X0101 EFFECT 33 LIVE 2010-02-26 0001193125-10-040971 485APOS 0000861929 DIMENSIONAL INVESTMENT GROUP INC 033-33980 S000001010 LWAS/DFA TWO YEAR GOVERNMENT PORTFOLIO C000002761 LWAS/DFA TWO YEAR GOVERNMENT PORTFOLIO S000001012 THE U.S. LARGE CAP VALUE PORTFOLIO II C000002763 THE U.S. LARGE CAP VALUE PORTFOLIO II S000001014 U.S. LARGE COMPANY INSTITUTIONAL INDEX PORTFOLIO C000002765 U.S. LARGE COMPANY INSTITUTIONAL INDEX PORTFOLIO S000001015 TAX-MANAGED U.S. MARKETWIDE VALUE PORTFOLIO II C000002766 TAX-MANAGED U.S. MARKETWIDE VALUE PORTFOLIO II S000001016 GLOBAL EQUITY PORTFOLIO C000002767 GLOBAL EQUITY PORTFOLIO - CLASS R2 S000001016 GLOBAL EQUITY PORTFOLIO C000002768 GLOBAL EQUITY PORTFOLIO - INSTITUTIONAL CLASS S000001016 GLOBAL EQUITY PORTFOLIO C000053610 Global Equity Portfolio - Class R1 S000001017 GLOBAL 60/40 PORTFOLIO C000002769 GLOBAL 60/40 PORTFOLIO - CLASS R2 S000001017 GLOBAL 60/40 PORTFOLIO C000002770 GLOBAL 60/40 PORTFOLIO - INSTITUTIONAL CLASS S000001017 GLOBAL 60/40 PORTFOLIO C000053611 Global 60/40 Portfolio - Class R1 S000001018 GLOBAL 25/75 PORTFOLIO C000002771 GLOBAL 25/75 PORTFOLIO - CLASS R2 S000001018 GLOBAL 25/75 PORTFOLIO C000002772 GLOBAL 25/75 PORTFOLIO - INSITUTIONAL CLASS S000001018 GLOBAL 25/75 PORTFOLIO C000053612 Global 25/75 Portfolio - Class R1 S000001019 U.S. LARGE CAP VALUE PORTFOLIO III C000002773 U.S. LARGE CAP VALUE PORTFOLIO III S000001020 EMERGING MARKETS PORTFOLIO II C000002774 EMERGING MARKETS PORTFOLIO II S000001021 LWAS/DFA U.S. HIGH BOOK TO MARKET PORTFOLIO C000002775 LWAS/DFA U.S. HIGH BOOK TO MARKET PORTFOLIO S000001022 DFA INTERNATIONAL VALUE PORTFOLIO C000002776 DFA INTERNATIONAL VALUE PORTFOLIO- INSTITUTIONAL CLASS S000001022 DFA INTERNATIONAL VALUE PORTFOLIO C000053613 DFA International Value Portfolio - Class R1 S000001022 DFA INTERNATIONAL VALUE PORTFOLIO C000053614 DFA International Value Portfolio - Class R2 S000001023 DFA INTERNATIONAL VALUE PORTFOLIO II C000002777 DFA INTERNATIONAL VALUE PORTFOLIO II S000001024 DFA INTERNATIONAL VALUE PORTFOLIO IV C000002778 DFA INTERNATIONAL VALUE PORTFOLIO IV S000001025 DFA INTERNATIONAL VALUE PORTFOLIO III C000002779 DFA INTERNATIONAL VALUE PORTFOLIO III S000001026 LWAS/DFA TWO YEAR FIXED INCOME PORTFOLIO C000002780 LWAS/DFA TWO YEAR FIXED INCOME PORTFOLIO