GABELLI CONVERTIBLE SECURITIES FUND INC /DE
N-30D, 2000-08-30
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                                  [GRAPHIC OF LOGO OMITTED]

                                  THE GABELLI
                                  CONVERTIBLE
                                  SECURITIES
                                  FUND, INC.



SEMI-ANNUAL Report
JUNE 30, 2000
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                           [GRAPHIC OF LOGO OMITTED]

Our cover icon represents the  underpinnings of Gabelli.  The Teton mountains in
Wyoming  represent what we believe in in America -- that creativity,  ingenuity,
hard work and a global uniqueness  provide enduring values.  They also stand out
in an increasingly complex, interconnected and interdependent economic world.

INVESTMENT OBJECTIVE:

The Gabelli  Convertible  Securities  Fund,  Inc. is a  closed-end,  diversified
management investment company whose primary objective is to seek a high level of
total return through a combination of current income and capital appreciation by
investing in convertible securities.

                    THIS REPORT IS PRINTED ON RECYCLED PAPER.

<PAGE>
                                             [PHOTO OF MARIO J. GABELLI OMITTED]
                                                       [GRAPHIC OF LOGO OMITTED]
TO OUR SHAREHOLDERS,

      As  hybrid  securities  with  equity  and  fixed  income  characteristics,
convertible  security  performance  is impacted by stock and bond market trends.
With both the stock and bond markets limping through the second quarter of 2000,
convertibles  did not make much  progress.  Buoyed by several  takeovers and the
generally solid performance of our energy and utility investments,  the Fund was
able to post a modest gain.

INVESTMENT PERFORMANCE

      For the  second  quarter  ended June 30,  2000,  The  Gabelli  Convertible
Securities  Fund (the  "Fund") net asset value  ("NAV")  total  return was 0.56%
after adjusting for the $0.20 per share  distribution paid on June 26, 2000. The
Lipper Convertible  Securities Fund Average declined 3.11% over the same period.
The Lipper Average  reflects the average  performance of mutual funds classified
in this particular category.

      The  Fund  was up  1.58%  over  the  trailing  twelve-month  period  after
adjusting for the $1.03 per share in distributions  paid during this period. The
Lipper   Convertible   Securities   Fund  Average  rose  25.73%  over  the  same
twelve-month period.

      For the  five-year  period  ended June 30,  2000,  the Fund's total return
averaged 9.10% annually  versus an average annual total return of 16.24% for the
Lipper  Convertible  Securities  Fund Average.  Since  inception on July 3, 1989
through June 30, 2000, the Fund had a cumulative total return of 176.54%,  which
equates to an average annual total return of 9.69%.

      The Convertible  Securities  Fund's common shares ended the second quarter
at $9.75  per share on the New York  Stock  Exchange,  up 3.33%  for the  second
quarter,  down 4.84% for the past  twelve  months and up 40.61% from its initial
price of  $11.25 on March 31,  1995  after  adjusting  for the  reinvestment  of
dividends totaling $5.195 per share which were paid during this period.

OUR OBJECTIVE

      Our mandate is to preserve and enhance our shareholders'  wealth through a
conservative and disciplined approach to convertible  securities investing.  Our
goal is to generate  profitable  returns in strong markets and protect principal
in weak markets by taking advantage of the unique characteristics of convertible
securities.

      Our Fund is  managed  with the goal of  achieving  a 600-800  basis  point
spread above long-term  treasury yields.  We hope to generate these returns over
the long term. This is the type of performance  that our Fund has been known for
and we  anticipate  will  continue  in  the  future.  Of  course,  there  are no
guarantees.

<PAGE>

INVESTMENT RESULTS (a)(c)
--------------------------------------------------------------------------------

                                                 Quarter
                               ------------------------------------
                                 1st       2nd       3rd       4th      Year
                                 ---       ---       ---       ---      ----
  2000:   Net Asset Value ...  $11.32    $11.16      --        --        --
          Total Return ......    1.3%      0.6%      --        --        --
--------------------------------------------------------------------------------
  1999:   Net Asset Value ...  $11.45    $12.13    $11.67    $11.40    $11.40
          Total Return ......    1.8%      7.8%     (2.0)%     1.7%      9.4%
--------------------------------------------------------------------------------
  1998:   Net Asset Value ...  $11.87    $11.66    $10.96    $11.45    $11.45
          Total Return ......    5.3%      0.0%     (4.2)%     7.4%      8.3%
--------------------------------------------------------------------------------
  1997:   Net Asset Value ...  $11.13    $11.38    $11.81    $11.48    $11.48
          Total Return ......    1.7%      3.5%      5.0%      2.8%     13.5%
--------------------------------------------------------------------------------
  1996:   Net Asset Value ...  $11.28    $11.33    $11.23    $11.08    $11.08
          Total Return ......    3.6%      1.6%      0.3%      2.6%      8.4%
--------------------------------------------------------------------------------
  1995:   Net Asset Value ...  $11.14    $11.51    $11.64    $11.01    $11.01
          Total Return ......    5.1%      5.2%      3.0%      1.1%     15.0%
--------------------------------------------------------------------------------
  1994:   Net Asset Value ...  $11.54    $11.39    $11.60    $10.60    $10.60
          Total Return ......    0.2%     (1.3)%     1.8%     (0.9)%    (0.2)
--------------------------------------------------------------------------------
  1993:   Net Asset Value ...  $12.07    $12.36    $12.75    $11.52    $11.52
          Total Return ......    5.4%      2.4%      3.2%      1.5%     13.1%
--------------------------------------------------------------------------------
  1992:   Net Asset Value ...  $11.29    $11.52    $11.90    $11.45    $11.45
          Total Return ......    3.5%      2.0%      3.3%      3.6%     13.0%
--------------------------------------------------------------------------------
  1991:   Net Asset Value ...  $11.06    $11.27    $11.57    $10.91    $10.91
          Total Return ......    5.6%      1.9%      2.7%      1.8%     12.5%
--------------------------------------------------------------------------------
  1990:   Net Asset Value ...  $10.56    $10.68    $10.56    $10.47    $10.47
          Total Return ......    1.5%      2.1%     (1.1)%     3.8%      6.3%
--------------------------------------------------------------------------------
  1989:   Net Asset Value ...     --        --     $10.54    $10.51    $10.51
          Total Return ......     --        --       5.4%(b)   0.8%      6.3%(b)
--------------------------------------------------------------------------------



--------------------------------------------------------------
           Average Annual Returns - June 30, 2000 (a)
           ------------------------------------------
   1 Year .......................................    1.58%
   5 Year .......................................    9.10%
   Life of Fund (b) .............................    9.69%
--------------------------------------------------------------


            Dividend History - Common Stock
--------------------------------------------------------
Payment Date       Rate Per Share     Reinvestment Price
------------       --------------     ------------------
June 26, 2000          $0.200            $ 9.98
March 27, 2000         $0.200            $ 9.71
December 27, 1999      $0.430            $10.38
September 27, 1999     $0.200            $10.86
June 28, 1999          $0.200            $11.38
March 29, 1999         $0.200            $11.04
December 28, 1998      $0.320            $11.49
September 28, 1998     $0.200            $10.52
June 26, 1998          $0.200            $11.02
March 26, 1998         $0.200            $11.10
December 26, 1997      $0.600            $10.49
September 26, 1997     $0.120            $10.44
June 27, 1997          $0.120            $ 9.96
March 27, 1997         $0.120            $ 9.63
December 27, 1996      $0.375            $ 9.51
September 23, 1996     $0.120            $ 9.73
June  24, 1996         $0.120            $10.17
March 25, 1996         $0.120            $10.41
December 27, 1995      $0.750            $10.95
September 27, 1995     $0.200            $11.10
June 27, 1995          $0.200            $11.21
December 31, 1994      $0.900            $10.60
December 31, 1993      $1.425            $11.52
December 31, 1992      $0.876            $11.45
December 31, 1991      $0.865            $10.91
December 31, 1990      $0.490            $10.47
June 28, 1990          $0.100            $10.68
March 29, 1990         $0.100            $10.55
December 29, 1989      $0.115            $10.51

(a) Total return and average  annual return  reflect  changes in net asset value
and  reinvestment of dividends and are net of expenses.  Of course,  the returns
noted represent past performance and do not guarantee future results. Investment
returns and the principal value of an investment will fluctuate. When shares are
sold they may be worth more or less than their original cost.

(b)  From commencement of operations on July 3, 1989.

(c) The Fund converted to closed-end status on March 31, 1995.
--------------------------------------------------------------------------------

                                        2

<PAGE>

      Over the past few  months  the  Fund's  shares  have  traded at an average
discount of approximately 12% to the net asset value. At these price levels, the
Fund is an ideal  opportunity for investors to add to their positions.  Our cash
purchase  program  provides an easy way for registered  shareholders  to acquire
additional  shares at the current  market price.  Please find the details of our
Voluntary Cash Purchase Plan at the end of this report.

WHAT WE DO

      The success of momentum  investing in recent years and  investors'  desire
for instant  gratification have combined to make value investing appear dull. At
the risk of being dull, we will once again  describe the "boring" value approach
that has seen us through both good and bad markets over the last 10 years at The
Gabelli  Convertible  Securities  Fund and for over 23  years at  Gabelli  Asset
Management  Company. In past reports, we have tried to articulate our investment
philosophy  and  methodology.  The following  graphic  further  illustrates  the
interplay among the four components of our valuation approach.

[GRAPHIC OMITTED]
PYRAMID TEXT AS FOLLOWS:

EPS
PMV
MANAGEMENT
CASH FLOW
RESEARCH

      Our  focus  is  on  free  cash  flow:  earnings  before  interest,  taxes,
depreciation and amortization (EBITDA) minus the capital expenditures  necessary
to grow the  business.  We  believe  free cash flow is the best  barometer  of a
business'  value.   Rising  free  cash  flow  often   foreshadows  net  earnings
improvement.  We also look at earnings per share  trends.  Unlike Wall  Street's
ubiquitous  earnings momentum  players,  we do not try to forecast earnings with
accounting  precision and then trade stocks based on quarterly  expectations and
realities.  We simply try to position  ourselves in front of long-term  earnings
uptrends.  In  addition,  we  analyze  on  and  off  balance  sheet  assets  and
liabilities such as plant and equipment,  inventories,  receivables,  and legal,
environmental  and health care issues.  We want to know  everything and anything
that will add to or detract from our private market value (PMV) estimates.

      Finally,  we look for a catalyst:  something  happening  in the  company's
industry or indigenous  to the company  itself that will surface  value.  In the
case of the independent  telephone stocks,  the catalyst is a regulatory change.
In the agricultural  equipment business,  it is the increasing world-wide demand
for  American  food and feed crops.  In other  instances,  it may be a change in
management,  sale or spin-off of a division or the  development  of a profitable
new business.

      Once we  identify  stocks  that  qualify  as  fundamental  and  conceptual
bargains,  we then become patient  investors.  This has been a proven  long-term
method for preserving and enhancing wealth in the U.S.  equities market.  At the
margin,  our new investments are focused on businesses that are well-managed and
will benefit from sustainable  long-term economic dynamics.  These include macro
trends,  such as the  globalization  of the market in filmed  entertainment  and
telecommunications, and micro trends, such as an increased focus on productivity
enhancing goods and services.

CONVERTIBLE SECURITIES ARE "HYBRIDS"

      It is important to understand our stock selection discipline because price
movement in the underlying  equity will  generally  have the greatest  impact on
convertible  securities pricing.  The convertible  securities market consists of
bonds,  debentures,  corporate  notes,  preferred  stocks and  warrants or other
similar securities which may be

                                        3

<PAGE>

converted  into or exchanged  for a  prescribed  amount of common stock or other
equity security of the same or a different issuer within a particular  period of
time at a specified  price or formula.  Converts  are "hybrid"  securities  that
combine the capital appreciation  potential of equities with the higher yield of
fixed income instruments.  Our strategy incorporates the purchase of convertible
securities  that are trading at a premium above parity with the common stock but
which generally provide a higher yield and, over time, capital appreciation.  We
will also seek out  "busted"  converts,  where the  underlying  common stock has
dropped  significantly  and the values of both the conversion  privilege and the
convert are down.  Such  securities  will provide both high yields and long-term
capital appreciation potential.

CONVERTIBLE MARKET OVERVIEW

      As of June 30, 2000, the U.S. convertible market totaled $194 billion. The
average  convertible  security was rated B+, had a current yield of 5.6%,  and a
conversion  premium of 25.5%.  The broader  convertible  market fell 5.8% in the
second quarter and was up 0.7% year to date. High quality  defensive  structures
preformed  best.  During the  quarter,  zero  coupon  convertibles  outperformed
convertible   preferred  stock  (+0.1%  versus  -10.4%),  and  investment  grade
convertibles bested speculative grade issues (-1.9% versus -14.8%).

      Volatility dampened new issue activity in the quarter, which totaled $11.6
billion versus a record breaking $23.6 billion in the first quarter.  During the
second  quarter,  the character of new issuers changed  dramatically.  The first
quarter  was  dominated  by  speculative  grade,  New  Economy,  technology  and
biotechnology  companies.  As these sectors suffered,  demand in the convertible
market  shifted to  investment  grade,  non-technology  issuers  like energy and
utility companies.

      This trend was  reflected  in sector  performance.  Last  year's  laggards
blossomed into this year's market leaders.  Top performing  sectors this quarter
were  healthcare  (+24.3%),  utilities  (+18.6%),  and energy  (+3.3%).  Lagging
sectors  were  telecommunications  (-17.4%),  technology  (-9.4%),  and consumer
non-cyclical (-8.1%).

COMMENTARY

"WHAT, ME WORRY?"

      "What,  Me Worry?" was the motto of the  blissfully  idiotic Mad  Magazine
cover boy Alfred E. Neumann, and of investors whose insatiable demand for stocks
has driven the market  relentlessly  higher in recent  years.  As the head of an
investment advisory firm entrusted with many people's  hard-earned savings, I am
in the worrying  business.  As usual,  there are more than a few things to worry
about.

      The labor market remains tight and the threat of wage-driven  inflation is
quite  real.  Despite  six  Federal  Reserve  interest  rate hikes over the last
eighteen  months,  the  economy  is still  growing at a pace that  troubles  the
monetary  authorities  and may lead to even higher short and long-term  interest
rates.  Although we would assign it a low probability,  there is the danger that
the Federal Reserve will overplay its hand and send the economy into a tailspin.
This is also an election  year.  While the campaign has been a relatively  quiet
one,  the  rhetoric  is  sure  to heat  up as we  approach  November.  Political
posturing on economic  issues,  principally  how to squander the growing  budget
surplus,  may rattle  the  financial  markets.  Finally,  while  there are large
pockets of very attractive fundamental values in the equity markets,  stocks are
still rather richly priced relative to historic norms.

                                        4

<PAGE>

      Of less  widespread  concern is the soaring  balance of the trade deficit.
Thus far, the world has been happy to finance this deficit by buying U.S. stocks
and  bonds.  This has  worked  out well for all  concerned.  However,  if we see
inflation  continue to trend higher and the U.S.  financial  markets continue to
sputter,  international  investors  may seek  opportunities  elsewhere.  Reduced
global demand for U.S.  financial assets may have a greater impact on stocks and
bonds  than the  aforementioned  economic,  political,  and market  issues.  All
investment  esoterics  aside,  stocks  and bonds go up when the  buyers are more
motivated  than the  sellers.  If the  international  demand  dries up, the very
favorable  supply/demand  dynamics that the U.S.  financial markets have enjoyed
over the last decade may be disrupted.

      That is the dark  side.  The  bright  side is that we are  finally  seeing
evidence  of  economic  deceleration.  Housing  starts  and home  sales are down
substantially,  and with the exception of oil, commodity prices have stabilized.
The most recently released  employment  numbers were relatively benign and there
are indications  that consumer  confidence has been dented.  For the time being,
the  Federal  Reserve  has spared us an  additional  rate  hike.  We just may be
returning  to a  "Goldilocks"  economy--not  too  hot,  not too  cool,  but just
right--that will help propel stocks higher.  Ideally, we will see a much broader
market  advance  in which  quality  companies  in a wider  range  of  industries
participate.

THE SCORECARD

      Verio,  which is being  acquired by Nippon  Telegraph  &  Telephone  Corp.
(NTT), and Mark IV Industries,  which is being purchased by the leveraged buyout
group BC  Partners,  were near the top of our  performance  list  this  quarter.
Energy  holdings  such as CH Energy  Group  and BP Amoco  also  performed  well.
Utility investments including Citizens Communications, Energy North, and Eastern
Enterprises posted more modest gains.

      Industrial  cyclicals such as Fedders Corp., WHX Corp., and Standard Motor
Products  disappointed.  Telecommunications  holdings  including  Bell Atlantic,
United States Cellular,  and Telefonica  Europa also declined.  We think quality
industrial  cyclicals  are  substantially   undervalued  and  with  better  than
anticipated  future  earnings,  may attract more favorable  investor  attention.
Telecommunications  securities,  which suffered from  widespread  profit taking,
should also rebound as earnings grow and further  consolidation  in the industry
wins back supporters.

GOOD THINGS COME TO THOSE WHO WAIT

      The  critical  element to our  success  in the  equities  and  convertible
securities  markets  has been  patience  in both the  selection  process  and in
waiting for the values of portfolio positions to be recognized. We will continue
to be patient and  opportunistic  in  selecting  converts  for the Fund and will
invest in short-term  instruments  (including  time  sensitive  work-outs)  when
appropriate.  We bought mostly short-term U.S. Treasury obligations in the past.
However,  the U.S.  financial system has improved  significantly and we now take
advantage of other  short-term  alternatives.  In this regard,  the  Convertible
Securities Fund at times engages in risk arbitrage to generate returns.  By risk
arbitrage we mean investing in "event"  driven  situations;  primarily,  but not
exclusively,  in  announced  mergers,  acquisitions,  reorganizations  and other
"workout"  opportunities.  In  order  to  avoid  overall  market  risk in  these
opportunities, the Fund will concentrate on the lower risk transactions.

                                        5

<PAGE>

      We borrow a quote from  Warren  Buffett to explain our  occasional  use of
risk arbitrage in the Fund: "Our  subsidiaries  sometimes engage in arbitrage as
an alternative to holding short-term cash equivalents.  We prefer, of course, to
make major long-term  commitments.  But we often have more cash than good ideas.
At such times  arbitrage  sometimes  promises much greater returns than Treasury
Bills and,  equally  important,  cools any  temptation  we may have to relax our
standards for long-term investments."

      In short,  the high cash  position in the Fund does not reflect any effort
on  our  part  to  time  the  convertible  securities  market.  It is  rather  a
consequence  of our value  oriented  discipline.  At the same time,  some of our
convertible  securities  have been  called by the issuer and we either  received
cash or stock.  Our portfolio  turnover rate reflects this activity,  as well as
our investments in "event" driven  situations which were consummated  during the
year.  We are  always  hard at work  evaluating  opportunities  and  identifying
fundamental  bargains to progress to a more fully invested posture.  However, we
will not stretch our fundamental parameters and introduce greater market risk to
the portfolio.

LET'S TALK CONVERTS

      The following are  specifics on selected  holdings of our Fund.  Favorable
earnings prospects do not necessarily  translate into higher prices, but they do
express a positive trend which we believe will develop over time.

BELL ATLANTIC CORP. (BEL) (SUB. DEB. CV., 4.25%, 09/15/05), following its merger
with GTE (GTE - $62.25 - NYSE),  has been renamed Verizon  Communications  (VZ -
NYSE). VZ becomes the largest domestic provider of wireline communications, with
95  million  access  line  equivalents.  Verizon  is also the  largest  domestic
wireless carrier,  with about 25 million subscribers,  and is one of the world's
largest and most successful wireless  companies,  with domestic operations in 24
states and  international  investments in Latin America,  Europe and the Pacific
Rim. In early  April,  BEL, GTE and  Vodafone  AirTouch  (VOD - $41.4375 - NYSE)
finished  combining their U.S.  wireless  operations into a joint venture called
Verizon Wireless,  which will reach more than 90% of the U.S. population.  VZ is
also a global leader in publishing  directories and in providing  Internet-based
shopping  guides,  website creation and hosting,  and other electronic  commerce
services. The company has a mix of mature and start-up communications businesses
in Europe and the Pacific Rim,  including a 24.9% stake in Telecom  Corp. of New
Zealand and an 18.5% stake in Cable & Wireless Communications.

CENDANT  CORP.  (7.50%  CV.  PFD.,  1.30%  CV.  PFD.)  earns a fee  each  time a
transaction  occurs at one of its  franchise  hotels (Ramada  Inns,  Days  Inns,
Travelodge),  real estate brokers (Coldwell Banker,  Century 21) or at Avis, the
car rental agency.  The company generates strong earnings and cash flow, and has
bought  back 20% of its  shares  over  the past  year.  These  actions  are good
evidence of management's  commitment to shareholder  value. We remain  confident
about the company's good value and growth opportunities.

CITIZENS  COMMUNICATIONS  CO.  (CZN)  (5.00%  CV.  PFD.)  will soon  become  the
country's  largest  independent local exchange carrier once it completes several
acquisitions of over 2 million access lines for $6.5 billion. Upon completion of
these transactions, accompanied by divestitures of its utilities operations, CZN
will reposition itself as a pure  telecommunications  company. CZN also owns 81%
of a competitive  carrier,  Electric Lightwave (ELIX - $18.6875 - NASDAQ),  with
fiber optic networks covering the Western part of the U.S.

                                        6

<PAGE>

HILTON HOTELS CORP. (HLT) (SUB. DEB. CV., 5.00%,  05/15/06) is recognized as one
of the world's preeminent hospitality companies.  Hilton develops, owns, manages
and franchises hotels,  resorts and vacation ownership properties.  Based on the
number of hotel rooms,  Hilton is the nation's  seventh  largest hotel  company.
Hilton has  approximately 260 hotels and resorts in cities throughout the United
States,  including 54 owned and/or managed hotels and 199 hotels under franchise
agreements. Flagship properties include The Waldorf-Astoria,  the Hilton Chicago
& Towers,  Hilton  Hawaiian  Village  (98%-owned)  and Palmer House Hilton.  HLT
formalized  a marketing  alliance  with British  company  Hilton Group plc (HG -
$3.51 - London Stock Exchange) (owner of Hilton  International)  in January 1997
to  reunite  the  Hilton  name  worldwide  for the first  time in over 30 years.
Hilton's casino gaming  properties  have been spun-off into a new company,  Park
Place Entertainment (PPE - $12.1875 - NYSE).

MARK IV  INDUSTRIES  INC.  (SUB.  DEB.  CV.,  4.75%,  11/01/04) is a diversified
manufacturer  of a broad range of proprietary and other power and fluid transfer
products and systems that primarily serve industrial and automotive markets. The
company classifies its operations into two business segments. Mark IV Industrial
includes the design,  manufacture and distribution of power and fluid management
systems and components for industrial original equipment  manufacturers  ("OEM")
and  distribution  markets  worldwide.  Mark IV Automotive  includes the design,
manufacture  and  distribution of power  transmission,  fuel, and fluid handling
systems  and  components,  and filters and  filtration  systems,  for the global
automotive  aftermarket and OEM market. BC Partners,  a leading European private
equity firm, has reached an agreement  providing for the  acquisition of Mark IV
for $23.00 cash per share.

SEALED  AIR  CORP.  ($2.00  CV.  PFD.,  SER.  A) is a  global  manufacturer  and
distributor of a wide range of protective and specialty  packaging materials and
systems for industrial, food and consumer products. Sealed Air's business mix is
60% food  packaging and 40%  protective  packaging.  Sealed Air is a strong cash
generator, with excess cash expected to be used to pay down debt.

SEAGRAM CO.  (7.50% CV. PFD.)  operates  two global  businesses:  beverages  and
entertainment.  The beverage group's major brands include Chivas Regal, Martell,
Mumm, Crown Royal and Seagram's Gin. With its $10.4 billion December acquisition
of  Polygram,  Seagram  has  created  the world's  leading  music  company,  the
Universal Music Group.  Seagram's  entertainment business includes the Universal
Motion Pictures Group, the Universal Studios Recreation Group and a 46% interest
in USA Networks (USAI - $21.625 - NASDAQ).  On June 20th,  Seagram,  Vivendi and
Canal  Plus  agreed to  merge,  creating  a fully  integrated  global  media and
communications company for the wired and wireless world.

STANDARD  MOTOR  PRODUCTS  INC.  (SMP)  (SUB.   DEB.  CV.,   6.75%,   07/15/09),
headquartered  in Long Island City, New York,  supplies  functional  replacement
parts for the engine management, electrical and climate control systems of cars,
trucks and buses.  The company  services all makes and models,  both new and old
cars, imported and domestic.  SMP has two primary  divisions--engine  management
and temperature control--and believes it is the number one supplier to the North
American aftermarket in each of these lines.


                                        7

<PAGE>

USA NETWORKS INC. (SUB. DEB. CV., 7.00%,  07/01/03),  through its  subsidiaries,
engages in diversified  media and electronic  commerce  businesses  that include
electronic retailing, ticketing operations and television broadcasting. Chairman
and CEO Barry  Diller has brought  together  under one umbrella the USA Network,
the Sci-Fi Channel,  USA Networks Studios,  USA Broadcasting,  The Home Shopping
Network and the  Ticketmaster  Group.  The plan is to  integrate  these  assets,
leveraging  programming,  production capabilities and electronic commerce across
this strong distribution platform.

VOICESTREAM  WIRELESS  CORP.  (VSTR)  (7.00% CV.  PFD.) is one of the three U.S.
independent  wireless service  providers with licenses covering over 200 million
POPS (Point of Presence).  VSTR was spun-off of Western  Wireless about fourteen
months ago and is the only national  carrier  utilizing  GSM (Global  System for
Mobile Communication)  technology,  a standard which dominates in Europe. VSTR's
high growth  rates and  experienced  management  team,  as well as its  national
licenses,  make the company an  attractive  acquisition  target for major global
telecommunications  companies,  many of which lack a U.S. presence.  On July 24,
Deutsche Telekom announced that it would purchase VSTR in a deal with an initial
value of $50.5 billion.

SHAREHOLDER MEETING - MAY 15, 2000 - FINAL RESULTS

      The  Annual  Meeting  of  Shareholders  was  held on May  15,  2000 at the
Greenwich Public Library in Greenwich,  Connecticut. At that meeting, Common and
Preferred Shareholders elected E. Val Cerutti, Dugald A. Fletcher and Anthony R.
Pustorino as Directors of the Convertible  Securities Fund. A total of 6,943,861
votes,  6,935,055  votes and 6,924,390 votes were cast in favor of each Director
and 70,418 votes, 79,224 votes and 89,889 votes were withheld for each Director,
respectively.

      Mario  J.  Gabelli,  Felix J.  Christiana,  Karl  Otto  Pohl,  Anthony  J.
Colavita,  Anthonie  C. van Ekris and  Salvatore  J. Zizza  continue to serve in
their capacities as Directors of the Convertible Securities Fund.

      In    addition,     Common    and    Preferred     Shareholders    elected
PricewaterhouseCoopers  LLP as the  independent  accountants for the Convertible
Securities Fund for the year ending December 31, 2000. 6,929,555 votes were cast
in favor of the  approval of this  proposal,  30,150 votes were cast against the
proposal and 54,574 votes abstained.

      We thank you for your participation and appreciate your continued support.

STOCK REPURCHASE PLAN

      The Gabelli Convertible  Securities Fund is authorized to repurchase up to
500,000 shares of the Convertible Securities Fund's outstanding shares. Pursuant
to this stock repurchase plan, the Convertible  Securities Fund may from time to
time purchase shares of its capital stock in the open market when the shares are
trading at a discount of 10% or more from the net asset value of the shares.  In
total,  through June 30, 2000,  237,000 shares have been repurchased in the open
market under this stock repurchase plan.

COMMON STOCK 8% DISTRIBUTION POLICY

      The  Convertible  Securities  Fund  continues  to  maintain  its 8% Annual
Distribution  Policy whereby the Fund pays out 8% of its average net assets each
year to common  stock  shareholders.  Pursuant to this policy,  the  Convertible
Securities  Fund  distributed  $0.20  per  share  on June  26,  2000.  The  next
distribution is scheduled for September 2000.

                                        8

<PAGE>

8.00% CUMULATIVE PREFERRED STOCK - DIVIDENDS

      The Convertible  Securities Fund's 8.00% Cumulative Preferred Stock paid a
cash  distribution  on June 26, 2000 of $0.50 per share.  For the  twelve-months
ended  June  30,  2000,  Preferred  Stock  shareholders  received  distributions
totaling $2.00,  or the annual  dividend rate per share on the Preferred  Stock.
The next distribution is scheduled for September 2000.

WWW.GABELLI.COM

      Please visit us on the Internet.  Our home page at  http://www.gabelli.com
contains  information  about Gabelli Asset  Management  Inc., the Gabelli Mutual
Funds, IRAs, 401(k)s,  quarterly reports, closing prices and other current news.
You can send us e-mail at [email protected].

IN CONCLUSION

      Convertible  securities  struggled  to make  progress  in the midst of the
slumping  stock and bond  markets.  We are  encouraged by  indications  that the
economy is slowing and that interest  rates may  stabilize or trend lower.  This
would provide a better background for stocks, bonds, and convertible securities.
We continue to focus on the convertible  securities of quality companies trading
at  opportunistic  prices.  We  believe  this  will  translate  into  attractive
long-term returns.

                                       Sincerely,

                                       /S/ SIGNATURE

                                       MARIO J. GABELLI
                                       President and Chief Investment Officer

August 14, 2000

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------
                                             TOP TEN CONVERTIBLE HOLDINGS
                                                     JUNE 30, 2000
                                                     -------------
<S>                                                         <C>
Mark IV Industries Inc. (Sub. Deb. Cv., 4.75%, 11/01/04)    Sequa Corp. ($5.00 Cv. Pfd.)
Citizens Communications Co. (5.00% Cv. Pfd.)                Sealed Air Corp. ($2.00 Cv. Pfd., Ser. A)
Standard Motor Products (Sub. Deb. Cv., 6.75%, 07/15/09)    Coltec Capital Trust (5.25% Cv. Pfd.)
Hilton Hotels Corp. (Sub. Deb. Cv., 5.00%, 05/15/06)        News America Holdings (Sub. Deb. Cv., Zero Cpn., 03/31/02)
Kaman Corp. (Sub. Deb. Cv., 6.00%, 03/15/12)                Kollmorgen Corp. (Sub. Deb. Cv., 8.75%, 05/01/09)
-----------------------------------------------------------------------------------------------------------------------
</TABLE>

NOTE: The views expressed in this report reflect those of the portfolio  manager
only  through the end of the period of this  report as stated on the cover.  The
manager's  views are  subject  to change at any time  based on market  and other
conditions.

                                        9

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                            PORTFOLIO OF INVESTMENTS
                            JUNE 30, 2000 (UNAUDITED)

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

               CONVERTIBLE CORPORATE BONDS -- 29.5%
               AUTOMOTIVE: PARTS AND ACCESSORIES -- 4.4%
 $   700,000   Exide Corp. Sub. Deb. Cv.
                 2.90%, 12/15/05 (b) ...   $    484,944  $    332,062
     350,000   Pep Boys - Manny, Moe
                 & Jack Sub. Deb. Cv.
                 Zero Cpn., 09/20/11 ...        192,845       198,187
   9,000,000   Standard Motor Products Inc.
                 Sub. Deb. Cv.
                 6.75%, 07/15/09 .......      6,937,318     4,657,500
                                           ------------  ------------
                                              7,615,107     5,187,749
                                           ------------  ------------
               AVIATION: PARTS AND SERVICES -- 3.0%
   4,189,000   Kaman Corp. Sub. Deb. Cv.
                 6.00%, 03/15/12 .......      4,011,985     3,565,886
                                           ------------  ------------
               BUSINESS SERVICES -- 2.0%
     900,000   BBN Corp. Sub. Deb. Cv.
                 6.00%, 04/01/12 (a) ...        880,849       870,750
   1,770,000   Trans-Lux Corp.
                 Sub. Deb. Cv.
                 7.50%, 12/01/06 .......      1,701,490     1,440,337
                                           ------------  ------------
                                              2,582,339     2,311,087
                                           ------------  ------------
               COMPUTER SOFTWARE AND SERVICES -- 0.1%
     400,000   QuadraMed Corp.
                 Sub. Deb. Cv.
                 5.25%, 05/01/05 .......        254,458       134,500
                                           ------------  ------------
               CONSUMER PRODUCTS -- 0.8%
   1,500,000   Pillowtex Corp. Sub. Deb. Cv.
                 6.00%, 03/15/12 .......        728,618       465,000
     750,000   Standard Commercial Corp.
                 Sub. Deb. Cv.
                 7.25%, 03/31/07 .......        632,708       451,875
                                           ------------  ------------
                                              1,361,326       916,875
                                           ------------  ------------
               CONSUMER SERVICES -- 0.4%
     500,000   Ogden Corp. Sub. Deb. Cv.
                 6.00%, 06/01/02 .......        458,099       425,000
                                           ------------  ------------
               ELECTRONIC EQUIPMENT -- 0.0%
               ASM Lithography
                 Holding Cv.
      40,000     2.50%, 04/09/05 (d) ...         18,516        40,140
      10,000     2.50%, 04/09/05 (b) (d)          4,629        10,035
                                           ------------  ------------
                                                 23,145        50,175
                                           ------------  ------------
  PRINCIPAL                                                  MARKET
   AMOUNT                                       COST         VALUE
  ---------                                     ----         ------

               ENERGY AND UTILITIES -- 1.0%
 $   100,000   Friede Goldman Halter Inc.
                 Sub. Deb. Cv.
                 4.50%, 09/15/04 .......   $     61,955  $     60,625
   1,100,000   Moran Energy Inc.
                 Sub. Deb. Cv.
                 8.75%, 01/15/08 .......        757,842     1,023,000
     100,000   Texaco Capital Inc. Cv.
                 3.50%, 08/05/04 .......        100,379        98,045
                                           ------------  ------------
                                                920,176     1,181,670
                                           ------------  ------------
               ENTERTAINMENT -- 0.7%
     800,000   USA Networks Inc.
                 Sub. Deb. Cv.
                 7.00%, 07/01/03 .......        759,417       779,000
                                           ------------  ------------
               ENVIRONMENTAL SERVICES -- 0.8%
   1,000,000   Waste Management Inc.
                 Sub. Deb. Cv.
                 4.00%, 02/01/02 .......        909,179       927,500
                                           ------------  ------------
               EQUIPMENT AND SUPPLIES -- 7.9%
      39,000   Intermagnetics General Corp.
                 5.75%, 09/15/03 .......         39,000        50,017
   1,529,000   Kollmorgen Corp.
                 Sub. Deb. Cv.
                 8.75%, 05/01/09 .......      1,319,759     1,523,266
   8,000,000   Mark IV Industries Inc.
                 Sub. Deb. Cv.
                 4.75%, 11/01/04 .......      6,938,260     7,430,000
     350,000   Robbins & Myers Inc.
                 Sub. Deb. Cv.
                 6.50%, 09/01/03 .......        338,356       337,750
                                           ------------  ------------
                                              8,635,375     9,341,033
                                           ------------  ------------
               FOOD AND BEVERAGE -- 0.1%
     110,000   Boston Chicken Inc.
                 Sub. Deb. Cv.
                 7.75%, 05/01/04+ ......         33,396           687
     150,000   Chiquita Brands
                 International Inc. Cv.
                 7.00%, 03/28/01 .......        141,205       129,000
                                           ------------  ------------
                                                174,601       129,687
                                           ------------  ------------
               HEALTH CARE -- 0.1%
      10,000   Inhale Therapeutic Systems
                 Sub. Deb. Cv.
                 6.75%, 10/13/06 (b) ...         10,413        31,625
     150,000   Sabratek Corp.
                 Sub. Deb. Cv.
                 6.00%, 04/15/05+ ......         71,572        44,250


                 See accompanying notes to financial statements.

                                       10

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2000 (UNAUDITED)

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

               CONVERTIBLE CORPORATE BONDS (CONTINUED)
               HEALTH CARE (CONTINUED)
$     10,000   Veterinary Centers of
                 America Inc.
                 Sub. Deb. Cv.
                 5.25%, 05/01/06 .......   $      8,876  $      9,125
                                           ------------  ------------
                                                 90,861        85,000
                                           ------------  ------------
               HOTELS AND GAMING -- 3.4%
   5,000,000   Hilton Hotels Corp.
                 Sub. Deb. Cv.
                 5.00%, 05/15/06 .......      4,358,307     3,950,000
                                           ------------  ------------
               PAPER AND FOREST PRODUCTS -- 1.1%
     200,000   Riverwood International Corp.
                 Sub. Deb. Cv.
                 6.75%, 09/15/03 .......        199,772       230,890
   1,200,000   Thermo Fibertek Inc. Cv.
                 4.50%, 07/15/04 (b) ...      1,010,097     1,014,000
                                           ------------  ------------
                                              1,209,869     1,244,890
                                           ------------  ------------
               PUBLISHING -- 1.5%
     700,000   News America Holdings Inc.
                 Sub. Deb. Cv.
                 Zero Cpn., 03/31/02 ...        612,931     1,624,000
     200,000   Times Mirror Ltd.
                 Sub. Deb. Cv.
                 Zero Cpn., 04/15/17 ...        100,035       112,500
      50,000   United News & Media plc
                 Sub. Deb. Cv.
                 6.13%, 12/03/03 (c) ...         86,155       100,243
                                           ------------  ------------
                                                799,121     1,836,743
                                           ------------  ------------
               REAL ESTATE AND DEVELOPMENT -- 0.1%
     125,000   Rockefeller Center Properties Inc.
                 Sub Deb. Cv.
                 Zero Cpn., 12/31/00 ...        117,833       108,750
                                           ------------  ------------
               RETAIL-- 0.0%
      60,000   Costco Companies Inc.
                 Sub. Deb. Cv.
                 Zero Cpn., 08/19/17 ...         42,210        49,725
     100,000   JumboSports Inc.
                 Sub. Deb. Cv.
                 4.25%, 11/01/00+ ......         84,827         5,500
                                           ------------  ------------
                                                127,037        55,225
                                           ------------  ------------

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

               SPECIALTY CHEMICALS -- 1.0%
    $900,000   IVAX Corp.
                 Sub. Deb. Cv.,
                 6.00%, 05/15/07 (b) ...   $    900,000  $  1,143,000
                                           ------------  ------------
               TECHNOLOGY -- 0.3%
     400,000   Thermo Electron Corp.
                 Sub. Deb. Cv.
                 4.25%, 01/01/03 (b) ...        363,563       370,500
                                           ------------  ------------
               TELECOMMUNICATIONS -- 0.6%
      80,000   Amnex Inc. Sub. Deb. Cv.
                 8.50%, 09/25/02 (b) ...         73,273         3,592
      90,000   Bell Atlantic Corp. Cv.
                 4.25%, 09/15/05 (b) ...         99,043       117,225
     500,000   Rogers Communications Inc.
                 Sub. Deb. Cv.
                 2.00%, 11/26/05 .......        357,322       487,500
      50,000   Telefonica Europe BV
                 Sub. Deb. Cv.
                 2.00%, 07/15/02 .......         50,000       109,529
                                           ------------  ------------
                                                579,638       717,846
                                           ------------  ------------
               WIRELESS COMMUNICATIONS -- 0.2%
     500,000   U.S. Cellular Corp.
                 Sub. Deb. Cv.
                 Zero Cpn., 06/15/15 ...        378,402       298,750
                                           ------------  ------------
               TOTAL CONVERTIBLE
                 CORPORATE BONDS .......     36,629,838    34,760,866
                                           ------------  ------------

      SHARES
      ------

               CONVERTIBLE PREFERRED STOCKS -- 14.8%
               AGRICULTURE -- 0.2%
       4,200   Monsanto Co.
                 6.50% Cv. Pfd. ........        181,635       190,050
                                           ------------  ------------
               AVIATION: PARTS AND SERVICES -- 1.5%
               Coltec Capital Trust
      25,000     5.25% Cv. Pfd. ........      1,032,875     1,032,812
      17,000     5.25% Cv. Pfd. (b) ....        802,500       702,312
                                           ------------  ------------
                                              1.835,375     1,735,124
                                           ------------  ------------
               BUSINESS SERVICES -- 1.5%
               Cendant Corp.
       5,000     7.50% Cv. Pfd. ........        147,750       108,750
      66,000     1.30% Cv. Pfd. ........      1,704,187     1,295,250
       5,500   Verio Inc.
                 6.75% Cv. Pfd. Ser. A .        335,500       326,906
                                           ------------  ------------
                                              2,187,437     1,730,906
                                           ------------  ------------


                 See accompanying notes to financial statements.

                                       11

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2000 (UNAUDITED)

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

               CONVERTIBLE PREFERRED STOCKS (CONTINUED)
               CABLE -- 0.2%
       1,000   MediaOne Group Inc.
                 4.50% Cv. Pfd. Ser. D+    $     26,800  $     24,938
       2,500   UnitedGlobalCom Inc.
                 7.00% Cv. Pfd. (a) ....        172,600       150,313
                                           ------------  ------------
                                                199,400       175,251
                                           ------------  ------------
               DIVERSIFIED INDUSTRIAL -- 1.0%
       1,400   GATX Corp.
                 $2.50 Cv. Pfd. ........        136,020       247,800
      42,000   WHX Corp.
                 6.50% Cv. Pfd. Ser. A .      1,937,300       908,250
                                           ------------  ------------
                                              2,073,320     1,156,050
                                           ------------  ------------
               ENTERTAINMENT -- 0.3%
       4,500   Metromedia International
                 Group Inc.
                 7.25% Cv. Pfd. ........        170,031       126,000
       5,000   Seagram Co.
                 7.50% Cv. Pfd. ........        250,625       268,750
                                           ------------  ------------
                                                420,656       394,750
                                           ------------  ------------
               EQUIPMENT AND SUPPLIES -- 1.7%
      25,800   Sequa Corp.
                 $5.00 Cv. Pfd. ........      1,991,532     2,044,650
                                           ------------  ------------
               PAPER AND FOREST PRODUCTS -- 1.5%
      34,500   Sealed Air Corp.
                 $2.00 Cv. Pfd. Ser. A .      1,435,100     1,746,563
                                           ------------  ------------
               PUBLISHING -- 0.5%
      15,000   Reader's Digest
                 Association Inc.
                 $1.9336 Cv. Pfd. ......        382,588       525,000
       5,000   Tribune Co.
                 6.25% Cv. Pfd. ........         92,750        83,750
                                           ------------  ------------
                                                475,338       608,750
                                           ------------  ------------
               RETAIL -- 0.2%
       3,000   CVS Corp.
                 6.00% Cv. Pfd. ........        269,650       212,438
                                           ------------  ------------
               SPECIALTY CHEMICALS -- 0.0%
       2,000   Merrill Lynch & Co.
                 (IMC Global)
                 6.25% Cv. Pfd. ........         41,037        30,375
                                           ------------  ------------

                                                             MARKET
   SHARES                                       COST         VALUE
  ---------                                     ----         ------
               TELECOMMUNICATIONS -- 5.3%
       6,000   BroadWing Inc.
                 6.75% Cv. Pfd. Ser. B .   $    286,550  $    282,000
      80,000   Citizens Communications Co.
                 5.00% Cv. Pfd. ........      3,977,111     5,390,000
       8,000   Philippine Long Distance
                 Telephone Co.
                 $3.50 Cv. Pfd. Ser. III        374,069       294,000
       1,000   RSL Communications Ltd.
                 7.50% Cv. Pfd. (b) ....         36,250        31,500
       1,500   TCI Pacific
                 Communications Inc.
                 5.00% Cv. Pfd. ........        134,837       291,094
                                           ------------  ------------
                                              4,808,817     6,288,594
                                           ------------  ------------
               WIRELESS COMMUNICATIONS -- 0.9%
       6,500   VoiceStream Wireless Corp.
                 7.00% Cv. Pfd. ........        192,645     1,108,250
                                           ------------  ------------
               TOTAL CONVERTIBLE
                 PREFERRED STOCKS ......     16,111,942    17,421,751
                                           ------------  ------------

               COMMON STOCKS -- 17.4%
               AVIATION: PARTS AND SERVICES -- 0.2%
      18,000   Kaman Corp., Cl. A ......        181,321       192,375
                                           ------------  ------------
               BROADCASTING -- 0.3%
      40,000   Granite Broadcasting Corp.+      314,287       295,000
                                           ------------  ------------
               BUSINESS SERVICES -- 0.5%
      10,000   Verio Inc.+ .............        583,134       554,844
                                           ------------  ------------
               ENERGY AND UTILITIES -- 10.4%
      20,000   AGL Resources Inc. ......        361,010       318,750
      28,000   BP Amoco plc, ADR .......        949,080     1,583,750
      20,000   CH Energy Group Inc. ....        735,169       678,750
      10,000   Columbia Energy Group ...        569,687       656,250
      12,000   E'Town Corp. ............        748,600       797,250
      10,000   Eastern Enterprises .....        587,375       630,000
       7,000   EnergyNorth Inc. ........        403,731       414,750
      50,000   LG&E Energy Corp. .......      1,103,437     1,193,750
      20,000   MCN Energy Group Inc. ...        478,813       427,500
      62,000   Southwest Gas Corp. .....      1,626,573     1,085,000
      70,000   United Water
                 Resources Inc. ........      2,399,325     2,441,250
      25,000   Vastar Resources Inc. ...      2,049,063     2,053,125
                                           ------------  ------------
                                             12,011,863    12,280,125
                                           ------------  ------------
               ENTERTAINMENT -- 0.1%
       1,653   Time Warner Inc. ........        106,050       125,613
                                           ------------  ------------

                 See accompanying notes to financial statements.

                                       12

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
                            JUNE 30, 2000 (UNAUDITED)

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

               COMMONSTOCKS (CONTINUED)
               EQUIPMENT AND SUPPLIES -- 0.2%
      50,000   Fedders Corp., Cl. A ....   $    310,916  $    231,250
                                           ------------  ------------
               FINANCIAL SERVICES -- 0.4%
      25,000   Argonaut Group Inc. .....        629,139       428,125
                                           ------------  ------------
               HEALTH CARE -- 3.1%
      50,000   Shared Medical
                 Systems Corp. .........      3,616,633     3,646,875
                                           ------------  ------------
               RETAIL -- 0.8%
       5,000   AutoNation Inc.+ ........         54,706        35,313
      12,000   Delhaize America
                 Inc., Cl. A ...........        275,298       212,250
      10,000   Hannaford Bros. Co. .....        715,813       718,750
                                           ------------  ------------
                                              1,045,817       966,313
                                           ------------  ------------
               TELECOMMUNICATIONS -- 0.6%
      15,776   Sprint Corp.+ ...........        156,355       938,672
                                           ------------  ------------
               WIRELESS COMMUNICATIONS -- 0.8%
      15,000   Sprint Corp. (PCS Group)+        157,840       765,000
                                           ------------  ------------
               TOTAL
                 COMMON STOCKS .........     19,113,355    20,424,192
                                           ------------  ------------


  PRINCIPAL
   AMOUNT
  ---------

               U.S. GOVERNMENT OBLIGATIONS -- 38.0%
 $44,950,000   U.S. Treasury Bills,
                 5.50% to 5.92%++,
                 due 07/06/00 to
                 09/14/00 ..............     44,737,674    44,739,996
                                           ------------  ------------

  TOTAL INVESTMENTS -- 99.7% ...........   $116,592,809   117,346,805
                                           ============

  OTHER ASSETS, LIABILITIES
    AND LIQUIDATION VALUE
    OF CUMULATIVE PREFERRED
    STOCK -- (25.2%) ..................................  $(29,660,682)
                                                         ------------
  NET ASSETS -- COMMON STOCK -- 74.5%
    (7,855,945 common shares outstanding) .............    87,686,123
                                                         ------------
  NET ASSETS - CUMULATIVE
    PREFERRED STOCK -- 25.5%
    (1,200,000 preferred shares outstanding) ..........    30,000,000
                                                         ------------
  TOTAL NET ASSETS -- 100.0% ..........................  $117,686,123
                                                         ============

  NET ASSET VALUE PER COMMON SHARE
    ($87,686,123 / 7,855,945 shares outstanding) ......        $11.16
                                                               ======

  --------------------
         For Federal tax purposes:
         Aggregate cost ...............................  $116,592,809
                                                         ============
         Gross unrealized appreciation ................  $  8,146,629
         Gross unrealized depreciation ................    (7,392,633)
                                                         ------------
         Net unrealized appreciation ..................  $    753,996
                                                         ============
  --------------------
  (a)   Security fair valued as determined by the Board of Directors.
  (b)   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 June 30, 2000, the market value of Rule 144A securities amounted to
        $3,755,951  or 3.2% of total net assets.
  (c)   Principal amount denoted in British Pounds.
  (d)   Principal amount denoted in Euros.
  +     Non-income producing security.
  ++    Represents annualized yield at date of purchase.
  ADR - American Depositary Receipt

                 See accompanying notes to financial statements.

                                       13

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                       STATEMENT OF ASSETS AND LIABILITIES
                            JUNE 30, 2000 (UNAUDITED)

ASSETS:
   Investments, at value (Cost $116,592,809) .........   $117,346,805
   Foreign currency, at value (Cost $20,707) .........         19,764
   Dividends and interest receivable .................        850,224
   Receivable for investments sold ...................        360,000
                                                         ------------
      TOTAL ASSETS ...................................    118,576,793
                                                         ------------
LIABILITIES:
   Dividends payable .................................        685,358
   Payable for investment advisory fee ...............         66,904
   Payable to custodian ..............................         51,995
   Accrued expenses and other payables ...............         86,413
                                                         ------------
      TOTAL LIABILITIES ..............................        890,670
                                                         ------------
      NET ASSETS .....................................   $117,686,123
                                                         ============
NET ASSETS CONSIST OF:
   Cumulative Preferred Stock (8.00%, $25
      liquidation value, $0.001 par value, 2,000,000
      shares authorized, 1,200,000 shares issued and
      outstanding) redemption value ..................   $ 30,000,000
   Capital stock, at par value .......................          7,856
   Additional paid-in capital ........................     81,489,430
   Accumulated distributions in excess of
      net investment income ..........................        (13,350)
   Accumulated net realized gain on investments
      and foreign currency transactions ..............      5,449,134
   Net unrealized appreciation on investments
      and foreign currency transactions ..............        753,053
                                                         ------------
      TOTAL NET ASSETS ...............................   $117,686,123
                                                         ============
  NET ASSET VALUE PER COMMON SHARE
      ($87,686,123 / 7,855,945 shares issued and
      outstanding; 100,000,000 shares authorized
      of $0.001 par value) ...........................         $11.16
                                                               ======

                             STATEMENT OF OPERATIONS
               FOR THE SIX MONTHS ENDED JUNE 30, 2000 (UNAUDITED)

INVESTMENT INCOME:
   Dividends (net of foreign taxes of $1,235) ........     $  737,719
   Interest ..........................................      2,593,698
                                                           ----------
   TOTAL INVESTMENT INCOME ...........................      3,331,417
                                                           ----------
EXPENSES:
   Investment advisory fees ..........................        419,887
   Shareholder services fees .........................         60,660
   Payroll ...........................................         38,132
   Shareholder communications ........................         35,398
   Directors' fees ...................................         29,265
   Legal and audit fees ..............................         28,388
   Custodian fees ....................................         17,798
   Miscellaneous expenses ............................         18,208
                                                           ----------
   TOTAL EXPENSES ....................................        647,736
                                                           ----------
   NET INVESTMENT INCOME .............................      2,683,681
                                                           ----------
NET REALIZED AND UNREALIZED GAIN (LOSS)
  ON INVESTMENTS AND FOREIGN CURRENCY TRANSACTIONS:
   Net realized gain on investments and
      foreign currency transactions ..................      7,303,524
   Net change in unrealized appreciation
      on investments and foreign currency
      transactions ...................................     (7,590,352)
                                                           ----------
   NET REALIZED AND UNREALIZED LOSS ON INVESTMENTS
      AND FOREIGN CURRENCY TRANSACTIONS ..............       (286,828)
                                                           ----------
   Net Increase in Net Assets Resulting
      from Operations ................................     $2,396,853
                                                           ==========


                       STATEMENT OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
                                                                          SIX MONTHS ENDED         YEAR ENDED
                                                                            JUNE 30, 2000         DECEMBER 31,
                                                                             (UNAUDITED)              1999
                                                                             -----------          ------------
<S>                                                                         <C>                   <C>
OPERATIONS:
   Net investment income ................................................   $  2,683,681          $  4,058,348
   Net realized gain on investments and foreign currency transactions ...      7,303,524             6,671,304
   Net change in unrealized appreciation of investments and
       foreign currency transactions ....................................     (7,590,352)              628,418)
                                                                            ------------          ------------
      NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ..............      2,396,853            10,101,234
                                                                            ------------          ------------
DISTRIBUTIONS TO PREFERRED SHAREHOLDERS:
   Net investment income ................................................       (740,578)             (908,491)
   Net realized gains ...................................................       (459,422)           (1,491,509)
                                                                            ------------          ------------
      TOTAL DISTRIBUTIONS ...............................................     (1,200,000)           (2,400,000)
                                                                            ------------          ------------
DISTRIBUTIONS TO COMMON SHAREHOLDERS:
   Net investment income ................................................     (1,943,103)           (3,050,169)
   Net realized gains ...................................................     (1,205,412)           (4,898,574)
   Distributions in excess of net investment income .....................             --               (22,920)
   Distributions in excess of net realized gains ........................             --              (179,986)
                                                                            ------------          ------------
      TOTAL DISTRIBUTIONS ...............................................     (3,148,515)           (8,151,649)
                                                                            ------------          ------------
CAPITAL SHARE TRANSACTIONS -- NET: ......................................       (541,397)              (96,215)
                                                                            ------------          ------------
      NET DECREASE IN NET ASSETS ........................................     (2,493,059)             (546,630)
NET ASSETS:
   Beginning of period ..................................................    120,179,182           120,725,812
                                                                            ------------          ------------
   End of period ........................................................   $117,686,123          $120,179,182
                                                                            ============          ============
</TABLE>

                 See accompanying notes to financial statements.

                                       14

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                    NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

1. ORGANIZATION. The Gabelli Convertible Securities Fund, Inc. (the "Fund") is a
closed-end  diversified management investment company whose investment objective
is to seek a high level of total return  through a combination of current income
and capital appreciation by investing in convertible securities. The Corporation
was  incorporated  in Maryland on December  19, 1988 as an open-end  diversified
management  investment  company and commenced  operations  on July 3, 1989.  The
Board of Directors,  upon approval at a special meeting of shareholders  held on
February 17, 1995,  voted to approve the  conversion  of the Fund to  closed-end
status, effective March 31, 1995.

2. SIGNIFICANT  ACCOUNTING POLICIES.  The preparation of financial statements in
accordance with 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, quoted by the National Association of Securities
Dealers Automated Quotations, Inc. ("Nasdaq") or traded on foreign exchanges are
valued at the last sale price on that  exchange  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).  All other  portfolio  securities  for which
over-the-counter  market  quotations  are  readily  available  are valued at the
latest average of the bid and asked prices.  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  the  Adviser.
Securities and assets for which market  quotations are not readily available are
valued at their fair market value as determined  in good faith under  procedures
established  by and under the  general  supervision  of the Board of  Directors.
Short term debt  securities  with  remaining  maturities  of 60 days or less are
valued at amortized cost,  unless the Directors  determine such does not reflect
the  securities'  fair value,  in which case these  securities will be valued at
their fair value as  determined  by the  Directors.  Debt  instruments  having a
greater  maturity  are valued at the  highest bid price  obtained  from a dealer
maintaining an active market in those securities. Options are valued at the last
sale price on the exchange on which they are listed. If no sales of such options
have taken place that day, they will be valued at the mean between their closing
bid and asked prices.

      REPURCHASE AGREEMENTS.  The Fund may enter into repurchase agreements with
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 of
Directors.  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 100% 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.

                                       15

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

      FORWARD FOREIGN CURRENCY 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 currency contracts are valued at the
forward  rate and are  marked-to-market  daily.  The  change in market  value is
recorded by the Fund as an unrealized gain or loss. 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  currency   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  currency  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 June 30, 2000,  the Fund held no forward  foreign
currency contracts.

      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  fluctuation  of the
value of the  contract.  The daily  changes  in the  contract  are  recorded  as
unrealized gains or losses. The Fund recognizes a realized gain or loss when the
contract is closed. At June 30, 2000, there were no open futures contracts.

      There are several risks in connection with the use of futures contracts as
a hedging device. 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.

      SHORT  SALES.  The Fund is  authorized  to  engage in short  sales,  which
obligate the Fund to replace the security borrowed by purchasing the security at
the current market value sometime in the future.  The Fund would incur a loss if
the price of the security  increases  between the date of the short sale and the
date on which the Fund replaces the borrowed security.  The Fund would realize a
gain if the price of the security  declines between those dates.  Until the Fund
replaces the borrowed security, the Fund will maintain a segregated account with
cash and/or U.S. Government securities sufficient to cover its short position on
a daily basis.

      FOREIGN  CURRENCY  TRANSLATION.  The  books  and  records  of the Fund are
maintained in United States (U.S.) dollars. Foreign currencies,  investments and
other assets and liabilities  are translated  into U.S.  dollars at the exchange
rates prevailing at the end of the period, and 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, which
result from changes in foreign exchange rates and/or changes in market prices of
securities,  have  been  included  in  unrealized  appreciation/depreciation  on
investments.  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

                                       16

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

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.

      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 as earned.
Dividend income is recorded on the ex-dividend date.

      DIVIDENDS AND  DISTRIBUTIONS TO SHAREHOLDERS.  Dividends and distributions
to shareholders are recorded on the ex-dividend date.  Income  distributions and
capital  gain  distributions  are  determined  in  accordance  with  income  tax
regulations  which may differ from  generally  accepted  accounting  principles.
These  differences are primarily due to differing  treatment of income and gains
on various  investments  securities  held by the Fund,  timing  differences  and
differing  characterization of distributions made by the Fund.  Distributions to
shareholders of Cumulative  Preferred Stock are accrued on a daily basis and are
determined as described in Note 3.

      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. As a result, a Federal income tax provision is not required.

3. CAPITAL.  The Articles of Incorporation,  dated December 19, 1988, permit the
Fund to issue  100,000,000  shares  (par  value  $0.001)  of  common  stock.  In
addition,  the Fund has been  authorized  to  issue up to  2,000,000  shares  of
Preferred  Stock of which  1,200,000  shares has been  designated  as $0.001 par
value 8%  Cumulative  Preferred  Stock.  Dividends  on shares of the  Cumulative
Preferred  Stock are  cumulative.  The Fund is  required to meet  certain  asset
coverage tests with respect to the Cumulative Preferred Stock. If the Fund fails
to meet these  requirements  and does not correct such failure,  the Fund may be
required to redeem,  in part or in full,  the  Cumulative  Preferred  Stock at a
redemption price of $25.00 per share plus an amount equal to the accumulated and
unpaid  dividends  whether or not declared on such shares in order to meet these
requirements.  Additionally,  failure to meet the  foregoing  asset  requirement
could  restrict the Fund's ability to pay dividends to Common  Shareholders  and
could lead to sales of portfolio  securities at inopportune times. The Preferred
Stock is  callable at the  redemption  price at the option of the Fund after May
15, 2002. This Cumulative  Preferred Stock introduced  leverage into the capital
structure  of the  Fund.  This  leverage  tends to  magnify  both the  risks and
opportunities to Common Shareholders.  At June 30, 2000, the 1,200,000 shares of
8% Cumulative  Preferred Stock  outstanding  accrued  dividends in the amount of
$33,333. The income received on the Fund's assets may vary in a manner unrelated
to the fixed rate, which could have either a beneficial or detrimental impact on
net investment income and gains available to Common Shareholders.

      The Fund shall not declare dividends or make other distributions on shares
of Common Stock or purchase  any such shares if at the time of the  declaration,
distribution  or  purchase,  asset  coverage  with  respect  to the  outstanding
Preferred Stock would be less than 200%.

      The holders of Preferred  Stock have voting rights  equivalent to those of
the  holders of Common  Stock (one vote per share) and will vote  together  with
holders of shares of Common Stock as a single class. In addition, the Investment
Company  Act of 1940,  as amended,  requires  that,  along with  approval of the
holders of a majority of any outstanding

                                       17

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.

              NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)

common  shares,  approval  of the  holders  of a  majority  of  any  outstanding
preferred shares,  voting separately as a class,  would be required to (a) adopt
any plan of reorganization  that would adversely affect the Preferred Stock, and
(b) take any action requiring a vote of security holders, including, among other
things,  changes  in the Fund's  subclassification  as a  closed-end  investment
company or changes in its fundamental investment restrictions.

      The Adviser has been  authorized to repurchase on behalf of the Fund up to
500,000  Common  Shares of the Fund in the open market,  whenever the shares are
trading at a discount  to net asset  value of ten per cent or more.  For the six
months  ended June 30, 2000,  the Fund  repurchased  56,700  shares at a cost of
$541,397  and at an average  discount  of 15.25%.  During the fiscal  year ended
December 31, 1999, the Fund repurchased 8,900 shares at a cost of $96,215 and at
an average discount of 10.36%. All shares repurchased have been retired.

4.  INVESTMENT  ADVISORY  AGREEMENT.  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 the Fund's 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 its affiliates.

      The Adviser has agreed not to accrue the management fee on the incremental
net assets  attributable  to the liquidation  value of the Cumulative  Preferred
Stock if the total  net asset  value  return of the  common  shares of the Fund,
including  distributions  and the  advisory fee subject to  reduction,  does not
exceed the stated dividend rate of the Cumulative  Preferred  Stock.  During the
six months  ended June 30,  2000,  the Fund has not  achieved a total  return in
excess of the stated  dividend rate and,  thus,  such  management  fees were not
earned.

5.  PORTFOLIO  SECURITIES.  Purchases and sales of securities for the six months
ended June 30, 2000, other than short-term  securities,  aggregated  $70,797,310
and $66,556,258, respectively.

6. TRANSACTIONS WITH AFFILIATES.  During the six months ended June 30, 2000, the
Fund paid brokerage  commissions  of $72,358 to Gabelli & Company,  Inc. and its
affiliates.



                                       18

<PAGE>

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                              FINANCIAL HIGHLIGHTS

<TABLE>
<CAPTION>
SELECTED DATA FOR A SHARE OF CAPITAL STOCK                   SIX MONTHS ENDED              YEAR ENDED DECEMBER 31,
OUTSTANDING THROUGHOUT EACH PERIOD:                            JUNE 30, 2000  ----------------------------------------------------
 OPERATING PERFORMANCE:                                         (UNAUDITED)    1999         1998        1997      1996       1995
                                                                -----------    ----         ----        ----      ----       ----
<S>                                                             <C>         <C>          <C>         <C>        <C>        <C>
   Net asset value, beginning of period .....................     $11.40      $11.45       $11.48      $11.08    $11.01     $10.60
                                                                  ------      ------       ------      ------    ------     ------
   Net investment income ....................................       0.34        0.51         0.53        0.49      0.49       0.53
   Net realized and unrealized gain (loss) on investments ...      (0.03)       0.77         0.65        1.23      0.31       1.03
                                                                  ------      ------       ------      ------    ------     ------
   Total from investment operations .........................       0.31        1.28         1.18        1.72      0.80       1.56
                                                                  ------      ------       ------      ------    ------     ------
   Increase in net assets from capital share transactions ...         --          --         0.01        0.01        --         --
                                                                  ------      ------       ------      ------    ------     ------
   Offering expenses charged to additional
     paid-in capital ........................................         --          --           --       (0.18)       --         --
                                                                  ------      ------       ------      ------    ------     ------
 DISTRIBUTIONS:
   PREFERRED SHARES
   Distributions from net investment income .................      (0.09)      (0.11)       (0.13)      (0.08)       --         --
   Distributions from net realized gains on investments .....      (0.06)      (0.19)       (0.17)      (0.11)       --         --
   COMMON SHARES
   Distributions from net investment income .................      (0.25)      (0.39)       (0.38)      (0.40)    (0.49)     (0.53)
   Distributions from net realized gains on investments .....      (0.15)      (0.62)       (0.50)      (0.56)    (0.24)     (0.56)
   Distributions in excess of net investment income .........         --       (0.00)(e)    (0.01)         --        --      (0.02)
   Distributions in excess of net realized gains ............         --       (0.02)       (0.03)         --        --      (0.01)
   Distributions from paid-in capital .......................         --          --           --          --        --      (0.03)
                                                                  ------      ------       ------      ------    ------     ------
   Total distributions ......................................      (0.55)      (1.33)       (1.22)      (1.15)    (0.73)     (1.15)
                                                                  ------      ------       ------      ------    ------     ------
   NET ASSET VALUE, END OF PERIOD ...........................     $11.16      $11.40       $11.45      $11.48    $11.08     $11.01
                                                                  ======      ======       ======      ======    ======     ======
   Market value, end of period ..............................     $ 9.75      $10.56       $11.25      $10.31    $ 9.25     $10.75
                                                                  ======      ======       ======      ======    ======     ======
   Total Net Asset Value Return+ (a) ........................        1.9%        9.4%         8.3%       13.5%      8.4%      15.0%
   Total Investment Return+ (b) .............................      (3.90)%       3.2%        18.4%       22.2%     (7.3)%     12.3%
 RATIOS TO AVERAGE NET ASSETS AND SUPPLEMENTAL DATA:
   Net assets, end of period (in 000's) .....................   $117,686    $120,179     $120,726    $122,382   $89,659    $89,137
   Net assets attributable to common shares,
     end of period (in 000's) ...............................    $87,686    $ 90,179     $ 90,726    $ 92,382   $89,659    $89,137
   Ratio of net investment income to average
     net assets attributable to common stock ................       6.09%(f)    4.35%        4.54%       4.23%     4.33%      4.60%
   Ratio of operating expenses to average
     net assets attributable to common stock (c) ............       1.47%(f)    1.80%        1.83%       1.68%     1.45%      1.56%
   Ratio of operating expenses to average total net assets ..       1.10%(f)    1.36%        1.38%       1.39%     1.45%      1.56%
   Portfolio turnover rate ..................................         93%        175%         149%        243%      114%       140%
 PREFERRED STOCK:
   Liquidation value, end of period (in 000's) ..............    $30,000    $ 30,000     $ 30,000    $  30,000       --         --
   Total shares outstanding (in 000's) ......................      1,200       1,200        1,200       1,200        --         --
   Asset coverage per share .................................        392%        401%         402%        408%       --         --
   Liquidation preference per share .........................    $ 25.00    $  25.00     $  25.00    $  25.00        --         --
   Average market value per share (d) .......................      23.86    $  25.36     $  26.84    $  25.69        --         --
</TABLE>
  ------------------------------
+   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 dividends. Total return for the period of less
    than one year is not annualized.
(a) Based on net asset value per share.
(b) Based on net asset value per share through March 31, 1995, the date of
    conversion of the Fund to closed-end status, and market value thereafter.
(c) The ratio of operating expenses to average net assets attributable to common
    stock during the fiscal year ended December 31, 1995 includes a current
    period expense associated with the conversion of the Fund to closed-end
    status. Without the conversion expense, this ratio would have been 1.28%.
    The ratio of operating expenses to average net assets attributable to common
    stock for the fiscal year ended December 31, 1997 does not include a
    reduction of expenses for custodian fee credits on cash balances maintained
    with the custodian. Including the custodian fee credit, the ratio of
    operating expenses to average net assets attributable to common stock for
    the year would have been 1.67%.
(d) Based on weekly prices.
(e) Amount represents less than $0.005 per share.
(f) Annualized.

                 See accompanying notes to financial statements.

                                       19

<PAGE>

                         AUTOMATIC DIVIDEND REINVESTMENT
                        AND VOLUNTARY CASH PURCHASE PLAN

     ENROLLMENT IN THE PLAN

     It  is  the  Policy  of  The  Gabelli  Convertible  Securities  Fund,  Inc.
("Convertible  Securities  Fund")  to  automatically  reinvest  dividends.  As a
"registered"   shareholder  you  automatically   become  a  participant  in  the
Convertible Securities Fund's Automatic Dividend Reinvestment Plan (the "Plan").
The  Plan  authorizes  the  Convertible  Securities  Fund  to  issue  shares  to
participants upon an income dividend or a capital gains distribution  regardless
of whether the shares are trading at a discount or a premium to net asset value.
All distributions to shareholders whose shares are registered in their own names
will be automatically  reinvested  pursuant to the Plan in additional  shares of
the  Convertible  Securities  Fund.  Plan  participants  may  send  their  stock
certificates to State Street Bank and Trust Company ("State  Street") to be held
in their  dividend  reinvestment  account.  Registered  shareholders  wishing to
receive their distribution in cash must submit this request in writing to:

                  The Gabelli Convertible Securities Fund, Inc.
                     c/o State Street Bank and Trust Company
                                  P.O. Box 8200
                              Boston, MA 02266-8200

     Shareholders  requesting this cash election must include the  shareholder's
name and  address as they  appear on the share  certificate.  Shareholders  with
additional questions regarding the Plan or requesting a copy of the terms of the
Plan may contact State Street at 1 (800) 336-6983.

     SHAREHOLDERS  WISHING TO LIQUIDATE  REINVESTED  SHARES held at State Street
Bank must do so in writing or by  telephone.  Please  submit your request to the
above mentioned address or telephone number.  Include in your request your name,
address  and  account  number.  The  cost  to  liquidate  shares  is  $2.50  per
transaction as well as the brokerage commission incurred.  Brokerage charges are
expected to be less than the usual brokerage  charge for such  transactions.  If
your  shares  are held in the name of a  broker,  bank or  nominee,  you  should
contact such institution.

     If such institution is not  participating in the Plan, your account will be
credited with a cash dividend.  In order to participate in the Plan through such
institution,  it may be  necessary  for you to have  your  shares  taken  out of
"street name" and  re-registered  in your own name.  Once registered in your own
name  your  dividends  will  be   automatically   reinvested.   Certain  brokers
participate  in the  Plan.  Shareholders  holding  shares  in  "street  name" at
participating   institutions  will  have  dividends  automatically   reinvested.
Shareholders  wishing a cash  dividend at such  institution  must contact  their
broker to make this change.

     The number of shares of Common Stock  distributed  to  participants  in the
Plan in lieu of cash dividends is determined in the following manner.  Under the
Plan,  whenever the market price of the  Convertible  Securities  Fund's  Common
Stock is equal to or exceeds  net asset  value at the time shares are valued for
purposes of determining the number of shares equivalent to the cash dividends or
capital  gains  distribution,  participants  are issued  shares of Common  Stock
valued at the greater of (i) the net asset value as most recently  determined or
(ii) 95% of the then current market price of the Convertible  Securities  Fund's
Common Stock.  The valuation date is the dividend or  distribution  payment date
or, if that date is not a New York Stock Exchange  trading day, the next trading
day. If the net asset value of the Common Stock at the time of valuation exceeds
the market price of the Common Stock,  participants will receive shares from the
Convertible   Securities  Fund  valued  at  market  price.  If  the  Convertible
Securities Fund should declare a dividend or capital gains distribution  payable
only in cash,  State Street will buy Common Stock in the open market,  or on the
New York Stock Exchange or elsewhere,  for the  participants'  accounts,  except
that State Street will  endeavor to  terminate  purchases in the open market and
cause the  Convertible  Securities  Fund to issue  shares at net asset value if,
following the  commencement  of such  purchases,  the market value of the Common
Stock exceeds the then current net asset value.

     The automatic  reinvestment  of dividends  and capital gains  distributions
will not  relieve  participants  of any  income tax which may be payable on such
distributions.  A participant in the Plan will be treated for Federal income tax
purposes  as  having  received,  on a  dividend  payment  date,  a  dividend  or
distribution in an amount equal to the cash the participant  could have received
instead of shares.

     The  Convertible  Securities  Fund reserves the right to amend or terminate
the Plan as applied to any  voluntary  cash  payments  made and any  dividend or
distribution paid subsequent to written notice of the change sent to the members
of the  Plan at least 90 days  before  the  record  date  for such  dividend  or
distribution.  The Plan also may be amended or  terminated by State Street on at
least 90 days' written notice to participants in the Plan.

     VOLUNTARY CASH PURCHASE PLAN

     The  Voluntary   Cash  Purchase  Plan  is  yet  another   vehicle  for  our
shareholders to increase their investment in the Convertible Securities Fund. In
order to participate in the Voluntary Cash Purchase Plan, shareholders must have
their shares registered in their own name.

     Participants  in the Voluntary Cash Purchase Plan have the option of making
additional  cash payments to State Street Bank and Trust Company for investments
in the  Convertible  Securities  Fund shares at the then current  market  price.
Shareholders  may send an amount  from $250 to  $10,000.  State  Street Bank and
Trust  Company will use these funds to purchase  shares in the open market on or
about the 1st and 15th of each month.  State Street Bank and Trust  Company will
charge each  shareholder who  participates  $0.75,  plus a pro rata share of the
brokerage  commissions.  Brokerage charges for such purchases are expected to be
less than the usual brokerage charge for such transactions. It is suggested that
any voluntary cash payments be sent to State Street Bank and Trust Company, P.O.
Box 8200,  Boston,  MA 02266-8200  such that State Street receives such payments
approximately  10 days before the investment  date.  Funds not received at least
five days before the investment date shall be held for investment until the next
purchase  date. A payment may be withdrawn  without charge if notice is received
by State Street Bank and Trust  Company at least 48 hours before such payment is
to be invested.

     For more information regarding the Dividend Reinvestment Plan and Voluntary
Cash Purchase  Plan,  brochures  are  available by calling (914)  921-5070 or by
writing directly to the Convertible Securities Fund.

                                       20

<PAGE>

                             DIRECTORS AND OFFICERS

                  THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
                    ONE CORPORATE CENTER, RYE, NY 10580-1434

DIRECTORS

Mario J. Gabelli, CFA
  CHAIRMAN & CHIEF INVESTMENT OFFICER,
  GABELLI ASSET MANAGEMENT INC.

E. Val Cerutti
  CHIEF EXECUTIVE OFFICER,
  CERUTTI CONSULTANTS, INC.

Felix J. Christiana
  FORMER SENIOR VICE PRESIDENT,
  DOLLAR DRY DOCK SAVINGS BANK

Anthony J. Colavita
  ATTORNEY-AT-LAW,
  ANTHONY J. COLAVITA, P.C.

Dugald A. Fletcher
  PRESIDENT, FLETCHER & COMPANY, INC.

Karl Otto Pohl
  FORMER PRESIDENT, DEUTSCHE BUNDESBANK

Anthony R. Pustorino
  CERTIFIED PUBLIC ACCOUNTANT
  PROFESSOR, PACE UNIVERSITY

Anthonie C. van Ekris
  MANAGING DIRECTOR,
  BALMAC INTERNATIONAL, INC.

Salvatore J. Zizza
  CHAIRMAN, THE BETHLEHEM CORP.

OFFICERS AND PORTFOLIO MANAGERS

Mario J. Gabelli, CFA
  PRESIDENT & CHIEF INVESTMENT OFFICER

Bruce N. Alpert
  VICE PRESIDENT & TREASURER

Peter W. Latartara
  VICE PRESIDENT

A. Hartswell Woodson, III
  ASSOCIATE PORTFOLIO MANAGER

James E. McKee
  SECRETARY

INVESTMENT ADVISOR

Gabelli Funds, LLC
One Corporate Center
Rye, New York 10580-1434

CUSTODIAN, TRANSFER AGENT AND REGISTRAR

State Street Bank and Trust Company

COUNSEL

Skadden, Arps, Slate, Meagher & Flom LLP

STOCK EXCHANGE LISTING
                         Common      8.00% Preferred
                        --------     ---------------
NYSE-Symbol:               GCV           GCV Pr
Shares Outstanding:     7,855,945       1,200,000

The Net Asset Value appears in the Publicly Traded Funds column, under the
heading "Convertible Securities Funds," in Sunday's The New York Times and in
Monday's The Wall Street Journal. It is also listed in Barron's Mutual
Funds/Closed End Funds section under the heading "Convertible Securities Funds."

The Net Asset Value may be obtained each day by calling (914) 921-5071.

------------------------------------------------------
   For general information about the Gabelli Funds,
   call 1-800-GABELLI (1-800-422-3554), fax us at
   914-921-5118, visit Gabelli Funds'
   Internet homepage at: HTTP://WWW.GABELLI.COM,
   or e-mail us at: [email protected]
------------------------------------------------------

--------------------------------------------------------------------------------
Notice  is hereby  given in  accordance  with  Section  23(c) of the  Investment
Company Act of 1940, as amended,  that the Convertible  Securities Fund may from
time to time  purchase  shares of its common  stock in the open  market when the
Convertible Securities Fund shares are trading at a discount of 10% or more from
the net asset value of the shares.  The  Convertible  Securities  Fund may also,
from time to time, purchase shares of its Cumulative Preferred Stock in the open
market  when the shares are trading at a discount  to the  Liquidation  Value of
$25.00.
--------------------------------------------------------------------------------
<PAGE>
THE GABELLI CONVERTIBLE SECURITIES FUND, INC.
ONE CORPORATE CENTER
RYE, NY  10580-1434
(914) 921-5070
HTTP://WWW.GABELLI.COM

                                                              SEMI-ANNUAL REPORT
                                                                   JUNE 30, 2000

                                                                     GBFCS 06/00


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