<PAGE> PAGE 1
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007 C010300 3
007 C020300 U.S. TREASURY MONEY MARKET FUND
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007 C010400 4
007 C010500 5
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007 C010600 6
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007 C010700 7
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007 C020800 INTERNATIONAL EQUITY FUND
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007 C010900 9
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007 C021000 BOND FUND
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<PAGE> PAGE 2
007 C021100 TAX-FREE INTERMEDIATE BOND FUND
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007 C021200 BALANCED FUND
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007 C011300 13
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007 C011400 14
007 C021400 GROWTH & INCOME FUND
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<PAGE> PAGE 3
013 B03AA01 02116
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
048 I010100 0
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<PAGE> PAGE 8
070 D010100 N
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<PAGE> PAGE 9
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<PAGE> PAGE 10
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<PAGE> PAGE 11
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<PAGE> PAGE 12
063 A000200 31
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<PAGE> PAGE 13
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<PAGE> PAGE 14
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<PAGE> PAGE 15
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<PAGE> PAGE 16
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<PAGE> PAGE 17
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<PAGE> PAGE 18
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<PAGE> PAGE 19
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<PAGE> PAGE 20
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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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<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
072 B000900 17073
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<PAGE> PAGE 42
074 P000900 210
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015 A001001 BOSTON SAFE DEPOSIT AND TRUST COMPANY
015 B001001 S
015 C011001 BOSTON
015 C021001 MA
015 C031001 02108
015 E041001 X
015 A001002 COMERICA BANK
015 B001002 C
015 C011002 DETROIT
015 C021002 MI
015 C031002 48226
015 E031002 X
024 001000 Y
025 A001001 MERRILL LYNCH PIERCE FENNER & SMITH INC.
025 B001001 13-5674085
025 C001001 D
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<PAGE> PAGE 43
028 C021000 4
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045 001000 Y
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<PAGE> PAGE 44
048 H021000 0.000
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048 K011000 0
048 K021000 0.000
055 A001000 N
055 B001000 N
056 001000 Y
057 001000 N
058 A001000 N
058 B001000 N
058 C001000 N
058 D001000 N
058 E001000 N
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060 A001000 Y
060 B001000 Y
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063 B001000 10.2
064 A001000 N
064 B001000 N
066 A001000 N
067 001000 N
068 A001000 N
068 B001000 N
069 001000 N
070 A011000 Y
070 A021000 Y
070 B011000 N
070 B021000 N
<PAGE> PAGE 45
070 C011000 Y
070 C021000 N
070 D011000 N
070 D021000 N
070 E011000 Y
070 E021000 N
070 F011000 N
070 F021000 N
070 G011000 Y
070 G021000 N
070 H011000 N
070 H021000 N
070 I011000 N
070 I021000 N
070 J011000 Y
070 J021000 N
070 K011000 Y
070 K021000 N
070 L011000 Y
070 L021000 Y
070 M011000 Y
070 M021000 N
070 N011000 Y
070 N021000 N
070 O011000 N
070 O021000 N
070 P011000 Y
070 P021000 N
070 Q011000 N
070 Q021000 N
070 R011000 N
070 R021000 N
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<PAGE> PAGE 46
072 P001000 0
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<PAGE> PAGE 47
074 Y001000 0
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015 A001101 COMERICA BANK
015 B001101 C
015 C011101 DETROIT
015 C021101 MI
015 C031101 48226
015 E031101 X
015 A001102 BOSTON SAFE DEPOSIT AND TRUST COMPANY
015 B001102 S
015 C011102 BOSTON
015 C021102 MA
015 C031102 02108
015 E041102 X
024 001100 N
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<PAGE> PAGE 48
031 B001100 0
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055 A001100 N
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057 001100 N
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<PAGE> PAGE 49
062 F001100 0.0
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064 A001100 N
064 B001100 N
066 A001100 N
067 001100 N
068 A001100 N
068 B001100 N
069 001100 N
070 A011100 Y
070 A021100 N
070 B011100 N
070 B021100 N
070 C011100 Y
070 C021100 N
070 D011100 N
070 D021100 N
070 E011100 N
070 E021100 N
070 F011100 N
070 F021100 N
070 G011100 N
070 G021100 N
070 H011100 N
070 H021100 N
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070 I021100 N
070 J011100 Y
070 J021100 N
070 K011100 Y
070 K021100 N
070 L011100 N
070 L021100 N
070 M011100 N
070 M021100 N
070 N011100 Y
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070 O011100 N
<PAGE> PAGE 50
070 O021100 N
070 P011100 Y
070 P021100 N
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070 Q021100 N
070 R011100 N
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<PAGE> PAGE 51
074 D001100 344643
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015 A001201 COMERICA BANK
015 B001201 C
015 C011201 DETROIT
015 C021201 MI
015 C031201 48226
015 E031201 X
015 A001202 BOSTON SAFE DEPOSIT AND TRUST COMPANY
015 B001202 S
015 C011202 BOSTON
015 C021202 MA
015 C031202 02108
015 E041202 X
024 001200 Y
025 A001201 MERRILL LYNCH PIERCE FENNER & SMITH INC.
025 B001201 13-5674085
025 C001201 D
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<PAGE> PAGE 52
025 D001206 0
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<PAGE> PAGE 53
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<PAGE> PAGE 54
063 B001200 0.0
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071 A001200 60132
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<PAGE> PAGE 55
071 D001200 129
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<PAGE> PAGE 56
074 N001200 53730
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015 A001301 COMERICA BANK
015 B001301 C
015 C011301 DETROIT
015 C021301 MI
015 C031301 48226
015 E031301 X
015 A001302 BOSTON SAFE DEPOSIT AND TRUST COMPANY
015 B001302 S
015 C011302 BOSTON
015 C021302 MA
015 C031302 02108
015 E041302 X
024 001300 N
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<PAGE> PAGE 57
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055 A001300 Y
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<PAGE> PAGE 58
056 001300 Y
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<PAGE> PAGE 59
070 H011300 N
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070 O011300 N
070 O021300 N
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<PAGE> PAGE 60
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015 A001401 COMERICA BANK
015 B001401 C
015 C011401 DETROIT
015 C021401 MI
015 C031401 48226
015 E031401 X
<PAGE> PAGE 61
015 A001402 BOSTON SAFE DEPOSIT AND TRUST COMPANY
015 B001402 S
015 C011402 BOSTON
015 C021402 MA
015 C031402 02108
015 E041402 X
024 001400 Y
025 A001401 MERRILL LYNCH PIERCE FENNER & SMITH INC.
025 B001401 13-5674085
025 C001401 D
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<PAGE> PAGE 62
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<PAGE> PAGE 63
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<PAGE> PAGE 64
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<PAGE> PAGE 65
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015 A001501 COMERICA BANK
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<PAGE> PAGE 66
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<PAGE> PAGE 67
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<PAGE> PAGE 68
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<PAGE> PAGE 69
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<PAGE> PAGE 70
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015 A001601 COMERICA BANK
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<PAGE> PAGE 71
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<PAGE> PAGE 72
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<PAGE> PAGE 73
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<PAGE> PAGE 74
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SIGNATURE LISA A. ROSEN
TITLE ASSISTANT SECRETARY
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
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<PER-SHARE-NII> 0.03
<PER-SHARE-GAIN-APPREC> (0.00)
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<NUMBER> 2
<NAME> MUNDER TAX-FREE MONEY MARKET CL-A
<S> <C>
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<NUMBER-OF-SHARES-REDEEMED> (9,690,381)
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 2
<NAME> MUNDER TAX-FREE MONEY MARKET CL-K
<S> <C>
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<DIVIDEND-INCOME> 105,745
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<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 2
<NAME> MUNDER TAX-FREE MONEY MARKET CL-Y
<S> <C>
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<DIVIDEND-INCOME> 105,745
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<EXPENSES-NET> 810,424
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 3
<NAME> MUNDER US TREASURY MONEY MKT CL-A
<S> <C>
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<NUMBER-OF-SHARES-REDEEMED> (1,411,661)
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<PER-SHARE-DIVIDEND> (0.03)
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 3
<NAME> MUNDER US TREASURY MONEY MKT CL-K
<S> <C>
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<TABLE> <S> <C>
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<SERIES>
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<NAME> MUNDER US TREASURY MONEY MKT CL-Y
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 5
<NAME> Munder Accelerating Growth CL-A
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 5
<NAME> Munder Accelerating Growth CL-B
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 5
<NAME> Munder Accelerating Growth CL-C
<S> <C>
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<PAID-IN-CAPITAL-COMMON> 23,064
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<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (354,593)
<ACCUMULATED-NET-GAINS> 16,269,098
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 34,109,031
<NET-ASSETS> 19,179
<DIVIDEND-INCOME> 689,557
<INTEREST-INCOME> 415,899
<OTHER-INCOME> 0
<EXPENSES-NET> 1,460,049
<NET-INVESTMENT-INCOME> (354,593)
<REALIZED-GAINS-CURRENT> 39,318,236
<APPREC-INCREASE-CURRENT> (23,306,031)
<NET-CHANGE-FROM-OPS> 15,657,612
<EQUALIZATION> 0
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<DISTRIBUTIONS-OF-GAINS> (2,880)
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<NUMBER-OF-SHARES-SOLD> 1,731
<NUMBER-OF-SHARES-REDEEMED> (280)
<SHARES-REINVESTED> 6
<NET-CHANGE-IN-ASSETS> (43,076,890)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 16,743,747
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,282,303
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,676,615
<AVERAGE-NET-ASSETS> 9,675
<PER-SHARE-NAV-BEGIN> 16.30
<PER-SHARE-NII> (0.04)
<PER-SHARE-GAIN-APPREC> (0.77)
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (2.33)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 13.16
<EXPENSE-RATIO> 1.94
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 5
<NAME> Munder Accelerating Growth CL-K
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 228,292,844
<RECEIVABLES> 18,451,122
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 2,188
<TOTAL-ASSETS> 246,746,154
<PAYABLE-FOR-SECURITIES> 3,433,424
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,235,691
<TOTAL-LIABILITIES> 5,669,115
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 77,002,501
<SHARES-COMMON-STOCK> 5,859,952
<SHARES-COMMON-PRIOR> 5,782,704
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (354,593)
<ACCUMULATED-NET-GAINS> 16,269,098
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 34,109,031
<NET-ASSETS> 77,407,298
<DIVIDEND-INCOME> 689,557
<INTEREST-INCOME> 415,899
<OTHER-INCOME> 0
<EXPENSES-NET> 1,460,049
<NET-INVESTMENT-INCOME> (354,593)
<REALIZED-GAINS-CURRENT> 39,318,236
<APPREC-INCREASE-CURRENT> (23,306,031)
<NET-CHANGE-FROM-OPS> 15,657,612
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (13,343,959)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 965,350
<NUMBER-OF-SHARES-REDEEMED> (888,398)
<SHARES-REINVESTED> 296
<NET-CHANGE-IN-ASSETS> (43,076,890)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 16,743,747
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,282,303
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,676,615
<AVERAGE-NET-ASSETS> 90,021,560
<PER-SHARE-NAV-BEGIN> 14.82
<PER-SHARE-NII> (0.03)
<PER-SHARE-GAIN-APPREC> 0.75
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (2.33)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 13.21
<EXPENSE-RATIO> 1.19
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 5
<NAME> Munder Accelerating Growth CL-Y
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 228,292,844
<RECEIVABLES> 18,451,122
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 2,188
<TOTAL-ASSETS> 246,746,154
<PAYABLE-FOR-SECURITIES> 3,433,424
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,235,691
<TOTAL-LIABILITIES> 5,669,115
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 108,577,596
<SHARES-COMMON-STOCK> 11,912,916
<SHARES-COMMON-PRIOR> 13,021,052
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (354,593)
<ACCUMULATED-NET-GAINS> 16,269,098
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 34,109,031
<NET-ASSETS> 158,276,590
<DIVIDEND-INCOME> 689,557
<INTEREST-INCOME> 415,899
<OTHER-INCOME> 0
<EXPENSES-NET> 1,460,049
<NET-INVESTMENT-INCOME> (354,593)
<REALIZED-GAINS-CURRENT> 39,318,236
<APPREC-INCREASE-CURRENT> (23,306,031)
<NET-CHANGE-FROM-OPS> 15,657,612
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (25,626,027)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,507,001
<NUMBER-OF-SHARES-REDEEMED> (2,644,127)
<SHARES-REINVESTED> 28,990
<NET-CHANGE-IN-ASSETS> (43,076,890)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 16,743,747
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,282,303
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,676,615
<AVERAGE-NET-ASSETS> 187,370,023
<PER-SHARE-NAV-BEGIN> 14.88
<PER-SHARE-NII> (0.01)
<PER-SHARE-GAIN-APPREC> 0.75
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (2.33)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 13.29
<EXPENSE-RATIO> 0.94
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 6
<NAME> Munder Small Company Growth CL-A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 151,581,911
<RECEIVABLES> 4,451,343
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 733
<TOTAL-ASSETS> 156,033,987
<PAYABLE-FOR-SECURITIES> 377,983
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 391,915
<TOTAL-LIABILITIES> 769,898
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 3,064,200
<SHARES-COMMON-STOCK> 223,855
<SHARES-COMMON-PRIOR> 187,909
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (388,956)
<ACCUMULATED-NET-GAINS> 3,914,742
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 37,970,641
<NET-ASSETS> 3,744,887
<DIVIDEND-INCOME> 166,956
<INTEREST-INCOME> 254,707
<OTHER-INCOME> 0
<EXPENSES-NET> 810,619
<NET-INVESTMENT-INCOME> (388,956)
<REALIZED-GAINS-CURRENT> 13,228,474
<APPREC-INCREASE-CURRENT> 11,245,548
<NET-CHANGE-FROM-OPS> 24,085,066
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (259,477)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 24,278
<NUMBER-OF-SHARES-REDEEMED> (1,532)
<SHARES-REINVESTED> 13,200
<NET-CHANGE-IN-ASSETS> 20,302,516
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 1,826,746
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 682,744
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 930,160
<AVERAGE-NET-ASSETS> 3,307,579
<PER-SHARE-NAV-BEGIN> 15.28
<PER-SHARE-NII> (0.04)
<PER-SHARE-GAIN-APPREC> 2.73
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (1.24)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 16.73
<EXPENSE-RATIO> 1.21
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 6
<NAME> Munder Small Company Growth CL-B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 151,581,911
<RECEIVABLES> 4,451,343
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 733
<TOTAL-ASSETS> 156,033,987
<PAYABLE-FOR-SECURITIES> 377,983
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 391,915
<TOTAL-LIABILITIES> 769,898
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 89,328
<SHARES-COMMON-STOCK> 5,840
<SHARES-COMMON-PRIOR> 3,042
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (388,956)
<ACCUMULATED-NET-GAINS> 3,914,742
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 37,970,641
<NET-ASSETS> 96,490
<DIVIDEND-INCOME> 166,956
<INTEREST-INCOME> 254,707
<OTHER-INCOME> 0
<EXPENSES-NET> 810,619
<NET-INVESTMENT-INCOME> (388,956)
<REALIZED-GAINS-CURRENT> 13,228,474
<APPREC-INCREASE-CURRENT> 11,245,548
<NET-CHANGE-FROM-OPS> 24,085,066
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
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<NUMBER-OF-SHARES-SOLD> 2,525
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 273
<NET-CHANGE-IN-ASSETS> 20,302,516
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 1,826,746
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 682,744
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 930,160
<AVERAGE-NET-ASSETS> 52,677
<PER-SHARE-NAV-BEGIN> 15.15
<PER-SHARE-NII> (0.03)
<PER-SHARE-GAIN-APPREC> 2.64
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (1.24)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 16.52
<EXPENSE-RATIO> 1.96
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 6
<NAME> Munder Small Company Growth CL-C
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 151,581,911
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<OTHER-ITEMS-ASSETS> 733
<TOTAL-ASSETS> 156,033,987
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<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 391,915
<TOTAL-LIABILITIES> 769,898
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 16,078
<SHARES-COMMON-STOCK> 945
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (388,956)
<ACCUMULATED-NET-GAINS> 3,914,742
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 37,970,641
<NET-ASSETS> 15,767
<DIVIDEND-INCOME> 166,956
<INTEREST-INCOME> 254,707
<OTHER-INCOME> 0
<EXPENSES-NET> 810,619
<NET-INVESTMENT-INCOME> (388,956)
<REALIZED-GAINS-CURRENT> 13,228,474
<APPREC-INCREASE-CURRENT> 11,245,548
<NET-CHANGE-FROM-OPS> 24,085,066
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (1,089)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 945
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 20,302,516
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 1,826,746
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 682,744
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 930,160
<AVERAGE-NET-ASSETS> 7,828
<PER-SHARE-NAV-BEGIN> 17.05
<PER-SHARE-NII> (0.06)
<PER-SHARE-GAIN-APPREC> 0.92
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (1.24)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 16.67
<EXPENSE-RATIO> 1.96
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 6
<NAME> Munder Small Company Growth CL-K
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 151,581,911
<RECEIVABLES> 4,451,343
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 733
<TOTAL-ASSETS> 156,033,987
<PAYABLE-FOR-SECURITIES> 377,983
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 391,915
<TOTAL-LIABILITIES> 769,898
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 62,269,380
<SHARES-COMMON-STOCK> 4,386,267
<SHARES-COMMON-PRIOR> 3,408,796
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (388,956)
<ACCUMULATED-NET-GAINS> 3,914,742
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 37,970,641
<NET-ASSETS> 73,377,379
<DIVIDEND-INCOME> 166,956
<INTEREST-INCOME> 254,707
<OTHER-INCOME> 0
<EXPENSES-NET> 810,619
<NET-INVESTMENT-INCOME> (388,956)
<REALIZED-GAINS-CURRENT> 13,228,474
<APPREC-INCREASE-CURRENT> 11,245,548
<NET-CHANGE-FROM-OPS> 24,085,066
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> (5,357,828)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,223,001
<NUMBER-OF-SHARES-REDEEMED> (245,548)
<SHARES-REINVESTED> 18
<NET-CHANGE-IN-ASSETS> 20,302,516
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 1,826,746
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 682,744
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 930,160
<AVERAGE-NET-ASSETS> 67,212,473
<PER-SHARE-NAV-BEGIN> 15.28
<PER-SHARE-NII> (0.05)
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<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (1.24)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 16.73
<EXPENSE-RATIO> 1.21
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 6
<NAME> Munder Small Company Growth CL-Y
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 151,581,911
<RECEIVABLES> 4,451,343
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 733
<TOTAL-ASSETS> 156,033,987
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<PAID-IN-CAPITAL-COMMON> 48,328,676
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<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (388,956)
<ACCUMULATED-NET-GAINS> 3,914,742
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<ACCUM-APPREC-OR-DEPREC> 37,970,641
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<DIVIDEND-INCOME> 166,956
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<EXPENSES-NET> 810,619
<NET-INVESTMENT-INCOME> (388,956)
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<APPREC-INCREASE-CURRENT> 11,245,548
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<DISTRIBUTIONS-OF-GAINS> (5,515,603)
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<NUMBER-OF-SHARES-SOLD> 663,580
<NUMBER-OF-SHARES-REDEEMED> (1,245,479)
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<NET-CHANGE-IN-ASSETS> 20,302,516
<ACCUMULATED-NII-PRIOR> 0
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<OVERDISTRIB-NII-PRIOR> 0
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<GROSS-ADVISORY-FEES> 682,744
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 930,160
<AVERAGE-NET-ASSETS> 78,737,781
<PER-SHARE-NAV-BEGIN> 15.33
<PER-SHARE-NII> (0.03)
<PER-SHARE-GAIN-APPREC> 2.76
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (1.24)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 16.82
<EXPENSE-RATIO> 0.96
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 7
<NAME> Munder Index 500 CL-A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 9,107,866
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<TOTAL-LIABILITIES> 662,693
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<PAID-IN-CAPITAL-COMMON> 3,955,914
<SHARES-COMMON-STOCK> 267,116
<SHARES-COMMON-PRIOR> 49,539
<ACCUMULATED-NII-CURRENT> 115,024
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<ACCUMULATED-NET-GAINS> 910,034
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 35,283,685
<NET-ASSETS> 3,974,481
<DIVIDEND-INCOME> 1,684,550
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<EXPENSES-NET> 182,926
<NET-INVESTMENT-INCOME> 1,765,739
<REALIZED-GAINS-CURRENT> 5,436,756
<APPREC-INCREASE-CURRENT> 11,652,961
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<DISTRIBUTIONS-OF-INCOME> (27,228)
<DISTRIBUTIONS-OF-GAINS> (188,002)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 223,434
<NUMBER-OF-SHARES-REDEEMED> (8,793)
<SHARES-REINVESTED> 2,936
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<SERIES>
<NUMBER> 7
<NAME> Munder Index 500 CL-B
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 7
<NAME> Munder Index 500 CL-K
<S> <C>
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<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 7
<NAME> Munder Index 500 CL-Y
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 8
<NAME> Munder International Equity CL-A
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 8
<NAME> Munder International Equity CL-B
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 8
<NAME> Munder International Equity CL-C
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 8
<NAME> Munder International Equity CL-K
<S> <C>
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<TABLE> <S> <C>
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<SERIES>
<NUMBER> 8
<NAME> Munder International Equity CL-Y
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 9
<NAME> Munder Intermediate Bond CL-A
<S> <C>
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<FISCAL-YEAR-END> JUN-30-1996
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
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<NAME> Munder Intermediate Bond CL-B
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<NAME> Munder Intermediate Bond CL-K
<S> <C>
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<NAME> Munder Intermediate Bond CL-Y
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<SERIES>
<NUMBER> 10
<NAME> Munder Bond CL-A
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 10
<NAME> Munder Bond CL-K
<S> <C>
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<TABLE> <S> <C>
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<NAME> Munder Bond CL-Y
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<SERIES>
<NUMBER> 11
<NAME> Munder Tax-Free Intermediate Bond CL-A
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<SERIES>
<NUMBER> 11
<NAME> Munder Tax-Free Intermediate Bond CL-B
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
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<SERIES>
<NUMBER> 11
<NAME> Munder Tax-Free Intermediate Bond CL-K
<S> <C>
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<TABLE> <S> <C>
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<NUMBER> 11
<NAME> Munder Tax-Free Intermediate Bond CL-Y
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 12
<NAME> Munder Balanced CL-A
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 12
<NAME> Munder Balanced CL-B
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 12
<NAME> Munder Balanced CL-K
<S> <C>
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<TABLE> <S> <C>
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<SERIES>
<NUMBER> 12
<NAME> Munder Balanced CL-Y
<S> <C>
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 13
<NAME> MUNDER MICHIGAN TRIPLE TAX-FREE CL-A
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 13
<NAME> MUNDER MICHIGAN TRIPLE TAX-FREE CL-B
<S> <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 13
<NAME> MUNDER MICHIGAN TRIPLE TAX-FREE CL-K
<S> <C>
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<PERIOD-END> DEC-31-1995
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<INVESTMENTS-AT-VALUE> 26,635,767
<RECEIVABLES> 299,942
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 15,909
<TOTAL-ASSETS> 26,951,618
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<OTHER-ITEMS-LIABILITIES> 16,993
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<PAID-IN-CAPITAL-COMMON> 25,097,476
<SHARES-COMMON-STOCK> 2,664,786
<SHARES-COMMON-PRIOR> 2,736,493
<ACCUMULATED-NII-CURRENT> 1,920
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (128,472)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 934,203
<NET-ASSETS> 26,030,035
<DIVIDEND-INCOME> 11,553
<INTEREST-INCOME> 756,398
<OTHER-INCOME> 0
<EXPENSES-NET> 70,629
<NET-INVESTMENT-INCOME> 697,322
<REALIZED-GAINS-CURRENT> 172,915
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<NET-CHANGE-FROM-OPS> 1,912,470
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (672,406)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 412,913
<NUMBER-OF-SHARES-REDEEMED> (484,708)
<SHARES-REINVESTED> 88
<NET-CHANGE-IN-ASSETS> (56,469)
<ACCUMULATED-NII-PRIOR> 75
<ACCUMULATED-GAINS-PRIOR> (301,387)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 91,207
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 161,836
<AVERAGE-NET-ASSETS> 26,828,047
<PER-SHARE-NAV-BEGIN> 9.34
<PER-SHARE-NII> 0.24
<PER-SHARE-GAIN-APPREC> 0.43
<PER-SHARE-DIVIDEND> (0.24)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.77
<EXPENSE-RATIO> 0.50
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 13
<NAME> MUNDER MICHIGAN TRIPLE TAX-FREE CL-Y
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 25,701,564
<INVESTMENTS-AT-VALUE> 26,635,767
<RECEIVABLES> 299,942
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 15,909
<TOTAL-ASSETS> 26,951,618
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 16,993
<TOTAL-LIABILITIES> 16,993
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 342,405
<SHARES-COMMON-STOCK> 17,703
<SHARES-COMMON-PRIOR> 82,542
<ACCUMULATED-NII-CURRENT> 1,920
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (128,472)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 934,203
<NET-ASSETS> 173,078
<DIVIDEND-INCOME> 11,553
<INTEREST-INCOME> 756,398
<OTHER-INCOME> 0
<EXPENSES-NET> 70,629
<NET-INVESTMENT-INCOME> 697,322
<REALIZED-GAINS-CURRENT> 172,915
<APPREC-INCREASE-CURRENT> 1,042,233
<NET-CHANGE-FROM-OPS> 1,912,470
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6,683)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,247
<NUMBER-OF-SHARES-REDEEMED> (66,086)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (56,469)
<ACCUMULATED-NII-PRIOR> 75
<ACCUMULATED-GAINS-PRIOR> (301,387)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 91,207
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 161,836
<AVERAGE-NET-ASSETS> 271,528
<PER-SHARE-NAV-BEGIN> 9.34
<PER-SHARE-NII> 0.26
<PER-SHARE-GAIN-APPREC> 0.43
<PER-SHARE-DIVIDEND> (0.25)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.78
<EXPENSE-RATIO> 0.25
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 14
<NAME> MUNDER GROWTH & INCOME CL-A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 147,818,497
<INVESTMENTS-AT-VALUE> 178,498,742
<RECEIVABLES> 1,006,039
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 5,772
<TOTAL-ASSETS> 179,510,553
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 320,786
<TOTAL-LIABILITIES> 320,786
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 814,595
<SHARES-COMMON-STOCK> 70,365
<SHARES-COMMON-PRIOR> 20,332
<ACCUMULATED-NII-CURRENT> 95,261
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,651,567
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 30,680,245
<NET-ASSETS> 888,093
<DIVIDEND-INCOME> 2,518,720
<INTEREST-INCOME> 783,824
<OTHER-INCOME> 0
<EXPENSES-NET> 954,843
<NET-INVESTMENT-INCOME> 2,347,701
<REALIZED-GAINS-CURRENT> 2,245,520
<APPREC-INCREASE-CURRENT> 19,047,198
<NET-CHANGE-FROM-OPS> 23,640,419
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (7,908)
<DISTRIBUTIONS-OF-GAINS> (6,398)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 57,491
<NUMBER-OF-SHARES-REDEEMED> (7,564)
<SHARES-REINVESTED> 106
<NET-CHANGE-IN-ASSETS> 38,464,091
<ACCUMULATED-NII-PRIOR> 67,558
<ACCUMULATED-GAINS-PRIOR> 694,348
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 715,689
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,076,489
<AVERAGE-NET-ASSETS> 427,988
<PER-SHARE-NAV-BEGIN> 11.14
<PER-SHARE-NII> 0.16
<PER-SHARE-GAIN-APPREC> 1.58
<PER-SHARE-DIVIDEND> (0.17)
<PER-SHARE-DISTRIBUTIONS> (0.09)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 12.62
<EXPENSE-RATIO> 1.22
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 14
<NAME> MUNDER GROWTH & iNCOME CL-B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 147,818,497
<INVESTMENTS-AT-VALUE> 178,498,742
<RECEIVABLES> 1,006,039
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 5,772
<TOTAL-ASSETS> 179,510,553
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 320,786
<TOTAL-LIABILITIES> 320,786
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 152,025
<SHARES-COMMON-STOCK> 13,640
<SHARES-COMMON-PRIOR> 5,087
<ACCUMULATED-NII-CURRENT> 95,261
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,651,567
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 30,680,245
<NET-ASSETS> 171,859
<DIVIDEND-INCOME> 2,518,720
<INTEREST-INCOME> 783,824
<OTHER-INCOME> 0
<EXPENSES-NET> 954,843
<NET-INVESTMENT-INCOME> 2,347,701
<REALIZED-GAINS-CURRENT> 2,245,520
<APPREC-INCREASE-CURRENT> 19,047,198
<NET-CHANGE-FROM-OPS> 23,640,419
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,545)
<DISTRIBUTIONS-OF-GAINS> (1,242)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 9,133
<NUMBER-OF-SHARES-REDEEMED> (615)
<SHARES-REINVESTED> 35
<NET-CHANGE-IN-ASSETS> 38,464,091
<ACCUMULATED-NII-PRIOR> 67,558
<ACCUMULATED-GAINS-PRIOR> 694,348
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 715,689
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,076,489
<AVERAGE-NET-ASSETS> 106,143
<PER-SHARE-NAV-BEGIN> 11.13
<PER-SHARE-NII> 0.10
<PER-SHARE-GAIN-APPREC> 1.60
<PER-SHARE-DIVIDEND> (0.14)
<PER-SHARE-DISTRIBUTIONS> (0.09)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 12.60
<EXPENSE-RATIO> 1.97
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 14
<NAME> MUNDER GROWTH & INCOME CL-C
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 147,818,497
<INVESTMENTS-AT-VALUE> 178,498,742
<RECEIVABLES> 1,006,039
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 5,772
<TOTAL-ASSETS> 179,510,553
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 320,786
<TOTAL-LIABILITIES> 320,786
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 10,317
<SHARES-COMMON-STOCK> 816
<SHARES-COMMON-PRIOR> 2
<ACCUMULATED-NII-CURRENT> 95,261
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,651,567
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 30,680,245
<NET-ASSETS> 10,290
<DIVIDEND-INCOME> 2,518,720
<INTEREST-INCOME> 783,824
<OTHER-INCOME> 0
<EXPENSES-NET> 954,843
<NET-INVESTMENT-INCOME> 2,347,701
<REALIZED-GAINS-CURRENT> 2,245,520
<APPREC-INCREASE-CURRENT> 19,047,198
<NET-CHANGE-FROM-OPS> 23,640,419
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (66)
<DISTRIBUTIONS-OF-GAINS> (73)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 814
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 38,464,091
<ACCUMULATED-NII-PRIOR> 67,558
<ACCUMULATED-GAINS-PRIOR> 694,348
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 715,689
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,076,489
<AVERAGE-NET-ASSETS> 9,595
<PER-SHARE-NAV-BEGIN> 12.60
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0.17
<PER-SHARE-DIVIDEND> (0.08)
<PER-SHARE-DISTRIBUTIONS> (0.10)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 12.61
<EXPENSE-RATIO> 1.97
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 14
<NAME> MUNDER GROWTH & INCOME CL-K
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 147,818,497
<INVESTMENTS-AT-VALUE> 178,498,742
<RECEIVABLES> 1,006,039
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 5,772
<TOTAL-ASSETS> 179,510,553
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 320,786
<TOTAL-LIABILITIES> 320,786
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 134,434,129
<SHARES-COMMON-STOCK> 13,046,566
<SHARES-COMMON-PRIOR> 11,899,491
<ACCUMULATED-NII-CURRENT> 95,261
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,651,567
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 30,680,245
<NET-ASSETS> 164,742,909
<DIVIDEND-INCOME> 2,518,720
<INTEREST-INCOME> 783,824
<OTHER-INCOME> 0
<EXPENSES-NET> 954,843
<NET-INVESTMENT-INCOME> 2,347,701
<REALIZED-GAINS-CURRENT> 2,245,520
<APPREC-INCREASE-CURRENT> 19,047,198
<NET-CHANGE-FROM-OPS> 23,640,419
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,141,201)
<DISTRIBUTIONS-OF-GAINS> (1,184,869)
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<NUMBER-OF-SHARES-SOLD> 2,201,996
<NUMBER-OF-SHARES-REDEEMED> (1,054,994)
<SHARES-REINVESTED> 73
<NET-CHANGE-IN-ASSETS> 38,464,091
<ACCUMULATED-NII-PRIOR> 67,558
<ACCUMULATED-GAINS-PRIOR> 694,348
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 715,689
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,076,489
<AVERAGE-NET-ASSETS> 145,993,501
<PER-SHARE-NAV-BEGIN> 11.14
<PER-SHARE-NII> 0.17
<PER-SHARE-GAIN-APPREC> 1.58
<PER-SHARE-DIVIDEND> (0.17)
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<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 12.63
<EXPENSE-RATIO> 1.22
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 14
<NAME> MUNDER GROWTH & INCOME CL-Y
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 147,818,497
<INVESTMENTS-AT-VALUE> 178,498,742
<RECEIVABLES> 1,006,039
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 5,772
<TOTAL-ASSETS> 179,510,553
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 320,786
<TOTAL-LIABILITIES> 320,786
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 11,351,628
<SHARES-COMMON-STOCK> 1,059,248
<SHARES-COMMON-PRIOR> 705,404
<ACCUMULATED-NII-CURRENT> 95,261
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<ACCUMULATED-NET-GAINS> 1,651,567
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 30,680,245
<NET-ASSETS> 13,376,616
<DIVIDEND-INCOME> 2,518,720
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<EXPENSES-NET> 954,843
<NET-INVESTMENT-INCOME> 2,347,701
<REALIZED-GAINS-CURRENT> 2,245,520
<APPREC-INCREASE-CURRENT> 19,047,198
<NET-CHANGE-FROM-OPS> 23,640,419
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (169,278)
<DISTRIBUTIONS-OF-GAINS> (95,719)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 514,910
<NUMBER-OF-SHARES-REDEEMED> (161,066)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 38,464,091
<ACCUMULATED-NII-PRIOR> 67,558
<ACCUMULATED-GAINS-PRIOR> 694,348
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 715,689
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,076,489
<AVERAGE-NET-ASSETS> 11,021,305
<PER-SHARE-NAV-BEGIN> 11.14
<PER-SHARE-NII> 0.19
<PER-SHARE-GAIN-APPREC> 1.58
<PER-SHARE-DIVIDEND> (0.19)
<PER-SHARE-DISTRIBUTIONS> (0.09)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 12.63
<EXPENSE-RATIO> 0.97
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 15
<NAME> MUNDER US GOVT INCOME CL-A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 155,678,182
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<RECEIVABLES> 3,247,879
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 8,143
<TOTAL-ASSETS> 166,475,104
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 679,147
<TOTAL-LIABILITIES> 679,147
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,710,740
<SHARES-COMMON-STOCK> 163,912
<SHARES-COMMON-PRIOR> 9,424
<ACCUMULATED-NII-CURRENT> 196,868
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 15,847
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7,540,900
<NET-ASSETS> 1,714,790
<DIVIDEND-INCOME> 189,871
<INTEREST-INCOME> 6,825,319
<OTHER-INCOME> 0
<EXPENSES-NET> 856,820
<NET-INVESTMENT-INCOME> 6,158,370
<REALIZED-GAINS-CURRENT> 2,248,008
<APPREC-INCREASE-CURRENT> 1,437,958
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<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9,412)
<DISTRIBUTIONS-OF-GAINS> (5,751)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 157,660
<NUMBER-OF-SHARES-REDEEMED> (4,234)
<SHARES-REINVESTED> 1,062
<NET-CHANGE-IN-ASSETS> (21,837,841)
<ACCUMULATED-NII-PRIOR> 19,369
<ACCUMULATED-GAINS-PRIOR> (1,004,428)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 583,467
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 996,479
<AVERAGE-NET-ASSETS> 249,751
<PER-SHARE-NAV-BEGIN> 10.30
<PER-SHARE-NII> 0.39
<PER-SHARE-GAIN-APPREC> 0.21
<PER-SHARE-DIVIDEND> (0.36)
<PER-SHARE-DISTRIBUTIONS> (0.08)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 10.46
<EXPENSE-RATIO> 0.98
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 15
<NAME> MUNDER US GOVT INCOME CL-B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 155,678,182
<INVESTMENTS-AT-VALUE> 163,219,082
<RECEIVABLES> 3,247,879
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 8,143
<TOTAL-ASSETS> 166,475,104
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 679,147
<TOTAL-LIABILITIES> 679,147
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 796,689
<SHARES-COMMON-STOCK> 76,277
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 196,868
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 15,847
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7,540,900
<NET-ASSETS> 798,430
<DIVIDEND-INCOME> 189,871
<INTEREST-INCOME> 6,825,319
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<EXPENSES-NET> 856,820
<NET-INVESTMENT-INCOME> 6,158,370
<REALIZED-GAINS-CURRENT> 2,248,008
<APPREC-INCREASE-CURRENT> 1,437,958
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<NUMBER-OF-SHARES-SOLD> 77,106
<NUMBER-OF-SHARES-REDEEMED> (829)
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (21,837,841)
<ACCUMULATED-NII-PRIOR> 19,369
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<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 996,479
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<PER-SHARE-NAV-BEGIN> 10.31
<PER-SHARE-NII> 0.19
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<PER-SHARE-DIVIDEND> (0.21)
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<PER-SHARE-NAV-END> 10.47
<EXPENSE-RATIO> 1.73
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<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 15
<NAME> MUNDER US GOVT INCOME CL-K
<S> <C>
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<PERIOD-END> DEC-31-1995
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<RECEIVABLES> 3,247,879
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<NET-ASSETS> 157,972,431
<DIVIDEND-INCOME> 189,871
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<NET-INVESTMENT-INCOME> 6,158,370
<REALIZED-GAINS-CURRENT> 2,248,008
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<NUMBER-OF-SHARES-SOLD> 872,895
<NUMBER-OF-SHARES-REDEEMED> (2,739,892)
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<NET-CHANGE-IN-ASSETS> (21,837,841)
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<GROSS-EXPENSE> 996,479
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<PER-SHARE-NAV-BEGIN> 10.30
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 15
<NAME> MUNDER US GOVT INCOME CL-Y
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
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<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7,540,900
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<DIVIDEND-INCOME> 189,871
<INTEREST-INCOME> 6,825,319
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<EXPENSES-NET> 856,820
<NET-INVESTMENT-INCOME> 6,158,370
<REALIZED-GAINS-CURRENT> 2,248,008
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<NET-CHANGE-IN-ASSETS> (21,837,841)
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<PER-SHARE-NAV-END> 10.47
<EXPENSE-RATIO> 0.73
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 16
<NAME> MUNDER TAX FREE BOND CL-A
<S> <C>
<PERIOD-TYPE> 6-MOS
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<NET-CHANGE-IN-ASSETS> (16,330,453)
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<EXPENSE-RATIO> 0.99
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 16
<NAME> MUNDER TAX FREE BOND CL-B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 197,620,816
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<NUMBER-OF-SHARES-REDEEMED> (39)
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<NET-CHANGE-IN-ASSETS> (16,330,453)
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<PER-SHARE-NAV-END> 10.77
<EXPENSE-RATIO> 1.74
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 16
<NAME> MUNDER TAX FREE BOND CL-K
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 197,620,816
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<NUMBER-OF-SHARES-REDEEMED> (2,902,674)
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 16
<NAME> MUNDER TAX FREE BOND CL-Y
<S> <C>
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<FISCAL-YEAR-END> JUN-30-1996
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</TABLE>
