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

                                   FORM N-CSR

                          CERTIFIED SHAREHOLDER REPORT
                                       OF
                   REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number: 33-4424

Name of Registrant: VANGUARD CONVERTIBLE SECURITIES FUND

Address of Registrant: P.O. BOX 2600, VALLEY FORGE, PA 19482

Name and address of agent for service: R. GREGORY BARTON
                                       P.O. BOX 876
                                       VALLEY FORGE, PA 19482

Registrant's telephone number, including area code: (610) 669-1000

Date of fiscal year end:  November 30

Date of reporting period:  December 1, 2002 - November 30, 2003

ITEM 1: Reports to Shareholders



VANGUARD(R) CONVERTIBLE SECURITIES FUND

NOVEMBER 30, 2003

[GRAPHIC]

ANNUAL REPORT

THE VANGUARD GROUP(R) LOGO


HOW TO READ YOUR FUND REPORT

This report contains information that can help you evaluate your investment.  It
includes  details  about your fund's  return and presents data and analysis that
provide insight into the fund's performance and investment approach.

By reading the letter from Vanguard's chairman,  John J. Brennan,  together with
the letter from the managers who select  securities for your fund, you'll get an
understanding  of how the fund invests and how the market  environment  affected
its  performance.   The  statistical  information  that  follows  can  help  you
understand how the fund's performance and characteristics stack up against those
of similar funds and market benchmarks.

It's  important  to keep in mind  that  the  opinions  expressed  by  Vanguard's
investment  managers  are just  that:  informed  opinions.  They  should  not be
considered  promises or advice.  The opinions,  like the  statistics,  cover the
period  through the date on the cover of this report.  As things  change--and in
the financial markets you can be certain only of change--an investment manager's
job is to evaluate  new  information  and make  adjustments,  if  necessary.  Of
course, the risks of investing in the fund are spelled out in the prospectus.

Frequent  updates on the fund's  performance and  information  about some of its
holdings are available on Vanguard.com(R).

- --------------------------------------------------------------------------------
CONTENTS

 1 letter from the chairman
 6 report from the advisor
10 fund profile
11 glossary of investment terms
13 performance summary
14 your fund's after-tax returns
15 about your fund's expenses
16 financial statements
26 advantages of vanguard.com
- --------------------------------------------------------------------------------
SUMMARY

*    Vanguard Convertible Securities Fund posted a return of 28.1% during the 12
     months ended November 30, 2003.
*    The fund  outpaced all of its  comparative  measures by several  percentage
     points.
*    During the fiscal year, common stocks rebounded and bonds with lower credit
     ratings surged, providing a favorable environment for hybrid convertibles.
- --------------------------------------------------------------------------------
Want less clutter in your mailbox?  Just register with  Vanguard.com  and opt to
get fund reports online.



LETTER FROM THE CHAIRMAN

Fellow Shareholder,

During  the 12 months  ended  November  30,  2003,  the stock  market  rebounded
strongly from last year's bear-market lows. Convertible securities,  which offer
some of the upside potential of stocks and some of the risk-reducing  properties
of bonds,  were particularly  attractive to investors,  who-- perhaps mindful of
rebounds  that had petered out in previous  years--drove  up the prices of these
securities, generating total returns higher than those of common stocks. In this
environment,  Vanguard  Convertible  Securities  Fund  earned  28.1%,  its  best
fiscal-year result in 12 years.

[PICTURES OF JOHN J. BRENNAN]



- -------------------------------------------------------
2003 TOTAL RETURNS                    FISCAL YEAR ENDED
                                            NOVEMBER 30
- -------------------------------------------------------
VANGUARD CONVERTIBLE SECURITIES FUND              28.1%
CS First Boston Convertibles Index                23.7
Average Convertible Securities Fund*              22.1
Wilshire 5000 Index                               19.0
- -------------------------------------------------------
*Derived from data provided by Lipper Inc.

As the table at left  shows,  your  fund's  total  return  (capital  change plus
reinvested   distributions)  was  well  above  those  of  its  main  comparative
measures--the  unmanaged Credit Suisse First Boston Convertible Securities Index
and the average mutual fund peer-- and about 9 percentage points higher than the
return of the broad U.S.  stock  market,  as measured by the Wilshire 5000 Total
Market Index.  The per-share  components of your fund's total  return--dividends
and  change in net asset  value--appear  on page 5. The  fund's  yield at fiscal
year-end  was 3.73%,  36 basis  points  lower  than at the start of the  period.

STOCKS SURGED ON POSITIVE ECONOMIC AND FINANCIAL REPORTS

The  prospect of war with Iraq and a spate of weak  economic  reports  depressed
U.S. stock prices in the opening months of the fiscal year.

                                       1




- --------------------------------------------------------------------------------
If you hold the fund in a taxable  account,  please  see page 14 for a report on
the fund's after-tax returns.
- --------------------------------------------------------------------------------

Once the start of combat dissipated some uncertainties, however, investors' mood
turned upbeat,  igniting a robust stock market rally. In the fiscal year's final
weeks,  stocks were  propelled by reports that  productivity  and  manufacturing
activity were growing rapidly,  while profits at U.S.  corporations  rose nearly
30% in the third calendar quarter from their year-earlier levels.

For the 12 months,  the broad  market,  as measured by the Wilshire  5000 Index,
returned 19.0%. Within  market-capitalization  ranges,  gains were substantially
similar for growth and value stocks (i.e.,  stocks that sport premium prices for
their earnings growth potential versus those having  bargain-basement price tags
relative to earnings, book value, or other measures). A large divergence between
small- and large-company stock returns, however,  suggested that investors had a
renewed  interest in riskier stocks.  The 36.3% return of the small-cap  Russell
2000 Index was more than  double the  result of the large- and  mid-cap  Russell
1000 Index.

Stock gains were equally impressive in many international markets,  particularly
those in the Pacific Rim nations and emerging-markets  countries. For U.S.-based
investors, the weakening of the dollar relative to most major currencies boosted
returns from abroad.

BOND INVESTORS WERE REWARDED FOR TAKING GREATER RISKS

As in the  stock  market,  the best  returns  in the bond  market  came from the
riskiest securities.  Returns of corporate bonds exceeded those of U.S. Treasury
securities with comparable maturities, while below-investment-grade bonds posted
spectacular  results that topped the gain of the broad stock market.  The Lehman
Brothers High Yield Bond Index,  which tracks the performance of bonds issued by
companies with "junk" credit ratings, returned 27.9%. The yield of the benchmark
10-year  Treasury note rose 12 basis points (0.12  percentage  point) during the
period to 4.33%.  For the 12 months,  the Lehman Aggregate Bond Index, a measure
of the taxable  investment-grade bond market,  returned 5.2%, as rising interest
income offset falling bond prices.

The story was  different  among the  shortest-maturity  debt  securities,  whose
yields are influenced more strongly by the Federal Reserve

                                       2


- ------------------------------------------------------------------------------
MARKET BAROMETER                                 AVERAGE ANNUAL TOTAL RETURNS
                                               PERIODS ENDED NOVEMBER 30, 2003
                                        --------------------------------------
                                              ONE           THREE         FIVE
                                             YEAR           YEARS        YEARS
- ------------------------------------------------------------------------------
STOCKS
Russell 1000 Index (Large-caps)             16.9%           -4.9%         0.2%
Russell 2000 Index (Small-caps)             36.3             8.5          8.0
Wilshire 5000 Index (Entire market)         19.0            -3.3          0.8
MSCI All Country World Index
 ex USA (International)                     27.1            -2.3          0.7
- ------------------------------------------------------------------------------
BONDS
Lehman Aggregate Bond Index                  5.2%            7.9%         6.5%
 (Broad taxable market)
Lehman Municipal Bond Index                  6.7             7.2          5.7
Citigroup 3-Month Treasury Bill Index        1.1             2.4          3.6
==============================================================================
CPI
Consumer Price Index                         1.8%            2.0%         2.4%
- ------------------------------------------------------------------------------

Board's  actions  than by market  forces.  In June,  the Fed  reduced its target
federal-funds rate by 25 basis points to 1.00%, the lowest level since 1958. The
yield of the  3-month  Treasury  bill,  a fair proxy for money  market  interest
rates,  fell to 0.81% in mid-June,  then rose modestly to end the fiscal year at
0.93%,  28 basis points lower than its year-ago level.

YIELD SPREADS NARROWED, BENEFITING CONVERTIBLES

The  Convertible  Securities  Fund's  28.1%  return,  a  stellar  result in both
absolute  and  relative  terms,  was  bolstered  by several  factors.  As hybrid
securities with some  characteristics of bonds and some of stocks,  convertibles
benefited from both the resurgence of stocks, particularly small-cap stocks, and
the  narrowing  of the credit  yield  spread,  as prices for riskier debt issues
surged well ahead of those for investment-grade  securities.  (Convertibles tend
to be issued by smaller companies with lower credit ratings, though several blue
chips floated offerings in the past year.)

In addition, the technology and telecommunications industries-- the very sectors
that helped  drag down your fund's  performance  last fiscal  year--boosted  the
fund's  absolute  returns  during  fiscal 2003.  Compared  with its  benchmarks,
however,  your  fund was  light in these  sectors  earlier  in the  year,  which
dampened performance relative to the index during the first six months.

Most important, the fund's investment advisor, Oaktree Capital Management, added
value through its security  selection in several sectors,  as the prices of some
of its long-term holdings skyrocketed.  For details on individual securities and
fund performance,  see the Report from the Advisor,  which begins on page 6.

                                       3


THE FUND HAS DELIVERED SOLID LONG-TERM PERFORMANCE

Of course,  a 28.1% one-year  return is  exceptional  and should not be expected
consistently from any fund,  whether it invests in convertibles or another asset
class. But the fund has also done well over longer periods.  As the accompanying
table shows, over the past decade, your fund delivered a solid annualized return
of  8.7%.  This  result  was  roughly  on par  with  those  of  its  comparative
standards--slightly  outpacing  the  gain  of the  average  competing  fund  but
slightly  lagging that of the benchmark  index--and  not far below the return of
common  stocks.  However,  your fund  generated  this  solid  return  with lower
volatility  than any of these  measures.  Unlike  some fund  peers  that will on
occasion invest in other asset classes,  your fund invests almost exclusively in
convertible  bonds and some  convertible  preferred  stocks.  In  addition,  the
advisor carefully screens companies for creditworthiness.

We  believe  that the  Convertible  Securities  Fund will  continue  to  perform
competitively  because of both the investment skills of the fund advisor and our
cost advantage. In fact, Vanguard's expense ratios are typically just a fraction
of those of other fund companies, which has two key implications. First, more of
our funds' returns go to  shareholders.  Second,  our competitors  must generate
gross returns higher than ours to match our net returns--a  difficult  hurdle to
surmount year after year. The cost of investing--unlike  other factors,  such as
the performance of the financial  markets--is within your control. (A comparison
of your fund's cost with the average cost of its competitors is provided on page
15.)


- -----------------------------------------------------------------------
TOTAL RETURNS                                           TEN YEARS ENDED
                                                      NOVEMBER 30, 2003
- -----------------------------------------------------------------------
                                      AVERAGE            FINAL VALUE OF
                                       ANNUAL                 A $10,000
                                       RETURN        INITIAL INVESTMENT
- -----------------------------------------------------------------------
Convertible Securities Fund              8.7%                   $23,051
CS First Boston Convertibles Index       9.1                     23,930
Average Convertible Securities Fund      8.4                     22,494
Wilshire 5000 Index                     10.3                     26,648
- -----------------------------------------------------------------------


BALANCE NEVER GOES OUT OF STYLE

The past several years have been a roller-coaster ride for investors,  as one of
the  longest  bull  markets in  history  was  followed  by one of the worst bear
markets for stocks,  which in turn underwent a remarkable  resurgence this year.
Although  probably no investor  escaped  unscathed,  those who were  diversified
across and within asset classes weathered

                                       4


the ride better than those who were not.  Volatile markets  reinforce the virtue
of the time-honored principle of balance--holding  stocks, bonds, and short-term
reserves in  allocations  appropriate  for your goals,  time  horizon,  and risk
tolerance.  Because no one can  accurately  predict  what the future will bring,
building and holding a balanced  portfolio is the most prudent course.  Vanguard
Convertible Securities Fund can play a valuable role in such a portfolio.

I feel  compelled  to close this  letter with an  assurance  that the reports of
late-trading and market-timing at some competing investment management firms are
as  shocking--and  upsetting--to  us as they no doubt are to you.  Vanguard  has
policies  and  procedures  in place to identify  and deter such  behavior.  More
important,  I believe that Vanguard  shareholders  can be confident  both in the
integrity of our excellent crew and in the benefits provided by our client-owned
corporate  structure--a  structure that perfectly aligns our day-to-day  efforts
with your long-term financial goals.

Thank you for entrusting us with your assets.

Sincerely,


/S/JOHN J. BRENNAN
John J. Brennan
CHAIRMAN AND CHIEF EXECUTIVE OFFICER

DECEMBER 11, 2003



- --------------------------------------------------------------------------------
YOUR FUND'S PERFORMANCE AT A GLANCE NOVEMBER 30, 2002-NOVEMBER 30, 2003

                                                         DISTRIBUTIONS PER SHARE
                                                        ------------------------
                                  STARTING       ENDING       INCOME     CAPITAL
                               SHARE PRICE  SHARE PRICE    DIVIDENDS       GAINS
- --------------------------------------------------------------------------------
Convertible Securities Fund         $10.57       $13.05        $0.41       $0.00
- --------------------------------------------------------------------------------

                                       5





REPORT FROM THE ADVISOR

Vanguard  Convertible  Securities  Fund performed well during the second half of
fiscal 2003,  taking the full year's  absolute and relative  performance to high
levels.  For the 12 months,  the fund earned  28.1%,  outperforming  its primary
benchmark,  the CS First  Boston  Convertibles  Index  (+23.7%),  as well as the
Goldman  Sachs/Bloomberg  U.S.  Convertible 100 Index  (+16.0%),  another widely
followed  convertibles  benchmark.  The fund also  outperformed  the  Standard &
Poor's  500  Index  and  most  of  the  widely   followed  bond   indexes.   Our
outperformance  of the S&P 500 was largely a function of, first, our exposure to
convertibles  from small- and  mid-capitalization  companies  and,  second,  the
tightening  of credit  spreads,  which  boosted the  valuations  of  convertible
securities.  This  performance  advantage  versus  the  S&P  500  should  not be
considered  sustainable,  as convertibles normally lag in an equity advance.

THE INVESTMENT ENVIRONMENT

The second half of fiscal 2003  repeated  many of the trends from the first half
of the year. The two most dominant themes were the continuation of credit-spread
tightening  and the very  robust  issuance  of new  convertible  securities.  As
discussed in May's semiannual  report,  the tightening was primarily a result of
investors'  becoming  more  optimistic  about  both the  economy  and  corporate
fundamentals.  Fundamentals have improved as corporations  enhance their balance
sheets  through  transactions  such as  refinancing  at lower  rates and  longer
maturities.  New convertible issuance was also an important factor during fiscal
2003, as the year  produced the  second-highest  dollar volume on record:  $82.3
billion from 252 deals.  This  compares with the prior year's total of 115 deals
raising $52.3 billion.

- --------------------------------------------------------------------------------
INVESTMENT  PHILOSOPHY

The advisor  believes  that a reasonable  level of current  income and long-term
growth in capital can be achieved by investing in a broadly diversified group of
convertible  securities that provide  attractive  combinations of current income
and  potential  for price  appreciation  from their  convertibility  into common
stock.
- --------------------------------------------------------------------------------

Significant  convertible  issuers in fiscal 2003 included  General  Motors ($4.0
billion), Wells Fargo ($3.0 billion), American Express ($2.0 billion),

                                       6



Schlumberger  ($1.4  billion),  and Walt Disney ($1.3  billion).  Other deals we
especially   liked   came   from   Freeport-McMoRan   Copper  &  Gold,   Valeant
Pharmaceuticals  International,  Primus Telecom, and Continental Airlines. While
the  dollar  volume  of new  deals  did  not set a  record,  the  number  of new
securities  did eclipse  the 208  convertibles  issued in 2001.  The past year's
issuance  was well  diversified  by industry,  issuer,  and credit  quality.  An
extraordinarily  high proportion came in the form of coupon-bearing  convertible
bonds--approximately  85%, compared with the previous  five-year average of 42%.
We always prefer convertible bonds over other convertible  structures,  and thus
we welcome this trend.

Demand for convertibles  remained quite strong throughout the year, as investors
appreciated the securities' benefits:  the potential for appreciation when their
underlying common stocks move upward;  relative protection when their underlying
stocks  decline;  higher current  yields;  and  diversification.  The demand for
attractively  priced new deals currently exceeds supply, and thus many deals are
on an allocation basis.

THE FUND'S SUCCESSES

Our absolute performance  continued to be influenced by the tightening of credit
spreads, but most of our performance advantage over the fund's benchmarks during
fiscal 2003 came from security selection.  In particular,  we saw outperformance
in  our   overweighted   positions  and  in  many  of  our  small-  and  mid-cap
convertibles.  (Small- and mid-cap stocks posted  significant gains during 2003,
certainly   driving   up  the  prices  of  many   convertibles.)   Some  of  our
top-performing  issues  included  Freeport-McMoRan,  RF  Micro  Devices,  Nextel
Communications, Navistar International, and Teva Pharmaceutical.

We also benefited from our aggressive buying around the middle of the year. This
was a period of relative price weakness  caused by a dramatic  oversupply of new
convertibles,  overpricing  of some of these deals,  and  adjustment  to the new
dividend tax environment. This last factor was quite disruptive to the market as
corporations  reevaluated  their common  dividend  policies  and, in many cases,
declared their first dividends or announced significant dividend increases.  For
companies with  outstanding  convertibles,  any  significant  increase in common
dividends diminishes the convertible's yield advantage and reduces the intrinsic
value of the security.  The impact on our holdings from this factor was minimal,
but we took  advantage  of buying  opportunities  as they  occurred.

                                       7


THE FUND'S SHORTFALLS

While we are very  pleased with the  Convertible  Securities  Fund's  return for
fiscal 2003, our  underweighting  of the  tech/telecom  area earlier in the year
proved to be a drag on our  relative  results.  With spreads  tightening,  these
highly  depressed  convertibles  produced some dramatic gains. The fund was also
underweighted  in  the  automobile  industry,  specifically  in the  Ford  6.50%
convertible preferred, which did well and was the heaviest-weighted issue in the
CS First Boston Convertibles Index.

OUR POSITION

As we enter the new year, we are slightly  accelerating our normal sell strategy
because  the  prices  of many  convertibles,  especially  those  from  small-cap
technology  and  telecom  firms,  have  advanced  to  140%-160%  of par.  We are
redeploying  our sale proceeds into more balanced,  higher-yielding  issues that
will provide more  downside  protection in the event of a market  pullback.  The
convertible  market's  weighted-average  delta (i.e., degree of participation in
the appreciation of underlying  stocks) is higher than it was a year or two ago,
due to the  significant  rally in equities.  Not counting a modest cash reserve,
our portfolio remains fully invested, with an approximate mix of 91% convertible
bonds and 9% convertible  preferreds.  We are very  comfortable  with the credit
profile of the portfolio and remain  optimistic about the near-term  outlook for
the convertible securities market.

LARRY KEELE, PORTFOLIO MANAGER
OAKTREE CAPITAL MANAGEMENT, LLC

DECEMBER 10, 2003

                                       8



- --------------------------------------------------------------------------------
PORTFOLIO CHANGES                            FISCAL YEAR ENDED NOVEMBER 30, 2003

NEW HOLDINGS                          COMMENTS
- --------------------------------------------------------------------------------
Valeant  Pharmaceuticals              Very attractive  convertibles with  above-
International (formerly               average  call  protection. We  believe the
ICN   Pharmaceuticals)                stock  is  priced  attractively,  and  the
(3.0% convertible note due            company  has  a  new  management  team.
8/16/2010; 4.0% convertible
note due 11/15/2013)
- --------------------------------------------------------------------------------
Fisher  Scientific  International     A solid  growth company with an attractive
convertible  (2.50%  convertible      that  carries  seven  years of full call
note due 10/01/2023)                  protection.
- --------------------------------------------------------------------------------
Primus  Telecommunications            A  statistically  cheap  convertible  with
(3.75% convertible note due           improving company fundamentals.
9/15/2010)
- --------------------------------------------------------------------------------
REDUCTIONS
- --------------------------------------------------------------------------------
Navistar   International*             The  security  reached  our  price target.
(2.50% convertible note due
12/15/2007)
- --------------------------------------------------------------------------------
Teva  Pharmaceutical*                 The  bonds  hit  our price  target in  the
(0.75% convertible note due           low 140s.
8/15/2021)
- --------------------------------------------------------------------------------
Sealed Air*                           The security reached our price  target and
  ($2.00 preferred)                   was eventually called by the company.
- --------------------------------------------------------------------------------
Freeport-McMoRan                      This top-performing security has entered
(7.0% convertible note due 2/11/2011) our targeted Copper & Gold sell range. We
                                      are reducing our weighting.
- --------------------------------------------------------------------------------
*Eliminated from portfolio.


SEE PAGE 16 FOR A COMPLETE LIST OF THE FUND'S HOLDINGS.

                                       9



FUND PROFILE                                                    AS OF 11/30/2003

This Profile provides a snapshot of the fund's  characteristics,  compared where
appropriate with a broad market index. Key terms are defined on pages 11 and 12.


CONVERTIBLE SECURITIES FUND
- -------------------------------------------------------
PORTFOLIO CHARACTERISTICS

Number of Securities                                100
Yield                                              3.7%
Conversion Premium                                51.8%
Average Weighted Maturity                     5.9 years
Average Coupon                                     3.8%
Average Quality                                      B+
Average Duration                              4.9 years
Foreign Holdings                                   8.3%
Turnover Rate                                      127%
Expense Ratio                                     0.84%
Short-Term Reserves                                  4%
- -------------------------------------------------------

- --------------------------------------
DISTRIBUTION BY CREDIT QUALITY
  (% OF FIXED INCOME PORTFOLIO)

Aaa/AAA                             0%
Aa/AA                               0
A/A                                 2
Baa/BBB                            11
Ba/BB                              10
B/B                                44
Below B/B                          14
Not Rated                          19
- --------------------------------------
Total                             100%
- --------------------------------------

- -------------------------------------------------------
TEN LARGEST HOLDINGS (% OF TOTAL NET ASSETS)

Tyco International Ltd.                            3.8%
  (conglomerate)
Valeant Pharmaceuticals International              3.1
  (pharmaceuticals)
Fisher Scientific International Inc.               2.9
  (retail)
Primus Telecommunications Group, Inc.              2.8
  (telecommunications)
Continental Airlines, Inc.                         2.7
  (air transportation)
Echostar Communications Corp.                      2.7
  (telecommunications)
Nortel Networks Corp.                              2.5
  (telecommunications)
Veeco Instruments, Inc.                            2.5
  (electronics)
Navistar Financial Corp.                           2.4
  (financial services)
Service Corp. International                        2.2
  (consumer services)
- -------------------------------------------------------
Top Ten                                           27.6%
- -------------------------------------------------------
The "Ten Largest  Holdings"  excludes any temporary cash  investments and equity
index products.

- ----------------------------------------------
VOLATILITY MEASURES
                                      WILSHIRE
                         FUND             5000
- ----------------------------------------------
R-Squared                0.69             1.00
Beta                     0.55             1.00
- ----------------------------------------------

- ----------------------------------------------
DISTRIBUTION BY MATURITY
  (% OF FIXED INCOME PORTFOLIO)

Under 1 Year                                0%
1--5 Years                                 44
5--10 Years                                53
10--20 Years                                3
20--30 Years                                0
Over 30 Years                               0
- ----------------------------------------------
Total                                     100%
- ----------------------------------------------



                                               VISIT OUR WEBSITE AT VANGUARD.COM
                                         FOR REGULARLY UPDATED FUND INFORMATION.

                                       10


- ----------------------------------------------
SECTOR DIVERSIFICATION (% OF PORTFOLIO)

Auto & Transportation                       7%
Consumer Discretionary                     21
Consumer Staples                            0
Financial Services                         10
Health Care                                16
Integrated Oils                             0
Other Energy                                4
Materials & Processing                      2
Producer Durables                           7
Technology                                 17
Utilities                                   7
Other                                       5
- ----------------------------------------------
Cash Investments                            4%
- ----------------------------------------------




GLOSSARY OF INVESTMENT TERMS

AVERAGE COUPON.  The average  interest rate paid on the fixed income  securities
held by a fund. It is expressed as a percentage of face value.
- --------------------------------------------------------------------------------
AVERAGE DURATION.  An estimate of how much the value of the bonds held by a fund
will fluctuate in response to a change in interest  rates.  To see how the value
could change,  multiply the average duration by the change in rates. If interest
rates  rise by 1  percentage  point,  the  value of the  bonds in a fund with an
average duration of five years would decline by about 5%. If rates decrease by a
percentage point, the value would rise by 5%.
- --------------------------------------------------------------------------------
AVERAGE QUALITY.  An indicator of credit risk, this figure is the average of the
ratings  assigned to a fund's holdings by credit-rating  agencies.  The agencies
make  their  judgment  after   appraising  an  issuer's   ability  to  meet  its
obligations.  Quality is graded on a scale,  with Aaa or AAA indicating the most
creditworthy bond issuers.
- -------------------------------------------------------------------------------
AVERAGE  WEIGHTED  MATURITY.  The  average  length of time  until  fixed  income
securities held by a fund reach maturity and are repaid. The figure reflects the
proportion of fund assets represented by each security.
- --------------------------------------------------------------------------------

                                       11


GLOSSARY OF INVESTMENT TERMS (CONTINUED)

- -------------------------------------------------------------------------------
BETA. A measure of the magnitude of a fund's past  share-price  fluctuations  in
relation to the ups and downs of a given market  index.  The index is assigned a
beta of 1.00.  Compared with a given index, a fund with a beta of 1.20 typically
would have seen its share  price rise or fall by 12% when the index rose or fell
by 10%. A fund's beta should be reviewed in conjunction  with its R-squared (see
definition  below).  The  lower the  R-squared,  the less  correlation  there is
between the fund and the index, and the less reliable beta is as an indicator of
volatility.
- -------------------------------------------------------------------------------
CONVERSION PREMIUM.  The average percentage by which the weighted average market
price of the convertible  securities held by a fund exceeds the weighted average
market price of their  underlying  common  stocks.  For  example,  if a stock is
trading at $25 per share and a bond  convertible  into the stock is trading at a
price  equivalent  to $30 per  share of stock,  the  conversion  premium  is 20%
($54$25520%).
- -------------------------------------------------------------------------------
EXPENSE  RATIO.  The  percentage of a fund's  average net assets used to pay its
annual  administrative  and advisory  expenses.  These expenses  directly reduce
returns to investors.
- -------------------------------------------------------------------------------
FOREIGN  HOLDINGS.  The  percentage  of  a  fund's  net  assets  represented  by
securities of companies based outside the United States.
- -------------------------------------------------------------------------------
R-SQUARED.  A measure of how much of a fund's past  returns can be  explained by
the returns  from the market in general,  as  measured  by a given  index.  If a
fund's total returns were precisely  synchronized  with an index's returns,  its
R-squared  would be 1.00.  If the fund's  returns  bore no  relationship  to the
index's returns, its R-squared would be 0.
- -------------------------------------------------------------------------------
SHORT-TERM  RESERVES.  The  percentage  of a fund  invested  in  highly  liquid,
short-term securities that can be readily converted to cash.
- -------------------------------------------------------------------------------
TURNOVER  RATE. An indication of the fund's  trading  activity.  Funds with high
turnover  rates  incur  higher  transaction  costs  and  may be more  likely  to
distribute capital gains (which may be taxable to investors).
- -------------------------------------------------------------------------------
YIELD.  A snapshot of a fund's  income from interest and  dividends.  The yield,
expressed  as a  percentage  of the fund's net asset  value,  is based on income
earned over the past 30 days and is  annualized,  or  projected  forward for the
coming year.
- -------------------------------------------------------------------------------

                                       12


PERFORMANCE SUMMARY                                             AS OF 11/30/2003

All of the returns in this report  represent past  performance,  which cannot be
used to predict future returns that may be achieved by the fund. Note, too, that
both share price and return can fluctuate  widely.  An investor's  shares,  when
redeemed,  could be worth more or less than their  original  cost.  The  returns
shown do not reflect taxes that a shareholder would pay on fund distributions or
on the redemption of fund shares.

CONVERTIBLE SECURITIES FUND
- --------------------------------------------------------------------------------
CUMULATIVE PERFORMANCE NOVEMBER 30, 1993-NOVEMBER 30, 2003

                                             CS FIRST       AVERAGE
                                               BOSTON   CONVERTIBLE
               CONVERTIBLE    WILSHIRE   CONVERTIBLES    SECURITIES
           SECURITIES FUND  5000 INDEX          INDEX         FUND*

199311               10000       10000          10000         10000
199402               10202       10265          10290         10341
199405                9558        9991           9712          9858
199408                9905       10455          10068         10182
199411                9565       10038           9613          9777
199502                9696       10807           9989         10078
199505               10216       11753          10795         10707
199508               10997       12750          11707         11360
199511               11201       13658          11917         11655
199602               11466       14503          12577         12303
199605               12268       15434          13268         12818
199608               12124       14945          12911         12649
199611               12867       17018          13746         13506
199702               13169       17719          14002         13987
199705               13561       18926          14492         14499
199708               14606       20516          15742         15543
199711               14772       21690          15861         15717
199802               15804       23828          16658         16691
199805               15939       24644          16912         16973
199808               13377       21064          14574         14772
199811               14453       25627          16077         16017
199902               14800       27245          16938         16689
199905               15983       29003          18202         17857
199908               16508       29252          18792         18207
199911               18044       31314          20990         19839
200002               22232       33016          26316         23954
200005               20215       31997          23181         22154
200008               23003       35102          25783         24296
200011               18995       29495          21314         20567
200102               19991       28214          21790         21230
200105               20445       28764          22185         21332
200108               19503       26132          20791         19504
200111               19751       26255          20556         19586
200202               18511       25852          19971         19685
200205               18874       25364          20224         19730
200208               17197       21805          17966         17548
200211               17998       22391          19351         18428
200302               18170       20269          19660         18827
200305               20184       23534          21930         20582
200308               21005       25045          22536         20795
200311               23051       26648          23930         22494
- --------------------------------------------------------------------------------
                                      AVERAGE ANNUAL TOTAL RETURNS
                                   PERIODS ENDED NOVEMBER 30, 2003
                                ------------------------------------ FINAL VALUE
                                    ONE         FIVE       TEN      OF A $10,000
                                   YEAR        YEARS      YEARS       INVESTMENT
- --------------------------------------------------------------------------------
Convertible Securities Fund      28.07%        9.79%      8.71%          $23,051
Wilshire 5000 Index              19.01         0.78      10.30            26,648
CS First Boston
  Convertibles Index             23.66         8.28       9.12            23,930
Average Convertible
  Securities Fund*               22.06         7.03       8.44            22,494
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
FISCAL-YEAR TOTAL RETURNS (%) NOVEMBER 30, 1993-NOVEMBER 30, 2003

                                                          CS FIRST
                        CONVERTIBLE                        BOSTON
                        SECURITIES                      CONVERTIBLES
                           FUND                             INDEX

1994                       -4.4                             -3.9
1995                       17.1                               24
1996                       14.9                             15.3
1997                       14.8                             15.4
1998                       -2.2                              1.4
1999                       24.8                             30.6
2000                        5.3                              1.5
2001                          4                             -3.6
2002                       -8.9                             -5.9
2003                       28.1                             23.7
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
AVERAGE ANNUAL TOTAL RETURNS FOR PERIODS ENDED SEPTEMBER 30, 2003

This table  presents  average annual total returns  through the latest  calendar
quarter--rather  than  through  the end of the  fiscal  period.  Securities  and
Exchange Commission rules require that we provide this information.

                                                                TEN YEARS
                                           ONE     FIVE  ----------------------
                        INCEPTION DATE    YEAR    YEARS   CAPITAL  INCOME  TOTAL
- --------------------------------------------------------------------------------
Convertible Securities Fund   6/17/1986  25.60%   9.72%     3.60%   4.54%  8.14%
- --------------------------------------------------------------------------------
*Derived from data provided by Lipper Inc.
Note: See Financial  Highlights  table on page 22 for dividend and capital gains
information.

                                       13



YOUR FUND'S AFTER-TAX RETURNS

This table  presents  returns  for your fund both  before and after  taxes.  The
after-tax returns are shown in two ways: (1) assuming that an investor owned the
fund during the entire  period and paid taxes on the fund's  distributions,  and
(2) assuming  that an investor paid taxes on the fund's  distributions  and sold
all shares at the end of each period.

Calculations are based on the highest  individual federal income tax and capital
gains tax rates in effect at the times of the distributions and the hypothetical
sales. State and local taxes were not considered.  After-tax returns reflect the
reduced tax rates on ordinary income (including  qualified  dividend income) and
short-term  capital  gains that became  effective as of January 1, 2003,  and on
long-term  capital gains  realized on or after May 6, 2003.  Qualified  dividend
income is based on estimates  for calendar year 2003.  (In the example,  returns
after the sale of fund  shares may be higher than those  assuming no sale.  This
occurs when the sale would have produced a capital loss. The calculation assumes
that the investor received a tax deduction for the loss.)

Please note that your actual after-tax returns will depend on your tax situation
and may  differ  from  those  shown.  Also  note  that if you own the  fund in a
tax-deferred account, such as an individual retirement account or a 401(k) plan,
this information does not apply to you. Such accounts are not subject to current
taxes.

Finally,  keep  in mind  that a  fund's  performance--whether  before  or  after
taxes--does not indicate how it will perform in the future.

- --------------------------------------------------------------------------------
AVERAGE ANNUAL TOTAL RETURNS                     PERIODS ENDED NOVEMBER 30, 2003

                                             ONE YEAR    FIVE YEARS    TEN YEARS
                                           -------------------------------------
CONVERTIBLE SECURITIES FUND
  Returns Before Taxes                         28.07%         9.79%        8.71%
  Returns After Taxes on Distributions         26.38          7.29         5.50
  Returns After Taxes on Distributions
    and Sale of Fund Shares                    18.02          6.83         5.42
- --------------------------------------------------------------------------------

                                       14



ABOUT YOUR FUND'S EXPENSES

All mutual funds have  operating  expenses.  These  expenses  include  costs for
portfolio  management,  administrative  services,  and shareholder reports (like
this one), among others.  Operating  expenses,  which are deducted from a fund's
gross  income,  directly  reduce  the  investment  return of the fund.  A fund's
expenses are expressed as a percentage  of its net assets.  This figure is known
as the expense ratio.

A HYPOTHETICAL EXAMPLE

We believe it is  important  for you to  understand  the impact of costs on your
investment.  The following  example  illustrates  the costs that you would incur
over a 12-month  period if you  invested  $10,000 in the fund,  using the fund's
actual  return and  operating  expenses  for the fiscal year ended  November 30,
2003.  The cost in dollars is  calculated  by applying the expense  ratio to the
average balance in the hypothetical  account. For comparative  purposes, we also
list the average expense ratio for the fund's peer group,  which is derived from
data provided by Lipper Inc.

- --------------------------------------------------------------------------------
                                 COST OF $10,000            FUND     PEER GROUP*
                              INVESTMENT IN FUND    EXPENSE RATIO  EXPENSE RATIO
- --------------------------------------------------------------------------------
Convertible Securities Fund                  $96            0.84%          1.49%
- --------------------------------------------------------------------------------
*Average Convertible Securities Fund.
The  calculation  assumes no shares were sold.  Your actual  costs may have been
higher or lower,  depending  on the amount of your  investment  and your holding
period. Peer-group ratio captures data through year-end 2002.


You can find  more  information  about the  fund's  expenses,  including  annual
expense ratios for the past five years, in the Financial  Statements  section of
this  report.  For  additional  information  on  operating  expenses  and  other
shareholder  costs,  please  refer  to the  fund's  prospectus.  The  prospectus
presents  hypothetical  shareholder costs over various time periods based upon a
$10,000 investment and a return of 5% a year. This standardized  example,  which
appears in all mutual fund  prospectuses,  may be useful to you in comparing the
costs of investing in different funds.

                                       15




FINANCIAL STATEMENTS                                            AS OF 11/30/2003

STATEMENT OF NET ASSETS

This Statement  provides a detailed list of the fund's holdings,  including each
security's market value on the last day of the reporting period.  Securities are
grouped  and  subtotaled  by asset  type  (common  stocks,  bonds,  etc.) and by
industry sector. Other assets are added to, and liabilities are subtracted from,
the value of Total Investments to calculate the fund's Net Assets.  Finally, Net
Assets are divided by the outstanding  shares of the fund to arrive at its share
price, or Net Asset Value (NAV) Per Share.

At the end of the Statement of Net Assets,  you will find a table displaying the
composition of the fund's net assets.  Because all income and any realized gains
must be distributed to  shareholders  each year, the bulk of net assets consists
of Paid-in  Capital  (money  invested by  shareholders).  The amounts  shown for
Undistributed  Net Investment  Income and Accumulated Net Realized Gains usually
approximate  the sums the fund had available to distribute  to  shareholders  as
income  dividends  or capital  gains as of the  statement  date,  but may differ
because  certain  investments or  transactions  may be treated  differently  for
financial  statement and tax purposes.  Any Accumulated Net Realized Losses, and
any cumulative  excess of  distributions  over net income or net realized gains,
will appear as negative balances.  Unrealized Appreciation (Depreciation) is the
difference  between the market value of the fund's  investments  and their cost,
and reflects the gains  (losses) that would be realized if the fund were to sell
all of its investments at their statement-date values.

- ---------------------------------------------------------------------------
                                                   FACE              MARKET
                                                 AMOUNT              VALUE*
CONVERTIBLE SECURITIES FUND                       (000)               (000)
- ---------------------------------------------------------------------------
CONVERTIBLE BONDS (87.6%)
- ---------------------------------------------------------------------------
AUTO & TRANSPORTATION (7.3%)
Continental Airlines, Inc.
   4.50%, 2/1/2007                        $      19,400       $      17,169
(1)5.00%, 6/15/2023                               3,815               4,874
General Motors Corp.
   4.50%, 3/6/2032                                  192               4,825
Lear Corp.
   0.00%, 2/20/2022                              17,855               9,151
Mesa Air Group Inc.
(1)2.482%, 6/16/2023                              6,250               3,867
Navistar Financial Corp.
   4.75%, 4/1/2009                               19,235              19,908
                                                              -------------
                                                              $      59,794
                                                              -------------

CONSUMER DISCRETIONARY (20.4%)
CIBER Inc.
(1)2.875%, 12/15/2023                             1,970               2,009
The Walt Disney Co.
   2.125%, 4/15/2023                             11,750              12,293
Eastman Kodak Co.
(1)3.375%, 10/15/2033                             7,875               8,505
Echostar Communications Corp.
   5.75%, 5/15/2008                              20,715              21,802
iDine Rewards
(1)3.25%, 10/15/2023                              1,025                 922
IKON Office Solutions, Inc.
(1)5.00%, 5/1/2007                                1,600               1,530
Lamar Advertising Co.
   2.875%, 12/31/2010                             5,350               5,310
Liberty Media Corp.
(1)0.75%, 3/30/2023                              11,180              12,452
Lions Gate Entertainment
(1)4.875%, 12/15/2010                             5,135               5,289
Lowe's Cos., Inc.
   0.861%, 10/19/2021                             6,745               7,436
Memberworks, Inc.
(1)5.50%, 10/1/2010                               5,835               5,871
NCO Group, Inc.
   4.75%, 4/15/2006                              10,040              10,278
J.C. Penney & Co., Inc.
   5.00%, 10/15/2008                             16,345              17,509
The Pep Boys (Manny, Moe & Jack)
(1)4.25%, 6/1/2007                                  855                 943
   4.25%, 6/1/2007                               12,530              13,814
Royal Caribbean Cruises Ltd.
   0.00%, 5/18/2021                              13,733               7,210

                                       16



- ---------------------------------------------------------------------------
                                                   FACE              MARKET
                                                 AMOUNT              VALUE*
CONVERTIBLE SECURITIES FUND                       (000)               (000)
- ---------------------------------------------------------------------------
Service Corp. International
   6.75%, 6/22/2008                       $      17,340       $      18,012
Triarc Cos., Inc
(1)5.00%, 5/15/2023                              10,710              11,540
   5.00%, 5/15/2023                               1,520               1,638
Waste Connections, Inc.
   5.50%, 4/15/2006                               2,445               2,641
                                                              -------------
                                                              $     167,004
                                                              -------------
CONSUMER STAPLES (0.1%)
Performance Food Group Co.
   5.50%, 10/16/2008                                915               1,169

FINANCIAL SERVICES (6.1%)
Fairfax Financial Holdings, Ltd.
(1)5.00%, 7/15/2023                               5,865               5,711
   5.00%, 7/15/2023                                 425                 414
HCC Insurance Holdings, Inc.
   1.30%, 4/1/2023                                5,285               5,510
Meristar Hospitality Corp. REIT
   9.50%, 4/1/2010                                6,420               7,551
Ohio Casualty Corp.
   5.00%, 3/19/2022                              13,785              14,250
Providian Financial Corp.
   3.25%, 8/15/2005                               7,290               6,935
United Rentals NA Inc.
(1)1.875%, 10/15/2023                             9,195               9,091
                                                              -------------
                                                              $      49,462
                                                              -------------
HEALTH CARE (16.3%)
Axcan Pharma Inc.
(1)4.25%, 4/15/2008                               7,140               8,854
Celgene Corp.
(1)1.75%, 6/1/2008                               10,675              12,716
Cephalon, Inc.
   2.50%, 12/15/2006                              2,000               1,875
Fisher Scientific International Inc.
(1)2.50%, 10/1/2023                              21,105              23,374
Invitrogen Inc.
   2.25%, 12/15/2006                              6,915               7,192
Ivax Corp.
   5.50%, 5/15/2007                              10,830              11,047
NPS Pharmaceuticals Inc.
(1)3.00%, 6/15/2008                               7,640               8,385
Pharmaceutical Resources, Inc.
(1)2.875%, 9/30/2010                              9,725              11,086
QLT Inc.
(1)3.00%, 9/15/2023                               4,910               5,953
Sunrise Assisted Living, Inc.
(1)5.25%, 2/1/2009                                1,570               1,811
   5.25%, 2/1/2009                               13,430              15,495
Valeant Pharmaceuticals International
(1)3.00%, 8/16/2010                              13,640              14,578
(1)4.00%, 11/15/2013                              9,720              10,534
                                                              -------------
                                                              $     132,900
                                                              -------------
OTHER ENERGY (2.0%)
Halliburton Co.
(1)3.125%, 7/15/2023                              2,530               2,524
Pride International, Inc.
(1)2.50%, 3/1/2007                                4,020               4,533
Reliant Resources, Inc.
(1)5.00%, 8/15/2010                               8,730               9,025
                                                              -------------
                                                              $      16,082
                                                              -------------

MATERIALS & Processing (2.0%)
Freeport-McMoRan Copper & Gold, Inc.
   7.00%, 2/11/2011                               1,495               2,499
Millennium Chemical
(1)4.00%, 11/15/2023                                785                 875
Placer Dome Inc. Cvt.
(1)2.75%, 10/15/2023                              2,765               3,252
Sealed Air Corp.
(1)3.00%, 6/30/2033                               9,415               9,733
                                                              -------------
                                                              $      16,359
                                                              -------------

PRODUCER DURABLES (6.1%)
American Tower Corp.
(1)3.25%, 8/1/2010                                7,290               8,818
Axcelis Technologies
   4.25%, 1/15/2007                               9,000               8,854
Photronics, Inc.
   4.75%, 12/15/2006                              1,470               1,448
Powerwave Technologies, Inc.
(1)1.25%, 7/15/2008                              10,570              10,475
Veeco Instruments, Inc.
   4.125%, 12/21/2008                            19,790              20,532
                                                              -------------
                                                              $      50,127
                                                              -------------

TECHNOLOGY (16.1%)
Acxiom Corp.
   3.75%, 2/15/2009                               1,240               1,350
Avaya Inc.
   0.00%, 10/31/2021                             14,550               8,930
Documentum, Inc.
(1)4.50%, 4/1/2007                                2,760               3,398
EDO Corp.
(1)5.25%, 4/15/2007                                 745                 775
   5.25%, 4/15/2007                               1,000               1,040
FEI Co.
(1)0.00%, 6/15/2023                               3,000               3,195
Flir Systems, Inc.
(1)3.00%, 6/1/2023                                8,515               8,994

                                       17


- ---------------------------------------------------------------------------
                                                   FACE              MARKET
                                                 AMOUNT              VALUE*
CONVERTIBLE SECURITIES FUND                       (000)               (000)
- ---------------------------------------------------------------------------
Flextronics International Ltd.
(1)1.00%, 8/1/2010                        $       6,170       $       7,666
HNC Software, Inc.
(1)5.25%, 9/1/2008                                2,005               2,303
   5.25%, 9/1/2008                                8,750              10,052
International Rectifier Corp.
   4.25%, 7/15/2007                              11,230              11,216
LSI Logic
(1)4.00%, 5/15/2010                               9,290              10,533
Lucent Technologies, Inc.
   2.75%, 6/15/2023                               5,080               6,210
Nextel Communications, Inc.
   6.00%, 6/1/2011                               14,695              17,156
Nortel Networks Corp.
   4.25%, 9/1/2008                               21,875              20,645
Radisys Corp
(1)1.375%, 11/15/2023                             1,020               1,046
Vishay Intertechnology, Inc.
(1)3.625%, 8/1/2023                              12,940              17,153
                                                              -------------
                                                              $     131,662
                                                              -------------
UTILITIES (7.2%)
Calpine Corp.
   4.00%, 12/26/2006                              9,555               9,304
(1)4.75%, 11/15/2023                              9,910               9,192
Level 3 Communications, Inc.
   2.875%, 7/15/2010                              1,500               1,515
Mediacom Communications Corp.
   5.25%, 7/1/2006                                3,740               3,492
Primus Telecommunications Group, Inc.
   5.75%, 2/15/2007                              11,305              11,022
(1)3.75%, 9/15/2010                               8,410              12,005
Quanta Services Inc.
(1)4.50%, 10/1/2023                              11,455              12,171
                                                              -------------
                                                              $      58,701
                                                              -------------

OTHER (4.0%)
Gencorp, Inc.
   5.75%, 4/15/2007                               1,320               1,267
Tyco International Ltd.
   2.75%, 1/15/2018                               4,710               5,481
(1)2.75%, 1/15/2018                              22,160              25,789
                                                              -------------
                                                              $      32,537
                                                              -------------
- ---------------------------------------------------------------------------
TOTAL CONVERTIBLE BONDS (Cost $661,241)                       $     715,797
- ---------------------------------------------------------------------------
                                                                     MARKET
                                                                     VALUE*
                                                 SHARES               (000)
- ---------------------------------------------------------------------------
CONVERTIBLE PREFERRED STOCKS (9.1%)
- ---------------------------------------------------------------------------
Consumer Discretionary (0.8%)
Allied Waste Industries, Inc.
   6.25% Cvt. Pfd.                               73,610       $       5,200
Emmis Communications Corp.
   6.25% Cvt. Pfd.                               25,000               1,154
                                                              -------------
                                                              $       6,354
                                                              -------------
FINANCIAL SERVICES (4.0%)
Commerce Capital
(1)5.95% Cvt. Pfd.                               76,400               4,546
   5.95% Cvt. Pfd.                               74,400               4,427
New York Community Bancorp
   6.00% Cvt. Pfd.                               74,800               5,741
Reinsurance Group of America, Inc.
   5.75% Cvt. Pfd.                               65,000               3,767
United Rentals
   6.50% Cvt. Pfd.                              215,800               9,091
Washington Mutual, Inc.
(1)5.375% Cvt. Pfd.                              75,800               4,543
                                                              -------------
                                                              $      32,115
                                                              -------------
OTHER ENERGY (2.0%)
Chesapeake Energy Corp.
   5.00% Cvt. Pfd.                               66,100               6,808
Hanover Compressor Capital Trust
   7.25% Cvt. Pfd.                              175,700               7,862
Williams Cos., Inc.
(1)5.50% Cvt. Pfd.                               30,000               1,871
                                                              -------------
                                                              $      16,541
                                                              -------------

PRODUCER DURABLES (0.8%)
Xerox Corp.
   6.25% Cvt. Pfd.                               57,800       $       6,815
                                                              -------------
TECHNOLOGY (1.2%)
Lucent Technologies Capital Trust I
   7.75% Cvt. Pfd.                                9,570              10,183

UTILITIES (0.3%)
Dominion Resources, Inc.
   9.50% Cvt. Pfd.                               46,900               2,577

- ---------------------------------------------------------------------------
TOTAL CONVERTIBLE PREFERRED STOCKS (Cost $64,211)             $      74,585
- ---------------------------------------------------------------------------

                                       18


- ---------------------------------------------------------------------------
                                                   FACE              MARKET
                                                 AMOUNT              VALUE*
                                                  (000)               (000)
- ---------------------------------------------------------------------------
TEMPORARY CASH INVESTMENTS (17.1%)
- ---------------------------------------------------------------------------
Repurchase Agreements
Collateralized by U.S. Government
  Obligations in a Pooled Cash Account
   1.05%, 12/1/2003                       $      33,065       $      33,065
   1.05%, 12/1/2003--Note G                     106,795             106,795
- ---------------------------------------------------------------------------
TOTAL TEMPORARY CASH INVESTMENTS (Cost $139,860)              $     139,860
- ---------------------------------------------------------------------------
TOTAL INVESTMENTS (113.8%) (Cost $865,312)                    $     930,242
- ---------------------------------------------------------------------------
OTHER ASSETS AND LIABILITIES (-13.8%)
- ---------------------------------------------------------------------------
Other Assets--Note C 16,173
Payables for Investment Securities Purchased                       (20,572)
Security Lending Collateral Payable to Brokers--Note G            (106,795)
Other Liabilities                                                   (1,858)
                                                              -------------
                                                                  (113,052)
                                                              -------------
- ---------------------------------------------------------------------------
NET ASSETS (100%)
- ---------------------------------------------------------------------------
Applicable to 62,642,817 outstanding $.001
  par value shares of beneficial interest
    (unlimited authorization)                                 $     817,190
- ---------------------------------------------------------------------------
NET ASSET VALUE PER SHARE                                     $       13.05
===========================================================================
*See Note A in Notes to Financial Statements.
(1) Security exempt from  registration  under Rule 144A of the Securities Act of
1933.  These  securities may be sold in transactions  exempt from  registration,
normally to qualified  institutional buyers. At November 30, 2003, the aggregate
value of these securities was $344,310,000, representing 42.1% of net assets.

- ---------------------------------------------------------------------------
                                                        AMOUNT          PER
                                                         (000)        SHARE
- ---------------------------------------------------------------------------
AT NOVEMBER 30, 2003, NET ASSETS CONSISTED OF:
- ---------------------------------------------------------------------------
Paid-in Capital                                     $ 762,743      $ 12.18
Undistributed Net
   Investment Income                                    5,543          .09
Accumulated Net
   Realized Losses                                    (16,026)        (.26)
Unrealized Appreciation                                64,930         1.04
- ---------------------------------------------------------------------------
NET ASSETS                                          $ 817,190      $ 13.05
===========================================================================
See Note E in Notes to Financial  Statements for the tax-basis components
of net assets.

                                       19




STATEMENT OF OPERATIONS

This Statement shows the types of income earned by the fund during the reporting
period,  and details the operating  expenses charged to the fund. These expenses
directly reduce the amount of investment income available to pay to shareholders
as income  dividends.  This Statement also shows any Net Gain (Loss) realized on
the  sale of  investments,  and  the  increase  or  decrease  in the  Unrealized
Appreciation (Depreciation) of investments during the period.

- --------------------------------------------------------------------------------
                                                     CONVERTIBLE SECURITIES FUND
                                                    YEAR ENDED NOVEMBER 30, 2003
                                                                           (000)
- --------------------------------------------------------------------------------
INVESTMENT INCOME
INCOME
  Dividends                                                         $     4,519
  Interest                                                               19,476
  Security Lending 180
- --------------------------------------------------------------------------------
    Total Income                                                         24,175
- --------------------------------------------------------------------------------
EXPENSES
  Investment Advisory Fees--Note B
    Basic Fee                                                             1,996
    Performance Adjustment                                                  675
  The Vanguard Group--Note C
    Management and Administrative                                         1,548
    Marketing and Distribution                                               53
  Custodian Fees                                                             13
  Auditing Fees                                                              16
  Shareholders' Reports and Proxies                                          38
  Trustees' Fees and Expenses                                                 1
- --------------------------------------------------------------------------------
    Total Expenses                                                        4,340
    Expenses Paid Indirectly--Note D                                         (6)
- --------------------------------------------------------------------------------
Net Expenses                                                              4,334
- --------------------------------------------------------------------------------
NET INVESTMENT INCOME                                                    19,841
- --------------------------------------------------------------------------------
REALIZED NET GAIN (LOSS) ON INVESTMENT SECURITIES SOLD                   61,788
- --------------------------------------------------------------------------------
CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION)
    OF INVESTMENT SECURITIES                                             59,263
- --------------------------------------------------------------------------------
NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS     $   140,892
================================================================================

                                       20



STATEMENT OF CHANGES IN NET ASSETS

This Statement shows how the fund's total net assets changed during the two most
recent reporting periods. The Operations section summarizes information detailed
in  the  Statement  of  Operations.   The  amounts  shown  as  Distributions  to
shareholders  from the fund's net  income  and  capital  gains may not match the
amounts shown in the Operations section, because distributions are determined on
a tax  basis  and may be made in a period  different  from the one in which  the
income was earned or the gains were  realized on the financial  statements.  The
Capital Share Transactions section shows the amount shareholders invested in the
fund,  either by purchasing shares or by reinvesting  distributions,  as well as
the amounts redeemed.  The  corresponding  numbers of Shares Issued and Redeemed
are shown at the end of the Statement.

- --------------------------------------------------------------------------------
                                                    CONVERTIBLE SECURITIES FUND
                                          --------------------------------------
                                                    YEAR ENDED NOVEMBER 30,
                                          --------------------------------------
                                                   2003                    2002
                                                  (000)                   (000)
- --------------------------------------------------------------------------------
INCREASE (DECREASE) IN NET ASSETS
OPERATIONS
  Net Investment Income                   $      19,841             $    12,083
  Realized Net Gain (Loss)                       61,788                 (31,620)
  Change in Unrealized Appreciation
    (Depreciation)                               59,263                  (7,239)

- --------------------------------------------------------------------------------
  Net Increase (Decrease) in Net Assets
    Resulting from Operations                   140,892                 (26,776)
- --------------------------------------------------------------------------------
DISTRIBUTIONS
  Net Investment Income                         (16,869)                (12,489)
  Realized Capital Gain                              --                      --
- --------------------------------------------------------------------------------
    Total Distributions                         (16,869)                (12,489)
- --------------------------------------------------------------------------------
CAPITAL SHARE TRANSACTIONS1
  Issued                                        515,418                 104,042
  Issued in Lieu of Cash Distributions           14,331                  10,764
  Redeemed                                     (127,279)                (85,029)
- --------------------------------------------------------------------------------
  Net Increase (Decrease) from Capital
    Share Transactions                          402,470                  29,777
- --------------------------------------------------------------------------------
    Total Increase (Decrease)                   526,493                  (9,488)
- --------------------------------------------------------------------------------
NET ASSETS
  Beginning of Period                           290,697                 300,185
- --------------------------------------------------------------------------------
  End of Period                           $     817,190             $   290,697
================================================================================

1 Shares Issued (Redeemed)
  Issued                                         44,868                   9,593
  Issued in Lieu of Cash Distributions            1,265                     970
   Redeemed                                     (10,983)                 (7,828)
- --------------------------------------------------------------------------------
Net Increase (Decrease) in Shares
  Outstanding                             $      35,150             $     2,735
================================================================================
                                       21




FINANCIAL HIGHLIGHTS

This table  summarizes  the  fund's  investment  results  and  distributions  to
shareholders  on a per-share  basis. It also presents the Total Return and shows
net investment  income and expenses as percentages of average net assets.  These
data will help you assess:  the  variability  of the fund's net income and total
returns from year to year; the relative  contributions of net income and capital
gains to the fund's total return; how much it costs to operate the fund; and the
extent to which the fund tends to distribute capital gains. The table also shows
the Portfolio  Turnover Rate, a measure of trading activity.  A turnover rate of
100% means that the average security is held in the fund for one year.






CONVERTIBLE SECURITIES FUND
- ---------------------------------------------------------------------------------------------------
                                                                 YEAR ENDED NOVEMBER 30,
                                                   ------------------------------------------------
                                                                             
FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD     2003       2002       2001       2000       1999
- ---------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD             $10.57     $12.12     $12.68     $13.18    $11.10
- ---------------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS
  Net Investment Income                             .41        .47        .53        .56       .52
  Net Realized and Unrealized Gain (Loss)
    on Investments                                 2.48      (1.53)      (.04)       .19      2.13
- ---------------------------------------------------------------------------------------------------
  Total from Investment Operations                 2.89      (1.06)       .49        .75      2.65
- ---------------------------------------------------------------------------------------------------
DISTRIBUTIONS
  Dividends from Net Investment Income             (.41)      (.49)      (.54)      (.55)     (.57)
  Distributions from Realized Capital Gains          --         --       (.51)      (.70)       --
- ---------------------------------------------------------------------------------------------------
    Total Distributions                            (.41)      (.49)     (1.05)     (1.25)     (.57)
- ---------------------------------------------------------------------------------------------------

NET ASSET VALUE, END OF PERIOD                   $13.05     $10.57     $12.12     $12.68    $13.18
===================================================================================================

TOTAL RETURN                                     28.07%     -8.88%      3.98%      5.27%    24.85%
===================================================================================================

RATIOS/SUPPLEMENTAL DATA
  Net Assets, End of Period (Millions)             $817       $291       $300       $323      $180
  Ratio of Total Expenses to
    Average Net Assets*                           0.84%      0.95%      0.71%      0.56%     0.55%
  Ratio of Net Investment Income to
    Average Net Assets                            3.82%      4.27%      4.21%      4.19%     4.30%
  Portfolio Turnover Rate                          127%       118%       156%       182%      162%
===================================================================================================
* Includes  performance-based  investment advisory fee increases  (decreases) of
0.13%, 0.21%, 0.01%, (0.14%), and (0.22%).


                                       22



NOTES TO FINANCIAL STATEMENTS

Vanguard Convertible  Securities Fund is registered under the Investment Company
Act of 1940 as an open-end  investment company, or mutual fund. A. The following
significant   accounting  policies  conform  to  generally  accepted  accounting
principles for U.S. mutual funds. The fund consistently follows such policies in
preparing its financial statements.

1. SECURITY  VALUATION:  Securities are valued as of the close of trading on the
New York Stock  Exchange  (generally  4:00 p.m.  Eastern  time) on the valuation
date. Equity securities are valued at the latest quoted sales prices or official
closing prices taken from the primary market in which each security trades; such
securities not traded on the valuation date are valued at the mean of the latest
quoted bid and asked prices. Bonds, and temporary cash investments acquired over
60 days to maturity,  are valued using the latest bid prices or using valuations
based on a matrix  system  (which  considers  such  factors as security  prices,
yields,  maturities,  and  ratings),  both as furnished by  independent  pricing
services.  Other temporary cash  investments are valued at amortized cost, which
approximates  market  value.  Securities  for which  market  quotations  are not
readily  available,  or whose  values  have been  materially  affected by events
occurring  before the fund's pricing time but after the close of the securities'
primary  markets,  are  valued by  methods  deemed by the board of  trustees  to
represent fair value.

2.  REPURCHASE  AGREEMENTS:  The fund,  along with other members of The Vanguard
Group,  transfers uninvested cash balances into a pooled cash account,  which is
invested  in  repurchase  agreements  secured  by  U.S.  government  securities.
Securities  pledged  as  collateral  for  repurchase  agreements  are  held by a
custodian bank until the  agreements  mature.  Each agreement  requires that the
market value of the  collateral be sufficient to cover  payments of interest and
principal;  however, in the event of default or bankruptcy by the other party to
the agreement, retention of the collateral may be subject to legal proceedings.

3. FEDERAL INCOME TAXES:  The fund intends to continue to qualify as a regulated
investment  company and distribute all of its taxable  income.  Accordingly,  no
provision for federal income taxes is required in the financial statements.

4. DISTRIBUTIONS:  Distributions to shareholders are recorded on the ex-dividend
date.

5.  OTHER:  Dividend  income  is  recorded  on the  ex-dividend  date.  Security
transactions  are accounted for on the date the  securities  are bought or sold.
Costs  used to  determine  realized  gains  (losses)  on the sale of  investment
securities are those of the specific  securities sold. Premiums and discounts on
debt securities purchased are amortized and accreted,  respectively, to interest
income over the lives of the respective securities.

B. Oaktree Capital Management, LLC, provides investment advisory services to the
fund for a fee  calculated at an annual  percentage  rate of average net assets.
The  basic  fee  is  subject  to  quarterly  adjustments  based  on  the  fund's
performance  for the preceding  three years  relative to the Credit Suisse First
Boston  Convertible  Securities Index. For the year ended November 30, 2003, the
investment  advisory fee represented an effective  annual basic rate of 0.38% of
the fund's  average net assets  before an increase of $675,000  (0.13%) based on
performance.

C. The Vanguard Group  furnishes at cost corporate  management,  administrative,
marketing,  and distribution  services. The costs of such services are allocated
to the fund  under  methods  approved  by the  board of  trustees.  The fund has
committed to provide up to 0.40% of its net assets in capital  contributions  to
Vanguard.  At November 30, 2003, the fund had contributed capital of $123,000 to
Vanguard (included in Other Assets), representing 0.02% of the fund's net assets
and 0.12% of  Vanguard's  capitalization.  The fund's  trustees and officers are
also directors and officers of Vanguard.

                                       23



NOTES TO FINANCIAL STATEMENTS (CONTINUED)

D. The  fund's  custodian  bank has  agreed  to  reduce  its fees  when the fund
maintains cash on deposit in the  non-interest-bearing  custody account. For the
year ended November 30, 2003, custodian fee offset arrangements reduced expenses
by $6,000.

E.  Distributions  are  determined  on a tax  basis  and  may  differ  from  net
investment income and realized capital gains for financial  reporting  purposes.
Differences   may  be  permanent  or  temporary.   Permanent   differences   are
reclassified among capital accounts in the financial statements to reflect their
tax  character.  Temporary  differences  arise  when  certain  items of  income,
expense,  gain,  or loss are  recognized  in  different  periods  for  financial
statement and tax purposes;  these  differences will reverse at some time in the
future.  Differences  in  classification  may also result from the  treatment of
short-term gains as ordinary income for tax purposes.

Certain of the fund's  convertible  preferred  stock  investments are treated as
debt  securities for tax purposes.  During the year ended November 30, 2003, the
fund  realized  gains of $435,000 from the sale of these  securities,  which are
included in distributable net investment  income for tax purposes;  accordingly,
such  gains  have been  reclassified  from  accumulated  net  realized  gains to
undistributed net investment income.

For tax  purposes,  at November 30, 2003,  the fund had  $6,561,000  of ordinary
income  available for  distribution.  The fund had available  realized losses of
$16,034,000 to offset future net capital gains through November 30, 2010.

At November 30, 2003, net unrealized  appreciation of investment  securities for
tax purposes was  $64,930,000,  consisting of unrealized gains of $68,364,000 on
securities  that had risen in value  since  their  purchase  and  $3,434,000  in
unrealized  losses on securities  that had fallen in value since their purchase.

F. During the year ended November 30, 2003, the fund purchased $1,028,216,000 of
investment securities and sold $626,776,000 of investment securities, other than
temporary  cash  investments.

G. The market  value of  securities  on loan to  broker/dealers  at November 30,
2003, was $104,973,000, for which the fund held cash collateral of $106,795,000.
The fund invests cash collateral received in repurchase agreements,  and records
a liability for the return of the  collateral,  during the period the securities
are on loan.

                                       24



REPORT OF INDEPENDENT AUDITORS

To the Shareholders and Trustees of Vanguard Convertible Securities Fund:

In our  opinion,  the  accompanying  statement  of net  assets  and the  related
statements  of  operations  and of  changes  in net  assets  and  the  financial
highlights present fairly, in all material  respects,  the financial position of
Vanguard  Convertible  Securities  Fund (the "Fund") at November  30, 2003,  the
results of its operations for the year then ended, the changes in its net assets
for each of the two years in the period then ended and the financial  highlights
for  each of the  five  years in the  period  then  ended,  in  conformity  with
accounting principles generally accepted in the United States of America.  These
financial  statements  and  financial  highlights   (hereafter  referred  to  as
"financial  statements") are the  responsibility of the Fund's  management;  our
responsibility  is to express an opinion on these financial  statements based on
our audits. We conducted our audits of these financial  statements in accordance
with  auditing  standards  generally  accepted in the United  States of America,
which require that we plan and perform the audit to obtain reasonable  assurance
about whether the financial  statements  are free of material  misstatement.  An
audit includes examining,  on a test basis,  evidence supporting the amounts and
disclosures in the financial  statements,  assessing the  accounting  principles
used and  significant  estimates made by management,  and evaluating the overall
financial  statement  presentation.  We believe that our audits,  which included
confirmation  of  securities  at November  30, 2003 by  correspondence  with the
custodian, provide a reasonable basis for our opinion.

PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania

January 6, 2004

- --------------------------------------------------------------------------------
SPECIAL 2003 TAX INFORMATION
  (UNAUDITED) FOR VANGUARD CONVERTIBLE SECURITIES FUND

This  information  for the fiscal  year ended  November  30,  2003,  is included
pursuant to provisions of the Internal Revenue Code.

For corporate  shareholders,  6.6% of investment  income  (dividend  income plus
short-term gains, if any) qualifies for the dividends-received deduction.

The fund intends to distribute the maximum amount of qualified  dividend  income
allowable.  The amount of qualified dividend income distributed by the fund will
be provided to individual shareholders on their 2003 Form 1099-DIV.
- --------------------------------------------------------------------------------

                                       25


INVESTING IS FAST, EASY, AND SECURE ON VANGUARD.COM

If you're like many  Vanguard  investors,  you  believe in  planning  and taking
control of your own  investments.  VANGUARD.COM  was built for you--and it keeps
getting better. research and plan your investments with confidence

Use our PLANNING & ADVICE and RESEARCH FUNDS & STOCKS sections to:

*    Determine what asset  allocation  might best suit your needs--by taking our
     Investor Questionnaire.
*    Find out how  much to save  for  retirement  and  your  children's  college
     education-- by using our planning tools.
*    Learn how to achieve your  goals--by  reading our  PlainTalk(R)  investment
     guides.
*    Find your next fund--by using the Compare Funds,  Compare Costs, and Narrow
     Your Fund Choices tools.
*    Look up fund price, performance history, and distribution information--in a
     snap. invest and manage accounts with ease

Log on to VANGUARD.COM to:

*    See what you own (at Vanguard and elsewhere) and how your  investments  are
     doing.
*    Elect  to  receive  online  statements,   fund  reports  (like  this  one),
     prospectuses, and tax forms.
*    Analyze your portfolio's holdings and performance.
*    Open  new  accounts,  buy and  sell  shares,  and  exchange  money  between
     funds--securely and easily.
*    Sign up to receive  electronic  newsletters from Vanguard  informing you of
     news on our funds,  products, and services, as well as on investing and the
     financial markets.

Find out what Vanguard.com can do for you. Log on today!

                                       26



CAPITALIZE ON YOUR IRA

Are you taking full advantage of your individual  retirement account? You really
should be. The contribution  limits on IRAs were recently  raised,  making these
tax-deferred accounts more powerful options for retirement savers.

Here's how you can exploit  your  IRA--and  improve  your  chances of having the
retirement of your dreams.

CONTRIBUTE THE MAXIMUM AMOUNT EACH YEAR

It may be an  obvious  point,  but if you  invest as much in your IRA as the law
allows--currently  $3,000 per tax year if you are under age 50 and $3,500 if you
are age 50 or over--you will increase the odds of meeting your retirement goals.
"Max out" every year you can.

MAKE IT AUTOMATIC

Put your IRA on autopilot by taking advantage of Vanguard's Automatic Investment
Plan.  Your IRA  contributions  will be  deducted  from your bank  account  on a
schedule of your choosing, making retirement investing a healthy habit.

CONSIDER COST

The owners of low-cost  investments keep a larger portion of their gross returns
than the owners of high-cost investments.  Over the long term, avoiding costlier
mutual funds and brokerage commissions could significantly boost your retirement
savings.  Our low costs are one reason a Vanguard IRA(R) is such a smart choice.

REQUEST A DIRECT ROLLOVER WHEN YOU CHANGE JOBS

Don't spend your retirement assets before you've retired.  When you change jobs,
roll your 401(k) or other  employer-sponsored  retirement  plan assets  directly
into your IRA.

If you have  questions  about your IRA,  want to  transfer  an IRA from  another
institution to Vanguard,  or need help with any other IRA transaction,  call our
Retirement Resource Center at 1-800-205-6189 or visit VANGUARD.COM. You can open
or fund your IRA on our  website  and have a  confirmation  in your hand  within
minutes.

                                       27


THE PEOPLE WHO GOVERN YOUR FUND

The  trustees of your mutual fund are there to see that the fund is operated and
managed in your best interests since, as a shareholder,  you are a part owner of
the fund.  Your  fund  trustees  also  serve on the  board of  directors  of The
Vanguard  Group,  Inc.,  which is owned by the  Vanguard(R)  funds and  provides
services to them on an at-cost basis.

A majority of Vanguard's board members are  independent,  meaning that they have
no affiliation  with Vanguard or the funds they oversee,  apart from the sizable
personal investments they have made as private individuals.

Our  independent  board members  bring  distinguished  backgrounds  in business,
academia,  and public service to their task of working with Vanguard officers to
establish the policies and oversee the activities of



- ------------------------------------------------------------------------------------------------------------
                                 
                  POSITION(S) HELD WITH
NAME              FUND (NUMBER OF
(YEAR OF BIRTH)   VANGUARD FUNDS
TRUSTEE/OFFICER   OVERSEEN BY
SINCE             TRUSTEE/OFFICER)     PRINCIPAL OCCUPATION(S) DURING THE PAST FIVE YEARS
- ------------------------------------------------------------------------------------------------------------
JOHN J. BRENNAN*  Chairman of the      Chairman of the Board, Chief Executive Officer, and Director/Trustee
(1954)            Board, Chief         of The Vanguard Group, Inc., and of each of the investment companies
May 1987          Executive Officer,   served by The Vanguard Group.
                  and Trustee
                  (112)
- ------------------------------------------------------------------------------------------------------------
INDEPENDENT TRUSTEES

CHARLES D. ELLIS  Trustee              The Partners of '63 (pro bono ventures in education); Senior Advisor
(1937)            (112)                to Greenwich Associates (international business strategy consulting);
January 2001                           Successor Trustee of Yale University; Overseer of the Stern School of
                                       Business at New York University; Trustee of the Whitehead Institute
                                       for Biomedical Research.
- ------------------------------------------------------------------------------------------------------------
RAJIV L. GUPTA    Trustee              Chairman and Chief Executive Officer (since October 1999), Vice
(1945)            (112)                Chairman (JanuarySeptember 1999), and Vice President (prior to
December 2001                          September 1999) of Rohm and Haas Co. (chemicals); Director of
                                       Technitrol, Inc. (electronic components), and Agere Systems
                                       (communications components); Board Member of the American Chemistry
                                       Council; and Trustee of Drexel University.
- ------------------------------------------------------------------------------------------------------------
JOANN HEFFERNAN   Trustee              Vice President, Chief Information Officer, and Member of the
HEISEN            (112)                Executive Committee of Johnson & Johnson (pharmaceuticals/consumer
(1950)                                 products); Director of the Medical Center at Princeton and Women's
July 1998                              Research and Education Institute.
- ------------------------------------------------------------------------------------------------------------
BURTON G. MALKIEL TRUSTEE              Chemical Bank Chairman's Professor of Economics,Princeton University;
(1932)            (110)                Director of Vanguard Investment Series plc (Irish invest-ment fund)
May 1977                               (since November 2001), Vanguard Group (Ireland)Limited (Irish
                                       investment management firm)(since November 2001),Prudential Insurance
                                       Co. of America, BKF Capital (investment management), The Jeffrey Co.
                                       (holding company), and NeuVis, Inc.(software company).
- ------------------------------------------------------------------------------------------------------------



the funds.  Among  board  members'  responsibilities  are  selecting  investment
advisors for the funds;  monitoring  fund  operations,  performance,  and costs;
reviewing  contracts;  nominating  and  selecting  new  trustees/directors;  and
electing Vanguard officers.

Each  trustee  serves a fund  until  its  termination;  or until  the  trustee's
retirement,  resignation,  or death;  or  otherwise  as  specified in the fund's
organizational  documents. Any trustee may be removed at a shareholders' meeting
by a vote  representing  two-thirds  of the net asset value of all shares of the
fund  together with shares of other  Vanguard  funds  organized  within the same
trust.  The table on these two pages  shows  information  for each  trustee  and
executive  officer of the fund. The mailing address of the trustees and officers
is P.O. Box 876, Valley Forge, PA 19482.

 

                      POSITION(S) HELD WITH
NAME                  FUND (NUMBER OF
(YEAR OF BIRTH)       VANGUARD FUNDS
TRUSTEE/OFFICER       OVERSEEN BY
SINCE                 TRUSTEE/OFFICER) PRINCIPAL OCCUPATION(S) DURING THE PAST FIVE YEARS
- ------------------------------------------------------------------------------------------------------------
                                 
Alfred M. Rankin, Jr. Trustee          Chairman, President, Chief Executive Officer, and Director of NACCO
(1941)                (112)            Industries, Inc. (forklift trucks/housewares/lignite); Director of
January 1993                           Goodrich Corporation (industrial products/aircraft systems and
                                       services); Director of Standard Products Company (supplier for
                                       the automotive industry) until 1998.
- ------------------------------------------------------------------------------------------------------------
J. Lawrence Wilson    Trustee          Retired Chairman and Chief Executive Officer of Rohm and Haas Co.
(1936)                (112)            (chemicals); Director of Cummins Inc. (diesel engines), The Mead
April 1985                             Corp. (paper products), and AmerisourceBergen Corp. (pharmaceuti-cal
                                       distribution); Trustee of Vanderbilt University.
- ------------------------------------------------------------------------------------------------------------
EXECUTIVE OFFICERS*

R. Gregory Barton     Secretary        Managing Director and General Counsel of The Vanguard Group, Inc.;
(1951)                (112)            Secretary of The Vanguard Group and of each of the investment
June 2001                              companies served by The Vanguard Group.
- ------------------------------------------------------------------------------------------------------------
Thomas J. Higgins     Treasurer        Principal of The Vanguard Group, Inc.; Treasurer of each of the
(1957)                (112)            investment companies served by The Vanguard Group.
July 1998
- ------------------------------------------------------------------------------------------------------------
*Officers  of the funds are  "interested  persons" as defined in the  Investment
Company Act of 1940.

More  information   about  the  trustees  is  in  the  Statement  of  Additional
Information, available from The Vanguard Group.

- ------------------------------------------------------------------------------------------------------------
VANGUARD SENIOR MANAGEMENT TEAM

MORTIMER J. BUCKLEY, Information Technology.                   MICHAEL S. MILLER, Planning and Development.
JAMES H. GATELY, Investment Programs and Services.             RALPH K. PACKARD, Finance.
KATHLEEN C. GUBANICH, Human Resources.                         GEORGE U. SAUTER, Chief Investment Officer.
F. WILLIAM MCNABB, III, Client Relationship Group.
- ------------------------------------------------------------------------------------------------------------
JOHN C. BOGLE, Founder; Chairman and Chief Executive Officer, 1974-1996.
- ------------------------------------------------------------------------------------------------------------



[SHIP]
[THE VANGUARD GROUP(R) LOGO]
Post Office Box 2600
Valley Forge, PA 19482-2600

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All other marks are the exclusive property of their respective owners.

ABOUT OUR COVER

The  photographs  that  appear on the cover of this  report are  copyrighted  by
Michael Kahn.

FOR MORE INFORMATION

This report is intended for the fund's  shareholders.  It may not be distributed
to  prospective  investors  unless it is preceded or  accompanied by the current
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To  receive  a free  copy  of the  prospectus  or the  Statement  of  Additional
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All  comparative  mutual fund data are from Lipper  Inc. or  Morningstar,  Inc.,
unless otherwise noted.

WORLD WIDE WEB
www.vanguard.com

FUND INFORMATION
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(C) 2004 THE VANGUARD GROUP, INC.
ALL RIGHTS RESERVED.
VANGUARD MARKETING
CORPORATION, DISTRIBUTOR.

Q820 012004




ITEM 2: Code of Ethics.  The Board of Trustees has adopted a code of ethics that
applies  to  the  principal  executive  officer,  principal  financial  officer,
principal  accounting  officer or controller of the  Registrant and The Vanguard
Group, Inc., and to persons performing similar functions.

ITEM 3:  Audit  Committee  Financial  Expert.  All of the  members  of the Audit
Committee have been determined by the Registrant's Board of Trustees to be Audit
Committee Financial Experts.  The members of the Audit Committee are: Charles D.
Ellis,  Rajiv L. Gupta,  JoAnn Heffernan  Heisen,  Burton G. Malkiel,  Alfred M.
Rankin, Jr., and J. Lawrence Wilson. All Audit Committee members are independent
under applicable rules.


ITEM 4: Not applicable.

ITEM 5: Not applicable.

ITEM 6: Reserved.

ITEM 7: Not applicable.

ITEM 8: Reserved.




ITEM 9: CONTROLS AND PROCEDURES.

     (a)  Disclosure  Controls  and  Procedures.  The  Principal  Executive  and
Financial  Officers  concluded  that the  Registrant's  Disclosure  Controls and
Procedures are effective  based on their  evaluation of the Disclosure  Controls
and Procedures as of a date within 90 days of the filing date of this report.

     (b) Internal  Control Over Financial  Reporting.  There were no significant
changes in Registrant's  internal  control over financial  reporting or in other
factors that could  significantly  affect this control subsequent to the date of
the  evaluation,  including any  corrective  actions with regard to  significant
deficiencies and material weaknesses.

ITEM 10: EXHIBITS.  The following exhibits are attached hereto:
         (a) code of ethics
         (b) certifications





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

      VANGUARD CONVERTIBLE SECURITIES FUND

BY:_____________(signature)________________
               (HEIDI STAM)
             JOHN J. BRENNAN*
         CHIEF EXECUTIVE OFFICER

Date: January 22, 2004

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


      VANGUARD CONVERTIBLE SECURITIES FUND

BY:_____________(signature)________________
               (HEIDI STAM)
             JOHN J. BRENNAN*
         CHIEF EXECUTIVE OFFICER

Date: January 22, 2004

      VANGUARD CONVERTIBLE SECURITIES FUND

BY:_____________(signature)________________
               (HEIDI STAM)
            THOMAS J. HIGGINS*
               TREASURER

Date: January 22, 2004

*By Power of  Attorney.  See File Number  2-57689,  filed on December  26, 2002.
Incorporated by Reference.