<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000894632
<NAME> PAINEWEBBER SECURITIES TRUST
<SERIES>
<NUMBER> 3
<NAME> STRATEGIC INCOME FUND CLASS C
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> NOV-30-2000
<PERIOD-START> DEC-01-1999
<PERIOD-END> MAY-31-2000
<INVESTMENTS-AT-COST> 25561
<INVESTMENTS-AT-VALUE> 23596
<RECEIVABLES> 347
<ASSETS-OTHER> 45
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 23988
<PAYABLE-FOR-SECURITIES> 1914
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 261
<TOTAL-LIABILITIES> 2175
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 27783
<SHARES-COMMON-STOCK> 2747
<SHARES-COMMON-PRIOR> 3195
<ACCUMULATED-NII-CURRENT> 120
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (4097)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (1993)
<NET-ASSETS> 21813
<DIVIDEND-INCOME> 33
<INTEREST-INCOME> 1084
<OTHER-INCOME> 0
<EXPENSES-NET> (236)
<NET-INVESTMENT-INCOME> 881
<REALIZED-GAINS-CURRENT> (1670)
<APPREC-INCREASE-CURRENT> (51)
<NET-CHANGE-FROM-OPS> (840)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (835)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 95
<NUMBER-OF-SHARES-REDEEMED> (614)
<SHARES-REINVESTED> 71
<NET-CHANGE-IN-ASSETS> (4103)
<ACCUMULATED-NII-PRIOR> 43
<ACCUMULATED-GAINS-PRIOR> (2554)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 91
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 236
<AVERAGE-NET-ASSETS> 25028
<PER-SHARE-NAV-BEGIN> 8.52
<PER-SHARE-NII> 0.31
<PER-SHARE-GAIN-APPREC> (0.61)
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 7.94
<EXPENSE-RATIO> 1.87
</TABLE>