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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000720506
<NAME> Smith Barney Aggressive Growth Fund Inc.

<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                               Aug-31-2000
<PERIOD-END>                                    Aug-31-2000
<INVESTMENTS-AT-COST>                         2,174,957,791
<INVESTMENTS-AT-VALUE>                        4,588,235,639
<RECEIVABLES>                                    64,338,591
<ASSETS-OTHER>                                  642,486,735
<OTHER-ITEMS-ASSETS>                                      0
<TOTAL-ASSETS>                                5,295,060,965
<PAYABLE-FOR-SECURITIES>                         28,345,716
<SENIOR-LONG-TERM-DEBT>                                   0
<OTHER-ITEMS-LIABILITIES>                       672,435,646
<TOTAL-LIABILITIES>                             700,781,362
<SENIOR-EQUITY>                                           0
<PAID-IN-CAPITAL-COMMON>                      2,186,252,532
<SHARES-COMMON-STOCK>                             6,720,498
<SHARES-COMMON-PRIOR>                             2,527,898
<ACCUMULATED-NII-CURRENT>                            (3,179)
<OVERDISTRIBUTION-NII>                                    0
<ACCUMULATED-NET-GAINS>                          (5,247,598)
<OVERDISTRIBUTION-GAINS>                                  0
<ACCUM-APPREC-OR-DEPREC>                      2,413,277,848
<NET-ASSETS>                                  4,594,279,603
<DIVIDEND-INCOME>                                 4,760,384
<INTEREST-INCOME>                                 8,903,940
<OTHER-INCOME>                                            0
<EXPENSES-NET>                                   41,006,965
<NET-INVESTMENT-INCOME>                         (27,342,641)
<REALIZED-GAINS-CURRENT>                          7,883,842
<APPREC-INCREASE-CURRENT>                     1,425,251,487
<NET-CHANGE-FROM-OPS>                         1,405,792,688
<EQUALIZATION>                                            0
<DISTRIBUTIONS-OF-INCOME>                                 0
<DISTRIBUTIONS-OF-GAINS>                          2,078,185
<DISTRIBUTIONS-OTHER>                                     0
<NUMBER-OF-SHARES-SOLD>                           4,852,659
<NUMBER-OF-SHARES-REDEEMED>                         691,430
<SHARES-REINVESTED>                                  31,371
<NET-CHANGE-IN-ASSETS>                        2,929,922,191
<ACCUMULATED-NII-PRIOR>                              (2,095)
<ACCUMULATED-GAINS-PRIOR>                        14,185,313
<OVERDISTRIB-NII-PRIOR>                                   0
<OVERDIST-NET-GAINS-PRIOR>                                0
<GROSS-ADVISORY-FEES>                            22,720,867
<INTEREST-EXPENSE>                                        0
<GROSS-EXPENSE>                                  41,006,965
<AVERAGE-NET-ASSETS>                            369,119,318
<PER-SHARE-NAV-BEGIN>                                63.990
<PER-SHARE-NII>                                      (1.240)
<PER-SHARE-GAIN-APPREC>                              41.510
<PER-SHARE-DIVIDEND>                                  0.000
<PER-SHARE-DISTRIBUTIONS>                             0.720
<RETURNS-OF-CAPITAL>                                  0.000
<PER-SHARE-NAV-END>                                 110.530
<EXPENSE-RATIO>                                        1.94



</TABLE>