STATE STREET RESEARCH MASTER INVESTMENT TRUST
NSAR-A, 2000-02-28
Previous: ROCHESTER FUND MUNICIPALS, NSAR-B, 2000-02-28
Next: CAPITAL CASH MANAGEMENT TRUST, N-30D, 2000-02-28



<PAGE>      PAGE  1
000 A000000 12/31/99
000 C000000 0000093755
000 D000000 N
000 E000000 F
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 STATE STREET RESEARCH MASTER INVESTMENT TRUST
001 B000000 811-84
001 C000000 6173571200
002 A000000 ONE FINANCIAL CENTER
002 B000000 BOSTON
002 C000000 MA
002 D010000 02111
002 D020000 2690
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  1
007 C010100  1
007 C020100 STATE STREET RESEARCH INVESTMENT TRUST
007 C030100 N
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 A00AA01 STATE STREET RESEARCH & MANAGEMENT COMPANY
008 B00AA01 A
008 C00AA01 801-18538
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02111
008 D04AA01 2690
011 A00AA01 STATE STREET RESEARCH INVESTMENT SERVICES INC
011 B00AA01 8-2646868
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02111
011 C04AA01 2690
012 A00AA01 STATE STREET RESEARCH SERVICE CENTER
012 B00AA01 85-26468
012 C01AA01 BOSTON
<PAGE>      PAGE  2
012 C02AA01 MA
012 C03AA01 02111
012 C04AA01 2690
013 A00AA01 PRICEWATERHOUSECOOPERS LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
014 A00AA01 STATE STREET RESEARCH INVESTMENT SERVICES INC
014 B00AA01 8-35442
014 A00AA02 METROPOLITAN LIFE INSURANCE COMPANY
014 B00AA02 8-14901
014 A00AA03 DELETE
014 A00AA04 DELETE
014 A00AA05 DELETE
015 A00AA01 STATE STREET BANK AND TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02110
015 E01AA01 X
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   23
019 C00AA00 STATESTRES
020 A000001 MORGAN STANLEY DEAN WITTER & CO.
020 B000001 13-2655998
020 C000001    395
020 A000002 SALOMON SMITH BARNEY INC.
020 B000002 11-2418191
020 C000002    363
020 A000003 PRUDENTIAL SECURITIES INC.
020 B000003 22-2347336
020 C000003    290
020 A000004 GOLDMAN SACHS & CO.
020 B000004 13-5108800
020 C000004    279
020 A000005 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
020 B000005 13-5674085
020 C000005    208
020 A000006 DONALDSON, LUFKIN & JENRETTE
020 B000006 13-2741729
020 C000006    202
020 A000007 JP MORGAN SECURITIES
020 B000007 13-3224016
020 C000007    195
020 A000008 SANFORD C. BERNSTEIN & CO., INC.
020 B000008 13-2625874
020 C000008    190
020 A000009 DB CLEARING SERVICES
020 C000009    169
020 A000010 CS FIRST BOSTON CORP.
<PAGE>      PAGE  3
020 B000010 13-5659485
020 C000010    162
021  000000     4577
022 A000001 GOLDMAN SACHS & CO.
022 B000001 13-5108800
022 C000001     28042
022 D000001         0
022 A000002 MERRILL LYNCH PIERCE, FENNER & SMITH INC.
022 B000002 13-5674085
022 C000002     21595
022 D000002         0
022 A000003 LEHMAN BROTHERS INC.
022 B000003 13-2518466
022 C000003     13800
022 D000003         0
022 A000004 PAINE WEBBER INC.
022 B000004 13-2638166
022 C000004     11200
022 D000004       304
022 A000005 BANC AMERICA SECURITY LLC
022 B000005 56-2058405
022 C000005     10622
022 D000005         0
022 A000006 JP MORGAN SECURITIES
022 B000006 13-3224016
022 C000006     10186
022 D000006         0
022 A000007 DONALDSON LUFKIN & JENRETTE SECURITIES CO.
022 B000007 13-2741729
022 C000007      6729
022 D000007         0
022 A000008 HENRY COOK LUMSDEN, LTD
022 C000008      5896
022 D000008         0
022 A000009 MORGAN STANLEY & CO., INC.
022 B000009 13-2655998
022 C000009      3207
022 D000009         0
022 A000010 CS FIRST BOSTON CORP.
022 B000010 13-5659485
022 C000010      2982
022 D000010         0
023 C000000     115478
023 D000000        304
024  00AA00 Y
025 A00AA01 MORGAN STANLEY DEAN WITTER & CO.
025 B00AA01 13-2655998
025 C00AA01 E
025 D00AA01   36758
025 A00AA02 AMERICAN EXPRESS LEHMAN BROTHERS, INC.
025 B00AA02 13-2518466
<PAGE>      PAGE  4
025 C00AA02 E
025 D00AA02   34829
025 D00AA03       0
025 D00AA04       0
025 D00AA05       0
025 D00AA06       0
025 D00AA07       0
025 D00AA08       0
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 Y
028 A01AA00     61232
028 A02AA00         0
028 A03AA00         0
028 A04AA00     38519
028 B01AA00     82249
028 B02AA00         0
028 B03AA00         0
028 B04AA00     54067
028 C01AA00     97562
028 C02AA00         0
028 C03AA00         0
028 C04AA00     83082
028 D01AA00     88298
028 D02AA00         0
028 D03AA00         0
028 D04AA00     74317
028 E01AA00     98759
028 E02AA00         0
028 E03AA00         0
028 E04AA00     91049
028 F01AA00     44670
028 F02AA00    118378
028 F03AA00         0
028 F04AA00     47535
028 G01AA00    472770
028 G02AA00    118378
028 G03AA00         0
028 G04AA00    388569
028 H00AA00    210641
029  00AA00 Y
030 A00AA00   6934
030 B00AA00  5.75
030 C00AA00  0.00
<PAGE>      PAGE  5
031 A00AA00   1045
031 B00AA00      0
032  00AA00   3308
033  00AA00   2581
034  00AA00 Y
035  00AA00   2062
036 A00AA00 N
036 B00AA00      0
037  00AA00 N
038  00AA00      0
039  00AA00 N
040  00AA00 Y
041  00AA00 Y
042 A00AA00   1
042 B00AA00   0
042 C00AA00   0
042 D00AA00  75
042 E00AA00   2
042 F00AA00   0
042 G00AA00  22
042 H00AA00   0
043  00AA00  12495
044  00AA00   3341
045  00AA00 Y
046  00AA00 N
047  00AA00 Y
048  00AA00  0.000
048 A01AA00   500000
048 A02AA00 0.550
048 B01AA00   500000
048 B02AA00 0.500
048 C01AA00        0
048 C02AA00 0.000
048 D01AA00        0
048 D02AA00 0.000
048 E01AA00        0
048 E02AA00 0.000
048 F01AA00        0
048 F02AA00 0.000
048 G01AA00        0
048 G02AA00 0.000
048 H01AA00        0
048 H02AA00 0.000
048 I01AA00        0
048 I02AA00 0.000
048 J01AA00        0
048 J02AA00 0.000
048 K01AA00        0
048 K02AA00 0.450
049  00AA00 N
050  00AA00 N
<PAGE>      PAGE  6
051  00AA00 N
052  00AA00 N
053 A00AA00 N
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 N
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 Y
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 N
055 A00AA00 N
055 B00AA00 N
056  00AA00 Y
057  00AA00 Y
058 A00AA00 N
059  00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061  00AA00     2500
062 A00AA00 N
062 B00AA00   0.0
062 C00AA00   0.0
062 D00AA00   0.0
062 E00AA00   0.0
062 F00AA00   0.0
062 G00AA00   0.0
062 H00AA00   0.0
062 I00AA00   0.0
062 J00AA00   0.0
062 K00AA00   0.0
062 L00AA00   0.0
062 M00AA00   0.0
062 N00AA00   0.0
062 O00AA00   0.0
062 P00AA00   0.0
062 Q00AA00   0.0
062 R00AA00   0.0
066 A00AA00 Y
066 B00AA00 N
066 C00AA00 N
066 D00AA00 N
066 E00AA00 Y
066 F00AA00 N
<PAGE>      PAGE  7
066 G00AA00 N
067  00AA00 N
068 A00AA00 N
068 B00AA00 N
069  00AA00 N
070 A01AA00 Y
070 A02AA00 Y
070 B01AA00 Y
070 B02AA00 N
070 C01AA00 Y
070 C02AA00 N
070 D01AA00 Y
070 D02AA00 N
070 E01AA00 Y
070 E02AA00 N
070 F01AA00 Y
070 F02AA00 N
070 G01AA00 Y
070 G02AA00 N
070 H01AA00 Y
070 H02AA00 N
070 I01AA00 N
070 I02AA00 N
070 J01AA00 Y
070 J02AA00 N
070 K01AA00 Y
070 K02AA00 N
070 L01AA00 Y
070 L02AA00 N
070 M01AA00 Y
070 M02AA00 N
070 N01AA00 Y
070 N02AA00 Y
070 O01AA00 Y
070 O02AA00 N
070 P01AA00 N
070 P02AA00 N
070 Q01AA00 N
070 Q02AA00 N
070 R01AA00 N
070 R02AA00 N
071 A00AA00   2303660
071 B00AA00   2067851
071 C00AA00   2894077
071 D00AA00   71
072 A00AA00 12
072 B00AA00     4494
072 C00AA00    27168
072 D00AA00        0
072 E00AA00        0
072 F00AA00    14152
<PAGE>      PAGE  8
072 G00AA00        0
072 H00AA00        0
072 I00AA00     4750
072 J00AA00      459
072 K00AA00        0
072 L00AA00      304
072 M00AA00       21
072 N00AA00      297
072 O00AA00        0
072 P00AA00        0
072 Q00AA00        0
072 R00AA00       34
072 S00AA00        4
072 T00AA00    12495
072 U00AA00        0
072 V00AA00        0
072 W00AA00       79
072 X00AA00    32595
072 Y00AA00        0
072 Z00AA00     -933
072AA00AA00   236272
072BB00AA00        0
072CC01AA00   310803
072CC02AA00        0
072DD01AA00      412
072DD02AA00        0
072EE00AA00   169387
073 A01AA00   0.0000
073 A02AA00   0.0000
073 B00AA00   0.7300
073 C00AA00   0.0200
074 A00AA00        5
074 B00AA00      984
074 C00AA00   126427
074 D00AA00        0
074 E00AA00        0
074 F00AA00  3326127
074 G00AA00        0
074 H00AA00        0
074 I00AA00    84730
074 J00AA00        0
074 K00AA00        0
074 L00AA00    14078
074 M00AA00       18
074 N00AA00  3552369
074 O00AA00    38088
074 P00AA00     5487
074 Q00AA00        0
074 R01AA00        0
074 R02AA00        0
074 R03AA00        0
<PAGE>      PAGE  9
074 R04AA00    88821
074 S00AA00        0
074 T00AA00  3419973
074 U01AA00   245181
074 U02AA00        0
074 V01AA00    14.10
074 V02AA00    13.79
074 W00AA00   0.0000
074 X00AA00   151639
074 Y00AA00        0
075 A00AA00        0
075 B00AA00  2976957
076  00AA00     0.00
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
078  000000 N
080 A00AA00 FEDERAL INSURANCE COMPANY
080 C00AA00    25000
081 A00AA00 Y
081 B00AA00  32
082 A00AA00 N
082 B00AA00        0
083 A00AA00 N
083 B00AA00        0
084 A00AA00 N
084 B00AA00        0
085 A00AA00 Y
085 B00AA00 Y
086 A010000      0
086 A020000      0
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
<PAGE>      PAGE  10
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
086 F010000      0
086 F020000      0
SIGNATURE   DOUGLAS A. ROMICH
TITLE       ASSISTANT TREASURER


WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000093755
<NAME> STATE STREET RESEARCH MASTER INVESTMENT TRUST
<SERIES>
   <NUMBER> 011
   <NAME> STATE STREET RESEARCH INVESTMENT TRUST CLASS A

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<INVESTMENTS-AT-COST>                    2,293,328,906
<INVESTMENTS-AT-VALUE>                   3,538,268,021
<RECEIVABLES>                               14,077,353
<ASSETS-OTHER>                                  23,518
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           3,552,368,892
<PAYABLE-FOR-SECURITIES>                    38,087,893
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   94,308,444
<TOTAL-LIABILITIES>                        132,396,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 2,086,577,358
<SHARES-COMMON-STOCK>                       57,280,483
<SHARES-COMMON-PRIOR>                       46,500,669
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     88,456,082
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,244,939,115
<NET-ASSETS>                             3,419,972,555
<DIVIDEND-INCOME>                           27,167,741
<INTEREST-INCOME>                            4,494,074
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              32,594,845
<NET-INVESTMENT-INCOME>                      (933,030)
<REALIZED-GAINS-CURRENT>                   236,272,357
<APPREC-INCREASE-CURRENT>                  310,802,825
<NET-CHANGE-FROM-OPS>                      546,142,152
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (109,725)
<DISTRIBUTIONS-OF-GAINS>                  (39,082,234)
<DISTRIBUTIONS-OTHER>                        (515,054)
<NUMBER-OF-SHARES-SOLD>                     30,350,365
<NUMBER-OF-SHARES-REDEEMED>               (22,501,889)
<SHARES-REINVESTED>                          2,931,338
<NET-CHANGE-IN-ASSETS>                     815,452,619
<ACCUMULATED-NII-PRIOR>                        411,566
<ACCUMULATED-GAINS-PRIOR>                   24,578,091
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       14,152,289
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             32,762,820
<AVERAGE-NET-ASSETS>                     2,976,957,430
<PER-SHARE-NAV-BEGIN>                            12.36
<PER-SHARE-NII>                                   0.02
<PER-SHARE-GAIN-APPREC>                           2.37
<PER-SHARE-DIVIDEND>                            (0.00)
<PER-SHARE-DISTRIBUTIONS>                       (0.73)
<RETURNS-OF-CAPITAL>                            (0.01)
<PER-SHARE-NAV-END>                              14.01
<EXPENSE-RATIO>                                   0.93
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0


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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000093755
<NAME> STATE STREET RESEARCH MASTER INVESTMENT TRUST
<SERIES>
   <NUMBER> 012
   <NAME> STATE STREET RESEARCH INVESTMENT TRUST CLASS B

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<INVESTMENTS-AT-COST>                    2,293,328,906
<INVESTMENTS-AT-VALUE>                   3,538,268,021
<RECEIVABLES>                               14,077,353
<ASSETS-OTHER>                                  23,518
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           3,552,368,892
<PAYABLE-FOR-SECURITIES>                    38,087,893
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   94,308,444
<TOTAL-LIABILITIES>                        132,396,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 2,086,577,358
<SHARES-COMMON-STOCK>                       77,581,610
SHARES-COMMON-PRIOR>                        77,087,053
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     88,456,082
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,244,939,115
<NET-ASSETS>                             3,419,972,555
<DIVIDEND-INCOME>                           27,167,741
<INTEREST-INCOME>                            4,494,074
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              32,594,845
<NET-INVESTMENT-INCOME>                      (933,030)
<REALIZED-GAINS-CURRENT>                   236,272,357
<APPREC-INCREASE-CURRENT>                  310,802,825
<NET-CHANGE-FROM-OPS>                      546,142,152
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                  (54,789,323)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      9,428,216
<NUMBER-OF-SHARES-REDEEMED>               (12,995,496)
<SHARES-REINVESTED>                          4,061,837
<NET-CHANGE-IN-ASSETS>                     815,452,619
<ACCUMULATED-NII-PRIOR>                        411,566
<ACCUMULATED-GAINS-PRIOR>                   24,578,091
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       14,152,289
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             32,762,820
<AVERAGE-NET-ASSETS>                     2,976,957,430
<PER-SHARE-NAV-BEGIN>                            12.25
<PER-SHARE-NII>                                 (0.06)
<PER-SHARE-GAIN-APPREC>                           2.34
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.73)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.80
<EXPENSE-RATIO>                                   1.54
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0


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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000093755
<NAME> STATE STREET RESEARCH MASTER INVESTMENT TRUST
<SERIES>
   <NUMBER> 013
   <NAME> STATE STREET RESEARCH INVESTMENT TRUST CLASS S

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<INVESTMENTS-AT-COST>                    2,293,328,906
<INVESTMENTS-AT-VALUE>                   3,538,268,021
<RECEIVABLES>                               14,077,353
<ASSETS-OTHER>                                  23,518
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           3,552,368,892
<PAYABLE-FOR-SECURITIES>                    38,087,893
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   94,308,444
<TOTAL-LIABILITIES>                        132,396,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 2,086,577,358
<SHARES-COMMON-STOCK>                       82,103,071
(SHARES-COMMON-PRIOR>                       82,918,341
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     88,456,082
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,244,939,115
<NET-ASSETS>                             3,419,972,555
<DIVIDEND-INCOME>                           27,167,741
<INTEREST-INCOME>                            4,494,074
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              32,594,845
<NET-INVESTMENT-INCOME>                      (933,030)
<REALIZED-GAINS-CURRENT>                   236,272,357
<APPREC-INCREASE-CURRENT>                  310,802,825
<NET-CHANGE-FROM-OPS>                      546,142,152
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (301,841)
<DISTRIBUTIONS-OF-GAINS>                  (58,323,229)
<DISTRIBUTIONS-OTHER>                      (1,837,421)
<NUMBER-OF-SHARES-SOLD>                      3,450,979
<NUMBER-OF-SHARES-REDEEMED>                (6,926,402)
<SHARES-REINVESTED>                          2,660,153
<NET-CHANGE-IN-ASSETS>                     815,452,619
<ACCUMULATED-NII-PRIOR>                        411,566
<ACCUMULATED-GAINS-PRIOR>                   24,578,091
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       14,152,289
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             32,762,820
<AVERAGE-NET-ASSETS>                     2,976,957,430
<PER-SHARE-NAV-BEGIN>                            12.42
<PER-SHARE-NII>                                   0.05
<PER-SHARE-GAIN-APPREC>                           2.38
<PER-SHARE-DIVIDEND>                            (0.00)
<PER-SHARE-DISTRIBUTIONS>                       (0.73)
<RETURNS-OF-CAPITAL>                            (0.02)
<PER-SHARE-NAV-END>                              14.10
<EXPENSE-RATIO>                                   0.68
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0


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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000093755
<NAME> STATE STREET RESEARCH MASTER INVESTMENT TRUST
<SERIES>
   <NUMBER> 014
   <NAME> STATE STREET RESEARCH INVESTMENT TRUST CLASS C

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<INVESTMENTS-AT-COST>                    2,293,328,906
<INVESTMENTS-AT-VALUE>                   3,538,268,021
<RECEIVABLES>                               14,077,353
<ASSETS-OTHER>                                  23,518
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           3,552,368,892
<PAYABLE-FOR-SECURITIES>                    38,087,893
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   94,308,444
<TOTAL-LIABILITIES>                        132,396,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 2,086,577,358
<SHARES-COMMON-STOCK>                        6,578,975
(SHARES-COMMON-PRIOR>                        4,495,491
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     88,456,082
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,244,939,115
<NET-ASSETS>                             3,419,972,555
<DIVIDEND-INCOME>                           27,167,741
<INTEREST-INCOME>                            4,494,074
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              32,594,845
<NET-INVESTMENT-INCOME>                      (933,030)
<REALIZED-GAINS-CURRENT>                   236,272,357
<APPREC-INCREASE-CURRENT>                  310,802,825
<NET-CHANGE-FROM-OPS>                      546,142,152
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                   (4,446,859)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      2,912,519
<NUMBER-OF-SHARES-REDEEMED>                (1,143,963)
<SHARES-REINVESTED>                            314,928
<NET-CHANGE-IN-ASSETS>                     815,452,619
<ACCUMULATED-NII-PRIOR>                        411,566
<ACCUMULATED-GAINS-PRIOR>                   24,578,091
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       14,152,289
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             32,762,820
<AVERAGE-NET-ASSETS>                     2,976,957,430
<PER-SHARE-NAV-BEGIN>                            12.29
<PER-SHARE-NII>                                 (0.08)
<PER-SHARE-GAIN-APPREC>                           2.35
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.73)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.83
<EXPENSE-RATIO>                                   1.68
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0


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

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000093755
<NAME> STATE STREET RESEARCH MASTER INVESTMENT TRUST
<SERIES>
   <NUMBER> 015
   <NAME> STATE STREET RESEARCH INVESTMENT TRUST CLASS B1

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<INVESTMENTS-AT-COST>                    2,293,328,906
<INVESTMENTS-AT-VALUE>                   3,538,268,021
<RECEIVABLES>                               14,077,353
<ASSETS-OTHER>                                  23,518
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           3,552,368,892
<PAYABLE-FOR-SECURITIES>                    38,087,893
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   94,308,444
<TOTAL-LIABILITIES>                        132,396,337
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 2,086,577,358
<SHARES-COMMON-STOCK>                       21,636,707
(SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     88,456,082
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,244,939,115
<NET-ASSETS>                             3,419,972,555
<DIVIDEND-INCOME>                           27,167,741
<INTEREST-INCOME>                            4,494,074
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              32,594,845
<NET-INVESTMENT-INCOME>                      (933,030)
<REALIZED-GAINS-CURRENT>                   236,272,357
<APPREC-INCREASE-CURRENT>                  310,802,825
<NET-CHANGE-FROM-OPS>                      546,142,152
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                  (12,745,685)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     22,072,928
<NUMBER-OF-SHARES-REDEEMED>                (1,393,563)
<SHARES-REINVESTED>                            957,342
<NET-CHANGE-IN-ASSETS>                     815,452,619
<ACCUMULATED-NII-PRIOR>                        411,566
<ACCUMULATED-GAINS-PRIOR>                   24,578,091
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       14,152,289
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             32,762,820
<AVERAGE-NET-ASSETS>                     2,976,957,430
<PER-SHARE-NAV-BEGIN>                            12.25
<PER-SHARE-NII>                                 (0.09)
<PER-SHARE-GAIN-APPREC>                           2.36
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.73)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.79
<EXPENSE-RATIO>                                   1.68
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0


</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission