T. Rowe Price Institutional International Core Equity Fund

T. ROWE PRICE<br/><br/>Institutional International Core Equity Fund<br/><br/>SUMMARY

Investment Objective

The fund seeks long-term growth of capital through investments in the common stocks of non-U.S. companies.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the fund, which are not reflected in the table.

Fees and Expenses of the Fund<br/><br/><b>Shareholder fees (fees paid directly from your investment)</b>

Shareholder Fees	T. Rowe Price Institutional International Core Equity Fund T. Rowe Price Institutional International Core Equity Fund
Redemption fee (as a percentage of amount redeemed on shares held for 90 days or less)	2.00%	[1]

<b>Annual fund operating expenses<br/>(expenses that you pay each year as a<br/>percentage of the value of your investment)</b>

Annual Fund Operating Expenses	T. Rowe Price Institutional International Core Equity Fund T. Rowe Price Institutional International Core Equity Fund
Management fees	0.65%
Other expenses	0.21%
Total annual fund operating expenses	0.86%
Fee waiver/expense reimbursement	(0.11%)	[1]
Total annual fund operating expenses after fee waiver/expense reimbursement	0.75%	[1]

Example

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund’s operating expenses remain the same. The example also assumes that an expense limitation arrangement currently in place is not renewed; therefore, the figures have been adjusted to reflect fee waivers or expense reimbursements only in the periods for which the expense limitation arrangement is expected to continue. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 year	3 years	5 years	10 years
T. Rowe Price Institutional International Core Equity Fund | T. Rowe Price Institutional International Core Equity Fund | USD ($)	77	252	455	1,040

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 the fund’s shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 32.3% of the average value of its portfolio.

Investments, Risks, and Performance<br/><br/>Principal Investment Strategies

The fund expects to invest significantly outside the U.S. and to diversify broadly among developed markets and, to a lesser extent, emerging market countries throughout the world. The fund normally invests at least 80% of its net assets (including any borrowings for investment purposes) in non-U.S. stocks and at least 65% of its net assets in stocks of large-cap companies. For purposes of determining whether the fund invests at least 80% of its net assets in non-U.S. stocks, the fund relies on the country assigned to a security by MSCI Inc. or another unaffiliated data provider. The fund may at times invest significantly in certain sectors, such as the financials sector.

The fund takes a core approach to investing, which provides some exposure to both growth and value styles of investing. The adviser relies on a global research team to search for particularly promising stocks. The adviser will select securities that the adviser believes have the most favorable combination of company fundamentals and valuation.

In selecting investments, the adviser generally favors companies with one or more of the following characteristics:

• attractive business niche with potential for earnings growth;

• attractive valuation relative to the company’s peers or its own historical norm;

• barriers to entry in its business;

• seasoned management;

• healthy balance sheet; and

• potential to grow dividends or conduct share repurchases.

The fund may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into more promising opportunities.

Principal Risks

As with any mutual fund, there is no guarantee that the fund will achieve its objective. The fund’s share price fluctuates, which means you could lose money by investing in the fund. The principal risks of investing in this fund are summarized as follows:

Active management risks The investment adviser’s judgments about the attractiveness, value, or potential appreciation of the fund’s investments may prove to be incorrect. The fund could underperform in comparison to other funds with a similar benchmark or similar objectives and investment strategies if the fund’s overall investment selections or strategies fail to produce the intended results.

Risks of stock investing Common stocks generally fluctuate in value more than bonds and may decline significantly over short time periods. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising and falling prices. The value of a stock in which the fund invests may decline due to general weakness in the stock market or because of factors that affect a particular company or industry.

International investing risks Investing in the securities of non-U.S. issuers involves special risks not typically associated with investing in U.S. issuers. International securities tend to be more volatile and have lower overall liquidity than investments in U.S. securities and may lose value because of adverse local, political, social, or economic developments overseas, or due to changes in the exchange rates between foreign currencies and the U.S. dollar. In addition, international investments are subject to settlement practices and regulatory and financial reporting standards that differ from those of the U.S. These risks are heightened for the fund’s investments in emerging markets, which are more susceptible to governmental interference, less efficient trading markets, and the imposition of local taxes and restrictions on gaining access to the fund’s investments for foreign investors.

Investment style risks Different investment styles tend to shift in and out of favor depending on market conditions and investor sentiment. Because the fund may hold stocks with either growth or value characteristics, it could underperform other stock funds that take a strictly growth or value approach to investing when one style is currently in favor. Growth stocks tend to be more volatile than the overall stock market and can have sharp price declines as a result of earnings disappointments. Value stocks carry the risk that the market will not recognize their intrinsic value or that they are actually appropriately priced at a low level.

Market capitalization risks Although stocks issued by larger companies tend to have less overall volatility than stocks issued by smaller companies, larger companies may not be able to attain the high growth rates of successful smaller companies, especially during strong economic periods. In addition, larger companies may be less capable of responding quickly to competitive challenges and industry changes, and may suffer sharper price declines as a result of earnings disappointments.

Sector concentration risks At times, the fund may have a significant portion of its assets invested in securities of companies conducting business in a broadly related group of industries within an economic sector. Companies in the same economic sector may be similarly affected by economic or market events, making the fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. For example, the fund may have a significant portion of its assets invested in securities of companies in the financials sector. Companies in the financials sector may be adversely impacted by, among other things, regulatory changes, economic conditions, interest rates, credit rating downgrades, and decreased liquidity in credit markets.

Performance

The following performance information provides some indication of the risks of investing in the fund. The fund’s performance information represents only past performance (before and after taxes) and is not necessarily an indication of future results.

The following bar chart illustrates how much returns can differ from year to year by showing calendar year returns and the best and worst calendar quarter returns during those years for the fund.

<b>INSTITUTIONAL INTERNATIONAL CORE EQUITY FUND</b><br/>Calendar Year Returns

	Quarter Ended	Total Return		Quarter Ended	Total Return
Best Quarter	3/31/12	12.17%	Worst Quarter	9/30/11	-20.68%

The following table shows the average annual total returns for the fund, and also compares the returns with the returns of a relevant broad-based market index, as well as with the returns of one or more comparative indexes that have investment characteristics similar to those of the fund.

In addition, the table shows hypothetical after-tax returns to demonstrate how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or an IRA.

<b>Average Annual Total Returns</b><br/><br/><b>Periods ended</b><br/><b>December 31, 2018</b>

Average Annual Total Returns - T. Rowe Price Institutional International Core Equity Fund		1 Year	5 Years	Since inception		Inception date
T. Rowe Price Institutional International Core Equity Fund		(15.33%)	0.62%	4.26%		Oct. 27, 2010
T. Rowe Price Institutional International Core Equity Fund | Returns after taxes on distributions		(16.10%)	0.13%	3.85%		Oct. 27, 2010
T. Rowe Price Institutional International Core Equity Fund | Returns after taxes on distributions and sale of fund shares		(7.19%)	0.79%	3.66%		Oct. 27, 2010
MSCI EAFE Index Net (reflects no deduction for fees or expenses)	[1]	(13.79%)	0.53%	3.76%	[2]	Oct. 27, 2010
MSCI EAFE Index (reflects no deduction for fees, expenses, or taxes)		(13.36%)	1.00%	4.23%	[2]	Oct. 27, 2010
Lipper International Large-Cap Core Funds Average		(15.46%)	(0.50%)	2.60%	[3]	Oct. 31, 2010

Updated performance information is available through troweprice.com.

[1] Effective April 1, 2019, the fund will no longer assess a redemption fee on any redemption from the fund (or exchange out of the fund), regardless of how long the shares were held.

[1] T. Rowe Price Associates, Inc., has agreed (through February 28, 2021) to waive its fees and/or bear any expenses (excluding interest; expenses related to borrowings, taxes, and brokerage; nonrecurring, extraordinary expenses; and acquired fund fees and expenses) that would cause the ratio of expenses to average daily net assets to exceed 0.75%. The agreement may be terminated at any time beyond February 28, 2021, with approval by the fund’s Board of Directors. Fees waived and expenses paid under this agreement (and a previous limitation of 0.75%) are subject to reimbursement to T. Rowe Price Associates, Inc., by the fund whenever the expense ratio is below 0.75%. However, no reimbursement will be made more than three years from the date such amounts were initially waived or reimbursed. The fund may only make repayments to T. Rowe Price Associates, Inc., if such repayment does not cause the expense ratio (after the repayment is taken into account) to exceed the lesser of: (1) the expense limitation in place at the time such amounts were waived; or (2) the current expense limitation.

[1] Effective July 1, 2018, the MSCI EAFE Index Net replaced the MSCI EAFE Index as the fund’s primary benchmark. The new index assumes the reinvestment of dividends after the deduction of withholding taxes applicable to the country where the dividend is paid; as such, the returns of the new benchmark are more representative of the returns experienced by investors in foreign issuers.

[2] Return since 10/27/10.

[3] Return since 10/31/10.