<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000810271
<NAME> Select Growth Portfolio
<SERIES>
<NUMBER>010
<NAME>Smith Barney Investment Series
<S> <C>
<PERIOD-TYPE> Year
<FISCAL-YEAR-END> Oct-31-2001
<PERIOD-END> Oct-31-2000
<INVESTMENTS-AT-COST> 49,007,741
<INVESTMENTS-AT-VALUE> 49,420,155
<RECEIVABLES> 349,576
<ASSETS-OTHER> 777
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 49,770,508
<PAYABLE-FOR-SECURITIES> 76,314
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 63,810
<TOTAL-LIABILITIES> 140,124
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 49,557,197
<SHARES-COMMON-STOCK> 4,089,238
<SHARES-COMMON-PRIOR> 502,001
<ACCUMULATED-NII-CURRENT> 63,306
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (491,227)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 501,108
<NET-ASSETS> 49,630,384
<DIVIDEND-INCOME> 101,558
<INTEREST-INCOME> 106,443
<OTHER-INCOME> 0
<EXPENSES-NET> 143,752
<NET-INVESTMENT-INCOME> 64,249
<REALIZED-GAINS-CURRENT> (486,815)
<APPREC-INCREASE-CURRENT> 247,411
<NET-CHANGE-FROM-OPS> (175,155)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 5,012
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 4,140,876
<NUMBER-OF-SHARES-REDEEMED> 554,063
<SHARES-REINVESTED> 424
<NET-CHANGE-IN-ASSETS> 44,356,833
<ACCUMULATED-NII-PRIOR> 4,069
<ACCUMULATED-GAINS-PRIOR> (4,412)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 113,202
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 236,128
<AVERAGE-NET-ASSETS> 15,185,376
<PER-SHARE-NAV-BEGIN> 10.510
<PER-SHARE-NII> 0.050
<PER-SHARE-GAIN-APPREC> 1.590
<PER-SHARE-DIVIDEND> 0.010
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 12.140
<EXPENSE-RATIO> 0.95
</TABLE>
