[ARTICLE] 6
[CIK] 0000355751
[NAME] MONEY MARKET PORTFOLIO
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          DEC-31-1999
[PERIOD-END]                               JUN-30-1999
[INVESTMENTS-AT-COST]                       58,860,827
[INVESTMENTS-AT-VALUE]                      58,860,827
[RECEIVABLES]                                       65
[ASSETS-OTHER]                                   3,673
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                              58,864,565
[PAYABLE-FOR-SECURITIES]                             0
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                      186,550
[TOTAL-LIABILITIES]                            186,550
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                    58,678,015
[SHARES-COMMON-STOCK]                       58,678,015
[SHARES-COMMON-PRIOR]                       42,069,329
[ACCUMULATED-NII-CURRENT]                            0
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                              0
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                             0
[NET-ASSETS]                                58,678,015
[DIVIDEND-INCOME]                            1,247,688
[INTEREST-INCOME]                                    0
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                 101,934
[NET-INVESTMENT-INCOME]                      1,145,754
[REALIZED-GAINS-CURRENT]                          (37)
[APPREC-INCREASE-CURRENT]                            0
[NET-CHANGE-FROM-OPS]                        1,145,717
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                    1,145,717
[DISTRIBUTIONS-OF-GAINS]                             0
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                     99,238,237
[NUMBER-OF-SHARES-REDEEMED]                 83,747,390
[SHARES-REINVESTED]                          1,117,839
[NET-CHANGE-IN-ASSETS]                      16,608,686
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                            0
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                           97,368
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                137,557
[AVERAGE-NET-ASSETS]                        51,389,401
[PER-SHARE-NAV-BEGIN]                             1.00
[PER-SHARE-NII]                                   0.02
[PER-SHARE-GAIN-APPREC]                              0
[PER-SHARE-DIVIDEND]                              0.02
[PER-SHARE-DISTRIBUTIONS]                            0
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                               1.00
[EXPENSE-RATIO]                                   0.40
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>