VANGUARD/WELLINGTON FUND INC
N-30D, 2000-07-18
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<PAGE>

VANGUARD WELLINGTON (TM) FUND

[PHOTO]

SEMIANNUAL REPORT
May 31, 2000

[THE VANGUARD GROUP LOGO]

<PAGE>

HAVE THE PRINCIPLES OF INVESTING CHANGED?

In a world  of  frenetic  change  in  business,  technology,  and the  financial
markets,  it is natural to wonder whether the basic principles of investing have
changed.

     We don't think so.

     The most  successful  investors  over the coming  decade  will be those who
began the new century with a fundamental  understanding  of risk and who had the
discipline to stick with long-term investment programs.

     Certainly,  investors  today  confront a challenging,  even  unprecedented,
environment.

Valuations  of market  indexes are at or near historic  highs.  The strength and
duration of the bull market in U.S. stocks have inflated  people's  expectations
and diminished  their  recognition of the market's  considerable  risks. And the
incredible  divergence in stock returns--many  technology-related  stocks gained
100% or more in 1999, yet prices fell for more than half of all stocks--has made
some investors question the idea of diversification.

     And then there is the  Internet.  Undeniably,  it is a powerful  medium for
communications and transacting business.  For investors,  the Internet is a vast
source  of  information  about  investments,  and  online  trading  has  made it
inexpensive and convenient to trade stocks and invest in mutual funds.

     However,  new tools do not guarantee good  workmanship.  Information is not
the same as wisdom.  Indeed,  much of the information,  opinion,  and rumor that
swirl  about  financial  markets  each day  amounts  to  "noise"  of no  lasting
significance.  And the fact  that  rapid-fire  trading  is easy does not make it
beneficial.   Frequent  trading  is  almost  always  counterpro-ductive  because
costs--even at low commission rates--and taxes detract from the returns that the
markets  provide.  Sadly,  many  investors jump into a "hot" mutual fund just in
time to see it  cool  off.  Meanwhile,  long-term  fund  investors  are  hurt by
speculative  trading  activity  because they bear part of the costs  involved in
accommodating purchases and redemptions.

     Vanguard  believes that  intelligent  investors  should  resist  short-term
thinking and focus instead on a few time-tested principles:

o    Invest for the long term. Pursuing your long-term  investment goals is more
     like a marathon than a sprint.

o    Diversify  your  investments  with  holdings  in  stocks,  bonds,  and cash
     investments.

     Remember that, at any moment, some part of a diversified portfolio will lag
other   parts,and  be  wary  of  taking  on  more  risk  by  "piling  onto"  the
best-performing  part of your holdings.  Today's leader could well be tomorrow's
laggard.

o    Step back from the daily frenzy of the markets; focus on your overall asset
     allocation.

o    Capture as much of the market's return as possible by minimizing  costs and
     taxes.

Costs and taxes  diminish  long-term  returns  while doing nothing to reduce the
risks you incur as an investor.

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

REPORT FROM THE CHAIRMAN       1            PERFORMANCE SUMMARY         9
THE MARKETS IN PERSPECTIVE     5            FUND PROFILE               10
REPORT FROM THE ADVISER        7            FINANCIAL STATEMENTS       14
--------------------------------------------------------------------------------

All  comparative  mutual fund data are from Lipper  Inc. or  Morningstar,  Inc.,
unless  otherwise  noted.
"Standard  & Poor's  (R),"  "S&P(R),"  "S&P  500(R)," "Standard & Poor's 500,"
and "500" are trademarks of The McGraw-Hill  Companies, Inc.
Frank Russell Company is the owner of trademarks and copyrights relating to
the Russell  Indexes.
"Wilshire  5000(R)" and "Wilshire 4500" are trademarks of Wilshire Associates
Incorporated.

<PAGE>

REPORT FROM THE CHAIRMAN

[PHOTO]
JOHN J. BRENNAN

     Vanguard Wellington Fund recorded a 1.6% return during the six months ended
May 31, 2000.  This modest gain was achieved amid  extremely  volatile  markets.
Value  stocks--Wellington  Fund's main  fare--plummeted  early in the period and
then vigorously rebounded.

     Wellington's  return trailed those of its unmanaged index benchmark and the
average  balanced  mutual fund during the six-month  period.  The table at right
presents  the total  return  (capital  change  plus  reinvested  dividends)  for
Wellington and these  comparative  standards.  The composite index is based on a
65%  allocation  to the  Standard & Poor's 500 Index and a 35%  weighting in the
Lehman Brothers Corporate A or Better Bond Index.  Returns for these two indexes
also appear in the table.

     The fund's return is based on a decrease in net asset value from $29.62 per
share on November 30, 1999, to $27.89 per share on May 31, 2000, and is adjusted
for  dividends  of $0.64  per  share  paid  from  net  investment  income  and a
distribution of $1.50 per share paid from net realized capital gains. The fund's
income yield as of May 31 was 4.0%.
------------------------------------------------------------
                                       TOTAL RETURNS
                                     SIX MONTHS ENDED
                                       MAY 31, 2000
------------------------------------------------------------
Vanguard Wellington Fund                     1.6%
------------------------------------------------------------
Average Balanced Fund*                       2.8%
------------------------------------------------------------
Wellington Composite Index**                 2.0%
------------------------------------------------------------
S&P 500 Index                                2.9%
------------------------------------------------------------
Lehman Corporate A or Better Index+         -0.3%
------------------------------------------------------------
*Derived from data provided by Lipper Inc.
**Weighted 65% S&P 500 Index; 35% Lehman Long
  Corporate AA or Better Index through February
  2000; and 35% Lehman Corporate A or Better Index
  thereafter.
+Lehman Long Corporate AA or Better Index through
 February 2000; Lehman Corporate A or Better Index
 thereafter.

THE PERIOD IN REVIEW

The U.S. economy  continued a remarkably strong advance during the first half of
our fiscal  year.  The total output of the economy  during the first  quarter of
calendar 2000 was 5.0% higher--after  adjusting for inflation--than in the first
quarter of 1999. And May marked the 110th month of  uninterrupted  expansion for
the U.S. economy--the longest expansion ever.

         A growing economy  generally means good news for corporate  profits and
for stocks. However, during the past six months, markets were concerned that the
economy might be too robust and that its rapid growth,  combined with a very low
unemployment  rate  (around  4% of the  workforce),  could  light  a fire  under
inflation.  To cool things off, the Federal  Reserve Board raised its target for
short-term  interest  rates three times for a total of 1  percentage  point from
February 2 through May 16.

----------------------------------------------------------------
                                        TOTAL RETURNS
                                       ---------------------
                                   NOV. 30, 1999,    FEB. 29 TO
                                 TO FEB. 29, 2000   MAY 31, 2000
----------------------------------------------------------------
Vanguard Wellington Fund               -7.4%             9.7%
----------------------------------------------------------------
S&P 500/BARRA
 Growth Index                           2.4%            -0.4%
S&P 500/BARRA
 Value Index                           -5.8             10.0
----------------------------------------------------------------
Russell 2000 Growth Index              43.6%           -26.6%
Russell 2000 Value Index                6.5             -0.5
----------------------------------------------------------------
Nasdaq Composite Index                 41.1%           -27.4%
----------------------------------------------------------------

     The stock market, as measured by the Wilshire 5000 Total Market Index, rose

                                       1
<PAGE>

2.4% during the six months.  However, there were frequent,  wide swings in stock
prices,  especially  among  small-capitalization  and technology  issues,  where
valuations  had reached  very high  levels.  The  small-cap  Russell 2000 Growth
Index,  which is heavily  weighted in technology  stocks,  saw a 43.6% gain from
November 30 through February 29, followed by a -26.6% decline from March through
May, resulting in a 5.4% return for the half-year. The table on page 1 shows the
striking shift in Wellington Fund's returns during the period, and the flip-flop
in market leadership from growth stocks to value stocks.

     When the dust cleared, nearly all the major stock indexes registered gains.
However,  in contrast to recent years,  value stocks  slightly  outpaced  growth
stocks over the six months ended May 31.

     For fixed income  investors,  the Fed's efforts to boost interest rates had
mixed  results.  In  response  to the Fed's  1-percentage-point  increase in its
target federal funds rate,  the yield on 3-month U.S.  Treasury bills climbed as
much as 91 basis points (0.91 percentage point), to 6.21% as of May 16. However,
in the  final two weeks of the  period,  rates  fell.  Apparently,  many  market
participants  thought that the Fed's  0.5-percentage-point  increase in rates on
May 16 might slow the economy enough to preempt inflation. By May 31, the 90-day
T-bill yield was 5.62%, up 32 basis points during the half-year.

     Prices  of  longer-term  Treasury  securities  benefited  from a  shrinking
supply,  as the growing federal budget surplus has resulted in reduced  issuance
of new bonds and the  repurchase  of some  outstanding  bonds.  The yield of the
30-year Treasury bond fell 28 basis points, on balance,  ending the half-year at
6.01%.  The yield for the 10-year  Treasury  note rose 8 basis points during the
period,  to 6.27%.  Prices of most corporate and municipal bonds declined during
the  half-year.  The  overall  taxable  bond  market,  as measured by the Lehman
Brothers Aggregate Bond Index, recorded a 1.4% total return, as an average price
decline of about 2% was offset by six-month income of 3.4%.

PERFORMANCE OVERVIEW

The 1.6% return for Wellington Fund during the half-year  lagged the 2.0% return
from our composite stock/bond index and the 2.8% return for the average balanced
fund.  The fund's  comeback  from the early  months of the  fiscal  year was due
largely to the recovery of value  stocks,  although it also was aided by a small
rise in corporate  bond prices from the lows they  recorded  early in the fiscal
half-year.

     For Wellington Fund  shareholders,  the market's  renewed interest in value
stocks was  welcome.  For much of the past two years,  it seemed that  investors
were so excited about the potential of "new economy" stocks that they overlooked
the reality of many "old economy" companies with excellent operations. We firmly
believe that  Wellington's  value  investing  approach is sound,  and that stock
prices  ultimately  depend  on  actual  earnings  and  dividends,  not  just  on
potential. And we thank our shareholders for their loyalty.

     The stock portion of Wellington  Fund, which accounted for about two-thirds
of assets  during the six months,  earned 2.3%, a bit behind the 2.9% return for
the S&P 500 Index, the equity portion of our benchmark.  The bond portion of the
fund  returned  -0.8%  for the  half-year,  versus a -0.3%  return  for our bond
benchmark.

     Our  shortfall  versus the S&P 500 Index was due mainly to  differences  in
emphasis in two sectors:  the fund's lighter stake in technology and its heavier
stake in materials & processing.  The S&P 500's technology stocks,  even after a
-12% tumble in the March-May fiscal quarter, gained 12% for the half-year.  This
hurt the  fund's  relative  performance  because  the index  had a much  heavier
allocation to tech stocks--about 27%, on average, versus 7% for Wellington Fund.
This factor also hurt our results versus

                                       2

<PAGE>

the  average  balanced  fund,  which  holds   approximately  14%  of  assets  in
technology.The  materials  group,  where  Wellington's  average  stake of 14% of
assets was more than three times the index  weighting,  was one of the  market's
laggards, declining about -6%.

     On the plus side,  our holdings in the  financial  services  and  utilities
groups,  which  together  account  for  about  one-fourth  of the  fund's  stock
position,  outperformed those segments of the index. Wellington Fund's financial
stocks earned a bit more than 10%, versus 4% for the S&P 500's financial sector.
And our utility holdings returned -1%, versus -14% for those in the index.

IN SUMMARY

This spring's sudden rise of downtrodden  value stocks and the sharp declines in
high-   flying    technology-related    stocks   demonstrated   the   short-term
unpredictability  and volatility of financial  markets.  Sudden shifts in market
psychology and in the economic  environment  happen  periodically,  although the
timing and duration of such episodes are impossible to foretell with precision.

     Such  unpredictability  is precisely why we advocate  diversification and a
long-term  orientation--the  hallmarks of Vanguard Wellington Fund, the nation's
oldest balanced mutual fund.  Investors who maintain exposure to the major asset
classes through balanced,  well-diversified  portfolios are in a strong position
to withstand market turbulence. So, once you've crafted an investment plan based
on your own goals, time horizon,  and risk tolerance,  we suggest that you stick
with it.



/S/
John J. Brennan
Chairman and Chief Executive Officer

June 15, 2000


--------------------------------------------------------------------------------
NOTICE TO SHAREHOLDERS

In  the  past,   Vanguard   Wellington   Fund's  quarterly  income  dividend  to
shareholders  was paid at a "set rate" (most recently  $0.25 per share).  Income
the fund earned in excess of the set rate was distributed in the December income
dividend.  Going forward,  the fund will distribute  income on a "pay as you go"
basis, rather than according to a set rate. This change provides for a more even
distribution of income throughout the year.
--------------------------------------------------------------------------------

                                       3

<PAGE>

--------------------------------------------------------------------------------
In Memory

It is with  great  sadness  that I  report  the  death  of John C.  Sawhill,  an
independent  trustee of the fund and a member of The Vanguard  Group's  board of
directors  since 1991.  John, an economist who was president and chief executive
officer  of The  Nature  Conservancy,  died on May 18 at age 63. He was a senior
lecturer at the Harvard  Business School and had formerly served as president of
New York  University  and as deputy  secretary of the U.S.  Department of Energy
under President Jimmy Carter.  John was a remarkable man who was full of energy,
vigor,  and life. His experience and wisdom added a great deal to Vanguard,  and
his death is a blow to everyone  who knew and loved him.  Though  John's work on
behalf of our funds was often  carried on behind the scenes,  he was a dedicated
advocate for the best interests of our shareholders. He will be missed.
--------------------------------------------------------------------------------

                                       4

<PAGE>


THE MARKETS IN PERSPECTIVE
SIX MONTHS ENDED MAY 31, 2000

Strong  crosscurrents  pushed and  tugged at  financial  markets  during the six
months ended May 31, 2000.  Positive  influences  included very strong  economic
growth and rising corporate profits.  Negative factors included tighter monetary
policy, higher inflation, and concerns about stock valuations.

         Interest  rates  rose in most  segments  of the bond  market,  and bond
prices slipped. Stock prices rose slightly, on balance, although wide day-to-day
price swings were frequent.

         Uncertainty  in  both  the  bond  and  stock  markets  centered  on the
surprising  performance of the U.S. economy, which grew at a torrid 7.3% pace in
the final  three  months of 1999 and at a  still-robust  5.4%  during  the first
quarter of 2000.  With U.S.  unemployment  at around 4.0% of the workforce,  the
Federal  Reserve Board  continued to be concerned  that  inflation  would worsen
unless the economic expansion slowed.  The Fed raised short-term  interest rates
by 0.25 percentage  point in February and again in March,  before boosting rates
by  0.50   percentage   point  in  mid-May.   These  boosts,   following   three
quarter-percentage-point increases in 1999, took the Fed's target for short-term
rates to 6.5%.  By the end of May,  some  signs of  slowing  had  emerged in the
economy,  although it was not certain  that the Fed had  finished  applying  the
brakes.


----------------------------------------------------------------------
                                              TOTAL RETURNS
                                        PERIODS ENDED MAY 31, 2000
                                       -------------------------------
                                      6 MONTHS    1 YEAR     5 YEARS*
----------------------------------------------------------------------
STOCKS
  S&P 500 Index                        2.9%        10.5%       23.8%
  Russell 2000 Index                   5.5          9.9        13.5
  Wilshire 5000 Index                  2.4         10.7        22.3
  MSCI EAFE Index                      0.7         17.4        10.4
----------------------------------------------------------------------
BONDS
  Lehman Aggregate Bond Index          1.4%        2.1%         6.0%
  Lehman 10 Year Municipal Bond Index  0.7        -0.2          5.3
  Salomon Smith Barney 3-Month
   U.S. Treasury Bill Index            2.7         5.2          5.2
----------------------------------------------------------------------
OTHER
  Consumer Price Index                 1.8%        3.1%         2.4%
----------------------------------------------------------------------
*Annualized.

         Evidence on inflation was ambiguous. The Consumer Price Index increased
1.8% and 3.1%, respectively, for the six- and twelve-month periods ended May 31,
but  much of the  increase  was due to  higher  energy  and  food  prices.  Core
inflation,  which excludes those  sectors,  was up a less-scary  2.4% during the
twelve months ended May 31.

U.S. STOCK MARKETS

Optimism about long-term prospects for technology, media, and telecommunications
companies  dominated  the equity  markets  through the first three months of the
period.  But  sentiment  shifted  suddenly  in  mid-March,  sending the tech and
telecom  groups  sharply  lower.  The tech-heavy  Nasdaq  Composite  Index,  for
example, registered a 41.1% return from November 30 through February 29, only to
give back most of the gains  over the next  three  months.  End  result:  a 2.4%
return for the six months ended May 31.

         The overall stock market,  as measured by the Wilshire 5000 Index, also
returned 2.4%.  Value stocks,  those  characterized  by  above-average  dividend
yields and below-average  price/earnings and price/book value ratios,  enjoyed a
resurgence beginning in mid-March.

                                       5

<PAGE>


For the full six months,  the value components of both the  large-capitalization
S&P 500 Index and the  small-cap  Russell 2000 Index  outperformed  the indexes'
growth components.

         Within  the S&P  500,  the  half-year's  best  return  was the 48% gain
recorded by "other energy" stocks, including oil-drilling and services companies
that  benefited  from a  continuing  rise in oil prices.  The  producer-durables
sector gained 18%, largely because of big gains for a number of manufacturers of
telecommunications  gear and  semiconductor  testing and fabrication  equipment.
Technology  stocks,  which now account for about  one-quarter of the total stock
market's value, gained about 12% for the six months.

         Poor performers included the utilities sector (-14% return),  which was
hurt by downturns in several large telephone  stocks,  and many consumer staples
(-9%) and  consumer-discretionary  (-6%)  companies.  Prices fell  steeply for a
number of high-profile  retailers,  beverage and food makers, tobacco companies,
and entertainment enterprises.

U.S. BOND MARKETS

The Federal  Reserve's  influence on interest  rates is strongest for short-term
securities.Over  the six months, the Fed pushed up the rate charged on overnight
loans  between  banks by 1  percentage  point to 6.5%.  Yields of  3-month  U.S.
Treasury bills rose only one-third as far (0.32  percentage  point,  or 32 basis
points),  to 5.62%.  And long-term  Treasury yields moved even less. The 10-year
Treasury  note rose just 8 basis  points to 6.27% as of May 31, and yields  fell
for very long-term  Treasury bonds due to a cutback in issuance of new bonds. As
a result of the shrinking  supply of long-term  bonds,  the yield of the 30-year
Treasury  bond  declined  28  basis  points--from  6.29%  to  6.01%--during  the
half-year.

         Because  short-term  rates moved higher while long-term rates declined,
there  was an  unusual  "inversion"  in the  yield  curve.  Instead  of  sloping
upward--with   yields   increasing   along  with  the   maturity   of   Treasury
securities--the  curve sloped down. The 6.01% yield of 30-year Treasuries on May
31 was 70 basis points below the 6.71% yield on 3-year Treasury notes.

         Corporate  and  municipal  bonds did not  perform  as well as  Treasury
securities,  and the yield curve for these sectors remained  positive--yields of
long-term bonds remained higher than those of short-term securities.  The Lehman
Aggregate  Bond Index,  a proxy for the overall  taxable bond  market,  returned
1.4%, as a price decline of 2% offset most of the 3.4% income  provided by bonds
during the half-year.

INTERNATIONAL STOCK MARKETS

A stronger  U.S.  dollar and weak Asian  markets made the half-year a lackluster
one for U.S.  investors in foreign stocks.  Improving economic growth in most of
the world  helped a number of  markets  in Europe,  Asia,  and Latin  America to
produce good gains in their local currencies. However, the U.S. dollar increased
in value versus most currencies,  significantly reducing the returns received by
dollar-based  investors.  (Conversely,  when the dollar falls in value,  returns
from abroad are enhanced for U.S. investors.)

     The overall  return in dollars from developed  foreign  markets was a scant
0.7%,  as  measured  by  the  Morgan  Stanley  Capital   International   Europe,
Australasia, Far East (EAFE) Index. However, in local currencies, the EAFE Index
return for the six months was a very respectable 7.8%.

     In  Europe,   where  stocks  benefited  from  a  continuance  of  corporate
acquisitions,  an average 12.8% gain in local-currency terms was reduced to 4.7%
for U.S.  investors  because of the  dollar's  strength.  Stocks in the  Pacific
region,  which is  dominated  by Japan,  returned  -7.0% in dollars,  as a -2.0%
return in local-currency terms was further diminished by the dollar's gains. The
Select Emerging Markets Free Index returned -2.8% in U.S. dollars.

                                       6

<PAGE>

REPORT FROM THE ADVISER

Vanguard Wellington Fund returned 1.6% during the six months ended May 31, 2000.
This was a bit behind the 2.8% return for the average balanced fund and the 2.0%
gain recorded by the unmanaged Wellington Composite Index, which is weighted 65%
in the S&P 500 Index and 35% in the Lehman Corporate A or Better Index.

         The equity portion of the Wellington  Fund, with about 68% of assets at
the end of May,  gained 2.3% during the first half of our fiscal year,  compared
with a 2.9% return for the S&P 500 Index.  The fixed income portion of your fund
posted a -0.8% return,  half a percentage  point behind the -0.3% return for the
bond index.

         The  stock  market  was quite  volatile  during  the six  months of the
period, especially in the technology sector. During the first three months, when
tech stocks were at their hottest, Wellington Fund underperformed its benchmarks
by a rather wide margin. But during the final three months of the half-year, the
fund outpaced its benchmarks and nearly closed the gap.

         The sharp  rise in  technology  stocks  through  early  March,  and the
subsequent severe  correction in the sector,  occurred against the backdrop of a
very high economic growth rate--an annual pace well over 6.0% during the winter.
The strong economic  expansion  raised the prospect of higher  inflation,  which
unsettled the market. We believe that inflation will pick up some as a result of
increased labor costs for employers and that rising interest rates will slow the
economy. Even so, we expect corporate earnings growth to remain healthy, in part
because of economic growth in Asia and Europe.

         During the past six months,  we slightly reduced the fund's exposure to
the financial  services sector,  because we think earnings among these companies
could be hurt by the  combination  of a  slowing  economy  and  somewhat  higher
inflation.  We  also  reduced  our  exposure  to  some  of our  holdings  in the
technology  sector,  after some of these  stocks  rose to levels  that made them
quite  expensive  by our  standards.  Stocks added to the fund during the period
include Albertson's (the food retailer) and Honeywell (a diversified  technology
and  manufacturing  company).  Our exposure to the health care sector  increased
because a number of  holdings,  such as  Pharmacia,  made  sharp  gains  after a
lackluster 1999.

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

The adviser  believes  that a reasonable  level of current  income and long-term
growth in capital  can be achieved  without  undue risk by holding 60% to 70% of
assets in equities and the balance in fixed income  securities.  Consistent with
this approach,  dividend-paying stocks dominate the fund's equity segment, while
high-quality  corporate,  U.S. Treasury, and mortgage-backed  securities make up
the bond segment.
--------------------------------------------------------------------------------

         The past  half-year  was a  difficult  period  for the  corporate  bond
market.  The Federal Reserve Board raised short-term  interest rates to head off
inflation.  But prices of Treasury  securities  were supported by the perception
that most of the U.S.  Treasury's  growing budget surplus will be used to retire
outstanding  Treasury  bonds.  Corporate bond prices weren't as firm as those of
Treasuries.  However,  the credit  condition of corporate  bond issuers is still
quite strong,  and we believe that  corporate  bond yields are  attractive  when
compared with the expected rate of inflation.

         Although our "value" style of investing  fared much better in the final
months of the half-year,  the markets remain volatile. We are encouraged by what
appears to be more  rational  behavior  by the market in

                                       7

<PAGE>

recent months.  And we expect that, as the world economy  continues to show good
strength, the securities your fund holds will do relatively well.



ERNST H. VON METZSCH,  SENIOR VICE  PRESIDENT AND PORTFOLIO  MANAGER
WELLINGTON MANAGEMENT COMPANY, LLP


June 12, 2000
                                       8

<PAGE>

PERFORMANCE SUMMARY
WELLINGTON FUND

All of the data on this page 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.


TOTAL INVESTMENT RETURNS: NOVEMBER 30, 1979-MAY 31, 2000
--------------------------------------------------------
              WELLINGTON FUND       COMPOSITE*
FISCAL   CAPITAL  INCOME   TOTAL    TOTAL
YEAR     RETURN   RETURN   RETURN   RETURN
--------------------------------------------------------
1980     18.1%    9.2%     27.3%    21.8%
1981     -5.6     8.4      2.8      -0.4
1982     10.1     9.7      19.8     22.4
1983     17.0     8.7      25.7     19.2
1984     0.6      7.7      8.3      7.2
1985     18.3     8.2      26.5     27.5
1986     17.3     7.0      24.3     26.4
1987     -7.1     2.8      -4.3     -2.0
1988     13.8     7.2      21.0     19.3
1989     13.4     6.6      20.0     25.7
1990     -8.4     5.8      -2.6     -0.2
--------------------------------------------------------


             WELLINGTON FUND        COMPOSITE*
FISCAL   CAPITAL  INCOME   TOTAL    TOTAL
YEAR     RETURN   RETURN   RETURN   RETURN
--------------------------------------------------------
1991     10.2%    6.6%     16.8%    19.2%
1992     9.2      5.8      15.0     15.9
1993     8.4      5.2      13.6     11.8
1994     -5.2     4.4      -0.8     -1.6
1995     27.3     5.4      32.7     33.0
1996     16.7     4.6      21.3     19.8
1997     14.2     4.4      18.6     21.6
1998     9.6      4.2      13.8     20.1
1999     -0.5     4.1      3.6      11.0
2000**   -0.7     2.3      1.6      2.0
--------------------------------------------------------
*Weighted  65% S&P 500 Index;  35% Lehman Long  Corporate  AA or Better
  Index through February 2000; and 35% Lehman Corporate A or Better Index
  thereafter.
**Six months ended May 31, 2000.
See  Financial  Highlights  table  on page 22 for  dividend  and  capital  gains
information for the past five years.


AVERAGE ANNUAL TOTAL RETURNS: PERIODS ENDED MARCH 31, 2000
--------------------------------------------------------------------------------
                                                                 10 YEARS
                      INCEPTION                         ------------------------
                        DATE      1 YEAR    5 YEARS      CAPITAL  INCOME   TOTAL
------------------------------------------------------- ------------------------
Wellington Fund      7/1/1929      2.82%     15.15%      7.86%    4.92%   12.78%
--------------------------------------------------------------------------------
*SEC rules require that we provide this average annual total return  information
through the latest calendar quarter.

                                       9

<PAGE>

FUND PROFILE
WELLINGTON FUND

This  Profile  provides a snapshot of the fund's  characteristics  as of May 31,
2000,  compared where  appropriate to an unmanaged  index.  Key elements of this
Profile are defined on pages 12 and 13.

TOTAL FUND CHARACTERISTICS                    FUND ASSET ALLOCATION*
---------------------------------             ----------------------------------
Yield            4.0%                         CASH RESERVES          1%
Turnover Rate    26%*                         BONDS                 31%
Expense Ratio  0.30%*                         STOCKS                68%
Cash Reserves   1.5%

*Annualized.


TOTAL FUND VOLATILITY MEASURES
------------------------------------------
                   WELLINGTON      S&P 500
------------------------------------------
R-Squared             0.75           1.00
Beta                  0.57           1.00


TEN LARGEST STOCKS
(% OF EQUITY ASSETS)
-----------------------------------------------
Citigroup, Inc.                            3.4%
Pharmacia Corp.                            3.4
Alcoa Inc.                                 2.7
CIGNA Corp.                                2.7
Marsh & McLennan Cos., Inc.                2.5
International Business Machines Corp.      2.4
Dow Chemical Co.                           2.0
Kimberly-Clark Corp.                       2.0
Johnson & Johnson                          1.8
Wachovia Corp.                             1.8
-----------------------------------------------
Top Ten                                   24.7%
-----------------------------------------------
Top Ten as % of Total Net Assets          16.6%



SECTOR DIVERSIFICATION (% OF COMMON STOCKS)
--------------------------------------------------------------------------------
                                    MAY 31, 1999             MAY 31, 2000
                                    --------------------------------------------
                                     WELLINGTON        WELLINGTON       S&P 500
                                    --------------------------------------------
Auto & Transportation                     10.9%            9.0%            1.9%
Consumer Discretionary                     7.1             6.8            12.0
Consumer Staples                           2.5             3.4             5.9
Financial Services                        16.1            17.6            14.7
Health Care                                9.8            10.7            10.5
Integrated Oils                           10.0             9.9             4.9
Other Energy                               2.1             1.8             1.9
Materials & Processing                    15.4            12.5             2.5
Producer Durables                          8.2             9.7             3.9
Technology                                 6.4             4.9            25.8
Utilities                                  8.1             8.7             9.1
Other                                      3.4             5.0             6.9
--------------------------------------------------------------------------------

                                       10

<PAGE>

EQUITY CHARACTERISTICS
-----------------------------------------------
                      WELLINGTON       S&P 500
-----------------------------------------------
Number of Stocks              99           500
Median Market Cap         $21.4B        $86.0B
Price/Earnings Ratio       18.7x         28.0x
Price/Book Ratio            2.5x          5.0x
Dividend Yield              2.5%          1.2%
Return on Equity           18.6%         23.7%
Earnings Growth Rate       7.3%          16.2%
Foreign Holdings          12.4%           1.3%



FIXED INCOME CHARACTERISTICS
-----------------------------------------------
                                       LEHMAN
                      WELLINGTON        INDEX*
-----------------------------------------------
Number of Bonds              204        5,629
Yield to Maturity           8.0%         7.5%
Average Coupon              7.0%         6.8%
Average Maturity      12.2 years    8.9 years
Average Quality              Aa3          Aaa
Average Duration       6.5 years    5.0 years

*Lehman Aggregate Bond Index.


DISTRIBUTION BY ISSUER
(% OF BONDS)
-----------------------------------------------
Asset-Backed                           0.0%
Commercial Mortgage-Backed             3.2
Finance                               25.1
Foreign                               10.8
Government Mortgage-Backed             3.0
Industrial                            30.1
Treasury/Agency                       14.2
Utilities                             12.6
Other                                  1.0
-----------------------------------------------
Total                                100.0%


EQUITY INVESTMENT FOCUS
----------------------------
[GRID]
STYLE                  VALUE
MARKET CAP             LARGE


FIXED INCOME INVESTMENT FOCUS
----------------------------
[GRID]
AVERAGE MATURITY       MEDIUM
CREDIT QUALITY         INVESTMENT-GRADE CORPORATE


DISTRIBUTION BY CREDIT QUALITY
(% OF BONDS)
------------------------------
Treasury/Agency        14.2%
Aaa                    11.4
Aa                     20.0
A                      40.0
Baa                    13.6
Ba                      0.5
B                       0.0
Not Rated               0.3
------------------------------
Total                 100.0%

                                       11

<PAGE>


AVERAGE COUPON. The average interest rate paid on the securities held by a fund.
It is expressed as a percentage of face value.

AVERAGE  DURATION.  An  estimate  of how much a bond  fund's  share  price  will
fluctuate in response to a change in interest  rates. To see how the price could
shift,  multiply the fund's  duration by the change in rates.  If interest rates
rise by one percentage point, the share price of a fund with an average duration
of five years  would  decline  by about 5%. If rates  decrease  by a  percentage
point, the fund's share price would rise by 5%.

AVERAGE  MATURITY.  The average  length of time until bonds held by a fund reach
maturity  (or are  called) and are  repaid.  In general,  the longer the average
maturity, the more a fund's share price will fluctuate in response to changes in
market interest rates.

AVERAGE QUALITY.  An indicator of credit risk, this figure is the average of the
ratings assigned to a fund's securities holdings by credit-rating  agencies. The
agencies make their  judgment after  appraising an issuer's  ability to meet its
obligations.  U.S. Treasury securities are considered to have the highest credit
quality.

BETA. A measure of the magnitude of a fund's past  share-price  fluctuations  in
relation  to the ups and downs of the  overall  market  (or  appropriate  market
index).  The market (or index) is assigned a beta of 1.00, so a fund with a beta
of 1.20  would have seen its share  price  rise or fall by 12% when the  overall
market rose or fell by 10%.

CASH  RESERVES.  The  percentage  of a  fund's  net  assets  invested  in  "cash
equivalents"--highly  liquid,  short-term,   interest-bearing  securities.  This
figure does not include cash invested in futures contracts to simulate stock and
bond investment.

DISTRIBUTION BY CREDIT QUALITY.  This breakdown of a fund's securities by credit
rating can help in gauging the risk that  returns  could be affected by defaults
or other credit problems.

DISTRIBUTION  BY ISSUER.  A breakdown of a fund's  holdings by type of issuer or
type of instrument.

DIVIDEND  YIELD.  The current,  annualized  rate of dividends paid on a share of
stock,  divided by its current  share price.  For a fund,  the weighted  average
yield for stocks it holds.

EARNINGS  GROWTH RATE.  The average  annual rate of growth in earnings  over the
past five years for the stocks now in a fund.

EQUITY  INVESTMENT  FOCUS.  This grid  indicates  the  focus of a fund's  equity
holdings in terms of two attributes:  market capitalization  (large,  medium, or
small) and relative valuation (growth, value, or a blend).

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.

FIXED INCOME  INVESTMENT  FOCUS. This grid indicates the focus of a fund's fixed
income holdings in terms of two attributes:  average maturity (short, medium, or
long) and average credit quality (Treasury/agency,  investment-grade  corporate,
or below investment-grade).

FOREIGN HOLDINGS. The percentage of a fund's equity assets represented by stocks
or American Depositary Receipts of companies based outside the United States.

FUND ASSET  ALLOCATION.  This chart shows the  proportions of a fund's  holdings
allocated to different types of assets.

MEDIAN  MARKET  CAP.  An  indicator  of the  size of  companies  in which a fund
invests;  the  midpoint  of  market   capitalization   (market  price  x  shares
outstanding) of a fund's stocks, weighted by the proportion of the fund's assets
invested  in each  stock.  Stocks  representing  half of the fund's  assets have
market capitalizations above the median, and the rest are below it.

                                       12

<PAGE>

NUMBER OF BONDS.  An indicator of  diversification.  The more separate  issues a
fund holds,  the less  susceptible  it is to a price  decline  stemming from the
problems of a particular bond issuer.

NUMBER OF STOCKS. An indicator of diversification. The more stocks a fund holds,
the more  diversified  it is and the more  likely  to  perform  in line with the
overall stock market.

PRICE/BOOK  RATIO.  The share price of a stock divided by its net worth, or book
value,  per share.  For a fund,  the weighted  average  price/book  ratio of the
stocks it holds.

PRICE/EARNINGS  RATIO.  The ratio of a stock's  current  price to its  per-share
earnings over the past year. For a fund, the weighted  average P/E of the stocks
it holds. P/E is an indicator of market expectations about corporate  prospects;
the higher the P/E, the greater the expectations for a company's future growth.

R-SQUARED.  A measure of how much of a fund's past  returns can be  explained by
the returns from the overall market (or its benchmark  index). If a fund's total
return  were  precisely  synchronized  with the  overall  market's  return,  its
R-squared  would  be 1.00.  If a  fund's  returns  bore no  relationship  to the
market's returns, its R-squared would be 0.

RETURN ON  EQUITY.  The annual  average  rate of return  generated  by a company
during the past five years for each dollar of  shareholder's  equity (net income
divided by  shareholder's  equity).  For a fund, the weighted  average return on
equity for the companies whose stocks it holds.

SECTOR DIVERSIFICATION. The percentages of a fund's common stocks that come from
each of the major industry groups that compose the stock market.

TEN LARGEST STOCKS.  The percentage of equity assets that a fund has invested in
its ten largest stocks. As this percentage rises, a fund's returns are likely to
be more  volatile  because  they are more  dependent  on the  fortunes  of a few
companies.

TURNOVER RATE. An indication of trading  activity during the period.  Funds with
high  turnover  rates  incur  higher  transaction  costs and are more  likely to
distribute capital gains (which are 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.

YIELD  TO  MATURITY.  The  rate of  return  an  investor  would  receive  if the
securities held by a fund were held to their maturity dates.

                                       13

<PAGE>

FINANCIAL STATEMENTS
MAY 31, 2000 (UNAUDITED)


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 on both a dollar and per-share  basis.
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.

--------------------------------------------------------------------------------
                                                                    MARKET
                                                                    VALUE*
WELLINGTON FUND                                SHARES                (000)
--------------------------------------------------------------------------------
COMMON STOCKS (67.8%)
--------------------------------------------------------------------------------
AUTO & TRANSPORTATION (6.1%)
 Ford Motor Co.                             5,449,700           $  264,651
 Union Pacific Corp.                        6,195,500              262,147
 General Motors Corp.                       2,004,208              141,547
 Delphi Automotive
  Systems Corp.                             8,649,643              156,234
 British Airways PLC ADR                    2,600,000              146,413
 Canadian National Railway Co.              4,000,000              107,250
 Norfolk Southern Corp.                     5,500,100               97,971
 CSX Corp.                                  3,984,200               86,656
 KLM Royal Dutch Air Lines
  NV ADR                                    3,958,646               86,101
 Genuine Parts Co.                          1,032,400               24,649
                                                                ----------
                                                                 1,373,619
                                                                ----------
CONSUMER DISCRETIONARY (4.6%)
 Kimberly-Clark Corp.                       5,000,000              302,500
 Whirlpool Corp.                            2,700,000              153,056
 Gillette Co.                               4,500,000              150,188
 Black & Decker Corp.                       3,500,000              127,750
 Sears, Roebuck & Co.                       3,000,000              110,812
 May Department Stores Co.                  3,462,000              104,076
 Eastman Kodak Co.                          1,600,000               95,600
                                                                ----------
                                                                 1,043,982
                                                                ----------
CONSUMER STAPLES (2.3%)
 Albertson's, Inc.                          4,000,000              146,500
 Philip Morris Cos., Inc.                   5,000,000              130,625
 Bestfoods                                  2,000,000              129,000
 H.J. Heinz Co.                             3,000,000              117,563
                                                                ----------
                                                                   523,688
                                                                ----------
FINANCIAL SERVICES (11.9%)
 Citigroup, Inc.                            8,500,000              528,594
 CIGNA Corp.                                4,596,600              408,236
 Marsh & McLennan Cos., Inc.                3,442,500              378,890
 Wachovia Corp.                             4,000,000              276,500
 U.S. Bancorp                               8,430,300              219,188
 MBIA, Inc.                                 2,677,600              154,799
 Bank of America Corp.                      2,102,680              116,830
 Ace, Ltd.                                  4,000,000              107,250
 Equity Office Properties
  Trust REIT                                4,000,000              106,250
 Jefferson-Pilot Corp.                      1,450,000               99,506
 Spieker Properties, Inc. REIT              2,000,000               92,875
 Archstone Communities
  Trust REIT                                4,000,000               89,750
 Bank One Corp.                             1,547,400               51,161
 Starwood Hotels & Resorts
  Worldwide, Inc.                           1,126,500               33,302
 Kimco Realty Corp. REIT                      794,900               32,193
                                                                ----------
                                                                 2,695,324
                                                                ----------
HEALTH CARE (7.3%)
 Pharmacia Corp.                            9,954,826              517,029
 Johnson & Johnson                          3,100,000              277,450
 Baxter International, Inc.                 3,874,700              257,668
 Abbott Laboratories                        6,000,000              244,125
 American Home Products Corp.               4,174,700              224,912
 Aventis SA ADR                             2,000,000              127,875
                                                                ----------
                                                                 1,649,059
                                                                ----------
INTEGRATED OILS (6.7%)
 Royal Dutch Petroleum Co. ADR              4,100,000              255,994
 BP Amoco PLC ADR                           4,000,000              217,500
 Repsol SA ADR                              9,105,000              191,774


                                       14

<PAGE>

--------------------------------------------------------------------------------
                                                                    MARKET
                                                                    VALUE*
                                               SHARES                (000)
--------------------------------------------------------------------------------
Chevron Corp.                               2,000,000              184,875
Conoco Inc. Class B                         5,706,267              162,629
Total Fina Elf SA ADR                       2,000,000              157,875
Texaco Inc.                                 2,477,000              142,273
USX-Marathon Group                          5,000,000              135,937
Unocal Corp.                                1,945,000               74,761
                                                                ----------
                                                                 1,523,618
                                                                ----------
OTHER ENERGY (1.2%)
 Halliburton Co.                            2,000,000              102,000
 Sunoco, Inc.                               3,000,000               96,937
 Schlumberger Ltd.                          1,000,000               73,562
                                                                ----------
                                                                   272,499
                                                                ----------
MATERIALS & PROCESSING (8.5%)
 Alcoa Inc.                                 7,000,000              409,063
 Dow Chemical Co.                           2,838,400              303,886
 Phelps Dodge Corp.                         3,604,900              161,770
 PPG Industries, Inc.                       2,700,000              133,819
 E.I. du Pont de Nemours & Co.              2,710,872              132,833
 Alcan Aluminium Ltd.                       4,000,000              131,250
 Willamette Industries, Inc.                3,171,000              103,057
 Temple-Inland Inc.                         1,984,600               98,610
 Corus Group PLC ADR                        6,000,000               90,000
 International Paper Co.                    2,500,000               87,031
 Imperial Chemical
  Industries PLC ADR                        2,515,000               78,594
 Weyerhaeuser Co.                           1,362,600               67,619
 Cabot Corp.                                2,238,300               58,336
 Lubrizol Corp.                             1,387,100               32,077
 Crompton Corp.                             2,508,463               30,415
                                                                ----------
                                                                 1,918,360
                                                                ----------
PRODUCER DURABLES (6.6%)
   Alcatel SA ADR                           5,000,000              272,813
(1)Northrop Grumman Corp.                   3,500,000              268,187
   Xerox Corp.                              7,800,000              211,575
   Emerson Electric Co.                     3,500,000              206,500
   Caterpillar, Inc.                        3,000,000              114,750
   Pall Corp.                               4,923,700              103,398
   United Technologies Corp.                1,500,000               90,656
   Pitney Bowes, Inc.                       2,000,000               87,000
   Parker Hannifin Corp.                    1,704,800               71,069
   Thomas & Betts Corp.                     2,284,500               64,823
                                                                ----------
                                                                 1,490,771
                                                                ----------
TECHNOLOGY (3.3%)
 International Business
  Machines Corp.                            3,400,000              364,863
 Hewlett-Packard Co.                        1,500,000              180,188
 Motorola, Inc.                             1,653,500              155,016
oGeneral Motors Corp. Class H                 528,018               51,977
                                                                ----------
                                                                   752,044
                                                                ----------
UTILITIES (5.9%)
 Bell Atlantic Corp.                        5,136,000              271,566
 Duke Energy Corp.                          4,000,000              233,000
 ALLTEL Corp.                               2,523,400              165,125
 SBC Communications Inc.                    3,072,600              134,234
 Unicom Corp.                               3,000,000              125,062
 Cinergy Corp.                              4,355,000              115,952
 TXU Corp.                                  2,490,000               89,017
 Pinnacle West Capital Corp.                2,263,600               80,924
 Carolina Power & Light Co.                 2,200,000               75,625
 FPL Group, Inc.                              957,000               47,372
                                                                ----------
                                                                 1,337,877
                                                                ----------
OTHER (3.4%)
   Minnesota Mining &
    Manufacturing Co.                       2,000,000              171,500
(1)Cooper Industries, Inc.                  5,085,700              170,371
   Canadian Pacific Ltd.                    6,000,800              144,769
   Norsk Hydro AS ADR                       3,131,700              119,200
   Raytheon Co. Class A                     4,500,000              106,031
   Honeywell International Inc.             1,000,000               54,688
                                                                ----------
                                                                   766,559
                                                                ----------
--------------------------------------------------------------------------
TOTAL COMMON STOCKS
(COST $10,779,889)                                              15,347,400
--------------------------------------------------------------------------
                                                Face
                                              Amount
                                               (000)
--------------------------------------------------------------------------
CORPORATE BONDS (20.8%)
--------------------------------------------------------------------------
FINANCE (7.7%)
Ace INA Holdings Inc.
  8.20%, 8/15/2004                             19,000               18,771
Allstate Corp.
  6.75%, 5/15/2018                             40,000               33,242
Ambac, Inc.
  7.50%, 5/1/2023                              25,000               22,503
American Re Corp.
  7.45%, 12/15/2026                            46,345               41,489
Aon Corp.
  6.90%, 7/1/2004                              48,000               45,373
Associates Corp. of North America
  6.875%, 11/15/2008                           50,000               46,041
BB&T Corp.
  7.25%, 6/15/2007                             36,900               34,938
Banc One Corp.
  9.875%, 3/1/2019                             20,000               21,928
Bank of America Corp.
  7.20%, 4/15/2006                             20,000               19,226
Bank of America Corp.
  7.80%, 2/15/2010                             29,000               28,263
BankBoston Corp.
  6.625%, 12/1/2005                            27,000               25,201
British Gas Finance
  6.625%, 6/1/2018                             50,000               42,594
The Chase Manhattan Corp.
  6.50%, 1/15/2009                             50,000               45,184
Cincinnati Financial Corp.
  6.90%, 5/15/2028                             43,500               35,462
Citicorp
  6.75%, 8/15/2005                             40,000               38,142
Comerica Bank
  8.375%, 7/15/2024                            20,500               19,939
Dean Witter, Discover & Co.
  6.75%, 10/15/2013                            24,275               21,283
  7.07%, 2/10/2014                             17,500               15,703
Farmers Exchange Capital
  7.05%, 7/15/2028                             34,000               26,559
First Chicago Corp.
  6.375%, 1/30/2009                            48,500               42,778
First Colony Corp.
  6.625%, 8/1/2003                             34,805               33,614
First Union Corp.
  7.50%, 4/15/2035                             30,000               29,323
Fleet Financial Group
  6.875%, 1/15/2028                            50,000               41,506

                                       15

<PAGE>

--------------------------------------------------------------------------------
                                                 FACE               MARKET
                                               AMOUNT               VALUE*
WELLINGTON FUND                                 (000)                (000)
--------------------------------------------------------------------------------
Ford Motor Credit
  6.70%, 7/16/2004                        $    45,000          $    43,133
General Electric Capital Corp.
  7.25%, 2/1/2005                              25,000               24,737
  8.125%, 5/15/2012                            30,000               31,121
General Motors Acceptance Corp.
  6.00%, 4/1/2011                              27,370               23,115
General Re Corp.
  9.00%, 9/12/2009                             32,000               33,949
IBM Credit Corp.
  7.00%, 1/28/2002                             14,500               14,411
Jackson National Life Insurance Co.
  8.15%, 3/15/2027                             25,730               23,975
Liberty Mutual Insurance Co.
  7.875%, 10/15/2026                           56,210               46,835
Lumbermens Mutual Casualty Co.
  9.15%, 7/1/2026                              55,000               48,214
Metropolitan Life Insurance Co.
  7.70%, 11/1/2015                             51,000               48,805
NBD Bancorp, Inc.
  7.125%, 5/15/2007                            25,000               23,519
National City Bank Columbus
  7.25%, 7/15/2010                             25,000               23,318
National City Bank Pennsylvania
  7.25%, 10/21/2011                            20,000               18,317
NationsBank Corp.
  7.80%, 9/15/2016                             50,000               47,756
Northern Trust Corp.
  6.65%, 11/9/2004                             28,000               26,694
Norwest Financial Inc.
  6.25%, 12/15/2007                            35,000               31,272
Pacific Mutual Life
  7.90%, 12/30/2023                            20,000               18,603
Pitney Bowes Credit Corp.
  8.55%, 9/15/2009                             41,890               43,672
Provident Cos., Inc.
  7.25%, 3/15/2028                             40,000               30,538
Prudential Insurance Co.
  7.65%, 7/1/2007                              20,000               19,209
Frank Russell Co.
  5.625%, 1/15/2009                            50,000               43,065
SAFECO Corp.
  7.875%, 3/15/2003                            33,285               32,794
SunTrust Bank Atlanta
  7.25%, 9/15/2006                             54,000               51,532
Torchmark Corp.
  7.875%, 5/15/2023                            45,000               38,674
Toyota Motor Credit Corp.
  5.50%, 12/15/2008                            50,000               43,634
Transamerica Financial Corp.
  6.40%, 9/15/2008                             29,265               26,234
UNUM Corp.
  6.75%, 12/15/2028                            30,000               21,431
US Bank NA Minnesota
  5.625%, 11/30/2005                           50,000               44,873
Wachovia Corp.
  5.625%, 12/15/2008                           55,000               46,666
Washington Mutual, Inc.
  7.50%, 8/15/2006                             50,000               48,009
                                                                ----------
                                                                 1,747,167
                                                                ----------
--------------------------------------------------------------------------------
                                                 FACE               MARKET
                                               AMOUNT               VALUE*
                                                (000)                (000)
--------------------------------------------------------------------------------
INDUSTRIAL (9.2%)
Airtouch Communications Inc.
  6.65%, 5/1/2008                         $    50,000          $    45,519
Albertson's Inc.
  7.75%, 6/15/2026                             45,000               41,458
American General Financial
  7.45%, 1/15/2005                             45,000               43,792
Amoco Corp.
  6.50%, 8/1/2007                              25,000               23,564
Anheuser-Busch Cos., Inc.
  7.00%, 12/1/2025                             30,000               25,933
Archer-Daniels-Midland Co.
  7.50%, 3/15/2027                             30,000               27,414
Autozone Inc.
  6.50%, 7/15/2008                             50,000               44,027
Baxter International, Inc.
  7.65%, 2/1/2027                              40,000               36,957
Becton, Dickinson & Co.
  8.70%, 1/15/2025                             20,000               19,786
The Boeing Co.
  8.75%, 8/15/2021                             40,200               42,416
CPC International, Inc.
  6.15%, 1/15/2006                              6,790                6,330
  7.25%, 12/15/2026                            10,185                9,343
CSX Corp.
  7.90%, 5/1/2017                              40,000               36,514
Champion International Corp.
  7.35%, 11/1/2025                             20,000               16,974
Continental Airlines, Inc.
  6.90%, 1/2/2018                              28,546               25,805
Continental Airlines, Inc.
 (Equipment Trust Certificates)
  6.648%, 3/15/2019                            32,016               28,461
Cox Communications, Inc.
  7.75%, 8/15/2006                             28,000               27,234
DaimlerChrysler North America
  Holding Corp. Global Notes
  7.40%, 1/20/2005                             48,000               47,120
Dean Foods Co.
  6.90%, 10/15/2017                            38,000               32,664
Diageo PLC
  6.125%, 8/15/2005                            50,530               47,019
Walt Disney Co.
  7.30%, 2/8/2005                              45,000               44,666
Federal Express Corp.
  6.72%, 1/15/2022                             48,850               44,941
Fluor Corp.
  6.95%, 3/1/2007                              42,000               39,230
Fortune Brands Inc.
  6.25%, 4/1/2008                              40,000               36,043
General Motors Corp.
  7.70%, 4/15/2016                             25,000               23,844
Georgia-Pacific Corp.
  9.625%, 3/15/2022                            22,000               22,315
Honeywell International Inc.
  7.50%, 3/1/2010                              50,000               49,343
International Business
  Machines Corp.
  8.375%, 11/1/2019                            25,000               26,668
Johnson Controls, Inc.
  7.125%, 7/15/2017                            36,300               32,539
Kimberly-Clark Corp.
  6.375%, 1/1/2028                             50,000               42,089

                                       16

<PAGE>
--------------------------------------------------------------------------------
                                                FACE                MARKET
                                               AMOUNT               VALUE*
                                                (000)                (000)
--------------------------------------------------------------------------------
Eli Lilly & Co.
    7.125%, 6/1/2025                      $    30,000          $    28,018
Lockheed Martin Corp.
    7.65%, 5/1/2016                            28,000               25,233
    7.95%, 12/1/2005                           17,500               17,183
Lucent Technologies Inc.
    7.25%, 7/15/2006                           35,000               34,656
Masco Corp.
    6.625%, 4/15/2018                          52,500               42,362
Massachusetts Institute
  of Technology
    7.125%, 11/2/2026                          22,000               20,380
Mattel Inc.
    6.125%, 7/15/2005                          35,000               29,872
McDonald's Corp.
    7.375%, 7/15/2033                          15,000               13,370
Merck & Co.
    6.40%, 3/1/2028                            50,000               43,582
Minnesota Mining &
  Manufacturing Corp.
    6.375%, 2/15/2028                          30,000               25,604
Mobil Corp.
    8.625%, 8/15/2021                          20,000               21,902
Motorola, Inc.
    7.50%, 5/15/2025                           51,500               48,388
News America Holdings Inc.
    8.00%, 10/17/2016                          29,876               26,694
    8.50%, 2/15/2005                           16,070               16,044
Norfolk Southern Corp.
    7.35%, 5/15/2007                           25,000               23,711
    8.375%, 5/15/2005                          25,000               25,137
PPG Industries, Inc.
    6.875%, 2/15/2012                          13,600               12,477
    9.00%, 5/1/2021                            19,750               21,429
Phillips Petroleum Co.
    9.375%, 2/15/2011                          20,000               21,077
Procter & Gamble Co. ESOP
    9.36%, 1/1/2021                            59,145               66,319
Raytheon Co.
    7.375%, 7/15/2025                          18,000               14,570
    8.20%, 3/1/2006                            20,675               20,509
Rockwell International Corp.
    7.875%, 2/15/2005                          17,000               17,088
Rohm & Haas Co.
(3) 9.80%, 4/15/2020                           15,000               16,876
Joseph Seagram & Sons, Inc.
    6.625%, 12/15/2005                         50,000               45,790
Southwest Airlines Co.
    7.54%, 6/29/2015                           30,772               29,884
Stanford Univ.
    6.875%, 2/1/2024                           24,045               21,525
    7.65%, 6/15/2026                           30,000               29,222
Target Corp.
    7.50%, 2/15/2005                           45,000               44,665
Tenneco Packaging
    8.375%, 4/15/2027                          35,000               29,396
The Timken Co.
    6.875%, 5/8/2028                           40,000               33,002
Tosco Corp.
    7.80%, 1/1/2027                            35,000               31,834
--------------------------------------------------------------------------------
                                                 FACE               MARKET
                                               AMOUNT               VALUE*
                                                (000)                (000)
--------------------------------------------------------------------------------
USA Waste Services Inc.
  7.00%, 7/15/2028                        $    46,500          $    33,855
Ultramar Diamond Shamrock
  7.20%, 10/15/2017                            40,000               34,556
United Technologies Corp.
  6.625%, 11/15/2004                           10,000                9,626
  8.75%, 3/1/2021                              22,000               23,616
Vastar Resources, Inc.
  6.50%, 4/1/2009                              49,095               45,361
Warner Lambert
  6.00%, 1/15/2008                             20,000               18,044
Wendy's International, Inc.
  6.35%, 12/15/2005                            25,500               23,773
Weyerhaeuser Co.
  6.95%, 8/1/2017                              20,000               17,024
                                                                ----------
                                                                 2,093,662
                                                                ----------
UTILITIES (3.9%)
AT&T Corp.
   7.75%, 3/1/2007                             40,000               39,578
Atlantic City Electric Co.
(2)7.00%, 9/1/2023                             18,000               15,512
BellSouth Telecommunications
   5.875%, 1/15/2009                           15,000               13,091
Carolina Power & Light Co.
   5.95%, 3/1/2009                             20,000               17,350
Central Illinois Public Service
   6.125%, 12/15/2028                          54,000               44,468
Chesapeake & Potomac
  Telephone Co. (MD)
   7.15%, 5/1/2023                             10,000               8,823
Chesapeake & Potomac
  Telephone Co. (VA)
   7.625%, 12/1/2012                           16,400               16,248
Cincinnati Bell, Inc.
   6.30%, 12/1/2028                            60,000               42,746
Consolidated Edison Co.
  of New York, Inc.
   6.45%, 12/1/2007                            20,000               18,078
   7.50%, 6/15/2023                            25,000               22,136
Duke Energy Corp.
   7.00%, 7/1/2033                             10,000                8,437
El Paso Natural Gas Co.
   7.50%, 11/15/2026                           47,030               41,857
GTE North, Inc.
   6.90%, 11/1/2008                            30,000               27,847
GTE Southwest, Inc.
   6.00%, 1/15/2006                            30,000               27,409
Illinois Bell Telephone Co.
   6.625%, 2/1/2025                            27,725               22,866
Indiana Michigan Power Co.
   6.875%, 7/1/2004                            45,000               42,706
NGC Corp.
   7.125%, 5/15/2018                           35,000               29,085
National Rural Utilities
   5.75%, 12/1/2008                            50,000               43,158
New Jersey Bell Telephone Co.
   8.00%, 6/1/2022                             34,019               32,876
New York Telephone Co.
   7.25%, 2/15/2024                            20,000               17,274
PacifiCorp
   6.625%, 6/1/2007                            20,500               18,765

                                       17

<PAGE>

--------------------------------------------------------------------------------
                                                 FACE               MARKET
                                               AMOUNT               VALUE*
WELLINGTON FUND                                 (000)                (000)
--------------------------------------------------------------------------------
Pan Energy Corp.
  7.00%, 10/15/2006                       $    25,000          $    23,695
Southwestern Bell Telephone Co.
  7.25%, 7/15/2025                             25,000               21,995
  7.60%, 4/26/2007                              7,000                6,803
Sprint Capital Corp.
  6.125%, 11/15/2008                           50,000               43,566
Tennessee Gas Pipeline Co.
  7.50%, 4/1/2017                              40,000               36,595
U S WEST Communications Group
  6.875%, 9/15/2033                            30,000               24,465
Washington Gas Light Co.
  6.15%, 1/26/2026                             43,500               40,113
Wisconsin Electric Power Co.
  6.50%, 6/1/2028                              20,000               16,281
Wisconsin Gas Co.
  6.60%, 9/15/2013                             13,100               11,477
Wisconsin Power & Light Co.
  7.625%, 3/1/2010                             20,000               19,182
Wisconsin Public Service
  6.08%, 12/1/2028                             45,000               37,094
WorldCom Inc.
  6.40%, 8/15/2005                             48,000               44,871
                                                                ----------
                                                                   876,447
                                                                ----------
--------------------------------------------------------------------------
TOTAL CORPORATE BONDS
(COST $5,175,800)                                                4,717,276
--------------------------------------------------------------------------
FOREIGN BONDS (U.S. DOLLAR-DENOMINATED)(3.3%)
--------------------------------------------------------------------------
Abbey National First Capital
  8.20%, 10/15/2004                            20,000               20,459
Abbey National PLC
  6.69%, 10/17/2005                            25,000               23,675
Amoco Canada Petroleum Co.
  7.95%, 10/1/2022                             20,000               20,236
BBV International Finance
  7.00%, 12/1/2025                             37,500               33,687
BHP Finance USA Ltd.
  7.25%, 3/1/2016                              35,000               30,403
Bank of Montreal
  7.80%, 4/1/2007                              15,000               14,926
Banque Paribas NY
  6.95%, 7/22/2013                             40,000               34,941
Banque Nationale de Paris-NY
  7.20%, 1/15/2007                             40,000               38,001
Bayerische Landesbank-NY
  6.375%, 10/15/2005                           25,000               23,985
The Development Bank of
  Singapore Ltd.
  7.875%, 8/10/2009                            31,620               30,388
Inter-American Dev. Bank
  8.875%, 6/1/2009                             50,000               54,568
KFW International Finance
  7.00%, 3/1/2013                              10,000                9,505
  7.20%, 3/15/2014                             25,000               24,410
Norsk Hydro AS
  9.00%, 4/15/2012                             20,000               20,961
Province of New Brunswick
  6.75%, 8/15/2013                             20,400               18,511
Province of Ontario
  7.00%, 8/4/2005                              40,000               39,300

--------------------------------------------------------------------------------
                                                 FACE               MARKET
                                               AMOUNT               VALUE*
                                                (000)                (000)
--------------------------------------------------------------------------------
Royal Bank of Scotland
  6.375%, 2/1/2011                        $    40,775          $    36,207
Scotland International Finance
  8.85%, 11/1/2006                             28,000               29,099
SmithKline Beecham
  7.375%, 4/15/2005                            15,000               15,015
Societe Generale-NY
  7.40%, 6/1/2006                              40,000               38,596
Southern Investments UK PLC
  6.80%, 12/1/2006                             35,000               32,305
Sun Canada Financial Co.
  6.625%, 12/15/2007                           40,000               37,902
Talisman Energy, Inc.
  7.125%, 6/1/2007                             10,000                9,365
Toronto-Dominion Bank
  6.45%, 1/15/2009                             14,000               12,553
  6.50%, 8/15/2008                             10,000                9,031
Westdeutsche Landesbank-NY
  6.75%, 6/15/2005                             50,000               47,407
Zeneca Wilmington Inc.
  7.00%, 11/15/2023                            50,000               45,594
--------------------------------------------------------------------------
TOTAL FOREIGN BONDS
(COST $780,356)                                                    751,030
--------------------------------------------------------------------------
U.S. GOVERNMENT AND AGENCY OBLIGATIONS (5.3%)
--------------------------------------------------------------------------
U.S. GOVERNMENT SECURITIES (3.8%)
Aid-Israel State
  5.89%, 8/15/2005                             23,000               22,010
U.S. Treasury Notes
  5.50%, 5/31/2003                            200,000              193,606
  5.625%, 12/31/2002                          300,000              292,182
  6.00%, 8/15/2004                            350,000              342,335
                                                                ----------
                                                                   850,133
                                                                ----------
AGENCY BONDS & NOTES (0.6%)
Federal Home Loan Bank
  5.24%, 12/18/2008                            45,000               38,407
Federal National Mortgage Assn.
  6.50%, 8/15/2004                            100,000               96,723
                                                                ----------
                                                                   135,130
                                                                ----------
MORTGAGE-BACKED SECURITIES (0.9%)
Federal National Mortgage Assn.
(3)5.735%, 1/1/2009                            39,384               34,787
(3)6.032%, 1/1/2009                            60,117               56,299
(3)6.504%, 7/1/2009                            60,297               55,746
(3)6.79%, 7/1/2009                             62,978               59,376
                                                                ----------
                                                                   206,208
                                                                ----------
--------------------------------------------------------------------------
TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS
(COST $1,216,985)                                                1,191,471
--------------------------------------------------------------------------

                                       18

<PAGE>
--------------------------------------------------------------------------
                                                 FACE               MARKET
                                               AMOUNT               VALUE*
                                                (000)                (000)
--------------------------------------------------------------------------
COMMERCIAL MORTGAGE-BACKED SECURITIES (1.0%)
--------------------------------------------------------------------------
Asset Securitization Corp.
(3)6.75%, 2/14/2041                       $    35,000          $    32,528
(3)7.49%, 4/14/2029                            34,000               33,240
Credit Suisse First Boston
  Mortgage Securities Corp.
   7.24%, 6/20/2029                            35,000               33,627
DLJ Mortgage Acceptance Corp.
(3)6.82%, 10/15/2030                           25,000               23,484
(3)7.60%, 5/15/2030                            36,000               35,145
Morgan Stanley Capital I Inc.
(3)7.22%, 7/15/2029                            35,000               33,890
Nomura Asset Securities Corp.
(3)6.69%, 3/15/2030                            34,000               30,722
--------------------------------------------------------------------------
TOTAL COMMERCIAL MORTGAGE-BACKED SECURITIES
(COST $238,664)                                                    222,636
--------------------------------------------------------------------------
TAXABLE MUNICIPAL BONDS (0.3%)
--------------------------------------------------------------------------
Chelan County Washington
  Public Utility District
  7.07%, 6/1/2007                              10,000                9,695
  7.10%, 6/1/2008                              12,000               11,583
Oakland CA Pension Obligation
  6.98%, 12/15/2009                            20,000               18,923
Southern California Public
  Power Auth.
  6.93%, 5/15/2017                             30,000               26,591
--------------------------------------------------------------------------
TOTAL TAXABLE MUNICIPAL BONDS
(COST $72,000)                                                      66,792
--------------------------------------------------------------------------
TEMPORARY CASH INVESTMENTS (2.9%)
--------------------------------------------------------------------------
REPURCHASE AGREEMENTS
Collateralized by U.S. Government
  Obligations in a Pooled
  Cash Account
  6.38%, 6/1/2000                             265,275              265,275
  6.43%, 6/1/2000--Note G                     384,509              384,509
--------------------------------------------------------------------------
TOTAL TEMPORARY CASH INVESTMENTS
(COST $649,784)                                                    649,784
--------------------------------------------------------------------------
TOTAL INVESTMENTS (101.4%)
(COST $18,913,478)                                              22,946,389
--------------------------------------------------------------------------


--------------------------------------------------------------------------
                                                                    MARKET
                                                                    VALUE*
                                                                     (000)
--------------------------------------------------------------------------
OTHER ASSETS AND LIABILITIES (-1.4%)
--------------------------------------------------------------------------
Other Assets--Note C                                          $   289,521
Liabilities--Note G                                              (606,682)
                                                                ----------
                                                                 (317,161)
--------------------------------------------------------------------------
NET ASSETS (100%)
--------------------------------------------------------------------------
Applicable to 811,488,638 outstanding $.001
  par value shares of beneficial interest
  (unlimited authorization)                                   $22,629,228
==========================================================================

NET ASSET  VALUE  PER  SHARE                                       $27.89
==========================================================================
 * See  Note A in  Notes  to  Financial Statements.
 o Non-income-producing security.
 (1)Considered  an  affiliated  company as the fund owns
    more than 5% of the  outstanding  voting  securities  of the
    company.  The total market  value  of  investments  in
    affiliated   companies  was   $438,558,000.
 (2)Scheduled  principal and interest  payments are guaran-
    teed by MBIA  (Municipal  Bond Insurance  Association).
 (3)The  average  maturity is  shorter  than  the  final
    maturity  shown  due  to  scheduled  interim  principal payments.
  ADR--American Depositary Receipt.
  REIT--Real Estate Investment Trust.

--------------------------------------------------------------------------
AT MAY 31, 2000, NET ASSETS CONSISTED OF:
--------------------------------------------------------------------------
Paid in Capital              $17,882,164       $22.04
Undistributed Net
 Investment Income               145,427          .18
Accumulated Net
 Realized Gains                  568,726          .70
Unrealized Appreciation--
 Note F                        4,032,911         4.97
--------------------------------------------------------------------------
NET ASSETS                   $22,629,228       $27.89
==========================================================================

                                       19

<PAGE>


STATEMENT OF OPERATIONS

This Statement  shows dividend and interest 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  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) on investments during the period.

--------------------------------------------------------------------------------
                                                                 WELLINGTON FUND
                                                   SIX MONTHS ENDED MAY 31, 2000
                                                                           (000)
--------------------------------------------------------------------------------
INVESTMENT INCOME
INCOME
  Dividends*                                                           $440,780
  Interest                                                               41,623
  Security Lending                                                        2,210
                                                                       ---------
    Total Income                                                        484,613
                                                                       ---------
EXPENSES
  Investment Advisory Fees--Note B
    Basic Fee                                                             4,373
    Performance Adjustment                                               (1,340)
  The Vanguard Group--Note C
    Management and Administrative                                        30,395
    Marketing and Distribution                                            1,764
  Custodian Fees                                                             89
  Auditing Fees                                                              11
  Shareholders' Reports                                                     469
  Trustees' Fees and Expenses                                                16
                                                                       ---------
    Total Expenses                                                       35,777
    Expenses Paid Indirectly--Note D                                       (359)
                                                                       ---------
    Net Expenses                                                         35,418
--------------------------------------------------------------------------------
NET INVESTMENT INCOME                                                   449,195
--------------------------------------------------------------------------------
REALIZED NET GAIN ON INVESTMENT SECURITIES SOLD                         567,448
--------------------------------------------------------------------------------
CHANGE  IN  UNREALIZED  APPRECIATION
  (DEPRECIATION)  OF  INVESTMENT  SECURITIES                           (744,039)
--------------------------------------------------------------------------------
NET  INCREASE  IN  NET  ASSETS  RESULTING  FROM  OPERATIONS            $272,604
================================================================================
*Dividend income from affiliated companies was $6,258,000.

                                       20

<PAGE>

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.

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------
                                                                                    WELLINGTON  FUND
                                                                          ---------------------------------
                                                                             SIX MONTHS                YEAR
                                                                                  ENDED               ENDED
                                                                          MAY  31, 2000       NOV. 30, 1999
                                                                                  (000)               (000)
-----------------------------------------------------------------------------------------------------------
<S>                                                                               <C>                 <C>

INCREASE (DECREASE) IN NET ASSETS
OPERATIONS
   Net Investment Income                                                   $   449,195         $   977,857
   Realized Net Gain                                                           567,448           1,305,304
   Change in Unrealized Appreciation (Depreciation)                           (744,039)         (1,372,702)
                                                                           --------------------------------
      Net Increase in Net Assets Resulting from Operations                     272,604             910,459
                                                                           --------------------------------
DISTRIBUTIONS
    Net Investment Income                                                     (547,384)         (1,029,186)
    Realized Capital Gain                                                   (1,299,612)         (1,954,145)
                                                                           --------------------------------
      Total Distributions                                                   (1,846,996)         (2,983,331)
                                                                           --------------------------------
CAPITAL SHARE TRANSACTIONS1
     Issued                                                                  1,298,132           4,178,637
     Issued in Lieu of Cash Distributions                                    1,759,446           2,839,521
     Redeemed                                                               (4,700,271)         (4,928,194)
                                                                           --------------------------------
        Net Increase(Decrease)from Capital Share Transactions               (1,642,693)          2,089,964
-----------------------------------------------------------------------------------------------------------
     Total Increase (Decrease)                                              (3,217,085)             17,092
-----------------------------------------------------------------------------------------------------------
NET ASSETS
    Beginning of Period                                                     25,846,313          25,829,221
                                                                           --------------------------------
    End of Period                                                          $22,629,228         $25,846,313
===========================================================================================================

1Shares Issued (Redeemed)
    Issued                                                                      47,498             139,191
    Issued in Lieu of Cash Distributions                                        64,018              97,975
    Redeemed                                                                  (172,653)           (164,432)
                                                                           --------------------------------
       Net Increase (Decrease) in Shares Outstanding                           (61,137)             72,734
===========================================================================================================
</TABLE>

                                       21

<PAGE>

FINANCIAL HIGHLIGHTS

This table  summarizes  the  fund's  investment  results  and  distributions  to
shareholders on a per-share  basis. It also presents the fund's 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.

<TABLE>
<CAPTION>
---------------------------------------------------------------------------------------------------------------
                                                                            WELLINGTON FUND
                                                                        YEAR ENDED NOVEMBER 30,
FOR A SHARE OUTSTANDING               SIX MONTHS ENDED    -----------------------------------------------------
THROUGHOUT EACH PERIOD                 MAY 31, 2000            1999        1998       1997      1996      1995
---------------------------------------------------------------------------------------------------------------
<S>                                              <C>          <C>         <C>        <C>       <C>       <C>
NET ASSET VALUE, BEGINNING OF PERIOD            $29.62       $32.29      $31.05     $28.34    $24.57    $19.33
---------------------------------------------------------------------------------------------------------------
INVESTMENT OPERATIONS
  Net Investment Income                           0.54         1.13        1.13       1.11      1.02       .96
  Net Realized and Unrealized Gain (Loss)
      on Investments                             (0.13)       (0.14)       2.86       3.77      4.00      5.19
                                              -----------------------------------------------------------------
      Total from Investment Operations            0.41         0.99        3.99       4.88      5.02      6.15
                                              -----------------------------------------------------------------
DISTRIBUTIONS
  Dividends from Net Investment Income           (0.64)       (1.22)      (1.18)     (1.06)     (.97)     (.88)
  Distributions from Realized Capital Gains      (1.50)       (2.44)      (1.57)     (1.11)     (.28)     (.03)
                                              -----------------------------------------------------------------
      Total Distributions                        (2.14)       (3.66)      (2.75)     (2.17)    (1.25)     (.91)
                                              -----------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                  $27.89       $29.62      $32.29     $31.05    $28.34    $24.57
                                              =================================================================
TOTAL RETURN                                     1.55%        3.58%      13.84%     18.60%    21.26%    32.70%
                                              =================================================================

RATIOS/SUPPLEMENTAL DATA
  Net Assets, End of Period (Millions)         $22,629      $25,846     $25,829    $21,340   $16,505    $12,333
  Ratio of Total Expenses to
       Average Net Assets                       0.30%*        0.30%       0.31%      0.29%     0.31%      0.33%
  Ratio of Net Investment Income to
       Average Net Assets                       3.80%*        3.74%       3.68%      3.97%     4.08%      4.37%
  Portfolio Turnover Rate                         26%*          22%         29%        27%       30%        24%
                                              =================================================================
*Annualized.
</TABLE>

                                       22

<PAGE>

NOTES TO FINANCIAL STATEMENTS

Vanguard  Wellington Fund is registered under the Investment Company Act of 1940
as a diversified open-end investment company, or mutual fund.

A. The following  significant  accounting policies conform to generally accepted
accounting  principles  for mutual  funds.  The fund  consistently  follows such
policies in preparing its financial statements.

     1. SECURITY  VALUATION:  Equity  securities are valued at the latest quoted
sales  prices  as of the  close  of  trading  on the  New  York  Stock  Exchange
(generally  4:00 p.m.  Eastern time) on the valuation  date; such securities not
traded on the valuation date are valued at the mean of the latest quoted bid and
asked  prices.  Prices are taken from the primary  market in which each security
trades.  Bonds are valued using the latest bid prices and 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.
Temporary cash investments are valued at cost, which approximates  market value.
Securities for which market  quotations are not readily  available are valued by
methods deemed by the board of trustees to represent fair value.

     2.  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.

     3.  REPURCHASE  AGREEMENTS:  The fund,  along  with  other  members  of The
Vanguard  Group,  transfers  uninvested  cash balances to 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.

     4.  DISTRIBUTIONS:  Distributions  to  shareholders  are  recorded  on  the
ex-dividend  date.  Distributions  are  determined on a tax basis and may differ
from net investment  income and realized  capital gains for financial  reporting
purposes.

     5. OTHER:  Dividend  income is recorded on the ex-dividend  date.  Security
transactions  are accounted for on the date 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. Wellington  Management Company, llp, 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 performance
for the preceding  three years relative to a combined  index  comprising the S&P
500 Index and the Lehman  Brothers Long  Corporate A or Better Bond Index (AA or
Better Index for periods  prior to March 1, 2000).  For the six months ended May
31, 2000, the advisory fee  represented an effective  annual basic rate of 0.04%
of the fund's  average net assets before a decrease of $1,340,000  (0.01%) 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 May 31, 2000,  the fund had  contributed  capital of $4,409,000 to
Vanguard (included in Other Assets), representing 0.02% of the fund's net assets
and 4.4% of Vanguard's capitalization. The fund's trustees and officers are also
directors and officers of Vanguard.


                                       23

<PAGE>

D. The fund has asked its investment  adviser to direct certain security trades,
subject to obtaining the best price and execution, to brokers who have agreed to
rebate to the fund part of the  commissions  generated.  Such  rebates  are used
solely to reduce the fund's management and administrative  expenses. For the six
months ended May 31, 2000,  these  arrangements  reduced the fund's  expenses by
$359,000.

E. During the six months ended May 31, 2000, the fund  purchased  $1,619,950,000
of investment securities and sold $4,224,275,000 of investment securities, other
than U.S.  government  securities and temporary cash investments.  Purchases and
sales  of U.S.  government  securities  were  $880,113,000  and  $1,208,444,000,
respectively.

F. At May 31, 2000, net  unrealized  appreciation  of investment  securities for
financial   reporting  and  federal  income  tax  purposes  was  $4,032,911,000,
consisting of unrealized gains of $5,438,587,000 on securities that had risen in
value since their purchase and $1,405,676,000 in unrealized losses on securities
that had fallen in value since their purchase.

G. The market value of securities on loan to broker/dealers at May 31, 2000, was
$521,728,000, for which the fund had received as collateral cash of $384,509,000
and  U.S.  Treasury  securities  with  a  market  value  of  $146,341,000.  Cash
collateral  received is invested in repurchase  agreements.  Security  loans are
required to be secured at all times by  collateral  at least equal to the market
value of securities  loaned;  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.

                                       24

<PAGE>

--------------------------------------------------------------------------------
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 part owner of
the fund.  Your  fund  trustees  also  serve on the  board of  directors  of The
Vanguard  Group,  which is owned by the  funds  and  exists  solely  to  provide
services to them on an at-cost basis.

     Six of Vanguard's  seven 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.  They 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 the funds.

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

     The list below provides a brief description of each trustee's  professional
affiliations.  Noted in  parentheses is the year in which the trustee joined the
Vanguard board.


TRUSTEES

JOHN J. BRENNAN  (1987)  Chairman of the Board,  Chief Executive  Officer,  and
Director/Trustee  of The  Vanguard  Group,  Inc.,  and  each  of the  investment
companies in The Vanguard Group.

JOANN HEFFERNAN HEISEN  (1998) Vice President, Chief Information Officer, and a
member of the  Executive  Committee of Johnson & Johnson;  Director of Johnson &
JohnsonoMerck Consumer Pharmaceuticals Co., The Medical Center at Princeton, and
Women's Research and Education Institute.

BRUCE K.  MACLAURY  (1990)  President  Emeritus of The  Brookings  Institution;
Director of  American  Express  Bank Ltd.,  The St. Paul  Companies,  Inc.,  and
National Steel Corp.

BURTON G. MALKIEL  (1977)  Chemical  Bank  Chairman's  Professor of  Economics,
Princeton  University;  Director of Prudential  Insurance Co. of America,  Banco
Bilbao Gestinova,  Baker Fentress & Co., The Jeffrey Co., and Select Sector SPDR
Trust.

ALFRED M. RANKIN, JR. (1993) Chairman,  President,  Chief Executive Officer, and
Director of NACCO Industries, Inc.; Director of The BFGoodrich Co.

JAMES O. WELCH,  JR. (1971) Retired  Chairman of Nabisco Brands,  Inc.;  retired
Vice Chairman and Director of RJR Nabisco;  Director of TECO Energy,  Inc.,  and
Kmart Corp.

J.  LAWRENCE  WILSON  (1985)  Retired  Chairman of Rohm & Haas Co.;  Director of
AmeriSource Health Corporation,  Cummins Engine Co., and The Mead Corp.; Trustee
of Vanderbilt University.
--------------------------------------------------------------------------------

OTHER FUND OFFICERS

RAYMOND J.  KLAPINSKY    Secretary;  Managing  Director  and  Secretary  of The
Vanguard  Group,  Inc.;  Secretary  of each of the  investment  companies in The
Vanguard Group.

THOMAS J. HIGGINS  Treasurer;  Principal of The Vanguard Group, Inc.; Treasurer
of each of the investment companies in The Vanguard Group.


VANGUARD MANAGING DIRECTORS

R. GREGORY BARTON  Legal Department.

ROBERT A. DISTEFANO  Information Technology.

JAMES H. GATELY  Individual Investor Group.

KATHLEEN C. GUBANICH  Human Resources.

IAN A. MACKINNON  Fixed Income Group.

F. WILLIAM MCNABB, III  Institutional Investor Group.

MICHAEL S. MILLER  Planning and Development.

RALPH K. PACKARD  Chief Financial Officer.

GEORGE U. SAUTER  Quantitative Equity Group.


<PAGE>


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Valley Forge, Pennsylvania 19482-2600


ABOUT OUR COVER

Our cover art, depicting HMS Vanguard at sea, is a
reproduction  of Leading the Way, a 1984 work created
and  copyrighted  by noted naval artist Tom Freeman,
of Forest Hill, Maryland.

WORLD WIDE WEB
www.vanguard.com

FUND INFORMATION
1-800-662-7447

INDIVIDUAL ACCOUNT SERVICES
1-800-662-2739

INSTITUTIONAL INVESTOR SERVICES
1-800-523-1036

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 fund prospectus.




Q212 072000

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All rights reserved.
Vanguard Marketing
Corporation, Distributor.






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