-----------------------------
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                                                   -----------------------------
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                                                   hours per response: 19.3
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                   FORM N-CSR


              CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
                              INVESTMENT COMPANIES


Investment Company Act file number    811-09815
                                   ------------------------------------


                               The Arbitrage Funds
- --------------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)


  650 Fifth Avenue                New York, New York                 10019
- --------------------------------------------------------------------------------
       (Address of principal executive offices)                   (Zip code)

                                 John S. Orrico

 Water Island Capital, LLC      650 Fifth Avenue New York,      New York 10019
- --------------------------------------------------------------------------------
                     (Name and address of agent for service)

Registrant's telephone number, including area code:  (212) 259-2655
                                                     ----------------------

Date of fiscal year end:         May 31, 2005
                          -----------------------------------

Date of reporting period:        May 31, 2005
                          -----------------------------------

Form N-CSR is to be used by management investment companies to file reports with
the Commission not later than 10 days after the  transmission to stockholders of
any report that is required to be transmitted to  stockholders  under Rule 30e-1
under the Investment Company Act of 1940 (17 CFR 270.30e-1).  The Commission may
use the information provided on Form N-CSR in its regulatory, disclosure review,
inspection, and policymaking roles.

A registrant  is required to disclose the  information  specified by Form N-CSR,
and the  Commission  will make this  information  public.  A  registrant  is not
required to respond to the  collection  of  information  contained in Form N-CSR
unless the Form  displays a  currently  valid  Office of  Management  and Budget
("OMB")  control number.  Please direct comments  concerning the accuracy of the
information  collection  burden  estimate and any  suggestions  for reducing the
burden to Secretary,  Securities and Exchange Commission,  450 Fifth Street, NW,
Washington,  DC 20549-0609.  The OMB has reviewed this collection of information
under the clearance requirements of 44 U.S.C. ss. 3507.






ITEM 1. REPORTS TO STOCKHOLDERS.


                               [GRAPHIC OMITTED]

                               THE ARBITRAGE FUND

                        A SERIES OF THE ARBITRAGE FUNDS

                                650 Fifth Avenue
                            New York, New York 10019









                                 ANNUAL REPORT
                                  MAY 31, 2005









                               WWW.THEARBFUND.COM








                               [GRAPHIC OMITTED]

                               THE ARBITRAGE FUND

                           Water Island Capital, LLC
                                650 Fifth Avenue
                            New York, New York 10019
                                      ----
                      TEL: 212.259.2656 FAX: 212.259.2698

June 15, 2005

Dear Shareholder:

The Arbitrage Fund runs on a May 31 fiscal year. Accordingly,  we are pleased to
enclose this year's Annual Report  covering the period from June 1, 2004 through
May 31,  2005.  As we  have  done  in the  past,  we  would  like  to take  this
opportunity  to review some of the key elements  affecting the merger  arbitrage
market  today and share with you our  outlook  going  forward.

Over the last 12 months,  the merger  arbitrage market has experienced a seismic
shift from  limited  dealflow in the US (or abroad for that  matter) to what can
aptly be described as a global wave of dealflow following the conclusion of last
year's  presidential  election and the dramatic increase in economic activity in
places such as Australia  and China.

SOMETHING OLD AND SOMETHING NEW

A wise man once observed  "it's always  darkest  before the dawn" and the merger
market is no different.  As new pent up dealflow overwhelmed the small stable of
existing  transactions with thin spreads,  arbitrage capital flowed out of those
thin pre-existing deals and into newer deals with better spreads. Better spreads
("profit margins") helped not just by increased deal volume but also in no small
measure by the rising short term interest rates on which spreads are based.  The
result has been some  dislocation  in the market as spreads on old deals widened
as  capital  flowed  out of the old and  into  the  new.  This  reallocation  of
arbitrage capital has resulted in a slight midyear reduction in the Fund's NAV.

We call this  movement out of the old and into the new a  dislocation  and not a
decline  for good  reason.  Far from being a  negative  or leading to an overall
decline,  wider spreads fueled by the combined  effect of stronger  dealflow and
higher short term rates are a positive,  creating excellent profit opportunities
for merger arbitrageurs, the sorts of which we have not seen since the last peak
in the merger  cycle back in  1998-2000.  While not easy to predict,  and always
subject to the macro or  geopolitical  risks any  portfolio  is  subject  to, we
believe  we are in the early  stages of a return  to such  peak  levels.  In the
shorter term, we have experienced a little of that dark before the dawn.

Consequently,  our portfolio  holds a broad array of deals well  diversified  by
industry and geography. The portfolio is filled with wide spreads that we expect
will generate positive and competitive  returns as they close over the weeks and
months ahead.

On behalf of the entire team here at Water Island, I would like to tell you that
we are  committed to  maximizing  risk  adjusted  returns in every way prudently
possible.  We strive to see the Fund's performance return to the levels of prior
years, and see the opportunity to do so.

                                                                               1


When  we  look  around  at our  peers  in  the  arbitrage/hedge  fund  community
attempting  to cope  with the  impact of  increased  interest  expense  on their
borrowed  money and as we observe some of the public fund  alternatives  such as
high yield and REITs  struggling  to sustain  their record  highs,  we feel very
comfortable with the prospects for our strategy on both an absolute and relative
basis.

We thank  you for your  commitment  and,  as  always,  we  welcome  your  calls.

Sincerely,

/s/ John S. Orrico

John S. Orrico, CFA
Portfolio Manager
President, Water Island Capital, LLC









2


           COMPARISON OF THE CHANGE IN VALUE OF A $10,000 INVESTMENT
               IN THE ARBITRAGE FUND(A) VERSUS THE S&P 500 INDEX


                               [GRAPHIC OMITTED]

             The Arbitrage Fund                            S&P 500 Index
             ------------------                            -------------
      09/17/00                  10,000            09/17/00                10,000
      11/30/00      -1.80%       9,820            11/30/00    -10.08%      8,992
      02/28/01      28.88%      12,656            02/28/01     -5.43%      8,504
      05/31/01      -7.61%      11,693            05/31/01      1.62%      8,641
      08/31/01      -7.38%      10,831            08/31/01     -9.44%      7,826
      11/30/01      -0.83%      10,740            11/30/01      0.86%      7,893
      02/28/02       5.52%      11,333            02/28/02     -2.51%      7,695
      05/31/02       2.29%      11,592            05/31/02     -3.25%      7,445
      08/31/02       3.13%      11,955            08/31/02    -13.80%      6,417
    11/30/2002      -0.26%      11,924          11/30/2002      2.68%      6,590
     2/28/2003       3.89%      12,180           2/28/2003     -9.72%      5,949
     5/31/2003       2.01%      12,799           5/31/2003     15.05%      6,845
     8/31/2003       1.64%      13,008           8/31/2003      5.07%      7,192
    11/30/2003       5.73%      13,753          11/30/2003      5.46%      7,584
     2/29/2004       3.30%      14,207           2/29/2004      8.67%      8,241
     5/31/2004      -3.91%      13,651           5/31/2004     -1.72%      8,099
     8/31/2004      -3.75%      13,139           8/31/2004     -1.03%      8,016
    11/30/2004       3.57%      13,608          11/30/2004      6.78%      8,559
     2/28/2005       0.84%      13,722           2/28/2005      3.01%      8,816
     5/31/2005      -1.57%      13,506           5/31/2005     -0.57%      8,766



                                             AVERAGE ANNUAL TOTAL RETURNS(B)
                                            (FOR PERIODS ENDED MAY 31, 2005)

                                               1 YEAR     SINCE INCEPTION
                                              ---------  -----------------
         The Arbitrage Fund - Class R          (1.07%)       6.60% (c)
         The Arbitrage Fund - Class I          (0.82%)       0.32% (d)
         Standard & Poor's 500 Index            8.24%       (2.76%)(c)


     (a)  The line graph above  represents  performance  of Class R shares only,
          which will vary from the  performance  of Class I shares  based on the
          difference in fees paid by shareholders in the different classes.
     (b)  The returns  shown do not reflect the deduction of taxes a shareholder
          would pay on Fund distributions or the redemption of Fund shares.
     (c)  Represents the period from the  commencement  of operations of Class R
          shares (September 17, 2000) through May 31, 2005.
     (d)  Represents the period from the  commencement  of operations of Class I
          shares (October 17, 2003) through May 31, 2005.

                                                                               3


                               THE ARBITRAGE FUND
                             Portfolio Information
                            May 31, 2005 (Unaudited)
================================================================================


ASSET ALLOCATION (as a percentage of net assets)
- --------------------------------------------------------------------------------

                                     Common Stocks - 93.75%
                                     Real Estate Investment Trusts - 0.42%
    [GRAPHIC OMITTED]                Equity Swaps - 4.56%
                                     Other - 1.27%










4


                               THE ARBITRAGE FUND
                      Statement of Assets and Liabilities
                                  May 31, 2005
================================================================================
ASSETS
  Investments in securities:
    At acquisition cost                                           $219,697,605
                                                                  ============
    At value (Note 1)                                             $228,111,421
  Cash                                                                  31,726
  Cash denominated in foreign currency (a) (Note 6)                    215,823
  Deposits with brokers for securities sold short (Note 1)          84,108,343
  Dividends and interest receivable                                    356,412
  Receivable for investment securities sold                          7,590,451
  Receivable for capital shares sold                                   107,002
  Net unrealized appreciation on forward foreign currency            1,175,034
    exchange contracts (Note 9)
  Other assets                                                          49,991
                                                                  ------------
      Total Assets                                                 321,746,203
                                                                  ------------
LIABILITIES
  Written options, at value (Notes 1 and 4) (premiums
    received $463,871)                                                 608,602
  Securities sold short, at value (Note 1) (proceeds
    $78,769,029)                                                    82,130,279
  Payable for investment securities purchased                        9,621,945
  Payable for capital shares redeemed                                  461,354
  Dividends payable on securities sold short (Note 1)                   59,429
  Payable to Adviser (Note 3)                                          271,159
  Payable to Administrator (Note 3)                                     34,500
  Other accrued expenses and liabilities                               107,114
                                                                  ------------
    Total Liabilities                                               93,294,382
                                                                  ------------
NET ASSETS                                                        $228,451,821
                                                                  ============
NET ASSETS CONSIST OF:
Paid-in capital                                                   $237,861,823
Accumulated net realized losses on security transactions
  and option contracts                                             (15,485,917)
Net unrealized appreciation (depreciation) on:
  Investments                                                        8,413,816
  Short positions                                                   (3,361,250)
  Written option contracts                                            (144,731)
  Translation of assets in foreign currencies                        1,168,080
                                                                  ------------
Net Assets                                                        $228,451,821
                                                                  ============

PRICING OF CLASS R SHARES
Net assets applicable to Class R shares                           $134,034,909
                                                                  ============
Shares of beneficial interest outstanding (unlimited number
  of shares authorized, no par value)                               11,282,381
                                                                  ============
Net asset value and offering price per share (b)                  $      11.88
                                                                  ============
PRICING OF CLASS I SHARES
Net assets applicable to Class I shares                           $ 94,416,912
                                                                  ============

Shares of beneficial interest outstanding (unlimited number
  of shares authorized, no par value)                                7,914,256
                                                                  ============

Net asset value and offering price per share (b)                  $      11.93
                                                                  ============


(a)  The cost of cash denominated in foreign currency is $215,821.

(b)  Redemption price varies based on length of time held (Note 1).

See accompanying notes to financial statements.

                                                                               5


                               THE ARBITRAGE FUND
                            Statement of Operations
                        For the Year Ended May 31, 2005
================================================================================
INVESTMENT INCOME
  Dividends                                                       $  2,315,954
  Interest                                                           1,113,411
  Other (Note 8)                                                         1,358
                                                                  ------------
     Total Income                                                    3,430,723
                                                                  ------------
EXPENSES
  Investment advisory fees (Note 3)                                  4,738,991
  Dividend expense                                                     937,396
  Distribution expense, Class R (Note 3)                               463,237
  Administration fees (Note 3)                                         337,051
  Custodian and bank service fees                                      150,008
  Fund accounting fees (Note 3)                                        111,839
  Transfer agent and shareholder services fees,
    Class R (Note 3)                                                    30,708
  Transfer agent, account maintenance and shareholder
    services fees, Class I (Note 3)                                     51,140
  Registration and filing fees, Common                                  25,509
  Registration and filing fees, Class R                                 27,288
  Registration and filing fees, Class I                                 21,233
  Professional fees                                                     72,046
  Insurance expense                                                     55,651
  Postage and supplies                                                  54,337
  Trustees' fees                                                        43,008
  Compliance service fees (Note 3)                                      20,000
  Printing of shareholder reports                                       11,543
  Other expenses                                                        18,227
                                                                  ------------
    Total Expenses                                                   7,169,212
  Fees waived by the Adviser (Note 3)                                 (267,326)
  Class R expenses reimbursed by the Adviser (Note 3)                  (57,996)
  Class I expenses reimbursed by the Adviser (Note 3)                  (72,373)
                                                                  ------------
     Net Expenses                                                    6,771,517
                                                                  ------------

NET INVESTMENT LOSS                                                 (3,340,794)
                                                                  ------------

REALIZED AND UNREALIZED  GAINS (LOSSES) ON  INVESTMENTS
  AND FOREIGN  CURRENCIES (Note 6)
  Net realized gains (losses) from:
    Security transactions                                           (2,877,488)
    Option contracts                                                   867,279
    Foreign currency transactions                                     (267,246)
  Net change in unrealized appreciation/depreciation on:
    Investments                                                      2,933,375
  Short positions                                                   (3,695,496)
  Written option contracts                                              88,045
  Foreign currency translation                                       1,168,107
                                                                  ------------

NET REALIZED AND UNREALIZED LOSSES ON INVESTMENTS
   AND FOREIGN CURRENCIES                                           (1,783,424)
                                                                  ------------

NET DECREASE IN NET ASSETS FROM OPERATIONS                        $ (5,124,218)
                                                                  ============



See accompanying notes to financial statements.
6



                                         THE ARBITRAGE FUND
                                 Statements of Changes in Net Assets
==================================================================================================
                                                                      YEAR             YEAR
                                                                      ENDED            ENDED
                                                                      MAY 31,          MAY 31,
                                                                       2005             2004
- --------------------------------------------------------------------------------------------------
                                                                             
FROM OPERATIONS
  Net investment loss                                             $ (3,340,794)    $  (4,566,037)
  Net realized gains (losses) from:
    Security transactions                                           (2,877,488)          925,201
    Option contracts                                                   867,279        10,514,976
    Foreign currency transactions                                     (267,246)              (35)
  Net change in unrealized appreciation/depreciation on:
    Investments                                                      2,933,375        (8,800,978)
    Short positions                                                 (3,695,496)        9,418,295
    Written option contracts                                            88,045           503,950
    Foreign currency translation                                     1,168,107               (27)
                                                                  ------------     -------------
Net increase (decrease) in net assets resulting from operations     (5,124,218)        7,995,345
                                                                  ------------     -------------

FROM DISTRIBUTIONS TO SHAREHOLDERS
  Distributions from net realized gains, Class R                    (7,254,491)       (7,829,264)
  Distributions from net realized gains, Class I                    (4,670,105)       (2,300,609)
                                                                  ------------     -------------
Decrease in net assets from distributions to shareholders          (11,924,596)      (10,129,873)
                                                                  ------------     -------------
FROM CAPITAL SHARE TRANSACTIONS (NOTE 5)
CLASS R
  Proceeds from shares sold                                         43,128,832       252,248,398
  Shares issued in reinvestment of distributions                     7,011,970         7,709,210
  Proceeds from redemption fees collected (Note 1)                      25,653            77,063
  Payments for shares redeemed                                    (145,366,395)     (153,665,252)
                                                                  ------------     -------------
Net increase (decrease) in net assets from
  Class R share transactions                                       (95,199,940)      106,369,419
                                                                  ------------     -------------

CLASS I
  Proceeds from shares sold                                         54,421,439       191,327,000
  Shares issued in reinvestment of distributions                     4,413,952         2,176,251
  Proceeds from redemption fees collected (Note 1)                      10,556            18,074
  Payments for shares redeemed                                    (126,968,574)      (18,812,223)
                                                                  ------------     -------------
Net increase (decrease) in net assets from
  Class I share transactions                                       (68,122,627)      174,709,102
                                                                  ------------     -------------

TOTAL INCREASE (DECREASE) IN NET ASSETS                           (180,371,381)      278,943,993

NET ASSETS
  Beginning of year                                                408,823,202       129,879,209
                                                                  ------------     -------------
  End of year                                                     $228,451,821     $ 408,823,202
                                                                  ============     =============

Accumulated net investment loss                                   $       --       $        --
                                                                  ============     =============


See accompanying notes to financial statements.



                                                                               7




                                                   THE ARBITRAGE FUND - CLASS R
                                                        Financial Highlights
====================================================================================================================================
                                                   SELECTED PER SHARE DATA AND RATIOS FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
- ------------------------------------------------------------------------------------------------------------------------------------
                                                   YEAR              YEAR             YEAR             YEAR           PERIOD
                                                  ENDED              ENDED            ENDED            ENDED           ENDED
                                                  MAY 31,           MAY 31,           MAY 31,         MAY 31,         MAY 31,
                                                   2005              2004              2003            2002           2001(a)
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                    
Net asset value at beginning of period         $     12.52       $     12.20       $     11.19     $     11.66     $     10.00
                                               -----------       -----------       -----------     -----------     -----------

Income (loss) from investment operations:
  Net investment income (loss)                       (0.19)            (0.19)            (0.04)          (0.04)           0.22
  Net realized and unrealized gains (losses)
    on investments and foreign currencies             0.07              1.01              1.20           (0.08)           1.46
                                               -----------       -----------       -----------     -----------     -----------
Total from investment operations                     (0.12)             0.82              1.16           (0.12)           1.68
                                               -----------       -----------       -----------     -----------     -----------

Less distributions:
  From net investment income                            --                --                --              --           (0.02)
  From net realized gains                            (0.52)            (0.50)            (0.15)          (0.35)
                                               -----------       -----------       -----------     -----------     -----------
Total distributions                                  (0.52)            (0.50)            (0.15)          (0.35)          (0.02)
                                               -----------       -----------       -----------     -----------     -----------

Proceeds from redemption fees collected               0.00(b)           0.00(b)             --              --              --
                                               -----------       -----------       -----------     -----------     -----------

Net asset value at end of period               $     11.88       $     12.52       $     12.20     $     11.19     $     11.66
                                               ===========       ===========       ===========     ===========     ===========

Total return (d)                                     (1.07%)            6.66%            10.41%          (0.86%)         16.93%(c)
                                               ===========       ===========       ===========     ===========     ===========

Net assets at end of period (000's)            $   134,035       $   239,494       $   129,879     $    11,314     $     1,631
                                               ===========       ===========       ===========     ===========     ===========

Ratio of gross expenses to average
  net assets                                          2.36%             2.46%             3.00%           6.19%          51.30%(e)
Ratio of gross expenses to average net
  assets excluding dividend expense (f)               2.06%             2.01%             2.54%           5.94%             --
Ratio of net expenses to average net assets
  excluding dividend expense (f) (g)                  1.95%             1.95%             1.95%           1.94%           1.95%(e)
Ratio of net investment loss to
  average net assets:
  Before advisory fees waived and
    expenses reimbursed                              (1.27%)           (1.76%)           (1.56%)         (5.19%)        (50.05%)(e)
  After advisory fees waived and
    expenses reimbursed                              (1.16%)           (1.69%)           (0.97%)         (1.18%)         (0.70%)(e)

Portfolio turnover rate                                387%              251%              511%          2,480%          2,952%


(a)  Represents the period from the  commencement  of operations  (September 17,
     2000) through May 31, 2001.

(b)  Amount rounds to less than $0.01 per share.

(c)  Not annualized.

(d)  Total  return is a measure of the change in the value of an  investment  in
     the Fund over the periods  covered,  which assumes any dividends or capital
     gains  distributions are reinvested in shares of the Fund. Returns shown do
     not  reflect  the  deduction  of  taxes  a  shareholder  would  pay on Fund
     distributions or the redemption of Fund shares.

(e)  Annualized.

(f)  Dividend  expense  totaled  0.30%,  0.45%,  0.46% and 0.25% of average  net
     assets for the years ended May 31, 2005, 2004, 2003 and 2002, respectively.

(g)  Ratios were  determined  based on net assets after advisory fees waived and
     expenses reimbursed. See accompanying notes to financial statements.


8


                                 THE ARBITRAGE FUND - CLASS I
                                       Financial Highlights
==================================================================================================
                                                                      YEAR             YEAR
                                                                      ENDED            ENDED
                                                                      MAY 31,         MAY 31,
                                                                       2005           2004(a)
- --------------------------------------------------------------------------------------------------
                                                                             

Net asset value at beginning of period                            $      12.54     $      12.86
                                                                  ------------     ------------
Income (loss) from investment operations:
  Net investment loss                                                    (0.15)           (0.07)
  Net realized and unrealized gains on
    investments and foreign currencies                                    0.06             0.25
                                                                  ------------     ------------

Total from investment operations                                         (0.09)            0.18
                                                                  ------------     ------------
Less distributions:
  From net realized gains                                                (0.52)           (0.50)
                                                                  ------------     ------------

Proceeds from redemption fees collected                                   0.00(b)          0.00(b)
                                                                  ------------     ------------

Net asset value at end of period                                  $      11.93     $      12.54
                                                                  ============     ============

Total return (d)                                                         (0.82%)           1.35%(c)
                                                                  ============     ============

Net assets at end of period (000's)                               $     94,417     $    169,330
                                                                  ============     ============


Ratio of gross expenses to average net assets                             2.14%            2.27%(e)
Ratio of gross expenses to average net assets
  excluding dividend expense (f)                                          1.84%            1.82%(e)
Ratio of net expenses to average net assets excluding
  dividend expense (f) (g)                                                1.70%            1.70%(e)

Ratio of net investment loss to average net assets:
  Before advisory fees waived and expenses reimbursed                    (1.05%)          (1.56%)(e)
  After advisory fees waived and expenses reimbursed                     (0.91%)          (1.44%)(e)

Portfolio turnover rate                                                    387%             251%(e)


(a)  Represents  the period from the  commencement  of  operations  (October 17,
     2003) through May 31, 2004.

(b)  Amount rounds to less than $0.01 per share.

(c)  Not annualized.

(d)  Total  return is a measure of the change in the value of an  investment  in
     the Fund over the periods  covered,  which assumes any dividends or capital
     gains  distributions are reinvested in shares of the Fund. Returns shown do
     not  reflect  the  deduction  of  taxes  a  shareholder  would  pay on Fund
     distributions or the redemption of Fund shares.

(e)  Annualized.

(f)  Dividend  expense  totaled 0.30% and 0.45%(e) of average net assets for the
     periods ended May 31, 2005 and 2004, respectively.

(g)  Ratios were  determined  based on net assets after advisory fees waived and
     expenses reimbursed. See accompanying notes to financial statements.

                                                                               9


                               THE ARBITRAGE FUND
                            Portfolio of Investments
                                  May 31, 2005
- --------------------------------------------------------------------------------
   SHARES    COMMON STOCKS -- 93.75%                                  VALUE
- --------------------------------------------------------------------------------
             AEROSPACE/DEFENSE -- 2.12%
     65,000  United Defense Industries, Inc. ..................    $ 4,843,150
                                                                   -----------
             BANKS -- 1.49%
     80,000  Hibernia Corp. - Class A (b) .....................      2,572,000
     25,749  Main Street Trust, Inc. ..........................        759,607
         15  UFJ Holdings, Inc. ...............................         76,688
                                                                   -----------
                                                                     3,408,295
                                                                   -----------
             BEVERAGES -- 0.51%
     36,700  Coca-Cola Amatil Ltd. ............................        218,333
    600,000  Kingway Brewery Holdings Ltd. ....................        204,388
    229,748  Southcorp Ltd. (a) ...............................        741,729
                                                                   -----------
                                                                     1,164,450
                                                                   -----------
             BIOTECHNOLOGY -- 0.48%
    170,000  Oragenics, Inc. (a) ..............................        374,000
     21,000  Transkaryotic Therapies, Inc. (a) (c) ............        713,790
                                                                   -----------
                                                                     1,087,790
                                                                   -----------
             CHEMICALS -- 5.96%
  1,121,400  Acetex Corp. (a) .................................      7,670,376
    175,300  Great Lakes Chemical Corp. .......................      5,942,670
                                                                   -----------
                                                                    13,613,046
                                                                   -----------
             COMMERCIAL SERVICES -- 0.05%
     22,050  Transurban Group .................................        121,486
                                                                   -----------

             COMPUTERS -- 4.23%
    453,717  Creo, Inc. (a) ...................................      7,350,215
      2,000  NEC Soft Ltd. ....................................         57,509
    310,000  Nuance Communications, Inc. (a) ..................      1,460,100
     51,100  PEC Solutions, Inc. (a) ..........................        792,561
                                                                   -----------
                                                                     9,660,385
                                                                   -----------
             COSMETICS/PERSONAL CARE -- 2.29%
     90,000  Gillette Co. (The) (b) ...........................      4,746,600
     24,900  Paltac Corp. .....................................        486,333
                                                                   -----------
                                                                     5,232,933
                                                                   -----------
             DIVERSIFIED FINANCIALS -- 1.99%
     60,000  Henderson Group Plc (a) ..........................         66,843
    635,600  Instinet Group, Inc. (a) .........................      3,355,968
  1,866,956  Loring Ward International Ltd. (a) ...............      1,116,468
                                                                   -----------
                                                                     4,539,279
                                                                   -----------
             ELECTRIC -- 0.24%
     10,000  Public Service Enterprise Group, Inc. ............        555,000
                                                                   -----------


10


                               THE ARBITRAGE FUND
                      Portfolio of Investments (Continued)
                                  May 31, 2005
================================================================================
   SHARES   COMMON STOCKS -- 93.75% (Continued)                       VALUE
- --------------------------------------------------------------------------------
             ELECTRONICS -- 0.00%
          2  Vishay Intertechnology, Inc. (a) .................    $        26
                                                                   -----------

             ENTERTAINMENT -- 2.46%
    121,300  Argosy Gaming Co. (a) (b) ........................      5,624,681
                                                                   -----------

             FOOD -- 1.65%
    139,500  Foodland Associated Ltd. .........................      2,796,301
    200,000  National Foods Ltd. ..............................        966,000
                                                                   -----------
                                                                     3,762,301
                                                                   -----------
             HEALTHCARE SERVICES AND PRODUCTS -- 9.85%
    171,201  Advanced Medical Optics, Inc. (a) ................      6,610,066
    450,500  Beverly Enterprises, Inc. (a) (b) ................      5,572,685
     20,206  Closure Medical Corp. (a) ........................        544,956
    105,000  Guidant Corp. (b) ................................      7,758,450
     10,000  INAMED Corp. (a) (c) .............................        622,300
     30,000  Renal Care Group, Inc. (a) .......................      1,387,200
                                                                   -----------
                                                                    22,495,657
                                                                   -----------
             HOME FURNISHINGS -- 0.24%
     37,000  Maytag Corp. (c) .................................        539,830
                                                                   -----------

             INTERNET SERVICES -- 10.47%
    155,000  Ask Jeeves, Inc. (a) .............................      4,713,550
    472,122  DoubleClick, Inc. (a) ............................      3,885,564
    837,750  Internet Capital Group, Inc. (a) .................      4,858,950
    236,300  Macromedia, Inc. (a) (b) .........................     10,449,186
                                                                   -----------
                                                                    23,907,250
                                                                   -----------
             LEISURE TIME -- 0.15%
      3,000  Carnival Corp. ...................................        158,700
      8,205  Skis Rossignol SA ................................        191,782
                                                                   -----------
                                                                       350,482
                                                                   -----------
             LODGING -- 2.83%
    300,000  Caesars Entertainment, Inc. (a) ..................      6,465,000
                                                                   -----------

             MACHINERY -- 1.18%
      5,000  Rheinmetall AG ...................................        254,667
     61,400  Thomas Industries, Inc. ..........................      2,448,018
                                                                   -----------
                                                                     2,702,685
                                                                   -----------
             MEDIA -- 3.09%
    774,625  UnitedGlobalCom, Inc. (a) ........................      7,049,088
                                                                   -----------


                                                                              11


                               THE ARBITRAGE FUND
                      Portfolio of Investments (Continued)
                                  May 31, 2005
================================================================================
   SHARES    COMMON STOCKS -- 93.75% (Continued)                      VALUE
- --------------------------------------------------------------------------------
             METAL FABRICATED -- 1.49%
    160,207  Metals USA, Inc. (a) (b) .........................    $ 3,391,582
                                                                   -----------

             MINING -- 0.13%
     50,000  WMC Resources Ltd. ...............................        295,000
                                                                   -----------

             OFFICE AND BUSINESS EQUIPMENT -- 1.68%
  3,021,387  Danka Business Systems, Plc - ADR (a) ............      3,837,162
                                                                   -----------

             OIL AND GAS -- 5.02%
    195,000  Magnum Hunter Resources, Inc. (a) ................      3,014,700
    145,083  Mission Resources Corp. (a) (b) ..................      1,025,737
      1,842  Noble Energy, Inc. ...............................        136,990
     40,000  Premcor, Inc. (b) ................................      2,714,800
      2,835  Tel Offshore Trust ...............................         20,610
     80,000  Unocal Corp. (b) .................................      4,559,200
                                                                   -----------
                                                                    11,472,037
                                                                   -----------
             PHARMACEUTICALS -- 7.88%
    158,500  Accredo Health, Inc. (a) (b) .....................      7,103,970
    144,797  Bone Care International, Inc. (a) ................      4,740,654
     34,000  Daiichi Pharmaceutical Co., Ltd. .................        769,752
    147,700  Eon Labs, Inc. (a) (b) ...........................      4,525,528
     80,907  Orphan Medical, Inc. (a) .........................        860,851
                                                                   -----------
                                                                    18,000,755
                                                                   -----------
             PIPELINES -- 3.17%
    167,800  Kaneb Services LLC ...............................      7,232,180
                                                                   -----------

             RETAIL -- 4.35%
     38,629  Brookstone, Inc. (a) .............................        777,988
     20,000  Electronics Boutique Holdings Corp. (a) ..........      1,186,200
     10,000  Ito-Yokado Co., Ltd. .............................        342,380
    200,000  May Department Stores Co. (b) ....................      7,632,000
                                                                   -----------
                                                                     9,938,568
                                                                   -----------
             SEMICONDUCTORS -- 4.67%
    772,920  August Technology Corp. (a) (b) ..................      8,788,100
    701,019  Mindspeed Technologies, Inc. (a) .................      1,002,457
     66,000  Mykrolis Corp. (a) (b) ...........................        890,340
                                                                   -----------
                                                                    10,680,897
                                                                   -----------

12


                               THE ARBITRAGE FUND
                      Portfolio of Investments (Continued)
                                  May 31, 2005
================================================================================
   SHARES    COMMON STOCKS -- 93.75% (Continued)                      VALUE
- --------------------------------------------------------------------------------
             SOFTWARE -- 7.94%
    319,082  Concord Communications, Inc. (a) .................    $ 5,398,867
      1,100  NEC System Technologies Ltd. .....................         41,540
  1,162,799  Pinnacle Systems, Inc. (a) (b) ...................      6,872,142
    535,549  Private Business, Inc. (a) .......................        867,589
    199,250  VERITAS Software Corp. (a) .......................      4,955,348
                                                                   -----------
                                                                    18,135,486
                                                                   -----------
             TELECOMMUNICATIONS -- 5.00%
    112,500  Nextel Communications, Inc. - Class A (a) (b) ....      3,395,250
    145,000  Time Warner Telecom, Inc. - Class A (a) ..........        739,500
    180,000  Western Wireless Corp. - Class A (a) (b) .........      7,165,800
    366,100  Wireless Matrix Corp. (a) ........................        134,279
                                                                   -----------
                                                                    11,434,829
                                                                   -----------
             TRANSPORTATION -- 1.14%
     50,000  Amadeus Global Travel Distribution SA ............        451,919
     50,820  Overnite Corp. (b) ...............................      2,165,948
                                                                   -----------
                                                                     2,617,867
                                                                   -----------

             TOTAL COMMON STOCKS (Cost $204,870,712) ..........   $214,159,177
                                                                   -----------


================================================================================
   SHARES    EQUITY SWAPS -- 4.56% (Note 10)                          VALUE
- --------------------------------------------------------------------------------
    300,000  Allied Domecq Plc ................................    $ 3,789,094
     50,000  British Vita Plc .................................        325,326
     40,000  Corin Group Plc ..................................        258,800
     25,000  Cox Insurance Holdings Plc (a) ...................         42,420
     50,000  Danka Business Systems Plc (a) ...................         15,054
     25,000  East Surrey Holdings Plc .........................        241,944
    180,000  London Stock Exchange Plc ........................      1,574,688
    124,919  Mersey Docks & Harbour Co. .......................      2,194,757
    450,000  MFI Furniture Group Plc ..........................        877,561
     75,000  Singer & Friedlander Group Plc ...................        426,478
    100,000  Somerfield Plc ...................................        359,955
    500,000  Woolworths Group Plc .............................        321,225
                                                                   -----------

             TOTAL EQUITY SWAPS (Cost $11,169,464) ............    $10,427,302
                                                                   -----------


================================================================================
  SHARES     REAL ESTATE INVESTMENT TRUSTS -- 0.42%                   VALUE
- --------------------------------------------------------------------------------
     90,000  O&Y Properties Corp. (Cost $955,890) .............    $   957,302
                                                                   -----------

                                                                              13


                               THE ARBITRAGE FUND
                      Portfolio of Investments (Continued)
                                  May 31, 2005
================================================================================
   SHARES    WARRANTS -- 0.00%                                        VALUE
- --------------------------------------------------------------------------------
    170,000  Oragenics, Inc. (a) (Cost $ --) ..................    $      --
                                                                   -----------

================================================================================
   SHARES    ESCROWED RIGHTS -- 0.06%                                  VALUE
- --------------------------------------------------------------------------------
     35,300  Hoenig Group, Inc. - contingent payment rights (a)    $      --
    209,440  Information Resources, Inc. - contingent value
               rights (a)                                              146,608
    247,200  PetroCorp, Inc. - escrow shares (a) ..............           --
                                                                   -----------

             TOTAL ESCROWED RIGHTS (Cost $253,706) ............    $   146,608
                                                                   -----------

================================================================================
 CONTRACTS   CALL OPTION CONTRACTS -- 0.00%                           VALUE
- --------------------------------------------------------------------------------
             Medicis Pharmaceutical Corp. - Class A,
        100  07/18/05 at $30 (Cost $12,050) ...................    $     8,750
                                                                   -----------

================================================================================
 CONTRACTS   PUT OPTION CONTRACTS -- 0.04%                            VALUE
- --------------------------------------------------------------------------------
             Inamed Corp.,
        100  07/16/05 at $60 ..................................    $    12,000
             Johnson & Johnson,
        150  06/18/05 at $65 ..................................          2,250
             Medco Health Solutions, Inc.,
        350  06/18/05 at $50 ..................................         47,250
         50  07/16/05 at $50 ..................................         10,500
             Transkaryotic Therapies, Inc.,
        500  06/18/05 at $30 ..................................         13,750
                                                                   -----------

             TOTAL PUT OPTION CONTRACTS (Cost $109,251) .......    $    85,750
                                                                   -----------

================================================================================
   SHARES    MONEY MARKET SECURITIES -- 1.02%                         VALUE
- --------------------------------------------------------------------------------
  2,326,532  Dreyfus Treasury Prime Cash Management Fund
              (Cost $2,326,532) ...............................    $ 2,326,532
                                                                   -----------

             TOTAL INVESTMENTS AT VALUE -- 99.85%
               (Cost $219,697,605) ............................   $228,111,421
                                                                   -----------

             OTHER ASSETS IN EXCESS OF LIABILITIES -- 0.15% ...        340,400
                                                                   -----------

             NET ASSETS -- 100.00% ............................   $228,451,821
                                                                   ===========

(a)  Non-income producing security.

(b)  All or a portion of the shares have been  committed as collateral  for open
     short positions.

(c)  Underlying security for a written/purchased call/put option.

ADR - American Depository Receipt

See accompanying notes to portfolio of investments.
14


                               THE ARBITRAGE FUND
                       Schedule of Securities Sold Short
                                  May 31, 2005
================================================================================
   SHARES    COMMON STOCKS -- 35.77%                                  VALUE
- --------------------------------------------------------------------------------
             BANKS -- 0.03%
          9  Mitsubishi Tokyo Financial Group, Inc. ...........    $    75,574
                                                                   -----------

             BEVERAGES -- 0.77%
     36,700  Coca-Cola Amatil Ltd. ............................        218,333
      9,870  Pernod Ricard SA .................................      1,529,467
                                                                   -----------
                                                                     1,747,800
                                                                   -----------
             CHEMICALS -- 2.61%
    388,000  Crompton Corp. ...................................      5,955,800
                                                                   -----------

             COMMERCIAL SERVICES -- 0.05%
     22,050  Transurban Group .................................        121,486
                                                                   -----------

             COSMETICS/PERSONAL CARE -- 2.19%
     90,450  Procter & Gamble Co. (The) .......................      4,988,318
                                                                   -----------

             DIVERSIFIED FINANCIALS -- 0.60%
     18,100  Capital One Financial Corp. ......................      1,364,740
                                                                   -----------

             ELECTRIC -- 0.25%
     12,250  Exelon Corp. .....................................        573,913
                                                                   -----------

             ELECTRONICS -- 0.04%
     18,000  NEC Corp. (a) ....................................        100,710
                                                                   -----------

             FOOD -- 0.63%
    246,000  Metcash Ltd. .....................................        699,118
     60,000  Woolworths Ltd. ..................................        730,720
                                                                   -----------
                                                                     1,429,838
                                                                   -----------
             HEALTHCARE SERVICES AND PRODUCTS -- 4.89%
    165,800  Advanced Medical Optics, Inc. (a) ................      6,401,538
     71,200  Johnson & Johnson (b) ............................      4,777,520
                                                                   -----------
                                                                    11,179,058
                                                                   -----------
             INTERNET SERVICES -- 3.31%
    191,028  IAC/InterActiveCorp (a) (b) ......................      4,680,186
    127,735  Symantec Corp. (a) (b) ...........................      2,888,088
                                                                   -----------
                                                                     7,568,274
                                                                   -----------
             LODGING -- 2.09%
     66,600  Harrah's Entertainment, Inc. .....................      4,782,546
                                                                   -----------

             MEDIA -- 1.95%
    106,094  Liberty Media International, Inc. (a) ............      4,446,400
                                                                   -----------



                                                                              15


                               THE ARBITRAGE FUND
                 Schedule of Securities Sold Short (Continued)
                                  May 31, 2005
================================================================================
   SHARES    COMMON STOCKS -- 35.77% (Continued)                      VALUE
- --------------------------------------------------------------------------------
             OIL AND GAS -- 2.19%
     81,000  Cimarex Energy Co. (a) ...........................    $ 3,048,030
     66,833  Petrohawk Energy Corp. (a) .......................        584,121
     20,000  Valero Energy Corp. ..............................      1,372,400
                                                                   -----------
                                                                     5,004,551
                                                                   -----------
             PHARMACEUTICALS -- 1.56%
     45,000  Medco Health Solutions, Inc. (a) (b) .............      2,250,000
     38,000  MEDICEO Holdings Co., Ltd. .......................        511,603
     39,500  Sankyo Co., Ltd. .................................        811,807
                                                                   -----------
                                                                     3,573,410
                                                                   -----------
             RETAIL -- 2.19%
     62,300  Federated Department Stores, Inc. ................      4,202,135
     15,700  GameStop Corp. - Class A (a) .....................        457,812
     12,000  Seven-Eleven Japan Co., Ltd. .....................        341,823
                                                                   -----------
                                                                     5,001,770
                                                                   -----------
             SOFTWARE -- 6.48%
    326,214  Adobe Systems, Inc. ..............................     10,784,635
     54,530  Avid Technology, Inc. (a) (b) ....................      3,197,639
    199,900  ScanSoft, Inc. (a) ...............................        811,594
                                                                   -----------
                                                                    14,793,868
                                                                   -----------
             TELECOMMUNICATIONS -- 3.94%
     96,150  ALLTEL Corp. .....................................      5,593,046
    143,800  Sprint Corp. .....................................      3,406,622
                                                                   -----------
                                                                     8,999,668
                                                                   -----------
             TRANSPORTATION -- 0.00%
         68  Yellow Roadway Corp. (a) .........................          3,585
                                                                   -----------

             TOTAL COMMON STOCKS (Proceeds $78,314,181)........    $81,711,309
                                                                   -----------


================================================================================
   SHARES    PREFERRED STOCKS -- 0.11%                                VALUE
- --------------------------------------------------------------------------------
      5,000  Rheinmetall AG (Proceeds $277,103) ...............    $   254,667
                                                                   -----------

================================================================================
   SHARES    EQUITY SWAPS -- 0.07% (Note 10)                          VALUE
- --------------------------------------------------------------------------------
      3,000  Carnival Plc (Proceeds $177,745) .................    $   164,303
                                                                   -----------

             TOTAL SECURITIES SOLD SHORT -- 35.95%
               (Proceeds $78,769,029) .........................    $82,130,279
                                                                   ===========

(a)  Non-income producing security.

(b)  Underlying security for a written/purchased call/put option.

 See accompanying notes to portfolio of investments.

16


                               THE ARBITRAGE FUND
                        Schedule of Open Options Written
                                  May 31, 2005
================================================================================
 CONTRACTS   WRITTEN CALL OPTIONS                                     VALUE
- --------------------------------------------------------------------------------
             Avid Technology, Inc.,
        215    06/18/05 at $50 ................................    $   189,200
        250    06/18/05 at $55 ................................        103,750
             ChevronTexaco Corp.,
        618    06/18/05 at $55 ................................         66,435
             IAC/InterActiveCorp,
         63    06/18/05 at $22.5 ..............................         12,915
             Inamed Corp.,
        100    07/16/05 at $65 ................................         11,000
             Johnson & Johnson,
        150    06/18/05 at $70 ................................          1,500
             Medco Health Solutions, Inc.,
        100    06/18/05 at $55 ................................            750
        300    06/18/05 at $60 ................................            750
        200    07/16/05 at $55 ................................         11,500
         50    07/16/05 at $60 ................................            500
             Medicis Pharmaceutical Corp.,
         50    07/16/05 at $25 ................................         18,250
             Maytag Corp.,
        370    06/18/05 at $15 ................................          9,250
             Symantec Corp.,
        559    06/18/05 at $20 ................................        145,340
        630    06/18/05 at $22.5 ..............................         34,650
             Transkaryotic Therapies, Inc.,
         75    06/18/05 at $35 ................................          2,812
                                                                   -----------

             TOTAL WRITTEN CALL OPTIONS (Premiums Received
               $463,871) ......................................    $   608,602
                                                                   -----------

             TOTAL OPEN OPTIONS WRITTEN (Premiums Received
               $463,871) ......................................    $   608,602
                                                                   ===========

See accompanying notes to financial statements.

                                                                              17


                               THE ARBITRAGE FUND
                       Notes to the Financial Statements
                                  May 31, 2005
================================================================================

1.   ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

The Arbitrage Funds (the "Trust") was organized as a Delaware  business trust on
December 22, 1999 and is registered under the Investment Company Act of 1940, as
amended (the "1940 Act"), as an open-end  management  investment company issuing
its shares in series, each series representing a distinct portfolio with its own
investment  objective and policies.  The one series presently  authorized is The
Arbitrage Fund (the "Fund"), a diversified  series,  which offers two classes of
shares.  Class R shares and Class I shares commenced operations on September 17,
2000 and October 17, 2003, respectively.

The investment objective of the Fund is to achieve capital growth by engaging in
merger arbitrage.

The Fund's two classes of shares,  Class R and Class I,  represent  interests in
the same portfolio of investments and have the same rights, but differ primarily
in the  expenses  to  which  they are  subject  and the  investment  eligibility
requirements.  Class R shares are subject to an annual distribution fee of up to
..25% of the Fund's average daily net assets allocable to Class R shares, whereas
Class I shares are not subject to any distribution fees.

The following is a summary of the Fund's significant accounting policies:

SECURITIES  VALUATION  - The Fund's  portfolio  securities  are valued as of the
close of business of the regular session of the New York Stock Exchange ("NYSE")
(normally  4:00  p.m.,  Eastern  time).  Common  stocks  and  other  securities,
including  open short  positions,  that are traded on a securities  exchange are
valued at the last quoted sales price at the close of regular trading on the day
the valuation is made.  Securities  which are quoted by NASDAQ are valued at the
NASDAQ Official Closing Price.  Price information on listed stocks is taken from
the exchange where the security is primarily traded. Securities which are listed
on an exchange but which are not traded on the valuation  date are valued at the
mean  of the  most  recent  bid  and  asked  prices.  Securities  traded  in the
over-the-counter  market,  and which are not quoted by NASDAQ, are valued at the
mean of the  most  recent  bid  and  asked  prices.  Put and  call  options  and
securities traded in the  over-the-counter  market are valued at the mean of the
most  recent  bid  and  asked  prices.  Unlisted  securities  for  which  market
quotations  are  readily  available  are valued at the latest  quoted bid price.
Other assets and securities  for which no quotations  are readily  available are
valued at fair value as  determined in good faith under the  supervision  of the
Board of Trustees of the Trust. Such methods of fair valuation may include,  but
are not limited to: multiple of earnings,  multiple of book value, discount from
market  of a similar  freely  traded  security,  purchase  price of a  security,
subsequent  private  transactions  in the security or related  securities,  or a
combination of these and other factors.  Foreign  securities are translated from
the local currency into U.S. dollars using currency exchange rates supplied by a
quotation service.


18


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================
REPURCHASE  AGREEMENTS  - The Fund may enter  into  repurchase  agreements  with
certain banks or non-bank dealers.  The adviser to the Fund will monitor,  on an
ongoing basis,  the value of the underlying  securities to ensure that the value
always equals or exceeds the repurchase price plus accrued interest.

SHARE  VALUATION  - The net asset value per share of each class of shares of the
Fund is  calculated  daily by  dividing  the total  value of the  Fund's  assets
attributable to that class, less liabilities  attributable to that class, by the
number of shares of that class  outstanding.  The offering  price and redemption
price  per share of each  class of the Fund is equal to the net asset  value per
share,  except that,  shares of each class are subject to a redemption fee of 2%
if redeemed  within 90 days of the date of purchase.  For the year ended May 31,
2005, proceeds from redemption fees were $25,653 in Class R and $10,556 in Class
I.

INVESTMENT  INCOME - Interest  income is accrued as earned.  Dividend  income is
recorded on the ex-dividend date.

DISTRIBUTIONS TO SHAREHOLDERS - Dividends arising from net investment income and
net capital gain distributions,  if any, are declared and paid at least annually
to  shareholders  of the Fund. The amount of  distributions  from net investment
income and net realized gains are  determined in accordance  with federal income
tax regulations which may differ from accounting  principles  generally accepted
in the  United  States of  America.  These  "book/tax"  differences  are  either
temporary or permanent in nature and are primarily due to losses deferred due to
wash sales.

The tax character of distributions  paid during the years ended May 31, 2005 and
May 31, 2004 was as follows:

- --------------------------------------------------------------------------------
          Year          Ordinary         Long-Term          Total
          Ended          Income         Capital Gains    Distributions
- --------------------------------------------------------------------------------
         5/31/05      $ 10,778,315      $ 1,146,281      $ 11,924,596
         5/31/04      $ 10,129,873      $       --       $ 10,129,873
- --------------------------------------------------------------------------------

ALLOCATION  BETWEEN CLASSES - Investment  income earned,  realized capital gains
and losses, and unrealized  appreciation and depreciation are allocated daily to
each class of shares based upon its proportionate  shares of total net assets of
the Fund.  Class specific  expenses are charged  directly to the class incurring
the expense.  Common expenses which are not attributable to a specific class are
allocated  daily to each class of shares based upon its  proportionate  share of
total net assets of the Fund.

SECURITY  TRANSACTIONS - Security  transactions are accounted for on trade date.
Gains and losses on securities sold are determined on a specific  identification
basis.

SHORT  POSITIONS  - The Fund may sell  securities  short  for  economic  hedging
purposes.  For financial statement  purposes,  an amount equal to the settlement
amount is included in the Statement of Assets and Liabilities as an asset and an
equivalent  liability.  The amount of

                                                                              19


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================
the liability is subsequently  marked-to-market  to reflect the current value of
the short position.  Subsequent  fluctuations in the market prices of securities
sold,  but not yet  purchased,  may require  purchasing the securities at prices
which may differ from the market value  reflected on the Statement of Assets and
Liabilities.  The Fund is liable for any dividends  payable on securities  while
those securities are in a short position. As collateral for its short positions,
the Fund is required under the 1940 Act to maintain  assets  consisting of cash,
cash equivalents or liquid securities.  The amount of the collateral is required
to be  adjusted  daily to reflect  changes in the value of the  securities  sold
short.

OPTION  TRANSACTIONS  - The Fund may write (sell)  covered call options to hedge
portfolio investments.  Put options may also be written by the Fund as part of a
merger arbitrage strategy involving a pending corporate reorganization. When the
Fund writes  (sells) an option,  an amount equal to the premium  received by the
Fund is included in the Statement of Assets and  Liabilities  as an asset and an
equivalent   liability.   The   amount   of  the   liability   is   subsequently
marked-to-market  to reflect the current value of the option written. By writing
an  option,  the Fund may  become  obligated  during  the term of the  option to
deliver or purchase the  securities  underlying the option at the exercise price
if the option is  exercised.  Option  contracts are valued at the average of the
current bid and asked price  reported  on the day of  valuation.  When an option
expires on its  stipulated  expiration  date or the Fund  enters  into a closing
purchase  transaction,  the  Fund  realizes  a gain or  loss if the  cost of the
closing purchase  transaction  differs from the premium received when the option
was  sold  without  regard  to any  unrealized  gain or  loss on the  underlying
security, and the liability related to such option is eliminated. When an option
is exercised,  the premium  originally  received decreases the cost basis of the
security (or increases the proceeds on a sale of the security).

ESTIMATES  -  The  preparation  of  financial   statements  in  conformity  with
accounting  principles  generally  accepted  in the  United  States  of  America
requires  management to make estimates and assumptions  that affect the reported
amounts of assets and  liabilities  at the date of the financial  statements and
the reported amounts of income and expenses during the reporting period.  Actual
results could differ from those estimates.

FEDERAL  INCOME  TAX - It is the  Fund's  policy  to  comply  with  the  special
provisions of Subchapter M of the Internal  Revenue Code applicable to regulated
investment companies. As provided therein, in any fiscal year in which a Fund so
qualifies and distributes at least 90% of its taxable net income,  the Fund (but
not the  shareholders)  will be  relieved  of  federal  income tax on the income
distributed. Accordingly, no provision for income taxes has been made.

In  order  to  avoid  imposition  of the  excise  tax  applicable  to  regulated
investment companies, it is also the Fund's intention to declare as dividends in
each calendar year at least 98% of its net investment  income (earned during the
calendar  year) and 98% of its net realized  capital  gains  (earned  during the
twelve months ended October 31) plus undistributed amounts from prior years.


20


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================
The following information is computed on a tax basis for each item as of May 31,
2005:

- --------------------------------------------------------------------------------
Cost of portfolio investments (including securities
  sold short and written options)                                $ 154,448,818
                                                                 =============

Gross unrealized appreciation                                    $  11,070,303
Gross unrealized depreciation                                      (20,146,581)
                                                                 -------------
Net unrealized depreciation                                         (9,076,278)
Net unrealized appreciation on translation of assets
  and liabilities in foreign currencies                              1,168,080
Capital loss carryforward                                           (1,501,804)
                                                                 -------------
Total accumulated deficit                                        $  (9,410,002)
                                                                 =============
- --------------------------------------------------------------------------------

The difference between the federal income tax cost of portfolio  investments and
the financial statement cost is due to the tax deferral of losses on wash sales.

As of May 31, 2005,  the Fund had a capital  loss  carryforward  of  $1,501,804,
which  expires May 31, 2013.  The capital loss  carryforward  may be utilized in
future years to offset net realized capital gains, if any, prior to distributing
such  gains  to  shareholders.

For the year ended May 31, 2005, the Fund  reclassified net investment losses of
$3,340,794  and losses on foreign  currency  transactions  of  $267,246  against
paid-in   capital   on  the   Statement   of  Assets   and   Liabilities.   Such
reclassification,   the  result  of  permanent   differences  between  financial
statement and income tax reporting requirements, has no effect on the Fund's net
assets or net asset value per share.

2. INVESTMENT TRANSACTIONS

During the year ended May 31, 2005,  cost of purchases  and proceeds  from sales
and maturities of investment securities, other than short-term investments, U.S.
government securities,  options and short positions,  amounted to $1,189,901,427
and $1,200,277,977, respectively.

3. TRANSACTIONS WITH AFFILIATES

INVESTMENT ADVISORY AGREEMENT

The Fund's investments are managed by Water Island Capital,  LLC (the "Adviser")
under the  terms of an  Investment  Advisory  Agreement.  Under  the  Investment
Advisory  Agreement,  the Fund pays the  Adviser a fee,  which is  computed  and
accrued  daily  and paid  monthly,  at the  annual  rate of 1.50% of the  Fund's
average daily net assets.

Until  August  31,  2012,  the  Adviser  has  contractually  agreed to waive its
advisory fee and/or reimburse the Fund's other expenses to the extent that total
operating expenses (exclusive of interest,  taxes, dividends on short positions,
brokerage  commissions  and other costs incurred in connection with the purchase
or sale of portfolio  securities)  exceed the annual rate of 1.95% of the Fund's
average  daily net  assets  allocable  to Class R shares and 1.70% of the Fund's
average daily net assets allocable to Class I shares. Accordingly,  for the year
ended  May 31,  2005,  the  Adviser  waived  $267,326  of its  advisory  fee and
reimbursed  the Fund for  $57,996  and  $72,373 of Class R and Class I expenses,
respectively.

                                                                              21


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================
The Adviser is permitted to recoup fees waived or expenses  reimbursed after May
31, 2004 to the extent  actual fees and  expenses for a period are less than the
expense limitation cap of each class, provided,  however, that the Adviser shall
only be entitled to recoup such amounts for a period of three years from the end
of the fiscal year during  which such amount was waived or  reimbursed.

Certain  officers  of the  Trust are also  officers  of the  Adviser.  Effective
October 1, 2004, the Vice President of the Trust also serves as Chief Compliance
Officer  ("CCO")  of the Trust  and of the  Adviser.  The Fund pays the  Adviser
$30,000 annually for providing CCO services.

ADMINISTRATION AGREEMENT
Under the terms of an  Administration  Agreement,  Ultimus Fund  Solutions,  LLC
("Ultimus")  supplies  executive,  administrative and regulatory services to the
Fund, supervises the preparation of tax returns, and coordinates the preparation
of reports to  shareholders  and reports to and filings with the  Securities and
Exchange  Commission and state  securities  authorities.  For the performance of
these administrative services,  Ultimus receives a monthly fee at an annual rate
of .15% of the Fund's average daily net assets up to $50 million;  .125% of such
assets from $50 million to $100  million;  .10% of such assets from $100 million
to $250  million;  .075% of such assets from $250 to $500  million;  and .05% of
such  assets in excess of $500  million,  subject to a minimum fee of $2,000 per
month.  For the year ended May 31,  2005,  Ultimus was paid  $337,051  under the
administration  agreement.  Certain  officers of the Trust are also  officers of
Ultimus.

TRANSFER AGENT AND SHAREHOLDER SERVICES AGREEMENT
Under the terms of a Transfer Agent and Shareholder  Services  Agreement between
the Trust and  Ultimus,  Ultimus  maintains  the  records of each  shareholder's
account,  answers shareholders'  inquiries concerning their accounts,  processes
purchases  and  redemptions  of Fund shares,  acts as dividend and  distribution
disbursing agent and performs other  shareholder  service  functions.  For these
services,  Ultimus receives from the Fund a monthly fee at an annual rate of $20
per  account,  subject  to a minimum  fee of $1,500  per month for each class of
shares.  For the year ended May 31,  2005,  Ultimus was paid  $48,708  under the
transfer agent  agreement.  In addition,  the Fund pays  out-of-pocket  expenses
including, but not limited to, postage and supplies.

For shareholder accounts held through financial intermediaries,  Class I may, in
some cases,  compensate these  intermediaries for providing account  maintenance
services to their  customers at an annual rate of not more than $20 per account.
For  the  year  ended  May  31,   2005,   Class  I  paid  $33,140  to  financial
intermediaries for account maintenance services.


22


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================

FUND ACCOUNTING AGREEMENT
Under the terms of a Fund  Accounting  Agreement  between the Trust and Ultimus,
Ultimus  calculates  the  daily net asset  value  per  share and  maintains  the
financial  books and records of the Fund. For these services,  Ultimus  receives
from the Fund a monthly fee of $3,500,  plus an asset based fee equal to .01% of
the Fund's  average daily net assets up to $500 million and .005% of such assets
in excess of $500 million. Additionally, on a monthly basis, Ultimus receives $5
per trade for accounting for portfolio trades in excess of two hundred.  For the
year ended May 31, 2005,  Ultimus was paid  $111,839  under the fund  accounting
agreement.  In addition,  the Fund  reimburses  certain  out-of-pocket  expenses
incurred by Ultimus in obtaining valuations of the Fund's portfolio securities.

DISTRIBUTION AGREEMENT
Under the terms of a Distribution  Agreement  between the Trust and Ultimus Fund
Distributors,  LLC (the  "Distributor"),  the  Distributor  serves as  principal
underwriter  and  national  distributor  for the shares of the Fund.  The Fund's
shares are sold on a no-load basis and, therefore,  the Distributor  receives no
sales  commissions  or sales  loads for  providing  services  to the  Fund.  The
Distributor is an affiliate of Ultimus.

DISTRIBUTION PLAN
The Fund has  adopted a plan of  distribution  pursuant  to Rule 12b-1 under the
1940 Act (the  "Plan")  for Class R  shares,  which  permits  Class R to pay for
expenses incurred in the distribution and promotion of Class R shares. Under the
Plan,  Class  R  may  pay  compensation  to  any  broker-dealer  with  whom  the
Distributor  or the  Fund,  on  behalf of Class R  shares,  has  entered  into a
contract  to  distribute  Class R shares,  or to any other  qualified  financial
services firm, for distribution and/or shareholder-related services with respect
to shares held or purchased by their respective customers in connection with the
purchase of shares  attributable to their efforts.  The amount of payments under
the Plan in any year shall not exceed .25%  annually  of the  average  daily net
assets allocable to Class R shares. During the year ended May 31, 2005, the Fund
paid Class R distribution expenses of $463,237 pursuant to the Plan.

4. OPTIONS CONTRACTS

A summary of option  contracts  written during the year ended May 31, 2005 is as
follows:
- --------------------------------------------------------------------------------
         OPTION   OPTION
                                                   CONTRACTS         PREMIUMS
- --------------------------------------------------------------------------------
Options outstanding at beginning of year                33,495     $  2,457,627
Options written                                        148,108       15,104,306
Options canceled in a closing purchase transaction     (23,538)      (1,950,103)
Options exercised                                      (73,513)      (8,689,223)
Options expired                                        (80,822)      (6,458,736)
                                                   ------------    ------------
Options outstanding at end of year                       3,730     $    463,871
                                                   ============    ============
- --------------------------------------------------------------------------------

                                                                              23


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================

5. CAPITAL SHARE TRANSACTIONS

Proceeds and payments on capital  shares as shown in the Statement of Changes in
Net Assets are the result of the following  capital  transactions  for the years
shown:
- --------------------------------------------------------------------------------
                                                       Year             Year
                                                       Ended            Ended
                                                       May 31,          May 31,
                                                        2005             2004
- --------------------------------------------------------------------------------
CLASS R
Shares sold                                           3,553,278      19,944,187
Shares issued in reinvestment of distributions          572,406         607,024
Shares redeemed                                     (11,968,047)    (12,071,428)
                                                    -----------     -----------
Net increase (decrease) in shares outstanding        (7,842,363)      8,479,783
Shares outstanding at beginning of year              19,124,744      10,644,961
                                                    -----------     -----------
Shares outstanding at end of year                    11,282,381      19,124,744
                                                    ===========     ===========

CLASS I
Shares sold                                           4,445,038      14,818,551
Shares issued in reinvestment of distributions          359,150         171,224
Shares redeemed                                     (10,390,377)     (1,489,330)
                                                    -----------     -----------
Net increase (decrease) in shares outstanding        (5,586,189)     13,500,445
Shares outstanding at beginning of year              13,500,445             --
                                                    -----------     -----------
Shares outstanding at end of year                     7,914,256      13,500,445
                                                    ===========     ===========
- --------------------------------------------------------------------------------

24


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================

6. FOREIGN CURRENCY TRANSLATION

Amounts  denominated  in  or  expected  to  settle  in  foreign  currencies  are
translated to U.S. dollars based on exchange rates on the following basis:

A. The market values of investment  securities and other assets and  liabilities
are translated at the closing rate of exchange each day.

B.  Purchases  and sales of  investment  securities  and income and expenses are
translated at the rate of exchange  prevailing on the  respective  dates of such
transactions.

C. The Fund does not isolate that portion of the results of operations caused by
changes in foreign  exchange rates on investment from those caused by changes in
market prices of securities  held. Such  fluctuations  are included with the net
realized and unrealized gains or losses on investments.

Reported net realized  foreign  exchange gains or losses arise from 1) purchases
and sales of foreign  currencies,  2) currency gains or losses realized  between
the trade and settlement dates on securities  transactions and 3) the difference
between  the  amounts of  dividends,  interest  and  foreign  withholding  taxes
recorded on the Fund's  books,  and the U.S.  dollar  equivalent  of the amounts
actually  received or paid.  Reported net unrealized  foreign exchange gains and
losses  arise from  changes in the value of assets and  liabilities,  other than
investment securities, resulting from changes in exchange rates.

7. CONTINGENCIES AND COMMITMENTS

The Fund indemnifies the Trust's  officers and trustees for certain  liabilities
that  might  arise  from  their   performance  of  their  duties  to  the  Fund.
Additionally,  in the normal  course of business the Fund enters into  contracts
that  contain a variety of  representations  and  warranties  and which  provide
general  indemnifications.  The Fund's maximum exposure under these arrangements
is unknown,  as this would  involve  future  claims that may be made against the
Fund that have not yet occurred.  However, based on experience, the Fund expects
the risk of loss to be remote.







                                                                              25


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================

8. SECURITIES LENDING

In order to generate  additional  income,  the Fund may, from time to time, lend
its portfolio securities to broker-dealers,  banks or institutional borrowers of
securities.  The Fund must receive 100%  collateral  in the form of cash or U.S.
government  securities.  This  collateral  must be valued daily and,  should the
market  value of the loaned  securities  increase,  the  borrower  must  furnish
additional  collateral to the Fund. During the time portfolio  securities are on
loan,  the  borrower  pays the  Fund  any  dividends  or  interest  paid on such
securities.  Loans are subject to termination by the Fund or the borrower at any
time.  While the Fund does not have the right to vote securities on loan, it has
the  right  to  terminate  the  loan  and  regain  the  right to vote if that is
considered  important with respect to the investment.  In the event the borrower
defaults in its  obligation to the Fund, the Fund bears the risk of delay in the
recovery  of its  portfolio  securities  and the risk of loss of  rights  in the
collateral. The Fund will only enter into loan arrangements with broker-dealers,
banks or other  institutions  which the Adviser has determined are  creditworthy
under guidelines  established by the Trustees.  There were no securities on loan
as of May 31, 2005.

During the year ended May 31, 2005, the Fund earned $1,358 in securities lending
income.

9. FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS

The Fund enters into forward  foreign  currency  exchange  contracts as a way of
managing foreign exchange rate risk. The Fund may enter into these contracts for
the purchase or sale of a specific foreign currency at a fixed price on a future
date as a hedge or cross-hedge against either specific transactions or portfolio
positions.  The objective of the Fund's foreign currency hedging transactions is
to reduce risk that the U.S. dollar value of the Fund's  securities  denominated
in foreign  currency  will  decline in value due to changes in foreign  currency
exchange rates. All foreign currency exchange  contracts are "marked-to  market"
daily at the  applicable  translation  rates  resulting in  unrealized  gains or
losses.  Risks may arise upon entering into these  contracts  from the potential
inability  of  counterparties  to meet the  terms of  their  contracts  and from
unanticipated  movements in the value of a foreign currency relative to the U.S.
dollar.



26


                               THE ARBITRAGE FUND
                 Notes to the Financial Statements (Continued)
                                  May 31, 2005
================================================================================
As of May 31, 2005, the Fund had forward  foreign  currency  exchange  contracts
outstanding as follows:


- ---------------------------------------------------------------------------------------
                                                                         NET UNREALIZED
                          TO RECEIVE                                      APPRECIATION
   SETTLEMENT DATE       (TO DELIVER)     INITIAL VALUE    MARKET VAL    (DEPRECIATION)
- ---------------------------------------------------------------------------------------
                                                              
Contracts to Sell
  06/01/05 .........      (622,138) AUD   $    473,384    $    471,488    $      1,896
  06/02/05 .........      (624,875) AUD        476,777         473,562           3,215
  06/09/05 .........    (7,500,000) AUD      5,889,000       5,679,477         209,523
  06/29/05 .........   (15,000,000) CAD     12,283,202      11,968,872         314,330
  06/09/05 .........    (1,500,000) EUR      1,986,450       1,852,566         133,884
  07/27/05 .........      (310,000) EUR        403,527         383,395          20,132
  06/08/05 .........    (6,500,000) GBP     12,436,450      11,841,440         595,010
  06/30/05 .........       (93,890) GBP        177,745         171,120           6,625
  07/27/05 .........    (1,430,000) GBP      2,715,251       2,599,391         115,860
  08/08/05 .........    (1,280,000) HKD        164,770         164,527             243
                                          ------------    ------------    ------------
Total Sell Contracts                      $ 37,006,556    $ 35,605,838    $  1,400,718
                                          ------------    ------------    ------------

Contracts to Buy
  06/01/05 .........      1,043,584 AUD   $   (794,064)   $   (790,882)   $     (3,182)
  06/02/05 .........      1,052,516 AUD       (803,072)       (797,651)         (5,421)
  06/09/05 .........      4,000,000 AUD     (3,088,400)     (3,029,054)        (59,346)
  06/29/05 .........      3,800,000 CAD     (3,024,755)     (3,032,114)          7,359
  06/09/05 .........      1,000,000 EUR     (1,292,580)     (1,235,044)        (57,536)
  06/01/05 .........        174,046 GBP       (316,851)       (317,209)            358
  06/03/05 .........        173,670 GBP       (316,618)       (316,472)           (146)
  06/08/05 .........      1,750,000 GBP     (3,295,850)     (3,188,080)       (107,770)
                                          ------------    ------------    ------------
Total Buy Contracts                       $(12,932,190)   $(12,706,506)   $   (225,684)
                                          ------------    ------------    ------------
Net Contracts ......                      $ 24,074,366    $ 22,899,332    $  1,175,034
                                          ============    ============    ============
- ---------------------------------------------------------------------------------------
AUD - Australian Dollar    CAD - Canadian Dollar     EUR - Euro Dollar
GBP - British Pound Sterling        HKD - Hong Kong Dollar
- ---------------------------------------------------------------------------------------


10. EQUITY SWAP CONTRACTS

The Fund has entered  into equity swap  contracts.  An equity swap  provides the
Fund with exposure to any appreciation or depreciation as well as dividends on a
security from a counterparty  to the contract.  Fluctuations  in the value of an
open contract are recorded daily as a net unrealized gain or loss. The Fund will
realize a gain or loss upon termination or reset of the contract.  Either party,
under certain  conditions,  may terminate the contract  prior to the  contract's
expiration  date.  As of May 31,  2005,  the Fund had long and short equity swap
contracts outstanding of $10,427,302 and $164,303, respectively.

11. NEW SERVICE AGREEMENTS

Effective July 25, 2005,  administrative  services and fund accounting  services
are being  provided by SEI  Investments,  Inc. and transfer  agent  services are
being  provided by DST  Systems,  Inc.  Additionally,  effective  July 25, 2005,
distribution services are being provided by SEI Investments Distribution Co.


                                                                              27


                               THE ARBITRAGE FUND
            Report of Independent Registered Public Accounting Firm
================================================================================


To the Board of Trustees and Shareholders
The Arbitrage Fund

We have  audited the  accompanying  statement of assets and  liabilities  of The
Arbitrage Fund (the "Fund"), including the schedule of investments as of May 31,
2005,  and the related  statement  of  operations  for the year then ended,  the
statement  of changes in net assets for each of the two years in the period then
ended,  and the  financial  highlights  for each of the four years in the period
then  ended.  These  financial  statements  and  financial  highlights  are  the
responsibility  of the Fund's  management.  Our  responsibility is to express an
opinion on these  financial  statements  and financial  highlights  based on our
audits. The financial highlights for the period September 17, 2000 (commencement
of operations)  through May 31, 2001 have been audited by other auditors,  whose
report dated July 10, 2001  expressed an  unqualified  opinion on such financial
highlights.

We conducted our audits in accordance  with the standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements and financial highlights are free of material misstatement.  An audit
includes  examining,  on a test  basis,  evidence  supporting  the  amounts  and
disclosures in the financial statements. Our procedures included confirmation of
securities  owned as of May 31, 2005 by  correspondence  with the  custodian and
brokers.  An audit also includes  assessing the accounting  principles  used and
significant  estimates  made by  management,  as well as evaluating  the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for our opinion.

In our opinion,  the financial  statements and financial  highlights referred to
above present fairly, in all material  respects,  the financial  position of The
Arbitrage  Fund as of May 31, 2005,  the results of its  operations for the year
then  ended,  the  changes  in its net  assets  for each of the two years in the
period then ended,  and the financial  highlights  for each of the four years in
the period  then ended,  in  conformity  with  accounting  principles  generally
accepted in the United States of America.

                                                     TAIT, WELLER & BAKER

Philadelphia, Pennsylvania
June 29, 2005



28


                               THE ARBITRAGE FUND
                     About Your Fund's Expenses (Unaudited)
================================================================================

We believe it is  important  for you to  understand  the impact of costs on your
investment.  As a  shareholder  of the Fund,  you incur two types of costs:  (1)
transaction costs,  including redemption fees; and (2) ongoing costs,  including
management  fees,  distribution  (12b-1)  fees,  and other  Fund  expenses.  The
following  examples are intended to help you  understand  your ongoing costs (in
dollars) of  investing  in the Fund and to compare  these costs with the ongoing
costs of investing in other mutual funds.

A fund's expenses are expressed as a percentage of its average net assets.  This
figure is known as the expense  ratio.  The  following  examples are intended to
help you  understand the ongoing costs (in dollars) of investing in the Fund and
to compare  these  costs with the ongoing  costs of  investing  in other  mutual
funds.  The  examples  below are based on an  investment  of $1,000  made at the
beginning of the period shown and held for the entire period.

The table below illustrates the Fund's costs in two ways:

ACTUAL FUND RETURN - This section helps you to estimate the actual expenses that
you paid over the period.  The "Ending  Account Value" shown is derived from the
Fund's actual return,  and the third column shows the dollar amount of operating
expenses that would have been paid by an investor who started with $1,000 in the
Fund. You may use the information  here,  together with the amount you invested,
to estimate the expenses that you paid over the period.

To do so, simply  divide your account  value by $1,000 (for  example,  an $8,600
account value  divided by $1,000 = 8.6),  then multiply the result by the number
given for the Fund under the heading "Expenses Paid During Period."

HYPOTHETICAL 5% RETURN - This section is intended to help you compare the Fund's
costs with those of other mutual  funds.  It assumes that the Fund had an annual
return of 5% before expenses during the period shown, but that the expense ratio
is  unchanged.  In this case,  because the return used is not the Fund's  actual
returns,  the results do not apply to your investment.  The example is useful in
making comparisons  because the Securities and Exchange  Commission requires all
mutual  funds to  calculate  expenses  based on a 5% return.  You can assess the
Fund's  costs by  comparing  this  hypothetical  example  with the  hypothetical
examples that appear in shareholder reports of other funds.

Note  that  expenses  shown in the table  are  meant to  highlight  and help you
compare  ongoing  costs only.  The Fund does not charge a front-end  sales load.
However,  a redemption fee of 2% is applied on the sale of shares held within 90
days of the date of  purchase  and does not  apply to the  redemption  of shares
acquired  through  reinvestment  of  dividends  and  other  distributions.

The  calculations  assume no shares were bought or sold during the period.  Your
actual  costs may have been  higher or lower,  depending  on the  amount of your
investment and the timing of any purchases or redemptions.

More  information  about the Fund's  expenses,  including  annual expense ratios
since  inception,  can be found in this report.  For  additional  information on
operating  expenses  and other  shareholder  costs,  please  refer to the Fund's
prospectus.

                                                                              29


                               THE ARBITRAGE FUND
               About Your Fund's Expenses (Unaudited) (Continued)
================================================================================

THE ARBITRAGE FUND - CLASS R
- --------------------------------------------------------------------------------
                                   BEGINNING         ENDING
                                 ACCOUNT VALUE    ACCOUNT VALUE   EXPENSES PAID
                                DECEMBER 1, 2004  MAY 31, 2005    DURING PERIOD*
- --------------------------------------------------------------------------------
Based on Actual Fund Return       $ 1,000.00       $   992.50     $    11.08
Based on Hypothetical 5% Return
 (before expenses)                $ 1,000.00       $ 1,013.81     $    11.20
- --------------------------------------------------------------------------------

*    Expenses are equal to the Arbitrage Fund - Class R annualized expense ratio
     of 2.23% for the period,  multiplied by the average  account value over the
     period, multiplied by 182/365 (to reflect the one-half year period).

THE ARBITRAGE FUND - CLASS I
- --------------------------------------------------------------------------------
                                   BEGINNING         ENDING
                                 ACCOUNT VALUE    ACCOUNT VALUE   EXPENSES PAID
                                DECEMBER 1, 2004  MAY 31, 2005    DURING PERIOD*
- --------------------------------------------------------------------------------
Based on Actual Fund Return       $ 1,000.00       $   994.10     $     9.84
Based on Hypothetical 5% Return
 (before expenses)                $ 1,000.00       $ 1,015.06     $     9.95
- --------------------------------------------------------------------------------

*    Expenses are equal to the Arbitrage Fund - Class I annualized expense ratio
     of 1.98% for the period,  multiplied by the average  account value over the
     period, multiplied by 182/365 (to reflect the one-half year period).

                      Federal Tax Information (Unaudited)
================================================================================

In accordance with federal tax requirements, the following provides shareholders
with information concerning  distributions from ordinary income and net realized
gains made by the Fund during the year ended May 31,  2005.  For the fiscal year
ended  May 31,  2005  certain  dividends  paid by the Fund may be  subject  to a
maximum  tax rate of 15%,  as  provided  for by the Jobs and  Growth  Tax Relief
Reconciliation Act of 2003. The Fund intends to designate up to a maximum amount
of $10,778,315 as taxed at a maximum rate of 15%.  Complete  information will be
computed and reported in conjunction with your 2005 Form 1099-DIV.





30


                               THE ARBITRAGE FUND
                         Other Information (Unaudited)
================================================================================

A description of the policies and procedures that the Fund uses to vote proxies
relating to portfolio  securities  is available  without  charge upon request by
calling toll-free 1-800-295-4485, or on the Securities and Exchange Commission's
("SEC") website at http://www.sec.gov.  Information regarding how the Fund voted
proxies relating to portfolio  securities during the most recent 12-month period
ended June 30 is  available  without  charge upon  request by calling  toll-free
1-800-295-4485, or on the SEC's website at http://www.sec.gov.

The Trust files a complete  listing of portfolio  holdings for the Fund with the
SEC as of the first and third  quarters  of each  fiscal  year on Form N-Q.  The
filings will be available upon request, by calling 1-800-295-4485.  Furthermore,
you  will  be able to  obtain  a copy of the  filing  on the  SEC's  website  at
http://www.sec.gov. The Trust's Forms N-Q may also be reviewed and copied at the
SEC's Public Reference Room in Washington,  DC, and information on the operation
of the Public Reference Room may be obtained by calling 1-800-SEC-0330.





                                                                              31


                               THE ARBITRAGE FUND
              Trustees' Renewal Of Advisory Agreement (Unaudited)
================================================================================

The Board of Trustees of The Arbitrage  Fund (the "Fund"),  including a majority
of its independent  Trustees,  approved the continuance of the Fund's investment
advisory agreement with Water Island Capital, LLC, the Fund's investment adviser
(hereafter referred to as the "Adviser").  The board determined that continuance
of the investment  advisory  agreement was in the best interests of the Fund and
its shareholders.

The board  based  its  decision  upon its most  recent  review of the  Adviser's
investment  personnel,   portfolio  management  process,  and  performance.  The
Trustees  discussed the factors below, among others.  However,  no single factor
determined  whether  the  board  approved  the  continuation  of the  investment
advisory  agreement.  Rather, it was the totality of the factors that led to the
decision.

NATURE,  EXTENT,  AND QUALITY OF SERVICES

The board considered the experience of the personnel  managing the Fund's assets
as well as the quality of the Fund's investment  management over both short- and
long-term  periods.  The board  concluded  the Adviser has provided high quality
consistent service to the Fund and its shareholders.

COST

The board  considered  the Fund's overall  expense ratio,  comparing it to other
similarly  managed  mutual funds.  In its  consideration  of the Fund's  overall
expense ratio,  the board also  considered the Adviser's long term commitment to
cap  operating  expenses  by waiving a portion of its  advisory  fee.  The board
during its review of costs considered the Fund's advisory fee, comparing the fee
to other funds offering similar investment strategies.

The board  concluded even though the Fund's overall expense ratio is higher than
the average of comparably managed funds, they believe shareholders are receiving
a quality  investment  option for a reasonable  price.  The board also concluded
that  although the advisory  fees payable to the Adviser are in the higher range
of fees  for  other  comparably  managed  funds,  they  believe  the  fees to be
reasonable  given the  quality  of  services  provided  by the  Adviser  and the
complexity of investment strategies implemented by the Adviser.

PROFITABILITY OF ADVISER

The board considered the Adviser's  profitability with regards to its management
of the Fund,  concluding that the Adviser's  profitability was not excessive and
therefore was a secondary  factor in connection  with the evaluation of advisory
fees paid by the Fund.




32


                               THE ARBITRAGE FUND
        Trustees' Renewal Of Advisory Agreement (Unaudited) (Continued)
================================================================================

INVESTMENT PERFORMANCE

The board considered the Fund's short- and long-term performance,  including any
periods of outperformance or  underperformance  of relevant  benchmarks and peer
groups.  The board  concluded  that the Fund has performed  consistent  with its
investment strategy.  The Fund's returns have trailed the average performance of
its peer group as well the broad U.S.  stock  market (as measured by the S&P 500
Index) over the  short-term  (1 year) while  performance  when  measured  over a
longer term (4 + years) has exceeded the average  performance  of its peer group
as well the broad U.S.  stock market.  Information  about the Fund's  historical
performance can be found on page 3 of this Annual Report.

ECONOMIES OF SCALE AND ANCILLARY BENEFITS

The board concluded that as a result of the significant  decrease in Fund assets
over the past year, at the present time it would not be relevant to consider the
extent to which  economies  of scale would be  realized  as the Fund grows,  and
whether fee levels reflect potential future economies of scale.

The board also considered the "ancillary benefits" to the Adviser, viewing these
as secondary factors in connection with the evaluation of the  reasonableness of
the  advisory  fees paid by the Fund.  The board did  consider the level of soft
dollar  activity,  concluding  that as a result of the Fund being the  Adviser's
only client,  benefits  derived from these trades are going directly to the Fund
and its shareholders.



                                                                              33



                               THE ARBITRAGE FUND
                   Board of Trustees and Officers (Unaudited)
================================================================================

Overall  responsibility  for  management  of the Fund  rests  with the  Board of
Trustees.  The  Trustees  serve  during the  lifetime of the Trust and until its
termination,  or until death, resignation,  retirement or removal. The Trustees,
in turn,  elect the officers of the Fund to actively  supervise  its  day-to-day
operations. The officers have been elected for an annual term. The following are
the Trustees and executive officers of the Fund:



                                                                  POSITION HELD             LENGTH OF
TRUSTEE                  ADDRESS                          AGE     WITH THE TRUST            TIME SERVED
- -----------------------------------------------------------------------------------------------------------------
                                                                                
*John S. Orrico, CFA     650 Fifth Avenue                 45      President, Secretary,     Since May 2000
                         New York, NY  10019                      Treasurer and Trustee

*Joel C. Ackerman        295 Central Park West            60      Trustee                   Since May 2000
                         New York, NY 10024

John C. Alvarado         575 Madison Ave, 10th Floor      45      Trustee                   Since December 2003
                         New York, NY 10022

Burtt R. Ehrlich         One Landmark Square, 22nd Floor  66      Trustee                   Since March 2005
                         Stanford, CT 06901

Jay N. Goldberg          660 Madison Avenue               64      Trustee                   Since May 2000
                         New York, NY  10021

Matthew Hemberger        650 Fifth Avenue                 45      Vice President and
                         New York, NY 10019                       Chief Compliance Officer

*    Messrs  Orrico and Ackerman are "interested persons" of  the Trust within the meaning of Section 2(a)(19) of
     the Investment Company Act of 1940.


Each Trustee oversees one portfolio of the Trust.  The principal  occupations of
the Trustees and  executive  officers of the Fund during the past five years and
public directorships held by the Trustees are set forth below:

John S. Orrico is General Partner of the Adviser.  Prior to January 2000, he was
Portfolio  Manager to private trusts and entities at Lindemann Capital Partners,
L.P. (a financial management firm).

Joel C. Ackerman is currently a consultant to the Fund's  Adviser.  During 2003,
he was a Partner in  Crossroads  Investments  LP and a Partner  with LRL Capital
(hedge  fund).  Prior to September  2002,  he was a Partner of Ardsley  Partners
(hedge fund).

John C. Alvarado is a Managing Member of Power Capital Partners,  LLC which is a
financial  advisory and consulting firm. He is currently Chief Financial Officer
of Wax Inc.  (men's  retail  apparel),  a Managing  Director  of Energy  Finance
Merchants,  LLC, and Managing  Member of Gordon Alvarado LLC. From 1995 to 2000,
he was senior Vice President,  Co-Founder and Partner of Stratum Group LP, which
is private a equity investment firm.

Jay N.  Goldberg  is Senior  Managing  Director  of Hudson  Ventures  (a venture
capital company).

Matthew  Hemberger  is  Chief  Compliance  Officer  of  the  Adviser  and  Chief
Compliance  Officer  to the  Trust.  Prior to  March  2001,  he was an  Analyst,
Assistant  Portfolio  Manager,  and  CFO at  Lindemann  Capital  Partners,  L.P.

Additional  information  about  members of the Board of Trustees and Officers is
available in the Statement of  Additional  Information  (SAI).  To obtain a free
copy of the SAI, please call 1-800-295-4485.

34




                                [GRAPHIC OMITTED]

                               THE ARBITRAGE FUND

                        A SERIES OF THE ARBITRAGE FUNDS


                         ADVISER  WATER ISLAND CAPITAL, LLC
                                  650 Fifth Avenue, 6th Floor
                                  New York, NY  10019

                     DISTRIBUTOR  SEI INVESTMENTS DISTRIBUTION CO.
                                  Oaks, PA 19456

                  TRANSFER AGENT  DST SYSTEMS, INC.
                                  P.O. Box 219842
                                  Kansas City, MO 64121-9842

                       CUSTODIAN  MELLON BANK, N.A.
                                  One Mellon Bank Center
                                  Pittsburgh, PA 15258







ITEM 2. CODE OF ETHICS.

As of the end of the period covered by this report, the registrant has adopted a
code of ethics that applies to the  registrant's  principal  executive  officer,
principal  financial officer,  principal  accounting  officer or controller,  or
persons performing  similar  functions,  regardless of whether these individuals
are employed by the registrant or a third party.  Pursuant to Item  11(a)(1),  a
copy of  registrant's  code of ethics is filed as an exhibit to this Form N-CSR.
During  the  period  covered  by this  report,  the code of ethics  has not been
amended. The registrant has not granted any waivers, including implicit waivers,
from the provisions of the code of ethics.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

The  registrant's  board of trustees has  determined  that the registrant has at
least one audit committee  financial expert serving on its audit committee.  The
name of the audit committee  financial expert is John C. Alvarado.  Mr. Alvarado
is "independent" for purposes of this Item.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

     (a)  AUDIT  FEES.  The  aggregate  fees  billed for  professional  services
          rendered by the principal accountant for the audit of the registrant's
          annual financial statements or for services that are normally provided
          by the accountant in connection with statutory and regulatory  filings
          or engagements  were $xx,xxx with respect to the  registrant's  fiscal
          year ended May 31, 2005.  The aggregate  fees billed for  professional
          services  rendered by the  principal  accountant  for the audit of the
          registrant's  annual  financial  statements  or for services  that are
          normally  provided by the accountant in connection  with statutory and
          regulatory  filings or  engagements  were  $15,500 with respect to the
          registrant's fiscal year ended May 31, 200.


     (b)  AUDIT-RELATED  FEES.  No fees  were  billed  in either of the last two
          fiscal  years for  assurance  and related  services  by the  principal
          accountant that are reasonably related to the performance of the audit
          of the  registrant's  financial  statements and are not reported under
          paragraph (a) of this Item.


     (c)  TAX FEES.  No fees were billed in either of the last two fiscal  years
          for professional services rendered by the principal accountant for tax
          compliance, tax advice, and tax planning.


     (d)   ALL OTHER FEES.  No fees were billed in either of the last two fiscal
           years for products and services provided by the principal accountant,
           other than the  services  reported in  paragraphs  (a) through (c) of
           this Item.


     (e)(1) The  audit  committee  has not  adopted  pre-approval  policies  and
            procedures described in paragraph (c)(7) of Rule 2-01 of  Regulation
            S-X.

     (e)(2) None of the services  described in paragraph (b) through (d) of this
            Item  were  approved  by the audit  committee  pursuant to paragraph
            (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.







     (f)  Less  than  50%  of  hours  expended  on  the  principal  accountant's
          engagement to audit the registrant's financial statements for the most
          recent fiscal year were  attributed to work performed by persons other
          than the principal accountant's full-time, permanent employees.


     (g)  No  non-audit  fees were billed in either of the last two fiscal years
          by  the   registrant's   accountant  for  services   rendered  to  the
          registrant,  and rendered to the registrant's  investment adviser (not
          including any sub-adviser whose role is primarily portfolio management
          and is subcontracted with or overseen by another investment  adviser),
          and any entity  controlling,  controlled  by, or under common  control
          with the adviser that provides ongoing services to the registrant.


     (h)  The principal  accountant  has not provided any non-audit  services to
          the  registrant's  investment  adviser (not including any  sub-adviser
          whose role is primarily portfolio management and is subcontracted with
          or  overseen   by  another   investment   adviser),   and  any  entity
          controlling,   controlled   by,  or  under  common  control  with  the
          investment adviser that provides ongoing services to the registrant.


ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable

ITEM 6. SCHEDULE OF INVESTMENTS.

Not applicable [schedule filed with Item 1]

ITEM 7.  DISCLOSURE  OF PROXY VOTING  POLICIES  AND  PROCEDURES  FOR  CLOSED-END
         MANAGEMENT INVESTMENT COMPANIES.

Not applicable

ITEM 8.  PURCHASES OF EQUITY  SECURITIES  BY  CLOSED-END  MANAGEMENT  INVESTMENT
         COMPANY AND AFFILIATED PURCHASERS.

Not applicable

ITEM 9. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

The registrant has not adopted  procedures by which  shareholders  may recommend
nominees to the registrant's board of trustees.

ITEM 10. CONTROLS AND PROCEDURES.

(a)(1)  Based on his  evaluation  of the  registrant's  disclosure  controls and
procedures  (as defined in Rule  30a-3(c)  under the  Investment  Company Act of
1940)  as of a date  within  90 days of the  filing  date  of this  report,  the
registrant's  principal  executive  officer and principal  financial officer has
concluded that such disclosure  controls and procedures are reasonably  designed
and are operating  effectively to ensure that material  information  relating to
the registrant, including its consolidated subsidiaries, is made known to him by
others  within  those  entities,  particularly  during  the period in which this
report is being prepared,  and that the information  required in filings on Form
N-CSR is recorded, processed, summarized, and reported on a timely basis.






(a)(2) There were no changes in the registrant's internal control over financial
reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940)
that  occurred  during  the  registrant's  most  recent  fiscal  half-year  (the
registrant's  second fiscal half-year in the case of an annual report) that have
materially  affected,  or  are  reasonably  likely  to  materially  affect,  the
registrant's internal control over financial reporting.

ITEM 11. EXHIBITS.

File the  exhibits  listed  below as part of this  Form.  Letter or  number  the
exhibits in the sequence indicated.

(a)(1) Any code of ethics,  or  amendment  thereto,  that is the  subject of the
disclosure  required  by Item 2, to the extent  that the  registrant  intends to
satisfy the Item 2 requirements through filing of an exhibit: Attached hereto

(a)(2)  A  separate  certification  for each  principal  executive  officer  and
principal financial officer of the registrant as required by Rule 30a-2(a) under
the Act (17 CFR 270.30a-2(a)): Attached hereto

(a)(3) Any written  solicitation to purchase  securities  under Rule 23c-1 under
the Act (17 CFR 270.23c-1) sent or given during the period covered by the report
by or on behalf of the registrant to 10 or more persons: Not applicable

(b)   Certifications   required  by  Rule   30a-2(b)   under  the  Act  (17  CFR
270.30a-2(b)): Attached hereto





Exhibit 99.CODE ETH       Code of Ethics

Exhibit 99.CERT           Certifications required by Rule 30a-2(a) under the Act

Exhibit 99.906CERT        Certifications required by Rule 30a-2(b) under the Act





                                   SIGNATURES


Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.


(Registrant)   The Arbitrage Funds
             --------------------------------------------------------------



By (Signature and Title)*    /s/ John S. Orrico
                           --------------------------------------------

                           John S. Orrico, President and Treasurer

Date          July xx, 2005
      -----------------------------




Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment  Company  Act of  1940,  this  report  has been  signed  below by the
following  persons on behalf of the  registrant and in the capacities and on the
dates indicated.





By (Signature and Title)*    /s/ John S. Orrico
                           --------------------------------------------

                           John S. Orrico, President and Treasurer


Date          July xx, 2005
      -----------------------------




* Print the name and title of each signing officer under his or her signature.