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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000880366
<NAME> SMITH BARNEY INVESTMENT TRUST
<SERIES>
   <NUMBER> 004
   <NAME> LARGE CAPITALIZATION GROWTH FUND CLASS B

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          NOV-30-1999
<PERIOD-END>                               NOV-30-1999
<INVESTMENTS-AT-COST>                    2,471,205,237
<INVESTMENTS-AT-VALUE>                   3,409,714,188
<RECEIVABLES>                               31,399,652
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           3,441,443,840
<PAYABLE-FOR-SECURITIES>                     6,308,750
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   15,762,305
<TOTAL-LIABILITIES>                         22,071,055
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 2,474,797,719
<SHARES-COMMON-STOCK>                       72,591,730
<SHARES-COMMON-PRIOR>                       36,868,728
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      5,736,115
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   938,508,951
<NET-ASSETS>                             3,419,042,785
<DIVIDEND-INCOME>                           21,965,053
<INTEREST-INCOME>                              333,361
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              41,162,460
<NET-INVESTMENT-INCOME>                   (18,864,046)
<REALIZED-GAINS-CURRENT>                    38,286,757
<APPREC-INCREASE-CURRENT>                  686,959,103
<NET-CHANGE-FROM-OPS>                      706,381,814
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                    23,048,503
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     42,889,503
<NUMBER-OF-SHARES-REDEEMED>                  8,143,078
<SHARES-REINVESTED>                            976,603
<NET-CHANGE-IN-ASSETS>                   2,136,618,625
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   13,267,803
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       18,933,051
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             41,162,460
<AVERAGE-NET-ASSETS>                     1,268,008,736
<PER-SHARE-NAV-BEGIN>                            17.46
<PER-SHARE-NII>                                 (0.22)
<PER-SHARE-GAIN-APPREC>                           6.85
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.33
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              23.56
<EXPENSE-RATIO>                                   1.89



</TABLE>