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> 021
<NAME> GS CORE Large Cap Growth 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> 28,115,575
<INVESTMENTS-AT-VALUE> 34,415,956
<RECEIVABLES> 5,058,787
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 731,127
<TOTAL-ASSETS> 40,205,870
<PAYABLE-FOR-SECURITIES> 6,328,924
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 81,624
<TOTAL-LIABILITIES> 6,410,548
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 26,520,527
<SHARES-COMMON-STOCK> 2,074,086
<SHARES-COMMON-PRIOR> 1,540,670
<ACCUMULATED-NII-CURRENT> 203,010
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 773,312
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 6,298,473
<NET-ASSETS> 33,795,322
<DIVIDEND-INCOME> 295,524
<INTEREST-INCOME> 29,258
<OTHER-INCOME> 0
<EXPENSES-NET> (122,268)
<NET-INVESTMENT-INCOME> 202,514
<REALIZED-GAINS-CURRENT> 605,957
<APPREC-INCREASE-CURRENT> 226,414
<NET-CHANGE-FROM-OPS> 1,034,885
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 599,382
<NUMBER-OF-SHARES-REDEEMED> (65,966)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 9,446,397
<ACCUMULATED-NII-PRIOR> 496
<ACCUMULATED-GAINS-PRIOR> 167,355
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 97,926
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 185,160
<AVERAGE-NET-ASSETS> 28,132,583
<PER-SHARE-NAV-BEGIN> 15.80
<PER-SHARE-NII> 0.10
<PER-SHARE-GAIN-APPREC> 0.39
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 16.29
<EXPENSE-RATIO> 0.87
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
