[ARTICLE] 6
[CIK] 0000701388
[NAME] CAPITAL APPRECIATION FUND
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          DEC-31-1999
[PERIOD-END]                               JUN-30-1999
[INVESTMENTS-AT-COST]                      824,907,930
[INVESTMENTS-AT-VALUE]                   1,290,640,164
[RECEIVABLES]                                  149,950
[ASSETS-OTHER]                                     661
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                           1,290,790,775
[PAYABLE-FOR-SECURITIES]                             0
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                      986,098
[TOTAL-LIABILITIES]                            986,098
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                   772,810,067
[SHARES-COMMON-STOCK]                       15,685,265
[SHARES-COMMON-PRIOR]                       12,246,916
[ACCUMULATED-NII-CURRENT]                     (49,528)
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                     51,308,369
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                   465,735,769
[NET-ASSETS]                             1,289,804,677
[DIVIDEND-INCOME]                            1,574,111
[INTEREST-INCOME]                            3,003,526
[OTHER-INCOME]                                       0
[EXPENSES-NET]                               4,609,756
[NET-INVESTMENT-INCOME]                       (32,119)
[REALIZED-GAINS-CURRENT]                    51,435,843
[APPREC-INCREASE-CURRENT]                  100,529,860
[NET-CHANGE-FROM-OPS]                      151,933,584
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                    1,059,034
[DISTRIBUTIONS-OF-GAINS]                    30,268,308
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                      3,239,048
[NUMBER-OF-SHARES-REDEEMED]                    201,099
[SHARES-REINVESTED]                            400,400
[NET-CHANGE-IN-ASSETS]                     389,943,754
[ACCUMULATED-NII-PRIOR]                      1,059,153
[ACCUMULATED-GAINS-PRIOR]                   30,123,306
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                        4,451,929
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                              4,609,756
[AVERAGE-NET-ASSETS]                     1,110,610,840
[PER-SHARE-NAV-BEGIN]                            72.74
[PER-SHARE-NII]                                 (0.02)
[PER-SHARE-GAIN-APPREC]                          11.57
[PER-SHARE-DIVIDEND]                             00.07
[PER-SHARE-DISTRIBUTIONS]                        01.99
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              82.23
[EXPENSE-RATIO]                                  00.82
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>