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    811-21666
                                                -------------------

                           Hatteras Master Fund, L.P.
        -----------------------------------------------------------------
               (Exact name of registrant as specified in charter)

                         8816 Six Forks Road, Suite 107
                          Raleigh, North Carolina 27615
        -----------------------------------------------------------------
               (Address of principal executive offices) (Zip code)

                                David B. Perkins
                         8816 Six Forks Road, Suite 107
                          Raleigh, North Carolina 27615
        -----------------------------------------------------------------
                     (Name and address of agent for service)

       registrant's telephone number, including area code: (919) 846-2324
                                                          ---------------

                        Date of fiscal year end: March 31
                                                ---------

                    Date of reporting period: March 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.

The Report to Shareholders is attached herewith.


                           HATTERAS MASTER FUND, L.P.

                              FINANCIAL STATEMENTS

                         For the period January 1, 2005
               (commencement of operations) through March 31, 2005



                           HATTERAS MASTER FUND, L.P.

                         FOR THE PERIOD JANUARY 1, 2005
               (COMMENCEMENT OF OPERATIONS) THROUGH MARCH 31, 2005

                                TABLE OF CONTENTS

Report of Independent Registered Public Accounting Firm .................      1
Schedule of Investments .................................................    2-3
Statement of Financial Condition ........................................      4
Statement of Operations .................................................      5
Statement of Changes in Partners' Capital ...............................      6
Statement of Cash Flows .................................................      7
Notes to Financial Statements ...........................................   8-13
Board of Directors (unaudited) ..........................................     14
Fund Management (unaudited) .............................................     15
Other Information (unaudited) ...........................................     16



                                                     Deloitte & Touche LLP
                                                     1700 Market Street
                                                     Philadelphia, PA 19103-3984
                                                     USA

                                                     Tel: +1 215 246 2300
[GRAPHIC OMITTED]                                    Fax: +1 215 569 2441
                                                     www.deloitte.com

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Partners of
Hatteras Master Fund, L.P.

We have audited the  accompanying  statement of financial  condition of Hatteras
Master Fund, L.P. (the "Master Fund"), including the schedule of investments, as
of March  31,  2005,  and the  related  statements  of  operations,  changes  in
partners'   capital  and  cash  flows  for  the  period  from  January  1,  2005
(commencement of operations) through March 31, 2005. These financial  statements
are the responsibility of the Master Fund's management. Our responsibility is to
express an opinion on these financial statements based on our audit.

We conducted  our audit 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 are free of material misstatement. The Master Fund is not required to
have,  nor were we engaged to perform,  an audit of its  internal  control  over
financial  reporting.  An audit included  consideration of internal control over
financial  reporting  as  a  basis  for  designing  audit  procedures  that  are
appropriate  in the  circumstances,  but not for the  purpose of  expressing  an
opinion  on the  effectiveness  of  the  Master  Fund's  internal  control  over
financial  reporting.  Accordingly,  we express no such  opinion.  An audit also
includes  examining,  on a test  basis,  evidence  supporting  the  amounts  and
disclosures in the financial  statements,  assessing the  accounting  principles
used and  significant  estimates made by  management,  as well as evaluating the
overall financial statement  presentation.  Our procedures included confirmation
of investments owned as of March 31, 2005, by correspondence with the Underlying
Fund  managers.  We believe that our audit  provides a reasonable  basis for our
opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all material respects, the financial position of the Master Fund as of March 31,
2005, and the results of its operations,  the changes in its partners'  capital,
and its cash  flows  for the  period  from  January  1,  2005  (commencement  of
operations)  through March 31, 2005, in conformity  with  accounting  principles
generally accepted in the United States of America.

As  discussed  in Note 2, the Master  Fund's  investments  in  Underlying  Funds
(approximately  99.18%  of net  assets),  are  stated  at fair  value  based  on
estimates received from the Underlying Funds. The respective  managements of the
Underlying  Funds have  estimated  the fair  values  relating  to certain of the
underlying  investments  of these  Underlying  Funds in the  absence  of readily
ascertainable  market values. These values may differ from the values that would
have  been  used had a ready  market  for  these  investments  existed,  and the
differences could be material.


/s/ Deloitte & Touche LLP

May 24, 2005



HATTERAS MASTER FUND, L.P.

SCHEDULE OF INVESTMENTS - MARCH 31, 2005

- --------------------------------------------------------------------------------



                                                                          COST          FAIR VALUE
                                                                       ----------      ------------
                                                                                 
INVESTMENTS IN UNDERLYING FUNDS (99.18%)

        ABSOLUTE RETURN (a),(b) (21.87%)
              AQR Global Asset Institutional Fund, L.P.                $4,289,864      $  4,348,320
              Courage Special Situations Fund, L.P.                     4,827,675         4,919,607
              M&M Arbitrage, LLC                                        4,646,299         4,302,151
              Silverback Partners, L.P.                                 4,397,274         4,178,312
              Smith Breeden Mortgage Partners L.P.                      4,413,258         4,473,245
              Titan Global Return Fund LLC                              2,393,908         2,286,101
              Wellington Partners, LLC                                  1,035,759         1,044,552
                                                                                       ------------
                                                                                         25,552,288
                                                                                       ------------
        ENHANCED FIXED INCOME (a),(b) (17.35%)
              Contrarian Capital Fund I, L.P.                           6,880,064         7,072,320
              GMO Global Bond Fund, L.P.                                5,018,453         4,898,285
              Greylock Global Opportunity Fund, L.P.                    4,922,405         4,996,012
              Ore Hill Partners, LLC                                    3,221,928         3,304,691
                                                                                       ------------
                                                                                         20,271,308
                                                                                       ------------
        ENERGY AND NATURAL RESOURCES (a),(b) (8.13%)
              Cambridge Energy, L.P.                                    4,066,534         4,418,223
              Southport Energy Plus Partners, L.P.                      4,583,819         5,081,209
                                                                                       ------------
                                                                                          9,499,432
                                                                                       ------------
        OPPORTUNISTIC EQUITY (a),(b) (33.49%)
              CCM International Small Cap Value Fund, L.P.              2,029,762         2,028,504
              CCM Small Cap Qualified Fund, L.P.                        2,500,000         2,647,499
              CRM Windridge Partners, L.P.                              3,022,017         3,063,480
              GMO Mean Reversion Fund A                                 5,770,065         5,925,936
              GMO US Aggressive Long/Short Fund                         4,247,757         4,513,183
              Sci-Tech Investment Partners, L.P.                        2,295,782         2,118,450
              SCP Domestic Fund, L.P.                                   4,002,947         4,104,039
              SR Global Fund LP (Class C) International                 3,457,674         3,495,210
              SR Global Fund LP (Class G) Emerging                      4,281,970         4,413,603
              SR Global Fund LP (Class H) Japan                         2,365,240         2,293,085
              The Platinum Fund Ltd.                                    2,535,461         2,519,406
              Witches Rock Fund, L.P.                                   2,003,000         2,006,063
                                                                                       ------------
                                                                                         39,128,458
                                                                                       ------------
        PRIVATE EQUITY COMPOSITE (a),(b) (7.53%)
              Crosslink Crossover Fund IV, L.P.                         4,883,399         4,816,043
              Pipe Equity Partners LLC                                  1,574,693         1,620,518
              Protege Partners, L.P.                                    2,031,000         2,049,097
              VCFA Private Equity Partners IV, L.P.                       305,750           305,750
                                                                                       ------------
                                                                                          8,791,408
                                                                                       ------------


                        See Notes to Financial Statements


                                       2


HATTERAS MASTER FUND, L.P.

SCHEDULE OF INVESTMENTS - MARCH 31, 2005 (CONTINUED)

- --------------------------------------------------------------------------------



                                                                          COST          FAIR VALUE
                                                                       ----------      ------------
                                                                                 
INVESTMENTS IN UNDERLYING FUNDS (99.18%)

        REAL ESTATE COMPOSITE (10.81%)
              ING Clarion CRA Hedge Fund, L.P. (a),(b)                 $5,356,915      $  5,139,324
              Security Capital Preferred Growth, Inc. (b)                 964,042           938,383
              Transwestern Mezzanine Realty Partner II, LLC (b)           376,780           376,780
              Wells Street Partners, LLC (a),(b)                        6,386,675         6,175,433
                                                                                       ------------
                                                                                         12,629,920
                                                                                       ------------

        TOTAL INVESTMENTS IN UNDERLYING FUNDS (COST $115,088,169)                       115,872,814

        OTHER ASSETS IN EXCESS OF LIABILITIES (0.82)%                                       953,832
                                                                                       ------------

        PARTNERS' CAPITAL - 100.00%                                                    $116,826,646
                                                                                       ============


(a) - Non-income producing securities

(b) - Securities are issued in private  placement  transactions  and as such are
restricted  as to resale.  Total cost and value of  restricted  securities as of
March 31, 2005 was $115,088,169 and $115,872,814, respectively.

                        See Notes to Financial Statements


                                       3


HATTERAS MASTER FUND, L.P.

STATEMENT OF FINANCIAL CONDITION - MARCH 31, 2005
- --------------------------------------------------------------------------------

ASSETS

Investments in Underlying Funds, at fair value (cost $115,088,169)  $115,872,814
Cash and cash equivalents                                              1,031,774
Prepaid insurance                                                         94,500
                                                                    ------------

               TOTAL ASSETS                                         $116,999,088
                                                                    ============

LIABILITIES AND PARTNERS' CAPITAL

Organizational fees payable                                         $     79,639
Accounting and administration fee payable                                 44,662
Professional fees payable                                                 40,250
Board of directors' fees payable                                           2,500
Custody fee payable                                                        1,785
Investor servicing fees payable                                               75
Other accrued expenses                                                     3,531
                                                                    ------------

              TOTAL LIABILITIES                                          172,442

PARTNERS' CAPITAL                                                    116,826,646
                                                                    ------------

TOTAL LIABILITIES AND PARTNERS' CAPITAL                             $116,999,088
                                                                    ============

                        See Notes to Financial Statements


                                       4


HATTERAS MASTER FUND, L.P.

STATEMENT OF OPERATIONS
FOR THE PERIOD JANUARY 1, 2005  (COMMENCEMENT  OF OPERATIONS)  THROUGH MARCH 31,
2005
- --------------------------------------------------------------------------------


                                                                           
INVESTMENT INCOME:
        Dividends                                                             $  18,779
        Interest                                                                    327
                                                                              ---------

        TOTAL INVESTMENT INCOME                                                  19,106
                                                                              ---------

OPERATING EXPENSES:
        Management fees                                                         302,936
        Accounting and administration fees                                       44,662
        Professional fees                                                        40,250
        Insurance                                                                31,500
        Risk management expense                                                  27,187
        Board of directors' fees                                                 10,000
        Organization expense                                                     82,639
        Custody fees                                                              1,785
        Investor servicing fees                                                      75
        Other expenses                                                            6,500
                                                                              ---------

        TOTAL OPERATING EXPENSES                                                547,534
                                                                              ---------

        NET INVESTMENT LOSS                                                    (528,428)
                                                                              ---------

REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS IN UNDERLYING FUNDS
        Net realized loss on investments                                       (132,580)
        Net unrealized appreciation on investments                              784,645
                                                                              ---------

        NET REALIZED AND UNREALIZED GAIN ON INVESTMENTS IN UNDERLYING FUNDS     652,065
                                                                              ---------

NET INCREASE IN PARTNERS' CAPITAL RESULTING FROM OPERATIONS                   $ 123,637
                                                                              =========


                        See Notes to Financial Statements


                                       5


HATTERAS MASTER FUND, L.P.

STATEMENT OF CHANGES IN PARTNERS' CAPITAL
FOR THE PERIOD JANUARY 1, 2005  (COMMENCEMENT  OF OPERATIONS)  THROUGH MARCH 31,
2005
- --------------------------------------------------------------------------------



                                                            GENERAL       LIMITED
                                                           PARTNER'S     PARTNERS'        TOTAL PARTNERS'
                                                            CAPITAL       CAPITAL             CAPITAL
                                                           ---------------------------------------------
                                                                                  
PARTNERS' CAPITAL AT BEGINNING OF PERIOD                       --      $     100,000       $     100,000

    Capital contributions                                      --         35,596,058          35,596,058

    Transfer in-kind subscriptions (Note 1)                    --         89,006,951          89,006,951

    Capital withdrawals                                        --         (8,000,000)         (8,000,000)

    Net investment loss                                        --           (528,428)           (528,428)

    Net realized loss on investments in
       Underlying Funds                                        --           (132,580)           (132,580)

    Net increase in unrealized appreciation on
       investments in Underlying Funds                         --            784,645             784,645
                                                           ---------------------------------------------

PARTNERS' CAPITAL AT END OF PERIOD                             --      $ 116,826,646       $ 116,826,646
                                                           =============================================


                        See Notes to Financial Statements


                                       6


HATTERAS MASTER FUND, L.P.

STATEMENT OF CASH FLOWS
FOR THE PERIOD JANUARY 1, 2005  (COMMENCEMENT  OF OPERATIONS)  THROUGH MARCH 31,
2005
- --------------------------------------------------------------------------------


                                                                      
CASH FLOWS FROM OPERATING ACTIVITIES
Net increase in partners' capital resulting from operations              $    123,637
     Adjustments to reconcile net increase in partners' capital from
     investment operations to net cash used for operating activities:
              Purchases of Underlying Funds                               (30,622,961)
              Proceeds from redemption in Underlying Funds                  4,409,163
              Net realized loss on investments in Underlying Funds            132,580
              Net appreciation on investments in Underlying Funds            (784,645)
              Prepaid insurance                                               (94,500)
              Organization fees payable                                        79,639
              Accounting and administration fee payable                        44,662
              Professional fees payable                                        40,250
              Board of directors' fees payable                                  2,500
              Custody fee payable                                               1,785
              Investor servicing fee payable                                       75
              Other accrued expenses                                            3,531
                                                                         ------------

     Net cash used in operating activities                                (26,664,284)
                                                                         ------------

CASH FLOWS FROM FINANCING ACTIVITIES
      Capital contributions                                                35,596,058
      Capital withdrawals                                                  (8,000,000)
                                                                         ------------

      Net cash provided by financing activities                            27,596,058
                                                                         ------------

Net increase in cash and cash equivalents                                     931,774
Cash and cash equivalents at beginning of period                              100,000
                                                                         ------------

Cash and cash equivalents at end of period                               $  1,031,774
                                                                         ============

SUPPLEMENTARY CASH FLOW INFORMATION
    Non-Cash financing activities
         Transfer-in-kind subscriptions                                  $ 89,006,951
                                                                         ============


                        See Notes to Financial Statements


                                       7


HATTERAS MASTER FUND, L.P.

NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------

1.    ORGANIZATION

      Hatteras  Master Fund, L.P. (the "Master Fund") was organized as a limited
      partnership  under the laws of the State of Delaware on October 29,  2004.
      The  Master  Fund  is  registered  under  the  1940  Act as a  closed-end,
      non-diversified  management investment company. The Master Fund is managed
      by Hatteras Investment Partners LLC (the "Investment Manager"), a Delaware
      limited  liability company  registered as an investment  adviser under the
      Investment  Advisers Act of 1940, as amended.  The objective of the Master
      Fund is to generate consistent  long-term  appreciation and returns across
      all market cycles. To achieve its objective,  the Master Fund will provide
      its limited partners (each, a "Partner" and together, the "Partners") with
      access to a broad range of  investment  strategies  and asset  categories,
      trading  advisors  ("Advisors")  and  overall  asset  allocation  services
      typically  available  on  a  collective  basis  to  larger   institutions.
      Generally,   the  Investment  Manager  intends  to  select  Advisors  that
      collectively employ widely diversified investment strategies and engage in
      such techniques as Opportunistic Equity,  Enhanced Fixed Income,  Absolute
      Return, Private Equity, Real Estate and Energy/Natural Resources. However,
      the  Investment  Manager  may  also  retain  Advisors  who  utilize  other
      strategies. The Master Fund commenced operations on January 3, 2005. Prior
      to January 3, 2005,  the Master  Fund has not had any  transactions  other
      than those  related to  organizational  matters and the sale of a $100,000
      interest to Hatteras Diversified Strategies Fund, LP.

      Hatteras Investment  Management LLC, a Delaware limited liability company,
      serves as the General Partner of the Master Fund ("General Partner").  The
      General  Partner has  initially  appointed a Board of Directors  ("Board")
      and, to the fullest extent  permitted by applicable  law, has  irrevocably
      delegated  to the Board its rights and powers to monitor  and  oversee the
      business affairs of the Master Fund,  including the complete and exclusive
      authority to oversee and  establish  policies  regarding  the  management,
      conduct and operation of the Master Fund's business.

      On January 1,  2005,  the Fund  received  capital  contributions  totaling
      $116,269,458, including contributions in the form of transfer-in-kind from
      Hatteras   Diversified   Strategies  Fund,  LP  and  Hatteras  Diversified
      Strategies   Offshore  Fund,   Ltd  for   $72,386,769   and   $16,620,182,
      respectively.  In addition,  the Hatteras Diversified  Strategies Offshore
      Fund  Ltd  transferred  receivables  in  the  amount  of  $17,242,388  and
      liquidated  $10,020,119 of the Fund's  securities at December 31, 2004 and
      reinvested the proceeds in the Master Fund.

2.    SIGNIFICANT ACCOUNTING POLICIES

      These   financial   statements  have  been  prepared  in  accordance  with
      accounting  principles  generally accepted in the United States of America
      and are expressed in United States dollars.  The following is a summary of
      significant  accounting  and  reporting  policies  used in  preparing  the
      financial statements.

      A. INVESTMENT VALUATION - INVESTMENTS IN UNDERLYING FUNDS

      The  Master  Fund will value  interests  in the  Underlying  Funds at fair
      value,  which  ordinarily will be the value determined by their respective
      investment  managers,  in accordance  with  procedures  established by the
      Board.  Investments  in  Underlying  Funds are subject to the terms of the


                                       8


HATTERAS MASTER FUND, L.P.

NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

      SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

      A. INVESTMENT VALUATION - INVESTMENTS IN UNDERLYING FUNDS (CONTINUED)

      Underlying Funds' offering  documents.  Valuations of the Underlying Funds
      may be subject to  estimates  and are net of  management  and  performance
      incentive fees or allocations payable to the Underlying Funds' managers as
      required by the Underlying  Funds' offering  documents.  If the Investment
      Manager  determines  that the most recent value reported by the Underlying
      Fund does not  represent  fair  value or if the  Underlying  Fund fails to
      report a value to the  Master  Fund,  a fair value  determination  is made
      under procedures  established by and under the general  supervision of the
      Board.  Because of the inherent  uncertainty  in valuation,  the estimated
      values  may differ  from the values  that would have been used had a ready
      market for the securities existed, and the differences could be material.

      B. INVESTMENT INCOME

      Interest  income is recorded on the accrual basis.  The  Underlying  Funds
      generally do not make regular cash  distributions  of income and gains and
      so are generally considered non-income producing  securities,  however the
      Master Fund owns two  securities  that are income  producing  and disburse
      regular cash distributions.

      C. FUND EXPENSES

      The Master Fund will bear all  expenses  incurred  in the  business of the
      Master Fund, including,  but not limited to, the following:  all costs and
      expenses  related to portfolio  transactions  and positions for the Master
      Fund's  account;  legal  fees;  accounting  and  auditing  fees;  costs of
      insurance; registration expenses; certain offering and organization costs;
      and expenses of meetings of the Board.

      In accordance with the Private  Placement  Memorandum,  the Master Fund is
      amortizing   organizational   expenses  over  a  sixty-month  period.  For
      financial  statement   purposes,   in  order  to  comply  with  accounting
      principles  generally  accepted in the United States of America,  the Fund
      expensed the  unamortized  amount of  organizational  expenses  during the
      current period.

      D. INCOME TAXES

      The  Master  Fund is  treated  as a  partnership  for  Federal  income tax
      purposes and therefore  not subject to Federal  income tax. For income tax
      purposes,  the individual  partners will be taxed upon their  distributive
      share of each item of the Master Fund's income, gain, loss, deductions and
      credits.

      E. CASH AND CASH EQUIVALENTS

      Cash  and cash  equivalents  includes  amounts  held in  interest  bearing
      overnight accounts.  At March 31, 2005, the Master Fund held $1,031,774 in
      an interest bearing cash account at PNC Bank.


                                       9


HATTERAS MASTER FUND, L.P.

NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

2.    SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

      F. USE OF ESTIMATES

      The  preparation  of financial  statements in conformity  with  accounting
      principles generally accepted in the United States of America requires the
      Master Fund 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  expense  during  the  reporting
      period. Actual results could differ from these estimates.

3.    ALLOCATION OF PARTNERS' CAPITAL ACCOUNT

      Allocation  Periods  begin on the day after the last day of the  preceding
      Allocation  Period and end at the close of business on (1) the last day of
      each month,  (2) the last day of each taxable year;  (3) the day preceding
      each day on which interests are purchased,  (4) the day on which interests
      are  repurchased,  or (5) the day on which any  amount is  credited  to or
      debited from the capital account of any Partner other than an amount to be
      credited  to or debited  from the  capital  accounts  of all  Partners  in
      accordance with their respective  investment  percentages.  Net Profits or
      net losses of the Master Fund for each Allocation Period will be allocated
      among and  credited  to or debited  against  the  capital  accounts of the
      Partners.

4.    MANAGEMENT FEE, RELATED PARTY TRANSACTIONS AND OTHER

      The Investment Manager is responsible for providing day-to-day  investment
      management  services to the Fund,  subject to the ultimate  supervision of
      and  subject to any  policies  established  by the Board,  pursuant to the
      terms of an investment management agreement with the Fund (the "Investment
      Management  Agreement").  Under the Investment Management  Agreement,  the
      Investment  Manager  is  responsible  for  developing,   implementing  and
      supervising the Fund's investment program.

      In  consideration  for such services,  the Master Fund pays the Investment
      Manager a management  fee, due and payable in advance within five business
      days after the beginning of each fiscal  quarter,  at an annual rate equal
      to 1.00% of the  aggregate  value of its net assets  determined  as of the
      first business day of each fiscal quarter.

      Each member of the Board who is not an  "interested  person" of the Master
      Fund, as defined by the 1940 Act,  receives an annual retainer of $10,000.
      All Board  members are  reimbursed  by the Master Fund for all  reasonable
      out-of-pocket expenses incurred by them in performing their duties.

      PFPC Trust  Company  serves as custodian of the Master  Fund's  assets and
      provides  custodial  services  for the Master  Fund.  PFPC Inc.  serves as
      administrator and accounting agent to the Master Fund and provides certain
      accounting,  record keeping, tax and investor related services. The Master
      Fund pays a monthly fee to the administrator  based upon average partners'
      capital, subject to certain minimums.


                                       10


HATTERAS MASTER FUND, L.P.

NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

5.    INVESTMENT TRANSACTIONS

      Total  purchases of Underlying  Funds for the period ended March 31, 2005,
      amounted to $30,622,961. Total proceeds from sales of Underlying Funds for
      the period  ended  March 31,  2005,  amounted to  $4,409,163.  The cost of
      investments  in  Underlying  Funds for  Federal  income  tax  purposes  is
      adjusted for items of taxable income allocated to the Master Fund from the
      Underlying  Funds.  The Master Fund has not received  information from the
      Underlying  Funds as to the  amounts of taxable  income  allocated  to the
      Master Fund as of March 31, 2005.

6.    UNDERLYING FUNDS

      The  following  is a summary of the  investment  objective  and  liquidity
      provisions of the  Underlying  Funds that exceeded 5% of the Company's net
      assets at March 31, 2005.

      Contrarian  Capital Fund I, L.P.  seeks to maximize  total return  through
      investment   in  a  broad  based   distressed   securities   portfolio  of
      predominantly  U.S.  corporate  obligations and, to a lesser extent,  real
      estate and non-U.S. restructurings. The underlying Fund may also invest up
      to 20% of its assets in securities for which there is no ready market. The
      Underlying  fund allows for redemptions as of the last business day of any
      fiscal year on a 90 day written notice, after one fiscal year has elapsed.

      GMO Mean Reversion Fund A seeks to generate positive returns substantially
      in excess of the risk free rate by taking  advantage  of the  tendency  of
      assets  around  the  world  to  revert  to fair  pricing  over  time.  The
      Underlying Fund allows for quarterly  redemptions  with a 12-month lock-up
      period given a 14-day written notice.

      Wells  Street  Partners,  LLC invests in the  publicly-traded  real estate
      securities  market to deliver an attractive  total return.  The Underlying
      Fund allows for redemptions  with a 12-month  lock-up period,  on the last
      business day of each calendar month upon 30 days prior notice.

7.    RISK FACTORS

      An  investment in Master Fund  involves  significant  risks that should be
      carefully  considered  prior to investing and should only be considered by
      persons financially able to maintain their investment and who can afford a
      loss of a  substantial  part or all of such  investment.  The Master  Fund
      intends to invest substantially all of its available capital in securities
      of private  investment  companies.  These  investments  will  generally be
      restricted  securities that are subject to substantial  holding periods or
      are not traded in public  markets at all,  so that the Master Fund may not
      be able to resell some of its  securities  holdings for extended  periods,
      which may be several years.  No guarantee or  representation  is made that
      the investment objective will be met.


                                       11


HATTERAS MASTER FUND, L.P.

NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

8.    REPURCHASE OF PARTNERS' INTERESTS

      The Board may, from time to time and in their sole  discretion,  cause the
      Master Fund to  repurchase  interests  from  Partners  pursuant to written
      tenders by  Partners  at such times and on such  terms and  conditions  as
      established by the Board.  In  determining  whether the Master Fund should
      offer to repurchase interests,  the Board will consider the recommendation
      of the Investment  Manager.  The Investment  Manager  expects that it will
      generally  recommend to the Board that the Master Fund offer to repurchase
      interests from Partners  quarterly as of approximately  March 31, June 30,
      September 30 and December 31 of each year beginning on March 31, 2006.

      The Master Fund does not intend to  distribute  to the Partners any of the
      Master Fund's income, but intends to reinvest substantially all income and
      gains  allocable  to the  Partners.  A Partner may  therefore be allocated
      taxable income and gains and not receive any cash distribution.

9.    GUARANTEES

      In the normal  course of business,  the Master Fund enters into  contracts
      that provide general indemnifications.  The Master Fund's maximum exposure
      under these  agreements  is  dependent  on future  claims that may be made
      against the Master Fund,  and therefore  cannot be  established;  however,
      based on  experience,  the risk of loss  from such  claims  is  considered
      remote.

10.   FINANCIAL HIGHLIGHT INFORMATION

      The financial  highlights  are intended to help you  understand the Master
      Fund's financial performance for the past period. The total returns in the
      table  represent the rate that an investor would have earned or lost on an
      investment in the Master Fund.

      The ratios and total return  amounts are  calculated  based on the limited
      partner group taken as a whole.  The General Partner  interest is excluded
      from the  calculations.  An individual  limited partner's results may vary
      from those shown below due to the timing of capital transactions.

      The ratios are  calculated by dividing total dollars of income or expenses
      as applicable by the average of total monthly limited partner capital. The
      ratios do not reflect the Master Fund's  proportionate share of income and
      expenses from Underlying Funds.

      Total return amounts are calculated by geometrically linking returns based
      on the change in value  during each  accounting  period.  The total return
      amounts have not been annualized.


                                       12


HATTERAS MASTER FUND, L.P.

NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------

10.   FINANCIAL HIGHLIGHT INFORMATION (CONTINUED)

                                                                  PERIOD FROM
                                                                JANUARY 1, 2005
                                                                (COMMENCEMENT OF
                                                                OPERATIONS) TO
                                                                MARCH 31, 2005:
                                                                ----------------

Total return amortizing organizational expenses*                     0.23%

Total return after expensing organizational expenses                 0.17%

Portfolio Turnover                                                   3.72%

ANNUALIZED RATIOS:

Total Expenses                                                       1.50%

Net investment loss                                                 (1.43)%

- ----------
*     Return is indicative of amortizing organizational expenses over 60 months.


                                       13


HATTERAS MASTER FUND, L.P.

BOARD OF DIRECTORS (UNAUDITED)
- --------------------------------------------------------------------------------

The  identity of the Board  Members and brief  biographical  information  is set
forth below.



- ------------------------------------------------------------------------------------------------------------------------
                                                                                                           Number of
                                                                                                           Portfolios in
                                                                                                           Fund Complex'
                             Position(s)   Term of Office;                                                 Overseen by
                            Held with the   Length of Time  Principal Occupation(s) During Past 5 years    Director or
Name, Address & Age             Fund            Served      and Other Directorships Held by Director       Officer
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                     
INTERESTED DIRECTORS
- ------------------------------------------------------------------------------------------------------------------------
David B. Perkins, 42            Chief        3 year term;   Mr. Perkins has been Chairman and CEO since          3
1000 Watermeet Lane           Executive    Since Inception  inception of the Funds.  Mr. Perkins became
Raleigh, NC  27614           Officer and                    the President and Managing
                             Chairman of                    Principal of the Investment Manager in
                             the Board of                   September 2003 and became the co-founder and
                              Directors                     Managing Partner of CapFinancial Partners,
                                                            LLC in April 2003.  Prior to that,   he was
                                                            Managing Partner at Wachovia Securities
                                                            Financial Network, Inc. from June 2002 to
                                                            September 2003 and Managing Principal of
                                                            CapTrust Financial Advisors, LLC from October
                                                            1997 to June 2002.
- ------------------------------------------------------------------------------------------------------------------------
INDEPENDENT DIRECTORS
- ------------------------------------------------------------------------------------------------------------------------
H. Alexander Holmes, 62       Director:      3 year term;   Mr. Holmes founded Holmes Advisor Services,          3
3408 Landor Road                Audit           Since       LLC, a financial consultation firm, in 1993
Raleigh, NC  27609            Committee     December 2004
                                Member
- ------------------------------------------------------------------------------------------------------------------------
Steve E. Moss, 51             Director:      3 year term;   Mr. Moss has been a member of HMKCT                  3
918 Meadow Lane              Chairman of        Since       Properties, LLC since January 1996
Henderson, NC  27536          the Audit     December 2004
                              Committee
- ------------------------------------------------------------------------------------------------------------------------
George Y. Ragsdale II, 39     Director:      3 year term;   Mr. Ragsdale has been Investment Research            3
111 Radio Circle                Audit       Since February  Director at Kisco Management Co. since
Mount Kisco, NY  10546        Committee          2005       November 1999.
                                Member
- ------------------------------------------------------------------------------------------------------------------------
Gregory S. Sellers, 45        Director:      3 year term;   Mr. Sellers became the Chief Financial               3
2643 Steeplechase Road          Audit           Since       Officer and a director of Kings Plush, Inc.,
Gastonia, NC  28056           Committee     December 2004   a fabric manufacturer, in April 2003.  Prior
                                Member                      to that, he was the Vice President of Finance
                                                            at Parksdale Mills, Inc., a cotton and cotton
                                                            blend yarns producer, from January 1991 to
                                                            April 2003.
- ------------------------------------------------------------------------------------------------------------------------



                                       14


HATTERAS MASTER FUND, L.P.

FUND MANAGEMENT (UNAUDITED)
- --------------------------------------------------------------------------------

Set forth  below is the name,  age,  position  with the Fund,  length of term of
office,  and the  principal  occupation  for the last five  years of each of the
persons  currently  serving as Executive  Officers of the Fund. Unless otherwise
noted,  the business  address of each officer is 8816 Six Forks Road.  Suite 107
Raleigh, NC 27615



- ------------------------------------------------------------------------------------------------------------------------
                                                                                                           Number of
                                                                                                           Portfolios in
                                                                                                           Fund Complex'
                             Position(s)   Term of Office;                                                 Overseen by
                            Held with the   Length of Time  Principal Occupation(s) During Past 5 years    Director or
Name, Address & Age             Fund            Served      and Other Directorships Held by Director       Officer
- ------------------------------------------------------------------------------------------------------------------------
                                                                                                    
OFFICERS
- ------------------------------------------------------------------------------------------------------------------------
J. Michael Fields, 31           Chief           Since       Mr. Fields has been the CFO since inception         N/A
8816 Six Forks Rd.            Financial       Inception     of the Funds.  Mr. Fields became a Director
Suite 107                      Officer                      of the Investment Manager in September 2003.
Raleigh, NC 27615                                           Prior to joining the Investment Manager, Mr.
                                                            Fields was employed by CapTrust Financial
                                                            Advisors from August 2002 to September 2003.
                                                            Prior to joining CapTrust, Mr. Fields was
                                                            employed by Morgan Stanley in Atlanta,
                                                            Georgia from January 2000 to August 2002.

- ------------------------------------------------------------------------------------------------------------------------
Denise Buchanan, 42          Chief Legal         Since      Ms. Buchanan has been the CCO and CLO since         N/A
8816 Six Forks Rd.           Officer and       Inception    inception of the Funds.  Ms. Buchanan became
Suite 107                       Chief                       the Compliance Officer with CapTrust
Raleigh, NC 27615             Compliance                    Financial Partners, LLC in November 2003.
                               Officer                      Prior to joining CapTrust, Ms. Buchanan was
                                                            President of Broker/Dealer Sales &
                                                            Consulting, Inc. from 2001 to November 2003.
                                                            Previously, Ms. Buchanan was the Director of
                                                            Compliance for Atlantic Capital Management,
                                                            LLC from 1996 to 2001.
- ------------------------------------------------------------------------------------------------------------------------
Vickey Collins, 38            Secretary          Since      Ms. Collins has been the Secretary of the           N/A
8816 Six Forks Rd.                             Inception    Funds since inception.  She became the
Suite 107                                                   Operations Manager for the Investment Manager
Raleigh, NC 27615                                           in September 2004.  Prior to working at
                                                            Hatteras she was employed with McKinely
                                                            Capital Management from 1994 to 2004.
- ------------------------------------------------------------------------------------------------------------------------



                                       15


HATTERAS MASTER FUND, L.P.

OTHER INFORMATION (UNAUDITED)
- --------------------------------------------------------------------------------

PROXY VOTING
- ------------

A description of the policies and procedures that the Fund uses to determine how
to vote proxies  relating to portfolio  securities  and  shareholders  record of
actual proxy votes cast is available  at  www.sec.gov  and may be obtained at no
additional charge by calling collect 302-791-2595.

AVAILABILITY OF QUARTERLY PORTFOLIO SCHEDULES
- ---------------------------------------------

The Fund files its complete schedule of portfolio  holdings with the SEC for the
first and third quarters of each fiscal year on Form N-Q. The Fund's Form N-Q is
available,   without   charge  and  upon  request,   on  the  SEC's  website  at
http://www.sec.gov  or may be reviewed and copied at the SEC's Public  Reference
Room in Washington, DC. Information on the Public Reference Room may be obtained
by calling (800) SEC-0330.

APPROVAL OF INVESTMENT MANAGEMENT AGREEMENTS BY THE BOARD
- ---------------------------------------------------------

On  December  27,  2004,  the Board  (including  a majority  of the  Independent
Directors) approved the Investment  Management Agreement between the Master Fund
and the Investment Manager.  On March 10, 2005, the Board considered  additional
information with respect to the Investment  Management  Agreement and approved a
new Investment  Management  Agreement between the Master Fund and the Investment
Manager  (the "New  Investment  Management  Agreement"  and,  together  with the
Investment  Management  Agreement,   the  "Management   Agreements").   The  New
Investment  Management  Agreement,  if approved by  Partners,  would  revise the
calculation  methodology  by which the  management fee is determined to make the
calculation  methodology  consistent  with  common  practice  in the  investment
company industry,  but would not result in any change in the management fee rate
payable to the Investment Manager.  Under the Investment  Management  Agreement,
the Master Fund pays to the  Investment  Manager a management fee equal to 1.00%
(annualized) of the aggregate  value of the Master Fund's net assets  determined
on the first  business day of each fiscal  quarter.  The  management fee is then
payable in advance  within five business days after the beginning of each fiscal
quarter.  Under the New Investment Management  Agreement,  the Master Fund would
pay to the Investment  Manager a monthly management fee equal to 1/12th of 1.00%
(1.00%  on an  annualized  basis)  of the  aggregate  value  of its  net  assets
determined as of each month end. Under the New Investment  Management Agreement,
the  management fee would be computed on the net assets of the Master Fund as of
the last day of each month and  payable in arrears  within  five  business  days
after the end of each month.  Since the change in calculation  methodology could
result, under certain circumstances,  in an increase in the actual dollar amount
of management fees received by the Investment Manager,  the Board authorized the
officers to call a special  meeting of Partners of the Master Fund (the "Partner
Meeting") to seek Partner approval of the New Investment  Management  Agreement.
The Partner Meeting is scheduled to be held on May 27, 2005.

As part of their  deliberations with respect to the Management  Agreements,  the
Board requested and reviewed, with the assistance of counsel to the Master Fund,
various  materials  relating  to the  Investment  Manager,  including  materials
furnished by the Investment Manager.  These materials included information about
the Investment Manager's  personnel,  organizational  structure,  operations and
financial condition.


                                       16


HATTERAS MASTER FUND, L.P.

OTHER INFORMATION (UNAUDITED) (CONTINUED)
- --------------------------------------------------------------------------------

APPROVAL OF INVESTMENT MANAGEMENT AGREEMENTS BY THE BOARD (CONTINUED)
- ---------------------------------------------------------------------

The  Board  gave   particular   consideration   to  matters   relating   to  the
organizational capabilities of the Investment Manager, including: (1) the nature
and stability of the ownership of the Investment Manager;  (2) the nature of the
Investment  Manager's portfolio management  experience and resources,  including
the  experience  of  relevant  personnel;   and  (3)  the  Investment  Manager's
resources, practices and procedures to address regulatory compliance matters.

The Board  concluded  that the Investment  Manager has  sufficient  resources to
fulfill  effectively  the  Investment  Manager's  duties  under  the  Management
Agreements  and  that  the  Investment  Manager  appeared  able to  fulfill  the
Investment Manager's fiduciary duties as investment adviser to the Master Fund.

The Board also considered other information of the type regularly  reviewed when
evaluating  whether to continue  or approve an  investment  advisory  agreement,
including: (1) the terms of the Management Agreements;  (2) the standard of care
applicable  to the  Investment  Manager  under the  Management  Agreements;  (3)
information  regarding  the  performance  of and fees  paid by  certain  similar
private funds managed by the Investment Manager; (4) information compiled by the
Investment  Manager  intended to gauge the behavior of the Investment  Manager's
portfolio  management  strategy  during  periods of historical  or  hypothetical
market  stress;  (5) the Master  Fund's  estimated  investment  performance  and
expense  ratio  and the  investment  performance  and  expense  ratio  of  other
investment  companies with similar investment styles to the Master Fund; and (6)
the  structure  of,  and the  method  used to  determine,  the  compensation  of
portfolio managers.

The Board concluded that the scope and quality of services to be provided to the
Master Fund under the  Management  Agreements  were  consistent  with the Master
Fund's operational requirements.

The Board then gave  substantial  consideration  to the fees  payable  under the
Management  Agreements,  including:  (1) the  fees to be paid to the  Investment
Manager and the  Investment  Manager's  anticipated  expenses in  providing  its
services, and the fact that certain affiliates of the Investment Manager provide
other services to the Master Fund and its Partners and receive payment for these
services;  and  (2) a  comparison  of the  fees  payable  under  the  Management
Agreements  to fees paid under  investment  advisory  agreements  to  investment
advisers serving other investment  companies with similar investment programs to
the Master Fund,  which assisted the Board in evaluating the  reasonableness  of
the fees to be paid to the Investment Manager.

The Board also considered the effective fees under the Management Agreements, as
a  percentage  of assets at  different  Master Fund asset  levels,  and possible
economies  of  scale  to the  Investment  Manager.  In  this  regard  the  Board
considered the amount of assets in the Master Fund; the information  provided by
the  Investment  Manager  relating  to  its  estimated  costs;  and  information
comparing the fee rate to be charged by the  Investment  Manager (which does not
include fee breakpoints) with fee rates charged by other unaffiliated investment
managers to their clients.

After  deliberation,  the  Board  concluded  that  the  fees  to be  paid to the
Investment  Manager under the Management  Agreements were reasonable in light of
the services  provided by the Investment  Manager,  its costs and the reasonably
foreseeable Master Fund asset levels.


                                       17


ITEM 2. CODE OF ETHICS.

     (a)  The  registrant,  as of the end of the period  covered by this report,
          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.

     (c)  There  have been no  amendments,  during  the  period  covered by this
          report,  to a  provision  of the 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,  and that relates to any
          element of the code of ethics description.

     (d)  The  registrant  has not granted any  waivers,  including  an implicit
          waiver,  from a provision  of the 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,  that relates to one or
          more  of  the  items  set  forth  in  paragraph  (b)  of  this  item's
          instructions.


ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

As of the end of the period  covered by the report,  the  registrant's  board of
directors has  determined  that Steven E. Moss is qualified to serve as an audit
committee  financial  expert  serving  on its  audit  committee  and  that he is
"independent," as defined by Item 3 of Form N-CSR.


ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Audit Fees
- ----------

     (a)  The  aggregate  fees billed for each of the last two fiscal  years for
          professional  services  rendered by the principal  accountant  for the
          audit of the registrant's annual financial statements or services that
          are normally  provided by the accountant in connection  with statutory
          and  regulatory  filings or  engagements  for those  fiscal  years are
          $38,000 for 2005 and $0 for 2004.



Audit-Related Fees
- ------------------

     (b)  The  aggregate  fees  billed in each 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 are $0 for 2005 and $0 for 2004.

Tax Fees
- --------

     (c)  The  aggregate  fees  billed in each of the last two fiscal  years for
          professional  services  rendered by the principal  accountant  for tax
          compliance,  tax advice,  and tax planning are $10,500 for 2005 and $0
          for 2004.  The tax fee for the fiscal year 2005 pertains to tax review
          service on Form 1065 Schedule K1.

All Other Fees
- --------------

     (d)  The  aggregate  fees  billed in each 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 are
          $0 for 2005 and $0 for 2004.

     (e)(1)   Disclose   the  audit   committee's   pre-approval   policies  and
              procedures   described  in  paragraph   (c)(7)  of  Rule  2-01  of
              Regulation S-X.

              The  Registrants  Audit  Committee must  pre-approve the audit and
              non-audit  services  of the  Auditors  prior  to the  accountants'
              engagement.

     (e)(2)   The  percentage of services  described in each of  paragraphs  (b)
              through (d) of this Item that were approved by the audit committee
              pursuant to paragraph  (c)(7)(i)(C) of Rule 2-01 of Regulation S-X
              are as follows:

                           (b) 0%

                           (c) 100%

                           (d) 0%

     (f)  The  percentage  of  hours  expended  on  the  principal  accountant's
          engagement to audit the registrant's financial statements for the most
          recent fiscal year that were  attributed to work  performed by persons
          other than the principal accountant's  full-time,  permanent employees
          was less than fifty percent.

     (g)  The aggregate non-audit fees billed 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  for each of the last two fiscal  years of
          the registrant was $0.

     (h)  The  registrant's  audit  committee  of the  board  of  directors  has
          considered  whether the  provision  of  non-audit  services  that were
          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
          investment  adviser that provides  ongoing  services to the registrant
          that were not  pre-approved  pursuant to paragraph  (c)(7)(ii) of Rule
          2-01 of Regulation S-X is compatible  with  maintaining  the principal
          accountant's independence.


ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.



ITEM 6. SCHEDULE OF INVESTMENTS

Schedule of Investments in securities of unaffiliated issuers as of the close of
the  reporting  period is included as part of the report to  shareholders  filed
under Item 1 of this form.



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

The Proxy Voting Policies are attached herewith.


                        HATTERAS INVESTMENT PARTNERS LLC
                           HATTERAS MASTER FUND, L.P.
                      HATTERAS MULTI-STRATEGY FUND I, L.P.
                      HATTERAS MULTI-STRATEGY FUND II, L.P.

                  PROXY VOTING AND CORPORATE GOVERNANCE POLICY

         NOTE: Hatteras  Investment  Partners LLC, in its capacity as investment
               manager of Hatteras Master Fund,  L.P.,  Hatteras  Multi-Strategy
               Fund  I,  L.P.   and  Hatteras   Multi-Strategy   Fund  II,  L.P.
               (collectively,  the "Funds"), expects that the Funds would invest
               primarily in non-voting securities, and thus these proxy policies
               would generally not apply to the Funds.



A.   GENERAL CORPORATE  GOVERNANCE  BENCHMARKS  Hatteras Investment Partners LLC
     ("Hatteras")  will evaluate  issues that may have an impact on the economic
     value of client  investments  during the time period it expects to hold the
     investment.  While  there  is no  absolute  set  of  rules  that  determine
     appropriate  governance  under all  circumstances  and no set of rules will
     guarantee  ethical  behavior,  there  are  certain  benchmarks,  which,  if
     substantial  progress  is made  toward,  give  evidence  of good  corporate
     governance.  Therefore,  we will generally exercise voting rights on behalf
     of clients in accordance with this policy.

PRINCIPLE 1:  INDEPENDENCE OF BOARD FROM COMPANY MANAGEMENT

GUIDELINES:

          o    Board exercises judgment independently of management.

          o    Separate Chairman and Chief Executive.

          o    Board has access to senior management members.

          o    Board  is  comprised  of  a  significant  number  of  independent
               outsiders.

          o    Outside directors meet independently.

          o    CEO performance standards are in place.

          o    CEO performance is reviewed annually by the full board.

          o    CEO succession plan is in place.

          o    Board involvement in ratifying major strategic initiatives.


                1                                      February 2004



          o    Compensation,  audit  and  nominating  committees  are  led  by a
               majority of outside directors.

PRINCIPLE 2:  QUALITY OF BOARD MEMBERSHIP

GUIDELINES:

          o    Board  determines  necessary  board member skills,  knowledge and
               experience.

          o    Board  conducts  the  screening  and  selection  process  for new
               directors.

          o    Shareholders should have the ability to nominate directors.

          o    Directors whose present job responsibilities  change are reviewed
               as to the appropriateness of continued directorship.

          o    Directors   are   reviewed   every   3-5   years   to   determine
               appropriateness of continued directorship.

          o    Board meets regularly (at least four times annually).

PRINCIPLE 3:  APPROPRIATE MANAGEMENT OF CHANGE IN CONTROL

GUIDELINES:

          o    Protocols  should  ensure that all bid  approaches  and  material
               proposals   by   management   are   brought   forward  for  board
               consideration.

          o    Any contracts or structures,  which impose financial  constraints
               on changes in control, should require prior shareholder approval.

          o    Employment contracts should not entrench management.

          o    Management should not receive substantial rewards when employment
               contracts are terminated for performance reasons.

PRINCIPLE 4:  REMUNERATION POLICIES ARE ALIGNED WITH SHAREHOLDER INTERESTS

GUIDELINES:

          o    Executive    remuneration    should    be    commensurate    with
               responsibilities and performance.

          o    Incentive   schemes  should  align  management  with  shareholder
               objectives.

          o    Employment policies should encourage significant  shareholding by
               management and board members.


                                       2

          o    Incentive  rewards  should  be  proportionate  to the  successful
               achievement of pre-determined financial targets.

          o    Long-term  incentives  should be linked to transparent  long-term
               performance criteria.

          o    Dilution of  shareholders'  interests by share  issuance  arising
               from egregious  employee share schemes and management  incentives
               should be limited by shareholder resolution.

PRINCIPLE 5:  AUDITORS ARE INDEPENDENT

GUIDELINES:

          o    Auditors are approved by shareholders at the annual meeting.

          o    Audit,  consulting  and other fees to the auditor are  explicitly
               disclosed.

          o    The Audit Committee  should affirm the integrity of the audit has
               not been  compromised by other  services  provided by the auditor
               firm.

          o    Periodic  (every  5  years)  tender  of the  audit  firm or audit
               partner.

B.   PROXY VOTING  GUIDELINES - MACRO  RATIONALES  Macro  Rationales are used to
     explain why we vote on each proxy issue. The Macro  Rationales  reflect our
     guidelines  enabling  voting  consistency  between offices yet allowing for
     flexibility  so the local  office can  reflect  specific  knowledge  of the
     company as it relates to a proposal.

     1.   GENERAL GUIDELINES

          a.   When  our  view  of the  issuer's  management  is  favorable,  we
               generally support current management  initiatives.  When our view
               is  that  changes  to the  management  structure  would  probably
               increase   shareholder   value,  we  may  not  support   existing
               management proposals.

          b.   If management's  performance has been questionable we may abstain
               or vote against specific proxy proposals.

          c.   Where  there  is  a  clear   conflict   between   management  and
               shareholder  interests,  even in those cases where management has
               been doing a good job, we may elect to vote against management.

          d.   In  general,  we  oppose  proposals,  which in our  view,  act to
               entrench management.

          e.   In some instances,  even though we strongly  support  management,
               there are some  corporate  governance  issues  that,  in spite of
               management   objections,   we   believe   should  be  subject  to
               shareholder approval.


                                       3

          f.   We will vote in favor of shareholder resolutions for confidential
               voting.

     2.   BOARD OF DIRECTORS AND AUDITORS

          a.   Unless our objection to management's recommendation is strenuous,
               if we believe  auditors  to be  competent  and  professional,  we
               support  continuity  in the  appointed  auditing  firm subject to
               regular review.

          b.   We generally  vote for proposals that seek to fix the size of the
               board and/or  require  shareholder  approval to alter the size of
               the board and that allow shareholders to remove directors with or
               without cause.

          c.   We generally vote for proposals that permit  shareholders  to act
               by written  consent and/or give the right to shareholders to call
               a special meeting.

          d.   We generally  oppose  proposals to limit or restrict  shareholder
               ability to call special meetings.

          e.   We will vote for  separation of Chairman and CEO if we believe it
               will  lead  to  better  company  management,  otherwise,  we will
               support an outside lead director board structure.

     3.   COMPENSATION

          a.   We will not try to micro-manage compensation schemes, however, we
               believe  remuneration  should not be  excessive,  and we will not
               support   compensation   plans  that  are  poorly  structured  or
               otherwise egregious.

          b.   Senior  management  compensation  should  be set  by  independent
               directors  according to industry  standards,  taking  advice from
               benefits consultants where appropriate.

          c.   All senior management and board compensation  should be disclosed
               within annual financial statements, including the value of fringe
               benefits,  company pension  contributions,  deferred compensation
               and any company loans.

          d.   We may vote against a compensation or incentive  program if it is
               not  adequately  tied  to  a  company's   fundamental   financial
               performance;,  is vague;, is not in line with market  practices;,
               allows for option re-pricing;, does not have adequate performance
               hurdles; or is highly dilutive.

          e.   Where company and management's  performance has been poor, we may
               object to the issuance of additional  shares for option  purposes
               such that management is rewarded for poor  performance or further
               entrenches its position.

          f.   Given  the  increased  level  of  responsibility   and  oversight
               required of

                                       4

               directors,  it is reasonable to expect that  compensation  should
               increase  commensurably.  We  consider  that  there  should be an
               appropriate  balance  between  fixed  and  variable  elements  of
               compensation and between short and long term incentives.

     4.   GOVERNANCE PROVISIONS

          a.   We believe that votes at company meetings should be determined on
               the basis of one share one vote. We will vote against  cumulative
               voting proposals.

          b.   We believe that "poison pill" proposals, which dilute an issuer's
               stock when triggered by particular events, such as take over bids
               or  buy-outs,  should  be voted on by the  shareholders  and will
               support attempts to bring them before the shareholders.

          c.   Any   substantial   new  share  issuance   should  require  prior
               shareholder approval.

          d.   We believe  proposals  that  authorize  the issuance of new stock
               without  defined terms or conditions and are intended to thwart a
               take-over or restrict effective control by shareholders should be
               discouraged.

          e.   We will support  directives to increase the  independence  of the
               board of directors when we believe that the measures will improve
               shareholder value.

          f.   We  generally  do  not  oppose  management's   recommendation  to
               implement a  staggered  board and  generally  support the regular
               re-election of directors on a rotational  basis as it may provide
               some continuity of oversight.

          g.   We will support  proposals that enable  shareholders  to directly
               nominate directors.

     5.   CAPITAL STRUCTURE AND CORPORATE RESTRUCTURING

          a.   It is  difficult to direct  where a company  should  incorporate,
               however,  in  instances  where  a move  is  motivated  solely  to
               entrench management or restrict effective  corporate  governance,
               we will vote accordingly.

          b.   In general we will oppose  management  initiatives to create dual
               classes of stock,  which  serves to insulate  company  management
               from  shareholder  opinion  and  action.  We support  shareholder
               proposals to eliminate dual class schemes.


                                       5

     6.   MERGERS, TENDER OFFERS AND PROXY CONTESTS

          a.   Based on our analysis and research we will support proposals that
               increase  shareholder  value and vote against  proposals  that do
               not.

     7.   SOCIAL, ENVIRONMENTAL, POLITICAL AND CULTURAL

          a.   Depending on the situation,  we do not typically vote to prohibit
               a company from doing business anywhere in the world.

          b.   There  are  occasional   issues,   we  support,   that  encourage
               management  to make changes or adopt more  constructive  policies
               with  respect  to  social,  environmental,  political  and  other
               special  interest  issues,  but in many cases we believe that the
               shareholder proposal may be too binding or restrict  management's
               ability  to find an  optimal  solution.  While we wish to  remain
               sensitive to these  issues,  we believe  there are better ways to
               resolve them than through a proxy proposal.  We prefer to address
               these issues through engagement.

          c.   Unless   directed   by  clients  to  vote  in  favor  of  social,
               environmental, political and other special interest proposals, we
               are generally opposed to special interest  proposals that involve
               an economic  cost to the company or that  restrict the freedom of
               management to operate in the best interest of the company and its
               shareholders.

     8.   ADMINISTRATIVE AND OPERATIONS

          a.   Occasionally,  stockholder proposals,  such as asking for reports
               and donations to the poor,  are presented in a way that appear to
               be  honest   attempts  at  bringing   up  a   worthwhile   issue.
               Nevertheless,  judgment must be exercised with care, as we do not
               expect our shareholder companies to be charitable institutions.

          b.   We are sympathetic to shareholders who are long-term holders of a
               company's stock, who desire to make concise  statements about the
               long-term  operations  of the  company  in the  proxy  statement.
               However, because regulatory agencies do not require such actions,
               we may abstain unless we believe there are compelling  reasons to
               vote for or against.

     9.   MISCELLANEOUS

          a.   Where a client has given specific direction as to how to exercise
               voting rights on its behalf,  we will vote in  accordance  with a
               client's direction.

          b.   Where we have determined that the voting of a particular proxy is
               of  limited  benefit  to  clients  or where the costs of voting a
               proxy  outweigh the benefit to clients,  we may abstain or choose
               not to vote.  Among  others,  such costs may  include the cost of
               translating a  proxy, a


                                       6

               requirement to vote in person at a shareholders meeting or if the
               process of voting  restricts  our ability to sell for a period of
               time (an opportunity cost).

          c.   For  holdings  managed   pursuant  to   quantitative,   index  or
               index-like strategies,  we may delegate the authority to exercise
               voting rights for such strategies to an independent  proxy voting
               and  research  service  with  the  direction  that  the  votes be
               exercised in  accordance  with this Policy.  If such holdings are
               also held in an actively managed  strategy,  we will exercise the
               voting  rights for the passive  holdings  according to the active
               strategy.

          d.   In certain  instances  when we do not have enough  information we
               may choose to abstain or vote against a particular Proposal.

C.   PROXY VOTING DISCLOSURE GUIDELINES

          o  Hatteras will  disclose to clients,  as required by the  Investment
             Advisers Act of 1940, how they may obtain information  about how we
             voted with respect to their securities. This disclosure may be made
             on Form ADV.

          o  Hatteras  will  disclose to clients, as required by the  Investment
             Advisers Act of 1940,  these  procedures and will furnish a copy of
             these procedures to any client upon request. This disclosure may be
             made on Form ADV.

          o  Upon  request or as required  by law or  regulation, Hatteras  will
             disclose to a client or a client's fiduciaries, the manner in which
             we exercised voting rights on behalf of the client.

          o  Upon request,  we will inform a client of our intended  vote. Note,
             however,  in some cases,  because of the  controversial nature of a
             particular proxy, our intended vote may not be available until just
             prior to  the deadline.  If the request involves a conflict  due to
             the  client's  relationship  with the  company  that has issued the
             proxy, the Chief Compliance Officer should be contacted immediately
             to ensure  adherence to Hatteras  Corporate  Governance Principles.
             (See Proxy Voting Conflict Guidelines below.)

          o  Other than as  described  herein, we will not  disclose  our voting
             intentions  or make public  statements  to any third  party (except
             electronically to our proxy vote processor or regulatory  agencies)
             including  but not limited to proxy  solicitors,  non-clients,  the
             media, or other Hatteras entities,  but we may inform  such parties
             of the  provisions  of our  Policy. We may  communicate  with other
             shareholders  regarding a  specific proposal but  will not disclose
             our  voting  intentions or agree to vote in  concert  with  another
             shareholder without approval from the Chief Compliance Officer.


                                       7

          o  Any employee, officer or director of Hatteras  receiving an inquiry
             directly from  a  company  will  notify  the  appropriate  industry
             analyst and persons responsible for voting the company's proxies.

          o  Proxy solicitors  and company  agents  will  not be  provided  with
             either our votes or the number of shares we own in a particular
             company.

          o  In  response to  a  proxy  solicitor  or  company  agent,  we  will
             acknowledge receipt  of the  proxy  materials,  inform  them of our
             intent to vote or that we have voted, but not the result of the
             vote itself.

          o  We may inform  the company (not their agent)  where we have decided
             to vote against any material resolution at their company.

          o  The Chairman of the Global Corporate  Governance  Committee and the
             applicable  Chair of the Local Corporate  Governance Committee must
             approve exceptions to this disclosure policy.

          Nothing in this policy should be  interpreted  as to prevent  dialogue
with the company and its advisers by the industry analyst, proxy voting delegate
or other appropriate senior investment personnel when a company approaches us to
discuss  governance  issues or  resolutions  they wish to include in their proxy
statement.

D.   PROXY VOTING CONFLICT GUIDELINES In addition to the Proxy Voting Disclosure
     Guidelines  above,  Hatteras has  implemented  the following  guidelines to
     address  conflicts of interests that arise in connection  with our exercise
     of voting rights on behalf of clients:

          o  Under no  circumstances will general business,  sales or  marketing
             issues influence our proxy votes.

          o  Hatteras and its  affiliates engaged in banking,  broker-dealer and
             investment  banking  activities  ("Affiliates")  have  policies  in
             place prohibiting  the  sharing of certain  sensitive  information.
             These  policies prohibit our  personnel from disclosing information
             regarding  our voting  intentions  to  any  Affiliate.  Any of  our
             personnel  involved in the proxy voting process  who are  contacted
             by an Affiliate  regarding  the  manner in which we  intend to vote
             on a specific  issue,  must  terminate the  contact and  notify the
             Chief Compliance Officer immediately.

E.   SPECIAL  DISCLOSURE  GUIDELINES FOR REGISTERED  INVESTMENT  COMPANY CLIENTS
     (INCLUDING THE FUNDS, WHICH ARE CLOSED-END FUNDS)

     1.   REGISTRATION  STATEMENT  (OPEN-END AND CLOSED-END FUNDS) MANAGEMENT IS
          RESPONSIBLE FOR ENSURING THE FOLLOWING:

          o  That  these  procedures,  which  are the  procedures  used  by  the
             investment  adviser on the Funds'  behalf,  are  described  in  the
             Statement of Additional


                                       8


             Information  (SAI).  The procedures may be described  in the SAI or
             attached as an exhibit to the registration statement.

          o  That the SAI  disclosure  includes the  procedures  that  are  used
             when a vote  presents  a conflict  between the  interests  of  Fund
             shareholders,  on the one hand;  and those of the  Funds investment
             adviser,  principal  underwriter or any affiliated  person  of  the
             Fund, its  investment  adviser  or  principal  underwriter,  on the
             other.

          o  That the SAI  disclosure states  that information regarding how the
             Fund voted proxies during  the most  recent  12-month  period ended
             June 30 is available (i) without charge,  upon request,  by calling
             a  specified  toll-free  (or collect)  telephone  number;  or on or
             through the  Fund's website,  or both; and (ii) on the Commission's
             website.  If a request for  the proxy  voting  record  is received,
             the Fund must comply  within  three  business  days by  first class
             mail. If website disclosure  is elected,  Form N-PX must be  posted
             as  soon as  reasonably  practicable  after filing  the report with
             the Commission,  and must  remain available on the website  as long
             as the Fund discloses that it its available on the website.

     2.   SHAREHOLDER  ANNUAL AND  SEMI-ANNUAL  REPORT  (OPEN-END AND CLOSED-END
          FUNDS) Management is responsible for ensuring the following:

          o  That each Fund's  shareholder  report  contain  a statement  that a
             description  of these  procedures is available  (i) without charge,
             upon request,  by calling a toll-free  or collect telephone number;
             (ii) on  the  Fund's  website,  if  applicable;  and  (iii)  on the
             Commission's website.  If a request for the proxy voting  record is
             received, the Fund must comply within three  business days by first
             class mail.

          o  That the report contain a statement that  information regarding how
             the Fund voted proxies during the most recent 12-month period ended
             June 30 is available (i) without charge,  upon request,  by calling
             a  specified  toll-free  (or collect)  telephone  number;  or on or
             through the Fund's website,  or both;  and (ii) on the Commission's
             website. If a request for the proxy voting record is received,  the
             Fund must comply  within three  business  days by first class mail.
             If website disclosure is elected,  Form N-PX must be posted as soon
             as   reasonably  practicable  after  filing  the  report  with  the
             Commission, and must remain available on the website as long as the
             Fund discloses that it its available on the website.

     3.   FORM  N-CSR  (CLOSED-END  FUND  ANNUAL  REPORTS  ONLY)  Management  is
          responsible for ensuring the following:

          o  That  these  procedures  are  described  in Form N-CSR.  In lieu of
             describing the  procedures,  a copy of  these procedures may simply
             be included with the


                                       9


             filing,  however,  The SEC's  preference is  that the procedures be
             included directly in Form N-CSR and  not attached as an  exhibit to
             the N-CSR filing.

          o  That the  N-CSR  disclosure  includes the procedures that are used
             when  a vote  presents  a conflict  between the  interests  of Fund
             shareholders,  on the one hand;  and those of the Funds' investment
             adviser,  principal  underwriter or  any affiliated  person  of the
             Fund,  its  investment  adviser or principal  underwriter,  on  the
             other.

     4.   FORM N-PX  (OPEN-END AND CLOSED-END  FUNDS)  Management is responsible
          for ensuring the following:

          o  That each Fund  files its  complete  proxy  voting  record  on Form
             N-PX  for the  12 month  period  ended  June 30  by no  later  than
             August 31 of each year.

          o  Fund  management is  responsible for reporting to the  Funds' Chief
             Compliance  Officer any material  issues  that arise  in connection
             with the voting  of Fund  proxies or  the  preparation,  review and
             filing of the Funds' Form N-PX.

     5.   OVERSIGHT OF DISCLOSURE The Funds' Chief  Compliance  Officer shall be
          responsible for ensuring that the required disclosures listed in these
          procedures  are  implemented  and  complied  with.  The  Funds'  Chief
          Compliance Officer shall recommend to each Fund's Board any changes to
          these  policies  and  procedures  that he or she  deems  necessary  or
          appropriate  to ensure the Funds'  compliance  with  relevant  federal
          securities laws.


                                       10



ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not yet applicable.



ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT
        COMPANY AND AFFILIATED PURCHASERS.

Not applicable.



ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There have been no material  changes to the procedures by which the shareholders
may  recommend  nominees to the  registrant's  board of  directors,  where those
changes were  implemented  after the  registrant  last  provided  disclosure  in
response to the  requirements  of Item  7(d)(2)(ii)(G)  of Schedule  14A (17 CFR
240.14a-101), or this Item.


ITEM 11. CONTROLS AND PROCEDURES.

     (a)  The registrant's principal executive and principal financial officers,
          or persons  performing  similar  functions,  have  concluded  that the
          registrant's  disclosure  controls and  procedures (as defined in Rule
          30a-3(c)  under the  Investment  Company Act of 1940,  as amended (the
          "1940 Act") (17 CFR 270.30a-3(c))) are effective,  as of a date within
          90 days of the filing date of the


          report that includes the disclosure required by this paragraph,  based
          on their evaluation of these controls and procedures  required by Rule
          30a-3(b) under the 1940 Act (17 CFR  270.30a-3(b)) and Rules 13a-15(b)
          or 15d-15(b) under the Securities Exchange Act of 1934, as amended (17
          CFR 240.13a-15(b) or 240.15d-15(b)).


     (b)  There  were no  changes  in the  registrant's  internal  control  over
          financial  reporting (as defined in Rule  30a-3(d)  under the 1940 Act
          (17 CFR  270.30a-3(d))  that occurred during the  registrant's  second
          fiscal  half-year  of the  period  covered  by this  report  that  has
          materially affected, or is reasonably likely to materially affect, the
          registrant's internal control over financial reporting.


ITEM 12. EXHIBITS.

     (a)(1)   Code of ethics,  or any amendment thereto,  that is the subject of
              disclosure required by Item 2 is attached hereto.

     (a)(2)   Certifications  pursuant to Rule  30a-2(a)  under the 1940 Act and
              Section 302 of the Sarbanes-Oxley Act of 2002 are
              attached hereto.

     (a)(3)   Not applicable.


     (b)      Not applicable.



                                   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)      Hatteras Master Fund, L.P.
            --------------------------------------------------------------

By (Signature and Title)*  /s/ David B. Perkins
                         -------------------------------------------------
                           David B. Perkins, Chief Executive Officer
                           (principal executive officer)

Date     June 3, 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/ David B. Perkins
                         -------------------------------------------------
                           David B. Perkins, Chief Executive Officer
                           (principal executive officer)

Date     June 3, 2005
    ----------------------------------------------------------------------


By (Signature and Title)*  /s/ J. Michael Fields
                         -------------------------------------------------
                           J. Michael Fields,  Chief Financial  Officer
                           (principal financial officer)

Date     June 3, 2005
    ----------------------------------------------------------------------



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