MUNDER FUNDS TRUST
NSAR-A, 1998-02-27
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<PAGE>      PAGE  1
000 A000000 12/31/97
000 C000000 855022
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 THE MUNDER FUNDS TRUST
001 B000000 811-5899
001 C000000 2486479201
002 A000000 480 PIERCE STREET
002 B000000 BIRMINGHAM
002 C000000 MI
002 D010000 48009
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000 15
007 C010100  1
007 C020100 CASH INVESTMENT FUND
007 C030100 N
007 C010200  2
007 C020200 TAX-FREE MONEY MARKET FUND
007 C030200 N
007 C010300  3
007 C020300 U.S. TREASURY MONEY MARKET FUND
007 C030300 N
007 C010400  4
007 C010500  5
007 C020500 ACCELERATING GROWTH FUND
007 C030500 N
007 C010600  6
007 C020600 SMALL COMPANY GROWTH FUND
007 C030600 N
007 C010700  7
007 C020700 INDEX 500 FUND
007 C030700 N
007 C010800  8
007 C020800 INTERNATIONAL EQUITY FUND
007 C030800 N
007 C010900  9
007 C020900 INTERMEDIATE BOND FUND
007 C030900 N
007 C011000 10
007 C021000 BOND FUND
007 C031000 N
007 C011100 11
<PAGE>      PAGE  2
007 C021100 TAX-FREE INTERMEDIATE BOND FUND
007 C031100 N
007 C011200 12
007 C021200 BALANCED FUND
007 C031200 N
007 C011300 13
007 C021300 MICHIGAN TRIPLE TAX-FREE BOND FUND
007 C031300 N
007 C011400 14
007 C021400 GROWTH & INCOME FUND
007 C031400 N
007 C011500 15
007 C021500 U.S. GOVERNMENT INCOME FUND
007 C031500 N
007 C011600 16
007 C021600 TAX-FREE BOND FUND
007 C031600 N
007 C011700 17
007 C011800 18
007 C011900 19
007 C012000 20
008 A00AA01 MUNDER CAPITAL MANAGEMENT
008 B00AA01 A
008 C00AA01 801-32415
008 D01AA01 BIRMINGHAM
008 D02AA01 MI
008 D03AA01 48009
008 D04AA01 3043
010 A00AA01 STATE STREET BANK AND TRUST CO.
010 B00AA01 85-05003
010 C01AA01 BOSTON
010 C02AA01 MA
010 C03AA01 02109
010 A00AA02 FUNDS DISTRIBUTOR, INC.
010 B00AA02 8-20518
010 C01AA02 BOSTON
010 C02AA02 MA
010 C03AA02 02109
011 A00AA01 FUNDS DISTRIBUTOR, INC.
011 B00AA01 8-20518
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02109
012 A00AA01 FIRST DATA INVESTOR SERVICES GROUP, INC.
012 B00AA01 84-1761
012 C01AA01 WESTBOROUGH
012 C02AA01 MA
012 C03AA01 01581
013 A00AA01 ERNST & YOUNG LLP
013 B01AA01 BOSTON
013 B02AA01 MA
<PAGE>      PAGE  3
013 B03AA01 02116
014 A00AA01 COMERICA SECURITIES, INC.
014 B00AA01 8-999
015 A00AA01 COMERICA BANK
015 B00AA01 C
015 C01AA01 DETROIT
015 C02AA01 MI
015 C03AA01 48226
015 E03AA01 X
015 A00AA02 STATE STREET BANK
015 B00AA02 S
015 C01AA02 BOSTON
015 C02AA02 MA
015 C03AA02 02109
015 E01AA02 X
015 A00AA03 CITIBANK, N.A.
015 B00AA03 S
015 C01AA03 BUENOS AIRES
015 D01AA03 ARGENTINA
015 E04AA03 X
015 A00AA04 WESTPAC BANKING CORPORATION
015 B00AA04 S
015 C01AA04 MELBOURNE
015 D01AA04 AUSTRALIA
015 E04AA04 X
015 A00AA05 ERSTE BANK DER OESTERREICHISCHEN SPARKASEN AG
015 B00AA05 S
015 C01AA05 VIENNA
015 D01AA05 AUSTRIA
015 E04AA05 X
015 A00AA06 THE BRITISH BANK OF THE MIDDLE EAST
015 B00AA06 S
015 C01AA06 MANAMA
015 D01AA06 BAHRAIN
015 E04AA06 X
015 A00AA07 STANDARD CHARTERED BANK
015 B00AA07 S
015 C01AA07 DHAKA
015 D01AA07 BANGLADESH
015 E04AA07 X
015 A00AA08 GENERAL BANK
015 B00AA08 S
015 C01AA08 BRUSSELS
015 D01AA08 BELGIUM
015 E04AA08 X
015 A00AA09 THE BANK OF BERMUDA LIMITED
015 B00AA09 S
015 C01AA09 HAMILTON
015 D01AA09 BERMUDA
015 E04AA09 X
015 A00AA10 BARCLAYS BANK OF BOTSWANA LIMITED
<PAGE>      PAGE  4
015 B00AA10 S
015 C01AA10 GABORONE
015 D01AA10 BOTSWANA
015 E04AA10 X
015 A00AA11 CITIBANK, N.A.
015 B00AA11 S
015 C01AA11 SAO PAULO
015 D01AA11 BRAZIL
015 E04AA11 X
015 A00AA12 CANADA TRUSTCO MORTGAGE COMPANY
015 B00AA12 S
015 C01AA12 TORONTO
015 D01AA12 CANADA
015 E04AA12 X
015 A00AA13 CITIBANK, N.A.
015 B00AA13 S
015 C01AA13 SANTIAGO
015 D01AA13 CHILE
015 E04AA13 X
015 A00AA14 THE HONGKONG AND SHANGHAI BANKING CORP. LTD
015 B00AA14 S
015 C01AA14 SHANGHAI
015 D01AA14 CHINA
015 E04AA14 X
015 A00AA15 THE HONGKONG AND SHANGHAI BANKING CORP. LTD.
015 B00AA15 S
015 C01AA15 SHENZHEN
015 D01AA15 CHINA
015 E04AA15 X
015 A00AA16 CITITRUST COLOMBIA S.A. SOCIEDAD FIDUCIARIA
015 B00AA16 S
015 C01AA16 BOGOTA
015 D01AA16 COLOMBIA
015 E04AA16 X
015 A00AA17 BACLAYS BANK PLC CYPRUS
015 B00AA17 S
015 C01AA17 NICOSIA
015 D01AA17 CYPRUS
015 E04AA17 X
015 A00AA18 CESKOSLOVENSKA OBCHODNI BANKA A.S.
015 B00AA18 S
015 C01AA18 PRAGUE
015 D01AA18 CZECH REPUBLIC
015 E04AA18 X
015 A00AA19 DEN DANSKE BANK
015 B00AA19 S
015 C01AA19 COPENHAGEN
015 D01AA19 DENMARK
015 E04AA19 X
015 A00AA20 CITIBANK, N.A.
015 B00AA20 S
<PAGE>      PAGE  5
015 C01AA20 QUITO
015 D01AA20 ECUADOR
015 E04AA20 X
015 A00AA21 NATIONAL BANK OF EGYPT
015 B00AA21 S
015 C01AA21 CAIRO
015 D01AA21 EGYPT
015 E04AA21 X
015 A00AA22 MERITA BANK LTD.
015 B00AA22 S
015 C01AA22 HELSINKI
015 D01AA22 FINLAND
015 E04AA22 X
015 A00AA23 BANQUE PARIBAS
015 B00AA23 S
015 C01AA23 PARIS
015 D01AA23 FRANCE
015 E04AA23 X
015 A00AA24 DRESDNER BANK AG
015 B00AA24 S
015 C01AA24 FRANKFURT
015 D01AA24 GERMANY
015 E04AA24 X
015 A00AA25 BARCLAYS BANK OF GHANA LIMITED
015 B00AA25 S
015 C01AA25 ACCRA
015 D01AA25 GHANA
015 E04AA25 X
015 A00AA26 NATIONAL BANK OF GREECE S.A.
015 B00AA26 S
015 C01AA26 ATHENS
015 D01AA26 GREECE
015 E04AA26 X
015 A00AA27 STANDARD CHARTERED BANK
015 B00AA27 S
015 C01AA27 HONG KONG
015 D01AA27 HONG KONG
015 E04AA27 X
015 A00AA28 CITIBANK BUDAPEST RT.
015 B00AA28 S
015 C01AA28 BUDAPEST
015 D01AA28 HUNGARY
015 E04AA28 X
015 A00AA29 DEUTSCHE BANK AG
015 B00AA29 S
015 C01AA29 BOMBAY
015 D01AA29 INDIA
015 E04AA29 X
015 A00AA30 THE HONGKONG AND SHANGHAI
015 B00AA30 S
015 C01AA30 MUMBAI
<PAGE>      PAGE  6
015 D01AA30 INDIA
015 E04AA30 X
015 A00AA31 STANDARD CHARTERED BANK
015 B00AA31 S
015 C01AA31 JAKARTA
015 D01AA31 INDONESIA
015 E04AA31 X
015 A00AA32 BANK OF IRELAND
015 B00AA32 S
015 C01AA32 DUBLIN
015 D01AA32 IRELAND
015 E04AA32 X
015 A00AA33 BANK HAPOALIM B.M.
015 B00AA33 S
015 C01AA33 TEL AVIV
015 D01AA33 ISRAEL
015 E04AA33 X
015 A00AA34 BANQUE PARIBAS
015 B00AA34 S
015 C01AA34 MILANO
015 D01AA34 ITALY
015 E04AA34 X
015 A00AA35 SOCIETE GENERALE DE BANQUES EN COTE D'IVOIRE
015 B00AA35 S
015 C01AA35 ABIDJAN
015 D01AA35 IVORY COAST
015 E04AA35 X
015 A00AA36 THE DAIWA BANK, LIMITED
015 B00AA36 S
015 C01AA36 TOKYO
015 D01AA36 JAPAN
015 E04AA36 X
015 A00AA37 THE FUJI BANK, LIMITED
015 B00AA37 S
015 C01AA37 TOKYO
015 D01AA37 JAPAN
015 E04AA37 X
015 A00AA38 THE SUMITOMO TRUST & BANKING CO., LTD.
015 B00AA38 S
015 C01AA38 TOKYO
015 D01AA38 JAPAN
015 E04AA38 X
015 A00AA39 THE BRITISH BANK OF THE MIDDLE EAST
015 B00AA39 S
015 C01AA39 AMMAN
015 D01AA39 JORDAN
015 E04AA39 X
015 A00AA40 BARCLAYS BANK OF KENYA LIMITED
015 B00AA40 S
015 C01AA40 NAIROBI
015 D01AA40 KENYA
<PAGE>      PAGE  7
015 E04AA40 X
015 A00AA41 SEOULBANK
015 B00AA41 S
015 C01AA41 SEOUL
015 D01AA41 KOREA
015 E04AA41 X
015 A00AA42 THE  BRITISH BANK OF THE MIDDLE EAST
015 B00AA42 S
015 C01AA42 BEIRUT
015 D01AA42 LEBANON
015 E04AA42 X
015 A00AA43 STANDARD CHARTERED BANK MALAYSIA BERHAD
015 B00AA43 S
015 C01AA43 KUALA LUMPUR
015 D01AA43 MALAYSIA
015 E04AA43 X
015 A00AA44 THE HONGKONG AND SHANGHAI BANKING CORPORATION
015 B00AA44 S
015 C01AA44 PORT LOUIS
015 D01AA44 MAURITIUS
015 E04AA44 X
015 A00AA45 CITIBANK MEXICO, S.A.
015 B00AA45 S
015 C01AA45 MEXICO CITY
015 D01AA45 MEXICO
015 E04AA45 X
015 A00AA46 BANQUE COMMERCIALE DU MAROC
015 B00AA46 S
015 C01AA46 CASABLANCA
015 D01AA46 MOROCCO
015 E04AA46 X
015 A00AA47 MEESPIERSON N.V.
015 B00AA47 S
015 C01AA47 AMSTERDAM
015 D01AA47 NETHERLANDS
015 E04AA47 X
015 A00AA48 ANZ BANKING GROUP LIMITED
015 B00AA48 S
015 C01AA48 WELLINGTON
015 D01AA48 NEW ZEALAND
015 E04AA48 X
015 A00AA49 CHRISTIANIA BANK OF KREDITKASSE
015 B00AA49 S
015 C01AA49 OSLO
015 D01AA49 NORWAY
015 E04AA49 X
015 A00AA50 THE BRITISH BANK OF THE MIDDLE EAST
015 B00AA50 S
015 C01AA50 OMAN
015 D01AA50 OMAN
015 E04AA50 X
<PAGE>      PAGE  8
015 A00AA51 DEUTSCHE BANK AG
015 B00AA51 S
015 C01AA51 KARACHI
015 D01AA51 PAKISTAN
015 E04AA51 X
015 A00AA52 CITIBANK, N.A.
015 B00AA52 S
015 C01AA52 LIMA
015 D01AA52 PERU
015 E04AA52 X
015 A00AA53 STANDARD CHARTERED BANK
015 B00AA53 S
015 C01AA53 MANILA
015 D01AA53 PHILIPPINES
015 E04AA53 X
015 A00AA54 CITIBANK POLAND S.A.
015 B00AA54 S
015 C01AA54 WARSAW
015 D01AA54 POLAND
015 E04AA54 X
015 A00AA55 BANCO COMERCIAL PORTUGUES
015 B00AA55 S
015 C01AA55 LISBON
015 D01AA55 PORTUGAL
015 E04AA55 X
015 A00AA56 ING BANK N.V.-BUCHAREST
015 B00AA56 S
015 C01AA56 BUCHAREST
015 D01AA56 ROMANIA
015 E04AA56 X
015 A00AA57 CREDIT SUISSE FIRST BOSTON, ZURICH VIA CREDIT
015 B00AA57 S
015 C01AA57 MOSCOW
015 D01AA57 RUSSIA
015 E04AA57 X
015 A00AA58 THE DEVELOPMENT BANK OF SINGAPORE LTD.
015 B00AA58 S
015 C01AA58 SINGAPORE
015 D01AA58 SINGAPORE
015 E04AA58 X
015 A00AA59 CESKOSLOVENSKA OBCHODNA BANKA A.S.
015 B00AA59 S
015 C01AA59 BRATISLAVA
015 D01AA59 SLOVAK REPUBLIC
015 E04AA59 X
015 A00AA60 STANDARD BANK OF SOUTH AFRICA LIMITED
015 B00AA60 S
015 C01AA60 JOHANNESBURG
015 D01AA60 SOUTH AFRICA
015 E04AA60 X
015 A00AA61 BANCO SANTANDER, S.A.
<PAGE>      PAGE  9
015 B00AA61 S
015 C01AA61 MADRID
015 D01AA61 SPAIN
015 E04AA61 X
015 A00AA62 THE HONGKONG AND SHANGHAI BANKING CORP. LTD.
015 B00AA62 S
015 C01AA62 COLOMBO
015 D01AA62 SRI LANKA
015 E04AA62 X
015 A00AA63 BARCLAYS BANK OF SWAZILAND LIMITED
015 B00AA63 S
015 C01AA63 MBABANE
015 D01AA63 SWAZILAND
015 E04AA63 X
015 A00AA64 SKANDINAVISKA ENSKILDA BANKEN
015 B00AA64 S
015 C01AA64 STOCKHOLM
015 D01AA64 SWEDEN
015 E04AA64 X
015 A00AA65 UNION BANK OF SWITZERLAND
015 B00AA65 S
015 C01AA65 ZURICH
015 D01AA65 SWITZERLAND
015 E04AA65 X
015 A00AA66 CENTRAL TRUST OF CHINA
015 B00AA66 S
015 C01AA66 TAIPEI
015 D01AA66 TAIWAN-R.O.C.
015 E04AA66 X
015 A00AA67 STANDARD CHARTERED BANK
015 B00AA67 S
015 C01AA67 BANGKOK
015 D01AA67 THAILAND
015 E04AA67 X
015 A00AA68 CITIBANK, N.A
015 B00AA68 S
015 C01AA68 ISTANBUL
015 D01AA68 TURKEY
015 E04AA68 X
015 A00AA69 STATE STREET BANK AND TRUST COMPANY
015 B00AA69 S
015 C01AA69 LONDON
015 D01AA69 UNITED KINGDOM
015 E04AA69 X
015 A00AA70 CITIBANK, N.A.
015 B00AA70 S
015 C01AA70 MONTEVIDEO
015 D01AA70 URUGUAY
015 E04AA70 X
015 A00AA71 CITIBANK, N.A.
015 B00AA71 S
<PAGE>      PAGE  10
015 C01AA71 CARACAS
015 D01AA71 VENEZUELA
015 E04AA71 X
015 A00AA72 BARCLAYS BANK OF ZAMBIA LIMITED
015 B00AA72 S
015 C01AA72 LUSAKA
015 D01AA72 ZAMBIA
015 E04AA72 X
015 A00AA73 BACLAYS BANK OF ZIMBABWE LIMITED
015 B00AA73 S
015 C01AA73 HARARE
015 D01AA73 ZIMBABWE
015 E04AA73 X
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   43
019 C00AA00 MUNDERFUND
020 A000001 GOLDMAN SACHS & CO.
020 B000001 13-5108880
020 C000001    135
020 A000002 INSTINET INVESTMENT SERVICES
020 B000002 13-2596491
020 C000002     61
020 A000003 MORGAN STANLEY AND COMPANY
020 B000003 13-2655998
020 C000003     52
020 A000004 MERRILL LYNCH PIERCE FENNER & SMITH
020 B000004 13-5674085
020 C000004     41
020 A000005 ALEX BROWN AND SON
020 B000005 52-1319768
020 C000005     39
020 A000006 LEHMAN BROTHERS INC.
020 B000006 13-2518466
020 C000006     39
020 A000007 SMITH BARNEY INC.
020 B000007 13-1912900
020 C000007     38
020 A000008 BEAR STEARNS SECURITIES
020 B000008 13-4946705
020 C000008     30
020 A000009 WEEDEN & CO.
020 B000009 13-3364318
020 C000009     28
020 A000010 PAINE WEBBER INCORPORATED
020 B000010 13-2638166
020 C000010     27
021  000000      964
022 A000001 LEHMAN BROTHERS
022 B000001 13-2518466
022 C000001  27293884
<PAGE>      PAGE  11
022 D000001     37996
022 A000002 STATE STREET BANK & TRUST CO.
022 B000002 04-1867445
022 C000002  13041048
022 D000002       388
022 A000003 MORGAN (J.P.) SECURITIES INC.
022 B000003 13-3224016
022 C000003   7217489
022 D000003      6314
022 A000004 SANWA SECURITIES (USA) CO., L.P.
022 B000004 13-3046258
022 C000004   6307000
022 D000004         0
022 A000005 GOLDMAN SACHS & CO.
022 B000005 13-5108880
022 C000005   4566912
022 D000005     72568
022 A000006 PAINEWEBBER INCORPORATED
022 B000006 13-2638166
022 C000006   3275940
022 D000006     14889
022 A000007 GENERAL MOTORS ACCEPTANCE
022 C000007   2181441
022 D000007         0
022 A000008 NEW CENTER ASSET TRUST
022 C000008   2122527
022 D000008         0
022 A000009 MERRILL LYNCH, PIERCE, FENNER & SMITH
022 B000009 13-5674085
022 C000009   1484772
022 D000009    122256
022 A000010 SALOMON BROTHERS INC.
022 B000010 13-3082694
022 C000010    219493
022 D000010    201740
023 C000000   70612701
023 D000000    1539107
026 A000000 Y
026 B000000 Y
026 C000000 Y
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 Y
037  00AA00 N
038  00AA00      0
039  00AA00 N
040  00AA00 Y
<PAGE>      PAGE  12
041  00AA00 Y
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 Y
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 Y
054 H00AA00 N
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 N
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 Y
055 A00AA00 N
055 B00AA00 N
056  00AA00 Y
057  00AA00 N
077 A000000 N
078  000000 N
080 C00AA00        0
081 B00AA00   0
082 B00AA00        0
083 B00AA00        0
084 B00AA00        0
086 A010000      0
086 A020000      0
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
086 F010000      0
086 F020000      0
024  000100 Y
025 A000101 BANK TOKYO MITSUBISHI
025 C000101 D
025 D000101   50000
025 A000102 BANK OF NOVA SCOTIA
025 C000102 D
025 D000102   45000
025 A000103 SANWA BANK
025 B000103 94-1347393
025 C000103 D
025 D000103   54762
025 A000104 MORGAN GUARANTY TRUST
<PAGE>      PAGE  13
025 B000104 13-5123346
025 C000104 D
025 D000104   19997
025 D000105       0
025 D000106       0
025 D000107       0
025 D000108       0
028 A010100    237809
028 A020100         0
028 A030100         0
028 A040100    207361
028 B010100    222781
028 B020100       383
028 B030100         0
028 B040100    214306
028 C010100    201545
028 C020100       403
028 C030100         0
028 C040100    230411
028 D010100    339894
028 D020100       631
028 D030100         0
028 D040100    358776
028 E010100    280167
028 E020100       507
028 E030100         0
028 E040100    221819
028 F010100    442724
028 F020100       490
028 F030100         0
028 F040100    340706
028 G010100   1724920
028 G020100      2414
028 G030100         0
028 G040100   1573379
028 H000100         0
029  000100 N
030 A000100      0
030 B000100  0.00
030 C000100  0.00
031 A000100      0
031 B000100      0
032  000100      0
033  000100      0
034  000100 N
035  000100      0
036 B000100      0
042 A000100   0
042 B000100   0
042 C000100   0
042 D000100   0
<PAGE>      PAGE  14
042 E000100   0
042 F000100   0
042 G000100   0
042 H000100 100
043  000100    127
044  000100      0
045  000100 Y
046  000100 N
047  000100 Y
048  000100  0.350
048 A010100        0
048 A020100 0.000
048 B010100        0
048 B020100 0.000
048 C010100        0
048 C020100 0.000
048 D010100        0
048 D020100 0.000
048 E010100        0
048 E020100 0.000
048 F010100        0
048 F020100 0.000
048 G010100        0
048 G020100 0.000
048 H010100        0
048 H020100 0.000
048 I010100        0
048 I020100 0.000
048 J010100        0
048 J020100 0.000
048 K010100        0
048 K020100 0.000
049  000100 N
050  000100 N
051  000100 N
052  000100 N
053 A000100 N
058 A000100 N
058 B000100 N
058 C000100 N
058 D000100 N
058 E000100 N
059  000100 Y
060 A000100 Y
060 B000100 Y
061  000100      250
062 A000100 Y
062 B000100   0.0
062 C000100   0.0
062 D000100  21.2
062 E000100   0.0
<PAGE>      PAGE  15
062 F000100  16.4
062 G000100   0.0
062 H000100   0.0
062 I000100  57.4
062 J000100   0.0
062 K000100   0.0
062 L000100   6.2
062 M000100   0.0
062 N000100   0.0
062 O000100   0.0
062 P000100   0.0
062 Q000100   0.0
062 R000100   0.0
063 A000100  26
063 B000100  0.0
064 A000100 N
064 B000100 N
066 A000100 N
067  000100 N
068 A000100 N
068 B000100 N
069  000100 N
070 A010100 Y
070 A020100 Y
070 B010100 N
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 N
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 N
070 K010100 Y
070 K020100 N
070 L010100 Y
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 Y
070 N020100 N
070 O010100 Y
<PAGE>      PAGE  16
070 O020100 N
070 P010100 Y
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100         0
071 B000100         0
071 C000100         0
071 D000100    0
072 A000100  6
072 B000100    29241
072 C000100        0
072 D000100        0
072 E000100        0
072 F000100     1797
072 G000100      554
072 H000100        0
072 I000100       70
072 J000100      115
072 K000100        0
072 L000100        0
072 M000100       15
072 N000100       24
072 O000100        0
072 P000100        0
072 Q000100        0
072 R000100       35
072 S000100        8
072 T000100      598
072 U000100        0
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<PAGE>      PAGE  23
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<PAGE>      PAGE  24
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<PAGE>      PAGE  27
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<PAGE>      PAGE  35
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<PAGE>      PAGE  36
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025 B000701 13-3112953
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025 A000703 FIRST CHICAGO CORP.
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025 C000703 E
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025 A000704 MERRILL LYNCH & CO., INC.
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<PAGE>      PAGE  37
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042 G000700   0
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<PAGE>      PAGE  38
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058 C000700 N
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<PAGE>      PAGE  39
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066 C000700 N
066 D000700 N
066 E000700 Y
066 F000700 N
066 G000700 N
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068 A000700 N
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070 E020700 N
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070 F020700 Y
070 G010700 Y
070 G020700 N
070 H010700 Y
070 H020700 N
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070 I020700 N
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070 J020700 N
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070 N020700 N
070 O010700 Y
070 O020700 N
070 P010700 Y
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070 Q010700 N
<PAGE>      PAGE  40
070 Q020700 N
070 R010700 N
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<PAGE>      PAGE  41
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<PAGE>      PAGE  42
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<PAGE>      PAGE  43
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050  000800 N
051  000800 N
052  000800 N
053 A000800 N
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058 B000800 N
058 C000800 N
058 D000800 N
058 E000800 N
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066 E000800 N
066 F000800 N
066 G000800 N
<PAGE>      PAGE  44
067  000800 N
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070 E020800 N
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070 H010800 Y
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070 I020800 N
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070 J020800 N
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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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050  000900 N
<PAGE>      PAGE  48
051  000900 N
052  000900 N
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064 B000900 N
066 A000900 N
067  000900 N
068 A000900 N
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070 A020900 Y
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070 F020900 N
<PAGE>      PAGE  49
070 G010900 Y
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070 H020900 N
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070 I020900 N
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070 J020900 N
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070 K020900 N
070 L010900 Y
070 L020900 N
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070 M020900 N
070 N010900 Y
070 N020900 N
070 O010900 Y
070 O020900 N
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070 R020900 N
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<PAGE>      PAGE  50
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024  001000 N
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<PAGE>      PAGE  51
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<PAGE>      PAGE  52
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<PAGE>      PAGE  53
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063 B001000 15.3
064 A001000 N
064 B001000 N
066 A001000 N
067  001000 N
068 A001000 N
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070 A021000 Y
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070 I021000 N
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070 J021000 N
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070 L021000 Y
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<PAGE>      PAGE  54
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072 D001000        0
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072 G001000      101
072 H001000        0
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072 J001000       26
072 K001000        0
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<PAGE>      PAGE  55
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074 J001000      246
074 K001000        0
074 L001000     5236
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074 N001000   256540
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074 X001000       99
074 Y001000        0
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024  001100 N
025 D001101       0
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025 D001105       0
025 D001106       0
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<PAGE>      PAGE  56
028 D021100         8
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029  001100 Y
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033  001100      0
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045  001100 Y
046  001100 N
047  001100 Y
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048 B021100 0.000
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048 C021100 0.000
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048 D021100 0.000
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<PAGE>      PAGE  57
048 E021100 0.000
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048 F021100 0.000
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048 H011100        0
048 H021100 0.000
048 I011100        0
048 I021100 0.000
048 J011100        0
048 J021100 0.000
048 K011100        0
048 K021100 0.000
049  001100 N
050  001100 N
051  001100 N
052  001100 N
053 A001100 N
058 A001100 N
058 B001100 N
058 C001100 N
058 D001100 N
058 E001100 N
059  001100 Y
060 A001100 N
060 B001100 N
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062 A001100 Y
062 B001100   0.0
062 C001100   0.0
062 D001100   0.0
062 E001100   0.0
062 F001100   0.0
062 G001100   0.0
062 H001100   0.0
062 I001100   0.0
062 J001100   0.0
062 K001100   0.0
062 L001100   1.6
062 M001100   0.0
062 N001100   0.0
062 O001100  98.4
062 P001100   0.0
062 Q001100   0.0
062 R001100   0.0
063 A001100   0
063 B001100  5.9
064 A001100 N
064 B001100 N
066 A001100 N
067  001100 N
<PAGE>      PAGE  58
068 A001100 N
068 B001100 N
069  001100 N
070 A011100 Y
070 A021100 N
070 B011100 N
070 B021100 N
070 C011100 N
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
070 I011100 N
070 I021100 N
070 J011100 Y
070 J021100 N
070 K011100 Y
070 K021100 Y
070 L011100 Y
070 L021100 N
070 M011100 N
070 M021100 N
070 N011100 Y
070 N021100 N
070 O011100 Y
070 O021100 N
070 P011100 Y
070 P021100 N
070 Q011100 N
070 Q021100 N
070 R011100 N
070 R021100 N
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<PAGE>      PAGE  59
072 I001100       30
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073 A021100   0.0000
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073 C001100   0.0000
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074 B001100        0
074 C001100     4456
074 D001100   301861
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074 F001100        0
074 G001100        0
074 H001100        0
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<PAGE>      PAGE  60
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074 X001100      133
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075 A001100        0
075 B001100   306031
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024  001200 N
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025 D001202       0
025 D001203       0
025 D001204       0
025 D001205       0
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028 B031200         0
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028 D031200         0
028 D041200      6702
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028 E031200         0
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028 F021200        58
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028 F041200      3743
028 G011200     41821
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028 G031200         0
028 G041200     37564
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029  001200 Y
030 A001200      3
<PAGE>      PAGE  61
030 B001200  5.50
030 C001200  0.00
031 A001200      0
031 B001200      0
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033  001200      0
034  001200 Y
035  001200      1
036 A001200 N
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042 B001200   0
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042 D001200   0
042 E001200   0
042 F001200   0
042 G001200   0
042 H001200 100
043  001200      2
044  001200      0
045  001200 Y
046  001200 N
047  001200 Y
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048 A021200 0.000
048 B011200        0
048 B021200 0.000
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048 C021200 0.000
048 D011200        0
048 D021200 0.000
048 E011200        0
048 E021200 0.000
048 F011200        0
048 F021200 0.000
048 G011200        0
048 G021200 0.000
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048 H021200 0.000
048 I011200        0
048 I021200 0.000
048 J011200        0
048 J021200 0.000
048 K011200        0
048 K021200 0.000
049  001200 N
050  001200 N
051  001200 N
052  001200 N
053 A001200 N
<PAGE>      PAGE  62
058 A001200 N
058 B001200 N
058 C001200 N
058 D001200 N
058 E001200 N
059  001200 Y
060 A001200 Y
060 B001200 Y
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062 A001200 N
062 B001200   0.0
062 C001200   0.0
062 D001200   0.0
062 E001200   0.0
062 F001200   0.0
062 G001200   0.0
062 H001200   0.0
062 I001200   0.0
062 J001200   0.0
062 K001200   0.0
062 L001200   0.0
062 M001200   0.0
062 N001200   0.0
062 O001200   0.0
062 P001200   0.0
062 Q001200   0.0
062 R001200   0.0
063 A001200   0
063 B001200  0.0
066 A001200 N
067  001200 Y
068 A001200 N
068 B001200 N
069  001200 N
070 A011200 Y
070 A021200 Y
070 B011200 Y
070 B021200 N
070 C011200 Y
070 C021200 N
070 D011200 Y
070 D021200 N
070 E011200 Y
070 E021200 N
070 F011200 Y
070 F021200 N
070 G011200 Y
070 G021200 N
070 H011200 Y
070 H021200 N
070 I011200 N
<PAGE>      PAGE  63
070 I021200 N
070 J011200 Y
070 J021200 Y
070 K011200 Y
070 K021200 N
070 L011200 Y
070 L021200 Y
070 M011200 Y
070 M021200 N
070 N011200 Y
070 N021200 N
070 O011200 Y
070 O021200 N
070 P011200 Y
070 P021200 N
070 Q011200 N
070 Q021200 N
070 R011200 N
070 R021200 N
071 A001200     36931
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072 X001200      412
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<PAGE>      PAGE  64
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073 A021200   0.0000
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074 D001200    31148
074 E001200        0
074 F001200    38237
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074 R041200     1212
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074 W001200   0.0000
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074 Y001200        0
075 A001200        0
075 B001200    79730
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024  001300 N
025 D001301       0
025 D001302       0
025 D001303       0
025 D001304       0
025 D001305       0
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025 D001308       0
<PAGE>      PAGE  65
028 A011300      1610
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029  001300 Y
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031 B001300      0
032  001300      1
033  001300      0
034  001300 Y
035  001300      0
036 A001300 N
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042 F001300   0
042 G001300   0
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043  001300      3
044  001300      0
<PAGE>      PAGE  66
045  001300 Y
046  001300 N
047  001300 Y
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048 I021300 0.000
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048 J021300 0.000
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048 K021300 0.000
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050  001300 N
051  001300 N
052  001300 N
053 A001300 N
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058 C001300 N
058 D001300 N
058 E001300 N
059  001300 Y
060 A001300 N
060 B001300 N
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062 A001300 Y
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062 H001300   0.0
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<PAGE>      PAGE  67
062 L001300   2.3
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062 O001300  97.7
062 P001300   0.0
062 Q001300   0.0
062 R001300   0.0
063 A001300   0
063 B001300 19.1
064 A001300 Y
064 B001300 N
066 A001300 N
067  001300 N
068 A001300 N
068 B001300 N
069  001300 N
070 A011300 Y
070 A021300 N
070 B011300 N
070 B021300 N
070 C011300 N
070 C021300 N
070 D011300 N
070 D021300 N
070 E011300 N
070 E021300 N
070 F011300 N
070 F021300 N
070 G011300 N
070 G021300 N
070 H011300 N
070 H021300 N
070 I011300 N
070 I021300 N
070 J011300 Y
070 J021300 N
070 K011300 Y
070 K021300 Y
070 L011300 Y
070 L021300 N
070 M011300 N
070 M021300 N
070 N011300 Y
070 N021300 N
070 O011300 Y
070 O021300 N
070 P011300 Y
070 P021300 N
070 Q011300 N
070 Q021300 N
070 R011300 N
<PAGE>      PAGE  68
070 R021300 N
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073 B001300   0.0176
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074 D001300    50734
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<PAGE>      PAGE  69
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075 A001300        0
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024  001400 Y
025 A001401 BANK AMERICA CORP.
025 B001401 36-0947896
025 C001401 E
025 D001401    4526
025 D001402       0
025 D001403       0
025 D001404       0
025 D001405       0
025 D001406       0
025 D001407       0
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<PAGE>      PAGE  70
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033  001400      0
034  001400 Y
035  001400      1
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044  001400      0
045  001400 Y
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047  001400 Y
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<PAGE>      PAGE  71
048 F021400 0.000
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048 I021400 0.000
048 J011400        0
048 J021400 0.000
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048 K021400 0.000
049  001400 N
050  001400 N
051  001400 N
052  001400 N
053 A001400 N
058 A001400 N
058 B001400 N
058 C001400 N
058 D001400 N
058 E001400 N
059  001400 Y
060 A001400 Y
060 B001400 Y
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062 A001400 N
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062 D001400   0.0
062 E001400   0.0
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062 H001400   0.0
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062 J001400   0.0
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062 P001400   0.0
062 Q001400   0.0
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066 A001400 Y
066 B001400 N
066 C001400 N
066 D001400 N
066 E001400 Y
066 F001400 N
<PAGE>      PAGE  72
066 G001400 N
067  001400 N
068 A001400 N
068 B001400 N
069  001400 N
070 A011400 Y
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070 C011400 Y
070 C021400 N
070 D011400 Y
070 D021400 N
070 E011400 Y
070 E021400 N
070 F011400 Y
070 F021400 N
070 G011400 Y
070 G021400 N
070 H011400 Y
070 H021400 N
070 I011400 N
070 I021400 N
070 J011400 Y
070 J021400 N
070 K011400 Y
070 K021400 N
070 L011400 Y
070 L021400 Y
070 M011400 Y
070 M021400 N
070 N011400 Y
070 N021400 N
070 O011400 Y
070 O021400 N
070 P011400 Y
070 P021400 N
070 Q011400 N
070 Q021400 N
070 R011400 N
070 R021400 N
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<PAGE>      PAGE  73
072 G001400      137
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072 I001400       25
072 J001400       35
072 K001400        0
072 L001400        0
072 M001400        4
072 N001400       16
072 O001400        0
072 P001400        0
072 Q001400        0
072 R001400        9
072 S001400        2
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072 U001400        1
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072 X001400     1491
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072 Z001400     2396
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073 A011400   0.1800
073 A021400   0.1600
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073 C001400   0.0000
074 A001400        1
074 B001400    13788
074 C001400        0
074 D001400    14725
074 E001400    10598
074 F001400   193881
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074 H001400        0
074 I001400        0
074 J001400     1890
074 K001400        0
074 L001400      864
074 M001400       32
074 N001400   235779
074 O001400     2912
074 P001400      196
074 Q001400        0
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074 R021400        0
074 R031400        0
<PAGE>      PAGE  74
074 R041400      205
074 S001400        0
074 T001400   232466
074 U011400     2021
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074 V021400     0.00
074 W001400   0.0000
074 X001400      213
074 Y001400        0
075 A001400        0
075 B001400   251634
076  001400     0.00
024  001500 N
025 D001501       0
025 D001502       0
025 D001503       0
025 D001504       0
025 D001505       0
025 D001506       0
025 D001507       0
025 D001508       0
028 A011500      9784
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028 A031500         0
028 A041500      2402
028 B011500      5781
028 B021500         5
028 B031500         0
028 B041500      1866
028 C011500      7370
028 C021500         7
028 C031500         0
028 C041500      2964
028 D011500      4673
028 D021500         7
028 D031500         0
028 D041500      4454
028 E011500      4437
028 E021500         9
028 E031500         0
028 E041500      2728
028 F011500      4595
028 F021500        30
028 F031500         0
028 F041500      2194
028 G011500     36640
028 G021500        63
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028 G041500     16608
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<PAGE>      PAGE  75
029  001500 Y
030 A001500      0
030 B001500  4.00
030 C001500  0.00
031 A001500      0
031 B001500      0
032  001500      0
033  001500      0
034  001500 Y
035  001500      0
036 A001500 N
036 B001500      0
042 A001500   0
042 B001500   0
042 C001500   0
042 D001500   0
042 E001500   0
042 F001500   0
042 G001500   0
042 H001500 100
043  001500      9
044  001500      0
045  001500 Y
046  001500 N
047  001500 Y
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048 A011500        0
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048 B011500        0
048 B021500 0.000
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048 D021500 0.000
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048 E021500 0.000
048 F011500        0
048 F021500 0.000
048 G011500        0
048 G021500 0.000
048 H011500        0
048 H021500 0.000
048 I011500        0
048 I021500 0.000
048 J011500        0
048 J021500 0.000
048 K011500        0
048 K021500 0.000
049  001500 N
050  001500 N
051  001500 N
<PAGE>      PAGE  76
052  001500 N
053 A001500 N
058 A001500 N
058 B001500 N
058 C001500 N
058 D001500 N
058 E001500 N
059  001500 Y
060 A001500 Y
060 B001500 Y
061  001500      250
062 A001500 Y
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062 C001500   0.0
062 D001500   2.9
062 E001500   0.0
062 F001500   0.0
062 G001500   0.0
062 H001500   0.0
062 I001500   0.0
062 J001500   0.0
062 K001500   0.0
062 L001500   0.7
062 M001500  11.9
062 N001500  81.1
062 O001500   0.0
062 P001500   1.6
062 Q001500   1.8
062 R001500   0.0
063 A001500   0
063 B001500  8.1
064 A001500 N
064 B001500 N
066 A001500 N
067  001500 N
068 A001500 N
068 B001500 N
069  001500 N
070 A011500 Y
070 A021500 Y
070 B011500 Y
070 B021500 N
070 C011500 Y
070 C021500 N
070 D011500 Y
070 D021500 N
070 E011500 Y
070 E021500 N
070 F011500 Y
070 F021500 N
070 G011500 Y
<PAGE>      PAGE  77
070 G021500 N
070 H011500 Y
070 H021500 N
070 I011500 N
070 I021500 N
070 J011500 Y
070 J021500 N
070 K011500 Y
070 K021500 Y
070 L011500 Y
070 L021500 N
070 M011500 Y
070 M021500 N
070 N011500 Y
070 N021500 N
070 O011500 Y
070 O021500 N
070 P011500 Y
070 P021500 N
070 Q011500 N
070 Q021500 N
070 R011500 N
070 R021500 N
071 A001500    128663
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072 B001500     9468
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072 E001500        0
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072 J001500       36
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072 Q001500        0
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072 X001500     1235
<PAGE>      PAGE  78
072 Y001500        0
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073 A021500   0.0000
073 B001500   0.0561
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074 F001500        0
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074 H001500        0
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024  001600 N
025 D001601       0
025 D001602       0
025 D001603       0
025 D001604       0
<PAGE>      PAGE  79
025 D001605       0
025 D001606       0
025 D001607       0
025 D001608       0
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028 B011600      2053
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028 B041600      1945
028 C011600      4288
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029  001600 Y
030 A001600      0
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032  001600      0
033  001600      0
034  001600 Y
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<PAGE>      PAGE  80
042 G001600   0
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048 E021600 0.000
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049  001600 N
050  001600 N
051  001600 N
052  001600 N
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058 D001600 N
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<PAGE>      PAGE  81
062 H001600   0.0
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062 O001600  98.2
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062 Q001600   0.0
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063 A001600   0
063 B001600 19.2
064 A001600 Y
064 B001600 N
066 A001600 N
067  001600 N
068 A001600 N
068 B001600 N
069  001600 N
070 A011600 Y
070 A021600 N
070 B011600 N
070 B021600 N
070 C011600 N
070 C021600 N
070 D011600 N
070 D021600 N
070 E011600 N
070 E021600 N
070 F011600 N
070 F021600 N
070 G011600 N
070 G021600 N
070 H011600 N
070 H021600 N
070 I011600 N
070 I021600 N
070 J011600 Y
070 J021600 N
070 K011600 Y
070 K021600 N
070 L011600 Y
070 L021600 N
070 M011600 N
070 M021600 N
070 N011600 Y
070 N021600 N
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070 O021600 N
070 P011600 Y
<PAGE>      PAGE  82
070 P021600 N
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<PAGE>      PAGE  83
074 F001600        0
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SIGNATURE   BILL BESTON                                  
TITLE       AVP                 
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER ACCELERATING GROWTH FUND
<SERIES>
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   <NAME> CLASS A
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER ACCELERATING GROWTH FUND
<SERIES>
   <NUMBER> 052
   <NAME> CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER ACCELERATING GROWTH FUND
<SERIES>
   <NUMBER> 053
   <NAME> CLASS C
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER ACCELERATING GROWTH FUND
<SERIES>
   <NUMBER> 054
   <NAME> CLASS K
<MULTIPLIER> 1
       
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER ACCELERATING GROWTH FUND
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   <NAME> CLASS Y
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INTERNATIONAL EQUITY FUND
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   <NUMBER> 081
   <NAME> CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INTERNATIONAL EQUITY FUND
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   <NUMBER> 082
   <NAME> CLASS B
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INTERNATIONAL EQUITY FUND
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   <NUMBER> 083
   <NAME> CLASS C
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INTERNATIONAL EQUITY FUND
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   <NUMBER> 084
   <NAME> CLASS K
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INTERNATIONAL EQUITY FUND
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   <NUMBER> 085
   <NAME> CLASS Y
<MULTIPLIER> 1
       
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER TAX-FREE INTERMEDIATE BOND FUND
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER TAX-FREE INTERMEDIATE BOND FUND
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   <NUMBER> 112
   <NAME> CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER TAX-FREE INTERMEDIATE BOND FUND
<SERIES>
   <NUMBER> 114
   <NAME> CLASS K
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER TAX-FREE INTERMEDIATE BOND FUND
<SERIES>
   <NUMBER> 115
   <NAME> CLASS Y
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        296597867
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<SHARES-COMMON-STOCK>                           724871
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BALANCED FUND
<SERIES>
   <NUMBER> 121
   <NAME> CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                         69837955
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BALANCED FUND
<SERIES>
   <NUMBER> 122
   <NAME> CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BALANCED FUND
<SERIES>
   <NUMBER> 123
   <NAME> CLASS C
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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<PERIOD-START>                             JUL-01-1997
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<INVESTMENTS-AT-VALUE>                        81244010
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BALANCED FUND
<SERIES>
   <NUMBER> 124
   <NAME> CLASS K
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BALANCED FUND
<SERIES>
   <NUMBER> 125
   <NAME> CLASS Y
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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<PERIOD-START>                             JUL-01-1997
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<NAME> MUNDER U.S. GOVERNMENT INCOME FUND
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</TABLE>

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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BOND FUND
<SERIES>
   <NUMBER> 101
   <NAME> CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BOND FUND
<SERIES>
   <NUMBER> 102
   <NAME> CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BOND FUND
<SERIES>
   <NUMBER> 103
   <NAME> CLASS C
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BOND FUND
<SERIES>
   <NUMBER> 104
   <NAME> CLASS K
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER BOND FUND
<SERIES>
   <NUMBER> 105
   <NAME> CLASS Y
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER CASH INVESTMENT FUND
<SERIES>
   <NUMBER> 011
   <NAME> CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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<PERIOD-START>                             JUL-01-1997
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER CASH INVESTMENT FUND
<SERIES>
   <NUMBER> 0141
   <NAME> CLASS K
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<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

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<CIK> 0000855022
<NAME> MUNDER CASH INVESTMENT FUND
<SERIES>
   <NUMBER> 015
   <NAME> CLASS Y
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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<OVERDISTRIBUTION-GAINS>                        (4951)
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<INTEREST-INCOME>                             29241499
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<EXPENSES-NET>                               (3216430)
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<NUMBER-OF-SHARES-REDEEMED>                (277405007)
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<GROSS-EXPENSE>                                3216000
<AVERAGE-NET-ASSETS>                         294739000
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                   0.03
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<PER-SHARE-DIVIDEND>                            (0.03)
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<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   0.51
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INDEX 500 FUND
<SERIES>
   <NUMBER> 071
   <NAME> CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        467421419
<INVESTMENTS-AT-VALUE>                       619261640
<RECEIVABLES>                                  8990606
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                             45818
<TOTAL-ASSETS>                               628298064
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                     14845949
<TOTAL-LIABILITIES>                           14845949
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     458887567
<SHARES-COMMON-STOCK>                          6388049
<SHARES-COMMON-PRIOR>                          4248772
<ACCUMULATED-NII-CURRENT>                       132155
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<DIVIDEND-INCOME>                              4752279
<INTEREST-INCOME>                               896286
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (1212062)
<NET-INVESTMENT-INCOME>                        4436503
<REALIZED-GAINS-CURRENT>                      28773409
<APPREC-INCREASE-CURRENT>                     25527996
<NET-CHANGE-FROM-OPS>                         58737908
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (862406)
<DISTRIBUTIONS-OF-GAINS>                    (10783436)
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<NUMBER-OF-SHARES-REDEEMED>                   (906656)
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<ACCUMULATED-NII-PRIOR>                          49935
<ACCUMULATED-GAINS-PRIOR>                     27251181
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<PER-SHARE-NAV-BEGIN>                            20.94
<PER-SHARE-NII>                                   0.17
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<EXPENSE-RATIO>                                   0.39
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INDEX 500 FUND
<SERIES>
   <NUMBER> 072
   <NAME> CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        467421419
<INVESTMENTS-AT-VALUE>                       619261640
<RECEIVABLES>                                  8990606
<ASSETS-OTHER>                                       0
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<TOTAL-ASSETS>                               628298064
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                     14845949
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     458887567
<SHARES-COMMON-STOCK>                          4154114
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<NET-INVESTMENT-INCOME>                        4436503
<REALIZED-GAINS-CURRENT>                      28773409
<APPREC-INCREASE-CURRENT>                     25527996
<NET-CHANGE-FROM-OPS>                         58737908
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INDEX 500 FUND
<SERIES>
   <NUMBER> 074
   <NAME> CLASS K
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        467421419
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<PAYABLE-FOR-SECURITIES>                             0
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<SENIOR-EQUITY>                                      0
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<DIVIDEND-INCOME>                              4752279
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<NET-INVESTMENT-INCOME>                        4436503
<REALIZED-GAINS-CURRENT>                      28773409
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<NET-CHANGE-FROM-OPS>                         58737908
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (688818)
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<NUMBER-OF-SHARES-SOLD>                        3446501
<NUMBER-OF-SHARES-REDEEMED>                   (683268)
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INDEX 500 FUND
<SERIES>
   <NUMBER> 075
   <NAME> CLASS Y
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        467421419
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<SENIOR-EQUITY>                                      0
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<SHARES-COMMON-STOCK>                         13050642
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<DIVIDEND-INCOME>                              4752279
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<REALIZED-GAINS-CURRENT>                      28773409
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<NET-CHANGE-FROM-OPS>                         58737908
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (2476859)
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<NUMBER-OF-SHARES-REDEEMED>                  (5659696)
<SHARES-REINVESTED>                              31416 
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<ACCUMULATED-NII-PRIOR>                          49935
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<GROSS-EXPENSE>                                1451000
<AVERAGE-NET-ASSETS>                         311529000 
<PER-SHARE-NAV-BEGIN>                            20.97
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER GROWTH & INCOME FUND
<SERIES>
   <NUMBER> 141
   <NAME> CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
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<ACCUMULATED-NII-CURRENT>                        88529
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<NUMBER-OF-SHARES-REDEEMED>                   (683766)
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER GROWTH & INCOME FUND
<SERIES>
   <NUMBER> 142
   <NAME> CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER GROWTH & INCOME FUND
<SERIES>
   <NUMBER> 143
   <NAME> CLASS C
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
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<PER-SHARE-NAV-END>                              14.56
<EXPENSE-RATIO>                                   1.95
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER GROWTH & INCOME FUND
<SERIES>
   <NUMBER> 144
   <NAME> CLASS K
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        181322084
<INVESTMENTS-AT-VALUE>                       232992060
<RECEIVABLES>                                  2753528
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<PAYABLE-FOR-SECURITIES>                       2911680
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       401343
<TOTAL-LIABILITIES>                            3313023
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     165883406
<SHARES-COMMON-STOCK>                         13279701
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<INTEREST-INCOME>                               529266
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<NET-INVESTMENT-INCOME>                        2396454
<REALIZED-GAINS-CURRENT>                      33484865
<APPREC-INCREASE-CURRENT>                    (1873936)
<NET-CHANGE-FROM-OPS>                         34007383
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (2076265)
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<NUMBER-OF-SHARES-REDEEMED>                  (1244451)
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<NET-CHANGE-IN-ASSETS>                      (14692369)
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<ACCUMULATED-GAINS-PRIOR>                     20559837
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<GROSS-EXPENSE>                                1491000
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<PER-SHARE-NAV-BEGIN>                            15.23
<PER-SHARE-NII>                                   0.15
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<EXPENSE-RATIO>                                   1.20
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER GROWTH & INCOME FUND
<SERIES>
   <NUMBER> 145
   <NAME> CLASS Y
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        181322084
<INVESTMENTS-AT-VALUE>                       232992060
<RECEIVABLES>                                  2753528
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                             33195
<TOTAL-ASSETS>                               235778783
<PAYABLE-FOR-SECURITIES>                       2911680
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       401343
<TOTAL-LIABILITIES>                            3313023
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     165883406
<SHARES-COMMON-STOCK>                          2021407
<SHARES-COMMON-PRIOR>                          1948359
<ACCUMULATED-NII-CURRENT>                        88529
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<EXPENSES-NET>                               (1491361)
<NET-INVESTMENT-INCOME>                        2396454
<REALIZED-GAINS-CURRENT>                      33484865
<APPREC-INCREASE-CURRENT>                    (1873936)
<NET-CHANGE-FROM-OPS>                         34007383
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (311917)
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<NUMBER-OF-SHARES-REDEEMED>                   (454868)
<SHARES-REINVESTED>                               5318
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<ACCUMULATED-GAINS-PRIOR>                     20559837
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<GROSS-EXPENSE>                                1491000
<AVERAGE-NET-ASSETS>                          29090000
<PER-SHARE-NAV-BEGIN>                            15.23
<PER-SHARE-NII>                                   0.18
<PER-SHARE-GAIN-APPREC>                           1.98
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<EXPENSE-RATIO>                                   0.95
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER SMALL COMPANY GROWTH FUND
<SERIES>
   <NUMBER> 061
   <NAME> CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        374311993
<INVESTMENTS-AT-VALUE>                       421900823
<RECEIVABLES>                                  5674560
<ASSETS-OTHER>                                   33698
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               427609081
<PAYABLE-FOR-SECURITIES>                        984975
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       546641
<TOTAL-LIABILITIES>                            1531616
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     344617934
<SHARES-COMMON-STOCK>                          1617512
<SHARES-COMMON-PRIOR>                           539026
<ACCUMULATED-NII-CURRENT>                    (1019615)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       34890316
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      47588830
<NET-ASSETS>                                 426077465
<DIVIDEND-INCOME>                               310935
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<EXPENSES-NET>                               (2189759)
<NET-INVESTMENT-INCOME>                      (1019615)
<REALIZED-GAINS-CURRENT>                      68189697
<APPREC-INCREASE-CURRENT>                   (17225456)
<NET-CHANGE-FROM-OPS>                         49944626
<EQUALIZATION>                                       0
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<DISTRIBUTIONS-OF-GAINS>                     (2406705)
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<NUMBER-OF-SHARES-SOLD>                       19563506
<NUMBER-OF-SHARES-REDEEMED>                 (18570609)
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<ACCUMULATED-NII-PRIOR>                              0
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<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2190000
<AVERAGE-NET-ASSETS>                          21689000
<PER-SHARE-NAV-BEGIN>                            21.61
<PER-SHARE-NII>                                 (0.07)
<PER-SHARE-GAIN-APPREC>                           2.90
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<PER-SHARE-DISTRIBUTIONS>                       (4.11)
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<EXPENSE-RATIO>                                   1.22
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER SMALL COMPANY GROWTH FUND
<SERIES>
   <NUMBER> 062
   <NAME> CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        374311993
<INVESTMENTS-AT-VALUE>                       421900823
<RECEIVABLES>                                  5674560
<ASSETS-OTHER>                                   33698
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               427609081
<PAYABLE-FOR-SECURITIES>                        984975
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       546641
<TOTAL-LIABILITIES>                            1531616
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     344617934
<SHARES-COMMON-STOCK>                           563129
<SHARES-COMMON-PRIOR>                           272415
<ACCUMULATED-NII-CURRENT>                    (1019615)
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<ACCUMULATED-NET-GAINS>                       34890316
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      47588830
<NET-ASSETS>                                 426077465
<DIVIDEND-INCOME>                               310935
<INTEREST-INCOME>                               859209
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (2189759)
<NET-INVESTMENT-INCOME>                      (1019615)
<REALIZED-GAINS-CURRENT>                      68189697
<APPREC-INCREASE-CURRENT>                   (17225456)
<NET-CHANGE-FROM-OPS>                         49944626
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                     (1802078)
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<NUMBER-OF-SHARES-SOLD>                         312973
<NUMBER-OF-SHARES-REDEEMED>                    (43340)
<SHARES-REINVESTED>                              21081
<NET-CHANGE-IN-ASSETS>                       100888248
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     38696712
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2190000
<AVERAGE-NET-ASSETS>                           8838000
<PER-SHARE-NAV-BEGIN>                            21.05
<PER-SHARE-NII>                                 (0.16)
<PER-SHARE-GAIN-APPREC>                           2.81
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<PER-SHARE-DISTRIBUTIONS>                       (4.11)
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<EXPENSE-RATIO>                                   1.97
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER SMALL COMPANY GROWTH FUND
<SERIES>
   <NUMBER> 063
   <NAME> CLASS C
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        374311993
<INVESTMENTS-AT-VALUE>                       421900823
<RECEIVABLES>                                  5674560
<ASSETS-OTHER>                                   33698
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<TOTAL-ASSETS>                               427609081
<PAYABLE-FOR-SECURITIES>                        984975
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       546641
<TOTAL-LIABILITIES>                            1531616
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     344617934
<SHARES-COMMON-STOCK>                           231489
<SHARES-COMMON-PRIOR>                           106500
<ACCUMULATED-NII-CURRENT>                    (1019615)
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<ACCUMULATED-NET-GAINS>                       34890316
<OVERDISTRIBUTION-GAINS>                             0
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<EXPENSES-NET>                               (2189759)
<NET-INVESTMENT-INCOME>                      (1019615)
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<APPREC-INCREASE-CURRENT>                   (17225456)
<NET-CHANGE-FROM-OPS>                         49944626
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                      (739949)
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<NUMBER-OF-SHARES-SOLD>                         638640
<NUMBER-OF-SHARES-REDEEMED>                   (525366)
<SHARES-REINVESTED>                              11715
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<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     38696712
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2190000
<AVERAGE-NET-ASSETS>                           4255000
<PER-SHARE-NAV-BEGIN>                            21.32
<PER-SHARE-NII>                                 (0.16)
<PER-SHARE-GAIN-APPREC>                           2.84
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<EXPENSE-RATIO>                                   1.97
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER SMALL COMPANY GROWTH FUND
<SERIES>
   <NUMBER> 064
   <NAME> CLASS K
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        374311993
<INVESTMENTS-AT-VALUE>                       421900823
<RECEIVABLES>                                  5674560
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<TOTAL-ASSETS>                               427609081
<PAYABLE-FOR-SECURITIES>                        984975
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       546641
<TOTAL-LIABILITIES>                            1531616
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     344617934
<SHARES-COMMON-STOCK>                          7847490
<SHARES-COMMON-PRIOR>                          7065672
<ACCUMULATED-NII-CURRENT>                    (1019615)
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<NUMBER-OF-SHARES-REDEEMED>                  (8867072)
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<PER-SHARE-NAV-BEGIN>                            21.62
<PER-SHARE-NII>                                 (0.07)
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<EXPENSE-RATIO>                                   1.22
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER SMALL COMPANY GROWTH FUND
<SERIES>
   <NUMBER> 065
   <NAME> CLASS Y
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                        374311993
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<NUMBER-OF-SHARES-REDEEMED>                  (1412647)
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<PER-SHARE-NAV-BEGIN>                            21.84
<PER-SHARE-NII>                                 (0.04)
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER INTERMEDIATE BOND FUND
<SERIES>
   <NUMBER> 090
   <NAME> MUNDER INTERMEDIATE BOND FUND
<MULTIPLIER> 1
       
<S>                             <C>                     <C>                     <C>                     <C>
<C>
<PERIOD-TYPE>                   6-MOS                   6-MOS                   6-MOS                   6-MOS
6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998             JUN-30-1998             JUN-30-1998             JUN-30-1998
             JUN-30-1998
<PERIOD-START>                             JUL-01-1997             JUL-01-1997             JUL-01-1997             JUL-01-1997
             JUL-01-1997
<PERIOD-END>                               DEC-31-1997             DEC-31-1997             DEC-31-1997             DEC-31-1997
             DEC-31-1997
<INVESTMENTS-AT-COST>                        554434749               554434749               554434749               554434749
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                   45232
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                       0
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                       0
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                       0
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                  914261
<TOTAL-LIABILITIES>                             914261                  914261                  914261                  914261
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                       0
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               585526419
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                21699066
<SHARES-COMMON-PRIOR>                           654077                   49795                    6227                34884397
                17328408
<ACCUMULATED-NII-CURRENT>                      (48922)                 (48922)                 (48922)                 (48922)
                 (48922)
<OVERDISTRIBUTION-NII>                               0                       0                       0                       0
                       0
<ACCUMULATED-NET-GAINS>                     (22930261)              (22930261)              (22930261)              (22930261)
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                       0
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                 4835427
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               567382663
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                       0
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                18079697
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                       0
<EXPENSES-NET>                               (2268410)               (2268410)               (2268410)               (2268410)
               (2268410)
<NET-INVESTMENT-INCOME>                       15811287                15811287                15811287                15811287
                15811287
<REALIZED-GAINS-CURRENT>                        820593                  820593                  820593                  820593
                  820593
<APPREC-INCREASE-CURRENT>                      6449754                 6449754                 6449754                 6449754
                 6449754
<NET-CHANGE-FROM-OPS>                         23081634                23081634                23081634                23081634
                23081634
<EQUALIZATION>                                       0                       0                       0                       0
                       0
<DISTRIBUTIONS-OF-INCOME>                     (197288)                 (11733)                  (5602)              (10079111)
               (5586060)
<DISTRIBUTIONS-OF-GAINS>                             0                       0                       0                       0
                       0
<DISTRIBUTIONS-OTHER>                                0                       0                       0                       0
                       0
<NUMBER-OF-SHARES-SOLD>                        3543288                   28886                  233366                 5026214
                 6440120
<NUMBER-OF-SHARES-REDEEMED>                  (3453662)                 (17905)                (150036)               (2545870)
               (2073696)
<SHARES-REINVESTED>                              16109                     390                     443                    1435
                    4234
<NET-CHANGE-IN-ASSETS>                        73819138                73819138                73819138                73819138
                73819138
<ACCUMULATED-NII-PRIOR>                          19585                   19585                   19585                   19585
                   19585
<ACCUMULATED-GAINS-PRIOR>                   (23750854)              (23750854)              (23750854)              (23750854)
              (23750854)
<OVERDISTRIB-NII-PRIOR>                              0                       0                       0                       0
                       0
<OVERDIST-NET-GAINS-PRIOR>                   (1614327)               (1614327)               (1614327)               (1614327)
               (1614327)
<GROSS-ADVISORY-FEES>                          1341000                 1341000                 1341000                 1341000
                 1341000
<INTEREST-EXPENSE>                                   0                       0                       0                       0
                       0
<GROSS-EXPENSE>                                2268000                 2268000                 2268000                 2268000
                 2268000
<AVERAGE-NET-ASSETS>                           6936000                  473000                  193000               343600000
               180699000
<PER-SHARE-NAV-BEGIN>                             9.33                    9.32                    9.35                    9.33
                    9.33
<PER-SHARE-NII>                                   0.28                    0.24                    0.24                    0.28
                    0.29
<PER-SHARE-GAIN-APPREC>                           0.14                    0.13                    0.12                    0.13
                    0.13
<PER-SHARE-DIVIDEND>                            (0.28)                  (0.24)                  (0.24)                  (0.28)
                  (0.29)
<PER-SHARE-DISTRIBUTIONS>                            0                       0                       0                       0
                       0
<RETURNS-OF-CAPITAL>                                 0                       0                       0                       0
                       0
<PER-SHARE-NAV-END>                               9.47                    9.45                    9.47                    9.46
                    9.46
<EXPENSE-RATIO>                                   0.93                    1.66                    1.68                    0.93
                    0.68
<AVG-DEBT-OUTSTANDING>                               0                       0                       0                       0
                       0
<AVG-DEBT-PER-SHARE>                                 0                       0                       0                       0
                       0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000855022
<NAME> MUNDER TAX-FREE BOND
<SERIES>
   <NUMBER> 160
   <NAME> MUNDER TAX-FREE BOND
<MULTIPLIER> 1
       
<S>                             <C>                     <C>                     <C>                     <C>
<C>
<PERIOD-TYPE>                   6-MOS                   6-MOS                   6-MOS                   6-MOS
6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998             JUN-30-1998             JUN-30-1998             JUN-30-1998
             JUN-30-1998
<PERIOD-START>                             JUL-01-1997             JUL-01-1997             JUL-01-1997             JUL-01-1997
             JUL-01-1997
<PERIOD-END>                               DEC-31-1997             DEC-31-1997             DEC-31-1997             DEC-31-1997
             DEC-31-1997
<INVESTMENTS-AT-COST>                        192898430               192898430               192898430               192898430
               192898430
<INVESTMENTS-AT-VALUE>                       206646902               206646902               206646902               206646902
               206646902
<RECEIVABLES>                                  3387979                 3387979                 3387979                 3387979
                 3387979
<ASSETS-OTHER>                                   35912                   35912                   35912                   35912
                   35912
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                       0
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               210070793
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<SENIOR-LONG-TERM-DEBT>                              0                       0                       0                       0
                       0
<OTHER-ITEMS-LIABILITIES>                       253111                  253111                  253111                  253111
                  253111
<TOTAL-LIABILITIES>                            4350935                 4350935                 4350935                 4350935
                 4350935
<SENIOR-EQUITY>                                      0                       0                       0                       0
                       0
<PAID-IN-CAPITAL-COMMON>                     189985332               189985332               189985332               189985332
               189985332
<SHARES-COMMON-STOCK>                           391867                   31209                    3783                18287177
                  371357
<SHARES-COMMON-PRIOR>                           236984                   22856                       0                18087340
                  375420
<ACCUMULATED-NII-CURRENT>                      (42669)                 (42669)                 (42669)                 (42669)
                 (42669)
<OVERDISTRIBUTION-NII>                               0                       0                       0                       0
                       0
<ACCUMULATED-NET-GAINS>                        2028722                 2028722                 2028722                 2028722
                 2028722
<OVERDISTRIBUTION-GAINS>                             0                       0                       0                       0
                       0
<ACCUM-APPREC-OR-DEPREC>                      13748473                13748473                13748473                13748473
                13748473
<NET-ASSETS>                                 205719858               205719858               205719858               205719858
               205719858
<DIVIDEND-INCOME>                                    0                       0                       0                       0
                       0
<INTEREST-INCOME>                              6048586                 6048586                 6048586                 6048586
                 6048586
<OTHER-INCOME>                                       0                       0                       0                       0
                       0
<EXPENSES-NET>                                (974868)                (974868)                (974868)                (974868)
                (974868)
<NET-INVESTMENT-INCOME>                        5073718                 5073718                 5073718                 5073718
                 5073718
<REALIZED-GAINS-CURRENT>                       3434649                 3434649                 3434649                 3434649
                 3434649
<APPREC-INCREASE-CURRENT>                      4623916                 4623916                 4623916                 4623916
                 4623916
<NET-CHANGE-FROM-OPS>                         13132283                13132283                13132283                13132283
                13132283
<EQUALIZATION>                                       0                       0                       0                       0
                       0
<DISTRIBUTIONS-OF-INCOME>                      (88070)                  (6278)                   (855)               (4972603)
                (103059)
<DISTRIBUTIONS-OF-GAINS>                       (62615)                  (5007)                   (599)               (2947365)
                 (59887)
<DISTRIBUTIONS-OTHER>                                0                       0                       0                       0
                       0
<NUMBER-OF-SHARES-SOLD>                         261106                    8444                    3782                 1196536
                   30527
<NUMBER-OF-SHARES-REDEEMED>                   (108800)                    (93)                       0                (996774)
                 (34739)
<SHARES-REINVESTED>                               2577                       1                       0                      76
                     150
<NET-CHANGE-IN-ASSETS>                         8801339                 8801339                 8801339                 8801339
                 8801339
<ACCUMULATED-NII-PRIOR>                          54477                   54477                   54477                   54477
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<ACCUMULATED-GAINS-PRIOR>                      1669546                 1669546                 1669546                 1669546
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                       0
<OVERDIST-NET-GAINS-PRIOR>                           0                       0                       0                       0
                       0
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                  515000
<INTEREST-EXPENSE>                                   0                       0                       0                       0
                       0
<GROSS-EXPENSE>                                 975000                  975000                  975000                   97500
                  975000
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                 3883000
<PER-SHARE-NAV-BEGIN>                             10.5                   10.52                   10.64                   10.52
                   10.51
<PER-SHARE-NII>                                   0.26                    0.22                    0.22                    0.27
                    0.28
<PER-SHARE-GAIN-APPREC>                           0.44                    0.43                    0.30                    0.42
                    0.42
<PER-SHARE-DIVIDEND>                            (0.27)                  (0.23)                  (0.23)                  (0.27)
                  (0.28)
<PER-SHARE-DISTRIBUTIONS>                       (0.16)                  (0.16)                  (0.16)                  (0.16)
                  (0.16)
<RETURNS-OF-CAPITAL>                                 0                       0                       0                       0
                       0
<PER-SHARE-NAV-END>                              10.77                   10.78                   10.77                   10.78
                   10.77
<EXPENSE-RATIO>                                   0.95                    1.70                    1.75                    0.95
                    0.70
<AVG-DEBT-OUTSTANDING>                               0                       0                       0                       0
                       0
<AVG-DEBT-PER-SHARE>                                 0                       0                       0                       0
                       0
        

</TABLE>


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