WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000312586
<NAME> S&S LONG TERM INTEREST FUND
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 2575856
<INVESTMENTS-AT-VALUE> 2521854
<RECEIVABLES> 123387
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2645241
<PAYABLE-FOR-SECURITIES> 235247
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 110273
<TOTAL-LIABILITIES> 345520
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2469619
<SHARES-COMMON-STOCK> 215047
<SHARES-COMMON-PRIOR> 241582
<ACCUMULATED-NII-CURRENT> 2165
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (118061)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (54002)
<NET-ASSETS> 2299721
<DIVIDEND-INCOME> 4498
<INTEREST-INCOME> 79573
<OTHER-INCOME> (770)
<EXPENSES-NET> (1558)
<NET-INVESTMENT-INCOME> 81743
<REALIZED-GAINS-CURRENT> (60407)
<APPREC-INCREASE-CURRENT> 56759
<NET-CHANGE-FROM-OPS> 78095
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (81736)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7124
<NUMBER-OF-SHARES-REDEEMED> (40902)
<SHARES-REINVESTED> 7243
<NET-CHANGE-IN-ASSETS> (285073)
<ACCUMULATED-NII-PRIOR> 2158
<ACCUMULATED-GAINS-PRIOR> (57654)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 716
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1558
<AVERAGE-NET-ASSETS> 2357688
<PER-SHARE-NAV-BEGIN> 10.70
<PER-SHARE-NII> 0.370
<PER-SHARE-GAIN-APPREC> (0.010)
<PER-SHARE-DIVIDEND> (0.370)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.690
<EXPENSE-RATIO> 0.13
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
