UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

   CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

                  Investment Company Act file number 811-07896
                                                    -----------

                         GAMCO Global Series Funds, Inc.
           -----------------------------------------------------------
               (Exact name of registrant as specified in charter)

                              One Corporate Center
                            Rye, New York 10580-1422
           -----------------------------------------------------------
               (Address of principal executive offices) (Zip code)

                                 Bruce N. Alpert
                               Gabelli Funds, LLC
                              One Corporate Center
                            Rye, New York 10580-1422
           -----------------------------------------------------------
                     (Name and address of agent for service)

       registrant's telephone number, including area code: 1-800-422-3554
                                                           --------------

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

                   Date of reporting period: December 31, 2006
                                            -------------------


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

A registrant  is required to disclose the  information  specified by Form N-CSR,
and the  Commission  will make this  information  public.  A  registrant  is not
required to respond to the  collection  of  information  contained in Form N-CSR
unless the Form  displays a  currently  valid  Office of  Management  and Budget
("OMB")  control number.  Please direct comments  concerning the accuracy of the
information  collection  burden  estimate and any  suggestions  for reducing the
burden to  Secretary,  Securities  and Exchange  Commission,  100 F Street,  NE,
Washington,  DC 20549. The OMB has reviewed this collection of information under
the clearance requirements of 44 U.S.C. ss. 3507.


ITEM 1. REPORTS TO STOCKHOLDERS.

The Report to Shareholders is attached herewith.


                  THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND

                                  ANNUAL REPORT
                                DECEMBER 31, 2006


TO OUR SHAREHOLDERS,

      The Sarbanes-Oxley Act requires a Fund's principal executive and financial
officers  to  certify  the  entire   contents  of  the  semi-annual  and  annual
shareholder  reports in a filing with the Securities and Exchange  Commission on
Form N-CSR. This certification  would cover the portfolio  manager's  commentary
and  subjective  opinions  if they are  attached  to or a part of the  financial
statements. Many of these comments and opinions would be difficult or impossible
to certify.

      Because we do not want our portfolio  managers to eliminate their opinions
and/or  restrict their  commentary to historical  facts, we have separated their
commentary from the financial  statements and investment portfolio and have sent
it to  you  separately.  Both  the  commentary  and  the  financial  statements,
including  the  portfolio  of  investments,  will be available on our website at
www.gabelli.com/funds.

      Enclosed are the audited financial statements and the investment portfolio
as of  December  31,  2006 with a  description  of  factors  that  affected  the
performance during the past year.

PERFORMANCE DISCUSSION (UNAUDITED)

      During the twelve month period  ended  December 31, 2006,  the Fund (Class
AAA) generated  a total rate of return of 8.39%, which includes  reinvestment of
its regular quarterly  distributions of three cents per share. The Merrill Lynch
Global 300 Convertible Index, rose 16.02% in 2006.

      For the year, the MSCI World Free Index rose 20.07%. The Fund participated
in  62%  of  the  return  from  global  equity   markets  with  less  risk.  The
investment-grade  Merrill  Lynch  Global Bond Index rose 2.6%,  while the Global
High Yield Index rose 11.8%.  Our  overweight  position in the  Japanese  market
earlier in the year hindered results somewhat.

      For the full year, our top five performers  were Scottish  Power's 4% bond
(Scottish  Power  generates and supplies  electricity  in the U.K.,  and was the
subject  of a  takeover  bid by  Iberdrola  S.A.  of Spain in  November);  Sanyo
Chemical, a Japanese resin producer which benefited from a rally in the Japanese
market earlier in the year, with its 0% convertible bond; Cincinnati Bell 6 3/4%
convertible preferred (+22%), which rose thanks to better operating results from
CBB's  wireless  and  data  divisions;  Ashland  Inc.  (+19%),  a crude  oil and
petrochemical  company  which  performed  well as oil prices  rose;  and Hon Hai
Precision Instrument Co., the world's largest contract electronics manufacturer,
whose 0%  convertible  bond  rose.  Hon Hai will be  manufacturing  Apple's  new
iPhone.

      Convertibles  which  did not  perform  up to  expectations  and were  sold
included  Futaba 0%. Futaba  manufactures  automotive  parts, a sector which has
weakened along with U.S. automotive weakness. Tokai Carbon's (which makes carbon
black for rubber) 0% bond was also weak.  Omnicare's  4%  convertible  preferred
fell 28%, as fears over its ability to maintain  its pricing in a more  volatile
healthcare environment took their toll.

                                                           Sincerely yours,

                                                           /s/ Bruce N. Alpert

                                                           Bruce N. Alpert
                                                           President
January 22, 2007



    COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT IN THE GAMCO GLOBAL
    CONVERTIBLE SECURITIES FUND CLASS AAA SHARES, THE MSCI WORLD FREE INDEX,
                 THE LIPPER CONVERTIBLE SECURITIES FUND AVERAGE,
                      AND THE UBS GLOBAL CONVERTIBLE INDEX

                                [GRAPH OMITTED]
                              PLOT POINTS FOLLOW:

             GAMCO Global
              Convertible    Lipper Convertible
          Securities Fund            Securities         UBS Global    MSCI World
              (Class AAA)          Fund Average  Convertible Index    Free Index
2/3/94            $10,000               $10,000            $10,000       $10,000
12/31/94           10,090                 9,277              9,709         9,863
12/31/95           11,363                11,316             11,146        11,910
12/31/96           11,985                13,084             11,883        13,520
12/31/97           12,323                15,511             12,057        15,632
12/31/98           13,388                16,204             14,544        19,442
12/31/99           20,229                20,889             19,734        24,268
12/31/00           17,397                21,026             17,683        21,070
12/31/01           15,093                19,542             16,633        17,526
12/31/02           14,361                17,994             16,533        14,040
12/31/03           17,446                22,817             20,595        18,688
12/31/04           19,479                24,795             22,482        21,439
12/31/05           21,037                25,524             22,496        23,474
12/31/06           22,802                28,301             26,532        28,185

PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE RESULTS. The performance tables and
graph do not reflect the deduction of taxes that a shareholder would pay on fund
distributions or the redemption of fund shares.


COMPARATIVE RESULTS
- --------------------------------------------------------------------------------

                        AVERAGE ANNUAL RETURNS THROUGH DECEMBER 31, 2006 (A)
                        ----------------------------------------------------


                                                                                                             Since
                                                                                                           Inception
                                                         Quarter  1 Year     3 Year    5 Year     10 Year  (2/3/94)
                                                         -------  ------     ------    ------     -------  --------
                                                                                            
  GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
    CLASS AAA .......................................    3.87%      8.39%     9.33%     8.60%      6.64%     6.59%
  Merrill Lynch Global 300 Convertible Index ........    6.32      16.02      7.85      9.20       7.31      N/A*
  UBS Global Convertible Index ......................    6.74      17.94      8.82      9.81       8.77      8.10
  MSCI World Free Index .............................    8.37      20.07     14.68      9.97       7.62      8.35
  Class A ...........................................    4.06       8.42      9.38      8.65       6.66      6.61
                                                        (1.92)(b)   2.18(b)   7.25(b)   7.38(b)    6.04(b)   6.13(b)
  Class B ...........................................    3.77       7.64      8.57      7.84       6.19      6.25
                                                        (1.23)(c)   2.64(c)   7.72(c)   7.55(c)    6.19(c)   6.25(c)
  Class C ...........................................    3.92       7.75      8.59      7.92       6.28      6.31
                                                         2.92(d)    6.75(d)   8.59      7.92       6.28      6.31

(a) RETURNS  REPRESENT PAST  PERFORMANCE  AND DO NOT GUARANTEE  FUTURE  RESULTS.
    INVESTMENT  RETURNS AND THE PRINCIPAL VALUE OF AN INVESTMENT WILL FLUCTUATE.
    TOTAL RETURNS AND AVERAGE ANNUAL RETURNS  REFLECT CHANGES IN SHARE PRICE AND
    REINVESTMENT  OF  DISTRIBUTIONS  AND ARE NET OF  EXPENSES.  WHEN  SHARES ARE
    REDEEMED,  THEY MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST.  CURRENT
    PERFORMANCE  MAY BE LOWER OR HIGHER  THAN THE  PERFORMANCE  DATA  PRESENTED.
    PERFORMANCE RETURNS FOR PERIODS LESS THAN ONE YEAR ARE NOT ANNUALIZED. VISIT
    WWW.GABELLI.COM FOR PERFORMANCE INFORMATION AS OF THE MOST RECENT MONTH END.
    INVESTORS  SHOULD  CAREFULLY  CONSIDER  THE  INVESTMENT  OBJECTIVES,  RISKS,
    CHARGES, AND EXPENSES OF THE FUND BEFORE INVESTING.  THE PROSPECTUS CONTAINS
    MORE  INFORMATION  ABOUT THIS AND OTHER MATTERS AND SHOULD BE READ CAREFULLY
    BEFORE  INVESTING.  INVESTING  IN  FOREIGN  SECURITIES  INVOLVES  RISKS  NOT
    ORDINARILY  ASSOCIATED  WITH  INVESTMENTS  IN  DOMESTIC  ISSUES,   INCLUDING
    CURRENCY FLUCTUATION, ECONOMIC, AND POLITICAL RISKS.
    THE CLASS AAA SHARES' NET ASSET VALUES ARE USED TO CALCULATE PERFORMANCE FOR
    THE PERIODS  PRIOR TO THE  ISSUANCE OF CLASS A SHARES,  CLASS B SHARES,  AND
    CLASS C SHARES ON MAY 2,  2001,  MARCH 28,  2001,  AND  NOVEMBER  26,  2001,
    RESPECTIVELY.  THE  ACTUAL  PERFORMANCE  FOR THE CLASS B SHARES  AND CLASS C
    SHARES WOULD HAVE BEEN LOWER DUE TO THE ADDITIONAL  EXPENSES ASSOCIATED WITH
    THESE  CLASSES OF SHARES.  THE UBS  (FORMERLY  WARBURG  DILLON  REED) GLOBAL
    CONVERTIBLE  INDEX,  THE MERRILL LYNCH GLOBAL 300 CONVERTIBLE  INDEX AND THE
    MORGAN STANLEY CAPITAL INTERNATIONAL ("MSCI") WORLD FREE INDEX ARE UNMANAGED
    INDICATORS  OF  INVESTMENT  PERFORMANCE.  YOU CANNOT  INVEST  DIRECTLY IN AN
    INDEX.
(b) INCLUDES THE EFFECT OF THE MAXIMUM  5.75% SALES  CHARGE AT THE  BEGINNING OF
    THE PERIOD.
(c) PERFORMANCE  RESULTS  INCLUDE  THE  DEFERRED  SALES  CHARGES FOR THE CLASS B
    SHARES UPON REDEMPTION AT THE END OF THE QUARTER, ONE YEAR, THREE YEAR, FIVE
    YEAR, TEN YEAR, AND SINCE  INCEPTION  PERIODS OF 5%, 5%, 3%, 2%, 0%, AND 0%,
    RESPECTIVELY,  OF THE FUND'S NAV AT THE TIME OF PURCHASE OR SALE,  WHICHEVER
    IS LOWER. CLASS B SHARES ARE NOT AVAILABLE FOR NEW PURCHASES.
(d) PERFORMANCE  RESULTS  INCLUDE  THE  DEFERRED  SALES  CHARGES FOR THE CLASS C
    SHARES UPON  REDEMPTION AT THE END OF THE QUARTER AND ONE YEAR PERIODS OF 1%
    OF THE FUND'S NAV AT THE TIME OF PURCHASE OR SALE, WHICHEVER IS LOWER.
*   THERE IS NO DATA  AVAILABLE  FOR THE MERRILL  LYNCH  GLOBAL 300  CONVERTIBLE
    INDEX PRIOR TO DECEMBER 31, 1994.
- --------------------------------------------------------------------------------

                                       2




THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
DISCLOSURE OF FUND EXPENSES (UNAUDITED)
For the Six Month Period from July 1, 2006 through December 31, 2006
                                                                   EXPENSE TABLE
- --------------------------------------------------------------------------------
We believe it is important for you to understand the impact of fees and expenses
regarding  your  investment.  All mutual  funds have  operating  expenses.  As a
shareholder  of a fund,  you  incur  ongoing  costs,  which  include  costs  for
portfolio  management,  administrative  services,  and shareholder reports (like
this one), among others.  Operating  expenses,  which are deducted from a fund's
gross income,  directly  reduce the investment  return of a fund.  When a fund's
expenses are expressed as a percentage of its average net assets, this figure is
known as the expense  ratio.  The  following  examples  are intended to help you
understand  the  ongoing  costs (in  dollars) of  investing  in your Fund and to
compare these costs with those of other mutual funds.  The examples are based on
an  investment  of $1,000 made at the beginning of the period shown and held for
the entire period.

The Expense Table below illustrates your Fund's costs in two ways:

ACTUAL FUND  RETURN:  This section  provides  information  about actual  account
values and actual expenses. You may use this section to help you to estimate the
actual  expenses that you paid over the period after any fee waivers and expense
reimbursements.  The "Ending  Account  Value"  shown is derived  from the Fund's
ACTUAL return during the past six months,  and the "Expenses Paid During Period"
shows the dollar  amount  that would have been paid by an  investor  who started
with $1,000 in the Fund. You may use this information,  together with the amount
you invested, to estimate the expenses that you paid over the period.

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

HYPOTHETICAL 5% RETURN:  This section provides  information  about  hypothetical
account  values and  hypothetical  expenses  based on the Fund's actual  expense
ratio. It assumes a hypothetical  annualized return of 5% before expenses during
the period shown. In this case - because the hypothetical return used is NOT the
Fund's  actual  return - the  results  do not apply to your  investment  and you
cannot use the  hypothetical  account  value and expense to estimate  the actual
ending  account  balance or expenses  you paid for the period.  This  example is
useful in making  comparisons  of 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 shareholder reports of 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 sales
charges (loads),  redemption fees, or exchange fees, if any, which are described
in the Prospectus. If these costs were applied to your account, your costs would
be higher.  Therefore, the 5% hypothetical return is useful in comparing ongoing
costs only,  and will not help you determine the relative  total costs of owning
different funds. The "Annualized  Expense Ratio"  represents the actual expenses
for the last six  months  and may be  different  from the  expense  ratio in the
Financial Highlights which is for the year ended December 31, 2006.

                 Beginning         Ending       Annualized     Expenses
               Account Value   Account Value      Expense    Paid During
                 07/01/06         12/31/06         Ratio        Period*
- --------------------------------------------------------------------------------
THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
- --------------------------------------------------------------------------------
ACTUAL FUND RETURN
Class AAA        $1,000.00       $1,051.80         2.18%        $11.27
Class A          $1,000.00       $1,052.10         2.15%        $11.12
Class B          $1,000.00       $1,048.10         2.89%        $14.92
Class C          $1,000.00       $1,049.40         2.88%        $14.88
HYPOTHETICAL 5% RETURN
Class AAA        $1,000.00       $1,014.22         2.18%        $11.07
Class A          $1,000.00       $1,014.37         2.15%        $10.92
Class B          $1,000.00       $1,010.64         2.89%        $14.65
Class C          $1,000.00       $1,010.69         2.88%        $14.60

* Expenses  are equal to the Fund's  annualized  expense  ratio for the last six
  months multiplied by the average account value over the period,  multiplied by
  the number of days in the most recent fiscal half-year, then divided by 365.

                                       3


SUMMARY OF PORTFOLIO HOLDINGS (UNAUDITED)

The following table presents portfolio holdings as a percent of total net assets
as of December 31, 2006:

THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND

Financial Services ................................  15.0%
Health Care .......................................  13.3%
Energy and Utilities ..............................  10.6%
Computer Software and Services ....................   7.7%
Electronics .......................................   6.6%
Consumer Products .................................   6.5%
Telecommunications ................................   6.0%
Retail ............................................   5.9%
U.S. Government Obligations .......................   4.1%
Business Services .................................   4.0%
Food and Beverage .................................   3.8%
Equipment and Supplies ............................   3.3%
Automotive: Parts and Accessories .................   3.0%
Communications Equipment ..........................   2.8%
Metals and Mining .................................   2.6%
Broadcasting ......................................   2.3%
Aerospace .........................................   2.2%
Other Assets and Liabilities (Net) ................   0.3%
                                                    ------
                                                    100.0%
                                                    ======

THE FUND FILES A COMPLETE SCHEDULE OF PORTFOLIO HOLDINGS WITH THE SECURITIES AND
EXCHANGE  COMMISSION (THE "SEC") FOR THE FIRST AND THIRD QUARTERS OF EACH FISCAL
YEAR ON FORM N-Q,  THE LAST OF WHICH WAS FILED FOR THE QUARTER  ENDED  SEPTEMBER
30, 2006.  SHAREHOLDERS  MAY OBTAIN THIS  INFORMATION AT  WWW.GABELLI.COM  OR BY
CALLING THE FUND AT 800-GABELLI (800-422-3554). THE FUND'S FORM N-Q IS AVAILABLE
ON THE SEC'S WEBSITE AT  WWW.SEC.GOV  AND MAY ALSO BE REVIEWED AND COPIED AT THE
SEC'S PUBLIC REFERENCE ROOM IN WASHINGTON,  DC.  INFORMATION ON THE OPERATION OF
THE PUBLIC REFERENCE ROOM MAY BE OBTAINED BY CALLING 1-800-SEC-0330.

PROXY VOTING

The Fund files Form N-PX with its complete proxy voting record for the 12 months
ended June 30th,  no later than August 31st of each year. A  description  of the
Fund's  proxy  voting  policies,  procedures,  and how the  Fund  voted  proxies
relating to portfolio  securities is available without charge,  upon request, by
(i) calling 800-GABELLI (800-422-3554); (ii) writing to The Gabelli Funds at One
Corporate  Center,  Rye, NY  10580-1422;  or (iii) visiting the SEC's website at
www.sec.gov.




                                       4

THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
SCHEDULE OF INVESTMENTS -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------

   PRINCIPAL                                                     MARKET
    AMOUNT                                        COST           VALUE
   ---------                                      ----           -------

              CONVERTIBLE CORPORATE BONDS -- 77.5%
              AEROSPACE -- 2.2%
$  180,000    Lockheed Martin Corp., Cv.,
                5.124%, 08/15/33 (d) ........ $   199,696    $   239,762
                                              ------------   ------------
              AUTOMOTIVE: PARTS AND ACCESSORIES -- 3.0%
15,000,000(b) Suzuki Motor Corp., Cv.,
                Zero Coupon, 03/29/13 .......      145,914        155,035
20,000,000(b) Taiho Kogyo Co. Ltd., Cv.,
                Zero Coupon, 03/31/11 .......      189,464        175,623
                                              ------------   ------------
                                                   335,378        330,658
                                              ------------   ------------
              BUSINESS SERVICES -- 4.0%
   100,000(c) Fugro NV, Cv.,
                2.375%, 04/27/10 ............      165,320        200,970
   520,000(c) Publicis Group SA, Cv.,
                0.750%, 07/17/08 ............      319,736        235,058
                                              ------------   ------------
                                                   485,056        436,028
                                              ------------   ------------
              COMPUTER SOFTWARE AND SERVICES -- 7.7%
25,000,000(b) CSK Holdings Corp., Cv.,
                0.250%, 09/30/13 ............      229,814        224,518
   500,000    Midway Games Inc., Cv.,
                6.000%, 09/30/25 ............      483,863        428,750
20,000,000(b) Nomura Research Institute Ltd.,
                 Cv.,  Zero Coupon,  03/31/14      181,577        182,681
                                              ------------   ------------
                                                   895,254        835,949
                                              ------------   ------------
              CONSUMER PRODUCTS -- 6.5%
   200,000    Church & Dwight Co. Inc.,
                Deb. Cv.,
                5.250%, 08/15/33 ............      227,253        289,000
   400,000    Eastman Kodak Co., Cv.,
                3.375%, 10/15/33 ............      415,291        424,500
                                              ------------   ------------
                                                   642,544        713,500
                                              ------------   ------------
              ELECTRONICS -- 6.6%
   400,000    Edo Corp., Sub. Deb. Cv.,
                4.000%, 11/15/25 ............      399,930        387,000
   411,000    Solectron Corp., Cv., Ser. B,
                0.500%, 02/15/34 ............      338,661        338,561
                                              ------------   ------------
                                                   738,591        725,561
                                              ------------   ------------
              ENERGY AND UTILITIES -- 10.6%
   200,000(c) RWE AG, Cv.,
                Zero Coupon, 06/22/07 .......      286,713        281,828
   200,000    Scottish Power Finance Ltd.,
                Sub. Deb. Cv.,
                4.000%, 07/29/49 (d) ........      259,872        409,000
   400,000    Transocean Inc., Deb. Cv.,
                1.500%, 05/15/21 ............      433,991        469,500
                                              ------------   ------------
                                                   980,576      1,160,328
                                              ------------   ------------
              EQUIPMENT AND SUPPLIES -- 3.3%
   200,000(c) Linde Finance BV, Cv.,
                1.250%, 05/05/09 ............      309,929        364,865
                                              ------------   ------------
              FINANCIAL SERVICES -- 10.1%
   200,000    CompuCredit Corp., Cv.,
                5.875%, 11/30/35 ............      197,018        204,250
   200,000    CompuCredit Corp., Cv.,
                3.625%, 05/30/25 ............      216,134        227,750
   150,000    First Pacific Finance, Cv.,
                Zero Coupon, 01/18/10 .......      179,299        266,052
   400,000    SLM Corp., Cv.,
                5.327%, 07/25/35 (d) ........      402,487        401,160
                                              ------------   ------------
                                                   994,938      1,099,212
                                              ------------   ------------
              FOOD AND BEVERAGE -- 3.8%
   400,000    Wild Oats Markets Inc.,
                Cv. (STEP),
                3.250%, 05/15/34 ............      434,740        417,500
                                              ------------   ------------
              HEALTH CARE -- 10.7%
   300,000    Allergan Inc., Cv.,
                1.500%, 04/01/26 (a) ........      293,456        328,500
   400,000    Edwards Lifesciences Corp., Cv.,
                3.875%, 05/15/33 ............      405,865        410,000
   400,000    Medtronic Inc., Cv.,
                1.625%, 04/15/13 (a) ........      397,005        428,500
                                              ------------   ------------
                                                 1,096,326      1,167,000
                                              ------------   ------------

   PRINCIPAL                                                     MARKET
    AMOUNT                                        COST           VALUE
   ---------                                      ----           -------
              RETAIL -- 5.9%
$  300,000    Kellwood Co., Deb. Cv. (STEP),
                3.500%, 06/15/34 ............ $    270,910   $    282,750
   400,000    Pier 1 Imports Inc., Cv. (STEP),
                6.375%, 02/15/36 ............      387,562        367,000
                                              ------------   ------------
                                                   658,472        649,750
                                              ------------   ------------
              TELECOMMUNICATIONS -- 3.1%
   400,000    XM Satellite Radio Holdings
                Inc., Cv.,
                1.750%, 12/01/09 ............      335,101        341,500
                                              ------------   ------------
              TOTAL CONVERTIBLE
                CORPORATE BONDS .............    8,106,601      8,481,613
                                              ------------   ------------

      SHARES
     -------
              CONVERTIBLE PREFERRED STOCKS -- 18.1%
              BROADCASTING -- 2.3%
     6,000    Emmis Communications Corp.,
                6.250% Cv. Pfd., Ser. A .....      276,300        253,470
                                              ------------   ------------
              COMMUNICATIONS EQUIPMENT -- 2.8%
       300    Lucent Technologies Capital
                Trust I,
                7.750% Cv. Pfd. .............      308,130        305,250
                                              ------------   ------------
              FINANCIAL SERVICES -- 4.9%
     5,000    New York Community Capital
                Trust V,
                6.000% Cv. Pfd. .............      235,428        233,000
     6,000    Sovereign Bancorp Inc.,
                4.375% Cv. Pfd. .............      273,000        297,000
                                              ------------   ------------
                                                   508,428        530,000
                                              ------------   ------------
              HEALTH CARE -- 2.6%
     5,000    Schering-Plough Corp.,
                6.000% Cv. Pfd. .............      258,438        284,450
                                              ------------   ------------
              METALS AND MINING -- 2.6%
       220    Freeport-McMoRan
                Copper & Gold Inc.,
                5.500% Cv. Pfd. .............      221,450        287,457
                                              ------------   ------------
              TELECOMMUNICATIONS -- 2.9%
     7,000    Cincinnati Bell Inc.,
                6.750% Cv. Pfd., Ser. B .....      280,315        322,000
                                              ------------   ------------
              TOTAL CONVERTIBLE
                PREFERRED STOCKS ............    1,853,061      1,982,627
                                              ------------   ------------

   PRINCIPAL
    AMOUNT
   ---------

              U.S. GOVERNMENT OBLIGATIONS -- 4.1%
  $454,000    U.S. Treasury Bill,
                4.900%++, 03/08/07 ..........      450,123        450,094
                                              ------------   ------------
              TOTAL
                INVESTMENTS -- 99.7% ........ $ 10,409,785     10,914,334
                                              ============
              OTHER ASSETS AND LIABILITIES (NET) -- 0.3%           31,378
                                                             ------------
              NET ASSETS -- 100.0% .......................   $ 10,945,712
                                                             ============
- ----------------
 ++  Represents annualized yield at date of purchase.
(a)  Security exempt from registration under Rule 144A of the Securities Act of
     1933, as amended. These securities may be resold in transactions exempt
     from registration, normally to qualified institutional buyers. At December
     31, 2006, the market value of the Rule 144A securities amounted to $757,000
     or 6.92% of total net assets. These securities have been deemed by the
     Board of Directors to be liquid.
(b)  Principal amount denoted in Japanese Yen.
(c)  Principal amount denoted in Euros.
(d)  Floating rate security. The rate disclosed is that in effect at December
     31, 2006.
STEP Step coupon  bond.  The rate  disclosed  is that in effect at December  31,
     2006.


                                         % OF
                                        MARKET         MARKET
GEOGRAPHIC DIVERSIFICATION               VALUE         VALUE
- --------------------------               -----         -----
North America .........................  76.6%     $ 8,358,204
Europe ................................  12.3        1,348,772
Japan .................................   6.8          737,858
Latin America .........................   4.3          469,500
                                        ------     -----------
                                        100.0%     $10,914,334
                                        ======     ===========

                 See accompanying notes to financial statements.

                                       5

                  THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND

STATEMENT OF ASSETS AND LIABILITIES
DECEMBER 31, 2006
- --------------------------------------------------------------------------------
ASSETS:
  Investments, at value (cost $10,409,785) ...............    $10,914,334
  Receivable for investments sold ........................        307,404
  Dividends and interest receivable ......................         66,687
  Receivable for Fund shares sold ........................         21,024
  Prepaid expense ........................................          1,914
                                                              -----------
  TOTAL ASSETS ...........................................     11,311,363
                                                              -----------
LIABILITIES:
  Payable for investments purchased ......................        212,885
  Payable to custodian ...................................         84,530
  Payable for legal and audit fees .......................         22,252
  Payable for shareholder ................................
    communications expenses ..............................         19,645
  Payable for Fund shares redeemed .......................          8,284
  Payable for investment advisory fees ...................          7,510
  Payable for distribution fees ..........................          2,482
  Other accrued expenses .................................          8,063
                                                              -----------
  TOTAL LIABILITIES ......................................        365,651
                                                              -----------
  NET ASSETS applicable to 1,998,809
    shares outstanding ...................................    $10,945,712
                                                              ===========
NET ASSETS CONSIST OF:
  Paid-in capital, each class at $0.001 par value ........    $10,556,982
  Accumulated distributions in excess of net
    investment income ....................................       (115,922)
  Accumulated distributions in excess of net
    realized gain on investments and foreign
    currency transactions ................................            (44)
  Net unrealized appreciation on investments .............        504,549
  Net unrealized appreciation on foreign
    currency translations ................................            147
                                                              -----------
  NET ASSETS .............................................    $10,945,712
                                                              ===========
SHARES OF CAPITAL STOCK:
  CLASS AAA:
  Net Asset Value, offering and redemption price
    per share ($10,690,844 / 1,950,049 shares
    outstanding; 75,000,000 shares authorized) ...........          $5.48
                                                                    =====
  CLASS A:
  Net Asset Value and redemption price per share
    ($48,838 / 8,900 shares outstanding;
    50,000,000 shares authorized) ........................          $5.49
                                                                    =====
  Maximum offering price per share (NAV / .9425,
    based on maximum sales charge of 5.75%
    of the offering price) ...............................          $5.82
                                                                    =====
  CLASS B:
  Net Asset Value and offering price per share
    ($41,637 / 8,165 shares outstanding;
    25,000,000 shares authorized) ........................          $5.10(a)
                                                                    =====
  CLASS C:
  Net Asset Value and offering price per share
    ($164,393 / 31,695 shares outstanding;
    25,000,000 shares authorized) ........................          $5.19(a)
                                                                    =====
- -------------------
(a) Redemption price varies based on the length of time held.


STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 2006
- --------------------------------------------------------------------------------

INVESTMENT INCOME:
  Dividends (net of foreign taxes of $1,491) .............    $   259,292
  Interest ...............................................        264,002
                                                              -----------
  TOTAL INVESTMENT INCOME ................................        523,294
                                                              -----------
EXPENSES:
  Investment advisory fees ...............................        161,989
  Distribution fees - Class AAA ..........................         39,835
  Distribution fees - Class A ............................            173
  Distribution fees - Class B ............................            584
  Distribution fees - Class C ............................          1,375
  Shareholder communications expenses ....................         37,502
  Legal and audit fees ...................................         28,196
  Registration expenses ..................................         25,725
  Custodian fees .........................................         25,511
  Shareholder services fees ..............................         17,161
  Interest expense .......................................          3,152
  Directors' fees ........................................          1,799
  Miscellaneous expenses .................................          4,924
                                                              -----------
  TOTAL EXPENSES .........................................        347,926
  Less:
    Expense reimbursement (see Note 3) ...................        (18,221)
    Custodian fees credits ...............................         (1,106)
                                                              -----------
  NET EXPENSES ...........................................        328,599
                                                              -----------
  NET INVESTMENT INCOME ..................................        194,695
                                                              -----------
NET REALIZED AND UNREALIZED GAIN (LOSS) ON
  INVESTMENTS AND FOREIGN CURRENCY:
  Net realized gain on investments .......................      2,119,192
  Net realized loss on foreign currency
    transactions .........................................        (57,851)
                                                              -----------
  Net realized gain on investments and
    foreign currency transactions ........................      2,061,341
                                                              -----------
  Net change in unrealized appreciation/
    depreciation on investments ..........................     (1,165,171)
  Net change in unrealized appreciation/
    depreciation on foreign currency
    translations .........................................        (34,002)
                                                              -----------
  Net change in unrealized appreciation/
    depreciation on investments and
    foreign currency translations ........................     (1,199,173)
                                                              -----------
  NET REALIZED AND UNREALIZED GAIN (LOSS)
    ON INVESTMENTS AND FOREIGN CURRENCY ..................        862,168
                                                              -----------
  NET INCREASE IN NET ASSETS RESULTING
    FROM OPERATIONS ......................................    $ 1,056,863
                                                              ===========

                 See accompanying notes to financial statements.

                                       6


                  THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND




STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------


                                                                                   YEAR ENDED           YEAR ENDED
                                                                                DECEMBER 31, 2006    DECEMBER 31, 2005
                                                                                -----------------    -----------------
OPERATIONS:
                                                                                                 
  Net investment income .................................................          $   194,695         $   105,195
  Net realized gain on investments and foreign currency transactions ....            2,061,341           1,536,737
  Net change in unrealized appreciation/depreciation on investments and
    foreign currency translations .......................................           (1,199,173)           (906,265)
                                                                                   -----------         -----------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ..................            1,056,863             735,667
                                                                                   -----------         -----------
DISTRIBUTIONS TO SHAREHOLDERS:
  Net investment income
    Class AAA ...........................................................             (253,454)           (558,053)
    Class A .............................................................               (1,031)            (15,235)
    Class B .............................................................                 (967)             (3,509)
    Class C .............................................................               (2,302)             (3,372)
                                                                                   -----------         -----------
                                                                                      (257,754)           (580,169)
                                                                                   -----------         -----------
  Net realized gains
    Class AAA ...........................................................           (1,907,313)         (1,034,911)
    Class A .............................................................               (8,497)            (28,253)
    Class B .............................................................               (7,690)             (6,508)
    Class C .............................................................              (29,949)             (6,254)
                                                                                   -----------         -----------
                                                                                    (1,953,449)         (1,075,926)
                                                                                   -----------         -----------
  TOTAL DISTRIBUTIONS TO SHAREHOLDERS ...................................           (2,211,203)         (1,656,095)
                                                                                   -----------         -----------
CAPITAL SHARE TRANSACTIONS:
    Class AAA ...........................................................           (1,967,425)         (5,708,864)
    Class A .............................................................              (39,957)           (469,690)
    Class B .............................................................              (26,216)            (52,160)
    Class C .............................................................               41,588              42,083
                                                                                   -----------         -----------
  NET DECREASE IN NET ASSETS FROM CAPITAL SHARE TRANSACTIONS ............           (1,992,010)         (6,188,631)
                                                                                   -----------         -----------
  REDEMPTION FEES .......................................................                   94              25,134
                                                                                   -----------         -----------
  NET DECREASE IN NET ASSETS ............................................           (3,146,256)         (7,083,925)
NET ASSETS:
  Beginning of period ...................................................           14,091,968          21,175,893
                                                                                   -----------         -----------
  End of period (including undistributed net investment of $0
    and $0, respectively) ...............................................          $10,945,712         $14,091,968
                                                                                   ===========         ===========


                 See accompanying notes to financial statements.

                                       7




THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
1.  ORGANIZATION.  The GAMCO Global  Convertible  Securities  Fund (the "Fund"),
formerly,  The Gabelli  Global  Convertible  Securities  Fund, a series of GAMCO
Global Series Funds, Inc. (the "Corporation"),  formerly,  Gabelli Global Series
Funds, Inc., was organized on July 16, 1993 as a Maryland corporation.  The Fund
is a non-diversified open-end management investment company registered under the
Investment  Company Act of 1940,  as amended (the "1940  Act"),  and one of four
separately   managed   portfolios   (collectively,   the  "Portfolios")  of  the
Corporation.  The Fund's  primary  objective  is to obtain a high level of total
return  through a  combination  of income  and  capital  appreciation.  The Fund
commenced investment operations on February 3, 1994.

2. SIGNIFICANT  ACCOUNTING POLICIES.  The preparation of financial statements in
accordance with United States ("U.S.") generally accepted accounting  principles
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.  The  following  is a summary of  significant  accounting
policies followed by the Fund in the preparation of its financial statements.

SECURITY  VALUATION.  Portfolio  securities  listed or  traded  on a  nationally
recognized securities exchange or traded in the U.S. over-the-counter market for
which market quotations are readily available are valued at the last quoted sale
price or a market's  official  closing  price as of the close of business on the
day the  securities  are being  valued.  If there  were no sales  that day,  the
security is valued at the  average of the  closing  bid and asked  prices or, if
there were no asked  prices  quoted on that day,  then the security is valued at
the closing bid price on that day. If no bid or asked  prices are quoted on such
day,  the  security is valued at the most  recently  available  price or, if the
Board of  Directors  (the  "Board") so  determines,  by such other method as the
Board shall determine in good faith to reflect its fair market value.  Portfolio
securities  traded on more than one national  securities  exchange or market are
valued according to the broadest and most  representative  market, as determined
by Gabelli Funds, LLC (the "Adviser").

Portfolio  securities  primarily traded on a foreign market are generally valued
at the preceding  closing values of such securities on the relevant market,  but
may be fair valued  pursuant to  procedures  established  by the Board if market
conditions change  significantly after the close of the foreign market but prior
to the  close of  business  on the day the  securities  are being  valued.  Debt
instruments  with  remaining  maturities  of 60 days or less that are not credit
impaired are valued at amortized cost,  unless the Board  determines such amount
does not reflect the securities' fair value, in which case these securities will
be fair valued as determined by the Board.  Debt  instruments  having a maturity
greater  than 60 days for which  market  quotations  are readily  available  are
valued at the average of the latest bid and asked prices. If there were no asked
prices  quoted on such day,  the security is valued using the closing bid price.
Futures contracts are valued at the closing  settlement price of the exchange or
board of trade on which the applicable contract is traded.

Securities and assets for which market  quotations are not readily available are
fair  valued as  determined  by the  Board.  Fair  valuation  methodologies  and
procedures may include, but are not limited to: analysis and review of available
financial and non-financial  information  about the company;  comparisons to the
valuation and changes in valuation of similar securities, including a comparison
of foreign  securities to the equivalent U.S.  dollar value American  Depository
Receipt ("ADR") securities at the close of the U.S. exchange;  and evaluation of
any other information that could be indicative of the value of the security.


                                       8

THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
In September 2006, the Financial  Accounting Standards Board (the "FASB") issued
Statement  of  Financial   Accounting   Standards   ("SFAS")   157,  Fair  Value
Measurements,  which  clarifies  the  definition  of  fair  value  and  requires
companies  to expand  their  disclosure  about the use of fair  value to measure
assets and  liabilities  in interim  and annual  periods  subsequent  to initial
recognition.  Adoption of SFAS 157  requires  the use of the price that would be
received  to sell  an  asset  or paid to  transfer  a  liability  in an  orderly
transaction  between market  participants at the  measurement  date. SFAS 157 is
effective  for  financial  statements  issued for fiscal years  beginning  after
November 15, 2007, and interim  periods within those fiscal years. At this time,
management is in the process of reviewing the  requirements  of SFAS 157 against
its current valuation policies to determine future applicability.

REPURCHASE  AGREEMENTS.  The Fund may  enter  into  repurchase  agreements  with
primary  government  securities dealers recognized by the Federal Reserve Board,
with  member  banks of the  Federal  Reserve  System,  or with other  brokers or
dealers that meet credit  guidelines  established by the Adviser and reviewed by
the Board.  Under the terms of a typical  repurchase  agreement,  the Fund takes
possession  of an  underlying  debt  obligation  subject to an obligation of the
seller to repurchase,  and the Fund to resell,  the obligation at an agreed-upon
price and time, thereby  determining the yield during the Fund's holding period.
The Fund will always receive and maintain  securities as collateral whose market
value, including accrued interest,  will be at least equal to 102% of the dollar
amount  invested by the Fund in each  agreement.  The Fund will make payment for
such  securities  only upon  physical  delivery  or upon  evidence of book entry
transfer of the collateral to the account of the  custodian.  To the extent that
any repurchase transaction exceeds one business day, the value of the collateral
is marked-to-market on a daily basis to maintain the adequacy of the collateral.
If the seller defaults and the value of the collateral declines or if bankruptcy
proceedings   are  commenced  with  respect  to  the  seller  of  the  security,
realization of the collateral by the Fund may be delayed or limited. At December
31, 2006, there were no open repurchase agreements.

FUTURES  CONTRACTS.  The Fund may engage in futures contracts for the purpose of
hedging  against  changes in the value of its  portfolio  securities  and in the
value of  securities  it  intends  to  purchase.  Upon  entering  into a futures
contract,  the Fund is required to deposit  with the broker an amount of cash or
cash equivalents equal to a certain  percentage of the contract amount.  This is
known as the "initial margin." Subsequent payments ("variation margin") are made
or received by the Fund each day,  depending  on the daily  fluctuations  in the
value    of    the    contract,     which    are    included    in    unrealized
appreciation/(depreciation)  on  investments  and  futures  contracts.  The Fund
recognizes a realized gain or loss when the contract is closed.

There are several  risks in  connection  with the use of futures  contracts as a
hedging  instrument.   The  change  in  value  of  futures  contracts  primarily
corresponds  with the  value  of their  underlying  instruments,  which  may not
correlate with the change in value of the hedged investments. In addition, there
is the risk that the Fund may not be able to enter  into a  closing  transaction
because of an illiquid  secondary  market.  At December 31, 2006,  there were no
open futures contracts.

FORWARD  FOREIGN  EXCHANGE  CONTRACTS.  The Fund may engage in  forward  foreign
exchange contracts for hedging a specific transaction with respect to either the
currency in which the  transaction is denominated or another  currency as deemed
appropriate by the Adviser. Forward foreign exchange contracts are valued at the
forward  rate and are  marked-to-market  daily.  The  change in market  value is
included in  unrealized  appreciation/depreciation  on  investments  and foreign
currency translations.  When the contract is closed, the Fund records a realized
gain or loss equal to the  difference  between the value of the  contract at the
time it was opened and the value at the time it was closed.

                                       9


THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
The use of forward foreign exchange contracts does not eliminate fluctuations in
the underlying prices of the Fund's portfolio securities,  but it does establish
a rate of exchange that can be achieved in the future.  Although forward foreign
exchange  contracts  limit the risk of loss due to a decline in the value of the
hedged currency, they also limit any potential gain that might result should the
value of the currency increase. In addition,  the Fund could be exposed to risks
if the  counterparties  to the  contracts  are unable to meet the terms of their
contracts.  At December 31, 2006,  there were no open forward  foreign  exchange
contracts.

FOREIGN CURRENCY TRANSLATIONS.  The books and records of the Fund are maintained
in  U.S.  dollars.  Foreign  currencies,   investments,  and  other  assets  and
liabilities  are translated  into U.S.  dollars at the current  exchange  rates.
Purchases  and  sales  of  investment  securities,   income,  and  expenses  are
translated  at the exchange  rate  prevailing  on the  respective  dates of such
transactions.  Unrealized  gains and losses that result from  changes in foreign
exchange rates and/or changes in market prices of securities  have been included
in unrealized  appreciation/depreciation  on  investments  and foreign  currency
translations.  Net realized  foreign  currency  gains and losses  resulting from
changes in exchange  rates include  foreign  currency  gains and losses  between
trade date and settlement date on investment  securities  transactions,  foreign
currency  transactions,  and the difference  between the amounts of interest and
dividends  recorded on the books of the Fund and the amounts actually  received.
The  portion of foreign  currency  gains and losses  related to  fluctuation  in
exchange rates between the initial trade date and subsequent  sale trade date is
included in realized gain/(loss) on investments.

FOREIGN  SECURITIES.  The Fund  may  directly  purchase  securities  of  foreign
issuers.  Investing in securities of foreign issuers  involves special risks not
typically  associated  with investing in securities of U.S.  issuers.  The risks
include  possible  revaluation of currencies,  the ability to repatriate  funds,
less complete financial information about companies, and possible future adverse
political  and  economic  developments.  Moreover,  securities  of many  foreign
issuers and their markets may be less liquid and their prices more volatile than
those of securities of comparable U.S. issuers.

FOREIGN  TAXES.  The Fund may be subject to  foreign  taxes on income,  gains on
investments,  or currency  repatriation,  a portion of which may be recoverable.
The Fund will accrue such taxes and  recoveries  as  applicable,  based upon its
current interpretation of tax rules and regulations that exist in the markets in
which it invests.

SECURITIES  TRANSACTIONS  AND INVESTMENT  INCOME.  Securities  transactions  are
accounted  for on the  trade  date  with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization  of premium and  accretion  of discount) is recorded on the accrual
basis.  Premiums  and  discounts  on debt  securities  are  amortized  using the
effective  yield  to  maturity  method.  Dividend  income  is  recorded  on  the
ex-dividend date except for certain  dividends which are recorded as soon as the
Fund is informed of the dividend.

DETERMINATION   OF  NET  ASSET  VALUE  AND  CALCULATION  OF  EXPENSES.   Certain
administrative  expenses are common to, and allocated among,  various affiliated
funds.  Such allocations are made on the basis of each Fund's average net assets
or other criteria  directly  affecting the expenses as determined by the Adviser
pursuant to procedures established by the Board.

In calculating  the net asset value ("NAV") per share of each class,  investment
income, realized and unrealized gains and losses,  redemption fees, and expenses
other than class specific expenses,  are allocated daily to each class of shares
based upon the  proportion  of net assets of each class at the beginning of each
day. Distribution expenses are borne solely by the class incurring the expense.

                                       10


THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
CUSTODIAN FEE CREDITS AND INTEREST EXPENSE. When cash balances are maintained in
the  custody  account,  the Fund  receives  credits  which  are  used to  offset
custodian  fees.  The gross  expenses  paid under the  custody  arrangement  are
included in custodian fees in the Statement of Operations with the corresponding
expense offset, if any, shown as "custodian fee credits". When cash balances are
overdrawn, the Fund is charged an overdraft fee equal to 2.00% above the Federal
Funds rate on  outstanding  balances.  This  amount,  if any,  would be shown as
"interest expense" in the Statement of Operations.

DISTRIBUTIONS TO SHAREHOLDERS. Distributions to shareholders are recorded on the
ex-dividend date.  Distributions to shareholders are based on income and capital
gains as determined in accordance with Federal income tax regulations, which may
differ from income and capital gains as determined under U.S. generally accepted
accounting  principles.   These  differences  are  primarily  due  to  differing
treatments  of income and gains on various  investment  securities  and  foreign
currency  transactions  held by the  Fund,  timing  differences,  and  differing
characterizations  of  distributions  made by the Fund.  Distributions  from net
investment  income include net realized gains on foreign currency  transactions.
These book/tax  differences are either temporary or permanent in nature.  To the
extent these differences are permanent,  adjustments are made to the appropriate
capital   accounts   in  the   period   when  the   differences   arise.   These
reclassifications  have no impact on the NAV of the Fund.  For the  fiscal  year
ended December 31, 2006,  reclassifications  were made to increase distributions
in  excess  of net  investment  income by  $2,833  and to  decrease  accumulated
distributions in excess of net realized gain on investments and foreign currency
transactions by $107,936, with an offsetting adjustment to paid-in capital.

The tax character of  distributions  paid during the fiscal years ended December
31, 2006 and December 31, 2005 was as follows:


                                                               YEAR ENDED              YEAR ENDED
                                                            DECEMBER 31, 2006       DECEMBER 31, 2005
                                                            -----------------       -----------------
          DISTRIBUTIONS PAID FROM:
                                                                                   
          Ordinary income (inclusive of short-term
            capital gains) ...............................     $  599,473              $1,232,664
          Long-term capital gains ........................      1,685,799                 423,431
                                                               ----------              ----------
          Total distributions paid .......................     $2,285,272              $1,656,095
                                                               ==========              ==========


The Fund has a fixed  distribution  policy.  Under the policy, the Fund declares
and pays distributions quarterly in the amount of $0.03 per share and identifies
that portion of the distribution  which is from net investment  income,  capital
gains, and paid-in capital.  The actual source of the distribution is determined
after  the  end  of  the  fiscal  year.  The  Fund  continues  to  evaluate  its
distribution  policy in light of ongoing economic and market  conditions and may
change  the  amount  of the  quarterly  distributions  in the  future.  The Fund
currently  intends to pay $0.03 per share on a quarterly  basis in March,  June,
September, and December.

PROVISION  FOR  INCOME  TAXES.  The Fund  intends  to  continue  to qualify as a
regulated  investment company under Subchapter M of the Internal Revenue Code of
1986, as amended (the  "Code").  It is the policy of the Fund to comply with the
requirements  of the Code  applicable to regulated  investment  companies and to
distribute  substantially  all of its net investment  company taxable income and
net capital gains. Therefore, no provision for Federal income taxes is required.

                                       11

THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
At December 31, 2006, the difference between book basis and tax basis unrealized
appreciation was primarily  due to tax  adjustments for convertible bond premium
and income accruals on hybrid securities.

As of December 31, 2006, the  components of accumulated  earnings on a tax basis
were as follows:

          Net unrealized appreciation on investments, foreign
            receivables and payables .............................  $388,730
                                                                    ========

The following  summarizes  the tax cost of  investments  and related  unrealized
appreciation/(depreciation) at December 31, 2006:



                                                          GROSS              GROSS
                                                       UNREALIZED         UNREALIZED       NET UNREALIZED
                                          COST        APPRECIATION       DEPRECIATION       APPRECIATION
                                          ----        ------------       ------------     ---------------
                                                                                  
          Investments ............... $10,525,751       $747,148           $(358,565)         $388,583


In July 2006, the FASB issued Interpretation No. 48, "Accounting for Uncertainty
in  Income  Taxes,   an   Interpretation   of  FASB  Statement  No.  109"  ("the
Interpretation").  The  Interpretation  establishes for all entities,  including
pass-through  entities  such as the Fund,  a  minimum  threshold  for  financial
statement  recognition  of the benefit of positions  taken in filing tax returns
(including  whether  an entity is  taxable in a  particular  jurisdiction),  and
requires certain expanded tax disclosures.  The Interpretation is required to be
implemented  for a  calendar-year  open-end fund no later than its June 29, 2007
NAV, and is to be applied to all open tax years as of the date of effectiveness.
Management has begun to evaluate the  application of the  Interpretation  to the
Fund, and is not in a position at this time to estimate the  significance of its
impact, if any, on the Fund's financial statements.

3. INVESTMENT  ADVISORY AGREEMENT AND OTHER  TRANSACTIONS.  The Fund has entered
into an  investment  advisory  agreement  (the  "Advisory  Agreement")  with the
Adviser which provides that the Fund will pay the Adviser a fee,  computed daily
and paid monthly,  at the annual rate of 1.00% of the value of its average daily
net assets.  In accordance with the Advisory  Agreement,  the Adviser provides a
continuous   investment   program  for  the  Fund's   portfolio,   oversees  the
administration  of all aspects of the Fund's business and affairs,  and pays the
compensation  of all  Officers  and  Directors  of the Fund  who are  affiliated
persons  of the  Adviser.  The  Adviser  has  voluntarily  agreed  to waive  the
investment  advisory  fee of the Fund to the extent  necessary  to maintain  the
annualized  total net operating  expenses  (exclusive  of  brokerage,  interest,
taxes,  and  extraordinary  expenses) at no more than 2.00%,  2.00%,  2.75%, and
2.75% of average daily net assets for Class AAA,  Class A, Class B, and Class C,
respectively.  For  the  fiscal  year  ended  December  31,  2006,  the  Adviser
reimbursed the Fund in the amount of $18,221.  Such amount is not recoverable in
future fiscal years.

If total net  assets of the  Corporation  are in  excess  of $100  million,  the
Corporation  pays each Director not  considered  to be an  affiliated  person an
annual retainer of $3,000 plus $500 for each Board meeting attended and they are
reimbursed for any out of pocket  expenses  incurred in attending  meetings.  If
total net assets of the Corporation are below $100 million, the Corporation pays
each Independent  Director an annual retainer of $1,500 plus $250 for each Board
meeting attended and they are reimbursed for any out of pocket expenses incurred
in attending  meetings.  All Board  committee  members  receive $500 per meeting
attended.  Directors  who  are  directors  or  employees  of the  Adviser  or an
affiliated  company receive no compensation  or expense  reimbursement  from the
Fund.

4.  DISTRIBUTION  PLAN.  The Fund's Board has adopted a  distribution  plan (the
"Plan")  for each class of shares  pursuant  to Rule  12b-1  under the 1940 Act.
Gabelli & Company,  Inc.  ("Gabelli &  Company"),  an  affiliate of the Adviser,
serves as  distributor  of the Fund.  Under the Class AAA, Class A, Class B, and
Class C Share Plans,

                                       12

THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
payments are  authorized  to Gabelli & Company at annual rates of 0.25%,  0.25%,
1.00%,  and  1.00%,  respectively,  of the  average  daily  net  assets of those
classes, the annual limitations under each Plan. Such payments are accrued daily
and paid monthly.

5. PORTFOLIO SECURITIES. Purchases and proceeds from the sales of securities for
the  fiscal  year ended  December  31,  2006,  other  than  short-term  and U.S.
Government securities, aggregated $19,269,019 and $23,262,365, respectively.

6. TRANSACTIONS WITH AFFILIATES. During the fiscal year ended December 31, 2006,
the Fund paid brokerage commissions of $1,008 to Gabelli & Company.

7. LINE OF CREDIT.  The Fund has access to an unsecured  line of credit of up to
$25,000,000  from the  custodian for temporary  borrowing  purposes.  Borrowings
under this  arrangement  bear  interest at 0.75% above the Federal Funds rate on
outstanding balances.  This amount, if any, would be shown as "interest expense"
in the Statement of  Operations.  At December 31, 2006,  there were no borrowing
outstanding from the line of credit.

The  average  daily  amount of  borrowings  outstanding  from the line of credit
within the fiscal  year ended  December  31,  2006 was  $48,312  with a weighted
average  interest rate of 6.03%.  The maximum amount borrowed at any time during
the fiscal year ended December 31, 2006 was $1,636,000.

8. CAPITAL STOCK TRANSACTIONS.  The Fund currently offers four classes of shares
- - Class AAA Shares,  Class A Shares,  Class B Shares, and Class C Shares.  Class
AAA Shares are offered only to investors  who acquire them directly from Gabelli
& Company, or through selected  broker/dealers,  or the transfer agent without a
sales charge.  Class A Shares are subject to a maximum front-end sales charge of
5.75%. Class B Shares are subject to a contingent deferred sales charge ("CDSC")
upon redemption within six years of purchase and automatically  convert to Class
A Shares  approximately eight years after the original purchase.  The applicable
CDSC is equal to a  declining  percentage  of the lesser of the NAV per share at
the date of the  original  purchase or at the date of  redemption,  based on the
length of time  held.  Class C Shares  are  subject to a 1.00% CDSC for one year
after  purchase.  Class B Shares are available only through  exchange of Class B
Shares of other funds  distributed by Gabelli & Company.  The Board has approved
Class I Shares which have not been offered publicly.

The Fund imposes a redemption fee of 2.00% on Class AAA Shares,  Class A Shares,
Class B Shares,  and Class C Shares that are  redeemed or exchanged on or before
the seventh day after the date of a purchase.  (Prior to June 15, 2005, the Fund
imposed a redemption  fee on shares that were redeemed or exchanged on or before
the sixtieth day after the date of a purchase.)  The  redemption fee is deducted
from  the  proceeds  otherwise  payable  to the  redeeming  shareholders  and is
retained by the Fund. The redemption fees retained by the Fund during the fiscal
years ended December 31, 2006 and December 31, 2005 amounted to $94 and $25,134,
respectively.

The redemption fee does not apply to shares purchased  through programs that the
Adviser  determined to have  appropriate  short-term  trading policies in place.
Additionally,  certain recordkeepers for qualified and non-qualified  retirement
plans that could not collect the redemption fee at the participant  level due to
systems limitations have received an extension to implement such systems.

                                       13

THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
Transactions in shares of capital stock were as follows:


                                                              YEAR ENDED                        YEAR ENDED
                                                           DECEMBER 31, 2006                 DECEMBER 31, 2005
                                                     ----------------------------      ---------------------------
                                                        SHARES          AMOUNT            SHARES         AMOUNT
                                                     ----------      ------------      ----------     ------------
                                                               CLASS AAA                         CLASS AAA
                                                     ----------------------------      ---------------------------
                                                                                          
Shares sold ........................................  1,878,922      $ 12,070,875       1,258,482     $  7,437,867
Shares issued upon reinvestment of distributions ...    353,287         1,969,894         232,662        1,356,751
Shares redeemed .................................... (2,496,862)      (16,008,194)     (2,527,933)     (14,503,482)
                                                     ----------      ------------      ----------     ------------
  Net decrease .....................................   (264,653)     $ (1,967,425)     (1,036,789)    $ (5,708,864)
                                                     ==========      ============      ==========     ============
                                                                CLASS A                           CLASS A
                                                     ----------------------------      ---------------------------
Shares sold ........................................      1,429      $      8,999          14,762     $     84,309
Shares issued upon reinvestment of distributions ...      1,606             8,860           2,003           11,680
Shares redeemed ....................................     (9,066)          (57,816)        (97,283)        (565,679)
                                                     ----------      ------------      ----------     ------------
  Net decrease .....................................     (6,031)     $    (39,957)        (80,518)    $   (469,690)
                                                     ==========      ============      ==========     ============
                                                                CLASS B                           CLASS B
                                                     ----------------------------      ---------------------------
Shares issued upon reinvestment of distributions ...      1,588      $      8,177             636     $      3,542
Shares redeemed ....................................     (5,758)          (34,393)        (10,395)         (55,702)
                                                     ----------      ------------      ----------     ------------
  Net decrease .....................................     (4,170)     $    (26,216)         (9,759)    $    (52,160)
                                                     ==========      ============      ==========     ============
                                                                CLASS C                           CLASS C
                                                     ----------------------------      ---------------------------
Shares sold ........................................      7,874      $     50,000          23,314     $    125,405
Shares issued upon reinvestment of distributions ...      6,086            31,842           1,090            6,137
Shares redeemed ....................................     (6,542)          (40,254)        (15,698)         (89,459)
                                                     ----------      ------------      ----------     ------------
  Net increase .....................................      7,418      $     41,588           8,706     $     42,083
                                                     ==========      ============      ==========     ============

9.  INDEMNIFICATIONS.  The Fund enters into  contracts that contain a variety of
indemnifications.  The Fund's  maximum  exposure  under  these  arrangements  is
unknown.  However, the Fund has not had prior claims or losses pursuant to these
contracts and expects the risk of loss to be remote.

10. OTHER MATTERS. The Adviser  and/or  affiliates  received  subpoenas from the
Attorney General of the State of New York and the SEC requesting  information on
mutual fund share  trading  practices  involving  certain  funds  managed by the
Adviser.  GAMCO  Investors,   Inc.  ("GAMCO"),  the  Adviser's  parent  company,
responded to these  requests for documents and  testimony.  In June 2006,  GAMCO
began discussions with the SEC regarding a possible resolution of their inquiry.
In February  2007,  the Adviser made an offer of  settlement to the staff of the
SEC for  communication  to the Commission for its  consideration to resolve this
matter.  This offer of settlement is subject to agreement regarding the specific
language of the SEC's administrative order and other settlement documents.  On a
separate matter, in September 2005, the Adviser was informed by the staff of the
SEC that the staff may recommend to the Commission that an administrative remedy
and a monetary penalty be sought from the Adviser in connection with the actions
of two of seven  closed-end  funds  managed by the  Adviser  relating to Section
19(a)  and Rule  19a-1 of the 1940  Act.  These  provisions  require  registered
investment  companies  to provide  written  statements  to  shareholders  when a
dividend is made from a source other than net investment  income.  While the two
closed-end funds sent annual statements and provided other materials  containing
this information, the funds did not send written statements to shareholders with
each  distribution in 2002 and 2003. The Adviser  believes that all of the funds
are now in  compliance.  The Adviser  believes  that these matters would have no
effect on the Fund or any material  adverse effect on the Adviser or its ability
to manage the Fund.
                                       14


THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------


Selected data for a share of capital stock outstanding throughout each period:


                                            INCOME
                                  FROM INVESTMENT OPERATIONS                         DISTRIBUTIONS
                           ---------------------------------------  --------------------------------------------------
                                            Net
              Net Asset       Net       Realized and       Total                    Net
  Period        Value,    Investment     Unrealized        from        Net       Realized      Return
   Ended      Beginning     Income     Gain (Loss) on   Investment  Investment   Gain on         of          Total
December 31,  of Period    (Loss)(a)    Investments     Operations    Income    Investments   Capital    Distributions
- ------------  ---------    ---------    -----------     ----------  ----------  -----------   -------    -------------
                                                                                     
CLASS AAA
  2006          $6.22       $ 0.08        $ 0.44          $ 0.52      $(0.10)     $(1.16)         --         $(1.26)
  2005           6.26         0.04          0.40            0.44       (0.17)      (0.32)         --          (0.49)
  2004           6.77         0.07          0.62            0.69       (0.12)      (0.38)     $(0.70)         (1.20)
  2003           6.66         0.07          1.24            1.31       (0.11)         --       (1.09)         (1.20)
  2002           8.29         0.07         (0.50)          (0.43)      (0.04)         --       (1.16)         (1.20)
CLASS A
  2006          $6.23       $ 0.08        $ 0.44          $ 0.52      $(0.10)     $(1.16)         --         $(1.26)
  2005           6.26         0.04          0.41            0.45       (0.17)      (0.32)         --          (0.49)
  2004           6.77         0.09          0.60            0.69       (0.11)      (0.36)     $(0.73)         (1.20)
  2003           6.66         0.07          1.24            1.31       (0.11)         --       (1.09)         (1.20)
  2002           8.28         0.07         (0.49)          (0.42)      (0.04)         --       (1.16)         (1.20)
CLASS B
  2006          $5.91       $ 0.03        $ 0.42          $ 0.45      $(0.10)     $(1.16)         --         $(1.26)
  2005           6.01        (0.01)         0.39            0.38       (0.17)      (0.32)         --          (0.49)
  2004           6.59         0.03          0.59            0.62       (0.10)      (0.34)     $(0.76)         (1.20)
  2003           6.55         0.03          1.21            1.24       (0.07)         --       (1.13)         (1.20)
  2002           8.23         0.02         (0.50)          (0.48)      (0.04)         --       (1.16)         (1.20)
CLASS C
  2006          $5.99       $ 0.04        $ 0.42          $ 0.46      $(0.10)     $(1.16)         --         $(1.26)
  2005           6.09         0.00(c)       0.38            0.38       (0.17)      (0.32)         --          (0.49)
  2004           6.66         0.03          0.60            0.63       (0.10)      (0.34)     $(0.76)         (1.20)
  2003           6.61         0.03          1.22            1.25       (0.07)         --       (1.13)         (1.20)
  2002           8.27         0.02         (0.48)          (0.46)      (0.04)         --       (1.16)         (1.20)



                                                                        RATIOS TO AVERAGE
                                                                   NET ASSETS/SUPPLEMENTAL DATA
                                           ------------------------------------------------------------------------------

                            Net Asset                 Net Assets      Net        Operating        Operating
  Period                      Value,                    End of     Investment     Expenses        Expenses      Portfolio
   Ended       Redemption     End of        Total       Period       Income        Before          Net of        Turnover
December 31,     Fees(a)      Period       Return+    (in 000's)     (Loss)     Reimbursement  Reimbursement(b)    Rate
- ------------    ---------    --------      -------    ----------    ---------   -------------  ----------------  --------
                                                                                           
CLASS AAA
  2006           $0.00(c)     $5.48          8.4%       $10,691       1.21%          2.14%          2.03%(d)       130%
  2005            0.01         6.22          8.0         13,781       0.63           2.11           2.03(d)         58
  2004            0.00(c)      6.26         11.7         20,350       1.06           2.06           2.01            60
  2003            0.00(c)      6.77         21.5         17,281       1.12           2.07           2.01            54
  2002              --         6.66         (4.9)         9,316       0.97           2.83           2.83            33
CLASS A
  2006           $0.00(c)     $5.49          8.4%       $   49        1.24%          2.14%          2.03%(d)       130%
  2005            0.01         6.23          8.2            93        0.68           2.06           2.04(d)         58
  2004            0.00(c)      6.26         11.6           598        1.41           2.06           2.01            60
  2003            0.00(c)      6.77         21.5            86        1.12           2.07           2.01            54
  2002              --         6.66         (4.7)            2        0.97           2.83           2.83            33
CLASS B
  2006           $0.00(c)     $5.10          7.6%       $   42        0.47%          2.89%          2.78%(d)       130%
  2005            0.01         5.91          7.3            73       (0.13)          2.84           2.78(d)         58
  2004            0.00(c)      6.01         10.8           133        0.45           2.81           2.76            60
  2003            0.00(c)      6.59         20.7            68        0.37           2.82           2.76            54
  2002              --         6.55         (5.6)           24        0.22           3.58           3.58            33
CLASS C
  2006           $0.00(c)     $5.19          7.8%       $  164        0.57%          2.90%          2.78%(d)       130%
  2005            0.01         5.99          7.2           145       (0.01)          2.91           2.78(d)         58
  2004            0.00(c)      6.09         10.9            95        0.44           2.81           2.76            60
  2003            0.00(c)      6.66         20.7            39        0.37           2.82           2.76            54
  2002              --         6.61         (5.3)           13        0.22           3.58           3.58            33

- --------------
  + Total return  represents  aggregate  total return of a  hypothetical  $1,000
    investment  at the beginning of the period and sold at the end of the period
    including  reinvestment of distributions and does not reflect the applicable
    sales charges.
(a) Per share amounts have been calculated using the average shares  outstanding
    method.
(b) The Fund incurred  interest  expense  during the fiscal years ended December
    31, 2006,  2005,  2004,  2003,  and 2002.  If interest  expense had not been
    incurred,  the ratios of operating expenses to average net assets would have
    been 2.00%, 2.00%, 2.00%, 2.00%, and 2.82% (Class AAA), 2.00%, 2.00%, 2.00%,
    2.00%, and 2.82% (Class A), 2.75%,  2.75%, 2.75%, 2.75%, and 3.57% (Class B)
    and 2.75%, 2.75%, 2.75%, 2.75%, and 3.57% (Class C), respectively.
(c) Amount represents less than $0.005 per share.
(d) The ratios do not include a reduction of expenses for  custodian fee credits
    on cash balances maintained with the custodian. Including such custodian fee
    credits, the expense ratios for the fiscal years ended December 31, 2006 and
    December  31, 2005 would have been 2.02% and 2.03%  (Class  AAA),  2.02% and
    2.03%  (Class A),  2.77% and 2.78% (Class B), and 2.77% and 2.78% (Class C),
    respectively.

                 See accompanying notes to financial statements.

                                       15



THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
- --------------------------------------------------------------------------------

To the Shareholders and Board of Directors of
GAMCO Global Series Funds, Inc.

We have audited the accompanying statement of assets and liabilities,  including
the schedule of  investments,  of The GAMCO Global  Convertible  Securities Fund
(the "Fund") (formerly The Gabelli Global Convertible Securities Fund), a series
of GAMCO Global Series Funds, Inc., (formerly Gabelli Global Series Funds, Inc.)
as of December 31, 2006,  and the related  statement of operations  for the year
then ended, the statements of changes in net assets for each of the two years in
the period then ended,  and the financial  highlights for each of the four years
in the period then ended.  These financial  statements and financial  highlights
are the  responsibility  of the  Fund's  management.  Our  responsibility  is to
express an opinion on these financial  statements and financial highlights based
on our audits.  The financial  highlights  for the year ended  December 31, 2002
were audited by other auditors whose report dated January 31, 2003, expressed an
unqualified opinion on those financial highlights.

We conducted our audits in accordance  with the standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements and financial highlights are free of material  misstatement.  We were
not engaged to perform an audit of the Fund's  internal  control over  financial
reporting.  Our audits included consideration of internal control over financial
reporting as a basis for designing audit  procedures that are appropriate in the
circumstances,  but  not  for  the  purpose  of  expressing  an  opinion  on the
effectiveness  of  the  Fund's  internal   control  over  financial   reporting.
Accordingly,  we express no such opinion. An audit also includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements and financial  highlights,  assessing the accounting  principles used
and  significant  estimates  made by  management,  and  evaluating  the  overall
financial  statement  presentation.  Our  procedures  included  confirmation  of
securities  owned as of December 31,  2006,  by  correspondence  with the Fund's
custodian and brokers or by other appropriate  auditing procedures where replies
from brokers were not received.  We believe that our audits provide a reasonable
basis for our opinion.

In our opinion,  the financial  statements and financial  highlights referred to
above present fairly, in all material  respects,  the financial  position of The
GAMCO Global Convertible Securities Fund, a series of GAMCO Global Series Funds,
Inc.,  at December 31,  2006,  the results of its  operations  for the year then
ended,  the  changes  in its net  assets for each of the two years in the period
then  ended,  and the  financial  highlights  for each of the four  years in the
period  then  ended,  in  conformity  with U.S.  generally  accepted  accounting
principles.

                                                           /s/ ERNST & YOUNG LLP
Philadelphia, Pennsylvania
February 16, 2007

                                       16



                  THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND

BOARD CONSIDERATION AND RE-APPROVAL OF INVESTMENT ADVISORY AGREEMENT (UNAUDITED)

During the six months ended  December  31,  2006,  the Board of Directors of the
Corporation  approved the continuation of the investment advisory agreement with
the Adviser  for the Fund on the basis of the  recommendation  by the  directors
(the "Independent Board Members") who are not "interested  persons" of the Fund.
The  following   paragraphs  summarize  the  material  information  and  factors
considered  by the  Independent  Board  Members  as  well as  their  conclusions
relative  to  such  factors.

NATURE, EXTENT AND QUALITY OF SERVICES. The Independent Board Members considered
information  regarding  the  portfolio  managers,  the depth of the analyst pool
available  to the  Adviser  and the  Fund's  portfolio  managers,  the  scope of
supervisory,  administrative,  shareholder,  and other  services  supervised  or
provided  by the  Adviser,  and the  absence  of  significant  service  problems
reported to the Board.  The  Independent  Board  Members  noted the  experience,
length of service, and reputation of the Fund's portfolio managers.

INVESTMENT  PERFORMANCE.  The Independent  Board Members  reviewed the short and
medium-term  performance  of the  Fund  against  a  peer  group  of  convertible
securities  funds,  noting  that the Fund's  performance  was in or near the top
quartile for the one year and bottom  quartile for three year periods and in the
middle of the peer group for the five year period.

PROFITABILITY. The Independent Board Members reviewed summary data regarding the
lack of  profitability  of the Fund to the Adviser  both with an  administrative
overhead charge and without such a charge.  The  Independent  Board Members also
noted that an affiliated  broker of the Adviser received  distribution  fees and
minor amounts of sales commissions.

ECONOMIES OF SCALE. The Independent  Board Members  discussed the major elements
of the  Adviser's  cost  structure  and the  relationship  of those  elements to
potential  economies of scale and reviewed  rudimentary data suggesting that 20%
growth in the Fund  would not  produce  meaningful  economies  of scale that the
shareholders would not participate in.

SHARING OF ECONOMIES OF SCALE.  The  Independent  Board  Members  noted that the
investment  advisory  fee  schedule  for the Fund does not take into account any
potential economies of scale that may develop.

SERVICE AND COST COMPARISONS. The Independent Board Members compared the expense
ratios of the investment advisory fee, other expenses, and total expenses of the
Fund to similar expense ratios of the peer group of convertible securities funds
and  noted  that  the  Adviser's   advisory  fee  includes   substantially   all
administrative services of the Fund as well as investment advisory services. The
Independent Board Members noted that the Fund's expense ratios,  after voluntary
expense reimbursements,  were significantly higher than, and the Fund's size was
significantly  lower than,  average  within this group.  The  Independent  Board
Members also noted that all but one of the peer group were domestic  convertible
funds,   thereby  limiting  the  usefulness  of  peer  group  comparisons.   The
Independent  Board  Members also noted that the advisory fee  structure  was the
same as that in effect  for most of the  Gabelli/GAMCO  funds.  The  Independent
Board  Members did not compare  the  advisory  fee to the fee for other types of
accounts managed by the Adviser.

CONCLUSIONS.  The  Independent  Board  Members  concluded  that the Fund enjoyed
highly experienced portfolio management services, good ancillary services, and a
mixed performance  record that was  understandable in relation to the disclosure
in the Fund's prospectus and periodic  shareholder reports as to its purpose and
the outlook of the  portfolio  managers.  The  Independent  Board  Members  also
concluded that the Fund's expense ratios were reasonable,  particularly in light
of the lack of  profitability  to the  Adviser of  managing  the Fund,  and that
economies of scale were not a significant factor in their thinking at this time.
The  Independent  Board  Members  did not view the  potential  profitability  of
ancillary services as material to their decision.  On the basis of the foregoing
and  without  assigning   particular  weight  to  any  single  conclusion,   the
Independent Board Members determined to recommend continuation of the investment
advisory agreement to the full Board of Directors.

                                       17



THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
ADDITIONAL FUND INFORMATION (UNAUDITED)
- --------------------------------------------------------------------------------

The business and affairs of the  Corporation  are managed under the direction of
the Corporation's  Board of Directors.  Information  pertaining to the Directors
and  officers of the  Corporation  is set forth below.  The Fund's  Statement of
Additional   Information  includes  additional   information  about  the  Fund's
Directors and is available, without charge, upon request, by calling 800-GABELLI
(800-422-3554) or by writing to The GAMCO Global Convertible  Securities Fund at
One Corporate Center, Rye, NY 10580-1422.


                    TERM OF OFFICE     NUMBER OF
NAME, POSITION(S)    AND LENGTH OF   FUNDS IN FUND
    ADDRESS 1             TIME      COMPLEX OVERSEEN     PRINCIPAL OCCUPATION(S)                    OTHER DIRECTORSHIPS
     AND AGE            SERVED 2       BY DIRECTOR       DURING PAST FIVE YEARS                      HELD BY DIRECTOR 4
- ----------------     ------------   ----------------     ----------------------                     --------------------
                                                                                               
INTERESTED DIRECTORS 3:
- ----------------------
MARIO J. GABELLI       Since 1993          24       Chairman of the Board and Chief Executive      Director of Morgan Group
Director and                                        Officer of GAMCO Investors, Inc. and           Holdings, Inc. (transportation
Chief Investment Officer                            Chief Investment Officer - Value Portfolios    services); Chairman of the
Age: 64                                             of Gabelli Funds, LLC and GAMCO Asset          Board of Lynch Interactive
                                                    Management Inc.; Director/Trustee or Chief     Corporation (multimedia and
                                                    Investment Officer of other registered         communication services
                                                    investment companies in the Gabelli Funds      company)
                                                    complex; Chairman and Chief Executive
                                                    Officer of GGCP, Inc.

JOHN D. GABELLI        Since 1993          10       Senior Vice President of Gabelli &             Director of GAMCO
Director                                            Company, Inc.                                  Investors, Inc.
Age: 62

INDEPENDENT DIRECTORS 5:
- ------------------------
E. VAL CERUTTI         Since 2001           7       Chief Executive Officer of Cerutti             Director of The LGL Group,
Director                                            Consultants, Inc.; Adviser to Iona             Inc. (diversified
Age: 67                                             College Hagan School of Business               manufacturing)

ANTHONY J. COLAVITA    Since 1993          34       Partner in the law firm of                        --
Director                                            Anthony J. Colavita, P.C.
Age: 71

ARTHUR V. FERRARA      Since 2001           7       Former Chairman of the Board and Chief         Director of the Guardian
Director                                            Executive Officer of The Guardian Life         sponsored mutual funds
Age: 76                                             Insurance Company of America
                                                    (1993 - 1995)


WERNER J. ROEDER, MD   Since 1993          23       Medical Director of Lawrence                      --
Director                                            Hospital and practicing private physician
Age: 66

ANTHONIE C. VAN EKRIS  Since 1993          17       Chairman of BALMAC International, Inc.            --
Director                                            (commodities and futures trading)
Age: 72

SALVATORE J. ZIZZA     Since 2004          25       Chairman of Hallmark Electrical Supplies       Director of Hollis-Eden
Director                                            Corp. (distribution of electrical              Pharmaceuticals
Age: 61                                             supplies)                                      (biotechnology); Director
                                                                                                   of Earl Scheib, Inc.
                                                                                                   (automotive services)


                                       18


THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
ADDITIONAL FUND INFORMATION (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------


                     TERM OF OFFICE
NAME, POSITION(S)     AND LENGTH OF
    ADDRESS 1              TIME                         PRINCIPAL OCCUPATION(S)
     AND AGE             SERVED 2                       DURING PAST FIVE YEARS
- -----------------     ------------                      ----------------------
                                          
OFFICERS:
- --------
BRUCE N. ALPERT        Since 2003               Executive Vice President and Chief Operating Officer of Gabelli Funds, LLC
President                                       since 1988 and an officer of all of the registered investment companies
Age: 55                                         in the Gabelli Funds complex. Director and President of Gabelli Advisers, Inc.
                                                since 1998

JAMES E. MCKEE         Since 1995               Vice President, General Counsel and Secretary of GAMCO Investors, Inc.
Secretary                                       since 1999 and GAMCO Asset Management Inc. since 1993; Secretary
Age: 43                                         of all of the registered investment companies in the Gabelli Funds complex

AGNES MULLADY          Since 2006               Treasurer of all of the registered investment companies in the Gabelli Funds
Treasurer                                       complex; Senior Vice President of U.S. Trust Company, N.A. and Treasurer
Age: 48                                         and Chief Financial Officer of Excelsior Funds from 2004 through 2005;
                                                Chief Financial Officer of AMIC Distribution Partners from 2002 through 2004;
                                                Controller of Reserve Management Corporation and Reserve Partners, Inc. and
                                                Treasurer of Reserve Funds from 2000 through 2002

PETER D. GOLDSTEIN     Since 2004               Director of Regulatory Affairs at GAMCO Investors, Inc. since 2004; Chief
Chief Compliance Officer                        Compliance Officer of all of the registered investment companies in the
Age: 53                                         Gabelli Funds complex; Vice President of Goldman Sachs Asset Management
                                                from 2000 through 2004

- -----------------
 1 Address: One Corporate Center, Rye, NY 10580-1422, unless otherwise noted.
 2 Each Director  will hold office for an indefinite  term until the earliest of
   (i) the next  meeting of  shareholders,  if any,  called  for the  purpose of
   considering  the  election  or  re-election  of such  Director  and until the
   election and  qualification of his or her successor,  if any, elected at such
   meeting,  or (ii) the date a Director  resigns or  retires,  or a Director is
   removed by the Board of Directors or  shareholders,  in  accordance  with the
   Corporation's  By-Laws and Articles of Incorporation.  Each officer will hold
   office for an indefinite  term until the date he or she resigns or retires or
   until his or her successor is elected and qualified.
 3 "Interested  person" of the  Corporation as defined in the 1940 Act.  Messrs.
   Gabelli  are  each  considered  an  "interested   person"  because  of  their
   affiliation  with  Gabelli  Funds,  LLC  which  acts  as  the   Corporation's
   investment adviser. Mario J. Gabelli and John D. Gabelli are brothers.
 4 This column includes only  directorships  of companies  required to report to
   the SEC under the  Securities  Exchange Act of 1934, as amended (i.e.  public
   companies) or other investment companies registered under the 1940 Act.
 5 Directors who  are  not  interested  persons  are  considered   "Independent"
   Directors.


- --------------------------------------------------------------------------------
                   2006 TAX NOTICE TO SHAREHOLDERS (Unaudited)

  For the fiscal year ended December 31, 2006, the Fund paid to  shareholders an
  ordinary  income dividend  (comprised of net investment  income and short-term
  capital gains) totaling $0.25, $0.25, $0.25, and $0.25 and a long-term capital
  gain distribution  totaling $1.01, $1.01, $1.01, and $1.01 per share for Class
  AAA, Class A, Class B, and Class C Shares, respectively. The Fund designates a
  maximum of  $1,685,799  of long-term  capital gains as a capital gain dividend
  for tax  reporting  purposes.  For the fiscal year ended  December  31,  2006,
  56.69% of the ordinary  income  dividend  qualifies for the dividend  received
  deduction  available  to  corporations,  and  50.73%  of the  ordinary  income
  distribution was qualified dividend income.

  U.S. GOVERNMENT INCOME
  The percentage of the ordinary  income dividend paid by the Fund during fiscal
  year 2006 which was derived  from U.S.  Treasury  securities  was 3.40%.  Such
  income is exempt from state and local tax in all states. However, many states,
  including New York and California,  allow a tax exemption for a portion of the
  income earned only if a mutual fund has invested at least 50% of its assets at
  the  end of  each  quarter  of the  Fund's  fiscal  year  in  U.S.  Government
  securities.  The GAMCO Global  Convertible  Securities  Fund did not meet this
  strict  requirement  in 2006. Due to the diversity in state and local tax law,
  it is  recommended  that you  consult  your  personal  tax  advisor  as to the
  applicability of the information provided to your specific situation.
- --------------------------------------------------------------------------------

                                       19



                         GAMCO Global Series Funds, Inc.
                  THE GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
                              One Corporate Center
                            Rye, New York 10580-1422
                                   800-GABELLI
                                  800-422-3554
                                FAX: 914-921-5118
                            WEBSITE: WWW.GABELLI.COM
                            E-MAIL: INFO@GABELLI.COM
                  Net Asset Value per share available daily by
                       calling 800-GABELLI after 6:00 P.M.

                               BOARD OF DIRECTORS

Mario J. Gabelli, CFA                                John D. Gabelli
CHAIRMAN AND CHIEF                                   SENIOR VICE PRESIDENT
EXECUTIVE OFFICER                                    GABELLI & COMPANY, INC.
GAMCO INVESTORS, INC.

E. Val Cerutti                                       Werner J. Roeder, MD
CHIEF EXECUTIVE OFFICER                              MEDICAL DIRECTOR
CERUTTI CONSULTANTS, INC.                            LAWRENCE HOSPITAL

Anthony J. Colavita                                  Anthonie C. van Ekris
ATTORNEY-AT-LAW                                      CHAIRMAN
ANTHONY J. COLAVITA, P.C.                            BALMAC INTERNATIONAL, INC.

Arthur V. Ferrara                                    Salvatore J. Zizza
FORMER CHAIRMAN AND                                  CHAIRMAN
CHIEF EXECUTIVE OFFICER                              HALLMARK ELECTRICAL
GUARDIAN LIFE INSURANCE                              SUPPLIES CORP.
COMPANY OF AMERICA

                                    OFFICERS

Bruce N. Alpert                                      James E. McKee
PRESIDENT                                            SECRETARY

Agnes Mullady                                        Peter D. Goldstein
TREASURER                                            CHIEF COMPLIANCE OFFICER

                                   DISTRIBUTOR
                             Gabelli & Company, Inc.

                  CUSTODIAN, TRANSFER AGENT, AND DIVIDEND AGENT
                       State Street Bank and Trust Company

                                  LEGAL COUNSEL
                    Skadden, Arps, Slate, Meagher & Flom LLP







- --------------------------------------------------------------------------------
This report is submitted for the general  information of the shareholders of The
GAMCO Global Convertible  Securities Fund. It is not authorized for distribution
to  prospective  investors  unless  preceded  or  accompanied  by  an  effective
prospectus.
- --------------------------------------------------------------------------------

GAB441Q406SR

                                                                           GAMCO




                                                THE
                                                GAMCO
                                                GLOBAL
                                                CONVERTIBLE
                                                SECURITIES
                                                FUND


                                                                   ANNUAL REPORT
                                                               DECEMBER 31, 2006







 
                          THE GAMCO GLOBAL GROWTH FUND

                                  ANNUAL REPORT
                                DECEMBER 31, 2006

TO OUR SHAREHOLDERS,

      The Sarbanes-Oxley Act requires a Fund's principal executive and financial
officers  to  certify  the  entire   contents  of  the  semi-annual  and  annual
shareholder  reports in a filing with the Securities and Exchange  Commission on
Form N-CSR. This certification  would cover the portfolio  manager's  commentary
and  subjective  opinions  if they are  attached  to or a part of the  financial
statements. Many of these comments and opinions would be difficult or impossible
to certify.

      Because we do not want our portfolio  managers to eliminate their opinions
and/or  restrict their  commentary to historical  facts, we have separated their
commentary from the financial  statements and investment portfolio and have sent
it to  you  separately.  Both  the  commentary  and  the  financial  statements,
including  the  portfolio  of  investments,  will be available on our website at
www.gabelli.com/funds.

      Enclosed are the audited financial statements and the investment portfolio
as of  December  31,  2006 with a  description  of  factors  that  affected  the
performance during the past year.

PERFORMANCE DISCUSSION (UNAUDITED)

      During 2006 The GAMCO  Global  Growth Fund  (Class  AAA)  returned  12.54%
underperforming  the MSCI AC World Free Index and the average  global  multi cap
core fund tracked by Lipper which were up 21.53% and 17.92% respectively.

      The year 2006 was a year of two market  environments.  Equity markets were
volatile  during  the  first  half  of the  year,  as  investors  grappled  with
geopolitical  tensions,  rising  interest rates and soaring energy and commodity
prices.  After rising rapidly in the first quarter, the emerging markets tumbled
in the second quarter as investors  moved to reduce risk levels.  The investment
landscape  improved  markedly  during the summer  months,  as oil and most other
commodity  prices staged a retreat,  the Fed paused (after 17  consecutive  rate
hikes) and the threatening  rhetoric from Iran and North Korea quieted down. The
result was a smart  advance  in share  prices,  which  included a rebound in the
emerging markets.

      It was another difficult year for funds with a growth and larger cap bias,
which  includes the Fund.  Investors  expressed a strong  preference  for higher
yielding  stocks  (such  as  telecoms  and  utilities)  as well  as hard  assets
(commodity  and real estate  based  securities),  as the leading  MSCI  industry
performers were Utilities,



Telecommunication Services, Materials and Financials. The Fund was helped by its
overweight  in  Materials  but hurt by  underweighting  Utilities,  Telecoms and
Financials.  Moreover,  the Fund's  overweights  in Health Care and  Information
Technology  hurt  performance  as these  were the two  worst  industry  sectors.
Additionally,  the lack of any material  emerging  market  exposure in the first
quarter of the year opened a performance gap that proved too great to close over
the balance of the year,  relative to the MSCI AC World Free Index,  although we
did establish a meaningful  position in the emerging  markets  during the second
quarter pullback.  In summary, the lack of emerging market exposure in the first
quarter,  coupled with  underweighting  Utilities,  Telecoms and  Financials and
overweighting  Technology and Health Care, led to the Fund  underperforming  the
Index.

                                                           Sincerely yours,

                                                           /s/ Bruce N. Alpert

                                                           Bruce N. Alpert
                                                           President

January 22, 2007

SUMMARY OF PORTFOLIO HOLDINGS (UNAUDITED)

The following table presents portfolio holdings as a percent of total net assets
as of December 31, 2006:

THE GAMCO GLOBAL GROWTH FUND

Financial Services ................................  18.7%
Health Care .......................................   9.6%
Energy and Utilities ..............................   9.2%
Food and Beverage .................................   7.8%
Computer Software and Services ....................   7.3%
Exchange Traded Funds .............................   6.3%
Metals and Mining .................................   5.8%
Retail ............................................   5.8%
Diversified Industrial ............................   4.4%
Consumer Products .................................   3.5%
Aerospace .........................................   3.2%
Hotels and Gaming .................................   3.2%
Entertainment .....................................   2.9%
Business Services .................................   2.7%
Building and Construction .........................   2.1%
Telecommunications ................................   1.8%
Broadcasting ......................................   1.3%
Electronics .......................................   1.1%
Equipment and Supplies ............................   0.9%
U.S. Government Obligations .......................   0.9%
Cable and Satellite ...............................   0.5%
Chemicals and Allied Products .....................   0.3%
Wireless Communications ...........................   0.3%
Communications Equipment ..........................   0.3%
Other Assets and Liabilities (Net) ................   0.1%
                                                    ------
                                                    100.0%
                                                    ======

THE FUND FILES A COMPLETE SCHEDULE OF PORTFOLIO HOLDINGS WITH THE SECURITIES AND
EXCHANGE  COMMISSION (THE "SEC") FOR THE FIRST AND THIRD QUARTERS OF EACH FISCAL
YEAR ON FORM N-Q,  THE LAST OF WHICH WAS FILED FOR THE QUARTER  ENDED  SEPTEMBER
30, 2006.  SHAREHOLDERS  MAY OBTAIN THIS  INFORMATION AT  WWW.GABELLI.COM  OR BY
CALLING THE FUND AT 800-GABELLI (800-422-3554). THE FUND'S FORM N-Q IS AVAILABLE
ON THE SEC'S WEBSITE AT  WWW.SEC.GOV  AND MAY ALSO BE REVIEWED AND COPIED AT THE
SEC'S PUBLIC REFERENCE ROOM IN WASHINGTON,  DC.  INFORMATION ON THE OPERATION OF
THE PUBLIC REFERENCE ROOM MAY BE OBTAINED BY CALLING 1-800-SEC-0330.

PROXY VOTING

The Fund files Form N-PX with its complete proxy voting record for the 12 months
ended June 30th,  no later than August 31st of each year. A  description  of the
Fund's  proxy  voting  policies,  procedures,  and how the  Fund  voted  proxies
relating to portfolio  securities is available without charge,  upon request, by
(i) calling 800-GABELLI (800-422-3554); (ii) writing to The Gabelli Funds at One
Corporate  Center,  Rye, NY  10580-1422;  or (iii) visiting the SEC's website at
www.sec.gov.

                                       2

    COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT IN THE GAMCO GLOBAL
       GROWTH FUND CLASS AAA SHARES, THE LIPPER GLOBAL MULTI-CAP CORE FUND
                    AVERAGE, AND THE MSCI AC WORLD FREE INDEX

                                [GRAPH OMITTED]
                              PLOT POINTS FOLLOW:

                     Gabelli Global      Lipper Global Multi-      MSCI AC World
     Growth Fund (Class AAA) Shares     Cap Core Fund Average         Free Index
2/7/94                      $10,000                  $10,000             $10,000
12/31/94                     10,250                    9,482               9,849
12/31/95                     12,083                   11,160              11,766
12/31/96                     13,594                   12,875              13,319
12/31/97                     19,263                   15,250              15,315
12/31/98                     24,836                   17,281              18,680
12/31/99                     53,645                   22,505              23,690
12/31/00                     33,534                   21,495              20,387
12/31/01                     25,435                   18,883              17,144
12/31/02                     19,130                   16,421              13,890
12/31/03                     27,048                   21,561              18,700
12/31/04                     29,598                   24,484              21,645
12/31/05                     33,659                   26,952              24,106
12/31/06                     37,880                   31,782              29,296

PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE RESULTS. The performance tables and
graph do not reflect the deduction of taxes that a shareholder would pay on fund
distributions or the redemption of fund shares.

COMPARATIVE RESULTS
- --------------------------------------------------------------------------------
              AVERAGE ANNUAL RETURNS THROUGH DECEMBER 31, 2006 (A)
              ----------------------------------------------------


                                                                                                             Since
                                                                                                           Inception
                                                    Quarter   1 Year      3 Year      5 Year      10 Year   (2/7/94)
- --------------------------------------------------------------------------------------------------------------------
                                                                                          
 GAMCO GLOBAL GROWTH FUND CLASS AAA (b)...........  8.86%     12.54%      11.88%       8.29%      10.79%    10.88%
 MSCI AC World Free Index  .......................  9.16      21.53       16.14       11.31        8.20      8.68
 Lipper Global Multi-Cap Core Fund Average .......  7.69      17.92       13.90       10.85        8.17      8.89
 Class A .........................................  8.87      12.54       11.88        8.29       10.81     10.89
                                                    2.61(c)    6.07(c)     9.69(c)     7.02(c)    10.15(c)  10.38(c)
 Class B .........................................  8.67      11.65       11.05        7.48       10.27     10.48
                                                    3.67(d)    6.65(d)    10.23(d)     7.17(d)    10.27(d)  10.48(d)
 Class C .........................................  8.70      11.70       11.05        7.46       10.24     10.45
                                                    7.70(e)   10.70(e)    11.05        7.46       10.24     10.45

(a)  RETURNS  REPRESENT PAST  PERFORMANCE  AND DO NOT GUARANTEE  FUTURE RESULTS.
     TOTAL RETURNS AND AVERAGE ANNUAL RETURNS REFLECT CHANGES IN SHARE PRICE AND
     REINVESTMENT OF DISTRIBUTIONS AND ARE NET OF EXPENSES.  INVESTMENT  RETURNS
     AND THE PRINCIPAL VALUE OF AN INVESTMENT  WILL  FLUCTUATE.  WHEN SHARES ARE
     REDEEMED,  THEY MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. CURRENT
     PERFORMANCE  MAY BE LOWER OR HIGHER THAN THE  PERFORMANCE  DATA  PRESENTED.
     PERFORMANCE  RETURNS  FOR  PERIODS  LESS THAN ONE YEAR ARE NOT  ANNUALIZED.
     VISIT  WWW.GABELLI.COM  FOR  PERFORMANCE  INFORMATION AS OF THE MOST RECENT
     MONTH END. INVESTORS SHOULD CAREFULLY  CONSIDER THE INVESTMENT  OBJECTIVES,
     RISKS,  CHARGES, AND EXPENSES OF THE FUND BEFORE INVESTING.  THE PROSPECTUS
     CONTAINS MORE  INFORMATION  ABOUT THIS AND OTHER MATTERS AND SHOULD BE READ
     CAREFULLY BEFORE INVESTING.
     THE CLASS AAA SHARES' NET ASSET  VALUES ARE USED TO  CALCULATE  PERFORMANCE
     FOR THE PERIODS  PRIOR TO THE  ISSUANCE OF CLASS A SHARES,  CLASS B SHARES,
     AND CLASS C SHARES  ON MARCH 2,  2000,  MAY 5,  2000,  AND MARCH 12,  2000,
     RESPECTIVELY.  THE  ACTUAL  PERFORMANCE  FOR THE CLASS B SHARES AND CLASS C
     SHARES WOULD HAVE BEEN LOWER DUE TO THE ADDITIONAL EXPENSES ASSOCIATED WITH
     THESE CLASSES OF SHARES. INVESTING IN FOREIGN SECURITIES INVOLVES RISKS NOT
     ORDINARILY  ASSOCIATED  WITH  INVESTMENTS  IN  DOMESTIC  ISSUES,  INCLUDING
     CURRENCY  FLUCTUATION,  ECONOMIC,  AND POLITICAL  RISKS. THE MORGAN STANLEY
     CAPITAL INTERNATIONAL ALL COUNTRY WORLD FREE INDEX (THE "MSCI AC WORLD FREE
     INDEX") IS AN UNMANAGED  INDICATOR OF STOCK MARKET  PERFORMANCE,  WHILE THE
     LIPPER GLOBAL MULTI-CAP CORE FUND AVERAGE REFLECTS THE AVERAGE  PERFORMANCE
     OF MUTUAL FUNDS  CLASSIFIED  IN THIS  PARTICULAR  CATEGORY.  DIVIDENDS  ARE
     CONSIDERED REINVESTED. YOU CANNOT INVEST DIRECTLY IN AN INDEX.
(b)  EFFECTIVE FEBRUARY 15, 2007, CLASS AAA SHARES ARE ONLY OFFERED TO INVESTORS
     WHO ARE SHAREHOLDERS IN ONE OR MORE OF  THE REGISTERED FUNDS DISTRIBUTED BY
     GABELLI & COMPANY, INC. PRIOR TO FEBRUARY 15, 2007.
(c)  INCLUDES THE EFFECT OF THE MAXIMUM  5.75% SALES CHARGE AT THE  BEGINNING OF
     THE PERIOD.
(d)  PERFORMANCE  RESULTS  INCLUDE THE  DEFERRED  SALES  CHARGES FOR THE CLASS B
     SHARES UPON  REDEMPTION  AT THE END OF THE QUARTER,  ONE YEAR,  THREE YEAR,
     FIVE YEAR, TEN YEAR, AND SINCE INCEPTION PERIODS OF 5%, 5%, 3%, 2%, 0%, AND
     0%,  RESPECTIVELY  OF THE  FUND'S  NAV AT THE  TIME OF  PURCHASE  OR  SALE,
     WHICHEVER IS LOWER. CLASS B SHARES ARE NOT AVAILABLE FOR NEW PURCHASES.
(e)  PERFORMANCE  RESULTS  INCLUDE THE  DEFERRED  SALES  CHARGES FOR THE CLASS C
     SHARES UPON REDEMPTION AT THE END OF THE QUARTER AND ONE YEAR PERIODS OF 1%
     OF THE FUND'S NAV AT THE TIME OF PURCHASE OR SALE, WHICHEVER IS LOWER.
- --------------------------------------------------------------------------------

                                       3

THE GAMCO GLOBAL GROWTH FUND
DISCLOSURE OF FUND EXPENSES (UNAUDITED)

For the Six Month Period from July 1, 2006 through December 31, 2006
                                                                   EXPENSE TABLE
- --------------------------------------------------------------------------------
We believe it is important for you to understand the impact of fees and expenses
regarding  your  investment.  All mutual  funds have  operating  expenses.  As a
shareholder  of a fund,  you  incur  ongoing  costs,  which  include  costs  for
portfolio  management,  administrative  services,  and shareholder reports (like
this one), among others.  Operating  expenses,  which are deducted from a fund's
gross income,  directly  reduce the investment  return of a fund.  When a fund's
expenses are expressed as a percentage of its average net assets, this figure is
known as the expense  ratio.  The  following  examples  are intended to help you
understand  the  ongoing  costs (in  dollars) of  investing  in your Fund and to
compare these costs with those of other mutual funds.  The examples are based on
an  investment  of $1,000 made at the beginning of the period shown and held for
the entire period.

The Expense Table below illustrates your Fund's costs in two ways:

ACTUAL FUND  RETURN:  This section  provides  information  about actual  account
values and actual expenses. You may use this section to help you to estimate the
actual  expenses that you paid over the period after any fee waivers and expense
reimbursements.  The "Ending  Account  Value"  shown is derived  from the Fund's
ACTUAL return during the past six months,  and the "Expenses Paid During Period"
shows the dollar  amount  that would have been paid by an  investor  who started
with $1,000 in the Fund. You may use this information,  together with the amount
you invested, to estimate the expenses that you paid over the period.

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

HYPOTHETICAL 5% RETURN:  This section provides  information  about  hypothetical
account  values and  hypothetical  expenses  based on the Fund's actual  expense
ratio. It assumes a hypothetical  annualized return of 5% before expenses during
the period shown. In this case - because the hypothetical return used is NOT the
Fund's  actual  return - the  results  do not apply to your  investment  and you
cannot use the  hypothetical  account  value and expense to estimate  the actual
ending  account  balance or expenses  you paid for the period.  This  example is
useful in making  comparisons  of 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 shareholder reports of 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 sales
charges (loads),  redemption fees, or exchange fees, if any, which are described
in the Prospectus. If these costs were applied to your account, your costs would
be higher.  Therefore, the 5% hypothetical return is useful in comparing ongoing
costs only,  and will not help you determine the relative  total costs of owning
different funds. The "Annualized  Expense Ratio"  represents the actual expenses
for the last six  months  and may be  different  from the  expense  ratio in the
Financial Highlights which is for the year ended December 31, 2006.

                 Beginning         Ending       Annualized     Expenses
               Account Value   Account Value      Expense    Paid During
                 07/01/06         12/31/06         Ratio        Period*
- --------------------------------------------------------------------------------
THE GAMCO GLOBAL GROWTH FUND
- --------------------------------------------------------------------------------
ACTUAL FUND RETURN
Class AAA        $1,000.00       $1,087.10         1.77%        $ 9.31
Class A          $1,000.00       $1,086.60         1.78%        $ 9.36
Class B          $1,000.00       $1,082.40         2.52%        $13.23
Class C          $1,000.00       $1,083.20         2.52%        $13.23

HYPOTHETICAL 5% RETURN
Class AAA        $1,000.00       $1,016.28         1.77%        $ 9.00
Class A          $1,000.00       $1,016.23         1.78%        $ 9.05
Class B          $1,000.00       $1,012.50         2.52%        $12.78
Class C          $1,000.00       $1,012.50         2.52%        $12.78

* Expenses  are equal to the Fund's  annualized  expense  ratio for the last six
  months multiplied by the average account value over the period,  multiplied by
  the number of days in the most recent fiscal half-year, then divided by 365.

                                       4



THE GAMCO GLOBAL GROWTH FUND
SCHEDULE OF INVESTMENTS -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------
                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS -- 92.7%
              AEROSPACE -- 3.2%
       5,000  General Dynamics Corp. ........ $    345,708   $    371,750
       6,000  L-3 Communications
                Holdings Inc. ...............      463,245        490,680
       5,000  Lockheed Martin Corp. .........      372,928        460,350
       9,000  Rockwell Collins Inc. .........      516,913        569,610
      90,000  Rolls-Royce Group plc+ ........      751,338        789,018
   1,174,400  Rolls-Royce Group plc, Cl. B ..        2,235          2,334
      10,000  United Technologies Corp. .....      491,188        625,200
                                              ------------   ------------
                                                 2,943,555      3,308,942
                                              ------------   ------------
              BROADCASTING -- 1.3%
       7,000  Lagardere SCA .................      399,739        563,659
       5,200  Nippon Television
                Network Corp. ...............      771,307        771,665
                                              ------------   ------------
                                                 1,171,046      1,335,324
                                              ------------   ------------
              BUILDING AND CONSTRUCTION -- 2.1%
       5,000  CRH plc, Dublin ...............      120,555        208,171
      15,000  CRH plc, London ...............      361,664        625,305
       8,000  Fomento de Construcciones
                y Contratas SA ..............      234,716        815,260
       8,000  Technip SA ....................      266,839        549,139
                                              ------------   ------------
                                                   983,774      2,197,875
                                              ------------   ------------
              BUSINESS SERVICES -- 2.7%
       5,000  FedEx Corp. ...................      563,470        543,100
       7,000  McDermott
                International Inc.+ .........      323,763        356,020
      11,000  SAP AG, ADR ...................      518,887        584,100
      16,000  Secom Co. Ltd. ................      620,342        829,545
       8,000  SEI Investments Co. ...........      352,228        476,480
                                              ------------   ------------
                                                 2,378,690      2,789,245
                                              ------------   ------------
              CABLE AND SATELLITE -- 0.5%
      12,500  Comcast Corp., Cl. A+ .........      488,626        529,125
                                              ------------   ------------
              CHEMICALS AND ALLIED PRODUCTS -- 0.3%
      50,000  Tokai Carbon Co. Ltd. .........      205,108        355,447
                                              ------------   ------------
              COMMUNICATIONS EQUIPMENT -- 0.3%
      14,000  Motorola Inc. .................      355,660        287,840
                                              ------------   ------------
              COMPUTER SOFTWARE AND SERVICES -- 7.3%
      13,000  Adobe Systems Inc.+ ...........      393,518        534,560
       6,000  Apple Computer Inc.+ ..........      448,011        509,040
       9,000  Autodesk Inc.+ ................      332,146        364,140
      22,000  Cisco Systems Inc.+ ...........      447,460        601,260
      15,000  eBay Inc.+ ....................      535,997        451,050
       5,200  Google Inc., Cl. A+ ...........    1,543,104      2,394,496
      44,000  Microsoft Corp. ...............    1,191,220      1,313,840
       8,000  NAVTEQ Corp.+ .................      325,060        279,760
      40,000  Yahoo! Inc.+ ..................    1,438,100      1,021,600
                                              ------------   ------------
                                                 6,654,616      7,469,746
                                              ------------   ------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              CONSUMER PRODUCTS -- 3.5%
       7,000  Christian Dior SA ............. $    438,852   $    746,155
      15,314  Compagnie Financiere
                Richemont AG, Cl. A .........      443,000        892,322
       3,000  Harman International
                Industries Inc. .............      261,892        299,730
      12,500  Procter & Gamble Co. ..........      698,207        803,375
       4,000  Swatch Group AG ...............      464,406        883,874
                                              ------------   ------------
                                                 2,306,357      3,625,456
                                              ------------   ------------
              DIVERSIFIED INDUSTRIAL -- 4.4%
      24,000  Amano Corp. ...................      422,744        301,298
      10,000  Bouygues SA ...................      343,461        641,938
      16,000  Emerson Electric Co. ..........      677,600        705,440
      57,000  General Electric Co. ..........    2,064,759      2,120,970
      13,000  ITT Corp. .....................      570,141        738,660
                                              ------------   ------------
                                                 4,078,705      4,508,306
                                              ------------   ------------
              ELECTRONICS -- 1.1%
      25,000  Intel Corp. ...................      558,120        506,250
      10,000  Microchip Technology Inc. .....      287,500        327,000
      10,000  Texas Instruments Inc. ........      193,981        288,000
                                              ------------   ------------
                                                 1,039,601      1,121,250
                                              ------------   ------------
              ENERGY AND UTILITIES -- 9.2%
       7,000  Apache Corp. ..................      466,957        465,570
       6,000  BP plc, ADR ...................      349,775        402,600
       7,000  Canadian Natural
                Resources Ltd. ..............      308,416        372,610
       5,672  Devon Energy Corp. ............      278,827        380,477
       5,000  EOG Resources Inc. ............      345,118        312,250
      10,000  Halliburton Co. ...............      362,269        310,500
      19,000  Hess Corp. ....................      906,737        941,830
       6,900  Imperial Oil Ltd. .............      253,504        254,013
       4,500  National-Oilwell Varco Inc.+ ..      311,678        275,310
       9,000  Noble Corp. ...................      652,726        685,350
      15,000  Norsk Hydro ASA, ADR ..........      415,709        460,050
      10,000  Occidental Petroleum Corp. ....      375,302        488,300
       7,000  Petroleo Brasileiro SA, ADR ...      618,845        720,930
      10,000  Saipem SpA ....................      240,421        260,577
       5,200  Sasol Ltd. ....................      238,251        191,881
       2,000  Sasol Ltd., ADR ...............       76,260         73,800
       9,000  Schlumberger Ltd. .............      286,097        568,440
      15,000  Statoil ASA, ADR ..............      445,603        394,800
       8,252  Total SA ......................      338,493        595,303
       7,000  Transocean Inc.+ ..............      361,090        566,230
       6,000  Weatherford
                International Ltd.+ .........      269,562        250,740
      10,000  XTO Energy Inc. ...............      457,244        470,500
                                              ------------   ------------
                                                 8,358,884      9,442,061
                                              ------------   ------------

                 See accompanying notes to financial statements.

                                       5

THE GAMCO GLOBAL GROWTH FUND
SCHEDULE OF INVESTMENTS (CONTINUED) -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------
                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS (Continued)
              ENTERTAINMENT -- 2.9%
      69,500  Publishing &
                Broadcasting Ltd. ........... $    375,524   $  1,171,253
      15,000  Time Warner Inc. ..............      313,950        326,700
      16,300  Viacom Inc., Cl. B+ ...........      632,090        668,789
      20,180  Vivendi .......................      436,833        788,766
                                              ------------   ------------
                                                 1,758,397      2,955,508
                                              ------------   ------------
              EQUIPMENT AND SUPPLIES -- 0.9%
       3,900  Keyence Corp. .................      791,419        966,438
                                              ------------   ------------
              FINANCIAL SERVICES -- 18.7%
       5,000  Affiliated Managers
                Group Inc.+ .................      483,000        525,650
       5,500  Allianz SE ....................      704,835      1,123,596
      18,500  American Express Co. ..........      962,816      1,122,395
      16,000  American International
                Group Inc. ..................    1,107,196      1,146,560
      50,000  Anglo Irish Bank Corp. plc ....      117,562      1,036,895
      30,000  Australia & New Zealand
                Banking Group Ltd. ..........      505,275        668,024
      30,000  Aviva plc .....................      320,646        482,838
      29,039  Bank of Ireland, Ireland ......      280,065        670,824
      10,000  Bank of Ireland, London .......      159,392        231,008
      50,000  Barclays plc ..................      655,833        714,663
      16,533  China Life Insurance
                Co. Ltd., ADR ...............      379,083        835,099
      18,000  Citigroup Inc. ................      869,737      1,002,600
      12,000  Credit Suisse Group, ADR ......      616,065        838,200
       2,500  Goldman Sachs Group Inc. ......      262,375        498,375
       3,700  Julius Baer Holding Ltd. AG ...      353,875        407,501
       4,000  Legg Mason Inc. ...............      471,533        380,200
       6,895  Merrill Lynch & Co. Inc. ......      391,748        641,924
          40  Mitsubishi UFJ Financial
                Group Inc. ..................      486,680        494,097
      45,500  Nikko Cordial Corp. ...........      494,198        521,890
       8,200  Royal Bank of Canada ..........      351,545        390,259
      42,700  Standard Chartered plc ........      878,245      1,247,399
      10,000  State Street Corp. ............      479,051        674,400
      10,000  T. Rowe Price Group Inc. ......      408,771        437,700
      27,000  The 77 Bank Ltd. ..............      197,165        171,295
       6,250  Toronto-Dominion Bank .........      353,908        373,665
      13,000  UBS AG, New York ..............      534,928        784,290
       4,000  UBS AG, Switzerland ...........      136,647        243,086
      14,000  Wells Fargo & Co. .............      506,174        497,840
      44,500  Westpac Banking Corp. .........      703,450        851,453
      16,000  Yamaguchi Financial
                Group Inc. ..................      202,431        164,027
                                              ------------   ------------
                                                14,374,229     19,177,753
                                              ------------   ------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              FOOD AND BEVERAGE -- 7.8%
      53,000  Ajinomoto Co. Inc. ............ $    602,454   $    700,551
      12,000  ARIAKE JAPAN Co. Ltd. .........      336,640        234,444
      60,000  Cadbury Schweppes plc .........      592,403        642,022
      16,996  Coca-Cola Hellenic
                Bottling Co. SA .............      358,399        664,090
      90,000  Davide Campari-Milano SpA .....      418,375        892,218
      70,000  Diageo plc ....................      891,438      1,374,014
       6,000  Groupe Danone .................      669,806        909,247
       3,000  Nestle SA .....................      850,228      1,066,065
       7,000  PepsiCo Inc. ..................      360,029        437,850
       3,763  Pernod-Ricard SA ..............      401,489        864,315
       5,000  Starbucks Corp.+ ..............      145,420        177,100
                                              ------------   ------------
                                                 5,626,681      7,961,916
                                              ------------   ------------
              HEALTH CARE -- 9.6%
       4,400  Alcon Inc. ....................      497,570        491,788
       6,700  Genentech Inc.+ ...............      374,910        543,571
       6,500  Genzyme Corp.+ ................      381,592        400,270
       4,900  Gilead Sciences Inc.+ .........      316,355        318,157
      20,000  GlaxoSmithKline plc ...........      423,287        526,306
      23,500  Hisamitsu
                Pharmaceutical Co. Inc. .....      458,023        744,464
      15,000  Novartis AG ...................      615,192        864,793
      10,000  Novo Nordisk A/S, ADR .........      797,927        836,300
       4,300  Roche Holding AG ..............      343,824        771,071
       7,130  Sanofi-Aventis ................      503,662        658,364
      10,000  St. Jude Medical Inc.+ ........      424,057        365,600
       2,400  Straumann Holding AG ..........      504,079        581,042
       9,000  Stryker Corp. .................      424,681        495,990
       4,800  Synthes Inc. ..................      398,130        572,376
      10,000  Takeda
                Pharmaceutical Co. Ltd. .....      445,295        686,526
      11,000  Varian Medical Systems Inc.+ ..      426,121        523,270
       6,500  Zimmer Holdings Inc.+ .........      536,295        509,470
                                              ------------   ------------
                                                 7,871,000      9,889,358
                                              ------------   ------------
              HOTELS AND GAMING -- 3.2%
       8,550  Greek Organization of Football
                Prognostics SA ..............      101,079        330,465
      19,000  Hilton Hotels Corp. ...........      493,147        663,100
      37,000  InterContinental Hotels
                Group plc ...................      759,700        914,260
      63,303  Ladbrokes plc .................      647,704        518,405
       7,000  Marriott International Inc.,
                Cl. A .......................      266,140        334,040
       8,000  Starwood Hotels & Resorts
                Worldwide Inc. ..............      480,970        500,000
                                              ------------   ------------
                                                 2,748,740      3,260,270
                                              ------------   ------------


                 See accompanying notes to financial statements.

                                       6

THE GAMCO GLOBAL GROWTH FUND
SCHEDULE OF INVESTMENTS (CONTINUED) -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS (Continued)
              METALS AND MINING -- 5.8%
       6,000  Allegheny Technologies Inc. ... $    384,745   $    544,080
      15,000  Anglo American plc ............      546,531        731,600
      20,000  BHP Billiton plc ..............      317,858        365,947
      10,500  Commercial Metals Co. .........      235,905        270,900
       8,404  Freeport-McMoRan Copper
                & Gold Inc., Cl. B ..........      351,453        468,355
      25,026  Gold Fields Ltd., ADR .........      307,575        472,491
       9,000  Lonmin plc ....................      545,871        530,417
       5,228  Peabody Energy Corp. ..........       66,790        211,264
       3,000  Phelps Dodge Corp. ............      247,290        359,160
      16,000  Rio Tinto plc .................      587,295        851,487
      14,000  Titanium Metals Corp.+ ........      434,402        413,140
      14,666  Xstrata plc ...................      376,296        732,252
                                              ------------   ------------
                                                 4,402,011      5,951,093
                                              ------------   ------------
              RETAIL -- 5.8%
      12,000  Coach Inc.+ ...................      335,245        515,520
       7,000  Costco Wholesale Corp. ........      370,362        370,090
      12,150  Hennes & Mauritz AB, Cl. B ....      512,220        614,071
       9,000  Kohl's Corp.+ .................      575,984        615,870
      28,000  Matsumotokiyoshi Co. Ltd. .....      750,942        622,327
      15,000  Next plc ......................      507,851        528,655
      24,000  Seven & I Holdings Co. Ltd. ...      813,032        746,187
       9,000  Tiffany & Co. .................      290,462        353,160
      10,000  Walgreen Co. ..................      410,655        458,900
       8,000  Whole Foods Market Inc. .......      399,510        375,440
      39,100  Woolworths Ltd. ...............      607,675        737,637
                                              ------------   ------------
                                                 5,573,938      5,937,857
                                              ------------   ------------
              TELECOMMUNICATIONS -- 1.8%
      10,000  Corning Inc.+ .................      247,731        187,100
          85  KDDI Corp. ....................      432,573        576,404
      28,000  Verizon Communications Inc. ...      935,541      1,042,720
                                              ------------   ------------
                                                 1,615,845      1,806,224
                                              ------------   ------------
              WIRELESS COMMUNICATIONS -- 0.3%
       8,000  QUALCOMM Inc. .................      321,360        302,320
                                              ------------   ------------
              TOTAL COMMON STOCKS ...........   76,048,242     95,179,354
                                              ------------   ------------
              EXCHANGE TRADED FUNDS -- 6.3%
      35,500  iShares MSCI Emerging
                Markets Index ...............    3,429,238      4,053,035
      31,000  Vanguard Emerging
                Markets VIPERS ..............    2,324,490      2,399,090
                                              ------------   ------------
              TOTAL EXCHANGE
                TRADED FUNDS ................    5,753,728      6,452,125
                                              ------------   ------------

  PRINCIPAL                                                      MARKET
    AMOUNT                                        COST           VALUE
  ---------                                       ----           -------

              U.S. GOVERNMENT OBLIGATIONS -- 0.9%
  $961,000    U.S. Treasury Bills,
                4.882% to 4.983%++,
                01/04/07 to 03/22/07 ........ $    952,206   $    952,194
                                              ------------   ------------
              TOTAL
                INVESTMENTS -- 99.9% ........ $ 82,754,176    102,583,673
                                              ============
              Other Assets and Liabilities (Net) -- 0.1%           93,122
                                                             ------------
              NET ASSETS -- 100.0% .......................   $102,676,795
                                                             ============
- ----------------
+      Non-income producing security.
++     Represents annualized yield at date of purchase.
ADR    American Depository Receipt
VIPERS Vanguard Index Participation Equity Receipts




                                           % OF
                                          MARKET         MARKET
GEOGRAPHIC DIVERSIFICATION                 VALUE          VALUE
- --------------------------               --------        --------
North America .........................    49.0%   $ 50,304,855
Europe ................................    34.4      35,242,865
Japan .................................     8.7       8,886,606
Asia/Pacific ..........................     4.1       4,263,465
Latin America .........................     3.1       3,147,710
South Africa ..........................     0.7         738,172
                                          -----    ------------
                                          100.0%   $102,583,673
                                          =====    ============



                 See accompanying notes to financial statements.

                                       7


                          THE GAMCO GLOBAL GROWTH FUND

STATEMENT OF ASSETS AND LIABILITIES
DECEMBER 31, 2006
- --------------------------------------------------------------------------------
ASSETS:
  Investments, at value (cost $82,754,176) ...............   $102,583,673
  Foreign currency, at value (cost $297,155) .............        301,344
  Cash ...................................................          1,224
  Dividends and interest receivable ......................        150,374
  Receivable for Fund shares sold ........................          6,422
  Prepaid expense ........................................          5,289
                                                             ------------
  TOTAL ASSETS ...........................................    103,048,326
                                                             ------------
LIABILITIES:
  Payable for Fund shares redeemed .......................        111,579
  Payable for investment advisory fees ...................         87,747
  Payable for shareholder
    communications expenses ..............................         47,700
  Payable for legal and audit fees .......................         45,117
  Payable for shareholder services fees ..................         35,825
  Payable for distribution fees ..........................         22,248
  Payable for accounting fees ............................          7,501
  Other accrued expenses .................................         13,814
                                                             ------------
  TOTAL LIABILITIES ......................................        371,531
                                                             ------------
  NET ASSETS applicable to 4,478,874
      shares outstanding .................................   $102,676,795
                                                             ============
NET ASSETS CONSIST OF:
  Paid-in capital, each class at $0.001 par value ........   $137,074,169
  Accumulated net investment income ......................          2,669
  Accumulated net realized loss on investments
    and foreign currency transactions ....................    (54,238,459)
  Net unrealized appreciation on investments .............     19,829,497
  Net unrealized appreciation on foreign
    currency translations ................................          8,919
                                                             ------------
  NET ASSETS .............................................   $102,676,795
                                                             ============
SHARES OF CAPITAL STOCK:
  CLASS AAA:
  Net Asset Value, offering and redemption price
    per share ($100,882,316 / 4,399,604 shares
    outstanding; 75,000,000 shares authorized) ...........         $22.93
                                                                   ======
  CLASS A:
  Net Asset Value and redemption price
    per share ($1,294,266 / 56,433 shares
    outstanding; 50,000,000 shares authorized) ...........         $22.93
                                                                   ======
  Maximum offering price per share (NAV / .9425,
    based on maximum sales charge of 5.75%
    of the offering price) ...............................         $24.33
                                                                   ======
  CLASS B:
  Net Asset Value and offering price per share
    ($225,165 / 10,261 shares outstanding;
    25,000,000 shares authorized) ........................         $21.94(a)
                                                                   ======
  CLASS C:
  Net Asset Value and offering price per share
    ($275,048 / 12,576 shares outstanding;
    25,000,000 shares authorized) ........................         $21.87(a)
                                                                   ======

- --------------------
(a) Redemption price varies based on the length of time held.

STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 2006
- --------------------------------------------------------------------------------
INVESTMENT INCOME:
  Dividends (net of foreign taxes of $58,054) ............    $ 2,128,609
  Interest ...............................................         53,025
                                                              -----------
  TOTAL INVESTMENT INCOME ................................      2,181,634
                                                              -----------
EXPENSES:
  Investment advisory fees ...............................      1,067,264
  Distribution fees - Class AAA ..........................        262,328
  Distribution fees - Class A ............................          3,313
  Distribution fees - Class B ............................          2,109
  Distribution fees - Class C ............................          2,589
  Shareholder services fees ..............................        184,290
  Legal and audit fees ...................................         96,386
  Shareholder communications expenses ....................         95,538
  Custodian fees .........................................         46,330
  Accounting fees ........................................         45,000
  Registration expenses ..................................         39,614
  Directors' fees ........................................         11,839
  Interest expense .......................................          2,005
  Miscellaneous expenses .................................         45,309
                                                              -----------
  TOTAL EXPENSES .........................................      1,903,914
                                                              -----------
  NET INVESTMENT INCOME ..................................        277,720
                                                              -----------
NET REALIZED AND UNREALIZED GAIN (LOSS)
  ON INVESTMENTS AND FOREIGN CURRENCY:
  Net realized gain on investments .......................     14,069,656
  Net realized gain on foreign
    currency transactions ................................            883
                                                              -----------
  Net realized gain on investments and foreign
    currency transactions ................................     14,070,539
                                                              -----------
  Net change in unrealized appreciation/
    depreciation on investments ..........................     (1,931,252)
  Net change in unrealized appreciation/
    depreciation on foreign currency
    translations .........................................         10,451
                                                              -----------
  Net change in unrealized appreciation/
    depreciation on investments
    and foreign currency translations ....................     (1,920,801)
                                                              -----------
NET REALIZED AND UNREALIZED GAIN (LOSS)
  ON INVESTMENTS AND FOREIGN CURRENCY ....................     12,149,738
                                                              -----------
NET INCREASE IN NET ASSETS RESULTING
  FROM OPERATIONS ........................................    $12,427,458
                                                              ===========

                 See accompanying notes to financial statements.

                                       8

                          THE GAMCO GLOBAL GROWTH FUND

STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------


                                                                                   YEAR ENDED           YEAR ENDED
                                                                                DECEMBER 31, 2006    DECEMBER 31, 2005
                                                                                -----------------    -----------------
OPERATIONS:
                                                                                                 
  Net investment income .......................................................   $    277,720        $    110,182
  Net realized gain on investments and foreign currency transactions ..........     14,070,539           9,232,898
  Net change in unrealized appreciation/depreciation on investments and
    foreign currency translations .............................................     (1,920,801)          4,268,855
                                                                                  ------------        ------------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ........................     12,427,458          13,611,935
                                                                                  ------------        ------------
DISTRIBUTIONS TO SHAREHOLDERS:
  Net investment income:
    Class AAA .................................................................       (272,763)            (92,625)
    Class A ...................................................................         (3,545)             (2,247)
                                                                                  ------------        ------------
  TOTAL DISTRIBUTIONS TO SHAREHOLDERS .........................................       (276,308)            (94,872)
                                                                                  ------------        ------------
CAPITAL SHARE TRANSACTIONS:
    Class AAA .................................................................    (19,507,826)        (18,980,399)
    Class A ...................................................................         (2,805)            576,999
    Class B ...................................................................            (60)             (3,817)
    Class C ...................................................................         14,905             171,726
                                                                                  ------------        ------------
  NET DECREASE IN NET ASSETS FROM CAPITAL SHARE TRANSACTIONS ..................    (19,495,786)        (18,235,491)
                                                                                  ------------        ------------
  REDEMPTION FEES .............................................................            148                 873
                                                                                  ------------        ------------
  NET DECREASE IN NET ASSETS ..................................................     (7,344,488)         (4,717,555)
NET ASSETS:
  Beginning of period .........................................................    110,021,283         114,738,838
                                                                                  ------------        ------------
  End of period (including undistributed net investment income of
    $2,669 and $374, respectively) ............................................   $102,676,795        $110,021,283
                                                                                  ============        ============


NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
1.  ORGANIZATION.  The GAMCO  Global  Growth Fund (the  "Fund"),  formerly,  The
Gabelli  Global Growth Fund, a series of GAMCO Global  Series  Funds,  Inc. (the
"Corporation"),  formerly,  Gabelli Global Series Funds,  Inc., was organized on
July 16, 1993 as a Maryland corporation.  The Fund is a non-diversified open-end
management  investment  company  registered under the Investment  Company Act of
1940, as amended (the "1940 Act"), and one of four separately managed portfolios
(collectively,   the  "Portfolios")  of  the  Corporation.  The  Fund's  primary
objective is capital  appreciation.  The Fund commenced investment operations on
February  7, 1994.  Prior to January 13,  2000,  the Fund's name was The Gabelli
Global Interactive Couch Potato(R) Fund.

2. SIGNIFICANT  ACCOUNTING POLICIES.  The preparation of financial statements in
accordance with United States ("U.S.") generally accepted accounting  principles
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.  The  following  is a summary of  significant  accounting
policies followed by the Fund in the preparation of its financial statements.

SECURITY  VALUATION.  Portfolio  securities  listed or  traded  on a  nationally
recognized securities exchange or traded in the U.S. over-the-counter market for
which market quotations are readily available are valued at the last quoted sale
price or a market's  official  closing  price as of the close of business on the
day the  securities  are being  valued.  If there  were no sales  that day,  the
security is valued at the  average of the  closing  bid and asked  prices or, if
there were no asked  prices  quoted on that day,  then the security is valued at
the closing bid price on that day. If no bid or asked  prices are quoted on such
day,  the  security is valued at the most  recently  available  price or, if the
Board of  Directors  (the  "Board") so  determines,  by such other method as the
Board shall determine in good faith to reflect its fair market value.  Portfolio
securities  traded on more than one national  securities  exchange or market are
valued according to the broadest and most  representative  market, as determined
by Gabelli Funds, LLC (the "Adviser").


                                       9

THE GAMCO GLOBAL GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
Portfolio  securities  primarily traded on a foreign market are generally valued
at the preceding  closing values of such securities on the relevant market,  but
may be fair valued  pursuant to  procedures  established  by the Board if market
conditions change  significantly after the close of the foreign market but prior
to the  close of  business  on the day the  securities  are being  valued.  Debt
instruments  with  remaining  maturities  of 60 days or less that are not credit
impaired are valued at amortized cost,  unless the Board  determines such amount
does not reflect the securities' fair value, in which case these securities will
be fair valued as determined by the Board.  Debt  instruments  having a maturity
greater  than 60 days for which  market  quotations  are readily  available  are
valued at the average of the latest bid and asked prices. If there were no asked
prices  quoted on such day,  the security is valued using the closing bid price.
Futures contracts are valued at the closing  settlement price of the exchange or
board of trade on which the applicable contract is traded.

Securities and assets for which market  quotations are not readily available are
fair  valued as  determined  by the  Board.  Fair  valuation  methodologies  and
procedures may include, but are not limited to: analysis and review of available
financial and non-financial  information  about the company;  comparisons to the
valuation and changes in valuation of similar securities, including a comparison
of foreign  securities to the equivalent U.S. dollar value ADR securities at the
close of the U.S.  exchange;  and evaluation of any other information that could
be indicative of the value of the security.

In September 2006, the Financial  Accounting Standards Board (the "FASB") issued
Statement  of  Financial   Accounting   Standards   ("SFAS")   157,  Fair  Value
Measurements,  which  clarifies  the  definition  of  fair  value  and  requires
companies  to expand  their  disclosure  about the use of fair  value to measure
assets and  liabilities  in interim  and annual  periods  subsequent  to initial
recognition.  Adoption of SFAS 157  requires  the use of the price that would be
received  to sell  an  asset  or paid to  transfer  a  liability  in an  orderly
transaction  between market  participants at the  measurement  date. SFAS 157 is
effective  for  financial  statements  issued for fiscal years  beginning  after
November 15, 2007, and interim  periods within those fiscal years. At this time,
management is in the process of reviewing the  requirements  of SFAS 157 against
its current valuation policies to determine future applicability.

REPURCHASE  AGREEMENTS.  The Fund may  enter  into  repurchase  agreements  with
primary  government  securities dealers recognized by the Federal Reserve Board,
with  member  banks of the  Federal  Reserve  System,  or with other  brokers or
dealers that meet credit  guidelines  established by the Adviser and reviewed by
the Board.  Under the terms of a typical  repurchase  agreement,  the Fund takes
possession  of an  underlying  debt  obligation  subject to an obligation of the
seller to repurchase,  and the Fund to resell,  the obligation at an agreed-upon
price and time, thereby  determining the yield during the Fund's holding period.
The Fund will always receive and maintain  securities as collateral whose market
value, including accrued interest,  will be at least equal to 102% of the dollar
amount  invested by the Fund in each  agreement.  The Fund will make payment for
such  securities  only upon  physical  delivery  or upon  evidence of book entry
transfer of the collateral to the account of the  custodian.  To the extent that
any repurchase transaction exceeds one business day, the value of the collateral
is marked-to-market on a daily basis to maintain the adequacy of the collateral.
If the seller defaults and the value of the collateral declines or if bankruptcy
proceedings   are  commenced  with  respect  to  the  seller  of  the  security,
realization of the collateral by the Fund may be delayed or limited. At December
31, 2006, there were no open repurchase agreements.

FUTURES  CONTRACTS.  The Fund may engage in futures contracts for the purpose of
hedging  against  changes in the value of its  portfolio  securities  and in the
value of  securities  it  intends  to  purchase.  Upon  entering  into a futures
contract,  the Fund is required to deposit  with the broker an amount of cash or
cash equivalents equal to a certain  percentage of the contract amount.  This is
known as the "initial margin". Subsequent payments ("variation margin") are made
or received by the Fund each day,  depending  on the daily  fluctuations  in the
value    of    the    contract,     which    are    included    in    unrealized
appreciation/depreciation   on  investments  and  futures  contracts.  The  Fund
recognizes a realized gain or loss when the contract is closed.

                                       10

THE GAMCO GLOBAL GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
There are several  risks in  connection  with the use of futures  contracts as a
hedging  instrument.   The  change  in  value  of  futures  contracts  primarily
corresponds  with the  value  of their  underlying  instruments,  which  may not
correlate with the change in value of the hedged investments. In addition, there
is the risk that the Fund may not be able to enter  into a  closing  transaction
because of an illiquid  secondary  market.  At December 31, 2006,  there were no
open futures  contracts.

SECURITIES SOLD SHORT.  The Fund may enter into short sale  transactions.  Short
selling involves selling  securities that may or may not be owned and, at times,
borrowing the same securities for delivery to the purchaser,  with an obligation
to replace such borrowed  securities at a later date. The proceeds received from
short sales are recorded as liabilities  and the Fund records an unrealized gain
or loss to the extent of the  difference  between the proceeds  received and the
value of an open short position on the day of determination.  The Fund records a
realized gain or loss when the short  position is closed out. By entering into a
short sale, the Fund bears the market risk of an unfavorable change in the price
of the security sold short.  Dividends on short sales are recorded as an expense
by the Fund on the  ex-dividend  date and  interest  expense is  recorded on the
accrual  basis.  The Fund did not hold any short  positions  as of December  31,
2006.

FORWARD  FOREIGN  EXCHANGE  CONTRACTS.  The Fund may engage in  forward  foreign
exchange contracts for hedging a specific transaction with respect to either the
currency in which the  transaction is denominated or another  currency as deemed
appropriate by the Adviser. Forward foreign exchange contracts are valued at the
forward  rate and are  marked-to-market  daily.  The  change in market  value is
included in  unrealized  appreciation/depreciation  on  investments  and foreign
currency translations.  When the contract is closed, the Fund records a realized
gain or loss equal to the  difference  between the value of the  contract at the
time it was opened and the value at the time it was  closed.

The use of forward foreign exchange contracts does not eliminate fluctuations in
the underlying prices of the Fund's portfolio securities,  but it does establish
a rate of exchange that can be achieved in the future.  Although forward foreign
exchange  contracts  limit the risk of loss due to a decline in the value of the
hedged currency, they also limit any potential gain that might result should the
value of the currency increase. In addition,  the Fund could be exposed to risks
if the  counterparties  to the  contracts  are unable to meet the terms of their
contracts.  At December 31, 2006,  there were no open forward  foreign  exchange
contracts.

FOREIGN CURRENCY TRANSLATIONS.  The books and records of the Fund are maintained
in  U.S.  dollars.  Foreign  currencies,   investments,  and  other  assets  and
liabilities  are translated  into U.S.  dollars at the current  exchange  rates.
Purchases  and  sales  of  investment  securities,   income,  and  expenses  are
translated  at the exchange  rate  prevailing  on the  respective  dates of such
transactions.  Unrealized  gains and losses that result from  changes in foreign
exchange rates and/or changes in market prices of securities  have been included
in unrealized  appreciation/depreciation  on  investments  and foreign  currency
translations.  Net realized  foreign  currency  gains and losses  resulting from
changes in exchange  rates include  foreign  currency  gains and losses  between
trade date and settlement date on investment  securities  transactions,  foreign
currency  transactions,  and the difference  between the amounts of interest and
dividends  recorded on the books of the Fund and the amounts actually  received.
The  portion of foreign  currency  gains and losses  related to  fluctuation  in
exchange rates between the initial trade date and subsequent  sale trade date is
included in realized  gain/(loss) on investments.

FOREIGN  SECURITIES.  The Fund  may  directly  purchase  securities  of  foreign
issuers.  Investing in securities of foreign issuers  involves special risks not
typically  associated  with investing in securities of U.S.  issuers.  The risks
include  possible  revaluation of currencies,  the ability to repatriate  funds,
less complete financial information about companies, and possible future adverse
political  and  economic  developments.  Moreover,  securities  of many  foreign
issuers and their markets may be less liquid and their prices more volatile than
those of securities of comparable U.S. issuers.

                                       11

THE GAMCO GLOBAL GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
FOREIGN  TAXES.  The Fund may be subject to  foreign  taxes on income,  gains on
investments,  or currency  repatriation,  a portion of which may be recoverable.
The Fund will accrue such taxes and  recoveries  as  applicable,  based upon its
current interpretation of tax rules and regulations that exist in the markets in
which it invests.

SECURITIES  TRANSACTIONS  AND INVESTMENT  INCOME.  Securities  transactions  are
accounted  for on the  trade  date  with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization  of premium and  accretion  of discount) is recorded on the accrual
basis.  Premiums  and  discounts  on debt  securities  are  amortized  using the
effective  yield  to  maturity  method.  Dividend  income  is  recorded  on  the
ex-dividend date except for certain  dividends which are recorded as soon as the
Fund is informed of the dividend.

DETERMINATION   OF  NET  ASSET  VALUE  AND  CALCULATION  OF  EXPENSES.   Certain
administrative  expenses are common to, and allocated among,  various affiliated
funds.  Such allocations are made on the basis of each Fund's average net assets
or other criteria  directly  affecting the expenses as determined by the Adviser
pursuant to procedures established by the Board.

In calculating  the net asset value ("NAV") per share of each class,  investment
income, realized and unrealized gains and losses,  redemption fees, and expenses
other than class specific expenses,  are allocated daily to each class of shares
based upon the  proportion  of net assets of each class at the beginning of each
day.  Distribution expenses are borne solely by the class incurring the expense.

CUSTODIAN FEE CREDITS AND INTEREST EXPENSE. When cash balances are maintained in
the  custody  account,  the Fund  receives  credits  which  are  used to  offset
custodian  fees.  The gross  expenses  paid under the  custody  arrangement  are
included in custodian fees in the Statement of Operations with the corresponding
expense offset, if any, shown as "custodian fee credits". When cash balances are
overdrawn, the Fund is charged an overdraft fee equal to 2.00% above the Federal
Funds rate on  outstanding  balances.  This  amount,  if any,  would be shown as
"interest   expense"  in  the   Statement  of   Operations.

DISTRIBUTIONS TO SHAREHOLDERS. Distributions to shareholders are recorded on the
ex-dividend date.  Distributions to shareholders are based on income and capital
gains as determined in accordance with Federal income tax regulations, which may
differ from income and capital gains as determined under U.S. generally accepted
accounting  principles.   These  differences  are  primarily  due  to  differing
treatments  of income and gains on various  investment  securities  and  foreign
currency  transactions  held by the  Fund,  timing  differences,  and  differing
characterizations  of  distributions  made by the Fund.  Distributions  from net
investment  income include net realized gains on foreign currency  transactions.
These book/tax  differences are either temporary or permanent in nature.  To the
extent these differences are permanent,  adjustments are made to the appropriate
capital   accounts   in  the   period   when  the   differences   arise.   These
reclassifications  have no impact on the NAV of the Fund.  For the  fiscal  year
ended December 31, 2006, reclassifications were made to increase accumulated net
investment  income  by  $883,  to  increase  accumulated  net  realized  loss on
investments  and  foreign  currency  transactions  by $882,  with an  offsetting
adjustment to paid-in capital.

The tax character of  distributions  paid during the fiscal years ended December
31, 2006 and  December  31, 2005 was  $276,308  and  $94,872,  respectively,  of
ordinary income.

PROVISION  FOR  INCOME  TAXES.  The Fund  intends  to  continue  to qualify as a
regulated  investment company under Subchapter M of the Internal Revenue Code of
1986, as amended (the  "Code").  It is the policy of the Fund to comply with the
requirements  of the Code  applicable to regulated  investment  companies and to
distribute  substantially  all of its net investment  company taxable income and
net capital gains. Therefore, no provision for Federal income taxes is required.

                                       12

THE GAMCO GLOBAL GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
As of December 31, 2006, the components of  accumulated  earnings/(losses)  on a
tax basis were as follows:

          Undistributed ordinary income ....................... $      2,669
          Capital loss carryforwards ..........................  (54,218,953)
          Net unrealized appreciation on investments, foreign
            currency, and foreign receivables and payables ....   19,818,910
                                                                ------------
          Total accumulated loss .............................. $(34,397,374)
                                                                ============

At December 31, 2006,  the Fund has net capital loss  carryforwards  for Federal
income  tax  purposes  of  $54,218,953,  which are  available  to reduce  future
required  distributions  of net capital gains to  shareholders.  $12,969,766  is
available through 2009; $39,969,419 is available through 2010; and $1,279,768 is
available  through 2011.  For the fiscal year ended  December 31, 2006, the Fund
utilized capital loss carryforwards of $13,953,674.

The following  summarizes the tax cost of investments and the related unrealized
appreciation/(depreciation) at December 31, 2006:



                                                                     GROSS            GROSS
                                                                  UNREALIZED       UNREALIZED       NET UNREALIZED
                                                 COST            APPRECIATION     DEPRECIATION       APPRECIATION
                                                 ----            ------------     ------------       ------------
                                                                                          
          Investments ....................... $82,773,682        $21,701,299      $(1,891,308)        $19,809,991

At December 31, 2006, the difference between book basis and tax basis unrealized
appreciation  was  primarily  due to  deferral of losses from wash sales for tax
purposes.

In July 2006, the FASB issued Interpretation No. 48, "Accounting for Uncertainty
in  Income  Taxes,   an   Interpretation   of  FASB  Statement  No.  109"  ("the
Interpretation").  The  Interpretation  establishes for all entities,  including
pass-through  entities  such as the Fund,  a  minimum  threshold  for  financial
statement  recognition  of the benefit of positions  taken in filing tax returns
(including  whether  an entity is  taxable in a  particular  jurisdiction),  and
requires certain expanded tax disclosures.  The Interpretation is required to be
implemented  for a  calendar-year  open-end Fund no later than its June 29, 2007
NAV, and is to be applied to all open tax years as of the date of effectiveness.
Management has begun to evaluate the  application of the  Interpretation  to the
Fund, and is not in a position at this time to estimate the  significance of its
impact, if any, on the Fund's financial statements.

3. INVESTMENT  ADVISORY AGREEMENT AND OTHER  TRANSACTIONS.  The Fund has entered
into an  investment  advisory  agreement  (the  "Advisory  Agreement")  with the
Adviser which provides that the Fund will pay the Adviser a fee,  computed daily
and paid monthly,  at the annual rate of 1.00% of the value of its average daily
net assets.  In accordance with the Advisory  Agreement,  the Adviser provides a
continuous   investment   program  for  the  Fund's   portfolio,   oversees  the
administration  of all aspects of the Fund's business and affairs,  and pays the
compensation  of all  Officers  and  Directors  of the Fund  who are  affiliated
persons of the Adviser.

If total net  assets of the  Corporation  are in  excess  of $100  million,  the
Corporation pays each Director that is not considered to be an affiliated person
an annual retainer of $3,000 plus $500 for each Board meeting  attended and they
are reimbursed for any out of pocket expenses incurred in attending meetings. If
total net assets of the Corporation are below $100 million, the Corporation pays
each Independent  Director an annual retainer of $1,500 plus $250 for each Board
meeting attended and they are reimbursed for any out of pocket expenses incurred
in attending  meetings.  All Board  committee  members  receive $500 per meeting
attended.  Directors  who  are  directors  or  employees  of the  Adviser  or an
affiliated  company receive no compensation  or expense  reimbursement  from the
Fund.

4.  DISTRIBUTION  PLAN.  The Fund's Board has adopted a  distribution  plan (the
"Plan")  for each class of shares  pursuant  to Rule  12b-1  under the 1940 Act.
Gabelli & Company,  Inc.  ("Gabelli &  Company"),  an  affiliate of the Adviser,
serves as  distributor  of the Fund.  Under the Class AAA, Class A, Class B, and
Class C Share Plans,

                                       13

THE GAMCO GLOBAL GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
payments are  authorized  to Gabelli & Company at annual rates of 0.25%,  0.25%,
1.00%,  and  1.00%,  respectively,  of the  average  daily  net  assets of those
classes, the annual limitations under each Plan. Such payments are accrued daily
and paid monthly.

5. PORTFOLIO SECURITIES. Purchases and proceeds from the sales of securities for
the  fiscal  year ended  December  31,  2006,  other  than  short-term  and U.S.
Government Securities, aggregated $48,188,611 and $67,695,657, respectively.

6. TRANSACTIONS WITH AFFILIATES. During the fiscal year ended December 31, 2006,
the  Fund  paid   brokerage   commissions  of  $18,576  to  Gabelli  &  Company.
Additionally,  Gabelli & Company  informed the Fund that it received $1,216 from
investors  representing  commissions  (sales charges and  underwriting  fees) on
sales and redemptions of Fund shares.

The cost of calculating  the Fund's NAV per share is a Fund expense  pursuant to
the Advisory Agreement between the Fund and the Adviser.  During the fiscal year
ended  December  31,  2006,  the Fund paid or accrued  $45,000 to the Adviser in
connection  with the cost of  computing  the Fund's NAV.

7. LINE OF CREDIT.  The Fund has access to an unsecured  line of credit of up to
$25,000,000  from the  custodian for temporary  borrowing  purposes.  Borrowings
under this  arrangement  bear  interest at 0.75% above the Federal Funds rate on
outstanding balances.  This amount, if any, would be shown as "interest expense"
in the Statement of Operations.  At December 31, 2006,  there were no borrowings
outstanding from the line of credit.

The  average  daily  amount of  borrowings  outstanding  from the line of credit
within the fiscal  year ended  December  31,  2006,  was $3,534  with a weighted
average  interest rate of 5.87%.  The maximum amount borrowed at any time during
the  fiscal  year  ended  December  31,  2006 was  $197,000.

8. CAPITAL STOCK TRANSACTIONS.  The Fund currently offers four classes of shares
- - Class  AAA  Shares,  Class A  Shares,  Class B  Shares,  and  Class C  Shares.
Effective  February 15, 2007, Class AAA Shares are offered only to investors who
are  shareholders  prior  to that  date in one or more of the  registered  funds
distributed  by  Gabelli  &  Company.  Class AAA  Shares  are  offered  to these
investors only through selected broker/dealers,  or the transfer agent without a
sales charge.  Class A Shares are subject to a maximum front-end sales charge of
5.75%. Class B Shares are subject to a contingent deferred sales charge ("CDSC")
upon redemption within six years of purchase and automatically  convert to Class
A Shares  approximately eight years after the original purchase.  The applicable
CDSC is equal to a  declining  percentage  of the lesser of the NAV per share at
the date of the  original  purchase or at the date of  redemption,  based on the
length of time  held.  Class C Shares  are  subject to a 1.00% CDSC for one year
after  purchase.  Class B Shares are available only through  exchange of Class B
Shares of other funds  distributed by Gabelli & Company.  The Board has approved
Class I Shares which have not been offered publicly.

The Fund imposes a redemption fee of 2.00% on Class AAA Shares,  Class A Shares,
Class B Shares,  and Class C Shares that are  redeemed or exchanged on or before
the seventh day after the date of a purchase.  (Prior to June 15, 2005, the Fund
imposed a redemption  fee on shares that were redeemed or exchanged on or before
the sixtieth day after the date of a purchase.)  The  redemption fee is deducted
from  the  proceeds  otherwise  payable  to the  redeeming  shareholders  and is
retained by the Fund. The redemption fees retained by the Fund during the fiscal
years ended  December 31, 2006 and December 31, 2005  amounted to $148 and $873,
respectively.

The redemption fee does not apply to shares purchased  through programs that the
Adviser  determined to have  appropriate  short-term  trading policies in place.
Additionally,  certain recordkeepers for qualified and non-qualified  retirement
plans that could not collect the redemption fee at the participant  level due to
systems limitations have received an extension to implement such systems.

                                       14

THE GAMCO GLOBAL GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
Transactions in shares of capital stock were as follows:


                                                              YEAR ENDED                        YEAR ENDED
                                                           DECEMBER 31, 2006                 DECEMBER 31, 2005
                                                     ----------------------------      ---------------------------
                                                        SHARES          AMOUNT            SHARES         AMOUNT
                                                     ----------      ------------      ----------     ------------
                                                               CLASS AAA                         CLASS AAA
                                                     ----------------------------      ---------------------------
                                                                                          
Shares sold ........................................    263,640      $  5,632,563         351,247     $  6,634,577
Shares issued upon reinvestment of distributions ...     11,428           262,618           4,351           89,324
Shares redeemed .................................... (1,183,208)      (25,403,007)     (1,387,756)     (25,704,300)
                                                     ----------      ------------      ----------     ------------
  Net decrease .....................................   (908,140)     $(19,507,826)     (1,032,158)    $(18,980,399)
                                                     ==========      ============      ==========     ============

                                                                CLASS A                           CLASS A
                                                     ----------------------------      ---------------------------
Shares sold ........................................      8,807      $    187,766          36,708     $    724,402
Shares issued upon reinvestment of distributions ...        126             2,895              97            1,998
Shares redeemed ....................................     (8,777)         (193,466)         (7,903)        (149,401)
                                                     ----------      ------------      ----------     ------------
  Net increase (decrease) ..........................        156      $     (2,805)         28,902     $    576,999
                                                     ==========      ============      ==========     ============

                                                                CLASS B                           CLASS B
                                                     ----------------------------      ---------------------------
Shares sold ........................................         --      $         --           1,074     $     18,953
Shares redeemed ....................................         (2)              (60)         (1,326)         (22,770)
                                                     ----------      ------------      ----------     ------------
  Net decrease .....................................         (2)     $        (60)           (252)    $     (3,817)
                                                     ==========      ============      ==========     ============

                                                                CLASS C                           CLASS C
                                                     ----------------------------      ---------------------------
Shares sold ........................................      9,832      $    202,102           9,486     $    178,993
Shares redeemed ....................................     (9,339)         (187,197)           (394)          (7,267)
                                                     ----------      ------------      ----------     ------------
  Net increase .....................................        493      $     14,905           9,092     $    171,726
                                                     ==========      ============      ==========     ============


9.  INDEMNIFICATIONS.  The Fund enters into  contracts that contain a variety of
indemnifications.  The Fund's  maximum  exposure  under  these  arrangements  is
unknown.  However, the Fund has not had prior claims or losses pursuant to these
contracts and expects the risk of loss to be remote.

10. OTHER MATTERS. The Adviser  and/or  affiliates  received  subpoenas from the
Attorney General of the State of New York and the SEC requesting  information on
mutual fund share  trading  practices  involving  certain  funds  managed by the
Adviser.  GAMCO  Investors,   Inc.  ("GAMCO"),  the  Adviser's  parent  company,
responded to these  requests for documents and  testimony.  In June 2006,  GAMCO
began discussions with the SEC regarding a possible resolution of their inquiry.
In February  2007,  the Adviser made an offer of  settlement to the staff of the
SEC for  communication  to the Commission for its  consideration to resolve this
matter.  This offer of settlement is subject to agreement regarding the specific
language of the SEC's administrative order and other settlement documents.  On a
separate matter, in September 2005, the Adviser was informed by the staff of the
SEC that the staff may recommend to the Commission that an administrative remedy
and a monetary penalty be sought from the Adviser in connection with the actions
of two of seven  closed-end  funds  managed by the  Adviser  relating to Section
19(a)  and Rule  19a-1 of the 1940  Act.  These  provisions  require  registered
investment  companies  to provide  written  statements  to  shareholders  when a
dividend is made from a source other than net investment  income.  While the two
closed-end funds sent annual statements and provided other materials  containing
this information, the funds did not send written statements to shareholders with
each  distribution in 2002 and 2003. The Adviser  believes that all of the funds
are now in  compliance.  The Adviser  believes  that these matters would have no
effect on the Fund or any material  adverse effect on the Adviser or its ability
to manage the Fund.
                                       15

THE GAMCO GLOBAL GROWTH FUND
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

Selected data for a share of capital stock outstanding throughout each period:


                             INCOME FROM INVESTMENT OPERATIONS             DISTRIBUTIONS
                          ----------------------------------------    -------------------------
                                           Net
              Net Asset       Net      Realized and      Total
  Period       Value,     Investment    Unrealized        from           Net
   Ended     Beginning      Income     Gain (Loss)   on Investment   Investments       Total
December 31  of Period    (Loss)(a)    Investments     Operations       Income    Distributions
- -----------  ---------    ---------    -----------    ------------    ----------  -------------
                                                                   
CLASS AAA
  2006        $20.43       $ 0.06         $ 2.50         $ 2.56        $(0.06)        $(0.06)
  2005         17.98         0.02           2.45           2.47         (0.02)         (0.02)
  2004         16.43        (0.05)          1.60           1.55            --             --
  2003         11.62        (0.06)          4.86           4.80            --             --
  2002         15.45        (0.08)         (3.75)         (3.83)           --             --
CLASS A
  2006        $20.43       $ 0.06         $ 2.50         $ 2.56        $(0.06)        $(0.06)
  2005         18.01         0.01           2.45           2.46         (0.04)         (0.04)
  2004         16.45        (0.05)          1.61           1.56            --             --
  2003         11.63        (0.06)          4.87           4.81            --             --
  2002         15.47        (0.08)         (3.76)         (3.84)           --             --
CLASS B
  2006        $19.65       $(0.10)        $ 2.39         $ 2.29            --             --
  2005         17.41        (0.12)          2.36           2.24            --             --
  2004         16.02        (0.17)          1.56           1.39            --             --
  2003         11.42        (0.16)          4.75           4.59            --             --
  2002         15.30        (0.17)         (3.71)         (3.88)           --             --
CLASS C
  2006        $19.58       $(0.09)        $ 2.38         $ 2.29            --             --
  2005         17.35        (0.16)          2.39           2.23            --             --
  2004         15.97        (0.19)          1.57           1.38            --             --
  2003         11.38        (0.16)          4.74           4.58            --             --
  2002         15.26        (0.17)         (3.71)         (3.88)           --             --



                                                RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA
                                                -----------------------------------------------

                          Net Asset             Net Assets      Net
  Period                    Value,                End of    Investment                Portfolio
   Ended      Redemption    End of     Total      Period      Income     Operating    Turnover
December 31     Fees(a)     Period    Return+   (in 000's)    (Loss)    Expenses (b)    Rate
- -----------   ----------   --------   -------   ----------   ---------  ------------   -------
                                                                    
CLASS AAA
  2006         $0.00(c)     $22.93      12.5%    $100,883      0.26%       1.78%         46%
  2005          0.00(c)      20.43      13.7      108,433      0.11        1.79(d)       33
  2004          0.00(c)      17.98       9.4      114,011     (0.30)       1.82         100
  2003          0.01         16.43      41.4      132,886     (0.45)       1.71          63
  2002            --         11.62     (24.8)     105,034     (0.58)       1.75          82
CLASS A
  2006         $0.00(c)     $22.93      12.5%    $  1,294      0.28%       1.78%         46%
  2005          0.00(c)      20.43      13.7        1,150      0.03        1.79(d)       33
  2004          0.00(c)      18.01       9.5          493     (0.29)       1.82         100
  2003          0.01         16.45      41.4          426     (0.45)       1.71          63
  2002            --         11.63     (24.8)         176     (0.58)       1.75          82
CLASS B
  2006         $0.00(c)     $21.94      11.7%    $    225     (0.49)%      2.53%         46%
  2005          0.00(c)      19.65      12.9          202     (0.67)       2.54(d)       33
  2004          0.00(c)      17.41       8.7          183     (1.05)       2.57         100
  2003          0.01         16.02      40.3          211     (1.20)       2.46          63
  2002            --         11.42     (25.4)          86     (1.33)       2.50          82
CLASS C
  2006         $0.00(c)     $21.87      11.7%    $    275     (0.42)%      2.53%         46%
  2005          0.00(c)      19.58      12.9          236     (0.90)       2.52(d)       33
  2004          0.00(c)      17.35       8.6           52     (1.17)       2.57         100
  2003          0.01         15.97      40.3          207     (1.20)       2.46          63
  2002            --         11.38     (25.4)         101     (1.33)       2.50          82

- -------------
  + Total return  represents  aggregate  total return of a  hypothetical  $1,000
    investment  at the beginning of the period and sold at the end of the period
    including  reinvestment  of  distributions  and does not reflect  applicable
    sales charges.
(a) Per share amounts have been calculated using the average shares  outstanding
    method.
(b) The Fund incurred  interest expense during the years ended December 31, 2004
    and 2002. If interest expense had not been incurred, the ratios of operating
    expenses to average net assets  would have been 1.81% and 1.70% (Class AAA),
    1.81% and 1.70%  (Class A),  2.56% and 2.45%  (Class B), and 2.56% and 2.45%
    (Class C), respectively. Interest expense in 2006 was immaterial.
(c) Amount represents less than $0.005 per share.
(d) The ratios do not include a reduction of expenses for  custodian fee credits
    on cash balances maintained with the custodian. Including such custodian fee
    credits,  the expense ratios for the year ended December 31, 2005 would have
    been 1.79%,  1.79%,  2.53%,  and 2.52% for Class AAA,  Class A, Class B, and
    Class C, respectively.

                 See accompanying notes to financial statements.

                                       16


THE GAMCO GLOBAL GROWTH FUND
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
- --------------------------------------------------------------------------------

To the Shareholders and Board of Directors of
GAMCO Global Series Funds, Inc.

We have audited the accompanying statement of assets and liabilities,  including
the  schedule of  investments,  of The GAMCO  Global  Growth  Fund (the  "Fund")
(formerly  The Gabelli  Global  Growth  Fund),  a series of GAMCO Global  Series
Funds,  Inc.,  (formerly  Gabelli Global Series Funds,  Inc.) as of December 31,
2006,  and the related  statement  of  operations  for the year then ended,  the
statements of changes in net assets for each of the two years in the period then
ended,  and the  financial  highlights  for each of the four years in the period
then  ended.  These  financial  statements  and  financial  highlights  are  the
responsibility  of the Fund's  management.  Our  responsibility is to express an
opinion on these  financial  statements  and financial  highlights  based on our
audits.  The  financial  highlights  for the year ended  December  31, 2002 were
audited by other  auditors  whose  report dated  January 31, 2003,  expressed an
unqualified opinion on those financial highlights.

We conducted our audits in accordance  with the standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements and financial highlights are free of material  misstatement.  We were
not engaged to perform an audit of the Fund's  internal  control over  financial
reporting.  Our audits included consideration of internal control over financial
reporting as a basis for designing audit  procedures that are appropriate in the
circumstances,  but  not  for  the  purpose  of  expressing  an  opinion  on the
effectiveness  of  the  Fund's  internal   control  over  financial   reporting.
Accordingly,  we express no such opinion. An audit also includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements and financial  highlights,  assessing the accounting  principles used
and  significant  estimates  made by  management,  and  evaluating  the  overall
financial  statement  presentation.  Our  procedures  included  confirmation  of
securities  owned as of December 31,  2006,  by  correspondence  with the Fund's
custodian.  We  believe  that our  audits  provide  a  reasonable  basis for our
opinion.

In our opinion,  the financial  statements and financial  highlights referred to
above present fairly, in all material  respects,  the financial  position of The
GAMCO  Global  Growth  Fund, a series of GAMCO Global  Series  Funds,  Inc.,  at
December 31, 2006, the results of its  operations  for the year then ended,  the
changes in its net assets  for each of the two years in the period  then  ended,
and the  financial  highlights  for each of the four  years in the  period  then
ended, in conformity with U.S. generally accepted accounting principles.

                                                           /s/ ERNST & YOUNG LLP
Philadelphia, Pennsylvania
February 16, 2007

                                       17



                          THE GAMCO GLOBAL GROWTH FUND
BOARD CONSIDERATION AND RE-APPROVAL OF INVESTMENT ADVISORY AGREEMENT (UNAUDITED)

During the six months ended  December  31,  2006,  the Board of Directors of the
Corporation  approved the continuation of the investment advisory agreement with
the Adviser  for the Fund on the basis of the  recommendation  by the  directors
(the "Independent Board Members") who are not "interested  persons" of the Fund.
The  following   paragraphs  summarize  the  material  information  and  factors
considered  by the  Independent  Board  Members  as  well as  their  conclusions
relative to such factors.

NATURE, EXTENT AND QUALITY OF SERVICES. The Independent Board Members considered
information  regarding the Fund's portfolio  managers,  the depth of the analyst
pool  available  to the  Adviser  and  the  portfolio  managers,  the  scope  of
supervisory,  administrative,  shareholder,  and other  services  supervised  or
provided  by the  Adviser,  and the  absence  of  significant  service  problems
reported to the Board.  The  Independent  Board  Members  noted the  experience,
length of service, and reputation of the Fund's portfolio managers.

INVESTMENT PERFORMANCE. The Independent Board Members reviewed the short, medium
and long-term  performance of the Fund against a peer group of global  multi-cap
core and global multi-cap growth funds,  noting its bottom quartile  performance
for the one and three year periods and top third  performance  for the five year
period.

PROFITABILITY. The Independent Board Members reviewed summary data regarding the
profitability  of the Fund to the  Adviser  both with a pro rata  administrative
overhead  charge and with a standalone  administrative  charge.  The Independent
Board  Members  also  noted  an  affiliated   broker  of  the  Adviser  received
distribution fees and minor amounts of sales commissions.

ECONOMIES OF SCALE. The Independent  Board Members  discussed the major elements
of the  Adviser's  cost  structure  and the  relationship  of those  elements to
potential  economies of scale and reviewed  rudimentary data suggesting that 20%
growth in the Fund  would not  produce  meaningful  economies  of scale that the
shareholders would not participate in.

SHARING OF ECONOMIES OF SCALE.  The  Independent  Board  Members  noted that the
investment  advisory  fee  schedule  for the Fund does not take into account any
potential economies of scale that may develop.

SERVICE AND COST COMPARISONS. The Independent Board Members compared the expense
ratios of the investment advisory fee, other expenses, and total expenses of the
Fund to similar  expense  ratios of the peer group of global  multi-cap core and
multi-cap  growth  funds and noted  that the  Adviser's  advisory  fee  includes
substantially  all  administrative  services  of the Fund as well as  investment
advisory  services.  The Independent Board Members noted that the Fund's expense
ratios  were  significantly  higher  than,  and the Fund's  size was lower than,
average  within this group.  The  Independent  Board Members also noted that the
advisory  fee  structure  was  the  same  as  that  in  effect  for  most of the
Gabelli/GAMCO  funds. The Independent Board Members were presented with, but did
not compare,  the advisory fee to the fee for other types of accounts managed by
the Adviser.

CONCLUSIONS.  The  Independent  Board  Members  concluded  that the Fund enjoyed
highly experienced portfolio management services, good ancillary services, and a
mixed performance  record that was  understandable in relation to the disclosure
in the Fund's prospectus and periodic  shareholder reports as to its purpose and
the outlook of the  portfolio  managers.  The  Independent  Board  Members  also
concluded that the Fund's expense ratios and the profitability to the Adviser of
managing  the Fund  were  reasonable,  and that  economies  of scale  were not a
significant factor in their thinking at this time. The Independent Board Members
did not view the potential  profitability  of ancillary  services as material to
their decision.  On the basis of the foregoing and without assigning  particular
weight to any single  conclusion,  the Independent  Board Members  determined to
recommend  continuation of the investment management agreement to the full Board
of Directors.

                                       18


THE GAMCO GLOBAL GROWTH FUND
ADDITIONAL FUND INFORMATION (UNAUDITED)
- --------------------------------------------------------------------------------


The business and affairs of the  Corporation  are managed under the direction of
the Corporation's  Board of Directors.  Information  pertaining to the Directors
and  officers of the  Corporation  is set forth below.  The Fund's  Statement of
Additional   Information  includes  additional   information  about  the  Fund's
Directors and is available, without charge, upon request, by calling 800-GABELLI
(800-422-3554)  or by writing to The GAMCO Global  Growth Fund at One  Corporate
Center, Rye, NY 10580-1422.


                    TERM OF OFFICE     NUMBER OF
NAME, POSITION(S)    AND LENGTH OF   FUNDS IN FUND
    ADDRESS 1             TIME      COMPLEX OVERSEEN     PRINCIPAL OCCUPATION(S)                   OTHER DIRECTORSHIPS
     AND AGE            SERVED 2       BY DIRECTOR       DURING PAST FIVE YEARS                     HELD BY DIRECTOR 4
- ----------------     ------------   ----------------     ----------------------                    --------------------
                                                                                         
INTERESTED DIRECTORS 3:
- ----------------------
MARIO J. GABELLI       Since 1993          24       Chairman of the Board and Chief Executive      Director of Morgan
Director and                                        Officer of GAMCO Investors, Inc. and           Group Holdings, Inc.
Chief Investment Officer                            Chief Investment Officer - Value Portfolios    (transportation
Age: 64                                             of Gabelli Funds, LLC and GAMCO Asset          services); Chairman of
                                                    Management Inc.; Director/Trustee or Chief     the Board of Lynch
                                                    Investment Officer of other registered         Interactive Corporation
                                                    investment companies in the Gabelli Funds      (multimedia and
                                                    complex; Chairman and Chief Executive          communication services
                                                    Officer of GGCP, Inc.                          company)

JOHN D. GABELLI        Since 1993          10       Senior Vice President of Gabelli &             Director of GAMCO
Director                                            Company, Inc.                                  Investors, Inc.
Age: 62

INDEPENDENT DIRECTORS 5:
- -----------------------
E. VAL CERUTTI         Since 2001           7       Chief Executive Officer of Cerutti             Director of The LGL Group,
Director                                            Consultants, Inc.; Adviser to Iona             Inc. (diversified
Age: 67                                             College Hagan School of Business               manufacturing)

ANTHONY J. COLAVITA    Since 1993          34       Partner in the law firm of                        --
Director                                            Anthony J. Colavita, P.C.
Age: 71

ARTHUR V. FERRARA      Since 2001           7       Former Chairman of the Board and Chief         Director of the Guardian
Director                                            Executive Officer of The Guardian Life         sponsored mutual funds
Age: 76                                             Insurance Company of America
                                                    (1993-1995)

WERNER J. ROEDER, MD   Since 1993          23       Medical Director of Lawrence                      --
Director                                            Hospital and practicing private physician
Age: 66

ANTHONIE C. VAN EKRIS  Since 1993          17       Chairman of BALMAC International, Inc.            --
Director                                            (commodities and futures trading)
Age: 72

SALVATORE J. ZIZZA     Since 2004          25       Chairman of Hallmark Electrical Supplies       Director of Hollis-Eden
Director                                            Corp. (distribution of electrical              Pharmaceuticals (biotechnology);
Age: 61                                             supplies)                                      Director of Earl Scheib, Inc.
                                                                                                   (automotive services)


                                       19


THE GAMCO GLOBAL GROWTH FUND
ADDITIONAL FUND INFORMATION (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------


                     TERM OF OFFICE
NAME, POSITION(S)     AND LENGTH OF
    ADDRESS 1              TIME                         PRINCIPAL OCCUPATION(S)
     AND AGE             SERVED 2                       DURING PAST FIVE YEARS
- -----------------     ------------                      ----------------------
                                          
OFFICERS:
- --------
BRUCE N. ALPERT        Since 2003               Executive Vice President and Chief Operating Officer of Gabelli Funds, LLC
President                                       since 1988 and an officer of all of the registered investment companies
Age: 55                                         in the Gabelli Funds complex. Director and President of Gabelli Advisers, Inc.
                                                since 1998

JAMES E. MCKEE         Since 1995               Vice President, General Counsel and Secretary of GAMCO Investors, Inc.
Secretary                                       since 1999 and GAMCO Asset Management Inc. since 1993; Secretary
Age: 43                                         of all of the registered investment companies in the Gabelli Funds complex

AGNES MULLADY          Since 2006               Treasurer of all of the registered investment companies in the Gabelli Funds
Treasurer                                       complex; Senior Vice President of U.S. Trust Company, N.A. and Treasurer
Age: 48                                         and Chief Financial Officer of Excelsior Funds from 2004 through 2005;
                                                Chief Financial Officer of AMIC Distribution Partners from 2002 through 2004;
                                                Controller of Reserve Management Corporation and Reserve Partners, Inc. and
                                                Treasurer of Reserve Funds from 2000 through 2002

PETER D. GOLDSTEIN     Since 2004               Director of Regulatory Affairs at GAMCO Investors, Inc. since 2004; Chief
Chief Compliance Officer                        Compliance Officer of all of the registered investment companies in the
Age: 53                                         Gabelli Funds complex; Vice President of Goldman Sachs Asset Management
                                                from 2000 through 2004

- -----------------
 1 Address: One Corporate Center, Rye, NY 10580-1422, unless otherwise noted.
 2 Each Director  will hold office for an indefinite  term until the earliest of
   (i) the next  meeting of  shareholders,  if any,  called  for the  purpose of
   considering  the  election  or  re-election  of such  Director  and until the
   election and  qualification of his or her successor,  if any, elected at such
   meeting,  or (ii) the date a Director  resigns or  retires,  or a Director is
   removed by the Board of Directors or  shareholders,  in  accordance  with the
   Corporation's  By-Laws and Articles of Incorporation.  Each officer will hold
   office for an indefinite  term until the date he or she resigns or retires or
   until his or her successor is elected and qualified.
 3 "Interested  person" of the Corporation as defined in the Investment  Company
   Act of 1940, as amended (the "1940 Act"). Messrs. Gabelli are each considered
   an "interested  person" because of their  affiliation with Gabelli Funds, LLC
   which acts as the Corporation's investment adviser. Mario J. Gabelli and John
   D. Gabelli are brothers.
 4 This column includes only  directorships  of companies  required to report to
   the SEC under the  Securities  Exchange Act of 1934, as amended (i.e.  public
   companies) or other investment companies registered under the 1940 Act.
 5 Directors  who  are  not  interested  persons  are  considered  "Independent"
   Directors.

- --------------------------------------------------------------------------------
                   2006 TAX NOTICE TO SHAREHOLDERS (Unaudited)

   For the fiscal year ended  December 31, 2006,  the Fund paid to  shareholders
   ordinary  income  dividends  (comprised of net  investment  income)  totaling
   $0.062 and $0.063 per share for Class AAA and Class A, respectively.  For the
   fiscal year ended December 31, 2006, 43.03% of the distribution qualifies for
   the dividend received  deduction  available to corporations,  and 100% of the
   ordinary income distribution was qualified dividend income.
- --------------------------------------------------------------------------------

                                       20

- --------------------------------------------------------------------------------
     GABELLI FUNDS AND YOUR PERSONAL PRIVACY
================================================================================

     WHO ARE WE?
     The  Gabelli/GAMCO and Westwood Funds are investment  companies  registered
     with the Securities and Exchange  Commission  under the Investment  Company
     Act of 1940.  We are managed by Gabelli  Funds,  LLC and Gabelli  Advisers,
     Inc., which are affiliated with GAMCO Investors, Inc. GAMCO Investors, Inc.
     is a publicly held company that has  subsidiaries  that provide  investment
     advisory or brokerage services for a variety of clients.

     WHAT KIND OF NON-PUBLIC INFORMATION DO WE COLLECT ABOUT YOU IF YOU BECOME A
     SHAREHOLDER?
     If you apply to open an  account  directly  with us,  you will be giving us
     some non-public  information about yourself.  The non-public information we
     collect about you is:

     o  INFORMATION  YOU GIVE US ON YOUR  APPLICATION  FORM.  This could include
        your name,  address,  telephone  number,  social security  number,  bank
        account number, and other information.

     o  INFORMATION  ABOUT YOUR  TRANSACTIONS WITH US, ANY TRANSACTIONS WITH OUR
        AFFILIATES,  AND  TRANSACTIONS  WITH  THE  ENTITIES  WE HIRE TO  PROVIDE
        SERVICES TO YOU.  This would include  information  about the shares that
        you buy or redeem.  If we hire someone else to provide  services--like a
        transfer  agent--we will also have  information  about the  transactions
        that you conduct through them.

     WHAT INFORMATION DO WE DISCLOSE AND TO WHOM DO WE DISCLOSE IT?
     We do not disclose any non-public personal  information about our customers
     or former  customers  to anyone  other  than our  affiliates,  our  service
     providers who need to know such information,  and as otherwise permitted by
     law. If you want to find out what the law permits, you can read the privacy
     rules adopted by the Securities and Exchange Commission. They are in volume
     17 of the Code of Federal Regulations, Part 248. The Commission often posts
     information about its regulations on its web site, www.sec.gov.

     WHAT DO WE DO TO PROTECT YOUR PERSONAL INFORMATION?
     We restrict  access to  non-public  personal  information  about you to the
     people who need to know that  information  in order to provide  services to
     you or the Fund and to ensure that we are complying with the laws governing
     the securities business. We maintain physical,  electronic,  and procedural
     safeguards to keep your personal information confidential.
- --------------------------------------------------------------------------------


                             GABELLI FAMILY OF FUNDS

VALUE _______________________________________
GABELLI ASSET FUND
Seeks to invest primarily in a diversified portfolio of common stocks selling at
significant  discounts  to  their  private  market  value.  The  Fund's  primary
objective is growth of capital. (MULTICLASS)
                                        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

GABELLI BLUE CHIP VALUE FUND
Seeks long term growth of capital  through  investment  primarily  in the common
stocks of established  companies which are temporarily out of favor.  The fund's
objective  is to  identify a catalyst or sequence of events that will return the
company to a higher value.
(MULTICLASS)                              PORTFOLIO MANAGER: BARBARA MARCIN, CFA

WESTWOOD EQUITY FUND
Seeks to invest  primarily in the common stock of  well-seasoned  companies that
have  recently  reported  positive  earnings  surprises  and are  trading  below
Westwood's  proprietary  growth rate estimates.  The Fund's primary objective is
capital appreciation.
(MULTICLASS)                                   PORTFOLIO MANAGER: SUSAN M. BYRNE

FOCUSED VALUE _______________________________
GABELLI VALUE FUND
Seeks to invest in  securities  of  companies  believed to be  undervalued.  The
Fund's primary objective is long-term capital appreciation. (MULTICLASS)
                                        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

SMALL CAP VALUE _____________________________
GABELLI SMALL CAP FUND
Seeks  to  invest  primarily  in  common  stock  of  smaller  companies  (market
capitalizations  at the time of investment of $2 billion  or less)  believed  to
have rapid revenue and earnings growth potential. The  Fund's primary  objective
is capital appreciation.
(MULTICLASS)                            PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

WESTWOOD SMALLCAP EQUITY FUND
Seeks to invest primarily in smaller  capitalization  equity securities - market
caps of $2.5 billion or less. The Fund's primary  objective is long-term capital
appreciation. (MULTICLASS)                                          TEAM MANAGED

GABELLI WOODLAND SMALL CAP VALUE FUND
Seeks to invest  primarily  in the common  stocks of smaller  companies  (market
capitalizations generally less than $3.0  billion) believed  to  be  undervalued
with shareholder oriented management teams that are employing strategies to grow
the company's value. The Fund's primary objective is capital appreciation.
(MULTICLASS)                          PORTFOLIO MANAGER: ELIZABETH M. LILLY, CFA

GROWTH ______________________________________
GAMCO GROWTH FUND
Seeks to invest  primarily in large cap stocks believed to have  favorable,  yet
undervalued,  prospects for earnings  growth.  The Fund's  primary  objective is
capital appreciation. (MULTICLASS)        PORTFOLIO MANAGER: HOWARD F. WARD, CFA

GAMCO INTERNATIONAL GROWTH FUND
Seeks to invest in the equity  securities  of  foreign  issuers  with  long-term
capital   appreciation    potential.    The   Fund   offers   investors   global
diversification. (MULTICLASS)                    PORTFOLIO MANAGER: CAESAR BRYAN

AGGRESSIVE GROWTH ___________________________
GAMCO GLOBAL GROWTH FUND
Seeks capital appreciation through a disciplined  investment program focusing on
the globalization and interactivity of the world's marketplace. The Fund invests
in  companies  at the  forefront  of  accelerated  growth.  The  Fund's  primary
objective is capital appreciation. (MULTICLASS)                     TEAM MANAGED

MICRO-CAP ___________________________________
WESTWOOD MIGHTY MITES(SM) FUND
Seeks to invest in micro-cap companies that have market  capitalizations of $300
million or less. The Fund's primary objective is long-term capital appreciation.
(MULTICLASS)                                                        TEAM MANAGED

EQUITY INCOME _______________________________
GABELLI EQUITY INCOME FUND
Seeks to invest primarily in equity securities with above market average yields.
The Fund pays monthly  dividends  and seeks a high level of total return with an
emphasis on income. (MULTICLASS)        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

WESTWOOD BALANCED FUND
Seeks to invest in a balanced and diversified portfolio of stocks and bonds. The
Fund's primary objective is both capital appreciation and current income.
(MULTICLASS)                            CO-PORTFOLIO MANAGERS: SUSAN M. BYRNE
                                                               MARK FREEMAN, CFA

WESTWOOD INCOME FUND
Seeks to  provide   a high level of  current income as well as long-term capital
appreciation  by  investing  in   income   producing  equity  and  fixed  income
securities. (MULTICLASS)                                            TEAM MANAGED

SPECIALTY EQUITY ____________________________
GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
Seeks to invest  principally in bonds and preferred stocks which are convertible
into  common  stock of  foreign  and  domestic  companies.  The  Fund's  primary
objective is total return  through a combination  of current  income and capital
appreciation. (MULTICLASS)                                          TEAM MANAGED

GAMCO GLOBAL OPPORTUNITY FUND
Seeks to invest in common stock of companies which have rapid growth in revenues
and  earnings  and  potential  for above  average  capital  appreciation  or are
undervalued. The Fund's primary objective is capital appreciation.
(MULTICLASS)                                                        TEAM MANAGED

SECTOR ______________________________________
GAMCO GLOBAL TELECOMMUNICATIONS FUND
Seeks to invest in telecommunications companies throughout the world - targeting
undervalued  companies with strong  earnings and cash flow dynamics.  The Fund's
primary objective is capital appreciation. (MULTICLASS)             TEAM MANAGED

GAMCO GOLD FUND
Seeks to invest in a global  portfolio of equity  securities  of gold mining and
related  companies.  The Fund's  objective  is long-term  capital  appreciation.
Investment in gold stocks is considered speculative and is affected by a variety
of world-wide economic, financial, and political factors. (MULTICLASS)
                                                 PORTFOLIO MANAGER: CAESAR BRYAN

GABELLI UTILITIES FUND
Seeks to provide a high level of total return  through a combination  of capital
appreciation and current income. (MULTICLASS)                       TEAM MANAGED

MERGER AND ARBITRAGE ________________________
GABELLI ABC FUND
Seeks to invest in securities with attractive  opportunities for appreciation or
investment  income.  The Fund's  primary  objective  is total  return in various
market conditions without excessive risk of capital loss.
(NO-LOAD)                               PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

CONTRARIAN___________________________________
GAMCO MATHERS FUND
Seeks  long-term  capital  appreciation  in various  market  conditions  without
excessive risk of capital loss. (NO-LOAD)
                                        PORTFOLIO MANAGER: HENRY VAN DER EB, CFA

COMSTOCK CAPITAL VALUE FUND
Seeks capital  appreciation and current income.  The Fund may use either long or
short positions to achieve its objective.
(MULTICLASS)                               PORTFOLIO MANAGER: MARTIN WEINER, CFA

COMSTOCK STRATEGY FUND
The Fund emphasizes investments in debt securities,  which maximize total return
in light of credit risk,  interest rate risk, and the risk  associated  with the
length of maturity of  debt instruments. (MULTICLASS)
                                           PORTFOLIO MANAGER: MARTIN WEINER, CFA

FIXED INCOME ________________________________
WESTWOOD INTERMEDIATE BOND FUND
Seeks to invest in a diversified portfolio of bonds with various maturities. The
Fund's primary objective is total return.
(MULTICLASS)                                PORTFOLIO MANAGER: MARK FREEMAN, CFA

CASH MANAGEMENT-MONEY MARKET ________________
GABELLI U.S. TREASURY MONEY MARKET FUND
Seeks to invest exclusively in short-term U.S. Treasury  securities.  The Fund's
primary  objective  is to  provide  high  current  income  consistent  with  the
preservation of principal and liquidity. (NO-LOAD)
                                             PORTFOLIO MANAGER: JUDITH A. RANERI

AN INVESTMENT IN THE ABOVE MONEY MARKET FUND  IS NEITHER  INSURED NOR GUARANTEED
BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY GOVERNMENT AGENCY.  ALTHOUGH
THE FUND SEEKS TO PRESERVE THE VALUE OF YOUR  INVESTMENT AT $1.00 PER SHARE,  IT
IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE FUND.

THE  FUNDS MAY  INVEST IN  FOREIGN SECURITIES WHICH INVOLVE RISKS NOT ORDINARILY
ASSOCIATED WITH INVESTMENTS IN DOMESTIC ISSUES,  INCLUDING CURRENCY FLUCTUATION,
ECONOMIC, AND POLITICAL RISKS.

TO RECEIVE A PROSPECTUS, CALL 800-GABELLI (422-3554). INVESTORS SHOULD CAREFULLY
  CONSIDER THE INVESTMENT OBJECTIVES, RISKS, CHARGES, AND EXPENSES OF THE FUND
           BEFORE INVESTING. THE PROSPECTUS CONTAINS MORE INFORMATION
   ABOUT THIS AND OTHER MATTERS AND SHOULD BE READ CAREFULLY BEFORE INVESTING.



                         GAMCO Global Series Funds, Inc.
                          THE GAMCO GLOBAL GROWTH FUND
                              One Corporate Center
                            Rye, New York 10580-1422
                                   800-GABELLI
                                  800-422-3554
                                FAX: 914-921-5118
                            WEBSITE: WWW.GABELLI.COM
                            E-MAIL: INFO@GABELLI.COM
                  Net Asset Value per share available daily by
                       calling 800-GABELLI after 6:00 P.M.

                               BOARD OF DIRECTORS

Mario J. Gabelli, CFA                                John D. Gabelli
CHAIRMAN AND CHIEF                                   SENIOR VICE PRESIDENT
EXECUTIVE OFFICER                                    GABELLI & COMPANY, INC.
GAMCO INVESTORS, INC.

E. Val Cerutti                                       Werner J. Roeder, MD
CHIEF EXECUTIVE OFFICER                              MEDICAL DIRECTOR
CERUTTI CONSULTANTS, INC.                            LAWRENCE HOSPITAL

Anthony J. Colavita                                  Anthonie C. van Ekris
ATTORNEY-AT-LAW                                      CHAIRMAN
ANTHONY J. COLAVITA, P.C.                            BALMAC INTERNATIONAL, INC.

Arthur V. Ferrara                                    Salvatore J.Zizza
FORMER CHAIRMAN AND                                  CHAIRMAN
CHIEF EXECUTIVE OFFICER                              HALLMARK ELECTRICAL
GUARDIAN LIFE INSURANCE                              SUPPLIES CORP.
COMPANY OF AMERICA

                                    OFFICERS

Bruce N. Alpert                                      James E. McKee
PRESIDENT                                            SECRETARY

Agnes Mullady                                        Peter D. Goldstein
TREASURER                                            CHIEF COMPLIANCE OFFICER

                                   DISTRIBUTOR
                             Gabelli & Company, Inc.

                  CUSTODIAN, TRANSFER AGENT, AND DIVIDEND AGENT
                       State Street Bank and Trust Company

                                  LEGAL COUNSEL
                    Skadden, Arps, Slate, Meagher & Flom LLP




- --------------------------------------------------------------------------------
This report is submitted for the general  information of the shareholders of The
GAMCO Global Growth Fund. It is not authorized  for  distribution to prospective
investors unless preceded or accompanied by an effective prospectus.
- --------------------------------------------------------------------------------

GAB442Q406SR





                                                                           GAMCO




                                                      THE
                                                      GAMCO
                                                      GLOBAL
                                                      GROWTH
                                                      FUND






                                                                   ANNUAL REPORT
                                                               DECEMBER 31, 2006




                        THE GAMCO GLOBAL OPPORTUNITY FUND

                                  ANNUAL REPORT
                                DECEMBER 31, 2006

TO OUR SHAREHOLDERS,

      The Sarbanes-Oxley Act requires a Fund's principal executive and financial
officers  to  certify  the  entire   contents  of  the  semi-annual  and  annual
shareholder  reports in a filing with the Securities and Exchange  Commission on
Form N-CSR. This certification  would cover the portfolio  manager's  commentary
and  subjective  opinions  if they are  attached  to or a part of the  financial
statements. Many of these comments and opinions would be difficult or impossible
to certify.

      Because we do not want our portfolio  managers to eliminate their opinions
and/or  restrict their  commentary to historical  facts, we have separated their
commentary from the financial  statements and investment portfolio and have sent
it to  you  separately.  Both  the  commentary  and  the  financial  statements,
including  the  portfolio  of  investments,  will be available on our website at
www.gabelli.com/funds.

      Enclosed are the audited financial statements and the investment portfolio
as of  December  31,  2006 with a  description  of  factors  that  affected  the
performance during the past year.

PERFORMANCE DISCUSSION (UNAUDITED)

      For the twelve months ending  December 31, 2006 the net asset value of the
Fund  (Class  AAA)  appreciated  by 14.54%  which  compares  with 18.15% for the
average Global Multi-Cap Growth Fund monitored by Lipper and 21.23% for the MSCI
AC World Free Index.

      Global  equity  markets  performed  well in 2006.  Merger and  acquisition
activity  has been  feverish  and helped  global  markets'  performance.  Europe
surpassed  the U.S.  (which  itself had the fourth  largest deal volume ever) in
2006 with deal volume of $1.43 trillion,  a rise of 39% from 2005. Gains made in
equity  investments  outside the United  States were  further  augmented  by the
weakness of the U.S. dollar relative to most foreign currencies. Contributors to
performance  were made by both  domestic and  international  holdings.  Domestic
investments  that  appreciated by more than 40% for the year included  Precision
Castparts  Corp.,  Telephone & Data Systems Inc.,  Lockheed  Martin  Corp.,  and
United States  Cellular  Corp. The top  performing  international  holdings were
Petrobras (+44.5%), Saipem (+42.6%), and Antofagasta Holdings (+35.8%).

                                                          Sincerely yours,

                                                          /s/ Bruce N. Alpert

                                                          Bruce N. Alpert
                                                          President

February 23, 2007

 

    COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT IN THE GAMCO GLOBAL
   OPPORTUNITY FUND CLASS AAA SHARES, THE LIPPER GLOBAL MULTI-CAP GROWTH FUND
                    AVERAGE, AND THE MSCI AC WORLD FREE INDEX

                                [GRAPH OMITTED]
                              PLOT POINTS FOLLOW:

                GAMCO Global
            Opportunity Fund    Lipper Global Multi Cap             MSCI AC
          (Class AAA Shares)        Growth Fund Average    World Free Index
5/11/98              $10,000                    $10,000             $10,000
12/31/98              11,010                      9,922              10,613
12/31/99              19,731                     13,502              13,459
12/31/00              17,069                     12,115              11,583
12/31/01              12,131                     10,011               9,740
12/31/02              10,738                      8,056               7,892
12/31/03              14,756                     10,641              10,624
12/31/04              16,823                     12,194              12,298
12/31/05              19,367                     13,608              13,696
12/31/06              22,183                     16,077              16,645

PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE RESULTS. The performance tables and
graph do not reflect the deduction of taxes that a shareholder would pay on fund
distributions or the redemption of fund shares.


COMPARATIVE RESULTS
- --------------------------------------------------------------------------------

              AVERAGE ANNUAL RETURNS THROUGH DECEMBER 31, 2006 (A)
              ----------------------------------------------------


                                                                                                             Since
                                                                                                           Inception
                                                       Quarter      1 Year       3 Year       5 Year       (5/11/98)
- --------------------------------------------------------------------------------------------------------------------
                                                                                              
  GAMCO GLOBAL OPPORTUNITY FUND CLASS AAA ............  8.92%       14.54%       14.56%        12.83%        9.66%
  MSCI AC World Free Index ...........................  9.16        21.53        16.14         11.31         6.06
  Lipper Global Multi-Cap Growth Fund Average ........  8.99        18.15        14.77          9.52         6.97
  Class A ............................................  8.92        14.54        14.57         12.88         9.66
                                                        2.65(b)      7.96(b)     12.33(b)      11.55(b)      8.92(b)
  Class B ............................................  8.70        13.69        13.71         12.03         9.09
                                                        3.70(c)      8.69(c)     12.93(c)      11.77(c)      9.09(c)
  Class C ............................................  8.72        13.75        14.19         12.78         9.62
                                                        7.72(d)     12.75(d)     14.19         12.78         9.62

(a)  RETURNS  REPRESENT PAST  PERFORMANCE  AND DO NOT GUARANTEE  FUTURE RESULTS.
     TOTAL RETURNS AND AVERAGE ANNUAL RETURNS REFLECT CHANGES IN SHARE PRICE AND
     REINVESTMENT OF DISTRIBUTIONS AND ARE NET OF EXPENSES.  INVESTMENT  RETURNS
     AND THE PRINCIPAL VALUE OF AN INVESTMENT  WILL  FLUCTUATE.  WHEN SHARES ARE
     REDEEMED,  THEY MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. CURRENT
     PERFORMANCE  MAY BE LOWER OR HIGHER THAN THE  PERFORMANCE  DATA  PRESENTED.
     PERFORMANCE  RETURNS  FOR  PERIODS  LESS THAN ONE YEAR ARE NOT  ANNUALIZED.
     VISIT  WWW.GABELLI.COM  FOR  PERFORMANCE  INFORMATION AS OF THE MOST RECENT
     MONTH END. INVESTORS SHOULD CAREFULLY  CONSIDER THE INVESTMENT  OBJECTIVES,
     RISKS,  CHARGES, AND EXPENSES OF THE FUND BEFORE INVESTING.  THE PROSPECTUS
     CONTAINS MORE  INFORMATION  ABOUT THIS AND OTHER MATTERS AND SHOULD BE READ
     CAREFULLY BEFORE INVESTING.  INVESTING IN FOREIGN SECURITIES INVOLVES RISKS
     NOT ORDINARILY  ASSOCIATED WITH INVESTMENTS IN DOMESTIC  ISSUES,  INCLUDING
     CURRENCY FLUCTUATION, ECONOMIC, AND POLITICAL RISKS.
     THE CLASS AAA SHARES' NET ASSET  VALUES ARE USED TO  CALCULATE  PERFORMANCE
     FOR THE PERIODS  PRIOR TO THE  ISSUANCE OF CLASS A SHARES,  CLASS B SHARES,
     AND CLASS C SHARES ON MARCH 12,  2000,  AUGUST 16,  2000,  AND NOVEMBER 23,
     2001, RESPECTIVELY. THE ACTUAL PERFORMANCE FOR THE CLASS B SHARES AND CLASS
     C SHARES WOULD HAVE BEEN LOWER FOR THE PERIODS STARTING PRIOR TO AUGUST 16,
     2000 AND NOVEMBER 23, 2001,  RESPECTIVELY,  DUE TO THE ADDITIONAL  EXPENSES
     ASSOCIATED WITH THESE CLASSES OF SHARES.  RETURNS WOULD HAVE BEEN LOWER HAD
     THE ADVISER NOT REIMBURSED  CERTAIN EXPENSES OF THE FUND. THE MSCI AC WORLD
     FREE INDEX IS AN UNMANAGED INDICATOR OF STOCK MARKET PERFORMANCE, WHILE THE
     LIPPER AVERAGE REFLECTS THE AVERAGE  PERFORMANCE OF MUTUAL FUNDS CLASSIFIED
     IN THIS  PARTICULAR  CATEGORY.  DIVIDENDS ARE  CONSIDERED  REINVESTED.  YOU
     CANNOT INVEST DIRECTLY IN AN INDEX.
(b)  INCLUDES THE EFFECT OF THE MAXIMUM  5.75% SALES CHARGE AT THE  BEGINNING OF
     THE PERIOD.
(c)  PERFORMANCE  RESULTS  INCLUDE THE  DEFERRED  SALES  CHARGES FOR THE CLASS B
     SHARES UPON  REDEMPTION  AT THE END OF THE QUARTER,  ONE YEAR,  THREE YEAR,
     FIVE  YEAR,  AND  SINCE  INCEPTION  PERIODS  OF 5%,  5%,  3%,  2%,  AND 0%,
     RESPECTIVELY,  OF THE FUND'S NAV AT THE TIME OF PURCHASE OR SALE, WHICHEVER
     IS LOWER. CLASS B SHARES ARE NOT AVAILABLE FOR NEW PURCHASES.
(d)  PERFORMANCE  RESULTS  INCLUDE THE  DEFERRED  SALES  CHARGES FOR THE CLASS C
     SHARES UPON REDEMPTION AT THE END OF THE QUARTER AND ONE YEAR PERIODS OF 1%
     OF THE FUND'S NAV AT THE TIME OF PURCHASE OR SALE, WHICHEVER IS LOWER.
- --------------------------------------------------------------------------------

                                       2


THE GAMCO GLOBAL OPPORTUNITY FUND
DISCLOSURE OF FUND EXPENSES (UNAUDITED)
For the Six Month Period from July 1, 2006 through December 31, 2006
                                                                   EXPENSE TABLE
- --------------------------------------------------------------------------------
We believe it is important for you to understand the impact of fees and expenses
regarding  your  investment.  All mutual  funds have  operating  expenses.  As a
shareholder  of a fund,  you  incur  ongoing  costs,  which  include  costs  for
portfolio  management,  administrative  services,  and shareholder reports (like
this one), among others.  Operating  expenses,  which are deducted from a fund's
gross income,  directly  reduce the investment  return of a fund.  When a fund's
expenses are expressed as a percentage of its average net assets, this figure is
known as the expense  ratio.  The  following  examples  are intended to help you
understand  the  ongoing  costs (in  dollars) of  investing  in your Fund and to
compare these costs with those of other mutual funds.  The examples are based on
an  investment  of $1,000 made at the beginning of the period shown and held for
the entire period.

The Expense Table below illustrates your Fund's costs in two ways:

ACTUAL FUND  RETURN:  This section  provides  information  about actual  account
values and actual expenses. You may use this section to help you to estimate the
actual  expenses that you paid over the period after any fee waivers and expense
reimbursements.  The "Ending  Account  Value"  shown is derived  from the Fund's
ACTUAL return during the past six months,  and the "Expenses Paid During Period"
shows the dollar  amount  that would have been paid by an  investor  who started
with $1,000 in the Fund. You may use this information,  together with the amount
you invested, to estimate the expenses that you paid over the period.

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

HYPOTHETICAL 5% RETURN:  This section provides  information  about  hypothetical
account  values and  hypothetical  expenses  based on the Fund's actual  expense
ratio. It assumes a hypothetical  annualized return of 5% before expenses during
the period shown. In this case - because the hypothetical return used is NOT the
Fund's  actual  return - the  results  do not apply to your  investment  and you
cannot use the  hypothetical  account  value and expense to estimate  the actual
ending  account  balance or expenses  you paid for the period.  This  example is
useful in making  comparisons  of 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 shareholder reports of 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 sales
charges (loads),  redemption fees, or exchange fees, if any, which are described
in the Prospectus. If these costs were applied to your account, your costs would
be higher.  Therefore, the 5% hypothetical return is useful in comparing ongoing
costs only,  and will not help you determine the relative  total costs of owning
different funds. The "Annualized  Expense Ratio"  represents the actual expenses
for the last six  months  and may be  different  from the  expense  ratio in the
Financial Highlights which is for the year ended December 31, 2006.

                 Beginning         Ending       Annualized     Expenses
               Account Value   Account Value      Expense    Paid During
                 07/01/06         12/31/06         Ratio        Period*
- --------------------------------------------------------------------------------
THE GAMCO GLOBAL OPPORTUNITY FUND
- --------------------------------------------------------------------------------
ACTUAL FUND RETURN
Class AAA       $1,000.00        $1,072.60         2.00%        $10.45
Class A         $1,000.00        $1,071.80         2.00%        $10.44
Class B         $1,000.00        $1,067.90         2.73%        $14.23
Class C         $1,000.00        $1,068.30         2.74%        $14.28

HYPOTHETICAL 5% RETURN
Class AAA       $1,000.00        $1,015.12         2.00%        $10.16
Class A         $1,000.00        $1,015.12         2.00%        $10.16
Class B         $1,000.00        $1,011.44         2.73%        $13.84
Class C         $1,000.00        $1,011.39         2.74%        $13.89

* Expenses  are equal to the Fund's  annualized  expense  ratio for the last six
  months multiplied by the average account value over the period,  multiplied by
  the number of days in the most recent fiscal half-year, then divided by 365.

                                       3


SUMMARY OF PORTFOLIO HOLDINGS (UNAUDITED)

The following table presents portfolio holdings as a percent of total net assets
as of December 31, 2006:

THE GAMCO GLOBAL OPPORTUNITY FUND

Health Care .......................................  13.1%
Metals and Mining .................................  12.7%
Financial Services ................................  12.1%
Energy and Utilities ..............................  10.8%
Consumer Products .................................   9.8%
Computer Software and Services ....................   4.2%
Food and Beverage .................................   3.9%
Diversified Industrial ............................   3.4%
Retail ............................................   3.4%
Aerospace .........................................   3.2%
Telecommunications ................................   3.0%
Building and Construction .........................   3.0%
Entertainment .....................................   3.0%
Hotels and Gaming .................................   2.7%
Aviation: Parts and Services ......................   2.4%
Broadcasting ......................................   2.4%
U.S. Government Obligations .......................   1.9%
Wireless Communications ...........................   1.3%
Agriculture .......................................   1.3%
Cable and Satellite ...............................   0.8%
Publishing ........................................   0.7%
Electronics .......................................   0.6%
Machinery .........................................   0.5%
Closed-End Funds ..................................   0.4%
Transportation ....................................   0.0%
Other Assets and Liabilities (Net) ................  (0.6)%
                                                    ------
                                                    100.0%
                                                    ======

THE FUND FILES A COMPLETE SCHEDULE OF PORTFOLIO HOLDINGS WITH THE SECURITIES AND
EXCHANGE  COMMISSION (THE "SEC") FOR THE FIRST AND THIRD QUARTERS OF EACH FISCAL
YEAR ON FORM N-Q,  THE LAST OF WHICH WAS FILED FOR THE QUARTER  ENDED  SEPTEMBER
30, 2006.  SHAREHOLDERS  MAY OBTAIN THIS  INFORMATION AT  WWW.GABELLI.COM  OR BY
CALLING THE FUND AT 800-GABELLI (800-422-3554). THE FUND'S FORM N-Q IS AVAILABLE
ON THE SEC'S WEBSITE AT  WWW.SEC.GOV  AND MAY ALSO BE REVIEWED AND COPIED AT THE
SEC'S PUBLIC REFERENCE ROOM IN WASHINGTON,  DC.  INFORMATION ON THE OPERATION OF
THE PUBLIC REFERENCE ROOM MAY BE OBTAINED BY CALLING 1-800-SEC-0330.

PROXY VOTING

The Fund files Form N-PX with its complete proxy voting record for the 12 months
ended June 30th,  no later than August 31st of each year. A  description  of the
Fund's  proxy  voting  policies,  procedures,  and how the  Fund  voted  proxies
relating to portfolio  securities is available without charge,  upon request, by
(i) calling 800-GABELLI (800-422-3554); (ii) writing to The Gabelli Funds at One
Corporate  Center,  Rye, NY  10580-1422;  or (iii) visiting the SEC's website at
www.sec.gov.


                                       4


THE GAMCO GLOBAL OPPORTUNITY FUND
SCHEDULE OF INVESTMENTS -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------
                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS -- 98.7%
              AEROSPACE -- 3.2%
       3,000  L-3 Communications
                Holdings Inc. ............... $    127,720   $    245,340
       5,500  Lockheed Martin Corp. .........      135,166        506,385
                                              ------------   ------------
                                                   262,886        751,725
                                              ------------   ------------
              AGRICULTURE -- 1.3%
      30,000  Agricore United ...............      206,693        309,994
                                              ------------   ------------
              AVIATION: PARTS AND SERVICES -- 2.4%
       7,400  Precision Castparts Corp. .....      109,705        579,272
                                              ------------   ------------
              BROADCASTING -- 2.4%
      20,000  Mediaset SpA ..................      195,380        237,344
       5,000  Modern Times Group AB, Cl. B+        176,195        328,662
                                              ------------   ------------
                                                   371,575        566,006
                                              ------------   ------------
              BUILDING AND CONSTRUCTION -- 3.0%
       4,125  CRH plc, Dublin ...............       47,794        171,741
      13,000  CRH plc, London ...............      172,929        541,931
                                              ------------   ------------
                                                   220,723        713,672
                                              ------------   ------------
              CABLE AND SATELLITE -- 0.8%
       7,000  Cablevision Systems Corp.,
                Cl. A+ ......................       67,535        199,360
                                              ------------   ------------
       UNITS
       -----
              CLOSED-END FUNDS -- 0.4%
       6,000  Mullen Group Income Fund ......      194,420         96,163
                                              ------------   ------------
      SHARES
      ------
              COMPUTER SOFTWARE AND SERVICES -- 4.2%
         700  Google Inc., Cl. A+ ...........      220,948        322,336
      11,500  Microsoft Corp. ...............      301,125        343,390
         100  NIWS Co. HQ Ltd. ..............      113,403         60,081
       5,000  Square Enix Co. Ltd. ..........      121,466        131,087
       5,000  Yahoo! Inc.+ ..................      169,373        127,700
                                              ------------   ------------
                                                   926,315        984,594
                                              ------------   ------------
              CONSUMER PRODUCTS -- 9.8%
       5,000  Altadis SA ....................      153,235        261,699
      10,000  Assa Abloy AB, Cl. B ..........      189,995        217,647
       4,000  Christian Dior SA .............      227,736        426,375
      11,000  Compagnie Financiere
                Richemont AG, Cl. A .........      231,884        640,952
       8,500  Escada AG+ ....................      207,340        335,489
       4,000  Procter & Gamble Co. ..........      221,128        257,080
       3,200  UST Inc. ......................      142,645        186,240
                                              ------------   ------------
                                                 1,373,963      2,325,482
                                              ------------   ------------
              DIVERSIFIED INDUSTRIAL -- 3.4%
       7,000  Bouygues SA ...................      252,231        449,356
       9,500  General Electric Co. ..........      320,183        353,495
                                              ------------   ------------
                                                   572,414        802,851
                                              ------------   ------------
              ELECTRONICS -- 0.6%
       4,400  Linear Technology Corp. .......      165,609        133,408
                                              ------------   ------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              ENERGY AND UTILITIES -- 10.8%
       5,000  Connecticut Water Service Inc.  $    110,239   $    113,750
       6,600  Imperial Oil Ltd. .............      222,619        242,968
      30,000  Kanto Natural Gas
                Development Co. Ltd. ........      153,608        197,891
       8,000  Mueller Water Products Inc.,
                Cl. A .......................      126,070        118,960
       3,500  Petroleo Brasileiro SA, ADR ...      105,807        360,465
      10,000  Saipem SpA ....................      210,831        260,577
       7,200  Schlumberger Ltd. .............      238,374        454,752
       3,000  Suncor Energy Inc. ............      101,766        236,730
      35,000  Tokai Carbon Co. Ltd. .........      152,714        248,813
       4,000  Transocean Inc.+ ..............      164,064        323,560
                                              ------------   ------------
                                                 1,586,092      2,558,466
                                              ------------   ------------
              ENTERTAINMENT -- 3.0%
      35,000  Publishing &
                Broadcasting Ltd. ...........      176,587        589,840
       5,000  Time Warner Inc. ..............       85,437        108,900
                                              ------------   ------------
                                                   262,024        698,740
                                              ------------   ------------
              FINANCIAL SERVICES -- 12.1%
      15,000  Bank of Ireland ...............       92,773        346,511
       7,000  Citigroup Inc. ................      270,158        389,900
       5,375  Julius Baer Holding Ltd. AG ...      380,982        591,978
       1,600  Legg Mason Inc. ...............      141,880        152,080
      10,000  Mediobanca SpA ................      201,520        236,156
      17,000  Nikko Cordial Corp. ...........      180,347        194,992
      20,000  The Shizuoka Bank Ltd. ........      203,072        198,479
       7,000  TSX Group Inc. ................      287,164        279,784
       8,000  UBS AG ........................      336,926        482,640
                                              ------------   ------------
                                                 2,094,822      2,872,520
                                              ------------   ------------
              FOOD AND BEVERAGE -- 3.9%
       8,000  ARIAKE JAPAN Co. Ltd. .........      188,030        156,296
      15,000  Cadbury Schweppes plc .........      141,899        160,505
       5,000  General Mills Inc. ............      248,004        288,000
       5,000  PepsiCo Inc. ..................      261,500        312,750
                                              ------------   ------------
                                                   839,433        917,551
                                              ------------   ------------
              HEALTH CARE -- 13.1%
       6,000  Cochlear Ltd. .................      246,988        274,693
       4,208  GlaxoSmithKline plc ...........      126,084        110,735
       6,000  Novartis AG ...................      232,122        345,917
       3,500  Roche Holding AG ..............      305,337        627,616
       4,691  Sanofi-Aventis, ADR ...........      162,121        216,583
       5,000  St. Jude Medical Inc.+ ........      192,663        182,800
       1,200  Straumann Holding AG ..........      254,333        290,521
       3,000  Synthes Inc. ..................      302,959        357,735
       4,200  Takeda Pharmaceutical
                Co. Ltd. ....................      263,783        288,341
       5,000  William Demant Holding A/S+ ...      235,806        405,396
                                              ------------   ------------
                                                 2,322,196      3,100,337
                                              ------------   ------------
                 See accompanying notes to financial statements.

                                       5

THE GAMCO GLOBAL OPPORTUNITY FUND
SCHEDULE OF INVESTMENTS (CONTINUED) -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------
                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS (Continued)
              HOTELS AND GAMING -- 2.7%
       7,000  Greek Organization of Football
                Prognostics SA .............. $    117,837   $    270,557
      10,000  InterContinental Hotels
                Group plc ...................      207,348        247,097
      15,000  Ladbrokes plc .................      121,994        122,839
                                              ------------   ------------
                                                   447,179        640,493
                                              ------------   ------------
              MACHINERY -- 0.5%
       4,500  CNH Global NV .................      129,912        122,850
                                              ------------   ------------
              METALS AND MINING -- 12.7%
      17,726  Andsberg Ltd.+ (a) ............        8,277         15,740
      73,630  Antofagasta plc ...............       88,099        733,806
      48,000  Gold Fields Ltd., ADR .........      208,304        906,240
      10,000  Harmony Gold
                Mining Co. Ltd.+ ............       56,555        158,557
      24,000  Harmony Gold
                Mining Co. Ltd., ADR+ .......      130,306        378,000
      15,000  Newmont Mining Corp. ..........      349,500        677,250
       3,500  Peabody Energy Corp. ..........      179,978        141,435
                                              ------------   ------------
                                                 1,021,019      3,011,028
                                              ------------   ------------
              PUBLISHING -- 0.7%
      40,000  Independent News &
                Media plc ...................       98,736        158,933
                                              ------------   ------------
              RETAIL -- 3.4%
       9,000  Matsumotokiyoshi Co. Ltd. .....      232,030        200,034
       6,300  Seven & I Holdings Co. Ltd. ...      218,236        195,874
       6,000  Walgreen Co. ..................      233,238        275,340
       2,700  Whole Foods Market Inc. .......      136,041        126,711
                                              ------------   ------------
                                                   819,545        797,959
                                              ------------   ------------
              TELECOMMUNICATIONS -- 3.0%
       3,000  Alltel Corp. ..................      128,045        181,440
      15,675  Sprint Nextel Corp. ...........      255,701        296,101
       2,300  Telephone & Data
                Systems Inc. ................       45,066        124,959
       2,300  Telephone & Data
                Systems Inc., Special .......       41,599        114,080
                                              ------------   ------------
                                                   470,411        716,580
                                              ------------   ------------
              TRANSPORTATION -- 0.0%
       2,941  Horizon North Logistics Inc.+         10,722          8,978
                                              ------------   ------------
              WIRELESS COMMUNICATIONS -- 1.3%
       4,500  United States Cellular Corp.+        254,809        313,155
                                              ------------   ------------
              TOTAL COMMON STOCKS ...........   14,828,738     23,380,117
                                              ------------   ------------

   PRINCIPAL                                                     MARKET
     AMOUNT                                       COST           VALUE
   ---------                                      ----           -------

              U.S. GOVERNMENT OBLIGATIONS -- 1.9%
    $451,000  U.S. Treasury Bill,
                4.968%++, 03/08/07 .......... $    447,119   $    447,120
                                              ------------   ------------
              TOTAL
                INVESTMENTS -- 100.6% ....... $ 15,275,857     23,827,237
                                              ============
              Other Assets and Liabilities (Net) -- (0.6)%       (151,841)
                                                             ------------
              NET ASSETS -- 100.0% .......................   $ 23,675,396
                                                             ============
- ----------------
 (a) Security  fair  valued  under  procedures   established  by  the  Board  of
     Directors.   The  procedures  may  include  reviewing  available  financial
     information  about  the  company  and  reviewing  valuation  of  comparable
     securities and other factors on a regular basis.  At December 31, 2006, the
     market  value of the fair valued  security  amounted to $15,740 or 0.07% of
     total net assets.
 +   Non-income producing security.
 ++  Represents annualized yield at date of purchase.
 ADR American Depository Receipt

                                        % OF
                                       MARKET       MARKET
GEOGRAPHIC DIVERSIFICATION              VALUE        VALUE
- --------------------------            --------     -------
North America ......................     38.9%  $ 9,273,939
Europe .............................     38.8     9,235,304
Japan ..............................      7.9     1,871,888
South Africa .......................      6.0     1,442,797
Latin America ......................      4.8     1,138,777
Asia/Pacific .......................      3.6       864,532
                                        -----   -----------
                                        100.0%  $23,827,237
                                        =====   ===========





                 See accompanying notes to financial statements.

                                       6

                        THE GAMCO GLOBAL OPPORTUNITY FUND

STATEMENT OF ASSETS AND LIABILITIES
DECEMBER 31, 2006
- --------------------------------------------------------------------------------
ASSETS:
  Investments, at value (cost $15,275,857) ...............    $23,827,237
  Dividends receivable ...................................         31,005
  Receivable for Fund shares sold ........................          8,606
  Prepaid expense ........................................          2,355
                                                              -----------
  TOTAL ASSETS ...........................................     23,869,203
                                                              -----------
LIABILITIES:
  Payable to custodian ...................................         85,305
  Payable for Fund shares redeemed .......................         27,161
  Payable for investment advisory fees ...................         23,875
  Payable for legal and audit fees .......................         21,434
  Payable for shareholder
    communications expenses ..............................         18,295
  Payable for distribution fees ..........................          5,060
  Other accrued expenses .................................         12,677
                                                              -----------
  TOTAL LIABILITIES ......................................        193,807
                                                              -----------
  NET ASSETS applicable to 1,299,227
    shares outstanding ...................................    $23,675,396
                                                              ===========
NET ASSETS CONSIST OF:
  Paid-in capital, each class at
    $0.001 par value .....................................    $21,190,123
  Accumulated distributions in excess of net
    investment income ....................................        (65,260)
  Accumulated net realized loss on investments
    and foreign currency transactions ....................     (6,001,471)
  Net unrealized appreciation on investments .............      8,551,380
  Net unrealized appreciation on foreign
    currency translations ................................            624
                                                              -----------
  NET ASSETS .............................................    $23,675,396
                                                              ===========
SHARES OF CAPITAL STOCK:
  CLASS AAA:
  Net Asset Value, offering and redemption price
    per share ($23,426,328 / 1,285,482 shares
    outstanding; 75,000,000 shares authorized) ...........         $18.22
                                                                   ======
  CLASS A:
  Net Asset Value and redemption price per share
    ($219,947 / 12,102 shares outstanding;
    50,000,000 shares authorized) ........................         $18.17
                                                                   ======
  Maximum offering price per share (NAV / .9425,
    based on maximum sales charge of 5.75%
    of the offering price) ...............................         $19.28
                                                                   ======
  CLASS B:
  Net Asset Value and offering price per share
    ($25,039 / 1,422 shares outstanding;
    25,000,000 shares authorized) ........................         $17.61(a)
                                                                   ======
  CLASS C:
  Net Asset Value and offering price per share
    ($4,082 / 221.3 shares outstanding;
    25,000,000 shares authorized) ........................         $18.45(a)
                                                                   ======
- --------------------
(a) Redemption price varies based on the length of time held.

STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 2006
- --------------------------------------------------------------------------------
INVESTMENT INCOME:
  Dividends (net of foreign taxes of $16,951) ............     $  352,762
  Interest ...............................................         10,854
                                                               ----------
  TOTAL INVESTMENT INCOME ................................        363,616
                                                               ----------
EXPENSES:
  Investment advisory fees ...............................        230,631
  Distribution fees - Class AAA ..........................         56,951
  Distribution fees - Class A ............................            605
  Distribution fees - Class B ............................            367
  Distribution fees - Class C ............................             39
  Shareholder communications expenses ....................         31,463
  Legal and audit fees ...................................         27,461
  Registration expenses ..................................         27,176
  Shareholder services fees ..............................         22,030
  Custodian fees .........................................         16,173
  Recovery of reimbursed expenses
    (see Note 3) .........................................         14,200
  Interest expense .......................................          4,831
  Directors' fees ........................................          2,518
  Miscellaneous expenses .................................         31,211
                                                               ----------
  TOTAL EXPENSES .........................................        465,656
  Less: Custodian fee credits ............................           (268)
                                                               ----------
  NET EXPENSES ...........................................        465,388
                                                               ----------
  NET INVESTMENT LOSS ....................................       (101,772)
                                                               ----------
NET REALIZED AND UNREALIZED GAIN (LOSS)
  ON INVESTMENTS AND FOREIGN CURRENCY:
  Net realized gain on investments .......................      1,181,626
  Net realized loss on foreign currency
    transactions .........................................           (755)
                                                               ----------
  Net realized gain on investments and
    foreign currency transactions ........................      1,180,871
                                                               ----------
  Net change in unrealized appreciation/
    depreciation on investments ..........................      1,985,198
  Net change in unrealized appreciation/
    depreciation on foreign currency
    translations .........................................          1,286
                                                               ----------
  Net change in unrealized appreciation/
    depreciation on investments and foreign
    currency translations ................................      1,986,484
                                                               ----------
  NET REALIZED AND UNREALIZED GAIN (LOSS)
    ON INVESTMENTS AND FOREIGN CURRENCY ..................      3,167,355
                                                               ----------
  NET INCREASE IN NET ASSETS RESULTING
    FROM OPERATIONS ......................................     $3,065,583
                                                               ==========

                 See accompanying notes to financial statements.

                                       7

                        THE GAMCO GLOBAL OPPORTUNITY FUND

STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------


                                                                                   YEAR ENDED           YEAR ENDED
                                                                                DECEMBER 31, 2006    DECEMBER 31, 2005
                                                                                -----------------    -----------------
OPERATIONS:
                                                                                                 
  Net investment income (loss) .................................................  $  (101,772)        $    19,418
  Net realized gain on investments and foreign currency transactions ...........    1,180,871             856,524
  Net change in unrealized appreciation/depreciation on investments and
    foreign currency translations ..............................................    1,986,484           2,088,178
                                                                                  -----------         -----------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS .........................    3,065,583           2,964,120
                                                                                  -----------         -----------
DISTRIBUTIONS TO SHAREHOLDERS:
  Net investment income
    Class AAA ..................................................................       (3,855)            (30,715)
    Class A ....................................................................         (124)               (552)
                                                                                  -----------         -----------
  TOTAL DISTRIBUTIONS TO SHAREHOLDERS ..........................................       (3,979)            (31,267)
                                                                                  -----------         -----------
CAPITAL SHARE TRANSACTIONS:
    Class AAA ..................................................................   (1,022,036)         (2,510,492)
    Class A ....................................................................      (57,936)            112,811
    Class B ....................................................................      (27,495)             (9,204)
    Class C ....................................................................           --               3,000
                                                                                  -----------         -----------
  NET DECREASE IN NET ASSETS FROM CAPITAL SHARE TRANSACTIONS ...................   (1,107,467)         (2,403,885)
                                                                                  -----------         -----------
  REDEMPTION FEES ..............................................................          499                 970
                                                                                  -----------         -----------
  NET INCREASE IN NET ASSETS ...................................................    1,954,636             529,938
NET ASSETS:
  Beginning of period ..........................................................   21,720,760          21,190,822
                                                                                  -----------         -----------
  End of period (including undistributed net investment income of
    $0 and $0, respectively) ...................................................  $23,675,396         $21,720,760
                                                                                  ===========         ===========


NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
1. ORGANIZATION.  The GAMCO Global Opportunity Fund (the "Fund"),  formerly, The
Gabelli  Global  Opportunity  Fund, a series of GAMCO Global Series Funds,  Inc.
(the "Corporation"),  formerly, Gabelli Global Series Funds, Inc., was organized
on July  16,  1993 as a  Maryland  corporation.  The  Fund is a  non-diversified
open-end  management  investment company registered under the Investment Company
Act of 1940,  as amended (the "1940 Act"),  and one of four  separately  managed
portfolios  (collectively,  the  "Portfolios")  of the  Corporation.  The Fund's
primary  objective  is  capital  appreciation.  The  Fund  commenced  investment
operations on May 11, 1998.

2. SIGNIFICANT  ACCOUNTING POLICIES.  The preparation of financial statements in
accordance with United States ("U.S.") generally accepted accounting  principles
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.  The  following  is a summary of  significant  accounting
policies followed by the Fund in the preparation of its financial statements.

SECURITY  VALUATION.  Portfolio  securities  listed or  traded  on a  nationally
recognized securities exchange or traded in the U.S. over-the-counter market for
which market quotations are readily available are valued at the last quoted sale
price or a market's  official  closing  price as of the close of business on the
day the  securities  are being  valued.  If there  were no sales  that day,  the
security is valued at the  average of the  closing  bid and asked  prices or, if
there were no asked  prices  quoted on that day,  then the security is valued at
the closing bid price on that day. If no bid or asked  prices are quoted on such
day,  the  security is valued at the most  recently  available  price or, if the
Board

                                       8

THE GAMCO GLOBAL OPPORTUNITY FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
of  Directors  (the  "Board") so  determines,  by such other method as the Board
shall  determine  in good  faith to reflect  its fair  market  value.  Portfolio
securities  traded on more than one national  securities  exchange or market are
valued according to the broadest and most  representative  market, as determined
by Gabelli Funds, LLC (the "Adviser").

Portfolio  securities  primarily traded on a foreign market are generally valued
at the preceding  closing values of such securities on the relevant market,  but
may be fair valued  pursuant to  procedures  established  by the Board if market
conditions change  significantly after the close of the foreign market but prior
to the  close of  business  on the day the  securities  are being  valued.  Debt
instruments  with  remaining  maturities  of 60 days or less that are not credit
impaired are valued at amortized cost,  unless the Board  determines such amount
does not reflect the securities' fair value, in which case these securities will
be fair valued as determined by the Board.  Debt  instruments  having a maturity
greater  than 60 days for which  market  quotations  are readily  available  are
valued at the average of the latest bid and asked prices. If there were no asked
prices  quoted on such day,  the security is valued using the closing bid price.
Futures contracts are valued at the closing  settlement price of the exchange or
board of trade on which the applicable contract is traded.

Securities and assets for which market  quotations are not readily available are
fair  valued as  determined  by the  Board.  Fair  valuation  methodologies  and
procedures may include, but are not limited to: analysis and review of available
financial and non-financial  information  about the company;  comparisons to the
valuation and changes in valuation of similar securities, including a comparison
of foreign  securities to the equivalent U.S.  dollar value American  Depository
Receipt ("ADR") securities at the close of the U.S. exchange;  and evaluation of
any other information that could be indicative of the value of the security.

In September 2006, the Financial  Accounting Standards Board (the "FASB") issued
Statement  of  Financial   Accounting   Standards   ("SFAS")   157,  Fair  Value
Measurements,  which  clarifies  the  definition  of  fair  value  and  requires
companies  to expand  their  disclosure  about the use of fair  value to measure
assets and  liabilities  in interim  and annual  periods  subsequent  to initial
recognition.  Adoption of SFAS 157  requires  the use of the price that would be
received  to sell  an  asset  or paid to  transfer  a  liability  in an  orderly
transaction  between market  participants at the  measurement  date. SFAS 157 is
effective  for  financial  statements  issued for fiscal years  beginning  after
November 15, 2007, and interim  periods within those fiscal years. At this time,
management is in the process of reviewing the  requirements  of SFAS 157 against
its current valuation policies to determine future applicability.

REPURCHASE  AGREEMENTS.  The Fund may  enter  into  repurchase  agreements  with
primary  government  securities dealers recognized by the Federal Reserve Board,
with  member  banks of the  Federal  Reserve  System,  or with other  brokers or
dealers that meet credit  guidelines  established by the Adviser and reviewed by
the Board.  Under the terms of a typical  repurchase  agreement,  the Fund takes
possession  of an  underlying  debt  obligation  subject to an obligation of the
seller to repurchase,  and the Fund to resell,  the obligation at an agreed-upon
price and time, thereby  determining the yield during the Fund's holding period.
The Fund will always receive and maintain  securities as collateral whose market
value, including accrued interest,  will be at least equal to 102% of the dollar
amount  invested by the Fund in each  agreement.  The Fund will make payment for
such  securities  only upon  physical  delivery  or upon  evidence of book entry
transfer of the collateral to the account of the  custodian.  To the extent that
any repurchase transaction exceeds one business day, the value of the collateral
is marked-to-market on a daily basis to maintain the adequacy of the collateral.
If the seller defaults and the value of the collateral declines or if bankruptcy
proceedings   are  commenced  with  respect  to  the  seller  of  the  security,
realization of the collateral by the Fund may be delayed or limited. At December
31, 2006, there were no open repurchase agreements.

                                       9


THE GAMCO GLOBAL OPPORTUNITY FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
SECURITIES SOLD SHORT.  The Fund may enter into short sale  transactions.  Short
selling involves selling  securities that may or may not be owned and, at times,
borrowing the same securities for delivery to the purchaser,  with an obligation
to replace such borrowed  securities at a later date. The proceeds received from
short sales are recorded as liabilities  and the Fund records an unrealized gain
or loss to the extent of the  difference  between the proceeds  received and the
value of an open short position on the day of determination.  The Fund records a
realized gain or loss when the short  position is closed out. By entering into a
short sale, the Fund bears the market risk of an unfavorable change in the price
of the security sold short.  Dividends on short sales are recorded as an expense
by the Fund on the  ex-dividend  date and  interest  expense is  recorded on the
accrual  basis.  The Fund did not hold any short  positions  as of December  31,
2006.

FORWARD  FOREIGN  EXCHANGE  CONTRACTS.  The Fund may engage in  forward  foreign
exchange contracts for hedging a specific transaction with respect to either the
currency in which the  transaction is denominated or another  currency as deemed
appropriate by the Adviser. Forward foreign exchange contracts are valued at the
forward  rate and are  marked-to-market  daily.  The  change in market  value is
included in  unrealized  appreciation/depreciation  on  investments  and foreign
currency translations.  When the contract is closed, the Fund records a realized
gain or loss equal to the  difference  between the value of the  contract at the
time it was opened and the value at the time it was closed.

The use of forward foreign exchange contracts does not eliminate fluctuations in
the underlying prices of the Fund's portfolio securities,  but it does establish
a rate of exchange that can be achieved in the future.  Although forward foreign
exchange  contracts  limit the risk of loss due to a decline in the value of the
hedged currency, they also limit any potential gain that might result should the
value of the currency increase. In addition,  the Fund could be exposed to risks
if the  counterparties  to the  contracts  are unable to meet the terms of their
contracts.  At December 31, 2006,  there were no open forward  foreign  exchange
contracts.

FOREIGN CURRENCY TRANSLATIONS.  The books and records of the Fund are maintained
in  U.S.  dollars.  Foreign  currencies,   investments,  and  other  assets  and
liabilities  are translated  into U.S.  dollars at the current  exchange  rates.
Purchases  and  sales  of  investment  securities,   income,  and  expenses  are
translated  at the exchange  rate  prevailing  on the  respective  dates of such
transactions.  Unrealized  gains and losses that result from  changes in foreign
exchange rates and/or changes in market prices of securities  have been included
in unrealized  appreciation/depreciation  on  investments  and foreign  currency
translations.  Net realized  foreign  currency  gains and losses  resulting from
changes in exchange  rates include  foreign  currency  gains and losses  between
trade date and settlement date on investment  securities  transactions,  foreign
currency  transactions,  and the difference  between the amounts of interest and
dividends  recorded on the books of the Fund and the amounts actually  received.
The  portion of foreign  currency  gains and losses  related to  fluctuation  in
exchange rates between the initial trade date and subsequent  sale trade date is
included in realized gain/(loss) on investments.

FOREIGN  SECURITIES.  The Fund  may  directly  purchase  securities  of  foreign
issuers.  Investing in securities of foreign issuers  involves special risks not
typically  associated  with investing in securities of U.S.  issuers.  The risks
include  possible  revaluation of currencies,  the ability to repatriate  funds,
less complete financial information about companies, and possible future adverse
political  and  economic  developments.  Moreover,  securities  of many  foreign
issuers and their markets may be less liquid and their prices more volatile than
those of securities of comparable U.S. issuers.

FOREIGN  TAXES.  The Fund may be subject to  foreign  taxes on income,  gains on
investments,  or currency  repatriation,  a portion of which may be recoverable.
The Fund will accrue such taxes and  recoveries  as  applicable,  based upon its
current interpretation of tax rules and regulations that exist in the markets in
which it invests.

                                       10

THE GAMCO GLOBAL OPPORTUNITY FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
SECURITIES  TRANSACTIONS  AND INVESTMENT  INCOME.  Securities  transactions  are
accounted  for on the  trade  date  with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization  of premium and  accretion  of discount) is recorded on the accrual
basis.  Premiums  and  discounts  on debt  securities  are  amortized  using the
effective  yield  to  maturity  method.  Dividend  income  is  recorded  on  the
ex-dividend date except for certain  dividends which are recorded as soon as the
Fund is informed of the dividend.

DETERMINATION   OF  NET  ASSET  VALUE  AND  CALCULATION  OF  EXPENSES.   Certain
administrative  expenses are common to, and allocated among,  various affiliated
funds.  Such allocations are made on the basis of each Fund's average net assets
or other criteria  directly  affecting the expenses as determined by the Adviser
pursuant to procedures established by the Board.

In calculating  the net asset value ("NAV") per share of each class,  investment
income, realized and unrealized gains and losses,  redemption fees, and expenses
other than class specific expenses,  are allocated daily to each class of shares
based upon the  proportion  of net assets of each class at the beginning of each
day. Distribution expenses are borne solely by the class incurring the expense.

CUSTODIAN FEE CREDITS AND INTEREST EXPENSE. When cash balances are maintained in
the  custody  account,  the Fund  receives  credits  which  are  used to  offset
custodian  fees.  The gross  expenses  paid under the  custody  arrangement  are
included in custodian fees in the Statement of Operations with the corresponding
expense offset, if any, shown as "custodian fee credits". When cash balances are
overdrawn, the Fund is charged an overdraft fee equal to 2.00% above the Federal
Funds rate on  outstanding  balances.  This  amount,  if any,  would be shown as
"interest expense" in the Statement of Operations.

DISTRIBUTIONS TO SHAREHOLDERS. Distributions to shareholders are recorded on the
ex-dividend date.  Distributions to shareholders are based on income and capital
gains as determined in accordance with Federal income tax regulations, which may
differ from income and capital gains as determined under U.S. generally accepted
accounting  principles.   These  differences  are  primarily  due  to  differing
treatments  of income and gains on various  investment  securities  and  foreign
currency  transactions  held by the  Fund,  timing  differences,  and  differing
characterizations  of  distributions  made by the Fund.  Distributions  from net
investment  income include net realized gains on foreign currency  transactions.
These book/tax  differences are either temporary or permanent in nature.  To the
extent these differences are permanent,  adjustments are made to the appropriate
capital   accounts   in  the   period   when  the   differences   arise.   These
reclassifications  have no impact on the NAV of the Fund.  For the  fiscal  year
ended  December 31, 2006,  reclassifications  were made to decrease  accumulated
distributions  in  excess  of net  investment  income by  $80,079,  to  decrease
accumulated net realized loss on investments and foreign  currency  transactions
by $754, with an offsetting adjustment to paid-in capital.

The tax character of  distributions  paid during the fiscal years ended December
31, 2006 and December 31, 2005 was $3,979 and $31,267, respectively, of ordinary
income.

PROVISION  FOR  INCOME  TAXES.  The Fund  intends  to  continue  to qualify as a
regulated  investment company under Subchapter M of the Internal Revenue Code of
1986, as amended (the  "Code").  It is the policy of the Fund to comply with the
requirements  of the Code  applicable to regulated  investment  companies and to
distribute  substantially  all of its net investment  company taxable income and
net capital gains. Therefore, no provision for Federal income taxes is required.

                                       11

THE GAMCO GLOBAL OPPORTUNITY FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
At December 31, 2006, the difference between book basis and tax basis unrealized
appreciation  was  primarily  due to  deferral of losses from wash sales for tax
purposes.

As of December 31, 2006, the components of  accumulated  earnings/(losses)  on a
tax basis were as follows:

          Net unrealized appreciation ........................   $ 8,551,976
          Capital loss carryforwards .........................    (6,001,443)
          Other temporary differences .............. .........       (65,260)
                                                                 -----------
          Total accumulated earnings .........................   $ 2,485,273
                                                                 ===========

At December 31, 2006,  the Fund has net capital loss  carryforwards  for Federal
income tax purposes of $6,001,443, which are available to reduce future required
distributions  of net  capital  gains to  shareholders.  $1,119,397  of the loss
carryforward is available  through 2009;  $1,904,804 is available  through 2010;
$1,776,091 is available  through 2011; and $1,201,151 is available through 2012.
For the fiscal year ended  December 31, 2006,  the Fund utilized net tax capital
loss carryforwards of $1,181,627.

The following  summarizes the tax cost of investments and the related unrealized
appreciation/(depreciation) at December 31, 2006:



                                                                  GROSS              GROSS
                                                               UNREALIZED         UNREALIZED       NET UNREALIZED
                                                  COST        APPRECIATION       DEPRECIATION       APPRECIATION
                                                  ----        ------------       ------------       ------------
                                                                                         
          Investments ......................  $15,275,885      $8,963,899         $(412,547)         $8,551,352


In July 2006, the FASB issued Interpretation No. 48, "Accounting for Uncertainty
in  Income  Taxes,   an   Interpretation   of  FASB  Statement  No.  109"  ("the
Interpretation").  The  Interpretation  establishes for all entities,  including
pass-through  entities  such as the Fund,  a  minimum  threshold  for  financial
statement  recognition  of the benefit of positions  taken in filing tax returns
(including  whether  an entity is  taxable in a  particular  jurisdiction),  and
requires certain expanded tax disclosures.  The Interpretation is required to be
implemented  for a calendar  year  open-end fund no later than its June 29, 2007
NAV, and is to be applied to all open tax years as of the date of effectiveness.
Management has begun to evaluate the  application of the  Interpretation  to the
Fund, and is not in a position at this time to estimate the  significance of its
impact, if any, on the Fund's financial statements.

3. INVESTMENT  ADVISORY AGREEMENT AND OTHER  TRANSACTIONS.  The Fund has entered
into an  investment  advisory  agreement  (the  "Advisory  Agreement")  with the
Adviser which provides that the Fund will pay the Adviser a fee,  computed daily
and paid monthly,  at the annual rate of 1.00% of the value of its average daily
net assets.  In accordance with the Advisory  Agreement,  the Adviser provides a
continuous   investment   program  for  the  Fund's   portfolio,   oversees  the
administration  of all aspects of the Fund's business and affairs,  and pays the
compensation  of all  Officers  and  Directors  of the Fund  who are  affiliated
persons of the Adviser.  Effective May 1, 2005,  the Adviser has agreed to waive
its  investment  advisory  fee and/or to  reimburse  expenses of the Fund to the
extent necessary to maintain the annualized total operating expenses of the Fund
(exclusive of brokerage, interest, taxes, and extraordinary expenses) at no more
than 2.00%, 2.00%, 2.75%, and 2.75% (1.50%, 1.50%, 2.25%, and 2.25% prior to May
1,  2005) of the value of the  Fund's  average  daily net  assets for Class AAA,
Class A, Class B, and Class C, respectively. Beginning January 1, 2005, the Fund
is obliged to repay the Adviser for a period of two fiscal years  following  the
fiscal year in which the Adviser reimbursed the Fund only to the extent that the
operating  expenses of the Fund fall below the applicable  expense  limitations.
The cumulative  amount which the Fund may repay the Adviser is $26,232.  For the
fiscal year ended December 31, 2006, the Fund repaid the Adviser $14,200.

If total net  assets of the  Corporation  are in  excess  of $100  million,  the
Corporation pays each Director that is not considered to be an affiliated person
an annual retainer of $3,000 plus $500 for each Board meeting  attended and they
are reimbursed for any out of pocket expenses incurred in attending meetings. If
total net assets of the

                                       12

THE GAMCO GLOBAL OPPORTUNITY FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
Corporation  are below  $100  million,  the  Corporation  pays each  Independent
Director an annual retainer of $1,500 plus $250 for each Board meeting  attended
and they are  reimbursed  for any out of pocket  expenses  incurred in attending
meetings.  All  Board  committee  members  receive  $500 per  meeting  attended.
Directors who are directors or employees of the Adviser or an affiliated company
receive no compensation or expense reimbursement from the Fund.

4.  DISTRIBUTION  PLAN.  The Fund's Board has adopted a  distribution  plan (the
"Plan")  for each class of shares  pursuant  to Rule  12b-1  under the 1940 Act.
Gabelli & Company,  Inc.  ("Gabelli &  Company"),  an  affiliate of the Adviser,
serves as  distributor  of the Fund.  Under the Class AAA, Class A, Class B, and
Class C Share  Plans,  payments  are  authorized  to Gabelli & Company at annual
rates of 0.25%, 0.25%, 1.00%, and 1.00%, respectively,  of the average daily net
assets of those classes,  the annual  limitations under each Plan. Such payments
are accrued daily and paid monthly.

5. PORTFOLIO SECURITIES. Purchases and proceeds from the sales of securities for
the fiscal year ended  December  31,  2006,  other than  short-term  securities,
aggregated $3,524,316 and $4,759,873, respectively.

6. TRANSACTIONS WITH AFFILIATES. During the fiscal year ended December 31, 2006,
the Fund paid brokerage commissions of $180 to Gabelli & Company.  Additionally,
Gabelli  &  Company  informed  the Fund that it  received  $330  from  investors
representing  commissions  (sales  charges and  underwriting  fees) on sales and
redemptions of Fund shares.

7. LINE OF CREDIT.  The Fund has access to an unsecured  line of credit of up to
$25,000,000  from the  custodian for temporary  borrowing  purposes.  Borrowings
under this  arrangement  bear  interest at 0.75% above the Federal Funds rate on
outstanding balances.  This amount, if any, would be shown as "interest expense"
in the Statement of Operations.  At December 31, 2006,  there were no borrowings
outstanding from the line of credit.

The  average  daily  amount of  borrowings  outstanding  from the line of credit
within the fiscal  year  ended  December  31,  2006 was  $42,323  with a related
weighted average interest rate of 6.04%. The maximum amount borrowed at any time
during the fiscal year ended December 31, 2006 was $1,315,000.

8. CAPITAL STOCK TRANSACTIONS.  The Fund currently offers four classes of shares
- - Class AAA Shares,  Class A Shares,  Class B Shares, and Class C Shares.  Class
AAA Shares are offered only to investors  who acquire them directly from Gabelli
& Company, or through selected  broker/dealers,  or the transfer agent without a
sales charge.  Class A Shares are subject to a maximum front-end sales charge of
5.75%. Class B Shares are subject to a contingent deferred sales charge ("CDSC")
upon redemption within six years of purchase and automatically  convert to Class
A Shares  approximately eight years after the original purchase.  The applicable
CDSC is equal to a  declining  percentage  of the lesser of the NAV per share at
the date of the  original  purchase or at the date of  redemption,  based on the
length of time  held.  Class C Shares  are  subject to a 1.00% CDSC for one year
after  purchase.  Class B Shares are available only through  exchange of Class B
Shares of other funds  distributed by Gabelli & Company.  The Board has approved
Class I Shares which have not been offered publicly.

The Fund imposes a redemption fee of 2.00% on Class AAA Shares,  Class A Shares,
Class B Shares,  and Class C Shares that are  redeemed or exchanged on or before
the seventh day after the date of a purchase.  (Prior to June 15, 2005, the Fund
imposed a redemption  fee on shares that were redeemed or exchanged on or before
the sixtieth day after the date of a purchase.)  The  redemption fee is deducted
from  the  proceeds  otherwise  payable  to the  redeeming  shareholders  and is
retained by the Fund. The redemption fees retained by the Fund during the fiscal
years ended  December 31, 2006 and December 31, 2005  amounted to $499 and $970,
respectively.

                                       13

THE GAMCO GLOBAL OPPORTUNITY FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
The redemption fee does not apply to shares purchased  through programs that the
Adviser  determined to have  appropriate  short-term  trading policies in place.
Additionally,  certain recordkeepers for qualified and non-qualified  retirement
plans that could not collect the redemption fee at the participant  level due to
systems  limitations  have  received an  extension to  implement  such  systems.

Transactions in shares of capital stock were as follows:


                                                              YEAR ENDED                        YEAR ENDED
                                                           DECEMBER 31, 2006                 DECEMBER 31, 2005
                                                     ----------------------------      ---------------------------
                                                        SHARES          AMOUNT            SHARES         AMOUNT
                                                     ----------      ------------      ----------     ------------
                                                               CLASS AAA                         CLASS AAA
                                                     ----------------------------      ---------------------------
                                                                                          
Shares sold .......................................     283,265      $  4,840,122         343,785     $  5,002,957
Shares issued upon reinvestment of distributions ..         206             3,759           1,830           29,087
Shares redeemed ...................................    (344,742)       (5,865,917)       (518,825)      (7,542,536)
                                                     ----------      ------------      ----------     ------------
  Net decrease ....................................     (61,271)     $ (1,022,036)       (173,210)    $ (2,510,492)
                                                     ==========      ============      ==========     ============
                                                                 CLASS A                          CLASS A
                                                     ----------------------------      ---------------------------
Shares sold .......................................       3,963      $     67,574          10,880     $    157,398
Shares issued upon reinvestment of distributions ..           5                97              35              547
Shares redeemed ...................................      (7,241)         (125,607)         (3,190)         (45,134)
                                                     ----------      ------------      ----------     ------------
  Net increase (decrease) .........................      (3,273)     $    (57,936)          7,725     $    112,811
                                                     ==========      ============      ==========     ============
                                                                 CLASS B                          CLASS B
                                                     ----------------------------      ---------------------------
Shares sold .......................................          --                --              36     $        500
Shares issued upon reinvestment of distributions ..          --                --              --               --
Shares redeemed ...................................      (1,701)     $    (27,495)           (727)          (9,704)
                                                     ----------      ------------      ----------     ------------
  Net decrease ....................................      (1,701)     $    (27,495)           (691)    $     (9,204)
                                                     ==========      ============      ==========     ============
                                                                 CLASS C                          CLASS C
                                                     ----------------------------      ---------------------------
Shares sold .......................................          --                --             211     $      3,000
Shares issued upon reinvestment of distributions ..          --                --              --               --
Shares redeemed ...................................          --                --              --               --
                                                     ----------      ------------      ----------     ------------
  Net increase ....................................          --                --             211     $      3,000
                                                     ==========      ============      ==========     ============

9.  INDEMNIFICATIONS.  The Fund enters into  contracts that contain a variety of
indemnifications.  The Fund's  maximum  exposure  under  these  arrangements  is
unknown.  However, the Fund has not had prior claims or losses pursuant to these
contracts  and expects the risk of loss to be remote.

10. OTHER MATTERS. The Adviser  and/or  affiliates  received  subpoenas from the
Attorney General of the State of New York and the SEC requesting  information on
mutual fund share  trading  practices  involving  certain  funds  managed by the
Adviser.  GAMCO  Investors,   Inc.  ("GAMCO"),  the  Adviser's  parent  company,
responded to these  requests for documents and  testimony.  In June 2006,  GAMCO
began discussions with the SEC regarding a possible resolution of their inquiry.
In February  2007,  the Adviser made an offer of  settlement to the staff of the
SEC for  communication  to the Commission for its  consideration to resolve this
matter.  This offer of settlement is subject to agreement regarding the specific
language of the SEC's administrative order and other settlement documents.  On a
separate matter, in September 2005, the Adviser was informed by the staff of the
SEC that the staff may recommend to the Commission that an administrative remedy
and a monetary penalty be sought from the Adviser in connection with the actions
of two of seven  closed-end  funds  managed by the  Adviser  relating to Section
19(a)  and Rule  19a-1 of the 1940  Act.  These  provisions  require  registered
investment  companies  to provide  written  statements  to  shareholders  when a
dividend is made from a source other than net investment  income.  While the two
closed-end funds sent annual statements and provided other materials  containing
this information, the funds did not send written statements to shareholders with
each  distribution in 2002 and 2003. The Adviser  believes that all of the funds
are now in  compliance.  The Adviser  believes  that these matters would have no
effect on the Fund or any material  adverse effect on the Adviser or its ability
to manage the Fund.
                                       14


THE GAMCO GLOBAL OPPORTUNITY FUND
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

Selected data for a share of capital stock outstanding throughout each period:


                                INCOME FROM INVESTMENT OPERATIONS           DISTRIBUTIONS
                             ---------------------------------------   --------------------------
                                               Net
              Net Asset         Net       Realized and      Total
  Period        Value,      Investment     Unrealized        from         Net
   Ended      Beginning       Income     Gain (Loss) on   Investment   Investment      Total
December 31   of Period     (Loss)(a)      Investments    Operations     Income     Distributions
- -----------   ---------      -------      -------------   ----------   ---------    -------------
                                                                    
CLASS AAA
  2006          $15.91       $(0.08)         $ 2.39         $ 2.31     $(0.00)(d)     $(0.00)(d)
  2005           13.84         0.01            2.08           2.09      (0.02)         (0.02)
  2004           12.18         0.03            1.68           1.71      (0.05)         (0.05)
  2003            8.87         0.00(d)         3.29           3.29      (0.01)         (0.01)
  2002           10.02         0.00(d)        (1.15)         (1.15)        --             --
CLASS A
  2006          $15.87       $(0.08)         $ 2.39         $ 2.31     $(0.01)        $(0.01)
  2005           13.81         0.01            2.09           2.10      (0.04)         (0.04)
  2004           12.16         0.03            1.67           1.70      (0.05)         (0.05)
  2003            8.86         0.00(d)         3.28           3.28      (0.01)         (0.01)
  2002            9.99         0.00(d)        (1.13)         (1.13)        --             --
CLASS B
  2006          $15.49       $(0.19)         $ 2.31         $ 2.12         --             --
  2005           13.56        (0.08)           2.01           1.93         --             --
  2004           12.00        (0.07)           1.66           1.59     $(0.03)        $(0.03)
  2003            8.80        (0.07)           3.24           3.17         --             --
  2002           10.00        (0.07)          (1.13)         (1.20)        --             --
CLASS C
  2006          $16.22       $(0.21)         $ 2.44         $ 2.23         --             --
  2005           14.17        (0.10)           2.15           2.05         --             --
  2004           12.39         0.07            1.71           1.78         --             --
  2003            9.00        (0.07)           3.43           3.36         --             --
  2002           10.11        (0.07)          (1.04)         (1.11)        --             --



                                                      RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA
                                             ----------------------------------------------------------------

                         Net Asset           Net Assets      Net       Operating      Operating
  Period                   Value,              End of    Investment    Expenses      Expenses Net   Portfolio
   Ended       Redemption  End of    Total     Period      Income       Before       of Reimburse-  Turnover
December 31      Fees(a)   Period   Return+  (in 000's)    (Loss)    Reimbursement     ment(b)(c)     Rate
- -----------    ---------- --------  -------  ----------    -------   --------------   ------------   --------
                                                                 
CLASS AAA
  2006           $0.00(d)  $18.22    14.5%     $23,426     (0.44)%       2.02%(e)        2.02%(f)       15%
  2005            0.00(d)   15.91    15.1       21,425      0.10         2.04            1.85(f)        26
  2004            0.00(d)   13.84    14.0       21,033      0.25         2.00            1.50           35
  2003            0.03      12.18    37.4       19,305      0.04         1.83            1.52           13
  2002              --       8.87   (11.5)      15,000     (0.05)        2.39            1.59            0
CLASS A
  2006           $0.00(d)  $18.17    14.5%     $   220     (0.45)%       2.02%(e)        2.02%(f)       15%
  2005            0.00(d)   15.87    15.2          244      0.05         2.06            1.87(f)        26
  2004            0.00(d)   13.81    14.0          106      0.26         2.00            1.50           35
  2003            0.03      12.16    37.4           67      0.04         1.83            1.52           13
  2002              --       8.86   (11.3)         36      (0.05)        2.39            1.59            0
CLASS B
  2006           $0.00(d)  $17.61    13.7%     $    25     (1.14)%       2.77%(e)        2.77%(f)       15%
  2005            0.00(d)   15.49    14.2           48     (0.60)        2.79            2.58(f)        26
  2004            0.00(d)   13.56    13.2           52     (0.53)        2.75            2.25           35
  2003            0.03      12.00    36.4           12     (0.71)        2.58            2.27           13
  2002              --       8.80   (12.0)          9      (0.80)        3.14            2.34            0
CLASS C
  2006           $0.00(d)  $18.45    13.8%     $     4     (1.20)%       2.77%(e)        2.77%(f)       15%
  2005            0.00(d)   16.22    14.5            4     (0.66)        2.79            2.68(f)        26
  2004            0.00(d)   14.17    14.4            0.1    0.58         2.75            2.25           35
  2003            0.03      12.39    37.7            0.1   (0.71)        2.58            2.27           13
  2002              --       9.00   (11.0)           0.1   (0.80)        3.14            2.34            0

- -----------------------
  + Total return  represents  aggregate  total return of a  hypothetical  $1,000
    investment  at the beginning of the period and sold at the end of the period
    including  reinvestment  of  distributions  and does not reflect  applicable
    sales charges.
(a) Per share data is calculated using the average shares outstanding method.
(b) The Fund incurred  interest  expense  during the fiscal years ended December
    31, 2004,  2003, and 2002. If interest  expense had not been  incurred,  the
    ratios of  operating  expenses to average net assets  would have been 1.50%,
    1.50%,  2.25%,  and  2.25%  for Class  AAA,  Class A,  Class B, and Class C,
    respectively for each year.
(c) The Fund incurred  interest  expense  during the fiscal years ended December
    31, 2006 and December 31, 2005. If interest  expense had not been  incurred,
    the ratios of operating expenses to average net assets would have been 2.00%
    and 1.84% (Class AAA), 2.00% and 1.86% (Class A), 2.75% and 2.57% (Class B),
    and 2.75% and 2.68% (Class C), respectively.
(d) Amount represents less than $0.005 per share.
(e) Under an expense  deferral  agreement with the Adviser,  the Fund repaid the
    Adviser $14,200 during 2006,  representing  previously  reimbursed  expenses
    from the Adviser.  During the fiscal year ended  December 31, 2006, had such
    payment not been made,  the  expense  ratios  would have been 1.95%,  1.95%,
    2.70%, and 2.70% for Class AAA, Class A, Class B, and Class C, respectively.
(f) The ratios do not include a reduction of expenses for  custodian fee credits
    on cash balances maintained with the custodian. Including such custodian fee
    credits,  the  expense  ratios for the fiscal year ended  December  31, 2005
    would have been 1.84%, 1.87%, 2.58%, and 2.68% for Class AAA, Class A, Class
    B, and Class C,  respectively.  For the fiscal year ended December 31, 2006,
    the effect of the custodian fee credits was minimal.


                 See accompanying notes to financial statements.

                                       15


THE GAMCO GLOBAL OPPORTUNITY FUND
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
- --------------------------------------------------------------------------------

To the Shareholders and Board of Directors of
GAMCO Global Series Funds, Inc.

We have audited the accompanying statement of assets and liabilities,  including
the schedule of investments,  of The GAMCO Global  Opportunity Fund (the "Fund")
(formerly The Gabelli Global  Opportunity Fund), a series of GAMCO Global Series
Funds,  Inc.,  (formerly  Gabelli Global Series Funds,  Inc.) as of December 31,
2006,  and the related  statement  of  operations  for the year then ended,  the
statements of changes in net assets for each of the two years in the period then
ended,  and the  financial  highlights  for each of the four years in the period
then  ended.  These  financial  statements  and  financial  highlights  are  the
responsibility  of the Fund's  management.  Our  responsibility is to express an
opinion on these  financial  statements  and financial  highlights  based on our
audits.  The  financial  highlights  for the year ended  December  31, 2002 were
audited by other  auditors  whose  report  dated  January 31, 2003  expressed an
unqualified opinion on those financial highlights.

We conducted our audits in accordance  with the standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements and financial highlights are free of material  misstatement.  We were
not engaged to perform an audit of the Fund's  internal  control over  financial
reporting.  Our audits included consideration of internal control over financial
reporting as a basis for designing audit  procedures that are appropriate in the
circumstances,  but  not  for  the  purpose  of  expressing  an  opinion  on the
effectiveness  of  the  Fund's  internal   control  over  financial   reporting.
Accordingly,  we express no such opinion. An audit also includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements and financial  highlights,  assessing the accounting  principles used
and  significant  estimates  made by  management,  and  evaluating  the  overall
financial  statement  presentation.  Our  procedures  included  confirmation  of
securities  owned as of December 31,  2006,  by  correspondence  with the Fund's
custodian.  We  believe  that our  audits  provide  a  reasonable  basis for our
opinion.

In our opinion,  the financial  statements and financial  highlights referred to
above present fairly, in all material  respects,  the financial  position of The
GAMCO Global  Opportunity Fund, a series of GAMCO Global Series Funds,  Inc., at
December 31, 2006, the results of its  operations  for the year then ended,  the
changes in its net assets  for each of the two years in the period  then  ended,
and the  financial  highlights  for each of the four  years in the  period  then
ended, in conformity with U.S. generally accepted accounting principles.

                                                           /s/ ERNST & YOUNG LLP
Philadelphia, Pennsylvania
February 16, 2007

                                       16



                        THE GAMCO GLOBAL OPPORTUNITY FUND

BOARD CONSIDERATION AND RE-APPROVAL OF INVESTMENT ADVISORY AGREEMENT (UNAUDITED)

During the six months ended  December  31,  2006,  the Board of Directors of the
Corporation  approved the continuation of the investment advisory agreement with
the Adviser  for the Fund on the basis of the  recommendation  by the  directors
(the "Independent Board Members") who are not "interested  persons" of the Fund.
The  following   paragraphs  summarize  the  material  information  and  factors
considered  by the  Independent  Board  Members  as  well as  their  conclusions
relative to such factors.

NATURE, EXTENT AND QUALITY OF SERVICES. The Independent Board Members considered
information  regarding the Fund's portfolio  managers,  the depth of the analyst
pool  available  to the  Adviser  and  the  portfolio  managers,  the  scope  of
supervisory,  administrative,  shareholder,  and other  services  supervised  or
provided  by the  Adviser,  and the  absence  of  significant  service  problems
reported to the Board.  The  Independent  Board  Members  noted the  experience,
length of service, and reputation of the Fund's portfolio managers.

INVESTMENT  PERFORMANCE.  The Independent  Board Members  reviewed the short and
medium-term  performance  of the Fund  against a peer group of global  multi-cap
core and multi-cap  growth funds,  noting the Fund's bottom quartile for the one
year period, middle of its peer group for performance for the three year period,
and top quartile performance for the five year period.

PROFITABILITY. The Independent Board Members reviewed summary data regarding the
lack  of  profitability  of  the  Fund  to the  Adviser  both  with  a pro  rata
administrative  charge  and  with  a  standalone   administrative   charge.  The
Independent  Board Members also noted that an  affiliated  broker of the Adviser
received distribution fees and minor amounts of sales commissions.

ECONOMIES OF SCALE. The Independent  Board Members  discussed the major elements
of the  Adviser's  cost  structure  and the  relationship  of those  elements to
potential  economies of scale and reviewed  rudimentary data suggesting that 20%
growth in the Fund  would not  produce  meaningful  economies  of scale that the
shareholders would not participate in.

SHARING OF ECONOMIES OF SCALE.  The  Independent  Board  Members  noted that the
investment  advisory  fee  schedule  for the Fund does not take into account any
potential  economies  of scale  that may  develop  or any  losses or  diminished
profitability to the Adviser in prior years.

SERVICE AND COST COMPARISONS. The Independent Board Members compared the expense
ratios of the investment advisory fee, other expenses, and total expenses of the
Fund to similar  expense  ratios of the peer group of global  multi-cap core and
multi-cap  growth  funds and noted  that the  Adviser's  advisory  fee  includes
substantially  all  administrative  services  of the Fund as well as  investment
advisory  services.  The Independent Board Members noted that the Fund's expense
ratios  after  waivers  were  moderately  higher  than,  and the Fund's size was
significantly  lower  than,  average  within this group and that the Adviser had
been waiving  substantial  portions of its fees in order to make the Fund a more
attractive  investment.  The  Independent  Board  Members  also  noted  that the
advisory fee structure before waivers was the same as that in effect for most of
the Gabelli/GAMCO  funds. The Independent Board Members were presented with, but
did not compare, the advisory fee to the fee for other types of accounts managed
by the Adviser.

CONCLUSIONS.  The  Independent  Board  Members  concluded  that the Fund enjoyed
highly experienced portfolio management services, good ancillary services, and a
mixed performance  record that was  understandable in relation to the disclosure
in the Fund's prospectus and periodic  shareholder reports as to its purpose and
the outlook of the  portfolio  managers.  The  Independent  Board  Members  also
concluded that the Fund's expense ratios were reasonable,  particularly in light
of the lack of  profitability  to the  Adviser of  managing  the Fund,  and that
economies  of scale  were  not a factor  in their  thinking  at this  time.  The
Independent Board Members did not view the potential  profitability of ancillary
services  as  material  to their  decision.  On the basis of the  foregoing  and
without assigning  particular weight to any single  conclusion,  the Independent
Board Members  determined to recommend  continuation of the investment  advisory
agreement to the full Board of Directors.

                                       17


THE GAMCO GLOBAL OPPORTUNITY FUND
ADDITIONAL FUND INFORMATION (UNAUDITED)
- --------------------------------------------------------------------------------

The business and affairs of the  Corporation  are managed under the direction of
the Corporation's  Board of Directors.  Information  pertaining to the Directors
and  officers  of the  Company  is set forth  below.  The  Fund's  Statement  of
Additional   Information  includes  additional   information  about  the  Fund's
Directors and is available, without charge, upon request, by calling 800-GABELLI
(800-422-3554)  or by  writing  to The  GAMCO  Global  Opportunity  Fund  at One
Corporate Center, Rye, NY 10580-1422.



                    TERM OF OFFICE     NUMBER OF
NAME, POSITION(S)    AND LENGTH OF   FUNDS IN FUND
    ADDRESS 1             TIME      COMPLEX OVERSEEN     PRINCIPAL OCCUPATION(S)                   OTHER DIRECTORSHIPS
     AND AGE            SERVED 2       BY DIRECTOR       DURING PAST FIVE YEARS                     HELD BY DIRECTOR 4
- ----------------     ------------   ----------------     ----------------------                    --------------------
                                                                                         
INTERESTED DIRECTORS 3:
- ----------------------
MARIO J. GABELLI       Since 1993          24       Chairman of the Board and Chief Executive      Director of Morgan Group
Director and                                        Officer of GAMCO Investors, Inc. and           Holdings, Inc.(transportation
Chief Investment Officer                            Chief Investment Officer - Value Portfolios    services); Chairman of the
Age: 64                                             of Gabelli Funds, LLC and GAMCO Asset          Board of Lynch Interactive
                                                    Management Inc.; Director/Trustee or Chief     Corporation (multimedia and
                                                    Investment Officer of other registered         communication services
                                                    investment companies in the Gabelli Funds      company)
                                                    complex; Chairman and Chief Executive
                                                    Officer of GGCP, Inc.

JOHN D. GABELLI        Since 1993          10       Senior Vice President of Gabelli &             Director of GAMCO
Director                                            Company, Inc.                                  Investors, Inc.
Age: 62

INDEPENDENT DIRECTORS 5:
- ------------------------
E. VAL CERUTTI         Since 2001           7       Chief Executive Officer of Cerutti             Director of The LGL Group,
Director                                            Consultants, Inc.; Adviser to Iona             Inc. (diversified
Age: 67                                             College Hagan School of Business               manufacturing)

ANTHONY J. COLAVITA    Since 1993          34       Partner in the law firm of                        --
Director                                            Anthony J. Colavita, P.C.
Age: 71

ARTHUR V. FERRARA      Since 2001           7       Former Chairman of the Board and Chief         Director of The Guardian
Director                                            Executive Officer of The Guardian Life         sponsored mutual funds
Age: 76                                             Insurance Company of America
                                                    (1993 - 1995)

WERNER J. ROEDER, MD   Since 1993          23       Medical Director of Lawrence                      --
Director                                            Hospital and practicing private physician
Age: 66

ANTHONIE C. VAN EKRIS  Since 1993          17       Chairman of BALMAC International, Inc.            --
Director                                            (commodities and futures trading)
Age: 72

SALVATORE J. ZIZZA     Since 2004          25       Chairman of Hallmark Electrical Supplies       Director of Hollis-Eden
Director                                            Corp. (distribution of electrical              Pharmaceuticals (biotechnology);
Age: 61                                             supplies)                                      Director of Earl Scheib, Inc.
                                                                                                   (automotive services)


                                       18


THE GAMCO GLOBAL OPPORTUNITY FUND
ADDITIONAL FUND INFORMATION (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------


                     TERM OF OFFICE
NAME, POSITION(S)     AND LENGTH OF
    ADDRESS 1              TIME                         PRINCIPAL OCCUPATION(S)
     AND AGE             SERVED 2                       DURING PAST FIVE YEARS
- -----------------     ------------                      ----------------------
                                          
OFFICERS:
- --------
BRUCE N. ALPERT        Since 2003               Executive Vice President and Chief Operating Officer of Gabelli Funds, LLC
President                                       since 1988 and an officer of all of the registered investment companies
Age: 55                                         in the Gabelli Funds complex. Director and President of Gabelli Advisers, Inc.
                                                since 1998

JAMES E. MCKEE         Since 1995               Vice President, General Counsel and Secretary of GAMCO Investors, Inc.
Secretary                                       since 1999 and GAMCO Asset Management Inc. since 1993; Secretary
Age: 43                                         of all of the registered investment companies in the Gabelli Funds complex

AGNES MULLADY          Since 2006               Treasurer of all of the registered investment companies in the Gabelli Funds
Treasurer                                       complex; Senior Vice President of U.S. Trust Company, N.A. and Treasurer
Age: 48                                         and Chief Financial Officer of Excelsior Funds from 2004 through 2005;
                                                Chief Financial Officer of AMIC Distribution Partners from 2002 through 2004;
                                                Controller of Reserve Management Corporation and Reserve Partners, Inc. and
                                                Treasurer of Reserve Funds from 2000 through 2002

PETER D. GOLDSTEIN     Since 2004               Director of Regulatory Affairs at GAMCO Investors, Inc. since 2004; Chief
Chief Compliance Officer                        Compliance Officer of all of the registered investment companies in the
Age: 53                                         Gabelli Funds complex; Vice President of Goldman Sachs Asset Management
                                                from 2000 through 2004

- -----------------
 1 Address: One Corporate Center, Rye, NY 10580-1422, unless otherwise noted.
 2 Each Director  will hold office for an indefinite  term until the earliest of
   (i) the next  meeting of  shareholders,  if any,  called  for the  purpose of
   considering  the  election  or  re-election  of such  Director  and until the
   election and  qualification of his or her successor,  if any, elected at such
   meeting,  or (ii) the date a Director  resigns or  retires,  or a Director is
   removed by the Board of Directors or  shareholders,  in  accordance  with the
   Corporation's  By-Laws and Articles of Incorporation.  Each officer will hold
   office for an indefinite  term until the date he or she resigns or retires or
   until his or her successor is elected and qualified.
 3 "Interested  person" of the Corporation as  defined in the Investment Company
   Act of  1940,  as  amended  (the  "1940  Act").  Messrs.  Gabelli  are   each
   considered an "interested  person" because of their affiliation with  Gabelli
   Funds,  LLC which acts  as the  Corporation's  investment  adviser.  Mario J.
   Gabelli and John D. Gabelli are brothers.
 4 This column includes only  directorships  of companies  required to report to
   the SEC under the  Securities  Exchange Act of 1934, as amended (i.e.  public
   companies) or other investment companies registered under the 1940 Act.
 5 Directors  who  are  not  interested  persons  are  considered  "Independent"
   Directors.
- --------------------------------------------------------------------------------


                   2006 TAX NOTICE TO SHAREHOLDERS (Unaudited)

  For the fiscal year ended December 31, 2006, the Fund paid to shareholders, an
  ordinary income dividend  (comprised of net investment income) totaling $0.003
  and  $0.008  per share for Class AAA and Class A,  respectively.  For the year
  ended December 31, 2006, 0.00% of the distribution  qualifies for the dividend
  received deduction available to corporations,  and 100% of the ordinary income
  distribution was qualified dividend income.

  U.S. GOVERNMENT INCOME:
  The percentage of the ordinary  income dividend paid by the Fund during fiscal
  year 2006 which was derived  from U.S.  Treasury  securities  was 2.99%.  Such
  income is exempt from state and local tax in all states. However, many states,
  including New York and California,  allow a tax exemption for a portion of the
  income earned only if a mutual fund has invested at least 50% of its assets at
  the  end of  each  quarter  of the  Fund's  fiscal  year  in  U.S.  Government
  securities.  The  GAMCO  Global  Opportunity  Fund  did not meet  this  strict
  requirement  in 2006.  Due to the  diversity in state and local tax law, it is
  recommended that you consult your personal tax advisor as to the applicability
  of the information provided to your specific situation.
- --------------------------------------------------------------------------------

                                       19

                         GAMCO Global Series Funds, Inc.
                        THE GAMCO GLOBAL OPPORTUNITY FUND
                              One Corporate Center
                            Rye, New York 10580-1422
                                   800-GABELLI
                                  800-422-3554
                                FAX: 914-921-5118
                            WEBSITE: WWW.GABELLI.COM
                            E-MAIL: INFO@GABELLI.COM
              Net Asset Value per share available daily by calling
                           800-GABELLI after 6:00 P.M.

                               BOARD OF DIRECTORS

Mario J. Gabelli, CFA                             John D. Gabelli
CHAIRMAN AND CHIEF                                SENIOR VICE PRESIDENT
EXECUTIVE OFFICER                                 GABELLI & COMPANY, INC.
GAMCO INVESTORS, INC.

E. Val Cerutti                                    Werner J. Roeder, MD
CHIEF EXECUTIVE OFFICER                           MEDICAL DIRECTOR
CERUTTI CONSULTANTS, INC.                         LAWRENCE HOSPITAL

Anthony J. Colavita                               Anthonie C. van Ekris
ATTORNEY-AT-LAW                                   CHAIRMAN
ANTHONY J. COLAVITA, P.C.                         BALMAC INTERNATIONAL, INC.

Arthur V. Ferrara                                 Salvatore J.Zizza
FORMER CHAIRMAN AND                               CHAIRMAN
CHIEF EXECUTIVE OFFICER                           HALLMARK ELECTRICAL
GUARDIAN LIFE INSURANCE                           SUPPLIES CORP.
COMPANY OF AMERICA

                                    OFFICERS

Bruce N. Alpert                                  James E. McKee
PRESIDENT                                        SECRETARY

Agnes Mullady                                    Peter D. Goldstein
TREASURER                                        CHIEF COMPLIANCE OFFICER

                                   DISTRIBUTOR
                             Gabelli & Company, Inc.

                  CUSTODIAN, TRANSFER AGENT, AND DIVIDEND AGENT
                       State Street Bank and Trust Company

                                  LEGAL COUNSEL
                    Skadden, Arps, Slate, Meagher & Flom LLP






- --------------------------------------------------------------------------------
This report is submitted for the general  information of the shareholders of The
GAMCO  Global  Opportunity  Fund.  It is  not  authorized  for  distribution  to
prospective investors unless preceded or accompanied by an effective prospectus.
- --------------------------------------------------------------------------------

GAB403Q406SR


                                                                           GAMCO




                                                          THE
                                                          GAMCO
                                                          GLOBAL
                                                          OPPORTUNITY
                                                          FUND




                                                                   ANNUAL REPORT
                                                               DECEMBER 31, 2006







                    THE GAMCO GLOBAL TELECOMMUNICATIONS FUND

                                  ANNUAL REPORT
                                DECEMBER 31, 2006

TO OUR SHAREHOLDERS,

      The Sarbanes-Oxley Act requires a Fund's principal executive and financial
officers  to  certify  the  entire   contents  of  the  semi-annual  and  annual
shareholder  reports in a filing with the Securities and Exchange  Commission on
Form N-CSR. This certification  would cover the portfolio  manager's  commentary
and  subjective  opinions  if they are  attached  to or a part of the  financial
statements. Many of these comments and opinions would be difficult or impossible
to certify.

      Because we do not want our portfolio  managers to eliminate their opinions
and/or  restrict their  commentary to historical  facts, we have separated their
commentary from the financial  statements and investment portfolio and have sent
it to  you  separately.  Both  the  commentary  and  the  financial  statements,
including  the  portfolio  of  investments,  will be available on our website at
www.gabelli.com/funds.

      Enclosed are the audited financial statements and the investment portfolio
as of  December  31,  2006 with a  description  of  factors  that  affected  the
performance during the past year.

PERFORMANCE DISCUSSION (UNAUDITED)

      The GAMCO  Global  Telecommunications  Fund (Class  AAA) gained  28.91% in
2006,  underperforming the MSCI AC World Telecom Index that returned 34.36% for
the year.

      In analyzing the performance of The GAMCO Global  Telecommunications Fund,
a number of our largest emerging  markets  holdings are of note:  America Movil,
the wireless  operator in Mexico and Latin  America,  had a total 2006 return of
55.5%.  In Asia,  Philippine  Long  Distance  gained  58.8% for the  year.  It's
wireless  subscriber growth and margins continue to exceed  expectations and the
improved  balance  sheet  suggests the  potential  for  higher  cash  returns to
shareholders in 2007. Sistema Group of Russia, the holding company that controls
MTS, the largest  domestic  wireless  operator,  was ahead by 36.3% in 2006. The
Fund's  outperformance  was not,  however,  confined to emerging  market  names.
United States  Cellular  Corp.  rallied by an impressive  40.9% for 2006. In the
cable and satellite sub-sectors, strong Fund contributions came from Cablevision
and DIRECTV  Group.  The  Scandinavian  duo Elisa of Finland and  TeliaSonera of
Sweden were standout  performers among the larger holdings of European  national
operators in the Fund.


      The importance of industry consolidation and corporate activity in driving
both sector and The GAMCO Global  Telecommunications Fund's  performance in 2006
cannot,  we believe,  be  overstated.  M&A was a truly  global  phenomenon  with
AT&T/BellSouth in the U.S.,  Telefonica - O2 in Europe,  and more recently,  the
anticipated actions in the emerging markets of Brazil (Brasil Telecom).

      In Canada, the government's  decision to tax income trust distributions to
unit  holders  effectively  ended Bell Canada and TELUS's  plans to adopt income
trust  structures.  Although  the ruling  granted a  four-year  grace  period to
existing trusts, this was of little consolation to those companies that had been
planning the move. The move led to a fall in the price of our Canadian  holding,
TELUS.

                                                           Sincerely yours,

                                                           /s/ Bruce N. Alpert

                                                           Bruce N. Alpert
                                                           President

January 17, 2007

SUMMARY OF PORTFOLIO HOLDINGS (UNAUDITED)

The following table presents portfolio holdings as a percent of total net assets
as of December 31, 2006:

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND

Diversified Telecommunications
  Services ...................................   47.1%
Wireless Telecommunications
   Services ..................................   32.8%
Other ........................................   19.8%
U.S. Government Obligations ..................    0.1%
Other Assets and Liabilities (Net) ...........    0.2%
                                                ------
                                                100.0%
                                                ======

THE FUND FILES A COMPLETE SCHEDULE OF PORTFOLIO HOLDINGS WITH THE SECURITIES AND
EXCHANGE  COMMISSION (THE "SEC") FOR THE FIRST AND THIRD QUARTERS OF EACH FISCAL
YEAR ON FORM N-Q,  THE LAST OF WHICH WAS FILED FOR THE QUARTER  ENDED  SEPTEMBER
30, 2006.  SHAREHOLDERS  MAY OBTAIN THIS  INFORMATION AT  WWW.GABELLI.COM  OR BY
CALLING THE FUND AT 800-GABELLI (800-422-3554). THE FUND'S FORM N-Q IS AVAILABLE
ON THE SEC'S WEBSITE AT  WWW.SEC.GOV  AND MAY ALSO BE REVIEWED AND COPIED AT THE
SEC'S PUBLIC REFERENCE ROOM IN WASHINGTON,  DC.  INFORMATION ON THE OPERATION OF
THE PUBLIC REFERENCE ROOM MAY BE OBTAINED BY CALLING 1-800-SEC-0330.

PROXY VOTING

The Fund files Form N-PX with its complete proxy voting record for the 12 months
ended June 30th,  no later than August 31st of each year. A  description  of the
Fund's  proxy  voting  policies,  procedures,  and how the  Fund  voted  proxies
relating to portfolio  securities is available without charge,  upon request, by
(i) calling 800-GABELLI (800-422-3554); (ii) writing to The Gabelli Funds at One
Corporate  Center,  Rye, NY  10580-1422;  or (iii) visiting the SEC's website at
www.sec.gov.

                                       2


          COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT IN THE
       GAMCO GLOBAL TELECOMMUNICATIONS FUND CLASS AAA SHARES, THE MSCI AC
         WORLD TELECOMMUNICATION INDEX, AND THE MSCI AC WORLD FREE INDEX

                                [GRAPH OMITTED]
                              PLOT POINTS FOLLOW:

                     GAMCO Global             MSCI AC World
          Telecommunications Fund         Telecommunications             MSCI AC
                 Class AAA Shares                      Index    World Free Index
11/1/93                   $10,000                                       $10,000
12/31/93                   10,300                                         9,993
12/31/94                    9,921                                        10,496
12/31/95                   11,524                                        12,538
12/31/96                   12,560                                        14,193
12/31/97                   16,563                                        16,321
12/31/98                   22,319                                        19,907
12/31/99                   40,234                                        25,246
12/31/00                   30,546                                        21,727
12/31/01                   24,214                  $24,214               18,270
12/31/02                   17,051                   17,683               14,803
12/31/03                   24,337                   22,504               19,929
12/31/04                   30,025                   26,832               23,067
12/31/05                   30,878                   25,488               25,690
12/31/06                   39,804                   34,245               31,221

PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE RESULTS. The performance tables and
graph do not reflect the deduction of taxes that a shareholder would pay on fund
distributions or the redemption of fund shares.

COMPARATIVE RESULTS
- --------------------------------------------------------------------------------
                        AVERAGE ANNUAL RETURNS THROUGH DECEMBER 31, 2006 (A)
                        ----------------------------------------------------


                                                                                                               SINCE
                                                                                                             INCEPTION
                                                     Quarter    1 Year      3 Year      5 Year    10 Year    (11/1/93)
                                                     -------    ------      ------      ------    -------    ---------

                                                                                             
GAMCO GLOBAL TELECOMMUNICATIONS FUND
  CLASS AAA .......................................   12.37%     28.91%     17.82%     10.45%     12.23%     11.07%
MSCI AC World Telecommunication Index .............   14.42      34.36      15.04       7.18        N/A*       N/A*
MSCI AC World Free Index ..........................    9.16      21.53      16.14      11.31       8.20       9.03
Class A ...........................................   12.40      28.96      17.81      10.46      12.22      11.06
                                                       5.93(b)   21.54(b)   15.51(b)    9.16(b)   11.56(b)   10.56(b)
Class B ...........................................   12.19      28.00      16.95       9.63      11.69      10.66
                                                       7.19(c)   23.00(c)   16.22(c)    9.35(c)   11.69(c)   10.66(c)
Class C ...........................................   12.16      28.03      16.95       9.63      11.68      10.66
                                                      11.16(d)   27.03(d)   16.95       9.63      11.68      10.66

(a)  RETURNS  REPRESENT PAST  PERFORMANCE  AND DO NOT GUARANTEE  FUTURE RESULTS.
     TOTAL RETURNS AND AVERAGE ANNUAL RETURNS REFLECT CHANGES IN SHARE PRICE AND
     REINVESTMENT OF DISTRIBUTIONS AND ARE NET OF EXPENSES.  INVESTMENT  RETURNS
     AND  THE  PRINCIPAL  VALUE  OF  AN  INVESTMENT   WILL  FLUCTUATE.   CURRENT
     PERFORMANCE  MAY BE LOWER OR HIGHER THAN THE  PERFORMANCE  DATA  PRESENTED.
     WHEN  SHARES  ARE  REDEEMED,  THEY MAY BE  WORTH  MORE OR LESS  THAN  THEIR
     ORIGINAL COST.  PERFORMANCE  RETURNS FOR PERIODS LESS THAN ONE YEAR ARE NOT
     ANNUALIZED.  VISIT  WWW.GABELLI.COM  FOR PERFORMANCE  INFORMATION AS OF THE
     MOST RECENT MONTH END.  INVESTORS SHOULD CAREFULLY  CONSIDER THE INVESTMENT
     OBJECTIVES,  RISKS, CHARGES, AND EXPENSES OF THE FUND BEFORE INVESTING. THE
     PROSPECTUS  CONTAINS  MORE  INFORMATION  ABOUT THIS AND OTHER  MATTERS  AND
     SHOULD BE READ CAREFULLY BEFORE INVESTING.  THE CLASS AAA SHARES' NET ASSET
     VALUES  ARE USED TO  CALCULATE  PERFORMANCE  FOR THE  PERIODS  PRIOR TO THE
     ISSUANCE OF CLASS A SHARES, CLASS B SHARES, AND CLASS C SHARES ON MARCH 12,
     2000,  MARCH  13,  2000,  AND  JUNE  2,  2000,  RESPECTIVELY.   THE  ACTUAL
     PERFORMANCE FOR THE CLASS B SHARES AND CLASS C SHARES WOULD HAVE BEEN LOWER
     DUE TO THE  ADDITIONAL  EXPENSES  ASSOCIATED  WITH THESE CLASSES OF SHARES.
     INVESTING IN FOREIGN  SECURITIES  INVOLVES RISKS NOT ORDINARILY  ASSOCIATED
     WITH  INVESTMENTS  IN  DOMESTIC  ISSUES,  INCLUDING  CURRENCY  FLUCTUATION,
     ECONOMIC,  AND POLITICAL RISKS. THE MSCI AC WORLD  TELECOMMUNICATION  INDEX
     AND THE MSCI AC WORLD FREE INDEX ARE  UNMANAGED  INDICATORS OF GLOBAL STOCK
     MARKET PERFORMANCE. DIVIDENDS ARE CONSIDERED REINVESTED. YOU CANNOT  INVEST
     DIRECTLY IN AN INDEX.
(b)  INCLUDES THE EFFECT OF THE MAXIMUM  5.75% SALES CHARGE AT THE  BEGINNING OF
     THE PERIOD.
(c)  PERFORMANCE  RESULTS  INCLUDE THE  DEFERRED  SALES  CHARGES FOR THE CLASS B
     SHARES UPON  REDEMPTION  AT THE END OF THE QUARTER,  ONE YEAR,  THREE YEAR,
     FIVE YEAR, TEN YEAR, AND SINCE INCEPTION PERIODS OF 5%, 5%, 3%, 2%, 0%, AND
     0%,  RESPECTIVELY,  OF THE  FUND'S  NAV AT THE  TIME OF  PURCHASE  OR SALE,
     WHICHEVER IS LOWER. CLASS B SHARES ARE NOT AVAILABLE FOR NEW PURCHASES.
(d)  PERFORMANCE  RESULTS  INCLUDE THE  DEFERRED  SALES  CHARGES FOR THE CLASS C
     SHARES UPON  REDEMPTION AT THE END OF THE QUARTER AND ONE YEAR PERIOD OF 1%
     OF THE FUND'S NAV AT THE TIME OF PURCHASE OR SALE, WHICHEVER IS LOWER.
*    INFORMATION FOR THE MSCI AC WORLD INDEX  TELECOMMUNICATION  INDEX IS NOT
     AVAILABLE WITH DIVIDENDS PRIOR TO AUGUST 2001.
- --------------------------------------------------------------------------------

                                       3

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
DISCLOSURE OF FUND EXPENSES (UNAUDITED)

For the Six Month Period from July 1, 2006 through December 31, 2006
                                                                   EXPENSE TABLE
- --------------------------------------------------------------------------------
We believe it is important for you to understand the impact of fees and expenses
regarding  your  investment.  All mutual  funds have  operating  expenses.  As a
shareholder  of a fund,  you  incur  ongoing  costs,  which  include  costs  for
portfolio  management,  administrative  services,  and shareholder reports (like
this one), among others.  Operating  expenses,  which are deducted from a fund's
gross income,  directly  reduce the investment  return of a fund.  When a fund's
expenses are expressed as a percentage of its average net assets, this figure is
known as the expense  ratio.  The  following  examples  are intended to help you
understand  the  ongoing  costs (in  dollars) of  investing  in your Fund and to
compare these costs with those of other mutual funds.  The examples are based on
an  investment  of $1,000 made at the beginning of the period shown and held for
the entire period.

The Expense Table below illustrates your Fund's costs in two ways:

ACTUAL FUND  RETURN:  This section  provides  information  about actual  account
values and actual expenses. You may use this section to help you to estimate the
actual  expenses that you paid over the period after any fee waivers and expense
reimbursements.  The "Ending  Account  Value"  shown is derived  from the Fund's
ACTUAL return during the past six months,  and the "Expenses Paid During Period"
shows the dollar  amount  that would have been paid by an  investor  who started
with $1,000 in the Fund. You may use this information,  together with the amount
you invested, to estimate the expenses that you paid over the period.

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

HYPOTHETICAL 5% RETURN:  This section provides  information  about  hypothetical
account  values and  hypothetical  expenses  based on the Fund's actual  expense
ratio. It assumes a hypothetical  annualized return of 5% before expenses during
the period shown. In this case - because the hypothetical return used is NOT the
Fund's  actual  return - the  results  do not apply to your  investment  and you
cannot use the  hypothetical  account  value and expense to estimate  the actual
ending  account  balance or expenses  you paid for the period.  This  example is
useful in making  comparisons  of 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 shareholder reports of 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 sales
charges (loads),  redemption fees, or exchange fees, if any, which are described
in the Prospectus. If these costs were applied to your account, your costs would
be higher.  Therefore, the 5% hypothetical return is useful in comparing ongoing
costs only,  and will not help you determine the relative  total costs of owning
different funds. The "Annualized  Expense Ratio"  represents the actual expenses
for the last six  months  and may be  different  from the  expense  ratio in the
Financial Highlights which is for the year ended December 31, 2006.

                 Beginning         Ending       Annualized     Expenses
               Account Value   Account Value      Expense    Paid During
                 07/01/06         12/31/06         Ratio        Period*
- --------------------------------------------------------------------------------
THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
- --------------------------------------------------------------------------------
ACTUAL FUND RETURN
Class AAA       $1,000.00        $1,227.50         1.51%        $ 8.48
Class A         $1,000.00        $1,227.90         1.51%        $ 8.48
Class B         $1,000.00        $1,223.50         2.24%        $12.55
Class C         $1,000.00        $1,223.50         2.26%        $12.67

HYPOTHETICAL 5% RETURN
Class AAA       $1,000.00        $1,017.59         1.51%        $ 7.68
Class A         $1,000.00        $1,017.59         1.51%        $ 7.68
Class B         $1,000.00        $1,013.91         2.24%        $11.37
Class C         $1,000.00        $1,013.81         2.26%        $11.47

* Expenses  are equal to the Fund's  annualized  expense  ratio for the last six
  months multiplied by the average account value over the period,  multiplied by
  the number of days in the most recent fiscal half-year, then divided by 365.

                                       4

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
SCHEDULE OF INVESTMENTS -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS -- 99.7%
              DIVERSIFIED TELECOMMUNICATIONS SERVICES -- 47.1%
              ASIA/PACIFIC -- 4.1%
       1,500  Asia Satellite
                Telecommunications
                Holdings Ltd., ADR .......... $     22,103   $     27,450
     170,000  First Pacific Co. Ltd. ........       92,079         88,297
      20,000  First Pacific Co. Ltd., ADR ...       30,144         51,946
          10  Korea Thrunet Co. Ltd.+ (c) ...        5,250              0
      10,000  KT Corp., ADR .................      183,666        253,500
       2,000  Pakistan Telecommunications
                Co. Ltd., GDR (a) ...........      155,765        145,532
     100,000  PCCW Ltd. .....................       81,405         60,810
      72,000  Philippine Long Distance
                Telephone Co., ADR ..........    1,383,105      3,681,360
      18,360  PT Telekomunikasi
                Indonesia, ADR ..............      165,504        837,216
     874,000  Singapore
                Telecommunications Ltd. .....      701,513      1,869,092
      25,000  Telecom Corp. of New
                Zealand Ltd., ADR ...........      515,375        673,000
     350,000  Telekom Malaysia Berhad .......    1,547,135        967,262
       2,400  Telstra Corp. Ltd., ADR .......       47,304         39,312
       8,075  Thai Telephone & Telecom,
                GDR+ (a)(b) .................      100,542            646
   1,000,000  True Corp. Public Co. Ltd.+ ...      687,194        172,779
                                              ------------   ------------
                                                 5,718,084      8,868,202
                                              ------------   ------------
              EUROPE -- 21.9%
      39,000  BT Group plc, ADR .............    1,474,439      2,335,710
     300,000  Cable & Wireless plc ..........      544,359        926,615
       8,960  Colt Telecom Group SA+ ........       39,631         23,508
     260,000  Deutsche Telekom AG, ADR ......    3,009,522      4,732,000
     180,000  Elisa Oyj .....................    2,286,461      4,930,368
      38,000  France Telecom SA, ADR ........    1,021,948      1,052,600
      17,500  Golden Telecom Inc. ...........      183,065        819,700
       5,507  Hellenic Telecommunications
                Organization SA+ ............       86,065        165,453
      36,000  Hellenic Telecommunications
                Organization SA, ADR+ .......      218,769        545,400
      18,000  Hungarian Telephone &
                Cable Corp.+ ................      139,278        271,800
         500  Magyar Telekom
                Telecommunications plc,
                ADR+ ........................        9,650         13,975
       3,000  Maroc Telecom .................       31,797         46,611
      15,000  Metromedia International
                Group Inc.+ .................       59,576         22,050
      65,000  Neuf Cegetel+ .................    1,906,725      2,308,098
      20,000  Portugal Telecom SGPS SA ......      235,355        259,785
      68,000  Portugal Telecom SGPS
                SA, ADR .....................      277,645        879,920
      10,000  Rostelecom, ADR ...............       79,578        455,000

                                                                 MARKET
    SHARES/UNITS                                  COST           VALUE
   --------------                                 ----           -------

      57,000  Royal KPN NV
                Sponsored, ADR .............. $    472,195   $    812,820
      85,000  Sistema JSFC, GDR (a) .........    1,563,313      2,720,000
      98,000  Swisscom AG, ADR ..............    2,548,286      3,700,480
   2,150,000  Telecom Italia SpA ............    4,174,539      6,499,241
      27,000  Telecom Italia SpA, ADR .......      621,934        813,510
     100,000  Telefonica SA, ADR ............    2,634,654      6,375,000
       6,361  Telefonica SA, BDR ............      108,405        135,021
      46,604  Telekom Austria AG ............      347,582      1,248,843
     650,000  TeliaSonera AB ................    2,791,663      5,340,749
                                              ------------   ------------
                                                26,866,434     47,434,257
                                              ------------   ------------
              JAPAN -- 0.8%
         237  Nippon Telegraph &
                Telephone Corp. .............    1,207,105      1,167,027
      22,000  Nippon Telegraph &
                Telephone Corp., ADR ........      622,716        545,380
                                              ------------   ------------
                                                 1,829,821      1,712,407
                                              ------------   ------------
              LATIN AMERICA -- 5.2%
      33,250  Atlantic Tele-Network Inc. ....      112,178        974,225
      12,000  Brasil Telecom
                Participacoes SA, ADR .......      595,898        512,280
         952  Brasil Telecom SA .............            3             11
      44,448  Brasil Telecom SA, Pfd. .......          474            228
  17,415,054  Cable & Wireless
                Jamaica Ltd.+ ...............      406,745        262,427
     148,000  Compania de
                Telecomunicaciones de
                Chile SA, ADR ...............    2,049,285      1,188,440
      25,693  Tele Norte Leste
                Participacoes SA, ADR .......      357,296        383,340
     210,000  Telecom Argentina SA,
                Cl. B, ADR+ .................      869,186      4,202,100
      57,700  Telefonica de Argentina
                SA, ADR+ ....................      376,367      1,042,639
      92,000  Telefonos de Mexico
                SAB de CV, Cl. L, ADR .......      673,142      2,599,920
       3,355  Telemar Norte Leste SA ........      148,531         76,318
                                              ------------   ------------
                                                 5,589,105     11,241,928
                                              ------------   ------------
              NORTH AMERICA -- 15.1%
      80,000  AT&T Inc. .....................    2,815,704      2,860,000
     115,000  BCE Inc. ......................    2,642,934      3,105,000
      47,836  Bell Aliant Regional
                Communications
                Income Fund .................      882,832      1,105,911
      39,372  Bell Aliant Regional
                Communications
                Income Fund+ (a) ............      726,616        910,269
      65,000  BellSouth Corp. ...............    1,974,279      3,062,150
      13,000  CenturyTel Inc. ...............      396,150        567,580
     300,000  Cincinnati Bell Inc.+ .........    2,016,086      1,371,000

                 See accompanying notes to financial statements.

                                       5

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
SCHEDULE OF INVESTMENTS (CONTINUED) -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS (Continued)
              DIVERSIFIED TELECOMMUNICATIONS SERVICES (Continued)
              NORTH AMERICA (CONTINUED)
      50,000  Citizens Communications
                Co. ......................... $    563,742   $    718,500
      49,000  Commonwealth Telephone
                Enterprises Inc. ............    1,479,530      2,051,140
       6,000  Covad Communications
                Group Inc.+ .................       11,761          8,280
      67,060  D&E Communications Inc. .......      841,107        848,309
      10,000  E.Spire Communications
                Inc.+ .......................       50,000              6
       3,230  EarthLink Inc.+ ...............       45,250         22,933
      22,500  Embarq Corp. ..................      593,482      1,182,600
      80,000  General Communication
                Inc., Cl. A+ ................      376,995      1,258,400
       5,000  Manitoba Telecom
                Services Inc. ...............      168,270        198,945
      22,422  McLeodUSA Inc., Cl. A+ ........       78,431            110
      20,000  NorthPoint Communications
                Group Inc.+ .................       11,250             30
       4,756  Pegasus Communications
                Corp., Cl. A+ ...............       23,757         10,035
     120,000  Price Communications
                Corp. .......................    1,858,269      2,526,000
     320,000  Qwest Communications
                International Inc.+ .........    1,176,740      2,678,400
      11,000  Shenandoah
                Telecommunications Co. ......      138,825        517,110
      45,000  TELUS Corp. ...................      873,965      2,065,258
       1,943  TELUS Corp., ADR ..............       34,622         86,691
      33,057  TELUS Corp., Non-Voting .......      827,048      1,474,901
       6,000  Time Warner Telecom Inc.,
                Cl. A+ ......................        4,800        119,580
      85,000  Verizon Communications
                Inc. ........................    3,121,509      3,165,400
      43,941  Windstream Corp. ..............      314,821        624,841
                                              ------------   ------------
                                                24,048,775     32,539,379
                                              ------------   ------------
              TOTAL DIVERSIFIED
                TELECOMMUNICATIONS
                SERVICES ....................   64,052,219    101,796,173
                                              ------------   ------------
              OTHER -- 19.8%
              ASIA/PACIFIC -- 0.3%
      38,000  ABC Communications
                Holdings Ltd. ...............       19,234          2,150
      19,065  Austar United
                Communications Ltd.+ ........       38,877         19,864
     100,000  Champion Technology
                Holdings Ltd. ...............       87,982         16,842

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

      70,000  CP Pokphand Co. Ltd.,
                ADR+ ........................ $     58,725   $     42,525
      10,000  EasyCall International Ltd.+ ..        9,532            947
      26,000  Himachal Futuristic
                Communications Ltd.,
                GDR+ (a)(c) .................      141,200         53,427
      50,000  Hutchison Whampoa Ltd. ........      487,170        508,144
     300,000  Time Engineering Berhad+ ......      316,448         53,997
                                              ------------   ------------
                                                 1,159,168        697,896
                                              ------------   ------------
              EUROPE -- 4.1%
      19,520  Alcatel-Lucent, ADR ...........      390,922        277,574
       1,500  British Sky Broadcasting
                Group plc, ADR ..............       36,400         61,800
       3,600  Carlisle Group Ltd.+ ..........        5,790          7,190
       3,000  E.ON AG .......................      126,255        407,221
      98,000  GN Store Nord A/S .............      533,809      1,448,626
      59,500  Group 4 Securicor plc .........            0        219,020
       3,200  L. M. Ericsson Telephone
                Co., Cl. B, ADR .............       40,907        128,736
      28,000  Nokia Corp., ADR ..............       67,091        568,960
      15,428  Seat Pagine Gialle SpA ........       30,783          9,195
         750  Siemens AG, ADR ...............       23,625         73,913
       5,852  Telecom Italia Media SpA ......        4,669          2,785
      25,000  Telegraaf Media Groep NV ......      541,844        655,072
       8,000  ThyssenKrupp AG ...............      147,115        376,899
      15,000  TNT NV, ADR ...................      198,277        646,200
       1,000  Via Net.Works Inc.+ ...........        2,625             12
     100,000  Vivendi .......................    2,087,247      3,908,653
                                              ------------   ------------
                                                 4,237,359      8,791,856
                                              ------------   ------------
              JAPAN -- 0.2%
      75,000  The Furukawa Electric
                Co. Ltd. ....................      381,079        471,409
                                              ------------   ------------
              LATIN AMERICA -- 0.0%
       9,000  BB Holdings Ltd.+ .............       36,940         34,020
       1,400  Claxson Interactive
                Group Inc.+ .................        2,240         14,084
      25,693  Contax Participacoes SA,
                ADR .........................       11,051         23,586
         562  OneSource Services Inc.+ ......        5,515          7,070
                                              ------------   ------------
                                                    55,746         78,760
                                              ------------   ------------
              NORTH AMERICA -- 15.2%
      80,000  Adelphia Communications
                Corp., Cl. A+ ...............       74,756            800
      10,000  Agere Systems Inc.+ ...........      166,400        191,700
       2,000  America Online Latin
                America Inc., Cl. A+ ........          840              4
       1,000  Amphenol Corp., Cl. A .........        8,184         62,080
       3,000  Andrew Corp.+ .................        8,535         30,690
         500  Avaya Inc.+ ...................        4,138          6,990

                 See accompanying notes to financial statements.

                                       6

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
SCHEDULE OF INVESTMENTS (CONTINUED) -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS (Continued)
              OTHER (Continued)
              NORTH AMERICA (CONTINUED)
      70,000  Cablevision Systems Corp.,
                Cl. A+ ...................... $  1,037,320   $  1,993,600
      40,000  California Micro Devices
                Corp.+ ......................      235,666        175,200
      23,566  CanWest Global
                Communications Corp.+ .......      322,321        222,463
      35,434  CanWest Global
                Communications
                Corp., Cl. A+ ...............      407,389        337,886
      20,000  Charter Communications
                Inc., Cl. A+ ................       58,692         61,200
      10,000  Cogeco Inc. ...................      195,069        250,911
      20,000  Comcast Corp., Cl. A,
                Special+ ....................      159,976        837,600
      25,000  Communications Systems
                Inc. ........................      237,711        249,750
       4,000  Convergys Corp.+ ..............       53,716         95,120
      44,000  Discovery Holding Co.,
                Cl. A+ ......................      278,536        707,960
     100,000  EchoStar Communications
                Corp., Cl. A+ ...............    1,863,471      3,803,000
       7,000  Fisher Communications
                Inc.+ .......................      353,932        309,470
     410,000  Gemstar-TV Guide
                International Inc.+ .........    1,878,517      1,644,100
       1,000  Geoworks Corp.+ ...............        1,375             37
       1,000  Google Inc., Cl. A+ ...........      346,423        460,480
       4,250  Idearc Inc.+ ..................      130,063        121,762
      45,000  IDT Corp.+ ....................      424,047        608,850
      40,000  IDT Corp., Cl. B+ .............      309,786        523,200
      35,000  ION Media Networks Inc.+ ......       55,250         17,500
       1,250  JDS Uniphase Corp.+ ...........       45,488         20,825
       1,000  L-3 Communications
                Holdings Inc. ...............       11,000         81,780
      60,732  Liberty Global Inc., Cl.   A+      1,330,262      1,770,338
      50,000  Liberty Global Inc., Cl. C+ ...    1,219,998      1,400,000
      24,000  Liberty Media Corp. -
                Capital, Cl. A+ .............    1,095,117      2,351,520
      85,000  Liberty Media Corp. -
                Interactive, Cl. A+ .........      713,146      1,833,450
       1,000  Lockheed Martin Corp. .........       22,787         92,070
      20,000  Mediacom Communications
                Corp., Cl. A+ ...............      177,215        160,800
      55,000  Motorola Inc. .................      454,388      1,130,800
      30,000  News Corp., Cl. A .............      439,829        644,400
       2,000  News Corp., Cl. B .............       21,050         44,520
      25,000  Nortel Networks Corp.+ ........      730,036        668,250
       2,524  Orbital Sciences Corp.+ .......       16,208         46,543
       4,000  R. H. Donnelley Corp. .........       53,608        250,920

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

      11,000  SCANA Corp. ................... $    290,110   $    446,820
       5,000  SJW Corp. .....................       78,585        193,800
     125,000  The DIRECTV Group Inc.+ .......    2,487,051      3,117,500
     189,000  Time Warner Inc. ..............    3,285,561      4,116,420
       2,000  TiVo Inc.+ ....................       11,105         10,240
         816  Tut Systems Inc.+ .............       13,135            914
       1,000  Vishay Intertechnology Inc.+ ..       22,908         13,540
      64,000  Yahoo! Inc.+ ..................    2,034,909      1,634,560
                                              ------------   ------------
                                                23,165,609     32,742,363
                                              ------------   ------------
              TOTAL OTHER ...................   28,998,961     42,782,284
                                              ------------   ------------
              WIRELESS TELECOMMUNICATIONS SERVICES -- 32.8%
              ASIA/PACIFIC -- 3.4%
      80,000  China Mobile Ltd., ADR ........    1,165,904      3,457,600
      75,000  China Unicom Ltd., ADR ........      628,819      1,116,750
         666  Hutchison
                Telecommunications
                International Ltd.+ .........          519          1,678
       8,000  PT Indosat Tbk, ADR ...........       78,652        308,400
      90,000  SK Telecom Co. Ltd., ADR ......    1,068,189      2,383,200
                                              ------------   ------------
                                                 2,942,083      7,267,628
                                              ------------   ------------
              EUROPE -- 4.4%
      60,000  Bouygues SA ...................    1,680,722      3,851,627
       2,000  Millicom International
                Cellular SA+ ................       17,000        123,280
         800  Mobile TeleSystems
                OJSC, ADR ...................       29,612         40,152
      58,000  Vimpel-Communications,
                ADR+ ........................      442,160      4,579,100
      35,075  Vodafone Group plc, ADR .......      813,443        974,383
                                              ------------   ------------
                                                 2,982,937      9,568,542
                                              ------------   ------------
              JAPAN -- 3.0%
         600  KDDI Corp. ....................    3,016,473      4,068,737
       1,600  NTT DoCoMo Inc. ...............    4,464,327      2,527,625
                                              ------------   ------------
                                                 7,480,800      6,596,362
                                              ------------   ------------
              LATIN AMERICA -- 4.7%
     216,000  America Movil SAB de
                CV, Cl. L, ADR ..............    1,123,833      9,767,520
      17,500  Grupo Iusacell SA de CV+ ......       29,040        133,643
         460  Tele Norte Celular
                Participacoes SA, ADR .......        7,079          4,140
       1,150  Telemig Celular
                Participacoes SA, ADR .......       30,497         43,987
       4,430  Tim Participacoes SA,
                ADR .........................       54,017        153,367
       3,020  Vivo Participacoes SA+ ........        6,747         20,779
      23,976  Vivo Participacoes SA, ADR ....      316,130         98,302
      13,024  Vivo Participacoes SA, Pfd.+ ..      159,589         53,279
                                              ------------   ------------
                                                 1,726,932     10,275,017
                                              ------------   ------------

                 See accompanying notes to financial statements.

                                       7

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
SCHEDULE OF INVESTMENTS (CONTINUED) -- DECEMBER 31, 2006
- --------------------------------------------------------------------------------

                                                                 MARKET
    SHARES                                        COST           VALUE
   --------                                       ----           -------

              COMMON STOCKS (Continued)
              WIRELESS TELECOMMUNICATIONS SERVICES (Continued)
              NORTH AMERICA -- 17.3%
      67,000  Alltel Corp. .................. $  2,782,629   $  4,052,160
      35,000  Centennial Communications
                Corp. .......................      182,988        251,650
      40,000  Dobson Communications
                Corp., Cl. A+ ...............      129,100        348,400
     155,000  Rogers Communications
                Inc., Cl. B .................    1,647,700      9,238,000
      42,800  Rural Cellular Corp., Cl. A+ ..      437,823        562,392
     440,000  Sprint Nextel Corp. ...........    5,808,751      8,311,600
       6,000  SunCom Wireless Holdings
                Inc., Cl. A+ ................       20,520          4,200
      70,000  Telephone & Data
                Systems Inc. ................    1,520,586      3,803,100
      62,000  Telephone & Data
                Systems Inc., Special .......    1,323,304      3,075,200
     111,000  United States Cellular
                Corp.+ ......................    5,018,635      7,724,490
                                              ------------   ------------
                                                18,872,036     37,371,192
                                              ------------   ------------
              TOTAL WIRELESS
                TELECOMMUNICATIONS
                SERVICES ....................   34,004,788     71,078,741
                                              ------------   ------------
              TOTAL COMMON STOCKS ...........  127,055,968    215,657,198
                                              ------------   ------------
              RIGHTS -- 0.0%
              DIVERSIFIED TELECOMMUNICATIONS SERVICES -- 0.0%
              ASIA/PACIFIC -- 0.0%
     315,789  True Corp. plc+ (c) ...........            0          3,441
                                              ------------   ------------
              TOTAL RIGHTS ..................            0          3,441
                                              ------------   ------------
              WARRANTS -- 0.0%
              OTHER -- 0.0%
              ASIA/PACIFIC -- 0.0%
      20,000  Champion Technology
                Holdings Ltd.,
                expire  08/03/08+ ...........            0              0
      20,303  Champion Technology
                Holdings Ltd.,
                expire 02/26/07+ (c) ........            0            682
                                              ------------   ------------
                                                         0            682
                                              ------------   ------------
              NORTH AMERICA -- 0.0%
       1,473  Lucent Technologies Inc.,
                expire 12/10/07+ ............        2,445            457
                                              ------------   ------------
              TOTAL WARRANTS ................        2,445          1,139
                                              ------------   ------------

   PRINCIPAL                                                     MARKET
    AMOUNT                                        COST           VALUE
   --------                                       ----           -------

              U.S. GOVERNMENT OBLIGATIONS -- 0.1%
    $148,000  U.S. Treasury Bill,
                5.004%++, 03/29/07 .......... $    146,296   $    146,296
                                              ------------   ------------
              TOTAL
                INVESTMENTS -- 99.8% ........ $127,204,709    215,808,074
                                              ============
              Other Assets and Liabilities (Net) -- 0.2%          440,070
                                                             ------------
              NET ASSETS -- 100.0% .......................   $216,248,144
                                                             ============
- ----------------
 (a) Security exempt from registration  under Rule 144A of the Securities Act of
     1933, as amended.  These  securities may be resold in  transactions  exempt
     from registration,  normally to qualified institutional buyers. At December
     31, 2006, the market value of Rule 144A  securities  amounted to $3,829,874
     or 1.77% of total net assets.  Except as noted in (b), these securities are
     liquid.
 (b) At December  31, 2006,  the Fund held an  investment  in a  restricted  and
     illiquid security amounting to $646 or 0.00% of total net assets, which was
     valued under methods approved by the Board, as follows:
                                                                       12/31/06
                                                                       Carrying
Acquisition                               Acquisition    Acquisition     Value
  Shares  Issuer                              Date         Cost        Per Unit
  ------  ------                              ----         ----        --------

   8,075 Thai Telephone &
           Telecom, GDR ...................  03/31/94    $100,542       $0.0800

(c) Security fair valued under procedures established by the Board of Directors.
    The procedures may include reviewing available  financial  information about
    the company and  reviewing  valuation  of  comparable  securities  and other
    factors on a regular  basis.  At December 31, 2006, the market value of fair
    valued  securities  amounted  to  $57,550  or  0.03% of  total  net  assets.
+   Non-income producing security.
++  Represents annualized yield at date of purchase.
ADR American Depository Receipt
BDR Brazilian Depository Receipt
GDR Global Depository Receipt

                                       % OF
                                      MARKET            MARKET
GEOGRAPHIC DIVERSIFICATION             VALUE            VALUE
- --------------------------             -----            -----
North America ....................     47.6%         $102,799,687
Europe ...........................     30.5            65,794,655
Latin America ....................     10.0            21,595,705
Asia/Pacific .....................      7.8            16,837,849
Japan ............................      4.1             8,780,178
                                      ------         ------------
                                      100.0%         $215,808,074
                                      ======         ============





                 See accompanying notes to financial statements.

                                       8



                    THE GAMCO GLOBAL TELECOMMUNICATIONS FUND

STATEMENT OF ASSETS AND LIABILITIES
DECEMBER 31, 2006
- -------------------------------------------------------------------------------
ASSETS:
  Investments at value (cost $127,204,709) ...............   $215,808,074
  Dividends and interest receivable ......................        480,530
  Receivable for Fund shares sold ........................        369,653
  Prepaid expense ........................................          9,315
                                                             ------------
  TOTAL ASSETS ...........................................    216,667,572
                                                             ------------
LIABILITIES:
  Payable to custodian ...................................         34,028
  Foreign currency, at value (cost $8,052) ...............          7,962
  Payable for investment advisory fees ...................        181,238
  Payable for shareholder communications
    expenses .............................................         51,625
  Payable for distribution fees ..........................         45,708
  Payable for shareholder services fees ..................         42,249
  Payable for legal and audit fees .......................         33,631
  Payable for Fund shares redeemed .......................          4,471
  Payable for accounting fees ............................          7,501
  Other accrued expenses .................................         11,015
                                                             ------------
  TOTAL LIABILITIES ......................................        419,428
                                                             ------------
  NET ASSETS applicable to 9,626,925
    shares outstanding ...................................   $216,248,144
                                                             ============
NET ASSETS CONSIST OF:
  Paid-in capital, each class at $0.001
    par value ............................................   $172,997,060
  Accumulated distributions in excess of net
    investment income ....................................       (253,667)
  Accumulated net realized loss on investments
    and foreign currency transactions ....................    (45,101,628)
  Net unrealized appreciation on investments .............     88,603,365
  Net unrealized appreciation on foreign
    currency translations ................................          3,014
                                                             ------------
  NET ASSETS .............................................   $216,248,144
                                                             ============
SHARES OF CAPITAL STOCK:
  CLASS AAA:
  Net Asset Value, offering and redemption price
    per share ($214,436,049 / 9,545,350 shares
    outstanding; 75,000,000 shares authorized) ...........         $22.46
                                                                   ======
  CLASS A:
  Net Asset Value and redemption price per share
    ($1,170,091 / 52,155 shares outstanding;
    50,000,000 shares authorized) ........................         $22.43
                                                                   ======
  Maximum offering price per share (NAV / .9425,
    based on maximum sales charge of 5.75%
    of the offering price) ...............................         $23.80
                                                                   ======
  CLASS B:
  Net Asset Value and offering price per share
    ($291,430 / 13,308 shares outstanding;
    25,000,000 shares authorized) ........................         $21.90(a)
                                                                   ======
  CLASS C:
  Net Asset Value and offering price per share
    ($350,574 / 16,112 shares outstanding;
    25,000,000 shares authorized) ........................         $21.76(a)
                                                                   ======

- -------------------
(a) Redemption price varies based on the length of time held.

STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 2006
- --------------------------------------------------------------------------------
INVESTMENT INCOME:
  Dividends (net of foreign taxes of $383,645) ...........    $ 3,987,314
  Interest ...............................................        223,260
                                                              -----------
  TOTAL INVESTMENT INCOME ................................      4,210,574
                                                              -----------
EXPENSES:
  Investment advisory fees ...............................      1,920,590
  Distribution fees - Class AAA ..........................        476,804
  Distribution fees - Class A ............................          1,947
  Distribution fees - Class B ............................          3,257
  Distribution fees - Class C ............................          2,328
  Shareholder services fees ..............................        240,167
  Shareholder communications expenses ....................        111,665
  Custodian fees .........................................         53,806
  Legal and audit fees ...................................         50,778
  Accounting fees ........................................         45,000
  Registration expenses ..................................         41,005
  Directors' fees ........................................         20,842
  Interest expense .......................................          4,742
  Miscellaneous expenses .................................         25,400
                                                              -----------
  TOTAL EXPENSES .........................................      2,998,331
  Less: Custodian fee credits ............................         (1,154)
                                                              -----------
  NET EXPENSES ...........................................      2,997,177
                                                              -----------
  NET INVESTMENT INCOME ..................................      1,213,397
                                                              -----------
NET REALIZED AND UNREALIZED GAIN (LOSS) ON
  INVESTMENTS AND FOREIGN CURRENCY:
  Net realized gain on investments .......................     16,179,853
  Net realized gain on foreign
    currency transactions ................................          3,769
                                                              -----------
  Net realized gain on investments and foreign
    currency transactions ................................     16,183,622
                                                              -----------
  Net change in unrealized appreciation/
    depreciation on investments ..........................     33,118,735
  Net change in unrealized appreciation/
    depreciation on foreign currency
    translations .........................................          3,901
                                                              -----------
  Net change in unrealized appreciation/
    depreciation on investments and foreign
    currency translations ................................     33,122,636
                                                              -----------
  NET REALIZED AND UNREALIZED GAIN (LOSS) ON
    INVESTMENTS AND FOREIGN CURRENCY .....................     49,306,258
                                                              -----------
  NET INCREASE IN NET ASSETS RESULTING
    FROM OPERATIONS ......................................    $50,519,655
                                                              ===========

                 See accompanying notes to financial statements.

                                       9


                    THE GAMCO GLOBAL TELECOMMUNICATIONS FUND

STATEMENT OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------


                                                                                   YEAR ENDED           YEAR ENDED
                                                                                DECEMBER 31, 2006    DECEMBER 31, 2005
                                                                                -----------------    -----------------
OPERATIONS:
                                                                                                 
  Net investment income .....................................................    $  1,213,397           $  1,791,366
  Net realized gain on investments and foreign currency transactions ........      16,183,622              5,129,883
  Net change in unrealized appreciation/depreciation on investments
    and foreign currency translations .......................................      33,122,636             (2,147,155)
                                                                                 ------------           ------------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ......................      50,519,655              4,774,094
                                                                                 ------------           ------------
DISTRIBUTIONS TO SHAREHOLDERS:
  Net investment income
    Class AAA ...............................................................      (1,296,097)            (2,003,135)
    Class A .................................................................          (7,802)                (8,156)
    Class C .................................................................            (692)                  (117)
                                                                                 ------------           ------------
  TOTAL DISTRIBUTIONS TO SHAREHOLDERS .......................................      (1,304,591)            (2,011,408)
                                                                                 ------------           ------------
CAPITAL SHARE TRANSACTIONS:
    Class AAA ...............................................................     (20,313,616)           (25,916,855)
    Class A .................................................................         237,838                124,167
    Class B .................................................................        (210,652)              (435,480)
    Class C .................................................................          94,168                (62,137)
                                                                                 ------------           ------------
  NET DECREASE IN NET ASSETS FROM CAPITAL SHARE TRANSACTIONS ................     (20,192,262)           (26,290,305)
                                                                                 ------------           ------------
  REDEMPTION FEES ...........................................................             589                  7,745
                                                                                 ------------           ------------
  NET INCREASE (DECREASE) IN NET ASSETS .....................................      29,023,391            (23,519,874)
NET ASSETS:
  Beginning of period .......................................................     187,224,753            210,744,627
                                                                                 ------------           ------------
  End of period (including undistributed net investment income of
    $0 and $0, respectively) ................................................    $216,248,144           $187,224,753
                                                                                 ============           ============


                 See accompanying notes to financial statements.

                                       10


THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
1.  ORGANIZATION.   The  GAMCO  Global  Telecommunications  Fund  (the  "Fund"),
formerly, The Gabelli Global  Telecommunications  Fund, a series of GAMCO Global
Series Funds, Inc. (the "Corporation"),  formerly,  Gabelli Global Series Funds,
Inc.,  was organized on July 16, 1993 as a Maryland  corporation.  The Fund is a
non-diversified  open-end  management  investment  company  registered under the
Investment  Company Act of 1940,  as amended (the "1940  Act"),  and one of four
separately   managed   portfolios   (collectively,   the  "Portfolios")  of  the
Corporation.  The Fund's  primary  objective is capital  appreciation.  The Fund
commenced investment  operations on November 1, 1993.

2. SIGNIFICANT  ACCOUNTING POLICIES.  The preparation of financial statements in
accordance with United States ("U.S.") generally accepted accounting  principles
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.  The  following  is a summary of  significant  accounting
policies followed by the Fund in the preparation of its financial statements.

SECURITY  VALUATION.  Portfolio  securities  listed or  traded  on a  nationally
recognized securities exchange or traded in the U.S. over-the-counter market for
which market quotations are readily available are valued at the last quoted sale
price or a market's  official  closing  price as of the close of business on the
day the  securities  are being  valued.  If there  were no sales  that day,  the
security is valued at the  average of the  closing  bid and asked  prices or, if
there were no asked  prices  quoted on that day,  then the security is valued at
the closing bid price on that day. If no bid or asked  prices are quoted on such
day,  the  security is valued at the most  recently  available  price or, if the
Board of  Directors  (the  "Board") so  determines,  by such other method as the
Board shall determine in good faith to reflect its fair market value.  Portfolio
securities  traded on more than one national  securities  exchange or market are
valued according to the broadest and most  representative  market, as determined
by Gabelli Funds, LLC (the "Adviser").

Portfolio  securities  primarily traded on a foreign market are generally valued
at the preceding  closing values of such securities on the relevant market,  but
may be fair valued  pursuant to  procedures  established  by the Board if market
conditions change  significantly after the close of the foreign market but prior
to the  close of  business  on the day the  securities  are being  valued.  Debt
instruments  with  remaining  maturities  of 60 days or less that are not credit
impaired are valued at amortized cost,  unless the Board  determines such amount
does not reflect the securities' fair value, in which case these securities will
be fair valued as determined by the Board.  Debt  instruments  having a maturity
greater  than 60 days for which  market  quotations  are readily  available  are
valued at the average of the latest bid and asked prices. If there were no asked
prices  quoted on such day,  the security is valued using the closing bid price.
Futures contracts are valued at the closing  settlement price of the exchange or
board of trade on which the applicable contract is traded.

Securities and assets for which market  quotations are not readily available are
fair  valued as  determined  by the  Board.  Fair  valuation  methodologies  and
procedures may include, but are not limited to: analysis and review of available
financial and non-financial  information  about the company;  comparisons to the
valuation and changes in valuation of similar securities, including a comparison
of foreign  securities to the equivalent U.S. dollar value ADR securities at the
close of the U.S.  exchange;  and evaluation of any other information that could
be indicative of the value of the security.

In September 2006, the Financial  Accounting Standards Board (the "FASB") issued
Statement  of  Financial   Accounting   Standards   ("SFAS")   157,  Fair  Value
Measurements,  which  clarifies  the  definition  of  fair  value  and  requires
companies  to expand  their  disclosure  about the use of fair  value to measure
assets and  liabilities  in interim  and annual  periods  subsequent  to initial
recognition.  Adoption of SFAS 157  requires  the use of the price that would

                                       11

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
be  received  to sell an asset or paid to  transfer  a  liability  in an orderly
transaction  between market  participants at the  measurement  date. SFAS 157 is
effective  for  financial  statements  issued for fiscal years  beginning  after
November 15, 2007, and interim  periods within those fiscal years. At this time,
management is in the process of reviewing the  requirements  of SFAS 157 against
its current valuation policies to determine future applicability.

REPURCHASE  AGREEMENTS.  The Fund may  enter  into  repurchase  agreements  with
primary  government  securities dealers recognized by the Federal Reserve Board,
with  member  banks of the  Federal  Reserve  System,  or with other  brokers or
dealers that meet credit  guidelines  established by the Adviser and reviewed by
the Board.  Under the terms of a typical  repurchase  agreement,  the Fund takes
possession  of an  underlying  debt  obligation  subject to an obligation of the
seller to repurchase,  and the Fund to resell,  the obligation at an agreed upon
price and time, thereby  determining the yield during the Fund's holding period.
The Fund will always receive and maintain  securities as collateral whose market
value, including accrued interest,  will be at least equal to 102% of the dollar
amount  invested by the Fund in each  agreement.  The Fund will make payment for
such  securities  only upon  physical  delivery  or upon  evidence of book entry
transfer of the collateral to the account of the  custodian.  To the extent that
any repurchase transaction exceeds one business day, the value of the collateral
is marked-to-market on a daily basis to maintain the adequacy of the collateral.
If the seller defaults and the value of the collateral declines or if bankruptcy
proceedings   are  commenced  with  respect  to  the  seller  of  the  security,
realization of the collateral by the Fund may be delayed or limited. At December
31, 2006, there were no open repurchase agreements.

FUTURES  CONTRACTS.  The Fund may engage in futures contracts for the purpose of
hedging  against  changes in the value of its  portfolio  securities  and in the
value of  securities  it  intends  to  purchase.  Upon  entering  into a futures
contract,  the Fund is required to deposit  with the broker an amount of cash or
cash equivalents equal to a certain  percentage of the contract amount.  This is
known as the "initial margin". Subsequent payments ("variation margin") are made
or received by the Fund each day,  depending  on the daily  fluctuations  in the
value    of    the    contract,     which    are    included    in    unrealized
appreciation/depreciation   on  investments  and  futures  contracts.  The  Fund
recognizes a realized gain or loss when the contract is closed.

There are several  risks in  connection  with the use of futures  contracts as a
hedging  instrument.   The  change  in  value  of  futures  contracts  primarily
corresponds  with the  value  of their  underlying  instruments,  which  may not
correlate with the change in value of the hedged investments. In addition, there
is the risk that the Fund may not be able to enter  into a  closing  transaction
because of an illiquid  secondary  market.  At December 31, 2006,  there were no
open futures contracts.

SECURITIES SOLD SHORT.  The Fund may enter into short sale  transactions.  Short
selling involves selling  securities that may or may not be owned and, at times,
borrowing the same securities for delivery to the purchaser,  with an obligation
to replace such borrowed  securities at a later date. The proceeds received from
short sales are recorded as liabilities  and the Fund records an unrealized gain
or loss to the extent of the  difference  between the proceeds  received and the
value of an open short position on the day of determination.  The Fund records a
realized gain or loss when the short  position is closed out. By entering into a
short sale, the Fund bears the market risk of an unfavorable change in the price
of the security sold short.  Dividends on short sales are recorded as an expense
by the Fund on the  ex-dividend  date and  interest  expense is  recorded on the
accrual  basis.  The Fund did not hold any short  positions  as of December  31,
2006.

FORWARD  FOREIGN  EXCHANGE  CONTRACTS.  The Fund may engage in  forward  foreign
exchange contracts for hedging a specific transaction with respect to either the
currency in which the transaction is denominated or

                                       12

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
another currency as deemed appropriate by the Adviser.  Forward foreign exchange
contracts  are valued at the forward rate and are  marked-to-market  daily.  The
change in market value is included in  unrealized  appreciation/depreciation  on
investments and foreign currency translations.  When the contract is closed, the
Fund records a realized gain or loss equal to the  difference  between the value
of the  contract  at the  time it was  opened  and the  value at the time it was
closed.

The use of forward foreign exchange contracts does not eliminate fluctuations in
the underlying prices of the Fund's portfolio securities,  but it does establish
a rate of exchange that can be achieved in the future.  Although forward foreign
exchange  contracts  limit the risk of loss due to a decline in the value of the
hedged currency, they also limit any potential gain that might result should the
value of the currency increase. In addition,  the Fund could be exposed to risks
if the  counterparties  to the  contracts  are unable to meet the terms of their
contracts.  At December 31, 2006,  there were no open forward  foreign  exchange
contracts.

FOREIGN CURRENCY TRANSLATIONS.  The books and records of the Fund are maintained
in  U.S.  dollars.  Foreign  currencies,   investments,  and  other  assets  and
liabilities  are translated  into U.S.  dollars at the current  exchange  rates.
Purchases  and  sales  of  investment  securities,   income,  and  expenses  are
translated  at the exchange  rate  prevailing  on the  respective  dates of such
transactions.  Unrealized  gains and losses that result from  changes in foreign
exchange rates and/or changes in market prices of securities  have been included
in unrealized  appreciation/depreciation  on  investments  and foreign  currency
translations.  Net realized  foreign  currency  gains and losses  resulting from
changes in exchange  rates include  foreign  currency  gains and losses  between
trade date and settlement date on investment  securities  transactions,  foreign
currency  transactions,  and the difference  between the amounts of interest and
dividends  recorded on the books of the Fund and the amounts actually  received.
The  portion of foreign  currency  gains and losses  related to  fluctuation  in
exchange rates between the initial trade date and subsequent  sale trade date is
included in realized gain/(loss) on investments.

FOREIGN  SECURITIES.  The Fund  may  directly  purchase  securities  of  foreign
issuers.  Investing in securities of foreign issuers  involves special risks not
typically  associated  with investing in securities of U.S.  issuers.  The risks
include  possible  revaluation of currencies,  the ability to repatriate  funds,
less complete financial information about companies, and possible future adverse
political  and  economic  developments.  Moreover,  securities  of many  foreign
issuers and their markets may be less liquid and their prices more volatile than
those of securities of comparable U.S. issuers.

FOREIGN  TAXES.  The Fund may be subject to  foreign  taxes on income,  gains on
investments,  or currency  repatriation,  a portion of which may be recoverable.
The Fund will accrue such taxes and  recoveries  as  applicable,  based upon its
current interpretation of tax rules and regulations that exist in the markets in
which it invests.

RESTRICTED  AND  ILLIQUID  SECURITIES.  The Fund may invest up to 15% of its net
assets in  securities  for which the markets are illiquid.  Illiquid  securities
include  securities the disposition of which is subject to substantial  legal or
contractual  restrictions.  The sale of illiquid  securities often requires more
time and  results  in higher  brokerage  charges or dealer  discounts  and other
selling  expenses  than does the sale of  securities  eligible  for  trading  on
national securities  exchanges or in the  over-the-counter  markets.  Restricted
securities  may  sell at a price  lower  than  similar  securities  that are not
subject to  restrictions on resale.  Securities  freely saleable among qualified
institutional investors under special rules adopted by the SEC may be treated as
liquid  if they  satisfy  liquidity  standards  established  by the  Board.  The
continued  liquidity  of  such  securities  is not as  well  assured  as that of
publicly  traded  securities,  and  accordingly  the Board  will  monitor  their
liquidity.

                                       13

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
CONCENTRATION  RISK.  The Fund may  invest a high  percentage  of its  assets in
specific  sectors  of the  market  in order to  achieve  a  potentially  greater
investment  return.  As a result,  the Fund may be more susceptible to economic,
political,  and regulatory  developments  in a particular  sector of the market,
positive or negative,  and may experience increased volatility to the Fund's net
asset value ("NAV") and a magnified effect in its total return.

SECURITIES  TRANSACTIONS  AND INVESTMENT  INCOME.  Securities  transactions  are
accounted  for on the  trade  date  with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization  of premium and  accretion  of discount) is recorded on the accrual
basis.  Premiums  and  discounts  on debt  securities  are  amortized  using the
effective  yield  to  maturity  method.  Dividend  income  is  recorded  on  the
ex-dividend date except for certain  dividends which are recorded as soon as the
Fund  is  informed  of the  dividend.

DETERMINATION   OF  NET  ASSET  VALUE  AND  CALCULATION  OF  EXPENSES.   Certain
administrative  expenses are common to, and allocated among,  various affiliated
funds.  Such allocations are made on the basis of each Fund's average net assets
or other criteria  directly  affecting the expenses as determined by the Adviser
pursuant to procedures established by the Board.

In calculating the NAV per share of each class,  investment income, realized and
unrealized  gains and losses,  redemption  fees,  and expenses  other than class
specific  expenses,  are allocated  daily to each class of shares based upon the
proportion  of  net  assets  of  each  class  at  the  beginning  of  each  day.
Distribution  expenses  are borne  solely by the class  incurring  the  expense.

CUSTODIAN FEE CREDITS AND INTEREST EXPENSE. When cash balances are maintained in
the  custody  account,  the Fund  receives  credits  which  are  used to  offset
custodian  fees.  The gross  expenses  paid under the  custody  arrangement  are
included in custodian fees in the Statement of Operations with the corresponding
expense offset, if any, shown as "custodian fee credits". When cash balances are
overdrawn, the Fund is charged an overdraft fee equal to 2.00% above the Federal
Funds rate on  outstanding  balances.  This  amount,  if any,  would be shown as
"interest expense" in the Statement of Operations.

DISTRIBUTIONS TO SHAREHOLDERS. Distributions to shareholders are recorded on the
ex-dividend date.  Distributions to shareholders are based on income and capital
gains as determined in accordance with Federal income tax regulations, which may
differ from income and capital gains as determined under U.S. generally accepted
accounting  principles.   These  differences  are  primarily  due  to  differing
treatments  of income and gains on various  investment  securities  and  foreign
currency  transactions  held by the  Fund,  timing  differences,  and  differing
characterizations  of  distributions  made by the Fund.  Distributions  from net
investment  income include net realized gains on foreign currency  transactions.
These book/tax  differences are either temporary or permanent in nature.  To the
extent these differences are permanent,  adjustments are made to the appropriate
capital   accounts   in  the   period   when  the   differences   arise.   These
reclassifications  have no impact on the NAV of the Fund.  For the  fiscal  year
ended  December 31, 2006,  reclassifications  were made to decrease  accumulated
distributions  in excess of net  investment  income by $78,445  and to  increase
accumulated net realized loss on investments and foreign  currency  transactions
by $3,769, with an offsetting  adjustment to paid-in capital.

The tax character of  distributions  paid during the fiscal years ended December
31, 2006 and December 31, 2005 was $1,304,591 and $2,011,408,  respectively,  of
ordinary income.

PROVISION  FOR  INCOME  TAXES.  The Fund  intends  to  continue  to qualify as a
regulated  investment company under Subchapter M of the Internal Revenue Code of
1986, as amended (the  "Code").  It is the policy of the Fund to comply with the
requirements of the Code applicable to regulated investment companies and to

                                       14

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
distribute  substantially  all of its net investment  company taxable income and
net capital gains. Therefore, no provision for Federal income taxes is required.

At December 31, 2006, the difference between book basis and tax basis unrealized
appreciation  was  primarily  due to  deferral of losses from wash sales for tax
purposes.

As of December 31, 2006, the components of  accumulated  earnings/(losses)  on a
tax basis were as follows:

          Capital loss carryforwards .........................  $(38,567,402)
          Net unrealized appreciation on investments,
            foreign receivables and payables .................    81,818,486
                                                                ------------
          Total accumulated earnings .........................  $ 43,251,084
                                                                ============

At December 31, 2006,  the Fund has net capital loss  carryforwards  for Federal
income  tax  purposes  of  $38,567,402,  which are  available  to reduce  future
required distributions of net capital gains to shareholders.  $23,342,608 of the
loss  carryforward is available  through 2010;  $11,910,139 is available through
2011; and $3,314,655 is available  through 2012. For the year ended December 31,
2006, the Fund utilized net capital loss carryforwards of $15,491,200.

The following  summarizes  the tax cost of  investments  and related  unrealized
appreciation/(depreciation) at December 31, 2006:



                                                                     GROSS            GROSS
                                                                  UNREALIZED       UNREALIZED       NET UNREALIZED
                                                 COST            APPRECIATION     DEPRECIATION       APPRECIATION
                                                 ----            ------------     ------------      --------------
                                                                                          
          Investments ....................   $133,992,602         $95,811,420     $(13,995,948)       $81,815,472


In July 2006, the FASB issued Interpretation No. 48, "Accounting for Uncertainty
in  Income  Taxes,   an   Interpretation   of  FASB  Statement  No.  109"  ("the
Interpretation").  The  Interpretation  establishes for all entities,  including
pass  through  entities  such as the Fund,  a minimum  threshold  for  financial
statement  recognition  of the benefit of positions  taken in filing tax returns
(including  whether  an entity is  taxable in a  particular  jurisdiction),  and
requires certain expanded tax disclosures.  The Interpretation is required to be
implemented  for a  calendar-year  open-end fund no later than its June 29, 2007
NAV, and is to be applied to all open tax years as of the date of effectiveness.
Management has begun to evaluate the  application of the  Interpretation  to the
Fund, and is not in a position at this time to estimate the  significance of its
impact, if any, on the Fund's financial statements.

3. INVESTMENT  ADVISORY AGREEMENT AND OTHER  TRANSACTIONS.  The Fund has entered
into an  investment  advisory  agreement  (the  "Advisory  Agreement")  with the
Adviser which provides that the Fund will pay the Adviser a fee,  computed daily
and paid monthly,  at the annual rate of 1.00% of the value of its average daily
net assets.  In accordance with the Advisory  Agreement,  the Adviser provides a
continuous   investment   program  for  the  Fund's   portfolio,   oversees  the
administration  of all aspects of the Fund's business and affairs,  and pays the
compensation  of all  Officers  and  Directors  of the Fund  who are  affiliated
persons of the Adviser.

If total net  assets of the  Corporation  are in  excess  of $100  million,  the
Corporation pays each Director that is not considered to be an affiliated person
an annual retainer of $3,000 plus $500 for each Board meeting  attended and they
are reimbursed for any out of pocket expenses incurred in attending meetings. If
total net assets of the Corporation are below $100 million, the Corporation pays
each Independent  Director an annual retainer of $1,500 plus $250 for each Board
meeting attended and they are reimbursed for any out of pocket expenses incurred
in attending  meetings.  All Board  committee  members  receive $500 per meeting
attended.  Directors  who  are  directors  or  employees  of the  Adviser  or an
affiliated  company receive no compensation  or expense  reimbursement  from the
Fund.

                                       15


THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
4.  DISTRIBUTION  PLAN.  The Fund's Board has adopted a  distribution  plan (the
"Plan")  for each class of shares  pursuant  to Rule  12b-1  under the 1940 Act.
Gabelli & Company,  Inc.  ("Gabelli &  Company"),  an  affiliate of the Adviser,
serves as  distributor  of the Fund.  Under the Class AAA, Class A, Class B, and
Class C Share  Plans,  payments  are  authorized  to Gabelli & Company at annual
rates of 0.25%, 0.25%, 1.00%, and 1.00%, respectively,  of the average daily net
assets of those classes,  the annual  limitations under each Plan. Such payments
are accrued daily and paid monthly.

5. PORTFOLIO SECURITIES. Purchases and proceeds from the sales of securities for
the  fiscal  year ended  December  31,  2006,  other  than  short-term  and U.S.
Government securities, aggregated $12,858,127 and $24,122,075, respectively.

6. TRANSACTIONS WITH AFFILIATES. During the fiscal year ended December 31, 2006,
the  Fund  paid   brokerage   commissions  of  $30,321  to  Gabelli  &  Company.
Additionally,  Gabelli & Company  informed the Fund that it received $5,983 from
investors  representing  commissions  (sales charges and  underwriting  fees) on
sales and redemptions of Fund shares.

The cost of calculating  the Fund's NAV per share is a Fund expense  pursuant to
the Advisory Agreement between the Fund and the Adviser.  During the fiscal year
ended  December  31,  2006,  the Fund paid or accrued  $45,000 to the Adviser in
connection with the cost of computing the Fund's NAV.

7. LINE OF CREDIT.  The Fund has access to an unsecured  line of credit of up to
$25,000,000  from the  custodian for temporary  borrowing  purposes.  Borrowings
under this  arrangement  bear  interest at 0.75% above the Federal Funds rate on
outstanding balances.  This amount, if any, would be shown as "interest expense"
in the Statement of Operations.  At December 31, 2006,  there were no borrowings
outstanding from the line of credit.

The  average  daily  amount of  borrowings  outstanding  from the line of credit
within the fiscal  year ended  December  31,  2006 was  $71,899  with a weighted
average  interest rate of 5.18%.  The maximum amount borrowed at any time during
the fiscal year ended December 31, 2006 was $3,326,000.

8. CAPITAL STOCK TRANSACTIONS.  The Fund currently offers four classes of shares
- - Class AAA Shares,  Class A Shares,  Class B Shares, and Class C Shares.  Class
AAA Shares are offered only to investors  who acquire them directly from Gabelli
& Company, or through selected  broker/dealers,  or the transfer agent without a
sales charge.  Class A Shares are subject to a maximum front end sales charge of
5.75%. Class B Shares are subject to a contingent deferred sales charge ("CDSC")
upon redemption within six years of purchase and automatically  convert to Class
A Shares  approximately eight years after the original purchase.  The applicable
CDSC is equal to a  declining  percentage  of the lesser of the NAV per share at
the date of the  original  purchase or at the date of  redemption,  based on the
length of time  held.  Class C Shares  are  subject to a 1.00% CDSC for one year
after  purchase.  Class B Shares are available only through  exchange of Class B
Shares of other funds  distributed by Gabelli & Company.  The Board has approved
Class I Shares which have not been offered publicly.

The Fund imposes a redemption fee of 2.00% on Class AAA Shares,  Class A Shares,
Class B Shares,  and Class C Shares that are  redeemed or exchanged on or before
the seventh day after the date of a purchase.  (Prior to June 15, 2005, the Fund
imposed a redemption  fee on shares that were redeemed or exchanged on or before
the sixtieth day after the date of a purchase.)  The  redemption fee is deducted
from  the  proceeds  otherwise  payable  to the  redeeming  shareholders  and is
retained by the Fund. The redemption fees retained by the Fund during the fiscal
years ended December 31, 2006 and December 31, 2005 amounted to $589 and $7,745,
respectively.

                                       16

THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
- --------------------------------------------------------------------------------
The redemption fee does not apply to shares purchased  through programs that the
Adviser  determined to have  appropriate  short-term  trading policies in place.
Additionally,  certain recordkeepers for qualified and non-qualified  retirement
plans that could not collect the redemption fee at the participant  level due to
systems  limitations  have  received an  extension to  implement  such  systems.

Transactions in shares of capital stocks were as follows:


                                                              YEAR ENDED                        YEAR ENDED
                                                           DECEMBER 31, 2006                 DECEMBER 31, 2005
                                                     ----------------------------      ---------------------------
                                                        SHARES          AMOUNT            SHARES         AMOUNT
                                                     ----------      ------------      ----------     ------------
                                                               CLASS AAA                         CLASS AAA
                                                     ----------------------------      ---------------------------
                                                                                          
Shares sold .......................................   1,918,009      $ 37,710,107         947,426     $ 16,136,166
Shares issued upon reinvestment of distributions ..      55,184         1,236,136         108,341        1,901,378
Shares redeemed ...................................  (3,033,740)      (59,259,859)     (2,579,717)     (43,954,399)
                                                     ----------      ------------      ----------     ------------
    Net decrease ..................................  (1,060,547)     $(20,313,616)     (1,523,950)    $(25,916,855)
                                                     ==========      ============      ==========     ============
                                                                CLASS A                          CLASS A
                                                     ----------------------------      ---------------------------
Shares sold .......................................      22,898      $    474,817          22,621     $    384,773
Shares issued upon reinvestment of distributions ..         303             6,781             386            6,767
Shares redeemed ...................................     (13,041)         (243,760)        (15,718)        (267,373)
                                                     ----------      ------------      ----------     ------------
    Net increase ..................................      10,160      $    237,838           7,289     $    124,167
                                                     ==========      ============      ==========     ============
                                                                CLASS B                          CLASS B
                                                     ----------------------------      ---------------------------
Shares redeemed ...................................     (11,513)     $   (210,652)        (26,153)    $   (435,480)
                                                     ----------      ------------      ----------     ------------
    Net decrease ..................................     (11,513)     $   (210,652)        (26,153)    $   (435,480)
                                                     ==========      ============      ==========     ============
                                                                CLASS C                          CLASS C
                                                     ----------------------------      ---------------------------
Shares sold .......................................       8,244      $    162,900           6,357     $    101,796
Shares issued upon reinvestment of distributions ..          32               691               7              118
Shares redeemed ...................................      (3,583)          (69,423)         (9,842)        (164,051)
                                                     ----------      ------------      ----------     ------------
    Net increase (decrease) .......................       4,693      $     94,168          (3,478)    $    (62,137)
                                                     ==========      ============      ==========     ============


9.  INDEMNIFICATIONS.  The Fund enters into  contracts that contain a variety of
indemnifications.  The Fund's  maximum  exposure  under  these  arrangements  is
unknown.  However, the Fund has not had prior claims or losses pursuant to these
contracts  and expects the risk of loss to be remote.

10. OTHER MATTERS. The Adviser  and/or  affiliates  received  subpoenas from the
Attorney General of the State of New York and the SEC requesting  information on
mutual fund share  trading  practices  involving  certain  funds  managed by the
Adviser.  GAMCO  Investors,   Inc.  ("GAMCO"),  the  Adviser's  parent  company,
responded to these  requests for documents and  testimony.  In June 2006,  GAMCO
began discussions with the SEC regarding a possible resolution of their inquiry.
In February  2007,  the Adviser made an offer of  settlement to the staff of the
SEC for  communication  to the Commission for its  consideration to resolve this
matter.  This offer of settlement is subject to agreement regarding the specific
language of the SEC's administrative order and other settlement documents.  On a
separate matter, in September 2005, the Adviser was informed by the staff of the
SEC that the staff may recommend to the Commission that an administrative remedy
and a monetary penalty be sought from the Adviser in connection with the actions
of two of seven  closed-end  funds  managed by the  Adviser  relating to Section
19(a)  and Rule  19a-1 of the 1940  Act.  These  provisions  require  registered
investment  companies  to provide  written  statements  to  shareholders  when a
dividend is made from a source other than net investment  income.  While the two
closed-end funds sent annual statements and provided other materials  containing
this information, the funds did not send written statements to shareholders with
each  distribution in 2002 and 2003. The Adviser  believes that all of the funds
are now in  compliance.  The Adviser  believes  that these matters would have no
effect on the Fund or any material  adverse effect on the Adviser or its ability
to manage the Fund.

                                       17


THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
Selected data for a share of capital stock outstanding throughout each period:


                                   INCOME FROM INVESTMENT OPERATIONS                DISTRIBUTIONS
                            -----------------------------------------------   -------------------------
                                                     Net
               Net Asset                         Realized and       Total
  Period         Value,            Net            Unrealized        from          Net
   Ended       Beginning       Investment       Gain (Loss) on   Investment   Investment      Total
December 31,   of Period    Income (Loss)(a)      Investments    Operations     Income    Distributions
- ------------   ---------    ----------------     -------------   ----------    --------   -------------
                                                                           
CLASS AAA
  2006          $17.53           $ 0.12              $ 4.95        $ 5.07       $(0.14)      $(0.14)
  2005           17.23             0.16                0.33          0.49        (0.19)       (0.19)
  2004           14.03             0.07                3.21          3.28        (0.08)       (0.08)
  2003            9.83            (0.04)               4.24          4.20           --           --
  2002           13.96            (0.01)              (4.12)        (4.13)          --           --
CLASS A
  2006          $17.51           $ 0.12              $ 4.95        $ 5.07       $(0.15)      $(0.15)
  2005           17.22             0.14                0.35          0.49        (0.20)       (0.20)
  2004           14.03             0.08                3.19          3.27        (0.08)       (0.08)
  2003            9.83            (0.04)               4.24          4.20           --           --
  2002           13.95            (0.00)(c)           (4.12)        (4.12)          --           --
CLASS B
  2006          $17.11           $(0.03)             $ 4.82        $ 4.79           --           --
  2005           16.77             0.01                0.33          0.34           --           --
  2004           13.69            (0.04)               3.12          3.08           --           --
  2003            9.67            (0.13)               4.15          4.02           --           --
  2002           13.83            (0.08)              (4.08)        (4.16)          --           --
CLASS C
  2006          $17.03           $ 0.00(c)           $ 4.77        $ 4.77       $(0.04)      $(0.04)
  2005           16.71             0.04                0.29          0.33        (0.01)       (0.01)
  2004           13.68            (0.06)               3.14          3.08        (0.05)       (0.05)
  2003            9.66            (0.16)               4.18          4.02           --           --
  2002           13.82            (0.08)              (4.08)        (4.16)          --           --



                                                   RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA
                                                   ----------------------------------------------

                             Net Asset             Net Assets      Net
  Period                      Value,                 End of    Investment               Portfolio
   Ended        Redemption    End of      Total      Period      Income    Operating    Turnover
December 31,      Fees(a)     Period     Return+   (in 000's)    (Loss)    Expenses(b)    Rate
- ------------    -----------   ------     -------    --------     -------   -----------    ------
                                                                      
CLASS AAA
  2006            $0.00(c)    $22.46      28.9%     $214,436       0.63%      1.56%         7%
  2005             0.00(c)     17.53       2.8       185,870       0.92       1.59          4
  2004             0.00(c)     17.23      23.4       209,043       0.49       1.62         15
  2003             0.00(c)     14.03      42.7       185,719      (0.38)      1.62         11
  2002               --         9.83     (29.6)      139,455      (0.05)      1.66          8
CLASS A
  2006            $0.00(c)    $22.43      29.0%     $  1,170       0.64%      1.56%         7%
  2005             0.00(c)     17.51       2.8           735       0.83       1.59          4
  2004             0.00(c)     17.22      23.3           598       0.52       1.62         15
  2003             0.00(c)     14.03      42.7           421      (0.38)      1.62         11
  2002               --         9.83     (29.5)          372      (0.05)      1.66          8
CLASS B
  2006            $0.00(c)    $21.90      28.0%     $    291      (0.17)%     2.31%         7%
  2005             0.00(c)     17.11       2.0           425       0.09       2.33          4
  2004             0.00(c)     16.77      22.5           855      (0.25)      2.37         15
  2003             0.00(c)     13.69      41.6           817      (1.13)      2.37         11
  2002               --         9.67     (30.1)          610      (0.80)      2.41          8
CLASS C
  2006            $0.00(c)    $21.76      28.0%     $    351      (0.02)%     2.31%         7%
  2005             0.00(c)     17.03       2.0           195       0.26       2.34          4
  2004             0.00(c)     16.71      22.5           249      (0.44)      2.37         15
  2003             0.00(c)     13.68      41.6            94      (1.13)      2.37         11
  2002               --         9.66     (30.1)          252      (0.80)      2.41          8

- --------------
  +  Total return represents  aggregate  total return of a  hypothetical  $1,000
     investment at the beginning of the period and sold at the end of the period
     including reinvestment  of  distributions  and does not reflect  applicable
     sales charges.
 (a) Per share amounts have been calculated using the average shares outstanding
     method.
 (b) The Fund incurred  interest  expense during the fiscal years ended December
     31, 2005,  2004, 2003, and 2002. If interest expense had not been incurred,
     the ratio of  operating  expenses  to average  net  assets  would have been
     1.58%,  1.61%, 1.61%, and 1.64% (Class AAA), 1.59%, 1.61%, 1.61%, and 1.64%
     (Class A),  2.33%,  2.36%,  2.36%,  and 2.39% (Class B), and 2.34%,  2.36%,
     2.36%,  and 2.39%  (Class  C),  respectively.  For the  fiscal  year  ended
     December 31, 2006, interest expense was minimal.
 (c) Amount represents less than $0.005 per share.

                 See accompanying notes to financial statements.

                                       18


THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
- --------------------------------------------------------------------------------

To the Shareholders and Board of Directors of
GAMCO Global Series Funds, Inc.

We have audited the accompanying statement of assets and liabilities,  including
the schedule of investments,  of The GAMCO Global  Telecommunications  Fund (the
"Fund") (formerly The Gabelli Global Telecommunications Fund), a series of GAMCO
Global Series Funds,  Inc.,  (formerly Gabelli Global Series Funds,  Inc.) as of
December 31, 2006,  and the related  statement of  operations  for the year then
ended,  the statements of changes in net assets for each of the two years in the
period then ended,  and the financial  highlights  for each of the four years in
the period then ended. These financial  statements and financial  highlights are
the responsibility of the Fund's management. Our responsibility is to express an
opinion on these  financial  statements  and financial  highlights  based on our
audits.  The  financial  highlights  for the year ended  December  31, 2002 were
audited by other  auditors  whose  report dated  January 31, 2003,  expressed an
unqualified opinion on those financial highlights.

We conducted our audits in accordance  with the standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements and financial highlights are free of material  misstatement.  We were
not engaged to perform an audit of the Fund's  internal  control over  financial
reporting.  Our audits included consideration of internal control over financial
reporting as a basis for designing audit  procedures that are appropriate in the
circumstances,  but  not  for  the  purpose  of  expressing  an  opinion  on the
effectiveness  of  the  Fund's  internal   control  over  financial   reporting.
Accordingly,  we express no such opinion. An audit also includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements and financial  highlights,  assessing the accounting  principles used
and  significant  estimates  made by  management,  and  evaluating  the  overall
financial  statement  presentation.  Our  procedures  included  confirmation  of
securities  owned as of December 31,  2006,  by  correspondence  with the Fund's
custodian.  We  believe  that our  audits  provide  a  reasonable  basis for our
opinion.

In our opinion,  the financial  statements and financial  highlights referred to
above present fairly, in all material  respects,  the financial  position of The
GAMCO Global  Telecommunications  Fund, a series of GAMCO Global  Series  Funds,
Inc.,  at December 31,  2006,  the results of its  operations  for the year then
ended,  the  changes  in its net  assets for each of the two years in the period
then  ended,  and the  financial  highlights  for each of the four  years in the
period  then  ended,  in  conformity  with U.S.  generally  accepted  accounting
principles.

                                                           /s/ ERNST & YOUNG LLP

Philadelphia, Pennsylvania
February 16, 2007

                                       19


                    THE GAMCO GLOBAL TELECOMMUNICATIONS FUND

BOARD CONSIDERATION AND RE-APPROVAL OF INVESTMENT ADVISORY AGREEMENT (UNAUDITED)

During the six months ended  December  31,  2006,  the Board of Directors of the
Corporation  approved the continuation of the investment advisory agreement with
the Adviser  for the Fund on the basis of the  recommendation  by the  directors
(the "Independent Board Members") who are not "interested  persons" of the Fund.
The  following   paragraphs  summarize  the  material  information  and  factors
considered  by the  Independent  Board  Members  as  well as  their  conclusions
relative  to  such  factors.

NATURE, EXTENT AND QUALITY OF SERVICES. The Independent Board Members considered
information  regarding the Fund's portfolio  managers,  the depth of the analyst
pool available to the Adviser and the Fund's  portfolio  managers,  the scope of
supervisory,  administrative,  shareholder,  and other  services  supervised  or
provided  by the  Adviser,  and the  absence  of  significant  service  problems
reported to the Board.  The  Independent  Board  Members  noted the  experience,
length of service, and reputation of the Fund's portfolio managers.

INVESTMENT  PERFORMANCE.  The  Independent  Board  Members  reviewed  the short,
medium,  and  long-term  performance  of the Fund  against  a peer  group of all
telecommunications  funds,  noting that the Fund's performance was in the middle
of its peer  group for the one and three year  periods  and in the top third for
the five year period.

PROFITABILITY. The Independent Board Members reviewed summary data regarding the
profitability  of the Fund to the  Adviser  both with a pro rata  administrative
charge  and with a  standalone  administrative  charge.  The  Independent  Board
Members  also  noted  that  a  substantial   portion  of  the  Fund's  portfolio
transactions  were executed by an affiliated  broker of the Adviser and that the
affiliated  broker  received  distribution  fees  and  minor  amounts  of  sales
commissions.

ECONOMIES OF SCALE. The Independent  Board Members  discussed the major elements
of the  Adviser's  cost  structure  and the  relationship  of those  elements to
potential  economies of scale and reviewed  rudimentary data suggesting that 20%
growth in the Fund  would not  produce  meaningful  economies  of scale that the
shareholders would not participate in.


SHARING OF ECONOMIES OF SCALE.  The  Independent  Board  Members  noted that the
investment  advisory  fee  schedule  for the Fund does not take into account any
potential economies of scale that may develop.

SERVICE AND COST COMPARISONS. The Independent Board Members compared the expense
ratios of the investment advisory fee, other expenses, and total expenses of the
Fund to similar  expense  ratios of the Lipper  peer group of  telecommunication
funds and noted that the  Adviser's  advisory  fee  includes  substantially  all
administrative  services of the Fund as well as investment  advisory services of
the Adviser.  The Independent  Board Members noted that the Fund's expense ratio
was above average and the Fund's size was below average  within this group.  The
Independent  Board Members  compared the advisory fee to the fee for other funds
managed by the  Adviser  but did not  compare  it to the fees of other  types of
accounts managed by an affiliated  adviser.

CONCLUSIONS.  The  Independent  Board  Members  concluded  that the Fund enjoyed
highly experienced portfolio management services, good ancillary services, and a
performance  record that was understandable in relation to the disclosure in the
Fund's  prospectus  and periodic  shareholder  reports as to its purpose and the
outlook of the portfolio managers.  The Independent Board Members also concluded
that the Fund's expense ratios and the  profitability to the Adviser of managing
the Fund were  reasonable,  and that  economies of scale were not a  significant
factor in their  thinking at this time.  The  Independent  Board Members did not
view the  potential  profitability  of  ancillary  services as material to their
decision.  On the basis of the foregoing and without assigning particular weight
to any single conclusion,  the Independent Board Members determined to recommend
continuation  of  the  investment  advisory  agreement  to  the  full  Board  of
Directors.

                                       20


THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
ADDITIONAL FUND INFORMATION (UNAUDITED)
- --------------------------------------------------------------------------------

The business and affairs of the  Corporation  are managed under the direction of
the Corporation's  Board of Directors.  Information  pertaining to the Directors
and officers of the Corporation is set forth below. The Corporation's  Statement
of  Additional  Information  includes  additional  information  about the Fund's
Directors and is available, without charge, upon request, by calling 800-GABELLI
(800-422-3554) or by writing to The GAMCO Global  Telecommunications Fund at One
Corporate Center, Rye, NY 10580-1422.


                    TERM OF OFFICE     NUMBER OF
NAME, POSITION(S)    AND LENGTH OF   FUNDS IN FUND
    ADDRESS 1             TIME      COMPLEX OVERSEEN     PRINCIPAL OCCUPATION(S)                     OTHER DIRECTORSHIPS
     AND AGE            SERVED 2       BY DIRECTOR       DURING PAST FIVE YEARS                       HELD BY DIRECTOR 4
- ----------------     ------------   ----------------     ----------------------                      --------------------
                                                                                            
INTERESTED DIRECTORS 3:
- ----------------------
MARIO J. GABELLI       Since 1993          24       Chairman of the Board and Chief Executive      Director of Morgan Group
Director and                                        Officer of GAMCO Investors, Inc. and           Holdings, Inc. (transportation
Chief Investment Officer                            Chief Investment Officer - Value Portfolios    services); Chairman of the
Age: 64                                             of Gabelli Funds, LLC and GAMCO Asset          Board of Lynch Interactive
                                                    Management Inc.; Director/Trustee or Chief     Corporation (multimedia and
                                                    Investment Officer of other registered         communication services
                                                    investment companies in the Gabelli Funds      company)
                                                    complex; Chairman and Chief Executive
                                                    Officer of GGCP, Inc.

JOHN D. GABELLI        Since 1993          10       Senior Vice President of Gabelli &             Director of GAMCO
Director                                            Company, Inc.                                  Investors, Inc.
Age: 62

INDEPENDENT DIRECTORS 5:
- ------------------------
E. VAL CERUTTI         Since 2001           7       Chief Executive Officer of Cerutti             Director of The LGL Group,
Director                                            Consultants, Inc.; Adviser to Iona             Inc. (diversified
Age: 67                                             College Hagan School of Business               manufacturing)

ANTHONY J. COLAVITA    Since 1993          34       Partner in the law firm of                        --
Director                                            Anthony J. Colavita, P.C.
Age: 71

ARTHUR V. FERRARA      Since 2001           7       Former Chairman of the Board and Chief         Director of The Guardian
Director                                            Executive Officer of The Guardian Life         sponsored mutual funds
Age: 76                                             Insurance Company of America
                                                    (1993 - 1995)

WERNER J. ROEDER, MD   Since 1993          23       Medical Director of Lawrence                      --
Director                                            Hospital and practicing private physician
Age: 66

ANTHONIE C. VAN EKRIS  Since 1993          17       Chairman of BALMAC International, Inc.            --
Director                                            (commodities and futures trading)
Age: 72

SALVATORE J. ZIZZA     Since 2004          25       Chairman of Hallmark Electrical Supplies       Director of Hollis-Eden
Director                                            Corp. (distribution of electrical              Pharmaceuticals (biotechnology);
Age: 61                                             supplies)                                      Director of Earl Scheib, Inc.
                                                                                                   (automotive services)


                                       21


THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
ADDITIONAL FUND INFORMATION (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------


                     TERM OF OFFICE
NAME, POSITION(S)     AND LENGTH OF
    ADDRESS 1              TIME                         PRINCIPAL OCCUPATION(S)
     AND AGE             SERVED 2                       DURING PAST FIVE YEARS
- -----------------     ------------                      ----------------------
                                          
OFFICERS:
- --------
BRUCE N. ALPERT        Since 2003               Executive Vice President and Chief Operating Officer of Gabelli Funds, LLC
President                                       since 1988 and an officer of all of the registered investment companies
Age: 55                                         in the Gabelli Funds complex. Director and President of Gabelli Advisers, Inc.
                                                since 1998

JAMES E. MCKEE         Since 1995               Vice President, General Counsel and Secretary of GAMCO Investors, Inc.
Secretary                                       since 1999 and GAMCO Asset Management Inc. since 1993; Secretary
Age: 43                                         of all of the registered investment companies in the Gabelli Funds complex

AGNES MULLADY          Since 2006               Treasurer of all of the registered investment companies in the Gabelli Funds
Treasurer                                       complex; Senior Vice President of U.S. Trust Company, N.A. and Treasurer
Age: 48                                         and Chief Financial Officer of Excelsior Funds from 2004 through 2005;
                                                Chief Financial Officer of AMIC Distribution Partners from 2002 through 2004;
                                                Controller of Reserve Management Corporation and Reserve Partners, Inc. and
                                                Treasurer of Reserve Funds from 2000 through 2002

PETER D. GOLDSTEIN     Since 2004               Director of Regulatory Affairs at GAMCO Investors, Inc. since 2004; Chief
Chief Compliance Officer                        Compliance Officer of all of the registered investment companies in the
Age: 53                                         Gabelli Funds complex; Vice President of Goldman Sachs Asset Management
                                                from 2000 through 2004

- -----------------
 1 Address: One Corporate Center, Rye, NY 10580-1422, unless otherwise noted.
 2 Each Director  will hold office for an indefinite  term until the earliest of
   (i) the next  meeting of  shareholders,  if any,  called  for the  purpose of
   considering  the  election  or  re-election  of such  Director  and until the
   election and  qualification of his or her successor,  if any, elected at such
   meeting,  or (ii) the date a Director  resigns or  retires,  or a Director is
   removed by the Board of Directors or  shareholders,  in  accordance  with the
   Corporation's  By-Laws and Articles of Incorporation.  Each officer will hold
   office for an indefinite  term until the date he or she resigns or retires or
   until his or her successor is elected and qualified.
 3 "Interested  person" of the Corporation as  defined in the 1940 Act.  Messrs.
   Gabelli  are  each   considered   an  "interested  person" because  of  their
   affiliation   with  Gabelli  Funds,  LLC  which  acts  as  the  Corporation's
   investment adviser.  Mario J. Gabelli and John D. Gabelli  are brothers.
 4 This column includes only  directorships  of companies  required to report to
   the SEC under the Securities  Exchange Act of 1934 (i.e. public companies) or
   other investment companies registered under the 1940 Act.
 5 Directors  who  are  not  interested  persons  are  considered  "Independent"
   Directors.

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

                   2006 TAX NOTICE TO SHAREHOLDERS (Unaudited)

   For the fiscal year ended  December 31, 2006,  the Fund paid to  shareholders
   ordinary  income  dividends  (comprised of net  investment  income)  totaling
   $0.137,  $0.150,  and $0.043  per share for Class AAA,  Class A, and Class C,
   respectively.  For the  fiscal  year ended  December  31,  2006,  100% of the
   ordinary  income  dividend  qualifies  for the  dividend  received  deduction
   available to corporations  and 100% of the ordinary income  distribution  was
   qualified dividend income.

   U.S. GOVERNMENT INCOME:
   The percentage of the ordinary income dividend paid by the Fund during fiscal
   year 2006 which was derived from U.S.  Treasury  securities  was 5.40%.  Such
   income is exempt  from  state and  local  tax in all  states.  However,  many
   states,  including  New  York and  California,  allow a tax  exemption  for a
   portion of the income  earned only if a mutual fund has invested at least 50%
   of its assets at the end of each  quarter of the Fund's  fiscal  year in U.S.
   Government securities.  The GAMCO Global Telecommunications Fund did not meet
   this strict  requirement in 2006. Due to the diversity in state and local tax
   law, it is  recommended  that you consult your personal tax advisor as to the
   applicability of the information provided to your specific situation.
- --------------------------------------------------------------------------------

                                       22


- --------------------------------------------------------------------------------
     GABELLI FUNDS AND YOUR PERSONAL PRIVACY
================================================================================

     WHO ARE WE?
     The  Gabelli/GAMCO and Westwood Funds are investment  companies  registered
     with the Securities and Exchange  Commission  under the Investment  Company
     Act of 1940.  We are managed by Gabelli  Funds,  LLC and Gabelli  Advisers,
     Inc., which are affiliated with GAMCO Investors, Inc. GAMCO Investors, Inc.
     is a publicly held company that has  subsidiaries  that provide  investment
     advisory or brokerage services for a variety of clients.

     WHAT KIND OF NON-PUBLIC INFORMATION DO WE COLLECT ABOUT YOU IF YOU BECOME A
     SHAREHOLDER?
     If you apply to open an  account  directly  with us,  you will be giving us
     some non-public  information about yourself.  The non-public information we
     collect about you is:

     o  INFORMATION  YOU GIVE US ON YOUR  APPLICATION  FORM.  This could include
        your name,  address,  telephone  number,  social security  number,  bank
        account number, and other information.

     o  INFORMATION  ABOUT YOUR  TRANSACTIONS WITH US, ANY TRANSACTIONS WITH OUR
        AFFILIATES,  AND  TRANSACTIONS  WITH  THE  ENTITIES  WE HIRE TO  PROVIDE
        SERVICES TO YOU.  This would include  information  about the shares that
        you buy or redeem.  If we hire someone else to provide  services--like a
        transfer  agent--we will also have  information  about the  transactions
        that you conduct through them.

     WHAT INFORMATION DO WE DISCLOSE AND TO WHOM DO WE DISCLOSE IT?
     We do not disclose any non-public personal  information about our customers
     or former  customers  to anyone  other  than our  affiliates,  our  service
     providers who need to know such information,  and as otherwise permitted by
     law. If you want to find out what the law permits, you can read the privacy
     rules adopted by the Securities and Exchange Commission. They are in volume
     17 of the Code of Federal Regulations, Part 248. The Commission often posts
     information about its regulations on its web site, www.sec.gov.

     WHAT DO WE DO TO PROTECT YOUR PERSONAL INFORMATION?
     We restrict  access to  non-public  personal  information  about you to the
     people who need to know that  information  in order to provide  services to
     you or the Fund and to ensure that we are complying with the laws governing
     the securities business. We maintain physical,  electronic,  and procedural
     safeguards to keep your personal information confidential.
- --------------------------------------------------------------------------------


                             GABELLI FAMILY OF FUNDS

VALUE _______________________________________
GABELLI ASSET FUND
Seeks to invest primarily in a diversified portfolio of common stocks selling at
significant  discounts  to  their  private  market  value.  The  Fund's  primary
objective is growth of capital. (MULTICLASS)
                                        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

GABELLI BLUE CHIP VALUE FUND
Seeks long term growth of capital  through  investment  primarily  in the common
stocks of established  companies which are temporarily out of favor.  The fund's
objective  is to  identify a catalyst or sequence of events that will return the
company to a higher value.
(MULTICLASS)                              PORTFOLIO MANAGER: BARBARA MARCIN, CFA

WESTWOOD EQUITY FUND
Seeks to invest  primarily in the common stock of  well-seasoned  companies that
have  recently  reported  positive  earnings  surprises  and are  trading  below
Westwood's  proprietary  growth rate estimates.  The Fund's primary objective is
capital appreciation.
(MULTICLASS)                                   PORTFOLIO MANAGER: SUSAN M. BYRNE

FOCUSED VALUE _______________________________
GABELLI VALUE FUND
Seeks to invest in  securities  of  companies  believed to be  undervalued.  The
Fund's primary objective is long-term capital appreciation. (MULTICLASS)
                                        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

SMALL CAP VALUE _____________________________
GABELLI SMALL CAP FUND
Seeks  to  invest  primarily  in  common  stock  of  smaller  companies  (market
capitalizations  at the time of investment of $2 billion  or less)  believed  to
have rapid revenue and earnings growth potential. The  Fund's primary  objective
is capital appreciation.
(MULTICLASS)                            PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

WESTWOOD SMALLCAP EQUITY FUND
Seeks to invest primarily in smaller  capitalization  equity securities - market
caps of $2.5 billion or less. The Fund's primary  objective is long-term capital
appreciation. (MULTICLASS)                                          TEAM MANAGED

GABELLI WOODLAND SMALL CAP VALUE FUND
Seeks to invest  primarily  in the common  stocks of smaller  companies  (market
capitalizations generally less than $3.0  billion) believed  to  be  undervalued
with shareholder oriented management teams that are employing strategies to grow
the company's value. The Fund's primary objective is capital appreciation.
(MULTICLASS)                          PORTFOLIO MANAGER: ELIZABETH M. LILLY, CFA

GROWTH ______________________________________
GAMCO GROWTH FUND
Seeks to invest  primarily in large cap stocks believed to have  favorable,  yet
undervalued,  prospects for earnings  growth.  The Fund's  primary  objective is
capital appreciation. (MULTICLASS)        PORTFOLIO MANAGER: HOWARD F. WARD, CFA

GAMCO INTERNATIONAL GROWTH FUND
Seeks to invest in the equity  securities  of  foreign  issuers  with  long-term
capital   appreciation    potential.    The   Fund   offers   investors   global
diversification. (MULTICLASS)                    PORTFOLIO MANAGER: CAESAR BRYAN

AGGRESSIVE GROWTH ___________________________
GAMCO GLOBAL GROWTH FUND
Seeks capital appreciation through a disciplined  investment program focusing on
the globalization and interactivity of the world's marketplace. The Fund invests
in  companies  at the  forefront  of  accelerated  growth.  The  Fund's  primary
objective is capital appreciation. (MULTICLASS)                     TEAM MANAGED

MICRO-CAP ___________________________________
WESTWOOD MIGHTY MITES(SM) FUND
Seeks to invest in micro-cap companies that have market  capitalizations of $300
million or less. The Fund's primary objective is long-term capital appreciation.
(MULTICLASS)                                                        TEAM MANAGED

EQUITY INCOME _______________________________
GABELLI EQUITY INCOME FUND
Seeks to invest primarily in equity securities with above market average yields.
The Fund pays monthly  dividends  and seeks a high level of total return with an
emphasis on income. (MULTICLASS)        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

WESTWOOD BALANCED FUND
Seeks to invest in a balanced and diversified portfolio of stocks and bonds. The
Fund's primary objective is both capital appreciation and current income.
(MULTICLASS)                            CO-PORTFOLIO MANAGERS: SUSAN M. BYRNE
                                                               MARK FREEMAN, CFA

WESTWOOD INCOME FUND
Seeks to  provide   a high level of  current income as well as long-term capital
appreciation  by  investing  in   income   producing  equity  and  fixed  income
securities. (MULTICLASS)                                            TEAM MANAGED

SPECIALTY EQUITY ____________________________
GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
Seeks to invest  principally in bonds and preferred stocks which are convertible
into  common  stock of  foreign  and  domestic  companies.  The  Fund's  primary
objective is total return  through a combination  of current  income and capital
appreciation. (MULTICLASS)                                          TEAM MANAGED

GAMCO GLOBAL OPPORTUNITY FUND
Seeks to invest in common stock of companies which have rapid growth in revenues
and  earnings  and  potential  for above  average  capital  appreciation  or are
undervalued. The Fund's primary objective is capital appreciation.
(MULTICLASS)                                                        TEAM MANAGED

SECTOR ______________________________________
GAMCO GLOBAL TELECOMMUNICATIONS FUND
Seeks to invest in telecommunications companies throughout the world - targeting
undervalued  companies with strong  earnings and cash flow dynamics.  The Fund's
primary objective is capital appreciation. (MULTICLASS)             TEAM MANAGED

GAMCO GOLD FUND
Seeks to invest in a global  portfolio of equity  securities  of gold mining and
related  companies.  The Fund's  objective  is long-term  capital  appreciation.
Investment in gold stocks is considered speculative and is affected by a variety
of world-wide economic, financial, and political factors. (MULTICLASS)
                                                 PORTFOLIO MANAGER: CAESAR BRYAN

GABELLI UTILITIES FUND
Seeks to provide a high level of total return  through a combination  of capital
appreciation and current income. (MULTICLASS)                       TEAM MANAGED

MERGER AND ARBITRAGE ________________________
GABELLI ABC FUND
Seeks to invest in securities with attractive  opportunities for appreciation or
investment  income.  The Fund's  primary  objective  is total  return in various
market conditions without excessive risk of capital loss.
(NO-LOAD)                               PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

CONTRARIAN___________________________________
GAMCO MATHERS FUND
Seeks  long-term  capital  appreciation  in various  market  conditions  without
excessive risk of capital loss. (NO-LOAD)
                                        PORTFOLIO MANAGER: HENRY VAN DER EB, CFA

COMSTOCK CAPITAL VALUE FUND
Seeks capital  appreciation and current income.  The Fund may use either long or
short positions to achieve its objective.
(MULTICLASS)                               PORTFOLIO MANAGER: MARTIN WEINER, CFA

COMSTOCK STRATEGY FUND
The Fund emphasizes investments in debt securities,  which maximize total return
in light of credit risk,  interest rate risk, and the risk  associated  with the
length of maturity of  debt instruments. (MULTICLASS)
                                           PORTFOLIO MANAGER: MARTIN WEINER, CFA

FIXED INCOME ________________________________
WESTWOOD INTERMEDIATE BOND FUND
Seeks to invest in a diversified portfolio of bonds with various maturities. The
Fund's primary objective is total return.
(MULTICLASS)                                PORTFOLIO MANAGER: MARK FREEMAN, CFA

CASH MANAGEMENT-MONEY MARKET ________________
GABELLI U.S. TREASURY MONEY MARKET FUND
Seeks to invest exclusively in short-term U.S. Treasury  securities.  The Fund's
primary  objective  is to  provide  high  current  income  consistent  with  the
preservation of principal and liquidity. (NO-LOAD)
                                             PORTFOLIO MANAGER: JUDITH A. RANERI

AN INVESTMENT IN THE ABOVE MONEY MARKET FUND  IS NEITHER  INSURED NOR GUARANTEED
BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY GOVERNMENT AGENCY.  ALTHOUGH
THE FUND SEEKS TO PRESERVE THE VALUE OF YOUR  INVESTMENT AT $1.00 PER SHARE,  IT
IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE FUND.

THE  FUNDS MAY  INVEST IN  FOREIGN SECURITIES WHICH INVOLVE RISKS NOT ORDINARILY
ASSOCIATED WITH INVESTMENTS IN DOMESTIC ISSUES,  INCLUDING CURRENCY FLUCTUATION,
ECONOMIC, AND POLITICAL RISKS.

TO RECEIVE A PROSPECTUS, CALL 800-GABELLI (422-3554). INVESTORS SHOULD CAREFULLY
  CONSIDER THE INVESTMENT OBJECTIVES, RISKS, CHARGES, AND EXPENSES OF THE FUND
           BEFORE INVESTING. THE PROSPECTUS CONTAINS MORE INFORMATION
   ABOUT THIS AND OTHER MATTERS AND SHOULD BE READ CAREFULLY BEFORE INVESTING.


                         GAMCO Global Series Funds, Inc.
                    THE GAMCO GLOBAL TELECOMMUNICATIONS FUND
                              One Corporate Center
                            Rye, New York 10580-1422
                                   800-GABELLI
                                  800-422-3554
                                FAX: 914-921-5118
                            WEBSITE: WWW.GABELLI.COM
                            E-MAIL: INFO@GABELLI.COM
                  Net Asset Value per share available daily by
                       calling 800-GABELLI after 6:00 P.M.

                               BOARD OF DIRECTORS

Mario J. Gabelli, CFA                                John D. Gabelli
CHAIRMAN AND CHIEF                                   SENIOR VICE PRESIDENT
EXECUTIVE OFFICER                                    GABELLI & COMPANY, INC.
GAMCO INVESTORS, INC.

E. Val Cerutti                                       Werner J. Roeder, MD
CHIEF EXECUTIVE OFFICER                              MEDICAL DIRECTOR
CERUTTI CONSULTANTS, INC.                            LAWRENCE HOSPITAL

Anthony J. Colavita                                  Anthonie C. van Ekris
ATTORNEY-AT-LAW                                      CHAIRMAN
ANTHONY J. COLAVITA, P.C.                            BALMAC INTERNATIONAL, INC.

Arthur V. Ferrara                                    Salvatore J. Zizza
FORMER CHAIRMAN AND                                  CHAIRMAN
CHIEF EXECUTIVE OFFICER                              HALLMARK ELECTRICAL
GUARDIAN LIFE INSURANCE                              SUPPLIES CORP.
COMPANY OF AMERICA

                                    OFFICERS

Bruce N. Alpert                                      James E. McKee
PRESIDENT                                            SECRETARY

Agnes Mullady                                        Peter D. Goldstein
TREASURER                                            CHIEF COMPLIANCE OFFICER

                                   DISTRIBUTOR
                             Gabelli & Company, Inc.

                  CUSTODIAN, TRANSFER AGENT, AND DIVIDEND AGENT
                       State Street Bank and Trust Company

                                  LEGAL COUNSEL
                    Skadden, Arps, Slate, Meagher & Flom LLP







- --------------------------------------------------------------------------------
This report is submitted for the general  information of the shareholders of The
GAMCO Global  Telecommunications  Fund. It is not authorized for distribution to
prospective investors unless preceded or accompanied by an effective prospectus.
- --------------------------------------------------------------------------------

GAB401Q406SR

                                                         [GRAPHIC OMITTED]  E  P
                                                         Gabelli Triangle   P  M
                                                            MANAGEMENT      S  V
                                                            CASH FLOW
                                                             RESEARCH

                                    THE
                                    GAMCO
                                    GLOBAL
                                    TELECOMMUNICATIONS
                                    FUND


                                                                   ANNUAL REPORT
                                                               DECEMBER 31, 2006


ITEM 2. CODE OF ETHICS.

     (a)  The  registrant,  as of the end of the period  covered by this report,
          has  adopted  a code  of  ethics  that  applies  to  the  registrant's
          principal executive officer,  principal  financial officer,  principal
          accounting  officer  or  controller,  or  persons  performing  similar
          functions, regardless of whether these individuals are employed by the
          registrant or a third party.

     (c)  There  have been no  amendments,  during  the  period  covered by this
          report,  to a  provision  of the code of ethics  that  applies  to the
          registrant's principal executive officer, principal financial officer,
          principal  accounting  officer or  controller,  or persons  performing
          similar  functions,   regardless  of  whether  these  individuals  are
          employed by the  registrant or a third party,  and that relates to any
          element of the code of ethics description.

     (d)  The  registrant  has not granted any  waivers,  including  an implicit
          waiver,  from a provision  of the code of ethics  that  applies to the
          registrant's principal executive officer, principal financial officer,
          principal  accounting  officer or  controller,  or persons  performing
          similar  functions,   regardless  of  whether  these  individuals  are
          employed by the  registrant  or a third party,  that relates to one or
          more  of  the  items  set  forth  in  paragraph  (b)  of  this  item's
          instructions.


ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

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


ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

AUDIT FEES

     (a)  The  aggregate  fees billed for each of the last two fiscal  years for
          professional  services  rendered by the principal  accountant  for the
          audit of the registrant's annual financial statements or services that
          are normally  provided by the accountant in connection  with statutory
          and  regulatory  filings or  engagements  for those  fiscal  years are
          $119,700 for 2005 and $124,000 for 2006.

AUDIT-RELATED FEES

     (b)  The  aggregate  fees  billed in each of the last two fiscal  years for
          assurance and related  services by the principal  accountant  that are
          reasonably related to the performance of the audit of the registrant's
          financial  statements and are not reported under paragraph (a) of this
          Item are $0 for 2005 and $0 for 2006.


TAX FEES

     (c)  The  aggregate  fees  billed in each of the last two fiscal  years for
          professional  services  rendered by the principal  accountant  for tax
          compliance,  tax advice,  and tax planning are $14,400 for 2005 and $0
          for 2006.  Tax fees  represent  tax  compliance  services  provided in
          connection with the review of the Registrant's tax returns.

ALL OTHER FEES

     (d) The  aggregate  fees  billed in each of the last two  fiscal  years for
         products and services provided by the principal accountant,  other than
         the services reported in paragraphs (a) through (c) of this Item are $0
         for 2005 and $0 for 2006.

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

         Pre-Approval Policies and Procedures. The Audit Committee ("Committee")
         of the registrant is responsible  for  pre-approving  (i) all audit and
         permissible  non-audit  services  to be  provided  by  the  independent
         registered  public  accounting  firm to the  registrant  and  (ii)  all
         permissible  non-audit  services  to be  provided  by  the  independent
         registered public  accounting firm to the Adviser,  Gabelli Funds, LLC,
         and any  affiliate of Gabelli  Funds,  LLC  ("Gabelli")  that  provides
         services to the  registrant  (a  "Covered  Services  Provider")  if the
         independent  registered public  accounting  firm's  engagement  related
         directly to the operations and financial  reporting of the  registrant.
         The Committee may delegate its  responsibility  to pre-approve any such
         audit and  permissible  non-audit  services to the  Chairperson  of the
         Committee,  and the  Chairperson  must report to the Committee,  at its
         next regularly  scheduled meeting after the Chairperson's  pre-approval
         of such  services,  his or her  decision(s).  The  Committee  may  also
         establish   detailed   pre-approval   policies   and   procedures   for
         pre-approval  of such  services in  accordance  with  applicable  laws,
         including the delegation of some or all of the Committee's pre-approval
         responsibilities  to the  other  persons  (other  than  Gabelli  or the
         registrant's   officers).   Pre-approval   by  the   Committee  of  any
         permissible  non-audit  services  is not  required  so long as: (i) the
         permissible non-audit services were not recognized by the registrant at
         the time of the  engagement  to be  non-audit  services;  and (ii) such
         services are promptly  brought to the  attention of the  Committee  and
         approved by the Committee or Chairperson prior to the completion of the
         audit.

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

                           (b) Not applicable

                           (c) 100%

                           (d) Not applicable

     (f)  The  percentage  of  hours  expended  on  the  principal  accountant's
          engagement to audit the registrant's financial statements for the most
          recent fiscal year that were  attributed to work  performed by persons
          other than the principal accountant's  full-time,  permanent employees
          was 0%.


     (g) The aggregate non-audit fees billed by the registrant's  accountant for
         services  rendered to the registrant,  and rendered to the registrant's
         investment  adviser  (not  including  any  sub-adviser  whose  role  is
         primarily portfolio management and is subcontracted with or overseen by
         another investment adviser), and any entity controlling, controlled by,
         or under common control with the adviser that provides ongoing services
         to the  registrant  for  each  of the  last  two  fiscal  years  of the
         registrant was $111,400 for 2005 and $73,050 for 2006.

     (h) The  registrant's  audit  committee  of  the  board  of  directors  has
         considered  whether  the  provision  of  non-audit  services  that were
         rendered to the  registrant's  investment  adviser (not  including  any
         sub-adviser  whose  role  is  primarily  portfolio  management  and  is
         subcontracted with or overseen by another investment adviser),  and any
         entity  controlling,  controlled  by, or under common  control with the
         investment  adviser that provides  ongoing  services to the  registrant
         that were not  pre-approved  pursuant to paragraph  (c)(7)(ii)  of Rule
         2-01 of Regulation  S-X is compatible  with  maintaining  the principal
         accountant's independence.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.

ITEM 6. SCHEDULE OF INVESTMENTS.

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

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

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.

There have been no material  changes to the procedures by which the shareholders
may  recommend  nominees to the  registrant's  Board of  Directors,  where those
changes were  implemented  after the  registrant  last  provided  disclosure  in
response to the  requirements  of Item  407(c)(2)(iv)  of Regulation S-K (17 CFR
229.407) (as required by Item  22(b)(15) of Schedule 14A (17 CFR  240.14a-101)),
or this Item.

ITEM 11. CONTROLS AND PROCEDURES.

     (a)  The registrant's principal executive and principal financial officers,
          or persons  performing  similar  functions,  have  concluded  that the
          registrant's  disclosure  controls and  procedures (as defined in Rule
          30a-3(c)  under the  Investment  Company Act of 1940,  as amended (the
          "1940 Act") (17 CFR 270.30a-3(c))) are effective,  as of a date within
          90 days of the filing date of the report that includes the  disclosure
          required  by this  paragraph,  based  on  their  evaluation  of  these
          controls and  procedures  required by Rule 30a-3(b) under the 1940 Act
          (17 CFR  270.30a-3(b))  and Rules  13a-15(b)  or  15d-15(b)  under the
          Securities  Exchange Act of 1934, as amended (17 CFR  240.13a-15(b) or
          240.15d-15(b)).

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


ITEM 12. EXHIBITS.

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

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

     (a)(3)   Not applicable.

     (b)      Certifications  pursuant  to Rule  30a-2(b) under the 1940 Act and
              Section 906 of the Sarbanes-Oxley Act of 2002 are attached hereto.


                                   SIGNATURES

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

(registrant)    GAMCO Global Series Funds, Inc.
                ----------------------------------------------------------------

By (Signature and Title)*  /s/ Bruce N. Alpert
                         -------------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer


Date              03/01/2007
    ----------------------------------------------------------------------------


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


By (Signature and Title)*  /s/ Bruce N. Alpert
                         -------------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer


Date              03/01/2007
    ----------------------------------------------------------------------------


By (Signature and Title)*  /s/ Agnes Mullady
                         -------------------------------------------------------
                           Agnes Mullady,
                           Principal Financial Officer & Treasurer


Date              03/01/2007
    ----------------------------------------------------------------------------



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