DEAN WITTER MID CAP GROWTH FUND
497, 1996-07-23
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<PAGE>
                                                Filed Pursuant to Rule 497e
                                                Registration File No.: 33-53955

                                                 DEAN WITTER
                                                 MID-CAP GROWTH FUND

                                                 PROSPECTUS -- JULY 22, 1996
- ------------------------------------------------------------------------------

DEAN WITTER MID-CAP GROWTH FUND (THE "FUND") IS AN OPEN-END, DIVERSIFIED
MANAGEMENT INVESTMENT COMPANY WHOSE INVESTMENT OBJECTIVE IS TO SEEK LONG-TERM
CAPITAL GROWTH. THE FUND SEEKS TO MEET ITS INVESTMENT OBJECTIVE BY INVESTING
PRIMARILY IN EQUITY SECURITIES OF "MID-CAP" COMPANIES.

Shares of the Fund are continuously offered at net asset value without the
imposition of a sales charge. However, redemptions and/or repurchases are
subject in most cases to a contingent deferred sales charge, scaled down from
5% to 1% of the amount redeemed, if made within six years of purchase, which
charge will be paid to the Fund's Distributor, Dean Witter Distributors Inc.
(See "Redemptions and Repurchases--Contingent Deferred Sales Charge.") In
addition, the Fund pays the Distributor a Rule 12b-1 distribution fee
pursuant to a Plan of Distribution at the annual rate of 1% of the lesser of
the (i) average daily aggregate net sales or (ii) average daily net assets of
the Fund. (See "Purchase of Fund Shares--Plan of Distribution.")

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 July 22, 1996, 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.

TABLE OF CONTENTS

Prospectus Summary ....................................................      2

Summary of Fund Expenses ..............................................      3

Financial Highlights ..................................................      4

The Fund and its Management ...........................................      5

Investment Objective and Policies .....................................      5

Risk Considerations ...................................................     10

Investment Restrictions ...............................................     11

Purchase of Fund Shares ...............................................     11

Shareholder Services ..................................................     13

Redemptions and Repurchases  ..........................................     15

Dividends, Distributions and Taxes  ...................................     17

Performance Information ...............................................     18

Additional Information ................................................     18

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.

DEAN WITTER
MID-CAP GROWTH FUND
TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
(212) 392-2550 OR
(800) 869-NEWS (TOLL-FREE)

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 NOR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.

                    Dean Witter Distributors Inc., Distributor





     
<PAGE>

PROSPECTUS SUMMARY
- -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
<S>                 <C>
The Fund            The Fund is organized as a Trust, commonly known as a Massachusetts business trust, and is an open-end,
                    diversified management investment company. The Fund invests primarily in equity securities of "mid-cap"
                    companies.
- ------------------  ---------------------------------------------------------------------------------------------------
Shares Offered      Shares of beneficial interest with $.01 par value (see page 18).
- ------------------  ---------------------------------------------------------------------------------------------------
Offering            At net asset value without a front-end sales charge (see page 11). Shares redeemed within six years of
Price               purchase are subject to a contingent deferred sales charge under most circumstances (see page 15).
- ------------------  ---------------------------------------------------------------------------------------------------
Minimum             The minimum initial investment is $1,000 ($100 if the account is opened through EasyInvest(Service Mark))
Purchase            and the minimum subsequent investment is $100 (see page 11).
- ------------------  ---------------------------------------------------------------------------------------------------
Investment          The investment objective of the Fund is long-term capital growth.
Objective
- ------------------  ---------------------------------------------------------------------------------------------------
Investment          Dean Witter InterCapital Inc. ("InterCapital"), the Investment Manager of the Fund, and its wholly-owned
Manager             subsidiary, Dean Witter Services Company Inc., serve in various investment management, advisory, management
                    and administrative capacities to ninety-eight investment companies and other portfolios with net assets
                    under management of approximately $84.6 billion at June 30, 1996.
- ------------------  ---------------------------------------------------------------------------------------------------
Management          The Investment Manager receives a monthly fee at the annual rate of 0.75% of the Fund's average daily
Fee                 net assets. The fee should not be compared with fees paid by other investment companies without also
                    considering applicable sales loads and distribution fees, including those noted below (see page 5).
- ------------------  ---------------------------------------------------------------------------------------------------
Dividends and       Dividends from net investment income, if any, are paid at least annually. Capital gains, if any, are
Distributions       distributed at least annually or retained for reinvestment by the Fund. Dividends and capital gains
                    distributions are automatically reinvested in additional shares at net asset value unless the shareholder
                    elects to receive cash (see page 17).
- ------------------  ---------------------------------------------------------------------------------------------------
Distributor         Dean Witter Distributors Inc. ("Distributor") is the distributor of the Fund's shares. The Distributor
                    receives from the Fund a Rule 12b-1 distribution fee accrued daily and payable monthly at the rate of
                    1.0% per annum of the lesser of (i) the Fund's average daily aggregate net sales or (ii) the Fund's average
                    daily net assets. This fee compensates the Distributor for the services provided in distributing shares
                    of the Fund and for sales related expenses. The Distributor also receives the proceeds of any contingent
                    deferred sales charges (see page 12).
- ------------------  ---------------------------------------------------------------------------------------------------
Redemption--        Shares are redeemable by the shareholder at net asset value. An account may be involuntarily redeemed
Contingent          if the total value of the account is less than $100 or, if the account was opened through EasyInvest
Deferred            (Service Mark), if after twelve months the shareholder has invested less than $1,000 in the account.
Sales Charge        Although no commission or sales load is imposed upon the purchase of shares, a contingent deferred sales
                    charge (which declines from 5% to 1%) is imposed on any redemption of shares if after such redemption
                    the aggregate current value of an account with the Fund is less than the aggregate amount of the investor's
                    purchase payments made during the six years preceding the redemption. However, there is no charge imposed
                    on redemption of shares purchased through reinvestment of dividends or distributions (see page 15).
- ------------------  ---------------------------------------------------------------------------------------------------
Risk                The net asset value of the Fund's shares will fluctuate with changes in the market value of portfolio
Considerations      securities. Investing in medium-sized market capitalization companies may involve greater risk of volatility
                    in the Fund's net asset value than is customarily associated with investing in larger, more established
                    companies. In addition, it should be recognized that the foreign securities and markets in which the
                    Fund may invest up to 35% of its total assets pose different and greater risks than those customarily
                    associated with domestic securities and their markets (see page 10).
- ------------------  ---------------------------------------------------------------------------------------------------
Shareholder         Automatic Investment of Dividends and Distributions; Investment of Distributions Received in Cash; Systematic
Services            Withdrawal Plan; Exchange Privilege; EasyInvest (Service Mark), Tax-Sheltered Retirement Plans (see pages
                    13-15).
- ------------------  ---------------------------------------------------------------------------------------------------
</TABLE>

 The above is qualified in its entirety by the detailed information appearing
  elsewhere in this Prospectus and in the Statement of Additional Information.

                                2



     
<PAGE>

SUMMARY OF FUND EXPENSES
- -----------------------------------------------------------------------------

The following table illustrates all expenses and fees that a shareholder of
the Fund will incur. The annualized expenses and fees set forth in the table
are for the fiscal year ended May 31, 1996.

<TABLE>
<CAPTION>
<S>                                                                                       <C>
 SHAREHOLDER TRANSACTION EXPENSES
Maximum Sales Charge Imposed on Purchases ............................................    None
Maximum Sales Charge Imposed on Reinvested Dividends .................................    None
Contingent Deferred Sales Charge
  (as a percentage of the lesser of original purchase price or redemption proceeds)  .    5.0%
</TABLE>

  A contingent deferred sales charge is imposed at the following declining
rates:

<TABLE>
<CAPTION>
 YEAR SINCE PURCHASE PAYMENT MADE        PERCENTAGE
                                      --------------
<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>

<TABLE>
<CAPTION>
<S>                                                                           <C>
 Redemption Fees ..........................................................   None
Exchange Fee .............................................................    None
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)
Management Fees ..........................................................    0.75%
12b-1 Fees* ..............................................................    1.00%
Other Expenses ...........................................................    0.30%
Total Fund Operating Expenses ............................................    2.05%
</TABLE>
- --------------------
* A portion of the 12b-1 fee equal to 0.25% of the Fund's average daily
  net assets is characterized as a service fee within the meaning of
  National Association of Securities Dealers, Inc. ("NASD") guidelines
  (see "Purchase of Fund Shares").

<TABLE>
<CAPTION>
<S>                                                                <C>         <C>          <C>          <C>
 EXAMPLE                                                           1 year      3 years      5 years      10 years
- ---------                                                         ----------  -----------  -----------  ------------
You would pay the following expenses on a $1,000 investment,
 assuming (1) 5% annual return and (2) redemption at the end of
 each time period: ............................................... $71         $94          $130         $238
You would pay the following expenses on the same investment,
 assuming no redemption: ......................................... $21         $64          $110         $238
</TABLE>

   The above example should not be considered a representation of past or
future expenses or performance. Actual expenses of the Fund 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
"The Fund and its Management," "Plan of Distribution" and "Redemption and
Repurchases."

   Long-term shareholders of the Fund may pay more in sales charges and
distribution fees than the economic equivalent of the maximum front-end sales
charges permitted by the NASD.

                                3



     
<PAGE>

FINANCIAL HIGHLIGHTS
- -----------------------------------------------------------------------------

   The following ratios and per share data for a share of beneficial interest
outstanding throughout each period have been audited by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in
conjunction with the financial statements, notes thereto, and the unqualified
report of independent accountants which are contained in the Statement of
Additional Information. Further information about the performance of the Fund
is contained in the Fund's Annual Report to Shareholders, which may be
obtained without charge upon request to the Fund.

<TABLE>
<CAPTION>
                                                              FOR THE PERIOD
                                             FOR THE YEAR   SEPTEMBER 29, 1994*
                                            ENDED MAY 31,     THROUGH MAY 31,
                                                 1996              1995
                                           --------------  -------------------
<S>                                        <C>             <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period  ....     $ 10.81           $  10.00
                                           --------------  -------------------
Net investment loss ......................       (0.10)             (0.01)
Net realized and unrealized gain  ........        5.60               0.84
                                           --------------  -------------------
Total from investment operations  ........        5.50               0.83
                                           --------------  -------------------
Less distributions from net realized gain        (1.20)             (0.02)
                                           --------------  -------------------
Net asset value, end of period ...........     $ 15.11           $  10.81
                                           ==============  ===================
TOTAL INVESTMENT RETURN+                         53.02%              8.26%  (1)
Ratios To Average Net Assets:
Expenses .................................        2.05%              2.21%  (2)
Net investment loss ......................       (1.05)%            (0.16)% (2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands  .    $309,272           $115,126
Portfolio turnover rate ..................         328%               199%  (1)
Average commission rate paid .............     $0.0582                 --
</TABLE>
- ------------

*   Commencement of operations.

+   Does not reflect the deduction of sales charge.

(1) Not annualized.

(2) Annualized.


                                4



     
<PAGE>

THE FUND AND ITS MANAGEMENT
- -----------------------------------------------------------------------------

   Dean Witter Mid-Cap Growth 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 May 25, 1994.

   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 Dean Witter,
Discover & Co. ("DWDC"), a balanced financial services organization providing
a broad range of nationally marketed credit and investment products.

   InterCapital and its wholly-owned subsidiary, Dean Witter Services Company
Inc., serve in various investment management, advisory, management and
administrative capacities to ninety-eight investment companies, thirty of
which are listed on the New York Stock Exchange, with combined assets of
approximately $81.8 billion at June 30, 1996. The Investment Manager also
manages portfolios of pension plans, other institutions and individuals which
aggregated approximately $2.8 billion at such date.

   The Fund has retained the Investment Manager to provide administrative
services, manage its business affairs and manage the investment of the Fund's
assets, including the placing of orders for the purchase and sale of
portfolio securities. InterCapital has retained Dean Witter Services Company
Inc. to perform the aforementioned administrative services for the Fund.

   The Fund's Trustees review the various services provided by the Investment
Manager 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.

   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 0.75% to the Fund's net assets. This fee is higher than the
fee paid by most other investment companies. For the fiscal year ended May
31, 1996, the Fund accrued total compensation to the Investment Manager
amounting to 0.75% of the Fund's average daily net assets and the Fund's
total expenses amounted to 2.05% of the Fund's average daily net assets.

INVESTMENT OBJECTIVE AND POLICIES
- -----------------------------------------------------------------------------

   The investment objective of the Fund is long-term capital growth. The
objective is a fundamental policy of the Fund and may not be changed without
a vote of a majority of the outstanding voting securities of the Fund. There
is no assurance that the objective will be achieved. The following policies
may be changed by the Board of Trustees without shareholder approval.

   The Fund seeks to achieve its investment objective by investing, under
normal circumstances, at least 65% of its total assets in a diversified
portfolio of domestic and foreign equity securities of "mid-cap" companies. A
mid-cap company is a company whose market capitalization falls within the
range of $250 million to $5 billion. The Fund may invest up to 35% of its
total assets in (i) U.S. Government Securities and investment grade corporate
debt securities; or (ii) equity securities of companies with market
capitalizations which fall outside of the range of $250 million to $5 billion
at the time of purchase as long as such investments are consistent with the
Fund's investment objective. The Fund may invest up to 35% of its total
assets in the equity securities of non-U.S. companies, including American or
other Depository Receipts, rights, warrants, and the direct purchase of
foreign securities. Equity securities in which the Fund may invest include
common stocks and securities convertible into common stocks. The Fund
utilizes an investment process that places primary emphasis on seeking to
identify industries, rather than individual companies, as prospects for
capital appreciation and whereby the Investment Manager seeks to invest
assets of the Fund in industries it considers to be attractive at the time of
purchase and to sell those it considers overvalued. The Investment Manager
will invest principally in those mid-cap companies that in the opinion of the
Investment Manager have above-average relative growth potential. Mid-cap
companies typically have a better growth potential than their large-cap
counterparts because they are still in the early and more dynamic period of
their corporate existences. Often mid-size companies and the industries in
which they are focused are still evolving as opposed to the more mature
industries served by large-cap companies. Moreover, mid-cap companies are not
considered "emerging" stocks, nor are they as volatile as small-cap firms.
This is due to the fact that mid-cap companies have increased liquidity,
attributable to their larger market capitalization as well as longer and more
established track records, and a stronger market presence and dominance than
small-cap firms. Consequently, because of the better growth inherent in these
companies and their industries, mid-cap companies offer superior return
potential to

                                5



     
<PAGE>

large-cap companies, yet owing to their relatively larger size and better
recognition in the investment community, they have a reduced risk profile
compared to smaller, emerging or micro-cap companies.

   In selecting stocks within the mid-cap universe, the Investment Manager
will use an industry approach that seeks to diversify the assets of the Fund
in approximately 18 to 35 industries. The Fund will hold less than 5% of its
net assets in any one security and will hold less than 10% of its net assets
in any one industry. Companies will be selected based on at least three-year
track records, and purchases will be primarily focused on companies that: (1)
have the potential for above-average relative earnings growth; (2) are
focused in industries that are rapidly expanding or have the potential to see
increasing sales or earnings; (3) historically have had well-defined and
recurring revenues; or (4) are attractive based on an assessment of private
market or franchise values.

   After selection of the Fund's target industries, specific company
investments are selected. In this process, the Investment Manager seeks to
identify companies whose prospects are deemed attractive on the basis of an
evaluation of valuation screens and prospective company fundamentals. From
the total of all companies included in the industry valuation process, the
Investment Manager selects a limited number from each industry as
representative of that industry. Such selections are made on the basis of
various criteria, including size and quality of a company, the visibility of
its earnings and various valuation parameters. Valuation screens may include
dividend discount model values, price-to-book ratios, price-to-cash flow
values, relative and absolute price-to-earnings ratios and ratios of
price-earnings multiples to earnings growth. Price and earnings momentum
ratings derived from external sources are also factored into the stock
selection decision. Those companies which the Investment Manager believes to
be attractive investments are finally selected for inclusion in the Fund. For
a discussion of the risks of mid-cap stocks, see "Risk Considerations" below.

ASSET ALLOCATION. Common stocks, particularly those sought for possible
capital appreciation, have historically experienced a great amount of price
fluctuation. The Investment Manager believes it is desirable to attempt to
reduce the risks of extreme price fluctuations even if such an attempt
results, as it likely will at times, in reducing the probabilities of
obtaining greater capital appreciation. Accordingly, the Investment Manager's
investment process incorporates elements which may reduce, although certainly
not eliminate, the volatility of a portfolio. The Fund may hold a portion of
its portfolio in investment grade fixed-income securities, including
convertible securities, in an effort to moderate extremes of price
fluctuation. The determination of the appropriate asset allocation as between
equity and fixed-income investments will be made by the Investment Manager in
its discretion, based upon its evaluation of economic and market conditions.

PORTFOLIO CHARACTERISTICS

FIXED-INCOME SECURITIES. Investments in fixed-income securities rated either
BBB by S&P or Baa by Moody's (the lowest credit ratings designated
"investment grade") have speculative characteristics and, therefore, changes
in economic conditions or other circumstances are more likely to weaken their
capacity to make principal and interest payments than would be the case with
investments in securities with higher credit ratings. If a non-convertible
fixed-income security held by the Fund is rated BBB or Baa and is
subsequently downgraded by a rating agency, the Fund will retain such
security in its portfolio until the Investment Manager determines that it is
practicable to sell the security without undue market or tax consequences to
the Fund. In the event that such downgraded securities constitute 5% or more
of the Fund's net assets, the Investment Manager will sell such securities as
soon as is practicable, in sufficient amounts to reduce the total to below
5%.

CONVERTIBLE SECURITIES. The Fund may acquire, through purchase or a
distribution by the issuer of a security held in its portfolio, a
fixed-income security which is convertible into common stock of the issuer.
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.

                                6



     
<PAGE>

   Because of the special nature of the Fund's permitted investments in lower
rated convertible securities, the Investment Manager must take account of
certain special considerations in assessing the risks associated with such
investments. The prices of lower rated 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 lower rated convertible 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 increased volatility
of market prices of lower rated securities and a corresponding volatility in
the net asset value of a share of the Fund.

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.
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. 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
money market instruments, which are maintained in a segregated account
pursuant to applicable regulations and that are equal to at least the market
value, determined daily, of the loaned securities. 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, loans of portfolio securities will only be made to
firms deemed by the Investment Manager to be creditworthy and when the income
which can be earned from such loans justifies the attendant risks.

PRIVATE PLACEMENTS. The Fund may invest up to 5% of its total 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 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 Adviser, 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.

OPTIONS. The Fund also may purchase and sell (write) call and put options on
debt and equity securities which are listed on Exchanges or are written in
over-the-counter transactions ("OTC Options"). Listed options, which are
currently listed on several different Exchanges, are issued by the Options
Clearing Corporation ("OCC"). Ownership of a listed call option gives the
Fund the right to buy from the OCC the underlying security covered by the
option at the stated exercise price (the price per unit of the underlying
security) 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 to the OCC the underlying security 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

                                7



     
<PAGE>

right to sell the underlying security to the OCC at the stated exercise
price. The Fund will not write covered options on portfolio securities
exceeding in the aggregate 25% of the value of its total assets.

OTC OPTIONS. 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. The Fund will
engage in OTC option transactions only with primary U.S. Government
securities dealers recognized by the Federal Reserve Bank of New York.

COVERED CALL WRITING. The Fund is permitted to write covered call options on
portfolio securities in order to aid it in achieving its investment
objective. As a writer of a call option, the Fund has the obligation, upon
notice of exercise of the option, to deliver the security underlying the
option (certain listed call options written by the Fund will be exercisable
by the purchaser only on a specific date). See "Options and Futures
Transactions--Covered Call Writing" in the Statement of Additional
Information.

COVERED PUT WRITING. As a writer of covered put options, the Fund incurs an
obligation to buy the security underlying the option from the purchaser of
the put at the option's exercise price at any time during the option period.
The Fund will write put options for two purposes: (1) to receive the premiums
paid by purchasers; and (2) when the Investment Manager wishes to purchase
the security underlying the option at a price lower than its current market
price, in which case it will write the covered put at an exercise price
reflecting the lower purchase price sought. See "Options and Futures
Transactions--Covered Put Writing" in the Statement of Additional
Information.

PURCHASING CALL AND PUT OPTIONS. The Fund may invest up to 5% of its total
assets in the purchase of put and call options on securities and stock
indexes. The Fund may purchase put options on securities which it holds (or
has the right to acquire) in its portfolio only to protect itself against a
decline in the value of the security. The Fund may also purchase put options
to close out written put positions in a manner similar to call option closing
purchase transactions. There are no other limits on the Fund's ability to
purchase call and put options.

STOCK INDEX OPTIONS. The Fund may purchase and write options on stock indexes
only for hedging purposes. 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. See "Stock Index Options" and "Risks of Options on Indexes" in the
Statement of Additional Information.

FUTURES CONTRACTS. The Fund may purchase and sell interest rate and stock
index futures contracts ("futures contracts") that are traded on U.S.
commodity exchanges on such underlying securities as U.S. Treasury bonds,
notes, and bills and GNMA Certificates ("interest rate" futures) and such
indexes as the S&P 500 Index and the New York Stock Exchange Composite Index
("stock index" futures) and the Moody's Investment-Grade Corporate Bond Index
("bond index" futures). As a futures contract purchaser, the Fund incurs an
obligation to take delivery 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 and bond index futures contracts for the purpose of
hedging its fixed-income portfolio (or anticipated portfolio) securities
against changes in prevailing interest rates. The Fund will purchase or sell
stock index futures contracts for the purpose of hedging its equity portfolio
(or anticipated portfolio) securities against changes in their prices. See
"Options and Futures Transactions--Futures Contracts" in the Statement of
Additional Information.

   The Fund also may purchase and write call and put options on futures
contracts and enter into closing transactions with respect to such options to
terminate an existing position.




     

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 designed to minimize those
risks. These procedures include effecting repurchase transactions only with
large, well-capitalized and well-established financial institutions whose
financial condition will be continually monitored by the Investment Manager
subject to procedures established by the Board of Trustees of the Fund. In
addition, as described above, the value of the collateral underlying the
repurchase agreement will be at least equal to the repurchase price,
including any accrued interest earned on the repurchase agreement. In

                                8




     
<PAGE>

the event of a default or bankruptcy by a selling financial institution, the
Fund will seek to liquidate such collateral. However, the exercising of the
Fund's right to liquidate such collateral could involve certain costs or
delays and, to the extent that proceeds from any sale upon a default of the
obligation to repurchase were less than the repurchase price, the Fund could
suffer a loss. It is the current policy of the Fund not to invest in
repurchase agreements that do not mature within seven days if any such
investment, together with any other illiquid assets held by the Fund, amounts
to more than 15% of its net assets.

FOREIGN SECURITIES. The Fund may invest up to 35% of the value of its total
assets, at the time of purchase, in equity securities, rights and warrants
issued by foreign issuers. Such investments may also be in the form of
American Depository Receipts (ADRs), European Depository Receipts (EDRs) or
other similar 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. EDRs
are European receipts evidencing a similar arrangement. Generally, ADRs, in
registered form, are designed for use in the United States securities markets
and EDRs, in bearer form, are designed for use in European securities
markets. The Fund's investments in unlisted foreign securities are subject to
the Fund's overall policy limiting its investment in illiquid securities to
15% or less of its net assets. For a discussion of the risks of foreign
securities, see "Risk Considerations" below.

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.

INVESTMENT IN REAL ESTATE INVESTMENT TRUSTS. The Fund may invest in real
estate investment trusts, which pool investors' funds for investments
primarily in commercial real estate properties. Investment in real estate
investment trusts may be the most practical available means for the Fund to
invest in the real estate industry (the Fund is prohibited from investing in
real estate directly). As a shareholder in a real estate investment trust,
the Fund would bear its ratable share of the real estate investment trust's
expenses, including its advisory and administration fees. At the same time
the Fund would continue to pay its own investment management 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 real
estate investment trusts. Real estate investment trusts are not diversified
and are subject to the risk of financing projects. They are also subject to
heavy cash flow dependency, defaults by borrowers or tenants,
self-liquidation, and the possibility of failing to qualify for tax-free
status under the Internal Revenue Code and failing to maintain exemption from
the Investment Company Act of 1940, as amended.

PORTFOLIO MANAGEMENT

The Fund's portfolio is actively managed by its Investment Manager with a
view to achieving the Fund's investment objective. In determining which
securities to purchase for the Fund or hold in the Fund's portfolio, the
Investment Manager will rely on information from various sources, including
research, analysis and appraisals of brokers and dealers, including Dean
Witter Reynolds Inc. ("DWR"), a broker-dealer affiliate of InterCapital, the
views of Trustees of the Fund and others regarding economic developments and
interest rate trends, and the Investment Manager's own analysis of factors it
deems relevant. No particular emphasis is given to investments in securities
for the purpose of earning current income. The Fund's portfolio is managed
within InterCapital's Growth Group, which manages twenty-six funds and fund
portfolios with approximately $11 billion in assets as of June 30, 1996.
Anita H. Kolleeny, Senior Vice President of InterCapital, and Kirk Balzer,
Vice President of InterCapital, each a member of InterCapital's Growth Group,
have been the primary portfolio co-managers of the Fund since the inception
of the Fund and April 1996, respectively. Ms. Kolleeny has been a portfolio
manager at InterCapital for over five years. Prior to joining InterCapital in
April 1996, Mr. Balzer was a portfolio manager at Chancellor Capital
Management (July 1994-March 1996) and GT Capital Management (June 1992-July
1994) and prior thereto was a graduate student at the University of Chicago.

                                9



     
<PAGE>

   The Fund intends to buy and hold securities for capital appreciation.
Although the Fund does not intend to engage in substantial short-term trading
as a means of achieving its investment objective, it may sell portfolio
securities without regard to the length of time they have been held, in
accordance with the investment policies described earlier. Portfolio changes
will be effected whenever the Fund's Investment Manager believes they will
benefit the performance of the portfolio. As a result the Fund does expect to
engage in a substantial number of portfolio transactions. It is anticipated
that, under normal market conditions, the Fund's portfolio turnover rate will
not exceed 350% in any one year. The Fund will incur brokerage costs
commensurate with its portfolio turnover rate; thus a higher level (over
100%) of portfolio transactions will increase the Fund's overall brokerage
expenses. Short term gains and losses may result from such portfolio
transactions. See "Dividends, Distributions and Taxes" for a 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.

   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.

RISK CONSIDERATIONS
- -----------------------------------------------------------------------------

   The net asset value of the Fund's shares will fluctuate with changes in
the market value of its 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. The Fund is intended
for long-term investors who can accept the risks involved in seeking
long-term growth of capital through investment primarily in the securities of
medium-sized growth companies. It should be recognized that investing in such
companies involves greater risk than is customarily associated with investing
in more established companies.

MID-CAP STOCKS. Investing in medium-sized market capitalization companies may
involve greater risk of volatility of the Fund's net asset value than is
customarily associated with investing in larger, more established companies.
Often mid-size companies and the industries in which they are focused are
still evolving and while this may offer better growth potential than larger,
established companies, it also may make them more sensitive to changing
market conditions. Because prices of stocks, including mid-cap stocks,
fluctuate from day to day, the value of an investment in the Fund will vary
based upon the Fund's investment performance.

FOREIGN SECURITIES. The Fund may invest up to 35% of its total assets in
equity securities of non-U.S. companies, including American or other
Depository Receipts, rights, warrants and the direct purchase of foreign
securities. While investments in foreign securities are intended to reduce
risk by providing further diversification, such investments involve risks
relating to local foreign political or economic developments, potential
nationalization, withholding taxes on dividend or interest payments, and
limitations on the use or transfer of Fund assets and any effects of foreign
social, economic or political instability. 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. Costs may be incurred in connection with conversions between various
currencies held by the Fund. Foreign companies may have less public or less
reliable information available about them and may be subject to less
governmental regulation than U.S. companies. Securities of foreign companies
may be less liquid and more volatile than securities of 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 the Fund's trades effected in
such markets. As such, the 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. To the
extent the Fund purchases Eurodollar certificates of deposit issued by
foreign branches of domestic United States banks, consideration will be given
to their domestic marketability, the lower reserve requirements normally
mandated for overseas banking operations, the possible impact of
interruptions in the flow of international currency transactions and future
international political and economic developments which might adversely
affect the payment of principal or interest.

                               10



     
<PAGE>

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. Also, 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 Internal Revenue 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 Investment Manager 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, causing bond prices to rise, the Fund would incur a loss 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 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. See the Statement of Additional
Information for a further discussion of risks.

   New futures contracts, options and other financial products and various
combinations thereof continue to be developed. The Fund may invest in any
such futures, options or products as may be developed, to the extent
consistent with its investment objective and applicable regulatory
requirements.

   For additional risk disclosure, please refer to the "Portfolio
Characteristics" section of the Prospectus and to the "Investment Practices
and Policies" section of 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 subsequent 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. 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).

   2. Purchase more than 10% of all outstanding voting securities or any
class of securities of any one issuer.

   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.

   4. Invest more than 5% of the value of its total assets in securities of
issuers having a record, together with predecessors, of less than three years
of continuous operation. This restriction shall not apply to any obligation
of the United States Government, its agencies or instrumentalities.

   See the Statement of Additional Information for additional investment
restrictions.

PURCHASE OF FUND SHARES
- -----------------------------------------------------------------------------

   The Fund offers 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 who 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.

                               11



     
<PAGE>

   The minimum initial purchase is $1,000. Minimum subsequent purchases of
$100 or more may be made by sending a check, payable to Dean Witter Mid-Cap
Growth Fund, directly to Dean Witter Trust Company (the "Transfer Agent") at
P.O. Box 1040, Jersey City, NJ 07303 or by contacting an account executive of
DWR or other Selected Broker-Dealer. The minimum initial purchase in the case
of investments through EasyInvest (Service Mark), 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. In the case of investments pursuant to
Systematic Payroll Deduction Plans (including Individual Retirement Plans),
the Fund, in its discretion, may accept investments without regard to any
minimum amounts which would otherwise be required 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.

   The offering price will be the net asset value per share next determined
following receipt of an order by the Transfer Agent (see "Determination of
Net Asset Value"). While no sales charge is imposed at the time shares are
purchased, a contingent deferred sales charge may be imposed at the time of
redemption (see "Repurchases and Redemptions"). Sales personnel are
compensated for selling shares of the Fund at the time of their sale by the
Distributor and/or 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.

   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. Shares
of the Fund purchased through the Distributor are entitled to any dividends
declared beginning on the next business day following settlement date. 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. Shares purchased through the Transfer Agent are entitled
to any dividends declared beginning on the next business day following
receipt of an order. As noted above, orders placed directly with the Transfer
Agent must be accompanied by payment.

PLAN OF DISTRIBUTION

The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under the
Act (the "Plan"), under which the Fund pays the Distributor a fee, which is
accrued daily and payable monthly, at an annual rate of 1.0% of the lesser
of: (a) the average daily aggregate gross sales of the Fund's shares since
the inception of the Fund (not including reinvestments of dividends or
capital gains distributions), less the average daily aggregate net asset
value of the Fund's shares redeemed since the Fund's inception upon which a
contingent deferred sales charge has been imposed or waived; or (b) the
Fund's average daily net assets. This fee is treated by the Fund as an
expense in the year it is accrued. A portion of the fee payable pursuant to
the Plan, equal to 0.25% of the Fund's average daily net assets, is
characterized as a service fee within the meaning of NASD guidelines. The
service fee is a payment made for personal service and/or the maintenance of
shareholder accounts.

   Amounts paid under the Plan are paid to the Distributor for services
provided and the expenses borne by the Distributor and others in the
distribution of the Fund's shares, including the payment of commissions for
sales of the Fund's shares and incentive compensation to and expenses of
DWR's account executives 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 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.

   For the fiscal year ended May 31, 1996, the Fund accrued payments under
the Plan amounting to $1,958,421, which amount is equal to 1.0% of the Fund's
average daily net assets for the fiscal year. The payments accrued under the
Plan were calculated pursuant to clause (b) of the compensation formula under
the Plan.

   At any given time, the expenses in distributing 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 contingent deferred sales charges paid by
investors upon the redemption of shares (see "Redemption and
Repurchases--Contingent Deferred Sales Charge"). For example, if $1 million
in expenses in distributing 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. The Distributor has advised the Fund that such
excess amount, including the carrying charge described above, totalled
$9,085,300 at May 31, 1996, which was equal to 2.94% of the Fund's net assets
on such date.




     

   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

                               12



     
<PAGE>

year, this 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 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 distribution fees
or contingent deferred sales charges, may or may not be recovered through
future distribution fees or contingent deferred sales charges.

DETERMINATION OF NET ASSET VALUE

The net asset value per share 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), by taking the value of all assets
of the Fund, subtracting all its liabilities, dividing by the number of
shares outstanding and adjusting to the nearest cent. 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 or quoted by NASDAQ is valued at its
latest sale price on that exchange or quotation service prior to the time
assets are valued; if there were no sales that day, the security is valued at
the latest bid price (in cases where a security is traded on more than one
exchange, the security is valued on the exchange designated as the primary
market pursuant to procedures adopted by the Trustees); (2) an option is
valued at the mean between the latest bid and asked prices; (3) a futures
contract is valued at the latest sales price on the commodities exchange on
which it trades unless the Board determines that such price does not reflect
its market value, in which case it will be valued at its fair value as
determined by the Board of Trustees; (4) all other portfolio securities for
which over-the-counter market quotations are readily available are valued at
the latest bid price; (5) when market quotations are not readily available,
including circumstances under which it is determined by the Investment
Manager 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 (valuation of debt securities for which market
quotations are not readily available may be based upon current market prices
of securities which are comparable in coupon, rating and maturity or an
appropriate matrix utilizing similar factors); (6) the value of short-term
debt securities which mature at a date less than sixty days subsequent to
valuation date will be determined on an amortized cost or amortized value
basis; and (7) the value of other assets will be determined in good faith at
fair value 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. Interest income
is accrued daily except when collection is uncertain.

   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 Fund (or, if specified by the shareholder, any other open-end
investment company for which InterCapital serves as investment manager
(collectively, with the Fund, the "Dean Witter Funds")), unless the
shareholder requests that they be paid in cash. Shares so acquired are not
subject to the imposition of a contingent deferred sales charge upon their
redemption (see "Redemptions and Repurchases").

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 at the net asset value
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 not subject to the imposition of a contingent
deferred sales charge upon their redemption (see "Redemptions and
Repurchases").

EASYINVEST (SERVICE MARK). 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, on a
semi-monthly,

                               13



     
<PAGE>

monthly or quarterly basis, to the Transfer Agent for investment in shares of
the Fund (see "Purchase of Fund Shares" and "Redemptions and
Repurchases--Involuntary Redemption").

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 amount, not less than $25, or in any
whole percentage of the account balance, on an annualized basis. Any
applicable contingent deferred sales charge will be imposed on shares
redeemed under the Withdrawal Plan (See "Redemptions and
Repurchases--Contingent Deferred Sales Charge"). 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
contingent deferred sales charge) to the shareholder will be the designated
monthly or quarterly amount.

   Shareholders should contact their DWR or other Selected Broker-Dealer
account executive or the Transfer Agent for further information about any of
the above services.

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.

   For further information regarding plan administration, custodial fees and
other details, investors should contact their DWR or other Selected
Broker-Dealer account executive or the Transfer Agent.

EXCHANGE PRIVILEGE

The Fund makes available to its shareholders an "Exchange Privilege" allowing
the exchange of shares of the Fund for shares of other Dean Witter Funds sold
with a contingent deferred sales charge ("CDSC funds"), and for shares of
Dean Witter Short-Term U.S. Treasury Trust, Dean Witter Limited Term
Municipal Trust, Dean Witter Short-Term Bond Fund, Dean Witter Balanced
Income Fund, Dean Witter Balanced Growth Fund, Dean Witter Intermediate Term
U.S. Treasury Trust and five Dean Witter Funds which are money market funds
(the foregoing eleven non-CDSC funds are hereinafter collectively referred to
in this section as the "Exchange Funds.") 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 CDSC fund 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 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 day. Subsequent exchanges between any of
the money market funds and any of the CDSC funds can be effected on the same
basis. No contingent deferred sales charge ("CDSC") is imposed at the time of
any exchange, although any applicable CDSC will be imposed upon ultimate
redemption. Shares of the Fund acquired in exchange for shares of another
CDSC fund having a different CDSC schedule than that of this Fund will be
subject to the CDSC schedule of this Fund, even if such shares are
subsequently re-exchanged for shares of the CDSC fund originally purchased.
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 (for the purpose of determining the rate of
the CDSC) is frozen. If those shares are subsequently reexchanged for shares
of a CDSC fund, the holding period previously frozen when the first exchange
was made resumes on the last day of the month in which shares of a CDSC fund
are reacquired. Thus, the CDSC is based upon the time (calculated as
described above) the shareholder was invested in a CDSC fund (see
"Redemptions and Repurchases--Contingent Deferred Sales Charge"). However, in
the case of shares exchanged into 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, if any, 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.)

   In addition, shares of the Fund may be acquired in exchange for shares of
Dean Witter Funds sold with a front-end sales charge ("front-end sales charge
funds"), but shares of the Fund, however acquired, may not be exchanged for
shares of front-end sales charge funds. Shares of a CDSC fund acquired in
exchange for shares of a front-end sales charge fund (or in exchange for
shares of other Dean Witter Funds for which shares of a front-end sales
charge fund have been exchanged) are not subject to any CDSC upon their
redemption.

   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

                               14



     
<PAGE>

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 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 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 account executive 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
and any other conditions imposed by each fund. 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 Dean
Witter Funds (for which the Exchange Privilege is available) pursuant to this
Exchange Privilege by contacting their account executive (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 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 Transfer Agent,
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 DWR or other
Selected Broker-Dealer account executive, 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 Dean Witter Funds in the past.

   For further information regarding the Exchange Privilege, shareholders
should contact their account executive or the Transfer Agent.

REDEMPTIONS AND REPURCHASES
- -----------------------------------------------------------------------------

   REDEMPTION. Shares 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 contingent deferred sales
charge (see below). If shares are held in a shareholder's account without a
share certificate, a written request for redemption sent 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, along
with any additional documentation required by the Transfer Agent.

                               15



     
<PAGE>

CONTINGENT DEFERRED SALES CHARGE. 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 charge upon
redemption. Shares redeemed sooner than six years after purchase may,
however, be subject to a charge upon redemption. This charge is called a
"contingent deferred sales charge" ("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 table below:

<TABLE>
<CAPTION>
                               CONTINGENT DEFERRED
         YEAR SINCE             SALES CHARGE AS A
          PURCHASE            PERCENTAGE OF AMOUNT
        PAYMENT MADE                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>

   A CDSC will not be imposed on: (i) any amount which represents an increase
in value of shares purchased within the six years preceding the redemption;
(ii) the current net asset value of shares purchased more than six years
prior to the redemption; and (iii) the current net asset asset value of
shares purchased through reinvestment of dividends or distributions and/or
shares acquired in exchange for shares of Dean Witter Funds sold with a
front-end sales charge or of other 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 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
corporate or self-employed retirement plan qualified under Section 401(k) of
the Internal Revenue Code 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 Dean Witter Trust
Company, an affiliate of the Investment Manager, serves as recordkeeper or
Trustee ("Eligible 401(k) Plan"), provided that either: (A) the plan
continues to be an Eligible 401(k) 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.

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 per share next determined (see "Purchase of Fund Shares")
after such purchase 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 upon repurchase by the
Fund, the Distributor, DWR or other Selected Broker-Dealer. The offer 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, payment of the redemption proceeds may be
delayed for the minimum time needed to

                               16



     
<PAGE>

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 Dealer
are referred to their account executive 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 thirty 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 at the 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, upon 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 Internal Revenue 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 Fund's Trustees or, in the case of an account
opened through EasyInvest(Service Mark), 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 intends to distribute substantially all
of its 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 distribute or to retain all or part of any net long-term
capital gains in any year for reinvestment.

   All dividends and any capital gains distributions will be paid in
additional Fund shares and automatically credited to the shareholder's
account without issuance of a share certificate unless the shareholder
requests in writing that all dividends be paid in cash. (See "Shareholder
Services--Automatic Investment of Dividends and Distributions".)

TAXES. Because the Fund intends to distribute all of its net investment
income and net short-term capital gains to shareholders and otherwise remain
qualified as a regulated investment company under Subchapter M of the
Internal Revenue Code, it is not expected that the Fund will be required to
pay any federal income tax. Shareholders who are required to pay taxes on
their income will normally have to pay federal income taxes, and any state
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 or 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.

   One of the requirements for the Fund to remain qualified as a regulated
investment company is that less than 30% of the Fund's gross income be
derived from gains from the sale or other disposition of securities held for
less than three months. Accordingly, the Fund may be restricted in the
writing of options on securities held for less than three months, in the
writing of options which expire in less than three months, and in effecting
closing transactions with respect to call or put options which have been
written or purchased less than three months prior to such transactions. The
Fund may also be restricted in its ability to engage in transactions
involving futures contracts.

   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.

   After the end of the calendar year, shareholders will be sent full
information on their dividends and capital gains distributions for tax
purposes, including information as to the portion taxable as ordinary income,
the portion taxable as long-term capital gains, and the amount of dividends
eligible for the Federal dividends received deduction available to
corporations. 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.

   Shareholders should consult their tax advisers as to the applicability of
the foregoing to their current situation.

                               17



     
<PAGE>

PERFORMANCE INFORMATION
- -----------------------------------------------------------------------------

   From time to time the Fund may quote its "total return" in advertisements
and sales literature. 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 the Fund of $1,000 over periods of one, five and ten years, or
over the life of the Fund, if less than any of the foregoing. 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 Fund and all
sales charges which would be incurred by redeeming 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 over
different periods of time by means of aggregate, average, 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 shares of the
Fund. Such calculations may or may not reflect the deduction of the
contingent deferred 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., the S&P Mid-Cap Index, NASDAQ Composite, Russell
Mid Cap Index, S&P 500 Index and the Wilshire Mid Cap Index).

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. There
are no conversion, pre-emptive or other subscription rights. In the event of
a liquidation, each share of beneficial interest of the Fund is entitled to
its portion of all the Fund's assets after all debts and expenses have been
paid. The shares do not have cumulative voting rights.

   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
shareholder 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. Directors, 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 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 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.

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.

                               18



     
<PAGE>

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<PAGE>

   DEAN WITTER
   MID-CAP GROWTH FUND
   TWO WORLD TRADE CENTER
   NEW YORK, NEW YORK 10048


   TRUSTEES

   Michael Bozic
   Charles A. Fiumefreddo
   Edwin J. Garn
   John R. Haire
   Dr. Manuel H. Johnson
   Michael E. Nugent
   Philip J. Purcell
   John L. Schroeder


   OFFICERS

   Charles A. Fiumefreddo
   Chairman and Chief Executive Officer

   Sheldon Curtis
   Vice President, Secretary and
   General Counsel

   Anita H. Kolleeny
   Vice President

   Kirk Balzer
   Vice President

   Thomas F. Caloia
   Treasurer


   CUSTODIAN

   The Bank of New York
   90 Washington Street
   New York, New York 10286


   TRANSFER AGENT AND
   DIVIDEND DISBURSING AGENT

   Dean Witter Trust Company
   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.







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