<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information
extracted from MML
form N-SAR for the period ended June 30, 2000
and is qualified in its entirety by reference to
such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 10
<NAME> MML OTC 100 Fund
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 10,468,459
<INVESTMENTS-AT-VALUE> 10,314,381
<RECEIVABLES> 6,700
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 10,321,081
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 18,985
<TOTAL-LIABILITIES> 18,985
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 10,465,469
<SHARES-COMMON-STOCK> 1,049,521
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> (3,890)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (5,405)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (154,078)
<NET-ASSETS> 10,302,096
<DIVIDEND-INCOME> 357
<INTEREST-INCOME> 4,558
<OTHER-INCOME> 0
<EXPENSES-NET> 8,805
<NET-INVESTMENT-INCOME> (3,890)
<REALIZED-GAINS-CURRENT> (5,405)
<APPREC-INCREASE-CURRENT> (154,078)
<NET-CHANGE-FROM-OPS> (163,373)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,050,460
<NUMBER-OF-SHARES-REDEEMED> 939
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 10,302,096
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 7,093
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 22,380
<AVERAGE-NET-ASSETS> 9,457,288
<PER-SHARE-NAV-BEGIN> 10.00
<PER-SHARE-NII> 0.00
<PER-SHARE-GAIN-APPREC> (0.18)
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.82
<EXPENSE-RATIO> 0.56
</TABLE>
