VANGUARD TRUSTEES EQUITY FUND
485BPOS, 1994-04-18
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                       SECURITIES AND EXCHANGE COMMISSION
 
                             WASHINGTON, D.C. 20549
 
                                   FORM N-1A
 
                   REGISTRATION STATEMENT (NO. 2-65955) UNDER
                           THE SECURITIES ACT OF 1933
 
                          Pre-Effective Amendment No.
                        Post-Effective Amendment No. 17
                                      and
              REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                  ACT OF 1940
                                Amendment No. 17
 
                         VANGUARD/TRUSTEES' EQUITY FUND
                      (FORMERLY TRUSTEES' COMMINGLED FUND)
               (Exact Name of Registrant as Specified in Charter)
 
                                 P.O. Box 2600,
                             Valley Forge, PA 19482
 
                    (Address of Principal Executive Office)
 
                  Registrant's Telephone Number (610) 669-1000
 
                         RAYMOND J. KLAPINSKY, ESQUIRE
                                  P.O. BOX 876
                             VALLEY FORGE, PA 19482
 
It is proposed that this filing become effective:
 
It  is proposed that the amendment become  effective on April 22, 1994, pursuant
to paragraph (b) of Rule 485 of the Securities Act of 1933.
 
Approximate Date of Proposed Public Offering: As soon as practicable after  this
Registration Statement becomes effective.
 
Registrant  elects  to  register  an indefinite  number  of  shares  pursuant to
Regulation 24f-2 under the Investment Company Act of 1940. Registrant filed  its
Rule 24f-2 Notice for the year ended December 31, 1993 on February 24, 1994.
 
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                         VANGUARD TRUSTEES' EQUITY FUND
                             CROSS REFERENCE SHEET
 
<TABLE>
<CAPTION>
  FORM N-1A
 ITEM NUMBER                                                        LOCATION IN PROSPECTUS
<C>            <S>                                                  <C>
   Item 1.     Cover Page.........................................  Cover Page
   Item 2.     Synopsis...........................................  Not Applicable
   Item 3.     Condensed Financial Information....................  Financial Highlights
   Item 4.     General Description of Registrant..................  Investment Objective; Investment Limitations;
                                                                    Investment Policies; General Information
   Item 5.     Management of the Fund.............................  Management of the Fund; Investment Advisers
   Item 6.     Capital Stock and Other Securities.................  Opening an Account and Purchasing Shares; Selling
                                                                    Your Shares; The Share Price of Each Portfolio;
                                                                    Dividends, Capital Gains and Taxes; General
                                                                    Information
   Item 7.     Purchase of Securities Being Offered...............  Cover Page; Opening an Account and Purchasing
                                                                    Shares
   Item 8.     Redemption or Repurchase...........................  Selling Your Shares
   Item 9.     Pending Legal Proceedings..........................  Not Applicable
 
<CAPTION>
  FORM N-1A                                                         LOCATION IN STATEMENT
 ITEM NUMBER                                                        OF ADDITIONAL INFORMATION
<C>            <S>                                                  <C>
  Item 10.     Cover Page.........................................  Cover Page
  Item 11.     Table of Contents..................................  Cover Page
  Item 12.     General Information and History....................  Investment Objectives and Policies; General
                                                                    Information
  Item 13.     Investment Objective and Policies..................  Investment Objectives and Policies; Investment
                                                                    Limitations
  Item 14.     Management of the Fund.............................  Management of the Fund; Investment Management
  Item 15.     Control Persons and Principal Holders of
               Securities.........................................  Management of the Fund; General Information
  Item 16.     Investment Advisory and Other Services.............  Management of the Fund; Investment Management
  Item 17.     Brokerage Allocation...............................  Not Applicable
  Item 18.     Capital Stock and Other Securities.................  General Information; Financial Statements
  Item 19.     Purchase, Redemption and Pricing of Securities
               Being Offered......................................  Purchase of Shares; Redemption of Shares;
  Item 20.     Tax Status.........................................  Appendix
  Item 21.     Underwriters.......................................  Not Applicable
  Item 22.     Calculations of Yield Quotations of Money Market
               Fund...............................................  Not Applicable
  Item 23.     Financial Statements...............................  Financial Statements
</TABLE>
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OPQRS                                             A MEMBER OF THE VANGUARD GROUP
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<TABLE>
<S>                 <C>
PROSPECTUS--APRIL 22, 1994
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NEW ACCOUNT INFORMATION: INVESTOR INFORMATION DEPARTMENT--1-800-662-7447 (SHIP)
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SHAREHOLDER ACCOUNT SERVICES: CLIENT SERVICES DEPARTMENT--1-800-662-2739 (CREW)
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INVESTMENT          Vanguard/Trustees'  Equity Fund (the "Fund"), formerly known
OBJECTIVE AND       as "Trustees' Commingled Fund,"  is an open-end  diversified
POLICIES            investment  company that seeks  to realize maximum long-term
                    total return  consistent  with  reasonable  risk.  The  Fund
                    consists  of  two  Portfolios:  the  U.S.  Portfolio,  which
                    invests in  equity  securities  of companies  based  in  the
                    United   States,  and  the  International  Portfolio,  which
                    invests in equity securities of companies based outside  the
                    United  States. There is no  assurance that either Portfolio
                    will achieve its stated objective.
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OPENING AN ACCOUNT  To open a regular (non-retirement) account, please  complete
                    and  return  the  Account  Registration  Form.  If  you need
                    assistance in completing this Form, please call our Investor
                    Information Department.  To  open an  Individual  Retirement
                    Account (IRA), please use a Vanguard IRA Adoption Agreement.
                    To  obtain a copy of  this form, call 1-800-662-7447, Monday
                    through Friday from  8:00 a.m to  8:00 p.m. (Eastern  time).
                    The   minimum  initial  investment   is  $10,000  ($500  for
                    Individual Retirement Accounts  and Uniform  Gifts/Transfers
                    to  Minors Act accounts).  The Fund is  offered on a no-load
                    basis (i.e., there are no sales commissions or 12b-1  fees).
                    However,  the Fund incurs  expenses for investment advisory,
                    management, administrative and distribution services.
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ABOUT THIS          This Prospectus  is  designed  to set  forth  concisely  the
PROSPECTUS          information  you  should  know  about  the  Fund  before you
                    invest. It  should  be  retained  for  future  reference.  A
                    "Statement  of Additional Information" containing additional
                    information  about  the  Fund   has  been  filed  with   the
                    Securities  and Exchange Commission. This Statement is dated
                    April 22, 1994 and has  been incorporated by reference  into
                    this  Prospectus. A copy  may be obtained  without charge by
                    writing to the Fund or  by calling the Investor  Information
                    Department.
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TABLE OF CONTENTS
</TABLE>
<TABLE>
<CAPTION>
                                      PAGE
<S>                                 <C>
Fund Expenses.....................         2
Financial Highlights..............         3
Yield and Total Return............         5
         FUND INFORMATION
Investment Objective..............         5
Investment Policies...............         5
Investment Risks..................         6
Who Should Invest.................         8
Implementation of Policies........         9
Investment Limitations............        10
 
<CAPTION>
                                      PAGE
<S>                                 <C>
Management of the Fund............        11
Investment Advisers...............        12
Performance Record................        14
Dividends, Capital Gains and
  Taxes...........................        15
The Share Price of Each
  Portfolio.......................        16
General Information...............        17
        SHAREHOLDER GUIDE
Opening an Account and
  Purchasing Shares...............        18
<CAPTION>
                                      PAGE
<S>                                 <C>
Choosing a Distribution Option....        20
Tax Caution.......................        20
When Your Account Will Be
  Credited........................        21
Selling Your Shares...............        21
Exchanging Your Shares............        23
Important Information About
  Telephone Transactions..........        24
Transferring Registration.........        25
Other Vanguard Services...........        25
</TABLE>
 
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THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE  SECURITIES COMMISSION, NOR HAS THE  SECURITIES
AND  EXCHANGE COMMISSION  OR ANY  STATE COMMISSION  PASSED UPON  THE ACCURACY OR
ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO THE  CONTRARY IS A  CRIMINAL
OFFENSE.
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<TABLE>
<S>                 <C>
FUND EXPENSES       The  following table illustrates all  expenses and fees that
                    you would incur as a  shareholder of the Fund. The  expenses
                    and  fees set  forth in  the table  are for  the 1993 fiscal
                    year.
</TABLE>
<TABLE>
<CAPTION>
SHAREHOLDER TRANSACTION
 EXPENSES
<S>                              <C>                <C>
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Sales Load Imposed on
 Purchases....................                            None
Sales Load Imposed on
 Reinvested Dividends.........                            None
Redemption Fees...............                            None
Exchange Fees.................                            None
 
<CAPTION>
                                      U.S.           INTERNATIONAL
ANNUAL FUND OPERATING EXPENSES      PORTFOLIO          PORTFOLIO
<S>                              <C>                <C>
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Management & Administrative
 Expenses.....................         0.23%               0.13%
Investment Advisory Fees......         0.59%               0.16%
12b-1 Fees....................        None                None
Other Expenses
  Distribution Costs..........         0.02%               0.02%
  Miscellaneous Expenses......         0.06%               0.09%
                                   -----               -----
Total Other Expenses..........         0.08%               0.11%
                                   -----               -----
                                       0.90%               0.40%
      TOTAL OPERATING
       EXPENSES...............
                                   -----               -----
                                   -----               -----
                    The purpose of this table is to assist you in  understanding
                    the  various costs and expenses that you would bear directly
                    or indirectly as an investor in the Fund.
                    The following  example  illustrates the  expenses  that  you
                    would  incur on  a $1,000  investment over  various periods,
                    assuming (1) a 5% annual  rate of return and (2)  redemption
                    at  the end of each period. As noted in the table above, the
                    Fund charges no redemption fees of any kind.
</TABLE>
 
<TABLE>
<CAPTION>
                                       1 YEAR       3 YEARS      5 YEARS     10 YEARS
                                     -----------  -----------  -----------  -----------
<S>                                  <C>          <C>          <C>          <C>
U.S. Portfolio.....................   $       9    $      29    $      50    $     111
International Portfolio............   $       4    $      13    $      22    $      51
</TABLE>
 
                      THIS EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION  OF
                      PAST  OR FUTURE  EXPENSES OR  PERFORMANCE. ACTUAL EXPENSES
                      MAY BE HIGHER OR LOWER THAN THOSE SHOWN.
 
                      ----------------------------------------------------------
 
2
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<TABLE>
<S>                 <C>
FINANCIAL           The following financial highlights  for a share  outstanding
HIGHLIGHTS          throughout  each period, insofar  as they relate  to each of
                    the five years in the  period ended December 31, 1993,  have
                    been  audited by Price  Waterhouse, independent accountants,
                    whose  report  thereon  was  unqualified.  This  information
                    should  be  read in  conjunction  with the  Fund's financial
                    statements and  notes  thereto  which  are  incorporated  by
                    reference  in the Statement of Additional Information and in
                    this Prospectus, and which appear, along with the report  of
                    Price  Waterhouse,  in  the  Fund's  1993  Annual  Report to
                    Shareholders.  For  a  complete  discussion  of  the  Fund's
                    performance,  please see  the Fund's  1993 Annual  Report to
                    Shareholders which may be obtained without charge by writing
                    to  the  Fund  or   by  calling  our  Investor   Information
                    Department at 1-800-662-1447.
</TABLE>
 
<TABLE>
<CAPTION>
                                                                               U.S. PORTFOLIO
                                         ------------------------------------------------------------------------------------------
                                         ------------------------------------------------------------------------------------------
                                                                          YEAR ENDED DECEMBER 31,
                                         ------------------------------------------------------------------------------------------
                                          1993     1992     1991      1990      1989     1988     1987     1986     1985     1984
<S>                                      <C>      <C>      <C>      <C>        <C>      <C>      <C>      <C>      <C>      <C>
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NET ASSET VALUE, BEGINNING OF YEAR...... $28.43   $28.20   $22.90   $26.15     $26.35   $22.77   $28.69   $31.15   $30.56   $35.72
                                         -------  -------  -------  --------   -------  -------  -------  -------  -------  -------
INVESTMENT OPERATIONS
  Net Investment Income.................    .43      .68      .71     1.02        .87     1.02      .92     1.16     1.45     1.57
  Net Realized and Unrealized Gain
   (Loss) on Investments................   4.38     1.08     5.30    (3.19)      3.62     4.53     (.24)    3.69     4.69    (2.65)
                                         -------  -------  -------  --------   -------  -------  -------  -------  -------  -------
    TOTAL FROM INVESTMENT OPERATIONS....   4.81     1.76     6.01    (2.17)      4.49     5.55      .68     4.85     6.14    (1.08)
DISTRIBUTIONS
  Dividends from Net Investment
   Income...............................   (.43)    (.67)    (.71)   (1.08)      (.88)    (.97)    (.72)   (1.16)   (1.45)   (1.57)
  Distributions from Realized Capital
   Gains................................  (2.16)    (.86)      --       --      (3.81)   (1.00)   (5.88)   (6.15)   (4.10)   (2.51)
                                         -------  -------  -------  --------   -------  -------  -------  -------  -------  -------
    TOTAL DISTRIBUTIONS.................  (2.59)   (1.53)    (.71)   (1.08)     (4.69)   (1.97)   (6.60)   (7.31)   (5.55)   (4.08)
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NET ASSET VALUE, END OF YEAR............ $30.65   $28.43   $28.20   $22.90     $26.15   $26.35   $22.77   $28.69   $31.15   $30.56
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TOTAL RETURN............................  17.24%    6.45%   26.57%   (8.33)%    17.23%   24.64%    1.68%   15.26%   20.53%   (2.89)%
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RATIOS/SUPPLEMENTAL DATA
Net Assets, End of Year (Millions)......   $119      $68     $115     $100       $121     $115     $122     $163     $202     $272
Ratio of Expenses to Average Net
 Assets.................................    .90%     .65%     .44%     .52%       .51%     .58%     .52%     .52%     .48%     .53%
Ratio of Net Investment Income to
 Average Net Assets.....................   1.43%    2.33%    2.67%    4.18%      2.90%    3.86%    2.77%    3.46%    4.42%    4.74%
Portfolio Turnover Rate.................    139%     209%      84%      81%        72%      90%      44%      19%      23%      33%
</TABLE>
 
                                                                               3
<PAGE>
<TABLE>
<CAPTION>
                                                                       INTERNATIONAL PORTFOLIO
                                    ---------------------------------------------------------------------------------------------
                                    ---------------------------------------------------------------------------------------------
                                                                       YEAR ENDED DECEMBER 31,
                                    ---------------------------------------------------------------------------------------------
                                     1993      1992      1991      1990      1989     1988     1987      1986     1985     1984
<S>                                 <C>      <C>        <C>      <C>        <C>      <C>      <C>      <C>       <C>      <C>
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NET ASSET VALUE, BEGINNING OF
 YEAR.............................. $24.44   $27.78     $26.58   $32.44     $28.27   $28.66   $38.68   $ 30.91   $24.59   $25.98
                                    -------  --------   -------  --------   -------  -------  -------  --------  -------  -------
INVESTMENT OPERATIONS
  Expenses.........................
  Net Investment Income............    .50      .66        .78     1.02        .82      .77     1.14      1.03      .93     1.02
  Net Realized and Unrealized Gain
   (Loss) on Investments...........   6.91    (3.05)      1.80    (4.92)      6.22     4.41     7.91     14.32     8.86    (1.21)
                                    -------  --------   -------  --------   -------  -------  -------  --------  -------  -------
    TOTAL FROM INVESTMENT
     OPERATIONS....................   7.41    (2.39)      2.58    (3.90)      7.04     5.18     9.05     15.35     9.79     (.19)
DISTRIBUTIONS
  Dividends from Net Investment
   Income..........................   (.81)    (.67)      (.77)    (.95)      (.79)    (.99)    (.75)    (1.03)    (.93)   (1.09)
  Distributions from Realized
   Capital Gains...................     --     (.28)      (.61)   (1.01)     (2.08)   (4.58)  (18.32)    (6.55)   (2.54)    (.11)
                                    -------  --------   -------  --------   -------  -------  -------  --------  -------  -------
    TOTAL DISTRIBUTIONS............   (.81)    (.95)     (1.38)   (1.96)     (2.87)   (5.57)  (19.07)    (7.58)   (3.47)   (1.20)
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NET ASSET VALUE, END OF YEAR....... $31.04   $24.44     $27.78   $26.58     $32.44   $28.27   $28.66    $38.68   $30.91   $24.59
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TOTAL RETURN.......................  30.49%   (8.72)%     9.96%  (12.26)%    25.97%   18.78%   23.88%    50.71%   40.33%   (0.76)%
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RATIOS/SUPPLEMENTAL DATA
Net Assets, End of Year
 (Millions)........................   $982     $678       $878     $796       $646     $467     $657      $719     $582     $317
Ratio of Expenses to Average Net
 Assets............................    .40%     .42%       .38%     .44%       .46%     .51%     .50%      .52%     .56%     .63%
Ratio of Net Investment Income to
 Average Net Assets................   1.76%    2.48%      2.87%    3.62%      2.61%    2.55%    2.44%     2.65%    3.11%    3.89%
Portfolio Turnover Rate............     39%      51%        46%      18%        25%      14%      48%       24%      29%       8%
 
<CAPTION>
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</TABLE>
 
4
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<TABLE>
<S>                 <C>
YIELD AND TOTAL     From  time-to-time a  Portfolio may advertise  its yield and
RETURN              total return. BOTH YIELD AND TOTAL RETURN FIGURES ARE  BASED
                    ON  HISTORICAL  EARNINGS AND  ARE  NOT INTENDED  TO INDICATE
                    FUTURE PERFORMANCE. The "total return" of a Portfolio refers
                    to the average annual compounded rates of return over  one-,
                    five-and  ten-year periods or for  the life of the Portfolio
                    (as stated  in  the  advertisement)  that  would  equate  an
                    initial  amount invested at the beginning of a stated period
                    to the ending redeemable  value of the investment,  assuming
                    the reinvestment of all dividend and capital gains distribu-
                    tions.
                    The  "30-day yield" of a Portfolio is calculated by dividing
                    the net investment income per  share earned during a  30-day
                    period  by the net asset value per  share on the last day of
                    the period.  Net  investment income  includes  interest  and
                    dividend  income earned on the Portfolio's securities; it is
                    net of  all  expenses  and all  recurring  and  nonrecurring
                    charges  that have been applied to all shareholder accounts.
                    The yield calculation assumes that the net investment income
                    earned over 30 days is compounded monthly for six months and
                    then annualized. Methods used to calculate advertised yields
                    are standardized for all stock and bond mutual funds. Howev-
                    er, these methods differ from the accounting methods used by
                    a Portfolio to maintain  its books and  records, and so  the
                    advertised  30-day yield  may not  fully reflect  the income
                    paid to your own account or the yield reported in the Fund's
                    reports to shareholder.
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INVESTMENT          The Fund is an open-end diversified investment company  that
OBJECTIVE           consists  of two  Portfolios. The U.S.  Portfolio invests in
EACH PORTFOLIO      equity securities of companies  based in the United  States,
SEEKS TO PROVIDE    and the International Portfolio invests in equity securities
MAXIMUM LONG-TERM   of    companies   based    outside   the    United   States.
TOTAL RETURN        The objective  of  each  Portfolio  is  to  realize  maximum
                    long-term  total  return  consistent  with  reasonable risk.
                    Total return includes both  capital return (appreciation  or
                    depreciation  in a Portfolio's net asset value, adjusted for
                    any distributions of net realized capital gains) and  income
                    return  (dividends from  investment income  net of operating
                    expenses); it assumes the  reinvestment of all dividend  and
                    capital gains distributions.
                    There is no assurance that either Portfolio will achieve its
                    stated objective.
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INVESTMENT          Both  Portfolios  of  the Fund  invest  primarily  in common
POLICIES            stocks that have attractive total return potential. The Fund
THE U.S. PORTFOLIO  is managed  without regard  to  tax ramifications.  The  two
BLENDS GROWTH AND   Portfolios  differ primarily in their geographic orientation
VALUE STRATEGIES    and their investment adviser.
                    The U.S.  Portfolio  invests primarily  in  domestic  common
                    stocks  that  are considered  undervalued by  the investment
                    adviser. Geewax, Terker &  Co. ("Geewax Terker") utilizes  a
                    quantitative  approach to identify from  a large universe of
                    companies those common stocks  with the best relative  total
                    return  potential.  Geewax Terker  selects a  combination of
                    attractively priced  "value"  and "growth"  stocks  for  the
                    Portfolio.  Among  the characteristics  emphasized  in stock
                    selection are (i) market liquidity; (ii) low volatility; and
                    (iii) financial strength relative  to other domestic  common
                    stocks.
</TABLE>
 
                                                                               5
<PAGE>
 
<TABLE>
<S>                 <C>
THE INTERNATIONAL   The  International  Portfolio  invests  primarily  in common
PORTFOLIO           stocks of companies located outside the United States. Under
EMPHASIZES STOCK    normal circumstances,  at  least 65%  of  the  International
SELECTION RATHER    Portfolio's  assets  will  be  invested  in  at  least three
THAN COUNTRY        different  countries.   Batterymarch  Financial   Management
WEIGHTING           examines   securities  from  over   20  international  stock
                    markets, with  emphasis  on  the  five  largest--Japan,  the
                    United  Kingdom, France,  Canada and  Germany. Common stocks
                    are  chosen  for  the  International  Portfolio  using   the
                    investment   adviser's   scoring   system   for  identifying
                    undervalued   common   stocks.   The   weighting   of    the
                    International  Portfolio's assets among individual countries
                    is not based on a  forecast of expected changes in  currency
                    exchange   rates.  Rather,  country  weightings  reflect  an
                    assessment  of  the  attractiveness  of  individual   equity
                    securities regardless of where they trade.
                    Both  Portfolios of  the Fund  will be  diversified across a
                    broad range of industries,  and the International  Portfolio
                    will be diversified across a number of countries, consistent
                    with the objective of providing a high level of total return
                    with  a  reasonable  level  of  risk.  Both  Portfolios  are
                    expected to remain  substantially fully  invested in  equity
                    securities. However, the proportion of cash reserves held by
                    the  Portfolios may increase if  a Portfolio's adviser feels
                    that a conservative investment posture is warranted.
                    Each Portfolio of the Fund is authorized to invest in  stock
                    index   futures  and  options  to  a  limited  extent.  Each
                    Portfolio is permitted to hold equity securities other  than
                    common stock, such as debentures or preferred stock that are
                    convertible into common stock, although there are no present
                    plans  to do so. The  International Portfolio may also enter
                    into forward foreign currency exchange contracts in order to
                    protect  against   fluctuations  in   exchange  rates.   See
                    "Implementation  of Policies" for a description of these and
                    other investment practices of the Fund.
                    The investment objectives and policies  of the Fund are  not
                    fundamental  and so may be changed  by the Board of Trustees
                    without shareholder approval. However, shareholders would be
                    notified prior to a material change in either.
- --------------------------------------------------------------------------------
INVESTMENT RISKS    As  mutual  funds  investing   in  equity  securities,   the
BOTH PORTFOLIOS     Portfolios of the Fund are subject to market risk--i.e., the
ARE SUBJECT TO      possibility  that stock prices in  general will decline over
STOCK MARKET RISK   short or even extended  periods. Domestic and foreign  stock
                    markets  tend to be cyclical, with periods when stock prices
                    generally rise  and  periods  when  stock  prices  generally
                    decline.
                    To  illustrate the volatility of  domestic stock prices, the
                    following table  sets  forth  the extremes  for  U.S.  stock
                    market  returns as well as the average return for the period
                    from 1926 to 1993, as measured by the Standard & Poor's  500
                    Composite Stock Price Index:
</TABLE>
 
<TABLE>
<CAPTION>
       AVERAGE ANNUAL U.S. STOCK MARKET RETURNS (1926-1993)
                    OVER VARIOUS TIME HORIZONS
                     1 YEAR     5 YEARS     10 YEARS     20 YEARS
                   ----------  ----------  -----------  -----------
<S>                <C>         <C>         <C>          <C>
Best                    +53.9%      +23.9%      +20.1%       +16.9%
Worst                   -43.3       -12.5        -0.9         +3.1
Average                 +12.3       +10.3       +10.6        +10.6
</TABLE>
 
6
<PAGE>
 
<TABLE>
<S>                 <C>
                    As  shown, from 1926 to 1993, U.S. common stocks as measured
                    by the S&P 500  Index have provided  an annual total  return
                    (capital  appreciation plus dividend income), on average, of
                    +12.3%. While this average return can be used as a guide for
                    setting reasonable  expectations  for  future  stock  market
                    returns, it may not be useful for forecasting future returns
                    in  any  particular  period,  as  stock  returns  are  quite
                    volatile from year-to-year.
INTERNATIONAL       Investments in foreign stock markets can be as volatile,  if
STOCKS MAY BE MORE  not  more  volatile, than  investments  in U.S.  markets. To
VOLATILE THAN U.S.  illustrate the volatility  of foreign  stock market  returns
STOCKS              for the U.S. dollar-based investor, the following table sets
                    forth  the extremes for foreign stock market returns as well
                    as the average return for the  period from 1969 to 1993,  as
                    measured by the Morgan Stanley Capital International Europe,
                    Australia and Far East (EAFE) Index:
</TABLE>
 
<TABLE>
<CAPTION>
     AVERAGE ANNUAL INTERNATIONAL STOCK MARKET RETURNS
                        (1969-1993)
                OVER VARIOUS TIME HORIZONS
                          1 YEAR     5 YEARS     10 YEARS
                        ----------  ----------  -----------
<S>                     <C>         <C>         <C>
Best                         +70.2%      +36.8%      +22.9%
Worst                        -23.0       + 1.4       + 7.0
Average                      +15.3       +14.7       +15.9
</TABLE>
 
<TABLE>
<S>                 <C>
                    As  shown, over the period  from 1969 to 1993, international
                    (non-U.S.) stocks have provided  an annual total return,  on
                    average,  of +15.3%. By comparison, the average annual total
                    return on U.S. stocks during this same period was +11.7% (as
                    measured by  the Standard  &  Poor's 500  Composite  Index).
                    Note,  however,  that the  period from  1969  to 1993  was a
                    favorable one  for  foreign  stock market  investing.  As  a
                    result,  the  figures  on  total  return  and  stock  market
                    volatility are provided  here only as  a guide to  potential
                    market  risk, and may  not be useful  for forecasting future
                    returns in any particular period.
INTERNATIONAL       For U.S. investors, the returns of foreign investments, such
STOCKS ALSO EXPOSE  as those held by the International Portfolio, are influenced
INVESTORS TO        by not only the returns on foreign common stocks themselves,
CURRENCY AND OTHER  but also by currency risk--i.e., changes in the value of the
RISKS               currencies in which the stocks are denominated. In a  period
                    when   the  U.S.  dollar  generally  rises  against  foreign
                    currencies,  the  returns  on  foreign  stocks  for  a  U.S.
                    investor  are diminished. By contrast,  in a period when the
                    U.S. dollar  generally  declines,  the  returns  on  foreign
                    stocks are enhanced.
                    Other  risks and  considerations of  international investing
                    include the following:  differences in accounting,  auditing
                    and   financial   reporting   standards;   generally  higher
                    commission rates  on  foreign  portfolio  transactions;  the
                    smaller  trading  volumes and  generally lower  liquidity of
                    foreign stock  markets, which  may result  in greater  price
                    volatility;   foreign  withholding  taxes   payable  on  the
                    Portfolio's foreign  securities, which  may reduce  dividend
                    income   payable   to  shareholders;   the   possibility  of
                    expropriation or confiscatory  taxation; adverse changes  in
                    investment   or  exchange   control  regulations;  political
                    instability which could  affect U.S.  investment in  foreign
                    countries;  difficulty  in obtaining  and  enforcing foreign
                    court judgements and potential  restrictions on the flow  of
                    international capital.
</TABLE>
 
                                                                               7
<PAGE>
<TABLE>
<S>                 <C>
                    These  tables on U.S. and international stock market returns
                    should not be  viewed as representations  of future  returns
                    from  U.S.  or international  stock markets  or the  U.S. or
                    International  Portfolios  of  the  Fund.  The   illustrated
                    returns  represent historical  investment performance, which
                    may be a poor  guide to future  returns. Also, stock  market
                    indexes  are  based  on unmanaged  portfolios  of securities
                    before transaction costs and other expenses. Such costs will
                    reduce the  relative investment  performance of  the  Fund's
                    Portfolios  and other "real  world" portfolios. Finally, the
                    Fund's  Portfolios  are  likely   to  differ  in   portfolio
                    composition  from  broad  stock market  averages,  and  so a
                    Portfolio's performance should not be expected to mirror the
                    returns provided by a specific index.
BOTH PORTFOLIOS     The investment advisers manage  the Portfolios according  to
ARE SUBJECT TO      the  traditional methods of  "active" investment management,
MANAGER RISK        which involve  the buying  and selling  of securities  based
                    upon  economic, financial and market analysis and investment
                    judgement. Manager risk refers to the possibility that  each
                    Portfolio's  investment  adviser  may  fail  to  execute the
                    Portfolio's investment  strategy effectively.  As a  result,
                    the Portfolio may fail to achieve its stated objectives.
- --------------------------------------------------------------------------------
WHO SHOULD          The  two Portfolios of  the Fund are  intended for investors
INVEST              who  are  seeking  maximum   long-term  total  return   with
INVESTORS SEEKING   reasonable risk. Because of the risks associated with common
LONG-TERM TOTAL     stock  investments,  the  two  Portfolios  of  the  Fund are
RETURN              intended to  be long-term  investment vehicles  and are  not
                    designed to provide investors with a means of speculating on
                    short-term  stock market movements. Investors should be able
                    to tolerate  sudden, sometimes  substantial fluctuations  in
                    the   value   of   their   investment.   Investors   in  the
                    International Portfolio should  be cognizant  of the  unique
                    risks  of international investing,  including their exposure
                    to currency fluctuations.
                    The Fund is  intended to be  a long-term investment  vehicle
                    and  is not  designed to provide  investors with  a means of
                    speculating on  short-term market  movements. Investors  who
                    engage  in  excessive account  activity  generate additional
                    costs which are borne by all of the Fund's shareholders.  In
                    order  to  minimize  such  costs the  Fund  has  adopted the
                    following policies. The  Fund reserves the  right to  reject
                    any  purchase  request  (including  exchange  purchases from
                    other Vanguard portfolios) that  is reasonably deemed to  be
                    disruptive to efficient portfolio management, either because
                    of  the  timing  of  the  investment  or  previous excessive
                    trading by the investor. Additionally, the Fund has  adopted
                    exchange  privilege limitations as  described in the section
                    "Exchange Privilege Limitations." Finally, the Fund reserves
                    the right to suspend the offering of its shares.
                    No assurance can be given that a Portfolio of the Fund  will
                    attain  its objective or that shareholders will be protected
                    from the risk of loss that is inherent in equity  investing.
                    Investors may wish to reduce the potential risk of investing
                    in  the  Fund by  purchasing shares  on a  regular, periodic
                    basis  (dollar-cost   averaging)  rather   than  making   an
                    investment in one lump sum.
                    Because  of these risks, the Fund should not be considered a
                    complete investment program. Most investors should  maintain
                    diversified  holdings  of  securities  with  different  risk
                    characteristics--including common  stocks, bonds  and  money
                    market instruments. Investors may also wish to complement an
                    investment  in  the Fund  with other  types of  common stock
                    investments.
- --------------------------------------------------------------------------------
</TABLE>
 
8
<PAGE>
<TABLE>
<S>                 <C>
IMPLEMENTATION OF   In addition  to investing  primarily in  equity  securities,
POLICIES            each  Portfolio of the  Fund follows a  number of additional
THE INTERNATIONAL   investment   practices    to    achieve    its    objective.
PORTFOLIO MAY       The  International  Portfolio  of the  Fund  may  enter into
ENTER INTO FORWARD  forward foreign  currency  exchange contracts  in  order  to
CURRENCY CONTRACTS  protect  against uncertainty in the  level of future foreign
                    exchange rates  in  the  purchase  and  sale  of  investment
                    securities.  It  may  not  enter  into  such  contracts  for
                    speculative purposes.
                    A  forward  foreign   currency  exchange   contract  is   an
                    obligation  to  purchase or  sell a  specific currency  at a
                    future date, which may be any fixed number of days from  the
                    date  of the contract agreed upon by the parties, at a price
                    set at  the time  of the  contract. These  contracts may  be
                    bought  or sold to protect the Portfolio to a limited extent
                    against adverse changes  in exchange  rates between  foreign
                    currencies  and  the  U.S.  dollar.  Such  contracts,  which
                    protect the  value of  a Portfolio's  investment  securities
                    against  a  decline  in  the value  of  a  currency,  do not
                    eliminate fluctuations  in  the  underlying  prices  of  the
                    securities,  they  simply establish  an  exchange rate  at a
                    future date. Also, although such contracts tend to  minimize
                    the risk of loss due to a decline in the value of the hedged
                    currency,  at the same time they tend to limit any potential
                    gain that  might  be  realized  should  the  value  of  such
                    currency increase.
EACH PORTFOLIO MAY  Although  both normally  seek to  remain substantially fully
INVEST IN           invested in  equity securities,  the two  Portfolios of  the
SHORT-TERM FIXED    Fund  may  invest  temporarily in  certain  short-term fixed
INCOME SECURITIES   income securities.  Such securities  may be  used to  invest
                    uncommitted  cash  balances, to  maintain liquidity  to meet
                    shareholder redemptions, or  to take  a temporary  defensive
                    position  against potential  stock market  declines. No more
                    than 35%  of  a  Portfolio's  assets  will  be  invested  in
                    short-term  fixed income securities for other than temporary
                    defensive purposes. These securities include: obligations of
                    the  United   States   Government  and   its   agencies   or
                    instrumentalities;  commercial  paper, bank  certificates of
                    deposit, and  bankers'  acceptances; and  repurchase  agree-
                    ments collateralized by these securities.
EACH PORTFOLIO MAY  Each  Portfolio  may  utilize  stock  futures  contracts and
USE FUTURES         options to a  limited extent.  Specifically, each  Portfolio
CONTRACTS AND       may enter into futures contracts provided that not more than
OPTIONS             5% of its assets are required as a futures contract deposit;
                    in addition, each Portfolio may enter into futures contracts
                    and options transactions only to the extent that obligations
                    under such contracts or transactions represent not more than
                    20% of the Portfolio's assets.
                    Futures  contracts  and  options  may  be  used  for several
                    reasons:  to   simulate   full  investment   in   underlying
                    securities  while  retaining a  cash  balance for  Fund man-
                    agement  purposes,   to   facilitate  trading,   to   reduce
                    transaction costs, or to seek higher investment returns when
                    a  futures  contract is  priced  more attractively  than the
                    underlying equity security or index.
</TABLE>
 
                                                                               9
<PAGE>
<TABLE>
<S>                 <C>
                    The risk  of  loss  in trading  futures  contracts  in  some
                    strategies  can be  substantial due  both to  the low margin
                    deposits  required  and   the  extremely   high  degree   of
                    leveraging  involved  in  futures pricing.  As  a  result, a
                    relatively small price  movement in a  futures contract  may
                    result in immediate and substantial loss or gain. However, a
                    Portfolio  will  not use  futures  contracts or  options for
                    speculative purposes or to leverage its assets. Accordingly,
                    the  primary  risks  associated  with  the  use  of  futures
                    contracts  and  options by  a  Portfolio are:  (i) imperfect
                    correlation between the change in market value of the stocks
                    held by the  Portfolio and the  prices of futures  contracts
                    and  options; and (ii)  possible lack of  a liquid secondary
                    market for a futures contract and the resulting inability to
                    close a futures  position prior  to its  maturity date.  The
                    risk of imperfect correlation will be minimized by investing
                    only  in  those  contracts  whose  behavior  is  expected to
                    resemble that of  a Portfolio's  underlying securities.  The
                    risk  that a Portfolio will be  unable to close at a futures
                    position  will   be   minimized  by   entering   into   such
                    transactions  on  a  national exchange  with  an  active and
                    liquid secondary market.
                    The risk  of  loss  in trading  futures  contracts  in  some
                    strategies  can be substantial,  due both to  the low margin
                    deposits required, and the extremely high degree of leverage
                    involved in futures pricing. As a result, a relatively small
                    price movement in a futures contract may result in immediate
                    and  substantial  loss  (or  gain)  to  the  investor.  When
                    investing in futures contracts, the Fund will segregate cash
                    or   cash  equivalents  in  the  amount  of  the  underlying
                    obligation.
EACH PORTFOLIO MAY  Each Portfolio  may  lend  its investment  securities  on  a
LEND ITS            short-term  or  long-term basis  to  qualified institutional
SECURITIES          investors for the  purpose of  realizing additional  income.
                    Loans of securities by a Portfolio will be collateralized by
                    cash,  letters of credit, or securities issued or guaranteed
                    by the U.S. Government or its agencies. The collateral  will
                    equal  at  least 100%  of the  current  market value  of the
                    loaned securities.
BORROWING           The Fund may borrow money,  subject to the limits set  forth
                    below,  for temporary  or emergency  purposes, including the
                    meeting of redemption requests which might otherwise require
                    the untimely disposition of securities.
PORTFOLIO TURNOVER  Although both Portfolio's generally  seek to invest for  the
IS NOT EXPECTED TO  long  term, the Portfolios  of the Fund  retain the right to
EXCEED 100%         sell securities  irrespective of  how  long they  have  been
                    held.  It is anticipated that  the annual portfolio turnover
                    of each Portfolio will not  exceed 100%. A turnover rate  of
                    100%  would occur, for  example, if all  the securities of a
                    Portfolio  were   replaced  within   one  year.   The   U.S.
                    Portfolio's  portfolio turnover was  unusually high for 1992
                    and 1993 due to a  change in investment advisers during  the
                    first  year of that period.  The new adviser, Geewax Terker,
                    restructured the  U.S. Portfolio,  selling some  stocks  and
                    purchasing  others.  As a  result  of this  temporarily high
                    annual turnover,  the U.S.  Portfolio incurred  higher  than
                    normal transaction costs during 1992 and 1993.
- --------------------------------------------------------------------------------
INVESTMENT          Each  Portfolio has adopted  certain limitations designed to
LIMITATIONS         reduce its exposure  to specific situations.  Some of  these
THE FUND HAS        limitations are that a Portfolio will not:
ADOPTED CERTAIN     (a)  with respect to  75% of the value  of its total assets,
FUNDAMENTAL         invest more than 5% of its  assets in the securities of  any
LIMITATIONS             single   issuer  (other   than  obligations   issued  or
                        guaranteed as  to principal  and  interest by  the  U.S.
                        Government, its agencies or instrumentalities);
                    (b) with  respect to 75%  of the value  of its total assets,
                    purchase more  than  10% of  the  voting securities  of  any
                        issuer;
</TABLE>
 
10
<PAGE>
<TABLE>
<S>                 <C>
                    (c) invest more than 25% of its assets in any one industry;
                    (d)  borrow money, except from  banks (or through repurchase
                    agreements) for  temporary  or  emergency  (not  leveraging)
                        purposes, and then not in an amount exceeding 10% of the
                        value of the Fund's net assets at the time the borrowing
                        is  made. Whenever borrowing exceeds  5% of the value of
                        the Fund's  net  assets,  the Fund  will  not  make  any
                        additional investments; and
                    (e)  make loans,  except by (i)  purchasing a  portion of an
                    issue of bonds, debentures or similar obligations which  are
                        either  publicly distributed or customarily purchased by
                        institutional investors, (ii)  entering into  repurchase
                        agreements    (provided,   however,    that   repurchase
                        agreements maturing in  more than  seven days,  together
                        with  securities which are  not readily marketable, will
                        not exceed 10% of a Portfolio's total assets), and (iii)
                        lending its investment securities.
                    These investment  limitations  are considered  at  the  time
                    investment   securities   are  purchased.   The  limitations
                    described here  and in  the Statement  of Additional  Infor-
                    mation  may be changed only with  the approval of a majority
                    of a Portfolio's shareholders.
- --------------------------------------------------------------------------------
MANAGEMENT OF THE   The Fund is  a member  of The Vanguard  Group of  Investment
FUND                Companies,  a  family  of 32  investment  companies  with 78
VANGUARD            distinct investment portfolios and total assets in excess of
ADMINISTERS AND     $120 billion. Through  their jointly  owned subsidiary,  The
DISTRIBUTES THE     Vanguard  Group, Inc.  ("Vanguard"), the Fund  and the other
FUND                funds in the  Group obtain  at cost virtually  all of  their
                    corporate  management, administrative  and distribution ser-
                    vices. Vanguard also  provides investment advisory  services
                    on  an at-cost basis to certain  Vanguard funds. As a result
                    of Vanguard's unique corporate structure, the Vanguard funds
                    have costs substantially lower than those of most  competing
                    mutual  funds. In  1993, the  average expense  ratio (annual
                    costs including advisory fees  divided by total net  assets)
                    for  the  Vanguard  funds  amounted  to  approximately  .30%
                    compared to an average of 1.02% for the mutual fund industry
                    (data provided by Lipper Analytical Services).
                    Vanguard  employs  a  supporting  staff  of  management  and
                    administrative  personnel  needed to  provide  the requisite
                    services to  the funds  and also  furnishes the  funds  with
                    necessary office space, furnishings and equipment. Each fund
                    pays  its  share  of Vanguard's  total  expenses,  which are
                    allocated among  the funds  under  methods approved  by  the
                    Board  of Trustees  (Directors) of  each fund.  In addition,
                    each fund  bears its  own direct  expenses, such  as  legal,
                    auditing and custodian fees.
                    The  Officers of  the Fund manage  its day-to-day operations
                    and are responsible  to the  Fund's Board  of Trustees.  The
                    Trustees  set  broad policies  for the  Fund and  choose its
                    Officers. A list of  the Trustees and  Officers of the  Fund
                    and  a statement  of their  present positions  and principal
                    occupations during the past five  years can be found in  the
                    Statement of Additional Information.
                    Vanguard provides distribution and marketing services to the
                    funds.  The funds  are available  on a  no-load basis (i.e.,
                    there are no sales commissions or 12b-1 fees). However, each
                    fund bears its share of the Group's distribution costs.
- --------------------------------------------------------------------------------
</TABLE>
 
                                                                              11
<PAGE>
<TABLE>
<S>                 <C>
INVESTMENT          The investment  adviser to  the  U.S. Portfolio  is  Geewax,
ADVISERS            Terker   &   Co.   ("Geewax  Terker"),   99   Starr  Street,
GEEWAX TERKER       Phoenixville,  PA  19460.   Under  an  investment   advisory
MANAGES THE U.S.    agreement  dated April  1, 1992,  Geewax Terker  manages the
PORTFOLIO'S         investment and reinvestment of  the U.S. Portfolio's  assets
INVESTMENTS         and  continuously  reviews, supervises  and  administers the
                    U.S.   Portfolio's   investment   program.   Geewax   Terker
                    discharges  its responsibilities  subject to  the control of
                    the Officers and Trustees of the Fund.
                    Founded in 1982, Geewax Terker provides investment  advisory
                    services to institutional endowment and pension funds. As of
                    December   31,  1993,  Geewax   Terker  provided  investment
                    advisory  services  with  respect  to  approximately   $2.28
                    billion   of  client  assets.   Geewax  Terker's  investment
                    approach is  quantitative and  uses a  series of  analytical
                    screens  to evaluate  a universe  of over  3,000 stocks from
                    which an "investable universe"  of approximately 900  stocks
                    is  determined. Stock selections for  the U.S. Portfolio are
                    made from  those 900  stocks. John  J. Geewax  and Bruce  E.
                    Terker,   founders  and  Partners   of  Geewax  Terker,  are
                    primarily responsible for managing the U.S. Portfolio.
                    The investment advisory fee payable to Geewax Terker by  the
                    U.S.   Portfolio   will  represent   a  percentage   of  the
                    Portfolio's average net assets  adjusted for the  investment
                    performance  of  the  Portfolio  relative  to  that  of  the
                    Standard &  Poor's 500  Composite  Stock Price  Index  ("S&P
                    500") over the preceding 36-month period as follows:
<CAPTION>
    THREE YEAR
   PERFORMANCE
 DIFFERENTIAL VS.                              ANNUAL
   THE S&P 500                                FEE RATE
- ------------------                       ------------------
<S>                 <C>
          +4.5% points or more above          0.60%
          +2.25% points but less than
          +4.5% points above                  0.40%
          Less than +2.25% points above       0.20%
</TABLE>
 
<TABLE>
<S>                 <C>
                    The  incentive/penalty  fee  structure  will  not  be  fully
                    operable until the quarter ending March 31, 1995, and, until
                    that  date,  will   be  calculated   according  to   certain
                    transition  rules. From  April 1, 1992  through December 31,
                    1992, the fee was payable at the rate of .40% per annum. For
                    quarters ending after this period, the fee is computed based
                    upon a  comparison  of  the investment  performance  of  the
                    Portfolio  and that of the S&P 500 over the number of months
                    that have elapsed between April 1,  1992 and the end of  the
                    quarter when the fee is computed.
BATTERYMARCH        The investment adviser to the International Portfolio of the
MANAGES THE         Fund  is Batterymarch Financial Management ("Batterymarch"),
INTERNATIONAL       600 Atlantic Avenue, Boston, MA 02210. Under its  investment
PORTFOLIO'S         advisory  agreement with the  Fund, Batterymarch manages the
INVESTMENTS         investment and reinvestment of the International Portfolio's
                    assets and continuously reviews, supervises, and administers
                    the Portfolio's investment program. Batterymarch  discharges
                    its  responsibilities subject to the control of the Officers
                    and Trustees of the Fund.
                    Founded in 1969, Batterymarch is a sole proprietorship which
                    provides  investment  advisory  services  to   institutional
                    accounts,  such  as  corporate pension  plans  and endowment
                    funds, as  well as  to  individual investors.  Total  assets
                    under management were $6.39 billion as of December 31, 1993.
                    For  the majority  of Batterymarch's  clients, including the
                    Fund, the investment  principals at  Batterymarch develop  a
                    common,  firm-wide investment  strategy that  is employed in
                    managing client investment  portfolios and selecting  equity
                    securities for those portfolios.
</TABLE>
 
12
<PAGE>
 
<TABLE>
<S>                 <C>
                    Dean  LeBaron and  Jarrod Wilcox,  Trustees of Batterymarch,
                    are primarily  responsible  for managing  the  International
                    Portfolio  of  the  Fund.  A  founder  of  Batterymarch, Mr.
                    LeBaron has been with the firm since its inception in  1969.
                    Mr.  Wilcox was associated with  Batterymarch as a portfolio
                    manager from 1980  through 1985. He  then became  associated
                    with   another  investment   advisory  firm,   and  rejoined
                    Batterymarch in 1991.
                    The International  Portfolio pays  Batterymarch an  advisory
                    fee  calculated by applying various  percentage rates to the
                    aggregate average  net  assets  of the  Portfolio.  The  fee
                    schedule is as follows:
</TABLE>
 
<TABLE>
<CAPTION>
                         NET ASSETS          RATE
                    --------------------    -------
<S>                 <C>                     <C>
                    First $10 million         0.85%
                    Next $10 million          0.45%
                    Next $30 million          0.35%
                    Next $450 million         0.15%
                    Over $500 million         0.12%
</TABLE>
 
<TABLE>
<S>                 <C>
                    Prior  to April  1, 1992, Batterymarch  served as investment
                    adviser to both the  U.S. and International Portfolios.  For
                    the  fiscal  year ended  December  31, 1993,  the investment
                    advisory fee  paid  by  the U.S.  Portfolio  represented  an
                    effective  annual rate  of .59 of  1% of  average net assets
                    while  the  International  Portfolio's  fee  represented  an
                    effective annual rate of .16 of 1% of average net assets.
                    The  investment  advisory agreements  authorize Batterymarch
                    and Geewax Terker to select  brokers and dealers to  execute
                    purchases  and sales of the Fund's portfolio securities, and
                    direct the respective advisers to use their best efforts  to
                    obtain  the  best  available price  and  the  most favorable
                    execution with respect to  all transactions. The full  range
                    and  quality of brokerage  services available are considered
                    in making these determinations.
                    The Fund has  authorized Batterymarch and  Geewax Terker  to
                    pay  higher commissions in recognition of brokerage services
                    felt necessary  for  the achievement  of  better  execution,
                    provided  the respective advisers believe  this to be in the
                    best interest of the Portfolio.  Although the Fund does  not
                    market   its  shares  through   intermediary  brokers,  each
                    Portfolio may place orders with qualified broker-dealers who
                    recommend the Portfolio  to clients if  the Officers of  the
                    Fund  believe that  the quality  of the  transaction and the
                    commission are comparable to what  they would be with  other
                    qualified brokerage firms.
                    The  Fund's Board of  Trustees may, without  the approval of
                    shareholders, provide  for:  (a)  the employment  of  a  new
                    investment  adviser pursuant to the  terms of a new advisory
                    agreement, either as a  replacement for an existing  adviser
                    or as an additional adviser; (b) a change in the terms of an
                    advisory  agreement; and (c) the  continued employment of an
                    existing adviser on the same advisory contract terms where a
                    contract has been assigned because of a change in control of
                    the adviser. Any such change will only be made upon not less
                    than 30 days  prior written  notice to  shareholders of  the
                    Fund  which  shall  include  substantially  the  information
                    concerning  the  adviser  that  would  have  normally   been
                    included in a proxy statement.
- --------------------------------------------------------------------------------
</TABLE>
 
                                                                              13
<PAGE>
 
<TABLE>
<S>                 <C>
PERFORMANCE RECORD  The   tables  below  provide  investment  results  for  both
                    Portfolios  for  several   periods  throughout  the   Fund's
                    lifetime. The results shown represent "total return" invest-
                    ment  performance,  which  assumes the  reinvestment  of all
                    capital  gains  and  income  dividends  for  the   indicated
                    periods.  Also  included  is  comparative  information  with
                    respect to  the unmanaged  Standard &  Poor's 500  Composite
                    Stock  Price Index,  a widely-used  barometer of  U.S. stock
                    market activity;  the Consumer  Price Index,  a  statistical
                    measure of changes in the prices of U.S. goods and services;
                    and   the  Morgan  Stanley   Capital  International  Europe,
                    Australia  and  Far  East  Index  ("EAFE"),  a   diversified
                    portfolio  of foreign stocks commonly used as a benchmark of
                    foreign stock market  activity. The tables  do not make  any
                    allowance  for federal,  state or local  income taxes, which
                    shareholders must pay on a current basis.
</TABLE>
 
<TABLE>
<S>                 <C>
                    The results shown should not be considered a  representation
                    of  the total  return from  an investment  made in  the Fund
                    today. The periods shown  were generally favorable ones  for
                    stock market investing. This information is provided to help
                    investors  better understand the Fund  and may not provide a
                    basis for comparison with other investments or mutual  funds
                    which use a different method to calculate performance.
</TABLE>
 
<TABLE>
<CAPTION>
                                 AVERAGE ANNUAL RETURN FOR
                             VANGUARD/TRUSTEES' EQUITY FUND--
                                      U.S. PORTFOLIO
                       ---------------------------------------------
FISCAL PERIODS             U.S.          S&P 500         CONSUMER
ENDED 12/31/93          PORTFOLIO         INDEX         PRICE INDEX
- --------------------   ------------    -----------     -------------
<S>                    <C>             <C>             <C>
1 Year                     +17.2%         +10.1  %          +2.7%
5 Years                    +11.2          +14.5             +3.9
10 Years                   +11.2          +14.9             +3.6
Lifetime*                  +13.8          +15.1             +5.0
*JANUARY 31, 1980 TO DECEMBER 31, 1993.
</TABLE>
 
<TABLE>
<CAPTION>
                               AVERAGE ANNUAL RETURN FOR
                            VANGUARD/TRUSTEES' EQUITY FUND--
                                INTERNATIONAL PORTFOLIO
                       ------------------------------------------
FISCAL PERIODS          INTERNATIONAL       EAFE       CONSUMER
ENDED 12/31/93            PORTFOLIO         INDEX     PRICE INDEX
- --------------------   ----------------    -------    -----------
<S>                    <C>                 <C>        <C>
1 Year                       +30.5%         +33.1%        +2.7%
5 Years                      + 7.7          + 2.6         +3.9
10 Years                     +16.2          +18.1         +3.6
Lifetime*                    +15.7          N/A          N/A
*MAY 16, 1983 TO DECEMBER 31, 1993.
</TABLE>
 
<TABLE>
<S>                 <C>
- --------------------------------------------------------------------------------
</TABLE>
h-TM-
 
14
<PAGE>
 
<TABLE>
<S>                 <C>
DIVIDENDS, CAPITAL  Dividend    and   capital   gains   distributions   may   be
GAINS AND TAXES     automatically reinvested or received in cash. See  "Choosing
THE FUND PAYS       a   Distribution   Option"  for   a  description   of  these
QUARTERLY           distribution methods.
DIVIDENDS AND ANY   In  addition,  in  order  to  satisfy  certain  distribution
CAPITAL GAINS       requirements  of the  Tax Reform Act  of 1986,  the Fund may
ANNUALLY            declare  special   year-end  dividend   and  capital   gains
                    distributions   during  December.   Such  distributions,  if
                    received by shareholders by January  31, are deemed to  have
                    been  paid  by  the  Fund and  received  by  shareholders on
                    December 31 of the prior year.
                    Each Portfolio of  the Fund intends  to continue to  qualify
                    for  taxation as a "regulated  investment company" under the
                    Internal Revenue Code  so that  each Portfolio  will not  be
                    subject  to federal income  tax to the  extent its income is
                    distributed to shareholders. Dividends paid by the Fund from
                    net  investment  income,   whether  received   in  cash   or
                    reinvested   in  additional  shares,   will  be  taxable  to
                    shareholders as ordinary income. For corporate investors  of
                    the  U.S.  Portfolio, dividends  from net  investment income
                    will  generally  qualify  in  part  for  the  intercorporate
                    dividends-received  deduction. However,  the portion  of the
                    dividends so  qualified  depends on  the  aggregate  taxable
                    qualifying  dividend income received by the Fund from domes-
                    tic (U.S.) sources.
                    Distributions paid by the Fund from long-term capital gains,
                    whether received in cash or reinvested in additional shares,
                    are taxable as  long-term capital gains,  regardless of  the
                    length  of time you  have owned shares  in the Fund. Capital
                    gains distributions are made  when a Portfolio realizes  net
                    capital  gains on  sales of portfolio  securities during the
                    year. The  Fund  does not  seek  to realize  any  particular
                    amount  of  capital gains  during  a year;  rather, realized
                    gains are a  byproduct of  portfolio management  activities.
                    Consequently, capital gains distributions may be expected to
                    vary  considerably  from  year-to-year;  there  will  be  no
                    capital  gains  distributions  in  years  when  a  Portfolio
                    realizes net capital losses.
                    Note that if you accept capital gains distributions in cash,
                    instead of reinvesting them in additional shares, you are in
                    effect  reducing the  capital at work  for you  in the Fund.
                    Also, keep in mind that if  you purchase shares in the  Fund
                    shortly  before the  record date  for a  dividend or capital
                    gains distribution,  a portion  of your  investment will  be
                    paid to you as a taxable distribution, regardless of whether
                    you  are reinvesting your distributions or receiving them in
                    cash.
                    The Fund will notify  you annually as to  the tax status  of
                    dividend and capital gains distributions paid by the Fund.
THE INTERNATIONAL   The  International Portfolio may elect  to "pass through" to
PORTFOLIO MAY       the Portfolio's shareholders  the amount  of foreign  income
"PASS THROUGH"      taxes paid by the Portfolio. The Portfolio will make such an
FOREIGN TAXES       election  only if it deems it to be in the best interests of
                    its shareholders.
                    If this election is made, shareholders of the  International
                    Portfolio  will be required to include in their gross income
                    their pro rata share of foreign taxes paid by the Portfolio.
                    However, shareholders will be able  to treat their pro  rata
                    share  of foreign taxes as either an itemized deduction or a
                    foreign tax credit against U.S. income taxes (but not  both)
                    on their federal income tax return.
</TABLE>
 
                                                                              15
<PAGE>
<TABLE>
<S>                 <C>
A CAPITAL GAIN OR   A  sale of shares  of the Fund  is a taxable  event, and may
LOSS MAY BE         result in a capital gain or loss. A capital gain or loss may
REALIZED UPON       be realized  from an  ordinary redemption  of shares  or  an
EXCHANGE OR         exchange   of  shares  between  two  mutual  funds  (or  two
REDEMPTION          portfolios of a mutual fund).  Any loss incurred on sale  or
                    exchange  of the Fund's shares, held for six months or less,
                    will be treated as a long-term capital loss to the extent of
                    capital  gains  dividends  received  with  respect  to  such
                    shares.
                    Dividend  distributions,  capital  gains  distributions, and
                    capital gains or losses  from redemptions and exchanges  may
                    be subject to state and local taxes.
                    The  Fund is required to  withhold 31% of taxable dividends,
                    capital  gains  distributions,   and  redemptions  paid   to
                    shareholders   who  have  not  complied  with  IRS  taxpayer
                    identification regulations. You  may avoid this  withholding
                    requirement  by certifying on your Account Registration Form
                    your  proper  Social  Security  or  Taxpayer  Identification
                    Number  and by certifying that you are not subject to backup
                    withholding.
                    The Fund is organized as  a Pennsylvania business trust  and
                    therefore  is not liable under current law for any corporate
                    income or franchise tax of the Commonwealth of Pennsylvania.
                    The Fund is subject to Pennsylvania county personal property
                    tax in the county which is the site of its principal office.
                    In the opinion of counsel, shareholders who are Pennsylvania
                    residents are not subject to county personal property  taxes
                    on  their shares, with the exception of shareholders who are
                    residents  of  Allegheny  County  or  the  City  and  School
                    District of Pittsburgh.
                    The  tax discussion set forth  above is included for general
                    information only. Prospective investors should consult their
                    own tax  advisers  concerning  the tax  consequences  of  an
                    investment  in the Fund. The  Fund is managed without regard
                    to tax ramifications.
- --------------------------------------------------------------------------------
THE SHARE PRICE OF  Each Portfolio's share price or "net asset value" per  share
EACH PORTFOLIO      is  determined as of the close of regular trading on the New
                    York Stock Exchange  (generally 4:00 p.m.  Eastern time)  on
                    each  day the Exchange is open  for trading. Net asset value
                    per share  is computed  by  dividing the  total value  of  a
                    Portfolio's  investments and other assets of each Portfolio,
                    less any liabilities, by the number of outstanding shares of
                    such Portfolio.
                    Securities listed  on  a U.S.  exchange  are valued  at  the
                    latest  quoted sale prices on the day the valuation is made.
                    Securities listed on a U.S. exchange which are not traded on
                    the valuation date are  valued at the  mean between the  bid
                    and  ask prices. Securities listed on a foreign exchange are
                    valued at  the  latest  quoted sales  price  available.  All
                    prices  of  listed securities  are  taken from  the exchange
                    where the security is primarily traded. Securities regularly
                    traded in  the  over-the-counter  market  for  which  market
                    quotations  are  readily  available will  be  valued  at the
                    latest quoted bid  price. Securities  may be  valued on  the
                    basis  of  prices provided  by a  pricing service  when such
                    prices are believed to reflect the fair market value of such
                    securities.  Other  assets  and  securities  for  which   no
                    quotations  are readily available will be valued in a manner
                    determined in good faith by the Board of Trustees to reflect
                    their fair value.
</TABLE>
 
16
<PAGE>
 
<TABLE>
<S>                 <C>
                    For purposes  of determining  the International  Portfolio's
                    net  asset  value  per  share,  all  assets  and liabilities
                    initially expressed in foreign currencies will be translated
                    into U.S.  dollars  at  the bid  price  of  such  currencies
                    against  U.S. dollars quoted by major  banks as of 4:00 p.m.
                    Central Europe time. If such quotations are not available as
                    of the close of the Exchange,  the rate of exchange will  be
                    determined  in accordance with  policies established in good
                    faith by the Board of Trustees.
                    The share price of each Portfolio can be found daily in  the
                    mutual  fund  section  of most  major  newspapers  under the
                    heading of The Vanguard Group.
- --------------------------------------------------------------------------------
GENERAL             Vanguard/Trustees' Equity  Fund is  a Pennsylvania  business
INFORMATION         trust.  The  Declaration of  Trust  permits the  Trustees to
                    issue an unlimited number of shares of beneficial  interest,
                    without  par value, from  an unlimited number  of classes of
                    shares. Currently,  the  Fund  is offering  two  classes  of
                    shares (known as Portfolios).
                    Shares  of  each Portfolio  when issued  are fully  paid and
                    non-assessable;   participate    equally    in    dividends,
                    distributions  and net assets; are  entitled to one vote per
                    share; have pro  rata liquidation  rights; and  do not  have
                    pre-emptive   rights.   Also,  shares   of  the   Fund  have
                    non-cumulative voting rights,  meaning that  the holders  of
                    more  than 50% of the shares  voting for the election of the
                    Trustees can elect all of the Trustees if they so choose.
                    Annual meetings of shareholders will  not be held except  as
                    required  by the  Investment Company  Act of  1940 and other
                    applicable law. An annual  meeting will be  held to vote  on
                    the  removal  of  a  Trustee  or  Trustees  of  the  Fund if
                    requested in writing by the holders of not less than 10%  of
                    the outstanding shares of the Fund.
                    All  securities and cash  of the U.S.  Portfolio are held by
                    State  Street  Bank  and  Trust  Company,  Boston,  MA.  All
                    securities  and cash of the International Portfolio are held
                    by Morgan Stanley Trust Company, New York, NY. The  Vanguard
                    Group, Inc., Valley Forge, PA, serves as the Fund's Transfer
                    and  Dividend Disbursing  Agent. Price  Waterhouse serves as
                    independent accountants  for the  Fund  and will  audit  its
                    financial  statements annually. The Fund  is not involved in
                    any litigation.
- --------------------------------------------------------------------------------
</TABLE>
 
                                                                              17
<PAGE>
                               SHAREHOLDER GUIDE
 
<TABLE>
<S>                 <C>
OPENING AN ACCOUNT  You may to open  a regular (non-retirement) account,  either
AND PURCHASING      by  mail or  wire. Simply  complete and  return your Account
SHARES              Registration Form  and  any  required  legal  documentation,
                    indicating the amount you wish to invest. Your purchase must
                    be  equal  to or  greater than  the $10,000  minimum initial
                    investment requirement ($500 for Uniform Gifts/Transfers  to
                    Minors  Act  accounts).  You  must  open  a  new  Individual
                    Retirement Account by mail (IRAs may not be opened by  wire)
                    using  a Vanguard IRA Adoption Agreement. Your purchase must
                    be equal  to  or  greater  than  the  $500  minimum  initial
                    investment  requirement, but no more  than $2,000 if you are
                    making a  regular IRA  contribution. Rollover  contributions
                    are  generally limited  to the  amount withdrawn  within the
                    past 60 days from an IRA or other qualified Retirement Plan.
                    If you need assistance with the forms or have any  questions
                    about  this  Fund,  please  call  our  Investor  Information
                    Department  (1-800-662-7447).  Note:  For  other  types   of
                    account  registrations  (e.g.,  corporations,  associations,
                    other organizations, trusts or  powers of attorney),  please
                    call us to determine which additional forms you may need.
                    Because   of   the  risks   associated  with   common  stock
                    investments,  the  Fund  is  intended  to  be  a   long-term
                    investment  vehicle and is not designed to provide investors
                    with a means of speculating on short-term market  movements.
                    Consequently,  the  Fund reserves  the  right to  reject any
                    specific purchase (and exchange purchase) request. The  Fund
                    also  reserves the right  to suspend the  offering of shares
                    for a period of time.
                    The Fund's shares are  purchased at the next-determined  net
                    asset  value after  your investment  has been  received. The
                    Fund is offered on a no-load basis (i.e., there are no sales
                    commissions or 12b-1 fees).
ADDITIONAL          Subsequent investments to  regular accounts may  be made  by
INVESTMENTS         mail  ($1,000 minimum), wire ($1,000 minimum), exchange from
                    another Vanguard Fund  account ($100  minimum), or  Vanguard
                    Fund   Express.   Subsequent   investments   to   Individual
                    Retirement Accounts may  be made by  mail ($100 minimum)  or
                    exchange   from  another  Vanguard  Fund  account.  In  some
                    instances, contributions  may be  made by  wire or  Vanguard
                    Fund  Express. Please call us  for more information on these
                    options.
                    ------------------------------------------------------------
</TABLE>
 
18
<PAGE>
 
<TABLE>
<CAPTION>
                                                      ADDITIONAL INVESTMENTS
                           NEW ACCOUNT                 TO EXISTING ACCOUNTS
<S>               <C>                             <C>
PURCHASING BY     Please include  the amount  of  Additional  investments should
MAIL              your  initial  investment  and  include   the   Invest-by-Mail
Complete and      the name of the Portfolio  you  remittance  form  attached  to
sign the          have selected on the            your Fund confirmation
enclosed Account  registration form,  make  your  statements.  Please  make your
Registration      check payable to THE  VANGUARD  check  payable to THE VANGUARD
Form              GROUP--(Portfolio Number) (see  GROUP--(Portfolio Number), see
                  below  for   the   appropriate  below   for   the  appropriate
                  Portfolio number and mail  to:  Portfolio  number,  write your
                  VANGUARD   FINANCIAL    CENTER  account  number on  your check
                  P.O. BOX 2600                   and, using the return envelope
                  VALLEY FORGE, PA 19482          provided, mail to the  address
                                                  indicated  on  the  Invest-by-
                                                  Mail Form.
For express or    VANGUARD FINANCIAL CENTER       All written requests should be
registered mail,  455 DEVON PARK DRIVE            mailed to one of the addresses
send to:          WAYNE, PA 19087                 indicated for new accounts. Do
                                                  not send registered or express
                                                  mail to  the post  office  box
                                                  address.
                  VANGUARD/TRUSTEES' EQUITY FUND PORTFOLIOS:
                  UNITED STATES PORTFOLIO--25
                  INTERNATIONAL PORTFOLIO--46
                  --------------------------------------------------------------
</TABLE>
 
<TABLE>
<S>                 <C>
PURCHASING BY WIRE                CORESTATES BANK, N.A.
Money should be                   ABA 031000011
wired to:                         CORESTATES NO 0101 9897
                                  ATTN VANGUARD
BEFORE WIRING                     VANGUARD/TRUSTEES' EQUITY FUND
Please contact                    PORTFOLIO NAME
Client Services                   ACCOUNT NUMBER
(1-800-662-2739)                  ACCOUNT REGISTRATION
                    To  assure proper receipt, please be sure your bank includes
                    the Portfolio name, the account number Vanguard has assigned
                    to you and  the eight  digit CoreStates number.  If you  are
                    opening   a  new   account,  please   complete  the  Account
                    Registration Form and mail it  to the "New Account"  address
                    above  after completing your wire arrangement. NOTE: Federal
                    Funds wire purchase  orders will be  accepted only when  the
                    Fund and Custodian Banks are open for business.
                    ------------------------------------------------------------
PURCHASING BY       You  may open a new account or purchase additional shares by
EXCHANGE (from a    making  an  exchange  from  an  existing  Vanguard  account.
Vanguard account)   However,  the Fund reserves the right to refuse any exchange
                    purchase  request.  Call  our  Client  Services   Department
                    (1-800-662-2739)  for assistance. The  new account will have
                    the same registration as the existing account.
                    ------------------------------------------------------------
</TABLE>
 
                                                                              19
<PAGE>
 
<TABLE>
<S>                 <C>
PURCHASING BY       The Fund Express SPECIAL PURCHASE option lets you move money
FUND EXPRESS        from your  bank account  to your  Vanguard account  at  your
Special Purchase    request.  Or if you choose  the AUTOMATIC INVESTMENT option,
and                 money will be moved from your bank account to your  Vanguard
Automatic           account  on  the schedule  (monthly, bimonthly  [every other
Investment          month], quarterly or yearly) you select. To establish  these
                    Fund   Express  options,  please   provide  the  appropriate
                    information on the Account  Registration Form. We will  send
                    you  a confirmation of your  Fund Express enrollment; please
                    wait three weeks before using the service.
- --------------------------------------------------------------------------------
CHOOSING A          You  must  select   one  of   three  distribution   options:
DISTRIBUTION        1. AUTOMATIC REINVESTMENT OPTION--Both dividends and capital
OPTION              gains  distributions will  be reinvested  in additional Fund
                       shares.  This   option   will   be   selected   for   you
                       automatically   unless  you  specify  one  of  the  other
                       options.
                    2. CASH DIVIDEND OPTION--Your dividends will be paid in cash
                    and your capital gains will be reinvested in additional Fund
                       shares.
                    3.  ALL  CASH  OPTION--Both   dividend  and  capital   gains
                    distributions will be paid in cash.
                    You  may change your  option by calling  our Client Services
                    Department (1-800-662-2739).
                    In addition, an option to invest your cash dividends  and/or
                    capital gains distributions in another Vanguard Fund account
                    is  available.  Please call  our Client  Services Department
                    (1-800-662-2739)  for  information.   You  may  also   elect
                    Vanguard  Dividend Express which allows you to transfer your
                    cash   dividends   and/or   capital   gains    distributions
                    automatically  to  your  bank  account.  Please  see  "Other
                    Vanguard Services" for more information.
- --------------------------------------------------------------------------------
TAX CAUTION         Under Federal tax laws, the  Fund is required to  distribute
INVESTORS SHOULD    net  capital gains and dividend income to Fund shareholders.
ASK ABOUT THE       These distributions  are made  to all  shareholders who  own
TIMING OF CAPITAL   Fund shares as of the distribution's record date, regardless
GAINS AND DIVIDEND  of  how long the  shares have been  owned. Purchasing shares
DISTRIBUTIONS       just prior  to  the record  date  could have  a  significant
BEFORE INVESTING    impact  on your tax liability for  the year. For example, if
                    you purchase shares immediately prior to the record date  of
                    a  sizable capital gain or income dividend distribution, you
                    will be assessed  taxes on  the amount of  the capital  gain
                    and/or  dividend  distribution  later paid  even  though you
                    owned the  Fund shares  for  just a  short period  of  time.
                    (Taxes  are due on the distributions even if the dividend or
                    gain is  reinvested in  additional Fund  shares.) While  the
                    total  value of your  investment will be  the same after the
                    distribution--the amount of the distribution will offset the
                    drop in the NAV  of the shares--you should  be aware of  the
                    tax implications the timing of your purchase may have.
                    Prospective   investors  should,  therefore,  inquire  about
                    potential distributions before investing. The Fund's  annual
                    capital  gains  distribution  normally  occurs  in December,
                    while income  dividends  are  generally  paid  quarterly  in
                    March,   June,  September   and  December.   For  additional
                    information on  distributions  and taxes,  see  the  section
                    titled "Dividends, Capital Gains, and Taxes."
- --------------------------------------------------------------------------------
</TABLE>
 
20
<PAGE>
 
<TABLE>
<S>                 <C>
IMPORTANT           The  easiest way to establish  optional Vanguard services on
INFORMATION         your account is to  select the options  you desire when  you
ESTABLISHING        complete  your Account Registration Form. If you wish to add
OPTIONAL SERVICES   shareholder options later, you may need to provide  Vanguard
                    with  additional  information  and  a  signature  guarantee.
                    Please call our Client Services Department  (1-800-662-2739)
                    for further assistance.
SIGNATURE           For  our  mutual  protection,  we  may  require  a signature
GUARANTEES          guarantee  on  certain   written  transaction  requests.   A
                    signature guarantee verifies the authenticity of your signa-
                    ture  and may be obtained from  banks, brokers and any other
                    guarantor  that  Vanguard  deems  acceptable.  A   SIGNATURE
                    GUARANTEE CANNOT BE PROVIDED BY A NOTARY PUBLIC.
CERTIFICATES        Share  certificates  will  be  issued  upon  request.  If  a
                    certificate is lost, you may incur an expense to replace it.
BROKER-DEALER       If  you  purchase  shares   in  Vanguard  Funds  through   a
PURCHASES           registered   broker-dealer   or   investment   adviser,  the
                    broker-dealer or adviser may charge a service fee.
CANCELLING TRADES   The Fund  will  not  cancel any  trade  (e.g.,  a  purchase,
                    exchange  or redemption) believed  to be authentic, received
                    in  writing  or  by  telephone,  once  the  trade  has  been
                    received.
- --------------------------------------------------------------------------------
WHEN YOUR ACCOUNT   Your  TRADE  DATE  is  the date  on  which  your  account is
WILL                credited. If your purchase is  made by check, Federal  Funds
BE CREDITED         wire  or exchange, and  is received by the  close of the New
                    York Stock Exchange (generally 4:00 p.m. Eastern time), your
                    trade date  is  the day  of  receipt. If  your  purchase  is
                    received after the close of the Exchange, your trade date is
                    the  next business day. Your shares are purchased at the net
                    asset value determined on your trade date.
                    In order to prevent lengthy processing delays caused by  the
                    clearing  of  foreign checks,  Vanguard  will only  accept a
                    foreign check which has been  drawn in U.S. dollars and  has
                    been  issued  by a  foreign bank  with a  U.S. correspondent
                    bank. The  name  of  the U.S.  correspondent  bank  must  be
                    printed on the face of the foreign check.
- --------------------------------------------------------------------------------
SELLING YOUR        You may withdraw any portion of the funds in your account by
SHARES              redeeming  shares at any time. You may initiate a request by
                    writing or  by  telephoning. Your  redemption  proceeds  are
                    normally  mailed within two business  days after the receipt
                    of the request in Good Order.
SELLING BY MAIL     Requests should  be  mailed to  VANGUARD  FINANCIAL  CENTER,
                    VANGUARD/TRUSTEES' EQUITY FUND, P.O. BOX 1120, VALLEY FORGE,
                    PA 19482. (For express or registered mail, send your request
                    to  Vanguard  Financial  Center,  Vanguard/Trustees'  Equity
                    Fund, 455 Devon Park Drive, Wayne, PA 19087.)
                    The redemption price of shares  will be the Portfolio's  net
                    asset  value next determined after Vanguard has received all
                    required documents in Good Order.
DEFINITION OF       GOOD ORDER means  that the request  includes the  following:
GOOD ORDER          1. The account number and Portfolio name.
                    2. The  amount of  the transaction (specified  in dollars or
                       shares).
</TABLE>
 
                                                                              21
<PAGE>
 
<TABLE>
<S>                 <C>
                    3. Signatures of all owners  exactly as they are  registered
                       on the account.
                    4. Any required signature guarantees.
                    5.  Other  supporting  legal  documentation  that  might  be
                    required, in the case  of estates, corporations, trusts  and
                       certain other accounts.
                    IF  YOU HAVE QUESTIONS ABOUT  THIS DEFINITION AS IT PERTAINS
                    TO YOUR REQUEST, PLEASE CALL OUR CLIENT SERVICES  DEPARTMENT
                    (1-800-662-2739).
                    ------------------------------------------------------------
SELLING BY          To  sell  shares by  telephone,  you or  your pre-authorized
TELEPHONE           representative may call  our Client  Services Department  at
                    1-800-662-2739.  The proceeds will  be sent to  you by mail.
                    Please   see   "Important   Information   About    Telephone
                    Transactions."
                    ------------------------------------------------------------
SELLING BY FUND     If  you select the Fund Express AUTOMATIC WITHDRAWAL option,
EXPRESS             money will be  automatically moved from  your Vanguard  Fund
Automatic           account  to your bank account  according to the schedule you
Withdrawal &        have selected. The SPECIAL  REDEMPTION option lets you  move
Special Redemption  money  from your  Vanguard account  to your  bank account on
                    your request.  You may  elect Fund  Express on  the  Account
                    Registration   Form   or  call   our   Investor  Information
                    Department (1-800-662-7447) for a Fund Express application.
                    ------------------------------------------------------------
SELLING BY          You may  sell  shares by  making  an exchange  into  another
EXCHANGE            Vanguard  Fund account. Please  see "Exchanging Your Shares"
                    for details.
                    ------------------------------------------------------------
IMPORTANT           Shares purchased by check may not be redeemed until  payment
REDEMPTION          for  the purchase  is collected,  which may  take up  to ten
INFORMATION         calendar days.  Your money  is invested  during the  holding
                    period.
                    ------------------------------------------------------------
DELIVERY OF         Redemption requests received by telephone prior to the close
REDEMPTION          of regular trading on the New York Stock Exchange (generally
PROCEEDS            4:00  p.m. Eastern time) are processed on the day of receipt
                    and  the  redemption  proceeds  are  normally  sent  on  the
                    following business day.
                    Redemption requests received by telephone after the close of
                    the  Exchange are  processed on  the business  day following
                    receipt and the  proceeds are  normally sent  on the  second
                    business day following receipt.
                    Redemption proceeds must be sent to you within seven days of
                    receipt of your request in Good Order.
                    If   you  experience   difficulty  in   making  a  telephone
                    redemption during  periods  of drastic  economic  or  market
                    changes,  your redemption request may  be made by regular or
                    express mail. It will be implemented at the net asset  value
                    next  determined  after your  request  has been  received by
                    Vanguard in  Good  Order. The  Fund  reserves the  right  to
                    revise  or terminate  the telephone  redemption privilege at
                    any time.
                    The Fund  may  suspend  the  redemption  right  or  postpone
                    payment  at times when the New York Stock Exchange is closed
                    or under any  emergency circumstances as  determined by  the
                    United States Securities and Exchange Commission.
</TABLE>
 
22
<PAGE>
 
<TABLE>
<S>                 <C>
                    If  the  Board  of  Trustees  determines  that  it  would be
                    detrimental to the  best interests of  the Fund's  remaining
                    shareholders  to  make payment  in  cash, the  Fund  may pay
                    redemption proceeds in whole or in part by a distribution in
                    kind of readily marketable securities.
                    ------------------------------------------------------------
VANGUARD'S AVERAGE  If you make a redemption from a qualifying account, Vanguard
COST STATEMENT      will send you an Average  Cost Statement which provides  you
                    with  the tax basis  of the shares  you redeemed. Please see
                    "Other Vanguard Services" for additional information.
                    ------------------------------------------------------------
MINIMUM ACCOUNT     Due to  the  relatively  high cost  of  maintaining  smaller
BALANCE             accounts,  the Fund reserves  the right to  redeem shares in
REQUIREMENT         any account  that is  below the  minimum initial  investment
                    amount  of $10,000. In  addition, if at  any time your total
                    investment in a Portfolio does not have a value of at  least
                    $1,000,  you may be notified that  the value of your account
                    is below the Fund's minimum account balance requirement. You
                    would  then  be  allowed  60  days  to  make  an  additional
                    investment  before the account is liquidated. Proceeds would
                    be  promptly   paid  to   the  shareholder.   This   minimum
                    requirement   does  not  apply  to  IRAs,  other  retirement
                    accounts  and  Uniform  Gifts/   Transfers  to  Minors   Act
                    accounts.
- --------------------------------------------------------------------------------
EXCHANGING          Should  your investment goals change,  you may exchange your
YOUR SHARES         shares of Vanguard/ Trustees' Equity Fund for those of other
EXCHANGING BY       available Vanguard Funds.
TELEPHONE           When exchanging shares by  telephone, please have ready  the
Call Client         Portfolio  name, account  number, Social  Security Number or
Services            Taxpayer Indentification Number listed  on the account,  and
(1-800-662-2739)    account  address. Requests for  telephone exchanges received
                    prior to the close of regular trading on the New York  Stock
                    Exchange (generally 4:00 p.m. Eastern time) are processed at
                    the close of business that same day. Requests received after
                    the  close of the  Exchange are processed  the next business
                    day. TELEPHONE  EXCHANGES  ARE  NOT ACCEPTED  INTO  OR  FROM
                    VANGUARD   BALANCED  INDEX  FUND,  VANGUARD  EXPLORER  FUND,
                    VANGUARD INDEX  TRUST, VANGUARD  INTERNATIONAL EQUITY  INDEX
                    FUND--EUROPEAN   AND   PACIFIC   PORTFOLIOS,   AND  VANGUARD
                    QUANTITATIVE PORTFOLIOS.  If  you experience  difficulty  in
                    making  a telephone  exchange, your exchange  request may be
                    made by regular or express mail, and it will be  implemented
                    at  the  closing net  asset value  on  the date  received by
                    Vanguard provided the request is received in Good Order.
                    ------------------------------------------------------------
EXCHANGING BY MAIL  Please be sure to include on your exchange request the  name
                    and  account number of  your current Portfolio,  the name of
                    the Fund you wish to exchange  into, the amount you wish  to
                    exchange,  and  the  signatures  of  all  registered account
                    holders. Send  your request  to VANGUARD  FINANCIAL  CENTER,
                    VANGUARD/TRUSTEES' EQUITY FUND, P.O. BOX 1120, VALLEY FORGE,
                    PA 19482. (For express or registered mail, send your request
                    to  Vanguard  Financial  Center,  Vanguard/Trustees'  Equity
                    Fund, 455 Devon Park Drive, Wayne, PA 19087.)
                    ------------------------------------------------------------
</TABLE>
 
                                                                              23
<PAGE>
 
<TABLE>
<S>                 <C>
                    Before you make an exchange, you should consider the
                    following:
IMPORTANT EXCHANGE
INFORMATION
                    -  Please  read  the  Fund's  prospectus  before  making  an
                      exchange.  For a copy and for answers to any questions you
                      may  have,  call   our  Investor  Information   Department
                      (1-800-662-7447).
                    -  An exchange  is treated as  a redemption  and a purchase.
                      Therefore, you could realize a taxable gain or loss on the
                      transaction.
                    - Exchanges are accepted only  if the registrations and  the
                      Taxpayer  Identification numbers  of the  two accounts are
                      identical.
                    - The shares to be exchanged must be on deposit and not held
                      in certificate form.
                    - New accounts are not  currently accepted in the  Vanguard/
                      Windsor Fund.
                    - The redemption price of shares redeemed by exchange is the
                      net   asset  value  next  determined  after  Vanguard  has
                      received the required documentation in Good Order.
                    - When opening a new account by exchange, you must meet  the
                      minimum investment requirement of the new Fund.
                    Every   effort  will  be  made   to  maintain  the  exchange
                    privilege. However, the Fund reserves the right to revise or
                    terminate its provisions, limit the amount of or reject  any
                    exchange, as deemed necessary, at any time.
- --------------------------------------------------------------------------------
EXCHANGE            The  Fund's  exchange privilege  is  not intended  to afford
PRIVILEGE           shareholders a way to  speculate on short-term movements  in
LIMITATIONS         the  market. Accordingly, in order  to prevent excessive use
                    of the exchange privilege  that may potentially disrupt  the
                    management  of the Fund and  increase transaction costs, the
                    Fund has established a policy of limiting excessive exchange
                    activity.
                    Exchange activity generally will not be deemed excessive  if
                    limited to TWO SUBSTANTIVE EXCHANGE REDEMPTIONS (AT LEAST 30
                    DAYS APART) from a Portfolio during any twelve month period.
                    Notwithstanding  these  limitations, the  Fund  reserves the
                    right to  reject any  purchase request  (including  exchange
                    purchases from other Vanguard portfolios) that is reasonably
                    deemed to be disruptive to efficient portfolio management.
- --------------------------------------------------------------------------------
IMPORTANT           The   ability   to   initiate   redemptions   (except   wire
INFORMATION         redemptions) and  exchanges  by telephone  is  automatically
ABOUT TELEPHONE     established  on your  account unless you  request in writing
TRANSACTIONS        that  telephone  transactions   on  your   account  not   be
                    permitted.
                    To   protect  your   account  from   losses  resulting  from
                    unauthorized or fraudulent telephone instructions,  Vanguard
                    adheres to the following security procedures:
                    1. SECURITY  CHECK. To  request a  transaction by telephone,
                    the caller must know (i) the name of the Portfolio; (ii) the
                       10-digit account number;  (iii) the exact  name in  which
                       the  account is registered; and  (iv) the Social Security
                       or Taxpayer Identification number listed on the account.
</TABLE>
 
24
<PAGE>
 
<TABLE>
<S>                 <C>
                    2. PAYMENT POLICY. The proceeds of any telephone  redemption
                    by  mail will be  made payable to  the registered shareowner
                       and mailed to the address of record, only.
                    Neither the Fund  nor Vanguard will  be responsible for  the
                    authenticity   of   transaction  instructions   received  by
                    telephone, provided that reasonable security procedures have
                    been  followed.   Vanguard   believes  that   the   security
                    procedures  described above ARE reasonable  and that if such
                    procedures are  followed,  YOU WILL  BEAR  THE RISK  OF  ANY
                    LOSSES  RESULTING FROM UNAUTHORIZED  OR FRAUDULENT TELEPHONE
                    TRANSACTIONS ON YOUR  ACCOUNT. If Vanguard  fails to  follow
                    reasonable  security procedures,  it may  be liable  for any
                    losses resulting from  unauthorized or fraudulent  telephone
                    transactions on your account.
- --------------------------------------------------------------------------------
TRANSFERRING        You may transfer the registration of any of your Fund shares
REGISTRATION        to  another person by completing a transfer form and sending
                    it to:  VANGUARD FINANCIAL  CENTER,  P.O. BOX  1110,  VALLEY
                    FORGE,  PA 19482. ATTENTION TRANSFER DEPARTMENT. The request
                    must be in Good Order.  BEFORE MAILING YOUR REQUEST,  PLEASE
                    CALL  OUR  CLIENT SERVICES  DEPARTMENT  (1-800-662-2739) FOR
                    FULL INSTRUCTIONS.
- --------------------------------------------------------------------------------
OTHER VANGUARD      For more  information about  any of  these services,  please
SERVICES            call our Investor Information Department at 1-800-662-7447.
STATEMENTS AND      Vanguard  will send  you a confirmation  statement each time
REPORTS             you initiate  a  transaction  in  your  account  except  for
                    checkwriting   redemptions   from   Vanguard   money  market
                    accounts. You  will  also receive  a  comprehensive  account
                    statement   at  the  end  of   each  calendar  quarter.  The
                    fourth-quarter  statement  will  be  a  year-end  statement,
                    listing  all  transaction activity  for the  entire calendar
                    year.
                    Vanguard's Average  Cost  Statement provides  you  with  the
                    average cost of shares redeemed from your account, using the
                    average   cost  single  category  method.  This  service  is
                    available for most taxable accounts opened since January  1,
                    1986.  In  general,  investors who  redeemed  shares  from a
                    qualifying Vanguard  account  may expect  to  receive  their
                    Average  Cost Statement  in February of  the following year.
                    Please call our Client Services department  (1-800-662-2739)
                    for information.
                    Financial  reports  on  the  Fund  will  be  mailed  to  you
                    semi-annually, according to the Fund's fiscal year-end.
VANGUARD DIRECT     With Vanguard's Direct Deposit Service, most U.S. Government
DEPOSIT SERVICE     checks  (including  Social  Security  and  military  pension
                    checks)  and  private  payroll checks  may  be automatically
                    deposited  into   your  Vanguard   Fund  account.   Separate
                    brochures and forms are available for direct deposit of U.S.
                    Government and private payroll checks.
VANGUARD AUTOMATIC  Vanguard's  Automatic  Exchange Service  allows you  to move
EXCHANGE SERVICE    money automatically among your  Vanguard Fund accounts.  For
                    instance,  the service can be  used to "dollar cost average"
                    from a money market portfolio into  a stock or bond fund  or
                    to contribute to an IRA or other retirement plan.
</TABLE>
 
                                                                              25
<PAGE>
 
<TABLE>
<S>                 <C>
VANGUARD FUND       Vanguard's Fund Express allows you to transfer money between
EXPRESS             your  Fund account and  your account at  a bank, savings and
                    loan association, or a credit union that is a member of  the
                    Automated  Clearing House  (ACH) system. You  may elect this
                    service  on  the  Account  Registration  Form  or  call  our
                    Investor  Information Department (1-800-662-7447) for a Fund
                    Express application.
                    The minimum amount that can  be transferred by telephone  is
                    $100.  However, if you have established one of the automatic
                    options, the minimum amount is $50. The maximum amount  that
                    can be transferred using any of the options is $100,000.
                    Special  rules  govern how  your  Fund Express  purchases or
                    redemptions are credited to your account. In addition,  some
                    services  of  Fund  Express  cannot  be  used  with specific
                    Vanguard Funds. For  more information, please  refer to  the
                    Vanguard Fund Express brochure.
VANGUARD DIVIDEND   Vanguard's  Dividend  Express  allows you  to  transfer your
EXPRESS             dividends and/or capital  gains distributions  automatically
                    from  your Fund account,  one business day  after the Fund's
                    payable date, to your  account at a  bank, savings and  loan
                    association,
                    or a credit union that is a member of the Automated Clearing
                    House (ACH)
                    network.   You  may  elect  this   service  on  the  Account
                    Registration Form or call
                    our Investor Information  Department (1-800-662-7447) for  a
                    Vanguard Dividend
                    Express application.
VANGUARD            Vanguard's  Tele-Account is a  convenient, automated service
TELE-ACCOUNT        that provides share price, price change and yield quotations
                    on Vanguard Funds through any TouchTone(TM) telephone.  This
                    service  also lets you obtain information about your account
                    balance,  your  last  transaction,  and  your  most   recent
                    dividend  or  capital gains  payment. To  contact Vanguard's
                    Tele-Account service, dial 1-800-ON-BOARD  (1-800-662-6273).
                    A  brochure  offering  detailed  operating  instructions  is
                    available   from   our   Investor   Information   Department
                    (1-800-662-7447).
- --------------------------------------------------------------------------------
</TABLE>
 
26
<PAGE>
 
OPQRS                                            OPQRS
- ---                                       P  R  O  S  P  E  C  T  U  S
THE VANGUARD GROUP                          APRIL 22, 1994
  OF INVESTMENT
  COMPANIES
Vanguard Financial Center
P.O. Box 2600
Valley Forge, PA 19482
INVESTOR INFORMATION
  DEPARTMENT:
1-800-662-7447 (SHIP)
CLIENT SERVICES
  DEPARTMENT:
1-800-662-2739 (CREW)
TELE-ACCOUNT FOR
  24-HOUR ACCESS:
1-800-662-6273 (ON BOARD)
TELECOMMUNICATION SERVICE FOR
  THE HEARING-IMPAIRED:
1-800-662-2738
TRANSFER AGENT:
The Vanguard Group, Inc.
Vanguard Financial Center
Valley Forge, PA 19482
                             (LOGO)
<PAGE>
                                     PART C
                         VANGUARD/TRUSTEES' EQUITY FUND
                (FORMERLY KNOWN AS "TRUSTEES' COMMINGLED FUND")
                               OTHER INFORMATION
 
ITEM 24. FINANCIAL STATEMENTS AND EXHIBITS
 
    (A)FINANCIAL STATEMENTS
 
    The  Registrant's financial statements for the year ended December 31, 1993,
including Price Waterhouse's report thereon,  are incorporated by reference,  in
the  Statement  of Additional  Information,  from the  Registrant's  1993 Annual
Report to Shareholders which has been  filed with the Commission. The  financial
statements included in the Annual Report are:
 
     1.Statement of Net Assets as of December 31, 1993
 
     2.Statement of Operations for the year ended December 31, 1993
 
     3.Statement  of Changes in Net Assets for the  each of the two years in the
       period ended December 31, 1993
 
     4.Financial Highlights  for each  of the  five years  in the  period  ended
       December  31, 1993 (also appearing in  the Prospectus along with previous
       years)
 
     5.Notes to Financial Statements
 
     6.Report of Independent Accountants
 
     (B)
       EXHIBITS
 
     1.Declaration of Trust**
 
     2.By-Laws of Registrant**
 
     3.Not Applicable
 
     4.Not Applicable
 
     5.Not Applicable
 
     6.Not Applicable
 
     7.Reference is made to the section entitled "Management of the Fund" in the
       Registrant's Statement of Additional Information
 
     8.Form of Custody Agreement**
 
     9.Form of Vanguard Service Agreement**
 
    10.Opinion of Counsel**
 
    11.Consent of Independent Accountants*
 
    12.Financial Statements -- reference is made to (a) above
 
    13.Not Applicable
 
    14.Not Applicable
 
    15.Not Applicable
 
    16.Schedule for Computation of Performance Quotations*
- ------------------------
 * Filed herewith
** Previously filed
 
                                                                             C-1
<PAGE>
ITEM 25. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT
 
    Registrant is not controlled by or under common control with any person. The
Officers of the Registrant, the 32 investment companies in The Vanguard Group of
Investment Companies and The  Vanguard Group, Inc.  are identical. Reference  is
made to the caption "Management of the Fund" in the Prospectus constituting Part
A  and in the  Statement of Additional  Information constituting Part  B of this
Registration Statement.
 
ITEM 26. NUMBER OF HOLDERS OF SECURITIES
 
    As of December 31, 1993 there  were 5,186 shareholders of the United  States
Portfolio and 37,927 shareholders of the International Portfolio.
 
ITEM 27. INDEMNIFICATION
 
    Reference is made to Article XI of Registrant's Declaration of Trust.
 
ITEM 28. BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER
 
    Reference  is made  to the caption  "Investment Advisers"  in the Prospectus
constituting Part A of this Registration Statement, and the caption  "Investment
Advisory Services" included in Part B of this Registration Statement.
 
    Listed  below  are the  officers  of Batterymarch  Financial  Management and
Geewax, Terker & Co. No officer has any affiliation with the Registrant.
 
    The business address of each officer of Batterymarch is 600 Atlantic Avenue,
Boston, Massachusetts 02210 and the business  address of each officer of  Geewax
Terker is 99 Starr Street, Phoenixville, Pa. 19960.
 
<TABLE>
<CAPTION>
                        BATTERYMARCH
- ------------------------------------------------------------
<S>                               <C>
                                  President and Sole
Dean F. LeBaron.................  Proprietor
Alan J. Strassman...............  Executive Vice President
Henry E. C. Schulman............  Senior Vice President
John W. Callahan................  Senior Vice President
Anne Marie Hoehn................  Senior Vice President
Dean Williams...................  Senior Vice President
Arnold S. Wood..................  Senior Vice President
Lawrence S. Speidell............  Senior Vice President
Jarrod W. Wilcox................  Senior Vice President
                                  Vice President and
Patricia J. O'Connor............  Treasurer
Donald F. O'Hara................  Vice President
Lynne Johnson...................  Senior Vice President
Gerald Chisholm.................  Senior Vice President
John F. McCormack...............  Vice President
 
<CAPTION>
                       GEEWAX TERKER
- ------------------------------------------------------------
<S>                               <C>
John J. Geewax..................  Partner
Bruce E. Terker.................  Partner
Rosemarie Hunter................  Senior Trader
Peter M. Schofield..............  Portfolio Manager
Manu Prattull Dattray...........  Portfolio Manager
</TABLE>
 
ITEM 29. PRINCIPAL UNDERWRITERS
 
    (a) None
    (b) Not Applicable
 
C-2
<PAGE>
ITEM 30. LOCATION OF ACCOUNTS AND RECORDS
 
    The  books, accounts and other documents required by Section 31(a) under the
Investment Company Act and the  rules promulgated thereunder will be  maintained
in  the  physical possession  of  Registrant; Registrant's  Transfer  Agent, The
Vanguard  Group,  Inc.  c/o  The   Vanguard  Financial  Center,  Valley   Forge,
Pennsylvania  19482; and the Registrant's Custodian, State Street Bank and Trust
Company, 225 Franklin Street, Boston, Massachusetts 02105.
 
ITEM 31. MANAGEMENT SERVICES
 
    Other than  the  Amended and  Restated  Funds' Service  Agreement  with  The
Vanguard Group, Inc. which was previously filed as Exhibit 9(c) and described in
Part  B hereof under "Management of the Fund;"  the Registrant is not a party of
any management-related service contract.
 
ITEM 32. UNDERTAKINGS
 
    Annual meetings of shareholders will not  be held except as required by  the
Investment  Company Act of 1940 ("1940 Act") or other applicable law. Registrant
hereby undertakes to comply with the provisions of Section 16(C) of the 1940 Act
in regard to  shareholders' rights  to call a  meeting of  shareholders for  the
purpose  of  voting on  the removal  of  Trustees and  to assist  in shareholder
communications in such matters, to the extent required by law.
 
    Registrant hereby undertakes to provide an Annual Report to Shareholders  or
prospective investors, free of charge, upon request.
 
                                                                             C-3
<PAGE>
                                   SIGNATURES
 
    Pursuant  to  the  requirements  of  the  Securities  Act  of  1933  and the
Investment Company  Act of  1940, the  Registrant certifies  that it  meets  the
requirements  for effectiveness pursuant to paragraph  (b) of Rule 485 under the
Securities Act  of  1933,  and  that it  has  duly  caused  this  Post-Effective
Amendment  to this  Registration Statement  to be  signed on  its behalf  by the
undersigned, thereunto duly  authorized, in  the Town  of Valley  Forge and  the
Commonwealth of Pennsylvania, on the 18th day of April, 1994.
 
                                          VANGUARD TRUSTEES' EQUITY FUND
 
                                          By         RAYMOND J. KLAPINSKY
 
                                            ------------------------------------
                                                   (RAYMOND J. KLAPINSKY)
                                                       JOHN C. BOGLE*
                                            CHAIRMAN AND CHIEF EXECUTIVE OFFICER
 
    Pursuant   to  the  requirements  of  the   Securities  Act  of  1933,  this
Post-Effective Amendment to the Registration Statement has been signed below  by
the following persons in the capacities and on the date indicated:
 
<TABLE>
<CAPTION>
                 SIGNATURES                           TITLE                    DATE
- --------------------------------------------  ----------------------  ----------------------
<C>                                           <S>                     <C>
     By:           RAYMOND J. KLAPINSKY       Chairman of the Board,      April 18, 1994
  ---------------------------------------       Trustee, and Chief
           (RAYMOND J. KLAPINSKY)               Executive Officer
               JOHN C. BOGLE*
     By:           RAYMOND J. KLAPINSKY       President and Trustee       April 18, 1994
  ---------------------------------------
           (RAYMOND J. KLAPINSKY)
              JOHN J. BRENNAN*
     By:           RAYMOND J. KLAPINSKY       Trustee                     April 18, 1994
  ---------------------------------------
           (RAYMOND J. KLAPINSKY)
          BARBARA B. HAUPTFUHRER*
     By:           RAYMOND J. KLAPINSKY       Trustee                     April 18, 1994
  ---------------------------------------
           (RAYMOND J. KLAPINSKY)
             BRUCE K. MACLAURY*
     By:           RAYMOND J. KLAPINSKY       Trustee                     April 18, 1994
  ---------------------------------------
           (RAYMOND J. KLAPINSKY)
             BURTON G. MALKIEL*
     By:           RAYMOND J. KLAPINSKY       Trustee                     April 18, 1994
  ---------------------------------------
           (RAYMOND J. KLAPINSKY)
           ALFRED M. RANKIN, JR.*
     By:           RAYMOND J. KLAPINSKY       Trustee                     April 18, 1994
  ---------------------------------------
           (RAYMOND J. KLAPINSKY)
            JAMES O. WELCH, JR.*
     By:           RAYMOND J. KLAPINSKY       Trustee                     April 18, 1994
  ---------------------------------------
           (RAYMOND J. KLAPINSKY)
            J. LAWRENCE WILSON*
     By:           RAYMOND J. KLAPINSKY       Treasurer and               April 18, 1994
  ---------------------------------------       Principal Financial
           (RAYMOND J. KLAPINSKY)               Officer and
             RICHARD F. HYLAND*                 Accounting Officer
</TABLE>
 
* By Power of Attorney. See File Number 2-14336, January 23, 1990. Incorporated
by Reference.
<PAGE>
                               INDEX TO EXHIBITS
 
<TABLE>
<S>                                                                                      <C>
Consent of Independent Accountants.....................................................  11
Schedule for Computation of Performance Quotations.....................................  16
</TABLE>
<PAGE>
   
                                     PART B
                         VANGUARD/TRUSTEES' EQUITY FUND
                (FORMERLY KNOWN AS "TRUSTEES' COMMINGLED FUND")
                      STATEMENT OF ADDITIONAL INFORMATION
                                 APRIL 22, 1994
    
 
   
    This  Statement is not a  prospectus but should be  read in conjunction with
the Fund's Prospectus  dated April 22,  1994. To obtain  the Prospectus,  please
call the Investor Information Department:
    
 
                                 1-800-662-7447
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                                          PAGE
                                                                         ------
<S>                                                                      <C>
Investment Objective and Policies......................................      1
Purchase of Shares.....................................................      5
Redemption of Shares...................................................      6
Yield and Total Return.................................................      7
Investment Limitations.................................................      7
Management of the Fund.................................................      9
Investment Advisory Services...........................................     11
Portfolio Transactions.................................................     14
Performance Measures...................................................     14
General Information....................................................     16
Financial Statements...................................................     17
</TABLE>
    
 
                       INVESTMENT OBJECTIVE AND POLICIES
 
    The  following policies supplement the investment objective and policies set
forth in the Fund's Prospectus:
 
FOREIGN INVESTMENTS
 
    Investors should  recognize that  investing  in foreign  companies  involves
certain special considerations which are not typically associated with investing
in  U.S.  companies.  Since  the  stocks  of  foreign  companies  are frequently
denominated in foreign  currencies, and  since the  International Portfolio  may
temporarily hold uninvested reserves in bank deposits in foreign currencies, the
International  Portfolio will be affected favorably or unfavorably by changes in
currency rates  and in  exchange control  regulations, and  may incur  costs  in
connection  with conversions between various currencies. The investment policies
of the International Portfolio permit it to enter into forward foreign  currency
exchange  contracts in order  to hedge the  Portfolio's holdings and commitments
against changes in the level of future currency rates. Such contracts involve an
obligation to purchase or sell a specific  currency at a future date at a  price
set at the time of the contact.
 
    As  foreign  companies  are  not generally  subject  to  uniform accounting,
auditing and financial  reporting standards  and practices  comparable to  those
applicable   to  domestic  companies,  there  may  be  less  publicly  available
information about  certain  foreign  companies than  about  domestic  companies.
Securities of some foreign companies are generally less liquid and more volatile
than  securities  of  comparable  domestic companies.  There  is  generally less
government supervision and  regulation of  stock exchanges,  brokers and  listed
companies  than  in  the  U.S.  In addition,  with  respect  to  certain foreign
countries, there is the possibility  of expropriation or confiscatory  taxation,
political  or social instability, or  diplomatic developments which could affect
U.S. investments in those countries.
 
                                                                             B-1
<PAGE>
    Although the International Portfolio will endeavor to achieve most favorable
execution costs in its portfolio transactions, fixed commissions on many foreign
stock exchanges  are  generally  higher  than  negotiated  commissions  on  U.S.
exchanges.  In  addition,  it  is  expected  that  the  expenses  for  custodian
arrangements of the Portfolio's foreign securities will be somewhat greater than
the expenses for the  custodian arrangements for  handling the U.S.  Portfolio's
securities of equal value.
 
    Certain  foreign  governments levy  withholding  taxes against  dividend and
interest income.  Although  in some  countries  a  portion of  these  taxes  are
recoverable,  the non-recovered portion of foreign withholding taxes will reduce
the income  received  from the  companies  comprising the  Fund's  International
Portfolio.  However, these foreign withholding taxes  are not expected to have a
significant impact on the International Growth Portfolio, since the  Portfolio's
investment  objective is to  seek long-term capital  appreciation and any income
should be considered incidental.
 
FUTURES CONTRACTS
 
    Each Portfolio may enter into futures contracts, options, options on futures
contracts and  foreign  currency  futures  contracts  for  several  reasons:  to
maintain cash reserves while remaining fully invested, to facilitate trading, to
reduce  transaction costs, or  to seek higher investment  returns when a futures
contract is  priced more  attractively than  the underlying  equity security  or
index.  Futures contracts provide for the future  sale by one party and purchase
by another party of  a specified amount  of a specific  security at a  specified
future  time and at a specified  price. Futures contracts which are standardized
as to maturity date and underlying  financial instrument are traded on  national
futures  exchanges.  Futures  exchanges  and  trading  are  regulated  under the
Commodity Exchange Act by the  Commodity Futures Trading Commission ("CFTC"),  a
U.S. Government Agency.
 
    Although  futures  contracts  by their  terms  call for  actual  delivery or
acceptance of the underlying securities, in most cases the contracts are  closed
out before the settlement date without the making or taking of delivery. Closing
out  an open futures position is done by taking an opposite position ("buying" a
contract which  has  previously been  "sold,"  "selling" a  contract  previously
purchased)  in  an  identical  contract  to  terminate  the  position. Brokerage
commissions are incurred when a futures contract is bought or sold.
 
    Futures traders are required to make a good faith margin deposit in cash  or
government  securities with a broker or  custodian to initiate and maintain open
positions  in  futures  contracts.  A  margin  deposit  is  intended  to  assure
completion  of the contract (delivery or  acceptance of the underlying security)
if it is not  terminated prior to the  specified delivery date. Minimal  initial
margin  requirements are established by the futures exchange and may be changed.
Brokers may establish deposit  requirements which are  higher than the  exchange
minimums.  Futures  contracts  are  customarily  purchased  and  sold  on margin
deposits that may range upward  from less than 5% of  the value of the  contract
being traded.
 
    After  a futures contract position  is opened, the value  of the contract is
marked to market daily. If the futures contract price changes to the extent that
the  margin  on  deposit  does  not  satisfy  margin  requirements,  payment  of
additional  "variation"  margin  will  be required.  Conversely,  change  in the
contract value  may reduce  the required  margin, resulting  in a  repayment  of
excess  margin to the contract holder. Variation margin payments are made to and
from the futures broker for as long as the contract remains open. The  Portfolio
expects to earn interest income on its margin deposits.
 
    The  Portfolios will not use futures and options for speculative purposes. A
Portfolio will use futures and options to simulate full investment in underlying
securities while retaining a cash balance for fund management purposes.
 
    Regulations of the CFTC  applicable to the Company  require that all of  its
futures  transactions constitute bona fide  hedging transactions. Each Portfolio
will only sell  futures contracts to  protect securities it  owns against  price
declines  or purchase contracts to  protect against an increase  in the price of
 
B-2
<PAGE>
securities it  intends to  purchase. As  evidence of  this hedging  interest,  a
Portfolio  expects that approximately 75% of its futures contract purchases will
be "completed"; that is, equivalent amounts of related securities will have been
purchased or are  being purchased  by the Portfolio  upon sale  of open  futures
contracts.
 
    Although  techniques other than  the sale and  purchase of futures contracts
could be  used  to  control the  exposure  of  the Portfolio  income  to  market
fluctuations,  the use  of futures  contracts may be  a more  effective means of
hedging this exposure.  While the  Portfolio will incur  commission expenses  in
both  opening  and closing  out futures  positions, these  costs are  lower than
transaction  costs  incurred  in  the  purchase  and  sale  of  U.S.  Government
securities.
 
RESTRICTIONS ON THE USE OF FUTURES CONTRACTS
 
    A  Portfolio will not enter into futures contract transactions to the extent
that, immediately thereafter,  the sum of  its initial margin  deposits on  open
contracts  exceeds 5% of  the market value  of the Portfolio's  total assets. In
addition, a Portfolio will not enter  into futures contracts to the extent  that
its  outstanding obligations to purchase  securities under these contracts would
exceed 20% of the Portfolio's total assets.
 
RISK FACTORS IN FUTURES TRANSACTIONS
 
    Positions in futures contracts may be  closed out only on an Exchange  which
provides a secondary market for such futures. However, there can be no assurance
that a liquid secondary market will exist for any particular futures contract at
any  specific time. Thus, it may not be possible to close a futures position. In
the event of adverse price movements, a Portfolio would continue to be  required
to make daily cash payments to maintain its required margin. In such situations,
if  a Portfolio has insufficient cash, it  may have to sell portfolio securities
to meet daily margin requirements at a time when it may be disadvantageous to do
so. In addition, a Portfolio may be required to make delivery of the instruments
underlying interest  rate futures  contracts it  holds. The  inability to  close
options  and futures positions also could have  an adverse impact on the ability
to effectively hedge its portfolio. A  Portfolio will minimize the risk that  it
will  be unable to  close out a  futures contract by  only entering into futures
which are traded on national futures exchanges and for which there appears to be
a liquid secondary market.
 
    The risk of  loss in  trading futures contracts  in some  strategies can  be
substantial,  due both  to the low  margin deposits required,  and the extremely
high degree of leverage involved in  futures pricing. As a result, a  relatively
small  price  movement  in  a  futures  contract  may  result  in  immediate and
substantial loss (as well as gain) to the investor. For example, if at the  time
of  purchase, 10% of the value of the Futures Contract is deposited as margin, a
subsequent 10% decrease in the value of  the futures contract would result in  a
total  loss  of the  margin deposit,  before any  deduction for  the transaction
costs, if the account  were then closed  out. A 15% decrease  would result in  a
loss  equal to 150% of  the original margin deposit  if the contract were closed
out. Thus, a  purchase or sale  of a futures  contract may result  in losses  in
excess  of the  amount invested  in the  contract. However,  because the futures
strategies of  the Portfolio  are  engaged in  only  for hedging  purposes,  the
Adviser  does not  believe that the  Portfolio is  subject to the  risks of loss
frequently associated with futures transactions. The Portfolio would  presumably
have  sustained comparable  losses if, instead  of the futures  contract, it had
invested in the underlying security and sold it after the decline.
 
    Utilization of futures transactions by  the Portfolio does involve the  risk
of imperfect or no correlation where the securities underlying futures contracts
have different maturities than the portfolio securities being hedged. It is also
possible  that a Portfolio could  both lose money on  futures contracts and also
experience a decline  in value of  its portfolio securities.  There is also  the
risk  of loss by a Portfolio of margin  deposits in the event of bankruptcy of a
broker with whom the  Portfolio has an  open position in  a futures contract  or
related  option.  Additionally,  investments in  futures  contracts  and options
involve risk that the investment advisers will incorrectly predict stock  market
and interest rate trends.
 
    Most  futures exchanges limit the amount of fluctuation permitted in futures
contract prices during  a single trading  day. The daily  limit establishes  the
maximum amount that the price of a futures contract
 
                                                                             B-3
<PAGE>
may  vary either up or down from the  previous day's settlement price at the end
of a trading session. Once the daily limit has been reached in a particular type
of contract, no trades may be made on that day at a price beyond that limit. The
daily limit governs  only price  movement during  a particular  trading day  and
therefore  does not  limit potential losses,  because the limit  may prevent the
liquidation of unfavorable positions. Futures contract prices have  occasionally
moved  to the daily limit for several consecutive trading days with little or no
trading,  thereby  preventing  prompt   liquidation  of  future  positions   and
subjecting some futures traders to substantial losses.
 
FEDERAL TAX TREATMENT OF FUTURES CONTRACTS
 
    Except  for transactions a Portfolio has identified as hedging transactions,
the Portfolio is required for Federal income tax purposes to recognize as income
for each taxable year its net  unrealized gains and losses on futures  contracts
as of the end of the year as well as those actually realized during the year. In
most  cases, any gain or  loss recognized with respect  to a futures contract is
considered to be 60% long-term capital  gain or loss and 40% short-term  capital
gain or loss, without regard to the holding period of the contract. Furthermore,
sales  of futures contracts which are intended  to hedge against a change in the
value of securities held by the Portfolio may affect the holding period of  such
securities  and, consequently, the nature of the gain or loss on such securities
upon disposition.
 
    In order  for a  Portfolio to  continue to  qualify for  Federal income  tax
treatment  as a regulated investment  company, at least 90%  of its gross income
for a taxable  year must  be derived  from qualifying  income; i.e.,  dividends,
interest,  income derived from loans  of securities, and gains  from the sale of
securities or foreign  currencies or other  income derived with  respect to  the
fund's  business of investing in securities.  In addition, gains realized on the
sale or other disposition of securities held for less than three months must  be
limited  to  less  than  30%  of the  Portfolio's  annual  gross  income.  It is
anticipated that any net gain realized from the closing out of futures contracts
will be considered gain from the sale of securities and therefore be  qualifying
income  for  purposes  of  the  90% requirement.  In  order  to  avoid realizing
excessive gains on securities held less than three months, the Portfolio may  be
required  to defer the closing out of  futures contracts beyond the time when it
would otherwise be  advantageous to  do so.  It is  anticipated that  unrealized
gains  on futures contracts, which have been  open for less than three months as
of the end  of the  Portfolio's fiscal  year and  which are  recognized for  tax
purposes,  will not be  considered gains on  sales of securities  held less than
three months for the purpose of the 30% test.
 
    The Portfolio will distribute to shareholders annually any net capital gains
which have been recognized for Federal income tax purposes (including unrealized
gains at the end  of the Portfolio's fiscal  year) on futures transaction.  Such
distributions  will be combined with distributions  of capital gains realized on
the Portfolio's other investments and shareholders will be advised on the nature
of the payments.
 
REPURCHASE AGREEMENTS
 
    Each Portfolio may  invest in repurchase  agreements with commercial  banks,
brokers  or dealers either for defensive purposes due to market conditions or to
generate income from  its excess  cash balances.  A repurchase  agreement is  an
agreement   under  which  the  Portfolio  acquires  a  money  market  instrument
(generally a security  issued by  the U.S. Government  or an  agency thereof,  a
banker's  acceptance or a certificate of deposit) from a commercial bank, broker
or dealer, subject  to resale to  the seller at  an agreed upon  price and  date
(normally,  the next business  day). A repurchase agreement  may be considered a
loan collateralized  by securities.  The resale  price reflects  an agreed  upon
interest  rate effective for the period the  instrument is held by the Portfolio
and is unrelated  to the interest  rate on the  underlying instrument. In  these
transactions,  the  securities  acquired  by  the  Portfolio  (including accrued
interest earned thereon) must have a total  value in excess of the value of  the
repurchase   agreement  and  are  held  by   the  Fund's  custodian  bank  until
repurchased.  In  addition,  the  Fund's  Board  of  Trustees  will  monitor   a
Portfolio's  repurchase  agreement  transactions  generally  and  will establish
guidelines  and  standards  for  review   by  the  investment  adviser  of   the
creditworthiness  of any bank, broker or  dealer party to a repurchase agreement
 
B-4
<PAGE>
   
with the Portfolio. No more than an aggregate of 15% of a Portfolio's assets, at
the time  of  investment,  will  be invested  in  repurchase  agreements  having
maturities  longer  than  seven  days  and in  securities  subject  to  legal or
contractual restrictions on resale, or for which there are no readily  available
market quotations.
    
 
    The use of repurchase agreements involves certain risks. For example, if the
other  party  to the  agreement  defaults on  its  obligation to  repurchase the
underlying security at a time when the  value of the security has declined,  the
Portfolio  may incur a loss upon disposition of the security. If the other party
to the agreement becomes insolvent and subject to liquidation or  reorganization
under  the  Bankruptcy  Code or  other  laws,  a court  may  determine  that the
underlying security is  collateral for a  loan by the  Portfolio not within  the
control  of the Portfolio and therefore the realization by the Portfolio on such
collateral may  be  automatically  stayed.  Finally, it  is  possible  that  the
Portfolio  may  not  be able  to  substantiate  its interest  in  the underlying
security and may  be deemed  an unsecured  creditor of  the other  party to  the
agreement.  While the Fund's management acknowledges these risks, it is expected
that they can be controlled through careful monitoring procedures.
 
LENDING OF SECURITIES
 
   
    Each Portfolio  may  lend  its  investment securities  on  a  short-term  or
long-term  basis  to  qualified  institutional  investors  who  need  to  borrow
securities in order  to complete  certain transactions, such  as covering  short
sales,   avoiding  failures  to  deliver   securities  or  completing  arbitrage
operations. By  lending  its  investment securities,  a  Portfolio  attempts  to
increase  its net investment income through the receipt of interest on the loan.
Any gain or loss in the market  price of the securities loaned that might  occur
during  the term  of the loan  would be for  the account of  the Portfolio. Each
Portfolio may  lend its  investment securities  to qualified  brokers,  dealers,
banks  or other financial institutions, so long  as the terms, the structure and
the aggregate amount  of such  loans are  not inconsistent  with the  Investment
Company  Act of  1940, or  the Rules and  Regulations or  interpretations of the
Securities  and  Exchange  Commission   (the  "Commission")  thereunder,   which
currently  require that (a) the borrower  pledge and maintain with the Portfolio
collateral consisting  of cash,  an irrevocable  letter of  credit issued  by  a
domestic  U.S. bank,  or securities  issued or  guaranteed by  the United States
Government having a value at  all times not less than  100% of the value of  the
securities loaned, (b) the borrower add to such collateral whenever the price of
the securities loaned rises (i.e., the borrower "marks to the market" on a daily
basis),  (c) the  loan be made  subject to  termination by the  Portfolio at any
time, and (d) the Portfolio receive  reasonable interest on the loan (which  may
include  the  Portfolio's  investing  any cash  collateral  in  interest bearing
short-term investments),  any  distribution on  the  loaned securities  and  any
increase  in  their market  value. Loan  arrangements made  by a  Portfolio will
comply with all other applicable regulatory requirements, including the rules of
the New York Stock Exchange, which  rules presently require the borrower,  after
notice,  to redeliver the  securities within the normal  settlement time of five
business  days.   All   relevant   facts  and   circumstances,   including   the
creditworthiness  of the  broker, dealer or  institution, will  be considered in
making decisions with respect to the lending of securities, subject to review by
the Fund's Board of Trustees.
    
 
    At the present  time, the  Staff of  the Commission  does not  object if  an
investment  company pays  reasonable negotiated  fees in  connection with loaned
securities, so  long as  such  fees are  set forth  in  a written  contract  and
approved  by the investment company's  Directors (Trustees). In addition, voting
rights may pass with the loaned securities,  but if a material event will  occur
affecting  an investment  on loan,  the loan must  be called  and the securities
voted.
 
                               PURCHASE OF SHARES
 
    The purchase price of shares of each Portfolio of the Fund is the net  asset
value  next  determined after  the order  is  received. The  net asset  value is
calculated as of the close of regular trading on the New York Stock Exchange  on
each  day the Exchange is open for business, and on any other day on which there
is sufficient  trading  in a  Portfolio's  investment securities  to  materially
affect the Portfolio's net asset value
 
                                                                             B-5
<PAGE>
per share. An order received prior to the close of the Exchange will be executed
at  the price computed on  the date of receipt; and  an order received after the
close of the Exchange will be executed at the price computed on the next day the
Exchange is open.
 
    Each Portfolio reserves the right in its sole discretion (i) to suspend  the
offering  of its shares, (ii) to reject  purchase orders when in the judgment of
management such rejection  is in the  best interest  of the Fund,  and (iii)  to
reduce  or waive the minimum for  initial and subsequent investments for certain
fiduciary accounts such as employee  benefit plans or under circumstances  where
certain economies can be achieved in sales of a Portfolio's shares.
 
                              REDEMPTION OF SHARES
 
    Each  Portfolio may  suspend redemption privileges  or postpone  the date of
payment (i) during any  period that the  New York Stock  Exchange is closed,  or
trading  on  the Exchange  is  restricted as  determined  by the  Securities and
Exchange Commission (the "Commission"), (ii) during any period when an emergency
exists as defined by the rules of the Commission as a result of which it is  not
reasonably  practicable for a Portfolio to dispose of securities owned by it, or
fairly to determine the value of its assets, and (iii) for such other periods as
the Commission may permit.
 
    The Fund  has made  an  election with  the Commission  to  pay in  cash  all
redemptions  requested by any shareholder of record limited in amount during any
90-day period to the lesser of $250,000 or  1% of the net assets of the Fund  at
the  beginning of such period. Such  commitment is irrevocable without the prior
approval of the  Commission. Redemptions in  excess of the  above limits may  be
paid  in whole or in part, in investment  securities or in cash, as the Trustees
may deem advisable;  however, payment  will be made  wholly in  cash unless  the
Trustees  believe that economic or market conditions exist which would make such
a practice detrimental  to the best  interests of the  Fund. If redemptions  are
paid  in investment securities, such  securities will be valued  as set forth in
the Prospectus  under  "The Share  Price  of  Each Portfolio"  and  a  redeeming
shareholder  would  normally  incur  brokerage expenses  if  he  converted these
securities to cash.
 
    No charge is made by a Portfolio for redemptions. Any redemption may be more
or less  than  the shareholder's  cost  depending on  the  market value  of  the
securities held by the Portfolio.
 
    SIGNATURE  GUARANTEES.  To protect your  account, the Fund and Vanguard from
fraud, signature  guarantees are  required  for certain  redemptions.  Signature
guarantees  enable  the  Fund to  verify  the  identity of  the  person  who has
authorized a redemption from your account. SIGNATURE GUARANTEES ARE REQUIRED  IN
CONNECTION  WITH: (1)  REDEMPTIONS INVOLVING  MORE THAN  $25,000 ON  THE DATE OF
RECEIPT BY VANGUARD OF ALL NECESSARY DOCUMENTS; (2) ALL REDEMPTIONS,  REGARDLESS
OF  THE AMOUNT INVOLVED, WHEN THE PROCEEDS ARE  TO BE PAID TO SOMEONE OTHER THAN
THE REGISTERED OWNER(S) AND/OR TO AN  ADDRESS OTHER THAN THE ADDRESS OF  RECORD;
AND  (3)  SHARE  TRANSFER REQUESTS.  These  requirements are  not  applicable to
redemptions in the  Fund's Keogh,  IRA, and  403(b) plans  except in  connection
with:  (1) distributions made when the proceeds  are to be paid to someone other
than the plan  participant; (2)  certain authorizations to  effect exchanges  by
telephone;  and (3)  when proceeds  are to be  wired. These  requirements may be
waived by the Fund in certain instances.
 
    A guarantor must be  a bank, a  trust company, a member  firm of a  domestic
stock exchange, or a foreign branch of any of the foregoing. NOTARIES PUBLIC ARE
NOT ACCEPTABLE GUARANTORS.
 
    The  signature guarantees must appear either: (1) on the written request for
redemption; (2) on a  separate instrument for  assignment ("stock power")  which
should  specify the total number  of shares to be redeemed;  or (3) on all stock
certificates tendered for redemption  and, if shares held  by Vanguard are  also
being redeemed, on the letter or stock power.
 
B-6
<PAGE>
                             YIELD AND TOTAL RETURN
 
   
    The  yield of  the U.S. Portfolio  of the Fund  for the 30  day period ended
December 31, 1993 was 1.03%.
    
 
   
    The average  annual total  return of  each  Portfolio of  the Fund  for  the
following periods ending December 31, 1993 is set forth below:
    
 
   
<TABLE>
<CAPTION>
                                  1 YEAR ENDED   5 YEARS ENDED  10 YEARS ENDED
                                    12/31/93       12/31/93        12/31/93
                                  -------------  -------------  ---------------
<S>                               <C>            <C>            <C>
U.S. Portfolio..................     +17.24%        +11.16%         +11.24%
International Portfolio.........     +30.49%        +7.68%          +16.16%
</TABLE>
    
 
   
    Total  return is computed by finding  the average compounded rates of return
over the periods set forth above that would equate an initial amount invested at
the beginning of the periods to the ending redeemable value of the investment.
    
 
                             INVESTMENT LIMITATIONS
 
   
    Each Portfolio of  the Fund is  subject to the  following limitations  which
(except as indicated otherwise below) may not be changed without the approval of
at  least a  majority of  the outstanding voting  securities (as  defined in the
Investment Company Act of 1940) of the Fund. A Portfolio will not:
    
   
           (1) Borrow money except that the Portfolio may borrow from banks  (or
       through  reverse repurchase agreements), for  temporary or emergency (not
       leveraging) purposes, including the meeting of redemption requests  which
       might  otherwise require  the untimely  disposition of  securities, in an
       amount not  exceeding 10%  of the  value of  the Portfolio's  net  assets
       (including  the amount borrowed and the  value of any outstanding reverse
       repurchase agreements)  at  the  time the  borrowing  is  made.  Whenever
       borrowings  exceed 5%  of the  value of  the Portfolio's  net assets, the
       Portfolio will not make any additional investments;
    
 
           (2) With respect to  75% of the value  of its total assets,  purchase
       the  securities of  any issuer (except  obligations of  the United States
       government and its instrumentalities) if as a result the Portfolio  would
       hold more than 10% of the outstanding voting securities of the issuer, or
       more  than  5% of  the value  of  the Portfolio's  total assets  would be
       invested in the securities of such issuer;
 
           (3) Invest in companies for the purpose of exercising control;
 
           (4) Invest in securities of other investment companies, except as may
       be acquired as a part of a merger, consolidation or acquisition of assets
       or otherwise to  the extent  permitted by  Section 12  of the  Investment
       Company  Act  of  1940.  The Portfolio  will  invest  only  in investment
       companies  which  have  investment  objectives  and  investment  policies
       consistent with those of the Portfolio;
 
           (5) Engage in the business of underwriting securities issued by other
       persons,  except  to the  extent that  the  Portfolio may  technically be
       deemed to be an underwriter under the Securities Act of 1933, as amended,
       in disposing of portfolio securities;
 
           (6) Purchase or otherwise acquire any security if, as a result,  more
       than  15% of  its net  assets would  be invested  in securities  that are
       illiquid (including the Fund's investment in The Vanguard Group, Inc., as
       discussed on page 8);
 
           (7) Purchase or sell  real estate although it  may purchase and  sell
       securities of companies which deal in real estate or interests therein;
 
           (8) Purchase securities on margin or sell any securities short except
       that each Portfolio may invest in stock futures contracts, stock options,
       options on stock futures contracts and foreign currency futures contracts
       to  the extent that  not more than  five percent of  its total assets are
       required as margin deposit to secure obligations under futures  contracts
       and  not more than  twenty percent of  its total assets  are committed to
       such transactions at any time;
 
                                                                             B-7
<PAGE>
           (9) Invest more  than 5%  of the  value of  the total  assets of  the
       Portfolio  at the  time of  investment in  the securities  of any issuers
       which have  records  of  less than  three  years'  continuous  operation,
       including  the operation of any predecessor, but this limitation does not
       apply to securities issued or guaranteed as to interest and principal  by
       the United States Government or its agencies or instrumentalities;*
 
          (10)  Purchase  or  retain  any  security  if  any  officer, director,
       security holder of the  issuer of such  security is at  the same time  an
       officer,  director, or  investment adviser of  the Fund, or  a partner or
       officer or director of such investment adviser and owns beneficially more
       than 1/2 of 1 percent of the securities of such issuer provided that  the
       aggregate  holdings of such securities of all such persons so owning more
       than 1/2 of  1 percent  of the outstanding  stock or  securities of  such
       issuer exceed 5% of the outstanding stock or securities of such issuer;*
 
          (11)  Make loans  except by  (i) purchasing a  portion of  an issue of
       bonds, debentures  or  similar  obligations  which  are  either  publicly
       distributed  or  customarily purchased  by institutional  investors, (ii)
       entering into repurchase agreements,  provided, however, that  repurchase
       agreements  maturing in  more than  seven days,  together with securities
       which do not have  readily available market  quotations, will not  exceed
       10%  of a Portfolio's  total assets, and (iii)  lending its securities as
       provided under "Investment Objective and Policies";
 
          (12) Purchase or  write put  or call  options except  as specified  in
       "(8)" above;
 
          (13)  Invest in interests in oil, gas, or other mineral exploration or
       development programs;
 
          (14) Purchase or  sell commodities  on commodity  contracts except  as
       specified in "(8)" above; and
 
          (15) Concentrate its investments in a particular industry, although it
       may  invest up to 25% of the  value of the Portfolio's total assets taken
       at market in securities of issuers  all of which conduct their  principal
       business activities in the same industry.
 
       *  These limitations are not fundamental  and therefore may be changed by
       the Fund's Trustees without a shareholder vote.
 
   
    Notwithstanding these limitations, the  Fund may own all  or any portion  of
the  securities  of, or  make  loans to,  or contribute  to  the costs  or other
financial requirements of any company which will be wholly owned by the Fund and
one or more other investment companies and is primarily engaged in the  business
of  providing, at-cost,  management, administrative  or related  services to the
Fund and other investment companies. See "MANAGEMENT OF THE FUND" on page 9.
    
 
    The above-mentioned  investment  limitations  are  considered  at  the  time
investment securities are purchased.
 
B-8
<PAGE>
                             MANAGEMENT OF THE FUND
 
TRUSTEES AND OFFICERS
 
    The  Officers  of  the  Fund  manage  its  day  to  day  operations  and are
responsible to the Fund's Board of Trustees. The Trustees set broad policies for
the Fund and choose its Officers. Following  is a list of Trustees and  Officers
of the Fund and a statement of their present positions and principal occupations
during  the past  five years.  The mailing  address of  the Fund's  Trustees and
Officers is Post Office Box 876, Valley Forge, PA 19482.
 
JOHN C. BOGLE, CHAIRMAN, CHIEF EXECUTIVE OFFICER AND TRUSTEE*
  Chairman, Chief Executive Officer, and Director of The Vanguard Group, Inc.,
  and of each of the investment companies in The Vanguard Group. Director of The
  Mead Corporation and General Accident Insurance.
 
JOHN J. BRENNAN, PRESIDENT & TRUSTEE*
  President and Director of The Vanguard Group, Inc., and of each of the other
  investment companies in The Vanguard Group.
 
ROBERT E. CAWTHORN, TRUSTEE
  Chairman and Chief Executive Officer, Rhone-Poulenc Rorer, Inc.; Director of
  Immune Response Corp. and Sun Company, Inc.; Trustee, Universal Health Realty
  Income Trust.
 
BARBARA BARNES HAUPTFUHRER, TRUSTEE
  Director of The Great Atlantic and Pacific Tea Company, Alco Standard Corp.,
  Raytheon Company, Knight-Ridder, Inc., and Massachusetts Mutual Life Insurance
  Co.
 
BRUCE K. MACLAURY, TRUSTEE
  President, The Brookings Institution; Director of Dayton Hudson Corporation.
  American Express Bank Ltd., and St. Paul Companies, Inc.
 
BURTON G. MALKIEL, TRUSTEE
  Chemical Bank Chairman's Professor of Economics, Princeton University;
  Director of Prudential Insurance Co. of America, Amdahl Corporation, Baker
  Fentress & Co., Jeffrey Co., and The Southern New England Telephone Company.
 
   
ALFRED M. RANKIN, JR., TRUSTEE
  President, Chief Executive Officer and Director of NACCO Industries Inc.;
  Director of The BFGoodrich Company, The Standard Products Company and The
  Reliance Electric Company.
    
 
JOHN C. SAWHILL, TRUSTEE
  President and Chief Executive Officer, The Nature Conservancy; formerly,
  Director and Senior Partner, McKinsey & Co.; President, New York University;
  Director of Pacific Gas and Electric Company and NACCO Industries.
 
JAMES O. WELCH, JR., TRUSTEE
  Retired Chairman of Nabisco Brands Inc., retired Vice Chairman and Director of
  RJR Nabisco; Director of TECO Energy, Inc.
 
J. LAWRENCE WILSON, TRUSTEE
  Chairman and Director of Rohm & Haas Company; Director of Cummins Engine
  Company and Vanderbilt University; Trustee of the Culver Educational
  Foundation.
 
   
RAYMOND J. KLAPINSKY, SECRETARY*
  Senior Vice President and Secretary of The Vanguard Group, Inc.; Secretary of
  each of the investment companies in The Vanguard Group.
    
 
RICHARD F. HYLAND, TREASURER*
  Treasurer of The Vanguard Group, Inc. and of each of the investment companies
  in The Vanguard Group.
 
KAREN E. WEST, CONTROLLER*
  Vice President of The Vanguard Group, Inc.; Controller of each of the
  investment companies in The Vanguard Group.
 
- ------------
* Officers of  the Fund are  "interested persons" as  defined in the  Investment
Company Act of 1940.
 
THE VANGUARD GROUP
 
    Vanguard/Trustees'  Equity  Fund  is  a  member  of  The  Vanguard  Group of
Investment Companies.  Through  their  jointly-owned  subsidiary,  The  Vanguard
Group,  Inc. ("Vanguard"), the Fund  and the other Funds  in the Group obtain at
cost  virtually   all  of   their  corporate   management,  administrative   and
distribution services. Vanguard also provides investment advisory services on an
at-cost basis to several of the Vanguard Funds.
 
    Vanguard  employs  a  supporting  staff  of  management  and  administrative
personnel needed  to  provide the  requisite  services  to the  Funds  and  also
furnishes the Funds with necessary office space, furnishings and equipment. Each
Fund  pays its share  of Vanguard's net  expenses which are  allocated among the
Funds under methods approved by the Board of Trustees (Directors) of each  Fund.
In  addition, each Fund bears  its own direct expenses,  such as legal, auditing
and custodian fees.
 
   
    The Vanguard  Group was  established  and operates  under a  Funds'  Service
Agreement  which was  approved by  the shareholders  of each  of the  Funds. The
amounts which each of the Funds have invested
    
 
                                                                             B-9
<PAGE>
   
are  adjusted  from  time  to  time  in  order  to  maintain  the  proportionate
relationship  between each  Fund's relative net  assets and  its contribution to
Vanguard's capital. At December  31, 1993, the Fund  had contributed capital  of
$168,000  to Vanguard, representing .8% of Vanguard's capitalization. The Funds'
Service Agreement provides as follows: (a)  each Vanguard Fund may invest up  to
.40%  of its current assets in Vanguard, and (b) there is no other limitation on
the amount that each Vanguard Fund may contribute to Vanguard's capitalization.
    
 
   
    MANAGEMENT.  Corporate management  and administrative services include:  (1)
executive  staff; (2)  accounting and financial;  (3) legal  and regulatory; (4)
shareholder  account  maintenance;  (5)  monitoring  and  control  of  custodian
relationships;  (6)  shareholder reporting;  and  (7) review  and  evaluation of
advisory and other services provided to  the Funds by third parties. During  the
fiscal  year ended December 31, 1993, the  Fund's share of Vanguard's actual net
costs of operation relating to management and administrative services (including
transfer agency) totaled approximately $1,314,000.
    
 
    DISTRIBUTION.  Vanguard provides  all distribution and marketing  activities
for  the  Funds in  the Group.  Vanguard  Marketing Corporation,  a wholly-owned
subsidiary of  Vanguard,  acts  as  Sales  Agent for  shares  of  the  Funds  in
connection  with any sales made directly to  investors in the states of Florida,
Missouri, New York, Ohio, Texas and such other states as it may be required.
 
   
    The  principal  distribution  expenses  are  for  advertising,   promotional
materials  and  marketing  personnel.  Distribution  services  may  also include
organizing and  offering to  the public,  from time  to time,  one or  more  new
investment  companies which will become members  of the Group. The Directors and
Officers of Vanguard determine the amount  to be spent annually on  distribution
activities,  the manner  and amount  to be  spent on  each Fund,  and whether to
organize new investment companies.
    
 
   
    One half of the distribution expenses of a marketing and promotional  nature
is allocated among the Funds based upon their relative net assets. The remaining
one  half of these expenses is allocated  among the Funds based upon each Fund's
sales for the preceding 24 months relative to the total sales of the Funds as  a
Group,   provided,  however,  that   no  Fund's  aggregate   quarterly  rate  of
contribution for distribution  expenses of  a marketing  and promotional  nature
shall  exceed 125% of the  average distribution expense rate  for the Group, and
that no Fund shall incur annual distribution expenses in excess of 20/100 of  1%
of  its average month-end net assets. During  the fiscal year ended December 31,
1993, the  Fund paid  approximately  $202,000 of  the Group's  distribution  and
marketing expenses.
    
 
   
    INVESTMENT  ADVISORY SERVICES.   Vanguard also  provides investment advisory
services to Vanguard Money Market Reserves, Vanguard Institutional Money  Market
Portfolio,  Vanguard  Municipal  Bond  Fund,  Vanguard  Admiral  Funds,  several
Portfolios of Vanguard Fixed Income  Securities Fund, Vanguard's State  Tax-Free
Funds,  Vanguard Index Trust, Vanguard International Equity Index Fund, Vanguard
Balanced Index  Fund, Vanguard  Bond Index  Fund, Vanguard  Institutional  Index
Fund,  several Portfolios of  Vanguard Variable Insurance Fund  and a portion of
Vanguard/Windsor II,  as  well  as  several  indexed  separate  accounts.  These
services are provided on an at-cost basis from a money management staff employed
directly by Vanguard. The compensation and other expenses of this staff are paid
by the Funds utilizing these services.
    
 
    REMUNERATION  OF TRUSTEES AND OFFICERS.  The  Fund pays each Trustee, who is
not also an Officer, an  annual fee plus travel  and other expenses incurred  in
attending Board meetings. The Fund's Officers and employees are paid by Vanguard
which, in turn, is reimbursed by the Fund, and each other Fund in the Group, for
its  proportionate  share of  Officers' and  employees' salaries  and retirement
benefits.
 
   
    During the fiscal year ended December 31, 1993, the Fund paid  approximately
$3,000  in  fees  and  expenses to  its  "non-interested"  Trustees.  The Fund's
proportionate share  of remuneration  paid by  Vanguard (and  reimbursed by  the
Fund)  during the  fiscal year  to all  Officers of  the Fund,  as a  group, was
approximately $1,833,000.
    
 
    Trustees who are not Officers are  paid an annual fee upon retirement  equal
to  $1,000 for each  year of service  on the Board  up to a  maximum of $15,000.
Under its retirement plan, Vanguard contributes
 
B-10
<PAGE>
   
annually an amount equal to 10% of each Officer's annual compensation plus  5.7%
of  that part of  the eligible Officer's  compensation during the  year, if any,
that exceeds the  Social Security Taxable  Wage Base then  in effect. Under  its
thrift  plan, all eligible officers are  permitted to make pre-tax contributions
in an amount equal to 4% of total compensation which are matched by Vanguard  on
a 100% basis. The Fund's proportionate share of retirement contributions made by
Vanguard  under  its  retirement and  thrift  plans  on behalf  of  all eligible
Officers of the Fund, as a group, during the 1993 fiscal year was  approximately
$4,910.
    
 
                          INVESTMENT ADVISORY SERVICES
 
    The  investment  adviser to  the Fund's  International  Portfolio is  a sole
proprietorship doing business under the name "Batterymarch Financial Management"
("Batterymarch"), 600 Atlantic Avenue, Boston, Massachusetts 02210. Batterymarch
provides investment management services to numerous institutional accounts, such
as corporate pension plans, endowment  funds and individual investors. Under  an
Investment  Advisory Agreement ("Agreement")  with the Fund,  dated May 1, 1993,
Batterymarch, subject to  the control  and supervision  of the  Fund's Board  of
Trustees and in conformance with the stated investment objective and policies of
the  International  Portfolio, manages  the investment  and reinvestment  of the
assets of the International Portfolio. In this regard, it is the  responsibility
of Batterymarch to make investment decisions for the International Portfolio and
to place the Portfolio's purchase and sale orders for investment securities.
 
    As  compensation  for  the  services  rendered  by  Batterymarch  under  the
Agreement and the  assumption by  Batterymarch of the  expenses related  thereto
(other than the cost of securities purchased for the International Portfolio and
the  taxes and  brokerage commissions,  if any,  payable in  connection with the
purchase and/or  sale  of such  securities),  the International  Portfolio  pays
Batterymarch  an advisory fee calculated by applying various percentage rates to
the aggregate  average  net assets  of  the International  Portfolio,  and  then
apportioning  that  fee to  the International  Portfolio,  according to  its net
assets. The fee schedule is as follows:
 
<TABLE>
<CAPTION>
NET ASSETS                                                               RATE
- -----------------------------------------------------------------------  -----
<S>                                                                      <C>
First $10 million......................................................  0.85%
Next $10 million.......................................................  0.45%
Next $30 million.......................................................  0.35%
Next $450 million......................................................  0.15%
Over $500 million......................................................  0.12%
</TABLE>
 
   
    Although the  base  advisory  fee rate  on  the  first $10  million  of  the
International  Portfolio's net assets is in excess  of the fee rate paid by many
other mutual funds, it is substantially reduced as the value of the  Portfolio's
assets  increases. For example, it will result  in an effective fee rate of .59%
at $25  million of  assets, .47%  at $50  million of  assets, and  .31% at  $100
million  of assets. During the years ended December 31, 1991, 1992 and 1993, the
International Portfolio paid Batterymarch advisory fees totaling $1,252,000 (.14
of 1% of average net assets), $1,246,000  (.15 of 1% of average net assets)  and
$1,326,000 (.16 of 1% of average net assets), respectively.
    
 
   
    Until  April 1, 1992  Batterymarch served as investment  adviser to the U.S.
Portfolio according to the terms  of the fee schedule  set forth above. For  the
fiscal  years  ended  December  31,  1991  and  1992  the  U.S.  Portfolio  paid
Batterymarch advisory fees totaling $245,000 (.22  of 1% of average net  assets)
and $325,000 (.35 of 1% of average net assets), respectively.
    
 
    On  April 1,  1992, the U.S.  Portfolio entered into  an Investment Advisory
Agreement with  Geewax,  Terker  &  Co.  ("Geewax  Terker"),  99  Starr  Street,
Phoenixville, Pa. 19460. Under the terms of the Agreement Geewax Terker, subject
to  the  control  and  supervision  of  the  Fund's  Board  of  Trustees  and in
conformance with  the  Fund's investment  objective  and policies,  manages  the
investment  and reinvestment of the assets of the Fund's U.S. Portfolio. In this
regard  it  is  the   responsibility  of  Geewax   Terker  to  make   investment
 
                                                                            B-11
<PAGE>
   
decisions  for the U.S. Portfolio and to place the Portfolio's purchase and sale
orders for investment securities. For the  fiscal year ended December 31,  1993,
U.S.  Portfolio paid Geewax advisory fees totaling $507,000 .59 of 1% of average
net assets.
    
 
    As compensation  for  the  services  rendered by  Geewax  Terker  under  the
Agreement  and the assumption  by Geewax Terker of  the expenses related thereto
(other than the  cost of securities  purchased for the  U.S. Portfolio) and  the
taxes  and  brokerage  commissions,  if any,  payable  in  connection  with such
transactions), the U.S. Portfolio pays Geewax Terker an investment advisory  fee
which represents a percentage of the Portfolio's average net assets adjusted for
the  investment performance of the Portfolio relative  to that of the Standard &
Poor's 500 Composite Stock Price Index  ("S&P 500") over the preceding  36-month
period as follows:
 
<TABLE>
<CAPTION>
THREE YEAR PERFORMANCE
DIFFERENTIAL VS. THE S&P 500                                            ANNUAL FEE RATE
- ----------------------------------------------------------------------  ---------------
<S>                                                                     <C>
+4.5% points or more above............................................       0.60%
+2.25% points but less than
+4.5% points above....................................................       0.40%
Less than +2.25% points above.........................................       0.20%
</TABLE>
 
    Until  the quarter  ending March 31,  1993, the investment  advisory fee was
calculated according to the following transition rules:
 
           (a)  April 1, 1992 through December 31, 1992. For the quarters ending
       on or  prior to  December 31,  1992, the  incentive/penalty fee  was  not
       operable.  The advisory fee was payable at the annual rate of .40% of the
       U.S. Portfolio's net assets.
 
           (b)  For the calendar quarter ended March 31, 1993 if the  investment
       performance  of the  Portfolio for the  12 consecutive  months then ended
       exceeded the investment performance of the S&P 500 by:
 
                (i) less than .75%,  the fee rate payable  to Geewax Terker  was
           .05% (annual rate of .20%); or
 
               (ii)  not less  than .75%  but not more  than 1.5%,  the fee rate
           payable to Geewax Terker was .10% (annual rate of .40%); or
 
              (iii) more than 1.5%,  the fee rate payable  to Geewax Terker  was
           .15% (annual rate of .60%).
 
           (c)   For each calendar  quarter ended after March  31, 1993, the fee
       payable to Geewax Terker shall be paid  on the same basis as provided  in
       the  previous paragraph  except that  each of  the investment performance
       percentages set  forth  in  (i),  (ii) and  (iii)  above  (the  "original
       percentages")  shall be replaced by a new percentage that is equal to the
       product obtained  by  multiplying  each such  original  percentage  by  a
       fraction  whose  numerator  is  the  number  of  calendar  quarters,  not
       exceeding 12, that have elapsed since April 1, 1992 and whose denominator
       is 4.  For example,  for the  quarter ended  March 31,  1994 (the  eighth
       quarter), the fee rate will be calculated based on the performance of the
       Portfolio relative to that of the S&P 500 as follows:
 
                (i)  .05% (.20% annual rate) if  the return of the Portfolio for
           the preceding 24 months does not exceed  that of the S&P 500 by  more
           than 1.5%;
 
               (ii)  .10% (.40% annual rate) if  the return of the Portfolio for
           the preceding 24 months exceeds that of the S&P 500 by more than 1.5%
           but not more than 3.0%;
 
              (iii) .15% (.60% annual rate) if  the return of the Portfolio  for
           the  preceding 24  months exceeds  that of the  S&P 500  by more than
           3.0%.
 
    The period of time which shall be used to compare the investment performance
of the Portfolio with  the investment performance  of the S&P  500 shall be  the
number  of consecutive months that  this Agreement has been  in effect as of the
end of the quarter for which such  fee is being calculated, but not longer  than
the most recent 36 months.
 
B-12
<PAGE>
    The  investment  performance  of the  Portfolio  and  the S&P  500  shall be
calculated (i) as of the  end of each calendar quarter  on a total return  basis
and  (ii) for the same period of time. In calculating the investment performance
of the Portfolio for any period, the value of the Portfolio's cash distributions
from net investment income and realized net capital gains (whether long-term  or
short-term)  having an  ex-dividend date  occurring within  such period  and the
value of capital gains taxes paid or accrued during such period by the Portfolio
for undistributed realized long-term capital gains realized from the  Portfolio,
shall be included.
 
    In April 1972, the Securities and Exchange Commission ("SEC") issued Release
No. 7113 under the Investment Company Act of 1940 to call attention of directors
and  investment  advisers  to  certain  factors  which  must  be  considered  in
connection with  investment company  incentive fee  arrangements. One  of  these
factors  is  to  "avoid  basing  significant  fee  adjustments  upon  random  or
insignificant differences" between the investment performance of a fund and that
of the particular index  with which it is  being compared. The Release  provides
that  "preliminary studies (of the SEC staff) indicate that as a 'rule of thumb'
the performance difference should  be at least  +10 percentage points"  annually
before the maximum performance adjustment may be made. However, the Release also
states  that "because of the preliminary nature of these studies, the Commission
is not recommending, at  this time, that  any particular performance  difference
exist before the maximum fee adjustment may be made". The Release concludes that
the  directors of a fund "should satisfy themselves that the maximum performance
adjustment will be made only for performance differences that can reasonably  be
considered  significant." The Board of Trustees of the Fund has fully considered
the SEC Release and believes that the performance adjustments as included in the
proposed  agreement  are  entirely  appropriate  although  not  within  the  +10
percentage  points per  year range  suggested in  the Release.  Under the Fund's
investment advisory agreement, the maximum  performance adjustment is made at  a
difference  of +4.5 percentage points  from the performance of  the index over a
thirty-six  month  period,  which  would   effectively  be  the  equivalent   of
approximately   +1.125  percentage  points  difference   per  year.  The  Fund's
investment advisory  agreements  provide  for no  performance  adjustment  at  a
difference  of less  than +2.25  percentage points  from the  performance of the
index  over  a  thiry-six  month  period,  which  would  be  the  equivalent  of
approximately +.56 percentage points per year.
 
    The  agreement with  Geewax Terker  continues until  March 31,  1994 and the
agreement with Batterymarch continues until May  1, 1994. Each agreement may  be
terminated sooner, as provided herein.
 
    The Agreements are renewable thereafter, for successive one year periods, so
long  as such renewal  is specifically approved  at least annually  by vote of a
majority of those  members of  the Board  of Trustees of  the Fund  who are  not
parties  to the  Agreements or  interested persons  of any  such party,  cast in
person at a meeting called for the purpose of voting such approval. In addition,
the question of continuance of the  agreements may be presented to  shareholders
of  either of the Portfolios; in such  event, continuance shall be effected only
if approved by vote of  a majority of the  outstanding shares of the  respective
Portfolio.  If the holders of  the Portfolio fail to  approve the agreement, the
adviser of the Portfolio may continue  to serve as investment adviser until  new
arrangements  have  been made.  The Agreements  may be  terminated at  any time,
without penalty, by vote of the  Board of Trustees of the  Fund or by vote of  a
majority  of the outstanding shares of the  Portfolio on 60 days' written notice
to the investment advisers,  or by the investment  advisers on 90 days'  written
notice  to the Fund. The Agreements will automatically terminate in the event of
its assignment.
 
CONTROL OF THE ADVISERS
 
    John J. Geewax and Bruce E. Terker, Partners, are the "controlling  persons"
(as  that term  is defined in  the rules  and regulations of  the Securities and
Exchange Commission) of Geewax Terker.
 
    Dean LeBaron,  President  and owner  of  Batterymarch, is  the  "controlling
person"  (as that term is defined in the rules and regulations of the Securities
and Exchange Commission) of Batterymarch.
 
                                                                            B-13
<PAGE>
    The Fund's  Board of  Trustees may,  without the  approval of  shareholders,
provide for:
 
           A.   The employment of a new investment adviser pursuant to the terms
       of  a new  advisory agreement,  either as  a replacement  for an existing
       adviser or as an additional adviser.
 
           B.   A change in the terms of an advisory agreement.
 
           C.    The continued  employment of an  existing adviser  on the  same
       advisory  contract terms where a contract  has been assigned because of a
       change in control of the adviser.
 
    Any such change will only be made upon not less than 30 days' prior  written
notice  to  shareholders  of the  affected  Portfolio, which  shall  include the
information concerning the adviser that would  have normally been included in  a
proxy statement.
 
                             PORTFOLIO TRANSACTIONS
 
    The  investment  advisory  agreement authorizes  the  investment  adviser to
select the  brokers or  dealers that  will execute  the purchases  and sales  of
investment  securities for the Portfolios and  directs the investment adviser to
use its  best efforts  to obtain  the best  available price  and most  favorable
execution with respect to all transactions for the Portfolios.
 
    Since  the Fund does  not market its shares  through intermediary brokers or
dealers, it  is not  the  Fund's practice  to  allocate brokerage  or  principal
business  on the  basis of sales  of its shares  which may be  made through such
firms.  However,   the  Fund   may  place   portfolio  orders   with   qualified
broker-dealers  who recommend  the Fund  to clients, and  may, when  a number of
brokers and  dealers  can provide  comparable  best  price and  execution  on  a
particular  transaction, consider the sale of Fund  shares by a broker or dealer
in selecting among qualified broker-dealers.
 
    Some securities considered for investment by one of the Portfolios may  also
be  appropriate for other clients served by the investment advisers. If purchase
or sale of securities consistent with  the investment policies of the  Portfolio
and  one or  more of  these other  clients served  by the  investment adviser is
considered at or about  the same time, transactions  in such securities will  be
allocated among the Portfolio and clients in a manner deemed fair and reasonable
by the investment adviser. Although there is no specified formula for allocating
such  transactions,  the  various  allocation  methods  used  by  the investment
advisers, and the results of such allocations, are subject to periodic review by
the Fund's Board of Trustees.
 
   
    During the  years ended  December 31,  1991,  1992 and  1993 the  Fund  paid
$184,013, $879,366 and $753,881, respectively, in brokerage commissions.
    
 
                              PERFORMANCE MEASURES
 
    Vanguard/Trustees'  Equity  Fund  may  use one  or  more,  of  the following
unmanaged indexes for comparative performance purposes:
 
STANDARD & POOR'S 500 COMPOSITE STOCK PRICE INDEX--is a well diversified list of
500 companies representing the U.S. Stock Market.
 
WILSHIRE 5000 EQUITY INDEXES--consists of nearly 5,000 common equity securities,
covering all stocks in the U.S. for which daily pricing is available.
 
WILSHIRE 4500 EQUITY INDEX--consists of all  stocks in the Wilshire 5000  except
for the 500 stocks in the Standard and Poor's 500 Index.
 
RUSSELL  3000 STOCK INDEX--a  diversified portfolio of  over 3,000 common stocks
accounting for over 90%  of the market  value of publicly  traded stocks in  the
U.S.
 
RUSSELL 2000 STOCK INDEX--a subset of approximately 2,000 of the smallest stocks
contained  in the Russell 3000; a widely used benchmark for small capitalization
common stocks.
 
B-14
<PAGE>
MORGAN STANLEY  CAPITAL  INTERNATIONAL  EAFE  INDEX--is  an  arithmetic,  market
value-weighted  average of the performance of  over 900 securities listed on the
stock exchanges of countries in Europe, Australia and the Far East.
 
GOLDMAN SACHS 100  CONVERTIBLE BOND  INDEX--currently includes 67  bonds and  33
preferreds.   The  original  list  of  names  was  generated  by  screening  for
convertible issues of 100 million or greater in market capitalization. The index
is priced monthly.
 
SALOMON BROTHERS GNMA INDEX--includes pools  of mortgages originated by  private
lenders and guaranteed by the mortgage pools of the Government National Mortgage
Association.
 
SALOMON  BROTHERS HIGH-GRADE CORPORATE BOND  INDEX--consists of publicly issued,
non-convertible corporate bonds rated AA or  AAA. It is a value-weighted,  total
return  index, including approximately 800 issues with maturities of 12 years or
greater.
 
   
SHEARSON LEHMAN LONG-TERM TREASURY BOND--is composed of all bonds covered by the
Shearson Lehman  Hutton Treasury  Bond  Index with  maturities  of 10  years  or
greater.
    
 
MERRILL LYNCH CORPORATE & GOVERNMENT BOND--consists of over 4,500 U.S. Treasury,
Agency and investment grade corporate bonds.
 
SHEARSON  LEHMAN CORPORATE  (BAA) BOND  INDEX--all publicly  offered fixed rate,
nonconvertible domestic corporate bonds  rated Baa by  Moody's, with a  maturity
longer  than  1 year  and with  more  than $25  million outstanding.  This index
includes over 1,000 issues.
 
BOND BUYER MUNICIPAL INDEX  (20 YEAR) BOND--is a  yield index on current  coupon
high grade general obligation municipal bonds.
 
STANDARD & POOR'S PREFERRED INDEX--is a yield index based upon the average yield
of four high grade, non-callable preferred stock issues.
 
NASDAQ INDUSTRIAL INDEX--is composed of more than 3,000 industrial issues. It is
a  value-weighted index  calculated on  price change  only and  does not include
income.
 
COMPOSITE INDEX--70%  Standard &  Poor's  500 Index  and 30%  NASDAQ  Industrial
Index.
 
COMPOSITE  INDEX--35%  Standard  & Poor's  500  Index and  65%  Salomon Brothers
High-Grade Bond Index.
 
COMPOSITE INDEX--65%  Standard  & Poor's  500  Index and  35%  Salomon  Brothers
High-Grade Bond Index.
 
   
LEHMAN  BROTHERS AGGREGATE BOND INDEX--is a  market weighted index that contains
individually priced U.S. Treasury, agency, corporate, and mortgage  pass-through
securities  corporate rated BBB- or better. The Index has a market value of over
$4 trillion.
    
 
   
LEHMAN BROTHERS MUTUAL FUND SHORT (1-5) GOVERNMENT/CORPORATE INDEX--is a  market
weighted  index  that contains  individually priced  U.S. Treasury,  agency, and
corporate investment grade bonds rated BBB- or better with maturities between  1
and 5 years. The index has a market value of over $1.3 trillion.
    
 
   
LEHMAN BROTHERS MUTUAL FUND INTERMEDIATE (5-10) GOVERNMENT/CORPORATE INDEX--is a
market  weighted index that contains  individually priced U.S. Treasury, agency,
and corporate securities rated BBB- or  better with maturities between 5 and  10
years. The index has a market value of over $600 billion.
    
 
   
LEHMAN  BROTHERS MUTUAL FUND LONG  (10+) GOVERNMENT/CORPORATE INDEX--is a market
weighted index  that contains  individually priced  U.S. Treasury,  agency,  and
corporate securities rated BBB- or better with maturities greater than 10 years.
The index has a market value of over $900 billion.
    
 
LIPPER  SMALL  COMPANY GROWTH  FUND  AVERAGE--the average  performance  of small
company growth  funds as  defined  by Lipper  Analytical Services,  Inc.  Lipper
defines  a small company growth  fund as a fund  that by prospectus or portfolio
practice, limits its investments to  companies on the basis  of the size of  the
company. From time to time, Vanguard may advertise using the average performance
and/or the average
 
                                                                            B-15
<PAGE>
expenses  ratio of the small company growth funds. (This fund category was first
established in 1982. For years  prior to 1982, the  results of the Lipper  Small
Company  Growth  category were  estimated using  the returns  of the  Funds that
constituted the Group at its inception.)
 
LIPPER BALANCED FUND  AVERAGE--An industry benchmark  of average balanced  funds
with   similar  investment  objectives  and  policies,  as  measured  by  Lipper
Analytical Services, Inc.
 
LIPPER NON-GOVERNMENT  MONEY  MARKET  FUND  AVERAGE--An  industry  benchmark  of
average non-government money market funds with similar investment objectives and
policies, as measured by Lipper Analytical Services, Inc.
 
LIPPER  GOVERNMENT MONEY MARKET  FUND AVERAGE--An industry  benchmark of average
government money market funds with  similar investment objectives and  policies,
as measured by Lipper Analytical Services, Inc
 
                              GENERAL INFORMATION
 
DESCRIPTION OF SHARES AND VOTING RIGHTS
 
    The  Fund was established as a "business trust" under Pennsylvania law under
a Declaration of Trust dated May 16, 1984. The Declaration of Trust permits  the
Trustees  to issue an unlimited number of shares of beneficial interest, without
par value,  from  an unlimited  number  of separate  classes  ("Portfolios")  of
shares. Currently the Fund is offering shares of two Portfolios.
 
    The  shares of each  Portfolio are fully paid  and non-assessable, except as
set forth under "Shareholder and Trustee  Liability," and have no preference  as
to  conversion, exchange,  dividends, retirement  or other  features. The shares
have no preemptive rights. The  shares have non-cumulative voting rights,  which
means that the holders of more than 50% of the shares voting for the election of
Trustees  can elect 100% of the Trustees if  they choose to do so. A shareholder
is entitled to one vote for each full share held (and a fractional vote for each
fractional share held), then standing in his  name on the books of the Fund.  On
any  matter submitted  to a vote  of shareholders,  all shares of  the Fund then
issued and outstanding and entitled to vote, irrespective of the class, shall be
voted in  the aggregate  and  not by  class: except  (i)  when required  by  the
Investment  Company Act of 1940, shares shall  be voted by individual class; and
(ii) when the matter does  not affect any interest  of a particular class,  then
only  shareholders of the  affected class or  classes shall be  entitled to vote
thereon.
 
    The Fund will continue without limitation of time, provided however that:
 
        1) Subject to  the  majority  vote  of the  holders  of  shares  of  any
           Portfolio  of the Fund outstanding, the  Trustees may sell or convert
           the assets  of  such  Portfolio  to  another  investment  company  in
           exchange  for shares of such  investment company, and distribute such
           shares, ratably among the shareholders of such Portfolio; and
 
        2) Subject to the majority vote of  shares of any Portfolio of the  Fund
           outstanding,  the Trustees may sell and convert into money the assets
           of such  Portfolio  and  distribute such  assets  ratably  among  the
           shareholders of such Portfolio.
 
    Upon  completion  of  the  distribution of  the  remaining  proceeds  or the
remaining assets of any Portfolio as provided in paragraphs 1) and 2) above, the
Fund shall terminate as to that  Portfolio and the Trustees shall be  discharged
of any and all further liabilities and duties hereunder and the right, title and
interest of all parties shall be cancelled and discharged.
 
SHAREHOLDER AND TRUSTEE LIABILITY
 
    Under   Pennsylvania  law,  shareholders  of  a  trust  may,  under  certain
circumstances, be held personally liable as partners for the obligations of  the
Trust.  Therefore, the  Declaration of Trust  contains an  express disclaimer of
shareholder liability for  acts or  obligations of  the Fund  and requires  that
notice  of such disclaimer be given in each agreement, obligation, or instrument
entered into or executed by the Fund or
 
B-16
<PAGE>
the Trustees. The Declaration of Trust  provides for indemnification out of  the
Fund  property of any shareholder held  personally liable for the obligations of
the Fund.  The Declaration  of Trust  also provides  that the  Fund shall,  upon
request,  assume the defense of  any claim made against  any shareholder for any
act or obligation of the Fund and  satisfy any judgment thereon. Thus, the  risk
of a shareholder incurring financial loss on account of shareholder liability is
limited  to circumstances in which  the Fund itself would  be unable to meet its
obligations. The Trustees and officers of the Fund believe that, in view of  the
above, the risk of personal liability to shareholders is remote.
 
    The  Declaration of  Trust further  provides that  the Trustees  will not be
liable for errors of  judgment or mistakes  of fact or law,  but nothing in  the
Declaration  of Trust protects a Trustee against any liability to which he would
otherwise be  subject  by  reason  of  willful  misfeasance,  bad  faith,  gross
negligence,  or reckless disregard of the duties  involved in the conduct of his
office.
 
                              FINANCIAL STATEMENTS
 
   
    The Fund's  financial  statements for  the  year ended  December  31,  1993,
including  the financial highlights for each of the five years in the year ended
December 31, 1993, appearing in the  Fund's 1993 Annual Report to  Shareholders,
and  the  report  thereon  of Price  Waterhouse,  independent  accountants, also
appearing therein, are incorporated by reference in this Statement of Additional
Information. The Fund's 1993 Annual Report to Shareholders is enclosed with this
Statement of Additional Information.
    
 
                                                                            B-17

<PAGE>
                                                                      EXHIBIT 11
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We  hereby consent to  the incorporation by reference  in the Prospectus and
the Statement  of Additional  Information, constituting  parts of  this  amended
Registration  Statement  on Form  N-1A,  of our  report  dated January  31, 1994
relating to  the  financial  statements,  including  the  financial  highlights,
appearing   in  the  December   31,  1993  Annual   Report  to  Shareholders  of
Vanguard/Trustees'  Equity  Fund  (comprised  of  the  U.S.  Portfolio  and  the
International  Portfolio),  which are  also incorporated  by reference  into the
Registration Statement.  We also  consent  to the  references  to us  under  the
headings  "Financial Highlights" and "General Information" in the Prospectus and
"Financial Statements" in the Statement of Additional Information.
 
PRICE WATERHOUSE
Philadelphia, PA
April 15, 1994

<PAGE>
                                                                      EXHIBIT 16
 
               SCHEDULE FOR COMPUTATION OF PERFORMANCE QUOTATIONS
                VANGUARD TRUSTEES' EQUITY FUND -- U.S. PORTFOLIO
 
1.  Average Annual Total Return (As of December 31, 1993)
 
    P(1 + T)to the power of n = ERV
 
Where:   P =  a hypothetical initial payment of $1,000
         T =  average annual total return
         N =  number of years
       ERV =  ending redeemable value at the end of the period
 
  EXAMPLE:
  One Year
       P = $1,000
       T = +17.24%
       N = 1
     ERV = $1,172.44
  Five Year
       P = $1,000
       T = +11.16%
       N = 5
     ERV = $1,697.59
  Ten Year
       P = $1,000
       T = +11.24%
       N = 10
     ERV = $2,902.64
 
2.  YIELD (30 Days Ended December 31, 1993)
 
               a
Yield = 2 [( -----+ 1) to the power of b - 1] - b X 100
             c X d
 
Where:   a =  dividends and interest paid during the period
              expense ratios during the period (net of
         b =  reimbursements)
              the average daily number of shares outstanding
         c =  during the period
              the maximum offering price per share on the last
         d =  day of the period
 
  EXAMPLE:
       a = $181,988.39
       b = .813
       c = 3,879,145.000
       d = $30.65
   Yield = 1.03%
 
<PAGE>
                                                                      EXHIBIT 16
 
               SCHEDULE FOR COMPUTATION OF PERFORMANCE QUOTATIONS
           VANGUARD TRUSTEES' EQUITY FUND -- INTERNATIONAL PORTFOLIO
 
1.  Average Annual Total Return (As of December 31, 1993)
 
    P(1 + T)to the power of n = ERV
 
Where:   P =  a hypothetical initial payment of $1,000
         T =  average annual total return
         N =  number of years
       ERV =  ending redeemable value at the end of the period
  EXAMPLE:
  One Year
       P = $1,000
       T = +30.49%
       N = 1
     ERV = $1,034.94
  Five Years
       P = $1,000
       T = +7.68%
       N = 5
     ERV = $1,447.60
  Ten Year*
       P = $1,000
       T = +16.16%
       N = 10
     ERV = $4,470.78*
  Since inception 5/16/83


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