MERRILL LYNCH CORPORATE BOND FUND INC/NY
485BPOS, 1998-01-22
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<PAGE>
 
    
 AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 22, 1998.     
                                                                FILE NO. 2-62329
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                                ----------------
 
                                   FORM N-1A
 
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933          [X]
 
                          PRE-EFFECTIVE AMENDMENT NO.                        [_]
 
                                                                                
                      POST-EFFECTIVE AMENDMENT NO. 24                        [X]
 
                                     AND/OR
 
        REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940      [X]
 
                                                                             
                             AMENDMENT NO. 20                                [X]
                        (CHECK APPROPRIATE BOX OR BOXES)
 
                                ----------------
 
                    MERRILL LYNCH CORPORATE BOND FUND, INC.
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
 
           P.O. BOX 9011
       PRINCETON, NEW JERSEY                          08543-9011
  (ADDRESS OF PRINCIPAL EXECUTIVE                     (ZIP CODE)
              OFFICES)
 
       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE (609) 282-2800
 
                                 ARTHUR ZEIKEL
                    MERRILL LYNCH CORPORATE BOND FUND, INC.
                                 P.O. BOX 9011
                        PRINCETON, NEW JERSEY 08543-9011
                    (NAME AND ADDRESS OF AGENT FOR SERVICE)
 
                                ----------------
 
                                   COPIES TO:
 
                                              
    PHILIP M. MANDEL, ESQ.                    LEONARD B. MACKEY, JR., ESQ.
    FUND ASSET MANAGEMENT, L.P.                      ROGERS & WELLS
           P.O. BOX 9011                            200 PARK AVENUE
  PRINCETON, NEW JERSEY 08543-9011              NEW YORK, NEW YORK 10166
 
IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)
[X] immediately upon filing pursuant to paragraph (b)
[_] on (date) pursuant to paragraph (b)
[_] 60 days after filing pursuant to paragraph (a)
[_] on (date) pursuant to paragraph (a)(i)
[_] 75 days after filing pursuant to paragraph (a)(ii)
[_] on (date) pursuant to paragraph (a)(ii) of rule 485
IF APPROPRIATE, CHECK THE FOLLOWING BOX:
[_] this post-effective amendment designates a new effective date for a
    previously filed post-effective amendment
 
                                ----------------
          
  TITLE OF SECURITIES BEING REGISTERED CLASS A SHARES, CLASS B SHARES, CLASS C
SHARES AND CLASS D SHARES OF HIGH INCOME PORTFOLIO COMMON STOCK, INVESTMENT
GRADE PORTFOLIO COMMON STOCK AND INTERMEDIATE TERM PORTFOLIO COMMON STOCK.     
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                    MERRILL LYNCH CORPORATE BOND FUND, INC.
 
                             CROSS REFERENCE SHEET
 
                                   FORM N-1A
 
<TABLE>
<CAPTION>
  ITEM                                                  LOCATION
  ----                                                  --------
 <C>    <S>                              <C>
 PART A
   1.   Cover Page....................   Cover Page
   2.   Synopsis......................   Fee Table
   3.   Financial Highlights..........   Financial Highlights; Performance Data
   4.   General Description of           
         Registrant...................   Investment Objectives and Policies;
                                          Investment Policies of the        
                                          Portfolios; Additional Information 
   5.   Management of the Fund........   Fee Table; Investment Adviser;
                                          Directors; Portfolio Transactions;
                                          Additional Information
   5A.  Management's Discussion of
         Fund Performance.............   *
   6.   Capital Stock and Other          
         Securities...................   Cover Page; Dividends, Distributions
                                          and Taxes; Additional Information  
   7.   Purchase of Securities Being     
         Offered......................   Fee Table; Purchase of Shares; Merrill
                                          Lynch Select Pricing SM System;     
                                          Additional Information               
   8.   Redemption or Repurchase......   Fee Table; Redemption of Shares;
                                          Merrill Lynch Select Pricing SM
                                          System; Shareholder Services
  *9.   Pending Legal Proceedings.....   *
 PART B
  10.   Cover Page....................   Cover Page
  11.   Table of Contents.............   Table of Contents
  12.   General Information and
         History......................   Additional Information
  13.   Investment Objectives and        
         Policies.....................   Investment Objectives and Policies;
                                          Investment Restrictions; Portfolio
                                          Transactions                      
  14.   Management of the Fund........   Management of the Fund
 *15.   Control Persons and Principal
         Holders of Securities........   *
  16.   Investment Advisory and Other    
         Services.....................   Management of the Fund; Purchase of
                                          Shares                            
  17.   Brokerage Allocation and Other
         Practices....................   Portfolio Transactions
 *18.   Capital Stock and Other
         Securities...................   *
  19.   Purchase, Redemption and
         Pricing of Securities Being     
         Offered......................   Purchase of Shares; Determination of 
                                          Net Asset Value; Redemption of      
                                          Shares; Systematic Withdrawal Plans;
                                          Retirement Plans; Exchange Privilege;
                                          Additional Information               
  20.   Tax Status....................   Dividends, Distributions and Taxes
  21.   Underwriters..................   Distributor
  22.   Calculation of Performance
         Data.........................   Performance Data
  23.   Financial Statements..........   Financial Statements
</TABLE>
 
PART C
 
  Information required to be included in Part C is set forth under the
appropriate Item, so numbered, in Part C of this Registration Statement.
- --------
* Item inapplicable or answer negative.
<PAGE>
 
PROSPECTUS
   
JANUARY 22, 1998     
 
                    MERRILL LYNCH CORPORATE BOND FUND, INC.
 
   P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011 . PHONE NO. (609) 282-2800
 
                               ----------------
 
  Merrill Lynch Corporate Bond Fund, Inc. (the "Fund") is a professionally
managed, diversified, open-end investment company consisting of three separate
Portfolios. The primary objective of each Portfolio is to provide shareholders
with as high a level of current income as is consistent with the investment
policies of such Portfolio and with prudent investment management. As a
secondary objective, each Portfolio seeks capital appreciation when consistent
with its primary objective. Each Portfolio invests primarily in a diversified
portfolio of corporate fixed-income securities, such as corporate bonds and
notes, convertible securities and preferred stocks. There can be no assurance
that the objectives of any Portfolio will be realized. Each of the Portfolios
pursues its investment objective through the separate investment policies
described below:
   
  High Income Portfolio may invest substantially all of its assets in fixed-
income securities that are rated in the lower rating categories of the
established rating services (Baa or lower by Moody's Investors Service, Inc. or
BBB or lower by Standard & Poor's Ratings Group), or in unrated securities of
comparable quality. Lower rated securities, commonly known as "junk bonds,"
generally involve greater risks, including risk of default, volatility of price
and risks to principal and income, than securities in the higher rating
categories. Investors should consider these risks carefully before investing.
See "Investment Policies of the Portfolios," page 20.     
 
  Investment Grade Portfolio invests primarily in long-term fixed-income
securities rated A or better by either Moody's Investors Service, Inc. or
Standard & Poor's Ratings Group.
                                                   (continued on following page)
 
                               ----------------
 
 THESE SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION NOR  HAS THE SECURITIES AND  EXCHANGE COMMISSION PASSED
   UPON THE ACCURACY  OR ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO
    THE CONTRARY IS A CRIMINAL OFFENSE.
 
                               ----------------
   
  This Prospectus sets forth in concise form the information about the Fund
that is relevant to making an investment in the Fund. This Prospectus should be
retained for future reference. A statement containing additional information
about the Fund dated January 22, 1998 (the "Statement of Additional
Information") has been filed with the Securities and Exchange Commission (the
"Commission") and can be obtained, without charge, by calling or writing the
Fund at the above telephone number or address. The Commission maintains a web
site (http://www.sec.gov) that contains the Statement of Additional
Information, material incorporated by reference and other information about the
Fund. The Statement of Additional Information is incorporated by reference into
this prospectus.     
 
                               ----------------
 
                  FUND ASSET MANAGEMENT -- INVESTMENT ADVISER
 
              MERRILL LYNCH FUNDS DISTRIBUTOR, INC. -- DISTRIBUTOR
<PAGE>
 
(continued from cover page)
 
  Intermediate Term Portfolio invests primarily in fixed-income securities
rated in the four highest rating categories (Baa or higher by Moody's
Investors Service, Inc. or BBB or higher by Standard & Poor's Ratings Group)
with a maximum remaining maturity not to exceed ten years and, depending on
market conditions, an average remaining maturity of five to seven years is
anticipated.
   
  For more information on the Fund's investment objectives and policies,
please see "Investment Objectives and Policies" on page 19.     
 
  Each Portfolio is, in effect, a separate fund issuing its own shares.
Pursuant to the Merrill Lynch Select Pricing SM System, each of the Fund's
Portfolios offers four classes of shares, each with a different combination of
sales charges, ongoing fees and other features. Class C shares of the
Intermediate Term Portfolio are available only through the Exchange Privilege.
The Merrill Lynch Select Pricing SM System permits an investor to choose the
method of purchasing shares that the investor believes is most beneficial
given the amount of the purchase, the length of time the investor expects to
hold the shares and other relevant circumstances. See "Merrill Lynch Select
Pricing SM System" on page 5.
   
  Class A and Class D shares of the Fund's Portfolios may be purchased
directly from Merrill Lynch Funds Distributor, Inc. (the "Distributor"), P.O.
Box 9081, Princeton, New Jersey 08543-9081 (609 282-2800), or from securities
dealers that have entered into selected dealer agreements with the
Distributor, including Merrill Lynch, Pierce, Fenner & Smith Incorporated
("Merrill Lynch"). Class B and Class C shares of the Fund's Portfolios may
only be purchased either directly from the Distributor or Merrill Lynch. See
"Purchase of Shares." The minimum initial purchase for shares of each
Portfolio is $1,000 and the minimum subsequent purchase is $50, except that
for retirement plans the minimum initial purchase is $100 and the minimum
subsequent purchase is $1, and for participants in certain fee-based programs
the minimum initial purchase is $500 and the minimum subsequent purchase is
$50. Merrill Lynch may charge its customers a processing fee (presently $5.35)
for confirming purchases and repurchases. Purchases and redemptions made
directly through Merrill Lynch Financial Data Services, Inc. (the "Transfer
Agent") are not subject to the processing fee. See "Purchase of Shares" and
"Redemption of Shares."     
 
  A shareholder may have his shares redeemed at the net asset value per share
of the Portfolio represented by the redeemed shares.
 
                                       2
<PAGE>
 
                                   FEE TABLE
 
  A general comparison of the sales arrangements and other nonrecurring and
recurring expenses applicable to shares of the Fund follows.
 
<TABLE>   
<CAPTION>
                            HIGH INCOME PORTFOLIO                    INVESTMENT GRADE PORTFOLIO
                    -----------------------------------------   -----------------------------------------
                    CLASS A(a)  CLASS B(b)  CLASS C   CLASS D   CLASS A(a)  CLASS B(b)  CLASS C   CLASS D
                    ----------  ----------  -------   -------   ----------  ----------  -------   -------
<S>                 <C>         <C>         <C>       <C>       <C>         <C>         <C>       <C>
Shareholder Transaction
Expenses:
 Maximum Sales
 Charge Imposed on
 Purchases (as a
 percentage of
 offering price)..    4.00%(c)     None       None     4.00%(c)   4.00%(c)     None       None     4.00%(c)
 Sales Charge
 Imposed on
 Dividend
 Reinvestments....     None        None       None      None       None        None       None      None
 Deferred Sales
 Charge (as a
 percentage of
 original purchase
 price or
 redemption
 proceeds,
 whichever
 is lower)........     None(e)    4.00%(i)   1.00%(j)   None(e)    None(e)    4.00%(i)   1.00%(j)   None(e)
 Exchange Fee.....     None        None       None      None       None        None       None      None
Annual Portfolio
Operating
Expenses:
 Investment
 Adviser Fees(f)..    0.41%       0.41%      0.41%     0.41%      0.36%       0.36%      0.36%     0.36%
 12b-1 Fees(g):
 Account
 Maintenance Fees.     None       0.25%      0.25%     0.25%       None       0.25%      0.25%     0.25%
 Distribution
 Fees.............     None       0.50%(k)   0.55%      None       None       0.50%(k)   0.55%      None
 Other Expenses:
 Shareholder
 Servicing
 Costs(h).........    0.06%       0.07%      0.08%     0.06%      0.17%       0.19%      0.19%     0.17%
 Other Fees.......    0.04%       0.04%      0.03%     0.04%      0.04%       0.04%      0.04%     0.04%
                      -----       -----      -----     -----      -----       -----      -----     -----
  Total Other
  Expenses........    0.10%       0.11%      0.11%     0.10%      0.21%       0.23%      0.23%     0.21%
                      -----       -----      -----     -----      -----       -----      -----     -----
 Total Portfolio
 Operating
 Expenses.........    0.51%       1.27%      1.32%     0.76%      0.57%       1.34%      1.39%     0.82%
                      =====       =====      =====     =====      =====       =====      =====     =====
<CAPTION>
                          INTERMEDIATE TERM PORTFOLIO
                    ---------------------------------------------
                    CLASS A(a)  CLASS B(b)  CLASS C(l)  CLASS D
                    ----------- ----------- ----------- ---------
<S>                 <C>         <C>         <C>         <C>
Shareholder Transaction
Expenses:
 Maximum Sales
 Charge Imposed on
 Purchases (as a
 percentage of
 offering price)..    1.00%(d)     None        None      1.00%(d)
 Sales Charge
 Imposed on
 Dividend
 Reinvestments....     None        None        None       None
 Deferred Sales
 Charge (as a
 percentage of
 original purchase
 price or
 redemption
 proceeds,
 whichever
 is lower)........     None(e)    1.00%(j)    1.00%(j)    None(e)
 Exchange Fee.....     None        None        None       None
Annual Portfolio
Operating
Expenses:
 Investment
 Adviser Fees(f)..    0.36%       0.36%       0.36%      0.36%
 12b-1 Fees(g):
 Account
 Maintenance Fees.     None       0.25%       0.25%      0.10%
 Distribution
 Fees.............     None       0.25%(k)    0.25%       None
 Other Expenses:
 Shareholder
 Servicing
 Costs(h).........    0.24%       0.26%       0.29%      0.25%
 Other Fees.......    0.05%       0.05%       0.05%      0.06%
                      -----       -----       -----      -----
  Total Other
  Expenses........    0.29%       0.31%       0.34%      0.31%
                      -----       -----       -----      -----
 Total Portfolio
 Operating
 Expenses.........    0.65%       1.17%       1.20%      0.77%
                      =====       =====       =====      =====
</TABLE>    
- ----
   
(a) Class A shares are sold to a limited group of investors including existing
    Class A shareholders, certain retirement plans and participants in fee-
    based programs. See "Purchase of Shares--Initial Sales Charge
    Alternatives--Class A and Class D Shares"--page 34 and "Shareholder
    Services--Fee-Based Programs"--page 50.     
(b) Class B shares convert to Class D shares automatically approximately ten
    years after initial purchase. See "Purchase of Shares--Deferred Sales
    Charge Alternatives--Class B and Class C Shares"--page 37.
(c) Reduced for purchases of $25,000 and over, and waived for purchases of
    Class A shares by certain retirement plans and participants in connection
    with certain fee-based programs. Class A or Class D purchases of
    $1,000,000 or more may not be subject to an initial sales charge. See
    "Purchase of Shares--Initial Sales Charge Alternatives--Class A and Class
    D Shares"--page 34.
   
(d) Reduced for purchases of $100,000 and over, and waived for purchases of
    Class A shares by certain retirement plans and participants in connection
    with certain fee-based programs. Class A or Class D purchases of
    $1,000,000 or more may not be subject to an initial sales charge. See
    "Purchase of Shares--Initial Sales Charge Alternatives--Class A and Class
    D Shares"--page 34.     
   
(e) Class A and Class D shares are not subject to a contingent deferred sales
    charge ("CDSC"), except that certain purchases of $1,000,000 or more that
    are not subject to an initial sales charge may instead be subject to a
    CDSC of 1.0% (for High Income Portfolio and Investment Grade Portfolio) or
    0.20% (for Intermediate Term Portfolio) of amounts redeemed within the
    first year after purchase. Such CDSC may be waived in connection with
    certain fee-based programs. See "Shareholder Services--Fee-Based
    Programs"--page 50.     
(f) See "Investment Adviser"--page 29.
   
(g) See "Purchase of Shares--Distribution Plans"--page 42.     
(h) See "Transfer Agency Services"--page 30.
   
(i) Decreasing 1.0% annually thereafter to 0.0% after the fourth year. The
    CDSC may be modified in connection with certain fee-based programs. See
    "Shareholder Services--Fee-Based Programs"--page 50.     
   
(j) Decreasing 1.0% annually thereafter to 0.0% after the first year. The CDSC
    may be waived in connection with certain fee-based programs. See
    "Shareholder Services--Fee-Based Programs"--page 50.     
(k) Class B shares convert to Class D shares automatically after approximately
    ten years and cease being subject to distribution fees.
   
(l) Class C shares of the Intermediate Term Portfolio are available only
    through the Exchange Privilege. See "Shareholder Services--Exchange
    Privilege"--page 52.     
 
                                       3
<PAGE>
 
EXAMPLE:
 
<TABLE>   
<CAPTION>
                                                CUMULATIVE EXPENSES PAID FOR
                                                       THE PERIOD OF:
                                               -------------------------------
                                               1 YEAR 3 YEARS 5 YEARS 10 YEARS
                                               ------ ------- ------- --------
<S>                                            <C>    <C>     <C>     <C>
An investor would pay the following expenses
 on a $1,000 investment including the maximum
 $40 initial sales charge (Class A and Class D
 shares only) assuming (1) the Total Portfolio
 Operating Expenses for each class set forth
 on page 3, (2) a 5% annual return throughout
 the periods and (3) redemption at the end of
 the period (including any applicable CDSC's
 for Class B and Class C shares):
High Income Portfolio
  Class A.....................................  $45     $56     $67     $101
  Class B.....................................  $53     $60     $70     $153
  Class C.....................................  $23     $42     $72     $159
  Class D.....................................  $47     $63     $81     $130
Investment Grade Portfolio
  Class A.....................................  $46     $58     $71     $109
  Class B.....................................  $54     $62     $73     $161
  Class C.....................................  $24     $44     $76     $167
  Class D.....................................  $48     $65     $84     $137
Intermediate Term Portfolio
  Class A.....................................  $17     $31     $46     $ 90
  Class B.....................................  $22     $37     $64     $142
  Class C*....................................  $22     $38     $66     $145
  Class D.....................................  $18     $34     $52     $104
An investor would pay the following expenses
 on the same $1,000 investment assuming no
 redemption at the end of the period:
High Income Portfolio
  Class A.....................................  $45     $56     $67     $101
  Class B.....................................  $13     $40     $70     $153
  Class C.....................................  $13     $42     $72     $159
  Class D.....................................  $47     $63     $81     $130
Investment Grade Portfolio
  Class A.....................................  $46     $58     $71     $109
  Class B.....................................  $14     $42     $73     $161
  Class C.....................................  $14     $44     $76     $167
  Class D.....................................  $48     $65     $84     $137
Intermediate Term Portfolio
  Class A.....................................  $17     $31     $46     $ 90
  Class B.....................................  $12     $37     $64     $142
  Class C*....................................  $12     $38     $66     $145
  Class D.....................................  $18     $34     $52     $104
</TABLE>    
- --------
* Class C shares of the Intermediate Term Portfolio are available only through
  the Exchange Privilege.
 
                                       4
<PAGE>
 
   
  The foregoing Fee Table is intended to assist investors in understanding the
costs and expenses that a shareholder in the Fund will bear directly or
indirectly. The Example set forth above assumes the reinvestment of all
dividends and distributions and utilizes a five percent annual rate of return
as mandated by Securities and Exchange Commission regulations. THE EXAMPLE
SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE EXPENSES OR ANNUAL
RATES OF RETURN OF ANY PORTFOLIO AND ACTUAL EXPENSES OR ANNUAL RATES OF RETURN
MAY BE MORE OR LESS THAN THOSE ASSUMED FOR THE PURPOSE OF THE EXAMPLE. Class B
and Class C shareholders who hold their shares for an extended period of time
may pay more in 12b-1 distribution fees than the economic equivalent of the
maximum front-end sales charges permitted under the Rules of Fair Practice of
the National Association of Securities Dealers, Inc. ("NASD"). Merrill Lynch
may charge its customers a processing fee (presently $5.35) for confirming
purchases and redemptions. Purchases and redemptions effected directly through
the Fund's transfer agent are not subject to the processing fee. See "Purchase
of Shares" and "Redemption of Shares."     
 
                     MERRILL LYNCH SELECT PRICING SM SYSTEM
   
  Each Portfolio of the Fund offers four classes of shares under the Merrill
Lynch Select Pricing SM System. The shares of each class may be purchased at a
price equal to the next determined net asset value per share subject to the
sales charges and ongoing fee arrangements described below. Shares of Class A
and Class D are sold to investors choosing the initial sales charge
alternatives, and shares of Class B and Class C (for the High Income and
Investment Grade Portfolios only) are sold to investors choosing the deferred
sales charge alternatives. Class C shares of the Intermediate Term Portfolio
are offered only through the Exchange Privilege and may not be purchased except
through exchange of Class C shares of another Portfolio or certain other funds.
The Merrill Lynch Select Pricing SM System is used by more than 50 registered
investment companies advised by Merrill Lynch Asset Management, L.P. ("MLAM")
or its affiliate, Fund Asset Management, L.P. ("FAM" or the "Investment
Adviser"). Funds advised by MLAM or FAM that use the Merrill Lynch Select
Pricing System SM are referred to herein as "MLAM-advised mutual funds."     
 
  Each Class A, Class B, Class C or Class D share of each of the Fund's
Portfolios represents an identical interest in the investment portfolio of that
Portfolio and has the same rights, except that Class B, Class C and Class D
shares bear the expenses of the ongoing account maintenance fees and Class B
and Class C shares bear the expenses of the ongoing distribution fees and the
additional incremental transfer agency costs resulting from the deferred sales
charge arrangements. The deferred sales charges, distribution and account
maintenance fees that are imposed on Class B and Class C shares of a Portfolio,
as well as the account maintenance fees that are imposed on the Class D shares
of a Portfolio, will be imposed directly against those classes and not against
all assets of the relevant Portfolio and, accordingly, such charges will not
affect the net asset value of any other class or have any impact on investors
choosing another sales charge option. Dividends paid by a Portfolio for each
class of shares will be calculated in the same manner at the same time and will
differ only to the extent that account maintenance and distribution fees and
any incremental transfer agency costs relating to a particular class are borne
exclusively by that class. Each class has different exchange privileges. See
"Shareholder Services--Exchange Privilege."
   
  Investors should understand that the purpose and function of the initial
sales charges with respect to the Class A and Class D shares are the same as
those of the CDSCs and distribution fees with respect to the Class B and Class
C shares in that the sales charges and distribution fees applicable to each
class provide for     
 
                                       5
<PAGE>
 
the financing of the distribution of the shares of the Fund. The distribution-
related revenues paid with respect to a class will not be used to finance the
distribution expenditures of another class. Sales personnel may receive
different compensation for selling different classes of shares.
 
  The following table sets forth a summary of the distribution arrangements
for each class of shares under the Merrill Lynch Select Pricing SM System,
followed by a more detailed description of each class and a discussion of the
factors that investors should consider in determining the method of purchasing
shares under the Merrill Lynch Select Pricing SM System that the investor
believes is most beneficial under his or her particular circumstances. More
detailed information as to each class of shares is set forth under "Purchase
of Shares."
 
                  HIGH INCOME AND INVESTMENT GRADE PORTFOLIOS
 
 
<TABLE>   
<CAPTION>
                                             ACCOUNT
                                           MAINTENANCE DISTRIBUTION       CONVERSION
  CLASS          SALES CHARGE(/1/)             FEE         FEE             FEATURE
- ------------------------------------------------------------------------------------------
  <S>     <C>                              <C>         <C>          <C>
    A          Maximum 4.00% initial           No           No                No
              sales charge(/2/),(/3/)
- ------------------------------------------------------------------------------------------
    B     CDSC for a period of four years,    0.25%       0.50%      B shares convert to
              at a rate of 4.0% during                              D shares automatically
          the first year, decreasing 1.0%                            after approximately
                  annually to 0.0%(/4/)                                 ten years(/5/)
- ------------------------------------------------------------------------------------------
    C          1.0% CDSC for one year         0.25%       0.55%               No
            decreasing to 0.0% after the
                  first year(/6/)
- ------------------------------------------------------------------------------------------
    D          Maximum 4.00% initial          0.25%         No                No
                 sales charge(/3/)
</TABLE>    
 
- --------
(1) Initial sales charges are imposed at the time of purchase as a percentage
    of the offering price. Contingent deferred sales charges ("CDSCs") are
    imposed if the redemption occurs within the applicable CDSC time period.
    The charge will be assessed on an amount equal to the lesser of the
    proceeds of redemption or the cost of the shares being redeemed.
(2) Offered only to eligible investors. See "Purchase of Shares--Initial Sales
    Charge Alternatives--Class A and Class D Shares--Eligible Class A
    Investors."
   
(3) Reduced for purchases of $25,000 or more and waived for purchases of Class
    A shares by certain retirement plans and participants in connection with
    certain fee-based programs. Class A and Class D share purchases of
    $1,000,000 or more may not be subject to an initial sales charge but, if
    the initial sales charge is waived, may be subject to a 1.0% CDSC if
    redeemed within one year. Such CDSC may be waived in connection with
    certain fee-based programs. A 0.75% sales charge for 401(k) purchases over
    $1,000,000 will apply. See "Class A" and "Class D" below.     
   
(4) The CDSC may be modified in connection with certain fee-based programs.
        
(5) The conversion period for dividend reinvestment shares and the conversion
    and holding periods for certain retirement plans were modified. Also,
    Class B shares of certain other MLAM-advised mutual funds into which
    exchanges may be made have a ten-year conversion period. If Class B shares
    of a Portfolio of the Fund are exchanged for Class B shares of another
    MLAM-advised mutual fund, the conversion period applicable to the Class B
    shares acquired in the exchange will apply, and the holding period for the
    shares exchanged will be tacked onto the holding period for the shares
    acquired.
   
(6) The CDSC may be waived in connection with certain fee-based programs.     
 
                                       6
<PAGE>
 
                          INTERMEDIATE TERM PORTFOLIO
 
 
<TABLE>
<CAPTION>
                                           ACCOUNT
                                         MAINTENANCE DISTRIBUTION       CONVERSION
  CLASS         SALES CHARGE(/1/)            FEE         FEE             FEATURE
- ----------------------------------------------------------------------------------------
  <S>     <C>                            <C>         <C>          <C>
    A         Maximum 1.00% initial          No           No                No
             sales charge(/2/),(/3/)
- ----------------------------------------------------------------------------------------
    B      CDSC for one year, at a rate     0.25%       0.25%      B shares convert to
             of 1.0% during the first                             D shares automatically
          year, decreasing to 0.0% after                           after approximately
               the first year(/4/)                                    ten years(/5/)
- ----------------------------------------------------------------------------------------
    C         1.0% CDSC for one year        0.25%       0.25%               No
           decreasing to 0.0% after the
                 first year(/6/)
- ----------------------------------------------------------------------------------------
    D         Maximum 1.00% initial         0.10%         No                No
                sales charge(/3/)
</TABLE>
 
- --------
(1) Initial sales charges are imposed at the time of purchase as a percentage
    of the offering price. Contingent deferred sales charges ("CDSCs") are
    imposed if the redemption occurs within the applicable CDSC time period.
    The charge will be assessed on an amount equal to the lesser of the
    proceeds of redemption or the cost of the shares being redeemed.
(2) Offered only to eligible investors. See "Purchase of Shares--Initial Sales
    Charge Alternatives--Class A and Class D Shares--Eligible Class A
    Investors."
   
(3) Reduced for purchases of $100,000 or more and waived for purchases of Class
    A shares by certain retirement plans and participants in connection with
    certain fee-based programs. Class A and Class D share purchases of
    $1,000,000 or more may not be subject to an initial sales charge but, if
    the initial sales charge is waived, may be subject to a 0.20% CDSC if
    redeemed within one year. A 0.30% sales charge for 401(k) purchases over
    $1,000,000 will apply. See "Class A" and "Class D" below.     
   
(4) The CDSC may be modified in connection with certain fee-based programs.
        
(5) The conversion period for dividend reinvestment shares and the conversion
    and holding periods for certain retirement plans were modified. Also, Class
    B shares of certain other MLAM-advised mutual funds into which exchanges
    may be made have a ten-year conversion period. If Class B shares of a
    Portfolio of the Fund are exchanged for Class B shares of another MLAM-
    advised mutual fund, the conversion period applicable to the Class B shares
    acquired in the exchange will apply, and the holding period for the shares
    exchanged will be tacked onto the holding period for the shares acquired.
   
(6) The CDSC may be waived in connection with certain fee-based programs.     
   
Class A: Class A shares of a Portfolio incur an initial sales charge when they
         are purchased and bear no ongoing distribution or account maintenance
         fees. Class A shares of a Portfolio are offered to a limited group of
         investors and also will be issued upon reinvestment of dividends on
         outstanding Class A shares. Investors who currently own Class A shares
         of a Portfolio in a shareholder account are entitled to purchase
         additional Class A shares of that Portfolio in that account. Other
         eligible investors include certain retirement plans and participants
         in certain fee-based programs. In addition, Class A shares will be
         offered at net asset value to directors and employees of Merrill Lynch
         & Co., Inc. ("ML & Co.") and its subsidiaries (the term
         "subsidiaries," when used herein with respect to ML & Co., includes
         MLAM, FAM and certain other entities directly or indirectly wholly
         owned and controlled by ML & Co.) and to members of the Boards of
         MLAM-advised mutual funds. The maximum initial sales charge of 4.00%
         for the High Income and Investment Grade Portfolios and 1.00% for the
         Intermediate Term Portfolio, is reduced for purchases of $25,000 and
         over, and waived for purchases of Class A shares by certain retirement
         plans and participants in connection with certain fee-based programs,
         for the High Income and Investment     
 
                                       7
<PAGE>
 
         
      Grade Portfolios or $100,000 for the Intermediate Term Portfolio.
      Purchases of $1,000,000 or more may not be subject to an initial sales
      charge but if the initial sales charge is waived such purchases may be
      subject to a contingent deferred sales charge ("CDSC") of 1.0% for the
      High Income and Investment Grade Portfolios or 0.20% for the Intermediate
      Term Portfolio, if the shares are redeemed within one year after
      purchase. Such CDSC may be waived in connection with certain fee-based
      programs. Sales charges also are reduced under a right of accumulation
      that takes into account the investor's holdings of all classes of all
      MLAM-advised mutual funds. See "Purchase of Shares--Initial Sales Charge
      Alternatives--Class A and Class D Shares."     
   
Class B: Class B shares of a Portfolio do not incur a sales charge when they
         are purchased, but they are subject to an ongoing account maintenance
         fee of 0.25% of the Portfolio's average net assets attributable to
         Class B shares, an ongoing distribution fee of 0.50% of average net
         assets attributable to Class B shares for the High Income and
         Investment Grade Portfolios, or 0.25% of average net assets
         attributable to Class B shares for the Intermediate Term Portfolio and
         a CDSC if they are redeemed within four years of purchase for the High
         Income and Investment Grade Portfolios or within one year of purchase
         for the Intermediate Term Portfolio. Such CDSC may be modified in
         connection with certain fee-based programs. Approximately ten years
         after issuance, Class B shares of a Portfolio will convert
         automatically into Class D shares of that Portfolio, which are subject
         to an account maintenance fee but no distribution fee; Class B shares
         of certain other MLAM-advised mutual funds into which exchanges may be
         made convert into Class D shares automatically after approximately
         eight years. If Class B shares of a Portfolio are exchanged for Class
         B shares of another MLAM-advised mutual fund, the conversion period
         applicable to the Class B shares acquired in the exchange will apply,
         and the holding period for the shares exchanged will be tacked onto
         the holding period for the shares acquired. Automatic conversion of
         Class B shares into Class D shares will occur at least once a month on
         the basis of the relative net asset values of the shares of the two
         classes on the conversion date, without the imposition of any sales
         load, fee or other charge. Conversion of Class B shares to Class D
         shares will not be deemed a purchase or sale of the shares for Federal
         income tax purposes. Shares purchased through reinvestment of
         dividends on Class B shares also will convert automatically to Class D
         shares. The conversion period for dividend reinvestment shares and the
         conversion and holding periods for certain retirement plans is
         modified as described under "Purchase of Shares--Deferred Sales Charge
         Alternatives--Class B and Class C Shares--Conversion of Class B Shares
         to Class D Shares."     
   
Class C: Class C shares of a Portfolio do not incur a sales charge when they
         are purchased, but they are subject to an ongoing account maintenance
         fee of 0.25% of average net assets and an ongoing distribution fee of
         0.55% of average net assets for the High Income and Investment Grade
         Portfolios or 0.25% of average net assets for the Intermediate Term
         Portfolio. Class C shares are also subject to a 1.0% CDSC if they are
         redeemed within one year of purchase. Such CDSC may be waived in
         connection with certain fee-based programs. Although Class C shares
         are subject to a CDSC for only one year (as compared to four years for
         Class B shares of the High Income and Investment Grade Portfolios and
         one year for the Intermediate Term Portfolio), Class C shares have no
         conversion feature and, accordingly, an investor who purchases Class C
         shares will be subject to distribution fees that will be imposed on
         Class C shares for an indefinite period subject to annual approval by
         the Fund's Board of Directors and regulatory limitations. Class C
         shares of the Intermediate Term Portfolio are available only through
         the Exchange Privilege.     
 
                                       8
<PAGE>
 
   
Class D: Class D shares of a Portfolio incur an initial sales charge when they
         are purchased and are subject to an ongoing account maintenance fee
         of 0.25% of average net assets for the High Income and Investment
         Grade Portfolios and 0.10% of average net assets for the Intermediate
         Term Portfolio. Class D shares are not subject to an ongoing
         distribution fee or any CDSC when they are redeemed. The maximum
         initial sales charge of 1.00% is reduced for purchases of $25,000 and
         over, for the High Income and Investment Grade Portfolio's or
         $100,000 for the Intermediate Term Portfolio. Purchases of $1,000,000
         or more may not be subject to an initial sales charge but if the
         initial sales charge is waived such purchases may be subject to a
         CDSC of 1.0% for the High Income and Investment Grade Portfolios or
         0.20% for the Intermediate Term Portfolio, if the shares are redeemed
         within one year of purchase. Such CDSC may be waived in connection
         with certain fee-based programs. The schedule of initial sales
         charges and reductions for Class D shares is the same as the schedule
         for Class A shares, except that there is no waiver for purchases in
         connection with certain fee-based programs. Class D shares also will
         be issued upon conversion of Class B shares as described above under
         "Class B." See "Purchase of Shares--Initial Sales Charge
         Alternatives--Class A and Class D Shares."     
 
  The following is a discussion of the factors that investors should consider
in determining the method of purchasing shares under the Merrill Lynch Select
Pricing SM System that the investor believes is most beneficial under his or
her particular circumstances.
 
  Initial Sales Charge Alternatives. Investors who prefer an initial sales
charge alternative may elect to purchase Class D shares or, if an eligible
investor, Class A shares. Investors choosing the initial sales charge
alternative who are eligible to purchase Class A shares should purchase Class
A shares rather than Class D shares because of the account maintenance fee
imposed on Class D shares. Investors qualifying for significantly reduced
initial sales charges may find the initial sales charge alternative
particularly attractive because similar sales charge reductions are not
available with respect to the deferred sales charges imposed in connection
with purchases of Class B or Class C shares. Investors not qualifying for
reduced initial sales charges who expect to maintain their investment for an
extended period of time also may elect to purchase Class A or Class D shares,
because over time the accumulated ongoing account maintenance and distribution
fees on Class B or Class C shares may exceed the initial sales charge and, in
the case of Class D shares, the account maintenance fee. Although some
investors who previously purchased Class A shares may no longer be eligible to
purchase Class A shares of other MLAM-advised mutual funds, those previously
purchased Class A shares, together with Class B, Class C and Class D share
holdings, will count toward a right of accumulation which may qualify the
investor for reduced initial sales charges on new initial sales charge
purchases. In addition, the ongoing Class B and Class C account maintenance
and distribution fees will cause Class B and Class C shares to have higher
expense ratios, pay lower dividends and have lower total returns than the
initial sales charge shares. The ongoing Class D account maintenance fees will
cause Class D shares to have a higher expense ratio, pay lower dividends and
have a lower total return than Class A shares.
 
  Deferred Sales Charge Alternatives. Because no initial sales charges are
deducted at the time of purchase, Class B and Class C shares provide the
benefit of putting all of the investor's dollars to work from the time the
investment is made. The deferred sales charge alternatives may be particularly
appealing to investors who do not qualify for a reduction in initial sales
charges. Both Class B and Class C shares are subject to ongoing account
maintenance fees and distribution fees; however, the ongoing account
maintenance and distribution fees potentially may be offset to the extent any
return is realized on the additional funds
 
                                       9
<PAGE>
 
initially invested in Class B or Class C shares. In addition, Class B shares of
a Portfolio will be converted into Class D shares of that Portfolio after a
conversion period of approximately ten years, and thereafter investors will be
subject to lower ongoing fees.
   
  Certain investors may elect to purchase Class B shares if they determine it
to be most advantageous to have all their funds invested initially and intend
to hold their shares for an extended period of time. Investors in Class B
shares should take into account whether they intend to redeem their shares
within the CDSC period and, if not, whether they intend to remain invested
until the end of the conversion period and thereby take advantage of the
reduction in ongoing fees resulting from the conversion into Class D shares.
Other investors, however, may elect to purchase Class C shares if they
determine that it is advantageous to have all their assets invested initially
and they are uncertain as to the length of time they intend to hold their
assets in MLAM-advised mutual funds. Although Class C shareholders are subject
to a shorter CDSC period at a lower rate, they forgo the Class B conversion
feature, making their investment subject to account maintenance and
distribution fees for an indefinite period of time. In addition, while both
Class B and Class C distribution fees are subject to the limitations on asset-
based sales charges imposed by the National Association of Securities Dealers,
Inc. ("NASD"), the Class B distribution fees are further limited under a
voluntary waiver of asset-based sales charges. See "Purchase of Shares--
Limitations on the Payment of Deferred Sales Charges."     
 
                                       10
<PAGE>
 
                             FINANCIAL HIGHLIGHTS
   
  The financial information in the table below, in connection with shares of
the High Income Portfolio, Investment Grade Portfolio and the Intermediate
Term Portfolio has been audited in conjunction with the annual audits of the
financial statements of the Portfolios by Deloitte & Touche LLP, independent
auditors. Financial statements for the fiscal year ended September 30, 1997,
and the independent auditors' report thereon, are included in the Statement of
Additional Information. Further information about the performance of each
Portfolio is contained in the Fund's Annual Report, which can be obtained,
without charge, upon request.     
 
                             HIGH INCOME PORTFOLIO
 
<TABLE>   
<CAPTION>
 THE FOLLOWING
 PER SHARE DATA                                                      CLASS A
 AND RATIOS HAVE           -----------------------------------------------------------------------------------------------------
 BEEN DERIVED
 FROM INFORMATION
 PROVIDED IN THE
 FINANCIAL                                              FOR THE YEAR ENDED SEPTEMBER 30,
 STATEMENTS.               -----------------------------------------------------------------------------------------------------
                             1997+      1996+       1995      1994      1993      1992      1991      1990      1989      1988
                           ----------  --------   --------  --------  --------  --------  --------  --------  --------  --------
 <S>                       <C>         <C>        <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>
 INCREASE (DECREASE) IN
  NET ASSET VALUE:
 PER SHARE OPERATING
  PERFORMANCE:
 Net asset value,
  beginning of year.....   $     7.93  $   7.80   $   7.66  $   8.13  $   7.84  $   7.02  $   6.39  $   7.52  $   7.90  $   8.05
                           ----------  --------   --------  --------  --------  --------  --------  --------  --------  --------
 Investment income--net.          .74       .75        .81       .75       .79       .87       .92      1.00       .95       .96
 Realized and unrealized
  gain (loss) on
  investments--net......          .36       .14        .14      (.47)      .29       .82       .63     (1.13)     (.37)     (.15)
                           ----------  --------   --------  --------  --------  --------  --------  --------  --------  --------
 Total from investment
  operations............         1.10       .89        .95       .28      1.08      1.69      1.55      (.13)      .58       .81
                           ----------  --------   --------  --------  --------  --------  --------  --------  --------  --------
 Less dividends and
  distributions:
 Investment income--net.         (.74)     (.76)      (.81)     (.75)     (.79)     (.87)     (.92)    (1.00)     (.96)     (.96)
 In excess of investment
  income--net...........          --        -- **      --        --        --        --        --        --        --        --
                           ----------  --------   --------  --------  --------  --------  --------  --------  --------  --------
 Total dividends and
  distributions.........         (.74)     (.76)      (.81)     (.75)     (.79)     (.87)     (.92)    (1.00)     (.96)     (.96)
                           ----------  --------   --------  --------  --------  --------  --------  --------  --------  --------
 Net asset value, end of
  year..................   $     8.29  $   7.93   $   7.80  $   7.66  $   8.13  $   7.84  $   7.02  $   6.39  $   7.52  $   7.90
                           ==========  ========   ========  ========  ========  ========  ========  ========  ========  ========
 TOTAL INVESTMENT
  RETURN:*
 Based on net asset
  value per share.......       14.58%    11.95%     13.27%     3.42%    14.35%    25.22%    26.46%    (1.95%)    7.69%    10.82%
                           ==========  ========   ========  ========  ========  ========  ========  ========  ========  ========
 RATIOS TO AVERAGE NET
  ASSETS:
 Expenses...............         .51%      .51%       .55%      .53%      .55%      .59%      .66%      .68%      .66%      .64%
                           ==========  ========   ========  ========  ========  ========  ========  ========  ========  ========
 Investment income--net.        9.23%     9.57%     10.70%     9.27%     9.78%    11.44%    14.13%    14.22%    12.30%    12.33%
                           ==========  ========   ========  ========  ========  ========  ========  ========  ========  ========
 SUPPLEMENTAL DATA:
 Net assets, end of year
  (in thousands)........   $1,044,799  $947,479   $902,321  $876,573  $886,784  $683,801  $522,703  $486,426  $641,619  $759,403
                           ==========  ========   ========  ========  ========  ========  ========  ========  ========  ========
 Portfolio turnover.....       38.58%    32.44%     24.58%    32.52%    34.85%    40.52%    39.95%    47.60%    56.00%    38.99%
                           ==========  ========   ========  ========  ========  ========  ========  ========  ========  ========
</TABLE>    
- --------
 * Total investment returns exclude the effects of sales loads.
** Amount is less than $.01 per share.
 + Based on average shares outstanding during the year.
 
                                      11
<PAGE>
 
                      FINANCIAL HIGHLIGHTS -- (CONTINUED)
 
                             HIGH INCOME PORTFOLIO
 
<TABLE>   
<CAPTION>
 THE FOLLOWING
 PER SHARE DATA                                                      CLASS B
 AND RATIOS HAVE           ----------------------------------------------------------------------------------------------------
 BEEN DERIVED                                                                                                          FOR THE
 FROM INFORMATION                                                                                                      PERIOD
 PROVIDED IN THE                                                                                                      OCT. 21,
 FINANCIAL                                         FOR THE YEAR ENDED SEPTEMBER 30,                                   1988+ TO
 STATEMENTS.               -----------------------------------------------------------------------------------------  SEPT. 30,
                             1997++      1996++        1995        1994        1993       1992      1991      1990      1989
                           ----------  ----------   ----------  ----------  ----------  --------  --------  --------  ---------
 <S>                       <C>         <C>          <C>         <C>         <C>         <C>       <C>       <C>       <C>
 INCREASE (DECREASE) IN
  NET ASSET VALUE:
 PER SHARE OPERATING
  PERFORMANCE:
 Net asset value,
  beginning of period....  $     7.93  $     7.80   $     7.66  $     8.13  $     7.85  $   7.02  $   6.40  $   7.52  $   7.92
                           ----------  ----------   ----------  ----------  ----------  --------  --------  --------  --------
 Investment income--net..         .68         .69          .75         .69         .72       .81       .87       .95       .86
 Realized and unrealized
  gain (loss) on
  investments--net.......         .37         .15          .14        (.47)        .28       .83       .62     (1.12)     (.40)
                           ----------  ----------   ----------  ----------  ----------  --------  --------  --------  --------
 Total from investment
  operations.............        1.05         .84          .89         .22        1.00      1.64      1.49      (.17)      .46
                           ----------  ----------   ----------  ----------  ----------  --------  --------  --------  --------
 Less dividends and
  distributions:
 Investment income--net..        (.68)       (.71)        (.75)       (.69)       (.72)     (.81)     (.87)     (.95)     (.86)
 In excess of investment
  income--net............         --          -- ##        --          --          --        --        --        --        --
                           ----------  ----------   ----------  ----------  ----------  --------  --------  --------  --------
 Total dividends and
  distributions..........        (.68)       (.71)        (.75)       (.69)       (.72)     (.81)     (.87)     (.95)     (.86)
                           ----------  ----------   ----------  ----------  ----------  --------  --------  --------  --------
 Net asset value, end of
  period.................  $     8.30  $     7.93   $     7.80  $     7.66  $     8.13  $   7.85  $   7.02  $   6.40  $   7.52
                           ==========  ==========   ==========  ==========  ==========  ========  ========  ========  ========
 TOTAL INVESTMENT
  RETURN:**
 Based on net asset value
  per share..............      13.86%      11.11%       12.41%       2.66%      13.35%    24.44%    25.32%    (2.54%)    6.08%#
                           ==========  ==========   ==========  ==========  ==========  ========  ========  ========  ========
 RATIOS TO AVERAGE NET
  ASSETS:
 Expenses................       1.27%       1.28%        1.32%       1.29%       1.31%     1.35%     1.42%     1.45%     1.45%*
                           ==========  ==========   ==========  ==========  ==========  ========  ========  ========  ========
 Investment income--net..       8.46%       8.80%        9.81%       8.53%       8.94%    10.42%    13.24%    13.69%    11.75%*
                           ==========  ==========   ==========  ==========  ==========  ========  ========  ========  ========
 SUPPLEMENTAL DATA:
 Net assets, end of
  period (in thousands)..  $5,495,488  $4,250,539   $3,220,767  $2,347,223  $1,823,275  $847,354  $264,486  $157,979  $120,969
                           ==========  ==========   ==========  ==========  ==========  ========  ========  ========  ========
 Portfolio turnover......      38.58%      32.44%       24.58%      32.52%      34.85%    40.52%    39.95%    47.60%    56.00%
                           ==========  ==========   ==========  ==========  ==========  ========  ========  ========  ========
</TABLE>    
- --------
 * Annualized.
** Total investment returns exclude the effects of sales loads.
 + Commencement of operations.
++ Based on average shares outstanding during the year.
 # Aggregate total investment return.
## Amount is less than $.01 per share.
 
                                       12
<PAGE>
 
                      FINANCIAL HIGHLIGHTS -- (CONTINUED)
 
                             HIGH INCOME PORTFOLIO
 
<TABLE>   
<CAPTION>
 THE FOLLOWING
 PER SHARE DATA
 AND RATIOS HAVE                       CLASS C                             CLASS D
 BEEN DERIVED              ----------------------------------- -----------------------------------
 FROM INFORMATION            FOR THE YEAR       FOR THE PERIOD   FOR THE YEAR       FOR THE PERIOD
 PROVIDED IN THE                 ENDED           OCTOBER 21,         ENDED           OCTOBER 21,
 FINANCIAL                   SEPTEMBER 30,         1994+TO       SEPTEMBER 30,         1994+TO
 STATEMENTS.               ------------------   SEPTEMBER 30,  ------------------   SEPTEMBER 30,
                            1997++    1996++         1995       1997++    1996++         1995
                           --------  --------   -------------- --------  --------   --------------
 <S>                       <C>       <C>        <C>            <C>       <C>        <C>
 INCREASE (DECREASE) IN
  NET ASSET VALUE:
 PER SHARE OPERATING
  PERFORMANCE:
 Net asset value,
  beginning of period....  $   7.94  $   7.81      $   7.59    $   7.94  $   7.80      $   7.59
                           --------  --------      --------    --------  --------      --------
 Investment income--net..       .68       .68           .71         .72       .72           .75
 Realized and unrealized
  gain on investments--
  net....................       .36       .15           .22         .36       .16           .21
                           --------  --------      --------    --------  --------      --------
 Total from investment
  operations.............      1.04       .83           .93        1.08       .88           .96
                           --------  --------      --------    --------  --------      --------
 Less dividends and
  distributions:
 Investment income--net..      (.68)     (.70)         (.71)       (.72)     (.74)         (.75)
 In excess of investment
 income--net.............       --        -- ##         --          --        -- ##         --
                           --------  --------      --------    --------  --------      --------
 Total dividends and
  distributions..........      (.68)     (.70)         (.71)       (.72)     (.74)         (.75)
                           --------  --------      --------    --------  --------      --------
 Net asset value, end of
  period.................  $   8.30  $   7.94      $   7.81    $   8.30  $   7.94      $   7.80
                           ========  ========      ========    ========  ========      ========
 TOTAL INVESTMENT
  RETURN:**
 Based on net asset value
  per share..............    13.66%    11.05%        12.92%#     14.29%    11.82%        13.37%#
                           ========  ========      ========    ========  ========      ========
 RATIOS TO AVERAGE NET
  ASSETS:
 Expenses................     1.32%     1.33%         1.38%*       .76%      .76%          .81%*
                           ========  ========      ========    ========  ========      ========
 Investment income--net..     8.39%     8.73%         9.06%*      8.95%     9.30%         9.70%*
                           ========  ========      ========    ========  ========      ========
 SUPPLEMENTAL DATA:
 Net assets, end of
  period (in thousands)..  $638,626  $362,518      $135,019    $496,836  $267,687      $102,676
                           ========  ========      ========    ========  ========      ========
 Portfolio turnover......    38.58%    32.44%        24.58%      38.58%    32.44%        24.58%
                           ========  ========      ========    ========  ========      ========
</TABLE>    
- --------
 * Annualized.
** Total investment returns exclude the effects of sales loads.
 + Commencement of operations.
++ Based on average shares outstanding during the period.
#  Aggregate total investment return.
## Amount is less than $.01 per share.
 
                                       13
<PAGE>
 
                      FINANCIAL HIGHLIGHTS -- (CONTINUED)
 
                           INVESTMENT GRADE PORTFOLIO
 
<TABLE>   
<CAPTION>
THE FOLLOWING
PER SHARE DATA
AND RATIOS HAVE                                                     CLASS A
BEEN DERIVED             -------------------------------------------------------------------------------------------------------
FROM INFORMATION
PROVIDED IN THE
FINANCIAL                                              FOR THE YEAR ENDED SEPTEMBER 30,
STATEMENTS.              -------------------------------------------------------------------------------------------------------
                           1997      1996      1995      1994      1993      1992      1991      1990      1989      1988
                         --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
<S>                      <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>
INCREASE (DECREASE) IN
 NET
 ASSET VALUE:
PER SHARE OPERATING
 PERFORMANCE:
Net asset value,
 beginning of year.....  $  11.16  $  11.51  $  10.77  $  12.81  $  12.30  $  11.59  $  10.83  $  11.21  $  11.04  $  10.61
                         --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
Investment income--net.       .76       .76       .80       .75       .81       .88       .92       .95      1.00       .99
Realized and unrealized
 gain (loss) on
 investments--net......       .24      (.35)      .74     (1.49)      .67       .71       .76      (.38)      .17       .43
                         --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
Total from investment
 operations............      1.00       .41      1.54      (.74)     1.48      1.59      1.68       .57      1.17      1.42
                         --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
Less dividends and
 distributions:
 Investment income--
  net..................      (.76)     (.76)     (.80)     (.75)     (.81)     (.88)     (.92)     (.95)    (1.00)     (.99)
 Realized gain on
  investments--net.....       --        --        --       (.10)     (.16)      --        --        --        --        --
 In excess of realized
  gain on investments--
  net..................       --        --        --       (.45)      --        --        --        --        --        --
                         --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
Total dividends and
 distributions.........      (.76)     (.76)     (.80)    (1.30)     (.97)     (.88)     (.92)     (.95)    (1.00)     (.99)
                         --------  --------  --------  --------  --------  --------  --------  --------  --------  --------
Net asset value, end of
 year..................  $  11.40  $  11.16  $  11.51  $  10.77  $  12.81  $  12.30  $  11.59  $  10.83  $  11.21  $  11.04
                         ========  ========  ========  ========  ========  ========  ========  ========  ========  ========
TOTAL INVESTMENT
 RETURN:*
Based on net asset
 value per share.......     9.22%     3.60%    14.93%    (6.03%)   12.76%    14.30%    16.18%     5.22%    11.11%    13.75%
                         ========  ========  ========  ========  ========  ========  ========  ========  ========  ========
RATIOS TO AVERAGE NET
 ASSETS:
Expenses...............      .57%      .56%      .58%      .53%      .56%      .58%      .61%      .64%      .66%      .60%
                         ========  ========  ========  ========  ========  ========  ========  ========  ========  ========
Investment income--net.     6.73%     6.64%     7.30%     6.61%     6.94%     7.43%     8.26%     8.54%     9.04%     9.02%
                         ========  ========  ========  ========  ========  ========  ========  ========  ========  ========
SUPPLEMENTAL DATA:
Net assets, end of year
 (in thousands)........  $519,708  $608,901  $472,388  $366,792  $407,625  $362,139  $324,818  $307,723  $289,804  $258,435
                         ========  ========  ========  ========  ========  ========  ========  ========  ========  ========
Portfolio turnover.....   113.46%    88.53%   108.07%   159.05%   121.34%    65.43%   126.32%   126.39%   212.85%   174.99%
                         ========  ========  ========  ========  ========  ========  ========  ========  ========  ========
</TABLE>    
- --------
 * Total investment returns exclude the effects of sales loads.
 
                                       14
<PAGE>
 
                      FINANCIAL HIGHLIGHTS -- (CONTINUED)
 
                           INVESTMENT GRADE PORTFOLIO
 
<TABLE>   
<CAPTION>
THE FOLLOWING
PER SHARE DATA                                                   CLASS B
AND RATIOS HAVE           ---------------------------------------------------------------------------------------------
BEEN DERIVED                                                                                                 FOR THE
FROM INFORMATION                                                                                             PERIOD
PROVIDED IN THE                                                                                            OCTOBER 21,
FINANCIAL                                    FOR THE YEAR ENDED SEPTEMBER 30,                               1988+ TO
STATEMENTS.               ------------------------------------------------------------------------------  SEPTEMBER 30,
                            1997      1996      1995      1994      1993      1992      1991      1990        1989
                          --------  --------  --------  --------  --------  --------  --------  --------  -------------
<S>                       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>
INCREASE (DECREASE) IN
 NET ASSET VALUE:
PER SHARE OPERATING
 PERFORMANCE:
Net asset value,
 beginning of period....  $  11.16  $  11.51  $  10.77  $  12.81  $  12.30  $  11.59  $  10.83  $  11.21     $ 11.08
                          --------  --------  --------  --------  --------  --------  --------  --------     -------
Investment income--net..       .67       .67       .72       .66       .72       .79       .84       .86         .87
Realized and unrealized
 gain (loss) on
 investments--net.......       .24      (.35)      .74     (1.49)      .67       .71       .76      (.38)        .13
                          --------  --------  --------  --------  --------  --------  --------  --------     -------
Total from investment
 operations.............       .91       .32      1.46      (.83)     1.39      1.50      1.60       .48        1.00
                          --------  --------  --------  --------  --------  --------  --------  --------     -------
Less dividends and
 distributions:
 Investment income--net.      (.67)     (.67)     (.72)     (.66)     (.72)     (.79)     (.84)     (.86)       (.87)
 Realized gain on
  investments--net......       --        --        --       (.10)     (.16)      --        --        --          --
 In excess of realized
  gain on investments--
  net...................       --        --        --       (.45)      --        --        --        --          --
                          --------  --------  --------  --------  --------  --------  --------  --------     -------
Total dividends and
 distributions..........      (.67)     (.67)     (.72)    (1.21)     (.88)     (.79)     (.84)     (.86)       (.87)
                          --------  --------  --------  --------  --------  --------  --------  --------     -------
Net asset value, end of
 period.................  $  11.40  $  11.16  $  11.51  $  10.77  $  12.81  $  12.30  $  11.59  $  10.83     $ 11.21
                          ========  ========  ========  ========  ========  ========  ========  ========     =======
TOTAL INVESTMENT
 RETURN:**
Based on net asset value
 per share..............     8.39%     2.81%    14.04%    (6.73%)   11.91%    13.44%    15.30%     4.42%       9.44%#
                          ========  ========  ========  ========  ========  ========  ========  ========     =======
RATIOS TO AVERAGE NET
 ASSETS:
Expenses................     1.34%     1.32%     1.35%     1.29%     1.29%     1.34%     1.37%     1.41%       1.45%*
                          ========  ========  ========  ========  ========  ========  ========  ========     =======
Investment income--net..     5.96%     5.88%     6.52%     5.85%     5.80%     6.65%     7.50%     7.77%       8.17%*
                          ========  ========  ========  ========  ========  ========  ========  ========     =======
SUPPLEMENTAL DATA:
Net assets, end of
 period (in thousands)..  $577,989  $724,089  $631,517  $483,053  $515,402  $325,706  $198,504  $174,914     $91,914
                          ========  ========  ========  ========  ========  ========  ========  ========     =======
Portfolio turnover......   113.46%    88.53%   108.07%   159.05%   121.34%    65.43%   126.32%   126.39%     212.85%
                          ========  ========  ========  ========  ========  ========  ========  ========     =======
</TABLE>    
- --------
 * Annualized.
** Total investment returns exclude the effects of sales loads.
 + Commencement of operations.
# Aggregate total investment return.
 
                                       15
<PAGE>
 
                      FINANCIAL HIGHLIGHTS -- (CONTINUED)
 
                           INVESTMENT GRADE PORTFOLIO
 
<TABLE>   
<CAPTION>
THE FOLLOWING
PER SHARE DATA
AND RATIOS HAVE                      CLASS C                          CLASS D
BEEN DERIVED              -------------------------------- --------------------------------
FROM INFORMATION           FOR THE YEAR     FOR THE PERIOD  FOR THE YEAR     FOR THE PERIOD
PROVIDED IN THE                ENDED         OCTOBER 21,        ENDED         OCTOBER 21,
FINANCIAL                  SEPTEMBER 30,       1994+ TO     SEPTEMBER 30,       1994+ TO
STATEMENTS.               ----------------  SEPTEMBER 30,  ----------------  SEPTEMBER 30,
                           1997     1996         1995       1997     1996         1995
                          -------  -------  -------------- -------  -------  --------------
<S>                       <C>      <C>      <C>            <C>      <C>      <C>
INCREASE (DECREASE) IN
 NET ASSET VALUE:
PER SHARE OPERATING
 PERFORMANCE:
Net asset value,
 beginning of period....  $ 11.17  $ 11.51     $ 10.67     $ 11.17  $ 11.51     $ 10.67
                          -------  -------     -------     -------  -------     -------
Investment income--net..      .67      .66         .67         .73      .73         .73
Realized and unrealized
 gain (loss) on
 investments--net.......      .23     (.34)        .84         .24     (.34)        .84
                          -------  -------     -------     -------  -------     -------
Total from investment
 operations.............      .90      .32        1.51         .97      .39        1.57
                          -------  -------     -------     -------  -------     -------
Less dividends from
 investment income--net.     (.67)    (.66)       (.67)       (.73)    (.73)       (.73)
                          -------  -------     -------     -------  -------     -------
Net asset value, end of
 period.................  $ 11.40  $ 11.17     $ 11.51     $ 11.41  $ 11.17     $ 11.51
                          =======  =======     =======     =======  =======     =======
TOTAL INVESTMENT
 RETURN:**
Based on net asset value
 per share..............    8.23%    2.85%      14.60%#      8.95%    3.43%      15.22%#
                          =======  =======     =======     =======  =======     =======
RATIOS TO AVERAGE NET
 ASSETS:
Expenses................    1.39%    1.38%       1.40%*       .82%     .81%        .83%*
                          =======  =======     =======     =======  =======     =======
Investment income--net..    5.91%    5.83%       6.27%*      6.47%    6.40%       6.91%*
                          =======  =======     =======     =======  =======     =======
SUPPLEMENTAL DATA:
Net assets, end of
 period (in thousands)..  $49,918  $64,931     $25,778     $77,398  $63,822     $25,153
                          =======  =======     =======     =======  =======     =======
Portfolio turnover......  113.46%   88.53%     108.07%     113.46%   88.53%     108.07%
                          =======  =======     =======     =======  =======     =======
</TABLE>    
- --------
 * Annualized.
** Total investment returns exclude the effects of sales loads.
+ Commencement of operations.
# Aggregate total investment return.
 
                                       16
<PAGE>
 
                      FINANCIAL HIGHLIGHTS -- (CONTINUED)
 
                          INTERMEDIATE TERM PORTFOLIO
 
<TABLE>   
<CAPTION>
THE FOLLOWING
PER SHARE DATA
AND RATIOS HAVE
BEEN DERIVED
FROM INFORMATION                                                 CLASS A
PROVIDED IN THE           -----------------------------------------------------------------------------------------------
FINANCIAL                                            FOR THE YEAR ENDED SEPTEMBER 30,
STATEMENTS.               -----------------------------------------------------------------------------------------------
                            1997      1996      1995      1994      1993      1992      1991     1990     1989     1988
                          --------  --------  --------  --------  --------  --------  --------  -------  -------  -------
<S>                       <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>      <C>      <C>
INCREASE (DECREASE) IN
 NET ASSET VALUE:
PER SHARE OPERATING
 PERFORMANCE:
Net asset value,
 beginning of year......  $  11.28  $  11.50  $  10.90  $  12.44  $  12.03  $  11.41  $  10.88  $ 11.05  $ 11.01  $ 10.70
                          --------  --------  --------  --------  --------  --------  --------  -------  -------  -------
Investment income--net..       .73       .73       .79       .75       .76       .88       .93      .97      .98      .96
Realized and unrealized
 gain (loss) on
 investments--net.......       .21      (.22)      .60     (1.26)      .55       .62       .53     (.17)     .05      .31
                          --------  --------  --------  --------  --------  --------  --------  -------  -------  -------
Total from investment
 operations.............       .94       .51      1.39      (.51)     1.31      1.50      1.46      .80     1.03     1.27
                          --------  --------  --------  --------  --------  --------  --------  -------  -------  -------
Less dividends and
 distributions:
 Investment income--net.     (.73)      (.73)     (.79)     (.75)     (.76)     (.88)     (.93)    (.97)    (.99)    (.96)
 Realized gain on
  investments--net......       --        --        --        --       (.14)      --        --       --       --       --
 In excess of realized
  gain on investments--
  net...................       --        --        --       (.28)      --        --        --       --       --       --
                          --------  --------  --------  --------  --------  --------  --------  -------  -------  -------
Total dividends and
 distributions..........      (.73)     (.73)     (.79)    (1.03)     (.90)     (.88)     (.93)    (.97)    (.99)    (.96)
                          --------  --------  --------  --------  --------  --------  --------  -------  -------  -------
Net asset value, end of
 year...................  $  11.49  $  11.28  $  11.50  $  10.90  $  12.44  $  12.03  $  11.41  $ 10.88  $ 11.05  $ 11.01
                          ========  ========  ========  ========  ========  ========  ========  =======  =======  =======
TOTAL INVESTMENT
 RETURN:*
Based on net asset value
 per share..............     8.59%     4.56%    13.33%    (4.25%)   11.39%    13.71%    13.97%    7.55%    9.79%   12.25%
                          ========  ========  ========  ========  ========  ========  ========  =======  =======  =======
RATIOS TO AVERAGE NET
 ASSETS:
Expenses................      .65%      .59%      .59%      .53%      .58%      .62%      .67%     .71%     .72%     .62%
                          ========  ========  ========  ========  ========  ========  ========  =======  =======  =======
Investment income--net..     6.43%     6.41%     7.14%     6.48%     6.42%     7.54%     8.35%    8.86%    8.97%    8.83%
                          ========  ========  ========  ========  ========  ========  ========  =======  =======  =======
SUPPLEMENTAL DATA:
Net assets, end of year
 (in thousands).........  $179,115  $216,545  $217,714  $170,222  $193,505  $154,333  $103,170  $88,248  $87,001  $97,577
                          ========  ========  ========  ========  ========  ========  ========  =======  =======  =======
Portfolio turnover......    76.99%    96.40%   142.84%   155.42%   180.52%    95.33%   132.56%  102.53%  148.75%  152.41%
                          ========  ========  ========  ========  ========  ========  ========  =======  =======  =======
</TABLE>    
- --------
* Total investment returns exclude the effects of sales loads.
 
                                       17
<PAGE>
 
                       
                    FINANCIAL HIGHLIGHTS -- (CONCLUDED)     
 
                          INTERMEDIATE TERM PORTFOLIO
 
<TABLE>   
<CAPTION>
                                           CLASS B                                 CLASS C                    CLASS D
                        -------------------------------------------------  -------------------------- -------------------------
THE FOLLOWING                                                                                                           FOR THE
PER SHARE DATA                                                                                                          PERIOD
AND RATIOS HAVE                                                                                                          OCT.
BEEN DERIVED                                                     FOR THE                     FOR THE                      21,
FROM INFORMATION                                                 PERIOD       FOR THE        PERIOD       FOR THE        1994+
PROVIDED IN THE                 FOR THE YEAR ENDED              NOV. 13,     YEAR ENDED     OCT. 21,    YEAR ENDED        TO
FINANCIAL                          SEPTEMBER 30,                1992+ TO     SEPT. 30,      1994+ TO     SEPT. 30,       SEPT.
STATEMENTS.             --------------------------------------  SEPT. 30,  ---------------  SEPT. 30, ----------------    30,
                          1997      1996      1995      1994      1993      1997    1996      1995     1997     1996     1995
                        --------  --------  --------  --------  ---------  ------  -------  --------- -------  -------  -------
<S>                     <C>       <C>       <C>       <C>       <C>        <C>     <C>      <C>       <C>      <C>      <C>
INCREASE (DECREASE) IN
 NET ASSET VALUE:
PER SHARE OPERATING
 PERFORMANCE:
Net asset value,
 beginning of period..  $  11.28  $  11.50  $  10.90  $  12.44  $  11.68   $11.28  $ 11.50   $ 10.81  $ 11.28  $ 11.50  $ 10.81
                        --------  --------  --------  --------  --------   ------  -------   -------  -------  -------  -------
Investment income--
 net..................       .67       .67       .74       .69       .61      .67      .67       .70      .72      .72      .74
Realized and
 unrealized gain
 (loss) on
 investments--net.....       .22      (.22)      .60     (1.26)      .90      .21     (.22)      .69      .22     (.22)     .69
                        --------  --------  --------  --------  --------   ------  -------   -------  -------  -------  -------
Total from investment
 operations...........       .89       .45      1.34      (.57)     1.51      .88      .45      1.39      .94      .50     1.43
                        --------  --------  --------  --------  --------   ------  -------   -------  -------  -------  -------
Less dividends and
 distributions:
 Investment income--
  net.................      (.67)     (.67)     (.74)     (.69)     (.61)    (.67)    (.67)     (.70)    (.72)    (.72)    (.74)
 Realized gain on
  investments--net....       --        --        --        --       (.14)     --       --        --       --       --       --
 In excess of realized
  gain on
  investments--net....       --        --        --       (.28)      --       --       --        --       --       --       --
                        --------  --------  --------  --------  --------   ------  -------   -------  -------  -------  -------
Total dividends and
 distributions........      (.67)     (.67)     (.74)     (.97)     (.75)    (.67)    (.67)     (.70)    (.72)    (.72)    (.74)
                        --------  --------  --------  --------  --------   ------  -------   -------  -------  -------  -------
Net asset value, end
 of period............  $  11.50  $  11.28  $  11.50  $  10.90  $  12.44   $11.49  $ 11.28   $ 11.50  $ 11.50  $ 11.28  $ 11.50
                        ========  ========  ========  ========  ========   ======  =======   =======  =======  =======  =======
TOTAL INVESTMENT
 RETURN:**
Based on net asset
 value per share......     8.13%     4.02%    12.73%    (4.72%)   13.30%#   7.99%    3.99%    13.25%#   8.58%    4.46%   13.65%#
                        ========  ========  ========  ========  ========   ======  =======   =======  =======  =======  =======
RATIOS TO AVERAGE NET
 ASSETS:
Expenses..............     1.17%     1.11%     1.11%     1.04%     1.07%*   1.20%    1.15%     1.14%*    .77%     .71%     .70%*
                        ========  ========  ========  ========  ========   ======  =======   =======  =======  =======  =======
Investment income--
 net..................     5.91%     5.89%     6.61%     5.98%     5.61%*   5.89%    5.86%     6.24%*   6.32%    6.32%    6.81%*
                        ========  ========  ========  ========  ========   ======  =======   =======  =======  =======  =======
SUPPLEMENTAL DATA:
Net assets, end of
 period (in
 thousands)...........  $148,148  $216,641  $212,146  $141,212  $134,122   $1,571  $10,144   $ 6,806  $64,335  $33,270  $16,349
                        ========  ========  ========  ========  ========   ======  =======   =======  =======  =======  =======
Portfolio turnover....    76.99%    96.40%   142.84%   155.42%   180.52%   76.99%   96.40%   142.84%   76.99%   96.40%  142.84%
                        ========  ========  ========  ========  ========   ======  =======   =======  =======  =======  =======
</TABLE>    
- --------
 * Annualized.
** Total investment returns exclude the effects of sales loads.
 + Commencement of operations.
# Aggregate total investment return.
 
                                       18
<PAGE>
 
                                    THE FUND
 
  The Fund, a Maryland corporation, is a diversified, open-end investment
company which is comprised of three separate portfolios: the Investment Grade
Portfolio, the Intermediate Term Portfolio and the High Income Portfolio. Each
Portfolio is in effect a separate fund issuing its own shares. A shareholder's
interest is limited to the assets of the Portfolio in which he holds shares,
and a shareholder is entitled to a pro rata share of all dividends and
distributions arising from the net income and capital gains on the investments
of such Portfolio. Each Portfolio bears the expenses directly attributable to
it and a portion of the Fund's general administrative expenses allocated on the
basis of asset size.
 
                       INVESTMENT OBJECTIVES AND POLICIES
 
  The primary investment objective of each Portfolio of the Fund is to obtain
the highest level of current income as is consistent with the investment
policies of such Portfolio, as described herein, and with prudent investment
management. As a secondary objective, each Portfolio seeks capital appreciation
when consistent with its primary objective. These investment objectives are a
fundamental policy of each Portfolio of the Fund and may not be changed without
a vote of the majority of the outstanding voting securities of such Portfolio.
Each Portfolio seeks to achieve its objectives by investing in a diversified
portfolio of fixed-income securities, such as corporate bonds and notes,
convertible securities, preferred stocks and government obligations. There can
be no assurance that the objective of any Portfolio can be attained.
 
  The securities in each Portfolio of the Fund will be varied from time to time
depending upon the judgment of management as to prevailing conditions in the
economy and the securities markets and the prospects for interest rate changes
among different categories of fixed-income securities. The Fund anticipates
that under normal circumstances more than 90% of the assets of each Portfolio
will be invested in fixed-income securities, including convertible and
nonconvertible debt securities and preferred stock. In addition, as a matter of
operating policy at least 65% of the assets of each Portfolio will under normal
circumstances be invested in corporate bonds. The remaining assets of a
Portfolio may be held in cash or, as described herein, may be used in
connection with hedging transactions in futures contracts, related options, and
options on debt securities, or in connection with non-hedging transactions in
options on debt securities. The Portfolios of the Fund do not intend to invest
in common stocks, rights or other equity securities, but the High Income
Portfolio may acquire or hold such securities (if consistent with the
objectives of the Portfolio) when such securities are acquired in unit
offerings with fixed-income securities or in connection with an actual or
proposed conversion or exchange of fixed-income securities.
 
  Each Portfolio is permitted to enter into transactions in futures contracts
and options thereon solely for the purpose of hedging the Portfolio against
adverse movements in the market value of fixed-income securities held by the
Portfolio, or which the Portfolio intends to purchase, and not for the purpose
of speculation. Transactions in options on debt securities also may be entered
into for such hedging purposes, as well as for non-hedging purposes intended to
increase the Portfolios' returns. For a more complete description of futures
and options transactions, see "Interest Rate Futures and Options Thereon" below
and "Options on Debt Securities" below and in the Statement of Additional
Information.
 
 
                                       19
<PAGE>
 
                     INVESTMENT POLICIES OF THE PORTFOLIOS
 
  Each Portfolio pursues its investment objectives through the separate
investment policies described below:
 
  High Income Portfolio: The High Income Portfolio seeks high current income by
investing principally in fixed-income securities that are rated in the lower
rating categories of the established rating services (Baa or lower by Moody's
Investors Service, Inc. ("Moody's") and BBB or lower by Standard & Poor's
Ratings Group ("S&P")), or in unrated securities of comparable quality.
Securities rated below Baa by Moody's or below BBB by S&P, and unrated
securities of comparable quality, are commonly known as "junk bonds." See
"Appendix: Description of Corporate Bond Ratings" for additional information
concerning rating categories. Junk bonds may constitute as much as 100% of the
Portfolio's investments. Although junk bonds can be expected to provide higher
yields, such securities may be subject to greater market fluctuations and risk
of loss of income and principal than lower-yielding, higher-rated fixed-income
securities. See "Risk Factors in Transactions in Junk Bonds." Because
investment in such junk bonds entails relatively greater risk of loss of income
or principal, an investment in the High Income Portfolio may not constitute a
complete investment program and may not be appropriate for all investors.
Purchasers should carefully assess the risks associated with an investment in
this Portfolio.
 
  Selection and supervision by the management of the High Income Portfolio of
portfolio investments involve continuous analysis of individual issuers,
general business conditions and other factors that may be too time-consuming or
too costly for the average investor. The furnishing of these services does not,
of course, guarantee successful results. The Investment Adviser's analysis of
issuers includes, among other things, historic and current financial
conditions, current and anticipated cash flow and borrowing requirements, value
of assets in relation to historical cost, strength of management,
responsiveness to business conditions, credit standing, and current and
anticipated results of operations. Analysis of general business conditions and
other factors may include anticipated change in economic activity and interest
rates, the availability of new investment opportunities, and the economic
outlook for specific industries. While the Investment Adviser considers as one
factor in its credit analysis the ratings assigned by the rating services, the
Investment Adviser performs its own independent credit analysis of issuers and
consequently, the Portfolio may invest, without limit, in unrated securities.
As a result, the High Income Portfolio's ability to achieve its investment
objective may depend to a greater extent on the Investment Adviser's own credit
analysis than mutual funds that invest in higher-rated securities. Although the
High Income Portfolio will invest primarily in lower-rated securities, other
than with respect to Distressed Securities (which are discussed below) it will
not invest in securities in the lowest rating categories (Ca or below for
Moody's and CC or below for S&P) unless the Investment Adviser believes that
the financial condition of the issuer or the protection afforded to the
particular securities is stronger than would otherwise be indicated by such low
ratings. Securities that are subsequently downgraded may continue to be held
and will be sold only if, in the judgment of the Investment Adviser, it is
advantageous to do so.
 
  The High Income Portfolio may also from time to time invest up to 10% of its
assets in securities which are the subject of bankruptcy proceedings or
otherwise in default or in significant risk of being in default ("Distressed
Securities"). Distressed Securities that are in default or in risk of being in
default but not yet in bankruptcy proceedings may be the subject of a pre-
bankruptcy exchange offer pursuant to which holders of the Distressed
Securities receive securities or assets in exchange for the Distressed
Securities. Holders of Distressed Securities that are the subject of bankruptcy
proceedings may, following approval of a plan of
 
                                       20
<PAGE>
 
reorganization by the bankruptcy court, receive securities or assets in
exchange for the Distressed Securities. Generally, the Portfolio will invest in
Distressed Securities when the Investment Adviser anticipates that it is
reasonably likely that the securities will be subject to such an exchange offer
or plan of reorganization, as to which there can be no assurance. Normally, the
Portfolio will invest in Distressed Securities at a price that represents a
significant discount from the principal amount due on maturity of the
securities. The Portfolio will invest in Distressed Securities when the
Investment Adviser believes that, based on its analysis of the asset values of
the issuer of the Distressed Securities and the issuer's overall business
prospects, upon completion of an exchange offer or plan of reorganization with
respect to the Distressed Securities the Portfolio would receive, in exchange
for its Distressed Securities securities or assets with terms and credit
characteristics which offer the Portfolio significant opportunities for capital
appreciation and future high rates of current income. See "Risk Factors in
Transactions in Junk Bonds."
 
  When changing economic conditions and other factors cause the yield
difference between lower-rated and higher-rated securities to narrow, the High
Income Portfolio may purchase higher-rated securities if the Investment Adviser
believes that the risk of loss of income and principal may be substantially
reduced with only a relatively small reduction in yield. In addition, under
unusual market or economic conditions, the High Income Portfolio for temporary
defensive or other purposes may invest up to 100% of its assets in securities
issued or guaranteed by the United States Government or its instrumentalities
or agencies, certificates of deposit, bankers' acceptances and other bank
obligations, commercial paper rated in the highest category by an established
rating agency, or other fixed-income securities deemed by the Investment
Adviser to be consistent with a defensive posture, or may hold its assets in
cash. The yield on such securities may be lower than the yield on lower-rated
fixed-income securities.
 
  Investment Grade Portfolio: The Investment Grade Portfolio invests primarily
in securities rated in the three highest rating categories of either S&P or
Moody's. The financial risk of the Portfolio should be minimized by the quality
of the bonds in which it will invest, but the long maturities that typically
provide the best yields will subject the Portfolio to possible substantial
price changes resulting from market yield fluctuations. Portfolio management
strategy will attempt to mitigate adverse price changes and optimize favorable
price changes through active trading that shifts the maturity and/or quality
structure of the Portfolio within the overall investment guidelines. The
Investment Grade Portfolio may continue to hold securities which, after being
purchased by the Portfolio, were downgraded to a rating below the top three
rating categories of Moody's or S&P as well as any unrated securities which, in
the Investment Adviser's judgment, have suffered a similar decline in quality.
Under unusual market or economic conditions, the Portfolio for temporary
defensive or other purposes may invest up to 100% of its assets in obligations
issued or guaranteed by the United States Government or its instrumentalities
or agencies, certificates of deposit, bankers' acceptances and other bank
obligations, commercial paper rated in the highest category by an established
rating agency or other fixed-income securities deemed by the Investment Adviser
to be consistent with the objectives of the Portfolio, or the Portfolio may
hold its assets in cash.
 
  Intermediate Term Portfolio: The Intermediate Term Portfolio invests
primarily in bonds rated in the four highest rating categories of S&P or
Moody's. Bonds rated in the lowest of these categories are considered to have
some speculative characteristics. The Portfolio will invest in fixed-income
securities with a maximum remaining maturity of ten years and, under normal
circumstances, the average maturity of the Portfolio will be between five and
seven years. The Portfolio will treat bonds of which the Portfolio has the
option to
 
                                       21
<PAGE>
 
demand repayment within ten years as having a remaining maturity of less than
ten years, even if the period to the stated maturity date of such bonds is
greater than ten years. In addition, the Portfolio may purchase bonds on a
forward commitment basis, with a period of up to 45 days between the date on
which the Fund commits to purchase a bond and the date on which it settles the
purchase, even if the commitment is made in excess of ten years prior to the
maturity date of the bond, as long as the maturity date of the bond at the date
of settlement is no more than ten years. See "Investment Restrictions--Forward
Commitments" in the Statement of Additional Information for a further
description of forward commitments. Because of the shorter maturities of the
securities in which this Portfolio invests, changes in the general level of
interest rates should result in less change in the net asset value per share of
the Portfolio than for the other two Portfolios. In addition, this Portfolio
will usually offer a lower yield.
 
  Despite the inherently greater defensive characteristics of the shorter
maturities in the Intermediate Term Portfolio, during periods of unusually high
yields on money market instruments the prices of intermediate-term maturity
securities may be adversely affected to a substantial degree. Therefore,
management will seek to mitigate the effect of any such interest rate
development by shortening the average maturity of securities held by the
Portfolio during such periods. Active management strategy within the overall
investment guidelines will thus seek to provide an attractive total return. The
Intermediate Term Portfolio may continue to hold securities which, after being
purchased by the Portfolio, are downgraded to a rating lower than the four
highest categories of S&P or Moody's. As in the other Portfolios, under unusual
market or economic conditions, the Portfolio for temporary defensive or other
purposes may invest up to 100% of its assets in obligations issued or
guaranteed by the United States Government or its instrumentalities or
agencies, certificates of deposit, bankers' acceptances and other bank
obligations, commercial paper rated in the highest category by an established
rating agency or other fixed-income securities deemed by the Investment Adviser
to be consistent with the objectives of the Portfolio, or the Portfolio may
hold its assets in cash.
 
RISK FACTORS IN TRANSACTIONS IN JUNK BONDS
 
  Junk bonds are regarded as being predominantly speculative as to the issuer's
ability to make payments of principal and interest. Investment in such
securities involves substantial risk. Issuers of junk bonds may be highly
leveraged and may not have available to them more traditional methods of
financing. Therefore, the risks associated with acquiring the securities of
such issuers generally are greater than is the case with higher rated
securities. For example, during an economic downturn or a sustained period of
rising interest rates, issuers of junk bonds may be more likely to experience
financial stress, especially if such issuers are highly leveraged. In addition,
the market for junk bonds is relatively new and has not weathered a major
economic recession, and it is unknown what effects such a recession might have
on such securities. During such periods, such issuers may not have sufficient
revenues to meet their interest payment obligations. The issuer's ability to
service its debt obligations also may be adversely affected by specific issuer
developments, or the issuer's inability to meet specific projected business
forecasts, or the unavailability of additional financing. The risk of loss due
to default by the issuer is significantly greater for the holders of junk bonds
because such securities may be unsecured and may be subordinated to other
creditors of the issuer. While most of the high-yield bonds in which the High
Income Portfolio may invest do not include securities that, at the time of
investment, are in default or the issuers of which are in bankruptcy, there can
be no assurance that such events will not occur after the Portfolio purchases a
particular security, in which case the Portfolio may experience losses and
incur costs.
 
                                       22
<PAGE>
 
  Junk bonds frequently have call or redemption features that would permit an
issuer to repurchase the security from the High Income Portfolio. If a call
were exercised by the issuer during a period of declining interest rates, the
High Income Portfolio likely would have to replace such called security with a
lower yielding security, thus decreasing the net investment income to the High
Income Portfolio and dividends to shareholders.
 
  Junk bonds tend to be more volatile than higher rated fixed-income
securities, so that adverse economic events may have a greater impact on the
prices of junk bonds than on higher rated fixed-income securities. Like higher
rated fixed-income securities, junk bonds are generally purchased and sold
through dealers who make a market in such securities for their own accounts.
However, there are fewer dealers in the junk bond market, which may be less
liquid than the market for higher rated fixed-income securities, even under
normal economic conditions. Also, there may be significant disparities in the
prices quoted for junk bonds by various dealers. Adverse economic conditions or
investor perceptions (whether or not based on economic fundamentals) may impair
the liquidity of this market, and may cause the prices the Portfolio receives
for its junk bonds to be reduced, or the Portfolio may experience difficulty in
liquidating a portion of its portfolio when necessary to meet the Portfolio's
liquidity needs or in response to a specific economic event such as a
deterioration in the creditworthiness of the issuer. Under such conditions,
judgment may play a greater role in valuing certain of the Portfolio's
portfolio securities than in the case of securities trading in a more liquid
market.
 
  Adverse publicity and investor perceptions, which may not be based on
fundamental analysis, also may decrease the value and liquidity of junk bonds,
particularly in a thinly traded market. Factors adversely affecting the market
value of such securities are likely to affect adversely the High Income
Portfolio's net asset value. In addition, the High Income Portfolio may incur
additional expenses to the extent that it is required to seek recovery upon a
default on a portfolio holding or to participate in the restructuring of the
obligation.
 
  Investment in Distressed Securities involves significant risk. The High
Income Portfolio will only make such investments when the Investment Adviser
believes it is reasonably likely that the issuer of the securities will make an
exchange offer or will be the subject of a plan of reorganization; however,
there can be no assurance that such an exchange offer will be made or that such
a plan of reorganization will be adopted. In addition, a significant period of
time may pass between the time at which the Portfolio makes its investment in
Distressed Securities and the time that any such exchange offer or plan of
reorganization is completed. During this period, it is unlikely that the Fund
will receive any interest payments on the Distressed Securities, the Portfolio
will be subject to significant uncertainty as to whether or not the exchange
offer or plan of reorganization will be completed, and the Portfolio may be
required to bear certain expenses to protect its interest in the course of
negotiations surrounding any potential exchange offer or plan of
reorganization. In addition, even if an exchange offer is made or a plan of
reorganization is adopted with respect to Distressed Securities held by the
Portfolio, there can be no assurance that the securities or other assets
received by the Portfolio in connection with such exchange offer or plan of
reorganization will not have a lower value or income potential than anticipated
when the investment was made. Moreover, any securities received by the
Portfolio upon completion of an exchange offer or plan of reorganization may be
restricted as to resale. In addition, as a result of the Portfolio's
participation in negotiations with respect to any exchange offer or plan of
reorganization with respect to an issue of Distressed Securities, the Portfolio
may be precluded from disposing of such securities.
 
                                       23
<PAGE>
 
   
  The table below shows the average monthly dollar-weighted market value, by
S&P's rating category, of the bonds held by the High Income Portfolio during
the fiscal year ended September 30, 1997.     
 
<TABLE>   
<CAPTION>
                                                      % MARKET VALUE
                                                         DOLLAR-
                                                         WEIGHTED
                                % NET                   CORPORATE
            RATING              ASSETS                    BONDS
            ------              ------                --------------
            <S>                 <C>                   <C>
            AAA                   1.5                       2.0
            BBB                   4.1                       5.0
            BB                   31.1                      35.1
            B                    44.1                      48.6
            CCC                   2.5                       3.0
            C                     0.4                        --
            D                      --                       1.1
            NR*                   4.7                       5.2
                                 ----                      ----
                                 88.4%                      100%
                                 ====                      ====
</TABLE>    
- --------
   
*   Bonds that are not rated by S&P. Such bonds may be rated by nationally
    recognized statistical rating organizations other than S&P, or may not be
    rated by any such organization. With respect to the percentage of the
    Fund's assets invested in such securities, the Fund's Investment Adviser
    believes that 1.0% are of comparable quality to bonds rated BB, 3.2% are of
    comparable quality to bonds rated B and 0.5% are of comparable quality to
    bonds rated CCC. This determination is based on the Investment Adviser's
    own internal evaluation and does not necessarily reflect how such
    securities would be rated by S&P if it were to rate the securities.     
 
INVESTMENTS IN FOREIGN SECURITIES
 
  Each Portfolio of the Fund may invest in securities issued by foreign
governments (or political subdivisions or instrumentalities thereof) or foreign
companies (collectively, "Foreign Securities"). A Portfolio may only invest in
Foreign Securities if, at the time of acquisition, no more than 25% of the
assets of such Portfolio (taken at market value at the time of the investment)
would be invested in Foreign Securities following such investment.
 
  With respect to certain foreign countries, there is the possibility of
expropriation of assets, confiscatory taxation, political or social instability
or diplomatic developments which could affect investment in those countries.
There may be less publicly available information about a foreign security than
about a comparable United States instrument issued by a U.S. entity, and
foreign entities may not be subject to accounting, auditing and financial
reporting standards and requirements comparable to those of United States
entities. In addition, certain foreign securities may be subject to non-U.S.
withholding taxes.
 
INTEREST RATE FUTURES AND OPTIONS THEREON
 
  Each Portfolio of the Fund may engage in hedging transactions in bond futures
contracts and options thereon. The Portfolios currently may trade only in
futures contracts on U.S. Treasury bonds, bills and notes
 
                                       24
<PAGE>
 
and Government National Mortgage Association ("GNMA") mortgage-backed
certificates and options on such futures contracts. However, under the
investment restrictions of the Fund, each Portfolio is permitted to trade in
such additional types of interest rate futures contracts and options thereon as
the Fund's Board of Directors determines is appropriate for trading by that
Portfolio, subject to the restrictions noted below. Reference is made to the
Statement of Additional Information for a further description of the various
instruments and related portfolio strategies that may be used by the Fund.
 
  Futures. Each Portfolio may engage in transactions in futures contracts and
options thereon. Futures are standardized, exchange-traded derivatives
contracts which obligate a purchaser to take delivery, and a seller to make
delivery, of a specific amount of a commodity at a specified future date at a
specified price. Options on futures are options to either buy (call) or sell
(put) a futures contract at a specified price prior to a specified date. No
price is paid upon entering into a futures contract (although a fee, or option
premium, is generally paid to the seller of an option on a futures contract at
the initiation of the transaction). Rather, upon purchasing or selling a
futures contract a Portfolio is required to deposit collateral ("margin") equal
to a percentage (generally less than 10%) of the contract value. Each day
thereafter until the futures position is closed, the Portfolio will pay
additional margin representing any loss experienced as a result of the futures
position the prior day or be entitled to a payment representing any profit
experienced as a result of the futures position the prior day.
 
  A Portfolio may sell futures contracts or purchase a put option on futures
contracts in anticipation of an increase in interest rates. Generally, as
interest rates rise, the market value of the fixed-income securities held by
the Portfolio will fall, reducing the net asset value of the Portfolio. The
sale of futures contracts may limit the Portfolio's risk of loss through a
decline in the market value of portfolio holdings correlated with the futures
contracts prior to the futures contracts' expiration date. In the event the
market value of the portfolio holdings correlated with the futures contracts
increases rather than decreases, however, the Portfolio will realize a loss on
the futures position and a lower overall return than would have been realized
without the purchase of the futures contracts.
 
  A Portfolio may purchase futures contracts or purchase a call option on
futures contracts in anticipation of a decrease in interest rates. Generally,
as interest rates decrease, the market value of fixed-income securities which
the Portfolio may be considering purchasing will increase. The purchase of
futures contracts may protect a Portfolio from having to pay more for such
securities when it identifies specific securities it wishes to purchase. In the
event that such securities decline in value or the Portfolio determines not to
purchase any additional securities, however, the Portfolio may realize a loss
relating to the futures position.
 
  Each Portfolio will limit transactions in futures and options on futures to
financial futures contracts (i.e., contracts for which the underlying commodity
is a bond, bond index or interest rate index) purchased or sold for hedging
purposes (including anticipatory hedges). Each Portfolio will further limit
transactions in futures and options on futures to the extent necessary to
prevent the Fund from being deemed a "commodity pool" under regulations of the
Commodity Futures Trading Commission.
 
  Risk Factors in Futures and Options on Futures. Use of futures and options on
futures for hedging purposes involves the risk of imperfect correlation in
movements in the value of the futures contract and the value of the fixed-
income securities being hedged. An increase or decrease in the general level of
interest rates can generally be expected to have a broadly similar effect on
the market value of government securities on which futures contracts are based
and on the market value of the corporate fixed-income securities in which
 
                                       25
<PAGE>
 
each Portfolio will primarily invest, but it is unlikely that the changes in
value of government securities and corporate fixed-income securities will be
perfectly correlated. In addition, disparities in the average maturity of a
Portfolio's investments compared to a financial instrument on which a futures
contract is based may also affect the correlation of price movements. If the
value of the futures contract moves more or less than the value of the hedged
corporate fixed-income securities which a Portfolio owns or anticipates
purchasing, a Portfolio will experience a gain or loss which will not be
completely offset by movements in the value of the hedged fixed-income
securities.
 
  Transactions in futures and options on futures may expose the Fund to
potential losses which exceed the amount originally invested by the Fund in
such instruments. When a Portfolio engages in such a transaction, the Portfolio
will deposit in a segregated account at its custodian liquid securities with a
value at least equal to the Portfolio's exposure, on a mark-to-market basis, to
the transaction (as calculated pursuant to requirements of the Securities and
Exchange Commission). Such segregation will ensure that the Portfolio has
assets available to satisfy its obligations with respect to the transaction,
but will not limit the Portfolio's exposure to loss.
 
OTHER PORTFOLIO STRATEGIES
 
  Each Portfolio of the Fund may engage in the portfolio strategies described
below and may also lend portfolio securities, and invest in restricted
securities and foreign securities. Reference is made to the Statement of
Additional Information for a more complete description of such strategies.
 
  Repurchase Agreements. Each Portfolio may invest in repurchase agreements.
Repurchase agreements may be entered into only with a member bank of the
Federal Reserve System or primary dealer in U.S. Government securities or an
affiliate thereof. Under such agreements, the seller agrees, upon entering into
the contract, to repurchase the security from the Portfolio at a mutually
agreed-upon time and price, thereby determining the yield during the term of
the agreement. This results in a fixed rate of return for the Portfolio
insulated from market fluctuations during such period. In the event of default
by the seller under a repurchase agreement, a Portfolio will continue to hold
the seller's securities as collateral but may suffer time delays and incur
costs or possible losses in connection with such transactions.
 
  Forward Commitments. Each Portfolio may purchase securities on a when-issued
basis or forward commitment basis, and may purchase or sell securities for
delayed delivery. These transactions occur when securities are purchased or
sold by the Portfolio with payment and delivery taking place in the future to
secure what is considered an advantageous yield and price to the Portfolio at
the time of entering into the transaction. The value of the security on the
delivery date may be more or less than its purchase price. A Portfolio will
establish a segregated account in connection with such transactions in which
the Portfolio will deposit liquid securities with a value at least equal to the
Portfolio's exposure, on a mark-to-market basis, to the transaction (as
calculated pursuant to requirements of the Securities and Exchange Commission).
Such segregation will ensure that the Portfolio has assets available to satisfy
its obligations with respect to the transaction, but will not limit the
Portfolio's exposure to loss).
 
  Restricted Securities. From time to time a Portfolio of the Fund may invest
in securities the disposition of which is subject to legal restrictions, such
as restrictions imposed by the Securities Act of 1933 on the
 
                                       26
<PAGE>
 
resale of securities acquired in private placements. If registration of such
securities under the Securities Act is required, such registration may not be
readily accomplished, and if such securities may be resold without
registration, such resale may be permissible only in limited quantities. In
either event, a Portfolio of the Fund may not be able to sell its restricted
securities at a time which, in the judgment of the Investment Adviser, would be
most opportune.
   
  Standby Commitment Agreements. The High Income Portfolio of the Fund may from
time to time enter into standby commitment agreements. Such agreements commit
the Portfolio, for a stated period of time, to purchase a stated amount of a
fixed-income security, which may be issued and sold to the Portfolio at the
option of the issuer. The price and coupon of the security is fixed at the time
of the commitment. At the time of entering into the agreement, the Portfolio
may be paid a commitment fee, regardless of whether or not the security is
ultimately issued, which is typically approximately 0.5% of the aggregate
purchase price of the security which the Portfolio has committed to purchase.
The Portfolio will enter into such agreements only for the purpose of investing
in the security underlying the commitment at a yield and price which is
considered advantageous to the Portfolio. The Portfolio will not enter into a
standby commitment with a remaining term in excess of 45 days and will limit
its investment in such commitments so that the aggregate purchase price of the
securities subject to such commitments, together with the value of portfolio
securities subject to legal restrictions on resale, will not exceed 10% of its
assets taken at the time of acquisition of such commitment or security. The
Portfolio will at all times maintain a segregated account with its custodian of
cash or liquid, high-grade debt obligations in an amount equal to the purchase
price of the securities underlying the commitment.     
 
  There can be no assurance that the securities subject to a standby commitment
will be issued and the value of the security, if issued, on the delivery date
may be more or less than its purchase price. Since the issuance of the security
underlying the commitment is at the option of the issuer, the Portfolio may
bear the risk of a decline in the value of such security and may not benefit
from an appreciation in the value of the security during the commitment period.
 
  The purchase of a security subject to a standby commitment agreement and the
related commitment fee will be recorded on the date on which the security can
reasonably be expected to be issued and the value of the security will
thereafter be reflected in the calculation of the Portfolio's net asset value.
The cost basis of the security will be adjusted by the amount of the commitment
fee. In the event the security is not issued, the commitment fee will be
recorded as income on the expiration date of the standby commitment.
 
  Options on Debt Securities. The Portfolios may write call and put options on
U.S. Treasury bills, notes and bonds in order to increase the return on their
investments and in order to hedge optionable U.S. Treasury securities held by
the Portfolios. The Portfolios will write only covered call options on debt
securities (i.e., options in which it owns the underlying security) or fully
funded put options on debt securities (i.e., options in which an amount of cash
or short-term securities equal to the exercise price of the put has been
segregated with the Fund's custodian). By writing covered options on U.S.
Treasury securities, a Portfolio will be able to increase its return on the
underlying securities by the amount of the premium, if the option expires
unexercised, or by the amount of any profits earned by closing out the option
position. The Portfolio may be required, however, to forego benefits which
could have been obtained from an increase in the value of
 
                                       27
<PAGE>
 
securities on which a call is written or a decrease in the value of securities
on which a put is written. As a result, the Portfolio may receive less total
return, and at other times greater total return, than if it had not written
options.
 
  The Portfolios also may purchase put options on optionable U.S. Treasury
bills, notes and bonds held in a Portfolio and, under certain limited
circumstances described in the Statement of Additional Information, call
options on such instruments. Purchases of put options may enable the Portfolios
to limit the risk of declines in the value of the portfolio security underlying
the put, until the expiration of the option or the closing of the option
transaction. By purchasing a put, however, a Portfolio will be required to pay
the premium, which will reduce the benefits obtained from the transaction.
 
  Although options written by a Portfolio may be terminated prior to exercise
or expiration by entering into an offsetting transaction, the ability to do so
depends upon the presence of a liquid secondary market on the exchange on which
the option is traded. If no such market is available, the Portfolio may be
unable to terminate existing positions and may be subject to exercise of the
option under unfavorable circumstances. The Portfolios will enter into
transactions in options on debt securities only when the management of the Fund
believes that a liquid secondary market for such options is available.
Reference is made to the Appendix to the Statement of Additional Information
for further information regarding the trading of options on debt securities.
 
  Exchanges generally introduce options series on specific issues of U.S.
Treasury bonds and notes as such securities are issued. Such Exchanges,
however, do not ordinarily introduce new series of options on such issues to
replace expiring series inasmuch as trading interest tends to center on the
most recently auctioned issues of Treasury bonds and notes. Consequently,
options representing a full range of expirations will not usually be available
for every issue on which options are traded.
 
INVESTMENT RESTRICTIONS
   
  The Fund has adopted a number of restrictions and policies relating to the
investment of its assets and its activities, which are fundamental policies and
may not be changed without the approval of the holders of a majority of the
Fund's outstanding voting securities (including a majority of the shares of
each Portfolio). Among such restrictions are prohibitions against the Fund's
investing more than 5% of the total assets of any Portfolio in the securities
of any one issuer and investing more than 25% of the total assets of any
Portfolio in the securities of issuers primarily engaged in the same industry.
Investors are referred to the Statement of Additional Information for a
complete description of such restrictions and policies.     
 
                                       28
<PAGE>
 
                               INVESTMENT ADVISER
   
  The investment adviser to the Fund is FAM, an affiliate of MLAM, an indirect
subsidiary of ML & Co., a financial services holding company and the parent of
Merrill Lynch. The address of FAM is P.O. Box 9011, Princeton, New Jersey
08543-9011. FAM or MLAM acts as the Investment Adviser for more than 140
registered investment companies. The Investment Adviser also offers portfolio
management and portfolio analysis services to individual and institutional
accounts. As of December 31, 1997, the Investment Adviser and MLAM had a total
of $278.7 billion in investment company and other portfolio assets under
management, including accounts of certain affiliates of the Investment Adviser.
       
  The Investment Adviser has entered into a sub-advisory agreement (the "Sub-
Advisory Agreement") with MLAM U.K., an indirect, wholly owned subsidiary of
ML & Co. and an affiliate of the Investment Adviser, pursuant to which the
Investment Adviser pays MLAM U.K. a fee for providing investment advisory
services to the Investment Adviser with respect to the Fund in an amount to be
determined from time to time by the Investment Adviser and MLAM U.K., but in no
event in excess of the amount that the Investment Adviser actually receives for
providing services to the Fund pursuant to the Investment Advisory Agreement.
The address of MLAM U.K. is Milton Gate, 1 Moor Lane, London EC2Y 9HA, England.
       
  FAM, subject to the general supervision of the Fund's Board of Directors,
renders investment advice to the Fund and is responsible for the overall
management of the Fund's business affairs. The responsibility for making
decisions to buy, sell or hold a particular security rests with FAM. For the
fiscal year ended September 30, 1997, FAM received advisory fees from the Fund
in the amount of $33,985,376 of which $27,345,032 was received with respect to
the High Income Portfolio (representing 0.41% of its average net assets),
$4,995,553 was received with respect to the Investment Grade Portfolio
(representing 0.36% of its average net assets) and $1,644,791 was received with
respect to the Intermediate Term Portfolio (representing .36% of its average
net assets).     
   
  The Investment Advisory Agreement obligates each Portfolio to pay certain
expenses incurred in its operation and a portion of the Fund's general
administrative expenses allocated on the basis of the asset size of the
respective Portfolios. The Fund's total expenses for the year ended September
30, 1997 were $93,327,393 of which $75,595,503 was attributable to the High
Income Portfolio, $13,646,545 was attributable to the Investment Grade
Portfolio, and $4,085,345 was attributable to the Intermediate Term Portfolio,
respectively.     
   
  For the fiscal year ended September 30, 1997, the ratio of total expenses to
average net assets with respect to the High Income Portfolio was 0.51%, 1.27%,
1.32% and 0.76% for Class A, Class B, Class C and Class D shares, respectively.
       
  For the fiscal year ended September 30, 1997, the ratio of total expenses to
average net assets with respect to the Investment Grade Portfolio was 0.57%,
1.34%, 1.39% and 0.82% for Class A, Class B, Class C and Class D shares,
respectively.     
   
  For the fiscal year ended September 30, 1997 the ratio of total expenses to
average net assets with respect to the Intermediate Term Portfolio was 0.65%,
1.17%, 1.20% and 0.77% for Class A, Class B, Class C and Class D shares,
respectively.     
 
                                       29
<PAGE>
 
   
  Accounting services are provided to the Fund by FAM and the Fund reimburses
FAM for its costs in connection with such services. For the fiscal year ended
September 30, 1997, the Fund reimbursed FAM $735,200 for accounting services of
which $505,855 was attributable to the High Income Portfolio, $153,971 was
attributable to the Investment Grade Portfolio and $75,374 was attributable to
the Intermediate Term Portfolio.     
   
  Vincent T. Lathbury III serves as Portfolio Manager of the High Income
Portfolio, and Jay C. Harbeck and Christopher G. Ayoub serve as Portfolio
Managers of the Investment Grade and Intermediate Term Portfolios. They are
primarily responsible for the day to day management of the Fund. Vincent T.
Lathbury III has served as First Vice President of MLAM since 1997, Vice
President of MLAM from 1982 to 1997 and Portfolio Manager of the Investment
Adviser and MLAM since 1982. Jay C. Harbeck has served as First Vice President
of MLAM since 1997, Vice President of MLAM from 1986 to 1997 and as Portfolio
Manager of MLAM since 1992. Christopher G. Ayoub has served as Director (Fixed
Income Fund Management) of MLAM since 1997, Vice President of MLAM from 1985 to
1997 and Assistant Vice President from 1984 to 1985.     
 
CODE OF ETHICS
 
  The Board of Directors of the Fund has adopted a Code of Ethics under Rule
17j-1 of the Investment Company Act of 1940 which incorporates the Code of
Ethics of the Investment Adviser (together, the "Codes"). The Codes
significantly restrict the personal investing activities of all employees of
the Investment Adviser and, as described below, impose additional, more
onerous, restrictions on fund investment personnel.
 
  The Codes require that all employees of the Investment Adviser preclear any
personal securities investment (with limited exceptions, such as government
securities). The preclearance requirement and associated procedures are
designed to identify any substantive prohibition or limitation applicable to
the proposed investment. The substantive restrictions applicable to all
employees of the Investment Adviser include a ban on acquiring any securities
in a "hot" initial public offering and a prohibition from profiting on short-
term trading in securities. In addition, no employee may purchase or sell any
security which at the time is being purchased or sold (as the case may be), or
to the knowledge of the employee is being considered for purchase or sale, by
any fund advised by the Investment Adviser. Furthermore, the Codes provide for
trading "blackout periods" which prohibit trading by investment personnel of
the Fund within periods of trading by the Fund in the same (or equivalent)
security (15 or 30 days depending upon the transaction).
 
TRANSFER AGENCY SERVICES
   
  The Transfer Agent, which is a subsidiary of ML & Co., acts as the Fund's
Transfer Agent pursuant to a Transfer Agency, Dividend Disbursing Agency and
Shareholder Servicing Agreement (the "Transfer Agency Agreement"). Pursuant to
the Transfer Agency Agreement, the Transfer Agent is responsible for the
issuance, transfer and redemption of shares and the opening and maintenance of
shareholder accounts. Pursuant to the Transfer Agency Agreement, the Transfer
Agent receives an annual fee of up to $11.00 per Class A or Class D account of
the Portfolios and up to $14.00 per Class B or Class C account of the
Portfolios, and is entitled to reimbursement for certain transaction charges
and out-of-pocket expenses incurred by the Transfer Agent under the Transfer
Agency Agreement. Additionally, a $.20 monthly closed account charge will be
assessed on all accounts which close during the calendar year. Application of
this fee will commence the month following the month the account is closed. At
the end of the calendar year, no further fees will be     
 
                                       30
<PAGE>
 
   
due. For purposes of the Transfer Agency Agreement, the term "account" includes
a shareholder account maintained directly by the Transfer Agent and any other
account representing the beneficial interest of a person in the relevant share
class on a recordkeeping system, provided the recordkeeping system is
maintained by a subsidiary of ML & Co. For the fiscal year ended September 30,
1997,the total fee paid by the Fund to the Transfer Agent was $8,456,820
pursuant to the Transfer Agency Agreement.     
 
                                   DIRECTORS
   
  The Directors of the Fund consist of six individuals, five of whom are "non-
affiliated" persons of the Fund as defined in the Investment Company Act of
1940. The Directors of the Fund are responsible for the overall supervision of
the operations of the Fund and perform the various duties imposed on the
directors of investment companies by the Investment Company Act of 1940. The
Board of Directors elects officers of the Fund annually.     
 
  The Directors of the Fund and their principal employment are as follows:
   
  Arthur Zeikel*--Chairman of the Investment Adviser and its affiliate, MLAM;
President and Director of Princeton Services, Inc. ("Princeton Services"); and
Executive Vice President of ML & Co.     
   
  Ronald W. Forbes--Professor of Finance, School of Business, State University
of New York at Albany.     
 
  Cynthia A. Montgomery--Professor of Competition and Strategy, Harvard
Business School.
   
  Charles C. Reilly--Self-employed financial consultant; former President and
Chief Investment Officer of Verus Capital, Inc.; former Senior Vice President
of Arnhold and S. Bleichroeder, Inc.     
 
  Kevin A. Ryan--Professor of Education at Boston University; Founder and
current Director of the Boston University Center for the Advancement of Ethics
and Character.
 
  Richard R. West--Dean Emeritus, New York University Leonard N. Stern School
of Business Administration.
- --------
*   Interested person, as defined in the Investment Company Act of 1940, of the
    Fund.
 
                               PURCHASE OF SHARES
   
  Each Portfolio continuously offers its shares in four classes at a public
offering price equal to the net asset value plus varying sales charges as set
forth below. The Distributor, an affiliate of both the Investment Adviser and
Merrill Lynch, acts as the distributor of the shares. Class C shares of the
Intermediate Term Portfolio are offered only through the Exchange Privilege.
See page 52.     
   
  Shares may be purchased directly from the Distributor or from other
securities dealers, including Merrill Lynch, with whom the Distributor has
entered into selected dealer agreements. The minimum initial purchase in each
Portfolio is $1,000 and the minimum subsequent purchase in each Portfolio is
$50, except that for retirement plans the minimum initial purchase in each
Portfolio is $100 and the minimum subsequent purchase is $1, and for
participants in certain fee-based programs the minimum initial purchase is $500
and     
 
                                       31
<PAGE>
 
   
the minimum subsequent purchase is $50. Merrill Lynch charges its customers a
processing fee (currently $5.35) to confirm a sale of shares to such
customers.     
 
  Each of the Portfolios issues four classes of shares under the Merrill Lynch
Select Pricing SM System, which permits each investor to choose the method of
purchasing shares that the investor believes is most beneficial given the
amount of the purchase, the length of time the investor expects to hold the
shares and other relevant circumstances. Class A and Class D shares are sold
to investors choosing the initial sales charge alternative and Class B and
Class C shares are sold to investors choosing the deferred sales charge
alternative. Class C shares of the Intermediate Term Portfolio are available
only through the Exchange Privilege and may not be purchased except through
exchange of Class C shares of another Portfolio or another fund.
 
  The alternate sales arrangements of the Fund permit investors in the
Portfolios to choose the method of purchasing shares that they believe is most
beneficial given the amount of their purchase, the length of time the investor
expects to hold his shares and other relevant circumstances. Investors should
determine whether under their particular circumstances it is more advantageous
to incur an initial sales charge, as discussed below, or to have the entire
initial purchase price invested in one of the Portfolios with the investment
thereafter being subject to ongoing account maintenance and distribution fees.
A discussion of the factors that investors should consider in determining the
method of purchasing shares under the Merrill Lynch Select Pricing SM System
is set forth under "Merrill Lynch Select Pricing SM System" on page 5.
   
  Each Class A, Class B, Class C and Class D share of a Portfolio represents
identical interests in the Portfolio and has the same rights, except that
Class B, Class C and Class D shares bear the expenses of the ongoing account
maintenance fees, and Class B and Class C shares bear the expenses of the
ongoing distribution fees and the additional incremental transfer agency costs
resulting from the deferred sales charge arrangements. The deferred sales
charges and account maintenance fees that are imposed on Class B and Class C
shares, as well as the account maintenance fees that are imposed on Class D
shares, will be imposed directly against those classes and not against all
assets of the Portfolio and, accordingly, such charges will not affect the net
asset value of any other class or have any impact on investors choosing
another sales charge option. Dividends paid by a Portfolio for each class of
shares will be calculated in the same manner at the same time and will differ
only to the extent that account maintenance and distribution fees and any
incremental transfer agency costs relating to a particular class are borne
exclusively by that class. Class B, Class C and Class D shares of a Portfolio
each have exclusive voting rights with respect to the Rule 12b-1 distribution
plan adopted with respect to such class pursuant to which account maintenance
and/or distribution fees are paid (except that Class B shareholders may vote
upon any material changes to expenses charged under the Class D Distribution
Plan). See "Distribution Plans" below. Each class has different exchange
privileges. See "Shareholder Services--Exchange Privilege."     
   
  Investors should understand that the purpose and function of the initial
sales charges with respect to Class A and Class D shares are the same as those
of the CDSC and distribution fees with respect to Class B and Class C shares
in that the sales charges and distribution fees applicable to each class
provide for the financing of the distribution of the shares of the Fund. The
distribution-related revenues paid with respect to a class will not be used to
finance the distribution expenditures of another class. Sales personnel may
receive different compensation for selling different classes of shares.
Investors are advised that only Class A and Class D shares may be available
for purchase through securities dealers, other than Merrill Lynch, that are
eligible to sell shares.     
 
                                      32
<PAGE>
 
  The following tables set forth a summary of the distribution arrangements
for each class of shares under the Merrill Lynch Select Pricing SM System.
 
                  HIGH INCOME AND INVESTMENT GRADE PORTFOLIOS
 
 
<TABLE>   
<CAPTION>
                                             ACCOUNT
                                           MAINTENANCE DISTRIBUTION          CONVERSION
   CLASS          SALES CHARGE(/1/)            FEE         FEE                 FEATURE
- ---------------------------------------------------------------------------------------------
 <C>        <S>                            <C>         <C>          <C>
     A          Maximum 4.00% initial          No           No                   No
               sales charge(/2/),(/3/)
- ---------------------------------------------------------------------------------------------
     B        CDSC for a period of four       0.25%        0.50%         B shares convert to
                        years,                                         D shares automatically
               at a rate of 4.0% during                                  after approximately
              the first year, decreasing                                   ten years(/5/)
                         1.0%
                annually to 0.0%(/4/)
- ---------------------------------------------------------------------------------------------
     C          1.0% CDSC for one year        0.25%        0.55%                 No
             decreasing to 0.0% after the
                   first year(/6/)
- ---------------------------------------------------------------------------------------------
     D          Maximum 4.00% initial         0.25%         No                   No
                  sales charge(/3/)
</TABLE>    
 
- --------
(1) Initial sales charges are imposed at the time of purchase as a percentage
    of the offering price. Contingent deferred sales charges ("CDSCs") are
    imposed if the redemption occurs within the applicable CDSC time period.
    The charge will be assessed on an amount equal to the lesser of the
    proceeds of redemption or the cost of the shares being redeemed.
(2) Offered only to eligible investors. See "Purchase of Shares--Initial Sales
    Charge Alternatives--Class A and Class D Shares--Eligible Class A
    Investors."
   
(3) Reduced for purchases of $25,000 or more and waived for purchases of Class
    A shares by certain retirement plans and participants in connection with
    certain fee-based programs. Class A and Class D share purchases of
    $1,000,000 or more may not be subject to an initial sales charge but,
    instead may be subject to a 1.0% CDSC if redeemed within one year. Such
    CDSC may be waived in connection with certain fee-based programs. A 0.75%
    sales charge for 401(k) purchases over $1,000,000 will apply.     
   
(4) The CDSC may be modified in connection with certain fee-based programs.
        
(5) The conversion period for dividend reinvestment shares and the conversion
    and holding periods for certain retirement plans were modified. Also,
    Class B shares of certain other MLAM-advised mutual funds into which
    exchanges may be made have a ten-year conversion period. If Class B shares
    of a Portfolio of the Fund are exchanged for Class B shares of another
    MLAM-advised mutual fund, the conversion period applicable to the Class B
    shares acquired in the exchange will apply, and the holding period for the
    shares exchanged will be tacked onto the holding period for the shares
    acquired.
   
(6) The CDSC may be waived in connection with certain fee-based programs.     
 
                                      33
<PAGE>
 
                          INTERMEDIATE TERM PORTFOLIO
 
 
<TABLE>
<CAPTION>
                                             ACCOUNT
                                           MAINTENANCE DISTRIBUTION          CONVERSION
   CLASS          SALES CHARGE(/1/)            FEE         FEE                 FEATURE
- ---------------------------------------------------------------------------------------------
 <C>        <S>                            <C>         <C>          <C>
     A          Maximum 1.00% initial          No           No                   No
               sales charge(/2/),(/3/)
- ---------------------------------------------------------------------------------------------
     B         CDSC for one year, at a        0.25%        0.25%         B shares convert to
               rate of 1.0% during the                                 D shares automatically
                        first                                            after approximately
               year, decreasing to 0.0%                                    ten years(/5/)
                        after
                 the first year(/4/)
- ---------------------------------------------------------------------------------------------
     C          1.0% CDSC for one year        0.25%        0.25%                 No
             decreasing to 0.0% after the
                   first year(/6/)
- ---------------------------------------------------------------------------------------------
     D          Maximum 1.00% initial         0.10%         No                   No
                  sales charge(/3/)
</TABLE>
 
- --------
(1) Initial sales charges are imposed at the time of purchase as a percentage
    of the offering price. Contingent deferred sales charges ("CDSCs") are
    imposed if the redemption occurs within the applicable CDSC time period.
    The charge will be assessed on an amount equal to the lesser of the
    proceeds of redemption or the cost of the shares being redeemed.
(2) Offered only to eligible investors. See "Purchase of Shares--Initial Sales
    Charge Alternatives--Class A and Class D Shares--Eligible Class A
    Investors."
   
(3) Reduced for purchases of $100,000 or more and waived for purchases of
    Class A shares by certain retirement plans and participants in connection
    with certain fee-based programs. Class A and Class D share purchases of
    $1,000,000 or more may not be subject to an initial sales charge but,
    instead may be subject to a 0.20% CDSC if redeemed within one year. Such
    CDSC may be waived in connection with certain fee-based programs. A 0.30%
    sales charge for 401(k) purchases over $1,000,000 will apply.     
   
(4) The CDSC may be modified in connection with certain fee-based programs.
        
(5) The conversion period for dividend reinvestment shares and the conversion
    and holding periods for certain retirement plans were modified. Also,
    Class B shares of certain other MLAM-advised mutual funds into which
    exchanges may be made have a ten-year conversion period. If Class B shares
    of a Portfolio of the Fund are exchanged for Class B shares of another
    MLAM-advised mutual fund, the conversion period applicable to the Class B
    shares acquired in the exchange will apply, and the holding period for the
    shares exchanged will be tacked onto the holding period for the shares
    acquired.
   
(6) The CDSC may be waived in connection with in certain fee-based programs.
        
INITIAL SALES CHARGE ALTERNATIVES--CLASS A AND CLASS D SHARES
   
  Investors choosing the initial sales charge alternatives who are eligible to
purchase Class A shares should purchase Class A shares rather than Class D
shares because there is an account maintenance fee imposed on Class D shares.
       
  Sales charges for purchases of Class A and Class D shares of the Portfolios,
computed as indicated below, are reduced on larger purchases. The Distributor
may reallow as a discount all or a part of such sales charge to securities
dealers with whom it has agreements and will retain any portion of the sales
charge not reallowed. If 90% or more of the sales charge is reallowed to a
dealer, such dealer may be deemed to be an underwriter within the meaning of
the Securities Act of 1933 and subject to liability as such. The Distributor
will retain the entire sales charge on orders placed directly with it. The
sales charges applicable to the Portfolios, expressed as a percentage of the
gross public offering price and the net amount invested, and expected dealer
discounts, expressed as a percentage of the gross public offering price, are
as follows:     
 
                                      34
<PAGE>
 
<TABLE>
<CAPTION>
                                        CLASS A AND CLASS D SHARES
                                            OF HIGH INCOME AND
                                        INVESTMENT GRADE PORTFOLIOS
                            ---------------------------------------------------
                                              SALES LOAD AS A    DISCOUNT TO
                               SALES LOAD      PERCENTAGE OF   SELECT DEALERS
                             AS A PERCENTAGE    NET AMOUNT     AS A PERCENTAGE
AMOUNT OF PURCHASE          OF OFFERING PRICE    INVESTED*    OF OFFERING PRICE
- ------------------          ----------------- --------------- -----------------
<S>                         <C>               <C>             <C>
Less than $25,000..........       4.00%            4.17%            3.75%
$25,000 but less than
 $50,000...................       3.75             3.90             3.50
$50,000 but less than
 $100,000..................       3.25             3.36             3.00
$100,000 but less than
 $250,000..................       2.50             2.56             2.25
$250,000 but less than
 $1,000,000................       1.50             1.52             1.25
$1,000,000 and more**......       0.00             0.00             0.00
<CAPTION>
                                        CLASS A AND CLASS B SHARES
                                      OF INTERMEDIATE TERM PORTFOLIO
                            ---------------------------------------------------
                                              SALES LOAD AS A    DISCOUNT TO
                             SALES LOAD AS A   PERCENTAGE OF  SELECT DEALERS AS
                              PERCENTAGE OF     NET AMOUNT     A PERCENTAGE OF
AMOUNT OF PURCHASE           OFFERING PRICE      INVESTED*     OFFERING PRICE
- ------------------          ----------------- --------------- -----------------
<S>                         <C>               <C>             <C>
Less than $100,000.........       1.00%            1.01%            0.95%
$100,000 but less than
 $250,000..................       0.75             0.76             0.70
$250,000 but less than
 $500,000..................       0.50             0.50             0.45
$500,000 but less than
 $1,000,000................       0.30             0.30             0.27
$1,000,000 or more**.......       0.00             0.00             0.00*
</TABLE>
- --------
 *   Rounded to the nearest one-hundredth percent.
   
**   The initial sales charge may be waived on Class A and Class D purchases
     of $1,000,000 or more, and on Class A purchases by certain retirement
     plan investors and participants in certain fee-based programs. If the
     sales charge is waived in connection with a purchase of $1,000,000 or
     more, such purchases may be subject to a CDSC of 1.0% for the High Income
     and Investment Grade Portfolios or 0.20% for the Intermediate Term
     Portfolio if the shares are redeemed within one year after purchase. Such
     CDSC may be waived in connection with certain fee-based programs. The
     charge will be assessed on an amount equal to the lesser of the proceeds
     of redemption or the cost of the shares being redeemed. A sales charge of
     0.75% (with respect to the High Income and Investment Grade Portfolios)
     or 0.30% (with respect to the Intermediate Term Portfolio) will be
     imposed on purchases of $1 million or more of Class A or Class D shares
     by certain 401(k) plans.     
   
  The Distributor may reallow discounts to selected dealers and retain the
balance over such discounts. At times the Distributor may reallow the entire
sales charge to such dealers. Since securities dealers selling Class A and
Class D shares of the Fund will receive a concession equal to most of the
sales charge, they may be deemed to be underwriters under the Securities Act.
The proceeds from the account maintenance fees are used to compensate the
Distributor and Merrill Lynch (pursuant to a sub-agreement) for providing
continuing account maintenance activities.     
   
  For the fiscal year ended September 30, 1997, the High Income Portfolio,
Investment Grade Portfolio and Intermediate Term Portfolio sold 31,134,080,
28,203,393 and 8,879,479 Class A shares, respectively, for aggregate net
proceeds of $250,373,771, $318,761,187 and $101,009,465, respectively. The
gross sales charges for the sale of Class A shares of the High Income
Portfolio, Investment Grade Portfolio and Intermediate Term Portfolio were
$353,557, $48,809 and $3,867, respectively, of which $33,865, $4,495 and $281,
respectively, were received by the Distributor and $319,692, $44,314 and
$3,586, respectively, were received     
 
                                      35
<PAGE>
 
   
by Merrill Lynch. For the fiscal year ended September 30, 1997, the
Distributor received CDSC proceeds of $1,006 with respect to redemption within
one year after purchase of Class A shares purchased subject to a front-end
sales charge waiver of the Intermediate Term Portfolio. For the same period
the Distributor did not receive any CDSC proceeds with respect to redemption
within one year after purchase of Class A shares purchased subject to a front-
end sales charge waiver of the High Income Portfolio and Investment Grade
Portfolios.     
   
  For the fiscal year ended September 30, 1997, the High Income Portfolio,
Investment Grade Portfolio and Intermediate Term Portfolio sold 35,702,960,
2,634,267 and 4,009,184 Class D shares, respectively, for aggregate net
proceeds of $287,604,383, $29,755,828 and $45,468,396, respectively. The gross
sales charges for the sales of Class D shares of the High Income Portfolio,
Investment Grade Portfolio and Intermediate Term Portfolio were $1,816,156,
$108,119 and $22,778, respectively, of which $172,340, $10,022 and $1,225,
respectively, were received by the Distributor and $1,643,816, $98,097 and
$21,553, respectively, were received by Merrill Lynch. For the fiscal year
ended September 30, 1997, the Distributor received CDSC proceeds of $111,064,
$22,295 and $1,970 with respect to redemption within one year after purchase
of Class D shares purchased subject to a front-end sales charge waiver of the
High Income Portfolio, the Investment Grade Portfolio and the Intermediate
Term Portfolio, respectively.     
 
  Eligible Class A Investors. Class A shares are offered to a limited group of
investors and also will be issued upon reinvestment of dividends from
outstanding Class A shares. Investors that currently own Class A shares of a
Portfolio of the Fund in a shareholder account, including participants in the
Merrill Lynch Blueprint SM Program, are entitled to purchase additional Class
A shares of a Portfolio of the Fund in that account. Certain employer
sponsored retirement or savings plans, including eligible 401(k) plans, may
purchase Class A shares of a Portfolio of the Fund at net asset value provided
such plans meet the required minimum number of eligible employees or required
amount of assets advised by FAM or any of its affiliates. Class A shares are
available at net asset value to corporate warranty insurance reserve fund
programs provided that the program has $3 million or more initially invested
in MLAM-advised mutual funds. Also eligible to purchase Class A shares at net
asset value are participants in certain investment programs including TMA SM
Managed Trusts to which Merrill Lynch Trust Company provides discretionary
trustee services, collective investment trusts for which Merrill Lynch Trust
Company serves as trustee and purchases made in connection with certain fee-
based programs. In addition, Class A shares will be offered at net asset value
to Merrill Lynch & Co., Inc. and its subsidiaries and their directors and
employees and to members of the Boards of MLAM-advised investment companies,
including the Fund. Certain persons who acquired shares of certain MLAM-
advised closed-end funds in their initial offerings who wish to reinvest the
net proceeds from a sale of their closed-end fund shares of common stock in
shares of the Fund also may purchase Class A or Class D shares of a Portfolio
of the Fund if certain conditions set forth in the Statement of Additional
Information are met (for closed-end funds that commenced operations prior to
October 21, 1994). For example, Class A shares of a Portfolio of the Fund and
certain other MLAM-advised mutual funds are offered at net asset value to
shareholders of Merrill Lynch Senior Floating Rate Fund, Inc. ("Senior
Floating Rate Fund") and, if certain conditions set forth in the Statement of
Additional Information are met, to shareholders of Merrill Lynch Municipal
Strategy Fund, Inc. ("Municipal Strategy Fund") and Merrill Lynch High Income
Municipal Bond Fund, Inc. ("High Income Fund") who wish to reinvest the net
proceeds from a sale of certain of their shares of common stock pursuant to a
tender offer conducted by such funds in shares of the Fund and certain other
MLAM-advised mutual funds.
 
                                      36
<PAGE>
 
   
  As to purchase orders received by securities dealers prior to the close of
the New York Stock Exchange ("NYSE") (generally 4:00 p.m. New York City time)
on the day the order is placed with the Distributor, including orders received
after the close on the previous day, the applicable offering price will be
based on the net asset value determined as of 15 minutes after the close of the
NYSE on the day the order is placed with the Distributor, provided the order is
received by the Distributor not later than 30 minutes after the close of
business on the NYSE (generally 4:00 p.m., New York City time), on that day. If
the purchase orders are not received by the Distributor as of 30 minutes after
the close of business on the NYSE such orders will be deemed received on the
next business day. Any order may be rejected by the Distributor or the Fund.
Neither the Distributor nor securities dealers are permitted to withhold
placing orders to benefit themselves by a price change. The Fund reserves the
right to suspend the sale of its shares to the public in response to conditions
in the securities markets, or otherwise.     
 
  Reduced Initial Sales Charges. No initial sales charges are imposed upon
Class A and Class D shares issued as a result of the automatic reinvestment of
dividends or capital gains distributions. Class A and Class D sales charges
also may be reduced under a Right of Accumulation and a Letter of Intention.
Class A shares are offered at net asset value to certain eligible Class A
investors as set forth above under "Eligible Class A Investors." See
"Shareholder Services--Fee Based Programs."
   
  Provided applicable threshold requirements are met, either Class A and Class
D shares are offered at net asset value to Employee AccessSM Accounts available
through authorized employers. Subject to certain conditions Class A and Class D
shares are offered at net asset value to shareholders of Municipal Strategy
Fund and High Income Fund and Class A shares are offered at net asset value to
shareholders of Senior Floating Rate Fund who wish to reinvest in shares of the
Fund the net proceeds from a sale of certain of their shares of common stock,
pursuant to tender offers conducted by those funds.     
 
  Class D shares are offered at net asset value, without sales charge, to an
investor who has a business relationship with a Merrill Lynch Financial
Consultant if certain conditions set forth in the Statement of Additional
Information are met. Class D shares may be offered at net asset value in
connection with the acquisition of assets of other investment companies.
 
  Class D shares are offered with reduced sales charges and, in certain
circumstances, at net asset value, to participants in the Merrill Lynch
Blueprint SM Program.
 
  Additional information concerning these reduced initial sales charges is set
forth in the Statement of Additional Information.
 
DEFERRED SALES CHARGE ALTERNATIVES--CLASS B AND CLASS C SHARES
 
  Investors choosing the deferred sales charge alternatives should consider
Class B shares if they intend to hold their shares for an extended period of
time and Class C shares if they are uncertain as to the length of time they
intend to hold their assets in MLAM-advised mutual funds.
 
  The public offering price of Class B and Class C shares for investors
choosing the deferred sales charge alternatives is the next determined net
asset value per share without the imposition of a sales charge at the time of
purchase. As discussed below, Class B shares of the High Income and Investment
Grade Portfolios are subject to a four-year CDSC and Class B shares of the
Intermediate Term Portfolio are subject to a one
 
                                       37
<PAGE>
 
   
year CDSC, while Class C shares are subject only to a one-year CDSC. On the
other hand, approximately ten years after Class B shares are issued, such Class
B shares, together with shares issued upon dividend reinvestment with respect
to those shares, are automatically converted into Class D shares of the same
Portfolio and thereafter will be subject to lower continuing fees. Class C
shares of the Intermediate Term Portfolio are available only through the
Exchange Privilege. See "Conversion of Class B Shares to Class D Shares" below.
Both Class B and Class C shares of each Portfolio are subject to an account
maintenance fee of 0.25% of net assets. Class B and Class C shares of the High
Income and Investment Grade Portfolios are subject to distribution fees of
0.50% and 0.55%, respectively, of net assets. Both Class B and Class C shares
of the Intermediate Term Portfolio are subject to distribution fees of 0.25% of
net assets. See "Distribution Plans." The proceeds from the account maintenance
fees are used to compensate the Distributor and Merrill Lynch (pursuant to a
sub-agreement) for providing continuing account maintenance activities.     
   
  Class B and Class C shares are sold without an initial sales charge so that
the Fund will receive the full amount of the investor's purchase payment.
Merrill Lynch compensates its Financial Consultants for selling Class B and
Class C shares at the time of purchase from its own funds. See "Distribution
Plans" below.     
   
  Proceeds from the CDSC and the distribution fee are paid to the Distributor
and are used in whole or in part by the Distributor to defray the expenses of
dealers (including Merrill Lynch) related to providing distribution-related
services to the Fund in connection with the sale of the Class B and Class C
shares, such as the payment of compensation to Financial Consultants for
selling Class B and Class C shares, from its own funds. The combination of the
CDSC and the ongoing distribution fee facilitates the ability of the Fund to
sell the Class B and Class C shares without a sales charge being deducted at
the time of purchase. Approximately ten years after issuance, Class B shares of
a Portfolio will convert automatically into Class D shares of that Portfolio,
which are subject to an account maintenance fee but no distribution fee; Class
B shares of certain other MLAM-advised mutual funds into which exchanges may be
made convert into Class D shares automatically after approximately eight years.
If Class B shares of the Fund are exchanged for Class B shares of another MLAM-
advised mutual fund, the conversion period applicable to the Class B shares
acquired in the exchange will apply, and the holding period for the shares
exchanged will be tacked onto the holding period for the shares acquired.     
 
  Imposition of the CDSC and the distribution fee on Class B and Class C shares
is limited by the NASD asset-based sales charge rule. See "Limitations on the
Payment of Deferred Sales Charges" below. The proceeds from the ongoing account
maintenance fee are used to compensate Merrill Lynch for providing continuing
account maintenance activities. Class B shareholders of the Fund exercising the
exchange privilege described under "Shareholder Services--Exchange Privilege"
will continue to be subject to the Fund's CDSC schedule if such schedule is
higher than the CDSC schedule relating to the Class B shares acquired as a
result of the exchange.
   
  Contingent Deferred Sales Charges--Class B Shares. Class B shares that are
redeemed within four years of purchase for the High Income and Investment Grade
Portfolios, or within one year of purchase for the Intermediate Term Portfolio,
may be subject to a CDSC at the rates set forth below charged as a percentage
of the dollar amount subject thereto. The charge will be assessed on an amount
equal to the lesser of the proceeds of redemption or the cost of the shares
being redeemed. Accordingly, no CDSC will be imposed on increases in net asset
value above the initial purchase price. In addition, no CDSC will be assessed
on shares derived from reinvestment of dividends or capital gains
distributions.     
 
                                       38
<PAGE>
 
  The following table sets forth the rates of the CDSC on Class B shares:
 
HIGH INCOME PORTFOLIO AND INVESTMENT GRADE PORTFOLIO:
<TABLE>
<CAPTION>
                                                            CONTINGENT DEFERRED
                                                             SALES CHARGE AS A
    YEAR SINCE                                                 PERCENTAGE OF
     PURCHASE                                                  DOLLAR AMOUNT
   PAYMENT MADE                                              SUBJECT TO CHARGE
   ------------                                             -------------------
    <S>                                                     <C>
    0-1....................................................        4.0%
    1-2....................................................        3.0%
    2-3....................................................        2.0%
    3-4....................................................        1.0%
    4 and thereafter.......................................        0.0%
</TABLE>
   
  For the fiscal year ended September 30, 1997, the Distributor received
7,883,414 in CDSCs with respect to redemptions of Class B shares, amounting to
6,548,694 and 1,334,720 in the High Income and the Investment Grade Portfolios,
respectively, all of which were paid to Merrill Lynch.     
 
INTERMEDIATE TERM PORTFOLIO:
 
<TABLE>
<CAPTION>
                                                            CONTINGENT DEFERRED
                                                             SALES CHARGE AS A
    YEAR SINCE                                                 PERCENTAGE OF
     PURCHASE                                                  DOLLAR AMOUNT
   PAYMENT MADE                                              SUBJECT TO CHARGE
   ------------                                             -------------------
    <S>                                                     <C>
    0-1....................................................        1.0%
    Thereafter.............................................        0.0%
</TABLE>
   
  For the fiscal year ended September 30, 1997, the Distributor received CDSCs
of $187,231 for the Intermediate Term Portfolio with respect to redemptions of
Class B shares all of which were paid to Merrill Lynch. Additional CDSCs
payable to the Distributor may have been waived or converted to a contingent
obligation in connection with a shareholder's participation in certain fee-
based programs.     
 
  In determining whether a CDSC is applicable to a redemption, the calculation
will be determined in the manner that results in the lowest possible applicable
rate being charged. Therefore, with respect to the High Income and Investment
Grade Portfolios, it will be assumed that the redemption is first of shares
held for over four years or shares acquired pursuant to reinvestment of
dividends or distributions and then of shares held longest during the four-year
period. It will be assumed, with respect to the Intermediate Term Portfolio,
that the redemption is of shares held for over one year or shares acquired
pursuant to reinvestment of dividends or distributions and then of shares held
longest during the one-year period. The CDSC will not be applied to dollar
amounts representing an increase in the net asset value since the time of
purchase. A transfer of shares from a shareholder's account to another account
will be assumed to be made in the same order as a redemption.
 
  To provide an example, assume an investor purchased 100 Class B shares of the
High Income Portfolio at $10 per share (at a cost of $1,000) and in the third
year after purchase, the net asset value per share is $12 and, during such
time, the investor has acquired 10 additional shares upon dividend
reinvestment. If at such time the investor makes his first redemption of 50
shares (proceeds of $600), 10 shares will not be subject to charge because of
dividend reinvestment. With respect to the remaining 40 shares, the CDSC is
applied only to the original cost of $10 per share and not to the increase in
net asset value of $2 per share. Therefore, $400
 
                                       39
<PAGE>
 
of the $600 redemption proceeds will be charged a CDSC at a rate of 2.0% (the
applicable rate in the third year after purchase) for shares purchased on or
after October 21, 1994.
   
  The Class B CDSC is waived on redemptions of shares made in connection with
certain post-retirement withdrawals from an Individual Retirement Account
("IRA") or other retirement plan or following the death or disability (as
defined in the Code) of a shareholder. The Class B CDSC also is waived on
redemptions of shares in connection with certain group plans through the
Merrill Lynch Blueprint SM Program. See "Shareholder Services--Merrill Lynch
Blueprint SM Program." The contingent deferred sales charge is waived on
redemption of shares by certain eligible 401(a) and eligible 401(k) plans. The
CDSC is also waived for any Class B shares which are purchased by an eligible
401(k) or eligible 401(a) plan and are rolled over into a Merrill Lynch or
Merrill Lynch Trust Company custodied Individual Retirement Account and held
in such account at the time of redemption and for any Class B shares that were
acquired and held at the time of the redemption in an Employee Access SM
Account available through employers providing eligible 401(k) plans. The Class
B CDSC also is waived for any Class B shares that are purchased within
qualifying Employee Access SM Accounts. Additional information concerning the
waiver of the Class B CDSC is set forth in the Statement of Additional
Information. The terms of the CDSC may be modified for redemptions made in
connection with certain fee-based programs. See "Shareholder Services--Fee
Based Programs."     
   
  Contingent Deferred Sales Charges--Class C Shares. Class C shares which are
redeemed within one year of purchase may be subject to a 1.0% CDSC charged as
a percentage of the dollar amount subject thereto. The charge will be assessed
on an amount equal to the lesser of the proceeds of redemption or the cost of
the shares being redeemed. Accordingly, no Class C CDSC will be imposed on
increases in net asset value above the initial purchase price. In addition, no
Class C CDSC will be assessed on shares derived from reinvestment of dividends
or capital gains distributions. The Class C CDSC may be waived in connection
with certain fee-based programs. See "Shareholder Services--Fee-Based
Programs."     
 
  The following table sets forth the rates of the contingent deferred sales
charge on Class C shares of the High Income, Investment Grade and Intermediate
Term Portfolios:
<TABLE>
<CAPTION>
                                                            CONTINGENT DEFERRED
                                                             SALES CHARGE AS A
    YEAR SINCE                                                 PERCENTAGE OF
     PURCHASE                                                  DOLLAR AMOUNT
   PAYMENT MADE                                              SUBJECT TO CHARGE
   ------------                                             -------------------
    <S>                                                     <C>
    0-1....................................................        1.0%
    Thereafter.............................................        0.0%
</TABLE>
   
  For the fiscal year ended September 30, 1997, the Distributor received CDSCs
of $293,302 for the High Income Portfolio, $38,878 for the Investment Grade
Portfolio and $2,668 for the Intermediate Term Portfolio with respect to
redemptions of Class C shares, all of which were paid to Merrill Lynch.     
 
  In determining whether a Class C CDSC is applicable to a redemption, the
calculation will be determined in the manner that results in the lowest
possible rate being charged. Therefore, it will be assumed that the redemption
is first of shares held for over one year or shares acquired pursuant to
reinvestment of dividends or distributions and then of shares held longest
during the one-year period. The charge will not be applied to dollar amounts
representing an increase in the net asset value since the time of purchase. A
transfer of shares from a shareholder's account to another account will be
assumed to be made in the same order as a redemption.
 
                                      40
<PAGE>
 
  Conversion of Class B Shares to Class D Shares. After approximately ten years
(the "Conversion Period"), Class B shares will be converted automatically into
Class D shares of the relevant Portfolio. Class D shares are subject to an
ongoing account maintenance fee of 0.25% of net assets for the High Income and
Investment Grade Portfolios and 0.10% of net assets for the Intermediate Term
Portfolio, but are not subject to the distribution fee that is borne by Class B
shares. Automatic conversion of Class B shares into Class D shares will occur
at least once each month (on the "Conversion Date") on the basis of the
relative net asset values of the shares of the two classes on the Conversion
Date, without the imposition of any sales load, fee or other charge. Conversion
of Class B shares to Class D shares will not be deemed a purchase or sale of
the shares for federal income tax purposes.
 
  In addition, shares purchased through reinvestment of dividends on Class B
shares also will convert automatically to Class D shares. The Conversion Date
for dividend reinvestment shares will be calculated taking into account the
length of time the shares underlying such dividend reinvestment shares were
outstanding. If at a Conversion Date the conversion of Class B shares to Class
D shares of a Portfolio in a single account will result in less than $50 worth
of Class B shares being left in the account, all of the Class B shares of that
Portfolio held in the account on the Conversion Date will be converted to Class
D shares of the same Portfolio.
 
  Class B shareholders holding share certificates must deliver such
certificates to the Transfer Agent at least one week prior to the Conversion
Date applicable to those shares. Shares evidenced by certificates that are not
received by the Transfer Agent at least one week prior to the Conversion Date
will be converted into Class D shares on the next scheduled Conversion Date
after such certificates are delivered.
 
  In general, Class B shares of MLAM-advised equity mutual funds will convert
approximately eight years after initial purchase, and Class B shares of MLAM-
advised taxable and tax-exempt fixed-income mutual funds will convert
approximately ten years after initial purchase. If, during the Conversion
Period, a shareholder exchanges Class B shares with an eight-year Conversion
Period for Class B shares with a ten-year Conversion Period, or vice versa, the
Conversion Period applicable to the Class B shares acquired in the exchange
will apply, and the holding period for the shares exchanged will be tacked onto
the holding period for the shares acquired.
 
  The Conversion Period is modified for shareholders who purchased Class B
shares through certain retirement plans which qualified for a waiver of the
CDSC normally imposed on purchases of Class B shares ("Class B Retirement
Plans"). When the first share of any MLAM-advised mutual fund purchased by a
Class B Retirement Plan has been held for ten years (i.e., ten years from the
date the relationship between MLAM-advised mutual funds and the Class B
Retirement Plan was established), all Class B shares of all MLAM-advised mutual
funds held in that Class B Retirement Plan will be converted into Class D
shares of the appropriate funds. Subsequent to such conversion, that Class B
Retirement Plan will be sold Class D shares of the appropriate funds at net
asset value per share.
 
  In the event that all Class B shares of a Portfolio held in a single account
are converted to Class D shares on a Conversion Date, shares representing
reinvestment of declared but unpaid dividends on those Class B shares also will
be converted to Class D shares; otherwise, only Class B shares purchased
through reinvestment of dividends paid will convert to Class D shares on the
Conversion Date.
 
  The Conversion Period may also be modified for retirement plan investors who
participate in certain fee-based programs. See "Shareholder Services--Fee-Based
Programs."
 
                                       41
<PAGE>
 
DISTRIBUTION PLANS
 
  The Fund has adopted separate distribution plans for Class B, Class C and
Class D shares pursuant to Rule 12b-1 under the Investment Company Act (each a
"Distribution Plan") with respect to the account maintenance and/or
distribution fees paid by the Fund to the Distributor with respect to such
classes. The Class B and Class C Distribution Plans provide for the payment of
account maintenance fees and distribution fees, and the Class D Distribution
Plan provides for the payment of account maintenance fees.
 
  The Distribution Plans for Class B, Class C and Class D shares each provide
that the Fund pays the Distributor an account maintenance fee relating to the
shares of the relevant class of a Portfolio, accrued daily and paid monthly, at
the annual rate of 0.25% of average daily net assets of the relevant class and
Portfolio for Class B, Class C and Class D shares of the High Income and
Investment Grade Portfolios, and for Class B and Class C shares of the
Intermediate Term Portfolio, and 0.10% of average daily net assets attributable
to the relevant class and Portfolio for Class D shares of the Intermediate Term
Portfolio in order to compensate the Distributor and Merrill Lynch (pursuant to
a sub-agreement) in connection with account maintenance activities.
 
  The Distribution Plans for Class B and Class C shares each provide that the
Fund also pays the Distributor a distribution fee relating to the shares of the
relevant class, accrued daily and paid monthly, at the annual rate of 0.50% and
0.55%, respectively, of average daily net assets attributable to the relevant
class and Portfolio for Class B and Class C shares of the High Income and
Investment Grade Portfolios, and 0.25% of average daily net assets attributable
to the relevant class and Portfolio for Class B and Class C shares of the
Intermediate Term Portfolio, in order to compensate the Distributor and Merrill
Lynch (pursuant to a sub-agreement) for providing shareholder and distribution
services, and bearing certain distribution-related expenses of the Fund,
including payments to financial consultants for selling Class B and Class C
shares of the Portfolio. The Distribution Plans relating to Class B and Class C
shares are designed to permit an investor to purchase Class B and Class C
shares through dealers without the assessment of an initial sales charge and at
the same time permit the dealer to compensate its financial consultants in
connection with the sale of the Class B and Class C shares. In this regard, the
purpose and function of the ongoing distribution fees and the CDSC are the same
as those of the initial sales charge with respect to the Class A and Class D
shares of the Fund in that the CDSC and ongoing distribution fees provide for
the financing of the distribution of the Fund's Class B and Class C shares.
 
  Prior to July 6, 1993, the Fund paid the Distributor an ongoing distribution
fee, accrued daily and paid monthly, at the annual rate of 0.75% (in the case
of the High Income Portfolio and Investment Grade Portfolio) and 0.50% (in the
case of the Intermediate Term Portfolio) of the average daily net assets for
the Class B shares of the respective Portfolios (the "Prior Plan") to
compensate the Distributor and Merrill Lynch for providing account maintenance
and distribution-related activities and services to Class B shareholders. The
fee rate payable and the services provided under the Prior Plan are identical
to the aggregate fee rate payable and the services provided under the
Distribution Plan, the difference being that the account maintenance and
distribution services have been unbundled.
   
  For the fiscal year ended September 30, 1997 the High Income Portfolio,
Investment Grade Portfolio and Intermediate Term Portfolio paid the Distributor
$36,108,272, $4,943,306 and $950,958, respectively, pursuant to the Class B
Distribution Plan (based on average net assets subject to such Class B
Distribution Plan of approximately $4.8 billion, $659.1 million and $190.2
million, respectively), all of which were paid to     
 
                                       42
<PAGE>
 
   
Merrill Lynch for providing account maintenance and distribution-related
activities and services in connection with Class B shares. For the fiscal year
ended September 30, 1997, the High Income Portfolio, the Investment Grade
Portfolio and the Intermediate Term Portfolio, paid the Distributor $3,921,960,
$471,625 and $35,211, respectively, pursuant to the Class C Distribution Plan
(based on average net assets subject to such Class C Distribution Plan of
approximately $490.2 million, $59.0 million and $7.0 million, respectively) all
of which were paid to Merrill Lynch for providing account maintenance and
distribution-related activities and services in connection with Class C shares.
For the fiscal year ended September 30, 1997, the High Income Portfolio, the
Investment Grade Portfolio and the Intermediate Term Portfolio, paid the
Distributor $972,042, $176,298 and $51,884, respectively, pursuant to the Class
D Distribution Plan (based on average net assets subject to such Class D
Distribution Plan of approximately $388.8 million, $70.5 million and $51.9
million, respectively), all of which were paid to Merrill Lynch for providing
account maintenance activities in connection with Class D shares.     
   
  The payments under the Distribution Plans, as was the case with the Prior
Plan, are based on a percentage of average daily net assets attributable to the
relevant shares regardless of the amount of expenses incurred and, accordingly,
distribution-related revenues from the Distribution Plans may be more or less
than distribution-related expenses. Information with respect to the
distribution-related revenues and expenses is presented to the Directors for
their consideration in connection with their deliberations as to the
continuance of the Class B and Class C Distribution Plans. This information is
presented annually as of December 31 of each year on a "fully allocated
accrual" basis and quarterly on a "direct expense and revenue/cash" basis. On
the fully allocated accrual basis, revenues consist of the account maintenance
fees, distribution fees, CDSCs and certain other related revenues, and expenses
consist of financial consultant compensation, branch office and regional
operation center selling and transaction processing expenses, advertising,
sales promotion and marketing expenses, corporate overhead and interest
expense. On the direct expense and revenue/cash basis, revenues consist of the
account maintenance fees, distribution fees and CDSCs and the expenses consist
of financial consultation compensation.     
          
  As of December 31, 1996, the last date at which fully allocated data is
available, the fully allocated accrual expenses incurred by the Distributor and
Merrill Lynch exceeded fully allocated accrual revenues for such period by
approximately $61,487,000 (1.36% of Class B net assets at that date) with
respect to the High Income Portfolio and approximately $6,714,000 (0.94% of
Class B net assets at that date) with respect to the Investment Grade Portfolio
and approximately $416,000 (0.20% of Class B net assets at that date) with
respect to the Intermediate Term Portfolio. As of September 30, 1997, direct
cash revenues received with respect to the Class B shares of the High Income
Portfolio for the period since October 21, 1988 (commencement of operations)
exceeded direct cash expenses by $53,670,470 (representing 0.98% of High Income
Portfolio's Class B net assets at that date). As of September 30, 1997, direct
cash revenues received with respect to the Class B shares of the Investment
Grade Portfolio for the period since October 21, 1988 (commencement of
operations) exceeded direct cash expenses by $18,967,831 (representing 3.28% of
Investment Grade Portfolio's Class B net assets at that date). As of September
30, 1997, direct cash revenues received with respect to the Class B shares of
the Intermediate Term Portfolio for the period since November 13, 1992
(commencement of operations) exceeded direct cash expenses by $3,303,096
(representing 2.23% of Intermediate Term Portfolio's Class B net assets at that
date).     
   
  With respect to Class C shares, as of December 31, 1996, the last date at
which fully allocated data is available, the fully allocated accrual expenses
incurred by the Distributor and Merrill Lynch exceeded fully     
 
                                       43
<PAGE>
 
   
allocated accrual revenues for such period by approximately $1,848,000 (0.44%
of Class C net assets at that date) with respect to the High Income Portfolio
and approximately $200,000 (0.30% of Class C net assets at that date) with
respect to the Investment Grade Portfolio and approximately $10,000 (0.10% of
Class C net assets at that date) with respect to Intermediate Term Portfolio.
As of September 30, 1997, direct cash revenues received with respect to the
Class C shares of the High Income Portfolio for the period since October 21,
1994 (commencement of operations) exceeded direct cash expenses by $3,876,944
(representing 0.61% of High Income Portfolio's Class C net assets at that
date). As of September 30, 1997, direct cash revenues received with respect to
the Class C shares of the Investment Grade Portfolio for the period since
October 21, 1994 (commencement of operations) exceeded direct cash expenses by
$603,762 (representing 1.21% of Investment Grade Portfolio's Class C net assets
at that date). As of September 30, 1997, direct cash revenues received with
respect to the Class C shares of the Intermediate Term Portfolio for the period
since October 21, 1994 (commencement of operations) exceeded direct cash
expenses by $73,312 (representing 4.67% of Intermediate Term Portfolio's Class
C net assets at that date).     
       
  The Fund has no obligation with respect to distribution and/or account
maintenance-related expenses incurred by the Distributor and Merrill Lynch in
connection with the Class B, Class C and Class D shares, and there is no
assurance that the Board of Directors of the Fund will approve the continuance
of the Distribution Plans from year to year. However, the Distributor intends
to seek annual continuation of the Distribution Plans. In their review of the
Distribution Plans, the Directors will be asked to take into consideration
expenses incurred in connection with the account maintenance and/or
distribution of each class of shares separately. The initial sales charges, the
account maintenance fee, the distribution fee and/or the CDSCs received with
respect to one class will not be used to subsidize the sale of shares of
another class. Payments of the distribution fee on Class B shares will
terminate upon conversion of those Class B shares into Class D shares as set
forth under "Deferred Sales Charge Alternatives--Class B and Class C Shares--
Conversion of Class B Shares to Class D Shares."
 
                              REDEMPTION OF SHARES
 
  The Fund is required to redeem for cash all shares of each Portfolio upon
receipt of a written request in proper form. The redemption price is the net
asset value per share next determined after the initial receipt of proper
notice of redemption in the case of Class A or Class D shares of the
Portfolios, and is the net asset value per share next determined after the
initial receipt of proper notice of redemption, less the applicable CDSC, if
any, in the case of Class B or Class C Shares of the Portfolios. Except for any
contingent deferred sales load which may be applicable to Class B or Class C
Shares of the three Portfolios, there will be no charge for redemption if the
redemption request is sent directly to the Transfer Agent. Shareholders
liquidating their total holdings also will receive upon redemption all
dividends declared on the shares redeemed. If a shareholder redeems all of the
shares in his account, he will receive, in addition to the net asset value of
the shares redeemed, a separate check representing all dividends declared but
unpaid. If a shareholder redeems a portion of the shares in his account, the
dividends declared but unpaid on the shares redeemed will be distributed on the
next dividend payment date.
 
  The value of shares at the time of redemption may be more or less than the
shareholder's cost, depending on the market value of the securities held by
each Portfolio at such time.
 
                                       44
<PAGE>
 
REDEMPTION
 
  A shareholder wishing to redeem shares may do so by tendering the shares
directly to the Transfer Agent, Merrill Lynch Financial Data Services, Inc.,
P.O. Box 45289, Jacksonville, Florida 32232-5289. Redemption requests delivered
other than by mail should be delivered to Merrill Lynch Financial Data
Services, Inc., 4800 Deer Lake Drive East, Jacksonville, Florida 32246-6484.
Proper notice of redemption in case of shares deposited with the Transfer Agent
may be accomplished by a written letter requesting redemption. Proper notice of
redemption in the case of shares for which certificates have been issued may be
accomplished by a written letter as noted above accompanied by certificates for
the shares to be redeemed. The notice in either event requires the signature(s)
of all persons in whose name(s) the shares are registered, signed exactly as
their name(s) appears on the Transfer Agent's register or on the certificate,
as the case may be. The signature(s) on the redemption request must be
guaranteed by an "eligible guarantor institution" as such is defined in Rule
17Ad-15 under the Securities Exchange Act of 1934, the existence and validity
of which may be verified by the Transfer Agent through the use of industry
publications. Notarized signatures are not sufficient. Examples of "eligible
guarantor institutions" include most commercial banks and broker dealers
(including, for example, Merrill Lynch branch offices). Information regarding
other financial institutions which qualify as "eligible guarantor institutions"
may be obtained from the Transfer Agent. In certain instances, the Transfer
Agent may require additional documents such as, but not limited to, trust
instruments, death certificates, appointments as executor or administrator, or
certificates of corporate authority. For shareholders redeeming directly with
the Transfer Agent, payment will be mailed within seven days after receipt of a
proper notice of redemption.
 
  At various times the Fund may be requested to redeem shares of a Portfolio
for which it has not yet received good payment. The Fund may delay or cause to
be delayed the mailing of a redemption check until such time, not exceeding ten
days, as it has assured itself that good payment (e.g., cash or certified check
drawn on a United States bank) has been collected for the purchase of such
shares. Normally, this delay will not exceed 10 days.
 
REPURCHASE
   
  The Fund will also repurchase shares of each Portfolio through a
shareholder's listed securities dealer. The Fund normally will accept orders to
repurchase shares by wire or telephone from dealers for their customers at the
net asset value next computed after receipt of the order by the dealer,
provided that the request for purchase is received by the dealer prior to the
close of business on the NYSE (generally, 4:00 p.m., New York time) on the day
received, and such request is received by the Fund from such dealer not later
than 30 minutes after the close of business on the NYSE on the same day.
Dealers have the responsibility of submitting such repurchase requests to the
Fund not later than 30 minutes after the close of business on the NYSE in order
to obtain that day's closing price.     
   
  The foregoing repurchase arrangements are for the convenience of shareholders
and do not involve a charge by the Fund (other than any applicable CDSC).
Securities firms that do not have selected dealer agreements with the
Distributor may impose a transaction charge on the shareholder for transmitting
the notice of repurchase to the Fund. Merrill Lynch may charge its customers a
processing fee (presently $5.35) to confirm a repurchase of shares to such
customers. Repurchases made directly through the Fund's Transfer Agent are not
subject to the processing fee. The Fund reserves the right to reject any order
for repurchase,     
 
                                       45
<PAGE>
 
   
which right of rejection might adversely affect shareholders seeking redemption
through the repurchase procedure. A shareholder whose order for repurchase is
rejected by the Fund, however, may redeem shares as set forth above.     
 
  Redemption payments will be made within seven days of the proper tender of
the certificates, if any, and stock power or letter requesting redemption, in
each instance with signatures guaranteed as noted above.
 
REINSTATEMENT PRIVILEGE--CLASS A AND CLASS D SHARES
 
  As described in further detail in the Statement of Additional Information,
holders of Class A or Class D shares of any of the three Portfolios who have
redeemed their shares have a privilege to reinstate their accounts by
purchasing shares of the same class at net asset value without a sales charge
up to the dollar amount redeemed. The reinstatement privilege may be exercised
by sending a notice of exercise along with a check for the amount to be
reinstated to the Transfer Agent within 30 days after the date the request for
redemption was accepted by the Transfer Agent or the Distributor.
Alternatively, the reinstatement privilege may be exercised through the
investor's Merrill Lynch Financial Consultant within 30 days after the date the
request for redemption was accepted by the Transfer Agent or Distributor. The
reinstatement will be made at the net asset value per share next determined
after the notice of reinstatement is received and cannot exceed the amount of
the redemption proceeds.
 
                       DIVIDENDS, DISTRIBUTIONS AND TAXES
 
DIVIDENDS AND DISTRIBUTIONS
 
  It is the Fund's intention to distribute substantially all of the net
investment income of each Portfolio, if any. The net investment income of each
Portfolio is declared as dividends daily immediately prior to the determination
of the net asset value of each Portfolio on that day and is reinvested monthly
in additional full and fractional shares of each Portfolio at net asset value
unless the shareholder elects to receive such dividends in cash. The net
investment income of each Portfolio for dividend purposes consists of interest
and dividends earned on portfolio securities, less expenses, in each case
computed since the most recent determination of net asset value. Expenses of
each Portfolio, including the advisory fee and any account maintenance and/or
distribution fees (if applicable), are accrued daily. Shares will accrue
dividends as long as they are issued and outstanding. The per share dividends
and distributions on Class B and Class C shares will be lower than the per
share dividends and distributions on Class A and Class D shares as a result of
the account maintenance, distribution and higher transfer agency fees
applicable to the Class B and Class C shares. Similarly, the per share
dividends and distributions on Class D shares will be lower than the per share
dividends and distributions on Class A shares as a result of the account
maintenance fees applicable with respect to the Class D shares. See "Additional
Information--Determination of Net Asset Value." Shares are issued and
outstanding as of the settlement date of a purchase order to the settlement
date of a redemption order.
 
  In order to avoid a four percent nondeductible excise tax, a regulated
investment company must distribute to its shareholders during the calendar year
an amount equal to 98 percent of the Fund's investment company income, with
certain adjustments, for such calendar year, plus 98 percent of the Fund's
capital gain net income for the one-year period ending on October 31 of such
calendar year. All net realized long- or
 
                                       46
<PAGE>
 
short-term capital gains of the Fund, if any, including gains from option and
futures contract transactions, are declared and distributed to the shareholders
of the Portfolio or Portfolios to which such gains are attributable annually
after the close of the Fund's fiscal year.
 
  See "Shareholder Services--Automatic Reinvestment of Dividends and Capital
Gain Distributions" for information concerning the manner in which dividends
and distributions may be automatically reinvested in shares of any Portfolio.
Shareholders may elect in writing to receive any such dividends or
distributions, or both, in cash. Dividends and distributions are taxable to
shareholders as discussed below whether they are reinvested in shares of any
Portfolio or received in cash.
 
FEDERAL INCOME TAXES
 
  The Fund has in the past elected the special tax treatment afforded regulated
investment companies under the Internal Revenue Code of 1986 (the "Code"). The
Fund believes that each Portfolio has qualified for such treatment and intends
to continue to qualify therefor. If it so qualifies, a Portfolio (but not its
shareholders) will be relieved of federal income tax on the amount it
distributes to Class A, Class B, Class C and Class D shareholders (together,
the "shareholders"). If in any taxable year the Fund does not qualify as a
regulated investment company, all of its taxable income will be taxed to the
Portfolio at corporate rates. Under the Code, each Portfolio of the Fund is
treated as a separate corporation for federal income tax purposes and, thus,
each Portfolio will be required to satisfy the qualification requirements under
the Code for regulated investment company treatment.
   
  The Fund contemplates declaring as dividends substantially all of its net
investment income. See "Dividends and Distributions." Dividends paid by the
Fund from a Portfolio's investment income and distributions of a Portfolio's
net realized short-term capital gains are taxable to shareholders as ordinary
income. Dividends and distributions will be taxable to shareholders as ordinary
income or capital gains, whether received in cash or reinvested in additional
shares of the Fund. Merrill Lynch Financial Data Services, Inc., the Fund's
transfer agent, will send each shareholder a monthly dividend statement which
will include the amount of dividends paid and identify whether such dividends
represent ordinary income or capital gains.     
   
  Upon sale or exchange of shares of a Portfolio, a shareholder will realize
short-or long-term capital gain or loss, depending upon the shareholder's
holding period in the Portfolio shares. However, if a shareholder's holding
period in his shares is six months or less, any capital loss realized from a
sale or exchange of such shares must be treated as long-term capital loss to
the extent of capital gains dividends received with respect to such shares.
Under the Taxpayer Relief Act of 1997 (the "1997 Tax Act"), the maximum tax
rates applicable to net capital gains recognized by individuals and other non-
corporate taxpayers are (i) the same as ordinary income rates for capital
assets held for one year or less, (ii) 28% for capital assets held for more
than one year but not more than 18 months and (iii) 20% for capital assets held
for more than 18 months. Generally, not later than 60 days after the close of
its taxable year. The Fund will provide its shareholders with a written notice
designating the amount of capital gain dividends in the different categories of
capital gain referred to above. Shareholders should consult their tax advisors
regarding the availability and effect of a certain tax election to mark-to-
market shares of a Portfolio held on January 1, 2001. Capital gains or losses
recognized by corporate shareholders are subject to tax at the ordinary income
tax rates applicable to corporations. The new tax rates for capital gains under
the 1997 Tax Act described above apply to distributions of capital gain
dividends by regulated investment companies ("RICs") such as the Fund as well
as to sales and exchanges of shares in RICs such as the Fund.     
 
                                       47
<PAGE>
 
       
  A Portfolio may recognize interest attributable to it from holding zero
coupon securities. Current federal law requires that, for most zero coupon
securities, the Portfolio must accrue a portion of the discount at which the
security was purchased as income each year even though the Portfolio receives
no interest payment in cash on the security during the year. In addition, the
Fund may invest in pay-in-kind securities on which payments of interest consist
of securities rather than cash. As an investment company, each Portfolio must
pay out substantially all of its net investment income each year. Accordingly,
a Portfolio may be required to pay out as an income distribution each year an
amount which is greater than the total amount of cash interest the Fund
actually received. Such distributions will be made from the cash assets of the
Fund or by sales of portfolio securities, if necessary. The Fund may realize a
gain or loss from such sales.
 
  Some shareholders may be subject to a 31% withholding tax on ordinary income
dividends, capital gains distributions and redemption payments ("backup
withholding"). Generally, shareholders subject to backup withholding will be
those for whom no certified taxpayer identification number is on file with the
Fund or who, to the Fund's knowledge, have furnished an incorrect number. An
investor when establishing an account must certify under penalty of perjury
that such number is correct and that he is not otherwise subject to backup
withholding.
 
  No gain or loss will be recognized by Class B shareholders on the conversion
of their Class B shares into Class D shares. A shareholder's basis in the Class
D shares acquired will be the same as such shareholder's basis in the Class B
shares converted, and the holding period of the acquired Class D shares will
include the holding period for the converted Class B shares.
 
  Dividends to shareholders who are nonresident aliens, trusts, estates,
partnerships or corporations may be subject to a 30% United States withholding
tax unless a reduced rate of withholding is provided under an applicable
treaty. Shareholders who are nonresident aliens or foreign entities are urged
to consult their own tax advisers concerning the applicability of the United
States withholding tax.
 
  For shares of a Portfolio of the Fund acquired after October 3, 1989, if a
shareholder exercises his exchange privilege within 90 days after the date such
shares were acquired to acquire shares in another Portfolio of the Fund or a
second Fund ("New Fund"), then the loss, if any, recognized on the exchange
will be reduced (or the gain, if any, increased) to the extent the load charge
paid to the Fund reduces any load charge such shareholder would have been
required to pay on the acquisition of the New Fund shares in the absence of the
exchange privilege. Instead, such load charge will be treated as an amount paid
for the New Fund shares and will be included in the shareholder's basis for
such shares.
 
  Under another provision of the Code, any dividend declared by the Fund to
shareholders of record in October, November, or December of any year and made
payable to shareholders of record in such a month will be deemed to have been
received on December 31 of such year if actually paid during the following
January.
 
  A loss realized on a sale or exchange of shares of the Fund will be
disallowed if other Fund shares are acquired (whether through the automatic
reinvestment of dividends or otherwise) within a 61-day period beginning 30
days before and ending 30 days after the date that the shares are disposed of.
In such a case, the basis of the shares acquired will be adjusted to reflect
the disallowed loss.
 
                                       48
<PAGE>
 
  The foregoing is a general and abbreviated summary of the applicable
provisions of the Code and Treasury Regulations presently in effect. For the
complete provisions, reference should be made to the pertinent Code sections
and the Regulations promulgated thereunder. The Code and Regulations are
subject to change by legislative or administrative action either prospectively
or retroactively.
 
  The Statement of Additional Information describes the effect of other
provisions of the Code on the Fund's shareholders.
 
  Ordinary income and capital gains dividends may also be subject to state and
local taxes.
 
  Investors are urged to consult their attorneys or tax advisers regarding
specific questions as to federal, foreign, state or local taxes.
 
                             PORTFOLIO TRANSACTIONS
 
  Subject to policies established by the Board of Directors of the Fund, the
Investment Adviser is responsible for the Fund's portfolio decisions and the
placing of the Fund's portfolio transactions. With respect to such
transactions, the Investment Adviser seeks to obtain the best net results for
the Fund, taking into account such factors as price (including the applicable
brokerage commission or dealer spread), size of order, difficulty of execution
and operational facilities of the firm involved and the firm's risk in
positioning a block of securities. While the Investment Adviser generally seeks
reasonably competitive commission rates, the Fund will not necessarily be
paying the lowest commission or spread available.
 
  No Portfolio has any obligation to deal with any dealer or group of dealers
in the execution of transactions in portfolio securities. Subject to the policy
established by the Board of Directors, the Investment Adviser is primarily
responsible for the portfolio decisions of each Portfolio and the placing of
its portfolio transactions. In placing orders, it is the policy of each
Portfolio to obtain the best price and execution for its transactions.
Affiliated persons of the Fund, including Merrill Lynch, may serve as its
broker in over-the-counter transactions conducted on an agency basis.
   
  For the fiscal year ended September 30, 1997, the portfolio turnover rates
for the High Income Portfolio, the Investment Grade Portfolio and the
Intermediate Portfolio were 38.58%, 113.46% and 76.99%, respectively. High
portfolio turnover involves correspondingly greater transaction costs in the
form of commissions and dealer spreads, which are borne directly by the Fund.
    
                              SHAREHOLDER SERVICES
 
  The Fund offers a number of shareholder services described below which are
designed to facilitate investment in shares of its Portfolios. Full details as
to each service and copies of the various plans described below can be obtained
from the Fund, the Distributor or Merrill Lynch. Certain of these services are
available only to U.S. investors.
 
                                       49
<PAGE>
 
INVESTMENT ACCOUNT
 
  Each shareholder whose account is maintained with the Transfer Agent has an
Investment Account and will receive statements, at least quarterly, from the
Transfer Agent. These statements will serve as transaction confirmations for
automatic investment purchases and the reinvestment of ordinary income
dividends and long-term capital gain distributions. These statements will also
show any other activity in the account since the previous statement.
Shareholders will receive separate transaction confirmations for each purchase
or sale transaction other than automatic investment purchases and the
reinvestments of ordinary income dividends and long-term capital gain
distributions. A shareholder may make additions to his Investment Account at
any time by purchasing shares at the applicable public offering price either
through a securities dealer that has entered into a selected dealer agreement
with the Distributor or by mail directly to the Transfer Agent, acting as agent
for the Distributor.
 
  Shareholders also may maintain their accounts through Merrill Lynch. Upon the
transfer of shares out of a Merrill Lynch brokerage account, an Investment
Account in the transferring shareholder's name will be opened automatically,
without charge, at the Transfer Agent. Shareholders considering transferring
their Class A or Class D shares from Merrill Lynch to another brokerage firm or
financial institution should be aware that, if the firm to which the Class A or
Class D shares are to be transferred will not take delivery of shares of a
Portfolio, a shareholder either must redeem the Class A or Class D shares
(paying any applicable CDSC) so that the cash proceeds can be transferred to
the account at the new firm or such shareholder must continue to maintain an
Investment Account at the Transfer Agent for those Class A or Class D shares.
Shareholders interested in transferring their Class B or Class C shares from
Merrill Lynch and who do not wish to have an Investment Account maintained for
such shares at the Transfer Agent may request their new brokerage firm to
maintain such shares in an account registered in the name of the brokerage firm
for the benefit of the shareholder. Shareholders considering transferring a
tax-deferred retirement account such as an individual retirement account from
Merrill Lynch to another brokerage firm or financial institution should be
aware that, if the firm to which the retirement account is to be transferred
will not take delivery of shares of a Portfolio, a shareholder must either
redeem the shares (paying any applicable CDSC) so that the cash proceeds can be
transferred to the account at the new firm, or such shareholder must continue
to maintain a retirement account at Merrill Lynch for those shares.
 
  Share certificates are issued only for full shares and only upon the specific
request of the shareholder. Issuance of certificates representing all or only
part of the full shares in an Investment Account may be requested by a
shareholder directly from the Transfer Agent.
 
AUTOMATIC INVESTMENT PLANS
 
  Regular additions of Class A, Class B, Class C and Class D shares may be made
to an investor's Investment Account by prearranged charges of $50 or more to
his regular bank account. Investors who maintain CMA (R) or CBA (R) accounts
may arrange to have periodic investments made in the Fund in their CMA (R) or
CBA (R) accounts or in certain related accounts in amounts of $100 or more
through the CMA (R)/CBA (R) Automated Investment Program.
 
FEE-BASED PROGRAMS
 
  Certain Merrill Lynch fee-based programs, including pricing alternatives for
securities transactions (each referred to in this paragraph as a "Program"),
may permit the purchase of Class A shares at net asset value.
 
                                       50
<PAGE>
 
   
Under specified circumstances, participants in certain Programs may deposit
other classes of shares which will be exchanged for Class A shares. Initial or
deferred sales charges otherwise due in connection with such exchanges may be
waived or modified, as may the Conversion Period applicable to the deposited
shares. Termination of participation in a Program may result in the redemption
of shares held therein or the automatic exchange thereof to another class of
shares at net asset value, which may be shares of a money market fund. In
addition, upon termination of participation in a Program, shares that have been
held for less than specified periods within such Program may be subject to a
fee based upon the current value of such shares. These Programs also generally
prohibit such shares from being transferred to another account at Merrill
Lynch, to another broker-dealer or to the Transfer Agent. Except in limited
circumstances (which may also involve an exchange as described above), such
shares must be redeemed and another class of shares purchased (which may
involve the imposition of initial or deferred sales charges and distribution
and account maintenance fees) in order for the investment not to be subject to
Program fees. Additional information regarding a specific Program (including
charges and limitations on transferability applicable to shares that may be
held in such Program) is available in such Program's client agreement and from
the Transfer Agent at (800) MER-FUND or (800) 637-3863.     
 
AUTOMATIC REINVESTMENT OF DIVIDENDS AND CAPITAL GAINS DISTRIBUTIONS
   
  All dividends and capital gains distributions are reinvested automatically in
full and fractional shares of the Fund, without sales charge, at the net asset
value per share next determined on the ex-dividend date of such dividend or
distribution. A shareholder may at any time, by written notification to Merrill
Lynch, if the shareholder's account is maintained with Merrill Lynch, or by
written notification or by telephone call (1-800-MER-FUND) to the Transfer
Agent if the shareholder's account is maintained with the Transfer Agent, elect
to have subsequent dividends or capital gains distributions paid in cash,
rather than reinvested, in which event payment will be mailed on or about the
payment date. The Fund is not responsible for any failure of delivery to the
shareholder's address of record and no interest will accrue on amounts
represented by uncashed distribution or redemption checks. Cash payments can
also be directly deposited to the shareholder's bank account. No CDSC will be
imposed on redemptions of shares issued as a result of the automatic
reinvestment of dividends or capital gains distributions.     
 
SYSTEMATIC WITHDRAWAL PLANS
   
  A shareholder may elect to receive systematic withdrawal payments from his or
her Investment Account in the form of payments by check or through automatic
payment by direct deposit to his or her bank account on either a monthly or
quarterly basis. A shareholder whose shares are held within a CMA(R), CBA(R) or
Retirement Account may elect to have shares redeemed on a monthly, bimonthly,
quarterly, semiannual or annual basis through the CMA(R) or CBA(R) Systematic
Redemption Program, subject to certain conditions. With respect to redemptions
of Class B and Class C shares pursuant to a systematic withdrawal plan, the
maximum number of Class B or Class C shares that can be redeemed from an
account annually shall not exceed 10% of the value of shares of such class in
that account at the time the election to join the systematic withdrawal plan
was made. Any CDSC that otherwise might be due on such redemption of Class B or
Class C shares will be waived. Shares redeemed pursuant to a systematic
withdrawal plan will be redeemed in the same order as Class B or Class C shares
are otherwise redeemed. See "Purchase of Shares--Deferred Sales Charge
Alternatives--Class B and Class C Shares--Contingent Deferred Sales Charges--
Class B Shares" and "--Contingent Deferred Sales Charges--Class C Shares."
Where the systematic withdrawal plan is     
 
                                       51
<PAGE>
 
   
applied to Class B shares, upon conversion of the last Class B shares in an
account to Class D shares, the systematic withdrawal plan will automatically
be applied thereafter to Class D shares. See "Purchase of Shares--Deferred
Sales Charge Alternatives--Class B and Class C Shares--Conversion of Class B
Shares to Class D Shares."     
 
RETIREMENT PLANS
 
  As described in further detail in the Statement of Additional Information,
eligible shareholders of the Fund may participate in a variety of qualified
employee benefit plans which are available from Merrill Lynch.
 
EXCHANGE PRIVILEGE
 
  U.S. shareholders of each class of shares of a Portfolio have an exchange
privilege with the other Portfolios and certain other MLAM-advised mutual
funds. There is currently no limitation on the number of times a shareholder
may exercise the exchange privilege. The exchange privilege may be modified or
terminated in accordance with the rules of the Securities and Exchange
Commission.
 
  Under the Merrill Lynch Select Pricing SM System, Class A shareholders may
exchange Class A shares of a Portfolio for Class A shares of another Portfolio
or a second MLAM-advised mutual fund if the shareholder holds any Class A
shares of the other Portfolio or second fund in his account in which the
exchange is made at the time of the exchange or is otherwise eligible to
purchase Class A shares of the second fund. If the Class A shareholder wants
to exchange Class A shares for shares of another Portfolio or a second MLAM-
advised mutual fund, and the shareholder does not hold Class A shares of the
other Portfolio or the second fund in his account at the time of the exchange
and is not otherwise eligible to acquire Class A shares of the other Portfolio
or second fund, the shareholder will receive Class D shares of the other
Portfolio or second fund as a result of the exchange. Class D shares also may
be exchanged for Class A shares of another Portfolio or a second MLAM-advised
mutual fund at any time as long as, at the time of the exchange, the
shareholder holds Class A shares of the other Portfolio or second fund in the
account in which the exchange is made or is otherwise eligible to purchase
Class A shares of the other Portfolio or second fund.
 
  Exchanges of Class A and Class D shares are made on the basis of the
relative net asset values per Class A or Class D share, respectively, plus an
amount equal to the difference, if any, between the sales charge previously
paid on the Class A or Class D shares being exchanged and the sales charge
payable at the time of the exchange on the shares being acquired.
 
  Class B, Class C and Class D shares of a Portfolio will be exchangeable with
shares of the same class of another Portfolio or other MLAM-advised mutual
funds. Class C shares of the Intermediate Term Portfolio are available only
through the Exchange Privilege.
 
  Shares of a Portfolio that are subject to a CDSC will be exchangeable on the
basis of relative net asset value per share without the payment of any CDSC
that might otherwise be due upon redemption of the shares of the Portfolio.
For purposes of computing the CDSC that may be payable upon a disposition of
the shares acquired in the exchange, the holding period for the previously
owned shares of a Portfolio is "tacked" to the holding period of the newly
acquired shares of the other fund.
 
                                      52
<PAGE>
 
  Class A, Class B, Class C and Class D shares also will be exchangeable for
shares of certain MLAM-advised money market funds specifically designated as
available for exchange by holders of Class A, Class B, Class C or Class D
shares. The period of time that Class A, Class B, Class C or Class D shares
are held in a money market fund, however, will not count toward satisfaction
of the holding period requirement for reduction of any CDSC imposed on such
shares, if any, and, with respect to Class B shares, toward satisfaction of
the Conversion Period.
 
  Class B shareholders of a Portfolio exercising the exchange privilege will
continue to be subject to the CDSC schedule applicable to that Portfolio if
such schedule is higher than the CDSC schedule relating to the new Class B
shares. In addition, Class B shares of a Portfolio acquired through use of the
exchange privilege will be subject to the Portfolio's CDSC schedule if such
schedule is higher than the CDSC schedule relating to the Class B shares of
the MLAM-advised mutual fund from which the exchange has been made.
 
  Exercise of the exchange privilege is treated as a sale of the exchanged
shares and a purchase of the acquired shares for federal income tax purposes.
For further information, see "Shareholder Services--Exchange Privilege" in the
Statement of Additional Information.
 
MERRILL LYNCH BLUEPRINT SM PROGRAM
 
  Class D shares of any of the three Portfolios are offered to participants in
the Merrill Lynch Blueprint SM Program ("Blueprint"). In addition,
participants in Blueprint who own Class A shares of the Fund may purchase
additional Class A shares of the Fund through Blueprint. Blueprint is directed
to small investors, group or corporate IRAs and participants in certain
affinity groups such as benefit plans, credit unions and trade associations.
Investors placing orders to purchase Class A or Class D shares of the
Portfolios through a Blueprint account will acquire such Class A or Class D
shares at a reduced sales charge calculated in accordance with the standard
Blueprint sales charge schedules. Class B shares of any of the three
Portfolios are offered through Blueprint only to members of certain affinity
groups. The contingent deferred sales load will be waived in connection with
orders to purchase Class B shares of the Portfolios through Blueprint provided
that the shareholder is a participant in a qualified group plan at the time of
purchase. However, services available to Fund shareholders through Blueprint
may differ from those available to other Fund shareholders. Orders for
purchase and redemption of shares of the Fund may be grouped for execution
purposes which, in some circumstances, may involve the execution of such
orders two business days following the day such orders are placed. There will
be no minimum initial or subsequent purchase requirement for participants who
are part of an automatic investment plan. Additional information concerning
placing orders to purchase through Blueprint, including any annual fees and
transaction charges, is available from Merrill Lynch, Pierce, Fenner & Smith
Incorporated, The Blueprint SM Program, P.O. Box 30441, New Brunswick, New
Jersey 08989-0441.
 
                               PERFORMANCE DATA
 
  From time to time the Fund may include the average annual total return and
yield of a Portfolio for various specified time periods in advertisements or
information furnished to present or prospective shareholders. Average annual
total return and yield are computed separately for the Class A, Class B,
Class C and Class D shares of each Portfolio in accordance with formulas
specified by the Securities and Exchange Commission (the "Commission").
 
                                      53
<PAGE>
 
  Average annual total return quotations for the specified periods will be
computed by finding the average annual compounded rates of return (based on net
investment income and any realized and unrealized capital gains or losses on
portfolio investments over such periods) that would equate the initial amount
invested to the redeemable value of such investment at the end of each period.
Average annual total return will be computed assuming all dividends and
distributions are reinvested and taking into account all applicable recurring
and nonrecurring expenses, including any contingent deferred sales charge that
would be applicable to a complete redemption of the investment at the end of
the specified period such as in the case of Class B and Class C shares and the
maximum sales charge in the case of Class A and Class D shares.
 
  Dividends paid by a Portfolio with respect to all shares, to the extent any
dividends are paid, will be calculated in the same manner at the same time on
the same day and will be in the same amount, except that account maintenance
fees and distribution charges and any incremental transfer agency costs
relating to each class of shares will be borne exclusively by that class. Each
Portfolio of the Fund will include performance data for all classes of shares
of that Portfolio in any advertisement or information including performance
data of the Fund.
 
  The Fund also may quote total return and aggregate total return performance
data of a Portfolio for various specified time periods. Such data will be
calculated substantially as described above, except that (1) the rates of
return calculated will not be average annual rates, but rather, actual annual,
annualized or aggregate rates of return and (2) the maximum applicable sales
charge will not be included with respect to annual or annualized rate of return
calculations. Aside from the impact on the performance data calculations of
including or excluding the maximum applicable sales charge, actual annual or
annualized total return data generally will be lower than average annual total
return data since the average annual rates of return reflect compounding;
aggregate total return generally will be higher than average annual total
return data since the aggregate rates of return reflect compounding over a
longer period of time. In advertisements distributed to investors whose
purchases are subject to waiver of the CDSC in the case of Class B and Class C
shares (such as investors in certain retirement plans) or to reduced sales
charges in the case of Class A and Class D shares, performance data may take
into account the reduced, and not the maximum, sales charge or may not take
into account the contingent deferred sales charges and therefore may reflect
greater total return since, due to the reduced sales charges or waiver of the
contingent deferred sales charge, a lower amount of expenses is deducted. See
"Purchase of Shares." A Portfolio's total return may be expressed either as a
percentage or as a dollar amount in order to illustrate such total return on a
hypothetical investment in that Portfolio at the beginning of each specified
period.
   
  Yield quotations will be computed based on a 30-day period by dividing (a)
the net income based on the yield to maturity of each security earned during
the period by (b) the average daily number of shares outstanding during the
period that were entitled to receive dividends multiplied by the maximum
offering price per share on the last day of the period. The yield for the 30-
day period ended September 30, 1997 was:     
 
<TABLE>   
<CAPTION>
                                                                  INTERMEDIATE
                HIGH INCOME PORTFOLIO INVESTMENT GRADE PORTFOLIO TERM PORTFOLIO
                --------------------- -------------------------- --------------
<S>             <C>                   <C>                        <C>
Class A........         8.16%                   6.06%                5.95%
Class B........         7.73%                   5.55%                5.49%
Class C........         7.68%                   5.50%                5.60%
Class D........         7.92%                   5.82%                5.84%
</TABLE>    
 
                                       54
<PAGE>
 
  Total return and yield figures are based on a Portfolio's historical
performance and are not intended to indicate future performance. A Portfolio's
total return and yield will vary depending on market conditions, the securities
held by that Portfolio, that Portfolio's operating expenses and the amount of
realized and unrealized net capital gains or losses during the period. The
value of an investment in a Portfolio will fluctuate and an investor's shares,
when redeemed, may be worth more or less than their original cost.
 
  On occasion, the Fund may compare the performance of a Portfolio to that of
the Standard & Poor's 500 Index, the Value Line Composite Index, the Dow Jones
Industrial Average, or performance data contained in publications such as
Lipper Analytical Services, Inc., Morningstar Publications, Inc., Money
Magazine, U.S. News & World Report, BusinessWeek, CDA Investment Technology,
Inc., Forbes Magazine or Fortune Magazine. In addition, from time to time the
Fund may include the Fund's risk-adjusted performance ratings assigned by
Morningstar Publications, Inc. in advertising or supplemental sales literature.
As with other performance data, performance comparisons should not be
considered indicative of the Fund's relative performance for any future period.
 
                             ADDITIONAL INFORMATION
 
DETERMINATION OF NET ASSET VALUE
   
  The net asset value of the shares of all classes of each Portfolio is
determined once daily by FAM immediately after the declaration of dividends as
of 15 minutes after the close of business on the NYSE (generally 4:00 p.m., New
York City time) on each day during which the NYSE is open for trading and on
any other day on which there is sufficient trading in the Fund's portfolio
securities that net asset value might be materially affected but only if on any
such day the Fund is required to sell or redeem shares. The net asset value per
share of a Portfolio is computed by dividing the sum of the value of the
portfolio securities held by such Portfolio plus any cash or other assets minus
all liabilities by the total number of shares of such Portfolio outstanding at
such time, rounded to the nearest cent. Expenses, including the investment
advisory fee payable to FAM and any account maintenance and/or distribution
fees payable to the Distributor, are accrued daily. The Fund employs Merrill
Lynch Securities Pricing Service ("MLSPS"), an affiliate of the Investment
Adviser, to provide certain securities prices for the Fund. For the fiscal year
ended September 30, 1997, the Fund paid MLSPS $28,304 for securities price
quotations to compute the net asset value of the Portfolios.     
 
  The per share net asset value of Class A shares of a Portfolio generally will
be higher than the per share net asset value of Class B, Class C and Class D
shares of that Portfolio, reflecting the daily expense accruals of the account
maintenance, distribution and higher transfer agency fees applicable with
respect to Class B and Class C shares and the daily expense accruals of the
account maintenance fee applicable with respect to Class D shares. Moreover,
the per share net asset value of Class D shares generally will be higher than
the per share net asset value of the Class B and Class C shares, reflecting the
daily expense accruals of the distribution and higher transfer agency fees
applicable with respect to Class B and Class C shares. It is expected, however,
that the per share net asset value of the four classes of a Portfolio
eventually will tend to converge (although not necessarily meet) immediately
after the payment of dividends, which will differ by approximately the amount
of the expense accrual differentials between the classes.
 
ORGANIZATION OF THE FUND
 
  The Fund, a Maryland corporation, is a diversified, open-end management
company which was organized in August 1978 and which commenced operations on
November 10, 1978 as the Merrill Lynch
 
                                       55
<PAGE>
 
   
High Income Fund, Inc. The Fund was reorganized on September 8, 1980 to add the
High Quality Portfolio and the Intermediate Term Portfolio. Prior to the
reorganization, the Fund consisted solely of the High Income Portfolio. The
Investment Grade Portfolio and the Intermediate Term Portfolio commenced
operations on October 31, 1980. The Fund is authorized to issue three billion
six hundred fifty million (3,650,000,000) shares of $.10 par value. The shares
are divided as follows: High Income Portfolio Series Common Stock which is
divided into four classes designated "Class A Common Stock," "Class B Common
Stock," "Class C Common Stock" and "Class D Common Stock," which consist of
500,000,000 shares, 1,500,000,000 shares, 200,000,000 shares and 500,000,000
shares, respectively, High Quality Portfolio Series Common Stock (which does
business under the name "Investment Grade Portfolio") which is divided into
four classes designated "Class A Common Stock," "Class B Common Stock," "Class
C Common Stock" and "Class D Common Stock," which consist of 250,000,000,
250,000,000, 100,000,000 and 100,000,000 shares, respectively, and the
Intermediate Term Portfolio Series Common Stock, which is divided into four
classes designated "Class A Common Stock," "Class B Common Stock," "Class C
Common Stock" and "Class D Common Stock," which consist of 100,000,000,
50,000,000, 50,000,000 and 50,000,000, respectively. Each Class A, Class B,
Class C and Class D share of Common Stock of each Portfolio represents an
interest in the same assets of such Portfolio and is identical in all respects
to shares of the other classes, except that the Class B, Class C and Class D
shares bear certain expenses related to the account maintenance fees associated
with such shares, and Class B and Class C shares bear certain expenses related
to the distribution of such shares. Each class has exclusive voting rights with
respect to matters relating to such account maintenance and distribution
expenditures, as applicable. See "Purchase of Shares." The Directors of the
Fund may classify and reclassify the shares of the Fund into additional classes
of Common Stock at a future date.     
 
  Shareholders are entitled to one vote for each share held and fractional
votes for fractional shares held and will vote on the election of Directors and
any other matter submitted to a shareholder vote. The Fund does not intend to
hold meetings of shareholders unless under the Investment Company Act of 1940
shareholders are required to act on any of the following matters: (i) election
of Directors; (ii) approval of an investment advisory agreement; (iii) approval
of a distribution agreement; and (iv) ratification of selection of independent
accountants. Voting rights for Directors are not cumulative. Shares issued are
fully paid and nonassessable and have no preemptive rights. Each share is
entitled to participate equally in dividends and distributions declared by the
Fund and in the net assets of the Fund upon liquidation or dissolution after
satisfaction of outstanding liabilities except that, as noted above, Class B,
Class C and Class D shares bear certain additional expenses.
 
SHAREHOLDER INQUIRIES
 
  Shareholder inquiries may be addressed to the Fund at the address or
telephone number set forth on the cover page of this Prospectus.
 
REPORTS TO SHAREHOLDERS
 
  Only one copy of each shareholder report and certain shareholder
communications will be mailed to each identified shareholder regardless of the
number of accounts such shareholder has. If a shareholder wishes to receive
separate copies of each report and communication for each of the shareholder's
related accounts the shareholder should notify in writing:
 
                             MERRILL LYNCH FINANCIAL DATA SERVICES, INC.
                             P.O. BOX 45289
                             JACKSONVILLE, FLORIDA 32232-5289
 
                                       56
<PAGE>
 
  The written notification should include the shareholder's name, address, tax
identification number and Merrill Lynch, Pierce, Fenner & Smith Incorporated
and/or mutual fund account numbers. If you have any questions regarding this
please call your Merrill Lynch Financial Consultant or Merrill Lynch Financial
Data Services, Inc. at 800-637-3863.
 
ADDITIONAL INFORMATION
 
  This Prospectus does not contain all the information included in the
Registration Statement filed with the Securities and Exchange Commission under
the Securities Act of 1933 and the Investment Company Act of 1940, with respect
to the securities offered hereby, certain portions of which have been omitted
pursuant to the rules and regulations of the Securities and Exchange
Commission.
   
  The Statement of Additional Information, dated January 22, 1998, which forms
a part of the Registration Statement, is incorporated by reference into this
Prospectus. The Statement of Additional Information may be obtained without
charge as provided on the cover page of this Prospectus. The Registration
Statement, including the exhibits filed therewith, may be examined at the
office of the Securities and Exchange Commission in Washington, D.C.     
 
                                       57
<PAGE>
 
                                                                        APPENDIX
 
                     DESCRIPTION OF CORPORATE BOND RATINGS
 
RATINGS OF CORPORATE BONDS
DESCRIPTION OF CORPORATE BOND RATINGS OF
MOODY'S INVESTORS SERVICE, INC.:
 
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 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.
 
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 thereby 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 a desirable
    investment. Assurance of interest and principal payments or of
    maintenance of other terms of the contract over any long period of time
    may be small.
 
Caa Bonds which are rated Caa are of poor standing. Such issues may be in
    default or there may be present elements of danger with respect to
    principal or interest.
 
Ca  Bonds which are rated Ca represent obligations which are speculative in
    a high degree. Such issues are often in default or have other marked
    shortcomings.
 
                                       58
<PAGE>
 
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.
 
  The modifier 1 indicates that the bond ranks in the higher end of its generic
rating category; the modifier 2 indicates a mid-range ranking; and the modifier
3 indicates that the issue ranks in the lower end of its rating category.
 
DESCRIPTION OF CORPORATE BOND RATINGS OF
STANDARD & POOR'S RATINGS GROUP:
 
AAA Bonds rated AAA have the highest rating assigned by Standard & Poor's.
    Capacity to pay interest and repay principal is extremely strong.
 
AA  Bonds rated AA have a very strong capacity to pay interest and repay
    principal and differ from the higher rated issues only in small degree.
 
A   Bonds rated A have a strong capacity to pay interest and repay principal
    although they are somewhat more susceptible to the adverse effects of
    changes in circumstances and economic conditions than bonds in higher
    rated categories.
 
BBB Bonds rated BBB are regarded as having an adequate capacity to pay
    interest and repay principal. Whereas they normally exhibit 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 bonds in this category than in higher
    rated categories.
 
BB  Bonds rated BB, B, CCC and CC are regarded, on balance, as predominantly
    speculative with respect to the issuer's capacity to pay interest and
CCC repay principal in accordance with the terms of the obligation. BB
CC  indicates the lowest degree of speculation and CC the highest degree of
    speculation. While such bonds will likely have some quality and
    protective characteristics, these are outweighed by large uncertainties
    or major risk exposures to adverse conditions.
 
C   The C rating is reserved for income bonds on which no interest is being
    paid.
 
D   Bonds rated D are in default, and payment of interest and/or repayment
    of principal is in arrears.
 
NR  Indicates that no rating has been requested, that there is insufficient
    information on which to base a rating, or that S&P does not rate a
    particular type of bond as a matter of policy.
 
  Plus (+) or Minus (-): The ratings from "AA" to "B" may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.
 
                                       59
<PAGE>
 
                      
                   [THIS PAGE INTENTIONALLY LEFT BLANK]     
 
                                       60
<PAGE>
 
    MERRILL LYNCH CORPORATE BOND FUND, INC. -- AUTHORIZATION FORM (PART 1)
- -------------------------------------------------------------------------------
NOTE: THIS FORM MAY NOT BE USED FOR PURCHASES THROUGH THE MERRILL LYNCH
      BLUEPRINT SM PROGRAM. YOU MAY REQUEST A MERRILL LYNCH
      BLUEPRINT SM PROGRAM APPLICATION BY CALLING (800) 637-3766.
- -------------------------------------------------------------------------------
1. SHARE PURCHASE APPLICATION
  I, being of legal age, wish to purchase: (choose one)
[_] High Income Portfolio Class A  Shares
[_] High Income Portfolio Class B  Shares
[_] High Income Portfolio Class C  Shares
[_] High Income Portfolio Class D  Shares 

[_] Investment Grade Portfolio Class A Shares
[_] Investment Grade Portfolio Class B Shares 
[_] Investment Grade Portfolio Class C Shares 
[_] Investment Grade Portfolio Class D Shares 

[_] Intermediate Term Portfolio Class A Shares
[_] Intermediate Term Portfolio Class B Shares
[_] Intermediate Term Portfolio Class D Shares
of Merrill Lynch Corporate Bond Fund, Inc. and establish an Investment Account
as described in the Prospectus. In the event that I am not eligible to purchase
Class A share, I understand that Class D shares will be purchased.
Basis for establishing an Investment Account:
    A. I enclose a check for $............ payable to Merrill Lynch Financial
  Data Services, Inc. as an initial investment (minimum $1,000). I understand
  that this purchase will be executed at the applicable offering price next to
  be determined after this Application is received by you.
    B. I already own shares of the following Merrill Lynch mutual funds that
  would qualify for the Right of Accumulation as outlined in the Statement of
  Additional Information: Please list all funds. (Use a separate sheet of
  paper if necessary.)
1. ..................................    4. ..................................
2. ..................................    5. ..................................
3. ..................................    6. ..................................
Name...........................................................................
  First Name                        Initial                        Last Name
Name of Co-Owner (if any)......................................................
                First Name                 Initial                 Last Name
Address........................................................................
 ................................................. Date........................
                                     (Zip Code)
Occupation...........................    Name and Address of Employer ........
                                         .....................................
                                         .....................................
 .....................................    .....................................
         Signature of Owner                 Signature of Co-Owner (if any)
 
(In the case of co-owners, a joint tenancy with right of survivorship will be
presumed unless otherwise specified.)
- -------------------------------------------------------------------------------
2. DIVIDEND AND CAPITAL GAIN DISTRIBUTION OPTIONS
 
     Ordinary Income Dividends             Long-Term Capital Gains
                                           
     Select   [_] Reinvest                 Select   [_] Reinvest
     One:     [_] Cash                     One:     [_] Cash
 
If no election is made, dividends and capital gains will be automatically
reinvested at net asset value without a sales charge.
IF CASH, SPECIFY HOW YOU WOULD LIKE YOUR DISTRIBUTIONS PAID TO YOU: [_] CHECK
OR  [_] DIRECT DEPOSIT TO BANK ACCOUNT
IF DIRECT DEPOSIT TO BANK ACCOUNT IS SELECTED, PLEASE COMPLETE BELOW:
I hereby authorize payment of dividend and capital gain distributions by
direct deposit to my bank account and, if necessary, debit entries and
adjustments for any credit entries made to my account in accordance with the
terms I have selected on the Merrill Lynch Corporate Bond, Inc. Authorization
Form.
SPECIFY TYPE OF ACCOUNT (CHECK ONE) [_] CHECKING  [_] SAVINGS
 
Name on your account ..........................................................
 
Bank Name .....................................................................
 
Bank Number ...................... Account Number ............................
 
Bank Address ..................................................................
 
I AGREE THAT THIS AUTHORIZATION WILL REMAIN IN EFFECT UNTIL I PROVIDE WRITTEN
NOTIFICATION TO MERRILL LYNCH FINANCIAL DATA SERVICES, INC. AMENDING OR
TERMINATING THIS SERVICE.
 
Signature of Depositor ........................................................
 
Signature of Depositor ............................... Date...................
(if joint account, both must sign)
NOTE: IF DIRECT DEPOSIT TO BANK ACCOUNT IS SELECTED, YOUR BLANK, UNSIGNED
CHECK MARKED "VOID" OR A DEPOSIT SLIP FROM YOUR SAVINGS ACCOUNT SHOULD
ACCOMPANY THIS APPLICATION.
 
                                      61
<PAGE>
 
- -------------------------------------------------------------------------------
   MERRILL LYNCH CORPORATE BOND FUND, INC. -- AUTHORIZATION FORM (PART 1) --
                                  (CONTINUED)
- -------------------------------------------------------------------------------
NOTE: THIS FORM MAY NOT BE USED FOR PURCHASES THROUGH THE MERRILL LYNCH
BLUEPRINT SM PROGRAM. YOU MAY REQUEST A MERRILL LYNCH BLUEPRINT SM PROGRAM
APPLICATION BY CALLING (800) 637-3766.
- -------------------------------------------------------------------------------
 
3. SOCIAL SECURITY NUMBER OR TAXPAYER IDENTIFICATION NUMBER
           [                                                      ]
           Social Security Number or Taxpayer Identification Number
 
  Under penalty of perjury, I certify (1) that the number set forth above is
my correct Social Security Number or Taxpayer Identification Number and (2)
that I am not subject to backup withholding (as discussed under "Dividends,
Distributions and Taxes--Federal Income Taxes") either because I have not been
notified that I am subject thereto as a result of a failure to report all
interest or dividends, or the Internal Revenue Service ("IRS") has notified me
that I am no longer subject thereto.
 
  INSTRUCTION: YOU MUST STRIKE OUT THE LANGUAGE IN (2) ABOVE IF YOU HAVE BEEN
NOTIFIED THAT YOU ARE SUBJECT TO BACKUP WITHHOLDING DUE TO UNDER-REPORTING AND
IF YOU HAVE NOT RECEIVED A NOTICE FROM THE IRS THAT BACKUP WITHHOLDING HAS
BEEN TERMINATED. THE UNDERSIGNED AUTHORIZES THE FURNISHING OF THIS
CERTIFICATION TO OTHER MERRILL LYNCH SPONSORED MUTUAL FUNDS.
 
 .....................................    .....................................
         Signature of Owner                 Signature of Co-Owner (if any)
- -------------------------------------------------------------------------------
4. LETTER OF INTENTION -- CLASS A AND D SHARES ONLY (Available to holders of
Class A or Class D shares of the Intermediate Term Portfolio, the Investment
Grade Portfolio or the High Income Portfolio. See terms and conditions in the
Statement of Additional Information)
 
                                                 ..................., 19......
                                                   Date of Initial Purchase
Dear Sir/Madam:
 
  Although I am not obligated to do so, I intend to purchase [_] Class A
or [_] Class D (choose one) shares of the [_] High Income
Portfolio [_] Investment Grade Portfolio [_] Intermediate Term Portfolio
(choose one) of Merrill Lynch Corporate Bond Fund, Inc. or any other
investment company with an initial sales charge or deferred sales charge for
which Merrill Lynch Funds Distributor, Inc. acts as distributor over the next
13 month period which will equal or exceed:
 
  High Income Portfolio or Investment Grade Portfolio:
   [_] $25,000 [_] $50,000 [_] $100,000 [_] $250,000 [_] $1,000,000
  Intermediate Term Portfolio:
  [_] $100,000 [_] $250,000 [_] $500,000 [_] $1,000,000
 
  Each purchase will be made at the then reduced offering price applicable to
the amount checked above, as described in the Merrill Lynch Corporate Bond
Fund, Inc. Prospectus.
 
  I agree to the terms and conditions of this Letter of Intention. I hereby
irrevocably constitute and appoint Merrill Lynch Funds Distributor, Inc., my
attorney, with full power of substitution, to surrender for redemption any or
all shares of Merrill Lynch Corporate Bond Fund, Inc. held as security.
 
By ..................................    .....................................
        Signature of Owner                       Signature of Co-Owner
                                  (If registered in joint names, both must sign)
  In making purchases under this letter, the following are the related
accounts on which reduced offering prices are to apply:
 
(1) Name..............................    (2) Name..............................
                                          
Account Number........................    Account Number........................
- --------------------------------------------------------------------------------
5. FOR DEALER ONLY
 
    Branch Office, Address, Stamp.        We hereby authorize Merrill Lynch
                                          Funds Distributor, Inc. to act as our
- --                                 --     agent in connection with transactions
                                          under this authorization form and
                                          agree to notify the Distributor of
                                          any purchases or sales made under a
                                          Letter of Intention, Automatic
                                          Investment Plan or Systematic
                                          Withdrawal Plan. We guarantee the
                                          Shareholder's signature.
                                          ......................................
                                                 Dealer Name and Address       
- --                                 --     By ...................................
This form when completed should be            Authorized Signature of Dealer    
mailed to:                                [ ][ ][ ]    [ ][ ][ ][ ]             
  Merrill Lynch Corporate Bond Fund, Inc. Branch-Code  F/C No.  ................
   c/o Merrill Lynch                                             F/C Last Name  
   Financial Data Services, Inc.          [ ][ ][ ]    [ ][ ][ ][ ][ ]          
   P.O. Box 45289                         Dealer's Customer A/C No.             
   Jacksonville, Florida 32232-5289
 
                                       62
<PAGE>
 
     MERRILL LYNCH CORPORATE BOND FUND, INC.--AUTHORIZATION FORM (PART 2)
- -------------------------------------------------------------------------------
 
NOTE: THIS FORM IS REQUIRED TO APPLY FOR THE SYSTEMATIC WITHDRAWAL OR
AUTOMATIC INVESTMENT PLANS ONLY.
- -------------------------------------------------------------------------------
 
1. ACCOUNT REGISTRATION
                                                  [                        ]
(Please Print)                                     Social Security No. or
                                                   Taxpayer Identification
                                                             No.
 
Name ........................................
     First Name         Initial     Last Name
 
Name of Co-Owner (if any)....................

               First Name    Initial   Last Name
 
Address......................................    Account Number ..............
                                                 (if existing account)
 .............................................
                                   (Zip Code)
- -------------------------------------------------------------------------------
   
2. SYSTEMATIC WITHDRAWAL PLAN (SEE TERMS AND CONDITIONS IN THE STATEMENT OF
ADDITIONAL INFORMATION)     
   
  MINIMUM REQUIREMENTS: $10,000 for monthly disbursements, $5,000 for
quarterly, of [_] Class A, [_] Class B*, [_] Class C* or [_] Class D shares of
the [_] High Income Portfolio [_] Investment Grade Portfolio [_] Intermediate
Term Portfolio (choose one) of Merrill Lynch Corporate Bond Fund, Inc. at cost
or current offering price. Withdrawals to be made either (check one)
[_] Monthly on the 24th day of each month, or [_] Quarterly on the 24th day of
March, June, September and December. If the 24th falls on a weekend or
holiday, the next succeeding business day will be utilized. Begin systematic
withdrawal on       or as soon as possible thereafter.     
             (month)        
SPECIFY THE AMOUNT OF THE WITHDRAWAL YOU WOULD LIKE PAID TO YOU (CHECK ONE):
[_] $      of [_] Class A, [_] Class B*, [_] Class C* or [_] Class D shares in
the account.     
 
SPECIFY WITHDRAWAL METHOD: [_] check or [_] direct deposit to bank account
(check one and complete part (a) or (b) below):
 
DRAW CHECKS PAYABLE (CHECK ONE)
 
(a)I hereby authorize payment by check
   [_] as indicated in Item 1.
   [_] to the order of.........................................................
 
Mail to (check one)
   [_] the address indicated in Item 1.
   [_] Name (please print).....................................................
 
Address .......................................................................
 
   ..........................................................................
 
   Signature of Owner................................   Date..................
 
   Signature of Co-Owner (if any)............................................
 
(B) I HEREBY AUTHORIZE PAYMENT BY DIRECT DEPOSIT TO BANK ACCOUNT AND, IF
NECESSARY, DEBIT ENTRIES AND ADJUSTMENTS FOR ANY CREDIT ENTRIES MADE TO MY
ACCOUNT. I AGREE THAT THIS AUTHORIZATION WILL REMAIN IN EFFECT UNTIL I PROVIDE
WRITTEN NOTIFICATION TO MERRILL LYNCH FINANCIAL DATA SERVICES, INC. AMENDING
OR TERMINATING THIS SERVICE.
 
Specify type of account (check one): [_] checking [_] savings
 
Name on your Account...........................................................
 
Bank Name......................................................................
 
Bank Number........................ Account Number............................
 
Bank Address...................................................................
 
 ...............................................................................
 
Signature of Depositor................................. Date..................
 
Signature of Depositor.........................................................
(If joint account, both must sign)
 
NOTE: IF DIRECT DEPOSIT IS ELECTED, YOUR BLANK, UNSIGNED CHECK MARKED "VOID"
OR A DEPOSIT SLIP FROM YOUR SAVINGS ACCOUNT SHALL ACCOMPANY THIS APPLICATION.
- -------
   
* Annual withdrawal cannot exceed 10% of the value of shares of such class
  held in the account at the time the election to join the systematic
  withdrawal plan is made.     
 
                                      63
<PAGE>
 
   MERRILL LYNCH CORPORATE BOND FUND, INC. -- AUTHORIZATION FORM (PART 2) --
                                  (CONTINUED)
- -------------------------------------------------------------------------------
3. APPLICATION FOR AUTOMATIC INVESTMENT PLAN
 
  I hereby request that Merrill Lynch Financial Data Services, Inc. draw an
automated clearing house ("ACH") debit on my checking account as described
below each month to purchase: (choose one)
 
[_] Class A shares  [_] Class B shares  [_] Class C shares  [_] Class D shares
 
of the [_] High Income Portfolio [_] Investment Grade Portfolio [_]
Intermediate Term Portfolio (choose one) of Merrill Lynch Corporate Bond Fund,
Inc. subject to the terms set forth below. In the event that I am not eligible
to purchase Class A shares, I understand that Class D shares will be
purchased.
 
     MERRILL LYNCH FINANCIAL DATA          AUTHORIZATION TO HONOR ACH DEBITS
            SERVICES, INC.                 DRAWN BY MERRILL LYNCH FINANCIAL
                                                  DATA SERVICES, INC.
 
 
You are hereby authorized to draw an     To...............................Bank
ACH debit each month on my bank                    (Investor's Bank)
account for investment in Merrill
Lynch Corporate Bond Fund, Inc., as
indicated below:
                                         Bank Address.........................
  Amount of each ACH debit $.........
                                     
                                         City...... State...... Zip Code......
                                      
  Account No. ....................... 
                                      
Please date and invest ACH debits on     As a convenience to me, I hereby re-
the 20th of each month beginning         quest and authorize you to pay and
                                         charge to my account ACH debits
 ......(month) or as soon thereafter as   drawn on my account by and payable
possible.                                to Merrill Lynch Financial Data
                                         Services, Inc., I agree that your
I agree that you are drawing these       rights in respect of each such debit
ACH debits voluntarily at my request     shall be the same as if it were a
and that you shall not be liable for     check drawn on you and signed per-
any loss arising from any delay in       sonally by me. This authority is to
preparing or failure to prepare any      remain in effect until revoked by me
such debit. If I change banks or de-     in writing. Until you receive such
sire to terminate or suspend this        notice, you shall be fully protected
program, I agree to notify you           in honoring any such debit. I fur-
promptly in writing. I hereby autho-     ther agree that if any such debit be
rize you to take any action to cor-      dishonored, whether with or without
rect erroneous ACH debits of my bank     cause and whether intentionally or
account or purchases of fund shares      inadvertently, you shall be under no
including liquidating shares of the      liability.
Fund and crediting my bank account. I  
further agree that if a debit is not    ............   ......................
honored upon presentation, Merrill          Date            Signature of     
Lynch Financial Data Services, Inc.                          Depositor       
is authorized to discontinue immedi-                                         
ately the Automatic Investment Plan     ............   ......................
and to liquidate sufficient shares          Bank       Signature of Depositor
held in my account to offset the pur-     Account        (If joint account,  
chase made with the dishonored debit.      Number         both must sign)    
                                                                             
 ............    .....................   NOTE: IF AUTOMATIC INVESTMENT PLAN     
    Date            Signature of        IS ELECTED, YOUR BLANK, UNSIGNED       
                      Depositor         CHECK MARKED "VOID" SHOULD ACCOMPANY   
                                        THIS APPLICATION.                      
                .....................                                          
               Signature of Depositor
                 (If joint account,  
                   both must sign)   
                                     
                                     
 
                                      64
<PAGE>
 
                      
                   [THIS PAGE INTENTIONALLY LEFT BLANK]     
<PAGE>
 
                      
                   [THIS PAGE INTENTIONALLY LEFT BLANK]     
<PAGE>
 
                               INVESTMENT ADVISER
 
                          Fund Asset Management, L.P.
                            Administrative Offices:
                             800 Scudders Mill Road
                          Plainsboro, New Jersey 08536
 
                                Mailing Address:
                                 P.O. Box 9011
                        Princeton, New Jersey 08543-9011
 
                                  DISTRIBUTOR
 
                     Merrill Lynch Funds Distributor, Inc.
                            Administrative Offices:
                             800 Scudders Mill Road
                          Plainsboro, New Jersey 08536
 
                                Mailing Address:
                                 P.O. Box 9081
                        Princeton, New Jersey 08543-9081
 
                                 TRANSFER AGENT
 
                  Merrill Lynch Financial Data Services, Inc.
                            Administrative Offices:
                           4800 Deer Lake Drive East
                        Jacksonville, Florida 32246-6484
 
                                Mailing Address:
                                 P.O. Box 45289
                        Jacksonville, Florida 32232-5289
 
                                   CUSTODIAN
 
                      State Street Bank and Trust Company
                                  P.O. Box 351
                          Boston, Massachusetts 02101
 
                              INDEPENDENT AUDITORS
 
                             Deloitte & Touche LLP
                                117 Campus Drive
                          Princeton, New Jersey 08540
 
                                    COUNSEL
 
                                 Rogers & Wells
                                200 Park Avenue
                            New York, New York 10166
<PAGE>
 
 NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY REPRESEN-
TATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS, IN CONNECTION WITH THE
OFFER CONTAINED IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH OTHER INFORMA-
TION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY
THE FUND, THE INVESTMENT ADVISER OR THE DISTRIBUTOR. THIS PROSPECTUS DOES NOT
CONSTITUTE AN OFFERING IN ANY STATE IN WHICH SUCH OFFERING MAY NOT LAWFULLY BE
MADE.
 
                              -------------------
 
                               TABLE OF CONTENTS
 
<TABLE>   
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Fee Table..................................................................   3
Merrill Lynch Select Pricing SM System.....................................   5
Financial Highlights.......................................................  11
The Fund...................................................................  19
Investment Objectives and Policies.........................................  19
Investment Policies of the Portfolios......................................  20
 Risk Factors in Transactions in Junk Bonds................................  22
 Investments in Foreign Securities.........................................  24
 Interest Rate Futures and Options Thereon.................................  24
 Other Portfolio Strategies................................................  26
 Investment Restrictions...................................................  28
Investment Adviser.........................................................  29
 Code of Ethics............................................................  30
 Transfer Agency Services..................................................  30
Directors..................................................................  31
Purchase of Shares.........................................................  31
 Initial Sales Charge Alternatives--
  Class A and Class D Shares...............................................  34
 Deferred Sales Charge Alternatives--
  Class B and Class C Shares...............................................  37
 Distribution Plans........................................................  42
Redemption of Shares.......................................................  44
 Redemption................................................................  45
 Repurchase................................................................  45
 Reinstatement Privilege--
  Class A and Class D Shares...............................................  46
Dividends, Distributions and Taxes.........................................  46
 Dividends and Distributions...............................................  46
 Federal Income Taxes......................................................  47
Portfolio Transactions.....................................................  49
Shareholder Services.......................................................  49
 Investment Account........................................................  50
 Automatic Investment Plans................................................  50
 Fee-Based Programs........................................................  50
 Automatic Reinvestment of Dividends and Capital Gains Distributions.......  51
 Systematic Withdrawal Plans...............................................  51
 Retirement Plans..........................................................  52
 Exchange Privilege........................................................  52
 Merrill Lynch Blueprint SM Program........................................  53
Performance Data...........................................................  53
Additional Information.....................................................  55
 Determination of Net Asset Value..........................................  55
 Organization of the Fund..................................................  55
 Shareholder Inquiries.....................................................  56
 Reports to Shareholders...................................................  56
 Additional Information....................................................  57
Appendix: Description of Corporate Bond Ratings............................  58
Authorization Form.........................................................  61
</TABLE>    
                                                             
                                                          Code # 10046-0198     
 
 
 

[LOGO] MERRILL LYNCH

Merrill Lynch
Corporate Bond Fund, Inc.

[ART]

PROSPECTUS
    
January 22, 1998     

Distributor:
Merrill Lynch
Funds Distributor, Inc.

This prospectus should be retained for future reference. 
 
 
<PAGE>
 
STATEMENT OF ADDITIONAL INFORMATION
   
JANUARY 22, 1998     
 
                    MERRILL LYNCH CORPORATE BOND FUND, INC.
   P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011--PHONE NO. (609) 282-2800
 
  Merrill Lynch Corporate Bond Fund, Inc. (the "Fund") is a professionally
managed, diversified, open-end investment company consisting of three separate
portfolios, the High Income Portfolio, the Investment Grade Portfolio
(formerly the High Quality Portfolio) and the Intermediate Term Portfolio.
Pursuant to the Merrill Lynch Select Pricing SM System, each Portfolio of the
Fund offers four classes of shares of Common Stock, each with a different
combination of sales charges, ongoing fees and other features, except that
Class C shares of the Intermediate Term Portfolio are available only through
the Exchange Privilege. The Merrill Lynch Select Pricing SM System permits an
investor to choose the method of purchasing shares that the investor believes
is most beneficial given the amount of the purchase, the length of time the
investor expects to hold the shares and other relevant circumstances.
 
                               ----------------
   
  This Statement of Additional Information of the Fund is not a prospectus and
should be read in conjunction with the Prospectus of the Fund (the
"Prospectus") dated January 22, 1998, which has been filed with the Securities
and Exchange Commission (the "Commission") and is available upon oral or
written request without charge. Copies of the Prospectus can be obtained by
calling or by writing the Fund at the above telephone number or address. This
Statement of Additional Information has been incorporated by reference into
the Prospectus.     
 
                               ----------------
 
                  FUND ASSET MANAGEMENT -- INVESTMENT ADVISER
 
             MERRILL LYNCH FUNDS DISTRIBUTOR, INC. -- DISTRIBUTOR
<PAGE>
 
                       INVESTMENT OBJECTIVES AND POLICIES
 
  The primary investment objective of each Portfolio of the Fund is to obtain
the highest level of current income as is consistent with the investment
policies of such Portfolio and with prudent investment management. As a
secondary objective, each Portfolio seeks capital appreciation when consistent
with its primary objective. Each Portfolio seeks to achieve its objectives by
investing in a diversified portfolio of fixed-income securities, such as
corporate bonds and notes, convertible securities, preferred stocks and
government obligations.
 
  Reference is made to "Investment Objectives and Policies" on page 19 of the
Prospectus for a discussion of the investment objectives and policies of the
Fund.
 
TRANSACTIONS IN FUTURES AND OPTIONS THEREON
 
  As described in the Prospectus, each Portfolio of the Fund may purchase and
sell interest rate, bond and bond index futures contracts ("futures contracts")
for the purpose of hedging its portfolio of fixed-income securities against the
adverse effects of anticipated movements in interest rates. The Portfolios
currently trade futures contracts on U.S. Treasury bills, notes and bonds and
GNMA mortgage-backed certificates. The Portfolios may also purchase and sell
exchange-traded call and put options on such futures contracts. The Fund is
subject to the tax requirement that less than 30% of its gross income be
derived from the sale or other disposition of stocks, securities and certain
options, futures or forward contracts held for less than three months. This
requirement may limit the Fund's ability to engage in the hedging transactions
and strategies described below. Set forth below is information concerning
options and futures contracts. Reference is made to the Appendix for a more
complete description of options and futures transactions.
 
  Call Options on Futures Contracts. As set forth in the Appendix, a call
option on a futures contract provides the purchaser with the right, but not the
obligation, to enter into a "long" position in the underlying futures contract
at any time up to the expiration of the option. The purchase of an option on a
futures contract presents more limited risk than the trading of the underlying
futures contract, although, depending on the price of the option compared to
either the futures contract upon which it is based, or the underlying debt
securities, exercise of the option may or may not be less risky than ownership
of the futures contract or underlying debt securities. Like the purchase of a
futures contract, a Portfolio will purchase a call option on a futures contract
to hedge against a market advance resulting from declining interest rates when
the Portfolio is not fully invested.
 
  The writing of a call option on a futures contract may constitute a partial
hedge against declining prices of fixed-income securities of the Portfolios, if
the futures price at expiration is below the exercise price of the option. In
such event, the Portfolio will retain the full amount of the option premium,
which provides a partial hedge against any decline that may have occurred in
the Portfolio's fixed-income investments. Conversely, if the futures price is
above the exercise price at any point prior to expiration, the option may be
exercised and the Portfolio would be required to enter into the underlying
futures contract at an unfavorable price.
 
  Put Options on Futures Contracts. As set forth in the Appendix, a put option
on a futures contract provides the purchaser with the right, but not the
obligation, to enter into a "short" position in the futures
 
                                       2
<PAGE>
 
contract at any time up to the expiration of the option. A Portfolio will
purchase a put option on a futures contract to hedge its securities against the
risk of a decline in market value as a result of rising interest rates.
 
  The writing of a put option on a futures contract may constitute a partial
hedge against increasing prices of fixed-income securities which a Portfolio
intends to purchase, if the futures price at expiration is higher than the
exercise price. In such event, the Portfolio will retain the full amount of the
option premium, which provides a partial hedge against any increase in the
price of fixed-income securities which the Portfolio intends to purchase.
Conversely, if the futures price is below the exercise price at any point prior
to expiration, the option may be exercised and the Portfolio would be required
to enter into the underlying futures contract at an unfavorable price.
 
OPTIONS ON DEBT SECURITIES
   
  As described in the Prospectus, a Portfolio may purchase put options on debt
securities held by the Portfolio in connection with its hedging strategies and
may purchase call options on debt securities under the limited circumstances
described below. A Portfolio is authorized to write (i.e., sell) covered call
options and covered put options on debt securities to hedge its portfolio and
increase its return. Such instruments, therefore, unlike futures contracts and
options thereon, will not be traded solely for hedging purposes. Such options
generally have a maximum exercise period of nine months.     
   
  A Portfolio may write call options which give the holder the right to buy the
underlying security covered by the option from the Portfolio at the stated
exercise price. A Portfolio also may write put options that give the holder the
right to sell the underlying security to the Portfolio at the stated exercise
price. A Portfolio will write only covered options, which means that so long as
the Portfolio is obligated as the writer of a call option, it will own the
underlying securities subject to the options and, in the case of put options,
that the Portfolio will, through its Custodian, have deposited and maintained
short-term U.S. Treasury obligations with a securities depository with a value
equal to or greater than the exercise price of the underlying securities. The
writer of a covered call option has no control over when he may be required to
sell his securities since he may be assigned an exercise notice at any time
prior to the termination of his obligation as a writer. If an option expires
unexercised, the writer realizes a gain in the amount of the premium. Such a
gain, of course, may be offset by a decline in the market value of the
underlying security during the option period. If a call option is exercised,
the writer realizes a gain or loss from the sale of the underlying security.
    
  A Portfolio will receive a premium from writing a put or call option, which
increases the Portfolio's return on the underlying security in the event the
option expires unexercised or is closed out at a profit. In the former
instance, the Portfolio increases its return by retaining the premium without
being required to purchase or sell the underlying security. In the latter case,
the Portfolio increases its return by liquidating the option position at a
profit. The amount of the premium will reflect, among other factors, the
current market price of the underlying security, the relationship of the
exercise price to the market price, the time period until the expiration of the
option and interest rates. By writing a call, the Portfolio limits its
opportunity to profit from an increase in the market value of the underlying
security above the exercise price of the option for so long as the Portfolio's
obligation as a writer continues. By writing a put, the Portfolio will be
obligated to purchase the underlying security at a price that may be higher
than the market value of that security at the time of exercise for as long as
the option is outstanding. In addition, in closing out an option position, the
Fund may incur a loss. Thus, in some periods the Portfolio will receive less
total return and in other periods
 
                                       3
<PAGE>
 
greater total return from its option positions than it otherwise would have
received from the underlying securities. To the extent that such transactions
are engaged in for hedging purposes, any gain (or loss) thereon may offset, in
whole or in part, gains (or losses) on securities held in a Portfolio or
increases in the value of securities the Portfolio intends to acquire. The
Portfolio will attempt to achieve, through the receipt of premiums on covered
options, a more consistent average total return than it would otherwise realize
from holding the underlying securities alone. To facilitate closing
transactions, as described below, the Portfolio will ordinarily only write
options for which a liquid secondary market appears to exist. A Portfolio may
engage in closing transactions in order to terminate outstanding options that it
has written. To effect a closing transaction, the Portfolio purchases, prior to
the exercise of an outstanding option that it has written, an option of the same
series as that on which it desires to terminate its obligation. Profit or loss
from a closing purchase transaction will depend on whether the cost of the
transaction is more or less than the premium received on the sale of the option
plus the related transaction costs.
 
  A Portfolio will purchase a call option only where the market price of the
underlying security declines substantially following the writing of a call
option, and the Portfolio either re-hedges the security by writing a second
call option at a lower exercise price or disposes of the security. In such
event, the Portfolio would usually enter into a closing transaction in
connection with the first option it wrote. However, if the first option has
been held less than three months, the Portfolio may desire not to enter into a
closing transaction in order to comply with certain provisions of the Internal
Revenue Code. In such circumstances, the Portfolio may purchase a call option
in an opening transaction with the same exercise price and expiration date as
the option it sold.
   
  Options referred to herein and in the Fund's Prospectus may be options issued
by The Options Clearing Corporation (the "Clearing Corporation") which are
currently traded on the Chicago Board Options Exchange, American Stock
Exchange, Philadelphia Stock Exchange, Pacific Stock Exchange or New York Stock
Exchange. Options referred to herein and in the Fund's Prospectus may also be
options traded on foreign securities exchanges such as the London Stock
Exchange and the Amsterdam Stock Exchange. An option position may be closed out
only on an exchange which provides a secondary market for an option of the same
series. If a secondary market does not exist, it might not be possible to
effect closing transactions in particular options, with the result, in the case
of a covered call option, that the Fund will not be able to sell the underlying
security until the option expires or until it delivers the underlying security
upon exercise. Reasons for the absence of a liquid secondary market on an
exchange include the following: (i) there may be insufficient trading interest
in certain options; (ii) restrictions may be imposed by an exchange on opening
transactions or closing transactions or both; (iii) trading halts, suspensions
or other restrictions may be imposed with respect to particular classes or
series of options or underlying securities; (iv) unusual or unforeseen
circumstances may interrupt normal operations on an exchange; (v) the
facilities of an exchange or the Clearing Corporation may not at all times be
adequate to handle current trading volume; or (vi) one or more exchanges could,
for economic or other reasons, decide or be compelled at some future date to
discontinue the trading of options (or a particular class or series of
options), in which event the secondary market on that exchange (or in that
class or series of options) would cease to exist, although outstanding options
on that exchange that had been issued by the Clearing Corporation as a result
of trades on that exchange would continue to be exercisable in accordance with
their terms.     
       
                                       4
<PAGE>
 
RISK FACTORS IN TRANSACTIONS IN FUTURES AND OPTIONS THEREON
 
  The trading of futures contracts and options thereon involves the risk of
imperfect correlation between movements in the price of the futures contracts
or option and the price of the security being hedged. The hedge will not be
fully effective where there is imperfect correlation between the movements in
the two financial instruments. For example, if the price of the option or
futures contract moves more than the price of the hedged security, the Fund
would experience either a loss or gain on the option or future which is not
completely offset by movements in the price of the hedged securities. To
compensate for imperfect correlations, the Fund may purchase or sell options or
futures contracts in a greater dollar amount than the hedged securities if the
volatility of the hedged securities is historically greater than the volatility
of the futures contracts. Conversely, the Fund may purchase or sell fewer
futures contracts if the volatility of the price of the hedged securities is
historically less than that of the futures contracts, although such
transactions will in any event be entered into solely for hedging purposes.
       
  The Fund may also purchase futures contracts or options thereon to hedge
against a possible increase in the price of securities before the Fund is able
to invest its cash in fixed-income securities. In such instances, it is
possible that the market may instead decline. If the Fund does not then invest
in such securities because of concern as to possible further market decline or
for other reasons, the Fund may realize a loss on the futures or option
contract that is not offset by a reduction in the price of securities
purchased.
 
  Because of low initial margin deposits made upon the opening of a futures
position, futures transactions involve substantial leverage. As a result,
relatively small movements in the price of the futures contract can result in
substantial unrealized gains or losses. Because the Portfolios will engage in
the purchase and sale of financial futures contracts solely for hedging
purposes, however, any losses incurred in connection therewith should, if the
hedging strategy is successful, be offset in whole or in part by increases in
the value of securities held by the Portfolios or decreases in the price of
securities the Portfolios intend to acquire.
 
  The anticipated offsetting movements between the price of the futures or
option contracts and the hedged security may be distorted due to differences in
the nature of the markets, such as differences in initial and variation margin
requirements, the liquidity of such markets and the participation of
speculators in such markets.
 
  The amount of risk the Fund assumes when it purchases an option on a futures
contract is the premium paid for the option plus related transaction costs. In
order to profit from an option purchased, however, it may be necessary to
exercise the option and to liquidate the underlying futures contract, subject
to the risks of the availability of a liquid offset market described herein. In
addition to the correlation risks discussed above, the purchase of an option
also entails the risk that changes in the value of the underlying futures
contract will not be fully reflected in the value of the option purchased. The
writer of an option on a futures contract is subject to the risks of commodity
futures trading, including the requirement of variation margin payments, as
well as the additional risk that movements in the price of the option may not
correlate with movements in the price of the underlying security or futures
contract.
 
  "Trading Limits" may also be imposed on the maximum number of contracts which
any person may trade on a particular trading day. A contract market may order
the liquidation of positions found to be in violation of these limits and it
may impose other sanctions or restrictions. The Investment Adviser does not
 
                                       5
<PAGE>
 
believe that trading limits will have any adverse impact on the portfolio
strategies for hedging a Portfolio's investments.
 
  The trading of futures contracts and options thereon also is subject to
certain market risks, such as trading halts, suspensions, exchange or clearing
house equipment failures, government intervention, insolvency of a brokerage
firm or clearing corporation or other disruptions of normal trading activity,
which could at times make it difficult or impossible to liquidate existing
positions.
 
  The successful use of transactions in futures contracts and options thereon
also depends on the ability of the management of the Fund correctly to forecast
the direction and extent of interest rate movements within a given time frame.
To the extent interest rates remain stable during the period in which a futures
contract or option is held by the Fund or such rates move in a direction
opposite to that anticipated, the Fund may realize a loss on the hedging
transaction which is not fully or partially offset by an increase in the value
of portfolio securities. As a result, the Fund's total return for such period
may be less than if it had not engaged in the hedging transaction.
   
  The Fund has obtained an order from the Commission exempting it from certain
provisions of the Investment Company Act of 1940 (the "Investment Company Act")
in connection with its transactions in interest rate futures contracts and
related options. In applying for this exemptive order, the Fund made a number
of representations to the Commission regarding the manner in which such trading
will be conducted.     
 
                            INVESTMENT RESTRICTIONS
   
  The Fund has adopted the following fundamental and non-fundamental
restrictions and policies relating to the investment of its assets and its
activities. The fundamental policies set forth below may not be changed without
the approval of the holders of a majority of the Fund's outstanding voting
securities, including a majority of the shares of each Portfolio affected
(which for this purpose and under the Investment Company Act means the lesser
of (i) 67% of the shares represented at a meeting at which more than 50% of the
outstanding shares are represented or (ii) more than 50% of the outstanding
shares).     
 
  Under the fundamental investment restrictions, none of the Portfolios of the
Fund may:
 
    1. Make any investment inconsistent with the Fund's classification as a
  diversified company under the Investment Company Act.
 
    2. Invest more than 25% of its assets, taken at market value, in the
  securities of issuers in any particular industry (excluding the U.S.
  Government and its agencies and instrumentalities).
 
    3. Make investments for the purpose of exercising control or management.
 
    4. Purchase or sell real estate, except that, to the extent permitted by
  applicable law, each Portfolio of the Fund may invest in securities
  directly or indirectly secured by real estate or interests therein or
  issued by companies which invest in real estate or interests therein.
 
    5. Make loans to other persons, except that the acquisition of bonds,
  debentures or other corporate debt securities and investment in government
  obligations, commercial paper, pass-through instruments, certificates of
  deposit, bankers' acceptances, repurchase agreements or any similar
  instruments shall not
 
                                       6
<PAGE>
 
  be deemed to be the making of a loan, and except further that each
  Portfolio of the Fund may lend its portfolio securities, provided that the
  lending of portfolio securities may be made only in accordance with
  applicable law and the guidelines set forth in the Fund's Prospectus and
  Statement of Additional Information, as they may be amended from time to
  time.
 
    6. Issue senior securities to the extent such issuance would violate
  applicable law.
     
    7. Borrow money, except that (i) each Portfolio of the Fund may borrow
  from banks (as defined in the Investment Company Act) in amounts up to
  33 1/3% of its total assets (including the amount borrowed), (ii) each
  Portfolio of the Fund may borrow up to an additional 5% of its total assets
  for temporary purposes, (iii) each Portfolio of the Fund may obtain such
  short-term credit as may be necessary for the clearance of purchases and
  sales of portfolio securities, and (iv) each Portfolio of the Fund may
  purchase securities on margin to the extent permitted by applicable law.
  The Fund may not pledge its assets other than to secure such borrowings or,
  to the extent permitted by the Fund's investment policies as set forth in
  its Prospectus and Statement of Additional Information, as they may be
  amended from time to time, in connection with hedging transactions, short
  sales, when-issued and forward commitment transactions and similar
  investment strategies.     
 
    8. Underwrite securities of other issuers except insofar as a Portfolio
  of the Fund technically may be deemed an underwriter under the Securities
  Act of 1933, as amended (the "Securities Act") in selling portfolio
  securities.
 
    9. Purchase or sell commodities or contracts on commodities, except to
  the extent that a Portfolio of the Fund may do so in accordance with
  applicable law and the Fund's Prospectus and Statement of Additional
  Information, as they may be amended from time to time, and without
  registering as a commodity pool operator under the Commodity Exchange Act.
 
  Under the non-fundamental investment restrictions, none of the Portfolios of
the Fund may:
     
    a. Purchase securities of other investment companies, except to the
  extent such purchases are permitted by applicable law. As a matter of
  policy, however, the Fund will not purchase shares of any registered
  open-end investment company or registered unit investment trust, in
  reliance on Section 12(d)(1)(F) or (G) (the "fund of funds" provisions) of
  the Investment Company Act at any time the Fund's shares are owned by
  another investment company that is part of the same group of investment
  companies as the Fund.     
 
    b. Make short sales of securities or maintain a short position, except to
  the extent permitted by applicable law. The Fund currently does not intend
  to engage in short sales, except short sales "against the box."
 
    c. Invest in securities which cannot be readily resold because of legal
  or contractual restrictions or which cannot otherwise be marketed, redeemed
  or put to the issuer or a third party, if at the time of acquisition more
  than 15% of its total assets would be invested in such securities. This
  restriction shall not apply to securities which mature within seven days or
  securities which the Board of Directors of the Fund has otherwise
  determined to be liquid pursuant to applicable law. Securities purchased in
  accordance with Rule 144A under the Securities Act (a "Rule 144A Security")
  and determined to be liquid by the Fund's Board of Directors are not
  subject to the limitations set forth in this investment restriction.
 
                                       7
<PAGE>
 
    d. Notwithstanding fundamental investment restriction (7) above, the Fund
  will not borrow amounts in any Portfolio in excess of 5% of the total
  assets of such Portfolio, taken at market value, and then only from banks
  as a temporary measure for extraordinary or emergency purposes such as the
  redemption of Fund shares. In addition, the Fund will not purchase
  securities while borrowings are outstanding.
   
  Because of the affiliation of Merrill Lynch, Pierce, Fenner & Smith
Incorporated ("Merrill Lynch") with the Fund, the Fund is prohibited from
engaging in certain transactions involving Merrill Lynch except pursuant to an
exemptive order or otherwise in compliance with the provisions of the
Investment Company Act and the rules and regulations thereunder. Included among
such restricted transactions are (i) purchases from or sales to Merrill Lynch
of securities in transactions in which Merrill Lynch acts as principal, and
(ii) purchases of securities from underwriting syndicates of which Merrill
Lynch is a member.     
 
  Lending of Portfolio Securities. Subject to investment restriction (8) above,
a Portfolio of the Fund from time to time may lend securities from its
portfolio to brokers, dealers and financial institutions and receive as
collateral cash or United States Treasury securities which at all times while
the loan is outstanding will be maintained in amounts equal to at least 100% of
the current market value of the loaned securities. Any cash collateral will be
invested in short-term securities, which will increase the current income of
the Portfolio making the loan. Such loans, which will not have terms longer
than 30 days, will be terminable at any time. The Fund will have the right to
regain record ownership of loaned securities to exercise beneficial rights such
as voting rights, subscription rights and rights of dividends, interest or
other distributions. The Fund may pay reasonable fees to persons unaffiliated
with the Fund for services in arranging such loans. In the event of a default
by the borrower, the Fund may suffer time delays and incur costs or possible
losses in connection with the disposition of the collateral.
 
  Forward Commitments. U.S. Government securities and corporate debt
obligations may be purchased on a forward commitment basis at fixed purchase
terms with periods of up to 45 days between the commitment and settlement
dates. The purchase will be recorded on the date the Fund enters into the
commitment and the value of the security will thereafter be reflected in the
calculation of the Fund's net asset value. The value of the security on the
delivery date may be more or less than its purchase price. A separate account
of the Fund will be established with the Custodian consisting of cash or liquid
high grade debt obligations having a market value at all times until the
delivery date at least equal to the amount of the forward commitment. Although
the Fund will generally enter into forward commitments with the intention of
acquiring securities for its portfolio, the Fund may dispose of a commitment
prior to settlement if the Investment Adviser deems it appropriate to do so.
There can, of course, be no assurance that the judgments upon which these
techniques are based will be accurate or that such techniques when applied will
be effective. The Fund will enter into forward commitment arrangements only
with respect to securities in which it may otherwise invest as described under
"Investment Objectives and Policies."
 
  Repurchase Agreements. As described in the Prospectus, the Fund may invest in
securities pursuant to repurchase agreements. Under such agreements, the seller
agrees, upon entering into the contract, to repurchase the security at a
mutually agreed-upon time and price, thereby determining the yield during the
term of the agreement. This results in a fixed rate of return insulated from
market fluctuations during such period. Such agreements usually cover short
periods, such as under one week. Repurchase agreements may be construed to be
collateralized loans by the purchaser to the seller secured by the securities
transferred to
 
                                       8
<PAGE>
 
the purchaser. The Fund will require the seller to provide additional
collateral if the market value of the securities falls below the repurchase
price at any time during the term of the repurchase agreement. In the event of
default by the seller under a repurchase agreement construed to be a
collateralized loan, the underlying securities are not owned by the Fund but
only constitute collateral for the seller's obligation to pay the repurchase
price. Therefore, the Fund may suffer time delays and incur costs or possible
losses in connection with the disposition of the collateral. Instead of the
contractual fixed rate of return, the rate of return to the Fund will be
dependent upon intervening fluctuations of the market value of such security
and the accrued interest on the security. In such event, the Fund would have
rights against the seller for breach of contract with respect to any losses
arising from market fluctuations following the failure of the seller to
perform. From time to time, the Fund also may invest in securities pursuant to
purchase and sale contracts. While the substance of purchase and sale contracts
is similar to repurchase agreements, because of the different treatment with
respect to accrued interest and additional collateral, management believes that
purchase and sale contracts are not repurchase agreements as such term is
understood in the banking and brokerage community. As a matter of operating
policy, the Fund will not enter into repurchase agreements or purchase and sale
contracts with greater than seven days to maturity if, at the time of such
investment, more than 10% of the total assets of a Portfolio would be so
invested.
 
  Foreign Securities. Investments in foreign securities, particularly those of
nongovernmental issuers, involve considerations which are not ordinarily
associated with investing in domestic issuers. These considerations include
changes in currency rates, currency exchange control regulations, the
possibility of expropriation, the unavailability of financial information or
the difficulty of interpreting financial information prepared under foreign
accounting standards, less liquidity and more volatility in foreign securities
markets, the impact of political, social or diplomatic developments, and the
difficulty of assessing economic trends in foreign countries. If it should
become necessary, the Fund could encounter greater difficulties in invoking
legal processes abroad than would be the case in the United States. Transaction
costs in foreign securities may be higher. The Investment Adviser will consider
these and other factors before investing in foreign securities, and will not
make such investments unless, in its opinion, such investments will meet the
Fund's standards and objectives. No Portfolio will concentrate its investments
in any particular foreign country. Each Portfolio may purchase securities
issued in dollar or foreign currency denominations. In the case of any such
investment in a security denominated in a foreign currency, the Portfolio
making the investment would be subject to the risk of changes in currency
exchange rates.
 
                             MANAGEMENT OF THE FUND
 
DIRECTORS AND OFFICERS
 
  The Directors and officers of the Fund, their ages, principal occupations for
at least the last five years and the public companies for which they serve as
directors are set forth below. Unless otherwise stated, the address of each
director and officer is P.O. Box 9011, Princeton, New Jersey 08540-9011.
   
  Arthur Zeikel (65)--President and Director(1)(2)--Chairman of Fund Asset
Management, L.P. ("FAM" or the "Investment Adviser"), (which term herein
includes its corporate predecessors) and Merrill Lynch Asset Management, L.P.
("MLAM") (which term as used herein includes its corporate predecessors) since
1997; President of the Investment Adviser and MLAM from 1977 to 1997; President
and Director of Princeton Services, Inc. ("Princeton Services") from 1993 to
1997; Executive Vice President of Merrill Lynch & Co., Inc. ("ML & Co.") since
1990.     
 
                                       9
<PAGE>
 
   
  Ronald W. Forbes (57)--Director(2)--1400 Washington Avenue, Albany, New York
12222. Associate Professor of Finance, School of Business, State University of
New York at Albany since 1989.     
   
  Cynthia A. Montgomery (45)--Director(2)--Harvard Business School, Soldiers
Field Road, Boston, Massachusetts 02613. Professor, Harvard Business School,
since 1989; Associate Professor, J.L. Kellogg Graduate School of Management,
Northwestern University from 1985 to 1989; Assistant Professor, Graduate School
of Business Administration, The University of Michigan from 1979 to 1985;
Director, of UNUM Corporation since 1990 and Director of Newell Co. since 1995.
       
  Charles C. Reilly (66)--Director(2)--9 Hampton Harbor Road, Hampton Bays, New
York 11946. Self-employed financial consultant since 1990; President and Chief
Investment Officer of Verus Capital, Inc. from 1979 to 1990; Senior Vice
President of Arnhold and S. Bleichroeder, Inc. from 1973 to 1990; Adjunct
Professor, Columbia University Graduate School of Business from 1990 to 1991;
Adjunct Professor, Wharton School, The University of Pennsylvania from 1989 to
1990; Partner, Small Cities Cable Television since 1986.     
   
  Kevin A. Ryan (65)--Director(2)--127 Commonwealth Avenue, Chestnut Hill,
Massachusetts 02167. Founder, and current Director of The Boston University
Center for Advancement of Ethics and Character; Professor of Education at
Boston University since 1982; formerly taught on the faculties of the
University of Chicago, Stanford University and Ohio State University.     
   
  Richard R. West (59)--Director(2)--Box 604, Genoa, Nevada 89411. Professor of
Finance since 1984, and Dean from 1984 to 1993, and currently Dean Emeritus of
New York University, Leonard N. Stern School of Business Administration;
Director of Bowne & Co., Inc. (financial printers), Vornado, Inc. (real estate
holding company), and Alexander's Inc. (real estate company).     
   
  Terry K. Glenn (57)--Executive Vice President (1)(2)--Executive Vice
President of the Investment Adviser and MLAM since 1983; Executive Vice
President and Director of Princeton Services since 1993; President of the
Merrill Lynch Funds Distributor, Inc. (the "Distributor ") since 1986 and
Director thereof since 1991; President of Princeton Administrators, L.P. since
1988.     
   
  Joseph T. Monagle, Jr. (49)--Senior Vice President (1)(2)--Senior Vice
President of the Investment Adviser and MLAM since 1990; Department Head of the
Global Fixed Income Division of the Investment Adviser and MLAM since 1997;
Senior Vice President of Princeton Services since 1993.     
   
  Donald C. Burke (37)--Vice President (1)(2)--First Vice President of MLAM
since 1997; Vice President of MLAM from 1990 to 1997; and Director of Taxation
of MLAM since 1997.     
   
  Vincent T. Lathbury, III (57)--Senior Vice President and Portfolio Manager
(1)(2)--First Vice President of MLAM since 1997; Vice President of MLAM from
1982 to 1997; Portfolio Manager of the Investment Adviser and MLAM since 1982.
       
  Jay C. Harbeck (62)--Senior Vice President and Portfolio Manager (1)(2)--
First Vice President of MLAM since 1997; Vice President of MLAM from 1986 to
1997; Portfolio Manager of the Investment Advisor and MLAM since 1986.     
   
  Gerald M. Richard (48)--Treasurer (1)(2)--Senior Vice President and Treasurer
of the Investment Adviser and MLAM since 1984; Senior Vice President and
Treasurer of Princeton Services since 1993; Vice President of the Distributor
since 1981 and Treasurer since 1984.     
 
                                       10
<PAGE>
 
   
  Philip M. Mandel (50)--Secretary (1)(2)--First Vice President of MLAM since
1997; Assistant General Counsel of Merrill Lynch since 1989.     
- --------
(1) Interested person, as defined in the Investment Company Act of 1940, of
    the Fund.
(2) The officers of the Fund are officers of certain other investment
    companies for which the Investment Adviser or MLAM acts as investment
    adviser (see "Investment Advisory Arrangements").
   
  As of December 31, 1997, the Directors and officers of the Fund as a group
(13 persons) owned an aggregate of less than 1% of the outstanding shares of
Common Stock of ML & Co., and owned an aggregate of less than 1% of the
outstanding shares of the Fund.     
   
  Pursuant to the terms of the Investment Advisory Agreement, the Investment
Adviser pays all compensation of officers and employees of the Fund as well as
the fees of all Directors of the Fund who are affiliated persons of the
Investment Adviser. The Fund pays each Director not affiliated with the
Investment Adviser (each a "non-affiliated Director") an annual fee of $4,500
plus a fee of $400 per meeting attended, together with such Director's actual
out-of-pocket expenses relating to attendance at meetings. The Fund also
compensates members of its Audit and Nominating Committee (the "Committee"),
which consists of all of the non-affiliated Directors, with a fee of $1,400
per year. The Chairman of the Audit Committee is paid an additional annual fee
of $1,000. For the fiscal year ended September 30, 1997, fees and expenses
paid to the non-affiliated Directors which were allocated to the Fund
aggregated $46,023.     
   
  The following table sets forth for the fiscal year ended September 30, 1997,
compensation paid by the Fund to the non-interested Directors and for the
calendar year ended December 31, 1996, the aggregate compensation paid by all
investment companies (including the Fund) advised by MLAM and its affiliate,
FAM ("MLAM/FAM Advised Funds") to the non-affiliated Directors:     
 
<TABLE>   
<CAPTION>
                                                                  AGGREGATE
                                                              COMPENSATION FROM
                                              PENSION OR          FUND AND
                                          RETIREMENT BENEFIT  MLAM/FAM ADVISED
                            COMPENSATION   ACCRUED AS PART      FUNDS PAID TO
DIRECTOR/TRUSTEE            FROM THE FUND  OF FUND EXPENSE   TRUSTEE/DIRECTOR(1)
- ----------------            ------------- ------------------ -------------------
<S>                         <C>           <C>                <C>
Ronald W. Forbes...........    $8,800            None             $142,500
Cynthia A. Montgomery......    $8,800            None             $142,500
Charles C. Reilly..........    $9,800            None             $293,833
Kevin A. Ryan..............    $8,800            None             $142,500
Richard R. West............    $8,800            None             $272,833
</TABLE>    
- --------
   
(1) The Directors serve on the boards of MLAM/FAM Advised Funds as follows:
    Mr. Forbes (29 registered investment companies consisting of 42
    portfolios); Ms. Montgomery (29 registered investment companies consisting
    of 42 portfolios); Mr. Reilly (47 registered investment companies
    consisting of 60 portfolios); Mr. Ryan (29 registered investment companies
    consisting of 42 portfolios); and Mr. West (48 registered investment
    companies consisting of 70 portfolios).     
 
INVESTMENT ADVISORY ARRANGEMENTS
   
  The Investment Adviser, acts as the investment adviser for the Fund and
provides the Fund with management services. The Investment Adviser (the
general partner of which is Princeton Services Inc., a wholly owned subsidiary
of ML & Co.) is itself a wholly owned affiliate of ML & Co. and has its
principal place of business at 800 Scudders Mill Road, Plainsboro, New Jersey
08536. ML & Co., Inc. has its principal place of business at 250 Vesey Street,
New York, New York 10281.     
 
                                      11
<PAGE>
 
   
  The Investment Adviser is a limited partnership, the partners of which are
ML & Co. and Princeton Services. ML & Co. and Princeton Services are
"controlling persons" of the Investment Adviser as defined under the Investment
Company Act because of their ownership of its voting securities or their power
to exercise a controlling influence over its management or policies. Similarly,
the following entities may be considered "controlling persons" of MLAM U.K.:
Merrill Lynch Europe Limited (MLAM U.K.'s parent), a subsidiary of ML
International Holdings, a subsidiary of Merrill Lynch International, Inc., a
subsidiary of ML & Co.     
   
  The Investment Adviser has entered into a sub-advisory agreement (the "Sub-
Advisory Agreement") with MLAM, U.K., an indirect, wholly owned subsidiary of
ML & Co. and an affiliate of the Investment Adviser, pursuant to which the
Investment Adviser pays MLAM U.K. a fee for providing investment advisory
services to the Investment Adviser with respect to the Fund in an amount to be
determined from time to time by the Investment Adviser and MLAM U.K. but in no
event in excess of the amount that the Investment Adviser actually receives for
providing services to the Fund pursuant to the Investment Advisory Agreement.
    
  While the Investment Adviser is at all times subject to the direction of the
Board of Directors of the Fund, the Investment Advisory Agreement provides that
the Investment Adviser, subject to review by the Board of Directors, is
responsible for the actual management of each Portfolio and has responsibility
for making decisions to buy, sell or hold any particular security. The
Investment Adviser provides the portfolio managers for the Portfolios, who
consider information from various sources, make the necessary investment
decisions and effect transactions accordingly. The Investment Adviser is also
obligated to perform certain administrative and management services for the
Fund and is obligated to provide all the office space, facilities, equipment
and personnel necessary to perform its duties under the Agreement.
       
       
  Securities held by any Portfolio may also be held by other funds for which
the Investment Adviser or MLAM acts as an adviser or by investment advisory
clients of MLAM. Because of different investment objectives or other factors, a
particular security may be bought for one or more clients when one or more
clients are selling the same security. If purchases or sales of securities for
any Portfolio or for other funds for which the Investment Adviser or MLAM acts
as investment adviser or for their advisory clients arise for consideration at
or about the same time, transactions in such securities will be made, insofar
as feasible, for the respective funds and clients in a manner deemed equitable
to all. To the extent that transactions on behalf of more than one client of
the Investment Adviser or MLAM during the same period may increase the demand
for securities being purchased or the supply of securities being sold, there
may be an adverse effect on price.
 
  Advisory Fee. As compensation for its services to the Portfolios, the
Investment Adviser receives at the end of each month a fee with respect to each
Portfolio. The fee for each Portfolio is determined based on the annual
advisory fee rates for that Portfolio set forth in the table below. These fee
rates are applied to the average daily net assets of each Portfolio, with the
reduced rates shown below applicable to portions of the assets of each
Portfolio to the extent that the aggregate of the average daily net assets of
the three combined Portfolios exceeds $250 million, $500 million and $750
million (each such amount being a "breakpoint level"). The portion of the
assets of a Portfolio to which the rate at each breakpoint level applies will
be determined on a "uniform percentage" basis. The uniform percentage
applicable to a breakpoint level is determined by dividing the amount of the
aggregate of the average daily net assets of the three combined Portfolios that
 
                                       12
<PAGE>
 
falls within that breakpoint level by the aggregate of the average daily net
assets of the three combined Portfolios. The amount of the fee for a Portfolio
at each breakpoint level is determined by multiplying the average daily net
assets of that Portfolio by the uniform percentage applicable to that
breakpoint level and multiplying the product by the advisory fee rate.
 
<TABLE>
<CAPTION>
                                                     RATES OF ADVISORY FEE
                                               ---------------------------------
                                                 HIGH    INVESTMENT INTERMEDIATE
AGGREGATE OF AVERAGE DAILY NET ASSETS           INCOME     GRADE        TERM
OF THE THREE COMBINED PORTFOLIOS               PORTFOLIO PORTFOLIO   PORTFOLIO
- -------------------------------------          --------- ---------- ------------
<S>                                            <C>       <C>        <C>
Up to $250 million............................   0.55%      0.50%       0.50%
Over $250 million up to $500 million..........   0.50       0.45        0.45
Over $500 million up to $750 million..........   0.45       0.40        0.40
Over $750 million.............................   0.40       0.35        0.35
</TABLE>
   
  For the fiscal years ended September 30, 1995, 1996 and 1997 the advisory
fees paid by the Fund to the Investment Adviser totaled $19,482,874,
$27,255,524 and $33,985,376, respectively. The Investment Adviser did not
reimburse any portion of its advisory fee for the fiscal years ended September
30, 1995, 1996 and 1997.     
    
  Payment of Expenses. The Investment Advisory Agreement obligates the
Investment Adviser to provide investment advisory services and to pay all
compensation of and furnish office space for officers and employees of the Fund
connected with economic research, investment research, trading and investment
management of the Portfolios, as well as the fees of all directors of the Fund
who are affiliated persons of ML & Co. or any of its subsidiaries. Each
Portfolio pays all other expenses incurred in its operation and a portion of the
Fund's general administrative expenses allocated on the basis of the asset size
of the respective Portfolios. Expenses that will be borne directly by the
Portfolios include redemption expenses, expenses of portfolio transactions,
shareholder servicing costs, expenses of registering the shares under federal
and state securities laws, pricing costs (including the daily calculation of net
asset value), interest, certain taxes, charges of the Custodian and Transfer
Agent and other expenses attributable to a particular Portfolio. Expenses which
will be allocated on the basis of size of the respective Portfolios include
directors' fees, legal expenses, state franchise taxes, auditing services, costs
of printing proxies, stock certificates, shareholder reports and prospectuses
and statements of additional information (except to the extent paid by the
Distributor), Commission fees, accounting costs and other expenses properly
payable by the Fund and allocable on the basis of size of the respective
Portfolios. Accounting services are provided for the Fund by the Investment
Adviser and the Fund reimburses the Investment Adviser for its costs in
connection with such services. For the fiscal year ended September 30, 1997, the
amount of such reimbursement for accounting services was $735,200, of which
$505,855 was received with respect to the High Income Portfolio, $153,971 was
received with respect to the Investment Grade Portfolio and $75,374 was received
with respect to the Intermediate Term Portfolio. For the fiscal year ended
September 30, 1996, the amount of such reimbursement for accounting services was
$606,335, of which $443,142 was received with respect to the High Income
Portfolio, $115,335 was received with respect to the Investment Grade Portfolio
and $47,858 was received with respect to the Intermediate Term Portfolio. For
the fiscal year ended September 30, 1995 the amount of such reimbursement for
accounting services was $383,639, of which $215,484, was received with respect
to the High Income Portfolio, $118,390 was received with respect to the
Investment Grade Portfolio and $49,765 was received with respect to the
Intermediate Term Portfolio. Depending upon the nature of the lawsuit,
litigation costs may be directly applicable to a Portfolio or allocated on the
basis of the size of the respective     
 
                                      13
<PAGE>
 
Portfolios. The Board of Directors of the Fund has determined that this is an
appropriate method of allocation of expenses. As required by the Distribution
Agreement, the Distributor will pay certain of the expenses of each Portfolio
incurred in connection with the offering of shares of each Portfolio, including
the expenses of printing the prospectuses and statements of additional
information used in connection with the continuous offering of shares by each
Portfolio. See "Distributor."
 
DURATION AND TERMINATION
   
  Continuation of the Investment Advisory Agreement for the period March 1,
1998 to March 1, 1999 was approved by the Board of Directors, including a
majority of the disinterested directors, on December 10, 1997. Unless earlier
terminated as described below, the agreement will remain in effect until March
1, 199 and thereafter will continue in effect from year to year if approved
annually (a) by the Board of Directors of the Fund or by a majority of the
outstanding shares of the Fund and (b) by a majority of the directors who are
not parties to such contract or interested persons (as defined in the
Investment Company Act of 1940) of any such party. The agreement is not
assignable and may be terminated without penalty on 60 days' written notice at
the option of either party or by the vote of the shareholders of the Fund.     
 
TRANSFER AGENCY SERVICES ARRANGEMENTS
          
The Transfer Agent, which is a subsidiary of ML & Co., acts as the Trust's
transfer agent pursuant to a Transfer Agency, DIvidend Disbursing Agency and
Shareholder Servicing Agency Agreement (the "Transfer Agency Agreement").
Pursuant to the Transfer Agency Agreement, the Transfer Agent is responsible
for the issuance, transfer and redemption of shares and the opening and
maintenance of shareholder accounts. Pursuant to the Transfer Agency Agreement,
the Transfer Agent receives an annual fee of up to $11.00 per Class A or Class
D account and up to $14.00 per Class B or Class C account and is entitled to
reimbursement for certain transaction charges and out-of-pocket expenses
incurred by the Transfer Agent under the Transfer Agency Agreement.
Additionally, a $.20 monthly closed account charge will be assessed on all
accounts which close during the calendar year. Application of this fee will
commence the month following the month the account is closed. At the end of the
calendar year, no further fees will be due. For purposes of the Transfer Agency
Agreement, the term "account" includes a shareholder account maintained
directly by the Transfer Agent and any other account representing the
beneficial interest of a person in the relevant share class on a recordkeeping
system, provided the recordkeeping system is maintained by a subsidiary of ML &
Co. For the fiscal year ended September 30, 1997, the total fee paid by the
Fund to the Transfer Agent was 8,456,820 pursuant to the Transfer Agency
Agreement.     
 
                                       14
<PAGE>
 
                        DETERMINATION OF NET ASSET VALUE
   
  Reference is made to "Additional Information--Determination of Net Asset
Value" on page 54 of the Prospectus. The net asset value of the shares of each
Portfolio is determined once daily by the Investment Adviser immediately after
the declaration of dividends as of 15 minutes after the close of business on
the New York Stock Exchange ("NYSE") (generally 4:00 p.m., New York City time)
on days that the NYSE is open for business and on any other day on which there
is sufficient trading in the Fund's portfolio securities that net asset value
might be materially affected but only if on any such day the Fund is required
to sell or redeem shares. The NYSE is not open for business on the following
holidays: New Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good
Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and
Christmas Day. The net asset value per share of a Portfolio is computed by
dividing the sum of the value of the securities held by such Portfolio plus any
cash or other assets minus all liabilities by the total number of shares of
such Portfolio outstanding at such time, rounded to the nearest cent. Expenses,
including the investment advisory fee payable to the Investment Adviser and any
account maintenance and/or distribution fees payable to the Distributor, are
accrued daily.     
 
  The per share net asset value of Class A shares generally will be higher than
the per share net asset value of shares of the other classes, reflecting the
daily expense accruals of the account maintenance, distribution and higher
transfer agency fees applicable with respect to Class B and Class C shares and
the daily expense accruals of the account maintenance fees applicable with
respect to Class D shares; moreover, the per share net asset value of Class D
shares generally will be higher than the per share net asset value of Class B
and Class C shares, reflecting the daily expense accruals of the distribution
and higher transfer agency fees applicable with respect to Class B and Class C
shares. It is expected, however, that the per share net asset value of the
classes will tend to converge (although not necessarily meet) immediately after
the payment of dividends or distribution which will differ by approximately the
amount of the expense accrual differentials between the classes.
   
  Portfolio securities that are traded on stock exchanges are valued at the
last sale price as of the close of business on the day the securities are being
valued, or, lacking any sales, at the mean between closing bid and asked
prices. Securities traded in the over-the-counter ("OTC") market are valued at
the most recent bid prices (in the case of the Investment Grade and
Intermediate Term Portfolios) or at the mean of the most recent bid and ask
prices (in the case of the High Income Portfolio) as obtained from one or more
dealers that make markets in the securities. Portfolio securities that are
traded both in the OTC market and on a stock exchange are valued according to
the broadest and most representative market, and it is expected that for debt
securities this ordinarily will be the OTC market. Options on debt securities,
which are traded on exchanges, are valued at the last asked price for options
written and the last bid price for options purchased. Interest rate futures
contracts and options thereon, which are traded on exchanges, are valued at
their closing price at the close of such exchanges. The Fund employs Merrill
Lynch Securities Pricing Service ("MLSPS"), an affiliate of Merrill Lynch to
provide securities prices for the Fund. For the fiscal year ended September 30,
1997, the Portfolios paid MLSPS $28,304 for security price quotations.
Securities and assets for which market quotations are not readily available are
valued at fair value as determined in good faith by or under the direction of
the Board of Directors of the Fund, including valuations furnished by a pricing
service retained by the Fund which may use a matrix system for valuations.
These procedures of the pricing service and its valuations are reviewed by the
officers of the Fund under the general supervision of the Directors.     
 
                                       15
<PAGE>
 
                             PORTFOLIO TRANSACTIONS
   
  Reference is made to "Investment Objectives and Policies" and "Portfolio
Transactions" in the Prospectus.     
   
  Under the 1940 Act, persons affiliated with the Fund are prohibited from
dealing with the Fund as a principal in the purchase and sale of securities
unless such trading is permitted by an exemptive order issued by the
Commission. Since over-the-counter ("OTC") transactions are usually principal
transactions, affiliated persons of the Fund including Merrill Lynch, may not
serve as dealer in connection with transactions with the Fund. Affiliated
persons of the Fund may serve as broker for the Fund in over-the-counter
transactions conducted on an agency basis. Certain court decisions have raised
questions as to the extent to which investment companies should seek exemptions
under the 1940 Act in order to seek to recapture underwriting and dealer
spreads form affiliated entities. The Directors have considered all factors
deemed relevant, and have made a determination not to seek such recapture at
this time. The Board will reconsider this matter from time to time.     
   
  The Fund may not purchase securities, during the existence of any
underwriting syndicate of which Merrill Lynch is a member or in a private
placement in which Merrill Lynch serves as placement agent except pursuant to
procedures approved by the Directors of the Fund which either comply with rules
adopted by the Commission or with interpretations of the Commission Staff. Rule
10f-3 under the Investment Company Act sets forth conditions under which the
Fund may purchase corporate bonds from an underwriting syndicate of which
Merrill Lynch is a member. The rule sets forth requirements relating to, among
other things, the terms of an issue of corporate bonds purchased by the Fund,
the amount of corporate bonds which may be purchased in any one issue and the
assets of the Fund which may be invested in a particular issue.     
       
  The securities in which each Portfolio invests are traded primarily in the
over-the-counter market. Where possible, each Portfolio will deal directly with
the dealers who make a market in the securities involved unless better prices
and execution are available elsewhere. Such dealers usually act as principals
for their own account. On occasion, securities may be purchased directly from
the issuer. Bonds and money market securities are generally traded on a net
basis and do not normally involve either brokerage commissions or transfer
taxes. The cost of portfolio securities transactions of each Portfolio will
consist primarily of dealer or underwriter spreads.
 
  While the Investment Adviser seeks to obtain the best price and execution in
effecting transactions in the portfolio securities of each Portfolio, brokers
who provide supplemental investment research to the Investment Adviser may
receive orders for transactions by a Portfolio. Such supplemental research
services ordinarily consist of assessments and analyses of the business or
prospects of a company, industry, or economic sector. If, in the judgment of
the Investment Adviser, a Portfolio will be benefited by such supplemental
research services, the Investment Adviser is authorized to pay commissions to
brokers furnishing such services which are in excess of commissions which
another broker may charge for the same transaction. Information so received
will be in addition to and not in lieu of the services required to be performed
by the Investment Adviser under its Investment Advisory Agreement. The expenses
of the Investment Adviser will not necessarily be reduced as a result of the
receipt of such supplemental information. In some cases, the Investment Adviser
may use such supplemental research in providing investment advice to its other
investment advisory accounts.
 
                                       16
<PAGE>
 
   
  For the fiscal year ended September 30, 1995, the Fund paid total brokerage
commissions of $33,471, $27,528 of which was paid to Merrill Lynch. For the
fiscal year ended September 30, 1996, the Fund paid total brokerage
commissions of $63,684, of which $60,484 was paid to Merrill Lynch. For the
fiscal year ended September 30, 1997, the Fund paid total brokerage
commissions of $9,748, $2,998 of which was paid to Merrill Lynch.     
 
PORTFOLIO TURNOVER
   
  The rate of portfolio turnover is not a limiting factor when management
deems it appropriate to purchase or sell securities. The Fund expects that the
annual turnover rate for each of the portfolios should not generally exceed
100%; however, during periods when interest rates fluctuate significantly, as
they have during the past few years, the portfolio turnover rates for each of
the portfolios may be substantially higher. In any particular year, however,
market conditions could result in portfolio activity of a Portfolio at a
greater or lesser rate than anticipated. The portfolio turnover rates for the
fiscal years ended September 30, 1997 and September 30, 1996 were: 38.58% and
32.44% for the High Income Portfolio; 113.46% and 88.53% for the Investment
Grade Portfolio; and 76.99% and 96.40% for the Intermediate Term Portfolio.
High portfolio turnover involves correspondingly greater transaction costs in
the form of commissions and dealer spreads, which are borne directly by the
Fund. The calculation of the rate of portfolio turnover does not include the
purchase or sale of money market securities. High portfolio turnover can be
expected to result in the recognition of capital gains and losses. To the
extent the Fund distributes short-term capital gains, such distributions will
be taxable as dividends. The Fund's ability to enter into certain short-term
transactions will be limited by the requirement that gains on certain
securities held by the Fund for less than three months may not exceed 30% of
its annual gross income for federal income tax purposes.     
 
  The Fund intends to continue to comply with the various requirements of the
Internal Revenue Code so as to qualify as a "regulated investment company"
thereunder. See "Dividends, Distributions and Taxes." Among such requirements
is a limitation to less than 30% on the amount of its gross income which the
Fund may derive from gain on the sale or other disposition of securities held
for less than three months. Accordingly, the Fund's ability to effect certain
portfolio transactions may be limited.
 
                              PURCHASE OF SHARES
   
  Each Portfolio issues four classes of shares under the Merrill Lynch Select
Pricing SM System: Class A and Class D shares are sold to investors choosing
the initial sales charge alternatives and Class B and Class C shares are sold
to investors choosing the deferred sales charge alternative. Each Class A,
Class B, Class C and Class D share of each Portfolio represents an identical
interest in the same portfolio of investments of such Portfolio and has the
same rights except that Class B, Class C and Class D shares bear the expenses
of the Class B, Class C and Class D exclusive voting rights with respect to
the Rule 12b-1 distribution plan adopted with respect to such class pursuant
to which the account maintenance and/or distribution fees are paid (except
that Class B shareholders may vote upon any material changes to expenses
charged under the Class D Distribution Plan). Each class has different
exchange privileges. See "Shareholder Services--Exchange Privilege." Class C
shares of the Intermediate Term Portfolio are available only through the
Exchange Privilege.     
 
ALTERNATIVE SALES ARRANGEMENTS
 
  The alternative sales arrangements of the three Portfolios permit investors
to choose the method of purchasing shares that the investor believes is most
beneficial given the amount of their purchase, the length
 
                                      17
<PAGE>
 
of time the investor expects to hold his shares and other relevant
circumstances. Investors should determine whether under their particular
circumstances it is more advantageous to incur an initial sales charge and not
be subject to ongoing charges, as discussed below, or to have the entire
initial purchase price invested in one of the Portfolios with the investment
thereafter being subject to ongoing charges.
   
  The Merrill Lynch Select Pricing SM System is used by more than 50
registered investment companies advised by MLAM or its affiliate, the
Investment Adviser. Funds advised by MLAM or the Investment Adviser, that use
the Merrill Lynch Select Pricing SM System, are referred to herein as "MLAM-
advised mutual funds."     
 
  The Fund has entered into separate distribution agreements (the
"Distribution Agreements") with the Distributor in connection with the
continuous offering of each class of shares of the three Portfolios. The
Distribution Agreements obligate the Distributor to pay certain expenses in
connection with the offering of each class of shares of the Fund. After the
prospectuses, statements of additional information and periodic reports have
been prepared, set in type and mailed to shareholders, the Distributor pays
for the printing and distribution of copies thereof used in connection with
the offering to dealers and investors. The Distributor also pays for other
supplementary sales literature and advertising costs. The Distribution
Agreements are subject to the same renewal requirements and termination
provisions as the Investment Advisory Agreement described above.
 
INITIAL SALES CHARGE ALTERNATIVE--CLASS A AND CLASS D SHARES
          
  For the fiscal year ended September 30, 1997, Class A gross sales charges
aggregated $406,233 of which the Distributor received $38,641 and Merrill
Lynch received $367,592. During the fiscal year ended September 30, 1997, the
Distributor received $1,006 with respect to redemptions within one year after
purchase of Class A shares purchased subject to a front end sales charge
waiver. For the fiscal year ended September 30, 1996, Class A gross sales
charges aggregated $582,180 of which the Distributor received $55,887 and
Merrill Lynch received $526,293. During the fiscal year ended September 30,
1996, the Distributor received no CDSCs with respect to redemptions within one
year after purchase of Class A shares purchased subject to a front end sales
charge waiver. For the fiscal year ended September 30, 1995, Class A gross
sales charges aggregated $695,988 of which the Distributor received $60,832
and Merrill Lynch received $635,156. During the fiscal year ended September
30, 1995, the Distributor received $16,548 with respect to redemptions within
one year after purchase of Class A shares purchased subject to a front end
sales charge waiver. All of such sales charges were attributable to payments
of initial sales charges in connection with purchases of Class A shares of the
Portfolios.     
   
  For the fiscal year ended September 30, 1997, Class D gross sales charges
aggregated $1,947,053 of which the Distributor received $183,587 and Merrill
Lynch received $1,763,466. During the fiscal year ended September 30, 1997,
the Distributor received $135,329 with respect to redemptions within one year
after purchase of Class D shares purchased subject to a front end sales charge
waiver. For the fiscal year ended September 30, 1996, Class D gross sales
charges aggregated $1,935,641 of which the Distributor received $183,507 and
Merrill Lynch received $1,752,134. During the fiscal year ended September 30,
1996, the Distributor received $51,319 with respect to redemptions within one
year after purchase of Class D shares purchased subject to a front end sales
charge waiver. For the period October 21, 1994 (commencement of operations) to
September 30, 1995, Class D gross sales charges aggregated $1,433,700 of which
the Distributor received $125,766 and Merrill Lynch received $1,307,934.
During the period October 21, 1994 (commencement of operations) to September
30, 1995, the Distributor received no CDSCs with respect to     
 
                                      18
<PAGE>
 
   
redemptions within one year after purchase of Class D shares purchased subject
to a front end sales charge waiver. All of such sales charges were attributable
to payments of initial sales charges in connection with purchases of Class D
shares of the Portfolios.     
 
  For information as to brokerage commissions received by Merrill Lynch, see
"Portfolio Transactions."
 
REDUCED INITIAL SALES CHARGES--CLASS A AND CLASS D SHARES
 
  Reduced Sales Charges. As described generally in the Prospectus, a reduced
sales charge is available for any purchase of Class A or Class D shares of the
High Income Portfolio or Investment Grade Portfolio in excess of $25,000 and
Class A or Class D shares of the Intermediate Term Portfolio in excess of
$100,000. The term "purchase," as used in the Prospectus and this Statement of
Additional Information in connection with an investment in Class A and Class D
shares of the Fund, refers to a single purchase by an individual, or to
concurrent purchases, which in the aggregate are at least equal to the
prescribed amounts, by an individual, his spouse and their children under the
age of 21 years purchasing shares for his or their own account and to single
purchases by a trustee or other fiduciary purchasing shares for a single trust
estate or single fiduciary account (including a pension, profit-sharing or
other employee benefit trust created pursuant to a plan qualified under Section
401 of the Code) although more than one beneficiary is involved. The term
"purchase" also includes purchases by any "company," as that term is defined in
the Investment Company Act, but does not include purchases by any such company
that has not been in existence for at least six months or that has no purpose
other than the purchase of shares of the Fund or shares of other registered
investment companies at a discount; provided, however that it shall not include
purchases by any group of individuals whose sole organizational nexus is that
the participants therein are credit cardholders of a company, policyholders of
an insurance company, customers of either a bank or broker-dealer or clients of
an investment adviser. The term "purchase" also includes purchases by employee
benefit plans not qualified under Section 401 of the Code, including purchases
by employees or by employers on behalf of employees, by means of a payroll
deduction plan or otherwise, of shares of the Fund. Purchases by such a company
or non- qualified employee benefit plan will qualify for the quantity discounts
discussed above only if the Fund and the Distributor are able to realize
economies of scale in sales effort and sales related expense by means of the
company, employer or plan making the Fund's Prospectus available to individual
investors or employees and forwarding investments by such persons to the Fund
and by any such employer or plan bearing the expense of any payroll deduction
plan.
 
  Right of Accumulation. Reduced sales charges are applicable through a right
of accumulation under which eligible investors are permitted to purchase Class
A or Class D shares of any of the three Portfolios subject to initial sales
charge at the offering price applicable to the total of (a) the public offering
price of the shares then being purchased plus (b) an amount equal to the then-
current net asset value or cost, whichever is higher, of the purchaser's
combined holdings of all classes of shares of the Funds and of any other MLAM-
advised mutual fund. For any such right of accumulation to be made available,
the Distributor must be provided at the time of purchase, by the purchaser or
the purchaser's securities dealer, with sufficient information to permit
confirmation of qualification, and acceptance of the purchase order is subject
to such confirmation. The right of accumulation may be amended or terminated at
any time. Shares held in the name of a nominee or custodian under pension,
profit-sharing or other employee benefit plans may not be combined with other
shares to qualify for the right of accumulation.
 
  Letter of Intention. Reduced sales charges are applicable to purchases
through any dealer aggregating $25,000 or more of Class A or Class D shares of
the High Income Portfolio or the Investment Grade Portfolio
 
                                       19
<PAGE>
 
and $100,000 or more of Class A shares of the Intermediate Term Portfolio or
any other MLAM-advised mutual funds made within a 13-month period starting
with the first purchase pursuant to a Letter of Intention in the form provided
by the Distributor. The Letter of Intention is available only to investors
whose accounts are maintained at the Fund's Transfer Agent. The Letter of
Intention is not a binding obligation to purchase any amount of Class A or
Class D shares, but its execution will result in the purchaser's paying a
lower sales charge at the appropriate quantity purchase level. A purchase not
originally made pursuant to a Letter of Intention may be included under a
subsequent Letter executed within 90 days of such purchase if the Distributor
is informed in writing of this intent within such 90-day period. The value of
Class A and Class D shares of any of the three Portfolios or of other MLAM-
advised mutual funds presently held, at cost or maximum offering price
(whichever is higher), on the date of the first purchase under the Letter of
Intention, may be included as a credit toward the completion of such Letter.
The reduced sales charge applicable to the amount covered by the Letter of
Intention will be applied only to new purchases. If the total amount of shares
purchased does not equal the amount stated in the Letter of Intention, the
investor will be notified and must pay, within 20 days of the expiration of
such Letter, the difference between the sales charge on Class A or Class D
shares of the Portfolio purchased at the reduced rate and the sales charge
applicable to the shares actually purchased through the Letter. Class A or
Class D shares equal to five percent of the intended amount will be held in
escrow during the 13-month period (while remaining registered in the name of
the purchaser). The first purchase under the Letter of Intention must be five
percent of the dollar amount of such Letter. If, during the term of such
Letter, a purchase brings the total amount invested to an amount equal to or
in excess of the amount indicated in the Letter, the purchaser will be
entitled on that purchase and subsequent purchases to the reduced percentage
sales charge which would be applicable to a single purchase equal to the total
dollar value of the Class A or Class D shares of the Portfolio then being
purchased under such Letter, but there will be no retroactive reduction of the
sales charges on any previous purchase. The value of any shares redeemed or
otherwise disposed of by the purchaser prior to termination or completion of
the Letter of Intention will be deducted from the total purchases made under
such Letter. An exchange from a MLAM-advised money market fund into any
Portfolio that creates a sales charge will count toward completing a new or
existing Letter of Intention in any Portfolio.
 
  TMA SM Managed Trusts. Class A shares are offered to TMA SM Managed Trusts
to which Merrill Lynch Trust Company provides discretionary trustee services
at net asset value.
   
  Merrill Lynch Blueprint SM Program. Class D shares of any of the three
Portfolios are offered to participants in the Merrill Lynch Blueprint SM
Program ("Blueprint"). In addition, participants in Blueprint who own Class A
shares of the Fund may purchase additional Class A shares of the Fund through
Blueprint. Blueprint is directed to small investors, Group IRAs and
participants in certain affinity groups such as benefit plans, credit unions
and trade associations. Investors placing orders to purchase Class A or Class
D shares of the Portfolios through Blueprint will acquire such Class A or
Class D shares at net asset value plus a sales charge calculated in accordance
with the Blueprint sales charge schedule (i.e., up to $5,000 at 3.5% for the
High Income and Investment Grade Portfolios and 0.80% for the Intermediate
Term Portfolios. Purchases greater than $5,000 will be at the standard sales
charge rate disclosed in the Prospectus). In addition, Class D shares of the
Portfolios are being offered at net asset value plus a sales charge of 0.50%
for participants in corporate or group IRA programs placing orders to purchase
their shares through Blueprint. However, services (including the exchange
privilege) available to Class A and Class D shareholders through Blueprint may
differ from those available to other investors in Class A or Class D shares.
Class A and Class D shares are offered at net asset value to participants in
the Merrill Lynch Blueprint SM Program through the Merrill     
 
                                      20
<PAGE>
 
Lynch Directed IRA Rollover Program ("IRA Rollover Program") available from
Merrill Lynch Business Financial Services, a business unit of Merrill Lynch.
The IRA Rollover Program is available to custodian rollover assets from
Employer Sponsored Retirement and Savings Plans (see definition below) whose
Trustee and/or Plan Sponsor offers the Merrill Lynch Directed IRA Rollover
Program. Orders for purchases and redemptions of Class A or Class D shares of
the Fund may be grouped for execution purposes which, in some circumstances,
may involve the execution of such orders two business days following the day
such orders are placed. The minimum initial purchase price is $100 with a $50
minimum for subsequent purchases through Blueprint. Minimum initial or
subsequent purchase requirements are waived in connection with automatic
investment plans for Blueprint participants. Additional information concerning
purchases through Blueprint, including any annual fees and transaction
charges, is available from Merrill Lynch, Pierce, Fenner & Smith Incorporated,
The Blueprint SM Program, P.O. Box 30441, New Brunswick, New Jersey 08989-
0441.
 
  Purchase Privileges of Certain Persons. Directors of the Fund, directors and
trustees of other MLAM-advised mutual funds, ML & Co. and its subsidiaries
(the term "subsidiaries," when used herein with respect to ML & Co., includes
MLAM, FAM and certain other entities directly or indirectly wholly owned and
controlled by ML & Co.), and their directors or employees, and any trust,
pension, profit-sharing or other benefit plan for such persons, may purchase
Class A shares of the Fund at net asset value.
 
  Class A shares of the Fund and other MLAM-advised mutual funds are offered
at net asset value to shareholders of Merrill Lynch Senior Floating Rate Fund
(formerly known as the Merrill Lynch Prime Fund, Inc.) who wish to reinvest
the net proceeds from a sale of certain of their shares of common stock of
Merrill Lynch Senior Floating Rate Fund in shares of the Fund. In order to
exercise this investment option, Merrill Lynch Senior Floating Rate Fund
shareholders must sell their Merrill Lynch Senior Floating Rate Fund shares to
the Merrill Lynch Senior Floating Rate Fund in connection with a tender offer
conducted by the Merrill Lynch Senior Floating Rate Fund and reinvest the
proceeds immediately in the Fund. This investment option is available only
with respect to the proceeds of Merrill Lynch Senior Floating Rate Fund shares
as to which no Early Withdrawal Charge (as defined in the Merrill Lynch Senior
Floating Rate Fund prospectus) is applicable. Purchase orders from Merrill
Lynch Senior Floating Rate Fund shareholders wishing to exercise this
investment option will be accepted only on the day that the related Merrill
Lynch Senior Floating Rate Fund tender offer terminates and will be effected
at the net asset value of the Fund at such day.
   
  Employee Access SM Accounts. Provided applicable threshold requirements are
met, either Class A or Class D shares are offered at net asset value to
Employee Access SM Accounts available through authorized employers. The
initial minimum for such accounts is $500, except that the initial minimum for
shares purchased for such accounts pursuant to the Automatic Investment
Program is $50.     
 
  Closed-End Fund Investment Option. Class A shares of the Fund and other
MLAM-advised mutual funds ("Eligible Class A Shares") are offered at net asset
value to shareholders of certain closed-end funds advised by the Investment
Adviser or MLAM who purchased such closed-end fund shares prior to October 21,
1994 (the date the Merrill Lynch Select Pricing SM System commenced
operations) and wish to reinvest the net proceeds from a sale of their closed-
end fund shares of common stock in Eligible Class A Shares of the Fund.
Alternatively, closed-end fund shareholders who purchased such shares on or
after October 21, 1994 and wish to reinvest the net proceeds from a sale of
their closed-end fund shares are offered Class A shares (if eligible to buy
Class A shares) or Class D shares of the Fund and other MLAM-advised mutual
funds ("Eligible Class D Shares"). In order to exercise this investment
option, closed-end fund shareholders must (i) sell their closed-end fund
shares through Merrill Lynch and reinvest the proceeds
 
                                      21
<PAGE>
 
immediately in the Eligible Class A or Class D Shares of the Fund, (ii) either
have acquired the shares in the closed-end fund's initial public offering or
through reinvestment of dividends earned on shares purchased in such offering,
(iii) have maintained their closed-end fund shares continuously in a Merrill
Lynch account, and (iv) purchase a minimum of $250 worth of Fund shares.
Similarly, Class D shares of the Portfolio are offered at a net asset value to
shareholders of Merrill Lynch Municipal Strategy Fund, Inc. ("Municipal
Strategy Fund") and Merrill Lynch High Income Municipal Bond Fund, Inc. ("High
Income Fund") who wish to purchase shares of the Fund with the net proceeds
from a sale of certain of their shares of common stock of Municipal Strategy
Fund and High Income Fund pursuant to a tender offer by Municipal Strategy Fund
or High Income Fund. This investment option is available only with respect to
the proceeds of Municipal Strategy Fund shares as to which no CDSC (as defined
in the Municipal Strategy Fund prospectus) is applicable, or with respect to
the proceeds of High Income Fund shares as to which no Early Withdrawal Charge
(as defined in the High Income Fund prospectus) is applicable.
 
  Class D shares of the Fund are offered at the net asset value, without sales
charge, to an investor who has a business relationship with a Merrill Lynch
Financial Consultant and who has invested in a mutual fund for which Merrill
Lynch has not served as a selected dealer if the following conditions are
satisfied: First, the investor must advise Merrill Lynch that he or she will
purchase Class D shares of a Portfolio with proceeds from a redemption of such
shares of other mutual funds and that such shares have been outstanding for a
period of no less than six months. Second, such purchase of Class D shares must
be made within 60 days after the redemption and the proceeds from the
redemption must have been maintained in the interim in cash or a money market
fund.
 
  Class D shares of the Portfolio are also offered at net asset value, without
sales charge, to an investor who has a business relationship with a Merrill
Lynch Financial Consultant and who has invested in a mutual fund sponsored by a
non-Merrill Lynch company for which Merrill Lynch has served as a selected
dealer and where Merrill Lynch has either received or given notice that such
arrangement will be terminated ("notice"), if the following conditions are
satisfied: First, the investor must purchase Class D shares of the Portfolio
with proceeds from a redemption of shares of such other mutual fund and such
fund was subject to a sales charge either at the time of purchase or on a
deferred basis. Second, such purchase of Class D shares must be made within 90
days after such notice.
 
  Class D shares of the Portfolios are offered at net asset value, without
sales charge, to an investor who has a business relationship with a Financial
Consultant who joined Merrill Lynch from another investment firm within six
months prior to the date of purchase by such investor, if the following
conditions are satisfied. First, the investor must advise Merrill Lynch that it
will purchase Class D shares with proceeds from a redemption of shares of a
mutual fund that was sponsored by the Financial Consultant's previous firm and
imposed a sales charge either at the time of purchase or on a deferred basis.
Second, the investor also must establish that such redemption had been made
within 60 days prior to the investment in a Portfolio of the Fund, and the
proceeds from the redemption had been maintained in the interim in cash or a
money market fund.
 
  Acquisition of Certain Investment Companies. The public offering price of
Class D shares of the Portfolios may be reduced to the net asset value per
Class D share in connection with the acquisition of the assets of or merger or
consolidation with a personal holding company or a public or private investment
company. The value of the assets or company acquired in a tax-free transaction
may in appropriate cases be
 
                                       22
<PAGE>
 
adjusted to reduce possible adverse tax consequences to the Fund which might
result from an acquisition of assets having net unrealized appreciation which
is disproportionately higher at the time of acquisition than the realized or
unrealized appreciation of the Fund.
 
  The issuance of Class D shares for consideration other than cash is limited
to bona fide reorganizations, statutory mergers or other acquisitions of
portfolio securities which (i) meet the investment objectives and policies of
the Fund; (ii) are acquired for investment and not for resale (subject to the
understanding that the disposition of the Fund's portfolio securities shall at
all times remain within its control); and (iii) are liquid securities, the
value of which is readily ascertainable, which are not restricted as to
transfer either by law or liquidity of market (except that the Fund may acquire
through such transactions restricted or illiquid securities to the extent the
Fund does not exceed the applicable limits on acquisition of such securities
set forth under "Investment Objective and Policies" herein).
 
  Reductions in or exemptions from the imposition of a sales charge are due to
the nature of the investors and/or the reduced sales efforts that will be
needed in obtaining such investments.
 
EMPLOYER-SPONSORED RETIREMENT OR SAVINGS PLANS AND CERTAIN OTHER ARRANGEMENTS
 
  Certain employer-sponsored retirement or savings plans and certain other
arrangements may purchase Class A or Class D shares at net asset value, based
on the number of employees or number of employees eligible to participate in
the plan, the aggregate amount invested by the plan in specified investments
and/or the services provided by Merrill Lynch to the plan. Certain other plans
may purchase Class B shares with a waiver of the CDSC upon redemption, based on
similar criteria. Such Class B shares will convert into Class D shares
approximately ten years after the plan purchases the first share of any MLAM-
advised mutual fund. Minimum purchase requirements may be waived or varied for
such plans. Additional information regarding purchases by employer-sponsored
retirement or savings plans and certain other arrangements is available toll-
free from Merrill Lynch Business Financial Services at (800) 237-7777.
 
DISTRIBUTION PLAN
   
  Reference is made to "Purchase of Shares--Deferred Sales Charge
Alternatives--Class B and Class C Shares--Distribution Plan" in the Prospectus
for certain information with respect to the separate distribution plans of the
Fund for Class B, Class C and Class D shares pursuant to Rule 12b-1 under the
Investment Company Act (each a "Distribution Plan") with respect to the account
maintenance and/or distribution fees paid by the Fund to the Distributor with
respect to such classes. For the fiscal year ended September 30, 1997, the High
Income, Investment Grade and Intermediate Term Portfolios paid the Distributor
$36,108,272, $4,943,306 and $950,958, respectively, pursuant to the Class B
Distribution Plan (based on average net assets subject to such Class B
Distribution Plan of approximately $4.8 billion, $659.1 million and $190.2
million, respectively) all of which were paid to Merrill Lynch for providing
account maintenance and distribution-related activities and services in
connection with Class B shares. For the fiscal year ended September 30, 1997,
the High Income, Investment Grade and Intermediate Term Portfolios paid the
Distributor $3,921,960, $471,625 and $35,211, respectively, pursuant to the
Class C Distribution Plan (based on average net assets subject to such Class C
Distribution Plan of approximately $490.2 million, $59.0 million and $7.0
million, respectively) all of which were paid to Merrill Lynch for providing
account maintenance and distribution-related activities and services in
connection with Class C shares. For the fiscal year ended September 30, 1997,
the High Income, Investment Grade and Intermediate Term Portfolios paid the
Distributor $972,042, $176,298 and $51,884, respectively, pursuant to the Class
D Distribution Plan (based     
 
                                       23
<PAGE>
 
   
on average net assets subject to such Class D Distribution Plan of
approximately $388.8 million, $70.5 million and $51.9 million, respectively)
all of which were paid to Merrill Lynch for providing account maintenance
activities in connection with Class D shares.     
   
  Payments of the account maintenance fees and/or distribution fees are subject
to the provisions of Rule 12b-1 under the Investment Company Act. Among other
things, each Distribution Plan provides that the Distributor shall provide and
the directors shall review quarterly reports of the disbursement of the account
maintenance fees and/or distribution fees paid to the Distributor. In their
consideration of each Distribution Plan, the directors must consider all
factors they deem relevant, including information as to the benefits of the
Distribution Plan to the Fund and its related class of shareholders of the
relevant Portfolio. Each Distribution Plan further provides that, so long as
the Distribution Plan remains in effect, the selection and nomination of
directors who are not "interested persons" of the Fund, as defined in the
Investment Company Act (the "Independent Directors"), shall be committed to the
discretion of the Independent Directors then in office. In approving each
Distribution Plan in accordance with Rule 12b-1, the Independent Directors
concluded that there is reasonable likelihood that such Distribution Plan will
benefit the Fund and its related class of shareholders of the relevant
Portfolio. Each Distribution Plan can be terminated at any time, without
penalty, by the vote of a majority of the Independent Directors or by the vote
of the holders of a majority of the outstanding related class of voting
securities of any Portfolio. A Distribution Plan cannot be amended to increase
materially the amount to be spent by any Portfolio without the approval of the
related class of shareholders of that Portfolio, and all material amendments
are required to be approved by the vote of directors, including a majority of
the Independent Directors who have no direct or indirect financial interest in
such Distribution Plan, cast in person at a meeting called for that purpose.
Rule 12b-1 further requires that the Fund preserve copies of each Distribution
Plan and any report made pursuant to such plan for a period of not less than
six years from the date of such Distribution Plan or such report, the first two
years in an easily accessible place.     
 
LIMITATIONS ON THE PAYMENT OF DEFERRED SALES CHARGES
   
  The maximum sales charge rule in the Rules of Fair Practice of the National
Association of Securities Dealers, Inc. ("NASD") imposes a limitation on
certain asset-based sales charges, such as the distribution fee and the CDSC
borne by the Class B and Class C shares but not the account maintenance fees.
The maximum sales charge rule is applied separately by each class of a
Portfolio. As applicable to the Fund, the maximum sales charge rule limits the
aggregate of distribution fee payments and CDSCs payable by a Portfolio to the
sum of (1) 6.25% of eligible gross sales of Class B shares and Class C shares
of that Portfolio, computed separately (defined to exclude shares issued
pursuant to dividend reinvestment and exchanges) and (2) interest on the unpaid
balance for the respective class and portfolio computed separately at the prime
rate plus 1% (the unpaid balance being the maximum amount payable minus amounts
received from the payment of the distribution fee and the CDSC). In connection
with the Class B shares, the Distributor has voluntarily agreed to waive
interest charges on the unpaid balance in excess of 0.50% of eligible gross
sales. Consequently, the maximum amount payable to the Distributor (referred to
as the "voluntary maximum") in connection with Class B shares in each Portfolio
is 6.75% of eligible gross sales. The Distributor retains the right to stop
waiving the interest charge at any time. To the extent payments would exceed
the voluntary maximum, the Fund will not make further payments of the
distribution fee with respect to Class B shares, and any CDSCs will be paid to
the Fund rather than to the Distributor; however, the Fund will continue to
make payments of the account maintenance fees. In certain circumstances the
amount payable pursuant to the voluntary maximum may exceed the amount payable
under the NASD formula. In such circumstances, payment in excess of the amount
payable under the NASD formula will not be made.     
 
                                       24
<PAGE>
 
   
  The following tables set forth comparative information as of September 30,
1997 with respect to the Class B and Class C shares of each Portfolio
indicating the maximum allowable payments that can be made under the NASD
maximum sales charge rule and the Distributor's voluntary maximum for the
period October 21, 1988 (commencement of Class B operations) to September 30,
1997 for the High Income and Investment Grade Portfolios, for the period
November 13, 1992 (commencement of Class B operations) to September 30, 1997
for the Intermediate Term Portfolio, and for the period October 21, 1994
(commencement of operations) to September 30, 1997 for Class C shares of each
Portfolio.     
                    
                 DATA CALCULATED AS OF SEPTEMBER 30, 1997     
                             HIGH INCOME PORTFOLIO
                                 (IN THOUSANDS)
 
<TABLE>   
<CAPTION>
                                                                                                       ANNUAL
                                                      ALLOWABLE               AMOUNT                DISTRIBUTION
                                          ALLOWABLE    INTEREST  MAXIMUM    PREVIOUSLY   AGGREGATE FEE AT CURRENT
                          ELIGIBLE        AGGREGATE   ON UNPAID   AMOUNT     PAID TO      UNPAID     NET ASSET
CLASS B                  GROSS SALES    SALES CHARGES BALANCE(2) PAYABLE  DISTRIBUTOR(3)  BALANCE     LEVEL(4)
- -------                  -----------    ------------- ---------- -------- -------------- --------- --------------
<S>                      <C>            <C>           <C>        <C>      <C>            <C>       <C>
Under NASD Rule as
 Adopted................ $5,493,514(1)    $343,344     $77,477   $420,821    $103,893    $316,928     $27,477
Under Distributor's
 Voluntary Waiver....... $5,493,514(1)    $343,344     $27,467   $370,811    $103,893    $266,918     $27,477
CLASS C
- -------
Under NASD Rule as
 Adopted................ $  702,733       $ 43,920     $ 4,936   $ 48,856    $  4,860    $ 43,996     $ 3,512
</TABLE>    
 
                           INVESTMENT GRADE PORTFOLIO
                                 (IN THOUSANDS)
<TABLE>   
<CAPTION>
                                                                                                     ANNUAL
                                                     ALLOWABLE             AMOUNTS                DISTRIBUTION
                                         ALLOWABLE    INTEREST  MAXIMUM   PREVIOUSLY   AGGREGATE FEE AT CURRENT
                          ELIGIBLE       AGGREGATE   ON UNPAID  AMOUNT     PAID TO      UNPAID     NET ASSET
CLASS B                  GROSS SALES   SALES CHARGES BALANCE(2) PAYABLE DISTRIBUTOR(3)  BALANCE     LEVEL(4)
- -------                  -----------   ------------- ---------- ------- -------------- --------- --------------
<S>                      <C>           <C>           <C>        <C>     <C>            <C>       <C>
Under NASD Rule as
 Adopted................  $944,299(1)     $59,019     $17,980   $76,999    $25,838      $51,161      $2,889
Under Distributor's
 Voluntary Waiver.......  $944,299(1)     $59,019     $ 4,721   $63,740    $25,838      $37,902      $2,889
CLASS C
- -------
Under NASD Rule as
 Adopted................  $ 78,977        $ 4,936     $   682   $ 5,618    $   713      $ 4,905      $  274
</TABLE>    
 
                          INTERMEDIATE TERM PORTFOLIO
                                 (IN THOUSANDS)
<TABLE>   
<CAPTION>
                                                                                                     ANNUAL
                                                     ALLOWABLE             AMOUNTS                DISTRIBUTION
                                         ALLOWABLE    INTEREST  MAXIMUM   PREVIOUSLY   AGGREGATE FEE AT CURRENT
                          ELIGIBLE       AGGREGATE   ON UNPAID  AMOUNT     PAID TO      UNPAID     NET ASSET
CLASS B                  GROSS SALES   SALES CHARGES BALANCE(2) PAYABLE DISTRIBUTOR(6)  BALANCE     LEVEL(4)
- -------                  -----------   ------------- ---------- ------- -------------- --------- --------------
<S>                      <C>           <C>           <C>        <C>     <C>            <C>       <C>
Under NASD Rule as
 Adopted................  $192,774(5)     $12,048      $2,666   $14,714     $3,275      $11,439       $370
Under Distributor's
 Voluntary Waiver.......  $192,774(5)     $12,048      $  963   $13,011     $3,275      $ 9,736       $370
CLASS C
- -------
Under NASD Rule as
 Adopted................  $  5,574        $   348      $   48   $   396     $   52      $   344       $  4
</TABLE>    
 
                                       25
<PAGE>
 
- --------
(1) Purchase price of all eligible Class B shares sold since October 21, 1988
    (commencement of Class B operations) other than shares acquired through
    dividend reinvestment and the exchange privilege.
(2) Interest is computed on a monthly average Prime Rate basis based upon the
    prime rate, as reported in The Wall Street Journal, plus 1.0%, as
    permitted under the NASD Rule.
   
(3) Consists of CDSC payments, distribution fee payment and accruals. Of these
    distribution fee payments made on Class B shares prior to July 3, 1993
    under the Prior Plan at the 0.75% rate, 0.50% of average daily net assets
    has been treated as a distribution fee and 0.25% of average daily net
    assets has been deemed to have been a service fee and not subject to the
    NASD maximum sales charge rule. See "Purchase of Shares--Distribution
    Plans" in the Prospectus. This figure may include CDSCs that were deferred
    when a shareholder redeemed shares prior to the expiration of the
    applicable CDSC period and invested the proceeds, without the imposition
    of a sales charge, in Class A shares in conjunction with the shareholder's
    participation in the Merrill Lynch Mutual Funds Advisor ("MFA") program.
    The CDSC is booked as a contingent obligation that may be payable if the
    shareholder terminates participation in the MFA program.     
(4) Provided to illustrate the extent to which the current level of
    distribution fee payments (not including any CDSC payments) is amortizing
    the unpaid balance. No assurance can be given that payments of the
    distribution fee will reach either the voluntary maximum or the NASD
    maximum.
(5) Purchase price of all eligible Class B shares sold since November 13, 1992
    (commencement of Class B operations) other than shares acquired through
    dividend reinvestment and the exchange privilege.
(6) Consists of CDSC payments, distribution fee payments and accruals. Of
    these distribution fee payments made prior to July 6, 1993 on Class B
    shares under the Prior Plan at the 0.50% rate, 0.25% of average daily net
    assets has been treated as a distribution fee and 0.25% of average daily
    net assets has been deemed to have been a service fee and not subject to
    the NASD maximum sales charge rule.
 
                             REDEMPTION OF SHARES
   
  The right to redeem shares or to receive payment with respect to any
redemption may only be suspended for any period during which trading on the
NYSE is restricted as determined by the Commission or such Exchange is closed
(other than customary weekend and holiday closings), for any period during
which an emergency exists as defined by the Commission as a result of which
disposal of portfolio securities or determination of the net asset value of
any Portfolio is not reasonably practicable, and for such other periods as the
Commission may by order permit for the protection of shareholders of each
Portfolio. Reference is made to "Redemption of Shares" in the Prospectus for
certain information as to the redemption and repurchase of Fund shares.     
 
  The value of shares at the time of redemption may be more or less than the
shareholder's cost, depending on the market value of the securities held by
each Portfolio at such time.
 
REPURCHASE
   
  The Fund will normally accept orders to repurchase shares by wire or
telephone from dealers for their customers at the net asset value next
computed after receipt of the order by the dealer, provided that the request
for repurchase is received by the dealer prior to the close of business on the
NYSE on the day received and is received by the Fund from such dealer not
later than 30 minutes after the close of business on the NYSE (generally 4:00
p.m., New York City time), on the same day. Dealers have the responsibility of
submitting such repurchase requests to the Fund not later than 30 minutes
after the close of business on the NYSE (generally 4:00 p.m., New York City
time), in order to obtain that day's closing price.     
 
 
                                      26
<PAGE>
 
  For shareholders submitting their shares for repurchase through listed
securities dealers, payment for fractional shares will be made by the Transfer
Agent directly to the shareholder and payment for full shares will be made by
the securities dealer within seven days of the proper tender of the
certificates, if any, and stock power or letter requesting redemption, in each
instance with signatures guaranteed as noted in the Prospectus.
 
REINSTATEMENT PRIVILEGE
 
  Shareholders who have redeemed Class A or Class D shares of any Portfolio,
including redemption through repurchase by the Fund, have a one-time privilege
to reinstate their accounts by purchasing Class A or Class D shares, as the
case may be, of such Portfolio at the net asset value of such shares without a
sales charge up to the dollar amount redeemed. The reinstatement privilege may
be exercised as follows. A notice to exercise this privilege along with a check
for the amount to be reinstated must be received by the Transfer Agent within
30 days after the date the request for redemption was accepted by the Transfer
Agent or the Distributor. The reinstatement will be made at the net asset value
per share next determined after the notice of reinstatement is received and
cannot exceed the amount of the redemption proceeds. The reinstatement
privilege is a one-time privilege and may be exercised by the shareholder only
the first time such shareholder makes a redemption. A redemption resulting in a
gain is a taxable event whether or not the reinstatement privilege is
exercised. A redemption resulting in a loss will not be a taxable event to the
extent the reinstatement privilege is exercised, and an adjustment will be made
to the shareholder's tax basis in shares acquired pursuant to the reinstatement
to reflect the disallowed loss.
 
  If a shareholder disposes of shares within 90 days of their acquisition and
subsequently reacquires shares of the Fund pursuant to the reinstatement
privilege, then the shareholder's tax basis in those shares disposed of will be
reduced to the extent the load charge paid to the Fund upon the shareholder's
initial purchase reduces any load charge such shareholder would have been
required to pay on the subsequent acquisition in absence of the reinstatement
privilege. Instead, such load charge will be treated as an amount paid for the
subsequently acquired shares and will be included in the shareholder's tax
basis for such shares.
 
DEFERRED SALES CHARGE--CLASS B AND CLASS C SHARES.
   
  As discussed in the Prospectus under "Purchase of Shares--Alternative Sale
Arrangements--Deferred Sales Charge Alternative--Class B and Class C Shares,"
while Class B shares of the High Income Portfolio and the Investment Grade
Portfolio redeemed within four years of purchase and Class B shares of the
Intermediate Term Portfolio redeemed within one year of purchase are subject to
a contingent deferred sales charge under most circumstances, the charge is
waived on redemptions of Class B shares in certain instances including in
connection with certain post-retirement withdrawals from an Individual
Retirement Account ("IRA") or other retirement plan or following the death or
disability of a Class B shareholder. Redemptions for which the waiver applies
in the case of such withdrawals are: (a) any partial or complete redemption in
connection with a distribution following retirement under a tax-deferred
retirement plan or attaining age 59 1/2 in the case of an IRA or other
retirement plan, or part of a series of equal periodic payments (not less
frequently than annually) made for the life (or life expectancy) or any
redemption resulting from the tax-free return of an excess contribution to an
IRA; or (b) any partial or complete redemption following the death or
disability (as defined in the Internal Revenue Code) of a Class B shareholder
(including one who owns the Class B shares as joint tenant with his or her
spouse), provided the redemption is requested within one year of the death or
initial determination of disability.     
 
                                       27
<PAGE>
 
   
  During the fiscal year ended September 30, 1995, Merrill Lynch received
contingent deferred sales charges of $5,011,340 with respect to Class B shares
of the High Income Portfolio, $1,112,592 with respect to Class B shares of the
Investment Grade Portfolio and $291,980 with respect to Class B shares of the
Intermediate Term Portfolio. During the fiscal year ended September 30, 1996,
Merrill Lynch received contingent deferred sales charges of $4,772,201 with
respect to Class B shares of the High Income Portfolio, $1,143,774 with
respect to Class B shares of the Investment Grade Portfolio and $292,161 with
respect to Class B shares of the Intermediate Term Portfolio. During the
fiscal year ended September 30, 1997, Merill Lynch received contingent
deferred sales charges of $6,548,694 with respect to Class B Shares of the
High Income Portfolio, $1,334,720 with respect to Class B Shares of the
Investment Grade Portfolio and $187,231 with respect to Class B Shares of the
Intermediate Term Portfolio all of which were paid to Merrill Lynch.
Additional CDSCs payable to the Distributor during the fiscal year end
September 30, 1997, may have been waived or converted to a contingent
obligation in connection with a shareholder's participation in certain fee-
based programs.     
   
  With respect to Class C shares of the High Income Portfolio, the Investment
Grade Portfolio and the Intermediate Term Portfolio, from October 21, 1994,
the inception of the class to the period ended September 30, 1997, Merrill
Lynch received CDSCs of $537,422, $83,389 and $9,497, respectively, all of
which were paid to Merrill Lynch.     
 
  Merrill Lynch Blueprint SM Program. Class B shares of all three Portfolios
are offered to certain participants in the Merrill Lynch BlueprintSM Program
("Blueprint"). Blueprint is directed to small investors and participants in
certain affinity groups such as trade associations and credit unions. Class B
shares are offered through Blueprint only to members of certain affinity
groups. The contingent deferred sales charge is waived for shareholders who
are members of certain affinity groups at the time orders to purchase Class B
shares are placed through Blueprint. However, services (including the exchange
privilege) available to Class B shareholders through Blueprint may differ from
those available to other Class B investors. Orders for purchases and
redemptions of Class B shares may be grouped for execution purposes which, in
some circumstances, may involve the execution of such orders two business days
following the day such orders are placed. The minimum initial purchase price
is $100 with a $50 minimum for subsequent purchases through Blueprint. Minimum
investment amounts are waived in connection with automatic investment plans
for Blueprint participants. Additional information concerning these Blueprint
programs, including any annual fees or transaction charges, is available from
Merrill Lynch, Pierce, Fenner & Smith Incorporated, The BlueprintSM Program,
P.O. Box 30441, New Brunswick, New Jersey 08989-0441.
 
                                      28
<PAGE>
 
                       DIVIDENDS DISTRIBUTIONS AND TAXES
 
DIVIDENDS AND DISTRIBUTIONS
   
  Reference is made to "Dividends, Distributions and Taxes" on page 46 of the
Prospectus.     
 
FEDERAL INCOME TAXES
          
  The Fund intends to continue to qualify for the special tax treatment
afforded regulated investment companies ("RICs") under the Internal Revenue
Code of 1986, as amended (the "Code"). As long as it so qualifies, the Fund
(but not its shareholders) will not be subject to Federal income tax on the
part of its net ordinary income and net realized capital gains which it
distributes to Class A, Class B, Class C and Class D shareholders (together,
the "shareholders"). The Fund intends to distribute substantially all of such
income.     
   
  Dividends paid by the Fund from its ordinary income or from an excess of net
short-term capital gains over net long-term capital losses (together referred
to hereafter as "ordinary income dividends") are taxable to shareholders as
ordinary income. Distributions made from an excess of net long-term capital
gains over net short-term capital losses ("capital gain dividends") are taxable
to shareholders as long-term capital gains, regardless of the length of time
the shareholder has owned Fund shares. Recent legislation creates additional
categories of capital gains taxable at different rates. Although the
legislation does not explain how gain in these categories will be taxed to
shareholders of RICs, it authorizes regulations applying the new categories of
gain and the new rates to sales of securities by RICs. In the absence of
guidance, there is some uncertainty as to the manner in which the categories of
gain and related rates will be passed through to the shareholders in capital
gain dividends. Any loss upon the sale or exchange of Fund shares held for six
months or less, however, will be treated as long-term capital loss to the
extent of any capital gain dividends received by the shareholder. Distributions
in excess of the Fund's earnings and profits will first reduce the adjusted tax
basis of a holder's shares and, after such adjusted tax basis is reduced to
zero, will constitute capital gains to such holder (assuming the shares are
held as a capital asset). Although the Fund may invest in certain municipal
securities, it is not anticipated that any portion of the dividends paid by the
Fund will qualify for tax-exempt treatment to shareholders.     
   
 Ordinary income dividends paid to shareholders who are nonresident aliens or
foreign entities will be subject to a 30% United States withholding tax under
existing provisions of the Code applicable to foreign individuals and entities
unless a reduced rate of withholding or a withholding exemption is provided
under applicable treaty law. Nonresident shareholders are urged to consult
their own tax advisors concerning the applicability of the United States
withholding tax.     
 
  Some shareholders may be subject to a 31% withholding tax on reportable
dividends, capital gains distributions and redemption payments ("backup
withholding"). Generally, shareholders subject to backup withholding will be
those for whom a certified taxpayer identification number is not on file with
the Fund or who, to the Fund's knowledge, have furnished an incorrect number.
When establishing an account, an investor must certify under penalties of
perjury that such number is correct and that he is not otherwise subject to
backup withholding.
   
  Dividends and interest received by the Fund may give rise to withholding and
other taxes imposed by foreign countries. Tax conventions between certain
countries and the United States may reduce or eliminate such taxes.     
 
  No gain or loss will be recognized by Class B shareholders on the conversion
of their Class B shares for Class D shares. A shareholder's basis in the Class
D shares acquired will be the same as such shareholder's
 
                                       29
<PAGE>
 
basis in the Class B shares converted, and the holding period of the acquired
Class D shares will include the holding period of the converted Class B shares.
 
  A loss realized on a sale or exchange of shares of the Fund will be
disallowed if other Fund shares are acquired (whether through the automatic
reinvestment of dividends or otherwise) within a 61-day period beginning 30
days before and ending 30 days after the date that the shares are disposed of.
In such a case, the basis of the shares acquired will be adjusted to reflect
the disallowed loss.
 
  The Code imposes a 4% nondeductible excise tax on a regulated investment
company, such as the Fund, if it does not distribute to its shareholders during
the calendar year an amount equal to 98 percent of the Fund's investment
company income, with certain adjustments, for such calendar year, plus 98
percent of the Fund's capital gain net income for the one-year period ending on
October 31, of such calendar year. In addition, an amount equal to any
undistributed investment company taxable income or capital gain net income from
the previous calendar year must also be distributed to avoid the excise tax.
While the Fund intends to distribute its income and capital gains in the manner
necessary to avoid imposition of the 4% excise tax, there can be no assurance
that sufficient amounts of the Fund's taxable income and capital gains will be
distributed to avoid entirely the imposition of the tax. The excise tax is
imposed on the amount by which the regulated investment company does not meet
the foregoing distribution requirements.
 
  Only dividends paid by the Fund which are attributable to dividends received
by the Fund will qualify for the 70% dividends-received deduction for
corporations. In addition, corporate shareholders must have held their shares
in the Fund for more than 45 days to qualify for the deduction on dividends
paid by the Fund. Because most of the income of each Portfolio will be interest
income, rather than dividends on common or preferred stock, it is unlikely that
any substantial proportion of its distributions will be eligible for the
dividends-received deduction available for corporations under the Code.
   
  At September 30, 1997, the Fund had a capital loss carryforward of
approximately $36,992,000 in the Investment Grade Portfolio of which
$34,388,000 expires in 2003 and 2,604,000 expires in 2005, and approximately
$10,983,000 in the Intermediate Term Portfolio of which $10,707,000 expires in
2003 and $276,000 expires in 2005. These amounts will be available to offset
like amounts of any future taxable gains.     
 
  Dividends to shareholders who are nonresident aliens, trusts, estates,
partnerships or corporations may be subject to a 30% United States withholding
tax unless a reduced rate of withholding is provided under an applicable tax
treaty. Shareholders who are nonresident aliens or foreign entities are urged
to consult their own tax advisers concerning the applicability of the United
States withholding tax.
 
  The foregoing is a general and abbreviated summary of the applicable
provisions of the Code and Treasury Regulations presently in effect. For the
complete provisions, reference should be made to the pertinent sections of the
Code and the Treasury Regulations promulgated thereunder. The Code and
Regulations are subject to change by legislative or administrative action.
 
TAX TREATMENT OF TRANSACTIONS IN OPTIONS ON DEBT SECURITIES, FUTURES CONTRACTS
AND OPTIONS THEREON
 
  Each Portfolio of the Fund may purchase and sell interest rate futures
contracts and may write and purchase call and put options on such futures
contracts and on certain debt securities. The Portfolios may write or purchase
options which will be classified as "nonequity options" under the Code.
Generally, gain
 
                                       30
<PAGE>
 
and loss resulting from transactions in options on debt securities, as well as
gain and loss from transactions in futures contracts and options thereon, will
be treated as long-term capital gain or loss to the extent of 60 percent
thereof and short-term capital gain or loss to the extent of 40 percent thereof
(hereinafter "blended gain or loss"). In the case of the exercise or assignment
of an option on a debt security, the premium paid or received by the Fund
generally will adjust the gain or loss on disposition of the underlying
security.
 
  Any option or futures contract held by a Portfolio on the last day of a
fiscal year will be treated as sold for market value on that date, and gain or
loss recognized as a result of such deemed sale will be blended gain or loss.
The capital gains and losses of each Portfolio will be combined in each fiscal
year to determine the capital gains and losses of the Fund, as described above.
 
  In addition, the Portfolio's trading strategies may constitute "straddle"
transactions with futures contracts, options thereon and options on debt
securities. "Straddles" may affect the taxation of futures contracts and
options, and may cause the postponement of recognition of losses incurred in
certain closing transactions.
 
  The requirements for classification as a regulated investment company may
restrict the Fund's ability to engage in certain options and futures contract
transactions. The Fund has obtained a private letter ruling from the Internal
Revenue Service providing the Fund with relief from certain provisions of the
Code which might otherwise affect its ability to engage in such transactions.
 
                              SHAREHOLDER SERVICES
 
  The Fund offers a number of shareholder services described below which are
designed to facilitate investment in its shares. Full details as to each of
such services and copies of the various plans described below can be obtained
from the Fund, the Distributor or Merrill Lynch. Certain of these services are
available only to U.S. investors.
 
INVESTMENT ACCOUNT
 
  Each shareholder whose account is maintained at the Transfer Agent has an
Investment Account and will receive statements at least quarterly, from the
Transfer Agent. These statements will serve as transaction confirmations for
automatic investment purchases and the reinvestment of ordinary income
dividends and long-term capital gains distributions. The statements will also
show any other activity in the account since the preceding statement.
Shareholders will receive separate transaction confirmations for each purchase
or sale transaction other than automatic investment purchases and the
reinvestment of ordinary income dividends and long-term capital gains
distributions. A shareholder may make additions to his Investment Account at
any time by mailing a check directly to the Fund's Transfer Agent.
 
  Share certificates are issued only for full shares and only upon the specific
request of the shareholder. Issuance of certificates representing all or only
part of the full shares in an Investment Account may be requested by a
shareholder directly from the Fund's Transfer Agent.
 
  Shareholders considering transferring their Class A shares from Merrill Lynch
to another brokerage firm or financial institution should be aware that, if the
firm to which the Class A or Class D shares are to be transferred will not take
delivery of shares of the Fund, a shareholder either must redeem the Class A or
Class D shares (paying any applicable CDSC) so that the cash proceeds can be
transferred to the account at
 
                                       31
<PAGE>
 
the new firm or such shareholder must continue to maintain an Investment
Account at the transfer agent for those Class A or Class D shares. Shareholders
interested in transferring their Class B or Class C shares from Merrill Lynch
and who do not wish to have an Investment Account maintained for such shares at
the Transfer Agent may request their new brokerage firm to maintain such shares
in an account registered in the name of the brokerage firm for the benefit of
the shareholder at the transfer agent. If the new brokerage firm is willing to
accommodate the shareholder in this manner, the shareholder must request that
he or she be issued certificates for his shares, and then must turn the
certificates over to the new firm for re-registration as described in the
preceding sentence. Shareholders considering transferring a tax-deferred
retirement account such as an individual retirement account from Merrill Lynch
to another brokerage firm or financial institution should be aware that, if the
firm to which the retirement account is to be transferred will not take
delivery of shares of the Fund, a shareholder must either redeem the shares
(paying any applicable CDSC) so that the cash proceeds can be transferred to
the account at the new firm, or such shareholder must continue to maintain a
retirement account with Merrill Lynch for those shares.
 
AUTOMATIC INVESTMENT PLANS
   
  A shareholder may make additions to an Investment Account (as described in
the Prospectus under "Shareholder Services--Investment Account" on page 50) at
any time by purchasing Class A shares (if he or she is an eligible Class A
investor as described in the Prospectus) or Class B, Class C or Class D shares
at the applicable public offering price either through the shareholder's
securities dealer or by mail directly to the Fund's Transfer Agent, acting as
agent for such securities dealer. Voluntary accumulation also can be made
through a service known as the Fund's Automatic Investment Plan whereby the
Fund is authorized through pre-authorized checks or automated clearing house
debits of $50 or more to charge the regular bank account of the shareholder on
a regular basis to provide systematic additions to the Investment Account of
such shareholder. For investors who buy shares of the fund through Blueprint no
minimum charge to the investors' bank accounts is required. An investor whose
shares of the Fund are held within a CMA (R) or CBA (R) account may arrange to
have periodic investments made in the Fund in amounts of $100 or more ($1 for
retirement accounts) through the CMA (R)/CBA (R) Automated Investment Program.
    
FEE-BASED PROGRAMS
 
  Certain Merrill Lynch fee-based programs, including pricing alternatives for
securities transactions (each referred to in this paragraph as a "Program"),
may permit the purchase of Class A shares at net asset value. Under specified
circumstances, participants in certain Programs may deposit other classes of
shares which will be exchanged for Class A shares. Initial or deferred sales
charges otherwise due in connection with such exchanges may be waived or
modified, as may the Conversion Period applicable to the deposited shares.
Termination of participation in a Program may result in the redemption of
shares held therein or the automatic exchange thereof to another class at net
asset value, which may be shares of a money market fund. In addition, upon
termination of participation in a Program, shares that have been held for less
than specified periods within such Program may be subject to a fee based upon
the current value of such shares. These Programs also generally prohibit such
shares from being transferred to another account at Merrill Lynch, to another
broker-dealer or to the Transfer Agent. Except in limited circumstances (which
may also involve an exchange as described above), such shares must be redeemed
and another class of shares purchased (which may involve the imposition of
initial or deferred sales charges and distribution and account maintenance
fees) in order for the investment not to be subject to Program fees. Additional
information regarding a specific
 
                                       32
<PAGE>
 
   
Program (including charges and limitations on transferability applicable to
shares that may be held in such Program) is available in such Program's client
agreement and from the Transfer Agent at (800) MER-FUND or (800) 637-3863.     
 
AUTOMATIC REINVESTMENT OF DIVIDENDS AND CAPITAL GAINS DISTRIBUTIONS
 
  Unless specific instructions to the contrary are given as to the method of
payment of dividends and capital gains distributions, dividends and
distributions will be reinvested automatically in additional shares of the
Fund. Such reinvestment will be at the net asset value of shares of the Fund as
of the close of business on the ex-dividend date of the dividend or
distribution. Shareholders may elect in writing to receive either their
dividends or capital gains distributions, or both, in cash, in which event
payment will be mailed or direct deposited on or about the payment date.
   
  Shareholders may, at any time, notify Merrill Lynch in writing if the
shareholder's account is maintained with Merrill Lynch or notify the Transfer
Agent in writing or by telephone (1-800-MER-FUND) that they no longer wish to
have their dividends and/or distributions reinvested in shares of the Fund or
vice versa, and commencing ten days after receipt by the transfer agent of such
notice, those instructions will be effected. The Fund is not responsible for
any failure of delivery to the shareholder's address of record and no interest
will accrue on amounts represented by uncashed distribution or redemption
checks.     
 
SYSTEMATIC WITHDRAWAL PLANS
   
  A shareholder of any of the Portfolios may elect to make systematic
withdrawals from an Investment Account of Class A, Class B, Class C or Class D
shares in the form of payments by check or through automatic payment by direct
deposit to such shareholder's bank account on either a monthly or quarterly
basis as provided below. Quarterly withdrawals are available for shareholders
who have acquired shares of the Fund having a value, based on cost or upon the
current net asset value, of $5,000 or more, and monthly withdrawals are
available for shareholders with shares having a value of $10,000 or more.     
   
  At the time of each withdrawal payment, sufficient shares are redeemed from
those on deposit in the shareholder's account to provide the withdrawal payment
specified by the shareholder. The shareholder may specify the dollar amount and
class of shares to be redeemed. Redemptions will be made at net asset value as
determined as of 15 minutes after the close of business on the NYSE (generally
4:00 p.m., New York City time) on the 24th day of each month or the 24th day of
the last month of each quarter, whichever is applicable. If the NYSE is not
open for business on such date, the shares will be redeemed at the close of
business on the following business day. The check for the withdrawal payment
will be mailed or the direct deposit of the withdrawal payment will be made on
the next business day following redemption. When a shareholder is making
systematic withdrawals, dividends and distributions on all shares in the
Investment Account are reinvested automatically in shares of the applicable
Portfolio. A shareholder's Systematic Withdrawal Plan may be terminated at any
time, without charge or penalty, by the shareholder, the Fund, the Transfer
Agent or the Distributor.     
   
  Withdrawal payments should not be considered as dividends, yields or income.
Each withdrawal is a taxable event. If periodic withdrawals continuously exceed
reinvested dividends, the shareholder's original investment may be
correspondingly reduced. Purchases of additional shares concurrent with
withdrawals are ordinarily disadvantageous to the shareholder because of sales
charges and tax liabilities. The Fund will not knowingly accept purchase orders
for shares of the Fund from investors who maintain a Systematic     
 
                                       33
<PAGE>
 
   
Withdrawal Plan unless such purchase is equal to at least one year's scheduled
withdrawals or $1,200, whichever is greater. Periodic investments may not be
made into an Investment Account from which the shareholder has elected to make
systematic withdrawals.     
   
  Alternatively, a shareholder whose shares are held within a CMA(R), CBA(R) or
Retirement Account may elect to have shares redeemed on a monthly, bimonthly,
quarterly, semiannual or annual basis through the CMA(R)/CBA(R) Systematic
Redemption Program. The minimum fixed dollar amount redeemable is $50. The
proceeds of systematic redemptions will be posted to the shareholder's account
five business days after the date the shares are redeemed. All redemptions are
made at net asset value. A shareholder may elect to have his or her shares
redeemed on the first, second, third or fourth Monday of each month, in the
case of monthly redemptions, or of every other month, in the case of bimonthly
redemptions. For quarterly, semiannual or annual redemptions, the shareholder
may select the month in which the shares are to be redeemed and may designate
whether the redemption is to be made on the first, second or fourth Monday of
the month. If the Monday selected is not a business day, the redemption will be
processed at net asset value on the next business day. The Systematic
Redemption Program is not available if Fund shares are being purchased within
the account pursuant to the Automatic Investment Program. For more information
on the CMA(R)/CBA(R) Systematic Redemption Program, eligible shareholders
should contact their Merrill Lynch Financial Consultant.     
   
  With respect to redemptions of Class B and Class C shares pursuant to a
systematic withdrawal plan, the maximum number of Class B or Class C shares
that can be redeemed from an account annually shall not exceed 10% of the value
of shares of such class in that account at the time the election to join the
systematic withdrawal plan was made. Any CDSC that otherwise might be due on
such redemption of Class B or Class C shares will be waived. Shares redeemed
pursuant to a systematic withdrawal plan will be redeemed in the same order as
Class B or Class C shares are otherwise redeemed. See "Purchase of Shares--
Deferred Sales Charge Alternatives--Class B and Class C Shares--Contingent
Deferred Sales Charges--Class B Shares" and "--Contingent Deferred Sales
Charges--Class C Shares" in the Prospectus. Where the systematic withdrawal
plan is applied to Class B shares, upon conversion of the last Class B shares
in an account to Class D shares, the systematic withdrawal plan will
automatically be applied thereafter to Class D shares. See "Purchase of
Shares--Deferred Sales Charge Alternatives--Class B and Class C Shares--
Conversion of Class B Shares to Class D Shares" in the Prospectus; if an
investor wishes to change the amount being withdrawn in a systematic withdrawal
plan the investor should contact his or her Financial Consultant.     
 
                                RETIREMENT PLANS
 
  Self-directed individual retirement accounts and other retirement plans are
available from Merrill Lynch. Under these plans, investments may be made in the
Fund and certain of the other mutual funds sponsored by Merrill Lynch as well
as in other securities. Merrill Lynch charges an initial establishment fee and
an annual custodial fee for each account. Information with respect to these
plans is available upon request from Merrill Lynch. The minimum initial
purchase to establish any such plan is $100 and the minimum subsequent purchase
is $1.
 
Retirement Plan
 
  Any Retirement Plan which does not meet the qualifications to purchase Class
A or Class D shares at net asset value may purchase Class B shares with a
waiver of the CDSC upon redemption if the following
 
                                       34
<PAGE>
 
qualifications are met. The CDSC is waived for any Eligible 401(k) Plan
redeeming Class B shares and is also waived for Class B redemptions from a
401(a) plan qualified under the Code, provided that each such plan has the same
or an affiliated sponsoring employer as an Eligible 401(k) Plan purchasing
Class B shares ("Eligible 401(a) Plan"). Other tax qualified retirement plans
within the meaning of Section 401(a) and 403(b) of the Code which are provided
specialized services (e.g., plans whose participants may direct on a daily
basis their plan allocations among a menu of investments) by independent
administration firms contracted through Merrill Lynch may also purchase Class B
shares with a waiver of the CDSC. The CDSC is also waived for any Class B
shares which are purchased by an Eligible 401(k) Plan or Eligible 401(a) Plan
and are rolled over into a Merrill Lynch or Merrill Lynch Trust Company
custodied IRA and held in such account at the time of redemption. The Class B
CDSC is also waived for shares purchased by a Merrill Lynch rollover IRA that
was funded by a rollover from a terminated 401(k) plan managed by the MLAM
Private Portfolio Group and held in such account at the time of redemption. The
minimum initial and subsequent purchase requirements are waived in connection
with all the above-referenced Retirement Plans.
 
                               EXCHANGE PRIVILEGE
   
  U.S. shareholders of each class of shares of a Portfolio of the Fund have an
exchange privilege with other Portfolios of the Fund and with certain other
MLAM-advised mutual funds listed below. Under the Merrill Lynch Select
PricingSM System, Class A shareholders may exchange Class A shares of a
Portfolio for Class A shares of another Portfolio or a second MLAM-advised
mutual fund if the shareholder holds any Class A shares of the other Portfolio
or second fund in his account in which the exchange is made at the time of the
exchange or is otherwise eligible to purchase Class A shares of the second
fund. If the Class A shareholder wants to exchange Class A shares for shares of
the other Portfolio or a second MLAM-advised mutual fund, and the shareholder
does not hold Class A shares of the other Portfolio or second fund in his
account at the time of the exchange and is not otherwise eligible to acquire
Class A shares of the other Portfolio or second fund, the shareholder will
receive Class D shares of the other Portfolio or the second fund as a result of
the exchange. Class D shares also may be exchanged for Class A shares of
another Portfolio or a second MLAM-advised mutual fund at any time as long as,
at the time of the exchange, the shareholder holds Class A shares of the second
fund in the account in which the exchange is made or is otherwise eligible to
purchase Class A shares of the other Portfolio or second fund. Class B, Class C
and Class D of a Portfolio shares will be exchangeable with shares of the same
class of other MLAM-advised mutual funds. For purposes of computing the CDSC
that may be payable upon a disposition of the shares acquired in the exchange,
the holding period for the previously owned shares of the Portfolio is "tacked"
to the holding period of the newly acquired shares of the other Portfolio or
other Fund as more fully described below. Class A, Class B, Class C and Class D
shares also will be exchangeable for shares of certain MLAM-advised money
market funds specifically designated below as available for exchange by holders
of Class A, Class B, Class C or Class D shares. Shares with a net asset value
of at least $100 are required to qualify for the exchange privilege, and any
shares utilized in an exchange must have been held by the shareholder for at
least 15 days. It is contemplated that the exchange privilege may be applicable
to other new mutual funds whose shares may be distributed by the Distributor.
    
  Exchanges of Class A or Class D shares outstanding ("outstanding Class A or
Class D shares") for Class A or Class D shares of another MLAM-advised mutual
fund ("new Class A or Class D shares") are transacted on the basis of relative
net asset value per Class A or Class D share, respectively, plus an amount
equal to the difference, if any, between the sales charge previously paid on
the outstanding Class A or Class D
 
                                       35
<PAGE>
 
shares and the sales charge payable at the time of the exchange on the new
Class A or Class D shares. With respect to outstanding Class A or Class D
shares as to which previous exchanges have taken place, the "sales charge
previously paid" shall include the aggregate of the sales charge paid with
respect to such Class A or Class D shares in the initial purchase and any
subsequent exchange. Class A or Class D shares issued pursuant to dividend
reinvestment are sold on a no-load basis in each of the funds offering Class A
or Class D shares. For purposes of the exchange privilege, Class A and Class D
shares acquired through dividend reinvestment shall be deemed to have been sold
with a sales charge equal to the sales charge previously paid on the Class A or
Class D shares on which the dividend was paid. Based on this formula, Class A
and Class D shares of a Portfolio generally may be exchanged into the Class A
or Class D shares of the other funds or into shares of the Class A and Class D
money market funds with a reduced or without a sales charge.
 
  In addition, each of the funds with Class B and Class C shares outstanding
("outstanding Class B or Class C shares") offers to exchange its Class B or
Class C shares for Class B or Class C shares, respectively, ("new Class B or
Class C shares") of another MLAM-advised mutual fund on the basis of relative
net asset value per Class B or Class C share, without the payment of any CDSC
that might otherwise be due on redemption of the outstanding shares. Class B
shareholders of the fund exercising the exchange privilege will continue to be
subject to the fund's CDSC schedule if such schedule is higher than the CDSC
relating to the new Class B shares acquired through use of the exchange
privilege. In addition, Class B shares of the fund acquired through use of the
exchange privilege will be subject to the higher of the fund's CDSC schedule or
the CDSC relating to the Class B shares of the fund from which the exchange has
been made. For purposes of computing the sales load that may be payable on a
disposition of the new Class B or Class C shares, the holding period for the
outstanding Class B or Class C shares is "tacked" to the holding period of the
new Class B or Class C shares. For example, an investor may exchange Class B
shares of the High Income Portfolio of the Merrill Lynch Corporate Bond Fund,
Inc. ("High Income Portfolio") for those of Merrill Lynch Special Value Fund,
Inc. ("Special Value Fund") after having held the Fund's Class B shares for two
and a half years. The 2% sales load that generally would apply to a redemption
would not apply to the exchange. Two years later the investor may decide to
redeem the Class B shares of Merrill Lynch Special Value Fund and receive cash.
There will be no CDSC due on this redemption, since by "tacking" the two and a
half year holding period of High Income Portfolio Class B shares to the two
year holding period for the Merrill Lynch Special Value Fund Class B shares,
the investor will be deemed to have held the new Class B shares for more than
four years.
 
  Shareholders also may exchange shares of the Fund into shares of a money
market fund advised by the Investment Adviser or its affiliates, but the period
of time that Class B or Class C shares are held in a Class B money market fund
will not count towards satisfaction of the holding period requirement for
purposes of reducing the CDSC or with respect to Class B shares, towards
satisfaction of the conversion period. However, shares of a money market fund
which were acquired as a result of an exchange for Class B or Class C shares of
a fund may, in turn, be exchanged back into Class B or Class C shares of any
fund offering such shares, in which event the holding period for Class B or
Class C shares of that fund will be aggregated with previous holding periods
for purposes of reducing the CDSC. Thus, for example, an investor may exchange
Class B shares of the High Income Portfolio for shares of Merrill Lynch
Institutional Fund ("Institutional Fund") after having held the Class B shares
of the High Income Portfolio for two and a half years and two years later
decide to redeem the shares of Institutional Fund for cash. At the time of this
redemption, the 2% CDSC that would have been due had the Class B shares of the
High Income Portfolio been redeemed for cash rather than exchanged for shares
of Institutional Fund will be payable. If, instead of such redemption
 
                                       36
<PAGE>
 
the shareholder exchanged such shares for Class B shares of a fund which the
shareholder continues to hold for an additional one and a half years, any
subsequent redemption will not incur a CDSC.
 
  To exercise the exchange privilege, shareholders should contact their Merrill
Lynch Financial Consultant who will advise the Fund of the exchange. Before
effecting an exchange, shareholders should obtain a currently effective
prospectus of the fund into which the exchange is to be made. Shareholders of
the Fund, and shareholders of the other funds described above with shares for
which certificates have not been issued, may exercise the exchange privilege by
wire through their securities dealers. The Fund reserves the right to require a
properly completed Exchange Application. This exchange privilege may be
modified or terminated in accordance with the rules of the Securities and
Exchange Commission. The Fund reserves the right to limit the number of times
an investor may exercise the exchange privilege. Certain funds may suspend the
continuous offering of their shares to the general public at any time and may
thereafter resume such offering from time to time. The exchange privilege is
available only to U.S. shareholders in states where the exchange legally may be
made.
 
                                PERFORMANCE DATA
 
  From time to time the Fund may include a Portfolio's average annual total
return and other total return data, as well as yield, in advertisements or
information furnished to present or prospective shareholders. Total return and
yield figures are based on a Portfolio's historical performance and are not
intended to indicate future performance. Average annual total return and yield
are determined separately for Class A, Class B, Class C and Class D shares of
each Portfolio in accordance with formulas specified by the Securities and
Exchange Commission and take into account the maximum applicable sales charge.
 
  Average annual total return quotations for the specified periods are computed
by finding the average annual compounded rates of return (based on net
investment income and any realized and unrealized capital gains or losses on
portfolio investments over such periods) that would equate the initial amount
invested to the redeemable value of such investment at the end of each period.
Average annual total return is computed assuming all dividends and
distributions are reinvested and taking into account all applicable recurring
and nonrecurring expenses, including the maximum sales charge in the case of
Class A and Class D shares and the CDSC that would be applicable to a complete
redemption of the investment at the end of the specified period in the case of
Class B and Class C shares.
 
  The Fund also may quote annual, average annual and annualized total return
and aggregate total return performance data, both as a percentage and as a
dollar amount based on a hypothetical $1,000 investment, for various periods
other than those noted below. Such data will be computed as described above,
except that (1) the rates of return calculated will not be average annual
rates, but rather, actual annual, annualized or aggregate rate of return and
(2) the maximum applicable sales charge will not be included with respect to
annual or annualized rates of return calculations. Aside from the impact on the
performance data calculations of including or excluding the maximum applicable
sales charge, actual annual or annualized total return data generally will be
lower than average annual total return data since the average rates of return
reflect compounding of return; aggregate total return data generally will be
higher than average annual total return data since the aggregate rates of
return reflect compounding over a longer period of time.
 
 
                                       37
<PAGE>
 
  Set forth below is total return and yield information for the Class A, Class
B, Class C and Class D shares of the High Income Portfolio, the Investment
Grade Portfolio and the Intermediate Term Portfolio for the periods indicated.
<TABLE>   
<CAPTION>
                                                                  REDEEMABLE VALUE OF A
                           EXPRESSED AS A PERCENTAGE BASED            HYPOTHETICAL
                              ON A HYPOTHETICAL $1,000       $1,000 INVESTMENT AT THE END OF
                                     INVESTMENT                        THE PERIOD
                          --------------------------------- ---------------------------------
                          INVESTMENT   HIGH    INTERMEDIATE INVESTMENT   HIGH    INTERMEDIATE
                            GRADE     INCOME       TERM       GRADE     INCOME       TERM
         PERIOD           PORTFOLIO  PORTFOLIO  PORTFOLIO   PORTFOLIO  PORTFOLIO  PORTFOLIO
         ------           ---------- --------- ------------ ---------- --------- ------------
                                              AVERAGE ANNUAL TOTAL RETURN
                                     (INCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                       <C>        <C>       <C>          <C>        <C>       <C>
One Year Ended September
 30, 1997
  Class A...............     4.85%     10.00%      7.51%    $1,048.50  $1,100.00  $1,075.10
  Class B...............     4.39%      9.86%      7.13%    $1,043.90  $1,098.60  $1,071.30
  Class C...............     7.23%     12.66%      6.99%    $1,072.30  $1,126.60  $1,069.90
  Class D...............     4.59%      9.72%      7.50%    $1,045.90  $1,097.20  $1,075.00
Five Years Ended
 September 30, 1997
  Class A...............     5.75%     10.53%      6.32%    $1,322.80  $1,649.70  $1,358.80
  Class B...............     5.81%     10.60%      --       $1,326.40  $1,654.80      --
Ten Years Ended
 September 30, 1997
  Class A Shares........     8.86%     11.82%      8.85%    $2,336.10  $3,056.70  $2,334.10
  Class B Shares
   10/21/88 - 9/30/97...     7.95%     11.60%       --      $1,982.60  $2,667.90      --
  Class B Shares
   11/13/92 - 9/30/97...      --        --         6.65%        --        --      $1,368.80
  Class C Shares
   10/21/94 - 9/30/97...     8.63%     12.80%      8.51%    $1,275.70  $1,425.20  $1,271.70
  Class D Shares
   10/21/94 - 9/30/97...     7.77%     11.87%      8.64%    $1,246.40  $1,390.90  $1,276.10
                                                  ANNUAL TOTAL RETURN
                                     (EXCLUDING MAXIMUM APPLICABLE SALES CHARGES)
Year Ended September 30,
 1997
  (Class A).............     9.22%     14.58%      8.59%    $1,092.20  $1,145.80  $1,085.90
  (Class B).............     8.39%     13.86%      8.13%    $1,083.90  $1,138.60  $1,081.30
  (Class C).............     8.23%     13.66%      7.99%    $1,082.30  $1,136,60  $1,079.90
  (Class D).............     8.95%     14.29%      8.58%    $1,089.50  $1,142.90  $1,085.80
1996
  (Class A).............     3.60%     11.95%      4.56%    $1,036.00  $1,119.50  $1,045.60
  (Class B).............     2.81%     11.11%      4.02%    $1,028.10  $1,111.10  $1,040.20
  (Class C).............     2.85%     11.05%      3.99%    $1,028.50  $1,110.50  $1,039.90
  (Class D).............     3.43%     11.82%      4.46%    $1,034.30  $1,118.20  $1,044.60
1995
  (Class A).............    14.93%     13.27%     13.33%    $1,149.30  $1,132.70  $1,133.30
  (Class B).............    14.04%     12.41%     12.73%    $1,140.40  $1,124.10  $1,127.30
  (Class C).............    14.60%+    12.92%+    13.25%+   $1,146.00  $1,129.20  $1,132.50
  (Class D).............    15.22%+    13.37%+    13.65%+   $1,152.20  $1,133.70  $1,136.50
1994
  (Class A).............    (6.03)%     3.42%     (4.25)%   $  939.70  $1,034.20  $  957.50
  (Class B).............    (6.73)%     2.66%     (4.72)%   $  932.70  $1,026.60  $  952.80
1993
  (Class A).............    12.76%     14.35%     11.39%    $1,127.60  $1,143.50  $1,113.90
  (Class B).............    11.91%     13.35%     13.30%++  $1,119.10  $1,133.50  $1,133.00
1992
  (Class A).............    14.30%     25.22%     13.71%    $1,143.00  $1,252.20  $1,137.10
  (Class B).............    13.44%     24.44%       --      $1,134.40  $1,244.40      --
1991
  (Class A).............    16.18%     26.46%     13.97%    $1,161.80  $1,264.60  $1,139.70
  (Class B).............    15.30%     25.32%       --      $1,153.00  $1,253.20      --
1990
  (Class A).............     5.22%     (1.95)%     7.55%    $1,052.20  $  980.50  $1,075.50
  (Class B).............     4.42%     (2.54)%      --      $1,044.20  $  974.60      --
1989
  (Class A).............    11.11%      7.69%      9.79%    $1,111.10  $1,076.90  $1,097.90
  (Class B).............     9.44%*     6.08%*      --      $1,094.40  $1,060.80       --
1988....................    13.75%     10.82%     12.25%    $1,137.50  $1,108.20  $1,122.50
1987....................    (1.14)%     8.82%     (0.72)%   $  988.60  $1,088.20  $  992.80
1986....................    17.66%     14.30%     18.09%    $1,176.60  $1,143.00  $1,180.90
1985....................    22.50%     20.60%     20.66%    $1,225.00  $1,206.00  $1,206.60
1984....................     8.60%      5.88%      8.20%    $1,086.00  $1,058.80  $1,082.00
1983....................    17.38%     28.58%     15.95%    $1,173.80  $1,285.80  $1,159.50
1982....................    27.75%     22.43%     27.12%    $1,277.50  $1,224.30  $1,271.20
1981....................     3.44%     (3.00)%     4.33%    $1,034.40  $  970.00  $1,043.30
1980....................     --        (1.04)%     --           --     $  989.60      --
</TABLE>    
                                                  
                                               (see footnotes on next page)     
 
                                       38
<PAGE>
 
- --------
*Commencement of operations October 21, 1988.
   
+ Commencement of operations October 21, 1994.     
   
++ Commencement of operations November 13, 1992.     
 
  Set forth below is total return and yield information for the Class A, Class
B, Class C and Class D shares of the High Income Portfolio, the Investment
Grade Portfolio and the Intermediate Term Portfolio for the periods indicated.
 
<TABLE>   
<CAPTION>
                                                                 REDEEMABLE VALUE OF A
                          EXPRESSED AS A PERCENTAGE BASED            HYPOTHETICAL
                             ON A HYPOTHETICAL $1,000       $1,000 INVESTMENT AT THE END OF
                                    INVESTMENT                        THE PERIOD
                         --------------------------------- ---------------------------------
                         INVESTMENT   HIGH    INTERMEDIATE INVESTMENT   HIGH    INTERMEDIATE
                           GRADE     INCOME       TERM       GRADE     INCOME       TERM
         PERIOD          PORTFOLIO  PORTFOLIO  PORTFOLIO   PORTFOLIO  PORTFOLIO  PORTFOLIO
         ------          ---------- --------- ------------ ---------- --------- ------------
                                               AGGREGATE TOTAL RETURN
                                    (INCLUDING MAXIMUM APPLICABLE SALES CHARGES)
<S>                      <C>        <C>       <C>          <C>        <C>       <C>
Commencement of
 operations**
 to September 30, 1997
  Class A...............  460.71%    689.11%    449.38%    $5,607.10  $7,891.10  $5,493.80
  Class B...............   98.26%    166.79%     36.88%    $1,982.60  $2,667.90  $1,368.80
  Class C...............   27.57%     42.52%     27.17%    $1,275.70  $1,425.20  $1,271.70
  Class D...............   24.64%     39.09%     27.61%    $1,246.40  $1,390.90  $1,276.70
                                     YIELD
<CAPTION>
                         INVESTMENT       HIGH    INTERMEDIATE
                            GRADE        INCOME       TERM
                          PORTFOLIO    PORTFOLIO    PORTFOLIO
                         -----------   ------------------------
<S>                      <C>           <C>        <C>           
30 Days Ended September
 30, 1997
  Class A...............    6.06%      8.16%      5.95%
  Class B...............    5.55%      7.73%      5.49%
  Class C...............    5.50%      7.68%      5.60%
  Class D...............    5.82%      7.92%      5.84%
</TABLE>    
- --------
** Commencement of operations for Investment Grade Portfolio Class A shares and
   Intermediate Term Portfolio was October 31, 1980. Commencement of operations
   for Class A shares of High Income Portfolio was November 10, 1978.
   Commencement of operations for Class B shares of Investment Grade Portfolio
   and High Income Portfolio was October 21, 1988. Commencement of operations
   for Class B shares of Intermediate Term Portfolio was November 13, 1992.
   Commencement of operations for Class C shares and Class D shares of
   Investment Grade Portfolio, High Income Portfolio and Intermediate Term
   Portfolio was October 21, 1994.
 
 
  In order to reflect the reduced sales charges applicable to certain
investors, as described under "Purchase of Shares," the total return data
quoted by the Fund in advertisements directed to such investors whose purchases
are subject to reduced sales load, in the case of Class A and Class D shares,
or waiver of the contingent deferred sales charge in the case of Class B and
Class C shares, may take into account the reduced, and not the maximum, sales
charge or may not take into account the contingent deferred sales charge and
therefore may reflect greater total return since, due to the reduced sales
charge, a lower amount of expenses is deducted.
 
  On occasion, the Fund may compare its performance to that of the Standard &
Poor's 500 Index, the Value Line Composite Index, the Dow Jones Industrial
Average, or performance data contained in publications such as Lipper
Analytical Services, Inc., Morningstar Publications, Inc., Money Magazine, U.S.
News & World Report, Business Week, CDA Investment Technology, Inc., Forbes
Magazine or Fortune Magazine. As with other performance data, performance
comparisons should not be considered indicative of the Fund's relative
performance for any future period.
 
                                       39
<PAGE>
 
                             ADDITIONAL INFORMATION
 
ORGANIZATION OF THE FUND
   
  The authorized capital stock of the Fund consists of three billion six
hundred fifty million (3,650,000,000) shares of Common Stock, having a par
value $0.10 per share. The shares of Common Stock are divided as follows: High
Income Portfolio Series Common Stock which is divided into four classes
designated "Class A Common Stock," "Class B Common Stock," "Class C Common
Stock" and "Class D Common Stock" which consist of 500,000,000 shares,
1,500,000,000 shares, 200,000,000 shares and 500,000,000 shares, respectively,
High Quality Portfolio Series Common Stock (which does business under the name
"Investment Grade Portfolio") which is divided into four classes designated
"Class A Common Stock," "Class B Common Stock," "Class C Common Stock" and
"Class D Common Stock" which consists of 250,000,000, 250,000,000, 100,000,000
and 100,000,000, respectively, and the Intermediate Term Portfolio Series
Common Stock, which is divided into four classes designated "Class A Common
Stock," "Class B Common Stock," "Class C Common Stock" and "Class D Common
Stock" which consists of 100,000,000, 50,000,000, 50,000,000 and 50,000,000
shares, respectively. Each of the Fund's shares has equal dividend,
distribution, liquidation and voting rights, except that only shares of the
respective Portfolios are entitled to vote on matters concerning only that
Portfolio and Class B, Class C and Class D Shares bear certain account
maintenance expenses and expenses related to the distribution of such shares
and have exclusive voting rights with respect to matters relating to such
account maintenance and distribution expenditures. Each issued and outstanding
share is entitled to one vote and to participate equally in dividends and
distributions declared by the respective Portfolio and class and in net assets
of such Portfolio upon liquidation or dissolution remaining after satisfaction
of outstanding liabilities. The shares of each Portfolio, when issued, will be
fully paid and nonassessable, have no preference, preemptive, conversion,
exchange or similar rights, and will be freely transferable. Stock certificates
will be issued by the Transfer Agent only on specific request. Certificates for
fractional shares are not issued in any case. Holders of shares of any
Portfolio are entitled to redeem their shares as set forth under "Redemption of
Shares."     
 
  The Investment Adviser provided the initial capital for the Fund by
purchasing 10,417 shares for $100,003. Such shares were acquired for investment
and can only be disposed of by redemption. The organizational expenses of the
Fund have been fully amortized.
 
  Under a separate agreement Merrill Lynch has granted the Fund the right to
use the "Merrill Lynch" name and has reserved the right to withdraw its consent
to the use of such name by the Fund at any time, or to grant the use of such
name to any other company, and the Fund has granted Merrill Lynch, under
certain conditions, the use of any other name it might assume in the future,
with respect to any corporation organized by Merrill Lynch.
 
                                       40
<PAGE>
 
COMPUTATION OF OFFERING PRICE PER SHARE
   
  The offering price for Class A, Class B, Class C and Class D shares of the
High Income, Investment Grade and Intermediate Term Portfolios, based on the
value of each Portfolio's net assets and number of shares outstanding as of
September 30, 1997, is calculated as set forth below.     
 
HIGH INCOME PORTFOLIO:
 
<TABLE>   
<CAPTION>
                             CLASS A        CLASS B       CLASS C      CLASS D
                          -------------- -------------- ------------ ------------
<S>                       <C>            <C>            <C>          <C>
Net Assets..............  $1,044,799,502 $5,495,487,714 $638,626,416 $496,835,765
                          ============== ============== ============ ============
Number of Shares Out-
 standing...............     125,960,942    662,339,180   76,919,450   59,856,765
                          ============== ============== ============ ============
Net Asset Value Per
 Share (net assets
 divided by number of
 shares outstanding)....  $         8.29 $         8.30 $       8.30 $       8.30
Sales Charge* (for Class
 A and Class D shares:
 4.00% of offering price
 (4.17% of net asset
 value per share))......             .35             **           **          .35
                          -------------- -------------- ------------ ------------
Offering Price..........  $         8.64 $         8.30 $       8.30 $       8.65
                          ============== ============== ============ ============
</TABLE>    
- --------
 * Rounded to the nearest one-hundredth percent, assumes maximum sales charge
   is applicable.
** Class B and Class C shares are not subject to an initial sales charge but
   may be subject to a CDSC on redemption of shares. See "Purchase of Shares--
   Deferred Sales Charge Alternatives--Class B and Class C Shares" in the
   Prospectus and "Redemption of Shares--Deferred Sales Charge--Class B and
   Class C Shares" herein.
 
INVESTMENT GRADE PORTFOLIO:
 
<TABLE>   
<CAPTION>
                                 CLASS A      CLASS B      CLASS C     CLASS D
                               ------------ ------------ ----------- -----------
<S>                            <C>          <C>          <C>         <C>
Net Assets...................  $519,708,420 $577,989,206 $49,918,132 $77,397,668
                               ============ ============ =========== ===========
Number of Shares Outstanding.    45,586,778   50,698,388   4,376,961   6,784,928
                               ============ ============ =========== ===========
Net Asset Value Per Share
 (net assets divided by
 number of shares
 outstanding)................  $      11.40 $      11.40 $     11.40 $     11.41
Sales Charge* (for Class A
 and Class D shares: 4.00% of
 offering price (4.17% of net
 asset value per share)).....           .48           **          **         .48
                               ------------ ------------ ----------- -----------
Offering Price...............  $      11.88 $      11.40 $     11.40 $     11.89
                               ============ ============ =========== ===========
</TABLE>    
- --------
 * Rounded to the nearest one-hundredth percent, assumes maximum sales charge
   is applicable.
** Class B and Class C shares are not subject to an initial sales charge but
   may be subject to a CDSC on redemption of shares. See "Purchase of Shares--
   Deferred Sales Charge Alternatives--Class B and Class C Shares" in the
   Prospectus and "Redemption of Shares--Deferred Sales Charge--Class B and
   Class C Shares" herein.
 
 
                                       41
<PAGE>
 
   
INTERMEDIATE TERM PORTFOLIO:     
 
<TABLE>   
<CAPTION>
                                  CLASS A      CLASS B     CLASS C     CLASS D
                                ------------ ------------ ---------- -----------
<S>                             <C>          <C>          <C>        <C>
Net Assets....................  $179,115,016 $148,147,805 $1,570,857 $64,335,399
                                ============ ============ ========== ===========
Number of Shares Outstanding..    15,582,572   12,887,867    136,676   5,596,422
                                ============ ============ ========== ===========
Net Asset Value Per Share (net
 assets divided by number of
 shares outstanding)..........  $      11.49 $      11.50 $    11.49 $     11.50
Sales Charge* (for Class A and
 Class D shares: 1.00% of
 offering price (1.01% of net
 asset value per share))......           .12           **         **         .12
                                ------------ ------------ ---------- -----------
Offering Price................  $      11.61 $      11.50 $    11.49 $     11.62
                                ============ ============ ========== ===========
</TABLE>    
- --------
 * Rounded to the nearest one-hundredth percent, assumes maximum sales charge
   is applicable.
** Class B and Class C shares are not subject to an initial sales charge but
   may be subject to a CDSC on redemption of shares. See "Purchase of Shares--
   Deferred Sales Charge Alternatives--Class B and Class C Shares" in the
   Prospectus and "Redemption of Shares--Deferred Sales Charge--Class B and
   Class C Shares" herein.
 
INDEPENDENT AUDITORS
 
  Deloitte & Touche LLP, 117 Campus Drive, Princeton, New Jersey 08540 has
been selected as the independent auditors of the Fund. The independent
auditors are responsible for auditing the annual financial statements of the
Fund.
 
CUSTODIAN
 
  State Street Bank and Trust Company, One Heritage Drive P2N, North Quincy,
Massachusetts 02171, acts as the Custodian of the Fund's assets. Under its
contract with the Fund, the Custodian is authorized to establish separate
accounts in foreign currencies and to cause foreign securities owned by the
Fund to be held in its offices outside the United States and with certain
foreign banks and securities depositories. The Custodian is responsible for
safeguarding and controlling the Fund's cash and securities, handling the
receipt and delivery of securities and collecting interest and dividends on
the Fund's investments.
 
TRANSFER AGENT
 
  Merrill Lynch Financial Data Services, Inc. 4800 Deer Lake Drive East,
Jacksonville, Florida 32246-6484, acts as the Fund's Transfer Agent. The
Transfer Agent is responsible for the issuance, transfer and redemption of
shares and the opening, maintenance and servicing of shareholder accounts. See
"Management of the Fund--Transfer Agency Services" in the Prospectus.
 
LEGAL COUNSEL
 
  Rogers & Wells, New York, New York is counsel for the Fund.
 
REPORTS TO SHAREHOLDERS
 
  The fiscal year of the Fund ends on September 30 of each year. The Fund
sends to its shareholders at least quarterly reports showing the Fund's
portfolio and other information. An annual report, containing financial
statements audited by independent auditors, is sent to shareholders each year.
After the end of each year shareholders will receive federal income tax
information regarding dividends and capital gains distributions.
 
                                      42
<PAGE>
 
                                                                        APPENDIX
 
INTEREST RATE FUTURES, OPTIONS THEREON AND OPTIONS ON DEBT SECURITIES
 
  The Fund may trade options on debt securities, purchase and sell interest
rate, bond and bond index futures contracts ("futures contracts") and purchase
and write call and put options on futures contracts. At the date hereof,
futures contracts (and options thereon) can be purchased and sold with respect
to U.S. Treasury notes and GNMA certificates on the Chicago Board of Trade and
with respect to U.S. Treasury bills on the International Monetary Market at the
Chicago Mercantile Exchange. Options directly on debt securities are currently
traded on the Chicago Board Options Exchange and the American Stock Exchange.
 
  Futures Contracts. A futures contract creates a binding obligation on the
purchaser (the "long") to accept delivery, and the seller (the "short") to make
delivery, of the face amount of the security underlying the futures contract in
a stated delivery month, at a price fixed in the contract or to make a cash
settlement in lieu of actual delivery. A majority of transactions in futures
contracts, however, do not result in actual delivery of the underlying
security, but are settled through liquidation--i.e., by entering into an
offsetting transaction. Futures contracts are traded only on commodity
exchanges--known as "contract markets"--approved for such trading by the
Commodity Futures Trading Commission ("CFTC"). Transactions in futures
contracts must be executed through a futures commission merchant ("FCM"), or
brokerage firm, which is a member of the relevant contract market.
 
  The purchase or sale of a futures contract differs from the purchase or sale
of a security in that the total cash value reflected by the futures contract is
not paid. Instead, an amount of cash or securities acceptable to the Fund's FCM
and the relevant contract market, which varies, but may be 5% or less of the
contract amount, must be deposited with the FCM. This amount is known as
"initial margin," and represents a "good faith" deposit assuring the
performance of both the purchaser and the seller under the futures contract.
Subsequent payments to and from the FCM, known as "maintenance" or "variation"
margin, are required to be made on a daily basis as the price of the futures
contract fluctuates, making the long or short positions in the futures contract
more or less valuable, a process known as "marking to the market." Prior to the
settlement date of the futures contract, the position may be closed out by
taking an opposite position which will operate to terminate the position in the
futures contract. A final determination of variation margin is then made,
additional cash is required to be paid to or released by the FCM, and the Fund
realizes a loss or gain. In addition, a commission is paid on each completed
purchase and sale transaction.
 
  The Fund will deal only in standardized contracts on recognized exchanges.
The clearing members of an exchange's clearing corporation guarantee the
performance of their futures contracts through the clearing corporation, a
nonprofit organization managed by the exchange membership which is also
responsible for handling daily accounting of deposits or withdrawals of margin.
 
  Options on Futures Contracts. An option on a futures contract gives the
purchaser (known as the "holder") the right, but not the obligation, to enter
into a long position in the underlying futures contract (i.e., purchase the
futures contract), in the case of a "call" option, or to enter into a short
position (i.e., sell the futures contract), in the case of a "put" option, at a
fixed price (the "exercise" or "strike" price) up to a stated expiration date.
The holder pays a non-refundable purchase price for the option, known as the
"premium." The maximum amount of risk the purchaser of the option assumes is
equal to the premium, the
 
                                       43
<PAGE>
 
transaction costs and the unrealized profits, if any, although this entire
amount may be lost. Upon exercise of the option by the holder, the contract
market clearing corporation establishes a corresponding short position for the
seller, or "writer" of the option in the case of a call option, or a
corresponding long position in the case of a put option, at the strike price.
In the event that an option is exercised, the holder will be subject to all the
risks associated with the trading of futures contracts. An option becomes
worthless when it expires.
   
  The writer of an option on a futures contract is required to deposit initial
and variation margin pursuant to requirements similar to those applicable to
futures contracts. Premiums received from the holder of the option may be
included in initial margin. The writing of an option on a futures contract
involves risks similar to those relating to futures contracts, which are
described on page 43.     
 
  A position in an option may be terminated by the purchaser or seller prior to
its expiration by effecting a closing purchase or sale transaction, which
requires the purchase or writing of an option of the same series (i.e., the
same exercise price and expiration date) as the option previously written or
purchased. The premium received from the holder on the closing transaction may
be more or less than the premium paid for the option, resulting in a gain or
loss on the transactions.
 
  Exercise prices of options are set at specified intervals in relation to the
price of the underlying futures contract by the exchange on which they are
traded. Exercise prices are initially established when a new expiration cycle
commences and additional exercise prices may subsequently be introduced as the
futures contract price fluctuates. The expiration of an option is generally
based on the expiration of the underlying futures contract.
 
  The holder of an option exercises it by notifying his broker of his intention
to exercise. The broker tenders the exercise notice to the clearing house of
the applicable exchange which assigns the notice on a random basis to a broker
with a customer who has written and outstanding an option of the same series.
That broker then assigns the exercise notice to such customer, generally on a
random basis, and the customer is then obligated to enter into the underlying
futures contract upon exercise. At that time, the contract market clearing
house establishes appropriate long and short futures positions for the holder
and writer. A corresponding short position for the writer would be established
in the case of a call option, or a corresponding long position would be
established in the case of a put option. The parties will then be subject to
initial and variation margin requirements with respect to the underlying
futures contract. By interposing itself between options writers and purchasers,
the clearing house in effect guarantees the performance of the other side to
each option purchased or sold.
 
  Options on Debt Securities. An option on a U.S. Government security gives the
holder the right, but not the obligation, to purchase the underlying security,
in the case of a call option, or to sell the underlying security, in the case
of a put option, at the specified strike price up to a stated expiration date.
The holder pays a non-refundable premium upon purchasing the option. The
maximum amount of risk assumed by the holder is equal to the premium,
transaction costs and unrealized profits, if any, although this entire amount
may be lost. Upon exercise of the option, the holder purchases or sells the
underlying security at the strike price. Options on debt instruments to be
traded by the Fund are traded on national securities exchanges regulated by the
Securities and Exchange Commission. The Options Clearing Corporation is
interposed between the clearing members which are the parties to each such
option, thereby assuring the performance of the parties.
 
                                       44
<PAGE>
 
  If a liquid market exists, a position in an option may be terminated by the
purchaser or seller prior to expiration by entering into an offsetting purchase
or sale transaction in an option of the same series (i.e., the same exercise
price and expiration date) as the option previously purchased or written. The
premium paid or received by the trader on the closing transaction may be more
or less than the premium paid or received for the option, resulting in a gain
or loss on the transaction. If an option is not exercised, it expires worthless
to the holder.
 
  Exercise prices of options are set at specified intervals in relation to the
price of the underlying security by the exchange on which they are traded.
Exercise prices are initially established when a new expiration cycle commences
and additional exercise prices may subsequently be introduced as the price of
the security fluctuates.
 
  The holder of an option exercises it by notifying his broker of his intention
to exercise. The broker tenders the exercise notice to the clearing house,
which assigns the notice on a random basis to a broker with a customer who has
written and outstanding an option of the same series. That broker then assigns
the exercise notice to its customer, generally on a random basis. As a call or
put writer, the customer is obligated to sell or purchase the underlying
security.
 
                                       45
<PAGE>
 
INDEPENDENT AUDITORS' REPORT
 
The Board of Directors and Shareholders,
Merrill Lynch Corporate Bond Fund, Inc.:
   
We have audited the accompanying statement of assets and liabilities, including
the schedule of investments, of the High Income Portfolio of Merrill Lynch
Corporate Bond Fund, Inc. as of September 30, 1997, the related statements of
operations for the year then ended, and changes in net assets for each of the
years in the two-year period then ended, and the financial highlights for each
of the years in the five-year period then ended. These financial statements and
the financial highlights are the responsibility of the Fund's management. Our
responsibility is to express an opinion on these financial statements and the
financial highlights based on our audits.     
   
We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and the financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned at
September 30, 1997 by correspondence with the custodian and brokers. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.     
   
In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of the High Income
Portfolio of Merrill Lynch Corporate Bond Fund, Inc. as of September 30, 1997,
the results of its operations, the changes in its net assets, and the financial
highlights for the respective stated periods in conformity with generally
accepted accounting principles.     
 
Deloitte & Touche LLP
Princeton, New Jersey
   
November 18, 1997     
 
                                       46
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Airlines--1.2%                                  Piedmont Aviation, Inc.:
                    B+     B1    $ 1,304,000        Series 88J, 10.05% due 5/13/2005    $    1,181,685    $    1,408,529
                    B+     B1      1,116,000        Series 88J, 10.10% due 5/13/2007           999,021         1,226,462
                    B+     B1      3,767,000        Series 88J, 10.10% due 5/13/2009         3,327,542         4,164,004
                    B+     B1      2,710,000        Series 88J, 10.15% due 5/13/2011         2,366,806         3,045,444
                    B+     B1      2,226,000        Series 88K, 10% due 5/13/2004            2,026,506         2,384,647
                    B+     B1      2,666,000        Series 88K, 10.10% due 5/13/2008         2,374,020         2,932,093
                    B+     B1      2,550,000        Series 88K, 10.15% due 5/13/2010         2,251,293         2,841,491
                    B+     B1      1,985,000        Series E, 10.30% due 3/28/2007           1,855,291         2,205,543
                    B+     B1      1,950,000        Series F, 10.35% due 3/28/2011           1,999,719         2,171,052
                    B+     B1      1,500,000        Series H, 10% due 11/08/2012             1,493,250         1,632,517
                                                USAir Inc.:
                    CCC+   B3     25,000,000        9.625% due 2/01/2001                    20,109,906        26,062,500
                    B+     B1     21,000,000        10.375% due 3/01/2013                   20,768,125        23,528,295
                    B+     B1      4,726,090        Series 89A1, 9.33% due 1/01/2006++       4,470,742         4,888,526
                    B+     B1      1,432,000        Series A, 10.70% due 1/15/2007           1,525,137         1,624,890
                    B+     B1      1,815,000        Series C, 10.70% due 1/15/2007           1,933,048         2,059,480
                    B+     B1      1,107,000        Series E, 10.70% due 1/15/2007           1,159,472         1,256,113
                    B+     B1      1,092,000        Series F, 10.70% due 1/01/2003             984,165         1,200,894
                    B+     B1      1,092,000        Series G, 10.70% due 1/01/2003             984,165         1,200,894
                    B+     B1      1,092,000        Series H, 10.70% due 1/01/2003             984,165         1,200,894
                    B+     B1      1,092,000        Series I, 10.70% due 1/01/2003             984,165         1,200,894
                                                                                        --------------    --------------
                                                                                            73,778,223        88,235,162

Automotive--1.0%    B      B3     10,000,000    Collins & Aikman Corp., 11.50%
                                                    due 4/15/2006                           10,000,000        11,437,500
                    B+     B1     21,875,000    Exide Corp., 10.75% due 12/15/2002          22,358,281        23,296,875
                    B+     B2     42,500,000    Venture Holdings Trust, 9.50%
                                                    due 7/01/2005 (j)                       40,988,260        41,968,750
                                                                                        --------------    --------------
                                                                                            73,346,541        76,703,125

Broadcasting--      B-     Ba2    19,240,000    Argyle Television Inc., 9.75% due
Radio &                                             11/01/2005                              19,003,950        20,923,500
Television--2.1%    B-     B2     17,500,000    EZ Communications, Inc., 9.75% due
                                                    12/01/2005                              17,361,575        19,293,750
                    B-     B3     35,000,000    SFX Broadcasting Inc., 10.75% due
                                                    5/15/2006                               34,918,750        38,237,500
                                                Sinclair Broadcasting Group Inc.:
                    B      B2     15,000,000        10% due 12/15/2003                      15,036,250        15,825,000
                    B      B2     50,000,000        10% due 9/30/2005                       50,343,269        52,750,000
                    B      B2      9,700,000        9% due 7/15/2007                         9,627,669         9,675,750
                                                                                        --------------    --------------
                                                                                           146,291,463       156,705,500

Building            BB     B1     15,000,000    Cemex S.A., 12.75% due 7/15/2006 (j)        15,000,000        18,187,500
Materials--1.0%                                 Nortek Inc.:
                    B-     B3     20,550,000        9.875% due 3/01/2004                    20,362,365        21,089,438
                    B+     B1      9,000,000        9.25% due 3/15/2007                      8,947,980         9,180,000
                    BB+    Ba1    29,084,000    US Gypsum Corp., 8.75% due 3/01/2017        25,890,006        29,920,165
                                                                                        --------------    --------------
                                                                                            70,200,351        78,377,103
</TABLE>

                                      47
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Cable--                                         American Telecasting, Inc. (a):
Domestic--7.2%      CCC+   Caa   $48,190,545        18.79% due 6/15/2004                $   31,646,184    $   18,071,454
                    CCC+   Caa     9,430,000        26.322% due 8/15/2005                    3,209,009         3,394,800
                    NR*    NR*    20,000,000    CCA Industries, Inc., 13% due
                                                    12/31/1999++++                          16,463,336        20,272,935
                    CCC+   Caa    10,500,000    CS Wireless Systems Inc., 12.041%
                                                    due 3/01/2001 (a)                        6,885,078         2,861,250
                                                Cablevision System Corp.:
                    BB-    B1     13,750,000        9.875% due 5/15/2006                    13,718,750        14,884,375
                    BB-    B1      5,000,000        10.50% due 5/15/2016                     4,900,000         5,681,250
                                                Century Communications Corporation:
                    BB-    Ba3    44,500,000        9.75% due 2/15/2002                     44,895,938        47,003,125
                    BB-    Ba3    42,000,000        9.50% due 3/01/2005                     41,400,313        44,021,250
                                                Comcast Corporation:
                    BB+    Ba3     5,000,000        9.125% due 10/15/2006                    5,112,500         5,362,500
                    BB+    Ba3    30,000,000        9.50% due 1/15/2008                     29,468,813        32,400,000
                    B-     B2     70,000,000    Echostar Communications Corp.,
                                                    11.712% due 6/01/2004 (a)(g)            57,924,669        63,350,000
                    B-     Caa    20,000,000    Echostar DBS Corp., 12.50% due
                                                    7/01/2002 (j)                           20,000,000        22,150,000
                    B      B2     31,000,000    Intermedia Capital Partners L.P.,
                                                    11.25% due 8/01/2006                    31,002,500        34,565,000
                                                Lenfest Communications, Inc.:
                    BB+    Ba3    50,000,000        8.375% due 11/01/2005                   47,987,450        50,312,500
                    BB-    B2     40,000,000        10.50% due 6/15/2006                    40,444,200        44,150,000
                    B      B1     50,000,000    Olympus Communications L.P.,
                                                    10.625% due 11/15/2006                  50,282,500        54,437,500
                    CCC+   Caa    25,000,000    People's Choice T.V. Corporation,
                                                    15.21% due 6/01/2004 (a)                16,168,415         9,250,000
                    BB+    Ba3    40,000,000    TCI Communications Inc., 9.65% due
                                                    3/31/2027                               40,258,360        44,361,200
                    B-     B3     40,000,000    TCI Satellite Entertainment, Inc.,
                                                    12.15% due 2/15/2007 (a)                24,001,842        26,200,000
                    B-     B3     50,338,000    Wireless One Inc., 13.50% due
                                                    8/01/2006 (a)(c)                        30,495,169        12,584,500
                                                                                        --------------    --------------
                                                                                           556,265,026       555,313,639

Cable--             NR*    NR*    79,117,000    Australis Media Ltd., 13.81% due
International--                                     5/15/2003 (a)(d)                        55,740,658        66,458,280
6.6%                B-     B2     10,000,000    Azteca Holdings S.A., 11% due
                                                    6/15/2002 (j)                            9,962,200        10,575,000
                    BB-    Baa3   59,000,000    Bell Cablemedia PLC, 11.86% due
                                                    9/15/2005 (a)                           41,968,542        51,256,250
                    B-     B2     55,000,000    Comcast UK Cable Partners Ltd.,
                                                    11.23% due 11/15/2007 (a)               39,047,129        43,312,500
                                                Diamond Cable Communications PLC (a):
                    B-     B3     15,000,000        11.366% due 12/15/2005                  10,673,390        11,259,375
                    B-     B3     25,000,000        10.87% due 2/15/2007                    15,680,873        16,375,000
                                                NTL Inc.:
                    B      B3     25,000,000        10% due 2/15/2007                       25,015,625        26,250,000
                    B-     B3     80,000,000        Series B, 11.701% due 2/01/2006 (a)     54,361,484        60,000,000
                    BB+    Ba3    12,500,000    Rogers Cablesystems Ltd., 10% due
                                                    3/15/2005                               12,769,375        13,734,375
                    BB-    B2      2,000,000    Rogers Communications, Inc., 9.125%
                                                    due 1/15/2006                            1,897,500         2,047,500
                    B+     B1     75,000,000    TeleWest Communications PLC, 11.02%
                                                    due 10/01/2007 (a)                      54,312,926        56,343,750
                    B-     B2     45,000,000    UIH Australia/Pacific Inc., Series B,
                                                    14% due 5/15/2006 (a)                   27,607,851        32,343,750
</TABLE>

                                      48
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Cable--                                         United International Holdings,
International--                                 Inc. (a):
(concluded)         B-     B3    $ 5,000,000        12.18% due 11/15/1999               $    3,831,962    $    4,087,500
                    B-     B3     19,800,000        13.973% due 11/15/1999                  14,915,280        16,137,000
                    B-     B3     50,000,000        13.99% due 11/15/1999 (f)               37,512,035        40,875,000
                    BBB-   Ba3    11,250,000    Videotron Groupe L'TEE, 10.25%
                                                    due 10/15/2002                          11,322,500        11,910,938
                    B+     Baa3   50,000,000    Videotron Holdings PLC, 12.08%
                                                    due 7/01/2004 (a)                       39,279,465        46,750,000
                                                                                        --------------    --------------
                                                                                           455,898,795       509,716,218

Capital Goods--     BB-    B1     21,450,000    Essex Group Inc., 10% due 5/01/2003         21,546,500        22,629,750
0.9%                                            International Wire Group, Inc.:
                    B-     B3     25,000,000        11.75% due 6/01/2005                    24,986,250        27,500,000
                    B-     B3     15,000,000        11.75% due 6/01/2005 (j)                16,312,500        16,462,500
                                                                                        --------------    --------------
                                                                                            62,845,250        66,592,250

Chemicals--         BB-    Ba3    11,000,000    Agriculture Minerals & Chemicals
0.6%                                                Company, L.P., 10.75% due 9/30/2003     11,060,000        11,941,875
                                                ISP Holdings Inc.:
                    BB-    Ba3    19,502,000        9.75% due 2/15/2002                     19,502,000        20,867,140
                    BB-    Ba3    10,000,000        9% due 10/15/2003                        9,972,100        10,500,000
                                                                                        --------------    --------------
                                                                                            40,534,100        43,309,015

Computer            BB-    Ba1    38,500,000    Advanced Micro Devices, Inc., 11%
Services--                                          due 8/01/2003                           38,938,750        43,408,750
Electronics--                                   ComputerVision Corp.:
1.5%                B-     B3     17,000,000        11.375% due 8/15/1999                   16,438,750        12,920,000
                    B+     B2     12,500,000        8% due 12/01/2009                        6,802,473         7,093,750
                    CCC    B3     40,500,000    Dictaphone Corp., 11.75% due 8/01/2005      40,114,375        34,020,000
                    B+     B3     15,000,000    Jordan Telecom Products, 9.875% due
                                                    8/01/2007 (j)                           14,882,460        15,487,500
                                                                                        --------------    --------------
                                                                                           117,176,808       112,930,000

Conglomerates--     NR*    NR*     7,279,000    MacAndrews & Forbes Holdings, Inc.,
1.0%                                                13% due 3/01/1999                        6,779,200         7,342,691
                    B+     B3     26,000,000    Sequa Corp., 9.375% due 12/15/2003          25,146,563        27,105,000
                    BB-    NR*    45,000,000    Voto-Votorantim S.A., 8.50% due
                                                    6/27/2005 (j)                           44,657,900        44,662,500
                                                                                        --------------    --------------
                                                                                            76,583,663        79,110,191

Consumer            B      B3     90,000,000    Coleman Escrow Corp., 11.621% due
Products--                                          5/15/2001 (a)(j)                        59,799,783        61,650,000
2.6%                B+     Ba3    15,000,000    Coty Inc., 10.25% due 5/01/2005             15,000,000        16,162,500
                    B+     B1     45,880,000    International Semi-Tech Microelectronics,
                                                    Inc., 12.51% due 8/15/2003 (a)          31,498,207        28,789,700
                                                Revlon Consumer Products Corp.:
                    B      B2      3,500,000        9.50% due 6/01/1999                      3,213,774         3,605,000
                    B      B2     27,000,000        9.375% due 4/01/2001                    25,002,666        27,978,750
                    B-     B3      9,500,000        10.50% due 2/15/2003                     8,795,000        10,141,250
                    B+     B1      9,940,000    Samsonite Corporation, 11.125% due
                                                    7/15/2005                                9,596,733        11,431,000
                    B+     B1     33,550,000    Sealy Corp., 10.25% due 5/01/2003           33,915,500        35,479,125
                                                                                        --------------    --------------
                                                                                           186,821,663       195,237,325
</TABLE>

                                      49
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>  <C>             <S>                                     <C>               <C>
Convertible         NR*    B3   $  6,195,000    Builders Transport, Inc., 8%
Bonds**--0.2%                                       due 8/15/2005 (3)                   $    3,614,250    $    4,026,750
                    BBB+   Ba1     6,375,000    Quantum Health Resources Inc.,
                                                    4.75% due 10/01/2000 (2)                 5,956,562         5,992,500
                    AAA    Caa     3,420,000    UNC, Inc., 7.50% due 3/31/2006 (1)           2,013,869         3,428,550
                                                                                        --------------    --------------
                                                                                            11,584,681        13,447,800

Diversified--0.1%   B-     B3     10,000,000    Foamex Capital Corp., 9.875%
                                                    due 6/15/2007 (j)                       10,000,000        10,375,000

Energy--7.5%        BB-    Ba3     5,400,000    Chesapeake Energy Corporation, 9.125%
                                                    due 4/15/2006                            5,386,850         5,535,000
                    B+     B2     50,000,000    Clark R&M Holdings, Inc., 10.997%
                                                    due 2/15/2000 (a)                       38,779,932        39,562,500
                    B+     B3      9,000,000    Clark USA Inc., Series B, 10.875%
                                                    due 12/01/2005                           9,000,000         9,787,500
                    BBB-   Ba3    17,500,000    Compania Naviera Perez Companc
                                                    S.A.C.F.I.M.F.A., 9% due
                                                    1/30/2004 (j)                           17,462,500        18,484,375
                    B      B2     20,000,000    Forcenergy, Inc., 8.50% due 2/15/2007       19,740,050        20,000,000
                    BBB-   Baa1   20,000,000    Global Marine Inc., 12.75% due
                                                    12/15/1999                              20,047,500        20,925,000
                    B      B1     22,000,000    KCS Energy Inc., 11% due 1/15/2003          22,723,750        24,200,000
                    BBB-   B1     17,750,000    Maxus Energy Corp., 9.875% due
                                                    10/15/2002                              16,726,250        18,641,848
                    BBB-   Baa3   28,000,000    Oleoducto Centrale S.A., 9.35%
                                                    due 9/01/2005 (j)                       27,967,500        30,035,264
                    B+     B1     25,500,000    Parker Drilling Co., 9.75% due
                                                    11/15/2006                              25,510,725        27,157,500
                                                Petroleo Brasileiro S.A.--Petrobras:
                    BB-    B1     15,000,000        10% due 10/17/2006 (j)                  14,869,813        15,975,000
                    B+     B1     13,000,000        10% due 10/17/2006                      13,107,500        13,845,000
                    B+     Ba2    11,250,000    Rowan Companies, Inc., 11.875% due
                                                    12/01/2001                              11,335,000        11,812,500
                    BB+    Ba3    25,000,000    Seagull Energy Corp., 8.625% due
                                                    8/01/2005                               24,990,000        26,312,500
                                                TransAmerican Energy (j):
                    B+     B3     21,450,000        11.50% due 6/15/2002                    21,264,000        21,450,000
                    B+     B3    265,700,000        13.206% due 6/15/2002 (a)              212,568,606       212,227,875
                    BB     Ba2    15,000,000    Triton Energy Corp., 9.25% due
                                                    4/15/2005                               14,936,550        15,843,750
                    B-     B2     20,000,000    United Refining Co., 10.75% due
                                                    6/15/2007 (j)                           20,000,000        20,700,000
                    BBB-   Ba3    25,000,000    Yacimientos Petroliferos Fiscales S.A.
                                                    (YPF) (Sponsored), 8% due 2/15/2004     19,967,500        25,468,750
                                                                                        --------------    --------------
                                                                                           556,384,026       577,964,362

Entertainment--     B-     B2     40,000,000    AMF Group Inc., Series B, 12.45%
1.2%                                                due 3/15/2006 (a)                       26,169,962        30,000,000
                    B      B2     60,000,000    Six Flags Theme Parks Inc., 11.566%
                                                    due 6/15/2000 (a)                       57,417,967        62,850,000
                                                                                        --------------    --------------
                                                                                            83,587,929        92,850,000

Finance--0.5%                                   Polysindo International Finance Co.:
                    BB+    Ba2     5,800,000        11.375% due 6/15/2006                    6,325,750         6,325,750
                    BB+    Ba2    10,000,000        9.375% due 7/30/2007                     9,970,020         9,862,500
                    B-     B3     17,500,000    Salem Communications Corp., 9.50% due
                                                    10/01/2007 (j)                          17,589,375        17,893,750
                                                                                        --------------    --------------
                                                                                            33,885,145        34,082,000
</TABLE>

                                      50
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Financial                                       First Nationwide Holdings Inc.:
Services--1.1%      B      B3    $17,000,000        12.50% due 4/15/2003                $   16,806,710    $   19,167,500
                    B      Ba3    12,000,000        10.625% due 10/01/2003                  12,000,000        13,290,000
                    BB+    B1      9,000,000    Penncorp Financial Group Inc., 9.25%
                                                    due 12/15/2003                           9,090,000         9,517,500
                                                Reliance Group Holdings Inc.:
                    BB+    Ba3     7,425,000        9% due 11/15/2000                        6,798,125         7,771,525
                    BB-    B1     22,575,000        9.75% due 11/15/2003                    21,362,500        23,913,245
                    BB-    NR*    13,000,000    Veritas Holdings GMBH, 9.625%
                                                    due 12/15/2003 (j)                      13,000,000        13,877,500
                                                                                        --------------    --------------
                                                                                            79,057,335        87,537,270

Food &                                          Chiquita Brands International Inc.:
Beverage--2.6%      B+     B1     30,000,000        9.125% due 3/01/2004                    29,585,625        30,975,000
                    B+     B1     20,000,000        10.25% due 11/01/2006                   19,881,400        21,850,000
                    B      B3     23,450,000    Curtice Burns Food, Inc., 12.25%
                                                    due 2/01/2005                           23,562,125        25,970,875
                    BB+    NR*    15,000,000    DGS International Finance Co.,
                                                    10% due 6/01/2007(j)                    14,915,700        15,337,500
                    B-     B3     23,463,000    Envirodyne Industries, Inc., 10.25%
                                                    due 12/01/2001                          22,781,845        23,638,973
                    B+     B2     25,000,000    Fresh Del Monte Corp., 10% due
                                                    5/01/2003                               25,012,500        26,500,000
                    B-     B2     24,000,000    International Home Foods, Inc.,
                                                    10.375% due 11/01/2006                  24,000,000        26,640,000
                    B      B2     12,000,000    Southern Foods SFG, 9.875% due
                                                    9/01/2007 (j)                           12,000,000        12,510,000
                    B+     B1     18,000,000    Texas Bottling Group, Inc., 9% due
                                                    11/15/2003                              18,002,500        18,720,000
                                                                                        --------------    --------------
                                                                                           189,741,695       202,142,348

Foreign             BB-    NR*     7,000,000    City of Saint Petersburgh, 9.50% due
Government                                          6/18/2002 (j)                            6,976,270         7,236,250
Obligations--                                   Republic of Argentina:
1.6%                BB     Ba3    35,000,000        11% due 10/09/2006                      35,133,680        40,031,250
                    BB     B3     30,750,000        Global Bonds, 11.375% due 1/30/2017     31,692,220        35,885,250
                    BB-    B1      9,500,000    Republic of Brazil, Global Bonds,
                                                    10.125% due 5/15/2027                    8,857,230         9,517,813
                    BB     Ba2    25,000,000    United Mexican States, Government
                                                    Bonds, 11.50% due 5/15/2026             26,375,000        30,475,000
                                                                                        --------------    --------------
                                                                                           109,034,400       123,145,563

Gaming--3.8%        BB-    B1     15,000,000    Boyd Gaming Corporation, 9.50% due
                                                    7/15/2007(j)                            14,848,500        15,337,500
                    B+     B2     37,000,000    GB Property Funding Corp., 10.875%
                                                    due 1/15/2004                           35,072,500        33,392,500
                    BB     Ba3    20,000,000    Grand Casinos Inc., 10.125% due
                                                    12/01/2003                              19,837,500        21,250,000
                    D      Caa    60,115,000    Harrah's Jazz Co., 14.25% due
                                                    11/15/2001(i)                           49,536,050        23,144,275
                    B+     B2     20,000,000    Hollywood Casino Corp., 12.75%
                                                    due 11/01/2003                          19,230,296        21,950,000
                    BB-    Ba3    25,000,000    Showboat Inc., 9.25% due 5/01/2008          25,264,625        26,000,000
                    B+     B2     25,000,000    Station Casinos Inc., 9.75% due
                                                    4/15/2007                               24,279,564        25,062,500
                    BB-    B1     90,000,000    Trump Atlantic City Associates, 11.25%
                                                    due 5/01/2006                           88,879,062        87,412,500
                    NR*    Caa    40,000,000    Trump's Castle Funding, Inc., 11.75%
                                                    due 11/15/2003                          36,141,840        37,550,000
                                                                                        --------------    --------------
                                                                                           313,089,937       291,099,275
</TABLE>

                                      51
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Health Care--       B-     B2    $20,000,000    Sun Healthcare Group, Inc., 9.50%
0.3%                                                due 7/01/2007 (j)                   $   19,750,653    $   20,700,000

Health Services--   B+     B1     45,200,000    Beverly Enterprises, Inc., 9%
2.0%                                                due 2/15/2006                           44,200,550        47,460,000
                    B+     Ba3    52,390,000    Fresensius Medical Care AG, 9%
                                                    due 12/01/2006                          52,771,550        54,551,088
                    B      B3     16,800,000    Imed Corp., 9.75% due 12/01/2006 (j)        16,994,312        17,472,000
                    B+     Ba3    30,000,000    Tenet Healthcare Corp., 8.625% due
                                                    1/15/2007                               29,968,200        31,125,000
                                                                                        --------------    --------------
                                                                                           143,934,612       150,608,088

Home Builders--     B-     B2      4,000,000    Del E. Webb Corp., 9% due 2/15/2006          3,140,000         3,990,000
0.9%                B+     Ba3    20,000,000    Greystone Homes Inc., 10.75% due
                                                    3/01/2004                               19,115,000        22,000,000
                    NR*    Ba2    12,000,000    Ryland Group, Inc. (The), 10.50%
                                                    due 7/01/2006                           11,818,440        13,380,000
                    BB-    B1     32,000,000    U.S. Home Corp., 8.88% due 8/15/2007        32,017,500        32,640,000
                                                                                        --------------    --------------
                                                                                            66,090,940        72,010,000

Hotels--1.8%        BB-    Ba3    80,000,000    HMC Acquisition Properties, 9%
                                                    due 12/15/2007                          79,272,500        82,600,000
                                                HMH Properties Inc.:
                    BB-    Ba3    40,000,000        9.50% due 5/15/2005                     39,139,765        42,150,000
                    BB-    Ba3    15,500,000        8.875% due 7/15/2007 (j)                15,519,375        15,984,375
                                                                                        --------------    --------------
                                                                                           133,931,640       140,734,375

Independent                                     AES Corporation (The):
Power               B+     Ba1    30,000,000        10.25% due 7/15/2006                    30,000,000        32,850,000
Producers--2.6%     B+     Ba1    21,000,000        8.375% due 8/15/2007                    20,901,300        21,157,500
                    BB     Ba2    30,000,000    CE Casecnan Water & Energy Co., 11.45%
                                                    due 11/15/2005                          30,000,000        32,700,000
                    BB+    Ba2    20,000,000    California Energy Company, Inc.,
                                                    9.875% due 6/30/2003                    20,122,500        21,567,500
                    BB-    Ba3    36,000,000    Calpine Corporation, 8.75%
                                                    due 7/15/2007 (j)                       36,018,825        36,810,000
                    NR*    NR*    18,500,000    Consolidated Hydro, Inc., 12.22%
                                                    due 7/15/2003 (a)(i)                    15,656,356        12,117,500
                                                Midland Cogeneration Venture Limited
                                                Partnership:
                    BB     Ba3     3,582,146        10.33% due 7/23/2002++                   3,834,394         3,897,875
                    BB     Ba3    18,150,093        10.33% due 7/23/2002++                  18,802,604        19,752,655
                    B      B2     11,250,000        11.75% due 7/23/2005                    11,310,000        13,369,274
                    B      B2      5,500,000        13.25% due 7/23/2006                     6,002,565         6,961,625
                                                                                        --------------    --------------
                                                                                           192,648,544       201,183,929

Industrial          CCC    B3      7,912,000    Thermadyne Industries, Inc., 10.75%
Services--0.1%                                      due 11/01/2003                           7,914,802         8,505,400

Insurance--0.1%     BB+    Ba3    10,000,000    SIG Capital Trust I, 9.50% due
                                                    8/15/2027 (j)                           10,000,000        10,100,000

Media &             B      Ba2     5,000,000    CANTV Finance Ltd., 9.25% due
Communications--                                    2/01/2004                                4,990,500         5,150,000
International--                                 Comtel Brasileira Ltd.:
2.6%                BB-    B1     29,500,000        10.75% due 9/26/2004 (j)                29,500,000        31,380,625
                    BB-    B1        500,000        10.75% due 9/26/2004 (k)                   517,500           529,287
                    BB-    B1     39,000,000    Globo Communicacoes e Participacoes,
                                                    Ltd., 10.50% due 12/20/2006 (j)         39,179,450        40,803,750
</TABLE>

                                      52
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>  <C>             <S>                                     <C>               <C>
Media &                                         Grupo Televisa, S.A. de C.V.:
Communications--    BB     Ba3  $  2,500,000        11.375% due 5/15/2003               $    2,637,500    $    2,771,875
International       BB     Ba3    39,000,000        11.875% due 5/15/2006                   42,079,687        45,093,750
(concluded)         BB     Ba3    15,000,000        11.363% due 5/15/2008 (a)               10,867,924        11,287,500
                    NR*    NR*    15,000,000    Orion Network Systems, Inc., 11.25%
                                                    due 1/15/2007 (e)                       15,000,000        16,500,000
                    BBB-   Ba3    40,000,000    Telefonica de Argentina S.A., 11.875%
                                                    due 11/01/2004                          38,763,075        48,500,000
                                                                                        --------------    --------------
                                                                                           183,535,636       202,016,787

Metals &            NR*    B1     70,000,000    CSN Iron S.A., 9.125% due
Mining--2.5%                                        6/01/2007 (j)                           68,687,500        69,125,000
                    CCC+   B2     50,000,000    Kaiser Aluminum & Chemical Corp.,
                                                    12.75% due 2/01/2003                    51,088,125        54,031,250
                                                Maxxam Group, Inc.:
                    CCC+   B3     11,750,000        11.25% due 8/01/2003                    11,816,250        12,513,750
                    CCC+   B3     41,155,000        12.37% due 8/01/2003 (a)                37,122,869        38,068,375
                    BB-    Ba3    18,000,000    Murrin Murrin Holdings, Inc., 9.375%
                                                    due 8/31/2007(j)                        18,000,000        18,585,000
                                                                                        --------------    --------------
                                                                                           186,714,744       192,323,375

Packaging--0.5%     B+     B3     15,000,000    Printpack Inc., 10.625% due 8/15/2006       15,000,000        16,237,500
                    B      B1     12,000,000    Silgan Corp., 9% due 6/01/2009              12,000,000        12,315,000
                    B+     Ba3    10,000,000    Vicap S.A., 11.375% due 5/15/2007 (j)        9,947,000        11,137,500
                                                                                        --------------    --------------
                                                                                            36,947,000        39,690,000

Paper & Forest      BB     Ba3    35,500,000    APP International Finance Co., 11.75%
Products--4.8%                                      due 10/01/2005                          35,306,250        38,340,000
                    B      B3     50,000,000    Ainsworth Lumber Company, 12.50% due
                                                    7/15/2007++++(j)                        48,619,000        48,589,525
                                                Container Corporation of America:
                    B+     B2     15,420,000        9.75% due 4/01/2003                     15,433,400        16,730,700
                    B+     B1     13,000,000        11.25% due 5/01/2004                    13,000,000        14,381,250
                    BB-    B1     60,000,000    Doman Industries Ltd., 8.75% due
                                                    3/15/2004                               57,006,250        59,475,000
                    BB-    Ba3     5,000,000    Indah Kiat Finance Maurtitius, 10% due
                                                    7/01/2007                                4,875,000         4,937,500
                    BB     Ba2    14,500,000    P.T. Indah Kiat International Finance,
                                                    12.50% due 6/15/2006                    14,572,500        16,095,000
                    B      B3     27,220,000    Pacific Lumber Co., 10.50% due
                                                    3/01/2003                               26,868,237        28,308,800
                    Ba3    BB      5,000,000    Pindo Deli Finance Mauritius, 10.75%
                                                    due 10/01/2007 (j)                       4,984,900         4,984,900
                    CC     Caa    25,500,000    Repap New Brunswick, Inc., 10.625%
                                                    due 4/15/2005                           25,597,500        25,181,250
                    BBB+   Ba2    25,000,000    Repap Wisconsin Inc., 9.25% due
                                                    2/01/2002                               23,537,500        26,375,000
                                                Riverwood International Corp.:
                    B-     B3     15,000,000        10.25% due 4/01/2006                    14,396,250        15,412,500
                    CCC+   Caa    30,000,000        10.875% due 4/01/2008                   29,248,750        29,962,500
                    B+     B1     15,000,000    S.D. Warren Co., 12% due 12/15/2004         15,000,000        16,987,500
                    BB     Ba3    25,000,000    Tjiwi Kimia Finance Mauritius, 10%
                                                    due 8/01/2004 (j)                       24,680,750        24,718,750
                                                                                        --------------    --------------
                                                                                           353,126,287       370,480,175
</TABLE>

                                      53
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Product             B-     B3    $42,000,000    AmeriServ Food Company, 10.125% due
Distribution--                                      7/15/2007 (j)                       $   42,000,000    $   43,680,000
0.7%                B+     B3     12,000,000    Fleming Companies, Inc., 10.50% due
                                                    12/01/2004 (j)                          11,930,280        12,600,000
                                                                                        --------------    --------------
                                                                                            53,930,280        56,280,000

Publishing &                                    Hollinger International, Inc.:
Printing--0.7%      BB+    Ba3     5,000,000        8.625% due 3/15/2005                     4,975,000         5,156,250
                    BB-    B1     21,500,000        9.25% due 2/01/2006                     20,925,312        22,386,875
                    BB-    B1      3,000,000        9.25% due 3/15/2007                      2,980,740         3,135,000
                    BB-    B1     20,000,000    World Color Press, Inc., 9.125%
                                                    due 3/15/2003                           20,019,375        21,000,000
                                                                                        --------------    --------------
                                                                                            48,900,427        51,678,125

Restaurants--       B+     Ba3    27,000,000    Foodmaker, Inc., 9.75% due 11/01/2003       26,216,200        28,215,000
0.4%

Specialty           NR*    NR*    25,087,000    Cumberland Farms, Inc. DE, 10.50%
Retailing--0.3%                                     due 10/01/2003                          23,922,651        25,212,435

Steel--2.0%         BB-    Ba2    25,000,000    A.K. Steel Holding Corp., 9.125%
                                                    due 12/15/2006                          25,056,250        26,531,250
                    BB     Ba3    17,000,000    Hysla, S.A. de C.V., 9.25% due
                                                    9/15/2007 (j)                           16,902,930        17,351,900
                    B+     B1     10,000,000    Ivaco Inc., 11.50% due 9/15/2005             9,800,000        11,025,000
                    B      B3     25,000,000    Republic Engineered Steel Inc.,
                                                    9.875% due 12/15/2001                   24,117,500        24,187,500
                    B+     B2     25,000,000    WCI Steel Inc., 10% due 12/01/2004          25,000,000        26,625,000
                    B      B2     23,000,000    Weirton Steel Inc., 10.75% due
                                                    6/01/2005                               22,413,750        24,552,500
                    BB-    B2     20,000,000    Wheeling-Pittsburg Steel Corp.,
                                                    9.375% due 11/15/2003                   18,670,000        20,650,000
                                                                                        --------------    --------------
                                                                                           141,960,430       150,923,150

Supermarkets--                                  Pueblo Xtra International Inc.:
0.7%                B-     B3     21,075,000        9.50% due 8/01/2003                     19,460,250        20,916,938
                    B-     B3      3,000,000        9.50% due 8/01/2003                      2,721,362         3,000,000
                                                Ralph's Grocery Co.:
                    B      B1     20,000,000        10.45% due 6/15/2004                    19,042,413        22,000,000
                    B      B1     10,000,000        10.45% due 6/15/2004                     9,702,500        10,975,000
                                                                                        --------------    --------------
                                                                                            50,926,525        56,891,938

Telephone           CCC    NR*    20,000,000    McCaw International Ltd., 12.47%
Communications--                                    due 4/15/2007 (a)                       11,773,925        12,100,000
0.2%

Telephone--                                     Brooks Fiber Properties Inc. (a):
Competitive         NR*    NR*    42,000,000        11.399% due 3/01/2006                   28,309,062        33,705,000
Local Exchange      NR*    NR*    39,000,000        11.568% due 11/01/2006                  24,906,869        30,566,250
Carriers--1.5%      B      B3      8,000,000    Nextlink Communications, 9.625% due
                                                    10/01/2007                               8,000,000         8,000,000
                    B      B1     40,000,000    Teleport Communications Group Inc.,
                                                    9.875% due 7/01/2006                    40,943,500        43,600,000
                                                                                        --------------    --------------
                                                                                           102,159,431       115,871,250

Textiles--0.4%      B+     B2     25,000,000    Westpoint Stevens Inc., 9.375%
                                                    due 12/15/2005                          25,100,000        26,312,500
</TABLE>

                                      54
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (continued)
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Transportation--    BB-    NR*   $38,000,000    Autopistas del Sol S.A., 10.25% due
3.5%                                                8/01/2009 (j)                       $   38,000,000    $   38,855,000
                    BB-    Ba2    25,000,000    Eletson Holdings, Inc., 9.25% due
                                                    11/15/2003                              24,472,500        25,625,000
                    BB     Ba3    35,000,000    GS Superhighway Holdings, 10.25%
                                                    due 8/15/2007 (j)                       34,719,800        35,087,500
                    BB     Ba2    20,000,000    Gearbulk Holdings, Ltd., 11.25% due
                                                    12/01/2004                              20,518,750        22,150,000
                    BB-    Ba3    10,000,000    Stena AB, 8.75% due 6/15/2007               10,000,000        10,000,000
                                                TFM, S.A. de C.V. (j):
                    B+     B2      2,000,000        10.25% due 6/15/2007                     2,000,000         2,110,000
                    B+     B2     21,500,000        11.767% due 6/15/2009 (a)               12,541,639        14,351,250
                                                Transportacion Maritima Mexicana,
                                                S.A. de C.V.:
                    BB-    Ba3    20,000,000        9.25% due 5/15/2003                     17,092,750        20,450,000
                    BB-    Ba3    29,800,000        (Class A), 10% due 11/15/2006           29,422,250        30,768,500
                    NR*    B3     54,606,000    Transtar Holdings L.P., 12.04% due
                                                    12/15/2003 (a)                          43,031,646        47,643,735
                    BB     Ba2    19,841,000    Viking Star Shipping Co., Inc., 9.625%
                                                    due 7/15/2003                           19,886,000        20,833,050
                                                                                        --------------    --------------
                                                                                           251,685,335       267,874,035

US Government       AAA    Aaa   115,000,000    US Treasury Bonds, 6.25% due 8/15/2023     105,307,800       111,657,669
Obligations--1.5%

Utilities--4.5%     BB-    B1     34,469,000    Beaver Valley Funding Corp., 9%
                                                    due 6/01/2017                           31,081,506        37,498,134
                    BB     Ba2     7,000,000    Cleveland Electric Illuminating Co.,
                                                    9.50% due 5/15/2005                      6,986,560         7,706,370
                    NR*    NR*    20,000,000    Companhia de Saneamento Basico do
                                                    Estado de Sao-Paulo, 10% due
                                                    7/28/2005 (j)                           20,000,000        20,055,060
                    BB-    B1     65,000,000    Espirito Santo-Escelsa S.A., 10%
                                                    due 7/15/2007 (j)                       64,918,750        65,464,100
                    NR*    NR*    37,000,000    Inversora de Electrica, 9% due
                                                    9/16/2004 (j)                           36,895,000        36,958,190
                    BBB-   B1     40,000,000    Metrogas S.A., 12% due 8/15/2000            40,031,875        44,600,000
                    NR*    NR*    15,546,848    Sunflower Electric Power Corp., 8% due
                                                    12/31/2016++ (k)                        10,198,292        11,329,766
                    BB-    Ba3    20,000,000    Texas-New Mexico Power Corp., 10.75%
                                                    due 9/15/2003                           20,065,000        21,650,000
                    BBB-   Baa3   41,823,600    Trans Gas de Occidente, 9.79% due
                                                    11/01/2010++ (j)                        41,898,285        43,932,973
                                                Tucson Electric & Power Co.++ (k):
                    NR*    NR*    33,847,781        10.21% due 1/01/2009                    32,005,359        34,631,696
                    NR*    NR*    21,526,207        10.732% due 1/01/2013                   20,326,836        22,176,083
                                                                                        --------------    --------------
                                                                                           324,407,463       346,002,372

Waste               B+     B3     20,000,000    Allied Waste North America, 10.25%
Management--                                        due 12/01/2006                          20,000,000        21,950,000
0.4%                D      Ca     23,700,000    Mid-American Waste Systems, Inc.,
                                                    12.25% due 2/15/2003 (i)                23,667,250        11,020,500
                                                                                        --------------    --------------
                                                                                            43,667,250        32,970,500

Wireless            BB+    Ba3    35,000,000    Comcast Cellular Communications,
Communications--                                    Inc., 9.50% due 5/01/2007 (j)           35,271,750        36,750,000
Domestic Paging &   CCC-   B3     30,000,000    Dial Call Communications, 13.852%
Cellular--3.9%                                      due 4/15/2004 (a)                       22,966,039        28,125,000
                                                Mobilemedia Communication, Inc. (i):
                    D      C      33,000,000        11.58% due 12/01/2003 (a)               25,098,450         5,940,000
                    D      C      12,126,000        9.375% due 11/01/2007                   10,618,705         2,758,665
                    CCC    B3     80,000,000    Nextel Communications Inc., 12.08%
                                                    due 8/15/2004 (a)                       61,931,139        69,250,000
</TABLE>

                                      55
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                  S&P     Moody's    Face                                                                       Value
Industries       Rating    Rating   Amount                    Issue                         Cost              (Note 1a)

Bonds (concluded)
<S>                 <S>    <S>   <C>            <S>                                     <C>               <C>
Wireless            NR*    NR*   $21,000,000    Page Mart Inc., 12.74% due
Communications--                                    11/01/2003 (a)                      $   18,096,286    $   19,267,500
Domestic Paging &   B      B2     75,000,000    Paging Network, Inc., 10% due
Cellular                                            10/15/2008                              74,756,250        77,625,000
(concluded)         B-     B2     19,730,000    USA Mobile Communications Holdings,
                                                    Inc., 9.50% due 2/01/2004               18,997,875        19,360,063
                    B+     B1     25,000,000    Vanguard Cellular Systems, Inc.,
                                                    9.375% due 4/15/2006                    24,975,250        25,937,500
                    B-     B3     15,000,000    Western Wireless Corp., 10.50%
                                                    due 2/01/2007                           15,062,500        15,787,500
                                                                                        --------------    --------------
                                                                                           307,774,244       300,801,228

Wireless            B+     B3     53,472,000    Comunicacion Celular S.A., 12.76%
Communications--                                    due 11/15/2003 (a)(h)                   36,454,358        41,708,160
International       B-     B3     90,000,000    Millicom International Cellular
Paging &                                            S.A., 13.39% due 6/01/2006 (a)          56,124,360        69,975,000
Cellular--1.5%                                                                          --------------    --------------
                                                                                            92,578,718       111,683,160

                                                Total Investments in Bonds--84.7%        6,191,012,568     6,497,698,637


                                     Shares
                                      Held

Preferred Stocks

Broadcasting--Radio &                  2,694    Paxson Communications Corp.
Television--0.2%                                    Convertible)(j)                          2,575,292         2,997,075
                                     139,100    SFX Broadcasting Inc. (Convertible)(j)      13,910,000        16,066,050
                                                                                        --------------    --------------
                                                                                            16,485,292        19,063,125

Cable--Domestic--0.3%                177,276    Cablevision Systems Corp. (Series M)        14,634,820        19,478,201

Cable--International--0.3%            20,810    NTL Inc.                                    20,816,975        23,671,375

Entertainment--1.3%                   87,097    Time Warner Inc. (Series M)++++             87,692,511        99,399,451

Financial Services--0.4%           1,230,000    California Federal Bank (Series A)          30,815,000        32,287,500

Independent Power Producers--0.0%     29,517    Consolidated Hydro, Inc. (Series H)(i)      14,891,917         2,966,458

Paper & Forest Products--0.3%        435,000    S.D. Warren Co. (Series B)                  13,847,190        20,118,750

Publishing &                         421,000    K-III Communications Corp.                  10,562,750        11,367,000
Printing--0.5%                       152,870    K-III Communications Corp. (Series B)       15,398,238        16,605,495
                                     125,000    K-III Communications Corp. (Series D)       12,500,000        13,343,750
                                                                                        --------------    --------------
                                                                                            38,460,988        41,316,245

Steel--0.2%                          550,000    USX Capital LLC (Series A)                  13,750,000        14,059,375

Telephone--Competitive                10,431    Intermedia Communications Inc.
Local Exchange Carriers--0.2%                       (Series B)(Convertible)(j)              10,452,011        12,517,200

Utilities--0.0%                        6,446    El Paso Electric Company                       701,722           717,117

Wireless Communications--             20,000    Nextel Communications Inc. (j)              20,000,000        22,475,000
Domestic Paging & Cellular--0.3%

                                                Total Investments in
                                                Preferred Stocks--4.0%                     282,548,426       308,069,797
</TABLE>

                                      56
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued) 
<CAPTION>
                                    Shares                                                                      Value
Industries                           Held                    Issue                         Cost               (Note 1a)

Common Stocks
<S>                              <C>            <S>                                     <C>               <C>
Cable--Domestic--0.1%                  2,887    CS Wireless Systems Inc. (i)            $       20,336    $           58
                                     195,096    Echostar Communications Corp.
                                                    (Series A)(i)                            1,385,894         4,755,465
                                                                                        --------------    --------------
                                                                                             1,406,230         4,755,523

Consumer Products--0.1%              200,369    Culligan Water Technologies Inc. (i)         1,686,248         9,216,974

Energy--0.0%                           8,176    Pioneer Natural Resources Co.                  199,648           342,370

Entertainment--0.2%                1,191,381    On Command Corporation (i)(l)               52,121,914        16,158,105

Industrial Services--0.0%             11,400    Thermadyne Industries, Inc. (i)                165,300           340,575

Wireless Communications--            170,421    Nextel Communications Inc. (i)               2,749,981         4,910,255
Paging & Cellular--0.1%

                                                Total Investments in
                                                Common Stocks--0.5%                         58,329,321        35,723,802


Trusts & Warrants

Cable--Domestic--0.0%                177,500    American Telecasting Inc.
                                                    (Warrants)(b)                              413,723            79,875
                                      25,000    People's Choice T.V. Corp.
                                                    (Warrants)(b)                              140,353            14,062
                                                                                        --------------    --------------
                                                                                               554,076            93,937

Entertainment--0.0%                  370,886    On Command Corporation (Warrants)(b)(l)      2,967,104         2,318,037

Gaming--0.0%                           7,550    Goldriver Hotel & Casino Corp.
                                                    Liquidating Trust (i) (k)                  192,320                 0
                                     113,386    Trump Castle Funding, Inc.
                                                    (Warrants)(b)                                    0                 0
                                                                                        --------------    --------------
                                                                                               192,320                 0

Independent Power Producers--0.0%     18,000    Consolidated Hydro, Inc. (Warrants)(b)         390,123           261,000

Wireless Communications--             57,040    Page Mart Inc. (Warrants)(b)                   236,127           402,845
Domestic Paging & Cellular--0.0%

Wireless Communications--             53,472    Comunicacion Celular S.A.
International Paging & Cellular--0.0%               (Warrants)(b)(j)                           109,680           340,884


                                                Total Investments in Trusts &
                                                Warrants--0.0%                               4,449,430         3,416,703


                                     Face
                                    Amount
Short-Term Securities

Commercial                       $30,000,000    Atlantic Asset Securitization Corp.,
Paper***--8.7%                                      5.56% due 10/15/1997                    29,935,133        29,935,133
                                  40,000,000    Corporate Receivables Corp., 5.53%
                                                    due 10/15/1997                          39,913,978        39,913,978
                                                Countrywide Home Loans Inc.:
                                  70,000,000        5.53% due 10/23/1997                    69,763,439        69,763,439
                                  24,000,000        5.54% due 10/24/1997                    23,915,053        23,915,053
                                  30,000,000    Eureka Securitization Inc., 5.53%
                                                    due 10/09/1997                          29,963,133        29,963,133
                                                Finova Capital Corp.:
                                  20,500,000        5.52% due 10/23/1997                    20,430,847        20,430,847
                                  15,000,000        5.54% due 11/06/1997                    14,916,900        14,916,900
                                  40,000,000        5.54% due 11/14/1997                    39,729,156        39,729,156
</TABLE>

                                      57
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (concluded)
<CAPTION>
                                     Face                                                                       Value
                                    Amount                    Issue                         Cost              (Note 1a)

Short-Term Securities (concluded)
<S>                             <C>             <S>                                     <C>               <C>
Commercial                                      General Motors Acceptance Corp.:
Paper***                        $  4,985,000        5.65% due 10/01/1997                $    4,985,000    $    4,985,000
(concluded)                       68,197,000        6.50% due 10/01/1997                    68,197,000        68,197,000
                                  65,478,000    Lexington Parker, 5.54% due 11/04/1997      65,135,405        65,135,405
                                                Morgan Stanley Group Inc.:
                                  50,000,000        5.51% due 10/07/1997                    49,954,083        49,954,083
                                  50,000,000        5.52% due 10/29/1997                    49,785,333        49,785,333
                                  60,000,000    Navistar Financial Corp., 5.92%
                                                    due 10/22/1997                          59,792,800        59,792,800
                                                Onyx Corp.:
                                  30,000,000        5.95% due 10/03/1997                    29,990,082        29,990,082
                                  15,000,000        5.95% due 10/14/1997                    14,967,771        14,967,771
                                  20,000,000        5.95% due 11/06/1997                    19,884,216        19,884,216
                                  35,000,000    Three Rivers Funding Inc., 5.53%
                                                    due 10/10/1997                          34,951,613        34,951,613
                                                                                        --------------    --------------
                                                                                           666,210,942       666,210,942

US Government Agency                            Federal National Mortgage Association:
Obligations***--1.4%              35,000,000        5.42% due 10/08/1997                    34,963,114        34,963,114
                                  30,000,000        5.40% due 10/14/1997                    29,941,500        29,941,500
                                  45,000,000        5.48% due 10/14/1997                    44,910,950        44,910,950
                                                                                        --------------    --------------
                                                                                           109,815,564       109,815,564

                                                Total Investments in
                                                Short-Term Securities--10.1%               776,026,506       776,026,506

Total Investments--99.3%                                                                $7,312,366,251     7,620,935,445
                                                                                        ==============
Other Assets Less Liabilities--0.7%                                                                           54,813,952
                                                                                                          --------------
Net Assets--100.0%                                                                                        $7,675,749,397
                                                                                                          ==============


<FN>
  ++Subject to principal paydowns.
++++Represents a pay-in-kind security which may pay
    interest/dividends in additional face/shares.
   *Not Rated.
  **Industry classifications for convertible bonds are: 
    (1) Conglomerates; (2) Health Services; (3) Transportation Services.
 ***Commercial Paper and certain US Government Agency Obligations are
    traded on a discount basis; the interest rates shown are the
    discount rates paid at the time of purchase by the Portfolio.
 (a)Represents a zero coupon or step bond; the interest rate shown is
    the effective yield at the time of purchase by the Portfolio.
 (b)Warrants entitle the Portfolio to purchase a predetermined number
    of shares of common stock/face amount of bonds. The purchase price
    and number of shares/face amount are subject to adjustment under
    certain conditions until the expiration date.
 (c)Each $1,000 face amount contains one warrant of Wireless One Inc.
 (d)Each $1,000 face amount contains one warrant of Australis Media
    Ltd.
 (e)Each $1,000 face amount contains one warrant of Orion Network
    Systems, Inc.
 (f)Each $1,000 face amount contains one warrant of United
    International Holdings, Inc.

 See Notes to Financial Statements.

 (g)Each $1,000 face amount contains six warrants of Echostar
    Communications Corp.
 (h)Each $1,000 face amount contains one warrant of Comunicacion
    Celular S.A.
 (i)Non-income producing security.
 (j)The security may be offered and sold to "qualified institutional
    buyers" under Rule 144A of the Securities Act of 1933.
 (k)Restricted security as to resale.  The value of the Portfolio's
    investments in restricted securities was approximately $68,667,000,
    representing 0.9% of net assets.

<CAPTION>
                                          Acquisition                                 Value
    Issue                                    Date(s)                  Cost          (Note 1a)
    <S>                              <C>                        <C>              <C>
    Comtel Brasileira Ltd.,
      10.75% due 9/26/2004                  9/18/1996           $     517,500    $     529,287
    Goldriver Hotel & Casino
      Corp., Liquidating Trust       8/31/1992--11/17/1992            192,320                0
    Sunflower Electric Power Corp.,
      8% due 12/31/2016              11/29/1991--8/23/1995         10,198,292       11,329,766
    Tucson Electric & Power Co.:
      10.21% due 1/01/2009            7/27/1993--4/01/1996         32,005,359       34,631,696
      10.732% due 1/01/2013           3/01/1993--7/16/1993         20,326,836       22,176,083
                                                                -------------    -------------
    Total                                                       $  63,240,307    $  68,666,832
                                                                =============    =============

 (l)Investments in companies 5% or more of whose outstanding
    securities are held by the Portfolio (such companies are defined as
    "Affiliated Companies" in section 2 (a) (3) of the Investment
    Company Act of 1940) are as follows:

<CAPTION>
                                                           Net Share          Net     Dividend
    Industry            Affiliate                           Activity          Cost     Income 
    <S>              <S>                                   <C>            <C>            <C>
    Entertainment    On Command Corporation                1,191,381      $52,121,914    (i)
    Entertainment    On Command Corporation (Warrants)       370,886        2,967,104    (i)

    Ratings of issues shown have not been audited by Deloitte & Touche LLP.

</TABLE>

                                      58
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997

<TABLE>
FINANCIAL INFORMATION
<CAPTION>
Statement of Assets and Liabilities as of September 30, 1997
<S>                 <S>                                                                  <C>              <C>
Assets:             Investments, at value (identified cost--$7,312,366,251) (Note 1a)                     $7,620,935,445
                    Cash                                                                                         907,556
                    Receivables:
                      Interest                                                           $  131,458,343
                      Capital shares sold                                                    20,694,750
                      Securities sold                                                        19,767,761
                      Dividends                                                                 444,280
                      Paydowns                                                                   87,365      172,452,499
                                                                                         --------------
                    Prepaid registration fees and other assets (Note 1e)                                         845,079
                                                                                                          --------------
                    Total assets                                                                           7,795,140,579
                                                                                                          --------------

Liabilities:        Payables:
                      Securities purchased                                                   79,614,046
                      Dividends to shareholders (Note 1f)                                    19,908,751
                      Capital shares redeemed                                                11,213,611
                      Distributor (Note 2)                                                    3,713,413
                      Investment adviser (Note 2)                                             2,449,413      116,899,234
                                                                                         --------------
                    Accrued expenses and other liabilities                                                     2,491,948
                                                                                                          --------------
                    Total liabilities                                                                        119,391,182
                                                                                                          --------------

Net Assets:         Net assets                                                                            $7,675,749,397
                                                                                                          ==============

Net Assets          Class A Common Stock, $0.10 par value, 500,000,000
Consist of:         shares authorized                                                                     $   12,596,094
                    Class B Common Stock, $0.10 par value 1,500,000,000
                    shares authorized                                                                         66,233,918
                    Class C Common Stock, $0.10 par value 200,000,000
                    shares authorized                                                                          7,691,945
                    Class D Common Stock, $0.10 par value 500,000,000
                    shares authorized                                                                          5,985,677
                    Paid-in capital in excess of par                                                       7,262,439,136
                    Accumulated distributions in excess of investment
                    income--net (Note 1f)                                                                     (3,127,933)
                    Undistributed realized capital gains on investments--net                                  15,361,366
                    Unrealized appreciation on investments--net                                              308,569,194
                                                                                                          --------------
                    Net assets                                                                            $7,675,749,397
                                                                                                          ==============

Net Asset           Class A--Based on $1,044,799,502 and 125,960,942
Value:                       shares outstanding                                                           $         8.29
                                                                                                          ==============
                    Class B--Based on $5,495,487,714 and 662,339,180
                             shares outstanding                                                           $         8.30
                                                                                                          ==============
                    Class C--Based on $638,626,416 and 76,919,450
                             shares outstanding                                                           $         8.30
                                                                                                          ==============
                    Class D--Based on $496,835,765 and 59,856,765
                             shares outstanding                                                           $         8.30
                                                                                                          ==============


                    See Notes to Financial Statements.
</TABLE>

                                      59
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


<TABLE>
FINANCIAL INFORMATION (continued)
<CAPTION>
Statement of Operations for the Year Ended September 30, 1997
<S>                 <S>                                                                  <C>              <C>
Investment          Interest and discount earned                                                          $  619,991,404
Income              Dividends                                                                                 21,574,487
(Note 1d):          Other                                                                                      9,038,853
                                                                                                          --------------
                    Total income                                                                             650,604,744
                                                                                                          --------------

Expenses:           Account maintenance and distribution fees--Class B (Note 2)          $   36,108,272
                    Investment advisory fees (Note 2)                                        27,345,032
                    Account maintenance and distribution fees--Class C (Note 2)               3,921,960
                    Transfer agent fees--Class B (Note 2)                                     3,552,943
                    Account maintenance fees--Class D (Note 2)                                  972,042
                    Registration fees (Note 1e)                                                 815,844
                    Transfer agent fees--Class A (Note 2)                                       608,541
                    Accounting services (Note 2)                                                505,855
                    Printing and shareholder reports                                            497,444
                    Transfer agent fees--Class C (Note 2)                                       380,349
                    Professional fees                                                           377,640
                    Transfer agent fees--Class D (Note 2)                                       241,677
                    Custodian fees                                                              155,048
                    Directors' fees and expenses                                                 34,354
                    Pricing fees (Note 2)                                                        22,256
                    Other                                                                        56,246
                                                                                         --------------
                    Total expenses                                                                            75,595,503
                                                                                                          --------------
                    Investment income--net                                                                   575,009,241
                                                                                                          --------------

Realized &          Realized gain on investments--net                                                         20,040,352
Unrealized Gain on  Change in unrealized appreciation on investments--net                                    292,161,549
Investments--Net                                                                                          --------------
(Notes 1b, 1d & 3): Net Increase in Net Assets Resulting from Operations                                  $  887,211,142
                                                                                                          ==============

                    See Notes to Financial Statements.
</TABLE>

                                      60
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Statements of Changes in Net Assets
<CAPTION>

                                                                                                For the Year Ended
                                                                                                  September 30,
Increase (Decrease) in Net Assets:                                                           1997              1996
<S>                 <S>                                                                  <C>              <C>
Operations:         Investment income--net                                               $  575,009,241   $  452,381,675
                    Realized gain on investments--net                                        20,040,352       31,483,874
                    Change in unrealized appreciation/depreciation on
                    investments--net                                                        292,161,549       65,146,802
                                                                                         --------------   --------------
                    Net increase in net assets resulting from operations                    887,211,142      549,012,351
                                                                                         --------------   --------------

Dividends &         Investment income--net:
Distributions to      Class A                                                               (91,922,975)     (87,755,895)
Shareholders          Class B                                                              (407,172,006)    (329,093,983)
(Note 1f):            Class C                                                               (41,118,497)     (21,699,154)
                      Class D                                                               (34,795,763)     (16,708,496)
                    In excess of investment income--net:
                      Class A                                                                        --         (505,842)
                      Class B                                                                        --       (1,896,961)
                      Class C                                                                        --         (125,078)
                      Class D                                                                        --          (96,311)
                                                                                         --------------   --------------
                    Net decrease in net assets resulting from dividends
                    and distributions to shareholders                                      (575,009,241)    (457,881,720)
                                                                                         --------------   --------------

Capital Share       Net increase in net assets derived from capital
Transactions        share transactions                                                    1,535,324,290    1,376,309,947
(Note 4):                                                                                --------------   --------------

Net Assets:         Total increase in net assets                                          1,847,526,191    1,467,440,578
                    Beginning of year                                                     5,828,223,206    4,360,782,628
                                                                                         --------------   --------------
                    End of year                                                          $7,675,749,397   $5,828,223,206
                                                                                         ==============   ==============


                    See Notes to Financial Statements.
</TABLE>

                                      61
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Financial Highlights
<CAPTION>
The following per share data and ratios have been derived
from information provided in the financial statements.                                 Class A
                                                                         For the Year Ended September 30,
Increase (Decrease) in Net Asset Value:                     1997++        1996++       1995         1994         1993
<S>                 <S>                                  <C>           <C>          <C>         <C>           <C>
Per Share           Net asset value,
Operating           beginning of year                    $     7.93    $     7.80   $     7.66  $     8.13    $     7.84
Performance:                                             ----------    ----------   ----------  ----------    ----------
                    Investment income--net                      .74           .75          .81         .75           .79
                    Realized and unrealized gain
                    (loss) on investments--net                  .36           .14          .14        (.47)          .29
                                                         ----------    ----------   ----------  ----------    ----------
                    Total from investment operations           1.10           .89          .95         .28          1.08
                                                         ----------    ----------   ----------  ----------    ----------
                    Less dividends and distributions:
                      Investment income--net                   (.74)         (.76)        (.81)       (.75)         (.79)
                      In excess of investment
                      income--net                                --            --+++        --          --            --
                                                         ----------    ----------   ----------  ----------    ----------
                    Total dividends and distributions          (.74)         (.76)        (.81)       (.75)         (.79)
                                                         ----------    ----------   ----------  ----------    ----------
                    Net asset value, end of year         $     8.29    $     7.93   $     7.80  $     7.66    $     8.13
                                                         ==========    ==========   ==========  ==========    ==========

Total Investment    Based on net asset value per share       14.58%        11.95%       13.27%       3.42%        14.35%
Return:*                                                 ==========    ==========   ==========  ==========    ==========

Ratios to Average   Expenses                                   .51%          .51%         .55%        .53%          .55%
Net Assets:                                              ==========    ==========   ==========  ==========    ==========
                    Investment income--net                    9.23%         9.57%       10.70%       9.27%         9.78%
                                                         ==========    ==========   ==========  ==========    ==========

Supplemental        Net assets, end of period
Data:               (in thousands)                       $1,044,799    $  947,479   $  902,321  $  876,573    $  886,784
                                                         ==========    ==========   ==========  ==========    ==========
                    Portfolio turnover                       38.58%        32.44%       24.58%      32.52%        34.85%
                                                         ==========    ==========   ==========  ==========    ==========


                 <FN>
                  ++Based on average shares outstanding during the year.
                   *Total investment returns exclude the effects of sales loads.
                 +++Amount is less than $.01 per share.

                    See Notes to Financial Statements.
</TABLE>

                                      62
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Financial Highlights (continued)
<CAPTION>
The following per share data and ratios have been derived
from information provided in the financial statements.                              Class B
                                                                            For the Year Ended September 30,
Increase (Decrease) in Net Asset Value:                    1997++        1996++        1995        1994          1993
<S>                 <S>                                  <C>           <C>          <C>         <C>           <C>
Per Share           Net asset value,
Operating           beginning of year                    $     7.93    $     7.80   $     7.66  $     8.13    $     7.85
Performance:                                             ----------    ----------   ----------  ----------    ----------
                    Investment income--net                      .68           .69          .75         .69           .72
                    Realized and unrealized gain
                    (loss) on investments--net                  .37           .15          .14        (.47)          .28
                                                         ----------    ----------   ----------  ----------    ----------
                    Total from investment operations           1.05           .84          .89         .22          1.00
                                                         ----------    ----------   ----------  ----------    ----------
                    Less dividends and distributions:
                      Investment income--net                   (.68)         (.71)        (.75)       (.69)         (.72)
                      In excess of investment
                      income--net                                --            --+++++      --          --            --
                                                         ----------    ----------   ----------  ----------    ----------
                    Total dividends and distributions          (.68)         (.71)        (.75)       (.69)         (.72)
                                                         ----------    ----------   ----------  ----------    ----------
                    Net asset value, end of year         $     8.30    $     7.93   $     7.80  $     7.66    $     8.13
                                                         ==========    ==========   ==========  ==========    ==========

Total Investment    Based on net asset value per share       13.86%        11.11%       12.41%       2.66%        13.35%
Return:**                                                ==========    ==========   ==========  ==========    ==========

Ratios to Average   Expenses                                  1.27%         1.28%        1.32%       1.29%         1.31%
Net Assets:                                              ==========    ==========   ==========  ==========    ==========
                    Investment income--net                    8.46%         8.80%        9.81%       8.53%         8.94%
                                                         ==========    ==========   ==========  ==========    ==========

Supplemental        Net assets, end of year
Data:               (in thousands)                       $5,495,488    $4,250,539   $3,220,767  $2,347,223    $1,823,275
                                                         ==========    ==========   ==========  ==========    ==========
                    Portfolio turnover                       38.58%        32.44%       24.58%      32.52%        34.85%
                                                         ==========    ==========   ==========  ==========    ==========


<CAPTION>
                                                                                                 Class C
                                                                                                                For the
                                                                                                                Period
The following per share data and ratios have been derived                                 For the               Oct. 21,
from information provided in the financial statements.                                   Year Ended           1994++++ to
                                                                                       September 30,           Sept. 30,
Increase (Decrease) in Net Asset Value:                                           1997++         1996++          1995
<S>                 <S>                                                        <C>            <C>             <C>
Per Share           Net asset value, beginning of period                       $     7.94     $     7.81      $     7.59
Operating                                                                      ----------     ----------      ----------
Performance:        Investment income--net                                            .68            .68             .71
                    Realized and unrealized gain on investments--net                  .36            .15             .22
                                                                               ----------     ----------      ----------
                    Total from investment operations                                 1.04            .83             .93
                                                                               ----------     ----------      ----------
                    Less dividends and distributions:
                      Investment income--net                                         (.68)          (.70)           (.71)
                      In excess of investment income--net                              --             --+++++         --
                                                                               ----------     ----------      ----------
                    Total dividends and distributions                                (.68)          (.70)           (.71)
                                                                               ----------     ----------      ----------
                    Net asset value, end of period                             $     8.30     $     7.94      $     7.81
                                                                               ==========     ==========      ==========
Total Investment    Based on net asset value per share                             13.66%         11.05%          12.92%+++
Return:**                                                                      ==========     ==========      ==========

Ratios to Average   Expenses                                                        1.32%          1.33%           1.38%*
Net Assets:                                                                    ==========     ==========      ==========
                    Investment income--net                                          8.39%          8.73%           9.06%*
                                                                               ==========     ==========      ==========
Supplemental        Net assets, end of period (in thousands)                   $  638,626     $  362,518      $  135,019
Data:                                                                          ==========     ==========      ==========
                    Portfolio turnover                                             38.58%         32.44%          24.58%
                                                                               ==========     ==========      ==========

               <FN>
                  ++Based on average shares outstanding during the year.
                ++++Commencement of operations.

                    See Notes to Financial Statements.

                   *Annualized.
                  **Total investment returns exclude the effects of sales loads.
                 +++Aggregate total investment return.
               +++++Amount is less than $.01 per share.
</TABLE>

                                      63
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


FINANCIAL INFORMATION (concluded)

<TABLE>
Financial Highlights (concluded)
<CAPTION>

                                                                                                Class D
                                                                                                                For the
                                                                                                                Period
The following per share data and ratios have been derived                                 For the              Oct. 21,
from information provided in the financial statements.                                  Year Ended           1994++++ to
                                                                                       September 30,           Sept. 30,
Increase (Decrease) in Net Asset Value:                                            1997++        1996++          1995
<S>                 <S>                                                        <C>            <C>             <C>
Per Share           Net asset value, beginning of period                       $     7.94     $     7.80      $     7.59
Operating                                                                      ----------     ----------      ----------
Performance:        Investment income--net                                            .72            .72             .75
                    Realized and unrealized gain 
                    on investments--net                                               .36            .16             .21
                                                                               ----------     ----------      ----------
                    Total from investment operations                                 1.08            .88             .96
                                                                               ----------     ----------      ----------
                    Less dividends and distributions:
                      Investment income--net                                         (.72)          (.74)           (.75)
                      Realized gain on investments--net                                --             --+++++         --
                                                                               ----------     ----------      ----------
                    Total dividends and distributions                                (.72)          (.74)           (.75)
                                                                               ----------     ----------      ----------
                    Net asset value, end of period                             $     8.30     $     7.94      $     7.80
                                                                               ==========     ==========      ==========

Total Investment    Based on net asset value per share                             14.29%         11.82%          13.37%+++
Return:**                                                                      ==========     ==========      ==========

Ratios to Average   Expenses                                                         .76%           .76%            .81%*
Net Assets:                                                                    ==========     ==========      ==========
                    Investment income--net                                          8.95%          9.30%           9.70%*
                                                                               ==========     ==========      ==========

Supplemental        Net assets, end of period (in thousands)                   $  496,836     $  267,687      $  102,676
Data:                                                                          ==========     ==========      ==========
                    Portfolio turnover                                             38.58%         32.44%          24.58%
                                                                               ==========     ==========      ==========


              <FN>
                  ++Based on average shares outstanding during the year.
                ++++Commencement of operations.

                   *Annualized.
                  **Total investment returns exclude the effects of sales loads.
                 +++Aggregate total investment return.
               +++++Amount is less than $.01 per share.

                    See Notes to Financial Statements.
</TABLE>

                                      64
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997



NOTES TO FINANCIAL STATEMENTS

1. Significant Accounting Policies:
High Income Portfolio (the "Portfolio") is one of three portfolios in
Merrill Lynch Corporate Bond Fund, Inc. (the "Fund") which is registered 
under the Investment Company Act of 1940 as a diversified, open-end 
management investment company. The Portfolio offers four classes 
of shares under the Merrill Lynch Select Pricing SM System. Shares 
of Class A and Class D are sold with a front-end sales charge. 
Shares of Class B and Class C may be subject to a contingent 
deferred sales charge. All classes of shares have identical 
voting, dividend, liquidation and other rights and the same 
terms and conditions, except that Class B, Class C and
Class D Shares bear certain expenses related to the account
maintenance of such shares, and Class B and Class C Shares also bear
certain expenses related to the distribution of such shares. Each
class has exclusive voting rights with respect to matters relating
to its account maintenance and distribution expenditures. The
following is a summary of significant accounting policies followed
by the Portfolio.

(a) Valuation of investments--Portfolio securities which are traded
on stock exchanges are valued at the last sale price as of the close
of business on the day the securities are being valued, or lacking
any sales, at the mean between closing bid and asked prices.
Securities traded in the over-the-counter market are valued at the
mean of the most recent bid and ask prices as obtained from one or
more dealers that make markets in the securities. Portfolio
securities which are traded both in the over-the-counter market and
on a stock exchange are valued according to the broadest and most
representative market, and it is expected that for debt securities
this ordinarily will be the over-the-counter market. Short-term
securities are valued at amortized cost, which approximates market
value.

Options on debt securities, which are traded on exchanges, are
valued at the last asked price for options written and last bid
price for options purchased. Interest rate futures contracts and
options thereon, which are traded on exchanges, are valued at their
closing price at the close of such exchanges. Securities and assets
for which market quotations are not readily available are valued at
fair value as determined in good faith by or under the direction of
the Board of Directors of the Fund, including valuations furnished
by a pricing service retained by the Fund which may use a matrix
system for valuations.

(b) Derivative financial instruments--The Portfolio may engage in
various portfolio strategies to seek to increase its return by
hedging its portfolio against adverse movements in the equity, debt
and currency markets. Losses may arise due to changes in the value
of the contract or if the counterparty does not perform under the
contract.

* Financial futures contracts--The Portfolio may purchase or sell
interest rate futures contracts and options on such futures
contracts for the purpose of hedging the market risk on existing
securities or the intended purchase of securities. Futures contracts
are contracts for delayed delivery of securities at a specific
future date and at a specific price or yield. Upon entering into a
contract, the Portfolio deposits and maintains as collateral such
initial margin as required by the exchange on which the transaction
is effected. Pursuant to the contract, the Portfolio agrees to
receive from or pay to the broker an amount of cash equal to the
daily fluctuation in value of the contract. Such receipts or
payments are known as variation margin and are recorded by the
Portfolio as unrealized gains or losses. When the contract is
closed, the Portfolio records a realized gain or loss equal to the
difference between the value of the contract at the time it was
opened and the value at the time it was closed.

* Options--The Portfolio is authorized to purchase and write call
and put options. When the Portfolio writes an option, an amount
equal to the premium received by the Portfolio is reflected as an
asset and an equivalent liability. The amount of the liability is
subsequently marked to market to reflect the current market value of
the option written.

When a security is purchased or sold through an exercise of an
option, the related premium paid (or received) is added to (or
deducted from) the basis of the security acquired or deducted from
(or added to) the proceeds of the security sold. When an option
expires (or the Portfolio enters into a closing transaction), the
Portfolio realizes a gain or loss on the option to the extent of the
premiums received or paid (or loss or gain to the extent the cost of
the closing transaction exceeds the premium paid or received).

Written and purchased options are non-income producing investments.

(c) Income taxes--It is the Portfolio's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated
investment companies 

                                      65
<PAGE>
 
and to distribute substantially all of its taxable income to its shareholders.
Therefore, no Federal income tax provision is required.


Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


NOTES TO FINANCIAL STATEMENTS (continued)


(d) Security transactions and investment income--Security
transactions are recorded on the dates the transactions are entered
into (the trade dates). Dividend income is recorded on the ex-
dividend dates. Interest income (including amortization of discount)
is recognized on the accrual basis. Realized gains and losses on
security transactions are determined on the identified cost basis.

(e) Prepaid registration fees--Prepaid registration fees are charged
to expense as the related shares are issued.

(f) Dividends and distributions--Dividends from net investment
income are declared daily and paid monthly. Distributions of capital
gains are recorded on the ex-dividend dates. Distributions in excess
of net investment income are due primarily to differing tax
treatments for various security transactions.

(g) Reclassification--Generally accepted accounting principles
require that certain components of net assets be adjusted to reflect
permanent differences between financial and tax reporting.
Accordingly, current year's permanent book/tax differences of
$462,276 have been reclassified between undistributed net realized
capital gains and accumulated distributions in excess of net
investment income. These reclassifications have no effect on net
assets or net asset values per share.


2. Investment Advisory Agreement and
Transactions with Affiliates:
The Fund has entered into an Investment Advisory Agreement with Fund
Asset Management, L.P. ("FAM"). The general partner of FAM is
Princeton Services, Inc. ("PSI"), an indirect wholly-owned
subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the
limited partner. The Fund has also entered into a Distribution
Agreement and Distribution Plans with Merrill Lynch Funds
Distributor, Inc. ("MLFD" or "Distributor"), a wholly-owned
subsidiary of Merrill Lynch Group, Inc.

FAM is responsible for the management of the Fund's Portfolio and
provides the necessary personnel, facilities, equipment and certain
other services necessary to the operations of the Fund. For such
services, the Fund pays a monthly fee with respect to the Portfolio
based upon the aggregate average daily value of the Fund's net
assets at the following annual rates: 0.55% of the Fund's average
daily net assets not exceeding $250 million; 0.50% of average daily
net assets in excess of $250 million but not exceeding $500 million;
0.45% of average daily net assets in excess of $500 million but not
exceeding $750 million; and 0.40% of average daily net assets in
excess of $750 million. For the year ended September 30, 1997, the
aggregate average daily net assets of the Fund's three Portfolios
was approximately $8,540,033,000.

Pursuant to the Distribution Plans adopted by the Fund in accordance
with Rule 12b-1 under the Investment Company Act of 1940, the Fund
pays the Distributor ongoing account maintenance and distribution
fees. The fees are accrued daily and paid monthly at annual rates
based upon the average daily net assets of the shares of the
Portfolio as follows:

                                 Account        Distribution
                             Maintenance Fee         Fee

Class B                           0.25%             0.50%
Class C                           0.25%             0.55%
Class D                           0.25%              --

Pursuant to a sub-agreement with the Distributor, Merrill Lynch,
Pierce, Fenner & Smith Inc. ("MLPF&S"), a subsidiary of ML & Co.,
also provides account maintenance and distribution services to the
Fund. The ongoing account maintenance fee compensates the
Distributor and MLPF&S for providing account maintenance services to
Class B, Class C and Class D shareholders. The ongoing distribution
fee compensates the Distributor and MLPF&S for providing shareholder
and distribution-related services to Class B and Class C
shareholders.

For the year ended September 30, 1997, MLFD earned underwriting
discounts and direct commissions and MLPF&S earned dealer
concessions on sales of the Portfolio's Class A and Class D Shares
as follows:

                                    MLFD             MLPF&S

Class A                           $ 33,865         $  319,692
Class D                           $172,340         $1,643,816


                                      66
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


For the year ended September 30, 1997, MLPF&S received contingent
deferred sales charges of $7,544,693 and $293,302 relating to
transactions in Class B and Class C Shares of the Portfolio,
respectively, and front-end sales charge waivers of $111,064
relating to transactions in Class D Shares of the Portfolio.

Merrill Lynch Financial Data Services, Inc. ("MLFDS"), a wholly-
owned subsidiary of ML & Co., is the Fund's transfer agent.

During the year ended September 30, 1997, the Portfolio paid Merrill
Lynch Security Pricing Service, an affiliate of MLPF&S, $13,732 for
security price quotations to compute the net asset value of the
Portfolio.

Accounting services are provided to the Fund by FAM at cost.

Certain officers and/or directors of the Fund are officers and/or
directors of FAM, PSI, MLFD, MLFDS and/or ML & Co.


3. Investments:
Purchases and sales of investments, excluding short-term securities,
for the year ended September 30, 1997, were $3,387,217,649 and
$2,295,874,067, respectively.

Net realized and unrealized gains (losses) as of
September 30, 1997 were as follows:


                                Realized          Unrealized
                             Gains (Losses)         Gains

Long-term investments          $20,041,280     $  308,569,194
Short-term investments                (928)                --
                               -----------     --------------
Total                          $20,040,352     $  308,569,194
                               ===========     ==============

As of September 30, 1997, net unrealized appreciation for Federal
income tax purposes aggregated $295,844,113, of which $481,951,849
related to appreciated securities and $186,107,736 related to
depreciated securities. The aggregate cost of investments at
September 30, 1997 for Federal income tax purposes was
$7,325,091,332.


4. Capital Share Transactions:
Net increase in net assets derived from capital share transactions
was $1,535,324,290 and $1,376,309,947 for the years ended September
30, 1997 and September 30, 1996, respectively.

Transactions in capital shares for each class were as follows:


Class A Shares for the
Year Ended                                          Dollar
September 30, 1997                Shares            Amount

Shares sold                     31,134,080     $  250,373,771
Shares issued to shareholders
in reinvestment of dividends     5,178,555         41,693,780
                               -----------     --------------
Total issued                    36,312,635        292,067,551
Shares redeemed                (29,808,906)      (240,009,423)
                               -----------     --------------
Net increase                     6,503,729     $   52,058,128
                               ===========     ==============


Class A Shares for the
Year Ended                                          Dollar
September 30, 1996                Shares            Amount

Shares sold                     17,653,142     $  138,206,292
Shares issued to shareholders
in reinvestment of dividends
and distributions                5,577,702         43,685,460
                               -----------     --------------
Total issued                    23,230,844        181,891,752
Shares redeemed                (19,467,577)      (152,268,118)
                               -----------     --------------
Net increase                     3,763,267     $   29,623,634
                               ===========     ==============


Class B Shares for the
Year Ended                                          Dollar
September 30, 1997                Shares            Amount

Shares sold                    201,694,285     $1,624,806,467
Shares issued to shareholders
in reinvestment of dividends    22,790,352        183,793,349
                               -----------     --------------
Total issued                   224,484,637      1,808,599,816
Automatic conversion of
shares                          (2,850,390)       (22,812,891)
Shares redeemed                (95,044,774)      (764,885,115)
                               -----------     --------------
Net increase                   126,589,473     $1,020,901,810
                               ===========     ==============


Class B Shares for the
Year Ended                                          Dollar
September 30, 1996                Shares            Amount

Shares sold                    182,572,014     $1,430,080,855
Shares issued to shareholders
in reinvestment of dividends
and distributions               19,579,491        153,319,965
                               -----------     --------------
Total issued                   202,151,505      1,583,400,820
Automatic conversion of
shares                          (2,223,768)       (17,369,063)
Shares redeemed                (77,015,717)      (603,076,378)
                               -----------     --------------
Net increase                   122,912,020     $  962,955,379
                               ===========     ==============


                                      67
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc., High Income Portfolio
September 30, 1997


NOTES TO FINANCIAL STATEMENTS (concluded)


Class C Shares for the
Year Ended                                          Dollar
September 30, 1997                Shares            Amount

Shares sold                     44,892,704     $  362,128,191
Shares issued to shareholders
in reinvestment of dividends     2,808,746         22,682,139
                               -----------     --------------
Total issued                    47,701,450        384,810,330
Shares redeemed                (16,444,400)      (132,540,144)
                               -----------     --------------
Net increase                    31,257,050     $  252,270,186
                               ===========     ==============


Class C Shares for the
Year Ended                                          Dollar
September 30, 1996                Shares            Amount

Shares sold                     35,104,878     $  275,231,433
Shares issued to shareholders
in reinvestment of dividends
and distributions                1,535,893         12,030,927
                               -----------     --------------
Total issued                    36,640,771        287,262,360
Shares redeemed                 (8,274,123)       (64,777,972)
                               -----------     --------------
Net increase                    28,366,648     $  222,484,388
                               ===========     ==============


Class D Shares for the Year                         Dollar
Ended September 30, 1997          Shares            Amount

Shares sold                     35,702,960     $  287,604,383
Automatic conversion of
shares                           2,846,330         22,812,891
Shares issued to shareholders
in reinvestment of dividends     2,248,145         18,168,882
                               -----------     --------------
Total issued                    40,797,435        328,586,156
Shares redeemed                (14,668,105)      (118,491,990)
                               -----------     --------------
Net increase                    26,129,330     $  210,094,166
                               ===========     ==============


Class D Shares for the Year                         Dollar
Ended September 30, 1996          Shares            Amount

Shares sold                     45,431,713      $ 356,012,837
Automatic conversion of
shares                           2,222,223         17,369,063
Shares issued to shareholders
in reinvestment of dividends
and distributions                  997,894          7,813,928
                               -----------     --------------
Total issued                    48,651,830        381,195,828
Shares redeemed                (28,082,126)      (219,949,282)
                               -----------     --------------
Net increase                    20,569,704     $  161,246,546
                               ===========     ==============


                                      68
<PAGE>
 
INDEPENDENT AUDITORS' REPORT
 
The Board of Directors and Shareholders,
Merrill Lynch Corporate Bond Fund, Inc.:
   
We have audited the accompanying statements of assets and liabilities,
including the schedule of investments, of the Investment Grade and Intermediate
Term Portfolios of Merrill Lynch Corporate Bond Fund, Inc. as of September 30,
1997, the related statements of operations for the year then ended, and changes
in net assets for each of the years in the two-year period then ended, and the
financial highlights for each of the years in the five-year period then ended.
These financial statements and the financial highlights are the responsibility
of the Fund's management. Our responsibility is to express an opinion on these
financial statements and the financial highlights based on our audits.     
   
We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and the financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned at
September 30, 1997 by correspondence with the custodian and brokers. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.     
   
In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of the Investment
Grade and Intermediate Term Portfolios of Merrill Lynch Corporate Bond Fund,
Inc. as of September 30, 1997, the results of their operations, the changes in
their net assets, and the financial highlights for the respective stated
periods in conformity with generally accepted accounting principles.     
 
Deloitte & Touche LLP
Princeton, New Jersey
   
November 18, 1997     
 
                                       69
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes                                                                               Investment Grade Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
US Government                                   United States Treasury
Obligations--6.0%                               Bonds & Notes:
                    AAA    Aaa    $19,300,000       6.375% due 5/15/1999                $   19,345,234    $   19,471,963
                    AAA    Aaa      2,500,000       6.375% due 8/15/2002                     2,494,531         2,538,275
                    AAA    Aaa     11,000,000       6.25% due 8/31/2002                     11,002,310        11,099,660
                    AAA    Aaa      9,000,000       5.75% due 8/15/2003                      8,744,766         8,860,770
                    AAA    Aaa      8,000,000       6.50% due 5/15/2005                      8,032,335         8,170,000
                    AAA    Aaa     20,500,000       6.125% due 8/15/2007                    20,286,580        20,509,635
                    AAA    Aaa      3,000,000       6.625% due 2/15/2027                     2,974,687         3,071,730
                                                                                        --------------    --------------
                                                                                            72,880,443        73,722,033

Asset-Backed        AAA    Aaa      4,350,000   Arcadia Automobile Receivables
Securities++--                                      Trust, 6.10% due 6/15/2000               4,349,153         4,366,661
7.1%                AAA    Aaa     26,905,000   Banc One, Master Trust (Series B),
                                                    7.55% due 12/15/1999                    27,427,315        26,955,312
                                                Citibank Credit Card Master Trust I:
                    AAA    Aaa      8,000,000       6.35% due 8/15/2002                      7,993,600         8,038,750
                    AAA    Aaa     10,000,000       5.838% due 12/10/2008 (a)                9,996,100         9,984,300
                    AAA    Aaa      6,000,000   First Bank Corporate Card Master Trust,
                                                    6.40% due 2/15/2003                      5,992,634         6,032,580
                    AAA    Aaa     16,970,541   GMAC Grantor Trust, 6.50% due 4/15/2002     16,965,809        17,117,676
                    AAA    Aaa     15,000,000   Household Affinity Credit Card,
                                                    Master Trust, 5.752% due
                                                    8/16/2004 (a)                           15,000,000        15,003,000
                                                                                        --------------    --------------
                                                                                            87,724,611        87,498,279

Banking--9.0%       BBB+   A3       6,250,000   BB&T Corporation, 7.25% due 6/15/2007        6,220,813         6,436,000
                                                BankAmerica Corp.:
                    A+     Aa3      3,000,000       6.65% due 5/01/2001                      2,997,090         3,031,290
                    A+     Aa3      3,000,000       7.125% due 5/12/2005                     3,087,560         3,072,000
                    BBB+   Aa3      5,000,000   Chase Capital II, 6.218% due
                                                    2/01/2027 (a)                            4,886,400         4,864,775
                    A-     A1      10,300,000   Chase Manhattan Bank Corporation,
                                                    8.65% due 2/13/1999                     10,805,215        10,668,534
                    A-     A1      10,000,000   First Bank System, Inc., 6.375%
                                                    due 3/15/2001                            9,880,007        10,021,400
                    A      A2       3,000,000   First Chicago Corp., 9% due 6/15/1999        3,182,940         3,135,570
                    A-     A1      12,900,000   First Chicago NBD Capital I, 6.268%
                                                    due 2/01/2027(a)                        12,765,788        12,582,002
                    BBB    A2       4,750,000   Fleet Capital Trust II, 7.92%
                                                    due 12/11/2026                           4,690,720         4,805,908
                    A-     A3       5,000,000   Golden West Financial Corp., 9.15%
                                                    due 5/23/1998                            5,678,700         5,098,050
                    BBB+   A2      14,000,000   HSBC Americas Inc., 7.808% due
                                                    12/15/2026 (b)                          13,838,440        14,010,304
                    BBB+   A2       6,000,000   Mellon Capital I, 7.72% due 12/01/2026       6,000,000         5,988,360
                                                Norwest Corp.:
                    AA-    Aa3     17,000,000       6.25% due 4/15/1999                     16,944,240        17,075,820
                    AA-    Aa3      3,500,000       6.75% due 5/12/2000                      3,494,785         3,550,400
                    BBB+   A1       5,500,000   Wells Fargo Capital I, 7.96%
                                                    due 12/15/2026                           5,401,385         5,589,870
                                                                                        --------------    --------------
                                                                                           109,874,083       109,930,283

Canadian                                        Province of Quebec (Canada)(1):
Provinces*--1.9%    A+     A2       7,035,000       7.50% due 7/15/2002                      7,440,311         7,322,380
                    A+     A2       6,000,000       8.80% due 4/15/2003                      6,774,360         6,622,560
                    A+     A2       4,500,000       13% due 10/01/2013                       5,706,285         4,995,000
                    A+     A2       4,000,000       7.125% due 2/09/2024                     3,701,900         3,933,400
                                                                                        --------------    --------------
                                                                                            23,622,856        22,873,340

Federal             AAA    Aaa     15,000,000   Federal National Mortgage
Agencies--1.3%                                      Association, 7.85% due 9/10/2004        14,817,438        15,442,950
</TABLE>

                                      70
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes (continued)                                                                   Investment Grade Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
Finance--3.4%       A+     A2     $ 1,300,000   American General Finance Corp.,
                                                    7.70% due 11/15/1997                $    1,322,074    $    1,302,262
                                                Associates Corp. of North America:
                    AA-    Aa3      6,000,000       8.375% due 1/15/1998                     6,019,320         6,042,540
                    AA-    Aa3      2,000,000       5.25% due 9/01/1998                      1,939,180         1,987,320
                    AA-    Aa3      1,500,000       7.25% due 9/01/1999                      1,481,430         1,529,730
                    AA-    Aa3      5,000,000       6.375% due 6/15/2000                     5,008,300         5,018,850
                    A      A2       9,500,000   Beneficial Corporation, 6.80%
                                                    due 9/16/2003                            9,500,000         9,605,915
                    A      Aa3      1,250,000   CIT Capital Trust I, 7.70% due
                                                    2/15/2027                                1,244,300         1,242,621
                    A+     Aa3     10,000,000   CIT Group Holdings, Inc., 6.10%
                                                    due 8/09/1999                            9,984,200         9,997,200
                    A+     A1       5,000,000   Commercial Credit Co., 6.45%
                                                    due 7/01/2002                            5,009,800         4,995,150
                                                                                        --------------    --------------
                                                                                            41,508,604        41,721,588

Finance--                                       Bear Stearns Companies, Inc.:
Other--             A      A2      10,000,000       6.50% due 7/05/2000                      9,981,800        10,054,500
10.7%               A      A2       2,000,000       6.75% due 5/01/2001                      1,993,680         2,021,460
                    A      A2      11,650,000       6.70% due 8/01/2003                     10,667,430        11,676,911
                    A      A2       3,000,000       8.75% due 3/15/2004                      3,224,430         3,323,610
                    A+     A1       3,500,000   Dean Witter, Discover & Co., 6.75%
                                                    due 8/15/2000                            3,486,805         3,541,230
                    A-     Baa1    11,000,000   Donaldson, Lufkin & Jenrette Inc.,
                                                    6.875% due 11/01/2005                   10,952,615        11,032,670
                    A      A2       7,500,000   Equitable Life Assurance Society
                                                    of the US, 7.70% due 12/01/2015 (b)      7,448,310         7,860,000
                    AA     Aa2      3,950,000   MBIA, Inc., 7.15% due 7/15/2027              3,940,323         3,995,306
                    BBB+   Baa2     5,000,000   MBNA Corporation, 6.068% due
                                                    6/17/2002 (a)                            5,000,000         4,985,600
                    A+     A1       9,200,000   Morgan Stanley Group Inc., 6.875%
                                                    due 3/01/2007                            9,166,972         9,257,316
                    BBB+   Baa1     7,500,000   PaineWebber Group Inc., 7.99%
                                                    due 6/09/2017                            7,500,000         7,861,800
                                                Salomon Inc.:
                    BBB    Baa1    20,000,000       6.50% due 3/01/2000                     20,000,000        20,058,400
                    BBB    Baa1    10,000,000       7.20% due 2/01/2004                      9,991,700        10,235,600
                                                Smith Barney Holdings, Inc.:
                    A      A2       7,000,000       6.50% due 10/15/2002                     6,961,080         6,998,110
                    A      A2       2,850,000       7.375% due 5/15/2007                     2,847,463         2,951,175
                                                The Travelers Corp.:
                    AA-    Aa3      3,000,000       9.50% due 3/01/2002                      3,163,980         3,342,990
                    AA-    Aa3     10,800,000       7.875% due 5/15/2025                    10,845,324        11,536,452
                                                                                        --------------    --------------
                                                                                           127,171,912       130,733,130

Industrial--        A+     A1       3,000,000   Anheuser-Busch Cos., Inc., 8.75%
Consumer--1.8%                                      due 12/01/1999                           3,367,590         3,155,430
                    BBB    Baa2     9,000,000   Nabisco, Inc., 7.55% due 6/15/2015           8,981,960         9,223,200
                    A      A2       9,500,000   Philip Morris Companies, Inc., 9%
                                                    due 1/01/2001                            9,698,815        10,147,710
                                                                                        --------------    --------------
                                                                                            22,048,365        22,526,340

Industrial--        BBB    Baa3     5,500,000   Arkla Inc., 8.875% due 7/15/1999             5,819,675         5,746,785
Energy--2.7%                                    BP America Inc.:
                    AA     Aa2      4,075,000       9.375% due 11/01/2000                    4,488,287         4,436,086
                    AA     Aa2     11,000,000       10% due 7/01/2018                       11,869,080        11,777,040
                    BBB    Baa3     5,000,000   Noram Energy Corp., 7.50%
                                                    due 8/01/2000                            5,113,400         5,139,500
                    A+     A1       5,500,000   Texaco Capital Inc., 9% due
                                                    12/15/1999                               6,215,190         5,818,450
                                                                                        --------------    --------------
                                                                                            33,505,632        32,917,861
</TABLE>

                                      71
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes (continued)                                                                   Investment Grade Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
Industrial--        A      A3     $ 7,000,000   Chrysler Corp., 7.45% due 3/01/2027     $    6,965,980    $    7,189,910
Manufacturing--     AA-    Aa3      4,500,000   du Pont (E.I.) de Nemours & Co.,
10.4%                                               8.25% due 1/15/2022                      4,676,445         4,821,660
                                                Ford Motor Credit Co.:
                    A+     A1       5,000,000       7% due 9/25/2001                         4,980,100         5,109,500
                    A+     A1       5,000,000       8% due 6/15/2002                         5,286,350         5,310,050
                    A+     A1       5,000,000       7.50% due 6/15/2004                      5,140,200         5,242,300
                    A+     A1       1,000,000       7.75% due 3/15/2005                        999,090         1,059,660
                                                General Motors Acceptance Corp.:
                    A-     A3       8,000,000       7.60% due 1/20/1998                      7,829,600         8,038,880
                    A-     A3       6,100,000       7.125% due 5/11/1998                     6,168,808         6,142,334
                    A-     A3       4,000,000       6.625% due 9/19/2002                     3,915,080         4,022,920
                    A-     A3       7,000,000       7.125% due 5/01/2003                     6,964,230         7,200,060
                                                Lockheed Martin Corp.:
                    BBB+   A3      10,000,000       6.625% due 6/15/1998                     9,998,700        10,050,900
                    BBB+   A3       8,750,000       6.55% due 5/15/1999                      8,745,800         8,809,412
                    BBB+   A3       5,000,000       6.85% due 5/15/2001                      4,995,950         5,069,800
                    BBB+   A3      11,000,000   Loral Corporation, 8.375%
                                                    due 6/15/2024                           11,056,040        12,493,360
                    BBB+   A3       4,000,000   Martin Marietta Corp., 7.375%
                                                    due 4/15/2013                            3,846,440         4,119,080
                                                McDonnell Douglas Financial Corp.:
                    AA+    Baa2     7,500,000       6.13% due 12/23/1998                     7,484,550         7,404,150
                    AA+    Baa2     5,000,000       6.30% due 10/20/1999                     5,029,550         4,950,500
                    BBB    Baa1     3,000,000   Raytheon Co., 7.20% due 8/15/2027            2,995,560         2,994,360
                    BBB    Baa3    17,000,000   Seagate Technology, Inc., 7.125%
                                                    due 3/01/2004                           16,970,250        17,304,810
                                                                                        --------------    --------------
                                                                                           124,048,723       127,333,646

Industrial--        A+     A1      10,000,000   Bass America, Inc., 8.125%
Services--15.2%                                     due 3/31/2002                           10,250,610        10,673,800
                    A      A2       8,000,000   Carnival Cruise Lines, Inc., 7.70%
                                                    due 7/15/2004                            8,076,380         8,457,680
                    BBB    Baa2    10,000,000   Circus Circus Enterprises, Inc.,
                                                    6.70% due 11/15/2096                     9,977,700         9,864,400
                                                Dillard Department Stores, Inc.:
                    A+     A2       4,000,000       7.375% due 6/15/1999                     4,254,860         4,080,680
                    A+     A2       5,000,000       9.125% due 8/01/2011                     6,054,000         5,996,700
                    A+     A1       2,000,000   Electronic Data Systems Corp., 6.85%
                                                    due 5/15/2000 (b)                        1,998,420         2,032,396
                    AAA    Aaa      7,000,000   Johnson & Johnson, 8.72% due
                                                    11/01/2024                               7,057,420         7,992,110
                                                News American Holdings, Inc.:
                    BBB    Baa3     4,000,000       9.125% due 10/15/1999                    4,298,640         4,213,480
                    BBB    Baa3    12,445,000       8.625% due 2/01/2003                    13,585,486        13,472,335
                    BBB    Baa3    10,000,000       8% due 10/17/2016                        9,699,900        10,230,700
                                                Oracle Corporation:
                    BBB+   Baa2     5,000,000       6.72% due 2/15/2004                      5,000,000         4,990,800
                    BBB+   Baa2     4,000,000       6.91% due 2/15/2007                      4,000,000         4,026,040
                    BBB    Baa2     7,200,000   Safeway, Inc., 7% due 9/15/2007              7,196,760         7,270,704
                                                Sears, Roebuck & Co.:
                    A-     A2       5,000,000       9.25% due 4/15/1998                      5,712,125         5,088,650
                    A-     A2       8,785,000       8.45% due 11/01/1998                     9,709,797         9,001,814
                    A-     A2       8,000,000       6.82% due 10/17/2002                     8,016,320         8,112,960
                                                Service Corporation International:
                    BBB+   Baa1     7,000,000       6.75% due 6/01/2001                      6,978,580         7,074,060
                    BBB+   Baa1     9,500,000       7.20% due 6/01/2006                      9,235,900         9,736,265
</TABLE>

                                      72
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes (continued)                                                                   Investment Grade Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
Industrial--                                    Time Warner Entertainment Co.:
Services            BBB-   Baa3  $  6,000,000       10.15% due 5/01/2012                $    7,356,180    $    7,533,480
(concluded)         BBB-   Baa3     9,900,000       8.375% due 3/15/2023                    10,525,871        10,632,600
                    AA     Aa2     14,345,000   Wal-Mart Stores, Inc., 8.50% due
                                                    9/15/2024                               14,488,240        15,905,879
                                                Walt Disney Co.:
                    A      A2       5,500,000       6.375% due 3/30/2001                     5,500,000         5,527,995
                    A      A2      14,678,505       6.85% due 1/10/2007 (b)++               14,668,671        14,819,419
                                                                                        --------------    --------------
                                                                                           183,641,860       186,734,947

Industrial--        BBB    Baa2    11,500,000   CSX Corporation, 7.95% due
Transporation--                                     5/01/2027 (b)                           11,440,430        12,376,507
4.2%                BBB    Baa2     9,000,000   Federal Express Corporation, 9.65%
                                                    due 6/15/2012                           10,137,590        11,102,220
                                                Norfolk Southern Corporation:
                    BBB+   Baa1     1,000,000       6.95% due 5/01/2002                        998,480         1,020,590
                    BBB+   Baa1     4,000,000       7.35% due 5/15/2007                      3,997,240         4,157,880
                    BBB+   Baa1     5,500,000       7.80% due 5/15/2027                      5,493,070         5,890,335
                                                Southwest Airlines, Inc.:
                    A-     A3      10,000,000       9.40% due 7/01/2001                     11,326,040        10,955,300
                    A-     A3       2,000,000       8% due 3/01/2005                         1,989,220         2,147,920
                    A-     A3       3,000,000       7.875% due 9/01/2007                     2,983,950         3,238,290
                                                                                        --------------    --------------
                                                                                            48,366,020        50,889,042

Utilities--         A+     A2       8,700,000   ALLTEL Corporation, 6.75%
Communications--                                    due 9/15/2005                            8,566,020         8,751,939
3.9%                                            GTE Corp.:
                    A      A3       3,000,000       8.85% due 3/01/1998                      3,081,000         3,035,730
                    A      A3       7,500,000       9.375% due 12/01/2000                    8,235,170         8,156,400
                    A      A3       4,000,000       9.10% due 6/01/2003                      4,242,720         4,484,600
                    A      A3       3,000,000       10.30% due 11/15/2017                    3,285,270         3,167,100
                    AA     Aa3      2,000,000   Southwestern Bell Telecommunications
                                                    Corp., 6.125% due 3/01/2000              2,011,250         1,999,080
                                                US West Capital Funding, Inc.:
                    BBB+   Baa1     5,000,000       6.85% due 1/15/2002                      4,998,050         5,063,950
                    BBB+   Baa1     3,500,000       7.30% due 1/15/2007                      3,608,640         3,579,100
                    BBB+   Baa1     6,000,000       7.90% due 2/01/2027                      6,000,000         6,322,440
                    BBB+   Baa1     3,000,000       7.95% due 2/01/2097                      2,970,000         3,160,260
                                                                                        --------------    --------------
                                                                                            46,998,120        47,720,599

Utilities--         BBB+   Baa1    13,500,000   Arizona Public Service Co., 7.625%
Electric--6.0%                                      due 3/15/1998                           13,708,305        13,611,915
                    A+     Aa3      6,675,000   Duke Power Co., 8% due 11/01/1999            6,666,714         6,916,168
                    A+     A1       2,000,000   Georgia Power Co., 6.125% due
                                                    9/01/1999                                1,961,420         2,000,600
                    AA-    Aa3      5,000,000   Northern States Power Company,
                                                    7.125% due 7/01/2025                     5,305,900         5,101,700
                                                Pennsylvania Power & Light Co.:
                    A-     A3       6,000,000       5.50% due 4/01/1998                      5,972,220         5,992,020
                    A-     A3       3,000,000       6.875% due 2/01/2003                     3,048,870         3,050,850
                                                Public Service Electric & Gas Co.:
                    A-     A3       7,000,000       7.125% due 11/01/1997                    7,058,870         7,005,530
                    A-     A3      10,000,000       6.50% due 6/01/2000                      9,995,705        10,082,100
                    AA-    A1       5,000,000   TECO Energy, Inc., 9.27% due
                                                    6/12/2000                                5,000,000         5,370,050
                    BBB    Baa2     5,000,000   Texas Utilities Electric Company,
                                                    8.175% due 1/30/2037                     5,000,000         5,240,350
                    A      A2       8,500,000   Virginia Electric & Power Co., 8.625%
                                                    due 10/01/2024                           8,377,160         9,305,885
                                                                                        --------------    --------------
                                                                                            72,095,164        73,677,168
</TABLE>

                                      73
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes (concluded)                                                                   Investment Grade Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
Yankee              AA-    Aa2   $  6,000,000   ABN AMRO Bank N.V., 7.125%
Corporates*--                                       due 6/18/2007 (2)                   $    5,997,060    $    6,177,660
10.5%               A+     A1       6,000,000   Australia & New Zealand Banking
                                                    Group Ltd., 7.55% due
                                                    9/15/2006 (2)                            5,990,880         6,292,320
                    BBB    Baa1     5,075,000   China International Trust, 9%
                                                    due 10/15/2006 (2)                       5,544,336         5,622,136
                                                Enersis S.A.(5):
                    A-     Baa1     2,500,000       6.90% due 12/01/2006                     2,493,550         2,499,150
                    A-     Baa1     7,000,000       7.40% due 12/01/2016                     6,963,040         7,032,550
                    A-     Baa1     4,000,000       6.60% due 12/01/2026                     3,992,400         3,978,800
                    BBB+   Baa3     9,800,000   Fairfax Financial Holdings Ltd.,
                                                    7.75% due 7/15/2037 (2)(b)               9,751,098         9,836,260
                                                Ford Capital B.V. (2):
                    A+     A1      10,000,000       9.875% due 5/15/2002                    10,531,200        11,328,000
                    A+     A1       3,995,000       9.50% due 6/01/2010                      4,430,215         4,837,905
                    A+     A2       4,000,000   Grand Metropolitan Investment Corp.,
                                                    6.50% due 9/15/1999 (2)                  4,000,000         4,031,760
                    A-     A3       6,000,000   HSBC Americas Inc., 7% due
                                                    11/01/2006 (2)                           5,949,600         6,058,380
                                                Hutchison Whampoa Finance (2):
                    A+     A3       7,000,000       6.95% due 8/01/2007                      7,004,020         6,899,900
                    A+     A3       6,500,000       7.45% due 8/01/2017 (b)                  6,563,055         6,445,894
                    A-     A3       5,000,000   Israel Electric Corp. Ltd., 7.25%
                                                    due 12/15/2006 (5)(b)                    4,990,500         5,079,615
                    A+     A3       5,500,000   Mass Transit Railway Corp., 7.25%
                                                    due 10/01/2005 (6)                       5,663,700         5,608,185
                    A      Aa3      2,000,000   Midland Bank PLC, 7.625% due
                                                    6/15/2006 (2)                            1,995,240         2,110,320
                                                Petroliam Nasional BHD(5)(b):
                    A+     A1      12,000,000       6.875% due 7/01/2003                    11,929,530        11,856,000
                    A+     A1       6,500,000       7.125% due 10/18/2006                    6,482,515         6,416,917
                    A+     A2       5,000,000   Pohang Iron and Steel Industries
                                                    Co., Ltd., 7.125% due 7/15/2004 (4)      4,987,250         4,901,250
                    BBB+   Baa2     2,000,000   Saga Petroleum ASA, 7.25% due
                                                    9/23/2027 (5)                            1,979,980         1,972,460
                    BBB+   A3       9,500,000   State Development Bank of China,
                                                    7.375% due 2/01/2007 (2)                 9,496,865         9,601,745
                                                                                        --------------    --------------
                                                                                           126,736,034       128,587,207

Yankee              AAA    Aaa      4,000,000   Export-Import Bank of Japan, 8.35%
Sovereign*--0.6%                                    due 12/01/1999 (3)                       4,226,640         4,178,680
                    AA-    A1       4,000,000   Korea Development Bank, 6.625% due
                                                    11/21/2003 (2)                           4,031,560         3,895,000
                                                                                        --------------    --------------
                                                                                             8,258,200         8,073,680

                                                Total Investments in
                                                Bonds & Notes--94.7%                     1,143,298,065     1,160,382,093
</TABLE>

                                      74
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (concluded)
<CAPTION>
                                       Face                                                                  Value
                                      Amount             Issue                              Cost           (Note 1a)

Short-Term Securities                                                                       Investment Grade Portfolio
<S>                             <C>             <S>                                     <C>               <C>
Repurchase                      $  49,199,000   UBS Securities Funding Inc.,
Agreements**--4.0%                                  purchased on 9/30/1997 to
                                                    yield 6.06% to 10/01/1997           $   49,199,000    $   49,199,000

                                                Total Investments in
                                                Short-Term Securities--4.0%                 49,199,000        49,199,000

Total Investments--98.7%                                                                $1,192,497,065     1,209,581,093
                                                                                        ==============
Other Assets Less Liabilities--1.3%                                                                           15,432,333
                                                                                                          --------------
Net Assets--100.0%                                                                                        $1,225,013,426
                                                                                                          ==============


<FN>
  *Corresponding industry groups for foreign securities which are
   denominated in US dollars:
   (1)Government Entity; Guaranteed by the Province.
   (2)Financial Institution.
   (3)Government Entity; Guaranteed by Japan.
   (4)Industrial; Metals.
   (5)Industrial.
   (6)Transportation.

   See Notes to Financial Statements.

 **Repurchase Agreements are fully collateralized by US Government
   and Agency Obligations.
 ++Subject to principal paydowns.
(a)Floating Rate Note.
(b)The security may be offered and sold to "qualified institutional
   buyers" under Rule 144A of the Securities Act of 1933.

Ratings of issues shown have not been audited by Deloitte & Touche LLP.
</TABLE>



<TABLE>
SCHEDULE OF INVESTMENTS
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes                                                                              Intermediate Term Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
US Government                                   United States Treasury Bonds & Notes:
Obligations--6.2%   AAA    Aaa    $ 3,000,000       7.75% due 12/31/1999                $    3,122,344    $    3,118,110
                    AAA    Aaa      1,000,000       5.875% due 2/15/2000                       989,375         1,000,160
                    AAA    Aaa      2,000,000       5.75% due 10/31/2000                     1,963,750         1,990,320
                    AAA    Aaa      4,500,000       5.625% due 2/28/2001                     4,383,281         4,455,720
                    AAA    Aaa      1,000,000       8% due 5/15/2001                         1,070,000         1,065,620
                    AAA    Aaa      1,000,000       6.50% due 5/15/2005                      1,003,420         1,021,250
                    AAA    Aaa     11,800,000       6.125% due 8/15/2007                    11,609,838        11,805,546
                                                                                        --------------    --------------
                                                                                            24,142,008        24,456,726

Asset-Backed        AAA    Aaa      2,000,000   First Bank Corporate Card Master
Securities++--0.5%                                  Trust, 6.40% due 2/15/2003               1,997,545         2,010,860

Banking--16.4%      BBB+   A3       4,000,000   BB&T Corporation, 7.25% due 6/15/2007        3,981,320         4,119,040
                    A      A2       3,500,000   Bank of New York Company, Inc. (The),
                                                    7.875% due 11/15/2002                    3,873,450         3,714,130
                                                BankAmerica Corp.:
                    A      A1       4,000,000       7.50% due 10/15/2002                     4,268,880         4,171,720
                    A+     Aa3      3,000,000       7.125% due 5/12/2005                     2,956,500         3,072,000
                    A      A2       9,000,000   First Chicago Corp., 9% due 6/15/1999        9,548,820         9,406,710
                    A-     A3       6,000,000   Mellon Financial, 6.875% due 3/01/2003       5,483,220         6,078,780
                    A+     A1      11,500,000   NationsBank Corporation, 6.65% due
                                                    4/09/2002                               11,423,540        11,579,120
                                                Norwest Corp.:
                    AA-    Aa3      5,000,000       6.25% due 4/15/1999                      4,983,600         5,022,300
                    AA-    Aa3      2,000,000       6.125% due 10/15/2000                    1,996,440         1,996,440
                    A+     A1       1,000,000       6.625% due 3/15/2003                     1,003,060         1,004,210
                    AA+    Aa2      5,000,000   Wachovia Corporation, 6% due 3/15/1999       4,890,950         5,012,900
                    BBB+   A3       9,000,000   Washington Mutual Inc., 7.25% due
                                                    8/15/2005                                8,930,520         9,206,730
                                                                                        --------------    --------------
                                                                                            63,340,300        64,384,080
</TABLE>

                                      75
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes (continued)                                                                  Intermediate Term Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
Canadian                                        Province of Quebec (Canada)(1):
Provinces*--2.7%    A+     A2     $ 5,000,000       7.50% due 7/15/2002                 $    5,296,190    $    5,204,250
                    A+     A2       5,000,000       8.80% due 4/15/2003                      5,538,670         5,518,800
                                                                                        --------------    --------------
                                                                                            10,834,860        10,723,050

Federal             AAA    Aaa      2,500,000   Federal National Mortgage
Agencies--0.7%                                      Association, 7.85% due 9/10/2004         2,496,484         2,573,825

Finance--3.1%       A      A2       9,250,000   Beneficial Corporation, 6.80% due
                                                    9/16/2003                                9,250,000         9,353,128
                    A+     A1       3,000,000   Commercial Credit Company, 6.45%
                                                    due 7/01/2002                            3,005,880         2,997,090
                                                                                        --------------    --------------
                                                                                            12,255,880        12,350,218

Finance--           A      Baa2    11,580,000   Bankers Trust New York Corporation,
Other--9.2%                                         7.625% due 8/15/2005                    11,797,083        12,106,543
                                                Bear Stearns Companies, Inc.:
                    A      A2       2,000,000       6.50% due 7/05/2000                      1,996,360         2,010,900
                    A      A2       3,000,000       8.75% due 3/15/2004                      3,224,430         3,323,610
                    A+     A1       6,250,000   Dean Witter, Discover & Co., 6.75%
                                                    due 8/15/2000                            6,226,438         6,323,625
                                                Salomon Inc.:
                    BBB    Baa1     5,000,000       6.50% due 3/01/2000                      5,000,000         5,014,600
                    BBB    Baa1     4,000,000       7.20% due 2/01/2004                      3,996,680         4,094,240
                    A      A2       1,000,000   Smith Barney Holdings Inc., 7.375%
                                                    due 5/15/2007                              999,110         1,035,500
                    AA-    Aa3      2,000,000   The Travelers Corp., 9.50%
                                                    due 3/01/2002                            2,168,400         2,228,660
                                                                                        --------------    --------------
                                                                                            35,408,501        36,137,678

Industrial--        A+     A1       5,481,000   Anheuser-Busch Cos., Inc., 8.75%
Consumer--4.5%                                      due 12/01/1999                           6,189,909         5,764,971
                                                Nabisco, Inc.:
                    BBB    Baa2     5,000,000       6.70% due 6/15/2002                      4,997,050         5,020,100
                    BBB    Baa2     3,000,000       6.85% due 6/15/2005                      2,994,300         3,005,760
                    A      A2       3,500,000   Philip Morris Cos., Inc., 9%
                                                    due 1/01/2001                            3,576,195         3,738,630
                                                                                        --------------    --------------
                                                                                            17,757,454        17,529,461

Industrial--                                    Texaco Capital Inc.:
Energy--1.1%        A+     A1       2,000,000       6.875% due 7/15/1999                     1,996,120         2,028,260
                    A+     A1       2,000,000       9% due 12/15/1999                        2,342,460         2,115,800
                                                                                        --------------    --------------
                                                                                             4,338,580         4,144,060

Industrial--        BBB+   A3       4,000,000   Applied Materials Inc., 6.65%
Manufacturing--                                     due 9/05/2000                            4,000,000         4,030,200
11.7%               A+     A1       5,000,000   Ford Motor Credit Co., 7.75%
                                                    due 3/15/2005                            4,995,450         5,298,300
                                                General Motors Acceptance Corp.:
                    A-     A3       2,000,000       7.60% due 1/20/1998                      1,957,400         2,009,720
                    A-     A3       5,000,000       6.625% due 10/01/2002                    4,991,000         5,037,750
                    A-     A3       2,000,000       7.125% due 5/01/2003                     1,989,780         2,057,160
                                                Lockheed Martin Corp.:
                    BBB+   A3       1,000,000       6.625% due 6/15/1998                       999,870         1,005,090
                    BBB+   A3       2,500,000       6.55% due 5/15/1999                      2,498,800         2,516,975
                    BBB+   A3       8,000,000       6.85% due 5/15/2001                      8,018,810         8,111,680
                    AA+    Baa2     5,000,000   McDonnell Douglas Corporation, 6.30%
                                                    due 10/20/1999                           5,029,550         4,950,500
                    BBB    Baa1     5,000,000   Raytheon Company, 6.75% due 8/15/2007        4,987,750         4,991,900
                    BBB    Baa3     6,000,000   Seagate Technology, Inc., 7.125%
                                                    due 3/01/2004                            5,989,500         6,107,580
                                                                                        --------------    --------------
                                                                                            45,457,910        46,116,855
</TABLE>

                                      76
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (continued)
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes (continued)                                                                  Intermediate Term Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
Industrial--        A+     A1      $3,000,000   Bass America, Inc., 6.625%
Services--17.8%                                     due 3/01/2003                       $    2,825,520    $    3,020,970
                    A      A2       6,000,000   Carnival Cruise Lines, Inc.,
                                                    7.70% due 7/15/2004                      5,952,060         6,343,260
                    BBB-   Baa3     4,000,000   Comcast Corporation, 8.375%
                                                    due 5/01/2007 (a)                        4,060,680         4,387,152
                    A+     A1       3,500,000   Electronic Data Systems Corp.,
                                                    6.85% due 5/15/2000 (a)                  3,497,235         3,556,693
                                                News American Holdings, Inc.:
                    BBB    Baa3     4,000,000       8.625% due 2/01/2003                     4,286,440         4,330,200
                    BBB    Baa3     4,500,000       8.50% due 2/15/2005                      4,677,305         4,871,745
                    BBB+   Baa2     1,000,000   Oracle Corporation, 6.91% due 2/15/2007      1,000,000         1,006,510
                                                Sears, Roebuck & Co.:
                    A-     A2       2,500,000       9.25% due 4/15/1998                      2,837,275         2,544,325
                    A-     A2       7,000,000       8.45% due 11/01/1998                     7,762,380         7,172,760
                    A-     A2       5,550,000   Sears Roebuck Acceptance Corp.,
                                                    6.22% due 3/25/1999                      5,478,183         5,566,483
                                                Service Corporation International:
                    BBB+   Baa1     1,000,000       6.75% due 6/01/2001                        996,940         1,010,580
                    BBB+   Baa1     1,500,000       7.20% due 6/01/2006                      1,495,455         1,537,305
                                                TCI Communications Inc.:
                    BBB-   Ba1      3,000,000       8.65% due 9/15/2004                      3,099,270         3,247,020
                    BBB-   Ba1      5,500,000       8% due 8/01/2005                         5,561,380         5,737,160
                    BBB-   Baa3     5,000,000   Time Warner Inc., 9.625% due 5/01/2002       5,586,000         5,580,000
                    BBB-   Ba1      5,000,000   Turner Broadcasting System, Inc.
                                                    (Class B), 7.40% due 2/01/2004           5,108,150         5,120,350
                    A      A2       4,812,625   Walt Disney Co., 6.85% due
                                                    1/10/2007 (a)++                          4,809,400         4,858,826
                                                                                        --------------    --------------
                                                                                            69,033,673        69,891,339

Industrial--        BBB-   Baa3     4,310,000   AMR Corporation, 9.50% due 7/15/1998         4,606,528         4,425,637
Transportation--    AA+    Aa3      4,000,000   Boeing Co. (The), 6.35% due 6/15/2003        3,599,960         3,988,400
5.8%                                            Norfolk Southern Corporation:
                    BBB+   Baa1     5,000,000       6.95% due 5/01/2002                      4,992,400         5,102,950
                    BBB+   Baa1     1,000,000       7.35% due 5/15/2007                        999,310         1,039,470
                                                Southwest Airlines, Inc.:
                    A-     A3       6,500,000       9.40% due 7/01/2001                      7,564,180         7,120,945
                    A-     A3       1,000,000       8% due 3/01/2005                           994,610         1,073,960
                                                                                        --------------    --------------
                                                                                            22,756,988        22,751,362

Utilities--         A+     A2       4,000,000   Alltel Corporation, 6.75% due
Communications--                                    9/15/2005                                3,938,400         4,023,880
5.8%                                            GTE Corporation:
                    A      A3       1,000,000       9.375% due 12/01/2000                    1,090,310         1,087,520
                    A      A3       2,000,000       9.10% due 6/01/2003                      2,194,920         2,242,300
                    A      A2       6,000,000   MCI Communications Corporation, 6.95%
                                                    due 8/15/2006                            5,980,200         6,153,540
                    AA     Aa3      2,200,000   Southwestern Bell Capital Corp., 6.625%
                                                    due 4/01/2005                            2,108,590         2,208,338
                                                US West Capital Funding, Inc.:
                    BBB+   Baa1     2,000,000       6.85% due 1/15/2002                      1,979,920         2,025,580
                    BBB+   Baa1     2,000,000       7.30% due 1/15/2007                      2,062,080         2,045,200
                    BBB-   Ba1      3,000,000   WorldCom, Inc., 7.75% due 4/01/2007          3,095,220         3,145,020
                                                                                        --------------    --------------
                                                                                            22,449,640        22,931,378
</TABLE>

                                      77
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


<TABLE>
SCHEDULE OF INVESTMENTS (concluded)
<CAPTION>
                   S&P    Moody's      Face                                                                  Value
Industries        Rating   Rating     Amount             Issue                              Cost           (Note 1a)

Bonds & Notes (concluded)                                                                  Intermediate Term Portfolio
<S>                 <S>    <S>    <C>           <S>                                     <C>               <C>
Utilities--         BBB+   Baa1    $4,000,000   Arizona Public Service Company,
Electric--2.8%                                      6.75% due 11/15/2006                $    3,905,840    $    4,009,520
                    A-     A3       2,000,000   PSE&G Capital Corp., 6.50% due
                                                    6/01/2000                                1,999,120         2,016,420
                                                Pennsylvania Power & Light Co.:
                    A-     A3       4,000,000       5.50% due 4/01/1998                      3,991,280         3,994,680
                    A-     A3       1,000,000       6.875% due 2/01/2003                     1,016,290         1,016,950
                                                                                        --------------    --------------
                                                                                            10,912,530        11,037,570

Yankee              A-     Baa1     1,500,000   Enersis S.A., 6.90% due 12/01/2006 (3)       1,496,130         1,499,490
Corporates*--       A+     A1       2,000,000   Ford Capital B.V., 9.875% due
7.6%                                                5/15/2002 (4)                            2,300,380         2,265,600
                    A+     A2       3,000,000   Grand Metropolitan Investment Corp.,
                                                    6.50% due 9/15/1999 (4)                  3,040,120         3,023,820
                    A-     A3       1,000,000   HSBC Americas Inc., 7% due 11/01/2006 (4)      991,600         1,009,730
                    A+     A3       4,500,000   Hutchison Whampoa Finance Ltd., 6.95%
                                                    due 8/01/2007 (4)                        4,429,590         4,435,650
                    A-     A3       2,000,000   Israel Electric Corp. Ltd., 7.25% due
                                                    12/15/2006 (3)(a)                        1,996,200         2,031,846
                                                Petroliam Nasional BHD (3)(a):
                    A+     A1       2,000,000       6.875% due 7/01/2003                     1,972,960         1,976,000
                    A+     A1       7,500,000       7.125% due 10/18/2006                    7,479,825         7,404,135
                    BBB+   A3       5,000,000   Philips Electronics N.V., 7.75%
                                                    due 4/15/2004 (3)                        5,430,750         5,246,750
                    A+     A2       1,000,000   Pohang Iron & Steel Company Ltd.,
                                                    7.125% due 7/15/2004 (5)                   997,450           980,250
                                                                                        --------------    --------------
                                                                                            30,135,005        29,873,271

Yankee              AA-    A1       1,000,000   Korea Development Bank, 6.625% due
Sovereign*--                                        11/21/2003 (2)                           1,007,890           973,750
0.9%                                            People's Republic of China (1):
                    BBB+   A3       1,000,000       6.625% due 1/15/2003                       995,160           991,580
                    BBB+   A3       1,500,000       7.75% due 7/05/2006                      1,475,865         1,566,180
                                                                                        --------------    --------------
                                                                                             3,478,915         3,531,510

                                                Total Investments in
                                                Bonds & Notes--96.8%                       376,796,273       380,443,243

Short-Term Securities

Repurchase                          7,935,000   UBS Securities Funding, Inc.,
Agreements**--2.0%                                  purchased on 9/30/1997 to yield
                                                    6.06% to 10/01/1997                      7,935,000         7,935,000

                                                Total Investments in
                                                Short-Term Securities--2.0%                  7,935,000         7,935,000

Total Investments--98.8%                                                                $  384,731,273       388,378,243
                                                                                        ==============
Other Assets Less Liabilities--1.2%                                                                            4,790,834
                                                                                                          --------------
Net Assets--100.0%                                                                                        $  393,169,077
                                                                                                          ==============


<FN>
  *Corresponding industry groups for foreign securities which are
   denominated in US dollars:
   (1)Government Entity.
   (2)Financial Institution; Government-Owned & Guaranteed.
   (3)Industrial.
   (4)Financial Institution.
   (5)Industrial; Metals.
 **Repurchase Agreements are fully collateralized by US Government
   and Agency Obligations.
 ++Subject to principal paydowns.
(a)The security may be offered and sold to "qualified institutional
   buyers" under Rule 144A of the Securities Act of 1933.

   See Notes to Financial Statements.

Ratings of issues shown have not been audited by Deloitte & Touche LLP.
</TABLE>

                                      78
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION

<TABLE>
Statements of Assets and Liabilities as of September 30, 1997
<CAPTION>
                                                                                           Investment      Intermediate
                                                                                         Grade Portfolio  Term Portfolio
<S>                 <S>                                                                  <C>              <C>
Assets:             Investments, at value* (Note 1a)                                     $1,209,581,093   $  388,378,243
                    Cash                                                                      6,694,633        7,820,086
                    Receivables:
                      Interest                                                               20,333,995        6,978,442
                      Capital shares sold                                                     1,890,457          792,151
                      Securities sold                                                                --        2,065,693
                      Loans                                                                      10,667            5,779
                    Prepaid registration fees and other assets (Note 1e)                         29,886           28,272
                                                                                         --------------   --------------
                    Total assets                                                          1,238,540,731      406,068,666
                                                                                         --------------   --------------

Liabilities:        Payables:
                      Securities purchased                                                    6,690,921        9,773,900
                      Capital shares redeemed                                                 3,029,702        1,908,754
                      Dividends to shareholders (Note 1f)                                     2,462,296          785,402
                      Investment adviser (Note 2)                                               348,865          113,156
                      Distributor (Note 2)                                                      392,541           65,463
                    Accrued expenses and other liabilities                                      602,980          252,914
                                                                                         --------------   --------------
                    Total liabilities                                                        13,527,305       12,899,589
                                                                                         --------------   --------------

Net Assets:         Net assets                                                           $1,225,013,426   $  393,169,077
                                                                                         ==============   ==============

Net Assets          Class A Common Stock, $.10 par value++                               $    4,558,678   $    1,558,257
Consist of:         Class B Common Stock, $.10 par value++++                                  5,069,839        1,288,787
                    Class C Common Stock, $.10 par value++++++                                  437,696           13,668
                    Class D Common Stock, $.10 par value++++++++                                678,493          559,642
                    Paid-in capital in excess of par                                      1,235,789,880      397,492,839
                    Accumulated realized capital losses on investments--net                  (6,840,481)      (5,870,447)
                    Accumulated distributions in excess of realized capital gains on
                    investments--net (Note 1f)                                              (31,764,707)      (5,520,639)
                    Unrealized appreciation on investments--net                              17,084,028        3,646,970
                                                                                         --------------   --------------
                    Net assets                                                           $1,225,013,426   $  393,169,077
                                                                                         ==============   ==============

Net        Class A: Net assets                                                           $  519,708,420   $  179,115,016
Asset                                                                                    ==============   ==============
Value:              Shares outstanding                                                       45,586,778       15,582,572
                                                                                         ==============   ==============
                    Net asset value and redemption price per share                       $        11.40   $        11.49
                                                                                         ==============   ==============
           Class B: Net assets                                                           $  577,989,206   $  148,147,805
                                                                                         ==============   ==============
                    Shares outstanding                                                       50,698,388       12,887,867
                                                                                         ==============   ==============
                    Net asset value and redemption price per share                       $        11.40   $        11.50
                                                                                         ==============   ==============
           Class C: Net assets                                                           $   49,918,132   $    1,570,857
                                                                                         ==============   ==============
                    Shares outstanding                                                        4,376,961          136,676
                                                                                         ==============   ==============
                    Net asset value and redemption price per share                       $        11.40   $        11.49
                                                                                         ==============   ==============
           Class D: Net assets                                                           $   77,397,668   $   64,335,399
                                                                                         ==============   ==============
                    Net asset value and redemption price per share                       $        11.41   $        11.50
                                                                                         ==============   ==============
             <FN>
                   *Identified cost                                                      $1,192,497,065   $  384,731,273
                                                                                         ==============   ==============
                  ++Authorized shares--Class A                                              250,000,000      100,000,000
                                                                                         ==============   ==============
                ++++Authorized shares--Class B                                              250,000,000       50,000,000
                                                                                         ==============   ==============
              ++++++Authorized shares--Class C                                              100,000,000       50,000,000
                                                                                         ==============   ==============
            ++++++++Authorized shares--Class D                                              100,000,000       50,000,000
                                                                                         ==============   ==============


                    See Notes to Financial Statements.
</TABLE>

                                      79
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Statements of Operations for the Year Ended September 30, 1997
<CAPTION>
                                                                                            Investment    Intermediate
                                                                                              Grade           Term
                                                                                            Portfolio       Portfolio
<S>                 <S>                                                                  <C>              <C>
Investment          Interest and discount earned                                         $  101,496,218   $   32,416,240
Income              Loaned securities                                                            81,037           51,929
(Note 1d):          Other                                                                            --            9,051
                                                                                         --------------   --------------
                    Total income                                                            101,577,255       32,477,220
                                                                                         --------------   --------------

Expenses:           Investment advisory fees (Note 2)                                         4,995,553        1,644,791
                    Account maintenance and distribution fees--Class B (Note 2)               4,943,306          950,958
                    Transfer agent fees--Class B (Note 2)                                     1,245,495          498,740
                    Transfer agent fees--Class A (Note 2)                                     1,036,847          505,386
                    Account maintenance and distribution fees--Class C (Note 2)                 471,625           35,211
                    Accounting services (Note 2)                                                153,971           75,374
                    Account maintenance fees--Class D (Note 2)                                  176,298           51,884
                    Transfer agent fees--Class D (Note 2)                                       121,991          130,341
                    Registration fees (Note 1e)                                                 126,239           63,810
                    Printing and shareholder reports                                            119,089           36,152
                    Transfer agent fees--Class C (Note 2)                                       114,179           20,331
                    Custodian fees                                                               74,392           40,921
                    Professional fees                                                            27,441           12,588
                    Pricing fees (Note 2)                                                        15,879            8,399
                    Directors' fees and expenses                                                  8,263            3,406
                    Other                                                                        15,977            7,053
                                                                                         --------------   --------------
                    Total expenses                                                           13,646,545        4,085,345
                                                                                         --------------   --------------
                    Investment income--net                                                   87,930,710       28,391,875
                                                                                         --------------   --------------

Realized &          Realized loss on investments--net                                          (160,363)        (507,524)
Unrealized Gain     Change in unrealized appreciation/depreciation on investments--net       28,265,493        8,329,252
(Loss) on                                                                                --------------   --------------
Investments--Net    Net Increase in Net Assets Resulting from Operations                 $  116,035,840   $   36,213,603
(Notes 1b, 1d & 3):                                                                      ==============   ==============


                    See Notes to Financial Statements.
</TABLE>

                                      80
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Statements of Changes in Net Assets                                                        Investment Grade Portfolio
<CAPTION>
                                                                                                 For the Year Ended
                                                                                                   September 30,
Increase (Decrease) in Net Assets:                                                             1997             1996
<S>                 <S>                                                                  <C>              <C>
Operations:         Investment income--net                                               $   87,930,710   $   83,065,190
                    Realized gain (loss) on investments--net                                   (160,363)       1,240,458
                    Change in unrealized appreciation/depreciation on
                    investments--net                                                         28,265,493      (44,461,678)
                                                                                         --------------   --------------
                    Net increase in net assets resulting from operations                    116,035,840       39,843,970
                                                                                         --------------   --------------

Dividends to        Investment income--net:
Shareholders          Class A                                                               (40,601,509)     (36,619,895)
(Note 1f):            Class B                                                               (39,286,289)     (40,835,373)
                      Class C                                                                (3,483,463)      (2,822,765)
                      Class D                                                                (4,559,449)      (2,787,157)
                                                                                         --------------   --------------
                    Net decrease in net assets resulting from dividends
                    to shareholders                                                         (87,930,710)     (83,065,190)
                                                                                         --------------   --------------

Capital Share       Net increase (decrease) in net assets derived from capital
Transactions        share transactions                                                     (264,834,589)     350,127,963
(Note 4):

Net Assets:         Total increase (decrease) in net assets                                (236,729,459)     306,906,743
                    Beginning of year                                                     1,461,742,885    1,154,836,142
                                                                                         --------------   --------------
                    End of year                                                          $1,225,013,426   $1,461,742,885
                                                                                         ==============   ==============


                    See Notes to Financial Statements.


<CAPTION>
Statements of Changes in Net Assets (concluded)                                           Intermediate Term Portfolio

                                                                                                 For the Year Ended
                                                                                                   September 30,
Increase (Decrease) in Net Assets:                                                             1997             1996
<S>                 <S>                                                                  <C>              <C>
Operations:         Investment income--net                                               $   28,391,875   $   29,804,225
                    Realized gain (loss) on investments--net                                   (507,524)       3,880,395
                    Change in unrealized appreciation/depreciation on
                    investments--net                                                          8,329,252      (13,083,867)
                                                                                         --------------   --------------
                    Net increase in net assets resulting from operations                     36,213,603       20,600,753
                                                                                         --------------   --------------

Dividends to        Investment income--net:
Shareholders          Class A                                                               (13,458,213)     (14,523,748)
(Note 1f):            Class B                                                               (11,241,646)     (13,124,698)
                      Class C                                                                  (414,942)        (542,378)
                      Class D                                                                (3,277,074)      (1,613,401)
                                                                                         --------------   --------------
                    Net decrease in net assets resulting from dividends
                    to shareholders                                                         (28,391,875)     (29,804,225)
                                                                                         --------------   --------------

Capital Share       Net increase (decrease) in net assets derived from capital
Transactions        share transactions                                                      (91,252,583)      32,787,882
(Note 4):                                                                                --------------   --------------


Net Assets:         Total increase (decrease) in net assets                                 (83,430,855)      23,584,410
                    Beginning of year                                                       476,599,932      453,015,522
                                                                                         --------------   --------------
                    End of year                                                          $  393,169,077   $  476,599,932
                                                                                         ==============   ==============
                    See Notes to Financial Statements.
</TABLE>

                                      81
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Financial Highlights                                                                         Investment Grade Portfolio
<CAPTION>
The following per share data and ratios have been derived
from information provided in the financial statements.                                    Class A
                                                                              For the Year Ended September 30,
Increase (Decrease) in Net Asset Value:                             1997       1996        1995        1994      1993
<S>                 <S>                                         <C>        <C>         <C>         <C>         <C>
Per Share           Net asset value, beginning of year          $   11.16  $   11.51   $   10.77   $   12.81   $   12.30
Operating                                                       ---------  ---------   ---------   ---------   ---------
Performance:        Investment income--net                            .76        .76         .80         .75         .81
                    Realized and unrealized gain (loss) on
                    investments--net                                  .24       (.35)        .74       (1.49)        .67
                                                                ---------  ---------   ---------   ---------   ---------
                    Total from investment operations                 1.00        .41        1.54        (.74)       1.48
                                                                ---------  ---------   ---------   ---------   ---------
                    Less dividends and distributions:
                      Investment income--net                         (.76)      (.76)       (.80)       (.75)       (.81)
                      Realized gain on investments--net                --         --          --        (.10)       (.16)
                      In excess of realized gain on
                      investments--net                                 --         --          --        (.45)         --
                                                                ---------  ---------   ---------   ---------   ---------
                    Total dividends and distributions                (.76)      (.76)       (.80)      (1.30)       (.97)
                                                                ---------  ---------   ---------   ---------   ---------
                    Net asset value, end of year                $   11.40  $   11.16   $   11.51   $   10.77   $   12.81
                                                                =========  =========   =========   =========   =========

Total Investment    Based on net asset value per share              9.22%      3.60%      14.93%     (6.03%)      12.76%
Return:*                                                        =========  =========   =========   =========   =========

Ratios to Average   Expenses                                         .57%       .56%        .58%        .53%        .56%
Net Assets:                                                     =========  =========   =========   =========   =========
                    Investment income--net                          6.73%      6.64%       7.30%       6.61%       6.94%
                                                                =========  =========   =========   =========   =========

Supplemental        Net assets, end of year (in thousands)      $ 519,708  $ 608,901   $ 472,388   $ 366,792   $ 407,625
Data:                                                           =========  =========   =========   =========   =========
                    Portfolio turnover                            113.46%     88.53%     108.07%     159.05%     121.34%
                                                                =========  =========   =========   =========   =========


<CAPTION>
The following per share data and ratios have been derived
from information provided in the financial statements.                                    Class B
                                                                              For the Year Ended September 30,
Increase (Decrease) in Net Asset Value:                             1997       1996        1995        1994      1993
<S>                 <S>                                         <C>        <C>         <C>         <C>         <C>
Per Share           Net asset value, beginning of year          $   11.16  $   11.51   $   10.77   $   12.81   $   12.30
Operating                                                       ---------  ---------   ---------   ---------   ---------
Performance:        Investment income--net                            .67        .67         .72         .66         .72
                    Realized and unrealized gain (loss) on
                    investments--net                                  .24       (.35)        .74       (1.49)        .67
                                                                ---------  ---------   ---------   ---------   ---------
                    Total from investment operations                  .91        .32        1.46        (.83)       1.39
                                                                ---------  ---------   ---------   ---------   ---------
                    Less dividends and distributions:
                      Investment income--net                         (.67)      (.67)       (.72)       (.66)       (.72)
                      Realized gain on investments--net                --         --          --        (.10)       (.16)
                      In excess of realized gain on
                      investments--net                                 --         --          --        (.45)         --
                                                                ---------  ---------   ---------   ---------   ---------
                    Total dividends and distributions                (.67)      (.67)       (.72)      (1.21)       (.88)
                                                                ---------  ---------   ---------   ---------   ---------
                    Net asset value, end of year                $   11.40  $   11.16   $   11.51   $   10.77   $   12.81
                                                                =========  =========   =========   =========   =========

Total Investment    Based on net asset value per share              8.39%      2.81%      14.04%      (6.73%)     11.91%
Return:*                                                        =========  =========   =========   =========   =========

Ratios to Average   Expenses                                        1.34%      1.32%       1.35%       1.29%       1.29%
Net Assets:                                                     =========  =========   =========   =========   =========
                    Investment income--net                          5.96%      5.88%       6.52%       5.85%       5.80%
                                                                =========  =========   =========   =========   =========

Supplemental        Net assets, end of year (in thousands)      $ 577,989  $ 724,089   $ 631,517   $ 483,053   $ 515,402
Data:                                                           =========  =========   =========   =========   =========
                    Portfolio turnover                            113.46%     88.53%     108.07%     159.05%     121.34%
                                                                =========  =========   =========   =========   =========

                   <FN>
                   *Total investment returns exclude the effects of sales loads.

                    See Notes to Financial Statements.
</TABLE>

                                      82
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Financial Highlights (continued)                                                            Investment Grade Portfolio
<CAPTION>
                                                                                               Class C
                                                                                                               For the
                                                                                                                Period
The following per share data and ratios have been derived                               For the                Oct. 21,
from information provided in the financial statements.                                 Year Ended             1994++ to
                                                                                     September 30,             Sept. 30,
Increase (Decrease) in Net Asset Value:                                          1997            1996            1995
<S>                 <S>                                                         <C>            <C>             <C>
Per Share           Net asset value, beginning of period                        $   11.17      $   11.51       $   10.67
Operating                                                                       ---------      ---------       ---------
Performance:        Investment income--net                                            .67            .66             .67
                    Realized and unrealized gain (loss)
                    on investments--net                                               .23           (.34)            .84
                                                                                ---------      ---------       ---------
                    Total from investment operations                                  .90            .32            1.51
                                                                                ---------      ---------       ---------
                    Less dividends from investment income--net                       (.67)          (.66)           (.67)
                                                                                ---------      ---------       ---------
                    Net asset value, end of period                              $   11.40      $   11.17       $   11.51
                                                                                =========      =========       =========

Total Investment    Based on net asset value per share                              8.23%          2.85%          14.60%+++
Return:**                                                                       =========      =========       =========

Ratios to Average   Expenses                                                        1.39%          1.38%           1.40%*
Net Assets:                                                                     =========      =========       =========
                    Investment income--net                                          5.91%          5.83%           6.27%*
                                                                                =========      =========       =========

Supplemental        Net assets, end of period (in thousands)                    $  49,918      $  64,931       $  25,778
Data:                                                                           =========      =========       =========
                    Portfolio turnover                                            113.46%         88.53%         108.07%
                                                                                =========      =========       =========


<CAPTION>
                                                                                               Class D
                                                                                                                For the
                                                                                                                Period
The following per share data and ratios have been derived                               For the                 Oct. 21,
from information provided in the financial statements.                                 Year Ended              1994++ to
                                                                                     September 30,             Sept. 30,
Increase (Decrease) in Net Asset Value:                                          1997            1996            1995
<S>                 <S>                                                         <C>            <C>             <C>
Per Share           Net asset value, beginning of period                        $   11.17      $   11.51       $   10.67
Operating                                                                       ---------      ---------       ---------
Performance:        Investment income--net                                            .73            .73             .73
                    Realized and unrealized gain (loss)
                    on investments--net                                               .24           (.34)            .84
                                                                                ---------      ---------       ---------
                    Total from investment operations                                  .97            .39            1.57
                                                                                ---------      ---------       ---------
                    Less dividends from investment income--net                       (.73)          (.73)           (.73)
                                                                                ---------      ---------       ---------
                    Net asset value, end of period                              $   11.41      $   11.17       $   11.51
                                                                                =========      =========       =========

Total Investment    Based on net asset value per share                              8.95%          3.43%          15.22%+++
Return:**                                                                       =========      =========       =========


Ratios to Average   Expenses                                                         .82%           .81%            .83%*
Net Assets:                                                                     =========      =========       =========
                    Investment income--net                                          6.47%          6.40%           6.91%*
                                                                                =========      =========       =========

Supplemental        Net assets, end of period (in thousands)                    $  77,398      $  63,822       $  25,153
Data:                                                                           =========      =========       =========
                    Portfolio turnover                                            113.46%         88.53%         108.07%
                                                                                =========      =========       =========

                 <FN>
                  ++Commencement of operations.
                   *Annualized.
                  **Total investment returns exclude the effects of sales loads.
                 +++Aggregate total investment return.

                    See Notes to Financial Statements.
</TABLE>

                                      83
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)


<TABLE>
Financial Highlights                                                                         Intermediate Term Portfolio
<CAPTION>
The following per share data and ratios have been derived
from information provided in the financial statements.                                    Class A
                                                                              For the Year Ended September 30,
Increase (Decrease) in Net Asset Value:                             1997       1996        1995        1994      1993
<S>                 <S>                                         <C>        <C>         <C>         <C>         <C>   
Per Share           Net asset value, beginning of year          $   11.28  $   11.50   $   10.90   $   12.44   $   12.03
Operating                                                       ---------  ---------   ---------   ---------   ---------
Performance:        Investment income--net                            .73        .73         .79         .75         .76
                    Realized and unrealized gain (loss) on
                    investments--net                                  .21       (.22)        .60       (1.26)        .55
                                                                ---------  ---------   ---------   ---------   ---------
                    Total from investment operations                  .94        .51        1.39        (.51)       1.31
                                                                ---------  ---------   ---------   ---------   ---------
                    Less dividends and distributions:
                      Investment income--net                         (.73)      (.73)       (.79)       (.75)       (.76)
                      Realized gain on investments--net                --         --          --          --        (.14)
                      In excess of realized gain on
                      investments--net                                 --         --          --        (.28)         --
                                                                ---------  ---------   ---------   ---------   ---------
                    Total dividends and distributions                (.73)      (.73)       (.79)      (1.03)       (.90)
                                                                ---------  ---------   ---------   ---------   ---------
                    Net asset value, end of year                $   11.49  $   11.28   $   11.50   $   10.90   $   12.44
                                                                =========  =========   =========   =========   =========

Total Investment    Based on net asset value per share              8.59%      4.56%      13.33%      (4.25%)     11.39%
Return:*                                                        =========  =========   =========   =========   =========

Ratios to Average   Expenses                                         .65%       .59%        .59%        .53%        .58%
Net Assets:                                                     =========  =========   =========   =========   =========
                    Investment income--net                          6.43%      6.41%       7.14%       6.48%       6.42%
                                                                =========  =========   =========   =========   =========

Supplemental        Net assets, end of year (in thousands)      $ 179,115  $ 216,545   $ 217,714   $ 170,222   $ 193,505
Data:                                                           =========  =========   =========   =========   =========
                    Portfolio turnover                             76.99%     96.40%     142.84%     155.42%     180.52%
                                                                =========  =========   =========   =========   =========


                   <FN>
                   *Total investment returns exclude the effects of sales loads.

                    See Notes to Financial Statements.
</TABLE>

                                      84
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION (continued)

<TABLE>
Financial Highlights                                                                         Intermediate Term Portfolio
<CAPTION>
The following per share data and ratios have been derived                                                  For the Period
from information provided in the financial statements.                         Class B                     Nov. 13, 1992++
                                                                      For the Year Ended September 30,       to Sept. 30,
Increase (Decrease) in Net Asset Value:                             1997       1996        1995        1994       1993
<S>                 <S>                                         <C>        <C>         <C>         <C>         <C>
Per Share           Net asset value, beginning of period        $   11.28  $   11.50   $   10.90   $   12.44   $   11.68
Operating                                                       ---------  ---------   ---------   ---------   ---------
Performance:        Investment income--net                            .67        .67         .74         .69         .61
                    Realized and unrealized gain (loss) on
                    investments--net                                  .22       (.22)        .60       (1.26)        .90
                                                                ---------  ---------   ---------   ---------   ---------
                    Total from investment operations                  .89        .45        1.34        (.57)       1.51
                                                                ---------  ---------   ---------   ---------   ---------
                    Less dividends and distributions:
                      Investment income--net                         (.67)      (.67)       (.74)       (.69)       (.61)
                      Realized gain on investments--net                --         --          --          --        (.14)
                      In excess of realized gain on
                      investments--net                                 --         --          --        (.28)         --
                                                                ---------  ---------   ---------   ---------   ---------
                    Total dividends and distributions                (.67)      (.67)       (.74)       (.97)       (.75)
                                                                ---------  ---------   ---------   ---------   ---------
                    Net asset value, end of period              $   11.50  $   11.28   $   11.50   $   10.90   $   12.44
                                                                =========  =========   =========   =========   =========

Total Investment    Based on net asset value per share              8.13%      4.02%      12.73%      (4.72%)     13.30%+++
Return:**                                                       =========  =========   =========   =========   =========

Ratios to Average   Expenses                                        1.17%      1.11%       1.11%       1.04%       1.07%*
Net Assets:                                                     =========  =========   =========   =========   =========
                    Investment income--net                          5.91%      5.89%       6.61%       5.98%       5.61%*
                                                                =========  =========   =========   =========   =========

Supplemental        Net assets, end of period (in thousands)    $ 148,148 $  216,641   $ 212,146   $ 141,212   $ 134,122
Data:                                                           =========  =========   =========   =========   =========
                    Portfolio turnover                             76.99%     96.40%     142.84%     155.42%     180.52%
                                                                =========  =========   =========   =========   =========

                 <FN>
                  ++Commencement of operations.
                   *Annualized.
                  **Total investment returns exclude the effects of sales loads.
                 +++Aggregate total investment return.

                    See Notes to Financial Statements.
</TABLE>

                                      85
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


FINANCIAL INFORMATION (concluded)

<TABLE>
Financial Highlights (concluded)                                                          Intermediate Term Portfolio
<CAPTION>
                                                                                                 Class C
                                                                                                               For the
                                                                                                               Period
The following per share data and ratios have been derived                               For the                Oct. 21,
from information provided in the financial statements.                                 Year Ended             1994++ to
                                                                                     September 30,            Sept. 30,
Increase (Decrease) in Net Asset Value:                                          1997            1996            1995
<S>                 <S>                                                         <C>            <C>             <C>
Per Share           Net asset value, beginning of period                        $   11.28      $   11.50       $   10.81
Operating                                                                       ---------      ---------       ---------
Performance:        Investment income--net                                            .67            .67             .70
                    Realized and unrealized gain (loss)
                    on investments--net                                               .21           (.22)            .69
                                                                                ---------      ---------       ---------
                    Total from investment operations                                  .88            .45            1.39
                                                                                ---------      ---------       ---------
                    Less dividends from investment income--net                       (.67)          (.67)           (.70)
                                                                                ---------      ---------       ---------
                    Net asset value, end of period                              $   11.49      $   11.28       $   11.50
                                                                                =========      =========       =========

Total Investment    Based on net asset value per share                              7.99%          3.99%          13.25%+++
Return:**                                                                       =========      =========       =========

Ratios to Average   Expenses                                                        1.20%          1.15%           1.14%*
Net Assets:                                                                     =========      =========       =========
                    Investment income--net                                          5.89%          5.86%           6.24%*
                                                                                =========      =========       =========

Supplemental        Net assets, end of period (in thousands)                    $   1,571      $  10,144       $   6,806
Data:                                                                           =========      =========       =========
                    Portfolio turnover                                             76.99%         96.40%         142.84%
                                                                                =========      =========       =========


<CAPTION>
                                                                                                  Class D
                                                                                                               For the
                                                                                                                Period
The following per share data and ratios have been derived                               For the                 Oct. 21,
from information provided in the financial statements.                                 Year Ended              1994++ to
                                                                                     September 30,             Sept. 30,
Increase (Decrease) in Net Asset Value:                                          1997            1996             1995
<S>                 <S>                                                         <C>            <C>             <C>
Per Share           Net asset value, beginning of period                        $   11.28      $   11.50       $   10.81
Operating                                                                       ---------      ---------       ---------
Performance:        Investment income--net                                            .72            .72             .74
                    Realized and unrealized gain (loss) on
                    investments--net                                                  .22           (.22)            .69
                                                                                ---------      ---------       ---------
                    Total from investment operations                                  .94            .50            1.43
                                                                                ---------      ---------       ---------
                    Less dividends from investment income--net                       (.72)          (.72)           (.74)
                                                                                ---------      ---------       ---------
                    Net asset value, end of period                              $   11.50      $   11.28       $   11.50
                                                                                =========      =========       =========

Total Investment    Based on net asset value per share                              8.58%          4.46%          13.65%+++
Return:**                                                                       =========      =========       =========

Ratios to Average   Expenses                                                         .77%           .71%            .70%*
Net Assets:                                                                     =========      =========       =========
                    Investment income--net                                          6.32%          6.32%           6.81%*
                                                                                =========      =========       =========

Supplemental        Net assets, end of period (in thousands)                    $  64,335      $  33,270       $  16,349
Data:                                                                           =========      =========       =========
                    Portfolio turnover                                             76.99%         96.40%         142.84%
                                                                                =========      =========       =========

                 <FN>
                  ++Commencement of operations.
                   *Annualized.
                  **Total investment returns exclude the effects of sales loads.
                 +++Aggregate total investment return.

                    See Notes to Financial Statements.
</TABLE>

                                      86
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


NOTES TO FINANCIAL STATEMENTS

1. Significant Accounting Policies:
The Investment Grade Portfolio and the Intermediate Term Portfolio
("Portfolio" or "Portfolios") are two of three portfolios in 
Merrill Lynch Corporate Bond Fund, Inc. (the "Fund") which is 
registered under the Investment Company Act of 1940 as a 
diversified, open-end management investment company. Each
Portfolio offers four classes of shares under the Merrill Lynch
Select Pricing SM System. Shares of Class A and Class D are sold with
a front-end sales charge. Shares of Class B and Class C may be
subject to a contingent deferred sales charge. All classes of shares
have identical voting, dividend, liquidation and other rights and
the same terms and conditions, except that Class B, Class C and
Class D Shares bear certain expenses related to the account
maintenance of such shares, and Class B and Class C Shares also bear
certain expenses related to the distribution of such shares. Each
class has exclusive voting rights with respect to matters relating
to its account maintenance and distribution expenditures. The
following is a summary of significant accounting policies followed
by the Portfolios.

(a) Valuation of investments--Portfolio securities which are traded
on stock exchanges are valued at the last sale price as of the close
of business on the day the securities are being valued, or lacking
any sales, at the mean between closing bid and asked prices.
Securities traded in the over-the-counter market are valued at the
most recent bid prices as obtained from one or more dealers that
make mar-kets in the securities. Portfolio securities which are
traded both in the over-the-counter market and on a stock exchange
are valued according to the broadest and most representative market,
and it is expected that for debt securities this ordinarily will be
the over-the-counter market. Short-term securities are valued at
amortized cost, which approximates market value.

Options on debt securities, which are traded on exchanges, are
valued at the last asked price for options written and last bid
price for options purchased. Interest rate futures contracts and
options thereon, which are traded on exchanges, are valued at their
closing price at the close of such exchanges. Securities and assets
for which market quotations are not readily available are valued at
fair value as determined in good faith by or under the direction of
the Board of Directors of the Fund, including valuations furnished
by a pricing service retained by the Fund which may use a matrix
system for valuations.

(b) Derivative financial instruments--The Portfolios may engage in
various portfolio strategies to seek to increase its return by
hedging its portfolio against adverse movements in the equity, debt
and currency markets. Losses may arise due to changes in the value
of the contract or if the counterparty does not perform under the
contract.

* Financial futures contracts--The Portfolios may purchase or sell
interest rate futures contracts and options on such futures
contracts for the purpose of hedging the market risk on existing
securities or the intended purchase of securities. Futures contracts
are contracts for delayed delivery of securities at a specific
future date and at a specific price or yield. Upon entering into a
contract, each Portfolio deposits and maintains as collateral such
initial margin as required by the exchange on which the transaction
is effected. Pursuant to the contract, each Portfolio agrees to
receive from or pay to the broker an amount of cash equal to the
daily fluctuation in value of the contract. Such receipts or
payments are known as variation margin and are recorded by each
Portfolio as unrealized gains or losses. When the contract is
closed, each Portfolio records a realized gain or loss equal to the
difference between the value of the contract at the time it was
opened and the value at the time it was closed.

* Options--The Portfolios are authorized to purchase and write call
and put options. When each Portfolio writes an option, an amount
equal to the premium received by each Portfolio is reflected as an
asset and an equivalent liability. The amount of the liability is
subsequently marked to market to reflect the current market value of
the option written.

When a security is purchased or sold through an exercise of an
option, the related premium paid (or received) is added to (or
deducted from) the basis of the security acquired or deducted from
(or added to) the proceeds of the security sold. When an option
expires (or each Portfolio enters into a closing transaction), each
Portfolio realizes a gain or loss on the option to the extent of the
premiums received or paid (or loss or gain to the extent the cost of
the closing transaction exceeds the premium paid or received).

Written and purchased options are non-income producing investments.

(c) Income taxes--It is the Portfolios' policy to comply with the
requirements of the Internal Revenue Code applicable to regulated
investment companies 

                                      87
<PAGE>
 
and to distribute substantially all of its taxable income to its shareholders.
Therefore, no Federal income tax provision is required.


Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


NOTES TO FINANCIAL STATEMENTS (continued)


(d) Security transactions and investment income--Security
transactions are recorded on the dates the transactions are entered
into (the trade dates). Interest income (including amortization of
discount) is recognized on the accrual basis. Realized gains and
losses on security transactions are determined on the identified
cost basis.

(e) Prepaid registration fees--Prepaid registration fees are charged
to expense as the related shares are issued.

(f) Dividends and distributions--Dividends from net investment
income are declared daily and paid monthly. Distributions of capital
gains are recorded on the ex-dividend dates. Distributions in excess
of realized capital gains are due primarily to differing tax
treatments for post-October losses.


2. Investment Advisory Agreement and
Transactions with Affiliates:
The Fund has entered into an Investment Advisory Agreement with Fund
Asset Management, L.P. ("FAM"). The general partner of FAM is
Princeton Services, Inc. ("PSI"), an indirect wholly-owned
subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the
limited partner. The Fund has also entered into a Distribution
Agreement and Distribution Plans with Merrill Lynch Funds
Distributor, Inc. ("MLFD" or "Distributor"), a wholly-owned
subsidiary of Merrill Lynch Group, Inc.

FAM is responsible for the management of the Fund's Portfolios and
provides the necessary personnel, facilities, equipment and certain
other services necessary to the operations of the Fund. For such
services, FAM receives at the end of each month a fee with respect
to each Portfolio at the annual rates set forth below which are
based upon the aggregate average daily value of the Fund's net
assets at the following annual rates: 0.50% of the Fund's average
daily net assets not exceeding $250 million; 0.45% of the average
daily net assets in excess of $250 million but not exceeding $500
million; 0.40% of average daily net assets in excess of $500 million
but not exceeding $750 million; and 0.35% of average daily net
assets in excess of $750 million. For the year ended September 30,
1997, the aggregate average daily net assets of the Fund, including
the Fund's High Income Portfolio, was approximately $8,540,033,000.

Pursuant to the Distribution Plans adopted by the Fund in accordance
with Rule 12b-1 under the Investment Company Act of 1940, the Fund
pays the Distributor ongoing account maintenance and distribution
fees. The fees are accrued daily and paid monthly at annual rates
based upon the average daily net assets of the shares of each
Portfolio as follows:

                               Account               Distribution
                           Maintenance Fees              Fees

Portfolio           Class B   Class C    Class D   Class B   Class C

Investment Grade      0.25%     0.25%      0.25%     0.50%    0.55%

Intermediate Term     0.25%     0.25%      0.10%     0.25%    0.25%


Pursuant to a sub-agreement with the Distributor, Merrill Lynch,
Pierce, Fenner & Smith Inc. ("MLPF&S"), a subsidiary of ML & Co.,
also provides account maintenance and distribution services to the
Fund. The ongoing account maintenance fee compensates the
Distributor and MLPF&S for providing account maintenance services to
Class B, Class C and Class D shareholders. The ongoing distribution
fee compensates the Distributor and MLPF&S for providing shareholder
and distribution-related services to Class B and Class C
shareholders.

For the year ended September 30, 1997, MLFD earned underwriting
discounts and direct commissions and MLPF&S earned dealer
concessions on sales of each Portfolio's Class A and Class D Shares
as follows:

                               MLFD                      MLPF&S

Portfolio              Class A      Class D        Class A    Class D

Investment Grade        $4,495      $10,022        $44,314    $98,097

Intermediate Term       $  281      $ 1,225        $ 3,586    $21,553


For the year ended September 30, 1997, MLPF&S received contingent
deferred sales charges of $2,901,291 relating to transactions in
Class B Shares, amounting to $2,478,912 and $422,379 in the
Investment Grade Portfolio and Intermediate Term Portfolio,
respectively, $41,546 relating to transactions in Class C Shares,
amounting to $38,878 and $2,668 in the Investment Grade Portfolio
and Intermediate Term Portfolio, respectively. Furthermore, MLPF&S
received contingent deferred sales charges of $1,006 relating to
transactions subject to front-end sales charge waivers in Class A
Shares in the Intermediate Term Portfolio and $24,265 relating to
transactions subject to front-end sales charge waivers in Class D
Shares, amounting to $22,295 and $1,970 in the Investment Grade
Portfolio and Intermediate Term Portfolio, respectively.

                                      88
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


Merrill Lynch Financial Data Services, Inc. ("MLFDS"), a wholly-
owned subsidiary of ML & Co., is the Fund's transfer agent.

During the year ended September 30, 1997, the Portfolios paid
Merrill Lynch Security Pricing Service, an affiliate of MLPF&S,
$14,572 for security price quotations to compute the net asset
values of the Portfolios.

Accounting services are provided to the Fund by FAM at cost.

Certain officers and/or directors of the Fund are officers and/or
directors of FAM, PSI, MLFD, MLFDS, and/or ML & Co.


3. Investments:
Purchases and sales of investments, excluding short-term securities,
for the year ended September 30, 1997 were as follows:

                                 Investment      Intermediate
                                   Grade             Term
                                 Portfolio        Portfolio

Purchases                    $1,509,405,080    $ 338,576,717
                             ==============    =============
Sales                        $1,770,345,873    $ 427,651,394
                             ==============    =============

Net realized and unrealized gains (losses) as of September 30, 1997
were as follows:

                                   Realized       Unrealized
Investment Grade Portfolio          Losses          Gains

Long-term investments         $    (160,363)   $  17,084,028
                              -------------    -------------
Total                  .      $    (160,363)   $  17,084,028
                              =============    =============

                                   Realized       Unrealized
Intermediate Term Portfolio         Losses          Gains

Long-term investments         $    (507,524)   $   3,646,970
                              -------------    -------------
Total                         $    (507,524)   $   3,646,970
                              =============    =============

As of September 30, 1997, net unrealized appreciation (depreciation)
for Federal income tax purposes was as follows:

                                 Investment     Intermediate
                                   Grade            Term
                                 Portfolio       Portfolio

Gross unrealized appreciation $  23,815,943    $   6,747,361
Gross unrealized depreciation    (7,147,332)      (3,160,742)
                              -------------    -------------
Net unrealized appreciation   $  16,668,611    $   3,586,619
                              =============    =============

The aggregate cost of investments at September 30, 1997 for Federal
income tax purposes was $1,192,912,482 for the Investment Grade
Portfolio, and $384,791,624 for the Intermediate Term Portfolio.


4. Capital Share Transactions:
Net decrease in net assets derived from capital share transactions
for the year ended September 30, 1997, was $264,834,589 for the
Investment Grade Portfolio and $91,252,583 for the Intermediate Term
Portfolio. Net increase in net assets derived from capital share
transactions for the year ended September 30, 1996, was $350,127,963
for the Investment Grade Portfolio and $32,787,882 for the
Intermediate Term Portfolio.

Transactions in capital shares for each class were as follows:

Investment Grade Portfolio

Class A Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                      28,203,393   $  318,761,187
Shares issued to shareholders
in reinvestment of dividends      1,509,176       17,026,213
                                -----------   --------------
Total issued                     29,712,569      335,787,400
Shares redeemed                 (38,665,524)    (437,385,917)
                                -----------   --------------
Net decrease                     (8,952,955)  $ (101,598,517)
                                ===========   ==============

Investment Grade Portfolio

Class A Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                      21,512,307   $  245,167,944
Shares issued to shareholders
in reinvestment of dividends      1,723,312       19,614,975
                                -----------   --------------
Total issued                     23,235,619      264,782,919
Shares redeemed                  (9,749,755)    (110,603,218)
                                -----------   --------------
Net increase                     13,485,864   $  154,179,701
                                ===========   ==============

Investment Grade Portfolio

Class B Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                      12,089,795   $  136,401,227
Shares issued to shareholders
in reinvestment of dividends      2,232,218       25,197,726
                                -----------   --------------
Total issued                     14,322,013      161,598,953
Automatic conversion of shares     (922,371)     (10,376,812)
Shares redeemed                 (27,559,852)    (310,463,146)
                                -----------   --------------
Net decrease                    (14,160,210)  $ (159,241,005)
                                ===========   ==============


                                      89
<PAGE>
 
Merrill Lynch Corporate Bond Fund, Inc.,
Investment Grade Portfolio & Intermediate Term Portfolio
September 30, 1997


NOTES TO FINANCIAL STATEMENTS (concluded)


Investment Grade Portfolio

Class B Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                      25,682,986   $  293,704,255
Shares issued to shareholders
in reinvestment of dividends      2,302,336       26,218,517
                                -----------   --------------
Total issued                     27,985,322      319,922,772
Automatic conversion of shares     (492,211)      (5,556,607)
Shares redeemed                 (17,518,653)    (199,596,946)
                                -----------   --------------
Net increase                      9,974,458   $  114,769,219
                                ===========   ==============

Investment Grade Portfolio

Class C Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                       1,929,404   $   21,778,762
Shares issued to shareholders
in reinvestment of dividends        217,626        2,457,064
                                -----------   --------------
Total issued                      2,147,030       24,235,826
Shares redeemed                  (3,583,955)     (40,346,764)
                                -----------   --------------
Net decrease                     (1,436,925)  $  (16,110,938)
                                ===========   ==============

Investment Grade Portfolio

Class C Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                       4,830,230   $   55,222,029
Shares issued to shareholders
in reinvestment of dividends        170,995        1,937,935
                                -----------   --------------
Total issued                      5,001,225       57,159,964
Shares redeemed                  (1,426,919)     (16,176,400)
                                -----------   --------------
Net increase                      3,574,306   $   40,983,564
                                ===========   ==============

Investment Grade Portfolio

Class D Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                       2,634,267   $   29,755,828
Automatic conversion of shares      921,766       10,376,812
Shares issued to shareholders
in reinvestment of dividends        244,941        2,766,560
                                -----------   --------------
Total issued                      3,800,974       42,899,200
Shares redeemed                  (2,729,223)     (30,783,329)
                                -----------   --------------
Net increase                      1,071,751   $   12,115,871
                                ===========   ==============

Investment Grade Portfolio

Class D Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                       4,314,720   $   49,192,753
Automatic conversion of shares      491,987        5,556,607
Shares issued to shareholders
in reinvestment of dividends        169,863        1,927,735
                                -----------   --------------
Total issued                      4,976,570       56,677,095
Shares redeemed                  (1,448,119)     (16,481,616)
                                -----------   --------------
Net increase                      3,528,451   $   40,195,479
                                ===========   ==============

Intermediate Term Portfolio

Class A Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                       8,879,479   $  101,009,465
Shares issued to shareholders
in reinvestment of dividends        536,407        6,105,063
                                -----------   --------------
Total issued                      9,415,886      107,114,528
Shares redeemed                 (13,031,273)    (148,126,147)
                                -----------   --------------
Net decrease                     (3,615,387)  $  (41,011,619)
                                ===========   ==============

Intermediate Term Portfolio

Class A Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                       7,219,026   $   82,894,354
Shares issued to shareholders
in reinvestment of dividends        697,766        8,005,089
                                -----------   --------------
Total issued                      7,916,792       90,899,443
Shares redeemed                  (7,646,836)     (87,796,852)
                                -----------   --------------
Net increase                        269,956   $    3,102,591
                                ===========   ==============

Intermediate Term Portfolio

Class B Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                       4,113,147   $   46,806,563
Shares issued to shareholders
in reinvestment of dividends        648,555        7,381,806
                                -----------   --------------
Total issued                      4,761,702       54,188,369
Automatic conversion of shares     (121,230)      (1,377,088)
Shares redeemed                 (10,958,440)    (124,411,387)
                                -----------   --------------
Net decrease                     (6,317,968)  $  (71,600,106)
                                ===========   ==============


                                      90
<PAGE>
 
Intermediate Term Portfolio

Class B Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                       8,947,464   $  102,809,743
Shares issued to shareholders
in reinvestment of dividends        750,062        8,601,518
                                -----------   --------------
Total issued                      9,697,526      111,411,261
Automatic conversion of shares      (94,088)      (1,066,696)
Shares redeemed                  (8,841,519)    (101,696,552)
                                -----------   --------------
Net increase                        761,919   $    8,648,013
                                ===========   ==============

Intermediate Term Portfolio

Class C Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                         217,464   $    2,473,168
Shares issued to shareholders
in reinvestment of dividends         26,883          305,857
                                -----------   --------------
Total issue                         244,347        2,779,025
Shares redeemed                  (1,006,967)     (11,417,394)
                                -----------   --------------
Net decrease                       (762,620)  $   (8,638,369)
                                ===========   ==============

Intermediate Term Portfolio

Class C Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                         807,328   $    9,279,082
Shares issued to shareholders
in reinvestment of dividends         36,273          415,777
                                -----------   --------------
Total issued                        843,601        9,694,859
Shares redeemed                    (536,033)      (6,197,495)
                                -----------   --------------
Net increase                        307,568   $    3,497,364
                                ===========   ==============

Intermediate Term Portfolio

Class D Shares for the Year                         Dollar
Ended September 30, 1997            Shares          Amount

Shares sold                       4,009,184   $   45,468,396
Automatic conversion of
shares                              121,231        1,377,088
Shares issued to shareholders
in reinvestment of dividends        167,855        1,910,367
                                -----------   --------------
Total issued                      4,298,270       48,755,851
Shares redeemed                  (1,651,097)     (18,758,340)
                                -----------   --------------
Net increase                      2,647,173   $   29,997,511
                                ===========  ===============

Intermediate Term Portfolio

Class D Shares for the Year                         Dollar
Ended September 30, 1996            Shares          Amount

Shares sold                       2,494,925   $   28,661,987
Automatic conversion of
shares                               94,087        1,066,696
Shares issued to shareholders
in reinvestment of dividends         95,536        1,090,298
                                -----------   --------------
Total issued                      2,684,548       30,818,981
Shares redeemed                  (1,156,648)     (13,279,067)
                                -----------   --------------
Net increase                      1,527,900   $   17,539,914
                                ===========   ==============

5. Loaned Securities:
At September 30, 1997, the Investment Grade Portfolio held US
Treasury Bonds/Notes having an aggregate value of approximately
$35,401,000 as collateral for Portfolio securities loaned, having a
market value of approximately $34,707,000. The Intermediate Term
Portfolio held US Treasury Bonds/Notes having an aggregate value of
approximately $12,146,000 as collateral for Portfolio securities
loaned, having a market value of approximately $11,817,000.


6. Capital Loss Carryforward:
At September 30, 1997, the Fund had a capital loss carryforward of
approximately $36,992,000 in the Investment Grade Portfolio, of
which $34,388,000 expires in 2003 and $2,604,000 expires in 2005
and approximately $10,983,000 in the Intermediate Term Portfolio,
of which $10,707,000 expires in 2003 and $276,000 expires in 2005.
These amounts will be available to offset like amounts of any future
taxable gains.

                                      91
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>   
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
Investment Objectives and Policies........................................   2
 Transactions in Futures and Options Thereon..............................   2
 Options on Debt Securities...............................................   3
 Risk Factors in Transactions in Futures and Options Thereon..............   5
Investment Restrictions...................................................   6
Management of the Fund....................................................   9
 Directors and Officers...................................................   9
 Investment Advisory Arrangements.........................................  11
 Duration and Termination.................................................  14
 Transfer Agency Services Arrangements....................................  14
Determination of Net Asset Value..........................................  15
Portfolio Transactions....................................................  16
 Portfolio Turnover.......................................................  17
Purchase of Shares........................................................  17
 Alternative Sales Arrangements...........................................  17
 Initial Sales Charge Alternative--Class A and Class D Shares.............  18
 Reduced Initial Sales Charges--Class A and Class D Shares................  19
 Employer-Sponsored Retirement or Savings Plans and Certain Other
  Arrangements............................................................  23
 Distribution Plan........................................................  23
 Limitations on the Payment of Deferred Sales Charges.....................  24
Redemption of Shares......................................................  26
 Repurchase...............................................................  26
 Reinstatement Privilege..................................................  27
 Deferred Sales Charge--Class B and Class C Shares........................  27
Dividends, Distributions and Taxes........................................  29
 Dividends and Distributions..............................................  29
 Federal Income Taxes.....................................................  29
 Tax Treatment of Transactions in Options on Debt Securities, Futures
  Contracts and Options Thereon...........................................  30
Shareholder Services......................................................  31
 Investment Account.......................................................  31
 Automatic Investment Plans...............................................  32
 Fee-Based Programs.......................................................  32
 Automatic Reinvestment of Dividends and Capital Gains Distributions......  33
 Systematic Withdrawal Plans..............................................  33
Retirement Plans..........................................................  34
Exchange Privilege........................................................  35
Performance Data..........................................................  37
Additional Information....................................................  40
 Organization of the Fund.................................................  40
 Computation of Offering Price Per Share..................................  41
 Independent Auditors.....................................................  42
 Custodian................................................................  42
 Transfer Agent...........................................................  42
 Legal Counsel............................................................  42
 Reports to Shareholders..................................................  42
 Appendix.................................................................  43
 Interest Rate Futures, Options Thereon and Options on Debt Securities....  43
Independent Auditors' Report..............................................  46
Financial Statements......................................................  47
Independent Auditors' Report..............................................  69
Financial Statements......................................................  70
</TABLE>    
                                                              
                                                           Code #10210-0198     
 
[LOGO] MERRILL LYNCH

Merrill Lynch
Corporate Bond Fund Inc.

[ART]

STATEMENT OF
ADDITIONAL
INFORMATION
    
January 22, 1998     

Distributor:
Merrill Lynch
Funds Distributor, Inc. 
<PAGE>
 
                           PART C. OTHER INFORMATION
 
ITEM 24. FINANCIAL STATEMENTS AND EXHIBITS
 
  (a) FINANCIAL STATEMENTS
 
     Contained in Part A:
     
     Financial Highlights for each of the years in the ten-year period ended
     September 30, 1997.     
 
     Contained in Part B:
     
     Schedules of Investments as of September 30, 1997.     
     
     Statements of Assets and Liabilities as of September 30, 1997.     
     
     Statements of Operations for the year ended September 30, 1997.     
     
     Statements of Changes in Net Assets for each of the years in the two-
     year period ended September 30, 1997.     
     
     Financial Highlights for each of the years in the five-year period ended
     September 30, 1997.     
 
  (b) EXHIBITS
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                                DESCRIPTION
 -------                               -----------
 <C>     <S>
  1(a)   --Articles of Incorporation (incorporated by reference to Exhibit 1 to
          Post-Effective Amendment No. 5 to Registrant's Registration Statement
          on Form N-1A) ("Post-Effective Amendment No. 5").
   (b)   --Articles of Amendment (incorporated by reference to Exhibit 1(b) to
          Post-Effective Amendment No. 13 to Registrant's Registration
          Statement on Form N-1A) ("Post-Effective Amendment No. 13").
   (c)   --Articles Supplementary reclassifying shares of Intermediate Term
          Portfolio Series Common Stock (incorporated by reference to Exhibit
          1(c) to Post-Effective Amendment No. 16).
  2      --By-Laws (incorporated by reference to Exhibit 2 to Post-Effective
          Amendment No. 21 to Registrant's Registration Statement on Form N-
          1A).
  3      --Inapplicable.
  4(a)   --Specimen certificates for Class A shares of High Quality Portfolio
          Series and High Income Portfolio Series Common Stock of Registrant
          (incorporated by reference to Exhibit 4(a) filed with Post-Effective
          Amendment No. 13).
   (b)   --Specimen certificates for Class B shares of High Quality Portfolio
          Series and High Income Portfolio Series Common Stock of Registrant
          (incorporated by reference to Exhibit 4(b) filed with Post-Effective
          Amendment No. 13).
  5(a)   --Form of Investment Advisory Agreement between Registrant and Fund
          Asset Management, Inc. (incorporated by reference to Exhibit 5 filed
          with Post-Effective Amendment No. 5).
  5(b)   --Form of Investment Sub-Advisory Agreement between Fund Asset
          Management, L.P. and Merrill Lynch Asset Management U.K. Limited
          (incorporated by reference to Exhibit 5(b) filed with Post-Effective
          Amendment No. 23).
  6(a)   --Form of Class A Distribution Agreement between Registrant and
          Merrill Lynch Funds Distributor, Inc. (incorporated by reference to
          Exhibit 6(a) filed with Post-Effective Amendment No. 20).
   (b)   --Form of Selected Dealers Agreement between Registrant and selected
          dealers (incorporated by reference to Exhibit 6(b) filed with Post-
          Effective Amendment No. 20).
</TABLE>    
 
                                      C-1
<PAGE>
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                                DESCRIPTION
 -------                               -----------
 <C>     <S>
   (c)   --Form of Class B Distribution Agreement between Registrant and
          Merrill Lynch Funds Distributor, Inc. (including form of Selected
          Dealer Agreement) (incorporated by reference to Exhibit 6(c) filed
          with Post-Effective Amendment No. 13).
   (d)   --Form of Amended Class B Distribution Agreement between Registrant
          and Merrill Lynch Funds Distributor, Inc. (including form of Selected
          Dealer Agreement) (incorporated by reference to Exhibit 6(d) filed
          with Post-Effective Amendment No. 20).
   (e)   --Form of Class C Distribution Agreement between Registrant and
          Merrill Lynch Funds Distributor, Inc. (including form of Selected
          Dealer Agreement) (incorporated by reference to Exhibit 6(e) filed
          with Post-Effective Amendment No. 20).
   (f)   --Form of Class D Distribution Agreement between Registrant and
          Merrill Lynch Funds Distributor, Inc. (including form of Selected
          Dealer Agreement) (incorporated by reference to Exhibit 6(f) filed
          with Post-Effective Amendment No. 20).
  7      --Inapplicable.
  8      --Form of Custodian Agreement between Registrant and State Street Bank
          and Trust Company (incorporated by reference to Exhibit A.8 filed
          with Amendment No. 2 to Registrant's Registration Statement on Form
          S-5) ("Post-Effective Amendment No. 2").
  9(a)   --Form of Transfer Agency, Dividend Disbursing Agency and Shareholder
          Servicing Agency Agreement between Registrant and Financial Data
          Services, Inc. (incorporated by reference to Exhibit 9(a) to Post-
          Effective Amendment No. 12).
   (b)   --Form of Agreement relating to the use of the "Merrill Lynch" name
          (incorporated by reference to Exhibit A.9(c) filed with Amendment No.
          2).
 10      --Inapplicable (filed with Rule 24f-2 Notice).
 11      --Consent of Deloitte & Touche LLP, independent accountants for the
          Registrant (filed herewith).
 12      --Inapplicable.
 13(a)   --Investment Letter--High Income Portfolio--Class C and Class D shares
          (incorporated by reference to Exhibit 13(a) filed with Post-Effective
          Amendment No. 20).
   (b)   --Investment Letter--Investment Grade Portfolio Class C and Class D
          shares (incorporated by reference to Exhibit 13(b) filed with Post-
          Effective Amendment No. 20).
   (c)   --Investment Letter--Intermediate Term Portfolio Class C and Class D
          shares (incorporated by reference to Exhibit 13(c) filed with Post-
          Effective Amendment No. 20).
 14(a)   --Prototype Individual Retirement Account Plan and Keogh Plan
          available from Merrill Lynch, Pierce, Fenner & Smith Incorporated
          (incorporated by reference to Exhibit 14 to Pre-Effective Amendment
          No. 1 to the Registration Statement on Form N-1A (File No. 2-74584)
          of Merrill Lynch Retirement Series Trust, filed on January 26, 1982).
   (b)   --Prototype Merrill Lynch Basic Retirement Plan available from Merrill
          Lynch, Pierce, Fenner & Smith Incorporated (incorporated by reference
          to Exhibit 14 to Post-Effective Amendment No. 3 to the Registration
          Statement on Form N-1A (File No.2-74584) of Merrill Lynch Retirement
          Series Trust, filed on December 29, 1983).
 15(a)   --Class B Distribution Plan of Registrant (incorporated by reference
          to Exhibit 15 filed with Post-Effective Amendment No. 13).
   (b)   --Class B Amended Distribution Plan of Registrant (including
          Distribution Plan Sub-Agreement) (incorporated by reference to
          Exhibit 15(b) filed with Post-Effective Amendment No. 18).
</TABLE>    
 
                                      C-2
<PAGE>
 
<TABLE>   
<CAPTION>
EXHIBIT
NUMBER                                             DESCRIPTION
- -------                                            -----------
<S>      <C>
  (c)    --Form of Class C Distribution Plan of Registrant (including Class C Distribution Plan
          Sub-Agreement) (incorporated by reference to Exhibit 15(c) filed with Post-Effective Amendment
          No. 20).
  (d)    --Form of Class D Distribution Plan of Registrant (including Class D Distribution Plan
          Sub-Agreement) (incorporated by reference to Exhibit 15(d) filed with Post-Effective Amendment
          No. 20).
16       --Schedule for computation of each performance quotation provided in the Registration Statement
          in response to Item 22 (for Class A shares and Class B shares--incorporated by reference to
          Exhibit 15 filed with Post-Effective Amendment No. 13) and (for Class C shares and Class D
          shares--incorporated by reference to Exhibit 16 filed with Post-Effective Amendment No. 21).
17(a)    --Financial Data Schedule--High Income Portfolio--Class A shares
  (b)    --Financial Data Schedule--Investment Grade Portfolio--Class A shares
  (c)    --Financial Data Schedule--Intermediate Term Portfolio--Class A shares
  (d)    --Financial Data Schedule--High Income Portfolio--Class B shares
  (e)    --Financial Data Schedule--Investment Grade Portfolio--Class B shares
  (f)    --Financial Data Schedule--Intermediate Term Portfolio--Class B shares
  (g)    --Financial Data Schedule--High Income Portfolio--Class C shares
  (h)    --Financial Data Schedule--Investment Grade Portfolio--Class C shares
  (i)    --Financial Data Schedule--Intermediate Term Portfolio--Class C shares
  (j)    --Financial Data Schedule--High Income Portfolio--Class D shares
  (k)    --Financial Data Schedule--Investment Grade Portfolio--Class D shares
  (l)    --Financial Data Schedule--Intermediate Term Portfolio--Class D shares
</TABLE>    
 
ITEM 25. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT
 
  Inapplicable.
 
                                      C-3
<PAGE>
 
ITEM 26. NUMBER OF HOLDERS OF SECURITIES
 
<TABLE>   
<CAPTION>
                                                                     NUMBER OF
                                                                     HOLDERS AT
                                                                      NOVEMBER
                              TITLE OF CLASS                          30, 1997
                              --------------                         ----------
      <S>                                                            <C>
      High Income Portfolio Class A common stock, par value $0.10
       per share....................................................   57,377
      High Income Portfolio Class B common stock, par value
       $0.10 per share..............................................  224,064
      High Income Portfolio Class C common stock, par value
       $0.10 per share..............................................   33,742
      High Income Portfolio Class D common stock, par value $0.10
       per share....................................................   16,941
      Investment Grade Portfolio Class A common stock, par value
       $0.10 per share..............................................   52,529
      Investment Grade Portfolio Class B common stock, par value
       $0.10 per share..............................................   37,922
      Investment Grade Portfolio Class C common stock, par value
       $0.10 per share..............................................    3,744
      Investment Grade Portfolio Class D common stock, par value
       $0.10 per share..............................................    9,163
      Intermediate Term Portfolio Class A common stock, par value
       $0.10 per share..............................................   24,365
      Intermediate Term Portfolio Class B common stock, par value
       $0.10 per share..............................................   11,414
      Intermediate Term Portfolio Class C common stock, par value
       $0.10 per share..............................................      149
      Intermediate Term Portfolio Class D common stock, par value
       $0.10 per share..............................................    7,302
</TABLE>    
     --------
     Note: The number of holders shown in the table above includes
           holders of record plus beneficial owners, whose shares
           are held of record by Merrill Lynch, Pierce, Fenner &
           Smith Incorporated.
 
ITEM 27. INDEMNIFICATION
 
  Under Section 2-418 of the Maryland General Corporation Law, with respect to
any proceeding against a present or former director, officer, agent, or
employee of the Registrant (a "corporate representative"), except a proceeding
brought by or on behalf of the Registrant, the Registrant may indemnify the
corporate representative against expenses, including attorneys' fees and
judgments, fines, and amounts paid in settlement actually and reasonably
incurred by the corporate representative in connection with the proceeding, if:
(i) he acted in good faith and in a manner he reasonably believed to be in or
not opposed to the best interests of the Registrant; and (ii) with respect to
any criminal proceeding, he had no reasonable cause to believe his conduct was
unlawful. The Registrant is also authorized under Section 2-418 of the Maryland
General Corporation Law to indemnify a corporate representative under certain
circumstances against expenses incurred in connection with the defense of a
suit or action by or in the right of the Registrant. Under the Distribution
Agreements, the Registrant has agreed to indemnify the Distributor against any
loss, liability, claim, damage or expense arising out of any untrue statement
of a material fact, or an omission to state a material fact, in any
registration statement, prospectus or report to shareholders of the Registrant.
Reference is made to Article VI of Registrant's By-Laws, Section 2-418 of the
Maryland General Corporation Law and Section 9 of the Class A, Class B, Class C
and Class D Distribution Agreements.
          
ITEM 28.  BUSINESS AND OTHER CONNECTIONS OF MANAGER.     
   
  Fund Asset Management, L.P. ("FAM" or the "Investment Adviser"), acts as the
investment adviser for the following open-end registered investment companies:
CBA Money Fund, CMA Government Securities Fund, CMA Money Fund, CMA Multi-State
Municipal Series Trust, CMA Tax-Exempt Fund,     
 
                                      C-4
<PAGE>
 
   
CMA Treasury Fund, The Corporate Fund Accumulation Program, Inc., Financial
Institutions Series Trust, Merrill Lynch Basic Value Fund, Inc., Merrill Lynch
California Municipal Series Trust, Merrill Lynch Corporate Bond Fund, Inc.,
Merrill Lynch Emerging Tigers Fund, Inc., Merrill Lynch Federal Securities
Trust, Merrill Lynch Funds for Institutions Series, Merrill Lynch Multi-State
Limited Maturity Municipal Series Trust, Merrill Lynch Multi-State Municipal
Series Trust, Merrill Lynch Municipal Bond Fund, Inc., Merrill Lynch Phoenix
Fund, Inc., Merrill Lynch Special Value Fund, Inc., Merrill Lynch World Income
Fund, Inc. and The Municipal Fund Accumulation Program, Inc.; and the following
closed-end registered investment companies: Apex Municipal Fund, Inc.,
Corporate High Yield Fund, Inc., Corporate High Yield Fund II, Inc., Debt
Strategies Fund, Inc., Income Opportunities Fund 1999, Inc., Income
Opportunities Fund 2000, Inc., Merrill Lynch Municipal Strategy Fund, Inc.,
MuniAssets Fund, Inc., MuniEnhanced Fund, Inc., MuniHoldings California Insured
Fund, Inc., MuniHoldings Florida Insured Fund, MuniHoldings Fund, Inc.,
MuniHoldings New York Insured Fund, Inc., MuniInsured Fund, Inc., MuniVest
Fund, Inc., MuniVest Fund II, Inc., MuniVest Florida Fund, MuniVest Michigan
Insured Fund, Inc., MuniVest New Jersey Fund, Inc., MuniVest Pennsylvania
Insured Fund, Inc., MuniYield Arizona Fund, Inc., MuniYield California Fund,
Inc., MuniYield California Insured Fund, Inc., MuniYield California Insured
Fund II, Inc., MuniYield Florida Fund, MuniYield Florida Insured Fund,
MuniYield Fund, Inc., MuniYield Insured Fund, Inc., MuniYield Michigan Fund,
Inc., MuniYield Michigan Insured Fund, Inc., MuniYield New Jersey Fund, Inc.,
MuniYield New Jersey Insured Fund, Inc., MuniYield New York Insured Fund Inc.,
MuniYield New York Insured Fund II, Inc., MuniYield Pennsylvania Fund,
MuniYield Quality Fund, Inc., MuniYield Quality Fund II, Inc., Senior High
Income Portfolio, Inc., Taurus MuniCalifornia Holdings, Inc., Taurus MuniNew
York Holdings, Inc. and Worldwide DollarVest Fund, Inc.     
   
  Merrill Lynch Asset Management, L.P. ("MLAM"), acts as the investment adviser
for the following open-end registered investment companies: Merrill Lynch
Adjustable Rate Securities Fund, Inc., Merrill Lynch Americas Income Fund,
Inc., Merrill Lynch Asset Builder Program, Inc., Merrill Lynch Asset Growth
Fund, Inc., Merrill Lynch Asset Income Fund, Inc., Merrill Lynch Capital Fund,
Inc., Merrill Lynch Developing Capital Markets Fund, Inc., Merrill Lynch
Convertible Fund, Inc., Merrill Lynch Dragon Fund, Inc., Merrill Lynch
EuroFund, Merrill Lynch Fundamental Growth Fund, Inc., Merrill Lynch Fund For
Tomorrow, Inc., Merrill Lynch Global Allocation Fund, Inc., Merrill Lynch
Global Bond Fund for Investment and Retirement, Merrill Lynch Global
Convertible Fund, Inc., Merrill Lynch Global Holdings, Inc., Merrill Lynch
Global Growth Fund, Inc., Merrill Lynch Global Resources Trust, Merrill Lynch
Global SmallCap Fund, Inc., Merrill Lynch Global Utility Fund, Inc., Merrill
Lynch Global Value Fund, Inc., Merrill Lynch Growth Fund, Merrill Lynch
Healthcare Fund, Inc., Merrill Lynch Intermediate Government Bond Fund, Merrill
Lynch International Equity Fund, Merrill Lynch Latin America Fund, Inc.,
Merrill Lynch Middle East/Africa Fund, Inc., Merrill Lynch Municipal Series
Trust, Merrill Lynch Pacific Fund, Inc., Merrill Lynch Ready Assets Trust,
Merrill Lynch Real Estate Fund, Inc., Merrill Lynch Retirement Series Trust,
Merrill Lynch Series Fund, Inc., Merrill Lynch Short-Term Global Income Fund,
Inc., Merrill Lynch Strategic Dividend Fund, Merrill Lynch Technology Fund,
Inc., Merrill Lynch U.S. Treasury Money Fund, Merrill Lynch U.S.A. Government
Reserves, Merrill Lynch Utility Income Fund, Inc., Merrill Lynch Variable
Series Funds, Inc. and Hotchkis and Wiley Funds (advised by Hotchkis and Wiley,
a division of MLAM); and for the following closed-end registered investment
companies: Merrill Lynch High Income Municipal Bond Fund, Inc. and Merrill
Lynch Senior Floating Rate Fund, Inc. MLAM also acts as sub-adviser to Merrill
Lynch World Strategy Portfolio and Merrill Lynch Basic Value Equity Portfolio,
two investment portfolios of EQ Advisory Trust.     
   
  The address of each of these investment companies is P.O. Box 9011,
Princeton, New Jersey 08543-9011, except that the address of Merrill Lynch
Funds for Institutions Series and Merrill Lynch Intermediate Government Bond
Fund is One Financial Center, 23rd Floor, Boston, Massachusetts 02111-2646. The
address of the Manager, FAM and Princeton Services, Inc. ("Princeton
Services"), and Princeton Administrators, L.P. is also P.O. Box 9011,
Princeton, New Jersey 08543-9011. The address of Merrill Lynch Funds
Distributor, Inc. ("MLFD") is P.O. Box 9081, Princeton, New Jersey 08543-9081.
The address of Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill
Lynch") and Merrill Lynch & Co., Inc. ("ML     
 
                                      C-5
<PAGE>
 
   
& Co.") is North Tower, World Financial Center, 250 Vesey Street, New York, New
York 10281-1201. The address of the Fund's transfer agent, Merrill Lynch
Financial Data Services, Inc. ("MLFDS"), is 4800 Deer Lake Drive East,
Jacksonville, Florida 32246-6484.     
   
  Set forth below is a list of each executive officer and partner of the
Manager indicating each business, profession, vocation or employment of a
substantial nature in which each such person or entity has been engaged since
September 30, 1995, for his or her own account or in the capacity of director,
officer, partner or trustee. In addition, Mr. Zeikel is President, Mr. Glenn is
Executive Vice President and Mr. Richard is Treasurer of substantially all of
the investment companies described in the first two paragraphs of this Item 28
and Messrs. Giordano, Harvey, Kirstein and Monagle are directors or officers of
one or more of such companies.     
 
<TABLE>   
<CAPTION>
                                                                OTHER SUBSTANTIAL BUSINESS,
                                         POSITION                   PROFESSION, VOCATION
             NAME                      WITH MANAGER                    OR EMPLOYMENT
             ----                      ------------             ---------------------------
 <C>                           <C>                           <S>
 ML & Co. ...................  Limited Partner               Financial Services Holding
                                                             Company; Limited Partner of MLAM
 Princeton Services..........  General Partner               General Partner of MLAM.
 Arthur Zeikel...............  Chairman (since 1997),        Chairman (since 1997) and
                               President (1977 to 1997)      President (1977 to 1997) of MLAM;
                                                             President and Director of
                                                             Princeton Services; Director of
                                                             MLFDS; Executive Vice President
                                                             of ML & Co.
 Jeffrey M. Peek.............  President                     President (since 1997) of MLAM;
                               (since 1997)                  President and Director (since
                                                             1997) of MLFDS; Executive Vice
                                                             President of ML & Co.
 Terry K. Glenn..............  Executive Vice President      Executive Vice President of MLAM;
                                                             Executive Vice President and
                                                             Director of Princeton Services;
                                                             President and Director of MLFDS;
                                                             President of Princeton
                                                             Administrators, L.P.
 Linda L. Federici...........  Senior Vice President         Senior Vice President of MLAM;
                                                             Senior Vice President of
                                                             Princeton Services
 Philip L. Kirstein..........  Senior Vice President,        Senior Vice President, General
                               General Counsel and Secretary Counsel and Secretary of MLAM;
                                                             Senior Vice President, General
                                                             Counsel, Director and Secretary
                                                             of Princeton Services
 Vincent R. Giordano.........  Senior Vice President         Senior Vice President of MLAM;
                                                             Senior Vice President of
                                                             Princeton Services
 Elizabeth A. Griffin........  Senior Vice President         Senior Vice President of MLAM and
                                                             Senior Vice President of
                                                             Princeton Services
 Norman R. Harvey............  Senior Vice President         Senior Vice President of MLAM;
                                                             Senior Vice President of
                                                             Princeton Services
</TABLE>    
 
                                      C-6
<PAGE>
 
<TABLE>   
<CAPTION>
                                                        OTHER SUBSTANTIAL BUSINESS,
                                     POSITION               PROFESSION, VOCATION
             NAME                  WITH MANAGER                OR EMPLOYMENT
             ----                  ------------         ---------------------------
 <C>                           <C>                   <S>
 Michael J. Hennewinkel......  Senior Vice President Senior Vice President of MLAM;
                                                     Senior Vice President of
                                                     Princeton Services
 Ronald M. Kloss.............  Senior Vice President Senior Vice President and
                               and Controller        Controller of MLAM; Senior Vice
                                                     President and Controller of
                                                     Princeton Services
 Debra Landsman-Yaros........  Senior Vice President Senior Vice President of MLAM;
                                                     Vice President of MLFD and Senior
                                                     Vice President of Princeton
                                                     Services
 Stephen M.M. Miller.........  Senior Vice President Executive Vice President of
                                                     Princeton Administrators, L.P.;
                                                     Senior Vice President of
                                                     Princeton Services
 Joseph T. Monagle, Jr. .....  Senior Vice President Senior Vice President of MLAM;
                                                     Senior Vice President of
                                                     Princeton Services
 Michael L. Quinn............  Senior Vice President Senior Vice President of MLAM;
                                                     Senior Vice President of
                                                     Princeton Services; Managing
                                                     Director and First Vice President
                                                     of Merrill Lynch from 1989 to
                                                     1995
 Richard L. Reller...........  Senior Vice President Senior Vice President of MLAM;
                                                     Senior Vice President of
                                                     Princeton Services and Director
                                                     of MLFD
 Gerald M. Richard...........  Senior Vice President Senior Vice President and
                               and Treasurer         Treasurer of MLAM; Senior Vice
                                                     President and Treasurer of
                                                     Princeton Services; Vice
                                                     President and Treasurer of MLFD
 Gregory D. Upah.............  Senior Vice President Senior Vice President of MLAM and
                                                     Senior Vice President of
                                                     Princeton Services
 Ronald L. Welburn...........  Senior Vice President Senior Vice President of MLAM;
                                                     Senior Vice President of
                                                     Princeton Services
</TABLE>    
   
  (b) Merrill Lynch Asset Management U.K. Limited ("MLAM U.K.") acts as sub-
adviser for the following registered investment companies; Corporate High Yield
Fund, Inc., Corporate High Yield Fund II, Inc., Income Opportunities Fund 1999,
Inc., Income Opportunities Fund 2000, Inc., Merrill Lynch Americas Income Fund
Inc., Merrill Lynch Asset Builder Program, Inc., Merrill Lynch Asset Growth
Fund, Inc., Merrill Lynch Asset Income Fund, Inc., Merrill Lynch Basic Value
Fund, Inc., Merrill Lynch Capital Fund, Inc., Merrill Lynch Consults
International Portfolio, Merrill Lynch Convertible Fund, Inc., Merrill Lynch
Corporate Bond Fund, Inc., Merrill Lynch Developing Capital Markets, Inc.,
Merrill Lynch Dragon Fund, Inc., Merrill Lynch Emerging Tigers Fund, Inc.,
Merrill Lynch EuroFund, Merrill Lynch Fundamental Growth Fund, Inc., Merrill
Lynch Fund For Tomorrow, Inc., Merrill Lynch Global Allocation Fund, Inc.,
Merrill Lynch Global Bond Fund for Investment and Retirement, Merrill Lynch
Global Convertible Fund, Inc., Merrill Lynch Global Holdings, Inc., Merrill
Lynch Global Growth Fund, Inc., Merrill Lynch Global Resources Trust, Merrill
Lynch Global SmallCap Fund, Inc., Merrill Lynch Global Utility Fund, Inc.,
Merrill Lynch Global Value Fund, Inc., Merrill Lynch Growth Fund, Merrill Lynch
Healthcare Fund, Inc., Merrill Lynch International Equity Fund, Merrill Lynch
Latin America Fund, Inc., Merrill Lynch Middle East/Africa Fund, Inc., Merrill
Lynch Pacific Fund, Inc., Merrill Lynch Phoenix     
 
                                      C-7
<PAGE>
 
   
Fund, Inc., Merrill Lynch Series Trust Fund, Inc., Merrill Lynch Short-Term
Global Income Fund, Inc., Merrill Lynch Real Estate Fund, Inc., Merrill Lynch
Special Value Fund, Inc., Merrill Lynch Strategic Dividend Fund, Merrill Lynch
Technology Fund, Inc., Merrill Lynch Utility Income Fund, Inc., Merrill Lynch
Variable Series Funds, Inc., Merrill Lynch World Income Fund, Inc., and
Worldwide DollarVest Fund, Inc. The address of each of these investment
companies is P.O. Box 9011, Princeton, New Jersey 08543-9011. The address of
MLAM U.K. is Milton Gate, 1 Moor Lane, London EC2Y 9HA, England.     
 
  Set forth below is a list of each executive officer and director of MLAM U.K.
indicating each business, profession, vocation or employment of a substantial
nature in which each such person has been engaged since July 1, 1995, for his
or her own account or in the capacity of director, officer, partner or trustee.
In addition, Messrs. Zeikel, Albert and Richard are officers of one or more of
the registered investment companies listed in the first two paragraphs of this
Item 28:
 
<TABLE>   
<CAPTION>
                                                              OTHER SUBSTANTIAL BUSINESS,
                                      POSITION WITH               PROFESSION, VOCATION
             NAME                       MLAM U.K.                    OR EMPLOYMENT
             ----                     -------------           ---------------------------
 <C>                           <C>                         <S>
 Arthur Zeikel...............  Director and Chairman       President of the Manager and FAM;
                                                           President and Director of
                                                           Princeton Services, Executive
                                                           Vice President of ML & Co.
 Alan J. Albert..............  Senior Managing Director    Vice President of the Manager
 Terry K. Glenn..............  Director                    Director of Merrill Lynch Europe
                                                           PLC; General Counsel of Merrill
                                                           Lynch International Private
                                                           Banking Group
 Gerald M. Richard...........  Senior Vice President       Senior Vice President and
                                                           Treasurer of the Manager and FAM;
                                                           Senior Vice President and
                                                           Treasurer of Princeton Services;
                                                           Vice President and Treasurer of
                                                           the MLFD
 Carol Ann Langham...........  Company Secretary           None
 Debra Anne Searle...........  Assistant Company Secretary None
</TABLE>    
 
ITEM 29.   PRINCIPAL UNDERWRITERS.
 
  (a) MLFD acts as the principal underwriter for the Registrant and for each of
the open-end investment companies referred to in the first two paragraphs of
Item 28 except CBA Money Fund, CMA Government Securities Fund, CMA Money Fund,
CMA Multi-State Municipal Series Trust, CMA Tax-Exempt Fund, CMA Treasury Fund,
The Corporate Fund Accumulation Program, Inc. and The Municipal Fund
Accumulation Program, Inc., and MLFD also acts as the principal underwriter for
the following closed-end investment companies: Merrill Lynch High Income
Municipal Bond Fund, Inc., Merrill Lynch Municipal Strategy Fund, Inc. and
Merrill Lynch Senior Floating Rate Fund, Inc.
   
  (b) Set forth below is information concerning each director and officer of
the Distributor. The principal business address of each such person is P.O. Box
9011, Princeton, New Jersey 08543-9081, except that the address of Messrs.
Crook, Aldrich, Brady, Breen, Fatseas, and Wasel is One Financial Center, 23rd
Floor, Boston, Massachusetts 02111-2665.     
 
 
                                      C-8
<PAGE>
 
<TABLE>   
<CAPTION>
                            POSITION(S) AND OFFICE(S)    POSITIONS AND OFFICES
           NAME                  WITH DISTRIBUTOR           WITH REGISTRANT
           ----             -------------------------    ---------------------
<S>                        <C>                          <C>
Terry K. Glenn............ President and Director       Executive Vice President
Richard L. Reller......... Director                               None
Thomas J. Verage.......... Director                               None
William E. Aldrich........ Senior Vice President                  None
Robert W. Crook........... Senior Vice President                  None
Michael J. Brady.......... Vice President                         None
William M. Breen.......... Vice President                         None
Michael G. Clark.......... Vice President                         None
James T. Fatseas.......... Vice President                         None
Debra W. Landsman-Yaros... Vice President                         None
Michelle T. Lau........... Vice President                         None
Gerald M. Richard......... Vice President and Treasurer        Treasurer
Salvatore Venezia......... Vice President                         None
William Wasel............. Vice President                         None
Robert Harris............. Secretary                              None
</TABLE>    
 
  (c) Not applicable.
 
ITEM 30.  LOCATION OF ACCOUNTS AND RECORDS.
 
  All accounts, books and other documents required to be maintained by Section
31(a) of the Investment Company Act of 1940 and the rules thereunder are
maintained at the offices of the Registrant, 800 Scudders Mill Road,
Plainsboro, New Jersey 08536 and its transfer agent, Merrill Lynch Financial
Data Services, Inc., 4800 Deer Lake Drive East, Jacksonville, Florida 32246-
6484.
 
ITEM 31.  MANAGEMENT SERVICES.
 
  Other than as set forth under the caption "Management of the Fund--Management
and Advisory Arrangements" in the Prospectus constituting Part A of the
Registration Statement and under "Management of the Fund--Management and
Advisory Arrangements" in the Statement of Additional Information constituting
Part B of the Registration Statement, the Registrant is not a party to any
management-related service contract.
 
ITEM 32.  UNDERTAKINGS.
 
  (a) Not applicable.
 
  (b) Not applicable.
 
  (c) Registrant undertakes to furnish to each person to whom a prospectus is
delivered with a copy of the Registrant's latest annual report to shareholders,
upon request and without charge.
 
  (d) The Fund, if requested to do so by the holders of at least 10% of the
Fund's outstanding shares, will call a meeting of shareholders for the purpose
of voting upon the question of removal of a director or directors and will
assist communications with other shareholders as required by Section 16(c) of
the Investment Company Act of 1940.
 
                                      C-9
<PAGE>
 
                                   SIGNATURES
   
  Pursuant to the requirements of the Securities Act of 1933 and the Investment
Company Act of 1940, the Registrant certifies that it meets all of the
requirements for effectiveness of this Post-Effective Amendment to its
Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933
and has duly caused this Amendment to its Registration Statement to be signed
on its behalf by the undersigned, thereunto duly authorized, in the Township of
Plainsboro and State of New Jersey on the 21th day of January, 1998.     
 
                                          MERRILL LYNCH CORPORATE BOND FUND,
                                           INC. (Registrant)
 
                                          By:        /s/ Arthur Zeikel
                                            -----------------------------------
                                                     ARTHUR ZEIKEL, PRESIDENT
                                                     (PRINCIPAL EXECUTIVE
                                                     OFFICER)
 
  Pursuant to the requirements of the Securities Act of 1933, this Amendment to
the Registrant's Registration Statement has been signed below by the following
persons in the capacities and on the dates indicated.
 
         SIGNATURE                         TITLE                     DATE
 
<TABLE>    
<S>  <C>
     /s/ Arthur Zeikel             President and Director        January 21,
- ----------------------------   (Principal Executive Officer)         1998
       ARTHUR ZEIKEL
 
             *                      Treasurer (Principal
- ----------------------------             Financial
     GERALD M. RICHARD            and Accounting Officer)
 
             *                            Director
- ----------------------------
      RONALD W. FORBES
 
             *                            Director
- ----------------------------
   CYNTHIA A. MONTGOMERY
 
             *                            Director
- ----------------------------
     CHARLES C. REILLY
 
             *                            Director
- ----------------------------
       KEVIN A. RYAN
 
             *                            Director
- ----------------------------
      RICHARD R. WEST
 
*By:    /s/ Arthur Zeikel                                        January 21,
- ----------------------------                                         1998
         ARTHUR ZEIKEL
       (ATTORNEY-IN-FACT)
</TABLE>     
 
                                      C-10
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER
 -------
 <C>     <S>
  11     --Consent of Deloitte & Touche LLP, independent accountants for the
          Registrant
  17(a)  --Financial Data Schedule--High Income Portfolio--Class A shares
  17(b)  --Financial Data Schedule--Investment Grade Portfolio--Class A shares
  17(c)  --Financial Data Schedule--Intermediate Term Portfolio--Class A shares
  17(d)  --Financial Data Schedule--High Income Portfolio--Class B shares
  17(e)  --Financial Data Schedule--Investment Grade Portfolio--Class B shares
  17(f)  --Financial Data Schedule--Intermediate Term Portfolio--Class B shares
  17(g)  --Financial Data Schedule--High Income Portfolio--Class C shares
  17(h)  --Financial Data Schedule--Investment Grade Portfolio--Class C shares
  17(i)  --Financial Data Schedule--Intermediate Term Portfolio--Class C shares
  17(j)  --Financial Data Schedule--High Income Portfolio--Class D shares
  17(k)  --Financial Data Schedule--Investment Grade Portfolio--Class D shares
  17(l)  --Financial Data Schedule--Intermediate Term Portfolio--Class D shares
</TABLE>    
<PAGE>
 
APPENDIX FOR GRAPHIC AND IMAGE MATERIAL

        Pursuant to Rule 304 of Regulation S-T, the following table presents 
fair and accurate narrative descriptions of graphic and image material omitted 
from this EDGAR Submission file due to ASCII-incompatibility and cross-
references this material to the location of each occurrence in the text.

DESCRIPTION OF OMITTED                          LOCATION OF GRAPHIC
  GRAPHIC OR IMAGE                               OR IMAGE IN TEXT
- ----------------------                          -------------------
Compass plate, circular                     Back cover of Prospectus and
graph paper and Merrill Lynch                back cover of Statement of
logo including stylized market                  Additional Information
bull

<TABLE> <S> <C>

<PAGE>
 
       
<ARTICLE> 6
<SERIES>
  <NUMBER> 001
  <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. HIGH INCOME PORTFOLIO - CLASS A
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1996
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                       7312366251
<INVESTMENTS-AT-VALUE>                      7620935445
<RECEIVABLES>                                172452499
<ASSETS-OTHER>                                 1752635
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              7795140579
<PAYABLE-FOR-SECURITIES>                      79614046
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                     39777136
<TOTAL-LIABILITIES>                          119391182
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    7354946770
<SHARES-COMMON-STOCK>                        125960942
<SHARES-COMMON-PRIOR>                        119457213
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                       (3127933)
<ACCUMULATED-NET-GAINS>                       15361366
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     308569194
<NET-ASSETS>                                1044799502
<DIVIDEND-INCOME>                             21574487
<INTEREST-INCOME>                            619991404
<OTHER-INCOME>                                 9038853
<EXPENSES-NET>                              (75595503)
<NET-INVESTMENT-INCOME>                      575009241
<REALIZED-GAINS-CURRENT>                      20040352
<APPREC-INCREASE-CURRENT>                    292161549
<NET-CHANGE-FROM-OPS>                        887211142
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                   (91922975)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                       31134080
<NUMBER-OF-SHARES-REDEEMED>                 (29808906)
<SHARES-REINVESTED>                            5178555
<NET-CHANGE-IN-ASSETS>                      1847526191
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (5141262)
<OVERDISTRIB-NII-PRIOR>                      (2665658)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                         27345032
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               75595503
<AVERAGE-NET-ASSETS>                         995996638
<PER-SHARE-NAV-BEGIN>                             7.93
<PER-SHARE-NII>                                    .74
<PER-SHARE-GAIN-APPREC>                            .36
<PER-SHARE-DIVIDEND>                             (.74)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.29
<EXPENSE-RATIO>                                    .51
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
       
<ARTICLE> 6
<SERIES>
   <NUMBER> 002
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INVESTMENT GRADE PORTFOLIO - CLASS A
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1996
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                       1192497065
<INVESTMENTS-AT-VALUE>                      1209581093
<RECEIVABLES>                                 22235119
<ASSETS-OTHER>                                 6724519
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              1238540731
<PAYABLE-FOR-SECURITIES>                       6690921
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      6836384
<TOTAL-LIABILITIES>                           13527305
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    1246534586
<SHARES-COMMON-STOCK>                         45586778
<SHARES-COMMON-PRIOR>                         54539733
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (6840481)
<OVERDISTRIBUTION-GAINS>                    (31764707)
<ACCUM-APPREC-OR-DEPREC>                      17084028
<NET-ASSETS>                                 519708420
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                            101496218
<OTHER-INCOME>                                   81037
<EXPENSES-NET>                              (13646545)
<NET-INVESTMENT-INCOME>                       87930710
<REALIZED-GAINS-CURRENT>                      (160363)
<APPREC-INCREASE-CURRENT>                     28265493
<NET-CHANGE-FROM-OPS>                        116035840
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                   (40601509)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                       28203393
<NUMBER-OF-SHARES-REDEEMED>                 (38665524)
<SHARES-REINVESTED>                            1509176
<NET-CHANGE-IN-ASSETS>                     (236729459)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (6680118)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                  (31764707)
<GROSS-ADVISORY-FEES>                          4995553
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                               13646545
<AVERAGE-NET-ASSETS>                         603550364
<PER-SHARE-NAV-BEGIN>                            11.16
<PER-SHARE-NII>                                    .76
<PER-SHARE-GAIN-APPREC>                            .24
<PER-SHARE-DIVIDEND>                             (.76)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.40
<EXPENSE-RATIO>                                    .57
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
 
       
<ARTICLE> 6
<SERIES>
   <NUMBER> 003
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INTERMEDIATE TERM PORTFOLIO - CLASS A
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1996
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                        384731273
<INVESTMENTS-AT-VALUE>                       388378243
<RECEIVABLES>                                  9842065
<ASSETS-OTHER>                                 7848358
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               406068666
<PAYABLE-FOR-SECURITIES>                       9773900
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      3125689
<TOTAL-LIABILITIES>                           12899589
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     400913193
<SHARES-COMMON-STOCK>                         15582572
<SHARES-COMMON-PRIOR>                         19197959
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (5870447)
<OVERDISTRIBUTION-GAINS>                     (5520639)
<ACCUM-APPREC-OR-DEPREC>                       3646970
<NET-ASSETS>                                 179115016
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                             32416240
<OTHER-INCOME>                                   60980
<EXPENSES-NET>                               (4085345)
<NET-INVESTMENT-INCOME>                       28391875
<REALIZED-GAINS-CURRENT>                      (507524)
<APPREC-INCREASE-CURRENT>                      8329252
<NET-CHANGE-FROM-OPS>                         36213603
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                   (13458213)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        8879479
<NUMBER-OF-SHARES-REDEEMED>                 (13031273)
<SHARES-REINVESTED>                             536407
<NET-CHANGE-IN-ASSETS>                      (83430855)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (5362923)
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</TABLE>

<TABLE> <S> <C>

<PAGE>
 
       
<ARTICLE> 6
<SERIES>
   <NUMBER> 004
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. HIGH INCOME PORTFOLIO - CLASS B
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<PAGE>

       
<ARTICLE> 6
<SERIES>
   <NUMBER> 005
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INVESTMENT GRADE PORTFOLIO - CLASS B
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<PAGE>

       
<ARTICLE> 6
<SERIES>
   <NUMBER> 006
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INTERMEDIATE TERM PORTFOLIO - CLASS B
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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</TABLE>

<TABLE> <S> <C>

<PAGE>

       
<ARTICLE> 6
<SERIES>
   <NUMBER> 007
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. HIGH INCOME PORTFOLIO - CLASS C
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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</TABLE>

<TABLE> <S> <C>

<PAGE>

       
<ARTICLE> 6
<SERIES>
   <NUMBER> 008
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INVESTMENT GRADE PORTFOLIO - CLASS C 
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<PAGE>
 
       
<ARTICLE> 6
<SERIES>
   <NUMBER> 009
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INTERMEDIATE TERM PORTFOLIO - CLASS C
<S>                             <C>
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</TABLE>

<TABLE> <S> <C>

<PAGE>

       
<ARTICLE> 6
<SERIES>
   <NUMBER> 010
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. HIGH INCOME PORTFOLIO - CLASS D
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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</TABLE>

<TABLE> <S> <C>

<PAGE>

       
<ARTICLE> 6
<SERIES>
   <NUMBER> 011
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INVESTMENT GRADE PORTFOLIO - CLASS D
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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<INTEREST-EXPENSE>                                   0
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<PER-SHARE-NAV-BEGIN>                            11.17
<PER-SHARE-NII>                                    .73
<PER-SHARE-GAIN-APPREC>                            .24
<PER-SHARE-DIVIDEND>                             (.73)
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<EXPENSE-RATIO>                                    .82
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>

<TABLE> <S> <C>

<PAGE>
 
       
<ARTICLE> 6
<SERIES>
   <NUMBER> 012
   <NAME> MERRILL LYNCH CORPORATE BOND FUND, INC. INTERMEDIATE TERM PORTFOLIO - CLASS D
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1997
<PERIOD-START>                             OCT-01-1996
<PERIOD-END>                               SEP-30-1997
<INVESTMENTS-AT-COST>                        384731273
<INVESTMENTS-AT-VALUE>                       388378243
<RECEIVABLES>                                  9842065
<ASSETS-OTHER>                                 7848358
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               406068666
<PAYABLE-FOR-SECURITIES>                       9773900
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      3125689
<TOTAL-LIABILITIES>                           12899589
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     400913193
<SHARES-COMMON-STOCK>                          5596422
<SHARES-COMMON-PRIOR>                          2949249
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (5870447)
<OVERDISTRIBUTION-GAINS>                     (5520639)
<ACCUM-APPREC-OR-DEPREC>                       3646970
<NET-ASSETS>                                  64335399
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                             32416240
<OTHER-INCOME>                                   60980
<EXPENSES-NET>                               (4085345)
<NET-INVESTMENT-INCOME>                       28391875
<REALIZED-GAINS-CURRENT>                      (507524)
<APPREC-INCREASE-CURRENT>                      8329252
<NET-CHANGE-FROM-OPS>                         36213603
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (3277074)
<DISTRIBUTIONS-OF-GAINS>                             0
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<NUMBER-OF-SHARES-REDEEMED>                  (1651097)
<SHARES-REINVESTED>                             167855
<NET-CHANGE-IN-ASSETS>                      (83430855)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (5362923)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                   (5520639)
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                4085345
<AVERAGE-NET-ASSETS>                          51884433
<PER-SHARE-NAV-BEGIN>                            11.28
<PER-SHARE-NII>                                    .72
<PER-SHARE-GAIN-APPREC>                            .22
<PER-SHARE-DIVIDEND>                             (.72)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.50
<EXPENSE-RATIO>                                    .77
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<PAGE>
 
                                                                   EXHIBIT 99.11


INDEPENDENT AUDITORS' CONSENT

Merrill Lynch Corporate Bond Fund, Inc.:

We consent to the use in Post-Effective Amendment No. 24 to Registration
Statement No. 2-62329 of our reports dated November 18, 1997 appearing in the
Statement of Additional Information, which are a part of such Registration
Statement, and to the reference to us under the caption "Financial Highlights"
appearing in the Prospectus, which also is a part of such Registration
Statement.


/s/ Deloitte & Touche LLP
- -------------------------
Deloitte & Touche LLP
Princeton, New Jersey
January 16, 1998


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