WITTER DEAN HIGH YIELD SECURITIES INC
497, 1996-11-07
Previous: COMPUTER DEVICES INC /MD, 10QSB, 1996-11-07
Next: HAEMONETICS CORP, 10-Q, 1996-11-07



<PAGE>
                        DEAN WITTER
                        HIGH YIELD SECURITIES INC.
                        PROSPECTUS--OCTOBER 24, 1996
 
- -------------------------------------------------------------------------------
 
DEAN  WITTER HIGH YIELD SECURITIES INC.  (THE "FUND") IS AN OPEN-END 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
CAPITAL APPRECIATION, BUT ONLY WHEN  CONSISTENT WITH ITS PRIMARY OBJECTIVE.  THE
FUND  SEEKS  HIGH  CURRENT  INCOME  BY  INVESTING  PRINCIPALLY  IN  FIXED-INCOME
SECURITIES WHICH  ARE  RATED  IN  THE LOWER  CATEGORIES  BY  ESTABLISHED  RATING
SERVICES  (Baa OR LOWER  BY MOODY'S INVESTORS  SERVICE, INC. OR  BBB OR LOWER BY
STANDARD &  POOR'S  CORPORATION)  OR  ARE  NON-RATED  SECURITIES  OF  COMPARABLE
QUALITY.
 
Investors  should carefully consider  the relative risks,  including the risk of
default, of investing in high yield securities, which are commonly known as junk
bonds. Bonds of this type  are considered to be  speculative with regard to  the
payment  of interest and return of principal. Investors should also be cognizant
of the  fact  that  such  securities are  not  generally  meant  for  short-term
investing and should assess the risks associated with an investment in the Fund.
(See "Investment Objectives and Policies.")
 
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 October  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  below.  The
Statement    of    Additional    Information   is    incorporated    herein   by
reference.
 
<TABLE>
<CAPTION>
TABLE OF CONTENTS
 
<S>                                                 <C>
Prospectus Summary................................       2
 
Summary of Fund Expenses..........................       3
 
Financial Highlights..............................       4
 
The Fund and its Management.......................       5
 
Investment Objectives and Policies................       5
 
  Special Risk Considerations.....................       6
 
Investment Restrictions...........................       9
 
Purchase of Fund Shares...........................       9
 
Shareholder Services..............................      12
 
Redemptions and Repurchases.......................      14
 
Dividends, Distributions and Taxes................      15
 
Performance Information...........................      15
 
Additional Information............................      16
 
Appendix..........................................      17
</TABLE>
 
SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, AND THE  SHARES ARE NOT FEDERALLY  INSURED BY THE FEDERAL  DEPOSIT
INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.
 
DEAN WITTER
HIGH YIELD SECURITIES INC.
TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
 
(212) 392-2550 or (800) 869-NEWS (TOLL-FREE)
 
- --------------------------------------------------------------------------------
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE 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 DISTRIBUTORS INC., DISTRIBUTOR
<PAGE>
PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------
 
<TABLE>
<S>             <C>
THE FUND        An   open-end  diversified  management  investment   company  investing  principally  in
                lower-rated fixed- income securities (see page 5).
- -------------------------------------------------------------------------------------------------------
 
SHARES OFFERED  Common stock of $0.01 par value (see page 16).
- -------------------------------------------------------------------------------------------------------
 
OFFERING        The price of the shares offered by this prospectus varies with the changes in the  value
PRICE           of  the Fund's investments. The  offering price, determined once  daily as of 4:00 P.M.,
                New York time, on each day that the New York Stock Exchange is open, is equal to the net
                asset value plus a sales charge of 5.5% of the offering price, scaled down on  purchases
                of $25,000 or over (see pages 9-10).
- -------------------------------------------------------------------------------------------------------
 
MINIMUM         Minimum   initial  investment,   $1,000  ($100  if   the  account   was  opened  through
PURCHASE        EasyInvest-SM-); minimum subsequent investment, $100 (see page 9).
- -------------------------------------------------------------------------------------------------------
 
INVESTMENT      A high level of  current income primarily; capital  appreciation is secondary (see  page
OBJECTIVES      5).
- -------------------------------------------------------------------------------------------------------
 
INVESTMENT      High  yield fixed-income securities,  principally rated Baa/BBB  or lower, and non-rated
POLICIES        securities of  comparable  quality. However,  the  Fund  may also  invest  in  municipal
                securities, futures
                and options and common stock under certain circumstances (see pages 5 through 9).
- -------------------------------------------------------------------------------------------------------
 
INVESTMENT      Dean  Witter InterCapital Inc., 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 $86.5 billion  at September 30, 1996 (see page
                5).
- -------------------------------------------------------------------------------------------------------
 
MANAGEMENT      The monthly fee is at an  annual rate of 1/2 of 1%  of average daily net assets,  scaled
FEE             down on assets over $500 million (see page 5).
- -------------------------------------------------------------------------------------------------------
 
DIVIDENDS AND   Income  dividends  are  declared  and  paid  monthly;  capital  gains,  if  any,  may be
CAPITAL GAINS   distributed at least annually. Dividends and distributions are automatically  reinvested
DISTRIBUTIONS   in  additional shares at net asset value  (without sales charge), unless the shareholder
                elects to receive cash (see page 15).
- -------------------------------------------------------------------------------------------------------
 
DISTRIBUTOR     Dean Witter Distributors Inc. (see page 9).
- -------------------------------------------------------------------------------------------------------
 
SALES           5.5% of  offering price  (5.82% of  amount invested);  reduced charges  on purchases  of
CHARGE          $25,000 or more (see page 10).
- -------------------------------------------------------------------------------------------------------
 
REDEMPTION      Shares  are  redeemable  by  the shareholder  at  net  asset value.  An  account  may be
                involuntarily redeemed if the  shares owned have a  value of less than  $100 or, if  the
                account  was opened through  EasyInvest-SM-, if after twelve  months the shareholder has
                invested less than $1,000 in the account (see page 14).
- -------------------------------------------------------------------------------------------------------
 
RISKS           Compared with higher rated, lower yielding fixed-income securities, portfolio securities
                of the Fund may be  subject to greater risk of  loss of income and principal,  including
                the  risk of default, and greater risk of increases and decreases in net asset value due
                to market  fluctuations.  The Fund  may  purchase foreign  securities,  when-issued  and
                delayed  delivery and when, as and if  issued securities and other securities subject to
                repurchase agreements which involve certain special risks. The Fund may purchase  common
                stock  which  is exchangeable  for  fixed-income securities  in  circumstances involving
                takeovers or recapitalizations. The  Fund may also invest  in futures and options  which
                may  be  considered speculative  in  nature and  may  involve greater  risks  than those
                customarily assumed by certain  other investment companies which  do not invest in  such
                instruments.  Investors should review the investment objectives and policies of the Fund
                carefully and consider their ability to  assume the risks involved in purchasing  shares
                of the Fund (see pages 5 through 8).
- -------------------------------------------------------------------------------------------------------
</TABLE>
 
  THE ABOVE IS QUALIFIED IN ITS ENTIRETY BY THE DETAILED INFORMATION APPEARING
                                ELSEWHERE IN THE
            PROSPECTUS AND 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 August 31, 1996.
 
<TABLE>
<CAPTION>
SHAREHOLDER TRANSACTION EXPENSES
<S>                                                 <C>
Maximum Sales Charge Imposed on Purchases (as a
 percentage of offering price)....................  5.50%
Maximum Sales Charge Imposed on Reinvested
 Dividends........................................   None
Deferred Sales Charge.............................   None
Redemption Fees...................................   None
Exchange Fees.....................................   None
</TABLE>
 
<TABLE>
<S>                                                 <C>
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE OF
 AVERAGE NET ASSETS)
Management Fees...................................  .50%
Other Expenses....................................  .16%
Total Fund Operating Expenses.....................  .66%
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                    10
EXAMPLE                                             1 YEAR    3 YEARS   5 YEARS    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:.......    $61       $75       $90       $133
</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" and "Purchase of Fund Shares" in this  Prospectus.
There  are reduced sales charges on purchases  of $25,000 or more (see "Purchase
of Fund Shares" in this Prospectus).
 
                                                                               3
<PAGE>
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
 
The following ratios and per share data for a share of capital stock outstanding
throughout  each period have  been audited by  Price Waterhouse LLP, independent
accountants. The financial  highlights should  be read in  conjunction with  the
financial   statements,  the  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  Stockholders, which  may be  obtained  without
charge upon request to the Fund.
 
<TABLE>
<CAPTION>
                                                        FOR THE YEAR ENDED AUGUST 31
                        --------------------------------------------------------------------------------------------
                         1996     1995     1994     1993     1992     1991      1990      1989      1988      1987
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
<S>                     <C>      <C>      <C>      <C>      <C>      <C>       <C>       <C>       <C>       <C>
PER SHARE OPERATING
  PERFORMANCE:
Net asset value,
  beginning of
  period..............  $ 6.77   $ 6.83   $ 7.58   $ 7.23   $ 5.92   $  6.78   $ 10.40   $ 11.99   $ 13.72   $ 14.16
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
  Net investment
   income.............    0.83     0.80     0.79     0.89     0.95      0.94      1.48      1.67      1.84      1.82
  Net realized and
   unrealized gain
   (loss).............   (0.12)   (0.06)   (0.68)    0.54     1.04     (0.86)    (3.78)    (1.48)    (1.77)    (0.46)
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
  Total from
   investment
   operations.........    0.71     0.74     0.11     1.43     1.99      0.08     (2.30)     0.19      0.07      1.36
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
  Less dividends and
   distributions from:
    Net investment
     income...........   (0.77)   (0.80)   (0.86)   (1.08)   (0.68)    (0.94)    (1.32)    (1.75)    (1.80)    (1.80)
    Paid-in-capital...    --       --       --       --       --       --        --        (0.03)    --        --
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
  Total dividends and
   distributions......   (0.77)   (0.80)   (0.86)   (1.08)   (0.68)    (0.94)    (1.32)    (1.78)    (1.80)    (1.80)
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
  Net asset value, end
   of period..........  $ 6.71   $ 6.77   $ 6.83   $ 7.58   $ 7.23   $  5.92   $  6.78   $ 10.40   $ 11.99   $ 13.72
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
                        ------   ------   ------   ------   ------   -------   -------   -------   -------   -------
TOTAL INVESTMENT
  RETURN+.............   11.07%   11.98%    0.93%   22.29%   35.46%     4.67%   (23.28)%    1.39%     0.97%    10.07%
RATIOS TO AVERAGE NET
  ASSETS:
  Expenses............    0.66%    0.79%    0.69%    0.67%    0.77%     0.87%     0.60%     0.49%     0.49%     0.51%
  Net investment
   income.............   12.27%   12.06%   10.40%   12.14%   13.96%    16.47%    17.67%    14.61%    14.79%    12.83%
SUPPLEMENTAL DATA:
  Net assets, end of
   period, in
   millions...........    $460     $455     $478     $540     $512      $436      $690    $1,794    $2,140    $2,034
  Portfolio turnover
   rate...............      49%      74%     127%     173%     113%       93%       21%       55%      107%      176%
</TABLE>
 
- ------------------------
+ DOES NOT REFLECT THE DEDUCTION OF SALES LOAD. CALCULATED BASED ON THE NET
  ASSET VALUE OF THE LAST BUSINESS DAY OF THE PERIOD.
 
4
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
Dean  Witter High Yield Securities Inc.  (the "Fund") is an open-end diversified
management investment company incorporated in Maryland on June 14, 1979.
 
    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  $83.6
billion  as  of September  30, 1996.  The Investment  Manager also  manages, and
advises  managers  of,   common  stock  portfolios   of  pension  plans,   other
institutions and individuals which aggregated approximately $2.9 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 Board of  Directors reviews 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  expenses of the Fund  assumed by the Investment  Manager, the Fund pays the
Investment  Manager  monthly  compensation   calculated  daily  by  applying   a
percentage rate to the daily net assets of the Fund which declines as net assets
of  the Fund reach levels  over $500 million (up to  $3 billion). For the fiscal
year ended  August  31,  1996,  the  Fund  accrued  total  compensation  to  the
Investment Manager amounting to 0.50% of the Fund's average daily net assets and
the  Fund's total  expenses amounted  to 0.66% of  the Fund's  average daily net
assets.
 
INVESTMENT OBJECTIVES AND POLICIES
- --------------------------------------------------------------------------------
 
The primary investment objective of the Fund is to earn a high level of  current
income.  As a secondary objective, the  Fund will seek capital appreciation, but
only when  consistent  with  its primary  objective.  Capital  appreciation  may
result,  for example, from  an improvement in  the credit standing  of an issuer
whose securities are held in the Fund's  portfolio or from a general decline  in
interest  rates, or a combination of  both. Conversely, capital depreciation may
result, for  example,  from a  lowered  credit standing  or  a general  rise  in
interest  rates,  or a  combination  of both.  There  is no  assurance  that the
objectives will be achieved.
 
    The  higher  yields  sought  by  the  Fund  are  generally  obtainable  from
securities rated in the lower cate-
gories  by recognized  rating services.  The Fund  seeks high  current income by
investing principally in fixed-income securities  rated Baa or lower by  Moody's
Investors  Service,  Inc. ("Moody's"),  or  BBB or  lower  by Standard  & Poor's
Corporation ("Standard & Poor's"). Fixed-income securities rated Baa by  Moody's
or  BBB by Standard & Poor's have speculative characteristics greater than those
of more highly  rated bonds,  while fixed-income securities  rated Ba  or BB  or
lower  by  Moody's and  Standard &  Poor's, respectively,  are considered  to be
speculative investments. Furthermore, the Fund does not have any minimum quality
rating standard for its investments. As such, the Fund may invest in  securities
rated  as low  as Caa, Ca  or C  by Moody's or  CCC, CC,  C or C1  by Standard &
Poor's. Fixed-income securities  rated Caa or  Ca by Moody's  may already be  in
default  on payment of  interest or principal,  while bonds rated  C by Moody's,
their lowest bond rating, can be regarded as having extremely poor prospects  of
ever  attaining  any real  investment  standing. Bonds  rated  C1 by  Standard &
Poor's, their lowest bond rating, are no longer making interest payments. For  a
further  discussion of the characteristics and  risks associated with high yield
securities, see  "Special Investment  Considerations"  below. A  description  of
corporate bond ratings is contained in the Appendix.
 
    Non-rated securities will also be considered for investment by the Fund when
the  Investment Manager believes that the  financial condition of the issuers of
such securities,  or the  protection afforded  by the  terms of  the  securities
themselves, makes them appropriate investments for the Fund.
 
    In  circumstances where the Investment Manager determines that investment in
municipal obligations  would facilitate  the Fund's  ability to  accomplish  its
investment  objectives, it  may invest  up to  10% of  its total  assets in such
obligations, including municipal bonds issued at a discount.
 
    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.
Generally,   higher  yielding  bonds   are  subject  to  a   credit  risk  to  a
 
                                                                               5
<PAGE>
greater extent than higher quality bonds.  The interest rate risk refers to  the
fluctuations  in net  asset value  of any  portfolio of  fixed-income securities
resulting solely 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  generally  decline,  and when
interest rates fall, prices generally rise.
 
    The ratings of fixed-income securities by Moody's and Standard & Poor's  are
a  generally accepted barometer of credit risk. However, as the creditworthiness
of issuers of  lower-rated fixed-income  securities is  more problematical  than
that  of issuers of higher-rated fixed-income securities, the achievement of the
Fund's investment objective will be more dependent upon the Investment Manager's
own credit  analysis  than  would be  the  case  with a  mutual  fund  investing
primarily  in  higher  quality  bonds. The  Investment  Manager  will  utilize a
security's  credit   rating   as   simply  one   indication   of   an   issuer's
creditworthiness and will principally rely upon its own analysis of any security
currently  held  by the  Fund or  potentially  purchasable by  the Fund  for its
portfolio.
 
    In determining which securities to purchase or hold for the Fund's portfolio
and in seeking to reduce credit and interest rate risks, the Investment  Manager
will  rely on  information from  various sources,  including: the  rating of the
security; research, analysis  and appraisals of  brokers and dealers,  including
DWR;   the  views  of  the  Fund's   directors  and  others  regarding  economic
developments and interest rate trends; and the Investment Manager's own analysis
of factors it  deems relevant.  The extent to  which the  Investment Manager  is
successful  in reducing depreciation or losses arising from either interest rate
or credit risks depends in part on the Investment Manager's portfolio management
skills and judgment in evaluating the factors affecting the value of securities.
No assurance can be given regarding the degree of success that will be achieved.
 
SPECIAL RISK CONSIDERATIONS
 
Because of the special nature of the Fund's investment in high yield securities,
commonly known  as junk  bonds,  the Investment  Manager  must take  account  of
certain  special  considerations in  assessing  the risks  associated  with such
investments. Although the  growth of  the high  yield securities  market in  the
1980s  had paralleled a long economic expansion, recently many issuers have been
affected by adverse economic and market conditions. It should be recognized that
an economic downturn or increase in interest rates is likely to have a  negative
effect  on  the high  yield  bond market  and  on the  value  of the  high yield
securities held  by the  Fund, as  well as  on the  ability of  the  securities'
issuers to repay principal and interest on their borrowings.
 
    The  prices of high yield securities have been found to be less sensitive to
changes in  prevailing interest  rates than  higher-rated investments,  but  are
likely  to be more sensitive to adverse economic changes or individual corporate
developments. During  an  economic  downturn or  substantial  period  of  rising
interest  rates, highly leveraged issuers  may experience financial stress which
would adversely affect  their ability  to service their  principal and  interest
payment  obligations,  to  meet  their projected  business  goals  or  to obtain
additional financing. If the issuer of a fixed-income security owned by the Fund
defaults, the Fund may incur additional expenses to seek recovery. In  addition,
periods  of economic  uncertainty and  change can  be expected  to result  in an
increased volatility of market prices of high yield securities and a concomitant
volatility in the net asset value of  a share of the Fund. Moreover, the  market
prices  of certain  of the Fund's  portfolio securities which  are structured as
zero coupon and payment-in-kind securities are  affected to a greater extent  by
interest rate changes and thereby tend to be more volatile than securities which
pay  interest periodically and in cash (see "Dividends, Distributions and Taxes"
for a discussion of the tax ramifications of investments in such securities).
 
    The secondary market for high yield  securities may be less liquid than  the
markets  for higher quality securities and, as  such, may have an adverse effect
on the market prices of certain securities. The limited liquidity of the  market
may  also adversely affect  the ability of  the Fund's Directors  to arrive at a
fair value for certain high yield securities at certain times and could make  it
difficult  for the Fund  to sell certain  securities. In addition,  new laws and
potential new laws  may have  an adverse  effect upon  the value  of high  yield
securities and a concomitant negative impact upon the net asset value of a share
of the Fund.
 
    During  the fiscal year  ended August 31, 1996,  the monthly dollar weighted
average ratings  of  the debt  obligations  held by  the  Fund, expressed  as  a
percentage of the Fund's total investments, were as follows:
 
<TABLE>
<CAPTION>
                                                PERCENTAGE OF
                  RATINGS                     TOTAL INVESTMENTS
- --------------------------------------------  ------------------
<S>                                           <C>
AAA/Aaa.....................................                0.1%
AA/Aa.......................................                0.0%
A/A.........................................                6.2%
BBB/Baa.....................................                0.0%
BB/Ba.......................................                6.2%
B/B.........................................               74.9%
CCC/Caa.....................................                6.6%
CC/Ca.......................................                0.0%
C/C.........................................                0.0%
D...........................................                0.0%
Unrated.....................................                6.0%
</TABLE>
 
    Consistent with its primary investment objective, the Fund anticipates that,
under  normal conditions, at least 65% of the  value of its total assets will be
invested in  the lower-rated  and non-rated  fixed-income securities  previously
described.  However,  when  the  difference  between  yields  derived  from such
securities and those derived from higher rated issues are relatively narrow, the
Fund may invest in the higher rated issues since they may provide similar yields
with somewhat less risk.  Fixed-income securities appropriate  for the Fund  may
include both convertible and nonconvertible debt securities and preferred stock.
 
6
<PAGE>
    Pending investment of proceeds from the sale of shares of the Fund or of its
portfolio  securities or  at other times  when market conditions  dictate a more
"defensive" investment  strategy, the  Fund may  invest without  limit in  money
market  instruments, including commercial paper  of corporations organized under
the  laws  of  any  state  or  political  subdivision  of  the  United   States,
certificates  of deposit, bankers' acceptances and other obligations of domestic
banks or domestic  branches of foreign  banks, or foreign  branches of  domestic
banks,  in  each  case  having  total  assets  of  at  least  $500  million, and
obligations issued or guaranteed by the United States Government (including zero
coupon securities), or foreign governments or their respective instrumentalities
or agencies. The yield on these securities will generally tend to be lower  than
the  yield on other  securities to be purchased  by the Fund.  To the extent the
Fund purchases Eurodollar certificates of deposit issued by foreign branches  of
domestic  United States  banks, consideration  will be  given to  their domestic
marketability, the  lower reserve  requirements normally  mandated for  overseas
banking  operations,  the  possible  impact  of  interruptions  in  the  flow of
international  currency  transactions  and  economic  developments  which  might
adversely affect the payment of principal or interest.
PUBLIC  UTILITIES.  The Fund's  investments in public utilities,  if any, may be
subject to certain risks incurred by the Fund due to Federal, State or municipal
regulatory changes, insufficient rate increases or cost overruns.
 
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  risk  of  default or
bankruptcy of the selling institution,  the Fund follows procedures designed  to
minimize such risks.
 
WHEN-ISSUED  AND DELAYED DELIVERY SECURITIES.   The Fund may purchase securities
on a when-issued or delayed delivery basis; I.E., delivery and payment can  take
place  a month or more  after the date of  the transaction. These securities are
subject to market fluctuation and no interest accrues to the purchaser prior  to
settlement.  At  the  time  the  Fund  makes  the  commitment  to  purchase such
securities, it will re-cord  the transaction and  thereafter reflect the  value,
each  day, of such security  in determining its net  asset value. An increase in
the percentage of the Fund's assets committed to the purchase of securities on a
when-issued or delayed delivery basis may increase the volatility of the  Fund's
net asset value.
 
WHEN, AS AND IF ISSUED SECURITIES.  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.
 
FOREIGN SECURITIES.   The  Fund may  invest up  to 20%  of its  total assets  in
fixed-income  securities issued by foreign governments and other foreign issuers
and in foreign currency issues of domestic issuers, but not more than 10% of its
total assets in such securities, whether issued by a foreign or domestic issuer,
which are denominated in foreign currency. Foreign securities investments may be
affected by changes in currency  rates or exchange control regulations,  changes
in  governmental administration  or economic or  monetary policy  (in the United
States and abroad) or changed  circumstances in dealings between nations.  Costs
will  be incurred in connection with conversions between various currencies held
by the Fund.
 
    Investments in  foreign  securities will  also  occasion risks  relating  to
political  and  economic  developments  abroad,  including  the  possibility  of
expropriations or confiscatory taxation, limitations  on the use or transfer  of
Fund   assets  and  any  effects  of   foreign  social,  economic  or  political
instability. Foreign companies are not subject to the regulatory requirements of
U.S. companies and, as  such, there may be  less publicly available  information
about  such companies.  Moreover, foreign companies  are not  subject to uniform
accounting,  auditing  and  financial   reporting  standards  and   requirements
comparable  to those applicable  to U.S. companies.  Finally, in the  event of a
default of any foreign debt obligations, it  may be more difficult for the  Fund
to obtain or enforce a judgment against the issuers of such securities.
 
    Securities  of foreign issuers may be less liquid than comparable securities
of U.S.  issuers  and,  as such,  their  price  changes may  be  more  volatile.
Furthermore,  foreign exchanges and broker-dealers are generally subject to less
government  and   exchange  scrutiny   and   regulation  than   their   American
counterparts.  Brokerage commissions,  dealer concessions  and other transaction
costs may be higher on foreign markets than in the U.S. In addition, differences
in clearance and settlement procedures on foreign markets may occasion delays in
settlements of  the  Fund's  trades  effected in  such  markets.  As  such,  the
inability  to dispose  of portfolio  securities due  to settlement  delays could
result in  losses to  the  Fund due  to subsequent  declines  in value  of  such
securities and the inability of the
 
                                                                               7
<PAGE>
Fund to make intended security purchases due to settlement problems could result
in a failure of the Fund to make potentially advantageous investments.
 
COMMON  STOCKS.  The Fund may invest in common  stocks in an amount up to 20% of
its total assets in the circumstances  described below when consistent with  the
Fund's investment objectives. First, the Fund may purchase common stock which is
included  in a unit with fixed-income  securities purchased by the Fund. Second,
the Fund may acquire common stock when fixed-income securities owned by the Fund
are converted by  the issuer  into common stock.  Third, the  Fund may  exercise
warrants attached to fixed-income securities purchased by the Fund. Finally, the
Fund  may  purchase  the common  stock  of  companies involved  in  takeovers or
recapitalizations where the issuer or a stockholder has offered, or pursuant  to
a "going private" transaction is effecting, a transaction involving the issuance
of newly issued fixed-income securities to the holders of such common stock.
 
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.
 
FUTURES CONTRACTS AND  OPTIONS ON  FUTURES.  The  Fund may  invest in  financial
futures  contracts ("futures contracts")  and related options  thereon. The Fund
may sell a futures contract or a call option thereon or purchase a put option on
such futures contract, if the  Investment Manager anticipates interest rates  to
rise,  as  a hedge  against  a decrease  in the  value  of the  Fund's portfolio
securities. If  the  Investment Manager  anticipates  that interest  rates  will
decline,  the Fund may purchase  a futures contract or  a call option thereon or
sell a put option on such futures contract to protect against an increase in the
price of the securities  the Fund intends to  purchase. These futures  contracts
and  related options thereon  will be used  only as a  hedge against anticipated
interest rate changes.
 
    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.  The Fund  may not purchase  or sell  futures
contracts  or  related options  thereon  if, immediately  thereafter,  more than
one-third of its net assets would be hedged.
 
OPTIONS.   The  Fund  may  purchase  or sell  (write)  listed  options  on  debt
securities  as a means of achieving additional return or of hedging the value of
the Fund's portfolio. The Fund may  only write covered options which are  listed
on  national securities exchanges. The Fund may  not write covered options in an
amount exceeding 20% of  the value of  its total assets. The  Fund may only  buy
options  which are  listed on national  securities exchanges. The  Fund will not
purchase options if, as a result, the aggregate cost of all outstanding  options
exceeds 10% of the Fund's total assets.
 
    For  a  discussion  of futures  and  options,  including the  risks  of such
transactions, see the Statement of Additional Information.
 
PRIVATE PLACEMENTS.   The  Fund may  invest  up to  5% of  its total  assets  in
securities  which are  subject to restrictions  on resale because  they have not
been registered under the  Securities Act of 1933,  as amended (the  "Securities
Act"),   or  which  are  otherwise  not  readily  marketable.  (See  "Investment
Restrictions" in the Statement of Additional Information.) 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 Board of Directors of the Fund, will  make
a determination as to the liquidity of each restricted security purchased by the
Fund.  If a restricted security is determined to be "liquid", such security will
not be considered  to be  "restricted" for  purposes of  the above-disclosed  5%
limitation  and will not be included  within the category "illiquid securities",
which under  current policy  may not  exceed  15% of  the Fund's  total  assets.
However,  investing in Rule 144A securities  could have the effect of increasing
the level of Fund illiquidity to the  extent the Fund, at a particular point  of
time,  may  be  unable  to find  qualified  institutional  buyers  interested in
purchasing such securities.
 
8
<PAGE>
PORTFOLIO MANAGEMENT
 
The Fund is actively managed by the Investment Manager with a view to  achieving
the  Fund's  investment objective.  The  Fund is  managed  within InterCapital's
Taxable Income Group,  which managed  approximately $12.9 billion  in assets  at
September  30, 1996. Peter M. Avelar is  a Senior Vice President of InterCapital
and a member  of InterCapital's Taxable  Income Group. Mr.  Avelar has been  the
primary  portfolio manager of the Fund since January, 1991. He has been managing
fixed  portfolios   consisting  of   fixed-income  and   equity  securities   at
InterCapital for over five years.
    Securities  purchased by the Fund are,  generally, sold by dealers acting as
principal for their own accounts. Pursuant to an order issued by the  Securities
and  Exchange Commission, the Fund may  effect principal transactions in certain
money market instruments with Dean Witter Reynolds Inc. ("DWR"), a broker-dealer
affiliate of InterCapital. In addition, the Fund may incur brokerage commissions
on transactions conducted through DWR.
 
    Although the  Fund  does not  intend  to engage  in  substantial  short-term
trading,  it 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. The Fund's portfolio turnover rate for
the fiscal year ended August 31, 1996 was 49%. 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 trading policy.
 
    Except as otherwise noted, all  investment policies and practices  discussed
above  are not  fundamental policies  of the  Fund and,  as such  may be changed
without shareholder approval.
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
The investment restrictions listed  below are among  the restrictions that  have
been  adopted by the Fund as  fundamental policies. Under the Investment Company
Act of 1940, as  amended (the "Act"),  a fundamental policy  may not be  changed
without the vote of a majority of the outstanding voting securities of the Fund,
as defined in the Act.
 
    The Fund may not:
 
        1. Acquire common stocks in excess of 20% of its total assets.
 
        2.  Invest more than 5% of its total assets in the securities of any one
    issuer (other  than obligations  of,  or guaranteed  by, the  United  States
    Government, its agencies or instrumentalities).
 
        3.  Purchase more than 10% of the voting securities, or more than 10% of
    any class of securities,  of any issuer. For  purposes of this  restriction,
    all outstanding debt securities of an issuer are considered as one class and
    all preferred stocks of an issuer are considered as one class.
 
        4.  Invest more than 25% of its total assets in securities of issuers in
    any one industry. For purposes of this restriction, gas, electric, water and
    telephone utilities will each be treated as being a separate industry.  This
    restriction does not apply to obligations issued or guaranteed by the United
    States Government or its agencies or instrumentalities.
 
        5.  Invest more than 5%  of its total assets  in securities of companies
    having a record,  together with predecessors,  of less than  three years  of
    continuous  operation. This restriction shall not apply to any obligation of
    the United States Government, its agencies or instrumentalities.
 
PURCHASE OF FUND SHARES
- --------------------------------------------------------------------------------
 
The Fund  offers its  shares  for sale  to the  public  on a  continuous  basis.
Pursuant   to  a  Distribution  Agreement  between  the  Fund  and  Dean  Witter
Distributors Inc. (the "Distributor"), an  affiliate of the Investment  Manager,
shares  of the Fund  are distributed by  the Distributor and  offered by DWR and
other dealers who have entered  into 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 High  Yield Securities  Inc., directly  to  Dean
Witter  Trust Company (the "Transfer Agent") at P.O. Box 1040, Jersey City, N.J.
07303 (see  Investment  Application at  the  back  of this  Prospectus),  or  by
contacting  a DWR or other Selected Broker-Dealer account executive. The minimum
initial purchase in the case of investments through EasyInvest-SM-, an automatic
purchase plan (see "Shareholder Services"), is $100, provided that the  schedule
of  automatic investments will  result in investments  totalling at least $1,000
within the first twelve months.
 
                                                                               9
<PAGE>
    In the case of purchases made pursuant to Systematic Payroll Deduction plans
(including Individual Retirement plans), the Fund, in its discretion, may accept
such Purchases without regard  to any minimum amounts  which would otherwise  be
required  if  the Fund  has  reason to  believe  that additional  purchases will
increase the amount of the purchase of  shares in all accounts under such  plans
to  at least $1,000. Certificates for shares purchased will not be issued unless
a request is  made by  the shareholder  in writing  to the  Transfer Agent.  The
offering  price will be the net asset  value per share next determined following
receipt of an order (see "Determination of Net Asset Value" below), plus a sales
charge (expressed as a percentage of the offering price) on a single transaction
as shown in the following table:
 
<TABLE>
<CAPTION>
                                            SALES CHARGE
                                  ---------------------------------
                                    PERCENTAGE        APPROXIMATE
            AMOUNT OF                OF PUBLIC       PERCENTAGE OF
        SINGLE TRANSACTION        OFFERING PRICE    AMOUNT INVESTED
  ------------------------------  ---------------   ---------------
  <S>                             <C>               <C>
  Less than $25,000.............            5.50%             5.82%
  $25,000 but less than
   $50,000......................            5.00              5.26
  $50,000 but less than
   $100,000.....................            4.25              4.44
  $100,000 but less than
   $250,000.....................            3.25              3.36
  $250,000 but less than
   $500,000.....................            2.50              2.56
  $500,000 but less than
   $1,000,000...................            1.75              1.78
  $1,000,000 and over...........            0.50              0.50
</TABLE>
 
    Upon notice to all Selected  Broker-Dealers, the Distributor may reallow  up
to  the  full applicable  sales charge  as  shown in  the above  schedule during
periods specified in such notice.  During periods when substantially the  entire
sales  charge is  reallowed, such  Selected Broker-Dealers  may be  deemed to be
underwriters as that term is defined in the Securities Act.
 
    The above schedule of sales charges  is applicable to purchases in a  single
transaction  by, among others: (a) an individual;  (b) an individual, his or her
spouse and their children under the age  of 21 purchasing shares for his or  her
own  accounts; (c) a trustee  or other fiduciary purchasing  shares for a single
trust estate or  a single fiduciary  account; (d) a  pension, profit-sharing  or
other  employee benefit plan qualified or non-qualified under Section 401 of the
Internal Revenue Code;  (e) tax-exempt organizations  enumerated in Section  501
(c)  (3)  or (13)  of  the Internal  Revenue  Code; (f)  employee  benefit plans
qualified under Section 401 of the Internal Revenue Code of a single employer or
of employers who are  "affiliated persons" of each  other within the meaning  of
Section  2(a) (3) (c) of  the Act; and for  investments in Individual Retirement
Accounts of employees of a single employer through Systematic Payroll  Deduction
plans; or (g) any other organized group of persons, whether incorporated or not,
provided  the organization has been in existence for at least six months and has
some purpose other than  the purchase of redeemable  securities of a  registered
investment  company at a discount.  Shares of the Fund may  be sold at their net
asset value, without the imposition of  a sales charge, to the employee  benefit
plans  established by  DWR and SPS  Transaction Services, Inc.  (an affiliate of
DWR) for  their employees  as qualified  under Section  401(k) of  the  Internal
Revenue Code.
 
    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  such  as  special  sales  incentives,  including  trips,
educational and/or business seminars and merchandise.
 
    Shares 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. The Fund and
the Distributor reserve the right to reject any purchase order.
 
ANALOGOUS DEAN WITTER FUNDS.  The  Distributor and the Investment Manager  serve
in  the  same capacities  for Dean  Witter High  Income Securities,  an open-end
investment company with investment objectives  and policies similar to those  of
the Fund. Unlike the Fund, however, shares of Dean Witter High Income Securities
are  offered to the public at net  asset value, with a contingent deferred sales
charge assessed upon redemptions  within five years of  purchase, as well as  an
annual  Rule 12b-1 distribution fee,  rather than a sales  charge imposed at the
time of purchase. These two Dean Witter Funds have differing fees and  expenses,
which  will affect performance. Investors who would like to receive a prospectus
for Dean Witter High Income Securities should call the telephone numbers  listed
on  the front cover of this Prospectus,  or may call their account executive for
additional information.
 
REDUCED SALES CHARGES
 
COMBINED PURCHASE PRIVILEGE.   Investors may have the  benefit of reduced  sales
charges  in accordance with the above  schedule by combining purchases of shares
of the Fund in single  transactions with the purchase  of shares of Dean  Witter
Tax-Exempt  Securities Trust  and of  Dean Witter  Funds which  are sold  with a
contingent deferred sales charge ("CDSC funds"). The sales charge payable on the
purchase of shares of the Fund and Dean Witter Tax-Exempt Securities Trust  will
be  at their  respective rates  applicable to the  total amount  of the combined
concurrent purchases of shares  of the Fund,  Dean Witter Tax-Exempt  Securities
Trust and the CDSC funds.
 
10
<PAGE>
RIGHT  OF ACCUMULATION.  The above persons  and entities may also benefit from a
reduction of the  sales charges  in accordance with  the above  schedule if  the
cumulative net asset value of shares purchased in a single transaction, together
with  shares previously  purchased (including  shares of  Dean Witter Tax-Exempt
Securities Trust and CDSC funds, and of certain other Dean Witter funds acquired
in exchange  for shares  of such  funds)  which are  held at  the time  of  such
transaction, amounts to $25,000 or more.
 
    The  Distributor must be notified by  DWR or other Selected Broker-Dealer or
the shareholder  at  the time  a  purchase order  is  placed that  the  purchase
qualifies  for  the  reduced charge  under  the Right  of  Accumulation. Similar
notification must be made in writing by  the dealer or shareholder when such  an
order  is placed by mail.  The reduced sales charge will  not be granted if: (a)
such notification is not furnished at the time of the order; or (b) a review  of
the records of the Selected Broker-Dealer or the Transfer Agent fails to confirm
the investor's represented holdings.
 
LETTER  OF INTENT.  The foregoing schedule of reduced sales charges will also be
available to investors who enter into  a written Letter of Intent providing  for
the  purchase, within a thirteen-month period, of shares of the Fund from DWR or
other Selected Broker-Dealer. The cost of shares  of the Fund or shares of  Dean
Witter  Tax-Exempt Securities Trust  which were previously  purchased at a price
including a front-end sales charge during the 90-day period prior to the date of
receipt by the Distributor of the Letter  of Intent, or of shares of other  Dean
Witter  funds acquired in exchange for shares of such funds acquired during such
period at a price including a front-end  sales charge, which are still owned  by
the shareholder, may also be included in determining the applicable reduction.
 
    For  further information concerning purchases  of the Fund's shares, contact
DWR or  other Selected  Broker-Dealer  or consult  the Statement  of  Additional
Information.
 
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 on each day that the New York Stock Exchange is open (or, on days
when the New  York Stock Exchange  closes prior  to 4:00 p.m.,  at such  earlier
time),  by  taking the  value of  all assets  of the  Fund, subtracting  all its
liabilities, dividing by the number of  shares outstanding and adjusting to  the
nearest  cent. The  net asset  value per  share will  not be  determined on Good
Friday and on such other federal and non-federal holidays as are observed by the
New York Stock Exchange.
 
    In the calculation of  the Fund's net asset  value: (1) an equity  portfolio
security  listed or traded on  the New York or  American Stock Exchange or other
domestic or foreign exchange or  quoted by NASDAQ is  valued at its latest  sale
price  on that exchange or quotation service;  (if there were no sales that day,
the security is valued  at the latest  bid price); and  (2) all other  portfolio
securities  for which  over-the-counter market quotations  are readily available
are valued  at the  latest bid  price. When  market quotations  are not  readily
available,   including  circumstances  under  which  it  is  determined  by  the
Investment Manager that sale  or bid prices are  not reflective of a  security's
market  value, portfolio securities are valued at their fair value as determined
in good faith under procedures established by and under the general  supervision
of  the  Fund's Board  of Directors  (valuation of  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).
 
    Certain  of  the Fund's  portfolio securities  may be  valued by  an outside
pricing service  approved  by the  Fund's  Directors. 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.
 
    Municipal  securities will  be valued  for the  Fund by  an outside computer
matrix pricing service  approved by  the Board of  Directors. Periodically,  the
Investment   Manager   and  the   Board  of   Directors  review   the  continued
appropriateness of the prices obtained through the service.
 
    Short-term debt securities with remaining maturities  of 60 days or less  at
the  time of purchase are valued at  amortized cost, unless the Board determines
such does not reflect the securities' fair value, in which case these securities
will be  valued  at their  fair  market value  as  determined by  the  Board  of
Directors. Other short-term debt securities will be valued on a marked-to-market
basis  until such time as they reach a  maturity of 60 days, whereupon they will
be valued  at amortized  cost  using their  value on  the  61st day  unless  the
Directors determine such does not reflect the securities' market value, in which
case these securities will be valued at their fair market value as determined by
the  Board of  Directors. Listed  options on debt  securities 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  closing bid and asked  prices. Unlisted options on  debt
securities  and all options on equity securities  are valued at the mean between
their latest bid and asked price. Futures are valued at the latest sale price on
the commodities exchange on which they trade unless the Directors determine that
such price does  not reflect  their market  value, in  which case  they will  be
valued  at their fair value  as determined by the  Board of Directors. 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 Board  of
Directors.
 
                                                                              11
<PAGE>
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. 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 in  shares
of  the Fund (or in cash if the shareholder so requests), at the net asset value
per share (without  sales charge), 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 changes, 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  through whom shares  were purchased and will  be forwarded to the
shareholder upon receipt of proper instructions.
 
INVESTMENT OF 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 (without sales charge) next
determined after receipt  by the Transfer  Agent by returning  the check or  the
proceeds to the Transfer Agent within 30 days after the payment date.
 
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 Fund's  Transfer Agent for investment  in shares of the
Fund (see  "Purchase  of  Fund  Shares"  and  "Redemptions  and  Repurchases  --
Involuntary Redemption").
 
SYSTEMATIC WITHDRAWAL PLAN.  A 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  offering price.  The plan  provides for  monthly or  quarterly
(March,  June, September, December) checks in any  amount, not less than $25, or
in any whole percentage of the account balance, on an annualized basis.
 
    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
Systematic Withdrawal  Plan, withdrawals  made  concurrently with  purchases  of
additional shares are inadvisable because of the sales charges applicable to the
purchase of additional shares.
 
    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  through  the
Investment  Manager for use by the self-employed, eligible 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 the Fund.
 
SYSTEMATIC  PAYROLL  DEDUCTION PLAN.   There  is also  available to  employers a
Systematic Payroll Deduction  Plan by which  their employees may  invest in  the
Fund. For further information please contact the Fund.
 
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 front-end (at time of purchase) sales-charge ("FESC funds"), Dean Witter
Funds sold with  a contingent deferred  sales charge ("CDSC  funds"), five  Dean
Witter  Funds which are money market funds and Dean Witter Short-Term Bond Fund,
Dean Witter Limited Term Municipal  Trust, Dean Witter Short-Term U.S.  Treasury
Trust,  Dean Witter Balanced  Income Fund, Dean Witter  Balanced Growth Fund and
Dean Witter Intermediate Term U.S. Treasury Trust (the foregoing eleven non-FESC
and 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
holding  period  for  exchanges  of  shares  acquired  by  exchange  or dividend
reinvestment. However,  shares  of  CDSC funds,  including  shares  acquired  in
exchange  for shares  of FESC  funds, may  not be  exchanged for  shares of FESC
funds. Thus, shareholders  who exchange  their Fund  shares for  shares of  CDSC
funds  may subsequently exchange those shares for  shares of other CDSC funds or
Exchange Funds but may not reacquire FESC fund shares by exchange.
 
12
<PAGE>
    An exchange to another FESC fund, to  a CDSC fund, or to a non-money  market
fund  Exchange 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
Exchange Funds, FESC  funds and CDSC  funds can  be effected on  the same  basis
(except  that CDSC fund shares  may not be exchanged  for shares of FESC funds).
Shares of a CDSC  fund acquired in exchange  for shares of an  FESC fund (or  in
exchange  for shares of other Dean Witter Funds for which shares of an FESC fund
have been exchanged)  are not subject  to any contingent  deferred sales  charge
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.
 
    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  may be
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  DWR or  other  Selected  Broker-Dealer account
executive  (no  Exchange  Privilege  Authorization  Form  is  required).   Other
shareholders  (and those shareholders  who are clients of  DWR or other Selected
Broker-Dealer but  who  wish  to  make exchanges  directly  by  telephoning  the
Transfer  Agent) must  complete and  forward to  the Transfer  Agent an Exchange
Privilege Authorization form, copies of which may be obtained from the  Transfer
Agent, to initiate an exchange. If the Authorization Form is used, exchanges may
be  made  in writing  or  by contacting  the  Transfer Agent  at  (800) 869-NEWS
(toll-free). The Fund will employ reasonable procedures to confirm that exchange
instructions communicated over  the telephone are  genuine. Such procedures  may
include requiring various forms of personal identification such as name, mailing
address,  social security  or other tax  identification number and  DWR or other
Selected Broker-Dealer account number (if any). Telephone instructions may  also
be recorded. If such procedures are not employed, the Fund may be liable for any
losses due to unauthorized or fraudulent instructions.
 
    Telephone exchange instructions will be accepted if received by the Transfer
Agent  between 9:00 a.m.  and 4:00 p.m. New  York time, on any  day the New York
Stock Exchange is  open. Any  shareholder wishing to  make an  exchange who  has
previously  filed an Exchange Privilege 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 experience of 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.
 
                                                                              13
<PAGE>
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
REDEMPTION.  Shares  of the Fund  can be redeemed  for cash at  any time at  the
current  net asset  value per share  next determined (without  any redemption or
other charge). If  shares are held  in a shareholder's  account without a  stock
certificate,  a written request for redemption  is required. If certificates are
held by  the shareholder(s),  the shares  may be  redeemed by  surrendering  the
certificate(s)  with a written request for  redemption along with any additional
information requested  by  the Transfer  Agent.  The stock  certificate,  or  an
accompanying  stock power, and the request for redemption, must be signed by the
shareholder(s)  exactly  as  the  shares   are  registered.  Each  request   for
redemption,  whether or not accompanied by a  stock certificate, must be sent to
the Fund's Transfer Agent  at P.O. Box  983, Jersey City,  N.J. 07303, who  will
redeem  the shares at  their net asset  value next determined  (see "Purchase of
Fund Shares--Determination of Net Asset  Value") after it receives the  request,
and  certificate, if any,  in good order. Any  redemption request received after
such determination will be redeemed at the price next determined.
 
REPURCHASE.  DWR and other Selected Broker-Dealers are authorized to repurchase,
as agent  for the  Fund, shares  represented  by a  stock certificate  which  is
delivered  to  any of  their  offices. Shares  held  in a  shareholder's account
without a stock 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 determined (see  "Purchase of Fund  Shares--
Determination  of Net Asset  Value") after such repurchase  order is received by
DWR or other Selected Broker-Dealer. Repurchase orders received by DWR and other
Selected Broker-Dealers prior  to 4:00 p.m.  New York time  on any business  day
will  be priced at  the net asset  value per share  that is based  on that day's
close provided that, if presented by a DWR or other Selected Broker-Dealer, they
are time-stamped by DWR or other Selected Broker-Dealer no later than 4:00  p.m.
New  York time on such  day. It is the responsibility  of DWR and other Selected
Broker-Dealers to transmit orders received by  them to the Distributor prior  to
4:00  p.m. New York time on such day. If the DWR or other Selected Broker-Dealer
should fail to do so, the shareholder's entitlement to that day's closing  price
must  be  settled  between  the  shareholder  and  the  Selected  Broker-Dealer.
Repurchase orders received by DWR  and other Selected Broker-Dealers after  4:00
p.m.  New York  time, will  be priced on  the basis  of the  next business day's
close. Selected Broker-Dealers may charge for their services in connection  with
the  repurchase, but neither the Fund nor  the Distributor or DWR charges a fee.
Payment for shares repurchased may  be made by the  Fund to the Distributor  for
the   account  of  the  shareholder.  The   offer  by  DWR  and  other  Selected
Broker-Dealers to repurchase shares from  shareholders may be suspended 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 at times when
normal trading is not taking place on the New York Stock Exchange. If the shares
to  be redeemed have recently been purchased by check, payment of the redemption
proceeds may be delayed  for the minimum  time needed to  verify that the  check
used  for investment has been honored (not  more than fifteen days from the time
of investment  of the  check by  the Transfer  Agent). Shareholders  maintaining
Margin Accounts with DWR and other Selected Broker Dealers 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 (without a sales charge) next determined
after a reinstatement request,  together with the proceeds,  is received by  the
Transfer Agent.
 
INVOLUNTARY  REDEMPTION.  The Fund reserves the right, on sixty days' notice, to
redeem at their net asset value the shares of any shareholder whose shares  have
a  value of less  than $100 as a  result of redemptions  or repurchases, or such
lesser amount as may be fixed  by the Board of Directors  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 in  which to make an  additional investment in an  amount
which  will increase the value of the  account to at least the applicable amount
or more before the redemption is processed.
 
14
<PAGE>
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
DIVIDENDS AND DISTRIBUTIONS.  The Fund intends to declare and 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  capital gains distributions  will be  paid in additional
Fund  shares  (without   sales  charge)  and   automatically  credited  to   the
shareholder's  account  without  issuance  of  a  stock  certificate  unless the
shareholder requests in  writing that  all dividends be  paid in  cash and  such
request  is received by the Transfer Agent  at least five business days prior to
the record date  for such distributions.  (See "Shareholder  Services--Automatic
Investment of Dividends and Distributions".)
 
TAXES.   Because the Fund intends to distribute all of its net investment income
and net capital  gains to shareholders  and otherwise continue  to qualify as  a
regulated investment company under Subchapter M of the Internal Revenue Code, it
is  not expected that the Fund will be required to pay any Federal income tax on
such income and capital gains.
 
    With respect to the  Fund's investments in  zero coupon and  payment-in-kind
bonds,  the  Fund accrues  income prior  to  any actual  cash payments  by their
issuers. In  order to  continue to  comply  with Subchapter  M of  the  Internal
Revenue  Code and  remain able to  forego payment  of Federal income  tax on its
income and capital  gains, the Fund  must distribute all  of its net  investment
income,  including income accrued from zero coupon and payment-in-kind bonds. As
such, the Fund may be  required to dispose of  some of its portfolio  securities
under   disadvantageous  circumstances   to  generate  the   cash  required  for
distribution.
 
    Shareholders will  normally  have  to  pay Federal  income  taxes,  and  any
applicable  state and/or local income taxes,  on the dividends and distributions
they receive from the Fund. Such dividends and distributions, to the extent they
are derived from  net investment  income or  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 calendar  quarter of any year to shareholders  of
record  for that period which are paid in the following year prior to February 1
will be deemed received by the shareholder  in the prior year. Since the  Fund's
income  is expected to be derived primarily from interest rather than dividends,
only a small portion, if any, of such dividends and distributions is expected to
be  eligible  for  the  Federal   dividends  received  deduction  available   to
corporations.
 
    Distributions  of  net  long-term  capital gains,  if  any,  are  taxable to
shareholders as long-term capital gains regardless of how long a shareholder has
held the Fund's shares and regardless of whether the distribution is received in
additional shares or in cash. Capital  gains distributions are not eligible  for
the dividends received deduction. Capital gains may be generated by transactions
in options and futures contracts engaged in by the Fund.
 
    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 receive a statement of
their  dividends  and capital  gains distributions  for tax  purposes, including
information as to the portion taxable as ordinary income and the portion taxable
as 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.
 
    Shareholders should consult their tax advisers regarding specific  questions
as to state or local taxes and as to the applicability of the foregoing to their
current federal tax situation.
 
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 maximum offering  price
per  share  at  the  end  of the  period),  all  in  accordance  with applicable
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,  five and ten
years. Average annual total return reflects all income
 
                                                                              15
<PAGE>
earned by the Fund, any appreciation  or depreciation of the Fund's assets,  all
expenses  incurred by the  Fund and all sales  charges incurred by shareholders,
for the  stated periods.  It  also assumes  reinvestment  of all  dividends  and
distributions paid by the Fund.
 
    In  addition to the foregoing, the Fund  may advertise its total return over
different periods of time by means of aggregate, average, year-by-year or  other
types  of total  return figures.  Such calculations may  or may  not reflect the
imposition of the front-end sales charge which, if reflected,
would reduce  the performance  quoted.  The Fund  may  advertise the  growth  of
hypothetical  investments of $10,000, $50,000 or  $100,000 in shares of the Fund
by adding 1  to the Fund's  aggregate total  return to date  and multiplying  by
$9,450,  $47,875 or  $96,750 ($10,000,  $50,000 or  $100,000 adjusted  for 5.5%,
4.25% and 3.25%  sales charges, respectively).  The Fund from  time to time  may
also  advertise  its performance  relative to  certain performance  rankings and
indexes compiled by independent organizations.
 
ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------
 
VOTING RIGHTS.  All shares  of the Fund are of  common stock of $0.01 par  value
and  are  equal as  to  earnings, assets  and  voting privileges.  There  are no
conversion,  pre-emptive  or  other  subscription   rights.  In  the  event   of
liquidation,  each share of common stock of  the Fund is entitled to its portion
of all of the  Fund's assets after  all debts and expenses  have been paid.  The
shares do not have cumulative voting rights.
 
    Under  ordinary circumstances, the Fund is not required, nor does it intend,
to hold Annual Meetings of Stockholders. The Directors may call Special Meetings
of Stockholders for action by stockholder vote as may be required by the Act  or
the Fund's By-Laws.
 
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  60 days of  a
sale  or  a sale  within 60  days of  a  purchase) of  a security.  In addition,
investment personnel may  not purchase  or sell  a security  for their  personal
account  within 30 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.
 
16
<PAGE>
APPENDIX--RATINGS OF INVESTMENTS
- --------------------------------------------------------------------------------
 
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 present 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>
 
CONDITIONAL  RATING:   Municipal bonds for  which the security  depends upon the
completion  of  some  act  or  the  fulfillment  of  some  condition  are  rated
conditionally.  These  are  bonds  secured by  (a)  earnings  of  projects under
construction, (b) earnings of projects  unseasoned in operation experience,  (c)
rentals which begin when facilities are completed, or (d) payments to which some
other  limiting condition attaches. Parenthetical rating denotes probable credit
stature upon completion of construction or elimination of basis of condition.
 
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.
 
                                                                              17
<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 categories.
 
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.
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.
</TABLE>
 
18
<PAGE>
<TABLE>
<S>        <C>
CI         The rating CI is reserved for income bonds on which no interest is being paid.
NR         Indicates that no rating has been requested, that there is insufficient information on
           which to base a rating or  that Standard & Poor's does  not rate a particular type  of
           obligation as a matter of policy.
 
           Bonds  rated BB,  B, CCC, CC  and C  are regarded as  having predominantly speculative
           characteristics with  respect to  capacity to  pay interest  and repay  principal.  BB
           indicates  the least degree  of speculation and  C the highest  degree of speculation.
           While such debt will  likely have some quality  and protective characteristics,  these
           are outweighed by large uncertainties or major risk exposures to adverse conditions.
 
           Plus (+) or minus (-): The ratings from AA to CCC may be modified by the addition of a
           plus or minus sign to show relative standing within the major ratings categories.
 
           In  the case of municipal bonds, the foregoing ratings are sometimes followed by a "p"
           which indicates  that the  rating is  provisional. A  provisional rating  assumes  the
           successful  completion of  the project  being financed  by the  bonds being  rated and
           indicates that payment of debt service  requirements is largely or entirely  dependent
           upon  the successful and timely completion of the project. This rating, however, while
           addressing credit quality subsequent to completion of the project, makes no comment on
           the likelihood or risk of default upon failure of such completion.
</TABLE>
 
                            COMMERCIAL PAPER RATINGS
 
Standard and  Poor's commercial  paper rating  is a  current assessment  of  the
likelihood of timely payment of debt having an original maturity of no more than
365  days. The commercial  paper rating is  not a recommendation  to purchase or
sell a security. The ratings are based upon current information furnished by the
issuer or obtained by S&P from other sources it considers reliable. The  ratings
may  be  changed,  suspended,  or  withdrawn  as  a  result  of  changes  in  or
unavailability of such  information. Ratings are  graded into group  categories,
ranging  from "A"  for the  highest quality obligations  to "D"  for the lowest.
Ratings are  applicable to  both taxable  and tax-exempt  commercial paper.  The
categories are as follows:
 
    Issues  assigned A ratings are regarded  as having the greatest capacity for
timely payment. Issues in this category are further refined with the designation
1, 2 and 3 to indicate the relative degree of safety.
 
<TABLE>
<S>        <C>
A-1        indicates that the degree of safety regarding timely payment is very strong.
A-2        indicates capacity  for timely  payment on  issues with  this designation  is  strong.
           However, the relative degree of safety is not as overwhelming as for issues designated
           "A-1".
A-3        indicates  a  satisfactory  capacity  for timely  payment.  Obligations  carrying this
           designation are, however, somewhat more vulnerable  to the adverse effects of  changes
           in circumstances than obligations carrying the higher designations.
</TABLE>
 
                                                                              19
<PAGE>
 
DEAN WITTER
HIGH YIELD SECURITIES INC.
TWO WORLD TRADE CENTER
NEW YORK, NEW YORK 10048
 
BOARD OF DIRECTORS
Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
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
Peter M. Avelar
Vice President
Thomas F. Caloia
Treasurer
 
CUSTODIAN
The Bank of New York
90 Washington Street
New York, New York 10286
 
TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
Dean Witter Trust Company
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
 
INDEPENDENT ACCOUNTANTS
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036
 
INVESTMENT MANAGER
Dean Witter InterCapital Inc.


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission