scale were being realized by the Manager and whether the fund or other funds benefit from any such economies of scale under the fee levels set forth in the Contract. The Board concluded that the advisory fee structure for the fund continued to provide for a reasonable sharing of benefits from economies of scale with the fund’s investors.

Fees
The Board reviewed the fund’s management fee rate, operating expenses, and total expense ratio and compared them with fees and expenses of other comparable funds based on information and data supplied by Lipper. The information provided to the Board showed that the fund’s management fee (after waivers) and expense ratio were generally below the median of comparable funds. The Board also reviewed the fee schedules for comparable privately managed accounts of the Manager and its affiliates. Management informed the Board that the Manager’s responsibilities for privately managed accounts are more limited than its responsibilities for the fund and other T. Rowe Price mutual funds that it or its affiliates advise. On the basis of the information provided, the Board concluded that the fees paid by the fund under the Contract were reasonable.

Approval of the Contract
As noted, the Board approved the continuation of the Contract. No single factor was considered in isolation or to be determinative to the decision. Rather, the Board concluded, in light of a weighting and balancing of all factors considered, that it was in the best interests of the fund to approve the continuation of the Contract, including the fees to be charged for services thereunder.

Item 2. Code of Ethics.

A code of ethics, as defined in Item 2 of Form N-CSR, applicable to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions is filed as an exhibit to the registrant’s annual Form N-CSR. No substantive amendments were approved or waivers were granted to this code of ethics during the registrant’s most recent fiscal half-year.

Item 3. Audit Committee Financial Expert.

Disclosure required in registrant’s annual Form N-CSR.

Item 4. Principal Accountant Fees and Services.

Disclosure required in registrant’s annual Form N-CSR.

Item 5. Audit Committee of Listed Registrants.

Not applicable.

Item 6. Investments.

(a) Not applicable. The complete schedule of investments is included in Item 1 of this Form N-CSR.

(b) Not applicable.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable.

Item 8. Portfolio Managers of Closed-End Management Investment Companies.

Not applicable.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

Not applicable.

Item 10. Submission of Matters to a Vote of Security Holders.

Not applicable.

Item 11. Controls and Procedures.

(a) The registrant’s principal executive officer and principal financial officer have evaluated the registrant’s disclosure controls and procedures within 90 days of this filing and have concluded that the registrant’s disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-CSR was recorded, processed, summarized, and reported timely.

(b) The registrant’s principal executive officer and principal financial officer are aware of no change in the registrant’s internal control over financial reporting that occurred during the registrant’s second fiscal quarter covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12. Exhibits.

(a)(1) The registrant’s code of ethics pursuant to Item 2 of Form N-CSR is filed with the registrant’s annual Form N-CSR.

    (2) Separate certifications by the registrant's principal executive officer and principal financial officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached.

    (3) Written solicitation to repurchase securities issued by closed-end companies: not applicable.

(b) A certification by the registrant's principal executive officer and principal financial officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(b) under the Investment Company Act of 1940, is attached.

SIGNATURES
	Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment
Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.
T. Rowe Price Institutional International Funds, Inc.
By	/s/ Edward C. Bernard
	Edward C. Bernard
	Principal Executive Officer
Date	June 17, 2008
	Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment
Company Act of 1940, this report has been signed below by the following persons on behalf of
the registrant and in the capacities and on the dates indicated.
By	/s/ Edward C. Bernard
	Edward C. Bernard
	Principal Executive Officer
Date	June 17, 2008
By	/s/ Gregory K. Hinkle
	Gregory K. Hinkle
	Principal Financial Officer
Date	June 17, 2008

EX-99.CERT

Item 12(a)(2).

CERTIFICATIONS

I, Edward C. Bernard, certify that:
1.	I have reviewed this report on Form N-CSR of T. Rowe Price Institutional Global Equity Fund;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit
	to state a material fact necessary to make the statements made, in light of the circumstances under
	which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this
	report, fairly present in all material respects the financial condition, results of operations, changes in
	net assets, and cash flows (if the financial statements are required to include a statement of cash
	flows) of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining
	disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act
	of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the
	Investment Company Act of 1940) for the registrant and have:
	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and
		procedures to be designed under our supervision, to ensure that material information relating to
		the registrant, including its consolidated subsidiaries, is made known to us by others within those
		entities, particularly during the period in which this report is being prepared;
	(b)	Designed such internal control over financial reporting, or caused such internal control over
		financial reporting to be designed under our supervision, to provide reasonable assurance
		regarding the reliability of financial reporting and the preparation of financial statements for
		external purposes in accordance with generally accepted accounting principles;
	(c)	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in
		this report our conclusions about the effectiveness of the disclosure controls and procedures, as of
		a date within 90 days prior to the filing date of this report based on such evaluation; and
	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that
		occurred during the second fiscal quarter of the period covered by this report that has materially
		affected, or is reasonably likely to materially affect, the registrant’s internal control over financial
		reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the
	audit committee of the registrant's board of directors (or persons performing the equivalent
	functions):
	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control
		over financial reporting which are reasonably likely to adversely affect the registrant's ability to
		record, process, summarize, and report financial information; and
	(b)	Any fraud, whether or not material, that involves management or other employees who have a
		significant role in the registrant's internal control over financial reporting.

Date:	June 17, 2008	/s/ Edward C. Bernard
		Edward C. Bernard
		Principal Executive Officer

CERTIFICATIONS 

I, Gregory K. Hinkle, certify that:
1.	I have reviewed this report on Form N-CSR of T. Rowe Price Institutional Global Equity Fund;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit
	to state a material fact necessary to make the statements made, in light of the circumstances under
	which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this
	report, fairly present in all material respects the financial condition, results of operations, changes in
	net assets, and cash flows (if the financial statements are required to include a statement of cash
	flows) of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining
	disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act
	of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the
	Investment Company Act of 1940) for the registrant and have:
	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and
		procedures to be designed under our supervision, to ensure that material information relating to
		the registrant, including its consolidated subsidiaries, is made known to us by others within those
		entities, particularly during the period in which this report is being prepared;
	(b)	Designed such internal control over financial reporting, or caused such internal control over
		financial reporting to be designed under our supervision, to provide reasonable assurance
		regarding the reliability of financial reporting and the preparation of financial statements for
		external purposes in accordance with generally accepted accounting principles;
	(c)	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in
		this report our conclusions about the effectiveness of the disclosure controls and procedures, as of
		a date within 90 days prior to the filing date of this report based on such evaluation; and
	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that
		occurred during the second fiscal quarter of the period covered by this report that has materially
		affected, or is reasonably likely to materially affect, the registrant’s internal control over financial
		reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the
	audit committee of the registrant's board of directors (or persons performing the equivalent
	functions):
	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control
		over financial reporting which are reasonably likely to adversely affect the registrant's ability to
		record, process, summarize, and report financial information; and
	(b)	Any fraud, whether or not material, that involves management or other employees who have a
		significant role in the registrant's internal control over financial reporting.

Date:	June 17, 2008	/s/ Gregory K. Hinkle
		Gregory K. Hinkle
		Principal Financial Officer

EX-99.906 CERT

Item 12(b).
CERTIFICATION UNDER SECTION 906 OF SARBANES-OXLEY ACT OF 2002
Name of Issuer: T. Rowe Price Institutional Global Equity Fund
In connection with the Report on Form N-CSR for the above named Issuer, the undersigned hereby
certifies, to the best of his knowledge, that:
1.	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities
	Exchange Act of 1934;
2.	The information contained in the Report fairly presents, in all material respects, the financial
	condition and results of operations of the Issuer.
Date: June 17, 2008		/s/ Edward C. Bernard
		Edward C. Bernard
		Principal Executive Officer
Date: June 17, 2008		/s/ Gregory K. Hinkle
		Gregory K. Hinkle
		Principal Financial Officer