<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000810271
<NAME> Select Small Cap Portfolio
<SERIES>
<NUMBER>008
<NAME>Smith Barney Investment Series
<S> <C>
<PERIOD-TYPE> Year
<FISCAL-YEAR-END> Oct-31-2001
<PERIOD-END> Oct-31-2000
<INVESTMENTS-AT-COST> 8,987,459
<INVESTMENTS-AT-VALUE> 8,887,236
<RECEIVABLES> 522,271
<ASSETS-OTHER> 216
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 9,409,723
<PAYABLE-FOR-SECURITIES> 40,438
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 34,992
<TOTAL-LIABILITIES> 75,430
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 8,947,919
<SHARES-COMMON-STOCK> 846,018
<SHARES-COMMON-PRIOR> 500,032
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 666,461
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (280,087)
<NET-ASSETS> 9,334,293
<DIVIDEND-INCOME> 17,971
<INTEREST-INCOME> 43,313
<OTHER-INCOME> 0
<EXPENSES-NET> 64,260
<NET-INVESTMENT-INCOME> (2,976)
<REALIZED-GAINS-CURRENT> 874,272
<APPREC-INCREASE-CURRENT> (422,733)
<NET-CHANGE-FROM-OPS> 448,563
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 23,683
<DISTRIBUTIONS-OF-GAINS> 1,386
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 847,622
<NUMBER-OF-SHARES-REDEEMED> 503,679
<SHARES-REINVESTED> 2,043
<NET-CHANGE-IN-ASSETS> 4,371,550
<ACCUMULATED-NII-PRIOR> 23,683
<ACCUMULATED-GAINS-PRIOR> (203,449)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 47,934
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 135,632
<AVERAGE-NET-ASSETS> 6,374,804
<PER-SHARE-NAV-BEGIN> 9.920
<PER-SHARE-NII> (0.010)
<PER-SHARE-GAIN-APPREC> 1.170
<PER-SHARE-DIVIDEND> 0.050
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 11.030
<EXPENSE-RATIO> 1.00
</TABLE>
