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DFA Global Core Plus Fixed Income Portfolio

DFA Global Core Plus Fixed Income Portfolio

Investment Objective

The investment objective of the DFA Global Core Plus Fixed Income Portfolio (the “Global Core Plus Fixed Income Portfolio” or the “Portfolio”) is to maximize total returns from the universe of fixed income securities in which the Portfolio invests. Total return is comprised of income and capital appreciation.

Fees and Expenses of the Portfolio

This table describes the fees and expenses you may pay if you buy, hold or sell shares of the Global Core Plus Fixed Income Portfolio. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below.

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

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

Annual Fund Operating Expenses	DFA Global Core Plus Fixed Income Portfolio Institutional Class	[1]
Management Fee	0.20%
Other Expenses	0.02%
Total Annual Fund Operating Expenses	0.22%

EXAMPLE

This Example is meant to help you compare the cost of investing in the Global Core Plus Fixed Income 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. 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
DFA Global Core Plus Fixed Income Portfolio | Institutional Class | USD ($)	23	71	124	280

PORTFOLIO TURNOVER

The Global Core Plus Fixed Income Portfolio 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 Portfolio 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 most recent fiscal year, the Portfolio’s portfolio turnover rate was 45% of the average value of its investment portfolio.

Principal Investment Strategies

The Global Core Plus Fixed Income Portfolio seeks to achieve its investment objective by investing in a universe of U.S. and foreign fixed income securities. The Portfolio may invest in obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, including mortgage-backed securities, corporate debt obligations, bank obligations, commercial paper, repurchase agreements, money market funds,

securities of domestic or foreign issuers denominated in U.S. dollars but not trading in the United States, and obligations of supranational organizations. The Portfolio may purchase or sell mortgage-backed securities on a delayed delivery or forward commitment basis through the “to-be-announced” (TBA) market. Dimensional Fund Advisors LP (the “Advisor”) expects that the Portfolio will primarily invest in the obligations of issuers that are in developed countries.

The Global Core Plus Fixed Income Portfolio may invest in fixed income securities considered investment grade at the time of purchase (e.g., rated BBB- or above by S&P Global Ratings (“S&P”) or Fitch Ratings Ltd. (“Fitch”) or Baa3 or above by Moody’s Investor’s Service, Inc. (“Moody’s”)) and in lower-rated (i.e., below investment grade, also known as “junk” bonds) fixed income securities. The Portfolio may invest with an emphasis on fixed income securities rated in the lower half of the investment grade spectrum (e.g., rated BBB- to A+ by S&P or Fitch or Baa3 to A1 by Moody’s). In addition, the Portfolio may invest in fixed income securities rated below investment grade. The Portfolio may not emphasize investments in lower-rated debt securities, however, when the Advisor believes the expected credit premium is relatively low.

The Global Core Plus Fixed Income Portfolio primarily invests in securities that mature within twenty years from the date of settlement, but may, as in the case of mortgage-backed securities, invest in securities with longer maturities. Under normal circumstances, the Portfolio will generally maintain a weighted average duration of no more than one half year greater than, and no less than one year below, the weighted average duration of the Portfolio’s benchmark, the Bloomberg Global Aggregate Bond Index (hedged to USD), which was approximately 6.69 years as of December 31, 2022. From time to time, the Portfolio may deviate from this duration range when the Advisor determines it to be appropriate under the circumstances. Duration is a measure of the sensitivity of a security’s price to changes in interest rates. The longer a security’s duration, the more sensitive it will be to changes in interest rates. The Portfolio is authorized to invest more than 25% of its total assets in U.S. Treasury bonds, bills and notes, and obligations of federal agencies and instrumentalities.

The Portfolio intends to invest its assets to gain exposure to at least three different countries, including the United States. Under normal circumstances, the Portfolio invests at least 30% of its net assets in non-U.S. issuers. As of the date of the Prospectus, the Portfolio invests approximately 54% of its net assets in U.S. issuers. This percentage will change due to market conditions. An issuer may be considered to be of a country if it is organized under the laws of, maintains its principal place of business in, has at least 50% of its assets or derives at least 50% of its operating income in, or is a government, government agency, instrumentality or central bank of, that country. As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in fixed income securities.

The Global Core Plus Fixed Income Portfolio will be managed with a view to capturing expected credit premiums and expected term premiums. The term “expected credit premium” means the expected incremental return on investment for holding obligations considered to have greater credit risk than direct obligations of the U.S. Treasury, and “expected term premium” means the expected relative return on investment for holding securities having longer-term maturities as compared to shorter-term maturities. In managing the Portfolio, the Advisor will increase or decrease investment exposure to intermediate-term securities depending on the expected term premium and also increase or decrease investment exposure to lower-rated debt securities depending on the expected credit premium.

Because many of the Global Core Plus Fixed Income Portfolio’s investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency forward contracts to attempt to protect against uncertainty in the level of future foreign currency rates, to hedge against fluctuations in currency exchange rates or to transfer balances from one currency to another. The Portfolio also may enter into credit default swaps on issuers or indices to buy or sell credit protection to hedge its credit exposure; gain market or issuer exposure without owning the underlying securities; or increase the Portfolio’s total return. The Portfolio may purchase or sell futures contracts and options on futures contracts, to hedge its interest rate or currency exposure or for non-hedging purposes, such as a substitute for direct investment or to increase or decrease market exposure, including adjustments based on actual or expected cash inflows to or outflows from the Portfolio.

The Global Core Plus Fixed Income Portfolio may lend its portfolio securities to generate additional income.

Principal Risks

Because the value of your investment in the Global Core Plus Fixed Income 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.

Market Risk: Even a long-term investment approach cannot guarantee a profit. Economic, political, and issuer-specific events will cause the value of securities, and the Portfolio that owns them, to rise or fall.

Foreign Securities and Currencies Risk: Foreign securities prices may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.

Foreign Government Debt Risk: The risk that: (a) the governmental entity that controls the repayment of government debt may not be willing or able to repay the principal and/or to pay the interest when it becomes due, due to factors such as political considerations, the relative size of the governmental entity’s debt position in relation to the economy, cash flow problems, insufficient foreign currency reserves, the failure to put in place economic reforms required by the International Monetary Fund or other multilateral agencies, and/or other national economic factors; (b) governments may default on their debt securities, which may require holders of such securities to participate in debt rescheduling; and (c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole or in part.

Mortgage-Backed Securities Risk: Mortgage-backed securities represent interests in “pools” of mortgages and often involve risks that are different from or potentially more significant than risks associated with other types of debt instruments. Mortgage securities differ from typical debt securities in that principal is not paid back at maturity, but rather periodically over the life of the security. The Portfolio may receive unscheduled payments of principal due to voluntary prepayments, refinancings or foreclosures on the underlying mortgage loans. When interest rates decline, borrowers may pay off their mortgages sooner than expected. This can reduce the returns of the Portfolio because it may have to reinvest that money at the lower prevailing interest rates. As a result, mortgage securities may be less effective than some other types of debt securities as a means of securing longterm interest rates and may have less potential for capital appreciation during periods of falling interest rates. Conversely, in a period of rising interest rates, the Portfolio may exhibit additional volatility since rising interest rates tend to extend the duration of fixed rate mortgage-related securities, making them more sensitive to changes in interest rates. As interest rates rise mortgage borrowers are less likely to exercise prepayment options, which may reduce the value of these securities and potentially cause the Portfolio to lose money. This is known as extension risk.

Interest Rate Risk: Fixed income securities are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite direction of interest rates. When interest rates rise, fixed income security prices fall. During periods of very low or negative interest rates, the Portfolio may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, fixed income securities with longer maturities are more sensitive to changes in interest rates.

Credit Risk: Credit risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal when due. A downgrade to an issuer’s credit rating or a perceived change in an issuer’s financial strength may affect a security’s value, and thus, impact the Portfolio’s performance. Government agency obligations have different levels of credit support and, therefore, different degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. government that are supported by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored by the U.S. government, that are supported only by the issuer’s right to borrow from the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by the U.S. government that are sponsored by the credit of the issuing

agencies, such as Freddie Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued or guaranteed by the credit of the agency may still involve a risk of nonpayment of principal and/or interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., BB+ or below by S&P or Fitch or Ba1 or below by Moody’s). Fixed income securities that are below investment grade involve high credit risk and are considered speculative. Below investment grade fixed income securities may also fluctuate in value more than higher quality fixed income securities and, during periods of market volatility, may be more difficult to sell at the time and price the Portfolio desires.

High Yield Risk: Securities rated below investment grade may be subject to greater interest rate, credit, and liquidity risks than investment grade securities. Fixed income securities that are below investment grade involve high credit risk and are considered speculative. Below investment grade fixed income securities may also fluctuate in value more than higher quality fixed income securities and, during periods of market volatility, may be more difficult to sell at the time and price the Portfolio desires.

Income Risk: Income risk is the risk that falling interest rates will cause the Portfolio’s income to decline because, among other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding securities.

Call Risk: Call risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding fixed income security before its maturity date, forcing the Portfolio to reinvest in fixed income securities with lower interest rates than the original obligations.

Derivatives Risk: Derivatives are instruments, such as swaps, futures, and options thereon, and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated by the Portfolio or if the cost of the derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match the foreign currency exposure of such foreign currency forward contracts to the value of the securities involved due to fluctuations in the market values of such securities and cash flows into and out of the Portfolio between the date a foreign currency forward contract is entered into and the date on which it expires. The use of derivatives for non-hedging purposes may be considered to carry more risk than other types of investments. When the 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, settlement, liquidity, interest rate, market, credit and management risks, as well as 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. Additional risks are associated with the use of credit default swaps including counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when the Portfolio is the seller of credit default swaps and counterparty risk increases when the Portfolio is a buyer of credit default swaps. In addition, where the Portfolio is the seller of credit default swaps, it may be required to liquidate portfolio securities at inopportune times in order to meet payment obligations. Credit default swaps may be illiquid or difficult to value.

Liquidity Risk: Liquidity risk exists when particular portfolio investments are difficult to purchase or sell. To the extent that the Portfolio holds illiquid investments, the Portfolio’s performance may be reduced due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase by the Portfolio due to low trading volume, adverse investor perceptions and/or other market developments. Liquidity risk includes the risk that the Portfolio will experience significant net redemptions at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of shares of the Portfolio are concentrated in one or a few investors.

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 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.

Operational Risk: Operational risks include human error, changes in personnel, system changes, faults in communication, and failures in systems, technology, or processes. Various operational events or circumstances are outside the Advisor’s control, including instances at third parties. The Portfolio and the Advisor seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Cyber Security Risk: The 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

The bar chart and table immediately following illustrate the variability of the Global Core Plus Fixed Income Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized one year and since inception returns, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Global Core Plus Fixed Income Portfolio 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 in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

DFA Global Core Plus Fixed Income Portfolio Institutional Class Shares—Total Returns

January 2019-December 2022

Highest Quarter
7.38% (4/20–6/20) Lowest Quarter
-7.39% (4/22–6/22)

Annualized Returns (%)Periods ending December 31, 2022

Average Annual Returns - DFA Global Core Plus Fixed Income Portfolio	1 Year	Since Inception	Inception Date
Institutional Class	(15.87%)	(0.07%)	Jan. 11, 2018
After Taxes on Distributions | Institutional Class	(16.63%)	(1.20%)
After Taxes on Distributions and Sale of Portfolio Shares | Institutional Class	(9.39%)	(0.47%)
Bloomberg Global Aggregate Bond Index (hedged to USD) (reflects no deduction for fees, expenses, or taxes on sales)	(11.22%)	0.43%

[1] The “Management Fee” and “Total Annual Fund Operating Expenses” have been adjusted to reflect the decrease in the management fee payable by the Global Core Plus Fixed Income Portfolio from 0.22% to 0.20% effective as of February 28, 2023.