VANGUARD QUANTITATIVE PORTFOLIOS INC
497, 1998-04-22
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                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549



                                   Form N-1A



                  REGISTRATION STATEMENT (NO. 33-8553) UNDER
                          THE SECURITIES ACT OF 1933
                          Pre-Effective Amendment No.
                                                                             /X/
                        Post-Effective Amendment No. 12
                                                                             /X/
                                      and


              REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                  ACT OF 1940

                                Amendment No. 14
                                                                             /X/
                                                                                
                             VANGUARD QUANTITATIVE
                               PORTFOLIOS, INC.
              (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:
            April 17, 1998, pursuant to paragraph (b) of Rule 485.

                 Approximate Date of Proposed Public Offering:
  As soon as practicable after this Registration Statement becomes effective.

     We have elected to register an indefinite number of shares pursuant to
Regulation 24f-2 under the Investment Company Act of 1940. We filed our Rule
24f-2 Notice for the year ended December 31, 1997 on March 30, 1998.



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[GRAPHIC OMITTED]

                                                 A Member of The Vanguard Group
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PROSPECTUS -- April 17, 1998
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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 Growth and Income Portfolio (the "Portfolio"), a
OBJECTIVE AND       portfolio of Vanguard Quantitative Portfolios, Inc. (the 
POLICIES            "Fund"), is an open-end diversified investment company that
                    seeks to realize a total return (dividend income plus
                    capital change) greater than the return of the aggregate
                    U.S. stock market, as measured by the Standard & Poor's
                    500 Composite Stock Price Index (the "S&P 500 Index").
                    (Prior to April 30, 1997, this Portfolio was known as
                    Vanguard Quantitative Portfolios.) The Portfolio will hold
                    a broadly diversified portfolio of common stocks that in 
                    the aggregate exhibit investment characteristics similar to
                    those of the S&P 500 Index. There is no assurance that the
                    Portfolio will achieve its stated objective. Shares of the
                    Portfolio are neither insured nor guaranteed by any agency
                    of the U.S. Government, including the FDIC.
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OPENING AN          To open a regular (non-retirement) account, please complete
ACCOUNT             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
                    9:00 p.m. and Saturday, from 9:00 a.m. to 4:00 p.m.
                    (Eastern time). The minimum initial investment is $3,000,
                    or $1,000 for Uniform Gifts/Transfers to Minors Act
                    accounts. The Portfolio is offered on a no-load basis
                    (i.e. there are no sales commissions or 12b-1 fees).
                    However, the Portfolio 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 Portfolio before you
                    invest. It should be retained for future reference. A
                    "Statement of Additional Information" containing
                    additional information about the Portfolio has been filed
                    with the Securities and Exchange Commission. This
                    Statement is dated April 17, 1998 and has been
                    incorporated by reference into this Prospectus. A copy may
                    be obtained without charge by writing to the Fund, by
                    calling the Investor Information Department at
                    1-800-662-7447 or visiting the Securities and Exchange
                    Commission's website (www.sec.gov).
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TABLE OF CONTENTS


                                           Page
  Portfolio Expenses ...................     2
  Financial Highlights .................     2
  Yield and Total Return ...............     3
          PORTFOLIO INFORMATION
  Investment Objective .................     4
  Investment Policies ..................     4
  Investment Risks .....................     5
  Who Should Invest ....................     5
  Implementation of Policies ...........     6
 
                                           Page
  Investment Limitations ...............     8
  Management of the Portfolio ..........     9
  Investment Adviser ...................     9
  Performance Record ...................    11
  Dividends, Capital Gains and
     Taxes .............................    11
  The Share Price of the Portfolio .....    13
  General Information ..................    13
 
                                           Page
              SHAREHOLDER GUIDE
  Opening an Account and
     Purchasing Shares .................    15
  When Your Account Will Be
     Credited ..........................    18
  Selling Your Shares ..................    19
  Exchanging Your Shares ...............    21
  Important Information About
     Telephone Transactions ............    22
  Transferring Registration ............    23
  Other Vanguard Services ..............    23

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THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED UPON
THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.

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PORTFOLIO           The following table illustrates all expenses and fees that
EXPENSES            you would incur as a shareholder of the Portfolio. The 
                    expenses and fees set forth in the table are for the 1997 
                    fiscal year.




                    Shareholder Transaction Expenses
                    -----------------------------------------------------------
                    Sales Load Imposed on Purchases ....................   None
                    Sales Load Imposed on Reinvested Dividends .........   None
                    Redemption Fees ....................................   None
                    Exchange Fees ......................................   None
 



                    Annual Portfolio Operating Expenses
                ---------------------------------------------------------------
                    Management & Administrative Expenses .........        0.21%
                    Investment Advisory Fees .....................        0.12
                    12b-1 Fees ...................................        None
                    Other Expenses
                      Distribution Costs .........................   0.02%
                      Miscellaneous Expenses .....................   0.01
                                                                     -----
                    Total Other Expenses .........................        0.03
                                                                         -----
                        Total Operating Expenses .................        0.36%
                                                                          =====
                  
              
                  
                   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 Portfolio.
                  
                   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 Portfolio
                   charges no redemption fees of any kind.
                  
                


   
                            1 Year     3 Years     5 Years     10 Years
                            --------   ---------   ---------   ---------
                            $  4          $12         $20         $46
    
          


                    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.
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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, 1997, have
                    been derived from financial statements which were audited
                    by Price Waterhouse LLP, independent accountants, whose
                    report thereon was unqualified. (Please note, Vanguard
                    Growth and Income Portfolio was previously known as
                    Vanguard Quantitative Portfolios.) This information should
                    be read in conjunction with the Fund's financial
                    statements and notes thereto, which, together with the
                    remaining portions of the Fund's 1997 Annual Report to
                    Shareholders, are incorporated by reference in the
                    Statement of Additional Information and in this
                    Prospectus, and which appear, along with the report of
                    Price Waterhouse LLP, in the Fund's 1997 Annual Report to
                    Shareholders. The Fund's 1997 Annual Report to
                    Shareholders may be obtained without charge by writing to
                    the Fund or by calling our Investor Information Department
                    at 1-800-662-7447.



2
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<TABLE>
<CAPTION>
   
                                                       Year Ended December 31,
                                          --------------------------------------------------
                                              1997         1996         1995         1994
                                          -----------  -----------  -----------  -----------
<S>                                       <C>          <C>          <C>          <C>
Net Asset Value, Beginning of
 Year ..................................  $ 22.23      $ 19.95       $ 15.56       $ 16.45
                                          --------     --------      --------      --------
Investment Operations
 Net Investment Income .................      .41          .41           .41           .40
 Net Realized and Unrealized Gain
  (Loss) on Investments ................     7.15         4.09          5.14          (.50)
                                          --------     --------      --------      --------
 Total from Investment
  Operations ...........................     7.56         4.50          5.55          (.10)
- ----------------------------------------- --------     --------      --------      --------
Distributions
 Dividends from Net Investment
  Income ...............................     (.42)        (.40)         (.42)         (.39)
 Distributions from Realized Capital
  Gains ................................    (3.18)       (1.82)         (.74)         (.40)
                                          --------     --------      --------      --------
  Total Distributions ..................    (3.60)       (2.22)        (1.16)         (.79)
- ----------------------------------------- --------     --------      --------      --------
Net Asset Value, End of Year ...........  $ 26.19      $ 22.23       $ 19.95       $ 15.56
========================================= ========     ========      ========      ========
Total Return ...........................    35.59%       23.06%        35.93%        (0.61)%
========================================= ========     ========      ========      ========
Ratios/Supplemental Data
Net Assets, End of Year (Millions) .....  $ 2,142      $ 1,285       $   909       $   596
Ratio of Total Expenses to Average
 Net Assets ............................     0.36%        0.38%         0.47%         0.48%
Ratio of Net Investment Income to
 Average Net Assets ....................     1.74%        1.97%         2.25%         2.50%
Portfolio Turnover Rate ................       66%          75%           59%           71%
Average Commission Rate Paid ...........  $ .0388      $ .0333           N/A           N/A
</TABLE>
    

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                         [RESTUBBED FROM TABLE ABOVE]


<TABLE>
<CAPTION>
                                                                    Year Ended December 31,
                                          ----------------------------------------------------------------------------
                                              1993         1992         1991         1990         1989         1988
                                          -----------  -----------  -----------  -----------  -----------  -----------
<S>                                       <C>          <C>          <C>          <C>          <C>          <C>
   
Net Asset Value, Beginning of
 Year ..................................   $ 16.30      $ 16.32      $ 13.29      $  14.14     $ 11.08      $  9.80
                                           -------      -------      -------      --------     -------      -------
Investment Operations
 Net Investment Income .................       .40          .44          .47           .49         .43          .36
 Net Realized and Unrealized Gain
  (Loss) on Investments ................      1.83          .69         3.47          (.83)       3.10         1.27
                                           -------      -------      -------      --------     -------      -------
 Total from Investment
  Operations ...........................      2.23         1.13         3.94          (.34)       3.53         1.63
- -----------------------------------------  -------      -------      -------      --------     -------      -------
Distributions
 Dividends from Net Investment
  Income ...............................      (.39)        (.44)        (.47)         (.47)       (.47)        (.35)
 Distributions from Realized Capital
  Gains ................................     (1.69)        (.71)        (.44)         (.04)         --           --
                                           -------      -------      -------      --------     -------      -------
  Total Distributions ..................    ( 2.08)       (1.15)        (.91)         (.51)       (.47)        (.35)
- -----------------------------------------  -------      -------      -------      --------     -------      -------
Net Asset Value, End of Year ...........   $ 16.45      $ 16.30      $ 16.32      $  13.29     $ 14.14      $ 11.08
=========================================  =======      =======      =======      ========     ========     =======
Total Return ...........................     13.83%        7.01%       30.29%       (2.44)%      32.00%       16.80%
=========================================  =======      =======      =======      ========     ========     =======
Ratios/Supplemental Data
Net Assets, End of Year (Millions) .....   $   531      $   416      $   335      $   211      $   175      $   144
Ratio of Total Expenses to Average Net
 Assets ................................      0.50%        0.40%        0.43%        0.48%        0.53%        0.64%
Ratio of Net Investment Income to
 Average Net Assets ....................      2.22%        2.67%        2.95%        3.34%        3.35%        3.38%
Portfolio Turnover Rate ................        85%          51%          61%          81%          78%          50%
Average Commission Rate Paid ...........       N/A          N/A          N/A          N/A          N/A          N/A
</TABLE>
    


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YIELD AND           From time to time the Portfolio may advertise its yield and
TOTAL 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 the
                    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 distributions.


                    In accordance with industry guidelines set forth by the
                    U.S. Securities and Exchange Commission, the "30-day yield"
                    of the 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 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. However, these methods differ from the accounting
                    methods used by the Portfolio to maintain its books and
                    records, and so the advertised 30-day yield may not fully
                    reflect the income paid to an investor's account or the
                    yield reported in the Fund's Annual Report to Shareholders.
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                                                                               3
                                                                               
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INVESTMENT          The Portfolio is an open-end diversified investment
OBJECTIVE           company. The objective of the Portfolio is to realize a
                    total investment return (dividend income plus capital
                    change) greater than the return of the aggregate U.S.
                    stock market, as measured by the Standard & Poor's 500
                    Composite Stock Price Index (the "S&P 500 Index"). There
                    is no assurance that the Portfolio will achieve its stated
                    objective.
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INVESTMENT          The Portfolio will invest in a broadly diversified
POLICIES            portfolio of common stocks. At least 65% of the
The Portfolio uses  Portfolio's assets will be invested in securities which
quantitative        are included in the S&P 500 Index, while the balance of
techniques to       the Portfolio's assets may be invested  in common stocks   
select common       not represented in the Index. Historically, the types
stocks              of securities that the Portfolio invests in have provided 
                    capital appreciation and dividend income. The Portfolio is 
                    managed without regard to tax ramifications.             
                                                                              
                    Stocks are selected for the Portfolio so that, in the
                    aggregate, the investment characteristics of the Portfolio
                    are similar to those of the S&P 500 Index. These
                    characteristics include such measures as dividend yield
                    (before expenses), price-to-earnings ratio, "beta"
                    (relative volatility), return on equity, and market
                    price-to-book value ratio. However, while maintaining
                    aggregate investment characteristics similar to those of
                    the S&P 500 Index, the Portfolio seeks to invest in
                    individual common stocks -- including stocks which are not
                    part of the Index -- which will in the aggregate provide a
                    higher total return than the Index. Of course, there can be
                    no assurance that the Portfolio's investment performance
                    will match or exceed that of the S&P 500 Index.

                    To select stocks for the Portfolio, the Portfolio's
                    investment adviser first ranks a broad universe of common
                    stocks using several quantitative investment models. These
                    models are based upon such factors as measures of changes
                    in earnings and of relative value based on present and
                    historical price-to-earnings ratios and yields, as well as
                    dividend discount calculations based on corporate cash
                    flow. Once the ranking of common stocks is completed, the
                    adviser, using a technique known as "portfolio
                    optimization," then constructs a portfolio that in the
                    aggregate resembles the S&P 500 Index, but is weighted
                    towards the most attractive stocks in the universe of
                    stocks monitored, as determined by the quantitative models.
                     

                    The Portfolio seeks to remain fully invested in common
                    stocks. However, the Portfolio is also authorized to invest
                    in certain short-term fixed income securities and in stock
                    index futures contracts and options to a limited extent.
                    See "Implementation of Policies" for a description of these
                    and other investment practices of the Portfolio.

                    The Portfolio is responsible for voting the shares of all
                    securities it holds.

                    The investment objective and policies of the Portfolio are
                    not fundamental and so may be changed by the Board of
                    Directors without shareholder approval. However,
                    shareholders would be notified prior to a material change
                    in either.

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4
                                                                               
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INVESTMENT RISKS    As a mutual fund investing primarily in common stocks, the
                    Portfolio is subject to market risk -- i.e., the
The Portfolio is    possibility that common stock prices will decline over 
subject to market   short or even extended periods. The U.S. stock market tends
risk                to be cyclical, with periods when stock prices generally
                    rise and periods when prices generally  decline.


                    To illustrate the volatility of stock prices, the following
                    table sets forth the extremes for stock market returns as
                    well as the average return for the period from 1926 to
                    1997, as measured by the Standard & Poor's 500 Composite
                    Stock Price Index:


                         Average Annual U.S. Stock Market Returns (1926-1997)

                                     Over Various Time Horizons


                                 1 Year       5 Years      10 Years     20 Years
                                 ------       -------      --------     --------
               
                    Best         +53.9%        +23.9%        +20.1%      +16.9%
                    Worst        -43.3         -12.5         - 0.9       + 3.1
                    Average      +13.0         +10.5         +10.9       +10.9
 



                    As shown, common stocks have provided annual total returns
                    (capital appreciation plus dividend income) averaging
                    +10.9% for all 10-year periods from 1926 to 1997. 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.


                    This table of U.S. stock market returns should not be
                    viewed as a representation of future returns from the
                    Portfolio or the U.S. stock market. The illustrated returns
                    represent the historical investment performance, which may
                    be a poor guide to future returns. Also, stock market
                    indexes such as the S&P 500 are based upon unmanaged
                    portfolios of securities, before transaction costs and
                    other expenses. Such costs will reduce the relative
                    investment performance of the Portfolio and other "real
                    world" portfolios.
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WHO SHOULD          The Portfolio is designed for investors whose objective is
INVEST              to achieve a total return marginally superior to the
                    return from the S&P 500 Index with reasonable consistency
Investors seeking   over time, while minimizing the risk of substantial
a "margin of        underperformance during any individual year. Because
superiority" over   of the risks associated the with common stock investments,
S&P 500 Index       the Portfolio 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 Portfolio's
                    shareholders. In order to minimize such costs the Portfolio
                    has adopted the following policies. The Portfolio 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


                                                                               5
                                                                               
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                    or previous excessive trading by the investor.
                    Additionally, the Portfolio has adopted exchange privilege
                    limitations as described in the section "Exchange
                    Privilege Limitations." Finally, the Portfolio reserves
                    the right to suspend the offering of its shares.

                    No assurance can be given that the Portfolio will attain
                    its objective or that shareholders will be protected from
                    the risk of loss that is inherent in equity investing. All
                    equity portfolios are influenced by price movements in the
                    broad equity market. Investors may wish to reduce the
                    potential risk of investing in the Portfolio by purchasing
                    shares on a regular, periodic basis (dollar-cost averaging)
                    rather than making an investment in one lump sum.

                    Investors should not consider the Portfolio a complete
                    investment program, but should also maintain holdings in
                    investments with different risk characteristics, such as
                    bonds and money market instruments. Investors may also wish
                    to complement an investment in the Portfolio with other
                    types of common stock investments.

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IMPLEMENTATION      The Portfolio utilizes a variety of investment practices in
OF POLICIES         its effort to surpass the total return of the S&P 500 Index.


The Portfolio       The Portfolio will invest at least 65% of its assets in
invests primarily   securities that are included in the S&P 500 Index (the
in S&P 500          "Index"), and it is expected thatthe aggregate investment 
                    stocks characteristics of the Portfolio will be similar to
                    those of the Index. The S&P 500 Index measures the total
                    investment return (capital change plus dividend income)
                    provided by a universe of 500 common stocks, weighted by
                    their market value. These 500 securities, most of which
                    trade on the New York Stock Exchange, represent
                    approximately 70% of the market value of all U.S. common
                    stocks. Because of the market-value weighting, the 50
                    largest companies in the Index currently account for
                    approximately 50% of the Index.

                    As of December 31, 1997, the five largest companies in the
                    Index were: General Electric Company (3.2%), Coca-Cola
                    Company (2.2%), Microsoft Corporation (2.1%), Exxon
                    Corporation (2.0%), and Merck & Co., Inc. (1.7%) . The
                    largest industry categories were: pharmaceutical companies
                    (9.3%), banks (8.5%), telephone companies (7.1%),
                    multi-sector companies (5.4%), and computer companies
                    (4.7%).


                    The S&P 500 Index is an unmanaged, statistical measure of
                    stock market performance. As such, it does not reflect the
                    actual, "real world" costs of investing in common stocks.
                    By contrast, the Portfolio is actively managed and
                    therefore incurs the normal costs of a mutual fund,
                    including brokerage and execution costs, advisory fees,
                    costs of distribution and administration, and custodial
                    fees.

                    Standard & Poor's Corporation chooses the common stocks to
                    be included in the S&P 500 Index solely on a statistical
                    basis. Inclusion of a security in the Index in


6
                                                                               
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                    no way implies an opinion by Standard & Poor's Corporation
                    as to its attractiveness or appropriateness as an
                    investment. Standard & Poor's Corporation is neither a
                    sponsor of nor in any way affiliated with the Portfolio.

The Fund may invest Although it normally seeks to remain substantially fully  
in short-term fixed invested in common stocks, the Portfolio may invest       
income securities    temporarily in certain short-term fixed income          
                    securities. Such securities may be used to invest         
                    uncommitted cash balances or to maintain liquidity to meet
                    shareholder redemptions. 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 agreements collateralized by these securities. 

The Portfolio may   The Portfolio may lend its investment securities to
lend its securities qualified institutional investors for either short-term or
                    long-term purposes of realizing additional income. Loans
                    of securities by the 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.

The Portfolio may   The Portfolio may borrow money, subject to the limits set
borrow money        forth on page 8, for temporary or emergency purposes,
                    including the meeting of redemption requests which might
                    otherwise require the untimely disposition of securities.

Portfolio turnover  Although it generally seeks to invest for the long term,  
is not expected to  the Portfolio retains the right to sell securities        
exceed 100%         irrespective of how long they have been held. It is       
                    anticipated that the annual portfolio turnover of the     
                    Portfolio will not exceed 100%. A turnover rate of 100%   
                    would occur, for example, if all of the securities of the 
                    Portfolio were replaced within one year.                  

Derivative          Derivatives are instruments whose values are linked to or 
Investing           derived from an underlying security or index. The most    
                    common and conventional types of derivative securities are
                    futures and options.                                      

The Portfolio may   The Portfolio may invest in futures contracts and options,
invest in           but only to a limited extent. Specifically, the Portfolio 
derivative          may enter into futures contracts provided that not more   
securities          than 5% of its assets are required as a futures contract  
                    deposit; in addition, the 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
                    common fund management strategies: to maintain cash
                    reserves while simulating full investment, to facilitate
                    trading, to reduce transaction costs, or to seek higher
                    investment returns when a specific futures contract is
                    priced more attractively than other futures contracts or
                    the underlying security or index.

                    The Portfolio may use futures contracts for bona fide
                    "hedging" purposes. In executing a hedge, a manager sells,
                    for example, stock index futures to protect against a
                    decline in the stock market. As such, if the market drops,
                    the value of


                                                                               7
                                                                               
<PAGE>


                    the futures position will rise, thereby offsetting the
                    decline in value of the Portfolio's stock holdings.


Futures contracts   The primary risks associated with the use of futures     
and options pose    contracts and options are: (i) imperfect correlation     
certain risks       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 in those contracts whose price fluctuations are
                    expected to resemble those of the Portfolio's underlying
                    securities. The risk that the Portfolio will be unable to
                    close out 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, 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 Portfolio will
                    segregate cash or other liquid portfolio securities in the
                    amount of the underlying obligation.

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INVESTMENT          The Portfolio has adopted limitations on some of its
LIMITATIONS         investment policies. Some of these limitations are that the
                    Portfolio will not:


The Portfolio has   (a) with respect to 75% of the value of its total assets,  
adopted certain         purchase the securities of any issuer (except          
fundamental             obligations of the United States Government and its    
limitations             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;                         


                    (b) 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; and


                    (c) pledge, mortgage or hypothecate any of its assets to
                        an extent greater than 5% of its total assets.


                    A complete list of the Portfolio's investment limitations
                    can be found in the Statement of Additional Information.
                    These limitations are fundamental and may be changed only
                    by approval of a majority of the Portfolio's shareholders.

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

8
                                                                               
<PAGE>



   
MANAGEMENT OF       The Portfolio is a member of The Vanguard Group of
THE PORTFOLIO       Investment Companies, a family of more than 30 investment 
                    companies with more than 95 distinct investment portfolios
Vanguard            and total assets in excess of $360 billion. Through their 
administers and     jointly-owned subsidiary, The Vanguard Group, Inc.        
distributes the     ("Vanguard"), the Fund and the other funds in the Group   
Fund                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 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 1997, the average expense ratio
                    (annual costs including advisory fees divided by total net
                    assets) for the Vanguard funds amounted to approximately  
                    0.28% compared to an average of 1.24% for the mutual fund 
                    industry (data provided by Lipper Analytical Services).   
    


                    The Officers of the Fund manage its day-to-day operations
                    and are responsible to the Fund's Board of Directors. The
                    Directors set broad policies for the Portfolio and choose
                    the Fund's Officers. A list of the Directors 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 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 Directors (Trustees) of each fund. In addition,
                    each fund bears its own direct expenses, such as legal,
                    auditing and custodian fees.

                    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.
- --------------------------------------------------------------------------------

INVESTMENT          The Fund employs Franklin Portfolio Associates LLC
ADVISER             ("Associates"), Two International Place, Boston, MA      
                    02110, as the Portfolio's investment adviser. Under an    
Franklin Portfolio  investment advisory agreement with the Fund dated April 1,
Associates manages  1996, Associates manages the investment and reinvestment  
the Portfolio's     of the Portfolio's assets and continuously reviews,       
investments         supervises, and directs the Portfolio's investment        
                    program. Associates discharges its responsibilities       
                    subject to the control of the Officers and Directors of   
                    the Fund.   
                                              
                    Associates is a professional investment counseling firm
                    which specializes in the management of common stock
                    portfolios through the use of quantitative investment
                    models. Founded in 1982, Associates, a Massachusetts
                    limited liability company, is a wholly-owned indirect
                    subsidiary of Mellon Bank Corporation that has no
                    affiliation to The Franklin/Templeton Group of Funds or
                    Franklin Resources, Inc. As of December 31, 1997,
                    Associates provided investment advisory services



                                                                               9
                                                                               
<PAGE>

                                                                               


   
                    with respect to approximately $13.8 billion of client
                    assets. Associates also serves as adviser to approximately
                    one-third of the equity investments of Vanguard/Morgan
                    Growth Fund, another mutual fund member of The Vanguard
                    Group.
    
                    Associates employs proprietary computer models in selecting
                    individual equity securities and in structuring investment
                    portfolios for its clients, including the Portfolio. John
                    J. Nagorniak, President of Associates, has been designated
                    as the portfolio manager of the Fund, a position he has
                    held since the Fund's inception in December 1986; he is
                    responsible for overseeing the application of Associates'
                    quantitative techniques to the Portfolio's assets. Mr.
                    Nagorniak and the other investment principals of Associates
                    are responsible for the ongoing development and enhancement
                    of Associates' quantitative investment techniques.

                    The Portfolio pays Associates an advisory fee at the end of
                    each fiscal quarter, calculated by applying a quarterly
                    rate, based on the following annual percentage rates, to
                    the Portfolio's average month-end net assets for the
                    quarter:

                    Net Assets               Rate  
                    ----------------------   ----
                      First $100 million     .30%
                      Next $650 million      .15%
                      Over $750 million      .10%

                    This fee may be increased or reduced by applying an
                    adjustment formula based on the investment performance of
                    the Portfolio relative to the S&P 500 Index. For the year
                    ended December 31, 1997, the advisory fee represented an
                    effective annual basis rate of 0.13% of the Portfolio's
                    average net assets before a decrease of 0.01% based on
                    performance.

                    The investment advisory agreement authorizes Associates to
                    select brokers and dealers to execute purchases and sales
                    of the Portfolio's securities, and directs Associates to
                    use its best efforts to obtain the best available price and
                    most favorable execution with respect to all transactions.
                    The full range and quality of brokerage services are
                    considered in making these determinations.

                    The Portfolio has authorized Associates to pay higher
                    commissions in recognition of brokerage services felt
                    necessary for the achievement of better execution, provided
                    Associates believes this to be in the best interest of the
                    Portfolio. If more than one broker can obtain the best
                    available price and favorable execution of a transaction,
                    then Associates is authorized to choose a broker who, in
                    addition to executing the transaction, will provide
                    research services to Associates or the Portfolio. However,
                    Associates will not pay higher commissions specifically for
                    the purpose of obtaining research services. The Portfolio
                    may direct Associates to use a particular broker for
                    certain transactions in exchange for commission rebates or
                    research services provided to the Portfolio.


                    The Fund's Board of Directors 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)


10
                                                                               
<PAGE>


                    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 Portfolio which shall
                    include substantially the information concerning the
                    adviser that would have normally been included in a proxy
                    statement.
- --------------------------------------------------------------------------------
PERFORMANCE         The table in this section provides investment results for
RECORD              the Portfolio for several periods throughout the Fund's
                    lifetime. (Please note, Vanguard Growth and Income
                    Portfolio was previously known simply as Vanguard
                    Quantitative Portfolios.) The results shown represent
                    "total return" investment 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 stock market activity, and the Consumer Price
                    Index, a statistical measure of changes in the prices of
                    goods and services. The tables do not make any allowance
                    for federal, state or local income taxes, which
                    shareholders must pay on a current basis.

                    The results shown should not be considered a representation
                    of the total return from an investment made in the
                    Portfolio today. This information is provided to help
                    investors better understand the Portfolio and may not
                    provide a basis for comparison with other investments or
                    mutual funds which use a different method to calculate
                    performance.
   
                                    Average Annual Return for
                              Vanguard Growth and Income Portfolio
    


                                        Vanguard                     Consumer
                    Fiscal Years       Growth and       S&P 500       Price
                    Ended 12/31/97  Income Portfolio     Index        Index
                    --------------  ----------------    -------      --------
                       1 Year            +35.6%          +33.4%        +1.7%
                       3 Years           +31.4           +31.2         +2.5
                       5 Years           +20.7           +20.3         +2.6
                      10 Years           +18.3           +18.1         +3.4
 


- --------------------------------------------------------------------------------
DIVIDENDS, CAPITAL  The Portfolio expects to pay dividends consisting of      
GAINS AND TAXES     ordinary income on a semi-annual basis. Capital gains     
                    distributions, if any, will be made annually. The         
The Portfolio pays  Portfolio is managed without regard to tax ramifications. 
semi-annual                                                                   
dividends and any   Dividend and capital gains distributions may be           
capital gains       automatically reinvested or received in cash. See         
annually            "Choosing a Distribution Option" for a description of     
                    these distribution methods.                               
                                                                              
                    In addition, in order to satisfy certain distribution     
                    requirements of the Tax Reform Act of 1986, the Portfolio 
                    may 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.                            

                                                                              11
                                                                               
<PAGE>


                    The Portfolio intends to continue to qualify for taxation
                    as a "regulated investment company" under the Internal
                    Revenue Code so that it will not be subject to federal
                    income tax to the extent its income is distributed to
                    shareholders. Dividends paid by the Portfolio from net
                    investment income and net short-term capital gains, whether
                    received in cash or reinvested in additional shares, will
                    be taxable to shareholders as ordinary income. For
                    corporate investors, 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
                    domestic (U.S.) sources.


                    Distributions paid by the Portfolio 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.
                    Long-term capital gains may be taxed at different rates
                    depending on how long the Fund held the securities. Capital
                    gains distributions are made when the Portfolio realizes
                    net capital gains on sales of portfolio securities during
                    the year. The Portfolio does not seek to realize any
                    particular amount of capital gains during a year; rather,
                    realized gains are a by-product 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 the
                    Portfolio realizes net capital losses.


                    Note that if you elect to receive 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 Portfolio. Also, keep in mind that
                    if you purchase shares in the Portfolio 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 Portfolio will notify you annually as to the tax status
                    of dividend and capital gains distributions paid by the
                    Portfolio.

A capital gain      A sale of shares of the Portfolio is a taxable event and  
or loss may be      may result in a capital gain or loss. A capital gain or   
realized upon       loss may be realized from an ordinary redemption of shares
exchange or         or an exchange of shares between two mutual funds (or two 
redemption          portfolios of a mutual fund).                             

                    Dividend distributions, capital gains distributions, and
                    capital gains or losses from redemptions and exchanges may
                    be subject to state and local taxes.


                    The Portfolio 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 employer
                    identification number and by certifying that you are not
                    subject to backup withholding.



12
                                                                               
<PAGE>



                    The Portfolio has obtained a Certificate of Authority to do
                    business as a foreign corporation in Pennsylvania and does
                    business and maintains an office in thatstate. In the
                    opinion of counsel, the shares of the Portfolio are exempt
                    from Pennsylvania personal property taxes.

                    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 Portfolio.

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

THE SHARE PRICE     The Portfolio's share price, or "net asset value" per
OF THE PORTFOLIO    share, is calculated by divid ing the total assets of the
                    Portfolio, less all liabilities, by the total number of
                    shares outstanding. The net asset value is determined as
                    of the close of the New York Stock Exchange (generally
                    4:00 p.m. Eastern time) on each day the exchange is open
                    for trading.

                    Portfolio securities for which market quotations are
                    readily available (includes those securities listed on
                    national securities exchanges, as well as those quoted on
                    the NASDAQ Stock Market) will be valued at the last quoted
                    sales price on the day the valuation is made. Such
                    securities which are not traded on the valuation date are
                    valued at the mean of the bid and ask prices. Price
                    information on exchange-listed securities is taken from the
                    exchange where the security is primarily traded. 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.

                    Short-term instruments (those acquired with remaining
                    maturities of 60 days or less) may be valued at cost, plus
                    or minus any amortized discount or premium, which
                    approximates market value.

                    Bonds and other fixed income 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. The prices provided by a pricing service
                    may be determined without regard to bid or last sale prices
                    of each security, but take into account institutional-size
                    transactions in similiar groups of securities as well as
                    any developments related to specific securities.

                    Other assets and securities for which no quotations are
                    readily available or which are restricted as to sale (or
                    resale) are valued by such methods as the Board of
                    Directors deems in good faith to reflect fair value.

                    The share price for the Portfolio can be found daily in the
                    mutual fund listings of most major newspapers under the
                    heading of Vanguard Funds.

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

GENERAL             The Fund is a Maryland corporation. The Articles of
INFORMATION         Incorporation permit the Directors to issue 1,000,000,000
                    shares of common stock, with a $.001 par value. The Board
                    of Directors has the power to designate one or more
                    classes ("series") of shares of common stock and to
                    classify or reclassify any unissued shares with respect to
                    such series. Currently the Fund is offering shares of one
                    series.

                    The shares of the Fund are fully paid and non-assessable;
                    have no preference as to conversion, exchange, dividends,
                    retirement or other features; and have no



                                                                              13


                                              
<PAGE>

                                                                               

                    preemptive rights. Such shares have non-cumulative voting
                    rights, meaning that the holders of more than 50% of the
                    shares voting for the election of Directors can elect 100%
                    of the Directors 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 Director or Directors 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 are held by CoreStates Bank,
                    Philadelphia, PA. The Vanguard Group, Inc., Valley Forge,
                    PA, serves as the Fund's Transfer and Dividend Disbursing
                    Agent. Price Waterhouse LLP, serves as independent
                    accountants for the Fund and will audit its financial
                    statements annually. The Fund is not involved in any
                    litigation.

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

14
                                                                               
<PAGE>


                               SHAREHOLDER GUIDE


OPENING AN          You may open a regular (non-retirement) account, either by 
ACCOUNT AND         mail or wire. Simply complete and return an Account        
PURCHASING          Registration Form and any required legal documentation,   
SHARES              indicating the amount you wish to invest. Your purchase    
                    must be equal to or greater than the $3,000 minimum        
                    initial investment requirement ($1,000 for Uniform         
                    Gifts/Transfers to Minors Act accounts, $500 minimum for   
                    an Education IRA). 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 $1,000       
                    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 the 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.                             


                    The Portfolio's shares generally are purchased at the
                    next-determined net asset value after your investment has
                    been received. The Portfolio is offered on a no-load basis
                    (i.e., there are no sales commissions or 12b-1 fees).

Purchase            1)  Because of the risks associated with common stock   
Restrictions            investments, the Portfolio 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      
                        Portfolio reserves the right to reject any specific 
                        purchase (and exchange purchase) request. The       
                        Portfolio also reserves the right to suspend the    
                        offering of shares for a period of time.            

                    2)  Vanguard will not accept third-party checks to
                        purchase shares of the Portfolio. Please be sure your
                        purchase check is made payable to the Vanguard Group.

Additional          Subsequent investments to regular accounts may be made by   
Investments         mail ($100 minimum), wire ($1,000 minimum), written         
                    exchange from another Vanguard Fund account ($100           
                    minimum), or Vanguard Fund Express. Subsequent investments  
                    to IRAs may be made by mail ($100 minimum) or written       
                    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.                                                    
                    ------------------------------------------------------------

                                                                              15
<PAGE>


   
                                                       ADDITIONAL INVESTMENTS TO
                               NEW ACCOUNT                 EXISTING ACCOUNTS    
Purchasing By Mail       Please include the amount                              
Complete and sign the    of your initial               Additional investments   
enclosed Account         investment on the             should include the       
Registration Form        registration form, make       Invest-by-Mail remittance
                         your check payable to The     form attached to your    
                         Vanguard Group-93 and         Fund confirmation        
                         mail to:                      statements. Please       
                                                       make your check payable
                         The Vanguard Group            to The Vanguard Group-93,
                         P.O. Box 2600                 write your account number
                         Valley Forge, PA 19482-2600   on your check and, using 
                                                       the return envelope      
                                                       provided, mail to the    
                                                       address indicated on the 
                                                       Invest-by-Mail Form.     
    

For express or           The Vanguard Group            All written requests    
registered mail,         455 Devon Park Drive          should be mailed to one 
send to:                 Wayne, PA 19087-1815          of the addresses        
                                                       indicated for new       
                                                       accounts. Do not send   
                                                       registered or express   
                                                       mail to the post office 
                                                       box address.            
                  ------------------------------------------------------------
Purchasing By Wire              CORESTATES BANK, N.A.
Money should be                 ABA 031000011
wired to:                       CORESTATES NO. 0101 9897
                                ATTN: VANGUARD
Before Wiring                   VANGUARD GROWTH AND INCOME PORTFOLIO
Please contact                  ACCOUNT NUMBER
Client Services                 ACCOUNT REGISTRATION
(1-800-662-2739)

                    To assure proper receipt, please be sure your bank includes
                    the Fund 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 Bank are open for business.
                    ------------------------------------------------------------
Purchasing By       Telephone exchanges are not permitted to or from
Exchange (from a    non-retirement accounts in  Vanguard Growth and     
Vanguard account)   Income Portfolio. (The Fund will accept telephone exchange  
                    requests for retirement accounts only.) You may, however,   
                    purchase shares of the Portfolio by exchange from another   
                    Vanguard Fund account by providing the appropriate          
                    information on your Account Registration Form. The Portfolio
                    reserves the right to refuse any exchange purchase request. 
                    ------------------------------------------------------------
Purchasing By Fund  The Fund Express Special Purchase option lets you move money
Express             from your bank account to your Vanguard account on an "as 
                    needed" basis. Or if you choose the Automatic Investment
Special Purchase    option, money will be moved automatically from your bank  
and Automatic       account to your Vanguard account on the schedule (monthly,
Investment          bimonthly                                                 
                    
16



<PAGE>


                    [every other month], quarterly, semiannually or annually)
                    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 two weeks before using
                    the service.

- --------------------------------------------------------------------------------
CHOOSING A          You must select one of four distribution options:      
DISTRIBUTION                                                               
OPTION              1.  Automatic Reinvestment Option -- Both dividend and 
                        capital 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.  Cash Capital Gain Option -- Your capital gains
                        distributions will be paid in cash and your dividends
                        will be reinvested in additional Fund shares.

                    4.  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).

                    If a shareholder has chosen to receive dividend and/or
                    capital gains distributions in cash, and the postal or
                    other delivery service is unable to deliver checks to the
                    shareholder's address of record, we will change the
                    distribution option so that all dividends and other
                    distributions are automatically reinvested in additional
                    shares. We will not pay interest on uncashed distribution
                    checks.

                    In addition, an option to invest your cash dividend 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 dividend 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 Portfolio is required to        
                    distribute net capital gains and dividend income to         
Investors should    Portfolio shareholders. These distributions are made to all 
ask about the       shareholders who own Portfolio shares as of the             
timing of capital   distribution's record date, regardless of how long the      
gains and dividend  shares have been owned. Purchasing shares just prior to the 
distributions       record date could have a significant impact on your tax     
before investing    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 Portfolio 
                    shares for just a short period of time. (Taxes are due on   
                    the distributions even if the dividend or capital gain is   
                    reinvested in additional Portfolio 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 net asset                                   



                                                                              17
                                                                               
<PAGE>

                                                                               
   
                    value 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 Portfolio's
                    annual capital gains distribution normally occurs in
                    December, while income dividends are generally paid
                    semi-annually in June and December. In addition, the
                    Portfolio may be required to make supplemental dividend or
                    capital gains distributions at some other time during the
                    year. For additional information on distributions and
                    taxes, see the section titled "Dividends, Capital Gains and
                    Taxes."

- --------------------------------------------------------------------------------
IMPORTANT           The easiest way to establish optional Vanguard services on 
INFORMATION         your account is to select the options you desire when you  
                    complete your Account Registration Form.                   

Establishing        If you wish to add options later, you may need to provide 
Optional            Vanguard with additional information and a signature      
Services            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      
                    signature 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 Portfolio will not cancel any trade (e.g., a purchase,
                    exchange or redemption) believed to be authentic once the
                    trade request has been received in writing or by telephone.
                     

Electronic          You may receive a prospectus for the Fund or any of the   
Prospectus          Vanguard Funds in an electronic format through Vanguard's 
Delivery            website at www.vanguard.com. For additional information   
                    please see "Other Vanguard Services -- Computer Access."  

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

WHEN YOUR           Your trade date is the date on which your account is        
ACCOUNT WILL BE     credited. If your purchase is made by check, Federal Funds  
CREDITED            wire or exchange and is received by the close of trading on 
                    the New York Stock Exchange (the "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.

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


18


<PAGE>

                                                                               


SELLING YOUR        You may withdraw any portion of the funds in your account by
SHARES              redeeming shares at any time. (Please see "Important        
                    Redemption Information.") You generally 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. No interest will  
                    accrue on amounts represented by uncashed redemption checks.

   
Selling By Mail     Requests should be mailed to The Vanguard Group, Vanguard
                    Growth and Income Portfolio, P.O. Box 1120, Valley Forge, PA
                    19482-1120. (For express or registered mail, send your
                    request to The Vanguard Group, Vanguard Growth and Income
                    Portfolio, 455 Devon Park Drive, Wayne, PA 19087-1815.)
    


                    The redemption price of shares will be the Fund's net asset
                    value next determined after Vanguard has received all
                    required documents in Good Order.
                    ------------------------------------------------------------
Definition of Good  Good Order means that the request includes the following:
Order
                    1. The account number and Fund name.
                    2. The amount of the transaction (specified in dollars or
                       shares).
                    3. The signatures of all owners exactly as they are
                       registered on the account.
                    4. Any required signature guarantees.

                    5. Other supporting legal documentation that may be
                       required in the case of estates, corporations, trusts and
                       certain other accounts.

                    6. Any certificates that you are holding for the account.

                    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 Note: As a protection against fraud, your telephone
                    mail redemption privilege will be suspended for 15 calendar
                    days following any expedited address change to your
                    account. An expedited address change is one that is made by
                    telephone or in writing, without the signatures of all
                    account owners. 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
                    account to your bank account according to the schedule you
Automatic           have selected. The Special Redemption option lets you move
Withdrawal          money from your Vanguard account to your bank account on 
& Special           an "as  needed" basis. To establish these Fund Express     
Redemption          options, please provide the appropriate information on the 
                    Account Registration Form. We will send you a confirmation 
                    of your Fund Express service; please wait two weeks before 
                    using the service.

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



                                                                              19
<PAGE>

                                                                               

Selling by          You may sell shares by making an exchange into another
Exchange            Vanguard Fund account. Exchanges may be made only by mail;
                    telephone exchanges between non-retirement accounts are not
                    accepted for the Portfolio.
                    ------------------------------------------------------------
Important           Shares purchased by check or Fund Express may be redeemed at
Redemption          any time. However, your redemption proceeds will
Information         not be paid until payment for the purchase is collected,    
                    which may take up to ten calendar days.                     

                    ------------------------------------------------------------
Delivery of         Redemption requests received by telephone prior to the close
Redemption          of trading on the Exchange are processed on the day of      
Proceeds            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, except as
                    described above in "Important Redemption Information."
    
                     

                    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 Portfolio 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.

                    If the Board of Directors 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
                    "Statements and Reports" for additional information.
                    ------------------------------------------------------------

Low Balance fee     Due to the relatively high cost of maintaining smaller      
and Minimum         accounts, the Fund will automatically deduct a $10 annual   
Account Balance     fee in either June or December from non-retirement accounts 
Requirement         with balances falling below $2,500 ($500 for Uniform        
                    Gifts/Transfers to Minors Act accounts). The fee generally  
                    will be waived for investors whose aggregate Vanguard assets
                    exceed $50,000.                                             


                    In addition, the Portfolio reserves the right to liquidate
                    any non-retirement account that is below the minimum
                    initial investment amount of $3,000. If at any time your
                    total investment does not have a value of at least $3,000,
                    you may be


20
<PAGE>

                    notified that your account is below the Portfolio'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
                    registered shareholder.

                    Vanguard will not liquidate your account if it has fallen
                    below $3,000 solely as a result of declining markets (i.e.,
                    a decline in a Portfolio's net asset value).

   
- --------------------------------------------------------------------------------
EXCHANGING YOUR     Should your investment goals change, you may exchange your
SHARES              shares of Vanguard Growth and Income Portfolio for those of
                    other available Vanguard funds. Exchanges to or from
                    Vanguard Growth and Income Portfolio may be made only by
                    mail. Telephone exchanges between non-retirement accounts
                    are not accepted for the Portfolio.
    

Exchanging By Mail  Please be sure to include on your exchange request the name
                    and account number of your current Fund, 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 The Vanguard Group, Vanguard
                    Growth and Income Portfolio, P.O. Box 1120, Valley Forge,
                    PA 19482-1120. (For express or registered mail, send your
                    request to The Vanguard Group, Vanguard Growth and Income
                    Portfolio, 455 Devon Park Drive, Wayne, PA 19087-1815.)
                    ------------------------------------------------------------
Exchanging Online   You may use your personal computer to exchange shares of
                    most Vanguard funds by accessing our website
                    (www.vanguard.com). To establish this service for your
                    account, you must first register through the website. We
                    will then send to you, by mail, an account access password
                    that will enable you to make online exchanges.

                    The Vanguard funds that you cannot purchase or sell through
                    online exchange are Vanguard Index Trust, Vanguard Balanced
                    Index Fund, Vanguard International Equity Index Fund,
                    Vanguard REIT Index Portfolio, Vanguard Total International
                    Portfolio, and Vanguard Growth and Income Portfolio
                    (formerly known as Vanguard Quantitative Portfolios). These
                    funds do permit online exchanges within IRAs and other
                    retirement accounts.

                    ------------------------------------------------------------
Important Exchange  Before you make an exchange, you should consider the 
Information         following:

                    o 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).

                    o An exchange is treated as a redemption and a purchase.
                      Therefore, you could realize a taxable gain or loss on the
                      transaction.


                    o Exchanges by telephone are accepted only if the
                      registrations and the taxpayer identification numbers of
                      the two accounts are identical.

                    o To exchange into an account with a different registration
                      (including a different name, address, or taxpayer
                      identification number), you must provide Vanguard with
                      written instructions that include the guaranteed
                      signatures of all current account owners.



                                                                              21

                                                                               
                                                                               
                                                                               
<PAGE>


                    o The shares to be exchanged must be on deposit and not held
                      in certificate form.
                                                                           
                    o New accounts are not currently accepted in
                      Vanguard/Windsor Fund.

                    o The redemption price of shares redeemed by exchange is the
                      net asset value next determined after Vanguard has
                      received all required documentation in Good Order.

                    o 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 Portfolio 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 Portfolio'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 Portfolio and increase transaction costs, 
                    the Portfolio 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 the Portfolio during any twelve month
                    period. "Substantive" means either a dollar amount or a
                    series of movements between Vanguard funds that Vanguard
                    determines, in its sole discretion, could have an adverse
                    impact on the management of the Portfolio. Notwithstanding
                    these limitations, the Portfolio 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 or Fund  
INFORMATION         Express redemptions) 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 and
                       address used in the registration; and (iv) the Social
                       Security or employer identification number listed on the
                       account.

                    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.



22
                                                                               
<PAGE>

                                                                               

                    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.
- --------------------------------------------------------------------------------
TRANSFERRING        You may transfer the registration of any of your Portfolio
REGISTRATION        shares to another person by completing a transfer form and
                    sending it to: The Vanguard Group, Attention: Transfer
                    Department, P.O. Box 1110, Valley Forge, PA 19482-1110. The
                    request must be in Good Order. To obtain a transfer form and
                    complete instructions, please call our Client Services
                    Department (1-800-662-2739).
- --------------------------------------------------------------------------------
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 during
                    the calendar year, 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 along with
                    their Portfolio Summary Statement. Please call our Client
                    Services Department (1-800-662-2739) for information.

                    Financial reports on the Fund will be mailed to you
                    semiannually, according to the Fund's fiscal year-end. To
                    keep the Fund's cost as low as possible (so that you and
                    other shareholders can keep more of the Fund's investment
                    earnings), Vanguard attempts to eliminate duplicate
                    mailings to the same address. When we find that two or more
                    Fund shareholders have the same last name and address, we
                    send just one Fund report to that address--instead of
                    mailing separate reports to each shareholder. If you want
                    us to send separate reports, however, you may notify our
                    Investor Information Department at 1-800-662-7447.
- --------------------------------------------------------------------------------
OTHER VANGUARD      For more information about any of these services, please
SERVICES            call our Investor Information Department at 1-800-662-7447.

Vanguard Direct     With Vanguard's Direct Deposit Service, most U.S.
Deposit Service     Government 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

                                                                              23
                                                                               
<PAGE>


                    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. Please contact our Client Services
                    Department at 1-800-662-2739 for additional information.

Vanguard Fund       Vanguard's Fund Express allows you to transfer money
Exchange Service    between your Portfolio 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.

                    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             dividend and/or capital gains distributions automatically
                    from your Portfolio account, one business day after the
                    Portfolio'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) system. 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(R)     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. In addition, you may
                    perform investment exchanges of Vanguard Fund shares and
                    redemptions by check using Tele-Account. 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).

Vanguard Online     Use your personal computer to learn more about Vanguard's
www.vanguard.com    funds and services; keep in touch with your Vanguard
                    accounts; map out a long-term investment strategy; initiate
                    certain transactions; and ask questions, make suggestions,
                    and send messages to Vanguard.

                    Our education-oriented website provides timely news and
                    information about Vanguard's funds and services; an online
                    "university" that offers a variety of mutual fund classes;
                    and easy-to-use, interactive tools to help you create your
                    own investment and retirement strategies.
- --------------------------------------------------------------------------------


24
<PAGE>

                                                                               


                [GRAPHIC OMITTED]                        [GRAPHIC OMITTED]



               -----------------
               The Vanguard Group                       P R O S P E C T U S
               P.O. Box 2600
               Valley Forge, PA 19482
                
               Investor Information                        APRIL 17, 1998
                Department:
               1-800-662-7447 (SHIP)                     FORMERLY KNOWN AS
                                                              VANGUARD
               Client Services                              QUANTITATIVE
                Department:                                  PORTFOLIOS
               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.
               P.O. Box 2600
               Valley Forge, PA 19482


























               P093


<PAGE>


                                    PART B

                    VANGUARD QUANTITATIVE PORTFOLIOS, INC.

                      STATEMENT OF ADDITIONAL INFORMATION
                                April 17, 1998


     This Statement is not a prospectus but should be read in conjunction with
the Fund's Prospectus for Vanguard Growth and Income Portfolio (the
"Portfolio") dated April 17, 1998. (Prior to April 30, 1997, the Portfolio was
known as Vanguard Quantitative Portfolios.) To obtain the Prospectus please
call:




                        Investor Information Department
                                1-800-662-7447



                               TABLE OF CONTENTS





                                                                           Page
                                                                          -----
Investment Policies ...................................................    B-1
Investment Limitations ................................................    B-5
Yield and Total Return ................................................    B-7
Purchase of Shares ....................................................    B-7
Redemption of Shares ..................................................    B-7
Management of the Fund ................................................    B-8
Investment Advisory Services ..........................................   B-11
Portfolio Transactions ................................................   B-12
Financial Statements ..................................................   B-13
Performance Measures ..................................................   B-14
General Information ...................................................   B-16
                            

                              INVESTMENT POLICIES

   
     Futures Contracts. The Portfolio may enter into futures contracts, options,
and options on futures contracts for the purpose of simulating full investment
and reducing transaction costs. 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. Assets committed to futures
contracts will be segregrated at the Portfolio's custodian bank to the extent
required by law.
    

     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," or "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.


                                                                             B-1
<PAGE>

     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 with margin
deposits which 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, a 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.

     Traders in futures contracts may be broadly classified as either "hedgers"
or "speculators." Hedgers use the futures markets primarily to offset
unfavorable changes in the value of securities otherwise held for investment
purposes or expected to be acquired by them. Speculators are less inclined to
own the securities underlying the futures contracts which they trade, and use
futures contracts with the expectation of realizing profits from fluctuations
in the prices of underlying securities. The Portfolio intends to use futures
contracts only for bona fide hedging purposes.

     Regulations of the CFTC applicable to the Portfolio require that all of
its futures transactions constitute bona fide hedging transactions except to
the extent that the aggregate initial margins and premiums required to
establish any non-hedging positions do not exceed five percent of the value of
the Fund's portfolio. The 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 securities it intends to purchase. As
evidence of this hedging interest, the 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 Portfolio's exposure 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 the underlying securities.

     Restrictions on the Use of Futures Contracts. The 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, the 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, the Portfolio would continue to be required to make daily cash
payments to maintain its required margin. In such situations, if the Portfolio
has insufficient cash, it may have to sell portfolio securities to meet daily
margin requirements at a time when



B-2
<PAGE>

   
it may be disadvantageous to do so. In addition, the Portfolio may be required
to make delivery of the instruments underlying futures contracts it holds. The
inability to close options and futures positions also could have an adverse
impact on the ability to hedge effectively.
    
     The 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. Additionally, the Portfolio
bears the risk that the Adviser will incorrectly predict future market trends.
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.
   
     Use of futures transactions by the Portfolio does involve the risk of
imperfect or no correlation where the securities underlying futures contracts
are different than the portfolio securities being hedged. It is also possible
that the 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 the 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 the risk that the Adviser will incorrectly predict stock market 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 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. The Portfolio is required for
federal income tax purposes to recognize as income for each taxable year its
net unrealized gains and losses on certain 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. The Portfolio may be required to defer the recognition of
losses on futures contracts to the extent of any unrecognized gains on related
positions held by the Portfolio.


                                                                             B-3
<PAGE>


     In order for the 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, gains from the sale of
securities or of foreign currencies, or other income derived with respect to
the Portfolio's business of investing in securities. 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.

     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
transactions. 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 distributions.

     Repurchase Agreements. The Portfolio may invest in repurchase agreements
with commercial banks, brokers or dealers to generate net investment 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 Federal Reserve member bank with minimum assets
of at least $2 billion or a registered securities 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
Portfolio's custodian bank until repurchased. The Fund's Board of Directors
will monitor the Portfolio's repurchase agreement transactions and will
establish guidelines and standards for review of the creditworthiness of any
bank, broker or dealer party to a repurchase agreement with the Portfolio. No
more than an aggregate of 15% of the Portfolio's net assets, at the time of
investment, will be invested in repurchase agreements having maturities longer
than seven days and securities subject to legal or contractual restrictions on
resale, for which there are no readily available market quotations. From time
to time, the Fund's Board of Directors may determine that certain restricted
securities known as Rule 144A securities are liquid and not subject to the 15%
limitation described above.

     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 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 Portfolio's
management acknowledges these risks, it is expected that they can be controlled
through careful monitoring procedures.

     Lending of Securities. The Portfolio may lend its securities 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 portfolio
securities, the 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. The Portfolio may lend its portfolio
securities to qualified brokers, dealers, banks or


B-4
<PAGE>
   
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 (the "1940 Act"), 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, a letter of credit issued by a domestic U.S.
bank, or securities issued or guaranteed by the United States Government having
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 the 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 three 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 Portfolio's
Board of Directors.
    
     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. 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.


                             INVESTMENT LIMITATIONS

     The following restrictions are fundamental policies and cannot be changed
without approval of the holders of a majority of the outstanding shares of the
Portfolio or, if less, 67% of the shares represented at a meeting of
shareholders at which the holders of 50% or more of the shares are represented.
The Portfolio may not under any circumstances:

      1) Invest for the purpose of exercising control over the management of
   any company;
   
      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 securities of other investment companies, except as may be
   acquired as part of a merger, consolidation or acquisition of assets
   approved by the Portfolio's shareholders or otherwise to the extent
   permitted by Section 12 of the 1940 Act. The Portfolio will invest only in
   investment companies which have investment objectives and investment
   policies consistent with those of the Portfolio;

      4) 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 investment securities;

      5) 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 Portfolio's investment in The Vanguard Group, Inc.);


                                                                             B-5
<PAGE>

      6) 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;
   
      7) Invest in commodities or real estate, although the Portfolio may use
   stock futures contracts or options for hedging purposes only, and provided
   that not more than 5% of the Portfolio's assets are required as a futures
   contract deposit and not more than 20% of the Portfolio's assets are
   committed to futures contracts and options transactions, and, 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 the Portfolio may invest in futures contracts and options transactions
   as set forth above in (7);
    
      9) Purchase or retain any security if (i) one or more Officers, Directors
   or partners of the Portfolio or its investment adviser individually own or
   would own, directly or beneficially, more than 1/2 of 1% of the securities
   of such issuer, and (ii) in the aggregate such persons own or would own
   more than 5% of such securities;

      10) Make loans except (i) by purchasing bonds, debentures or similar
   obligations (including repurchase agreements, subject to the limitation
   described in (6) above) which are publicly distributed, and (ii) by lending
   its securities to banks, brokers, dealers and other financial institutions
   so long as such loans are not inconsistent with the 1940 Act or the Rules
   and Regulations or interpretations of the Securities and Exchange
   Commission thereunder;

      11) Pledge, mortgage, or hypothecate any of its assets to an extent
   greater than 5% of its total assets;

      12) Invest directly in interests in oil, gas or other mineral exploration
   or development programs;
   
      13) Invest more than 25% of the value of its total assets in any one
   industry; or
    
      14) Purchase or sell options or warrants or engage in arbitrage
   operations except as described above in (7).

     The above-mentioned investment limitations are considered at the time the
investment securities are purchased. Notwithstanding these limitations, the
Portfolio 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 Portfolio and one or more other investment
companies and is primarily engaged in the business of providing, at-cost,
management, administrative, distribution or related services to the Portfolio
and other investment companies. See "The Vanguard Group." As a non-fundamental
policy, the Portfolio will not invest more than 5% of its total assets in the
securities of companies that, together with their predecessors, have been in
continuous operation for less than three years.



B-6
<PAGE>

                            YIELD AND TOTAL RETURN

     The yield of the Portfolio for the 30-day period ended December 31, 1997
was +1.60%.
   
     The average annual total return of the Portfolio for the 1-, 5- and 10-year
periods ended December 31, 1997 was +35.59%, +20.74% and +18.33%, respectively.
Total return is computed by finding the average compounded rates of return over
the one-, five- and ten-year 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. Note: Prior to April 30, 1997, the Portfolio was known
as Vanguard Quantitative Portfolios.
    
                              PURCHASE OF SHARES
   
     The Portfolio reserves the right in its sole discretion: (i) to suspend the
offerings of its shares, (ii) to reject purchase orders when in the judgment of
management such rejection is in the best interest of the Portfolio, and (iii)
to reduce or waive the minimum investment for or any other restrictions on
initial and subsequent investments for certain fiduciary accounts or under
circumstances where certain economies can be achieved in sales of the
Portfolio's shares.
    
                             REDEMPTION OF SHARES
   
     The 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 the 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.
    
     No charge is made by the 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.

     The Portfolio 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
Portfolio 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 Directors may deem advisable; however, payment will be made wholly
in cash unless the Directors believe that economic or market conditions exist
which would make such a practice detrimental to the best interests of the
Portfolio. If redemptions are paid in investment securities, such securities
will be valued as set forth in the Prospectus under "The Share Price of the
Portfolio" and a redeeming shareholder would normally incur brokerage expenses
if he converted these securities to cash.
   
     The Portfolio has authorized Charles Schwab & Co., Inc. ("Schwab") to
accept on its behalf purchase and redemption orders under certain terms and
conditions. Schwab is also authorized to designate other intermediaries to
accept purchase and redemption orders on the Portfolio's behalf subject to those
terms and conditions. Under this arrangement, the Portfolio will be deemed to
have received a purchase or redemption order when Schwab or, if applicable,
Schwab's authorized designee, accepts the order in accordance with the
Portfolio's instructions. Customer orders that are properly transmitted to the
Portfolio by Schwab, or if applicable, Schwab's authorized designee, will be
priced as follows:
    
     Orders received by Schwab before 3 p.m. Eastern time on any business day,
will be sent to Vanguard that day and your share price will be based on the
Portfolio's net asset value calculated at the close of trading that day. Orders
received by Schwab after 3 p.m. Eastern time, will be sent to Vanguard on the
following business day and your share price will be based on the Portfolio's
net asset value calculated at the close of trading that day.



                                                                             B-7
<PAGE>
                            MANAGEMENT OF THE FUND

Directors and Officers

     The Officers of the Fund manage its day-to-day operations and are
responsible to the Fund's Board of Directors. The Directors set broad policies
for each Fund and choose its Officers. The following is a list of Directors 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 Directors
and Officers of the Fund is Post Office Box 876, Valley Forge, PA 19482.

JOHN C. BOGLE, (DOB: 5/8/1929) Senior Chairman and Director*
   Senior Chairman and Director of The Vanguard Group, Inc., and of each of
   the investment companies in The Vanguard Group; Director of The Mead
   Corporation, General Accident Insurance, and Chris-Craft Industries, Inc.

JOHN J. BRENNAN, (DOB: 7/29/1954) Chairman, Chief Executive Officer & Director*
   Chairman, Chief Executive Officer and Director of The Vanguard Group, Inc.
   and of each of the investment companies in The Vanguard Group.

ROBERT E. CAWTHORN, (DOB: 9/28/1935) Director
   Chairman Emeritus and Director of Rhone-Poulenc Rorer, Inc.; Managing
   Director of Global Health Care Partners/DLJ Merchant Banking Partners;
   Director of Sun Company, Inc. and Westinghouse Electric Corporation.

BARBARA BARNES HAUPTFUHRER, (DOB: 10/11/1928) Director
   Director of The Great Atlantic and Pacific Tea Company, IKON Office
   Solutions, Inc., Raytheon Company, Knight-Ridder, Inc., Massachusetts
   Mutual Life Insurance Co., and Ladies Professional Golf Association;
   Trustee Emerita of Wellesley College.

BRUCE K. MACLAURY, (DOB: 5/7/1931) Director
   President Emeritus of The Brookings Institution; Director of American
   Express Bank, Ltd., The St. Paul Companies, Inc., and National Steel
   Corporation.

BURTON G. MALKIEL, (DOB: 8/28/1932) Director
   Chemical Bank Chairman's Professor of Economics, Princeton University;
   Director of Prudential Insurance Co. of America, Amdahl Corporation, Baker
   Fentress & Co., The Jeffrey Co., and Southern New England
   Telecommunications Company.

ALFRED M. RANKIN, JR., (DOB: 10/8/1941) Director
   Chairman, President, Chief Executive Officer, and Director of NACCO
   Industries, Inc.; Director of The BFGoodrich Company and The Standard
   Products Company.

JOHN C. SAWHILL, (DOB: 6/12/1936) Director
   President and Chief Executive Officer of The Nature Conservancy; formerly,
   Director and Senior Partner of McKinsey & Co., and President of New York
   University; Director of Pacific Gas and Electric Company, Procter & Gamble
   Company, and NACCO Industries.

JAMES O. WELCH, JR., (DOB: 5/13/1931) Director
   Retired Chairman of Nabisco Brands, Inc.; retired Vice Chairman and
   Director of RJR Nabisco; Director of TECO Energy, Inc., and Kmart
   Corporation.

J. LAWRENCE WILSON, (DOB: 3/2/1936) Director
   Chairman and Chief Executive Officer of Rohm & Haas Company; Director of
   Cummins Engine Company, and The Mead Corporation; and Trustee of Vanderbilt
   University.

RAYMOND J. KLAPINSKY, (DOB: 12/7/1938) Secretary*
   Managing Director and Secretary of The Vanguard Group, Inc.; Secretary of
   each of the investment companies in The Vanguard Group.

RICHARD F. HYLAND, (DOB: 3/22/1937) Treasurer*
   Treasurer of The Vanguard Group, Inc. and of each of the investment
   companies in The Vanguard Group.

KAREN E. WEST, (DOB: 9/13/1946) Controller*
   Principal 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.



B-8
<PAGE>

 
     The Vanguard Group. Vanguard Growth and Income Portfolio is a portfolio of
Vanguard Quantitative Portfolios, Inc., 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 Directors (Trustees) of each
Fund. In addition, each Fund bears its own direct expenses such as legal,
auditing and custodian fees.

     The Fund's Officers are also Officers and employees of Vanguard. No
Officer or employee owns, or is permitted to own, any securities of any
external adviser for the Funds.

     The Vanguard Group adheres to a Code of Ethics established pursuant to
Rule 17j-1 under the Investment Company Act of 1940. The Code is designed to
prevent unlawful practices in connection with the purchase or sale of
securities by persons associated with Vanguard. Under Vanguard's Code of Ethics
certain Officers and employees of Vanguard who are considered access persons
are permitted to engage in personal securities transactions. However, such
transactions are subject to procedures and guidelines substantially similar to
those recommended by the mutual fund industry and approved by the U.S.
Securities and Exchange Commission.
   
     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 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, 1997,
the Fund had contributed capital of $138,000 to Vanguard, representing 0.6% of
Vanguard's capitalization. The Funds' Service Agreement provides for the
following arrangement: (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, 1997, the Portfolio's share of Vanguard's actual
net costs of operation relating to management and administrative services
(including transfer agency) totaled approximately $3,537,000.

     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 the 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.


                                                                             B-9
<PAGE>

   
     One half of the distribution expenses of a marketing and promotional
nature is allocated among the Funds based upon relative net assets. The
remaining one half of those 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 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 year ended December 31,
1997, the Portfolio paid approximately $381,000 of the Group's distribution and
marketing expenses which represented an effective annual rate of .02 of 1% of
the Portfolio's average net assets.
    
     Investment Advisory Services. Vanguard provides investment advisory
services to Vanguard Money Market Reserves, Vanguard Treasury Fund, Vanguard
Admiral Funds, Vanguard Municipal Bond Fund, several Portfolios of Vanguard
Fixed Income Securities Fund, Vanguard Institutional Index Fund, Vanguard Bond
Index Fund, several Portfolios of Vanguard Variable Insurance Fund, Vanguard
California Tax-Free Fund, Vanguard Florida Insured Tax-Free Fund, Vanguard New
Jersey Tax-Free Fund, Vanguard New York Tax-Free Fund, Vanguard Ohio Tax-Free
Fund, Vanguard Pennsylvania Tax-Free Fund, Vanguard Balanced Index Fund,
Vanguard Index Trust, Vanguard International Equity Index Fund, the REIT Index
Portfolio of Vanguard Specialized Portfolios, the Total International Portfolio
of Vanguard STAR Fund, Vanguard Tax-Managed Fund, the Aggressive Growth
Portfolio of Vanguard Horizon Fund, a portion of Vanguard/Windsor II, a portion
of Vanguard/Morgan Growth Fund, 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 using these services.

Director/Trustee Compensation
   
     The individuals in the table on page 11 serve as Directors/Trustees of all
Vanguard Funds, and each Fund pays a proportionate share of the
Directors'/Trustees' compensation. The Funds employ their Officers on a shared
basis, as well. However, Officers are compensated by The Vanguard Group, Inc.,
not the Funds.
    
     Independent Directors/Trustees. The Funds compensate their independent
Directors/Trustees--that is, the ones who are not also officers of the Fund--in
three ways:

   o The independent Directors/Trustees receive an annual fee for their
     service to the Funds, which is subject to reduction based on absences from
     scheduled Board meetings.

   o The independent Directors/Trustees are reimbursed for the travel and
     other expenses that they incur in attending Board meetings.

   o Upon retirement, the independent Directors/Trustees receive an aggregate
     annual fee of $1,000 for each year served on the Board, up to fifteen
     years of service. This annual fee is paid for ten years following
     retirement, or until the Directors'/Trustees' death.

     "Interested" Directors/Trustees. The Funds' interested
Directors/Trustees--Messrs. Bogle and Brennan--receive no compensation for
their service in that capacity. However, they are paid in their role as
Officers of The Vanguard Group, Inc.
   
     Compensation Table. The following table provides compensation details for
each of the Directors. For the Portfolio, we list the amounts paid as
compensation and accrued as retirement benefits by the Fund for each Director.
In addition, the table shows the total amount of benefits that we expect each
Director/Trustee to receive from all Vanguard Funds upon retirement, and the
total amount of compensation paid to each Director/Trustee by all Vanguard
Funds. All information shown is for the fiscal year ended December 31, 1997.
    


B-10
<PAGE>


                     VANGUARD GROWTH AND INCOME PORTFOLIO
                              COMPENSATION TABLE



<TABLE>
<CAPTION>
                                    Aggregate     Pension or Retirement       Estimated         Total Compensation
                                  Compensation     Benefits Accrued As     Annual Benefits    From All Vanguard Funds
Names of Directors                  From Fund     Part of Fund Expenses    Upon Retirement     Paid to Directors(2)
- -------------------------------  --------------  -----------------------  -----------------  ------------------------
<S>                              <C>             <C>                      <C>                <C>
John C. Bogle(1) ..............       None                None                  None                   None
John J. Brennan(1) ............       None                None                  None                   None
Barbara Barnes Hauptfuhrer.....       $ 429               $ 62                 $15,000                $70,000
Robert E. Cawthorn ............       $ 429               $ 52                 $13,000                $70,000
Bruce K. MacLaury .............       $ 455               $ 58                 $12,000                $65,000
Burton G. Malkiel .............       $ 431               $ 41                 $15,000                $70,000
Alfred M. Rankin, Jr. .........       $ 429               $ 33                 $15,000                $70,000
John C. Sawhill ...............       $ 429               $ 39                 $15,000                $70,000
James O. Welch, Jr. ...........       $ 429               $ 48                 $15,000                $70,000
J. Lawrence Wilson ............       $ 429               $ 34                 $15,000                $70,000
</TABLE>


(1) As "Interested Directors," Messrs. Bogle and Brennan receive no
    compensation for their service as Directors.
(2) The amounts reported in this column reflect the total compensation paid to
    each Director for his or her service as Director or Trustee of 35 Vanguard
    Funds (34 in the case of Mr. Malkiel; 28 in the case of Mr. MacLaury).


                         INVESTMENT ADVISORY SERVICES

     The Fund employs Franklin Portfolio Associates LLC ("Associates") under an
advisory agreement dated April 1, 1996, to manage the investment and
reinvestment of the Portfolio's assets and to continuously review, supervise
and administer the Portfolio's investment program. Associates discharges its
responsibilities subject to control of the Officers and Directors of the Fund.

     The Portfolio pays Associates a fee at the end of each fiscal quarter,
calculated by applying a quarterly rate, based on the following annual
percentage rates, to the Portfolio's average month-end net assets for the
quarter:




                             Net Assets            Rate
                       ----------------------   ----------
                         First $100 million     0.30%
                          Next $650 million     0.15%
                          Over $750 million     0.10%
 

     The Basic Fee paid to Associates may be increased or decreased by applying
an adjustment formula based on the Portfolio's investment performance. Such
formula provides for an increase or decrease in the Basic Fee in an amount
equal to .20% per annum (.05% per quarter) of the first $100 million of average
month-end net assets of the Portfolio, and .10% per annum (.025% per quarter)
of average month-end net assets over $100 million, if the Portfolio's
investment performance for the thirty-six months preceding the end of the
quarter is six percentage points or more above or below, respectively, the
investment record of the Standard & Poor's 500 Composite Stock Price Index (the
"S&P Index") for the same period; or by an amount equal to .10% per annum
(.025% per quarter) of the first $100 million of average month-end net assets
and .05% per annum (.0125% per quarter) of average month-end net assets over
$100 million, if the Portfolio's



                                                                            B-11
<PAGE>


investment performance for such thirty-six months is three or more but less
than six percentage points above or below, respectively, the investment record
of the S&P Index for the same period.

     For example, if the average net assets of the Portfolio were $100 million
or less, and its investment performance for the preceding three-year period was
more than six percentage points above the S&P Index, the total fee would be
0.50% of average net assets, consisting of the Basic Fee of 0.30%, and an
Incentive Fee or 0.20%. Conversely, if performance were six percentage points
below the S&P, the total fee would be 0.10% of net assets-- the Basic Fee of
0.30%, adjusted for a penalty of 0.20%. Above assets levels of $100 million,
both the Basic Fee and the Incentive Fee are reduced, as described above.

     The present agreement continues until March 31, 1999. The agreement is
renewable thereafter, for successive one-year periods, only if each renewal is
specifically approved by a vote of the Fund's Board of Directors, including the
affirmative votes of a majority of the Directors who are not parties to the
contract of "interested persons" (as defined in the 1940 Act) of any such
party, cast in person at a meeting called for the purpose of considering such
approval. In addition, the question of continuance of the agreement may be
presented to the shareholders of the Portfolio; in such event, continuance
shall be effected only if approved by the affirmative vote of a majority of the
outstanding voting securities of the Portfolio. The agreement is automatically
terminated if assigned, and may be terminated without penalty at any time (1)
either by vote of the Board of Directors of the Fund or by vote of the
Portfolio's outstanding voting securities on 60 days' written notice to
Associates, or (2) by Associates upon 90 days' written notice to the Portfolio.

     The Fund's Board of Directors may, without the approval of shareholders,
provide for:

      (i) 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;

      (ii) A change in the terms of an advisory agreement; and

      (iii) 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, which shall include the information concerning
the adviser that would have normally been included in a proxy statement.

     During the years ended December 31, 1995, 1996 and 1997, the Portfolio
paid investment advisory fees of approximately $1,280,000, $1,646,000, and
$2,231,000 before a decrease of $244,000 based on performance, respectively.

     Description of Associates. Associates is a Delaware corporation and is a
wholly-owned indirect subsidiary of Mellon Bank Corporation that has no
affiliation to The Franklin/Templeton Group of Funds or Franklin Resources,
Inc.


                            PORTFOLIO TRANSACTIONS

     The investment advisory agreement authorizes the Adviser (with the
approval of the Fund's Board of Directors) to select the brokers or dealers
that will execute the purchases and sales of portfolio securities for the
Portfolio and directs the Adviser to use its best efforts to obtain the best
available price and most favorable execution as to all transactions for the
Portfolio. The Adviser has undertaken to execute each investment transaction at
a price and commission which provides the most favorable total cost or proceeds
reasonably obtainable under the circumstances.


B-12
<PAGE>

     In placing portfolio transactions, the Adviser will use its best judgment
to choose the broker most capable of providing the brokerage services necessary
to obtain best available price and most favorable execution. The full range and
quality of brokerage services available will be considered in making these
determinations. In those instances where it is reasonably determined that more
than one broker can offer the brokerage services needed to obtain the best
available price and most favorable execution, consideration may be given to
those brokers which supply investment research and statistical information and
provide other services in addition to execution services to the Portfolio
and/or the Adviser. The Adviser considers such information useful in the
performance of its obligations under the agreement, but is unable to determine
the amount by which such services may reduce its expenses.

     The investment advisory agreement also incorporates the concepts of
Section 28(e) of the Securities Exchange Act of 1934 by providing that, subject
to the approval of the Portfolio's Board of Directors, the Adviser may cause
the Fund to pay a broker-dealer which furnishes brokerage and research services
at a higher commission than that which might be charged by another
broker-dealer for effecting the same transaction; provided that such commission
is deemed reasonable in terms of either that particular transaction or the
overall responsibilities of the Adviser to the Fund.

     Currently, it is the Portfolio's policy that the Adviser may at times pay
higher commissions in recognition of brokerage services felt necessary for the
achievement of better execution of certain securities transactions that
otherwise might not be available. The Adviser will only pay such higher
commissions if it believes this to be in the best interest of the Portfolio.
Some brokers or dealers who may receive such higher commissions in recognition

of brokerage services related to execution of securities transactions are also
providers of research information to the Adviser and/or the Portfolio. However,
the Adviser has informed the Portfolio that it will not pay higher commission
rates specifically for the purpose of obtaining research services.

     Since the Portfolio does not market its shares through intermediary
brokers or dealers, it is not the Portfolio's practice to allocate brokerage or
principal business on the basis of sales of its shares which may be through
such firms. However, the Portfolio may place portfolio orders with qualified
broker-dealers who recommend the Portfolio to other clients, or who act as
agent in the purchase of the Portfolio's shares for their 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 the Portfolio
shares by a broker or dealer in selecting among qualified broker-dealers.


     Some securities considered for investment by the Portfolio may also be
appropriate for other clients served by the Adviser. If purchase or sale of
securities consistent with the investment policies of the Fund and one or more
of these other clients services by the Adviser are considered at or about the
same time, transactions in such securities will be allocated among the Fund and
such other clients in a manner deemed equitable by the Adviser. During the
years ended December 31, 1995, 1996 and 1997 the Fund paid $527,912, $1,563,135
and $2,018,001 in brokerage commissions, respectively.



                             FINANCIAL STATEMENTS


     The Fund's Financial Statements as of and for the year ended December 31,
1997, appearing in the Vanguard Growth and Income Portfolio's 1997 Annual
Report to Shareholders, and the report thereon of Price Waterhouse LLP,
independent accountants, also appearing therein, are incorporated by reference
in this Statement of Additional Information.



                                                                            B-13
<PAGE>

                             PERFORMANCE MEASURES


     Vanguard may use reprinted material discussing The Vanguard Group, Inc. or
any of the member funds of The Vanguard Group of Investment Companies.


     Each of the investment company members of The Vanguard Group, including
Vanguard Quantitative Portfolios, may from time to time, use one or more of the
following unmanaged indexes for comparative performance purposes.


Standard and Poor's 500 Composite Stock Price Index -- is a well diversified
list of 500 companies representing the U.S. Stock Market.


Standard & Poor's MidCap 400 Index -- is composed of 400 medium sized domestic
stocks.


Standard & Poor's SmallCap 600/BARRA Value Index -- contains stocks of the S&P
SmallCap 600 Index which have a lower than average price-to-book ratio.


Standard & Poor's SmallCap 600/BARRA Growth Index -- contains stocks of the S&P
SmallCap 600 Index which have a higher than average price-to-book ratio.


Russell 1000 Value Index -- consists of the stocks in the Russell 1000 Index
(comprising the 1,000 largest U.S.-based companies measured by total market
capitalization) with the lowest price-to-book ratios, comprising 50% of the
market capitalization of the Russell 1000.


Wilshire 5000 Equity Index -- consists of more than 7,000 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.


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, Australasia, Asia, and the Far East.


Goldman Sachs 100 Convertible Bond Index -- currently includes 71 bonds and 29
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.



Lehman Long-Term Treasury Bond Index -- 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 Index -- consists of over 4,500 U.S.
Treasury, agency and investment grade corporate bonds.



B-14
<PAGE>

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 Bond Index -- 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 for 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 -- 65% Standard & Poor's 500 Index and 35% Lehman Long-Term
Corporate AA or Better Bond Index.

Composite Index -- 65% Lehman Long-Term Corporate AA or Better Bond Index and a
35% weighting in a blended equity composite (75% Standard & Poor's/BARRA Value
Index, 12.5% Standard & Poor's Utilities Index and 12.5% Standard and Poor's
Telephone Index).

Lehman Long-Term Corporate AA or Better Bond Index -- consists of all publicly
issued, fixed rate, nonconvertible investment grade, dollar- denominated,
SEC-registered corporate debt rated AA or AAA.

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 $1.6 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 $700 billion.

Lehman Brothers 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.



                                                                            B-15
<PAGE>

                              GENERAL INFORMATION

     Description of Shares and Voting Rights. The Fund is a diversified
open-end investment company established under Maryland law. Under Amended and
Restated Articles of Incorporation dated September 2, 1986, the Directors of
the Fund are permitted to issue 1,000,000,000 shares of common stock, with a
$.001 par value. The Board of Directors has the power to designate one or more
classes ("portfolios") of shares of common stock and to classify or reclassify
any unissued shares with respect to such Portfolios. Currently the Fund is
offering shares of one Portfolio.

     The Fund's shares are fully paid and non-assessable, and have no
preference as to conversion, exchange, dividends, retirement or other features.
The shares have no pre-emptive 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 Directors can elect 100% of the Directors 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.


B-16


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