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<PAGE> PAGE 21
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<PAGE> PAGE 22
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<PAGE> PAGE 23
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<PAGE> PAGE 24
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<PAGE> PAGE 25
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<PAGE> PAGE 26
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<PAGE> PAGE 27
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<PAGE> PAGE 28
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<PAGE> PAGE 29
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<PAGE> PAGE 30
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<PAGE> PAGE 31
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024 000800 Y
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<PAGE> PAGE 32
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<PAGE> PAGE 33
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<PAGE> PAGE 34
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<PAGE> PAGE 35
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<PAGE> PAGE 36
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<PAGE> PAGE 37
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<PAGE> PAGE 38
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<PAGE> PAGE 39
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<PAGE> PAGE 40
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<PAGE> PAGE 41
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048 I021000 0.000
048 J011000 0
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048 K011000 0
048 K021000 0.000
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050 001000 N
051 001000 N
052 001000 Y
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058 A001000 N
059 001000 Y
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<PAGE> PAGE 42
062 O001000 0.0
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066 A001000 Y
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068 A001000 N
068 B001000 N
069 001000 N
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070 A021000 Y
070 B011000 Y
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070 C021000 N
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070 D021000 N
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070 E021000 N
070 F011000 Y
070 F021000 N
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070 G021000 N
070 H011000 Y
070 H021000 N
070 I011000 Y
070 I021000 N
070 J011000 Y
070 J021000 N
070 K011000 Y
070 K021000 N
070 L011000 Y
070 L021000 N
070 M011000 Y
070 M021000 N
070 N011000 Y
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070 P011000 N
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070 Q021000 N
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<PAGE> PAGE 43
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<PAGE> PAGE 44
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076 001000 0.00
024 001100 Y
025 A001101 CHARLES SCHWAB CORP.
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<PAGE> PAGE 45
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045 001100 Y
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048 H021100 0.000
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048 K021100 0.000
049 001100 N
050 001100 N
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052 001100 Y
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058 A001100 N
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060 A001100 Y
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<PAGE> PAGE 46
062 F001100 0.0
062 G001100 0.0
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062 P001100 0.0
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063 B001100 0.0
066 A001100 Y
066 E001100 Y
067 001100 N
068 A001100 N
068 B001100 N
069 001100 N
070 A011100 Y
070 A021100 Y
070 B011100 Y
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070 C011100 Y
070 C021100 N
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070 D021100 N
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070 G021100 N
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<PAGE> PAGE 47
070 P011100 N
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<PAGE> PAGE 48
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024 001200 Y
025 A001201 CHARLES SCHWAB CORP.
025 B001201 94-1737782
025 C001201 E
025 D001201 159
025 A001202 DONALDSON, LUFKIN, & JENRETTE
025 B001202 13-2741729
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<PAGE> PAGE 49
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045 001200 Y
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<PAGE> PAGE 50
052 001200 Y
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066 A001200 Y
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<PAGE> PAGE 51
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<PAGE> PAGE 52
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SIGNATURE ANITA E. FALICIA
TITLE ASST. TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
[TYPE] EX-27
[DESCRIPTION] FDS JANUS ASPEN GROWTH PORT.-INST.
[TEXT]
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 101
<NAME> JANUS ASPEN GROWTH PORT. INST.
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<CURRENCY> U.S. Dollars
<S> <C>
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[AVG-DEBT-OUTSTANDING] 0
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 102
<NAME> JANUS ASPEN GROWTH PORT. RET.
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<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 201
<NAME> Janus Aspen Aggressive Growth Port. Inst.
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<CURRENCY> U.S. Dollars
<S> <C>
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<ACCUMULATED-NII-PRIOR> (6)
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[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 202
<NAME> Janus Aspen Aggressive Growth Port. Ret.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
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<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 990,324
<INVESTMENTS-AT-VALUE> 1,372,297
<RECEIVABLES> 23,542
<ASSETS-OTHER> 116
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,395,955
<PAYABLE-FOR-SECURITIES> 46,211
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,389
<TOTAL-LIABILITIES> 48,600
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 839,237
<SHARES-COMMON-STOCK> 100
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> (2,602)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 128,749
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 381,971
<NET-ASSETS> 3,438
<DIVIDEND-INCOME> 484
<INTEREST-INCOME> 591
<OTHER-INCOME> 0
<EXPENSES-NET> 3,671
<NET-INVESTMENT-INCOME> (2,596)
<REALIZED-GAINS-CURRENT> 130,792
<APPREC-INCREASE-CURRENT> 134,378
<NET-CHANGE-FROM-OPS> 262,574
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (52,162)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 107
<NUMBER-OF-SHARES-REDEEMED> (11)
<SHARES-REINVESTED> 4
<NET-CHANGE-IN-ASSETS> 574,395
<ACCUMULATED-NII-PRIOR> (6)
<ACCUMULATED-GAINS-PRIOR> 50,119
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 3,532
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,682
<AVERAGE-NET-ASSETS> 1,275
<PER-SHARE-NAV-BEGIN> 27.420
<PER-SHARE-NII> 0.120
<PER-SHARE-GAIN-APPREC> 8.100
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> (1.400)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 34.240
<EXPENSE-RATIO> 1.240
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 111
<NAME> JANUS ASPEN CAPITAL APPR. PORT. INST.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 221,649
<INVESTMENTS-AT-VALUE> 255,409
<RECEIVABLES> 2,814
<ASSETS-OTHER> 10
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 258,233
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 132
<TOTAL-LIABILITIES> 132
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 216,485
<SHARES-COMMON-STOCK> 10,221
<SHARES-COMMON-PRIOR> 3,720
<ACCUMULATED-NII-CURRENT> 36
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 7,821
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 33,759
<NET-ASSETS> 255,616
<DIVIDEND-INCOME> 181
<INTEREST-INCOME> 889
<OTHER-INCOME> 0
<EXPENSES-NET> 561
<NET-INVESTMENT-INCOME> 509
<REALIZED-GAINS-CURRENT> 11,768
<APPREC-INCREASE-CURRENT> 13,587
<NET-CHANGE-FROM-OPS> 25,864
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (507)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7,615
<NUMBER-OF-SHARES-REDEEMED> (1,135)
<SHARES-REINVESTED> 21
<NET-CHANGE-IN-ASSETS> 183,894
<ACCUMULATED-NII-PRIOR> 34
<ACCUMULATED-GAINS-PRIOR> (3,947)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 505
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 562
<AVERAGE-NET-ASSETS> 152,409
<PER-SHARE-NAV-BEGIN> 19.940
<PER-SHARE-NII> 0.050
<PER-SHARE-GAIN-APPREC> 5.070
<PER-SHARE-DIVIDEND> (0.050)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 25.010
<EXPENSE-RATIO> 0.740
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 112
<NAME> JANUS ASPEN CAPITAL APPR. PORT. RET.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 221,649
<INVESTMENTS-AT-VALUE> 255,409
<RECEIVABLES> 2,814
<ASSETS-OTHER> 10
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 258,233
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 132
<TOTAL-LIABILITIES> 132
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 216,485
<SHARES-COMMON-STOCK> 100
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 36
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 7,821
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 33,759
<NET-ASSETS> 2,485
<DIVIDEND-INCOME> 181
<INTEREST-INCOME> 889
<OTHER-INCOME> 0
<EXPENSES-NET> 561
<NET-INVESTMENT-INCOME> 509
<REALIZED-GAINS-CURRENT> 11,768
<APPREC-INCREASE-CURRENT> 13,587
<NET-CHANGE-FROM-OPS> 25,864
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (507)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 130
<NUMBER-OF-SHARES-REDEEMED> (31)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 183,894
<ACCUMULATED-NII-PRIOR> 34
<ACCUMULATED-GAINS-PRIOR> (3,947)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 505
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 562
<AVERAGE-NET-ASSETS> 870
<PER-SHARE-NAV-BEGIN> 19.860
<PER-SHARE-NII> (0.070)
<PER-SHARE-GAIN-APPREC> 5.110
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 24.900
<EXPENSE-RATIO> 1.170
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 701
<NAME> JANUS ASPEN INTERNATIONAL PORT. INST.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 316,865
<INVESTMENTS-AT-VALUE> 401,131
<RECEIVABLES> 9,282
<ASSETS-OTHER> 4,351
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 414,764
<PAYABLE-FOR-SECURITIES> 9,978
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 317
<TOTAL-LIABILITIES> 10,295
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 333,068
<SHARES-COMMON-STOCK> 17,225
<SHARES-COMMON-PRIOR> 14,623
<ACCUMULATED-NII-CURRENT> 60
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (17,059)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 88,400
<NET-ASSETS> 402,260
<DIVIDEND-INCOME> 1,795
<INTEREST-INCOME> 577
<OTHER-INCOME> 0
<EXPENSES-NET> 1,407
<NET-INVESTMENT-INCOME> 965
<REALIZED-GAINS-CURRENT> 827
<APPREC-INCREASE-CURRENT> 32,723
<NET-CHANGE-FROM-OPS> 34,515
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,019)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 6,642
<NUMBER-OF-SHARES-REDEEMED> (4,084)
<SHARES-REINVESTED> 44
<NET-CHANGE-IN-ASSETS> 93,342
<ACCUMULATED-NII-PRIOR> 114
<ACCUMULATED-GAINS-PRIOR> (17,886)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,135
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,409
<AVERAGE-NET-ASSETS> 346,401
<PER-SHARE-NAV-BEGIN> 21.270
<PER-SHARE-NII> 0.060
<PER-SHARE-GAIN-APPREC> 2.080
<PER-SHARE-DIVIDEND> (0.060)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 23.350
<EXPENSE-RATIO> 0.820
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30,1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 702
<NAME> JANUS ASPEN INTERNATIONAL PORT. RET.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 316,865
<INVESTMENTS-AT-VALUE> 401,131
<RECEIVABLES> 9,282
<ASSETS-OTHER> 4,351
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 414,764
<PAYABLE-FOR-SECURITIES> 9,978
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 317
<TOTAL-LIABILITIES> 10,295
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 333,068
<SHARES-COMMON-STOCK> 95
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 60
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (17,059)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 88,400
<NET-ASSETS> 2,209
<DIVIDEND-INCOME> 1,795
<INTEREST-INCOME> 577
<OTHER-INCOME> 0
<EXPENSES-NET> 1,407
<NET-INVESTMENT-INCOME> 965
<REALIZED-GAINS-CURRENT> 827
<APPREC-INCREASE-CURRENT> 32,723
<NET-CHANGE-FROM-OPS> 34,515
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,019)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 98
<NUMBER-OF-SHARES-REDEEMED> (4)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 93342
<ACCUMULATED-NII-PRIOR> 114
<ACCUMULATED-GAINS-PRIOR> (17,886)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,135
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,409
<AVERAGE-NET-ASSETS> 796
<PER-SHARE-NAV-BEGIN> 21.270
<PER-SHARE-NII> 0.040
<PER-SHARE-GAIN-APPREC> 2.040
<PER-SHARE-DIVIDEND> (0.010)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 23.340
<EXPENSE-RATIO> 1.300
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 301
<NAME> Janus Aspen Worldwide Growth Port. Inst.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 2,674,787
<INVESTMENTS-AT-VALUE> 3,751,954
<RECEIVABLES> 51,966
<ASSETS-OTHER> 28,961
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 3,832,881
<PAYABLE-FOR-SECURITIES> 45,988
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,502
<TOTAL-LIABILITIES> 48,490
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,706,645
<SHARES-COMMON-STOCK> 114,457
<SHARES-COMMON-PRIOR> 99,373
<ACCUMULATED-NII-CURRENT> 330
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (28,195)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 1,105,611
<NET-ASSETS> 3,747,671
<DIVIDEND-INCOME> 14,829
<INTEREST-INCOME> 3,720
<OTHER-INCOME> 0
<EXPENSES-NET> 11,800
<NET-INVESTMENT-INCOME> 6,749
<REALIZED-GAINS-CURRENT> 58,594
<APPREC-INCREASE-CURRENT> 332,348
<NET-CHANGE-FROM-OPS> 397,691
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6,818)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 25,612
<NUMBER-OF-SHARES-REDEEMED> (10,737)
<SHARES-REINVESTED> 209
<NET-CHANGE-IN-ASSETS> 888,179
<ACCUMULATED-NII-PRIOR> 400
<ACCUMULATED-GAINS-PRIOR> (86,790)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 10,645
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 11,805
<AVERAGE-NET-ASSETS> 3,270,797
<PER-SHARE-NAV-BEGIN> 29.090
<PER-SHARE-NII> 0.060
<PER-SHARE-GAIN-APPREC> 3.650
<PER-SHARE-DIVIDEND> (0.060)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 32.740
<EXPENSE-RATIO> 0.840
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 302
<NAME> Janus Aspen Worldwide Growth Port. Ret.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 2,674,787
<INVESTMENTS-AT-VALUE> 3,751,954
<RECEIVABLES> 51,966
<ASSETS-OTHER> 28,961
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 3,832,881
<PAYABLE-FOR-SECURITIES> 45,988
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,502
<TOTAL-LIABILITIES> 48,490
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,706,645
<SHARES-COMMON-STOCK> 1,123
<SHARES-COMMON-PRIOR> 201
<ACCUMULATED-NII-CURRENT> 330
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (28,195)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 1,105,611
<NET-ASSETS> 36,720
<DIVIDEND-INCOME> 14,829
<INTEREST-INCOME> 3,720
<OTHER-INCOME> 0
<EXPENSES-NET> 11,800
<NET-INVESTMENT-INCOME> 6,749
<REALIZED-GAINS-CURRENT> 58,594
<APPREC-INCREASE-CURRENT> 332,348
<NET-CHANGE-FROM-OPS> 397,691
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6,818)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 979
<NUMBER-OF-SHARES-REDEEMED> (57)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 888,179
<ACCUMULATED-NII-PRIOR> 400
<ACCUMULATED-GAINS-PRIOR> (86,790)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 10,645
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 11,805
<AVERAGE-NET-ASSETS> 20,029
<PER-SHARE-NAV-BEGIN> 29.060
<PER-SHARE-NII> 0.010
<PER-SHARE-GAIN-APPREC> 3.630
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 32.700
<EXPENSE-RATIO> 1.380
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 401
<NAME> JANUS ASPEN BALANCED PORT. INST.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 1,403,730
<INVESTMENTS-AT-VALUE> 1,625,707
<RECEIVABLES> 32,023
<ASSETS-OTHER> 212
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,657,942
<PAYABLE-FOR-SECURITIES> 83,853
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 905
<TOTAL-LIABILITIES> 84,758
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,264,717
<SHARES-COMMON-STOCK> 62,012
<SHARES-COMMON-PRIOR> 39,226
<ACCUMULATED-NII-CURRENT> 266
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 86,092
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 222,109
<NET-ASSETS> 1,547,411
<DIVIDEND-INCOME> 3,740
<INTEREST-INCOME> 16,338
<OTHER-INCOME> 0
<EXPENSES-NET> 4,247
<NET-INVESTMENT-INCOME> 15,831
<REALIZED-GAINS-CURRENT> 87,314
<APPREC-INCREASE-CURRENT> 27,493
<NET-CHANGE-FROM-OPS> 130,638
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (16,092)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 23,247
<NUMBER-OF-SHARES-REDEEMED> (1,108)
<SHARES-REINVESTED> 647
<NET-CHANGE-IN-ASSETS> 673,427
<ACCUMULATED-NII-PRIOR> 527
<ACCUMULATED-GAINS-PRIOR> (1,222)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 4,073
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4,260
<AVERAGE-NET-ASSETS> 1,191,109
<PER-SHARE-NAV-BEGIN> 22.500
<PER-SHARE-NII> 0.250
<PER-SHARE-GAIN-APPREC> 2.460
<PER-SHARE-DIVIDEND> (0.260)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 24.950
<EXPENSE-RATIO> 0.700
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 402
<NAME> JANUS ASPEN BALANCED PORT. RET.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 1,403,730
<INVESTMENTS-AT-VALUE> 1,625,707
<RECEIVABLES> 32,023
<ASSETS-OTHER> 212
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,657,942
<PAYABLE-FOR-SECURITIES> 83,853
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 905
<TOTAL-LIABILITIES> 84,758
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,264,717
<SHARES-COMMON-STOCK> 1,029
<SHARES-COMMON-PRIOR> 764
<ACCUMULATED-NII-CURRENT> 266
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 86,092
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 222,109
<NET-ASSETS> 25,773
<DIVIDEND-INCOME> 3,740
<INTEREST-INCOME> 16,338
<OTHER-INCOME> 0
<EXPENSES-NET> 4,247
<NET-INVESTMENT-INCOME> 15,831
<REALIZED-GAINS-CURRENT> 87,314
<APPREC-INCREASE-CURRENT> 27,493
<NET-CHANGE-FROM-OPS> 130,638
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (16,092)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 368
<NUMBER-OF-SHARES-REDEEMED> (111)
<SHARES-REINVESTED> 9
<NET-CHANGE-IN-ASSETS> 673,427
<ACCUMULATED-NII-PRIOR> 527
<ACCUMULATED-GAINS-PRIOR> (1,222)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 4,073
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4,260
<AVERAGE-NET-ASSETS> 21,255
<PER-SHARE-NAV-BEGIN> 22.590
<PER-SHARE-NII> 0.220
<PER-SHARE-GAIN-APPREC> 2.450
<PER-SHARE-DIVIDEND> (0.220)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 25.040
<EXPENSE-RATIO> 1.200
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 121
<NAME> JANUS ASPEN EQUITY INC. PORT. INST.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 12,557
<INVESTMENTS-AT-VALUE> 16,072
<RECEIVABLES> 322
<ASSETS-OTHER> 1
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 16,395
<PAYABLE-FOR-SECURITIES> 143
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 47
<TOTAL-LIABILITIES> 190
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 11,662
<SHARES-COMMON-STOCK> 696
<SHARES-COMMON-PRIOR> 465
<ACCUMULATED-NII-CURRENT> 5
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,023
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3,515
<NET-ASSETS> 16,175
<DIVIDEND-INCOME> 51
<INTEREST-INCOME> 35
<OTHER-INCOME> 0
<EXPENSES-NET> 76
<NET-INVESTMENT-INCOME> 10
<REALIZED-GAINS-CURRENT> 1,023
<APPREC-INCREASE-CURRENT> 1,138
<NET-CHANGE-FROM-OPS> 2,171
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (10)
<DISTRIBUTIONS-OF-GAINS> (59)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 271
<NUMBER-OF-SHARES-REDEEMED> (43)
<SHARES-REINVESTED> 3
<NET-CHANGE-IN-ASSETS> 7,168
<ACCUMULATED-NII-PRIOR> 5
<ACCUMULATED-GAINS-PRIOR> 59
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 44
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 100
<AVERAGE-NET-ASSETS> 12,120
<PER-SHARE-NAV-BEGIN> 19.410
<PER-SHARE-NII> 0.020
<PER-SHARE-GAIN-APPREC> 3.900
<PER-SHARE-DIVIDEND> (0.020)
<PER-SHARE-DISTRIBUTIONS> (0.080)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 23.230
<EXPENSE-RATIO> 1.250
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 122
<NAME> JANUS ASPEN EQUITY INC. PORT. RET.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 12,557
<INVESTMENTS-AT-VALUE> 16,072
<RECEIVABLES> 322
<ASSETS-OTHER> 1
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 16,395
<PAYABLE-FOR-SECURITIES> 143
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 47
<TOTAL-LIABILITIES> 190
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 11,662
<SHARES-COMMON-STOCK> 1
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 5
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,023
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3,515
<NET-ASSETS> 30
<DIVIDEND-INCOME> 51
<INTEREST-INCOME> 35
<OTHER-INCOME> 0
<EXPENSES-NET> 76
<NET-INVESTMENT-INCOME> 10
<REALIZED-GAINS-CURRENT> 1,023
<APPREC-INCREASE-CURRENT> 1,138
<NET-CHANGE-FROM-OPS> 2,171
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (10)
<DISTRIBUTIONS-OF-GAINS> (59)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 7,168
<ACCUMULATED-NII-PRIOR> 5
<ACCUMULATED-GAINS-PRIOR> 59
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 44
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 100
<AVERAGE-NET-ASSETS> 22
<PER-SHARE-NAV-BEGIN> 19.280
<PER-SHARE-NII> (0.010)
<PER-SHARE-GAIN-APPREC> 3.850
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> (0.090)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 23.030
<EXPENSE-RATIO> 1.760
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 123
<NAME> JANUS ASPEN GROWTH AND INCOME PORT. INST.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 23,254
<INVESTMENTS-AT-VALUE> 25,960
<RECEIVABLES> 77
<ASSETS-OTHER> 8
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 26,045
<PAYABLE-FOR-SECURITIES> 777
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 45
<TOTAL-LIABILITIES> 822
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 22,195
<SHARES-COMMON-STOCK> 1,652
<SHARES-COMMON-PRIOR> 536
<ACCUMULATED-NII-CURRENT> 3
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 318
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2,707
<NET-ASSETS> 23,827
<DIVIDEND-INCOME> 29
<INTEREST-INCOME> 70
<OTHER-INCOME> 0
<EXPENSES-NET> 82
<NET-INVESTMENT-INCOME> 17
<REALIZED-GAINS-CURRENT> 437
<APPREC-INCREASE-CURRENT> 1,702
<NET-CHANGE-FROM-OPS> 2,156
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (16)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,225
<NUMBER-OF-SHARES-REDEEMED> (110)
<SHARES-REINVESTED> 1
<NET-CHANGE-IN-ASSETS> 18,798
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> (119)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 42
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 94
<AVERAGE-NET-ASSETS> 12,476
<PER-SHARE-NAV-BEGIN> 11.960
<PER-SHARE-NII> 0.010
<PER-SHARE-GAIN-APPREC> 2.460
<PER-SHARE-DIVIDEND> (0.010)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 14.420
<EXPENSE-RATIO> 1.250
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 124
<NAME> JANUS ASPEN GROWTH AND INCOME PORT. RET.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 23,254
<INVESTMENTS-AT-VALUE> 25,960
<RECEIVABLES> 77
<ASSETS-OTHER> 8
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 26,045
<PAYABLE-FOR-SECURITIES> 777
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 45
<TOTAL-LIABILITIES> 822
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 22,195
<SHARES-COMMON-STOCK> 97
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 3
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 318
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2,707
<NET-ASSETS> 1,396
<DIVIDEND-INCOME> 29
<INTEREST-INCOME> 70
<OTHER-INCOME> 0
<EXPENSES-NET> 82
<NET-INVESTMENT-INCOME> 17
<REALIZED-GAINS-CURRENT> 437
<APPREC-INCREASE-CURRENT> 1,702
<NET-CHANGE-FROM-OPS> 2,156
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (16)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 145
<NUMBER-OF-SHARES-REDEEMED> (49)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 18,798
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> (119)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 42
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 94
<AVERAGE-NET-ASSETS> 485
<PER-SHARE-NAV-BEGIN> 11.940
<PER-SHARE-NII> (0.020)
<PER-SHARE-GAIN-APPREC> 2.450
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 14.370
<EXPENSE-RATIO> 1.750
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 501
<NAME> JANUS ASPEN FLEXIBLE INCOME PORT. INST.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 169,728
<INVESTMENTS-AT-VALUE> 165,862
<RECEIVABLES> 3,160
<ASSETS-OTHER> 177
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 169,199
<PAYABLE-FOR-SECURITIES> 6,834
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,199
<TOTAL-LIABILITIES> 8,033
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 164,509
<SHARES-COMMON-STOCK> 13,925
<SHARES-COMMON-PRIOR> 10,750
<ACCUMULATED-NII-CURRENT> 174
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 389
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (3,906)
<NET-ASSETS> 160,952
<DIVIDEND-INCOME> 66
<INTEREST-INCOME> 5,200
<OTHER-INCOME> 0
<EXPENSES-NET> 550
<NET-INVESTMENT-INCOME> 4,716
<REALIZED-GAINS-CURRENT> 469
<APPREC-INCREASE-CURRENT> (6,285)
<NET-CHANGE-FROM-OPS> (1,100)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (4,711)
<DISTRIBUTIONS-OF-GAINS> (977)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 4,112
<NUMBER-OF-SHARES-REDEEMED> (1,430)
<SHARES-REINVESTED> 493
<NET-CHANGE-IN-ASSETS> 31,572
<ACCUMULATED-NII-PRIOR> 169
<ACCUMULATED-GAINS-PRIOR> 897
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 473
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 553
<AVERAGE-NET-ASSETS> 146,696
<PER-SHARE-NAV-BEGIN> 12.050
<PER-SHARE-NII> 0.350
<PER-SHARE-GAIN-APPREC> (0.420)
<PER-SHARE-DIVIDEND> (0.350)
<PER-SHARE-DISTRIBUTIONS> (0.070)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 11.560
<EXPENSE-RATIO> 0.760
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 502
<NAME> JANUS ASPEN FLEXIBLE INCOME PORT. RET.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 169,728
<INVESTMENTS-AT-VALUE> 165,862
<RECEIVABLES> 3,160
<ASSETS-OTHER> 177
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 169,199
<PAYABLE-FOR-SECURITIES> 6,834
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,199
<TOTAL-LIABILITIES> 8,033
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 164,509
<SHARES-COMMON-STOCK> 18
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 174
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 389
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (3,906)
<NET-ASSETS> 214
<DIVIDEND-INCOME> 66
<INTEREST-INCOME> 5,200
<OTHER-INCOME> 0
<EXPENSES-NET> 550
<NET-INVESTMENT-INCOME> 4,716
<REALIZED-GAINS-CURRENT> 469
<APPREC-INCREASE-CURRENT> (6,285)
<NET-CHANGE-FROM-OPS> (1,100)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (4,711)
<DISTRIBUTIONS-OF-GAINS> (977)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 17
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 31,572
<ACCUMULATED-NII-PRIOR> 169
<ACCUMULATED-GAINS-PRIOR> 897
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 473
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 553
<AVERAGE-NET-ASSETS> 110
<PER-SHARE-NAV-BEGIN> 12.050
<PER-SHARE-NII> 0.190
<PER-SHARE-GAIN-APPREC> (0.320)
<PER-SHARE-DIVIDEND> (0.180)
<PER-SHARE-DISTRIBUTIONS> (0.070)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 11.670
<EXPENSE-RATIO> 1.240
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 901
<NAME> JANUS ASPEN HIGH-YIELD PORT. INST.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 2,656
<INVESTMENTS-AT-VALUE> 2,543
<RECEIVABLES> 63
<ASSETS-OTHER> 29
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2,635
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 81
<TOTAL-LIABILITIES> 81
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,662
<SHARES-COMMON-STOCK> 235
<SHARES-COMMON-PRIOR> 274
<ACCUMULATED-NII-CURRENT> 1
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 4
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (113)
<NET-ASSETS> 2,542
<DIVIDEND-INCOME> 1
<INTEREST-INCOME> 127
<OTHER-INCOME> 0
<EXPENSES-NET> 15
<NET-INVESTMENT-INCOME> 113
<REALIZED-GAINS-CURRENT> 55
<APPREC-INCREASE-CURRENT> (37)
<NET-CHANGE-FROM-OPS> 131
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (120)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 83
<NUMBER-OF-SHARES-REDEEMED> (133)
<SHARES-REINVESTED> 11
<NET-CHANGE-IN-ASSETS> (434)
<ACCUMULATED-NII-PRIOR> 8
<ACCUMULATED-GAINS-PRIOR> (50)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 11
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 77
<AVERAGE-NET-ASSETS> 2,887
<PER-SHARE-NAV-BEGIN> 10.850
<PER-SHARE-NII> 0.510
<PER-SHARE-GAIN-APPREC> 0.010
<PER-SHARE-DIVIDEND> (0.530)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.840
<EXPENSE-RATIO> 1.000
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's Semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 902
<NAME> JANUS ASPEN HIGH-YIELD PORT. RET.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 2,656
<INVESTMENTS-AT-VALUE> 2,543
<RECEIVABLES> 63
<ASSETS-OTHER> 29
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2,635
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 81
<TOTAL-LIABILITIES> 81
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,662
<SHARES-COMMON-STOCK> 1
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 1
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 4
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (113)
<NET-ASSETS> 12
<DIVIDEND-INCOME> 1
<INTEREST-INCOME> 127
<OTHER-INCOME> 0
<EXPENSES-NET> 15
<NET-INVESTMENT-INCOME> 113
<REALIZED-GAINS-CURRENT> 55
<APPREC-INCREASE-CURRENT> (37)
<NET-CHANGE-FROM-OPS> 131
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (120)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (434)
<ACCUMULATED-NII-PRIOR> 8
<ACCUMULATED-GAINS-PRIOR> (50)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 11
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 77
<AVERAGE-NET-ASSETS> 12
<PER-SHARE-NAV-BEGIN> 10.840
<PER-SHARE-NII> 0.410
<PER-SHARE-GAIN-APPREC> 0.080
<PER-SHARE-DIVIDEND> (0.400)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 10.930
<EXPENSE-RATIO> 1.510
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 801
<NAME> Janus Aspen Money Market Port. Inst.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 52,549
<INVESTMENTS-AT-VALUE> 52,549
<RECEIVABLES> 260
<ASSETS-OTHER> 4
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 52,813
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 394
<TOTAL-LIABILITIES> 394
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 52,415
<SHARES-COMMON-STOCK> 52,404
<SHARES-COMMON-PRIOR> 38,690
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 4
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 52,408
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,175
<OTHER-INCOME> 0
<EXPENSES-NET> 112
<NET-INVESTMENT-INCOME> 1,063
<REALIZED-GAINS-CURRENT> 4
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 1,067
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,063)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 56,254
<NUMBER-OF-SHARES-REDEEMED> (43,603)
<SHARES-REINVESTED> 1,063
<NET-CHANGE-IN-ASSETS> 13,718
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 58
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 128
<AVERAGE-NET-ASSETS> 46,609
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.020
<PER-SHARE-GAIN-APPREC> 0.000
<PER-SHARE-DIVIDEND> (0.020)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.480
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated June 30, 1999 included in the Portfolio's semiannual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 802
<NAME> Janus Aspen Money Market Port. Ret.
<MULTIPLIER> 1,000
<CURRENCY> U.S. Dollars
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 52,549
<INVESTMENTS-AT-VALUE> 52,549
<RECEIVABLES> 260
<ASSETS-OTHER> 4
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 52,813
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 394
<TOTAL-LIABILITIES> 394
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 52,415
<SHARES-COMMON-STOCK> 11
<SHARES-COMMON-PRIOR> 11
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 4
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 11
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,175
<OTHER-INCOME> 0
<EXPENSES-NET> 112
<NET-INVESTMENT-INCOME> 1,063
<REALIZED-GAINS-CURRENT> 4
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 1,067
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,063)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 13,718
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 58
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 128
<AVERAGE-NET-ASSETS> 11
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.020
<PER-SHARE-GAIN-APPREC> 0.000
<PER-SHARE-DIVIDEND> (0.020)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.970
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>
