MUNIHOLDINGS INSURED FUND II INC
N-2/A, 1999-02-23
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<PAGE>
 
    
 As filed with the Securities and Exchange Commission on February 23, 1999     
                                               Securities Act File No. 333-70183
                                       Investment Company Act File No. 811-09191
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
 
                                --------------
 
                                    FORM N-2
[X]         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
[X]                       
                       PRE-EFFECTIVE AMENDMENT NO. 2     
[_]                       POST-EFFECTIVE AMENDMENT NO.
                                     AND/OR
[X]     REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
[X]                              
                              AMENDMENT NO. 3     
                        (Check appropriate box or boxes)
 
                                --------------
 
                       MuniHoldings Insured Fund II, Inc.
               (Exact Name of Registrant as Specified in Charter)
 
                                --------------
 
                             800 Scudders Mill Road
                          Plainsboro, New Jersey 08536
                    (Address of Principal Executive Offices)
 
                                --------------
 
                                 (609) 282-2800
              (Registrant's Telephone Number, Including Area Code)
 
                                --------------
 
                                 Arthur Zeikel
                       MuniHoldings Insured Fund II, Inc.
              800 Scudders Mill Road, Plainsboro, New Jersey 08536
        Mailing Address: P.O. Box 9011, Princeton, New Jersey 08543-9011
                    (Name and Address of Agent for Service)
 
                                --------------
 
                                   Copies to:
      Michael J. Hennewinkel, Esq.                Frank P. Bruno, Esq.
      Fund Asset Management, L.P.                   Brown & Wood LLP
             P.O. Box 9011                       One World Trade Center
    Princeton, New Jersey 08543-9011         New York, New York 10048-0557
 
                                --------------
 
 Approximate date of proposed public offering: As soon as practicable after the
                 effective date of this Registration Statement.
 
                                --------------
 
  If any of the securities being registered on this form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, as amended (the "Securities Act"), other than securities offered only in
connection with dividend or interest reinvestment plans, check the following
box. [_]
 
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]
 
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration number of the earlier effective registration statement for the
same offering. [_]
 
  If delivery of the prospectus is expected to be made pursuant to Rule 434
under the Securities Act, please check the following box. [_]
 
                                --------------
 
        CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933
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<TABLE>   
<CAPTION>
                                              Proposed       Proposed
        Title of              Amount          Maximum        Maximum      Amount of
    Securities Being           Being       Offering Price   Aggregate    Registration
       Registered          Registered(1)      Per Unit    Offering Price    Fee(2)
- -------------------------------------------------------------------------------------
<S>                      <C>               <C>            <C>            <C>
Common Stock ($.10 par      11,040,000
 value)...............        shares           $15.00      $165,600,000    $46,037
</TABLE>    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
          
(1) Includes 1,440,000 shares subject to the Underwriter's over-allotment
    option.     
   
(2) Transmitted to the designated lockbox at Mellon Bank in Pittsburgh, PA.
    $32,130 was previously paid. $13,907 was transmitted in connection with
    this filing.     
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
       
       
PROSPECTUS
                                
                             9,600,000 Shares     
 
                       MuniHoldings Insured Fund II, Inc.
 
                                  Common Stock
 
                               ----------------
 
  MuniHoldings Insured Fund II, Inc. (the "Fund") is a newly organized, non-
diversified, closed-end management investment company that seeks to provide
shareholders with current income exempt from Federal income taxes. The Fund
seeks to achieve its objective by investing primarily in a portfolio of long-
term, investment grade municipal obligations the interest on which, in the
opinion of bond counsel to the issuer, is exempt from Federal income taxes. The
Fund intends to invest in municipal obligations that are rated investment grade
or, if unrated, are considered by the Fund's investment adviser to be of
comparable quality. Under normal circumstances, at least 80% of the Fund's
assets will be invested in municipal obligations with remaining maturities of
one year or more that are covered by insurance guaranteeing the timely payment
of principal at maturity and interest.
   
  Because the Fund is newly organized, its shares have no history of public
trading. Shares of closed-end investment companies frequently trade at a
discount from their net asset value. This risk may be greater for investors
expecting to sell their shares in a relatively short period after completion of
the public offering. The Fund's common stock has been approved for listing on
the New York Stock Exchange under the symbol "MUE." Trading of the Fund's
common stock on the exchange is expected to begin within two weeks of the date
of this prospectus. Before it begins trading, the underwriter does not intend
to make a market in the Fund's shares. Thus, investors may not be able to buy
and sell shares of the Fund during that time.     
 
  Within approximately three months after completion of this offering of common
stock, the Fund intends to offer shares of preferred stock representing
approximately 40% of the Fund's capital immediately after the issuance of such
preferred stock. There can be no assurance, however, that preferred stock
representing such percentage of the Fund's capital will actually be issued. The
use of preferred stock to leverage the common stock can create special risks.
 
                               ----------------
 
  This prospectus contains information you should know before investing,
including information about risks. Please read it before you invest and keep it
for future reference.
 
                               ----------------
 
  Investing in the common stock involves certain risks, which are described in
the "Risk Factors and Special Considerations" section beginning on page 7 of
this prospectus.
 
<TABLE>   
<CAPTION>
                                                          Per Share    Total
                                                          ---------    -----
       <S>                                                <C>       <C>
       Public Offering Price.............................  $15.00   $144,000,000
       Sales Load........................................  None         None
       Proceeds, before expenses, to Fund................  $15.00   $144,000,000
</TABLE>    
   
  The Fund's investment adviser or an affiliate will pay the underwriter a
commission in the amount of 2.00% of the public offering price per share in
connection with the sale of the common stock.     
   
  The underwriter may also purchase up to an additional 1,440,000 shares at the
public offering price within 45 days from the date of this prospectus to cover
over-allotments.     
 
  Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.
   
  We expect that the shares of common stock will be ready for delivery in New
York, New York on or about February 26, 1999.     
 
                               ----------------
                              Merrill Lynch & Co.
 
                               ----------------
                
             The date of this prospectus is February 23, 1999.     
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>   
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
Prospectus Summary.........................................................   3
Risk Factors and Special Considerations....................................   7
Fee Table..................................................................   9
The Fund...................................................................  10
Use of Proceeds............................................................  10
Investment Objective and Policies..........................................  10
Risks and Special Considerations of Leverage...............................  20
Investment Restrictions....................................................  23
Directors and Officers.....................................................  25
Investment Advisory and Management Arrangements............................  27
Portfolio Transactions.....................................................  29
Dividends and Distributions................................................  30
Taxes......................................................................  30
Automatic Dividend Reinvestment Plan.......................................  34
Mutual Fund Investment Option..............................................  36
Net Asset Value............................................................  36
Description of Capital Stock...............................................  37
Custodian..................................................................  40
Underwriting...............................................................  40
Transfer Agent, Dividend Disbursing Agent and Registrar....................  42
Legal Opinions.............................................................  42
Experts....................................................................  42
Additional Information.....................................................  42
Report of Independent Auditors.............................................  44
Statement of Assets, Liabilities and Capital...............................  45
Appendix I--Ratings of Municipal Bonds.....................................  46
Appendix II--Portfolio insurance...........................................  53
Appendix III--Taxable Equivalent Yields for 1999...........................  55
</TABLE>    
 
                               ----------------
 
  Information about the Fund can be reviewed and copied at the SEC's Public
Reference Room in Washington, D.C. Call 1-800-SEC-0330 for information on the
operation of the public reference room. This information is also available on
the SEC's Internet site at http://www.sec.gov and copies may be obtained upon
payment of a duplicating fee by writing the Public Reference Section of the
SEC, Washington, D.C. 20549-6009.
 
                               ----------------
 
  You should rely only on the information contained in this prospectus. We have
not, and the underwriter has not, authorized any other person to provide you
with different information. If anyone provides you with different or
inconsistent information, you should not rely on it. We are not, and the
underwriter is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted. You should assume that
the information appearing in this prospectus is accurate as of the date on the
front cover of this prospectus only. Our business, financial condition, results
of operations and prospects may have changed since that date.
 
                                       2
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  This summary is qualified in its entirety by reference to the detailed
information included in this prospectus.
 
The Fund    MuniHoldings Insured Fund II, Inc. is a newly organized, non-
            diversified, closed-end management investment company.
 
The            
Offering    The Fund is offering 9,600,000 shares of common stock at an initial
            offering price of $15.00 per share. The common stock is being
            offered by Merrill Lynch, Pierce, Fenner & Smith Incorporated, as
            underwriter. The underwriter may also purchase up to an additional
            1,440,000 shares of common stock within 45 days of the date of this
            prospectus to cover over-allotments.     
 
Investment  The investment objective of the Fund is to provide shareholders
Objective   with current income exempt from Federal income taxes. The Fund
and         seeks to achieve its objective by investing primarily in a
Policies    portfolio of long-term, investment grade municipal obligations the
            interest on which, in the opinion of bond counsel to the issuer, is
            exempt from Federal income taxes.
 
            Investment Grade Municipal Bonds. The Fund intends to invest in
            municipal bonds that are rated investment grade by one or more
            nationally recognized statistical rating agencies or, if unrated,
            are considered by the Fund's investment adviser to be of comparable
            quality.
 
            The Fund will normally invest at least 80% of its assets in insured
            municipal obligations with remaining maturities of one year or
            more. Insured municipal obligations are covered by insurance that
            guarantees timely interest payments and the repayment of principal
            on maturity.
 
            In general, the Fund does not intend its investments to earn a
            large amount of income that is not exempt from Federal income
            taxes.
 
            Indexed and Inverse Floating Rate Securities. The Fund may invest
            in securities whose potential returns are directly related to
            changes in an underlying index or interest rate, known as indexed
            securities. The return on indexed securities will rise when the
            underlying index or interest rate rises and fall when the index or
            interest rate falls. The Fund may also invest in securities whose
            return is inversely related to changes in an interest rate (inverse
            floaters). In general, income on inverse floaters will decrease
            when short term interest rates increase and increase when short
            term interest rates decrease. Investments in inverse floaters may
            subject the Fund to the risks of reduced or eliminated interest
            payments and losses of principal. In addition, certain indexed
            securities and inverse floaters may increase or decrease in value
            at a greater rate than the underlying interest rate, which
            effectively leverages the Fund's investment. As a result, the
            market value of such securities will generally be more volatile
            than that of fixed rate, tax exempt securities. Both indexed
            securities and inverse floaters are derivative securities and can
            be considered speculative.
 
                                       3
<PAGE>
 
 
            Options and Futures Transactions. The Fund may seek to hedge its
            portfolio against changes in interest rates using options and
            financial futures contracts. The Fund's hedging transactions are
            designed to reduce volatility, but come at some cost. For example,
            the Fund may try to limit its risk of loss from a decline in price
            of a portfolio security by purchasing a put option. However, the
            Fund must pay for the option, and the price of the security may not
            in fact drop. In large part, the success of the Fund's hedging
            activities depends on its ability to forecast movements in
            securities prices and interest rates. The Fund does not, however,
            intend to enter into options and futures transactions for
            speculative purposes. The Fund is not required to hedge its
            portfolio and may not do so.
 
Leverage    Issuance of Preferred Stock. The Fund intends to offer shares of
            preferred stock within three months after completion of this
            offering. The preferred stock will represent approximately 40% of
            the Fund's capital, including the capital raised by issuing the
            preferred stock. There can be no assurance, however, that preferred
            stock will actually be issued. Issuing preferred stock will result
            in the leveraging of the common stock. Although the Board of
            Directors has not yet determined the terms of the preferred stock
            offering, the Fund expects that the preferred stock will pay
            dividends that will be adjusted over either relatively short-term
            periods (generally seven to 28 days) or medium-term periods (up to
            five years). The preferred stock dividend rate will be based upon
            prevailing interest rates for debt obligations of comparable
            maturity. The money raised by the preferred stock offering will be
            invested in longer-term obligations in accordance with the Fund's
            investment objective. The expenses of the preferred stock, which
            will be borne by the Fund, will reduce the net asset value of the
            common stock. In addition, at times, when the Fund is required to
            allocate taxable income to preferred stockholders, the terms of the
            preferred stock may require the Fund to make an additional
            distribution to them. The amount of this additional distribution
            approximately equals the tax liability resulting from the
            allocation (an "Additional Distribution"). During periods when the
            Fund has preferred stock outstanding, the Fund will pay fees to the
            investment adviser for its services that are higher than if the
            Fund did not issue preferred stock because the fees will be
            calculated on the basis of the Fund's average weekly net assets,
            including proceeds from the sale of preferred stock.
 
            Potential Benefits of Leverage. Under normal market conditions,
            longer term obligations produce higher yields than short and medium
            term obligations. The Fund's investment adviser believes that the
            interest income the Fund receives from its long term investments
            will exceed the amount of interest the Fund must pay to the
            preferred stockholders. Thus, the Fund's use of preferred stock
            should provide common stockholders with a higher yield than they
            would receive if the Fund were not leveraged.
 
            Risks. The use of leverage creates certain risks for common
            stockholders, including higher volatility of both the net asset
            value and the market value of the common stock. Since any decline
            in the value of the Fund's investments will affect only the common
            stockholders, in a declining market the use of leverage will cause
            the Fund's net asset value to decrease more than it would if the
            Fund were not leveraged. This decrease in net asset value will
            likely also
 
                                       4
<PAGE>
 
            cause a decline in the market price for shares of common stock. In
            addition, fluctuations in the dividend rates paid on, and the
            amount of taxable income allocable to, the preferred stock will
            affect the yield to common stockholders. There can be no assurance
            that the Fund will earn a higher net return on its investments than
            the then current dividend rate (and any Additional Distribution) it
            pays on the preferred stock. Under certain conditions, the benefits
            of leverage to common stockholders will be reduced, and the Fund's
            leveraged capital structure could result in a lower rate of return
            to common stockholders than if the Fund were not leveraged.
 
            Distributions. When the Fund issues preferred stock, common
            stockholders will receive all of the Fund's net income that remains
            after it pays dividends (and any Additional Distribution) on the
            preferred stock and generally will be entitled to a pro rata share
            of net realized capital gains. If the Fund is liquidated, preferred
            stockholders will be entitled to receive liquidating distributions
            before any distribution is made to common stockholders. These
            liquidating distributions are expected to equal the original
            purchase price per share of the preferred stock plus any
            accumulated and unpaid dividends and Additional Distributions.
 
            Redemption of Preferred Stock. The Fund may redeem the preferred
            stock for any reason. For example, the Fund may redeem all or part
            of the preferred stock if it believes that the Fund's leveraged
            capital structure will cause common stockholders to obtain a lower
            return than they would if the common stock were unleveraged for any
            significant amount of time.
 
            Voting Rights. Preferred stockholders, voting as a separate class,
            will be entitled to elect two of the Fund's Directors. Common and
            preferred stockholders, voting together as a single class, will be
            entitled to elect the remaining Directors. If the Fund fails to pay
            dividends to the preferred stockholders for two full years, the
            holders of all outstanding shares of preferred stock, voting as a
            separate class, would then be entitled to elect a majority of the
            Fund's Directors. The preferred stockholders also will vote
            separately on certain other matters as required under the Fund's
            Articles of Incorporation, the Investment Company Act of 1940, as
            amended, and Maryland law. Otherwise, common and preferred
            stockholders will have equal voting rights (one vote per share) and
            will vote together as a single class.
 
            Ratings. Before it offers the preferred stock, the Fund intends to
            apply to one or more nationally recognized statistical ratings
            organizations for ratings on the preferred stock. The Fund believes
            that a rating for the preferred stock will make it easier to market
            the stock, which should reduce the dividend rate.
 
Listing        
            Currently, there is no public market for the Fund's common stock.
            However, the Fund's common stock has been approved for listing on
            the New York Stock Exchange. Trading of the Fund's common stock is
            expected to begin within two weeks of the date of this prospectus.
            Before it begins trading, the underwriter does not intend to make a
            market in the Fund's shares of common stock. Thus, investors may
            not be able to buy and sell shares of the Fund during that period.
                
                                       5
<PAGE>
 
 
Investment    Fund Asset Management, L.P. is the Fund's investment adviser and
Adviser       provides investment advisory and management services to the Fund.
              For its services, the Fund pays the investment adviser a fee at
              the annual rate of 0.55% of the Fund's average weekly net assets,
              including assets acquired from the sale of preferred stock.
 



               
Dividends     The Fund intends to distribute dividends equal to substantially
and           all of its net investment income to common stockholders each
Distributions month. Once the Fund issues preferred stock, the monthly
              distributions to common stockholders will consist of substantially
              all net investment income that remains after the Fund pays
              dividends (and any Additional Distribution) on the preferred
              stock. The Fund expects to begin paying dividends to common
              stockholders within approximately 90 days from the date of this
              prospectus. The Fund will distribute net capital gains, if any, at
              least annually to common stockholders and, after it issues the
              preferred stock, on a pro rata basis to common and preferred
              stockholders. When the Fund allocates capital gains or other
              taxable income to preferred stockholders, under certain
              circumstances, the terms of the preferred stock may require the
              Fund to make an Additional Distribution. The Fund may not declare
              any cash dividend or other distribution on its common stock unless
              the preferred stock has asset coverage of at least 200%. If the
              Fund issues preferred stock representing 40% of its total capital,
              the preferred stock's asset coverage will be approximately 250%.
              If the Fund's ability to make distributions on its common stock is
              limited, the Fund may not be able to qualify for taxation as a
              regulated investment company. This would have adverse tax
              consequences for stockholders.     
 
Automatic     Dividend and capital gains distributions generally are used to
Dividend      purchase additional shares of the Fund's common stock. However, an
Reinvestment  investor can choose to receive distributions in cash. Since not 
Plan          all investors can participate in the automatic dividend 
              reinvestment plan, you should call your broker or nominee to
              confirm that you are eligible to participate in the plan.
 
Mutual        Investors who purchase shares in this offering through the
Fund          underwriter and later sell their shares have the option, subject
Investment    to certain conditions, to purchase Class D shares of certain 
Option        Merrill Lynch funds with the proceeds from the sale.
 
                                       6
<PAGE>
 
                    RISK FACTORS AND SPECIAL CONSIDERATIONS
 
  Liquidity and Market Price of Shares. The Fund is newly organized and has no
operating history or history of public trading. Before the Fund's common stock
is listed on the New York Stock Exchange, an investment in the Fund may be
illiquid.
 
  Shares of closed-end funds that trade in a secondary market frequently trade
at a market price that is below their net asset value. This is commonly
referred to as "trading at a discount." Investors who sell their shares within
a relatively short period after completion of the public offering are more
likely to be exposed to this risk. The Fund is designed primarily for long-term
investors and should not be considered a vehicle for trading purposes.
 
  Non-diversification. The Fund is registered as a "non-diversified" investment
company. This means that the Fund may invest a greater percentage of its assets
in a single issuer than a diversified investment company. Even as a non-
diversified fund, the Fund must still meet the diversification requirements of
applicable Federal income tax laws. Since the Fund may invest a relatively high
percentage of its assets in a limited number of issuers, the Fund may be more
exposed to any single economic, political or regulatory occurrence than a more
widely-diversified fund.
 
  Interest Rate and Credit Risk. The Fund invests in municipal bonds that are
subject to interest rate and credit risk. Interest rate risk is the risk that
prices of municipal bonds generally increase when interest rates decline and
decrease when interest rates increase. Prices of longer term securities
generally change more in response to interest rate changes than prices of
shorter term securities. Credit risk is the risk that the issuer will be unable
to pay the interest or principal when due. The degree of credit risk depends on
both the financial condition of the issuer and the terms of the obligation.
 
  Rating Categories. The Fund intends to invest in municipal bonds that are
rated investment grade by Standard & Poor's, Moody's Investors Service, Inc.
and Fitch IBCA, Inc. It may also invest in unrated municipal bonds that the
Fund's investment adviser believes are of comparable quality. Obligations rated
in the lowest investment grade category may have certain speculative
characteristics.
 
  Private Activity Bonds. The Fund may invest in certain tax-exempt securities
classified as "private activity bonds." These bonds may subject certain
investors in the Fund to the alternative minimum tax.
 
  Portfolio Insurance and Rating Agencies. The Fund will be subject to certain
investment restrictions imposed by guidelines of the insurance companies that
issue portfolio insurance and to guidelines of one or more nationally
recognized statistical ratings organizations that may issue ratings for the
preferred stock. These guidelines may impose asset coverage or portfolio
composition requirements that are more stringent than those imposed by the
Investment Company Act of 1940, as amended. The Fund does not expect these
requirements or guidelines to prevent the investment adviser from managing the
Fund's portfolio in accordance with the Fund's investment objective and
policies.
 
  Leverage. The Fund plans to offer shares of preferred stock. The preferred
stock will represent approximately 40% of the Fund's capital, including capital
raised by issuing the preferred stock. Leverage
 
                                       7
<PAGE>
 
creates certain risks for common stockholders, including higher volatility of
both the net asset value and the market value of the common stock. Leverage
also creates the risk that the investment return on shares of the Fund's common
stock will be reduced to the extent the dividends paid on preferred stock and
other expenses of the preferred stock exceed the income earned by the Fund on
its investments. If the Fund is liquidated, preferred stockholders will be
entitled to receive liquidating distributions before any distribution is made
to common stockholders.
 
  Inverse Floating Obligations. The Fund's investments in "inverse floating
obligations" or "residual interest bonds" provide investment leverage because
their market value increases or decreases in response to market changes at a
greater rate than fixed rate, long term tax exempt securities. The market
values of such securities are more volatile than the market values of fixed
rate, tax exempt securities.
 
  Options and Futures Transactions. The Fund may engage in certain options and
futures transactions to reduce its exposure to interest rate movements. If the
Fund incorrectly forecasts market values, interest rates or other factors, the
Fund's performance could suffer. The Fund also may suffer a loss if the other
party to the transaction fails to meet its obligations. The Fund is not
required to use hedging and may not do so.
 
  Antitakeover Provisions. The Fund's Articles of Incorporation include
provisions that could limit the ability of other entities or persons to acquire
control of the Fund or to change the composition of its Board of Directors.
Such provisions could limit the ability of shareholders to sell their shares at
a premium over prevailing market prices by discouraging a third party from
seeking to obtain control of the Fund.
 
                                       8
<PAGE>
 
                                   FEE TABLE
<TABLE>   
<S>                                                                      <C>
Shareholder Transaction Expenses:
  Maximum Sales Load (as a percentage of offering price)................ None
  Dividend Reinvestment Plan Fees....................................... None
Annual Expenses (as a percentage of net assets attributable to Common
 Stock):
  Investment Advisory Fees(a)(b)........................................ 0.92%
  Interest Payments on Borrowed Funds................................... None
  Other Expenses(a)(b).................................................. 0.43%
                                                                         ----
    Total Annual Expenses(a)(b)......................................... 1.35%
                                                                         ====
</TABLE>    
 
<TABLE>   
<CAPTION>
EXAMPLE                                     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,
   assuming (1) total annual expenses of
   1.35% (assuming leverage of 40% of the
   Fund's total assets) and (2) a 5% annual
   return throughout the periods:..........  $14     $43     $74     $162
</TABLE>    
- --------
   
(a) Assumes leverage by issuing preferred stock in an amount of approximately
    40% of the Fund's capital at a dividend rate of 3.375%. The Fund intends to
    use leverage only if the Investment Adviser believes that it would result
    in higher income to shareholders over time. See "Risks and Special
    Considerations of Leverage." If the Fund does not utilize leverage, it is
    estimated that, as a percentage of net assets attributable to common stock,
    the Management Fees would be 0.55%, Other Expenses would be 0.21% and Total
    Annual Expenses would be 0.76%.     
(b) See "Investment Advisory and Management Arrangements"--page 27.
 
  The 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
expenses set forth under "Other Expenses" are based on estimated amounts
through the end of the Fund's first fiscal year. The Example set forth above
assumes reinvestment of all dividends and distributions and uses a 5% annual
rate of return as mandated by the Securities and Exchange Commission
regulations. The Example should not be considered a representation of future
expenses or annual rates of return, and actual expenses or annual rates of
return may be more or less than those assumed for purposes of the Example.
 
                                       9
<PAGE>
 
                                    THE FUND
 
  MuniHoldings Insured Fund II, Inc. (the "Fund") is a newly organized, non-
diversified, closed-end management investment company. The Fund was
incorporated under the laws of the State of Maryland on December 28, 1998, and
has registered under the 1940 Act. The Fund's principal office is located at
800 Scudders Mill Road, Plainsboro, New Jersey 08536, and its telephone number
is (609) 282-2800.
 
  The Fund has been organized as a closed-end investment company. Closed-end
investment companies differ from open-end investment companies (commonly
referred to as "mutual funds") in that closed-end investment companies do not
generally make a continuous offering of their shares or redeem their securities
at the option of the shareholder, whereas open-end companies issue securities
redeemable at net asset value at any time at the option of the shareholder and
typically engage in a continuous offering of their shares. Accordingly, open-
end investment companies are subject to continuous asset in-flows and out-flows
that can complicate portfolio management. Shares of closed-end investment
companies, however, frequently trade at a discount from their net asset value.
This risk may be greater for investors expecting to sell their shares in a
relatively short period after completion of the public offering.
 
                                USE OF PROCEEDS
   
  The net proceeds of this offering will be approximately $143,725,000 (or
approximately $165,325,000 assuming the Underwriter exercises the over-
allotment option in full) after payment of offering expenses estimated to be
approximately $275,000.     
 
  The net proceeds of the offering will be invested in accordance with the
Fund's investment objective and policies within approximately three months
after completion of the offering of common stock, depending on market
conditions and the availability of appropriate securities. Pending such
investment, it is anticipated that the proceeds will be invested in short-term,
tax-exempt securities. See "Investment Objective and Policies."
 
                       INVESTMENT OBJECTIVE AND POLICIES
   
  The Fund's investment objective is to provide shareholders with current
income exempt from Federal income taxes. The Fund will seek to achieve its
objective by investing primarily in a portfolio of long-term, investment grade
municipal obligations issued by or on behalf of states, territories and
possessions of the United States and their political subdivisions, agencies or
instrumentalities, and other qualifying issuers, each of which pays interest
that, in the opinion of bond counsel to the issuer, is exempt from Federal
income taxes ("Municipal Bonds"). The Fund will maintain at least 80% of its
assets in Municipal Bonds, except during interim periods pending investment of
the net proceeds of public offerings of the Fund's securities and during
temporary defensive periods. Under normal circumstances, at least 80% of the
Fund's assets will be invested in municipal obligations with remaining
maturities of one year or more that are covered by insurance guaranteeing the
timely payment of principal at maturity and interest. The Fund's investment
objective is a fundamental policy that may not be changed without a vote of a
majority of the Fund's outstanding voting securities, as defined below under
"Investment Restrictions." There can be no assurance that the investment
objective of the Fund will be realized. At times the Fund may seek to hedge its
portfolio through the use of options and futures transactions to reduce
volatility in the net asset value of its shares of common stock.     
 
                                       10
<PAGE>
 
  The Fund ordinarily does not intend to realize significant investment income
that is subject to Federal income taxes. The Fund may invest all or a portion
of its assets in certain tax-exempt securities classified as "private activity
bonds" (in general, bonds that benefit non-governmental entities) that may
subject certain investors in the Fund to an alternative minimum tax.
 
  The Fund also may invest in securities not issued by or on behalf of a state
or territory or by an agency or instrumentality thereof, if the Fund
nevertheless believes such securities pay interest or distributions that are
exempt from Federal income taxation ("Non-Municipal Tax-Exempt Securities").
Non-Municipal Tax-Exempt Securities may include securities issued by other
investment companies that invest in Municipal Bonds, to the extent such
investments are permitted by the Investment Company Act of 1940, as amended
(the "1940 Act"). Other Non-Municipal Tax-Exempt Securities could include trust
certificates or other instruments evidencing interests in one or more long-term
Municipal Bonds. Certain Non-Municipal Tax-Exempt Securities may be
characterized as derivative instruments. Non-Municipal Tax-Exempt Securities
are considered "Municipal Bonds" for purposes of the Fund's investment
objective and policies.
 
  Investment in shares of the Fund's common stock offers several potential
benefits. The Fund offers investors the opportunity to receive income exempt
from Federal income taxes by investing in a professionally managed portfolio
comprised primarily of investment grade insured Municipal Bonds. Investment in
the Fund also relieves the investor of the burdensome administrative details
involved in managing a portfolio of Municipal Bonds. Additionally, the Fund's
investment adviser, Fund Asset Management, L.P. (the "Investment Adviser"),
will seek to enhance the yield on the common stock by leveraging the Fund's
capital structure through the issuance of preferred stock. The benefits are at
least partially offset by the expenses involved in operating an investment
company. Such expenses primarily consist of the advisory fee and operational
costs. Additionally, the use of leverage involves certain expenses and special
risk considerations. See "Risks and Special Considerations of Leverage."
 
  The investment grade Municipal Bonds in which the Fund will primarily invest
are those Municipal Bonds rated at the date of purchase in the four highest
rating categories of Standard & Poor's ("S&P"), Moody's Investors Services,
Inc. ("Moody's") or Fitch IBCA, Inc. ("Fitch"), or, if unrated, considered to
be of comparable quality by the Investment Adviser. In the case of long-term
debt, the investment grade rating categories are AAA through BBB for S&P, Aaa
through Baa for Moody's and AAA through BBB for Fitch. In the case of short-
term notes, the investment grade rating categories are SP-1+ through SP-3 for
S&P, MIG-1 through MIG-3 for Moody's and F-1+ through F-3 for Fitch. In the
case of tax-exempt commercial paper, the investment grade rating categories are
A-1+ through A-3 for S&P, Prime-1 through Prime-3 for Moody's and F-1+ through
F-3 for Fitch. Obligations ranked in the lowest investment grade rating
category (BBB, SP-3 and A-3 for S&P; Baa, MIG-3 and Prime-3 for Moody's; and
BBB and F-3 for Fitch), while considered "investment grade," may have certain
speculative characteristics. There may be sub-categories or gradations
indicating relative standing within the rating categories set forth above. See
Appendix I to this Prospectus for a description of S&P's, Moody's and Fitch's
ratings of Municipal Bonds. In assessing the quality of Municipal Bonds with
respect to the foregoing requirements, the Investment Adviser will take into
account the portfolio insurance as well as the nature of any letters of credit
or similar credit enhancements to which particular Municipal Bonds are entitled
and the creditworthiness of the insurance company or the financial institution
that provided such insurance or credit enhancements. Consequently, if Municipal
Bonds are covered by insurance policies issued by insurers whose claims-paying
ability is rated AAA by S&P or Fitch or Aaa by Moody's, the Investment Adviser
may consider such municipal obligations to be equivalent to AAA- or Aaa- rated
 
                                       11
<PAGE>
 
securities, as the case may be, even though such Municipal Bonds would
generally be assigned a lower rating if the rating were based primarily upon
the credit characteristics of the issuers without regard to the insurance
feature. The insured Municipal Bonds must also comply with the standards
applied by the insurance carriers in determining eligibility for portfolio
insurance.
 
  The Fund's investments may also include variable rate demand obligations
("VRDOs") and VRDOs in the form of participation interests ("Participating
VRDOs") in variable rate tax-exempt obligations held by a financial
institution, typically a commercial bank. The VRDOs in which the Fund will
invest are tax-exempt obligations, in the opinion of counsel to the issuer,
that contain a floating or variable interest rate adjustment formula and an
unconditional right of demand on the part of the holder thereof to receive
payment of the unpaid principal balance plus accrued interest on a short notice
period not to exceed seven days. Participating VRDOs provide the Fund with a
specified undivided interest (up to 100%) in the underlying obligation and the
right to demand payment of the unpaid principal balance plus accrued interest
on the Participating VRDOs from the financial institution on a specified number
of days' notice, not to exceed seven days. There is, however, the possibility
that because of default or insolvency, the demand feature of VRDOs or
Participating VRDOs may not be honored. The Fund has been advised by its
counsel that the Fund should be entitled to treat the income received on
Participating VRDOs as interest from tax-exempt obligations.
 
  The average maturity of the Fund's portfolio securities will vary based upon
the Investment Adviser's assessment of economic and market conditions. The net
asset value of the shares of common stock of a closed-end investment company,
such as the Fund, which invests primarily in fixed-income securities, changes
as the general levels of interest rates fluctuate. When interest rates decline,
the value of a fixed-income portfolio can be expected to rise. Conversely, when
interest rates rise, the value of a fixed-income portfolio can be expected to
decline. Prices of longer-term securities generally fluctuate more in response
to interest rate changes than do short-term or medium-term securities. These
changes in net asset value are likely to be greater in the case of a fund
having a leveraged capital structure, as proposed for the Fund. See "Risks and
Special Considerations of Leverage."
 
  The Fund intends to invest primarily in long-term Municipal Bonds with a
maturity of more than ten years. Also, the Fund may invest in intermediate-term
Municipal Bonds with a maturity of between three years and ten years. The Fund
may invest in short-term, tax-exempt securities, short-term U.S. Government
securities, repurchase agreements or cash. Such short-term securities or cash
will not exceed 20% of its total assets except during interim periods pending
investment of the net proceeds of public offerings of the Fund's securities or
in anticipation of the repurchase or redemption of the Fund's securities and
temporary periods when, in the opinion of the Investment Adviser, prevailing
market or economic conditions warrant. The Fund does not ordinarily intend to
realize significant interest income that is subject to Federal income taxes.
 
  The Fund is classified as non-diversified within the meaning of the 1940 Act,
which means that the Fund is not limited by the 1940 Act in the proportion of
its assets that it may invest in securities of a single issuer. However, the
Fund's investments will be limited so as to qualify the Fund for special tax
treatment afforded regulated investment companies under the Federal tax laws.
See "Taxes." To qualify, among other requirements, the Fund will limit its
investments so that, at the close of each quarter of the taxable year, (i) not
more than 25% of the market value of the Fund's total assets will be invested
in the securities (other than U.S. Government securities) of a single issuer,
and (ii) with respect to 50% of the market value of its total assets, not more
than 5% of the market value of its total assets will be invested in the
securities (other than U.S. Government securities) of a single issuer. A fund
that elects to be classified as "diversified" under the 1940
 
                                       12
<PAGE>
 
   
Act must satisfy the foregoing 5% requirement with respect to 75% of its total
assets. To the extent that the Fund assumes large positions in the securities
of a small number of issuers, the Fund's net asset value may fluctuate to a
greater extent than that of a diversified company as a result of changes in the
financial condition or in the market's assessment of the issuers.     
 
Portfolio Insurance
 
  Under normal circumstances, at least 80% of the Fund's assets will be
invested in Municipal Bonds either (i) insured under an insurance policy
purchased by the Fund or (ii) insured under an insurance policy obtained by the
issuer thereof or any other party. The Fund will seek to limit its investments
to municipal bonds insured under insurance policies issued by insurance
carriers that have total admitted assets (unaudited) of at least $75,000,000
and capital and surplus (unaudited) of at least $50,000,000 and insurance
claims-paying ability ratings of AAA from S&P or Fitch or Aaa from Moody's.
There can be no assurance that insurance from insurance carriers meeting these
criteria will be at all times available. See Appendix II to this Prospectus for
a brief description of S&P's, Fitch's and Moody's insurance claims-paying
ability ratings. Currently, it is anticipated that a majority of the insured
Municipal Bonds in the Fund's portfolio will be insured by the following
insurance companies that satisfy the foregoing criteria: AMBAC Indemnity
Corporation, Financial Guaranty Insurance Company, Financial Security Assurance
and Municipal Bond Investors Assurance Corporation. The Fund also may purchase
Municipal Bonds covered by insurance issued by any other insurance company that
satisfies the foregoing criteria. It is anticipated that initially a majority
of insured Municipal Bonds held by the Fund will be insured under policies
obtained by parties other than the Fund.
 
  The Fund may purchase, but has no obligation to purchase, separate insurance
policies (the "Policies") from insurance companies meeting the criteria set
forth above that guarantee the payment of principal and interest on specified
eligible Municipal Bonds purchased by the Fund. A Municipal Bond will be
eligible for coverage if it meets certain requirements of the insurance company
set forth in a Policy. In the event interest or principal on an insured
Municipal Bond is not paid when due, the insurer will be obligated under its
Policy to make such payment not later than 30 days after it has been notified
by, and provided with documentation from, the Fund that such nonpayment has
occurred.
 
  The Policies will be effective only as to insured Municipal Bonds
beneficially owned by the Fund. In the event of a sale of any Municipal Bonds
held by the Fund, the issuer of the relevant Policy will be liable only for
those payments of interest and principal that are then due and owing. The
Policies will not guarantee the market value of the insured Municipal Bonds or
the value of the shares of the Fund.
 
  The insurer will not have the right to withdraw coverage on securities
insured by their Policies and held by the Fund so long as such securities
remain in the Fund's portfolio. In addition, the insurer may not cancel its
Policies for any reason except failure to pay premiums when due. The Board of
Directors of the Fund will reserve the right to terminate any of the Policies
if it determines that the benefits to the Fund of having its portfolio insured
under such policy are not justified by the expense involved.
 
  The premiums for the Policies are paid by the Fund and the yield on the
Fund's portfolio is reduced thereby. The Investment Adviser estimates that the
cost of the annual premiums for the Policies currently ranges from
approximately .02 of 1% to .15 of 1% of the principal amount of the Municipal
Bonds covered by such Policies. The estimate is based on the expected
composition of the Fund's portfolio of Municipal Bonds. Additional information
regarding the Policies is set forth in Appendix II to this Prospectus. In
instances in
 
                                       13
<PAGE>
 
which the Fund purchases Municipal Bonds insured under policies obtained by
parties other than the Fund, the Fund does not pay the premiums for such
policies; rather, the cost of such policies may be reflected in the purchase
price of the Municipal Bonds.
 
  It is the intention of the Investment Adviser to retain any insured
securities that are in default or in significant risk of default and to place a
value on the insurance, which ordinarily will be the difference between the
market value of the defaulted security and the market value of similar
securities that are not in default. In certain circumstances, however, the
Investment Adviser may determine that an alternate value for the insurance,
such as the difference between the market value of the defaulted security and
its par value, is more appropriate. The Investment Adviser's ability to manage
the portfolio may be limited to the extent it holds defaulted securities, which
may limit its ability in certain circumstances to purchase other Municipal
Bonds. See "Net Asset Value" below for a more complete description of the
Fund's method of valuing defaulted securities and securities that have a
significant risk of default.
 
  There can be no assurance that insurance with the terms and issued by
insurance carriers meeting the criteria described above will continue to be
available to the Fund. In the event the Board of Directors determines that such
insurance is unavailable or that the cost of such insurance outweighs the
benefits to the Fund, the Fund may modify the criteria for insurance carriers
or the terms of the insurance, or may discontinue its policy of maintaining
insurance for all or any of the Municipal Bonds held in the Fund's portfolio.
Although the Investment Adviser periodically reviews the financial condition of
each insurer, there can be no assurance that the insurers will be able to honor
their obligations under all circumstances.
 
  The portfolio insurance reduces financial or credit risk (i.e., the
possibility that the owners of the insured Municipal Bonds will not receive
timely scheduled payments of principal or interest). However, the insured
Municipal Bonds are subject to market risk (i.e., fluctuations in market value
as a result of changes in prevailing interest rates).
 
Description of Municipal Bonds
 
  Municipal Bonds include debt obligations issued to obtain funds for various
public purposes, including construction of a wide range of public facilities,
refunding of outstanding obligations and obtaining funds for general operating
expenses and loans to other public institutions and facilities. In addition,
certain types of industrial development bonds ("IDBs") are issued by or on
behalf of public authorities to finance various privately operated facilities,
including certain local facilities for water supply, gas, electricity, sewage
or solid waste disposal. For purposes of this prospectus, such obligations are
Municipal Bonds if the interest paid thereon is exempt from Federal income tax
even though such bonds may be IDBs or "private activity bonds" as discussed
below. Also, for purposes of this prospectus, Non-Municipal Tax-Exempt
securities as discussed above will be considered Municipal Bonds.
   
  The two principal classifications of Municipal Bonds are "general obligation"
bonds and "revenue" bonds, which latter category includes IDBs and, for bonds
issued after August 15, 1986, private activity bonds. General obligation bonds
are typically secured by the issuer's pledge of faith, credit and taxing power
for the repayment of principal and the payment of interest. Revenue or special
obligation bonds typically are payable only from the revenues derived from a
particular facility or class of facilities or, in some cases, from the proceeds
of a special excise tax or other specific revenue source such as from the user
of the facility being financed. IDBs are in most cases revenue bonds and do not
generally constitute the pledge of the credit or taxing power of the issuer of
such bonds. The repayment of principal and the payment of interest on such     
 
                                       14
<PAGE>
 
industrial development bonds depends solely on the ability of the user of the
facility financed by the bonds to meet its financial obligations and the
pledge, if any, of real and personal property so financed as security for such
payment. Municipal Bonds may also include "moral obligation" bonds, which are
normally issued by special purpose public authorities. If an issuer of moral
obligation bonds is unable to meet its obligations, the repayment of such bonds
becomes a moral commitment but not a legal obligation of the state or
municipality in question.
   
  The Fund may purchase Municipal Bonds classified as "private activity bonds"
(in general, bonds that benefit non-governmental entities). Interest received
on certain tax-exempt securities that are classified as "private activity
bonds" may subject certain investors in the Fund to an alternative minimum tax.
There is no limitation on the percentage of the Fund's assets that may be
invested in Municipal Bonds that may subject certain investors to an
alternative minimum tax. See "Taxes--General." Also included within the general
category of Municipal Bonds are participation certificates issued by government
authorities or entities to finance the acquisition or construction of
equipment, land and/or facilities. The certificates represent participations in
a lease, an installment purchase contract or a conditional sales contract
(hereinafter collectively referred to as "lease obligations") relating to such
equipment, land or facilities. Although lease obligations typically do not
constitute general obligations of the issuer for which the issuer's unlimited
taxing power is pledged, a lease obligation frequently is backed by the
issuer's covenant to budget for, appropriate and make the payments due under
the lease obligation. However, certain lease obligations contain "non-
appropriation" clauses, which provide that the issuer has no obligation to make
lease or installment purchase payments in future years unless money is
appropriated for such purpose on a yearly basis. Although "non-appropriation"
lease obligations are secured by the lease property, disposition of the
property in the event of foreclosure might prove difficult. These securities
represent a relatively new type of financing that has not yet developed the
depth of marketability associated with more conventional securities.     
 
  Federal tax legislation has limited the types and volume of bonds the
interest on which qualifies for a Federal income tax exemption. As a result,
this legislation and legislation that may be enacted in the future may affect
the availability of Municipal Bonds for investment by the Fund.
 
Other Investment Policies
 
  The Fund has adopted certain other policies as set forth below:
 
  Borrowings. The Fund is authorized to borrow money in amounts of up to 5% of
the value of its total assets at the time of such borrowings; provided,
however, that the Fund is authorized to borrow moneys in amounts of up to 33
1/3% of the value of its total assets at the time of such borrowings to finance
the repurchase of its own common stock pursuant to tender offers or otherwise
to redeem or repurchase shares of preferred stock or for temporary,
extraordinary or emergency purposes. Borrowings by the Fund (commonly known, as
with the issuance of preferred stock, as "leveraging") create an opportunity
for greater total return since the Fund will not be required to sell portfolio
securities to repurchase or redeem shares but, at the same time, increase
exposure to capital risk. In addition, borrowed funds are subject to interest
costs that may offset or exceed the return earned on the borrowed funds.
 
  When-Issued Securities and Delayed Delivery Transactions. The Fund may
purchase or sell Municipal Bonds on a delayed delivery basis or on a when-
issued basis at fixed purchase or sale terms. These transactions arise when
securities are purchased or sold by the Fund with payment and delivery taking
place in the future. The purchase will be recorded on the date the Fund enters
into the commitment, and the value of the obligation
 
                                       15
<PAGE>
 
will thereafter be reflected in the calculation of the Fund's net asset value.
The value of the obligation on the delivery day may be more or less than its
purchase price. A separate account of the Fund will be established with its
custodian consisting of cash, cash equivalents or liquid securities having a
market value at all times at least equal to the amount of the commitment.
 
  Indexed and Inverse Floating Obligations. The Fund may invest in Municipal
Bonds yielding a return based on a particular index of value or interest rates.
For example, the Fund may invest in Municipal Bonds that pay interest based on
an index of Municipal Bond interest rates. The principal amount payable upon
maturity of certain Municipal Bonds also may be based on the value of an index.
To the extent the Fund invests in these types of Municipal Bonds, the Fund's
return on such Municipal Bonds will be subject to risk with respect to the
value of the particular index. Also, the Fund may invest in so-called "inverse
floating obligations" or "residual interest bonds" on which the interest rates
typically vary inversely with a short-term floating rate (which may be reset
periodically by a dutch auction, a remarketing agent, or by reference to a
short-term tax-exempt interest rate index). The Fund may purchase in the
secondary market synthetically-created inverse floating rate bonds evidenced by
custodial or trust receipts. Generally, income on inverse floating rate bonds
will decrease when short-term interest rates increase, and will increase when
short-term interest rates decrease. Such securities have the effect of
providing a degree of investment leverage, since they may increase or decrease
in value in response to changes, as an illustration, in market interest rates
at a rate that is a multiple (typically two) of the rate at which fixed-rate,
long-term, tax-exempt securities increase or decrease in response to such
changes. As a result, the market values of such securities generally will be
more volatile than the market values of fixed-rate tax-exempt securities. To
seek to limit the volatility of these securities, the Fund may purchase inverse
floating obligations with shorter-term maturities or limitations on the extent
to which the interest rate may vary. The Investment Adviser believes that
indexed and inverse floating obligations represent a flexible portfolio
management instrument for the Fund that allows the Investment Adviser to vary
the degree of investment leverage relatively efficiently under different market
conditions.
 
  Call Rights. The Fund may purchase a Municipal Bond issuer's right to call
all or a portion of such Municipal Bond for mandatory tender for purchase (a
"Call Right"). A holder of a Call Right may exercise such right to require a
mandatory tender for the purchase of related Municipal Bonds, subject to
certain conditions. A Call Right that is not exercised prior to the maturity of
the related Municipal Bond will expire without value. The economic effect of
holding both the Call Right and the related Municipal Bond is identical to
holding a Municipal Bond as a non-callable security.
 
  Repurchase Agreements. The Fund may invest in securities pursuant to
repurchase agreements. Repurchase agreements may be entered into only with a
member bank of the Federal Reserve System or a 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 at a
mutually agreed-upon time and price, thereby determining the yield during the
term of the agreement. The Fund may not invest in repurchase agreements
maturing in more than seven days if such investments, together with all other
illiquid investments, would exceed 15% of the Fund's net assets. In the event
of default by the seller under a repurchase agreement, the Fund may suffer time
delays and incur costs or possible losses in connection with the disposition of
the underlying securities.
 
  In general, for Federal income tax purposes, repurchase agreements are
treated as collateralized loans secured by the securities "sold." Therefore,
amounts earned under such agreements will not be considered tax-exempt
interest.
 
                                       16
<PAGE>
 
Options and Futures Transactions
 
  The Fund may hedge all or a portion of its portfolio investments against
fluctuations in interest rates through the use of options and certain financial
futures contracts and options thereon. While the Fund's use of hedging
strategies is intended to reduce the volatility of the net asset value of the
common stock, the net asset value of the common stock will fluctuate. There can
be no assurance that the Fund's hedging transactions will be effective. In
addition, because of the anticipated leveraged nature of the common stock,
hedging transactions will result in a larger impact on the net asset value of
the common stock than would be the case if the common stock were not leveraged.
Furthermore, the Fund may only engage in hedging activities from time to time
and may not necessarily be engaging in hedging activities when movements in
interest rates occur. The Fund has no obligation to enter into hedging
transactions and may not do so.
 
  Certain Federal income tax requirements may limit the Fund's ability to
engage in hedging transactions. Gains from transactions in options and futures
contracts distributed to shareholders will be taxable as ordinary income or, in
certain circumstances, as long-term capital gains to shareholders. See "Taxes--
Tax Treatment of Options and Futures Transactions." In addition, in order to
obtain ratings of the preferred stock from one or more nationally recognized
statistical ratings organizations ("NRSROs"), the Fund may be required to limit
its use of hedging techniques in accordance with the specified guidelines of
such organizations.
 
  The following is a description of the options and futures transactions in
which the Fund may engage, limitations on the Fund's use of such transactions
and risks associated with these transactions. The investment policies with
respect to the hedging transactions of the Fund are not fundamental policies
and may be modified by the Board of Directors of the Fund without the approval
of the Fund's shareholders.
 
  Writing Covered Call Options. The Fund may write (i.e., sell) covered call
options with respect to Municipal Bonds it owns, thereby giving the holder of
the option the right to buy the underlying security covered by the option from
the Fund at the stated exercise price until the option expires. The Fund writes
only covered call options, which means that so long as the Fund is obligated as
the writer of a call option, it will own the underlying securities subject to
the option. The Fund may not write covered call options on underlying
securities in an amount exceeding 15% of the market value of its total assets.
 
  The Fund will receive a premium from writing a call option, which increases
the Fund's return on the underlying security in the event the option expires
unexercised or is closed out at a profit. By writing a call, the Fund limits
its opportunity to profit from an increase in the market value of the
underlying security above the exercise price of the option for as long as the
Fund's obligation as a writer continues. Covered call options may serve as a
partial hedge against a decline in the price of the underlying security. The
Fund may engage in closing transactions in order to terminate outstanding
options that it has written.
 
  Purchase of Options. The Fund may purchase put options in connection with its
hedging activities. By buying a put the Fund has a right to sell the underlying
security at the exercise price, thus limiting the Fund's risk of loss through a
decline in the market value of the security until the put expires. The amount
of any appreciation in the value of the underlying security will be partially
offset by the amount of the premium paid for the put option and any related
transaction costs. Prior to its expiration, a put option may be sold in a
closing sale transaction; profit or loss from the sale will depend on whether
the amount received is more or less than the premium paid for the put option
plus the related transaction costs. A closing sale transaction cancels out the
Fund's position as the purchaser of an option by means of an offsetting sale of
an identical option prior to the
 
                                       17
<PAGE>
 
expiration of the option it has purchased. In certain circumstances, the Fund
may purchase call options on securities held in its portfolio on which it has
written call options or on securities that it intends to purchase. The Fund
will not purchase options on securities if, as a result of such purchase, the
aggregate cost of all outstanding options on securities held by the Fund would
exceed 5% of the market value of the Fund's total assets.
 
  Financial Futures Contracts and Options. The Fund is authorized to purchase
and sell certain financial futures contracts and options thereon solely for the
purpose of hedging its investments in Municipal Bonds against declines in value
and to hedge against increases in the cost of securities it intends to
purchase. A financial futures contract obligates the seller of a contract to
deliver and the purchaser of a contract to take delivery of the type of
financial instrument covered by the contract or, in the case of index-based
futures contracts, to make and accept a cash settlement, at a specific future
time for a specified price. A sale of financial futures contracts may provide a
hedge against a decline in the value of portfolio securities because such
depreciation may be offset, in whole or in part, by an increase in the value of
the position in the financial futures contracts. A purchase of financial
futures contracts may provide a hedge against an increase in the cost of
securities intended to be purchased because such appreciation may be offset, in
whole or in part, by an increase in the value of the position in the futures
contracts.
 
  The purchase or sale of a futures contract differs from the purchase or sale
of a security in that no price or premium is paid or received. Instead, an
amount of cash or securities acceptable to the broker equal to approximately 5%
of the contract amount must be deposited with the broker. This amount is known
as initial margin. Subsequent payments to and from the broker, called variation
margin, are made on a daily basis as the price of the financial futures
contract fluctuates making the long and short positions in the financial
futures contract more or less valuable.
 
  The Fund may purchase and sell financial futures contracts based on The Bond
Buyer Municipal Bond Index, a price-weighted measure of the market value of 40
large tax-exempt issues, and purchase and sell put and call options on such
financial futures contracts for the purpose of hedging Municipal Bonds that the
Fund holds or anticipates purchasing against adverse changes in interest rates.
The Fund also may purchase and sell financial futures contracts on U.S.
Government securities and purchase and sell put and call options on such
financial futures contracts for such hedging purposes. With respect to U.S.
Government securities, currently there are financial futures contracts based on
long-term U.S. Treasury bonds, U.S. Treasury notes, GNMA Certificates and
three-month U.S. Treasury bills.
 
  Subject to policies adopted by the Board of Directors, the Fund also may
engage in transactions in other financial futures contracts, such as financial
futures contracts on other municipal bond indices that may become available, if
the Investment Adviser should determine that there is normally sufficient
correlation between the prices of such financial futures contracts and the
Municipal Bonds in which the Fund invests to make such hedging appropriate.
 
  Over-The-Counter Options. The Fund may engage in options and futures
transactions on exchanges and in the over-the-counter markets ("OTC options").
In general, exchange-traded contracts are third-party contracts (i.e.,
performance of the parties' obligations is guaranteed by an exchange or
clearing corporation) with standardized strike prices and expiration dates. OTC
options transactions are two-party contracts with prices and terms negotiated
by the buyer and seller. See "Restrictions on OTC Options" below for
information as to restrictions on the use of OTC options.
 
                                       18
<PAGE>
 
  Restrictions on OTC Options. The Fund will engage in transactions in OTC
options only with banks or dealers that have capital of at least $50 million or
whose obligations are guaranteed by an entity having capital of at least $50
million. Certain OTC options and assets used to cover OTC options written by
the Fund may be considered to be illiquid. The illiquidity of such options or
assets may prevent a successful sale of such options or assets, result in a
delay of sale, or reduce the amount of proceeds that might otherwise be
realized.
 
  Risk Factors in Options and Futures Transactions. Utilization of futures
transactions involves the risk of imperfect correlation in movements in the
price of financial futures contracts and movements in the price of the security
that is the subject of the hedge. If the price of the financial futures
contract moves more or less than the price of the security that is the subject
of the hedge, the Fund will experience a gain or loss that will not be
completely offset by movements in the price of such security. There is a risk
of imperfect correlation where the securities underlying financial futures
contracts have different maturities, ratings, geographic compositions or other
characteristics than the security being hedged. In addition, the correlation
may be affected by additions to or deletions from the index that serves as a
basis for a financial futures contract. Finally, in the case of financial
futures contracts on U.S. Government securities and options on such financial
futures contracts, the anticipated correlation of price movements between the
U.S. Government securities underlying the futures or options and Municipal
Bonds may be adversely affected by economic, political, legislative or other
developments that have a disparate impact on the respective markets for such
securities.
 
  Under regulations of the Commodity Futures Trading Commission ("CFTC"), the
futures trading activities described herein will not result in the Fund being
deemed a "commodity pool," as defined under such regulations, provided that the
Fund adheres to certain restrictions. In particular, the Fund may purchase and
sell financial futures contracts and options thereon (i) for bona fide hedging
purposes, without regard to the percentage of the Fund's assets committed to
margin and option premiums, and (ii) for non-hedging purposes if, immediately
thereafter, the sum of the amount of initial margin deposits on the Fund's
existing futures positions and option premiums entered into for non-hedging
purposes does not exceed 5% of the market value of the liquidation value of the
Fund's portfolio, after taking into account unrealized profits and unrealized
losses on any such transactions. Margin deposits may consist of cash or
securities acceptable to the broker and the relevant contract market.
 
  When the Fund purchases a financial futures contract, or writes a put option
or purchases a call option thereon, it will maintain an amount of cash, cash
equivalents (e.g., commercial paper and daily tender adjustable notes) or
liquid securities in a segregated account with the Fund's custodian so that the
amount so segregated plus the amount of initial and variation margin held in
the account of its broker equals the market value of the financial futures
contract, thereby ensuring that the use of such financial futures contract is
unleveraged.
 
  Certain risks are involved in options and futures transactions. The
Investment Adviser believes, however, that, because the Fund will engage in
options and futures transactions only for hedging purposes, the Fund's options
and futures portfolio strategies will not subject the Fund to those risks
associated with speculation in options and futures transactions.
 
  The volume of trading in the exchange markets with respect to Municipal Bond
options may be limited, and it is impossible to predict the amount of trading
interest that may exist in such options. In addition, there can be no assurance
that viable exchange markets will continue to be available.
 
                                       19
<PAGE>
 
  The Fund intends to enter into options and futures transactions, on an
exchange or in the over-the-counter market, only if there appears to be a
liquid secondary market for such options or futures. There can be no assurance,
however, that a liquid secondary market will exist at any specific time. Thus,
it may not be possible to close an options or futures transaction. The
inability to close options and futures positions also could have an adverse
impact on the Fund's ability to effectively hedge its portfolio. There is also
the risk of loss by the Fund of margin deposits or collateral in the event of
bankruptcy of a broker with which the Fund has an open position in an option or
financial futures contract.
 
  The liquidity of a secondary market in a financial futures contract may be
adversely affected by "daily price fluctuation limits" established by commodity
exchanges that limit the amount of fluctuation in a financial futures contract
price during a single trading day. Once the daily limit has been reached in the
contract, no trades may be entered into at a price beyond the limit, thus
preventing the liquidation of open futures positions. Prices have in the past
moved beyond the daily limit on a number of consecutive trading days.
 
  If it is not possible to close a financial futures position entered into by
the Fund, the Fund would continue to be required to make daily cash payments of
variation margin in the event of adverse price movements. In such a situation,
if the Fund has insufficient cash, it may have to sell portfolio securities to
meet daily variation margin requirements at a time when it may be
disadvantageous to do so.
 
  The successful use of these transactions also depends on the ability of the
Investment Adviser to forecast correctly the direction and extent of interest
rate movements within a given time frame. To the extent these rates remain
stable during the period in which a financial futures contract is held by the
Fund or move in a direction opposite to that anticipated, the Fund may realize
a loss on the hedging transaction that 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. Furthermore, the Fund will only engage in hedging transactions
from time to time and may not necessarily be engaged in hedging transactions
when movements in interest rates occur.
 
                  RISKS AND SPECIAL CONSIDERATIONS OF LEVERAGE
 
Effects of Leverage
 
  Within approximately three months after the completion of this offering, the
Fund intends to offer shares of preferred stock representing approximately 40%
of the Fund's capital immediately after the issuance of such preferred stock.
There can be no assurance, however, that preferred stock representing such
percentage of the Fund's capital will actually be issued. Issuing the preferred
stock will result in the leveraging of the common stock. Although the Fund's
Board of Directors has not yet determined the terms of the preferred stock
offering, the Fund anticipates that the preferred stock will pay dividends that
will be adjusted over either relatively short-term periods (generally seven to
28 days) or medium-term periods (up to five years). The dividend rate will be
based upon prevailing interest rates for debt obligations of comparable
maturity. The proceeds of the preferred stock offering will be invested in
longer-term obligations in accordance with the Fund's investment objective. The
expenses of the preferred stock, which will be borne by the Fund, will reduce
the net asset value of the common stock. Additionally, under certain
circumstances, when the Fund is required to allocate taxable income to holders
of preferred stock, the Fund anticipates that the terms of the preferred stock
will require the Fund to
 
                                       20
<PAGE>
 
make an additional distribution to such holders in an amount approximately
equal to the tax liability resulting from such allocation (an "Additional
Distribution"). Because under normal market conditions, obligations with
longer maturities produce higher yields than short-term and medium-term
obligations, the Investment Adviser believes that the spread inherent in the
difference between the short-term and medium-term rates (and any Additional
Distribution) paid by the Fund as dividends on the preferred stock and the
longer-term rates received by the Fund may provide holders of common stock
with a potentially higher yield.
 
  The use of leverage, however, involves certain risks to the holders of
common stock. For example, issuance of the preferred stock may result in
higher volatility of the net asset value of the common stock and potentially
more volatility in the market value of the common stock. In addition, changes
in the short-term and medium-term dividend rates on, and the amount of taxable
income allocable to, the preferred stock will affect the yield to holders of
common stock. Leverage will allow holders of common stock to realize a higher
current rate of return than if the Fund were not leveraged as long as the
Fund, while accounting for its costs and operating expenses, is able to
realize a higher net return on its investment portfolio than the then current
dividend rate (and any Additional Distribution) of the preferred stock.
Similarly, since a pro rata portion of the Fund's net realized capital gains
are generally payable to holders of common stock, the effect of leverage will
be to increase the amount of such gains distributed to holders of common
stock. However, short-term, medium-term and long-term interest rates change
from time to time as do their relationships to each other (i.e., the slope of
the yield curve) depending upon such factors as supply and demand forces,
monetary and tax policies and investor expectations. Changes in any or all of
such factors could cause the relationship between short-term, medium-term and
long-term rates to change (i.e., to flatten or to invert the slope of the
yield curve) so that short-term and medium-term rates may substantially
increase relative to the long-term obligations in which the Fund may be
invested. To the extent that the current dividend rate (and any Additional
Distribution) on the preferred stock approaches the net return on the Fund's
investment portfolio, the benefit of leverage to holders of common stock will
be decreased. If the current dividend rate (and any Additional Distribution)
on the preferred stock were to exceed the net return on the Fund's portfolio,
holders of common stock would receive a lower rate of return than if the Fund
were not leveraged. Similarly, since both the cost of issuing the preferred
stock and any decline in the value of the Fund's investments (including
investments purchased with the proceeds from any preferred stock offering)
will be borne entirely by holders of common stock, the effect of leverage in a
declining market would result in a greater decrease in net asset value to
holders of common stock than if the Fund were not leveraged. If the Fund is
liquidated, holders of preferred stock will be entitled to receive liquidating
distributions before any distribution is made to holders of common stock.
 
  In an extreme case, a decline in net asset value could affect the Fund's
ability to pay dividends on the common stock. Failure to make such dividend
payments could adversely affect the Fund's qualification as a regulated
investment company under the Federal tax laws. See "Taxes." However, the Fund
intends to take all measures necessary to make common stock dividend payments.
If the Fund's current investment income is ever insufficient to meet dividend
payments on either the common stock or the preferred stock, the Fund may have
to liquidate certain of its investments. In addition, the Fund will have the
authority to redeem the preferred stock for any reason and may redeem all or
part of the preferred stock under the following circumstances:
 
  . if the Fund anticipates that the leveraged capital structure will result
   in a lower rate of return for any significant amount of time to holders of
   common stock than that obtainable if the common stock were not leveraged,
 
                                      21
<PAGE>
 
  . if the asset coverage for the preferred stock declines below 200% either
    as a result of a decline in the value of the Fund's portfolio investments
    or as a result of the repurchase of common stock in tender offers, or
 
  . in order to maintain the asset coverage guidelines established by the
    NRSROs that have rated the preferred stock.
 
Redemption of the preferred stock or insufficient investment income to make
dividend payments, may reduce the net asset value of the common stock and
require the Fund to liquidate a portion of its investments at a time when it
may be disadvantageous, in the absence of such extraordinary circumstances, to
do so.
 
  As discussed under "Investment Advisory and Management Arrangements," during
periods when the Fund has preferred stock outstanding, the fees paid the
Investment Adviser for investment advisory and management services will be
higher than if the Fund did not issue preferred stock because the fees paid
will be calculated on the basis of the Fund's average weekly net assets,
including proceeds from the sale of preferred stock.
 
  Assuming the use of leverage by issuing preferred stock (paying dividends at
a rate that generally will be adjusted every 28 days) in an amount
representing approximately 40% of the Fund's capital at an annual dividend
rate of 3.375% payable on such preferred stock based on market rates as of the
date of this prospectus, the annual return that the Fund's portfolio must
experience (net of expenses) in order to cover such dividend payments would be
1.35%.
 
  The following table is designed to illustrate the effect on the return to a
holder of common stock of the leverage obtained by the issuance of preferred
stock representing approximately 40% of the Fund's capital, assuming
hypothetical annual returns on the Fund's portfolio of minus 10% to plus 10%.
As the table shows, leverage generally increases the return to stockholders
when portfolio return is positive and decreases the return when portfolio
return is negative. The figures appearing in the table are hypothetical and
actual returns may be greater or less than those appearing in the table.
 
<TABLE>   
   <S>                                                  <C>   <C>   <C>  <C> <C>
   Assumed Portfolio Return
    (net of expenses).................................. (10)%  (5)%  0 %  5% 10%
   Corresponding Common Stock Return................... (19)% (11)% (2)%  6% 14%
</TABLE>    
   
  Leveraging the common stock cannot be fully achieved until preferred stock
is issued and the proceeds of such offering have been invested in long-term
Municipal Bonds.     
 
Portfolio Management and Other Considerations
 
  If short-term or medium-term rates increase or other changes in market
conditions occur to the point where the Fund's leverage could adversely affect
holders of common stock as noted above (or in anticipation of such changes),
the Fund may attempt to shorten the average maturity of its investment
portfolio in order to offset the negative impact of leverage. The Fund also
may attempt to reduce the degree to which it is leveraged by redeeming
preferred stock pursuant to the Fund's Articles Supplementary, which establish
the rights and preferences of the preferred stock, or otherwise by purchasing
shares of preferred stock. Purchases and redemptions of preferred stock,
whether on the open market or in negotiated transactions, are subject to
 
                                      22
<PAGE>
 
limitations under the 1940 Act. In determining whether or not it is in the best
interest of the Fund and its stockholders to redeem or repurchase outstanding
preferred stock, the Board of Directors will take into account a variety of
factors, including the following:
 
  . market conditions,
 
  . the ratio of preferred stock to common stock, and
 
  . the expenses associated with such redemption or repurchase.
 
If market conditions subsequently change, the Fund may sell previously unissued
shares of preferred stock or shares of preferred stock that the Fund had issued
but later repurchased or redeemed.
 
  The Fund intends to apply for ratings of the preferred stock from one or more
NRSROs. In order to obtain these ratings, the Fund may be required to maintain
portfolio holdings that meet the specified guidelines of such organizations.
These guidelines may impose asset coverage requirements that are more stringent
than those imposed by the 1940 Act. The Fund does not anticipate that these
guidelines will impede the Investment Adviser from managing the Fund's
portfolio in accordance with the Fund's investment objective and policies.
Ratings on preferred stock issued by the Fund should not be confused with
ratings on the obligations held by the Fund.
 
  Under the 1940 Act, the Fund is not permitted to issue shares of preferred
stock unless immediately after such issuance the net asset value of the Fund's
portfolio is at least 200% of the liquidation value of the outstanding
preferred stock (expected to equal the original purchase price of the
outstanding shares of preferred stock plus any accumulated and unpaid dividends
thereon and any accumulated and unpaid Additional Distribution). In addition,
the Fund is not permitted to declare any cash dividend or other distribution on
its common stock unless, at the time of such declaration, the net asset value
of the Fund's portfolio (determined after deducting the amount of such dividend
or distribution) is at least 200% of the liquidation value of the outstanding
preferred stock. Under the Fund's proposed capital structure, assuming the sale
of shares of preferred stock representing approximately 40% of the Fund's
capital, the net asset value of the Fund's portfolio is expected to be
approximately 250% of the liquidation value of the Fund's preferred stock. To
the extent possible, the Fund intends to purchase or redeem shares of preferred
stock from time to time to maintain coverage of preferred stock of at least
200%.
 
                            INVESTMENT RESTRICTIONS
 
  The following are fundamental investment restrictions of the Fund and, prior
to issuance of the preferred stock, may not be changed without the approval of
the holders of a majority of the Fund's outstanding shares of common stock
(which for this purpose and under the 1940 Act means the lesser of (i) 67% of
the shares of common stock represented at a meeting at which more than 50% of
the outstanding shares of common stock are represented or (ii) more than 50% of
the outstanding shares). Subsequent to the issuance of the preferred stock, the
following investment restrictions may not be changed without the approval of a
majority of the outstanding shares of common stock and of the outstanding
shares of preferred stock, voting together as a class, and the approval of a
majority of the outstanding shares of preferred stock, voting separately as a
class. The Fund may not:
 
    1. Make investments for the purpose of exercising control or management.
 
                                       23
<PAGE>
 
    2. Purchase or sell real estate, commodities or commodity contracts;
  provided that the Fund may invest in securities secured by real estate or
  interests therein or issued by entities that invest in real estate or
  interest therein, and the Fund may purchase and sell financial futures
  contracts and options thereon.
 
    3. Issue senior securities or borrow money except as permitted by Section
  18 of the 1940 Act.
 
    4. Underwrite securities of other issuers except insofar as the Fund may
  be deemed an underwriter under the Securities Act of 1933, as amended, in
  selling portfolio securities.
 
    5. Make loans to other persons, except that the Fund may purchase
  Municipal Bonds and other debt securities and enter into repurchase
  agreements in accordance with its investment objective, policies and
  limitations.
 
    6. Invest more than 25% of its total assets (taken at market value at the
  time of each investment) in securities of issuers in a single industry;
  provided that, for purposes of this restriction, states, municipalities and
  their political subdivisions are not considered to be part of any industry.
 
Additional investment restrictions adopted by the Fund, which may be changed by
the Board of Directors without shareholder approval, provide that the Fund may
not:
 
    a. Purchase securities of other investment companies, except to the
  extent that such purchases are permitted by applicable law. Applicable law
  currently prohibits the Fund from purchasing the securities of other
  investment companies except if immediately thereafter not more than (i) 3%
  of the total outstanding voting stock of such company is owned by the Fund,
  (ii) 5% of the Fund's total assets, taken at market value, would be
  invested in any one such company, (iii) 10% of the Fund's total assets,
  taken at market value, would be invested in such securities, and (iv) the
  Fund, together with other investment companies having the same investment
  adviser and companies controlled by such companies, owns not more than 10%
  of the total outstanding stock of any one closed-end investment company.
 
    b. Mortgage, pledge, hypothecate or in any manner transfer, as security
  for indebtedness, any securities owned or held by the Fund except as may be
  necessary in connection with borrowings mentioned in investment restriction
  (3) above or except as may be necessary in connection with transactions in
  financial futures contracts and options thereon.
 
    c. Purchase any securities on margin, except that the Fund may obtain
  such short-term credit as may be necessary for the clearance of purchases
  and sales of portfolio securities (the deposit or payment by the Fund of
  initial or variation margin in connection with financial futures contracts
  and options thereon is not considered the purchase of a security on
  margin).
 
    d. Make short sales of securities or maintain a short position or invest
  in put, call, straddle or spread options, except that the Fund may write,
  purchase and sell options and futures on Municipal Bonds, U.S. Government
  obligations and related indices or otherwise in connection with bona fide
  hedging activities and may purchase and sell Call Rights to require
  mandatory tender for the purchase of related Municipal Bonds.
 
  If a percentage restriction on the investment or use of assets set forth
above is adhered to at the time a transaction is effected, later changes in
percentages resulting from changing values will not be considered a violation.
 
  The Investment Adviser of the Fund and Merrill Lynch, Pierce, Fenner & Smith
Incorporated ("Merrill Lynch") are owned and controlled by Merrill Lynch & Co.
("ML & Co."). Because of the affiliation of Merrill Lynch with the Investment
Adviser, the Fund is prohibited from engaging in certain transactions
 
                                       24
<PAGE>
 
involving Merrill Lynch except pursuant to an exemptive order or otherwise in
compliance with the provisions of the 1940 Act and the rules and regulations
thereunder. Included among such restricted transactions will be purchases from
or sales to Merrill Lynch of securities in transactions in which it acts as
principal. An exemptive order has been obtained that permits the Fund to effect
principal transactions with Merrill Lynch in high quality, short-term, tax-
exempt securities subject to conditions set forth in such order. The Fund may
consider in the future requesting an order permitting other principal
transactions with Merrill Lynch, but there can be no assurance that such
application will be made and, if made, that such order would be granted.
 
                             DIRECTORS AND OFFICERS
   
  Information about the Directors, executive officers and the portfolio manager
of the Fund, including their ages and their principal occupations during the
last five years is set forth below. Unless otherwise noted, the address of each
Director, executive officer and portfolio manager is 800 Scudders Mill Road,
Plainsboro, New Jersey 08536.     
 
  Arthur Zeikel (66) -- President and Director(1)(2) -- Chairman of the
Investment Adviser and Merrill Lynch Asset Management, L.P. ("MLAM") (which
terms are used herein include their corporate predecessors) since 1997;
President of the Investment Adviser and MLAM from 1977 to 1997; Chairman of
Princeton Services, Inc. ("Princeton Services") since 1997 and Director thereof
since 1993; President of Princeton Services from 1993 to 1997; Executive Vice
President of Merrill Lynch & Co., Inc. ("ML & Co.") since 1990.
 
  Joe Grills (63) -- Director(2) -- P.O. Box 98, Rapidan, Virginia 22733.
Member of the Committee of Investment of Employee Benefit Assets of the
Financial Executives Institute ("CIEBA") since 1986; Member of CIEBA's
Executive Committee since 1988 and its Chairman from 1991 to 1992; Assistant
Treasurer of International Business Machines Incorporated ("IBM") and Chief
Investment Officer of IBM Retirement Funds from 1986 until 1993; Member of the
Investment Advisory Committees of the State of New York Common Retirement Fund
and the Howard Hughes Medical Institute since 1997; Director, Duke Management
Company since 1992 and elected Vice Chairman in May 1998; Director, LaSalle
Street Fund since 1995; Director, Hotchkis and Wiley Mutual Funds since 1996;
Director, Kimco Realty Corporation since January 1997; Member of the Investment
Advisory Committee of the Virginia Retirement System since 1998; Director,
Montpelier Foundation since December 1998.
 
  Walter Mintz (69) -- Director(2) -- 1114 Avenue of the Americas, New York,
New York 10036. Special Limited Partner of Cumberland Associates (investment
partnership) since 1982.
 
  Robert S. Salomon, Jr. (62) -- Director(2) -- 106 Dolphin Cove Quay,
Stamford, Connecticut 06902. Principal of STI Management (investment adviser)
since 1994; Trustee, The Common Fund since 1980; Chairman and CEO of Salomon
Brothers Asset Management from 1992 until 1995; Chairman of Salomon Brothers
equity mutual funds from 1992 until 1995; Monthly columnist with Forbes
magazine since 1992; Director of Stock Research and U.S. Equity Strategist at
Salomon Brothers from 1975 until 1991.
 
  Melvin R. Seiden (68) -- Director(2) -- 780 Third Avenue, Suite 2502, New
York, New York 10017. Director of Silbanc Properties, Ltd. (real estate,
investment and consulting) since 1987; Chairman and President of Seiden & de
Cuevas, Inc. (private investment firm) from 1964 to 1987.
 
                                       25
<PAGE>
 
  Stephen B. Swensrud (65) -- Director(2) -- 24 Federal Street, Suite 400,
Boston, Massachusetts 02110. Chairman of Fernwood Advisors (investment adviser)
since 1996; Principal, Fernwood Associates (financial consultant) since 1975.
 
  Terry K. Glenn (58) -- 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 Princeton
Funds Distributor, Inc. since 1986 and Director thereof since 1991; President
of Princeton Administrators, L.P. since 1988.
 
  Vincent R. Giordano (54) -- Senior Vice President(1)(2) -- Senior Vice
President of the Investment Adviser and MLAM since 1984; Senior Vice President
of Princeton Services since 1993.
 
  Kenneth A. Jacob (47) -- Vice President(1)(2) -- First Vice President of MLAM
since 1997; Vice President of MLAM from 1984 to 1997; Vice President of the
Investment Adviser since 1984.
 
  Robert A. DiMella, CFA (32) -- Vice President and Portfolio Manager(1)(2) --
 Vice President of MLAM since 1997; Assistant Portfolio Manager of MLAM from
1993 to 1995; Assistant Portfolio Manager with Prudential Investment Advisers
from 1991 to 1993.
   
  Donald C. Burke (38) -- Vice President and Treasurer(1)(2) -- Senior Vice
President and Treasurer of the Investment Adviser and MLAM since 1999; Senior
Vice President and Treasurer of Princeton Services since 1999; Vice President
of PFD since 1999; First Vice President of MLAM from 1997 to 1999; Vice
President of MLAM from 1990 to 1997 and Director of Taxation of MLAM since
1990.     
   
  Alice A. Pellegrino (38) -- Secretary(1)(2) -- Vice President of MLAM since
1999; Attorney with MLAM since 1997; Associate with Kirkpatrick & Lockhart LLP
from 1992 to 1997.     
- --------
(1) Interested person, as defined in the 1940 Act, of the Fund.
(2) Such Director or officer is a director, trustee or officer of one or more
    additional investment companies for which the Investment Adviser or its
    affiliate, MLAM, acts as investment adviser or manager.
 
  In the event that the Fund issues preferred stock, in connection with the
election of the Fund's Directors, holders of shares of preferred stock, voting
as a separate class, will be entitled to elect two of the Fund's Directors, and
the remaining Directors will be elected by all holders of capital stock, voting
as a single class. See "Description of Capital Stock."
 
Compensation of Directors
 
  Pursuant to an Investment Advisory Agreement with the Fund, the Investment
Adviser pays all compensation of officers and employees of the Fund as well as
the fees of all Directors who are affiliated persons of ML & Co. or its
subsidiaries.
 
  The Fund pays each Director not affiliated with the Investment Adviser (each
a "non-affiliated Director") a fee of $1,500 per year plus $250 per meeting
attended, and pays all Director's out-of-pocket expenses relating to attendance
at meetings. The Fund also pays members of the Board's audit committee (the
"Committee"), which consists of all the non-affiliated Directors, an annual fee
of $1,500 plus $250 per Committee meeting attended.
 
                                       26
<PAGE>
 
  The following table sets forth compensation to be paid by the Fund to the
non-affiliated Directors projected through the end of the Fund's first full
fiscal year and, for the calendar year ended December 31, 1998, the aggregate
compensation paid by all investment companies advised by the Investment Adviser
and its affiliate, MLAM ("FAM/MLAM Advised Funds"), to the non-affiliated
Directors.
 
<TABLE>   
<CAPTION>
                                                             Total Compensation
                                             Pension or        from Fund and
                             Aggregate   Retirement Benefits  FAM/MLAM Advised
                            Compensation Accrued as Part of    Funds Paid to
Name of Director             from Fund      Fund Expense         Directors
- ----------------            ------------ ------------------- ------------------
<S>                         <C>          <C>                 <C>
Joe Grills (/1/)...........    $5,000           None              $186,333
Walter Mintz(/1/)..........    $5,000           None              $178,583
Robert S. Salomon, Jr.
 (/1/).....................    $5,000           None              $178,583
Melvin R. Seiden (/1/).....    $5,000           None              $178,583
Stephen B. Swensrud (/1/)..    $5,000           None              $195,583
</TABLE>    
- --------
(1) The Directors serve on the boards of MLAM/FAM Advised Funds as follows: Joe
    Grills (22 registered investment companies consisting of 55 portfolios);
    Walter Mintz (20 registered investment companies consisting of 41
    portfolios); Robert S. Salomon, Jr. (20 registered investment companies
    consisting of 41 portfolios); Melvin R. Seiden (20 registered investment
    companies consisting of 41 portfolios); and Stephen B. Swensrud (23
    registered investment companies consisting of 56 portfolios).
 
                INVESTMENT ADVISORY AND MANAGEMENT ARRANGEMENTS
   
  The Investment Adviser, which is owned and controlled by ML & Co., a
financial services holding company and the parent of Merrill Lynch, provides
the Fund with investment advisory and management services. The Merrill Lynch
Asset Management Group (which includes the Investment Adviser) acts as the
investment adviser to more than 100 registered investment companies and offers
investment advisory services to individuals and institutional accounts. As of
December 1998, the Merrill Lynch Asset Management Group had a total of
approximately $501 billion in investment company and other portfolio assets
under management (approximately $38 billion of which were invested in municipal
securities). This amount includes assets managed for certain affiliates of the
Investment Adviser. The Investment Adviser is a limited partnership, the
partners of which are ML & Co. and Princeton Services. The principal business
address of the Investment Adviser is 800 Scudders Mill Road, Plainsboro, New
Jersey 08536.     
 
  The Investment Advisory Agreement provides that, subject to the supervision
of the Board of Directors of the Fund, the Investment Adviser is responsible
for the actual management of the Fund's portfolio. The responsibility for
making decisions to buy, sell or hold a particular security rests with the
Investment Adviser, subject to review by the Board of Directors.
 
  The Investment Adviser provides the portfolio management for the Fund. Such
portfolio management will consider analyses from various sources (including
brokerage firms with which the Fund does business), make the necessary
investment decisions, and place orders for transactions accordingly. The
Investment Adviser will also be responsible for the performance of certain
administrative and management services for the Fund. Robert A. DiMella is the
portfolio manager of the Fund and is primarily responsible for the Fund's day-
to-day management.
 
  For the services provided by the Investment Adviser under the Investment
Advisory Agreement, the Fund will pay a monthly fee at an annual rate of 0.55
of 1% of the Fund's average weekly net assets (i.e., the
 
                                       27
<PAGE>
 
average weekly value of the total assets of the Fund, including proceeds from
the issuance of shares of preferred stock, minus the sum of accrued liabilities
of the Fund and accumulated dividends on the shares of preferred stock). For
purposes of this calculation, average weekly net assets are determined at the
end of each month on the basis of the average net assets of the Fund for each
week during the month. The assets for each weekly period are determined by
averaging the net assets at the last business day of a week with the net assets
at the last business day of the prior week.
 
  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 investment and
economic research, trading and investment management of the Fund, as well as
the compensation of all Directors of the Fund who are affiliated persons of the
Investment Adviser or any of its affiliates. The Fund pays all other expenses
incurred in the operation of the Fund, including, among other things, expenses
for legal and auditing services, taxes, costs of printing proxies, listing
fees, if any, stock certificates and shareholder reports, charges of the
custodian and the transfer and dividend disbursing agent and registrar, fees
and expenses with respect to the issuance of preferred stock, Securities and
Exchange Commission fees, fees and expenses of non-interested Directors,
accounting and pricing costs, insurance, interest, brokerage costs, litigation
and other extraordinary or non-recurring expenses, mailing and other expenses
properly payable by the Fund. Accounting services are provided to the Fund by
the Investment Adviser, and the Fund reimburses the Investment Adviser for its
costs in connection with such services.
 
  Unless earlier terminated as described below, the Investment Advisory
Agreement will remain in effect for a period of two years from the date of
execution and will remain in effect from year to year thereafter 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 1940 Act)
of any such party. Such contract is not assignable and may be terminated
without penalty on 60 days' written notice at the option of either party
thereto or by the vote of the shareholders of the Fund.
 
  Securities held by the Fund may also be held by, or be appropriate
investments for, other funds or investment advisory clients for which the
Investment Adviser or its affiliates act as an adviser. Because of different
objectives or other factors, a particular security may be bought for an
advisory client when other clients are selling the same security. If purchases
or sales of securities by the Investment Adviser for the Fund or other funds
for which it acts as investment adviser or for other 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. Transactions effected by the Investment Adviser (or
its affiliates) on behalf of more than one of its clients during the same
period may increase the demand for securities being purchased or the supply of
securities being sold, causing an adverse effect on price.
 
Code of Ethics
 
  The Board of Directors of the Fund has adopted a Code of Ethics pursuant to
Rule 17j-1 under the 1940 Act that 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.
 
                                       28
<PAGE>
 
  The Codes require that all employees of the Investment Adviser preclear any
personal securities investment (with limited exceptions, such as U.S.
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 securities. In addition, no employee may purchase or sell any
security that 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" that 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).
 
                             PORTFOLIO TRANSACTIONS
 
  Subject to policies established by the Board of Directors of the Fund, the
Investment Adviser is primarily responsible for the execution of the Fund's
portfolio transactions. In executing such transactions, the Investment Adviser
seeks to obtain the best 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 does not necessarily pay the lowest commission or spread available.
 
  The Fund has no obligation to deal with any broker or dealer in the execution
of transactions in portfolio securities. Subject to providing the best price
and execution, securities firms that provide investment research to the
Investment Adviser, including Merrill Lynch, may receive orders for
transactions by the Fund. Research information provided to the Investment
Adviser by securities firms is supplemental. It does not replace or reduce the
level of services performed by the Investment Adviser and the expenses of the
Investment Adviser will not be reduced because it receives supplemental
research information.
 
  The Fund invests in securities traded in the over-the-counter markets, and
the Fund intends to deal directly with dealers who make markets in the
securities involved, except in those circumstances where better prices and
execution are available elsewhere. Under the 1940 Act, except as permitted by
exemptive order, persons affiliated with the Fund, including Merrill Lynch, are
prohibited from dealing with the Fund as principal in the purchase and sale of
securities. Since transactions in the over-the-counter market usually involve
transactions with dealers acting as principals for their own accounts, the Fund
does not deal with Merrill Lynch and its affiliates in connection with such
transactions except that, pursuant to exemptive orders obtained by the
Investment Adviser, the Fund may engage in principal transactions with Merrill
Lynch in high quality, short-term, tax-exempt securities. See "Investment
Restrictions." However, affiliated persons of the Fund, including Merrill
Lynch, serve as its brokers in certain over-the-counter transactions conducted
on an agency basis.
 
  The Fund also may purchase tax-exempt debt instruments in individually
negotiated transactions with the issuers. Because an active trading market may
not exist for such securities, the prices that the Fund may pay for these
securities or receive on their resale may be lower than that for similar
securities with a more liquid market.
 
 
                                       29
<PAGE>
 
Portfolio Turnover
 
  The Fund may dispose of securities without regard to the time they have been
held when such action, for defensive or other reasons, appears advisable to the
Investment Adviser. While it is not possible to predict turnover rates with any
certainty, presently it is anticipated that the Fund's annual portfolio
turnover rate, under normal circumstances, should be less than 100%. (The
portfolio turnover rate is calculated by dividing the lesser of purchases or
sales of portfolio securities for the particular fiscal year by the monthly
average of the value of the portfolio securities owned by the Fund during the
particular fiscal year. For purposes of determining this rate, all securities
whose maturities at the time of acquisition are one year or less are excluded.)
A high portfolio turnover rate has certain tax consequences and results in
greater transaction costs, which are borne directly by the Fund.
 
                          DIVIDENDS AND DISTRIBUTIONS
 
  The Fund intends to distribute all its net investment income. Dividends from
such net investment income will be declared and paid monthly to holders of
common stock. It is expected that the Fund will commence paying dividends to
holders of common stock within approximately 90 days of the date of this
prospectus. From and after issuance of the preferred stock, monthly
distributions to holders of common stock normally will consist of substantially
all net investment income remaining after the payment of dividends (and any
Additional Distribution) on the preferred stock. All net realized capital
gains, if any, will be distributed pro rata at least annually to holders of
common stock and any preferred stock. While any shares of preferred stock are
outstanding, the Fund may not declare any cash dividend or other distribution
on its common stock, unless at the time of such declaration, (i) all
accumulated preferred stock dividends, including any Additional Distribution,
have been paid, and (ii) the net asset value of the Fund's portfolio
(determined after deducting the amount of such dividend or other distribution)
is at least 200% of the liquidation value of the outstanding preferred stock
(expected to equal the original purchase price of the outstanding shares of
preferred stock plus any accumulated and unpaid dividends thereon and any
accumulated but unpaid Additional Distribution). If the Fund's ability to make
distributions on its common stock is limited, such limitation could under
certain circumstances impair the ability of the Fund to maintain its
qualification for taxation as a regulated investment company, which would have
adverse tax consequences for holders of common stock. See "Taxes."
 
  See "Automatic Dividend Reinvestment Plan" for information concerning the
manner in which dividends and distributions to holders of common stock may be
automatically reinvested in shares of common stock of the Fund. Dividends and
distributions may be taxable to shareholders under certain circumstances as
discussed below, whether they are reinvested in shares of the Fund or received
in cash.
 
                                     TAXES
 
General
 
  The Fund intends to elect and 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, in any
taxable year in which it distributes at least 90% of its taxable net income and
90% of its tax-exempt net income (see below), the Fund (but not its
shareholders) will not be subject to Federal income tax to the extent that it
distributes its net investment income and net realized capital gains. The Fund
intends to distribute substantially all of such income.
 
                                       30
<PAGE>
 
  The Code requires a RIC to pay a nondeductible 4% excise tax to the extent
the RIC does not distribute, during each calendar year, 98% of its ordinary
income, determined on a calendar year basis, and 98% of its capital gains,
determined, in general, on an October 31 year-end, plus certain undistributed
amounts from previous years. The required distributions, however, are based
only on the taxable income of a RIC. The excise tax, therefore, generally will
not apply to the tax-exempt income of a RIC, such as the Fund, that pays
exempt-interest dividends.
 
  The Fund intends to qualify to pay "exempt-interest dividends" as defined in
Section 852(b)(5) of the Code. Under such section if, at the close of each
quarter of its taxable year, at least 50% of the value of its total assets
consists of obligations exempt from Federal income tax ("tax-exempt
obligations") under Section 103(a) of the Code (relating generally to
obligations of a state or local governmental unit), the Fund shall be qualified
to pay exempt-interest dividends to its shareholders. Exempt-interest dividends
are dividends or any part thereof paid by the Fund that are attributable to
interest on tax-exempt obligations and designated by the Fund as exempt-
interest dividends in a written notice mailed to the Fund's shareholders within
60 days after the close of its taxable year. To the extent that the dividends
distributed to the Fund's shareholders are derived from interest income exempt
from tax under Code Section 103(a) and are properly designated as exempt-
interest dividends, they will be excludable from a shareholder's gross income
for Federal income tax purposes. Exempt-interest dividends are included,
however, in determining the portion, if any, of a person's social security and
railroad retirement benefits subject to Federal income taxes. Each shareholder
is advised to consult a tax adviser with respect to whether exempt-interest
dividends retain the exclusion under Code Section 103(a) if such shareholder
would be treated as a "substantial user" or "related person" under Code Section
147(a) with respect to property financed with the proceeds of an issue of
"industrial development bonds" or "private activity bonds," if any, held by the
Fund.
   
  To the extent that the Fund's distributions are derived from interest on its
taxable investments or from an excess of net short-term capital gains over net
long-term capital losses ("ordinary income dividends"), such distributions will
be considered taxable ordinary income for Federal income tax purposes.
Distributions, if any, from an excess of net long-term capital gains over net
short-term capital losses derived from the sale of securities or from certain
transactions in futures or options ("capital gain dividends") are taxable as
long-term capital gains for Federal income tax purposes, regardless of the
length of time the shareholder has owned Fund shares. Certain categories of
capital gains are taxable at different rates. 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 amounts of any exempt-interest dividends
and capital gain dividends, as well as any amount of capital gain dividends in
the different categories of capital gain referred to above. Distributions by
the Fund, whether from exempt-income, ordinary income or capital gains, are not
eligible for the dividends received deduction allowed to corporations under the
Code.     
 
  All or a portion of the Fund's gain from the sale or redemption of tax-exempt
obligations purchased at a market discount will be treated as ordinary income
rather than capital gain. This rule may increase the amount of ordinary income
dividends received by shareholders. 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).
Any loss upon the sale or exchange of Fund shares held for six months or less
will be disallowed to the extent of any exempt-interest dividends received by
the shareholder. In addition, any such loss that is not disallowed under the
rule stated above will be treated as long-term capital loss to the extent of
any capital gain dividends
 
                                       31
<PAGE>
 
received by the shareholder. If the Fund pays a dividend in January that was
declared in the previous October, November or December to shareholders of
record on a specified date in one of such months, then such dividend will be
treated for tax purposes as being paid by the Fund and received by its
shareholders on December 31 of the year in which such dividend was declared.
 
  The Internal Revenue Service ("Service") has taken the position in a revenue
ruling that if a RIC has two or more classes of shares, it may designate
distributions made to each class in any year as consisting of no more than such
class's proportionate share of particular types of income, including exempt-
interest income and net long-term capital gains. A class's proportionate share
of a particular type of income is determined according to the percentage of
total dividends paid by the RIC during such year that was paid to such class.
Consequently, when common stock and one or more series of preferred stock are
outstanding, the Fund intends to designate distributions made to the classes as
consisting of particular types of income in accordance with each class's
proportionate share of such income. Thus, the Fund will designate dividends
paid as exempt-interest dividends in a manner that allocates such dividends
among the holders of common stock and series of preferred stock in proportion
to the total dividends paid to each class during the taxable year, or otherwise
as required by applicable law. Capital gain dividends will similarly be
allocated among the classes in proportion to the total dividends paid to each
class during the taxable year, or otherwise as required by applicable law. When
capital gain or other taxable income is allocated to holders of preferred stock
pursuant to the allocation rules described above, the terms of the preferred
stock may require the Fund to make an additional distribution to or otherwise
compensate such holders for the tax liability resulting from such allocation.
 
  The Code subjects interest received on certain otherwise tax-exempt
securities to an alternative minimum tax. The alternative minimum tax will
apply to interest received on certain "private activity bonds" issued after
August 7, 1986. Private activity bonds are bonds that, although tax-exempt, are
used for purposes other than those generally performed by governmental units
and that benefit non-governmental entities (e.g., bonds used for industrial
development or housing purposes). Income received on such bonds is classified
as an item of "tax preference" that could subject certain investors in such
bonds, including shareholders of the Fund, to an increased alternative minimum
tax. The Fund intends to purchase such "private activity bonds" and will report
to shareholders within 60 days after calendar year-end the portion of its
dividends declared during the year that constitutes an item of tax preference
for alternative minimum tax purposes. The Code further provides that
corporations are subject to an alternative minimum tax based, in part, on
certain differences between taxable income as adjusted for other tax
preferences and the corporation's "adjusted current earnings," which more
closely reflect a corporation's economic income. Because an exempt-interest
dividend paid by the Fund will be included in adjusted current earnings, a
corporate shareholder may be required to pay an alternative minimum tax on
exempt-interest dividends paid by the Fund.
 
  The Fund may invest in instruments the return on which includes
nontraditional features such as indexed principal or interest payments
("nontraditional instruments"). These instruments may be subject to special tax
rules under which the Fund may be required to accrue and distribute income
before amounts due under the obligations are paid. In addition, it is possible
that all or a portion of the interest payments on such nontraditional
instruments could be recharacterized as taxable ordinary income.
 
  If at any time when shares of preferred stock are outstanding the Fund does
not meet the asset coverage requirements of the 1940 Act, the Fund will be
required to suspend distributions to holders of common stock until the asset
coverage is restored. See "Dividends and Distributions." This may prevent the
Fund from distributing at least 90% of its net investment income and may,
therefore, jeopardize the Fund's qualification
 
                                       32
<PAGE>
 
   
for taxation as a RIC. If the Fund were to fail to qualify as a RIC, some or
all of the distributions paid by the Fund would be fully taxable for federal
income tax purposes. Upon any failure to meet the asset coverage requirements
of the 1940 Act, the Fund, in its sole discretion, may redeem shares of
preferred stock in order to maintain or restore the requisite asset coverage
and avoid the adverse consequences to the Fund and its shareholders of failing
to qualify as a RIC. There can be no assurance, however, that any such action
would achieve such objectives.     
 
  As noted above, the Fund must distribute annually at least 90% of its net
taxable and tax-exempt interest income. A distribution will only be counted for
this purpose if it qualifies for the dividends paid deduction under the Code.
Some types of preferred stock that the Fund currently contemplates issuing may
raise an issue as to whether distributions on such preferred stock are
"preferential" under the Code and, therefore, not eligible for the dividends
paid deduction. The Fund intends to issue preferred stock that counsel advises
will not result in the payment of a preferential dividend and may seek a
private letter ruling from the Service to that effect. If the Fund ultimately
relies solely on a legal opinion when it issues such preferred stock, there is
no assurance that the Service would agree that dividends on the preferred stock
are not preferential. If the Service successfully disallowed the dividends paid
deduction for dividends on the preferred stock, the Fund could be disqualified
as a RIC. In this case, dividends on the common stock would not be exempt from
Federal income taxes. Additionally, the Fund would be subject to the
alternative minimum tax.
 
  The value of shares acquired pursuant to the Fund's dividend reinvestment
plan will generally be excluded from gross income to the extent that the cash
amount reinvested would be excluded from gross income. If, when the Fund's
shares are trading at a premium over net asset value, the Fund issues shares
pursuant to the dividend reinvestment plan that have a greater fair market
value than the amount of cash reinvested, it is possible that all or a portion
of such discount (which may not exceed 5% of the fair market value of the
Fund's shares) could be viewed as a taxable distribution. If the discount is
viewed as a taxable distribution, it is also possible that the taxable
character of this discount would be allocable to all of the shareholders,
including shareholders who do not participate in the dividend reinvestment
plan. Thus, shareholders who do not participate in the dividend reinvestment
plan, as well as dividend reinvestment plan participants, might be required to
report as ordinary income a portion of their distributions equal to their
allocable share of the discount.
 
  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 advisers concerning the applicability of the United States
withholding tax.
 
  Under certain Code provisions, some taxpayers may be subject to 31%
withholding tax on certain ordinary income dividends and on capital gain
dividends and redemption payments ("backup withholding"). Generally,
shareholders subject to backup withholding are 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. When establishing an account, an
investor must certify under penalty of perjury that such number is correct and
that such investor is not otherwise subject to backup withholding.
 
  The Code provides that every shareholder required to file a tax return must
include for information purposes on such return the amount of exempt-interest
dividends received from all sources (including the Fund) during the taxable
year.
 
                                       33
<PAGE>
 
Tax Treatment of Options and Futures Transactions
 
  The Fund may purchase or sell municipal bond index financial futures
contracts and interest rate financial futures contracts on U.S. Government
securities. The Fund may also purchase and write call and put options on such
financial futures contracts. In general, unless an election is available to the
Fund or an exception applies, such options and financial futures contracts that
are "Section 1256 contracts" will be "marked to market" for Federal income tax
purposes at the end of each taxable year, i.e., each such option or financial
futures contract will be treated as sold for its fair market value on the last
day of the taxable year, and any gain or loss attributable to Section 1256
contracts will be 60% long-term and 40% short-term capital gain or loss.
Application of these rules to Section 1256 contracts held by the Fund may alter
the timing and character of distributions to shareholders. The mark-to-market
rules outlined above, however, will not apply to certain transactions entered
into by the Fund solely to reduce the risk of changes in price or interest
rates with respect to its investments.
 
  Code Section 1092, which applies to certain "straddles," may affect the
taxation of the Fund's sales of securities and transactions in financial
futures contracts and related options. Under Section 1092, the Fund may be
required to postpone recognition for tax purposes of losses incurred in certain
sales of securities and certain closing transactions in financial futures
contracts or the related options.
 
                               ----------------
 
  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,
the Treasury Regulations promulgated thereunder. The Code and the Treasury
Regulations are subject to change by legislative, judicial or administrative
action either prospectively or retroactively.
 
  Shareholders are urged to consult their tax advisers regarding specific
questions as to Federal, state, local or foreign taxes.
 
                      AUTOMATIC DIVIDEND REINVESTMENT PLAN
 
  Pursuant to the Fund's Automatic Dividend Reinvestment Plan (the "Plan"),
unless a holder of common stock otherwise elects, all dividend and capital
gains distributions will be automatically reinvested by State Street Bank and
Trust Company, as agent for shareholders in administering the Plan (the "Plan
Agent"), in additional shares of common stock of the Fund. Holders of common
stock who elect not to participate in the Plan will receive all distributions
in cash paid by check mailed directly to the shareholder of record (or, if the
shares are held in street or other nominee name, then to such nominee) by State
Street Bank and Trust Company, as dividend paying agent. Such participants may
elect not to participate in the Plan and to receive all distributions of
dividends and capital gains in cash by sending written instructions to State
Street Bank and Trust Company, as dividend paying agent, at the address set
forth below. Participation in the Plan is completely voluntary and may be
terminated or resumed at any time without penalty by written notice if received
by the Plan Agent not less than ten days prior to any dividend record date;
otherwise, such termination or resumption will be effective with respect to any
subsequently declared dividend or distribution.
 
  Whenever the Fund declares an income dividend or a capital gains distribution
(collectively, referred to as "dividends") payable either in shares or in cash,
non-participants in the Plan will receive cash, and participants in the Plan
will receive the equivalent in shares of common stock. The shares will be
acquired by the Plan
 
                                       34
<PAGE>
 
Agent for the participant's account, depending upon the circumstances described
below, either (i) through receipt of additional unissued but authorized shares
of common stock from the Fund ("newly issued shares") or (ii) by purchase of
outstanding shares of common stock on the open market ("open-market purchases")
on the New York Stock Exchange (the "NYSE") or elsewhere. If on the payment
date for the dividend, the net asset value per share of the common stock is
equal to or less than the market price per share of the common stock plus
estimated brokerage commissions (such condition being referred to herein as
"market premium"), the Plan Agent will invest the dividend amount in newly
issued shares on behalf of the participant. The number of newly issued shares
of common stock to be credited to the participant's account will be determined
by dividing the dollar amount of the dividend by the net asset value per share
on the date the shares are issued, provided that the maximum discount from the
then current market price per share on the date of issuance may not exceed 5%.
If on the dividend payment date the net asset value per share is greater than
the market value (such condition being referred to herein as "market
discount"), the Plan Agent will invest the dividend amount in shares acquired
on behalf of the participant in open-market purchases. Prior to the time the
shares of common stock commence trading on the NYSE, participants in the Plan
will receive any dividends in newly issued shares.
 
  In the event of a market discount on the dividend payment date, the Plan
Agent will have until the last business day before the next date on which the
shares trade on an "ex-dividend" basis or in no event more than 30 days after
the dividend payment date (the "last purchase date") to invest the dividend
amount in shares acquired in open-market purchases. It is contemplated that the
Fund will pay monthly income dividends. Therefore, the period during which
open-market purchases can be made will exist only from the payment date on the
dividend through the date before the next "ex-dividend" date, which typically
will be approximately ten days. If, before the Plan Agent has completed its
open-market purchases, the market price of a share of common stock exceeds the
net asset value per share, the average per share purchase prices paid by the
Plan Agent may exceed the net asset value of the Fund's shares, resulting in
the acquisition of fewer shares than if the dividend had been paid in newly
issued shares on the dividend payment date. Because of the foregoing difficulty
with respect to open-market purchases, the Plan provides that if the Plan Agent
is unable to invest the full dividend amount in open-market purchases during
the purchase period or if the market discount shifts to a market premium during
the purchase period, the Plan Agent will cease making open-market purchases and
will invest the uninvested portion of the dividend amount in newly issued
shares at the close of business on the last purchase date.
 
  The Plan Agent maintains all shareholders' accounts in the Plan and furnishes
written confirmation of all transactions in the account, including information
needed by shareholders for tax records. Shares in the account of each Plan
participant will be held by the Plan Agent in non-certificated form in the name
of the participant and each shareholder's proxy will include those shares
purchased or received pursuant to the Plan. The Plan Agent will forward all
proxy solicitation materials to participants and vote proxies for shares held
pursuant to the Plan in accordance with the instructions of the participants.
 
  In the case of shareholders such as banks, brokers or nominees that hold
shares for others who are the beneficial owners, the Plan Agent will administer
the Plan on the basis of the number of shares certified from time to time by
the record shareholders as representing the total amount registered in the
record shareholder's name and held for the account of beneficial owners who are
to participate in the Plan.
 
  There will be no brokerage charges with respect to shares issued directly by
the Fund as a result of dividends or capital gains distributions payable either
in shares or in cash. However, each participant will pay a
 
                                       35
<PAGE>
 
pro rata share of brokerage commissions incurred with respect to the Plan
Agent's open-market purchases in connection with the reinvestment of dividends.
 
  The automatic reinvestment of dividends and distributions will not relieve
participants of any Federal, state or local income tax that may be payable (or
required to be withheld) on such dividends. See "Taxes."
 
  Shareholders participating in the Plan may receive benefits not available to
shareholders not participating in the Plan. If the market price plus
commissions of the Fund's shares is above the net asset value, participants in
the Plan will receive shares of the Fund at less than they could otherwise
purchase them and will have shares with a cash value greater than the value of
any cash distribution they would have received on their shares. If the market
price plus commissions is below the net asset value, participants will receive
distributions in shares with a net asset value greater than the value of any
cash distribution they would have received on their shares. However, there may
be insufficient shares available in the market to make distributions in shares
at prices below the net asset value. Also, since the Fund does not redeem its
shares, the price on resale may be more or less than the net asset value. See
"Taxes" for a discussion of tax consequences of the Plan.
 
  Experience under the Plan may indicate that changes are desirable.
Accordingly, the Fund reserves the right to amend or terminate the Plan. There
is no direct service charge to participants in the Plan; however, the Fund
reserves the right to amend the Plan to include a service charge payable by the
participants.
 
  All correspondence concerning the Plan should be directed to the Plan Agent
at 225 Franklin Street, Boston, Massachusetts 02110.
 
                         MUTUAL FUND INVESTMENT OPTION
 
  Purchasers of shares of common stock of the Fund through Merrill Lynch in
this offering will have an investment option consisting of the right to
reinvest the net proceeds from a sale of such shares (the "Original Shares") in
Class D initial sales charge shares of certain Merrill Lynch-sponsored open-end
mutual funds ("Eligible Class D Shares") at their net asset value, without the
imposition of the initial sales charge, if the conditions set forth below are
satisfied. First, the sale of the Original Shares must be made through Merrill
Lynch, and the net proceeds therefrom must be immediately reinvested in
Eligible Class D Shares. Second, the Original Shares must have been either
acquired in this offering or be shares representing reinvested dividends from
shares of common stock acquired in this offering. Third, the Original Shares
must have been continuously maintained in a Merrill Lynch securities account.
Fourth, there must be a minimum purchase of $250 to be eligible for the
investment option. Class D shares of the mutual funds are subject to an account
maintenance fee at an annual rate of up to 0.25% of the average daily net asset
value of such mutual fund. The Eligible Class D Shares may be redeemed at any
time at the next determined net asset value, subject in certain cases to a
redemption fee. Prior to the time the shares of common stock commence trading
on the NYSE, the distributor for the mutual funds will advise Merrill Lynch
Financial Consultants as to those mutual funds that offer the investment option
described above.
 
                                NET ASSET VALUE
 
  Net asset value per share of common stock is determined as of 15 minutes
after the close of business on the NYSE (generally, the NYSE closes at 4:00
p.m., Eastern time) on the last business day in each week. For purposes of
determining the net asset value of a share of common stock, the value of the
securities held by the Fund plus any cash or other assets (including interest
accrued but not yet received) minus all liabilities
 
                                       36
<PAGE>
 
(including accrued expenses) and the aggregate liquidation value of the
outstanding shares of preferred stock is divided by the total number of shares
of common stock outstanding at such time. Expenses, including the fees payable
to the Investment Adviser, are accrued daily.
 
  The Municipal Bonds in which the Fund invests are traded primarily in the
over-the-counter markets. In determining net asset value, the Fund utilizes the
valuations of portfolio securities furnished by a pricing service approved by
the Board of Directors. The pricing service typically values portfolio
securities at the bid price or the yield equivalent when quotations are readily
available. Municipal Bonds for which quotations are not readily available are
valued at fair market value on a consistent basis as determined by the pricing
service using a matrix system to determine valuations. The procedures of the
pricing service and its valuations are reviewed by the officers of the Fund
under the general supervision of the Board of Directors. The Board of Directors
has determined in good faith that the use of a pricing service is a fair method
of determining the valuation of portfolio securities. Positions in futures
contracts are valued at closing prices for such contracts established by the
exchange on which they are traded, or if market quotations are not readily
available, are valued at fair value on a consistent basis using methods
determined in good faith by the Board of Directors.
 
  The Fund determines and makes available for publication the net asset value
of its common stock weekly. Currently, the net asset values of shares of
publicly traded closed-end investment companies investing in debt securities
are published in Barron's, the Monday edition of The Wall Street Journal, and
the Monday and Saturday editions of The New York Times.
 
                          DESCRIPTION OF CAPITAL STOCK
 
  The Fund is authorized to issue 200,000,000 shares of capital stock, par
value $.10 per share, all of which shares are initially classified as common
stock. The Board of Directors is authorized, however, to classify or reclassify
any unissued shares of capital stock by setting or changing the preferences,
conversion or other rights, voting powers, restrictions, limitations as to
dividends, qualifications, or terms or conditions of redemption. Within
approximately three months after completion of the offering of the common stock
described herein, the Fund intends to reclassify an amount of unissued common
stock as preferred stock and at that time to offer shares of preferred stock
representing approximately 40% of the Fund's capital immediately after the
issuance of such preferred stock. There is no assurance that such preferred
stock will be issued.
 
Common Stock
 
  Shares of common stock, when issued and outstanding, will be fully paid and
non-assessable. Shareholders are entitled to share pro rata in the net assets
of the Fund available for distribution to shareholders upon liquidation of the
Fund. Shareholders are entitled to one vote for each share held.
 
  So long as any shares of the Fund's preferred stock are outstanding, holders
of common stock will not be entitled to receive any net income of or other
distributions from the Fund unless all accumulated dividends on preferred stock
have been paid and unless asset coverage (as defined in the 1940 Act) with
respect to preferred stock would be at least 200% after giving effect to such
distributions. See "Preferred Stock" below.
 
  The Fund will send unaudited reports at least semi-annually and audited
annual financial statements to all of its shareholders.
 
                                       37
<PAGE>
 
  The Investment Adviser provided the initial capital for the Fund by
purchasing 6,667 shares of common stock of the Fund for $100,005. As of the
date of this prospectus, the Investment Adviser owned 100% of the outstanding
shares of common stock of the Fund. The Investment Adviser may be deemed to
control the Fund until such time as it owns less than 25% of the outstanding
shares of the Fund.
 
Preferred Stock
 
  It is anticipated that the Fund's shares of preferred stock will be issued in
one or more series, with rights as determined by the Board of Directors, by
action of the Board of Directors without the approval of the holders of common
stock. Under the 1940 Act, the Fund is permitted to have outstanding more than
one series of preferred stock so long as no single series has a priority over
another series as to the distribution of assets of the Fund or the payment of
dividends. Holders of common stock have no preemptive right to purchase any
shares of preferred stock that might be issued. It is anticipated that the net
asset value per share of the preferred stock will equal its original purchase
price per share plus accumulated dividends per share.
 
  The Fund's Board of Directors has declared its intention to authorize an
offering of shares of preferred stock (representing approximately 40% of the
Fund's capital immediately after the issuance of such preferred stock) within
approximately three months after completion of the offering of common stock,
subject to market conditions and to the Board's continuing to believe that
leveraging the Fund's capital structure through the issuance of preferred stock
is likely to achieve the benefits to the holders of common stock described in
the prospectus. Although the terms of the preferred stock, including its
dividend rate, voting rights, liquidation preference and redemption provisions
will be determined by the Board of Directors (subject to applicable law and the
Fund's Articles of Incorporation), the initial series of preferred stock will
be structured to carry either a relatively short-term dividend rate, in which
case periodic redetermination of the dividend rate will be made at relatively
short intervals (generally seven or 28 days), or a medium-term dividend rate,
in which case periodic redetermination of the dividend rate will be made at
intervals of up to five years. In either case, such redetermination of the
dividend rate will be made through an auction or remarketing procedure.
Additionally, under certain circumstances, when the Fund is required to
allocate taxable income to holders of the preferred stock, it is anticipated
that the terms of the preferred stock will require the Fund to make an
Additional Distribution (as defined in "Risks and Special Considerations of
Leverage--Effects of Leverage") to such holders. The Board also has indicated
that it is likely that the liquidation preference, voting rights and redemption
provisions of the preferred stock will be as stated below. The Fund's Articles
of Incorporation, as amended, together with any Articles Supplementary, is
referred to below as the "Charter."
 
  Liquidation Preference. In the event of any voluntary or involuntary
liquidation, dissolution or winding up of the Fund, the holders of shares of
preferred stock will be entitled to receive a preferential liquidating
distribution (expected to equal the original purchase price per share plus an
amount equal to accumulated and unpaid dividends whether or not earned or
declared and any accumulated and unpaid Additional Distribution) before any
distribution of assets is made to holders of common stock. After payment of the
full amount of the liquidating distribution to which they are entitled, the
preferred stockholders will not be entitled to any further participation in any
distribution of assets by the Fund. A consolidation or merger of the Fund with
or into any other corporation or corporations or a sale of all or substantially
all of the assets of the Fund will not be deemed to be a liquidation,
dissolution or winding up of the Fund.
 
  Voting Rights. Except as otherwise indicated in this prospectus and except as
otherwise required by applicable law, holders of shares of preferred stock will
have equal voting rights with holders of shares of common stock (one vote per
share) and will vote together with holders of common stock as a single class.
 
                                       38
<PAGE>
 
  In connection with the election of the Fund's directors, holders of shares of
preferred stock, voting as a separate class, will be entitled to elect two of
the Fund's directors, and the remaining directors will be elected by all
holders of capital stock, voting as a single class. So long as any preferred
stock is outstanding, the Fund will have not less than five directors. If at
any time dividends on shares of the Fund's preferred stock shall be unpaid in
an amount equal to two full years' dividends thereon, the holders of all
outstanding shares of preferred stock, voting as a separate class, will be
entitled to elect a majority of the Fund's directors until all dividends in
default have been paid or declared and set apart for payment.
 
  The affirmative vote of the holders of a majority of the outstanding shares
of the preferred stock, voting as a separate class, will be required to (i)
authorize, create or issue any class or series of stock ranking prior to any
series of preferred stock with respect to payment of dividends or the
distribution of assets on liquidation or (ii) amend, alter or repeal the
provisions of the Charter, whether by merger, consolidation or otherwise, so as
to adversely affect any of the contract rights expressly set forth in the
Charter of holders of preferred stock.
 
  Redemption Provisions. It is anticipated that shares of preferred stock will
generally be redeemable at the option of the Fund at a price equal to their
liquidation preference plus accumulated but unpaid dividends to the date of
redemption plus, under certain circumstances, a redemption premium. Shares of
preferred stock will also be subject to mandatory redemption at a price equal
to their liquidation preference plus accumulated but unpaid dividends to the
date of redemption upon the occurrence of certain specified events, such as the
failure of the Fund to maintain asset coverage requirements for the preferred
stock specified by the rating agencies that issue ratings on the preferred
stock.
 
Certain Provisions of the Articles of Incorporation
 
  The Fund's Articles of Incorporation include provisions that could have the
effect of limiting the ability of other entities or persons to acquire control
of the Fund or to change the composition of its Board of Directors and could
have the effect of depriving shareholders of an opportunity to sell their
shares at a premium over prevailing market prices by discouraging a third party
from seeking to obtain control of the Fund. A director may be removed from
office with or without cause, but only by vote of the holders of at least 66
2/3% of the votes entitled to be voted on the matter. A director elected by all
the holders of capital stock may be removed only by action of such holders, and
a director elected by the holders of preferred stock may be removed only by
action of such holders.
 
  In addition, the Articles of Incorporation require the favorable vote of the
holders of at least 66 2/3% of the Fund's shares of capital stock then entitled
to be voted, voting as a single class, to approve, adopt or authorize the
following:
 
    .  a merger or consolidation or statutory share exchange of the Fund
       with other corporations,
 
    .  a sale of all or substantially all of the Fund's assets (other than
       in the regular course of the Fund's investment activities), or
 
    .  a liquidation or dissolution of the Fund, unless such action has
       been approved, adopted or authorized by the affirmative vote of two-
       thirds of the total number of Directors fixed in accordance with the
       by-laws, in which case the affirmative vote of a majority of the
       Fund's shares of capital stock is required. Following the proposed
       issuance of the preferred stock, it is anticipated that the
       approval, adoption or authorization of the foregoing would also
       require the favorable vote of a majority of the Fund's shares of
       preferred stock then entitled to be voted, voting as a separate
       class.
 
                                       39
<PAGE>
 
  In addition, conversion of the Fund to an open-end investment company would
require an amendment to the Fund's Articles of Incorporation. The amendment
would have to be declared advisable by the Board of Directors prior to its
submission to shareholders. Such an amendment would require the favorable vote
of the holders of at least 66 2/3% of the Fund's outstanding shares of capital
stock (including any preferred stock) entitled to be voted on the matter,
voting as a single class (or a majority of such shares if the amendment was
previously approved, adopted or authorized by two-thirds of the total number of
Directors fixed in accordance with the by-laws), and, assuming preferred stock
is issued, the affirmative vote of a majority of outstanding shares of
preferred stock of the Fund, voting as a separate class. Such a vote also would
satisfy a separate requirement in the 1940 Act that the change be approved by
the shareholders. Shareholders of an open-end investment company may require
the company to redeem their shares of common stock at any time (except in
certain circumstances as authorized by or under the 1940 Act) at their net
asset value, less such redemption charge, if any, as might be in effect at the
time of a redemption. All redemptions will be made in cash. If the Fund is
converted to an open-end investment company, it could be required to liquidate
portfolio securities to meet requests for redemption, and the common stock
would no longer be listed on a stock exchange.
 
  Conversion to an open-end investment company would also require redemption of
all outstanding shares of preferred stock and would require changes in certain
of the Fund's investment policies and restrictions, such as those relating to
the issuance of senior securities, the borrowing of money and the purchase of
illiquid securities.
 
  The Board of Directors has determined that the 66 2/3% voting requirements
described above, which are greater than the minimum requirements under Maryland
law or the 1940 Act, are in the best interests of shareholders generally.
Reference should be made to the Charter on file with the Securities and
Exchange Commission for the full text of these provisions.
 
                                   CUSTODIAN
 
  The Fund's securities and cash are held under a custodial agreement with
State Street Bank and Trust Company, 225 Franklin Street, Boston, Massachusetts
02110.
 
                                  UNDERWRITING
   
  Merrill Lynch, Pierce, Fenner & Smith Incorporated (the "Underwriter") has
agreed, subject to the terms and conditions of a Purchase Agreement with the
Fund and the Investment Adviser, to purchase 9,600,000 shares of common stock
from the Fund. The Underwriter is committed to purchase all of such shares if
any are purchased.     
   
  The Underwriter has advised the Fund that it proposes initially to offer the
shares of common stock to the public at the public offering price set forth on
the cover page of this prospectus. There is no sales charge or underwriting
discount charged to investors on purchases of shares of common stock in the
offering. The Investment Adviser or an affiliate has agreed to pay the
Underwriter from its own assets a commission in connection with the sale of
shares of common stock in the offering in the amount of $.30 per share. Such
payment is equal to 2.00% of the initial public offering price per share. The
Underwriter also has advised the Fund that from this amount the Underwriter may
pay a concession to certain dealers not in excess of $.30 per     
 
                                       40
<PAGE>
 
   
share on sales by such dealers. After the initial public offering, the public
offering price and other selling terms may be changed. Investors must pay for
shares of common stock purchased in the offering on or before February 26,
1999.     
   
  The Fund has granted the Underwriter an option, exercisable for 45 days after
the date hereof, to purchase up to 1,440,000 additional shares of common stock
to cover over-allotments, if any, at the initial offering price.     
 
  The Underwriter may engage in certain transactions that stabilize the price
of the shares of common stock. Such transactions consist of bids or purchases
for the purpose of pegging, fixing or maintaining the price of the shares of
common stock.
 
  If the Underwriter creates a short position in the shares of common stock in
connection with the offering, i.e., if it sells more shares of common stock
than are set forth on the cover page of this prospectus, the Underwriter may
reduce that short position by purchasing shares of common stock in the open
market. The Underwriter also may elect to reduce any short position by
exercising all or part of the over-allotment option described above.
 
  The Underwriter also may impose a penalty bid on certain selling group
members. This means that if the Underwriter purchases shares of common stock in
the open market to reduce the Underwriter's short position or to stabilize the
price of the shares of common stock, it may reclaim the amount of the selling
concession from the selling group members who sold those shares of common stock
as part of the offering.
 
  In general, purchases of a security for the purpose of stabilization or to
reduce a short position could cause the price of the security to be higher than
it might be in the absence of such purchases. The imposition of a penalty bid
might also have an effect on the price of a security to the extent that it were
to discourage resales of the security.
 
  Neither the Fund nor the Underwriter makes any representation or prediction
as to the direction or magnitude of any effect that the transactions described
above may have on the price of the shares of common stock. In addition, neither
the Fund nor the Underwriter makes any representation that the Underwriter will
engage in such transactions or that such transactions, once commenced, will not
be discontinued without notice.
   
  Prior to this offering, there has been no public market for the shares of the
common stock. The Fund's common stock has been approved for listing on the
NYSE. However, during an initial period which is not expected to exceed two
weeks from the date of this prospectus, the Fund's common stock will not be
listed on any securities exchange. Additionally, before it begins trading, the
Underwriter does not intend to make a market in the Fund's common stock,
although a limited market may develop. Thus, it is anticipated that investors
may not be able to buy and sell shares of the Fund during such period. In order
to meet the requirements for listing, the Underwriter has undertaken to sell
lots of 100 or more shares to a minimum of 2,000 beneficial owners.     
 
  The Fund anticipates that the Underwriter may from time to time act as a
broker in connection with the execution of its portfolio transactions. The Fund
has obtained an exemptive order permitting it to engage in certain principal
transactions with the Underwriter involving high quality, short-term, tax-
exempt securities subject to certain conditions. See "Investment Restrictions"
and "Portfolio Transactions."
 
  The Underwriter is an affiliate of the Investment Adviser of the Fund.
 
                                       41
<PAGE>
 
  The Fund and the Investment Adviser have agreed to indemnify the Underwriter
against certain liabilities, including liabilities under the Securities Act of
1933.
 
            TRANSFER AGENT, DIVIDEND DISBURSING AGENT AND REGISTRAR
 
  The transfer agent, dividend disbursing agent and registrar for the shares of
common stock of the Fund is State Street Bank and Trust Company, 225 Franklin
Street, Boston, Massachusetts 02110.
 
                                 LEGAL OPINIONS
 
  Certain legal matters in connection with the common stock offered hereby will
be passed upon for the Fund and the Underwriter by Brown & Wood LLP, New York,
New York.
 
                                    EXPERTS
   
  Ernst & Young LLP, independent auditors, have audited the statement of
assets, liabilities and capital of the Fund as of February 18, 1999 which is
included in this Prospectus and Registration Statement as set forth in their
report which appears in this Prospectus and Registration Statement. The
statement of assets, liabilities and capital is included in reliance upon their
report, given on their authority as experts in accounting and auditing. The
selection of independent auditors is subject to ratification by shareholders of
the Fund.     
 
                             ADDITIONAL INFORMATION
 
  The Fund is subject to the informational requirements of the Securities
Exchange Act of 1934 and the 1940 Act and in accordance therewith is required
to file reports, proxy statements and other information with the Securities and
Exchange Commission (the "Commission"). Any such reports, proxy statements and
other information can be inspected and copied at the public reference
facilities of the Commission at Room 1024, Judiciary Plaza, 450 Fifth Street,
N.W., Washington, D.C. 20549, and at the following regional offices of the
Commission: Regional Office, at Seven World Trade Center, Suite 1300, New York,
New York 10048; Pacific Regional Office, at 5670 Wilshire Boulevard, 11th
Floor, Los Angeles, California 90036; and Midwest Regional Office, at
Northwestern Atrium Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661-2511. Copies of such materials can be obtained from the public
reference section of the Commission at 450 Fifth Street, N.W., Washington, D.C.
20549, at prescribed rates. The Commission maintains a Web site at
http://www.sec.gov containing reports, proxy and information statements and
other information regarding registrants, including the Fund, that file
electronically with the Commission. Reports, proxy statements and other
information concerning the Fund can also be inspected at the offices of the New
York Stock Exchange, 20 Broad Street, New York, New York 10005.
 
  Additional information regarding the Fund is contained in the Registration
Statement on Form N-2, including amendments, exhibits and schedules thereto,
relating to such shares filed by the Fund with the Commission in Washington,
D.C. This prospectus does not contain all of the information set forth in the
Registration Statement, including any amendments, exhibits and schedules
thereto. For further information with respect to the Fund and the shares
offered hereby, reference is made to the Registration Statement. Statements
 
                                       42
<PAGE>
 
contained in this prospectus as to the contents of any contract or other
document referred to are not necessarily complete and in each instance
reference is made to the copy of such contract or other document filed as an
exhibit to the Registration Statement, each such statement being qualified in
all respects by such reference. A copy of the Registration Statement may be
inspected without charge at the Commission's principal office in Washington,
D.C., and copies of all or any part thereof may be obtained from the Commission
upon the payment of certain fees prescribed by the Commission.
 
Year 2000 Issues
 
  Many computer systems were designed using only two digits to designate years.
These systems may not be able to distinguish the Year 2000 from the Year 1900
(commonly known as the "Year 2000 Problem"). The Fund could be adversely
affected if the computer systems used by the Investment Adviser or other Fund
service providers do not properly address this problem before January 1, 2000.
The Investment Adviser expects to have addressed this problem before then, and
does not anticipate that the services it provides will be adversely affected.
The Fund's other service providers have told the Investment Adviser that they
also expect to resolve the Year 2000 Problem, and the Investment Adviser will
continue to monitor the situation as the Year 2000 approaches. However, if the
problem has not been fully addressed, the Fund could be negatively affected.
The Year 2000 Problem could also have a negative impact on the issuers of
securities in which the Fund invests, and this could hurt the Fund's investment
returns.
 
                                       43
<PAGE>
 
                         REPORT OF INDEPENDENT AUDITORS
 
To the Board of Directors and Shareholder of
 MuniHoldings Insured Fund II, Inc.:
   
We have audited the accompanying statement of assets, liabilities and capital
of MuniHoldings Insured Fund II, Inc. as of February 18, 1999. This statement
of assets, liabilities and capital is the responsibility of the Fund's
management. Our responsibility is to express an opinion on this statement of
assets, liabilities and capital based on our audit.     
 
We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the statement of assets, liabilities and
capital is free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the statement of
assets, liabilities and capital. An audit also includes assessing the
accounting principles used and significant estimates made by management, as
well as evaluating the overall statement of assets, liabilities and capital
presentation. We believe that our audit provides a reasonable basis for our
opinion.
   
In our opinion, the statement of assets, liabilities and capital referred to
above presents fairly, in all material respects, the financial position of
MuniHoldings Insured Fund II, Inc. at February 18, 1999 in conformity with
generally accepted accounting principles.     
                                             
                                          Ernst & Young LLP     
   
Princeton, New Jersey     
   
February 19, 1999     
 
                                       44
<PAGE>
 
                       MuniHoldings Insured Fund II, Inc.
 
                  Statement of Assets, Liabilities and Capital
                                
                             February 18, 1999     
 
<TABLE>   
<S>                                                                    <C>
ASSETS
  Cash................................................................ $100,005
  Offering costs (Note 1).............................................  257,000
                                                                       --------
    Total assets......................................................  357,005
                                                                       --------
LIABILITIES
  Liabilities and accrued expenses (Note 1)...........................  257,000
                                                                       --------
NET ASSETS............................................................ $100,005
                                                                       ========
CAPITAL
  Common Stock, par value $.10 per share; 200,000,000 shares
   authorized; 6,667 shares issued and outstanding (Note 1)........... $    667
  Paid-in Capital in excess of par....................................   99,338
                                                                       --------
  Total Capital-Equivalent to $15.00 net asset value per share of
   Common Stock (Note 1).............................................. $100,005
                                                                       ========
</TABLE>    
 
                         Notes to Financial Statements
 
Note 1. Organization
   
  The Fund was incorporated under the laws of the State of Maryland on December
28, 1998 as a closed-end, non-diversified management investment company and has
had no operations other than the sale to Fund Asset Management, L.P. (the
"Investment Adviser") of an aggregate of 6,667 shares of Common Stock for
$100,005 on February 18, 1999. The General Partner of the Investment Adviser is
an indirectly wholly-owned subsidiary of Merrill Lynch & Co., Inc.     
   
  The Investment Adviser, on behalf of the Fund, will incur organization costs
estimated at $11,250. Direct costs relating to the public offering of the
Fund's shares will be charged to capital at the time of issuance of shares.
    
Note 2. Management Arrangements
   
  The Fund has engaged the Investment Adviser to provide investment advisory
and management services to the Fund. The Investment Adviser will receive a
monthly fee for advisory services, at the annual rate of 0.55 of 1% of the
average weekly net assets of the Fund, including any proceeds from the issuance
of Preferred Stock. The Investment Adviser or an affiliate will pay Merrill
Lynch, Pierce, Fenner & Smith Incorporated a commission in the amount of 2.00%
of the price to the public in connection with the initial public offering of
the Fund's Common Stock.     
 
Note 3. Federal Income Taxes
 
  The Fund intends to qualify as a "regulated investment company" and as such
(and by complying with the applicable provisions of the Internal Revenue Code
of 1986, as amended) will not be subject to Federal income tax on taxable
income (including realized capital gains) that is distributed to shareholders.
 
                                       45
<PAGE>
 
                                   APPENDIX I
 
                           RATINGS OF MUNICIPAL BONDS
 
Description of Moody's Investors Service, Inc.'s ("Moody's") Municipal Bond
Ratings
 
Aaa  Bonds which are rated Aaa are judged to be of the best quality. They
     carry the smallest degree of investment risk and are generally
     referred to as "gilt edge." Interest payments are protected by a large
     or by an exceptionally stable margin and principal is secure. While
     the various protective elements are likely to change, such changes as
     can be visualized are most unlikely to impair the fundamentally strong
     position of such issues.
 
Aa   Bonds which are rated Aa are judged to be of high quality by all
     standards. Together with the Aaa group they comprise what are
     generally known as high grade bonds. They are rated lower than the
     best bonds because margins of protection may not be as large as in Aaa
     securities or fluctuation of protective elements may be of greater
     amplitude or there may be other elements present which make the long-
     term risks appear somewhat larger than in Aaa securities.
 
A    Bonds which are rated A possess many favorable investment attributes
     and are to be considered as upper medium grade obligations. Factors
     giving security to principal and interest are considered adequate, but
     elements may be present which suggest a susceptibility to impairment
     sometime in the future.
 
Baa  Bonds which are rated Baa are considered as medium grade obligations,
     i.e., they are neither highly protected nor poorly secured. Interest
     payments and principal security appear adequate for the present, but
     certain protective elements may be lacking or may be
     characteristically unreliable over any great length of time. Such
     bonds lack outstanding investment characteristics and in fact have
     speculative characteristics as well.
 
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 the
     desirable investment. Assurance of interest and principal payments or
     of maintenance of other terms of the contract over any long period of
     time may be small.
   
Caa  Bonds which are rated Caa are of poor standing. Such issues may be in
     default or there may be present elements of danger with respect to
     principal or interest.
 
Ca   Bonds which are rated Ca represent obligations which are speculative
     in a high degree. Such issues are often in default or have other
     marked shortcomings.
  
C    Bonds which are rated C are the lowest rated class of bonds and issues
     so rated can be regarded as having extremely poor prospects of ever
     attaining any real investment standing.
 
  Note: Those bonds in the Aa, A, Baa, Ba and B groups which Moody's believes
possess the strongest investment attributes are designated by the symbols Aa1,
A1, Baa1, Ba1 and B1.
 
                                       46
<PAGE>
 
  Short-term Notes: The three ratings of Moody's for short-term notes are MIG
1/VMIG 1, MIG 2/VMIG 2, and MIG 3/VMIG 3; MIG 1/VMIG 1 denotes "best quality,
enjoying strong protection from established cash flows"; MIG 2/VMIG 2 denotes
"high quality" with "ample margins of protection"; MIG 3/VMIG 3 instruments are
of "favorable quality . . . but . . . lacking the undeniable strength of the
preceding grades".
 
Description of Moody's Commercial Paper Ratings
 
  Moody's Commercial Paper ratings are opinions of the ability of issuers to
repay punctually promissory obligations not having an original maturity in
excess of nine months. Moody's employs the following three designations, all
judged to be investment grade, to indicate the relative repayment capacity of
rated issuers:
 
  Issuers rated Prime-1 (or supporting institutions) have a superior ability
for repayment of short-term promissory obligations. Prime-1 repayment ability
will often be evidenced by many of the following characteristics: leading
market positions in well established industries; high rates of return on funds
employed; conservative capitalization structures with moderate reliance on debt
and ample asset protection; broad margins in earning coverage of fixed
financial charges and high internal cash generation; and well established
access to a range of financial markets and assured sources of alternate
liquidity.
 
  Issuers rated Prime-2 (or supporting institutions) have a strong ability for
repayment of short-term promissory obligations. This will normally be evidenced
by many of the characteristics cited above but to a lesser degree. Earnings
trends and coverage ratios, while sound, may be more subject to variation.
Capitalization characteristics, while still appropriate, may be more affected
by external conditions. Ample alternate liquidity is maintained.
 
  Issuers rated Prime-3 (or supporting institutions) have an acceptable ability
for repayment of short-term promissory obligations. The effects of industry
characteristics and market composition may be more pronounced. Variability in
earnings and profitability may result in changes to the level of debt
protection measurements and may require relatively high financial leverage.
Adequate alternate liquidity is maintained.
 
  Issuers rated Not Prime do not fall within any of the Prime rating
categories.
 
Description of Standard & Poor's, a Division of The McGraw-Hill Companies, Inc.
("Standard & Poor's"), Municipal Debt Ratings
 
  A Standard & Poor's municipal debt rating is a current opinion of the
creditworthiness of an obligor with respect to a specific financial obligation,
a specific class of financial obligations or a specific program. It takes into
consideration the creditworthiness of guarantors, insurers, or other forms of
credit enhancement on the obligation.
 
  The debt rating is not a recommendation to purchase, sell or hold a financial
obligation, inasmuch as it does not comment as to market price or suitability
for a particular investor.
 
  The ratings are based on current information furnished by the obligors or
obtained by Standard & Poor's from other sources Standard & Poor's considers
reliable. Standard & Poor's does not perform an audit in connection with any
rating and may, on occasion, rely on unaudited financial information. The
ratings may be changed, suspended, or withdrawn as a result of changes in, or
unavailability of, such information, or based on circumstances.
 
                                       47
<PAGE>
 
  The ratings are based, in varying degrees, on the following considerations:
 
    I. Likelihood of payment--capacity and willingness of the obligor as to
  the timely payment of interest and repayment of principal in accordance
  with the terms of the obligation;
 
    II. Nature of and provisions of the obligation;
 
    III. Protection afforded to, and relative position of, the obligation in
  the event of bankruptcy, reorganization or other arrangement under the laws
  of bankruptcy and other laws affecting creditors' rights.
 
AAA  Debt rated "AAA" has the highest rating assigned by Standard & Poor's.
     Capacity to meet its financial commitment on the obligation is
     extremely strong.
 
AA   Debt rated "AA" differs from the highest rated issues only in small
     degree. The Obligor's capacity to meet its financial commitment on the
     obligation is very strong.
 
A    Debt rated "A" is somewhat more susceptible to the adverse effects of
     changes in circumstances and economic conditions than debt in higher-
     rated categories. However, the obligor's capacity to meet its
     financial commitment on the obligation is still strong.
 
BBB  Debt rated "BBB" exhibits adequate protection parameters. However,
     adverse economic conditions or changing circumstances are more likely
     to lead to a weakened capacity of the obligor to meet its financial
     commitment on the obligation.
 
BB   Debt rated "BB," "B," "CCC," "CC" and "C" are regarded as having
B    significant speculative characteristics. "BB" indicates the least
CCC  degree of speculation and "C" the highest degree of speculation. While
CC   such debt will likely have some quality and protective
C    characteristics, these may be outweighed by large uncertainties or
     major risk exposures to adverse conditions.
 
D    Debt rated "D" is in payment default. The "D" rating category is used
     when payments on an obligation are not made on the date due even if
     the applicable grace period has not expired, unless Standard & Poor's
     believes that such payments will be made during such grace period. The
     "D" rating also will be used upon the filing of a bankruptcy petition
     or the taking of similar action if payments on an obligation are
     jeopardized.
 
  Plus (+) or Minus (-): The ratings from "AA" to "CCC" may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.
 
Description of Standard & Poor's Commercial Paper Ratings
 
  A Standard & Poor's commercial paper rating is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more
than 365 days. Ratings are graded into several categories, ranging from "A-1"
for the highest-quality obligations to "D" for the lowest. These categories are
as follows:
   
A-1  This designation indicates that the degree of safety regarding timely
     payment is strong. Those issues determined to possess extremely strong
     safety characteristics are denoted with a plus sign (+) designation.
   
A-2  Capacity for timely payment on issues with this designation is
     satisfactory. However, the relative degree of safety is not as high as
     for issues designated "A-1."
 
                                       48
<PAGE>
 

A-3  Issues carrying this designation have an adequate capacity for timely
     payment. They are, however, more vulnerable to the adverse effects of
     changes in circumstances than obligations carrying the higher
     designations.
 
B    Issues rated "B" are regarded as having only speculative capacity for
     timely payment.
 
C    This rating is assigned to short-term debt obligations with a doubtful
     capacity for payment.
 
D    Debt rated "D" is in payment default. The "D" rating category is used
     when interest payments or principal payments are not made on the date
     due, even if the applicable grace period has not expired unless
     Standard & Poor's believes that such payments will be made during such
     grace period.
 
  A commercial paper rating is not a recommendation to purchase or sell a
security. The ratings are based on current information furnished to Standard &
Poor's by the issuer or obtained by Standard & Poor's from other sources it
considers reliable. The ratings may be changed, suspended, or withdrawn as a
result of changes in, or unavailability of, such information.
 
  A Standard & Poor's note rating reflects the liquidity factors and market
access risks unique to notes. Notes due in three years or less will likely
receive a note rating. Notes maturing beyond three years will most likely
receive a long-term debt rating. The following criteria will be used in making
that assessment.
 
  --Amortization schedule--the larger the final maturity relative to other
   maturities, the more likely it will be treated as a note.
 
  --Source of payment--the more dependent the issue is on the market for its
   refinancing, the more likely it will be treated as a note.
 
  Note rating symbols are as follows:
 
SP-1 Strong capacity to pay principal and interest. An issue determined to
     possess a very strong capacity to pay debt service is given a plus (+)
     designation.
 
SP-2 Satisfactory capacity to pay principal and interest with some
     vulnerability to adverse financial and economic changes over the term of
     the notes.
 
SP-3 Speculative capacity to pay principal and interest.

Description of Fitch IBCA, Inc.'s ("Fitch") Investment Grade Bond Ratings
 
  Fitch investment grade bond ratings provide a guide to investors in
determining the credit risk associated with a particular security. The rating
represents Fitch's assessment of the issuer's ability to meet the obligations
of a specific debt issue or class of debt in a timely manner.
 
  The rating takes into consideration special features of the issue, its
relationship to other obligations of the issuer, the current and prospective
financial condition and operating performance of the issuer and any guarantor,
as well as the economic and political environment that might affect the
issuer's future financial strength and credit quality.
 
  Fitch ratings do not reflect any credit enhancement that may be provided by
insurance policies or financial guarantees unless otherwise indicated.
 
 
                                       49
<PAGE>
 
  Bonds carrying the same rating are of similar but not necessarily identical
credit quality since the rating categories do not fully reflect small
differences in the degrees of credit risk.
 
  Fitch ratings are not recommendations to buy, sell, or hold any security.
Ratings do not comment on the adequacy of market price, the suitability of any
security for a particular investor, or the tax-exempt nature or taxability of
payments made in respect of any security.
 
  Fitch ratings are based on information obtained from issuers, other obligors,
underwriters, their experts, and other sources Fitch believes to be reliable.
Fitch does not audit or verify the truth or accuracy of such information.
Ratings may be changed, suspended, or withdrawn as a result of changes in, or
the unavailability of, information or for other reasons.
 
AAA Bonds considered to be investment grade and of the highest credit
    quality. The obligor has an exceptionally strong ability to pay
    interest and repay principal, which is unlikely to be affected by
    reasonably foreseeable events.
 
AA  Bonds considered to be investment grade and of very high credit
    quality. The obligor's ability to pay interest and repay principal is
    very strong, although not quite as strong as bonds rated "AAA." Because
    bonds rated in the "AAA" and "AA" categories are not significantly
    vulnerable to foreseeable future developments, short-term debt of these
    issuers is generally rated "F-1+."
 
A   Bonds considered to be investment grade and of high credit quality. The
    obligor's ability to pay interest and repay principal is considered to
    be strong, but may be more vulnerable to adverse changes in economic
    conditions and circumstances than bonds with higher ratings.
 
BBB Bonds considered to be investment grade and of satisfactory-credit
    quality. The obligor's ability to pay interest and repay principal is
    considered to be adequate. Adverse changes in economic conditions and
    circumstances, however, are more likely to have adverse impact on these
    bonds, and therefore impair timely payment. The likelihood that the
    ratings of these bonds will fall below investment grade is higher than
    for bonds with higher ratings.
 
  Plus (+) or Minus (-): Plus and minus signs are used with a rating symbol to
indicate the relative position of a credit within the rating category. Plus and
minus signs, however, are not used in the "AAA" category.
   
NR           Indicates that Fitch does not rate the specific issue.
 

Conditional  A conditional rating is premised on the successful completion of
             a project or the occurrence of a specific event.
 

Suspended    A rating is suspended when Fitch deems the amount of information
             available from the issuer to be inadequate for rating purposes.
 

Withdrawn    A rating will be withdrawn when an issue matures or is called or
             refinanced and, at Fitch's discretion, when an issuer fails to
             furnish proper and timely information.
 
                                       50
<PAGE>
 
FitchAlert
             Ratings are placed on FitchAlert to notify investors of an
             occurrence that is likely to result in a rating change and the
             likely direction of such change. These are designated as
             "Positive," indicating a potential upgrade, "Negative," for
             potential downgrade, or "Evolving," where ratings may be raised
             or lowered. FitchAlert is relatively short-term, and should be
             resolved within 12 months.
 
  Ratings Outlook: An outlook is used to describe the most likely direction of
any rating change over the intermediate term. It is described as "Positive" or
"Negative." The absence of a designation indicates a stable outlook.
 
Description of Fitch's Speculative Grade Bond Ratings
 
  Fitch speculative grade bond ratings provide a guide to investors in
determining the credit risk associated with a particular security. The ratings
("BB" to "C") represent Fitch's assessment of the likelihood of timely payment
of principal and interest in accordance with the terms of obligation for bond
issues not in default. For defaulted bonds, the rating ("DDD" to "D") is an
assessment of the ultimate recovery value through reorganization or
liquidation.
 
  The rating takes into consideration special features of the issue, its
relationship to other obligations of the issuer, the current and prospective
financial condition and operating performance of the issuer and any guarantor,
as well as the economic and political environment that might affect the
issuer's future financial strength.
 
  Bonds that have the rating are of similar but not necessarily identical
credit quality since rating categories cannot fully reflect the differences in
degrees of credit risk.
 
BB           Bonds are considered speculative. The obligor's ability to pay
             interest and repay principal may be affected over time by adverse
             economic changes. However, business and financial alternatives
             can be identified which could assist the obligor in satisfying
             its debt service requirements.
 
B            Bonds are considered highly speculative. While bonds in this
             class are currently meeting debt service requirements, the
             probability of continued timely payment of principal and interest
             reflects the obligor's limited margin of safety and the need for
             reasonable business and economic activity throughout the life of
             the issue.
 
CCC          Bonds have certain identifiable characteristics which, if not
             remedied, may lead to default. The ability to meet obligations
             requires an advantageous business and economic environment.
 
CC           Bonds are minimally protected. Default in payment of interest
             and/or principal seems probable over time.
 
C            Bonds are in imminent default in payment of interest or
             principal.
 
DDD          Bonds are in default on interest and/or principal payments. Such
DD           bonds are extremely speculative and should be valued on the basis
D            of their ultimate recovery value in liquidation or reorganization
             of the obligor. "DDD" represents the highest potential for
             recovery on these bonds, and "D" represents the lowest potential
             for recovery.
 
 
                                       51
<PAGE>
 
  Plus (+) or Minus (-): Plus and minus signs are used with a rating symbol to
indicate the relative position of a credit within the rating category. Plus and
minus signs, however, are not used in the "DDD," "DD," or "D" categories.
 
Description of Fitch's Short-Term Ratings
 
  Fitch's short-term ratings apply to debt obligations that are payable on
demand or have original maturities of up to three years, including commercial
paper, certificates of deposit, medium-term notes, and municipal and investment
notes.
 
  The short-term rating places greater emphasis than a long-term rating on the
existence of liquidity necessary to meet the issuer's obligations in a timely
manner.
 
  Fitch short-term ratings are as follows:
 
F-1+         Exceptionally Strong Credit Quality. Issues assigned this rating
             are regarded as having the strongest degree of assurance for
             timely payment.
 
F-1          Very Strong Credit Quality. Issues assigned this rating reflect
             an assurance of timely payment only slightly less in degree than
             issues rated "F-1+."
 
F-2          Good Credit Quality. Issues assigned this rating have a
             satisfactory degree of assurance for timely payment, but the
             margin of safety is not as great as for issues assigned "F-1+"
             and "F-1" ratings.
 
F-3          Fair Credit Quality. Issues assigned this rating have
             characteristics suggesting that the degree of assurance for
             timely payment is adequate; however, near-term adverse changes
             could cause these securities to be rated below investment grade.
 
F-S          Weak Credit Quality. Issues assigned this rating have
             characteristics suggesting a minimal degree of assurance for
             timely payment and are vulnerable to near-term adverse changes in
             financial and economic conditions.
 
D            Default. Issues assigned this rating are in actual or imminent
             payment default.
 
LOC          The symbol "LOC" indicates that the rating is based on a letter
             of credit issued by a commercial bank.
 
                                       52
<PAGE>
 
                                  APPENDIX II
 
                              PORTFOLIO INSURANCE
 
  Set forth below is further information with respect to the insurance policies
(the "Policies") that the Fund may obtain from several insurance companies with
respect to insured Municipal Bonds held by the Fund. The Fund has no obligation
to obtain any such Policies, and the terms of any Policies actually obtained
may vary significantly from the terms discussed below.
 
  In determining eligibility for insurance, insurance companies will apply
their own standards. These standards correspond generally to the standards such
companies normally use in establishing the insurability of new issues of
Municipal Bonds and are not necessarily the criteria that would be used in
regard to the purchase of such bonds by the Fund. The Policies do not insure
(i) municipal securities ineligible for insurance and (ii) municipal securities
no longer owned by the Fund.
 
  The Policies do not guarantee the market value of the insured Municipal Bonds
or the value of the shares of the Fund. In addition, if the provider of an
original issuance insurance policy is unable to meet its obligations under such
policy or if the rating assigned to the insurance claims-paying ability of any
such insurer deteriorates, the insurance company will not have any obligation
to insure any issue held by the Fund that is adversely affected by either of
the above described events. In addition to the payment of premiums, the
Policies may require that the Fund notify the insurance company as to all
Municipal Bonds in the Fund's portfolio and permit the insurance company to
audit their records. The insurance premiums will be payable monthly by the Fund
in accordance with a premium schedule to be furnished by the insurance company
at the time the Policies are issued. Premiums are based upon the amounts
covered and the composition of the portfolio.
   
  The Fund will seek to utilize insurance companies that have insurance claims-
paying ability ratings of AAA from Standard & Poor's ("S&P") or Fitch IBCA,
Inc. ("Fitch") or Aaa from Moody's Investors Service ("Moody's"). There can be
no assurance however, that insurance from insurance carriers meeting these
criteria will be at all times available.     
 
  An S&P insurance claims-paying ability rating is an assessment of an
operating insurance company's financial capacity to meet obligations under an
insurance policy in accordance with the terms. An insurer with an insurance
claims-paying ability rating of AAA has the highest rating assigned by S&P.
Capacity to honor insurance contracts is considered by S&P to be extremely
strong and highly likely to remain so over a long period of time. A Fitch
insurance claims-paying ability rating provides an assessment of an insurance
company's financial strength and, therefore, its ability to pay policy and
contract claims under the terms indicated. An insurer with an insurance claims-
paying ability rating of AAA has the highest rating assigned by Fitch. The
ability to pay claims is adjudged by Fitch to be extremely strong for insurance
companies with this highest rating. In the opinion of Fitch, foreseeable
business and economic risk factors should not have any material adverse impact
on the ability of these insurers to pay claims. In Fitch's opinion,
profitability, overall balance sheet strength, capitalization and liquidity are
all at very secure levels and are unlikely to be affected by potential adverse
underwriting, investment or cyclical events. A Moody's insurance claims-paying
ability rating is an opinion of the ability of an insurance company to repay
punctually senior policyholder obligations and claims. An insurer with an
insurance claims-paying ability rating of Aaa is considered by Moody's to be of
the best quality. In the opinion of Moody's, the policy obligations of an
insurance company with an insurance
 
                                       53
<PAGE>
 
claims-paying ability rating of Aaa carry the smallest degree of credit risk
and, while the financial strength of these companies is likely to change, such
changes as can be visualized are most unlikely to impair the company's
fundamentally strong position.
 
  An insurance claims-paying ability rating of S&P, Fitch or Moody's does not
constitute an opinion on any specific contract in that such an opinion can only
be rendered upon the review of the specific insurance contract. Furthermore, an
insurance claims-paying ability rating does not take into account deductibles,
surrender or cancellation penalties or the timeliness of payment; nor does it
address the ability of a company to meet nonpolicy obligations (i.e., debt
contracts).
 
  The assignment of ratings by S&P, Fitch or Moody's to debt issues that are
fully or partially supported by insurance policies, contracts or guarantees is
a separate process from the determination of claims-paying ability ratings. The
likelihood of a timely flow of funds from the insurer to the trustee for the
bondholders is a key element in the rating determination for such debt issues.
 
                                       54
<PAGE>
 
                                  APPENDIX III
 

                       TAXABLE EQUIVALENT YIELDS FOR 1999

<TABLE>
<CAPTION>
                                          
                                          
      Taxable Income*                             A Tax-Exempt Yield of 
- ----------------------------              --------------------------------------
 Single                      1999 Federal
 Return      Joint Return    Tax Bracket  5.00% 5.50% 6.00% 6.50%  7.00%  7.50%
- ---------  ----------------- ------------ ----- ----- ----- ------ ------ ------
                                                   is equal to a taxable yield of
<S>        <C>               <C>          <C>   <C>   <C>   <C>    <C>    <C>    <C>
$ 25,751-
 $ 62,450  $ 43,051-$104,050    28.00%    6.94% 7.64% 8.33%  9.03%  9.72% 10.42%
$ 62,451-
 $130,250  $104,051-$158,550    31.00%    7.25% 7.97% 8.70%  9.42% 10.14% 10.87%
$130,251-
 $283,150  $158,551-$283,150    36.00%    7.81% 8.59% 9.38% 10.16% 10.94% 11.72%
Over
 $283,150  Over $283,150        39.60%    8.28% 9.11% 9.93% 10.76% 11.59% 12.42%
</TABLE>
 
 
- --------
* An investor's marginal tax rates may exceed the rates shown in the above
  table due to the reduction, or possible elimination, of the personal
  exemption deduction for high-income taxpayers and an overall limit on
  itemized deductions. Income also may be subject to certain state and local
  taxes. For investors who pay alternative minimum tax, tax-exempt yields may
  be equivalent to lower taxable yields than those shown above. The tax rates
  shown above do not apply to corporate taxpayers. The tax characteristics of
  the Fund are described more fully elsewhere in this Prospectus. Consult your
  tax adviser for further details. This chart is for illustrative purposes only
  and cannot be taken as an indication of anticipated Fund performance.
 
                                       55
<PAGE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
   
  Through and including May 24, 1999 (the 90th day after the date of this
prospectus), all dealers effecting transactions in these securities, whether or
not participating in this offering, may be required to deliver a prospectus.
This is in addition to the dealers' obligation to deliver a prospectus when
acting underwriters and with respect to their unsold allotments or
subscriptions.     
                                
                             9,600,000 Shares     
 
                       MuniHoldings Insured Fund II, Inc.
 
                                  Common Stock
 
                               ----------------
 
                                   PROSPECTUS
 
                               ----------------
 
                              Merrill Lynch & Co.
                                
                             February 23, 1999     
                                                               
                                                            CODE 19053-0299     
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                                     PART C
 
                               OTHER INFORMATION
 
Item 24. Financial Statements and Exhibits.
 
  (1) Financial Statements
 
    Report of Independent Auditors
       
    Statement of Assets, Liabilities and Capital as of February 18, 1999
           
    Notes to Statement of Assets, Liabilities and Capital as of February 18,
    1999     
 
  (2) Exhibits:
 
<TABLE>   
<CAPTION>
     Exhibit
     Number  Description
     ------- -----------
     <C>     <S>
     (a)     --Articles of Incorporation of the Fund(a)
     (b)     --By-Laws of the Fund(a)
     (c)     --Not applicable
     (d)(1)  --Portions of the Articles of Incorporation and By-Laws of the
              Fund defining the rights of holders of shares of common stock of
              the Fund(c)
     (d)(2)  --Form of specimen certificate for shares of common stock of the
              Fund(b)
     (e)     --Form of Dividend Reinvestment Plan(b)
     (f)     --Not applicable
     (g)     --Form of Investment Advisory Agreement between the Fund and Fund
              Asset Management, L.P.(b)
     (h)(1)  --Form of Purchase Agreement between the Fund and Merrill Lynch,
              Pierce, Fenner & Smith Incorporated(b)
     (h)(2)  --Merrill Lynch Standard Dealer Agreement(b)
     (i)     --Not applicable
     (j)     --Form of Custodian Contract between the Fund and State Street
              Bank and Trust Company(b)
     (k)     --Form of Registrar, Transfer Agency and Service Agreement between
              the Fund and State Street Bank and Trust Company(b)
     (l)     --Opinion and Consent of Brown & Wood LLP
     (m)     --Not applicable
     (n)     --Consent of Ernst & Young LLP, independent auditors for the Fund
     (o)     --Not applicable
     (p)     --Certificate of Fund Asset Management, L.P.
     (q)     --Not applicable
     (r)     --Not applicable
</TABLE>    
- --------
   
(a) Filed on January 6, 1999 as an Exhibit to the Registrant's Registration
    Statement on Form N-2 (File No. 333-70183).     
   
(b) Filed on January 19, 1999 as an Exhibit to Pre-Effective Amendment No. 1 to
    the Registrant's Registration Statement on Form N-2 (File No. 333-70183).
           
(c) Reference is made to Article V, Article VI (sections 2, 3, 4, 5 and 6),
    Article VII, Article VIII, Article X, Article XI, Article XII and Article
    XIII of the Registrant's Articles of Incorporation, filed as Exhibit (a) to
    this Registration Statement; and to Article II, Article III (sections 1, 2,
    3, 5 and 17), Article VI, Article VII, Article XII, Article XIII and
    Article XIV of the Registrant's By-Laws, filed as Exhibit (b) to this
    Registration Statement.     
       
                                      C-1
<PAGE>
 
Item 25. Marketing Arrangements.
 
  See Exhibits (h)(1) and (2).
 
Item 26. Other Expenses of Issuance and Distribution.
 
  The following table sets forth the estimated expenses to be incurred in
connection with the offering described in this Registration Statement:
 
<TABLE>   
   <S>                                                                 <C>
   Registration fees.................................................. $ 46,037
   New York Stock Exchange listing fee................................  109,100
   Printing (other than stock certificates)...........................   35,000
   Engraving and printing stock certificates..........................   20,000
   Legal fees and expenses............................................   40,000
   Accounting fees and expenses.......................................    7,000
   NASD fees..........................................................   17,060
   Miscellaneous......................................................      803
                                                                       --------
     Total............................................................ $275,000
                                                                       ========
</TABLE>    
 
Item 27. Persons Controlled by or Under Common Control with Registrant.
 
  The information in the prospectus under the captions "Investment Advisory and
Management Arrangements" and "Description of Capital Stock--Common Stock" and
in Note 1 to the Statement of Assets, Liabilities and Capital is incorporated
herein by reference.
 
Item 28. Number of Holders of Securities.
 
  There will be one record holder of the Common Stock, par value $0.10 per
share, as of the effective date of this Registration Statement.
 
Item 29. Indemnification.
 
  Section 2-418 of the General Corporation Law of the State of Maryland,
Article VI of the Registrant's Articles of Incorporation, filed as Exhibit
(a)(1) to this Registration Statement, Article VI of the Registrant's By-Laws,
filed as Exhibit (b) to this Registration Statement, and the Investment
Advisory Agreement, a form of which is filed as Exhibit (g)(1) to this
Registration Statement, provide for indemnification.
 
  Insofar as indemnification for liabilities arising under the Securities Act
of 1933, as amended (the "1933 Act") may be provided to directors, officers and
controlling persons of the Fund, pursuant to the foregoing provisions or
otherwise, the Fund has been advised that in the opinion of the Securities and
Exchange Commission, such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the Fund of
expenses incurred or paid by a director, officer or controlling person of the
Fund in connection with any successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Fund will, unless in the
opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.
 
  Reference is made to Section Six of the Purchase Agreement, a form of which
is filed as Exhibit (h)(1) hereto, for provisions relating to the
indemnification of the underwriter.
 
                                      C-2
<PAGE>
 
Item 30. Business and Other Connections of the Investment Adviser.
   
  Fund Asset Management, L.P. (the "Investment Adviser"), an affiliate of MLAM
acts as 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, 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 Corporate High
Yield 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
for the following closed-end registered investment companies: Apex Municipal
Fund, Inc., Corporate High Yield Fund, Inc., Corporate High Yield Fund II,
Inc., Corporate High Yield Fund III, Inc., Debt Strategies Fund, Inc., Debt
Strategies Fund II, Inc., Debt Strategies Fund III, Inc., Income Opportunities
Fund 1999, Inc., Income Opportunities Fund 2000, Inc., Merrill Lynch Municipal
Strategy Fund, Inc., MuniAssets Fund, Inc., MuniEnhanced Fund, Inc.,
MuniHoldings Fund, Inc., MuniHoldings Fund II, Inc., MuniHoldings California
Insured Fund, Inc., MuniHoldings California Insured Fund II, Inc., MuniHoldings
California Insured Fund III, Inc., MuniHoldings California Insured Fund IV,
Inc., MuniHoldings Florida Insured Fund, MuniHoldings Florida Insured Fund II,
MuniHoldings Florida Insured Fund III, MuniHoldings Florida Insured Fund IV,
MuniHoldings Insured Fund, Inc., MuniHoldings Insured Fund II, Inc.,
MuniHoldings Michigan Insured Fund, Inc., MuniHoldings New Jersey Insured Fund,
Inc., MuniHoldings New Jersey Insured Fund II, Inc., MuniHoldings New Jersey
Insured Fund III, Inc., MuniHoldings New York Fund, Inc., MuniHoldings New York
Insured Fund, Inc., MuniHoldings New York Insured Fund II, Inc., MuniHoldings
New York Insured Fund III, Inc., MuniHoldings Pennsylvania Insured Fund,
MuniInsured Fund, Inc., MuniVest Florida Fund, MuniVest Fund, Inc., MuniVest
Fund II, Inc., MuniVest Michigan Insured Fund, Inc., MuniVest New Jersey Fund,
Inc., MuniVest Pennsylvania Insured Fund, 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., and Worldwide DollarVest Fund, Inc.
    
  Merrill Lynch Asset Management, L.P. ("MLAM"), an affiliate of the Investment
Adviser, 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 Convertible Fund, Inc.,
Merrill Lynch Developing Capital Markets Fund, Inc., Merrill Lynch Dragon Fund,
Inc., Merrill Lynch EuroFund, Merrill Lynch Fundamental Growth Fund, Inc.,
Merrill Lynch Global Bond Fund for Investment and Retirement, Merrill Lynch
Global Allocation Fund, Inc., Merrill Lynch Global Growth Fund, Inc., Merrill
Lynch Global Holdings, Merrill Lynch Global Resources Trust, Merrill Lynch
Global SmallCap Fund, Inc., Merrill Lynch Global Technology 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 Equity Portfolio, two investment portfolios of EQ Advisors Trust.
 
                                      C-3
<PAGE>
 
  The address of each of these registered 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-
2665. The address of the Investment Adviser, MLAM, Princeton Services, Inc.
("Princeton Services") and Princeton Administrators, L.P. is also P.O. Box
9011, Princeton, New Jersey 08543-9011. The address of Princeton Funds
Distributor, Inc. ("PFD") and of Merrill Lynch Funds Distributor ("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 & Co.") is World Financial Center, North Tower, 250 Vesey Street, New
York, New York 10281-1201.
 
  Set forth below is a list of each executive officer and partner of the
Investment Adviser indicating each business, profession, vocation or employment
of a substantial nature in which each such person or entity has been engaged
for the past two years for his or her or its own account or in the capacity of
director, officer, employee, partner or trustee. In addition, Mr. Zeikel is
President, Mr. Richard is Treasurer and Mr. Glenn is Executive Vice President
of all or substantially all of the investment companies described in the first
two paragraphs of this Item 30 and also hold the same positions with all or
substantially all of the investment companies advised by MLAM as they do with
those advised by the Investment Adviser. Messrs. Giordano, Harvey, Kirstein and
Monagle are officers of one or more of such companies.
 
<TABLE>   
<CAPTION>
                        Positions with            Other Substantial Business, Profession,
       Name           Investment Adviser                  Vocation or Employment
       ----           ------------------          ---------------------------------------
 <C>               <C>                      <S>
 ML & Co. .......  Limited Partner          Financial Services Holding Company; Limited
                                            Partner of FAM
 Princeton         
  Services.......  General Partner          General Partner of MLAM 
 Arthur Zeikel...  Chairman                 Chairman of MLAM; President of the Investment
                                            Adviser and MLAM from 1977 to 1997; Chairman and
                                            Director of Princeton Services; President of
                                            Princeton Services from 1993 to 1997; Executive
                                            Vice President of ML & Co.
 Jeffrey M. Peek.  President                President of MLAM; President and Director of
                                            Princeton Services; Executive Vice President of ML
                                            & Co.; Managing Director and Co-Head of the
                                            Investment Banking Division of Merrill Lynch in
                                            1997; Senior Vice President and Director of the
                                            Global Securities and Economics Division of
                                            Merrill Lynch from 1995 to 1997.
 Terry K. Glenn..  Executive Vice President Executive Vice President of MLAM; Executive Vice
                                            President and Director of Princeton Services;
                                            President and Director of PFD; Director of
                                            Financial Data Services, Inc.; President of
                                            Princeton Administrators, L.P.
 Donald C. Burke.  Senior Vice President    Senior Vice President, Treasurer and Director of
                    and Treasurer           Taxation of MLAM; Senior Vice President and
                                            Treasurer of Princeton Services; Vice President of
                                            PFD; First Vice President of MLAM from 1997 to
                                            1999; Vice President of MLAM from 1990 to 1997.
 Michael G.        Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Clark..........                           President of Princeton Services; Director and
                                            Treasurer of PFD; First Vice President of MLAM
                                            from 1997 to 1999; Vice President of MLAM from
                                            1996-1997.
 Mark A. DeSario.  Senior Vice President    Senior Vice President MLAM; Senior Vice President
                                            of Princeton Services
 Linda L.          Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Federici.......                           President of Princeton Services
 Vincent R.        Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Giordano.......                           President of Princeton Services
 Elizabeth A.      Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Griffin........                           President of Princeton Services
 Norman R.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Harvey.........                           President of Princeton Services
 Michael J.        Senior Vice President,   Senior Vice President, General Counsel and
  Hennewinkel....   General Counsel         Secretary of MLAM; Senior Vice President of
                    and Secretary           Princeton Services
 Philip L.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Kirstein.......                           President, Director and Secretary of Princeton
                                            Services
 Ronald M. Kloss.  Senior Vice President    Senior Vice President of MLAM; Senior Vice
                                            President of Princeton Services
 Debra W.          Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Landsman-Yaros.                           President of Princeton Services; Vice President of
                                            PFD
 Stephen M. M.     Senior Vice President    Executive Vice President of Princeton
  Miller.........                           Administrators, L.P.; Senior Vice President of
                                            Princeton Services
 Joseph T.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Monagle, Jr. ..                           President of Princeton Services
 Brian A.          Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Murdoch........                           President of Princeton Services
 Gregory D. Upah.  Senior Vice President    Senior Vice President of MLAM; Senior Vice
                                            President of Princeton Services
 Ronald L.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Welburn........                           President of Princeton Services
</TABLE>    
 
                                      C-4
<PAGE>
 
Item 31. Location of Account and Records.
 
  All accounts, books and other documents required to be maintained by Section
31(a) of the Investment Company Act of 1940, as amended, and the Rules
promulgated thereunder are maintained at the offices of the Registrant (800
Scudders Mill Road, Plainsboro, New Jersey 08536), its investment adviser (800
Scudders Mill Road, Plainsboro, New Jersey 08536), and its custodian and
transfer agent.
 
Item 32. Management Services.
 
  Not applicable.
 
Item 33. Undertakings.
 
  (a) Registrant undertakes to suspend the offering of the shares of common
stock covered hereby until it amends its prospectus contained herein if (1)
subsequent to the effective date of this Registration Statement, its net asset
value per share of common stock declines more than 10% from its net asset value
per share of common stock as of the effective date of this Registration
Statement, or (2) its net asset value per share of common stock increases to an
amount greater than its net proceeds as stated in the prospectus contained
herein.
 
  (b) Registrant undertakes that:
 
    (1) For purposes of determining any liability under the 1933 Act, the
  information omitted from the form of prospectus filed as part of this
  Registration Statement in reliance upon Rule 430A and contained in the form
  of prospectus filed by the registrant pursuant to Rule 497(h) under the
  1933 Act shall be deemed to be part of this Registration Statement as of
  the time it was declared effective.
 
    (2) For the purpose of determining any liability under the 1933 Act, each
  post-effective amendment that contains a form of prospectus shall be deemed
  to be a new registration statement relating to the securities offered
  therein, and the offering of such securities at that time shall be deemed
  to be the initial bona fide offering thereof.
 
                                      C-5
<PAGE>
 
                                   SIGNATURES
   
  Pursuant to the requirements of the Securities Act of 1933 and the Investment
Company Act of 1940, the Registrant has duly caused this 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 23rd day of
February, 1999.     
 
                                          MuniHoldings Insured Fund II, Inc.
                                               (Registrant)
                                                    
                                          By     /s/ Donald C. Burke     
                                            -----------------------------------
                                                
                                             (Donald C. Burke, Vice President)
                                                               
  Each person whose signature appears below hereby authorizes Arthur Zeikel,
Terry K. Glenn or Donald C. Burke, or any of them, as attorney-in-fact, to sign
on his behalf, individually and in each capacity stated below, any amendment to
this Registration Statement (including post-effective amendments) and to file
the same, with all exhibits thereto, with the Securities and Exchange
Commission.
 
  Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed below by the following person in the capacities and
on the date indicated.
 
<TABLE>     
<S>  <C>
             Signatures                         Title
                                                                     Date
 
           Arthur Zeikel*               President (Principal
- -------------------------------------    Executive Officer)
           (Arthur Zeikel)               and Director
 
         /s/ Donald C. Burke            Vice President and       February 23,
- -------------------------------------    Treasurer                   1999
          (Donald C. Burke)              (Principal
                                         Financial and
                                         Accounting Officer)
 
             Joe Grills*                Secretary and
- -------------------------------------    Director
            (Joe Grills)
 
            Walter Mintz*               Director
- -------------------------------------
           (Walter Mintz)
 
          Melvin R. Seiden*             Director
- -------------------------------------
         (Melvin R. Seiden)
 
       Robert S. Salomon, Jr.*          Director
- -------------------------------------
      (Robert S. Salomon, Jr.)
 
        Stephen B. Swensrud*            Director
- -------------------------------------
        (Stephen B. Swensrud)
 
         /s/ Donald C. Burke                                     February 23,
*By:                                                                 1999
  ----------------------------------
 (Donald C. Burke, Attorney-in-fact)
</TABLE>      
 
                                      C-6
<PAGE>
 
                                 EXHIBIT INDEX
 
 Exhibit Number
 --------------
 
<TABLE>
 <C>   <S>
 (l)   --Opinion and Consent of Brown & Wood LLP
 (n)   --Consent of Ernst & Young LLP
 (p)   --Certificate of Fund Asset Management, L.P.
</TABLE>

<PAGE>


                               Brown & Wood LLP
                            One World Trade Center
                            New York, NY 10048-0057
                            Telephone: 212-839-5300


 
                                                               February 23, 1999



MuniHoldings Insured Fund II, Inc.
800 Scudders Mill Road
Plainsboro, New Jersey 08536

Ladies and Gentlemen:


     This opinion is being furnished in connection with the registration by
MuniHoldings Insured Fund II, Inc., a Maryland corporation (the "Fund"), of
shares of common stock, par value $0.10 per share (the "Shares"), under the
Securities Act of 1933, as amended (the "Securities Act"), pursuant to the
Fund's registration statement on Form N-2, as amended (the "Registration
Statement"), under the Securities Act, in the amount set forth under "Amount
Being Registered" on the facing page of the Registration Statement.

     As counsel for the Fund, we are familiar with the proceedings taken by it
in connection with the authorization, issuance and sale of the Shares.  In
addition, we have examined and are familiar with the Articles of Incorporation
Declaration of Trust of the Fund, as amended, the By-laws of the Fund, and
such other documents as we have deemed relevant to the matters referred to in
this opinion.

     Based upon the foregoing, we are of the opinion that the Shares, upon
issuance and sale in the manner referred to in the Registration Statement, will
be legally issued, fully paid and non-assessable shares of common stock of the
Fund.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the use of our name in the Prospectus constituting
a part thereof.

                                        Very truly yours,

                                        /s/ Brown & Wood LLP


<PAGE>
 
                                                                     EXHIBIT (n)


                        CONSENT OF INDEPENDENT AUDITORS

We consent to the reference to our firm under the caption "Experts" and to the
use of our report dated February 19, 1999, in this Registration Statement on
Form N-2 under the Securities Act of 1933 (File No. 333-70183) and under the
Investment Company Act of 1940 (File No. 811-09191) and related Prospectus of
MuniHoldings Insured Fund II, Inc. for the registration of shares of its Common
Stock.


                                                ERNST & YOUNG LLP

Princeton, New Jersey
February 19, 1999


<PAGE>
 
                                                                       EXHIBIT P

                    CERTIFICATE OF THE SOLE STOCKHOLDER OF
                      MUNIHOLDINGS INSURED FUND II, INC.

     Fund Asset Management, L.P. ("FAM"), the holder of 6,667 shares of common
stock, par value $0.10 per share, of MuniHoldings Insured Fund II, Inc. (the
"Fund"), a Maryland corporation, does hereby confirm to the Fund its
representation that it purchased such shares for investment purposes, with no
present intention of redeeming or reselling any portion thereof, and further
agrees that if it redeems (by tender offer or otherwise) any portion of such
shares prior to the amortization of the Fund's organizational expenses, the
proceeds thereof will be reduced by the proportionate amount of unamortized
organizational expenses which the number of shares being redeemed bears to the
number of shares initially purchased and outstanding at the time of redemption.
FAM further agrees that, in the event such shares are sold or otherwise
transferred to any other party, prior to such sale or transfer FAM will obtain
on behalf of the Fund an agreement from such other party to comply with the
foregoing as to the reduction of redemption proceeds and to obtain a similar
agreement from any transferee of such party.

                         FUND ASSET MANAGEMENT, L.P.


                         By: /s/ Robert Harris
                             -----------------
                            Name: Robert Harris
                            Title:  Assistant Secretary

Dated:  February 23, 1999


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