<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000918572
<NAME> STATE STREET RESEARCH SECURITIES TRUST
<SERIES>
<NUMBER> 022
<NAME> STATE STREET RESEARCH STRATEGIC INCOME FUND CLASS B
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> APR-30-2000
<PERIOD-END> APR-30-2000
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<INVESTMENTS-AT-VALUE> 90,163,317
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<PAYABLE-FOR-SECURITIES> 5,991,654
<SENIOR-LONG-TERM-DEBT> 0
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<TOTAL-LIABILITIES> 11,413,116
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 97,301,201
<SHARES-COMMON-STOCK> 4,876,704
<SHARES-COMMON-PRIOR> 6,423,079
<ACCUMULATED-NII-CURRENT> 119,085
<OVERDISTRIBUTION-NII> 0
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<ACCUM-APPREC-OR-DEPREC> (8,758,927)
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<OTHER-INCOME> 0
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<REALIZED-GAINS-CURRENT> (3,303,161)
<APPREC-INCREASE-CURRENT> (6,363,477)
<NET-CHANGE-FROM-OPS> (2,858,405)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,474,869)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 302,152
<NUMBER-OF-SHARES-REDEEMED> (2,105,254)
<SHARES-REINVESTED> 256,727
<NET-CHANGE-IN-ASSETS> 28,412,588
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<PER-SHARE-NAV-BEGIN> 6.87
<PER-SHARE-NII> 0.43
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<EXPENSE-RATIO> 2.34
</TABLE>
