<PAGE> PAGE 1
000 A000000 04/30/99
000 C000000 0000949275
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 PIONEER SMALL COMPANY FUND
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001 C000000 6177427825
002 A000000 60 STATE STREET
002 B000000 BOSTON
002 C000000 MA
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002 D020000 1820
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011 C030001 02109
<PAGE> PAGE 2
011 C040001 1820
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012 C010001 BOSTON
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012 C030001 02109
012 C040001 1820
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013 B030001 02110
013 B040001 2812
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015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02109
015 C040001 1975
015 E010001 X
018 000000 Y
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020 A000001 DONALDSON, LUFKIN & JENRETTE
020 B000001 13-2741729
020 C000001 61
020 A000002 INVESTMENT TECHNOLOGY
020 C000002 46
020 A000003 LYNCH, JONES & RYAN, INC.
020 B000003 13-3356934
020 C000003 43
020 A000004 BERNSTEIN, (SANFORD)
020 B000004 12-2625874
020 C000004 40
020 A000005 JONES & ASSOC.
020 B000005 95-3583143
020 C000005 40
020 A000006 CANTOR FITZGERALD & CO.
020 B000006 13-3680184
020 C000006 40
020 A000007 JEFFRIES & CO.
020 B000007 95-2622900
020 C000007 39
020 A000008 ESI SECURITIES
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020 A000009 PRUDENTIAL SEC.
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020 B000010 13-3299429
020 C000010 29
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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<PAGE> PAGE 6
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SIGNATURE ROBERT NAULT
TITLE ASSISTANT SECRETARY
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000949275
<NAME> PIONEER SMALL COMPANY FUND
<SERIES>
<NUMBER> 001
<NAME> PIONEER SMALL COMPANY FUND CLASS A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-END> APR-30-1999
<INVESTMENTS-AT-COST> 265012261
<INVESTMENTS-AT-VALUE> 262658290
<RECEIVABLES> 5871433
<ASSETS-OTHER> 3653
<OTHER-ITEMS-ASSETS> 15180
<TOTAL-ASSETS> 268548556
<PAYABLE-FOR-SECURITIES> 3021625
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1602877
<TOTAL-LIABILITIES> 4624502
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 297100483
<SHARES-COMMON-STOCK> 12119963
<SHARES-COMMON-PRIOR> 15219762
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 1001597
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 29820861
<ACCUM-APPREC-OR-DEPREC> (2353971)
<NET-ASSETS> 263924054
<DIVIDEND-INCOME> 1701086
<INTEREST-INCOME> 413895
<OTHER-INCOME> 0
<EXPENSES-NET> 3116578
<NET-INVESTMENT-INCOME> (1001597)
<REALIZED-GAINS-CURRENT> (29817957)
<APPREC-INCREASE-CURRENT> 37349803
<NET-CHANGE-FROM-OPS> 6530249
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 5859412
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2015202
<NUMBER-OF-SHARES-REDEEMED> 5639504
<SHARES-REINVESTED> 524503
<NET-CHANGE-IN-ASSETS> (84406479)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 12641361
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1311894
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3162063
<AVERAGE-NET-ASSETS> 147018882
<PER-SHARE-NAV-BEGIN> 10.68
<PER-SHARE-NII> (0.01)
<PER-SHARE-GAIN-APPREC> 0.31
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0.41
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.57
<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> 0000949275
<NAME> PIONEER SMALL COMPANY FUND
<SERIES>
<NUMBER> 002
<NAME> PIONEER SMALL COMPANY FUND CLASS B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-END> APR-30-1999
<INVESTMENTS-AT-COST> 265012261
<INVESTMENTS-AT-VALUE> 262658290
<RECEIVABLES> 5871433
<ASSETS-OTHER> 3653
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<TOTAL-ASSETS> 268548556
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<TOTAL-LIABILITIES> 4624502
<SENIOR-EQUITY> 0
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<DIVIDEND-INCOME> 1701086
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<OTHER-INCOME> 0
<EXPENSES-NET> 3116578
<NET-INVESTMENT-INCOME> (1001597)
<REALIZED-GAINS-CURRENT> (29817957)
<APPREC-INCREASE-CURRENT> 37349803
<NET-CHANGE-FROM-OPS> 6530249
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 6344415
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 796898
<NUMBER-OF-SHARES-REDEEMED> 5578849
<SHARES-REINVESTED> 518993
<NET-CHANGE-IN-ASSETS> (84406479)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 12641361
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1311894
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3162063
<AVERAGE-NET-ASSETS> 153485436
<PER-SHARE-NAV-BEGIN> 10.44
<PER-SHARE-NII> (0.10)
<PER-SHARE-GAIN-APPREC> 0.36
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0.41
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.29
<EXPENSE-RATIO> 2.38
[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> 0000949275
<NAME> PIONEER SMALL COMPANY FUND
<SERIES>
<NUMBER> 003
<NAME> PIONEER SMALL COMPANY FUND CLASS C
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-END> APR-30-1999
<INVESTMENTS-AT-COST> 265012261
<INVESTMENTS-AT-VALUE> 262658290
<RECEIVABLES> 5871433
<ASSETS-OTHER> 3653
<OTHER-ITEMS-ASSETS> 15180
<TOTAL-ASSETS> 268548556
<PAYABLE-FOR-SECURITIES> 3021625
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1602877
<TOTAL-LIABILITIES> 4624502
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 297100483
<SHARES-COMMON-STOCK> 788105
<SHARES-COMMON-PRIOR> 1120733
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 1001597
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 29820861
<ACCUM-APPREC-OR-DEPREC> (2353971)
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<NET-INVESTMENT-INCOME> (1001597)
<REALIZED-GAINS-CURRENT> (29817957)
<APPREC-INCREASE-CURRENT> 37349803
<NET-CHANGE-FROM-OPS> 6530249
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 440438
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 141653
<NUMBER-OF-SHARES-REDEEMED> 506868
<SHARES-REINVESTED> 32587
<NET-CHANGE-IN-ASSETS> (84406479)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 12641361
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1311894
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3162063
<AVERAGE-NET-ASSETS> 10268461
<PER-SHARE-NAV-BEGIN> 10.44
<PER-SHARE-NII> (0.12)
<PER-SHARE-GAIN-APPREC> 0.36
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0.41
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.27
<EXPENSE-RATIO> 2.42
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
Pioneer Small Company Fund
4/30/99 NSAR
Responses to Item 77D
Sub-Item 77D: Policies with respect to security investments (Y)
(a) None.
(b) None.
(c) None.
(d) None.
(e) Effective March 1, 1999, the registrant may invest in securities of other
investment companies to the extent permitted by Section 12(d)(1)(A) under the
Investment Company Act of 1940.
(f) None.
(g) Effective March 1, 1999, the registrant may invest up to 5% of its total
assets in below investment grade convertible debt securities (e.g., those
rated below BBB by Standard & Poor's Ratings Group, Baa by Moody's Investors
Service, Inc. or determined to be of comparable quality by the registrant's
investment adviser).
