<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the Scudder
Development Fund Annual Report for the fiscal year ended 07/31/2000 and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000088048
<NAME> SCUDDER SECURITIES TRUST
<SERIES>
<NUMBER> 010
<NAME> SCUDDER DEVELOPMENT 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> 582,774
<INVESTMENTS-AT-VALUE> 813,207
<RECEIVABLES> 20,570
<ASSETS-OTHER> 5
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 833,814
<PAYABLE-FOR-SECURITIES> 2,367
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4,665
<TOTAL-LIABILITIES> 7,032
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 496,607
<SHARES-COMMON-STOCK> 18,405
<SHARES-COMMON-PRIOR> 17,788
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 100,984
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 229,190
<NET-ASSETS> 826,781
<DIVIDEND-INCOME> 1,138
<INTEREST-INCOME> 2,437
<OTHER-INCOME> 0
<EXPENSES-NET> 11,224
<NET-INVESTMENT-INCOME> (7,650)
<REALIZED-GAINS-CURRENT> 178,798
<APPREC-INCREASE-CURRENT> 27,799
<NET-CHANGE-FROM-OPS> 198,948
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (113,694)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 890,419
<NUMBER-OF-SHARES-REDEEMED> (971,631)
<SHARES-REINVESTED> 106,661
<NET-CHANGE-IN-ASSETS> 110,703
<ACCUMULATED-NII-PRIOR> (699)
<ACCUMULATED-GAINS-PRIOR> 156,026
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 7,884
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 11,280
<AVERAGE-NET-ASSETS> 802,728
<PER-SHARE-NAV-BEGIN> 40.26
<PER-SHARE-NII> (0.42)
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 11.58
<PER-SHARE-DISTRIBUTIONS> (6.50)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 44.92
<EXPENSE-RATIO> 1.40
</TABLE>
