MAGNA FUNDS /MA/
497, 2001-01-18
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<PAGE>   1

      INVESTMENT ADVISER
      Union Planters Bank, National Association
      One South Church Street
      Suite 500
      Belleville, Illinois 62220

      ADMINISTRATOR & DISTRIBUTOR
      BISYS Fund Services, L.P.
      3435 Stelzer Road
      Columbus, Ohio 43219

      TRANSFER AND DIVIDEND
        PAYING AGENT
      BISYS Fund Services, Inc.
      3435 Stelzer Road
      Columbus, Ohio 43219

      CUSTODIAN
      Union Planters Bank, National Association
      One South Church Street
      Suite 500
      Belleville, Illinois 62220

      INDEPENDENT ACCOUNTANTS
      KPMG LLP
      Two Nationwide Plaza
      Suite 1600
      Columbus, Ohio 43215

      LEGAL COUNSEL
      Ropes & Gray
      One International Place
      Boston, Massachusetts 02110

                                   QUESTIONS?
             Call 1-800-219-4182 or your investment representative.

                           [Leader Mutual Funds Logo]
                                LEADER Growth &
                                  Income Fund

                              LEADER Balanced Fund

                               LEADER Tax-Exempt
                                   Bond Fund

                              LEADER Intermediate
                              Government Bond Fund

                               LEADER Short Term
                                   Bond Fund

                               LEADER Tax-Exempt
                               Money Market Fund

                                  LEADER Money
                                  Market Fund

                                LEADER Treasury
                               Money Market Fund

                              Institutional Shares
                                ---------------

                                   PROSPECTUS
                                JANUARY 1, 2001
                                ---------------
   THE SECURITIES AND EXCHANGE COMMISSION HAS NOT APPROVED OR DISAPPROVED THE
   SHARES DESCRIBED IN THIS PROSPECTUS OR DETERMINED WHETHER THIS PROSPECTUS
   IS ACCURATE OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
                                    OFFENSE.
<PAGE>   2

         LEADER MUTUAL FUNDS          TABLE OF CONTENTS

<TABLE>
<S>                             <C>             <C>  <C>
                                                RISK/RETURN SUMMARY AND FUND EXPENSES

                                      [ICON]
Carefully review this                             1  LEADER Growth & Income Fund
important section, which                          4  LEADER Balanced Fund
summarizes each Fund's                            7  LEADER Tax-Exempt Bond Fund
objectives, strategies,                           9  LEADER Intermediate Government Bond Fund
investments, risks, past                         13  LEADER Short Term Bond Fund
performance, and fees.                           15  LEADER Tax-Exempt Money Market Fund
                                                 17  LEADER Money Market Fund
                                                 19  LEADER Treasury Money Market Fund
                                                 21  Fees and Expenses
                                                 23  Investing for Defensive Purposes
                                                 23  Additional Information Regarding Fund Investments
                                                     and Policies

                                                FUND MANAGEMENT

                                      [ICON]
Review this section for                          25  Investment Adviser
details on the people and                        25  Portfolio Managers
organizations who oversee                        26  Distributor and Administrator
the Funds and their
investments.

                                                SHAREHOLDER INFORMATION

                                      [ICON]
Consult this section to                          27  Pricing of Fund Shares
obtain details on how shares                     28  Purchasing and Selling Your Shares
are valued, how to purchase,                     30  General Policies on Selling Shares
sell and exchange shares,                        31  Distribution Arrangements
related charges and payments                     31  Exchanging Your Shares
of dividends.                                    32  Dividends and Distributions
                                                 32  Taxation

                                                FINANCIAL HIGHLIGHTS

                                      [ICON]
Review this section for                          34  Financial Highlights
details on the selected
financial statements of the
Funds.
</TABLE>
<PAGE>   3

 [ICON]
                                                          LEADER GROWTH &
            RISK/RETURN SUMMARY AND FUND EXPENSES             INCOME FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             Long-term growth of capital, current income and growth of
                                      income.

    PRINCIPAL                         The LEADER Growth & Income Fund (formerly the "Magna Growth
    INVESTMENT STRATEGIES             & Income Fund") invests primarily in common stocks that
                                      Union Planters Bank, National Association ("the Adviser")
                                      believes have potential primarily for capital growth and
                                      secondarily for income. The Fund intends to hold a
                                      combination of growth stocks and value stocks. By investing
                                      in a blend of stocks that demonstrate strong long-term
                                      earnings potential and undervalued stocks, the Fund seeks to
                                      achieve strong returns with less volatility. A portion of
                                      the Fund's assets may also be invested in preferred stocks,
                                      bonds (primarily investment grade) convertible into common
                                      stock and securities of foreign issuers traded in U.S.
                                      securities markets. The Fund's investment in foreign issuers
                                      will be primarily through American Depositary Receipts
                                      ("ADRs"). The Fund expects to earn current income mainly
                                      from dividends paid on common and preferred stocks and from
                                      interest on convertible bonds.

                                      The Adviser utilizes both "top-down" and "bottom-up"
                                      approaches in constructing the Fund's portfolio. This means
                                      the Adviser looks at the condition of the overall economy
                                      and industry segments in addition to data on individual
                                      companies. The Adviser selects stocks with the intent of
                                      realizing long-term capital appreciation, not for quick
                                      turnover. The Adviser exercises patience and discipline in
                                      making decisions to sell or continue to hold individual
                                      stocks over time.

    PRINCIPAL                         Two principal risks of investing in stocks are market risk
    INVESTMENT RISKS                  and selection risk. Market risk means that the stock market
                                      in general has ups and downs, which may affect the
                                      performance of the individual stocks held by the Fund, and
                                      thus the performance of the Fund as a whole. Selection risk
                                      means that the particular stocks that are selected by the
                                      Adviser for the Fund may underperform the market or those
                                      stocks selected by other funds with similar objectives.

                                      The Fund will invest principally in common stocks, which
                                      have historically presented greater potential for capital
                                      appreciation than fixed income securities, but do not
                                      provide the same protection of capital or assurance of
                                      income and therefore may involve greater risk of loss. The
                                      Fund may invest a significant portion of its assets in
                                      "growth securities" and/or "value securities." Growth
                                      securities typically trade at higher multiples of current
                                      earnings than other stocks and are often more volatile than
                                      other types of securities because their market prices tend
                                      to place greater emphasis on future earnings expectations.
                                      Value securities bear the risk that the companies may not
                                      overcome the adverse business or other developments that
                                      caused the securities to be out of favor or that the market
                                      does not recognize the value of the company, such that the
                                      price of its securities declines or does not approach the
                                      value the Adviser anticipates.
</TABLE>

                                        1
<PAGE>   4

                                                          LEADER GROWTH &
   RISK/RETURN SUMMARY AND FUND EXPENSES                      INCOME FUND

<TABLE>
    <S>                               <C>
                                      The Fund's investments in foreign issuers (which will be
                                      primarily through ADRs) carry potential risks that are in
                                      addition to those associated with domestic investments. Such
                                      risks may include, but are not limited to: (1) currency
                                      exchange rate fluctuations, (2) political and financial
                                      instability, (3) less liquidity and greater volatility of
                                      foreign investments, (4) the lack of uniform accounting,
                                      auditing and financial reporting standards, and (5) less
                                      government regulation and supervision of foreign stock
                                      exchanges, brokers and listed companies.
                                      Investing in the Fund involves risks common to any
                                      investment in securities. By itself, no Fund constitutes a
                                      balanced investment program. There is no guarantee that the
                                      Fund will meet its goals. When you sell your shares in the
                                      Fund, they may be worth more or less than you paid for them.
                                      It is possible to lose money by investing in the Fund.
                                      An investment in the Fund is not a bank deposit and is not
                                      insured or guaranteed by the Federal Deposit Insurance
                                      Corporation or any other government agency.
                                      A more complete discussion of the Fund's investments and
                                      related risks can be found in the Statement of Additional
                                      Information.
</TABLE>

                                        2
<PAGE>   5

                                                          LEADER GROWTH &
   RISK/RETURN SUMMARY AND FUND EXPENSES                      INCOME FUND

         PERFORMANCE BAR CHART AND TABLE(1) -- INSTITUTIONAL SHARES(2)

   PERFORMANCE INFORMATION
   The bar chart and table
   provide an indication of
   the risks of an investment
   in the Fund by showing
   changes in its performance
   from year to year and by
   showing how the Fund's
   average annual returns for
   1 year, 5 years and the
   period of time since
   inception compare with
   those of a broad-based
   securities index and two
   indexes of funds that the
   Adviser believes have
   similar investment
   objectives. The Standard
   and Poor's 500 Composite
   Stock Price Index (the "S&P
   500") in the table below is
   an unmanaged, independently
   maintained U.S. large
   capitalization stock index.
   The information provided
   regarding the Lipper Growth
   & Income Index and the
   Lipper Large Cap Core Index
   shows how the Fund's
   average annual total
   returns compare with the
   returns of two indexes of
   funds that the Adviser
   believes have similar
   investment objectives.

   Past performance does not
   indicate how the Fund will
   perform in the future.

<TABLE>
<CAPTION>
                                    PAST    FIVE          SINCE FUND
                                    YEAR    YEAR      INCEPTION (9/1/94)
<S>                                 <C>     <C>     <C>
 LEADER GROWTH & INCOME FUND        18.18%  26.05%          23.29%
 S&P 500(R) INDEX                   21.04%  28.55%          25.97%
 LIPPER GROWTH & INCOME INDEX       11.86%  20.60%          18.29%
 LIPPER LARGE CAP CORE INDEX        19.35%  25.32%          22.83%
</TABLE>

(1) Both the chart and the table assume reinvestment of all dividend and capital
    gain distributions.

(2) Institutional Shares are the continuation of the Fund's single class of
    shares (Class A Shares) that existed prior to September 1, 2000. Class A
    Shares were redesignated as "Institutional Shares" effective September 1,
    2000. Unlike Class A Shares, purchases of Institutional Shares are not
    subject to any sales charges. As a result, the average annual total return
    figures set forth above do not reflect any reduction for such charges.

YEAR-BY-YEAR TOTAL RETURNS AS OF 12/31

<TABLE>
<S>                                                           <C>
                                                                                           (%)
                                                                                          -----

1995                                                                                       31.3

1996                                                                                      21.88

1997                                                                                      28.97

1998                                                                                      30.45

1999                                                                                      18.18

</TABLE>

For the period January 1, 2000 through September 30, 2000, the Fund's total
                                    return was -1.27%.
Best quarter:   Q4  1998  16.30%
Worst quarter:  Q3  1998  -5.24%

AVERAGE ANNUAL TOTAL RETURNS

(for the periods ending
December 31, 1999)

                                        3
<PAGE>   6

 [ICON]
                                                                   LEADER
            RISK/RETURN SUMMARY AND FUND EXPENSES           BALANCED FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             To maximize total return through a combination of growth of capital and
                                      current income consistent with preservation of capital.

    PRINCIPAL INVESTMENT              The LEADER Balanced Fund invests in a combination of equity securities (such
    STRATEGIES                        as stocks), fixed income securities (such as bonds) and money market
                                      instruments in relative proportions that the Adviser believes will offer
                                      attractive returns consistent with the Fund's objective. The Fund invests in
                                      equity securities primarily for growth and income, and in fixed income
                                      securities and money market securities primarily for income and relative
                                      stability.

                                      Under normal market conditions, the Fund invests at least 25% of its total
                                      assets in fixed income securities and no more than 75% of its total assets
                                      in equity securities. The actual percentages will vary from time to time
                                      based on the Adviser's economic and market outlooks. In determining the
                                      allocation of assets, the Adviser evaluates forecasts for inflation,
                                      interest rates and corporate earnings growth. The Adviser periodically will
                                      increase or decrease the Fund's allocation to equity securities, fixed
                                      income securities and money market instruments based on which asset class
                                      appears relatively more attractive than the others. For example, if the
                                      Adviser forecasts rapid economic growth leading to increased corporate
                                      earnings, it will generally increase the Fund's holdings of equity
                                      securities and reduce its holdings of fixed income securities and money
                                      market instruments.

                                      The Fund's equity securities will consist mainly of common stocks, but may
                                      also include preferred stocks and securities convertible into stocks, as
                                      well as warrants to purchase such securities. In selecting equity
                                      securities, the Adviser utilizes both "top-down" and "bottom-up" approaches.
                                      This means the Adviser looks at the condition of the overall economy and
                                      industry segments in addition to data on individual companies. The Adviser
                                      selects stocks with a long-term goal of realizing capital appreciation, not
                                      for quick turnover.

                                      The Fund's investment in fixed income securities will consist mainly of
                                      investment-grade bonds, but the Fund may invest in any kind of debt security
                                      issued by private corporations or the U.S. Government (including any of its
                                      political subdivisions, agencies, or instrumentalities). With respect to its
                                      investment in bonds, the Fund will invest primarily in issues rated in one
                                      of the four highest categories by a nationally recognized statistical rating
                                      organization ("NRSRO") (for example, rated Aaa, Aa, A or Baa by Moody's
                                      Investors Service, Inc. ("Moody's") or AAA, AA, A or BBB by Standard &
                                      Poor's Rating Service ("Standard & Poor's")) or unrated issues deemed by the
                                      Adviser to be of comparable quality. The Fund may also invest up to 10% of
                                      its total assets in securities rated below investment grade.
</TABLE>

                                        4
<PAGE>   7

                                                                   LEADER
   RISK/RETURN SUMMARY AND FUND EXPENSES                    BALANCED FUND

<TABLE>
    <S>                               <C>
                                      The Fund's investments in U.S. Government securities include direct
                                      obligations of the U.S. Treasury, such as U.S. Treasury bills, notes and
                                      bonds, as well as obligations of U.S. Government agencies, authorities or
                                      instrumentalities such as the Federal Home Loan Banks, FNMA, GNMA, the
                                      Federal Farm Credit Banks, the Student Loan Marketing Association, the
                                      Federal Home Loan Mortgage Corporation or the Tennessee Valley Authority.
                                      The Fund may also invest in corporate debt obligations, mortgage-backed
                                      securities, asset-backed securities, collateralized mortgage obligations,
                                      repurchase agreements, adjustable rate securities and payable-in-kind bonds.

                                      Decisions to sell portfolio holdings are generally the result of changes in
                                      the Adviser's forecast of interest rate trends, industries or other economic
                                      conditions, changes in the Adviser's assessment of the financial condition
                                      of a particular issuer, for liquidity purposes, or to rebalance the
                                      portfolio.
</TABLE>

<TABLE>
    <S>                               <C>
    PRINCIPAL INVESTMENT RISKS        Two principal risks of investing in the Fund are market risk and selection
                                      risk. Market risk means that each of the stock and bond markets in general
                                      has ups and downs, which may affect the performance of the individual
                                      securities held by the Fund, and thus the performance of the Fund as a
                                      whole. Selection risk means that the particular securities that are selected
                                      by the Adviser for the Fund may underperform the market or those securities
                                      selected by other funds with similar objectives.

                                      The equity component of the Fund will invest principally in common stocks,
                                      which have historically presented greater potential for capital appreciation
                                      than fixed income securities, but do not provide the same level of
                                      protection of capital or assurance of income and therefore may involve
                                      greater risk of loss. The Fund may invest a significant portion of its
                                      assets in "growth securities" and/or "value securities." Growth securities
                                      typically trade at higher multiples of current earnings than other stocks
                                      and are often more volatile than other types of securities because their
                                      market prices tend to place greater emphasis on future earnings
                                      expectations. Value securities bear the risk that the companies may not
                                      overcome the adverse business or other developments that caused the
                                      securities to be out of favor or that the market does not recognize the
                                      value of the company, such that the price of its securities declines or does
                                      not approach the value the Adviser anticipates.

                                      The fixed income component of the Fund seeks to provide income and a level
                                      of protection of capital but offers less potential for capital appreciation
                                      than equity securities. In addition, the fixed income component of the
                                      Fund's portfolio will be subject to the following additional risks:
</TABLE>

                                        5
<PAGE>   8

                                                                   LEADER
   RISK/RETURN SUMMARY AND FUND EXPENSES                    BALANCED FUND

<TABLE>
    <S>                               <C>
                                      Interest Rate Risk:  All bonds fluctuate in value as interest rates
                                      fluctuate. Generally, as interest rates rise, the value of a Fund's bond
                                      investments, and of its shares, will decline. If interest rates decline, the
                                      Fund's bond investments (and its share price) will generally increase in
                                      value. In general, the shorter the maturity of a bond, the lower the risk of
                                      price fluctuation and the lower the return.

                                      Credit Risk:  It is possible that a bond issuer may have its credit rating
                                      downgraded, or may not make timely interest and/or principal payments on its
                                      bonds. The lower a bond's rating, the greater its credit risk. Nearly all
                                      fixed income investments have exposure to some degree of credit risk. This
                                      risk will be more pronounced to the extent the Fund invests in securities
                                      rated below investment grade, or "junk bonds".

                                      Income Risk:  It is possible that the income derived from the Fund's fixed
                                      income component will decline over time because of a decrease in interest
                                      rates or other factors. Income risk is generally lower for long-term bonds
                                      and higher for short-term bonds. Because interest rates vary, it is
                                      impossible to predict the income or yield of the Fund for any particular
                                      period.

                                      Prepayment Risk:  Certain investments of the Fund may be subject to the risk
                                      that the principal amount of the underlying loan may be repaid prior to the
                                      bond's maturity date. Such repayments are common when interest rates
                                      decline. When such a repayment occurs, no additional interest will be paid
                                      on the investment. Prepayment exposes a Fund to potentially lower return
                                      upon subsequent reinvestment of the principal.

                                      Investing in the Fund involves risks common to any investment in securities.
                                      By itself, no Fund constitutes a balanced investment program. There is no
                                      guarantee that the Fund will meet its goals. When you sell your shares in
                                      the Fund, they may be worth more or less than you paid for them. It is
                                      possible to lose money by investing in the Fund.

                                      An investment in the Fund is not a bank deposit and is not insured or
                                      guaranteed by the Federal Deposit Insurance Corporation or any other
                                      government agency.

                                      A more complete discussion of the Fund's investments and related risks can
                                      be found in the Statement of Additional Information.

                                      No performance information is shown for the LEADER Balanced Fund because as
                                      of the date of this Prospectus, the Fund had not completed a full calendar
                                      year of operations.
</TABLE>

                                        6
<PAGE>   9

 [ICON]
                                                        LEADER TAX-EXEMPT
            RISK/RETURN SUMMARY AND FUND EXPENSES               BOND FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             Current income that is exempt from federal income tax consistent with
                                      preservation of capital.

    PRINCIPAL INVESTMENT              The LEADER Tax-Exempt Bond Fund (formerly the "Magna Tax-Exempt Bond Fund")
    STRATEGIES                        normally invests at least 80% of its total assets in obligations producing
                                      income that is exempt from federal income taxation. Federally tax-exempt
                                      obligations may include municipal bonds, notes and commercial paper issued
                                      by states and other local governments that are exempt from federal taxes.
                                      Securities whose interest is considered a tax preference item under the
                                      federal alternative minimum tax will be considered taxable for purposes of
                                      this policy. The Fund will invest at least 65% of its total assets in
                                      "bonds," which the Adviser deems to include all debt securities for this
                                      purpose. The Fund may invest up to 20% of its net assets in U.S. Government
                                      securities, money market instruments or "private activity" bonds (some or
                                      all of which may produce income subject to federal alternative minimum tax).
                                      The Fund seeks to maintain a dollar-weighted average portfolio maturity
                                      between five and twenty years.

                                      The Fund will only purchase securities rated in one of the four highest
                                      categories by an NRSRO (for example, Aaa, Aa, A or Baa by Moody's or AAA,
                                      AA, A or BBB by Standard & Poor's) or unrated securities deemed by the
                                      Adviser to be of comparable quality. If a security's rating is reduced below
                                      the required minimum after the Fund has purchased it, the Fund is not
                                      required to sell the security, but may consider doing so. However, the Fund
                                      does not intend to hold more than 10% of its total assets in securities that
                                      have been downgraded below investment grade (for example, below Baa by
                                      Moody's or BBB by Standard & Poor's).

                                      While maturity and credit quality are the most important investment factors,
                                      the Fund also considers the following when making investment decisions:
                                      - Current yield and yield to maturity.
                                      - Potential for capital gain.

                                      Decisions to sell portfolio holdings are generally the result of changes in
                                      the Adviser's forecast of interest rate trends, industries or other economic
                                      conditions, changes in the Adviser's assessment of the financial condition
                                      of a particular issuer, for liquidity purposes, or to rebalance the
                                      portfolio.

    PRINCIPAL INVESTMENT RISKS        The Fund invests primarily in high quality fixed income securities, which
                                      provide income and a level of protection of capital, but do not typically
                                      present opportunity for capital appreciation. The amount of information
                                      available about issuers of tax-exempt debt may not be as extensive as that
                                      which is made available by companies whose stock or debt is publicly traded.
                                      In addition, changes in law or adverse determinations by the Internal
                                      Revenue Service could make the income from some of the Fund's investments
                                      taxable. Two principal risks of fixed income (bond) investing are market
                                      risk and selection risk. Market risk means that the
</TABLE>

                                        7
<PAGE>   10

                                                               LEADER TAX-EXEMPT
   RISK/RETURN SUMMARY AND FUND EXPENSES                               BOND FUND

<TABLE>
    <S>                               <C>
                                      bond market in general has ups and downs, which may affect the performance
                                      of any individual fixed income security. Selection risk means that the
                                      particular bonds that are selected for the Fund may underperform the market
                                      or other funds with similar objectives. The Fund will also be subject to the
                                      following additional investment risks:

                                      Interest Rate Risk:  All bonds fluctuate in value as interest rates
                                      fluctuate. Generally, as interest rates rise, the value of a Fund's bond
                                      investments, and of its shares, will decline. If interest rates decline, the
                                      Fund's bond investments (and its share price) will generally increase in
                                      value. In general, the shorter the maturity of a bond, the lower the risk of
                                      price fluctuation and the lower the return.

                                      Credit Risk:  It is possible that a bond issuer may have its credit rating
                                      downgraded, or may not make timely interest and/or principal payments on its
                                      bonds. The lower a bond's rating, the greater its credit risk. Nearly all
                                      fixed income investments have exposure to some degree of credit risk.

                                      Income Risk:  It is possible that the Fund's income will decline over time
                                      because of a decrease in interest rates or other factors. Income risk is
                                      generally lower for long-term bonds and higher for short-term bonds. Because
                                      interest rates vary, it is impossible to predict the income or yield of the
                                      Fund for any particular period.

                                      Prepayment Risk:  Certain of the Fund's investments may be subject to the
                                      risk that the principal amount of the underlying loan may be repaid prior to
                                      the bond's maturity date. Such repayments are common when interest rates
                                      decline. When such a repayment occurs, no additional interest will be paid
                                      on the investment. Prepayment exposes a Fund to potentially lower return
                                      upon subsequent reinvestment of the principal.

                                      Investing in the Fund involves risks common to any investment in securities.
                                      By itself, no Fund constitutes a balanced investment program. There is no
                                      guarantee that the Fund will meet its goals. When you sell your shares in
                                      the Fund, they may be worth more or less than you paid for them. It is
                                      possible to lose money by investing in the Fund.

                                      An investment in the Fund is not a bank deposit and is not insured or
                                      guaranteed by the Federal Deposit Insurance Corporation or any other
                                      government agency.

                                      A more complete discussion of the Fund's investments and related risks can
                                      be found in the Statement of Additional Information.

                                      No performance information is shown for the Leader Tax-Exempt Bond Fund
                                      because as of the date of this Prospectus, the Fund had not completed a full
                                      calendar year of operations.
</TABLE>

                                        8
<PAGE>   11

 [ICON]
                                                      LEADER INTERMEDIATE
            RISK/RETURN SUMMARY AND FUND EXPENSES    GOVERNMENT BOND FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             Current income consistent with preservation of capital.

    PRINCIPAL INVESTMENT              The LEADER Intermediate Government Bond Fund (formerly the "Magna
    STRATEGIES                        Intermediate Government Bond Fund") invests primarily in U.S. Government
                                      securities (those that are issued or guaranteed as to principal and/or
                                      interest payments by the U.S. Government or its agencies or
                                      instrumentalities) and high grade bonds and notes of non-governmental
                                      issuers. Under normal market conditions, at least 65% of the Fund's total
                                      assets will be invested in U.S. Government securities. The Fund will invest
                                      at least 65% of its total assets in "bonds," which the Adviser deems to
                                      include all debt securities for this purpose. The Fund will maintain a
                                      dollar-weighted average portfolio maturity between three and ten years, but
                                      may purchase individual securities with longer or shorter maturities.

                                      By limiting the maturity of its portfolio securities the Fund seeks to
                                      moderate principal fluctuations. In addition, the Fund's Adviser seeks to
                                      increase total return by actively managing portfolio maturity and security
                                      selection considering economic and market conditions.

                                      The Fund's investments in U.S. Government securities may include direct
                                      obligations of the U.S. Treasury, such as U.S. Treasury bills, notes and
                                      bonds, as well as obligations of U.S. Government agencies, authorities or
                                      instrumentalities such as the Federal Home Loan Banks, FNMA, GNMA, the
                                      Federal Farm Credit Banks, the Student Loan Marketing Association, the
                                      Federal Home Loan Mortgage Corporation or the Tennessee Valley Authority.

                                      The Fund will invest primarily in issues rated in one of the four highest
                                      categories by a NRSRO (for example, rated Aaa, Aa, A or Baa by Moody's or
                                      AAA, AA, A or BBB by Standard & Poor's) or unrated issues deemed by the
                                      Adviser to be of comparable quality. If a security's rating is reduced below
                                      the required minimum after the Fund has purchased it, the Fund is not
                                      required to sell the security, but may consider doing so. However, the Fund
                                      does not intend to hold more than 5% of its total assets in securities rated
                                      below investment grade (for example, below Baa or BBB).

                                      The Fund may also invest in corporate debt obligations, mortgage-backed
                                      securities, collateralized mortgage obligations and repurchase agreements.

                                      While short-term interest rate bets are avoided, the Adviser constantly
                                      monitors economic conditions and adjusts portfolio maturity, where
                                      appropriate, to capitalize on interest rate trends. Security selection is
                                      managed considering factors such as credit risk and relative interest rate
                                      yields available among fixed income market sectors.
</TABLE>

                                        9
<PAGE>   12

                                                             LEADER INTERMEDIATE
   RISK/RETURN SUMMARY AND FUND EXPENSES             GOVERNMENT BOND FUND

<TABLE>
    <S>                               <C>
                                      While maturity and credit quality are the most important investment factors,
                                      other factors considered by the Fund when making investment decisions
                                      include:
                                      - Current yield and yield to maturity.
                                      - Potential for capital gain.

                                      Decisions to sell portfolio holdings are generally the result of changes in
                                      the Adviser's forecast of interest rate trends, industries or other economic
                                      conditions, changes in the Adviser's assessment of the financial condition
                                      of a particular issuer, for liquidity purposes, or to rebalance the
                                      portfolio.

    PRINCIPAL INVESTMENT RISKS        The Fund invests primarily in fixed income securities, which provide income
                                      and a level of protection of capital, but present less potential for capital
                                      appreciation than equity securities. Two principal risks of fixed income
                                      (bond) investing are market risk and selection risk. Market risk means that
                                      the bond market in general has ups and downs, which may affect the
                                      performance of any individual fixed income security. Selection risk means
                                      that the particular bonds that are selected for the Fund may underperform
                                      the market or other funds with similar objectives. In addition to market
                                      risk and selection risk, the Fund will also be subject to the following
                                      additional investment risks:

                                      Interest Rate Risk:  All bonds fluctuate in value as interest rates
                                      fluctuate. Generally, as interest rates rise, the value of a Fund's bond
                                      investments, and of its shares, will decline. If interest rates decline, the
                                      Fund's bond investments (and its share price) will generally increase in
                                      value. In general, the shorter the maturity of a bond, the lower the risk of
                                      price fluctuation and the lower the return.

                                      Credit Risk:  It is possible that a bond issuer may have its credit rating
                                      downgraded, or may not make timely interest and/or principal payments on its
                                      bonds. The lower a bond's rating, the greater its credit risk. Nearly all
                                      fixed income investments, including U.S. Government securities, have
                                      exposure to some degree of credit risk. U.S. Government securities may be
                                      subject to different types and amounts of credit support, as certain U.S.
                                      Government securities are not backed by the full faith and credit of the
                                      U.S. Government. Corporate bonds and notes, which may constitute up to 35%
                                      of the Fund's total assets, generally involve more credit risk than U.S.
                                      Government securities. Mortgage-backed securities may also be exposed to
                                      high levels of credit risk, depending upon the credit of the assets
                                      underlying such securities, the issuer's exposure to the credit risk of its
                                      affiliates and others, and the amount and quality of any credit enhancement
                                      associated with the security.
</TABLE>

                                       10
<PAGE>   13

                                                             LEADER INTERMEDIATE
   RISK/RETURN SUMMARY AND FUND EXPENSES             GOVERNMENT BOND FUND

<TABLE>
    <S>                               <C>
                                      Income Risk:  It is possible that the Fund's income will decline over time
                                      because of a decrease in interest rates or other factors. Income risk is
                                      generally lower for portfolios holding long-term bonds and higher for
                                      portfolios holding short-term bonds. Because interest rates vary, it is
                                      impossible to predict the income or yield of the Fund for any particular
                                      period.

                                      Prepayment Risk:  Many of the Fund's investments, including investments in
                                      mortgage-backed securities, are subject to the risk that the principal
                                      amount of the underlying loan may be repaid prior to the bond's maturity
                                      date. Such repayments are common when interest rates decline. When such a
                                      repayment occurs, no additional interest will be paid on the investment.
                                      Prepayment exposes a Fund to potentially lower return upon subsequent
                                      reinvestment of the principal.

                                      Investing in the Fund involves risks common to any investment in securities.
                                      By itself, no Fund constitutes a balanced investment program. There is no
                                      guarantee that the Fund will meet its goals. When you sell your shares in
                                      the Fund, they may be worth more or less than you paid for them. It is
                                      possible to lose money by investing in the Fund.

                                      An investment in the Fund is not a bank deposit and is not insured or
                                      guaranteed by the Federal Deposit Insurance Corporation or any other
                                      government agency.

                                      A more complete discussion of the Fund's investments and related risks can
                                      be found in the Statement of Additional Information.
</TABLE>

                                       11
<PAGE>   14

                                                      LEADER INTERMEDIATE
   RISK/RETURN SUMMARY AND FUND EXPENSES             GOVERNMENT BOND FUND

         PERFORMANCE BAR CHART AND TABLE(1) -- INSTITUTIONAL SHARES(2)
   PERFORMANCE INFORMATION
   The bar chart and table
   provide an indication of
   the risks of an investment
   in the Fund by showing
   changes in its performance
   from year to year and by
   showing how the Fund's
   average annual returns for
   one year, five years and
   the period of time since
   inception compare with
   those of a broad-based
   securities index. The
   information provided
   regarding the Lipper
   Intermediate Government
   Bond Index shows how the
   Fund's average total
   returns compare with the
   returns of an index of
   funds with similar
   investment objectives.

   Past performance does not
   indicate how the Fund will
   perform in the future.

<TABLE>
<CAPTION>
                                    PAST    FIVE          SINCE FUND
                                    YEAR    YEAR      INCEPTION (9/1/94)
<S>                                 <C>     <C>     <C>
 LEADER INTERMEDIATE GOVERNMENT
 BOND FUND                          -4.14%   5.87%           5.04%
 LIPPER INTERMEDIATE GOVERNMENT
 BOND INDEX                         -1.39%   6.63%           5.93%
</TABLE>

(1)Both the chart and the table assume reinvestment of all dividend and capital
   gain distributions.

(2)Institutional Shares are the continuation of the Fund's single class of
   shares (Class A Shares) that existed prior to September 1, 2000. Class A
   Shares were redesignated as "Institutional Shares" effective September 1,
   2000. Unlike Class A Shares, purchases of Institutional Shares are not
   subject to any sales charges. As a result, the average annual total return
   figures set forth above do not reflect any reduction for such charges.

YEAR-BY-YEAR TOTAL RETURNS AS OF 12/31

<TABLE>
<CAPTION>
<S>                                                           <C>
                                                                                  (%)
                                                                                 -----

1995                                                                             14.95

1996                                                                              3.43

1997                                                                              7.86

1998                                                                              8.19

1999                                                                             -4.14

</TABLE>

For the period January 1, 2000 through September 30, 2000, the Fund's total
                                    return was 6.52%.
Best quarter:   Q2  1995   5.19%
Worst quarter:  Q2  1999  -2.12%

AVERAGE ANNUAL TOTAL RETURNS

(for the periods ending December 31, 1999)

                                       12
<PAGE>   15

 [ICON]
                                                             LEADER SHORT
            RISK/RETURN SUMMARY AND FUND EXPENSES          TERM BOND FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             To provide a high level of current income consistent with preservation of
                                      capital.

    PRINCIPAL INVESTMENT              The LEADER Short Term Bond Fund invests primarily in investment-grade bonds
    STRATEGIES                        (for example, those rated at least Baa by Moody's or BBB by Standard &
                                      Poor's, or determined to be of comparable quality by the Adviser). The types
                                      of securities that the Fund may purchase include bonds of U.S. corporate and
                                      governmental issuers, U.S. dollar-denominated bonds of foreign issuers, and
                                      mortgage-backed and other asset-backed securities. The Fund will normally
                                      maintain a dollar-weighted average portfolio maturity of three years or
                                      less, but may purchase individual securities with longer maturities.

                                      By limiting the maturity of its portfolio securities the Fund seeks to
                                      moderate principal fluctuations. In addition, the Fund's Adviser seeks to
                                      increase total return by actively managing portfolio maturity and security
                                      selection considering economic and market conditions.

                                      In addition to a wide range of corporate and government debt obligations,
                                      the Fund may also invest in collateralized mortgage obligations, repurchase
                                      agreements, adjustable rate securities and payable in kind bonds. The Fund
                                      may also invest in securities rated below investment grade (for example,
                                      below Baa or BBB), but does not expect such investments to exceed 10% of the
                                      Fund's net assets.

                                      While maturity and credit quality are the most important investment factors,
                                      other factors considered by the Adviser when making investment decisions
                                      include:
                                      -Current yield and yield to maturity.
                                      -Potential for capital gain.

                                      Decisions to sell portfolio holdings are generally the result of changes in
                                      the Adviser's forecast of interest rate trends, industries or other economic
                                      conditions, changes in the Adviser's assessment of the financial condition
                                      of a particular issuer, for liquidity purposes, or to rebalance the
                                      portfolio.

    PRINCIPAL INVESTMENT RISKS        The Fund invests primarily in short-term investment grade fixed-income
                                      securities, which provide income and a level of protection of capital, but
                                      present less potential for capital appreciation than equity securities. Two
                                      principal risks of fixed-income (bond) investing are market risk and
                                      selection risk. Market risk means that the bond market in general has ups
                                      and downs, which may affect the performance of any individual fixed-income
                                      security. Selection risk means that the particular bonds that are selected
                                      for the Fund may underperform the market or other funds with similar
                                      objectives. In addition to market risk and selection risk, the Fund will be
                                      subject to the following additional investment risks:

                                      Interest Rate Risk:  All bonds fluctuate in value as interest rates
                                      fluctuate. Generally, as interest rates rise, the value of the Fund's
                                      investments, and of its shares, will decline. If interest rates decline, the
                                      Fund's investments (and its share price) will generally increase in value.
                                      In general, the
</TABLE>

                                       13
<PAGE>   16

                                                             LEADER SHORT
   RISK/RETURN SUMMARY AND FUND EXPENSES                   TERM BOND FUND

<TABLE>
    <S>                               <C>
                                      shorter the maturity of a bond, the lower the risk of price fluctuation and
                                      the lower the return.

                                      Credit Risk:  It is possible that a bond issuer may have its credit rating
                                      downgraded, or may not make timely interest and/or principal payments on its
                                      bonds. The lower a bond's rating, the greater its credit risk. Nearly all
                                      fixed-income investments, including U.S. Government securities, have
                                      exposure to some degree of credit risk. This risk will be more pronounced to
                                      the extent the Fund invests in securities rated below investment grade, or
                                      "junk bonds". Mortgage-backed securities may be exposed to higher levels of
                                      credit risk, depending upon the credit of the assets underlying such
                                      securities, the issuer's exposure to the credit risk of its affiliates and
                                      others, and the amount and quality of any credit enhancement associated with
                                      the security.

                                      Income Risk:  It is possible that the Fund's income will decline over time
                                      because of a decrease in interest rates or other factors. Income risk is
                                      generally higher for portfolios holding short-term bonds. Because interest
                                      rates vary, it is impossible to predict the income or yield of the Fund for
                                      any particular period.

                                      Prepayment Risk:  Many of the Fund's investments, including investments in
                                      mortgage- and asset-backed securities, are subject to the risk that the
                                      principal amount of the underlying loan may be repaid prior to the bond's
                                      maturity date. Such repayments are common when interest rates decline. When
                                      such a repayment occurs, no additional interest will be paid on the
                                      investment. Prepayment exposes a Fund to potentially lower return upon
                                      subsequent reinvestment of the principal.

                                      Foreign Investments:  The Fund may invest in U.S. dollar-denominated bonds
                                      issued by foreign governments or corporations. Foreign investments involve
                                      certain special risks, including the risk of seizure by foreign governments,
                                      imposition of restrictions on exchange, tax increases, less
                                      publicly-available information, less liquidity due to limited markets and
                                      higher transaction costs.

                                      Investing in the Fund involves risks common to any investment in securities.
                                      By itself, no Fund constitutes a balanced investment program. There is no
                                      guarantee that the Fund will meet its goals. When you sell your shares in
                                      the Fund, they may be worth more or less than you paid for them. It is
                                      possible to lose money by investing in the Fund.

                                      An investment in the Fund is not a bank deposit and is not insured or
                                      guaranteed by the Federal Deposit Insurance Corporation or any other
                                      government agency.

                                      A more complete discussion of the Fund's investments and related risks can
                                      be found in the Statement of Additional Information.

                                      No performance information is shown for the LEADER Short Term Bond Fund
                                      because as of the date of this Prospectus, the Fund had not completed a full
                                      calendar year of operations.
</TABLE>

                                       14
<PAGE>   17

 [ICON]
                                                        LEADER TAX-EXEMPT
            RISK/RETURN SUMMARY AND FUND EXPENSES       MONEY MARKET FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             Maximum current income exempt from federal income tax consistent with
                                      preservation of capital and liquidity.

    PRINCIPAL INVESTMENT              The LEADER Tax-Exempt Money Market Fund invests primarily in high- quality,
    STRATEGIES                        short-term money market instruments which pay interest that is exempt from
                                      federal income tax. Under normal market conditions, the Fund will invest at
                                      least 80% of its total assets in short-term tax-exempt instruments.
                                      Federally tax-exempt obligations may include municipal securities and
                                      commercial paper issued by states and other local governments. Securities
                                      whose interest is considered a tax preference item under the federal
                                      alternative minimum tax will be considered taxable for purposes of this
                                      policy. The Fund may invest up to 20% of its net assets in short-term money
                                      market instruments or "private activity" bonds, some or all of which may
                                      produce income subject to federal alternative minimum tax.

                                      At the time of purchase, all of the Fund's investments (other than U.S.
                                      Government securities and related repurchase agreements) will be rated in
                                      the highest rating category by an NRSRO (for example, Aaa by Moody's or AAA
                                      by Standard & Poor's) or, if unrated, deemed by the Adviser to be of
                                      comparable quality. In addition, all Fund investments will mature in 397
                                      days or less, and the Fund's average maturity will not exceed 90 days.

                                      While the Fund typically holds securities until maturity, decisions to sell
                                      portfolio holdings are generally the result of a change in financial
                                      condition of the issuer of a security, for liquidity purposes, or to
                                      rebalance the portfolio.

    PRINCIPAL INVESTMENT RISKS        The Fund will invest primarily in high quality fixed income securities,
                                      which provide income and a level of protection of capital, but do not
                                      typically present opportunity for capital appreciation. The amount of
                                      information available about issuers of tax-exempt debt may not be as
                                      extensive as that which is made available by companies whose stock or debt
                                      is publicly traded. In addition, changes in law or adverse determinations by
                                      the Internal Revenue Service could make the income from some of the Fund's
                                      investments taxable. The Fund's quality and maturity limitations described
                                      above will reduce, but not altogether eliminate, the following additional
                                      risks:

                                      Interest Rate Risk:  All debt instruments fluctuate in value as interest
                                      rates fluctuate. Generally, as interest rates rise, the value of a Fund's
                                      fixed income investments, and of its shares, will decline. If interest rates
                                      decline, the Fund's investments (and its share price) will generally
                                      increase in value. In general, the shorter the maturity of a debt
                                      instrument, the lower the risk of price fluctuation and the lower the
                                      return.
</TABLE>

                                       15
<PAGE>   18

                                                        LEADER TAX-EXEMPT
   RISK/RETURN SUMMARY AND FUND EXPENSES                MONEY MARKET FUND

<TABLE>
    <S>                               <C>
                                      Credit Risk:  It is possible that a debt issuer may have its credit rating
                                      downgraded, or may not make timely interest and/or principal payments on its
                                      debt instruments. The lower a debt instrument's rating, the greater its
                                      credit risk. Nearly all fixed income investments have exposure to some
                                      degree of credit risk. Corporate bonds and notes generally involve more
                                      credit risk although even U.S. Government securities are generally
                                      considered to have some credit risk. The Fund's use of repurchase agreements
                                      also involves some credit risk, primarily the risk of loss if the seller
                                      defaults.

                                      Income Risk:  It is possible that the Fund's income will decline over time
                                      because of a decrease in interest rates or other factors. Income risk is
                                      generally lower for longer-term debt instruments and higher for shorter-
                                      term debt instruments. Because interest rates vary, it is impossible to
                                      predict the income or yield of the Fund for any particular period.

                                      Investing in the Fund involves risks common to any investment in securities.
                                      By itself, no Fund constitutes a balanced investment program. There is no
                                      guarantee that the Fund will meet its goals.

                                      An investment in the Fund is not a bank deposit and is not insured or
                                      guaranteed by the Federal Deposit Insurance Corporation or any other
                                      government agency. Although the Fund seeks to preserve the value of your
                                      investment at $1.00 per share, it is possible to lose money by investing in
                                      this Fund.

                                      A more complete discussion of the Fund's investments and related risks can
                                      be found in the Statement of Additional Information.

                                      No performance information is shown for the LEADER Money Market Fund because
                                      as of the date of this Prospectus, the Fund had not completed a full
                                      calendar year of operations.
</TABLE>

                                       16
<PAGE>   19

 [ICON]
                                                             LEADER MONEY
            RISK/RETURN SUMMARY AND FUND EXPENSES             MARKET FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             Maximum current income consistent with preservation of capital and
                                      liquidity.

    PRINCIPAL INVESTMENT              The LEADER Money Market Fund (formerly the "Magna Money Market Fund")
    STRATEGIES                        invests in a variety of high-quality money market instruments, including
                                      U.S. Government securities, taxable municipal debt, commercial paper and
                                      other corporate debt obligations, certificates of deposit, repurchase
                                      agreements, bankers' acceptances and other dollar-denominated bank
                                      obligations, including obligations issued by U.S. banks, their foreign
                                      branches and/or foreign banks. At the time of purchase, all of the Fund's
                                      investments (other than U.S. Government securities and related repurchase
                                      agreements) will be rated in the highest rating category by an NRSRO (for
                                      example, Aaa by Moody's or AAA by Standard & Poor's) or, if unrated, deemed
                                      by the Adviser to be of comparable quality. In addition, all Fund
                                      investments will mature in 397 days or less, and the Fund's average maturity
                                      will not exceed 90 days.

                                      While the Fund typically holds securities until maturity, decisions to sell
                                      portfolio holdings are generally the result of a change in financial
                                      condition of the issuer of a security, for liquidity purposes, or to
                                      rebalance the portfolio.

    PRINCIPAL INVESTMENT RISKS        The Fund will invest primarily in high quality fixed income securities,
                                      which provide income and a level of protection of capital, but do not
                                      typically present opportunity for capital appreciation. The Fund's quality
                                      and maturity limitations described above will reduce, but not altogether
                                      eliminate the following risks:

                                      Interest Rate Risk:  All debt instruments fluctuate in value as interest
                                      rates fluctuate. Generally, as interest rates rise, the value of a Fund's
                                      fixed income investments, and of its shares, will decline. If interest rates
                                      decline, the Fund's investments (and its share price) will generally
                                      increase in value. In general, the shorter the maturity of a debt
                                      instrument, the lower the risk of price fluctuation and the lower the
                                      return.

                                      Credit Risk:  It is possible that a debt issuer may have its credit rating
                                      downgraded, or may not make timely interest and/or principal payments on its
                                      debt instruments. The lower a debt instrument's rating, the greater its
                                      credit risk. Nearly all fixed income investments have exposure to some
                                      degree of credit risk. Corporate bonds and notes generally involve more
                                      credit risk although even U.S. Government securities are generally
                                      considered to have some credit risk. The Fund's use of repurchase agreements
                                      also involves some credit risk, primarily the risk of loss if the seller
                                      defaults.
</TABLE>

                                       17
<PAGE>   20

                                                             LEADER MONEY
   RISK/RETURN SUMMARY AND FUND EXPENSES                      MARKET FUND

<TABLE>
    <S>                               <C>
                                      Income Risk:  It is possible that the Fund's income will decline over time
                                      because of a decrease in interest rates or other factors. Income risk is
                                      generally lower for longer-term debt instruments and higher for shorter-
                                      term debt instruments. Because interest rates vary, it is impossible to
                                      predict the income or yield of the Fund for any particular period.

                                      Investing in the Fund involves risks common to any investment in securities.
                                      By itself, no Fund constitutes a balanced investment program. There is no
                                      guarantee that the Fund will meet its goals.

                                      An investment in the Fund is not a bank deposit and is not insured or
                                      guaranteed by the Federal Deposit Insurance Corporation or any other
                                      government agency. Although the Fund seeks to preserve the value of your
                                      investment at $1.00 per share, it is possible to lose money by investing in
                                      this Fund.

                                      A more complete discussion of the Fund's investments and related risks can
                                      be found in the Statement of Additional Information.

                                      No performance information is shown for the LEADER Money Market Fund because
                                      as of the date of this Prospectus, the Fund had not completed a full
                                      calendar year of operations.
</TABLE>

                                       18
<PAGE>   21

 [ICON]
                                                          LEADER TREASURY
            RISK/RETURN SUMMARY AND FUND EXPENSES       MONEY MARKET FUND

<TABLE>
    <S>                               <C>

    INVESTMENT OBJECTIVES             High level of current income consistent with stability of principal and
                                      liquidity.

    PRINCIPAL INVESTMENT              The LEADER Treasury Money Market Fund invests primarily in high- quality,
    STRATEGIES                        short-term money market securities whose interest and principal payments are
                                      backed by the full faith and credit of the U.S. Government. Under normal
                                      market conditions, the Fund will invest substantially all of its total
                                      assets in money market securities issued by the U.S. Treasury and certain
                                      U.S. Government agencies and instrumentalities that provide income that is
                                      generally not subject to state income tax. All Fund investments will mature
                                      in 397 days or less, and the Fund's average maturity will not exceed 90
                                      days.

                                      While the Fund typically holds securities until maturity, decisions to sell
                                      portfolio holdings are generally the result of a change in financial
                                      condition of the issuer of a security, for liquidity purposes, or to
                                      rebalance the portfolio.

    PRINCIPAL INVESTMENT RISKS        The Fund will invest primarily in high quality fixed income securities,
                                      which provide income and a level of protection of capital, but do not
                                      typically present opportunity for capital appreciation. The Fund's issuer
                                      selection, credit quality and maturity limitations will reduce, but not
                                      altogether eliminate, the following additional risks:

                                      Interest Rate Risk:  All debt instruments fluctuate in value as interest
                                      rates fluctuate. Generally, as interest rates rise, the value of a Fund's
                                      fixed income investments, and of its shares, will decline. If interest rates
                                      decline, the Fund's investments (and its share price) will generally
                                      increase in value. In general, the shorter the maturity of a debt
                                      instrument, the lower the risk of price fluctuation and the lower the
                                      return.

                                      Credit Risk:  It is possible that a debt issuer may have its credit rating
                                      downgraded, or may not make timely interest and/or principal payments on its
                                      debt instruments. The lower a debt instrument's rating, the greater its
                                      credit risk. Nearly all fixed income investments have exposure to some
                                      degree of credit risk. Corporate bonds and notes generally involve more
                                      credit risk although even U.S. Government securities are generally
                                      considered to have some credit risk. The Fund's use of repurchase agreements
                                      also involves some credit risk, primarily the risk of loss if the seller
                                      defaults.

                                      Income Risk:  It is possible that the Fund's income will decline over time
                                      because of a decrease in interest rates or other factors. Income risk is
                                      generally lower for longer-term debt instruments and higher for shorter-
                                      term debt instruments. Because interest rates vary, it is impossible to
                                      predict the income or yield of the Fund for any particular period.
</TABLE>

                                       19
<PAGE>   22

                                                                          LEADER
   TREASURY
   RISK/RETURN SUMMARY AND FUND EXPENSES                       MONEY MARKET FUND

<TABLE>
    <S>                               <C>
                                      Investing in the Fund involves risks common to any investment in securities.
                                      By itself, no Fund constitutes a balanced investment program. There is no
                                      guarantee that the Fund will meet its goals.

                                      An investment in the Fund is not a bank deposit and is not insured or
                                      guaranteed by the Federal Deposit Insurance Corporation or any other
                                      government agency. Although the Fund seeks to preserve the value of your
                                      investment at $1.00 per share, it is possible to lose money by investing in
                                      this Fund.

                                      A more complete discussion of the Fund's investments and related risks can
                                      be found in the Statement of Additional Information.

                                      No performance information is shown for the LEADER Money Market Fund because
                                      as of the date of this Prospectus, the Fund had not completed a full
                                      calendar year of operations.
</TABLE>

                                       20
<PAGE>   23

   RISK/RETURN SUMMARY AND FUND EXPENSES                FEES AND EXPENSES

   FEES AND EXPENSES
   The following table describes the Fees and Expenses that you may pay if you
   buy and hold Institutional Shares of the Funds:

<TABLE>
<CAPTION>
                                                                                                   LEADER                 LEADER
                                   LEADER                               LEADER                   TAX-EXEMPT    LEADER    TREASURY
          SHAREHOLDER FEES        GROWTH &    LEADER      LEADER     INTERMEDIATE     LEADER       MONEY       MONEY      MONEY
      (FEES PAID DIRECTLY FROM     INCOME    BALANCED   TAX-EXEMPT    GOVERNMENT    SHORT TERM     MARKET      MARKET     MARKET
          YOUR INVESTMENT)          FUND       FUND     BOND FUND     BOND FUND     BOND FUND       FUND        FUND       FUND
    <S>                           <C>        <C>        <C>          <C>            <C>          <C>          <C>        <C>

    MAXIMUM SALES CHARGE (LOAD)
    IMPOSED ON PURCHASES (AS A
    PERCENTAGE OF OFFERING PRICE)   NONE       NONE        NONE          NONE          NONE         NONE        NONE       NONE
    MAXIMUM SALES CHARGE (LOAD)
    IMPOSED ON REINVESTED
    DIVIDENDS                       NONE       NONE        NONE          NONE          NONE         NONE        NONE       NONE
    MAXIMUM DEFERRED SALES LOAD     NONE       NONE        NONE          NONE          NONE         NONE        NONE       NONE
    ANNUAL FUND OPERATING
    EXPENSES (EXPENSES THAT ARE
    DEDUCTED FROM FUND ASSETS)
    MANAGEMENT FEES(1)              0.75%      0.80%       0.50%         0.50%         0.55%        0.40%       0.40%      0.40%
    OTHER EXPENSES(2)               0.57%      0.75%(3)    0.82%(3)      0.64%         1.04%(3)     0.75%(3)    0.62%      0.75%(3)
    TOTAL ANNUAL FUND OPERATING
    EXPENSES(4)                     1.32%      1.55%       1.32%         1.14%         1.59%        1.15%       1.02%      1.15%
</TABLE>

   (1) As of the date of this Prospectus, the Adviser is voluntarily waiving the
       following portion of its management fee from each Fund: Growth & Income
       Fund - 0.10%; Balanced Fund - 0.20%; Tax-Exempt Bond Fund - 0.30%;
       Intermediate Government Bond Fund - 0.10%; Short Term Bond Fund - 0.45%;
       Tax-Exempt Money Market Fund - 0.30%; Money Market Fund - 0.15%; and
       Treasury Money Market Fund - 0.28%. These waivers may be eliminated at
       any time in the Adviser's sole discretion.

   (2) Includes an annual administrative services fee of up to 0.30% for each of
       the Growth & Income Fund, Balanced Fund, Tax-Exempt Bond Fund,
       Intermediate Government Bond Fund and Short Term Bond Fund, and up to
       0.25% for each Money Fund. Part or all of these fees, which are payable
       under an Administrative Services Plan (the "Plan") adopted by the Board
       of Trustees of LEADER Mutual Funds, may be paid to financial institutions
       that provide certain administrative services to their customers or other
       shareholders who own Institutional Shares of the Funds. As of the date of
       this Prospectus, no administrative service fees are being paid by any
       Fund under the Plan, but such fees could be imposed at any time.

   (3) Other Expenses are estimated for the Fund's current fiscal year.


   (4) As a result of the Adviser's voluntary waiver of a portion of its
       management fee (see footnote 1 above), the absence of any administrative
       service fees currently being paid under the Plan (see footnote 2 above)
       and recent changes in each Fund's net assets, as of the date of this
       Prospectus, net annual operating expenses for each Fund are expected to
       be as follows: GROWTH & INCOME FUND - 0.99%; BALANCED FUND - 1.05%;
       TAX-EXEMPT BOND FUND - 0.77%; INTERMEDIATE GOVERNMENT BOND FUND - 0.82%;
       SHORT TERM BOND FUND - 0.84%; TAX-EXEMPT MONEY MARKET FUND - 0.57%; MONEY
       MARKET FUND - 0.57%; AND TREASURY MONEY MARKET FUND - 0.57%. THE ADVISER
       MAY ELIMINATE ITS VOLUNTARY FEE WAIVER, AND/OR THE FUNDS MAY COMMENCE
       PAYING ADMINISTRATIVE SERVICE FEES UNDER THE PLAN, AT ANY TIME.


                                       21
<PAGE>   24

   RISK/RETURN SUMMARY AND FUND EXPENSES                FEES AND EXPENSES

   The Example at the right is intended to help you compare the cost of
   investing in the LEADER Mutual Funds with the costs of investing in other
   mutual funds. It estimates the amount of fees and expenses you would pay,
   assuming the following:

     - $10,000 investment
     - 5% annual return
     - redemption at the end of each period
     - no changes in the Fund's operating expenses

   Because this example is hypothetical and for comparison only, your actual
   costs may be higher or lower. The examples do not reflect any fee waivers
   that may be in effect for part or all of the relevant period.
EXAMPLE

<TABLE>
                                          <S>                                 <C>    <C>    <C>    <C>
                                                                                 1      3      5       10
                                                                              YEAR   YEARS  YEARS   YEARS

                                          LEADER GROWTH & INCOME FUND         $134   $418   $723   $1,590
                                          LEADER BALANCED FUND                $158   $490
                                          LEADER TAX-EXEMPT BOND FUND         $134   $418
                                          LEADER INTERMEDIATE GOVERNMENT
                                            BOND FUND                         $116   $362   $628   $1,386
                                          LEADER SHORT TERM BOND FUND         $162   $502
                                          LEADER TAX-EXEMPT MONEY MARKET
                                            FUND                              $117   $365
                                          LEADER MONEY MARKET FUND            $104   $325   $563   $1,248
                                          LEADER TREASURY MONEY MARKET FUND   $117   $365
</TABLE>

                                       22
<PAGE>   25

   RISK/RETURN SUMMARY AND FUND EXPENSES

   INVESTING FOR DEFENSIVE PURPOSES

   During adverse market conditions, each Fund may, for temporary defensive
   purposes, invest up to 100% of its total assets in money market instruments.
   (The Tax-Exempt Money Market Fund, Money Market Fund and Treasury Money
   Market Fund (each a "Money Fund" and collectively, the "Money Funds") may
   invest 100% of their total assets in money market investments for any
   purpose.) Each of the Intermediate Government Bond Fund, the Short Term Bond
   Fund and the Tax-Exempt Bond Fund may also shorten its dollar-weighted
   average maturity below its normal range if such action is deemed appropriate
   by the Adviser for temporary defensive purposes. If a Fund is investing
   defensively, it will not be pursuing its investment objective.
   ADDITIONAL INFORMATION REGARDING FUND INVESTMENTS AND POLICIES

   Except for those policies specifically identified as "fundamental", the
   investment objectives and policies set forth in this Prospectus may be
   changed by the Adviser, subject to review and approval by the Trust's Board
   of Trustees of LEADER Mutual Funds (the "Trust"), without shareholder vote.
   The investment objective of each of the Growth & Income Fund and Intermediate
   Government Bond Fund is fundamental. The investment objective of each other
   Fund is non-fundamental, and may be changed without shareholder vote.

   Each of the Funds may invest in shares of other open-end investment
   companies, consistent with, and to the extent permitted by, applicable law.
   In addition, pursuant to an order issued by the U.S. Securities and Exchange
   Commission (the "SEC"), each non-Money Fund may invest a portion of its
   assets in one or more of the Money Funds for cash management purposes.

   The Funds' "Principal Investment Strategies" described in the Risk/Return
   Summaries earlier in this Prospectus included references to certain
   investments you might not be familiar with. Please refer to a Fund's
   Risk/Return Summary to identify which of the following investments are
   expected to be principally used by that Fund in pursuit of its investment
   objective:

     adjustable rate securities -- securities that have interest rates that are
     reset at periodic intervals, usually by reference to some interest rate
     index or market interest rate.

     American Depositary Receipts ("ADR's") -- certificates that represent an
     interest in the shares of a foreign-based corporation that are held in
     trust by a bank.

     asset-backed securities -- interests in pools created by the grouping of
     certain governmental, government-related or private loans, receivables and
     other lender assets.

     collateralized mortgage obligations (CMO's) -- bonds generally issued by a
     special purpose vehicle and collateralized by a pool of mortgages.

     mortgage-backed securities -- participations in organized pools of
     residential mortgages, the principal and interest payments on which are
     passed from the mortgage originators through intermediaries that pool and
     repackage them in the form of securities.

     payable-in-kind bonds -- bonds in which interest during the initial few
     years is typically paid in additional debentures rather than in cash.

                                       23
<PAGE>   26

   RISK/RETURN SUMMARY AND FUND EXPENSES

     private activity bonds -- includes bonds issued by public authorities to
     finance projects such as privately operated housing facilities, local
     facilities for supplying water, gas or electricity or student loans, as
     well as public or private institutions for the construction of educational,
     hospital, housing and other facilities.

     repurchase agreements -- agreements by which a Fund purchases a security
     and obtains a simultaneous commitment from the seller (typically a bank) to
     repurchase the security at an agreed upon price and date (typically one to
     seven days).

   A more complete discussion of each of these investments, and of each Fund's
   investments and related risks, can be found in the Statement of Additional
   Information.

                                       24
<PAGE>   27

 [ICON]
            FUND MANAGEMENT

   INVESTMENT ADVISER

   Union Planters Bank, National Association ("Union Planters" or the
   "Adviser"), One South Church Street, Suite 500, Belleville, Illinois 62220,
   serves as investment adviser to the LEADER Mutual Funds. Union Planters, a
   wholly-owned subsidiary of Union Planters Corporation, is a multi-state
   national banking association headquartered in Memphis, Tennessee with total
   assets of approximately $34 billion.

   For investment advisory services provided by Union Planters, the Funds paid
   as follows during the fiscal year ended August 31, 2000:

<TABLE>
<CAPTION>
                                                                AS A PERCENTAGE OF
                                                                AVERAGE NET ASSETS
                                                                  AS OF 8/31/00*
    <S>                                                   <C>
                                                          ------------------------------
     LEADER Growth & Income Fund                                       0.50%
                                                          ------------------------------
     LEADER Tax-Exempt Bond Fund                                       0.30%
    -------------------------------------------------------------------------------------
     LEADER Intermediate Government Bond Fund                          0.40%
                                                          ------------------------------
     LEADER Money Market Fund                                          0.17%
                                                          ------------------------------
</TABLE>

   * Absent expense limitations that were in place throughout this period, these
     amounts would have been 0.75%, 0.50%, 0.40% and 0.50% (as a percentage of
     average daily net assets) for the Growth & Income Fund, Intermediate
     Government Bond Fund, Money Market Fund and Tax-Exempt Bond Fund,
     respectively.

   In addition, the Balanced Fund, Short Term Bond Fund, Tax-Exempt Money Market
   Fund and Treasury Money Market Fund will pay Union Planters up to 0.80%,
   0.55%, 0.40% and 0.40% (as a percentage of average daily net assets),
   respectively, for investment advisory services rendered to such Funds.

   PORTFOLIO MANAGERS

   Union Planters has several portfolio managers committed to the day-to-day
   management of the Funds.

   Gary J. Guthrie is the portfolio manager for the LEADER Growth & Income Fund.
   Mr. Guthrie is a graduate of Southern Illinois University and is currently a
   Vice President of Union Planters.

   L. Clark Zedric is the portfolio manager for the LEADER Intermediate
   Government Bond Fund. He received his MBA from Illinois State University and
   is currently a Vice President of Union Planters.

   Both Mr. Guthrie and Mr. Zedric have served as portfolio managers since these
   Funds' inception in 1994.

   Lucy Kasson is the portfolio manager for the LEADER Tax-Exempt Bond Fund and
   each of the Money Funds. A graduate of DePaul University, Ms. Kasson joined
   Union Planters in 1999, where she is currently a Vice President and has
   served as the portfolio manager for each of these Funds since their
   inception. Ms. Kasson was employed by Nuveen Advisory Corporation from 1978
   until 1999, where she served as a portfolio manager from 1995 to 1999.

   The LEADER Balanced Fund is managed by Mr. Guthrie, Ms. Kasson and Mr.
   Zedric.

   The LEADER Short Term Bond Fund is managed by Mr. Zedric and James W. Duies.
   Mr. Duies joined Union Planters in April 1999 as a Junior Portfolio Manager
   and became a portfolio manager in 2000. Prior to joining Union Planters, Mr.
   Duies was a Trust & Investment Assistant at SunTrust Investments. Mr. Duies
   graduated from Millikin University in 1995.

   The Statement of Additional Information ("SAI") has more detailed information
   about the Adviser and the Funds' other service providers.
                                       25
<PAGE>   28

   FUND MANAGEMENT

   DISTRIBUTOR AND ADMINISTRATOR

   BISYS Fund Services L.P., ("BISYS" or the "Distributor") is the distributor
   of each Fund, and also provides management and administrative services to the
   Funds, including providing office space, equipment and clerical personnel to
   the Funds and supervising custodial, auditing, valuation, bookkeeping and
   legal services. BISYS Fund Services, Inc. (the "Transfer Agent"), an
   affiliate of BISYS, acts as the fund accountant, transfer agent and dividend
   paying agent of the Funds. BISYS and BISYS Fund Services, Inc. are each
   located at 3435 Stelzer Road, Columbus, Ohio 43219.

                                       26
<PAGE>   29

 [GRAPHIC]
            SHAREHOLDER INFORMATION

   PRICING OF FUND SHARES
   ----------------------------------------
   HOW NET ASSET VALUE IS
   CALCULATED
   The net asset value, or
   NAV, is calculated by
   adding the total value of
   the Fund's investments and
   other assets, subtracting
   its liabilities and then
   dividing that figure by the
   number of outstanding
   shares of the Fund:

              NAV =
   Total Assets - Liabilities
  ------------------------------------------------------------------------------
        Number of Shares
           Outstanding

   ---------------------------
AVOID 31% TAX WITHHOLDING
Each Fund is required to withhold 31% of taxable dividends, capital gains
distributions and redemptions paid to shareholders who have not provided the
Fund with their certified taxpayer identification number in compliance with IRS
rules. To avoid this, make sure you provide your correct Tax Identification
Number (Social Security Number for most investors) on your account application.

   LEADER MONEY FUNDS

   The NAV of each Money Fund is expected to be constant at $1.00 per share,
   although this value is not guaranteed. The NAV is determined at 3:00 p.m.
   Eastern time (2:00 p.m. Central time) for the Money Market Fund and Treasury
   Money Market Fund and 12:30 p.m. Eastern time (11:30 a.m. Central time) for
   the Tax-Exempt Money Market Fund on all days when the New York Stock Exchange
   (the "Exchange") is open for regular trading. In addition to Exchange
   holidays, the Money Funds will also be closed on Columbus Day and Veterans'
   Day. The Money Funds value their securities at amortized cost. The amortized
   cost method involves valuing a portfolio security initially at its cost on
   the date of the purchase and thereafter assuming a constant amortization to
   maturity of the difference between the principal amount due at maturity and
   initial cost.

   LEADER GROWTH & INCOME FUND
   LEADER BALANCED FUND
   LEADER TAX-EXEMPT BOND FUND
   LEADER INTERMEDIATE GOVERNMENT BOND FUND
   LEADER SHORT TERM BOND FUND

   The per share NAV for each Fund other than the Money Funds is determined, and
   its shares are priced at the close of regular trading on the Exchange,
   normally at 4:00 p.m. Eastern time (3:00 p.m. Central time), on days the
   Exchange is open for regular trading.

   Your order for the purchase, sale or exchange of shares is priced at the next
   NAV calculated after a properly completed order is received and accepted by
   the Fund on any day that the Exchange is open for business. For example, if
   you place a purchase order to buy shares of the LEADER Growth & Income Fund,
   it must be received prior to the close of regular trading on the Exchange
   (generally 4:00 p.m. Eastern time) in order to receive the NAV calculated on
   that day. If your order is received after the close of regular trading on the
   Exchange that day, you will receive the NAV calculated on the next business
   day.

                                       27
<PAGE>   30

   SHAREHOLDER INFORMATION

   The Funds' (other than the Money Funds') securities, other than short-term
   debt obligations, are generally valued at current market prices unless market
   quotations are not available, in which case securities will be valued by a
   method that the Trust's Board of Trustees believes accurately reflects fair
   value. Debt obligations with remaining maturities of 60 days or less are
   valued at amortized cost or based on their acquisition cost.

   PURCHASING AND SELLING YOUR SHARES

   Institutional Shares of the LEADER Mutual Funds are available to investors
   through the Funds' Distributor or through certain banks or other financial
   institutions. If you are purchasing Institutional Shares through a financial
   institution, you must follow the procedures established by your institution.
   Your financial institution is responsible for sending your purchase order to
   the Fund's Distributor and wiring payment to the Fund's custodian. Your
   financial institution holds the shares in your name and receives all
   confirmations of purchases and sales. Financial institutions placing orders
   for themselves or on behalf of their customers should call the Fund at
   1-800-219-4182. The Fund reserves the right to refuse any order to buy
   shares.

   Investments in Institutional Shares of the Funds require a minimum investment
   of $1,000,000, which may be waived at the Adviser's or Distributor's
   discretion. If you purchase shares through a bank or other financial
   institution, these institutions may charge additional fees, require higher
   minimum investments or impose other limitations on buying and selling shares
   (such as an earlier cut-off time for purchase and sale requests). All
   purchases must be in U.S. dollars. Third-party checks are not accepted.

   Orders to sell or "redeem" Institutional Shares should be placed with the
   same financial institution that placed the original purchase order in
   accordance with the procedures established by that institution. Your
   financial institution is responsible for sending your order to the Fund's
   Distributor and for crediting your account with the proceeds. The Fund may
   charge a wire transfer fee of up to $15 per wire, and your financial
   institution may charge an additional fee.

   You may sell your shares on any day the Exchange is open for regular trading
   (except, in the case of the Money Funds only, Columbus Day and Veterans'
   Day). Your sales price will be the NAV next determined after your sell order
   is received by the Funds, the Transfer Agent, or your investment
   representative. See "Pricing of Fund Shares" above. Normally you will receive
   your proceeds within a week after your request is received. See section on
   "General Policies on Selling Shares" below.

   The Fund's Transfer Agent may require a signature guarantee unless the
   redemption proceeds are payable to the shareholder of record and the proceeds
   are either mailed to the shareholder's address of record or electronically
   transferred to the account designated on the original account application. A
   signature guarantee helps prevent fraud, and you may obtain one from most
   banks and broker/dealers. Contact the Fund for more information on signature
   guarantees.

   Special Note for Pre-9/1/00 Shareholders Only: Prior to the redesignation of
   Class A Shares as Institutional Shares on September 1, 2000, Class A Shares
   were subject to lower minimum initial investment requirements ranging from
   $100 to $250 and to minimum subsequent investment requirements ranging from
   $100 to $150. Shareholders of the Funds as of August 31, 2000 will continue
   to be eligible to buy Institutional Shares at these lower minimum investment
   levels, and may continue to participate in any Fund investment programs in
   which they were a participant as of August 31, 2000.
                                       28
<PAGE>   31

   SHAREHOLDER INFORMATION

   If you purchased shares through a financial intermediary, please follow the
   instructions for purchases and sales set forth above. For all other
   shareholders, you may continue to purchase or redeem shares by wire by
   calling 1-800-219-4182 for instructions. You may also continue to purchase or
   redeem shares by mail, by writing to: LEADER Mutual Funds, P.O. Box 182754,
   Columbus, OH 43218-2784 (for overnight mail: LEADER Mutual Funds, c/o BISYS
   Fund Services, Attn: T.A. Operations, 3435 Stelzer Road, Columbus, OH 43219).
   For additional purchases, please use the investment slip attached to your
   account statement, and indicate the fund name, amount invested, and your
   account name and number, and make your check, bank draft or money order
   payable to "LEADER Mutual Funds". Please include your account number on the
   check.

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

   REINVESTMENT OF DIVIDENDS AND DISTRIBUTIONS

   All dividends and distributions will be automatically reinvested unless you
   request otherwise. You can, however, elect to receive them in cash. Capital
   gains are distributed at least annually.

   DISTRIBUTIONS ARE MADE ON A PER SHARE BASIS REGARDLESS OF HOW LONG YOU'VE
   OWNED YOUR SHARES. THEREFORE, IF YOU INVEST SHORTLY BEFORE THE DISTRIBUTION
   DATE, SOME OF YOUR INVESTMENT MAY BE RETURNED TO YOU IN THE FORM OF A TAXABLE
   DISTRIBUTION.
   -----------------------------------------------------------------------------

                                       29
<PAGE>   32

   SHAREHOLDER INFORMATION

   GENERAL POLICIES ON SELLING SHARES

   VERIFYING TELEPHONE REDEMPTIONS

   The Trust has instituted procedures designed to ensure that telephone
   redemptions are made by authorized shareholders only. All telephone calls are
   recorded for your protection and you will be asked for information to verify
   your identity. By completing an account application, you agree that the
   Trust, Distributor and Transfer Agent will not be liable for any loss
   incurred by you by reason of the Trust accepting unauthorized telephone
   redemption requests for your account if the Trust reasonably believes the
   instructions to be genuine and has employed reasonable procedures to confirm
   the instructions communicated by telephone are genuine. The Trust may accept
   telephone redemption instructions from any person identifying himself as the
   owner of an account or the owner's broker where the owner has not declined in
   writing to utilize this service.

   REDEMPTIONS WITHIN 10 DAYS OF INITIAL INVESTMENT

   When you have made your initial investment by check, you may redeem any
   portion of it at any time. Proceeds from the redemption, however, will not be
   delivered to you until the Transfer Agent is satisfied that the check has
   cleared (which may require up to 10 business days). You can avoid this delay
   by purchasing shares with a certified check.

   REFUSAL OF REDEMPTION REQUEST

   The Funds may postpone payment for shares at times when the New York Stock
   Exchange is closed or under any emergency circumstances as determined by the
   SEC. If you experience difficulty making a telephone redemption during
   periods of drastic economic or market change, you can send the Funds your
   request by regular or express mail at LEADER Mutual Funds c/o BISYS Fund
   Services Attn: T.A. Operations 3435 Stelzer Road Columbus, OH 43219. The
   request should include your fund and account number, the amount you wish to
   redeem, the address where your check should be sent, and the account owner(s)
   signature.

   REDEMPTION IN KIND

   The Funds reserve the right to make payment in securities rather than cash,
   known as a "redemption in kind." This could occur under extraordinary
   circumstances, such as a very large redemption that could affect Fund
   operations (for example, more than 1% of a Fund's net assets), or in other
   circumstances where the Fund deems it to be in best interests of the Fund and
   its other shareholders. Redemptions in kind will consist of securities equal
   in market value to your shares. These securities will generally consist of
   liquid securities, but will not generally represent a pro rata share of the
   relevant Fund's assets. When you convert these securities to cash, you will
   pay brokerage charges.

   CLOSING OF SMALL ACCOUNTS

   If by reason of a redemption or exchange your account falls below the
   applicable minimum initial investment, the relevant Fund may ask you to
   increase your balance. If it is still below the minimum after 60 days, the
   Fund may close your account and send you the proceeds at the current NAV.

                                       30
<PAGE>   33

   SHAREHOLDER INFORMATION

   GENERAL POLICIES ON SELLING SHARES
   CONTINUED

   UNDELIVERABLE REDEMPTION CHECKS

   For any shareholder who chooses to receive distributions in cash: If
   distribution checks (1) are returned and marked as "undeliverable" or (2)
   remain uncashed for six months, your account will be changed automatically so
   that all future distributions are reinvested in your account. Checks that
   remain uncashed for six months will be canceled and the money reinvested in
   the appropriate Fund.

   DISTRIBUTION ARRANGEMENTS

   Institutional Shares are sold through the Distributor, and are available for
   purchase primarily by financial institutions, such as banks, trust companies,
   thrift institutions, mutual funds or other financial institutions acting on
   their own behalf or on behalf of their qualified accounts as well as by
   shareholders of LEADER Mutual Funds as of August 31, 2000.

   EXCHANGING YOUR SHARES

   You can exchange your Institutional Shares in one Fund for Institutional
   Shares of another LEADER Mutual Fund (see "Notes on Exchanges" below). No
   transaction fees are charged in connection with such exchanges.

   You must meet the minimum investment requirements for the Fund into which you
   are exchanging. Exchanges from one Fund to another are taxable.

   INSTRUCTIONS FOR EXCHANGING SHARES

   Exchanges may be made by sending a written request to LEADER Mutual Funds,
   P.O. Box 182754, Columbus OH 43218-2784, or by calling 1-800-219-4182. Please
   provide the following information:

     - Your name and telephone number

     - The exact name on your account and account number

     - Taxpayer identification number (usually your Social Security number)

     - Dollar value or number of shares to be exchanged

     - The name and class of the Fund from which the exchange is to be made

     - The name and class of the Fund into which the exchange is being made

   See "General Policies on Selling Shares" above for important information
   about telephone transactions.

   NOTES ON EXCHANGES

   The registration and taxpayer identification numbers of the two accounts must
   be identical. If you don't have an account with the new Fund, a new account
   will be opened with the same features unless you write to tell us to change
   them.

   The Exchange Privilege may be modified or eliminated at any time with 60 days
   notice.

   The exchange privilege is available only in states where shares of the new
   Fund may be sold.

                                       31
<PAGE>   34

   SHAREHOLDER INFORMATION

   EXCHANGING YOUR SHARES
   CONTINUED

   If shares of a Fund are purchased by check, those shares cannot be exchanged
   until your check has cleared, which could take up to 10 days.

   All exchanges are based on the relative net asset value next determined after
   the exchange order is received by the Funds. Be sure to read the Prospectus
   carefully of any Fund into which you wish to exchange shares.
   DIVIDENDS AND DISTRIBUTIONS

   The Funds pay dividends to their shareholders from the Funds' respective net
   investment income. The Funds distribute any net capital gains that have been
   realized. Income dividends on the Growth & Income Fund and the Balanced Fund
   are declared and paid quarterly, while income dividends for all other Funds
   are declared daily and paid monthly. Capital gains, if any, for all Funds are
   distributed at least annually.
   TAXATION

   FEDERAL TAXES

   Each Fund intends to qualify as a "regulated investment company" for federal
   income tax purposes and to meet all other requirements necessary for it to be
   relieved of federal taxes on income and gains it distributes to shareholders.
   Each Fund contemplates declaring as dividends each year all or substantially
   all of its taxable income, including its net capital gain (the excess of net
   long-term capital gain over net short-term capital loss). You will be subject
   to income tax on these distributions regardless of whether they are paid in
   cash or reinvested in additional shares. Distributions properly designated by
   a Fund as derived from net capital gain of a Fund will be taxable to you as
   such, regardless of how long you have held your shares. Other Fund
   distributions (other than "exempt-interest dividends" paid by the Tax-Exempt
   Bond Fund or the Tax-Exempt Money Market Fund) will generally be taxable as
   ordinary income.

   The Tax-Exempt Bond Fund and the Tax-Exempt Money Market Fund (the
   "Tax-Exempt Funds") intend to distribute primarily income that is exempt from
   federal taxation. The Tax-Exempt Funds may, however, invest in securities
   that generate income that is not exempt from federal taxation. In addition,
   income that is exempt from federal taxation may be subject to state and local
   taxation. Any capital gains will be taxable federally and may also be subject
   to state or local taxation. Distributions designated by the Tax-Exempt Funds
   as "exempt-interest dividends" are not generally subject to federal income
   tax. However, if you receive social security or railroad retirement benefits,
   you should consult your tax adviser to determine what effect, if any, an
   investment in a Tax-Exempt Fund may have on the federal taxation of your
   benefits. In addition, an investment in a Tax-Exempt Fund may result in
   liability for federal alternative minimum tax, both for corporate and
   individual shareholders. You will be notified annually of the tax status of
   distributions to you.

                                       32
<PAGE>   35

   SHAREHOLDER INFORMATION

   TAXATION
   CONTINUED

   You should note that if you purchase shares just prior to a capital gain
   distribution, the purchase price will reflect the amount of the upcoming
   distribution, but you will be taxed on the entire amount of the distribution
   received, even though, as an economic matter, the distribution simply
   constitutes a return of capital. This is known as "buying into a dividend."

   You will generally recognize taxable gain or loss on a sale, exchange or
   redemption of your shares, including an exchange for shares of another Fund
   based on the difference between your tax basis in the shares and the amount
   you receive for them. In the case of the Money Funds, however, the
   recognition of gain or loss on a sale, exchange or redemption of your shares
   is unlikely to occur. (To aid in computing your tax basis, you should retain
   your account statements for the periods during which you held shares.) Any
   loss realized on shares held for six months or less will be treated as a
   long-term capital loss to the extent of any capital gain dividends that were
   received on the shares.

   One notable exception to these tax principles is that distributions on, and
   sales, exchanges and redemptions of, shares held in an Individual Retirement
   Account (or IRA) or other tax-qualified plan will not be currently taxable.

   The foregoing is a summary of certain federal income tax consequences of
   investing in the Funds. For more information on the federal income taxation
   of the Funds, see the SAI. You should consult your tax adviser to determine
   the precise effect of an investment in the Funds on your particular tax
   situation (including possible liability for state and local taxes).

                                       33
<PAGE>   36

 [GRAPHIC]
            FINANCIAL HIGHLIGHTS

   FINANCIAL HIGHLIGHTS
   (FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD)

   The Financial Highlights tables are intended to help you understand each
   Fund's financial performance for the last five years or, in the case of the
   Tax-Exempt Bond Fund and Money Market Fund, since inception. Certain
   information reflects financial results for a single Fund share. The total
   returns in the tables represent the rate that an investor would have earned
   or lost on an investment in a Fund (assuming reinvestment of all dividends
   and distributions). Except as otherwise noted below, this information has
   been audited by PricewaterhouseCoopers LLP, whose report, along with the
   Trust's financial statements, is incorporated by reference in the Trust's
   SAI, which is available upon request. Institutional Shares are the
   continuation of the Fund's single class of shares, Class A Shares, which
   existed prior to September 1, 2000. Class A Shares were redesignated as
   "Institutional Shares" effective September 1, 2000.

   LEADER GROWTH & INCOME FUND -- INSTITUTIONAL SHARES

<TABLE>
<CAPTION>
                                                YEAR         YEAR         YEAR         YEAR         YEAR
                                               ENDED        ENDED        ENDED        ENDED        ENDED
                                             AUGUST 31,   AUGUST 31,   AUGUST 31,   AUGUST 31,   AUGUST 31,
                                                2000         1999         1998         1997         1996
    <S>                                      <C>          <C>          <C>          <C>          <C>
    NET ASSET VALUE -- BEGINNING OF PERIOD    $  30.37     $  23.46     $ 22.18      $ 16.42      $ 14.05
    -------------------------------------------------------------------------------------------------------
    INCOME FROM INVESTMENT OPERATIONS:
      Net investment income                       0.32         0.30        0.23         0.26         0.24
      Net realized and unrealized gains
        from investment transactions              4.75         7.53        1.72         6.12         2.39
    -------------------------------------------------------------------------------------------------------
        Total income from investment
          operations                              5.07         7.83        1.95         6.38         2.63
    -------------------------------------------------------------------------------------------------------
    LESS DISTRIBUTIONS:
      Net investment income                      (0.32)       (0.27)      (0.25)       (0.25)       (0.23)
      Net realized gain from investment
        transactions                             (0.15)       (0.65)      (0.42)       (0.37)       (0.03)
    -------------------------------------------------------------------------------------------------------
        Total dividends and distributions        (0.47)       (0.92)      (0.67)       (0.62)       (0.26)
    -------------------------------------------------------------------------------------------------------
    NET ASSET VALUE -- END OF PERIOD          $  34.97     $  30.37     $ 23.46      $ 22.18      $ 16.42
    -------------------------------------------------------------------------------------------------------
    Total return(1)                              16.80%       33.73%       8.84%       39.59%       18.77%
    RATIOS AND SUPPLEMENTAL DATA:
      Net assets, at end of period ($000's)   $177,528     $145,919     $74,131      $70,276      $39,995
      Ratio of expenses to average net
        assets                                    0.82%        0.87%       0.99%        1.06%        1.27%
      Ratio of net investment income to
        average net assets                        0.99%        1.05%       0.96%        1.36%        1.56%
      Ratio of expenses to average net
        assets without fee waivers*               1.32%        1.37%       1.49%        1.56%        1.77%
      Ratio of net investment income to
        average net assets without fee
        waivers*                                  0.49%        0.55%       0.46%        0.86%        1.06%
      Portfolio turnover rate                       17%           9%         26%          17%          31%
</TABLE>

* During the period certain fees were voluntarily reduced. If such voluntary fee
  reductions had not occurred, the ratios would have been as indicated.

(1) Had the Adviser, Distributor, and administrator not reduced or waived
    certain expenses, total returns would have been lower. Total returns for
    periods of less than one year are not annualized.

                                       34

<PAGE>   37

 FINANCIAL HIGHLIGHTS

   FINANCIAL HIGHLIGHTS
   CONTINUED
   (FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD)

   LEADER TAX-EXEMPT BOND FUND -- INSTITUTIONAL SHARES

<TABLE>
<CAPTION>
                                                                      JULY 24,
                                                                        2000*
                                                                       THROUGH
                                                                     AUGUST 31,
                                                                        2000
    <S>                                                           <C>
    NET ASSET VALUE -- BEGINNING OF PERIOD                            $  10.00
    -------------------------------------------------------------------------------
    INCOME FROM INVESTMENT OPERATIONS:
      Net investment income                                               0.05
      Net realized and unrealized gains (losses) from investment
        transactions                                                      0.07
    -------------------------------------------------------------------------------
        Total income from investment operations                           0.12
    -------------------------------------------------------------------------------
    LESS DISTRIBUTIONS:
      Net investment income                                             (0.05)
    -------------------------------------------------------------------------------
        Total dividends and distributions                               (0.05)
    -------------------------------------------------------------------------------
    NET ASSET VALUE -- END OF PERIOD                                  $  10.07
    -------------------------------------------------------------------------------
    Total return(1)                                                       1.16%(2)
    RATIOS AND SUPPLEMENTAL DATA:
      Net assets, at end of period ($000's)                           $ 22,261
      Ratio of expenses to average net assets                             0.87%(3)
      Ratio of net investment income to average net assets                4.26%(3)
      Ratio of expenses to average net assets without fee
        waivers**                                                         1.32%(3)
      Ratio of net investment income to average net assets
        without fee waivers**                                             3.81%(3)
      Portfolio turnover rate                                                9%(3)
</TABLE>

* Commencement of operations.

** During the period certain fees were voluntarily reduced. If such voluntary
   fee reductions had not occurred, the ratios would have been as indicated.

(1) Total return excludes sales charges. Had the Adviser, Distributor, and
    administrator not reduced or waived certain expenses, total returns would
    have been lower. Total returns for periods of less than one year are not
    annualized.

(2)  Not annualized.

(3)  Annualized.

                                       35
<PAGE>   38

 FINANCIAL HIGHLIGHTS

   FINANCIAL HIGHLIGHTS
   CONTINUED
   (FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD)

   LEADER INTERMEDIATE
   GOVERNMENT BOND FUND -- INSTITUTIONAL SHARES

<TABLE>
<CAPTION>
                                                YEAR         YEAR         YEAR         YEAR         YEAR
                                               ENDED        ENDED        ENDED        ENDED        ENDED
                                             AUGUST 31,   AUGUST 31,   AUGUST 31,   AUGUST 31,   AUGUST 31,
                                                2000         1999         1998         1997         1996
    <S>                                      <C>          <C>          <C>          <C>          <C>
    NET ASSET VALUE -- BEGINNING OF PERIOD    $  12.04     $ 13.00      $ 12.61      $ 12.43      $ 12.75
    -------------------------------------------------------------------------------------------------------
    INCOME FROM INVESTMENT OPERATIONS:
      Net investment income                       0.74        0.72         0.76         0.79         0.76
      Net realized and unrealized gains
        (losses) from investment
        transactions                             (0.07)      (0.96)        0.39         0.19        (0.32)
    -------------------------------------------------------------------------------------------------------
        Total income from investment
          operations                              0.67       (0.24)        1.15         0.98         0.44
    -------------------------------------------------------------------------------------------------------
    LESS DISTRIBUTIONS:
      Net investment income                      (0.74)      (0.72)       (0.76)       (0.79)       (0.76)
      In excess of net investment income            --          --           --        (0.01)          --
    -------------------------------------------------------------------------------------------------------
        Total dividends and distributions        (0.74)      (0.72)       (0.76)       (0.80)       (0.76)
    -------------------------------------------------------------------------------------------------------
    NET ASSET VALUE -- END OF PERIOD          $  11.97     $ 12.04      $ 13.00      $ 12.61      $ 12.43
    -------------------------------------------------------------------------------------------------------
    Total return(1)                               5.86%      (1.97)%       9.33%        7.96%        3.48%
    RATIOS AND SUPPLEMENTAL DATA:
      Net assets, at end of period ($000's)   $131,101     $80,607      $72,614      $64,459      $56,764
      Ratio of expenses to average net
        assets                                    0.79%       0.82%        0.90%        0.96%        1.05%
      Ratio of net investment income to
        average net assets                        6.28%       5.69%        5.92%        6.15%        5.97%
      Ratio of expenses to average net
        assets without fee waivers*               1.14%       1.17%        1.25%        1.31%        1.40%
      Ratio of net investment income to
        average net assets without fee
        waivers*                                  5.93%       5.34%        5.57%        5.80%        5.62%
      Portfolio turnover rate                       14%         16%          32%          19%          20%
</TABLE>

*  During the period certain fees were voluntarily reduced. If such voluntary
   fee reductions had not occurred, the ratios would have been as indicated.

(1)  Had the Adviser, Distributor, and administrator not reduced or waived
     certain expenses, total returns would have been lower. Total returns for
     periods of less than one year are not annualized.

                                       36

<PAGE>   39

   FINANCIAL HIGHLIGHTS

   FINANCIAL HIGHLIGHTS
   CONTINUED
   (FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD)

   LEADER MONEY MARKET FUND -- INSTITUTIONAL SHARES

<TABLE>
<CAPTION>
                                                                                     JULY 7,
                                                                       YEAR           1999*
                                                                      ENDED          THROUGH
                                                                    AUGUST 31,      AUGUST 31,
                                                                       2000            1999
    <S>                                                             <C>             <C>
    NET ASSET VALUE -- BEGINNING OF PERIOD                           $  1.000        $  1.000
    ------------------------------------------------------------------------------------------
    INCOME FROM INVESTMENT OPERATIONS:
      Net investment income                                             0.055           0.007
    ------------------------------------------------------------------------------------------
        Total income from investment operations                         0.055           0.007
    ------------------------------------------------------------------------------------------
    LESS DISTRIBUTIONS:
      Net investment income                                           (0.055)          (0.007)
        Total dividends and distributions                             (0.055)          (0.007)
    ------------------------------------------------------------------------------------------
    NET ASSET VALUE -- END OF PERIOD                                 $  1.000        $  1.000
    ------------------------------------------------------------------------------------------
    Total return(1)                                                      5.60%           0.67%(2)
    RATIOS AND SUPPLEMENTAL DATA:
      Net assets, at end of period ($000's)                          $276,186        $166,335
      Ratio of expenses to average net assets                            0.51%           0.51%(3)
      Ratio of net investment income to average net assets               5.50%           4.35%(3)
      Ratio of expenses to average net assets without fee
        waivers**                                                        1.02%           1.02%(3)
      Ratio of net investment income to average net assets
        without fee waivers**                                            4.99%           3.84%(3)
</TABLE>

*  Commencement of operations.

** During the period certain fees were voluntarily reduced. If such voluntary
   fee reductions had not occurred, the ratios would have been as indicated.

(1) Had the Adviser, Distributor, and administrator not reduced or waived
    certain expenses, total returns would have been lower.

(2) Not annualized.

(3) Annualized.

                                       37
<PAGE>   40

The following additional information regarding LEADER Mutual Funds (formerly
"Magna Funds") is available to you upon request and without charge.

ANNUAL/SEMI-ANNUAL REPORTS (REPORTS):

The Funds' Reports to shareholders contain additional information regarding the
Funds' investments. In the Annual Report, you will find a discussion of the
market conditions and investment strategies that significantly affected the
Funds' performance during their last fiscal year.

STATEMENT OF ADDITIONAL INFORMATION (SAI):

The SAI provides more detailed information about the Funds, including their
operations and investment policies. It is incorporated by reference and is
legally considered to be part of this prospectus.

You can get free copies of the Reports and the SAI, or request other information
and discuss your questions about the Funds by contacting a broker or other
financial institution that sells shares of the Funds, or by contacting the Funds
directly at:

                            LEADER MUTUAL FUNDS
                            P.O. BOX 182754
                            COLUMBUS, OHIO 43218-2784
                            TELEPHONE: 1-800-219-4182

You can review the Reports and the SAI at the Public Reference Room of the
Securities and Exchange Commission (the "SEC") in Washington, D.C. You can get
copies:

- For a duplicating fee, by writing the Public Reference Section of the SEC,
  Washington, D.C. 20549-0102, by calling the SEC at 1-202-942-8090, or by
  electronic request at the following e-mail address: [email protected].

- At no charge from the SEC's Website at http://www.sec.gov.

Investment Company Act file no. 811-8494


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