<PAGE> PAGE 1
000 B000000 12/31/97
000 C000000 0001032078
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 MANAGED INCOME SECURITIES PLUS FUND, INC.
001 B000000 811-08045
001 C000000 2122729027
002 A000000 245 PARK AVENUE
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10167
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A000001 BEAR STEARNS ASSET MANAGEMENT INC.
008 B000001 A
008 C000001 801-29862
008 D010001 NEW YORK
008 D020001 NY
008 D030001 10167
010 A000001 BEAR STEARNS FUNDS MANAGEMENT INC.
010 B000001 801-29862
010 C010001 NEW YORK
010 C020001 NY
010 C030001 10167
010 A000002 PFPC INC.
010 B000002 85-1196
010 C010002 WILMINGTON
010 C020002 DE
010 C030002 19809
011 A000001 BEAR, STEARNS & CO. INC.
011 B000001 8-35008
011 C010001 NEW YORK
<PAGE> PAGE 2
011 C020001 NY
011 C030001 10167
012 A000001 PFPC INC.
012 B000001 85-1196
012 C010001 WILMINGTON
012 C020001 DE
012 C030001 19809
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 NEW YORK
013 B020001 NY
013 B030001 10281
013 B040001 1434
014 A000001 BEAR, STEARNS & CO. INC.
014 B000001 8-35008
015 A000001 CUSTODIAL TRUST COMPANY
015 B000001 C
015 C010001 PRINCETON
015 C020001 NJ
015 C030001 08540
015 E030001 X
018 000000 Y
019 A000000 N
019 B000000 0
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 PAINEWEBBER INC.
022 C000001 571882
022 D000001 43473
022 A000002 CUSTODIAL TRUST CO.
022 C000002 275854
022 D000002 155614
022 A000003 FORD MOTOR CREDIT
022 C000003 253852
022 D000003 0
022 A000004 BARCLAYS DE ZOETE WEDD
022 C000004 251651
022 D000004 0
022 A000005 IBM CREDIT CORP.
022 C000005 234832
022 D000005 0
022 A000006 MERRILL LYNCH & CO. INC.
022 B000006 13-5674085
<PAGE> PAGE 3
022 C000006 227823
022 D000006 0
022 A000007 GENERAL ELECTRIC CAPITAL CORP.
022 C000007 242824
022 D000007 0
022 A000008 PRUDENTIAL SECURITIES INC.
022 C000008 208000
022 D000008 0
022 A000009 AMERICAN EXPRESS CREDIT CORP.
022 C000009 204000
022 D000009 0
022 A000010 ASSOCIATES CORP. N.A.
022 C000010 187000
022 D000010 0
023 C000000 3002896
023 D000000 206425
024 000000 Y
025 A000001 GREENWICH FUNDING CORP.
025 C000001 D
025 D000001 25127
025 A000002 DELAWARE FUNDING CORP.
025 C000002 D
025 D000002 24980
025 A000003 FORD MOTOR CREDIT CORP.
025 C000003 D
025 D000003 24968
025 A000004 STANDARD CREDIT CARD TRUST
025 C000004 D
025 D000004 24952
025 A000005 TWIN TOWERS INC.
025 C000005 D
025 D000005 24952
025 A000006 IBM CORP.
025 C000006 D
025 D000006 24948
025 A000007 GENERAL ELECTRIC CAPITAL CORP.
025 C000007 D
025 D000007 24940
025 A000008 MERRILL LYNCH & CO. INC
025 C000008 D
025 D000008 24940
026 A000000 N
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 N
<PAGE> PAGE 4
028 A010000 0
028 A020000 0
028 A030000 0
028 A040000 0
028 B010000 0
028 B020000 0
028 B030000 0
028 B040000 0
028 C010000 0
028 C020000 0
028 C030000 0
028 C040000 0
028 D010000 0
028 D020000 0
028 D030000 0
028 D040000 0
028 E010000 0
028 E020000 0
028 E030000 0
028 E040000 0
028 F010000 0
028 F020000 0
028 F030000 0
028 F040000 0
028 G010000 0
028 G020000 0
028 G030000 0
028 G040000 0
028 H000000 0
030 A000000 0
030 B000000 0.00
030 C000000 0.00
031 A000000 0
031 B000000 0
032 000000 0
033 000000 0
035 000000 0
036 B000000 0
038 000000 0
042 A000000 0
042 B000000 0
042 C000000 0
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 0
044 000000 0
045 000000 Y
046 000000 N
<PAGE> PAGE 5
047 000000 Y
048 000000 0.075
048 A010000 0
048 A020000 0.000
048 B010000 0
048 B020000 0.000
048 C010000 0
048 C020000 0.000
048 D010000 0
048 D020000 0.000
048 E010000 0
048 E020000 0.000
048 F010000 0
048 F020000 0.000
048 G010000 0
048 G020000 0.000
048 H010000 0
048 H020000 0.000
048 I010000 0
048 I020000 0.000
048 J010000 0
048 J020000 0.000
048 K010000 0
048 K020000 0.000
049 000000 N
050 000000 N
051 000000 N
052 000000 N
053 A000000 N
054 A000000 Y
054 B000000 Y
054 C000000 N
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
054 H000000 N
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 N
054 O000000 N
055 A000000 N
055 B000000 N
056 000000 Y
057 000000 N
058 A000000 N
058 B000000 N
058 C000000 N
<PAGE> PAGE 6
058 D000000 N
058 E000000 N
059 000000 Y
060 A000000 N
060 B000000 N
061 000000 0
062 A000000 Y
062 B000000 0.0
062 C000000 17.0
062 D000000 0.0
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 41.8
062 J000000 0.0
062 K000000 0.0
062 L000000 0.0
062 M000000 40.8
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.7
062 R000000 0.2
063 A000000 0
063 B000000 2.8
064 A000000 Y
064 B000000 N
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 N
070 B010000 Y
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 Y
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 Y
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 Y
070 I020000 N
<PAGE> PAGE 7
070 J010000 Y
070 J020000 N
070 K010000 Y
070 K020000 Y
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 Y
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 Y
070 R020000 Y
071 A000000 263971
071 B000000 50728
071 C000000 196679
071 D000000 26
072 A000000 12
072 B000000 27357
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 351
072 G000000 0
072 H000000 0
072 I000000 28
072 J000000 51
072 K000000 0
072 L000000 0
072 M000000 21
072 N000000 0
072 O000000 0
072 P000000 0
072 Q000000 72
072 R000000 25
072 S000000 30
072 T000000 0
072 U000000 6
072 V000000 0
072 W000000 91
072 X000000 675
072 Y000000 0
072 Z000000 26682
072AA000000 48
072BB000000 0
072CC010000 5746
<PAGE> PAGE 8
072CC020000 0
072DD010000 26697
072DD020000 0
072EE000000 48
073 A010000 836.2700
073 A020000 0.0000
073 B000000 1.4900
073 C000000 0.0000
074 A000000 0
074 B000000 0
074 C000000 309440
074 D000000 218085
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 815
074 J000000 1106
074 K000000 0
074 L000000 5480
074 M000000 30
074 N000000 534956
074 O000000 8386
074 P000000 33
074 Q000000 50
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 168
074 S000000 200000
074 T000000 326319
074 U010000 32037
074 U020000 0
074 V010000 10185.75
074 V020000 0.00
074 W000000 0.0000
074 X000000 4
074 Y000000 0
075 A000000 0
075 B000000 517283
076 000000 0.00
077 A000000 Y
077 B000000 Y
077 Q010000 Y
078 000000 N
080 A000000 GULF INSURANCE CO.
080 C000000 3750
081 A000000 Y
081 B000000 11
082 A000000 N
082 B000000 0
<PAGE> PAGE 9
083 A000000 N
083 B000000 0
084 A000000 N
084 B000000 0
085 A000000 Y
085 B000000 N
086 A010000 32
086 A020000 320589
086 B010000 0
086 B020000 0
086 C010000 2000
086 C020000 200000
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 50
086 F010000 0
086 F020000 0
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 Y
SIGNATURE VINCENT L. PEREIRA
TITLE VICE PRESIDENT
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001032078
<NAME> MANAGED INCOME SECURITIES PLUS FUND, INC.
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> DEC-31-1997
<PERIOD-START> FEB-05-1997
<PERIOD-END> DEC-31-1997
<INVESTMENTS-AT-COST> 522577476
<INVESTMENTS-AT-VALUE> 528339788
<RECEIVABLES> 6585609
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 30330
<TOTAL-ASSETS> 534955727
<PAYABLE-FOR-SECURITIES> 8385770
<SENIOR-LONG-TERM-DEBT> 50000
<OTHER-ITEMS-LIABILITIES> 201002
<TOTAL-LIABILITIES> 8636772
<SENIOR-EQUITY> 200000000
<PAID-IN-CAPITAL-COMMON> 320573386
<SHARES-COMMON-STOCK> 32037
<SHARES-COMMON-PRIOR> 32037
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5745569
<NET-ASSETS> 526318955
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 27356683
<OTHER-INCOME> 0
<EXPENSES-NET> 674611
<NET-INVESTMENT-INCOME> 26682072
<REALIZED-GAINS-CURRENT> 47834
<APPREC-INCREASE-CURRENT> 5745569
<NET-CHANGE-FROM-OPS> 32475475
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 26697686
<DISTRIBUTIONS-OF-GAINS> 47834
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 32036
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 526318955
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 350762
<INTEREST-EXPENSE> 3724
<GROSS-EXPENSE> 674611
<AVERAGE-NET-ASSETS> 517283470
<PER-SHARE-NAV-BEGIN> 10000
<PER-SHARE-NII> 836.13
<PER-SHARE-GAIN-APPREC> 187.38
<PER-SHARE-DIVIDEND> 836.27
<PER-SHARE-DISTRIBUTIONS> 1.49
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10185.75
<EXPENSE-RATIO> 0.14
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
INDEPENDENT AUDITORS' REPORT
To the Board of Directors and Shareholders of
Managed Income Securities Plus Fund, Inc.:
In planning and performing our audit of the financial statements of Managed
Income Securities Plus Fund, Inc. (the "Fund") for the year ended December
31, 1997 (on which we have issued our report dated February 18, 1998), we
considered its internal control, including control activities for
safeguarding securities, in order to determine our auditing procedures for
the purpose of expressing our opinion on the financial statements and to
comply with the requirements of Form N-SAR, and not to provide assurance
on the Fund's internal control.
The management of the Fund is responsible for establishing and maintaining
internal control. In fulfilling this responsibility, estimates and
judgments by management are required to assess the expected benefits and
related costs of controls. Generally, controls that are relevant to an
audit pertain to the entity's objective of preparing financial statements
for external purposes that are fairly presented in conformity with
generally accepted accounting principles. Those controls include the
safeguarding of assets against unauthorized acquisition, use, or disposition.
Because of inherent limitations in any internal control, errors or fraud may
occur and not be detected. Also, projection of any evaluation of internal
control to future periods is subject to the risk that it may become
inadequate because of changes in conditions or that the effectiveness of the
design and operation may deteriorate.
Our consideration of the Fund's internal control would not necessarily
disclose all matters in internal control that might be material weaknesses
under standards established by the American Institute of Certified Public
Accountants. A material weakness is a condition in which the design or
operation of one or more of the internal control components does not reduce
to a relatively low level the risk that errors or fraud in amounts that
would be material in relation to the financial statements being audited
may occur and not be detected within a timely period by employees in the
normal course of performing their assigned functions. However, we noted
no matters involving the Fund's internal control and its operation,
including controls for safeguarding securities, that we consider to be
material weaknesses as defined above as of December 31, 1997.
The report is intended solely for the information and use of management,
the Board of Directors of Managed Income Securities Plus Fund, Inc., and
the Securities and Exchange Commission.
DELOITTE & TOUCHE LLP
Two World Financial Center
New York, NY 10281
February 18, 1998