<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the financial statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
   <NUMBER> 012
   <NAME> NUVEEN RITTENHOUSE GROWTH FUND - CLASS B
<MULTIPLIER> 1000

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUL-31-2000
<PERIOD-START>                             AUG-01-1999
<PERIOD-END>                               JAN-31-2000
<INVESTMENTS-AT-COST>                           525069
<INVESTMENTS-AT-VALUE>                          615610
<RECEIVABLES>                                     1882
<ASSETS-OTHER>                                     544
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  618036
<PAYABLE-FOR-SECURITIES>                          8567
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                         2511
<TOTAL-LIABILITIES>                              11078
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        514389
<SHARES-COMMON-STOCK>                             9920
<SHARES-COMMON-PRIOR>                             8950
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           2028
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         90541
<NET-ASSETS>                                    606958
<DIVIDEND-INCOME>                                 2350
<INTEREST-INCOME>                                  505
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    5034
<NET-INVESTMENT-INCOME>                         (2179)
<REALIZED-GAINS-CURRENT>                          2190
<APPREC-INCREASE-CURRENT>                        53472
<NET-CHANGE-FROM-OPS>                            53483
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                            72
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           1436
<NUMBER-OF-SHARES-REDEEMED>                        467
<SHARES-REINVESTED>                                  1
<NET-CHANGE-IN-ASSETS>                           91584
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             2367
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   5034
<AVERAGE-NET-ASSETS>                            248498
<PER-SHARE-NAV-BEGIN>                            24.82
<PER-SHARE-NII>                                  (.13)
<PER-SHARE-GAIN-APPREC>                           2.61
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                        (.01)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              27.29
<EXPENSE-RATIO>                                   1.99


</TABLE>