ARCH FUNDS INC
497, 1999-02-11
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<PAGE>   1
                                     [LOGO]



                       THE CONNING MONEY MARKET PORTFOLIO
                                   PROSPECTUS


















                                JANUARY 19, 1999
                         (AS REVISED FEBRUARY 12, 1999)
<PAGE>   2
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                               ----
<S>                                                                                                            <C>
HIGHLIGHTS.......................................................................................................2
INVESTMENT OBJECTIVE, POLICIES AND RISK CONSIDERATIONS...........................................................5
INVESTMENT LIMITATIONS..........................................................................................10
PRICING OF SHARES...............................................................................................11
HOW TO PURCHASE AND REDEEM SHARES...............................................................................11
         Purchase Of Shares.....................................................................................11
         Redemption Of Shares...................................................................................12
         Other Purchase and Redemption Information..............................................................12
YIELDS..........................................................................................................13
DIVIDENDS AND DISTRIBUTIONS.....................................................................................14
TAXES...........................................................................................................14
MANAGEMENT OF THE FUND..........................................................................................15
OTHER INFORMATION CONCERNING THE FUND AND ITS SHARES............................................................19
DESCRIPTION OF SHARES...........................................................................................19
</TABLE>
<PAGE>   3
                         CONNING MONEY MARKET PORTFOLIO
                                       OF
                             THE ARCH FUND(R), INC.

         The Conning Money Market Portfolio (the "Portfolio") is a portfolio of
The ARCH Fund, Inc., an open-end, management investment company. Shares of the
Portfolio are sold through selected broker-dealers and other financial advisers
to individual or institutional customers.

         The CONNING MONEY MARKET PORTFOLIO'S investment objective is to seek
current income with liquidity and stability of principal.

         Mississippi Valley Advisors Inc. (the "Adviser"), an indirect
wholly-owned non-bank subsidiary of Mercantile Bancorporation Inc.
("Mercantile"), acts as investment adviser for the Portfolio. Conning Asset
Management Company ("Conning" or the "Sub-Adviser") serves as sub-adviser.
Mercantile Trust Company National Association (the "Custodian"), an affiliate of
the Adviser, serves as custodian; BISYS Fund Services Ohio, Inc. (the
"Administrator") serves as administrator; and BISYS Fund Services (the
"Distributor") serves as sponsor and distributor.

         This Prospectus sets forth concisely certain information about the
Portfolio that prospective investors should know before investing. Investors
should read this Prospectus and retain it for future reference. Additional
information about the Portfolio, contained in a Statement of Additional
Information dated January 19, 1999 (as revised February 12, 1999), has been
filed with the Securities and Exchange Commission and is incorporated by
reference in its entirety into this Prospectus. Investors may obtain the
Statement of Additional Information without charge by writing the Fund at 3435
Stelzer Road, Columbus, Ohio 43219 or by contacting their broker-dealers or
financial advisers.

         AN INVESTMENT IN THE PORTFOLIO IS NEITHER INSURED NOR GUARANTEED BY THE
U.S. GOVERNMENT. THERE CAN BE NO ASSURANCE THAT THE PORTFOLIO WILL BE ABLE TO
MAINTAIN A STABLE NET ASSET VALUE OF $1.00 PER SHARE.

         Portfolio Shares are not bank deposits, are not federally insured or
guaranteed by the U.S. Government, the Federal Deposit Insurance Corporation,
the Federal Reserve Board or any other governmental agency, and are not the
obligations of or guaranteed or otherwise supported by any bank. An investment
in the Portfolio involves investment risk, including the possible loss of
principal.

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

                 JANUARY 19, 1999 (AS REVISED FEBRUARY 12, 1999)

                                      -1-
<PAGE>   4
                                   HIGHLIGHTS

         The CONNING MONEY MARKET PORTFOLIO (the "Portfolio") is a portfolio of
The ARCH Fund, Inc. (the "Fund"), an open-end, management investment company
(commonly known as a mutual fund) registered under the Investment Company Act of
1940, as amended. Each portfolio of the Fund represents a separate pool of
assets with different investment objectives and policies. For information on the
Portfolio's investment objective and policies, see "Investment Objective,
Policies and Risk Considerations" below. Mississippi Valley Advisors Inc. (the
"Adviser") serves as adviser, Conning Asset Management Company ("Conning" or the
"Sub-Adviser") serves as sub-adviser, Mercantile Trust Company National
Association serves as custodian, BISYS Fund Services Ohio, Inc. serves as
administrator and BISYS Fund Services as sponsor and distributor. For
information on expenses, fee waivers, and services, see "Expense Summary" and
"Management of the Fund."

         The Portfolio's investment objective is to seek current income with
liquidity and stability of principal. There can be no assurance that the
Portfolio will be able to achieve its investment objective. The Portfolio's
assets are invested in U.S. dollar-denominated debt securities with remaining
maturities of 397 days (13 months) or less as defined by the Securities and
Exchange Commission, and the Portfolio's dollar-weighted average portfolio
maturity will not exceed 90 days. All securities acquired by the Portfolio will
be determined by Conning, under the supervision of the Adviser and pursuant to
guidelines approved by the Fund's Board of Directors, to present minimal credit
risks and to be rated in the highest category (or deemed comparable in quality)
at the time of purchase. The Portfolio seeks to maintain a net asset value of
$1.00 per Share. There can be no assurance that the Portfolio will be able to
achieve a stable net asset value on a continuous basis.

         Investors should note that the Portfolio may, subject to its investment
policies and limitations, purchase variable and floating rate instruments,
including funding agreements, enter into repurchase agreements and reverse
repurchase agreements, lend securities, acquire certain U.S. dollar-dominated
instruments of foreign issuers, and make limited investments in illiquid
securities and securities issued by other investment companies. These investment
practices involve investment risks of varying degrees. For example, the absence
of a secondary market for a particular variable or floating rate instrument
could make it difficult for the Portfolio to dispose of an instrument if the
issuer were to default on its payment obligation. Default by a counterparty to a
repurchase agreement could expose the Portfolio to loss because of adverse
market action or possible delay in disposing of the underlying collateral.
Reverse repurchase agreements are subject to the risk that the market value of
the securities sold by the Portfolio will decline below the repurchase price
which the Portfolio is obligated to pay. Foreign securities entail certain
inherent risks, such as future political and economic developments and the
adoption of foreign government restrictions, that might adversely affect payment
of principal and interest. See "Investment Objective, Policies and Risk
Considerations" below and the Statement of Additional Information under
"Investment Objective and Policies."

         Shares of the Portfolio are sold without a sales charge. For
information on purchasing, exchanging or redeeming Shares of the Portfolio, see
"How to Purchase and Redeem Shares" below.

                                      -2-
<PAGE>   5
                                 EXPENSE SUMMARY

         Set forth below is a summary of the Portfolio's operating expenses.
Examples based on the summary are also shown.


<TABLE>
<CAPTION>
ANNUAL PORTFOLIO OPERATING EXPENSES
  (as a percentage of average net assets)
<S>                                                          <C>
Investment Advisory Fees
  (net of fee waivers)(1)............................         .25%
12b-1 Fees...........................................         .00%

Other Expenses (including administration fees, 
  shareholder liaison/administrative support services
  fees and other expenses) (net of fee waivers and
  expenses reimbursements)(2)(3).....................         .75%
                                                              ----

Total Portfolio Operating
  Expenses (net of fee waivers
  and expense reimbursements(3)......................         1.00%
                                                              =====
</TABLE>


- ------------------------
(1)      Without fee waivers, Investment Advisory Fees would be .40%. Such fee
         waivers are voluntary and may be terminated at any time.

(2)      Without fee waivers, administration fees would be .20% and shareholder
         liaison/administrative support services fees would be .75%. Such fee
         waivers are voluntary and may be terminated at any time.

(3)      Without fee waivers and/or expense reimbursements, Other Expenses would
         be 1.03% and Total Portfolio Operating Expenses would be 1.43%. Such
         fee waivers are voluntary and may be terminated at any time.

                                      -3-
<PAGE>   6
<TABLE>
<CAPTION>
EXAMPLE                                                          1 YEAR               3 YEARS
                                                                 ------               -------
<S>                                                              <C>                  <C>
You would pay the following                                       $10                   $32
  expenses on a $1,000 investment,
  assuming (1) a 5% annual return and
  (2) redemption at the end of each
  period:
</TABLE>

         THE FOREGOING SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR RATES OF RETURN. THE PORTFOLIO IS NEW AND ACTUAL EXPENSES AND
RATES OF RETURN MAY BE MORE OR LESS THAN THOSE SHOWN. Information about the
actual performance of the Portfolio will be contained in the Fund's future
annual and semi-annual reports to shareholders which may be obtained, when
available, without charge by contacting the Fund at the address on page 1 of
this Prospectus or your broker-dealer or financial adviser .

         The purpose of the foregoing Table is to assist in understanding the
various costs and expenses that an investor in the Portfolio will bear directly
or indirectly. The information contained in the Table is based on estimated
expenses which the Portfolio expects to incur during the current fiscal year.
For more complete descriptions of the various costs and expenses, see
"Management of the Fund" in this Prospectus and the Statement of Additional
Information. The Table and Example have not been audited by the Fund's
independent auditors and do not reflect any charges that may be imposed by
broker-dealers or financial advisers on their customers.

                                      -4-
<PAGE>   7
             INVESTMENT OBJECTIVE, POLICIES AND RISK CONSIDERATIONS

         Although management will use its best efforts to achieve the investment
objective of the Portfolio, there can be no assurance that it will be able to do
so. The investment objective of the Portfolio may be changed by the Fund's Board
of Directors without shareholder approval, although shareholders will be given
at least 30 days' written notice before any such change occurs. The Portfolio is
a "money market" fund that invests in instruments with remaining maturities of
397 days or less (with certain exceptions) and with a dollar-weighted average
portfolio maturity of 90 days or less, subject to the quality, diversification
and other requirements of Rule 2a-7 under the Investment Company Act of 1940, as
amended (the "1940 Act") and other rules of the Securities and Exchange
Commission (the "SEC").

         The Portfolio's investment objective is to seek current income with
liquidity and stability of principal. In pursuing its investment objective, the
Portfolio invests substantially all of its assets in a broad range of money
market instruments. These instruments include obligations of the U.S.
Government, U.S. dollar-denominated foreign securities, obligations of U.S. and
foreign banks and savings and loan institutions and commercial obligations that
meet the applicable quality requirements described below.

         The Portfolio will purchase only "First Tier Eligible Securities" (as
defined by the SEC) that present minimal credit risks as determined by the
Sub-Adviser under the supervision of the Adviser and pursuant to guidelines
approved by the Fund's Board of Directors. First Tier Eligible Securities
consist of (i) securities that either (a) have short-term debt ratings at the
time of purchase in the highest rating category by at least two unaffiliated
nationally recognized statistical rating organizations ("Rating Agencies") (or
one Rating Agency if the security was rated by only one Rating Agency), or (b)
are issued by issuers with such ratings, and (ii) certain securities that are
unrated (including securities of issuers that have long-term but not short-term
ratings) but are of comparable quality as determined in accordance with
guidelines approved by the Board of Directors. The applicable ratings issued by
Rating Agencies are described in Appendix A to the Statement of Additional
Information. The following descriptions illustrate the types of instruments in
which the Portfolio invests.

         BANKING OBLIGATIONS. The Portfolio may purchase obligations of issuers
in the banking industry, such as certificates of deposit, letters of credit,
bankers' acceptances and time deposits, including U.S. dollar-denominated
instruments issued or supported by the credit of U.S. or foreign banks or
savings institutions having total assets at the time of purchase in excess of $1
billion. The Portfolio may invest in obligations of foreign banks or foreign
branches of U.S. banks in amounts not in excess of 25% of its assets where the
Sub-Adviser deems the instrument to present minimal credit risks. See "Risk
Factors -- Risks Associated with Foreign Securities" below. The Portfolio may
also make interest-bearing savings deposits in commercial and savings banks in
amounts not in excess of 5% of the value of its total assets.

         COMMERCIAL PAPER AND VARIABLE AND FLOATING RATE INSTRUMENTS. The
Portfolio may invest in commercial paper, including asset-backed commercial
paper representing interests in a pool of corporate receivables,
dollar-denominated obligations issued by domestic and foreign bank holding
companies, and corporate bonds that meet the quality and maturity requirements

                                      -5-
<PAGE>   8
described above. The Portfolio may also invest in variable or floating rate
notes that may have a stated maturity in excess of thirteen months but will, in
any event, permit the Portfolio to demand payment of the principal of the
instrument at least once every thirteen months upon no more than 30 days' notice
(unless the instrument is guaranteed by the U.S. Government or an agency or
instrumentality thereof). Such instruments may include variable amount master
demand notes, which are unsecured instruments that permit the indebtedness
thereunder to vary in addition to providing for periodic adjustments in the
interest rate. Unrated variable and floating rate instruments will be determined
by the Sub-Adviser (under the supervision of the Board of Directors) to be of
comparable quality at the time of purchase to First Tier Eligible Securities.
There may be no active secondary market in the instruments, which could make it
difficult for the Portfolio to dispose of an instrument in the event the issuer
were to default on its payment obligation or during periods that the Portfolio
could not exercise its demand rights. The Portfolio could, for these or other
reasons, suffer a loss with respect to such instruments. Variable and floating
rate instruments held by the Portfolio will be subject to the Portfolio's 10%
limitation on illiquid investments when the Portfolio may not demand payment of
the principal amount within seven days and a liquid trading market is absent.

         FUNDING AGREEMENTS. The Portfolio may invest in short-term funding
agreements. A funding agreement is a contract between an issuer and a purchaser
that obligates the issuer to pay a guaranteed rate of interest on a principal
sum deposited by the purchaser. Funding agreements will also guarantee the
return of principal and may guarantee a stream of payments over time. A funding
agreement has a fixed maturity and may have either a fixed rate or a variable or
floating interest rate that is based on an index and guaranteed for a set time
period. Because there is no secondary market for these investments, any funding
agreement purchased by the Portfolio will be regarded as illiquid. Funding
agreements, together with other illiquid securities, will not constitute more
than 10% of the Portfolio's net assets.

         GOVERNMENT OBLIGATIONS. The Portfolio may invest in obligations issued
or guaranteed by the U.S. Government, its agencies and instrumentalities. In
addition, the Portfolio may, when deemed appropriate by the Sub-Adviser, invest
in short-term obligations issued by state and local governmental issuers
("municipal obligations") that meet the quality requirements described above
and, as a result of the Tax Reform Act of 1986, carry yields that are
competitive with those of other types of money market instruments of comparable
quality.

OTHER APPLICABLE POLICIES

         The investment policies described in this Prospectus are policies which
the Portfolio has the ability to utilize. Some of these policies may be employed
on a regular basis; others may not be used at all. Accordingly, reference to any
particular policy, method or technique carries no implication that it will be
utilized or, if it is, that it will be successful.

         U.S. GOVERNMENT OBLIGATIONS. Securities issued or guaranteed by the
U.S. Government, its agencies and instrumentalities have historically involved
little risk of loss of principal if held to maturity. However, due to
fluctuations in interest rates, the market value of such securities may vary
during the period a shareholder owns Shares of the Portfolio. Certain U.S.
Government securities held by the Portfolio may have remaining maturities
exceeding thirteen

                                      -6-
<PAGE>   9
months if such securities provide for adjustments in their interest rates no
less frequently than every thirteen months. Examples of the types of U.S.
Government obligations that may be held by the Portfolio, include, in addition
to U.S. Treasury bonds, notes and bills, the obligations of Federal Home Loan
Banks, Federal Farm Credit Banks, Federal Land Banks, the Federal Housing
Administration, Farmers Home Administration, Export-Import Bank of the United
States, Small Business Administration, Government National Mortgage Association
("GNMA"), Federal National Mortgage Association ("FNMA"), Federal Home Loan
Mortgage Corporation, General Services Administration, Central Bank for
Cooperatives, Federal Intermediate Credit Banks, Resolution Trust Corporation,
and Maritime Administration. Obligations of certain agencies and
instrumentalities of the U.S. Government, such as those of GNMA, are supported
by the full faith and credit of the U.S. Treasury; others, such as those of the
Export-Import Bank of the United States, are supported by the right of the
issuer to borrow from the Treasury; others, such as those of FNMA, are supported
by the discretionary authority of the U.S. Government to purchase the agency's
obligations; still others such as those of the Federal Home Loan Mortgage
Corporation, are supported only by the credit of the instrumentality. There is
no assurance that the U.S. Government would provide financial support to U.S.
Government-sponsored instrumentalities if it were not obligated to do so by law.

         TYPES OF MUNICIPAL OBLIGATIONS. The two principal classifications of
municipal obligations are "general obligation" securities and "revenue"
securities. General obligation securities are secured by the issuer's pledge of
its full faith, credit and taxing power for the payment of principal and
interest. Revenue securities 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 the user of the
facility being financed. Revenue securities include private activity bonds which
are not payable from the unrestricted revenues of the issuer. Consequently, the
credit quality of private activity bonds is usually directly related to the
credit standing of the corporate user of the facility involved. Municipal
obligations may also include "moral obligation" bonds, which are normally issued
by special purpose public authorities. If the issuer of a moral obligation bond
is unable to meet its debt service obligations from current revenues, it may
draw on a reserve fund, the restoration of which is a moral commitment but not a
legal obligation of the state or municipality which created the issuer.

         Municipal obligations include debt obligations issued by governmental
entities to obtain funds for various public purposes, including the construction
of a wide range of public facilities, the refunding of outstanding obligations,
the payment of general operating expenses and the extension of loans to public
institutions and facilities. Private activity bonds issued by or on behalf of
public authorities to finance various privately operated facilities are
considered municipal obligations. Interest on private activity bonds, although
free of regular federal income tax, may be an item of tax preference for
purposes of the federal alternative minimum tax.

         STRIPPED GOVERNMENT SECURITIES. The Portfolio may invest in bills,
notes and bonds (including zero coupon bonds) issued by the U.S. Treasury. In
addition, the Portfolio may also invest in "stripped" U.S. Treasury obligations
offered under the Separate Trading of Registered Interest and Principal
Securities ("STRIPS") program or Coupon Under Bank-Entry Safekeeping ("CUBES")
program or other stripped securities issued directly by agencies or
instrumentalities

                                      -7-
<PAGE>   10
of the U.S. Government. STRIPS and CUBES represent either future interest or
principal payments and are direct obligations of the U.S. Government that clear
through the Federal Reserve System. The Portfolio may also purchase U.S.
Treasury and agency securities that are stripped by brokerage firms and
custodian banks and sold under proprietary names. These stripped securities are
resold in custodial receipt programs with a number of different names (such as
TIGRs and CATS) and are not considered U.S. Government securities for purposes
of the 1940 Act.

         Stripped securities are issued at a discount to their "face value" and
may exhibit greater price volatility than ordinary debt securities because of
the manner in which their principal and interest are returned to investors. The
Sub-Adviser will consider the liquidity needs of the Portfolio when any
investments in zero coupon obligations or other principal-only obligations are
made.

         REPURCHASE AGREEMENTS. The Portfolio may agree to purchase U.S.
Government securities from financial institutions such as banks and
broker-dealers, subject to the seller's agreement to repurchase them at a
mutually agreed-upon date and price ("repurchase agreements"). The Portfolio
will enter into repurchase agreements only with financial institutions such as
banks and broker-dealers that the Sub-Adviser believes to be creditworthy.
During the term of any repurchase agreement, the Sub-Adviser will continue to
monitor the creditworthiness of the seller and will require the seller to
maintain the value of the securities subject to the agreement at not less than
102% of the repurchase price (including accrued interest). Default by a seller
could expose the Portfolio to possible loss because of adverse market action or
possible delay in disposing of the underlying obligations. Because of the
seller's repurchase obligations, the securities subject to repurchase agreements
do not have maturity limitations. Although the Portfolio does not presently
intend to enter into repurchase agreements providing for settlement in more than
seven days, the Portfolio does have the authority to do so subject to its
limitation on the purchase of illiquid securities described below. Repurchase
agreements are considered to be loans under the 1940 Act.

         REVERSE REPURCHASE AGREEMENTS. The Portfolio may borrow funds for
temporary purposes by entering into reverse repurchase agreements in accordance
with the investment limitations described below. Pursuant to such agreements,
the Portfolio would sell portfolio securities to financial institutions such as
banks and broker-dealers and agree to repurchase them at an agreed upon date and
price. Reverse repurchase agreements involve the risk that the market value of
the securities sold by the Portfolio may decline below the repurchase price
which the Portfolio is obligated to pay. Whenever the Portfolio enters into a
reverse repurchase agreement, it will place in a segregated custodial account
cash or other liquid assets in an amount equal to the repurchase price (plus
accrued interest). Reverse repurchase agreements are considered to be borrowings
by the Portfolio under the 1940 Act.

         SECURITIES LENDING. To increase return or offset expenses, the
Portfolio may from time to time, lend its portfolio securities to
broker-dealers, banks or institutional borrowers pursuant to agreements
requiring that the loans be continuously secured by collateral equal at all
times in value to at least the market value of the securities loaned. Collateral
for such loans may include cash, securities of the U.S. Government, or its
agencies or instrumentalities, or an irrevocable

                                      -8-
<PAGE>   11
letter of credit issued by a bank that has at least $1.5 billion in total
assets, or any combination thereof. The collateral must be valued daily and,
should the market value of the loaned securities increase, the borrower must
furnish additional collateral to the Portfolio. By lending its securities, the
Portfolio can increase its income by continuing to receive interest on the
loaned securities as well as by either investing the cash collateral in
short-term instruments or obtaining yield in the form of interest paid by the
borrower when U.S. Government securities are used as collateral. In accordance
with current SEC policies, the Portfolio is currently limiting its securities
lending to 33-1/3% of the value of its total assets (including the value of the
collateral for the loans) at the time of the loan. Loans are subject to
termination by the Portfolio or a borrower at any time.

         SECURITIES OF OTHER INVESTMENT COMPANIES. The Portfolio may invest in
securities issued by other investment companies which invest in securities in
which the Portfolio is permitted to invest and which determine their net asset
value per share based on the amortized cost or penny-rounding method. The
Portfolio may invest in securities of other investment companies within the
limits prescribed by the 1940 Act, which include, subject to certain exceptions,
a prohibition on the Portfolio investing more than 10% of the value of its total
assets in such securities. Investments in other investment companies will cause
the Portfolio (and, indirectly, the Portfolio's shareholders) to bear
proportionately the cost incurred in connection with the operations of such
other investment companies. In addition, investment companies in which the
Portfolio may invest may impose a sales or distribution charge in connection
with the purchase or redemption of their shares as well as other types of
commissions or charges. Such charges will be payable by the Portfolio and,
therefore, will be borne indirectly by its shareholders. See the Statement of
Additional Information under "Investment Objectives and Policies -- Securities
of Other Investment Companies."

         WHEN-ISSUED PURCHASES AND FORWARD COMMITMENTS. The Portfolio may
purchase securities on a "when-issued" basis and may purchase or sell securities
on a "forward commitment" basis. These transactions involve a commitment by the
Portfolio to purchase or sell securities at a stated price and yield with
settlement beyond the normal settlement date. Such transactions permit the
Portfolio to lock-in a price or yield on a security, regardless of future
changes in interest rates. When-issued purchases and forward commitment
transactions involve a risk of loss if the value of the security to be purchased
declines prior to the settlement date, or if the value of the security to be
sold increases prior to the settlement date. The Portfolio does not begin to
earn income on the securities until the settlement date. When the Portfolio
agrees to purchase securities on a when-issued or forward commitment basis, it
will place in a segregated custodial account cash or other liquid assets in an
amount equal to the commitment. The Portfolio expects that these transactions
will not exceed 25% of the value of its total assets (at the time of purchase)
under normal market conditions. The Portfolio does not intend to engage in such
transactions for speculative purposes but only for the purpose of acquiring
portfolio securities.

         FOREIGN SECURITIES. The Portfolio may acquire U.S. dollar-denominated
securities of foreign corporations and certain types of bank instruments issued
or supported by the credit of foreign banks or foreign branches of domestic
banks where the Sub-Adviser deems the investments to present minimal credit
risks. Investments made in foreign securities involve

                                      -9-
<PAGE>   12
certain inherent risks, such as future political and economic developments, the
possible imposition of foreign withholding tax on the interest income payable on
such instruments, the possible establishment of foreign controls, the possible
seizure or nationalization of foreign deposits or assets, or the adoption of
other foreign government restrictions that might adversely affect payment of
interest or principal. In addition, foreign banks and foreign branches of U.S.
banks are subject to less stringent reserve requirements and to different
accounting, auditing, reporting, and recordkeeping standards than those
applicable to domestic branches of U.S. banks.

         ILLIQUID SECURITIES. The Portfolio will not invest more than 10% of the
value of its net assets in illiquid securities. Repurchase agreements that do
not provide for settlement within seven days, time deposits maturing in more
than seven days, and securities that are not registered under the Securities Act
of 1933, as amended (the "1933 Act") but that may be purchased by institutional
buyers pursuant to SEC Rule 144A are subject to the applicable limit (unless the
Sub-Adviser, pursuant to guidelines established by the Board of Directors,
determines that a liquid market exists). The purchase of securities which can be
sold under Rule 144A could have the effect of increasing the level of
illiquidity in the Portfolio to the extent that qualified institutional buyers
become, for a time, uninterested in purchasing these restricted securities.

                             INVESTMENT LIMITATIONS

         The Portfolio's investment policies discussed above are not fundamental
and may be changed by the Fund's Board of Directors without shareholder
approval. However, the Portfolio also has in place certain fundamental
investment limitations, some of which are set forth below, which may be changed
only by a vote of a majority of the outstanding Shares of the Portfolio. Other
investment limitations that also cannot be changed without a vote of
shareholders are contained in the Statement of Additional Information under
"Investment Objective and Policies."

         The Portfolio may not:

                  1. Make loans, except that the Portfolio may purchase or hold
         debt instruments in accordance with its investment objective and
         policies, lend portfolio securities, and enter into repurchase
         agreements with respect to securities (together with any cash
         collateral) that are consistent with the Portfolio's permitted
         investments and that equal at all times at least 100% of the value of
         the repurchase price.

                  2. Borrow money or issue senior securities, except that the
         Portfolio may borrow from banks and the Portfolio may enter into
         reverse repurchase agreements for temporary purposes in amounts up to
         10% of the value of its total assets at the time of such borrowing; or
         mortgage, pledge or hypothecate any assets, except in connection with
         any such borrowing and in amounts not in excess of the lesser of the
         dollar amounts borrowed or 10% of the value of the Portfolio's total
         assets at the time of such borrowing. The Portfolio will not purchase
         securities while its borrowings (including reverse repurchase
         agreements) are outstanding.

                  3. Invest 25% or more of its total assets in one or more
         issuers conducting their principal business activities in the same
         industry, except that the Portfolio may 

                                      -10-
<PAGE>   13
         invest more than 25% of its total assets in either government
         securities, as defined in the 1940 Act, or instruments of domestic
         banks.


                  4. Purchase securities of any one issuer, other than
         obligations of the U.S. Government, its agencies or instrumentalities,
         if immediately after such purchase more than 5% of the value of the
         Portfolio's total assets would be invested in such issuer, except that
         up to 25% of the value of the Portfolio's total assets may be invested
         without regard to such 5% limitation.

         In accordance with current regulations of the SEC, the Portfolio
intends to limit investments in the securities of any single issuer (other than
securities issued or guaranteed by the U.S. Government, its agencies or
instrumentalities) to not more than 5% of the Portfolio's total assets at the
time of purchase, provided that the Portfolio may invest up to 25% of its total
assets in the securities of any one issuer for a period of up to three business
days. This intention is not, however, a fundamental policy of the Portfolio. The
Portfolio would have the ability to invest more than five percent of its assets
in any one issuer in accordance with its fundamental policy only in the event
that Rule 2a-7 of the 1940 Act is amended in the future.


                                PRICING OF SHARES

         The Portfolio's net asset value per Share is determined by the
Administrator as of 12:00 noon (Eastern time) and as of the close of regular
trading hours on the New York Stock Exchange (the "Exchange") (currently, 4:00
p.m. Eastern time) on each weekday, with the exception of those holidays on
which the Exchange or the Federal Reserve Bank of St. Louis are closed (a
"Business Day"). Currently one or both of these institutions are closed on the
customary national business holidays of New Year's Day, Martin Luther King, Jr.
Day, Presidents' Day, Good Friday, Memorial Day (observed), Independence Day
(observed), Labor Day, Columbus Day, Veterans' Day, Thanksgiving Day and
Christmas Day (observed).

         The Portfolio's assets are valued based upon the amortized cost method.
Although the Portfolio seeks to maintain its net asset value per Share at $1.00,
there can be no assurance that the net asset value per Share will not vary. See
the Statement of Additional Information under "Net Asset Value" for further
information.

         The public offering price for Shares of the Portfolio is based upon the
net asset value per Share. The net asset value of the Shares is calculated by
adding the value of the Portfolio's investments, cash and other assets,
subtracting the Portfolio's liabilities, and then dividing the result by the
total number of Shares that are outstanding.

                                      -11-
<PAGE>   14
                        HOW TO PURCHASE AND REDEEM SHARES

PURCHASE OF SHARES

         Shares of the Portfolio are sold without any sales charge through
broker-dealers or other financial advisers acting on behalf of their customers.
Generally, investors purchase Shares through a broker-dealer organization which
has a sales agreement with the Distributor or through a financial organization
which has entered into a servicing agreement with the Fund with respect to the
Portfolio. The organization is responsible for transmitting purchase orders
directly to the Fund.

         Purchases may be effected on Business Days when the Adviser,
Sub-Adviser, Distributor, and Custodian are open for business. The Fund reserves
the right to reject any purchase order, including purchases made with foreign
and third party drafts or checks.

         EFFECTIVE TIME OF PURCHASE. A purchase order for the Portfolio received
and accepted by the Fund by 2:00 p.m. (Eastern time) on a Business Day is
effected at the net asset value per Share next determined after receipt of the
order in good form if the Fund's Custodian has received payment in federal funds
or other immediately available funds by 4:00 p.m. (Eastern time) that day. If
such funds are not available for investment by 4:00 p.m. (Eastern time), the
order will be cancelled. Purchase orders received after 2:00 p.m. (Eastern time)
will be placed the following Business Day.

         It is the responsibility of broker-dealers or financial advisers to
promptly transmit orders to the Distributor. If a broker-dealer or financial
adviser fails to do so, the investor's right to that day's closing price must be
settled between the investor and the broker-dealer or financial adviser. Payment
for orders which are not received or accepted will be returned after prompt
inquiry to the transmitting organization.

REDEMPTION OF SHARES

         Redemption orders should be placed with or through the same
broker-dealer or financial adviser that placed the original purchase order.
Redemption orders are effected at the Portfolio's net asset value per Share next
determined after receipt of the order by the Fund. The broker-dealer or
financial adviser through which the investor placed the order is responsible for
transmitting redemption orders to the Fund on a timely basis. No charge for
sending redemption payments electronically is currently imposed by the Fund,
although a charge may be imposed in the future. The Fund reserves the right to
send redemption proceeds electronically within seven days after receiving a
redemption order if, in the judgment of the Sub-Adviser, an earlier payment
could adversely affect the Portfolio.

         The Fund's transfer agent may require a signature guarantee by an
eligible guarantor institution on written redemption requests. For purposes of
this policy, the term "eligible guarantor institution" shall include banks,
brokers, dealers, credit unions, securities exchanges and associations, clearing
agencies and savings associations as those terms are defined in Rule 17Ad-15
under the Securities Exchange Act of 1934. The Transfer Agent reserves the right
to reject any signature guarantee if (1) it has reason to believe that the
signature is not genuine, (2)

                                      -12-
<PAGE>   15
it has reason to believe that the transaction would otherwise be improper, or
(3) the guarantor institution is a broker or dealer that is neither a member of
a clearing corporation nor maintains net capital of at least $100,000. The
signature guarantee requirement will be waived if all of the following
conditions apply: (1) the redemption check is payable to the shareholder(s) of
record and (2) the redemption check is mailed to the shareholder(s) at the
address of record or the proceeds are either mailed or sent electronically to a
commercial bank account previously designated on the account application. An
investor with questions or needing assistance should contact his or her
broker-dealer or financial adviser. Additional documentation may be required if
the redemption is requested by a corporation, partnership, trust, fiduciary,
executor, or administrator.

OTHER PURCHASE AND REDEMPTION INFORMATION

         On a Business Day when the Exchange closes early due to a partial
holiday or otherwise, the Fund reserves the right to advance the times at which
purchase and redemption orders must be received in order to be processed on that
Business Day.

         At various times, the Fund may be requested to redeem Shares for which
it has not yet received good payment. In such circumstances, the Fund may delay
the forwarding of proceeds until payment has been collected for the purchase of
such Shares which may take up to 15 days or more from the date of purchase. To
avoid delay in payment upon redemption shortly after purchasing Shares,
investors should purchase Shares by certified or bank check or by electronic
transfer. The Fund intends to pay cash for all Shares redeemed, but under
abnormal conditions which make payment in cash unwise, the Fund may make payment
wholly or partly in portfolio securities at their then market value equal to the
redemption price. In such cases, an investor may incur brokerage costs in
converting such securities to cash.

                                     YIELDS

         YIELD QUOTATIONS WILL FLUCTUATE, ARE BASED ON HISTORICAL EARNINGS, AND
ARE NOT INTENDED TO INDICATE FUTURE PERFORMANCE. The methods used to compute the
Portfolio's yields are described below and in the Statement of Additional
Information.

         From time to time, performance information such as "yield" and
"effective yield" for the Portfolio's Shares may be quoted in advertisements or
in communications to shareholders. The "yield" quoted in advertisements refers
to the income generated by an investment in Shares of the Portfolio over a
specified period (such as a seven-day period) identified in connection with the
particular yield quotation. This income is then "annualized." That is, the
amount of income generated by the investment during that period is assumed to be
generated for each such period over a 52-week or one-year period and is shown as
a percentage of the investment. The "effective yield" is calculated similarly
but, when annualized, the income earned by an investment in Shares of the
Portfolio is assumed to be reinvested. The "effective yield" will be slightly
higher than the "yield" because of the compounding effect of this assumed
reinvestment.

         Performance data for the Portfolio may be compared to the performance
of other mutual funds with comparable investment objectives and policies through
various mutual fund or market

                                      -13-
<PAGE>   16
indices and data such as that provided by Lehman Brothers, Inc. or any of its
affiliates, Ibbotson Associates, Inc., Lipper Analytical Services, Inc., Mutual
Fund Forecaster and IBC MONEY FUND REPORT(R) published by IBC. References may
also be made to indices or data published in Money Magazine, Forbes, Barron's,
The Wall Street Journal, The New York Times, Business Week, American Banker,
Institutional Investor, Pensions and Investments, U.S.A. Today, Fortune,
CDA/Wiesenberger, Morningstar, Inc. and publications of a local or regional
nature. In addition to performance information, general information about the
Portfolio that appears in a publication such as those mentioned above may be
included in advertisements and in reports to Shareholders.

         Performance quotations represent the Portfolio's past performance and
should not be considered as representative of future results. Any account fees
charged by an investment representative will not be included in the calculations
of the Portfolio's yields and total returns. Such fees, if any, will reduce the
investor's net return on an investment in the Portfolio.

                           DIVIDENDS AND DISTRIBUTIONS

         Dividends from net investment income of the Portfolio are declared
daily and paid monthly not later than five Business Days after the end of each
month. Shares of the Portfolio earn dividends from the day the purchase order is
received by the transfer agent through the day before the redemption order for
such Shares is received.

         The Portfolio does not expect to realize capital gains. Net realized
capital gains of the Portfolio, if any, are distributed at least annually. All
dividends and distributions are automatically reinvested in additional Shares of
the Portfolio unless the investor has (i) otherwise indicated in the account
application, or (ii) redeemed all the Shares held in the Portfolio, in which
case a distribution will be paid in cash. Reinvested dividends and distributions
will be taxed in the same manner as those paid in cash.


                                      TAXES

         The Portfolio's distributions will generally be taxable to
shareholders. The Portfolio expects that all, or substantially all, of its
distributions will consist of ordinary income. You will be subject to income tax
on these distributions regardless whether they are paid in cash or reinvested in
additional shares. The one major exception to these tax principles is that
distributions on shares held in an IRA (or other tax-qualified plan) will not be
currently taxable.

         The Portfolio may be required in certain cases to withhold and remit to
the U.S. Treasury 31% of taxable dividends or gross sale proceeds paid to
shareholders who have failed to provide a correct tax identification number in
the manner required, who are subject to backup withholding by the Internal
Revenue Service for prior failure properly to include on their return payments
of taxable interest or dividends, or who have failed to certify to the Portfolio
that they are not subject to backup withholding when required to do so or that
they are "exempt recipients."

                                      -14-
<PAGE>   17
         You should consult your tax adviser for further information regarding
federal, state and local tax consequences with respect to your specific
situation.


                             MANAGEMENT OF THE FUND

         The Fund is managed under the direction of its Board of Directors. The
Statement of Additional Information contains the names of and general background
information concerning each director.

INVESTMENT ADVISER AND SUB-ADVISER

         Mississippi Valley Advisors Inc. (the "Adviser") serves as the
investment adviser to the Portfolio. The Adviser's principal office is located
at One Mercantile Center, Seventh & Washington Streets, St. Louis, Missouri
63101. The Adviser is an indirect wholly-owned non-bank subsidiary of
Mercantile. As of December 31, 1998, the Adviser had approximately $9.9 billion
in assets under investment management, including the Funds' assets, which were
approximately $4.3 billion.

         Subject to the general supervision of the Fund's Board of Directors and
in accordance with the Fund's investment policies, the Adviser manages the
Portfolio, makes investment decisions with respect to and places orders for all
purchases and sales of the Portfolio's securities and other investments, and
directs the maintenance of the Portfolio's records relating to such purchases
and sales.

         For the services provided and expenses assumed pursuant to the
investment advisory agreement, the Adviser is entitled to receive fees, computed
daily and payable monthly, at the annual rate of .40% of the first $1.5 billion
of the Portfolio's average daily net assets, .35% of the next $1.0 billion of
net assets and .25% of net assets in excess of $2.5 billion.

         The Adviser may from time to time voluntarily reduce all or a portion
of its advisory fee to increase the net income of the Portfolio available for
distributions as dividends. The voluntary fee reduction will cause the return of
the Portfolio to be higher than it would otherwise be in the absence of such
reduction.

         The Adviser has entered into a sub-advisory agreement with Conning
Asset Management Company ("Conning"). Pursuant to the terms of such sub-advisory
agreement, Conning has been retained by the Adviser to manage the investment and
reinvestment of the assets of the Portfolio, subject to the supervision of the
Adviser and to the direction and control of the Fund's Board of Directors. Under
this arrangement, Conning is responsible for the day-to-day management of the
Portfolio's assets. The Adviser reviews investment performance policies and
guidelines, maintains certain books and records, is responsible for selecting
and monitoring the performance of Conning, and for reporting on the activities
of Conning in managing the Portfolio to the Fund's Board of Directors.

                                      -15-
<PAGE>   18
         Conning is registered as an investment adviser with the SEC and is an
indirect subsidiary of GenAmerica Corporation, a financial services holding
company. Conning's principal office is located at 700 Market St, St. Louis,
Missouri 63101. Conning, founded in 1912, has extensive experience in investment
management and as of December 31, 1998 had approximately $29.6 billion in assets
under management.

         For the services provided and expenses assumed pursuant to its
sub-advisory agreement with the Adviser, Conning receives from the Adviser a
fee, computed daily and payable monthly, at the annual rate of .30% of the first
$1.5 billion of the Portfolio's average daily net assets, .25% of the next $1.0
billion of net assets and .15% of net assets in excess of $2.5 billion..

ADMINISTRATOR

         BISYS Fund Services Ohio, Inc., located at 3435 Stelzer Road, Columbus,
Ohio 43219, acts as the Portfolio's Administrator.

         The Administrator generally assists in all aspects of the Portfolio's
administration and operation. For its services, the Administrator is entitled to
receive a fee, computed daily and payable monthly, at the annual rate of .20% of
the Portfolio's average daily net assets. From time to time, the Administrator
may voluntarily waive all or a portion of the administration fees otherwise
payable by the Portfolio in order to increase the net income available for
distribution to shareholders.

DISTRIBUTOR

         Shares in the Portfolio are sold continuously by the Distributor, BISYS
Fund Services, an affiliate of the Administrator. The Distributor is a
registered broker-dealer with principal offices at 3435 Stelzer Road, Columbus,
Ohio 43219.

SHAREHOLDER SERVICES PLAN

         The Fund has adopted a Shareholder Services Plan with respect to the
Portfolio (the "Plan"). Under the Plan, the Portfolio may pay (a) Service
Organizations for shareholder liaison services, which means personal services
for shareholders and/or the maintenance of shareholder accounts, such as
responding to customer inquiries and providing information on accounts, and (b)
Service Organizations for administrative support services, which include but are
not limited to (i) transfer agent and sub-transfer agent services for beneficial
owners of Shares of the Portfolio; (ii) aggregating and processing purchase and
redemption orders; (iii) providing beneficial owners with statements showing
their positions in Shares of the Portfolio; (iv) processing dividend payments;
(v) providing sub-accounting services for Shares of the Portfolio held
beneficially; (vi) forwarding shareholder communications, such as proxies,
shareholder reports, dividend and tax notices, and updating prospectuses to
beneficial owners; and (vii) receiving, translating and transmitting proxies
executed by beneficial owners. See "Management of the Fund -- Service
Organizations" below for a description of the servicing agreements.

                                      -16-
<PAGE>   19
         Under the Plan, payments by the Fund to a Service Organization for
shareholder liaison services and/or administrative support services may not
exceed the annual rates of .25% and .50%, respectively, of the average daily net
assets attributable to the Portfolio's outstanding Shares which are owned of
record or beneficially by that Service Organization's customers for whom the
Service Organization is the dealer of record or shareholder of record or with
whom it has a servicing relationship. As of the date of this Prospectus, the
Fund intends to limit the Portfolio's payments for shareholder liaison and
administrative support services under the Plan to an aggregate fee of not more
than .65% (on an annualized basis) of the average daily net asset value of
Shares owned of record or beneficially by customers of Service Organizations.

SERVICE ORGANIZATIONS

         The servicing agreements adopted under the Shareholder Services Plan
(the "Servicing Agreements") require the Service Organizations receiving such
compensation (which may include affiliates of the Adviser and Sub-Adviser) to
perform certain services, including providing shareholder liaison services
and/or administrative support services with respect to the beneficial owners of
Shares of the Portfolio, such as those described above.

         Under the Servicing Agreements and upon notice to the Fund, a Service
Organization may subcontract with one or more entities for the performance of
certain services provided under its Servicing Agreement with the Fund. Such
Service Organization shall be as fully responsible to the Fund for the acts or
omissions of any subcontractor as it would be for its own acts or omissions. The
fees payable to any sub-contractor are paid by the Service Organization out of
the fees it receives from the Fund.

         The Fund understands that Service Organizations providing such services
may also charge fees to their customers beneficially owning such Shares. These
fees would be in addition to any amounts which may be received by such a Service
Organization under its Servicing Agreement with the Fund. The Fund's Servicing
Agreements require a Service Organization to disclose to its customers any
compensation payable to the Service Organization by the Portfolio and any other
compensation payable by its customers in connection with their investment in
such Shares. Customers of such a Service Organization receiving servicing fees
should read this Prospectus in light of the terms governing their accounts with
their Service Organization.

CUSTODIAN AND TRANSFER AGENT

         Mercantile Trust Company National Association, a wholly-owned
subsidiary of Mercantile, with principal offices located at One Mercantile
Center, 8th and Locust Streets, St. Louis, Missouri 63101, serves as Custodian
of the Portfolio's assets. BISYS Fund Services Ohio, Inc. also serves as the
Fund's transfer agent and dividend disbursing agent. Its address is 3435 Stelzer
Road, Columbus, Ohio 43219.

EXPENSES

         Except as noted above and in the Statement of Additional Information
under "Investment Advisory and Administrative Contracts" and "Custodian and
Transfer Agent," the Fund's service

                                      -17-
<PAGE>   20
contractors bear all expenses in connection with the performance of their
services. Expenses are deducted from the total income of the Portfolio before
dividends and distributions are paid. These expenses include, but are not
limited to, fees paid to the Adviser and Administrator, transfer agency fees,
fees and expenses of officers and directors who are not affiliated with the
Adviser or the Distributor, taxes, interest, legal fees, custodian fees,
auditing fees, shareholder servicing fees, certain fees and expenses in
registering and qualifying the Portfolio and its Shares for distribution under
federal and state securities laws, costs of preparing and printing prospectuses
and statements of additional information for regulatory purposes and for
distribution to existing shareholders, the expense of reports to shareholders,
shareholders' meetings and proxy solicitations, fidelity bond and directors' and
officers' liability insurance premiums, the expense of using independent pricing
services and other expenses which are not expressly assumed by the Adviser,
Distributor or Administrator under their respective agreements with the Fund.
The Fund also pays for brokerage fees, commissions and other transaction
charges, if any, in connection with the purchase and sale of portfolio
securities. Any general expenses of the Fund that are not readily identifiable
as belonging to a particular portfolio will be allocated among all portfolios by
or under the direction of the Board of Directors in a manner the Board
determines to be fair and equitable. See "Expense Summary" and "Management of
the Fund" above for additional information regarding expenses of the Portfolio.

                          OTHER INFORMATION CONCERNING
                             THE FUND AND ITS SHARES

DESCRIPTION OF SHARES

         The Fund was organized on September 9, 1982 as a Maryland corporation,
and is a mutual fund of the type known as an "open-end management investment
company." The Fund's principal office is located at 3435 Stelzer Road, Columbus,
Ohio 43219.

         The Fund's Charter authorizes the Board of Directors to issue up to
twenty billion full and fractional Shares of common stock, and to classify and
reclassify any unauthorized and unissued Shares into one or more classes of
Shares. The Board of Directors may similarly classify or reclassify any class of
Shares into one or more series. Pursuant to such authority, the Board of
Directors has authorized the issuance of the following series of shares
representing interests in the Portfolio, which is classified as a diversified
company under the 1940 Act: 2 billion Shares, representing interests in the
Conning Money Market Portfolio. Shares in the Portfolio will be issued without
Share certificates.

         Shareholders are entitled to one vote for each full Share held and
proportionate fractional votes for fractional Shares held. Shares of all
portfolios will vote together and not by class unless otherwise required by law
or permitted by the Board of Directors. All shareholders of a particular
portfolio will vote together as a single class on matters relating to the
portfolio's investment advisory (or sub-advisory) agreement, distribution plan,
investment objective, if fundamental, and fundamental policies.

                                      -18-
<PAGE>   21
         The Fund is not required, and currently does not intend, to hold annual
meetings except as required by the 1940 Act or other applicable law. Upon the
written request of the holders of 10% or more of the outstanding Shares, the
Fund will call a special meeting to vote on the question of removal of a
director.

         Shares of the Fund's portfolios have noncumulative voting rights and,
accordingly, the holders of more than 50% of the Fund's outstanding Shares
(irrespective of portfolio or class) may elect all of the Directors. Shares have
no preemptive rights and only such conversion and exchange rights as the Board
may grant in its discretion. When issued for payment as described in this
Prospectus, Shares will be fully paid and nonassessable.

MISCELLANEOUS

         As used in this Prospectus, a "vote of a majority of the outstanding
Shares" of the Portfolio means, with respect to the approval of an investment
advisory or sub-advisory agreement or a change in a fundamental investment
policy, the affirmative vote of the lesser of (a) more than 50% of the
outstanding Shares of the Portfolio, or (b) 67% or more of the Shares of the
Portfolio present at a meeting if more than 50% of the outstanding Shares of the
Portfolio are represented at the meeting in person or by proxy.

                  As of January 18, 1999, the Custodian and its affiliates
possessed, of record on behalf of their underlying customer accounts, voting or
investment power with respect to more than 25% of the Fund's outstanding Shares.
Therefore, the Custodian may be deemed to be a controlling person of the Fund
within the meaning of the 1940 Act.

         Inquiries regarding the Fund and the Portfolio may be directed to your
broker-dealer or financial organization.

         YEAR 2000 RISKS. Like other investment companies, financial and
business organizations and individuals around the world, the Fund could be
adversely affected if the computer systems used by the Adviser and the Fund's
other service providers do not properly process and calculate date-related
information and data from and after January 1, 2000. This is commonly known as
the "Year 2000 Problem." The Adviser is taking steps to address the Year 2000
Problem with respect to the computer systems that it uses and to obtain
assurance that comparable steps are being taken by the Fund's other major
service providers. At this time, however, there can be no assurance that these
steps will be sufficient to avoid any adverse impact on the Fund as a result of
the Year 2000 Problem.


NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS, OR IN THE PORTFOLIO'S
STATEMENT OF ADDITIONAL INFORMATION INCORPORATED HEREIN BY REFERENCE, IN
CONNECTION WITH THE OFFERING MADE BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE PORTFOLIO, THE FUND, OR THE DISTRIBUTOR. THIS PROSPECTUS DOES NOT
CONSTITUTE AN OFFERING BY THE PORTFOLIO, THE FUND OR THE DISTRIBUTOR IN ANY
JURISDICTION IN WHICH SUCH OFFERING MAY NOT LAWFULLY BE MADE.

                                      -19-
<PAGE>   22
                         CONNING MONEY MARKET PORTFOLIO
















                                 [CONNING LOGO]














                                   PROSPECTUS

                                JANUARY 19, 1999
                         (AS REVISED FEBRUARY 12, 1999)

                                      -20-
 
<PAGE>   23
                       THE CONNING MONEY MARKET PORTFOLIO
                                       OF
                             THE ARCH FUND(R), INC.


                       Statement of Additional Information

                                     Part B







                                January 19, 1999
                         (as revised February 12, 1999)
<PAGE>   24
                       Statement of Additional Information

                                       for

                       The Conning Money Market Portfolio
                                       of
                             The ARCH Fund(R), Inc.


                                January 19, 1999
                         (as revised February 12, 1999)


                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----
<S>                                                                                                            <C>
THE FUND ........................................................................................................2
INVESTMENT OBJECTIVE AND POLICIES................................................................................2
NET ASSET VALUE.................................................................................................10
ADDITIONAL PURCHASE AND REDEMPTION INFORMATION..................................................................11
ADDITIONAL YIELD INFORMATION....................................................................................12
DESCRIPTION OF SHARES...........................................................................................13
ADDITIONAL INFORMATION CONCERNING TAXES.........................................................................15
MANAGEMENT OF THE FUND..........................................................................................17
INDEPENDENT AUDITORS............................................................................................23
COUNSEL ........................................................................................................23
MISCELLANEOUS...................................................................................................23
APPENDIX A.......................................................................................................1
</TABLE>


This Statement of Additional Information, which provides supplemental
information applicable to the Conning Money Market Portfolio of The ARCH Fund,
Inc. (the "Fund"), is not a prospectus. It should be read only in conjunction
with such Portfolio's Prospectus dated January 19, 1999 (as revised February 12,
1999) and is incorporated by reference in its entirety into the Prospectus. No
investment in Shares of such Portfolio should be made without reading the
Prospectus. A copy of the Prospectus may be obtained by writing the Fund at 3435
Stelzer Road, Columbus, Ohio 43219 or by contacting your broker-dealer or
financial organization. Capitalized terms used but not defined herein have the
same meanings as in the Prospectus.

                                      -i-
<PAGE>   25
                                    THE FUND

                  This Statement of Additional Information relates to the
Conning Money Market Portfolio (the "Portfolio") of the Fund, an open-end,
management investment company. The Fund was organized on September 9, 1982 as a
Maryland corporation.


                        INVESTMENT OBJECTIVE AND POLICIES

                  The Sub-Adviser, under the supervision of the Adviser, makes
investment decisions with respect to the Portfolio in accordance with the SEC's
rules and regulations for money market funds.

                  The following policies supplement the description of the
investment objective and policies of the Portfolio described in the Prospectus.

                  COMMERCIAL PAPER, BANKERS' ACCEPTANCES, CERTIFICATES OF
DEPOSIT AND TIME DEPOSITS. Commercial paper represents short-term unsecured
promissory notes issued in bearer form by banks or bank holding companies,
corporations and finance companies. Certificates of deposit are negotiable
certificates issued against funds deposited in a commercial bank for a definite
period of time and earning a specified return. Bankers' acceptances are
negotiable drafts or bills of exchange, normally drawn by an importer or
exporter to pay for specific merchandise, which are "accepted" by a bank,
meaning, in effect, that the bank unconditionally agrees to pay the face value
of the instrument on maturity. Fixed time deposits are bank obligations payable
at a stated maturity date and bearing interest at a fixed rate. Fixed time
deposits may be withdrawn on demand by the investor but may be subject to early
withdrawal penalties that vary depending upon market conditions and the
remaining maturity of the obligation. There are no contractual restrictions on
the right to transfer a beneficial interest in a fixed time deposit to a third
party, although there is no market for such deposits.

                  As stated in the Prospectus, the Portfolio may invest a
portion of its assets in the obligations of foreign banks and foreign branches
of domestic banks. Such obligations may include Eurodollar Certificates of
Deposit ("ECDs") which are U.S. dollar-denominated certificates of deposit
issued by offices of foreign and domestic banks located outside the United
States; Eurodollar Time Deposits ("ETDs") which are U.S. dollar-denominated
deposits in a foreign branch of a U.S. bank or a foreign bank; Canadian Time
Deposits ("CTDs") which are essentially the same as ETDs except they are issued
by Canadian offices of major Canadian banks; Schedule Bs, which are obligations
issued by Canadian branches of foreign or domestic banks; Yankee Certificates of
Deposit ("Yankee CDs") which are U.S. dollar-denominated certificates of deposit
issued by a U.S. branch of a foreign bank and held in the United States; and
Yankee Bankers' Acceptances ("Yankee BAs") which are U.S. dollar-denominated
bankers' acceptances issued by a U.S. branch of a foreign bank and held in the
United States.

                                      -2-
<PAGE>   26
OTHER APPLICABLE INVESTMENT POLICIES

                  MUNICIPAL OBLIGATIONS. As described in the Prospectus and
subject to its investment limitations, the Portfolio may invest in municipal
obligations. Municipal obligations include debt obligations issued by
governmental entities which obtain funds for various public purposes, including
the construction of a wide range of public facilities, the refunding of
outstanding obligations, the payment of general operating expenses and the
extension of loans to public institutions and facilities.

                  The two principal classifications of municipal obligations
consist of "general obligation" and "revenue" issues. There are, of course,
variations in the quality of municipal obligations both within a particular
classification and between classifications, and the yields on municipal
obligations depend upon a variety of factors, including general conditions of
the money market and/or the municipal bond market, the financial condition of
the issuer, the size of a particular offering, the maturity of the obligation
and the rating of the issue. The ratings of Rating Agencies, such as Moody's
Investors Service, Inc. ("Moody's") and Standard & Poor's Ratings Group ("S&P"),
represent their opinions as to the quality of municipal obligations. It should
be emphasized, however, that ratings are general and are not absolute standards
of quality, and municipal obligations with the same maturity, interest rate and
rating may have different yields while municipal obligations of the same
maturity and interest rate with different ratings may have the same yield.

                  The payment of principal and interest on most municipal
securities purchased by the Portfolio will depend upon the ability of the
issuers to meet their obligations. An issuer's obligations under its municipal
obligations are subject to the provisions of bankruptcy, insolvency and other
laws affecting the rights and remedies of creditors, such as the federal
bankruptcy code, and laws, if any, which may be enacted by federal or state
legislatures extending the time for payment of principal or interest, or both,
or imposing other constraints upon enforcement of such obligations or upon the
ability of municipalities to levy taxes. The power or ability of an issuer to
meet its obligations for the payment of interest on and principal of its
municipal obligations may be materially adversely affected by litigation or
other conditions. The District of Columbia, each state, each of their political
subdivisions, agencies, instrumentalities and authorities and each multi-state
agency of which a state is a member is a separate "issuer" as that term is used
in this Statement of Additional Information and the Prospectus. The
non-governmental user of facilities financed by private activity bonds is also
considered to be an "issuer."

                  The Portfolio may also purchase general obligation notes, tax
anticipation notes, bond anticipation notes, revenue anticipation notes,
tax-exempt commercial paper, construction loan notes and other tax-exempt loans.
Such instruments are issued in anticipation of the receipt of tax funds, the
proceeds of bond, placements, or other revenues.

                  Certain types of municipal obligations (private activity
bonds) have been or are issued to obtain funds to provide, among other things,
privately operated housing facilities, pollution control facilities, convention
or trade show facilities, mass transit, airport, port or 

                                      -3-
<PAGE>   27
parking facilities and certain local facilities for water supply, gas,
electricity or sewage or solid waste disposal. Private activity bonds are also
issued to privately held or publicly owned corporations in the financing of
commercial or industrial facilities. State and local governments are authorized
in most states to issue private activity bonds for such purposes in order to
encourage corporations to locate within their communities. The principal and
interest on these obligations may be payable from the general revenues of the
users of such facilities. Furthermore, payment of principal and interest on
municipal obligations of certain projects may be secured by mortgages or deeds
of trust. In the event of a default, enforcement of the mortgages or deeds of
trust will be subject to statutory enforcement procedures and limitations,
including rights of redemption and limitations on obtaining deficiency
judgments. In the event of a foreclosure, collection of the proceeds of the
foreclosure may be delayed, and the amount of proceeds from the foreclosure may
not be sufficient to pay the principal of and accrued interest on the defaulted
municipal obligations.

                  Dividends paid by the Portfolio that are derived from interest
on municipal obligations would be taxable to its shareholders for federal income
tax purposes.

                  VARIABLE AND FLOATING RATE INSTRUMENTS. The Portfolio may
purchase variable and floating rate obligations as described in the Prospectus.
The Sub-Adviser will consider the earning power, cash flows and other liquidity
ratios of the issuers and guarantors of such obligations and, for obligations
subject to a demand feature, will monitor their financial status to meet payment
on demand. The Portfolio will invest in such instruments only when the
Sub-Adviser believes that any risk of loss due to issuer default is minimal. In
determining average weighted portfolio maturity, a variable or floating rate
instrument issued or guaranteed by the U.S. Government, its agencies and
instrumentalities, or a variable or floating rate instrument scheduled on its
face to be paid in 397 days or less, will be deemed to have a maturity equal to
the period remaining until the obligation's next interest rate adjustment. Other
variable or floating rate notes will be deemed to have a maturity equal to the
longer of the period remaining to the next interest rate adjustment or the time
the Portfolio can recover payment of principal as specified in the instrument.

                  Variable or floating rate obligations held by the Portfolio
may have maturities of more than 397 days provided that: (i) the Portfolio is
entitled to payment of principal at any time upon not more than 30 days' notice
or at specified intervals not exceeding 397 days (upon not more than 30 days'
notice); (ii) the rate of interest on a variable rate instrument is adjusted
automatically on set dates not exceeding 397 days, and the instrument, upon
adjustment, can reasonably be expected to have a market value that approximates
its par value; and (iii) the rate of interest on a floating rate instrument is
adjusted automatically whenever a specified interest rate changes and the
instrument, at any time, can reasonably be expected to have a market value that
approximates its par value.

                  RESTRICTED SECURITIES. The SEC has adopted Rule 144A which
allows for a broader institutional trading market for securities otherwise
subject to restrictions on resale to the general public. The Portfolio will not
invest more than 10% of its total assets in the securities of

                                      -4-
<PAGE>   28
issuers which are restricted as to disposition, other than restricted securities
eligible for resale pursuant to Rule 144A.

                  The Sub-Adviser monitors the liquidity of restricted
securities in the Portfolio under the supervision of the Board of Directors. In
reaching liquidity decisions, the Sub-Adviser may consider the following
factors, although such factors may not necessarily be determinative: (1) the
unregistered nature of a security; (2) the frequency of trades and quotes for
the security; (3) the number of dealers willing to purchase or sell the security
and the number of other potential purchasers; (4) the trading markets for the
security; (5) dealer undertakings to make a market in the security; and (6) the
nature of the security and the nature of the marketplace trades (including the
time needed to dispose of the security, methods of soliciting offers, and
mechanics of transfer).

                  U.S. GOVERNMENT OBLIGATIONS. Examples of the types of U.S.
Government obligations that may be held by the Portfolio include, in addition to
U.S. Treasury bills, the obligations of Federal Home Loan Banks, Federal Farm
Credit Banks, Federal Land Banks, the Federal Housing Administration, Farmers
Home Administration, Export-Import Bank of the United States, Small Business
Administration, Government National Mortgage Association, General Services
Administration, Central Bank for Cooperatives, Federal Home Loan Mortgage
Corporation, Federal Intermediate Credit Banks, Maritime Administration,
Resolution Trust Corporation, and International Bank for Reconstruction and
Development.

                  Obligations of certain agencies and instrumentalities of the
U.S. Government, such as the Government National Mortgage Association, are
supported by the full faith and credit of the U.S. Treasury; others, such as
those of the Export-Import Bank of the United States, are supported by the right
of the issuer to borrow from the Treasury; others, such as those of the Federal
National Mortgage Association, are supported by the discretionary authority of
the U.S. Government to purchase the agency's obligations; still others, such as
those of the Federal Home Loan Mortgage Corporation, are supported only by the
credit of the instrumentality. No assurance can be given that the U.S.
Government would provide financial support to U.S. Government-sponsored
instrumentalities if it is not obligated to do so by law.

                  STRIPPED U.S. GOVERNMENT OBLIGATIONS. As described in the
Prospectus, the Portfolio may hold stripped U.S. Treasury securities, including
(1) coupons that have been stripped from U.S. Treasury bonds, which are held
through the Federal Reserve Bank's book-entry system called "Separate Trading of
Registered Interest and Principal of Securities" ("STRIPS") or (2) through a
program entitled "Coupon Under Book-Entry Safekeeping" ("CUBES"). Having
separated the interest coupons from the underlying principal of the U.S.
Government obligations, the holder will resell the stripped securities in
custodial receipt programs with a number of different names, including "Treasury
Income Growth Receipts" ("TIGRS") and "Certificates of Accrual on Treasury
Securities" ("CATS"). Such securities may not be as liquid as STRIPS and CUBES
and are not viewed by the staff of the SEC as U.S. Government securities for
purposes of the 1940 Act.

                                      -5-
<PAGE>   29
                  The stripped coupons are sold separately from the underlying
principal, which is sold at a deep discount because the buyer receives only the
right to receive a future fixed payment on the security and does not receive any
rights to periodic interest (cash) payments. Purchasers of stripped
principal-only securities acquire, in effect, discount obligations that are
economically identical to the zero coupon securities that the Treasury
Department sells itself. In the case of bearer securities (i.e., unregistered
securities which are owned ostensibly by the bearer or holder), the underlying
U.S. Treasury bonds and notes themselves are held in trust on behalf of the
owners. Counsel to the underwriters of these certificates or other evidences of
ownership of the U.S. Treasury securities have stated that, in their opinion,
purchasers of the stripped securities, such as the Portfolio, most likely will
be deemed the beneficial holders of the underlying U.S. Government obligations
for federal tax and securities law purposes.

                  The U.S. Government does not issue stripped Treasury
securities directly. The STRIPS program, which is ongoing, is designed to
facilitate the secondary market in the stripping of selected U.S. Treasury notes
and bonds into separate interest and principal components. Under the program,
the U.S. Treasury continues to sell its notes and bonds through its customary
auction process. A purchaser of those specified notes and bonds who has access
to a book-entry account at a Federal Reserve bank, however, may separate the
Treasury notes and bonds into interest and principal components. The selected
Treasury securities thereafter may be maintained in the book-entry system
operated by the Federal Reserve in a manner that permits the separate trading
and ownership of the interest and principal payments.

                  For custodial receipts, the underlying debt obligations are
held separate from the general assets of the custodian and nominal holder of
such securities, and are not subject to any right, charge, security interest,
lien or claim of any kind in favor of or against the custodian or any person
claiming through the custodian. The custodian is also responsible for applying
all payments received on those underlying debt obligations to the related
receipts or certificates without making any deductions other than applicable tax
withholding. The custodian is required to maintain insurance for the protection
of holders of receipts or certificates in customary amounts against losses
resulting from the custody arrangement due to dishonest or fraudulent action by
the custodian's employees. The holders of receipts or certificates, as the real
parties in interest, are entitled to the rights and privileges of the underlying
debt obligations, including the right, in the event of default in payment of
principal or interest, to proceed individually against the issuer without acting
in concert with other holders of those receipts or certificates or the
custodian.

                  SECURITIES LENDING. As described in the Prospectus, the
Portfolio may lend its portfolio securities to broker-dealers, banks or
institutional borrowers. While the Portfolio would not have the right to vote
securities on loan, the Portfolio intends to terminate the loan and regain the
right to vote should this be considered important with respect to the
investment. When the Portfolio lends its securities, it continues to receive
interest or dividends on the securities loaned and may simultaneously earn
interest on the investment of the cash collateral which will be invested in
readily marketable, high quality, short-term obligations. Although voting
rights, or rights to consent, attendant to securities on loan pass to the
borrower, such loans may be called

                                      -6-
<PAGE>   30
at any time and will be called so that the securities may be voted by the
Portfolio if a material event affecting the investment is to occur.

                  Securities lending arrangements with broker-dealers require
that the loans be secured by the collateral equal in value to at least the
market value of the securities loaned. During the term of such arrangements, the
Portfolio will maintain such value by the daily marking-to-market of the
collateral.

                  SECURITIES OF OTHER INVESTMENT COMPANIES. As described in the
Prospectus, the Portfolio intends to limit investments in securities issued by
other investment companies within the limits prescribed by the 1940 Act. The
Portfolio currently intends to limit its investments so that, as determined
immediately after a securities purchase is made: (a) not more than 5% of the
value of its total assets will be invested in the securities of any one
investment company; (b) not more than 10% of the value of its total assets will
be invested in the aggregate in securities of investment companies as a group;
(c) not more than 3% of the outstanding voting stock of any one investment
company will be owned by the Portfolio; and (d) not more than 10% of the
outstanding voting stock of any one investment company will be owned in the
aggregate by the Portfolio and other investment companies advised by the Adviser
or Sub-Adviser.

                  WHEN-ISSUED PURCHASES AND FORWARD COMMITMENTS. When-issued and
forward commitment transactions are made to secure what is considered to be an
advantageous price or yield for the Portfolio. When the Portfolio agrees to
purchase or sell securities on a when-issued or forward commitment basis, the
Custodian (or sub-custodian) will maintain in a segregated account cash or
liquid portfolio securities having a value (determined daily) at least equal to
the amount of the Portfolio's commitments. In the case of a forward commitment
to sell portfolio securities, the Custodian (or sub-custodian) will hold the
portfolio securities themselves in a segregated account while the commitment is
outstanding. These procedures are designed to ensure that the Portfolio will
maintain sufficient assets at all times to cover its obligations under
when-issued purchases and forward commitment transactions.

                  The Portfolio will make commitments to purchase securities on
a when-issued basis or to purchase or sell securities on a forward commitment
basis only with the intention of completing the transaction and actually
purchasing or selling the securities. If deemed advisable as a matter of
investment strategy, however, the Portfolio may dispose of or renegotiate a
commitment after it is entered into and may sell securities it has committed to
purchase before those securities are delivered to the Portfolio on the
settlement date. In these cases, the Portfolio may realize a capital gain or
loss.

                  When the Portfolio engages in when-issued and forward
commitment transactions, it relies on the other party to consummate the trade.
Failure of such party to do so may result in the Portfolio's incurring a loss or
missing an opportunity to obtain a price considered to be advantageous.

                  The value of the securities underlying such commitments to
purchase or sell securities, and any subsequent fluctuations in their value, is
taken into account when determining

                                      -7-
<PAGE>   31
the Portfolio's net asset value starting on the day the Portfolio agrees to
purchase the securities. The Portfolio does not earn interest on the securities
it has committed to purchase until they are paid for and delivered on the
settlement date. When the Portfolio makes a forward commitment to sell
securities it owns, the proceeds to be received upon settlement are included in
the Portfolio's assets, and fluctuations in the value of the underlying
securities are not reflected in the Portfolio's net asset value as long as the
commitment remains in effect.

                  Because the Portfolio will set aside cash or liquid assets to
satisfy its purchase commitments in the manner described, the Portfolio's
liquidity and ability to manage its portfolio might be affected in the event its
commitments to purchase securities on a when-issued or forward commitment basis
ever exceeded 25% of the value of its total assets.

                  REPURCHASE AGREEMENTS. Under the terms of a repurchase
agreement, the Portfolio purchases securities from financial institutions such
as banks and broker-dealers that are deemed to be creditworthy by the
Sub-Adviser under guidelines approved by the Board of Directors, subject to the
seller's agreement to repurchase them at a mutually agreed-upon date and price.
Securities subject to repurchase agreements are held by the Portfolio's
Custodian or in the Federal Reserve/Treasury book-entry system. During the term
of any repurchase agreement, the Sub-Adviser will continue to monitor the
creditworthiness of the seller. The repurchase price generally equals 102% of
the price paid by the Portfolio plus interest negotiated on the basis of current
short-term rates (which may be more or less than the rate on the underlying
portfolio securities). Under a repurchase agreement, the seller is required to
maintain the value of the securities subject to the agreement at not less than
the repurchase price, and securities subject to repurchase agreements are
maintained by the Portfolio's Custodian in segregated accounts in accordance
with the 1940 Act. Default by the seller could, however, expose the Portfolio to
possible loss because of adverse market action or delay in connection with the
disposition of the underlying securities. Repurchase agreements are considered
to be loans by the Portfolio under the 1940 Act.

                  REVERSE REPURCHASE AGREEMENTS. As described in the Prospectus,
the Portfolio may enter into reverse repurchase agreements. At the time the
Portfolio enters into such an arrangement, it will place, in a segregated
custodial account, liquid assets having a value at least equal to the repurchase
price (including accrued interest) and will subsequently monitor the account to
ensure that such equivalent value is maintained.

                  Reverse repurchase agreements involve the risk that the market
value of the securities sold by the Portfolio may decline below the price of the
securities that it is obligated to repurchase. Reverse repurchase agreements are
considered to be borrowings under the 1940 Act. The Portfolio intends to limit
its borrowings (including reverse repurchase agreements) during the current
fiscal year to not more than 5% of its net assets.

PORTFOLIO TRANSACTIONS

                  Subject to the general control of the Fund's Board of
Directors and under the supervision of the Adviser, the Sub-Adviser is
responsible for making decisions with respect to,

                                      -8-
<PAGE>   32

and placing orders for, all purchases and sales of portfolio securities for the
Portfolio. Securities purchased and sold by the Portfolio which are traded in
the over-the-counter market are generally done so on a net basis (i.e., without
commission) through dealers, or otherwise involve transactions directly with the
issuer of an instrument. There is generally no stated commission in the case of
securities traded in the over-the-counter markets, but the price of those
securities includes an undisclosed commission or mark-up. The cost of securities
purchased from underwriters includes an underwriter's commission or concession,
and the prices at which securities are purchased from and sold to dealers
include a dealer's mark-up or mark-down.

                  The Portfolio may participate, if and when practicable, in
bidding for the purchase of portfolio securities directly from an issuer in
order to take advantage of the lower purchase price available to members of a
bidding group. The Portfolio will engage in this practice, however, only when
the Sub-Adviser, in its sole discretion, believes such practice to be otherwise
in the Portfolio's interests.

                  Investment decisions for the Portfolio are made independently
from those for other investment companies and accounts advised or managed by the
Sub-Adviser. Such other investment companies and accounts may also invest in the
same securities as the Portfolio. When a purchase or sale of the same security
is made at substantially the same time on behalf of the Portfolio and another
investment company or account, the transaction will be averaged as to price, and
available investments allocated as to amount, in a manner which the Sub-Adviser
believes to be equitable to the Portfolio and such other investment company or
account. In some instances, this investment procedure may adversely affect the
price paid or received by the Portfolio or the size of the position obtained by
the Portfolio. To the extent permitted by law, Sub-Adviser may aggregate the
securities to be sold or purchased for the Portfolio with those to be sold or
purchased for other investment companies or accounts in order to obtain best
execution.

PORTFOLIO TURNOVER

                  The Portfolio's annual portfolio turnover rate is calculated
by dividing the lesser of purchases or sales of portfolio securities for the
year by the monthly average value of the Portfolio's securities. The calculation
excludes all securities the maturities of which at the time of acquisition were
thirteen months or less. Consequently, because the Portfolio is a money market
fund, there is not expected to be any portfolio turnover for the Portfolio for
regulatory reporting purposes.

INVESTMENT LIMITATIONS

                           The following investment limitations may be changed
only by an affirmative vote of a majority of the outstanding shares of the
Portfolio (as defined under "Other Information Concerning the Fund and Its
Shares -- Miscellaneous" in the Portfolio's Prospectus). These investment
limitations supplement those that appear in the Prospectus.


                                      -9-
<PAGE>   33
                           THE PORTFOLIO MAY NOT:

                  1. Acquire any other investment company or investment company
security except in connection with a merger, consolidation, reorganization or
acquisition of assets, or where otherwise permitted by the 1940 Act.

                  2. Purchase securities of any one issuer, other than
obligations of the U.S. Government, its agencies or instrumentalities, if
immediately after such purchase more than 5% of the value of the Portfolio's
total assets would be invested in such issuer, except that up to 25% of the
value of the Portfolio's total assets may be invested without regard to such 5%
limitation.

                  3. Purchase or sell real estate (the Portfolio may purchase
commercial paper issued by companies which invest in real estate or interests
therein).

                  4. Purchase securities on margin, make short sales of
securities or maintain a short position.

                  5. Underwrite the securities of other issuers.

                  6. Purchase or sell commodity contracts, or invest in oil, gas
or mineral exploration or development programs.

                  7. Write or purchase put or call options.

                  In accordance with Rule 2a-7 of the 1940 Act, the Portfolio
intends to invest no more than five percent of its total assets in the
securities of any one issuer; provided, however, that the Portfolio may invest
more than five percent of its total assets in the First Tier Eligible Securities
of a single issuer for a period of up to three business days after the purchase
thereof, provided further that the Portfolio would not make more than one
investment in accordance with the foregoing provision at any time. This
intention is not, however, a fundamental policy of the Portfolio and may change
in the event Rule 2a-7 is amended in the future.


                                 NET ASSET VALUE

                As stated in the Prospectus, the net asset value per share of
the Portfolio is calculated by adding the value of all of the portfolio
securities and other assets belonging to the Portfolio, subtracting the
liabilities of the Portfolio, and dividing the result by the number of
outstanding shares of the Portfolio.

   



                                      -10-
<PAGE>   34
             The assets in the Portfolio are valued according to the
amortized cost method of valuation. Pursuant to this method, an instrument is
valued at its cost initially and, thereafter, a constant amortization to
maturity of any discount or premium is assumed, regardless of the impact of
fluctuating interest rates on the market value of the instrument. This method
may result in periods during which value, as determined by amortized cost, is
higher or lower than the market price the Portfolio would receive if it sold the
instrument. The value of securities in the Portfolio can be expected to vary
inversely with changes in prevailing interest rates.

                The Portfolio invests only in instruments that present minimal
credit risks and meet the ratings criteria described in the Prospectus. In
addition, the Portfolio maintains a dollar-weighted average portfolio maturity
appropriate to its objective of maintaining a stable net asset value per share,
provided that the Portfolio will not purchase any security with a remaining
maturity of more than thirteen months (397 days) (securities subject to
repurchase agreements and certain other securities may bear longer maturities)
nor maintain a dollar-weighted average portfolio maturity that exceeds 90 days.
The Fund's Board of Directors has approved procedures that are intended to
stabilize the Portfolio's net asset value per share at $1.00 for purposes of
pricing sales and redemptions. These procedures include the determination, at
such intervals as the Board deems appropriate, of the extent, if any, to which
the net asset value per share of the Portfolio calculated by using available
market quotations deviates from $1.00 per share. In the event such deviation
exceeds one-half of one percent, the Board will promptly consider what action,
if any, should be initiated. If the Board believes that the extent of any
deviation from the Portfolio's $1.00 amortized cost price per share may result
in material dilution or other unfair results to new or existing investors, it
will take such steps as it considers appropriate to eliminate or reduce to the
extent reasonably practicable any such dilution or unfair results. These steps
may include, but are not limited to, selling portfolio instruments prior to
maturity; shortening the average portfolio maturity; withholding or reducing
dividends; redeeming shares in kind; or utilizing a net asset value per share
determined by using available market quotations.


                 ADDITIONAL PURCHASE AND REDEMPTION INFORMATION

                Shares in the Portfolio are sold on a continuous basis by the
Distributor. As described in the Prospectus, Shares of the Portfolio are sold to
customers of broker-dealers and other financial advisers at the public offering
price based on the Portfolio's net asset value without a sales charge.

                The Fund may redeem Shares involuntarily if the net income with
respect to the Portfolio is negative or such redemption otherwise appears
appropriate in light of the Fund's responsibilities under the 1940 Act.

                Under the 1940 Act, the Portfolio may suspend the right of
redemption or postpone the date of payment for Shares during any period when (a)
trading on the Exchange is restricted by applicable rules and regulations of the
SEC; (b) the Exchange is closed for other than customary weekend and holiday
closing; (c) the SEC has by order permitted such suspension; or (d) an emergency



                                      -11-
<PAGE>   35
exists as determined by the SEC. The Portfolio may also suspend or postpone the
recordation of the transfer of its Shares upon the occurrence of any of the
foregoing conditions.

                In addition to the situations described in the Prospectus under
"How to Purchase and Redeem Shares," the Portfolio may redeem Shares
involuntarily to reimburse the Portfolio for any loss sustained by reason of the
failure of a shareholder to make full payment for Shares purchased by the
shareholder or to collect any charge relating to a transaction effected for the
benefit of a shareholder which is applicable to Portfolio Shares as provided in
the Prospectus from time to time.


                          ADDITIONAL YIELD INFORMATION

                  The Portfolio's "yield" and "effective yield," as described in
the Prospectus, are calculated according to formulas prescribed by the SEC.
Standardized 7 day "yield" is computed by determining the net change, exclusive
of capital changes, in the value of a hypothetical preexisting account in the
Portfolio having a balance of one Share at the beginning of the period,
subtracting a hypothetical charge reflecting deductions from shareholder
accounts, dividing the difference by the value of the account at the beginning
of the base period to obtain the base period return, and then multiplying the
base period return by (365/7). The net change in the value of an account
includes the value of additional Shares purchased with dividends from the
original Share, and dividends declared on both the original Share and any such
additional Shares, net of all fees, other than nonrecurring account or sales
charges, that are charged by the Portfolio to all shareholder accounts in
proportion to the length of the base period and the Portfolio's mean (or median)
account size. The capital changes to be excluded from the calculation of the net
change in account value are realized gains and losses from the sale of
securities and unrealized appreciation and depreciation. "Effective yield" is
computed by compounding the unannualized base period return (calculated as
above) by adding one to the base period return, raising the sum to a power equal
to 365 divided by seven, and subtracting one from the result. Based upon the
same calculations, the Portfolio's 30-day yields and 30-day effective yields may
also be quoted.

                  The Portfolio's quoted yield is not indicative of future
yields and depends upon factors such as portfolio maturity, the Portfolio's
expenses, and the types of instruments held by the Portfolio. Any account fees
imposed by financial institutions, Service Organizations, or broker-dealers
would reduce the Portfolio's effective yield.

                  Investors may judge the performance of the Portfolio by
comparing it to the performance of other mutual funds or mutual fund portfolios
with comparable investment objectives and policies. Such comparisons may be made
by referring to rankings prepared by independent services or other financial or
industry publications that monitor the performance of mutual funds. Such
comparisons may also be made by referring to data prepared by Lipper Analytical
Services, Inc. (a widely recognized independent service which monitors the
performance of mutual funds), Indata, Frank 




                                      -12-
<PAGE>   36
Russell, CDA, and the Bank Rate Monitor (which reports average yields for money
market accounts offered by the 50 leading banks and thrift institutions in the
top five standard metropolitan statistical areas). Other similar yield data,
including comparisons to the performance of Mercantile Bank repurchase
agreements, or the average yield data for similar asset classes including but
not limited to Treasury bills, notes and bonds, may also be used for comparison
purposes. Comparisons may also be made to indices or data published in the
following national financial publications: IBC's Money Fund Report(R),
MorningStar, CDA/Wiesenberger, Money Magazine, Forbes, Fortune, Barron's, The
Wall Street Journal, The New York Times, Business Week, American Banker,
Fortune, Institutional Investor, U.S.A. Today and publications of Ibbotson
Associates, Inc. and other publications of a local or regional nature. In
addition to performance information, general information about the Portfolio
that appears in a publication such as those mentioned above may be included in
advertisements, supplemental sales literature and in reports to Shareholders.

                  From time to time, the Fund may include the following types of
information in advertisements, supplemental sales literature and reports to
Shareholders: (1) discussions of general economic or financial principles (such
as the effects of inflation and the power of compounding); (2) discussions of
general economic trends; (3) presentations of statistical data to supplement
such discussions; (4) descriptions of past or anticipated portfolio holdings for
the Portfolio; (5) descriptions of investment strategies for the Portfolio; (6)
descriptions or comparisons of various investment products, which may or may not
include the Portfolio; (7) comparisons of investment products (including the
Portfolio) with relevant market or industry indices or other appropriate
benchmarks; and (8) discussions of rankings or ratings by recognized rating
organizations. Such data are for illustrative purposes only and are not intended
to indicate past or future performance results of the Portfolio. Actual
performance of the Portfolio may be more or less than that noted in the
hypothetical illustrations.

         Since performance will fluctuate, performance data for the Portfolio
cannot necessarily be used to compare an investment in the Portfolio with bank
deposits, savings accounts, and similar investment alternatives which often
provide an agreed or guaranteed fixed yield for a stated period of time.
Shareholders should remember that performance is generally a function of the
kind and quality of the instruments held in the Portfolio, portfolio maturity,
operating expenses, and market conditions. The current yield and performance of
the Portfolio may be obtained by calling your broker-dealer or financial
organization.

                              DESCRIPTION OF SHARES

         The Fund's Articles of Incorporation authorize the Board of Directors
to issue up to twenty billion full and fractional shares of capital stock, and
to classify or reclassify any unissued shares of the Fund into one or more
additional classes or by setting or changing in any one or more respects, their
respective preferences, conversion or other rights, voting powers, restrictions,
limitations as to dividends, qualifications and terms and conditions of
redemption. Pursuant to such authority the Fund's Board of Directors has
authorized the issuance of sixty-five 



                                      -13-
<PAGE>   37
classes of shares representing interests in one of nineteen investment
portfolios: the Treasury Money Market, Money Market, Tax-Exempt Money Market,
Conning Money Market, U.S. Government Securities, Intermediate Corporate Bond,
Bond Index, Government & Corporate Bond, Short-Intermediate Municipal, Missouri
Tax-Exempt Bond, Kansas Tax-Exempt Bond, National Municipal Bond, Equity
Income, Equity Index, Growth & Income Equity, Growth Equity, Small Cap Equity,
Small Cap Equity Index, International Equity and Balanced Portfolios. This
Statement of Additional Information relates only to the Shares of the Conning
Money Market Portfolio. Trust Shares, Trust II Shares, Institutional Shares,
Investor A Shares and/or Investor B Shares in each of the Fund's other
portfolios are offered through separate prospectuses to different categories of
investors. Portfolio Shares have no preemptive rights and only such conversion
or exchange rights as the Board may grant in its discretion. When issued for
payment as described in the Prospectus, Shares of the Portfolio will be fully
paid and nonassessable.

                  In the event of a liquidation or dissolution of the Fund,
Shares of the Portfolio are entitled to receive the assets available for
distribution belonging to that Portfolio, and a proportionate distribution,
based upon the relative asset values of the respective portfolios of the Fund,
of any general assets not belonging to any particular portfolio which are
available for distribution. Shareholders of the Portfolio are entitled to
participate equally in the net distributable assets of the portfolio on
liquidation. Holders of all outstanding Shares of the Portfolio will vote
together in the aggregate. Further, shareholders of all of the Fund's
portfolios, irrespective of class, will vote in the aggregate and not separately
on a portfolio-by-portfolio basis, except as otherwise required by law or when
the Board of Directors determines that the matter to be voted upon affects only
the interests of the shareholders of a particular portfolio or class of shares.
Rule 18f-2 under the 1940 Act provides that any matter required to be submitted
to the holders of the outstanding voting securities of a "series" investment
company such as the Fund shall not be deemed to have been effectively acted upon
unless approved by the holders of a majority of the outstanding shares of each
series (portfolio) affected by the matter. A portfolio is considered to be
affected by a matter unless it is clear that the interests of each portfolio in
the matter are identical or that the matter does not affect any interest of the
portfolio. Under the Rule, the approval of an investment advisory or
sub-advisory agreement, the approval of a Rule 12b-1 distribution plan or any
change in a fundamental investment objective or investment policy would be
effectively acted upon with respect to a portfolio only if approved by a
majority of the outstanding shares of that Portfolio. However, the Rule also
provides that the ratification of the appointment of independent auditors, the
approval of principal underwriting contracts, and the election of directors may
be effectively acted upon by shareholders of the Fund's portfolios voting
without regard to portfolio or class.

          Shares in the Portfolio will be issued without certificates.

                     ADDITIONAL INFORMATION CONCERNING TAXES

                  The Portfolio intends to qualify as a regulated investment
company under Subchapter M of the Internal Revenue Code, and to distribute out
its income to shareholders each year, so that the Portfolio itself generally
will be relieved of federal income and excise taxes. If the Portfolio were to
fail to so qualify: (1) the Portfolio would be taxed at regular corporate rates



                                      -14-
<PAGE>   38
without any deduction for distributions to shareholders; and (2) shareholders
would be taxed as if they received ordinary dividends, although corporate
shareholders could be eligible for the dividends received deduction.

                             MANAGEMENT OF THE FUND

DIRECTORS AND OFFICERS

                  The directors and executive officers of the Fund, their
addresses, ages, principal occupations during the past five years, and other
affiliations are as follows:

<TABLE>
<CAPTION>
                                                                     Principal Occupations
                                            Position with            During Past 5 years
Name and Address                            the Fund                 and Other Affiliations
- ----------------                            --------                 ----------------------
<S>                                         <C>                      <C> 
Jerry V. Woodham*                           Chairman of              Treasurer, St. Louis University, August 1996 to present; 
St. Louis University                        the Board;               Treasurer, Washington University, 1981 to 1995
3500 Lindell                                President and            
Fitzgerald Hall                             Director                 
St. Louis, MO  63131                                                 
Age:  54

Robert M. Cox, Jr.                          Director                 Senior Vice President and Advisory Director, Emerson
Emerson Electric Co.                                                 Electric Co. since November 1990.
8000 W. Florissant Ave.                                               
P.O. Box 4100                                                        
St. Louis, MO  63136-8506
Age:  52

Joseph J. Hunt                              Director                 General Vice-President International Association of
Iron Workers District                                                Bridge, Structural and Ornamental Iron Workers (International
Council                                                              Labor Union), January 1994 to present; General Organizer,
3544 Watson Road                                                     International Association of Bridge, Structural and Ornamental
 St. Louis, MO  63139                                                Iron Workers, September 1983 to December 1993. 
Age:  55                                                                
                                                                       
                                                                       
</TABLE>

- ------------------------

*   Mr. Woodham is an "interested person" of the Fund as defined in the 1940
    Act.




                                      -15-
<PAGE>   39
<TABLE>
<CAPTION>
                                                                        Principal Occupations
                                            Position with               During Past 5 years
Name and Address                              the Fund                   and Other Affiliations
- ----------------                              --------                   ----------------------
<S>                                         <C>                        <C> 
James C. Jacobsen                           Director                   Director, Kellwood Company, (manufacturer of wearing apparel
Kellwood Company                                                       and camping softgoods)  since 1975; Vice Chairman, Kellwood
600 Kellwood Parkway                                                   Company since May 1989. 
Chesterfield, MO  63017
Age:  52                                       
                                      
Donald E. Brandt                            Director                   Senior Vice President, Finance and Corporate Services, Union
Union Electric Company                                                 Electric Company (electric utility company); Director,
P.O. Box 66149                                                         Huntco, Inc. (intermediate steel processors).
St. Louis, MO  63166                      
Age:  43                                  
                                          
Patrick J. Moore                            Director                   Vice President & Chief Financial Officer since 1996 and Vice
Jefferson Smurfit                                                      President & General Manager, 1994-1996, of Industrial
  Corporation                                                          Packaging Division, Corporate Vice President & Treasurer,
8182 Maryland Avenue                                                   1993-1994, and Treasurer, 1992-1993, Jefferson Smurfit
St. Louis, MO  63105                                                   Corporation (paper, paperboard and packaging).
Age:  43                                  
                                          
Ronald D. Winney*                           Director and               Treasurer, Ralston Purina Company Since 1985.
Ralston Purina Company                      Treasurer 
Checkerboard Square                         
St. Louis, MO  63164                      
Age:  55                                  
                                          
W. Bruce McConnel, III*                     Secretary                  Partner of the law firm of Drinker Biddle & Reath LLP,
Suite 1100                                                             Philadelphia, Pennsylvania Since 1977.
1345 Chestnut Street                      
Philadelphia, PA  19107                   
Age:  55                                  
                                          
Walter B. Grimm*                            Vice President and         Employee of BISYS Fund Services.
3435 Stelzer Road                           Assistant Treasurer
Columbus, OH  43219                       
Age:  52                                  
                                          
David Bunstine*                             Assistant Secretary        Employee of BISYS Fund Services.
3435 Stelzer Road                         
Columbus, OH  43219                       
Age:  32                                  
</TABLE>
                                          
                                    

- ------------------------
*  Messrs. Grimm, Winney, McConnel and Bunstine are "interested persons" of the
   Fund as defined in the 1940 Act.



                                      -16-
<PAGE>   40
                  Each Director receives an annual fee of $10,000 plus
reimbursement of expenses incurred as a Director. The Chairman of the Board and
President of the Fund receives an additional annual fee of $5,000 for his
services in these capacities. For the fiscal year ended November 30, 1997, the
Fund paid or accrued for the account of its directors as a group, for services
in all capacities, a total of $65,000. Drinker Biddle & Reath LLP, of which Mr.
McConnel is a partner, receives legal fees as counsel to the Fund. As of the
date of this Statement of Additional Information, the directors and officers of
the Fund, as a group, owned less than 1% of the outstanding shares of the Fund.

                  The following chart provides certain information about the
fees received by the Fund's directors for their services as members of the Board
of Directors and committees thereof for the fiscal year ended November 30, 1997:

                                                            
<TABLE>
<CAPTION>
                                                                  PENSION OR                                
                                                                  RETIREMENT                                
                                            AGGREGATE          BENEFITS ACCRUED         TOTAL COMPENSATION  
                                        COMPENSATION FROM       AS PART OF FUND         FROM THE FUND AND   
   NAME OF DIRECTOR**                      THE FUND                EXPENSE              FUND COMPLEX*     
   ------------------                      --------                -------              -------------     
<S>                                      <C>                   <C>                      <C>  
Jerry V. Woodham                             $15,000                N/A                    $15,000
Robert M. Cox, Jr.                           $10,000                N/A                    $10,000
Joseph J. Hunt                               $10,000                N/A                    $10,000
James C. Jacobsen                            $10,000                N/A                    $10,000
Donald E. Kiernan***                          $5,000                N/A                     $5,000
Lyle L. Meyer***                              $5,000                N/A                     $5,000
Ronald D. Winney                             $10,000                N/A                    $10,000
</TABLE>



*        The "Fund Complex" consists solely of the Fund.

**       Messrs. Brandt and Moore were not directors of the Fund as of November
         30, 1997.

***      Messrs. Kiernan and Meyer resigned as directors of the Fund on April 3,
         1997 and September 17, 1997, respectively.

INVESTMENT ADVISORY, SUB-ADVISORY AND ADMINISTRATION AGREEMENTS

                 Mississippi Valley Advisors, Inc. (the "Adviser") serves as
investment adviser to the Portfolio. In addition, Conning Asset Management
Company ("Conning") serves as sub-adviser to the Portfolio. Pursuant to the
advisory and sub-advisory agreements, the Adviser and Conning have agreed to
provide investment advisory and sub-investment advisory services, respectively,
as described in the Portfolio's Prospectus. The Adviser and Conning have agreed
to pay all expenses incurred by them in 




                                      -17-
<PAGE>   41
connection with their activities under their respective agreements other than
the cost of securities, including brokerage commissions, if any, purchased for
the Portfolio.

                 The investment advisory agreement and sub-advisory agreement
provide that the Adviser and Conning, respectively, shall not be liable for any
error of judgment or mistake of law or for any loss suffered in connection with
the performance of their respective agreements, except a loss resulting from a
breach of fiduciary duty with respect to the receipt of compensation for
services or a loss resulting from willful misfeasance, bad faith or gross
negligence in the performance of their duties or from reckless disregard by them
of their duties and obligations thereunder.

                 Under its administration agreement with the Fund, BISYS Fund
Services Ohio, Inc. (the "Administrator") serves as administrator. The
Administrator has agreed to maintain office facilities for the Portfolio,
furnish the Portfolio with statistical and research data, clerical, accounting,
and certain bookkeeping services, stationery and office supplies, and certain
other services required by the Portfolio, and to compute the net asset value and
net income of the Portfolio. The Administrator prepares annual and semi-annual
reports to the SEC on Form N-SAR, compiles data for and prepares federal and
state tax returns and required tax filings other than those required to be made
by the Fund's custodian and transfer agent, prepares the Fund's compliance
filings with state securities commissions, maintains the registration or
qualification of Shares for sale under the securities laws of any state in which
the Fund's Shares shall be registered, assists in the preparation of annual and
semi-annual reports to shareholders of record, participates in the periodic
updating of the Fund's Registration Statement, prepares and assists in the
timely filing of notices to the SEC required pursuant to Rule 24f-2 under the
1940 Act, arranges for and bears the cost of processing Share purchase, exchange
and redemption orders, keeps and maintains the Portfolio's financial accounts
and records including calculation of daily expense accruals, monitors compliance
procedures for the Portfolio with the Portfolio's investment objective, policies
and limitations, tax matters, and applicable laws and regulations, and generally
assists in all aspects of the Portfolio's operations. The Administrator bears
all expenses in connection with the performance of its services.

                  From time to time, the Adviser, Conning and the Administrator
may voluntarily waive a portion or all of their respective fees otherwise
payable to them with respect to the Portfolio in order to increase the net
income available for distribution to shareholders.

CUSTODIAN AND TRANSFER AGENT

                  Mercantile Bank National Association is Custodian of the
Portfolio's assets pursuant to a Custodian Agreement. Under the Custodian
Agreement, the Custodian has agreed to (i) maintain a separate account or
accounts in the name of the Portfolio; (ii) receive and disburse money on behalf
of the Portfolio; (iii) collect and receive all income and other payments and
distributions on account of the Portfolio's portfolio securities; (iv) respond
to correspondence relating to its duties; and (v) make periodic reports to the
Fund's Board of Directors concerning the operations of the Portfolio. The
Custodian may, at its own expense, open and maintain a custody account or
accounts on behalf of the Portfolio with other banks or trust companies,
provided that the Custodian shall remain liable for the performance of all of
its custodial duties 



                                      -18-
<PAGE>   42
under the Custodian Agreement, notwithstanding any delegation. The Custodian is
authorized to select one or more banks or trust companies to serve as
sub-custodian on behalf of the Portfolio, provided that the Custodian shall
remain responsible for the performance of all of its duties under the Custodian
Agreement and shall hold the Fund harmless from the acts and omissions of any
bank or trust company serving as sub-custodian.

                  In the opinion of the staff of the SEC, since the Custodian is
an affiliate of the investment adviser, the Fund and the Custodian are subject
to the requirements of Rule 17f-2 under the 1940 Act. Accordingly the Fund and
the Custodian intend to comply with the requirements of such rule.

                  Pursuant to the Custodian Agreement with the Fund, the
Portfolio pays the Custodian an annual fee. For the Portfolio this fee is paid
monthly and calculated daily at the rate of $.125 for each $1,000 of the
Portfolio's average daily net assets.

                  BISYS Fund Services Ohio, Inc. also serves as the Fund's
transfer agent and dividend disbursing agent (in those capacities, the "Transfer
Agent") pursuant to a Transfer Agency Agreement. Under the Agreement, the
Transfer Agent has agreed to (i) process shareholder purchase and redemption
orders; (ii) maintain shareholder records for each of the Portfolio's
shareholders; (iii) process transfers and exchanges of Shares of the Portfolio;
(iv) issue periodic statements for the Portfolio's shareholders; (v) process
dividend payments and reinvestments; (vi) assist in the mailing of shareholder
reports and proxy solicitation materials; and (vii) make periodic reports to the
Fund's Board of Directors concerning the operations of the Portfolio.

SHAREHOLDER SERVICES PLAN

                  As described in the Prospectus, the Fund has adopted a
Shareholder Services Plan (the "Plan") with respect to the Portfolio. Any
material amendment to the Plan or arrangements with Service Organizations (which
may include affiliates of the Fund's Adviser and Sub-Adviser) must be approved
by a majority of the Board of Directors. Pursuant to the Plan, the Fund may
enter into Servicing Agreements with broker-dealers and other organizations
("Servicing Agreements") that purchase Shares of the Portfolio. The Servicing
Agreements provide that the Servicing Organizations will render certain
shareholder liaison and/or administrative support services to their customers
who are the record or beneficial owners of Portfolio Shares. Services provided
pursuant to the Servicing Agreements may include such services as providing
information periodically to customers showing their positions in Shares and
monitoring services for their customers who have invested in Shares including
the operation of telephone lines for daily quotations of return information.

                  OTHER PLAN INFORMATION. The Board of Directors has approved
the Plan and its respective arrangements with Service Organizations based on
information provided by the Fund's service contractors that there is a
reasonable likelihood that the Plan and arrangements will benefit the Portfolio
and its shareholders. Pursuant to the Plan, the Board of Directors reviews, at
least quarterly, a written report of the amounts of servicing fees expended
pursuant to the Plan and the purposes for which the expenditures were made.



                                      -19-
<PAGE>   43
                  Depending upon the terms governing the particular customer
accounts, Service Organizations and other institutions may also charge their
customers directly for cash management and other services provided in connection
with the accounts, including, for example, account maintenance fees,
compensating balance requirements, or fees based upon account transactions,
assets, or income. An investor should therefore read the Prospectus and this
Statement of Additional Information in light of the terms of his or her account
with a Service Organization, or other institution before purchasing Shares of
the Portfolio.

REGULATORY MATTERS

         Banking laws and regulations currently prohibit a bank holding company
registered under the Federal Bank Holding Company Act of 1956 or any affiliate
thereof from sponsoring, organizing, or controlling the Shares of a registered,
open-end investment company continuously engaged in the issuance of its Shares,
and prohibit banks generally from issuing, underwriting, selling, or
distributing securities such as Shares of the Portfolio. Such banking laws and
regulations do not prohibit such a holding company or affiliate, or banks, from
acting as investment adviser, transfer agent, or custodian to such an investment
company, or from purchasing Shares of such a company as agent for and upon the
order of customers. Mercantile Bank, the Adviser, Service Organizations that are
banks or bank affiliates, and broker-dealers that are bank affiliates are
subject to such laws and regulations, but believe they may perform the services
for the Portfolio contemplated by its agreement, this Prospectus and the
Statement of Additional Information without violating applicable banking laws
and regulations. In addition, state securities laws on this issue may differ
from the interpretation of federal law expressed herein and banks and financial
institutions may be required to register as dealers pursuant to state law.

         Should future legislative, judicial, or administrative action prohibit
or restrict the activities of such companies in connection with the provision of
services on behalf of the Portfolio and the shareholders, the Fund might be
required to alter materially or discontinue its arrangements with such companies
and change its method of operation. It is not expected that investors would
suffer any adverse financial consequences as a result of any of these
occurrences.

         If current restrictions preventing a bank from legally sponsoring,
organizing, controlling, or distributing Shares of an investment company were
relaxed, Mercantile Bank National Association, or an affiliate of Mercantile
Bank National Association, would consider the possibility of offering to perform
additional services for the Portfolio. It is not possible, of course, to predict
whether or in what form such legislation might be enacted or the terms upon
which Mercantile Bank National Association, or such an affiliate, might offer to
provide such services.

         Conflict of interest restrictions may apply to the receipt of
compensation paid pursuant to a Servicing Agreement by the Portfolio to a
financial intermediary in connection with the investment of fiduciary funds in
the Portfolio. Institutions, including banks regulated by the Comptroller of the
Currency and investment advisers and other money managers subject to the




                                      -20-
<PAGE>   44
jurisdiction of the SEC, the Department of Labor or state securities
commissions, should consult legal counsel before entering into Servicing
Agreements.

                              INDEPENDENT AUDITORS


                  KPMG Peat Marwick LLP, certified public accountants, with
offices at Two Nationwide Plaza, Columbus, Ohio 43215, serves as independent
auditors for the Fund for the fiscal year ended November 30, 1998. KPMG Peat
Marwick LLP performs an annual audit of the Fund's financial statements. Reports
of its activities are provided to the Fund's Board of Directors.


                                     COUNSEL

                  Drinker Biddle & Reath LLP (of which W. Bruce McConnel, III,
Secretary of the Fund, is a partner), Suite 1100, 1345 Chestnut Street,
Philadelphia, Pennsylvania 19107-3496, is counsel to the Fund and will pass upon
certain legal matters on its behalf.


                                  MISCELLANEOUS

                   As of October 28, 1998, Mercantile held of record
         99.995% and 16.933% of the outstanding Institutional and Trust shares,
         respectively, in the Treasury Money Market Portfolio; 89.170% and
         34.240% of the outstanding Institutional and Trust shares,
         respectively, in the Money Market Portfolio; 77.064% of the outstanding
         Trust shares in the Tax-Exempt Money Market Portfolio; 93.989% and
         95.694% of the outstanding Institutional and Trust shares,
         respectively, in the U.S. Government Securities Portfolio; 99.896% and
         98.252% of the outstanding Institutional and Trust shares,
         respectively, in the Intermediate Corporate Bond Portfolio; 96.378% and
         98.886% of the outstanding Institutional and Trust shares,
         respectively, in the Government & Corporate Bond Portfolio; 99.982% and
         97.342% of the outstanding Institutional and Trust shares,
         respectively, in the Bond Index Portfolio; 97.366% of the outstanding
         Trust shares in the Short-Intermediate Municipal Portfolio; 97.817% of
         the outstanding Trust shares in the Missouri Tax-Exempt Bond Portfolio;
         99.401% of the outstanding Trust shares in the National Municipal Bond
         Portfolio; 96.818% and 95.321% of the outstanding Institutional and
         Trust shares, respectively, in the Growth & Income Equity Portfolio;
         98.079% and 62.317% of the outstanding Institutional and Trust shares,
         respectively, in the Small Cap Equity Portfolio; 95.130% and 92.366% of
         the outstanding Institutional and Trust shares, respectively, in the
         International Equity Portfolio; 89.967% of the outstanding Trust shares
         in the Equity Income Portfolio; 99.999% of the Trust shares in the
         Equity Index Portfolio; 92.297% and 99.964% of the outstanding
         Institutional and Trust shares, respectively, in the Balanced
         Portfolio, and 99.999% and 97.912% of the outstanding Institutional and
         Trust shares, respectively, in the Growth Equity Portfolio, as
         fiduciary or agent on behalf of its customers. Mercantile is a wholly



                                      -21-
<PAGE>   45
         owned subsidiary of Mercantile Bancorporation Inc., a Missouri
         corporation. Under the 1940 Act, Mercantile may be deemed to be a
         controlling person of the Fund.

                           As of the same date, the following institutions also
         owned of record 5% or more of the Treasury Money Market Portfolio's
         outstanding shares as fiduciary or agent on behalf of their customers:
         Trust Shares - BISYS Fund Services, FBO Mercantile EOD Sweep, Attn:
         Mike Bryan, 3435 Stelzer Road, Columbus, OH 43219 (26.318%); Mercantile
         Bank NA Trust, Trust Securities Unit 17-1, Attn: Dede Clark, PO Box 387
         Main Post Office, St Louis, MO 63166-0000 (16.933%); Hare & Co.,
         Stif/Master Note, The Bank of New York, Attn: Paul Madden, One Wall
         Street 2nd Floor, New York, NY 10286 (36.065%); Flefco, PO Box 19264,
         Springfield, IL 62794-9264 (7.483%); Investor A Shares National
         Financial Services Corp., For the Benefit of Our Customers, 1 World
         Financial Center, 200 Liberty Street, 5th Floor, New York, NY 10281
         (96.229%); Institutional Shares - Mercantile Bank of St. Louis, N.A.,
         Attn: Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0000, (99.995%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Money Market Portfolio's outstanding
         shares as fiduciary or agent on behalf of their customers: Trust Shares
         - Pacific Century Trust, 741 Mutual Fund Accounting, P.O. Box 3170,
         Honolulu, HI 96802-3170 (6.064%); BISYS Fund Services, FBO Mercantile
         EOD Sweep, Attn: Mike Bryan, 3435 Stelzer Road, Columbus, OH 43219
         (51.243%); Mercantile Bank, N.A. Trust, Trust Securities Unit 17-1,
         Attn: Dede Clark, P.O. Box 387 Main Post Office, St. Louis, MO
         631666-0000 (34.240%); Investor A Shares - National Financial Services
         Corp., For the Benefit of Our Customers, 1 World Financial Center, 200
         Liberty Street, 5th Floor, New York, NY 10281 (92.412%); Investor B
         Shares - Mercantile Bank of St. Louis, NA Custodian Pheba A.
         Steinmeyer, IRA, 28413 Polk Dr., Rocky Mt., MO 65072-9042 (5.947%);
         Alberta Buenemann and Ernie W. Buenemann Trust, Alberta Buenemann
         Revocable Living Trust DTD 08-30-91, 1649 Sand Run Road, Troy, MO 63379
         (8.016%); Homer R. Turner and Edna M. Turner Trust, Edna M. Turner
         Trust DTD 04-17-90, 33409 E. Pink Hill Rd., Grain Valley, MO 64029
         (13.438%); Mercantile Bank of St Louis, NA Cust, John E. Hill, IRA, 806
         Bitterfield Dr., Ballwin, MO 63011 (6.056%); Mercantile Bank of St
         Louis, NA Cust, Sandra L. Hill, IRA, 806 Bitterfield Dr., Ballwin, MO
         63011 (6.056%); Institutional Shares - Mercantile Bank of St. Louis,
         N.A., Attn: Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0000 (83.843%); Mercantile Bank, Expediter Daily Valuation
         Account, Attn: Institutional Retirement Tram 16-2, P.O. Box 387, St
         Louis, MO 63166 (5.327%); RIBAT & Co., 230 18th St., P.O. Box 4870,
         Rock Island, IL 61204-4870 (7.184%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Tax-Exempt Money Market Portfolio's
         outstanding shares as fiduciary or agent on behalf of their customers:
         Trust Shares - BISYS Fund Services, FBO Mercantile EOD Sweep, Attn:
         Mike Bryan, 3435 Stelzer Road, Columbus, OH 43219 (20.315%); Mercantile
         Bank N.A. Trust, Trust Securities Unit 17-1, Attn: 



                                      -22-
<PAGE>   46
         Dede Clark, P.O. Box 387 Main Post Office, St. Louis, MO 63166-0000
         (77.064%); Investor A Shares - National Financial Services Corp., For
         the Benefit of Our Customers, 1 World Financial Center, 200 Liberty
         Street, 5th Floor, New York, NY 10281 (95.875%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the U.S. Government Securities
         Portfolio's outstanding shares as fiduciary or agent on behalf of their
         customers: Trust Shares - Locust & Company, Mercantile Bank, St. Louis,
         N.A., Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0387 (37.129%); Olive & Company, Mercantile Bank of St. Louis,
         N.A., Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0387 (58.565%); Investor A Shares - Mercantile Bank of St. Louis,
         NA Custodian Edmund C. Albrecht, Jr., IRA, 236 Carlyle Lake Dr., St.
         Louis, MO 63141 (7.230%); Investor B Shares - Mercantile Bank of St
         Louis, NA Cust, Richard Dell Woods, SEP IRA, 3114 Pickett Rd, St
         Joseph, MO 64503 (10.481%); Mercantile Bank of St Louis, NA Cust,
         Evelyn Joan Sutton, IRA, 510 N Main Cross, Bowling Green, MO 63334
         (6.848%); NFSC FEBO M22-038326, NFSC FMTC IRA, FBO Lynette A. Broeg, 60
         Frontenac Dr, St Louis, MO 63131 (7.579%); NFSC FEBO M22-038563, NFSC
         FMTC IRA, FBO Betty J. Kolseth, 300 No 4th Apt 2009, St Louis, MO 63102
         (9.452%); NFSC FEBO M26-037249, NFSC FMTC IRA, FBO Marvin R. Zielsdorf,
         3625 NE Wabash, Topeka, KS 66617 (5.145%); Stanley Markenson and
         Shirley J. Markenson TRST, Markenson Rev Trust, DTD 5/14/92, 362 Hibler
         Ct., Creve Coevr, MO 63141 (5.137%); Charlie J. Vancil, 3073 Valley
         Dr., Festus, MO 63028 (5.697%); NFSC FEBO M26-044865, June M Swift, Tod
         William D Smith, Robert M Swift, Gwynneth A Mejia, 2823 Seneca, St
         Joseph, MO 64507 (10.800%); NFSC FEBO M26-945293, NFSC FMTC IRA
         Rollover, FBO Charlene V. Brunk, 17825 Hwy. 21, St. Joseph, MO 64505
         (21.814%); Institutional Shares - Locust & Company, Mercantile Bank of
         St. Louis, N.A., Attn: Trust Securities Unit 17-1, P.O. Box 387, St.
         Louis, MO 63166-0000 (93.989%); Mercantile Bank, Expediter Daily
         Valuation Account, ATTN Institutional Retirement Tram 16-2, P.O. Box
         387, St. Louis, MO 63166 (5.952%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Intermediate Corporate Bond
         Portfolio's outstanding shares as fiduciary or agent on behalf of their
         customers: Trust Shares Locust & Company, Mercantile Bank, St. Louis,
         N.A., Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0387 (7.490%); Olive & Company, Mercantile Bank, St. Louis, N.A.,
         Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387
         (90.762%); Investor A Shares-Jill Larson, 10835 Autillo Way, San Diego,
         CA 92127 (6.589%); George Gregory Timmons, 1332 E. Desert Cv., Phoenix,
         AZ 85020 (6.589%); Betty Jane Eckhart, Trust Betty Jane Eckhart Trust
         U/A DTD 04-19-82, 28265 Beach Rd., Sarcoxie, MO 64862 (24.015%); Lynn
         C. Prescott, Trst Lynn C. Prescott Trust, UAD 8-30-90, 4180 Rincon
         Circle, Palo Alto, CA 94306-3138 (13.218%); NFSC FEBO M22-830925,
         Sandra A. Smith, Charles W. Smith, 6726 Vermont, St. Louis, MO 63111,
         (7.768%); Mercantile Bank, St. Louis, Custodian, Douglas A. Tabachik,
         Rollover IRA, 15327 Thistebriar Ct., Chesterfield, MO 63017-



                                      -23-
<PAGE>   47
         0000 (13.794%); Alice Ann Jones, 213 S. Clay #2-S, Kirkwood, MO 63122
         (10.150%); Institutional Shares - Locust & Company, Mercantile Bank,
         St. Louis, N.A., Trust Securities Unit 17-1, P.O. Box 387, St. Louis,
         MO 63166-0387 (99.896%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Bond Index Portfolio's outstanding
         shares as fiduciary or agent on behalf of their customers: Trust Shares
         - Olive & Company, Mercantile Bank of St. Louis, N.A., Trust Securities
         Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (97.342%); Investor A
         Shares - Thomas Young Trust, Beatrice Young Trust DTD 8-15-69 A/C
         M27-997382, 9204 Roger Lee Lane, St. Louis, MO 63126 (5.345%); Gerhard
         Radi, 2965 Berwick Ct., St. Charles, MO 63303 (6.914%); Gary C. Nelling
         and Helen L. Nelling, JTWROS, 850 Warder Ave., St. Louis, MO 63130
         (6.458%); NFSC FEBO M27-901393, Judith T Betz, John N. Betz, 6539
         Pernod, St Louis, MO 63139 (15.610%); NFSC FEBO M22-034134, NFSC FMTC
         IRA SEPP, FBO Ronald E. Ryan, 875 Glen Elm Dr., St. Louis, MO 63122,
         (16.047%); Dennis G Vesper, and Julie A Vesper, JTWROS, 1300 Bellevue
         Blvd, N, Bellevue, NE 68005 (14.875%); George R Swartz, and Donna K
         Swartz, Trst George & Donna Swartz Trust, DTD 5-19-94, 2203 Marian Pl,
         Venice, CA 90291, (14.874%); NFSC FEBO, M22-866377, Stanley E.
         Anderson, Eunice I. Anderson, 3501 Arsenal St, St Louis, MO 63118-2003
         (5.975%); Institutional Shares - Locust & Company, Mercantile Bank of
         St. Louis, N.A., Trust Securities Units 17-1, P.O. Box 387, St. Louis,
         MO 63166-0387 (99.982%).

         As of the same date, the following institutions also owned of record 5%
         or more of the Government & Corporate Bond Portfolio's outstanding
         shares as fiduciary or agent on behalf of their customers: Trust Shares
         - Locust & Company, Mercantile Bank of St. Louis, N.A., Trust
         Securities Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (42.181%);
         Olive & Company, Mercantile Bank of St. Louis, N.A., Trust Securities
         Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (56.705%); Investor A
         Shares - Mercantile Bank of St. Louis, NA Custodian Eugene F. Tucker,
         IRA Rollover, 70 Berkshire, St. Louis, MO 63117 (6.013%); Mercantile
         Bank of St. Louis, Custodian, Glenn J. Holler, IRA Rollover, 226
         Grimsley Sta., St. Louis, MO 63129 (5.233%); Investor B Shares -
         Mercantile Bank of St. Louis, NA Cust, Gerald C. Pasch, IRA, 2817
         Duncan, St. Joseph, MO 64507 (5.042%); NFSC FEBO M22-050563, Carl S.
         Jackson, Steven J. Jackson, 3016 Sunset Drive, Apt. B, Carbondale, IL
         62901 (5.683%); Homer R. Turner and Edna M. Turner Trust, Edna M.
         Turner Trust DTD 04-17-90, 33409 E. Pink Hill Road, Grain Valley, MO
         64029 (7.242%); NFSC FEBO M25-022500, NFSC FMTC IRA, FBO Jackie L
         Stricklin, 10 Willowood Rd, North Little Rock, AR 72117 (9.738%);
         Institutional Shares - Locust & Company, Mercantile Bank of St. Louis,
         N.A., Attn: Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0000 (85.748%); Mercantile Bank, Expediter Daily Valuation
         Account, Attn: Institutional Retirement Tram 16-2, P.O. Box 387, St.
         Louis, MO 63166 (10.630%).



                                      -24-
<PAGE>   48
                           As of the same date, the following institutions also
         owned of record 5% or more of the Short-Intermediate Municipal Bond
         Portfolio's outstanding shares as fiduciary or agent on behalf of their
         customers: Trust Shares - Olive & Company, Attn: Trust Securities Unit
         17-1, P.O. Box 387, St. Louis, MO 63166-0387 (97.366%); Investor A
         Shares - James Sutten, P.O. Box 2465, Inverness, FL 34451-2465
         (8.205%); National Financial Services Corp., FBO Bettina H. Clouse, 200
         Liberty St. Fifth Floor, New York, NY 10281 (91.711%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Missouri Tax-Exempt Bond Portfolio's
         outstanding shares as fiduciary or agent on behalf of their customers:
         Trust Shares Locust & Company, Mercantile Bank of St. Louis, N.A.,
         Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387
         (6.419%); Olive & Company, Mercantile Bank of St. Louis, N.A., Trust
         Securities Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (91.398%);
         Investor B Shares - NFSC FEBO M22-901580, Alban C Hurlebaus, Catherine
         L Bruketa, 6144 S Grand, St Louis, MO 63111 (5.059%); NFSC FEBO
         M22-402761, Kenneth Russell, Helen Russell, Trustee, Helen Russell
         Revocable Trust, 320 Lake Apollo, Hannibal, MO 63401 (6.785%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the National Municipal Bond Portfolio's
         outstanding shares as fiduciary or agent on behalf of their customers:
         Trust Shares Olive & Company, Mercantile Bank of St. Louis, N.A., Trust
         Securities Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (99.401%);
         Investor A Shares - Joe N. Basore TRST, Joe N. Basore Trust, DTD
         12/23/97, 311 Town Ctr., W. Bella Vista, AR 72714 (39.934%); Ann W.
         Basore TRST, Ann W. Basore Trust, DTD 12/23/97, 311 Town Ctr., W. Bella
         Vista, AR 72714 (39.934%); Investor B Shares - NFSC FEBO M22-988642,
         Ronald E. Ryan, Marian H. Ryan, 875 Glen Elm Drive, St. Louis, MO 63122
         (8.581%); NFSC FEBO M22-967220, Casatta Revocable Living Trust, Raymond
         H. Casatta U/A 10-06-87, 5658 Tholozan, St. Louis, MO 65109 (12.307%);
         NFSC FEBO M22-961817, Gladine Coleman, Andrew B. Coleman, 5945
         Loughborough, St. Louis, MO 63109 (8.502%); NFSC FEBO M22-423394, Nancy
         M. Prewitt, TOD, 16 Toussaint, O'Fallon, MO 63366 (7.224%); NFSC FEBO
         M22-479039, Constance M. McManus, TOD, 4271 Wyoming, St. Louis, MO
         63116 (14.626%); NFSC M22-473782, Roland Charles Oesterle, TOD, 2849
         Missouri, St. Louis, MO 63118 (6.115%); NFSC FEBO M22-848700, Jessica
         Schumacher, Newell D. Timmermeier, 3204 Edwards St., Alton, IL 62002
         (8.052%); NFSC FEBO M22-841897, Beatrice J. Teter, 5201 Asbury Ave.
         Apt. 232, Godfrey, IL 62035 (7.833%); NFSC FEBO M22-841900, Leona B.
         Teter, 5201 Asbury Ave. Apt. 232, Godfrey, IL 62035  (7.833%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Equity Income Portfolio's outstanding
         shares as fiduciary or agent on behalf of their customers: Trust Shares
         - Olive & Company, Mercantile Bank of St. Louis, N.A., Trust Securities
         Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (89.967%); Norwest
         Bank Minnesota NA, Trst National By-Products Inc P/S Plan, 



                                      -25-
<PAGE>   49
         c/o Mutual Fund Processing, PO Box 1533, Minneapolis, MN 55480-1533
         (5.812%); Institutional Shares - CoreLink Financial Inc., P.O. Box
         4054, Concord, CA 94524 (95.925%); Investor A Shares - Mori & Co, c/o
         Commerce Bank, Attn: Mutual Fund Operations, PO Box 13366/TBTS-2,
         Kansas City, MO 64199-3366 (13.026%); NFSC Febo M22-898880 William
         Oliver Shillington, II, Kim Shillington, 2917 N. Kristopher Bend, ST.
         Charles, MO 63126 (7.266%); Sandra Kungle Trust, Sandra Kungle Trust,
         139 Arrowhead Court, Boone, NC 28607 (10.567%); NFSC FEBO M27-901393,
         Judith T Betz, John N Betz, 6539 Pernod, St Louis, MO 63139 (6.126%);
         NFSC FEBO M22-406252, Thomas G. Smith, Francis T. Smith, Nichole T.
         Smith, 10214 Hobkirk Dr., St Louis, MO 63137 (6.105%); Investor B
         Shares - NFSC FEBO M22-979570, NFSC FMTC IRA Rollover FBO Kevin O.
         Webb, 702 Hudson Rd, ST. Louis, MO 63130 (5.247%); NFSC FEBO
         M24-914932, NFSC FMTC IRA Rollover, FBO Daniel L Bodensteiner, 515 2nd
         St, Evansdale, IA 50707 (8.829%); NFSC FEBO M22-858650, Frances M
         Lafata, 1302 Steamboat Ln Apt 2, Ballwin, MO 63011 (5.365%); NFSC FEBO
         M22-821691, Arlene T. Kleimeier TTEE, Arlene T. Kleimeier REV LIV TR, U
         A 10/16/98, 3033 Apt. 6, Florissant, MO 63033 (14.491%); NFSC FEBO
         M23-031925, Anne Lloyd DuPont, 3500 NE Kingwood Ct., Lees Summit, MO
         64064 (17.234%); NFSC FEBO M26-852155, Thelma P. Rhodes, TOD Ruby G.
         North, TOD Gladys Law, 1919 Mimosa, Springfield, MO 65804 (11.289%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Equity Index Portfolio's outstanding
         shares as fiduciary or agent on behalf of their customers: Trust Shares
         - Olive & Company, Mercantile Bank of St. Louis, N.A., Trust Securities
         Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (9.569%); Locust &
         Company, Mercantile Bank of St. Louis, N.A., Trust Securities Unit
         17-1, P.O. Box 387, St. Louis, MO 63166-0387 (90.430%); Investor A
         Shares - Mercantile Bank of St Louis, Custodian, Donald E Gaddy, IRA,
         PO Box 682-309 Cherry St, Colstrip, MT 59323-0000 (6.294%); NFSC FEBO
         M23-874612, NFSC FMTC IRA ROLLOVER, FBO Mary H. Hernandez, 1056 Merriam
         Lane, Kansas City, KS 66103 (7.877%); Institutional Shares - Locust &
         Company, Mercantile Bank St. Louis NA, Trust Securities Unit 17-1, P.O.
         Box 387, St. Louis, MO 63166-0387 (93.022%); Mercantile Bank, Expediter
         Daily Valuation Account, Attn: Institutional Retirement Tram 16-2, P.O.
         Box 387, St. Louis, MO 63166 (6.975%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Small Cap Equity Portfolio's
         outstanding shares as fiduciary or agent on behalf of their customers:
         Trust Shares - American Bar Endowment, 750 N. Lake Shore Dr., Chicago,
         IL 60611 (10.417%); Olive & Company, Mercantile Bank of St. Louis,
         N.A., Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0387 (15.542%); Locust & Company, Mercantile Bank of St. Louis,
         N.A., Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0387 (46.775%); State Street Bank & Trust Co., TRST Pioneer
         HI-BRED International Retirement Plan Trust, ATTN Chris Murphy, One
         Enterprise Dr., North Quincy, MA 02171 (6.484%); Bankers' Trust Co.,
         FBO Sheet Metal Local 36, Miss Van Arch FD 191719, Attn: Mike Bloebaun,
         648 Grassmere Park Road, Nashville, TN 37211 




                                      -26-
<PAGE>   50
         (8.147%); Investor A Shares - Strafe & Co, FBO RKFD PIPE/MVA, PO Box
         160, Westerville, OH 43230-0160 (7.116%); Institutional Shares - Locust
         & Company, Mercantile Bank of St. Louis, N.A., Attn: Trust Securities
         Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0000 (89.125%); Mercantile
         Bank, Expediter Daily Valuation Account, Attn: Institutional Retirement
         Tram 16-2, P.O. Box 387, St. Louis, MO 63166 (8.954%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the International Equity Portfolio's
         outstanding shares as fiduciary or agent on behalf of their customers:
         Trust Shares - Locust and Company, Attn: Trust Securities Unit 17-1,
         P.O. Box 387, St. Louis, MO 63166-0000 (44.957%); Olive & Company,
         Attn: Trust Securities Unit 17-1, P. O. Box 387, St. Louis, MO
         63166-0387 (47.409%); Investor A Shares - Frances Dakers, 200 E. 89th
         St. 28D, New York, NY 10128 (12.535%); Institutional Shares - Locust &
         Company, Attn: Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0000 (95.130%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Balanced Portfolio's outstanding
         share as fiduciary or agent on behalf of their customers: Trust Shares
         - Locust & Company, Mercantile Bank of St. Louis, N.A., Trust
         Securities Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (93.426%);
         Olive & Company, Mercantile Bank St Louis NA, Trust Securities Unit
         17-1, PO Box 387, St Louis, MO 63166-0387 (6.538%); Investor A Shares -
         Mercantile Bank of St. Louis, NA Custodian Robert W. Davis, Rollover
         IRA, 818 Broadway, Elsberry, MO 63343-1109 (5.709%); Investor B Shares
         - NFSC FEBO M26-044423, NFSC FMTC IRA, FBO Wayne Brunk, 17825 Highway
         71, St Joseph, MO 64505 (12.903%); Institutional Shares - Locust &
         Company, Mercantile Bank of St. Louis, N.A., Attn: Trust Securities
         Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0000 (79.137%); Mercantile
         Bank, Expediter Daily Valuation Account, Attn: Institutional Retirement
         Tram 16-2, P.O. Box 387, St. Louis, MO 63166 (13.160%); Corelink
         Financial Inc, PO Box 4054, Concord, CA 94524 (7.683%).

                           As of the same date, the following institutions also
         owned of record 5% or more of the Growth Equity Portfolio's outstanding
         shares as fiduciary or agent on behalf of their customers: Trust Shares
         - Olive & Company, Mercantile Bank of St. Louis, N.A., Trust Securities
         Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (85.047%); Locust &
         Company, Mercantile Bank of St. Louis, N.A., Trust Securities Unit
         17-1, P.O. Box 387, St. Louis, MO 63166-0387 (12.865%); Investor A
         Shares - NFSC FEBO M22-540196, Tiger Limited Partnership, 903 Claymark,
         ST. Louis, MO 63131 (9.205%); NFSC FEBO M22-478237, Bernard B. Birger,
         Trustee, Bernard B. Birger Revocable Living Trust U/A 5-25-76, 250
         Hilltop, Collinsville, IL 62234 (5.232%); NFSC FEBO M22-968030, NFSC
         FMTC IRA ROLLOVER, FBO Carl R. Stock, 4000 D Brittany Circle,
         Bridgeton, MO 63044 (9.974%); Investor B Shares - NFSC FEBO M24-914932,
         NFSC FMTC IRA Rollover, FBO Daniel L Bodensteiner, 515 2nd St,
         Evansdale, IA 50707 (12.734%); Mercantile Bank of St Louis, Custodian,
         Lonie J Neely, IRA, 1628 Meredith Dr, St Louis, MO 63125-2227 (5.152%);
         NFSC FEBO M22- 861596, Estle S. Smith III, Patti Bruce Smith, 2335




                                      -27-
<PAGE>   51
         Fairview Dr., Alton, IL 62002 (7.832%); NFSC FEBO M26-838560, NFSC FMTC
         IRA, FBO Terry L. Bliss, 215 W Lincoln , Lewistown, IL 61542 (5.073%);
         Institutional Shares - Locust & Company, Mercantile Bank of St. Louis,
         N.A., Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0387 (99.999%).

                           As of the same date, the following Institutions also
         owned of record 5% or more of the Growth & Income Equity Portfolio's
         outstanding shares as fiduciary or agent on behalf of their customers:
         Trust Shares - Locust & Company, Mercantile Bank of St. Louis, N.A.,
         Trust Securities Unit 17-1, P.O. 387, St. Louis, MO 63166-0387
         (52.463%); Olive & Company, Mercantile Bank of St. Louis, N.A., Trust
         Securities Unit 17-1, P.O. Box 387, St. Louis, MO 63166-0387 (42.858%);
         Institutional Shares - Locust & Company, Mercantile Bank of St. Louis,
         N.A., Attn: Trust Securities Unit 17-1, P.O. Box 387, St. Louis, MO
         63166-0000 (89.102%); Mercantile Bank, Expediter Daily Valuation
         Account, Attn: Institutional Retirement Tram 16-2, P.O. Box 387, St.
         Louis, MO 63166 (7.716%).

                           On the basis of information received from these
         institutions, the Fund believes that substantially all of the shares
         owned of record were also beneficially owned by these institutions
         because they possessed or shared voting or investment power with
         respect to such shares on behalf of their underlying accounts.




                                      -28-
<PAGE>   52
                                   APPENDIX A


COMMERCIAL PAPER RATINGS

                  A Standard & Poor's ("S&P") commercial paper rating is a
current assessment of the likelihood of timely payment of debt having an
original maturity of no more than 365 days. The following summarizes the rating
categories used by Standard and Poor's for commercial paper:

                  "A-1" - Obligations are rated in the highest category
indicating that the obligor's capacity to meet its financial commitment is
strong. Within this category, certain obligations are designated with a plus
sign (+). This indicates that the obligor's capacity to meet its financial
commitment on these obligations is extremely strong.

                  "A-2" - Obligations are somewhat more susceptible to the
adverse effects of changes in circumstances and economic conditions than
obligations rated "A-1". However, the obligor's capacity to meet its financial
commitment on the obligation is satisfactory.

                  "A-3" - Obligations exhibit 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.

                  "B" - Obligations are regarded as having significant
speculative characteristics. The obligor currently has the capacity to meet its
financial commitment on the obligation; however, it faces major ongoing
uncertainties which could lead to the obligor's inadequate capacity to meet its
financial commitment on the obligation.

                  "C" - Obligations are currently vulnerable to nonpayment and
are dependent on favorable business, financial, and economic conditions for the
obligor to meet its financial obligation.

                  "D" - Obligations are 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 S&P believes such
payments will be made during such grace period. The "D" rating will also be used
upon the filing of a bankruptcy petition or the taking of a similar action if
payments on an obligation are jeopardized.

                  Moody's commercial paper ratings are opinions of the ability
of issuers to repay punctually senior debt obligations not having an original
maturity in excess of one year, unless explicitly noted. The following
summarizes the rating categories used by Moody's for commercial paper:



                                      A-1
<PAGE>   53
                  "Prime-1" - Issuers (or supporting institutions) have a
superior ability for repayment of senior short-term debt 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 structure with
moderate reliance on debt and ample asset protection; broad margins in earnings
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.

                  "Prime-2" - Issuers (or supporting institutions) have a strong
ability for repayment of senior short-term debt 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.

                  "Prime-3" - Issuers (or supporting institutions) have an
acceptable ability for repayment of senior short-term debt obligations. The
effect of industry characteristics and market compositions may be more
pronounced. Variability in earnings and profitability may result in changes in
the level of debt protection measurements and may require relatively high
financial leverage. Adequate alternate liquidity is maintained.

                  "Not Prime" - Issuers do not fall within any of the Prime
rating categories.

                  The three rating categories of Duff & Phelps for investment
grade commercial paper and short-term debt are "D-1," "D-2" and "D-3." Duff &
Phelps employs three designations, "D-1+," "D-1" and "D-1-," within the highest
rating category. The following summarizes the rating categories used by Duff &
Phelps for commercial paper:

                  "D-1+" - Debt possesses the highest certainty of timely
payment. Short-term liquidity, including internal operating factors and/or
access to alternative sources of funds, is outstanding, and safety is just below
risk-free U.S. Treasury short-term obligations.

                  "D-1" - Debt possesses very high certainty of timely payment.
Liquidity factors are excellent and supported by good fundamental protection
factors. Risk factors are minor.

                  "D-1-" - Debt possesses high certainty of timely payment.
Liquidity factors are strong and supported by good fundamental protection
factors. Risk factors are very small.

                  "D-2" - Debt possesses good certainty of timely payment.
Liquidity factors and company fundamentals are sound. Although ongoing funding
needs may enlarge total financing requirements, access to capital markets is
good. Risk factors are small.

                  "D-3" - Debt possesses satisfactory liquidity and other
protection factors qualify issues as investment grade. Risk factors are larger
and subject to more variation. Nevertheless, timely payment is expected.




                                      A-2
<PAGE>   54
                  "D-4" - Debt possesses speculative investment characteristics.
Liquidity is not sufficient to insure against disruption in debt service.
Operating factors and market access may be subject to a high degree of
variation.

                  "D-5" - Issuer has failed to meet scheduled principal and/or
interest payments.

                  Fitch IBCA short-term ratings apply to debt obligations that
have time horizons of less than 12 months for most obligations, or up to three
years for U.S. public finance securities. The following summarizes the rating
categories used by Fitch IBCA for short-term obligations:

                  "F1" - Securities possess the highest credit quality. This
designation indicates the strongest capacity for timely payment of financial
commitments and may have an added "+" to denote any exceptionally strong credit
feature.

                  "F2" - Securities possess good credit quality. This
designation indicates a satisfactory capacity for timely payment of financial
commitments, but the margin of safety is not as great as in the case of
securities rated "F1".

                  "F3" - Securities possess fair credit quality. This
designation indicates that the capacity for timely payment of financial
commitments is adequate; however, near-term adverse changes could result in a
reduction to non-investment grade.

                  "B" - Securities possess speculative credit quality. this
designation indicates minimal capacity for timely payment of financial
commitments, plus vulnerability to near-term adverse changes in financial and
economic conditions.

                  "C" - Securities possess high default risk. This designation
indicates that the capacity for meeting financial commitments is solely reliant
upon a sustained, favorable business and economic environment.

                  "D" - Securities are in actual or imminent payment default.

                  Thomson BankWatch short-term ratings assess the likelihood of
an untimely payment of principal and interest of debt instruments with original
maturities of one year or less. The following summarizes the ratings used by
Thomson BankWatch:

                  "TBW-1" - This designation represents Thomson BankWatch's
highest category and indicates a very high likelihood that principal and
interest will be paid on a timely basis.

                  "TBW-2" - This designation represents Thomson BankWatch's
second-highest category and indicates that while the degree of safety regarding
timely repayment of principal and interest is strong, the relative degree of
safety is not as high as for issues rated "TBW-1."

                  "TBW-3" - This designation represents Thomson BankWatch's
lowest investment-grade category and indicates that while the obligation is more
susceptible to adverse 



                                      A-3
<PAGE>   55
developments (both internal and external) than those with higher ratings, the
capacity to service principal and interest in a timely fashion is considered
adequate.

                  "TBW-4" - This designation represents Thomson BankWatch's
lowest rating category and indicates that the obligation is regarded as
non-investment grade and therefore speculative.


CORPORATE AND MUNICIPAL LONG-TERM DEBT RATINGS

                  The following summarizes the ratings used by Standard & Poor's
for corporate and municipal debt:

                  "AAA" - An obligation rated "AAA" has the highest rating
assigned by Standard & Poor's. The obligor's capacity to meet its financial
commitment on the obligation is extremely strong.

                  "AA" - An obligation rated "AA" differs from the highest rated
obligations only in small degree. The obligor's capacity to meet its financial
commitment on the obligation is very strong.

                  "A" - An obligation rated "A" is somewhat more susceptible to
the adverse effects of changes in circumstances and economic conditions than
obligations in higher rated categories. However, the obligor's capacity to meet
its financial commitment on the obligation is still strong.

                  "BBB" - An obligation 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," "B," "CCC," "CC" and "C" - Debt is regarded as having
significant speculative characteristics. "BB" indicates the least degree of
speculation and "C" the highest. While such obligations will likely have some
quality and protective characteristics, these may be outweighed by large
uncertainties or major exposures to adverse conditions.

                  "BB" - Debt is less vulnerable to non-payment than other
speculative issues. However, it faces major ongoing uncertainties or exposure to
adverse business, financial or economic conditions which could lead to the
obligor's inadequate capacity to meet its financial commitment on the
obligation.

                  "B" - Debt is more vulnerable to non-payment than obligations
rated "BB", but the obligor currently has the capacity to meet its financial
commitment on the obligation. Adverse business, financial or economic conditions
will likely impair the obligor's capacity or willingness to meet its financial
commitment on the obligation.



                                      A-4
<PAGE>   56
                  "CCC" - Debt is currently vulnerable to non-payment, and is
dependent upon favorable business, financial and economic conditions for the
obligor to meet its financial commitment on the obligation. In the event of
adverse business, financial or economic conditions, the obligor is not likely to
have the capacity to meet its financial commitment on the obligation.

                  "CC" - An obligation rated "CC" is currently highly vulnerable
to non-payment.

                  "C" - The "C" rating may be used to cover a situation where a
bankruptcy petition has been filed or similar action has been taken, but
payments on this obligation are being continued.

                  "D" - An obligation rated "D" is in payment default. This
rating is used when payments on an obligation are not made on the date due, even
if the applicable grace period has not expired, unless S & P believes that such
payments will be made during such grace period. "D" rating is also 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" through "CCC"
may be modified by the addition of a plus or minus sign to show relative
standing within the major rating categories.

                  "r" - This rating is attached to highlight derivative, hybrid,
and certain other obligations that S & P believes may experience high volatility
or high variability in expected returns due to non-credit risks. Examples of
such obligations are: securities whose principal or interest return is indexed
to equities, commodities, or currencies; certain swaps and options; and
interest-only and principal-only mortgage securities. The absence of an "r"
symbol should not be taken as an indication that an obligation will exhibit no
volatility or variability in total return.

         The following summarizes the ratings used by Moody's for corporate and
municipal long-term debt:

                  "Aaa" - Bonds are judged to be of the best quality. They carry
the smallest degree of investment risk and are generally referred to as "gilt
edged." 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 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.



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<PAGE>   57
                  "A" - Bonds 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 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," "B," "Caa," "Ca," and "C" - Bonds that possess one of
these ratings provide questionable protection of interest and principal ("Ba"
indicates speculative elements; "B" indicates a general lack of characteristics
of desirable investment; "Caa" are of poor standing; "Ca" represents obligations
which are speculative in a high degree; and "C" represents the lowest rated
class of bonds). "Caa," "Ca" and "C" bonds may be in default.

                  Con. (---) - Bonds for which the security depends upon the
completion of some act or the fulfillment of some condition are rated
conditionally. These are bonds secured by (a) earnings of projects under
construction, (b) earnings of projects unseasoned in operation experience, (c)
rentals which begin when facilities are completed, or (d) payments to which some
other limiting condition attaches. Parenthetical rating denotes probable credit
stature upon completion of construction or elimination of basis of condition.

                  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.

                  The following summarizes the long-term debt ratings used by
Duff & Phelps for corporate and municipal long-term debt:

                  "AAA" - Debt is considered to be of the highest credit
quality. The risk factors are negligible, being only slightly more than for
risk-free U.S. Treasury debt.

                  "AA" - Debt is considered of high credit quality. Protection
factors are strong. Risk is modest but may vary slightly from time to time
because of economic conditions.

                  "A" - Debt possesses protection factors which are average but
adequate. However, risk factors are more variable and greater in periods of
economic stress.

                  "BBB" - Debt possesses below-average protection factors but
such protection factors are still considered sufficient for prudent investment.
Considerable variability in risk is present during economic cycles.


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                  "BB," "B," "CCC," "DD," and "DP" - Debt that possesses one of
these ratings is considered to be below investment grade. Although below
investment grade, debt rated "BB" is deemed likely to meet obligations when due.
Debt rated "B" possesses the risk that obligations will not be met when due.
Debt rated "CCC" is well below investment grade and has considerable uncertainty
as to timely payment of principal, interest or preferred dividends. Debt rated
"DD" is a defaulted debt obligation, and the rating "DP" represents preferred
stock with dividend arrearages.

                  To provide more detailed indications of credit quality, the
"AA," "A," "BBB," "BB" and "B" ratings may be modified by the addition of a plus
(+) or minus (-) sign to show relative standing within these major categories.

                  The following summarizes the ratings used by Fitch IBCA for
corporate and municipal bonds:

                  "AAA" - Bonds considered to be investment grade and of the
highest credit quality. These ratings denote the lowest expectation of
investment risk and are assigned only in case of exceptionally strong capacity
for timely payment of financial commitments. This capacity is very unlikely to
be adversely affected by foreseeable events.

                  "AA" - Bonds considered to be investment grade and of very
high credit quality. These ratings denote a very low expectation of investment
risk and indicate very strong capacity for timely payment of financial
commitments. This capacity is not significantly vulnerable to foreseeable
events.

                  "A" - Bonds considered to be investment grade and of high
credit quality. These ratings denote a low expectation of investment risk and
indicate strong capacity for timely payment of financial commitments. This
capacity may, nevertheless, be more vulnerable to adverse changes in
circumstances or in economic conditions than bonds with higher ratings.

                  "BBB" - Bonds considered to be investment grade and of good
credit quality. These ratings denote that there is currently a low expectation
of investment risk. The capacity for timely payment of financial commitments is
adequate, but adverse circumstances and in economic conditions are more likely
to impair this category.

                  "BB" - Bonds considered to be speculative. These ratings
indicate that there is a possibility of credit risk developing, particularly as
the result of adverse economic changes over time; however, business or financial
alternatives may be available to allow financial commitments to be met.
Securities rated in this category are not investment grade.

                  "B" - Bonds are considered highly speculative. these ratings
indicate that significant credit risk is present, but a limited margin of safety
remains. Financial commitments are currently being met; however, capacity for
continued payment is contingent upon a sustained, favorable business and
economic environment.


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<PAGE>   59
                  "CCC", "CC", "C" - Bonds have high default risk. Capacity for
meeting financial commitments is reliant upon sustained, favorable business or
economic developments. "CC" ratings indicate that default of some kind appears
probable, and "C" ratings signal imminent default.

                  "DDD," "DD" and "D" - Bonds are in default. Securities are not
meeting obligations and are extremely speculative. "DDD" designates the highest
potential for recovery on these securities, and "D" represents the lowest
potential for recovery.

                  To provide more detailed indications of credit quality, the
Fitch IBCA ratings from and including "AA" to "B" may be modified by the
addition of a plus (+) or minus (-) sign to show relative standing within these
major rating categories.

                  Thomson BankWatch assesses the likelihood of an untimely
repayment of principal or interest over the term to maturity of long term debt
and preferred stock which are issued by United States commercial banks, thrifts
and non-bank banks; non-United States banks; and broker-dealers. The following
summarizes the rating categories used by Thomson BankWatch for long-term debt
ratings:

                  "AAA" - This designation represents the highest category
assigned by Thomson BankWatch to long-term debt and indicates that the ability
to repay principal and interest on a timely basis is extremely high.

                  "AA" - This designation indicates a very strong ability to
repay principal and interest on a timely basis with limited incremental risk
compared to issues rated in the highest category.

                  "A" - This designation indicates that the ability to repay
principal and interest is strong. Issues rated "A" could be more vulnerable to
adverse developments (both internal and external) than obligations with higher
ratings.

                  "BBB" - This designation represents Thomson BankWatch's lowest
investment-grade category and indicates an acceptable capacity to repay
principal and interest. Issues rated "BBB" are, however, more vulnerable to
adverse developments (both internal and external) than obligations with higher
ratings.

                  "BB," "B," "CCC," and "CC," - These designations are assigned
by Thomson BankWatch to non-investment grade long-term debt. Such issues are
regarded as having speculative characteristics regarding the likelihood of
timely payment of principal and interest. "BB" indicates the lowest degree of
speculation and "CC" the highest degree of speculation.

                  "D" - This designation indicates that the long-term debt is in
default.


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<PAGE>   60
                  PLUS (+) OR MINUS (-) - The ratings from "AAA" through "CC"
may include a plus or minus sign designation which indicates where within the
respective category the issue is placed.


MUNICIPAL NOTE RATINGS

                  A Standard and Poor's rating reflects the liquidity concerns
and market access risks unique to notes due in three years or less. The
following summarizes the ratings used by Standard & Poor's Ratings Group for
municipal notes:

                  "SP-1" - The issuers of these municipal notes exhibit a strong
capacity to pay principal and interest. Those issues determined to possess very
strong characteristics are given a plus (+) designation.

                  "SP-2" - The issuers of these municipal notes exhibit
satisfactory capacity to pay principal and interest, with some vulnerability to
adverse financial and economic changes over the term of the notes.

                  "SP-3" - The issuers of these municipal notes exhibit
speculative capacity to pay principal and interest.

                  Moody's ratings for state and municipal notes and other
short-term loans are designated Moody's Investment Grade ("MIG") and variable
rate demand obligations are designated Variable Moody's Investment Grade
("VMIG"). Such ratings recognize the differences between short-term credit risk
and long-term risk. The following summarizes the ratings by Moody's Investors
Service, Inc. for short-term notes:

                  "MIG-1"/"VMIG-1" - This designation denotes best quality,
enjoying strong protection by established cash flows, superior liquidity support
or demonstrated broad-based access to the market for refinancing.

                  "MIG-2"/"VMIG-2" - This designation denotes high quality, with
margins of protection ample although not so large as in the preceding group.

                  "MIG-3"/"VMIG-3" - This designation denotes favorable quality,
with all security elements accounted for but lacking the undeniable strength of
the preceding grades. Liquidity and cash flow protection may be narrow and
market access for refinancing is likely to be less well established.

                  "MIG-4"/"VMIG-4" - This designation denotes adequate quality,
carrying specific risk but having protection commonly regarded as required of an
investment security and not distinctly or predominantly speculative.


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<PAGE>   61
                  "SG" - This designation denotes speculative quality and lack
of margins of protection.

                  Fitch IBCA and Duff & Phelps use the short-term ratings
described under Commercial Paper Ratings for municipal notes.





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