<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000892538
<NAME> SUNAMERICA SERIES TRUST
<SERIES>
<NUMBER> 027
<NAME> SUNAMERICA SERIES TRUST GOLDMAN SACHS RESEARCH PORTFOLIO
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2001
<PERIOD-START> JUL-05-2000
<PERIOD-END> JUL-31-2000
<INVESTMENTS-AT-COST> 7,831,209
<INVESTMENTS-AT-VALUE> 7,886,331
<RECEIVABLES> 37,224
<ASSETS-OTHER> 7,724
<OTHER-ITEMS-ASSETS> 321
<TOTAL-ASSETS> 7,931,600
<PAYABLE-FOR-SECURITIES> 392,024
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 13,416
<TOTAL-LIABILITIES> 405,440
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 7,487,830
<SHARES-COMMON-STOCK> 737,439
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 701
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (17,493)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 55,122
<NET-ASSETS> 7,526,160
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 6,680
<OTHER-INCOME> 0
<EXPENSES-NET> 5,979
<NET-INVESTMENT-INCOME> 701
<REALIZED-GAINS-CURRENT> (17,493)
<APPREC-INCREASE-CURRENT> 55,122
<NET-CHANGE-FROM-OPS> 38,330
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 738,334
<NUMBER-OF-SHARES-REDEEMED> (895)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 7,526,160
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 5,314
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 13,713
<AVERAGE-NET-ASSETS> 6,003,370
<PER-SHARE-NAV-BEGIN> 10.00
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> 0.21
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.21
<EXPENSE-RATIO> 1.35
</TABLE>