<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 1
<NAME> JNL/JANUS AGGRESSIVE GROWTH SERIES
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 712600
<INVESTMENTS-AT-VALUE> 838195
<RECEIVABLES> 9617
<ASSETS-OTHER> 8
<OTHER-ITEMS-ASSETS> 27135
<TOTAL-ASSETS> 874955
<PAYABLE-FOR-SECURITIES> 258
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 29060
<TOTAL-LIABILITIES> 29318
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 610240
<SHARES-COMMON-STOCK> 21739
<SHARES-COMMON-PRIOR> 16374
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 418
<ACCUMULATED-NET-GAINS> 110144
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 125671
<NET-ASSETS> 845637
<DIVIDEND-INCOME> 888
<INTEREST-INCOME> 2841
<OTHER-INCOME> 132
<EXPENSES-NET> 3805
<NET-INVESTMENT-INCOME> 56
<REALIZED-GAINS-CURRENT> 70497
<APPREC-INCREASE-CURRENT> (101580)
<NET-CHANGE-FROM-OPS> (31027)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 11616
<NUMBER-OF-SHARES-REDEEMED> 6251
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 191091
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 39647
<OVERDISTRIB-NII-PRIOR> 474
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 3416
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3805
<AVERAGE-NET-ASSETS> 774954
<PER-SHARE-NAV-BEGIN> 39.97
<PER-SHARE-NII> .01
<PER-SHARE-GAIN-APPREC> (1.08)
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 38.90
<EXPENSE-RATIO> .98
</TABLE>