MORGAN STANLEY DEAN WITTER EQUITY FUND
497, 1998-06-08
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<PAGE>   1
 
   
                   PROSPECTUS
                   JUNE 2, 1998
    
 
                   Morgan Stanley Dean Witter Equity Fund (the "Fund") is an
open-end, diversified management investment company whose investment objective
is total return. The Fund seeks to achieve this objective by investing primarily
in a diversified portfolio of equity securities.
 
                   INITIAL OFFERING--Shares of the Fund are being offered in an
underwriting by Dean Witter Distributors Inc. at $10.00 per share for Class B,
Class C and Class D shares with all proceeds going to the Fund and at $10.00 per
share plus a sales charge for Class A shares with the sales charge paid to the
Underwriter and the net asset value of $10.00 per share going to the Fund. The
initial offering will run from approximately June 24, 1998 through July 24,
1998.
 
                   CONTINUOUS OFFERING--A continuous offering of the shares of
the Fund will commence approximately two weeks after the closing date of the
initial offering which is anticipated for July 29, 1998. Class B, Class C and
Class D shares will be priced at the net asset value per share and Class A
shares will be priced at the net asset value per share plus a sales charge, in
each case as next determined following receipt of an order.
 
                   The Fund offers four classes of shares (each, a "Class"),
each with a different combination of sales charges, ongoing fees and other
features. The different distribution arrangements permit an investor to choose
the method of purchasing shares that the investor believes is most beneficial
given the amount of the purchase, the length of time the investor expects to
hold the shares and other relevant circumstances. (See "Purchase of Fund
Shares--Alternative Purchase Arrangements.")
 
   
                   This Prospectus sets forth concisely the information you
should know before investing in the Fund. It should be read and retained for
future reference. Additional information about the Fund is contained in the
Statement of Additional Information, dated June 2, 1998, which has been filed
with the Securities and Exchange Commission, and which is available at no charge
upon request of the Fund at the address or telephone numbers listed on this
page. The Statement of Additional Information is incorporated herein by
reference.
    
      DEAN WITTER DISTRIBUTORS INC.
      DISTRIBUTOR
      TABLE OF CONTENTS
 
Prospectus Summary/2
Summary of Fund Expenses/5
The Fund and its Management/7
Investment Objective and Policies/8
Risk Considerations and Investment Practices/9
Investment Restrictions/20
Underwriting/21
Purchase of Fund Shares/22
Shareholder Services/32
Redemptions and Repurchases/35
Dividends, Distributions and Taxes/36
   
Performance Information/38
    
Additional Information/38
 
Shares of the Fund are not deposits or obligations of, or guaranteed or endorsed
by, any bank, and the shares are not federally insured by the Federal Deposit
Insurance Corporation, the Federal Reserve Board, or any other agency.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION
OR ANY STATE SECURITIES COMMISSION
NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
    Morgan Stanley Dean Witter Equity Fund
    Two World Trade Center
    New York, New York 10048
    (212) 392-2550 or
    (800) 869-NEWS (toll-free)
<PAGE>   2
 
PROSPECTUS SUMMARY
 
   
<TABLE>
<S>                     <C>
The                     The Fund is organized as a Trust commonly known as a
Fund                    Massachusetts business trust, and is an open-end,
                        diversified management investment company investing
                        primarily in a diversified portfolio of equity securities.
Shares Offered          Shares of beneficial interest with $0.01 par value (see page
                        38). The Fund offers four Classes of shares, each with a
                        different combination of sales charges, ongoing fees and
                        other features (see pages 22-30).
Initial                 Shares of the Fund are being offered in an underwriting by
Offering                Dean Witter Distributors Inc. at $10.00 per share for each
                        of Class B, Class C and Class D and $10.00 per share plus a
                        sales charge for Class A. The minimum purchase for each
                        Class is 100 shares; however, Class D shares are only
                        available to persons who are otherwise qualified to purchase
                        such shares. The initial offering will run approximately
                        from June 24, 1998 through July 24, 1998. The closing will
                        take place on July 29, 1998 or such other date as may be
                        agreed upon by Dean Witter Distributors Inc. and the Fund
                        (the "Closing Date"). Shares will not be issued and
                        dividends will not be declared by the Fund until after the
                        Closing Date. If any orders received during the initial
                        offering period are accompanied by payment, such payment
                        will be returned unless an accompanying request for
                        investment in a Morgan Stanley Dean Witter money market fund
                        is received at the time the payment is made. Any purchase
                        order may be cancelled at any time prior to the Closing
                        Date.
Continuous              A continuous offering of shares of the Fund will commence
Offering/               within approximately two weeks after the Closing Date. The
Minimum                 minimum initial investment for each Class is $1,000 ($100 if
Purchase                the account is opened through EasyInvest (SM)). Class D
                        shares are only available to persons investing $5 million
                        ($25 million for certain qualified plans) or more and to
                        certain other limited categories of investors. For the
                        purpose of meeting the minimum $5 million (or $25 million)
                        investment for Class D shares, and subject to the $1,000
                        minimum initial investment for each Class of the Fund, an
                        investor's existing holdings of Class A shares and shares of
                        funds for which Dean Witter InterCapital Inc. serves as
                        investment manager ("Morgan Stanley Dean Witter Funds") that
                        are sold with a front-end sales charge, and concurrent
                        investments in Class D shares of the Fund and other Morgan
                        Stanley Dean Witter Funds that are multiple class funds,
                        will be aggregated. The minimum subsequent investment is
                        $100 (see page 21).
Investment              The investment objective of the Fund is total return (see
Objective               page 8).
Investment              Dean Witter InterCapital Inc., the Investment Manager of the
Manager and             Fund, and its wholly-owned subsidiary, Dean Witter Services
Sub-Adviser             Company Inc., serve in various investment management,
                        advisory, management and administrative capacities to 101
                        investment companies and other portfolios with net assets
                        under management of approximately $113.8 billion at April
                        30, 1998. It is anticipated that on or about June 22, 1998,
                        Dean Witter InterCapital Inc. will change its name to Morgan
                        Stanley Dean Witter Advisors Inc. Miller Anderson &
                        Sherrerd, LLP has been retained by the Investment Manager as
                        Sub-Adviser to provide investment advice and manage the
                        Fund's portfolio. Miller Anderson & Sherrerd, LLP currently
                        provides investment services to investment companies,
                        employee benefit plans, endowment funds, foundations and
                        other institutional investors and as of March 31, 1998 had
                        in excess of $67 billion in assets under management (see
                        page 7).
Management              The Investment Manager receives a monthly fee from the Fund
Fee                     at the annual rate of 0.85% of daily net assets. The
                        Sub-Adviser receives a monthly fee from the Investment
                        Manager equal to 40% of the Investment Manager's monthly fee
                        (see page 7).
</TABLE>
    
 
                                        2
<PAGE>   3
 
   
<TABLE>
<S>                    <C>
Distributor            Dean Witter Distributors Inc. (the "Distributor") is the Fund's Underwriter and Distributor. The Fund
and                    has adopted a distribution plan pursuant to Rule 12b-1 under the Investment Company Act (the "12b-1
Distribution           Plan") with respect to the distribution fees paid by the Class A, Class B and Class C shares of the
Fee                    Fund to the Distributor. The entire 12b-1 fee payable by Class A and a portion of the 12b-1 fee
                       payable by each of Class B and Class C equal to 0.25% of the average daily net assets of the Class
                       are currently each characterized as a service fee within the meaning of the National Association of
                       Securities Dealers, Inc. guidelines. The remaining portion of the 12b-1 fee, if any, is characterized
                       as an asset-based sales charge (see pages 22 and 30).
Alternative            Four classes of shares are offered:
Purchase               - Class A shares are offered with a front-end sales charge, starting at 5.25% and reduced for larger
Arrangements           purchases. Investments of $1 million or more (and investments by certain other limited categories of
                       investors) are not subject to any sales charge at the time of purchase but a contingent deferred
                       sales charge ("CDSC") of 1.0% may be imposed on redemptions within one year of purchase. The Fund is
                       authorized to reimburse the Distributor for specific expenses incurred in promoting the distribution
                       of the Fund's Class A shares and servicing shareholder accounts pursuant to the Fund's 12b-1 Plan.
                       Reimbursement may in no event exceed an amount equal to payments at an annual rate of 0.25% of
                       average daily net assets of the Class (see pages 22, 25 and 30).
 
                       - Class B shares are offered without a front-end sales charge, but will in most cases be subject to a
                       CDSC (scaled down from 5.0% to 1.0%) if redeemed within six years after purchase. The CDSC will be
                       imposed on any redemption of shares if after such redemption the aggregate current value of a Class B
                       account with the Fund falls below the aggregate amount of the investor's purchase payments made
                       during the six years preceding the redemption. A different CDSC schedule applies to investments by
                       certain qualified plans. Class B shares are also subject to a 12b-1 fee assessed at the annual rate
                       of 1.0% of the average daily net assets of Class B. Class B shares convert to Class A shares
                       approximately ten years after the date of the original purchase (see pages 22, 27 and 30).
 
                       - Class C shares are offered without a front-end sales charge, but will in most cases be subject to a
                       CDSC of 1.0% if redeemed within one year after purchase. The Fund is authorized to reimburse the
                       Distributor for specific expenses incurred in promoting the distribution of the Fund's Class C shares
                       and servicing shareholder accounts pursuant to the Fund's 12b-1 Plan. Reimbursement may in no event
                       exceed an amount equal to payments at an annual rate of 1.0% of average daily net assets of the Class
                       (see pages 22 and 30).
 
                       - Class D shares are offered only to investors meeting an initial investment minimum of $5 million
                       ($25 million for certain qualified plans) and to certain other limited categories of investors. Class
                       D shares are offered without a front-end sales charge or CDSC and are not subject to any 12b-1 fee
                       (see pages 22 and 30).
Dividends and          Dividends from net investment income and distributions from net capital gains, if any, are paid at
Capital Gains          least once each year. The Fund may, however, determine to retain all or part of any net long-term
Distributions          capital gains in any year for reinvestment. Dividends and capital gains distributions paid on shares
                       of a Class are automatically reinvested in additional shares of the same Class at net asset value
                       unless the shareholder elects to receive cash. Shares acquired by dividend and distribution
                       reinvestment will not be subject to any sales charge or CDSC (see pages 32 and 36).
Redemption             Shares are redeemable by the shareholder at net asset value less any applicable CDSC on Class A,
                       Class B or Class C shares. An account may be involuntarily redeemed if the total value of the account
                       is less than $100 or, if the account was opened through EasyInvest (SM), if after twelve months the
                       shareholder has invested less than $1,000 in the account (see page 35).
</TABLE>
    
 
                                        3
<PAGE>   4
<TABLE>
<S>                     <C>
Risk                    The net asset value of the Fund's shares will fluctuate with
Considerations          changes in the market value of its portfolio securities. The
                        market value of the Fund's portfolio securities and,
                        therefore, the Fund's net asset value per share, will
                        increase or decrease due to a variety of economic, market or
                        political factors which cannot be predicted. Foreign
                        securities and markets in which the Fund may invest pose
                        different and greater risks than those customarily
                        associated with domestic securities and markets, including
                        fluctuations in foreign currency exchange rates, foreign
                        securities exchange controls and foreign tax rates as well
                        as risks associated with transactions in forward currency
                        contracts. The Fund may invest in lower-rated convertible
                        fixed-income securities, may enter into repurchase
                        agreements, may purchase securities on a when-issued,
                        delayed delivery or forward commitment basis, may purchase
                        securities on a "when, as and if issued" basis, may lend its
                        portfolio securities and may utilize certain investment
                        techniques including options and futures transactions and
                        stock index futures which may be considered speculative in
                        nature and may involve greater risks than those customarily
                        assumed by other investment companies which do not invest in
                        such instruments. (See pages 9-19 under "Risk Considerations
                        and Investment Practices" in the Prospectus).
</TABLE>
 
  The above is qualified in its entirety by the detailed information appearing
                                   elsewhere
       in this Prospectus and in the Statement of Additional Information.
 
                                        4
<PAGE>   5
 
SUMMARY OF FUND EXPENSES
 
   
     The following table illustrates all estimated expenses and fees that a
shareholder of the Fund will incur. The expenses and fees set forth in the table
are based on the expenses and fees anticipated for the fiscal year ending May
31, 1999.
    
 
<TABLE>
<CAPTION>
                                                            Class A       Class B       Class C       Class D
                                                            -------       -------       -------       -------
<S>                                                         <C>           <C>           <C>           <C>
Shareholder Transaction Expenses
- -----------------------------------------------------
Maximum Sales Charge Imposed on Purchases
  (as a percentage of offering price)................        5.25%(1)      None          None          None
Sales Charge Imposed on Dividend Reinvestments.......        None          None          None          None
Maximum Contingent Deferred Sales Charge
  (as a percentage of original purchase price
  or redemption proceeds)............................        None(2)       5.00%(3)      1.00%(4)      None
Redemption Fees......................................        None          None          None          None
Exchange Fee.........................................        None          None          None          None
 
Annual Fund Operating Expenses
(as a percentage of average net assets)
- -----------------------------------------------------
Management Fees *....................................        0.85%         0.85%         0.85%         0.85%
12b-1 Fees (5) (6)...................................        0.25%         1.00%         1.00%         None
Other Expenses *.....................................        0.29%         0.29%         0.29%         0.29%
Total Fund Operating Expenses* (7)...................        1.39%         2.14%         2.14%         1.14%
</TABLE>
 
- ---------------
   
  * The Investment Manager has agreed to assume all operating expenses (except
    for brokerage and 12b-1 fees) and waive the compensation provided in its
    Investment Management Agreement until such time as the Fund has $50 million
    of net assets or until six months from the date of commencement of the
    Fund's operations, whichever occurs first. The fees and expenses disclosed
    above do not reflect the assumption of any expenses or the waiver of any
    compensation by the Investment Manager.
    
 
(1) Reduced for purchases of $25,000 and over (see "Purchase of Fund
    Shares--Initial Sales Charge Alternative--Class A Shares").
 
(2) Investments that are not subject to any sales charge at the time of purchase
    are subject to a CDSC of 1.00% that will be imposed on redemptions made
    within one year after purchase, except for certain specific circumstances
    (see "Purchase of Fund Shares--Initial Sales Charge Alternative--Class A
    Shares").
 
(3) The CDSC is scaled down to 1.00% during the sixth year, reaching zero
    thereafter.
 
(4) Only applicable to redemptions made within one year after purchase (see
    "Purchase of Fund Shares--Level Load Alternative--Class C Shares").
 
(5) The 12b-1 fee is accrued daily and payable monthly. The entire 12b-1 fee
    payable by Class A and a portion of the 12b-1 fee payable by each of Class B
    and Class C equal to 0.25% of the average daily net assets of the Class are
    currently each characterized as a service fee within the meaning of National
    Association of Securities Dealers, Inc. ("NASD") guidelines and are payments
    made for personal service and/or maintenance of shareholder accounts. The
    remainder of the 12b-1 fee, if any, is an asset-based sales charge, and is a
    distribution fee paid to the Distributor to compensate it for the services
    provided and the expenses borne by the Distributor and others in the
    distribution of the Fund's shares (see "Purchase of Fund Shares--Plan of
    Distribution").
 
(6) Upon conversion of Class B shares to Class A shares, such shares will be
    subject to the lower 12b-1 fee applicable to Class A shares. No sales charge
    is imposed at the time of conversion of Class B shares to Class A shares.
    Class C shares do not have a conversion feature and, therefore, are subject
    to an ongoing 1.00% distribution fee (see "Purchase of Fund
    Shares--Alternative Purchase Arrangements").
 
(7) "Total Fund Operating Expenses," as shown above, are based upon the sum of
    12b-1 Fees, Management Fees and estimated "Other Expenses."
 
                                        5
<PAGE>   6
 
   
<TABLE>
<CAPTION>
                          Examples                            1 Year   3 Years
                          --------                            ------   -------
<S>                                                           <C>      <C>
You would pay the following expenses on a $1,000 investment
assuming (1) a 5% annual return and (2) redemption at the
end of
each time period:
     Class A................................................   $66       $94
     Class B................................................   $72       $97
     Class C................................................   $32       $67
     Class D................................................   $12       $36
 
You would pay the following expenses on the same $1,000
investment
assuming no redemption at the end of the period:
     Class A................................................   $66       $94
     Class B................................................   $22       $67
     Class C................................................   $22       $67
     Class D................................................   $12       $36
</TABLE>
    
 
     THE ABOVE EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES OF EACH CLASS MAY BE GREATER OR
LESS THAN THOSE SHOWN.
 
     The purpose of this table is to assist the investor in understanding the
various costs and expenses that an investor in the Fund will bear directly or
indirectly. For a more complete description of these costs and expenses, see
"Purchase of Fund Shares--Plan of Distribution" and "Redemptions and
Repurchases."
 
     Long-term shareholders of Class B and Class C may pay more in sales
charges, including distribution fees, than the economic equivalent of the
maximum front-end sales charges permitted by the NASD.
 
                                        6
<PAGE>   7
 
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
     Morgan Stanley Dean Witter Equity Fund (the "Fund") is an open-end,
diversified management investment company. The Fund is a trust of the type
commonly known as a "Massachusetts business trust" and was organized under the
laws of The Commonwealth of Massachusetts on April 6, 1998.
 
     Dean Witter InterCapital Inc. ("InterCapital" or the "Investment Manager"),
whose address is Two World Trade Center, New York, New York 10048, is the Fund's
Investment Manager. The Investment Manager, which was incorporated in July,
1992, is a wholly-owned subsidiary of Morgan Stanley Dean Witter & Co., a
preeminent global financial services firm that maintains leading market
positions in each of its three primary businesses--securities, asset management
and credit services. It is anticipated that on or about June 22, 1998, the
Investment Manager's name will be changed to Morgan Stanley Dean Witter Advisors
Inc.
 
   
     InterCapital and its wholly-owned subsidiary, Dean Witter Services Company
Inc., serve in various investment management, advisory, management and
administrative capacities to 101 investment companies (the "Morgan Stanley Dean
Witter Funds"), 28 of which are listed on the New York Stock Exchange, with
combined assets of approximately $109.5 billion at April 30, 1998. The
Investment Manager also manages and advises portfolios of pension plans, other
institutions and individuals which aggregated approximately $4.3 billion at such
date.
    
 
     The Fund has retained the Investment Manager to provide administrative
services, manage its business affairs and supervise the investment of the Fund's
assets. InterCapital has retained Dean Witter Services Company Inc. to perform
the aforementioned administrative services for the Fund.
 
     Under a Sub-Advisory Agreement between Miller Anderson & Sherrerd, LLP (the
"Sub-Adviser") and the Investment Manager, the Sub-Adviser provides the Fund
with investment advice and portfolio management subject to the overall
supervision of the Investment Manager. The Fund's Trustees review the various
services provided by the Investment Manager and the Sub-Adviser to ensure that
the Fund's general investment policies and programs are being properly carried
out and that administrative services are being provided to the Fund in a
satisfactory manner.
 
     The Sub-Adviser, whose address is One Tower Bridge, West Conshohocken,
Pennsylvania, as of March 31, 1998, manages assets of approximately $67 billion
for investment companies, employee benefit plans, endowments, foundations and
other institutional investors. The Sub-Adviser is an indirect subsidiary of
Morgan Stanley Dean Witter & Co.
 
   
     As full compensation for the services and facilities furnished to the Fund
and for expenses of the Fund assumed by the Investment Manager, the Fund pays
the Investment Manager monthly compensation calculated daily by applying the
annual rate of 0.85% to the Fund's daily net assets. As compensation for its
services provided pursuant to the Sub-Advisory Agreement, the Investment Manager
pays the Sub-Adviser monthly compensation equal to 40% of its monthly
compensation. The Fund's expenses include: the fee of the Investment Manager,
the fee pursuant to the Plan of Distribution (see "Purchase of Fund Shares");
taxes; transfer agent and custodian fees; auditing fees; and certain legal fees,
and printing and other expenses relating to the Fund's operations which are not
expressly assumed by the Investment Manager under its Investment Management
Agreement with the Fund. The Investment Manager has agreed to assume all
operating expenses (except for brokerage and 12b-1 fees) and waive the
compensation provided for in its Investment Management Agreement until such time
as the Fund has $50 million of net assets or until six months from commencement
of the Fund's operations, whichever occurs first.
    
 
                                        7
<PAGE>   8
 
INVESTMENT OBJECTIVE AND POLICIES
- --------------------------------------------------------------------------------
 
     The investment objective of the Fund is total return. There is no assurance
that the objective will be achieved. This objective is fundamental and may not
be changed without shareholder approval. The following policies may be changed
by the Board of Trustees without shareholder approval.
 
     The Fund seeks to achieve its investment objective by investing at least
65% of its total assets in equity securities. The Sub-Adviser invests the Fund's
assets by pursuing an investing strategy that is a disciplined combination of
value and growth styles, backed by fundamental quantitative and qualitative
analyses, and executed within a multiple-manager, team system. Individual
securities are selected based on a sequence of objective, quantitative screens,
focused fundamental research by in-house industry analysts, and concluded with
buy/sell decisions by individual portfolio managers.
 
     The portfolio managers, currently six in total, are divided into two teams:
a value team and a growth team. Each manager works independently within the
style of his or her specific team. Each team has a team leader who performs
certain oversight functions with respect to overall portfolio structure.
Research is aligned to complement and support the growth and value components of
the portfolio.
 
     The Sub-Adviser's investment process is designed to identify growing
companies whose stock in the Sub-Adviser's opinion is attractively valued and
has low but rising expectations, and to diversify holdings across all market
economic sectors to preserve return while reducing risk. Strategic decisions are
a function of the stock selections made by the portfolio managers. However, team
leaders administer the value/growth style-tilt of the portfolio. They also
monitor the stock position limits and the sector-representation weightings.
 
     The equity securities in which the Fund may invest include common stocks,
preferred stocks, rights and warrants and equity securities of foreign issuers.
The Fund may invest up to 25% of its total assets in foreign equity or
fixed-income securities denominated in a foreign currency and traded primarily
in non-U.S. markets.
 
     Up to 35% of the Fund's total assets may be invested in (i) convertible
securities (which may or may not be rated below investment grade), (ii)
investment grade fixed-income securities of domestic companies, (iii) investment
grade fixed-income securities of foreign companies and governments and
international organizations, (iv) U.S. Government securities and (v) money
market instruments. (For a discussion of the risks of investing in each of these
securities, see "Risk Considerations and Investment Practices" below.) In
addition, this portion of the Fund's portfolio will consist of various other
financial instruments such as forward foreign exchange contracts, futures
contracts and options as set forth below.
 
     Fixed-income securities in which the Fund may invest include domestic and
foreign corporate notes and bonds, obligations issued or guaranteed by the
United States Government, its agencies and instrumentalities and obligations of
foreign governments and international organizations. The non-governmental debt
securities in which the Fund will invest will include: (a) domestic and foreign
corporate debt securities, including bonds, notes and commercial paper, rated in
the four highest categories by a nationally recognized statistical rating
organization ("NRSRO") including Moody's Investors Service, Inc. ("Moody's"),
Standard & Poor's Corporation ("S&P"), Duff and Phelps, Inc. and Fitch Investors
Service, Inc., or, if unrated, of comparable quality as determined by the
Investment Manager and Sub-Adviser; and (b) bank obligations, including CDs,
banker's acceptances and time deposits, issued by banks with a long-term CD
rating in one of the four highest categories by a NRSRO. Investments in
securities rated within the four highest rating categories by a NRSRO are
considered "investment grade." However, such securities rated within the fourth
highest rating category by a NRSRO have speculative characteristics and,
 
                                        8
<PAGE>   9
 
therefore, changes in economic conditions or other
circumstances are more likely to weaken the capacity of their issuers to make
principal and interest payments than would be the case with investments in
securities with higher credit ratings. Where a fixed-income security is not
rated by a NRSRO, the Investment Manager and Sub-Adviser will make a
determination of its creditworthiness and may deem it to be investment grade. If
a fixed-income non-convertible security held by the Fund is subsequently
downgraded by a rating agency below investment grade, the Fund will sell such
securities as soon as practicable without undue market or tax consequences to
the Fund. See the Appendix to the Statement of Additional Information for a
discussion of ratings of fixed-income securities.
 
     The U.S. Government securities in which the Fund may invest include
securities which are direct obligations of the United States Government, such as
United States treasury bills, notes and bonds (including zero coupon bonds), and
which are backed by the full faith and credit of the United States; securities
which are backed by the full faith and credit of the United States but which are
obligations of a United States Government agency or instrumentality (e.g.,
obligations of the Government National Mortgage Association); securities issued
by a United States agency or instrumentality which has the right to borrow, to
meet its obligations, from an existing line of credit with the United States
Treasury (e.g., obligations of the Federal National Mortgage Association); and
securities issued by a United States Government agency or instrumentality which
is backed by the credit of the issuing agency or instrumentality (e.g.,
obligations of the Federal Farm Credit System).
 
     There may be periods during which market conditions warrant reduction of
some or all of the Fund's securities holdings. During such periods, the Fund may
adopt a temporary "defensive" posture in which greater than 35% of its net
assets are invested in cash or money market instruments. Under such
circumstances, the money market instruments in which the Fund may invest are
securities issued or guaranteed by the U.S. Government, its agencies or
instrumentalities (Treasury bills, notes and bonds, including zero coupon
securities); bank obligations; Eurodollar certificates of deposit; obligations
of savings institutions; fully insured certificates of deposit; and commercial
paper rated within the two highest grades by Moody's or S&P or, if not rated,
issued by a company having an outstanding debt issue rated at least AA by S&P or
Aa by Moody's. Such securities may be used to invest uncommitted cash balances.
During such "defensive" periods, up to 100% of the Fund's total assets may be
invested in money market instruments or cash.
 
     The Fund may also purchase or sell futures contracts and listed and
over-the-counter options contracts on securities and indices, may enter into
repurchase agreements, purchase private placements, zero coupon securities and
securities of other investment companies, purchase securities on a when-issued,
delayed delivery or forward commitment basis, purchase securities on a "when, as
and if issued" basis, and lend its portfolio securities, as discussed under
"Risk Considerations and Investment Practices" below.
 
RISK CONSIDERATIONS AND INVESTMENT PRACTICES
 
   
     The net asset value of the Fund's shares will fluctuate with changes in the
market value of the Fund's portfolio securities. The market value of the Fund's
portfolio securities will increase or decrease due to a variety of economic,
market or political factors which cannot be predicted. While the Sub-Adviser's
strategy is designed to preserve return while reducing risk, there can be no
assurance that the strategy will be successful.
    
 
     Foreign Securities.  Foreign securities investments may be affected by
changes in currency rates or exchange control regulations, changes in
governmental administration or economic or monetary policy (in the United States
and abroad) or changed circumstances in dealings between nations. Fluctuations
in the relative rates of exchange between the currencies of different nations
will affect the value of the Fund's investments. Changes in foreign currency
exchange rates
                                        9
<PAGE>   10
 
relative to the U.S. dollar will affect the U.S. dollar value of the Fund's
assets denominated in that currency and thereby impact upon the Fund's total
return on such assets. When purchasing foreign securities, the Fund will
generally enter into foreign currency exchange transactions or forward foreign
exchange contracts to facilitate settlement. The Fund will utilize forward
foreign exchange contracts in these instances as an attempt to limit the effect
of changes in the relationship between the U.S. dollar and the foreign currency
during the period between the trade date and settlement date for the
transaction.
 
     Foreign currency exchange rates are determined by forces of supply and
demand on the foreign exchange markets. These forces are themselves affected by
the international balance of payments and other economic and financial
conditions, government intervention, speculation and other factors. Moreover,
foreign currency exchange rates may be affected by the regulatory control of the
exchanges on which the currencies trade. The foreign currency transactions of
the Fund will be conducted on a spot basis or through forward contracts or
futures contracts (see below). The Fund may incur certain costs in connection
with these currency transactions.
 
     Investments in foreign securities will also occasion risks relating to
political and economic developments abroad, including the possibility of
expropriations or confiscatory taxation, limitations on the use or transfer of
Fund assets and any effects of foreign social, economic or political
instability. Foreign companies are not subject to the regulatory requirements of
U.S. companies and, as such, there may be less publicly available information
about such companies. Moreover, foreign companies are not subject to uniform
accounting, auditing and financial reporting standards and requirements
comparable to those applicable to U.S. companies.
 
     Securities of foreign issuers may be less liquid than comparable securities
of U.S. issuers and, as such, their price changes may be more volatile.
Furthermore, foreign exchanges and broker-dealers are generally subject to less
government and exchange scrutiny and regulation than their American
counterparts. Brokerage commissions, dealer concessions and other transaction
costs may be higher on foreign markets than in the U.S. In addition, differences
in clearance and settlement procedures on foreign markets may occasion delays in
settlements of Fund trades effected in such markets. Inability to dispose of
portfolio securities due to settlement delays could result in losses to the Fund
due to subsequent declines in value of such securities and the inability of the
Fund to make intended security purchases due to settlement problems could result
in a failure of the Fund to make potentially advantageous investments.
 
     Depository Receipts.  The Fund may invest in securities of foreign issuers
in the form of ADRs, including ADRs sponsored by persons other than the
underlying issuers ("unsponsored ADRs"), European Depository Receipts ("EDRs"),
Global Depository Receipts ("GDRs") or other similar securities convertible into
securities of foreign issuers. These securities may not necessarily be
denominated in the same currency as the securities into which they may be
converted. ADRs are receipts typically issued by a United States bank or trust
company evidencing ownership of the underlying securities. Generally, issuers of
the stock of unsponsored ADRs are not obligated to distribute material
information in the United States and, therefore, there may not be a correlation
between such information and the market value of such ADRs. EDRs are issued by a
European bank and GDRs are issued by a foreign bank or trust company and both
evidence ownership of the underlying foreign security. Generally, ADRs, in
registered form, are designated for use in the United States securities markets,
EDRs, in bearer form, are designated for use in European securities markets and
GDRs, in bearer form, are designated for use in European and other foreign
securities markets.
 
     Convertible Securities.  The Fund may invest in convertible securities. A
convertible security is a bond, debenture, note, preferred stock or other
 
                                       10
<PAGE>   11
 
security that may be converted into or exchanged
for a prescribed amount of common stock of the same or a different issuer within
a particular period of time at a specified price or formula. Convertible
securities rank senior to common stocks in a corporation's capital structure
and, therefore, entail less risk than the corporation's common stock. The value
of a convertible security is a function of its "investment value" (its value as
if it did not have a conversion privilege), and its "conversion value" (the
security's worth if it were to be exchanged for the underlying security, at
market value, pursuant to its conversion privilege).
 
     Lower Rated or Unrated Convertible Securities. To the extent that a
convertible security's investment value is greater than its conversion value,
its price will be primarily a reflection of such investment value and its price
will be likely to increase when interest rates fall and decrease when interest
rates rise, as with a fixed-income security (the credit standing of the issuer
and other factors may also have an effect on the convertible security's value).
If the conversion value exceeds the investment value, the price of the
convertible security will rise above its investment value and, in addition, may
sell at some premium over its conversion value. (This premium represents the
price investors are willing to pay for the privilege of purchasing a
fixed-income security with a possibility of capital appreciation due to the
conversion privilege.) At such times the price of the convertible security will
tend to fluctuate directly with the price of the underlying equity security.
 
   
     The convertible securities in which the Fund may invest may be rated below
investment grade. Securities below investment grade are the equivalent of high
yield, high risk bonds, commonly known as "junk bonds." Investment grade is
generally considered to be debt securities rated BBB or higher by S&P or Baa or
higher by Moody's. Fixed-income securities rated Baa by Moody's or BBB by S&P
have speculative characteristics greater than those of more highly rated
securities, while fixed-income securities rated Ba or BB or lower by Moody's and
S&P, respectively, are considered to be speculative investments. The Fund will
not invest in convertible securities that are rated lower than B by S&P or
Moody's or, if not rated, determined to be of comparable quality by the
Investment Manager and/or Sub-Adviser. The Fund will not invest in debt
securities that are in default in payment of principal or interest. The ratings
of fixed-income securities by Moody's and S&P are a generally accepted barometer
of credit risk. However, as the creditworthiness of issuers of lower-rated
fixed-income securities is more problematic than that of issuers of higher-
rated fixed-income securities, the achievement of the Fund's investment
objective will be more dependent upon the Sub-Adviser's own credit analysis than
would be the case with a mutual fund investing primarily in higher quality
bonds. The Sub-Adviser will utilize a security's credit rating as simply one
indication of an issuer's creditworthiness and will principally rely upon its
own analysis of any security currently held by the Fund or potentially
purchasable by the Fund for its portfolio. See the Appendix to the Statement of
Additional Information for a discussion of ratings of fixed-income securities.
    
 
   
     Because of the special nature of the Fund's permitted investments in lower
rated or unrated convertible securities, the Investment Manager and/or
Sub-Adviser must take account of certain special considerations in assessing the
risks associated with such investments. The prices of lower rated or unrated
securities have been found to be less sensitive to changes in prevailing
interest rates than higher rated investments, but are likely to be more
sensitive to adverse economic changes or individual corporate developments.
During an economic downturn or substantial period of rising interest rates,
highly leveraged issuers may experience financial stress which would adversely
affect their ability to service their principal and interest payment
obligations, to meet their projected business goals or to obtain additional
financing. If the issuer of a fixed-income security owned by the Fund defaults,
the Fund may incur additional expenses to seek recovery. In addition, periods of
economic uncertainty and change can be expected to result in an
    
                                       11
<PAGE>   12
 
increased volatility of market prices of lower rated or unrated securities and a
corresponding volatility in the net asset value of a share of the Fund.
 
     Corporate Notes and Bonds.  Values and yield of corporate bonds will
fluctuate with changes in prevailing interest rates and other factors.
Generally, as prevailing interest rates rise, the value of corporate notes and
bonds held by the Fund will fall. Securities with longer maturities generally
tend to produce higher yields and are subject to greater market fluctuation as a
result of changes in interest rates than debt securities with shorter
maturities. The Fund is not limited as to the maturities of the debt securities
in which it may invest.
 
     All fixed-income securities are subject to two types of risks; the credit
risk and the interest rate risk. The credit risk relates to the ability of the
issuer to meet interest or principal payments or both as they come due. The
interest rate risk refers to the fluctuations in the net asset value of any
portfolio of fixed-income securities resulting from the inverse relationship
between price and yield of fixed-income securities; that is, when the general
level of interest rates rises, the prices of outstanding fixed-income securities
decline, and when interest rates fall, prices rise.
 
     Forward Foreign Currency Exchange Contracts.  A forward foreign currency
exchange contract ("forward contract") involves an obligation to purchase or
sell a currency at a future date, which may be any fixed number of days from the
date of the contract agreed upon by the parties, at a price set at the time of
the contract. The Fund may enter into forward contracts as a hedge against
fluctuations in future foreign exchange rates.
 
     The Fund will enter into forward contracts under various circumstances.
When the Fund enters into a contract for the purchase or sale of a security
denominated in a foreign currency, it may, for example, desire to "lock in" the
price of the security in U.S. dollars or some other foreign currency which the
Fund is temporarily holding in its portfolio. By entering into a forward
contract for the purchase or sale, for a fixed amount of dollars or other
currency, of the amount of foreign currency involved in the underlying security
transactions, the Fund will be able to protect itself against a possible loss
resulting from an adverse change in the relationship between the U.S. dollar or
other currency which is being used for the security purchase and the foreign
currency in which the security is denominated during the period between the date
on which the security is purchased or sold and the date on which payment is made
or received.
 
     At other times, when, for example, it is believed that the currency of a
particular foreign country may suffer a substantial decline against the U.S.
dollar or some other foreign currency, the Fund may enter into a forward
contract to sell, for a fixed amount of dollars or other currency, the amount of
foreign currency approximating the value of some or all of the Fund's portfolio
securities (or securities which the Fund has purchased for its portfolio)
denominated in such foreign currency. Under identical circumstances, the Fund
may enter into a forward contract to sell, for a fixed amount of U.S. dollars or
other currency, an amount of foreign currency other than the currency in which
the securities to be hedged are denominated approximating the value of some or
all of the portfolio securities to be hedged. This method of hedging, called
"cross-hedging," will be selected when it is determined that the foreign
currency in which the portfolio securities are denominated has insufficient
liquidity or is trading at a discount as compared with some other foreign
currency with which it tends to move in tandem.
 
     In addition, when the Fund anticipates purchasing securities at some time
in the future, and wishes to lock in the current exchange rate of the currency
in which those securities are denominated against the U.S. dollar or some other
foreign currency, it may enter into a forward contract to purchase an amount of
currency equal to some or all of the value of the anticipated purchase, for a
fixed amount of U.S. dollars or other currency. The Fund may, however, close out
the forward contract without purchasing the security which was the subject of
the "anticipatory" hedge.
 
                                       12
<PAGE>   13
 
     Lastly, the Fund is permitted to enter into forward contracts with respect
to currencies in which certain of its portfolio securities are denominated and
on which options have been written (see "Options and Futures Transactions").
 
     In all of the above circumstances, if the currency in which the Fund's
portfolio securities (or anticipated portfolio securities) are denominated rises
in value with respect to the currency which is being purchased (or sold), then
the Fund will have realized fewer gains than had the Fund not entered into the
forward contracts. Moreover, the precise matching of the forward contract
amounts and the value of the securities involved will not generally be possible,
since the future value of such securities in foreign currencies will change as a
consequence of market movements in the value of those securities between the
date the forward contract is entered into and the date it matures. The Fund is
not required to enter into such transactions with regard to its foreign
currency-denominated securities and will not do so unless deemed appropriate by
the Investment Manager and/or Sub-Adviser.
 
     The Fund generally will not enter into a forward contract with a term of
greater than one year, although it may enter into forward contracts for periods
of up to five years. To the extent that the Fund enters into forward foreign
currency contracts to hedge against a decline in the value of portfolio holdings
denominated in a particular foreign currency resulting from currency
fluctuations, there is a risk that the Fund may nevertheless realize a gain or
loss as a result of currency fluctuations after such portfolio holdings are sold
if the Fund is unable to enter into an "offsetting" forward foreign currency
contract with the same party or another party. The Fund may be limited in its
ability to enter into hedging transactions involving forward contracts by the
Internal Revenue Code of 1986 (the "Code") requirements relating to
qualifications as a regulated investment company (see "Dividends, Distributions
and Taxes").
 
     Options and Futures Transactions.  Call and put options on U.S. Treasury
notes, bonds and bills, on various foreign currencies and on equity securities
are listed on several U.S. and foreign securities exchanges and are written in
over-the-counter transactions ("OTC Options"). Listed options are issued or
guaranteed by the exchange on which they trade or by a clearing corporation such
as the Options Clearing Corporation ("OCC"). Ownership of a listed call option
gives the Fund the right to buy from the OCC (in the U.S.) or other clearing
corporation or exchange, the underlying security or currency covered by the
option at the stated exercise price (the price per unit of the underlying
security or currency) by filing an exercise notice prior to the expiration date
of the option. The writer (seller) of the option would then have the obligation
to sell, on the OCC (in the U.S.) or other clearing corporation or exchange, the
underlying security or currency at that exercise price prior to the expiration
date of the option, regardless of its then current market price. Ownership of a
listed put option would give the Fund the right to sell the underlying security
or currency to the OCC (in the U.S.) or other clearing corporation or exchange
at the stated exercise price. Upon notice of exercise of the put option, the
writer of the option would have the obligation to purchase the underlying
security or currency from the OCC (in the U.S.) or other clearing corporation or
exchange at the exercise price.
 
     OTC Options.  Exchange-listed options are issued by the OCC (in the U.S.)
or other clearing corporation or exchange which assures that all transactions in
such options are properly executed. OTC options are purchased from or sold
(written) to dealers or financial institutions which have entered into direct
agreements with the Fund. With OTC options, such variables as expiration date,
exercise price and premium will be agreed upon between the Fund and the
transacting dealer, without the intermediation of a third party such as the OCC.
If the transacting dealer fails to make or take delivery of the securities or
amount of foreign currency underlying an option it has written, in accordance
with the terms of that option, the Fund would lose the premium paid for the
option as well as any anticipated benefit of the transaction. The Fund will
engage in
 
                                       13
<PAGE>   14
 
OTC option transactions only with member banks of the Federal Reserve System or
primary dealers in U.S. Government securities or with affiliates of such banks
or dealers which have capital of at least $50 million or whose obligations are
guaranteed by an entity having capital of at least $50 million.
 
     Covered Call Writing.  The Fund is permitted to write covered call options
on portfolio securities which are denominated in either U.S. dollars or foreign
currencies and on the U.S. dollar and foreign currencies, without limit, in
order to hedge against the decline in the value of a security or currency and to
close out long call option positions. Generally, a call option is "covered" if
the Fund owns the security or the currency underlying the option it has written,
holds a call option on the same underlying security or currency with a similar
exercise price or maintains a sufficient amount of cash, cash equivalents or
liquid securities to purchase the underlying security or to exchange for the
underlying currency. As a writer of a call option, the Fund has the obligation,
upon notice of exercise of the option, to deliver the security or amount of
currency underlying the option (certain listed and OTC call options written by
the Fund will be exercisable by the purchaser only on a specific date).
 
     The Fund will receive from the purchaser, in return for a call it has
written, a "premium"; i.e., the price of the option. The premium received will
offset a portion of the potential loss incurred by the Fund if the securities
underlying the option are ultimately sold by the Fund at a loss. Furthermore, a
premium received on a call written on a foreign currency will ameliorate any
potential loss of value on the portfolio security due to a decline in the value
of the currency. However, during the option period, the covered call writer has,
in return for the premium on the option, given up the opportunity for capital
appreciation above the exercise price should the market price of the underlying
security (or the exchange rate of the currency in which it is denominated)
increase, but has retained the risk of loss should the price of the underlying
security (or the exchange rate of the currency in which it is denominated)
decline. The size of premiums will fluctuate with varying market conditions.
 
     Purchasing Call and Put Options.  The Fund may purchase listed and OTC call
and put options in amounts equalling up to 5% of its total assets. The Fund may
purchase call options to close out a covered call position or to protect against
an increase in the price of a security it anticipates purchasing or, in the case
of call options on a foreign currency, to hedge against an adverse exchange rate
change of the currency in which the security it anticipates purchasing is
denominated vis-a-vis the currency in which the exercise price is denominated.
The Fund may purchase put options on securities which it holds in its portfolio
only to protect itself against a decline in the value of the security. If the
value of the underlying security were to fall below the exercise price of the
put purchased in an amount greater than the premium paid for the option, the
Fund would incur no additional loss. Similarly, the Fund may purchase put
options on currencies in which securities which it holds are denominated only to
protect itself against a decline in value of such currency vis-a-vis the
currency in which the exercise price is denominated. If the value of the
currency underlying the option were to fall below the exercise price of the put
purchased in an amount greater than the premium paid for the option, the Fund
would incur no additional loss. There are no other limits on the Fund's ability
to purchase call and put options.
 
     Futures Contracts.  The Fund may purchase and sell futures contracts that
are currently traded, or may in the future be traded, on U.S. and foreign
commodity exchanges on common stocks, such underlying fixed-income securities as
U.S. Treasury bonds, notes, and bills and/or any foreign government fixed-income
security ("interest rate" futures), on various currencies ("currency" futures)
and on such indexes of U.S. or foreign equity and fixed-income securities as may
exist or come into being, such as the Standard & Poor's 500 Composite Stock
Price Index or the Financial Times Equity Index ("index" futures). As a futures
contract purchaser, the Fund incurs an obligation to take deliv-
 
                                       14
<PAGE>   15
 
ery of a specified amount of the obligation underlying the contract at a
specified time in the future for a specified price. As a seller of a futures
contract, the Fund incurs an obligation to deliver the specified amount of the
underlying obligation at a specified time in return for an agreed upon price.
 
     The Fund will purchase or sell interest rate futures contracts for the
purpose of hedging some or all of the value of its portfolio securities (or
anticipated portfolio securities) against changes in prevailing interest rates.
If it is anticipated that interest rates may rise and, concomitantly, the price
of certain of its portfolio securities fall, the Fund may sell an interest rate
futures contract. If declining interest rates are anticipated, the Fund may
purchase an interest rate futures contract to protect against a potential
increase in the price of securities the Fund intends to purchase. Subsequently,
appropriate securities may be purchased by the Fund in an orderly fashion; as
securities are purchased, corresponding futures positions would be terminated by
offsetting sales of contracts.
 
     Rather than actually purchasing a financial asset (e.g., a long- or
short-term treasury security) or all of the securities contained in a specific
index (e.g., the S&P 500), the Fund may choose to purchase a futures contract
which reflects the value of such securities or index. For example, an S&P 500
futures contract reflects the value of the underlying companies that comprise
the S&P 500 Composite Stock Price Index. If the aggregate market value of the
index securities increases or decreases during the contract period of an S&P 500
futures contract, the amount of cash to be paid to the contract holder at the
end of the period would correspondingly increase or decrease. As a result, the
Fund is able to expose to the market that is held by the Fund to meet
anticipated redemptions or for future investment opportunities. Because futures
contracts generally settle more quickly than their underlying securities, the
Fund believes that the use of futures and options thereon may allow the Fund to
be fully invested while maintaining the needed liquidity.
 
     The Fund may purchase or sell index futures contracts for the purpose of
hedging some or all of its portfolio (or anticipated portfolio) against changes
in their prices. If it is anticipated that the prices of securities held by the
Fund may fall, the Fund may sell an index futures contract. Conversely, if the
Fund wishes to hedge against anticipated price rises in those securities which
the Fund intends to purchase, the Fund may purchase an index futures contract.
 
     The Fund may purchase or sell currency futures on currencies in which its
portfolio securities (or anticipated portfolio securities) are denominated for
the purposes of hedging against anticipated changes in currency exchange rates.
The Fund will enter into currency futures contracts for the same reasons as set
forth above for entering into forward foreign currency contracts; namely, to
"lock-in" the value of a security purchased or sold in a given currency
vis-a-vis a different currency or to hedge against an adverse currency exchange
rate movement of a portfolio security's (or anticipated portfolio security's)
denominated currency vis-a-vis a different currency.
 
     In addition to the above, interest rate, index and currency futures may be
bought or sold in order to close out a short or long position maintained by the
Fund in a corresponding futures contract.
 
     Options on Futures Contracts.  The Fund may purchase and write call and put
options on futures contracts which are traded on an exchange and enter into
closing transactions with respect to such options to terminate an existing
position. An option on a futures contract gives the purchaser the right (in
return for the premium paid) to assume a position in a futures contract (a long
position if the option is a call and a short position if the option is a put) at
a specified exercise price at any time during the term of the option. Upon
exercise of the option, the delivery of the futures position by the writer of
the option to the holder of the option is accompanied by delivery of the
accumulated balance in the writer's futures margin account, which represents the
amount by which the market price of the futures
 
                                       15
<PAGE>   16
 
contract at the time of exercise exceeds, in the case of a call, or is less
than, in the case of a put, the exercise price of the option on the futures
contract.
 
     The Fund will purchase and write options on futures contracts for identical
purposes to those set forth above for the purchase of a futures contract
(purchase of a call option) and the sale of a futures contract (purchase of a
put option or sale of a call option), or to close out a long or short position
in futures contracts. If, for example, the Investment Manager or Sub-Adviser
wished to protect against an increase in interest rates and the resulting
negative impact on the value of a portion of its fixed-income portfolio, it
might write a call option on an interest rate futures contract, the underlying
security of which correlates with the portion of the portfolio the Investment
Manager or Sub-Adviser seeks to hedge. Any premiums received in the writing of
options on futures contracts may, of course, provide a further hedge against
losses resulting from price declines in portions of the Fund's portfolio.
 
     Limitations on Futures Contracts and Options on Futures.  The Fund may not
enter into futures contracts or purchase related options thereon if, immediately
thereafter, the amount committed to margin plus the amount paid for premiums for
unexpired options on futures contracts exceeds 5% of the value of the Fund's
total assets, after taking into account unrealized gains and unrealized losses
on such contracts it has entered into, provided, however, that in the case of an
option that is in-the-money (the exercise price of the call (put) option is less
(more) than the market price of the underlying security) at the time of
purchase, the in-the-money amount may be excluded in calculating the 5%.
However, there is no overall limitation on the percentage of the Fund's assets
which may be committed to a hedge position. Except as described above, there are
no other limitations on the use of futures and options thereon by the Fund.
 
     Risks of Options and Futures Transactions. The Fund may close out its
position as writer of an option, or as a buyer or seller of a futures contract,
only if a liquid secondary market exists for options or futures contracts of
that series. There is no assurance that such a market will exist, particularly
in the case of OTC options, as such options will generally only be closed out by
entering into a closing purchase transaction with the purchasing dealer.
 
     Exchanges may limit the amount by which the price of many futures contracts
may move on any day. If the price moves equal the daily limit on successive
days, then it may prove impossible to liquidate a futures position until the
daily limit moves have ceased.
 
     The extent to which the Fund may enter into transactions involving options
and futures contracts may be limited by the Code's requirements for
qualification as a regulated investment company and the Fund's intention to
qualify as such. See "Dividends, Distributions and Taxes."
 
     While the futures contracts and options transactions to be engaged in by
the Fund for the purpose of hedging the Fund's portfolio securities are not
speculative in nature, there are risks inherent in the use of such instruments.
One such risk is that the Fund's management could be incorrect in its
expectations as to the direction or extent of various interest rate or price
movements or the time span within which the movements take place. For example,
if the Fund sold futures contracts for the sale of securities in anticipation of
an increase in interest rates, and then interest rates went down instead,
causing bond prices to rise, the Fund would lose money on the sale.
 
     Another risk which may arise in employing futures contracts to protect
against the price volatility of portfolio securities is that the prices of
securities, currencies and indexes subject to futures contracts (and thereby the
futures contract prices) may correlate imperfectly with the behavior of the U.S.
dollar cash prices of the Fund's portfolio securities and their denominated
currencies. Another such risk is that prices of interest rate futures contracts
may not move in tandem with the changes in prevailing interest rates against
which the Fund seeks a hedge. A correlation may also be distorted
 
                                       16
<PAGE>   17
 
by the fact that the futures market is dominated by short-term traders seeking
to profit from the difference between a contract or security price objective and
their cost of borrowed funds. Such distortions are generally minor and would
diminish as the contract approached maturity.
 
     The Fund, by entering into transactions in foreign futures and options
markets, will also incur risks similar to those discussed above under the
section entitled "Foreign Securities."
 
     Compared to the purchase or sale of futures contracts, the purchase of call
or put options on futures contracts involves less potential risk to the Fund
because the maximum amount at risk is the premium paid for the options (plus
transaction costs). However, there may be circumstances when a purchase of a
call or put option on a futures contract would result in a loss to the Fund when
the purchase or sale of a futures contract would not result in a loss, such as
when there is no movement in the prices of the underlying securities. The
writing of a put or call option on a futures contract involves risks similar to
those relating to transactions in futures contracts, as are described above.
 
     Investment in Other Investment Vehicles. Under the Investment Company Act
of 1940, as amended (the "Act"), the Fund generally may invest up to 10% of its
total assets in the aggregate in shares of other investment companies and up to
5% of its total assets in any one investment company, as long as that investment
does not represent more than 3% of the voting stock of the acquired investment
company at the time such shares are purchased. Notwithstanding the foregoing,
the Fund may invest all or substantially all of its assets in another registered
investment company having the same investment objective and policies and
substantially the same investment restrictions as the Fund. (See "Additional
Information--Master/Feeder Conversion.") Investment in other investment
companies or vehicles may be the sole or most practical means by which the Fund
can participate in certain foreign markets. Such investment may involve the
payment of substantial premiums above the value of such issuers' portfolio
securities, and is subject to limitations under the Act and market availability.
In addition, special tax considerations may apply. The Fund does not intend to
invest in such vehicles or funds unless, in the judgment of the Investment
Manager, the potential benefits of such investment justify the payment of any
applicable premium or sales charge. As a shareholder in an investment company,
the Fund would bear its ratable share of that investment company's expenses,
including its advisory and administration fees. At the same time the Fund would
continue to pay its own management fees and other expenses, as a result of which
the Fund and its shareholders in effect will be absorbing duplicate levels of
advisory fees with respect to investments in such other investment companies.
 
     Standard & Poor's Depositary Receipts ("SPDRs").  The Fund may purchase
interests in a unit investment trust holding a portfolio of securities linked to
the S&P 500 Index. SPDRs closely track the underlying portfolio of securities,
trade like a share of common stock and pay periodic dividends proportionate to
those paid by the portfolio of stocks that comprise the S&P 500 Index. The Fund
will not invest in excess of 10% of its total assets in the aggregate in SPDRs
and up to 5% of its total assets in SPDRs issued by a single unit investment
trust. As a holder of interests in a unit investment trust, the Fund would
indirectly bear its ratable share of that unit investment trust's expenses. At
the same time the Fund would continue to pay its own management and advisory
fees and other expenses, as a result of which the Fund and its shareholders in
effect will be absorbing duplicate levels of fees with respect to investments in
such unit investment trusts. The liquidity of small holdings of SPDRs will
depend upon the existence and liquidity of a secondary market. See the Statement
of Additional Information for a further discussion of SPDRs.
 
     Rights and Warrants.  The Fund may acquire rights and/or warrants which are
attached to other securities in its portfolio, or which are issued as a
distribution by the issuer of a security held in its portfolio. Rights and/or
warrants are, in effect,
 
                                       17
<PAGE>   18
 
options to purchase equity securities at a specific price, generally valid for a
specific period of time, and have no voting rights, pay no dividends and have no
rights with respect to the corporation issuing them.
 
     Private Placements and Restricted Securities. The Fund may invest up to 15%
of its net assets in securities which are subject to restrictions on resale
because they have not been registered under the Securities Act of 1933, as
amended (the "Securities Act"), or which are otherwise restricted. (Securities
eligible for resale pursuant to Rule 144A under the Securities Act, and
determined to be liquid pursuant to the procedures discussed in the following
paragraph, are not subject to the foregoing restriction.) These securities are
generally referred to as private placements or restricted securities.
Limitations on the resale of such securities may have an adverse effect on their
marketability, and may prevent the Fund from disposing of them promptly at
reasonable prices. The Fund may have to bear the expense of registering such
securities for resale and the risk of substantial delays in effecting such
registration.
 
     The Securities and Exchange Commission has adopted Rule 144A under the
Securities Act, which permits the Fund to sell restricted securities to
qualified institutional buyers without limitation. The Investment Manager,
pursuant to procedures adopted by the Trustees of the Fund, will make a
determination as to the liquidity of each restricted security purchased by the
Fund. If a restricted security is determined to be "liquid," such security will
not be included within the category "illiquid securities," which under current
policy may not exceed 15% of the Fund's net assets. However, investing in Rule
144A securities could have the effect of increasing the level of Fund
illiquidity to the extent the Fund, at a particular point in time, may be unable
to find qualified institutional buyers interested in purchasing such securities.
 
     Repurchase Agreements.  The Fund may enter into repurchase agreements,
which may be viewed as a type of secured lending by the Fund, and which
typically involve the acquisition by the Fund of debt securities from a selling
financial institution such as a bank, savings and loan association or
broker-dealer. The agreement provides that the Fund will sell back to the
institution, and that the institution will repurchase, the underlying security
at a specified price and at a fixed time in the future, usually not more than
seven days from the date of purchase. While repurchase agreements involve
certain risks not associated with direct investments in debt securities,
including the risks of default or bankruptcy of the selling financial
institution, the Fund follows procedures to minimize such risks. These
procedures include effecting repurchase transactions only with large,
well-capitalized and well-established financial institutions and maintaining
adequate collateralization.
 
     Zero Coupon Securities.  A portion of the fixed-income securities purchased
by the Fund may be zero coupon securities. Such securities are purchased at a
discount from their face amount, giving the purchaser the right to receive their
full value at maturity. The interest earned on such securities is, implicitly,
automatically compounded and paid out at maturity. While such compounding at a
constant rate eliminates the risk of receiving lower yields upon reinvestment of
interest if prevailing interest rates decline, the owner of a zero coupon
security will be unable to participate in higher yields upon reinvestment of
interest received on interest-paying securities if prevailing interest rates
rise.
 
     A zero coupon security pays no interest to its holder during its life.
Therefore, to the extent the Fund invests in zero coupon securities, it will not
receive current cash available for distribution to shareholders. In addition,
zero coupon securities are subject to substantially greater price fluctuations
during periods of changing prevailing interest rates than are comparable
securities which pay interest on a current basis. Current federal tax law
requires that a holder (such as the Fund) of a zero coupon security accrue a
portion of the discount at which the security was purchased as income each year
even though the Fund receives no interest payments in cash on the security
during the year.
 
                                       18
<PAGE>   19
 
     When-Issued and Delayed Delivery Securities and Forward Commitments.  From
time to time, in the ordinary course of business, the Fund may purchase
securities on a when-issued or delayed delivery basis or may purchase or sell
securities on a forward commitment basis. When such transactions are negotiated,
the price is fixed at the time of the commitment, but delivery and payment can
take place a month or more after the date of the commitment. There is no overall
limit on the percentage of the Fund's assets which may be committed to the
purchase of securities on a when-issued, delayed delivery or forward commitment
basis. An increase in the percentage of the Fund's assets committed to the
purchase of securities on a when-issued, delayed delivery or forward commitment
basis may increase the volatility of the Fund's net asset value.
 
     When, As and If Issued Securities.  The Fund may purchase securities on a
"when, as and if issued" basis under which the issuance of the security depends
upon the occurrence of a subsequent event, such as approval of a merger,
corporate reorganization, leveraged buyout or debt restructuring. If the
anticipated event does not occur and the securities are not issued, the Fund
will have lost an investment opportunity. There is no overall limit on the
percentage of the Fund's assets which may be committed to the purchase of
securities on a "when, as and if issued" basis. An increase in the percentage of
the Fund's assets committed to the purchase of securities on a "when, as and if
issued" basis may increase the volatility of its net asset value.
 
     Lending of Portfolio Securities.  Consistent with applicable regulatory
requirements, the Fund may lend its portfolio securities to brokers, dealers and
other financial institutions, provided that such loans are callable at any time
by the Fund (subject to certain notice provisions described in the Statement of
Additional Information), and are at all times secured by cash or cash
equivalents, which are maintained in a segregated account pursuant to applicable
regulations and that are at least equal to the market value, determined daily,
of the loaned securities.
 
     Except as specifically noted, all investment objectives, policies and
practices discussed above are not fundamental policies of the Fund and, as such,
may be changed without shareholder approval.
 
     Year 2000.  The investment management services provided to the Fund by the
Investment Manager and the Sub-Adviser and the services provided to shareholders
by the Distributor and the Transfer Agent depend on the smooth functioning of
their computer systems. Many computer software systems in use today cannot
recognize the year 2000, but revert to 1900 or some other date, due to the
manner in which dates were encoded and calculated. That failure could have a
negative impact on the handling of securities trades, pricing and account
services. The Investment Manager, the Sub-Adviser, the Distributor and the
Transfer Agent have been actively working on necessary changes in their own
computer systems to prepare for the year 2000 and expect that their systems will
be adapted before that date, but there can be no assurance that they will be
successful, or that interaction with other non-complying computer systems will
not impair their services at that time. In addition, it is possible that the
markets for securities in which the Fund invests may be detrimentally affected
by computer failures throughout the financial services industry beginning
January 1, 2000. Improperly functioning trading systems may result in settlement
problems and liquidity issues. In addition, corporate and governmental data
processing errors may result in production problems for individual companies and
overall economic uncertainties. Earnings of individual issuers will be affected
by remediation costs, which may be substantial and may be reported
inconsistently in U.S. and foreign financial statements. Accordingly, the Fund's
investments may be adversely affected.
 
PORTFOLIO MANAGEMENT
 
     The Fund's portfolio is actively managed by its Investment Manager and the
Sub-Adviser with a view to achieving the Fund's investment objective. In
determining which securities to purchase for the
 
                                       19
<PAGE>   20
 
Fund or hold in the Fund's portfolio, the Investment Manager and the Sub-Adviser
will rely on information from various sources, including research, analysis and
appraisals of brokers and dealers, including Dean Witter Reynolds Inc. ("DWR"),
Morgan Stanley & Co. Incorporated and other broker-dealer affiliates of the
Investment Manager, and the Investment Manager's and Sub-Adviser's own analysis
of factors they deem relevant.
 
     The Sub-Adviser employs a multiple-manager, team system for the day-to-day
management of the Fund's portfolio. Currently, there are six portfolio managers
who are divided into two teams: a value team and a growth team. Each team has
three members, although there is no strategic necessity that the teams have
equal membership or that there be a certain number of managers in total. Each
manager works independently within his or her team style. Each team has a
designated team leader. Team leaders administer the value/growth style-tilt of
the portfolio. They also monitor the stock position limits and the
sector-representation weightings. The value team is comprised of Nicholas J.
Kovich, James Jolinger and Robert J. Marcin with Mr. Kovich acting as team
leader; the growth team is comprised of Arden C. Armstrong, Brian Kramp and Gary
G. Schlarbaum with Mr. Kramp acting as team leader. Ms. Armstrong, Mr. Kovich,
Mr. Marcin and Mr. Schlarbaum are Managing Directors of the Sub-Adviser and have
been managing portfolios for the Sub-Adviser which have a similar investment
approach to that of the Fund for over five years. Mr. Jolinger is a Principal of
the Sub-Adviser and the Director of Research; he has been associated with the
Sub-Adviser since 1994 and prior thereto was an equity analyst with Oppenheimer
Capital (1987-1994). Mr. Kramp is a Vice President of the Sub-Adviser and has
been affiliated with the Sub-Adviser since 1997. Prior thereto he was an
analyst/portfolio manager with Meridian Investment Company (1985-1997).
 
     Personnel of the Investment Manager and Sub-Adviser have substantial
experience in the use of the investment techniques described above under the
heading "Options and Futures Transactions," which techniques require skills
different from those needed to select the portfolio securities underlying
various options and futures contracts.
 
     Orders for transactions in portfolio securities and commodities may be
placed for the Fund with a number of brokers and dealers, including DWR, Morgan
Stanley & Co. Incorporated and other broker-dealer affiliates of the Investment
Manager or the Sub-Adviser. Pursuant to an order of the Securities and Exchange
Commission, the Fund may effect principal transactions in certain money market
instruments with DWR. In addition, the Fund may incur brokerage commissions on
transactions conducted through DWR, Morgan Stanley & Co. Incorporated and other
brokers and dealers that are affiliates of the Investment Manager or the Sub-
Adviser.
 
     It is not anticipated that the portfolio trading engaged in by the Fund
will result in its portfolio turnover rate exceeding 200% in any one year. The
Fund is expected to incur higher than normal brokerage commission costs due to
its portfolio turnover rate. Short-term gains and losses taxable at ordinary
income rates may result from such portfolio transactions. See "Dividends,
Distributions and Taxes" for a full discussion of the tax implications of the
Fund's trading policy. A more extensive discussion of the Fund's portfolio
brokerage policies is set forth in the Statement of Additional Information.
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
     The investment restrictions listed below are among the restrictions which
have been adopted by the Fund as fundamental policies. Under the Investment
Company Act of 1940, as amended (the "Act"), a fundamental policy may not be
changed without the vote of a majority of the outstanding voting securities of
the Fund, as defined in the Act. For purposes of the following limitations: (i)
all percentage limitations apply immediately after a purchase or initial
investment, and (ii) any subse-
 
                                       20
<PAGE>   21
 
quent change in any applicable percentage
resulting from market fluctuations or other changes in total or net assets does
not require elimination of any security from the portfolio.
 
     The Fund may not:
 
     1. As to 75% of its total assets, invest more than 5% of the value of its
total assets in the securities of any one issuer (other than obligations issued,
or guaranteed by, the United States Government, its agencies or
instrumentalities) except that the Fund may seek to achieve its investment
objective by investing all or substantially all of its assets in another
investment company having substantially the same investment objective and
policies as the Fund (a "Qualifying Portfolio").
 
     2. As to 75% of its total assets, purchase more than 10% of all outstanding
voting securities or any class of securities of any one issuer, except that the
Fund may invest all or substantially all of its assets in a Qualifying
Portfolio.
 
     3. Invest 25% or more of the value of its total assets in securities of
issuers in any one industry. This restriction does not apply to obligations
issued or guaranteed by the United States Government or its agencies or
instrumentalities.
 
UNDERWRITING
- --------------------------------------------------------------------------------
 
   
     Dean Witter Distributors Inc. (the "Underwriter") has agreed to purchase up
to 10,000,000 shares from the Fund, which number may be increased or decreased
in accordance with the Underwriting Agreement. The initial offering will run
approximately from June 24, 1998 through July 24, 1998. The Underwriting
Agreement provides that the obligation of the Underwriter is subject to certain
conditions precedent and that the Underwriter will be obligated to purchase the
shares on July 29, 1998, or such other date as may be agreed upon by the
Underwriter and the Fund (the "Closing Date"). Shares will not be issued and
dividends will not be declared by the Fund until after the Closing Date. For
this reason, payment is not required to be made prior to the Closing Date. If
any orders received during the initial offering period are accompanied by
payment, such payment will be returned unless an accompanying request for
investment in a Dean Witter money market fund is received at the time the
payment is made. Prospective investors in money market funds should request and
read the money market fund prospectus prior to investing. All such funds
received and invested in a Morgan Stanley Dean Witter money market fund will be
automatically invested in the Portfolio on the Closing Date without any further
action by the investor. Any investor may cancel his or her purchase of Portfolio
shares without penalty at any time prior to the Closing Date.
    
 
     The Underwriter will purchase Class B, Class C and Class D shares from the
Fund at $10.00 per share with all proceeds going to the Fund and will purchase
Class A shares at $10.00 per share plus a sales charge with the sales charge
paid to the Underwriter and the net asset value of $10.00 per share going to the
Fund. The Underwriter may, however, receive contingent deferred sales charges
from future redemptions of Class A, Class B and Class C shares (see "Purchase of
Fund Shares--Continuous Offering").
 
     The Underwriter shall, regardless of its expected underwriting commitment,
be entitled and obligated to purchase only the number of shares for which
purchase orders have been received by the Underwriter prior to 2:00 p.m., New
York time, on the third business day preceding the Closing Date, or such other
date as may be agreed to between the parties.
 
     The minimum number of Fund shares which may be purchased by any shareholder
pursuant to this offering is 100 shares. Certificates for shares purchased will
not be issued unless requested by the shareholder in writing.
 
                                       21
<PAGE>   22
 
PURCHASE OF FUND SHARES--CONTINUOUS OFFERING
- --------------------------------------------------------------------------------
 
GENERAL
 
     The Fund offers each class of its shares for sale to the public on a
continuous basis. Pursuant to a Distribution Agreement between the Fund and Dean
Witter Distributors Inc. (the "Distributor"), an affiliate of the Investment
Manager, shares of the Fund are distributed by the Distributor and offered by
DWR and other dealers which have entered into selected dealer agreements with
the Distributor ("Selected Broker-Dealers"). The principal executive office of
the Distributor is located at Two World Trade Center, New York, New York 10048.
 
   
     The Fund offers four classes of shares (each, a "Class"). Class A shares
are sold to investors with an initial sales charge that declines to zero for
larger purchases; however, Class A shares sold without an initial sales charge
are subject to a contingent deferred sales charge ("CDSC") of 1.0% if redeemed
within one year of purchase, except for certain specific circumstances. Class B
shares are sold without an initial sales charge but are subject to a CDSC
(scaled down from 5.0% to 1.0%) payable upon most redemptions within six years
after purchase. (Class B shares purchased by certain qualified plans are subject
to a CDSC scaled down from 2.0% to 1.0% if redeemed within three years after
purchase.) Class C shares are sold without an initial sales charge but are
subject to a CDSC of 1.0% on most redemptions made within one year after
purchase. Class D shares are sold without an initial sales charge or CDSC and
are available only to investors meeting an initial investment minimum of $5
million ($25 million for certain qualified plans), and to certain other limited
categories of investors. At the discretion of the Board of Trustees of the Fund,
Class A shares may be sold to categories of investors in addition to those set
forth in this prospectus at net asset value without a front-end sales charge,
and Class D shares may be sold to certain other categories of investors, in each
case as may be described in the then current prospectus of the Fund. See
"Alternative Purchase Arrangements--Selecting a Particular Class" for a
discussion of factors to consider in selecting which Class of shares to
purchase.
    
 
   
     The minimum initial purchase is $1,000 for each Class of shares, although
Class D shares are only available to persons investing $5 million ($25 million
for certain qualified plans) or more and to certain other limited categories of
investors. For the purpose of meeting the minimum $5 million (or $25 million)
initial investment for Class D shares, and subject to the $1,000 minimum initial
investment for each Class of the Fund, an investor's existing holdings of Class
A shares of the Fund and other Morgan Stanley Dean Witter Funds that are
multiple class funds ("Morgan Stanley Dean Witter Multi-Class Funds") and shares
of Morgan Stanley Dean Witter Funds sold with a front-end sales charge ("FSC
Funds") and concurrent investments in Class D shares of the Fund and other
Morgan Stanley Dean Witter Multi-Class Funds will be aggregated. Subsequent
purchases of $100 or more may be made by sending a check, payable to Morgan
Stanley Dean Witter Equity Fund, directly to Morgan Stanley Dean Witter Trust
FSB (the "Transfer Agent" or "MSDW Trust") at P.O. Box 1040, Jersey City, NJ
07303 or by contacting a Morgan Stanley Dean Witter Financial Advisor or other
Selected Broker-Dealer representative. When purchasing shares of the Fund,
investors must specify whether the purchase is for Class A, Class B, Class C or
Class D shares. If no Class is specified, the Transfer Agent will not process
the transaction until the proper Class is identified. The minimum initial
purchase, in the case of investments through EasyInvest(SM), an automatic
purchase plan (see "Shareholder Services"), is $100, provided that the schedule
of automatic investments will result in investments totalling at least $1,000
within the first twelve months. The minimum initial purchase in the case of an
"Education IRA" is $500, if the Distributor has reason to believe that
additional investments will increase the investment in the account to $1,000
within three years. In
    
 
                                       22
<PAGE>   23
 
the case of investments pursuant to (i) Systematic Payroll Deduction Plans
(including Individual Retirement Plans), (ii) the InterCapital mutual fund asset
allocation program and (iii) fee-based programs approved by the Distributor,
pursuant to which participants pay an asset based fee for services in the nature
of investment advisory, administrative and/or brokerage services, the Fund, in
its discretion, may accept investments without regard to any minimum amounts
which would otherwise be required, provided, in the case of Systematic Payroll
Deduction Plans, that the Distributor if the Fund has reason to believe that
additional investments will increase the investment in all accounts under such
Plans to at least $1,000. Certificates for shares purchased will not be issued
unless a request is made by the shareholder in writing to the Transfer Agent.
 
     Shares of the Fund are sold through the Distributor on a normal three
business day settlement basis; that is, payment is due on the third business day
(settlement date) after the order is placed with the Distributor. Since DWR and
other Selected Broker-Dealers forward investors' funds on settlement date they
will benefit from the temporary use of the funds if payment is made prior
thereto. As noted above, orders placed directly with the Transfer Agent must be
accompanied by payment. Investors will be entitled to receive income dividends
and capital gain distributions if their order is received by the close of
business on the day prior to the record date for such dividends and
distributions. Sales personnel of a Selected Broker-Dealer are compensated for
selling shares of the Fund at the time of their sale by the Distributor or any
of its affiliates and/or the Selected Broker-Dealer. In addition, some sales
personnel of the Selected Broker-Dealer will receive various types of non-cash
compensation as special sales incentives, including trips, educational and/or
business seminars and merchandise. The Fund and the Distributor reserve the
right to reject any purchase orders.
 
ALTERNATIVE PURCHASE ARRANGEMENTS
 
     The Fund offers several Classes of shares to investors designed to provide
them with the flexibility of selecting an investment best suited to their needs.
The general public is offered three Classes of shares: Class A shares, Class B
shares and Class C shares, which differ principally in terms of sales charges
and rate of expenses to which they are subject. A fourth Class of shares, Class
D shares, is offered only to limited categories of investors (see "No Load
Alternative--Class D Shares" below).
 
     Each Class A, Class B, Class C or Class D share of the Fund represents an
identical interest in the investment portfolio of the Fund except that Class A,
Class B and Class C shares bear the expenses of the ongoing shareholder service
fees, Class B and Class C shares bear the expenses of the ongoing distribution
fees and Class A, Class B and Class C shares which are redeemed subject to a
CDSC bear the expense of the additional incremental distribution costs resulting
from the CDSC applicable to shares of those Classes. The ongoing distribution
fees that are imposed on Class A, Class B and Class C shares will be imposed
directly against those Classes and not against all assets of the Fund and,
accordingly, such charges against one Class will not affect the net asset value
of any other Class or have any impact on investors choosing another sales charge
option. See "Plan of Distribution" and "Redemptions and Repurchases."
 
     Set forth below is a summary of the differences between the Classes and the
factors an investor should consider when selecting a particular Class. This
summary is qualified in its entirety by detailed discussion of each Class that
follows this summary.
 
     Class A Shares.  Class A shares are sold at net asset value plus an initial
sales charge of up to 5.25%. The initial sales charge is reduced for certain
purchases. Investments of $1 million or more (and investments by certain other
limited categories of investors) are not subject to any sales charges at the
time of purchase but are subject to a CDSC of 1.0% on redemptions made within
one year after purchase, except for certain specific circumstances. Class A
shares are also subject to a 12b-1 fee of up to 0.25% of the average daily net
assets of the
 
                                       23
<PAGE>   24
 
Class. See "Initial Sales Charge Alternative--Class A Shares."
 
     Class B Shares.  Class B shares are offered at net asset value with no
initial sales charge but are subject to a CDSC (scaled down from 5.0% to 1.0%)
if redeemed within six years of purchase. (Class B shares purchased by certain
qualified plans are subject to a CDSC scaled down from 2.0% to 1.0% if redeemed
within three years after purchase.) This CDSC may be waived for certain
redemptions. Class B shares are also subject to an annual 12b-1 fee of 1.0% of
the average daily net assets of Class B. The Class B shares' distribution fee
will cause that Class to have higher expenses and pay lower dividends than Class
A or Class D shares.
 
     After approximately ten (10) years, Class B shares will convert
automatically to Class A shares of the Fund, based on the relative net asset
values of the shares of the two Classes on the conversion date. In addition, a
certain portion of Class B shares that have been acquired through the
reinvestment of dividends and distributions will be converted at that time. See
"Contingent Deferred Sales Charge Alternative--Class B Shares."
 
     Class C Shares.  Class C shares are sold at net asset value with no initial
sales charge but are subject to a CDSC of 1.0% on redemptions made within one
year after purchase. This CDSC may be waived for certain redemptions. They are
subject to an annual 12b-1 fee of up to 1.0% of the average daily net assets of
the Class C shares. The Class C shares' distribution fee may cause that Class to
have higher expenses and pay lower dividends than Class A or Class D shares. See
"Level Load Alternative--Class C Shares."
 
     Class D Shares.  Class D shares are available only to limited categories of
investors (see "No Load Alternative--Class D Shares" below). Class D shares are
sold at net asset value with no initial sales charge or CDSC. They are not
subject to any 12b-1 fees. See "No Load Alternative--Class D Shares."
 
     Selecting a Particular Class.  In deciding which Class of Fund shares to
purchase, investors should consider the following factors, as well as any other
relevant facts and circumstances:
 
     The decision as to which Class of shares is more beneficial to an investor
depends on the amount and intended length of his or her investment. Investors
who prefer an initial sales charge alternative may elect to purchase Class A
shares. Investors qualifying for significantly reduced or, in the case of
purchases of $1 million or more, no initial sales charges may find Class A
shares particularly attractive because similar sales charge reductions are not
available with respect to Class B or Class C shares. Moreover, Class A shares
are subject to lower ongoing expenses than are Class B or Class C shares over
the term of the investment. As an alternative, Class B and Class C shares are
sold without any initial sales charge so the entire purchase price is
immediately invested in the Fund. Any investment return on these additional
investment amounts may partially or wholly offset the higher annual expenses of
these Classes. Because the Fund's future return cannot be predicted, however,
there can be no assurance that this would be the case.
 
     Finally, investors should consider the effect of the CDSC period and any
conversion rights of the Classes in the context of their own investment time
frame. For example, although Class C shares are subject to a significantly lower
CDSC upon redemptions, they do not, unlike Class B shares, convert into Class A
shares after approximately ten years, and, therefore, are subject to an ongoing
12b-1 fee of 1.0% (rather than the 0.25% fee applicable to Class A shares) for
an indefinite period of time. Thus, Class B shares may be more attractive than
Class C shares to investors with longer term investment outlooks. Other
investors, however, may elect to purchase Class C shares if, for example, they
determine that they do not wish to be subject to a front-end sales charge and
they are uncertain as to the length of time they intend to hold their shares.
 
                                       24
<PAGE>   25
 
   
     For the purpose of meeting the $5 million (or $25 million) minimum
investment amount for Class D shares, holdings of Class A shares in all Morgan
Stanley Dean Witter Multi-Class Funds, shares of FSC Funds and shares of Morgan
Stanley Dean Witter Funds for which such shares have been exchanged will be
included together with the current investment amount.
    
 
     Sales personnel may receive different compensation for selling each Class
of shares. Investors should understand that the purpose of a CDSC is the same as
that of the initial sales charge in that the sales charges applicable to each
Class provide for the financing of the distribution of shares of that Class.
 
     Set forth below is a chart comparing the sales charge, 12b-1 fees and
conversion options applicable to each Class of shares:
<TABLE>
<CAPTION>
 
<C>    <S>               <C>         <C>
                                        CONVERSION
CLASS    SALES CHARGE    12B-1 FEE       FEATURE
 
<CAPTION>
<C>    <S>               <C>         <C>
  A    Maximum 5.25%      0.25%             No
       initial sales
       charge reduced
       for purchases of
       $25,000 and
       over; shares
       sold without an
       initial sales
       charge generally
       subject to a
       1.0% CDSC during
       first year.
  B    Maximum 5.0%       1.0%       B shares convert
       CDSC during the               to A shares
       first year                    automatically
       decreasing to 0               after
       after six years               approximately
                                     ten years
  C    1.0% CDSC during   1.0%              No
       first year......
  D          None         None              No
</TABLE>
 
     See "Purchase of Fund Shares" and "The Fund and its Management" for a
complete description of the sales charges and service and distribution fees for
each Class of shares and "Determination of Net Asset Value," "Dividends,
Distributions and Taxes" and "Shareholder Services--Exchange Privilege" for
other differences between the Classes of shares.
 
INITIAL SALES CHARGE ALTERNATIVE--CLASS A SHARES
 
     Class A shares are sold at net asset value plus an initial sales charge. In
some cases, reduced sales charges may be available, as described below.
Investments of $1 million or more (and investments by certain other limited
categories of investors) are not subject to any sales charges at the time of
purchase but are subject to a CDSC of 1.0% on redemptions made within one year
after purchase (calculated from the last day of the month in which the shares
were purchased), except for certain specific circumstances. The CDSC will be
assessed on an amount equal to the lesser of the current market value or the
cost of the shares being redeemed. The CDSC will not be imposed (i) in the
circumstances set forth below in the section "Contingent Deferred Sales Charge
Alternative--Class B Shares--CDSC Waivers," except that the references to six
years in the first paragraph of that section shall mean one year in the case of
Class A shares, and (ii) in the circumstances identified in the section
"Additional Net Asset Value Purchase Options" below. Class A shares are also
subject to an annual 12b-1 fee of up to 0.25% of the average daily net assets of
the Class.
 
     The offering price of Class A shares will be the net asset value per share
next determined following receipt of an order (see "Determination of Net Asset
Value" below), plus a sales charge
 
                                       25
<PAGE>   26
 
(expressed as a percentage of the offering price) on a single transaction as
shown in the following table:
 
<TABLE>
<CAPTION>
                                     SALES CHARGE
                                     ------------
                            PERCENTAGE OF      APPROXIMATE
    AMOUNT OF SINGLE       PUBLIC OFFERING    PERCENTAGE OF
       TRANSACTION              PRICE        AMOUNT INVESTED
- -------------------------  ---------------   ---------------
<S>                        <C>               <C>
Less than $25,000........       5.25%             5.54%
$25,000 but less
     than $50,000........       4.75%             4.99%
$50,000 but less
     than $100,000.......       4.00%             4.17%
$100,000 but less
     than $250,000.......       3.00%             3.09%
$250,000 but less
     than $1 million.....       2.00%             2.04%
$1 million and over......          0                 0
</TABLE>
 
     Upon notice to all Selected Broker-Dealers, the Distributor may reallow up
to the full applicable sales charge as shown in the above schedule during
periods specified in such notice. During periods when 90% or more of the sales
charge is reallowed, such Selected Broker-Dealers may be deemed to be
underwriters as that term is defined in the Securities Act of 1933.
 
     The above schedule of sales charges is applicable to purchases in a single
transaction by, among others: (a) an individual; (b) an individual, his or her
spouse and their children under the age of 21 purchasing shares for his, her or
their own accounts; (c) a trustee or other fiduciary purchasing shares for a
single trust estate or a single fiduciary account; (d) a pension, profit-sharing
or other employee benefit plan qualified or non-qualified under Section 401 of
the Internal Revenue Code; (e) tax-exempt organizations enumerated in Section
501(c)(3) or (13) of the Internal Revenue Code; (f) employee benefit plans
qualified under Section 401 of the Internal Revenue Code of a single employer or
of employers who are "affiliated persons" of each other within the meaning of
Section 2(a)(3)(c) of the Act; and for investments in Individual Retirement
Accounts of employees of a single employer through Systematic Payroll Deduction
plans; or (g) any other organized group of persons, whether incorporated or not,
provided the organization has been in existence for at least six months and has
some purpose other than the purchase of redeemable securities of a registered
investment company at a discount.
 
   
     Combined Purchase Privilege.  Investors may have the benefit of reduced
sales charges in accordance with the above schedule by combining purchases of
Class A shares of the Fund in single transactions with the purchase of Class A
shares of other Morgan Stanley Dean Witter Multi-Class Funds and shares of FSC
Funds. The sales charge payable on the purchase of the Class A shares of the
Fund, the Class A shares of the other Morgan Stanley Dean Witter Multi-Class
Funds and the shares of the FSC Funds will be at their respective rates
applicable to the total amount of the combined concurrent purchases of such
shares.
    
 
   
     Right of Accumulation.  The above persons and entities may benefit from a
reduction of the sales charges in accordance with the above schedule if the
cumulative net asset value of Class A shares purchased in a single transaction,
together with shares of the Fund and other Morgan Stanley Dean Witter Funds
previously purchased at a price including a front-end sales charge (including
shares of the Fund and other Morgan Stanley Dean Witter Funds acquired in
exchange for those shares, and including in each case shares acquired through
reinvestment of dividends and distributions), which are held at the time of such
transaction, amounts to $25,000 or more. If such investor has a cumulative net
asset value of shares of FSC Funds and Class A and Class D shares that, together
with the current investment amount, is equal to at least $5 million ($25 million
for certain qualified plans), such investor is eligible to purchase Class D
shares subject to the $1,000 minimum initial investment requirement of that
Class of the Fund. See "No Load Alternative--Class D Shares" below.
    
 
     The Distributor must be notified by DWR or a Selected Broker-Dealer or the
shareholder at the time a purchase order is placed that the purchase qualifies
for the reduced charge under the Right of Accumulation. Similar notification
must be made in writing by the dealer or shareholder when such an
 
                                       26
<PAGE>   27
 
order is placed by mail. The reduced sales charge will not be granted if: (a)
such notification is not furnished at the time of the order; or (b) a review of
the records of the Selected Broker-Dealer or the Transfer Agent fails to confirm
the investor's represented holdings.
 
   
     Letter of Intent.  The foregoing schedule of reduced sales charges will
also be available to investors who enter into a written Letter of Intent
providing for the purchase, within a thirteen-month period, of Class A shares of
the Fund from DWR or other Selected Broker-Dealers. The cost of Class A shares
of the Fund or shares of other Morgan Stanley Dean Witter Funds which were
previously purchased at a price including a front-end sales charge during the
90-day period prior to the date of receipt by the Distributor of the Letter of
Intent, or of Class A shares of the Fund or shares of other Morgan Stanley Dean
Witter Funds acquired in exchange for shares of such funds purchased during such
period at a price including a front-end sales charge, which are still owned by
the shareholder, may also be included in determining the applicable reduction.
    
 
     Additional Net Asset Value Purchase Options. In addition to investments of
$1 million or more, Class A shares also may be purchased at net asset value by
the following:
 
     (1) trusts for which MSDW Trust (an affiliate of the Investment Manager)
provides discretionary trustee services;
 
     (2) persons participating in a fee-based program approved by the
Distributor, pursuant to which such persons pay an asset based fee for services
in the nature of investment advisory, administrative and/or brokerage services
(such investments are subject to all of the terms and conditions of such
programs, which may include termination fees mandatory redemption upon
termination and such other circumstances as specified in the programs'
aggreements, and restrictions on transferability of Fund shares);
 
     (3) employer-sponsored 401(k) and other plans qualified under Section
401(a) of the Internal Revenue Code ("Qualified Retirement Plans") with at least
200 eligible employees and for which MSDW Trust serves as Trustee or DWR's
Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement;
 
     (4) Qualified Retirement Plans for which MSDW Trust serves as Trustee or
DWR's Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement whose Class B shares have converted to Class A
shares, regardless of the plan's asset size or number of eligible employees;
 
   
     (5) investors who are clients of a Morgan Stanley Dean Witter Financial
Advisor who joined Morgan Stanley Dean Witter from another investment firm
within six months prior to the date of purchase of Fund shares by such
investors, if the shares are being purchased with the proceeds from a redemption
of shares of an open-end proprietary mutual fund of the Financial Advisor's
previous firm which imposed either a front-end or deferred sales charge,
provided such purchase was made within sixty days after the redemption and the
proceeds of the redemption had been maintained in the interim in cash or a money
market fund; and
    
 
     (6) other categories of investors, at the discretion of the Board, as
disclosed in the then current prospectus of the Fund.
 
     No CDSC will be imposed on redemptions of shares purchased pursuant to
paragraphs (1), (2) or (5), above.
 
     For further information concerning purchases of the Fund's shares, contact
DWR or another Selected Broker-Dealer or consult the Statement of Additional
Information.
 
CONTINGENT DEFERRED SALES CHARGE ALTERNATIVE--
CLASS B SHARES
 
     Class B shares are sold at net asset value next determined without an
initial sales charge so that the full amount of an investor's purchase payment
 
                                       27
<PAGE>   28
 
may be immediately invested in the Fund. A CDSC, however, will be imposed on
most Class B shares redeemed within six years after purchase. The CDSC will be
imposed on any redemption of shares if after such redemption the aggregate
current value of a Class B account with the Fund falls below the aggregate
amount of the investor's purchase payments for Class B shares made during the
six years (or, in the case of shares held by certain Qualified Retirement Plans,
three years) preceding the redemption. In addition, Class B shares are subject
to an annual 12b-1 fee of 1.0% of the average daily net assets of Class B.
 
     Except as noted below, Class B shares of the Fund which are held for six
years or more after purchase (calculated from the last day of the month in which
the shares were purchased) will not be subject to any CDSC upon redemption.
Shares redeemed earlier than six years after purchase may, however, be subject
to a CDSC which will be a percentage of the dollar amount of shares redeemed and
will be assessed on an amount equal to the lesser of the current market value or
the cost of the shares being redeemed. The size of this percentage will depend
upon how long the shares have been held, as set forth in the following table:
 
<TABLE>
<CAPTION>
         YEAR SINCE               CDSC AS A
          PURCHASE              PERCENTAGE OF
        PAYMENT MADE           AMOUNT REDEEMED
        ------------           ---------------
<S>                            <C>
First........................       5.0%
Second.......................       4.0%
Third........................       3.0%
Fourth.......................       2.0%
Fifth........................       2.0%
Sixth........................       1.0%
Seventh and thereafter.......       None
</TABLE>
 
     In the case of Class B shares of the Fund purchased by Qualified Retirement
Plans for which MSDW Trust serves as Trustee or DWR's Retirement Plan Services
serves as recordkeeper pursuant to a written Recordkeeping Services Agreement,
shares held for three years or more after purchase (calculated as described in
the paragraph above) will not be subject to any CDSC upon redemption. However,
shares redeemed earlier than three years after purchase may be subject to a CDSC
(calculated as described in the paragraph above), the percentage of which will
depend on how long the shares have been held, as set forth in the following
table:
 
<TABLE>
<CAPTION>
         YEAR SINCE               CDSC AS A
          PURCHASE              PERCENTAGE OF
        PAYMENT MADE           AMOUNT REDEEMED
        ------------           ---------------
<S>                            <C>
First........................       2.0%
Second.......................       2.0%
Third........................       1.0%
Fourth and thereafter........       None
</TABLE>
 
   
     CDSC Waivers.  A CDSC will not be imposed on: (i) any amount which
represents an increase in value of shares purchased within the six years (or, in
the case of shares held by certain Qualified Retirement Plans, three years)
preceding the redemption; (ii) the current net asset value of shares purchased
more than six years (or, in the case of shares held by certain Qualified
Retirement Plans, three years) prior to the redemption; and (iii) the current
net asset value of shares purchased through reinvestment of dividends or
distributions and/or shares acquired in exchange for shares of FSC Funds or of
other Morgan Stanley Dean Witter Funds acquired in exchange for such shares.
Moreover, in determining whether a CDSC is applicable it will be assumed that
amounts described in (i), (ii) and (iii) above (in that order) are redeemed
first.
    
 
     In addition, the CDSC, if otherwise applicable, will be waived in the case
of:
 
     (1) redemptions of shares held at the time a shareholder dies or becomes
disabled, only if the shares are: (A) registered either in the name of an
individual shareholder (not a trust), or in the names of such shareholder and
his or her spouse as joint tenants with right of survivorship; or (B) held in a
qualified corporate or self-employed retirement plan, Individual Retirement
Account ("IRA") or Custodial Account under Section 403(b)(7) of the Internal
Revenue Code ("403(b) Custodial Account"), provided in either case that the
redemption is
 
                                       28
<PAGE>   29
 
requested within one year of the death or initial determination of disability;
 
     (2) redemptions in connection with the following retirement plan
distributions: (A) lump-sum or other distributions from a qualified corporate or
self-employed retirement plan following retirement (or, in the case of a "key
employee" of a "top heavy" plan, following attainment of age 59 1/2); (B)
distributions from an IRA or 403(b) Custodial Account following attainment of
age 59 1/2; or (C) a tax-free return of an excess contribution to an IRA; and
 
     (3) all redemptions of shares held for the benefit of a participant in a
Qualified Retirement Plan which offers investment companies managed by the
Investment Manager or its subsidiary, Dean Witter Services Company Inc., as
self-directed investment alternatives and for which MSDW Trust serves as Trustee
or DWR's Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement ("Eligible Plan"), provided that either: (A)
the plan continues to be an Eligible Plan after the redemption; or (B) the
redemption is in connection with the complete termination of the plan involving
the distribution of all plan assets to participants.
 
     With reference to (1) above, for the purpose of determining disability, the
Distributor utilizes the definition of disability contained in Section 72(m)(7)
of the Internal Revenue Code, which relates to the inability to engage in
gainful employment. With reference to (2) above, the term "distribution" does
not encompass a direct transfer of IRA, 403(b) Custodial Account or retirement
plan assets to a successor custodian or trustee. All waivers will be granted
only following receipt by the Distributor of confirmation of the shareholder's
entitlement.
 
   
     Conversion to Class A Shares.  Class B shares will convert automatically to
Class A shares, based on the relative net asset values of the shares of the two
Classes on the conversion date, which will be approximately ten (10) years after
the date of the original purchase. The ten year period is calculated from the
last day of the month in which the shares were purchased or, in the case of
Class B shares acquired through an exchange or a series of exchanges, from the
last day of the month in which the original Class B shares were purchased,
provided that shares acquired in exchange for shares of another fund originally
purchased before May 1, 1997 will convert to Class A shares in May, 2007. The
conversion of shares purchased on or after May 1, 1997 will take place in the
month following the tenth anniversary of the purchase. There will also be
converted at that time such proportion of Class B shares acquired through
automatic reinvestment of dividends and distributions owned by the shareholder
as the total number of his or her Class B shares converting at the time bears to
the total number of outstanding Class B shares purchased and owned by the
shareholder. In the case of Class B shares held by a Qualified Retirement Plan
for which MSDW Trust serves as Trustee or DWR's Retirement Plan Services serves
as recordkeeper pursuant to a written Recordkeeping Services Agreement, the plan
is treated as a single investor and all Class B shares will convert to Class A
shares on the conversion date of the first shares of a Morgan Stanley Dean
Witter Multi-Class Fund purchased by that plan. In the case of Class B shares
previously exchanged for shares of an "Exchange Fund" (see "Shareholder
Services--Exchange Privilege"), the period of time the shares were held in the
Exchange Fund (calculated from the last day of the month in which the Exchange
Fund shares were acquired) is excluded from the holding period for conversion.
If those shares are subsequently re-exchanged for Class B shares of a Morgan
Stanley Dean Witter Multi-Class Fund, the holding period resumes on the last day
of the month in which Class B shares are reacquired.
    
 
     If a shareholder has received share certificates for Class B shares, such
certificates must be delivered to the Transfer Agent at least one week prior to
the date for conversion. Class B shares evidenced by share certificates that are
not received by the Transfer Agent at least one week prior to any conversion
date will be converted into Class A shares on the next scheduled conversion date
after such certificates are received.
 
                                       29
<PAGE>   30
 
     Effectiveness of the conversion feature is subject to the continuing
availability of a ruling of the Internal Revenue Service or an opinion of
counsel that (i) the conversion of shares does not constitute a taxable event
under the Internal Revenue Code, (ii) Class A shares received on conversion will
have a basis equal to the shareholder's basis in the converted Class B shares
immediately prior to the conversion, and (iii) Class A shares received on
conversion will have a holding period that includes the holding period of the
converted Class B shares. The conversion feature may be suspended if the ruling
or opinion is no longer available. In such event, Class B shares would continue
to be subject to Class B 12b-1 fees.
 
LEVEL LOAD ALTERNATIVE--CLASS C SHARES
 
   
     Class C shares are sold at net asset value next determined without an
initial sales charge but are subject to a CDSC of 1.0% on most redemptions made
within one year after purchase (calculated from the last day of the month in
which the shares were purchased). The CDSC will be assessed on an amount equal
to the lesser of the current market value or the cost of the shares being
redeemed. The CDSC will not be imposed in the circumstances set forth above in
the section "Contingent Deferred Sales Charge Alternative--Class B Shares--CDSC
Waivers," except that the references to six years in the first paragraph of that
section shall mean one year in the case of Class C shares. Class C shares are
subject to an annual 12b-1 fee of up to 1.0% of the average daily net assets of
the Class. Unlike Class B shares, Class C shares have no conversion feature and,
accordingly, an investor that purchases Class C shares will be subject to 12b-1
fees applicable to Class C shares for an indefinite period subject to annual
approval by the Fund's Board of Trustees and regulatory limitations.
    
 
NO LOAD ALTERNATIVE--CLASS D SHARES
 
   
     Class D shares are offered without any sales charge on purchase or
redemption and without any 12b-1 fee. Class D shares are offered only to
investors meeting an initial investment minimum of $5 million ($25 million for
Qualified Retirement Plans for which MSDW Trust serves as Trustee or DWR's
Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement) and the following categories of investors: (i)
investors participating in the InterCapital mutual fund asset allocation program
pursuant to which such persons pay an asset based fee; (ii) persons
participating in a fee-based program approved by the Distributor, pursuant to
which such persons pay an asset based fee for services in the nature of
investment advisory, administrative and/or brokerage services (subject to all of
the terms and conditions of such programs referred to in (i) and (ii) above,
which may include termination fees mandatory redemptions upon termination and
such other circumstance as specified in the programs' agreements, and
restrictions on transferability of Fund shares); (iii) 401(k) plans established
by DWR and SPS Transaction Services, Inc. (an affiliate of DWR) for their
employees; (iv) certain Unit Investment Trusts sponsored by DWR; (v) certain
other open-end investment companies whose shares are distributed by the
Distributor; and (vi) other categories of investors, at the discretion of the
Board, as disclosed in the then current prospectus of the Fund. Investors who
require a $5 million (or $25 million) minimum initial investment to qualify to
purchase Class D shares may satisfy that requirement by investing that amount in
a single transaction in Class D shares of the Fund and other Morgan Stanley Dean
Witter Multi-Class Funds, subject to the $1,000 minimum initial investment
required for that Class of the Fund. In addition, for the purpose of meeting the
$5 million (or $25 million) minimum investment amount, holdings of Class A
shares in all Morgan Stanley Dean Witter Multi-Class Funds, shares of FSC Funds
and shares of Morgan Stanley Dean Witter Funds for which such shares have been
exchanged will be included together with the current investment amount. If a
shareholder redeems Class A shares and purchases Class D shares, such redemption
may be a taxable event.
    
 
                                       30
<PAGE>   31
 
PLAN OF DISTRIBUTION
 
     The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under
the Act with respect to the distribution of Class A, Class B and Class C shares
of the Fund. In the case of Class A and Class C shares, the Plan provides that
the Fund will reimburse the Distributor and others for the expenses of certain
activities and services incurred by them specifically on behalf of those shares.
Reimbursements for these expenses will be made in monthly payments by the Fund
to the Distributor, which will in no event exceed amounts equal to payments at
the annual rates of 0.25% and 1.0% of the average daily net assets of Class A
and Class C, respectively. In the case of Class B shares, the Plan provides that
the Fund will pay the Distributor a fee, which is accrued daily and paid
monthly, at the annual rate of 1.0% of the net assets of Class B. The fee is
treated by the Fund as an expense in the year it is accrued. In the case of
Class A shares, the entire amount of the fee currently represents a service fee
within the meaning of the NASD guidelines. In the case of Class B and Class C
shares, a portion of the fee payable pursuant to the Plan, equal to 0.25% of the
average daily net assets of each of these Classes, is currently characterized as
a service fee. A service fee is a payment made for personal service and/or the
maintenance of shareholder accounts.
 
   
     Additional amounts paid under the Plan in the case of Class B and Class C
shares are paid to the Distributor for services provided and the expenses borne
by the Distributor and others in the distribution of the shares of those
Classes, including the payment of commissions for sales of the shares of those
Classes and incentive compensation to and expenses of Morgan Stanley Dean Witter
Financial Advisors and others who engage in or support distribution of shares or
who service shareholder accounts, including overhead and telephone expenses;
printing and distribution of prospectuses and reports used in connection with
the offering of the Fund's shares to other than current shareholders; and
preparation, printing and distribution of sales literature and advertising
materials. In addition, the Distributor may utilize fees paid pursuant to the
Plan in the case of Class B shares to compensate DWR and other Selected
Broker-Dealers for their opportunity costs in advancing such amounts, which
compensation would be in the form of a carrying charge on any unreimbursed
expenses.
    
 
     In the case of Class B shares, at any given time, the expenses in
distributing Class B shares of the Fund may be in excess of the total of (i) the
payments made by the Fund pursuant to the Plan, and (ii) the proceeds of CDSCs
paid by investors upon the redemption of Class B shares. For example, if $1
million in expenses in distributing Class B shares of the Fund had been incurred
and $750,000 had been received as described in (i) and (ii) above, the excess
expense would amount to $250,000. Because there is no requirement under the Plan
that the Distributor be reimbursed for all distribution expenses or any
requirement that the Plan be continued from year to year, such excess amount
does not constitute a liability of the Fund. Although there is no legal
obligation for the Fund to pay expenses incurred in excess of payments made to
the Distributor under the Plan, and the proceeds of CDSCs paid by investors upon
redemption of shares, if for any reason the Plan is terminated the Trustees will
consider at that time the manner in which to treat such expenses. Any cumulative
expenses incurred, but not yet recovered through distribution fees or CDSCs, may
or may not be recovered through future distribution fees or CDSCs.
 
   
     In the case of Class A and Class C shares, expenses incurred pursuant to
the Plan in any calendar year in excess of 0.25% or 1.0% of the average daily
net assets of Class A or Class C, respectively, will not be reimbursed by the
Fund through payments in any subsequent year, except that expenses representing
a gross sales commission credited to Morgan Stanley Dean Witter Financial
Advisors or other Selected Broker-Dealer representatives at the time of sale may
be reimbursed in the subsequent calendar year. No interest or other financing
charges will be incurred on any Class A or Class C distribution expenses
incurred
    
 
                                       31
<PAGE>   32
 
by the Distributor under the Plan or on any unreimbursed expenses due to the
Distributor pursuant to the Plan.
 
DETERMINATION OF NET ASSET VALUE
 
     The net asset value per share is determined once daily at 4:00 p.m., New
York time (or, on days when the New York Stock Exchange closes prior to 4:00
p.m., at such earlier time), on each day that the New York Stock Exchange is
open by taking the net assets of the Fund, dividing by the number of shares
outstanding and adjusting to the nearest cent. The assets belonging to the Class
A, Class B, Class C and Class D shares will be invested together in a single
portfolio. The net asset value of each Class, however, will be determined
separately by subtracting each Class's accrued expenses and liabilities. The net
asset value per share will not be determined on Good Friday and on such other
federal and non-federal holidays as are observed by the New York Stock Exchange.
 
     In the calculation of the Fund's net asset value: (1) an equity portfolio
security listed or traded on the New York or American Stock Exchange or other
domestic or foreign stock exchange is valued at its latest sale price on that
exchange prior to the time when assets are valued (if there were no sales that
day, the security is valued at the latest bid price); and (2) all other
portfolio securities for which over-the-counter market quotations are readily
available are valued at the latest available bid price prior to the time of
valuation. When market quotations are not readily available, including
circumstances under which it is determined by the Investment Manager or
Sub-Adviser that sale or bid prices are not reflective of a security's market
value, portfolio securities are valued at their fair value as determined in good
faith under procedures established by and under the general supervision of the
Fund's Trustees. For valuation purposes, quotations of foreign portfolio
securities, other assets and liabilities and forward contracts stated in foreign
currency are translated into U.S. dollar equivalents at the prevailing market
rates prior to the close of the New York Stock Exchange. Dividends receivable
are accrued as of the ex-dividend date or as of the time that the relevant
ex-dividend date and amounts become known.
 
     Short-term debt securities with remaining maturities of sixty days or less
to maturity at the time of purchase are valued at amortized cost, unless the
Trustees determine such does not reflect the securities' market value, in which
case these securities will be valued at their fair value as determined by the
Trustees.
 
     Certain securities in the Fund's portfolio may be valued by an outside
pricing service approved by the Fund's Trustees. The pricing service may utilize
a matrix system incorporating security quality, maturity and coupon as the
evaluation model parameters, and/or research evaluations by its staff, including
review of broker-dealer market price quotations, in determining what it believes
is the fair valuation of the portfolio securities valued by such pricing
service.
 
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
   
     Automatic Investment of Dividends and Distributions.  All income dividends
and capital gains distributions are automatically paid in full and fractional
shares of the applicable Class of the Fund (or, if specified by the shareholder,
in shares of any other open-end Morgan Stanley Dean Witter Fund), unless the
shareholder requests that they be paid in cash. Shares so acquired are acquired
at net asset value and are not subject to the imposition of a front-end sales
charge or a CDSC (see "Redemption and Repurchases").
    
 
   
     EasyInvest (SM).  Shareholders may subscribe to EasyInvest, an automatic
purchase plan which provides for any amount from $100 to $5,000 to be
transferred automatically from a checking or savings account or following
redemption of shares of a Morgan Stanley Dean Witter money market fund, on a
semi-monthly, monthly or quarterly basis, to
    
 
                                       32
<PAGE>   33
 
the Transfer Agent for investment in shares of the Fund (see "Purchase of Fund
Shares" and "Redemptions and Repurchases--Involuntary Redemption").
 
     Investment of Dividends or Distributions Received in Cash.  Any shareholder
who receives a cash payment representing a dividend or capital gains
distribution may invest such dividend or distribution in shares of the
applicable Class at the net asset value per share next determined after receipt
by the Transfer Agent, by returning the check or the proceeds to the Transfer
Agent within thirty days after the payment date. Shares so acquired are acquired
at net asset value and are not subject to the imposition of a front-end sales
charge or a CDSC (see "Redemptions and Repurchases").
 
     Systematic Withdrawal Plan.  A systematic withdrawal plan (the "Withdrawal
Plan") is available for shareholders who own or purchase shares of the Fund
having a minimum value of $10,000 based upon the then current net asset value.
The Withdrawal Plan provides for monthly or quarterly (March, June, September
and December) checks in any dollar amount, not less than $25, or in any whole
percentage of the account balance, on an annualized basis. Any applicable CDSC
will be imposed on shares redeemed under the Withdrawal Plan (see "Purchase of
Fund Shares"). Therefore, any shareholder participating in the Withdrawal Plan
will have sufficient shares redeemed from his or her account so that the
proceeds (net of any applicable CDSC) to the shareholder will be the designated
monthly or quarterly amount. Withdrawal plan payments should not be considered
as dividends, yields or income. If periodic withdrawal plan payments
continuously exceed net investment income and net capital gains, the
shareholder's original investment will be correspondingly reduced and ultimately
exhausted. Each withdrawal constitutes a redemption of shares and any gain or
loss realized must be recognized for federal income tax purposes.
 
     Tax-Sheltered Retirement Plans.  Retirement plans are available for use by
corporations, the self-employed, Individual Retirement Accounts and Custodial
Accounts under Section 403(b)(7) of the Internal Revenue Code. Adoption of such
plans should be on advice of legal counsel or tax adviser.
 
   
     Shareholders should contact their Morgan Stanley Dean Witter Financial
Advisor or other Selected Broker-Dealer representative or the Transfer Agent for
further information about any of the above services.
    
 
EXCHANGE PRIVILEGE
 
   
     Shares of each Class may be exchanged for shares of the same Class of any
other Morgan Stanley Dean Witter Multi-Class Fund without the imposition of any
exchange fee. Shares may also be exchanged for shares of the following funds:
Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust, Morgan Stanley Dean
Witter Limited Term Municipal Trust, Morgan Stanley Dean Witter Short-Term Bond
Fund, Morgan Stanley Dean Witter Intermediate Term U.S. Treasury Trust and five
Morgan Stanley Dean Witter funds which are money market funds (the "Exchange
Funds"). Class A shares may also be exchanged for shares of Morgan Stanley Dean
Witter Multi-State Municipal Series Trust and Morgan Stanley Dean Witter Hawaii
Municipal Trust, which are Morgan Stanley Dean Witter Funds sold with a
front-end sales charge ("FSC Funds"). Class B shares may also be exchanged for
shares of Morgan Stanley Dean Witter Global Short-Term Income Fund Inc.,
("Global Short-Term") which is a Morgan Stanley Dean Witter Fund offered with a
CDSC. Exchanges may be made after the shares of the Fund acquired by purchase
(not by exchange or dividend reinvestment) have been held for thirty days. There
is no waiting period for exchanges of shares acquired by exchange or dividend
reinvestment.
    
 
   
     An exchange to another Morgan Stanley Dean Witter Multi-Class Fund, any FSC
Fund, Global Short-Term or any Exchange Fund that is not a money market fund is
on the basis of the next calculated net asset value per share of each fund after
the exchange order is received. When exchanging into a money market fund from
the Fund, shares of
    
 
                                       33
<PAGE>   34
 
   
the Fund are redeemed out of the Fund at their next calculated net asset value
and the proceeds of the redemption are used to purchase shares of the money
market fund at their net asset value determined the following business day.
Subsequent exchanges between any of the money market funds and any of the Morgan
Stanley Dean Witter Multi-Class Funds, FSC Funds, Global Short-Term or any
Exchange Fund that is not a money market fund can be effected on the same basis.
    
 
   
     No CDSC is imposed at the time of any exchange of shares, although any
applicable CDSC will be imposed upon ultimate redemption. During the period of
time the shareholder remains invested in an Exchange Fund (calculated from the
last day of the month in which the Exchange Fund shares were acquired), the
holding period (for the purpose of determining the rate of the CDSC) is frozen.
If those shares are subsequently re-exchanged for shares of a Morgan Stanley
Dean Witter Multi-Class Fund or shares of Global Short-Term, the holding period
previously frozen when the first exchange was made resumes on the last day of
the month in which shares of a Morgan Stanley Dean Witter Multi-Class Fund or
shares of Global Short-Term are reacquired. Thus, the CDSC is based upon the
time (calculated as described above) the shareholder was invested in shares of a
Morgan Stanley Dean Witter Multi-Class Fund or in shares of Global Short-Term
(see "Purchase of Fund Shares"). In the case of exchanges of Class A shares
which are subject to a CDSC, the holding period also includes the time
(calculated as described above) the shareholder was invested in shares of a FSC
Fund. In the case of shares exchanged for shares of an Exchange Fund on or after
April 23, 1990, upon a redemption of shares which results in a CDSC being
imposed, a credit (not to exceed the amount of the CDSC) will be given in an
amount equal to the Exchange Fund 12b-1 distribution fees incurred on or after
that date which are attributable to those shares. (Exchange Fund 12b-1
distribution fees are described in the prospectuses for those funds.) Class B
shares of the Fund acquired in exchange for shares of Global Short-Term or Class
B shares of another Morgan Stanley Dean Witter Multi-Class Fund or shares of a
CDSC Fund having a different CDSC schedule than that of this Fund will be
subject to the higher CDSC schedule, even if such shares are subsequently
re-exchanged for shares of the fund with the lower CDSC schedule.
    
 
   
     Additional Information Regarding Exchanges. Purchases and exchanges should
be made for investment purposes only. A pattern of frequent exchanges may be
deemed by the Investment Manager to be abusive and contrary to the best
interests of the Fund's other shareholders and, at the Investment Manager's
discretion, may be limited by the Fund's refusal to accept additional purchases
and/or exchanges from the investor. Although the Fund does not have any specific
definition of what constitutes a pattern of frequent exchanges, and will
consider all relevant factors in determining whether a particular situation is
abusive and contrary to the best interests of the Fund and its other
shareholders, investors should be aware that the Fund and each of the other
Morgan Stanley Dean Witter Funds may in their discretion limit or otherwise
restrict the number of times this Exchange Privilege may be exercised by any
investor. Any such restriction will be made by the Fund on a prospective basis
only, upon notice to the shareholder not later than ten days following such
shareholder's most recent exchange. Also, the Exchange Privilege may be
terminated or revised at any time by the Fund and/or any of such Morgan Stanley
Dean Witter Funds for which shares of the Fund have been exchanged, upon such
notice as may be required by applicable regulatory agencies. Shareholders
maintaining margin accounts with DWR or another Selected Broker-Dealer are
referred to their Morgan Stanley Dean Witter Financial Advisor or other Selected
Broker-Dealer representative regarding restrictions on exchange of shares of the
Fund pledged in the margin account.
    
 
     The current prospectus for each fund describes its investment objective(s)
and policies, and shareholders should obtain a copy and examine it carefully
before investing. Exchanges are subject to the minimum investment requirement of
each Class of
 
                                       34
<PAGE>   35
 
shares and any other conditions imposed by each fund. In the case of a
shareholder holding a share certificate or certificates, no exchanges may be
made until all applicable share certificates have been received by the Transfer
Agent and deposited in the shareholder's account. In the case of any shareholder
holding a share certificate or certificates, no exchanges may be made until all
applicable share certificates have been received by the Transfer Agent and
deposited in the shareholder's account. An exchange will be treated for federal
income tax purposes the same as a repurchase or redemption of shares, on which
the shareholder may realize a capital gain or loss. However, the ability to
deduct capital losses on an exchange may be limited in situations where there is
an exchange of shares within ninety days after the shares are purchased. The
Exchange Privilege is only available in states where an exchange may legally be
made.
 
   
     If DWR or another Selected Broker-Dealer is the current dealer of record
and its account numbers are part of the account information, shareholders may
initiate an exchange of shares of the Fund for shares of any of the Morgan
Stanley Dean Witter Funds (for which the Exchange Privilege is available)
pursuant to this Exchange Privilege by contacting their Morgan Stanley Dean
Witter Financial Advisor or other Selected Broker-Dealer representative (no
Exchange Privilege Authorization Form is required). Other shareholders (and
those shareholders who are clients of DWR or another Selected Broker-Dealer but
who wish to make exchanges directly by writing or telephoning the Transfer
Agent) must complete and forward to the Transfer Agent an Exchange Privilege
Authorization Form, copies of which may be obtained from the Distributor, to
initiate an exchange. If the Authorization Form is used, exchanges may be made
in writing or by contacting the Transfer Agent at (800) 869-NEWS (toll-free).
    
 
   
     The Fund will employ reasonable procedures to confirm that exchange
instructions communicated over the telephone are genuine. Such procedures may
include requiring various forms of personal identification such as name, mailing
address, social security or other tax identification number and DWR or other
Selected Broker-Dealer account number (if any). Telephone instructions may also
be recorded. If such procedures are not employed, the Fund may be liable for any
losses due to unauthorized or fraudulent instructions. Telephone exchange
instructions will be accepted if received by the Transfer Agent between 9:00
a.m. and 4:00 p.m. New York time, on any day the New York Stock Exchange is
open. Any shareholder wishing to make an exchange who has previously filed an
Exchange Privilege Authorization Form and who is unable to reach the Fund by
telephone should contact his or her Morgan Stanley Dean Witter Financial Advisor
or other Selected Broker-Dealer representative, if appropriate, or make a
written exchange request. Shareholders are advised that during periods of
drastic economic or market changes, it is possible that the telephone exchange
procedures may be difficult to implement, although this has not been the case
with the Morgan Stanley Dean Witter Funds in the past.
    
 
   
     For further information regarding the Exchange Privilege, shareholders
should contact their Morgan Stanley Dean Witter Financial Advisor or other
Selected Broker-Dealer representative or the Transfer Agent.
    
 
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
     Redemption.  Shares of each Class of the Fund can be redeemed for cash at
any time at the net asset value per share next determined less the amount of any
applicable CDSC in the case of Class A, Class B or Class C shares (see "Purchase
of Fund Shares"). If shares are held in a shareholder's account without a share
certificate, a written request for redemption to the Fund's Transfer Agent at
P.O. Box 983, Jersey City, NJ 07303 is required. If certificates are held by the
shareholder, the shares may be redeemed by surrendering the certificates with a
written request for redemption,
 
                                       35
<PAGE>   36
 
along with any additional documentation required by the Transfer Agent.
 
     Repurchase.  DWR and other Selected Broker-Dealers are authorized to
repurchase shares represented by a share certificate which is delivered to any
of their offices. Shares held in a shareholder's account without a share
certificate may also be repurchased by DWR and other Selected Broker-Dealers
upon the telephonic request of the shareholder. The repurchase price is the net
asset value next computed (see "Purchase of Fund Shares") after such repurchase
order is received by DWR or other Selected Broker-Dealer reduced by any
applicable CDSC.
 
     The CDSC, if any, will be the only fee imposed by the Fund or the
Distributor. The offers by DWR and other Selected Broker-Dealers to repurchase
shares may be suspended without notice by them at any time. In that event,
shareholders may redeem their shares through the Fund's Transfer Agent as set
forth above under "Redemption."
 
   
     Payment for Shares Redeemed or Repurchased.  Payment for shares presented
for repurchase or redemption will be made by check within seven days after
receipt by the Transfer Agent of the certificate and/or written request in good
order. Such payment may be postponed or the right of redemption suspended under
unusual circumstances, e.g., when normal trading is not taking place on the New
York Stock Exchange. If the shares to be redeemed have recently been purchased
by check (including a government, certified or bank cashier's check), payment of
the redemption proceeds may be delayed for the minimum time needed to verify
that the check used for investment has been honored (not more than fifteen days
from the time of receipt of the check by the Transfer Agent). Shareholders
maintaining margin accounts with DWR or another Selected Broker-Dealer are
referred to their Morgan Stanley Dean Witter Financial Advisor or other Selected
Broker-Dealer representative regarding restrictions on redemption of shares of
the Fund pledged in the margin account.
    
 
     Reinstatement Privilege.  A shareholder who has had his or her shares
redeemed or repurchased and has not previously exercised this reinstatement
privilege may, within 35 days after the date of the redemption or repurchase,
reinstate any portion or all of the proceeds of such redemption or repurchase in
shares of the Fund in the same Class from which such shares were redeemed or
repurchased, at net asset value next determined after a reinstatement request,
together with the proceeds, is received by the Transfer Agent and receive a pro-
rata credit for any CDSC paid in connection with such redemption or repurchase.
 
   
     Involuntary Redemption.  The Fund reserves the right to redeem, on sixty
days' notice and at net asset value, the shares of any shareholder (other than
shares held in an Individual Retirement Account or custodial account under
Section 403(b)(7) of the Code) whose shares due to redemptions by the
shareholder have a value of less than $100 or such lesser amount as may be fixed
by the Trustees or, in the case of an account opened through EasyInvest, if
after twelve months the shareholder has invested less than $1,000 in the
account. However, before the Fund redeems such shares and sends the proceeds to
the shareholder, it will notify the shareholder that the value of the shares is
less than the applicable amount and allow the shareholder sixty days to make an
additional investment in an amount which will increase the value of the account
to at least the applicable amount before the redemption is processed. No CDSC
will be imposed on any involuntary redemption.
    
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
     Dividends and Distributions.  The Fund declares dividends separately for
each Class of shares and intends to declare and pay dividends and to distribute
substantially all of the Fund's net investment income and net realized
short-term and long-term capital gains, if any, at least once each year. The
Fund may, however, determine either to
 
                                       36
<PAGE>   37
 
distribute or to retain all or part of any long-term capital gains in any year
for reinvestment.
 
     All dividends and any capital gains distributions will be paid in
additional shares of the same Class and automatically credited to the
shareholder's account without issuance of a share certificate unless the
shareholder requests in writing that all dividends and/or distributions be paid
in cash. Shares acquired by dividend and distribution reinvestments will not be
subject to any front-end sales charge or CDSC. Class B shares acquired through
dividend and distribution reinvestments will become eligible for conversion to
Class A shares on a pro rata basis. Distributions paid on Class A and Class D
shares will be higher than for Class B and Class C shares because distribution
fees paid by Class B and Class C shares are higher. (See "Shareholder
Services--Automatic Investment of Dividends and Distributions.")
 
     Taxes.  Because the Fund intends to continue to distribute all of its net
investment income and any net short-term capital gains to shareholders and
otherwise qualify as a regulated investment company under Subchapter M of the
Code, it is not expected that the Fund will be required to pay any federal
income tax on such income and capital gains.
 
     Gains or losses on the Fund's transactions in certain listed options on
securities and on futures and options on futures generally are treated as 60%
long-term gain or loss and 40% short-term gain or loss. When the Fund engages in
options and futures transactions, various tax regulations applicable to the Fund
may have the effect of causing the Fund to recognize a gain or loss for tax
purposes before that gain or loss is realized, or to defer recognition of a
realized loss for tax purposes. Recognition, for tax purposes, of an unrealized
loss may result in a lesser amount of the Fund's realized net gains being
available for distribution.
 
     Shareholders will normally have to pay federal income taxes, and any
applicable state and/or local income taxes, on the dividends and distributions
they receive from the Fund. Such dividends and distributions, to the extent that
they are derived from net investment income and net short-term capital gains,
are taxable to the shareholder as ordinary dividend income regardless of whether
the shareholder receives such distributions in additional shares or in cash. Any
dividends declared in the last quarter of any calendar year which are paid in
the following calendar year prior to February 1, will be deemed, for tax
purposes, to have been received by the shareholder in the calendar prior year.
 
     Distributions of net long-term capital gains, if any, are taxable to
shareholders as long-term capital gains regardless of how long a shareholder has
held the Fund's shares and regardless of whether the distribution is received in
additional shares or in cash. It is anticipated that only a small portion, if
any, of the Fund's distributions will be eligible for the dividends received
deduction to corporate shareholders.
 
     The Fund may at times make payments from sources other than income or net
capital gains. Payments from such sources will, in effect, represent a return of
a portion of each shareholder's investment. All, or a portion, of such payments
will not be taxable to shareholders.
 
     After the end of the year, shareholders will receive full information on
their dividends and capital gains distributions for tax purposes. Shareholders
will also be notified of their proportionate share of long-term capital gains
distributions that are eligible for a reduced rate of tax under the Taxpayer
Relief Act of 1997.
 
     To avoid being subject to a 31% federal backup withholding tax on taxable
dividends, capital gains distributions and the proceeds of redemptions and
repurchases, shareholders' taxpayer identification numbers must be furnished and
certified as to their accuracy.
 
     Dividends, interest and gains received by the Fund may give rise to
withholding and other taxes imposed by foreign countries. If it qualifies for
and has made the appropriate election with the Internal Revenue Service, the
Fund will report annually to its shareholders the amount per share of such
 
                                       37
<PAGE>   38
 
taxes, to enable shareholders to deduct their pro rata portion of such taxes
from their taxable income or claim United States foreign tax credits with
respect to such taxes. In the absence of such an election, the Fund would deduct
foreign tax in computing the amount of its distributable income.
 
     The foregoing discussion relates solely to the federal income tax
consequences of an investment in the Fund. Distributions may also be subject to
state and local taxes; therefore, each shareholder is advised to consult his or
her own tax adviser.
 
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
     From time to time the Fund may quote its "total return" in advertisements
and sales literature. These figures are computed separately for Class A, Class
B, Class C and Class D shares. The total return of the Fund is based on
historical earnings and is not intended to indicate future performance. The
"average annual total return" of the Fund refers to a figure reflecting the
average annualized percentage increase (or decrease) in the value of an initial
investment in a Class of the Fund of $1,000 over a period of one year and five
years, as well as over the life of the Fund. Average annual total return
reflects all income earned by the Fund, any appreciation or depreciation of the
Fund's assets, all expenses incurred by the applicable Class and all sales
charges which would be incurred by shareholders, for the stated periods. It also
assumes reinvestment of all dividends and distributions paid by the Fund.
 
     In addition to the foregoing, the Fund may advertise its total return for
each Class over different periods of time by means of aggregate, average, and
year-by-year or other types of total return figures. The Fund may also advertise
the growth of hypothetical investments of $10,000, $50,000 and $100,000 in each
Class of shares of the Fund. Such calculations may or may not reflect the
deduction of any sales charge which, if reflected, would reduce the performance
quoted. The Fund from time to time may also advertise its performance relative
to certain performance rankings and indexes compiled by independent
organizations (such as mutual fund performance rankings of Lipper Analytical
Services, Inc.).
 
ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------
 
     Voting Rights.  All shares of beneficial interest of the Fund are of $0.01
par value and are equal as to earnings, assets and voting privileges except that
each Class will have exclusive voting privileges with respect to matters
relating to distribution expenses borne solely by such Class or any other matter
in which the interests of one Class differ from the interests of any other
Class. In addition, Class B shareholders will have the right to vote on any
proposed material increase in Class A's expenses, if such proposal is submitted
separately to Class A shareholders. Also, as discussed herein, Class A, Class B
and Class C bear the expenses related to the distribution of their respective
shares.
 
     The Fund is not required to hold Annual Meetings of Shareholders and in
ordinary circumstances the Fund does not intend to hold such meetings. The
Trustees may call Special Meetings of Shareholders for action by shareholder
vote as may be required by the Act or the Declaration of Trust. Under certain
circumstances, the Trustees may be removed by action of the Trustees or by the
Shareholders.
 
     Under Massachusetts law, shareholders of a business trust may, under
certain limited circumstances, be held personally liable as partners for the
obligations of the Fund. However, the Declaration of Trust contains an express
disclaimer of shareholder liability for acts or obligations of the Fund,
requires that notice of such Fund obligations include such disclaimer, and
provides for indemnification out of the Fund's property for any share-
 
                                       38
<PAGE>   39
 
holder held personally liable for the obligations of the Fund. Thus, the risk of
a shareholder incurring financial loss on account of shareholder liability is
limited to circumstances in which the Fund itself would be unable to meet its
obligations. Given the above limitations on shareholder personal liability, and
the nature of the Fund's assets and operations, the possibility of the Fund
being unable to meet its obligations is remote and thus, in the opinion of
Massachusetts counsel to the Fund, the risk to Fund shareholders of personal
liability is remote.
 
   
     Code of Ethics.  Trustees, officers and employees of InterCapital, Dean
Witter Services Company Inc. and the Distributor are subject to a strict Code of
Ethics adopted by those companies. The Code of Ethics is intended to ensure that
the interests of shareholders and other clients are placed ahead of any personal
interest, that no undue personal benefit is obtained from a person's employment
activities and that actual and potential conflicts of interest are avoided. To
achieve these goals and comply with regulatory requirements, the Code of Ethics
requires, among other things, that personal securities transactions by employees
of the companies be subject to an advance clearance process to monitor that no
Morgan Stanley Dean Witter Fund is engaged at the same time in a purchase or
sale of the same security. The Code of Ethics bans the purchase of securities in
an initial public offering, and also prohibits engaging in futures and options
transactions and profiting on short-term trading (that is, a purchase within
sixty days of a sale or a sale within sixty days of a purchase) of a security.
In addition, investment personnel may not purchase or sell a security for their
personal account within thirty days before or after any transaction in any
Morgan Stanley Dean Witter Fund managed by them. Any violations of the Code of
Ethics are subject to sanctions, including reprimand, demotion or suspension or
termination of employment. The Code of Ethics comports with regulatory
requirements and the recommendations in the 1994 report by the Investment
Company Institute Advisory Group on Personal Investing.
    
 
     The Fund's Sub-Adviser also has a Code of Ethics which complies with
regulatory requirements and, insofar as it relates to persons associated with
the Fund, the 1994 report by the Investment Company Institute Advisory Group on
Personal Investing.
 
     Master/Feeder Conversion.  The Fund reserves the right to seek to achieve
its investment objective by investing all of its investable assets in a
diversified, open-end management investment company having the same investment
objective and policies and substantially the same investment restrictions as
those applicable to the Fund.
 
     Shareholder Inquiries.  All inquiries regarding the Fund should be directed
to the Fund at the telephone numbers or address set forth on the front cover of
this Prospectus.
 
     The Investment Manager provided the initial capital for the Fund by
purchasing 2,500 shares each of Class A, Class B, Class C and Class D of the
Fund for $25,000, respectively, on April 30, 1998. As of the date of this
Prospectus, the Investment Manager owned 100% of the outstanding shares of the
Fund. The Investment Manager may be deemed to control the Fund until such time
as it owns less than 25% of the outstanding shares of the Fund.
 
                                       39
<PAGE>   40
 
Morgan Stanley
Dean Witter Equity Fund
Two World Trade Center
New York, New York 10048
 
TRUSTEES
 
Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
Wayne E. Hedien
Dr. Manuel H. Johnson
Michael E. Nugent
Philip J. Purcell
John L. Schroeder
 
OFFICERS
 
Charles A. Fiumefreddo
Chairman and Chief Executive Officer
 
Barry Fink
Vice President, Secretary and General Counsel
 
Thomas F. Caloia
Treasurer
 
CUSTODIAN
 
The Bank of New York
90 Washington Street
New York, New York 10286
 
TRANSFER AGENT AND DIVIDEND DISBURSING AGENT
 
Morgan Stanley Dean Witter Trust FSB
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
 
INDEPENDENT ACCOUNTANTS
 
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036
 
INVESTMENT MANAGER
 
Dean Witter InterCapital Inc.
 
SUB-ADVISER
 
Miller Anderson & Sherrerd, LLP
 
   MORGAN STANLEY
   DEAN WITTER
   EQUITY FUND
 
   
                                                                            LOGO
    
   
                PROSPECTUS -- JUNE 2, 1998
    
<PAGE>   41
 
   
<TABLE>
<S>                                                     <C>
STATEMENT OF ADDITIONAL INFORMATION                     MORGAN STANLEY
                                                        DEAN WITTER
JUNE 2, 1998                                            EQUITY FUND
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
     Morgan Stanley Dean Witter Equity Fund (the "Fund") is an open-end,
diversified management investment company, whose investment objective is total
return. The Fund seeks to achieve its investment objective by investing
primarily in a diversified portfolio of equity securities.
 
   
     A Prospectus for the Fund dated June 2, 1998, which provides the basic
information you should know before investing in the Fund, may be obtained
without charge from the Fund at the address or telephone numbers listed below or
from the Fund's Distributor, Dean Witter Distributors Inc., or from Dean Witter
Reynolds Inc. at any of its branch offices. This Statement of Additional
Information is not a Prospectus. It contains information in addition to and more
detailed than that set forth in the Prospectus. It is intended to provide
additional information regarding the activities and operations of the Fund, and
should be read in conjunction with the Prospectus.
    
 
Morgan Stanley Dean Witter Equity Fund
Two World Trade Center
New York, New York 10048
(212) 392-2550 or
(800) 869-NEWS (toll-free)
<PAGE>   42
 
TABLE OF CONTENTS
   
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                           <C>
The Fund and its Management.................................      3
Trustees and Officers.......................................      7
Investment Practices and Policies...........................     13
Investment Restrictions.....................................     28
Portfolio Transactions and Brokerage........................     29
Underwriting................................................     30
The Distributor.............................................     31
Determination of Net Asset Value............................     34
Purchase of Fund Shares.....................................     35
Shareholder Services........................................     37
Redemptions and Repurchases.................................     42
Dividends, Distributions and Taxes..........................     43
Performance Information.....................................     45
Description of Shares of the Fund...........................     45
Custodian and Transfer Agent................................     46
Independent Accountants.....................................     46
Reports to Shareholders.....................................     46
Legal Counsel...............................................     47
Experts.....................................................     47
Registration Statement......................................     47
Statement of Assets and Liabilities at May 12, 1998.........     48
Report of Independent Accountants...........................     50
Appendix -- Ratings of Investments..........................     51
</TABLE>
    
 
                                        2
<PAGE>   43
 
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
THE FUND
 
     The Fund is a Trust of the type commonly known as a "Massachusetts business
trust" and was organized under the laws of the Commonwealth of Massachusetts on
April 6, 1998.
 
THE INVESTMENT MANAGER
 
     Dean Witter InterCapital Inc. (the "Investment Manager" or "InterCapital"),
a Delaware corporation, whose address is Two World Trade Center, New York, New
York 10048, is the Fund's Investment Manager. InterCapital is a wholly-owned
subsidiary of Morgan Stanley Dean Witter & Co. ("MSDW"), a Delaware corporation.
In an internal reorganization which took place in January, 1993, InterCapital
assumed the investment advisory, administrative and management activities
previously performed by the InterCapital Division of Dean Witter Reynolds Inc.
("DWR"), a broker-dealer affiliate of InterCapital. The daily management of the
Fund is conducted by or under the direction of officers of the Fund and of the
Investment Manager and Sub-Adviser, subject to review by the Fund's Board of
Trustees. Information as to these Trustees and Officers is contained under the
caption "Trustees and Officers."
 
   
     The Investment Manager is also the investment manager or investment adviser
of the following investment companies:
    
 
   
OPEN-END FUNDS
    
 
   
<TABLE>
<C>  <S>
  1  Active Assets California Tax-Free Trust
  2  Active Assets Government Securities Trust
  3  Active Assets Money Trust
  4  Active Assets Tax-Free Trust
  5  Morgan Stanley Dean Witter American Value Fund
  6  Morgan Stanley Dean Witter Balanced Growth Fund
  7  Morgan Stanley Dean Witter Balanced Income Fund
  8  Morgan Stanley Dean Witter California Tax-Free Daily Income
     Trust
  9  Morgan Stanley Dean Witter California Tax-Free Income Fund
 10  Morgan Stanley Dean Witter Capital Appreciation Fund
 11  Morgan Stanley Dean Witter Capital Growth Securities
 12  Morgan Stanley Dean Witter Competitive Edge Fund, "Best
     Ideas" Portfolio
 13  Morgan Stanley Dean Witter Convertible Securities Trust
 14  Morgan Stanley Dean Witter Developing Growth Securities
     Trust
 15  Morgan Stanley Dean Witter Diversified Income Trust
 16  Morgan Stanley Dean Witter Dividend Growth Securities Inc.
 17  Morgan Stanley Dean Witter Equity Fund
 18  Morgan Stanley Dean Witter European Growth Fund Inc.
 19  Morgan Stanley Dean Witter Federal Securities Trust
 20  Morgan Stanley Dean Witter Financial Services Trust
 21  Morgan Stanley Dean Witter Fund of Funds
 22  Dean Witter Global Asset Allocation Fund
 23  Morgan Stanley Dean Witter Global Dividend Growth Securities
 24  Morgan Stanley Dean Witter Global Short-Term Income Fund
     Inc.
 25  Morgan Stanley Dean Witter Global Utilities Fund
 26  Morgan Stanley Dean Witter Growth Fund
 27  Morgan Stanley Dean Witter Hawaii Municipal Trust
 28  Morgan Stanley Dean Witter Health Sciences Trust
 29  Morgan Stanley Dean Witter High Yield Securities Inc.
 30  Morgan Stanley Dean Witter Income Builder Fund
 31  Morgan Stanley Dean Witter Information Fund
</TABLE>
    
 
                                        3
<PAGE>   44
   
<TABLE>
<C>  <S>
 32  Morgan Stanley Dean Witter Intermediate Income Securities
 33  Morgan Stanley Dean Witter Intermediate Term U.S. Treasury
     Trust
 34  Morgan Stanley Dean Witter International SmallCap Fund
 35  Morgan Stanley Dean Witter Japan Fund
 36  Morgan Stanley Dean Witter Limited Term Municipal Trust
 37  Morgan Stanley Dean Witter Liquid Asset Fund Inc.
 38  Morgan Stanley Dean Witter Market Leader Trust
 39  Morgan Stanley Dean Witter Mid-Cap Dividend Growth
     Securities
 40  Morgan Stanley Dean Witter Mid-Cap Growth Fund
 41  Morgan Stanley Dean Witter Multi-State Municipal Series
     Trust
 42  Morgan Stanley Dean Witter Natural Resource Development
     Securities Inc.
 43  Morgan Stanley Dean Witter New York Municipal Money Market
     Trust
 44  Morgan Stanley Dean Witter New York Tax-Free Income Fund
 45  Morgan Stanley Dean Witter Pacific Growth Fund Inc.
 46  Morgan Stanley Dean Witter Precious Metals and Minerals
     Trust
 47  Dean Witter Retirement Series
 48  Morgan Stanley Dean Witter Select Dimensions Investment
     Series
 49  Morgan Stanley Dean Witter Select Municipal Reinvestment
     Fund
 50  Morgan Stanley Dean Witter Short-Term Bond Fund
 51  Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust
 52  Morgan Stanley Dean Witter Special Value Fund
 53  Morgan Stanley Dean Witter S&P 500 Index Fund
 54  Morgan Stanley Dean Witter Strategist Fund
 55  Morgan Stanley Dean Witter Tax-Exempt Securities Trust
 56  Morgan Stanley Dean Witter Tax-Free Daily Income Trust
 57  Morgan Stanley Dean Witter U.S. Government Money Market
     Trust
 58  Morgan Stanley Dean Witter U.S. Government Securities Trust
 59  Morgan Stanley Dean Witter Utilities Fund
 60  Morgan Stanley Dean Witter Value-Added Market Series
 61  Morgan Stanley Dean Witter Variable Investment Series
 62  Morgan Stanley Dean Witter World Wide Income Trust
</TABLE>
    
 
   
CLOSED-END FUNDS
    
 
   
<TABLE>
<C>  <S>
  1  InterCapital California Insured Municipal Income Trust
  2  InterCapital California Quality Municipal Securities
  3  Dean Witter Government Income Trust
  4  High Income Advantage Trust
  5  High Income Advantage Trust II
  6  High Income Advantage Trust III
  7  InterCapital Income Securities Inc.
  8  InterCapital Insured California Municipal Securities
  9  InterCapital Insured Municipal Bond Trust
 10  InterCapital Insured Municipal Income Trust
 11  InterCapital Insured Municipal Securities
 12  InterCapital Insured Municipal Trust
 13  Municipal Income Opportunities Trust
 14  Municipal Income Opportunities Trust II
 15  Municipal Income Opportunities Trust III
 16  Municipal Income Trust
 17  Municipal Income Trust II
 18  Municipal Income Trust III
 19  Municipal Premium Income Trust
 20  InterCapital New York Quality Municipal Securities
</TABLE>
    
 
                                        4
<PAGE>   45
   
<TABLE>
<C>  <S>
 21  Morgan Stanley Dean Witter Prime Income Trust
 22  InterCapital Quality Municipal Income Trust
 23  InterCapital Quality Municipal Investment Trust
 24  InterCapital Quality Municipal Securities
</TABLE>
    
 
   
     In addition, Dean Witter Services Company Inc. ("DWSC"), a wholly-owned
subsidiary of InterCapital, serves as manager for the following investment
companies for which TCW Funds Management, Inc. is the investment advisor (the
"TCW/DW Funds"):
    
 
   
OPEN-END FUNDS
    
 
   
<TABLE>
<C>  <S>
  1  TCW/DW Emerging Markets Opportunities Trust
  2  TCW/DW Global Telecom Trust
  3  TCW/DW Income and Growth Fund
  4  TCW/DW Latin American Growth Fund
  5  TCW/DW Mid-Cap Equity Trust
  6  TCW/DW North American Government Income Trust
  7  TCW/DW Small Cap Growth Fund
  8  TCW/DW Total Return Trust
</TABLE>
    
 
   
CLOSED-END FUNDS
    
 
   
<TABLE>
<C>  <S>
  1  TCW/DW Term Trust 2000
  2  TCW/DW Term Trust 2002
  3  TCW/DW Term Trust 2003
</TABLE>
    
 
   
     InterCapital also serves as: (i) administrator of The BlackRock Strategic
Term Trust Inc., a closed-end investment company; (ii) sub-administrator of
Templeton Global Governments Income Trust, a closed-end investment company; and
(iii) investment advisor of Offshore Dividend Growth Fund and Offshore Money
Market Fund, mutual funds established under the laws of the Cayman Islands and
available only to investors who are participants in DWR's International Active
Assets Account program and are neither citizens nor residents of the United
States.
    
 
   
     Pursuant to an Investment Management Agreement (the "Management Agreement")
with the Investment Manager, the Fund has retained the investment Manager to
supervise the investment of the Fund's assets. The Investment Manager, through
consultation with Miller Anderson & Sherrerd, LLP (the "Sub-Adviser"), and
through its own portfolio management staff, obtains and evaluates such
information and advice relating to the economy, securities markets, and specific
securities as it considers necessary or useful to continuously oversee the
management of the assets of the Fund in a manner consistent with its investment
objective.
    
 
     Under the terms of the Management Agreement, the Investment Manager also
maintains certain of the Fund's books and records and furnishes, at its own
expense, such office space, facilities, equipment, clerical help and bookkeeping
and certain legal services as the Fund may reasonably require in the conduct of
its business, including the preparation of prospectuses, statements of
additional information, proxy statements and reports required to be filed with
federal and state securities commissions (except insofar as the participation or
assistance of independent accountants and attorneys is, in the opinion of the
Investment Manager, necessary or desirable). In addition, the Investment Manager
pays the salaries of all personnel, including officers of the Fund, who are
employees of the Investment Manager. The Investment Manager also bears the cost
of telephone service, heat, light, power and other utilities provided to the
Fund.
 
     Expenses not expressly assumed by the Investment Manager under the
Management Agreement, by the Sub-Adviser pursuant to the Sub-Advisory Agreement
(see below), or by the Distributor of the Fund's shares, Dean Witter
Distributors Inc. ("Distributors" or the "Distributor") (see "The Distributor")
will be paid by the Fund. These expenses will be allocated among the four
classes of shares of the Fund (each, a "Class") pro rata based on the net assets
of the Fund attributable to each Class, except as
 
                                        5
<PAGE>   46
 
   
described below. Such expenses include, but are not limited to: expenses of the
Plan of Distribution pursuant to Rule 12b-1 (the "12b-1 fee") (see "The
Distributor"), charges and expenses of any registrar, custodian, stock transfer
and dividend disbursing agent; brokerage commissions; taxes; engraving and
printing of share certificates; registration costs of the Fund and its shares
under federal and state securities laws; the cost and expense of printing,
including typesetting, and distributing Prospectuses and Statements of
Additional Information of the Fund and supplements thereto to the Fund's
shareholders; all expenses of shareholders' and trustees' meetings and of
preparing, printing and mailing of proxy statements and reports to shareholders;
fees and travel expenses of trustees or members of any advisory board or
committee who are not employees of the Investment Manager or Sub-Adviser or any
corporate affiliate of the Investment Manager or Sub-Adviser; all expenses
incident to any dividend, withdrawal or redemption options; charges and expenses
of any outside service used for pricing of the Fund's shares; fees and expenses
of the Fund's legal counsel, including counsel to the trustees who are not
interested persons of the Fund or of the Investment Manager or Sub-Adviser (not
including compensation or expenses of attorneys who are employees of the
Investment Manager) and independent accountants; membership dues of industry
associations; interest on Fund borrowings; postage; insurance premiums on
property or personnel (including officers and directors) of the Fund which inure
to its benefit; extraordinary expenses (including, but not limited to, legal
claims and liabilities and litigation costs and any indemnification relating
thereto); and all other costs of the Fund's operation. The 12b-1 fees relating
to a particular Class will be allocated directly to that Class. In addition,
other expenses associated with a particular Class (except advisory or custodial
fees) may be allocated directly to that Class, provided that such expenses are
reasonably identified as specifically attributable to that Class and the direct
allocation to that Class is approved by the Trustees.
    
 
     The Investment Manager has agreed to assume all Fund operating expenses
(except for brokerage and 12b-1 fees) and waive the compensation provided for in
its investment management agreement until such time as the Fund has $50 million
of net assets or six months from the date of commencement of the Fund's
operations, whichever occurs first.
 
     The Investment Manager will absorb the organizational expenses of the Fund
incurred prior to the offering of its shares which is estimated to be
approximately $17,000. The offering costs of the Fund will be deferred and
amortized on the straight line method over a period of benefit of approximately
one year or less from the date of commencement of the Fund's operations.
 
     As full compensation for the services and facilities furnished to the Fund
and expenses of the Fund assumed by the Investment Manager, the Fund pays the
Investment Manager monthly compensation calculated daily by applying the annual
rate of 0.85% to the Fund's daily net assets.
 
     The Management Agreement provides that in the absence of willful
misfeasance, bad faith, gross negligence or reckless disregard of its
obligations thereunder, the Investment Manager is not liable to the Fund or any
of its investors for any act or omission by the Investment Manager or for any
losses sustained by the Fund or its investors. The Management Agreement in no
way restricts the Investment Manager from acting as investment manager or
adviser to others.
 
     Pursuant to a Sub-Advisory Agreement between the Investment Manager and
Sub-Adviser, the Sub-Adviser has been retained, subject to the overall
supervision of the Investment Manager and the Trustees of the Fund, to
continuously furnish investment advice concerning individual security
selections, asset allocations and overall economic trends and to manage the
Fund's portfolio subject to the supervision of the Investment Manager.
 
     Miller Anderson & Sherrerd, LLP, is a Pennsylvania limited liability
partnership founded in 1969, wholly owned by indirect subsidiaries of Morgan
Stanley Dean Witter & Co., and is located at One Tower Bridge, West
Conshohocken, PA 19428. The Sub-Adviser provides investment services to employee
benefit plans, endowment funds, foundations and other institutional investors
and as of March 31, 1998 had in excess of $67 billion in assets under
management.
 
     Both the Investment Manager and the Sub-Adviser have authorized any of
their directors, officers and employees who have been elected as Trustees or
officers of the Fund to serve in the capacities in
 
                                        6
<PAGE>   47
 
which they have been elected. Services furnished by the Investment Manager and
the Sub-Adviser may be furnished by directors, officers and employees of the
Investment Manager and the Sub-Adviser. In connection with the services rendered
by the Sub-Adviser, the Sub-Adviser bears the following expenses: (a) the
salaries and expenses of its personnel; and (b) all expenses incurred by it in
connection with performing the services provided by it as Sub-Adviser, as
described above.
 
     As full compensation for the services and facilities furnished to the Fund
and the Investment Manager and expenses of the Fund and the Investment Manager
assumed by the Sub-Adviser, the Investment Manager pays the Sub-Adviser monthly
compensation equal to 40% of the Investment Manager's monthly compensation
payable under the Management Agreement.
 
     The Management Agreement and the Sub-Advisory Agreement (the "Agreements")
were initially approved by the Board of Trustees on April 30, 1998 and by the
sole shareholder of the Fund on April 30, 1998. The Agreements may be terminated
at any time, without penalty, on thirty days' notice by the Board of Trustees of
the Fund, by the holders of a majority, as defined in the Investment Company Act
of 1940 (the "Act"), of the outstanding shares of the Fund, or by the Investment
Manager and/or Sub-Adviser. The Agreements will automatically terminate in the
event of their assignment (as defined in the Act).
 
     Under their terms, the Agreements have an initial term ending April 30,
2000, and they will continue in effect from year to year thereafter, provided
continuance of the Agreements is approved at least annually by the vote of the
holders of a majority, as defined in the Act, of the outstanding shares of the
Fund, or by the Board of Trustees of the Fund; provided that in either event
such continuance is approved annually by the vote of a majority of the Trustees
of the Fund who are not parties to the Agreements or "interested persons" (as
defined in the Act) of any such party (the "Independent Trustees"), which votes
must be cast in person at a meeting called for the purpose of voting on such
approval.
 
     The Fund has acknowledged that the name "Morgan Stanley Dean Witter" is a
property right of MSDW. The Fund has agreed that MSDW, or any corporate
affiliate of MSDW, may use, or at any time permit others to use, the name
"Morgan Stanley Dean Witter." The Fund has also agreed that in the event the
investment management contract between InterCapital and the Fund is terminated,
or if the affiliation between InterCapital and its parent company is terminated,
the Fund will eliminate the name "Morgan Stanley Dean Witter" from its name if
MSDW, or any corporate affiliate of MSDW, shall so request.
TRUSTEES AND OFFICERS
- --------------------------------------------------------------------------------
 
   
     The Trustees and Executive Officers of the Fund, their principal business
occupations during the last five years and their affiliations, if any, with
InterCapital and with the 86 Morgan Stanley Dean Witter Funds and the 11 TCW/DW
Funds are shown below.
    
 
   
<TABLE>
<CAPTION>
         NAME, AGE, POSITION WITH FUND AND ADDRESS                 PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- -----------------------------------------------------------    ---------------------------------------------------
<S>                                                            <C>
Michael Bozic (57)                                             Chairman and Chief Executive Officer of Levitz
Trustee                                                        Furniture Corporation (since November, 1995);
c/o Levitz Furniture Corporation                               Director or Trustee of the Morgan Stanley Dean
7887 N. Federal Highway                                        Witter Funds; formerly President and Chief
Boca Raton, Florida                                            Executive Officer of Hills Department Stores (May,
                                                               1991-July, 1995); formerly variously Chairman,
                                                               Chief Executive Officer, President and Chief
                                                               Operating Officer (1987-1991) of the Sears
                                                               Merchandise Group of Sears, Roebuck and Co.;
                                                               Director of Eaglemark Financial Services, Inc. and
                                                               Weirton Steel Corporation.
</TABLE>
    
 
                                        7
<PAGE>   48
 
   
<TABLE>
<CAPTION>
         NAME, AGE, POSITION WITH FUND AND ADDRESS                 PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- -----------------------------------------------------------    ---------------------------------------------------
<S>                                                            <C>
Charles A. Fiumefreddo* (65)                                   Chairman, Director or Trustee, President and Chief
Chairman of the Board, President                               Executive Officer of the Morgan Stanley Dean Witter
Chief Executive Officer and Trustee                            Funds; Chairman, Chief Executive Officer and
Two World Trade Center                                         Trustee of the TCW/DW Funds; formerly Chairman,
New York, New York                                             Chief Executive Officer and Director of
                                                               InterCapital, Dean Witter Distributors Inc.
                                                               ("Distributors") and Dean Witter Services Company
                                                               Inc. ("DWSC"), Executive Vice President and
                                                               Director of Dean Witter Reynolds Inc. ("DWR"),
                                                               Chairman and Director of Morgan Stanley Dean Witter
                                                               Trust FSB ("MSDW Trust"), and Director and/or of-
                                                               ficer of various MSDW subsidiaries (until May,
                                                               1998).
Edwin J. Garn (65)                                             Director or Trustee of the Morgan Stanley Dean
Trustee                                                        Witter Funds; formerly United States Senator
c/o Huntsman Corporation                                       (R-Utah) (1974-1992) and Chairman, Senate Banking
500 Huntsman Way                                               Committee (1980-1986); formerly Mayor of Salt Lake
Salt Lake City, Utah                                           City, Utah (1972-1974); formerly Astronaut, Space
                                                               Shuttle Discovery (April 12-19, 1985); Vice
                                                               Chairman, Huntsman Corporation; Director of
                                                               Franklin Covey (time management systems) and John
                                                               Alden Financial Corp. (health insurance); United
                                                               Space Alliance (joint venture between Lockheed
                                                               Martin and Boeing Company) and Nuskin Asia
                                                               (multilevel marketing); member of the board of
                                                               various civic and charitable organizations.
John R. Haire (73)                                             Chairman of the Audit Committee and Director or
Trustee                                                        Trustee of the Morgan Stanley Dean Witter Funds;
Two World Trade Center                                         Chairman of the Audit Committee and Trustee of the
New York, New York                                             TCW/DW Funds; formerly Chairman of the Independent
                                                               Directors or Trustees of the Morgan Stanley Dean
                                                               Witter Funds and the TCW/DW Funds (until June,
                                                               1998); formerly President, Council for Aid to
                                                               Education (1978-1989) and Chairman and Chief
                                                               Executive Officer of Anchor Corporation, an
                                                               Investment Adviser (1964-1978).
</TABLE>
    
 
                                        8
<PAGE>   49
 
   
<TABLE>
<CAPTION>
         NAME, AGE, POSITION WITH FUND AND ADDRESS                 PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- -----------------------------------------------------------    ---------------------------------------------------
<S>                                                            <C>
Wayne E. Hedien (64)                                           Retired, Director or Trustee of the Morgan Stanley
Trustee                                                        Dean Witter Funds; Director of The PMI Group, Inc.
c/o Gordon Altman Butowsky                                     (private mortgage insurance); Trustee and Vice
 Weitzen Shalov & Wein                                         Chairman of The Field Museum of Natural History;
Counsel to the Independent Trustees                            formerly associated with the Allstate Companies
114 West 47th Street                                           (1966-1994), most recently as Chairman of The
New York, New York                                             Allstate Corporation (March, 1993-December, 1994)
                                                               and Chairman and Chief Executive Officer of its
                                                               wholly-owned subsidiary, Allstate Insurance Company
                                                               (July, 1989-December, 1994); director of various
                                                               other business and charitable organizations.
Dr. Manuel H. Johnson (49)                                     Senior Partner, Johnson Smick International, Inc.,
Trustee                                                        a consulting firm; Co-Chairman and a founder of the
c/o Johnson Smick International, Inc.                          Group of Seven Council (G7C), an international
1133 Connecticut Avenue, N.W.                                  economic commission; Director or Trustee of the
Washington, DC                                                 Morgan Stanley Dean Witter Funds, Trustee of the
                                                               TCW/DW Funds; Director of Greenwich Capital
                                                               Markets, Inc. (broker-dealer) and NVR Inc. (home
                                                               construction); Director of NASDAQ (since June,
                                                               1995); Chairman and Trustee of the Financial Ac-
                                                               counting Foundation (oversight organization for the
                                                               Financial Accounting Standards Board); formerly
                                                               Vice Chairman of the Board of Governors of the
                                                               Federal Reserve System (1986-1990) and Assistant
                                                               Secretary of the U.S. Treasury (1982-1986).
Michael E. Nugent (62)                                         General Partner, Triumph Capital, L.P., a private
Trustee                                                        investment partnership; Director or Trustee of the
c/o Triumph Capital, L.P.                                      Morgan Stanley Dean Witter Funds; Trustee of the
237 Park Avenue                                                TCW/DW Funds; formerly Vice President, Bankers
New York, New York                                             Trust Company and BT Capital Corporation
                                                               (1984-1988); director of various business
                                                               organizations.
Philip J. Purcell* (54)                                        Chairman of the Board of Directors and Chief
Trustee                                                        Executive Officer of MSDW, DWR and Novus Credit
1585 Broadway                                                  Services Inc.; Director of InterCapital, DWSC and
New York, New York                                             Distributors; Director or Trustee of the Morgan
                                                               Stanley Dean Witter Funds; Director and/or officer
                                                               of various MSDW subsidiaries.
John L. Schroeder (67)                                         Retired; Director or Trustee of the Morgan Stanley
Trustee                                                        Dean Witter Funds; Trustee of the TCW/DW Funds;
c/o Gordon Altman Butowsky Weitzen Shalov &   Wein             Director of Citizens Utilities Company; formerly
Counsel to the Independent Trustees                            Executive Vice President and Chief Investment
114 West 47th Street                                           Officer of the Home Insurance Company (August,
New York, New York                                             1991-September, 1995).
</TABLE>
    
 
                                        9
<PAGE>   50
 
   
<TABLE>
<CAPTION>
         NAME, AGE, POSITION WITH FUND AND ADDRESS                 PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- -----------------------------------------------------------    ---------------------------------------------------
<S>                                                            <C>
Barry Fink (43)                                                Senior Vice President (since March, 1997) and
Vice President, Secretary                                      Secretary and General Counsel (since February,
 and General Counsel                                           1997) of InterCapital and DWSC; Senior Vice
Two World Trade Center                                         President (since March, 1997) and Assistant
New York, New York                                             Secretary and Assistant General Counsel (since
                                                               February, 1997) of Distributors; Assistant
                                                               Secretary of DWR (since August, 1996); Vice
                                                               President, Secretary and General Counsel of the
                                                               Morgan Stanley Dean Witter Funds and the TCW/DW
                                                               Funds (since February, 1997); previously First Vice
                                                               President (June, 1993-February, 1997), Vice Presi-
                                                               dent (until June, 1993) and Assistant Secretary and
                                                               Assistant General Counsel of InterCapital and DWSC
                                                               and Assistant Secretary of the Morgan Stanley Dean
                                                               Witter Funds and the TCW/DW Funds.
Thomas F. Caloia (52)                                          First Vice President and Assistant Treasurer of
Treasurer                                                      InterCapital and DWSC; Treasurer of the
Two World Trade Center                                         Morgan Stanley Dean Witter Funds and the TCW/DW
New York, New York                                             Funds.
</TABLE>
    
 
- ------------------------------
 *Denotes Trustees who are "interested persons" of the Fund, as defined in the
Act.
 
   
     In addition, Mitchell M. Merin, President, Chief Executive Officer and
Director of InterCapital and DWSC, Chairman and Director of Distributors and
MSDW Trust, Executive Vice President and Director of DWR, and Director of SPS
Transaction Services, Inc. and various other MSDW subsidiaries, Robert M.
Scanlan, President and Chief Operating Officer, of InterCapital and DWSC,
Executive Vice President of Distributors and MSDW Trust and Director of MSDW
Trust, Robert S. Giambrone, Executive Vice President and Chief Administrative
Officer of InterCapital, DWSC, Distributors and MSDW Trust and Director of MSDW
Trust and Joseph J. McAlinden, Executive Vice President and Chief Investment
Officer of InterCapital and Director of MSDW Trust, are Vice Presidents of the
Fund. Marilyn K. Cranney and Carsten Otto, First Vice Presidents and Assistant
General Counsels of InterCapital and DWSC, and Lou Anne D. McInnis, Ruth Rossi
and Frank Bruttomesso, Vice Presidents and Assistant General Counsels of
InterCapital and DWSC, and Todd Lebo, a staff attorney with InterCapital, are
Assistant Secretaries of the Fund.
    
 
THE BOARD OF TRUSTEES, THE INDEPENDENT TRUSTEES, AND THE COMMITTEES
 
   
     The Board of Trustees consists of nine (9) trustees. These same individuals
also serve as directors or trustees for all of the Morgan Stanley Dean Witter
Funds, and are referred to in this section as Trustees. As of the date of this
Statement of Additional Information, there are a total of 86 Morgan Stanley Dean
Witter Funds, comprised of 130 portfolios. As of April 30, 1998, the Morgan
Stanley Dean Witter Funds had total net assets of approximately $105.4 billion
and more than six million shareholders.
    
 
     Seven Trustees (77% of the total number) have no affiliation or business
connection with InterCapital or any of its affiliated persons and do not own any
stock or other securities issued by InterCapital's parent company, MSDW. These
are the "disinterested" or "independent" Trustees. Four of the seven independent
Trustees are also Independent Trustees of the TCW/DW Funds.
 
   
     Law and regulation establish both general guidelines and specific duties
for the Independent Trustees. The Morgan Stanley Dean Witter Funds seek as
Independent Trustees individuals of distinction and experience in business and
finance, government service or academia; these are people whose
    
 
                                       10
<PAGE>   51
 
advice and counsel are in demand by others and for whom there is often
competition. To accept a position on the Funds' Boards, such individuals may
reject other attractive assignments because the Funds make substantial demands
on their time. Indeed, by serving on the Funds' Boards, certain Trustees who
would otherwise be qualified and in demand to serve on bank boards would be
prohibited by law from doing so.
 
     All of the Independent Trustees serve as members of the Audit Committee.
Three of them also serve as members of the Derivatives Committee. During the
calendar year ended December 31, 1997, the Audit Committee, the Derivatives
Committee and the Independent Trustees held a combined total of seventeen
meetings.
 
   
     The Independent Trustees are charged with recommending to the full Board
approval of management, advisory and administration contracts, Rule 12b-1 plans
and distribution and underwriting agreements; continually reviewing Fund
performance; checking on the pricing of portfolio securities, brokerage
commissions, transfer agent costs and performance, and trading among Funds in
the same complex; and approving fidelity bond and related insurance coverage and
allocations, as well as other matters that arise from time to time. The
Independent Trustees are required to select and nominate individuals to fill any
Independent Trustee vacancy on the Board of any Fund that has a Rule 12b-1 plan
of distribution. Most of the Morgan Stanley Dean Witter Funds have such a plan.
    
 
     The Audit Committee is charged with recommending to the full Board the
engagement or discharge of the Fund's independent accountants; directing
investigations into matters within the scope of the independent accountants'
duties, including the power to retain outside specialists; reviewing with the
independent accountants the audit plan and results of the auditing engagement;
approving professional services provided by the independent accountants and
other accounting firms prior to the performance of such services; reviewing the
independence of the independent accountants; considering the range of audit and
non-audit fees; and reviewing the adequacy of the Fund's system of internal
controls.
 
     Finally, the Board of each Fund has formed a Derivatives Committee to
approve parameters for and monitor the activities of the Fund with respect to
derivative investments, if any, made by the Fund.
 
   
ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT TRUSTEES FOR ALL MORGAN
STANLEY DEAN WITTER FUNDS
    
 
   
     The Independent Trustees and the Funds' management believe that having the
same Independent Trustees for each of the Morgan Stanley Dean Witter Funds
avoids the duplication of effort that would arise from having different groups
of individuals serving as Independent Trustees for each of the Funds or even of
sub-groups of Funds. They believe that having the same individuals serve as
Independent Trustees of all the Funds tends to increase their knowledge and
expertise regarding matters which affect the Fund complex generally and enhances
their ability to negotiate on behalf of each Fund with the Fund's service
providers. This arrangement also precludes the possibility of separate groups of
Independent Trustees arriving at conflicting decisions regarding operations and
management of the Funds and avoids the cost and confusion that would likely
ensue. Finally, having the same Independent Trustees serve on all Fund Boards
enhances the ability of each Fund to obtain, at modest cost to each separate
Fund, the services of Independent Trustees of the caliber, experience and
business acumen of the individuals who serve as Independent Trustees of the
Morgan Stanley Dean Witter Funds.
    
 
COMPENSATION OF INDEPENDENT TRUSTEES
 
     The Fund intends to pay each Independent Trustee an annual fee of $800 plus
a per meeting fee of $50 for meetings of the Board of Trustees, the Independent
Trustees or Committees of the Board of Trustees attended by the Trustee (the
Fund intends to pay the Chairman of the Audit Committee an additional annual fee
of $750). If a Board meeting and a meeting of the Independent Trustees or a
Committee meeting, or a meeting of the Independent Trustees and/or more than one
Committee meeting, take place on a single day, the Trustees are paid a single
meeting fee by the Fund. The Fund will also reimburse such Trustees for travel
and other out-of-pocket expenses incurred by them in connection with attending
such meetings. Trustees and officers of the Fund who are or have been
                                       11
<PAGE>   52
 
   
employed by the Investment Manager or an affiliated company will receive no
compensation or expense reimbursement from the Fund for their services as
Trustee. Payments will commence as of the time the Fund begins paying management
fees, which, pursuant to an undertaking by the Investment Manager, will be at
such time as the Fund has $50 million of net assets or six months from the date
of commencement of the Fund's operations, whichever occurs first. Mr. Haire
currently serves as Chairman of the Audit Committee.
    
 
   
     At such time as the Fund has been in operation, and has paid fees to the
Independent Trustees, for a full fiscal year, and assuming that during such
fiscal year the Fund holds the same number of meetings of the Board, the
Independent Trustees and the Committees as were held by the other Morgan Stanley
Dean Witter Funds during the calendar year ended December 31, 1997, it is
estimated that the compensation paid to each Independent Trustee during such
fiscal year will be the amount shown in the following table:
    
 
                         FUND COMPENSATION (ESTIMATED)
 
<TABLE>
<CAPTION>
                                                                AGGREGATE
                                                              COMPENSATION
                NAME OF INDEPENDENT TRUSTEE                   FROM THE FUND
                ---------------------------                   -------------
<S>                                                           <C>
Michael Bozic...............................................     $1,600
Edwin J. Garn...............................................      1,600
John R. Haire...............................................      2,350
Wayne E. Hedien.............................................      1,600
Dr. Manuel H. Johnson.......................................      1,600
Michael E. Nugent...........................................      1,600
John L. Schroeder...........................................      1,600
</TABLE>
 
   
     The following table illustrates the compensation paid to the Fund's
Independent Trustees for the calendar year ended December 31, 1997 for services
to the 84 Morgan Stanley Dean Witter Funds and, in the case of Messrs. Haire,
Johnson, Nugent and Schroeder, the 14 TCW/DW Funds that were in operation at
December 31, 1997. Mr. Haire serves as Chairman of the Audit Committee of each
Dean Witter Fund and each TCW/DW Fund and, prior to June 1, 1998, also served as
Chairman of the Independent Directors or Trustees of those Funds. With respect
to Messrs. Haire, Johnson, Nugent and Schroeder, the TCW/DW Funds are included
solely because of a limited exchange privilege between those Funds and five
Morgan Stanley Dean Witter Money Market Funds. Mr. Hedien's term as Director or
Trustee of each Morgan Stanley Dean Witter Fund commenced on September 1, 1997.
    
 
   
    CASH COMPENSATION FROM MORGAN STANLEY DEAN WITTER FUNDS AND TCW/DW FUNDS
    
   
    
 
   
<TABLE>
<CAPTION>
                                                                 FOR SERVICE AS
                               FOR SERVICE AS                     CHAIRMAN OR
                                DIRECTOR OR                       INDEPENDENT     FOR SERVICE AS     TOTAL CASH
                                TRUSTEE AND                        DIRECTORS/      CHAIRMAN OR      COMPENSATION
                                 COMMITTEE                        TRUSTEES AND     INDEPENDENT     FOR SERVICES TO
                                MEMBER OF 84    FOR SERVICE AS       AUDIT           TRUSTEES         84 MORGAN
                                   MORGAN        TRUSTEE AND       COMMITTEES       AND AUDIT          STANLEY
                                  STANLEY         COMMITTEE       OF 84 MORGAN      COMMITTEES       DEAN WITTER
                                DEAN WITTER      MEMBER OF 14     STANLEY DEAN        OF 14         FUNDS AND 14
 NAME OF INDEPENDENT TRUSTEE       FUNDS         TCW/DW FUNDS     WITTER FUNDS     TCW/DW FUNDS     TCW/DW FUNDS
 ---------------------------   --------------   --------------   --------------   --------------   ---------------
<S>                            <C>              <C>              <C>              <C>              <C>
Michael Bozic................     $133,602               --               --               --         $133,602
Edwin J. Garn................      149,702               --               --               --          149,702
John R. Haire................      149,702          $73,725         $157,463          $25,350          406,240
Wayne E. Hedien..............       39,010               --               --               --           39,010
Dr. Manuel H. Johnson........      145,702           71,125               --               --          216,827
Michael E. Nugent............      149,702           73,725               --               --          223,427
John L. Schroeder............      149,702           73,725               --               --          223,427
</TABLE>
    
 
   
     As of the date of this Statement of Additional Information, 57 of the
Morgan Stanley Dean Witter Funds, not including the Fund, have adopted a
retirement program under which an Independent Trustee
    
 
                                       12
<PAGE>   53
 
   
who retires after serving for at least five years (or such lesser period as may
be determined by the Board) as an Independent Director or Trustee of any Morgan
Stanley Dean Witter Fund that has adopted the retirement program (each such Fund
referred to as an "Adopting Fund" and each such Trustee referred to as an
"Eligible Trustee") is entitled to retirement payments upon reaching the
eligible retirement age (normally, after attaining age 72). Annual payments are
based upon length of service. Currently, upon retirement, each Eligible Trustee
is entitled to receive from the Adopting Fund, commencing as of his or her
retirement date and continuing for the remainder of his or her life, an annual
retirement benefit (the "Regular Benefit") equal to 29.41% of his or her
Eligible Compensation plus 0.4901667% of such Eligible Compensation for each
full month of service as an Independent Director or Trustee of any Adopting Fund
in excess of five years up to a maximum of 58.82% after ten years of service.
The foregoing percentages may be changed by the Board.(1) "Eligible
Compensation" is one-fifth of the total compensation earned by such Eligible
Trustee for service to the Adopting Fund in the five year period prior to the
date of the Eligible Trustee's retirement. Benefits under the retirement program
are not secured or funded by the Adopting Funds.
    
 
   
     The following table illustrates the retirement benefits accrued to the
Fund's Independent Trustees by the 57 Morgan Stanley Dean Witter Funds (not
including the Fund) for the year ended December 31, 1997, and the estimated
retirement benefits for the Fund's Independent Trustees, to commence upon their
retirement, from the 57 Morgan Stanley Dean Witter Funds as of December 31,
1997.
    
 
   
         RETIREMENT BENEFITS FROM ALL MORGAN STANLEY DEAN WITTER FUNDS
    
 
<TABLE>
<CAPTION>
                                                                                  RETIREMENT   ESTIMATED
                                                   ESTIMATED                       BENEFITS      ANNUAL
                                                   CREDITED                       ACCRUED AS    BENEFITS
                                                     YEARS         ESTIMATED       EXPENSES       UPON
                                                 OF SERVICE AT   PERCENTAGE OF      BY ALL     RETIREMENT
                                                  RETIREMENT       ELIGIBLE        ADOPTING     FROM ALL
          NAME OF INDEPENDENT TRUSTEE            (MAXIMUM 10)    COMPENSATION       FUNDS       ADOPTING
          ---------------------------            -------------   -------------    ----------    FUNDS(2)
<S>                                              <C>             <C>              <C>          <C>
Michael Bozic..................................       10          58.82%           $ 20,499     $ 55,026
Edwin J. Garn..................................       10           58.82             30,878       55,026
John R. Haire..................................       10           58.82            (19,823)(3)   132,002
Wayne E. Hedien................................        9           50.00                  0       46,772
Dr. Manuel H. Johnson..........................       10           58.82             12,832       55,026
Michael E. Nugent..............................       10           58.82             22,546       55,026
John L. Schroeder..............................        8           49.02             39,350       46,123
</TABLE>
 
- ---------------
(1)An Eligible Trustee may elect alternate payments of his or her retirement
   benefits based upon the combined life expectancy of such Eligible Trustee and
   his or her spouse on the date of such Eligible Trustee's retirement. The
   amount estimated to be payable under this method, through the remainder of
   the later of the lives of such Eligible Trustee and spouse, will be the
   actuarial equivalent of the Regular Benefit. In addition, the Eligible
   Trustee may elect that the surviving spouse's periodic payment of benefits
   will be equal to either 50% or 100% of the previous periodic amount, an
   election that, respectively, increases or decreases the previous periodic
   amount so that the resulting payments will be the actuarial equivalent of the
   Regular Benefit.
 
(2)Based on current levels of compensation. Amount of annual benefits also
   varies depending on the Trustee's elections described in Footnote (1) above.
 
(3)This number reflects the effect of the extension of Mr. Haire's term as
   Director or Trustee until May 1, 1999.
 
     As of the date of this Statement of Additional Information, the aggregate
number of shares of beneficial interest of the Fund owned by the Fund's officers
and Trustees as a group was less than 1 percent of the Fund's shares of
beneficial interest outstanding.
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------
 
     Private Placements.  As stated in the Prospectus, the Fund may invest up to
15% of its net assets in securities which are subject to restrictions on resale
because they have not been registered under the Securities Act of 1933, as
amended (the "Securities Act"), or which are otherwise not readily marketable.
(Securities eligible for resale pursuant to Rule 144A of the Securities Act, and
determined to be liquid pursuant to the procedures discussed in the following
paragraph, are not subject to the foregoing restriction.) These securities are
generally referred to as private placements or restricted securities.
 
                                       13
<PAGE>   54
 
Limitations on the resale of such securities may have an adverse effect on their
marketability, and may prevent the Fund from disposing of them promptly at
reasonable prices. The Fund may have to bear the expense of registering such
securities for resale and the risk of substantial delays in effecting such
registration.
 
     The Securities and Exchange Commission has adopted Rule 144A under the
Securities Act, which permits the Fund to sell restricted securities to
qualified institutional buyers without limitation. The Investment Manager,
pursuant to procedures adopted by the Trustees of the Fund, will make a
determination as to the liquidity of each restricted security purchased by the
Fund. The procedures require that the following factors be taken into account in
making a liquidity determination: (1) the frequency of trades and price quotes
for the security; (2) the number of dealers and other potential purchasers who
have issued quotes on the security; (3) any dealer undertakings to make a market
in the security; and (4) the nature of the security and the nature of the
marketplace trades (the time needed to dispose of the security, the method of
soliciting offers, and the mechanics of transfer). If a restricted security is
determined to be "liquid," such security will not be included within the
category "illiquid securities," which is limited by the Fund's investment
restrictions to 15% of the Fund's net assets.
 
     The Rule 144A marketplace of sellers and qualified institutional buyers is
new and still developing and may take a period of time to develop into a mature
liquid market. As such, the market for certain private placements purchased
pursuant to Rule 144A may be initially small or may, subsequent to purchase,
become illiquid. Furthermore, the Investment Manager may not possess all the
information concerning an issue of securities that it wishes to purchase in a
private placement to which it would normally have had access, had the
registration statement necessitated by a public offering been filed with the
Securities and Exchange Commission.
 
     Convertible Securities.  The Fund may invest in fixed-income securities
which are convertible into common stock. Convertible securities rank senior to
common stocks in a corporation's capital structure and, therefore, entail less
risk than the corporation's common stock. The value of a convertible security is
a function of its "investment value" (its value as if it did not have a
conversion privilege), and its "conversion value" (the security's worth if it
were to be exchanged for the underlying security, at market value, pursuant to
its conversion privilege).
 
     To the extent that a convertible security's investment value is greater
than its conversion value, its price will be primarily a reflection of such
investment value and its price will be likely to increase when interest rates
fall and decrease when interest rates rise, as with a fixed-income security (the
credit standing of the issuer and other factors may also have an effect on the
convertible security's value). If the conversion value exceeds the investment
value, the price of the convertible security will rise above its investment
value and, in addition, will sell at some premium over its conversion value.
(This premium represents the price investors are willing to pay for the
privilege of purchasing a fixed-income security with a possibility of capital
appreciation due to the conversion privilege.) At such times the price of the
convertible security will tend to fluctuate directly with the price of the
underlying equity security. Convertible securities may be purchased by the Fund
at varying price levels above their investment values and/or their conversion
values in keeping with the Fund's objective.
 
     Standard & Poor's Depositary Receipts ("SPDRs").  SPDRs are interests in a
unit investment trust ("UIT") that may be obtained from the UIT or purchased in
the secondary market as SPDRs listed on the American Stock Exchange.
 
     The UIT will issue SPDRs in aggregations of 50,000 known as "Creation
Units" in exchange for a "Portfolio Deposit" consisting of (a) a portfolio of
securities substantially similar to the component securities ("Index
Securities") of the S&P 500 Index, (b) a cash payment equal to a pro rata
portion of the dividends accrued on the UIT's portfolio securities since the
last dividend payment by the UIT, net of expenses and liabilities, and (c) a
cash payment or credit ("Balancing Amount") designed to equalize the net asset
value of the S&P 500 Index and the net asset value of a Portfolio Deposit.
 
     SPDRs are not individually redeemable, except upon termination of the UIT.
To redeem, the Fund must accumulate enough SPDRs to reconstitute a Creation
Unit. The liquidity of small holdings of
 
                                       14
<PAGE>   55
 
SPDRs, therefore, will depend upon the existence of a secondary market. Upon
redemption of a Creation Unit, the Fund will receive Index Securities and cash
identical to the Portfolio Deposit required of an investor wishing to purchase a
Creation Unit that day.
 
     The price of SPDRs is derived from and based upon the securities held by
the UIT. Accordingly, the level of risk involved in the purchase or sale of a
SPDR is similar to the risk involved in the purchase or sale of traditional
common stock, with the exception that the pricing mechanism for SPDRs is based
on a basket of stocks. Disruptions in the markets for the securities underlying
SPDRs purchased or sold by the Fund could result in losses on SPDRs.
 
     Rights and Warrants.  As stated in the Prospectus, the Fund may acquire
rights and warrants which are attached to other securities in its portfolio or
which are issued as a distribution by the issuer of a security held in its
portfolio. Warrants are, in effect, an option to purchase equity securities at a
specific price, generally valid for a specific period of time, and have no
voting rights, pay no dividends and have no rights with respect to the
corporations issuing them.
 
     U.S. Government Securities.  Securities issued by the U.S. Government, its
agencies or instrumentalities in which the Fund may invest include:
 
          (1) U.S. Treasury bills (maturities of one year or less), U.S.
     Treasury notes (maturities of one to ten years) and U.S. Treasury bonds
     (generally maturities of greater than ten years), all of which are direct
     obligations of the U.S. Government and, as such, are backed by the "full
     faith and credit" of the United States.
 
          (2) Securities issued by agencies and instrumentalities of the U.S.
     Government which are backed by the full faith and credit of the United
     States. Among the agencies and instrumentalities issuing such obligations
     are the Federal Housing Administration, the Government National Mortgage
     Association ("GNMA"), the Department of Housing and Urban Development, the
     Export-Import Bank, the Farmers Home Administration, the General Services
     Administration, the Maritime Administration and the Small Business
     Administration. The maturities of such obligations range from three months
     to 30 years.
 
     Neither the value nor the yield of the U.S. Government securities which may
be invested in by the Fund are guaranteed by the U.S. Government. Such values
and yield will fluctuate with changes in prevailing interest rates and other
factors. Generally, as prevailing interest rates rise, the value of any U.S.
Government securities held by the Fund will fall. Such securities with longer
maturities generally tend to produce higher yields and are subject to greater
market fluctuation as a result of changes in interest rates than debt securities
with shorter maturities.
 
     Zero Coupon Treasury Securities.  A portion of the U.S. Government
securities purchased by the Fund may be "zero coupon" Treasury securities. These
are U.S. Treasury bills, notes and bonds which have been stripped of their
unmatured interest coupons and receipts or which are certificates representing
interests in such stripped debt obligations and coupons. Such securities are
purchased at a discount from their face amount, giving the purchaser the right
to receive their full value at maturity. A zero coupon security pays no interest
to its holder during its life. Its value to an investor consists of the
difference between its face value at the time of maturity and the price for
which it was acquired, which is generally an amount significantly less than its
face value (sometimes referred to as a "deep discount" price). The Fund intends
to invest in such zero coupon treasury securities as STRIPS, Treasury Receipts,
Physical Coupons, and Proprietary Receipts.
 
     The interest earned on such securities is, implicitly, automatically
compounded and paid out at maturity. While such compounding at a constant rate
eliminates the risk of receiving lower yields upon reinvestment of interest if
prevailing interest rates decline, the owner of a zero coupon security will be
unable to participate in higher yields upon reinvestment of interest received if
prevailing interest rates rise. For this reason, zero coupon securities are
subject to substantially greater market price fluctuations during periods of
changing prevailing interest rates than are comparable debt securities which
make current distributions of interest. Current federal tax law requires that a
holder (such as the Fund) of a zero coupon security accrue a portion of the
discount at which the security was purchased as
                                       15
<PAGE>   56
 
income each year even though the Fund receives no interest payments in cash on
the security during the year.
 
     Currently the only U.S. Treasury security issued without coupons is the
Treasury bill. However, in the last few years a number of banks and brokerage
firms have separated ("stripped") the principal portions from the coupon
portions of the U.S. Treasury bonds and notes and sold them separately in the
form of receipts or certificates representing undivided interests in these
instruments (which instruments are generally held by a bank in a custodial or
trust account).
 
     As stated in the Prospectus, the money market instruments which the Fund
may purchase include U.S. Government securities, bank obligations, Eurodollar
certificates of deposit, obligations of savings institutions, fully insured
certificates of deposit and commercial paper. Such securities are limited to:
 
     U.S. Government Securities.  Obligations issued or guaranteed as to
principal and interest by the United States or its agencies (such as the
Export-Import Bank of the United States, Federal Housing Administration and
Government National Mortgage Association) or its instrumentalities (such as the
Federal Home Loan Bank), including Treasury bills, notes and bonds;
 
     Bank Obligations.  Obligations (including certificates of deposit and
bankers' acceptances) of banks subject to regulation by the U.S. Government and
having total assets of $1,000,000,000 or more, and instruments secured by such
obligations, not including obligations of foreign branches of domestic banks
except to the extent below;
 
     Eurodollar Certificates of Deposit.  Eurodollar certificates of deposit
issued by foreign branches of domestic banks having total assets of
$1,000,000,000 or more;
 
     Obligations of Savings Institutions.  Certificates of deposit of savings
banks and savings and loan associations, having total assets of $1,000,000,000
or more;
 
     Fully Insured Certificates of Deposit.  Certificates of deposit of banks
and savings institutions, having total assets of less than $1,000,000,000, if
the principal amount of the obligation is insured by the Federal Deposit
Insurance Corporation, limited to $100,000 principal amount per certificate and
to 15% or less of the Fund's total assets in all such obligations and in all
illiquid assets, in the aggregate;
 
     Commercial Paper.  Commercial paper rated within the two highest grades by
Standard & Poor's ("S&P") or the highest grade by Moody's Investors Service Inc.
("Moody's") or, if not rated, issued by a company having an outstanding debt
issue rated at least AA by S&P or Aa by Moody's.
 
FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS
 
     As discussed in the Prospectus, the Fund may enter into forward foreign
currency exchange contracts ("forward contracts") as a hedge against
fluctuations in future foreign exchange rates. The Fund will conduct its foreign
currency exchange transactions either on a spot (i.e., cash) basis at the spot
rate prevailing in the foreign currency exchange market, or through entering
into forward contracts to purchase or sell foreign currencies. A forward
contract involves an obligation to purchase or sell a specific currency at a
future date, which may be any fixed number of days from the date of the contract
agreed upon by the parties, at a price set at the time of the contract. These
contracts are traded in the interbank market conducted directly between currency
traders (usually large commercial banks and investment banks) and their
customers. Such forward contracts will only be entered into with United States
banks and their foreign branches or foreign banks whose assets total $1 billion
or more. A forward contract generally has no deposit requirement, and no
commissions are charged at any stage for trades.
 
     When management of the Fund believes that the currency of a particular
foreign country may suffer a substantial movement against the U.S. dollar, it
may enter into a forward contract to purchase or sell, for a fixed amount of
dollars or other currency, the amount of foreign currency approximating the
value of some or all of the Fund's portfolio securities denominated in such
foreign currency. The Fund will also not enter into such forward contracts or
maintain a net exposure to such contracts where the consummation of the
contracts would obligate the Fund to deliver an amount of foreign currency in
excess of the
 
                                       16
<PAGE>   57
 
value of the Fund's portfolio securities or other assets denominated in that
currency. Under normal circumstances, consideration of the prospect for currency
parities will be incorporated into the longer term investment decisions made
with regard to overall diversification strategies. However, the management of
the Fund believes that it is important to have the flexibility to enter into
such forward contracts when it determines that the best interests of the Fund
will be served. The Fund's custodian bank will place cash, U.S. Government
securities or other appropriate liquid portfolio securities in a segregated
account of the Fund in an amount equal to the value of the Fund's total assets
committed to the consummation of forward contracts entered into under the
circumstances set forth above. If the value of the securities placed in the
segregated account declines, additional cash or securities will be placed in the
account on a daily basis so that the value of the account will equal the amount
of the Fund's commitments with respect to such contracts.
 
     Where, for example, the Fund is hedging a portfolio position consisting of
foreign fixed-income securities denominated in a foreign currency against
adverse exchange rate moves vis-a-vis the U.S. dollar, at the maturity of the
forward contract for delivery by the Fund of a foreign currency, the Fund may
either sell the portfolio security and make delivery of the foreign currency, or
it may retain the security and terminate its contractual obligation to deliver
the foreign currency by purchasing an "offsetting" contract with the same
currency trader obligating it to purchase, on the same maturity date, the same
amount of the foreign currency. It is impossible to forecast the market value of
portfolio securities at the expiration of the contract. Accordingly, it may be
necessary for the Fund to purchase additional foreign currency on the spot
market (and bear the expense of such purchase) if the market value of the
security is less than the amount of foreign currency the Fund is obligated to
deliver and if a decision is made to sell the security and make delivery of the
foreign currency. Conversely, it may be necessary to sell on the spot market
some of the foreign currency received upon the sale of the portfolio securities
if its market value exceeds the amount of foreign currency the Fund is obligated
to deliver.
 
     If the Fund retains the portfolio securities and engages in an offsetting
transaction, the Fund will incur a gain or loss to the extent that there has
been movement in spot or forward contract prices. If the Fund engages in an
offsetting transaction, it may subsequently enter into a new forward contract to
sell the foreign currency. Should forward prices decline during the period
between the Fund's entering into a forward contract for the sale of a foreign
currency and the date it enters into an offsetting contract for the purchase of
the foreign currency, the Fund will realize a gain to the extent the price of
the currency it has agreed to sell exceeds the price of the currency it has
agreed to purchase. Should forward prices increase, the Fund will suffer a loss
to the extent the price of the currency it has agreed to purchase exceeds the
price of the currency it has agreed to sell.
 
     If the Fund purchases a fixed-income security which is denominated in U.S.
dollars but which will pay out its principal based upon a formula tied to the
exchange rate between the U.S. dollar and a foreign currency, it may hedge
against a decline in the principal value of the security by entering into a
forward contract to sell an amount of the relevant foreign currency equal to
some or all of the principal value of the security.
 
     At times when the Fund has written a call option on a fixed-income security
or the currency in which it is denominated, it may wish to enter into a forward
contract to purchase or sell the foreign currency in which the security is
denominated. A forward contract would, for example, hedge the risk of the
security on which a call option has been written declining in value to a greater
extent than the value of the premium received for the option. The Fund will
maintain with its Custodian at all times cash, U.S. Government securities and
liquid portfolio securities in a segregated account equal in value to all
forward contract obligations and option contract obligations entered into in
hedge situations such as this.
 
     Although the Fund values its assets daily in terms of U.S. dollars, it does
not intend to convert its holdings of foreign currencies into U.S. dollars on a
daily basis. It will, however, do so from time to time, and investors should be
aware of the costs of currency conversion. Although foreign exchange dealers do
not charge a fee for conversion, they do realize a profit based on the spread
between the prices at which they are buying and selling various currencies.
Thus, a dealer may offer to sell a foreign currency
 
                                       17
<PAGE>   58
 
to the Fund at one rate, while offering a lesser rate of exchange should the
Fund desire to resell that currency to the dealer.
 
OPTIONS AND FUTURES TRANSACTIONS
 
     As discussed in the Prospectus, the Fund may write covered call options
against securities held in its portfolio and purchase options of the same series
to effect closing transactions, and may hedge against potential changes in the
market value of its investments (or anticipated investments) by purchasing put
and call options on portfolio (or eligible portfolio) securities (and the
currencies in which they are denominated) and engaging in transactions involving
futures contracts and options on such contracts.
 
     Options on Foreign Currencies.  The Fund may purchase and write options on
foreign currencies for purposes similar to those involved with investing in
forward foreign currency exchange contracts. For example, in order to protect
against declines in the dollar value of portfolio securities which are
denominated in a foreign currency, the Fund may purchase put options on an
amount of such foreign currency equivalent to the current value of the portfolio
securities involved. As a result, the Fund would be enabled to sell the foreign
currency for a fixed amount of U.S. dollars, thereby "locking in" the dollar
value of the portfolio securities (less the amount of the premiums paid for the
options). Conversely, the Fund may purchase call options on foreign currencies
in which securities it anticipates purchasing are denominated to secure a set
U.S. dollar price for such securities and protect against a decline in the value
of the U.S. dollar against such foreign currency. The Fund may also purchase
call and put options to close out written option positions.
 
     The Fund may also write call options on foreign currency to protect against
potential declines in its portfolio securities which are denominated in foreign
currencies. If the U.S. dollar value of the portfolio securities falls as a
result of a decline in the exchange rate between the foreign currency in which
it is denominated and the U.S. dollar, then a loss to the Fund occasioned by
such value decline would be ameliorated by receipt of the premium on the option
sold. At the same time, however, the Fund gives up the benefit of any rise in
value of the relevant portfolio securities above the exercise price of the
option and, in fact, only receives a benefit from the writing of the option to
the extent that the value of the portfolio securities falls below the price of
the premium received. The Fund may also write options to close out long call
option positions.
 
     The markets in foreign currency options are relatively new and the Fund's
ability to establish and close out positions on such options is subject to the
maintenance of a liquid secondary market. Although the Fund will not purchase or
write such options unless and until, in the opinion of the management of the
Fund, the market for them has developed sufficiently to ensure that the risks in
connection with such options are not greater than the risks in connection with
the underlying currency, there can be no assurance that a liquid secondary
market will exist for a particular option at any specific time. In addition,
options on foreign currencies are affected by all of those factors which
influence foreign exchange rates and investments generally.
 
     The value of a foreign currency option depends upon the value of the
underlying currency relative to the U.S. dollar. As a result, the price of the
option position may vary with changes in the value of either or both currencies
and have no relationship to the investment merits of a foreign security,
including foreign securities held in a "hedged" investment portfolio. Because
foreign currency transactions occurring in the interbank market involve
substantially larger amounts than those that may be involved in the use of
foreign currency options, investors may be disadvantaged by having to deal in an
odd lot market (generally consisting of transactions of less than $1 million)
for the underlying foreign currencies at prices that are less favorable than for
round lots.
 
     There is no systematic reporting of last sale information for foreign
currencies or any regulatory requirement that quotations available through
dealers or other market sources be firm or revised on a timely basis. Quotation
information available is generally representative of very large transactions in
the interbank market and thus may not reflect relatively smaller transactions
(i.e., less than $1 million) where rates may be less favorable. The interbank
market in foreign currencies is a global, around-the-clock market. To the extent
that the U.S. options markets are closed while the markets for the underlying
 
                                       18
<PAGE>   59
 
currencies remain open, significant price and rate movements may take place in
the underlying markets that are not reflected in the options market.
 
     Covered Call Writing.  As stated in the Prospectus, the Fund is permitted
to write covered call options on portfolio securities and on the U.S. Dollar and
foreign currencies, without limit, in order to aid in achieving its investment
objectives. Generally, a call option is "covered" if the Fund owns, or has the
right to acquire, without additional cash consideration (or for additional cash
consideration held for the Fund by its Custodian in a segregated account) the
underlying security (currency) subject to the option except that in the case of
call options on U.S. Treasury Bills, the Fund might own U.S. Treasury Bills of a
different series from those underlying the call option, but with a principal
amount and value corresponding to the exercise price and a maturity date no
later than that of the security (currency) deliverable under the call option. A
call option is also covered if the Fund holds a call on the same security as the
underlying security (currency) of the written option, where the exercise price
of the call used for coverage is equal to or less than the exercise price of the
call written or greater than the exercise price of the call written if the
mark-to-market difference is maintained by the Fund in cash, U.S. Government
securities or other liquid portfolio securities which the Fund holds in a
segregated account maintained with its Custodian.
 
     The Fund will receive from the purchaser, in return for a call it has
written, a "premium"; i.e., the price of the option. Receipt of these premiums
may better enable the Fund to earn a higher level of current income than it
would earn from holding the underlying securities (currencies) alone. Moreover,
the premium received will offset a portion of the potential loss incurred by the
Fund if the securities (currencies) underlying the option are ultimately sold
(exchanged) by the Fund at a loss. The premium received will fluctuate with
varying economic market conditions. If the market value of the portfolio
securities (or the currencies in which they are denominated) upon which call
options have been written increases, the Fund may receive a lower total return
from the portion of its portfolio upon which calls have been written than it
would have had such calls not been written.
 
     As regards listed options and certain over-the-counter ("OTC") options,
during the option period, the Fund may be required, at any time, to deliver the
underlying security (currency) against payment of the exercise price on any
calls it has written (exercise of certain listed and OTC options may be limited
to specific expiration dates). This obligation is terminated upon the expiration
of the option period or at such earlier time when the writer effects a closing
purchase transaction. A closing purchase transaction is accomplished by
purchasing an option of the same series as the option previously written.
However, once the Fund has been assigned an exercise notice, the Fund will be
unable to effect a closing purchase transaction.
 
     Closing purchase transactions are ordinarily effected to realize a profit
on an outstanding call option, to prevent an underlying security (currency) from
being called, to permit the sale of an underlying security (or the exchange of
the underlying currency) or to enable the Fund to write another call option on
the underlying security (currency) with either a different exercise price or
expiration date or both. The Fund may realize a net gain or loss from a closing
purchase transaction depending upon whether the amount of the premium received
on the call option is more or less than the cost of effecting the closing
purchase transaction. Any loss incurred in a closing purchase transaction may be
wholly or partially offset by unrealized appreciation in the market value of the
underlying security (currency). Conversely, a gain resulting from a closing
purchase transaction could be offset in whole or in part or exceeded by a
decline in the market value of the underlying security (currency).
 
     If a call option expires unexercised, the Fund realizes a gain in the
amount of the premium on the option less the commission paid. Such a gain,
however, may be offset by depreciation in the market value of the underlying
security (currency) during the option period. If a call option is exercised, the
Fund realizes a gain or loss from the sale of the underlying security (currency)
equal to the difference between the purchase price of the underlying security
(currency) and the proceeds of the sale of the security (currency) plus the
premium received for the option less the commission paid.
 
                                       19
<PAGE>   60
 
     Options written by the Fund will normally have expiration dates of up to
eighteen months from the date written. The exercise price of a call option may
be below, equal to or above the current market value of the underlying security
at the time the option is written.
 
     Purchasing Call and Put Options.  As stated in the Prospectus, the Fund may
purchase listed and OTC call and put options in amounts equalling up to 5% of
its total assets. The Fund may purchase a call option in order to close out a
covered call position (see "Covered Call Writing" above), to protect against an
increase in price of a security it anticipates purchasing or, in the case of a
call option on foreign currency, to hedge against an adverse exchange rate move
of the currency in which the security it anticipates purchasing is denominated
vis-a-vis the currency in which the exercise price is denominated. The purchase
of the call option to effect a closing transaction on a call written
over-the-counter may be a listed or an OTC option. In either case, the call
purchased is likely to be on the same securities (currencies) and have the same
terms as the written option. If purchased over-the-counter, the option would
generally be acquired from the dealer or financial institution which purchased
the call written by the Fund.
 
     The Fund may purchase put options on securities (currencies) which it holds
in its portfolio only to protect itself against a decline in the value of the
security. If the value of the underlying security (currency) were to fall below
the exercise price of the put purchased in an amount greater than the premium
paid for the option, the Fund would incur no additional loss. In addition, the
Fund may sell a put option which it has previously purchased prior to the sale
of the securities (currencies) underlying such option. Such a sale would result
in a net gain or loss depending on whether the amount received on the sale is
more or less than the premium and other transaction costs paid on the put option
which is sold. And such gain or loss could be offset in whole or in part by a
change in the market value of the underlying security (currency). If a put
option purchased by the Fund expired without being sold or exercised, the
premium would be lost.
 
     Risks of Options Transactions.  The successful use of options depends on
the ability of the Investment Manager to forecast correctly interest rates and
market movements. If the market value of the portfolio securities upon which
call options have been written increases, the Fund may receive a lower total
return from the portion of its portfolio upon which calls have been written than
it would have had such calls not been written. In writing puts, the Fund assumes
the risk of loss should the market value of the underlying securities decline
below the exercise price of the option (any loss being decreased by the receipt
of the premium on the option written). During the option period, the covered
call writer has, in return for the premium on the option, given up the
opportunity for capital appreciation above the exercise price should the market
price of the underlying security (or the value of its denominated currency)
increase, but has retained the risk of loss should the price of the underlying
security (or the value of its denominated currency) decline. The writer has no
control over the time when it may be required to fulfill its obligation as a
writer of the option. Once an option writer has received an exercise notice, it
cannot effect a closing purchase transaction in order to terminate its
obligation under the option and must deliver or receive the underlying
securities at the exercise price.
 
     Prior to exercise or expiration, an option position can only be terminated
by entering into a closing purchase or sale transaction. If a covered call
option writer is unable to effect a closing purchase transaction or to purchase
an offsetting OTC option, it cannot sell the underlying security until the
option expires or the option is exercised. Accordingly, a covered call option
writer may not be able to sell an underlying security at a time when it might
otherwise be advantageous to do so.
 
     As discussed in the Prospectus, the Fund's ability to close out its
position as a writer of an option is dependent upon the existence of a liquid
secondary market on Option Exchanges. There is no assurance that such a market
will exist, particularly in the case of OTC options, as such options will
generally only be closed out by entering into a closing purchase transaction
with the purchasing dealer. However, the Fund may be able to purchase an
offsetting option which does not close out its position as a writer but
constitutes an asset of equal value to the obligation under the option written.
If the Fund is not able to either enter into a closing purchase transaction or
purchase an offsetting position, it will be required to maintain the securities
subject to the call, or the collateral underlying the put, even though it might
not
 
                                       20
<PAGE>   61
 
be advantageous to do so, until a closing transaction can be entered into (or
the option is exercised or expires).
 
     Among the possible reasons for the absence of a liquid secondary market on
an exchange are: (i) insufficient trading interest in certain options; (ii)
restrictions on transactions imposed by an exchange; (iii) trading halts,
suspensions or other restrictions imposed with respect to particular classes or
series of options or underlying securities; (iv) interruption of the normal
operations on an exchange; (v) inadequacy of the facilities of an exchange or
the Options Clearing Corporation ("OCC") to handle current trading volume; or
(vi) a decision by one or more exchanges to discontinue the trading of options
(or a particular class or series of options), in which event the secondary
market on that exchange (or in that class or series of options) would cease to
exist, although outstanding options on that exchange that had been issued by the
OCC as a result of trades on that Exchange would generally continue to be
exercisable in accordance with their terms.
 
     In the event of the bankruptcy of a broker through which the Fund engages
in transactions in options, the Fund could experience delays and/or losses in
liquidating open positions purchased or sold through the broker and/or incur a
loss of all or part of its margin deposits with the broker. Similarly, in the
event of the bankruptcy of the writer of an OTC option purchased by the Fund,
the Fund could experience a loss of all or part of the value of the option.
Transactions are entered into by the Fund only with brokers or financial
institutions deemed creditworthy by the Fund's management.
 
     Each of the exchanges has established limitations governing the maximum
number of options on the same underlying security or futures contract (whether
or not covered) which may be written by a single investor, whether acting alone
or in concert with others (regardless of whether such options are written on the
same or different exchange or are held or written on one or more accounts or
through one or more brokers). An exchange may order the liquidation of positions
found to be in violation of these limits and it may impose other sanctions or
restrictions. These position limits may restrict the number of listed options
which the Fund may write.
 
     The hours of trading for options may not conform to the hours during which
the underlying securities are traded. To the extent that the option markets
close before the markets for the underlying securities, significant price and
rate movements can take place in the underlying markets that cannot be reflected
in the option markets.
 
     Stock Index Options.  Options on stock indexes are similar to options on
stock except that, rather than the right to take or make delivery of stock at a
specified price, an option on a stock index gives the holder the right to
receive, upon exercise of the option, an amount of cash if the closing level of
the stock index upon which the option is based is greater than, in the case of a
call, or less than, in the case of a put, the exercise price of the option. This
amount of cash is equal to such difference between the closing price of the
index and the exercise price of the option expressed in dollars times a
specified multiple (the "multiplier"). The multiplier for an index option
performs a function similar to the unit of trading for a stock option. It
determines the total dollar value per contract of each point in the difference
between the exercise price of an option and the current level of the underlying
index. A multiplier of 100 means that a one-point difference will yield $100.
Options on different indexes may have different multipliers. The writer of the
option is obligated, in return for the premium received, to make delivery of
this amount. Unlike stock options, all settlements are in cash and a gain or
loss depends on price movements in the stock market generally (or in a
particular segment of the market) rather than the price movements in individual
stocks. Currently, options are traded on the Standard & Poor's 100 Index and the
Standard & Poor's 500 Index on the Chicago Board Options Exchange, the Major
Market Index and the Computer Technology Index, Oil Index and Institutional
Index on the American Stock Exchange and the NYSE Index and NYSE Beta Index on
the New York Stock Exchange, The Financial News Composite Index on the Pacific
Stock Exchange and the Value Line Index, National O-T-C Index and Utilities
Index on the Philadelphia Stock Exchange, each of which and any similar index on
which options are traded in the future which include stocks that are not limited
to any particular industry or segment of the market is referred to as a "broadly
based stock market index." Options on stock indexes provide a fund with a means
of protecting the Fund against the risk of market wide price movements. If the
Investment
 
                                       21
<PAGE>   62
 
Manager or Sub-Adviser anticipates a market decline, the Fund could purchase a
stock index put option. If the expected market decline materialized, the
resulting decrease in the value of the Fund's portfolio would be offset to the
extent of the increase in the value of the put option. If the Investment Manager
or Sub-Adviser anticipates a market rise, the Fund may purchase a stock index
call option to enable the Fund to participate in such rise until completion of
anticipated common stock purchases by the fund. Purchases and sales of stock
index options also enable the Investment Manager or Sub-Adviser to more speedily
achieve changes in a fund's equity positions.
 
     The Fund will write put options on stock indexes only if such positions are
covered by cash, U.S. Government securities or other liquid portfolio securities
equal to the aggregate exercise price of the puts, which cover is held for the
Fund in a segregated account maintained for it by the Fund's Custodian. All call
options on stock indexes written by the Fund will be covered either by a
portfolio of stocks substantially replicating the movement of the index
underlying the call option or by holding a separate call option on the same
stock index with a strike price no higher than the strike price of the call
option sold by the Fund.
 
     Risks of Options on Indexes.  Because exercises of stock index options are
settled in cash, call writers such as the Fund cannot provide in advance for
their potential settlement obligations by acquiring and holding the underlying
securities. A call writer can offset some of the risk of its writing position by
holding a diversified portfolio of stocks similar to those on which the
underlying index is based. However, most investors cannot, as a practical
matter, acquire and hold a portfolio containing exactly the same stocks as the
underlying index, and, as a result, bear a risk that the value of the securities
held will vary from the value of the index. Even if an index call writer could
assemble a stock portfolio that exactly reproduced the composition of the
underlying index, the writer still would not be fully covered from a risk
standpoint because of the "timing risk" inherent in writing index options. When
an index option is exercised, the amount of cash that the holder is entitled to
receive is determined by the difference between the exercise price and the
closing index level on the date when the option is exercised. As with other
kinds of options, the writer will not learn that it has been assigned until the
next business day, at the earliest. The time lag between exercise and notice of
assignment poses no risk for the writer of a covered call on a specific
underlying security, such as a common stock, because there the writer's
obligation is to deliver the underlying security, not to pay its value as of a
fixed time in the past. So long as the writer already owns the underlying
security, it can satisfy its settlement obligations by simply delivering it, and
the risk that its value may have declined since the exercise date is borne by
the exercising holder. In contrast, even if the writer of an index call holds
stocks that exactly match the composition of the underlying index, it will not
be able to satisfy its assignment obligations by delivering those stocks against
payment of the exercise price. Instead, it will be required to pay cash in an
amount based on the closing index value on the exercise date; and by the time it
learns that it has been assigned, the index may have declined, with a
corresponding decrease in the value of its stock portfolio. This "timing risk"
is an inherent limitation on the ability of index call writers to cover their
risk exposure by holding stock positions.
 
     A holder of an index option who exercises it before the closing index value
for that day is available runs the risk that the level of the underlying index
may subsequently change. If such a change causes the exercised option to fall
out-of-the-money, the exercising holder will be required to pay the difference
between the closing index value and the exercise price of the option (times the
applicable multiplier) to the assigned writer.
 
     If dissemination of the current level of an underlying index is
interrupted, or if trading is interrupted in stocks accounting for a substantial
portion of the value of an index, the trading of options on that index will
ordinarily be halted. If the trading of options on an underlying index is
halted, an exchange may impose restrictions prohibiting the exercise of such
options.
 
     Futures Contracts.  As stated in the Prospectus, the Fund may purchase and
sell interest rate, currency, and index futures contracts ("futures contracts"),
that are traded on U.S. and foreign commodity exchanges, on such underlying
securities as U.S. Treasury bonds, notes and bills and/or any foreign
 
                                       22
<PAGE>   63
 
government fixed-income security ("interest rate" futures), on various
currencies ("currency futures") and on such indexes of U.S. and foreign
securities as may exist or come into being ("index" futures).
 
     Although most interest rate futures contracts call for actual delivery or
acceptance of securities, the contracts usually are closed out before the
settlement date without the making or taking of delivery. A futures contract
sale is closed out by effecting a futures contract purchase for the same
aggregate amount of the specific type of security (currency) and the same
delivery date. If the sale price exceeds the offsetting purchase price, the
seller would be paid the difference and would realize a gain. If the offsetting
purchase price exceeds the sale price, the seller would pay the difference and
would realize a loss. Similarly, a futures contract purchase is closed out by
effecting a futures contract sale for the same aggregate amount of the specific
type of security (currency) and the same delivery date. If the offsetting sale
price exceeds the purchase price, the purchaser would realize a gain, whereas if
the purchase price exceeds the offsetting sale price, the purchaser would
realize a loss. There is no assurance that the Fund will be able to enter into a
closing transaction.
 
     Interest Rate Futures Contracts.  When the Fund enters into an interest
rate futures contract, it is initially required to deposit with the Fund's
Custodian, in a segregated account in the name of the broker performing the
transaction, an "initial margin" of cash or U.S. Government securities or other
liquid portfolio securities equal to approximately 3% of the contract amount.
Initial margin requirements are established by the Exchanges on which futures
contracts trade and may, from time to time, change. In addition, brokers may
establish margin deposit requirements in excess of those required by the
Exchanges.
 
     In addition, if the Fund holds a long position in a futures contract it
will hold cash, U.S. Government securities or other liquid portfolio securities
equal to the purchase price of the contract (less the amount of initial or
variation margin on deposit) in a segregated account maintained for the Fund by
its Custodian. Alternatively, the Fund could cover its long position by
purchasing a put option on the same futures contract with an exercise price as
high or higher than the price of the contract held by the Fund.
 
     Initial margin in futures transactions is different from margin in
securities transactions in that initial margin does not involve the borrowing of
funds by a brokers' client but is, rather, a good faith deposit on the futures
contract which will be returned to the Fund upon the proper termination of the
futures contract. The margin deposits made are marked to market daily and the
Fund may be required to make subsequent deposits of cash or U.S. Government
securities called "variation margin," with the Fund's futures contract clearing
broker, which are reflective of price fluctuations in the futures contract.
Currently, interest rate futures contracts can be purchased on debt securities
such as U.S. Treasury Bills and Bonds, U.S. Treasury Notes with Maturities
between 6 1/2 and 10 years, GNMA Certificates and Bank Certificates of Deposit.
 
     Currency Futures.  Generally, foreign currency futures provide for the
delivery of a specified amount of a given currency, on the delivery date, for a
set exercise price denominated in U.S. dollars or other currency. Foreign
currency futures contracts would be entered into for the same reason and under
the same circumstances as forward foreign currency exchange contracts. The
Investment Manager will assess such factors as cost spreads, liquidity and
transaction costs in determining whether to utilize futures contracts or forward
contracts its in foreign currency transactions and hedging strategy. Currently,
currency futures exist for, among other foreign currencies, the Japanese yen,
German marks, Canadian dollars, British pound, Swiss franc and European currency
unit.
 
     Purchasers and sellers of foreign currency futures contracts are subject to
the same risks that apply to the buying and selling of futures generally. In
addition, there are risks associated with foreign currency futures contracts and
their use as a hedging device similar to those associated with options on
foreign currencies described above. Further, settlement of a foreign currency
futures contract must occur within the country issuing the underlying currency.
Thus, the Fund must accept or make delivery of the underlying foreign currency
in accordance with any U.S. or foreign restrictions or regulation regarding the
maintenance of foreign banking arrangements by U.S. residents and may be
required to pay any fees, taxes or charges associated with such delivery which
are assessed in the issuing country.
 
                                       23
<PAGE>   64
 
     Options on foreign currency futures contracts may involve certain
additional risks. The ability to establish and close out positions on such
options is subject to the maintenance of a liquid secondary market. To reduce
this risk, the Fund will not purchase or write options on foreign currency
futures contracts unless and until, in the Investment Manager's opinion, the
market for such options has developed sufficiently that the risks in connection
with such options are not greater than the risks in connection with transactions
in the underlying foreign currency futures contracts.
 
     Index Futures Contracts.  As discussed in the Prospectus, the Fund may
invest in index futures contracts. An index futures contract sale creates an
obligation by the Fund, as seller, to deliver cash at a specified future time.
An index futures contract purchase would create an obligation by the Fund, as
purchaser, to take delivery of cash at a specified future time. Futures
contracts on indexes do not require the physical delivery of securities, but
provide for a final cash settlement on the expiration date which reflects
accumulated profits and losses credited or debited to each party's account.
 
     The Fund is required to maintain margin deposits with brokerage firms
through which it effects index futures contracts in a manner similar to that
described above for interest rate futures contracts. Currently, the initial
margin requirements range from 3% to 10% of the contract amount for index
futures. In addition, due to current industry practice, daily variations in
gains and losses on open contracts are required to be reflected in cash in the
form of variation margin payments. The Fund may be required to make additional
margin payments during the term of the contract.
 
     At any time prior to expiration of the futures contract, the Fund may elect
to close the position by taking an opposite position which will operate to
terminate the Fund's position in the futures contract. A final determination of
variation margin is then made, additional cash is required to be paid by or
released to the Fund and the Fund realizes a loss or gain.
 
     Options on Futures Contracts.  The writer of an option on a futures
contract is required to deposit initial and variation margin pursuant to
requirements similar to those applicable to futures contracts. Premiums received
from the writing of an option on a futures contract are included in initial
margin deposits.
 
     Risks of Transactions in Futures Contracts and Related Options.  The
successful use of futures and related options depends on the ability of the
Investment Manager to accurately predict market and interest rate movements. As
stated in the Prospectus, the Fund may sell a futures contract to protect
against the decline in the value of securities (or the currency in which they
are denominated) held by the Fund. However, it is possible that the futures
market may advance and the value of securities (or the currency in which they
are denominated) held in the portfolio of the Fund may decline. If this
occurred, the Fund would lose money on the futures contract and also experience
a decline in value of its portfolio securities. However, while this could occur
for a very brief period or to a very small degree, over time the value of a
diversified portfolio will tend to move in the same direction as the futures
contracts.
 
     If the Fund purchases a futures contract to hedge against the increase in
value of securities it intends to buy (or the currency in which they are
denominated), and the value of such securities (currencies) decreases, then the
Fund may determine not to invest in the securities as planned and will realize a
loss on the futures contract that is not offset by a reduction in the price of
the securities.
 
     In order to assure that the Fund is entering into transactions in futures
contracts for hedging purposes as such is defined by the Commodity Futures
Trading Commission either: 1) a substantial majority (i.e., approximately 75%)
of all anticipatory hedge transactions (transactions in which the Fund does not
own at the time of the transaction, but expects to acquire, the securities
underlying the relevant futures contract) involving the purchase of futures
contracts will be completed by the purchase of securities which are the subject
of the hedge or 2) the underlying value of all long positions in futures
contracts will not exceed the total value of a) all short-term debt obligations
held by the Fund; b) cash held by the Fund; c) cash proceeds due to the Fund on
investments within thirty days; d) the margin deposited on the contracts; and e)
any unrealized appreciation in the value of the contracts.
 
     If the Fund has sold a call option on a futures contract, it will cover
this position by holding, in a segregated account maintained at its Custodian,
cash, U.S. Government securities or other liquid
                                       24
<PAGE>   65
 
portfolio securities equal in value (when added to any initial or variation
margin on deposit) to the market value of the securities (currencies) underlying
the futures contract or the exercise price of the option. Such a position may
also be covered by owning the securities (currencies) underlying the futures
contract, or by holding a call option permitting the Fund to purchase the same
contract at a price no higher than the price at which the short position was
established.
 
     Exchanges limit the amount by which the price of a futures contract may
move on any day. If the price moves equal the daily limit on successive days,
then it may prove impossible to liquidate a futures position until the daily
limit moves have ceased. In the event of adverse price movements, the Fund would
continue to be required to make daily cash payments of variation margin on open
futures positions. In such situations, if the Fund has insufficient cash, it may
have to sell portfolio securities to meet daily variation margin requirements at
a time when it may be disadvantageous to do so. In addition, the Fund may be
required to take or make delivery of the instruments underlying interest rate
futures contracts it holds at a time when it is disadvantageous to do so. The
inability to close out options and futures positions could also have an adverse
impact on the Fund's ability to effectively hedge its portfolio.
 
     Futures contracts and options thereon which are purchased or sold on
foreign commodities exchanges may have greater price volatility than their U.S.
counterparts. Furthermore, foreign commodities exchanges may be less regulated
and under less governmental scrutiny than U.S. exchanges. Brokerage commissions,
clearing costs and other transaction costs may be higher on foreign exchanges.
Greater margin requirements may limit the Fund's ability to enter into certain
commodity transactions on foreign exchanges. Moreover, differences in clearance
and delivery requirements on foreign exchanges may occasion delays in the
settlement of the Fund's transactions effected on foreign exchanges.
 
     In the event of the bankruptcy of a broker through which the Fund engages
in transactions in futures or options thereon, the Fund could experience delays
and/or losses in liquidating open positions purchased or sold through the broker
and/or incur a loss of all or part of its margin deposits with the broker.
Similarly, in the event of the bankruptcy of the writer of an OTC option
purchased by the Fund, the Fund could experience a loss of all or part of the
value of the option. Transactions are entered into by the Fund only with brokers
or financial institutions deemed creditworthy by the Investment Manager.
 
     While the futures contracts and options transactions to be engaged in by
the Fund for the purpose of hedging the Fund's portfolio securities are not
speculative in nature, there are risks inherent in the use of such instruments.
One such risk which may arise in employing futures contracts to protect against
the price volatility of portfolio securities (and the currencies in which they
are denominated) is that the prices of securities and indexes subject to futures
contracts (and thereby the futures contract prices) may correlate imperfectly
with the behavior of the cash prices of the Fund's portfolio securities (and the
currencies in which they are denominated). Another such risk is that prices of
interest rate futures contracts may not move in tandem with the changes in
prevailing interest rates against which the Fund seeks a hedge. A correlation
may also be distorted by the fact that the futures market is dominated by
short-term traders seeking to profit from the difference between a contract or
security price objective and their cost of borrowed funds. Such distortions are
generally minor and would diminish as the contract approached maturity.
 
     As stated in the Prospectus, there may exist an imperfect correlation
between the price movements of futures contracts purchased by the Fund and the
movements in the prices of the securities (currencies) which are the subject of
the hedge. If participants in the futures market elect to close out their
contracts through offsetting transactions rather than meet margin deposit
requirements, distortions in the normal relationship between the debt securities
or currency markets and futures markets could result. Price distortions could
also result if investors in futures contracts opt to make or take delivery of
underlying securities rather than engage in closing transactions due to the
resultant reduction in the liquidity of the futures market. In addition, due to
the fact that, from the point of view of speculators, the deposit requirements
in the futures markets are less onerous than margin requirements in the cash
market, increased participation by speculators in the futures market could cause
temporary price
 
                                       25
<PAGE>   66
 
distortions. Due to the possibility of price distortions in the futures market
and because of the imperfect correlation between movements in the prices of
securities and movements in the prices of futures contracts, a correct forecast
of interest rate trends may still not result in a successful hedging
transaction.
 
     As stated in the Prospectus, there is no assurance that a liquid secondary
market will exist for futures contracts and related options in which the Fund
may invest. In the event a liquid market does not exist, it may not be possible
to close out a futures position, and in the event of adverse price movements,
the Fund would continue to be required to make daily cash payments of variation
margin. In addition, limitations imposed by an exchange or board of trade on
which futures contracts are traded may compel or prevent the Fund from closing
out a contract which may result in reduced gain or increased loss to the Fund.
The absence of a liquid market in futures contracts might cause the Fund to make
or take delivery of the underlying securities (currencies) at a time when it may
be disadvantageous to do so.
 
     Compared to the purchase or sale of futures contracts, the purchase of call
or put options on futures contracts involves less potential risk to the Fund
because the maximum amount at risk is the premium paid for the options (plus
transaction costs). However, there may be circumstances when the purchase of a
call or put option on a futures contract would result in a loss to the Fund
notwithstanding that the purchase or sale of a futures contract would not result
in a loss, as in the instance where there is no movement in the prices of the
futures contract or underlying securities (currencies).
 
     Repurchase Agreements.  When cash may be available for only a few days, it
may be invested by the Fund in repurchase agreements until such time as it may
otherwise be invested or used for payments of obligations of the Fund. A
repurchase agreement may be viewed as a type of secured lending by the Fund
which typically involves the acquisition by the Fund of government securities
from a selling financial institution such as a bank, savings and loan
association or broker-dealer. The agreement provides that the Fund will sell
back to the institution, and that the institution will repurchase, the
underlying security ("collateral") at a specified price and at a fixed time in
the future, usually not more than seven days from the date of purchase. The
collateral will be maintained in a segregated account and will be
marked-to-market daily to determine that the full value of the collateral, as
specified in the agreement, is always at least equal to the purchase price plus
accrued interest. If required, additional collateral will be added to the
account to maintain full collateralization. In the event the original seller
defaults on its obligations to repurchase, as a result of its bankruptcy or
otherwise, the Fund will seek to sell the collateral, which action could involve
costs or delays. In such case, the Fund's ability to dispose of the collateral
to recover its investment may be restricted or delayed.
 
     The Fund will accrue interest from the institution until the time when the
repurchase is to occur. Although such date is deemed by the Fund to be the
maturity date of a repurchase agreement, the maturities of securities subject to
repurchase agreements are not subject to any limits and may exceed one year.
 
     While repurchase agreements involve certain risks not associated with
direct investments in debt securities, the Fund follows procedures designed to
minimize such risks. Repurchase agreements will be transacted only with large,
well-capitalized and well-established financial institutions whose financial
condition will be continuously monitored by the management of the Fund subject
to procedures established by the Trustees. The procedures also require that the
collateral underlying the agreement be specified. The Fund does not intend to
enter into repurchase agreements so that more than 10% of the Fund's net assets
are subject to such agreements.
 
     When-Issued and Delayed Delivery Securities and Forward Commitments.  As
discussed in the Prospectus, from time to time, in the ordinary course of
business, the Fund may purchase securities on a when-issued or delayed delivery
basis and may purchase or sell securities on a forward commitment basis. When
such transactions are negotiated, the price is fixed at the time of the
commitment, but delivery and payment can take place a month or more after the
date of the commitment. The securities so purchased are subject to market
fluctuation and no interest accrues to the purchaser during this period. While
the Fund will only purchase securities on a when-issued, delayed delivery or
forward
 
                                       26
<PAGE>   67
 
commitment basis with the intention of acquiring the securities, the Fund may
sell the securities before the settlement date, if it is deemed advisable. At
the time the Fund makes the commitment to purchase securities on a when-issued
or delayed delivery basis, the Fund will record the transaction and thereafter
reflect the value, each day, of such security in determining the net asset value
of the Fund. At the time of delivery of the securities, the value may be more or
less than the purchase price. The Fund will also establish a segregated account
with the Fund's custodian bank in which it will continuously maintain cash or
U.S. Government securities or other liquid portfolio securities equal in value
to commitments for such when-issued or delayed delivery securities; subject to
this requirement, the Fund may purchase securities on such basis without limit.
An increase in the percentage of the Fund's assets committed to the purchase of
securities on a when-issued or delayed delivery basis may increase the
volatility of the Fund's net asset value.
 
     When, As and If Issued Securities.  As discussed in the Prospectus, the
Fund may purchase securities on a "when, as and if issued" basis under which the
issuance of the security depends upon the occurrence of a subsequent event, such
as approval of a merger, corporate reorganization, leveraged buyout or debt
restructuring. The commitment for the purchase of any such security will not be
recognized in the portfolio of the Fund until the Investment Manager determines
that issuance of the security is probable. At such time, the Fund will record
the transaction and, in determining its net asset value, will reflect the value
of the security daily. At such time, the Fund will also establish a segregated
account with its custodian bank in which it will continuously maintain cash or
U.S. Government securities or other liquid portfolio securities equal in value
to recognized commitments for such securities. Settlement of the trade will
occur within five business days of the occurrence of the subsequent event.
Subject to the foregoing restrictions and restrictions under the Act (see
"Investment Restrictions" below and in the Prospectus), the Fund may purchase
securities on such basis without limit. An increase in the percentage of the
Fund's assets committed to the purchase of securities on a "when, as and if
issued" basis may increase the volatility of its net asset value. The Fund may
also sell securities on a "when, as and if issued" basis provided that the
issuance of the security will result automatically from the exchange or
conversion of a security owned by the Fund at the time of the sale.
 
     Lending of Portfolio Securities.  Consistent with applicable regulatory
requirements, the Fund may lend its portfolio securities to brokers, dealers and
other financial institutions, provided that such loans are callable at any time
by the Fund (subject to notice provisions described below), and are at all times
secured by cash or appropriate high-grade debt obligations, which are maintained
in a segregated account pursuant to applicable regulations and that are at least
equal to the market value, determined daily, of the loaned securities. The
advantage of such loans is that the Fund continues to receive the income on the
loaned securities while at the same time earning interest on the cash amounts
deposited as collateral, which will be invested in short-term obligations. The
Fund will not lend its portfolio securities if such loans are not permitted by
the laws or regulations of any state in which its shares are qualified for sale
and will not lend more than 25% of the value of its total assets. A loan may be
terminated by the borrower on one business days' notice, or by the Fund on two
business days' notice. If the borrower fails to deliver the loaned securities
within two days after receipt of notice, the Fund could use the collateral to
replace the securities while holding the borrower liable for any excess of
replacement cost over collateral. As with any extensions of credit, there are
risks of delay in recovery and in some cases even loss of rights in the
collateral should the borrower of the securities fail financially. However,
these loans of portfolio securities will only be made to firms deemed by the
Fund's management to be creditworthy and when the income which can be earned
from such loans justifies the attendant risks. Upon termination of the loan, the
borrower is required to return the securities to the Fund. Any gain or loss in
the market price during the loan period would inure to the Fund. The
creditworthiness of firms to which the Fund lends its portfolio securities will
be monitored on an ongoing basis by the Fund's management pursuant to procedures
adopted and reviewed, on an ongoing basis, by the Board of Trustees of the Fund.
 
     When voting or consent rights which accompany loaned securities pass to the
borrower, the Fund will follow the policy of calling the loaned securities, to
be delivered within one day after notice, to permit the exercise of such rights
if the matters involved would have a material effect on the Fund's investment in
such loaned securities. The Fund will pay reasonable finder's, administrative
and custodial fees in
 
                                       27
<PAGE>   68
 
connection with a loan of its securities. The Fund has not to date nor does it
presently intend to lend any of its portfolio securities.
 
     New Instruments.  New financial products and various combinations thereof
continue to be developed. The Fund may invest in any such products as may be
developed, to the extent consistent with its investment objective and applicable
regulatory requirements.
 
     Portfolio Turnover.  It is anticipated that the portfolio turnover rate of
the Fund will not exceed 200%. A 200% turnover rate would occur, for example, if
200% of the securities held in a Portfolio of the Fund (excluding all securities
whose maturities at acquisition were one year or less) were sold and replaced
within one year.
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
     In addition to the investment restrictions enumerated in the Prospectus,
the investment restrictions listed below have been adopted by the Fund as
fundamental policies, except as otherwise indicated. Under the Act, a
fundamental policy may not be changed without the vote of a majority of the
outstanding voting securities of the Fund, as defined in the Act. Such a
majority is defined as the lesser of (a) 67% or more of the shares present at a
meeting of shareholders, if the holders of 50% of the outstanding shares of the
Fund are present or represented by proxy or (b) more than 50% of the outstanding
shares of the Fund.
 
     The Fund may not:
 
          1. Purchase or sell real estate or interests therein, although the
     Fund may purchase securities of issuers which engage in real estate
     operations and securities secured by real estate or interests therein.
 
          2. Purchase oil, gas or other mineral leases, rights or royalty
     contracts or exploration or development programs, except that the Fund may
     invest in the securities of companies which operate, invest in, or sponsor
     such programs.
 
          3. Borrow money, except that the Fund may borrow from a bank for
     temporary or emergency purposes in amounts not exceeding 5% (taken at the
     lower of cost or current value) of its total assets (not including the
     amount borrowed).
 
          4. Issue senior securities as defined in the Act except insofar as the
     Fund may be deemed to have issued a senior security by reason of (a)
     entering into any repurchase agreement; (b) borrowing money in accordance
     with restrictions described above; or (c) lending portfolio securities.
 
          5. Make loans of money or securities, except by investment in
     repurchase agreements. (For the purpose of this restriction, lending of
     portfolio securities by the Fund is not deemed to be a loan).
 
          6. Make short sales of securities or maintain a short position, unless
     at all times when a short position is open it either owns an equal amount
     of such securities or owns securities which, without payment of any further
     consideration, are convertible into or exchangeable for securities of the
     same issue as, and equal in amount to, the securities sold short.
 
          7. Engage in the underwriting of securities, except insofar as the
     Fund may be deemed an underwriter under the Securities Act of 1933 in
     disposing of a portfolio security.
 
          8. Invest for the purpose of exercising control or management of any
     other issuer.
 
          9. Purchase or sell commodities or commodities contracts except that
     the Fund may purchase or write interest rate, currency and stock and bond
     index futures contracts and related options thereon.
 
                                       28
<PAGE>   69
 
        10. Pledge its assets or assign or otherwise encumber them except to
     secure permitted borrowings. (For the purpose of this restriction,
     collateral arrangements with respect to the writing of options by the Fund
     and collateral arrangements with respect to initial or variation margin for
     futures by the Fund are not deemed to be pledges of assets.)
 
        11. Purchase securities on margin (but the Fund may obtain short-term
     loans as are necessary for the clearance of transactions). The deposit or
     payment by the Fund of initial or variation margin in connection with
     futures contracts or related options thereon is not considered the purchase
     of a security on margin.
 
     As a nonfundamental policy, the Fund will not invest in other investment
companies in reliance on Sections 12(d)(1)(F), 12(d)(1)(G) or 12(d)(1)(J) of the
Act.
 
     If a percentage restriction is adhered to at the time of investment, a
later increase or decrease in percentage resulting from a change in values of
portfolio securities or amount of total or net assets will not be considered a
violation of any of the foregoing restrictions.
PORTFOLIO TRANSACTIONS AND BROKERAGE
- --------------------------------------------------------------------------------
 
     Subject to the general supervision of the Fund's Trustees, the Investment
Manager and the Sub-Adviser are responsible for decisions to buy and sell
securities of the Fund, the selection of brokers and dealers to effect the
transactions, and the negotiation of brokerage commissions, if any. Purchases
and sales of securities on a stock exchange are effected through brokers who
charge a commission for their services. In the over-the-counter market,
securities are generally traded on a "net" basis with non-affiliated dealers
acting as principal for their own accounts without a stated commission, although
the price of the security usually includes a profit to the dealer. The Fund also
expects that securities will be purchased at times in underwritten offerings
where the price includes a fixed amount of compensation, generally referred to
as the underwriter's concession or discount. In the underwritten offerings,
securities are purchased at a fixed price which includes an amount of
compensation equal to the underwriter's concession. On occasion, certain money
market instruments may be purchased directly from an issuer, in which case no
commissions or discounts are paid.
 
   
     The Investment Manager and the Sub-Adviser currently serve as investment
advisors to a number of clients, including other investment companies, and may
in the future act as investment manager or adviser to others. It is the practice
of each the Investment Manager and the Sub-Adviser to cause purchase and sale
transactions to be allocated among the Fund and others whose assets it manages
in such manner as it deems equitable. In making such allocations among the Fund
and other client accounts, various factors may be considered, including the
respective investment objectives, the relative size of portfolio holdings of the
same or comparable securities, the availability of cash for investment, the size
of investment commitments generally held and the opinions of the persons
responsible for managing the portfolios of the Fund and other client accounts.
In the case of certain initial and secondary public offerings, the Investment
Manager and the Sub-Adviser utilize a pro rata allocation process based on the
size of the Morgan Stanley Dean Witter Funds or other funds and client accounts
involved and the number of shares available from the public offering.
    
 
     The policy of the Fund regarding purchases and sales of securities for its
portfolio is that primary consideration will be given to obtaining the most
favorable prices and efficient executions of transactions. Consistent with this
policy, when securities transactions are effected on a stock exchange, the
Fund's policy is to pay commissions which are considered fair and reasonable
without necessarily determining that the lowest possible commissions are paid in
all circumstances. The Fund believes that a requirement always to seek the
lowest possible commission cost could impede effective portfolio management and
preclude the Fund and the Investment Manager and the Sub-Adviser from obtaining
a high quality of brokerage and research services. In seeking to determine the
reasonableness of brokerage commissions paid in any transaction, the Investment
Manager and the Sub-Adviser rely upon their experience and knowledge regarding
commissions generally charged by various brokers and on their judgment in
evaluating the brokerage and research services received from the broker
effecting the
 
                                       29
<PAGE>   70
 
transaction. Such determinations are necessarily subjective and imprecise, as in
most cases an exact dollar value for those services is not ascertainable.
 
     The Fund anticipates that certain of its transactions involving foreign
securities will be effected on securities exchanges. Fixed commissions on such
transactions are generally higher than negotiated commissions on domestic
transactions. There is also generally less government supervision and regulation
of foreign securities exchanges and brokers than in the United States.
 
     In seeking to implement the Fund's policies, the Investment Manager and the
Sub-Adviser effect transactions with those brokers and dealers who the
Investment Manager and the Sub-Adviser believe provide the most favorable prices
and are capable of providing efficient executions. If the Investment Manager
and/or the Sub-Adviser believe such prices and executions are obtainable from
more than one broker or dealer, they may give consideration to placing portfolio
transactions with those brokers and dealers who also furnish research and other
services to the Fund or the Investment Manager and/or the Sub-Adviser. Such
services may include, but are not limited to, any one or more of the following:
information as to the availability of securities for purchase or sale;
statistical or factual information or opinions pertaining to investment; wire
services; and appraisals or evaluations of portfolio securities.
 
     The information and services received by the Investment Manager and the
Sub-Adviser from brokers and dealers may be of benefit to the Investment Manager
and the Sub-Adviser in the management of accounts of some of their other clients
and may not in all cases benefit the Fund directly. While the receipt of such
information and services is useful in varying degrees and would generally reduce
the amount of research or services otherwise performed by the Investment Manager
and the Sub-Adviser and thereby reduce their expenses, it is of indeterminable
value and the fees paid to the Investment Manager and the Sub-Adviser are not
reduced by any amount that may be attributable to the value of such services.
 
     Pursuant to an order of the Securities and Exchange Commission, the Fund
may effect principal transactions in certain money market instruments with DWR.
The Fund will limit its transactions with DWR to U.S. Government and Government
Agency Securities, Bank Money Instruments (i.e., Certificates of Deposit and
Bankers' Acceptances) and Commercial Paper. Such transactions will be effected
with DWR only when the price available from DWR is better than that available
from other dealers.
 
     Consistent with the policy described above, brokerage transactions in
securities listed on exchanges or admitted to unlisted trading privileges may be
effected through DWR, Morgan Stanley and Co. Incorporated and other affiliated
brokers and dealers. In order for an affiliated broker or dealer to effect any
portfolio transactions for the Fund, the commissions, fees or other remuneration
received by the affiliated broker or dealer must be reasonable and fair compared
to the commissions, fees or other remuneration paid to other brokers in
connection with comparable transactions involving similar securities being
purchased or sold on an exchange during a comparable period of time. This
standard would allow the affiliated broker or dealer to receive no more than the
remuneration which would be expected to be received by an unaffiliated broker in
a commensurate arm's-length transaction. Furthermore, the Trustees of the Fund,
including a majority of the Trustees who are not "interested" persons of the
Fund, as defined in the Act, have adopted procedures which are reasonably
designed to provide that any commissions, fees or other remuneration paid to an
affiliated broker or dealer are consistent with the foregoing standard. The Fund
does not reduce the management fee it pays to the Investment Manager by any
amount of the brokerage commissions it may pay to an affiliated broker or
dealer.
UNDERWRITING
- --------------------------------------------------------------------------------
 
     Dean Witter Distributors Inc. (the "Underwriter") has agreed to purchase up
to 10,000,000 shares from the Fund, which number may be increased or decreased
in accordance with the Underwriting Agreement. The Underwriting Agreement
provides that the obligation of the Underwriter is subject to certain conditions
precedent (such as the filing of certain forms and documents required by various
federal and state agencies and the rendering of certain opinions of counsel) and
that the Underwriter will be obligated to purchase the shares of the Fund on
July 29, 1998, or such other date as may be agreed upon between the Underwriter
and the Fund and to purchase shares of the Fund at a later date
 
                                       30
<PAGE>   71
 
to be agreed upon between the Underwriter and the Fund (each a "Closing Date").
Shares will not be issued and dividends will not be declared by the Fund until
after the Closing Date.
 
     The Underwriter will purchase Class B, Class C and Class D shares from the
Fund at $10.00 per share with all proceeds going to the Fund and will purchase
Class A shares at $10.00 per share plus a sales charge with the sales charge
paid to the Underwriter and the $10.00 per share going to the Fund.
 
     The Underwriter may, however, receive contingent deferred sales charges for
future redemptions of Class A, Class B and Class C shares (see "Purchase of Fund
Shares--Continuous Offering" in the Prospectus).
 
     The Underwriter shall, regardless of its expected underwriting commitment,
be entitled and obligated to purchase only the number of shares for which
purchase orders have been received by the Underwriter prior to 2:00 p.m., New
York time, on the third business day preceding the Closing Date, or such other
date as may be agreed to between the parties.
 
     The minimum number of Fund shares which may be purchased pursuant to this
offering is 100 shares. Certificates for shares purchased will not be issued
unless requested by the shareholder in writing.
 
     The Underwriter has agreed to pay certain expenses of the initial offering
and the subsequent Continuous Offering of the Portfolio's shares. The Fund has
agreed to pay certain compensation to the Underwriter pursuant to a Plan of
Distribution pursuant to Rule 12b-1 under the Act, to compensate the Underwriter
for services it renders and the expenses it bears under the Underwriting
Agreement (see "The Distributor"). The Fund will bear the cost of initial
typesetting, printing and distribution of Prospectuses and Statements of
Additional Information and supplements thereto to shareholders. The Fund has
agreed to indemnify the Underwriter against certain liabilities, including
liabilities under the Securities Act of 1933, as amended.
THE DISTRIBUTOR
- --------------------------------------------------------------------------------
 
   
     As discussed in the Prospectus, shares of the Fund are distributed by Dean
Witter Distributors Inc. (the "Distributor"). The Distributor has entered into a
selected dealer agreement with DWR, which through its own sales organization
sells shares of the Fund. In addition, the Distributor may enter into selected
dealer agreements with other selected broker-dealers. The Distributor, a
Delaware corporation, is a wholly-owned subsidiary of MSDW. The Trustees of the
Fund, including a majority of the Trustees who are not, and were not at the time
they voted, interested persons of the Fund, as defined in the Act (the
"Independent Trustees"), approved, at their meeting held on April 30, 1998, the
current Distribution Agreement appointing the Distributor as exclusive
distributor of the Fund's shares and providing for the Distributor to bear
distribution expenses not borne by the Fund. By its terms, the Distribution
Agreement has an initial term ending April, 1999 and will remain in effect from
year to year thereafter if approved by the Board.
    
 
   
     The Distributor bears all expenses it may incur in providing services under
the Distribution Agreement. Such expenses include the payment of commissions for
sales of the Fund's shares and incentive compensation to Morgan Stanley Dean
Witter Financial Advisors and other selected broker-dealer representatives. The
Distributor also pays certain expenses in connection with the distribution of
the Fund's shares, including the costs of preparing, printing and distributing
advertising or promotional materials, and the costs of printing and distributing
prospectuses and supplements thereto used in connection with the offering and
sale of the Fund's shares. The Fund bears the costs of initial typesetting,
printing and distribution of prospectuses and supplements thereto to
shareholders. The Fund also bears the costs of registering the Fund and its
shares under federal securities laws and pays filing fees in accordance with
state securities laws. The Fund and the Distributor have agreed to indemnify
each other against certain liabilities, including liabilities under the
Securities Act of 1933, as amended. Under the Distribution Agreement, the
Distributor uses its best efforts in rendering services to the Fund, but in the
absence of willful misfeasance, bad faith, gross negligence or reckless
disregard of its obligations,
    
 
                                       31
<PAGE>   72
 
the Distributor is not liable to the Fund or any of its shareholders for any
error of judgment or mistake of law or for any act or omission or for any losses
sustained by the Fund or its shareholders.
 
     Plan of Distribution.  The Fund has adopted a Plan of Distribution pursuant
to Rule 12b-1 under the Act (the "Plan") pursuant to which each Class, other
than Class D, pays the Distributor compensation accrued daily and payable
monthly at the following annual rates: 0.25%, 1.0% and 1.0% of the average daily
net assets of Class A, Class B and Class C, respectively. The Distributor also
receives the proceeds of front-end sales charges and of contingent deferred
sales charges imposed on certain redemptions of shares, which are separate and
apart from payments made pursuant to the Plan (see "Purchase of Fund Shares" in
the Prospectus).
 
     The Distributor has informed the Fund that the entire fee payable by Class
A and a portion of the fees payable by each of Class B and Class C each year
pursuant to the Plan equal to 0.25% of such Class's average daily net assets are
currently each characterized as a "service fee" under the Rules of the
Association of the National Association of Securities Dealers, Inc. (of which
the Distributor is a member). The "service fee" is a payment made for personal
service and/or the maintenance of shareholder accounts. The remaining portion of
the Plan fees payable by a Class, if any, is characterized as an "asset-based
sales charge" as defined in the aforementioned Rules of the Association.
 
     The Plan was adopted by a majority vote of the Board of Trustees, including
all of the Trustees of the Fund who are not "interested persons" of the Fund (as
defined in the Act) and who have no direct or indirect financial interest in the
operation of the Plan (the "Independent 12b-1 Trustees"), cast in person at a
meeting called for the purpose of voting on the Plan, on April 30, 1998 and by
InterCapital, as sole shareholder of the Fund on April 30, 1998.
 
     Under the Plan and as required by Rule 12b-1, the Trustees receive and
review promptly after the end of each calendar quarter a written report provided
by the Distributor of the amounts expended by the Distributor under the Plan and
the purpose for which such expenditures were made.
 
     The Plan was adopted in order to permit the implementation of the Fund's
method of distribution. Under this distribution method the Fund offers four
Classes of shares, each with a different distribution arrangement as set forth
in the Prospectus.
 
   
     With respect to Class A shares, DWR compensates its Financial Advisors by
paying them, from proceeds of the front-end sales charge, commissions for the
sale of Class A shares, currently a gross sales credit of up to 5.0% of the
amount sold (except as provided in the following sentence) and an annual
residual commission, currently a residual of up to 0.25% of the current value of
the respective accounts for which they are the Financial Advisors or dealers of
record in all cases. On orders of $1 million or more (for which no sales charge
was paid) or net asset value purchases by employer-sponsored 401(k) and other
plans qualified under Section 401(a) of the Internal Revenue Code ("Qualified
Retirement Plans") for which Morgan Stanley Dean Witter Trust FSB ("MSDW Trust"
or "Transfer Agent") serves as Trustee or DWR's Retirement Plan Services serves
as recordkeeper pursuant to a written Recordkeeping Services Agreement, the
Investment Manager compensates DWR's Financial Advisors by paying them, from its
own funds, a gross sales credit of 1.0% of the amount sold.
    
 
   
     With respect to Class B shares, DWR compensates its Financial Advisors by
paying them, from its own funds, commissions for the sale of Class B shares,
currently a gross sales credit of up to 5.0% of the amount sold (except as
provided in the following sentence) and an annual residual commission, currently
a residual of up to 0.25% of the current value (not including reinvested
dividends or distributions) of the amount sold in all cases. In the case of
Class B shares purchased by Qualified Retirement Plans for which MSDW Trust
serves as Trustee or DWR's Retirement Plan Services serves as recordkeeper
pursuant to a written Recordkeeping Services Agreement, DWR compensates its
Financial Advisors by paying them, from its own funds, a gross sales credit of
3.0% of the amount sold.
    
 
   
     With respect to Class C shares, DWR compensates its Financial Advisors by
paying them, from its own funds, commissions for the sale of Class C shares,
currently a gross sales credit of up to 1.0% of
    
 
                                       32
<PAGE>   73
 
   
the amount sold and an annual residual commission, currently a residual of up to
1.0% of the current value of the respective accounts for which they are the
Financial Advisors of record.
    
 
   
     With respect to Class D shares other than shares held by participants in
InterCapital's mutual fund asset allocation program, the Investment Manager
compensates DWR's Financial Advisors by paying them, from its own funds,
commissions for the sale of Class D shares, currently a gross sales credit of up
to 1.0% of the amount sold. There is a chargeback of 100% of the amount paid if
the Class D shares are redeemed in the first year and a chargeback of 50% of the
amount paid if the Class D shares are redeemed in the second year after
purchase. The Investment Manager also compensates DWR's Financial Advisors by
paying them, from its own funds, an annual residual commission, currently a
residual of up to 0.10% of the current value of the respective accounts for
which they are the Financial Advisors of record (not including accounts of
participants in the InterCapital mutual fund asset allocation program).
    
 
   
     The gross sales credit is a charge which reflects commissions paid by DWR
to its Financial Advisors and DWR's Fund associated distribution-related
expenses, including sales compensation, and overhead and other branch office
distribution-related expenses including: (a) the expenses of operating DWR's
branch offices in connection with the sale of Fund shares, including lease
costs, the salaries and employee benefits of operations and sales support
personnel, utility costs, communications costs and the costs of stationery and
supplies; (b) the costs of client sales seminars; (c) travel expenses of mutual
fund sales coordinators to promote the sale of Fund shares; and (d) other
expenses relating to branch promotion of Fund share sales. The distribution fee
that the Distributor receives from the Fund under the Plan, in effect, offsets
distribution expenses incurred on behalf of the Fund and, in the case of Class B
shares, opportunity costs, such as the gross sales credit and an assumed
interest charge thereon ("carrying charge"). In the Distributor's reporting of
its distribution expenses to the Fund, in the case of Class B shares, such
assumed interest (computed at the "broker's call rate") has been calculated on
the gross sales credit as it is reduced by amounts received by the Distributor
under the Plan and any contingent deferred sales charges received by the
Distributor upon redemption of shares of the Fund. No other interest charge is
included as a distribution expense in the Distributor's calculation of its
distribution costs for this purpose. The broker's call rate is the interest rate
charged to securities brokers on loans secured by exchange-listed securities.
    
 
   
     The Fund is authorized to reimburse expenses incurred or to be incurred in
promoting the distribution of the Fund's Class A and Class C shares and in
servicing shareholder accounts. Reimbursement will be made through payments at
the end of each month. The amount of each monthly payment may in no event exceed
an amount equal to a payment at the annual rate of 0.25%, in the case of Class
A, and 1.0%, in the case of Class C, of the average net assets of the respective
Class during the month. No interest or other financing charges, if any, incurred
on any distribution expenses on behalf of Class A and Class C will be
reimbursable under the Plan. With respect to Class A, in the case of all
expenses other than expenses representing the service fee, and, with respect to
Class C, in the case of all expenses other than expenses representing a gross
sales credit or a residual to Morgan Stanley Dean Witter Financial Advisors and
other selected broker-dealer representatives, such amounts shall be determined
at the beginning of each calendar quarter by the Trustees, including a majority
of the Independent 12b-1 Trustees. Expenses representing the service fee (for
Class A) or a gross sales credit or a residual to Morgan Stanley Dean Witter
Financial Advisors and other selected broker-dealer representatives (for Class
C) may be reimbursed without prior determination. In the event that the
Distributor proposes that monies shall be reimbursed for other than such
expenses, then in making quarterly determinations of the amounts that may be
reimbursed by the Fund, the Distributor will provide and the Trustees will
review a quarterly budget of projected distribution expenses to be incurred on
behalf of the Fund, together with a report explaining the purposes and
anticipated benefits of incurring such expenses. The Trustees will determine
which particular expenses, and the portions thereof, that may be borne by the
Fund, and in making such a determination shall consider the scope of the
Distributor's commitment to promoting the distribution of the Fund's Class A and
Class C shares.
    
 
     With respect to Class B shares, at any given time, the expenses of
distributing shares of the Fund may be more or less than the total of (i) the
payments made by the Fund pursuant to the Plan and (ii) the
                                       33
<PAGE>   74
 
proceeds of contingent deferred sales charges paid by investors upon redemption
of shares. Because there is no requirement under the Plan that the Distributor
be reimbursed for all distribution expenses with respect to Class B shares or
any requirement that the Plan be continued from year to year, this excess amount
does not constitute a liability of the Fund. Although there is no legal
obligation for the Fund to pay expenses in excess of payments made to the
Distributor under the Plan and the proceeds of contingent deferred sales charges
paid by investors upon redemption of shares, if for any reason the Plan is
terminated, the Trustees will consider at that time the manner in which to treat
such expenses. Any cumulative expenses incurred, but not yet recovered through
future distribution fees or contingent deferred sales charges, may or may not be
recovered through future distribution fees or contingent deferred sales charges.
 
     No interested person of the Fund, nor any Trustee of the Fund who is not an
interested person of the Fund, as defined in the Act, has any direct or indirect
financial interest in the operation of the Plan except to the extent that the
Distributor, InterCapital, DWR, DWSC or certain of its employees may be deemed
to have such an interest as a result of benefits derived from the successful
operation of the Plan or as a result of receiving a portion of the amounts
expended thereunder by the Fund.
 
     Under its terms, the Plan has an initial term ending April 30, 1999, and it
will remain in effect from year to year thereafter, provided such continuance is
approved annually by a vote of the Trustees in the manner described above.
 
     The Plan may not be amended to increase materially the amount to be spent
for the services described therein without approval of the shareholders of the
affected Class or Classes of the Fund, and all material amendments of the Plan
must also be approved by the Trustees in the manner described above. The Plan
may be terminated at any time, without payment of any penalty, by vote of a
majority of the Independent 12b-1 Trustees or by a vote of a majority of the
outstanding voting securities of the Fund (as defined in the Act) on not more
than thirty days' written notice to any other party to the Plan. So long as the
Plan is in effect, the election and nomination of Independent Trustees shall be
committed to the discretion of the Independent Trustees.
DETERMINATION OF NET ASSET VALUE
- --------------------------------------------------------------------------------
 
   
     The net asset value per share for each Class of shares of the Fund is
determined once daily at 4:00 p.m., New York time (or, on days when the New York
Stock Exchange closes prior to 4:00 p.m., at such earlier time) on each day that
the New York Stock Exchange is open. The New York Stock Exchange currently
observes the following holidays: New Year's Day, Reverend Dr. Martin Luther
King, Jr. Day, Presidents' Day, Good Friday, Memorial Day, Independence Day,
Labor Day, Thanksgiving Day and Christmas Day.
    
 
     Short-term debt securities with remaining maturities of sixty days or less
at the time of purchase are valued at amortized cost, unless the Trustees
determine such does not reflect the securities' fair value, in which case these
securities will be valued at their fair value as determined by the Trustees.
Other short-term debt securities will be valued on a mark-to-market basis until
such time as they reach a remaining maturity of 60 days, whereupon they will be
valued at amortized cost using their value on the 61st day unless the Trustees
determine such does not reflect the securities' fair value, in which case these
securities will be valued at their fair value as determined by the Trustees.
Options are valued at the mean between their latest bid and asked prices.
Futures are valued at the last sale price as of the close of the commodities
exchange on which they trade unless the Trustees determine that such price does
not reflect their market value, in which case they will be valued at their fair
value as determined by the Trustees. All other securities and other assets are
valued at their fair value as determined in good faith under procedures
established by and under the supervision of the Trustees.
 
     Generally, trading in foreign securities, as well as corporate bonds,
United States government securities and money market instruments, is
substantially completed each day at various times prior to 4:00 p.m., New York
time. The values of such securities used in computing the net asset value of the
Fund's shares are determined as of such times. Foreign currency exchange rates
are also generally
 
                                       34
<PAGE>   75
 
determined prior to 4:00 p.m., New York time. Occasionally, events which may
affect the values of such securities and such exchange rates may occur between
the times at which they are determined and 4:00 p.m., New York time, and will
therefore not be reflected in the computation of the Fund's net asset value. If
events that may affect the value of such securities occur during such period,
then these securities may be valued at their fair value as determined in good
faith under procedures established by and under the supervision of the Trustees.
PURCHASE OF FUND SHARES
- --------------------------------------------------------------------------------
 
     As discussed in the Prospectus, the Fund offers four Classes of shares as
follows:
 
INITIAL SALES CHARGE ALTERNATIVE--CLASS A SHARES
 
     Class A shares are sold to investors with an initial sales charge that
declines to zero for larger purchases; however, Class A shares sold without an
initial sales charge are subject to a contingent deferred sales charge ("CDSC")
of 1.0% if redeemed within one year of purchase, except in the circumstances
discussed in the Prospectus.
 
   
     Right of Accumulation.  As discussed in the Prospectus, investors may
combine the current value of shares purchased in separate transactions for
purposes of benefitting from the reduced sales charges available for purchases
of shares of the Fund totalling at least $25,000 in net asset value. For
example, if any person or entity who qualifies for this privilege holds Class A
shares of the Fund and/or other Morgan Stanley Dean Witter Funds that are
multiple class funds ("Morgan Stanley Dean Witter Multi-Class Funds") or shares
of other Morgan Stanley Dean Witter Funds sold with a front-end sales charge
purchased at a price including a front-end sales charge having a current value
of $5,000, and purchases $20,000 of additional shares of the Fund, the sales
charge applicable to the $20,000 purchase would be 4.75% of the offering price.
    
 
     The Distributor must be notified by the selected broker-dealer or the
shareholder at the time a purchase order is placed that the purchase qualifies
for the reduced charge under the Right of Accumulation. Similar notification
must be made in writing by the selected broker-dealer or shareholder when such
an order is placed by mail. The reduced sales charge will not be granted if: (a)
such notification is not furnished at the time of the order; or (b) a review of
the records of the Distributor or Morgan Stanley Dean Witter Trust FSB (the
"Transfer Agent") fails to confirm the investor's represented holdings.
 
     Letter of Intent.  As discussed in the Prospectus, reduced sales charges
are available to investors who enter into a written Letter of Intent providing
for the purchase, within a thirteen-month period, of Class A shares of the Fund
from the Distributor or from a single Selected Broker-Dealer.
 
     A Letter of Intent permits an investor to establish a total investment goal
to be achieved by any number of purchases over a thirteen-month period. Each
purchase of Class A shares made during the period will receive the reduced sales
commission applicable to the amount represented by the goal, as if it were a
single purchase. A number of shares equal in value to 5% of the dollar amount of
the Letter of Intent will be held in escrow by the Transfer Agent, in the name
of the shareholder. The initial purchase under a Letter of Intent must be equal
to at least 5% of the stated investment goal.
 
     The Letter of Intent does not obligate the investor to purchase, nor the
Fund to sell, the indicated amount. In the event the Letter of Intent goal is
not achieved within the thirteen-month period, the investor is required to pay
the difference between the sales charge otherwise applicable to the purchases
made during this period and sales charges actually paid. Such payment may be
made directly to the Distributor or, if not paid, the Distributor is authorized
by the shareholder to liquidate a sufficient number of his or her escrowed
shares to obtain such difference.
 
     If the goal is exceeded and purchases pass the next sales charge level, the
sales charge on the entire amount of the purchase that results in passing that
level and on subsequent purchases will be subject to further reduced sales
charges in the same manner as set forth above under "Right of Accumulation," but
there will be no retroactive reduction of sales charges on previous purchases.
For
 
                                       35
<PAGE>   76
 
   
the purpose of determining whether the investor is entitled to a further reduced
sales charge applicable to purchases at or above a sales charge level which
exceeds the stated goal of a Letter of Intent, the cumulative current net asset
value of any shares owned by the investor in any other Morgan Stanley Dean
Witter Funds held by the shareholder which were previously purchased at a price
including a front-end sales charge (including shares of the Fund and other
Morgan Stanley Dean Witter Funds acquired in exchange for those shares, and
including in each case shares acquired through reinvestment of dividends and
distributions) will be added to the cost or net asset value of shares of the
Fund owned by the investor. However, shares of "Exchange Funds" (see
"Shareholder Services--Exchange Privilege") and the purchase of shares of other
Morgan Stanley Dean Witter Funds will not be included in determining whether the
stated goal of a Letter of Intent has been reached.
    
 
     At any time while a Letter of Intent is in effect, a shareholder may, by
written notice to the Distributor, increase the amount of the stated goal. In
that event, only shares purchased during the previous 90-day period and still
owned by the shareholder will be included in the new sales charge reduction. The
5% escrow and minimum purchase requirements will be applicable to the new stated
goal. Investors electing to purchase shares of the Fund pursuant to a Letter of
Intent should carefully read such Letter of Intent.
 
CONTINGENT DEFERRED SALES CHARGE ALTERNATIVE--CLASS B SHARES
 
   
     Class B shares are sold without an initial sales charge but are subject to
a CDSC payable upon most redemptions within six years after purchase. As stated
in the Prospectus, a CDSC will be imposed on any redemption by an investor if
after such redemption the current value of the investor's Class B shares of the
Fund is less than the dollar amount of all payments by the shareholder for the
purchase of Class B shares during the preceding six years (or, in the case of
shares held by certain Qualified Retirement Plans, three years). However, no
CDSC will be imposed to the extent that the net asset value of the shares
redeemed does not exceed: (a) the current net asset value of shares purchased
more than six years (or, in the case of shares held by certain Qualified
Retirement Plans three years) prior to the redemption, plus (b) the current net
asset value of shares purchased through reinvestment of dividends or
distributions of the Fund or another Morgan Stanley Dean Witter Fund (see
"Shareholder Services--Targeted Dividends"), plus (c) the current net asset
value of shares acquired in exchange for (i) shares of Morgan Stanley Dean
Witter front-end sales charge funds, or (ii) shares of other Morgan Stanley Dean
Witter Funds for which shares of front-end sales charge funds have been
exchanged (see "Shareholder Services--Exchange Privilege"), plus (d) increases
in the net asset value of the investor's shares above the total amount of
payments for the purchase of Fund shares made during the preceding six (three)
years. The CDSC will be paid to the Distributor.
    
 
   
     In determining the applicability of the CDSC to each redemption, the amount
which represents an increase in the net asset value of the investor's shares
above the amount of the total payments for the purchase of shares within the
last six years (or, in the case of shares held by certain Qualified Retirement
Plans, three years) will be redeemed first. In the event the redemption amount
exceeds such increase in value, the next portion of the amount redeemed will be
the amount which represents the net asset value of the investor's shares
purchased more than six (three) years prior to the redemption and/ or shares
purchased through reinvestment of dividends or distributions and/or shares
acquired in exchange for shares of Morgan Stanley Dean Witter front-end sales
charge funds, or for shares of other Morgan Stanley Dean Witter funds for which
shares of front-end sales charge funds have been exchanged. A portion of the
amount redeemed which exceeds an amount which represents both such increase in
value and the value of shares purchased more than six years (or, in the case of
shares held by certain Qualified Retirement Plans, three years) prior to the
redemption and/or shares purchased through reinvestment of dividends or
distributions and/or shares acquired in the above-described exchanges will be
subject to a CDSC.
    
 
     The amount of the CDSC, if any, will vary depending on the number of years
from the time of payment for the purchase of Class B shares of the Fund until
the time of redemption of such shares. For purposes of determining the number of
years from the time of any payment for the purchase of shares, all payments made
during a month will be aggregated and deemed to have been made on the last day
 
                                       36
<PAGE>   77
 
of the month. The following table sets forth the rates of the CDSC applicable to
most Class B shares of the Fund:
 
<TABLE>
<CAPTION>
                         YEAR SINCE
                          PURCHASE                              CDSC AS A PERCENTAGE
                        PAYMENT MADE                             OF AMOUNT REDEEMED
                        ------------                            --------------------
<S>                                                             <C>
First.......................................................        5.0%
Second......................................................        4.0%
Third.......................................................        3.0%
Fourth......................................................        2.0%
Fifth.......................................................        2.0%
Sixth.......................................................        1.0%
Seventh and thereafter......................................        None
</TABLE>
 
     The following table sets forth the rates of the CDSC applicable to Class B
shares of the Fund purchased by Qualified Retirement Plans for which MSDW Trust
serves as Trustee or DWR's Retirement Plan Services serves as recordkeeper
pursuant to a written Recordkeeping Services Agreement:
 
<TABLE>
<CAPTION>
                         YEAR SINCE
                          PURCHASE                              CDSC AS A PERCENTAGE
                        PAYMENT MADE                             OF AMOUNT REDEEMED
                        ------------                            --------------------
<S>                                                             <C>
First.......................................................        2.0%
Second......................................................        2.0%
Third.......................................................        1.0%
Fourth and thereafter.......................................        None
</TABLE>
 
     In determining the rate of the CDSC, it will be assumed that a redemption
is made of shares held by the investor for the longest period of time within the
applicable six-year or three-year period. This will result in any such CDSC
being imposed at the lowest possible rate. The CDSC will be imposed, in
accordance with the table shown above, on any redemptions within six years (or,
in the case of shares held by certain Qualified Retirement Plans, three years)
of purchase which are in excess of these amounts and which redemptions do not
qualify for waiver of the CDSC, as described in the Prospectus.
 
LEVEL LOAD ALTERNATIVE--CLASS C SHARES
 
     Class C shares are sold without a sales charge but are subject to a CDSC of
1.0% on most redemptions made within one year after purchase, except in the
circumstances discussed in the Prospectus.
 
NO LOAD ALTERNATIVE--CLASS D SHARES
 
     Class D shares are offered without any sales charge on purchase or
redemption. Class D shares are offered only to those persons meeting the
qualifications set forth in the Prospectus.
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
     Upon the purchase of shares of the Fund, a Shareholder Investment Account
is opened for the investor on the books of the Fund and maintained by the
Transfer Agent. This is an open account in which shares owned by the investor
are credited by the Transfer Agent in lieu of issuance of a share certificate.
If a share certificate is desired, it must be requested in writing for each
transaction. Certificates are issued only for full shares and may be redeposited
in the account at any time. There is no charge to the investor for issuance of a
certificate. Whenever a shareholder instituted transaction takes place in the
Shareholder Investment Account, the shareholder will be mailed a confirmation of
the transaction from the Fund or from DWR or other selected broker-dealer.
 
     Automatic Investment of Dividends and Distributions.  As stated in the
Prospectus, all income dividends and capital gains distributions are
automatically paid in full and fractional shares of the applicable Class of the
Fund, unless the shareholder requests that they be paid in cash. Each purchase
 
                                       37
<PAGE>   78
 
of shares of the Fund is made upon the condition that the Transfer Agent is
thereby automatically appointed as agent of the investor to receive all
dividends and capital gains distributions on shares owned by the investor. Such
dividends and distributions will be paid, at the net asset value per share in
shares of the applicable Class of the Fund (or in cash if the shareholder so
requests) as of the close of business on the record date. At any time an
investor may request the Transfer Agent, in writing, to have subsequent
dividends and/or capital gains distributions paid to him or her in cash rather
than shares. To assure sufficient time to process the change, such request
should be received by the Transfer Agent at least five business days prior to
the record date of the dividend or distribution. In the case of recently
purchased shares for which registration instructions have not been received on
the record date, cash payments will be made to DWR or other selected
broker-dealer, and will be forwarded to the shareholder, upon the receipt of
proper instructions. It has been and remains the Fund's policy and practice
that, if checks for dividends or distributions paid in cash remain uncashed, no
interest will accrue on amounts represented by such uncashed checks.
 
   
     Targeted Dividends (SM).  In states where it is legally permissible,
shareholders may also have all income dividends and capital gains distributions
automatically invested in shares of any Class of an open-end Morgan Stanley Dean
Witter Fund other than Morgan Stanley Dean Witter Equity Fund or in another
Class of Morgan Stanley Dean Witter Equity Fund. Such investment will be made as
described above for automatic investment in shares of the applicable Class of
the Fund, at the net asset value per share of the selected Morgan Stanley Dean
Witter Fund as of the close of business on the payment date of the dividend or
distribution and will begin to earn dividends, if any, in the selected Morgan
Stanley Dean Witter Fund the next business day. To participate in the Targeted
Dividends program, shareholders should contact their Morgan Stanley Dean Witter
Financial Advisor or other selected broker-dealer representative or the Transfer
Agent. Shareholders of the Fund must be shareholders of the selected Class of
the Morgan Stanley Dean Witter Fund targeted to receive investments from
dividends at the time they enter the Targeted Dividends program. Investors
should review the prospectus of the targeted Morgan Stanley Dean Witter Fund
before entering the program.
    
 
   
     EasyInvest (SM).  Shareholders may subscribe to EasyInvest, an automatic
purchase plan which provides for any amount from $100 to $5,000 to be
transferred automatically from a checking or savings account or following
redemption of shares of a Morgan Stanley Dean Witter money market fund, on a
semi-monthly, monthly or quarterly basis, to the Transfer Agent for investment
in shares of the Fund. Shares purchased through EasyInvest will be added to the
shareholder's existing account at the net asset value calculated the same
business day the transfer of funds is effected. Shares of the Morgan Stanley
Dean Witter Money Market Funds redeemed in connection with EasyInvest are
redeemed on the business day preceding transfer of funds (subject to any
applicable sales charges). For further information or to subscribe to
EasyInvest, shareholders should contact their Morgan Stanley Dean Witter
Financial Advisor or other selected broker-dealer representative or the Transfer
Agent.
    
 
     Investment of Dividends or Distributions Received in Cash.  As discussed in
the Prospectus, any shareholder who receives a cash payment representing a
dividend or distribution may invest such dividend or distribution in shares of
the applicable Class at the net asset value next determined after receipt by the
Transfer Agent, without the imposition of a CDSC upon redemption, by returning
the check or the proceeds to the Transfer Agent within 30 days after the payment
date. If the shareholder returns the proceeds of a dividend or distribution,
such funds must be accompanied by a signed statement indicating that the
proceeds constitute a dividend or distribution to be invested. Such investment
will be made at the net asset value per share next determined after receipt of
the check or proceeds by the Transfer Agent.
 
     Systematic Withdrawal Plan.  As discussed in the Prospectus, a withdrawal
plan (the "Withdrawal Plan") is available for shareholders who own or purchase
shares of the Fund having a minimum value of $10,000 based upon the then current
net asset value. The Withdrawal Plan provides for monthly or quarterly (March,
June, September and December) checks in any dollar amount, not less than $25, or
in any whole percentage of the account balance, on an annualized basis. Any
applicable CDSC will be imposed on shares redeemed under the Withdrawal Plan
(see "Purchase of Fund Shares"). Therefore, any shareholder participating in the
Withdrawal Plan will have sufficient shares redeemed from his or
                                       38
<PAGE>   79
 
her account so that the proceeds (net of any applicable CDSC) to the shareholder
will be the designated monthly or quarterly amount.
 
     The Transfer Agent acts as agent for the shareholder in tendering to the
Fund for redemption sufficient full and fractional shares to provide the amount
of the periodic withdrawal payment designated in the application. The shares
will be redeemed at their net asset value determined, at the shareholder's
option, on the tenth or twenty-fifth day (or next following business day) of the
relevant month or quarter and normally a check for the proceeds will be mailed
by the Transfer Agent within five business days after the date of redemption.
The Withdrawal Plan may be terminated at any time by the Fund.
 
     Withdrawal Plan payments should not be considered as dividends, yields or
income. If periodic Withdrawal Plan payments continuously exceed net investment
income and net capital gains, the shareholder's original investment will be
correspondingly reduced and ultimately exhausted.
 
     Each withdrawal constitutes a redemption of shares and any gain or loss
realized must be recognized for federal income tax purposes. Although the
shareholder may make additional investments of $2,500 or more under the
Withdrawal Plan, withdrawals made concurrently with purchases of additional
shares may be inadvisable because of sales charges which may be applicable to
purchases or redemptions of shares (see "Purchase of Fund Shares").
 
   
     Any shareholder who wishes to have payments under the Withdrawal Plan made
to a third party or sent to an address other than the one listed on the account
must send complete written instructions to the Transfer Agent to enroll in the
Withdrawal Plan. The shareholder's signature on such instructions must be
guaranteed by a commercial bank or trust company (not a savings bank), or by a
member of a national securities exchange. A shareholder may, at any time, change
the amount and interval of withdrawal payments through his or her Morgan Stanley
Dean Witter Financial Advisor or other selected broker-dealer representative or
by written notification to the Transfer Agent. In addition, the party and/or the
address to which checks are mailed may be changed by written notification to the
Transfer Agent, with signature guarantees required in the manner described
above. The shareholder may also terminate the Withdrawal Plan at any time by
written notice to the Transfer Agent. In the event of such termination, the
account will be continued as a regular shareholder investment account.
    
 
     Direct Investments through Transfer Agent.  As discussed in the Prospectus,
a shareholders may make additional investments in any Class of shares of the
Fund for which they qualify at any time by sending a check in any amount, not
less than $100, payable to Morgan Stanley Dean Witter Equity Fund, and
indicating the selected Class, directly to the Fund's Transfer Agent. In the
case of Class A shares, after deduction of any applicable sales charge, the
balance will be applied to the purchase of Fund shares, and, in the case of
shares of the other Classes, the entire amount will be applied to the purchase
of Fund shares, at the net asset value per share next computed after receipt of
the check or purchase payment by the Transfer Agent. The shares so purchased
will be credited to the investor's account.
 
EXCHANGE PRIVILEGE
 
   
     As discussed in the Prospectus, the Fund makes available to its
shareholders an Exchange Privilege whereby shareholders of each Class of shares
of the Fund may exchange their shares for shares of the same Class of shares of
any other Morgan Stanley Dean Witter Multi-Class Fund without the imposition of
any exchange fee. Shares may also be exchanged for shares of any of the
following funds: Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust,
Morgan Stanley Dean Witter Limited Term Municipal Trust, Morgan Stanley Dean
Witter Short-Term Bond Fund, Morgan Stanley Dean Witter Intermediate Term U.S.
Treasury Trust and five Morgan Stanley Dean Witter Funds which are money market
funds (the foregoing nine non-CDSC funds are referred to hereinafter as
"Exchange Funds"). Class A shares may also be exchanged for shares of Morgan
Stanley Dean Witter Multi-State Municipal Series Trust and Morgan Stanley Dean
Witter Hawaii Municipal Trust, which are Morgan Stanley Dean Witter Funds sold
with a front-end sales charge ("FSC Funds"). Class B shares may also be
exchanged for shares of Morgan Stanley Dean Witter Global Short-Term Income Fund
Inc. ("Global Short-Term"), which is a Morgan Stanley Dean Witter Fund offered
with a CDSC. Exchanges may be
    
 
                                       39
<PAGE>   80
 
made after the shares of the Fund acquired by purchase (not by exchange or
dividend reinvestment) have been held for thirty days. There is no waiting
period for exchanges of shares acquired by exchange or dividend reinvestment. An
exchange will be treated for federal income tax purposes the same as a
repurchase or redemption of shares, on which the shareholder may realize a
capital gain or loss.
 
     Any new account established through the Exchange Privilege will have the
same registration and cash dividend or dividend reinvestment plan as the present
account, unless the Transfer Agent receives written notification to the
contrary. For telephone exchanges, the exact registration of the existing
account and the account number must be provided.
 
     Any shares held in certificate form cannot be exchanged but must be
forwarded to the Transfer Agent and deposited into the shareholder's account
before being eligible for exchange. (Certificates mailed in for deposit should
not be endorsed.)
 
   
     As described below, and in the Prospectus under the caption "Purchase of
Fund Shares," a CDSC may be imposed upon a redemption, depending on a number of
factors, including the number of years from the time of purchase until the time
of redemption or exchange ("holding period"). When shares of a Morgan Stanley
Dean Witter Multi-Class Fund or Global Short-Term are exchanged for shares of an
Exchange Fund, the exchange is executed at no charge to the shareholder without
the imposition of the CDSC at the time of the exchange. During the period of
time the shareholder remains in the Exchange Fund (calculated from the last day
of the month in which the Exchange Fund shares were acquired), the holding
period or "year since purchase payment made" is frozen. When shares are redeemed
out of the Exchange Fund, they will be subject to a CDSC which would be based
upon the period of time the shareholder held shares in a Morgan Stanley Dean
Witter Multi-Class Fund or in Global Short-Term. However, in the case of shares
exchanged for shares of an Exchange Fund on or after April 23, 1990, upon a
redemption of shares which results in a CDSC being imposed, a credit (not to
exceed the amount of the CDSC) will be given in an amount equal to the Exchange
Fund 12b-1 distribution fees incurred on or after that date which are
attributable to those shares. Shareholders acquiring shares of the Exchange Fund
pursuant to this exchange privilege may exchange those shares back into a Morgan
Stanley Dean Witter Multi-Class Fund or Global Short-Term from the money market
fund, with no CDSC being imposed on such exchange. The investment period
previously frozen when shares were first exchanged for shares of the Exchange
Fund resumes on the last day of the month in which shares of a Morgan Stanley
Dean Witter Multi-Class Fund or Global Short-Term are reacquired. A CDSC is
imposed only upon an ultimate redemption, based upon the time (calculated as
described above) the shareholder was invested in a Morgan Stanley Dean Witter
Multi-Class Fund or in Global Short-Term. In the case of exchanges of Class A
shares which are subject to a CDSC, the holding period also includes the time
(calculated as described above) the shareholder was invested in a FSC Fund.
    
 
   
     When shares initially purchased in a Morgan Stanley Dean Witter Multi-Class
Fund or in Global Short-Term are exchanged for shares of a Morgan Stanley Dean
Witter Multi-Class Fund, shares of Global Short-Term, shares of a FSC Fund, or
for shares of an Exchange Fund, the date of purchase of the shares of the fund
exchanged into, for purposes of the CDSC upon redemption, will be the last day
of the month in which the shares being exchanged were originally purchased. In
allocating the purchase payments between funds for purposes of the CDSC, the
amount which represents the current net asset value of shares at the time of the
exchange which were (i) purchased more than one, three or six years (depending
on the CDSC schedule applicable to the shares) prior to the exchange, (ii)
originally acquired through reinvestment of dividends or distributions and (iii)
acquired in exchange for shares of FSC Funds, or for shares of other Morgan
Stanley Dean Witter Funds for which shares of FSC Funds have been exchanged (all
such shares called "Free Shares"), will be exchanged first. Shares of Morgan
Stanley Dean Witter Strategist Fund acquired prior to November 8, 1989, shares
of Morgan Stanley Dean Witter American Value Fund acquired prior to April 30,
1984, and shares of Morgan Stanley Dean Witter Dividend Growth Securities Inc.
and Morgan Stanley Dean Witter Natural Resource Development Securities Inc.
acquired prior to July 2, 1984, will be the first Free Shares to be exchanged.
After an exchange, all dividends earned on shares in an Exchange Fund will be
considered Free Shares. If the exchanged amount exceeds the value of such Free
Shares, an exchange is made, on a block-by-block basis, of non-Free Shares held
for the longest period of time (except that, with respect to Class B
    
                                       40
<PAGE>   81
 
shares, if shares held for identical periods of time but subject to different
CDSC schedules are held in the same Exchange Privilege account, the shares of
that block that are subject to a lower CDSC rate will be exchanged prior to the
shares of that block that are subject to a higher CDSC rate). Shares equal to
any appreciation in the value of non-Free Shares exchanged will be treated as
Free Shares, and the amount of the purchase payments for the non-Free Shares of
the fund exchanged into will be equal to the lesser of (a) the purchase payments
for, or (b) the current net asset value of, the exchanged non-Free Shares. If an
exchange between funds would result in exchange of only part of a particular
block of non-Free Shares, then shares equal to any appreciation in the value of
the block (up to the amount of the exchange) will be treated as Free Shares and
exchanged first, and the purchase payment for that block will be allocated on a
pro-rata basis between the non-Free Shares of that block to be retained and the
non-Free Shares to be exchanged. The prorated amount of such purchase payment
attributable to the retained non-Free Shares will remain as the purchase payment
for such shares, and the amount of purchase payment for the exchanged non-Free
Shares will be equal to the lesser of (a) the prorated amount of the purchase
payment for, or (b) the current net asset value of, those exchanged non-Free
Shares. Based upon the procedures described in the Prospectus under the caption
"Purchase of Fund Shares," any applicable CDSC will be imposed upon the ultimate
redemption of shares of any fund, regardless of the number of exchanges since
those shares were originally purchased.
 
     With respect to the redemption or repurchase of shares of the Fund, the
application of proceeds to the purchase of new shares in the Fund or any other
of the funds and the general administration of the Exchange Privilege, the
Transfer Agent acts as agent for the Distributor and for the shareholder's
selected broker-dealer, if any, in the performance of such functions. With
respect to exchanges, redemptions or repurchases, the Transfer Agent shall be
liable for its own negligence and not for the default or negligence of its
correspondents or for losses in transit. The Fund shall not be liable for any
default or negligence of the Transfer Agent, the Distributor or any selected
broker-dealer.
 
     The Distributor and any selected broker-dealer have authorized and
appointed the Transfer Agent to act as their agent in connection with the
application of proceeds of any redemption of Fund shares to the purchase of
shares of any other fund and the general administration of the Exchange
Privilege. No commission or discounts will be paid to the Distributor or any
selected broker-dealer for any transactions pursuant to this Exchange Privilege.
 
   
     Exchanges are subject to the minimum investment requirement and any other
conditions imposed by each fund. (The minimum initial investment for the
Exchange Privilege account of each Class is $5,000 for Morgan Stanley Dean
Witter Liquid Asset Fund Inc., Morgan Stanley Dean Witter New York Municipal
Money Market Trust, Morgan Stanley Dean Witter Tax-Free Daily Income Trust and
Morgan Stanley Dean Witter California Tax-Free Daily Income Trust although those
funds may, at their discretion, accept initial investments of as low as $1,000.
The minimum initial investment for the Exchange Privilege account of each Class
is $10,000 for Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust,
although that fund, in its discretion, may accept initial purchases of as low as
$5,000. The minimum investment for the Exchange Privilege account of each Class
is $5,000 for Morgan Stanley Dean Witter Special Value Fund. The minimum initial
investment for the Exchange Privilege account of each Class for all other Morgan
Stanley Dean Witter Funds for which the Exchange Privilege is available is
$1,000.) Upon exchange into an Exchange Fund, the shares of that fund will be
held in a special Exchange Privilege Account separately from accounts of those
shareholders who have acquired their shares directly from that fund. As a
result, certain services normally available to shareholders of money market
funds, including the check writing feature, will not be available for funds held
in that account.
    
 
   
     The Fund and each of the other Morgan Stanley Dean Witter Funds may limit
the number of times this Exchange Privilege may be exercised by any investor
within a specified period of time. Also, the Exchange Privilege may be
terminated or revised at any time by the Fund and/or any of the Morgan Stanley
Dean Witter Funds for which shares of the Fund have been exchanged, upon such
notice as may be required by applicable regulatory agencies (presently sixty
days for termination or material revision), provided that six months' prior
written notice of termination will be given to the shareholders who hold shares
of Exchange Funds, pursuant to the Exchange Privilege, and provided further that
the Exchange Privilege may be terminated or materially revised without notice at
times (a) when the New
    
                                       41
<PAGE>   82
 
York Stock Exchange is closed for other than customary weekends and holidays,
(b) when trading on that Exchange is restricted, (c) when an emergency exists as
a result of which disposal by the Fund of securities owned by it is not
reasonably practicable or it is not reasonably practicable for the Fund fairly
to determine the value of its net assets, (d) during any other period when the
Securities and Exchange Commission by order so permits (provided that applicable
rules and regulations of the Securities and Exchange Commission shall govern as
to whether the conditions prescribed in (b) or (c) exist) or (e) if the Fund
would be unable to invest amounts effectively in accordance with its investment
objective(s), policies and restrictions.
 
   
     For further information regarding the Exchange Privilege, shareholders
should contact their Morgan Stanley Dean Witter Financial Advisor or other
selected broker-dealer representative or the Transfer Agent.
    
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
     Redemption.  As stated in the Prospectus, shares of each Class of the Fund
can be redeemed for cash at any time at the net asset value per share next
determined; however, such redemption proceeds will be reduced by the amount of
any applicable CDSC. If shares are held in a shareholder's account without a
share certificate, a written request for redemption to the Fund's Transfer Agent
at P.O. Box 983, Jersey City, NJ 07303 is required. If certificates are held by
the shareholder, the shares may be redeemed by surrendering the certificates
with a written request for redemption. The share certificate, or an accompanying
stock power, and the request for redemption, must be signed by the shareholder
or shareholders exactly as the shares are registered. Each request for
redemption, whether or not accompanied by a share certificate, must be sent to
the Fund's Transfer Agent, which will redeem the shares at their net asset value
next computed (see "Purchase of Fund Shares") after it receives the request, and
certificate, if any, in good order. Any redemption request received after such
computation will be redeemed at the next determined net asset value. The term
"good order" means that the share certificate, if any, and request for
redemption are properly signed, accompanied by any documentation required by the
Transfer Agent, and bear signature guarantees when required by the Fund or the
Transfer Agent. If redemption is requested by a corporation, partnership, trust
or fiduciary, the Transfer Agent may require that written evidence of authority
acceptable to the Transfer Agent be submitted before such request is accepted.
 
     Whether certificates are held by the shareholder or shares are held in a
shareholder's account, if the proceeds are to be paid to any person other than
the record owner, or if the proceeds are to be paid to a corporation (other than
the Distributor or a selected broker-dealer for the account of the shareholder),
partnership, trust or fiduciary, or sent to the shareholder at an address other
than the registered address, signatures must be guaranteed by an eligible
guarantor acceptable to the Transfer Agent (shareholders should contact the
Transfer Agent for a determination as to whether a particular institution is
such an eligible guarantor). A stock power may be obtained from any dealer or
commercial bank. The Fund may change the signature guarantee requirements from
time to time upon notice to shareholders, which may be by means of a supplement
to the prospectus or a new prospectus.
 
     Repurchase.  As stated in the Prospectus, DWR and other selected
broker-dealers are authorized to repurchase shares represented by a share
certificate which is delivered to any of their offices. Shares held in a
shareholder's account without a share certificate may also be repurchased by DWR
and other selected broker-dealers upon the telephonic request of the
shareholder. The repurchase price is the net asset value next computed after
such purchase order is received by DWR or other selected broker-dealer reduced
by any applicable CDSC.
 
   
     Payment for Shares Redeemed or Repurchased.  As discussed in the
Prospectus, payment for shares of any Class presented for repurchase or
redemption will be made by check within seven days after receipt by the Transfer
Agent of the certificate and/or written request in good order. Such payment may
be postponed or the right of redemption suspended at times (a) when the New York
Stock Exchange is closed for other than customary weekends and holidays, (b)
when trading on that Exchange is restricted, (c) when an emergency exists as a
result of which disposal by the Fund of
    
 
                                       42
<PAGE>   83
 
   
securities owned by it is not reasonably practicable or it is not reasonably
practicable for the Fund fairly to determine the value of its net assets, or (d)
during any other period when the Securities and Exchange Commission by order so
permits; provided that applicable rules and regulations of the Securities and
Exchange Commission shall govern as to whether the conditions prescribed in (b)
or (c) exist. If the shares to be redeemed have recently been purchased by check
(including a certified or bank cashier's check), payment of the redemption
proceeds may be delayed for the minimum time needed to verify that the check
used for investment has been honored (not more than fifteen days from the time
of receipt of the check by the Transfer Agent). It has been and remains the
Fund's policy and practice that, if checks for redemption proceeds remain
uncashed, no interest will accrue on amounts represented by such uncashed
checks. Shareholders maintaining margin accounts with DWR or another selected
broker-dealer are referred to their Morgan Stanley Dean Witter Financial Advisor
or other selected broker-dealer representative regarding restrictions on
redemption of shares of the Fund pledged in the margin account.
    
 
     Transfers of Shares.  In the event a shareholder requests a transfer of any
shares to a new registration, such shares will be transferred without sales
charge at the time of transfer. With regard to the status of shares which are
either subject to the CDSC or free of such charge (and with regard to the length
of time shares subject to the charge have been held), any transfer involving
less than all of the shares in an account will be made on a pro rata basis (that
is, by transferring shares in the same proportion that the transferred shares
bear to the total shares in the account immediately prior to the transfer). The
transferred shares will continue to be subject to any applicable CDSC as if they
had not been so transferred.
 
     Reinstatement Privilege.  As discussed in the Prospectus, a shareholder who
has had his or her shares redeemed or repurchased and has not previously
exercised this reinstatement privilege may within 35 days after the date of
redemption or repurchase reinstate any portion or all of the proceeds of such
redemption or repurchase in shares of the Fund in the same Class at the net
asset value next determined after a reinstatement request, together with such
proceeds, is received by the Transfer Agent.
 
     Exercise of the reinstatement privilege will not affect the federal income
tax treatment of any gain or loss realized upon the redemption or repurchase,
except that if the redemption or repurchase resulted in a loss and reinstatement
is made in shares of the Fund, some or all of the loss, depending on the amount
reinstated, will not be allowed as a deduction for federal income tax purposes,
but will be applied to adjust the cost basis of the shares acquired upon
reinstatement.
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
     As discussed in the Prospectus, the Fund will determine either to
distribute or to retain all or part of any net long-term capital gains in any
year for reinvestment. If any such gains are retained, the Fund will pay federal
income tax thereon, and, if the Fund makes an election, the shareholders would
include such undistributed gains in their income and shareholders will be able
to claim their share of the tax paid by the Fund as a credit against their
individual federal income tax.
 
     Gains or losses on sales of securities by the Fund will generally be
long-term capital gains or losses if the securities have been held by the Fund
for more than twelve months. Gains or losses on the sale of securities held for
twelve months or less will be generally short-term gains or losses.
 
     Distributions of net long-term capital gains, if any, are taxable to
shareholders as long-term capital gains regardless of how long a shareholder has
held the Fund's shares and regardless of whether the distribution is received in
additional shares or in cash. Capital gains distributions are not eligible for
the dividends received deduction. The Treasury has announced that it will issue
regulations or other guidance to permit shareholders to take into account their
proportionate share of the Fund's capital gains distributions that will be
subject to a reduced rate under the Taxpayer Relief Act of 1997. The Taxpayer
Relief Act reduces the maximum tax on long-term capital gains from 28% to 20%;
however, it also lengthens the required holding period to obtain the lower rate
from more than 12 months to more
 
                                       43
<PAGE>   84
 
than 18 months. The lower rates do not apply to collectibles and certain other
assets. Additionally, the maximum capital gain rate for assets that are held
more than 5 years and that are acquired after December 31, 2000 is 18%.
 
     The Fund intends to remain qualified as a regulated investment company
under Subchapter M of the Internal Revenue Code of 1986 (the "Code"). As such,
the Fund will not be subject to federal income tax on its net investment income
and capital gains, if any, realized during any fiscal year in which it
distributes such income and capital gains to its shareholders.
 
     Any dividend or capital gains distribution received by a shareholder from
any investment company will have the effect of reducing the net asset value of
the shareholder's stock in that company by the exact amount of the dividend or
capital gains distribution. Furthermore, capital gains distributions and
dividends are subject to federal income taxes. If the net asset value of the
shares should be reduced below a shareholder's cost as a result of the payment
of dividends or the distribution of realized net long-term capital gains, such
payment or distribution would be in part a return of the shareholder's
investment to the extent of such reduction below the shareholder's cost, but
nonetheless would be fully taxable. Therefore, an investor should consider the
tax implications of purchasing Fund shares immediately prior to a distribution
record date.
 
     Dividends, interest and capital gains received by the Fund may give rise to
withholding and other taxes imposed by foreign countries. Tax conventions
between certain countries and the United States may reduce or eliminate such
taxes. Investors may be entitled to claim United States foreign tax credits with
respect to such taxes, subject to certain provisions and limitations contained
in the Code. If more than 50% of the Fund's total assets at the close of its
fiscal year consist of securities of foreign corporations, the Fund would be
eligible and would determine whether or not to file an election with the
Internal Revenue Service pursuant to which shareholders of the Fund will be
required to include their respective pro rata portions of such withholding taxes
in their United States income tax returns as gross income, treat such respective
pro rata portions as taxes paid by them, and deduct such respective pro rata
portions in computing their taxable income or, alternatively, use them as
foreign tax credits against their United States income taxes. If the Fund does
elect to file the election with the Internal Revenue Service, the Fund will
report annually to its shareholders the amount per share of such withholding.
 
     Special Rules for Certain Foreign Currency Transactions.  In general, gains
from foreign currencies and from foreign currency options, foreign currency
futures and forward foreign exchange contracts relating to investments in stock,
securities or foreign currencies are currently considered to be qualifying
income for purposes of determining whether the Fund qualifies as a regulated
investment company. It is currently unclear, however, who will be treated as the
issuer of certain foreign currency instruments or how foreign currency options,
futures, or forward foreign currency contracts will be valued for purposes of
the regulated investment company diversification requirements applicable to the
Fund.
 
     Under Code Section 988, special rules are provided for certain transactions
in a foreign currency other than the taxpayer's functional currency (i.e.,
unless certain special rules apply, currencies other than the U.S. dollar). In
general, foreign currency gains or losses from forward contracts, from futures
contracts that are not "regulated futures contracts", and from unlisted options
will be treated as ordinary income or loss under Code Section 988. Also, certain
foreign exchange gains or losses derived with respect to foreign fixed-income
securities are also subject to Section 988 treatment. In general, therefore,
Code Section 988 gains or losses will increase or decrease the amount of the
Fund's investment company taxable income available to be distributed to
shareholders as ordinary income, rather than increasing or decreasing the amount
of the Fund's net capital gain. Additionally, if Code Section 988 losses exceed
other investment company taxable income during a taxable year, the Fund would
not be able to make any ordinary dividend distributions.
 
     The Fund may be subject to taxes in foreign countries in which it invests.
In addition, if the Fund were deemed to be a resident of the United Kingdom for
United Kingdom tax purposes or if the Fund were treated as being engaged in a
trading activity through an agent in the United Kingdom, there is a risk that
the United Kingdom would attempt to tax all or a portion of the Fund's gains or
income. In light
 
                                       44
<PAGE>   85
 
of the structure of the Fund and the terms and conditions of the Investment
Management and Sub-Advisory Agreements, it is believed that any such risk is
minimal.
 
     If the Fund invests in an entity which is classified as a "passive foreign
investment company" ("PFIC") for U.S. tax purposes, the application of certain
technical tax provisions applying to such companies could result in the
imposition of federal income tax with respect to such investments at the Fund
level which could not be eliminated by distributions to shareholders. The
Taxpayer Relief Act of 1997 establishes a mark-to-market regime which allows
taxpayers investing in PFIC's to avoid most, if not all of the difficulties
posed by the PFIC rules. In any event, it is not anticipated that any taxes on
the Fund with respect to investments in PFIC's would be significant.
 
     Shareholders are urged to consult their attorneys or tax advisers regarding
specific questions as to federal, state or local taxes.
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
     As discussed in the Prospectus, from time to time the Fund may quote its
"total return" in advertisements and sales literature. These figures are
computed for Class A, Class B, Class C, and Class D shares. The Fund's "average
annual total return" represents an annualization of the Fund's total return over
a particular period and is computed by finding the annual percentage rate which
will result in the ending redeemable value of a hypothetical $1,000 investment
made at the beginning of a one, five or ten year period, or for the period from
the date of commencement of the Fund's operations, if shorter than any of the
foregoing. The ending redeemable value is reduced by any CDSC at the end of the
one, five or ten year or other period. For the purpose of this calculation, it
is assumed that all dividends and distributions are reinvested. The formula for
computing the average annual total return involves a percentage obtained by
dividing the ending redeemable value by the amount of the initial investment,
taking a root of the quotient (where the root is equivalent to the number of
years in the period) and subtracting 1 from the result.
 
     In addition to the foregoing, the Fund may advertise its total return for
each Class over different periods of time by means of aggregate, average,
year-by-year or other types of total return figures. Such calculations may or
may not reflect the imposition of the maximum front-end sales charge for Class A
or the deduction of the CDSC for each of Class B and Class C which, if
reflected, would reduce the performance quoted. For example, the average annual
total return of the Fund may be calculated in the manner described above, but
without deduction for any applicable sales charge.
 
     In addition, the Fund may compute its aggregate total return for each Class
for specified periods by determining the aggregate percentage rate which will
result in the ending value of a hypothetical $1,000 investment made at the
beginning of the period. For the purpose of this calculation, it is assumed that
all dividends and distributions are reinvested. The formula for computing
aggregate total return involves a percentage obtained by dividing the ending
value (without the reduction for any sales charge) by the initial $1,000
investment and subtracting 1 from the result.
 
     The Fund may also advertise the growth of hypothetical investments of
$10,000, $50,000 and $100,000 in each class of shares of the Fund by adding 1 to
the Fund's aggregate total return to date (expressed as a decimal and without
taking into account the effect of any applicable CDSC) and multiplying by
$9,475, $48,000 and $97,000 in the case of Class A (investments of $10,000,
$50,000 and $100,000 adjusted for the initial sales charge) or by $10,000,
$50,000 and $100,000 in the case of each of Class B, Class C and Class D, as the
case may be.
 
     The Fund from time to time may also advertise its performance relative to
certain performance rankings and indexes compiled by independent organizations.
DESCRIPTION OF SHARES OF THE FUND
- --------------------------------------------------------------------------------
 
     The shareholders of the Fund are entitled to a full vote for each full
share held. The Trustees themselves have the power to alter the number and the
terms of office of the Trustees, and they may at
 
                                       45
<PAGE>   86
 
any time lengthen their own terms or make their terms of unlimited duration and
appoint their own successors, provided that always at least a majority of the
Trustees has been elected by the shareholders of the Fund. Under certain
circumstances the Trustees may be removed by action of the Trustees. The
shareholders also have the right under certain circumstances to remove the
Trustees. The voting rights of shareholders are not cumulative, so that holders
of more than 50 percent of the shares voting can, if they choose, elect all
Trustees being selected, while the holders of the remaining shares would be
unable to elect any Trustees.
 
     The Declaration of Trust permits the Trustees to authorize the creation of
additional series of shares (the proceeds of which would be invested in
separate, independently managed portfolios) and additional classes of shares
within any series. The Trustees have not authorized any such additional series
or classes of shares other than as set forth in the Prospectus.
 
     The Declaration of Trust provides that no Trustee, officer, employee or
agent of the Fund is liable to the Fund or to a shareholder, nor is any Trustee,
officer, employee or agent liable to any third persons in connection with the
affairs of the Fund, except as such liability may arise from his/her or its own
bad faith, willful misfeasance, gross negligence, or reckless disregard of
his/her or its duties. It also provides that all third persons shall look solely
to the Fund property for satisfaction of claims arising in connection with the
affairs of the Fund. With the exceptions stated above, the Declaration of Trust
provides that a Trustee, officer, employee or agent is entitled to be
indemnified against all liability in connection with the affairs of the Fund.
 
     The Fund is authorized to issue an unlimited number of shares of beneficial
interest. The Fund shall be of unlimited duration, subject to the provisions in
the Declaration of Trust concerning termination by action of the shareholders.
CUSTODIAN AND TRANSFER AGENT
- --------------------------------------------------------------------------------
 
     The Bank of New York, 90 Washington Street, New York, New York 10286, is
the Custodian of the Fund's assets in the United States and around the world. As
Custodian, The Bank of New York has contracted with various foreign banks and
depositaries to hold portfolio securities of non-U.S. issuers on behalf of the
Fund. Any of the Fund's cash balances with the Custodian in excess of $100,000
are unprotected by federal deposit insurance. Such balances may, at times, be
substantial.
 
     Morgan Stanley Dean Witter Trust FSB ("MSDW Trust"), Harborside Financial
Center, Plaza Two, Jersey City, New Jersey 07311 is the Transfer Agent of the
Fund's shares and Dividend Disbursing Agent for payment of dividends and
distributions on Fund shares and Agent for shareholders under various investment
plans described herein. MSDW Trust is an affiliate of Dean Witter InterCapital
Inc., the Fund's Investment Manager and Dean Witter Distributors Inc., the
Fund's Distributor. As Transfer Agent and Dividend Disbursing Agent, MSDW
Trust's responsibilities include maintaining shareholder accounts, disbursing
cash dividends and reinvesting dividends, processing account registration
changes, handling purchase and redemption transactions, mailing prospectuses and
reports, mailing and tabulating proxies, processing share certificate
transactions, and maintaining shareholder records and lists. For these services
MSDW Trust receives a per shareholder account fee.
INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
     Price Waterhouse LLP serves as the independent accountants of the Fund. The
independent accountants are responsible for auditing the annual financial
statements of the Fund.
REPORTS TO SHAREHOLDERS
- --------------------------------------------------------------------------------
 
     The Fund will send to shareholders, at least semi-annually, reports showing
the Fund's portfolio and other information. An annual report containing
financial statements audited by independent accountants will be sent to
shareholders each year.
 
                                       46
<PAGE>   87
 
     The Fund's fiscal year ends on May 31. The financial statements of the Fund
must be audited at least once a year by independent accountants whose selection
is made annually by the Fund's Board of Trustees.
LEGAL COUNSEL
- --------------------------------------------------------------------------------
 
     Barry Fink, Esq., who is an officer and the General Counsel of the
Investment Manager, is an officer and the General Counsel of the Fund.
EXPERTS
- --------------------------------------------------------------------------------
 
     The Statement of Assets and Liabilities of the Fund at May 12, 1998
included in this Statement of Additional Information and incorporated by
reference in the Prospectus have been so included and incorporated in reliance
on the report of Price Waterhouse LLP, independent accountants, given on the
authority of said firm as experts in auditing and accounting.
REGISTRATION STATEMENT
- --------------------------------------------------------------------------------
 
     This Statement of Additional Information and the Prospectus do not contain
all of the information set forth in the Registration Statement the Fund has
filed with the Securities and Exchange Commission. The complete Registration
Statement may be obtained from the Securities and Exchange Commission upon
payment of the fee prescribed by the rules and regulations of the Commission.
 
                                       47
<PAGE>   88
 
MORGAN STANLEY DEAN WITTER EQUITY FUND
STATEMENT OF ASSETS AND LIABILITIES AT MAY 12, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                           <C>
ASSETS:
  Cash......................................................  $100,000
  Deferred offering costs (Note 1)..........................   124,820
                                                              --------
      Total Assets..........................................   224,820
                                                              --------
LIABILITIES:
  Offering costs payable (Note 1)...........................   124,820
  Commitments (Notes 1 and 2)...............................        --
                                                              --------
      Net Assets............................................  $100,000
                                                              ========
CLASS A SHARES:
Net Assets..................................................  $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)...     2,500
    NET ASSET VALUE PER SHARE...............................  $  10.00
                                                              ========
    MAXIMUM OFFERING PRICE
    (net asset value plus 5.5% of net asset value)..........  $  10.55
                                                              ========
CLASS B SHARES:
Net Assets..................................................  $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)...     2,500
    NET ASSET VALUE PER SHARE...............................  $  10.00
                                                              ========
CLASS C SHARES:
Net Assets..................................................  $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)...     2,500
    NET ASSET VALUE PER SHARE...............................  $  10.00
                                                              ========
CLASS D SHARES:
Net Assets..................................................  $ 25,000
Shares Outstanding (unlimited authorized, $.01 par value)...     2,500
    NET ASSET VALUE PER SHARE...............................  $  10.00
                                                              ========
</TABLE>
 
- ---------------
NOTE 1--Morgan Stanley Dean Witter Equity Fund (the "Fund") was organized as a
Massachusetts business trust on April 6, 1998. To date the Fund has had no
transactions other than those relating to organizational matters and the sale of
2,500 shares of beneficial interest for $25,000 of each class of the Fund to
Dean Witter InterCapital Inc. (the "Investment Manager"), a wholly-owned
subsidiary of Morgan Stanley Dean Witter & Co. ("MSDW"). The Fund is registered
under the Investment Company Act of 1940, as amended (the "Act"), as a
diversified, open-end management investment company. The investment objective of
the Fund is total return. Estimated organizational expenses of the Fund in the
amount of approximately $17,000 incurred prior to the offering of the Fund's
shares will be absorbed by the Investment Manager. It is currently estimated
that the Investment Manager will incur, and be reimbursed, approximately
$124,820 by the Fund in offering costs. Actual costs could differ from these
estimates. Offering costs will be deferred and amortized by the Fund on the
straight-line method over the period of benefit of approximately one year or
less from the date of commencement of operations.
 
NOTE 2--The Fund has entered into an investment management agreement with the
Investment Manager. The Investment Manager has entered into a Sub-Advisory
Agreement with Miller Anderson & Sherrerd, LLP (the "Sub-Adviser"), an indirect
subsidiary of MSDW. The Sub-Adviser will provide investment advice and portfolio
management relating to the Fund's investments in securities, subject to the
overall supervision of the Investment Manager. Certain officers and/or trustees
of the Fund are officers and/or directors of the Investment Manager and Sub-
Adviser. The Fund has retained the Investment Manager to supervise the
investment of the Fund's assets, including the placing of orders for the
purchase and sale of portfolio securities. Under the terms of the Investment
Management Agreement, the Investment Manager maintains certain of the Fund's
books and records and furnishes, at its own expense, such office space,
facilities, equipment, supplies, clerical help and bookkeeping and certain legal
services as the Fund may reasonably require in the conduct of its business. In
addition, the Investment Manager pays the salaries of all personnel, including
officers of the Fund, who are employees of the Investment Manager. The
Investment Manager also bears the cost of the Fund's telephone service, heat,
light, power and other utilities.
 
    As full compensation for the services and facilities furnished to the Fund
and expenses of the Fund incurred by the Investment Manager, the Fund will pay
the Investment Manager monthly compensation calculated daily by applying the
annual rate of 0.85% to the Fund's daily net assets. As compensation for the
services to be provided
 
                                       48
<PAGE>   89
 
pursuant to the Sub-Advisory Agreement, the Investment Manager will pay the
Sub-Adviser monthly compensation equal to 40% of its monthly compensation.
 
   
    Shares of the Fund will be distributed by Dean Witter Distributors Inc. (the
"Distributor"), an affiliate of the Investment Manager. The Fund has adopted a
Plan of Distribution pursuant to Rule 12b-1 under the Act (the "Plan") with
respect to the distribution of Class A, Class B and Class C shares of the Fund.
To compensate the Distributor for the services provided and for the expenses
borne by the Distributor and others under the Plan, Class A, Class B and Class C
of the Fund will pay the Distributor compensation accrued daily and payable
monthly at the annual rate of 0.25% of the average daily net assets of Class A
and 1.0% of the average daily net assets of each of Class B and Class C.
    
 
   
    The Plan provides that the Distributor will bear the expense of all
promotional and distribution related activities on behalf of Class B and Class C
shares of the Fund, including the payment of commissions for sales of such
shares and incentive compensation to and expenses of Financial Advisors of Dean
Witter Reynolds Inc. ("DWR"), an affiliate of the Investment Manager and the
Distributor, and others who engage in or support distribution of shares or who
service shareholder accounts, including overhead and telephone expenses;
printing and distribution of prospectuses and reports used in connection with
the offering of the Fund's shares to other than current shareholders; and
preparation, printing and distribution of sales literature and advertising
materials. In addition, with respect to Class B, the Distributor may utilize
fees paid pursuant to the Plan to compensate DWR and others for their
opportunity costs in advancing such amounts, which compensation would be in the
form of a carrying charge on any unreimbursed distribution expenses incurred. In
the case of Class B shares, provided that the Plan continues in effect, any
cumulative expenses incurred by the Distributor but not yet recovered may be
recovered through the payment of future distribution fees from the Fund pursuant
to the Plan and contingent deferred sales charges paid by investors upon
redemption of Class B shares. With respect to Class B, although there is no
legal obligation for the Fund to pay expenses incurred in excess of payments
made to the Distributor under the Plan and the proceeds of contingent deferred
sales charges paid by investors upon redemption of shares, if for any reason the
Plan is terminated, the Trustees will consider at that time the manner in which
to treat such expenses. In the case of Class A shares and Class C shares,
expenses incurred pursuant to the Plan in any calendar year in excess of 0.25%
or 1.00% of the average daily net assets of Class A or Class C, respectively,
will not be reimbursed by the Fund through payments in any subsequent year,
except that expenses representing a gross sales credit to Morgan Stanley Dean
Witter Financial Advisors and other selected broker-dealer representatives may
be reimbursed in the subsequent calendar year.
    
 
    Morgan Stanley Dean Witter Trust FSB, an affiliate of the Investment Manager
and the Distributor, is the transfer agent of the Fund's shares, dividend
disbursing agent for payment of dividends and distributors on Fund shares and
agent for shareholders under various investment plans.
 
    The Investment Manager has undertaken to assume all operating expenses
(except for the Plan fee and brokerage fees) and to waive the compensation
provided for in its Investment Management Agreement until such time as the Fund
has $50 million of net assets or until six months from the date of commencement
of the Fund's operations, whichever occurs first.
 
                                       49
<PAGE>   90
 
REPORT OF INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
To the Shareholder and Trustees of
Morgan Stanley Dean Witter Equity Fund
 
In our opinion, the accompanying statement of assets and liabilities presents
fairly, in all material respects, the financial position of Morgan Stanley Dean
Witter Equity Fund (hereafter referred to as the "Fund") at May 12, 1998, in
conformity with generally accepted accounting principles. This financial
statement is the responsibility of the Fund's management; our responsibility is
to express an opinion on this financial statement based on our audit. We
conducted our audit of this financial statement in accordance with generally
accepted auditing standards which require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statement is free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statement, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audit provides a reasonable basis for the opinion expressed above.
 
PRICE WATERHOUSE LLP
1177 Avenue of the Americas
New York, New York 10036
May 13, 1998
 
                                       50
<PAGE>   91
 
APPENDIX
- --------------------------------------------------------------------------------
 
RATINGS OF CORPORATE DEBT INSTRUMENTS INVESTMENTS
 
MOODY'S INVESTORS SERVICE INC. ("MOODY'S")
 
                         FIXED-INCOME SECURITY RATINGS
 
<TABLE>
<S>           <C>
Aaa           Fixed-income securities which are rated Aaa are judged to be
              of the best quality. They carry the smallest degree of
              investment risk and are generally referred to as "gilt
              edge." Interest payments are protected by a large or by an
              exceptionally stable margin and principal is secure. While
              the various protective elements are likely to change, such
              changes as can be visualized are most unlikely to impair the
              fundamentally strong position of such issues.
Aa            Fixed-income securities which are rated Aa are judged to be
              of high quality by all standards. Together with the Aaa
              group they comprise what are generally known as high grade
              fixed-income securities. They are rated lower than the best
              fixed-income securities because margins of protection may
              not be as large as in Aaa securities or fluctuation of
              protective elements may be of greater amplitude or there may
              other elements present which make the long-term risks appear
              somewhat larger than in Aaa securities.
A             Fixed-income securities which are rated A possess many
              favorable investment attributes and are to be considered as
              upper medium grade obligations. Factors giving security to
              principal and interest are considered adequate, but elements
              may be present which suggest a susceptibility to impairment
              sometime in the future.
Baa           Fixed-income securities which are rated Baa are considered
              as medium grade obligations; i.e., they are neither highly
              protected nor poorly secured. Interest payments and
              principal security appear adequate for the present but
              certain protective elements may be lacking or may be
              characteristically unreliable over any great length of time.
              Such fixed-income securities lack outstanding investment
              characteristics and in fact have speculative characteristics
              as well.
              Fixed-income securities rated Aaa, Aa, A and Baa are
              considered investment grade.
Ba            Fixed-income securities which are rated Ba are judged to
              have speculative elements; their future cannot be considered
              as well assured. Often the protection of interest and
              principal payments may be very moderate, and therefore not
              well safeguarded during both good and bad times in the
              future. Uncertainty of position characterizes bonds in this
              class.
B             Fixed-income securities which are rated B generally lack
              characteristics of the desirable investment. Assurance of
              interest and principal payments or of maintenance of other
              terms of the contract over any long period of time may be
              small.
Caa           Fixed-income securities which are rated Caa are of poor
              standing. Such issues may be in default or there may be
              present elements of danger with respect to principal or
              interest.
Ca            Fixed-income securities which are rated Ca present
              obligations which are speculative in a high degree. Such
              issues are often in default or have other marked
              shortcomings.
C             Fixed-income securities which are rated C are the lowest
              rated class of fixed income securities, and issues so rated
              can be regarded as having extremely poor prospects of ever
              attaining any real investment standing.
</TABLE>
 
     Rating Refinements:  Moody's may apply numerical modifiers, 1, 2, and 3 in
each generic rating classification from Aa through B in its municipal
fixed-income security rating system. The modifier 1 indicates that the security
ranks in the higher end of its generic rating category; the modifier 2 indicates
a mid-range ranking; and a modifier 3 indicates that the issue ranks in the
lower end of its generic rating category.
 
                                       51
<PAGE>   92
 
                            COMMERCIAL PAPER RATINGS
 
     Moody's Commercial Paper ratings are opinions of the ability to repay
punctually promissory obligations not having an original maturity in excess of
nine months. The ratings apply to Municipal Commercial Paper as well as taxable
Commercial Paper. Moody's employs the following three designations, all judged
to be investment grade, to indicate the relative repayment capacity of rated
issuers: Prime-1, Prime-2, Prime-3.
 
     Issuers rated Prime-1 have a superior capacity for repayment of short-term
promissory obligations. Issuers rated Prime-2 have a strong capacity for
repayment of short-term promissory obligations; and Issuers rated Prime-3 have
an acceptable capacity for repayment of short-term promissory obligations.
Issuers rated Not Prime do not fall within any of the Prime rating categories.
 
STANDARD & POOR'S CORPORATION ("STANDARD & POOR'S")
 
                         FIXED-INCOME SECURITY RATINGS
 
     A Standard & Poor's fixed-income security rating is a current assessment of
the creditworthiness of an obligor with respect to a specific obligation. This
assessment may take into consideration obligors such as guarantors, insurers, or
lessees.
 
     The ratings are based on current information furnished by the issuer or
obtained by Standard & Poor's from other sources it considers reliable. The
ratings are based, in varying degrees, on the following considerations: (1)
likelihood of default-capacity and willingness of the obligor as to the timely
payment of interest and repayment of principal in accordance with the terms of
the obligation; (2) nature of and provisions of the obligation; and (3)
protection afforded by, and relative position of, the obligation in the event of
bankruptcy, reorganization or other arrangement under the laws of bankruptcy and
other laws affecting creditors' rights.
 
     Standard & Poor's does not perform an audit in connection with any rating
and may, on occasion, rely on unaudited financial information. The ratings may
be changed, suspended or withdrawn as a result of changes in, or unavailability
of, such information, or for other reasons.
 
<TABLE>
<S>           <C>
AAA           Fixed-income securities rated "AAA" have the highest rating
              assigned by Standard & Poor's. Capacity to pay interest and
              repay principal is extremely strong.
AA            Fixed-income securities rated "AA" have a very strong
              capacity to pay interest and repay principal and differs
              from the highest-rate issues only in small degree.
A             Fixed-income securities rated "A" have a strong capacity to
              pay interest and repay principal although they are somewhat
              more susceptible to the adverse effects of changes in
              circumstances and economic conditions than fixed-income
              securities in higher-rated categories.
BBB           Fixed-income securities rated "BBB" are regarded as having
              an adequate capacity to pay interest and repay principal.
              Whereas it normally exhibits adequate protection parameters,
              adverse economic conditions or changing circumstances are
              more likely to lead to a weakened capacity to pay interest
              and repay principal for fixed-income securities in this
              category than for fixed-income securities in higher-rated
              categories.
              Fixed-income securities rated AAA, AA, A and BBB are
              considered investment grade.
BB            Fixed-income securities rated "BB" have less near-term
              vulnerability to default than other speculative grade
              fixed-income securities. However, it faces major ongoing
              uncertainties or exposures to adverse business, financial or
              economic conditions which could lead to inadequate capacity
              or willingness to pay interest and repay principal.
</TABLE>
 
                                       52
<PAGE>   93
<TABLE>
<S>           <C>
B             Fixed-income securities rated "B" have a greater
              vulnerability to default but presently have the capacity to
              meet interest payments and principal repayments. Adverse
              business, financial or economic conditions would likely
              impair capacity or willingness to pay interest and repay
              principal.
CCC           Fixed-income securities rated "CCC" have a current
              identifiable vulnerability to default, and are dependent
              upon favorable business, financial and economic conditions
              to meet timely payments of interest and repayments of
              principal. In the event of adverse business, financial or
              economic conditions, they are not likely to have the
              capacity to pay interest and repay principal.
CC            The rating "CC" is typically applied to fixed-income
              securities subordinated to senior debt which is assigned an
              actual or implied "CCC" rating.
C             The rating "C" is typically applied to fixed-income
              securities subordinated to senior debt which is assigned an
              actual or implied "CCC-" rating.
CI            The rating "CI" is reserved for fixed-income securities on
              which no interest is being paid.
NR            Indicates that no rating has been requested, that there is
              insufficient information on which to base a rating or that
              Standard & Poor's does not rate a particular type of
              obligation as a matter of policy.
              Fixed-income securities rated "BB," "B," "CCC," "CC" and "C"
              are regarded as having predominantly speculative
              characteristics with respect to capacity to pay interest and
              repay principal. "BB" indicates the least degree of
              speculation and "C" the highest degree of speculation. While
              such fixed-income securities will likely have some quality
              and protective characteristics, these are outweighed by
              large uncertainties or major risk exposures to adverse
              conditions.
              Plus (+) or minus (-): The rating from "AA" to "CCC" may be
              modified by the addition of a plus or minus sign to show
              relative standing with the major ratings categories.
</TABLE>
 
                            COMMERCIAL PAPER RATINGS
 
     Standard and Poor's commercial paper rating is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more than
365 days. The commercial paper rating is not a recommendation to purchase or
sell a security. The ratings are based upon current information furnished by the
issuer or obtained by S&P from other sources it considers reliable. The ratings
may be changed, suspended, or withdrawn as a result of changes in or
unavailability of such information. Ratings are graded into group categories,
ranging from "A" for the highest quality obligations to "D" for the lowest.
Ratings are applicable to both taxable and tax-exempt commercial paper. The
categories are as follows:
 
     Issues assigned A ratings are regarded as having the greatest capacity for
timely payment. Issues in this category are further refined with the designation
1, 2, and 3 to indicate the relative degree of safety.
 
<TABLE>
<S>           <C>
A-1           indicates that the degree of safety regarding timely payment
              is very strong.
A-2           indicates capacity for timely payment on issues with this
              designation is strong. However, the relative degree of
              safety is not as overwhelming as for issues designated
              "A-1."
A-3           indicates a satisfactory capacity for timely payment.
              Obligations carrying this designation are, however, somewhat
              more vulnerable to the adverse effects of changes in
              circumstances than obligations carrying the higher
              designations.
</TABLE>
 
                                       53
<PAGE>   94
 
FITCH INVESTORS SERVICE, INC. ("FITCH")
 
                                  BOND RATINGS
 
     The Fitch Bond Ratings provides a guide to investors in determining the
investment risk associated with a particular security. The rating represents its
assessment of the issuer's ability to meet the obligations of a specific debt
issue or class of debt in a timely manner. Fitch bond ratings are not
recommendations to buy, sell or hold securities since they incorporate no
information on market price or yield relative to other debt instruments.
 
     The rating takes into consideration special features of the issue, its
relationship to other obligations of the issuer, the record of the issuer and of
any guarantor, as well as the political and economic environment that might
affect the future financial strength and credit quality of the issuer.
 
     Bonds which have the same rating are of similar but not necessarily
identical investment quality since the limited number of rating categories
cannot fully reflect small differences in the degree of risk. Moreover, the
character of the risk factor varies from industry to industry and between
corporate, health care and municipal issues.
 
     In assessing credit risk, Fitch Investors Service relies on current
information furnished by the issuer and/or guarantor and other sources which it
considers reliable. Fitch does not perform an audit of the financial statements
used in assigning a rating.
 
     Ratings may be changed, withdrawn or suspended at any time to reflect
changes in the financial condition of the issuer, the status of the issue
relative to other debt of the issuer, or any other circumstances that Fitch
considers to have a material effect on the credit of the obligor.
 
<TABLE>
<S>           <C>
AAA           rated bonds are considered to be investment grade and of the
              highest credit quality. The obligor has an exceptionally
              strong ability to pay interest and repay principal, which is
              unlikely to be affected by reasonably foreseeable events.
AA            rated bonds are considered to be investment grade and of
              very high credit quality. The obligor's ability to pay
              interest and repay principal, while very strong, is somewhat
              less than for AAA rated securities or more subject to
              possible change over the term of the issue.
A             rated bonds are considered to be investment grade and of
              high credit quality. The obligor's ability to pay interest
              and repay principal is considered to be strong, but may be
              more vulnerable to adverse changes in economic conditions
              and circumstances than bonds with higher ratings.
BBB           rated bonds are considered to be investment grade and of
              satisfactory credit quality. The obligor's ability to pay
              interest and repay principal is considered to be adequate.
              Adverse changes in economic conditions and circumstances,
              however, are more likely to weaken this ability than bonds
              with higher ratings.
BB            rated bonds are considered speculative and of low investment
              grade. The obligor's ability to pay interest and repay
              principal is not strong and is considered likely to be
              affected over time by adverse economic changes.
B             rated bonds are considered highly speculative. Bonds in this
              class are lightly protected as to the obligor's ability to
              pay interest over the life of the issue and repay principal
              when due.
CCC           rated bonds may have certain identifiable characteristics
              which, if not remedied, could lead to the possibility of
              default in either principal or interest payments.
CC            rated bonds are minimally protected. Default in payment of
              interest and/or principal seems probable.
C             rated bonds are in imminent default in payment of interest
              or principal.
</TABLE>
 
                                       54
<PAGE>   95
 
                               SHORT-TERM RATINGS
 
     Fitch's short-term ratings apply to debt obligations that are payable on
demand or have original maturities of generally up to three years, including
commercial paper, certificates of deposit, medium-term notes, and municipal and
investment notes. Although the credit analysis is similar to Fitch's bond rating
analysis, the short-term rating places greater emphasis on the existence of
liquidity necessary to meet the issuer's obligations in a timely manner. Fitch's
short-term ratings are as follows:
 
<TABLE>
<S>           <C>
Fitch-1+      (Exceptionally Strong Credit Quality) Issues assigned this
              rating are regarded as having the strongest degree of
              assurance for timely payment.
Fitch-1       (Very Strong Credit Quality) Issues assigned this rating
              reflect an assurance of timely payment only slightly less in
              degree than issues rated Fitch-1+.
Fitch-2       (Good Credit Quality) Issues assigned this rating have a
              satisfactory degree of assurance for timely payment but the
              margin of safety is not as great as the two higher
              categories.
Fitch-3       (Fair Credit Quality) Issues assigned this rating have
              characteristics suggesting that the degree of assurance for
              timely payment is adequate, however, near-term adverse
              change is likely to cause these securities to be rated below
              investment grade.
Fitch-S       (Weak Credit Quality) Issues assigned this rating have
              characteristics suggesting a minimal degree of assurance for
              timely payment and are vulnerable to near term adverse
              changes in financial and economic conditions.
D             (Default) Issues assigned this rating are in actual or
              imminent payment default.
LOC           This symbol LOC indicates that the rating is based on a
              letter of credit issued by a commercial bank.
</TABLE>
 
DUFF & PHELPS, INC.
 
                               LONG-TERM RATINGS
 
     These ratings represent a summary opinion of the issuer's long-term
fundamental quality. Rating determination is based on qualitative and
quantitative factors which may vary according to the basic economic and
financial characteristics of each industry and each issuer. Important
considerations are vulnerability to economic cycles as well as risks related to
such factors as competition, government action, regulation, technological
obsolescence, demand shifts, cost structure, and management depth and expertise.
The projected viability of the obligor at the trough of the cycle is a critical
determination.
 
     Each rating also takes into account the legal form of the security, (e.g.,
first mortgage bonds, subordinated debt, preferred stock, etc.). The extent of
rating dispersion among the various classes of securities is determined by
several factors including relative weightings of the different security classes
in the capital structure, the overall credit strength of the issuer, and the
nature of covenant protection. Review of indenture restrictions is important to
the analysis of a company's operating and financial constraints.
 
     The Credit Rating Committee formally reviews all ratings once per quarter
(more frequently, if necessary).
 
<TABLE>
<CAPTION>
RATING SCALE                           DEFINITION
- ------------                           ----------
<S>           <C>
AAA           Highest credit quality. The risk factors are negligible,
              being only slightly more than risk-free U.S. Treasury debt.
AA+           High credit quality. Protection factors are strong. Risk is
AA            modest, but may vary slightly from time to time because of
AA-           economic conditions.
</TABLE>
 
                                       55
<PAGE>   96
 
   
<TABLE>
<CAPTION>
RATING SCALE                           DEFINITION
- ------------                           ----------
<S>           <C>
A+            Protection factors are average but adequate. However, risk
A             factors are more variable and greater in periods of economic
A-            stress.
BBB+          Below average protection factors but still considered
BBB           sufficient for prudent investment. Considerable variability
BBB-          in risk during economic cycles.
BB+           Below investment grade but deemed likely to meet obligations
BB            when due. Present or prospective financial protection
BB-           factors fluctuate according to industry conditions or
              company fortunes. Overall quality may move up or down
              frequently within this category.
B+            Below investment grade and possessing risk that obligations
B             will not be met when due. Financial protection factors will
B-            fluctuate widely according to economic cycles, industry
              conditions and/or company fortunes. Potential exists for
              frequent changes in the quality rating within this category
              or into a higher or lower quality rating grade.
CCC           Well below investment grade securities. May be in default or
              have considerable uncertainty exists as to timely payment of
              principal, interest or preferred dividends. Protection
              factors are narrow and risk can be substantial with
              unfavorable economic/industry conditions, and/ or with
              unfavorable company developments.
DD            Defaulted debt obligations. Issuer failed to meet scheduled
              principal and/or interest payments.
DP            Preferred stock with dividend arrearages.
</TABLE>
    
 
                               SHORT-TERM RATINGS
 
     Duff & Phelps' short-term ratings are consistent with the rating criteria
utilized by money market participants. The ratings apply to all obligations with
maturities of under one year, including commercial paper, the uninsured portion
of certificates of deposit, unsecured bank loans, master notes, bankers
acceptances, irrevocable letters of credit, and current maturities of long-term
debt. Asset-backed commercial paper is also rated according to this scale.
 
     Emphasis is placed on liquidity which is defined as not only cash from
operations, but also access to alternative sources of fund, including trade
credit, bank lines, and the capital markets. An important consideration is the
level of an obligor's reliance on short-term funds on an ongoing basis.
 
<TABLE>
<S>            <C>
A. CATEGORY    HIGH GRADE
  1:
Duff 1+        Highest certainty of timely payment. Short-term liquidity,
               including internal operating factors and/or access to
               alternative sources of funds, is outstanding, and safety is
               just below risk-free U.S. Treasury short-term obligations.
Duff 1         Very high certainty of timely payment. Liquidity factors are
               excellent and supported by good fundamental protection
               factors. Risk factors are minor.
Duff-          High certainty of timely payment. Liquidity factors are
               strong and supported by good fundamental protection factors.
               Risk factors are very small.
 
B. CATEGORY    GOOD GRADE
  2:
Duff 2         Good certainty of timely payment. Liquidity factors and
               company fundamentals are sound. Although ongoing funding
               needs may enlarge total financing requirements, access to
               capital markets is good. Risk factors are small.
 
C. CATEGORY    SATISFACTORY GRADE
  3:
Duff 3         Satisfactory liquidity and other protection factors qualify
               issue as to investment grade. Risk factors are larger and
               subject to more variation. Nevertheless, timely payment is
               expected.
</TABLE>
 
                                       56
<PAGE>   97
D. CATEGORY    NON-INVESTMENT GRADE
  4:
Duff 4         Speculative investment characteristics. Liquidity is not
               sufficient to insure against disruption in debt service.
               Operating factors and market access may be subject to a high
               degree of variation.
 
E. CATEGORY    DEFAULT
  5:
Duff 5         Issuer failed to meet scheduled principal and/or interest
               payments.
 
                                       57


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