ALGER FUND
NSAR-B, 1999-12-30
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<PAGE>      PAGE  1
000 B000000 10/31/99
000 C000000 0000003521
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 THE ALGER FUND
001 B000000 811-1355
001 C000000 2128068800
002 A000000 1 WORLD TRADE CENTER
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10048
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  6
007 C010100  1
007 C020100 ALGER MONEY MARKET PORTFOLIO
007 C030100 N
007 C010200  2
007 C010300  3
007 C010400  4
007 C010500  5
007 C020500 ALGER SMALL CAPITALIZATION PORTFOLIO
007 C030500 N
007 C010600  6
007 C020600 ALGER GROWTH PORTFOLIO
007 C030600 N
007 C010700  7
007 C020700 ALGER BALANCED PORTFOLIO
007 C030700 N
007 C010800  8
007 C020800 ALGER MIDCAP GROWTH PORTFOLIO
007 C030800 N
007 C010900  9
007 C020900 ALGER CAPITAL APPRECIATION PORTFOLIO
007 C030900 N
007 C011000 10
020 A000001 FRED ALGER & COMPANY, INCORPORATED
020 B000001 13-2665689
020 C000001   4923
020 A000002 INSTINET CORP.
020 B000002 13-3443395
020 C000002     13
020 A000003 PAINE WEBBER INC.
<PAGE>      PAGE  2
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022 A000001 MERRILL LYNCH PIERCE FENNER & SMITH
022 B000001 13-5674085
022 C000001  44365920
022 D000001   9226252
022 A000002 LEHMAN BROTHERS INC.
022 B000002 13-2518466
022 C000002    280306
022 D000002    210712
022 A000003 MORGAN STANLEY & CO., INC.
022 B000003 13-2655998
022 C000003    174012
022 D000003    135405
022 A000004 CREDIT SUISSE FIRST BOSTON CORP
022 B000004 13-5659485
022 C000004    147614
022 D000004    127989
022 A000005 PRUDENTIAL SECURITES INC
022 B000005 22-2347366
022 C000005    147542
022 D000005     90572
022 A000006 GOLDMAN SACHS & CO.
022 B000006 13-5108880
022 C000006    117945
022 D000006     93770
022 A000007 DEUTSCHE BANK ALEX BROWN
022 B000007 13-2730828
022 C000007    116547
022 D000007     87320
022 A000008 J.P. MORGAN SECURITIES INC
022 B000008 13-3224016
022 C000008     80815
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022 A000009 CIBC WORLD MARKETS INC
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<PAGE>      PAGE  3
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<PAGE>      PAGE  4
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<PAGE>      PAGE  5
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
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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  17
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066 A000900 Y
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SIGNATURE   GREGORY S. DUCH
TITLE       TREASURER


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</TABLE>

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</TABLE>

<TABLE> <S> <C>


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   <NAME> ALGER SMALL CAPITALIZATION CL C
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</TABLE>

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</TABLE>

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</TABLE>

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<ASSETS-OTHER>                                     227
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  809778
<PAYABLE-FOR-SECURITIES>                          8142
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        14947
<TOTAL-LIABILITIES>                              23089
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        552645
<SHARES-COMMON-STOCK>                            44814
<SHARES-COMMON-PRIOR>                             9102
<ACCUMULATED-NII-CURRENT>                      (16864)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         133837
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        117071
<NET-ASSETS>                                    786689
<DIVIDEND-INCOME>                                 1002
<INTEREST-INCOME>                                 1189
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   10284
<NET-INVESTMENT-INCOME>                         (8093)
<REALIZED-GAINS-CURRENT>                        125466
<APPREC-INCREASE-CURRENT>                        80515
<NET-CHANGE-FROM-OPS>                           197888
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (21244)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         135704
<NUMBER-OF-SHARES-REDEEMED>                   (102146)
<SHARES-REINVESTED>                               2154
<NET-CHANGE-IN-ASSETS>                          486366
<ACCUMULATED-NII-PRIOR>                         (8771)
<ACCUMULATED-GAINS-PRIOR>                        33123
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             4213
<INTEREST-EXPENSE>                                 429
<GROSS-EXPENSE>                                  10284
<AVERAGE-NET-ASSETS>                            390970
<PER-SHARE-NAV-BEGIN>                             8.90
<PER-SHARE-NII>                                  (.21)
<PER-SHARE-GAIN-APPREC>                           5.43
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                        (.84)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.28
<EXPENSE-RATIO>                                   2.22


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<CIK>     0000003521
<NAME>    THE ALGER FUND
<SERIES>
   <NUMBER> 92
   <NAME> ALGER CAPITAL APPRECIATION CL C
<MULTIPLIER> 1000
<CURRENCY>   US

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          OCT-31-1999
<PERIOD-END>                               OCT-31-1999
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                           655451
<INVESTMENTS-AT-VALUE>                          772522
<RECEIVABLES>                                    37029
<ASSETS-OTHER>                                     227
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  809778
<PAYABLE-FOR-SECURITIES>                          8142
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        14947
<TOTAL-LIABILITIES>                              23089
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        552645
<SHARES-COMMON-STOCK>                             3299
<SHARES-COMMON-PRIOR>                              111
<ACCUMULATED-NII-CURRENT>                      (16864)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         133837
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        117071
<NET-ASSETS>                                    786689
<DIVIDEND-INCOME>                                 1002
<INTEREST-INCOME>                                 1189
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   10284
<NET-INVESTMENT-INCOME>                         (8093)
<REALIZED-GAINS-CURRENT>                        125466
<APPREC-INCREASE-CURRENT>                        80515
<NET-CHANGE-FROM-OPS>                           197888
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                         (354)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           4547
<NUMBER-OF-SHARES-REDEEMED>                     (1385)
<SHARES-REINVESTED>                                 26
<NET-CHANGE-IN-ASSETS>                          486366
<ACCUMULATED-NII-PRIOR>                         (8771)
<ACCUMULATED-GAINS-PRIOR>                        33123
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             4213
<INTEREST-EXPENSE>                                 429
<GROSS-EXPENSE>                                  10284
<AVERAGE-NET-ASSETS>                             60910
<PER-SHARE-NAV-BEGIN>                              8.9
<PER-SHARE-NII>                                  (.22)
<PER-SHARE-GAIN-APPREC>                           5.43
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                        (.84)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.27
<EXPENSE-RATIO>                                   2.25


</TABLE>


                                     ARTHUR
                                    ANDERSEN

                                                     ---------------------------
                                                             Arthur Andersen LLP

                                                     ---------------------------
                                                     1345 Avenue of the Americas
                                                          New York NY 10105-0032

To the Shareholders and
Board of Trustees of The Alger Fund:

In planning and performing our audit of the financial statements of The Alger
Fund for the year ended October 31, 1999, 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, not to
provide assurance on internal control.

The management of The Alger 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 internal control, error 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 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 relatively low level the
risk that misstatements caused by error or fraud 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 internal control and
its operation, including controls for safeguarding securities, that we consider
to be material weaknesses as defined above as of October 31, 1999.

This report is intended solely for the information and use of management, the
Board of Trustees of The Alger Fund, and the Securities and Exchange Commission.

                                                          /s/Arthur Andersen LLP

New York, New York
December 7, 1999



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