WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
SEMI-ANNUAL REPORT DATED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<SERIES>
<NUMBER> 031
<NAME> GS CORE Small Cap Equity Fund
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 32,255,424
<INVESTMENTS-AT-VALUE> 33,145,563
<RECEIVABLES> 11,132,354
<ASSETS-OTHER> 852
<OTHER-ITEMS-ASSETS> 314,637
<TOTAL-ASSETS> 44,593,406
<PAYABLE-FOR-SECURITIES> 14,088,684
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 93,022
<TOTAL-LIABILITIES> 14,181,706
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 28,488,900
<SHARES-COMMON-STOCK> 2,766,702
<SHARES-COMMON-PRIOR> 1,272,177
<ACCUMULATED-NII-CURRENT> 51,882
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 980,779
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 890,139
<NET-ASSETS> 30,411,700
<DIVIDEND-INCOME> 95,230
<INTEREST-INCOME> 60,975
<OTHER-INCOME> 0
<EXPENSES-NET> (104,323)
<NET-INVESTMENT-INCOME> 51,882
<REALIZED-GAINS-CURRENT> 1,311,491
<APPREC-INCREASE-CURRENT> (628,243)
<NET-CHANGE-FROM-OPS> 735,130
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,718,724
<NUMBER-OF-SHARES-REDEEMED> (224,198)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 16,923,946
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (330,712)
<GROSS-ADVISORY-FEES> 79,933
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 209,115
<AVERAGE-NET-ASSETS> 21,432,529
<PER-SHARE-NAV-BEGIN> 10.60
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0.37
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.99
<EXPENSE-RATIO> 0.98
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
