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<PAGE> PAGE 2
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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<PAGE> PAGE 10
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<PAGE> PAGE 11
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<PAGE> PAGE 12
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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 21
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<PAGE> PAGE 22
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<PAGE> PAGE 23
053 A000400 N
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<PAGE> PAGE 24
070 B020400 Y
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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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073 B000700 0.0000
<PAGE> PAGE 41
073 C000700 0.0000
074 A000700 78
074 B000700 0
074 C000700 14159
074 D000700 494456
074 E000700 0
074 F000700 0
074 G000700 0
074 H000700 0
074 I000700 0
074 J000700 0
074 K000700 0
074 L000700 20085
074 M000700 0
074 N000700 528778
074 O000700 34794
074 P000700 431
074 Q000700 0
074 R010700 0
074 R020700 0
074 R030700 0
074 R040700 2369
074 S000700 0
074 T000700 491184
074 U010700 1260
074 U020700 48461
074 V010700 9.87
074 V020700 9.88
074 W000700 0.0000
074 X000700 18083
074 Y000700 72236
075 A000700 0
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076 000700 0.00
028 A010800 0
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<PAGE> PAGE 42
028 E020800 0
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028 G030800 0
028 G040800 0
028 H000800 0
008 A000901 MACKAY-SHIELDS FINANCIAL CORPORATION
008 B000901 A
008 C000901 801-5594
008 D010901 NEW YORK
008 D020901 NY
008 D030901 10019
015 A000901 STATE STREET BANK & TRUST COMPANY
015 B000901 C
015 C010901 BOSTON
015 C020901 MA
015 C030901 02110
015 E010901 X
024 000900 Y
025 A000901 ASSOCIATES FIRST CAPITAL CORP.
025 C000901 E
025 D000901 8159
025 A000902 TRAVELERS GROUP INC.
025 C000902 E
025 D000902 15555
025 A000903 AMERICAN GENERAL FINANCE
025 C000903 D
025 D000903 2089
025 A000904 LEHMAN BROS. HOLDINGS INC.
025 C000904 D
025 D000904 2609
025 A000905 PRUDENTIAL FUNDING
025 C000905 D
025 D000905 23000
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025 D000907 0
025 D000908 0
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028 A020900 0
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<PAGE> PAGE 43
028 C010900 16399
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028 G010900 102204
028 G020900 4115
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028 H000900 4102
029 000900 Y
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030 B000900 5.50
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032 000900 14
033 000900 161
034 000900 Y
035 000900 485
036 A000900 N
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037 000900 N
038 000900 0
040 000900 Y
041 000900 Y
042 A000900 0
042 B000900 0
042 C000900 0
042 D000900 0
042 E000900 0
042 F000900 0
042 G000900 0
042 H000900 100
043 000900 3814
044 000900 0
045 000900 Y
046 000900 N
047 000900 Y
048 000900 0.320
<PAGE> PAGE 44
048 A010900 0
048 A020900 0.000
048 B010900 0
048 B020900 0.000
048 C010900 0
048 C020900 0.000
048 D010900 0
048 D020900 0.000
048 E010900 0
048 E020900 0.000
048 F010900 0
048 F020900 0.000
048 G010900 0
048 G020900 0.000
048 H010900 0
048 H020900 0.000
048 I010900 0
048 I020900 0.000
048 J010900 0
048 J020900 0.000
048 K010900 0
048 K020900 0.000
053 A000900 N
054 A000900 Y
054 B000900 N
054 C000900 N
054 D000900 N
054 E000900 N
054 F000900 N
054 G000900 Y
054 H000900 Y
054 I000900 N
054 J000900 Y
054 K000900 N
054 L000900 N
054 M000900 Y
054 N000900 N
054 O000900 N
055 A000900 N
055 B000900 N
056 000900 Y
057 000900 N
060 A000900 Y
060 B000900 Y
061 000900 500
062 A000900 N
062 B000900 0.0
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062 D000900 0.0
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062 F000900 0.0
<PAGE> PAGE 45
062 G000900 0.0
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062 O000900 0.0
062 P000900 0.0
062 Q000900 0.0
062 R000900 0.0
063 A000900 0
063 B000900 0.0
066 A000900 Y
066 B000900 N
066 C000900 N
066 D000900 N
066 E000900 N
066 F000900 N
066 G000900 Y
067 000900 Y
068 A000900 N
068 B000900 N
069 000900 N
070 A010900 Y
070 A020900 N
070 B010900 Y
070 B020900 N
070 C010900 Y
070 C020900 N
070 D010900 Y
070 D020900 N
070 E010900 Y
070 E020900 N
070 F010900 Y
070 F020900 N
070 G010900 Y
070 G020900 N
070 H010900 Y
070 H020900 N
070 I010900 N
070 I020900 N
070 J010900 Y
070 J020900 Y
070 K010900 Y
070 K020900 N
070 L010900 Y
070 L020900 Y
070 M010900 Y
070 M020900 N
<PAGE> PAGE 46
070 N010900 Y
070 N020900 Y
070 O010900 Y
070 O020900 N
070 P010900 Y
070 P020900 N
070 Q010900 N
070 Q020900 N
070 R010900 N
070 R020900 N
071 A000900 893221
071 B000900 885323
071 C000900 1116102
071 D000900 79
072 A000900 6
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072 C000900 1779
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072 S000900 25
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072AA000900 48442
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072EE000900 0
073 A010900 0.1901
073 A020900 0.1433
073 B000900 0.0000
073 C000900 0.0000
<PAGE> PAGE 47
074 A000900 3
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074 C000900 70460
074 D000900 409689
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074 T000900 1210214
074 U010900 4230
074 U020900 51249
074 V010900 21.81
074 V020900 21.81
074 W000900 0.0000
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074 Y000900 87882
075 A000900 0
075 B000900 1140887
076 000900 0.00
008 A001101 MONITOR CAPITAL ADVISORS, INC
008 B001101 A
008 C001101 801-34412
008 D011101 NEW YORK
008 D021101 NY
008 D031101 10010
015 A001101 BANK OF NEW YORK
015 B001101 C
015 C011101 NEW YORK
015 C021101 NY
015 C031101 10015
015 E011101 X
024 001100 N
028 A011100 14819
028 A021100 0
028 A031100 0
028 A041100 3586
028 B011100 10932
<PAGE> PAGE 48
028 B021100 0
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028 G011100 79043
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028 H001100 26152
029 001100 Y
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034 001100 N
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037 001100 N
038 001100 0
039 001100 N
040 001100 Y
041 001100 Y
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042 B001100 0
042 C001100 0
042 D001100 0
042 E001100 0
042 F001100 0
042 G001100 0
042 H001100 0
043 001100 0
044 001100 0
045 001100 Y
<PAGE> PAGE 49
046 001100 N
047 001100 Y
048 001100 0.100
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048 G021100 0.000
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
053 A001100 N
054 A001100 Y
054 B001100 Y
054 C001100 Y
054 D001100 N
054 E001100 N
054 F001100 N
054 G001100 Y
054 H001100 Y
054 I001100 N
054 J001100 Y
054 K001100 N
054 L001100 Y
054 M001100 Y
054 N001100 N
054 O001100 N
055 A001100 N
055 B001100 N
056 001100 Y
057 001100 Y
060 A001100 Y
060 B001100 Y
061 001100 1000
062 A001100 N
062 B001100 0.0
062 C001100 0.0
<PAGE> PAGE 50
062 D001100 0.0
062 E001100 0.0
062 F001100 0.0
062 G001100 0.0
062 H001100 0.0
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062 J001100 0.0
062 K001100 0.0
062 L001100 0.0
062 M001100 0.0
062 N001100 0.0
062 O001100 0.0
062 P001100 0.0
062 Q001100 0.0
062 R001100 0.0
066 A001100 Y
066 B001100 N
066 C001100 N
066 D001100 Y
066 E001100 N
066 F001100 N
066 G001100 N
067 001100 N
068 A001100 N
068 B001100 N
069 001100 Y
070 A011100 Y
070 A021100 N
070 B011100 Y
070 B021100 N
070 C011100 N
070 C021100 N
070 D011100 Y
070 D021100 N
070 E011100 N
070 E021100 N
070 F011100 Y
070 F021100 Y
070 G011100 Y
070 G021100 N
070 H011100 Y
070 H021100 N
070 I011100 N
070 I021100 N
070 J011100 N
070 J021100 N
070 K011100 Y
070 K021100 N
070 L011100 Y
070 L021100 Y
070 M011100 N
<PAGE> PAGE 51
070 M021100 N
070 N011100 Y
070 N021100 N
070 O011100 Y
070 O021100 N
070 P011100 N
070 P021100 N
070 Q011100 N
070 Q021100 N
070 R011100 N
070 R021100 N
071 A001100 50175
071 B001100 3501
071 C001100 94291
071 D001100 4
072 A001100 6
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072 C001100 2388
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072 S001100 5
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072 U001100 6
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072 Y001100 231
072 Z001100 1660
072AA001100 3529
072BB001100 132
072CC011100 45704
072CC021100 0
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072EE001100 0
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073 A021100 0.0000
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<PAGE> PAGE 52
073 C001100 0.0000
074 A001100 29
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074 F001100 315848
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074 J001100 971
074 K001100 0
074 L001100 2852
074 M001100 43
074 N001100 332443
074 O001100 2059
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074 R011100 400
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074 T001100 329825
074 U011100 11745
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074 W001100 0.0000
074 X001100 19589
074 Y001100 34322
075 A001100 0
075 B001100 272262
076 001100 0.00
008 A001201 MACKAY-SHIELDS FINANCIAL CORPORATION
008 B001201 A
008 C001201 801-5594
008 D011201 LONDON
008 D051201 UNITED KINDGOM
008 D061201 EC2N 2HE
015 A001201 BANK OF NEW YORK
015 B001201 C
015 C011201 NEW YORK
015 C021201 NY
015 C031201 10015
015 E011201 X
024 001200 N
025 D001201 0
025 D001202 0
025 D001203 0
025 D001204 0
<PAGE> PAGE 53
025 D001205 0
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028 A011200 372
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028 A041200 140
028 B011200 90
028 B021200 55
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028 C011200 468
028 C021200 56
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028 C041200 1212
028 D011200 386
028 D021200 55
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028 D041200 806
028 E011200 463
028 E021200 53
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028 F011200 147
028 F021200 53
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028 G011200 1926
028 G021200 272
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028 G041200 2665
028 H001200 862
029 001200 Y
030 A001200 27
030 B001200 4.50
030 C001200 2.00
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031 B001200 0
032 001200 3
033 001200 20
034 001200 Y
035 001200 3
036 A001200 N
036 B001200 0
037 001200 N
038 001200 0
039 001200 N
040 001200 Y
041 001200 Y
042 A001200 0
<PAGE> PAGE 54
042 B001200 0
042 C001200 0
042 D001200 0
042 E001200 0
042 F001200 0
042 G001200 0
042 H001200 0
043 001200 35
044 001200 0
045 001200 Y
046 001200 N
047 001200 Y
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048 H021200 0.000
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048 K011200 0
048 K021200 0.000
053 A001200 Y
053 B001200 Y
053 C001200 N
054 A001200 Y
054 B001200 Y
054 C001200 Y
054 D001200 N
054 E001200 N
054 F001200 N
054 G001200 Y
054 H001200 Y
054 I001200 N
054 J001200 Y
054 K001200 N
054 L001200 Y
054 M001200 Y
<PAGE> PAGE 55
054 N001200 N
054 O001200 N
055 A001200 N
055 B001200 N
056 001200 Y
057 001200 N
060 A001200 Y
060 B001200 Y
061 001200 500
062 A001200 Y
062 B001200 0.0
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062 D001200 0.0
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062 H001200 0.0
062 I001200 0.0
062 J001200 0.0
062 K001200 0.0
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062 M001200 0.0
062 N001200 0.0
062 O001200 100.0
062 P001200 0.0
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062 R001200 0.0
063 A001200 0
063 B001200 23.7
064 A001200 N
066 A001200 N
067 001200 N
068 A001200 N
068 B001200 N
069 001200 N
070 A011200 Y
070 A021200 N
070 B011200 N
070 B021200 N
070 C011200 N
070 C021200 N
070 D011200 N
070 D021200 N
070 E011200 Y
070 E021200 Y
070 F011200 N
070 F021200 N
070 G011200 Y
070 G021200 N
070 H011200 N
070 H021200 N
<PAGE> PAGE 56
070 I011200 N
070 I021200 N
070 J011200 Y
070 J021200 N
070 K011200 N
070 K021200 N
070 L011200 N
070 L021200 N
070 M011200 N
070 M021200 N
070 N011200 N
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 9913
071 B001200 9860
071 C001200 72212
071 D001200 44
072 A001200 6
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072 X001200 153
072 Y001200 6
072 Z001200 563
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<PAGE> PAGE 57
072BB001200 130
072CC011200 22
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072DD021200 132
072EE001200 0
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075 B001200 22816
076 001200 0.00
008 A001301 MACKAY-SHIELDS FINANCIAL CORPORATION
008 B001301 A
008 C001301 801-5594
008 D011301 NEW YORK
008 D021301 NY
008 D031301 11019
015 A001301 BANK OF NEW YORK
015 B001301 C
<PAGE> PAGE 58
015 C011301 NEW YORK
015 C021301 NY
015 C031301 10015
015 E011301 X
024 001300 N
025 D001301 0
025 D001302 0
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<PAGE> PAGE 59
035 001300 2
036 A001300 N
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053 A001300 Y
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053 C001300 N
054 A001300 Y
054 B001300 Y
054 C001300 Y
054 D001300 N
<PAGE> PAGE 60
054 E001300 N
054 F001300 N
054 G001300 Y
054 H001300 Y
054 I001300 N
054 J001300 Y
054 K001300 N
054 L001300 Y
054 M001300 Y
054 N001300 N
054 O001300 N
055 A001300 N
055 B001300 N
056 001300 Y
057 001300 N
060 A001300 Y
060 B001300 Y
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064 A001300 N
066 A001300 N
067 001300 N
068 A001300 N
068 B001300 N
069 001300 N
070 A011300 Y
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070 B011300 N
070 B021300 N
070 C011300 N
070 C021300 N
070 D011300 N
<PAGE> PAGE 61
070 D021300 N
070 E011300 Y
070 E021300 Y
070 F011300 N
070 F021300 N
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070 G021300 N
070 H011300 N
070 H021300 N
070 I011300 N
070 I021300 N
070 J011300 Y
070 J021300 N
070 K011300 N
070 K021300 N
070 L011300 N
070 L021300 N
070 M011300 N
070 M021300 N
070 N011300 N
070 N021300 N
070 O011300 Y
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070 P011300 Y
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070 Q011300 N
070 Q021300 N
070 R011300 N
070 R021300 N
071 A001300 15006
071 B001300 16277
071 C001300 18428
071 D001300 81
072 A001300 6
072 B001300 593
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072 J001300 10
072 K001300 0
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072 M001300 0
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<PAGE> PAGE 62
072 S001300 0
072 T001300 29
072 U001300 0
072 V001300 0
072 W001300 3
072 X001300 137
072 Y001300 15
072 Z001300 471
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072BB001300 73
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072DD021300 103
072EE001300 0
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074 B001300 0
074 C001300 0
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074 E001300 0
074 F001300 0
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074 H001300 0
074 I001300 0
074 J001300 0
074 K001300 0
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074 M001300 1
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074 Q001300 0
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074 R041300 114
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074 U011300 1387
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<PAGE> PAGE 63
076 001300 0.00
008 A001401 MACKAY-SHIELDS FINANCIAL CORPORATION
008 B001401 A
008 C001401 801-5594
008 D011401 NEW YORK
008 D021401 NY
008 D031401 10019
015 A001401 BANK OF NEW YORK
015 B001401 C
015 C011401 NEW YORK
015 C021401 NY
015 C031401 10015
015 E011401 X
024 001400 Y
025 A001401 BANK OF AMERICA
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025 A001402 BANK OF AMERICA
025 C001402 D
025 D001402 1
025 A001403 BANK OF AMERICA
025 C001403 D
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025 A001404 BANK OF AMERICA
025 C001404 D
025 D001404 15
025 A001405 BANK OF AMERICA
025 C001405 D
025 D001405 1
025 A001406 MERRILL LYNCH PIERCE FENNER & SMITH
025 C001406 D
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025 A001407 MERRILL LYNCH PIERCE FENNER & SMITH
025 C001407 D
025 D001407 22
025 A001408 MERRILL LYNCH CORP.
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025 A001409 MERRILL LYNCH PIERCE FENNER & SMITH
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025 A001410 MERRILL LYNCH PIERCE FENNER & SMITH
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025 A001411 MERRILL LYNCH PIERCE FENNER & SMITH
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<PAGE> PAGE 64
025 C001413 D
025 D001413 2
025 A001414 MERRILL LYNCH PIERCE FENNER & SMITH
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025 D001414 1
025 A001415 BANK OF AMERICA
025 C001415 D
025 D001415 14
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025 C001416 D
025 D001416 6
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025 C001417 D
025 D001417 18
025 A001418 MERRILL LYNCH PIERCE FENNER & SMITH
025 C001418 D
025 D001418 24
025 A001419 SMITH BARNEY INC.
025 C001419 D
025 D001419 5
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025 C001420 D
025 D001420 3
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025 C001421 D
025 D001421 4
025 A001422 BANK OF AMERICA
025 C001422 D
025 D001422 1
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025 C001423 D
025 D001423 1
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025 C001425 D
025 D001425 1
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025 C001427 D
025 D001427 16
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025 D001428 110
025 A001429 BANK OF AMERICA
025 C001429 D
025 D001429 1
025 A001430 MERRILL LYNCH PIERCE FENNER & SMITH
<PAGE> PAGE 65
025 C001430 D
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025 A001431 MERRILL LYNCH PIERCE FENNER & SMITH
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034 001400 Y
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036 A001400 N
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037 001400 N
038 001400 0
039 001400 N
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<PAGE> PAGE 66
041 001400 Y
042 A001400 0
042 B001400 0
042 C001400 0
042 D001400 0
042 E001400 0
042 F001400 0
042 G001400 0
042 H001400 100
043 001400 103
044 001400 0
045 001400 Y
046 001400 N
047 001400 Y
048 001400 0.450
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048 B011400 0
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048 H021400 0.000
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048 I021400 0.000
048 J011400 0
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048 K021400 0.000
053 A001400 Y
053 B001400 Y
054 A001400 Y
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054 C001400 N
054 D001400 N
054 E001400 N
054 F001400 N
054 G001400 Y
054 H001400 Y
054 I001400 N
054 J001400 Y
054 K001400 N
054 L001400 N
<PAGE> PAGE 67
054 M001400 Y
054 N001400 N
054 O001400 N
055 A001400 N
055 B001400 N
056 001400 Y
057 001400 N
058 A001400 N
060 A001400 Y
060 B001400 Y
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064 A001400 N
064 B001400 N
066 A001400 N
067 001400 N
068 A001400 N
068 B001400 Y
069 001400 N
070 A011400 Y
070 A021400 N
070 B011400 N
070 B021400 N
070 C011400 Y
070 C021400 N
070 D011400 N
070 D021400 N
070 E011400 Y
070 E021400 N
070 F011400 N
070 F021400 N
070 G011400 Y
<PAGE> PAGE 68
070 G021400 N
070 H011400 N
070 H021400 N
070 I011400 Y
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 Y
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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071 B001400 26222
071 C001400 26270
071 D001400 100
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<PAGE> PAGE 69
072 Y001400 47
072 Z001400 759
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008 A001501 MACKAY-SHIELDS FINANCIAL CORPORATION
008 B001501 A
008 C001501 801-5594
008 D011501 NEW YORK
008 D021501 NY
<PAGE> PAGE 70
008 D031501 10019
015 A001501 BANK OF NEW YORK
015 B001501 C
015 C011501 NEW YORK
015 C021501 NY
015 C031501 10015
015 E011501 X
024 001500 Y
025 A001501 REUTERS HOLDINGS
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025 A001503 BANK OF AMERICA
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025 A001514 SMITH BARNEY INC.
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<PAGE> PAGE 71
025 C001515 D
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025 A001516 BANK OF AMERICA
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025 D001520 7
025 A001521 MERRILL LYNCH PIERCE FENNER & SMITH
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<PAGE> PAGE 72
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<PAGE> PAGE 73
048 H021500 0.000
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057 001500 N
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<PAGE> PAGE 74
066 C001500 N
066 D001500 Y
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066 G001500 N
067 001500 N
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069 001500 N
070 A011500 Y
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<PAGE> PAGE 75
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<PAGE> PAGE 76
074 Q001500 0
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008 A001601 MACKAY-SHIELDS FINANCIAL CORPORATION
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015 A001601 BANK OF NEW YORK
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015 C021601 NY
015 C031601 10015
015 E011601 X
024 001600 Y
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<PAGE> PAGE 77
025 A001608 BANK OF AMERICA
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025 A001624 MERRILL LYNCH PIERCE FENNER & SMITH
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<PAGE> PAGE 78
025 A001625 SMITH BARNEY INC.
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<PAGE> PAGE 79
028 D021600 0
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<PAGE> PAGE 80
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<PAGE> PAGE 81
062 D001600 0.0
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064 A001600 N
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 Y
070 C021600 N
070 D011600 N
070 D021600 N
070 E011600 Y
070 E021600 N
070 F011600 N
070 F021600 N
070 G011600 Y
070 G021600 N
070 H011600 N
070 H021600 N
070 I011600 Y
070 I021600 N
070 J011600 Y
070 J021600 Y
070 K011600 Y
070 K021600 N
070 L011600 Y
070 L021600 Y
070 M011600 Y
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070 N011600 Y
<PAGE> PAGE 82
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070 O011600 Y
070 O021600 N
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070 Q021600 N
070 R011600 N
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<PAGE> PAGE 83
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SIGNATURE JENNIFER B. MCHUGH
TITLE ATTORNEY
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<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 042
<NAME> MAINSTAY HIGH YIELD CORPORATE BOND FUND-CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 3,014,233,062
<INVESTMENTS-AT-VALUE> 3,081,957,305
<RECEIVABLES> 103,854,527
<ASSETS-OTHER> 2,584,594
<OTHER-ITEMS-ASSETS> 312,550
<TOTAL-ASSETS> 3,188,708,976
<PAYABLE-FOR-SECURITIES> 39,012,346
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 27,961,123
<TOTAL-LIABILITIES> 66,973,469
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2,966,222,472
<SHARES-COMMON-STOCK> 349,677,431
<SHARES-COMMON-PRIOR> 295,648,907
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (4,014,468)
<ACCUMULATED-NET-GAINS> 91,749,595
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 67,777,908
<NET-ASSETS> 3,121,735,507
<DIVIDEND-INCOME> 5,596,040
<INTEREST-INCOME> 127,274,758
<OTHER-INCOME> 0
<EXPENSES-NET> (21,560,207)
<NET-INVESTMENT-INCOME> 111,310,591
<REALIZED-GAINS-CURRENT> 79,799,374
<APPREC-INCREASE-CURRENT> (14,837,249)
<NET-CHANGE-FROM-OPS> 176,272,716
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (109,715,399)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 72,715,582
<NUMBER-OF-SHARES-REDEEMED> (26,106,021)
<SHARES-REINVESTED> 7,418,963
<NET-CHANGE-IN-ASSETS> 514,122,258
<ACCUMULATED-NII-PRIOR> 823,169
<ACCUMULATED-GAINS-PRIOR> 11,950,221
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 3,900,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 21,560,000
<AVERAGE-NET-ASSETS> 2,814,400,000
<PER-SHARE-NAV-BEGIN> 8.260
<PER-SHARE-NII> 0.320
<PER-SHARE-GAIN-APPREC> 0.180
<PER-SHARE-DIVIDEND> (0.340)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 8.420
<EXPENSE-RATIO> 1.57
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 051
<NAME> MAINSTAY GOVERNMENT FUND-CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 760,507,438
<INVESTMENTS-AT-VALUE> 763,296,467
<RECEIVABLES> 23,943,794
<ASSETS-OTHER> 3,389
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 787,243,650
<PAYABLE-FOR-SECURITIES> 87,632,388
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4,822,938
<TOTAL-LIABILITIES> 92,455,326
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 838,616,822
<SHARES-COMMON-STOCK> 2,162,322
<SHARES-COMMON-PRIOR> 2,037,511
<ACCUMULATED-NII-CURRENT> 1,854,909
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (148,472,436)
<ACCUM-APPREC-OR-DEPREC> 2,789,029
<NET-ASSETS> 694,788,324
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 27,690,261
<OTHER-INCOME> 0
<EXPENSES-NET> (5,936,380)
<NET-INVESTMENT-INCOME> 21,753,881
<REALIZED-GAINS-CURRENT> (6,478,017)
<APPREC-INCREASE-CURRENT> (253,247)
<NET-CHANGE-FROM-OPS> 15,022,617
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (517,857)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 642,345
<NUMBER-OF-SHARES-REDEEMED> (554,637)
<SHARES-REINVESTED> 37,103
<NET-CHANGE-IN-ASSETS> 15,491,887
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (141,994,419)
<GROSS-ADVISORY-FEES> 1,102,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5,936,000
<AVERAGE-NET-ASSETS> 740,504,000
<PER-SHARE-NAV-BEGIN> 8.060
<PER-SHARE-NII> 0.260
<PER-SHARE-GAIN-APPREC> (0.070)
<PER-SHARE-DIVIDEND> (0.250)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 8.000
<EXPENSE-RATIO> 1.09
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 052
<NAME> MAINSTAY GOVERNMENT FUND-CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 760,507,438
<INVESTMENTS-AT-VALUE> 763,296,467
<RECEIVABLES> 23,943,794
<ASSETS-OTHER> 3,389
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 787,243,650
<PAYABLE-FOR-SECURITIES> 87,632,388
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 4,822,938
<TOTAL-LIABILITIES> 92,455,326
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 838,616,822
<SHARES-COMMON-STOCK> 84,752,739
<SHARES-COMMON-PRIOR> 97,390,018
<ACCUMULATED-NII-CURRENT> 1,854,909
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (148,472,436)
<ACCUM-APPREC-OR-DEPREC> 2,789,029
<NET-ASSETS> 694,788,324
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 27,690,261
<OTHER-INCOME> 0
<EXPENSES-NET> (5,936,380)
<NET-INVESTMENT-INCOME> 21,753,881
<REALIZED-GAINS-CURRENT> (6,478,017)
<APPREC-INCREASE-CURRENT> (253,247)
<NET-CHANGE-FROM-OPS> 15,022,617
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (19,381,115)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,980,928
<NUMBER-OF-SHARES-REDEEMED> (17,153,899)
<SHARES-REINVESTED> 1,535,692
<NET-CHANGE-IN-ASSETS> (105,064,289)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (141,994,419)
<GROSS-ADVISORY-FEES> 1,102,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 5,936,000
<AVERAGE-NET-ASSETS> 740,504,000
<PER-SHARE-NAV-BEGIN> 8.040
<PER-SHARE-NII> 0.240
<PER-SHARE-GAIN-APPREC> (0.070)
<PER-SHARE-DIVIDEND> (0.220)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 7.990
<EXPENSE-RATIO> 1.63
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 061
<NAME> MAINSTAY MONEY MARKET FUND - CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 410,870,975
<INVESTMENTS-AT-VALUE> 410,870,975
<RECEIVABLES> 1,680,793
<ASSETS-OTHER> 328,731
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 412,880,499
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,996,202
<TOTAL-LIABILITIES> 2,996,202
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 409,895,774
<SHARES-COMMON-STOCK> 70,391,861
<SHARES-COMMON-PRIOR> 58,890,270
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (11,477)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 409,884,297
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 11,181,767
<OTHER-INCOME> 0
<EXPENSES-NET> (1,394,164)
<NET-INVESTMENT-INCOME> 9,787,603
<REALIZED-GAINS-CURRENT> 3,024
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 9,790,627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,607,950)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 124,177,809
<NUMBER-OF-SHARES-REDEEMED> (109,119,050)
<SHARES-REINVESTED> 1,442,832
<NET-CHANGE-IN-ASSETS> 24,684,268
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (14,501)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 485,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,906,000
<AVERAGE-NET-ASSETS> 401,634,000
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.024
<PER-SHARE-GAIN-APPREC> 0.000
<PER-SHARE-DIVIDEND> (0.024)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.7
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 062
<NAME> MAINSTAY MONEY MARKET FUND - CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 410,870,975
<INVESTMENTS-AT-VALUE> 410,870,975
<RECEIVABLES> 1,680,793
<ASSETS-OTHER> 328,731
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 412,880,499
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,996,202
<TOTAL-LIABILITIES> 2,996,202
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 409,895,774
<SHARES-COMMON-STOCK> 339,503,916
<SHARES-COMMON-PRIOR> 317,497,716
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (11,477)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 409,884,297
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 11,181,767
<OTHER-INCOME> 0
<EXPENSES-NET> (1,394,154)
<NET-INVESTMENT-INCOME> 9,787,603
<REALIZED-GAINS-CURRENT> 3,024
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 9,790,627
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (8,179,653)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 308,373,833
<NUMBER-OF-SHARES-REDEEMED> (293,953,016)
<SHARES-REINVESTED> 7,585,383
<NET-CHANGE-IN-ASSETS> 23,617,174
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (14,501)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 485,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,906,000
<AVERAGE-NET-ASSETS> 401,634,000
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.024
<PER-SHARE-GAIN-APPREC> 0.000
<PER-SHARE-DIVIDEND> (0.024)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.7
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 071
<NAME> MAINSTAY TAX FREE BOND FUND - CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 503,194,487
<INVESTMENTS-AT-VALUE> 508,615,162
<RECEIVABLES> 20,084,555
<ASSETS-OTHER> 78,356
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 528,778,073
<PAYABLE-FOR-SECURITIES> 34,793,890
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,800,004
<TOTAL-LIABILITIES> 37,593,894
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 500,427,059
<SHARES-COMMON-STOCK> 1,260,446
<SHARES-COMMON-PRIOR> 1,676,249
<ACCUMULATED-NII-CURRENT> 603,867
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (15,267,422)
<ACCUM-APPREC-OR-DEPREC> 5,420,675
<NET-ASSETS> 491,184,179
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 15,665,434
<OTHER-INCOME> 0
<EXPENSES-NET> (2,954,262)
<NET-INVESTMENT-INCOME> 12,711,172
<REALIZED-GAINS-CURRENT> 525,033
<APPREC-INCREASE-CURRENT> 678,457
<NET-CHANGE-FROM-OPS> 13,914,662
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (329,693)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 224,080
<NUMBER-OF-SHARES-REDEEMED> (660,891)
<SHARES-REINVESTED> 21,008
<NET-CHANGE-IN-ASSETS> 9,469,610
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (245)
<OVERDIST-NET-GAINS-PRIOR> (15,792,455)
<GROSS-ADVISORY-FEES> 737,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,954,000
<AVERAGE-NET-ASSETS> 495,502,000
<PER-SHARE-NAV-BEGIN> 9.840
<PER-SHARE-NII> 0.260
<PER-SHARE-GAIN-APPREC> 0.020
<PER-SHARE-DIVIDEND> (0.250)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 9.870
<EXPENSE-RATIO> 1.010
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 072
<NAME> MAINSTAY TAX FREE BOND FUND - CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 503,194,487
<INVESTMENTS-AT-VALUE> 508,615,162
<RECEIVABLES> 20,084,555
<ASSETS-OTHER> 78,356
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 528,778,073
<PAYABLE-FOR-SECURITIES> 34,793,890
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,800,004
<TOTAL-LIABILITIES> 37,593,894
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 500,427,059
<SHARES-COMMON-STOCK> 48,460,846
<SHARES-COMMON-PRIOR> 50,420,942
<ACCUMULATED-NII-CURRENT> 603,867
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (15,267,422)
<ACCUM-APPREC-OR-DEPREC> 5,420,675
<NET-ASSETS> 491,184,179
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 15,665,434
<OTHER-INCOME> 0
<EXPENSES-NET> (2,954,262)
<NET-INVESTMENT-INCOME> 12,711,172
<REALIZED-GAINS-CURRENT> 525,033
<APPREC-INCREASE-CURRENT> 678,457
<NET-CHANGE-FROM-OPS> 13,914,662
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (11,777,367)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,782,251
<NUMBER-OF-SHARES-REDEEMED> (4,373,904)
<SHARES-REINVESTED> 631,557
<NET-CHANGE-IN-ASSETS> (17,087,671)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> (245)
<OVERDIST-NET-GAINS-PRIOR> (15,792,455)
<GROSS-ADVISORY-FEES> 737,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,954,000
<AVERAGE-NET-ASSETS> 495,502,000
<PER-SHARE-NAV-BEGIN> 9.840
<PER-SHARE-NII> 0.250
<PER-SHARE-GAIN-APPREC> 0.030
<PER-SHARE-DIVIDEND> (0.240)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 9.880
<EXPENSE-RATIO> 1.210
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 091
<NAME> MAINSTAY TOTAL RETURN FUND - CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 901,333,831
<INVESTMENTS-AT-VALUE> 1,242,028,575
<RECEIVABLES> 85,545,722
<ASSETS-OTHER> 2,653
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1,327,576,950
<PAYABLE-FOR-SECURITIES> 111,188,053
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 6,174,828
<TOTAL-LIABILITIES> 117,362,881
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 831,480,479
<SHARES-COMMON-STOCK> 4,229,846
<SHARES-COMMON-PRIOR> 3,433,467
<ACCUMULATED-NII-CURRENT> 142,614
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 37,896,232
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 340,694,744
<NET-ASSETS> 1,210,214,069
<DIVIDEND-INCOME> 1,779,021
<INTEREST-INCOME> 15,380,168
<OTHER-INCOME> 0
<EXPENSES-NET> (8,900,575)
<NET-INVESTMENT-INCOME> 8,258,614
<REALIZED-GAINS-CURRENT> 33,930,403
<APPREC-INCREASE-CURRENT> 61,381,356
<NET-CHANGE-FROM-OPS> 103,570,373
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (766,916)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,188,681
<NUMBER-OF-SHARES-REDEEMED> (411,643)
<SHARES-REINVESTED> 19,391
<NET-CHANGE-IN-ASSETS> 118,806,326
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 3,965,829
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,747,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8,901,000
<AVERAGE-NET-ASSETS> 1,140,887,000
<PER-SHARE-NAV-BEGIN> 20.090
<PER-SHARE-NII> 0.190
<PER-SHARE-GAIN-APPREC> 1.720
<PER-SHARE-DIVIDEND> (0.190)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 21.810
<EXPENSE-RATIO> 1.150
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 092
<NAME> MAINSTAY TOTAL RETURN FUND - CLASS B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
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<NAME> THE MAINSTAY FUNDS
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<NAME> MAINSTAY EQUITY INDEX FUND - CLASS A
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<NAME> THE MAINSTAY FUNDS
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<NUMBER> 121
<NAME> MAINSTAY CALIFORNIA TAX FREE FUND - CLASS A
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<NAME> THE MAINSTAY FUNDS
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<NUMBER> 122
<NAME> MAINSTAY CALIFORNIA TAX FREE FUND - CLASS B
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<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
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<NUMBER> 131
<NAME> MAINSTAY NEW YORK TAX FREE FUND - CLASS A
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<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 132
<NAME> MAINSTAY NEW YORK TAX FREE FUND - CLASS B
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<TABLE> <S> <C>
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<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 141
<NAME> MAINSTAY INTERNATIONAL BOND - CLASS A
<MULTIPLIER> 1
<S> <C>
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<TABLE> <S> <C>
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<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 142
<NAME> MAINSTAY INTERNATIONAL BOND - CLASS B
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<S> <C>
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<FISCAL-YEAR-END> DEC-31-1997
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<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000787441
<NAME> THE MAINSTAY FUNDS
<SERIES>
<NUMBER> 151
<NAME> INTERNATIONAL EQUITY FUND - CLASS A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1997
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<NAME> THE MAINSTAY FUNDS
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<NAME> INTERNATIONAL EQUITY FUND - CLASS B
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