<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the Scudder
21st Century Growth Fund Annual Report for the fiscal year ended 7/31/2000 and
is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000088048
<NAME> SCUDDER SECURITIES TRUST
<SERIES>
<NUMBER> 043
<NAME> SCUDDER 21ST CENTURY GROWTH FUND
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JUL-31-2000
<PERIOD-START> AUG-01-1999
<PERIOD-END> JUL-31-2000
<INVESTMENTS-AT-COST> 352,743
<INVESTMENTS-AT-VALUE> 358,261
<RECEIVABLES> 3,335
<ASSETS-OTHER> 9
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 361,605
<PAYABLE-FOR-SECURITIES> 4,803
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,246
<TOTAL-LIABILITIES> 6,049
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 333,133
<SHARES-COMMON-STOCK> 12,931
<SHARES-COMMON-PRIOR> 7,560
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 16,906
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5,517
<NET-ASSETS> 355,557
<DIVIDEND-INCOME> 81
<INTEREST-INCOME> 928
<OTHER-INCOME> 0
<EXPENSES-NET> 3,479
<NET-INVESTMENT-INCOME> (2,470)
<REALIZED-GAINS-CURRENT> 20,122
<APPREC-INCREASE-CURRENT> (9,951)
<NET-CHANGE-FROM-OPS> 7,701
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (4,563)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 383,733
<NUMBER-OF-SHARES-REDEEMED> 110,954
<SHARES-REINVESTED> 4,511
<NET-CHANGE-IN-ASSETS> 284,005
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 33,080
<OVERDISTRIB-NII-PRIOR> 769
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,252
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,923
<AVERAGE-NET-ASSETS> 224,413
<PER-SHARE-NAV-BEGIN> 18.48
<PER-SHARE-NII> (0.28)
<PER-SHARE-GAIN-APPREC> 9.87
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (.82)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 27.25
<EXPENSE-RATIO> 1.55
</TABLE>
