U.S. High Relative Profitability Portfolio

SHARE CLASS (TICKER): INSTITUTIONAL CLASS (DURPX)

Summary Prospectus

February 28, 2018

Before you invest, you may want to review the Portfolio’s Prospectus, which contains more information about the Portfolio and its risks. You can find the Portfolio’s Prospectus and other information about the Portfolio, including the Statement of Additional Information (SAI) and most recent reports to shareholders, when available, online at https://us.dimensional.com/fund-documents. You can also get this information at no cost by calling collect to (512) 306-7400 or by sending an e-mail request to document_requests@dimensional.com. The Portfolio’s Prospectus and SAI, both dated February 28, 2018, as may be supplemented, are incorporated by reference into this Summary Prospectus.

Investment Objective

The investment objective of the U.S. High Relative Profitability Portfolio is to achieve long-term capital appreciation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses you may pay if you buy and hold shares of the U.S. High Relative Profitability Portfolio.

Shareholder Fees (fees paid directly from your investment): None

Annual Fund Operating Expenses (expenses that you pay each

year as a percentage of the value of your investment)

Management Fee	0.20%
Other Expenses*	0.08%
Total Annual Fund Operating Expenses	0.28%
Fee Waiver and/or Expense Reimbursement**	0.03%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.25%

* The U.S. High Relative Profitability Portfolio is a new portfolio, so the “Other Expenses” shown are based on anticipated fees and expenses for the first full fiscal year.

** Dimensional Fund Advisors LP (the “Advisor”) has agreed to waive certain fees and in certain instances, assume certain expenses of the U.S. High Relative Profitability Portfolio. The Fee Waiver and Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2019, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six months after such fee waiver and/or expense assumption.

EXAMPLE

This Example is meant to help you compare the cost of investing in the U.S. High Relative Profitability Portfolio with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that result from the

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contractual expense waiver in the first year only. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

1 Year			3 Years
	$	26		$	87

PORTFOLIO TURNOVER

A mutual fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when mutual fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio’s performance. During the period May 16, 2017 (commencement of operations) to October 31, 2017, the U.S. High Relative Profitability Portfolio’s portfolio turnover rate was 0% of the average value of its investment portfolio.

Principal Investment Strategies

The U.S. High Relative Profitability Portfolio purchases a broad and diverse group of readily marketable securities of large U.S. companies that the Advisor determines to have high profitability relative to other U.S. large cap companies at the time of purchase. In assessing profitability, the Advisor may consider different ratios, such as that of earnings or profits from operations relative to book value or assets. The Advisor may also adjust the representation in the Portfolio of an eligible company, or exclude a company, after considering such factors as market capitalization, free float, size, value, profitability, momentum, trading strategies, liquidity management and other factors that the Advisor determines to be appropriate, given market conditions. Securities are considered value stocks primarily because a company’s shares have a low price in relation to their book value. In assessing value, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. The criteria the Advisor uses for assessing value or profitability are subject to change from time to time.

As a non-fundamental policy, under normal circumstances, the U.S. High Relative Profitability Portfolio will invest at least 80% of its net assets in securities of U.S. companies. As of the date of this Prospectus, for purposes of the Portfolio, the Advisor considers large cap companies to be companies whose market capitalizations are generally in the highest 90% of total market capitalization or companies whose market capitalizations are larger than or equal to the 1,000th largest U.S. company, whichever results in the higher market capitalization break. Total market capitalization is based on the market capitalization of U.S. operating companies listed on the New York Stock Exchange (“NYSE”), NYSE American LLC, Nasdaq Global Market^®, Nasdaq Capital Market^®, or such other securities exchanges deemed appropriate by the Advisor. Under the Advisor’s market capitalization guidelines described above, based on market capitalization data as

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of December 31, 2017, the market capitalization of a large cap company would be $5,282 million or above. This dollar amount will change due to market conditions.

The U.S. High Relative Profitability Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities and indices, to adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio. The Portfolio does not intend to sell futures contracts to establish short positions in individual securities or to use derivatives for purposes of speculation or leveraging investment returns. The Portfolio may invest in exchange-traded funds (“ETFs”) and similarly structured pooled investments for the purpose of gaining exposure to the U.S. stock market while maintaining liquidity.

The U.S. High Relative Profitability Portfolio may lend its portfolio securities to generate additional income.

Principal Risks

Because the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a description of principal risks of investing in the Portfolio.

Equity Market Risk: Even a long-term investment approach cannot guarantee a profit. Economic, market, political, and issuer-specific conditions and events will cause the value of equity securities, and the U.S. High Relative Profitability Portfolio that owns them, to rise or fall. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices.

Investment Strategy Risk: Securities that have high profitability may perform differently from the market as a whole and an investment strategy emphasizing these securities may cause the U.S. High Relative Profitability Portfolio to at times underperform equity funds that use other investment strategies.

Derivatives Risk: Derivatives are instruments, such as futures contracts, whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than other types of investments. When the U.S. High Relative Profitability Portfolio uses derivatives, the Portfolio will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, credit and management risks, and the risk of improper valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and the Portfolio could lose more than the principal amount invested.

Securities Lending Risk: Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, the U.S. High

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Relative Profitability Portfolio may lose money and there may be a delay in recovering the loaned securities. The Portfolio could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. Securities lending also may have certain adverse tax consequences.

Cyber Security Risk: The U.S. High Relative Profitability Portfolio’s and its service providers’ use of internet, technology and information systems may expose the Portfolio to potential risks linked to cyber security breaches of those technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, customer data, or fund assets, or cause the Portfolio and/or its service providers to suffer data corruption or lose operational functionality.

Performance

Performance information is not available for the U.S. High Relative Profitability Portfolio because it has not yet completed a full calendar year of operations. Updated performance information for the Portfolio can be obtained in the future by visiting http://us.dimensional.com.

Investment Advisor/Portfolio Management

Dimensional Fund Advisors LP serves as the investment advisor for the U.S. High Relative Profitability Portfolio. The following individuals are responsible for coordinating the day-to-day management of the Portfolio:

• Joseph H. Chi, Senior Portfolio Manager and Vice President of the Advisor, has been a portfolio manager of the Portfolio since inception (2017).

• Jed S. Fogdall, Senior Portfolio Manager and Vice President of the Advisor, has been a portfolio manager of the Portfolio since inception (2017).

• Lukas J. Smart, Senior Portfolio Manager and Vice President of the Advisor, has been a portfolio manager of the Portfolio since inception (2017).

Purchase and Redemption of Fund Shares

Investors may purchase or redeem shares of the U.S. High Relative Profitability Portfolio on each day that the NYSE is scheduled to be open for business by first contacting the Portfolio’s transfer agent at (888) 576-1167. Shareholders that invest in the Portfolio through a financial intermediary should contact their financial intermediary regarding purchase and redemption procedures. The Portfolio generally is available for investment only by institutional clients, clients of registered investment advisors, clients of financial institutions and a limited number of certain other investors as approved from time to time by the Advisor. All investments are subject to approval of the Advisor.

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Tax Information

The dividends and distributions you receive from the U.S. High Relative Profitability Portfolio are taxable and generally will be taxed as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account, in which case distributions may be taxed as ordinary income when withdrawn from the plan or account.

Payments to Financial Intermediaries

If you purchase the Portfolio through a broker-dealer or other financial intermediary (such as a bank), the Portfolio and its related companies may pay the intermediary for the sale of the Portfolio shares and/or related services. These payments may create a conflict of interest by influencing the financial intermediary to recommend the Portfolio over another investment. Ask your financial advisor or visit your financial intermediary’s website for more information.

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Dimensional Fund Advisors LP 6300 Bee Cave Road, Building One Austin, TX 78746 (512) 306-7400   RRD022818-DURPX 00206431