WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000355747
<NAME> SMITH BARNEY INVESTMENT FUNDS, INC.
<SERIES>
   <NUMBER> 2
   <NAME> SMITH BARNEY SMALL CAP GROWTH - CLASS A

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-2000
<PERIOD-END>                               MAR-31-2000
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<INVESTMENTS-AT-VALUE>                     254,001,574
<RECEIVABLES>                                9,393,911
<ASSETS-OTHER>                                     979
<OTHER-ITEMS-ASSETS>                                 0
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<PAYABLE-FOR-SECURITIES>                    11,511,637
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      311,639
<TOTAL-LIABILITIES>                         11,823,276
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   240,596,378
<SHARES-COMMON-STOCK>                        2,666,987
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                    (571,834)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (5,607,063)
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<DIVIDEND-INCOME>                                6,276
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<OTHER-INCOME>                                       0
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<NET-CHANGE-FROM-OPS>                       11,026,706
<EQUALIZATION>                                       0
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<DISTRIBUTIONS-OF-GAINS>                             0
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<EXPENSE-RATIO>                                   1.34


</TABLE>