UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                   FORM N-CSR

                   CERTIFIED SHAREHOLDER REPORT OF REGISTERED
                        MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-00082
                                   ---------

                                   CGM TRUST
- --------------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)

              One International Place, Boston, Massachusetts 02110
- --------------------------------------------------------------------------------
            (Address of principal executive offices)        (Zip code)

                              T. John Holton, Esq.
                             Bingham McCutchen LLP
                               One Federal Street
                                Boston, MA 02110
- --------------------------------------------------------------------------------
                    (Name and address of agent for service)

Registrant's telephone number, including area code: 1-617-737-3225
                                                    --------------

Date of fiscal year end:  December 31, 2008
                          -----------------
Date of reporting period: December 31, 2008
                          -----------------


ITEM 1. REPORTS TO STOCKHOLDERS.

CGM
MUTUAL FUND

79th Annual Report
December 31, 2008

A No-Load Fund

[logo] Investment Adviser
       CAPITAL GROWTH MANAGEMENT
       Limited Partnership

TO OUR SHAREHOLDERS:
- -------------------------------------------------------------------------------

CGM Mutual Fund declined -17.6% during the fourth quarter of 2008 compared to
the unmanaged Standard and Poor's 500 Index which fell -21.9% and the Merrill
Lynch U.S. Corporate, Government and Mortgage Bond Index which returned 5.1%.
For the year just ended, CGM Mutual Fund returned -28.2%, the S&P 500 Index,
- -37.0% and the Merrill Lynch U.S. Corporate, Government and Mortgage Bond
Index, 6.2%.

THE YEAR IN REVIEW AND ECONOMIC OUTLOOK
In December, the National Bureau of Economic Research announced the U.S.
economy had, in fact, entered a recession twelve months earlier in December of
2007. To anyone in the homebuilding, banking, retail or investment banking
businesses, this came as no surprise ...

In the first quarter of 2008, Bear Stearns became the first victim of what was
to become a rapidly unfolding financial meltdown. J.P. Morgan purchased the
venerable investment house for a mere $10 per share and the government absorbed
some $29 billion of its mortgage backed securities. Although the Federal
Reserve Board had locked its sights on the housing market as early as August of
2007 when it began reducing the Federal Discount rate, in early 2008 the
government ratcheted up its efforts to counter plummeting home prices and
slowing consumer sales by proposing a $150 billion stimulus program which was
disbursed in May, June and July. By mid-year, the economy's prognosis was
improving as promising trends in trade, agriculture, energy and commodities
combined with fairly aggressive monetary policy and fiscal incentives pointed
to recovery. But, in a case of too much of a good thing, the price of crude oil
then skyrocketed to $147 per barrel, up from $70 one year earlier. Still, it
looked as though the government stimulus package was helping consumers absorb
the resulting $4.00 per gallon cost of gasoline and though the Fed continued to
mention inflation as an ongoing risk, the unemployment rate remained a
relatively low 5.5% in June. July's durable goods orders were up 1.3% and the
Consumer Confidence Index which had taken a hit the month before rebounded to
56.9 in August from 51.9 in July. September, however, was an altogether
different story.

On September 7, the federal government seized Freddie Mac and Fannie Mae, the
primary buyers of mortgages in the U.S. On September 10, Lehman Brothers
announced a $3.9 billion loss for the previous quarter. One week later, the
government agreed to loan American International Group $85 billion (later
increased to $150 billion) claiming AIG was "too big to fail." Lehman was left
to fend for itself and unable to find a buyer, fell victim to the crisis. Other
financial institutions sought assistance and the few remaining large
independent brokerage firms either merged with commercial banks or registered
as bank holding companies. Grudgingly, Congress approved the Troubled Asset
Relief Program (TARP) to the tune of $700 billion dollars, the first $350
billion of which largely went to shore up balance sheets throughout the banking
system. In early November, General Motors announced sales figures for October
were a full 45% lower than those of October 2007. GM principally blamed frozen
credit markets and its CEO along with the head of the UAW and leaders of the
other two major U.S. automobile firms took their case to Congress pleading for
billions of dollars in government loans. Congress excoriated the CEOs for
arriving from Detroit on separate private jets and seemed more interested in
executive compensation than in company overhead and labor costs versus the
competition. As the high drama was unfolding in Washington, the S&P 500
declined to 752.44 on November 20, 2008, down 52% from its all-time high
reached a little more than a year earlier in October 2007. The auto executives
were sent home empty-handed and told to return (via other transport) with
detailed plans for survival in a new, leaner environment. Two weeks later,
Detroit's CEOs made the return trip to the Capitol with plans in hand, but to
no avail: Congress did not approve their loans. Then, on December 19, the White
House intervened and allocated $17 billion in TARP funds to Chrysler and
General Motors in an effort to avert their bankruptcy. As a condition of the
loans, the companies must demonstrate financial viability by March 31, 2009.
Widespread doubt that loans to the auto companies will do anything more than
just kick the problem further down the road along with other factors weighed
heavily on the Consumer Confidence Index pushing it to 38 in December, the
lowest point in its 41-year history (and down from 90 just one year ago).

The year 2008 will figure prominently in economic history books as a year of
dramatic easing of monetary policy, starting with a Federal Funds rate of 4.25%
on January 1 (down from 5.25% in August 2007) to a low of 0% announced on
December 16, 2008 (described as a range of 0% to .25% given the difficulty of
managing a zero cost of money). Announcement of the latest cut promptly sank
the 10-year government bond to 2.12%, its lowest yield since 1951. Add to the
Fed's efforts the recent plunge in the price of oil to $40 per barrel which
translates into gasoline at less than $2.00 per gallon and money should make
its way back into the consumer's pocket.

For nearly sixteen months, the Fed, the Treasury Department and Congress have
done yeoman's duty in an effort to restore confidence, increase liquidity in
the financial system and rejuvenate the economy. We believe we are headed in
the right direction though it will take some time--possibly the better part of
2009 or longer--to squeeze remaining toxic debt out of the system.

PORTFOLIO STRATEGY
CGM Mutual Fund entered 2008 with substantial investments in companies
benefiting from strong commodity prices driven by growth in emerging economies.
The Fund had major holdings in agricultural, steel, oil service, oil and gas,
and mining stocks. These stocks were sold as the global economy dove into
recession during the second half of the year and proceeds were invested in
financial and economically defensive companies, including biotech, medical
supplies and consumer staples. We established a large position in bank stocks
which we sold when better opportunities appeared elsewhere.

Almost all our holdings declined in price in 2008. The largest losses occurred
in energy, agricultural, bank and automotive stocks.

The fixed income section of the portfolio, which averaged 26% of the Fund's
assets throughout the year, was 100% invested in Treasury Bills during the
first nine months of the year. In October, we moved all of the fixed income
section into investment grade corporate bonds and most experienced significant
appreciation over the remainder of the year.

On December 31, 2008, CGM Mutual Fund remained approximately 26% invested in
corporate bonds. In the equity portion of the portfolio, the three largest
positions at year end were in the drug, hospital supply and metals and mining
industries. The Fund's three largest stock holdings were Agnico-Eagle Mines
Limited, Teva Pharmaceutical Industries Limited ADR and C.R. Bard, Inc.
(hospital supply).

              /s/ Robert L. Kemp

                  Robert L. Kemp
                  President

              /s/ G. Kenneth Heebner

                  G. Kenneth Heebner
                  Portfolio Manager

January 2, 2009

COMPARISONS OF CHANGE IN VALUE OF $10,000 INVESTMENT IN CGM MUTUAL FUND, THE
UNMANAGED S&P 500 INDEX, AND THE MERRILL LYNCH U.S. CORPORATE, GOVERNMENT AND
MORTGAGE BOND INDEX assuming reinvestment of dividends and capital gains

- ----------------------------
      CGM MUTUAL FUND
Average Annual Total Returns
      through 12/31/08
- ----------------------------
1 year    5 year    10 year
- -28.2%      5.9%      3.8%
- ----------------------------
   Past performance is no
indication of future results
- ----------------------------

                                 Unmanaged             Merrill Lynch
                    CGM           S&P 500       U.S. Corporate, Government
                Mutual Fund        Index          and Mortgage Bond Index
      --------------------------------------------------------------------

      1998        $10,000         $10,000                 $10,000
      1999         12,050          12,100                   9,900
      2000         10,652          10,999                  11,058
      2001          9,416           9,690                  11,976
      2002          7,825           7,549                  13,222
      2003         10,932           9,716                  13,764
      2004         12,124          10,775                  14,356
      2005         13,894          11,303                  14,729
      2006         14,658          13,089                  15,289
      2007         20,301          13,809                  16,390
      2008         14,576           8,700                  17,406

CGM MUTUAL FUND
PORTFOLIO MANAGER
- -------------------------------------------------------------------------------
G. Kenneth Heebner has managed CGM Mutual Fund since 1981. In 1990, Mr. Heebner
founded Capital Growth Management Limited Partnership with Robert L. Kemp.
Prior to establishing the new company, Mr. Heebner was at Loomis, Sayles and
Company where he managed the Fund, then known as Loomis-Sayles Mutual Fund. In
addition to CGM Mutual Fund, Mr. Heebner currently manages CGM Realty Fund and
CGM Focus Fund.

- -------------------------------------------------------------------------------
See the Schedule of Investments on pages 4 and 5 for the percentage of net
assets of the Fund invested in particular industries as of December 31, 2008.

INVESTMENT PERFORMANCE
(unaudited)
- -------------------------------------------------------------------------------
Cumulative Total Return for Periods Ended
December 31, 2008

                                                                       CGM
                                                                   MUTUAL FUND
                                                                   -----------
10 Years .......................................................      +45.8%
 5 Years .......................................................      +33.3
 1 Year ........................................................      -28.2
 3 Months ......................................................      -17.6

The performance data contained in the report represent past performance, which
is no guarantee of future results. The graph and table above do not reflect the
deduction of taxes a shareholder would pay on Fund distributions or the
redemption of Fund shares and assume the reinvestment of all Fund
distributions. The investment return and the principal value of an investment
in the Fund will fluctuate so that investors' shares, when redeemed, may be
worth more or less than their original cost. Current performance may be lower
or higher than the performance data quoted.

Commencing July 1, 2003 and ending June 30, 2004, Capital Growth Management
agreed to voluntarily waive a portion of the management fee, lowering the
annual rate to 0.72% of the Fund's average daily net assets. Otherwise, the
cumulative total return and the average annual total return for the 10- and
5-year periods ended December 31, 2008 would have been lower.


                                                 CGM MUTUAL FUND
- ----------------------------------------------------------------------------------------------------------------

INVESTMENTS AS OF DECEMBER 31, 2008

COMMON STOCKS -- 72.3% OF TOTAL NET ASSETS


                                                                                       SHARES         VALUE(a)
                                                                                       ------         --------
                                                                                              
BANKS - MONEY CENTER -- 3.9%
  Morgan Stanley ...............................................................       1,200,000    $ 19,248,000
                                                                                                    ------------
BEVERAGES AND TOBACCO -- 4.9%
  Philip Morris International Inc. .............................................         550,000      23,930,500
                                                                                                    ------------
BIOTECHNOLOGY -- 5.1%
  Biogen Idec Inc. (b) .........................................................         520,000      24,767,600
                                                                                                    ------------
CONSUMER STAPLES -- 4.7%
  CVS Caremark Corporation .....................................................         800,000      22,992,000
                                                                                                    ------------
DRUGS -- 18.2%
  Abbott Laboratories ..........................................................         480,000      25,617,600
  Cephalon, Inc. (b) ...........................................................         330,000      25,423,200
  Genzyme Corporation (b) ......................................................         170,000      11,282,900
  Teva Pharmaceutical Industries Limited ADR (c) ...............................         633,600      26,972,352
                                                                                                    ------------
                                                                                                      89,296,052
                                                                                                    ------------
HOME PRODUCTS AND COSMETIC -- 4.8%
  Colgate-Palmolive Company ....................................................         340,000      23,303,600
                                                                                                    ------------
HOSPITAL SUPPLY -- 15.0%
  Baxter International Inc. ....................................................         450,000      24,115,500
  Becton, Dickinson and Company ................................................         340,000      23,252,600
  C.R. Bard, Inc. ..............................................................         310,000      26,120,600
                                                                                                    ------------
                                                                                                      73,488,700
                                                                                                    ------------
HOTELS AND RESTAURANTS -- 5.3%
  McDonald's Corporation .......................................................         420,000      26,119,800
                                                                                                    ------------
METALS AND MINING -- 10.4%
  Agnico-Eagle Mines Limited (d) ...............................................         540,000      27,718,200
  Goldcorp Inc. (d) ............................................................         740,000      23,332,200
                                                                                                    ------------
                                                                                                      51,050,400
                                                                                                    ------------
TOTAL COMMON STOCKS (Identified cost $366,035,023) .............................................     354,196,652
                                                                                                    ------------

BONDS -- 26.0% OF TOTAL NET ASSETS


                                                                                        FACE
                                                                                       AMOUNT
                                                                                       ------
                                                                                              
DIVERSIFIED FINANCIAL SERVICES -- 5.4%
  General Electric Company, 6.75%, 03/15/2032 ..................................    $ 25,000,000      26,580,650
                                                                                                    ------------
HEALTHCARE - SERVICES -- 0.4%
  UnitedHealth Group Incorporated, 6.875%, 02/15/2038 ..........................       2,000,000       1,751,220
                                                                                                    ------------
MEDIA -- 4.3%
  AOL Time Warner Inc., 7.700%, 5/01/2032 ......................................      10,000,000      10,012,330
  Comcast Corporation, 5.700%, 05/15/2018 ......................................      10,000,000       9,378,080
  Viacom Inc., 7.875%, 07/30/2030 ..............................................       3,000,000       1,880,529
                                                                                                    ------------
                                                                                                      21,270,939
                                                                                                    ------------
OIL REFINING -- 3.0%
  Valero Energy Corporation, 6.625%, 06/15/2037 ................................      20,000,000      14,710,060
                                                                                                    ------------
PHARMACEUTICALS -- 6.6%
  Bristol-Myers Squibb Company, 6.125%, 05/01/2038 .............................       9,000,000       9,883,431
  GlaxoSmithKline plc, 6.375%, 05/15/2038 ......................................      20,000,000      22,596,700
                                                                                                    ------------
                                                                                                      32,480,131
                                                                                                    ------------
RETAIL -- 1.9%
  Target Corporation, 7.00%, 01/15/2038 ........................................      10,000,000       9,267,950
                                                                                                    ------------
TELECOMMUNICATIONS -- 4.4%
  AT&T Corp., 6.400%, 05/15/2038 ...............................................      20,000,000      21,423,620
                                                                                                    ------------
TOTAL BONDS (Identified cost $104,148,759) .....................................                     127,484,570
                                                                                                    ------------
SHORT-TERM INVESTMENT -- 1.2% OF TOTAL NET ASSETS
  American Express Credit Corporation, 0.01%, 01/02/09 (Cost $5,925,000) .......       5,925,000       5,925,000
                                                                                                    ------------

TOTAL INVESTMENTS -- 99.5% (Identified cost $476,108,782) ......................................     487,606,222
  Cash and receivables .........................................................................      12,111,298
  Liabilities ..................................................................................      (9,830,165)
                                                                                                    ------------
TOTAL NET ASSETS -- 100.0% .....................................................................    $489,887,355
                                                                                                    ============

(a) See notes 1A and 5.
(b) Non-income producing security.
(c) An American Depositary Receipt (ADR) is a certificate issued by a U.S. bank representing the right to
    receive securities of the foreign issuer described. The values of ADRs are significantly influenced by
    trading on exchanges not located in the United States or Canada.
(d) The Fund has approximately 10.4% of its net assets at December 31, 2008 invested in companies incorporated
    in Canada.

                                 See accompanying notes to financial statements.


                                CGM MUTUAL FUND
- -------------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES

December 31, 2008

ASSETS
Investments at value (Identified cost -- $476,108,782) ........    $487,606,222
Cash ..........................................................           4,623
Receivable for:
  Securities sold ...............................   $ 7,585,977
  Shares of the Fund sold .......................     1,785,701
  Dividends and interest ........................     2,734,997      12,106,675
                                                    -----------    ------------
      Total assets ............................................     499,717,520
                                                                   ------------
LIABILITIES
Payable for:
  Securities purchased ..........................     7,471,263
  Shares of the Fund redeemed ...................     1,419,268
  Tax withholding liability .....................       104,530
  Distributions declared ........................       301,390       9,296,451
                                                    -----------
Accrued expenses:
  Management fees ...............................       355,873
  Trustees' fees ................................        13,610
  Accounting, administration and compliance
   expenses .....................................         9,019
  Transfer agent fees ...........................        90,058
  Other expenses ................................        65,154         533,714
                                                    -----------    ------------
      Total liabilities .......................................       9,830,165
                                                                   ------------
NET ASSETS ....................................................    $489,887,355
                                                                   ============

Net Assets consist of:
  Capital paid-in .............................................    $604,031,753
  Accumulated net realized losses on investments ..............    (125,641,838)
  Net unrealized appreciation on investments ..................      11,497,440
                                                                   ------------
NET ASSETS ....................................................    $489,887,355
                                                                   ============

Shares of beneficial interest outstanding, no par value .......      21,715,457
                                                                   ============
Net asset value per share* ....................................          $22.56
                                                                         ======

* Shares of the Fund are sold and redeemed at net asset value
  ($489,887,355 / 21,715,457).

                See accompanying notes to financial statements.

                                CGM MUTUAL FUND
- -------------------------------------------------------------------------------

STATEMENT OF OPERATIONS

Year Ended December 31, 2008

INVESTMENT INCOME
Income:
  Dividends (net of withholding tax of $390,753) ............     $   8,155,282
  Interest ..................................................         4,705,562
                                                                  -------------
                                                                     12,860,844
                                                                  -------------

Expenses:
  Management fees ...........................................         5,348,189
  Trustees' fees ............................................            55,780
  Accounting, administration and compliance expenses ........           108,231
  Custodian fees and expenses ...............................           120,690
  Transfer agent fees .......................................           520,744
  Audit and tax services ....................................            41,150
  Legal .....................................................            18,191
  Printing ..................................................            79,374
  Registration fees .........................................            47,836
  Miscellaneous expenses ....................................             2,279
                                                                  -------------
                                                                      6,342,464
                                                                  -------------
Net investment income .......................................         6,518,380
                                                                  -------------

REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
 AND FOREIGN CURRENCY TRANSACTIONS
  Net realized losses on investments and foreign
   currency transactions ....................................      (121,834,635)
  Net unrealized depreciation ...............................       (80,610,010)
                                                                  -------------
  Net realized and unrealized losses on investments
   and foreign currency transactions ........................      (202,444,645)
                                                                  -------------
CHANGE IN NET ASSETS FROM OPERATIONS ........................     $(195,926,265)
                                                                  =============

                See accompanying notes to financial statements.


                                                   CGM MUTUAL FUND
- ---------------------------------------------------------------------------------------------------------------------

STATEMENT OF CHANGES IN NET ASSETS


                                                                                           YEAR ENDED DECEMBER 31,
                                                                                       ------------------------------
                                                                                            2008             2007
                                                                                       -------------     ------------
FROM OPERATIONS
                                                                                                   
  Net investment income ...........................................................    $   6,518,380     $  5,676,497
  Net realized gains (losses) on investments and foreign currency transactions ....     (121,834,635)     105,202,070
  Net unrealized appreciation (depreciation) ......................................      (80,610,010)      72,232,962
                                                                                       -------------     ------------
    Change in net assets from operations ..........................................     (195,926,265)     183,111,529
                                                                                       -------------     ------------
FROM DISTRIBUTIONS TO SHAREHOLDERS
  Net investment income ...........................................................       (6,501,796)      (5,654,129)
  Net short-term realized capital gains on investments ............................               --     (107,051,605)
  Net long-term realized capital gains on investments .............................               --       (1,480,849)
                                                                                       -------------     ------------
                                                                                          (6,501,796)    (114,186,583)
                                                                                       -------------     ------------
FROM CAPITAL SHARE TRANSACTIONS
  Proceeds from sale of shares ....................................................      130,222,450       35,748,635
  Net asset value of shares issued in connection with reinvestment of:
    Dividends from net investment income ..........................................        5,749,772        5,009,085
    Distributions from net short-term realized capital gains on investments .......               --       97,226,898
    Distributions from net long-term realized capital gains on investments ........               --        1,345,083
                                                                                       -------------     ------------
                                                                                         135,972,222      139,329,701
  Cost of shares redeemed .........................................................      (91,779,247)     (64,706,440)
                                                                                       -------------     ------------
    Change in net assets derived from capital share transactions ..................       44,192,975       74,623,261
                                                                                       -------------     ------------
  Total change in net assets ......................................................     (158,235,086)     143,548,207

NET ASSETS
  Beginning of period .............................................................      648,122,441      504,574,234
                                                                                       -------------     ------------
  End of period ...................................................................    $ 489,887,355     $648,122,441
                                                                                       =============     ============
NUMBER OF SHARES OF THE FUND:
  Issued from sale of shares ......................................................        4,444,761        1,056,385
  Issued in connection with reinvestment of:
    Dividends from net investment income ..........................................          223,864          155,722
    Distributions from net short-term realized capital gains on investments .......               --        3,055,528
    Distributions from net long-term realized capital gains on investments ........               --           42,272
                                                                                       -------------     ------------
                                                                                           4,668,625        4,309,907
  Redeemed ........................................................................       (3,337,513)      (2,088,140)
                                                                                       -------------     ------------
  Net change ......................................................................        1,331,112        2,221,767
                                                                                       =============     ============

                                  See accompanying notes to financial statements.



                                                       CGM MUTUAL FUND
- ----------------------------------------------------------------------------------------------------------------------------

FINANCIAL HIGHLIGHTS


                                                                               FOR THE YEAR ENDED DECEMBER 31,
                                                                 -----------------------------------------------------------
                                                                   2008        2007        2006          2005          2004
                                                                                                      
For a share of the Fund outstanding throughout each period:

Net asset value at the beginning of period ................       $31.80      $27.78      $27.89        $25.33        $23.00
                                                                 -------     -------     -------       -------       -------
Net investment income (a)(b) ..............................         0.31        0.32        0.45          0.30          0.16
Net realized and unrealized gains (losses) on investments
  and foreign currency transactions .......................        (9.25)      10.33        1.09          3.40          2.33
                                                                 -------     -------     -------       -------       -------
Total from investment operations ..........................        (8.94)      10.65        1.54          3.70          2.49
                                                                 -------     -------     -------       -------       -------

Dividends from net investment income ......................        (0.30)      (0.33)      (0.45)        (0.31)        (0.16)
Distribution from net short-term realized gains ...........         0.00       (6.22)      (1.20)           --            --
Distribution from net long-term realized gains ............         0.00       (0.08)         --         (0.83)           --
                                                                 -------     -------     -------       -------       -------
Total distributions .......................................        (0.30)      (6.63)      (1.65)        (1.14)        (0.16)
                                                                 -------     -------     -------       -------       -------

Net increase (decrease) in net asset value ................        (9.24)       4.02      (0.11)          2.56          2.33
                                                                 -------     -------     -------       -------       -------
Net asset value at end of period ..........................       $22.56      $31.80      $27.78        $27.89        $25.33
                                                                 =======     =======     =======       =======       =======
Total return (%) ..........................................        (28.2)       38.5         5.5          14.6          10.9(c)

Ratios:
Operating expenses to average net assets (%) ..............         1.05        1.05        1.07          1.09          1.02
Operating expenses to average net assets before
  management fee waiver (%) ...............................          N/A         N/A         N/A           N/A          1.11
Net investment income to average net assets (%) ...........         1.07        1.03        1.55          1.09          0.68
Portfolio turnover (%) ....................................          466         444         504           336           314
Net assets at end of period (in thousands) ($) ............      489,887     648,122     504,574       514,612       481,443

(a) Net of management fee waiver which amounted to ($).....          N/A         N/A         N/A           N/A          0.02
(b) Per share net investment income has been calculated using the average shares outstanding during the period.
(c) The total return would have been lower had the management fee not been reduced during the period.

                                       See accompanying notes to financial statements.


                                CGM MUTUAL FUND
- -------------------------------------------------------------------------------

NOTES TO FINANCIAL STATEMENTS -- DECEMBER 31, 2008

1.  The Fund is a diversified series of CGM Trust which is organized as a
Massachusetts business trust under the laws of Massachusetts pursuant to an
Agreement and Declaration of Trust. The Trust is registered under the
Investment Company Act of 1940 as an open-end management investment company.
The Trust has two other Funds whose financial statements are not presented
herein. The Fund commenced operations on November 5, 1929. The Fund's objective
is reasonable long-term capital appreciation with a prudent approach to
protection of capital from undue risks. Current income is a consideration in
the selection of the Fund's portfolio securities, but it is not a controlling
factor.

The following is a summary of significant accounting policies consistently
followed by the Fund in the preparation of its financial statements. The
preparation of financial statements in accordance with accounting principles
generally accepted in the United States of America requires management to make
estimates and assumptions that affect the reported amounts and disclosures in
the financial statements. Actual results could differ from those estimates.

A.  SECURITY VALUATION -- Equity securities are valued on the basis of
    valuations furnished by a pricing service, authorized by the Board of
    Trustees. Equity securities listed or regularly traded on a securities
    exchange or in the over-the-counter (OTC) market are valued at the last
    quoted sale price or, for certain markets, the official closing price at
    the time the valuations are made. A security that is listed or traded on
    more than one exchange is valued at the quotation on the exchange
    determined to be the primary market for such security. For securities with
    no sale reported, the last reported bid price is used. Corporate debt
    securities are valued on the basis of valuations furnished by a pricing
    service, authorized by the Board of Trustees, which determines valuations
    for normal, institutional-size trading units of such securities using
    market information, transactions for comparable securities and various
    relationships between securities which are generally recognized by
    institutional traders. United States government debt securities are valued
    at the current closing bid, as last reported by a pricing service approved
    by the Board of Trustees. Short-term investments having a maturity of sixty
    days or less are stated at amortized cost, which approximates value. Other
    assets and securities which are not readily marketable will be valued in
    good faith at fair value using methods determined by the Board of Trustees.

B.  SECURITY TRANSACTIONS AND RELATED INVESTMENT INCOME -- Security
    transactions are accounted for on the trade date (date the order to buy or
    sell is executed) and dividend income is recorded on the ex-dividend date
    net of applicable foreign taxes. Interest income is recorded on an accrual
    basis and includes amortization of premium and discount. Net gain or loss
    on securities sold is determined on the identified cost basis. Dividend
    payments received by the Fund from its investment in REITs may be comprised
    of ordinary income, capital gains, and return of capital and as such are
    recorded as dividend income, capital gains or a reduction to security cost,
    as appropriate.

C.  FEDERAL INCOME TAXES -- It is the Fund's policy to comply with the
    requirements of the Internal Revenue Code applicable to regulated
    investment companies, and to distribute to its shareholders all of its
    taxable income and net realized capital gains, within the prescribed time
    period. Accordingly, no provision for federal income tax has been made. The
    Fund adopted the provisions of the Financial Accounting Standards Board
    ("FASB") Interpretation No. 48, Accounting for Uncertainty in Income Taxes,
    an interpretation of FASB Statement 109 ("FIN 48"), on January 1, 2007.
    FIN 48 prescribes a minimum threshold for financial statement recognition
    of the benefit of a tax position taken or expected to be taken in a tax
    return. The implementation of FIN 48, which included a review of the Fund's
    tax return of each of the three open tax years, did not result in any
    unrecognized tax benefits in the accompanying financial statements.
    Management's conclusion regarding FIN 48 may be subject to review and
    adjustment at a later date based on factors including, ongoing analysis of
    tax laws, regulations and interpretations thereof.

    At December 31, 2008, the Fund had available for tax purposes, capital loss
    carry overs of $124,560,675 expiring December 31, 2016.

    As of December 31, 2008, the components of distributable earnings on a tax
    basis were as follows:

     UNDISTRIBUTED       UNDISTRIBUTED LONG-TERM           NET UNREALIZED
    ORDINARY INCOME           CAPITAL GAINS         APPRECIATION/(DEPRECIATION)
    ---------------      -----------------------    ---------------------------
          $--                      $--                      $10,416,277

    The identified cost of investments in securities owned by the Fund for
    federal income tax purposes, and their respective gross unrealized
    appreciation and depreciation at December 31, 2008 was as follows:

                        GROSS UNREALIZED     GROSS UNREALIZED     NET UNREALIZED
    IDENTIFIED COST       APPRECIATION         DEPRECIATION        APPRECIATION
    ---------------     ----------------     ----------------     --------------
      $477,189,945         $34,558,278         $(24,142,001)        $10,416,277

D.  DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- Dividends and distributions
    are recorded by the Fund on the ex-dividend date. The classification of
    income and capital gains distributions is determined in accordance with
    income tax regulations. Distributions from net investment income and
    short-term capital gains are treated as ordinary income for income tax
    purposes. Permanent book and tax differences relating to shareholder
    distributions may result in reclassifications to paid-in capital or
    accumulated realized gain/loss. These differences are primarily related to
    foreign exchange gains/losses. The Fund also utilized earnings and profits
    distributed to shareholders on redemption of shares as a part of the
    dividend deduction for income tax purposes. Undistributed net investment
    income or accumulated net investment loss may include temporary book and
    tax differences such as tax deferral of losses on wash sales, which will
    reverse in a subsequent period. Any taxable income or gain remaining at
    fiscal year end is distributed in the following year.

    The tax character of distributions paid during the periods ended December
    31, 2008 and 2007, were as follows:

                                       LONG-TERM
    YEAR      ORDINARY INCOME        CAPITAL GAINS             TOTAL
    ----      ---------------        -------------             -----
    2008        $  6,501,796           $       --          $  6,501,796
    2007        $112,705,734           $1,480,849          $114,186,583

E.  FOREIGN CURRENCY TRANSLATION -- All assets and liabilities initially
    expressed in terms of foreign currencies are translated into U.S. dollars.
    Transactions affecting statement of operations accounts and net realized
    gain/(loss) on investments are translated at the rates prevailing at the
    dates of the transactions. The Fund does not isolate that portion of the
    results of operations resulting from changes in foreign exchange rates on
    investments from the fluctuations arising from changes in market prices of
    securities held. Such fluctuations are included with the net realized and
    unrealized gain or loss from investments. Reported net realized foreign
    exchange gains or losses arise from sales of foreign currency, currency
    gains or losses realized between the trade and settlement dates on
    securities transactions and the difference between the amounts of
    dividends, interest, and foreign withholding taxes recorded on the Fund's
    books and the U.S. dollar equivalent of the amounts actually received or
    paid. Net unrealized foreign exchange gains or losses arise from changes in
    the value of assets and liabilities other than investments in securities at
    the end of the period, resulting from changes in the exchange rate.

F.  INDEMNITIES -- In the normal course of business, the Fund may enter into
    contracts that provide indemnities to third parties for various potential
    losses and claims. The Fund's maximum exposure under these arrangements is
    unknown as this would depend on future claims that may be made against the
    Fund. The risk of material loss from such claims is considered remote.

2.  RISKS AND UNCERTAINTIES

    A.  RISKS ASSOCIATED WITH FOCUSED INVESTING -- The Fund, although
        diversified, may take a focused approach to investing within particular
        industries or sectors of the economy or in a relatively small number of
        individual holdings. Therefore, the Fund may be subject to greater
        price volatility and may be more adversely affected by the performance
        of particular industries, sectors, or individual holdings than would a
        more diversified fund. In addition, funds that invest more heavily in
        certain industries, sectors or individual holdings are particularly
        susceptible to the impact of market, economic, regulatory and other
        factors affecting those investments.

    B.  RISKS ASSOCIATED WITH FOREIGN INVESTMENTS -- The Fund may invest in
        securities issued by institutions, corporations and governments
        established by or located in foreign countries, which may be developed
        or undeveloped countries. Investing in foreign securities may involve
        significant risks. For example, there is generally less publicly
        available information about foreign companies, particularly those not
        subject to the disclosure and reporting requirements of the U.S.
        securities laws. Foreign issuers are generally not bound by uniform
        accounting, auditing, and financial reporting requirements and
        standards of practice comparable to those applicable to domestic
        issuers. Investments in foreign securities also involve the risk of
        possible adverse changes in investment or exchange control regulations,
        expropriation or confiscatory taxation, limitation on the removal of
        the Fund or other assets of the Fund, political or financial
        instability or diplomatic and other developments which could affect
        such investments. Foreign stock markets, while growing in volume and
        sophistication, are generally not as developed as those in the United
        States, and securities of some foreign issuers (particularly those
        located in developing countries) may be less liquid and more volatile
        than securities of comparable U.S. companies. In general, there is less
        overall governmental supervision and regulation of foreign securities
        markets, broker-dealers and issuers than in the United States.
        Additionally, because some foreign securities the Fund may acquire are
        purchased with and payable in foreign currencies, the value of these
        assets as measured in U.S. dollars may be affected favorably or
        unfavorably by changes in currency rates and exchange control
        regulations.

The Fund's Prospectus and Statement of Additional Information contain
additional information on other risks and uncertainties relating to the Fund's
investments.

3.  PURCHASES AND SALES OF SECURITIES -- For the period ended December 31, 2008,
purchases and sales of securities other than United States government
obligations and short-term investments aggregated $2,407,833,478 and
$2,185,940,428 respectively. There were no purchases or sales of long-term
United States government obligations.

4.  A.  MANAGEMENT FEES -- During the period ended December 31, 2008, the Fund
        incurred management fees of $5,348,189, paid or payable to the Fund's
        investment adviser, Capital Growth Management Limited Partnership
        ("CGM"), certain officers and employees of which are also officers and
        trustees of the Fund. The management agreement provides for a fee at
        the annual rate of 0.90% on the first $500 million of the Fund's
        average daily net assets, 0.80% of the next $500 million and 0.75% of
        such assets in excess of $1 billion.

    B.  OTHER EXPENSES -- CGM performs certain administrative, accounting,
        compliance and other services for the Fund. The expenses of those
        services, which were paid to CGM by the Fund, include the following:
        (i) expenses for personnel performing bookkeeping, accounting and
        financial reporting functions and clerical functions relating to the
        Fund; (ii) expenses for services required in connection with the
        preparation of registration statements and prospectuses, shareholder
        reports and notices, proxy solicitation material furnished to
        shareholders of the Fund or regulatory authorities and reports and
        questionnaires for SEC compliance; (iii) registration, filing and other
        fees in connection with requirements of regulatory authorities and (iv)
        compliance in connection to the Investment Company Act of 1940 and the
        Sarbanes Oxley Act of 2002. The accounting, administration and
        compliance expense of $108,231, for the period ended December 31, 2008,
        is shown separately in the financial statements. These expenses include
        the reimbursement of a portion of the compensation expenses incurred by
        CGM for its employees who provide these administrative, accounting,
        compliance, and other services to the Fund, including $86,868 of the
        salaries of CGM employees who are officers of the Fund.

    C.  TRUSTEES FEES AND EXPENSES -- The Fund does not pay any compensation
        directly to any trustees who are officers or employees of CGM, or any
        affiliate of CGM (other than registered investment companies). For the
        period ended December 31, 2008, each disinterested trustee was compen-
        sated by the Trust with an annual fee of $70,000 plus travel expenses
        for each meeting attended. The disinterested trustees are responsible
        for the audit committee functions of the Trust's Board and have
        designated a chairman to oversee those functions who receives an
        additional $30,000 annually. Of these amounts, the Fund is responsible
        for $9,000 per trustee annually, plus an annual variable fee calculated
        based on the proportion of the Fund's average net assets relative to
        the aggregate average net assets of the Trust.

5.  FASB 157 -- In September 2006, FASB issued Statement of Financial Accounting
Standards No. 157, (FAS 157) "Fair Value Measurements", effective for fiscal
years beginning after November 15, 2007. The Fund adopted the provisions of FAS
157 on January 1, 2008. FAS 157 defines fair value, establishes a framework for
measuring fair value in accordance with generally accepted accounting
principles and expands disclosure about fair value measurements.

In accordance with FAS 157, the Fund may use valuation techniques consistent
with the market, income, and cost approach to measure fair value. The market
approach uses prices and other relevant information generated by market
transactions involving identical or comparable assets or liabilities. The
income approach uses valuation techniques to convert future amounts (cash
flows, earnings) to a single present amount. The cost approach is based on the
amount that currently would be required to replace the service capacity of an
asset. To increase consistency and comparability in fair value measurements and
related disclosures, the Fund utilizes a fair value hierarchy which prioritizes
the various inputs to valuation techniques used to measure fair value into
three broad levels:

    o   Level 1 - Prices determined using: quoted prices in active markets for
        identical securities

    o   Level 2 - Prices determined using: other significant observable inputs
        (including quoted prices for similar securities, interest rates,
        prepayment spreads, credit risk, etc.)

    o   Level 3 - Prices determined using: significant unobservable inputs. In
        situations where quoted prices or observable inputs are unavailable
        (for example, when there is little or no market activity for an
        investment at the end of the period), unobservable inputs may be used.
        Unobservable inputs reflect the Fund's management's assumptions about
        the factors market participants would use in pricing an investment, and
        would be based on the best information available in the circumstances.

The inputs or methodology used for valuing securities are not necessarily an
indication of the risk associated with investing in those securities. The
following is a summary of the inputs used to value CGM Mutual Fund's
investments as of December 31, 2008:

                                                 INVESTMENT IN   OTHER FINANCIAL
VALUATION INPUTS                                   SECURITIES      INSTRUMENTS
                                                 -------------   ---------------
Level 1 - Quoted Prices........................   $354,196,652         N/A
Level 2 - Other Significant Observable Inputs..    133,409,570         N/A
Level 3 - Significant Unobservable Inputs......       none             N/A
                                                  ------------       -------
    TOTAL                                         $487,606,222         N/A
                                                  ============       =======

When current market prices or quotations are not readily available or do not
accurately reflect fair value, valuations may be determined in accordance with
procedures adopted by the Board of Trustees. For example, when developments
occur between the close of a market and the close of the NYSE that may
materially affect the value of some or all the securities, or when trading in a
security is halted, these procedures may be used. The frequency with which
these procedures are used is unpredictable. The valuation procedures may result
in a change to a particular security's assigned level within the fair value
hierarchy described above. The value of securities used for NAV calculation
under these procedures may differ from published prices for the same
securities.

                                CGM MUTUAL FUND
- -------------------------------------------------------------------------------

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Trustees of CGM Trust and Shareholders of CGM Mutual Fund:

In our opinion, the accompanying statement of assets and liabilities, including
the schedule of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of CGM Mutual Fund (the "Fund", a
series of CGM Trust) at December 31, 2008, the results of its operations, the
changes in its net assets and the financial highlights for the periods
indicated, in conformity with accounting principles generally accepted in the
United States of America. These financial statements and financial highlights
(hereafter referred to as "financial statements") are the responsibility of the
Fund's management; our responsibility is to express an opinion on these
financial statements based on our audits. We conducted our audits of these
financial statements 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. An audit 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, and evaluating the overall financial
statement presentation. We believe that our audits, which included confirmation
of securities at December 31, 2008 by correspondence with the custodian and
brokers, provide a reasonable basis for our opinion.

PricewaterhouseCoopers LLP
Boston, Massachusetts
February 17, 2009

                                CGM MUTUAL FUND
- -------------------------------------------------------------------------------

ADDITIONAL INFORMATION
(unaudited)

AVAILABILITY OF PROXY VOTING INFORMATION:
Proxy voting policies and information regarding how the Fund voted proxies
relating to portfolio securities during the twelve month period ended June 30,
2008 are available without charge, upon request by calling 1-800-345-3048. The
policies also appear in the Fund's Statement of Additional Information, which
can be found on the SEC's website, http://www.sec.gov. The voting records can
also be found on the SEC's website on the N-PX filing.

PORTFOLIO HOLDINGS:
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 Forms N-Q
are available on the SEC's website at http://www.sec.gov and may be reviewed
and copied at the SEC's Public Reference Room in Washington, D.C. Information
on the operation of the Public Reference Room may be obtained by calling
1-800-SEC-0330.

                                CGM MUTUAL FUND
- -------------------------------------------------------------------------------

FUND EXPENSES
As a shareholder of CGM Mutual Fund, you incur two types of costs: (1)
transaction costs, which could include, among other charges, wire fees and
custodial maintenance fees for certain types of accounts and (2) ongoing costs,
including management fees and other Fund expenses. This example is intended to
help you understand your ongoing costs (in dollars) of investing in the Fund
and to compare these costs with the ongoing costs of investing in other mutual
funds.

The example is based on an investment of $1,000 invested at the beginning of
the period and held for the entire period July 1, 2008 to December 31, 2008.

ACTUAL RETURN AND EXPENSES
The first line of the table below provides information about actual account
values and actual expenses. You may use the information in this line, together
with the amount you invested, to estimate the expenses that you paid over the
period. Simply divide your account value by $1,000 (for example, an $8,600
account value divided by $1,000 / 8.6), then multiply the result by the number
in the first line under the heading entitled "Expenses Paid During Period" to
estimate the expenses you paid on your account during this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES
The second line of the table below provides information about hypothetical
account values and hypothetical expenses based on the Fund's actual expense
ratio and an assumed rate of return of 5% per year before expenses, which is
not the Fund's actual return. The hypothetical account values and expenses may
not be used to estimate the actual ending account balance or expenses you paid
for the period. You may use this information to compare the ongoing costs of
investing in the Fund and other funds. To do so, compare this 5% hypothetical
example with the 5% hypothetical examples that appear in the shareholder
reports of the other funds.

Please note that the expenses shown in the table are meant to highlight your
ongoing costs only and do not reflect any transactional costs such as any wire
fees or custodial maintenance fees that may be payable. Therefore, the second
line of the table is useful in comparing ongoing costs only, and will not help
you determine the relative total costs of owning different funds. In addition,
if these transactional costs were included, your costs would have been higher.

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

                              Beginning         Ending         Expenses Paid
                            Account Value    Account Value     During Period*
                               7/01/08         12/31/08      7/01/08 - 12/31/08
- -------------------------------------------------------------------------------
Actual                        $1,000.00        $  685.70            $4.49
- -------------------------------------------------------------------------------
Hypothetical
(5% return before expenses)   $1,000.00        $1,019.81            $5.38
- -------------------------------------------------------------------------------
* Expenses are equal to the Fund's annualized expense ratio of 1.06%,
  multiplied by the average account value over the period, multiplied by
  184/366 (to reflect the one-half year period).


                                                           CGM MUTUAL FUND
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
                                                      25 YEAR INVESTMENT RECORD
                                         DECEMBER 31, 1983 -- DECEMBER 31, 2008 (UNAUDITED)
- -----------------------------------------------------------------------------------------------------------------------------------
                                  IF YOU HAD PURCHASED ONE SHARE OF THE FUND ON DECEMBER 31, 1983
- -----------------------------------------------------------------------------------------------------------------------------------
                               -- AND HAD TAKEN ALL DIVIDENDS                     OR -- HAD REINVESTED ALL DIVIDENDS AND CAPITAL
                                  AND DISTRIBUTIONS IN CASH                          GAINS DISTRIBUTIONS IN ADDITIONAL SHARES
- -----------------------------------------------------------------------------------------------------------------------------------

                                               During the Year
                                           You Would Have Received                                       Which Would Represent
                                      ---------------------------------                             -------------------------------
                                                                               The Value of                          A Cumulative
                       The Net                                                 Your Original                            Change
                     Asset Value        Per Share           Per Share           Investment               An           Expressed
    On                 of Your        Capital Gains          Income               At Each              Annual      As An Index With
 December           Shares Would      Distributions       Distributions          Year End           Total Return     December 31,
    31                Have Been            of                  of             Would Have Been            of          1983 = 100.0
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
   1983                $18.81                                                                                           100.0
   1984                 17.01            $ 1.86               $ 0.95              $20.00              +   6.3%          106.3
   1985                 21.53                --                 1.08               26.90              +  34.5           143.0
   1986                 22.86              2.75                 0.94               33.65              +  25.1           178.9
   1987                 20.40              4.52                 1.06               38.26              +  13.7           203.4
   1988                 19.94                --                 1.10               39.48              +   3.2           209.9
   1989                 22.34              0.95                 0.93               48.05              +  21.7           255.4
   1990                 21.64                --                 0.93*              48.58              +   1.1           258.2
   1991                 26.80              2.64                 0.97               68.45              +  40.9           363.8
   1992                 26.02              1.42                 0.93               72.63              +   6.1           386.0
   1993                 28.88              1.93                 0.86               88.46              +  21.8           470.1
   1994                 25.05                --                 1.04               79.88              -   9.7           424.5
   1995                 29.43              0.89                 0.77               99.29              +  24.3           527.7
   1996                 31.42              4.15                 0.74              122.82              +  23.7           652.8
   1997                 25.52              7.81                 0.67              132.89              +   8.2           706.3
   1998                 26.36              0.25                 0.98              143.79              +   8.2           764.2
   1999                 27.28              3.54                 0.84              173.27              +  20.5           920.9
   2000                 23.38                --                 0.73              153.17              -  11.6           814.1
   2001                 20.47                --                 0.20              135.40              -  11.6           719.7
   2002                 16.65                --                 0.41              112.52              -  16.9           598.1
   2003                 23.00                --                 0.23              157.19              +  39.7           835.5
   2004                 25.33                --                 0.16              174.32              +  10.9           926.6
   2005                 27.89              0.83                 0.31              199.77              +  14.6          1061.9
   2006                 27.78              1.20                 0.45              210.76              +   5.5          1120.3
   2007                 31.80              6.30                 0.33              291.90              +  38.5          1551.6
   2008                 22.56                --                 0.30              209.58              -  28.2          1114.0
                                         ------               ------                                   -------
    Totals                               $41.04               $17.91                                   +1014.0
- -----------------------------------------------------------------------------------------------------------------------------------
* Includes $0.05 per share distributed from paid-in capital.
  Shares were first offered on November 5, 1929; the net asset value per share, adjusted for stock splits and dividends, was $8.33.
- -----------------------------------------------------------------------------------------------------------------------------------

The performance data contained in this report represent past performance, which is no guarantee of future results. The table above
does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. The
investment return on, and the principal value of, an investment in the Fund fluctuate so that investors' shares, when redeemed,
may be worth more or less than the original cost. Current performance may be lower or higher than the performance data quoted. The
advisor waived $0.02 and $0.02 per share of management fee in 2003 and 2004, respectively. Otherwise, the annual total return for
2003 and 2004 and cumulative 25-year return would have been lower.


                                CGM MUTUAL FUND
- --------------------------------------------------------------------------------

TAX INFORMATION (UNAUDITED) FOR THE TAX YEAR ENDED 12/31/2008

We are providing this information as required by the Internal Revenue Code. The
amounts shown may differ from those elsewhere in this report because of
differences between tax and financial reporting requirements. For the year
ended December 31, 2008, the Fund designated $0 as long-term capital dividends.

TRUSTEES AND OFFICERS

The Fund is supervised by the board of trustees (the "Board") of the Trust. The
Board is responsible for the general oversight of the Fund, including general
supervision and review of the Fund's investment activities. The Board, in turn,
elects the officers who are responsible for administering the Fund's day-to-day
operations. An asterisk in the table below identifies those trustees and
officers who are "interested persons" of the Trust as defined in the Investment
Company Act of 1940. Each trustee and officer of the Trust noted as an
interested person is interested by virtue of that individual's position with
CGM, the Fund's investment adviser, as described in the table below. Each
trustee serves during the continued lifetime of the Trust or until he earlier
dies, resigns or is removed, or if sooner, until the election and qualification
of his successor. Each officer serves until his or her successor is elected or
qualified or until the officer sooner dies, resigns, or is removed or becomes
disqualified.

The trustees and officers of the Trust, their ages, their principal occupations
during the past five years, the number of CGM Funds they oversee, and other
directorships they hold are set forth below. Unless otherwise noted below, the
address of each interested trustee and officer is One International Place,
Boston, Massachusetts 02110. Correspondence intended for the trustees who are
not "interested persons" of the Trust may be sent c/o Capital Growth Management,
One International Place, Boston, Massachusetts 02110.

The Statement of Additional Information for the Fund includes additional
information about Fund trustees and is available, without charge, upon request
by calling the CGM Marketing Department, toll free, at 800-345-4048.



                                                                                                                     NUMBER OF
                                                                                                                   FUNDS IN THE
                                                                         PRINCIPAL OCCUPATION DURING                 CGM FUNDS
                                    POSITION HELD AND                          PAST 5 YEARS AND                       COMPLEX
NAME, ADDRESS AND AGE             LENGTH OF TIME SERVED                    OTHER DIRECTORSHIPS HELD                  OVERSEEN
- ---------------------             ---------------------                  ---------------------------               ------------
                                                                                                               
INTERESTED TRUSTEES
G. Kenneth Heebner*              Trustee since 1993             Co-founder and Employee, CGM;                            3
  age 68                                                        Controlling Owner, Kenbob, Inc. (general
                                                                partner of CGM)

Robert L. Kemp*                  Trustee since 1990             Co-founder and Employee, CGM; Non-voting                 3
  age 76                                                        Owner, Kenbob, Inc. (general partner of CGM)

DISINTERESTED TRUSTEES
Peter O. Brown                   Trustee since 1993             Counsel (formerly, Partner), Harter,                     3
  age 68                                                        Secrest & Emery LLP (law firm); formerly
                                                                Executive Vice President and Chief
                                                                Operating Officer, The Glenmeade Trust
                                                                Company (from 1990 to 1993); formerly
                                                                Senior Vice President, J.P. Morgan Chase
                                                                Bank (from 1981 to 1990); Trustee, TT
                                                                International U.S.A. Master and Feeder
                                                                Trusts (four mutual funds) from
                                                                2000-2005

Mark W. Holland                  Trustee since 2004             President, Wellesley Financial Advisors,                 3
  age 59                                                        LLC; formerly Vice President and Chief
                                                                Operating Officer, Fixed Income Management,
                                                                Loomis, Sayles & Company, L.P.; formerly
                                                                Director, Loomis, Sayles & Company, L.P.
                                                                (from 1999 to 2002)

James Van Dyke Quereau, Jr.      Trustee since 1993             Managing Partner and Director, Stratton                  3
  age 60                                                        Management Company (investment
                                                                management); Director and Vice
                                                                President, Semper Trust Co.

J. Baur Whittlesey               Trustee since 1990             Member, Ledgewood, P.C. (law firm)                       3
  age 62

OFFICERS
G. Kenneth Heebner*              Vice President since 1990      Co-founder and Employee, CGM;                            3
  age 68                                                        Controlling Owner, Kenbob, Inc. (general
                                                                partner of CGM)

Robert L. Kemp*                  President since 1990           Co-founder and Employee, CGM; Non-voting                 3
  age 76                                                        Owner, Kenbob, Inc. (general partner of CGM)

David C. Fietze*                 Chief Compliance Officer       Employee - Legal counsel, CGM;                           3
  age 39                           since 2004                   formerly counsel, Bartlett Hackett
  address:                                                      Feinberg, P.C.
  38 Newbury Street
  Boston, Massachusetts
  02116

Kathleen S. Haughton*            Vice President since 1992      Employee - Investor Services Division, CGM               3
  age 48                         and Anti-Money
  address:                       Laundering Compliance
  38 Newbury Street              Officer since 2002
  Boston, Massachusetts
  02116

Jem A. Hudgins*                  Treasurer since 2004           Employee - CGM                                           3
  age 45

Leslie A. Lake*                  Vice President and             Employee - Office Administrator, CGM                     3
  age 63                         Secretary since 1992

Martha I. Maguire*               Vice President since 1994      Employee - Funds Marketing, CGM                          3
  age 53

Mary L. Stone*                   Assistant Vice President       Employee - Portfolio Transactions, CGM                   3
  age 64                         since 1990


INVESTMENT ADVISER
CAPITAL GROWTH MANAGEMENT
LIMITED PARTNERSHIP
Boston, Massachusetts 02110

TRANSFER AND DIVIDEND PAYING
AGENT AND CUSTODIAN OF ASSETS
STATE STREET BANK AND TRUST COMPANY
Boston, Massachusetts 02111

SHAREHOLDER SERVICING AGENT
FOR STATE STREET BANK AND
TRUST COMPANY
BOSTON FINANCIAL DATA SERVICES, INC.
P.O. Box 8511
Boston, Massachusetts 02266-8511

- -------------------------------------------------------
TELEPHONE NUMBERS
For information about:

[ ] Account Procedures and Status

[ ] Redemptions

[ ] Exchanges
    Call 800-343-5678

[ ] New Account Procedures

[ ] Prospectuses

[ ] Performance

[ ] Proxy Voting Policies and Voting Records

[ ] Complete Schedule of Portfolio Holdings
    for the 1st & 3rd Quarters (as filed on Form N-Q)
    Call 800-345-4048
- -------------------------------------------------------

MAILING ADDRESS
CGM Shareholder Services
c/o Boston Financial Data Services
P.O. Box 8511
Boston, MA 02266-8511
- -------------------------------------------------------

- -------------------------------------------------------
WEBSITE
http://www.cgmfunds.com
- -------------------------------------------------------

This report has been prepared for the shareholders of the Fund
and is not authorized for distribution to current or prospective
investors in the Fund unless it is accompanied or preceded by
a prospectus.

MAR 08                                                      Printed in U.S.A.


CGM
REALTY FUND

15th Annual Report
December 31, 2008

A No-Load Fund

[logo] Investment Adviser
       CAPITAL GROWTH MANAGEMENT
       Limited Partnership

TO OUR SHAREHOLDERS:
- -------------------------------------------------------------------------------

CGM Realty Fund declined -41.5% during the fourth quarter of 2008 compared to
the unmanaged Standard and Poor's 500 Index which fell -21.9% and the FTSE
NAREIT Equity REITs Index which fell -38.8%. For the year just ended, CGM
Realty Fund returned -46.9%, the S&P 500 Index, -37.0% and the FTSE NAREIT
Equity REITs Index, -37.7%.

THE YEAR IN REVIEW AND ECONOMIC OUTLOOK
In December, the National Bureau of Economic Research announced the U.S.
economy had, in fact, entered a recession twelve months earlier in December of
2007. To anyone in the homebuilding, banking, retail or investment banking
businesses, this came as no surprise ...

In the first quarter of 2008, Bear Stearns became the first victim of what was
to become a rapidly unfolding financial meltdown. J.P. Morgan purchased the
venerable investment house for a mere $10 per share and the government absorbed
some $29 billion of its mortgage backed securities. Although the Federal
Reserve Board had locked its sights on the housing market as early as August of
2007 when it began reducing the Federal Discount rate, in early 2008 the
government ratcheted up its efforts to counter plummeting home prices and
slowing consumer sales by proposing a $150 billion stimulus program which was
disbursed in May, June and July. By mid-year, the economy's prognosis was
improving as promising trends in trade, agriculture, energy and commodities
combined with fairly aggressive monetary policy and fiscal incentives pointed
to recovery. But, in a case of too much of a good thing, the price of crude oil
then skyrocketed to $147 per barrel, up from $70 one year earlier. Still, it
looked as though the government stimulus package was helping consumers absorb
the resulting $4.00 per gallon cost of gasoline and though the Fed continued to
mention inflation as an ongoing risk, the unemployment rate remained a
relatively low 5.5% in June. July's durable goods orders were up 1.3% and the
Consumer Confidence Index which had taken a hit the month before rebounded to
56.9 in August from 51.9 in July. September, however, was an altogether
different story.

On September 7, the federal government seized Freddie Mac and Fannie Mae, the
primary buyers of mortgages in the U.S. On September 10, Lehman Brothers
announced a $3.9 billion loss for the previous quarter. One week later, the
government agreed to loan American International Group $85 billion (later
increased to $150 billion) claiming AIG was "too big to fail." Lehman was left
to fend for itself and unable to find a buyer, fell victim to the crisis. Other
financial institutions sought assistance and the few remaining large
independent brokerage firms either merged with commercial banks or registered
as bank holding companies. Grudgingly, Congress approved the Troubled Asset
Relief Program (TARP) to the tune of $700 billion dollars, the first $350
billion of which largely went to shore up balance sheets throughout the banking
system. In early November, General Motors announced sales figures for October
were a full 45% lower than those of October 2007. GM principally blamed frozen
credit markets and its CEO along with the head of the UAW and leaders of the
other two major U.S. automobile firms took their case to Congress pleading for
billions of dollars in government loans. Congress excoriated the CEOs for
arriving from Detroit on separate private jets and seemed more interested in
executive compensation than in company overhead and labor costs versus the
competition. As the high drama was unfolding in Washington, the S&P 500
declined to 752.44 on November 20, 2008, down 52% from its all-time high
reached a little more than a year earlier in October 2007. The auto executives
were sent home empty-handed and told to return (via other transport) with
detailed plans for survival in a new, leaner environment. Two weeks later,
Detroit's CEOs made the return trip to the Capitol with plans in hand, but to
no avail: Congress did not approve their loans. Then, on December 19, the White
House intervened and allocated $17 billion in TARP funds to Chrysler and
General Motors in an effort to avert their bankruptcy. As a condition of the
loans, the companies must demonstrate financial viability by March 31, 2009.
Widespread doubt that loans to the auto companies will do anything more than
just kick the problem further down the road along with other factors weighed
heavily on the Consumer Confidence Index pushing it to 38 in December, the
lowest point in its 41-year history (and down from 90 just one year ago).

The year 2008 will figure prominently in economic history books as a year of
dramatic easing of monetary policy, starting with a Federal Funds rate of 4.25%
on January 1 (down from 5.25% in August 2007) to a low of 0% announced on
December 16, 2008 (described as a range of 0% to .25% given the difficulty of
managing a zero cost of money). Announcement of the latest cut promptly sank
the 10-year government bond to 2.12%, its lowest yield since 1951. Add to the
Fed's efforts the recent plunge in the price of oil to $40 per barrel which
translates into gasoline at less than $2.00 per gallon and money should make
its way back into the consumer's pocket.

For nearly sixteen months, the Fed, the Treasury Department and Congress have
done yeoman's duty in an effort to restore confidence, increase liquidity in
the financial system and rejuvenate the economy. We believe we are headed in
the right direction though it will take some time--possibly the better part of
2009 or longer--to squeeze remaining toxic debt out of the system.

PORTFOLIO STRATEGY
During the first half of 2008, the CGM Realty Fund portfolio included
substantial holdings in office and industrial REITs, mall (retail) REITs and
mining companies. Mining stocks were eliminated in the second half of the year
as the global economy weakened and proceeds were reinvested in apartment and
mortgage REITs.

Almost all the Fund's REIT holdings experienced major declines. The largest
loss occurred in General Growth Properties which was severely punished because
of difficulty refinancing its debt as credit markets seized up in the latter
half of the year. Only the mortgage REITs held their value in this hostile
environment.

Although the mining stocks performed well before June 30, REIT losses in the
final two quarters of the year more than offset those gains.

At year-end, CGM Realty Fund was approximately 34% invested in retail REITs,
23% in office and industrial REITs, 15% each in mortgage and apartment REITs
and 9% in health care and miscellaneous REITs. On December 31, 2008, the Fund's
three largest holdings were in the following REITs: Annaly Capital Management,
Inc. (mortgage), Federal Realty Investment Trust (retail) and ProLogis (office
and industrial).

              /s/ Robert L. Kemp

                  Robert L. Kemp
                  President

              /s/ G. Kenneth Heebner

                  G. Kenneth Heebner
                  Portfolio Manager

January 2, 2009

COMPARISONS OF CHANGE IN VALUE OF $10,000 INVESTMENT IN CGM REALTY FUND, THE
UNMANAGED S&P 500 INDEX, AND THE FTSE NAREIT EQUITY REITS INDEX
assuming reinvestment of dividends and capital gains

- ----------------------------
      CGM REALTY FUND
Average Annual Total Returns
      through 12/31/08
- ----------------------------
1 year    5 year    10 year
- -46.9%      9.7%      15.8%
- ----------------------------
   Past performance is no
indication of future results
- ----------------------------

                                 Unmanaged
                    CGM           S&P 500          FTSE NAREIT
                Realty Fund        Index       Equity REITS Index
      -----------------------------------------------------------

      1998        $10,000         $10,000            $10,000
      1999         10,260          12,100              9,540
      2000         13,256          10,999             12,059
      2001         13,932           9,690             13,735
      2002         14,420           7,549             14,257
      2003         27,355           9,716             19,546
      2004         37,066          10,775             25,723
      2005         47,074          11,303             28,861
      2006         60,725          13,089             38,991
      2007         81,614          13,809             32,869
      2008         43,337           8,700             20,477

CGM REALTY FUND
PORTFOLIO MANAGER
- -------------------------------------------------------------------------------
G. Kenneth Heebner has managed CGM Realty Fund since its inception on May 13,
1994. In 1990, Mr. Heebner founded Capital Growth Management Limited
Partnership with Robert L. Kemp. Prior to establishing the new company, Mr.
Heebner managed mutual funds at Loomis, Sayles and Company. In addition to CGM
Realty Fund, he currently manages CGM Mutual Fund and CGM Focus Fund.
- -------------------------------------------------------------------------------
See the Schedule of Investments on pages 4 and 5 for the percentage of net
assets of the Fund invested in particular industries as of December 31, 2008.

INVESTMENT PERFORMANCE
(unaudited)
- -------------------------------------------------------------------------------
Cumulative Total Return for Periods
Ended December 31, 2008

                                                                        CGM
                                                                   REALTY FUND
                                                                   -----------
10 Years .......................................................     +334.0%
 5 Years .......................................................     + 58.6
 1 Year ........................................................     - 46.9
 3 Months ......................................................     - 41.5

The performance data contained in the report represent past performance, which
is no guarantee of future results. The graph and table above do not reflect the
deduction of taxes a shareholder would pay on Fund distributions or the
redemption of Fund shares and assume the reinvestment of all Fund
distributions. The investment return and the principal value of an investment
in the Fund will fluctuate so that investors' shares, when redeemed, may be
worth more or less than their original cost. Current performance may be lower
or higher than the performance data quoted.


                                                  CGM REALTY FUND
- ------------------------------------------------------------------------------------------------------------------

INVESTMENTS AS OF DECEMBER 31, 2008

REAL ESTATE INVESTMENT TRUSTS -- 97.2% OF TOTAL NET ASSETS


                                                                                       SHARES          VALUE(a)
                                                                                       ------          --------
                                                                                              
APARTMENTS -- 15.3%
  BRE Properties, Inc. .........................................................        350,000     $    9,793,000
  Essex Property Trust, Inc. ...................................................        636,600         48,859,050
  Home Properties, Inc. (b) ....................................................      1,800,000         73,080,000
  UDR, Inc. ....................................................................      2,000,000         27,580,000
                                                                                                    --------------
                                                                                                       159,312,050
                                                                                                    --------------
HEALTHCARE -- 4.5%
  Ventas, Inc. .................................................................      1,395,000         46,830,150
                                                                                                    --------------
MISCELLANEOUS -- 4.5%
  Entertainment Properties Trust ...............................................      1,600,000         47,680,000
                                                                                                    --------------
MORTGAGE -- 15.5%
  Annaly Capital Management, Inc. ..............................................      8,320,000        132,038,400
  Chimera Investment Corporation ...............................................      8,500,000         29,325,000
                                                                                                    --------------
                                                                                                       161,363,400
                                                                                                    --------------
OFFICE AND INDUSTRIAL -- 23.2%
  Alexandria Real Estate Equities, Inc. ........................................      1,087,400         65,613,716
  Digital Realty Trust, Inc. ...................................................      1,885,400         61,935,390
  Douglas Emmett, Inc. .........................................................      1,100,000         14,366,000
  ProLogis .....................................................................      5,793,000         80,464,770
  SL Green Realty Corp. ........................................................        750,000         19,425,000
                                                                                                    --------------
                                                                                                       241,804,876
                                                                                                    --------------
RETAIL -- 34.2%
  Developers Diversified Realty Corporation (b) ................................     10,200,000         49,776,000
  Federal Realty Investment Trust ..............................................      1,505,000         93,430,400
  Simon Property Group, Inc. ...................................................      1,310,000         69,600,300
  Tanger Factory Outlet Centers, Inc. ..........................................        305,000         11,474,100
  Taubman Centers, Inc. ........................................................      2,420,000         61,613,200
  The Macerich Company (b) .....................................................      3,873,900         70,350,024
                                                                                                    --------------
                                                                                                       356,244,024
                                                                                                    --------------
TOTAL REAL ESTATE INVESTMENT TRUSTS (Identified cost $1,382,681,093) ...........................     1,013,234,500
                                                                                                    --------------

SHORT-TERM INVESTMENT -- 1.5% OF TOTAL NET ASSETS
                                                                                       FACE
                                                                                       AMOUNT
                                                                                       ------
  American Express Credit Corporation, 0.01%, 01/02/09 (Cost $15,220,000) ......    $15,220,000         15,220,000
                                                                                                    --------------
TOTAL INVESTMENTS -- 98.7% (Identified cost $1,397,901,093) ...................................      1,028,454,500
  Cash and receivables ........................................................................         28,167,804
  Liabilities .................................................................................        (14,559,731)
                                                                                                    --------------
TOTAL NET ASSETS -- 100.0% ....................................................................     $1,042,062,573
                                                                                                    ==============

(a) See notes 1A and 6.
(b) Non-controlled affiliate (See Note 7).

                                  See accompanying notes to financial statements.


                                CGM REALTY FUND
- --------------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES

December 31, 2008

ASSETS
Investments at value:
  Unaffiliated issuers
   (Identified cost -- $1,079,374,413) ......     $835,248,476
  Non-controlled affiliates
   (Identified cost -- $318,526,680) ........      193,206,024   $1,028,454,500
                                                  ------------
  Cash .......................................................              510
  Receivable for:
    Securities sold .........................       13,572,068
    Shares of the Fund sold .................        1,588,163
    Dividends and interest ..................       13,007,063       28,167,294
                                                  ------------   --------------
      Total assets ...........................................    1,056,622,304
                                                                 --------------
LIABILITIES
  Payable for:
    Securities purchased ....................        7,781,403
    Shares of the Fund redeemed .............        2,582,839
    Tax withholding liability ...............            1,050
    Distributions declared ..................        3,277,814       13,643,106
                                                  ------------

  Accrued expenses:
    Management fees .........................          654,506
    Trustees' fees ..........................           20,071
    Accounting, administration and
     compliance expenses ....................           20,522
    Transfer agent fees .....................          124,787
    Other expenses ..........................           96,739          916,625
                                                  ------------   --------------
      Total liabilities ......................................       14,559,731
                                                                 --------------
NET ASSETS ...................................................   $1,042,062,573
                                                                 ==============

Net Assets consist of:
  Capital paid-in ............................................   $1,704,555,209
  Accumulated net realized losses on investments .............     (293,046,043)
  Net unrealized depreciation on investments .................     (369,446,593)
                                                                 --------------
NET ASSETS ...................................................   $1,042,062,573
                                                                 ==============
  Shares of beneficial interest
   outstanding, no par value .................................       64,230,727
                                                                 ==============
  Net asset value per share* .................................           $16.22
                                                                 ==============

* Shares of the Fund are sold and redeemed at net asset value
  ($1,042,062,573 / 64,230,727).

                See accompanying notes to financial statements.

                                CGM REALTY FUND
- -------------------------------------------------------------------------------

STATEMENT OF OPERATIONS

Year Ended December 31, 2008

INVESTMENT INCOME
Income:
  Dividends (net of withholding tax of $220,443
   and includes $1,768,860 from non-controlled
   affiliated issuers) .....................................       $ 65,475,639
  Interest .................................................            823,086
                                                                ---------------
                                                                     66,298,725
                                                                ---------------
Expenses:
  Management fees ..........................................         14,799,499
  Trustees' fees ...........................................             81,623
  Accounting, administration and compliance expenses .......            246,255
  Custodian fees and expenses ..............................            240,643
  Transfer agent fees ......................................            685,111
  Audit and tax services ...................................             41,150
  Legal ....................................................             56,335
  Printing .................................................            121,510
  Registration fees ........................................            122,426
  Line of credit commitment fee ............................             20,335
  Miscellaneous expenses ...................................              6,030
                                                                ---------------
                                                                     16,420,917
                                                                ---------------
  Net investment income ....................................         49,877,808
                                                                ---------------
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
  Net realized losses on investments (including net
   realized loss of $19,272,965 on sales of investments
   in non-controlled affiliated issuers) ...................       (293,046,043)
  Net unrealized depreciation (including unrealized
   depreciation of $117,141,155 in non-controlled
   affiliated issuers) .....................................       (839,990,914)
                                                                ---------------
  Net realized and unrealized losses on investments ........     (1,133,036,957)
                                                                ---------------
CHANGE IN NET ASSETS FROM OPERATIONS .......................    $(1,083,159,149)
                                                                ===============

                See accompanying notes to financial statements.


                                          CGM REALTY FUND
- -------------------------------------------------------------------------------------------------

STATEMENT OF CHANGES IN NET ASSETS


                                                                     YEAR ENDED DECEMBER 31,
                                                                ---------------------------------
                                                                     2008               2007
                                                                --------------     --------------
FROM OPERATIONS
                                                                             
  Net investment income ..................................      $   49,877,808     $   15,062,683
  Net realized gains (losses) on investments .............        (293,046,043)       269,987,939
  Net unrealized appreciation (depreciation) .............        (839,990,914)       216,018,781
                                                                --------------     --------------
  Change in net assets from operations ...................      (1,083,159,149)       501,069,403
                                                                --------------     --------------
FROM DISTRIBUTIONS TO SHAREHOLDERS
  Net investment income ..................................         (41,077,152)       (13,939,899)
  Net short-term realized capital gains on investments ...                  --       (117,024,618)
  Net long-term realized capital gains on investments ....                  --       (147,041,038)
                                                                --------------     --------------
                                                                   (41,077,152)      (278,005,555)
                                                                --------------     --------------
FROM CAPITAL SHARE TRANSACTIONS
  Proceeds from sale of shares ...........................         794,360,696        574,783,411
  Net asset value of shares issued in connection with
   reinvestment of:
    Dividends from net investment income .................          31,630,494         11,065,084
    Distributions from net short-term realized capital
     gains on investments ................................                  --         94,353,620
    Distributions from net long-term realized capital
     gains on investments ................................                  --        118,556,947
                                                                --------------     --------------
                                                                   825,991,190        798,759,062
  Cost of shares redeemed ................................        (658,153,090)      (498,107,852)
                                                                --------------     --------------
    Change in net assets derived from capital share
     transactions ........................................         167,838,100        300,651,210
                                                                --------------     --------------
  Total change in net assets .............................        (956,398,201)       523,715,058

NET ASSETS
  Beginning of period ....................................       1,998,460,774      1,474,745,716
                                                                --------------     --------------
  End of period ..........................................      $1,042,062,573     $1,998,460,774
                                                                ==============     ==============
NUMBER OF SHARES OF THE FUND:
  Issued from sale of shares .............................          26,769,377         18,339,803
  Issued in connection with reinvestment of:
    Dividends from net investment income .................           1,544,773            345,179
    Distributions from net short-term realized capital
     gains on investments ................................                  --          2,981,157
    Distributions from net long-term realized capital
     gains on investments ................................                  --          3,745,875
                                                                --------------     --------------
                                                                    28,314,150         25,412,014
  Redeemed ...............................................         (27,629,502)       (16,365,379)
                                                                --------------     --------------
  Net change .............................................             684,648          9,046,635
                                                                ==============     ==============

                         See accompanying notes to financial statements.



                                                        CGM REALTY FUND
- ------------------------------------------------------------------------------------------------------------------------------

FINANCIAL HIGHLIGHTS


                                                                                 FOR THE YEAR ENDED DECEMBER 31,
                                                                 ---------------------------------------------------------------
                                                                    2008          2007          2006          2005         2004
                                                                                                          
For a share of the Fund outstanding throughout each period:

Net asset value at the beginning of period ..................       $31.45        $27.06        $27.19        $29.56      $24.75
                                                                    ------        ------        ------        ------      ------
Net investment income (a) ...................................         0.72          0.27          0.45          0.43        0.19
Net realized and unrealized gains (losses) on investments ...       (15.34)         9.06          7.37          7.51        8.55
                                                                    ------        ------        ------        ------      ------
Total from investment operations ............................       (14.62)         9.33          7.82          7.94        8.74
                                                                    ------        ------        ------        ------      ------
Dividends from net investment income ........................        (0.61)        (0.25)        (0.45)        (0.43)      (0.18)
Distribution from net short-term realized gains .............           --         (2.08)        (0.42)           --       (0.16)
Distribution from net long-term realized gains ..............           --         (2.61)        (7.08)        (9.88)      (3.59)
                                                                    ------        ------        ------        ------      ------
Total distributions .........................................        (0.61)        (4.94)        (7.95)       (10.31)      (3.93)
                                                                    ------        ------        ------        ------      ------
Net increase (decrease) in net asset value ..................       (15.23)         4.39         (0.13)        (2.37)       4.81
                                                                    ------        ------        ------        ------      ------
Net asset value at end of period ............................       $16.22        $31.45        $27.06        $27.19      $29.56
                                                                    ======        ======        ======        ======      ======
Total return (%) ............................................        (46.9)         34.4          29.0          27.0        35.5

Ratios:
Operating expenses to average net assets (%) ................         0.86          0.86          0.88          0.92        0.96
Net investment income to average net assets (%) .............         2.62          0.86          1.49          1.34        0.73
Portfolio turnover (%) ......................................          218           200           160           136          43
Net assets at end of period (in thousands) ($) ..............    1,042,063     1,998,461     1,474,746     1,031,966     785,399

(a) Per share net investment income has been calculated using the average shares outstanding during the period.

                                         See accompanying notes to financial statements.



                                CGM REALTY FUND
- -------------------------------------------------------------------------------

NOTES TO FINANCIAL STATEMENTS -- DECEMBER 31, 2008

1.  The Fund is a diversified series of CGM Trust which is organized as a
Massachusetts business trust under the laws of Massachusetts pursuant to an
Agreement and Declaration of Trust. The Trust is registered under the
Investment Company Act of 1940 as an open-end management investment company.
The Trust has two other funds whose financial statements are not presented
herein. The Fund commenced operations on May 13, 1994. The Fund's investment
objective is to provide a combination of income and long-term growth of
capital. The Fund intends to pursue its objective by investing primarily in
equity securities of companies in the real estate industry, including real
estate investment trusts.

The following is a summary of significant accounting policies consistently
followed by the Fund in the preparation of its financial statements. The
preparation of financial statements in accordance with accounting principles
generally accepted in the United States of America requires management to make
estimates and assumptions that affect the reported amounts and disclosures in
the financial statements. Actual results could differ from those estimates.

A.  SECURITY VALUATION -- Equity securities are valued on the basis of
    valuations furnished by a pricing service, authorized by the Board of
    Trustees. Equity securities listed or regularly traded on a securities
    exchange or in the over-the-counter (OTC) market are valued at the last
    quoted sale price or, for certain markets, the official closing price at
    the time the valuations are made. A security that is listed or traded on
    more than one exchange is valued at the quotation on the exchange
    determined to be the primary market for such security. For securities with
    no sale reported, the last reported bid price is used. Corporate debt
    securities are valued on the basis of valuations furnished by a pricing
    service, authorized by the Board of Trustees, which determines valuations
    for normal, institutional-size trading units of such securities using
    market information, transactions for comparable securities and various
    relationships between securities which are generally recognized by
    institutional traders. United States government debt securities are valued
    at the current closing bid, as last reported by a pricing service approved
    by the Board of Trustees. Short-term investments having a maturity of sixty
    days or less are stated at amortized cost, which approximates value. Other
    assets and securities which are not readily marketable will be valued in
    good faith at fair value using methods determined by the Board of Trustees.

B.  SECURITY TRANSACTIONS AND RELATED INVESTMENT INCOME -- Security
    transactions are accounted for on the trade date (date the order to buy or
    sell is executed) and dividend income is recorded on the ex-dividend date
    net of applicable foreign taxes, a portion of which may be recoverable. The
    Fund will accrue such taxes and recoveries as applicable based upon its
    current interpretations of the tax rules and regulations that exist in the
    markets in which it invests. Interest income is recorded on the accrual
    basis and includes amortization of premium and discount. Net gain or loss
    on securities sold is determined on the identified cost basis. Dividend
    payments received by the Fund from its investment in REITs may consist of
    ordinary income, capital gains and return of capital and as such are
    recorded as dividend income, capital gains or a reduction to security cost,
    as appropriate. Non-cash dividend payments, if any, are recorded at the
    fair market value of the securities received.

C.  FEDERAL INCOME TAXES -- It is the Fund's policy to comply with the
    requirements of the Internal Revenue Code applicable to regulated
    investment companies, and to distribute to its shareholders all of its
    taxable income and net realized capital gains, within the prescribed time
    period. Accordingly, no provision for federal income tax has been made.
    The Fund adopted the provisions of the Financial Accounting Standards
    Board ("FASB") Interpretation No. 48, Accounting for Uncertainty in Income
    Taxes, an interpretation of FASB Statement 109 ("FIN 48"), on January 1,
    2007. FIN 48 prescribes a minimum threshold for financial statement
    recognition of the benefit of a tax position taken or expected to be taken
    in a tax return. The implementation of FIN 48, which included review of the
    Fund's tax return of each of the three open tax years, did not result in
    any unrecognized tax benefits in the accompanying financial statements.
    Management's conclusion regarding FIN 48 may be subject to review and
    adjustment at a later date based on factors including, ongoing analysis of
    tax laws, regulations and interpretations thereof.

    At December 31, 2008, the Fund had available for tax purposes, capital loss
    carryovers of $287,181,102 expiring December 31, 2016.

    As of December 31, 2008, the components of distributable earnings on a tax
    basis were as follows:

     UNDISTRIBUTED       UNDISTRIBUTED LONG-TERM           NET UNREALIZED
    ORDINARY INCOME           CAPITAL GAINS         APPRECIATION/(DEPRECIATION)
    ---------------      -----------------------    ----------------------------
          $--                      $--                     $(375,311,534)

    The identified cost of investments in securities owned by the Fund for
    federal income tax purposes, and their respective gross unrealized
    appreciation and depreciation at December 31, 2008 was as follows:

                        GROSS UNREALIZED     GROSS UNREALIZED     NET UNREALIZED
    IDENTIFIED COST       APPRECIATION         DEPRECIATION        DEPRECIATION
    ---------------     ----------------     ----------------     --------------

     $1,403,766,034        $41,374,262        $(416,685,796)      $(375,311,534)

D.  DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- Dividends and distributions
    are recorded by the Fund on the ex-dividend date. The classification of
    income and capital gains distributions is determined in accordance with
    income tax regulations. Distributions from net investment income and
    short-term capital gains are treated as ordinary income for income tax
    purposes. Permanent book and tax differences relating to shareholder
    distributions may result in reclassifications to paid-in capital or
    accumulated realized gain/loss. The Fund also utilized earnings and
    profits distributed to shareholders on redemption of shares as a part of
    the dividend deduction for income tax purposes. Undistributed net
    investment income or accumulated net investment loss may include temporary
    book and tax differences such as tax deferral of losses on wash sales,
    which will reverse in a subsequent period. Any taxable income or gain
    remaining at fiscal year end is distributed in the following year.

    The tax character of distributions paid during the period ended December
    31, 2008 and 2007 were as follows:

                                       LONG-TERM
    YEAR      ORDINARY INCOME        CAPITAL GAINS             TOTAL
    ----      ---------------        -------------             -----

    2008        $ 41,077,152          $         --         $ 41,077,152
    2007        $130,964,517          $147,041,038         $278,005,555

E.  INDEMNITIES -- In the normal course of business, the Fund may enter into
    contracts that provide indemnities to third parties for various potential
    losses and claims. The Fund's maximum exposure under these arrangements is
    unknown as this would depend on future claims that may be made against the
    Fund. The risk of material loss from such claims is considered remote.

2.  RISKS AND UNCERTAINTIES

    A.  RISKS ASSOCIATED WITH FOCUSED INVESTING -- The Fund, although
        diversified, takes a focused approach to investing within particular
        industries or sectors of the economy and may invest in a relatively
        small number of individual holdings. Therefore, the Fund may be subject
        to greater price volatility and may be more adversely affected by the
        performance of particular industries, sectors, or individual holdings
        than would a more diversified fund. In addition, the Fund invests
        primarily in companies in the real estate industry, including REITs.
        Funds with a concentration are particularly susceptible to the impact
        of market, economic, regulatory and other factors affecting the
        specific concentration.

    B.  RISKS ASSOCIATED WITH FOREIGN INVESTMENTS -- The Fund may invest in
        securities issued by institutions, corporations and governments
        established by or located in foreign countries, which may be developed
        or undeveloped countries. Investing in foreign securities may involve
        significant risks. For example, there is generally less publicly
        available information about foreign companies, particularly those not
        subject to the disclosure and reporting requirements of the U.S.
        securities laws. Foreign issuers are generally not bound by uniform
        accounting, auditing, and financial reporting requirements and
        standards of practice comparable to those applicable to domestic
        issuers. Investments in foreign securities also involve the risk of
        possible adverse changes in investment or exchange control regulations,
        expropriation or confiscatory taxation, limitation on the removal of
        the Fund or other assets of the Fund, political or financial
        instability or diplomatic and other developments which could affect
        such investments. Foreign stock markets, while growing in volume and
        sophistication, are generally not as developed as those in the United
        States, and securities of some foreign issuers (particularly those
        located in developing countries) may be less liquid and more volatile
        than securities of comparable U.S. companies. In general, there is less
        overall governmental supervision and regulation of foreign securities
        markets, broker-dealers and issuers than in the United States.
        Additionally, because some foreign securities the Fund may acquire are
        purchased with and payable in foreign currencies, the value of these
        assets as measured in U.S. dollars may be affected favorably or
        unfavorably by changes in currency rates and exchange control
        regulations.

The Fund's Prospectus and Statement of Additional Information contain
additional information on other risks and uncertainties relating to the Fund's
investments.

3.  PURCHASES AND SALES OF SECURITIES -- For the period ended December 31, 2008,
purchases and sales of securities other than United States government
obligations and short-term investments aggregated $4,283,561,143 and
$4,105,833,505, respectively. There were no purchases or sales of long-term
United States government obligations.

4.  A.  MANAGEMENT FEES -- During the period ended December 31, 2008, the Fund
        incurred management fees of $14,799,499, paid or payable to the Fund's
        investment adviser, Capital Growth Management Limited Partnership
        (CGM), certain officers and employees of which are also officers and
        trustees of the Fund. The management agreement provides for a fee at
        the annual rate of 0.85% on the first $500 million of the Fund's
        average daily net assets and 0.75% on amounts in excess of $500
        million.

    B.  OTHER EXPENSES -- CGM performs certain administrative, accounting,
        compliance and other services for the Fund. The expenses of those
        services, which are paid to CGM by the Fund, include the following: (i)
        expenses for personnel performing bookkeeping, accounting and financial
        reporting functions and clerical functions relating to the Fund; (ii)
        expenses for services required in connection with the preparation of
        registration statements and prospectuses, shareholder reports and
        notices, proxy solicitation material furnished to shareholders of the
        Fund or regulatory authorities and reports and questionnaires for SEC
        compliance; (iii) registration, filing and other fees in connection
        with requirements of regulatory authorities; and (iv) compliance in
        connection to the Investment Company Act of 1940 and the Sarbanes Oxley
        Act of 2002. The accounting, administration and compliance expense of
        $246,255, for the period ended December 31, 2008, is shown separately
        in the financial statements. These expenses include the reimbursement
        of a portion of the compensation expenses incurred by CGM for its
        employees who provide these administrative, accounting, compliance, and
        other services to the Fund, including $180,597 of the salaries of CGM
        employees who are officers of the Fund.

    C.  TRUSTEES FEES AND EXPENSES -- The Fund does not pay any compensation
        directly to any trustees who are officers or employees of CGM, or any
        affiliate of CGM (other than registered investment companies). For the
        period ended December 31, 2008, each disinterested trustee was compen-
        sated by the Trust with an annual fee of $70,000 plus travel expenses
        for each meeting attended. The disinterested trustees are responsible
        for the audit committee functions of the Trust's Board and have
        designated a chairman to oversee those functions who receives an
        additional $30,000 annually. Of these amounts, the Fund is responsible
        for $9,000 per trustee annually, plus an annual variable fee calculated
        based on the proportion of the Fund's average net assets relative to
        the aggregate average net assets of the Trust.

5.  LINE OF CREDIT -- The Fund had a $20,000,000 committed unsecured line of
credit with State Street Bank and Trust Company. Borrowings under the line will
be charged interest at 0.75% over the current Overnight Federal Funds Rate. The
Fund incurs a commitment fee of 0.10% per annum on the unused portion of the
line of credit, payable quarterly, through June 17, 2009. There were no
borrowings under the line of credit during the period ended December 31, 2008.

6.  FASB 157 -- In September 2006, FASB issued Statement of Financial Accounting
Standards No. 157, (FAS 157) "Fair Value Measurements", effective for fiscal
years beginning after November 15, 2007. The Fund adopted the provisions of FAS
157 on January 1, 2008. FAS 157 defines fair value, establishes a framework for
measuring fair value in accordance with generally accepted accounting
principles and expands disclosure about fair value measurements.

In accordance with FAS 157, the Fund may use valuation techniques consistent
with the market, income, and cost approach to measure fair value. The market
approach uses prices and other relevant information generated by market
transactions involving identical or comparable assets or liabilities. The
income approach uses valuation techniques to convert future amounts (cash
flows, earnings) to a single present amount. The cost approach is based on the
amount that currently would be required to replace the service capacity of an
asset. To increase consistency and comparability in fair value measurements and
related disclosure, the Fund utilizes a fair value hierarchy which prioritizes
the various inputs to valuation techniques used to measure fair value into
three broad levels:

    o   Level 1 -- Prices determined using: quoted prices in active markets for
        identical securities

    o   Level 2 -- Prices determined using: other significant observable inputs
        (including quoted prices for similar securities, interest rates,
        prepayment spreads, credit risk, etc.)

    o   Level 3 -- Prices determined using: significant unobservable inputs. In
        situations where quoted prices or observable inputs are unavailable,
        (for example, when there is little or no market activity for an
        investment at the end of the period), unobservable inputs may be used.
        Unobservable inputs reflect the Fund's management's own assumptions
        about the factors market participants would use in pricing an
        investment, and would be based on the best information available in the
        circumstances.

The inputs or methodology used for valuing securities are not necessarily an
indication of the risk associated with investing in those securities. The
following is a summary of the inputs used to value CGM Realty Fund's
investments as of December 31, 2008:



                                                          INVESTMENTS      OTHER FINANCIAL
VALUATION INPUTS                                         IN SECURITIES       INSTRUMENTS
                                                         -------------     ---------------
                                                                           
Level 1 - Quoted Prices ............................    $1,013,234,500           N/A
Level 2 - Other Significant Observable Inputs ......        15,220,000           N/A
Level 3 - Significant Unobservable Inputs ..........         none                N/A
                                                        --------------        ---------
    TOTAL                                               $1,028,454,500           N/A
                                                        ==============        ---------


When current market prices or quotations are not readily available or do not
accurately reflect fair value, valuations may be determined in accordance with
procedures adopted by the Board of Trustees. For example, when developments
occur between the close of a market and the close of the NYSE that may
materially affect the value of some or all the securities, or when trading in a
security is halted, these procedures may be used. The frequency with which
these procedures are used is unpredictable. These valuation procedures may
result in a change to a particular security's assigned level within the fair
value hierarchy described above. The value of securities used for NAV
calculation under these procedures may differ from published prices for the
same securities.

7.  AFFILIATED ISSUERS -- Affiliated issuers, as defined under the Investment
Company Act of 1940, are those in which the Fund's holdings of an issuer
represent 5% or more of the outstanding voting securities of the issuer. The
following summarizes transactions with affiliates of the Fund during the period
ended December 31, 2008:



                                 NUMBER OF                                        NUMBER OF
                                SHARES HELD           GROSS          GROSS        SHARES HELD         DIVIDEND        MARKET VALUE
NAME OF ISSUER               DECEMBER 31, 2007      PURCHASES        SALES     DECEMBER 31, 2008       INCOME      DECEMBER 31, 2008
- --------------               -----------------      ---------        -----     -----------------      --------     -----------------
                                                                                                    
Developers Diversified
  Realty Corporation ....            --            10,200,000         --           10,200,000        $   --           $ 49,776,000
General Growth
  Properties, Inc.* .....            --            17,950,000     17,950,000           --                --                --
Home Properties, Inc. ...            --             1,800,000         --            1,800,000           616,487         73,080,000
Tanger Factory Outlet
  Centers, Inc.** .......        1,880,000            555,000      2,130,000          305,000         1,152,373            --
The Macerich Company ....        1,290,000          3,873,900      1,290,000        3,873,900            --             70,350,024
                                                                                                     ----------       ------------
                                                                                   Total             $1,768,860       $193,206,024
                                                                                                     ==========       ============

 * Position in issuer liquidated during the preceding twelve months.
** As of May 23, 2008 this security is no longer considered an affiliated issuer.



                                CGM REALTY FUND
- -------------------------------------------------------------------------------

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Trustees of CGM Trust and Shareholders of CGM Realty Fund:

In our opinion, the accompanying statement of assets and liabilities, including
the schedule of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of CGM Realty Fund (the "Fund", a
series of CGM Trust) at December 31, 2008, the results of its operations, the
changes in its net assets and the financial highlights for the periods
indicated, in conformity with accounting principles generally accepted in the
United States of America. These financial statements and financial highlights
(hereafter referred to as "financial statements") are the responsibility of the
Fund's management; our responsibility is to express an opinion on these
financial statements based on our audits. We conducted our audits of these
financial statements 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. An audit 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, and evaluating the overall financial
statement presentation. We believe that our audits, which included confirmation
of securities at December 31, 2008 by correspondence with the custodian and
brokers, provide a reasonable basis for our opinion.

PricewaterhouseCoopers LLP
Boston, Massachusetts
February 17, 2009


                                CGM REALTY FUND
- -------------------------------------------------------------------------------

ADDITIONAL INFORMATION
(unaudited)

AVAILABILITY OF PROXY VOTING INFORMATION:
Proxy voting policies and information regarding how the Fund voted proxies
relating to portfolio securities during the twelve month period ended June 30,
2008 are available without charge, upon request by calling 1-800-345-3048. The
policies also appear in the Fund's Statement of Additional Information, which
can be found on the SEC's website, http://www.sec.gov. The voting records can
also be found on the SEC's website on the N-PX filing.

PORTFOLIO HOLDINGS:
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 Forms N-Q
are available on the SEC's website at http://www.sec.gov and may be reviewed
and copied at the SEC's Public Reference Room in Washington, D.C. Information
on the operation of the Public Reference Room may be obtained by calling
1-800-SEC-0330.


                                CGM REALTY FUND
- -------------------------------------------------------------------------------

FUND EXPENSES

As a shareholder of CGM Realty Fund, you incur two types of costs: (1)
transaction costs, which could include, among other charges, wire fees and
custodial maintenance fees for certain types of accounts and (2) ongoing costs,
including management fees and other Fund expenses. This example is intended to
help you understand your ongoing costs (in dollars) of investing in the Fund
and to compare these costs with the ongoing costs of investing in other mutual
funds.

The example is based on an investment of $1,000 invested at the beginning of
the period and held for the entire period July 1, 2008 to December 31, 2008.

ACTUAL RETURN AND EXPENSES

The first line of the table below provides information about actual account
values and actual expenses. You may use the information in this line, together
with the amount you invested, to estimate the expenses that you paid over the
period. Simply divide your account value by $1,000 (for example, an $8,600
account value divided by $1,000 = 8.6), then multiply the result by the number
in the first line under the heading entitled "Expenses Paid During Period" to
estimate the expenses you paid on your account during this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

The second line of the table below provides information about hypothetical
account values and hypothetical expenses based on the Fund's actual expense
ratio and an assumed rate of return of 5% per year before expenses, which is
not the Fund's actual return. The hypothetical account values and expenses may
not be used to estimate the actual ending account balance or expenses you paid
for the period. You may use this information to compare the ongoing costs of
investing in the Fund and other funds. To do so, compare this 5% hypothetical
example with the 5% hypothetical examples that appear in the shareholder
reports of the other funds.

Please note that the expenses shown in the table are meant to highlight your
ongoing costs only and do not reflect any transactional costs such as any wire
fees or custodial maintenance fees that may be payable. Therefore, the second
line of the table is useful in comparing ongoing costs only, and will not help
you determine the relative total costs of owning different funds. In addition,
if these transactional costs were included, your costs would have been higher.

- --------------------------------------------------------------------------------
                              Beginning         Ending          Expenses Paid
                            Account Value    Account Value      During Period*
                               7/01/08         12/31/08       7/01/08 - 12/31/08
- --------------------------------------------------------------------------------
Actual                        $1,000.00        $  509.50             $3.34
- --------------------------------------------------------------------------------
Hypothetical
(5% return before expenses)   $1,000.00        $1,020.71             $4.47
- --------------------------------------------------------------------------------
* Expenses are equal to the Fund's annualized expense ratio of 0.88%,
  multiplied by the average account value over the period, multiplied by
  184/366 (to reflect the one-half year period).


                                CGM REALTY FUND
- -------------------------------------------------------------------------------

TAX INFORMATION (UNAUDITED) FOR THE TAX YEAR ENDED 12/31/2008

We are providing this information as required by the Internal Revenue Code. The
amounts shown may differ from those elsewhere in this report because of
differences between tax and financial reporting requirements. For the year
ended December 31, 2008, the Fund designated $0 as long-term capital dividends.

TRUSTEES AND OFFICERS

The Fund is supervised by the board of trustees (the "Board") of the Trust. The
Board is responsible for the general oversight of the Fund, including general
supervision and review of the Fund's investment activities. The Board, in turn,
elects the officers who are responsible for administering the Fund's day-to-day
operations. An asterisk in the table below identifies those trustees and
officers who are "interested persons" of the Trust as defined in the Investment
Company Act of 1940. Each trustee and officer of the Trust noted as an
interested person is interested by virtue of that individual's position with
CGM, the Fund's investment adviser, as described in the table below. Each
trustee serves during the continued lifetime of the Trust or until he earlier
dies, resigns or is removed, or if sooner, until the election and qualification
of his successor. Each officer serves until his or her successor is elected or
qualified or until the officer sooner dies, resigns, or is removed or becomes
disqualified.

The trustees and officers of the Trust, their ages, their principal occupations
during the past five years, the number of CGM Funds they oversee, and other
directorships they hold are set forth below. Unless otherwise noted below, the
address of each interested trustee and officer is One International Place,
Boston, Massachusetts 02110. Correspondence intended for the trustees who are
not "interested persons" of the Trust may be sent c/o Capital Growth Management,
One International Place, Boston, Massachusetts 02110. The Statement of
Additional Information for the Fund includes additional information about Fund
trustees and is available, without charge, upon request by calling the CGM
Marketing Department, toll free, at 800-345-4048.



                                                                        PRINCIPAL               NUMBER OF
                                                                        OCCUPATION             FUNDS IN THE
                                                                       DURING PAST               CGM FUNDS
                                        POSITION HELD AND           5 YEARS AND OTHER             COMPLEX
NAME, ADDRESS AND AGE                 LENGTH OF TIME SERVED         DIRECTORSHIPS HELD           OVERSEEN
- ---------------------                 ---------------------         ------------------         ------------
                                                                                           
INTERESTED TRUSTEES
G. Kenneth Heebner*                  Trustee since 1993             Co-founder and Employee,        3
  age 68                                                            CGM; Controlling Owner,
                                                                    Kenbob, Inc. (general
                                                                    partner of CGM)

Robert L. Kemp*                      Trustee since 1990             Co-founder and Employee,        3
  age 76                                                            CGM; Non-voting Owner,
                                                                    Kenbob, Inc. (general
                                                                    partner of CGM)
DISINTERESTED TRUSTEES
Peter O. Brown                       Trustee since 1993             Counsel (formerly,              3
  age 68                                                            Partner), Harter, Secrest
                                                                    & Emery LLP (law firm);
                                                                    formerly Executive Vice
                                                                    President and Chief
                                                                    Operating Officer, The
                                                                    Glenmeade Trust Company
                                                                    (from 1990 to 1993);
                                                                    formerly Senior Vice
                                                                    President, J.P. Morgan
                                                                    Chase Bank (from 1981-
                                                                    1990); Trustee, TT
                                                                    International U.S.A.
                                                                    Master and Feeder Trusts
                                                                    (four mutual funds)
                                                                    from 2000-2005

Mark W. Holland                      Trustee since 2004             President, Wellesley            3
  age 59                                                            Financial Advisors, LLC;
                                                                    (since 2003); formerly Vice
                                                                    President and Chief
                                                                    Operating Officer, Fixed
                                                                    Income Management, Loomis,
                                                                    Sayles & Company, L.P.;
                                                                    formerly Director, Loomis,
                                                                    Sayles & Company, L.P.
                                                                    (from 1999 to 2002)

James Van Dyke Quereau, Jr.          Trustee since 1993             Managing Partner and            3
  age 60                                                            Director, Stratton
                                                                    Management Company
                                                                    (investment management);
                                                                    Director and Vice
                                                                    President, Semper Trust
                                                                    Co.

J. Baur Whittlesey                   Trustee since 1990             Member, Ledgewood, P.C.         3
  age 62                                                            (law firm)

OFFICERS
G. Kenneth Heebner*                  Vice President since 1990      Co-founder and Employee,        3
  age 68                                                            CGM; Controlling Owner,
                                                                    Kenbob, Inc. (general
                                                                    partner of CGM)

Robert L. Kemp*                      President since 1990           Co-founder and Employee,        3
  age 76                                                            CGM; Non-voting Owner,
                                                                    Kenbob, Inc. (general
                                                                    partner of CGM)

David C. Fietze*                     Chief Compliance Officer       Employee - Legal counsel,       3
  age 39                             since 2004                     CGM; formerly  counsel,
  address:                                                          Bartlett Hackett
  38 Newbury Street                                                 Feinberg, P.C.
  Boston, Massachusetts
  02116

Kathleen S. Haughton*                Vice President since 1992      Employee - Investor             3
  age 48                             and Anti-Money Laundering      Services Division, CGM
  address:                           Compliance Officer since 2002
  38 Newbury Street
  Boston, Massachusetts
  02116

Jem A. Hudgins*                      Treasurer since 2004           Employee - CGM                  3
  age 45

Leslie A. Lake*                      Vice President and Secretary   Employee - Office               3
  age 63                             since 1992                     Administrator, CGM

Martha I. Maguire*                   Vice President since 1994      Employee - Funds                3
  age 53                                                            Marketing, CGM

Mary L. Stone*                       Assistant Vice President       Employee - Portfolio            3
  age 64                             since 1990                     Transactions, CGM


INVESTMENT ADVISER
CAPITAL GROWTH MANAGEMENT
LIMITED PARTNERSHIP
Boston, Massachusetts 02110

TRANSFER AND DIVIDEND PAYING
AGENT AND CUSTODIAN OF ASSETS
STATE STREET BANK AND TRUST COMPANY
Boston, Massachusetts 02111

SHAREHOLDER SERVICING AGENT
FOR STATE STREET BANK AND
TRUST COMPANY
BOSTON FINANCIAL DATA SERVICES, INC.
P.O. Box 8511
Boston, Massachusetts 02266-8511
- --------------------------------------------------

TELEPHONE NUMBERS
For information about:

[ ] Account Procedures and Status

[ ] Redemptions

[ ] Exchanges Call 800-343-5678

[ ] New Account Procedures

[ ] Prospectuses

[ ] Performance

[ ] Proxy Voting Policies and Voting Records

[ ] Complete Schedule of Portfolio Holdings for the
    1st & 3rd Quarters (as filed on Form N-Q)
    Call 800-345-4048
- --------------------------------------------------

MAILING ADDRESS
CGM Shareholder Services
c/o Boston Financial Data Services
P.O. Box 8511
Boston, MA 02266-8511
- --------------------------------------------------

- --------------------------------------------------
WEBSITE
http://www.cgmfunds.com
- --------------------------------------------------

This report has been prepared for the shareholders
of the Fund and is not authorized for distribution
to current or prospective investors in the Fund
unless it is accompanied or preceded by a
prospectus.

RAR 08                           Printed in U.S.A.


CGM
FOCUS FUND

12th Annual Report
December 31, 2008

A No-Load Fund

[logo] Investment Adviser
       CAPITAL GROWTH MANAGEMENT
       Limited Partnership

TO OUR SHAREHOLDERS:
- -------------------------------------------------------------------------------

CGM Focus Fund decreased -37.4% during the fourth quarter of 2008 compared to
the unmanaged Standard and Poor's 500 Index which fell -21.9% over the same
period. For the year just ended, CGM Focus Fund returned -48.2% and the S&P 500
Index, -37.0%.

THE YEAR IN REVIEW AND ECONOMIC OUTLOOK
In December, the National Bureau of Economic Research announced the U.S.
economy had, in fact, entered a recession twelve months earlier in December of
2007. To anyone in the homebuilding, banking, retail or investment banking
businesses, this came as no surprise ...

In the first quarter of 2008, Bear Stearns became the first victim of what was
to become a rapidly unfolding financial meltdown. J.P. Morgan purchased the
venerable investment house for a mere $10 per share and the government absorbed
some $29 billion of its mortgage backed securities. Although the Federal
Reserve Board had locked its sights on the housing market as early as August of
2007 when it began reducing the Federal Discount rate, in early 2008 the
government ratcheted up its efforts to counter plummeting home prices and
slowing consumer sales by proposing a $150 billion stimulus program which was
disbursed in May, June and July. By mid-year, the economy's prognosis was
improving as promising trends in trade, agriculture, energy and commodities
combined with fairly aggressive monetary policy and fiscal incentives pointed
to recovery. But, in a case of too much of a good thing, the price of crude oil
then skyrocketed to $147 per barrel, up from $70 one year earlier. Still, it
looked as though the government stimulus package was helping consumers absorb
the resulting $4.00 per gallon cost of gasoline and though the Fed continued to
mention inflation as an ongoing risk, the unemployment rate remained a
relatively low 5.5% in June. July's durable goods orders were up 1.3% and the
Consumer Confidence Index which had taken a hit the month before rebounded to
56.9 in August from 51.9 in July. September, however, was an altogether
different story.

On September 7, the federal government seized Freddie Mac and Fannie Mae, the
primary buyers of mortgages in the U.S. On September 10, Lehman Brothers
announced a $3.9 billion loss for the previous quarter. One week later, the
government agreed to loan American International Group $85 billion (later
increased to $150 billion) claiming AIG was "too big to fail." Lehman was left
to fend for itself and unable to find a buyer, fell victim to the crisis. Other
financial institutions sought assistance and the few remaining large
independent brokerage firms either merged with commercial banks or registered
as bank holding companies. Grudgingly, Congress approved the Troubled Asset
Relief Program (TARP) to the tune of $700 billion dollars, the first $350
billion of which largely went to shore up balance sheets throughout the banking
system. In early November, General Motors announced sales figures for October
were a full 45% lower than those of October 2007. GM principally blamed frozen
credit markets and its CEO along with the head of the UAW and leaders of the
other two major U.S. automobile firms took their case to Congress pleading for
billions of dollars in government loans. Congress excoriated the CEOs for
arriving from Detroit on separate private jets and seemed more interested in
executive compensation than in company overhead and labor costs versus the
competition. As the high drama was unfolding in Washington, the S&P 500
declined to 752.44 on November 20, 2008, down 52% from its all-time high
reached a little more than a year earlier in October 2007. The auto executives
were sent home empty-handed and told to return (via other transport) with
detailed plans for survival in a new, leaner environment. Two weeks later,
Detroit's CEOs made the return trip to the Capitol with plans in hand, but to
no avail: Congress did not approve their loans. Then, on December 19, the White
House intervened and allocated $17 billion in TARP funds to Chrysler and
General Motors in an effort to avert their bankruptcy. As a condition of the
loans, the companies must demonstrate financial viability by March 31, 2009.
Widespread doubt that loans to the auto companies will do anything more than
just kick the problem further down the road along with other factors weighed
heavily on the Consumer Confidence Index pushing it to 38 in December, the
lowest point in its 41-year history (and down from 90 just one year ago).

The year 2008 will figure prominently in economic history books as a year of
dramatic easing of monetary policy, starting with a Federal Funds rate of 4.25%
on January 1 (down from 5.25% in August 2007) to a low of 0% announced on
December 16, 2008 (described as a range of 0% to .25% given the difficulty of
managing a zero cost of money). Announcement of the latest cut promptly sank
the 10-year government bond to 2.12%, its lowest yield since 1951. Add to the
Fed's efforts the recent plunge in the price of oil to $40 per barrel which
translates into gasoline at less than $2.00 per gallon and money should make
its way back into the consumer's pocket.

For nearly sixteen months, the Fed, the Treasury Department and Congress have
done yeoman's duty in an effort to restore confidence, increase liquidity in
the financial system and rejuvenate the economy. We believe we are headed in
the right direction though it will take some time--possibly the better part
of 2009 or longer--to squeeze remaining toxic debt out of the system.

PORTFOLIO STRATEGY
CGM Focus Fund entered 2008 with substantial positions in energy, metals and
agricultural stocks with a more modest investment in Russian and Latin American
companies. We believed these securities would benefit from continued growth in
developing economies despite the emerging slowdown in the U.S. and Europe. The
stocks performed well through June 30.

The developing economies slowed in the summer of 2008 and joined more developed
countries as the decline accelerated in the fall of the year. We sold most of
our commodity-related stocks in the third quarter, but experienced major losses
before positions were eliminated or reduced. Proceeds from the sales were
reinvested in financial stocks and less economically sensitive companies, but
the escalating financial crisis took its toll on these issues during the fall
causing large losses in a number of our financial holdings. The Fund
experienced its most significant losses during 2008 in energy, emerging market
securities and Ford Motor Company though several financial companies also had
substantial declines. The only meaningful gain was realized from the short sale
of Washington Mutual.

At the end of the year, CGM Focus Fund held significant long positions in the
insurance, drug and metals and mining industries. The Fund's three largest long
holdings were Abbott Laboratories, MetLife, Inc. and Wal-Mart Stores, Inc.

              /s/ Robert L. Kemp

                  Robert L. Kemp
                  President

              /s/ G. Kenneth Heebner

                  G. Kenneth Heebner
                  Portfolio Manager

January 2, 2009

COMPARISONS OF CHANGE IN VALUE OF $10,000 INVESTMENT IN CGM FOCUS FUND, THE
UNMANAGED S&P 500 INDEX AND assuming reinvestment of dividends and capital
gains

- ----------------------------
      CGM FOCUS FUND
Average Annual Total Returns
      through 12/31/08
- ----------------------------
1 year    5 year    10 year
- -48.2%      8.6%     17.7%
- ----------------------------
   Past performance is no
indication of future results
- ----------------------------

                                 Unmanaged
                    CGM           S&P 500
                Focus Fund        Index
      ------------------------------------

      1998        $10,000         $10,000
      1999         10,850          12,100
      2000         16,698          10,999
      2001         24,663           9,690
      2002         20,273           7,549
      2003         33,755           9,716
      2004         37,941          10,775
      2005         47,502          11,303
      2006         54,627          13,089
      2007         98,329          13,809
      2008         50,934           8,700

CGM FOCUS FUND
PORTFOLIO MANAGER
- -------------------------------------------------------------------------------
G. Kenneth Heebner has managed CGM Focus Fund since its inception on September
3, 1997. In 1990, Mr. Heebner founded Capital Growth Management Limited
Partnership with Robert L. Kemp. Prior to establishing the new company, Mr.
Heebner managed mutual funds at Loomis, Sayles and Company. In addition to CGM
Focus Fund, he currently manages CGM Mutual Fund and CGM Realty Fund.

- -------------------------------------------------------------------------------
See the Schedule of Investments on pages 4 and 5 for the percentage of net
assets of the Fund invested in particular industries as of December 31, 2008.

INVESTMENT PERFORMANCE
(unaudited)
- -------------------------------------------------------------------------------
Cumulative Total Return for Periods Ended
December 31, 2008

                                                                       CGM
                                                                   FOCUS FUND
                                                                   ----------
10 Years .......................................................     +408.8%
 5 Years .......................................................     + 50.8
 1 Year ........................................................     - 48.2
 3 Months ......................................................     - 37.4

The performance data contained in the report represent past performance, which
is no guarantee of future results. The graph and table above do not reflect the
deduction of taxes a shareholder would pay on Fund distributions or the
redemption of Fund shares and assume the reinvestment of all Fund
distributions. The investment return and the principal value of an investment
in the Fund will fluctuate so that investors' shares, when redeemed, may be
worth more or less than their original cost. Current performance may be lower
or higher than the performance data quoted.

The adviser limited the Fund's total operating expenses to 1.20% of its average
net assets exclusive of any dividend expense incurred on short sales through
December 31, 2001. Otherwise, the Fund's cumulative total return and average
annual total return for the ten year period would have been lower.


                                                CGM FOCUS FUND
- ----------------------------------------------------------------------------------------------------------------

INVESTMENTS AS OF DECEMBER 31, 2008

COMMON STOCKS -- 99.0% OF TOTAL NET ASSETS


                                                                                       SHARES         VALUE(a)
                                                                                       ------         --------
                                                                                              

AUTO AND RELATED -- 3.4%
  Ford Motor Company (b) .......................................................      61,764,000    $  141,439,560
                                                                                                    --------------
BANKS - MONEY CENTER -- 4.5%
  Banco Bradesco S.A. ADR (c) ..................................................       6,000,000        59,220,000
  Banco Itau Holding Financeira S.A. ADR (c) ...................................      11,000,000       127,600,000
                                                                                                    --------------
                                                                                                       186,820,000
                                                                                                    --------------
BIOTECHNOLOGY -- 7.4%
  Celgene Corporation (b) ......................................................       1,900,000       105,032,000
  Gilead Sciences, Inc. (b) ....................................................       4,000,000       204,560,000
                                                                                                    --------------
                                                                                                       309,592,000
                                                                                                    --------------
BUSINESS SERVICES -- 4.9%
  Research In Motion Limited (b) ...............................................       5,000,000       202,900,000
                                                                                                    --------------
DRUGS -- 10.1%
  Abbott Laboratories ..........................................................       7,900,000       421,623,000
                                                                                                    --------------
EDUCATION -- 5.9%
  Apollo Group, Inc. (b) .......................................................       3,200,000       245,184,000
                                                                                                    -------------
HOSPITAL SUPPLY -- 5.6%
  Baxter International Inc. ....................................................       4,400,000       235,796,000
                                                                                                    --------------
HOTELS AND RESTAURANTS -- 5.6%
  McDonald's Corporation .......................................................       3,783,500       235,295,865
                                                                                                    --------------
INSURANCE -- 28.2%
  Aflac Incorporated ...........................................................       5,200,000       238,368,000
  MetLife, Inc. ................................................................      11,000,000       383,460,000
  Prudential Financial, Inc. ...................................................      10,359,000       313,463,340
  The Hartford Financial Services Group, Inc. ..................................      15,000,000       246,300,000
                                                                                                    --------------
                                                                                                     1,181,591,340
                                                                                                    --------------
INSURANCE BROKERS -- 2.2%
  Aon Corporation ..............................................................       2,010,000        91,816,800
                                                                                                    --------------
METALS AND MINING -- 9.8%
  Barrick Gold Corporation .....................................................       5,750,000       211,427,500
  Newmont Mining Corporation ...................................................       4,850,000       197,395,000
                                                                                                    --------------
                                                                                                       408,822,500
                                                                                                    --------------
MISCELLANEOUS -- 3.0%
  Berkshire Hathaway Inc. -- Class A (b) .......................................           1,300       125,580,000
                                                                                                    --------------
RETAIL -- 8.4%
  Wal-Mart Stores, Inc. ........................................................       6,250,000       350,375,000
                                                                                                    --------------
TOTAL COMMON STOCKS (Identified cost $4,408,557,566) ...........................................     4,136,836,065
                                                                                                    --------------


                                                                                        FACE
                                                                                       AMOUNT
                                                                                       ------
                                                                                              
SHORT-TERM INVESTMENT -- 0.2% OF TOTAL NET ASSETS
  American Express Credit Corporation, 0.01%, 01/02/09 (Cost $7,795,000) .......    $  7,795,000         7,795,000
                                                                                                    --------------
TOTAL INVESTMENTS -- 99.2% (Identified cost $4,416,352,566) ....................................     4,144,631,065
  Cash and receivables .........................................................................       208,026,674
  Liabilities ..................................................................................      (173,758,364)
                                                                                                    --------------
TOTAL NET ASSETS -- 100.0% .....................................................................    $4,178,899,375
                                                                                                    ==============

(a) See notes 1A and 6.
(b) Non-income producing security.
(c) An American Depositary Receipt (ADR) is a certificate issued by a U.S. bank representing the right to
    receive securities of the foreign issuer described. The values of ADRs are significantly influenced by
    trading on exchanges not located in the United States or Canada.

                                See accompanying notes to financial statements.



                                 CGM FOCUS FUND
- -------------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES

December 31, 2008

ASSETS
Investments at value
 (Identified cost -- $4,416,352,566) ..........................  $4,144,631,065
Cash ..........................................................           2,662
Receivable for:
  Securities sold ...............................  $183,420,563
  Shares of the Fund sold .......................     8,157,722
  Dividends and interest.........................    16,445,727     208,024,012
                                                   ------------  --------------
      Total assets ............................................   4,352,657,739
                                                                 --------------
LIABILITIES
Payable for:
  Securities purchased ..........................   148,766,025
  Shares of the Fund redeemed ...................    11,424,880
  Distributions declared ........................     7,599,624
  Tax withholding liability .....................     2,042,401     169,832,930
                                                   ------------
Accrued expenses:
  Management fees ...............................     3,284,344
  Trustees' fees ................................        48,319
  Accounting, administration and compliance
   expenses .....................................        58,284
  Transfer agent fees ...........................       250,865
  Other expenses ................................       283,622       3,925,434
                                                   ------------  --------------
      Total liabilities .........................                   173,758,364
                                                                 --------------
NET ASSETS ....................................................  $4,178,899,375
                                                                 ==============

Net Assets consist of:
  Capital paid-in .............................................  $7,304,026,117
  Accumulated net realized losses on investments ..............  (2,853,405,241)
  Net unrealized depreciation on investments ..................    (271,721,501)
                                                                 --------------
NET ASSETS ....................................................  $4,178,899,375
                                                                 ==============
Shares of beneficial interest outstanding, no par value .......     155,027,684
                                                                 ==============
Net asset value per share* ....................................          $26.96
                                                                         ======

* Shares of the Fund are sold and redeemed at net asset value
  ($4,178,899,375 / 155,027,684).

                See accompanying notes to financial statements.


                                 CGM FOCUS FUND
- -------------------------------------------------------------------------------

STATEMENT OF OPERATIONS

Year Ended December 31, 2008

INVESTMENT INCOME
Income:
  Dividends (net of withholding tax of $4,949,228) .........    $   110,736,700
  Interest on restricted cash ..............................          7,621,002
  Interest .................................................          2,069,216
                                                                ---------------
                                                                    120,426,918
                                                                ---------------

Expenses:
  Management fees ..........................................         61,082,103
  Trustees' fees ...........................................            171,461
  Accounting, administration and compliance expenses .......            651,031
  Custodian fees and expenses ..............................            754,708
  Transfer agent fees ......................................          1,531,277
  Audit and tax services ...................................             41,150
  Legal ....................................................            188,691
  Printing .................................................            257,470
  Registration fees ........................................            323,212
  Line of credit commitment fee ............................             41,464
  Dividends on short sales .................................          5,969,500
  Interest expense on short sales ..........................         19,901,420
  Miscellaneous expenses ...................................             10,018
                                                                ---------------
                                                                     90,923,505
                                                                ---------------
Net investment income ......................................         29,503,413
                                                                ---------------

REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
 AND FOREIGN CURRENCY TRANSACTIONS
  Net realized gains (losses) on investments and foreign
   currency transactions:
    Long transactions ......................................     (3,889,772,547)
    Short transactions .....................................      1,090,092,047
  Net unrealized depreciation on investments:
    Long transactions ......................................     (1,525,654,671)
    Short transactions .....................................       (238,524,105)
                                                                ---------------
  Net realized and unrealized losses on investments
   and foreign currency transactions .......................     (4,563,859,276)
                                                                ---------------
CHANGE IN NET ASSETS FROM OPERATIONS .......................    $(4,534,355,863)
                                                                ===============

                See accompanying notes to financial statements.



                                                     CGM FOCUS FUND
- -------------------------------------------------------------------------------------------------------------------------

STATEMENT OF CHANGES IN NET ASSETS


                                                                                             YEAR ENDED DECEMBER 31,
                                                                                       ----------------------------------
                                                                                             2008               2007
                                                                                       ---------------     --------------
FROM OPERATIONS
                                                                                                     
  Net investment income ...........................................................    $    29,503,413     $    4,578,837
  Net realized gains (losses) on investments and foreign currency transactions ....     (2,799,680,500)       861,947,842
  Net unrealized appreciation (depreciation) ......................................     (1,764,178,776)     1,197,002,190
                                                                                       ---------------     --------------
    Change in net assets from operations ..........................................     (4,534,355,863)     2,063,528,869
                                                                                       ---------------     --------------
FROM DISTRIBUTIONS TO SHAREHOLDERS
  Net investment income ...........................................................        (33,932,273)        (4,608,973)
  Net short-term realized capital gains on investments ............................                 --       (727,774,379)
  Net long-term realized capital gains on investments .............................                 --       (150,234,755)
                                                                                       ---------------     --------------
                                                                                           (33,932,273)      (882,618,107)
                                                                                       ---------------     --------------
FROM CAPITAL SHARE TRANSACTIONS
  Proceeds from sale of shares ....................................................      5,691,991,908      2,144,201,168
  Net asset value of shares issued in connection with the acquisition of assets
   from CGM Capital Development Fund (Note 7) .....................................        531,703,625                 --
  Net asset value of shares issued in connection with reinvestment of:
    Dividends from net investment income ..........................................         25,544,420          3,733,219
    Distributions from net short-term realized capital gains on investments .......                 --        610,369,415
    Distributions from net long-term realized capital gains on investments ........                 --        126,003,069
                                                                                       ---------------     --------------
                                                                                         6,249,239,953      2,884,306,871
  Cost of shares redeemed .........................................................     (3,038,166,008)      (801,142,829)
                                                                                       ---------------     --------------
    Change in net assets derived from capital share transactions ..................      3,211,073,945      2,083,164,042
                                                                                       ---------------     --------------
  Total change in net assets ......................................................     (1,357,214,191)     3,264,074,804

NET ASSETS
  Beginning of period .............................................................      5,536,113,566      2,272,038,762
                                                                                       ---------------     --------------
  End of period ...................................................................    $ 4,178,899,375     $5,536,113,566
                                                                                       ===============     ==============
NUMBER OF SHARES OF THE FUND:
  Issued from sale of shares ......................................................        115,498,465         43,255,062
  Issued in connection with the acquisition of assets from CGM Capital
   Development Fund (Note 7) ......................................................          8,723,604                 --
  Issued in connection with reinvestment of:
    Dividends from net investment income ..........................................            960,799             70,845
    Distributions from net short-term realized capital gains on investments .......                 --         11,588,559
    Distributions from net long-term realized capital gains on investments ........                 --          2,392,312
                                                                                       ---------------     --------------
                                                                                           125,182,868         57,306,778
  Redeemed ........................................................................        (75,626,212)       (17,341,601)
                                                                                       ---------------     --------------
  Net change ......................................................................         49,556,656         39,965,177
                                                                                       ===============     ==============

                                    See accompanying notes to financial statements.




                                                         CGM FOCUS FUND
- --------------------------------------------------------------------------------------------------------------------------------

FINANCIAL HIGHLIGHTS


                                                                                FOR THE YEAR ENDED DECEMBER 31,
                                                               -----------------------------------------------------------------
                                                                  2008            2007         2006            2005        2004
                                                                  ----            ----         ----            ----        ----
                                                                                                           
For a share of the Fund outstanding throughout each period:

Net asset value at the beginning of period ................       $52.49          $34.68       $33.40          $29.51     $29.93
                                                                  ------          ------       ------          ------     ------
Net investment income (a)(b) ..............................         0.20            0.06         0.82            0.52       0.04
Net realized and unrealized gains (losses) on investments
 and foreign currency transactions ........................       (25.51)          27.71         4.19            6.93       3.65
                                                                  ------          ------       ------          ------     ------
Total from investment operations ..........................       (25.31)          27.77         5.01            7.45       3.69
                                                                  ------          ------       ------          ------     ------
Dividends from net investment income ......................        (0.22)          (0.05)       (0.81)          (0.44)     (0.04)
Distribution from net short-term realized gains ...........           --           (8.21)          --           (1.80)        --
Distribution from net long-term realized gains ............           --           (1.70)       (2.92)          (1.32)     (4.07)
                                                                  ------          ------       ------          ------     ------
Total distributions .......................................        (0.22)          (9.96)       (3.73)          (3.56)     (4.11)
                                                                  ------          ------       ------          ------     ------
Net increase (decrease) in net asset value ................       (25.53)          17.81         1.28            3.89      (0.42)
                                                                  ------          ------       ------          ------     ------
Net asset value at end of period ..........................       $26.96          $52.49       $34.68          $33.40     $29.51
                                                                  ======          ======       ======          ======     ======
Total return (%) ..........................................        (48.2)           80.0         15.0(c)         25.2       12.4

Ratios:
Operating expenses to average net assets (%) ..............         0.97            0.99         1.02            1.07       1.12
Dividends and interest on short positions to
 average net assets (%) ...................................         0.39            0.28         0.18            0.15       0.09
                                                                  ------          ------       ------          ------     ------
Total expenses to average net assets (%) ..................         1.36            1.27         1.20            1.22       1.21
                                                                  ======          ======       ======          ======     ======
Net investment income to average net assets (%) ...........         0.44            0.14         2.23            1.55       0.14
Portfolio turnover (%) ....................................          504(d)          384          333             282        327
Net assets at end of period (in thousands) ($) ............    4,178,899       5,536,114    2,272,039       1,641,143    918,837

(a) Per share net investment income (loss) has been calculated using the average shares outstanding during the period.

(b) Net investment income (loss) per share excluding all related short sale income and expenses for the period ended December
    31, 2004 was $0.06, for the period ended December 31, 2005 was $0.23, for the period ended December 31, 2006 was $0.36, for
    the period ended December 31, 2007 was ($0.02) and for the period ended December 31, 2008 was $0.32.

(c) In 2006, the Fund's total return includes a voluntary reimbursement by the adviser for a realized investment loss. Excluding
    this item, the total return would have been 0.01% less.

(d) Portfolio turnover excludes the impact of assets resulting from a merger with another fund. (See Note 7 of Notes to the
    Financial Statements.)

                                         See accompanying notes to financial statements.



                                 CGM FOCUS FUND
- -------------------------------------------------------------------------------

NOTES TO FINANCIAL STATEMENTS -- DECEMBER 31, 2008

1.  The Fund is a non-diversified series of CGM Trust which is organized as a
Massachusetts business trust under the laws of Massachusetts pursuant to an
Agreement and Declaration of Trust. The Trust is registered under the
Investment Company Act of 1940 as an open-end management investment company.
The Trust has two other funds whose financial statements are not presented
herein. The Fund commenced operations on September 3, 1997. The Fund's
investment objective is long-term growth of capital. The Fund intends to pursue
its objective by investing in a smaller number of companies, and/or in a more
limited number of sectors than diversified mutual funds. In addition, should
the investment outlook of the Fund's investment manager so warrant, the Fund
may engage in a variety of investment techniques including short sales designed
to capitalize on declines in the market price of specific equity securities of
one or more companies or declines in market indexes.

The following is a summary of significant accounting policies consistently
followed by the Fund in the preparation of its financial statements. The
preparation of financial statements in accordance with accounting principles
generally accepted in the United States of America requires management to make
estimates and assumptions that affect the reported amounts and disclosures in
the financial statements. Actual results could differ from those estimates.

A.  SECURITY VALUATION -- Equity securities are valued on the basis of
    valuations furnished by a pricing service, authorized by the Board of
    Trustees. Equity securities listed or regularly traded on a securities
    exchange or in the over-the-counter (OTC) market are valued at the last
    quoted sale price or, for certain markets, the official closing price at
    the time the valuations are made. A security that is listed or traded on
    more than one exchange is valued at the quotation on the exchange
    determined to be the primary market for such security. For securities with
    no sale reported, the last reported bid price is used for long positions
    and the last reported ask price for short positions. Short-term investments
    having a maturity of sixty days or less are stated at amortized cost, which
    approximates value. Other assets and securities which are not readily
    marketable will be valued in good faith at fair value using methods
    determined by the Board of Trustees.

B.  SECURITY TRANSACTIONS AND RELATED INVESTMENT INCOME -- Security
    transactions are accounted for on the trade date (date the order to buy or
    sell is executed) and dividend income is recorded on the ex-dividend date
    net of applicable foreign taxes. Interest income is recorded on the accrual
    basis and includes amortization of premium and discount. Net gain or loss
    on securities sold is determined on the identified cost basis.

C.  FEDERAL INCOME TAXES -- It is the Fund's policy to comply with the
    requirements of the Internal Revenue Code applicable to regulated
    investment companies, and to distribute to its shareholders all of its
    taxable income and net realized capital gains, within the prescribed time
    period. Accordingly, no provision for federal income tax has been made.
    The Fund adopted the provisions of the Financial Accounting Standards
    Board ("FASB") Interpretation No. 48, Accounting for Uncertainty in
    Income Taxes, an interpretation of FASB Statement 109 ("FIN 48"), on
    January 1, 2007. FIN 48 prescribes a minimum threshold for financial
    statement recognition of the benefit of a tax position taken or expected to
    be taken in a tax return. The implementation of FIN 48, which included a
    review of the Fund's tax return of each of the three open tax years, did
    not result in any unrecognized tax benefits in the accompanying financial
    statements. Management's conclusion regarding FIN 48 may be subject to
    review and adjustment at a later date based on factors including, but not
    limited to, ongoing analysis of tax laws, regulations and interpretations
    thereof.

    At December 31, 2008, the Fund had available for tax purposes, capital loss
    carryovers of $2,023,250,733 expiring December 31, 2016.

    As of December 31, 2008, the components of distributable earnings on a tax
    basis were as follows:

     UNDISTRIBUTED       UNDISTRIBUTED LONG-TERM           NET UNREALIZED
    ORDINARY INCOME           CAPITAL GAINS         APPRECIATION/(DEPRECIATION)
    ---------------      -----------------------    ---------------------------
          $--                      $--                    $(1,101,876,010)

    The identified cost of investments in securities, held long, owned by the
    Fund for federal income tax purposes, and their respective gross unrealized
    appreciation and depreciation at December 31, 2008 was as follows:

                       GROSS UNREALIZED    GROSS UNREALIZED      NET UNREALIZED
    IDENTIFIED COST      APPRECIATION        DEPRECIATION         DEPRECIATION
    ---------------    ----------------    ----------------      --------------
     $5,246,507,075       $98,970,442      $(1,200,846,452)     $(1,101,876,010)

D.  DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- Dividends and distributions
    are recorded by the Fund on the ex-dividend date. The classification of
    income and capital gains distributions is determined in accordance with
    income tax regulations. Distributions from net investment income and
    short-term capital gains are treated as ordinary income for income tax
    purposes. Permanent book and tax differences relating to shareholder
    distributions may result in reclassifications to paid-in capital or
    accumulated realized gain/loss. These differences are primarily related to
    dividends on short positions which were held less than forty-five days and
    foreign currency gains/losses. The Fund also utilized earnings and profits
    distributed to shareholders on redemption of shares as a part of the
    dividend deduction for income tax purposes. Undistributed net investment
    income or accumulated net investment loss may include temporary book and
    tax differences such as tax deferral of losses on wash sales, which will
    reverse in a subsequent period. Any taxable income or gain remaining at
    fiscal year end is distributed in the following year. The tax character
    of distributions paid during the period ended December 31, 2008 and 2007,
    were as follows:

                                       LONG-TERM
    YEAR      ORDINARY INCOME        CAPITAL GAINS             TOTAL
    ----      ---------------        -------------             -----
    2008        $ 33,932,273          $         --         $ 33,932,273
    2007        $732,383,352          $150,234,755         $882,618,107

E.  SHORT SALES -- The Fund may sell securities short. A short sale is a
    transaction in which the Fund sells a security it does not own in
    anticipation that the market price of that security will decline. When the
    Fund makes a short sale, it must borrow the security sold short to make
    delivery to the buyer. The Fund then is obligated to replace the security
    borrowed by purchasing the security at the market price at the time of
    replacement. The Fund is liable for any dividends or interest paid on
    securities sold short. While the short sale is outstanding, the Fund is
    required to collateralize its obligations, which has the practical effect
    of limiting the extent to which the Fund may engage in short sales. Under
    certain market conditions, short sales can increase the volatility of the
    Fund and may lower the Fund's return or result in losses, which potentially
    may be unlimited.

F.  INDEMNITIES -- In the normal course of business, the Fund may enter into
    contracts that provide indemnities to third parties for various potential
    losses and claims. The Fund's maximum exposure under these arrangements is
    unknown as this would depend on future claims that may be made against the
    Fund. The risk of material loss from such claims is considered remote.

G.  FOREIGN CURRENCY TRANSLATION -- All assets and liabilities initially
    expressed in terms of foreign currencies are translated into U.S.
    dollars. Transactions affecting statement of operations accounts and net
    realized gain/(loss) on investments are translated at the rates prevailing
    at the dates of the transactions. The Fund does not isolate that portion of
    the results of operations resulting from changes in foreign exchange rates
    on investments from the fluctuations arising from changes in market prices
    of securities held. Such fluctuations are included with the net realized
    and unrealized gain or loss from investments. Reported net realized foreign
    exchange gains or losses arise from sales of foreign currency, currency
    gains or losses realized between the trade and settlement dates on
    securities transactions and the difference between the amounts of
    dividends, interest, and foreign withholding taxes recorded on the Fund's
    books and the U.S. dollar equivalent of the amounts actually received or
    paid. Net unrealized foreign exchange gains or losses arise from changes in
    the value of assets and liabilities other than investments in securities at
    the end of the period, resulting from changes in the exchange rate.

2.  RISKS AND UNCERTAINTIES

    A.  NON-DIVERSIFICATION RISK -- The Fund is non-diversified, meaning it may
        invest a significant portion of its investments within a single
        industry or sector of the economy or in fewer individual holdings than
        a diversified fund. Therefore, the Fund may be subject to greater price
        volatility and may be more adversely affected by the performance of
        particular industries, sectors, or individual holdings than would a
        diversified fund. In addition, under certain circumstances the Fund may
        invest up to 70% of its assets in the crude petroleum and natural gas
        industry and the petroleum refining industry. Funds with a
        concentration are particularly susceptible to the impact of market,
        economic, regulatory and other factors affecting the specific
        concentration.

    B.  RISKS ASSOCIATED WITH FOREIGN INVESTMENTS -- The Fund may invest in
        securities issued by institutions, corporations and governments
        established by or located in foreign countries, which may be developed
        or undeveloped countries. Investing in foreign securities may involve
        significant risks. For example, there is generally less publicly
        available information about foreign companies, particularly those not
        subject to the disclosure and reporting requirements of the U.S.
        securities laws. Foreign issuers are generally not bound by uniform
        accounting, auditing, and financial reporting requirements and
        standards of practice comparable to those applicable to domestic
        issuers. Investments in foreign securities also involve the risk of
        possible adverse changes in investment or exchange control regulations,
        expropriation or confiscatory taxation, limitation on the removal of
        the Fund or other assets of the Fund, political or financial
        instability or diplomatic and other developments which could affect
        such investments. Foreign stock markets, while growing in volume and
        sophistication, are generally not as developed as those in the United
        States, and securities of some foreign issuers (particularly those
        located in developing countries) may be less liquid and more volatile
        than securities of comparable U.S. companies. In general, there is less
        overall governmental supervision and regulation of foreign securities
        markets, broker-dealers and issuers than in the United States.
        Additionally, because some foreign securities the Fund may acquire are
        purchased with and payable in foreign currencies, the value of these
        assets as measured in U.S. dollars may be affected favorably or
        unfavorably by changes in currency rates and exchange control
        regulations.

The Fund's Prospectus and Statement of Additional Information contain
additional information on other risks and uncertainties relating to the Fund's
investments.

3.  PURCHASES AND SALES OF SECURITIES -- For the period ended December 31, 2008,
purchases and sales of securities other than United States government
obligations and short-term investments aggregated $37,343,261,566 and
$33,486,830,412, respectively, which excludes securities resulting from a
merger with another fund. (See Note 7.) There were no purchases or sales of
long-term United States government obligations for the period ended December
31, 2008.

4.  A.  MANAGEMENT FEES -- During the period ended December 31, 2008, the Fund
        incurred management fees of $61,082,103, paid or payable to the Fund's
        investment adviser, Capital Growth Management Limited Partnership
        ("CGM"), certain officers and employees of which are also officers and
        trustees of the Fund. The management agreement provides for a fee at
        the annual rate of 1.00% on the first $500 million of the Fund's
        average daily net assets, 0.95% of the next $500 million and 0.90% on
        amounts in excess of $1 billion.

    B.  OTHER EXPENSES -- CGM performs certain administrative, accounting,
        compliance and other services for the Fund. The expenses of those
        services, which are paid to CGM by the Fund, include the following: (i)
        expenses for personnel performing bookkeeping, accounting and financial
        reporting functions and clerical functions relating to the Fund; (ii)
        expenses for services required in connection with the preparation of
        registration statements and prospectuses, shareholder reports and
        notices, proxy questionnaires for SEC compliance; (iii) registration,
        filing and other fees in connection with requirements of regulatory
        authorities; and (iv) compliance in connection to the Investment
        Company Act of 1940 and the Sarbanes Oxley Act of 2002. The accounting,
        administration and compliance expense of $651,031, for the period ended
        December 31, 2008, is shown separately in the financial statements.
        These expenses include the reimbursement of a portion of the compensa-
        tion expenses incurred by CGM for its employees who provide these
        administrative, accounting, compliance, and other services to the Fund,
        including $462,156 of the salaries of CGM employees who are officers of
        the Fund.

    C.  TRUSTEES FEES AND EXPENSES -- The Fund does not pay any compensation
        directly to any trustees who are officers or employees of CGM, or any
        affiliate of CGM (other than registered investment companies). For the
        period ended December 31, 2008, each disinterested trustee was compen-
        sated by the Trust with an annual fee of $70,000 plus travel expenses
        for each meeting attended. The disinterested trustees are responsible
        for the audit committee functions of the Trust's Board and have
        designated a chairman to oversee those functions who receives an
        additional $30,000 annually. Of these amounts, the Fund is responsible
        for $18,000 per trustee annually, plus an annual variable fee
        calculated based on the proportion of the Fund's average net assets
        relative to the aggregate average net assets of the Trust.

5.  LINE OF CREDIT -- The Fund has a $40,000,000 committed, secured line of
credit with State Street Bank and Trust Company. Borrowings under the line will
be charged interest at 0.75% over the current Overnight Federal Funds Rate. The
Fund incurred a commitment fee of 0.10% per annum through October 20, 2008 and
then incurs a commitment fee at 0.11% per annum on the unused portion of the
line of credit, payable quarterly, through October 19, 2009. There were no
borrowings under the line of credit during the period ended December 31, 2008.

6.  FASB 157 -- In September 2006, FASB issued Statement of Financial Accounting
Standards No. 157, (FAS 157) "Fair Value Measurements", effective for fiscal
years beginning after November 15, 2007. The Fund adopted the provisions of FAS
157 on January 1, 2008. FAS 157 defines fair value, establishes a framework for
measuring fair value in accordance with generally accepted accounting
principles and expands disclosure about fair value measurements.

In accordance with FAS 157, the Fund may use valuation techniques consistent
with the market, income, and cost approach to measure fair value. The market
approach uses prices and other relevant information generated by market
transactions involving identical or comparable assets or liabilities. The
income approach uses valuation techniques to convert future amounts (cash
flows, earnings) to a single present amount. The cost approach is based on the
amount that currently would be required to replace the service capacity of an
asset. To increase consistency and comparability in fair value measurements and
related disclosure, the Fund utilizes a fair value hierarchy which prioritizes
the various inputs to valuation techniques used to measure fair value into
three broad levels:

    o   Level 1 -- Prices determined using: quoted prices in active markets for
        identical securities

    o   Level 2 -- Prices determined using: other significant observable inputs
        (including quoted prices for similar securities, interest rates,
        prepayment spreads, credit risk, etc.)

    o   Level 3 -- Prices determined using: significant unobservable inputs. In
        situations where quoted prices or observable inputs are unavailable
        (for example, when there is little or no market activity for an
        investment at the end of the period), unobservable inputs may be used.
        Unobservable inputs reflect the Fund's management's own assumptions
        about the factors market participants would use in pricing an
        investment, and would be based on the best information available in the
        circumstances.

The inputs or methodology used for valuing securities are not necessarily an
indication of the risk associated with investing in those securities. The
following is a summary of the inputs used to value CGM Focus Fund's investments
and securities sold short as of December 31, 2008:



                                                          ASSETS --       LIABILITIES --
                                                         INVESTMENTS        SECURITIES      OTHER FINANCIAL
VALUATION INPUTS                                        IN SECURITIES       SOLD SHORT        INSTRUMENTS
                                                        -------------     --------------    ---------------
                                                                                         
Level 1 - Quoted Prices............................    $4,136,836,065          none               N/A
Level 2 - Other Significant Observable Inputs......         7,795,000          none               N/A
Level 3 - Significant Unobservable Inputs..........         none               none               N/A
                                                       --------------        --------           -------
    TOTAL                                              $4,144,631,065          none               N/A
                                                       ==============        ========           =======


When current market prices or quotations are not readily available or do not
accurately reflect fair value, valuations may be determined in accordance with
procedures adopted by the Board of Trustees. For example, when developments
occur between the close of a market and the close of the NYSE that may
materially affect the value of some or all the securities, or when trading in a
security is halted, these procedures may be used. The frequency with which
these procedures are used is unpredictable. These valuation procedures may
result in a change to a particular security's assigned level within the fair
value hierarchy described above. The value of securities used for NAV
calculation under these procedures may differ from published prices for the
same securities.

7.  ACQUISITION OF FUND -- On June 27, 2008, CGM Focus Fund acquired all the net
assets of CGM Capital Development Fund pursuant to a Plan of Reorganization
approved by CGM Capital Development Fund shareholders on June 20, 2008. The
acquisition was accomplished by a tax-free exchange of 8,723,604 shares of CGM
Focus Fund (valued at $60.95 per share) for the 20,485,043 shares of CGM
Capital Development Fund outstanding on June 27, 2008 (an exchange ratio of
0.42585234). CGM Capital Development Fund's net assets at that date
($531,703,625), including $32,747,755 of unrealized appreciation, were combined
with those of CGM Focus Fund. The aggregate net assets of CGM Focus Fund
immediately before the acquisition were $9,656,099,353. The combined net assets
of CGM Focus Fund immediately following the acquisition were $10,187,802,978.


                                 CGM FOCUS FUND
- -------------------------------------------------------------------------------

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Trustees of CGM Trust and Shareholders of CGM Focus Fund:

In our opinion, the accompanying statement of assets and liabilities, including
the schedule of investments, and the related statements of operations, and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of CGM Focus Fund (the "Fund," a
series of CGM Trust) at December 31, 2008, the results of its operations, the
changes in its net assets, and the financial highlights for the periods
indicated, in conformity with accounting principles generally accepted in the
United States of America. These financial statements and financial highlights
(hereafter referred to as "financial statements") are the responsibility of the
Fund's management; our responsibility is to express an opinion on these
financial statements based on our audits. We conducted our audits of these
financial statements 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. An audit 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, and evaluating the overall financial
statement presentation. We believe that our audits, which included confirmation
of securities at December 31, 2008 by correspondence with the custodian and
brokers, provide a reasonable basis for our opinion.

PricewaterhouseCoopers LLP
Boston, Massachusetts
February 17, 2009


                                 CGM FOCUS FUND
- -------------------------------------------------------------------------------

ADDITIONAL INFORMATION
(unaudited)

AVAILABILITY OF PROXY VOTING INFORMATION:
Proxy voting policies and information regarding how the Fund voted proxies
relating to portfolio securities during the twelve month period ended June 30,
2008 are available without charge, upon request by calling 1-800-345-3048. The
policies also appear in the Fund's Statement of Additional Information, which
can be found on the SEC's website, http://www.sec.gov. The voting records can
also be found on the SEC's website on the N-PX filing.

PORTFOLIO HOLDINGS:
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 Forms N-Q
are available on the SEC's website at http://www.sec.gov and may be reviewed
and copied at the SEC's Public Reference Room in Washington, D.C. Information
on the operation of the Public Reference Room may be obtained by calling
1-800-SEC-0330.


                                 CGM FOCUS FUND
- -------------------------------------------------------------------------------

FUND EXPENSES

As a shareholder of CGM Focus Fund, you incur two types of costs: (1)
transaction costs, which could include, among other charges, wire fees and
custodial maintenance fees for certain types of accounts and (2) ongoing costs,
including management fees and other Fund expenses. This example is intended to
help you understand your ongoing costs (in dollars) of investing in the Fund
and to compare these costs with the ongoing costs of investing in other mutual
funds.

The example is based on an investment of $1,000 invested at the beginning of
the period and held for the entire period July 1, 2008 to December 31, 2008.

ACTUAL RETURN AND EXPENSES
The first line of the table below provides information about actual account
values and actual expenses. You may use the information in this line, together
with the amount you invested, to estimate the expenses that you paid over the
period. Simply divide your account value by $1,000 (for example, an $8,600
account value divided by $1,000 = 8.6), then multiply the result by the number
in the first line under the heading entitled "Expenses Paid During Period" to
estimate the expenses you paid on your account during this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES
The second line of the table below provides information about hypothetical
account values and hypothetical expenses based on the Fund's actual expense
ratio and an assumed rate of return of 5% per year before expenses, which is
not the Fund's actual return. The hypothetical account values and expenses may
not be used to estimate the actual ending account balance or expenses you paid
for the period. You may use this information to compare the ongoing costs of
investing in the Fund and other funds. To do so, compare this 5% hypothetical
example with the 5% hypothetical examples that appear in the shareholder
reports of the other funds.

Please note that the expenses shown in the table are meant to highlight your
ongoing costs only and do not reflect any transactional costs such as any wire
fees or custodial maintenance fees that may be payable. Therefore, the second
line of the table is useful in comparing ongoing costs only, and will not help
you determine the relative total costs of owning different funds. In addition,
if these transactional costs were included, your costs would have been higher.

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

                              Beginning         Ending         Expenses Paid
                            Account Value    Account Value     During Period*
                               7/01/08         12/31/08      7/01/08 - 12/31/08
- -------------------------------------------------------------------------------
Actual                        $1,000.00        $  442.30            $5.55
- -------------------------------------------------------------------------------
Hypothetical
(5% return before expenses)   $1,000.00        $1,017.44            $7.76
- -------------------------------------------------------------------------------

* Expenses are equal to the Fund's annualized expense ratio of 1.53%,
  multiplied by the average account value over the multiplied by 184/366 (to
  reflect the one-half year period).

TAX INFORMATION (UNAUDITED) FOR THE TAX YEAR ENDED 12/31/2008

We are providing this information as required by the Internal Revenue Code. The
amounts shown may differ from those elsewhere in this report because of
differences between tax and financial reporting requirements.

For the year ended December 31, 2008, the Fund designated $0 as long-term
capital dividends.

                                 CGM FOCUS FUND
- -------------------------------------------------------------------------------

TRUSTEES AND OFFICERS

The Fund is supervised by the board of trustees (the "Board") of the Trust. The
Board is responsible for the general oversight of the Fund, including general
supervision and review of the Fund's investment activities. The Board, in turn,
elects the officers who are responsible for administering the Fund's day-to-day
operations.

An asterisk in the table below identifies those trustees and officers who are
"interested persons" of the Trust as defined in the Investment Company Act of
1940. Each trustee and officer of the Trust noted as an interested person is
interested by virtue of that individual's position with CGM, the Fund's
investment adviser, as described in the table below. Each trustee serves during
the continued lifetime of the Trust or until he earlier dies, resigns or is
removed, or if sooner, until the election and qualification of his successor.
Each officer serves until his or her successor is elected or qualified or until
the officer sooner dies, resigns, or is removed or becomes disqualified.

The trustees and officers of the Trust, their ages, their principal occupations
during the past five years, the number of CGM Funds they oversee, and other
directorships they hold are set forth below. Unless otherwise noted below, the
address of each interested trustee and officer is One International Place,
Boston, Massachusetts 02110. Correspondence intended for the trustees who are
not "interested persons" of the Trust may be sent c/o Capital Growth Management,
One International Place, Boston, Massachusetts 02110. The Statement of
Additional Information for the Fund includes additional information about Fund
trustees and is available, without charge, upon request by calling the CGM
Marketing Department, toll free, at 800-345-4048.



                                                                                                                     NUMBER OF
                                                                                                                   FUNDS IN THE
                                                                         PRINCIPAL OCCUPATION DURING                 CGM FUNDS
                                    POSITION HELD AND                          PAST 5 YEARS AND                       COMPLEX
NAME, ADDRESS AND AGE             LENGTH OF TIME SERVED                    OTHER DIRECTORSHIPS HELD                  OVERSEEN
- ---------------------             ---------------------                  ---------------------------               ------------
                                                                                                               
INTERESTED TRUSTEES
G. Kenneth Heebner*              Trustee since 1993             Co-founder and Employee, CGM;                            3
  age 68                                                        Controlling Owner, Kenbob, Inc. (general
                                                                partner of CGM)

Robert L. Kemp*                  Trustee since 1990             Co-founder and Employee, CGM; Non-voting                 3
  age 76                                                        Owner, Kenbob, Inc. (general partner of CGM)

DISINTERESTED TRUSTEES
Peter O. Brown                   Trustee since 1993             Counsel (formerly, Partner), Harter,                     3
  age 68                                                        Secrest & Emery LLP (law firm); formerly
                                                                Executive Vice President and Chief
                                                                Operating Officer, The Glenmeade Trust
                                                                Company (from 1990 to 1993); formerly
                                                                Senior Vice President, J.P. Morgan Chase
                                                                Bank (from 1981-1990); Trustee, TT
                                                                International U.S.A. Master and Feeder
                                                                Trusts (four mutual funds) from
                                                                2000-2005

Mark W. Holland                  Trustee since 2004             President, Wellesley Financial Advisors,                 3
  age 59                                                        LLC; (since 2003); formerly Vice President
                                                                and Chief Operating Officer, Fixed Income
                                                                Management, Loomis, Sayles & Company,
                                                                L.P.; formerly Director, Loomis, Sayles &
                                                                Company, L.P. (from 1999 to 2002)

James Van Dyke Quereau, Jr.      Trustee since 1993             Managing Partner and Director, Stratton                  3
  age 60                                                        Management Company (investment
                                                                management); Director and Vice President,
                                                                Semper Trust Co.

J. Baur Whittlesey               Trustee since 1990             Member, Ledgewood, P.C. (law firm)                       3
  age 62

OFFICERS
G. Kenneth Heebner*              Vice President since 1990      Co-founder and Employee, CGM;                            3
  age 68                                                        Controlling Owner, Kenbob, Inc. (general
                                                                partner of CGM)

Robert L. Kemp*                  President since 1990           Co-founder and Employee, CGM; Non-voting                 3
  age 76                                                        Owner, Kenbob, Inc. (general partner of CGM)

David C. Fietze*                 Chief Compliance Officer       Employee - Legal counsel, CGM;                           3
  age 39                         since 2004                     formerly counsel, Bartlett Hackett
  address:                                                      Feinberg, P.C.
  38 Newbury Street
  Boston, Massachusetts
  02116

Kathleen S. Haughton*            Vice President since 1992      Employee - Investor Services Division, CGM               3
  age 48                         and Anti-Money
  address:                       Laundering Compliance
  38 Newbury Street              Officer since 2002
  Boston, Massachusetts
  02116

Jem A. Hudgins*                  Treasurer since 2004           Employee - CGM                                           3
  age 45

Leslie A. Lake*                  Vice President and             Employee - Office Administrator, CGM                     3
  age 63                         Secretary since 1992

Martha I. Maguire*               Vice President since 1994      Employee - Funds Marketing, CGM                          3
  age 53

Mary L. Stone*                   Assistant Vice President       Employee - Portfolio Transactions, CGM                   3
  age 64                         since 1990


INVESTMENT ADVISER
CAPITAL GROWTH MANAGEMENT
LIMITED PARTNERSHIP
Boston, Massachusetts 02110

TRANSFER AND DIVIDEND PAYING
AGENT AND CUSTODIAN OF ASSETS
STATE STREET BANK AND TRUST COMPANY
Boston, Massachusetts 02111

SHAREHOLDER SERVICING AGENT
FOR STATE STREET BANK AND
TRUST COMPANY
BOSTON FINANCIAL DATA SERVICES, INC.
P.O. Box 8511
Boston, Massachusetts 02266-8511

- -------------------------------------------------------
TELEPHONE NUMBERS
For information about:

[ ] Account Procedures and Status

[ ] Redemptions

[ ] Exchanges
    Call 800-343-5678

[ ] New Account Procedures

[ ] Prospectuses

[ ] Performance

[ ] Proxy Voting Policies and Voting Records

[ ] Complete Schedule of Portfolio Holdings
    for the 1st & 3rd Quarters (as filed on Form N-Q)
    Call 800-345-4048
- -------------------------------------------------------

MAILING ADDRESS
CGM Shareholder Services
c/o Boston Financial Data Services
P.O. Box 8511
Boston, MA 02266-8511
- -------------------------------------------------------

- -------------------------------------------------------
WEBSITE
http://www.cgmfunds.com
- -------------------------------------------------------

This report has been prepared for the shareholders
of the Fund and is not authorized for distribution
to current or prospective investors in the Fund
unless it is accompanied or preceded by a
prospectus.

FFAR 08                          Printed in U.S.A.


ITEM 2. CODE OF ETHICS.

CGM Trust has adopted a code of ethics that applies to the registrant's
principal executive officer and principal financial officer (the "Code"). The
Code is filed herewith as Exhibit 99.CODE ETH. There were no amendments to the
Code required to be disclosed in response to this Item 2 during the fiscal year
ended December 31, 2008. There were no waivers or implicit waivers from the
Code granted by the registrant during the fiscal year ended December 31, 2008.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

The Trust's Board of Trustees has determined that it has at least one audit
committee financial expert serving on its audit committee. The name of the
audit committee financial expert is James Van Dyke Quereau, Jr. James Van Dyke
Quereau, Jr. is "independent" as defined in Item 3(a)(2) of Form N-CSR.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

        (a) Audit Fee: The aggregate fees billed for each of the last two
            fiscal years for professional services rendered by the principal
            accountant for the audit of CGM Trust's annual financial statements
            or services that are normally provided by the accountant in
            connection with statutory and regulatory filings or engagements are
            the following: 2007 - $96,000 and 2008 - $115,600.

        (b) Audit-Related Fees: 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 CGM Trust's financial statements and are not
            reported under paragraph (a) of this Item are the following: 2007 -
            $0 and 2008 - $0.

        (c) Tax Fees: 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 the
            following: 2007 - $13,300 and 2008 - $14,850. The nature of the
            services comprising the fees disclosed under this category is tax
            compliance services related to the preparation and review of
            federal income and excise tax returns and review of excise tax
            distribution requirements.

        (d) All Other Fees: 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 the following: 2007 - $0 and 2008 -
            $0.

        (e) (1) The Trustees Committee of the Board of Trustees of the CGM
                Trust is required to pre-approve (i)all audit services, tax
                services and permitted non-audit services provided by
                PricewaterhouseCoopers LLP or any other independent public
                accountant engaged by the CGM Trust and (ii)any engagement of
                PricewaterhouseCoopers LLP to provide non-audit services to (a)
                Capital Growth Management Limited Partnership ("CGM"), and (b)
                any entity controlling, controlled by, or under common control
                with CGM that provides ongoing services to the Trust if the
                engagement relates directly to the operations and financial
                reporting of the Trust. The Trustees Committees generally
                review each necessary pre-approval on a case by base basis.
                However, the Trustees Committee have authorized the President
                or Treasurer of the CGM Trust, on behalf of its series (the
                "Funds") to incur additional fees totaling in the aggregate not
                more than $7,500.00 for services relating to the audit of the
                Funds for the fiscal year ended December 31, 2008, the
                close-out of the 2008 accounts, calculation of year-end
                dividends, and/or related tax or accounting matters.

            (2) 0% of services described in each of paragraphs (b) through (d)
                of this Item were approved by the audit committee pursuant to
                paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

        (f) Not applicable.

        (g) The aggregate non-audit fees billed by CGM Trust's accountant for
            services rendered to (i)CGM Trust, (ii)CGM, and (iii)any entity
            controlling, controlled by, or under common control with CGM that
            provides ongoing services to the CGM Trust for each of the last two
            fiscal years of the CGM Trust are the following: 2007 - $13,300 and
            2008 - $14,850.

        (h) There were no non-audit services that were rendered to the CGM or
            any entity controlling, controlled by, or under common control with
            CGM that provides ongoing services to the CGM Trust that were not
            pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of
            Regulation S-X, thus no consideration by the Trustees Committees
            was necessary to determine if services were compatible with
            maintaining the principal accountant's independence.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

                       Not applicable.

ITEM 6. SCHEDULE OF INVESTMENTS.

        Not applicable. Investments in securities of unaffiliated issuers as of
December 31, 2008, as set forth in Section 210.12-12 of Regulation S-X, are
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.

                       Not applicable.

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

                       Not 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.

As described in the CGM Trust's most recent proxy statement on Schedule 14A
filed on September 24, 2004, the CGM Trust does not have a formal policy for
considering any trustee candidates recommended by shareholders.

ITEM 11. CONTROLS AND PROCEDURES.

(a) Based on their evaluation of the CGM Trust's disclosure controls and
procedures within 90 days of the filing of this Form N-CSR, the principal
executive officer and principal financial officer of CGM Trust have concluded
that the CGM Trust's disclosure controls and procedures are effective to
provide reasonable assurance that information required to be disclosed by the
CGM Trust on Form N-CSR and Form N-Q is recorded, processed, summarized and
reported within the time periods specified in Securities and Exchange
Commission rules and forms.

(b) There were no changes in CGM Trust's internal control over financial
reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the
CGM Trust's last fiscal quarter of the period covered by this report.

ITEM 12. EXHIBITS.

(a)(1) Code of ethics described in Item 2 is attached hereto as EX-99.CODE ETH.

(a)(2) Certifications for each principal executive officer and principal
financial officer of the registrant as required by Rule 30a-2(a) under the
Investment Company Act of 1940 are attached hereto as EX-99.CERT.

(b) Certifications for each principal executive officer and principal financial
officer of the registrant as required by Rule 30a-2(b) under the Investment
Company Act of 1940 are attached hereto as EX-99.906CERT.


                                   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.

CGM Trust

By:   /S/Robert L. Kemp
      Robert L. Kemp
      President
      Principal Executive Officer

Date: February 26, 2009

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:   /S/ Robert L. Kemp
      Robert L. Kemp
      President
      Principal Executive Officer

Date: February 26, 2009


By:   /S/ Jem A. Hudgins
      Jem A. Hudgins
      CFO & Treasurer
      Principal Financial Officer

Date:  February 26, 2009