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070 A010400 Y
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070 E020400 N
070 F010400 Y
070 F020400 N
070 G010400 Y
070 G020400 N
070 H010400 Y
070 H020400 N
070 I010400 Y
070 I020400 N
070 J010400 Y
070 J020400 Y
070 K010400 Y
070 K020400 N
070 L010400 Y
070 L020400 Y
070 M010400 Y
070 M020400 Y
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070 N020400 N
070 O010400 Y
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070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 Y
070 R020400 N
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<PAGE> PAGE 21
071 D000400 92
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074 B000400 51100
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<PAGE> PAGE 22
074 N000400 2528190
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024 000500 N
025 D000501 0
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<PAGE> PAGE 23
028 F030500 0
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050 000500 N
051 000500 N
052 000500 N
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<PAGE> PAGE 24
062 I000500 0.0
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064 B000500 N
066 A000500 N
067 000500 N
068 A000500 N
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070 E020500 Y
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070 G010500 Y
070 G020500 N
070 H010500 Y
070 H020500 N
070 I010500 Y
070 I020500 N
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070 J020500 Y
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<PAGE> PAGE 25
070 Q010500 N
070 Q020500 N
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<PAGE> PAGE 26
074 G000500 0
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<PAGE> PAGE 27
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<PAGE> PAGE 28
062 B000700 0.0
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<PAGE> PAGE 29
070 N010700 Y
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<PAGE> PAGE 30
074 A000700 937
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<PAGE> PAGE 31
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<PAGE> PAGE 32
051 000800 N
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<PAGE> PAGE 33
070 H010800 N
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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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<PAGE> PAGE 42
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024 001100 Y
025 A001101 CHARLES SCHWAB CORP.
<PAGE> PAGE 43
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<PAGE> PAGE 44
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<PAGE> PAGE 45
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<PAGE> PAGE 46
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<PAGE> PAGE 47
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024 001200 Y
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<PAGE> PAGE 48
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<PAGE> PAGE 49
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<PAGE> PAGE 50
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<PAGE> PAGE 51
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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 December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN GROWTH PORT. INST.
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<TABLE> <S> <C>
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<LEGEND>
This schedule contains summary financial information extracted from financial
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and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN GROWTH PORT. RET.
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
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and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> Janus Aspen Aggressive Growth Port. Inst.
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> Janus Aspen Aggressive Growth Port. Ret.
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<NAME> Janus Aspen Aggressive Growth Port. Ret.
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<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 10,391
<AVERAGE-NET-ASSETS> 9,786
<PER-SHARE-NAV-BEGIN> 27.420
<PER-SHARE-NII> 0.190
<PER-SHARE-GAIN-APPREC> 32.700
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (1.400)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 58.910
<EXPENSE-RATIO> 1.19
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> Janus Aspen Worldwide Growth Port. Inst.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 3,661,297
<INVESTMENTS-AT-VALUE> 6,610,142
<RECEIVABLES> 68,295
<ASSETS-OTHER> 11,548
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 6,689,985
<PAYABLE-FOR-SECURITIES> 4,144
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 14,669
<TOTAL-LIABILITIES> 18,813
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 3,608,193
<SHARES-COMMON-STOCK> 136,049
<SHARES-COMMON-PRIOR> 99,373
<ACCUMULATED-NII-CURRENT> 1,072
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 104,470
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2,957,437
<NET-ASSETS> 6,496,773
<DIVIDEND-INCOME> 21,755
<INTEREST-INCOME> 13,844
<OTHER-INCOME> 0
<EXPENSES-NET> 27,849
<NET-INVESTMENT-INCOME> 7,750
<REALIZED-GAINS-CURRENT> 191,001
<APPREC-INCREASE-CURRENT> 2,184,175
<NET-CHANGE-FROM-OPS> 2,382,926
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6,818)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 62,563
<NUMBER-OF-SHARES-REDEEMED> (26,096)
<SHARES-REINVESTED> 209
<NET-CHANGE-IN-ASSETS> 3,774,960
<ACCUMULATED-NII-PRIOR> 400
<ACCUMULATED-GAINS-PRIOR> (86,790)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 25,509
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 27,872
<AVERAGE-NET-ASSETS> 3,862,773
<PER-SHARE-NAV-BEGIN> 29.090
<PER-SHARE-NII> 0.070
<PER-SHARE-GAIN-APPREC> 18.650
<PER-SHARE-DIVIDEND> (0.060)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 47.750
<EXPENSE-RATIO> 0.710
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> Janus Aspen Worldwide Growth Port. Ret.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 3,661,297
<INVESTMENTS-AT-VALUE> 6,610,142
<RECEIVABLES> 68,295
<ASSETS-OTHER> 11,548
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 6,689,985
<PAYABLE-FOR-SECURITIES> 4,144
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 14,669
<TOTAL-LIABILITIES> 18,813
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 3,608,193
<SHARES-COMMON-STOCK> 3,667
<SHARES-COMMON-PRIOR> 201
<ACCUMULATED-NII-CURRENT> 1,072
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 104,470
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2,957,437
<NET-ASSETS> 174,399
<DIVIDEND-INCOME> 21,755
<INTEREST-INCOME> 13,844
<OTHER-INCOME> 0
<EXPENSES-NET> 27,849
<NET-INVESTMENT-INCOME> 7,750
<REALIZED-GAINS-CURRENT> 191,001
<APPREC-INCREASE-CURRENT> 2,184,175
<NET-CHANGE-FROM-OPS> 2,382,926
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6,818)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,869
<NUMBER-OF-SHARES-REDEEMED> (403)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 3,774,960
<ACCUMULATED-NII-PRIOR> 400
<ACCUMULATED-GAINS-PRIOR> (86,790)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 25,509
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 27,872
<AVERAGE-NET-ASSETS> 49,424
<PER-SHARE-NAV-BEGIN> 29.060
<PER-SHARE-NII> (0.040)
<PER-SHARE-GAIN-APPREC> 18.540
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 47.560
<EXPENSE-RATIO> 1.210
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN BALANCED PORT. INST.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 2,052,853
<INVESTMENTS-AT-VALUE> 2,432,313
<RECEIVABLES> 88,438
<ASSETS-OTHER> 7,439
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2,528,190
<PAYABLE-FOR-SECURITIES> 19,153
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,360
<TOTAL-LIABILITIES> 21,513
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,943,324
<SHARES-COMMON-STOCK> 87,880
<SHARES-COMMON-PRIOR> 39,226
<ACCUMULATED-NII-CURRENT> 4,104
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 179,294
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 379,955
<NET-ASSETS> 2,453,079
<DIVIDEND-INCOME> 8,820
<INTEREST-INCOME> 48,392
<OTHER-INCOME> 0
<EXPENSES-NET> 11,200
<NET-INVESTMENT-INCOME> 46,012
<REALIZED-GAINS-CURRENT> 180,516
<APPREC-INCREASE-CURRENT> 185,339
<NET-CHANGE-FROM-OPS> 411,867
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (42,435)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 51,595
<NUMBER-OF-SHARES-REDEEMED> (4,522)
<SHARES-REINVESTED> 1,581
<NET-CHANGE-IN-ASSETS> 1,606,920
<ACCUMULATED-NII-PRIOR> 527
<ACCUMULATED-GAINS-PRIOR> (1,222)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 10,805
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 11,224
<AVERAGE-NET-ASSETS> 1,583,635
<PER-SHARE-NAV-BEGIN> 22.500
<PER-SHARE-NII> 0.590
<PER-SHARE-GAIN-APPREC> 5.380
<PER-SHARE-DIVIDEND> (0.560)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 27.910
<EXPENSE-RATIO> 0.690
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN BALANCED PORT. RET.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 2,052,853
<INVESTMENTS-AT-VALUE> 2,432,313
<RECEIVABLES> 88,438
<ASSETS-OTHER> 7,439
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2,528,190
<PAYABLE-FOR-SECURITIES> 19,153
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,360
<TOTAL-LIABILITIES> 21,513
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,943,324
<SHARES-COMMON-STOCK> 1,912
<SHARES-COMMON-PRIOR> 764
<ACCUMULATED-NII-CURRENT> 4,104
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 179,294
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 379,955
<NET-ASSETS> 53,598
<DIVIDEND-INCOME> 8,820
<INTEREST-INCOME> 48,392
<OTHER-INCOME> 0
<EXPENSES-NET> 11,200
<NET-INVESTMENT-INCOME> 46,012
<REALIZED-GAINS-CURRENT> 180,516
<APPREC-INCREASE-CURRENT> 185,339
<NET-CHANGE-FROM-OPS> 411,867
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (42,435)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,385
<NUMBER-OF-SHARES-REDEEMED> (260)
<SHARES-REINVESTED> 22
<NET-CHANGE-IN-ASSETS> 1,606,920
<ACCUMULATED-NII-PRIOR> 527
<ACCUMULATED-GAINS-PRIOR> (1,222)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 10,805
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 11,224
<AVERAGE-NET-ASSETS> 28,498
<PER-SHARE-NAV-BEGIN> 22.590
<PER-SHARE-NII> 0.460
<PER-SHARE-GAIN-APPREC> 5.410
<PER-SHARE-DIVIDEND> (0.420)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 28.040
<EXPENSE-RATIO> 1.190
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN FLEXIBLE INCOME PORT. INST.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 189,696
<INVESTMENTS-AT-VALUE> 186,090
<RECEIVABLES> 5,821
<ASSETS-OTHER> 1,035
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 192,946
<PAYABLE-FOR-SECURITIES> 4,994
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 429
<TOTAL-LIABILITIES> 5,423
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 193,256
<SHARES-COMMON-STOCK> 16,357
<SHARES-COMMON-PRIOR> 10,750
<ACCUMULATED-NII-CURRENT> 392
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (3,384)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (2,741)
<NET-ASSETS> 186,681
<DIVIDEND-INCOME> 124
<INTEREST-INCOME> 12,342
<OTHER-INCOME> 0
<EXPENSES-NET> 1,166
<NET-INVESTMENT-INCOME> 11,300
<REALIZED-GAINS-CURRENT> (3,338)
<APPREC-INCREASE-CURRENT> (5,120)
<NET-CHANGE-FROM-OPS> 2,842
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (11,043)
<DISTRIBUTIONS-OF-GAINS> (977)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7,752
<NUMBER-OF-SHARES-REDEEMED> (3,192)
<SHARES-REINVESTED> 1,047
<NET-CHANGE-IN-ASSETS> 57,929
<ACCUMULATED-NII-PRIOR> 169
<ACCUMULATED-GAINS-PRIOR> 897
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,051
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,172
<AVERAGE-NET-ASSETS> 161,459
<PER-SHARE-NAV-BEGIN> 12.050
<PER-SHARE-NII> 0.760
<PER-SHARE-GAIN-APPREC> (0.580)
<PER-SHARE-DIVIDEND> (0.750)
<PER-SHARE-DISTRIBUTIONS> (0.070)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 11.410
<EXPENSE-RATIO> 0.720
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN FLEXIBLE INCOME PORT. RET.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 189,696
<INVESTMENTS-AT-VALUE> 186,090
<RECEIVABLES> 5,821
<ASSETS-OTHER> 1,035
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 192,946
<PAYABLE-FOR-SECURITIES> 4,994
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 429
<TOTAL-LIABILITIES> 5,423
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 193,256
<SHARES-COMMON-STOCK> 72
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 392
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (3,384)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (2,741)
<NET-ASSETS> 842
<DIVIDEND-INCOME> 124
<INTEREST-INCOME> 12,342
<OTHER-INCOME> 0
<EXPENSES-NET> 1,166
<NET-INVESTMENT-INCOME> 11,300
<REALIZED-GAINS-CURRENT> (3,338)
<APPREC-INCREASE-CURRENT> (5,120)
<NET-CHANGE-FROM-OPS> 2,842
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (11,043)
<DISTRIBUTIONS-OF-GAINS> (977)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 73
<NUMBER-OF-SHARES-REDEEMED> (4)
<SHARES-REINVESTED> 1
<NET-CHANGE-IN-ASSETS> 57,929
<ACCUMULATED-NII-PRIOR> 169
<ACCUMULATED-GAINS-PRIOR> 897
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,051
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,172
<AVERAGE-NET-ASSETS> 250
<PER-SHARE-NAV-BEGIN> 12.050
<PER-SHARE-NII> 0.370
<PER-SHARE-GAIN-APPREC> (0.270)
<PER-SHARE-DIVIDEND> (0.360)
<PER-SHARE-DISTRIBUTIONS> (0.070)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 11.720
<EXPENSE-RATIO> 1.200
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN INTERNATIONAL PORT. INST.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 431,246
<INVESTMENTS-AT-VALUE> 819,808
<RECEIVABLES> 8,423
<ASSETS-OTHER> 1,836
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 830,067
<PAYABLE-FOR-SECURITIES> 790
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,899
<TOTAL-LIABILITIES> 2,689
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 446,243
<SHARES-COMMON-STOCK> 20,955
<SHARES-COMMON-PRIOR> 14,623
<ACCUMULATED-NII-CURRENT> 169
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (8,482)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 389,448
<NET-ASSETS> 810,392
<DIVIDEND-INCOME> 2,715
<INTEREST-INCOME> 1,680
<OTHER-INCOME> 0
<EXPENSES-NET> 3,302
<NET-INVESTMENT-INCOME> 1,093
<REALIZED-GAINS-CURRENT> 9,375
<APPREC-INCREASE-CURRENT> 333,771
<NET-CHANGE-FROM-OPS> 344,239
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,019)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 17,341
<NUMBER-OF-SHARES-REDEEMED> (11,053)
<SHARES-REINVESTED> 44
<NET-CHANGE-IN-ASSETS> 516,251
<ACCUMULATED-NII-PRIOR> 114
<ACCUMULATED-GAINS-PRIOR> (17,886)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,829
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,307
<AVERAGE-NET-ASSETS> 425,876
<PER-SHARE-NAV-BEGIN> 21.270
<PER-SHARE-NII> 0.060
<PER-SHARE-GAIN-APPREC> 17.400
<PER-SHARE-DIVIDEND> (0.060)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 38.670
<EXPENSE-RATIO> 0.770
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN INTERNATIONAL PORT. RET.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 431,246
<INVESTMENTS-AT-VALUE> 819,808
<RECEIVABLES> 8,423
<ASSETS-OTHER> 1,836
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 830,067
<PAYABLE-FOR-SECURITIES> 790
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,899
<TOTAL-LIABILITIES> 2,689
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 446,243
<SHARES-COMMON-STOCK> 441
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 169
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (8,482)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 389,448
<NET-ASSETS> 16,986
<DIVIDEND-INCOME> 2,715
<INTEREST-INCOME> 1,680
<OTHER-INCOME> 0
<EXPENSES-NET> 3,302
<NET-INVESTMENT-INCOME> 1,093
<REALIZED-GAINS-CURRENT> 9,375
<APPREC-INCREASE-CURRENT> 333,771
<NET-CHANGE-FROM-OPS> 344,239
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,019)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 467
<NUMBER-OF-SHARES-REDEEMED> (27)
<SHARES-REINVESTED> 40
<NET-CHANGE-IN-ASSETS> 516,251
<ACCUMULATED-NII-PRIOR> 114
<ACCUMULATED-GAINS-PRIOR> (17,886)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,829
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,307
<AVERAGE-NET-ASSETS> 3,738
<PER-SHARE-NAV-BEGIN> 21.270
<PER-SHARE-NII> 0.000
<PER-SHARE-GAIN-APPREC> 17.300
<PER-SHARE-DIVIDEND> (0.010)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 38.560
<EXPENSE-RATIO> 1.250
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> Janus Aspen Money Market Port. Inst.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 71,437
<INVESTMENTS-AT-VALUE> 71,437
<RECEIVABLES> 1,901
<ASSETS-OTHER> 23
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 73,361
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,942
<TOTAL-LIABILITIES> 2,942
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 70,419
<SHARES-COMMON-STOCK> 69,266
<SHARES-COMMON-PRIOR> 38,690
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 69,266
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2,956
<OTHER-INCOME> 0
<EXPENSES-NET> 239
<NET-INVESTMENT-INCOME> 2,717
<REALIZED-GAINS-CURRENT> 3
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 2,720
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,717)
<DISTRIBUTIONS-OF-GAINS> (3)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 211,038
<NUMBER-OF-SHARES-REDEEMED> (183,175)
<SHARES-REINVESTED> 2,713
<NET-CHANGE-IN-ASSETS> 31,718
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 138
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 239
<AVERAGE-NET-ASSETS> 54,888
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.050
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (0.050)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.430
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> Janus Aspen Money Market Port. Ret.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 71,437
<INVESTMENTS-AT-VALUE> 71,437
<RECEIVABLES> 1,901
<ASSETS-OTHER> 23
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 73,361
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,942
<TOTAL-LIABILITIES> 2,942
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 70,419
<SHARES-COMMON-STOCK> 1,153
<SHARES-COMMON-PRIOR> 11
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 1,153
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2,956
<OTHER-INCOME> 0
<EXPENSES-NET> 239
<NET-INVESTMENT-INCOME> 2,717
<REALIZED-GAINS-CURRENT> 3
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 2,720
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,717)
<DISTRIBUTIONS-OF-GAINS> (3)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1224
<NUMBER-OF-SHARES-REDEEMED> (90)
<SHARES-REINVESTED> 8
<NET-CHANGE-IN-ASSETS> 31,718
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 138
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 239
<AVERAGE-NET-ASSETS> 150
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.040
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (0.040)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.860
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN HIGH-YIELD PORT. INST.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 1,623
<INVESTMENTS-AT-VALUE> 1,602
<RECEIVABLES> 36
<ASSETS-OTHER> 2
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,640
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8
<TOTAL-LIABILITIES> 8
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,811
<SHARES-COMMON-STOCK> 155
<SHARES-COMMON-PRIOR> 274
<ACCUMULATED-NII-CURRENT> 6
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (164)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (21)
<NET-ASSETS> 1,620
<DIVIDEND-INCOME> 2
<INTEREST-INCOME> 230
<OTHER-INCOME> 0
<EXPENSES-NET> 25
<NET-INVESTMENT-INCOME> 207
<REALIZED-GAINS-CURRENT> (113)
<APPREC-INCREASE-CURRENT> 55
<NET-CHANGE-FROM-OPS> 149
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (209)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 156
<NUMBER-OF-SHARES-REDEEMED> (295)
<SHARES-REINVESTED> 20
<NET-CHANGE-IN-ASSETS> (1,356)
<ACCUMULATED-NII-PRIOR> 8
<ACCUMULATED-GAINS-PRIOR> (50)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 18
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 121
<AVERAGE-NET-ASSETS> 2,448
<PER-SHARE-NAV-BEGIN> 10.850
<PER-SHARE-NII> 1.140
<PER-SHARE-GAIN-APPREC> (0.410)
<PER-SHARE-DIVIDEND> (1.130)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.450
<EXPENSE-RATIO> 1.000
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN HIGH-YIELD PORT. RET.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 1,623
<INVESTMENTS-AT-VALUE> 1,602
<RECEIVABLES> 36
<ASSETS-OTHER> 2
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,640
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8
<TOTAL-LIABILITIES> 8
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,811
<SHARES-COMMON-STOCK> 1
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 6
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (164)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (21)
<NET-ASSETS> 12
<DIVIDEND-INCOME> 2
<INTEREST-INCOME> 230
<OTHER-INCOME> 0
<EXPENSES-NET> 25
<NET-INVESTMENT-INCOME> 207
<REALIZED-GAINS-CURRENT> (113)
<APPREC-INCREASE-CURRENT> 55
<NET-CHANGE-FROM-OPS> 149
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (209)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 83
<NET-CHANGE-IN-ASSETS> (1,356)
<ACCUMULATED-NII-PRIOR> 8
<ACCUMULATED-GAINS-PRIOR> (50)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 18
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 121
<AVERAGE-NET-ASSETS> 12
<PER-SHARE-NAV-BEGIN> 10.840
<PER-SHARE-NII> 0.890
<PER-SHARE-GAIN-APPREC> (0.210)
<PER-SHARE-DIVIDEND> (0.850)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.670
<EXPENSE-RATIO> 1.510
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN CAPITAL APPR. PORT. INST.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 458,531
<INVESTMENTS-AT-VALUE> 648,699
<RECEIVABLES> 3,067
<ASSETS-OTHER> 199
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 651,965
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,825
<TOTAL-LIABILITIES> 1,825
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 459,904
<SHARES-COMMON-STOCK> 18,894
<SHARES-COMMON-PRIOR> 3,720
<ACCUMULATED-NII-CURRENT> 356
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (288)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 190,168
<NET-ASSETS> 626,611
<DIVIDEND-INCOME> 710
<INTEREST-INCOME> 3,096
<OTHER-INCOME> 0
<EXPENSES-NET> 1,849
<NET-INVESTMENT-INCOME> 1,957
<REALIZED-GAINS-CURRENT> 3,659
<APPREC-INCREASE-CURRENT> 169,996
<NET-CHANGE-FROM-OPS> 175,612
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,635)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 16,966
<NUMBER-OF-SHARES-REDEEMED> (1,847)
<SHARES-REINVESTED> 55
<NET-CHANGE-IN-ASSETS> 575,933
<ACCUMULATED-NII-PRIOR> 34
<ACCUMULATED-GAINS-PRIOR> (3,947)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,716
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,852
<AVERAGE-NET-ASSETS> 257,422
<PER-SHARE-NAV-BEGIN> 19.940
<PER-SHARE-NII> 0.120
<PER-SHARE-GAIN-APPREC> 13.220
<PER-SHARE-DIVIDEND> (0.110)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 33.170
<EXPENSE-RATIO> 0.700
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN CAPITAL APPR. PORT. RET.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 458,531
<INVESTMENTS-AT-VALUE> 648,699
<RECEIVABLES> 3,067
<ASSETS-OTHER> 199
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 651,965
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,825
<TOTAL-LIABILITIES> 1,825
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 459,904
<SHARES-COMMON-STOCK> 713
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 356
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (288)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 190,168
<NET-ASSETS> 23,529
<DIVIDEND-INCOME> 710
<INTEREST-INCOME> 3,096
<OTHER-INCOME> 0
<EXPENSES-NET> 1,849
<NET-INVESTMENT-INCOME> 1,957
<REALIZED-GAINS-CURRENT> 3,659
<APPREC-INCREASE-CURRENT> 169,996
<NET-CHANGE-FROM-OPS> 175,612
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,635)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 805
<NUMBER-OF-SHARES-REDEEMED> (93)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 575,933
<ACCUMULATED-NII-PRIOR> 34
<ACCUMULATED-GAINS-PRIOR> (3,947)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,716
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,852
<AVERAGE-NET-ASSETS> 4,402
<PER-SHARE-NAV-BEGIN> 19.860
<PER-SHARE-NII> (0.080)
<PER-SHARE-GAIN-APPREC> 13.220
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 33.000
<EXPENSE-RATIO> 1.190
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN EQUITY INC. PORT. INST.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 13,988
<INVESTMENTS-AT-VALUE> 19,243
<RECEIVABLES> 364
<ASSETS-OTHER> 80
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 19,687
<PAYABLE-FOR-SECURITIES> 172
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76
<TOTAL-LIABILITIES> 248
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 11,892
<SHARES-COMMON-STOCK> 695
<SHARES-COMMON-PRIOR> 465
<ACCUMULATED-NII-CURRENT> 11
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2,278
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5,258
<NET-ASSETS> 18,975
<DIVIDEND-INCOME> 132
<INTEREST-INCOME> 98
<OTHER-INCOME> 0
<EXPENSES-NET> 185
<NET-INVESTMENT-INCOME> 45
<REALIZED-GAINS-CURRENT> 2,279
<APPREC-INCREASE-CURRENT> 2,881
<NET-CHANGE-FROM-OPS> 5,205
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (38)
<DISTRIBUTIONS-OF-GAINS> (59)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 405
<NUMBER-OF-SHARES-REDEEMED> (179)
<SHARES-REINVESTED> 4
<NET-CHANGE-IN-ASSETS> 10,402
<ACCUMULATED-NII-PRIOR> 5
<ACCUMULATED-GAINS-PRIOR> 59
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 106
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 200
<AVERAGE-NET-ASSETS> 14,663
<PER-SHARE-NAV-BEGIN> 19.410
<PER-SHARE-NII> 0.070
<PER-SHARE-GAIN-APPREC> 7.990
<PER-SHARE-DIVIDEND> (0.060)
<PER-SHARE-DISTRIBUTIONS> (0.090)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 27.320
<EXPENSE-RATIO> 1.250
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN EQUITY INC. PORT. RET.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 13,988
<INVESTMENTS-AT-VALUE> 19,243
<RECEIVABLES> 364
<ASSETS-OTHER> 80
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 19,687
<PAYABLE-FOR-SECURITIES> 172
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76
<TOTAL-LIABILITIES> 248
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 11,892
<SHARES-COMMON-STOCK> 17
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 11
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2,278
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5,258
<NET-ASSETS> 464
<DIVIDEND-INCOME> 132
<INTEREST-INCOME> 98
<OTHER-INCOME> 0
<EXPENSES-NET> 185
<NET-INVESTMENT-INCOME> 45
<REALIZED-GAINS-CURRENT> 2,279
<APPREC-INCREASE-CURRENT> 2,881
<NET-CHANGE-FROM-OPS> 5,205
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (38)
<DISTRIBUTIONS-OF-GAINS> (59)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 17
<NUMBER-OF-SHARES-REDEEMED> (1)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 10,402
<ACCUMULATED-NII-PRIOR> 5
<ACCUMULATED-GAINS-PRIOR> 59
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 106
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 200
<AVERAGE-NET-ASSETS> 128
<PER-SHARE-NAV-BEGIN> 19.280
<PER-SHARE-NII> 0.030
<PER-SHARE-GAIN-APPREC> 7.850
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> (0.090)
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 27.070
<EXPENSE-RATIO> 1.780
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from financial
statements dated December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN GROWTH AND INCOME PORT. INST.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 68,727
<INVESTMENTS-AT-VALUE> 92,309
<RECEIVABLES> 1,366
<ASSETS-OTHER> 176
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 93,851
<PAYABLE-FOR-SECURITIES> 1,950
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 439
<TOTAL-LIABILITIES> 2,389
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 65,574
<SHARES-COMMON-STOCK> 4,067
<SHARES-COMMON-PRIOR> 536
<ACCUMULATED-NII-CURRENT> 30
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2,276
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 23,582
<NET-ASSETS> 84,480
<DIVIDEND-INCOME> 118
<INTEREST-INCOME> 379
<OTHER-INCOME> 0
<EXPENSES-NET> 332
<NET-INVESTMENT-INCOME> 165
<REALIZED-GAINS-CURRENT> 2,395
<APPREC-INCREASE-CURRENT> 22,577
<NET-CHANGE-FROM-OPS> 25,137
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (137)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,889
<NUMBER-OF-SHARES-REDEEMED> (365)
<SHARES-REINVESTED> 7
<NET-CHANGE-IN-ASSETS> 85,037
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> (119)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 202
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 333
<AVERAGE-NET-ASSETS> 28,838
<PER-SHARE-NAV-BEGIN> 11.960
<PER-SHARE-NII> 0.040
<PER-SHARE-GAIN-APPREC> 8.810
<PER-SHARE-DIVIDEND> (0.040)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 20.770
<EXPENSE-RATIO> 1.060
</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 December 31, 1999 included in the Portfolio's Annual Report
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000906185
<NAME> JANUS ASPEN GROWTH AND INCOME PORT. RET.
<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> DEC-31-1999
<EXCHANGE-RATE> 1.000
<INVESTMENTS-AT-COST> 68,727
<INVESTMENTS-AT-VALUE> 92,309
<RECEIVABLES> 1,366
<ASSETS-OTHER> 176
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 93,851
<PAYABLE-FOR-SECURITIES> 1,950
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 439
<TOTAL-LIABILITIES> 2,389
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 65,574
<SHARES-COMMON-STOCK> 338
<SHARES-COMMON-PRIOR> 1
<ACCUMULATED-NII-CURRENT> 30
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 2,276
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 23,582
<NET-ASSETS> 6,982
<DIVIDEND-INCOME> 118
<INTEREST-INCOME> 379
<OTHER-INCOME> 0
<EXPENSES-NET> 332
<NET-INVESTMENT-INCOME> 165
<REALIZED-GAINS-CURRENT> 2,395
<APPREC-INCREASE-CURRENT> 22,577
<NET-CHANGE-FROM-OPS> 25,137
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (137)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 392
<NUMBER-OF-SHARES-REDEEMED> (55)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 85,037
<ACCUMULATED-NII-PRIOR> 2
<ACCUMULATED-GAINS-PRIOR> (119)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 202
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 333
<AVERAGE-NET-ASSETS> 1,826
<PER-SHARE-NAV-BEGIN> 11.940
<PER-SHARE-NII> (0.010)
<PER-SHARE-GAIN-APPREC> 8.750
<PER-SHARE-DIVIDEND> 0.000
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 20.680
<EXPENSE-RATIO> 1.530
</TABLE>
