STATE STREET RESEARCH CAPITAL TRUST
NSAR-B, 1997-11-26
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<PAGE>      PAGE  1
000 B000000 09/30/97
000 C000000 727101
000 D000000 N
000 E000000 F
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 U
001 A000000 STATE STREET RESEARCH CAPITAL TRUST
001 B000000 811-3838
001 C000000 6173577800
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
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007 C020100 STATE STREET RESEARCH CAPITAL FUND
007 C030100 N
007 C010200  2
007 C020200 STATE STREET RESEARCH EMERGING GROWTH FUND
007 C030200 N
007 C010300  3
007 C020300 STATE STREET RESEARCH AURORA FUND
007 C030300 N
007 C010400  4
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
014 A00AA01 METLIFE SECURITIES, INC.
014 B00AA01 8-30447
014 A00AA02 STATE STREET RESEARCH INVESTMENT SVCS., INC.
014 B00AA02 8-35442
014 A00AA03 DELETE
014 A00AA04 METRIC CAPITAL CORP.
014 B00AA04 8-16829
014 A00AA05 METROPOLITAN LIFE INSURANCE CO.
014 B00AA05 8-14901
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   21
<PAGE>      PAGE  2
019 C00AA00 STATESTRES
020 A000001 SOLOMON BROTHERS INC.
020 B000001 13-3082694
020 C000001    298
020 A000002 CS FIRST BOSTON CORP.
020 B000002 13-5659485
020 C000002    286
020 A000003 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
020 B000003 13-2741729
020 C000003    256
020 A000004 GOLDMAN SACHS & CO.
020 B000004 13-5108880
020 C000004    253
020 A000005 MONTGOMERY SECURITIES
020 B000005 94-1701676
020 C000005    225
020 A000006 MORGAN STANLEY & CO.
020 B000006 13-2655998
020 C000006    196
020 A000007 MERRILL LYNCH PIERCE, FENNER & SMITH INC.
020 B000007 13-5674085
020 C000007    192
020 A000008 LEHMAN BROTHERS, INC.
020 B000008 13-2518466
020 C000008    186
020 A000009 UBS SECURITIES
020 B000009 13-2932996
020 C000009    177
020 A000010 SANFORD C. BERNSTEIN & CO.
020 B000010 13-2625874
020 C000010    155
021  000000     3856
022 A000001 AMERICAN EXPRESS CREDIT CORP
022 C000001    552328
022 D000001         0
022 A000002 MERRILL LYNCH PIERCE FENNER & SMITH INC.
022 B000002 13-5674085
022 C000002    506920
022 D000002      1790
022 A000003 FORD MOTOR CREDIT CORP
022 C000003    506468
022 D000003         0
022 A000004 CHEVRON OIL FINANCE CO.
022 C000004    404532
022 D000004         0
022 A000005 GENERAL ELECTRIC CAPITAL CORP.
022 C000005    272086
022 D000005         0
022 A000006 BENEFICIAL CORP.
022 C000006    256299
022 D000006         0
<PAGE>      PAGE  3
022 A000007 CS FIRST BOSTON CORP.
022 B000007 13-5659485
022 C000007    231823
022 D000007         0
022 A000008 HOUSEHOLD FINANCE CORP.
022 C000008    173541
022 D000008         0
022 A000009 GOLDMAN SACHS & CO.
022 C000009    127205
022 D000009     43666
022 A000010 STATE STREET BANK & TRUST CO.
022 C000010    141284
022 D000010         0
023 C000000    4192969
023 D000000     139445
024  00AA00 Y
025 A00AA01 LEHMAN BROTHERS, INC.
025 B00AA01 13-2518466
025 C00AA01 D
025 D00AA01   22054
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025 D00AA03       0
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077 M000000 Y
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
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080 A00AA00 FEDERAL INSURANCE COMPANY
080 C00AA00    15000
081 A00AA00 Y
081 B00AA00  26
<PAGE>      PAGE  4
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<PAGE>      PAGE  5
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<PAGE>      PAGE  6
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
066 C000200 N
066 D000200 N
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<PAGE>      PAGE  10
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SIGNATURE   DOUGLAS A. ROMICH                            
TITLE       ASSISTANT TREASURER 
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 011
   <NAME> STATE STREET RESEARCH CAPITAL FUND CLASS A
       
<S>                             <C>
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<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
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<NET-INVESTMENT-INCOME>                    (8,567,006)
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<NET-CHANGE-FROM-OPS>                       95,115,244
<EQUALIZATION>                                       0
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 012
   <NAME> STATE STREEET RESEARCH CAPITAL FUND CLASS B
       
<S>                             <C>
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<NUMBER-OF-SHARES-REDEEMED>               (10,341,798)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     616,897,906
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                 (2,079,183)
<GROSS-ADVISORY-FEES>                        5,786,403
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,589,981
<AVERAGE-NET-ASSETS>                       771,520,400
<PER-SHARE-NAV-BEGIN>                            13.40
<PER-SHARE-NII>                                 (0.17)
<PER-SHARE-GAIN-APPREC>                           1.01
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.24
<EXPENSE-RATIO>                                   1.98
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 013
   <NAME> STATE STREET RESEARCH CAPITAL FUND CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                      996,824,517
<INVESTMENTS-AT-VALUE>                   1,346,161,859
<RECEIVABLES>                                4,955,453
<ASSETS-OTHER>                                  72,295
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           1,351,189,607
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    7,991,967
<TOTAL-LIABILITIES>                          7,991,967
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   985,348,642
<SHARES-COMMON-STOCK>                       12,682,096
<SHARES-COMMON-PRIOR>                        2,499,112
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      8,511,656
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   349,337,342
<NET-ASSETS>                             1,343,197,640
<DIVIDEND-INCOME>                            3,023,118
<INTEREST-INCOME>                            1,999,857
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,589,981
<NET-INVESTMENT-INCOME>                    (8,567,006)
<REALIZED-GAINS-CURRENT>                    11,938,430
<APPREC-INCREASE-CURRENT>                   91,743,820
<NET-CHANGE-FROM-OPS>                       95,115,244
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     11,310,523
<NUMBER-OF-SHARES-REDEEMED>                (1,127,539)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     616,897,906
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                 (2,079,183)
<GROSS-ADVISORY-FEES>                        5,786,403
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,589,981
<AVERAGE-NET-ASSETS>                       771,520,400
<PER-SHARE-NAV-BEGIN>                            13,94
<PER-SHARE-NII>                                 (0.05)
<PER-SHARE-GAIN-APPREC>                           1.07
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.96
<EXPENSE-RATIO>                                   0.96
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 014
   <NAME> STATE STREET RESEARCH CAPITAL FUND CLASS D
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                      996,824,517
<INVESTMENTS-AT-VALUE>                   1,346,161,859
<RECEIVABLES>                                4,955,453
<ASSETS-OTHER>                                  72,295
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           1,351,189,607
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    7,991,967
<TOTAL-LIABILITIES>                          7,991,967
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   985,348,642
<SHARES-COMMON-STOCK>                        8,418,494
<SHARES-COMMON-PRIOR>                       14,180,375
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      8,511,656
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   349,337,342
<NET-ASSETS>                             1,343,197,640
<DIVIDEND-INCOME>                            3,023,118
<INTEREST-INCOME>                            1,999,857
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              13,589,981
<NET-INVESTMENT-INCOME>                    (8,567,006)
<REALIZED-GAINS-CURRENT>                    11,938,430
<APPREC-INCREASE-CURRENT>                   91,743,820
<NET-CHANGE-FROM-OPS>                       95,115,244
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      3,363,801
<NUMBER-OF-SHARES-REDEEMED>                (9,125,682)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     616,897,906
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                 (2,079,183)
<GROSS-ADVISORY-FEES>                        5,786,403
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             13,589,981
<AVERAGE-NET-ASSETS>                       771,520,400
<PER-SHARE-NAV-BEGIN>                            13.42
<PER-SHARE-NII>                                 (0.17)
<PER-SHARE-GAIN-APPREC>                           1.01
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.26
<EXPENSE-RATIO>                                   1.98
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 021
   <NAME> STATE STREET RESEARCH EMERGING GROWTH FUND CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                       67,200,529
<INVESTMENTS-AT-VALUE>                      88,831,602
<RECEIVABLES>                                3,115,982
<ASSETS-OTHER>                                  24,033
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              91,971,617
<PAYABLE-FOR-SECURITIES>                     2,260,501
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      285,952
<TOTAL-LIABILITIES>                          2,546,453
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    54,200,917
<SHARES-COMMON-STOCK>                        2,218,121
<SHARES-COMMON-PRIOR>                        1,747,342
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     13,593,174
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    21,631,073
<NET-ASSETS>                                89,425,164
<DIVIDEND-INCOME>                              132,030
<INTEREST-INCOME>                              302,291
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,049,359
<NET-INVESTMENT-INCOME>                      (615,038)
<REALIZED-GAINS-CURRENT>                    14,594,498
<APPREC-INCREASE-CURRENT>                   12,653,977
<NET-CHANGE-FROM-OPS>                       26,633,437
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                   (1,462,798)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        736,606
<NUMBER-OF-SHARES-REDEEMED>                  (399,385)
<SHARES-REINVESTED>                            133,558
<NET-CHANGE-IN-ASSETS>                      28,165,353
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    4,184,442
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          461,544
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,235,177
<AVERAGE-NET-ASSETS>                        61,539,200
<PER-SHARE-NAV-BEGIN>                            11.33
<PER-SHARE-NII>                                 (0.08)
<PER-SHARE-GAIN-APPREC>                           5.13
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              15.53
<EXPENSE-RATIO>                                   1.35
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 022
   <NAME> STATE STREET RESEARCH EMERGING GROWTH FUND CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                       67,200,529
<INVESTMENTS-AT-VALUE>                      88,831,602
<RECEIVABLES>                                3,115,982
<ASSETS-OTHER>                                  24,033
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              91,971,617
<PAYABLE-FOR-SECURITIES>                     2,260,501
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      285,952
<TOTAL-LIABILITIES>                          2,546,453
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    54,200,917
<SHARES-COMMON-STOCK>                        2,684,484
<SHARES-COMMON-PRIOR>                        2,129,754
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     13,593,174
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    21,631,073
<NET-ASSETS>                                89,425,164
<DIVIDEND-INCOME>                              132,030
<INTEREST-INCOME>                              302,291
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,049,359
<NET-INVESTMENT-INCOME>                      (615,038)
<REALIZED-GAINS-CURRENT>                    14,594,498
<APPREC-INCREASE-CURRENT>                   12,653,977
<NET-CHANGE-FROM-OPS>                       26,633,437
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                   (1,761,067)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        916,437
<NUMBER-OF-SHARES-REDEEMED>                  (519,013)
<SHARES-REINVESTED>                            157,306
<NET-CHANGE-IN-ASSETS>                      28,165,353
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    4,184,442
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          461,544
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,235,177
<AVERAGE-NET-ASSETS>                        61,539,200
<PER-SHARE-NAV-BEGIN>                            11.11
<PER-SHARE-NII>                                 (0.16)
<PER-SHARE-GAIN-APPREC>                           4.99
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              15.09
<EXPENSE-RATIO>                                   2.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 023
   <NAME> STATE STREET RESEARCH EMERGING GROWTH FUND CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                       67,200,529
<INVESTMENTS-AT-VALUE>                      88,831,602
<RECEIVABLES>                                3,115,982
<ASSETS-OTHER>                                  24,033
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              91,971,617
<PAYABLE-FOR-SECURITIES>                     2,260,501
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      285,952
<TOTAL-LIABILITIES>                          2,546,453
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    54,200,917
<SHARES-COMMON-STOCK>                          445,503
<SHARES-COMMON-PRIOR>                        1,163,690
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     13,593,174
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    21,631,073
<NET-ASSETS>                                89,425,164
<DIVIDEND-INCOME>                              132,030
<INTEREST-INCOME>                              302,291
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,049,359
<NET-INVESTMENT-INCOME>                      (615,038)
<REALIZED-GAINS-CURRENT>                    14,594,498
<APPREC-INCREASE-CURRENT>                   12,653,977
<NET-CHANGE-FROM-OPS>                       26,633,437
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                   (1,026,873)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        315,695
<NUMBER-OF-SHARES-REDEEMED>                (1,129,494)
<SHARES-REINVESTED>                             95,612
<NET-CHANGE-IN-ASSETS>                      28,165,353
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    4,184,442
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          461,544
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,235,177
<AVERAGE-NET-ASSETS>                        61,539,200
<PER-SHARE-NAV-BEGIN>                            11.44
<PER-SHARE-NII>                                 (0.04)
<PER-SHARE-GAIN-APPREC>                           5.18
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              15.73
<EXPENSE-RATIO>                                   1.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 024
   <NAME> STATE STREET RESEARCH EMERGING GROWTH FUND CLASS D
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                       67,200,529
<INVESTMENTS-AT-VALUE>                      88,831,602
<RECEIVABLES>                                3,115,982
<ASSETS-OTHER>                                  24,033
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              91,971,617
<PAYABLE-FOR-SECURITIES>                     2,260,501
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      285,952
<TOTAL-LIABILITIES>                          2,546,453
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    54,200,917
<SHARES-COMMON-STOCK>                          494,177
<SHARES-COMMON-PRIOR>                          405,535
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     13,593,174
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    21,631,073
<NET-ASSETS>                                89,425,164
<DIVIDEND-INCOME>                              132,030
<INTEREST-INCOME>                              302,291
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,049,359
<NET-INVESTMENT-INCOME>                      (615,038)
<REALIZED-GAINS-CURRENT>                    14,594,498
<APPREC-INCREASE-CURRENT>                   12,653,977
<NET-CHANGE-FROM-OPS>                       26,633,437
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                     (320,673)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        146,268
<NUMBER-OF-SHARES-REDEEMED>                   (86,639)
<SHARES-REINVESTED>                             29,013
<NET-CHANGE-IN-ASSETS>                      28,165,353
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    4,184,442
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          461,544
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,235,177
<AVERAGE-NET-ASSETS>                        61,539,200
<PER-SHARE-NAV-BEGIN>                            11.10
<PER-SHARE-NII>                                 (0.16)
<PER-SHARE-GAIN-APPREC>                           5.01
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (0.85)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              15.10
<EXPENSE-RATIO>                                   2.10
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 031
   <NAME> STATE STREET RESEARCH AURORA FUND CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                      426,434,469
<INVESTMENTS-AT-VALUE>                     485,724,612
<RECEIVABLES>                               11,171,846
<ASSETS-OTHER>                                 118,490
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             497,014,948
<PAYABLE-FOR-SECURITIES>                    20,687,805
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      872,531
<TOTAL-LIABILITIES>                         21,560,336
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   412,007,666
<SHARES-COMMON-STOCK>                        7,621,324
<SHARES-COMMON-PRIOR>                           73,305
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      4,156,803
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    59,290,143
<NET-ASSETS>                               475,454,612
<DIVIDEND-INCOME>                              212,366
<INTEREST-INCOME>                            1,052,808
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               1,498,550
<NET-INVESTMENT-INCOME>                      (233,376)
<REALIZED-GAINS-CURRENT>                     4,589,402
<APPREC-INCREASE-CURRENT>                   57,978,769
<NET-CHANGE-FROM-OPS>                       62,334,795
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                     (275,192)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      7,718,462
<NUMBER-OF-SHARES-REDEEMED>                  (191,210)
<SHARES-REINVESTED>                             20,767
<NET-CHANGE-IN-ASSETS>                     466,262,970
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    1,928,878
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          726,266
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,633,939
<AVERAGE-NET-ASSETS>                        85,443,059
<PER-SHARE-NAV-BEGIN>                            15.14
<PER-SHARE-NII>                                   0.03
<PER-SHARE-GAIN-APPREC>                           9.02
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (3.48)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              20.71
<EXPENSE-RATIO>                                   1.34
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 032
   <NAME> STATE STREET RESEARCH AURORA FUND CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                      426,434,469
<INVESTMENTS-AT-VALUE>                     485,724,612
<RECEIVABLES>                               11,171,846
<ASSETS-OTHER>                                 118,490
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             497,014,948
<PAYABLE-FOR-SECURITIES>                    20,687,805
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      872,531
<TOTAL-LIABILITIES>                         21,560,336
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   412,007,666
<SHARES-COMMON-STOCK>                       11,606,420
<SHARES-COMMON-PRIOR>                           10,991
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      4,156,803
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    59,290,143
<NET-ASSETS>                               475,454,612
<DIVIDEND-INCOME>                              212,366
<INTEREST-INCOME>                            1,052,808
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<NET-INVESTMENT-INCOME>                      (233,376)
<REALIZED-GAINS-CURRENT>                     4,589,402
<APPREC-INCREASE-CURRENT>                   57,978,769
<NET-CHANGE-FROM-OPS>                       62,334,795
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-REDEEMED>                   (78,457)
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<ACCUMULATED-GAINS-PRIOR>                    1,928,878
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<PER-SHARE-NAV-BEGIN>                            15.02
<PER-SHARE-NII>                                 (0.09)
<PER-SHARE-GAIN-APPREC>                           8.88
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (3.48)
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<EXPENSE-RATIO>                                   2.08
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 033
   <NAME> STATE STREET RESEARCH AURORA FUND CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                      426,434,469
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<PAYABLE-FOR-SECURITIES>                    20,687,805
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<TOTAL-LIABILITIES>                         21,560,336
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<PAID-IN-CAPITAL-COMMON>                   412,007,666
<SHARES-COMMON-STOCK>                          697,968
<SHARES-COMMON-PRIOR>                          510,530
<ACCUMULATED-NII-CURRENT>                            0
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<DIVIDEND-INCOME>                              212,366
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<NET-INVESTMENT-INCOME>                      (233,376)
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<APPREC-INCREASE-CURRENT>                   57,978,769
<NET-CHANGE-FROM-OPS>                       62,334,795
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                   (1,776,578)
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<NUMBER-OF-SHARES-REDEEMED>                   (14,394)
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<PER-SHARE-DIVIDEND>                                 0
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<RETURNS-OF-CAPITAL>                                 0
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<EXPENSE-RATIO>                                   1.16
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000727101
<NAME> STATE STREET RESEARCH CAPITAL TRUST
<SERIES>
   <NUMBER> 034
   <NAME> STATE STREET RESEARCH AURORA FUND CLASS D
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-END>                               SEP-30-1997
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<OTHER-ITEMS-LIABILITIES>                      872,531
<TOTAL-LIABILITIES>                         21,560,336
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   412,007,666
<SHARES-COMMON-STOCK>                        3,302,603
<SHARES-COMMON-PRIOR>                           10,991
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      4,156,803
<OVERDISTRIBUTION-GAINS>                             0
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<APPREC-INCREASE-CURRENT>                   57,978,769
<NET-CHANGE-FROM-OPS>                       62,334,795
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<DISTRIBUTIONS-OF-GAINS>                      (38,226)
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<NUMBER-OF-SHARES-SOLD>                      3,388,937
<NUMBER-OF-SHARES-REDEEMED>                  (100,246)
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<ACCUMULATED-GAINS-PRIOR>                    1,928,878
<OVERDISTRIB-NII-PRIOR>                              0
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<EXPENSE-RATIO>                                   2.09
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</TABLE>


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