<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000892538
<NAME> SUNAMERICA SERIES TRUST
<SERIES>
<NUMBER> 006
<NAME> SUNAMERICA SERIES TRUST HIGH-YIELD BOND PORTFOLIO
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2001
<PERIOD-START> FEB-01-2000
<PERIOD-END> JUL-31-2000
<INVESTMENTS-AT-COST> 333,239,611
<INVESTMENTS-AT-VALUE> 295,958,926
<RECEIVABLES> 16,833,603
<ASSETS-OTHER> 3,855
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 312,796,384
<PAYABLE-FOR-SECURITIES> 4,096,815
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8,370,620
<TOTAL-LIABILITIES> 12,467,435
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 314,044,917
<SHARES-COMMON-STOCK> 28,466,619
<SHARES-COMMON-PRIOR> 29,405,569
<ACCUMULATED-NII-CURRENT> 47,354,012
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (23,789,295)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (37,280,685)
<NET-ASSETS> 300,328,949
<DIVIDEND-INCOME> 568,173
<INTEREST-INCOME> 16,901,900
<OTHER-INCOME> 0
<EXPENSES-NET> 1,054,243
<NET-INVESTMENT-INCOME> 16,415,830
<REALIZED-GAINS-CURRENT> (6,677,764)
<APPREC-INCREASE-CURRENT> (9,097,253)
<NET-CHANGE-FROM-OPS> 640,813
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7,725,964
<NUMBER-OF-SHARES-REDEEMED> (8,664,914)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (9,703,128)
<ACCUMULATED-NII-PRIOR> 30,938,182
<ACCUMULATED-GAINS-PRIOR> (17,111,531)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 950,732
<INTEREST-EXPENSE> 6,612
<GROSS-EXPENSE> 1,063,425
<AVERAGE-NET-ASSETS> 306,711,118
<PER-SHARE-NAV-BEGIN> 10.54
<PER-SHARE-NII> 0.57
<PER-SHARE-GAIN-APPREC> (0.56)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.55
<EXPENSE-RATIO> 0.69
</TABLE>
