US Sustainability Core 1 Portfolio


Inception Date
March 12, 2008 		Ticker Symbol
DFSIX		 CUSIP Number
233-203-215

The US Sustainability Core 1 Portfolio is a no-load mutual fund designed to achieve long-term capital appreciation. The Portfolio seeks to purchase a broad and diverse range of US securities with an increased exposure to small cap stocks and those it considers to be value stocks, relative to the market universe. In assessing value, Dimensional may consider factors such as the issuer's securities having a high book value in relation to their market value, as well as price-to-cash-flow or price-to-earnings ratios.

The Portfolio seeks to take into account environmental impact considerations when determining security weights. Relative to a portfolio without such criteria, the Portfolio seeks to exclude or underweight securities of companies that, according to its environmental impact considerations, may have a relatively negative impact on the environment; and it seeks to overweight securities of companies that may have a relatively positive impact on the environment.

Downloads

Prospectus

SAI

For a full description, please consult the Portfolio's prospectus.

Prices
Updated Daily
 
Date Closing Price NAV Change $ NAV Change %
May 12, 2008 $10.87 $0.12 1.12%

These Net Asset Values ("NAVs") have been prepared by the fund accounting agent. Dimensional Fund Advisors reserves the right to restate these NAVs, if necessary, at any time.


Performance
Updated Monthly
Total Returns One Month Three Month Year-to-Date
As of April 30, 2008 4.51% N/A N/A
 
Average Annual Total Returns One Year Five Years Ten Years Since Inception
As of April 30, 2008 N/A N/A N/A 6.50%*

* Returns for periods less than one year are not annualized.


Updated Quarterly
Average Annual Total Returns One Year Five Years Ten Years Since Inception
As of March 31, 2008 N/A N/A N/A 1.90%*

* Returns for periods less than one year are not annualized.

Performance data represents past performance. Past performance is no guarantee of future results, and current performance may be higher or lower than the performance displayed. The investment return and principal value of an investment will fluctuate such that an investor's shares, when redeemed, may be worth more or less than their original cost. Total returns include reinvestment of dividends and capital gains and are net of all fees and expenses. Prior to April 2002, certain international equity portfolios charged a reimbursement fee to the purchasers of shares of those portfolios.


Annual Expenses Total Operating
Expense Ratio		 Net Expense Ratio
(to investor)
As of March 29, 2008 0.38% 0.37%

Dimensional has contractually agreed to waive certain fees and assume expenses for a one-year period set to terminate on April 1 unless renewed. Dimensional may seek reimbursement for amounts previously waived under the conditions outlined in the prospectus.




Top Holdings
 

As of April 30, 2008
% of Portfolio
CHEVRON CORP 3.24
BANK OF AMERICA CORP 2.22
CHASE MANHATTAN CORP NEW COM 2.07
GENERAL ELECTRIC CO. 2.01
VERIZON COMMUNICATIONS INC 1.60
PFIZER INC 1.59
NORWEST CORP. 1.42
CONOCOPHILLIPS 1.40
JOHNSON & JOHNSON 1.33
MICROSOFT CORP 1.25
WALT DISNEY CO/THE 1.15
INTERNATIONAL BUSINESS MACHINES 1.15
PROCTER & GAMBLE CO 0.98
APPLE INC 0.85
COCA-COLA CO/THE 0.81
AMERICAN INTERNATIONAL GROUP I 0.72
TIME WARNER INC 0.69
SCHLUMBERGER LTD 0.68
HEWLETT PACKARD CO. 0.68
KRAFT FOODS INC 0.62
Total 26.46


View proxy vote filings.

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 funds that own them, to rise or fall. Because the value of your investment in a fund will fluctuate, there is a risk that you will lose money.

Small Company Risk
Securities of small firms are often less liquid than those of large companies. As a result, small company stocks may fluctuate relatively more in price.

Environmental Impact Consideration Investment Risk
A Portfolio's environmental impact considerations may limit the number of investment opportunities available to the Portfolio, and as a result, at times, the Portfolio may produce more modest gains than funds that are not subject to such special investment considerations. For example, a Portfolio may decline to purchase, or underweight its investment in, certain securities due to environmental impact considerations when other investment considerations would suggest that a more significant investment in such securities would be advantageous. In addition, a Porfolio may sell certain securities due to environmental impact considerations when it is otherwise disadvantageous to do so. The environmental impact considerations may cause the Portfolio's industry allocation to deviate from that of funds without these considerations and of conventional benchmarks.

Dimensional Fund Advisors is an investment advisor registered with the Securities and Exchange Commission. Consider the investment objectives, risks, and charges and expenses of the Dimensional funds carefully before investing. For this and other information about the Dimensional funds, please read the prospectus carefully before investing. Prospectuses are available by calling Dimensional Fund Advisors collect at (310) 395-8005; on the Internet at www.dimensional.com; or, by mail, DFA Securities Inc., c/o Dimensional Fund Advisors, 1299 Ocean Avenue, Santa Monica, CA 90401.

Mutual funds distributed by DFA Securities Inc.