WITTER DEAN WORLD WIDE INCOME TRUST
497, 1996-12-31
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<PAGE>
              PROSPECTUS
              DECEMBER 24, 1996
 
              Dean Witter World Wide Income Trust (the "Fund") is an open-end,
non-diversified management investment company, whose primary investment
objective is to provide a high level of current income. As a secondary
objective, the Fund will seek appreciation in the value of its assets. The Fund
seeks to achieve its investment objectives by investing primarily in
fixed-income securities issued or guaranteed by foreign governments, issued by
foreign or U.S. companies, or issued or guaranteed by the U.S. Government, its
agencies and instrumentalities. See "Investment Objectives and Policies."
 
               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 Distributor. See "Redemptions and
Repurchases--Contingent Deferred Sales Charge." In addition, the Fund pays the
Distributor a distribution fee pursuant to a Plan of Distribution at the annual
rate of 0.85% 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 December 24, 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.
 
    DEAN WITTER DISTRIBUTORS INC.
    DISTRIBUTOR
 
    TABLE OF CONTENTS
 
Prospectus Summary/2
Summary of Fund Expenses/3
Financial Highlights/4
The Fund and Its Management/5
Investment Objectives and Policies/5
  Risk Considerations/8
Investment Restrictions/16
Purchase of Fund Shares/17
Shareholder Services/19
Redemptions and Repurchases/22
Dividends, Distributions and Taxes/24
Performance Information/26
Additional Information/26
 
SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, AND THE SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT
INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
    Dean Witter
    World Wide Income Trust
    Two World Trade Center
    New York, New York 10048
    (212) 392-2550 or (800) 869-NEWS (toll-free)
<PAGE>
PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                 <C>
The                 The Fund is organized as a Trust, commonly known as a Massachusetts business trust, and is an open- end,
Fund                non-diversified management investment company. The Fund invests primarily in fixed-income securities issued or
                    guaranteed by foreign governments, issued by foreign or U.S. companies, or issued or guaranteed by the U.S.
                    Government, its agencies and instrumentalities.
- ------------------------------------------------------------------------------------------------------------------------------------
Shares              Shares of beneficial interest with $.01 par value (see page 26).
Offered
- ------------------------------------------------------------------------------------------------------------------------------------
Offering            At net asset value without sales charge (see page 17). Shares redeemed within six years of purchase are subject
Price               to a contingent deferred sales charge under most circumstances (see page 22).
- ------------------------------------------------------------------------------------------------------------------------------------
Minimum             Minimum initial investment, $1,000 ($100 if the account is opened through EasyInvestSM); minimum subsequent
Purchase            investments, $100 (see page 17).
- ------------------------------------------------------------------------------------------------------------------------------------
Investment          The primary investment objective of the Fund is to provide a high level of current income. As a secondary
Objectives          objective, the Fund will seek appreciation in the value of its assets.
- ------------------------------------------------------------------------------------------------------------------------------------
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 100 investment companies and other portfolios with assets of approximately $91
                    billion at November 30, 1996 (see page 5).
- ------------------------------------------------------------------------------------------------------------------------------------
Management          The Investment Manager receives a monthly fee at the annual rate of 0.75% of the Fund's daily net assets, scaled
Fee                 down at various asset levels to 0.30% of the Fund's daily net assets on assets in excess of $1 billion (see page
                    5).
- ------------------------------------------------------------------------------------------------------------------------------------
Dividends           Dividends from net investment income are declared and paid monthly. Capital gains, if any, are paid at least
and                 annually. Dividends and capital gains distributions are automatically reinvested in additional shares at net
Distributions       asset value unless the shareholder elects to receive cash (see page 24).
- ------------------------------------------------------------------------------------------------------------------------------------
Distributor         Dean Witter Distributors Inc. (the "Distributor"). The Distributor receives from the Fund a distribution fee
                    accrued daily and payable monthly at the rate of 0.85% 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 pages 17 and 22).
- ------------------------------------------------------------------------------------------------------------------------------------
Redemption--        Shares are redeemable by the shareholder at net asset value. An account may be involuntarily redeemed if the
Contingent          total value of the account is less than $100 or, if the account was opened through EasyInvest, if after twelve
Deferred            months the shareholder has invested less than $1,000 in the account. Although no commission or sales load is
Sales               imposed upon the purchase of shares, a contingent deferred sales charge (scaled down from 5% to 1%) is imposed
Charge              on any redemption of shares if after such redemption the aggregate current value of an account with the Fund
                    falls below 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 pages 22-24).
- ------------------------------------------------------------------------------------------------------------------------------------
Special             The net asset value of the Fund's shares will fluctuate with changes in the market value of its portfolio
Risk                securities. The Fund is a non-diversified investment company and, as such, is not subject to the diversification
Considerations      requirements of the Investment Company Act of 1940, as amended (see page 8). In addition, it should be
                    recognized that the foreign securities and markets in which the Fund will invest pose different and possibly
                    greater risks than those customarily associated with domestic securities and their markets. Moreover, investors
                    should consider other risks associated with a portfolio of international securities, including fluctuations in
                    foreign currency exchange rates (i.e., if a substantial portion of the Fund's assets are denominated in foreign
                    currencies which decrease in value with respect to the U.S. dollar, the value of the investor's shares and the
                    distributions made on those shares will, likewise, decrease in value), foreign securities exchange controls and
                    foreign tax rates, as well as investments in forward currency contracts, options and futures contracts (see
                    pages 8-15).
- ------------------------------------------------------------------------------------------------------------------------------------
</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  expenses and fees set forth  in the table are for  the
fiscal year ended October 31, 1996.
 
<TABLE>
<S>                                                                                      <C>
SHAREHOLDER TRANSACTION EXPENSES
- ---------------------------------------------------------------------------------------
Maximum Sales Charge Imposed on Purchases..............................................  None
Maximum Sales Charge Imposed on Reinvested Dividends...................................  None
Deferred Sales Charge
  (as a percentage of the lesser of original purchase price or redemption proceeds)....  5.0%
      A contingent deferred sales charge is imposed at the following declining rates:
</TABLE>
 
<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>
<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*...........................................................................      0.85%
Other Expenses........................................................................      0.36%
Total Fund Operating Expenses.........................................................      1.96%
<FN>
- ------------
*  A PORTION OF  THE 12B-1 FEE  EQUAL TO 0.20%  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>
 
<TABLE>
<CAPTION>
EXAMPLE                                                                   1 year       3 years      5 years     10 years
- ----------------------------------------------------------------------  -----------  -----------  -----------  -----------
<S>                                                                     <C>          <C>          <C>          <C>
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:..............................................................   $      70    $      92    $     126    $     229
You would pay the following expenses on the same investment,  assuming
 no redemption:.......................................................   $      20    $      62    $     106    $     229
</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  "Redemptions  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  per share  data  and  ratios 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 of the Fund.
 
   
<TABLE>
<CAPTION>
                                                                                                   FOR THE
                                                                                                    PERIOD
                                                                                                    MARCH
                                                                                                     30,
                                                                                                    1989*
                                                FOR THE YEAR ENDED OCTOBER 31                      THROUGH
                            ---------------------------------------------------------------------  OCTOBER
                               1996      1995      1994      1993      1992      1991      1990    31, 1989
                            ---------- --------  --------  --------  --------  --------  --------  --------
<S>                         <C>        <C>       <C>       <C>       <C>       <C>       <C>       <C>
PER SHARE OPERATING
 PERFORMANCE:
  Net asset value,
   beginning of period....       $9.08    $8.55     $9.39     $9.11     $9.11    $10.38     $9.55  $10.00
                            ---------- --------  --------  --------  --------  --------  --------  --------
  Net investment income...        0.60     0.55      0.55      0.59      0.62      0.82      0.95  0.49
  Net realized and
   unrealized gain
   (loss).................        0.48     0.48     (0.92)     0.27      0.01     (0.99)     0.78  (0.45)
                            ---------- --------  --------  --------  --------  --------  --------  --------
  Total from investment
   operations.............        1.08     1.03     (0.37)     0.86      0.63     (0.17)     1.73  0.04
                            ---------- --------  --------  --------  --------  --------  --------  --------
Less dividends and
 distributions from:
  Net investment income...       (0.83)    (0.50)    (0.22)    (0.58)    (0.63)    (0.86)    (0.90) (0.49)
  Net realized gain.......          --       --        --        --        --     (0.24)       --    --
  Paid-in-capital.........          --       --     (0.25)       --        --        --        --    --
                            ---------- --------  --------  --------  --------  --------  --------  --------
Total dividends and
 distributions............       (0.83)    (0.50)    (0.47)    (0.58)    (0.63)    (1.10)    (0.90) (0.49)
                            ---------- --------  --------  --------  --------  --------  --------  --------
Net asset value, end of
 period...................       $9.33    $9.08     $8.55     $9.39     $9.11     $9.11    $10.38  $9.55
                            ---------- --------  --------  --------  --------  --------  --------  --------
                            ---------- --------  --------  --------  --------  --------  --------  --------
TOTAL INVESTMENT
 RETURN+..................       12.60%    12.45%   (3.99)%     9.72%     7.13%   (1.75)%    19.22% 0.40    %(1)
RATIOS TO AVERAGE NET
 ASSETS:
  Expenses................        1.96%     1.93%     1.91%     1.87%     1.87%     1.76%     1.81% 1.90    %(2)
  Net investment income...        6.39%     6.21%     5.87%     6.39%     6.78%     8.45%     9.76% 9.10    %(2)
SUPPLEMENTAL DATA:
  Net assets, end of
   period, in thousands...    $114,022 $138,165  $179,563  $275,319  $324,185  $421,051  $462,709  $388,578
  Portfolio turnover
   rate...................         263%      254%      229%      229%      214%      245%      109%  113    %(1)
</TABLE>
    
 
- ---------------
 
 * COMMENCEMENT OF OPERATIONS.
 + DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE NET
   ASSET VALUE OF THE LAST BUSINESS DAY OF THE PERIOD.
(1) NOT ANNUALIZED.
(2) ANNUALIZED.
 
                                       4
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
    Dean   Witter  World  Wide  Income  Trust   (the  "Fund")  is  an  open-end,
non-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 Massachusetts on October 14, 1988.
 
    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 100 investment companies, 30 of which are listed on
the  New York Stock Exchange, with  combined total assets of approximately $87.9
billion as of November 30, 1996. The Investment Manager also manages  portfolios
of   pension  plans,   other  institutions  and   individuals  which  aggregated
approximately $3.1 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  or under  the
direction of 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 at an annual  rate
of  0.75% of the daily net assets of the Fund up to $250 million, scaled down at
various asset levels to 0.30% of the  daily net assets of the Fund exceeding  $1
billion.  For the  fiscal year  ended October 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 1.96% of the Fund's
average daily net assets.
 
INVESTMENT OBJECTIVES AND POLICIES
- --------------------------------------------------------------------------------
 
    The primary investment objective of the Fund  is to provide a high level  of
current income. As a secondary objective, the Fund will seek appreciation in the
value  of its assets. The Fund will attempt to achieve its investment objectives
by investing  primarily in  a  portfolio of  fixed-income securities  issued  by
foreign  and U.S. corporations  or issued or  guaranteed by foreign governments,
government agencies or government subdivisions, supranational organizations  (or
any   subdivision   thereof)  and   the  U.S.   Government,  its   agencies  and
instrumentalities. There can  be no  assurance that  the Fund  will achieve  its
objectives.  The investment objectives are fundamental policies of the Fund and,
as such, may  not be changed  without the  approval of the  shareholders of  the
Fund.
    The  Fund  may  invest  in  securities  issued  by  government  entities  or
corporations of  any single  nation  and which  are  denominated in  any  single
currency.  The Investment  Manager will,  however, actively  allocate the Fund's
investments   among    various   geographic    regions,   nations,    currencies
 
                                       5
<PAGE>
and  corporations  or  governmental  entities in  its  attempt  to  maximize the
dividends paid on the Fund's shares and, if possible, the appreciation of  their
value.  In  addition,  it  is  the  Fund's  policy  that,  during  normal market
conditions, its assets  will be comprised  of investments in  the securities  of
issuers located in at least three separate nations (which may include the United
States).  The  Investment Manager  will consider  such factors  as the  yield of
individual securities,  the anticipated  appreciation  of such  securities,  the
state  of the economies of the countries  in which the investments are made, the
levels of  inflation existing  in such  countries, the  liquidity and  financial
soundness of the markets in which such securities trade, the levels of inflation
existing   within  the  relevant   country  and  the   current  and  anticipated
relationships of such countries' currencies to the U.S. dollar. The currency  in
which  the Fund's securities will be  principally denominated will be a function
of these  factors  in  that, at  any  given  time, the  Investment  Manager  may
determine,  after review of these factors, that the fixed-income securities in a
given country  are  superior  to  the fixed-income  securities  in  a  different
country,  and,  accordingly,  increase  the  proportion  of  the  Fund's  assets
denominated in the currency of the country with the superior investment climate.
 
    It is anticipated that the securities held by the Fund in its portfolio will
be denominated,  principally, in  the following  currencies: the  United  States
dollar, Australian dollar, New Zealand dollar, German mark, Japanese yen, French
franc, British pound, Canadian dollar, Mexican peso, Swiss franc, Dutch guilder,
Belgian  franc,  Swedish  kronor,  Italian  lira,  Finnish  markka  and European
Currency Unit (a weighted  composite of the currencies  of member states of  the
European  Monetary System). Securities of issuers  within a given country may be
denominated in the currency of a different country.
 
    The U.S. Government  securities in which  the Fund may  invest include  U.S.
Treasury  bonds,  notes and  bills,  which are  direct  obligations of  the U.S.
Government as  well  as in  securities  issued  or guaranteed  by  agencies  and
instrumentalities  of  the  U.S.  Government. Some  of  the  securities  of such
agencies and instrumentalities are  backed by the full  faith and credit of  the
U.S.  (e.g., the Government National Mortgage Association), while others are not
backed by the full faith and credit of the U.S. but are backed by the credit  of
the  issuing agency or instrumentality (e.g., the Federal Home Loan Bank) or are
backed by an  existing line  of credit  with the  U.S. Treasury  from which  its
issuing  agency  or  instrumentality  may  borrow  (e.g.,  the  Federal National
Mortgage Association).
 
    The Fund  may invest  in  fixed-income securities  issued or  guaranteed  by
supranational  organizations.  Such  organizations  are  entities  designated or
supported by a government or government entity to promote economic  development,
and  include, among  others, the Asian  Development Bank, the  European Coal and
Steel Community,  the European  Economic  Community and  the World  Bank.  These
organizations  do not have taxing authority and are dependent upon their members
for payments  of interest  and principal.  Each supranational  entity's  lending
activities are limited to a percentage of its total capital (including "callable
capital"  contributed by members at the entity's call), reserves and net income.
Securities issued  by supranational  organizations may  be denominated  in  U.S.
dollars or in foreign currencies.
 
    In seeking to achieve its objectives, the Fund will normally invest at least
65%  of its assets in  fixed-income securities issued or  guaranteed by the U.S.
Government, its agencies and instrumentalities or fixed-income securities issued
by  U.S.  corporations,  foreign  governments,  foreign  corporations  or  other
entities  which have been rated within the four highest categories as determined
by Moody's Investors Service, Inc. ("Moody's") (Aaa, Aa, A or Baa) or Standard &
Poor's Corporation ("S&P") (AAA,  AA, A or  BBB), or which  are unrated by  such
rating  agencies  but  which are  deemed  to  be of  comparable  quality  by the
Investment Manager. The ratings  of fixed-income securities  by Moody's and  S&P
are a generally accepted barometer of credit risk. Fixed-income securities rated
Baa by Moody's have
 
                                       6
<PAGE>
certain speculative characteristics. A description of S&P and Moody's ratings is
contained in the Statement of Additional Information.
 
    The  types  of  fixed-income  securities invested  in  by  the  Fund include
straight debt obligations of  varying maturities, such  as bonds, notes,  bills,
debentures, equipment lease and trust certificates, conditional sales contracts,
commercial   paper,   commercial  bank   obligations,  obligations   of  savings
institutions, bankers' acceptances, Eurodollar certificates of deposit and fixed
and adjustable rate preferred stocks.
 
    The Fund may invest  without limitation in notes  and commercial paper,  the
principal  amount  of  which is  indexed  to certain  specific  foreign currency
exchange rates. Indexed notes and commercial paper typically provide that  their
principal  amount  is adjusted  upwards  or downwards  (but  not below  zero) at
maturity to reflect  fluctuations in  the exchange rate  between two  currencies
during  the period the obligation is outstanding,  depending on the terms of the
specific security. In selecting the two currencies, the Investment Manager  will
consider  the correlation  and relative yields  of various  currencies. The Fund
will  purchase  an  indexed  obligation  using  the  currency  in  which  it  is
denominated  and,  at maturity,  will  receive interest  and  principal payments
thereon in  that currency.  The amount  of principal  payable by  the issuer  at
maturity,  however, will  vary (i.e., increase  or decrease) in  response to the
change (if  any) in  the exchange  rates between  the two  specified  currencies
during  the period from the date the  instrument is issued to its maturity date.
The potential for  realizing gains as  a result of  changes in foreign  currency
exchange rates may enable the Fund to hedge the currency in which the obligation
is  denominated (or to  effect cross-hedges against  other currencies) against a
decline  in  the  U.S.  dollar  value  of  investments  denominated  in  foreign
currencies,  while providing an attractive money market rate of return. The Fund
will purchase such indexed obligations to generate current income or for hedging
purposes and will not speculate in such obligations.
 
    Under normal conditions, a percentage  of the short-term investments in  the
Fund's portfolio may be money market securities. Money market securities include
short-term  obligations issued or  guaranteed by the  U.S. Government or foreign
governments  or   issued   by   such  governments'   respective   agencies   and
instrumentalities,  bank  money  market  instruments  including  certificates of
deposit, bankers' acceptances, time deposits and deposit notes and certain other
short-term obligations such as short-term commercial paper. With respect to bank
money instruments, the obligations may be  issued by U.S. or foreign  depository
institutions,  foreign branches or subsidiaries  of U.S. depository institutions
("Eurodollar" obligations), U.S. branches or subsidiaries of foreign  depository
institutions ("Yankeedollar" obligations) or foreign branches or subsidiaries of
foreign  depository  institutions. Eurodollar  and Yankeedollar  obligations and
obligations of branches or subsidiaries  of foreign depository institutions  may
be  general obligations  of the  parent bank  or may  be limited  to the issuing
branch or subsidiary by the terms  of the specific obligations or by  government
regulation.
 
    In  addition,  the  Fund may  invest  in fixed-income  securities  which are
convertible into common  stock, such as  convertible debentures and  convertible
preferred  stock,  and  fixed-income  securities to  which  are  attached equity
features such as  shares of common  stock, warrants for  the purchase of  common
stock,  participations based on revenues, sales  or profits and other conversion
and/or exchange rights.
 
    The Fund may also  invest in securities  of foreign issuers  in the form  of
American  Depository  Receipts (ADRs),  European  Depository Receipts  (EDRs) or
other similar securities convertible into  securities of foreign issuers.  These
securities  may  not necessarily  be  denominated in  the  same currency  as the
securities into which they may be converted. ADRs are receipts typically  issued
by  a United States bank or trust company evidencing ownership of the underlying
securities. EDRs are European receipts evidencing a similar
arrange-
 
                                       7
<PAGE>
ment. 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.
 
    There may be periods during which, in the opinion of the Investment Manager,
market conditions warrant  reduction of  some or  all of  the Fund's  securities
holdings.  During  such  periods, the  Fund  may adopt  a  temporary "defensive"
posture in which greater than  35% of its assets are  invested in cash or  money
market  instruments. Under such  circumstances, the money  market instruments in
which the  Fund may  invest are  securities  issued or  guaranteed by  the  U.S.
Government;   U.S.  bank   obligations;  Eurodollar   certificates  of  deposit;
obligations of  American savings  institutions;  fully insured  certificates  of
deposit;  and  commercial paper  of U.S.  issuers rated  within the  two highest
grades by Moody's or  S&P or, if not  rated, are issued by  a company having  an
outstanding debt issue rated at least AA by S&P or Aa by Moody's.
 
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's yield  will
also vary based on the yield of the Fund's portfolio securities.
 
    All  fixed-income securities are  subject to two types  of risks: the credit
risk and the interest rate risk. The  credit risk relates to the ability of  the
issuer  to meet  interest or principal  payments or  both as they  come due. The
interest rate risk  refers to the  fluctuations in  the net asset  value of  any
portfolio  of fixed-income  securities resulting  from the  inverse relationship
between price and yield  of fixed-income securities; that  is, when the  general
level of interest rates rises, the prices of outstanding fixed-income securities
decline, and when interest rates fall, prices rise.
 
    The  Fund may also purchase fixed-income securities which are issued by U.S.
issuers and which are denominated in U.S. dollars but which return principal  to
investors in amounts which are tied to the exchange rate between the U.S. dollar
and  a foreign currency. The payment of interest on such securities is generally
made at a fixed U.S. dollar rate.
 
    NON-DIVERSIFIED STATUS.   The Fund is  a non-diversified investment  company
and,  as  such,  is  not  subject to  the  diversification  requirements  of the
Investment Company Act  of 1940, as  amended (the "Act").  As a  non-diversified
investment  company, the Fund may invest a  greater portion of its assets in the
securities of a single issuer and thus  is subject to greater exposure to  risks
such  as  a decline  in  the credit  rating of  that  issuer. However,  the Fund
anticipates that it  will qualify as  a regulated investment  company under  the
federal  income tax laws and, if so qualified, will be subject to the applicable
diversification requirements  of  the Internal  Revenue  Code, as  amended  (the
"Code").  As a regulated investment company under the Code, the Fund may not, as
of the end of  any of its fiscal  quarters, have invested more  than 25% of  its
total  assets  in  the  securities  of  any  one  issuer  (including  a  foreign
government), or as to 50% of its total assets, have invested more than 5% of its
total assets in the securities of a single issuer.
 
    FOREIGN SECURITIES.    Investors  should carefully  consider  the  risks  of
investing  in  securities  of  foreign  issuers  and  securities  denominated in
non-U.S. currencies. Fluctuations in the relative rates of exchange between  the
currencies  of different nations may affect the value of the Fund's investments.
Changes in foreign  currency exchange  rates relative  to the  U.S. dollar  will
affect  the U.S. dollar value of the  Fund's assets denominated in that currency
and thereby impact upon the Fund's yield on such assets and the net asset  value
of  a share of the Fund  as well as the amount  of the Fund's distributions. For
example, if  a substantial  portion  of the  Fund's  assets are  denominated  in
Japanese yen and the relative exchange rate of the yen falls with respect to the
U.S.  dollar (i.e., a  yen is worth a  smaller fraction of a  dollar than it had
been)  then  the  Fund  will  be  receiving  a  lesser  amount  of  interest  on
 
                                       8
<PAGE>
its  fixed-income  securities  denominated  in  yen  (when  converted  into U.S.
dollars) and when the Fund's assets  are valued for purposes of determining  the
net  asset value per share of the Fund,  the net assets of the Fund reflected by
the yen-denominated securities will have declined  in U.S. dollar value and  the
net  asset  value of  the Fund  (always stated  in U.S.  dollars) may  have also
declined.
 
    Foreign currency  exchange rates  are  determined by  forces of  supply  and
demand  on the foreign exchange markets. These forces are themselves affected by
the  international  balance  of  payments  and  other  economic  and   financial
conditions,  government intervention,  speculation and  other factors. Moreover,
foreign currency exchange rates may be affected by the regulatory control of the
exchanges on which the  currencies trade. The  foreign currency transactions  of
the  Fund will  be conducted  on a  spot basis  or through  forward contracts or
futures contracts (see below).  The Fund may incur  certain costs in  connection
with these currency transactions.
 
    Investments  in  foreign securities  will  also occasion  risks  relating to
political  and  economic  developments  abroad,  including  the  possibility  of
expropriations  or confiscatory taxation, limitations on  the use or transfer of
Fund  assets  and  any  effects   of  foreign  social,  economic  or   political
instability. Foreign companies are not subject to the regulatory requirements of
U.S.  companies and, as  such, there may be  less publicly available information
about such companies. Moreover, foreign  companies are not generally subject  to
uniform accounting, auditing and financial standards and requirements comparable
to those applicable to U.S. companies.
 
    Securities  of foreign issuers may be less liquid than comparable securities
of U.S.  issuers  and,  as such,  their  price  changes may  be  more  volatile.
Furthermore,  foreign exchanges and broker-dealers are generally subject to less
government  and   exchange  scrutiny   and   regulation  than   their   American
counterparts.  Brokerage commissions,  dealer concessions  and other transaction
costs may be higher on foreign markets than in the U.S. In addition, differences
in clearance and settlement procedures on foreign markets may occasion delays in
settlements of Fund  trades effected in  such markets. Inability  to dispose  of
portfolio securities due to settlement delays could result in losses to the Fund
due  to subsequent declines in value of such securities and the inability of the
Fund to make intended security purchases due to settlement problems could result
in a failure of the Fund to make potentially advantageous investments.
                                  ------------
 
    To hedge  against adverse  price movements  in the  securities held  in  its
portfolio  and the currencies in  which they are denominated  (as well as in the
securities it might wish to purchase and their denominated currencies) the  Fund
may  engage in  transactions in forward  foreign currency  contracts, options on
securities  and  currencies,  and  futures  contracts  and  options  on  futures
contracts on securities, currencies and indexes. The Fund may also write options
on  securities and currencies to assist it in meeting its objective of providing
a high level of current income.  A discussion of these transactions follows  and
is   supplemented  by  further   disclosure  in  the   Statement  of  Additional
Information.
 
    FORWARD FOREIGN  CURRENCY EXCHANGE  CONTRACTS.  A forward  foreign  currency
exchange  contract ("forward  contract") involves  an obligation  to purchase or
sell a currency at a future date, which may be any fixed number of days from the
date of the contract agreed upon by the  parties, at a price set at the time  of
the  contract. The  Fund may  enter into  forward contracts  as a  hedge against
fluctuations in future foreign exchange rates.
 
    The Fund will enter into forward contracts under various circumstances. When
the Fund  enters  into  a contract  for  the  purchase or  sale  of  a  security
denominated  in a foreign currency, it may, for example, desire to "lock in" the
price of the security in U.S. dollars  or some other foreign currency which  the
Fund  is  temporarily  holding in  its  portfolio.  By entering  into  a forward
contract  for  the  purchase  or  sale,  for  a  fixed  amount  of  dollars   or
 
                                       9
<PAGE>
other  currency, of  the amount of  foreign currency involved  in the underlying
security transactions,  the  Fund will  be  able  to protect  itself  against  a
possible  loss resulting from an adverse  change in the relationship between the
U.S. dollar or other currency which is being used for the security purchase  and
the  foreign currency  in which  the security  is denominated  during the period
between the date  on which the  security is purchased  or sold and  the date  on
which payment is made or received.
 
    At  other times, when,  for example, the  Fund's Investment Manager believes
that the  currency of  a particular  foreign country  may suffer  a  substantial
decline  against the U.S.  dollar or some  other foreign currency,  it may enter
into a  forward  contract to  sell,  for a  fixed  amount of  dollars  or  other
currency,  the amount of foreign currency approximating the value of some or all
of the Fund's portfolio securities (or  securities which the Fund has  purchased
for  its  portfolio)  denominated  in  such  foreign  currency.  Under identical
circumstances, the Fund may enter into a  forward contract to sell, for a  fixed
amount  of U.S. dollars or  other currency, an amount  of foreign currency other
than the  currency  in  which  the  securities  to  be  hedged  are  denominated
approximating the value of some or all of the portfolio securities to be hedged.
The   Investment   Manager  will   select   this  method   of   hedging,  called
"cross-hedging," when  it determines  that  the foreign  currency in  which  the
portfolio  securities are denominated have insufficient liquidity or are trading
at a discount as compared with some  other foreign currency with which it  tends
to move in tandem.
 
    In  addition,  when  the Fund's  Investment  Manager  anticipates purchasing
securities at  some time  in  the future,  and wishes  to  lock in  the  current
exchange  rate of the currency in which those securities are denominated against
the U.S. dollar  or some other  foreign currency,  it may enter  into a  forward
contract  to purchase an amount of currency equal to some or all of the value of
the anticipated purchase, for a fixed amount of U.S. dollars or other  currency.
The  Fund may,  however, close out  the forward contract  without purchasing the
security which was the subject of the "anticipatory" hedge.
 
    Lastly, the Fund is permitted to  enter into forward contracts with  respect
to  currencies in which certain of  its portfolio securities are denominated and
on which options have been written (see "Options and Futures Transactions").
 
    In all  of the  above circumstances,  if the  currency in  which the  Fund's
portfolio securities (or anticipated portfolio securities) are denominated rises
in  value with respect to the currency  which is being purchased (or sold), then
the Fund will have realized fewer gains  than had the Fund not entered into  the
forward  contracts.  Moreover,  the  precise matching  of  the  forward contract
amounts and the value of the securities involved will not generally be possible,
since the future value of such securities in foreign currencies will change as a
consequence of market  movements in the  value of those  securities between  the
date  the forward contract is entered into and  the date it matures. The Fund is
not required  to  enter  into  such transactions  with  regard  to  its  foreign
currency-denominated  securities and will not do so unless deemed appropriate by
the Investment Manager.
 
    The Fund generally will  not enter into  a forward contract  with a term  of
greater  than one year, although it may enter into forward contracts for periods
of up to five  years. To the  extent that the Fund  enters into forward  foreign
currency contracts to hedge against a decline in the value of portfolio holdings
denominated   in  a   particular  foreign   currency  resulting   from  currency
fluctuations, there is a risk that the  Fund may nevertheless realize a gain  or
loss as a result of currency fluctuations after such portfolio holdings are sold
if  the Fund is  unable to enter  into an "offsetting"  forward foreign currency
contract with the same party  or another party. The Fund  may be limited in  its
ability  to enter into  hedging transactions involving  forward contracts by the
Code requirements relating  to qualification as  a regulated investment  company
(see "Dividends, Distributions and Taxes").
 
                                       10
<PAGE>
OPTIONS AND FUTURES TRANSACTIONS
 
    The Fund may purchase and sell (write) call and put options on U.S. Treasury
notes,  bonds and bills, on various  foreign currencies and on equity securities
which are  listed on  several  U.S. and  foreign  securities exchanges  and  are
written  in over-the-counter  transactions ("OTC  options"). Listed  options are
issued or  guaranteed by  the exchange  on which  they trade  or by  a  clearing
corporation  such as  the Options Clearing  Corporation ("OCC").  Ownership of a
listed call option gives the Fund the right to buy from the OCC (in the U.S.) or
other clearing  corporation or  exchange, the  underlying security  or  currency
covered  by the option at  the stated exercise price (the  price per unit of the
underlying security  or currency)  by filing  an exercise  notice prior  to  the
expiration  date of the option. Ownership of  a listed put option would give the
Fund the right to sell  the underlying security or currency  to the OCC (in  the
U.S.)  or other clearing  corporation or exchange at  the stated exercise price.
OTC options  are  purchased from  or  sold  (written) to  dealers  or  financial
institutions  which  have entered  into direct  agreements  with the  Fund. With
respect to 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.
 
    COVERED  CALL WRITING.  The Fund is  permitted to write covered call options
on portfolio securities which are denominated in either U.S. dollars or  foreign
currencies,  without  limit, in  order  to aid  it  in achieving  its investment
objectives and to close out  long call option positions. As  a writer of a  call
option,  the Fund has the obligation, upon  notice of exercise of the option, to
deliver the security or amount of currency underlying the option (certain listed
and OTC call options written  by the Fund will  be exercisable by the  purchaser
only on a specific date).
 
    COVERED PUT WRITING.  As a writer of covered put options, the Fund incurs an
obligation  to buy  the security  (or currency)  underlying the  option from the
purchaser of the  put at  the option's  exercise price  at any  time during  the
option  period, at the purchaser's election  (certain listed and OTC put options
written by the  Fund will be  exercisable by  the purchaser only  on a  specific
date).  The Fund will write  put options for three  purposes: (1) to receive the
premiums paid by purchasers; (2) when the Investment Manager wishes to  purchase
the  security underlying the  option (or a security  denominated in the currency
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;  and (3) to  close out  a long put  option position.  The
aggregate value of the obligations underlying the puts determined as of the date
the options are sold will not exceed 50% of the Fund's net assets.
 
    PURCHASING  CALL AND PUT OPTIONS.  The Fund may purchase listed and OTC call
and put options in amounts equalling up to 5% of its total assets. The Fund  may
purchase call options to close out a written call position or to protect against
an increase in the price of a security it anticipates purchasing or, in the case
of call options on a foreign currency, to hedge against an adverse exchange rate
change  of  the currency  in  which the  security  it anticipates  purchasing is
denominated vis-a-vis the currency in  which the exercise price is  denominated.
The  Fund may purchase put options on securities which it holds in its portfolio
only to  protect  itself  against  a  decline in  the  value  of  the  security.
Similarly,  the Fund may purchase put  options on currencies in which securities
which it holds are denominated only to protect itself against a decline in value
of such  currency  vis-a-vis  the  currency  in  which  the  exercise  price  is
denominated.  There are no other  limits on the Fund's  ability to purchase call
and put options.
 
    FUTURES CONTRACTS.  The  Fund may purchase and  sell futures contracts  that
are  currently  traded, or  may in  the future  be traded,  on U.S.  and foreign
commodity exchanges on such underlying fixed-income securities as U.S.  Treasury
bonds,  notes,  and bills  and/or any  foreign government  fixed-income security
("interest rate" futures), on various
 
                                       11
<PAGE>
currencies  ("currency"  futures)  and  on  such  indexes  of  U.S.  or  foreign
fixed-income  securities as may  exist or come  into being, such  as the Moody's
Investment-Grade Corporate Bond Index ("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  for the
purpose of  hedging  the value  of  its fixed-income  portfolio  securities  (or
anticipated  portfolio securities) against changes in prevailing interest rates.
The Fund  will purchase  or sell  index  futures contracts  for the  purpose  of
hedging its fixed-income portfolio (or anticipated portfolio) against changes in
their  prices. The Fund will purchase or  sell currency futures on currencies in
which  its  portfolio  securities  (or  anticipated  portfolio  securities)  are
denominated  for the purposes of hedging against anticipated changes in currency
exchange rates. In  addition to  the above,  interest rate,  index and  currency
futures  will be bought or sold  in order to close out  a short or long position
maintained by the Fund in a corresponding futures contract.
 
    OPTIONS ON FUTURES CONTRACTS.  The Fund may purchase and write call and  put
options  on futures  contracts which  are traded on  an exchange  and enter into
closing transactions  with respect  to  such options  to terminate  an  existing
position.  An option  on a  futures contract gives  the purchaser  the right (in
return for the premium paid) to assume a position in a futures contract (a  long
position if the option is a call and a short position if the option is a put) at
a specified exercise price at any time during the term of the option.
 
    The  Fund will purchase and write options on futures contracts for identical
purposes to  those  set forth  above  for the  purchase  of a  futures  contract
(purchase  of a call option or  sale of a put option)  and the sale of a futures
contract (purchase of a put option or sale of a call option), or to close out  a
long or short position in futures contracts.
 
    RISKS  OF  OPTIONS AND  FUTURES  TRANSACTIONS. The  Fund  may close  out its
position as writer of an option, or as a buyer or seller of a futures  contract,
only  if a liquid  secondary market exists  for options or  futures contracts of
that series. There is no assurance  that such a market will exist,  particularly
in the case of OTC options, as such options will generally only be closed out by
entering into a closing purchase transaction with the purchasing dealer.
 
    Exchanges  may limit the amount by which the price of many futures contracts
may move on  any day. If  the price moves  equal the daily  limit on  successive
days,  then it may  prove impossible to  liquidate a futures  position until the
daily limit moves have ceased.
 
    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 instead,
causing bond prices to rise, the Fund would lose money on the sale.
 
    Another risk  which may  arise  in employing  futures contracts  to  protect
against  the  price volatility  of portfolio  securities is  that the  prices of
securities, currencies and indexes subject to futures contracts (and thereby the
futures contract prices) may correlate imperfectly with the behavior of the U.S.
dollar cash  prices of  the Fund's  portfolio securities  and their  denominated
currencies.  Another such risk is that prices of interest rate futures contracts
may not move  in tandem with  the changes in  prevailing interest rates  against
which the Fund seeks a
 
                                       12
<PAGE>
hedge.  A correlation may also be distorted  by the fact that the futures market
is dominated by short-term traders seeking to profit from the difference between
a contract or security  price objective and their  cost of borrowed funds.  Such
distortions  are generally minor  and would diminish  as the contract approached
maturity.
 
    The Fund,  by entering  into  transactions in  foreign futures  and  options
markets,  will  also incur  risks  similar to  those  discussed above  under the
section entitled "Foreign Securities."
 
OTHER INVESTMENT POLICIES
 
    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.
 
    CONVERTIBLE SECURITIES.  A convertible security is a bond, debenture,  note,
preferred  stock or other security that may be converted into or exchanged for a
prescribed amount of common  stock of the  same or a  different issuer within  a
particular  period  of  time  at  a  specified  price  or  formula.  Convertible
securities rank senior  to common  stocks in a  corporation's capital  structure
and,  therefore, entail less risk than the corporation's common stock. The value
of a convertible security is a function of its "investment value" (its value  as
if  it did  not have  a conversion privilege),  and its  "conversion value" (the
security's worth if  it were  to be exchanged  for the  underlying security,  at
market  value,  pursuant to  its  conversion privilege).  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,  the
convertible  security 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.
 
    REVERSE  REPURCHASE AGREEMENTS.   The Fund  may also  use reverse repurchase
agreements as part  of its  investment strategy.  Reverse repurchase  agreements
involve  sales by the Fund of portfolio assets concurrently with an agreement by
the Fund to repurchase the same assets at a later date at a fixed price. Reverse
repurchase agreements involve the risk that  the market value of the  securities
the  Fund is obligated to  repurchase under the agreement  may decline below the
repurchase price.  In  the  event  the  buyer  of  securities  under  a  reverse
repurchase  agreement files for bankruptcy or  becomes insolvent, the Fund's use
of the proceeds of  the agreement may be  restricted pending a determination  by
the  other party,  or its  trustee or  receiver, whether  to enforce  the Fund's
obligation to  repurchase  the  securities. Reverse  repurchase  agreements  are
speculative  techniques involving leverage, and are considered borrowings by the
Fund.
 
                                       13
<PAGE>
    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.
 
    WHEN-ISSUED  AND DELAYED DELIVERY SECURITIES  AND FORWARD COMMITMENTS.  From
time to  time,  in  the ordinary  course  of  business, the  Fund  may  purchase
securities  on a when-issued or  delayed delivery basis or  may purchase or sell
securities on a forward commitment basis. When such transactions are negotiated,
the price is fixed at the time  of the commitment, but delivery and payment  can
take place a month or more after the date of the commitment. There is no overall
limit  on the  percentage of  the Fund's  assets which  may be  committed to the
purchase of securities on a when-issued, delayed delivery or forward  commitment
basis.  An increase  in the  percentage of  the Fund's  assets committed  to the
purchase of securities on a when-issued, delayed delivery or forward  commitment
basis may increase the volatility of the Fund's net asset value.
 
    WHEN,  AS AND IF ISSUED  SECURITIES.  The Fund  may purchase securities on a
"when, as and if issued" basis under which the issuance of the security  depends
upon  the  occurrence of  a  subsequent event,  such  as approval  of  a merger,
corporate  reorganization,  leveraged  buyout  or  debt  restructuring.  If  the
anticipated  event does not  occur and the  securities are not  issued, the Fund
will have  lost an  investment opportunity.  There is  no overall  limit on  the
percentage  of  the Fund's  assets which  may  be committed  to the  purchase of
securities on a "when, as and if issued" basis. An increase in the percentage of
the Fund's assets committed to the purchase of securities on a "when, as and  if
issued" basis may increase the volatility of its net asset value.
 
    PRIVATE  PLACEMENTS.  The Fund  may invest up to 10%  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 of the Securities Act, and determined to be liquid
pursuant to the procedures discussed in the following paragraph, are not subject
to the foregoing  restriction.) These  securities are generally  referred to  as
private  placements or restricted securities. Limitations  on the resale of such
securities may have an  adverse effect on their  marketability, and may  prevent
the Fund from disposing of them promptly at reasonable prices. The Fund may have
to  bear the expense of  registering such securities for  resale and the risk of
substantial delays in effecting such registration.
 
    The Securities  and Exchange  Commission  has adopted  Rule 144A  under  the
Securities  Act,  which  permits  the  Fund  to  sell  restricted  securities to
qualified institutional  buyers  without  limitation.  The  Investment  Manager,
pursuant  to  procedures  adopted by  the  Trustees  of the  Fund,  will  make a
determination as to the liquidity of  each restricted security purchased by  the
Fund. If a restricted
 
                                       14
<PAGE>
security is determined to be "liquid," such security will not be included within
the  category "illiquid securities,"  which is limited  by the Fund's investment
restrictions to  10%  of  the  Fund's  total  assets.  Investing  in  Rule  144A
securities  could have the effect of increasing the level of Fund illiquidity to
the extent the  Fund, at  a particular  time, may  be unable  to find  qualified
institutional buyers interested in purchasing such securities.
 
    LENDING  OF  PORTFOLIO SECURITIES.    Consistent with  applicable regulatory
requirements, the Fund may lend its portfolio securities to brokers, dealers and
other financial institutions, provided that such loans are callable at any  time
by  the Fund (subject to certain notice provisions described in the Statement of
Additional  Information),  and  are  at  all  times  secured  by  cash  or  cash
equivalents, which are maintained in a segregated account pursuant to applicable
regulations  and that are at least equal  to the market value, determined daily,
of the loaned securities. 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.
 
    Except as  specifically  noted,  all  investment  objectives,  policies  and
practices discussed above are not fundamental policies of the Fund and, as such,
may be changed without shareholder approval.
 
    For  additional risk disclosure, please refer  to the discussion of specific
investments under  the  "Investment  Objectives and  Policies"  section  of  the
Prospectus  and the "Investment Practices and Policies" section of the Statement
of Additional Information.
 
PORTFOLIO MANAGEMENT
 
    The Fund's portfolio is  actively managed by its  Investment Manager with  a
view to achieving the Fund's investment objectives.
 
    The  Fund is managed within InterCapital's Taxable Fixed-Income Group, which
manages twenty-five funds and fund portfolios, with approximately $13.2  billion
in  assets at November 30,  1996. Vinh Q. Tran,  Vice President of InterCapital,
and Peter J. Seeley, a Senior Fixed-Income Portfolio Manager with  InterCapital,
each  a member  of InterCapital's  Taxable Fixed-Income  Group, are  the primary
portfolio managers of  the Fund. Messrs.  Tran and Seeley  have been the  Fund's
primary portfolio managers since its inception and December, 1994, respectively.
Mr. Tran has been a portfolio manager with InterCapital for over five years. Mr.
Seeley has been a portfolio manager with InterCapital since July, 1994, prior to
which  time he was  a portfolio manager with  Nikko Capital Management (October,
1992-June, 1994) and prior thereto  with Schroders Incorporated. 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.
 
    Personnel  of the Investment Manager have  substantial experience in the use
of the  investment techniques  described above  under the  heading "Options  and
Futures  Transactions,"  which techniques  require  skills different  from those
needed to select the portfolio securities underlying various options and futures
contracts.
 
    Securities purchased by  the Fund are  generally sold by  dealers acting  as
principal  for their  own accounts. Orders  for transactions  in other portfolio
securities and commodities are placed for the Fund with a number of brokers  and
dealers,  including DWR.  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
 
                                       15
<PAGE>
brokerage commissions on transactions conducted through DWR.
 
    The  Fund may sell portfolio securities without regard to the length of time
that they  have  been  held,  in  order to  take  advantage  of  new  investment
opportunities  or yield differentials,  or because the  Fund desires to preserve
gains or limit losses due to changing economic conditions, interest rate trends,
or the financial condition of the issuer. It is not anticipated that the  Fund's
portfolio  turnover rate will exceed  300% in any one  year. The Fund will incur
underwriting discount  costs (on  underwritten securities)  and brokerage  costs
commensurate  with its portfolio turnover rate.  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 transactions.
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    The  investment restrictions listed  below are among  the restrictions which
have been  adopted  by  the Fund  as  fundamental  policies. Under  the  Act,  a
fundamental  policy may  not be changed  without the  vote of a  majority of the
outstanding voting securities of the Fund,  as defined in the Act. 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 25%  or more  of the value  of its  total assets  in securities of
issuers in any one industry.
 
   2. 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 issued
or   guaranteed   by   the   United   States   Government,   its   agencies   or
instrumentalities.
 
   3. Purchase or sell commodities or commodities contracts except that the Fund
may  purchase or write interest rate, currency  and stock and bond index futures
contracts and related options thereon.
 
   4. Pledge its assets  or assign or otherwise  encumber them except to  secure
permitted   borrowings.  (For  the  purpose   of  this  restriction,  collateral
arrangements with respect to the writing of options and collateral  arrangements
with  respect to initial  or variation margin  for futures are  not deemed to be
pledges of assets.)
 
   5. Purchase securities on margin (but the Fund may obtain short-term loans as
are necessary for the clearance of transactions). The deposit or payment by  the
Fund  of initial  or variation  margin in  connection with  futures contracts or
related options thereon is not considered the purchase of a security on margin.
 
   6. Invest  more  than  10%  of its  total  assets  in  "illiquid  securities"
(securities   for  which  market  quotations  are  not  readily  available)  and
repurchase  agreements  which  have  a  maturity  of  longer  than  seven  days.
Generally,  OTC options and the  assets used as "cover"  for written OTC options
are illiquid securities. However, the Fund is permitted to treat the  securities
it  uses  as cover  for  written OTC  options as  liquid  provided it  follows a
procedure whereby it will sell OTC  options only to qualified dealers who  agree
that  the Fund may repurchase  such options at a  maximum price to be calculated
pursuant to  a predetermined  formula set  forth in  the option  agreement.  The
formula  may  vary from  agreement to  agreement,  but is  generally based  on a
multiple of the premium  received by the  Fund for writing  the option plus  the
amount,  if any, of the options intrinsic  value. An OTC option is considered an
illiquid asset only to  the extent that the  maximum repurchase price under  the
formula exceeds the intrinsic value of the option.
 
                                       16
<PAGE>
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  which  have entered  into  selected dealer  agreements  with the
Distributor ("Selected Broker-Dealers"). The  principal executive office of  the
Distributor is located at Two World Trade Center, New York, New York 10048.
 
    The minimum initial purchase is $1,000. Subsequent purchases of $100 or more
may  be made by sending a check, payable to Dean Witter World Wide Income Trust,
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, 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 offer  (see
"Determination of Net Asset Value" below).
 
    Shares  of  the Fund  are sold  through  the Distributor  on a  normal three
business day settlement basis; that is, payment is due on the third business day
(settlement date) after the order is placed with the Distributor. Since DWR  and
other  Selected Broker-Dealers forward investors' funds on settlement date, they
will benefit  from the  temporary use  of the  funds if  payment is  made  prior
thereto.  As noted above, orders placed directly with the Transfer Agent must be
accompanied by payment. Investors will  be entitled to receive income  dividends
and  capital gains  distributions if  their order  is received  by the  close of
business  on  the  day  prior  to  the  record  date  for  such  dividends   and
distributions.  While  no  sales  charge  is  imposed  at  the  time  shares are
purchased, a contingent deferred sales charge, which is paid to the Distributor,
may be imposed at  the time of redemption  (see "Redemptions and  Repurchases").
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.
 
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 0.85% 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
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 0.20% 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
 
                                       17
<PAGE>
personal service and/or the maintenance of shareholder accounts.
 
    Amounts paid under the Plan are paid to the Distributor to compensate it for
the services provided and  the expenses borne by  the Distributor and others  in
the  distribution of the Fund's shares, including the payment of commissions for
sales of the  Fund's shares and  incentive compensation to  and expenses of  DWR
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 distribution expenses.
 
    For the fiscal year ended October 31, 1996, the Fund accrued payments  under
the  Plan amounting to $1,058,190, which amount  is equal to 0.85% 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 "Redemptions  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 $8,308,200 at October 31, 1996, which was equal
to 7.29% 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 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), on  each  day that  the New  York Stock
Exchange is open 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  is valued at its  latest sale price on that
exchange prior to the time when assets  are valued (if there were no sales  that
day,  the security is valued at the  latest bid price; in cases where securities
are traded on more than one exchange, the securities are valued on the  exchange
designated as the primary market
pursu-
 
                                       18
<PAGE>
ant  to  procedures  adopted  by  the Trustees);  and  (2)  all  other portfolio
securities for which  over-the-counter market quotations  are readily  available
are  valued at the  latest available bid  price prior to  the time of valuation.
When market quotations are not readily available, including circumstances  under
which  it is determined by  the Investment Manager that  sale and bid prices are
not reflective of a security's market value, portfolio securities are valued  at
their fair value as determined in good faith under procedures established by and
under  the general supervision  of the Fund's  Trustees. For valuation purposes,
quotations of foreign  portfolio securities,  other assets  and liabilities  and
forward  contracts stated  in foreign currency  are translated  into U.S. dollar
equivalents at the prevailing market  rates prior to the  close of the New  York
Stock Exchange.
    Short-term  debt securities with remaining maturities  of sixty days or less
at the  time of  purchase are  valued  at amortized  cost, unless  the  Trustees
determine  such does  not reflect  the securities'  market value,  in which case
these securities  will  be valued  at  their fair  value  as determined  by  the
Trustees.
    Certain  of  the Fund's  portfolio securities  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.
 
    Generally, trading in foreign securities, as well as corporate bonds, United
States government  securities and  money  market instruments,  is  substantially
completed  each day at  various times prior to  the close of  the New York Stock
Exchange. The values of such securities used in computing the net asset value of
the Fund's shares  are determined as  of such times.  Foreign currency  exchange
rates  are also generally  determined prior to  the close of  the New York Stock
Exchange. Occasionally, events which  affect the values  of such securities  and
such exchange rates may occur between the times at which they are determined and
the  close of the New York Stock Exchange and will therefore not be reflected in
the computation of the  Fund's net asset value.  If events materially  affecting
the  value of  such securities occur  during such period,  then these securities
will be valued at their fair value as determined in good faith under  procedures
established by and under the supervision of the Trustees.
 
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").
 
    EASYINVESTSM.   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,
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").
 
    INVESTMENT OF DIVIDENDS AND 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 per
share next
deter-
 
                                       19
<PAGE>
mined  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.")
 
    SYSTEMATIC  WITHDRAWAL PLAN.  A  systematic withdrawal plan (the "Withdrawal
Plan") is available  for shareholders  who own or  purchase shares  of the  Fund
having  a minimum value of $10,000 based  upon the then current net asset value.
The Withdrawal Plan provides  for monthly or  quarterly (March, June,  September
and  December) checks in any  dollar amount, not less than  $25, or in any whole
percentage of  the  account balance,  on  an annualized  basis.  Any  applicable
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 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 Bond Fund, Dean Witter Short-Term U.S. Treasury
Trust, Dean Witter  Limited Term  Municipal Trust, Dean  Witter Balanced  Growth
Fund,  Dean  Witter Balanced  Income 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  referred to  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 business 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
 
                                       20
<PAGE>
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 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 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. 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 writing or  telephoning the Transfer Agent) must  complete
and  forward to  the Transfer  Agent an  Exchange Privilege  Authorization Form,
copies of which may be obtained from the
 
                                       21
<PAGE>
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 fradulent 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.
 
    Shareholders  should  contact  their  DWR  or  other  Selected Broker-Dealer
account executive  or  the Transfer  Agent  for further  information  about  the
Exchange Privilege.
 
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 may
be reduced by  the amount of  any applicable contingent  deferred sales  charges
(see  below). If  shares are  held in  a shareholder's  account without  a share
certificate, a written request  for redemption to the  Fund's Transfer Agent  at
P.O. Box 983, Jersey City, NJ 07303 is required. If certificates are held by the
shareholder,  the shares may be redeemed by surrendering the certificates with a
written request for redemption along with any additional information required by
the Transfer Agent.
 
    CONTINGENT DEFERRED SALES  CHARGE.  Shares  of the Fund  which are held  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
             PURCHASE                   AS A PERCENTAGE OF
           PAYMENT MADE                  AMOUNT REDEEMED
- -----------------------------------  ------------------------
<S>                                  <C>
First..............................              5.0%
Second.............................              4.0%
Third..............................              3.0%
Fourth.............................              2.0%
Fifth..............................              2.0%
Sixth..............................              1.0%
Seventh and thereafter.............            None
</TABLE>
 
    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 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
 
                                       22
<PAGE>
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 or
Dean Witter Trust FSB, each of which is an affiliate of the Investment  Manager,
serves  as 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 next computed (see "Purchase of Fund Shares") after such  repurchase
order  is  received  by DWR  or  other  Selected Broker-Dealer,  reduced  by any
applicable CDSC.
 
    The CDSC, if any, will be the only fee imposed by the Fund, the  Distributor
or  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. If the shares to be redeemed have recently been purchased
by check, payment of the redemption proceeds may be delayed for the minimum time
 
                                       23
<PAGE>
needed  to verify that the check used  for investment has been honored (not more
than fifteen days from the time of receipt of the check by the Transfer  Agent).
Shareholders   maintaining  margin   accounts  with  DWR   or  another  Selected
Broker-Dealer are referred to their 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 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, on sixty days' notice,
to redeem at their 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  Trustees  or,  in the  case  of  an  account  opened  through
EasyInvest, if after twelve months the shareholder has invested less than $1,000
in  the account.  However, before  the Fund  redeems such  shares and  sends the
proceeds to the shareholder,  it will notify the  shareholder that the value  of
the  shares is less than  the applicable amount and  allow the shareholder sixty
days to make an additional investment in an amount which will increase the value
of his or her 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  pay  monthly  income
dividends  and to distribute net short-term  and net 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 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  and/or  distributions  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 and long-term capital gains to shareholders and remain
qualified as a regulated investment company  under Subchapter M of the Code,  it
is  not expected that the Fund will be required to pay any federal income tax on
such income and capital gains.
 
    Gains or losses  on the  Fund's transactions  in certain  listed options  on
securities  and on futures and  options on futures generally  are treated as 60%
long-term gain/loss  and 40%  short-term  gain/loss. When  the Fund  engages  in
options and futures transactions, various tax regulations applicable to the Fund
may  have the effect  of causing the  Fund to recognize  a gain or  loss for tax
purposes before that  gain or loss  is realized,  or to defer  recognition of  a
realized  loss for tax purposes. Recognition, for tax purposes, of an unrealized
loss may  result in  a lesser  amount of  the Fund's  realized net  gains  being
available for distribution.
 
    As  a regulated investment  company, the Fund is  subject to the requirement
that less than  30% of  its gross  income be derived  from the  sale of  certain
investments held for less than three months (the
 
                                       24
<PAGE>
"Short-Short  Test"). The  treatment of  foreign currency  gains and  gains from
options, futures and forward contracts on foreign currencies is uncertain  under
the  Short Short Test since it is  dependent on whether such gains are "directly
related" to the "business  of investing in stock  or securities (or options  and
futures  with respect to stock or  securities)". Although the Fund believes that
its activities in foreign currencies and options, futures and forward  contracts
on foreign currencies will satisfy the "directly related" standard, the Treasury
and  the Internal Revenue Service  have not yet addressed  the scope of the term
"directly related." As a result, there can be no assurance that future  Treasury
regulations  or rulings issued by the Internal  Revenue Service will not adopt a
restrictive meaning for the term "directly related". In such a case, the  Fund's
activities  in foreign currencies and options,  futures and forward contracts on
foreign currencies would be restricted. Further, if such regulations or  rulings
are  adopted on  a retroactive  basis, and if,  as a  result, the  Fund fails to
satisfy the "Short Short Test", the Fund might be retroactively disqualified  as
a  regulated  investment  company and  the  Fund  might have  to  pay  a federal
corporate income tax on its net investment income and net capital gains.
 
    Shareholders will  normally  have  to  pay federal  income  taxes,  and  any
applicable  state and/or local income taxes,  on the dividends and distributions
they receive from the Fund. Such dividends and distributions, to the extent that
they are derived from  net investment income and  net short-term capital  gains,
are taxable to the shareholder as ordinary dividend income regardless of whether
the shareholder receives such distributions in additional shares or in cash. Any
dividends  declared in the last  quarter of any calendar  year which are paid in
the following  year  prior  to  February  1  will  be  deemed  received  by  the
shareholder in the prior year.
 
    Distributions  of  net  long-term  capital gains,  if  any,  are  taxable to
shareholders as long-term capital gains regardless of how long a shareholder has
held the Fund's shares and regardless of whether the distribution is received in
additional shares or in cash.
 
    The Fund may at times  make payments from sources  other than income or  net
capital gains. Payments from such sources will, in effect, represent a return of
a  portion of each shareholder's investment. All, or a portion, of such payments
will not be taxable to shareholders.
 
    After the  end  of  the  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  and the
portion taxable as long-term capital gains.
 
    To avoid being subject  to a 31% federal  backup withholding tax on  taxable
dividends,  capital  gains distributions  and  the proceeds  of  redemptions and
repurchases, shareholders' taxpayer identification numbers must be furnished and
certified as to their accuracy.
 
    Dividends, interest  and  gains  received  by the  Fund  may  give  rise  to
withholding  and other taxes  imposed by foreign countries.  If it qualifies for
and has made  the appropriate election  with the Internal  Revenue Service,  the
Fund  will report  annually to  its shareholders  the amount  per share  of such
taxes, to enable  shareholders to  claim United  States foreign  tax credits  or
deductions  with respect to such taxes. In  the absence of such an election, the
Fund would  deduct foreign  tax in  computing the  amount of  its  distributable
income.
 
    The   foregoing  discussion  relates  solely   to  the  federal  income  tax
consequences of an investment in the Fund. Distributions may also be subject  to
state  and local taxes; therefore, each shareholder is advised to consult his or
her own tax adviser.
 
                                       25
<PAGE>
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
    From time to time the Fund may  quote its "yield" and/or its "total  return"
in  advertisements and sales literature. Both the  yield and the total return of
the Fund  are based  on historical  earnings and  are not  intended to  indicate
future  performance. The  yield of  the Fund  will be  computed by  dividing the
Fund's net investment income over a 30-day period by an average value (using the
average number of shares entitled to  receive dividends and the net asset  value
per  share at  the end  of the  period), all  in accordance  with applicable new
regulatory requirements. Such amount will be compounded for six months and  then
annualized for a twelve-month period to derive the Fund's yield.
 
    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 and five years, as
well as over  the life of  the Fund.  Average annual total  return reflects  all
income  earned  by the  Fund,  any appreciation  or  depreciation of  the Fund's
assets, all expenses incurred by the 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, and year-by-year or
other types of total  return figures. 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  may  also advertise  the  growth of
hypothetical investments of $10,000, $50,000 and $100,000 in shares of the Fund.
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.
and  Salomon Brothers Treasury  Index, Salomon Brothers  World Government Index,
Salomon Brothers  Corporate  Index, Shearson  Lehman  Corporate/Government  Bond
Index and Donahue's Money Market 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.
 
    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
circumstances,  be held  personally liable  as partners  for 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 Fund
obligations include  such  disclaimer,  and  provides  for  indemnification  and
reimbursement  of expenses 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,  in  the  opinion of
Massachusetts counsel to  the Fund, the  risk to Fund  shareholders of  personal
liability is remote.
 
                                       26
<PAGE>
    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.
 
                                       27
<PAGE>
 
Dean Witter
World Wide Income Trust
                                    Dean Witter
Two World Trade Center
New York, New York 10048            World Wide
TRUSTEES                            Income Trust
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
Vinh Q. Tran
Vice President
Peter J. Seeley
Vice President
Thomas F. Caloia
Treasurer
CUSTODIAN
The Chase Manhattan Bank, N.A.
One Chase Plaza
New York, New York 10005
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.
                                        PROSPECTUS -- DECEMBER 24, 1996
<PAGE>
STATEMENT OF ADDITIONAL
INFORMATION
                                                    DEAN WITTER
                                                    WORLD WIDE
DECEMBER 24, 1996
                                                    INCOME TRUST
- ----------------------------------------------------------------------
 
    Dean   Witter  World  Wide  Income  Trust   (the  "Fund")  is  an  open-end,
non-diversified  management   investment  company,   whose  primary   investment
objective  is to earn a high level  of current income. As a secondary objective,
the Fund will seek appreciation  in the value of its  assets. The Fund seeks  to
achieve  its  investment  objectives  by  investing  primarily  in  fixed-income
securities issued or  guaranteed by  foreign governments, issued  by foreign  or
U.S.  companies, or which are  issued or guaranteed by  the U.S. Government, its
agencies and instrumentalities. See "Investment Practices and Policies."
 
    A Prospectus for the Fund dated December 24, 1996, which provides the  basic
information  you  should know  before  investing in  the  Fund, may  be obtained
without charge from the Fund at the address or telephone numbers listed below or
from the Fund's Distributor, Dean Witter Distributors Inc., or from Dean  Witter
Reynolds  Inc.  at  any of  its  branch  offices. This  Statement  of Additional
Information is not a Prospectus. It contains information in addition to and more
detailed than  that set  forth in  the  Prospectus. It  is intended  to  provide
additional  information regarding the activities and operations of the Fund, and
should be read in conjunction with the Prospectus.
 
Dean Witter
World Wide Income Trust
Two World Trade Center
New York, New York 10048
(212) 392-2550 or
(800) 869-NEWS (toll-free)
<PAGE>
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                                                      <C>
The Fund and Its Management............................................................          3
 
Trustees and Officers..................................................................          6
 
Investment Practices and Policies......................................................         12
 
Investment Restrictions................................................................         27
 
Portfolio Transactions and Brokerage...................................................         29
 
The Distributor........................................................................         30
 
Determination of Net Asset Value.......................................................         33
 
Shareholder Services...................................................................         34
 
Redemptions and Repurchases............................................................         38
 
Dividends, Distributions and Taxes.....................................................         40
 
Performance Information................................................................         42
 
Description of Shares..................................................................         43
 
Custodian and Transfer Agent...........................................................         43
 
Independent Accountants................................................................         43
 
Reports to Shareholders................................................................         44
 
Legal Counsel..........................................................................         44
 
Experts................................................................................         44
 
Registration Statement.................................................................         44
 
Financial Statements -- October 31, 1996...............................................         45
 
Report of Independent Accountants......................................................         58
 
Appendix...............................................................................         59
</TABLE>
 
                                       2
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
THE FUND
 
    The  Fund is a Trust of the type commonly known as a "Massachusetts business
trust" and was organized under the laws of the Commonwealth of Massachusetts  on
October 14, 1988.
 
THE INVESTMENT MANAGER
 
    Dean  Witter InterCapital Inc. (the "Investment Manager" or "InterCapital"),
a Delaware corporation, whose address is  Two World Trade Center, New York,  New
York  10048, is  the Fund's Investment  Manager. InterCapital  is a wholly-owned
subsidiary of Dean Witter, Discover &  Co. ("DWDC"), a Delaware corporation.  In
an  internal  reorganization which  took  place in  January,  1993, InterCapital
assumed  the  investment  advisory,  administrative  and  management  activities
previously  performed by the InterCapital Division  of Dean Witter Reynolds Inc.
("DWR"), a broker-dealer affiliate of InterCapital. (As hereinafter used in this
Statement of Additional  Information, the terms  "InterCapital" and  "Investment
Manager"   refer  to   DWR's  InterCapital   Division  prior   to  the  internal
reorganization  and  Dean  Witter  InterCapital  Inc.  thereafter.)  The   daily
management of the Fund is conducted by or under the direction of officers of the
Fund  and of the  Investment Manager, subject  to review by  the Fund's Board of
Trustees. Information as to these Trustees  and officers is contained under  the
caption "Trustees and Officers".
 
    The  Investment Manager is also the investment manager or investment adviser
of the  following investment  companies:  Dean Witter  Liquid Asset  Fund  Inc.,
InterCapital  Income Securities  Inc., Dean  Witter High  Yield Securities Inc.,
Dean Witter  Tax-Free  Daily Income  Trust,  Dean Witter  Tax-Exempt  Securities
Trust, Dean Witter Dividend Growth Securities Inc., Dean Witter Natural Resource
Development  Securities  Inc.,  Dean  Witter American  Value  Fund,  Dean Witter
Developing Growth Securities  Trust, Dean  Witter U.S.  Government Money  Market
Trust, Dean Witter Variable Investment Series, Dean Witter World Wide Investment
Trust,  Dean  Witter  Select  Municipal  Reinvestment  Fund,  Dean  Witter  U.S.
Government Securities Trust, Dean Witter  California Tax-Free Income Fund,  Dean
Witter  New York Tax-Free Income Fund, Dean Witter Convertible Securities Trust,
Dean Witter Federal  Securities Trust,  Dean Witter  Value-Added Market  Series,
High  Income  Advantage  Trust,  High Income  Advantage  Trust  II,  High Income
Advantage Trust III, Dean Witter Government Income Trust, Dean Witter  Utilities
Fund,   Dean  Witter  California  Tax-Free   Daily  Income  Trust,  Dean  Witter
Intermediate Income  Securities, Dean  Witter  Capital Growth  Securities,  Dean
Witter  New York Municipal Money Market  Trust, Dean Witter European Growth Fund
Inc., Dean Witter  Pacific Growth  Fund Inc.,  Dean Witter  Precious Metals  and
Minerals  Trust, Dean  Witter Global  Short-Term Income  Fund Inc.,  Dean Witter
Strategist Fund, Dean  Witter Multi-State  Municipal Series  Trust, Dean  Witter
Premier  Income Trust, Dean Witter  Short-Term U.S. Treasury Trust, InterCapital
Insured Municipal  Bond  Trust,  InterCapital Insured  Municipal  Income  Trust,
InterCapital Insured Municipal Trust, InterCapital Insured Municipal Securities,
InterCapital  California  Insured Municipal  Income Trust,  InterCapital Insured
California  Municipal  Securities,  InterCapital  Quality  Municipal  Investment
Trust,   InterCapital  Quality  Municipal  Income  Trust,  InterCapital  Quality
Municipal Securities,  InterCapital  California  Quality  Municipal  Securities,
InterCapital  New York Quality Municipal Securities, Dean Witter Global Dividend
Growth Securities,  Dean  Witter  Limited  Term  Municipal  Trust,  Dean  Witter
Short-Term  Bond Fund, Dean Witter Diversified  Income Trust, Dean Witter Health
Sciences Trust,  Dean Witter  Retirement Series,  Dean Witter  Global  Utilities
Fund,  Dean Witter National Municipal Trust, Dean Witter High Income Securities,
Dean Witter International SmallCap Fund,  Dean Witter Mid-Cap Growth Fund,  Dean
Witter  Select Dimensions Investment  Series, Dean Witter  Balanced Growth Fund,
Dean Witter  Balanced Income  Fund,  Dean Witter  Hawaii Municipal  Trust,  Dean
Witter  Japan Fund, Dean  Witter Income Builder Fund,  Dean Witter Special Value
Fund, Dean Witter Capital Appreciation Fund, Dean Witter Information Fund,  Dean
Witter  Intermediate Term U.S. Treasury Trust, Active Assets Money Trust, Active
Assets Tax-Free Trust,  Active Assets California  Tax-Free Trust, Active  Assets
Government  Securities Trust, Municipal Income Trust, Municipal Income Trust II,
Municipal Income Opportunities Trust,  Municipal Income Opportunities Trust  II,
Municipal  Income  Opportunities Trust  III, Municipal  Income Trust  III, Prime
Income Trust  and  Municipal  Premium Income  Trust.  The  foregoing  investment
companies,  together with  the Fund,  are collectively  referred to  as the Dean
Witter Funds.
 
                                       3
<PAGE>
    In addition,  Dean Witter  Services Company  Inc. ("DWSC"),  a  wholly-owned
subsidiary  of InterCapital, serves  as manager for  the following companies for
which TCW Funds Management, Inc. is  the investment adviser: TCW/DW Core  Equity
Trust,  TCW/DW  North American  Government Income  Trust, TCW/DW  Latin American
Growth Fund, TCW/DW Income and Growth Fund, TCW/DW Small Cap Growth Fund, TCW/DW
Balanced Fund, TCW/DW Total  Return Trust, TCW/DW  Mid-Cap Equity Trust,  TCW/DW
Global  Telecom Trust,  TCW/DW Strategic  Income Trust,  TCW/DW Emerging Markets
Opportunities Trust, TCW/DW Term Trust 2000,  TCW/DW Term Trust 2002 and  TCW/DW
Term  Trust  2003  (the  "TCW/DW  Funds").  InterCapital  also  serves  as:  (i)
sub-adviser to  Templeton Global  Opportunities  Trust, an  open-end  investment
company;  (ii)  administrator  of The  BlackRock  Strategic Term  Trust  Inc., a
closed-end  investment  company;  and  (iii)  sub-administrator  of   MassMutual
Participation   Investors  and   Templeton  Global   Governments  Income  Trust,
closed-end investment companies.
 
    Pursuant to an  Investment Management Agreement  (the "Agreement") with  the
Investment  Manager, the Fund has retained  the Investment Manager to manage the
investment of  the  Fund's assets,  including  the  placing of  orders  for  the
purchase  and sale of  portfolio securities. The  Investment Manager obtains and
evaluates such  information  and  advice relating  to  the  economy,  securities
markets,  and  specific  securities  as  it  considers  necessary  or  useful to
continuously manage  the assets  of the  Fund in  a manner  consistent with  its
investment objectives.
 
    Under  the  terms  of the  Agreement,  in  addition to  managing  the Fund's
investments, the Investment Manager  maintains certain of  the Fund's books  and
records  and  furnishes,  at its  own  expense, such  office  space, facilities,
equipment, clerical help and bookkeeping and certain legal services as the  Fund
may reasonably require in the conduct of its business, including the preparation
of  prospectuses,  statements of  additional  information, proxy  statements and
reports required  to be  filed  with federal  and state  securities  commissions
(except  insofar as the  participation or assistance  of independent accountants
and attorneys  is,  in the  opinion  of  the Investment  Manager,  necessary  or
desirable).  In  addition,  the  Investment Manager  pays  the  salaries  of all
personnel, including officers of the Fund,  who are employees of the  Investment
Manager.  The Investment Manager also bears the cost of telephone service, heat,
light, power and other utilities provided to the Fund.
 
    Effective December  31,  1993,  pursuant to  a  Services  Agreement  between
InterCapital  and DWSC, DWSC began to provide the administrative services to the
Fund which  were previously  performed directly  by InterCapital.  On April  17,
1995,  DWSC was  reorganized in the  State of Delaware,  necessitating the entry
into a  new  Services Agreement  by  InterCapital and  DWSC  on that  date.  The
foregoing internal reorganizations did not result in any change in the nature or
scope  of the administrative services  being provided to the  Fund or any of the
fees being paid by the Fund for  the overall services being performed under  the
terms of the existing Agreement.
 
    Expenses not expressly assumed by the Investment Manager under the Agreement
or  by  the Distributor  of  the Fund's  shares,  Dean Witter  Distributors Inc.
("Distributors" or the "Distributor") (see  "The Distributor"), will be paid  by
the  Fund.  The expenses  borne by  the Fund  include, but  are not  limited to:
expenses  of  the  Plan  of  Distribution  pursuant  to  Rule  12b-1  (see  "The
Distributor"),  charges and expenses of any registrar, custodian, stock transfer
and dividend  disbursing  agent;  brokerage commissions;  taxes;  engraving  and
printing  of share certificates;  registration costs of the  Fund and its shares
under federal  and state  securities laws;  the cost  and expense  of  printing,
including   typesetting,  and   distributing  Prospectuses   and  Statements  of
Additional Information  of  the  Fund  and supplements  thereto  to  the  Fund's
shareholders;  all  expenses  of  shareholders' and  Trustees'  meetings  and of
preparing, printing and  mailing proxy statements  and reports to  shareholders;
fees  and  travel expenses  of  Trustees or  members  of any  advisory  board or
committee who  are not  employees of  the Investment  Manager or  any  corporate
affiliate  of the  Investment Manager;  all expenses  incident to  any dividend,
withdrawal or redemption options;  charges and expenses  of any outside  service
used  for pricing  of the  Fund's shares;  fees and  expenses of  legal counsel,
including counsel to the Trustees who are not interested persons of the Fund  or
of  the Investment Manager (not including  compensation or expenses of attorneys
who are  employees  of  the Investment  Manager)  and  independent  accountants;
membership  dues of industry associations; interest on Fund borrowings; postage;
insurance premiums on
 
                                       4
<PAGE>
property or personnel (including officers and Trustees) of the Fund which  inure
to  its benefit;  extraordinary expenses (including,  but not  limited to, legal
claims and liabilities  and litigation  costs and  any indemnification  relating
thereto); and all other costs of the Fund's operation.
 
    As  full compensation for the services  and facilities furnished to the Fund
and expenses of the Fund  assumed by the Investment  Manager, the Fund pays  the
Investment  Manager monthly compensation  calculated daily at  an annual rate of
0.75% of the  daily net  assets of the  Fund up  to $250 million;  0.60% of  the
portion  of the  daily net  assets of  the Fund  exceeding $250  million but not
exceeding $500 million; 0.50% of the portion of the daily net assets of the Fund
exceeding $500 million but not exceeding  $750 million; 0.40% of the portion  of
the  daily net assets  of the Fund  exceeding $750 million  but not exceeding $1
billion; and 0.30% of the daily net assets of the Fund exceeding $1 billion. For
the fiscal years ended October 31, 1994, 1995 and 1996, the Fund accrued to  the
Investment  Manager total compensation in the amounts of $1,674,474, $1,169,823,
and $933,697, respectively.
 
    The Agreement  provides that  in  the absence  of willful  misfeasance,  bad
faith, gross negligence or reckless disregard of its obligations thereunder, the
Investment Manager is not liable to the Fund or any of its investors for any act
or omission by the Investment Manager or for any losses sustained by the Fund or
its  investors. The  Agreement in no  way restricts the  Investment Manager from
acting as investment manager or adviser to others.
 
    The Agreement was initially approved by the Board of Trustees on October 30,
1992 and by the shareholders  of the Fund at  a Special Meeting of  Shareholders
held  on January 12, 1993.  The Agreement is substantially  identical to a prior
investment management agreement which was initially approved by the Trustees  on
January  31, 1989, by DWR as the then  sole shareholder on February 1, 1989, and
by the shareholders of  the Fund at  a Special Meeting  of Shareholders held  on
June  26, 1990. The Agreement took effect on  June 30, 1993 upon the spin-off by
Sears, Roebuck and Co.  of its remaining  shares of DWDC.  The Agreement may  be
terminated  at any time, without penalty, on thirty days' notice by the Board of
Trustees of the Fund, by the holders of a majority, as defined in the Investment
Company Act of 1940 (the  "Act"), of the outstanding shares  of the Fund, or  by
the  Investment Manager. The Agreement will automatically terminate in the event
of its assignment (as defined in the Act).
 
    Under its terms, the  Agreement had an initial  term ending April 30,  1994,
and  will remain in effect from year to year thereafter, provided continuance of
the Agreement is  approved at least  annually by the  vote of the  holders of  a
majority  (as defined in the  Act) of the outstanding shares  of the Fund, or by
the Trustees of  the Fund;  provided that in  either event  such continuance  is
approved  annually by the vote of a majority of the Trustees of the Fund who are
not parties to the Agreement or "interested persons" (as defined in the Act)  of
any  such party (the "Independent Trustees"), which  vote must be cast in person
at a meeting called for the purpose of voting on such approval. At their meeting
held on April  17, 1996,  the Fund's  Board of  Trustees, including  all of  the
Independent  Trustees, approved  the most  recent continuation  of the Agreement
until April 30, 1997.
 
    The Fund has acknowledged that the name "Dean Witter" is a property right of
DWR. The Fund has agreed that DWR or its parent company may use, or at any  time
permit  others to use, the name "Dean Witter".  The Fund has also agreed that in
the  event  the  Agreement  is   terminated,  or  if  the  affiliation   between
InterCapital  and its parent company is  terminated, the Fund will eliminate the
name "Dean Witter" from its name if DWR or its parent company shall so request.
 
                                       5
<PAGE>
TRUSTEES AND OFFICERS
- --------------------------------------------------------------------------------
 
    The Trustees and Executive  Officers of the  Fund, their principal  business
occupations  during the  last five  years and  their affiliations,  if any, with
InterCapital and with the 82 Dean Witter Funds and the 14 TCW/DW Funds are shown
below.
 
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Michael Bozic (55) ...................................  Chairman and Chief Executive  Officer of Levitz  Furniture
Trustee                                                 Corporation (since November, 1995); Director or Trustee of
c/o Levitz Furniture Corporation                        the  Dean  Witter  Funds;  formerly  President  and  Chief
6111 Broken Sound Parkway, N.W.                         Executive  Officer  of   Hills  Department  Stores   (May,
Boca Raton, Florida                                     1991-July,   1995);  formerly  variously  Chairman,  Chief
                                                        Executive Officer, President  and Chief Operating  Officer
                                                        (1987-1991)  of  the  Sears  Merchandise  Group  of Sears,
                                                        Roebuck and Co.; Director of Eaglemark Financial Services,
                                                        Inc., the United Negro College Fund and Weirton Steel Cor-
                                                        poration.
 
Charles A. Fiumefreddo* (63) .........................  Chairman,  Chief   Executive  Officer   and  Director   of
Chairman of the Board, President,                       InterCapital,   DWSC  and   Distributors;  Executive  Vice
Chief Executive Officer and Trustee                     President and  Director  of  DWR;  Chairman,  Director  or
Two World Trade Center                                  Trustee, President and Chief Executive Officer of the Dean
New York, New York                                      Witter   Funds;  Chairman,  Chief  Executive  Officer  and
                                                        Trustee of the TCW/DW Funds; Chairman and Director of Dean
                                                        Witter Trust Company ("DWTC"); Director and/or officer  of
                                                        various   DWDC   subsidiaries;  formerly   Executive  Vice
                                                        President and Director of DWDC (until February, 1993).
 
Edwin J. Garn (64) ...................................  Director or  Trustee of  the Dean  Witter Funds;  formerly
Trustee                                                 United  States Senator (R-Utah)  (1974-1992) and Chairman,
c/o Huntsman Chemical Corporation                       Senate Banking  Committee (1980-1986);  formerly Mayor  of
500 Huntsman Way                                        Salt  Lake  City,  Utah  (1972-1974);  formerly Astronaut,
Salt Lake City, Utah                                    Space  Shuttle   Discovery  (April   12-19,  1985);   Vice
                                                        Chairman,  Huntsman  Chemical Corporation  (since January,
                                                        1993); Director of  Franklin Quest  (time management  sys-
                                                        tems)  and John Alden Financial Corp.; member of the board
                                                        of various civic and charitable organizations.
 
John R. Haire (71) ...................................  Chairman of  the  Audit  Committee  and  Chairman  of  the
Trustee                                                 Committee  of  the Independent  Directors or  Trustees and
Two World Trade Center                                  Director or Trustee of the Dean Witter Funds; Chairman  of
New York, New York                                      the  Audit Committee and Chairman  of the Committee of the
                                                        Independent Trustees  and  Trustee of  the  TCW/DW  Funds;
                                                        formerly   President,   Council  for   Aid   to  Education
                                                        (1978-1989) and Chairman  and Chief  Executive Officer  of
                                                        Anchor  Corporation,  an  Investment  Adviser (1964-1978);
                                                        Director of Washington National Corporation (insurance).
</TABLE>
 
                                       6
<PAGE>
 
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Dr. Manuel H. Johnson (47) ...........................  Senior  Partner,  Johnson  Smick  International,  Inc.,  a
Trustee                                                 consulting  firm;  Koch  Professor  of  International Eco-
c/o Johnson Smick International, Inc.                   nomics and  Director  of  the  Center  for  Global  Market
1133 Connecticut Avenue, N.W.                           Studies  at  George  Mason University;  Co-Chairman  and a
Washington, DC                                          founder  of  the   Group  of  Seven   Council  (G7C),   an
                                                        international  economic commission; Director or Trustee of
                                                        the Dean  Witter  Funds;  Trustee  of  the  TCW/DW  Funds;
                                                        Director   of  NASDAQ  (since  June,  1995);  Director  of
                                                        Greenwich Capital  Corp.  (broker-dealer):  formerly  Vice
                                                        Chairman  of the Board of Governors of the Federal Reserve
                                                        System (1986-1990)  and Assistant  Secretary of  the  U.S.
                                                        Treasury (1982-1986).
 
Michael E. Nugent (60) ...............................  General   Partner,  Triumph   Capital,  L.P.,   a  private
Trustee                                                 investment partnership; Director  or Trustee  of the  Dean
c/o Triumph Capital, L.P.                               Witter  Funds; Trustee of the  TCW/DW Funds; formerly Vice
237 Park Avenue                                         President,  Bankers   Trust   Company   and   BT   Capital
New York, New York                                      Corporation  (1984-1988);  Director  of  various  business
                                                        organizations.
 
Philip J. Purcell* (53) ..............................  Chairman of  the Board  of Directors  and Chief  Executive
Trustee                                                 Officer  of  DWDC,  DWR and  Novus  Credit  Services Inc.;
Two World Trade Center                                  Director of InterCapital, DWSC and Distributors;  Director
New York New York                                       or  Trustee  of  the Dean  Witter  Funds;  Director and/or
                                                        officer of various DWDC subsidiaries.
 
John L. Schroeder (66) ...............................  Retired; Director  or Trustee  of the  Dean Witter  Funds;
Trustee                                                 Trustee   of  the  TCW/DW   Funds;  Director  of  Citizens
c/o Gordon Altman Butowsky Weitzen                      Utilities Company; formerly  Executive Vice President  and
 Shalov & Wein                                          Chief  Investment  Officer of  the Home  Insurance Company
Counsel to the Independent Trustees                     (August, 1991-September,  1995)  and  Chairman  and  Chief
114 West 47th Street                                    Investment  Officer  of  Axe-Houghton  Management  and the
New York, New York                                      Axe-Houghton Funds (1983-1991).
 
Sheldon Curtis (64) ..................................  Senior Vice President,  Secretary and  General Counsel  of
Vice President, Secretary                               InterCapital and DWSC; Senior Vice President and Secretary
 and General Counsel                                    of  DWTC; Senior  Vice President,  Assistant Secretary and
Two World Trade Center                                  Assistant  General  Counsel  of  Distributors;   Assistant
New York, New York                                      Secretary  of DWR;  Vice President,  Secretary and General
                                                        Counsel of the Dean Witter Funds and the TCW/DW Funds.
</TABLE>
 
                                       7
<PAGE>
 
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Vinh Q. Tran (50) ....................................  Vice President of InterCapital; Vice President of  various
Vice President                                          Dean Witter Funds.
Two World Trade Center
New York, New York
 
Peter J. Seeley (47) .................................  Senior  Fixed-Income  Portfolio Manager  with InterCapital
Vice President                                          (since July,  1994);  formerly Senior  Vice  President  of
Two World Trade Center                                  Nikko  Capital Management  (October, 1992-June,  1994) and
New York, New York                                      prior   thereto   First   Vice   President   of   Shroders
                                                        Incorporated.
 
Thomas F. Caloia (50) ................................  First  Vice  President and  Assistant Treasurer  of Inter-
Treasurer                                               Capital and DWSC; Treasurer of  the Dean Witter Funds  and
Two World Trade Center                                  the TCW/DW Funds.
New York, New York
<FN>
- ------------------------
 *Denotes  Trustees who are "interested persons" of  the Fund, as defined in the
  Act.
</TABLE>
 
    In addition, Robert  M. Scanlan,  President and Chief  Operating Officer  of
InterCapital  and DWSC,  Executive Vice President  of Distributors  and DWTC and
Director of DWTC, Robert  S. Giambrone, Senior  Vice President of  InterCapital,
DWSC,  Distributors  and DWTC  and Director  of DWTC,  and Joseph  J. McAlinden,
Executive Vice  President  and  Chief Investment  Officer  of  InterCapital  and
Director  of DWTC, are Vice Presidents of the Fund. Marilyn K. Cranney and Barry
Fink, First Vice Presidents and  Assistant General Counsels of InterCapital  and
DWSC,  Lou Anne D. McInnis and Ruth Rossi, Vice Presidents and Assistant General
Counsels of InterCapital and DWSC, and Carsten Otto and Frank Bruttomesso, Staff
Attorneys with InterCapital, are Assistant Secretaries of the Fund.
 
THE BOARD OF TRUSTEES, THE INDEPENDENT TRUSTEES, AND THE COMMITTEES
 
    The Board of Trustees consists of eight (8) trustees. These same individuals
also serve as directors or  trustees for all of the  Dean Witter Funds, and  are
referred  to in this  section as Trustees. As  of the date  of this Statement of
Additional Information, there are a total of 82 Dean Witter Funds, comprised  of
122  portfolios. As of  November 30, 1996,  the Dean Witter  Funds had total net
assets of approximately $82.2 billion and more than five million shareholders.
 
    Six Trustees  (75% of  the total  number) have  no affiliation  or  business
connection with InterCapital or any of its affiliated persons and do not own any
stock  or other securities issued by  InterCapital's parent company, DWDC. These
are the "disinterested" or "independent"  Trustees. The other two Trustees  (the
"management  Trustees")  are  affiliated  with  InterCapital.  Four  of  the six
independent Trustees are also Independent Trustees of the TCW/DW Funds.
 
    Law and regulation establish both general guidelines and specific duties for
the Independent Trustees.  The Dean  Witter Funds seek  as Independent  Trustees
individuals  of distinction and  experience in business  and finance, government
service or academia; these are people whose advice and counsel are in demand  by
others  and for  whom there is  often competition.  To accept a  position on the
Funds' Boards, such individuals may reject other attractive assignments  because
the  Funds make  substantial demands  on their time.  Indeed, by  serving on the
Funds' Boards, certain Trustees who would  otherwise be qualified and in  demand
to serve on bank boards would be prohibited by law from doing so.
 
    All  of the Independent Trustees serve as members of the Audit Committee and
the Committee of the Independent Trustees.  Three of them also serve as  members
of  the Derivatives Committee. During the calendar year ended December 31, 1995,
the three Committees held a combined total of fifteen
 
                                       8
<PAGE>
meetings. The Committees hold some  meetings at InterCapital's offices and  some
outside  InterCapital.  Management  Trustees  or officers  do  not  attend these
meetings unless  they are  invited  for purposes  of furnishing  information  or
making a report.
 
    The  Committee of the  Independent Trustees is  charged with recommending to
the full Board  approval of management,  advisory and administration  contracts,
Rule  12b-1  plans  and distribution  and  underwriting  agreements; continually
reviewing Fund performance;  checking on  the pricing  of portfolio  securities,
brokerage  commissions, transfer agent costs  and performance, and trading among
Funds in the  same complex; and  approving fidelity bond  and related  insurance
coverage and allocations, as well as other matters that arise from time to time.
The Independent Trustees are required to select and nominate individuals to fill
any  Independent Trustee vacancy on the Board of  any Fund that has a Rule 12b-1
plan of distribution. Most of the Dean Witter Funds have such a plan.
 
    The Audit  Committee is  charged with  recommending to  the full  Board  the
engagement  or  discharge  of  the  Fund's  independent  accountants;  directing
investigations into matters  within the  scope of  the independent  accountants'
duties,  including the power  to retain outside  specialists; reviewing with the
independent accountants the audit plan  and results of the auditing  engagement;
approving  professional  services provided  by  the independent  accountants and
other accounting firms prior to the performance of such services; reviewing  the
independence  of the independent accountants; considering the range of audit and
non-audit fees;  reviewing  the  adequacy  of  the  Fund's  system  of  internal
controls;  and preparing  and submitting Committee  meeting minutes  to the full
Board.
 
    Finally, the  Board of  each  Fund has  formed  a Derivatives  Committee  to
establish  parameters for and oversee the activities of the Fund with respect to
derivative investments, if any, made by the Fund.
 
DUTIES OF CHAIRMAN OF COMMITTEE OF THE INDEPENDENT TRUSTEES AND THE AUDIT
COMMITTEE
 
    The Chairman of  the Committee  of the  Independent Trustees  and the  Audit
Committee  maintains an  office at  the Funds' headquarters  in New  York. He is
responsible for keeping abreast of regulatory and industry developments and  the
Funds'  operations and management. He  screens and/or prepares written materials
and identifies  critical  issues  for  the  Independent  Trustees  to  consider,
develops  agendas  for Committee  meetings, determines  the  type and  amount of
information that the Committees will need to form a judgment on various  issues,
and  arranges to have  that information furnished to  Committee members. He also
arranges for  the services  of independent  experts and  consults with  them  in
advance  of meetings  to help  refine reports and  to focus  on critical issues.
Members of the Committees believe that the person who serves as Chairman of both
Committees and guides their efforts is  pivotal to the effective functioning  of
the Committees.
 
    The  Chairman of the  Committees also maintains  continuous contact with the
Funds' management, with independent counsel to the Independent Trustees and with
the Funds' independent auditors.  He arranges for a  series of special  meetings
involving  the  annual  review  of  investment  advisory,  management  and other
operating contracts of  the Funds  and, on  behalf of  the Committees,  conducts
negotiations with the Investment Manager and other service providers. In effect,
the  Chairman of the Committees  serves as a combination  of chief executive and
support staff of the Independent Trustees.
 
    The Chairman of  the Committee  of the  Independent Trustees  and the  Audit
Committee  is  not  employed by  any  other  organization and  devotes  his time
primarily to  the services  he performs  as Committee  Chairman and  Independent
Trustee  of the Dean Witter Funds and  as an Independent Trustee and, since July
1, 1996, as Chairman of the Committee of the Independent Trustees and the  Audit
Committee  of the TCW/DW Funds. The current Committee Chairman has had more than
35 years experience as a senior executive in the investment company industry.
 
ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT TRUSTEES FOR ALL DEAN
WITTER FUNDS
 
    The Independent Trustees and the  Funds' management believe that having  the
same  Independent  Trustees  for  each  of  the  Dean  Witter  Funds  avoids the
duplication  of  effort  that  would  arise  from  having  different  groups  of
individuals  serving as Independent  Trustees for each  of the Funds  or even of
sub-groups of Funds.  They believe  that having  the same  individuals serve  as
Independent Trustees of all the
 
                                       9
<PAGE>
Funds  tends to increase  their knowledge and  expertise regarding matters which
affect the Fund  complex generally and  enhances their ability  to negotiate  on
behalf  of each  Fund with the  Fund's service providers.  This arrangement also
precludes the possibility of separate groups of Independent Trustees arriving at
conflicting decisions  regarding  operations and  management  of the  Funds  and
avoids  the cost and confusion that would likely ensue. Finally, having the same
Independent Trustees serve on all Fund Boards enhances the ability of each  Fund
to  obtain, at modest  cost to each  separate Fund, the  services of Independent
Trustees, and a  Chairman of their  Committees, of the  caliber, experience  and
business acumen of the individuals who serve as Independent Trustees of the Dean
Witter Funds.
 
COMPENSATION OF INDEPENDENT TRUSTEES
 
    The  Fund pays each Independent  Trustee an annual fee  of $1,000 plus a per
meeting fee of $50 for  meetings of the Board of  Trustees or committees of  the
Board  of Trustees attended  by the Trustee  (the Fund pays  the Chairman of the
Audit Committee an annual fee of $750 and pays the Chairman of the Committee  of
the  Independent Trustees  an additional  annual fee  of $1,200).  The Fund also
reimburses such Trustees for travel and other out-of-pocket expenses incurred by
them in connection with  attending such meetings. Trustees  and officers of  the
Fund  who are or have  been employed by the  Investment Manager or an affiliated
company receive no compensation or expense reimbursement from the Fund.
 
    The  following  table  illustrates  the  compensation  paid  to  the  Fund's
Independent Trustees by the Fund for the fiscal year ended October 31, 1996.
 
                               FUND COMPENSATION
 
<TABLE>
<CAPTION>
                                                                   AGGREGATE
                                                                 COMPENSATION
NAME OF INDEPENDENT TRUSTEE                                      FROM THE FUND
- --------------------------------------------------------------  ---------------
<S>                                                             <C>
Michael Bozic.................................................      $1,750
Edwin J. Garn.................................................       1,850
John R. Haire.................................................       3,900
Dr. Manuel H. Johnson.........................................       1,800
Michael E. Nugent.............................................       1,750
John L. Schroeder.............................................       1,800
</TABLE>
 
    The  following  table  illustrates  the  compensation  paid  to  the  Fund's
Independent Trustees for the calendar year ended December 31, 1995 for  services
to  the 79 Dean Witter Funds and, in  the case of Messrs. Haire, Johnson, Nugent
and Schroeder, the 11 TCW/DW Funds that were in operation at December 31,  1995.
With  respect to Messrs. Haire, Johnson,  Nugent and Schroeder, the TCW/DW Funds
are included solely because of a limited exchange privilege between those  Funds
and  five Dean Witter Money Market Funds. Mr. Schroeder was elected as a Trustee
of the TCW/DW Funds on April 20, 1995.
 
              COMPENSATION FROM DEAN WITTER FUNDS AND TCW/DW FUNDS
 
<TABLE>
<CAPTION>
                                                                                        TOTAL
                                                                   FOR SERVICE AS   COMPENSATION
                               FOR SERVICE                          CHAIRMAN OF         PAID
                              AS DIRECTOR OR                       COMMITTEES OF    FOR SERVICES
                               TRUSTEE AND       FOR SERVICE AS     INDEPENDENT          TO
                             COMMITTEE MEMBER     TRUSTEE AND        DIRECTORS/        79 DEAN
                                OF 79 DEAN      COMMITTEE MEMBER    TRUSTEES AND       WITTER
                                  WITTER          OF 11 TCW/DW         AUDIT        FUNDS AND 11
NAME OF INDEPENDENT TRUSTEE       FUNDS              FUNDS           COMMITTEES     TCW/DW FUNDS
- ---------------------------  ----------------   ----------------   --------------   -------------
<S>                          <C>                <C>                <C>              <C>
Michael Bozic..............      $126,050           --                 --             $126,050
Edwin J. Garn..............       136,450           --                 --              136,450
John R. Haire..............        98,450           $82,038           $217,350(1)      397,838
Dr. Manuel H. Johnson......       136,450            82,038            --              218,488
Michael E. Nugent..........       124,200            75,038            --              199,238
John L. Schroeder..........       136,450            46,964            --              183,414
</TABLE>
 
- ------------------------
(1) For the 79  Dean Witter Funds  in operation at December  31, 1995. As  noted
    above,  on July 1, 1996,  Mr. Haire became Chairman  of the Committee of the
    Independent Trustees and the Audit Committee of the TCW/DW Funds in addition
    to continuing to serve in such positions for the Dean Witter Funds.
 
                                       10
<PAGE>
    As of the date of this Statement  of Additional Information, 57 of the  Dean
Witter  Funds, including the Fund, have adopted a retirement program under which
an Independent Trustee  who retires after  serving for at  least five years  (or
such lesser period as may be determined by the Board) as an Independent Director
or Trustee of any Dean Witter Fund that has adopted the retirement program (each
such Fund referred to as an "Adopting Fund" and each such Trustee referred to as
an  "Eligible Trustee")  is entitled  to retirement  payments upon  reaching the
eligible retirement age (normally, after attaining age 72). Annual payments  are
based  upon length of service. Currently, upon retirement, each Eligible Trustee
is entitled to  receive from  the Adopting  Fund, commencing  as of  his or  her
retirement  date and continuing for the remainder  of his or her life, an annual
retirement benefit (the "Regular Benefit") equal to 25.0% of his or her Eligible
Compensation plus 0.4166666% of such  Eligible Compensation for each full  month
of  service as an Independent Director or Trustee of any Adopting Fund in excess
of five years up to a maximum of 50.0% after ten years of service. The foregoing
percentages may be changed by the Board.(2) "Eligible Compensation" is one-fifth
of the total  compensation earned by  such Eligible Trustee  for service to  the
Adopting  Fund  in  the five  year  period prior  to  the date  of  the Eligible
Trustee's retirement. Benefits under the  retirement program are not secured  or
funded by the Adopting Funds.
 
    The  following  table illustrates  the  retirement benefits  accrued  to the
Fund's Independent Trustees by  the Fund for the  fiscal year ended October  31,
1996  and by the  57 Dean Witter Funds  (including the Fund)  as of December 31,
1995, and the estimated retirement benefits for the Fund's Independent  Trustees
from  the Fund as of  October 31, 1996 and  from the 57 Dean  Witter Funds as of
December 31, 1995.
 
          RETIREMENT BENEFITS FROM THE FUND AND ALL DEAN WITTER FUNDS
 
<TABLE>
<CAPTION>
                                             FOR ALL ADOPTING FUNDS            RETIREMENT BENEFITS        ESTIMATED ANNUAL
                                     --------------------------------------    ACCRUED AS EXPENSES            BENEFITS
                                          ESTIMATED                                                      UPON RETIREMENT(3)
                                       CREDITED YEARS         ESTIMATED      ------------------------  ----------------------
                                        OF SERVICE AT       PERCENTAGE OF                   BY ALL       FROM      FROM ALL
                                         RETIREMENT           ELIGIBLE         BY THE      ADOPTING       THE      ADOPTING
NAME OF INDEPENDENT TRUSTEE             (MAXIMUM 10)        COMPENSATION        FUND         FUNDS       FUND        FUNDS
- -----------------------------------  -------------------  -----------------  -----------  -----------  ---------  -----------
<S>                                  <C>                  <C>                <C>          <C>          <C>        <C>
Michael Bozic......................              10               50.0%       $     393   $    26,359  $     950  $    51,550
Edwin J. Garn......................              10               50.0              577        41,901        950       51,550
John R. Haire......................              10               50.0              372       261,763      2,343      130,404
Dr. Manuel H. Johnson..............              10               50.0              240        16,748        950       51,550
Michael E. Nugent..................              10               50.0              413        30,370        950       51,550
John L. Schroeder..................               8               41.7              763        51,812        792       42,958
</TABLE>
 
- ------------------------
(2) An Eligible Trustee  may elect alternate payments  of his or her  retirement
    benefits  based upon the  combined life expectancy  of such Eligible Trustee
    and his or her spouse on the date of such Eligible Trustee's retirement. The
    amount estimated to be payable under  this method, through the remainder  of
    the  later of  the lives of  such Eligible  Trustee and spouse,  will be the
    actuarial equivalent  of  the Regular  Benefit.  In addition,  the  Eligible
    Trustee  may elect that the surviving  spouse's periodic payment of benefits
    will be equal  to either 50%  or 100%  of the previous  periodic amount,  an
    election  that, respectively,  increases or decreases  the previous periodic
    amount so that the  resulting payments will be  the actuarial equivalent  of
    the Regular Benefit.
 
(3)  Based on  current levels  of compensation.  Amount of  annual benefits also
    varies depending on the Trustee's elections described in Footnote (2) above.
 
    As of the date  of this Statement of  Additional Information, the  aggregate
number of shares of beneficial interest of the Fund owned by the Fund's officers
and  Trustees  as a  group  was less  than  1 percent  of  the Fund's  shares of
beneficial interest outstanding.
 
                                       11
<PAGE>
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------
 
CONVERTIBLE SECURITIES
 
    The Fund may invest  in fixed-income securities  which are convertible  into
common  stock.  Convertible  securities  rank  senior  to  common  stocks  in  a
corporation's capital  structure  and,  therefore, entail  less  risk  than  the
corporation's common stock. The value of a convertible security is a function of
its "investment value" (its value as if it did not have a conversion privilege),
and  its "conversion value" (the security's worth if it were to be exchanged for
the underlying security, at market value, pursuant to its conversion privilege).
 
    To the extent that a convertible security's investment value is greater than
its conversion  value,  its  price  will  be  primarily  a  reflection  of  such
investment  value and its price  will be likely to  increase when interest rates
fall and decrease when interest rates rise, as with a fixed-income security (the
credit standing of the issuer and other  factors may also have an effect on  the
convertible  security's value). If  the conversion value  exceeds the investment
value, the price  of the  convertible security  will rise  above its  investment
value  and, in addition,  will sell at  some premium over  its conversion value.
(This premium  represents  the  price  investors are  willing  to  pay  for  the
privilege  of purchasing a  fixed-income security with  a possibility of capital
appreciation due to the  conversion privilege.) At such  times the price of  the
convertible  security  will tend  to fluctuate  directly with  the price  of the
underlying equity security. Convertible securities may be purchased by the  Fund
at  varying price levels  above their investment  values and/or their conversion
values in keeping with the Fund's objectives.
 
WARRANTS
 
    The Fund may acquire warrants which are attached to fixed-income  securities
purchased  for its portfolio and hold such warrants until the Investment Manager
determines it is prudent to sell. Warrants are, in effect, an option to purchase
equity securities at a specific price, generally valid for a specific period  of
time,  and  have no  voting rights,  pay no  dividends and  have no  rights with
respect to the corporations issuing them. If warrants remain unexercised at  the
end  of the exercise period,  they will lapse and  the Fund's investment in them
will be lost. The  prices of warrants  do not necessarily  move parallel to  the
prices of the underlying securities.
 
U.S. GOVERNMENT SECURITIES
 
    Securities  issued by the U.S. Government, its agencies or instrumentalities
in which the Fund may invest include:
 
        (1) U.S. Treasury bills (maturities of one year or less), U.S.  Treasury
    notes  (maturities of one  to ten years) and  U.S. Treasury bonds (generally
    maturities of greater than ten years),  all of which are direct  obligations
    of  the U.S.  Government and,  as such,  are backed  by the  "full faith and
    credit" of the United States.
 
        (2) Securities  issued by  agencies and  instrumentalities of  the  U.S.
    Government  which are  backed by  the full  faith and  credit of  the United
    States. Among the  agencies and instrumentalities  issuing such  obligations
    are  the Federal  Housing Administration,  the Government  National Mortgage
    Association ("GNMA"), the Department of  Housing and Urban Development,  the
    Export-Import  Bank, the  Farmers Home Administration,  the General Services
    Administration,  the  Maritime   Administration  and   the  Small   Business
    Administration.  The maturities of such  obligations range from three months
    to 30 years.
 
        (3) Securities issued  by agencies and  instrumentalities which are  not
    backed  by the full faith and credit of the United States, but whose issuing
    agency or instrumentality has the right to borrow, to meet its  obligations,
    from  an existing line of credit with  the U.S. Treasury. Among the agencies
    and instrumentalities  issuing such  obligations  are the  Tennessee  Valley
    Authority,  the Federal National Mortgage  Association ("FNMA"), the Federal
    Home Loan Mortgage Corporation ("FHLMC") and the U.S. Postal Service.
 
                                       12
<PAGE>
        (4) Securities issued  by agencies and  instrumentalities which are  not
    backed  by the  full faith and  credit of  the United States,  but which are
    backed by the  credit of the  issuing agency or  instrumentality. Among  the
    agencies and instrumentalities issuing such obligations are the Federal Farm
    Credit System and the Federal Home Loan Banks.
 
    Neither  the value nor the yield of the U.S. Government securities which may
be invested in by the Fund is guaranteed by the U.S. Government. Such values and
yield will  fluctuate  with  changes  in prevailing  interest  rates  and  other
factors.  Generally, as  prevailing interest rates  rise, the value  of any U.S.
Government securities held by  the Fund will fall.  Such securities with  longer
maturities  generally tend to  produce higher yields and  are subject to greater
market fluctuation as a result of changes in interest rates than debt securities
with shorter maturities.
 
ZERO COUPON TREASURY SECURITIES
 
    A portion of  the U.S. Government  securities purchased by  the Fund may  be
"zero  coupon" Treasury  securities. These  are U.S.  Treasury bills,  notes and
bonds which have been stripped of their unmatured interest coupons and  receipts
or   which  are  certificates  representing  interests  in  such  stripped  debt
obligations and coupons. Such securities are purchased at a discount from  their
face  amount, giving  the purchaser  the right  to receive  their full  value at
maturity. A zero coupon security pays no interest to its holder during its life.
Its value to an investor  consists of the difference  between its face value  at
the time of maturity and the price for which it was acquired, which is generally
an  amount significantly less  than its face  value (sometimes referred  to as a
"deep discount" price). The Fund intends to invest in such zero coupon  treasury
securities  as  STRIPS,  Treasury Receipts,  Physical  Coupons,  and Proprietary
Receipts.
 
    The  interest  earned  on  such  securities  is,  implicitly,  automatically
compounded  and paid out at maturity. While  such compounding at a constant rate
eliminates the risk of receiving lower  yields upon reinvestment of interest  if
prevailing  interest rates decline, the owner of  a zero coupon security will be
unable to participate in higher yields upon reinvestment of interest received if
prevailing interest  rates rise.  For this  reason, zero  coupon securities  are
subject  to substantially  greater market  price fluctuations  during periods of
changing prevailing interest  rates than  are comparable  debt securities  which
make  current distributions of interest. Current federal tax law requires that a
holder (such as  the Fund) of  a zero coupon  security accrue a  portion of  the
discount at which the security was purchased as income each year even though the
Fund receives no interest payments in cash on the security during the year.
 
    Currently  the only  U.S. Treasury  security issued  without coupons  is the
Treasury bill. However, in the  last few years a  number of banks and  brokerage
firms  have  separated  ("stripped")  the  principal  portions  from  the coupon
portions of the U.S. Treasury  bonds and notes and  sold them separately in  the
form  of  receipts or  certificates  representing undivided  interests  in these
instruments (which instruments are  generally held by a  bank in a custodial  or
trust account).
 
MONEY MARKET INSTRUMENTS
 
    As stated in the Prospectus, the money market instruments which the Fund may
purchase  include  U.S.  Government  securities,  bank  obligations,  Eurodollar
certificates of  deposit, obligations  of  savings institutions,  fully  insured
certificates of deposit and commercial paper. Such securities are limited to:
 
    U.S.  GOVERNMENT  SECURITIES.    Obligations  issued  or  guaranteed  as  to
principal and  interest  by the  United  States or  its  agencies (such  as  the
Export-Import  Bank  of the  United States,  Federal Housing  Administration and
Government National Mortgage Association) or its instrumentalities (such as  the
Federal Home Loan Bank), including Treasury bills, notes and bonds;
 
    BANK  OBLIGATIONS.    Obligations  (including  certificates  of  deposit and
bankers' acceptances) of banks subject to regulation by the U.S. Government  and
having  total assets of $1,000,000,000 or  more, and instruments secured by such
obligations, not including  obligations of  foreign branches  of domestic  banks
except to the extent below;
 
    EURODOLLAR  CERTIFICATES  OF DEPOSIT.    Eurodollar certificates  of deposit
issued  by  foreign  branches   of  domestic  banks   having  total  assets   of
$1,000,000,000 or more;
 
                                       13
<PAGE>
    OBLIGATIONS  OF SAVINGS  INSTITUTIONS.   Certificates of  deposit of savings
banks and savings and loan  associations, having total assets of  $1,000,000,000
or more;
 
    FULLY INSURED CERTIFICATES OF DEPOSIT.  Certificates of deposit of banks and
savings  institutions, having total  assets of less  than $1,000,000,000, if the
principal amount of the obligation is insured by the Bank Insurance Fund or  the
Savings Association Insurance Fund (each of which is administered by the Federal
Deposit  Insurance  Corporation),  limited  to  $100,000  principal  amount  per
certificate and  to  10%  or  less  of the  Fund's  total  assets  in  all  such
obligations and in all illiquid assets, in the aggregate;
 
    COMMERCIAL  PAPER.  Commercial paper rated  within the two highest grades by
S&P or the highest grade by Moody's or, if not rated, issued by a company having
an outstanding debt issue rated at least AA by S&P or Aa by Moody's.
 
FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS
 
    As discussed in  the Prospectus,  the Fund  may enter  into forward  foreign
currency   exchange  contracts   ("forward  contracts")   as  a   hedge  against
fluctuations in future foreign exchange rates. The Fund will conduct its foreign
currency exchange transactions either on a  spot (i.e., cash) basis at the  spot
rate  prevailing in  the foreign currency  exchange market,  or through entering
into forward  contracts  to  purchase  or sell  foreign  currencies.  A  forward
contract  involves an obligation  to purchase or  sell a specific  currency at a
future date, which may be any fixed number of days from the date of the contract
agreed upon by the parties,  at a price set at  the time of the contract.  These
contracts are traded in the interbank market conducted directly between currency
traders  and their customers.  Such forward contracts will  only be entered into
with United States  banks and  their foreign branches,  insurance companies  and
other  dealers whose  assets total  $1 billion  or more  or foreign  banks whose
assets total $1  billion or more.  A forward contract  generally has no  deposit
requirement, and no commissions are charged at any stage for trades.
 
    When  management  of the  Fund believes  that the  currency of  a particular
foreign country may suffer  a substantial movement against  the U.S. dollar,  it
may  enter into a  forward contract to purchase  or sell, for  a fixed amount of
dollars or  other currency,  the amount  of foreign  currency approximating  the
value  of some  or all  of the Fund's  portfolio securities  denominated in such
foreign currency.  The  Fund will  not  enter  into such  forward  contracts  or
maintain  a  net  exposure  to  such contracts  where  the  consummation  of the
contracts would obligate the  Fund to deliver an  amount of foreign currency  in
excess  of  the  value  of  the  Fund's  portfolio  securities  or  other assets
denominated in that currency. Under  normal circumstances, consideration of  the
prospect  for  currency  parities  will be  incorporated  into  the  longer term
investment decisions  made with  regard to  overall diversification  strategies.
However,  the  Investment Manager  believes  that it  is  important to  have the
flexibility to enter  into such forward  contracts when it  determines that  the
best  interests of the Fund will be served. The Fund's custodian bank will place
cash, U.S. Government  securities, high  grade debt securities  or other  liquid
securities  in a segregated account of the Fund  in an amount equal to the value
of the Fund's total  assets committed to the  consummation of forward  contracts
entered  into  under the  circumstances set  forth  above. If  the value  of the
securities placed  in  the  segregated  account  declines,  additional  cash  or
securities  will be placed in the account on  a daily basis so that the value of
the account will equal the amount of the Fund's commitments with respect to such
contracts.
 
    Where, for example, the Fund is  hedging a portfolio position consisting  of
foreign  fixed-income  securities  denominated  in  a  foreign  currency against
adverse exchange rate moves  vis-a-vis the U.S. dollar,  at the maturity of  the
forward  contract for delivery by  the Fund of a  foreign currency, the Fund may
either sell the portfolio security and make delivery of the foreign currency, or
it may retain the security and  terminate its contractual obligation to  deliver
the  foreign  currency  by purchasing  an  "offsetting" contract  with  the same
currency trader obligating it to purchase,  on the same maturity date, the  same
amount of the foreign currency. It is impossible to forecast the market value of
portfolio  securities at the expiration of  the contract. Accordingly, it may be
necessary for  the Fund  to purchase  additional foreign  currency on  the  spot
market  (and  bear the  expense of  such purchase)  if the  market value  of the
security is less than the  amount of foreign currency  the Fund is obligated  to
deliver and if a decision is made to
 
                                       14
<PAGE>
sell  the security and make delivery of the foreign currency. Conversely, it may
be necessary to sell on  the spot market some  of the foreign currency  received
upon the sale of the portfolio securities if its market value exceeds the amount
of foreign currency the Fund is obligated to deliver.
 
    If  the Fund retains  the portfolio securities and  engages in an offsetting
transaction, the Fund will  incur a gain  or loss to the  extent that there  has
been  movement in  spot or forward  contract prices.  If the Fund  engages in an
offsetting transaction, it may subsequently enter into a new forward contract to
sell the  foreign currency.  Should  forward prices  decline during  the  period
between  the Fund's entering into  a forward contract for  the sale of a foreign
currency and the date it enters into an offsetting contract for the purchase  of
the  foreign currency, the Fund  will realize a gain to  the extent the price of
the currency it  has agreed to  sell exceeds the  price of the  currency it  has
agreed  to purchase. Should forward prices increase, the Fund will suffer a loss
to the extent the price  of the currency it has  agreed to purchase exceeds  the
price of the currency it has agreed to sell.
 
    If  the Fund purchases a fixed-income  security which is denominated in U.S.
dollars but which will pay  out its principal based upon  a formula tied to  the
exchange  rate between  the U.S.  dollar and  a foreign  currency, it  may hedge
against a decline  in the principal  value of  the security by  entering into  a
forward  contract to sell  an amount of  the relevant foreign  currency equal to
some or all of the principal value of the security.
 
    At times when the Fund  has written a call or  put option on a  fixed-income
security or the currency in which it is denominated, it may wish to enter into a
forward  contract to purchase or sell the foreign currency in which the security
is denominated. A  forward contract would,  for example, hedge  the risk of  the
security  on which a call currency option has been written declining in value to
a greater extent than the value of the premium received for the option. The Fund
will maintain with its Custodian at all times, cash, U.S. Government securities,
high grade debt obligations or other  liquid securities in a segregated  account
equal  in  value  to  all  forward  contract  obligations  and  option  contract
obligations entered into in hedge situations such as this.
 
    Although the Fund values its assets daily in terms of U.S. dollars, it  does
not  intend to convert its holdings of foreign currencies into U.S. dollars on a
daily basis. It will, however, do so from time to time, and investors should  be
aware  of the costs of currency conversion. Although foreign exchange dealers do
not charge a fee for  conversion, they do realize a  profit based on the  spread
between  the prices  at which  they are  buying and  selling various currencies.
Thus, a dealer may  offer to sell a  foreign currency to the  Fund at one  rate,
while  offering a lesser rate of exchange  should the Fund desire to resell that
currency to the dealer.
 
OPTIONS AND FUTURES TRANSACTIONS
 
    As discussed in  the Prospectus,  the Fund  may write  covered call  options
against  securities held  in its portfolio  and covered put  options on eligible
portfolio securities and stock indexes and  purchase options of the same  series
to  effect closing transactions, and may  hedge against potential changes in the
market value  of investments  (or anticipated  investments) and  facilitate  the
reallocation  of the  Fund's assets  into and  out of  equities and fixed-income
securities by  purchasing  put  and  call  options  on  portfolio  (or  eligible
portfolio)  securities and engaging in  transactions involving futures contracts
and options on such contracts.
 
    Call and put  options on  U.S. Treasury notes,  bonds and  bills and  equity
securities  are  listed  on  Exchanges  (currently  the  Chicago  Board  Options
Exchange, American  Stock  Exchange,  New York  Stock  Exchange,  Pacific  Stock
Exchange  and Philadelphia Stock  Exchange) and are  written in over-the-counter
transactions ("OTC Options"). Listed options 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
 
                                       15
<PAGE>
would  give the Fund the right to sell the underlying security to the OCC at the
stated exercise price. Upon notice of exercise of the put option, the writer  of
the  put would have the obligation to  purchase the underlying security from the
OCC at the exercise price.
 
    OPTIONS ON TREASURY BONDS  AND NOTES.  Because  trading interest in  options
written  on  Treasury bonds  and  notes tends  to  center on  the  most recently
auctioned issues, the exchanges on which such securities trade will not continue
indefinitely to  introduce  options with  new  expirations to  replace  expiring
options  on  particular  issues.  Instead,  the  expirations  introduced  at the
commencement of options  trading on a  particular issue will  be allowed to  run
their  course, with the possible addition of a limited number of new expirations
as the original ones  expire. Options trading  on each issue  of bonds or  notes
will  thus be phased  out as new options  are listed on  more recent issues, and
options representing  a  full  range  of  expirations  will  not  ordinarily  be
available for every issue on which options are traded.
 
    OPTIONS ON TREASURY BILLS.  Because a deliverable Treasury bill changes from
week to week, writers of Treasury bill calls cannot provide in advance for their
potential   exercise  settlement  obligations  by   acquiring  and  holding  the
underlying security. However,  if the  Fund holds  a long  position in  Treasury
bills with a principal amount of the securities deliverable upon exercise of the
option,  the position may be  hedged from a risk standpoint  by the writing of a
call option. For so long as the  call option is outstanding, the Fund will  hold
the Treasury bills in a segregated account with its Custodian, so that they will
be treated as being covered.
 
    OPTIONS  ON GNMA CERTIFICATES.  Currently,  options on GNMA Certificates are
only traded  over-the-counter. Since  the remaining  principal balance  of  GNMA
Certificates  declines each month as a result of mortgage payments, the Fund, as
a writer of  a GNMA call  holding GNMA  Certificates as "cover"  to satisfy  its
delivery   obligation  in  the  event  of  exercise,  may  find  that  the  GNMA
Certificates it holds no  longer have a  sufficient remaining principal  balance
for  this purpose.  Should this  occur, the  Fund will  purchase additional GNMA
Certificates from the same pool (if obtainable) or replacement GNMA Certificates
in the cash market in  order to maintain its cover.  A GNMA Certificate held  by
the Fund to cover an option position in any but the nearest expiration month may
cease  to represent cover for the  option in the event of  a decline in the GNMA
coupon rate at which new pools are  originated under the FHA/VA loan ceiling  in
effect  at any given time, as such  decline may increase the prepayments made on
other mortgage pools. If this should occur, the Fund will no longer be  covered,
and  the Fund will either  enter into a closing  purchase transaction or replace
such Certificate with a Certificate which represents cover. When the Fund closes
out its position or replaces such  Certificate, it may realize an  unanticipated
loss and incur transaction costs.
 
    OPTIONS  ON FOREIGN CURRENCIES.  The Fund  may purchase and write options on
foreign currencies  for purposes  similar to  those involved  with investing  in
forward  foreign currency exchange  contracts. For example,  in order to protect
against  declines  in  the  dollar  value  of  portfolio  securities  which  are
denominated  in a  foreign currency,  the Fund  may purchase  put options  on an
amount of such foreign currency equivalent to the current value of the portfolio
securities involved. As a result, the Fund would be enabled to sell the  foreign
currency  for a fixed  amount of U.S.  dollars, thereby "locking  in" the dollar
value of the portfolio securities (less the amount of the premiums paid for  the
options).  Conversely, the Fund may purchase  call options on foreign currencies
in which securities it  anticipates purchasing are denominated  to secure a  set
U.S. dollar price for such securities and protect against a decline in the value
of  the U.S. dollar  against such foreign  currency. The Fund  may also purchase
call and put options to close out written option positions.
 
    The Fund may also write call options on foreign currency to protect  against
potential  declines in its portfolio securities which are denominated in foreign
currencies. If the  U.S. dollar  value of the  portfolio securities  falls as  a
result  of a decline in the exchange  rate between the foreign currency in which
it is denominated and  the U.S. dollar,  then a loss to  the Fund occasioned  by
such  value decline would be ameliorated by receipt of the premium on the option
sold. At the same time,  however, the Fund gives up  the benefit of any rise  in
value  of  the relevant  portfolio securities  above the  exercise price  of the
option and, in fact, only receives a  benefit from the writing of the option  to
the extent that the value of the
 
                                       16
<PAGE>
portfolio securities falls below the price of the premium received. A put option
on  a foreign currency would be written by the Fund for the same reason it would
purchase a call option, namely, to hedge against an increase in the U.S.  dollar
value  of a  foreign security which  the Fund anticipates  purchasing. Here, the
receipt of the premium would offset, to  the extent of the size of the  premium,
any  increased cost to  the Fund resulting  from an increase  in the U.S. dollar
value of the  foreign security.  However, the Fund  could not  benefit from  any
decline  in the cost of the foreign security  which is greater than the price of
the premium received. The Fund may also write options to close out long put  and
call option positions.
 
    The  markets in foreign  currency options are relatively  new and the Fund's
ability to establish and close out positions  on such options is subject to  the
maintenance of a liquid secondary market. Although the Fund will not purchase or
write  such options unless  and until, in the  Investment Manager's opinion, the
market for  them  has  developed  sufficiently  to  ensure  that  the  risks  in
connection  with such options are not greater  than the risks in connection with
the underlying  currency, there  can be  no assurance  that a  liquid  secondary
market  will exist for  a particular option  at any specific  time. In addition,
options on  foreign  currencies are  affected  by  all of  those  factors  which
influence foreign exchange rates and investments generally.
 
    The  value  of a  foreign  currency option  depends  upon the  value  of the
underlying currency relative to the U.S. dollar.  As a result, the price of  the
option  position may vary with changes in the value of either or both currencies
and have  no  relationship to  the  investment  merits of  a  foreign  security,
including  foreign securities held  in a "hedged"  investment portfolio. Because
foreign  currency  transactions  occurring  in  the  interbank  market   involve
substantially  larger amounts  than those  that may  be involved  in the  use of
foreign currency options, investors may be disadvantaged by having to deal in an
odd lot market (generally  consisting of transactions of  less than $1  million)
for the underlying foreign currencies at prices that are less favorable than for
round lots.
 
    There  is  no  systematic reporting  of  last sale  information  for foreign
currencies or  any  regulatory  requirement that  quotations  available  through
dealers  or other market sources be firm or revised on a timely basis. Quotation
information available is generally representative of very large transactions  in
the  interbank market and  thus may not  reflect relatively smaller transactions
(i.e., less than $1  million) where rates may  be less favorable. The  interbank
market in foreign currencies is a global, around-the-clock market. To the extent
that  the U.S. options markets  are closed while the  markets for the underlying
currencies remain open, significant price and  rate movements may take place  in
the underlying markets that are not reflected in the options market.
 
    OTC  OPTIONS.  Exchange-listed  options are issued by  the OCC which assures
that all transactions  in such options  are properly executed.  OTC options  are
purchased from or sold (written) to dealers or financial institutions which have
entered  into direct agreements with the  Fund. With OTC options, such variables
as expiration date, exercise price and  premium will be agreed upon between  the
Fund  and the  transacting dealer, without  the intermediation of  a third party
such as the OCC. If the transacting dealer fails to make or take delivery of the
securities underlying an option it has written, in accordance with the terms  of
that  option, the Fund would lose the premium paid for the option as well as any
anticipated benefit of the transaction.
 
    COVERED CALL WRITING.  As stated in the Prospectus, the Fund is permitted to
write covered call options on portfolio  securities and the currencies in  which
they are denominated, without limit, in order to aid in achieving its investment
objectives.  Generally, a call option is "covered"  if the Fund owns, or has the
right to acquire, without additional cash consideration (or for additional  cash
consideration  held for the Fund  by its Custodian in  a segregated account) the
underlying security (currency) subject to the option except that in the case  of
call options on U.S. Treasury Bills, the Fund might own U.S. Treasury Bills of a
different  series from  those underlying the  call option, but  with a principal
amount and value  corresponding to  the exercise price  and a  maturity date  no
later  than that of the security (currency) deliverable under the call option. A
call option is also covered if the Fund holds a call on the same security as the
underlying security (currency) of the  written option, where the exercise  price
of the call used for coverage is equal to or less than the exercise price of the
call written or greater than the exercise
 
                                       17
<PAGE>
price  of the call written if the mark to market difference is maintained by the
Fund in cash, U.S.  Government securities or  other liquid portfolio  securities
which the Fund holds in a segregated account maintained with its Custodian.
 
    The  Fund  will receive  from the  purchaser, in  return for  a call  it has
written, a "premium"; i.e., the price  of the option. Receipt of these  premiums
may  better enable  the Fund to  earn a higher  level of current  income than it
would earn from holding the underlying securities (currencies) alone.  Moreover,
the premium received will offset a portion of the potential loss incurred by the
Fund  if the securities  (currencies) underlying the  option are ultimately sold
(exchanged) by the  Fund at  a loss. The  premium received  will fluctuate  with
varying  economic  market  conditions.  If the  market  value  of  the portfolio
securities (or the  currencies in which  they are denominated)  upon which  call
options  have been written increases, the Fund  may receive a lower total return
from the portion of  its portfolio upon  which calls have  been written than  it
would have had such calls not been written.
 
    As regards listed options and certain OTC options, during the option period,
the  Fund  may be  required, at  any  time, to  deliver the  underlying security
(currency) against payment  of the exercise  price on any  calls it has  written
(exercise  of  certain  listed  and  OTC  options  may  be  limited  to specific
expiration dates).  This obligation  is terminated  upon the  expiration of  the
option period or at such earlier time when the writer effects a closing purchase
transaction.  A closing  purchase transaction  is accomplished  by purchasing an
option of the same  series as the option  previously written. However, once  the
Fund  has been assigned an exercise notice, the  Fund will be unable to effect a
closing purchase transaction.
 
    Closing purchase transactions are ordinarily effected to realize a profit on
an outstanding call option,  to prevent an  underlying security (currency)  from
being  called, to permit the sale of  an underlying security (or the exchange of
the underlying currency) or to enable the  Fund to write another call option  on
the  underlying security  (currency) with either  a different  exercise price or
expiration date or both. The Fund may realize a net gain or loss from a  closing
purchase  transaction depending upon whether the  amount of the premium received
on the  call option  is more  or less  than the  cost of  effecting the  closing
purchase transaction. Any loss incurred in a closing purchase transaction may be
wholly or partially offset by unrealized appreciation in the market value of the
underlying  security  (currency). Conversely,  a gain  resulting from  a closing
purchase transaction  could be  offset in  whole or  in part  or exceeded  by  a
decline in the market value of the underlying security (currency).
 
    If a call option expires unexercised, the Fund realizes a gain in the amount
of the premium on the option less the commission paid. Such a gain, however, may
be  offset  by  depreciation in  the  market  value of  the  underlying security
(currency) during the  option period. If  a call option  is exercised, the  Fund
realizes  a gain  or loss  from the sale  of the  underlying security (currency)
equal to the difference  between the purchase price  of the underlying  security
(currency)  and the  proceeds of  the sale of  the security  (currency) plus the
premium received for the option less the commission paid.
 
    Options written by  the Fund will  normally have expiration  dates of up  to
eighteen  months from the date written. The  exercise price of a call option may
be below, equal to or above the current market value of the underlying  security
at the time the option is written. See "Risks of Options Transactions," below.
 
    COVERED  PUT WRITING.  As stated in the Prospectus, as a writer of a covered
put option, 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,  at the purchaser's election  (certain listed and OTC
put options written by the Fund will  be exercisable by the purchaser only on  a
specific  date). A put is  "covered" if, at all times,  the Fund maintains, in a
segregated account maintained on its behalf at the Fund's Custodian, cash,  U.S.
Government securities or other liquid portfolio securities in an amount equal to
at  least  the exercise  price of  the option,  at all  times during  the option
period. Similarly, a  short put position  could be  covered by the  Fund by  its
purchase  of a  put option  on the  same security  (currency) as  the underlying
security of the written option, where the exercise price of the purchased option
is equal to or more than the exercise price of the put written or less than  the
exercise  price  of  the put  written  if  the marked  to  market  difference is
maintained by  the Fund  in cash,  U.S. Government  securities or  other  liquid
portfolio  securities which the Fund holds in a segregated account maintained at
 
                                       18
<PAGE>
its Custodian. In writing  puts, the Fund  assumes the risk  of loss should  the
market  value of the  underlying security (currency)  decline below the exercise
price of the option (any loss being  decreased by the receipt of the premium  on
the  option written). In the  case of listed options,  during the option period,
the Fund may be  required, at any  time, to make payment  of the exercise  price
against  delivery of  the underlying security  (currency). The  operation of and
limitations on covered put options in other respects are substantially identical
to those of call options.
 
    The Fund  will write  put options  for three  purposes: (1)  to receive  the
income  derived from  the premiums paid  by purchasers; (2)  when the Investment
Manager wishes  to purchase  the  security (or  a  security denominated  in  the
currency  underlying the option) 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; and (3)  to close out a  long
put  option position. The potential  gain on a covered  put option is limited to
the  premium  received  on  the  option  (less  the  commissions  paid  on   the
transaction)  while  the  potential  loss  equals  the  differences  between the
exercise price of  the option  and the current  market price  of the  underlying
securities  (currencies)  when  the  put is  exercised,  offset  by  the premium
received (less the commissions paid on the transaction).
 
    PURCHASING CALL AND PUT OPTIONS.  As stated in the Prospectus, the Fund  may
purchase  listed and OTC call  and put options in amounts  equalling up to 5% of
its total assets. The Fund  may purchase a call option  in order to close out  a
covered  call position (see "Covered Call Writing" above), to protect against an
increase in price of a security it  anticipates purchasing or, in the case of  a
call  option on foreign currency, to hedge against an adverse exchange rate move
of the currency in which the  security it anticipates purchasing is  denominated
vis-a-vis  the currency in which the exercise price is denominated. If the price
of the security (or value of the currency in which it is denominated) underlying
the option fails to  rise above the  exercise price by  an amount exceeding  the
price  of the option premium, the Fund will  sustain a loss equal to some or all
of the  premium price.  The purchase  of the  call option  to effect  a  closing
transaction on a call written over-the-counter may be a listed or an OTC option.
In  either  case, the  call purchased  is likely  to be  on the  same securities
(currencies) and  have  the same  terms  as  the written  option.  If  purchased
over-the-counter,  the option  would generally  be acquired  from the  dealer or
financial institution which purchased the call written by the Fund.
 
    The Fund may purchase put options on securities (currencies) which it  holds
in  its portfolio only to  protect itself against a decline  in the value of the
security. If the value of the underlying security (currency) were to fall  below
the  exercise price of the  put purchased in an  amount greater than the premium
paid for the option, the Fund would incur no additional loss. The Fund may  also
purchase  put options to close out written  put positions in a manner similar to
call options closing purchase transactions. In addition, the Fund may sell a put
option which it  has previously purchased  prior to the  sale of the  securities
(currencies)  underlying such option. Such a sale  would result in a net gain or
loss depending on whether the amount received  on the sale is more or less  than
the  premium and other transaction  costs paid on the  put option which is sold.
And such gain or loss  could be offset in  whole or in part  by a change in  the
market value of the underlying security (currency). If a put option purchased by
the Fund expired without being sold or exercised, the premium would be lost.
 
    RISKS  OF OPTIONS TRANSACTIONS.  During  the option period, the covered call
writer has, in return for  the premium on the  option, given up the  opportunity
for capital appreciation above the exercise price should the market price of the
underlying security (or the value of its denominated currency) increase, but has
retained  the risk of loss  should the price of  the underlying security (or the
value of its denominated currency) decline. The secured put writer also  retains
the  risk of  loss should the  market value  of the underlying  security (or the
value of  its denominated  currency) decline  below the  exercise price  of  the
option  less the premium received on the sale  of the option. In both cases, the
writer has no  control over  the time  when it may  be required  to fulfill  its
obligation  as a  writer of the  option. Once  an option writer  has received an
exercise notice, it  cannot effect a  closing purchase transaction  in order  to
terminate  its  obligation under  the  option and  must  deliver or  receive the
underlying securities at the exercise price.
 
                                       19
<PAGE>
    Prior to exercise or expiration, an  option position can only be  terminated
by  entering into  a closing  purchase or  sale transaction.  If a  covered call
option writer is unable to effect a closing purchase transaction or to  purchase
an  offsetting  OTC option,  it cannot  sell the  underlying security  until the
option expires or the  option is exercised. Accordingly,  a covered call  option
writer  may not be able to  sell an underlying security at  a time when it might
otherwise be advantageous to do so. A secured put option writer who is unable to
effect a closing purchase  transaction or to purchase  an offsetting OTC  option
would continue to bear the risk of decline in the market price of the underlying
security  until the option expires  or is exercised. In  addition, a secured put
writer would be unable to utilize the amount held in cash or U.S. Government  or
other  liquid  portfolio securities  as security  for the  put option  for other
investment purposes until the exercise or expiration of the option.
 
    As discussed in the Prospectus, the Fund's ability to close out its position
as a writer of an option is  dependent upon the existence of a liquid  secondary
market on Option Exchanges. There is no assurance that such a market will exist,
particularly  in the case of OTC options, as such options will generally only be
closed out by entering into a  closing purchase transaction with the  purchasing
dealer.  However, the Fund  may be able  to purchase an  offsetting option which
does not close out its  position as a writer but  constitutes an asset of  equal
value  to the obligation  under the option written.  If the Fund  is not able to
either enter  into a  closing  purchase transaction  or purchase  an  offsetting
position, it will be required to maintain the securities subject to the call, or
the  collateral underlying the put, even though  it might not be advantageous to
do so,  until a  closing  transaction can  be entered  into  (or the  option  is
exercised or expires).
 
    Among  the possible reasons for the absence  of a liquid secondary market on
an Exchange  are: (i)  insufficient trading  interest in  certain options;  (ii)
restrictions  on  transactions  imposed  by an  Exchange;  (iii)  trading halts,
suspensions or other restrictions imposed with respect to particular classes  or
series  of options  or underlying  securities; (iv)  interruption of  the normal
operations on an Exchange;  (v) inadequacy of the  facilities of an Exchange  or
the  Options Clearing Corporation  ("OCC") to handle  current trading volume; or
(vi) a decision by one or more  Exchanges to discontinue the trading of  options
(or  a particular  class or  series of  options), in  which event  the secondary
market on that Exchange (or in that  class or series of options) would cease  to
exist, although outstanding options on that Exchange that had been issued by the
OCC  as  a result  of trades  on that  Exchange would  generally continue  to be
excercisable in accordance with their terms.
 
    In the event of the bankruptcy of a broker through which the Fund engages in
transactions in  options, the  Fund  could experience  delays and/or  losses  in
liquidating  open positions purchased or sold  through the broker and/or incur a
loss of all or part  of its margin deposits with  the broker. Similarly, in  the
event  of the bankruptcy of  the writer of an OTC  option purchased by the Fund,
the Fund could  experience a loss  of all or  part of the  value of the  option.
Transactions  are  entered  into by  the  Fund  only with  brokers  or financial
institutions deemed creditworthy by the Investment Manager.
 
    Each of  the Exchanges  has established  limitations governing  the  maximum
number  of  call or  put  options on  the  same underlying  security  or futures
contract (whether or  not covered) which  may be written  by a single  investor,
whether  acting  alone or  in concert  with others  (regardless of  whether such
options are written on the same or different Exchanges or are held or written on
one or more accounts or through one or more brokers). An Exchange may order  the
liquidation  of positions found  to be in  violation of these  limits and it may
impose other sanctions or restrictions.  These position limits may restrict  the
number of listed options which the Fund may write.
 
    The  hours of trading for options may  not conform to the hours during which
the underlying securities  are traded.  To the  extent that  the option  markets
close  before the markets  for the underlying  securities, significant price and
rate movements can take place in the underlying markets that cannot be reflected
in the option markets.
 
    The extent to which the Fund  may enter into transactions involving  options
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" in the Prospectus).
 
                                       20
<PAGE>
    FUTURES  CONTRACTS.  As stated in the  Prospectus, the Fund may purchase and
sell interest rate, currency, and index futures contracts ("futures contracts"),
that are traded  on U.S.  and foreign  commodity exchanges,  on such  underlying
securities as U.S. Treasury bonds, notes and bills and/or any foreign government
fixed-income   security  ("interest   rate"  futures),   on  various  currencies
("currency futures")  and  on such  indexes  of U.S.  and  foreign  fixed-income
securities as may exist or come into being, such as the Moody's Investment-Grade
Corporate Bond Index ("index" futures).
 
    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) against changes in  prevailing interest rates and to
alter the Fund's asset allocation in fixed-income securities. If the  Investment
Manager  anticipates that interest rates may  rise and, concomitantly, the price
of fixed-income  securities  fall,  or  wishes  to  decrease  the  Fund's  asset
allocation  in  fixed-income  securities, the  Fund  may sell  an  interest rate
futures contract or a bond index  futures contract. If declining interest  rates
are anticipated or if the Investment Manager wishes to increase the Fund's asset
allocation  of fixed-income securities,  the Fund may  purchase an interest rate
futures contract to protect  against a potential increase  in the price of  U.S.
Government  securities the  Fund intends to  purchase. Subsequently, appropriate
fixed-income securities may be purchased by  the Fund in an orderly fashion;  as
securities are purchased, corresponding futures positions would be terminated by
offsetting sales of contracts.
 
    Although  most interest rate  futures contracts call  for actual delivery or
acceptance of  securities,  the contracts  usually  are closed  out  before  the
settlement  date without  the making or  taking of delivery.  A futures contract
sale is  closed  out by  effecting  a futures  contract  purchase for  the  same
aggregate  amount  of the  specific  type of  security  (currency) and  the same
delivery date. If  the sale  price exceeds  the offsetting  purchase price,  the
seller  would be paid the difference and would realize a gain. If the offsetting
purchase price exceeds the sale price,  the seller would pay the difference  and
would  realize a loss. Similarly,  a futures contract purchase  is closed out by
effecting a futures contract sale for the same aggregate amount of the  specific
type  of security (currency) and the same  delivery date. If the offsetting sale
price exceeds the purchase price, the purchaser would realize a gain, whereas if
the purchase  price  exceeds the  offsetting  sale price,  the  purchaser  would
realize a loss. There is no assurance that the Fund will be able to enter into a
closing transaction.
 
   
    INTEREST RATE FUTURES CONTRACTS.  When the Fund enters into an interest rate
futures contract, it is initially required to deposit with the Fund's Custodian,
in a segregated account in the name of the broker performing the transaction, an
"initial margin" of cash or U.S. Government securities or other liquid portfolio
securities  equal to  approximately 3%  of the  contract amount.  Initial margin
requirements are established by the  Exchanges on which futures contracts  trade
and  may, from time to  time, change. In addition,  brokers may establish margin
deposit requirements in excess of those required by the Exchanges.
    
 
   
    Initial  margin  in  futures  transactions  is  different  from  margin   in
securities transactions in that initial margin does not involve the borrowing of
funds  by a brokers' client but is, rather,  a good faith deposit on the futures
contract which will be returned to the  Fund upon the proper termination of  the
futures  contract. The margin deposits  made are marked to  market daily and the
Fund may be  required to  make subsequent deposits  of cash  or U.S.  Government
securities  or other liquid portfolio securities called "variation margin," with
the Fund's  futures contract  clearing  broker, which  are reflective  of  price
fluctuations in the futures contract. Currently, interest rate futures contracts
can  be purchased on debt securities such as U.S. Treasury Bills and Bonds, U.S.
Treasury Notes with Maturities between 6 1/2 and 10 years, GNMA Certificates and
Bank Certificates of Deposit.
    
 
    CURRENCY FUTURES.    Generally, foreign  currency  futures provide  for  the
delivery  of a specified amount of a given currency, on the exercise date, for a
set exercise  price  denominated in  U.S.  dollars or  other  currency.  Foreign
currency  futures contracts would be entered into  for the same reason and under
the same  circumstances  as forward  foreign  currency exchange  contracts.  The
Investment  Manager  will assess  such factors  as  cost spreads,  liquidity and
transaction costs in determining whether to utilize
 
                                       21
<PAGE>
futures contracts or forward contracts its in foreign currency transactions  and
hedging  strategy. Currently,  currency futures  exist for,  among other foreign
currencies, the  Japanese  yen, West  German  marks, Canadian  dollars,  British
pound, Swiss franc and European currency unit.
 
    Purchasers  and sellers of foreign currency futures contracts are subject to
the same risks that  apply to the  buying and selling  of futures generally.  In
addition, there are risks associated with foreign currency futures contracts and
their  use  as a  hedging device  similar  to those  associated with  options on
foreign currencies described  above. Further, settlement  of a foreign  currency
futures  contract must occur within the country issuing the underlying currency.
Thus, the Fund must accept or  make delivery of the underlying foreign  currency
in  accordance with any U.S. or foreign restrictions or regulation regarding the
maintenance of  foreign  banking  arrangements  by U.S.  residents  and  may  be
required  to pay any fees, taxes or  charges associated with such delivery which
are assessed in the issuing country.
 
    Options on foreign currency futures contracts may involve certain additional
risks. Trading options on foreign currency futures contracts is relatively  new.
The  ability to establish and close out  positions on such options is subject to
the maintenance of a liquid secondary market. To reduce this risk, the Fund will
not purchase or write options on  foreign currency futures contracts unless  and
until,  in the  Investment Manager's  opinion, the  market for  such options has
developed sufficiently that the  risks in connection with  such options are  not
greater than the risks in connection with transactions in the underlying foreign
currency futures contracts.
 
    INDEX  FUTURES  CONTRACTS.   As discussed  in the  Prospectus, the  Fund may
invest in index  futures contracts. An  index futures contract  sale creates  an
obligation  by the Fund, as seller, to  deliver cash at a specified future time.
An index futures contract  purchase would create an  obligation by the Fund,  as
purchaser,  to  take  delivery  of  cash at  a  specified  future  time. Futures
contracts on indexes  do not require  the physical delivery  of securities,  but
provide  for  a final  cash  settlement on  the  expiration date  which reflects
accumulated profits and losses credited or debited to each party's account.
 
    The Fund  is  required to  maintain  margin deposits  with  brokerage  firms
through  which it effects  index futures contracts  in a manner  similar to that
described above  for interest  rate futures  contracts. Currently,  the  initial
margin  requirements  range from  3% to  10%  of the  contract amount  for index
futures. In  addition, due  to current  industry practice,  daily variations  in
gains  and losses on open contracts are required  to be reflected in cash in the
form of variation margin payments. The  Fund may be required to make  additional
margin payments during the term of the contract.
 
    At  any time prior to expiration of the futures contract, the Fund may elect
to close  the position  by taking  an opposite  position which  will operate  to
terminate  the Fund's position in the futures contract. A final determination of
variation margin is  then made, additional  cash is  required to be  paid by  or
released to the Fund and the Fund realizes a loss or gain.
 
    OPTIONS  ON FUTURES CONTRACTS.  The Fund may purchase and write call and put
options on futures  contracts which  are traded on  an Exchange  and enter  into
closing  transactions  with respect  to such  options  to terminate  an existing
position. An option  on a  futures contract gives  the purchaser  the right  (in
return for the premium paid), to assume a position in a futures contract (a long
position if the option is a call and a short position if the option is a put) at
a  specified exercise  price at  any time  during the  term of  the option. Upon
exercise of the option, the  delivery of the futures  position by the writer  of
the  option  to the  holder  of the  option is  accompanied  by delivery  of the
accumulated balance in the writer's futures margin account, which represents the
amount by which the market price of the futures contract at the time of exercise
exceeds, in the  case of a  call, or is  less than, in  the case of  a put,  the
exercise price of the option on the futures contract.
 
    The  Fund will purchase and write options on futures contracts for identical
purposes to  those  set forth  above  for the  purchase  of a  futures  contract
(purchase  of a call option or  sale of a put option)  and the sale of a futures
contract (purchase of a put option or sale of a call option), or to close out  a
long  or short  position in futures  contracts. If, for  example, the Investment
Manager wished  to  protect  against  an increase  in  interest  rates  and  the
resulting  negative  impact  on  the  value of  a  portion  of  its fixed-income
 
                                       22
<PAGE>
portfolio, it might write  a call option on  an interest rate futures  contract,
the  underlying security of  which correlates with the  portion of the portfolio
the Investment Manager seeks to hedge.  Any premiums received in the writing  of
options  on futures contracts  may, of course,  augment the total  return of the
Fund and thereby  provide a further  hedge against losses  resulting from  price
declines in portions of the Fund's portfolio.
 
    The writer of an option on a futures contract is required to deposit initial
and  variation margin  pursuant to requirements  similar to  those applicable to
futures contracts. Premiums received from the writing of an option on a  futures
contract are included in initial margin deposits.
 
    LIMITATIONS  ON FUTURES CONTRACTS AND OPTIONS ON  FUTURES.  The Fund may not
enter into futures contracts or purchase related options thereon if, immediately
thereafter, the amount committed to margin plus the amount paid for premiums for
unexpired options on  futures contracts exceeds  5% of the  value of the  Fund's
total  assets, after taking into account  unrealized gains and unrealized losses
on such contracts it has entered into, provided, however, that in the case of an
option that is in-the-money (the exercise price of the call (put) option is less
(more) than  the  market  price of  the  underlying  security) at  the  time  of
purchase,  the  in-the-money  amount  may be  excluded  in  calculating  the 5%.
However, there is no overall limitation  on the percentage of the Fund's  assets
which  may be subject to  a hedge position. In  addition, in accordance with the
regulations of the Commodity Futures Trading Commission ("CFTC") under which the
Fund is exempted from  registration as a commodity  pool operator, the Fund  may
only  enter into futures contracts and options on futures contracts transactions
for purposes of hedging a part or all of its portfolio. If the CFTC changes  its
regulations  so that  the Fund  would be permitted  to write  options on futures
contracts for purposes other  than hedging the  Fund's investments without  CFTC
registration,  the  Fund may  engage in  such  transactions for  those purposes.
Except as described above, there are no other limitations on the use of  futures
and options thereon by the Fund.
 
    RISKS  OF TRANSACTIONS IN FUTURES CONTRACTS  AND RELATED OPTIONS.  As stated
in the Prospectus, the Fund may sell  a futures contract to protect against  the
decline  in  the  value  of  securities  (or  the  currency  in  which  they are
denominated) held by the Fund. However,  it is possible that the futures  market
may  advance and  the value  of securities  (or the  currency in  which they are
denominated) held in the  portfolio of the Fund  may decline. If this  occurred,
the  Fund would lose money on the futures contract and also experience a decline
in value of its portfolio securities. However, while this could occur for a very
brief period or to  a very small  degree, over time the  value of a  diversified
portfolio will tend to move in the same direction as the futures contracts.
 
    If  the Fund purchases a  futures contract to hedge  against the increase in
value of  securities it  intends  to buy  (or the  currency  in which  they  are
denominated),  and the value of such securities (currencies) decreases, then the
Fund may determine not to invest in the securities as planned and will realize a
loss on the futures contract that is not  offset by a reduction in the price  of
the securities.
 
    If the Fund has sold a call option in a futures contract, it will cover this
position  by holding, in a segregated account maintained at its Custodian, cash,
U.S. Government securities or other  liquid portfolio securities equal in  value
(when  added to any initial or variation  margin on deposit) to the market value
of the securities (currencies) underlying  the futures contract or the  exercise
price  of  the  option.  Such a  position  may  also be  covered  by  owning the
securities (currencies) underlying the  futures contract, or  by holding a  call
option  permitting the Fund to  purchase the same contract  at a price no higher
than the price at which the short position was established.
 
    In addition, if the Fund holds a long position in a futures contract or  has
sold  a put  option on a  futures contract,  it will hold  cash, U.S. Government
securities or other liquid portfolio securities  equal to the purchase price  of
the contract or the exercise price of the put option (less the amount of initial
or  variation margin on deposit) in a segregated account maintained for the Fund
by its  Custodian. Alternatively,  the Fund  could cover  its long  position  by
purchasing  a put option on the same  futures contract with an exercise price as
high or higher than the price of the contract held by the Fund.
 
                                       23
<PAGE>
    Exchanges limit the amount by which the price of a futures contract may move
on any day. If the price moves equal the daily limit on successive days, then it
may prove impossible to liquidate a futures position until the daily limit moves
have ceased. In the event of adverse price movements, the Fund would continue to
be  required to  make daily  cash payments of  variation margin  on open futures
positions. In such situations, if the Fund has insufficient cash, it may have to
sell portfolio securities to meet daily variation margin requirements at a  time
when  it may be disadvantageous to do so.  In addition, the Fund may be required
to take or  make delivery of  the instruments underlying  interest rate  futures
contracts  it holds at a time when it is disadvantageous to do so. The inability
to close out options and futures positions could also have an adverse impact  on
the Fund's ability to effectively hedge its portfolio.
 
    Futures contracts and options thereon which are purchased or sold on foreign
commodities  exchanges  may  have  greater  price  volatility  than  their  U.S.
counterparts. Furthermore, foreign commodities  exchanges may be less  regulated
and under less governmental scrutiny than U.S. exchanges. Brokerage commissions,
clearing  costs and other transaction costs  may be higher on foreign exchanges.
Greater margin requirements may limit the  Fund's ability to enter into  certain
commodity  transactions on foreign exchanges. Moreover, differences in clearance
and delivery  requirements  on foreign  exchanges  may occasion  delays  in  the
settlement of the Fund's transactions effected on foreign exchanges.
 
    In the event of the bankruptcy of a broker through which the Fund engages in
transactions  in futures  or options thereon,  the Fund  could experience delays
and/or losses in liquidating open positions purchased or sold through the broker
and/or incur a  loss of  all or  part of its  margin deposits  with the  broker.
Similarly,  in  the event  of  the bankruptcy  of the  writer  of an  OTC option
purchased by the Fund, the  Fund could experience a loss  of all or part of  the
value of the option. Transactions are entered into by the Fund only with brokers
or financial institutions deemed creditworthy by the Investment Manager.
 
    While the futures contracts and options transactions to be engaged in by the
Fund  for  the  purpose  of  hedging the  Fund's  portfolio  securities  are not
speculative in nature, there are risks inherent in the use of such  instruments.
One  such risk which may arise in employing futures contracts to protect against
the price volatility of portfolio securities  (and the currencies in which  they
are denominated) is that the prices of securities and indexes subject to futures
contracts  (and thereby the  futures contract prices)  may correlate imperfectly
with the behavior of the cash prices of the Fund's portfolio securities (and the
currencies in which they are denominated).  Another such risk is that prices  of
interest  rate futures  contracts may  not move  in tandem  with the  changes in
prevailing interest rates against  which the Fund seeks  a hedge. A  correlation
may  also  be distorted  by the  fact that  the futures  market is  dominated by
short-term traders seeking to profit from  the difference between a contract  or
security  price objective and their cost of borrowed funds. Such distortions are
generally minor and would diminish as the contract approached maturity.
 
    As stated  in  the Prospectus,  there  may exist  an  imperfect  correlation
between  the price movements of futures contracts  purchased by the Fund and the
movements in the prices of the securities (currencies) which are the subject  of
the  hedge.  If participants  in the  futures  market elect  to close  out their
contracts through  offsetting  transactions  rather  than  meet  margin  deposit
requirements, distortions in the normal relationship between the debt securities
or  currency markets and  futures markets could  result. Price distortions could
also result if investors in  futures contracts opt to  make or take delivery  of
underlying  securities rather  than engage  in closing  transactions due  to the
resultant reduction in the liquidity of the futures market. In addition, due  to
the  fact that, from the point of  view of speculators, the deposit requirements
in the futures  markets are less  onerous than margin  requirements in the  cash
market, increased participation by speculators in the futures market could cause
temporary  price distortions. Due to the possibility of price distortions in the
futures market and because of the imperfect correlation between movements in the
prices of securities and movements in the prices of futures contracts, a correct
forecast of interest rate trends by the Investment Manager may still not  result
in a successful hedging transaction.
 
                                       24
<PAGE>
    As  stated in the Prospectus, there is  no assurance that a liquid secondary
market will exist for  futures contracts and related  options in which the  Fund
may  invest. In the event a liquid market does not exist, it may not be possible
to close out a futures  position, and in the  event of adverse price  movements,
the  Fund would continue to be required to make daily cash payments of variation
margin. In addition,  limitations imposed by  an exchange or  board of trade  on
which  futures contracts are traded may compel  or prevent the Fund from closing
out a contract which may result in  reduced gain or increased loss to the  Fund.
The absence of a liquid market in futures contracts might cause the Fund to make
or take delivery of the underlying securities (currencies) at a time when it may
be disadvantageous to do so.
 
    The  extent to which the Fund  may enter into transactions involving futures
contracts and options  thereon 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" in  the
Prospectus).
 
    Compared  to the purchase or sale of futures contracts, the purchase of call
or put options  on futures contracts  involves less potential  risk to the  Fund
because  the maximum amount  at risk is  the premium paid  for the options (plus
transaction costs). However, there may be  circumstances when the purchase of  a
call  or put option  on a futures  contract would result  in a loss  to the Fund
notwithstanding that the purchase or sale of a futures contract would not result
in a loss, as in the  instance where there is no  movement in the prices of  the
futures contract or underlying securities (currencies).
 
REPURCHASE AGREEMENTS
 
    When  cash may be available for  only a few days, it  may be invested by the
Fund in repurchase agreements until such time as it may otherwise be invested or
used for payments  of obligations  of the Fund.  A repurchase  agreement may  be
viewed  as a type  of secured lending  by the Fund  which typically involves the
acquisition by  the  Fund of  government  securities from  a  selling  financial
institution  such as a bank, savings  and loan association or broker-dealer. The
agreement provides that the Fund will sell back to the institution, and that the
institution  will  repurchase,  the  underlying  security  ("collateral")  at  a
specified  price and at a fixed time in  the future, usually not more than seven
days from  the  date  of  purchase.  The collateral  will  be  maintained  in  a
segregated account and will be marked to market daily to determine that the full
value  of the collateral, as specified in the agreement, does not decrease below
the repurchase price plus accrued interest. If such decrease occurs,  additional
collateral  will be  requested from  the counterparty and  will be  added to the
account to maintain  full collateralization.  In the event  the original  seller
defaults  on its  obligations to  repurchase, as a  result of  its bankruptcy or
otherwise, the Fund will seek to sell the collateral, which action could involve
costs or delays. In such case, the  Fund's ability to dispose of the  collateral
to recover its investment may be restricted or delayed.
 
    The  Fund will accrue interest from the  institution until the time when the
repurchase is to  occur. Although  such date  is deemed by  the Fund  to be  the
maturity date of a repurchase agreement, the maturities of securities subject to
repurchase agreements are not subject to any limits and may exceed one year.
 
    While repurchase agreements involve certain risks not associated with direct
investments in debt securities, the Fund follows procedures designed to minimize
such   risks.  Repurchase  agreements  will   be  transacted  only  with  large,
well-capitalized and  well-established  financial institutions  whose  financial
condition  will be continuously  monitored by the  Investment Manager subject to
procedures established by  the Trustees.  The procedures also  require that  the
collateral  underlying the agreement  be specified. The  Fund does not presently
intend to enter into repurchase  agreements so that more  than 5% of the  Fund's
net assets are subject to such agreements.
 
REVERSE REPURCHASE AGREEMENTS
 
    The  Fund may also use reverse repurchase agreements for purposes of meeting
redemptions or as part of its investment strategy. Reverse repurchase agreements
involve sales by the Fund of portfolio assets concurrently with an agreement  by
the  Fund  to repurchase  the same  assets at  a  later date  at a  fixed price.
Generally, the effect of such a transaction is that the Fund can recover all  or
most of the cash
 
                                       25
<PAGE>
invested  in the  portfolio securities involved  during the term  of the reverse
repurchase agreement,  while  it  will  be able  to  keep  the  interest  income
associated   with  those  portfolio  securities.   Such  transactions  are  only
advantageous if  the  interest  cost  to the  Fund  of  the  reverse  repurchase
transaction is less than the cost of obtaining the cash otherwise. Opportunities
to  achieve this advantage may not always  be available, and the Fund intends to
use the reverse repurchase technique only when it will be to its advantage to do
so. The Fund  will establish  a segregated account  with its  custodian bank  in
which  it  will maintain  cash  or cash  equivalents  or other  liquid portfolio
securities (i.e. U.S. Government securities)  equal in value to its  obligations
in  respect of reverse repurchase  agreements. Reverse repurchase agreements are
considered borrowings by the  Fund and, in  accordance with legal  requirements,
the  Fund will maintain an  asset coverage (including the  proceeds) of at least
300% with  respect  to all  reverse  repurchase agreements.  Reverse  repurchase
agreements may not exceed 10% of the Fund's total assets.
 
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS
 
    As discussed in the Prospectus, from time to time, in the ordinary course of
business,  the Fund may purchase securities on a when-issued or delayed delivery
basis and may purchase  or sell securities on  a forward commitment basis.  When
such  transactions  are  negotiated, the  price  is  fixed at  the  time  of the
commitment, but delivery and payment  can take place a  month or more after  the
date  of  the commitment.  The  securities so  purchased  are subject  to market
fluctuation and no interest accrues to  the purchaser during this period.  While
the  Fund will  only purchase securities  on a when-issued,  delayed delivery or
forward commitment basis  with the  intention of acquiring  the securities,  the
Fund  may  sell the  securities  before the  settlement  date, if  it  is deemed
advisable. At the time the Fund makes the commitment to purchase securities on a
when-issued or delayed delivery basis, the Fund will record the transaction  and
thereafter  reflect the value, each day, of such security in determining the net
asset value of the Fund.  At the time of delivery  of the securities, the  value
may  be more  or less than  the purchase price.  The Fund will  also establish a
segregated account with the Fund's custodian bank in which it will  continuously
maintain cash or U.S. Government securities or other liquid portfolio securities
equal  in  value  to  commitments  for  such  when-issued  or  delayed  delivery
securities; subject to  this requirement,  the Fund may  purchase securities  on
such  basis without limit.  An increase in  the percentage of  the Fund's assets
committed to the  purchase of securities  on a when-issued  or delayed  delivery
basis  may increase the volatility of the Fund's net asset value. The Investment
Manager and the  Trustees do  not believe  that the  Fund's net  asset value  or
income will be adversely affected by its purchase of securities on such basis.
 
WHEN, AS AND IF ISSUED SECURITIES
 
    As discussed in the Prospectus, the Fund may purchase securities on a "when,
as  and if issued" basis  under which the issuance  of the security depends upon
the occurrence of a  subsequent event, such as  approval of a merger,  corporate
reorganization,  leveraged buyout or debt  restructuring. The commitment for the
purchase of any such  security will not  be recognized in  the portfolio of  the
Fund  until the Investment  Manager determines that issuance  of the security is
probable. At such time, the Fund will record the transaction and, in determining
its net asset value, will reflect the value of the security daily. At such time,
the Fund will  also establish a  segregated account with  its custodian bank  in
which  it will continuously maintain cash or U.S. Government securities or other
liquid portfolio securities equal  in value to  recognized commitments for  such
securities.  Settlement of the trade will occur within five business days of the
occurrence of  the subsequent  event. The  value of  the Fund's  commitments  to
purchase  the  securities of  any one  issuer,  together with  the value  of all
securities of such issuer owned by the Fund,  may not exceed 5% of the value  of
the  Fund's total  assets at  the time the  initial commitment  to purchase such
securities is made  (see "Investment  Restrictions"). Subject  to the  foregoing
restrictions,  the Fund may purchase securities  on such basis without limit. An
increase in the  percentage of the  Fund's assets committed  to the purchase  of
securities  on a "when, as  and if issued" basis  may increase the volatility of
its net asset value. The Investment Manager and the Trustees do not believe that
the net asset value of  the Fund will be adversely  affected by its purchase  of
securities on such basis. The Fund
 
                                       26
<PAGE>
may  also sell securities on a "when, as  and if issued" basis provided that the
issuance of  the  security  will  result  automatically  from  the  exchange  or
conversion of a security owned by the Fund at the time of the sale.
 
LENDING OF PORTFOLIO SECURITIES
 
    Consistent  with applicable regulatory  requirements, the Fund  may lend its
portfolio securities  to  brokers,  dealers and  other  financial  institutions,
provided that such loans are callable at any time by the Fund (subject to notice
provisions described below), and are at all times secured by cash or appropriate
high-grade  debt  obligations,  which  are maintained  in  a  segregated account
pursuant to applicable  regulations and that  are at least  equal to the  market
value,  determined daily, of the loaned  securities. The advantage of such loans
is that the Fund continues to receive the income on the loaned securities  while
at  the same time earning interest on  the cash amounts deposited as collateral,
which will be  invested in short-term  obligations. The Fund  will not lend  its
portfolio  securities if such loans are not permitted by the laws or regulations
of any state in which its shares are  qualified for sale and will not lend  more
than  25% of  the value of  its total  assets. A loan  may be  terminated by the
borrower on one  business days' notice,  or by  the Fund on  two business  days'
notice.  If the borrower fails to deliver  the loaned securities within two days
after receipt  of notice,  the Fund  could  use the  collateral to  replace  the
securities  while holding the borrower liable for any excess of replacement cost
over collateral. As with any extensions of  credit, there are risks of delay  in
recovery  and in  some cases even  loss of  rights in the  collateral should the
borrower of the securities fail  financially. However, these loans of  portfolio
securities  will only  be made to  firms deemed  by the Fund's  management to be
creditworthy and when the income which  can be earned from such loans  justifies
the  attendant risks. Upon termination of the  loan, the borrower is required to
return the securities to the Fund. Any  gain or loss in the market price  during
the  loan period would inure to the Fund. The creditworthiness of firms to which
the Fund lends its portfolio securities will be monitored on an ongoing basis by
the Investment  Manager  pursuant to  procedures  adopted and  reviewed,  on  an
ongoing basis, by the Board of Trustees of the Fund.
 
    When  voting or consent rights which accompany loaned securities pass to the
borrower, the Fund will follow the  policy of calling the loaned securities,  to
be  delivered within one day after notice, to permit the exercise of such rights
if the matters involved would have a material effect on the Fund's investment in
such loaned securities.  The Fund will  pay reasonable finder's,  administrative
and custodial fees in connection with a loan of its securities. The Fund has not
to date lent any of its portfolio securities.
 
PORTFOLIO TRADING
 
    It  is anticipated that  the Fund's portfolio turnover  rate will not exceed
300% in any one year. A 300% turnover rate would occur, for example, if 300%  of
the  securities held  in the  Fund's portfolio  (excluding all  securities whose
maturities at acquisition were one year  or less) were sold and replaced  within
one year.
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    In addition to the investment restrictions enumerated in the Prospectus, the
investment   restrictions  listed  below  have  been  adopted  by  the  Fund  as
fundamental  policies,  except  as  otherwise   indicated.  Under  the  Act,   a
fundamental  policy may  not be changed  without the  vote of a  majority of the
outstanding voting  securities  of the  Fund,  as defined  in  the Act.  Such  a
majority  is defined as the lesser of (a) 67% or more of the shares present at a
meeting of shareholders, if the holders of 50% of the outstanding shares of  the
Fund are present or represented by proxy or (b) more than 50% of the outstanding
shares of the Fund.
 
    The Fund may not:
 
        1.   Invest  in securities  of any  issuer if,  to the  knowledge of the
           Fund, any officer or trustee of  the Fund or any officer or  director
    of  the  Investment Manager  owns more  than  1/2 of  1% of  the outstanding
    securities of such issuer, and such officers, trustees and directors who own
    more than 1/2 of  1% own in  the aggregate more than  5% of the  outstanding
    securities of such issuers.
 
                                       27
<PAGE>
        2.   Purchase  or sell  real estate  or interests  therein, although the
           Fund may purchase securities of  issuers which engage in real  estate
    operations and securities secured by real estate or interests therein.
 
        3.   Purchase  oil,  gas  or  other mineral  leases,  rights  or royalty
           contracts or  exploration or  development programs,  except that  the
    Fund  may invest in the securities of companies which operate, invest in, or
    sponsor such programs.
 
        4.   Purchase  securities  of  other  investment  companies,  except  in
           connection   with   a   merger,   consolidation,   reorganization  or
    acquisition of assets. However, the Fund may  invest up to 10% of the  value
    of  its total assets in the  securities of foreign investment companies, but
    only under  circumstances  where  purchase  of  the  securities  of  foreign
    investment  companies  would  secure  entry to  national  markets  which are
    otherwise not  open to  the Fund  for investment  or where  the security  is
    issued  by a foreign bank which is  deemed to be an investment company under
    U.S. securities laws and/or regulations.
 
        The Fund anticipates that it  will incur any indirect expenses  incurred
    through investment in a foreign investment company, such as the payment of a
    management  fee.  Furthermore, it  should be  noted that  foreign investment
    companies are not subject to the U.S. securities laws and may be subject  to
    fewer or less stringent regulations than U.S. investment companies.
 
        5.   Borrow  money (except  insofar as  the Fund  may be  deemed to have
           borrowed by entrance  into a  reverse repurchase agreement  up to  an
    amount  not exceeding 10% of the Fund's  total assets), except that the Fund
    may borrow from a  bank for temporary or  emergency purposes in amounts  not
    exceeding  5% (taken  at the lower  of cost  or current value)  of its total
    assets (not including the amount borrowed).
 
        6.   Pledge its assets or  assign or otherwise  encumber them except  to
           secure  borrowings  effected  within  the  limitations  set  forth in
    restriction  (5).   For  the   purpose  of   this  restriction,   collateral
    arrangements   with  respect  to  the  writing  of  options  and  collateral
    arrangements with respect to initial or variation margin for futures are not
    deemed to be pledges of assets.
 
        7.
             Issue senior securities as defined in the Act except insofar as the
           Fund may be deemed to have issued a senior security by reason of  (a)
    entering into any repurchase or reverse repurchase agreement; (b) purchasing
    any securities on a when-issued or delayed delivery basis; (c) purchasing or
    selling  futures contracts,  forward foreign exchange  contracts or options;
    (d) borrowing money in accordance with restrictions described above; or  (e)
    lending portfolio securities.
 
        8.   Make  loans of money or securities,  except: (a) by the purchase of
           publicly distributed debt  obligations in which  the Fund may  invest
    consistent with its investment objectives and policies; (b) by investment in
    repurchase or reverse repurchase agreements; or (c) by lending its portfolio
    securities.
 
        9.   Make short sales of securities.
 
       10.   Purchase  securities on margin, except for such short-term loans as
           are necessary for the clearance of portfolio securities. The  deposit
    or  payment by the  Fund of initial  or variation margin  in connection with
    futures contracts or related options thereon is not considered the  purchase
    of a security on margin.
 
       11.   Engage  in the  underwriting of  securities, except  insofar as the
           Fund may be deemed an underwriter under the Securities Act of 1933 in
    disposing of a portfolio security.
 
       12.   Invest for the purpose of  exercising control or management of  any
           other issuer.
 
    If a percentage restriction is adhered to at the time of investment, a later
increase  or  decrease  in  percentage  resulting from  a  change  in  values of
portfolio securities or amount of total or  net assets will not be considered  a
violation of any of the foregoing restrictions.
 
                                       28
<PAGE>
PORTFOLIO TRANSACTIONS AND BROKERAGE
- --------------------------------------------------------------------------------
 
    Subject  to the general supervision of the Board of Trustees, the Investment
Manager is responsible for  decisions to buy and  sell securities for the  Fund,
the  selection  of  brokers and  dealers  to  effect the  transactions,  and the
negotiation of brokerage commissions, if any. Purchases and sales of  securities
on  a stock exchange  are effected through  brokers who charge  a commission for
their services. The Fund expects that  the primary market for the securities  in
which it intends to invest will generally be the over-the-counter market. In the
over-the-counter  market, securities are generally traded  on a "net" basis with
dealers acting as principal for their own accounts without a stated  commission,
although  the price of the security usually includes a profit to the dealer. The
Fund expects  that  securities  will  be  purchased  at  times  in  underwritten
offerings  where the  price includes a  fixed amount  of compensation, generally
referred to as  the underwriter's  concession or discount.  Options and  futures
transactions  will usually be effected through a broker and a commission will be
charged.  On  occasion,  the  Fund  may  also  purchase  certain  money   market
instruments  directly from an issuer, in  which case no commissions or discounts
are paid. During the  fiscal years ended  October 31, 1994,  1995 and 1996,  the
Fund  paid a total  of $90,206, $63,973 and  $53,726, respectively, in brokerage
commissions.
 
    The Investment Manager currently serves as investment manager to a number of
clients, including other  investment companies,  and may  in the  future act  as
investment  manager or adviser to  others. It is the  practice of the Investment
Manager to cause purchase and sale  transactions to be allocated among the  Fund
and  others whose  assets it manages  in such  manner as it  deems equitable. In
making such  allocations  among the  Fund  and other  client  accounts,  various
factors  may be considered, including  the respective investment objectives, the
relative size of portfolio  holdings of the same  or comparable securities,  the
availability  of  cash  for  investment,  the  size  of  investment  commitments
generally held and  the opinions  of the  persons responsible  for managing  the
portfolios of the Fund and other client accounts. In the case of certain initial
and  secondary public offerings,  the Investment Manager  may utilize a pro-rata
allocation process based on the size of  the Dean Witter Funds involved and  the
number of shares available from the public offering.
 
    The  policy of the Fund regarding purchases  and sales of securities for its
portfolio is that  primary consideration  will be  given to  obtaining the  most
favorable  prices and efficient executions of transactions. Consistent with this
policy, when  securities transactions  are  effected on  a stock  exchange,  the
Fund's  policy is  to pay commissions  which are considered  fair and reasonable
without necessarily determining that the lowest possible commissions are paid in
all circumstances.  The Fund  believes that  a requirement  always to  seek  the
lowest  possible commission cost could impede effective portfolio management and
preclude the Fund and  the Investment Manager from  obtaining a high quality  of
brokerage  and research services. In seeking  to determine the reasonableness of
brokerage commissions paid  in any  transaction, the  Investment Manager  relies
upon  its experience  and knowledge  regarding commissions  generally charged by
various brokers and  on its judgment  in evaluating the  brokerage and  research
services received from the broker effecting the transaction. Such determinations
are necessarily subjective and imprecise, as in most cases an exact dollar value
for those services is not ascertainable.
 
    The  Fund  anticipates that  certain of  its transactions  involving foreign
securities will be effected on  securities exchanges. Fixed commissions on  such
transactions  are  generally  higher  than  negotiated  commissions  on domestic
transactions. There is also generally less government supervision and regulation
of foreign securities exchanges and brokers than in the United States.
 
    In seeking to implement the Fund's policies, the Investment Manager  effects
transactions  with those brokers and dealers who the Investment Manager believes
provide the  most  favorable  prices  and are  capable  of  providing  efficient
executions.  If the Investment  Manager believes such  prices and executions are
obtainable from more  than one broker  or dealer, it  may give consideration  to
placing  portfolio transactions with those brokers  and dealers who also furnish
research and other services to the Fund or the Investment Manager. Such services
may include,  but  are  not limited  to,  any  one or  more  of  the  following:
information  as  to  the  availability  of  securities  for  purchase  or  sale;
statistical or factual
 
                                       29
<PAGE>
information or opinions pertaining to investment; wire services; and  appraisals
or evaluations of portfolio securities. During the fiscal year ended October 31,
1996,  the Fund did not direct the  payment of any brokerage commissions because
of research services provided.
 
    The information and services received by the Investment Manager from brokers
and dealers may be  of benefit to  the Investment Manager  in the management  of
accounts  of some of its other clients and may not in all cases benefit the Fund
directly. While  the receipt  of  such information  and  services is  useful  in
varying  degrees and would  generally reduce the amount  of research or services
otherwise performed by the Investment  Manager and thereby reduce its  expenses,
it  is of  indeterminable value  and the management  fee paid  to the Investment
Manager is not reduced by  any amount that may be  attributable to the value  of
such services.
 
    Pursuant to an order of the Securities and Exchange Commission, the Fund may
effect  principal transactions in certain money market instruments with DWR. The
Fund will limit  its transactions  with DWR  to U.S.  Government and  Government
Agency  Securities, Bank  Money Instruments  (i.e., Certificates  of Deposit and
Bankers' Acceptances) and Commercial Paper.  Such transactions will be  effected
with  DWR only when the  price available from DWR  is better than that available
from other dealers.
 
    Consistent with  the  policy  described  above,  brokerage  transactions  in
securities listed on exchanges or admitted to unlisted trading privileges may be
effected  through DWR. In order for DWR to effect any portfolio transactions for
the Fund, the commissions,  fees or other remuneration  received by DWR must  be
reasonable and fair compared to the commissions, fees or other remuneration paid
to  other brokers in  connection with comparable  transactions involving similar
securities being purchased or sold on an exchange during a comparable period  of
time.  This standard would  allow DWR to  receive no more  than the remuneration
which would  be  expected  to  be  received  by  an  unaffiliated  broker  in  a
commensurate  arm's-length transaction.  Furthermore, the Trustees  of the Fund,
including a majority  of the Trustees  who are not  "interested" persons of  the
Fund,  as  defined in  the  Act, have  adopted  procedures which  are reasonably
designed to provide that any commissions, fees or other remuneration paid to DWR
are consistent  with  the foregoing  standard.  During the  fiscal  years  ended
October  31,  1994,  1995 and  1996,  the  Fund did  not  effect  any securities
transactions with or through DWR.
 
THE DISTRIBUTOR
- --------------------------------------------------------------------------------
 
    As discussed in the Prospectus, shares  of the Fund are distributed by  Dean
Witter Distributors Inc. (the "Distributor"). The Distributor has entered into a
selected  dealer agreement  with DWR, which  through its  own sales organization
sells shares of the Fund. In  addition, the Distributor may enter into  selected
dealer  agreements  with  other  selected  broker-dealers.  The  Distributor,  a
Delaware corporation, is a wholly-owned subsidiary of DWDC. The Trustees of  the
Fund, including a majority of the Trustees who are not, and were not at the time
they  voted,  interested  persons  of  the Fund,  as  defined  in  the  Act (the
"Independent Trustees"), approved, at  their meeting held  on October 30,  1992,
the  current  Distribution  Agreement appointing  the  Distributor  as exclusive
distributor of  the Fund's  shares and  providing for  the Distributor  to  bear
distribution  expenses not borne by the Fund. The current Distribution Agreement
is substantively identical to the Fund's previous distribution agreement in  all
material  respects, except  for the  dates of  effectiveness. By  its terms, the
Distribution Agreement  had an  initial term  ending April  30, 1994,  and  will
remain in effect from year to year thereafter if approved by the Board. At their
meeting  held on April 17, 1996, the  Trustees, including all of the Independent
Trustees, approved the  continuation of the  Distribution Agreement until  April
30, 1997.
 
    The  Distributor bears all expenses incurred in providing services under the
Distribution Agreement. Such  expenses include  the payment  of commissions  for
sales of the Fund's shares and incentive compensation to account executives. The
Distributor  also pays certain  expenses in connection  with the distribution of
the Fund's shares, including the  costs of preparing, printing and  distributing
advertising or promotional materials, and the costs of printing and distributing
prospectuses  and supplements thereto  used in connection  with the offering and
sale of the  Fund's shares.  The Fund bears  the costs  of initial  typesetting,
printing   and  distribution   of  prospectuses   and  supplements   thereto  to
shareholders. The
 
                                       30
<PAGE>
Fund also bears the costs of registering  the Fund and its shares under  federal
and state securities laws. The Fund and the Distributor have agreed to indemnify
each   other  against  certain  liabilities,  including  liabilities  under  the
Securities Act  of  1933, as  amended.  Under the  Distribution  Agreement,  the
Distributor  uses its best efforts in rendering services to the Fund, but in the
absence  of  willful  misfeasance,  bad  faith,  gross  negligence  or  reckless
disregard  of its obligations, the Distributor is  not liable to the Fund or any
of its shareholders for any error of judgment  or mistake of law or for any  act
or omission or for any losses sustained by the Fund or its shareholders.
 
PLAN OF DISTRIBUTION
 
    The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under the
Act  (the "Plan") pursuant  to which the Fund  pays the Distributor compensation
accrued daily and payable monthly at the annual rate of 0.85% 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 upon which such charge has been waived; or  (b)
the  Fund's average daily net assets. The Distributor also receives the proceeds
of contingent deferred sales charges  imposed on certain redemptions of  shares,
which  are  separate and  apart from  payments  made pursuant  to the  Plan (see
"Redemptions and  Repurchases  --  Contingent  Deferred  Sales  Charge"  in  the
Prospectus).   The  Distributor   has  informed   the  Fund   that  it  received
approximately $637,000,  $338,000  and  $109,685,  respectively,  in  contingent
deferred  sales charges for  the fiscal years  ended October 31,  1994, 1995 and
1996.
 
    The Distributor has informed the Fund that a portion of the fees payable  by
the  Fund each year  pursuant to the Plan  equal to 0.25%  of the Fund's average
daily net assets is  characterized as a  "service fee" under  the Rules of  Fair
Practice  of the National Association of  Securities Dealers, Inc. (of which the
Distributor is a member). Such portion of the fee is a payment made for personal
service and/or the maintenance of shareholder accounts. The remaining portion of
the Plan fees  payable by  the Fund is  characterized as  an "asset-based  sales
charge" as such is defined by the aforementioned Rules of Fair Practice.
 
    The  Plan was adopted by a majority vote of the Board of Trustees, including
all of the Trustees of the Fund who are not "interested persons" of the Fund (as
defined in the Act) and who have no direct or indirect financial interest in the
operation of the Plan  (the "Independent 12b-1 Trustees"),  cast in person at  a
meeting  called for the purpose  of voting on the Plan,  on January 31, 1989, by
DWR as the  then sole shareholder  of the Fund  on February 1,  1989 and by  the
shareholders  holding  a majority,  as defined  in the  Act, of  the outstanding
voting securities of the Fund at a  Special Meeting of Shareholders of the  Fund
held on June 26, 1990.
 
    At  their  meeting held  on  October 30,  1992,  the Trustees  of  the Fund,
including all of the Independent 12b-1 Trustees, approved certain amendments  to
the  Plan which took  effect in January,  1993 and were  designed to reflect the
fact that  upon  the  reorganization  described  above  the  share  distribution
activities  theretofore  performed  for the  Fund  by  DWR were  assumed  by the
Distributor and DWR's sales activities are  now being performed pursuant to  the
terms  of  a selected  dealer  agreement between  the  Distributor and  DWR. The
amendments provide that payments under the Plan will be made to the  Distributor
rather  than to DWR as before the amendment, and that the Distributor in turn is
authorized  to  make  payments  to   DWR,  its  affiliates  or  other   selected
broker-dealers  (or  direct  that  the Fund  pay  such  entities  directly). The
Distributor is also authorized  to retain part of  such fee as compensation  for
its  own distribution-related expenses. At their meeting held on April 28, 1993,
the Trustees, including a majority  of the Independent 12b-1 Trustees,  approved
certain  technical amendments to the Plan  in connection with amendments adopted
by the National  Association of Securities  Dealers, Inc. to  its Rules of  Fair
Practice.  At their meeting held on October  26, 1995, the Trustees of the Fund,
including all of the  Independent 12b-1 Trustees, approved  an amendment to  the
Plan  to  permit payments  to be  made under  the Plan  with respect  to certain
distribution expenses incurred  in connection with  the distribution of  shares,
including  personal services  to shareholders with  respect to  holdings of such
shares, of an  investment company whose  assets are  acquired by the  Fund in  a
tax-free reorganization.
 
                                       31
<PAGE>
    Under  the Plan  and as  required by  Rule 12b-1,  the Trustees  receive and
review promptly after the end of each calendar quarter a written report provided
by the Distributor of the amounts expended by the Distributor under the Plan and
the purpose for  which such  expenditures were  made. The  Fund accrued  amounts
payable  to the Distributor under the Plan, during the fiscal year ended October
31, 1996, of $1,058,190.  This amount is  equal to 0.85%  of the Fund's  average
daily  net assets for the fiscal year  and was calculated pursuant to clause (b)
of the compensation formula under the Plan.  This amount is treated by the  Fund
as an expense in the year it is accrued.
 
    The  Plan was adopted  in order to  permit the implementation  of the Fund's
method of distribution. Under  this distribution method shares  of the Fund  are
sold  without a sales load  being deducted at the time  of purchase, so that the
full amount of an investor's purchase payment will be invested in shares without
any deduction for sales charges. Shares of the Fund are subject in most cases to
a contingent  deferred sales  charge, payable  to the  Distributor, if  redeemed
during  the  six  years  after  their  purchase.  DWR  compensates  its  account
executives by paying them, from its own  funds, commissions for the sale of  the
Fund's shares, currently a gross sales credit of up to 4% of the amount sold and
an  annual residual  commission of  up to .20  of 1%  of the  current value (not
including reinvested dividends or distributions)  of the amount sold. The  gross
sales  credit is a charge which reflects  commissions paid by DWR to its account
executives and  DWR's Fund-associated  distribution-related expenses,  including
sales  compensation, and  overhead and other  branch office distribution-related
expenses including  (a)  the  expenses  of operating  DWR's  branch  offices  in
connection with the sale of Fund shares, including lease costs, the salaries and
employee  benefits  of operations  and sales  support personnel,  utility costs,
communications costs and the costs of stationery and supplies, (b) the costs  of
client  sales seminars, (c) travel expenses of mutual fund sales coordinators to
promote the  sale of  Fund shares  and  (d) other  expenses relating  to  branch
promotion of Fund sales. The distribution fee that the Distributor receives from
the Fund under the Plan, in effect, offsets distribution expenses incurred under
the  Plan on  behalf of the  Fund and its  opportunity costs, such  as the gross
sales credit and an assumed interest charge thereon ("carrying charge"). In  the
Distributor's  reporting of the distribution expenses  to the Fund, such assumed
interest (computed at the "broker's call rate") has been calculated on the gross
sales credit as it is reduced by  amounts received by the Distributor under  the
Plan  and any contingent deferred sales charges received by the Distributor upon
redemption of shares  of the Fund.  No other  interest charge is  included as  a
distribution  expense in the Distributor's calculation of its distribution costs
for this  purpose.  The broker's  call  rate is  the  interest rate  charged  to
securities brokers on loans secured by exchange-listed securities.
 
    The  Fund paid 100% of the $1,058,190  accrued under the Plan for the fiscal
year ended October 31, 1996 to the Distributor. The Distributor and DWR estimate
that they have spent, pursuant  to the Plan, $34,958,755  on behalf of the  Fund
since  the inception of the Fund. It is  estimated that this amount was spent in
approximately the  following ways:  (i) 6.29%  ($2,198,826) --  advertising  and
promotional  expenses;  (ii) 0.55%  ($191,095) --  printing of  prospectuses for
distribution to other than current shareholders; and (iii) 93.16%  ($32,568,834)
- --  other expenses, including the gross sales credit and the carrying charge, of
which 14.21%  ($4,628,835)  represents carrying  charges,  33.35%  ($10,863,072)
represents  commission credits to DWR branch offices for payments of commissions
to account executives;  and 52.44% ($17,076,927)  represents overhead and  other
branch office distribution-related expenses.
 
    At  any given time, the  expenses of distributing shares  of the Fund may be
more or less than the total of (i) the payments made by the Fund pursuant to the
Plan and  (ii)  the  proceeds  of contingent  deferred  sales  charges  paid  by
investors  upon redemption of shares. The  Distributor has advised the Fund that
such excess amount, including  the carrying charge  designed to approximate  the
opportunity  costs incurred  by DWR which  arise from it  having advanced monies
without having received the amount of any  sales charges imposed at the time  of
sale  of the Fund's shares, totalled $8,308,200  as of October 31, 1996. Because
there is no requirement  under the Plan that  the Distributor be reimbursed  for
all  its expenses  or any requirement  that the  Plan be continued  from year to
year, this excess amount does not  constitute a liability of the Fund.  Although
there  is no legal obligation for the Fund to pay expenses 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
 
                                       32
<PAGE>
terminated, the Trustees will consider at that time the manner in which to treat
such expenses. Any cumulative expenses  incurred, but not yet recovered  through
future distribution fees or contingent deferred sales charges, may or may not be
recovered through future distribution fees or contingent deferred sales charges.
 
    No  interested person of the Fund nor any  Trustee of the Fund who is not an
interested person of the Fund, as defined  in the Act, has any direct  financial
interest in the operation of the Plan except to the extent that the Distributor,
InterCapital  or DWR or certain of their employees may be deemed to have such an
interest as a result  of benefits derived from  the successful operation of  the
Plan or as a result of receiving a portion of the amounts expended thereunder by
the Fund.
 
    Under  its terms, the  Plan had an  initial term ending  April 30, 1989, and
will remain in effect from year to year thereafter, provided such continuance is
approved annually by  a vote  of the Independent  12b-1 Trustees  in the  manner
described  above. Most recent continuance of the  Plan for one year, until April
30, 1997,  was approved  by  the Board  of Trustees  of  the Fund,  including  a
majority of the Independent 12b-1 Trustees, at a Board meeting held on April 17,
1996.  Prior to approving  continuation of the Plan,  the Trustees requested and
received from the Distributor and reviewed all the information which they deemed
necessary to arrive at an informed determination. In making their  determination
to  continue the Plan, the Trustees  considered: (1) the Fund's experience under
the Plan and  whether such experience  indicates that the  Plan is operating  as
anticipated;  (2) the benefits the Fund had obtained, was obtaining and would be
likely to obtain under  the Plan; and  (3) what services  had been provided  and
were  continuing to be provided under the Plan to the Fund and its shareholders.
Based upon  their  review, the  Trustees  of the  Fund,  including each  of  the
Independent 12b-1 Trustees, determined that continuation of the Plan would be in
the  best  interest  of the  Fund  and  would have  a  reasonable  likelihood of
continuing to benefit the Fund and its shareholders. In the Trustees'  quarterly
review  of the  Plan, they will  consider its continued  appropriateness and the
level of compensation provided therein.
 
    The Plan may not be  amended to increase materially  the amount to be  spent
for  the services described therein without  approval by the shareholders of the
Fund, and all  material amendments  to the  Plan must  also be  approved by  the
Trustees  in the manner described above. The Plan may be terminated at any time,
without payment of any penalty, by vote  of a majority of the Independent  12b-1
Trustees  or by a vote of a majority of the outstanding voting securities of the
Fund (as defined in the Act) on not more than thirty days' written notice to any
other party to  the Plan. So  long as the  Plan is in  effect, the election  and
nomination of Independent 12b-1 Trustees shall be committed to the discretion of
the Independent 12b-1 Trustees.
 
DETERMINATION OF NET ASSET VALUE
- --------------------------------------------------------------------------------
 
    As stated in the Prospectus, short-term securities with remaining maturities
of  sixty days  or less at  the time of  purchase are valued  at amortized cost,
unless the  Trustees determine  such  does not  reflect the  securities'  market
value,  in which  case these securities  will be  valued at their  fair value as
determined by the Trustees. Other short-term debt securities will be valued on a
mark-to-market basis until such time as they reach a remaining maturity of sixty
days, whereupon they will be valued at  amortized cost using their value on  the
61st  day unless  the Trustees determine  such does not  reflect the securities'
market value, in which case these securities will be valued at their fair  value
as  determined by  the Trustees.  Listed options are  valued at  the latest sale
price on the exchange on which they  are listed unless no sales of such  options
have taken place that day, in which case they will be valued at the mean between
their  latest bid  and asked  prices. Unlisted  options are  valued at  the mean
between their latest bid and asked prices. Futures are valued at the latest sale
price on  the commodities  exchange  on which  they  trade unless  the  Trustees
determine  such price does not reflect  their market value. All other securities
and other assets  are valued at  their fair  value as determined  in good  faith
under procedures established by and under the supervision of the Trustees.
 
    The  net asset value  per share of the  Fund is determined  once daily as of
4:00 p.m., New York time  (or, on days when the  New York Stock Exchange  closes
prior to 4:00 p.m., at such earlier time), on each
 
                                       33
<PAGE>
day  that  the New  York Stock  Exchange is  open. The  New York  Stock Exchange
currently observes the following holidays: New Year's Day; Presidents' Day; Good
Friday; Memorial  Day;  Independence  Day;  Labor  Day;  Thanksgiving  Day;  and
Christmas Day.
 
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
    Upon the purchase of shares of the Fund, a Shareholder Investment Account is
opened  for the investor on the books of  the Fund and maintained by Dean Witter
Trust Company (the "Transfer  Agent"). This is an  open account in which  shares
owned  by the investor are credited by the Transfer Agent in lieu of issuance of
a share certificate. If a share certificate is desired, it must be requested  in
writing  for each transaction. Certificates are  issued only for full shares and
may be  redeposited in  the account  at  any time.  There is  no charge  to  the
investor  for  issuance  of  a  certificate.  Whenever  a shareholder-instituted
transaction takes place in the  Shareholder Investment Account, the  shareholder
will  be mailed a confirmation  of the transaction from the  Fund or from DWR or
other selected broker-dealer.
 
    AUTOMATIC INVESTMENT  OF DIVIDENDS  AND  DISTRIBUTIONS.   As stated  in  the
Prospectus,   all  income   dividends  and   capital  gains   distributions  are
automatically paid  in  full and  fractional  shares  of the  Fund,  unless  the
shareholder  requests that they be paid in  cash. Each purchase of shares of the
Fund is made upon the condition that the Transfer Agent is thereby automatically
appointed as agent of  the investor to receive  all dividends and capital  gains
distributions  on shares owned by the investor. Such dividends and distributions
will be paid, at  the net asset value  per share, in shares  of the Fund (or  in
cash  if the shareholder so requests) as of  the close of business on the record
date. At any time  an investor may  request the Transfer  Agent, in writing,  to
have  subsequent dividends and/or capital gains distributions paid to him or her
in cash rather  than shares. To  assure sufficient time  to process the  change,
such  request should be  received by the  Transfer Agent at  least five business
days prior to the record  date of the dividend or  distribution. In the case  of
recently  purchased  shares for  which registration  instructions have  not been
received on the record date, cash payments will be made to DWR or other selected
broker-dealer, and will  be forwarded to  the shareholder, upon  the receipt  of
proper instructions.
 
    TARGETED   DIVIDENDS.SM    In  states   where  it  is  legally  permissible,
shareholders may also have all income dividends and capital gains  distributions
automatically invested in shares of an open-end Dean Witter Fund other than Dean
Witter  World Wide Income Trust. Such investment will be made as described above
for automatic investment in shares of the Fund, at the net asset value per share
of the selected Dean Witter Fund as of the close of business on the payment date
of the dividend or distribution and will begin to earn dividends, if any, in the
selected Dean Witter Fund the next business day. To participate in the  Targeted
Dividends  program,  shareholders should  contact  their DWR  or  other selected
broker-dealer account executive or the Transfer Agent. Shareholders of the  Fund
must  be shareholders  of the Dean  Witter Fund targeted  to receive investments
from dividends at the time they enter the Targeted Dividends program.  Investors
should  review the prospectus  of the Targeted Dean  Witter Fund before entering
the program.
 
    EASYINVEST.SM   Shareholders  may  subscribe  to  EasyInvest,  an  automatic
purchase  plan  which  provides  for  any  amount  from  $100  to  $5,000  to be
transferred automatically from a checking or savings account, on a semi-monthly,
monthly or quarterly basis,  to the Transfer Agent  for investment in shares  of
the Fund. Shares purchased through EasyInvest will be added to the shareholder's
existing  account at the  net asset value  calculated the same  business day the
transfer of  funds is  effected.  For further  information  or to  subscribe  to
EasyInvest,   shareholders   should  contact   their   DWR  or   other  selected
broker-dealer account executive or the Transfer Agent.
 
    INVESTMENT OF DIVIDENDS OR DISTRIBUTIONS RECEIVED IN CASH.  As discussed  in
the  Prospectus,  any shareholder  who receives  a  cash payment  representing a
dividend or distribution may invest such  dividend or distribution at net  asset
value,  without  the  imposition  of a  contingent  deferred  sales  charge upon
redemption, by returning the check or the proceeds to the Transfer Agent  within
30  days after the  payment date. If  the shareholder returns  the proceeds of a
dividend or distribution, such funds must be
 
                                       34
<PAGE>
accompanied by  a signed  statement indicating  that the  proceeds constitute  a
dividend or distribution to be invested. Such investment will be made at the net
asset  value per share next determined after receipt of the check or proceeds by
the Transfer Agent.
 
    SYSTEMATIC WITHDRAWAL PLAN.   As discussed in  the Prospectus, a  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.
 
    The  Transfer Agent acts  as agent for  the shareholder in  tendering to the
Fund for redemption sufficient full and fractional shares to provide the  amount
of  the periodic  withdrawal payment designated  in the  application. The shares
will be  redeemed at  their net  asset value  determined, at  the  shareholder's
option, on the tenth or twenty-fifth day (or next following business day) of the
relevant  month or quarter and normally a  check for the proceeds will be mailed
by the Transfer Agent  within five business days  after the date of  redemption.
The Withdrawal Plan may be terminated at any time by the Fund.
 
    Withdrawal  Plan payments should  not be considered  as dividends, yields or
income. If periodic withdrawal plan payments continuously exceed net  investment
income  and net  capital gains,  the shareholder's  original investment  will be
correspondingly reduced and ultimately exhausted.
 
    Each withdrawal constitutes  a redemption  of shares  and any  gain or  loss
realized  must  be  recognized for  federal  income tax  purposes.  Although the
shareholder may  make  additional  investments  of  $2,500  or  more  under  the
Withdrawal  Plan,  withdrawals made  concurrently  with purchases  of additional
shares may  be  inadvisable because  of  the contingent  deferred  sales  charge
applicable  to the redemption of shares purchased during the preceding six years
(see "Redemptions and Repurchases -- Contingent Deferred Sales Charge").
 
    Any shareholder who wishes to have  payments under the Withdrawal Plan  made
to  a third party or sent to an address other than the one listed on the account
must send complete written instructions to  the Transfer Agent to enroll in  the
Withdrawal  Plan.  The  shareholder's  signature on  such  instructions  must be
guaranteed  by  an   eligible  guarantor  acceptable   to  the  Transfer   Agent
(shareholders  should  contact  the Transfer  Agent  for a  determination  as to
whether a particular institution is  such an eligible guarantor). A  shareholder
may,  at any time, change the amount and interval of withdrawal payments through
his or her Account Executive or  by written notification to the Transfer  Agent.
In  addition, the  party and/or the  address to  which checks are  mailed may be
changed by written notification to the Transfer Agent, with signature guarantees
required in the manner described above.  The shareholder may also terminate  the
Withdrawal  Plan at  any time by  written notice  to the Transfer  Agent. In the
event  of  such  termination,  the  account  will  be  continued  as  a  regular
shareholder  investment account. The shareholder may  also redeem all or part of
the  shares  held  in  the   Withdrawal  Plan  account  (see  "Redemptions   and
Repurchases" in the Prospectus) at any time.
 
    DIRECT  INVESTMENTS THROUGH TRANSFER AGENT.  As discussed in the Prospectus,
a shareholder may  make additional  investments in Fund  shares at  any time  by
sending  a check in any amount, not less than $100, payable to Dean Witter World
Wide Income Trust, directly to the  Fund's Transfer Agent. Such amounts will  be
applied  to the purchase  of Fund shares at  the net asset  value per share next
computed after receipt of the check  or purchase payment by the Transfer  Agent.
The shares so purchased will be credited to the investor's account.
 
EXCHANGE PRIVILEGE
 
    As discussed in the Prospectus, the Fund makes available to its shareholders
an Exchange Privilege whereby shareholders of the Fund may exchange their shares
for shares of other Dean Witter Funds
 
                                       35
<PAGE>
sold  with a contingent deferred sales charge  ("CDSC funds"), and for shares of
Dean Witter Short-Term Bond  Fund, Dean Witter  Short-Term U.S. Treasury  Trust,
Dean Witter Limited Term Municipal Trust, Dean Witter Balanced Growth Fund, Dean
Witter  Balanced Income 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 referred to  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 will  be  treated  for  federal  income tax  purposes  the  same  as  a
repurchase  or  redemption of  shares, on  which the  shareholder may  realize a
capital gain or loss.
 
    Any new account  established through  the Exchange Privilege  will have  the
same registration and cash dividend or dividend reinvestment plan as the present
account,  unless  the  Transfer  Agent  receives  written  notification  to  the
contrary. For  telephone  exchanges,  the exact  registration  of  the  existing
account and the account number must be provided.
 
    Any  shares  held  in  certificate  form cannot  be  exchanged  but  must be
forwarded to the  Transfer Agent  and deposited into  the shareholder's  account
before  being eligible for exchange. (Certificates  mailed in for deposit should
not be endorsed.)
 
    As described  below, and  in  the Prospectus  under the  captions  "Exchange
Privilege"  and "Contingent Deferred Sales  Charge", a contingent deferred sales
charge ("CDSC")  may be  imposed upon  a redemption,  depending on  a number  of
factors,  including the number of years from the time of purchase until the time
of redemption or  exchange ("holding period").  When shares of  the Fund or  any
other  CDSC fund are exchanged  for shares of an  Exchange Fund, the exchange is
executed at no charge to the shareholder, without the imposition of the CDSC  at
the  time of the exchange. During the  period of time the shareholder remains in
the Exchange  Fund (calculated  from the  last day  of the  month in  which  the
Exchange  Fund shares were acquired), the holding period or "year since purchase
payment made" is frozen. When shares are redeemed out of an Exchange Fund,  they
will  be subject  to a CDSC  which would  be based upon  the period  of time the
shareholder held shares in a CDSC fund. However, in the case of shares exchanged
for shares of an Exchange Fund on or after April 23, 1990, upon a redemption  of
shares which results in a CDSC being imposed, a credit (not to exceed the amount
of  the  CDSC) will  be given  in an  amount  equal to  the Exchange  Fund 12b-1
distribution fees incurred on or after that date which are attributable to those
shares. Shareholders acquiring shares of an Exchange Fund or a money market fund
pursuant to this exchange privilege may  exchange those shares back into a  CDSC
fund  from the Exchange Fund,  with no CDSC being  imposed on such exchange. The
holding period previously frozen when shares were first exchanged for shares  of
the Exchange Fund resumes on the last day of the month in which shares of a CDSC
fund  are reacquired. A CDSC is imposed  only upon an ultimate redemption, based
upon the time (calculated as described above) the shareholder was invested in  a
CDSC fund.
 
    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.
 
    When  shares initially purchased in a CDSC  fund are exchanged for shares of
another CDSC fund, or for  shares of an Exchange Fund,  the date of purchase  of
the shares of the fund exchanged into, for purposes of the CDSC upon redemption,
will  be the  last day  of the month  in which  the shares  being exchanged were
originally purchased.  In allocating  the purchase  payments between  funds  for
purposes of the CDSC, the amount which represents the current net asset value of
shares  at the time of the exchange which  were (i) purchased more than three or
six years (depending upon the CDSC  schedule applicable to the shares) prior  to
the  exchange,  (ii) originally  acquired through  reinvestment of  dividends or
distributions of the  Fund or  another Dean Witter  Fund and  (iii) acquired  in
exchange for shares of front-end sales charge funds, or for shares of other Dean
Witter Funds for which shares of front-end sales
 
                                       36
<PAGE>
charge funds have been exchanged (all such shares called "Free Shares"), will be
exchanged  first.  Shares  of  Dean Witter  Strategist  Fund  acquired  prior to
November 8, 1989, shares  of Dean Witter American  Value Fund acquired prior  to
April  30, 1984, and shares  of Dean Witter Dividend  Growth Securities Inc. and
Dean Witter Natural Resource Development Securities Inc. acquired prior to  July
2, 1984, are also considered Free Shares and will be the first Free Shares to be
exchanged. After an exchange, all dividends earned on shares in an Exchange Fund
will  be considered Free  Shares. If the  exchanged amount exceeds  the value of
such Free Shares, an  exchange is made, on  a block-by-block basis, of  non-Free
Shares  held for  the longest  period of  time (except  that if  shares held for
identical periods of time  but subject to different  CDSC schedules are held  in
the  same Exchange Privilege account, the shares  of that block that are subject
to a lower CDSC rate  will be exchanged prior to  the shares of that block  that
are  subject to  a higher CDSC  rate). Shares  equal to any  appreciation in the
value of  non-Free Shares  exchanged will  be treated  as Free  Shares, and  the
amount  of the purchase payments  for the non-Free Shares  of the fund exchanged
into will be equal to  the lesser of (a) the  purchase payments for, or (b)  the
current  net  asset value  of,  the exchanged  non-Free  Shares. If  an exchange
between funds would result  in exchange of  only part of  a particular block  of
non-Free shares, then shares equal to any appreciation in the value of the block
(up  to the amount of the exchange) will be treated as Free Shares and exchanged
first, and the purchase payment for that  block will be allocated on a pro  rata
basis  between the non-Free Shares of that block to be retained and the non-Free
Shares  to  be  exchanged.  The   prorated  amount  of  such  purchase   payment
attributable to the retained non-Free Shares will remain as the purchase payment
for  such shares, and the amount of  purchase payment for the exchanged non-Free
Shares will be equal to  the lesser of (a) the  prorated amount of the  purchase
payment  for, or (b)  the current net  asset value of,  those exchanged non-Free
Shares. Based upon the procedures described in the Prospectus under the  caption
"Contingent Deferred Sales Charge", any applicable CDSC will be imposed upon the
ultimate redemption of shares of any fund, regardless of the number of exchanges
since those shares were originally purchased.
 
    With  respect to  the redemption  or repurchase of  shares of  the Fund, the
application of proceeds to the purchase of  new shares in the Fund or any  other
of  the  funds and  the general  administration of  the Exchange  Privilege, the
Transfer Agent  acts as  agent for  the Distributor  and for  the  shareholder's
selected  broker-dealer,  if  any, in  the  performance of  such  functions. The
Transfer Agent shall be liable for its own negligence and not for the default or
negligence of its correspondents or for losses in transit. The Fund shall not be
liable for any default or negligence  of the Transfer Agent, the Distributor  or
any selected broker-dealer.
 
    The Distributor and any selected broker-dealer have authorized and appointed
the  Transfer Agent to act as their  agent in connection with the application of
proceeds of any redemption of Fund shares to the purchase of shares of any other
fund and the general administration of the Exchange Privilege. No commission  or
discounts  will be paid to the Distributor or any selected broker-dealer for any
transactions pursuant to this Exchange Privilege.
 
    Exchanges are subject to  the minimum investment  requirement and any  other
conditions  imposed by each fund. (The  minimum initial investment is $5,000 for
Dean Witter Liquid  Asset Fund Inc.,  Dean Witter Tax-Free  Daily Income  Trust,
Dean  Witter New  York Municipal Money  Market Trust and  Dean Witter California
Tax-Free Daily  Income Trust,  although those  funds may,  at their  discretion,
accept  initial investments of as low  as $1,000. The minimum initial investment
is $10,000 for Dean Witter Short-Term  U.S. Treasury Trust, although that  fund,
at its discretion, may accept initial purchases of as low as $5,000. The minimum
initial  investment is  $5,000 for Dean  Witter Special Value  Fund. The minimum
initial investment  for all  other  Dean Witter  Funds  for which  the  Exchange
Privilege  is available  is $1,000.)  Upon exchange  into an  Exchange Fund, the
shares of  that  fund will  be  held in  a  special Exchange  Privilege  Account
separately  from accounts of  those shareholders who  have acquired their shares
directly from that  fund. As a  result, certain services  normally available  to
shareholders  of those funds,  including the check writing  feature, will not be
available for funds held in that account.
 
    The Fund and each  of the other  Dean Witter Funds may  limit the number  of
times  this  Exchange  Privilege  may  be exercised  by  any  investor  within a
specified period of  time. Also,  the Exchange  Privilege may  be terminated  or
revised  at any time by the  Fund and/or any of the  Dean Witter Funds for which
 
                                       37
<PAGE>
shares  of the Fund have been exchanged, upon  such notice as may be required by
applicable regulatory agencies (presently sixty  days' prior written notice  for
termination  or  material revision),  provided  that six  months'  prior written
notice of termination will be  given to the shareholders  who hold shares of  an
Exchange  Fund pursuant to the Exchange Privilege, and provided further that the
Exchange Privilege may  be terminated  or materially revised  without notice  at
times  (a) when the New  York Stock Exchange is  closed for other than customary
weekends and holidays, (b) when trading on that Exchange is restricted, (c) when
an emergency exists  as a result  of which  disposal by the  Fund of  securities
owned  by it is not  reasonably practicable or it  is not reasonably practicable
for the Fund fairly  to determine the  value of its net  assets, (d) during  any
other  period when  the Securities and  Exchange Commission by  order so permits
(provided that applicable rules and  regulations of the Securities and  Exchange
Commission  shall govern as to  whether the conditions prescribed  in (b) or (c)
exist) or (e)  if the  Fund would  be unable  to invest  amounts effectively  in
accordance with its investment objective(s), policies and restrictions.
 
    For  further  information  regarding  the  Exchange  Privilege, shareholders
should contact their DWR  or other selected  broker-dealer account executive  or
the Transfer Agent.
 
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
    REDEMPTION.  As stated in the Prospectus, 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  may  be  reduced by  the  amount  of  any  applicable
contingent  deferred  sales  charges  (see  below).  If  shares  are  held  in a
shareholder's account  without  a  share  certificate,  a  written  request  for
redemption  to the Fund's Transfer Agent at  P.O. Box 983, Jersey City, NJ 07303
is required. If  certificates are  held by the  shareholder, the  shares may  be
redeemed by surrendering the certificates with a written request for redemption.
The  share  certificate, or  an accompanying  stock power,  and the  request for
redemption, must be  signed by the  shareholder or shareholders  exactly as  the
shares  are registered. Each request for  redemption, whether or not accompanied
by a share certificate, must  be sent to the  Fund's Transfer Agent, which  will
redeem  the shares at their net asset value next computed (see "Purchase of Fund
Shares" in the Prospectus)  after it receives the  request, and certificate,  if
any,  in good order. Any redemption request received after such computation will
be redeemed at the next determined net asset value. The term "good order"  means
that  the share  certificate, if  any, and  request for  redemption are properly
signed, accompanied by  any documentation  required by the  Transfer Agent,  and
bear  signature guarantees when required  by the Fund or  the Transfer Agent. If
redemption is requested by a  corporation, partnership, trust or fiduciary,  the
Transfer  Agent may require that written evidence of authority acceptable to the
Transfer Agent be submitted before such request is accepted.
 
    Whether certificates are  held by the  shareholder or shares  are held in  a
shareholder's  account, if the proceeds are to  be paid to any person other than
the record owner, or if the proceeds are to be paid to a corporation (other than
the Distributor or a selected broker-dealer for the account of the shareholder),
partnership, trust or fiduciary, or sent to the shareholder at an address  other
than  the  registered  address, signatures  must  be guaranteed  by  an eligible
guarantor acceptable  to the  Transfer Agent  (shareholders should  contact  the
Transfer  Agent for  a determination as  to whether a  particular institution is
such an eligible guarantor). A  stock power may be  obtained from any dealer  or
commercial  bank. The Fund may change  the signature guarantee requirements from
time to time upon notice to shareholders, which may be by means of a  supplement
to the prospectus or a new prospectus.
 
    CONTINGENT DEFERRED SALES CHARGE.  As stated in the Prospectus, a contingent
deferred  sales charge ("CDSC") will be imposed on any redemption by an investor
if after such redemption the current value of the investor's shares of the  Fund
is  less  than the  dollar amount  of all  payments by  the shareholder  for the
purchase of Fund shares during the preceding six years. However, no CDSC will be
imposed to the extent that the net  asset value of the shares redeemed does  not
exceed:  (a) the current net asset value of shares purchased more than six years
prior to  the  redemption,  plus (b)  the  current  net asset  value  of  shares
purchased  through reinvestment  of dividends  or distributions  of the  Fund or
 
                                       38
<PAGE>
another Dean Witter  Fund (see  "Shareholder Services  -- Targeted  Dividends"),
plus  (c) the  current net asset  value of  shares acquired in  exchange for (i)
shares of Dean Witter front-end sales charge funds, or (ii) shares of other Dean
Witter Funds  for  which  shares  of front-end  sales  charge  funds  have  been
exchanged (see "Shareholder Services -- Exchange Privilege"), plus (d) increases
in  the  net asset  value of  the investor's  shares above  the total  amount of
payments for the purchase  of Fund shares made  during the preceding six  years.
The CDSC will be paid to the Distributor.
 
    In  determining the applicability of the CDSC to each redemption, the amount
which represents an  increase in the  net asset value  of the investor's  shares
above  the amount of  the total payments  for the purchase  of shares within the
last six  years will  be redeemed  first.  In the  event the  redemption  amount
exceeds  such increase in value, the next portion of the amount redeemed will be
the amount  which  represents the  net  asset  value of  the  investor's  shares
purchased  more than six  years prior to the  redemption and/or shares purchased
through reinvestment of  dividends or  distributions and/or  shares acquired  in
exchange  for shares of Dean Witter front-end  sales charge funds, or for shares
of other Dean Witter funds for which shares of front-end sales charge funds have
been exchanged. A portion of the  amount redeemed which exceeds an amount  which
represents  both such increase in  value and the value  of shares purchased more
than  six  years  prior  to  the  redemption  and/or  shares  purchased  through
reinvestment  of  dividends  or  distributions  and/or  shares  acquired  in the
above-described exchanges will be subject to a CDSC.
 
    The amount of the CDSC, if any,  will vary depending on the number of  years
from  the time  of payment  for the purchase  of Fund  shares until  the time of
redemption of such shares. For purposes of determining the number of years  from
the  time of any payment for the purchase  of shares, all payments made during a
month will be aggregated  and deemed to have  been made on the  last day of  the
month. The following table sets forth the rates of the CDSC:
 
<TABLE>
<CAPTION>
                                                         CONTINGENT DEFERRED
                      YEAR SINCE                          SALES CHARGE AS A
                       PURCHASE                             PERCENTAGE OF
                     PAYMENT MADE                          AMOUNT REDEEMED
- -------------------------------------------------------  -------------------
<S>                                                      <C>
First..................................................              5.0%
Second.................................................              4.0%
Third..................................................              3.0%
Fourth.................................................              2.0%
Fifth..................................................              2.0%
Sixth..................................................              1.0%
Seventh and thereafter.................................         None
</TABLE>
 
    In determining the rate of the CDSC, it will be assumed that a redemption is
made  of shares held by  the investor for the longest  period of time within the
applicable six-year period. This will result  in any such CDSC being imposed  at
the   lowest  possible  rate.  Accordingly,  shareholders  may  redeem,  without
incurring any CDSC,  amounts equal to  any net  increase in the  value of  their
shares  above the  amount of  their purchase payments  made within  the past six
years and amounts equal to the current  value of shares purchased more than  six
years  prior  to the  redemption and  shares  purchased through  reinvestment of
dividends or distributions  or acquired in  exchange for shares  of Dean  Witter
front-end sales charge funds, or for shares of other Dean Witter Funds for which
shares  of front-end sales  charge funds have  been exchanged. The  CDSC will be
imposed, in accordance with the table shown above, on any redemptions within six
years of purchase which are in excess of these amounts and which redemptions are
not (a)  requested  within  one  year  of  death  or  initial  determination  of
disability   of  a  shareholder,  or  (b)   made  pursuant  to  certain  taxable
distributions from retirement plans or retirement accounts, as described in  the
Prospectus.
 
    PAYMENT FOR SHARES REDEEMED OR REPURCHASED.  As discussed in the Prospectus,
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.  The  term  good order  means  that  the share
certificate, if any, and request for redemption are properly signed, accompanied
by any
 
                                       39
<PAGE>
documentation required by the Transfer Agent, and bear signature guarantees when
required by the Fund or the Transfer Agent. Such payment may be postponed or the
right of redemption suspended at times (a)  when the New York Stock Exchange  is
closed  for other than customary weekends and holidays, (b) when trading on that
Exchange is  restricted, (c)  when an  emergency  exists as  a result  of  which
disposal  by the Fund of securities owned by it is not reasonably practicable or
it is not reasonably practicable for the  Fund fairly to determine the value  of
its  net assets, or (d) during any other period when the Securities and Exchange
Commission by order so permits;  provided that applicable rules and  regulations
of  the  Securities  and Exchange  Commission  shall  govern as  to  whether the
conditions prescribed in (b)  or (c) exist.  If the shares  to be redeemed  have
recently  been  purchased  by check  (including  a certified  or  bank cashier's
check), payment  of redemption  proceeds may  be delayed  for the  minimum  time
needed  to verify that the check used  for investment has been honored (not more
than fifteen days from the  time of investment of the  proceeds of the check  by
the  Transfer  Agent).  Shareholders  maintaining margin  accounts  with  DWR or
another selected broker-dealer are referred to their account executive regarding
restrictions on redemption of shares of the Fund pledged in the margin account.
 
    TRANSFERS OF SHARES.  In the event a shareholder requests a transfer of  any
shares  to a  new registration,  such shares  will be  transferred without sales
charge at the time of  transfer. With regard to the  status of shares which  are
either  subject to the contingent  deferred sales charge or  free of such charge
(and with regard to the  length of time shares subject  to the charge have  been
held),  any transfer involving less than all of the shares in an account will be
made on a pro-rata basis (that is, by transferring shares in the same proportion
that the transferred shares bear to the total shares in the account  immediately
prior  to the transfer). The  transferred shares will continue  to be subject to
any applicable  contingent deferred  sales charge  as if  they had  not been  so
transferred.
 
    REINSTATEMENT  PRIVILEGE.  As discussed in the Prospectus, a shareholder who
has had  his  or her  shares  redeemed or  repurchased  and has  not  previously
exercised  this reinstatement privilege may within thirty days after the date of
redemption or repurchase reinstate  any portion of 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  such  proceeds,  is
received by the Transfer Agent.
 
    Exercise  of the reinstatement privilege will  not affect the federal income
tax treatment of any  gain or loss realized  upon the redemption or  repurchase,
except that if the redemption or repurchase resulted in a loss and reinstatement
is  made in shares of the Fund, some or all of the loss, depending on the amount
reinstated, will not be allowed as a deduction for federal income tax  purposes,
but  will  be applied  to  adjust the  cost basis  of  the shares  acquired upon
reinstatement.
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
    As discussed in the Prospectus, the Fund will determine either to distribute
or to retain  all or part  of any net  long-term capital gains  in any year  for
reinvestment.  If any such gains are retained,  the Fund will pay federal income
tax thereon, and, if the Fund makes an election, the shareholders would  include
such  undistributed gains in their income and shareholders will be able to claim
their share of the  tax paid by  the Fund as a  credit against their  individual
federal income tax.
 
    In  computing net investment income, the  Fund will not amortize premiums or
accrue discounts  on  fixed-income securities  in  the portfolio,  except  those
original  issue discounts or acquisition discounts for which accrual is required
for federal income tax purposes. Additionally, with respect to market  discounts
on  bonds,  a portion  of  any capital  gain  realized upon  disposition  may be
characterized as taxable ordinary income. Realized gains and losses on  security
transactions are determined on the identified cost method.
 
    Gains or losses on sales of securities by the Fund will be long-term capital
gains  or losses  if the  securities have been  held by  the Fund  for more than
twelve months. Gains or losses on the sale of securities held for twelve  months
or less will be short-term gains or losses.
 
                                       40
<PAGE>
    The  Fund has qualified  and intends to  continue to qualify  as a regulated
investment company under Subchapter M of the Internal Revenue Code of 1986  (the
"Code").  If so qualified, the Fund will not be subject to federal income tax on
its net investment income and capital gains, if any, realized during any  fiscal
year in which it distributes such income and capital gains to its shareholders.
 
    Any  dividend or capital  gains distribution received  by a shareholder from
any investment company will have the effect  of reducing the net asset value  of
the  shareholder's stock in that company by  the exact amount of the dividend or
capital  gains  distribution.  Furthermore,  capital  gains  distributions   and
dividends  are subject to  federal income taxes.  If the net  asset value of the
shares should be reduced below a shareholder's  cost as a result of the  payment
of  dividends or the distribution of  realized net long-term capital gains, such
payment or  distribution  would  be  in  part  a  return  of  the  shareholder's
investment  to the  extent of such  reduction below the  shareholder's cost, but
nonetheless would be fully taxable.  Therefore, an investor should consider  the
tax  implications of purchasing Fund shares  immediately prior to a distribution
record date.
 
    Dividends, interest and capital gains received by the Fund may give rise  to
withholding  and  other  taxes  imposed by  foreign  countries.  Tax conventions
between certain countries  and the United  States may reduce  or eliminate  such
taxes. Investors may be entitled to claim United States foreign tax credits with
respect  to such taxes, subject to  certain provisions and limitations contained
in the Code. If  more than 50% of  the Fund's total assets  at the close of  its
fiscal  year consist  of securities of  foreign corporations, the  Fund would be
eligible and  would  determine whether  or  not to  file  an election  with  the
Internal  Revenue Service  pursuant to  which shareholders  of the  Fund will be
required to include their respective pro rata portions of such withholding taxes
in their United States income tax returns as gross income, treat such respective
pro rata portions as  taxes paid by  them, and deduct  such respective pro  rata
portions  in  computing their  taxable incomes  or,  alternatively, use  them as
foreign tax credits against their United  States income taxes. If the Fund  does
elect  to file  the election  with the Internal  Revenue Service,  the Fund will
report annually to its shareholders the amount per share of such withholding.
 
    SPECIAL RULES FOR CERTAIN FOREIGN CURRENCY TRANSACTIONS.  In general,  gains
from  foreign  currencies and  from foreign  currency options,  foreign currency
futures and forward foreign exchange contracts relating to investments in stock,
securities or  foreign currencies  will  be qualifying  income for  purposes  of
determining  whether the Fund qualifies as a regulated investment company. It is
currently unclear,  however, who  will be  treated as  the issuer  of a  foreign
currency instrument or how foreign currency options, futures, or forward foreign
currency  contracts  will be  valued for  purposes  of the  regulated investment
company diversification  requirements  applicable  to the  Fund.  The  Fund  may
request a private letter ruling from the Internal Revenue Service on some or all
of these issues.
 
    Under  Code Section 988, special rules are provided for certain transactions
in a  foreign currency  other  than the  taxpayer's functional  currency  (I.E.,
unless  certain special rules apply, currencies  other than the U.S. dollar). In
general, foreign currency gains or  losses from forward contracts, from  futures
contracts  that are not "regulated futures contracts," and from unlisted options
will be treated as ordinary income or loss under Code Section 988. Also, certain
foreign exchange gains derived with  respect to foreign fixed-income  securities
are also subject to Section 988 treatment. In general, however, Code Section 988
gains  or losses will increase  or decrease the amount  of the Fund's investment
company taxable income available to  be distributed to shareholders as  ordinary
income,  rather  than increasing  or  decreasing the  amount  of the  Fund's net
capital gain. Additionally, if Code  Section 988 losses exceed other  investment
company taxable income during a taxable year, the Fund would not be able to make
any ordinary dividend distributions.
 
    Shareholders  are urged to consult their attorneys or tax advisers regarding
specific questions as to federal, state or local taxes.
 
                                       41
<PAGE>
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
    As discussed in the  Prospectus, from time  to time the  Fund may quote  its
"yield"  and/or its "total return" in advertisements and sales literature. Yield
is calculated for any  30-day period as follows:  the amount of interest  and/or
dividend  income  for each  security in  the Fund's  portfolio is  determined in
accordance with  regulatory requirements;  the total  for the  entire  portfolio
constitutes  the Fund's gross income for the period. Expenses accrued during the
period are subtracted to arrive at "net investment income". The resulting amount
is divided by the product of  the net asset value per  share on the last day  of
the  period multiplied by  the average number of  Fund shares outstanding during
the period that were entitled to dividends. This amount is added to 1 and raised
to the sixth power. 1 is then  subtracted from the result and the difference  is
multiplied  by 2 to arrive at the  annualized yield. For the 30-day period ended
October 31, 1996, the Fund's yield, calculated pursuant to the formula described
above, was 4.85%.
 
    The Fund's "average annual total return" represents an annualization of  the
Fund's  total return  over a  particular period and  is computed  by finding the
annual percentage rate  which will result  in the ending  redeemable value of  a
hypothetical  $1,000 investment made at the beginning of a one, five or ten year
period, or  for  the  period  from  the  date  of  commencement  of  the  Fund's
operations, if shorter than any of the foregoing. The ending redeemable value is
reduced  by any contingent deferred sales charge at  the end of the one, five or
ten year or other  period. For the  purpose of this  calculation, it is  assumed
that  all dividends and distributions are  reinvested. The formula for computing
the average annual total return involves  a percentage obtained by dividing  the
ending  redeemable value by the amount of  the initial investment, taking a root
of the quotient  (where the root  is equivalent to  the number of  years in  the
period)  and subtracting 1  from the result.  The average annual  returns of the
Fund for  the fiscal  year ended  October 31,  1996, for  the five  years  ended
October  31, 1996 and for the period  March 30, 1989 (commencement of the Fund's
operations) through October 31, 1996 were 7.60%, 7.10% and 7.08%, respectively.
 
    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.  Such calculations may  or may  not reflect  the
deduction  of the  contingent deferred sales  charge which,  if reflected, would
reduce the performance quoted. For example,  the average annual total return  of
the  Fund may be calculated in the manner described above, but without deduction
for any applicable contingent deferred sales charge. Based on this  calculation,
the  average annual total returns of the  Fund for the fiscal year ended October
31, 1996, for the five years ended October 31, 1996 and for the period March 30,
1989 through October 31, 1996 were 12.60%, 7.40% and 7.08%, respectively.
 
    In addition, the Fund may compute  its aggregate total return for  specified
periods  by determining the  aggregate percentage rate which  will result in the
ending value of a  hypothetical $1,000 investment made  at the beginning of  the
period.  For the purpose of  this calculation, it is  assumed that all dividends
and distributions  are reinvested.  The formula  for computing  aggregate  total
return  involves a percentage obtained by dividing the ending value (without the
reduction for  any  contingent deferred  sales  charge) by  the  initial  $1,000
investment  and  subtracting  1  from  the  result.  Based  upon  the  foregoing
calculation, the Fund's total return for the fiscal year ended October 31,  1996
was  12.60%, for the five  years ended October 31, 1996  was 42.88%, and for the
period March 30, 1989 through October 31, 1996 was 68.02%.
 
    The Fund  may  also advertise  the  growth of  hypothetical  investments  of
$10,000,  $50,000 and $100,000 in  shares of the Fund by  adding 1 to the Fund's
aggregate total return to date (expressed  as a decimal and without taking  into
account  the  effect of  any applicable  contingent  deferred sales  charge) and
multiplying by $10,000, $50,000 or $100,000, as the case may be. Investments  of
$10,000,  $50,000 and  $100,000 in  the Fund  at inception  would have  grown to
$16,802, $84,010 and $168,020, respectively, at October 31, 1996.
 
    The Fund from time  to time may also  advertise its performance relative  to
certain performance rankings and indexes compiled by independent organizations.
 
                                       42
<PAGE>
DESCRIPTION OF SHARES
- --------------------------------------------------------------------------------
 
    The shareholders of the Fund are entitled to a full vote for each full share
held. All of the Trustees, except for Messrs. Bozic, Purcell and Schroeder, have
been elected by the shareholders of the Fund, most recently at a Special Meeting
of  Shareholders held on January 12,  1993. Messrs. Bozic, Purcell and Schroeder
were elected by the other  Trustees of the Fund on  April 8, 1994. The  Trustees
themselves  have the power  to alter the number  and the terms  of office of the
Trustees, and they may at any time lengthen their own terms or make their  terms
of  unlimited duration and appoint their own successors, provided that always at
least a majority of  the Trustees has  been elected by  the shareholders of  the
Fund.  Under certain circumstances the Trustees may  be removed by action of the
Trustees. The shareholders also  have the right  under certain circumstances  to
remove  the Trustees. The  voting rights of shareholders  are not cumulative, so
that holders of more than 50 percent  of the shares voting can, if they  choose,
elect  all Trustees  being selected, while  the holders of  the remaining shares
would be unable to elect any Trustees.
 
    The Declaration  of Trust  provides that  no Trustee,  officer, employee  or
agent of the Fund is liable to the Fund or to a shareholder, nor is any Trustee,
officer,  employee or agent liable  to any third persons  in connection with the
affairs of the Fund, except as such liability may arise from his own bad  faith,
willful  misfeasance, gross negligence, or reckless  disregard of his duties. It
also provides that all  third persons shall look  solely to the Fund's  property
for  satisfaction of claims arising in connection  with the affairs of the Fund.
With the exceptions stated,  the Declaration of Trust  provides that a  Trustee,
officer, employee or agent is entitled to be indemnified against all liabilities
in connection with the affairs of the Fund.
 
    The  Declaration of Trust permits the  Trustees to authorize the creation of
additional series  of  shares  (the  proceeds of  which  would  be  invested  in
separate,  independently managed  portfolios) and  additional classes  of shares
within any  series (which  would be  used  to distinguish  among the  rights  of
different categories of shareholders, as might be required by future regulations
or  other unforeseen circumstances). The  Trustees have not presently authorized
any such additional series or classes of shares.
 
    The Trust shall be  of unlimited duration subject  to the provisions in  the
Declaration of Trust concerning termination by action of the shareholders.
 
CUSTODIAN AND TRANSFER AGENT
- --------------------------------------------------------------------------------
 
    The Chase Manhattan Bank, N.A., One Chase Plaza, New York, New York 10005 is
the  Custodian of the  Fund's assets. Any  of the Fund's  cash balances with the
Custodian in excess of  $100,000 are unprotected  by federal deposit  insurance.
Such balances may, at times, be substantial.
 
    Dean  Witter Trust Company,  Harborside Financial Center,  Plaza Two, Jersey
City, New Jersey 07302 is the Transfer  Agent of the Fund's shares and  Dividend
Disbursing  Agent for payment of dividends  and distributions on Fund shares and
Agent for shareholders  under various  investment plans  described herein.  Dean
Witter  Trust  Company is  an affiliate  of Dean  Witter InterCapital  Inc., the
Fund's  Investment  Manager  and  Dean  Witter  Distributors  Inc.,  the  Fund's
Distributor.  As Transfer Agent and Dividend Disbursing Agent, Dean Witter Trust
Company's responsibilities include maintaining shareholder accounts,  disbursing
cash  dividends  and  reinvesting  dividends,  processing  account  registration
changes, handling purchase and redemption transactions, mailing prospectuses and
reports,  mailing   and  tabulating   proxies,  processing   share   certificate
transactions,  and maintaining shareholder records and lists. For these services
Dean Witter Trust Company receives a per shareholder account fee.
 
INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
    Price Waterhouse LLP serves as the independent accountants of the Fund.  The
independent  accountants  are  responsible  for  auditing  the  annual financial
statements of the Fund.
 
                                       43
<PAGE>
REPORTS TO SHAREHOLDERS
- --------------------------------------------------------------------------------
 
    The Fund will send to shareholders, at least semi-annually, reports  showing
the  Fund's  portfolio  and  other  information.  An  annual  report, containing
financial statements  audited  by  independent  accountants,  will  be  sent  to
shareholders each year.
 
    The  Fund's fiscal year ends on October  31. The financial statements of the
Fund must  be audited  at least  once a  year by  independent accountants  whose
selection is made annually by the Fund's Board of Trustees.
 
LEGAL COUNSEL
- --------------------------------------------------------------------------------
 
    Sheldon  Curtis, Esq.,  who is  an officer  and the  General Counsel  of the
Investment Manager, is an officer and the General Counsel of the Fund.
 
EXPERTS
- --------------------------------------------------------------------------------
 
    The financial statements  of the Fund  for the year  ended October 31,  1996
included  in  this  Statement  of  Additional  Information  and  incorporated by
reference in the Prospectus have been  so included and incorporated in  reliance
on  the report  of Price Waterhouse  LLP, independent accountants,  given on the
authority of said firm as experts in auditing and accounting.
 
REGISTRATION STATEMENT
- --------------------------------------------------------------------------------
 
    This Statement of Additional Information  and the Prospectus do not  contain
all  of the  information set  forth in the  Registration Statement  the Fund has
filed with the  Securities and  Exchange Commission.  The complete  Registration
Statement  may  be obtained  from the  Securities  and Exchange  Commission upon
payment of the fee prescribed by the rules and regulations of the Commission.
 
                                       44
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1996
 
<TABLE>
<CAPTION>
    PRINCIPAL
    AMOUNT IN                                                  COUPON      MATURITY
    THOUSANDS                                                   RATE         DATE          VALUE
- -----------------------------------------------------------------------------------------------------
<C>                 <S>                                     <C>           <C>         <C>
                    GOVERNMENT & CORPORATE BONDS (83.3%)
                    DENMARK (4.9%)
                    GOVERNMENT OBLIGATION
     DKr    30,600  Denmark Treasury Bond.................     8.00  %      03/15/06  $     5,648,182
                                                                                      ---------------
                    ITALY (21.8%)
                    FINANCE (0.9%)
     ITL   1,520 M  Abbey National Treasury...............    11.00         04/21/97        1,013,438
                                                                                      ---------------
                    GOVERNMENT OBLIGATIONS (20.9%)
           5,250 M  Italy Treasury Bond+..................    10.50         07/15/00        3,799,387
           8,000 M  Italy Treasury Bond...................    10.00         08/01/03        5,807,981
          19,960 M  Italy Treasury Bond+..................     9.50         01/01/05       14,184,664
                                                                                      ---------------
                                                                                           23,792,032
                                                                                      ---------------
                    TOTAL ITALY.....................................................       24,805,470
                                                                                      ---------------
                    NEW ZEALAND (5.8%)
                    GOVERNMENT OBLIGATION
NZ$          9,370  New Zealand Treasury Bond+............     9.00         11/15/96        6,617,202
                                                                                      ---------------
                    PORTUGAL (4.5%)
                    GOVERNMENT OBLIGATION
      PTE  685,400  Portugal Treasury Bond+...............    11.875        02/23/00        5,112,025
                                                                                      ---------------
                    SPAIN (22.1%)
                    GOVERNMENT OBLIGATIONS
      ESP    710 M  Spain Treasury Bond+..................    11.30         01/15/02        6,516,430
           1,840 M  Spain Treasury Bond+..................    10.30         06/15/02       16,339,408
             250 M  Spain Treasury Bond+..................    10.90         08/30/03        2,300,775
                                                                                      ---------------
                    TOTAL SPAIN.....................................................       25,156,613
                                                                                      ---------------
                    UNITED KINGDOM (4.0%)
                    GOVERNMENT OBLIGATION
     L       2,800  United Kingdom Government Bond
                    (Conv.)...............................     7.00         08/06/97        4,583,510
                                                                                      ---------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       45
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1996, CONTINUED
 
<TABLE>
<CAPTION>
    PRINCIPAL
    AMOUNT IN                                                  COUPON      MATURITY
    THOUSANDS                                                   RATE         DATE          VALUE
- -----------------------------------------------------------------------------------------------------
<C>                 <S>                                     <C>           <C>         <C>
                    UNITED STATES (20.2%)
                    U.S. GOVERNMENT OBLIGATIONS
$           10,750  U.S. Treasury Bond+...................    13.125 %      05/15/01  $    13,729,578
             4,250  U.S. Treasury Note+...................     6.50         05/15/05        4,298,408
             5,000  U.S. Treasury Note....................     6.75         08/15/26        5,059,250
                                                                                      ---------------
                    TOTAL UNITED STATES.............................................       23,087,236
                                                                                      ---------------
                    TOTAL GOVERNMENT & CORPORATE BONDS
                    (IDENTIFIED COST $94,993,729)...................................       95,010,238
                                                                                      ---------------
                    SHORT-TERM INVESTMENTS (14.8%)
                    TIME DEPOSITS (a) (6.9%)
                    ITALY (4.0%)
                    BANKING - INTERNATIONAL
     ITL   6,989 M  Bankers Trust.........................     7.50         11/06/96        4,602,050
                                                                                      ---------------
                    NEW ZEALAND (2.7%)
                    BANKING - INTERNATIONAL
NZ$          4,299  Bank of New York......................  9.125-9.25      11/06/96        3,037,090
                                                                                      ---------------
                    SPAIN (0.2%)
                    BANKING - INTERNATIONAL
     ESP    32,777  Bank of New York......................       6.6875     11/06/96          256,331
                                                                                      ---------------
                    TOTAL TIME DEPOSITS
                    (IDENTIFIED COST $7,859,067)....................................        7,895,471
                                                                                      ---------------
                    GOVERNMENT & AGENCY OBLIGATIONS (b) (7.9%)
                    AUSTRALIA (3.7%)
Au$          5,426  Australian Treasury Bill+.............       6.72       12/12/96        4,262,731
                                                                                      ---------------
                    NEW ZEALAND (1.2%)
NZ$          2,000  New Zealand Treasury Bill+............       8.52       09/17/97        1,316,618
                                                                                      ---------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       46
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1996, CONTINUED
 
<TABLE>
<CAPTION>
    PRINCIPAL
    AMOUNT IN                                                  COUPON      MATURITY
    THOUSANDS                                                   RATE         DATE          VALUE
- -----------------------------------------------------------------------------------------------------
<C>                 <S>                                     <C>           <C>         <C>
                    UNITED STATES (3.0%)
$            3,400  Federal Home Loan Mortgage Corp.......     5.53  %      11/01/96  $     3,400,000
                                                                                      ---------------
                    TOTAL GOVERNMENT & AGENCY OBLIGATIONS
                    (AMORTIZED COST $8,971,004).....................................        8,979,349
                                                                                      ---------------
                    TOTAL SHORT-TERM INVESTMENTS
                    (IDENTIFIED COST $16,830,071)...................................       16,874,820
                                                                                      ---------------
TOTAL INVESTMENTS
(IDENTIFIED COST $111,823,800) (C).......       98.1%   111,885,058
CASH AND OTHER ASSETS IN EXCESS OF
LIABILITIES..............................        1.9      2,136,460
                                               -----   ------------
NET ASSETS...............................      100.0%  $114,021,518
                                               -----   ------------
                                               -----   ------------
<FN>
- ---------------------
 M   In millions.
 +   Some or all of these securities are segregated in connection with open
     forward foreign currency contracts.
(a)  Subject to withdrawal restrictions until maturity.
(b)  Securities were purchased on a discount basis.The interest rates shown
     have been adjusted to reflect a money market equivalent yield.
(c)  The aggregate cost for federal income tax purposes is $111,823,800; the
     aggregate gross unrealized appreciation is $2,418,537 and the aggregate
     gross unrealized depreciation is $2,357,279, resulting in net unrealized
     appreciation of $61,258.
</TABLE>
 
FORWARD FOREIGN CURRENCY CONTRACTS OPEN AT OCTOBER 31, 1996:
 
<TABLE>
<CAPTION>
                                                       UNREALIZED
     CONTRACTS           IN EXCHANGE      DELIVERY   APPRECIATION/
    TO DELIVER               FOR            DATE      DEPRECIATION
- -------------------------------------------------------------------
<S>                  <C>                  <C>        <C>
   $      5,906,045       DKr 34,514,434  11/01/96   $     13,591
   Ca$    5,253,590       $    3,906,363  11/01/96        (20,380)
     DEM 29,500,000       $   19,619,580  04/01/97        (16,038)
    NLG  10,000,000       $    5,966,196  07/29/97            508
    BEF 144,300,000       $    4,720,577  07/31/97         (1,869)
    CHF  14,000,000       $   11,680,294  09/19/97        290,461
   Y    930,000,000       $    8,623,088  10/31/97         (6,433)
                                                     --------------
      Net unrealized appreciation..........................$259,840
                                                     --------------
                                                     --------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       47
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
FINANCIAL STATEMENTS
 
STATEMENT OF ASSETS AND LIABILITIES
OCTOBER 31, 1996
 
<TABLE>
<S>                                                           <C>
ASSETS:
Investments in securities, at value
  (identified cost $111,823,800)............................  $111,885,058
Unrealized appreciation on open forward foreign currency
  contracts.................................................       304,560
Cash (including $15,515 in foreign currency)................        20,042
Receivable for:
    Investments sold........................................     3,926,743
    Interest................................................     3,574,253
    Compensated forward foreign currency contracts..........     1,431,452
    Shares of beneficial interest sold......................        58,226
Prepaid expenses............................................        18,446
                                                              ------------
     TOTAL ASSETS...........................................   121,218,780
                                                              ------------
LIABILITIES:
Unrealized depreciation on open forward foreign currency
  contracts.................................................        44,720
Payable for:
    Investments purchased...................................     5,920,158
    Shares of beneficial interest repurchased...............       658,240
    Compensated forward foreign currency contracts..........       267,130
    Plan of distribution fee................................        82,463
    Investment management fee...............................        72,762
Accrued expenses............................................       151,789
                                                              ------------
     TOTAL LIABILITIES......................................     7,197,262
                                                              ------------
NET ASSETS:
Paid-in-capital.............................................   115,494,111
Net unrealized appreciation.................................       360,875
Accumulated undistributed net investment income.............     3,202,026
Accumulated net realized loss...............................    (5,035,494)
                                                              ------------
     NET ASSETS.............................................  $114,021,518
                                                              ------------
                                                              ------------
NET ASSET VALUE PER SHARE,
  12,221,505 SHARES OUTSTANDING (UNLIMITED SHARES AUTHORIZED
  OF $.01 PAR VALUE)........................................
                                                                     $9.33
                                                              ------------
                                                              ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       48
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF OPERATIONS
FOR THE YEAR ENDED OCTOBER 31, 1996
 
<TABLE>
<S>                                                           <C>
NET INVESTMENT INCOME:
INTEREST INCOME (net of $276,282 foreign withholding tax)...  $10,398,653
                                                              -----------
EXPENSES
Plan of distribution fee....................................    1,058,190
Investment management fee...................................      933,697
Transfer agent fees and expenses............................      163,442
Custodian fees..............................................       94,625
Professional fees...........................................       91,463
Shareholder reports and notices.............................       47,568
Registration fees...........................................       28,598
Trustees' fees and expenses.................................       14,942
Other.......................................................        5,965
                                                              -----------
     TOTAL EXPENSES.........................................    2,438,490
                                                              -----------
     NET INVESTMENT INCOME..................................    7,960,163
                                                              -----------
NET REALIZED AND UNREALIZED GAIN (LOSS):
Net realized gain on:
    Investments.............................................    3,557,012
    Futures contracts.......................................    1,350,723
    Foreign exchange transactions...........................    1,611,696
                                                              -----------
     NET GAIN...............................................    6,519,431
                                                              -----------
Net change in unrealized appreciation/depreciation on:
    Investments.............................................       (6,551)
    Translation of forward foreign currency contracts, other
      assets and liabilities denominated in foreign
      currencies............................................      175,887
                                                              -----------
     NET APPRECIATION.......................................      169,336
                                                              -----------
     NET GAIN...............................................    6,688,767
                                                              -----------
NET INCREASE................................................  $14,648,930
                                                              -----------
                                                              -----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       49
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
                                                                FOR THE YEAR       FOR THE YEAR
                                                                   ENDED              ENDED
                                                              OCTOBER 31, 1996   OCTOBER 31, 1995
- -------------------------------------------------------------------------------------------------
<S>                                                           <C>                <C>
INCREASE (DECREASE) IN NET ASSETS:
OPERATIONS:
Net investment income.......................................    $  7,960,163       $  9,681,807
Net realized gain...........................................       6,519,431          4,717,657
Net change in unrealized appreciation/depreciation..........         169,336          3,563,298
                                                              ----------------   ----------------
     NET INCREASE...........................................      14,648,930         17,962,762
Dividends from net investment income........................     (11,619,991)        (8,838,195)
Net decrease from transactions in shares of beneficial
  interest..................................................     (27,172,888)       (50,521,786)
                                                              ----------------   ----------------
     NET DECREASE...........................................     (24,143,949)       (41,397,219)
NET ASSETS:
Beginning of period.........................................     138,165,467        179,562,686
                                                              ----------------   ----------------
     END OF PERIOD
    (INCLUDING UNDISTRIBUTED NET INVESTMENT INCOME OF
    $3,202,026 AND $4,260,073, RESPECTIVELY)................    $114,021,518       $138,165,467
                                                              ----------------   ----------------
                                                              ----------------   ----------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       50
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1996
 
1. ORGANIZATION AND ACCOUNTING POLICIES
Dean Witter World Wide Income Trust (the "Fund") is registered under the
Investment Company Act of 1940, as amended (the "Act"), as a non-diversified,
open-end management investment company. The Fund's primary investment objective
is to provide a high level of current income and, as a secondary objective,
seeks appreciation in the value of its assets. The Fund was organized as a
Massachusetts business trust on October 14, 1988 and commenced operations on
March 30, 1989.
The preparation of financial statements in accordance with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts and disclosures. Actual results could differ from
these estimates. The following is a summary of significant accounting policies:
A. VALUATION OF INVESTMENTS -- (1) all portfolio securities for which
over-the-counter market quotations are readily available are valued at the
latest available bid price prior to the time of valuation; (2) listed options
are valued at the latest sale price on the exchange on which they are listed
unless no sales of such options have taken place that day, in which case they
will be valued at the mean between their latest bid and asked price; (3) futures
contracts are valued at the latest sale price on the commodities exchange on
which they trade unless the Trustees determine that such price does not reflect
their market value, in which case it will be valued at fair value as determined
by the Trustees; (4) 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 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); (5) certain portfolio securities may be valued by an outside
pricing service approved by the Trustees. The pricing service utilizes a matrix
system incorporating security quality, maturity and coupon as the evaluation
model parameters, and/or research and evaluations by its staff, including review
of broker-dealer market price quotations, if available, in determining what it
believes is the fair valuation of the securities valued by such pricing service;
and (6) short-term debt securities having a maturity date of more than sixty
days at time of purchase are valued on a mark-to-market basis until sixty days
prior to maturity and thereafter at amortized cost based on their value on the
61st day. Short-term debt securities having a maturity date of sixty days or
less at the time of purchase are valued at amortized cost.
 
                                       51
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1996, CONTINUED
 
B. ACCOUNTING FOR INVESTMENTS -- Security transactions are accounted for on the
trade date (date the order to buy or sell is executed). Realized gains and
losses on security transactions are determined by the identified cost method.
Discounts are accreted over the life of the respective securities. Interest
income is accrued daily.
C. FUTURES CONTRACTS -- A futures contract is an agreement between two parties
to buy and sell financial instruments at a set price on a future date. Upon
entering into such a contract, the Fund is required to pledge to the broker cash
or U.S. Government securities equal to the minimum initial margin requirements
of the applicable futures exchange. Pursuant to the contract, the Fund agrees to
receive from or pay to the broker an amount of cash equal to the daily
fluctuation in the value of the contract which is known as variation margin.
Such receipts or payments are recorded by the Fund as unrealized gains or
losses. Upon closing of the contract, the Fund realizes a gain or loss equal to
the difference between the value of the contract at the time it was opened and
the value at the time it was closed.
D. FOREIGN CURRENCY TRANSLATION -- The books and records of the Fund are
maintained in U.S. dollars as follows: (1) the foreign currency market value of
investment securities, other assets and liabilities and forward contracts are
translated at the exchange rates prevailing at the end of the period; and (2)
purchases, sales, income and expenses are translated at the exchange rates
prevailing on the respective dates of such transactions. The resultant exchange
gains and losses are included in the Statement of Operations as realized and
unrealized gain/loss on foreign exchange transactions. Pursuant to U.S. Federal
income tax regulations, certain foreign exchange gains/losses included in
realized and unrealized gain/loss are included in or are a reduction of ordinary
income for federal income tax purposes. The Fund does not isolate that portion
of the results of operations arising as a result of changes in the foreign
exchange rates from the changes in the market prices of the securities.
E. FORWARD FOREIGN CURRENCY CONTRACTS -- The Fund may enter into forward foreign
currency contracts which are valued daily at the appropriate exchange rates. The
resultant unrealized exchange gains and losses are included in the Statement of
Operations as unrealized foreign currency gain or loss. The Fund records
realized gains or losses on delivery of the currency or at the time the forward
contract is extinguished (compensated) by entering into a closing transaction
prior to delivery.
 
                                       52
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1996, CONTINUED
 
F. FEDERAL INCOME TAX STATUS -- It is the Fund's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated investment
companies and to distribute all of its taxable income to its shareholders.
Accordingly, no federal income tax provision is required.
G. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- The Fund records dividends and
distributions to its shareholders on the record date. The amount of dividends
and distributions from net investment income and net realized capital gains are
determined in accordance with federal income tax regulations which may differ
from generally accepted accounting principles. These "book/tax" differences are
either considered temporary or permanent in nature. To the extent these
differences are permanent in nature, such amounts are reclassified within the
capital accounts based on their federal tax-basis treatment; temporary
differences do not require reclassification. Dividends and distributions which
exceed net investment income and net realized capital gains for financial
reporting purposes but not for tax purposes are reported as dividends in excess
of net investment income or distributions in excess of net realized capital
gains. To the extent they exceed net investment income and net realized capital
gains for tax purposes, they are reported as distributions of paid-in-capital.
2. INVESTMENT MANAGEMENT AGREEMENT
Pursuant to an Investment Management Agreement with Dean Witter InterCapital
Inc. (the "Investment Manager"), the Fund pays the Investment Manager a
management fee, accrued daily and payable monthly, by applying the following
annual rates to the net assets of the Fund determined as of the close of each
business day: 0.75% to the portion of daily net assets not exceeding $250
million; 0.60% to the portion of daily net assets exceeding $250 million but not
exceeding $500 million; 0.50% to the portion of daily net assets exceeding $500
million but not exceeding $750 million; 0.40% to the portion of daily net assets
exceeding $750 million but not exceeding $1 billion; and 0.30% to the portion of
daily net assets exceeding $1 billion.
Under the terms of the Agreement, in addition to managing the Fund's
investments, the Investment Manager maintains certain of the Fund's books and
records and furnishes, at its own expense, office space, facilities, equipment,
clerical, bookkeeping and certain legal services and pays the salaries of all
personnel, including officers of the Fund who are employees of the Investment
Manager. The Investment Manager also bears the cost of telephone services, heat,
light, power and other utilities provided to the Fund.
 
                                       53
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1996, CONTINUED
 
3. PLAN OF DISTRIBUTION
Shares of the Fund are distributed by Dean Witter Distributors Inc. (the
"Distributor"), an affiliate of the Investment Manager. The Fund has adopted a
Plan of Distribution (the "Plan") pursuant to Rule 12b-1 under the Act pursuant
to which the Fund pays the Distributor compensation, accrued daily and payable
monthly, at an annual rate of 0.85% of the lesser of: (a) the average daily
aggregate gross sales of the Fund's shares since the Fund's inception (not
including reinvestment of dividend 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 upon which such charge has been waived; or (b) the Fund's average daily net
assets. Amounts paid under the Plan are paid to the Distributor to compensate it
for the services provided and the expenses borne by it 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,
account executives of Dean Witter Reynolds Inc., an affiliate of the Investment
Manager and Distributor, and other employees and selected broker-dealers, who
engage in or support distribution of the Fund's 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 be compensated under the Plan for its opportunity costs in
advancing such amounts, which compensation would be in the form of a carrying
charge on any unreimbursed expenses incurred by the Distributor.
Provided that the Plan continues in effect, any cumulative expenses incurred but
not yet recovered may be recovered through future distribution fees from the
Fund and contingent deferred sales charges from the Fund's shareholders.
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. The Distributor has advised the
Fund that such excess amounts, including carrying charges, totaled $8,308,200 at
October 31, 1996.
The Distributor has informed the Fund that for year ended October 31, 1996, it
received approximately $110,000 in contingent deferred sales charges from
certain redemptions of the Fund's shares.
 
                                       54
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1996, CONTINUED
 
4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES
The cost of purchases and proceeds from sales of portfolio securities, excluding
short-term investments, for the year ended October 31, 1996 were as follows:
 
<TABLE>
<CAPTION>
                                                                    PURCHASES       SALES
                                                                   ------------  ------------
<S>                                                                <C>           <C>
Corporate Bonds..................................................  $ 13,750,152  $ 11,908,151
Foreign Government Bonds.........................................   164,103,570   152,451,489
U.S. Government and Agency Obligations...........................   120,484,768   185,167,838
</TABLE>
 
Dean Witter Trust Company, an affiliate of the Investment Manager and
Distributor, is the Fund's transfer agent. At October 31, 1996, the Fund had
transfer agent fees and expenses payable of approximately $15,000.
The Fund has an unfunded noncontributory defined benefit pension plan covering
all independent Trustees of the Fund who will have served as independent
Trustees for at least five years at the time of retirement. Benefits under this
plan are based on years of service and compensation during the last five years
of service. Aggregate pension costs for the year ended October 31, 1996 included
in Trustees' fees and expenses in the Statement of Operations amounted to
$2,773. At October 31, 1996, the Fund had an accrued pension liability of
$49,361 which is included in accrued expenses in the Statement of Assets and
Liabilities.
5. SHARES OF BENEFICIAL INTEREST
Transactions in shares of beneficial interest were as follows:
 
<TABLE>
<CAPTION>
                                                                           FOR THE YEAR                  FOR THE YEAR
                                                                              ENDED                         ENDED
                                                                         OCTOBER 31, 1996              OCTOBER 31, 1995
                                                                   ----------------------------   --------------------------
                                                                     SHARES          AMOUNT         SHARES         AMOUNT
                                                                   -----------   --------------   -----------   ------------
<S>                                                                <C>           <C>              <C>           <C>
Sold.............................................................    2,050,224   $   18,600,786     1,928,605   $ 16,883,971
Reinvestment of dividends........................................      718,178        6,456,463       548,538      4,798,502
                                                                   -----------   --------------   -----------   ------------
                                                                     2,768,402       25,057,249     2,477,143     21,682,473
Repurchased......................................................   (5,765,210)     (52,230,137)   (8,258,249)   (72,204,259)
                                                                   -----------   --------------   -----------   ------------
Net decrease.....................................................   (2,996,808)  $  (27,172,888)   (5,781,106)  $(50,521,786)
                                                                   -----------   --------------   -----------   ------------
                                                                   -----------   --------------   -----------   ------------
</TABLE>
 
6. FEDERAL INCOME TAX STATUS
During the year ended October 31, 1996, the Fund utilized approximately
$2,403,000 of its net capital loss carryover. At October 31, 1996, the Fund had
a net capital loss carryover of approximately $6,200,000 which will be available
through October 31, 2002 to offset future capital gains to the extent provided
by regulations.
 
                                       55
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1996, CONTINUED
 
As of October 31, 1996, the Fund had temporary book/tax differences primarily
attributable to the mark-to-market of open forward foreign currency exchange
contracts and compensated forward foreign currency exchange contracts and
permanent book/tax differences primarily attributable to foreign currency gains.
To reflect reclassifications arising from permanent book/tax differences for the
year ended October 31, 1996, accumulated net realized loss was charged and
accumulated undistributed net investment income was credited $2,601,781.
7. PURPOSES OF AND RISKS RELATING TO CERTAIN FINANCIAL INSTRUMENTS
The Fund may enter into forward foreign currency contracts ("forward contracts")
to facilitate settlement of foreign currency denominated portfolio transactions
or to manage its foreign currency exposure or to sell, for a fixed amount of
U.S. dollars or other currency, the amount of foreign currency approximating the
value of some or all of its holdings denominated in such foreign currency or an
amount of foreign currency other than the currency in which the securities to be
hedged are denominated approximating the value of some or all of its holdings to
be hedged. Additionally, when the Investment Manager anticipates purchasing
securities at some time in the future, the Fund may enter into a forward
contract to purchase an amount of currency equal to some or all the value of the
anticipated purchase for a fixed amount of U.S. dollars or other currency.
To hedge against adverse interest rate, foreign currency and market risks, the
Fund may enter into written options on interest rate futures and interest rate
futures contracts ("derivative investments").
At October 31, 1996, there were no outstanding forward contracts other than
those used to facilitate settlement of foreign currency denominated portfolio
transactions and to manage foreign currency exposure.
These derivative instruments involve elements of market risk in excess of the
amount reflected in the Statement of Assets and Liabilities. The Fund bears the
risk of an unfavorable change in the foreign exchange rates underlying the
forward contracts. Risks may also arise upon entering into these contracts from
the potential inability of the counterparties to meet the terms of their
contracts.
At October 31, 1996 investments in securities of issuers in Spain and Italy
represented 48.1% of the Fund's net assets. These investments, which involve
risks and considerations not present with respect to U.S. securities, may be
affected by economic or political developments in these regions.
 
                                       56
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
FINANCIAL HIGHLIGHTS
 
Selected  ratios  and  per  share  data  for  a  share  of  beneficial  interest
outstanding throughout each period:
 
<TABLE>
<CAPTION>
                                                                                                                  FOR THE
                                                                                                                  PERIOD
                                                                                                                 MARCH 30,
                                                                                                                   1989*
                                                           FOR THE YEAR ENDED OCTOBER 31                          THROUGH
                                    ---------------------------------------------------------------------------   OCTOBER
                                      1996       1995       1994       1993       1992       1991       1990     31, 1989
- --------------------------------------------------------------------------------------------------------------------------
 
<S>                                 <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
PER SHARE OPERATING PERFORMANCE:
 
Net asset value,
 beginning of period............... $   9.08   $   8.55   $   9.39   $   9.11   $   9.11   $  10.38   $   9.55   $  10.00
                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
Net investment income..............     0.60       0.55       0.55       0.59       0.62       0.82       0.95       0.49
Net realized and unrealized gain
 (loss)............................     0.48       0.48      (0.92)      0.27       0.01      (0.99)      0.78      (0.45)
                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
 
Total from investment operations...     1.08       1.03      (0.37)      0.86       0.63      (0.17)      1.73       0.04
                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
 
Less dividends and distributions
 from:
   Net investment income...........    (0.83)     (0.50)     (0.22)     (0.58)     (0.63)     (0.86)     (0.90)     (0.49)
   Net realized gain...............    --         --         --         --         --         (0.24)     --         --
   Paid-in-capital.................    --         --         (0.25)     --         --         --         --         --
                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
 
Total dividends and
 distributions.....................    (0.83)     (0.50)     (0.47)     (0.58)     (0.63)     (1.10)     (0.90)     (0.49)
                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
 
Net asset value, end of period..... $   9.33   $   9.08   $   8.55   $   9.39   $   9.11   $   9.11   $  10.38   $   9.55
                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                    ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
 
TOTAL INVESTMENT RETURN+...........    12.60%     12.45%     (3.99)%     9.72%      7.13%     (1.75)%    19.22%      0.40%(1)
 
RATIOS TO AVERAGE NET ASSETS:
Expenses...........................     1.96%      1.93%      1.91%      1.87%      1.87%      1.76%      1.81%      1.90%(2)
 
Net investment income..............     6.39%      6.21%      5.87%      6.39%      6.78%      8.45%      9.76%      9.10%(2)
 
SUPPLEMENTAL DATA:
Net assets, end of period, in
 thousands.........................  $114,022   $138,165   $179,563   $275,319   $324,185   $421,051   $462,709   $388,578
 
Portfolio turnover rate............      263%       254%       229%       229%       214%       245%       109%       113%(1)
<FN>
 
- ---------------------
 *   Commencement of operations.
 +   Does not reflect the deduction of sales charge. Calculated based on the net
     asset value of the last business day of the period.
(1)  Not annualized.
(2)  Annualized.
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       57
<PAGE>
DEAN WITTER WORLD WIDE INCOME TRUST
REPORT OF INDEPENDENT ACCOUNTANTS
 
TO THE SHAREHOLDERS AND TRUSTEES
OF DEAN WITTER WORLD WIDE INCOME TRUST
In our opinion, the accompanying statement of assets and liabilities, including
the portfolio of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of Dean Witter World Wide Income Trust
(the "Fund") at October 31, 1996, the results of its operations for the year
then ended, the changes in its net assets for each of the two years in the
period then ended and the financial highlights for each of the seven years in
the period then ended and for the period March 30, 1989 (commencement of
operations) through October 31, 1989, in conformity with generally accepted
accounting principles. These financial statements and financial highlights
(hereafter referred to as "financial statements") are the responsibility of the
Fund's management; our responsibility is to express an opinion on these
financial statements based on our audits. We conducted our audits of these
financial statements in accordance with generally accepted auditing standards
which require that we plan and perform the audit to obtain reasonable assurance
about whether the financial statements are free of material misstatement. An
audit includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements, assessing the accounting principles
used and significant estimates made by management, and evaluating the overall
financial statement presentation. We believe that our audits, which included
confirmation of securities at October 31, 1996 by correspondence with the
custodian and brokers, provide a reasonable basis for the opinion expressed
above.
PRICE WATERHOUSE LLP
1177 AVENUE OF THE AMERICAS
NEW YORK, NEW YORK 10036
DECEMBER 17, 1996
 
- --------------------------------------------------------------------------------
                      1996 FEDERAL TAX NOTICE (UNAUDITED)
       For  the  year  ended  October 31,  1996,  the  Fund  has elected,
       pursuant  to  Section  853  of  the  Internal  Revenue  Code,   to
       pass-through foreign taxes of $0.02 per share to its shareholders.
       The  Fund generated net  foreign source income  of $0.42 per share
       with respect to this election.
 
                                       58
<PAGE>
APPENDIX
- --------------------------------------------------------------------------------
 
RATINGS
 
MOODY'S INVESTORS SERVICE INC. ("MOODY'S")
 
                                  BOND RATINGS
 
<TABLE>
<S>        <C>
Aaa        Bonds  which are rated  Aaa are judged  to be of  the best quality.  They carry the
           smallest degree of investment  risk and are generally  referred to as "gilt  edge."
           Interest payments are protected by a large or by an exceptionally stable margin and
           principal  is secure. While  the various protective elements  are likely to change,
           such changes as  can be visualized  are most unlikely  to impair the  fundamentally
           strong position of such issues.
 
Aa         Bonds  which  are rated  Aa are  judged to  be  of high  quality by  all standards.
           Together with the Aaa group  they comprise what are  generally known as high  grade
           bonds.  They are rated lower than the  best bonds because margins of protection may
           not be as large as in Aaa  securities or fluctuation of protective elements may  be
           of  greater  amplitude  or there  may  be  other elements  present  which  make the
           long-term risks appear somewhat larger than in Aaa securities.
 
A          Bonds which are rated A possess many favorable investment attributes and are to  be
           considered  as upper medium grade obligations. Factors giving security to principal
           and interest are considered adequate, but  elements may be present which suggest  a
           susceptibility to impairment sometime in the future.
 
Baa        Bonds  which are rated Baa  are considered as medium  grade obligations; i.e., they
           are neither highly protected  nor poorly secured.  Interest payments and  principal
           security  appear adequate  for the present  but certain protective  elements may be
           lacking or may be characteristically unreliable over any great length of time. Such
           bonds lack  outstanding investment  characteristics and  in fact  have  speculative
           characteristics as well.
 
           Bonds rated Aaa, Aa, A and Baa are considered investment grade bonds.
 
Ba         Bonds  which are  rated Ba  are judged to  have speculative  elements; their future
           cannot be  considered  as  well  assured. Often  the  protection  of  interest  and
           principal  payments may be very moderate, and therefore not well safeguarded during
           both good and  bad times  over the  future. Uncertainty  of position  characterizes
           bonds in this class.
 
B          Bonds  which are rated  B generally lack  characteristics of desirable investments.
           Assurance of interest and  principal payments or of  maintenance of other terms  of
           the contract over any long period of time may be small.
 
Caa        Bonds  which are rated Caa are  of poor standing. Such issues  may be in default or
           there may be present elements of danger with respect to principal or interest.
 
Ca         Bonds which are  rated Ca  represent obligations which  are speculative  in a  high
           degree. Such issues are often in default or have other marked shortcomings.
 
C          Bonds  which are rated C are  the lowest rated class of  bonds, and issues so rated
           can be  regarded as  having extremely  poor prospects  of ever  attaining any  real
           investment standing.
</TABLE>
 
    RATING  REFINEMENTS: Moody's may  apply numerical modifiers, 1,  2, and 3 in
each generic  rating classification  from  Aa through  B  in its  corporate  and
municipal  bond rating system. The modifier  1 indicates that the security ranks
in the higher end  of its generic  rating category; the  modifier 2 indicates  a
mid-range  ranking; and a modifier 3 indicates that the issue ranks in the lower
end of its generic rating category.
 
                                       59
<PAGE>
                            COMMERCIAL PAPER RATINGS
 
    Moody's Commercial  Paper  ratings are  opinions  of the  ability  to  repay
punctually  promissory obligations not having an  original maturity in excess of
nine months. Moody's employs the following three designations, all judged to  be
investment  grade, to indicate the relative repayment capacity of rated issuers:
Prime-1, Prime-2, Prime-3.
 
    Issuers rated Prime-1 have a  superior capacity for repayment of  short-term
promissory  obligations.  Issuers  rated  Prime-2  have  a  strong  capacity for
repayment of short-term promissory obligations;  and Issuers rated Prime-3  have
an  acceptable  capacity  for repayment  of  short-term  promissory obligations.
Issuers rated Not Prime do not fall within any of the Prime rating catagories.
 
STANDARD & POOR'S CORPORATION ("STANDARD & POOR'S")
 
                                  BOND RATINGS
 
    A  Standard  &  Poor's   bond  rating  is  a   current  assessment  of   the
creditworthiness  of  an obligor  with respect  to  a specific  obligation. This
assessment may take into consideration obligors such as guarantors, insurers, or
lessees.
 
    The ratings are  based on  current information  furnished by  the issuer  or
obtained  by Standard  & Poor's  from other  sources it  considers reliable. The
ratings are  based, in  varying degrees,  on the  following considerations:  (1)
likelihood  of default-capacity and willingness of  the obligor as to the timely
payment of interest and repayment of  principal in accordance with the terms  of
the  obligation;  (2)  nature  of  and provisions  of  the  obligation;  and (3)
protection afforded by, and relative position of, the obligation in the event of
bankruptcy, reorganization or other arrangement under the laws of bankruptcy and
other laws affecting creditors' rights.
 
    Standard & Poor's does  not perform an audit  in connection with any  rating
and  may, on occasion, rely on  unaudited financial information. The ratings may
be changed, suspended or withdrawn as a result of changes in, or  unavailability
of, such information, or for other reasons.
 
<TABLE>
<S>        <C>
AAA        Debt  rated AAA has the  highest rating assigned by  Standard & Poor's. Capacity to
           pay interest and repay principal is extremely strong.
 
AA         Debt rated AA has a  very strong capacity to pay  interest and repay principal  and
           differs from the highest-rated issues only in small degree.
 
A          Debt  rated A has  a strong capacity  to pay interest  and repay principal although
           they  are  somewhat  more  susceptible  to  the  adverse  effects  of  changes   in
           circumstances and economic conditions than debt in higher-rated categories.
 
BBB        Debt rated BBB is regarded as having an adequate capacity to pay interest and repay
           principal.  Whereas it  normally exhibits  adequate protection  parameters, adverse
           economic conditions or changing circumstances are more likely to lead to a weakened
           capacity to pay interest  and repay principal  for debt in  this category than  for
           debt in higher-rated categories.
 
           Bonds rated AAA, AA, A and BBB are considered investment grade bonds.
 
BB         Debt  rated BB has  less near-term vulnerability to  default than other speculative
           grade debt. However, it  faces major ongoing uncertainties  or exposure to  adverse
           business,  financial or economic conditions which could lead to inadequate capacity
           to meet timely interest and principal payment.
 
B          Debt rated B has a greater vulnerability to default but presently has the  capacity
           to  meet interest payments and principal repayments. Adverse business, financial or
           economic conditions would likely impair capacity or willingness to pay interest and
           repay principal.
</TABLE>
 
                                       60
<PAGE>
<TABLE>
<S>        <C>
CCC        Debt rated  CCC  has  a  current identifiable  vulnerability  to  default,  and  is
           dependent upon favorable business, financial and economic conditions to meet timely
           payments of interest and repayments of principal. In the event of adverse business,
           financial  or economic  conditions, it is  not likely  to have the  capacity to pay
           interest and repay principal.
 
CC         The rating CC is  typically applied to  debt subordinated to  senior debt which  is
           assigned an actual or implied CCC rating.
 
C          The  rating C  is typically applied  to debt  subordinated to senior  debt which is
           assigned an actual or implied CCC- debt rating.
 
CI         The rating CI is reserved for income bonds on which no interest is being paid.
 
D          Debt rated D is  in default. The  D rating is  assigned on the  day an interest  or
           principal payment is missed.
 
NR         Indicates that no rating has been requested, that there is insufficient information
           on which to base a rating or that Standard & Poor's does not rate a particular type
           of obligation as a matter of policy.
</TABLE>
 
                            COMMERCIAL PAPER RATINGS
 
    Standard  and Poor's commercial paper rating  is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more than
365 days. The  commercial paper rating  is not a  recommendation to purchase  or
sell a security. The ratings are based upon current information furnished by the
issuer  or obtained by S&P from other sources it considers reliable. The ratings
may  be  changed,  suspended,  or  withdrawn  as  a  result  of  changes  in  or
unavailability  of such information.  Ratings are graded  into group categories,
ranging from "A" for the highest quality obligations to "D" for the lowest.  The
categories are as follows:
 
    Issues  assigned A ratings are regarded  as having the greatest capacity for
timely payment. Issues in this category are further refined with the designation
1, 2 and 3 to indicate the relative degree of safety.
 
<TABLE>
<S>        <C>
A-1        indicates that the degree of safety regarding timely payment is very strong.
A-2        indicates capacity for timely  payment on issues with  this designation is  strong.
           However,  the  relative degree  of  safety is  not  as overwhelming  as  for issues
           designated "A-1".
A-3        indicates a satisfactory  capacity for  timely payment.  Obligations carrying  this
           designation  are,  however,  somewhat more  vulnerable  to the  adverse  effects of
           changes in circumstances than obligations carrying the higher designations.
</TABLE>
 
                                       61


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