<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001097079
<NAME> MERCURY LARGE CAP SERIES FUNDS, INC.
<SERIES>
<NUMBER> 021
<NAME> MERCURY LARGE CAP VALUE FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-START> DEC-22-1999
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 487232
<INVESTMENTS-AT-VALUE> 533165
<RECEIVABLES> 0
<ASSETS-OTHER> 81027
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 614192
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 73172
<TOTAL-LIABILITIES> 73172
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 500000
<SHARES-COMMON-STOCK> 12500
<SHARES-COMMON-PRIOR> 12500
<ACCUMULATED-NII-CURRENT> (1240)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (3673)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 45933
<NET-ASSETS> 135521
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> (2808)
<OTHER-INCOME> 0
<EXPENSES-NET> 1568
<NET-INVESTMENT-INCOME> (1240)
<REALIZED-GAINS-CURRENT> (3673)
<APPREC-INCREASE-CURRENT> 45933
<NET-CHANGE-FROM-OPS> 41020
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 41020
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 72292
<AVERAGE-NET-ASSETS> 126779
<PER-SHARE-NAV-BEGIN> 10.00
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> .84
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.84
<EXPENSE-RATIO> 43.07
</TABLE>