ONE GROUP INVESTMENT TRUST
485BPOS, 1999-03-26
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<PAGE>   1

     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON March 26, 1999
                    Securities Act Registration No. 33--66080
                Investment Company Act Registration No. 811-7874

                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM N-lA

          REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 / X /

                      POST-EFFECTIVE AMENDMENT NO. 11 / X /

                                       and

          REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT / X /
                                     OF 1940

                             AMENDMENT NO. 13 / X /

                          ONE GROUP(R) INVESTMENT TRUST
               (Exact Name of Registrant as Specified in Charter)

                             THREE NATIONWIDE PLAZA
                              COLUMBUS, OHIO 43215
                    (Address of Principal Executive Offices)

                                 (614) 249-7111
                         (Registrant's Telephone Number)

                               CHRISTOPHER A. CRAY
                             THREE NATIONWIDE PLAZA
                              COLUMBUS, OHIO 43215
                     (Name and Address of Agent for Service)

                                   Copies To:

<TABLE>
<S>                                         <C>
Alan G. Priest, Esquire                     Elizabeth Davin, Esquire
Ropes & Gray                                Druen, Dietrich, Reynolds & Koogler
One Franklin Square                         One Nationwide Plaza
1301 K Street, N.W., Suite 800E             Columbus, Ohio  43216
Washington, D.C.  20005
</TABLE>

Approximate Date of Proposed Public Offering: Immediately upon effectiveness

It is proposed that this filing will become effective (check appropriate box)

           / /     Immediately upon filing pursuant to paragraph (b)
           /X/     on March 31, 1999 pursuant to paragraph (b)
           / /     60 days after filing pursuant to paragraph (a)(1) 
           / /     on (DATE) pursuant to paragraph (a)(1) 
<PAGE>   2
           / /     75 days after filing pursuant to paragraph (a)(2) 
           / /     on (DATE) pursuant to paragraph (a)(2) of
                   Rule 485.

If appropriate, check the following box:

         /x/      This post-effective amendment designates a new effective date
                  for a previously filed post-effective amendment.


   
     Title of Securities Being Registered: Units of Beneficial Interest, without
     par value. 

    
   
     In accordance with Rules 24f-1 and 24f-2 under the Investment Company Act
     of 1940, upon the effective date of its registration statement, Registrant
     shall be deemed to have registered an indefinite amount of securities and
     will pay registration fees no later than 90 days after its fiscal year end.
    


                                       2
<PAGE>   3
                          ONE GROUP(R) INVESTMENT TRUST

                              CROSS REFERENCE SHEET


<TABLE>
<CAPTION>
Form N-1A Part A Item                                                                Prospectus Caption
- ---------------------                                                                ------------------
<S>                                                                                  <C>
1. Front and Back Cover Pages .......................................                Cover Pages

2. Risk/Return Summary: Investments, Risks and Performance ..........                Risk/Return Summaries

3. Risk/Return Summary: Fee Table ...................................                Not Applicable--Fund offers
                                                                                     shares exclusively to one
                                                                                     account

4. Investment Objectives, Principal Investment Strategies,                           More About the Portfolios;
   and Related Risks ................................................                Principal Investment Strategies

5. Management's Discussion of Fund Performance ......................                Not Applicable--Information
                                                                                     included in Fund's Annual
                                                                                     Report

6. Management, Organization, and Capital Structure ..................                Management of the Portfolios

7. Shareholder Information ..........................................                Shareholder Information

8. Distribution Arrangements ........................................                Not Applicable

9. Financial Highlights Information .................................                Financial Highlights
</TABLE>


                                       3
<PAGE>   4
<TABLE>
<CAPTION>
                                                                         STATEMENT OF
                                                                         ADDITIONAL INFORMATION
FORM N-1A PART B ITEM                                                       CAPTION
- ---------------------                                                    ----------------------
<S>                                                                    <C>

10. Cover Page and Table of Contents                                   Cover Page and Table of Contents

11. Fund History                                                       The Trust

12. Description of the Fund and Its Investments and Risks              The Trust; Additional Information -
                                                                       Description of Shares

13. Management of the Fund                                             Management of the Trust

14. Control Persons and Principal                                      Additional Information - Shareholders
      Holders of Securities

15. Investment Advisory and Other                                      Management of the Trust
         Services

16. Brokerage Allocation and Other Practices                           Management of the Trust

17. Capital Stock and Other Securities Valuation;                      Valuation; Additional Information
                                                                       Regarding the Calculation of Per Share Net
                                                                       Asset Value

18. Purchase, Redemption and Pricing of Shares                         Valuation; Additional Information
                                                                       Regarding the Calculation Per Share Net
                                                                       Asset Value

19. Taxation of the Fund                                               Investment Objectives and Policies -
                                                                       Additional Tax Information Concerning All
                                                                       Funds

20. Underwriters                                                       Not Applicable

21. Calculation of Performance Data                                    Additional Information - Calculation of
                                                                       Performance Data

22. Financial Statements                                               Financial Statements
</TABLE>


PART C

Information required to be included in Part C is set forth under the appropriate
Item, so numbered, in Part C of the Registration Statement.


                                       4




<PAGE>   5
 
ONE GROUP(R) INVESTMENT TRUST
 
   
<TABLE>
<S>                         <C>
PROSPECTUS                  ONE GROUP INVESTMENT TRUST BOND PORTFOLIO
MARCH 31, 1999              ONE GROUP INVESTMENT TRUST GOVERNMENT BOND PORTFOLIO
                            ONE GROUP INVESTMENT TRUST BALANCED PORTFOLIO
                            ONE GROUP INVESTMENT TRUST LARGE CAP GROWTH PORTFOLIO
                            ONE GROUP INVESTMENT TRUST EQUITY INDEX PORTFOLIO
                            ONE GROUP INVESTMENT TRUST DIVERSIFIED EQUITY PORTFOLIO
                            ONE GROUP INVESTMENT TRUST MID CAP GROWTH PORTFOLIO
                            ONE GROUP INVESTMENT TRUST DIVERSIFIED MID CAP PORTFOLIO
                            ONE GROUP INVESTMENT TRUST MID CAP VALUE PORTFOLIO
</TABLE>
    
 
   
The Securities and Exchange
Commission has not approved or
disapproved the shares of any
of the Portfolios as an
investment or determined
whether this prospectus is
accurate or complete. Anyone
who tells you otherwise is
committing a crime.
    
<PAGE>   6
 
TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                                PAGE
                                                                ----
<S>                                                             <C>
RISK/RETURN SUMMARIES                                             3
  One Group Investment Trust Bond Portfolio                       3
  One Group Investment Trust Government Bond Portfolio            5
  One Group Investment Trust Balanced Portfolio                   7
  One Group Investment Trust Large Cap Growth Portfolio           9
  One Group Investment Trust Equity Index Portfolio              11
  One Group Investment Trust Diversified Equity Portfolio        12
  One Group Investment Trust Mid Cap Growth Portfolio            14
  One Group Investment Trust Diversified Mid Cap Portfolio       16
  One Group Investment Trust Mid Cap Value Portfolio             18
MORE ABOUT THE PORTFOLIOS                                        20
  Types of Portfolios                                            20
  One Group Investment Trust                                     20
  Portfolio Quality                                              20
  Temporary Defensive Positions                                  21
  Portfolio Turnover                                             21
SHAREHOLDER INFORMATION                                          22
  Pricing of Portfolio Shares                                    22
  Purchase of Portfolio Shares                                   22
  Redemption of Portfolio Shares                                 22
  Voting and Meetings                                            22
  Dividends                                                      22
  Questions                                                      23
  Tax Information                                                23
  Qualified Plans                                                23
MANAGEMENT OF THE PORTFOLIOS                                     24
  The Advisor                                                    24
  The Portfolio Managers                                         25
  Year 2000                                                      25
PRINCIPAL INVESTMENT STRATEGIES                                  26
FINANCIAL HIGHLIGHTS                                             29
APPENDIX A: INVESTMENT PRACTICES                                A-1
</TABLE>
    
 
                                        2
<PAGE>   7
 
                             RISK/RETURN SUMMARIES
 
   
ONE GROUP INVESTMENT TRUST BOND PORTFOLIO
    
 
   
WHAT IS THE GOAL OF THE BOND PORTFOLIO?
    
 
The Portfolio seeks to maximize total return by investing primarily in a
diversified portfolio of intermediate and long-term debt securities. (The
Portfolio was formerly called the Bond Fund).
 
   
WHAT ARE THE BOND PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
    
 
   
The Portfolio invests mainly in investment grade bonds and debt securities.
These include mortgage-backed and other types of asset-backed securities, which
generally are derivatives (see below). Banc One Investment Advisors selects
securities for the Portfolio by analyzing both individual securities and
different market sectors. Rather than attempting to time the market, Banc One
Investment Advisors looks for market sectors and individual securities that it
believes will perform well over time. Banc One Investment Advisors selects
individual securities after performing a risk/reward analysis that includes an
evaluation of interest rate risk, credit risk, and structural risk. For more
information about the Bond Portfolio's investment strategies, please read "More
About the Portfolios" and "Principal Investment Strategies."
    
 
   
WHAT IS A "BOND"?
    
 
A "bond" is a debt security with a remaining maturity of ninety days or more
issued by the U.S. Government or its agencies and instrumentalities, a
corporation, or a municipality, securities issued or guaranteed by a foreign
government or its agencies and instrumentalities, securities issued or
guaranteed by domestic and supranational banks, mortgage-related and
mortgage-backed securities, asset-backed securities, stripped government
securities, and zero coupon obligations.
 
   
WHAT ARE THE MAIN RISKS OF INVESTING IN THE BOND PORTFOLIO?
    
 
The main risks of investing in the Bond Portfolio and the circumstances likely
to adversely affect your investment are described below. Like all non-money
market mutual funds, the share price of the Bond Portfolio and its yield will
change every day in response to interest rates and other market conditions. You
may lose money if you invest in the Bond Portfolio.
 
   
     Interest Rate Risk. The Bond Portfolio mainly invests in bonds and other
     debt securities. These securities will increase or decrease in value based
     on changes in interest rates. When interest rates go up, the value of the
     Portfolio's investments generally goes down. On the other hand, if interest
     rates go down, the value of the Portfolio's investments generally goes up.
     Your investment will decline in value if the value of the Portfolio's
     investments decrease.
    
 
     Credit Risk. There is a risk that issuers and counterparties will not make
     payments on securities and repurchase agreements held by the Portfolio. In
     addition, the credit quality of securities held by the Portfolio may be
     lowered if an issuer's financial condition changes. Lower credit quality
     may lead to greater volatility in the price of a security and in shares of
     a Portfolio. Lower credit quality also may affect a security's liquidity
     and make it difficult for the Portfolio to sell.
 
   
     Prepayment Risk. As part of its main investment strategies, the Portfolio
     invests in mortgage-backed and asset-backed securities. The issuers of
     these securities may be able to repay principal in advance, especially when
     interest rates fall. Changes in pre-payment rates can make the price and
     yield of mortgage and asset-backed securities volatile. When mortgage and
     other obligations are pre-paid, the Portfolio may have to reinvest in
     securities with a lower yield. The Portfolio also may fail to recover
     premiums paid for the securities, resulting in an unexpected capital loss.
    
 
   
     Derivative Risk. The Portfolio invests in securities that are considered to
     be DERIVATIVES. The value of derivative securities (like mortgage-backed
     securities or asset-backed securities) is dependent upon the performance of
     underlying assets or securities. If the underlying assets do not perform as
     expected, the value
    
 
                                        3
<PAGE>   8
 
     of the derivative security and your investment in the Portfolio declines.
     Derivatives are more volatile and are riskier in terms of both liquidity
     and value than traditional investments.
 
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
 
   
HOW HAS THE BOND PORTFOLIO PERFORMED?
    
 
   
The chart and tables below help show how the Bond Portfolio's performance may
vary. The chart and tables reflect that the Bond Portfolio inherited the
financial history of the Pegasus Variable Bond Fund. This information may help
you evaluate the risks of investing in the Portfolio. The chart and Highest and
Lowest Return table show the Portfolio's performance for calendar year 1998, the
Portfolio's first full calendar year of operations. The Average Annual Total
Return table shows how the Portfolio's average annual returns for the periods
indicated compare to those of a broad measure of market performance. Total
returns assume reinvestment of dividends and distributions. The returns in the
chart and the tables below do not reflect insurance separate account charges. If
these charges were included, the returns would be lower than those shown. PLEASE
REMEMBER THAT THE BOND PORTFOLIO'S PERFORMANCE IN THE PAST IS NOT NECESSARILY AN
INDICATION OF HOW THE PORTFOLIO WILL PERFORM IN THE FUTURE.
    
ONE GROUP INVESTMENT TRUST BOND PORTFOLIO [BAR GRAPH]
 
<TABLE>
<CAPTION>
'1998'                                                                           8.66
- ------                                                                           ----
<S>                                                           <C>
</TABLE>
 
  HIGHEST AND LOWEST RETURN
       (QUARTERLY 1998)
 
   
<TABLE>
<CAPTION>
                                                           QUARTER ENDING
                                                         ------------------
<S>                                            <C>       <C>
     Highest.................................    4.78%   September 30, 1998
     Lowest..................................  - 0.11%    December 31, 1998
</TABLE>
    
 
AVERAGE ANNUAL TOTAL RETURNS
(THROUGH DECEMBER 31, 1998)
 
   
<TABLE>
<CAPTION>
                                                                  LIFE OF FUND
                                                       1 YEAR    (SINCE 5/1/97)
                                                       ------    --------------
<S>                                                    <C>       <C>
One Group Investment Trust Bond Portfolio............   8.66%        10.21%
Lehman Brothers Aggregate Bond Index(1)..............   8.69%        10.46%
</TABLE>
    
 
   
(1) The Lehman Brothers Aggregate Bond Index is an unmanaged index generally
    representative of the bond market as a whole.
    
 
                                        4
<PAGE>   9
 
ONE GROUP INVESTMENT TRUST GOVERNMENT BOND PORTFOLIO
 
WHAT IS THE GOAL OF THE GOVERNMENT BOND PORTFOLIO?
 
The Portfolio seeks a high level of current income with liquidity and safety of
principal. (The Portfolio was formerly called the Government Bond Fund).
 
WHAT ARE THE GOVERNMENT BOND PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
   
The Portfolio mainly invests in Government Bonds. These include mortgage-backed
securities which generally are derivatives (see below). Banc One Investment
Advisors selects securities for the Portfolio by analyzing both individual
securities and different market sectors. Rather than attempting to time the
market, Banc One Investment Advisors looks for individual securities that it
believes will perform well over time. The Government Bond Portfolio spreads its
holdings across various security types within the Government market sector. Banc
One Investment Advisors selects individual securities after performing a
risk/reward analysis that includes an evaluation of interest rate risk, credit
risk, and structural risk. For more information about the Government Bond
Portfolio's investment strategies, please read "More About the Portfolios" and
"Principal Investment Strategies."
    
 
WHAT IS A "GOVERNMENT BOND"?
 
A "government bond" is a debt instrument with principal and interest guaranteed
by the U.S. Government and its agencies and instrumentalities, as well as
stripped government securities and mortgage-related and mortgage-backed
securities.
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE GOVERNMENT BOND PORTFOLIO?
 
The main risks of investing in the Government Bond Portfolio and the
circumstances likely to adversely affect your investment are described below.
Like all non-money market mutual funds, the share price of the Government Bond
Portfolio and its yield will change every day in response to interest rates and
other market conditions. You may lose money if you invest in the Government Bond
Portfolio.
 
   
     Interest Rate Risk. The Government Bond Portfolio mainly invests in bonds
     and other debt securities. These securities will increase or decrease in
     value based on changes in interest rates. When interest rates go up, the
     value of the Portfolio's investments generally goes down. On the other
     hand, if interest rates go down, the value of the Portfolio's investments
     generally goes up. Your investment will decline in value if the value of
     the Portfolio's investments decrease.
    
 
   
     Yield. The Portfolio generally invests in investment grade U.S. Government
     Securities. While these investments are considered to be less risky than
     other types of securities, the Portfolio's ability to achieve higher income
     is not as great as that of funds that invest in lower-quality, higher risk
     instruments.
    
 
   
     Prepayment Risk. As part of its main investment strategies, the Portfolio
     invests in mortgage-backed and asset-backed securities. The issuers of
     these securities may be able to repay principal in advance, especially when
     interest rates fall. Changes in pre-payment rates can make the price and
     yield of mortgage and asset-backed securities volatile. When mortgage and
     other obligations are pre-paid, the Portfolio may have to reinvest in
     securities with a lower yield. The Portfolio may also fail to recover
     premiums paid for the securities, resulting in an unexpected capital loss.
    
 
     Derivative Risk. The Portfolio invests in securities that are considered to
     be DERIVATIVES. The value of derivative securities (like mortgage-backed
     securities or asset-backed securities) is dependent upon the performance of
     underlying assets or securities. If the underlying assets do not perform as
     expected, the value of the derivative security and your investment in the
     Portfolio declines. Derivatives are more volatile and are riskier in terms
     of both liquidity and value than traditional investments.
 
                                        5
<PAGE>   10
 
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
 
   
HOW HAS THE GOVERNMENT BOND PORTFOLIO PERFORMED?
    
 
   
The chart and tables below help show how the Government Bond Portfolio's
performance may vary. This may help you evaluate the risks of investing in the
Portfolio. The chart and Highest and Lowest Return table show changes in the
Portfolio's performance from year to year. The Average Annual Total Return table
shows how the Portfolio's average annual returns for the periods indicated
compare to those of a broad measure of market performance. Total returns assume
reinvestment of dividends and distributions. The returns in the chart and the
tables below do not reflect insurance separate account charges. If these charges
were included the returns would be lower than those shown. PLEASE REMEMBER THAT
THE GOVERNMENT BOND PORTFOLIO'S PERFORMANCE IN THE PAST IS NOT NECESSARILY AN
INDICATION OF HOW THE PORTFOLIO WILL PERFORM IN THE FUTURE.
    
ONE GROUP INVESTMENT TRUST GOVERNMENT BOND PORTFOLIO [BAR GRAPH]
 
<TABLE>
<CAPTION>
'1995'                                                                           16.69
- ------                                                                           -----
<S>                                                           <C>
'1996'                                                                           2.69
'1997'                                                                           9.67
'1998'                                                                           7.32
</TABLE>
 
   
  HIGHEST AND LOWEST RETURN
    
   
    (QUARTERLY 1995-1998)
    
 
   
<TABLE>
<CAPTION>
                                                          QUARTER ENDING
                                                        ------------------
<S>                                            <C>      <C>
     Highest.................................   5.00%        June 30, 1995
     Lowest..................................  -2.05%       March 31, 1996
</TABLE>
    
 
   
  AVERAGE ANNUAL TOTAL RETURNS
    
  (THROUGH DECEMBER 31, 1998)
 
   
<TABLE>
<CAPTION>
                                                                  LIFE OF FUND
                                                       1 YEAR    (SINCE 8/1/94)
                                                       ------    --------------
<S>                                                    <C>       <C>
One Group Investment Trust Government Bond
  Portfolio..........................................   7.32%         7.87%
Salomon Brothers 3-7 Year Treasury Index(1)..........   9.47%         8.15%
</TABLE>
    
 
   
(1) The Salomon Brothers 3-7 Year Treasury Index is an unmanaged index of the
    average yield of treasury notes and bonds with maturities ranging from 3-7
    years.
    
 
                                        6
<PAGE>   11
 
ONE GROUP INVESTMENT TRUST BALANCED PORTFOLIO
 
WHAT IS THE GOAL OF THE BALANCED PORTFOLIO?
 
The Portfolio seeks to provide total return while preserving capital. (The
Portfolio was formerly called the Asset Allocation Fund).
 
WHAT ARE THE BALANCED PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
   
The Portfolio invests in a combination of stocks (including both growth and
value securities), fixed income securities and money market instruments. The
investment advisor, Banc One Investment Advisors will regularly review the
Portfolio's asset allocations and vary them over time to favor investments that
it believes will provide the most favorable total return. In making asset
allocation decisions, Banc One Investment Advisors will evaluate projections of
risk, market and economic conditions, volatility, yields and expected returns.
Because the Portfolio seeks total return over the long term, Banc One Investment
Advisors will not attempt to time the market. Rather, asset allocation shifts
will be made gradually over time. For more information about the Balanced
Portfolio's investment strategies, please read "More About the Portfolios" and
"Principal Investment Strategies."
    
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE BALANCED PORTFOLIO?
 
The main risks of investing in the Balanced Portfolio and the circumstances
likely to adversely affect your investment are described below. Like all
non-money market mutual funds, the share price of the Balanced Portfolio and its
yield will change every day in response to interest rates and other market
conditions. You may lose money if you invest in the Balanced Portfolio.
 
     Market Risk. The Portfolio invests in equity securities (such as stocks)
     which are more volatile and carry more risks than some other forms of
     investment. The price of equity securities may rise or fall because of
     economic or political changes or changes in a company's financial
     condition. Equity securities are also subject to "stock market risk"
     meaning that stock prices in general may decline over short or extended
     periods of time. When the value of the Portfolio's securities goes down,
     your investment in the Fund decreases in value.
 
   
     Interest Rate Risk. In connection with the Portfolio's fixed income
     strategy, the Portfolio invests in bonds and other debt securities. These
     securities will increase or decrease in value based on changes in interest
     rates. When interest rates go up, the value of the Portfolio's investments
     generally goes down. On the other hand, if interest rates go down, the
     value of the Portfolio's investments generally goes up. Your investment
     will decline in value if the value of the Portfolio's investments decrease.
    
 
     Credit Risk. There is a risk that issuers and counterparties will not make
     payments on securities and repurchase agreements held by the Portfolio. In
     addition, the credit quality of securities held by the Portfolio may be
     lowered if an issuer's financial condition changes. Lower credit quality
     may lead to greater volatility in the price of a security and in shares of
     a Portfolio. Lower credit quality also may affect a security's liquidity
     and make it difficult for the Portfolio to sell.
 
   
     Derivative Risk. As part of its investment strategy, the Portfolio invests
     in securities that are considered to be DERIVATIVES. The value of
     derivative securities (like mortgage-backed securities or asset-backed
     securities) is dependent upon the performance of underlying assets or
     securities. If the underlying assets do not perform as expected, the value
     of the derivative security and your investment in the Portfolio declines.
     Derivatives are more volatile and are riskier in terms of both liquidity
     and value than traditional investments.
    
 
   
     Prepayment Risk. The Portfolio invests in mortgage-backed and asset-back
     securities as part of its fixed investment strategy. The issuers of these
     securities held by the Portfolio may be able to repay principal in advance,
     especially when interest rates fall. Changes in pre-payment rates can make
     the price and yield of mortgage and asset-backed securities volatile. When
     mortgage and other obligations are pre-paid, the Portfolio may have to
     reinvest in securities with a lower yield. The Portfolio may also fail to
     recover premiums paid for the securities, resulting in an unexpected
     capital loss.
    
 
   
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
    
 
                                        7
<PAGE>   12
 
   
HOW HAS THE BALANCED PORTFOLIO PERFORMED?
    
 
   
The chart and tables below help show how the Balanced Portfolio's performance
may vary. This may help you evaluate the risks of investing in the Portfolio.
The chart and Highest and Lowest Return table show changes in the Portfolio's
performance from year to year. The Average Annual Total Return table shows how
the Portfolio's average annual returns for the periods indicated compare to
those of a broad measure of market performance. Total returns assume
reinvestment of dividends and distributions. The returns in the chart and the
tables below do not reflect insurance separate account charges. If these charges
were included, the returns would be lower than those shown. PLEASE REMEMBER THAT
THE BALANCED PORTFOLIO'S PERFORMANCE IN THE PAST IS NOT NECESSARILY AN
INDICATION OF HOW THE PORTFOLIO WILL PERFORM IN THE FUTURE.
    
ONE GROUP INVESTMENT TRUST BALANCED PORTFOLIO [BAR CHART]
 
<TABLE>
<CAPTION>
'1995'                                                                           20.69
- ------                                                                           -----
<S>                                                           <C>
'1996'                                                                           11.92
'1997'                                                                           22.90
'1998'                                                                           19.09
</TABLE>
 
   
      HIGHEST AND LOWEST RETURN
    
   
      (QUARTERLY 1995-1998)
    
 
   
<TABLE>
<CAPTION>
                                                           QUARTER ENDING
                                                         ------------------
<S>                                             <C>      <C>
     Highest..................................  11.84%        June 30, 1997
     Lowest...................................  -3.63%   September 30, 1998
</TABLE>
    
 
   
      AVERAGE ANNUAL TOTAL RETURNS(1)
    
   
      (THROUGH DECEMBER 31, 1998)
    
 
   
<TABLE>
<CAPTION>
                                                                  LIFE OF FUND
                                                       1 YEAR    (SINCE 8/1/94)
                                                       ------    --------------
<S>                                                    <C>       <C>
One Group Investment Trust Balanced Portfolio........  19.09%        16.32%
S&P 500 Index(2).....................................  28.58%        27.62%
Lehman Brothers Intermediate Government/Corporate
  Bond Index(3)......................................   8.44%         7.79%
S&P 500 Index (60%) and Lipper Intermediate U.S.
  Gov't Bond Index (40%)(4)..........................  20.41%        19.60%
</TABLE>
    
 
   
(1) The table above compares the average annual return of the Portfolio, which
    holds a mix of stocks, bonds and other debt securities to an unmanaged stock
    index and an unmanaged bond index for the periods indicated.
    
 
   
(2) The S&P 500 Index is the Standard & Poor's Composite Index of 500 stocks, a
    widely recognized, unmanaged index of common stock prices.
    
 
   
(3) The Lehman Brothers Intermediate Government/Corporate Bond Index is an
    unmanaged market weighted index which encompasses U.S. Treasury and agency
    securities and investment grade corporate and international
    (dollar-denominated) bonds, with maturities between 5 and 10 years.
    
 
   
(4) The percentages shown are for a blended index consisting of 60% S&P 500
    Index and 40% Lipper Intermediate U.S. Government Bond Index.
    
 
                                        8
<PAGE>   13
 
ONE GROUP INVESTMENT TRUST LARGE CAP GROWTH PORTFOLIO
 
WHAT IS THE GOAL OF THE LARGE CAP GROWTH PORTFOLIO?
 
The Portfolio seeks long-term capital appreciation and growth of income by
investing primarily in equity securities. (The Portfolio was formerly called the
Large Company Growth Fund).
 
WHAT ARE THE LARGE CAP GROWTH PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
The Portfolio invests mainly in equity securities of large, well-established
companies. The weighted average capitalization of companies in which the
Portfolio invests normally will exceed the market median capitalization of the
Standard & Poor's 500 Composite Stock Price Index ("S&P 500 Index").(1) For more
information about the Large Cap Growth Portfolio's investment strategies, please
read "More About the Portfolios" and "Principal Investment Strategies."
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE LARGE CAP GROWTH PORTFOLIO?
 
   
The main risks of investing in the Large Cap Growth Portfolio and the
circumstances likely to adversely affect your investment are described below.
Like all non-money market mutual funds, the share price of the Large Cap Growth
Portfolio will change every day in response to market conditions. You may lose
money if you invest in the Large Cap Growth Portfolio.
    
 
     Market Risk. The Portfolio invests in equity securities (such as stocks)
     that are more volatile and carry more risks than some other forms of
     investment. The price of equity securities may rise or fall because
     economic or political changes or changes in a company's financial
     condition. Equity securities are also subject to "stock market risk"
     meaning that stock prices in general (or large cap growth stock prices in
     particular) may decline over short or extended periods of time. When the
     value of the Portfolio's securities goes down, your investment in the
     Portfolio decreases in value.
 
   
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
    
   
    
 
- ---------------
 
1"S&P 500" is a registered service mark of Standard & Poor's Corporation, which
does not sponsor and is in no way affiliated with One Group Investment Trust.
                                        9
<PAGE>   14
 
HOW HAS THE LARGE CAP GROWTH PORTFOLIO PERFORMED?
 
   
The chart and tables below help show how the Large Cap Growth Portfolio's
performance may vary. This information may help you evaluate the risks of
investing in the Portfolio. The chart and Highest and Lowest Return table show
changes in the Portfolio's performance from year to year. The Average Annual
Total Return table shows how the Portfolio's average annual returns for the
periods indicated compare to those of a broad measure of market performance.
Total returns assume reinvestment of dividends and distributions. The returns in
the chart and the tables below do not reflect insurance separate account
charges. If these charges were included, the returns would be lower than those
shown. PLEASE REMEMBER THAT THE LARGE CAP GROWTH PORTFOLIO'S PERFORMANCE IN THE
PAST IS NOT NECESSARILY AN INDICATION OF HOW THE PORTFOLIO WILL PERFORM IN THE
FUTURE.
    
 
ONE GROUP INVESTMENT TRUST LARGE CAP GROWTH PORTFOLIO [BAR GRAPH]
 
<TABLE>
<CAPTION>
'1995'                                                                           24.13
- ------                                                                           -----
<S>                                                           <C>
'1996'                                                                           16.67
'1997'                                                                           31.93
'1998'                                                                           41.27
</TABLE>
 
   
  HIGHEST AND LOWEST RETURN
    
    (QUARTERLY 1995-1998)
 
<TABLE>
<CAPTION>
                                                          QUARTER ENDING
                                                        ------------------
<S>                                           <C>       <C>
     Highest................................   23.96%    December 31, 1998
     Lowest.................................   -6.79%   September 30, 1998
</TABLE>
 
     AVERAGE ANNUAL TOTAL RETURNS
     (THROUGH DECEMBER 31, 1998)
 
   
<TABLE>
<CAPTION>
                                                                  LIFE OF FUND
                                                       1 YEAR    (SINCE 8/1/94)
                                                       ------    --------------
<S>                                                    <C>       <C>
One Group Investment Trust Large Cap Growth
  Portfolio..........................................  41.27%        25.34%
S&P 500 Index(1).....................................  28.58%        27.62%
S&P/BARRA 500 Growth Index(2)........................  42.08%        32.56%
</TABLE>
    
 
   
(1) The S&P 500 Index, an unmanaged index, is generally representative of the
    performance of large companies in the U.S. stock market.
    
 
   
(2) The S&P/BARRA 500 Growth Index, an unmanaged index, represents the highest
    price to book securities in the S&P 500 Index. The benchmark for the Large
    Cap Growth Portfolio will be changing from the S&P 500 Index to the
    S&P/BARRA 500 Growth Index in order to better represent the investment
    policies of the Portfolio for comparison purposes.
    
 
                                       10
<PAGE>   15
 
ONE GROUP INVESTMENT TRUST EQUITY INDEX PORTFOLIO
 
WHAT IS THE GOAL OF THE EQUITY INDEX PORTFOLIO?
 
The Portfolio seeks investment results that correspond to the aggregate price
and dividend performance of securities in the Standard & Poor's 500 Composite
Stock Price Index ("S&P 500 Index").(1) (The Portfolio used to be called the
Equity Index Fund).
 
WHAT ARE THE EQUITY INDEX PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
   
The Portfolio invests mainly in stocks included in the S&P 500 Index. The
Portfolio may also invest in stock index futures. Banc One Investment Advisors
attempts to track the performance of the S&P 500 Index to achieve a correlation
of 0.95 between the performance of the Portfolio and that of the S&P 500 Index,
without taking into account the Portfolio's expenses. For more information about
the Equity Index Portfolio's investment strategies, please read "More About the
Portfolios" and "Principal Investment Strategies."
    
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE EQUITY INDEX PORTFOLIO?
 
The main risks of investing in the Equity Index Portfolio and the circumstances
likely to adversely affect your investment are described below. Like all
non-money market mutual funds, the share price of the Equity Index Portfolio
will change every day in response to market conditions. You may lose money if
you invest in the Equity Index Portfolio.
 
     Index Investing. The Portfolio attempts to track the performance of the S&P
     500 Index. Therefore, securities may be purchased, retained and sold by the
     Portfolio at times when an actively managed fund would not do so. If the
     value of securities that are heavily weighted in the index changes, you can
     expect a greater risk of loss than would be the case if the Portfolio were
     not fully invested in such securities. Because of this, the Portfolio's
     share price can be volatile and there may be sudden, and sometimes
     substantial, fluctuations in the value of your investment.
 
     Market Risk. The Portfolio invests in stocks that are more volatile and
     carry more risks than some other forms of investment. The price of equity
     securities may rise or fall because of economic or political changes or
     changes in a company's financial condition. Equity securities are also
     subject to "stock market risk" meaning that stock prices in general (or S&P
     500 Index stock prices in particular) may decline over short or extended
     periods of time. When the value of the Portfolio's securities goes down,
     your investment in the Portfolio decreases in value.
 
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
 
The Portfolio began operations on May 1, 1998 and does not have a full calendar
year of investment returns at the date of this Prospectus.
 
- ---------------
 
1"S&P 500" is a registered service mark of Standard & Poor's Corporation, which
does not sponsor and is in no way affiliated with One Group Investment Trust.
                                       11
<PAGE>   16
 
ONE GROUP INVESTMENT TRUST DIVERSIFIED EQUITY PORTFOLIO
 
WHAT IS THE GOAL OF THE DIVERSIFIED EQUITY PORTFOLIO?
 
The Portfolio seeks long term capital growth and growth of income with a
secondary objective of providing a moderate level of current income. (The
Portfolio was formerly called the Value Growth Fund).
 
WHAT ARE THE DIVERSIFIED EQUITY PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
The Portfolio invests mainly in common stocks of overlooked or undervalued
companies that have the potential for earnings growth over time. The Portfolio
uses a multi-style approach, meaning that it may invest across different
capitalization levels targeting both value and growth oriented companies.
Because the Portfolio seeks return over the long term, Banc One Investment
Advisors will not attempt to time the market. For more information about the
Diversified Equity Portfolio's investment strategies, please read "More About
the Portfolios" and "Principal Investment Strategies."
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE DIVERSIFIED EQUITY PORTFOLIO?
 
The main risks of investing in the Diversified Equity Portfolio and the
circumstances likely to adversely affect your investment are described below.
Like all non-money market mutual funds, the share price of the Diversified
Equity Portfolio will change every day in response to market conditions. You may
lose money if you invest in the Diversified Equity Portfolio.
 
     Market Risk. The Portfolio invests in equity securities (such as stocks)
     that are more volatile and carry more risks than some other forms of
     investment. The price of equity securities may rise or fall because of
     economic or political changes or changes in a company's financial
     condition. Equity securities are also subject to "stock market risk"
     meaning that stock prices in general may decline over short or extended
     periods of time. When the value of the Portfolio's securities goes down,
     your investment in the Portfolio decreases in value.
 
   
     Yield. The Portfolio may invest up to 35% of its assets in U.S. Government
     Securities and other investment grade fixed income securities. While these
     investments are considered to be less risky than other types of securities,
     the Portfolio's ability to achieve higher income is not as great as that of
     funds that invest in lower-quality, higher risk securities.
    
 
     Smaller Companies. The Portfolio's investments in smaller, newer companies
     may be riskier than investments in larger, more established companies.
     Small companies may be more vulnerable to economic, market, and industry
     changes. Because economic events have a greater impact on smaller
     companies, there may be greater and more frequent changes in their stock
     price. This may cause unexpected and frequent decreases in the value of
     your investment in the Portfolio.
 
   
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
    
 
                                       12
<PAGE>   17
 
   
HOW HAS THE DIVERSIFIED EQUITY PORTFOLIO PERFORMED?
    
 
   
The chart and tables below help show how the Diversified Equity Portfolio's
performance may vary. The chart and tables reflect that the Diversified Equity
Portfolio inherited the financial history of the Pegasus Variable Growth and
Value Fund. This information may help you evaluate the risks of investing in the
Portfolio. The chart and Highest and Lowest Return table show changes in the
Portfolio's performance from year to year. The Average Annual Total Return table
shows how the Portfolio's average annual returns for the periods indicated
compare to those of a broad measure of market performance. Total returns assume
reinvestment of dividends and distributions. The returns in the chart and the
tables below do not reflect insurance separate account charges. If these charges
were included, the returns would be lower than those shown. PLEASE REMEMBER THAT
THE DIVERSIFIED EQUITY PORTFOLIO'S PERFORMANCE IN THE PAST IS NOT NECESSARILY AN
INDICATION OF HOW THE PORTFOLIO WILL PERFORM IN THE FUTURE.
    
ONE GROUP INVESTMENT TRUST DIVERSIFIED EQUITY PORTFOLIO [BAR CHART]
 
<TABLE>
<CAPTION>
'1996'                                                                           18.75
- ------                                                                           -----
<S>                                                           <C>
'1997'                                                                           26.80
'1998'                                                                           13.10
</TABLE>
 
   
  HIGHEST AND LOWEST RETURN
    
   
    (QUARTERLY 1996-1998)
    
 
<TABLE>
<CAPTION>
                                                          QUARTER ENDING
                                                        ------------------
<S>                                            <C>      <C>
     Highest.................................  15.80%    December 31, 1998
     Lowest..................................  -9.92%   September 30, 1998
</TABLE>
 
 AVERAGE ANNUAL TOTAL RETURNS
 (THROUGH DECEMBER 31, 1998)
 
   
<TABLE>
<CAPTION>
                                                                  LIFE OF FUND
                                                                     (SINCE
                                                       1 YEAR       3/30/95)
                                                       ------    --------------
<S>                                                    <C>       <C>
One Group Investment Trust Diversified Equity
  Portfolio..........................................  13.10%        20.31%
S&P 500 Index(1).....................................  28.58%        29.55%
S&P 1500 SuperComposite Index(2).....................  26.35%        28.47%
</TABLE>
    
 
   
(1) The S&P 500 Index is the Standard & Poor's Composite Index of 500 Stocks, a
    widely recognized, unmanaged index of common stock prices.
    
 
   
(2) The S&P SuperComposite 1500 Index is an unmanaged index consisting of those
    stocks making up the S&P 500, S&P MidCap 400 and S&P SmallCap 600 Indices
    representing 87% of the total U.S. equity market capitalization. The
    benchmark index for the Diversified Equity Portfolio will be changing from
    the S&P 500 Index to the S&P 1500 SuperComposite Index in order to better
    represent the investment policies for comparison purposes.
    
 
                                       13
<PAGE>   18
 
ONE GROUP INVESTMENT TRUST MID CAP GROWTH PORTFOLIO
 
WHAT IS THE GOAL OF THE MID CAP GROWTH PORTFOLIO?
 
The Portfolio seeks growth of capital and secondarily, current income by
investing primarily in equity securities. (The Portfolio was formerly called the
Growth Opportunities Fund).
 
WHAT ARE THE MID CAP GROWTH PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
   
The Portfolio invests in securities that have the potential to produce
above-average earnings growth per share over a one-to-three year period. (Mid
Cap Companies typically have market capitalizations of $500 million to $5
billion). Typically, the Portfolio acquires shares of established companies with
a history of above-average growth, as well as those companies expected to enter
periods of above-average growth. Not all the securities purchased by the
Portfolio will pay dividends. The Portfolio also invests in smaller companies in
emerging growth industries. For more information about the Mid Cap Growth
Portfolio's investment strategies, please read "More About the Portfolios" and
"Principal Investment Strategies."
    
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE MID CAP GROWTH PORTFOLIO?
 
The main risks of investing in the Mid Cap Growth Portfolio and the
circumstances likely to adversely affect your investment are described below.
Like all non-money market mutual funds, the share price of the Mid Cap Growth
Portfolio will change every day in response to market conditions. You may lose
money if you invest in the Mid Cap Growth Portfolio.
 
     Market Risk. The Portfolio invests in equity securities (such as stocks)
     that are more volatile and carry more risks than some other forms of
     investment. The price of equity securities may rise or fall because of
     economic or political changes or changes in a company's financial
     condition. Equity securities are also subject to "stock market risk"
     meaning that stock prices in general (or mid cap growth stock prices in
     particular) may decline over short or extended periods of time. When the
     value of the Portfolio's securities goes down, your investment in the
     Portfolio decreases in value.
 
     Smaller Companies. Investments in smaller, newer companies may be riskier
     than investments in larger, more established companies. Small companies may
     be more vulnerable to economic, market, and industry changes. Because
     economic events have a greater impact on smaller companies, there may be
     greater and more frequent changes in their stock price. This may cause
     unexpected and frequent decreases in the value of your investment in the
     Portfolio.
 
   
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
    
 
                                       14
<PAGE>   19
 
   
HOW HAS THE MID CAP GROWTH PORTFOLIO PERFORMED?
    
 
   
The chart and tables below help show how the Mid Cap Growth Portfolio's
performance may vary. This may help you evaluate the risks of investing in the
Portfolio. The chart and Highest and Lowest Return table show changes in the
Portfolio's performance from year to year. The Average Annual Total Return table
shows how the Portfolio's average annual returns for the periods indicated
compare to those of a broad measure of market performance. Total returns assume
reinvestment of dividends and distributions. The returns in the chart and the
tables below do not reflect insurance separate account charges. If these charges
were included, the returns would be lower than those shown. PLEASE REMEMBER THAT
THE MID CAP GROWTH PORTFOLIO'S PERFORMANCE IN THE PAST IS NOT NECESSARILY AN
INDICATION OF HOW THE PORTFOLIO WILL PERFORM IN THE FUTURE.
    
ONE GROUP INVESTMENT TRUST MID CAP GROWTH PORTFOLIO [BAR CHART]
 
<TABLE>
<CAPTION>
'1995'                                                                           24.06
- ------                                                                           -----
<S>                                                           <C>
'1996'                                                                           15.67
'1997'                                                                           29.81
'1998'                                                                           38.82
</TABLE>
 
   
  HIGHEST AND LOWEST RETURN
    
    (QUARTERLY 1995-1998)
 
<TABLE>
<CAPTION>
                                                          QUARTER ENDING
                                                        ------------------
<S>                                           <C>       <C>
     Highest................................   40.10%    December 31, 1998
     Lowest.................................  -14.67%   September 31, 1998
</TABLE>
 
       AVERAGE ANNUAL TOTAL
           RETURNS
       (THROUGH DECEMBER 31,
            1998)
 
   
<TABLE>
<CAPTION>
                                                                  LIFE OF FUND
                                                       1 YEAR    (SINCE 8/1/94)
                                                       ------    --------------
<S>                                                    <C>       <C>
One Group Investment Trust Mid Cap Growth
  Portfolio..........................................  38.82%        23.13%
Russell 2000 Index (1)...............................  -2.55%        14.84%
S&P/BARRA Mid Cap 400 Growth Index (2)...............  34.86%        25.53%
</TABLE>
    
 
   
(1) The Russell 2000, an unmanaged index, is generally representative of small
    to mid-sized companies.
    
 
   
(2) The S&P/BARRA Mid Cap 400 Growth Index, an unmanaged index, represents the
    highest price to book securities in the S&P Mid Cap 400 Index. The benchmark
    for the Mid Cap Growth Portfolio will be changing from the Russell 2000 to
    the S&P/BARRA Mid Cap 400 Growth Index in order to better represent the
    investment policies of the Portfolio for comparison purposes.
    
 
                                       15
<PAGE>   20
 
    ONE GROUP INVESTMENT TRUST DIVERSIFIED MID CAP PORTFOLIO
 
    WHAT IS THE GOAL OF THE DIVERSIFIED MID CAP PORTFOLIO?
 
The Portfolio seeks long term capital growth by investing primarily in equity
securities of companies with intermediate capitalizations. (The Portfolio was
formerly called the Mid Cap Opportunities Fund).
 
WHAT ARE THE DIVERSIFIED MID CAP PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
The Portfolio invests mainly in equity securities of companies with
capitalizations of $500 million to $5 billion. The Portfolio intends to invest
in companies of this size with strong growth potential, stable market share, and
an ability to quickly respond to new business opportunities. The Portfolio uses
a multi-style approach, meaning that it may invest in mid cap and other
companies across different capitalization levels targeting both value and growth
oriented companies. Because the Portfolio seeks return over the long term, Banc
One Investment Advisors will not attempt to time the market. For more
information about the Diversified Mid Cap Portfolio's investment strategies,
please read "More About the Portfolios" and "Principal Investment Strategies."
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE DIVERSIFIED MID CAP PORTFOLIO?
 
The main risks of investing in the Diversified Mid Cap Portfolio and the
circumstances likely to adversely affect your investment are described below.
Like all non-money market mutual funds, the share price of the Diversified Mid
Cap Portfolio will change every day in response to market conditions. You may
lose money if you invest in the Diversified Mid Cap Portfolio.
 
     Market Risk. The Portfolio invests in equity securities (such as stocks)
     that are more volatile and carry more risks than some other forms of
     investment. The price of equity securities may rise or fall because of
     economic or political changes or changes in a company's financial
     condition. Equity securities also are subject to "stock market risk"
     meaning that stock prices in general (or mid cap stock prices in
     particular) may decline over short or extended periods of time. When the
     value of the Portfolio's securities goes down, your investment in the
     Portfolio decreases in value.
 
   
     Smaller Companies. Investments in smaller, newer companies may be riskier
     than investments in larger, more established companies. Small companies may
     be more vulnerable to economic, market, and industry changes. Because
     economic events have a greater impact on smaller companies, there may be
     greater and more frequent changes in their stock price. This may cause
     unexpected and frequent decreases in the value of your investment in the
     Portfolio.
    
 
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
 
                                       16
<PAGE>   21
 
HOW HAS THE DIVERSIFIED MID CAP PORTFOLIO PERFORMED?
 
   
The chart and tables below help show how the Diversified Mid Cap Portfolio's
performance may vary. The chart and tables reflect that the Diversified Mid Cap
Portfolio inherited the financial history of the Pegasus Variable Mid-Cap
Opportunity Fund. This information may help you evaluate the risks of investing
in the Portfolio. The chart and Highest and Lowest Return table show changes in
the Portfolio's performance from year to year. The Average Annual Total Return
table shows how the Portfolio's average annual returns for the periods indicated
compare to those of a broad measure of market performance. Total returns assume
reinvestment of dividends and distributions. The returns in the chart and the
tables below do not reflect insurance separate account charges. If these charges
were included, the returns would be lower than those shown. PLEASE REMEMBER THAT
THE DIVERSIFIED MID CAP PORTFOLIO'S PERFORMANCE IN THE PAST IS NOT NECESSARILY
AN INDICATION OF HOW THE PORTFOLIO WILL PERFORM IN THE FUTURE.
    
ONE GROUP INVESTMENT TRUST DIVERSIFIED MID CAP PORTFOLIO [BAR CHART]
 
<TABLE>
<CAPTION>
'1996'                                                                           24.53
- ------                                                                           -----
<S>                                                           <C>
'1997'                                                                           26.65
'1998'                                                                            4.91
</TABLE>
 
   
  HIGHEST AND LOWEST RETURN
    
   
    (QUARTERLY 1996-1998)
    
 
   
<TABLE>
<CAPTION>
                                                          QUARTER ENDING
                                                        ------------------
<S>                                           <C>       <C>
Highest.....................................   22.38%    December 31, 1998
Lowest......................................  -20.05%   September 30, 1998
</TABLE>
    
 
   
     AVERAGE ANNUAL TOTAL RETURNS
      (THROUGH DECEMBER 31,
            1998)
    
 
   
<TABLE>
<CAPTION>
                                                                 LIFE OF FUND
                                                      1 YEAR    (SINCE 3/30/95)
                                                      ------    ---------------
<S>                                                   <C>       <C>
One Group Investment Trust Diversified Mid Cap
  Portfolio.........................................   4.91%         17.47%
Russell 2500 Index(1)...............................   0.38%         17.34%
S&P 400 Mid Cap Index(2)............................  19.09%         24.45%
</TABLE>
    
 
   
(1 )The Russell 2500 Index is an unmanaged index generally representative of the
    small-to-medium-small stock market.
    
 
   
(2 )The S&P 400 Mid Cap Index, an unmanaged index, represents the mid-size
    company segment of the U.S. market. The benchmark index for the Diversified
    Mid Cap Portfolio will be changing from the Russell 2500 Index to the S&P
    400 Mid Cap Index in order to better represent the investment policies of
    the Portfolio for comparison purposes.
    
 
                                       17
<PAGE>   22
 
ONE GROUP INVESTMENT TRUST MID CAP VALUE PORTFOLIO
 
WHAT IS THE GOAL OF THE MID CAP VALUE PORTFOLIO?
 
The Portfolio seeks capital appreciation with the secondary goal of achieving
current income by investing primarily in equity securities. (The Portfolio was
formerly called the Mid Cap Value Fund).
 
WHAT ARE THE MID CAP VALUE PORTFOLIO'S MAIN INVESTMENT STRATEGIES?
 
   
The Portfolio invests mainly in equity securities of companies with below-market
average price-to-earnings and price-to-book value ratios and with market
capitalizations of $500 million to $5 billion. In choosing investments, the
Portfolio considers the issuer's soundness and earnings prospects. If Banc One
Investment Advisors thinks that a company's fundamentals are declining or that a
company's ability to pay dividends has been impaired, it may eliminate the
Portfolio's holding of the company's stock. For more information about the Mid
Cap Value Portfolio's investment strategies, please read "More About the
Portfolios" and "Principal Investment Strategies."
    
 
WHAT ARE THE MAIN RISKS OF INVESTING IN THE MID CAP VALUE PORTFOLIO?
 
The main risks of investing in the Mid Cap Value Portfolio and the circumstances
likely to adversely affect your investment are described below. Like all
non-money market mutual funds, the share price of the Mid Cap Value Portfolio
and its yield will change every day in response to interest rates and other
market conditions. You may lose money if you invest in the Mid Cap Value
Portfolio.
 
     Market Risk. The Portfolio invests in equity securities (such as stocks)
     which are more volatile and carry more risks than some other forms of
     investment. The price of equity securities may rise or fall because
     economic or political changes or changes in a company's financial
     condition. Equity securities are also subject to "stock market risk"
     meaning that stock prices in general (or mid cap value stock prices in
     particular) may decline over short or extended periods of time. When the
     value of the Portfolio's securities goes down, your investment in the Fund
     decreases in value.
 
   
     Smaller Companies. The Portfolio's investments in smaller, newer companies
     may be riskier than investments in larger, more established companies.
     Small companies may be more vulnerable to economic, market, and industry
     changes. Because economic events have a greater impact on smaller
     companies, there may be greater and more frequent changes in their stock
     price. This may cause unexpected and frequent decreases in the value of
     your investment in the Portfolio.
    
 
     Not FDIC insured. An investment in the Portfolio is not a deposit of BANK
     ONE CORPORATION or any of its affiliates and is not insured or guaranteed
     by the Federal Deposit Insurance Corporation or any other governmental
     agency.
 
                                       18
<PAGE>   23
 
   
HOW HAS THE MID CAP VALUE PORTFOLIO PERFORMED?
    
 
   
The chart and tables below help show how the Mid Cap Value Portfolio's
performance may vary. The chart and tables reflect that the Mid Cap Value
Portfolio inherited the financial history of the Pegasus Variable Intrinsic
Value Fund. This information may help you evaluate the risks of investing in the
Portfolio. The chart and Highest and Lowest Return table show changes in the
Portfolio's performance for calendar year 1998, the Portfolio's first full
calendar year of operations. The Average Annual Total Return table shows how the
Portfolio's average annual returns for the periods indicated compare to those of
a broad measure of market performance. Total returns assume reinvestment of
dividends and distributions. The returns in the chart and the tables below do
not reflect insurance separate account charges. If these charges were included,
the returns would be lower than those shown. PLEASE REMEMBER THAT THE MID CAP
VALUE PORTFOLIO'S PERFORMANCE IN THE PAST IS NOT NECESSARILY AN INDICATION OF
HOW THE PORTFOLIO WILL PERFORM IN THE FUTURE.
    
ONE GROUP INVESTMENT TRUST MID CAP VALUE PORTFOLIO [BAR CHART]
 
<TABLE>
<CAPTION>
'1998'                                                                           -3.31
- ------                                                                           -----
<S>                                                           <C>
</TABLE>
 
   
  HIGHEST AND LOWEST RETURN
    
   
       (QUARTERLY 1998)
    
 
   
<TABLE>
<CAPTION>
                                                          QUARTER ENDING
                                                        ------------------
<S>                                           <C>       <C>
Highest.....................................    8.35%       March 31, 1998
Lowest......................................  -14.07%   September 30, 1998
</TABLE>
    
 
      AVERAGE ANNUAL TOTAL RETURNS
   
      (THROUGH DECEMBER 31, 1998)
    
 
   
<TABLE>
<CAPTION>
                                                                 LIFE OF FUND
                                                      1 YEAR    (SINCE 5/1/97)
                                                      ------    --------------
<S>                                                   <C>       <C>
One Group Investment Trust Mid Cap Value
  Portfolio.........................................  -3.31%         7.65%
S&P 500 Index(1)....................................  28.58%        31.27%
S&P/BARRA Mid Cap 400 Value Index(2)................   4.67%        21.04%
</TABLE>
    
 
   
(1) The S&P 500 Index is the Standard & Poor's Composite Index of 500 Stocks, a
    widely recognized, unmanaged index of common stock prices.
    
 
   
(2) The S&P/BARRA Mid Cap 400 Value Index, an unmanaged index, represents the
    lowest price to book securities in the S&P Mid Cap 400 Index. The benchmark
    index for the Mid Cap Value Portfolio will be changing from the S&P 500
    Index to S&P/BARRA Mid Cap 400 Value Index in order to better represent the
    investment policies of the Portfolio for comparison purposes.
    
 
                                       19
<PAGE>   24
 
MORE ABOUT THE PORTFOLIOS
 
TYPES OF PORTFOLIOS. The following pages describe investment strategies that are
used in more than one Portfolio. Where indicated, the strategies only apply to
the Bond Portfolios or the Equity Portfolios.
 
   
          The BOND PORTFOLIOS include:
    
 
          - One Group Investment Trust Bond Portfolio and
          - One Group Investment Trust Government Bond Portfolio.
 
   
          The EQUITY PORTFOLIOS include:
    
 
          - One Group Investment Trust Balanced Portfolio,
          - One Group Investment Trust Large Cap Growth Portfolio,
          - One Group Investment Trust Equity Index Portfolio,
          - One Group Investment Trust Diversified Equity Portfolio,
          - One Group Investment Trust Mid Cap Growth Portfolio,
          - One Group Investment Trust Diversified Mid Cap Portfolio, and
          - One Group Investment Trust Mid Cap Value Portfolio.
 
ONE GROUP INVESTMENT TRUST
 
   
ALTHOUGH ONE GROUP INVESTMENT TRUST PORTFOLIOS HAVE THE SAME OR SIMILAR
INVESTMENT OBJECTIVES AND INVESTMENT STRATEGIES AS SIMILARLY NAMED FUNDS OF ONE
GROUP(R) MUTUAL FUNDS, ONE GROUP INVESTMENT TRUST PORTFOLIOS:
    
 
   
          - ARE NOT THE SAME FUNDS AS ONE GROUP MUTUAL FUNDS;
    
   
          - ARE SMALLER THAN ONE GROUP MUTUAL FUNDS; AND
    
   
          - HAVE DIFFERENT PERFORMANCE, FEES AND EXPENSES THAN ONE GROUP MUTUAL
            FUNDS.
    
 
   
PORTFOLIO QUALITY.  Various rating organizations (like Standard & Poor's
Corporation and Moody's Investor Service) assign ratings to securities.
Generally, ratings are divided into two main categories: "Investment Grade
Securities" and "Non-Investment Grade Securities." Although there is always a
risk of default, rating agencies believe that issuers of Investment Grade
Securities have a high to medium probability of making payments on such
securities. Non-Investment Grade Securities include securities that, in the
opinion of the rating agencies, are more likely to default than Investment Grade
Securities. The Portfolios only purchase securities that meet the rating
criteria described below. Banc One Investment Advisors will look at a security's
rating at the time of investment. If the securities are unrated, Banc One
Investment Advisors must determine that they are of comparable quality to rated
securities.
    
 
  RATINGS OF THE BOND PORTFOLIOS' SECURITIES
 
     Short-term corporate obligations such as commercial paper notes and
     variable demand obligations must be rated in one of the two highest
     investment grade categories at the time of investment.
 
     One Group Investment Trust Government Bond Portfolio only may invest in
     debt securities rated in any of the three highest investment grade rating
     categories.
 
   
     One Group Investment Trust Bond Portfolio may purchase corporate and
     municipal bonds that are rated in ANY category. Bonds in the lowest rating
     categories are speculative and may be classified as "junk bonds." The Bond
     Portfolio will invest no more than 5% of its net assets in securities rated
     below investment grade.
    
 
                                       20
<PAGE>   25
 
  RATINGS OF THE EQUITY PORTFOLIOS' SECURITIES
 
     Municipal securities and short-term corporate obligations, such as
     commercial paper, notes and variable rate demand obligations, must be rated
     in one of the two highest investment grade categories at the time of
     investment.
 
     Corporate bonds generally will be rated in one of the three highest
     investment grade categories. Banc One Investment Advisors reserves the
     right to invest in corporate bonds that present attractive opportunities
     and are rated in the lowest investment grade category. These corporate
     bonds may be riskier than higher rated bonds. The Diversified Mid Cap
     Portfolio may invest in lower rated convertible securities. These
     securities are speculative and may be classified as "junk bonds."
 
   
For more information about ratings, please see "Description of Ratings" in the
Statement of Additional Information.
    
 
   
TEMPORARY DEFENSIVE POSITIONS.  To respond to unusual market conditions, the
portfolios may invest all or most of their assets in CASH EQUIVALENTS (see
below) for temporary defensive purposes. These investments may result in a lower
yield than lower-quality or longer term investments and may prevent the
Portfolios from meeting their investment objectives. When a Portfolio is
investing for temporary investment purposes, it may make investments that are
inconsistent with its investment objective and strategies.
    
 
     Bond Portfolios. For temporary defensive purposes as determined by Banc One
     Investment Advisors, the Bond Portfolios may invest up to 100% of their
     assets in cash equivalents, and may hold a portion of their assets in cash
     for liquidity purposes.
 
     Equity Portfolios. For temporary defensive purposes as determined by Banc
     One Investment Advisors, the Equity Portfolios (except the Equity Index
     Portfolio and Diversified Mid Cap Portfolio), may invest 100% of its total
     assets in cash and cash equivalents. The Diversified Mid Cap Portfolio may
     invest up to 20% and the Equity Index Portfolio may invest 10% of their
     total assets in cash and cash equivalents.
 
                           WHAT IS A CASH EQUIVALENT?
 
Cash Equivalents are highly liquid, high quality instruments with maturities of
three months or less on the date they are purchased. They include securities
issued by the U.S. Government, its agencies and instrumentalities, repurchase
agreements (other than equity repurchase agreements), certificates of deposit,
bankers' acceptances, commercial paper (rated in one of the two highest rating
categories), variable rate master demand notes, and bank money market deposit
accounts.
 
PORTFOLIO TURNOVER. It is estimated that portfolio turnover rate for each of the
Bond Portfolios will not exceed 50% and portfolio turnover for each of the
Equity Portfolios will not exceed 100%. However, the portfolio managers actively
manage the Portfolios and may trade securities frequently, resulting, from time
to time, in an annual portfolio turnover rate of over 100%. Active trading may
increase the amount of fees and transaction costs.
 
For more information about each of the Portfolios, please read "Investment
Practices."
 
                                       21
<PAGE>   26
 
SHAREHOLDER INFORMATION
 
PRICING OF PORTFOLIO SHARES
 
HOW ARE PORTFOLIO SHARES PRICED? The net asset value or NAV per share for each
Fund is determined as of the close of regular trading on the New York Stock
Exchange (usually 4 P.M. Eastern Time), on each day the Portfolios are open for
business. The NAV per share is calculated by adding the value of all securities
and other assets of a Portfolio, deducting its liabilities, and dividing by the
number of shares of the Portfolio that are outstanding.
 
WHEN ARE THE PORTFOLIOS' BUSINESS DAYS? The Portfolios are open for business on
days that the New York Stock Exchange is open for business and days other than
weekends and the following holidays: New Years Day, Martin Luther King, Jr. Day,
President's Day, Good Friday, Memorial Day, Independence Day, Labor Day,
Thanksgiving, and Christmas.
 
PURCHASE OF PORTFOLIO SHARES
 
   
WHO CAN PURCHASE SHARES OF THE PORTFOLIOS? Shares of the Portfolios are sold at
net asset value to SEPARATE ACCOUNTS of insurance companies to fund variable
annuity and variable life contracts. Shares are purchased at net asset value
next determined after the purchase order, in proper form, is received by the One
Group Investment Trust's transfer agent, Nationwide Investors Services, Inc. You
and other purchasers of variable life or variable annuity contracts will not own
shares of the Fund directly. Rather, all shares will be held by the separate
accounts for your benefit and the benefit of other purchasers of variable
annuity and variable life contracts. All investments in the Portfolios are
credited to the shareholder's account in the form of full or fractional shares
of the designated Portfolios. The Portfolios do not issue share certificates.
The interests of different separate accounts are not always the same and
material, irreconcilable conflicts may arise. The Board of Trustees will monitor
events for such conflicts and, should they arise, will determine what action, if
any, should be taken.
    
 
   
ARE THERE LIMITS ON PORTFOLIO PURCHASES? Yes. Initial and subsequent purchase
payments allocated to a specific Portfolio are subject to any limits set by your
variable annuity or variable life contract. For information concerning the
purchase and redemption of shares through your variable annuity or variable life
contract, refer to the literature that you received when you purchased your
variable annuity or variable life contract.
    
 
   
REDEMPTION OF PORTFOLIO SHARES
    
 
   
Separate accounts may redeem shares to make benefit or surrender payments to you
and other purchasers of variable annuity or variable life contracts. Redemptions
are processed on any day on which the Portfolios are open for business. Shares
are redeemed at the net asset value next determined after the redemption order,
in proper form, is received by the One Group Investment Trust's transfer agent,
Nationwide Investors Services, Inc.
    
 
VOTING AND MEETINGS
 
HOW ARE SHARES OF THE PORTFOLIO VOTED? The insurance company that issued your
variable annuity or variable life contract will solicit voting instructions from
you and other purchasers of variable annuity or variable life contracts with
respect to any matters that are presented to a vote of shareholders. Each
Portfolio votes separately on matters relating solely to that Portfolio or which
affect that Portfolio differently. However, all shareholders will have equal
voting rights on matters that affect all shareholders equally. The holders of
each share shall be entitled to one vote for each share held.
 
   
WHEN ARE SHAREHOLDER MEETINGS HELD? One Group Investment Trust does not hold
Annual Meetings of shareholders but may hold Special Meetings. Special meetings
are held, for example, to elect or remove Trustees, change a Portfolio's
fundamental investment objectives, or approve an investment advisory contract.
    
 
  DIVIDENDS
 
   
          - All dividends are distributed to the separate accounts on a
            quarterly basis and will be automatically reinvested in portfolio
            shares.
    
 
                                       22
<PAGE>   27
 
          - Dividends are not taxable as current income to you or other
            purchasers of variable annuity or variable life insurance contracts.
 
  QUESTIONS
 
   
          - Any questions regarding the Portfolios should be directed to One
            Group Investment Trust, Three Nationwide Plaza, Columbus, Ohio 43215
            Telephone: 1-800-860-3946. All questions regarding variable
            annuities or life insurance contract should be directed to the
            address indicated in the prospectuses that you received when you
            purchased your variable annuity or variable life product.
    
 
TAX INFORMATION
 
   
Generally, owners of variable annuity and variable life contracts are not taxed
currently on income or gains realized with respect to such contracts. However,
some distributions from such contracts may be taxable at ordinary income tax
rates. In addition, distributions made to an owner who is younger than 59 1/2
may be subject to a 10% penalty tax. Investors should ask their own tax advisors
for more information on their own tax situation, including possible state or
local taxes.
    
 
   
In order for investors to receive the favorable tax treatment available to
holders of variable annuity and variable life contracts, the separate accounts
underlying such contracts, as well as the Portfolios in which such accounts
invest, must meet certain diversification requirements. Each Portfolio intends
to comply with these requirements. If a Portfolio does not meet such
requirements, income allocable to the contracts would be taxable currently to
the holders of such contracts.
    
 
   
Please refer to the Statement of Additional Information for more information
regarding the tax treatment of the Portfolios. Please refer to the prospectus of
the separate accounts that hold interest in the Portfolios for a discussion of
the tax consequences of variable annuity and variable life contracts.
    
 
QUALIFIED PLANS. In the future, shares of the portfolios may also be sold to
qualified pension and retirement plans for the benefit of plan participants. For
information about the purchase and redemption of shares by qualified pension and
retirement plans as well as the tax consequences impacting such plans, refer to
the literature received from your plan administrator.
 
                                       23
<PAGE>   28
 
MANAGEMENT OF THE PORTFOLIOS
 
THE ADVISOR
 
   
Banc One Investment Advisors (1111 Polaris Parkway, P.O. Box 71021, Columbus,
Ohio 43271-0211) makes the day-to-day investment decisions for the Portfolios
and continuously reviews, supervises and administers each Portfolio's investment
program. Banc One Investment Advisors performs its responsibilities subject to
the supervision of, and policies established by, the Trustees of One Group
Investment Trust. Banc One Investment Advisors has served as investment advisor
to the Trust since its inception. In addition, Banc One Investment Advisors
serves as investment advisor to other mutual funds and individual corporate,
charitable, and retirement accounts. As of December 31, 1998, Banc One
Investment Advisors, an indirect wholly-owned subsidiary of BANK ONE
CORPORATION, managed over $59 billion in assets.
    
 
Banc One Investment Advisors is entitled to a fee, which is calculated daily and
paid monthly, of the following annual percentages of the average daily net
assets of each Portfolio:
 
   
<TABLE>
<CAPTION>
                                                   ADVISORY
                  PORTFOLIO                          FEE
                  ---------                       ----------
<S>                                               <C>
Bond Portfolio                                       0.60%
Government Bond Portfolio                            0.45%
Balanced Portfolio                                   0.70%
Large Cap Growth Portfolio                           0.65%
Equity Index Portfolio                               0.30%
Diversified Equity Portfolio                         0.74%
Mid Cap Growth Portfolio                             0.65%
Diversified Mid Cap Portfolio                        0.74%
Mid Cap Value Portfolio                              0.74%
</TABLE>
    
 
   
Waivers. Banc One Investment Advisors has voluntarily agreed to waive all or
part of its fees in order to limit the Portfolios' total operating expenses on
an annual basis to not more than the following percentages of the average daily
net assets:
    
 
   
<TABLE>
<CAPTION>
                                                  PERCENTAGE OF
                                                     AVERAGE
                                                    DAILY NET
                  PORTFOLIO                          ASSETS
                  ---------                       -------------
<S>                                               <C>
Bond Portfolio                                        0.75%
Government Bond Portfolio                             0.75%
Balanced Portfolio                                    1.00%
Large Cap Growth Portfolio                            1.00%
Equity Index Portfolio                                0.55%
Diversified Equity Portfolio                          0.95%
Mid Cap Growth Portfolio                              1.10%
Diversified Mid Cap Portfolio                         0.95%
Mid Cap Value Portfolio                               0.95%
</TABLE>
    
 
These fee waivers are voluntary and may be terminated at any time.
 
For the fiscal year ended December 31, 1998, the Portfolios paid advisory fees
to Banc One Investment Advisors at the following rates:
 
   
<TABLE>
<CAPTION>
                                                   ADVISORY
                  PORTFOLIO                          FEES
                  ---------                        --------
<S>                                               <C>
Government Bond Portfolio                            0.42%
Balanced Portfolio                                   0.70%
Large Cap Growth Portfolio                           0.65%
Equity Index Portfolio                               0.00%
Mid Cap Growth Portfolio                             0.65%
</TABLE>
    
 
                                       24
<PAGE>   29
 
   
For the fiscal year ended December 31, 1998, the predecessor funds of the
following Portfolios paid investment advisory fees to First Chicago NBD
Investment Management Company, an indirect, wholly owned subsidiary of BANK ONE
CORPORATION and an affiliate of Banc One Investment Advisors:
    
 
   
<TABLE>
<CAPTION>
                                                   ADVISORY
                  PORTFOLIO                          FEES
                  ---------                        --------
<S>                                               <C>
Bond Portfolio                                       0.37%
Diversified Equity Portfolio                         0.57%
Diversified Mid Cap Portfolio                        0.06%
Mid Cap Value Portfolio                              0.38%
</TABLE>
    
 
THE PORTFOLIO MANAGERS
 
The Bond Portfolios are managed by teams of portfolio managers, research
analysts and fixed income traders. The team works together to establish general
duration and sector strategies for the Portfolio. Each team member makes
recommendations about securities in the Portfolio. The research analysts and
trading personnel provide individual security and sector recommendations, while
the portfolio managers select and allocate individual securities in a manner
designed to meet the investment objectives of the Portfolio.
 
   
The Equity Portfolios are managed by teams of portfolio managers, research
analysts, and other investment management professionals. For all Equity
Portfolios, except the Equity Index Portfolio which is not actively managed,
each team member makes recommendations about the securities in a Portfolio. The
research analysts provide in-depth industry analysis and recommendations, while
the portfolio managers determine strategy, industry weightings, portfolio
holdings, and cash positions.
    
 
YEAR 2000
 
Preparing for the Year 2000 is a high priority for the Portfolios. Both One
Group Investment Trust's Administrator, Nationwide Advisory Services, Inc. and
Banc One Investment Advisors have formed dedicated teams to help them
successfully achieve Year 2000 readiness. In addition, these teams are
responsible for assessing the readiness of all other service providers to the
Portfolios. Year 2000 readiness efforts are directed toward both information
technology and non-information technology systems. Non-information technology
systems include elevators, photocopy machines, and facsimile machines, and
should have no significant impact on the delivery of services to Portfolios.
 
Banc One Investment Advisors has identified information technology systems and
interfaces that provide service and support to the Portfolios. Many, if not all,
of the systems are owned or operated by third party servicers (for example, One
Group Investment Trust's Custodian). Consequently, readiness efforts must be
made by those servicers. Banc One Investment Advisors and the Administrator
have, and will continue to, monitor the readiness progress of the service
providers. This process involves documentation, on-site visits, and review of
readiness plans and test results. Neither the Portfolios nor their shareholders
will bear any of the direct expenses involved in Year 2000 readiness efforts.
 
   
Neither the Administrator nor Banc One Investment Advisors currently anticipate
that the move to Year 2000 will have a material impact on their ability to
continue to provide the Portfolios with service at current levels. Likewise, One
Group Investment Trust currently anticipates that the move to Year 2000 will not
have a material impact on its operations. While there can be no guarantee that
Year 2000 readiness will not materially impact the Portfolios' operations, One
Group Investment Trust is unaware of any material information relating to Year
2000 readiness efforts by Banc One Investment Advisors, the Administrator, and
the Portfolios relevant to an investor in the Portfolios that has not been
disclosed.
    
 
                                       25
<PAGE>   30
 
PRINCIPAL INVESTMENT STRATEGIES
 
The principal investment strategies of the Portfolios are described below. In
the opinion of Banc One Investment Advisors, these strategies are important in
trying to achieve each Portfolio's investment objective. There can be no
assurance that the Portfolios will achieve their investment objectives. Please
note that each Portfolio may also use strategies that are not described below,
but which are described in the Statement of Additional Information. For a list
of all of the types of securities in which the Portfolios may invest, please
read "Investment Practices" in Appendix A.
 
THE BOND PORTFOLIOS
 
   
Banc One Investment Advisors selects securities for the Bond Portfolios by
analyzing both individual securities and different industry sectors. Rather than
attempting to time the market, Banc One Investment Advisors looks for sectors
and securities that it believes will perform consistently well over time as
measured by total return. The Bond Portfolios attempt to enhance total return by
selecting market sectors that offer risk/reward advantages based on structural
risks and credit trends. Individual securities that are purchased by the
Portfolios are subject to a disciplined risk/reward analysis both at the time of
purchase and on an ongoing basis. This analysis includes an evaluation of
interest rate risk, credit risk, and risks associated with the structure of the
investment (e.g., asset-backed securities). (The risks associated with the types
of investments the Portfolio purchases are described in more detail in Appendix
A). Additional investment strategies used by each of the Bond Portfolios are
described below:
    
 
     ONE GROUP INVESTMENT TRUST BOND PORTFOLIO. The Portfolio invests primarily
     in investment grade debt securities as well as convertible securities,
     preferred stock, and loan participations. The Portfolio's weighted average
     maturity will normally range between four and twelve years, although the
     Portfolio may shorten its weighted average for temporary defensive
     purposes.
 
   
          - At least 65% of the Portfolio's total assets will be invested in all
            types of debt securities with intermediate to long maturities.
    
 
          - At least 65% of the Portfolio's total assets consist of "bonds."
 
     ONE GROUP INVESTMENT TRUST GOVERNMENT BOND PORTFOLIO. The Portfolio limits
     its investments to securities and related to securities issued by the U.S.
     Government and its agencies and instrumentalities. At least 65% of the
     Portfolio's total assets will be invested in:
 
          - all types of debt securities with principal and interest guaranteed
            by the U.S. Government and its agencies and instrumentalities. (Some
            of these securities may be subject to repurchase agreements.)
 
          - other securities representing an interest in or secured by mortgages
            that are issued or guaranteed by certain U.S. government agencies or
            instrumentalities.
 
THE EQUITY PORTFOLIOS
 
The investment strategies utilized by the Equity Portfolios are described in the
Risk/Return Summaries and below.
 
     ONE GROUP INVESTMENT TRUST BALANCED PORTFOLIO. The Portfolios invests in a
     combination of stocks, fixed income securities and money market
     instruments. Normally, the Portfolio will invest:
 
          - between 40% and 75% of total assets in all types of equity
            securities (including stock of both large and small capitalization
            companies and growth and value securities). Up to 20% of the
            equities may be foreign securities, including American Depository
            Receipts.
 
          - between 25% and 60% of total assets in mid to long term fixed income
            securities, including bonds, notes, and other debt securities. The
            balance will be invested in cash equivalents. For more information
            on how Banc One Investment Advisors selects fixed income securities,
            please read "The Bond Portfolios" above.
 
                                       26
<PAGE>   31
 
     ONE GROUP INVESTMENT TRUST MID CAP GROWTH PORTFOLIO. The Portfolio invests
     in securities of companies that have the potential to produce above-average
     earnings growth per share over a one-to-three year period.
 
   
          - At least 80% of the Portfolio's total assets will be invested in
            equity securities, including common stocks and debt securities and
            preferred stocks that are convertible to common stock.
    
 
          - A portion of the Fund's assets will be held in cash equivalents.
 
     ONE GROUP INVESTMENT TRUST LARGE CAP GROWTH PORTFOLIO. The Portfolio
     invests mainly in equity securities of large, well-established companies.
     The weighted average capitalization of companies in which the Portfolio
     invests normally will exceed the market median capitalization of the
     Standard & Poor's 500 Composite Stock Price Index ("S&P 500 Index").(1)
 
          - At least 65% of the Portfolio's total assets will be invested in the
            equity securities of large, well-established companies, including
            common stock, warrants and rights to buy common stock.
 
     ONE GROUP INVESTMENT TRUST EQUITY INDEX PORTFOLIO. The Portfolio invests in
     stocks included in the S&P 500 Index. (The Portfolio also invests in stock
     index futures.) Banc One Investment Advisors seeks to achieve a correlation
     between the performance of the Fund and that of the S&P 500 Index. The
     Portfolio may hold up to 10% of its net assets in cash or cash equivalents.
 
                         HOW DOES INDEX INVESTING WORK?
 
          - The percentage of stock that the Portfolio holds will be
            approximately the same percentage that the stock represents in the
            S&P 500 Index.
 
   
          - Banc One Investment Advisors generally picks stock in the order of
            their weightings in the S&P 500 Index, starting with the heaviest
            weighted stock.
    
 
          - The Portfolio attempts to achieve a correlation between the
            performance of its portfolio and that of the S&P 500 Index of at
            least 0.95, without taking into account Portfolio expenses. Perfect
            correlation would be 1.00.
 
     ONE GROUP INVESTMENT TRUST DIVERSIFIED EQUITY PORTFOLIO. The Portfolio
     invests mainly in common stocks of companies which the investment advisor
     believes are overlooked or undervalued and that have the potential for
     earnings growth over time.
 
          - At least 65% of the Portfolio's total assets will be invested in
            equity securities.
 
          - Up to 35% of the Portfolio's total assets may be invested in U.S.
            Government Securities, other investment grade fixed income
            securities, cash, and cash equivalents.
 
     ONE GROUP INVESTMENT TRUST DIVERSIFIED MID CAP PORTFOLIO. The Portfolio
     invests mainly in equity securities of companies with capitalizations of
     $500 million to $5 billion.
 
   
          - At least 65% of the Portfolio's total assets will be invested in
            common and preferred stock, rights, warrants, convertible
            securities, and other equity securities.
    
 
          - Up to 25% of the Portfolio's total assets may be invested in foreign
            securities.
 
          - Up to 20% of the Portfolio's total assets may be in invested U.S.
            Government Securities, other investment grade fixed income
            securities, cash, and cash equivalents.
 
          - Up to 5% of the Portfolio's net assets may be invested in lower
            rated convertible securities (including so-called "junk bonds") and
            securities having common stock characteristics (like rights and
            warrants).
 
- ---------------
 
1"S&P 500" is a registered service mark of Standard & Poor's Corporation, which
does not sponsor and is in no way affiliated with One Group Investment Trust.
                                       27
<PAGE>   32
 
     ONE GROUP INVESTMENT TRUST MID CAP VALUE PORTFOLIO. The Portfolio invests
     mainly in equity securities of companies with below-market average
     price-to-earnings and price-to-book value ratios and with market
     capitalizations of $500 million to $5 billion.
 
          - At least 80% of the Portfolio's total assets will be invested in
            equity securities, including common stock, debt securities and
            preferred stocks that are convertible into common stock.
 
          - A portion of the Portfolio's assets will be held in cash
            equivalents.
 
                                       28
<PAGE>   33
 
   
                              FINANCIAL HIGHLIGHTS
    
 
   
The Financial Highlights tables are intended to help you understand each
Portfolio's performance for the period of the Portfolio's operations. Certain
information reflects financial results for a single Portfolio share. The total
returns in the table represent the rate that an investor would have earned or
lost on an investment in a Portfolio (assuming reinvestment of all dividends and
distributions). This information for the Government Bond Portfolio, the Balanced
Portfolio, the Mid Cap Growth Portfolio, the Large Cap Growth Portfolio, and the
Equity Index Portfolio has been audited by PricewaterhouseCoopers LLP, whose
report, along with the Portfolios' financial statements are included in the
Statement of Additional Information, which is available upon request. This
information for the Bond Portfolio, the Diversified Mid Cap Portfolio, the Mid
Cap Value Portfolio, and the Diversified Equity Portfolio has been audited by
Arthur Andersen LLP, whose report, along with the Portfolios' financial
statements are included in the Statement of Additional Information, which is
available upon request.
    
 
                           GOVERNMENT BOND PORTFOLIO
 
   
<TABLE>
<CAPTION>
                                                 1998       1997       1996       1995       1994*
FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD  -------    -------    -------    -------    -------
<S>                                             <C>        <C>        <C>        <C>        <C>
NET ASSET VALUE -- BEGINNING OF PERIOD          $ 10.48    $ 10.15    $ 10.48    $  9.69    $ 10.00
                                                -------    -------    -------    -------    -------
  Net investment income                            0.56       0.60       0.59       0.64       0.22
  Net realized and unrealized appreciation
     (depreciation)                                0.20       0.35      (0.33)      0.94      (0.31)
                                                -------    -------    -------    -------    -------
Total from Investment Operations                   0.76       0.95       0.26       1.58      (0.09)
                                                -------    -------    -------    -------    -------
Distributions:
  From net investment income                      (0.56)     (0.60)     (0.59)     (0.64)     (0.22)
  In excess of net investment income              (0.01)        --         --         --         --
  From net realized gains from investments        (0.03)     (0.02)        --      (0.15)        --
  In excess of realized gains from investment
     transactions                                    --         --         --         --         --
  Tax return of capital                              --         --         --         --         --
                                                -------    -------    -------    -------    -------
Total Distributions                               (0.60)     (0.62)     (0.59)     (0.79)     (0.22)
                                                -------    -------    -------    -------    -------
Net increase (decrease) in net asset value         0.16       0.33      (0.33)      0.79      (0.31)
                                                -------    -------    -------    -------    -------
NET ASSET VALUE -- END OF PERIOD                $ 10.64    $ 10.48    $ 10.15    $ 10.48    $  9.69
                                                =======    =======    =======    =======    =======
Total Return**                                     7.32%      9.67%      2.69%     16.69%     (0.90%)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                $42,187    $22,365    $14,622    $ 9,016    $ 5,112
  Ratio of expenses to average net assets          0.75%      0.75%      0.75%      0.75%      0.75%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements              0.78%      0.88%      1.01%      1.47%      1.94%**
  Ratio of net investment income to average
     net assets                                    5.56%      6.06%      6.11%      6.54%      6.09%**
  Ratio of net investment income to average
     net assets excluding
     waivers/reimbursements                        5.53%      5.93%      5.85%      5.80%      4.90%**
  Portfolio turnover**                             40.4%      21.3%      21.3%      34.1%       3.5%
</TABLE>
    
 
- ---------------
 
*   Initial public offering was August 1, 1994.
 
   
**  Ratios are annualized for periods of less than one year. Total return and
    portfolio turnover are not annualized.
    
 
                                       29
<PAGE>   34
 
                               BALANCED PORTFOLIO
 
   
<TABLE>
<CAPTION>
                                                  1998       1997       1996       1995       1994*
FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD  --------    -------    -------    -------    -------
<S>                                             <C>         <C>        <C>        <C>        <C>
NET ASSET VALUE -- BEGINNING OF PERIOD          $  13.19    $ 11.93    $ 11.24    $  9.81    $ 10.00
                                                --------    -------    -------    -------    -------
  Net investment income                             0.39       0.39       0.34       0.36       0.06
  Net realized and unrealized appreciation
     (depreciation)                                 2.14       2.31       0.98       1.64      (0.19)
                                                --------    -------    -------    -------    -------
Total from Investment Operations                    2.53       2.70       1.32       2.00      (0.13)
                                                --------    -------    -------    -------    -------
Distributions:
  From net investment income                       (0.39)     (0.39)     (0.34)     (0.36)     (0.06)
  From net realized gains from investments         (0.19)     (1.05)     (0.23)     (0.21)        --
  In excess of realized gains from investment
     transactions                                     --         --      (0.04)        --         --
  Tax return of capital                               --         --      (0.02)        --         --
                                                --------    -------    -------    -------    -------
Total Distributions                                (0.58)     (1.44)     (0.63)     (0.57)     (0.06)
                                                --------    -------    -------    -------    -------
Net increase (decrease) in net asset value          1.95       1.26       0.69       1.43      (0.19)
                                                --------    -------    -------    -------    -------
NET ASSET VALUE -- END OF PERIOD                $  15.14    $ 13.19    $ 11.93    $ 11.24    $  9.81
                                                ========    =======    =======    =======    =======
Total Return**                                     19.09%     22.90%     11.92%     20.69%     (1.32%)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                $102,845    $41,446    $14,883    $ 5,455    $ 2,063
  Ratio of expenses to average net assets           1.00%      1.00%      1.00%      1.00%      1.00%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements               1.00%      1.15%      1.44%      1.96%      2.36%**
  Ratio of net investment income to average
     net assets                                     2.66%      3.24%      3.27%      3.66%      1.88%**
  Ratio of net investment income to average
     net assets excluding
     waivers/reimbursements                         2.66%      3.07%      2.83%      2.70%      0.52%**
  Portfolio turnover**                              32.1%      60.9%      64.8%      66.3%        --
</TABLE>
    
 
- ---------------
 
*   Initial public offering was August 1, 1994.
 
   
**  Ratios are annualized for periods of less than one year. Total return and
    portfolio turnover are not annualized.
    
   
    
 
                                       30
<PAGE>   35
 
                            MID CAP GROWTH PORTFOLIO
 
   
<TABLE>
<CAPTION>
                                                 1998       1997       1996       1995       1994*
FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD  -------    -------    -------    -------    -------
<S>                                             <C>        <C>        <C>        <C>        <C>
NET ASSET VALUE -- BEGINNING OF PERIOD          $ 14.21    $ 12.11    $ 11.52    $  9.70    $ 10.00
                                                -------    -------    -------    -------    -------
  Net investment income (loss)                    (0.03)     (0.03)      0.18       0.04         --
  Net realized and unrealized appreciation
     (depreciation)                                5.95       3.63       1.62       2.29      (0.30)
                                                -------    -------    -------    -------    -------
Total from Investment Operations                   5.92       3.60       1.80       2.33      (0.30)
                                                -------    -------    -------    -------    -------
Distributions:
  From net investment income                         --         --      (0.19)     (0.04)        --
  From net realized gains from investments        (1.38)     (1.48)     (0.78)     (0.47)        --
  In excess of realized gains from investment
     transactions                                 (0.03)        --      (0.24)        --         --
  Tax return of capital                           (0.20)     (0.02)        --         --         --
                                                -------    -------    -------    -------    -------
Total Distributions                               (1.61)     (1.50)     (1.21)     (0.51)        --
                                                -------    -------    -------    -------    -------
Net increase (decrease) in net asset value         4.31       2.10       0.59       1.82      (0.30)
                                                -------    -------    -------    -------    -------
NET ASSET VALUE -- END OF PERIOD                $ 18.52    $ 14.21    $ 12.11    $ 11.52    $  9.70
                                                =======    =======    =======    =======    =======
Total Return**                                    38.82%     29.81%     15.67%     24.06%     (3.00%)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                $92,674    $50,707    $22,339    $ 6,685    $   940
  Ratio of expenses to average net assets          0.97%      1.10%      1.06%      0.90%      0.90%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements              0.97%      1.11%      1.40%      2.78%      2.96%**
  Ratio of net investment income to average
     net assets                                   (0.25%)    (0.25%)     1.85%      0.46%     (0.17%)**
  Ratio of net investment income to average
     net assets excluding
     waivers/reimbursements                       (0.25%)    (0.26%)     1.51%     (1.42%)    (2.22%)**
  Portfolio turnover**                             87.7%     175.6%     326.9%     193.3%       3.5%
</TABLE>
    
 
- ---------------
 
*   Initial public offering was August 1, 1994.
 
   
**  Ratios are annualized for periods of less than one year. Total return and
    portfolio turnover are not annualized.
    
 
                                       31
<PAGE>   36
 
   
                             LARGE CAP GROWTH FUND
    
 
   
<TABLE>
<CAPTION>
                                                  1998       1997       1996       1995       1994*
FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD  --------    -------    -------    -------    -------
<S>                                             <C>         <C>        <C>        <C>        <C>
NET ASSET VALUE -- BEGINNING OF PERIOD          $  17.21    $ 13.67    $ 12.12    $  9.99    $ 10.00
                                                --------    -------    -------    -------    -------
  Net investment income                             0.06       0.10       0.16       0.20       0.05
  Net realized and unrealized appreciation
     (depreciation)                                 7.03       4.25       1.86       2.20       0.01
                                                --------    -------    -------    -------    -------
Total from Investment Operations                    7.09       4.35       2.02       2.40       0.06
                                                --------    -------    -------    -------    -------
Distributions:
  From net investment income                       (0.06)     (0.10)     (0.16)     (0.20)     (0.05)
  From net realized gains from investments         (1.61)     (0.71)     (0.30)     (0.07)     (0.02)
  In excess of realized gains from investment
     transactions                                     --         --      (0.01)        --         --
  Tax return of capital                               --         --         --         --         --
                                                --------    -------    -------    -------    -------
Total Distributions                                (1.67)     (0.81)     (0.47)     (0.27)     (0.07)
                                                --------    -------    -------    -------    -------
Net increase (decrease) in net asset value          5.42       3.54       1.55       2.13      (0.01)
                                                --------    -------    -------    -------    -------
NET ASSET VALUE -- END OF PERIOD                   22.63    $ 17.21    $ 13.67    $ 12.12    $  9.99
                                                ========    =======    =======    =======    =======
Total Return**                                     41.27%     31.93%     16.67%     24.13%     (0.52%)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                $202,035    $99,628    $42,893    $16,119    $ 4,175
  Ratio of expenses to average net assets           0.93%      1.00%      0.98%      0.90%      0.90%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements               0.93%      1.00%      1.16%      1.64%      2.08%**
  Ratio of net investment income to average
     net assets                                     0.32%      0.69%      1.29%      2.02%      1.39%**
  Ratio of net investment income to average
     net assets excluding
     waivers/reimbursements                         0.32%      0.69%      1.11%      1.28%      0.22%**
  Portfolio turnover**                              61.0%      34.4%      38.7%      37.4%       4.4%
</TABLE>
    
 
- ---------------
 
*   Initial public offering was August 1, 1994.
 
   
**  Ratios are annualized for periods of less than one year. Total return and
    portfolio turnover are not annualized.
    
 
                                       32
<PAGE>   37
 
                             EQUITY INDEX PORTFOLIO
 
   
<TABLE>
<CAPTION>
                                                               1998*
       FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD         -------
<S>                                                           <C>
NET ASSET VALUE -- BEGINNING OF PERIOD                        $ 10.00
                                                              -------
  Net investment income                                          0.08
  Net realized and unrealized appreciation (depreciation)        0.97
                                                              -------
Total from Investment Operations                                 1.05
                                                              -------
Distributions:
  From net investment income                                    (0.08)
  From net realized gains from investments                         --
  In excess of realized gains from investment transactions         --
  Tax return of capital                                            --
                                                              -------
Total Distributions                                             (0.08)
                                                              -------
Net increase (decrease) in net asset value                       0.97
NET ASSET VALUE -- END OF PERIOD                              $ 10.97
                                                              -------
Total Return**                                                  10.52%
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                              $14,481
  Ratio of expenses to average net assets                        0.55%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements                            1.13%**
  Ratio of net investment income to average net assets           1.45%**
  Ratio of net investment income to average net assets
     excluding waivers/reimbursements                            0.87%**
  Portfolio turnover**                                            2.3%
</TABLE>
    
 
- ---------------
 
*   Initial public offering was May 1, 1998.
 
   
**  Ratios are annualized for periods of less than one year. Total return and
    portfolio turnover are not annualized.
    
 
                                       33
<PAGE>   38
 
                                 BOND PORTFOLIO
 
   
<TABLE>
<CAPTION>
                                                                 1998       1997*
       FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD            ----       -----
<S>                                                             <C>        <C>
NET ASSET VALUE -- BEGINNING OF PERIOD                          $ 10.44    $ 10.00
                                                                -------    -------
  Net investment income                                            0.57       0.37
  Net realized and unrealized appreciation (depreciation)          0.31       0.45
                                                                -------    -------
Total from Investment Operations                                   0.88       0.82
                                                                -------    -------
Distributions:
  From net investment income                                      (0.58)     (0.37)
  From net realized gains from investments                        (0.01)     (0.01)
  In excess of realized gains from investment transactions           --         --
  Tax return of capital                                              --         --
                                                                -------    -------
Total Distributions                                               (0.59)     (0.38)
                                                                -------    -------
Net increase (decrease) in net asset value                         0.29       0.44
                                                                -------    -------
NET ASSET VALUE -- END OF PERIOD                                $ 10.73    $ 10.44
                                                                =======    =======
Total Return                                                       8.66%     12.29%**
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                                $60,892    $34,230
  Ratio of expenses to average net assets                          0.75%      0.75%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements                              0.81%      0.77%**
  Ratio of net investment income to average net assets             5.36%      5.97%**
  Portfolio turnover                                               14.5%      14.8%**
</TABLE>
    
 
- ---------------
   
 * Commenced operations on May 1, 1997.
    
   
** Annualized.
    
 
                                       34
<PAGE>   39
 
                         DIVERSIFIED MID CAP PORTFOLIO
 
   
<TABLE>
<CAPTION>
                                                      1998      1997      1996      1995*
  FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD     -------   -------   -------   -------
<S>                                                  <C>       <C>       <C>       <C>
NET ASSET VALUE -- BEGINNING OF PERIOD               $ 14.38   $ 13.46   $ 11.02   $ 10.00
                                                     -------   -------   -------   -------
  Net investment income (loss)                         (0.01)     0.01      0.03      0.05
  Net realized and unrealized appreciation
     (depreciation)                                     0.70      3.55      2.67      1.02
                                                     -------   -------   -------   -------
Total from Investment Operations                        0.69      3.56      2.70      1.07
                                                     -------   -------   -------   -------
Distributions:
  From net investment income                              --     (0.01)    (0.03)    (0.05)
  From net realized gains from investments             (0.31)    (2.63)    (0.23)       --
  In excess of realized gains from investment
     transactions                                         --        --        --        --
  Tax return of capital                                   --        --        --        --
                                                     -------   -------   -------   -------
Total Distributions                                    (0.31)    (2.64)    (0.26)    (0.05)
                                                     -------   -------   -------   -------
Net increase (decrease) in net asset value              0.38      0.92      2.44      1.02
                                                     -------   -------   -------   -------
NET ASSET VALUE -- END OF PERIOD                     $ 14.76   $ 14.38   $ 13.46   $ 11.02
                                                     =======   =======   =======   =======
Total Return                                            4.91%    26.65%    24.53%    14.20%**
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                     $18,160   $11,668   $ 9,216   $ 4,972
  Ratio of expenses to average net assets               0.95%     0.91%     0.85%     0.85%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements                   1.52%     1.49%     2.11%     4.64%**
  Ratio of net investment income (loss) to average
     net assets                                        (0.10)%    0.04%     0.28%     0.67%**
  Portfolio turnover                                    26.2%     80.7%     37.4%     32.1%
</TABLE>
    
 
- ---------------
   
 * Commenced operations on March 30, 1995.
    
   
** Annualized.
    
 
                                       35
<PAGE>   40
 
                            MID CAP VALUE PORTFOLIO
 
   
<TABLE>
<CAPTION>
                                                                 1998       1997*
       FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD            ----       -----
<S>                                                             <C>        <C>
NET ASSET VALUE -- BEGINNING OF PERIOD                          $ 11.53    $ 10.00
                                                                -------    -------
  Net investment income                                            0.21       0.12
  Net realized and unrealized appreciation (depreciation)         (0.58)      1.57
                                                                -------    -------
Total from Investment Operations                                  (0.37)      1.69
                                                                -------    -------
Distributions:
  From net investment income                                      (0.21)     (0.12)
  From net realized gains from investments                        (0.20)     (0.04)
  In excess of realized gains from investment transactions        (0.05)        --
  Tax return of capital                                              --         --
                                                                -------    -------
Total Distributions                                               (0.46)     (0.16)
                                                                -------    -------
Net increase (decrease) in net asset value                        (0.83)      1.53
                                                                -------    -------
NET ASSET VALUE -- END OF PERIOD                                $ 10.70    $ 11.53
                                                                =======    =======
Total Return                                                      -3.31%     25.26%**
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                                $22,501    $13,926
  Ratio of expenses to average net assets                          0.95%      0.95%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements                              1.27%      1.22%**
  Ratio of net investment income to average net assets             1.90%      1.83%**
  Portfolio turnover                                               39.3%      19.6%**
</TABLE>
    
 
- ---------------
   
 * Commenced operations on May 1, 1997.
    
   
** Annualized.
    
 
                                       36
<PAGE>   41
 
                          DIVERSIFIED EQUITY PORTFOLIO
 
   
<TABLE>
<CAPTION>
 FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD      1998       1997       1996     1995*
<S>                                                 <C>        <C>        <C>       <C>
NET ASSET VALUE -- BEGINNING OF PERIOD              $ 16.22    $ 13.19    $11.63    $10.00
                                                    -------    -------    ------    ------
  Net investment income                                0.11       0.13      0.15      0.13
  Net realized and unrealized appreciation
     (depreciation)                                    2.00       3.38      2.02      1.63
                                                    -------    -------    ------    ------
Total from Investment Operations                       2.11       3.51      2.17      1.76
                                                    -------    -------    ------    ------
Distributions:
  From net investment income                          (0.12)     (0.13)    (0.14)    (0.13)
  From net realized gains from investments            (0.41)     (0.35)    (0.47)       --
  In excess of realized gains from investment
     transactions                                        --         --        --        --
  Tax return of capital                                  --         --        --        --
                                                    -------    -------    ------    ------
Total Distributions                                   (0.53)     (0.48)    (0.61)    (0.13)
                                                    -------    -------    ------    ------
Net increase (decrease) in net asset value             1.58       3.03      1.56      1.63
                                                    -------    -------    ------    ------
NET ASSET VALUE -- END OF PERIOD                    $ 17.80    $ 16.22    $13.19    $11.63
                                                    =======    =======    ======    ======
Total Return                                          13.10%     26.80%    18.75%    22.75%**
RATIOS AND SUPPLEMENTAL DATA:
  Net assets end of period (000)                    $59,560    $38,705    $8,603    $3,754
  Ratio of expenses to average net assets              0.95%      0.93%     0.85%     0.85%**
  Ratio of expenses to average net assets
     excluding waivers/reimbursements                  1.02%      1.10%     2.27%     4.93%**
  Ratio of net investment income to average net
     assets                                            0.69%      0.93%     1.35%     1.78%**
  Portfolio turnover                                   43.2%      31.1%     46.8%     17.5%**
</TABLE>
    
 
   
 * Commenced operations in March 30, 1995.
    
 
   
** Annualized.
    
 
                                       37
<PAGE>   42
 
   
                                   APPENDIX A
    
 
   
INVESTMENT PRACTICES
    
 
   
The Portfolios invest in a variety of securities and employ a number of
investment techniques. Each security and technique involves certain risks. What
follows is a list of the securities and techniques utilized by the Portfolios,
as well as the risks inherent in their use. Equity securities are subject mainly
to market risk. Fixed income securities are primarily influenced by market,
credit and prepayment risks, although certain securities may be subject to
additional risks. For a more complete discussion, see the Statement of
Additional Information. Following the table is a more complete discussion of
risk.
    
 
   
<TABLE>
<CAPTION>
                       PORTFOLIO NAME                             PORTFOLIO CODE
                       --------------                             --------------
<S>                                                             <C>
One Group Investment Trust Bond Portfolio                           1
One Group Investment Trust Government Bond Portfolio                2
One Group Investment Trust Balanced Portfolio                       3
One Group Investment Trust Mid Cap Growth Portfolio                 4
One Group Investment Trust Large Cap Growth Portfolio               5
One Group Investment Trust Equity Index Portfolio                   6
One Group Investment Trust Diversified Equity Portfolio             7
One Group Investment Trust Diversified Mid Cap Portfolio            8
One Group Investment Trust Mid Cap Value Portfolio                  9
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                         INSTRUMENT                           PORTFOLIO CODE       RISK TYPE
                         ----------                           --------------       ---------
<S>                                                           <C>              <C>
U.S. Treasury Obligations: Bills, notes,                           1-9               Market
bonds, STRIPS, and CUBES.

Treasury Receipts: TRS, TIGRs, and CATS.                           1-9               Market

U.S. Government Agency Securities: Securities                      1-9               Market
issued by agencies and instrumentalities of                                          Credit
the U.S. Government. These include Ginnie Mae
Fannie Mae, and Freddie Mac.

Certificates of Deposit: Negotiable instruments with a            1, 3-9             Market
stated maturity.                                                                     Credit
                                                                                   Liquidity

Time Deposits: Non-negotiable receipts issued by a bank in        1, 3-9           Liquidity
exchange for the deposit of Portfolios.                                              Credit
                                                                                     Market

Common Stock: Shares of ownership of a company.                    3-9               Market

Repurchase Agreements: The purchase of a security and the          1-9               Credit
simultaneous commitment to return the security to the seller                         Market
at an agreed upon price on an agreed upon date. This is                            Liquidity
treated as a loan.

Reverse Repurchase Agreement: The sale of a security and the       1-9               Market
simultaneous commitment to buy the security back at an                              Leverage
agreed upon price on an agreed upon date. This is treated as
a borrowing by a Portfolio.

Securities Lending: The lending of up to 33 1/3% of the            1-9               Credit
Portfolio's total assets. In return the Portfolio will                               Market
receive cash, other securities, and/or letters of credit.                           Leverage

When-Issued Securities and Forward Commitments: Purchase or        1-9               Market
contract to purchase securities at a fixed price for                                Leverage
delivery at a fixed price for delivery at a future date.                           Liquidity
                                                                                     Credit

Investment Company Securities: Shares of other mutual funds,       1-9               Market
including money market funds of One Group(R) and shares of
other investment companies for which Banc One Investment
Advisors serves as investment advisor or administrator Banc
One Investment Advisors will waive certain fees when
investing in funds or portfolios for which it serves as
investment advisor.

Convertible Securities: Bonds or preferred stock that             1, 3-9             Market
convert to common stock.                                                             Credit
</TABLE>
    
 
                                       A-1
<PAGE>   43
 
   
<TABLE>
<CAPTION>
                         INSTRUMENT                           PORTFOLIO CODE       RISK TYPE
                         ----------                           --------------       ---------
<S>                                                           <C>              <C>
Call and Put Options: A call option gives the buyer the            1-9             Management
right to buy, and obligates the seller of the option to                            Liquidity
sell, a security at a specified price. A put option gives                            Credit
the buyer the right to sell, and obligates the seller of the                         Market
option to buy, a security at a specified price. The                                 Leverage
Portfolios will sell only covered call and secured put
options.

Futures and Related Options: A contract providing for the          1-9             Management
future sale and purchase of a specified amount of a                                  Market
specified security, class of securities, or an index at a                            Credit
specified time in the future and at a specified price.                             Liquidity
                                                                                    Leverage

Real Estate Investment Trusts ("REITs"): Pooled investment         3-9             Liquidity
vehicles which invest primarily in income producing real                           Management
estate or real estate related loans or interest.                                     Market
                                                                                   Regulatory
                                                                                      Tax
                                                                                  Pre-payment

Bankers' Acceptances: Bills of exchange or time drafts drawn      1, 3-9             Credit
on and accepted by a commercial bank. Maturities are                               Liquidity
generally six months or less.                                                        Market

Commercial Paper: Secured and unsecured short-term                1, 3-9             Credit
promissory notes issued by corporations and other entities.                        Liquidity
Maturities generally vary from a few days to nine months.                            Market

Foreign Securities: Stocks issued by foreign companies, as     1, 3-5, 7-9           Market
well as commercial paper of foreign issuers and obligations                        Political
of foreign banks, overseas branches of U.S. banks and                              Liquidity
supranational entities. The Equity Portfolios may also                         Foreign Investment
invest in American Depository Receipts.

Restricted Securities: Securities not registered under the         1-9             Liquidity
Securities Act of 1933, such as privately placed commercial                          Market
paper and Rule 144A securities.

Variable and Floating Rate Instruments: Obligations with           1-9               Credit
interest rates which are reset daily, weekly, quarterly or                         Liquidity
some other period and which may be payable to the Portfolio                          Market
on demand.

Warrants: Securities, typically issued with preferred stock       3, 5-8             Market
or bonds, that give the holder the right to buy a                                    Credit
proportionate amount of common stock at a specified price.

Preferred Stock: A class of stock that generally pays a           1, 3-9             Market
dividend at a specified rate and has preference over common
stock at a specified rate and has preference over common
stock in the payment of dividends and in liquidation

Mortgage-Backed Securities: Debt obligations secured by real      1-3, 8          Pre-payment
estate loans and pools of loans. These include                                       Market
collateralized mortgage obligations ("CMOs") and Real Estate                         Credit
Mortgage Investment Conduits ("REMICs").                                           Regulatory

Corporate Debt Securities: Corporate bonds and                   1, 3, 5             Market
non-convertible debt securities.                                                     Credit

Demand Features: Securities that are subject to puts and           1, 3              Market
standby commitments to purchase the securities at a fixed                          Liquidity
price (usually with accrued interest) within a fixed period                        Management
of time following demand by a Portfolio.

Asset-Backed Securities: Securities secured by company           1, 3, 8          Pre-payment
receivables, home equity loans, truck and auto loans,                                Market
leases, credit card receivables and other securities backed                          Credit
by other types of receivables or other assets.                                     Regulatory

Mortgage Dollar Rolls: A transaction in which a Portfolio         1-3, 8          Pre-payment
sells securities for delivery in a current month and                                 Market
simultaneously contracts with the same party to repurchase                         Regulatory
similar but not identical securities on a specified future
date.

Adjustable Rate Mortgage Loans ("ARMs"): Loans in a mortgage       1-3            Pre-payment
pool which provide for a fixed initial mortgage interest                             Market
rate for a specified period of time, after which the rate                            Credit
may be subject to periodic adjustments.                                            Regulatory
</TABLE>
    
 
                                       A-2
<PAGE>   44
 
   
<TABLE>
<CAPTION>
                         INSTRUMENT                           PORTFOLIO CODE       RISK TYPE
                         ----------                           --------------       ---------
<S>                                                           <C>              <C>
Swaps, Caps and Floors: A Portfolio may enter into these           1-9             Management
transactions to manage its exposure to changing interest                             Credit
rates and other factors. Swaps involve an exchange of                              Liquidity
obligations by two parties. Caps and floors entitle a                                Market
purchaser to a principal amount from the seller of the cap
or floor to the extent that a specified index exceeds or
falls below a predetermined interest rate or amount.
New Financial Products: New options and futures contracts          1-9             Management
and other financial products continue to be developed and                            Credit
the Portfolios may invest in such options, contracts and                             Market
products.                                                                          Liquidity
Structured Instruments: Debt securities issued by agencies         1-3               Market
and instrumentalities of the U.S. government, banks,                               Liquidity
municipalities, corporations and other businesses whose                            Management
interest and/or principal payments are indexed to foreign                            Credit
currency exchange rates, interest rates, or one or more                        Foreign Investment
other referenced indices.
Municipal Securities: Securities issued by a state or              1-3               Market
political subdivision to obtain funds for various public                             Credit
purposes Municipal securities include private activity bonds                       Political
and industrial development bonds, as well as General                                  Tax
Obligation Notes, Tax Anticipation Notes, Bond Anticipation                        Regulatory
Notes, Revenue Anticipation Notes, Project Notes, other
short-term tax-exempt obligations, municipal leases, and
obligations of municipal housing authorities and single
family revenue bonds.
Obligations of Supranational Agencies: Obligations of               8                Credit
supranational agencies who are chartered to promote economic                   Foreign Investment
development and are supported by various governments and
governmental agencies.
Zero-Coupon Debt Securities: Bonds and other debt that pay       1, 2, 8             Credit
no interest, but are issued at a discount from their value                           Market
at maturity. When held to maturity, their entire return                           Zero Coupon
equals the difference between their issue price and their
maturity value.
Standard & Poor's Depository Receipts ("SPDRs"): SPDRs            3-7, 9             Market
represent ownership in a long-term unit investment trust
that holds a portfolio of common stocks designed to track
the price performance and dividend yield of the S&P 500
Index. A SPDR entitles a holder to receive proportionate
quarterly cash distributions corresponding to the dividends
that accrue to the S&P 500 Index stocks in the underlying
portfolio, less trust expenses.
Zero-Fixed-Coupon Debt Securities: Zero coupon debt              1, 2, 8             Credit
securities which convert on a specified date to interest                             Market
bearing debt securities.                                                          Zero Coupon
Stripped Mortgage-Backed Securities: Derivative multi-class        1, 2           Pre-payment
mortgage securities which are usually structured with two                            Market
classes of shares that receive different proportions of the                          Credit
interest and principal from a pool of mortgage assets. These                       Regulatory
include interest only stripped mortgage-backed securities
(IOs) and principal only stripped mortgage-backed securities
(POs).
Inverse Floating Rate Instruments: Floating rate debt              1, 2              Market
instruments with interest rates that reset in the opposite                          Leverage
direction from the market rate of interest to which the                              Credit
inverse floater is indexed.
Loan Participations and Assignments: Participations in, or          1                Credit
assignments of all or a portion of loans to corporations or                        Political
to governments, including governments of less developed                            Liquidity
countries ("LDC's").                                                           Foreign Investment
                                                                                     Market
Fixed Rate Mortgage Loans: Investments in fixed rate               1, 2              Credit
mortgage loans or mortgage pools which bear simple interest                       Pre-payment
at fixed annual rates and have original terms ranging from 5                       Regulatory
to 40 years.                                                                         Market
Short-Term Funding Agreements: Investments in short-term            1                Credit
funding agreements issued by banks and highly rated U.S.                           Liquidity
insurance companies such as Guaranteed Investment Contracts                          Market
("GIC's") and Bank Investment Contracts ("BIC's").
</TABLE>
    
 
                                       A-3
<PAGE>   45
 
   
INVESTMENT RISKS
    
 
Below is a more complete discussion of the types of risks inherent in the
securities and investment techniques listed above. Because of these risks, the
value of the securities held by the Portfolios may fluctuate, as will the value
of your investment in the Portfolios. Certain investments are more susceptible
to these risks than others.
 
   
- -     Credit Risk. The risk that the issuer of a security, or the counterparty
      to a contract, will default or otherwise become unable to honor a
      financial obligation. Credit risk is generally higher for non-investment
      grade securities. The price of a security can be adversely affected prior
      to actual default as its credit status deteriorates and the probability of
      default rises.
    
 
   
- -     Leverage Risk. The risk associated with securities or practices that
      multiply small index or market movements into large changes in value.
      Leverage is often associated with investments in derivatives, but also may
      be embedded directly in the characteristics of other securities.
    
 
   
- -     Hedged. When a derivative (a security whose value is based on another
      security or index) is used as a hedge against an opposite position that
      the Portfolio also holds, any loss generated by the derivative should be
      substantially offset by gains on the hedged investment, and vice versa.
      While hedging can reduce or eliminate losses, it can also reduce or
      eliminate gains. Hedges are sometimes subject to imperfect matching
      between the derivative and underlying security, and there can be no
      assurance that a Portfolio's hedging transactions will be effective.
    
 
   
- -     Speculative. To the extent that a derivative is not used as a hedge, the
      Portfolio is directly exposed to the risks of that derivative. Gains or
      losses from speculative positions in a derivative may be substantially
      greater than the derivative's original cost.
    
 
   
- -     Liquidity Risk. The risk that certain securities may be difficult or
      impossible to sell at the time and the price that would normally prevail
      in the market. The seller may have to lower the price, sell other
      securities instead or forego an investment opportunity, any of which could
      have a negative effect on Portfolio management or performance. This
      includes the risk of missing out on an investment opportunity because the
      assets necessary to take advantage of it are tied up in less advantageous
      investments.
    
 
   
- -     Management Risk. The risk that a strategy used by a Portfolio's management
      may fail to produce the intended result. This includes the risk that
      changes in the value of a hedging instrument will not match those of the
      asset being hedged. Incomplete matching can result in unanticipated risks.
    
 
   
- -     Market Risk. The risk that the market value of a security may move up and
      down, sometimes rapidly and unpredictably. These fluctuations may cause a
      security to be worth less than the price originally paid for it, or less
      than it was worth at an earlier time. Market risk may affect a single
      issuer, industry, sector of the economy or the market as a whole. There is
      also the risk that the current interest rate may not accurately reflect
      existing market rates. For fixed income securities, market risk is
      largely, but not exclusively, influenced by changes in interest rates. A
      rise in interest rates typically causes a fall in values, while a fall in
      rates typically causes a rise in values. Finally, key information about a
      security or market may be inaccurate or unavailable. This is particularly
      relevant to investments in foreign securities.
    
 
   
- -     Political Risk. The risk of losses attributable to unfavorable
      governmental or political actions, seizure of foreign deposits, changes in
      tax or trade statutes, and governmental collapse and war.
    
 
   
- -     Foreign Investment Risk. The risk associated with higher transaction
      costs, delayed settlements, currency controls and adverse economic
      developments. This also includes the risk that fluctuations in the
      exchange rates between the U.S. dollar and foreign currencies may
      negatively affect an investment. Adverse changes in exchange rates may
      erode or reverse any gains produced by foreign currency denominated
      investments and may widen any losses. Exchange rate volatility also my
      affect the ability of an issuer to repay U.S. dollar denominated debt,
      thereby increasing credit risk.
    
 
- -     Pre-Payment Risk. The risk that the principal repayment of a security will
      occur at an unexpected time, especially that the repayment of a mortgage
      or asset-backed security occurs either significantly sooner or later than
      expected. Changes in pre-payment rates can result in greater price and
      yield volatility.
                                       A-4
<PAGE>   46
 
      Pre-payments generally accelerate when interest rates decline. When
      mortgage and other obligations are pre-paid, a Portfolio may have to
      reinvest in securities with a lower yield. Further, with early prepayment,
      a Portfolio may fail to recover any premium paid, resulting in an
      unexpected capital loss.
 
- -     Tax Risk. The risk that the issuer of the securities will fail to comply
      with certain requirements of the Internal Revenue Code, which would cause
      adverse tax consequences.
 
- -     Regulatory Risk. The risk associated with Federal and state laws which may
      restrict the remedies that a lender has when a borrower defaults on loans.
      These laws include restrictions on foreclosures, redemption rights after
      foreclosure, Federal and state bankruptcy and debtor relief laws,
      restrictions on "due on sale" clauses, and state usury laws.
 
- -     Zero Coupon Risk. The market prices of securities structured as zero
      coupon or pay-in-kind securities are generally affected to a greater
      extent by interest rate changes. These securities tend to be more volatile
      than securities which pay interest periodically.
 
                                       A-5
<PAGE>   47
 
If you want more information about the Portfolios, the following documents are
free upon request:
 
ANNUAL/SEMI-ANNUAL REPORTS:  Additional information about the Portfolios'
investments is available in the Portfolios' annual and semi-annual reports to
shareholders. In each Portfolio's annual report, you will find a discussion of
the market conditions and investment strategies that significantly affected the
Portfolio's performance during its last fiscal year.
 
STATEMENT OF ADDITIONAL INFORMATION ("SAI"):  The SAI provides more detailed
information about the Portfolios and is incorporated into this prospectus by
reference.
 
HOW CAN I GET MORE INFORMATION?  You can get a free copy of the
semiannual/annual reports or the SAI, request other information or discuss your
questions about the Portfolio by calling 1 800-860-3946 or by writing the
Portfolios at:
 
     One Group(R) Investment Trust
     One Nationwide Plaza
     Columbus, Ohio 43216
 
You can also review and copy the Portfolios' reports and the SAI at the Public
Reference Room of the Securities and Exchange Commission ("SEC"). (For
information about the SEC's Public Reference Room call 1-800-SEC-0330). You can
also get reports and other information about the Portfolios from the SEC's web
site at http://www.sec.gov or by writing the Public Reference Section of the
SEC, Washington, D.C. 20549-6009 and paying a copying charge.
 
VARIABLE ANNUITY AND LIFE INSURANCE CONTRACTS:  This prospectus is for use with
variable life insurance contracts and variable annuity contracts. All questions
regarding variable annuity contracts or variable life insurance contracts should
be directed to the address in the prospectus that you received when you
purchased your variable annuity or variable life product.
 
(Investment Company Act File No. 811-7874)
<PAGE>   48

                       STATEMENT OF ADDITIONAL INFORMATION

                          ONE GROUP(R) INVESTMENT TRUST

        ONE GROUP INVESTMENT TRUST BOND PORTFOLIO (THE "BOND PORTFOLIO")

 ONE GROUP INVESTMENT TRUST GOVERNMENT BOND PORTFOLIO (THE "GOVERNMENT BOND 
                                  PORTFOLIO")

   
     ONE GROUP INVESTMENT TRUST BALANCED PORTFOLIO (THE "BALANCED PORTFOLIO")
    

  ONE GROUP INVESTMENT TRUST LARGE CAP GROWTH PORTFOLIO (THE "LARGE CAP GROWTH
                                  PORTFOLIO")

 ONE GROUP INVESTMENT TRUST EQUITY INDEX PORTFOLIO (THE "EQUITY INDEX 
                                  PORTFOLIO")

             ONE GROUP INVESTMENT TRUST DIVERSIFIED EQUITY PORTFOLIO
                      (THE "DIVERSIFIED EQUITY PORTFOLIO")

            ONE GROUP INVESTMENT TRUST DIVERSIFIED MID CAP PORTFOLIO
                      (THE "DIVERSIFIED MID CAP PORTFOLIO")

    ONE GROUP INVESTMENT TRUST MID CAP GROWTH PORTFOLIO (THE "MID CAP GROWTH
                                  PORTFOLIO")

               ONE GROUP INVESTMENT TRUST MID CAP VALUE PORTFOLIO
                         (THE "MID CAP VALUE PORTFOLIO")

             (EACH A "PORTFOLIO," AND COLLECTIVELY THE "PORTFOLIOS")

   
                                 MARCH 31, 1999
    

   
         This Statement of Additional Information is not a Prospectus, but
supplements and should be read with the Prospectus dated March 31, 1999 for the
Portfolios (the "Prospectus"). This Statement of Additional Information is
incorporated in its entirety into the Prospectus. A copy of the Prospectus may
be obtained by writing to One Group Investment Trust (the "Trust") at One
Nationwide Plaza, Columbus, Ohio 43215 or by calling toll free at
1-800-860-3946.
    

<PAGE>   49



<TABLE>
<CAPTION>
                                TABLE OF CONTENTS

                                                                                                                     Page

<S>                                                                                                                <C>
THE TRUST................................................................................................................1
INVESTMENT OBJECTIVES AND POLICIES.......................................................................................3
   Additional Information on Portfolio Investments.......................................................................3
       Asset-Backed Securities...........................................................................................3
       Bank Obligations..................................................................................................3
       Commercial Paper..................................................................................................4
       Common Stock......................................................................................................4
       Convertible Securities............................................................................................4
       Demand Features...................................................................................................4
       Foreign Investments...............................................................................................5
       Limitations on the Use of Foreign Investments.....................................................................5
       Futures and Options Trading.......................................................................................6
         Futures Contracts...............................................................................................6
         Limitations on the Use of Futures Contracts.....................................................................7
         Risk Factors in Futures Transactions............................................................................8
         Options Contracts...............................................................................................9
         Writing (Selling) Covered Calls.................................................................................9
         Purchasing Call Options........................................................................................11
         Purchasing Put Options.........................................................................................11
         Secured Puts...................................................................................................11
         Straddles and Spreads..........................................................................................11
         Risk Factors in Options Transactions...........................................................................11
         Limitations on the Use of Options..............................................................................12
       Government Securities............................................................................................12
       High Yield/High Risk Securities/Junk Bonds.......................................................................13
       Investment Company Securities....................................................................................13
       Loan Participations and Assignments..............................................................................14
       Mortgage-Related Securities......................................................................................14
         Mortgage-Backed Securities (CMOs and REMICs)...................................................................14
         Mortgage Dollar Rolls..........................................................................................16
         Stripped Mortgage Backed Securities............................................................................17
         Adjustable Rate Mortgage Loans.................................................................................17
         Risk Factors of Mortgage-Related Securities....................................................................18
       Municipal Securities.............................................................................................19
         Risk Factors in Municipal Securities...........................................................................21
       PERCs............................................................................................................23
       Preferred Stock..................................................................................................23
       Real Estate Investment Trusts ("REITs")..........................................................................23
       Repurchase Agreements............................................................................................24
       Reverse Repurchase Agreements....................................................................................24
       Restricted Securities............................................................................................24
       Securities Lending...............................................................................................26
       Short-term Funding Agreements....................................................................................26
       SPDRs............................................................................................................26
       Structured Instruments...........................................................................................27
       Swaps, Caps and Floors...........................................................................................27
       Treasury Receipts................................................................................................29
       U.S. Treasury Obligations........................................................................................29
       Variable and Floating Rate Instruments...........................................................................29
       Limitations on the Use of Variable and Floating Rate Notes.......................................................30
       Warrants.........................................................................................................30
       When-Issued Securities and Forward Commitments.................................................................. 30
    Investment Restrictions.............................................................................................31
    Portfolio Turnover..................................................................................................32
    Additional Tax Information Concerning All Portfolios................................................................33
VALUATION...............................................................................................................34
Valuation of the Portfolios.............................................................................................34
ADDITIONAL INFORMATION REGARDING THE
</TABLE>

                                       ii
<PAGE>   50
   
<TABLE>
<S>                                                                                                                    <C>
    CALCULATION OF PER SHARE NET ASSET VALUE............................................................................35
Additional Purchase and Redemption Information..........................................................................35
MANAGEMENT OF THE TRUST.................................................................................................35
       Trustees & Officers..............................................................................................35
       Investment Advisor...............................................................................................37
       Glass-Steagall Act...............................................................................................40
       Portfolio Transactions...........................................................................................40
       Administrator....................................................................................................41
       Custodian and Transfer Agent.....................................................................................43
       Experts .........................................................................................................44
ADDITIONAL INFORMATION..................................................................................................44
       Description of Shares............................................................................................44
       Shareholder and Trustee Liability................................................................................46
       Shareholders.....................................................................................................46
       Calculation of Performance Data..................................................................................48
       Miscellaneous....................................................................................................50
FINANCIAL STATEMENTS ...................................................................................................51
DESCRIPTION OF RATINGS 
</TABLE>
    

                                      iii

<PAGE>   51
                                    THE TRUST

One Group Investment Trust(formerly called The One Group Investment Trust) (the
"Trust") is an open-end management investment company. The Trust was formed as a
Massachusetts business trust on June 7, 1993. The Trust consists of nine series
of units of beneficial interest ("Shares") each representing interests in one of
the following separate investment portfolios:

       1. Bond Portfolio (formerly called the Bond Fund)
       2. Government Bond Portfolio (formerly called the Government Bond
          Fund)
       3. Balanced Portfolio (formerly called the Asset Allocation Fund)
       4. Mid Cap Growth Portfolio (formerly called the Growth
          Opportunities Fund)
       5. Large Cap Growth Portfolio (formerly called the Large Company
          Growth Fund)
       6. Equity Index Portfolio (formerly called the Equity Index Fund)
       7. Diversified Equity Portfolio (formerly called the Value Growth
          Fund)
       8. Diversified Mid Cap Portfolio (formerly called the Mid Cap
          Opportunities Fund)
       9. Mid Cap Value Portfolio (formerly called the Mid Cap Value
          Fund)


For ease of reference, this Statement of Additional Information sometimes refers
to the portfolios as the BOND PORTFOLIOS and the EQUITY PORTFOLIOS.

The BOND PORTFOLIOS include:

       1. Bond Portfolio and
       2. Government Bond Portfolio.


The EQUITY PORTFOLIOS include:

       1. Balanced Portfolio,
       2. Mid Cap Growth Portfolio,
       3. Large Cap Growth Portfolio,
       4. Equity Index Portfolio,
       5. Diversified Equity Portfolio,
       6. Diversified Mid Cap Portfolio, and
       7. Mid Cap Value Portfolio.


All of the Portfolios are diversified, as defined under the Investment Company
Act of 1940, as amended, (the "1940 ACT").

   
SUBSTITUTION OF ONE GROUP INVESTMENT TRUST PORTFOLIOS FOR PEGASUS VARIABLE
FUNDS. On March 31, 1999, the following portfolios of the Trust were substituted
for the following Pegasus Variable funds in separate accounts maintained by
Hartford Life and Annuity Insurance Company:
    

   
ONE GROUP INVESTMENT TRUST PORTFOLIO       PEGASUS VARIABLE FUND


1. Bond Portfolio                             1. Bond Fund
2. Large Cap Growth Portfolio                 2. Growth Fund
3. Diversified Mid Cap Portfolio              3. Mid-Cap Opportunity Fund
4. Mid Cap Value Portfolio                    4. Intrinsic Value Fund
5. Diversified Equity Portfolio               5. Growth and Value Fund
    

   
With the exception of the Large Cap Growth Portfolio, the Pegasus Variable Funds
are the surviving funds for accounting purposes. The Pegasus Variable Bond Fund,
the Pegasus Variable Mid-Cap Opportunity Fund, the Pegasus Variable Intrinsic
Value Fund, and the Pegasus Growth and Value Fund are referred to as the
"PREDECESSOR FUNDS" in this Statement of Additional Information. Individual
Predecessor Funds are identified in this Statement of Additional Information by
reference to the applicable One Group Investment Trust Portfolio.
    


                                       1

<PAGE>   52
       Much of the information in this Statement of Additional Information
expands upon subjects discussed in the Prospectus. You should not invest in the
Portfolios without first reading the Prospectus.

                                       2
<PAGE>   53


                       INVESTMENT OBJECTIVES AND POLICIES

The following policies supplement each Portfolio's investment objective and
policies as described in the Prospectus. Additional details about each
Portfolio's investment objectives and policies is contained in the Prospectus
under "Risk/Return Summaries" and "Principal Investment Strategies" and in
Appendix A.

ADDITIONAL INFORMATION ON PORTFOLIO INVESTMENTS

ASSET-BACKED SECURITIES

Asset-backed securities include securities secured by company receivables, home
equity loans, truck and auto loans, leases, credit card receivables.
Asset-Backed Securities also include other securities backed by other types of
receivables or other assets. These securities are generally pass-through
securities, which means that principal and interest payments on the underlying
securities (less servicing fees) are passed through to shareholders on a pro
rata basis.

Prepayment Risks. The issuers of asset-backed securities may be able to repay
principal in advance if interest rates fall. Also, the underlying assets (for
example, the underlying credit card debt) may be refinanced or paid off prior to
maturity during periods of declining interest rates If asset-backed securities
are pre-paid, a Portfolio may have to reinvest the proceeds from these
securities at a lower rate. In addition, potential market gains on a security
subject to prepayment risk may be more limited than securities that cannot be
prepaid. Under certain prepayment rate scenarios, a Portfolio may fail to
recover any premium paid on asset-backed securities.

BANK OBLIGATIONS

Bank obligations include bankers' acceptances, certificates of deposit, and
demand and time deposits. The Portfolios (other than the Government Bond
Portfolio) may invest in bank obligations.

BANKERS' ACCEPTANCES are negotiable drafts or bills of exchange typically drawn
by an importer or exporter to pay for specific merchandise. These drafts are
"accepted" by a bank, meaning, in effect, that the bank unconditionally agrees
to pay the face value of the instrument on maturity. To be eligible for purchase
by a Portfolio, a bankers' acceptance must be guaranteed by domestic and foreign
banks and savings and loan associations having, at the time of investment, total
assets in excess of $1 billion (as of the date of their most recently published
financial statements).

CERTIFICATES OF DEPOSIT are negotiable certificates issued against funds
deposited in a commercial bank or a savings and loan association for a definite
period of time and earning a specified return. To be eligible for investment, a
certificate of deposit must be issued by domestic and foreign branches of U.S.
commercial banks which are members of the Federal Reserve System or the deposits
of which are insured by the Federal Deposit Insurance Corporation, and in
certificates of deposit of domestic savings and loan associations the deposits
of which are insured by the Federal Deposit Insurance Corporation if, at the
time of purchase, such institutions have total assets in excess of $1 billion
(as of the date of their most recently published financial statements).
Certificates of deposit may also include those issued by foreign banks outside
the United States with total assets at the time of purchase in excess of the
equivalent of $1 billion.

The Portfolios may also invest in Eurodollar certificates of deposit. Eurodollar
certificates of deposit are U.S. dollar-denominated certificates of deposit
issued by branches of foreign and domestic banks located outside the United
States. The Portfolios may also invest in Yankee certificates of deposit. Yankee
certificates of deposits are certificates of deposit issued by a U.S. branch of
a foreign bank denominated in U.S. dollars and held in the United States. The
Portfolios may also invest in obligations (including banker's acceptances and
certificates of deposit) denominated in foreign currencies (see "Foreign
Investments").

DEMAND DEPOSITS are funds deposited in a commercial bank or a savings and loan
association which, without prior notice to the bank, may be withdrawn generally
by negotiable draft. Time and demand deposits will be maintained only at banks
or savings and loan associations from which a Portfolio could purchase
certificates of deposit. TIME DEPOSITS are interest-bearing non-negotiable
deposits at a bank or a savings and loan association that have a specific
maturity date. A time deposit earns a specific rate of interest over a definite
period of time. Time deposits cannot be traded on the 


                                       3
<PAGE>   54
secondary market. Time deposits that exceed seven days and include a withdrawal
penalty are considered to be illiquid.

COMMERCIAL PAPER

       Commercial paper consists of promissory notes issued by corporations.
Although these notes are generally unsecured, the Portfolios may also purchase
secured commercial paper. Except as noted below with respect to variable amount
master demand notes, issues of commercial paper normally have maturities of less
than nine months and fixed rates of return. The Portfolios only purchase
commercial paper that meet the following criteria.

       Bond Portfolio. The Bond Portfolio may purchase commercial paper
       consisting of issues rated at the time of purchase in the highest or
       second highest rating category by at least one Nationally Recognized
       Statistical Rating Organization ("NRSRO") (such as A-2 or better by
       Standard & Poor's Corporation ("S&P"), Aa or better by Moody's Investors
       Service, Inc. ("Moody's") or A2 or better by Fitch IBCA ("Fitch")) or if
       unrated, determined by Banc One Investment Advisors Corporation ("BANC
       ONE INVESTMENT ADVISORS") to be of comparable quality.

       Equity Portfolios. The Equity Portfolios may purchase commercial paper
       consisting of issues rated at the time of purchase in the highest or
       second highest rating category by at least one NRSRO (such as A-2 or
       better by S&P, P-2 or better by Moody's or F-2 or better by Fitch) or if
       unrated, determined by Banc One Investment Advisors to be of comparable
       quality.

COMMON STOCK

Common stock represents a share of ownership in a company and usually carries
voting rights and earns dividends. Unlike preferred stock, common stock
dividends are not fixed but are declared at the discretion of the issuer's board
of directors.

CONVERTIBLE SECURITIES

Convertible securities are similar to both fixed income and equity securities.
Convertible securities may be issued as bonds or preferred stock. Because of the
conversion feature, the market value of convertible securities tends to move
together with the market value of the underlying stock. As a result, the
Portfolios base selection of convertible securities, to a great extent, on the
potential for capital appreciation that may exist in the underlying stock. The
value of convertible securities is also affected by prevailing interest rates,
the credit quality of the issuer, and any call provisions.

DEMAND FEATURES

The Bond Portfolio and the Balanced Portfolio may invest in securities that are
subject to puts and standby commitments ("DEMAND FEATURES"). A demand feature
allows a Portfolio to buy securities at their principal amount (usually with
accrued interest) within a fixed period (usually seven days) following a demand
by the Portfolio. The demand feature may be issued by the issuer of the
underlying securities, a dealer in the securities or by another third party, and
may not be transferred separately from the underlying security. The underlying
securities subject to a put may be sold at any time at market rates. The
Portfolios expect that they will acquire puts only where the puts are available
without the payment of any direct or indirect consideration. However, if
advisable or necessary, a premium may be paid for put features. A premium paid
will reduce the yield otherwise payable on the underlying security.

Under a "STAND-BY COMMITMENT," a dealer agrees to purchase, at a Portfolio's
option, specified municipal securities at a specified price. A Portfolio will
acquire these commitments only to aid portfolio liquidity and does not intend to
exercise the demand feature for trading purposes. Stand-by commitments may also
be referred to as put options. Each Portfolio will generally limit its
investments in stand-by commitments to 25% of its total assets.

The Portfolios engage in put transactions to maintain flexibility and liquidity
to permit them to meet redemption requests and remain as fully invested as
possible.

                                       4
<PAGE>   55

FOREIGN INVESTMENTS

All of the Portfolios (except the Government Bond Portfolio and the Equity Index
Portfolio) may invest in certain obligations or securities of foreign issuers.
Possible investments include equity securities of foreign entities, obligations
of foreign branches of U.S. banks and of foreign banks, including, without
limitation, Eurodollar Certificates of Deposit, Eurodollar Time Deposits,
Eurodollar Banker's Acceptances, Canadian Time Deposits and Yankee Certificates
of Deposits, and investments in Canadian Commercial Paper, foreign securities
and Europaper.

The Equity Portfolios may purchase sponsored and unsponsored American Depository
Receipts ("ADRs"). Sponsored ADRs are listed on the New York Stock Exchange;
unsponsored ADRs are not. Therefore, there may be less information available
about the issuers of unsponsored ADRs than the issuers of sponsored ADRs.
Unsponsored ADRs are restricted securities.

RISK FACTORS OF FOREIGN INVESTMENTS

Political and Exchange Risks. Foreign investments involve investment risks that
differ in some respects from those related to investments in obligations of U.S.
domestic issuers. These risks include future adverse political and economic
developments, the possible imposition of withholding taxes on interest or other
income, possible seizure, nationalization or expropriation of foreign deposits,
the possible establishment of exchange controls or taxation at the source,
greater fluctuations in value due to changes in exchange rates, or the adoption
of other foreign governmental restrictions which might adversely affect the
payment of principal and interest on such obligations.

Higher Transaction Costs. Foreign investments may entail higher custodial fees
and sales commissions than domestic investments.

Accounting and Regulatory Differences. Foreign issuers of securities or
obligations are often subject to accounting treatment and engage in business
practices different from those respecting domestic issuers of similar securities
or obligations. Foreign branches of U.S. banks and foreign banks are not
regulated by U.S. banking authorities and may be subject to less stringent
reserve requirements than those applicable to domestic branches of U.S. banks.
In addition, foreign banks generally are not bound by the accounting, auditing,
and financial reporting standards comparable to those applicable to U.S. banks.

Currency Risk. On January 1, 1999, the European Economic and Monetary Union
introduced the "euro." The euro serves as a common currency for participating
European nations. All stocks issued by corporations located in those nations
will be denominated in euros. In addition, outstanding shares will be
redenominated in euros. All government bonds issued by participating nations
will be in euros , and outstanding government bonds will be redenominated in
euros. The introduction of the euro presents some uncertainties, such as the
adequacy of newly created accounting, clearing, settlement, and payment systems
for the new currency. These uncertainties could adversely affect the value of
the foreign securities held by the Portfolios.


LIMITATIONS ON THE USE OF FOREIGN INVESTMENTS. Investments in all types of
foreign obligations or securities will not exceed 25% of the net assets of a
Portfolio.


                                       5


<PAGE>   56
FUTURES AND OPTIONS TRADING

The Portfolios may enter into futures contracts, options, options on futures
contracts and stock index futures contracts and options thereon for the purposes
of remaining fully invested, reducing transaction costs, or managing interest
rate risk.

FUTURES CONTRACTS

Futures contracts provide for the future sale by one party and purchase by
another party of a specified amount of a specific security, class of securities,
or an index at a specified future time and at a specified price. A stock index
futures contract is a bilateral agreement where two parties agree to take or
make delivery of an amount of cash equal to a specified dollar amount times the
difference between the stock index value at the close of trading of the
contracts and the price at which the futures contract is originally struck.
Futures contracts which are standardized as to maturity date and underlying
financial instrument are traded on national futures exchanges. Futures exchanges
and trading are regulated under the Commodity Exchange Act by the Commodity
Futures Trading Commission ("CFTC"), a U.S. government agency.

Although the terms of most futures contracts call for actual delivery and
acceptance of the underlying securities, in most cases the contracts are closed
out before the settlement date without the making or taking of delivery. Closing
out an open futures position is done by taking an opposite position ("buying" a
contract which has previously been "sold," or "selling" a contract previously
"purchased") in an identical contract to terminate the position. The acquisition
of put and call options on futures contracts will, respectively, give a
Portfolio the right (but not the obligation), for a specified price, to sell or
to purchase the underlying futures contract, upon exercise of the option, at any
time during the option period. Brokerage commissions are incurred when a futures
contract is bought or sold.

When making futures trades, the Portfolios are required to make a good faith
margin deposit in cash or government securities with a broker or custodian to
initiate and maintain open positions in futures contracts. A margin deposit is
intended to assure completion of the contract (delivery or acceptance of the
underlying security) if it is not terminated prior to the specified delivery
date. Minimal initial margin requirements are established by the futures
exchange and may be changed. Brokers may establish deposit requirements which
are higher than the exchange minimums. Initial margin deposits on futures
contracts are customarily set at levels much lower than the prices at which the
underlying securities are purchased and sold, typically ranging upward from less
than 5% of the value of the contract being traded. 

After a futures contract position is opened, the value of the contract is
marked to market daily. If the futures contract price changes to the extent     
that the margin on deposit does not satisfy margin requirements, payment of
additional "variation" margin will be required. Conversely, change in the
contract value may reduce the required margin, resulting in a repayment of
excess margin to the contract holder. Variation margin payments are made to and
from the futures broker for as long as the contract remains open. The
Portfolios expect to earn interest income on their margin deposits.

Traders in futures contracts may be broadly classified as either "hedgers" or
"speculators." Hedgers use the futures markets primarily to offset unfavorable
changes in the value of securities otherwise held for investment purposes or
expected to be acquired by them. Speculators are less inclined to own the
securities underlying the futures contracts which they trade, and use futures
contracts with the expectation of realizing profits from fluctuations in the
prices of underlying securities. The Portfolios intend to enter into futures
contracts, options on futures contracts, index futures and options thereon that
are traded on an exchange regulated by the CFTC if, to the extent that these
futures and options are not for "bona fide hedging purposes" (as defined by the
CFTC), the aggregate initial margin and premiums on these positions (excluding
the amount by which options are in the money) do not exceed 5% of the
Portfolio's total assets at current value. A Portfolio, however, may invest more
than this amount for bona fide hedging purposes, and also may invest more than
that amount if it obtains authority to do so from the CFTC without rendering the
Portfolio a commodity pool operator.
                                       6
<PAGE>   57
A Portfolio may buy and sell futures contracts and related options to manage its
exposure to changing interest rates and security prices. When interest rates are
expected to rise or market values of portfolio securities are expected to fall,
a Portfolio can seek through the sale of futures contracts to offset a decline
in the value of its portfolio securities. When interest rates are expected to
fall or market values are expected to rise, a Portfolio, through the purchase of
these contracts, can attempt to secure better rates or prices for the Portfolio
than might later be available in the market when it makes anticipated purchases.

Although techniques other than the sale and purchase of futures contracts could
be used to control the Portfolios' exposure to market fluctuations, the use of
futures contracts may be a more effective means of managing this exposure. While
the Portfolios will incur commission expenses in both opening and closing out
futures positions, these costs may be lower than transaction costs that would be
incurred in the purchase and sale of the underlying securities.

A Portfolio's ability to effectively use futures trading depends on several
factors. First, price correlation between the futures contracts and their
underlying reference security or index may not be perfect. Second, it is
possible that a lack of liquidity for futures contracts could exist in the
secondary market, resulting in an inability to close a futures position prior to
its maturity date. Third, the purchase of a futures contract involves the risk
that a Portfolio could lose more than the original margin deposit required to
initiate a futures transaction.

LIMITATIONS ON THE USE OF FUTURES CONTRACTS

Except for bona fide hedging purposes, none of the Portfolios will enter into
futures contract transactions if immediately after the transaction, the sum of
its initial margin deposits and premiums on open contracts exceeds 5% of the
market value of the respective Portfolio's total assets. None of the Portfolios
will enter into futures contracts if the value of the futures contracts held
would exceed 25% of the applicable Portfolio's total assets.

The Portfolios restrict their futures contract trading as follows:

1.       The Portfolios will not engage in transactions in futures contracts for
         speculative purposes;

2.       The Portfolios will not market themselves to the public as commodity
         pools or otherwise as vehicles for trading in the commodities futures
         or commodity options markets;

3.       The Portfolios will disclose to all prospective Shareholders the
         purpose of and limitations on their commodity futures trading;

4.       The Portfolios will submit to the CFTC special calls for information.
         Accordingly, registration as a commodities pool operator with the CFTC
         is not required.

In addition to the margin restrictions discussed above, transactions in futures
contracts may involve the segregation of funds in a segregated account pursuant
to requirements imposed by the SEC. Under those requirements, where a Portfolio
has a long position in a futures contract, it may be required to establish a
segregated account (not with a futures commission merchant or broker) containing
cash or certain liquid assets equal to the purchase price of the contract (less
any margin on deposit). For a short position in futures or forward contracts
held by a Portfolio, those requirements may mandate the establishment of a
segregated account (not with a futures commission merchant or broker) with cash
or certain liquid assets that, when added to the amounts deposited as margin,
equal the market value of the instruments underlying the futures contracts (but
are not less than the price at which the short positions were established).
However, segregation of assets is not required if a Portfolio "covers" a long
position. For example, instead of segregating assets, a Portfolio, when holding
a long position in a futures contract, could purchase a put option on the same
futures contract with a strike price as high or higher than the price of the
contract held by the Portfolio. In addition, where a Portfolio takes short
positions, or engages in sales of call options, it need not segregate assets if
it "covers" these positions. For example, where a Portfolio holds a short
position in a futures contract, it may cover by owning the instruments
underlying the contract. The Portfolios may also cover such a position by
holding a call option permitting it to purchase the same futures contract at a
price no higher than the price at which the short position was established.
Where a Portfolio sells a call option on a futures contract, it may cover either
by entering into a long position in the same contract at a price no higher than
the strike price of the call option or by owning the instruments underlying the
futures contract. A Portfolio could also cover this position

                                       7
<PAGE>   58


by holding a separate call option permitting it to purchase the same futures
contract at a price no higher than the strike price of the call option sold by
the Portfolio. In certain circumstances, entry into a futures contract that
substantially eliminates risk of loss and the opportunity for gain in an
"appreciated financial position" will also accelerate gain to the Portfolios.

RISK FACTORS IN FUTURES TRANSACTIONS

LIQUIDITY. Positions in futures contracts may be closed out only on an exchange
which provides a secondary market for such futures. However, there can be no
assurance that a liquid secondary market will exist for any particular futures
contract at any specific time. Thus, it may not be possible to close a futures
position. In the event of adverse price movements, a Portfolio would continue to
be required to make daily cash payments to maintain the required margin. In
these situations, if a Portfolio has insufficient cash, it may have to sell
portfolio securities to meet daily margin requirements even though it may be
disadvantageous to do so. In addition, a Portfolio may be required to deliver
the instruments underlying futures contracts it holds. The inability to close
options and futures positions could also adversely impact the Portfolio's
ability to effectively hedge these positions. The Portfolios will minimize the
risk that they will be unable to close out a futures contract by only entering
into futures contracts which are traded on national futures exchanges and for
which there appears to be a liquid secondary market.

RISK OF LOSS. The risk of loss in trading futures contracts in some strategies
can be substantial, due both to the low margin deposits required, and the
extremely high degree of leverage involved in futures pricing. Because the
deposit requirements in the futures markets are less onerous than margin
requirements in the securities market, there may be increased participation by
speculators in the futures market which may also cause temporary price
distortions. A relatively small price movement in a futures contract may result
in immediate and substantial loss (as well as gain) to the investor. For
example, if at the time of purchase, 10% of the value of the futures contract is
deposited as margin, a subsequent 10% decrease in the value of the futures
contract would result in a total loss of the margin deposit, before any
deduction for the transaction costs, if the account were then closed out. Thus,
a purchase or sale of a futures contract may result in losses in excess of the
amount invested in the contract. However, because the futures strategies engaged
in by the Portfolios typically are for risk management purposes, Banc One
Investment Advisors does not believe that the Portfolios are subject to the
risks of loss frequently associated with futures transactions. Each Portfolio
would presumably have sustained comparable losses if, instead of the futures
contract, it had invested in the underlying financial instrument and sold it
after the decline.

CORRELATION RISK. A Portfolio's use of futures transactions involves the risk of
imperfect or no correlation where the securities underlying futures contracts
have different maturities than the portfolio securities being hedged. A
Portfolio could also lose money on futures contracts and also experience a
decline in value of its portfolio securities. There is also the risk of loss by
a Portfolio of margin deposits in the event of bankruptcy of a broker with whom
the Portfolio has an open position in a futures contract or related option.

PRICE FLUCTUATIONS. Most futures exchanges limit the amount of fluctuation
permitted in futures contract prices during a single trading day. The daily
limit establishes the maximum amount that the price of a futures contract may
vary either up or down from the previous day's settlement price at the end of a
trading session. Once the daily limit has been reached in a particular type of
contract, no trades may be made on that day at a price beyond that limit. The
daily limit governs only price movement during a particular trading day and
therefore does not limit potential losses, because the limit may prevent the
liquidation of unfavorable positions. Futures contract prices have occasionally
moved to the daily limit for several consecutive trading days with little or no
trading, thereby preventing prompt liquidation of futures positions and
subjecting some futures traders to substantial losses.

Some futures strategies, including selling futures, buying puts and writing
covered calls, may reduce a Portfolio's exposure to price fluctuations. Other
strategies, including buying futures, and buying calls, tend to increase market
exposure. Futures and options may be combined with each other in order to adjust
the risk and return characteristics of the overall portfolio. A Portfolio
expects to enter into these transactions to manage a return or spread on a
particular investment or portion of its assets, to protect against any increase
in the price of securities a Portfolio anticipates purchasing at a later date,
or for other risk management strategies.

                                       8


<PAGE>   59

OPTIONS CONTRACTS

The Portfolios may use options on securities or futures contracts as a hedging
device. An option gives the buyer of the option the right (but not the
obligation) to purchase a futures contract or security at a specified price
(also called the STRIKE price). A CALL OPTION gives the buyer the "right to
purchase" a security at a specified price (the exercise price) at any time until
a certain date (the expiration date). So long as the obligation of the writer of
a call option continues, the writer may be assigned an exercise notice by the
broker-dealer through whom the option was sold, requiring the writer to deliver
the underlying security against payment of the exercise price. This obligation
terminates upon the expiration of the call option, or such earlier time at which
the writer effects a closing purchase transaction by repurchasing an option
identical to that previously sold. To secure the writer's obligation to deliver
the underlying security in the case of a call option, subject to the rules of
the Options Clearing Corporation, a writer is required to deposit in escrow the
underlying security or other assets in accordance with these rules.

A PUT OPTION gives the buyer the right to sell the underlying futures contract
or security. The seller (or "writer") of a put option must purchase futures
contracts or securities at a strike price if the option is exercised. In the
case of a call option, the seller must sell the futures contract or security in
the underlying futures contract or security at the strike price if the option is
exercised.

A NAKED OPTION is an option written by a party who does not own the underlying
futures contract or security. A COVERED OPTION is an option written by a party
who does own the underlying position. The initial purchase (sale) of an option
is an "opening transaction." In order to close out an option position, the
Portfolio may enter into a "closing transaction". This involves the sale
(purchase) of an option contract on the same security with the same exercise
price and expiration date as the option contract originally opened.

A call option on a futures contract or security is said to be "in-the-money" if
the strike price is below current market levels and "out-of-the-money" if the
strike price is above current market levels. A put option is "in-the-money" if
the strike price is above current market levels, and "out-of-the-money" if the
strike price is below current market levels.

Options have limited life spans, usually tied to the delivery or settlement date
of the underlying futures contract or security. Some options, however, expire
significantly in advance of such dates. An option that is "out-of-the-money" and
not offset by the time it expires becomes worthless. On certain exchanges
"in-the-money" options are automatically exercised on their expiration date, but
on others unexercised options simply become worthless after their expiration
date. Options usually trade at a premium (referred to as the "time value" of the
option) above their intrinsic value (the difference between the market price for
the underlying futures contract or equity security and the strike price). As an
option nears its expiration date, the market value and the intrinsic value move
into parity as the time value diminishes.

Increased market volatility generally increases the value of options by
increasing the probability of favorable market swings, putting outstanding
options "in-the-money." Although purchasing options is a limited risk trading
approach, significant losses can be incurred by doing so.

WRITING (SELLING) COVERED CALLS

The Portfolios may write (sell) covered call options and purchase options to
close out options previously written by the Portfolio. The Portfolios' purpose
in writing covered call options is to generate additional premium income. This
premium income will serve to enhance a Portfolio's total return and will reduce
the effect of any price decline of the security involved in the option.
Generally, the Portfolios will write covered call options on securities which,
in the opinion of Banc One Investment Advisors are not expected to make any
major price moves in the near future but which, over the long term, are deemed
to be attractive investments for the Portfolio. The Portfolios will write only
covered call options. This means that a Portfolio will only write a call option
on a security which a Portfolio already owns.

Portfolio securities on which call options may be written will be purchased
solely on the basis of investment considerations consistent with each
Portfolio's investment objectives. The writing of 

                                       9
<PAGE>   60

covered call options is a conservative investment technique believed to involve
relatively little risk (in contrast to the writing of naked options, which a
Portfolio will not do), but capable of enhancing the Portfolio's total return.
When writing a covered call option, a Portfolio, in return for the premium,
gives up the opportunity for profit from a price increase in the underlying
security above the exercise price, but conversely retains the risk of loss
should the price of the security decline. Unlike one who owns securities not
subject to an option, a Portfolio has no control over when it may be required to
sell the underlying securities, since it may be assigned an exercise notice at
any time prior to the expiration of its obligation as a writer. Thus, the
security could be "called away" at a price substantially below the fair market
value of the security. If a call option which a Portfolio has written expires, a
Portfolio will realize a gain in the amount of the premium; however, such gain
may be offset by a decline in the market value of the underlying security during
the option period. If the call option is exercised, a Portfolio will realize a
gain or loss from the sale of the underlying security. The security covering the
call will be maintained in a segregated account of the Portfolio's custodian.
The Portfolios do not consider a security covered by a call to be "pledged" as
that term is used in each Portfolio's policy which limits the pledging or
mortgaging of its assets.

The premium received is the market value of an option. The premium each
Portfolio will receive from writing a call option will reflect, among other
things, the current market price of the underlying security, the relationship of
the exercise price to the market price, the historical price volatility of the
underlying security, and the length of the option period. Once the decision to
write a call option has been made, Banc One Investment Advisors, in determining
whether a particular call option should be written on a particular security,
will consider the reasonableness of the anticipated premium and the likelihood
that a liquid secondary market will exist for those options. The premium
received by a Portfolio for writing covered call options will be recorded as a
liability in the Portfolio's statement of assets and liabilities. This liability
will be adjusted daily to the option's current market value, which will be the
latest sale price at the time at which the net asset value per Share of the
Portfolio is computed (close of the New York Stock Exchange), or, in the absence
of such sale, the latest asked price. The liability will be extinguished upon
expiration of the option, the purchase of an identical option in the closing
transaction, or delivery of the underlying security upon the exercise of the
option.

Generally, a Portfolio, in order to avoid the exercise of an option sold by it,
will be able to cancel its obligation under the option by entering into a
closing purchase transaction, if available, unless selling (in the case of a
call option) or purchasing (in the case of a put option) the underlying
securities is determined to be in a Portfolio's best interest. A closing
purchase transaction consists of a Portfolio purchasing an option having the
same terms as the option sold by a Portfolio, and has the effect of cancelling a
Portfolio's position as a seller. The premium which a Portfolio will pay in
executing a closing purchase transaction may be higher (or lower) than the
premium received when the option was sold, depending in large part upon the
relative price of the underlying security at the time of each transaction. To
the extent options sold by a Portfolio are exercised and a Portfolio delivers
securities to the holder of a call option, a Portfolio's turnover rate will
increase, which would cause a Portfolio to incur additional brokerage expenses.

Closing transactions will be effected in order to realize a profit on an
outstanding call option, to prevent an underlying security from being called, or
to permit the sale of the underlying security. Furthermore, effecting a closing
transaction permits a Portfolio to write another call option on the underlying
security with either a different exercise price or expiration date or both. If a
Portfolio desires to sell a particular security from its portfolio on which it
has written a call options it will seek to effect a closing transaction prior
to, or concurrently with, the sale of the security. There is, of course, no
assurance that a Portfolio will be able to effect such closing transactions at a
favorable price. If a Portfolio cannot enter into a closing transaction, it may
be required to hold a security that it might otherwise have sold, in which case
it would continue to be at market risk on the security. This could result in
higher transaction costs. A Portfolio will pay transaction costs in connection
with the writing of options to close out previously written options. Such
transaction costs are normally higher than those applicable to purchases and
sales of portfolio securities.

Call options written by a Portfolio will normally have expiration dates of less
than nine months from the date written. The exercise price of the options may be
below, equal to, or above the current market values of the underlying securities
at the time the options are written. From time to time, a Portfolio may purchase
an underlying security for delivery in accordance with an exercise notice of a
call option assigned to it, rather than delivering the security from its
portfolio. In such cases, additional costs will be incurred.

                                       10
<PAGE>   61


A Portfolio will realize a profit or loss from a closing purchase transaction if
the cost of the transaction is less or more than the premium received from the
writing of the option. Because increases in the market price of a call option
will generally reflect increases in the market price of the underlying security,
any loss resulting from the repurchase of a call option is likely to be offset
in whole or in part by appreciation of the underlying security owned by the
Portfolio.

PURCHASING CALL OPTIONS

The Portfolios may purchase call options to hedge against an increase in the
price of securities that the Portfolio wants ultimately to buy. Such hedge
protection is provided during the life of the call option because the Portfolio,
as holder of the call option, is able to buy the underlying security at the
exercise price regardless of any increase in the underlying security's market
price. In order for a call option to be profitable, the market price of the
underlying security must rise sufficiently above the exercise price to cover the
premium and transaction costs. These costs will reduce any profit the Portfolio
might have realized had it bought the underlying security at the time it
purchased the call option. If paying a premium for a call option, together with
a price movement in the underlying security, is such that exercise of the option
would not be profitable to the Portfolio, loss of the premium may be offset by a
decrease in the acquisition cost of securities by the Portfolio.

PURCHASING PUT OPTIONS

The Portfolios may also purchase put options to protect their portfolio holdings
in an underlying security against a decline in market value. Hedge protection is
provided during the life of the put option since the Portfolio, as holder of the
put option, is able to sell the underlying security at the put exercise price
regardless of any decline in the underlying security's market price. For a put
option to be profitable, the market price of the underlying security must
decline sufficiently below the exercise price to cover the premium and
transaction costs. By using put options in this manner, the Portfolio will
reduce any profit it might otherwise have realized from appreciation of the
underlying security by the premium paid for the put option and by transaction
cost. However, any loss of premium may be offset by an increase in the value of
the Portfolio's securities.

SECURED PUTS

The Portfolios may write secured puts. For the secured put writer, substantial
depreciation in the value of the underlying security would result in the
security being "put to" the writer at the strike price of the option which may
be substantially greater than the fair market value of the security. If a
secured put option expires unexercised, the writer realizes a gain in the amount
of the premium.

STRADDLES AND SPREADS

The Portfolios also may engage in straddles and spreads. In a straddle
transaction, a Portfolio either buys a call and a put or sells a call and a put
on the same security. In a spread, the Portfolio purchases and sells a call or a
put. The Portfolio will sell a straddle when Banc One Investment Advisors
believes the price of a security will be stable. The Portfolio will receive a
premium on the sale of the put and the call. A spread permits the Portfolio to
make a hedged investment that the price of a security will increase or decline.

RISK FACTORS IN OPTIONS TRANSACTIONS

Risk of Loss. When it purchases an option, a Portfolio runs the risk of losing
its entire investment in the option in a relatively short period of time, unless
the Portfolio exercises the option or enters into a closing sale transaction
with respect to the option during the life of the option. If the price of the
underlying security does not rise (in the case of a call) or fall (in the case
of a put) to an extent sufficient to cover the option premium and transaction
costs, a Portfolio will lose part or all of its investment in the option. This
contrasts with an investment by a Portfolio in the underlying securities,
because the Portfolio may continue to hold its investment in those securities
notwithstanding the lack of a change in price of those securities. In addition,
there may be imperfect or no correlation between the changes in market value of
the securities held by the Portfolios and the prices of the options.

Judgement of Advisor. The successful use of the options strategies depends on
the ability of Banc One Investment Advisors to assess interest rate and market
movements correctly and to accurately 

                                       11
<PAGE>   62

calculate the fair price of the option. The effective use of options also
depends on a Portfolio's ability to terminate option positions at times when
Banc One Investment Advisors deems it desirable to do so. A Portfolio will take
an option position only if Banc One Investment Advisors believes there is a
liquid secondary market for the option, however, there is no assurance that a
Portfolio will be able to effect closing transactions at any particular time or
at an acceptable price.

Liquidity. If a secondary trading market in options were to become unavailable,
a Portfolio could no longer engage in closing transactions. Lack of investor
interest might adversely affect the liquidity of the market for particular
options or series of options. A marketplace may discontinue trading of a
particular option or options generally. In addition, a market could become
temporarily unavailable if unusual events, such as volume in excess of trading
or clearing capability, were to interrupt normal market operations. A
marketplace may at times find it necessary to impose restrictions on particular
types of options transactions, which may limit a Portfolio's ability to realize
its profits or limit its losses.

Market Restrictions. Disruptions in the markets for the securities underlying
options purchased or sold by a Portfolio could result in losses on the options.
If trading is interrupted in an underlying security, the trading of options on
that security is normally halted as well. As a result, a Portfolio as purchaser
or writer of an option will be unable to close out its positions until option
trading resumes, and it may be faced with losses if trading in the security
reopens at a substantially different price. In addition, the Options Clearing
Corporation ("OCC") or other options markets may impose exercise restrictions.
If a prohibition on exercise is imposed at the time when trading in the option
has also been halted, a Portfolio as purchaser or writer of an option will be
locked into its position until one of the two restrictions has been lifted. If a
prohibition on exercise remains in effect until an option owned by a Portfolio
has expired, the Portfolio could lose the entire value of its option.

Foreign Investment Risks. Special risks are presented by internationally-traded
options. Because of time differences between the United States and the various
foreign countries, and because different holidays are observed in different
countries, foreign option markets may be open for trading during hours or on
days when U.S. markets are closed. As a result, option premiums may not reflect
the current prices of the underlying interest in the United States.

LIMITATIONS ON THE USE OF OPTIONS.

Each Portfolio will limit the writing of put and call options to 25% of its net
assets. Some Portfolios may enter into over-the-counter option transactions.
There will be an active over-the-counter market for such options which will
establish their pricing and liquidity. The Portfolios will only enter into these
option transactions with broker/dealers who have a minimum net worth of
$20,000,000.

GOVERNMENT SECURITIES

The Portfolios invest in securities issued by agencies and instrumentalities of
the U.S. Government. Not all securities issued by U.S. Government agencies and
instrumentalities are backed by the full faith and credit of the U.S. Treasury.

- -        Obligations of certain agencies and instrumentalities of the U.S.
         government, such as the Government National Mortgage Association
         ("Ginnie Mae") and the Export-Import Bank, are supported by the full
         faith and credit of the U.S. Treasury;

- -        Others, such as the Federal National Mortgage Association ("Fannie
         Mae"), are supported by the right of the issuer to borrow from the
         Treasury;

- -        Others are supported by the discretionary authority of the U.S.
         government to purchase the agency's obligations; and

- -        Still others, such as the Federal Farm Credit Banks and the Federal
         Home Loan Mortgage Corporation ("Freddie Mac") are supported only by
         the credit of the instrumentality.

No assurance can be given that the U.S. government would provide financial
support to U.S. government-sponsored agencies or instrumentalities if it is not
obligated to do so by law. A Portfolio will invest in the obligations of these
agencies or instrumentalities only when Banc One Investment Advisors believes
that the credit risk is minimal. For information on mortgage-related securities
issued by certain agencies or instrumentalities of the U.S. government, see
"Investment 

                                       12
<PAGE>   63


Objectives and Policies--Mortgage-Related Securities" in this Statement of
Additional Information.

HIGH YIELD/ HIGH RISK SECURITIES/JUNK BONDS

The Mid Cap Opportunities Portfolio may invest in convertible securities that
are rated below investment grade by the primary rating agencies (BB or lower by
S&P and BA or lower by Moody's). Such convertible securities may be structured
as bonds or preferred stock that convert to common stock. Terms used to describe
these convertible securities include "high yield securities," "lower rated
bonds," "non-investment grade bonds," "below investment ". These securities are
considered to be high risk investments. The risks include the following:

         GREATER RISK OF LOSS. There is a greater risk that issuers of lower
         rated securities will default than issuers of higher rated securities.
         Issuers of lower rated securities may be less creditworthy, highly
         indebted, financially distressed, or bankrupt. These issuers are more
         vulnerable to real or perceived economic changes, political changes or
         adverse industry developments. If an issuer fails to pay principal or
         interest, the Portfolio would experience a decrease in income and a
         decline in the market value of their investments. The Portfolio may
         also incur additional expenses in seeking recovery from the issuer.

         SENSITIVITY TO INTEREST RATE AND ECONOMIC CHANGES. The income and
         market value of lower-rated securities may fluctuate more than higher
         rated securities. Although non-investment grade securities tend to be
         less sensitive to interest rate changes than investment grade
         securities, non-investment grade securities are more sensitive to
         short-term corporate, economic and market developments. During periods
         of economic uncertainty and change, the market price of the investments
         in lower-rated securities may be volatile.

         VALUATION DIFFICULTIES. It is often more difficult to value lower rated
         securities than higher rated securities. If an issuer's financial
         condition deteriorates, accurate financial and business information may
         be limited or unavailable. In addition, the lower rated investments may
         be thinly traded and there may be no established secondary market.
         Because of the lack of market pricing and current information for
         investments in lower rated securities, valuation of such investments is
         much more dependent on judgment than is the case with higher rated
         securities.

         LIQUIDITY. There may be no established secondary or public market for
         investments in lower rated securities. As a result, the Funds may be
         required to sell investments at substantial losses or retain them
         indefinitely even where an issuer's financial condition is
         deteriorating.

         HIGH YIELD BOND MARKET. Unlike investment grade securities (including
         securities which were investment grade when issued but have fallen
         below investment grade), the track record for bond default rates on new
         issues of non-investment grade bonds is relatively short. It may be
         that future default rates on new issues of non-investment grade
         securities will be more widespread and higher than in the past,
         especially if economic conditions deteriorate.

         CREDIT QUALITY. Credit quality of non-investment grade securities can
         change suddenly and unexpectedly, and even recently-issued credit
         ratings may not fully reflect the actual risks posed by a particular
         high-yield security.

         NEW LEGISLATION. Future legislation may have a possible negative impact
         on the market for high yield, high risk bonds. As an example, in the
         late 1980's, legislation required federally-insured savings and loan
         associations to divest their investments in high yield, high risk
         bonds. New legislation, if enacted, could have a material negative
         effect on a Portfolio's net asset value and investment practices.


INVESTMENT COMPANY SECURITIES

The Portfolios may invest up to 5% of their total assets in the securities of
any one investment company (another mutual fund), but may not own more than 3%
of the outstanding securities of any one investment company or invest more than
10% of their total assets in the securities of other

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<PAGE>   64

investment companies. Other investment company securities may include securities
of a money market fund of One Group(R), and securities of other investment
companies for which Banc One Investment Advisors serves as investment advisor or
administrator. Because other investment companies employ an investment advisor,
such investments by the Portfolios may cause Shareholders to bear duplicate
fees. Banc One Investment Advisors will waive its fee attributable to Portfolio
assets invested in funds advised by Banc One Investment Advisors. Banc One
Investment Advisors will also waive its fees attributable to the assets of any
Portfolio invested in any investment company if required by the laws of any
state in which shares of the Trust are sold.

LOAN PARTICIPATIONS AND ASSIGNMENTS

Some of the Portfolios may invest in fixed and floating rate loans ("Loans").
Loans are arranged through private negotiations between borrowers (which may be
corporate issuers or issuers of sovereign debt obligations) and one or more
financial institutions ("Lenders"). Generally, the Portfolios invest in Loans by
purchasing Loan Participations ("Participations") or assignments of all or a
portion of Loans ("Assignments") from third parties.

Typically, a Portfolio will have a contractual relationship only with the Lender
and not with the borrower when it purchases a Participation. In contrast, a
Portfolio has direct rights against the borrower on the Loan when it purchases
an Assignment. Because Assignments are arranged through private negotiations
between potential assignees and potential assignors, however, the rights and
obligations acquired by a Portfolio as the purchaser of an Assignment may differ
from, and be more limited than, those held by the assigning Lender.

Limitations on Investments in Loan Participations and Assignments. Loan
participants and assignments may be illiquid. As a result, a Portfolio will
invest no more than 15% of its net assets in these investments. If a government
entity is a borrower on a Loan, the Portfolio will consider the government to be
the issuer of a Participation or Assignment for purposes of the Portfolio's
fundamental investment policy that it will not invest 25% or more of its total
assets in securities of issuers conducting their principal business activities
in the same industry (i.e., foreign government).

Risk Factors of Loan Participations and Assignments. A Portfolio may have
difficulty disposing of Assignments and Participations because to do so it will
have to assign such securities to a third party. Because there is no liquid
market for such securities, the Portfolios anticipate that such securities could
be sold only to a limited number of institutional investors. The lack of a
liquid secondary market may have an adverse impact on the value of such
securities and a Portfolio's ability to dispose of particular Assignments or
Participations when necessary to meet a Portfolio's liquidity needs in response
to a specific economic event such as a deterioration in the creditworthiness of
the borrower. The lack of a liquid secondary market for Assignments and
Participations also may make it more difficult for a Portfolio to assign a value
to those securities when valuing the Portfolio's portfolio and calculating its
net asset value.

MORTGAGE-RELATED SECURITIES

Mortgage-Backed Securities (CMOs and REMICs). Mortgage-backed securities include
collateralized mortgage obligations ("CMOs") and Real Estate Mortgage Investment
Conduits ("REMICs"). (A REMIC is a CMO that qualifies for special tax treatment
under the Code and invests in certain mortgages principally secured by interests
in real property and other permitted investments).

Mortgage-backed securities represent pools of mortgage loans assembled for sale
to investors by:

- -    various governmental agencies such as Ginnie Mae;

- -    government-related organizations such as Fannie Mae and Freddie Mac;

- -    nongovernmental issuers such as commercial banks, savings and loan
     institutions, mortgage bankers, and private mortgage insurance companies.
     (Non-governmental mortgage securities cannot be treated as U.S. government
     securities for purposes of investment policies).

There are a number of important differences among the agencies and
instrumentalities of the U.S. government that issue mortgage-related securities
and among the securities that they issue.

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<PAGE>   65

       Ginnie Mae Securities. Mortgage-related securities issued by Ginnie Mae
       include Ginnie Mae Mortgage Pass-Through Certificates which are
       guaranteed as to the timely payment of principal and interest by Ginnie
       Mae. Ginnie Mae's guarantee is backed by the full faith and credit of the
       United States. Ginnie Mae is a wholly-owned U.S. government corporation
       within the Department of Housing and Urban Development. Ginnie Mae
       certificates also are supported by the authority of Ginnie Mae to borrow
       funds from the U.S. Treasury to make payments under its guarantee.

       Fannie Mae Securities. Mortgage-related securities issued by Fannie Mae
       include Fannie Mae Guaranteed Mortgage Pass-Through Certificates which
       are solely the obligations of Fannie Mae and are not backed by or
       entitled to the full faith and credit of the United States. Fannie Mae is
       a government-sponsored organization owned entirely by private
       stock-holders. Fannie Mae Certificates are guaranteed as to timely
       payment of the principal and interest by Fannie Mae.

       Freddie Mac Securities. Mortgage-related securities issued by Freddie Mac
       include Freddie Mac Mortgage Participation Certificates. Freddie Mac is a
       corporate instrumentality of the United States, created pursuant to an
       Act of Congress, which is owned entirely by Federal Home Loan Banks.
       Freddie Mac Certificates are not guaranteed by the United States or by
       any Federal Home Loan Banks and do not constitute a debt or obligation of
       the United States or of any Federal Home Loan Bank. Freddie Mac
       Certificates entitle the holder to timely payment of interest, which is
       guaranteed by Freddie Mac. Freddie Mac guarantees either ultimate
       collection or timely payment of all principal payments on the underlying
       mortgage loans. When Freddie Mac does not guarantee timely payment of
       principal, Freddie Mac may remit the amount due on account of its
       guarantee of ultimate payment of principal at any time after default on
       an underlying mortgage, but in no event later than one year after it
       becomes payable.

CMOs and guaranteed REMIC pass-through certificates ("REMIC Certificates")
issued by Fannie Mae, Freddie Mac, Ginnie Mae and private issuers are types of
multiple class pass-through securities. Investors may purchase beneficial
interests in REMICs, which are known as "regular" interests or "residual"
interests. The Bond Portfolio does not currently intend to purchase residual
interests in REMICs. The REMIC Certificates represent beneficial ownership
interests in a REMIC Trust, generally consisting of mortgage loans or Fannie
Mae, Freddie Mac or Ginnie Mae guaranteed mortgage pass-through certificates
(the "Mortgage Assets"). The obligations of Fannie Mae, Freddie Mac or Ginnie
Mae under their respective guaranty of the REMIC Certificates are obligations
solely of Fannie Mae, Freddie Mac or Ginnie Mae, respectively.

       GINNIE MAE REMIC CERTIFICATES. Ginnie Mae guarantees the full and timely
       payment of interest and principal on each class of securities (in
       accordance with the terms of those classes as specified in the related
       offering circular supplement). The Ginnie Mae guarantee is backed by the
       full faith and credit of the United States of America.

       FANNIE MAE REMIC CERTIFICATES. Fannie Mae REMIC Certificates are issued
       and guaranteed as to timely distribution of principal and interest by
       Fannie Mae. In addition, Fannie Mae will be obligated to distribute the
       principal balance of each class of REMIC Certificates in full, whether or
       not sufficient funds are available.

       FREDDIE MAC REMIC CERTIFICATES. Freddie Mac guarantees the timely payment
       of interest, and also guarantees the payment of principal as payments are
       required to be made on the underlying mortgage participation certificates
       ("PCs"). PCs represent undivided interests in specified residential
       mortgages or participation therein purchased by Freddie Mac and placed in
       a PC pool. With respect to principal payments on PCs, Freddie Mac
       generally guarantees ultimate collection of all principal of the related
       mortgage loans without offset or deduction. Freddie Mac also guarantees
       timely payment of principal on certain PCs referred to as "Gold PCs."

REMIC Certificates issued by Fannie Mae, Freddie Mac and Ginnie Mae are treated
as U.S. government securities for purposes of investment policies.

       CMOs and REMIC Certificates provide for the redistribution of cash flow
to multiple classes. Each class of CMOs or REMIC Certificates, often referred to
as a "tranche," is issued at a specific adjustable or fixed interest rate and
must be fully retired no later than its final distribution date. This

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<PAGE>   66

reallocation of interest and principal results in the redistribution of
prepayment risk across to different classes. This allows for the creation of
bonds with more or less risk than the underlying collateral exhibits. Principal
prepayments on the mortgage loans or the Mortgage Assets underlying the CMOs or
REMIC Certificates may cause some or all of the classes of CMOs or REMIC
Certificates to be retired substantially earlier than their final distribution
dates. Generally, interest is paid or accrues on all classes of CMOs or REMIC
Certificates on a monthly basis.

The principal of and interest on the Mortgage Assets may be allocated among the
several classes of CMOs or REMIC Certificates in various ways. In certain
structures (known as "sequential pay" CMOs or REMIC Certificates), payments of
principal, including any principal prepayments, on the Mortgage Assets generally
are applied to the classes of CMOs or REMIC Certificates in the order of their
respective final distribution dates. Thus, no payment of principal will be made
on any class of sequential pay CMOs or REMIC Certificates until all other
classes having an earlier final distribution date have been paid in full.

Additional structures of CMOs and REMIC Certificates include, among others,
"parallel pay" CMOs and REMIC Certificates. Parallel pay CMOs or REMIC
Certificates are those which are structured to apply principal payments and
prepayments of the Mortgage Assets to two or more classes concurrently on a
proportionate or disproportionate basis. These simultaneous payments are taken
into account in calculating the final distribution date of each class.

A wide variety of REMIC Certificates may be issued in the parallel pay or
sequential pay structures. These securities include accrual certificates (also
known as "Z-Bonds"), which only accrue interest at a specified rate until all
other certificates having an earlier final distribution date have been retired
and are converted thereafter to an interest-paying security, and planned
amortization class ("PAC") certificates, which are parallel pay REMIC
Certificates which generally require that specified amounts of principal be
applied on each payment date to one or more classes of REMIC Certificates (the
"PAC Certificates"), even though all other principal payments and prepayments of
the Mortgage Assets are then required to be applied to one or more other classes
of the certificates. The scheduled principal payments for the PAC Certificates
generally have the highest priority on each payment date after interest due has
been paid to all classes entitled to receive interest currently. Shortfalls, if
any, are added to the amount of principal payable on the next payment date. The
PAC Certificate payment schedule is taken into account in calculating the final
distribution date of each class of PAC. In order to create PAC tranches, one or
more tranches generally must be created that absorb most of the volatility in
the underlying Mortgage Assets. These tranches tend to have market prices and
yields that are much more volatile than the PAC classes. The Z-Bonds in which
the Portfolios may invest may bear the same non-credit- related risks as do
other types of Z-Bonds. Z-Bonds in which the Portfolio may invest will not
include residual interest.

Mortgage Dollar Rolls. Some of the Portfolios may enter into Mortgage Dollar
Rolls. In a Mortgage Dollar Role transaction, the Portfolios sell securities for
delivery in the current month and simultaneously contract with the same
counterparty to repurchase similar (same type, coupon and maturity) but not
identical securities on a specified future date. When a Portfolio enters into
mortgage dollar rolls, the Portfolio will hold and maintain a segregated account
until the settlement date. The segregated account will contain cash or liquid,
high grade debt securities in an amount equal to the purchase price that the
Portfolio is required to pay. The Portfolios benefit from a mortgage dollar roll
to the extent of:

- -    the difference between the price received for the securities sold and the
     lower price for the future purchase (often referred to as the "drop"); and

- -    fee income plus the interest earned on the cash proceeds of the securities
     sold until the settlement date of the future purchase.

Unless such benefits exceed the amount of income, capital appreciation or gains
on the securities sold as part of the mortgage dollar roll, the investment
performance of the Portfolios will be less than what the performance would have
been without the use of mortgage dollar rolls. The benefits of mortgage dollar
rolls may depend upon Banc One Investment Advisors' ability to predict mortgage
prepayments and interest rates. There is no assurance that mortgage dollar rolls
can be successfully employed. The Portfolios currently intend to enter into
mortgage dollar rolls that are accounted for as a financing transaction. For
purposes of diversification and investment limitations, mortgage dollar rolls
are considered to be mortgage-backed securities.

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<PAGE>   67

STRIPPED MORTGAGE BACKED SECURITIES. Stripped Mortgage Backed Securities
("SMBS") are derivative multi-class mortgage securities. SMBS are usually
structured with two classes that receive different proportions of the interest
and principal distributions from a pool of mortgage assets. A common type of
SMBS will have one class receiving all of the interest from the mortgage assets
("IOs"), while the other class will receive all of the principal ("POs").
Mortgage IOs receive monthly interest payments based upon a notional amount that
declines over time as a result of the normal monthly amortization and
unscheduled prepayments of principal on the associated mortgage POs.


In addition to the risks applicable to Mortgage-Related Securities in general,
SMBS are subject to the following additional risks:

       PREPAYMENT/INTEREST RATE SENSITIVITY. SMBS are extremely sensitive to
       changes in prepayments and interest rates. Even though these securities
       have been guaranteed by an agency or instrumentality of the U.S.
       government, under certain interest rate or prepayment rate scenarios, the
       Portfolios may lose money on investments in SMBS.

       INTEREST ONLY SMBS. Changes in prepayment rates can cause the return on
       investment in IOs to be highly volatile. Under extremely high prepayment
       conditions, IOs can incur significant losses.

       PRINCIPAL ONLY SMBS. POs are bought at a discount to the ultimate
       principal repayment value. The rate of return on a PO will vary with
       prepayments, rising as prepayment increase and falling as prepayments
       decrease. Generally, the market value of these securities is unusually
       volatile in response to changes in interest rates.

       YIELD CHARACTERISTICS. Although SMBS may yield more than other
       mortgage-backed securities, their cash flow patterns are more volatile
       and there is a greater risk that any premium paid will not be fully
       recouped. Banc One Investment Advisors will seek to manage these risks
       (and potential benefits) by investing in a variety of such securities and
       by using certain analytical and hedging techniques.


A Portfolio may only invest in SMBS issued or guaranteed by the U.S. government,
its agencies or instrumentalities. Although the market for SMBS is increasingly
liquid, certain SMBS may not be readily marketable and will be considered
illiquid for purposes of the Portfolios' limitations on investments in illiquid
securities.

         ADJUSTABLE RATE MORTGAGE LOANS. The Bond Portfolios and the Balanced
Portfolio may invest in adjustable rate mortgage loans ("ARMS"). ARMs eligible
for inclusion in a mortgage pool will generally provide for a fixed initial
mortgage interest rate for a specified period of time. Thereafter, the interest
rates (the "Mortgage Interest Rates") may be subject to periodic adjustment
based on changes in the applicable index rate (the "Index Rate"). The adjusted
rate would be equal to the Index Rate plus a gross margin, which is a fixed
percentage spread over the Index Rate established for each ARM at the time of
its origination.

Adjustable interest rates can cause payment increases that some borrowers may
find difficult to make. However, certain ARMs may provide that the Mortgage
Interest Rate may not be adjusted to a rate above a maximum rate or below a
minimum rate. Certain ARMs may also be subject to limitations on the maximum
amount by which the Mortgage Interest Rate may adjust for any single adjustment
period (the "Maximum Adjustment"). Other ARMs ("Negatively Amortizing ARMs") may
provide for limitations on changes in the monthly payment on such ARMs.
Limitations on monthly payments can result in monthly payments which are greater
or less than the amount necessary to amortize a Negatively Amortizing ARM by its
maturity at the Mortgage Interest Rate in effect in any particular month. In the
event that a monthly payment is not sufficient to pay the interest accruing on a
Negatively Amortizing ARM, any excess interest is added to the principal balance
of the loan, causing negative amortization and will be repaid through future
monthly payments. It may take borrowers under Negatively Amortizing ARMs longer
periods of time to achieve equity and may increase the likelihood of default by
such borrowers. In the event that a monthly payment exceeds the sum of the
interest accrued at the applicable Mortgage Interest Rate and the principal
payment which would have been necessary to amortize the outstanding principal
balance over the remaining term of the loan, the excess (or "accelerated
amortization") further reduces the principal balance of the ARM. Negatively
Amortizing ARMs do not provide for the 


                                       17
<PAGE>   68
extension of their original maturity to accommodate changes in their Mortgage
Interest Rate. As a result, unless there is a periodic recalculation of the
payment amount (which there generally is), the final payment may be
substantially larger than the other payments. These limitations on periodic
increases in interest rates and on changes in monthly payment protect borrowers
from unlimited interest rate and payment increases.

Certain adjustable rate mortgage loans may provide for periodic adjustments of
scheduled payments in order to amortize fully the mortgage loan by its stated
maturity. Other adjustable rate mortgage loans may permit their stated maturity
to be extended or shortened in accordance with the portion of each payment that
is applied to interest as affected by the periodic interest rate adjustments.

There are two main categories of indices which provide the basis for rate
adjustments on ARMs: those based on U.S. Treasury securities and those derived
from a calculated measure such as a cost of funds index or a moving average of
mortgage rates. Commonly utilized indices include the one-year, three-year and
five-year constant maturity Treasury bill rates, the three-month Treasury bill
rate, the 180-day Treasury bill rate, rates on longer-term Treasury securities,
the 11th District Federal Home Loan Bank Cost of funds, the National Median Cost
of funds, the one-month, three-month, six-month or one-year London Interbank
Offered Rate ("LIBOR"), the prime rate of a specific bank, or commercial paper
rates. Some indices, such as the one-year constant maturity Treasury rate,
closely mirror changes in market interest rate levels. Others, such as the 11th
District Federal Home Loan Bank Cost of funds index, tend to lag behind changes
in market rate levels and tend to be somewhat less volatile. The degree of
volatility in the market value of the Portfolio's portfolio and therefore in the
net asset value of the Portfolio's shares will be a function of the length of
the interest rate reset periods and the degree of volatility in the applicable
indices.

In general, changes in both prepayment rates and interest rates will change the
yield on Mortgage-Backed Securities. The rate of principal prepayments with
respect to ARMs has fluctuated in recent years. As is the case with fixed
mortgage loans, ARMs may be subject to a greater rate of principal prepayments
in a declining interest rate environment. For example, if prevailing interest
rates fall significantly, ARMs could be subject to higher prepayment rates than
if prevailing interest rates remain constant because the availability of fixed
rate mortgage loans at competitive interest rates may encourage mortgagors to
refinance their ARMs to "lock-in" a lower fixed interest rate. Conversely, if
prevailing interest rates rise significantly, ARMs may prepay at lower rates
than if prevailing rates remain at or below those in effect at the time such
ARMs were originated. As with fixed rate mortgages, there can be no certainty as
to the rate of prepayments on the ARMs in either stable or changing interest
rate environments. In addition, there can be no certainty as to whether
increases in the principal balances of the ARMs due to the addition of deferred
interest may result in a default rate higher than that on ARMs that do not
provide for negative amortization. Other factors affecting prepayment of ARMs
include changes in mortgagors' housing needs, job transfers, unemployment,
mortgagors' net equity in the mortgage properties and servicing decisions.

RISKS FACTORS OF MORTGAGE-RELATED SECURITIES.

Guarantor Risk. There can be no assurance that the U.S. government would provide
financial support to Fannie Mae, Freddie Mac or Ginnie Mae if necessary in the
future. Although certain mortgage-related securities are guaranteed by a third
party or otherwise similarly secured, the market value of the security, which
may fluctuate, is not so secured.

Interest Rate Sensitivity. If a Portfolio purchases a mortgage-related security
at a premium, that portion may be lost if there is a decline in the market value
of the security whether resulting from changes in interest rates or prepayments
in the underlying mortgage collateral. As with other interest-bearing
securities, the prices of such securities are inversely affected by changes in
interest rates. However, though the value of a mortgage-related security may
decline when interest rates rise, the converse is not necessarily true because
in periods of declining interest rates the mortgages underlying the securities
are prone to prepayment. For this and other reasons, a mortgage-related
security's stated maturity may be shortened by unscheduled prepayments on the
underlying mortgages and, therefore, it is not possible to predict accurately
the security's return to the Portfolios. In addition, regular payments received
on mortgage-related securities include both interest and principal. No assurance
can be given as to the return the Portfolios of the Trust will receive when
these amounts are reinvested.

                                       18


<PAGE>   69
Market Value. The market value of the Portfolio's adjustable rate
Mortgage-Backed Securities may be adversely affected if interest rates rise
faster than the rates of interest payable on these securities or by the
adjustable rate mortgage loans underlying the securities. Furthermore,
adjustable rate Mortgage-Backed Securities or the mortgage loans underlying
these securities may contain provisions limiting the amount by which rates may
be adjusted upward and downward and may limit the amount by which monthly
payments may be increased or decreased to accommodate upward and downward
adjustments in interest rates.

Prepayments. Adjustable rate Mortgage-Backed Securities have less potential for
capital appreciation than fixed rate Mortgage-Backed Securities because their
coupon rates will decline in response to market interest rate declines. The
market value of fixed rate Mortgage-Backed Securities may be adversely affected
by increases in interest rates and, because of the risk of unscheduled principal
prepayments, may benefit less than other fixed rate securities of similar
maturity from declining interest rates. Finally, to the extent Mortgage-Backed
Securities are purchased at a premium, mortgage foreclosures and unscheduled
principal prepayments may result in some loss of the Portfolio's principal
investment to the extent of the premium paid. On the other hand, if these
securities are purchased at a discount, both a scheduled payment of principal
and an unscheduled prepayment of principal will increase current and total
returns and will accelerate the recognition of income.

Yield Characteristics. The yield characteristics of Mortgage-Backed Securities
differ from those of traditional fixed income securities. The major differences
typically include more frequent interest and principal payments, usually
monthly, and the possibility that prepayments of principal may be made at any
time. Prepayment rates are influenced by changes in current interest rates and a
variety of economic, geographic, social and other factors and cannot be
predicted with certainty. As with fixed rate mortgage loans, adjustable rate
mortgage loans may be subject to a greater prepayment rate in a declining
interest rate environment. The yields to maturity of the Mortgage-Backed
Securities in which the Portfolios invest will be affected by the actual rate of
payment (including prepayments) of principal of the underlying mortgage loans.
The mortgage loans underlying these securities generally may be prepaid at any
time without penalty. In a fluctuating interest rate environment, a predominant
factor affecting the prepayment rate on a pool of mortgage loans is the
difference between the interest rates on the mortgage loans and prevailing
mortgage loan interest rates (giving consideration to the cost of any
refinancing). In general, if mortgage loan interest rates fall sufficiently
below the interest rates on fixed rate mortgage loans underlying mortgage
pass-through securities, the rate of prepayment would be expected to increase.
Conversely, if mortgage loan interest rates rise above the interest rates on the
fixed rate mortgage loans underlying the mortgage pass-through securities, the
rate of prepayment may be expected to decrease.

MUNICIPAL SECURITIES

Municipal Securities are issued to obtain funds for various public purposes,
including the construction of a wide range of public facilities such as:

       1. bridges,
       2. highways,
       3. roads,
       4. schools,
       5. water and sewer works, and
       6. other utilities.

Other public purposes for which Municipal Securities may be issued include:

      1.  refunding outstanding obligations,
      2.  obtaining funds for general operating expenses and
      3.  obtaining funds to lend to other public institutions and facilities.

In addition, certain debt obligations known as "private activity bonds" may be
issued by or on behalf of municipalities and public authorities to obtain funds
to provide
      1.  water, sewage and solid waste facilities,
      2.  qualified residential rental projects,
      3.  certain local electric, gas and other heating or cooling facilities,
      4.  qualified hazardous waste facilities,
      5.  high-speed intercity rail facilities,
      6. governmentally-owned airports, docks and wharves and mass
         transportation facilities,

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<PAGE>   70
      7.  qualified mortgages,
      8.  student loan and redevelopment bonds;
      9.  and bonds used for certain organizations exempt from Federal income 
          taxation.

Certain debt obligations known as "industrial development bonds" under prior
Federal tax law may have been issued by or on behalf of public authorities to
obtain funds to provide:

     1. privately operated housing facilities,
     2. sports facilities,
     3. industrial parks,
     4. convention or trade show facilities,
     5. airport, mass transit, port or parking facilities,
     6. air or water pollution control facilities,
     7. sewage or solid waste disposal facilities, and
     8. facilities for water supply.

Other private activity bonds and industrial development bonds issued to fund the
construction, improvement, equipment or repair of privately-operated industrial,
distribution, research, or commercial facilities may also be Municipal
Securities, but the size of such issues is limited under current and prior
Federal tax law. The aggregate amount of most private activity bonds and
industrial development bonds is limited (except in the case of certain types of
facilities) under federal tax law by an annual "volume cap." The volume cap
limits the annual aggregate principal amount of such obligations issued by or on
behalf of all governmental instrumentalities in the state.

The two principal classifications of Municipal Securities consist of "general
obligation" and "limited" (or revenue) issues. General obligation bonds are
obligations involving the credit of an issuer possessing taxing power and are
payable from the issuer's general unrestricted revenues and not from any
particular fund or source. The characteristics and method of enforcement of
general obligation bonds vary according to the law applicable to the particular
issuer, and payment may be dependent upon appropriation by the issuer's
legislative body. Limited obligation bonds are payable only from the revenues
derived from a particular facility or class of facilities or, in some cases,
from the proceeds of a special excise or other specific revenue source. Private
activity bonds and industrial development bonds generally are revenue bonds and
thus not payable from the unrestricted revenues of the issuer. The credit and
quality of these bonds is generally related to the credit of the bank selected
to provide the letter of credit underlying the bonds. Payment of principal of
and interest on industrial development revenue bonds is the responsibility of
the corporate user (and any guarantor).

The Portfolios may also acquire "moral obligation" issues, which are normally
issued by special purpose authorities, and in other tax-exempt investments
including pollution control bonds and tax-exempt commercial paper. Each
Portfolio that may purchase municipal securities may purchase:

      1.  Short-term tax-exempt General Obligations Notes,
      2.  Tax Anticipation Notes,
      3.  Bond Anticipation Notes,
      4.  Revenue Anticipation Notes,
      5.  Project Notes, and
      6.  Other forms of short-term tax-exempt loans.

Such notes are issued with a short-term maturity in anticipation of the receipt
of tax funds, the proceeds of bond placements, or other revenues. Project Notes
are issued by a state or local housing agency and are sold by the Department of
Housing and Urban Development. While the issuing agency has the primary
obligation with respect to its Project Notes, they are also secured by the full
faith and credit of the United States through agreements with the issuing
authority which provide that, if required, the federal government will lend the
issuer an amount equal to the principal of and interest on the Project Notes.

There are, of course, variations in the quality of Municipal Securities, both
within a particular classification and between classifications. Also, the yields
on Municipal Securities depend upon a variety of factors, including:


 -  general money market conditions,

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<PAGE>   71

- -       the financial condition of the issuer,

- -       general conditions of the municipal bond market,

- -       the size of a particular offering,

- -       the maturity of the obligations, and

- -       the rating of the issue.

The ratings of Moody's and S&P represent their opinions as to the quality of
Municipal Securities. However,ratings are general and are not absolute standards
of quality. Municipal Securities with the same maturity, interest rate and
rating may have different yields while Municipal Securities of the same maturity
and interest rate with different ratings may have the same yield. Subsequent to
its purchase by a Portfolio, an issue of Municipal Securities may cease to be
rated or its rating may be reduced below the minimum rating required for
purchase by the Portfolio. Banc One Investment Advisors or the applicable
Sub-Advisor will consider such an event in determining whether the Portfolio
should continue to hold the obligations.

Municipal securities may include obligations of municipal housing authorities
and single-family mortgage revenue bonds. Weaknesses in Federal housing subsidy
programs and their administration may result in a decrease of subsidies
available for payment of principal and interest on housing authority bonds.
Economic developments, including fluctuations in interest rates and increasing
construction and operating costs, may also adversely impact revenues of housing
authorities. In the case of some housing authorities, inability to obtain
additional financing could also reduce revenues available to pay existing
obligations. Single-family mortgage revenue bonds are subject to extraordinary
mandatory redemption at par in whole or in part from the proceeds derived from
prepayments of underlying mortgage loans and also from the unused proceeds of
the issue within a stated period which may be within a year from the date of
issue.

Municipal leases are obligations issued by state and local governments or
authorities to finance the acquisition of equipment and facilities. Municipal
Leases may be considered to be illiquid. They may take the form of a lease, an
installment purchase contract, a conditional sales contract, or a participation
interest in any of the above. The Board of Trustees is responsible for
determining the credit quality of unrated municipal leases, on an ongoing basis,
including an assessment of the likelihood that the lease will not be canceled.

RISK FACTORS IN MUNICIPAL SECURITIES

       Tax Risk. The Code imposes certain continuing requirements on issuers of
       tax-exempt bonds regarding the use, expenditure and investment of bond
       proceeds and the payment of rebates to the United States of America.
       Failure by the issuer to comply after the issuance of tax-exempt bonds
       with certain of these requirements could cause interest on the bonds to
       become includable in gross income retroactive to the date of issuance.

       Housing Authority Tax Risk. The exclusion from gross income for Federal
       income tax purposes for certain housing authority bonds depends on
       qualification under relevant provisions of the Code and on other
       provisions of Federal law. These provisions of Federal law contain
       requirements relating to the cost and location of the residences financed
       with the proceeds of the single-family mortgage bonds and the income
       levels of tenants of the rental projects financed with the proceeds of
       the multi-family housing bonds. Typically, the issuers of the bonds, and
       other parties, including the originators and servicers of the
       single-family mortgages and the owners of the rental projects financed
       with the multi-family housing bonds, covenant to meet these requirements.
       However, there is no assurance that the requirements will be met. If such
       requirements are not met:

     -    the interest on the bonds may become taxable, possibly retroactively
          from the date of issuance;

     -    the value of the bonds may be reduced;

                                       21

<PAGE>   72
     -    you and other Shareholders may be subject to unanticipated tax
          liabilities;

     -    a Portfolio may be required to sell the bonds at the reduced value;

     -    it may be an event of default under the applicable mortgage;

     -    the holder may be permitted to accelerate payment of the bond; and

     -    the issuer may be required to redeem the bond.

       In addition, if the mortgage securing the bonds is insured by the Federal
       Housing Administration ("FHA"), the consent of the FHA may be required
       before insurance proceeds would become payable.

       Information Risk. Information about the financial condition of issuers of
       Municipal Securities may be less available than about corporations having
       a class of securities registered under the Securities Exchange Act of
       1934.

       State and Federal Laws. An issuer's obligations under its Municipal
       Securities are subject to the provisions of bankruptcy, insolvency, and
       other laws affecting the rights and remedies of creditors. These laws may
       extend the time for payment of principal or interest, or restrict the
       Portfolio's ability to collect payments due on Municipal Securities.

       Litigation and Current Developments. The power or ability of an issuer to
       meet its obligations for the payment of interest on and principal of its
       Municipal Securities may be materially adversely affected by litigation
       or other conditions. Such litigation or conditions may from time to time
       have the effect of introducing uncertainties in the market for tax-exempt
       obligations or certain segments thereof, or may materially affect the
       credit risk with respect to particular bonds or notes. Adverse economic,
       business, legal or political developments might affect all or a
       substantial portion of a Portfolio's Municipal Securities in the same
       manner.

       New Legislation. From time to time, proposals have been introduced before
       Congress that would restrict or eliminate the Federal income tax
       exemption for interest on tax exempt bonds, and similar proposals may be
       introduced in the future. The Supreme Court has held that Congress has
       the constitutional authority to enact such legislation. It is not
       possible to determine what effect the adoption of these proposals could
       have on (i) the availability of Municipal Securities for investment by
       the Portfolios, and (ii) the value of the investment portfolios of the
       Portfolios.

LIMITATIONS ON THE USE OF MUNICIPAL SECURITIES

The Bond Portfolio may invest in Municipal Securities either by purchasing them
directly or by purchasing certificates of accrual or similar instruments
evidencing direct ownership of interest payments or principal payments, or both,
on Municipal Securities, provided that, in the opinion of counsel to the initial
seller of each certificate or instrument, any discount accruing on the
certificate or instrument that is purchased at a yield not greater than the
coupon rate of interest on the related Municipal Securities will to the same
extent as interest on such Municipal Securities be exempt from Federal income
tax and state income tax (where applicable) and not treated as a preference item
for individuals for purposes of the Federal alternative minimum tax.

The Portfolio may also invest in Municipal Securities by purchasing from banks
participation interests in all or part of specific holdings of Municipal
Securities. Such participation may be backed in whole or in part by an
irrevocable letter of credit or guarantee of the selling bank. The selling bank
may receive a fee from the Portfolio in connection with the arrangement. The
Portfolio will not purchase participation interests unless it receives an
opinion of counsel or a ruling of the Internal Revenue Service that interest
earned by it on Municipal Securities in which it holds such participation
interest is exempt from Federal income tax and state income tax (where
applicable) and not treated as a preference item for individuals for purposes of
the Federal alternative minimum tax.


                                       22
<PAGE>   73

NEW FINANCIAL PRODUCTS

New options and futures contracts and other financial products, and various
combinations thereof, continue to be developed. These various products may be
used to adjust the risk and return characteristics of each Portfolio's
investments. These various products may increase or decrease exposure to
security prices, interest rates, commodity prices, or other factors that affect
security values, regardless of the issuer's credit risk. If market conditions do
not perform as expected, the performance of each Portfolio would be less
favorable than it would have been if these products were not used. In addition,
losses may occur if counterparties involved in transactions do not perform as
promised. These products may expose the Portfolio to potentially greater return
as well as potentially greater risk of loss than more traditional fixed income
investments.

 PERCS*

The Equity Portfolios may invest in Preferred Equity Redemption Cumulative Stock
("PERCS"). PERCS are preferred stock which convert to common stock after a
specified period of time, usually three years, and are considered the equivalent
of equity by the ratings agencies. PERCs are mandatorily convertible into common
stock. However, PERCS may be called at any time at an initial call price that
reflects a substantial premium to the stock's issue price. PERCS offer a higher
dividend than that available on the common stock, but in exchange the investors
agree to the company placing a cap on the potential price appreciation. The call
price declines daily in an amount that reflects the incremental dividend that
holders enjoy. PERCS are listed on an exchange where the common stock is listed.

*PERCS is a registered trademark of Morgan Stanley, which does not sponsor and
is in no way affiliated with The One Group Investment Trust.

PREFERRED STOCK

Preferred stock is a class of stock that generally pays dividends at a specified
rate and has preference over common stock in the payment of dividends and
liquidation. Preferred stock generally does not carry voting rights. As with all
equity securities, the price of preferred stock fluctuates based on changes in a
company's financial condition and on overall market and economic conditions.

 REAL ESTATE INVESTMENT TRUSTS ("REITS")

The Portfolios may invest in equity interests or debt obligations issued by
REITs. REITs are pooled investment vehicles which invest primarily in income
producing real estate or real estate related loans or interest. REITs are
generally classified as equity REITs, mortgage REITs or a combination of equity
and mortgage REITs. Equity REITs invest the majority of their assets directly in
real property and derive income primarily from the collection of rents. Equity
REITs can also realize capital gains by selling property that has appreciated in
value. Mortgage REITs invest the majority of their assets in real estate
mortgages and derive income from the collection of interest payments. Similar to
investment companies, REITs are not taxed on income distributed to shareholders
provided they comply with several requirements of the Code. A Portfolio will
indirectly bear its proportionate share of expenses incurred by REITs in which a
Portfolio invests in addition to the expenses incurred directly by a Portfolio.

Investing in REITs involves certain unique risks in addition to those risks
associated with investing in the real estate industry in general. Equity REITs
may be affected by changes in the value of the underlying property owned by the
REITs, while mortgage REITs may be affected by the quality of any credit
extended. REITs are dependent upon management skills, are not diversified, are
subject to heavy cash flow dependency, default by borrowers and
self-liquidation. Other possible risks include failing to qualify for tax free
pass-through of income under the Code and failing to maintain their exemption
from registration under the Act.

REITs (especially mortgage REITs) are also subject to interest rate risks. When
interest rates decline, the value of a REIT's investment in fixed rate
obligations can be expected to rise. Conversely, when interest rates rise, the
value of a REIT's investment in fixed rate obligations can be expected to
decline. In contrast, as interest rates on adjustable rate mortgage loans are
reset periodically, yields on a REIT's investment in such loans will gradually
align themselves to fluctuate

                                       23
<PAGE>   74

less dramatically in response to interest rate fluctuations than would
investments in fixed rate obligations.

Investment in REITs involves risks similar to those associated with investing in
small capitalization companies. These risks include:

     -    limited financial resources

     -    infrequent or limited trading

     -    more abrupt or erratic price movements than larger company securities


Historically, small capitalization stocks, such as REITs, have been more
volatile in price than the larger capitalization stocks included in the S&P
Index of 500 Common Stocks.

REPURCHASE AGREEMENTS

Under the terms of a repurchase agreement, a Portfolio would acquire securities
from a seller, subject to the seller's agreement to repurchase such securities
at a mutually agreed-upon date and price. The repurchase price would generally
equal the price paid by the Portfolio plus interest negotiated on the basis of
current short-term rates, which may be more or less than the rate on the
underlying portfolio securities. The seller under a repurchase agreement will be
required to maintain the value of collateral held pursuant to the agreement at
not less than the repurchase price (including accrued interest).

If the seller defaults on its repurchase obligation or becomes insolvent, the
Portfolio holding such obligation would suffer a loss to the extent that the
proceeds from a sale of the underlying portfolio securities were less than the
repurchase price under the agreement, or to the extent that the disposition of
such securities by the Portfolio were delayed pending court action.
Additionally, there is no controlling legal precedent under U.S. law and there
may be no controlling legal precedents under the laws of certain foreign
jurisdictions confirming that a Portfolio would be entitled, as against a claim
by such seller or its receiver or trustee in bankruptcy, to retain the
underlying securities. However, with respect to repurchase agreements subject to
U.S. law, the Board of Trustees of the Trust believes that, under the regular
procedures normally in effect for custody of a Portfolio's securities subject to
repurchase agreements and under federal laws, a court of competent jurisdiction
would rule in favor of the Trust if presented with the question. Securities
subject to repurchase agreements will be held by the Trust's custodian or
another qualified custodian or in the Federal Reserve/Treasury book-entry
system. Repurchase agreements are considered by the SEC to be loans by a
Portfolio under the 1940 Act.

       Repurchase Agreement Counterparties. Repurchase counterparties include
       Federal Reserve member banks with assets in excess of $1 billion and
       registered broker dealers which Banc One Investment Advisors deems
       creditworthy under guidelines approved by the Board of Trustees.

REVERSE REPURCHASE AGREEMENTS

Portfolios may borrow money for temporary purposes by entering into reverse
repurchase agreements. Under these agreements, a Portfolio would sell portfolio
securities to financial institutions such as banks and broker-dealers, and agree
to repurchase them at a mutually agreed-upon date and price. A Portfolio would
enter into reverse repurchase agreements only to avoid otherwise selling
securities during unfavorable market conditions to meet redemptions. At the time
a Portfolio entered into a reverse repurchase agreement, it would establish a
segregated custodial account. The Portfolio would deposit assets (such as cash
or liquid securities) that have a value equal to the repurchase price (including
accrued interest). The Portfolio would monitor the account to ensure that such
equivalent value was maintained. Reverse repurchase agreements involve the risk
that the market value of the securities sold by a Portfolio may decline below
the price at which the Portfolio is obligated to repurchase the securities.
Reverse repurchase agreements are considered by the SEC to be borrowings by a
Portfolio under the 1940 Act.

RESTRICTED SECURITIES

The Portfolios may invest in commercial paper issued in reliance on the
exemption from registration afforded by Section 4(2) of the Securities Act of
1933 and other restricted securities. Section 4(2) commercial paper is
restricted as to disposition under federal securities law and is 


                                      24
<PAGE>   75

generally sold to institutional investors, such as the Portfolios, who agree
that they are purchasing the paper for investment purposes and not with a view
to public distribution. Any resale by the purchaser must be in an exempt
transaction. Section 4(2) commercial paper is normally resold to other
institutional investors like the Portfolios through or with the assistance of
the issuer or investment dealers who make a market in Section 4(2) commercial
paper, thus providing liquidity. The Portfolios believe that Section 4(2)
commercial paper and possibly certain other restricted securities which meet the
criteria for liquidity established by the Trustees are quite liquid. The
Portfolios intend, therefore, to treat restricted securities that meet the
liquidity criteria established by the Board of Trustees, including Section 4(2)
commercial paper and Rule 144A Securities, as determined by Banc One Investment
Advisors, as liquid and not subject to the investment limitation applicable to
illiquid securities.

The ability of the Trustees to determine the liquidity of certain restricted
securities is permitted under a SEC Staff position set forth in the adopting
release for Rule 144A under the Securities Act of 1933 ("Rule 144A"). Rule 144A
is a nonexclusive safe-harbor for certain secondary market transactions
involving securities subject to restrictions on resale under federal securities
laws. Rule 144A provides an exemption from registration for resales of otherwise
restricted securities to qualified institutional buyers. Rule 144A was expected
to further enhance the liquidity of the secondary market for securities eligible
for resale. The Portfolios believe that the Staff of the SEC has left the
question of determining the liquidity of all restricted securities to the
Trustees. The Trustees have directed Banc One Investment Advisors to consider
the following criteria in determining the liquidity of certain restricted
securities:

     -    the frequency of trades and quotes for the security;

     -    the number of dealers willing to purchase or sell the security and the
          number of other potential buyers;

     -    dealer undertakings to make a market in the security; and

     -    the nature of the security and the nature of the marketplace trades.

Certain Section 4(2) commercial paper programs cannot rely on Rule 144A because,
among other things, they were established before the adoption of the rule.
However, the Trustees may determine for purposes of the Trust's liquidity
requirements that an issue of 4(2) commercial paper is liquid if the following
conditions, which are set forth in a 1994 SEC no-action letter, are met:

     -    The 4(2) paper must not be traded flat or in default as to principal
          or interest;

     -    The 4(2) paper must be rated in one of the two highest rating
          categories by a least two NRSROs, or if only one NRSRO rates the
          security, by that NRSRO, or if unrated, is determined by Banc One
          Investment Advisors to be of equivalent quality; and

     -    Banc One Investment Advisors must consider the trading market for the
          specific security, taking into account all relevant factors, including
          but not limited, to whether the paper is the subject of a commercial
          paper program that is administered by an issuing and paying agent bank
          and for which there exists a dealer willing to make a market in that
          paper, or is administered by a direct issuer pursuant to a direct
          placement program; and

     -    Banc One Investment Advisors shall monitor the liquidity of the 4(2)
          commercial paper purchased and shall report to the Board of Trustees
          promptly if any such securities are no longer determined to be liquid.
          If such determination causes a Portfolio to hold more than 15% of its
          net assets in illiquid securities, the Board of Trustees shall
          consider what action, if any, should be taken on behalf of the Trust,
          unless Banc One Investment Advisors is able to dispose of illiquid
          assets in an orderly manner in an amount that reduces the Portfolio's
          holdings of illiquid assets to less than 15% of its net assets; and

     -    Banc One Investment Advisors shall report to the Board of Trustees on
          the appropriateness of the purchase and retention of liquid restricted
          securities under these Guidelines no less frequently that quarterly.

                                       25


<PAGE>   76

SECURITIES LENDING

To generate additional income, each of the Portfolios may lend up to 33 1/3% of
the securities in which they are invested pursuant to agreements requiring that
the loan be continuously secured by collateral equal at all times to at least
100% of the market value plus accrued interest on the securities lent.
Collateral may include cash, securities of the U.S. government or its agencies,
shares of an investment trust or mutual fund, letters of credit or any
combination of such collateral. The Portfolios will continue to receive interest
on the securities lent while simultaneously seeking to earn interest on the
investment of cash collateral in U.S. government securities, shares of an
investment trust or mutual fund, commercial paper, repurchase agreements,
variable and floating rate instruments, restricted securities, asset-backed
securities, and the other types of investments permitted by the applicable
Portfolio's prospectus. Collateral is marked to market daily to provide a level
of collateral at least equal to the market value of the securities lent. There
may be risks of delay in recovery of the securities or even loss of rights in
the collateral should the borrower of the securities fail financially. However,
loans will only be made to borrowers deemed by Banc One Investment Advisors to
be of good standing under guidelines established by the Trust's Board of
Trustees and when, in the judgment of Banc One Investment Advisors, the
consideration which can be earned currently from such securities loans justifies
the attendant risk. Loans are subject to termination by the Portfolios or the
borrower at any time, and are therefore, not considered to be illiquid
investments.

SHORT-TERM FUNDING AGREEMENTS
To enhance yield, the Bond Portfolio maymake limited investments in short-term
funding agreements issued by banks and highly rated U.S. insurance companies.
Short-term funding agreements issued by insurance companies are sometimes
referred to as Guaranteed Investment Contracts ("GICs"), while those issued by
banks are referred to as Bank Investment Contracts ("BICs"). Pursuant to these
agreements, the Portfolio makes cash contributions to a deposit account at a
bank or insurance company. The bank or insurance company then credits to the
Portfolio on a monthly basis guaranteed interest at either a fixed, variable or
floating rate. These contracts are general obligations of the issuing bank or
insurance company (although they may be the obligations of an insurance company
separate account) and are paid from the general assets of the issuing entity.

The Portfolio will purchase short-term funding agreements only from banks and
insurance companies which, at the time of purchase, are rated in one of the
three highest rating categories and have assets of $1 billion or more.
Generally, there is no active secondary market in short-term funding agreements.
Therefore, short-term funding agreements may be considered by the Portfolio to
be illiquid investments. To the extent that a short-term funding agreement is
determined to be illiquid, such agreements will be acquired by the Portfolio
only if, at the time of purchase, no more than 15% of the Portfolio's net assets
will be invested in short-term funding agreements and other illiquid securities.

 SPDRs

The Equity Portfolios (except for the Diversified Mid Cap Portfolio) may invest
in Standard & Poor's Depository Receipts ("SPDRs"). SPDRs are interests in unit
investment trusts. These investment trusts invest in a securities portfolio that
includes substantially all of the common stocks (in substantially the same
weights) as the common stocks included in a particular Standard & Poor's Index
such as the S&P 500. SPDRs are traded on the American Stock Exchange, but may
not be redeemed. The results of SPDRs will not match the performance of the
designated S&P Index due to reductions in the SPDRs' performance attributable to
transaction and other expenses, including fees paid by the SPDR to service
providers. SPDRs distribute dividends on a quarterly basis.

SPDRs are not actively managed. Rather, a SPDR's objective is to track the
performance of a specified index. Therefore, securities may be purchased,
retained and sold by SPDRs at times when an actively managed trust would not do
so. As a result, you can expect greater risk of loss (and a correspondingly
greater prospect of gain) from changes in the value of securities that are
heavily weighted in the index than would be the case if SPDR was not fully
invested in such securities. Because of this, a SPDR's price can be volatile,
and a Portfolio may sustain sudden, and sometimes substantial, fluctuations in
the value of its investment in SPDRs.

                                       26




<PAGE>   77
A Portfolio will limit its investments in SPDRs to 5% of the Portfolio's total
assets and 3% of the outstanding voting securities of the SPDRs issuer.
Moreover, a Portfolio's investments in SPDRs will not exceed 10% of the
Portfolio's total assets, when aggregated with all other investments in
investment companies.

STRUCTURED INSTRUMENTS

Structured instruments are debt securities issued by agencies of the U.S.
government (such as Ginnie Mae, Fannie Mae, and Freddie Mac), banks,
corporations, and other business entities whose interest and/or principal
payments are indexed to certain specific foreign currency exchange rates,
interest rates, or one or more other reference indices. Structured instruments
frequently are assembled in the form of medium-term notes, but a variety of
forms are available and may be used in particular circumstances. Structured
instruments are commonly considered to be derivatives.

The terms of structured instruments provide that their principal and/or interest
payments are adjusted upwards or downwards to reflect changes in the reference
index while the structured instruments are outstanding. In addition, the
reference index may be used in determining when the principal is redeemed. As a
result, the interest and/or principal payments that may be made on a structured
product may vary widely, depending on a variety of factors, including the
volatility of the reference index and the effect of changes in the reference
index on principal and/or interest payment.

While structured instruments may offer the potential for a favorable rate of
return from time to time, they also entail certain risks. Structured instruments
may be less liquid than other debt securities, and the price of structured
instruments may be more volatile. If the value of the reference index changes in
a manner other than that expected by Banc One Investment Advisors, principal
and/or interest payments on the structured instrument may be substantially less
than expected. In addition, although structured instruments may be sold in the
form of a corporate debt obligation, they may not have some of the protection
against counterparty default that may be available for publicly traded debt
securities (i.e., the existence of a trust indenture). In that case, the risks
of default associated with structured instruments may be similar to those
associated with swap contracts. See "Swaps, Caps and Floors."

The Portfolios will invest only in structured securities that are consistent
with each Portfolio's investment objective, policies and restrictions and Banc
One Investment Advisors' outlook on market conditions. In some cases, depending
on the terms of the reference index, a structured instrument may provide that
the principal and/or interest payments may be adjusted below zero; however, a
Portfolio will not invest in structured instruments if the terms of the
structured instrument provide that the Portfolio may be obligated to pay more
than its initial investment in the structured instrument, or to repay any
interest or principal that has already been collected or paid back.

Structured instruments that are registered under the federal securities laws may
be treated as liquid. However, many structured instruments may not be registered
under the federal securities laws. In that event, a Portfolio's ability to
resell such a structured instrument may be more limited than its ability to
resell other Portfolio securities. The Portfolio will treat these instruments as
illiquid, and will limit its investments in these instruments to no more than
15% of its net assets, when combined with all other illiquid investments of the
Portfolio.

SWAPS, CAPS AND FLOORS

The Portfolios may enter into swaps, caps, (collectively, "Swap Contracts") and
floors on various securities (such as U.S. government securities), securities
indexes, interest rates, prepayment rates, foreign currencies or other financial
instruments or indexes, in order to protect the value of the Portfolio from
interest rate fluctuations and to hedge against fluctuations in the floating
rate market in which the Portfolio's investments are traded, for both hedging
and non-hedging purposes. The Portfolios may enter into these transactions to
manage their exposure to changing interest rates and other market factors. Some
transactions may reduce each Portfolio's exposure to market fluctuations while
others may tend to increase market exposure. Although different from options,
futures and options on futures, swap contracts are used by the Portfolios for
similar purposes (i.e., risk management and hedging) and therefore, expose the
Portfolios to generally the same risks and opportunities as these investments.

Swap contracts typically involve an exchange of obligations by two sophisticated
parties. For example, in an interest rate swap, the Portfolio may exchange with
another party their respective rights to receive interest, such as an exchange
of fixed rate payments for floating rate payments. 
                                       27
<PAGE>   78


Currency swaps involve the exchange of respective rights to make or receive
payments in specified currencies. Mortgage swaps are similar to interest rate
swaps in that they represent commitments to pay and receive interest. The
notional principal amount, however, is tied to a reference pool or pools of
mortgages.

Caps and floors are variations on swaps. The purchase of a cap entitles the
purchaser to receive a principal amount from the party selling the cap to the
extent that a specified index exceeds a predetermined interest rate or amount.
The purchase of an interest rate floor entitles the purchaser to receive
payments on a notional principal amount from the party selling the floor to the
extent that a specified index falls below a predetermined interest rate or
amount. Caps and floors are similar in many respects to over-the-counter options
transactions, and may involve investment risks that are similar to those
associated with options transactions and options on futures contracts.

Because swap contracts are individually negotiated, they remain the obligation
of the respective counterparties, and there is a risk that a counterparty will
be unable to meet its obligations under a particular swap contract. If a
counterparty defaults on a swap contract with a Portfolio, the Portfolio may
suffer a loss. To address this risk, each Portfolio will usually enter into
interest rate swaps on a net basis, which means that the two payment streams
(one from the Portfolio to the counterparty, one to the Portfolio from the
counterparty) are netted out, with the Portfolio receiving or paying, as the
case may be, only the net amount of the two payments.

Interest rate swaps do not involve the delivery of securities, other underlying
assets, or principal, except for the purposes of collateralization as discussed
below. Accordingly, the risk of loss with respect to interest rate swaps entered
into on a net basis would be limited to the net amount of the interest payments
that the Portfolio is contractually obligated to make. If the other party to an
interest rate swap defaults, the Portfolio's risk of loss consists of the net
amount of interest payments that a Portfolio is contractually entitled to
receive. In addition, the Portfolio may incur a market value adjustment on
securities held upon the early termination of the swap. To protect against
losses related to counterparty default, the Portfolios may enter into swaps that
require transfers of collateral for changes in market value.

In contrast, currency swaps and other types of swaps may involve the delivery of
the entire principal value of one designated currency or financial instrument in
exchange for the other designated currency or financial instrument. Therefore,
the entire principal value of such swaps may be subject to the risk that the
other party will default on its contractual delivery obligations.

In addition, because swap contracts are individually negotiated and ordinarily
non-transferable, there also may be circumstances in which it would be
impossible for a Portfolio to close out its obligations under the swap contract
prior to its maturity. Under these circumstances, the Portfolio might be able to
negotiate another swap contract with a different counterparty to offset the risk
associated with the first swap contract. Unless the Portfolio is able to
negotiate such an offsetting swap contract, however, the Portfolio could be
subject to continued adverse developments, even after Banc One Investment
Advisors determines that it would be prudent to close out or offset the first
swap contract.

The Portfolios will not enter into any mortgage swap, interest rate swap, cap or
floor transaction unless the unsecured commercial paper, senior debt, or the
claims paying ability of the other party thereto is rated in one of the top two
rating categories by at least one NRSRO, or if unrated, determined by Banc One
Investment Advisors to be of comparable quality.

The use of swaps involves investment techniques and risks different from and
potentially greater than those associated with ordinary Portfolio securities
transactions. If Banc One Investment Advisors is incorrect in its expectations
of market values, interest rates, or currency exchange rates, the investment
performance of the Portfolios would be less favorable than it would have been if
this investment technique were not used. In addition, in certain circumstances
entry into a swap contract that substantially eliminates risk of loss and the
opportunity for gain in an "appreciated financial position" will accelerate gain
to the Portfolios.

       The Staff of the SEC is presently considering its position with respect
to swaps, caps and floors as senior securities. Pending a determination by the
Staff, the Portfolios will either treat swaps, caps and floors as being subject
to their senior securities restrictions or will refrain from engaging in swaps,
caps and floors. Once the Staff has expressed a position with respect to swaps,
caps and floors, the Portfolios intend to engage in swaps, caps and floors, if
at all, in a manner 
                                       28
<PAGE>   79
consistent with such position. To the extent the net amount of an interest rate
or mortgage swap is held in a segregated account, consisting of cash or liquid,
high grade debt securities, the Portfolios and Banc One Investment Advisors
believe that swaps do not constitute senior securities under the Investment
Company Act of 1940 and, accordingly, will not treat them as being subject to
each Portfolio's borrowing restrictions. The net amount of the excess, if any,
of each Portfolio's obligations over its entitlements with respect to each
interest rate swap will be accrued on a daily basis and an amount of cash or
liquid securities having an aggregate net asset value at least equal to the
accrued excess will be maintained in a segregated account by the Portfolios'
Custodian. The Bond Portfolios generally will limit their investments in swaps,
caps and floors to 25% of their total assets.

TREASURY RECEIPTS

The Portfolios may purchase interests in separately traded interest and
principal component parts of U.S. Treasury obligations that are issued by banks
or brokerage firms and are created by depositing U.S. Treasury notes and U.S.
Treasury bonds into a special account at a custodian bank. Receipts include:

o   Treasury Receipts ("TRS"),

o   Treasury Investment Growth Receipts ("TIGRS"), and

o   Certificates of Accrual on Treasury Securities ("CATS").

U.S. TREASURY OBLIGATIONS

The Portfolios may invest in bills, notes and bonds issued by the U.S. Treasury
and separately traded interest and principal component parts of those
obligations that are transferable through the Federal book-entry system known as
Separately Traded Registered Interest and Principal Securities ("STRIPS") and
Coupon Under Book Entry Safekeeping ("CUBES"). The Portfolios may also invest in
Inflation Indexed Treasury Obligations.

VARIABLE AND FLOATING RATE INSTRUMENTS

Certain obligations purchased by the Portfolios may carry variable or floating
rates of interest, may involve a conditional or unconditional demand feature and
may include variable amount master demand notes.

VARIABLE AMOUNT MASTER DEMAND NOTES are demand notes that permit the
indebtedness thereunder to vary and provide for periodic adjustments in the
interest rate according to the terms of the instrument. Because master demand
notes are direct lending arrangements between a Portfolio and the issuer, they
are not normally traded. Although there is no secondary market in the notes, a
Portfolio may demand payment of principal and accrued interest. While the notes
are not typically rated by credit rating agencies, issuers of variable amount
master demand notes (which are normally manufacturing, retail, financial,
brokerage, investment banking and other business concerns) must satisfy the same
criteria as set forth above for commercial paper. Banc One Investment Advisors
will consider the earning power, cash flow, and other liquidity ratios of the
issuers of such notes and will continuously monitor their financial status and
ability to meet payment on demand. In determining average weighted portfolio
maturity, a variable amount master demand note will be deemed to have a maturity
equal to the period of time remaining until the principal amount can be
recovered from the issuer through demand.

         The Portfolios, subject to their investment objective policies and
restrictions, may acquire VARIABLE AND FLOATING RATE INSTRUMENTS. A variable
rate instrument is one whose terms provide for the adjustment of its interest
rate on set dates and which, upon adjustment, can reasonably be expected to have
a market value that approximates its par value. A floating rate instrument is
one whose terms provide for the adjustment of its interest rate whenever a
specified interest rate changes and which, at any time, can reasonably be
expected to have a market value that approximates its par value. These
instruments are frequently not rated by credit rating agencies; however, unrated
variable and floating rate instruments purchased by a Portfolio will be
determined by Banc One Investment Advisors under guidelines established by the
Trust's Board of Trustees to be of comparable quality at the time of purchase to
rated instruments eligible for purchase under the 

                                       29
<PAGE>   80
Portfolio's investment policies. In making these determinations, Banc One
Investment Advisors will consider the earning power, cash flow and other
liquidity ratios of the issuers of these instruments (these issuers include
financial, merchandising, bank holding and other companies) and will
continuously monitor their financial condition. There may be no active secondary
market with respect to a particular variable or floating rate instrument
purchased by a Portfolio. The absence of an active secondary market, could make
it difficult for the Portfolio to dispose of the variable or floating rate
instrument involved in the event the issuer of the instrument defaulted on its
payment obligations, and the Portfolio could, for this or other reasons, suffer
a loss to the extent of the default. Variable or floating rate instruments may
be secured by bank letters of credit or other assets. A Portfolio will purchase
a variable or floating rate instrument to facilitate portfolio liquidity or to
permit investment of the Portfolio's assets at a favorable rate of return.

         LIMITATIONS ON THE USE OF VARIABLE AND FLOATING RATE NOTES. Variable
and floating rate instruments for which no readily available market exists will
be purchased in an amount which, together with securities with legal or
contractual restrictions on resale or for which no readily available market
exists (including repurchase agreements providing for settlement more than seven
days after notice), exceeds 15% of the Portfolio's net assets only if these
instruments are subject to a demand feature that will permit the Portfolio to
demand payment of the principal within seven days after demand by the Portfolio.
There is no limit on the extent to which a Portfolio may purchase demand
instruments that are not illiquid. If not rated, these instruments must be found
by Banc One Investment Advisors under guidelines established by the Trust's
Board of Trustees, to be of comparable quality to instruments that are rated
high quality. A rating may be relied upon only if it is provided by a nationally
recognized statistical rating organization that is not affiliated with the
issuer or guarantor of the instruments. For a description of the rating symbols
of S&P, Moody's, and Fitch used in this paragraph, see the Appendix.

WARRANTS
         Warrants are securities, typically issued with preferred stock or
bonds, that give the holder the right to buy a proportionate amount of common
stock at a specified price, usually at a price higher than the market price at
the time of issuance of the warrant. The right may last for a period of years or
indefinitely.
WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS

         The Portfolios may purchase securities on a "when-issued" and forward
commitment basis. When a Portfolio agrees to purchase securities, the
Portfolio's custodian will set aside cash or liquid portfolio securities equal
to the amount of the commitment in a separate account. The Portfolios may
purchase securities on a when-issued basis when deemed by Banc One Investment
Advisors to present attractive investment opportunities. When-issued securities
are purchased for delivery beyond the normal settlement date at a stated price
and yield, thereby involving the risk that the yield obtained will be less than
that available in the market at delivery. The Portfolios generally will not pay
for these securities or earn interest on them until received. Although the
purchase of securities on a when-issued basis is not considered to be
leveraging, it has the effect of leveraging. When Banc One Investment Advisors
purchases a when-issued security, the Custodian will set aside cash or liquid
securities to satisfy the purchase commitment. In this case, a Portfolio may be
required subsequently to place additional assets in the separate account to
assure that the value of the account remains equal to the amount of the
Portfolio's commitment. The Portfolio's net assets may fluctuate to a greater
degree when it sets aside portfolio securities to cover purchase commitments
than when it sets aside cash. In addition, when a Portfolio engages in
"when-issued" transactions, it relies on the seller to complete the trade.
Failure of the seller to do so may result in the Portfolio's incurring a loss or
missing the opportunity to obtain a price considered to be advantageous.

         In a forward commitment transaction, the Portfolios contract to
purchase securities for a fixed price at a future date beyond customary
settlement time. The Portfolios are required to hold and maintain in a
segregated account until the settlement date, cash, U.S. government securities
or liquid high-grade debt obligations in an amount sufficient to meet the
purchase price. Alternatively, the Portfolios may enter into offsetting
contracts for the forward sale of other securities that they own. The purchase
of securities on a when-issued or forward commitment basis involves a risk of
loss if the value of the security to be purchased declines prior to the
settlement date.

         Limitations on the Use of When Issued Securities and Forward
Commitments. No Portfolio intends to purchase "when-issued" securities for
speculative purposes but only for the purpose of 
                                       30
<PAGE>   81
acquiring portfolio securities. Because a Portfolio will set aside cash or
liquid portfolio securities to satisfy its purchase commitments in the manner
described, the Portfolio's liquidity and the ability of Banc One Investment
Advisors to manage the Portfolio might be affected in the event its commitments
to purchase when-issued securities ever exceeded 40% of the value of its assets.
Commitments to purchase when-issued securities will not, under normal market
conditions, exceed 25% of a Portfolio's total assets, and a commitment will not
exceed 90 days. A Portfolio may dispose of a when-issued security or forward
commitment prior to settlement if Banc One Investment Advisors deems it
appropriate to do so.

INVESTMENT RESTRICTIONS

         The following investment restrictions are "fundamental policies" of
each Portfolio. The investment objectives of each Portfolio (which can be found
in response to the first question in each of the Risk/Return Summaries) are also
"fundamental policies." Fundamental policies cannot be changed with respect to a
Portfolio without the consent of the holders of a majority of the Portfolio's
outstanding shares. The term "majority of the outstanding shares" means the vote
of (i) 67% or more of the Portfolio's shares present at a meeting, if more than
50% of the outstanding shares of the Portfolio are present or represented by
proxy, or (ii) more than 50% of the Portfolio's outstanding shares, whichever is
less.

         Each Portfolio may not:

         1. Purchase securities of any issuer (except securities issued or
guaranteed by the United States, its agencies or instrumentalities and
repurchase agreements involving such securities) if as a result more than 5% of
the total assets of the Portfolio would be invested in the securities of such
issuer or the Portfolio would own more than 10% of the outstanding voting
securities of such issuer. This restriction applies to 75% of the Portfolio's
assets. For purposes of this limitation, a security is considered to be issued
by the government entity whose assets and revenues guarantee or back the
security. With respect to private activity bonds or industrial development bonds
backed only by the assets and revenues of a nongovernmental user, such user
would be considered the issuer.

         2. Purchase any securities which would cause more than 25% of the total
assets of the Portfolio to be invested in the securities of one or more issuers
conducting their principal business activities in the same industry, provided
that this limitation does not apply to investments in the obligations issued or
guaranteed by the U.S. Government or its agencies and instrumentalities and
repurchase agreements involving such securities. For purposes of this limitation
(i) utility companies will be divided according to their services, for example,
gas, gas transmission, electric and telephone will each be considered a separate
industry; and (ii) wholly-owned finance companies will be considered to be in
the industries of their parents if their activities are primarily related to
financing the activities of their parents.

         3. Make loans, except that a Portfolio may (i) purchase or hold debt
instruments in accordance with its investment objectives and policies; (ii)
enter into repurchase agreements; and (iii) engage in securities lending as
described in the Prospectus and in the Statement of Additional Information.

   
         4. Purchase securities on margin or sell securities short.
    

         5. Underwrite the securities of other issuers except to the extent that
a Portfolio may be deemed to be an underwriter under certain securities laws in
the disposition of "restricted securities."

         6. Purchase or sell commodities or commodity contracts, except that the
Portfolios may purchase or sell financial futures contracts for bona fide
hedging and other permissible purposes.

         7. Purchase participations or other direct interests in oil, gas or
mineral exploration or development programs (although investments by the
Portfolios in marketable securities of companies engaged in such activities are
not hereby precluded).

         8. Invest in any issuer for purposes of exercising control or
management.

                                       31

<PAGE>   82
         9. Purchase securities of other investment companies except as
permitted by the Investment Company Act of 1940 and the rules and regulations
thereunder.

         10. Purchase or sell real estate (however, each Portfolio may, to the
extent appropriate to its investment objective, purchase securities secured by
real estate or interests therein or securities issued by companies investing in
real estate or interests therein).

         11. Borrow money or issue senior securities, except that each Portfolio
may borrow from banks or enter into reverse repurchase agreements for temporary
purposes in amounts up to 10% of the value of its total assets at the time of
such borrowing; or mortgage, pledge, or hypothecate any assets, except in
connection with any such borrowing and in amounts not in excess of the lesser of
the dollar amounts borrowed or 10% of the value of the Portfolio's total assets
at the time of its borrowing. A Portfolio will not purchase securities while its
borrowings (including reverse repurchase agreements) in excess of 5% of its
total assets are outstanding. The foregoing percentages will apply at the time
of the purchase of a security.

   
         The Balanced Portfolio, the Government Bond Portfolio, the Large Cap
Growth Portfolio, the Mid Cap Growth Portfolio, and the Equity Index Portfolio
may not participate on a joint or joint and several basis in any securities
trading account.
    

         The following investment restrictions are non-fundamental except as
noted otherwise and therefore can be changed by the Board of Trustees without
prior shareholder approval.

         No Portfolio may invest in illiquid securities in an amount exceeding,
in the aggregate, 15% of the Portfolio's net assets. An illiquid security is a
security which cannot be disposed of promptly (within seven days) and in the
usual course of business without a loss, and includes repurchase agreements
maturing in excess of seven days, time deposits with a withdrawal penalty,
non-negotiable instruments and instruments for which no market exists.

         The foregoing percentages apply at the time of purchase of a security.
Banc One Investment Advisors Corporation shall report to the Board of Trustees
promptly if any of a Portfolio's investments are no longer determined to be
liquid or if the market value of Portfolio assets has changed if such
determination or change causes a Portfolio to hold more than 15% of its net
assets in illiquid securities in order for the Board of Trustees to consider
what action, if any, should be taken on behalf of the Trust, unless Banc One
Investment Advisors is able to dispose of illiquid assets in an orderly manner
in an amount that reduces the Portfolio's holdings to less than 15% of its net
assets.

PORTFOLIO TURNOVER

         The portfolio turnover rate for each Portfolio is calculated by 
dividing the lesser of purchases or sales of portfolio securities for the year
by the monthly average value of the portfolio securities. The calculation
excludes all securities whose maturities at the time of acquisition were one
year or less. The Portfolio turnover rates for the years ended December 31, 1998
and 1997 for the following Portfolios were as follows:

   
<TABLE>
<CAPTION>
         Portfolio                                    1997             1998
         ---------                                    ----             ----
<S>                                                   <C>              <C>
         Government Bond Portfolio                    21.3%             40.4%

         Balanced Portfolio                           60.9%             32.1%

         Large Cap Growth Portfolio                   34.4%             61.0%

         Mid Cap Growth Portfolio                     175.6%            87.7%

         Equity Index Portfolio                       NA*                2.3%**
</TABLE>
    

         *The Equity Index Portfolio began operations on May 1, 1998.

   
        **not annualized
    
 
         The higher portfolio rates for the Mid Cap Growth Portfolio was the
result of a conscience shift into larger capitalization issuers and the
volatility in small and mid capitalization technology stocks.

         The Portfolio turnover rates for the years ended December 31, 1998 and
1997 for the Predecessor Funds of the Bond Fund, the Diversified Mid Cap
Portfolio, the Mid Cap Value Portfolio, and the Diversified Equity Portfolio
were as follows:

   
<TABLE>
<CAPTION>
         Portfolio                                    1997             1998
         ---------                                    ----             ----
<S>                                               <C>               <C>
         Bond Portfolio                               14.8%             14.5%
         Diversified Mid Cap Portfolio                80.7%             26.2%
</TABLE>
    


                                       32

<PAGE>   83
   
         Mid Cap Value Portfolio                   19.6%         39.3%
         Diversified Equity Portfolio              31.1%         43.2%
    

         Higher turnover rates will generally result in higher brokerage
expenses. Portfolio turnover may vary greatly from year to year as well as
within a particular year.

ADDITIONAL TAX INFORMATION CONCERNING THE PORTFOLIOS

         It is the policy of each Portfolio to meet the requirements necessary
to qualify as a "regulated investment company" under Subchapter M of the
Internal Revenue Code of 1986, as amended (the "Code"). By following such
policy, each Portfolio expects to eliminate or reduce to a nominal amount the
federal income taxes to which it may be subject.

         In order to qualify as a regulated investment company, each Portfolio
must, among other things, (1) derive at least 90% of its gross income from
dividends, interest, payments with respect to securities loans, and gains from
the sale or other disposition of stock or securities, foreign currencies or
other income (including gains from options, futures or forward contracts)
derived with respect to its business of investing in stock, securities or
currencies, and (2) diversify its holdings so that at the end of each quarter of
its taxable year (i) at least 50% of the market value of the Portfolio's assets
is represented by cash or cash items, United States Government securities,
securities of other regulated investment companies, and other securities
limited, in respect of any one issuer, to an amount not greater than 5% of the
value of the Portfolio's total assets and 10% of the outstanding voting
securities of such issuer, and (ii) not more than 25% of the value of its total
assets is invested in the securities of any one issuer (other than United States
Government securities or the securities of other regulated investment companies)
or of two or more issuers that the Portfolio controls and that are engaged in
the same, similar, or related trades or businesses. These requirements may limit
the range of the Portfolio's investments. If a Portfolio qualifies as a
regulated investment company, it will not be subject to federal income tax on
the part of its income distributed to shareholders, provided the Portfolio
distributes during its taxable year at least (a) 90% of its investment company
taxable income, and (b) 90% of the excess of (i) its tax-exempt interest income
less (ii) certain deductions attributable to that income. Each Portfolio intends
to make sufficient distributions to Shareholders to meet this requirement.

         For a discussion of the tax consequences of variable annuity contracts,
refer to the prospectuses of the separate accounts offering variable life and
variable annuity contracts as they may be applicable to your situation. Variable
annuity contracts purchased through insurance company separate accounts provide
for the accumulation of all earnings from interest, dividends, and capital
appreciation without current federal income tax liability for the owner.
Depending on the variable annuity contract, distributions from the contract may
be subject to ordinary income tax and, in addition, on distributions before age
59 1/2, a 10% penalty tax. Only the portion of a distribution attributable to
income on the investment in the contract is subject to federal income tax.
Investors should consult with competent tax advisors for a more complete
discussion of possible tax consequences in a particular situation.

         The Code imposes a non-deductible excise tax on regulated investment
companies that do not distribute in each calendar year (regardless of whether
they otherwise have a non-calendar taxable year) an amount equal to 98% of their
"ordinary income" (as defined) for the calendar year plus 98% of their "capital
gain net income" (as defined) for the 1-year period ending on October 31 of such
calendar year. The balance, if any, of such income must be distributed during
the next calendar year. If distributions during a calendar year were less than
the required amount, a particular Portfolio would be subject to a non-deductible
excise tax equal to 4% of the deficiency. A Portfolio is exempt from this excise
tax if at all times during the calendar year each shareholder in the Portfolio
was either a trust described in Section 401(a) of the Code and exempt from tax
under section 501(a) of the Code or a segregated asset account of a life
insurance company held in connection with variable contracts.

         Section 817(h) of the Code imposes certain diversification standards on
the underlying assets of variable annuity contracts held in the Portfolios. The
Code provides that a variable annuity contract shall not be treated as an
annuity contract for any period (and any subsequent period) for which the
investments are not, in accordance with regulations prescribed by the Treasury
Department, adequately diversified. Disqualification of the variable annuity
contract as an annuity


                                       33

<PAGE>   84
contract would result in immediate imposition of federal income tax on variable
annuity contract owners with respect to earnings allocable to the contract. This
liability would generally arise prior to the receipt of payments under the
contract. Section 817(h)(2) of the Code is a safe harbor provision which
provides that variable annuity contracts meet the diversification requirements
if, as of the close of each quarter, the underlying assets meet the
diversification standards for a regulated investment company and no more than
fifty-five percent (55%) of the total assets consists of cash, cash items, U.S.
Government securities and securities of other regulated investment companies.

         The Treasury Department has issued Regulations (Treas. Reg. 1.817-5),
that establish diversification requirements for the investment portfolios
underlying variable annuity contracts. The Regulations amplify the
diversification requirements for variable annuity contracts set forth in Section
817(h) of the Code and provide an alternative to the safe harbor provision
described above. Under the Regulations, an investment portfolio will be deemed
adequately diversified if (i) no more than 55 percent of the value of the total
assets of the portfolio is represented by any one investment; (ii) no more than
70 percent of such value is represented by any two investments; (iii) no more
than 80 percent of such value is represented by any three investments; and (iv)
no more than 90 percent of such value is represented by any four investments.
For purposes of these Regulations all securities of the same issuer, all
interests in the same real estate project and all interests in the same
commodity are treated as a single investment. The Code provides that for
purposes of determining whether or not the diversification standards imposed on
the underlying assets of variable annuity contracts by Section 817(h) of the
Code have been met, "each United States government agency or instrumentality
shall be treated as a separate issuer."

         Treasury regulations provide that a variable annuity contract will be
able to look through to the assets held by a Portfolio for the purpose of
meeting the diversification test if the Portfolio meets certain requirements.
Each Portfolio will be managed in such a manner as to comply with the
diversification requirements and to allow the variable annuity contracts to be
treated as owning a proportionate share of such Portfolio's assets. It is
possible that in order to comply with the diversification requirements, less
desirable investment decisions may be made which would affect the investment
performance of such Portfolio.

         The above discussion of the federal income tax treatment of the
Portfolios assumes that all the insurance company accounts holding shares of a
Portfolio are either segregated asset accounts underlying variable contracts as
defined in Section 817(d) of the Code or the general account of a life insurance
company as defined in Section 816 of the Code. Additional tax consequences may
apply to holders of variable contracts investing in a Portfolio if any of those
contracts are not treated as annuity, endowment or life insurance contracts.

VALUATION

VALUATION OF THE PORTFOLIOS

         Securities traded on a national securities exchange are valued at the
last quoted sale price on the principal exchange, or if no sale, at their fair
value as determined in good faith under consistently applied procedures
authorized by the Board of Trustees. Securities traded only in the
over-the-counter (OTC) market are valued at the last quoted sale price, or if
there is no sale, at the quoted bid price provided by an independent pricing
agent. Corporate debt securities and debt securities of U.S. issuers, including
municipal securities, are valued by a combination of daily quotes and matrix
evaluations provided by dealers or by an independent pricing service approved by
the Board of Trustees. Inactive securities that have little or no trading
activity are evaluated by the independent pricing services by obtaining dealer
quotes. Futures contracts and options thereon traded on a commodities exchange
or board of trade are valued at the last sales price at the close of trading, or
if there was no sale, the quoted bid price at the close of trading. Securities
for which reliable market quotations are not readily available or for which the
pricing agent does not provide a valuation that in the judgment of the
Portfolio's investment adviser, represents fair value, shall each be valued in
accordance with procedures authorized by the Board of Trustees.

The Portfolios may invest in repurchase agreements with institutions that the
investment advisor has determined are creditworthy. Each repurchase agreement is
recorded at cost. The value of a foreign security is determined in its national
currency as of the close of trading on the foreign exchange or other principal
market on which it is traded, which value is then converted into its U.S. Dollar
equivalent at the foreign exchange rate reported by the independent pricing
agent via WM/Reuters Forex as of the close of the London exchange.

                                       34
<PAGE>   85


ADDITIONAL INFORMATION REGARDING THE CALCULATION OF PER SHARE NET ASSET VALUE

         The net asset value of each Portfolio is determined and its Shares are
priced as of the times specified in the Portfolios' Prospectus. The net asset
value per Share of each Portfolio is calculated by determining the value of the
interest in the securities and other assets of the Portfolio, less liabilities
and dividing such amount by the number of Shares of the Portfolio outstanding.

ADDITIONAL PURCHASE AND REDEMPTION INFORMATION

         Shares of the Portfolios are sold continuously to insurance company
separate accounts. The Portfolios may suspend the right of redemption or
postpone the date of payment for Shares during any period when (a) trading on
the New York Stock Exchange (the "Exchange") is restricted by applicable rules
and regulations of the Securities and Exchange Commission, (b) the Exchange is
closed for other than customary weekend and holiday closings, (c) the Securities
and Exchange Commission has by order permitted such suspension, or (d) an
emergency exists as determined by the Securities and Exchange Commission.

MANAGEMENT OF THE TRUST

TRUSTEES & OFFICERS

         The Board of Trustees oversees the management and administration of the
Portfolios. The Trustees are responsible for making major decisions about each
Portfolio's investment objectives and policies, but delegate the day-to-day
administration of the Portfolios to the officers of the Trust. There are
currently five Trustees. The Trustees, in turn, elect the officers of the
Portfolios.

         The Trustees of the Portfolios, their addresses, ages and principal
occupations during the past five years are set forth below.

<TABLE>
<CAPTION>
NAME AND ADDRESS             AGE        POSITION HELD       PRINCIPAL OCCUPATION DURING THE PAST FIVE YEARS
                                        WITH THE TRUST

<S>                          <C>        <C>                 <C>
Peter C. Marshall            56         Trustee             From November, 1993 to present, President, DCI
DCI Marketing, Inc.                                         Marketing, Inc.
2727 W. Good Hope Rd.
Milwaukee, WI  53209

Charles I. Post              70         Trustee             From July, 1986 to present, self employed as a
7615 4th Avenue West                                        consultant.
Bradenton, FL  34209

Frederick W. Ruebeck         59         Trustee             From June, 1988 to present, Director of
Eli Lilly & Company                                         Investments, Eli Lilly and Company.
Lilly Corporate Center
307 East McCarty
Indianapolis, IN  46258

Robert A. Oden, Jr.          52         Trustee             From 1995 to present, President , Kenyon College;
Office of the President                                     from 1989 to 1995, Headmaster, The Hotchkiss
Ransom Hall                                                 School.
</TABLE>
                                       35
<PAGE>   86
<TABLE>
<S>                          <C>        <C>                 <C>
Kenyon College
Gambier , OH  43022

*John F. Finn                51         Trustee             Since 1975, President of Gardner, Inc.
President                                                   (Wholesale distributor to outdoor 
Gardner, Inc.                                               power equipment industry)
1150 Chesapeake Ave.
Columbus, Ohio  43212
</TABLE>


*John F. Finn is an "interested person" as that term is defined in the 
Investment Company Act of 1940.

The Trustees of the Portfolios receive fees and expenses for each meeting of the
Board of Trustees attended. The Compensation Table on the next page sets forth
the total compensation to the Trustees from the Trust for the fiscal year ended
December 31, 1998.


                             COMPENSATION TABLE (1)

<TABLE>
<CAPTION>
- -------------------------- ------------------ ------------------- --------------------- --------------------
NAME OF PERSON,                AGGREGATE          PENSION OR        ESTIMATED ANNUAL    TOTAL COMPENSATION
POSITION                     COMPENSATION         RETIREMENT         BENEFITS UPON      FROM THE PORTFOLIO
                               FROM THE        BENEFITS ACCRUED        RETIREMENT             COMPLEX
                             PORTFOLIOS(2)        AS PART OF
                                                  PORTFOLIO
                                                   EXPENSES
- -------------------------- ------------------ ------------------- --------------------- --------------------
<S>                        <C>                <C>                 <C>                   <C>               
Peter C. Marshall,         $3000              NA                  NA                    $51,000
Trustee

- -------------------------- ------------------ ------------------- --------------------- --------------------
Charles I. Post, Trustee   $3000              NA                  NA                    $48,500

- -------------------------- ------------------ ------------------- --------------------- --------------------
Frederick W. Ruebeck,      $3000              NA                  NA                    $48,500
Trustee(3)

- -------------------------- ------------------ ------------------- --------------------- --------------------
Robert  A. Oden, Jr.,      $3000              NA                  NA                    $48,500
Trustee

- -------------------------- ------------------ ------------------- --------------------- --------------------
John F. Finn, Trustee(4)   $1500              NA                  NA                    $24,500


- -------------------------- ------------------ ------------------- --------------------- --------------------
</TABLE>

(1)      "Portfolio Complex" comprises the 9 Portfolios of the Trust, as well as
         the Funds of The One Group(R) as of December 31, 1998 Compensation for
         the "Portfolio Complex" is for the fiscal year ended December 31, 1998.


(2)      Pursuant to a Deferred Compensation Plan for Trustees of One Group
         Investment Trust (the "Plan") adopted at the November 19, 1998 Board of
         Trustee's meeting, the Trustees may defer all or a part of their
         compensation payable by the Trust. Under the Plan, the Trustees may
         specify Class I Shares (formerly fiduciary class shares) of one or more
         funds of The One Group to be used to measure the performance of a
         Trustee's deferred compensation account. A Trustee's deferred
         compensation account will be paid at such times as elected by the
         Trustee subject to certain mandatory payment provisions in the Plan
         (e.g., death of a Trustee).

(3)      Includes $750 of deferred compensation.

(4)      Includes $750 of deferred compensation.

The officers of the Portfolios receive no compensation directly from the
Portfolios for performing the duties of their offices. The officers of the
Trust, their addresses, ages and principal occupations during the past five
years are shown below:

                                       36

<PAGE>   87
   
<TABLE>
<CAPTION>
- -------------------------------- --------- ------------------ --------------------------------------------------------
NAME AND ADDRESS                    AGE    POSITION(S) HELD   PRINCIPAL OCCUPATION DURING PAST 5 YEARS
                                           WITH THE TRUST
- -------------------------------- --------- ------------------ --------------------------------------------------------
<S>                              <C>       <C>                <C>
James F. Laird, Jr.*                42     President and      Mr. Laird was elected Vice President-General Manager
Three Nationwide Plaza                     Treasurer          of Nationwide Advisory Services, Inc., on April 5,
Columbus, Ohio  43215                                         1995. Prior to being elected General Manager, Mr.
                                                              Laird served as Treasurer of Nationwide Advisory
                                                              Services, Inc. since November, 1987.
- -------------------------------- --------- ------------------ --------------------------------------------------------
Karen R. Tackett*                   32     Vice President     Since August, 1998, Ms. Tackett has been Director
Three Nationwide Plaza                     and Assistant      Strategic Development of Nationwide Advisory Services,
Columbus, Ohio  43215                      Treasurer          Inc. From March, 1996 until July, 1998, Ms. Tackett
                                                              was Accounting Manager for Nationwide Advisory
                                                              Services, Inc. Prior to that, Ms. Tackett was Audit
                                                              Manager and held various other positions with
                                                              PricewaterhouseCoopers LLP (formerly Coopers & Lybrand,
                                                              L.L.P.)
- -------------------------------- --------- ------------------ --------------------------------------------------------
Craig A. Carver*                    44     Vice President     Mr. Carver has been Compliance Manager of Nationwide
Three Nationwide Plaza                     and Assistant      Advisory Services, Inc. since January, 1996. Prior
Columbus, Ohio  43215                      Secretary          to that time, Mr. Carver served as Financial Controls
                                                              Manager of Nationwide Advisory Services, Inc.
- -------------------------------- --------- ------------------ --------------------------------------------------------
Christopher A. Cray*                40     Vice President     Mr. Cray has been Treasurer of Nationwide Advisory
Three Nationwide Plaza                     and Secretary      Services, Inc. since September, 1997. Prior to that
Columbus, Ohio  43215                                         time he  served as director-Corporate Accounting  of
                                                              Nationwide Insurance Enterprises.
- -------------------------------- --------- ------------------ --------------------------------------------------------
H. Carl Juckett*                    43     Vice President     Mr. Juckett jointed Nationwide Advisory Services in
Three Nationwide Plaza                     and                July, 1998 as the  manager of Fund Accounting. Prior
Columbus, Ohio 43215                       Assistant          to joining Nationwide, Mr. Juckett served as a vice
                                           Treasurer          president for BISYS Fund Services where he managed
                                                              Fund Accounting during a four year period. Mr. Juckett
                                                              also spent eleven years with Huntington Bancshares 
                                                              serving in a variety of positions related to 
                                                              investments, trust and broker/dealer activities.
- -------------------------------- --------- ------------------ --------------------------------------------------------
</TABLE>
    

* All officers listed above are "interested persons" of the Portfolios as
defined in the Investment Company Act of 1940.

INVESTMENT ADVISOR

         Investment advisory services to each of the Portfolios are provided by
Banc One Investment Advisors. Banc One Investment Advisors makes the investment
decisions for the assets of the Portfolios and continuously reviews, supervises
and administers the Portfolio's investment program, subject to the supervision
of, and policies established by, the Trustees. The Portfolios' shares are not
sponsored, endorsed or guaranteed by, and do not constitute obligations or
deposits of any bank affiliate of Banc One Investment Advisors and are not
insured by the FDIC or issued or guaranteed by the U.S. Government or any of its
agencies.


                                       37

<PAGE>   88
         As of December 31, 1998, Banc One Investment Advisors, an indirect
wholly-owned subsidiary of BANK ONE CORPORATION, a bank holding company located
in the state of Illinois, managed over $54 billion in assets. BANK ONE
CORPORATION has affiliate banking organizations in Arizona, Colorado, Illinois,
Indiana, Kentucky, Louisiana, Michigan, Ohio, Oklahoma, Texas, Utah, West
Virginia and Wisconsin. In addition, BANK ONE CORPORATION has several affiliates
that engage in data processing, venture capital, investment and merchant
banking, and other diversified services including trust management, investment
management, brokerage, equipment leasing, mortgage banking, consumer finance,
and insurance.

         Banc One Investment Advisors represents a consolidation of the
investment advisory staffs of a number of bank affiliates of BANK ONE
CORPORATION, which have considerable experience in the management of open-end
management investment company portfolios, including One Group (an open-end
management investment company which offered units of beneficial interest in 34
separate Portfolios as of December 31, 1998, some of which have similar names as
the Portfolios of the Trust and are managed similarly to such Portfolios) since
1985.

         All investment advisory services are provided to the Portfolios by Banc
One Investment Advisors pursuant to an investment advisory agreement dated
August 1, 1994 (the "Advisory Agreement"). Unless sooner terminated, the
Advisory Agreement will continue in effect until August 31, 1999, and will
continue in effect as to a particular Portfolio from year to year thereafter if
such continuance is approved at least annually by the Trust's Board of Trustees
or by vote of a majority of the outstanding Shares of such Portfolio (as defined
under "ADDITIONAL INFORMATION-- Miscellaneous" in this Statement of Additional
Information), and a majority of the Trustees who are not parties to the
respective investment advisory agreements or interested persons (as defined in
the Investment Company Act of 1940) of any party to the respective investment
advisory agreements by votes cast in person at a meeting called for such
purpose. The Advisory Agreement may be terminated as to a particular Portfolio
at any time on 60 days' written notice without penalty by:

       1.___the Trustees,

       2.___vote of a majority of the outstanding Shares of that Portfolio, or

       3.___the Portfolio's Advisor, as the case may be.

The Advisory Agreement also terminates automatically in the event of any
assignment, as defined in the Investment Company Act of 1940.

         The Advisory Agreement provides that Banc One Investment Advisors shall
not be liable for any error of judgment or mistake of law or for any loss
suffered by the Trust in connection with the performance of the Advisory
Agreement, except a loss resulting from a breach of fiduciary duty with respect
to the receipt of compensation for services or a loss resulting from willful
misfeasance, bad faith, or gross negligence on the part of the Advisor in the
performance of its duties, or from reckless disregard by it of its duties and
obligations under the Agreement.

         Banc One Investment Advisors is entitled to a fee, which is calculated
daily and paid monthly, at the following percentages of the average daily net
assets of each Portfolio:
<TABLE>
<CAPTION>
NAME OF PORTFOLIO                                 PERCENTAGE
<S>                                               <C>
Bond Portfolio                                       0.60%
Government Bond Portfolio                            0.45%
Balanced Portfolio                                   0.70%
Mid Cap Growth Portfolio                             0.65%
Large Cap Growth Portfolio                           0.65%
Equity Index Portfolio                               0.30%
Diversified Equity Portfolio                         0.74%
Diversified Mid Cap Portfolio                        0.74%
Mid Cap Value Portfolio.                             0.74%
</TABLE>
                                       38
<PAGE>   89
         Banc One Investment Advisors has voluntarily agreed to waive all or
part of its fees in order to limit the Portfolios' total operating expenses on
an annual basis to not more than the following percentages of the average daily
net assets of each of the Portfolios:

<TABLE>
<CAPTION>
NAME OF PORTFOLIO                                 PERCENTAGE
<S>                                               <C>
Bond Portfolio                                       0.75%
Government Bond Portfolio                            0.75%
Balanced Portfolio                                   1.00%
Mid Cap Growth Portfolio                             1.10%
Large Cap Growth Portfolio                           1.00%
Equity Index Portfolio                               0.55%
Diversified Equity Portfolio                         0.95%
Diversified Mid Cap Portfolio                        0.95%
Mid Cap Value Portfolio                              0.95%
</TABLE>


These fee waivers are voluntary and may be terminated at any time.

For the fiscal years ended December 31, 1998, 1997, and 1996, the following
Portfolios paid investment advisory fees as follows:

FISCAL YEAR ENDED DECEMBER 31,

   
<TABLE>
<CAPTION>
                                          1998                         1997                      1996
                                          ----                         ----                      ----
Portfolio                            Net      Waived            Net        Waived           Net         Waived
- ---------                            ---      ------            ---        ------           ---         ------
<S>                               <C>        <C>            <C>            <C>           <C>            <C>    
Government Bond Portfolio           $128,907      $ 9,393     $78,818      $23,446        $23,470       $31,993
Balanced Portfolio                  $490,270      $ 2,862    $189,332      $44,906        $26,690       $31,993
Mid Cap Growth Portfolio            $431,700      $   --     $233,609      $ 4,114        $43,318       $48,685
Large Cap Growth Portfolio          $948,112      $   --     $458,066      $ 1,114       $136,980       $53,497
Equity Index Portfolio              $    --       $15,432         NA*          NA*            NA*           NA*
</TABLE>
    

* The Equity Index Portfolio commenced operations on May 1, 1998.

   
Prior to March 31, 1999, First Chicago NBD Investment Management Company
("FCNIMCO") provided investment management services to the Predecessor Funds of
the Bond Fund, the Diversified Mid Cap Portfolio, the Mid Cap Value Portfolio,
and the Diversified Equity Portfolio. FCNIMCO is an indirect subsidiary of BANK
ONE CORPORATION and an affiliate of Banc One Investment Advisors. For the fiscal
years ended December 31, 1998, 1997, and 1996, the following Portfolios paid
investment advisory fees to FCNIMCO as follows:
    

FISCAL YEAR ENDED DECEMBER 31,

   
<TABLE>
<CAPTION>
                                          1998                         1997                       1996
                                          ----                         ----                       ----
Portfolio                            Net      Waived            Net         Waived           Net         Waived
- ---------                            ---      ------            ---         ------           ---         ------
<S>                               <C>         <C>             <C>          <C>           <C>           <C>
Bond Portfolio                      $164,396      $26,975       $59,313     $ 2,899      $ NA*          $  NA*
Diversified Mid Cap Portfolio       $  5,234      $82,956       $ 2,396     $58,356      $ --           $48,992
Mid Cap Value Portfolio             $ 50,740      $57,553       $20,834     $17,342      $ NA*          $  NA*
Diversified Equity Portfolio        $263,173      $33,240       $96,428     $37,901      $ --           $42,701
</TABLE>
    

*Commenced operations on May 1, 1997.


                                       39
<PAGE>   90

GLASS-STEAGALL ACT

         In 1971, the United States Supreme Court held in Investment Company
Institute v. Camp that the Federal statute commonly referred to as the
Glass-Steagall Act prohibits a national bank from operating a Portfolio for the
collective investment of managing agency accounts. Subsequently, the Board of
Governors of the Federal Reserve System (the "Board") issued a regulation and
interpretation to the effect that the Glass-Steagall Act and such decision: (a)
forbid a bank holding company registered under the Federal Bank Holding Company
Act of 1956 (the "Holding Company Act") or any of its non-bank affiliates from
sponsoring, organizing, or controlling a registered, open-end investment company
continuously engaged in the issuance of its shares, but (b) do not prohibit a
bank holding company or affiliate from acting as investment advisor, transfer
agent, and custodian to an investment company. In 1981, the United States
Supreme Court held in Board of Governors of the Federal Reserve System v.
Investment Company Institute that the Board did not exceed its authority under
the Holding Company Act when it adopted its regulation and interpretation
authorizing bank holding companies and their non-bank affiliates to act as
investment advisors to registered closed-end investment companies. In the Board
of Governors case, the Supreme Court also stated that if a national bank
complied with the restrictions imposed by the Board in its regulation and
interpretation authorizing bank holding companies and their non-bank affiliates
to act as investment advisors to investment companies, a national bank
performing investment advisory services for an investment company would not
violate the Glass-Steagall Act.

         In the Advisory Agreement, Banc One Investment Advisors has represented
to the Portfolios that it possesses the legal authority to perform the
investment advisory services contemplated by the agreement and described in the
Prospectus and this Statement of Additional Information without violation of
applicable statutes and regulations. Future changes in either Federal or state
statutes and regulations relating to the permissible activities of banks or bank
holding companies and the subsidiaries or affiliates of those entities, as well
as further judicial or administrative decisions or interpretations of present
and future statutes and regulations, could prevent or restrict Banc One
Investment Advisors from continuing to perform such services for the Portfolios.
Depending upon the nature of any changes in the services which could be provided
by Banc One Investment Advisors, the Board of Trustees of the Portfolios would
review the Portfolios' relationship with Banc One Investment Advisors and
consider taking all action necessary in the circumstances.

         Should future legislative, judicial, or administrative action prohibit
or restrict the proposed activities of BANK ONE CORPORATION subsidiary banks or
their correspondent banks in connection with customer purchases of Shares of the
Trust, these banks might be required to alter materially or discontinue the
services offered by them to Customers. It is not anticipated, however, that any
change in the Portfolios' method of operations would affect its net asset value
per Share or result in financial losses to any customer.

PORTFOLIO TRANSACTIONS

         Pursuant to the Advisory Agreement, Banc One Investment Advisors
determines, subject to the general supervision of the Board of Trustees of the
Portfolios and in accordance with each Portfolio's investment objective and
restrictions, which securities are to be purchased and sold by each such
Portfolio and which brokers are to be eligible to execute its portfolio
transactions. Purchases and sales of portfolio securities with respect to the
Bond Portfolios usually are principal transactions in which portfolio securities
are purchased directly from the issuer or from an underwriter or market maker
for the securities. Purchases from underwriters of portfolio securities include
a commission or concession paid by the issuer to the underwriter and purchases
from dealers serving as market makers may include the spread between the bid and
asked price. Transactions on stock exchanges (other than certain foreign stock
exchanges) involve the payment of negotiated brokerage commissions. Transactions
in the over-the-counter market are generally principal transactions with
dealers. With respect to the over-the-counter market, the Portfolios, where
possible, will deal directly with the dealers who make a market in the
securities involved except in those circumstances where better price and
execution are available elsewhere. While Banc One Investment Advisors generally
seeks competitive spreads or commissions, the Portfolios may not necessarily pay
the lowest spread or commission available on each transaction, for reasons
discussed below. During each of the past three fiscal years, the brokerage
commissions paid by the Portfolios were as follows:
                                       40

<PAGE>   91
   
<TABLE>
<CAPTION>
                  Portfolio                                   Aggregate Brokerage Commissions
                                                              1998                   1997                   1996
                                                              ----                   ----                   ----
<S>                                                         <C>                  <C>                     <C>
         Balanced Portfolio                                   $47,608              $34,413                 $12,571

         Large Cap Growth Portfolio                          $109,720              $40,915                 $29,546 

         Equity Index Portfolio                                $6,217                 NA*                     NA*

         Diversified Equity Portfolio                         $76,844              $46,091                 $21,983

         Mid Cap Growth Portfolio                             $92,962             $125,008                 $98,102

         Diversified Mid Cap Portfolio                        $21,501              $19,787                 $19,819

         Mid Cap Value Portfolio                              $17,896              $16,891                    NA**
</TABLE>
    

   
         * The Equity Index Portfolio commenced operations of May 1, 1998.

        ** The Mid Cap Value Portfolio commenced operations on May 1, 1997.
    

As of December 31, 1998, the following Portfolios held investments in securities
of their regular broker-dealers as follows:

<TABLE>
<CAPTION>
                                                                     SHARES OR                         
        PORTFOLIO                      SECURITY                   PRINCIPAL AMOUNT                    VALUE
        ---------                      --------                   ----------------                    -----
<S>                                   <C>                        <C>                               <C>
      Balanced Portfolio              Bear Stearns                         4,220                   $  157,722
                                      Morgan Stanley                       8,120                   $  576,520
                                      Goldman Sachs                   $  300,000                   $  317,563
                                      Lehman Brothers                 $1,353,206                   $1,353,206

      Mid Cap Growth Portfolio        Lehman Brothers                 $8,671,517                   $8,671,517

      Large Cap Growth Portfolio      Morgan Stanley Dean
                                        Witter & Co.                         100                   $    7,100
                                      Prudential Securities           $1,000,000                   $1,000,000
                                      Lehman Brothers                 $3,330,837                   $3,330,837

      Equity Index Portfolio          Bear Stearns                           200                   $    7,475
                                      Lehman Brothers                        200                   $    8,813
                                      Lehman Brothers                 $  138,974                   $  138,974
                                      Merrill Lynch                          500                   $   33,375
                                      Morgan Stanley Dean
                                        Witter & Co.                         800                   $   56,800
</TABLE>

         Allocation of transactions, including their frequency, to various
dealers is determined by Banc One Investment Advisors with respect to the
Portfolios based on its best judgment and in a manner deemed fair and reasonable
to Shareholders. The primary consideration is prompt execution of orders in an
effective manner at the most favorable price. Subject to this consideration,
dealers who provide supplemental investment research to Banc One Investment
Advisors may receive orders for transactions by the Portfolios. Information so
received is in addition to and not in lieu of services required to be performed
by Banc One Investment Advisors and does not reduce the advisory fees payable to
Banc One Investment Advisors. Such information may be useful to Banc One
Investment Advisors in serving both the Portfolios and other clients and,
conversely, supplemental information obtained by the placement of business of
other clients may be useful to Banc One Investment Advisors in carrying out its
obligations to the Portfolios.

         The Portfolios will not execute portfolio transactions through, acquire
portfolio securities issued by, make savings deposits in, or enter into
repurchase or reverse repurchase agreements with Banc One Investment Advisors or
its affiliates except as may be permitted under the Investment Company Act of
1940, and will not give preference to correspondents of BANK ONE CORPORATION
subsidiary banks with respect to such transactions, securities, savings
deposits, repurchase agreements, and reverse repurchase agreements.

         Investment decisions for each Portfolio are made independently from
those for the other Portfolios or any other investment company or account
managed by Banc One Investment Advisors. Any such other investment company or
account may also invest in the same securities as the Portfolios. When a
purchase or sale of the same security is made at substantially the same time on
behalf of a given Portfolio and another Portfolio, investment company or account
the transaction will be averaged as to price, and available investments
allocated as to amount, in a manner which Banc One Investment Advisors believes
to be equitable to the Portfolio(s) and such other investment company or
account. In some instances, this investment procedure may adversely affect the
price paid or received by a Portfolio or the size of the position obtained by a
Portfolio. To the extent permitted by law, Banc One Investment Advisors may
aggregate the securities to be sold or purchased by it for a Portfolio with
those to be sold or purchased by it for other Portfolios or for other investment
companies or accounts in order to obtain best execution. As provided by the
Advisory Agreement, in making investment recommendations for the Portfolios,
Banc One Investment Advisors will not inquire or take into consideration whether
an issuer of securities proposed for purchase or sale by the Portfolios is a
customer of Banc One Investment Advisors or its parent or subsidiaries or
affiliates and, in dealing with its commercial customers, Banc One Investment
Advisors and its parent, subsidiaries, and affiliates will not inquire or take
into consideration whether securities of such customers are held by the
Portfolios.

ADMINISTRATOR

         Nationwide Advisory Services, Inc, Three Nationwide Plaza, Columbus,
Ohio 43215 ("NAS") serves as Administrator (the "Administrator") to each
Portfolio pursuant to an administration agreement with the Trust (the
"Administration Agreement"). (NAS is a wholly owned subsidiary of Nationwide
Life Insurance Company, which in turn is a wholly owned 


                                       41

<PAGE>   92
subsidiary of Nationwide Financial Services, Inc., a holding company of the
Nationwide Insurance Enterprise). The Administrator assists in supervising all
operations of each Portfolio to which it serves (other than those performed
under the Advisory Agreement, and Custodian and Transfer Agency Agreements for
that Portfolio). The Administrator is a broker-dealer registered with the
Securities and Exchange Commission, and is a member of the National Association
of Securities Dealers, Inc.

         Under the Administration Agreement, the Administrator has agreed to
price the portfolio securities of each Portfolio it serves and to compute the
net asset value and net income of the Portfolios on a daily basis, to maintain
office facilities for the Portfolios, to maintain each Portfolio's financial
accounts and records, and to furnish the Portfolios with data processing,
clerical, accounting, and bookkeeping services, and certain other services
required by the Portfolios with respect to each Portfolio. The Administrator
prepares annual and semi-annual reports to the Securities and Exchange
Commission, prepares federal and state tax returns, prepares filings with state
securities commissions, and generally assists in all aspects of the Trust's
operations other than those performed under the Advisory Agreement, and
Custodian and Transfer Agency Agreements. Under the Administration Agreement,
the Administrator may delegate all or any part of its responsibilities.

         Unless sooner terminated, the Administration Agreement between the
Trust and NAS will continue in effect through August 31, 1999. The
Administration Agreement thereafter shall be renewed automatically for
successive one year terms, unless written notice not to renew is given by the
non-renewing party to the other party at least sixty days prior to the
expiration of the then-current term. The Administration Agreement will be
reviewed and ratified at least annually by the Board of Trustees, provided that
the Administration Agreement is also reviewed and ratified by the majority of
the Trustees who are not parties to the Administration Agreement or interested
persons (as defined in the Investment Company Act of 1940) of any party to the
Administration Agreement, by vote cast in person at a meeting called for the
purpose of reviewing and ratifying the Administration Agreement. The
Administration Agreement may be terminated with respect to the Trust only upon
mutual agreement of the parties to the Administration Agreement and for cause
(as defined in the Administration Agreement) by the party alleging cause, on not
less than sixty days' notice by the Board of Trustees or by NFS.

The Administrator is entitled to a fee for its services for each of the
Portfolios (except the Equity Index Portfolio), which is calculated daily and
paid monthly, at the following annualized percentages of average net assets of
the Trust (less the assets of the Equity Index Portfolio):
<TABLE>
<CAPTION>
         Fee                                         Average Net Assets
<S>                                                  <C>
         0.24%                                       less than $250 million
         0.14%                                       greater than $250 million
</TABLE>

For the Equity Index Portfolio, the Administrator is entitled to a fee which is
calculated daily and paid monthly, equal to  0.14% of the Equity Index
Portfolio's average net assets.

         The Administration Agreement provides that the Administrator shall not
be liable for any error of judgment or mistake of law or any loss suffered by
the Portfolios in connection with the matters to which the Administration
Agreement relates, except a loss resulting from willful misfeasance, bad faith,
or gross negligence in the performance of its duties, or from the reckless
disregard by it of its obligations and duties thereunder.

 For the fiscal years ended December 31, 1998, 1997, and 1996, the following
Portfolios paid administration fees as follows:

                                       42


<PAGE>   93
<TABLE>
<CAPTION>
FISCAL YEAR ENDED DECEMBER 31,
- ------------------------------
                                         1998                1997                 1996
- -----------------------------------------------------------------------------------------
<S>                                       <C>             <C>                 <C>
Portfolio                                  Net                 Net                Net
- -----------------------------------------------------------------------------------------
Government Bond Portfolio                 $ 69,649          $42,036             $29,580
- -----------------------------------------------------------------------------------------
Balanced Portfolio                        $158,161          $64,914             $24,178
- -----------------------------------------------------------------------------------------
Mid Cap Growth Portfolio                  $151,830          $86,256             $33,970
- -----------------------------------------------------------------------------------------
Large Cap Growth Portfolio                $330,612         $169,132            $ 70,330
- -----------------------------------------------------------------------------------------
Equity Index Portfolio                    $  7,202              NA*                 NA*
- -----------------------------------------------------------------------------------------
</TABLE>

* The Equity Index Portfolio commenced operations on May 1, 1998.

   
FCNIMCO and BISYS served as co-administrators to the Predecessor Funds of the
Bond Fund, the Diversified Mid Cap Portfolio, the Mid Cap Value Portfolio, and
the Diversified Equity Portfolio. For the fiscal years ended December 31, 1998,
1997, and 1996, the following Portfolios paid investment administration fees to
FCNIMCO and BISYS as follows:
    

FISCAL YEAR ENDED DECEMBER 31,

   
<TABLE>
<CAPTION>
                                            1998                       1997                   1996
- -----------------------------------------------------------------------------------------------------------
Portfolio                            Net      Waived            Net        Waived        Net        Waived
- -----------------------------------------------------------------------------------------------------------
<S>                                 <C>       <C>             <C>          <C>         <C>         <C>
Bond Portfolio                      $71,764   $  --            $23,329     $  --        NA*          NA*
- -----------------------------------------------------------------------------------------------------------
Diversified Mid Cap Portfolio       $22,048   $  --            $15,188     $  --        --          $10,277
- -----------------------------------------------------------------------------------------------------------
Mid Cap Value Portfolio             $27,073   $  --            $ 9,544     $  --        NA*          NA*
- -----------------------------------------------------------------------------------------------------------
Diversified Equity Portfolio        $74,103   $  --            $33,582     $  --        --          $ 8,957
- -----------------------------------------------------------------------------------------------------------
</TABLE>
    

* Commenced operations on May 1, 1997.

SUB-ADMINISTRATOR

     For the period beginning November 14, 1998 and ending March 31, 1999, NAS
served as sub-administrator to the Predecessor Funds and received fees equal to
0.15% of the average net assets of the Predecessor Funds from the Predecessor 
Funds' administrator.

     The Board of Trustees of the Trust has approved a Sub-Administration
Agreement between Banc One Investment Advisors and NAS that will be effective on
or after April 1, 1999. Under the proposed contract, Banc One Investment
Advisors will be entitled to a fee equal to 0.05% of the average net assets of
the Trust.

CUSTODIANS, SUB-CUSTODIAN AND TRANSFER AGENT

     Custodian. State Street Bank and Trust Company ( "State Street"), P.O. Box
8500, Boston, MA 02266-8500 acts as custodian for the Portfolios under a
Custodian Agreement with the Trust (the "Custodian Agreement"). Under the
Custodian Agreement, State Street:

     (i)  maintains a separate account or accounts in the name of each
          Portfolio;
     (ii) makes receipts and disbursements of money on behalf of each Portfolio;
     (iii) collects and receives all income and other payments and distributions
          on account of the Portfolios' portfolio securities; responds to
          correspondence from security brokers and others relating to its
          duties; and
     (iv) makes periodic reports to the Board of Trustees concerning the
          Portfolios' operations.


                                       43

<PAGE>   94
State Street may, at its own expense, open and maintain a sub-custody account or
accounts on behalf of the Trust, provided that State Street shall remain liable
for the performance of all of its duties under the Custodian Agreements.

   
NBD ("NBD"), an indirect wholly-owned subsidiary of BANK ONE CORPORATION, served
as Custodian for the Predecessor Funds pursuant to a Custodian Agreement. 
    

         Sub-Custodian. Bank One Trust Company, N.A. (the "Sub-Custodian")
serves as Sub-Custodian in connection with the Trust's securities lending
activities, pursuant to a Subcustodian Agreement, dated as of June 11, 1998
between the Trust, State Street and Bank One Trust Company and a Securities
Lending Agreement, dated as of June 15, 1998 between the Trust, Banc One
Investment Advisors, and the Subcustodian. The Sub-Custodian is an indirect
subsidiary of BANK ONE CORPORATION and an affiliate of Banc One Investment
Advisors. The Sub-Custodian is entitled to a fee from the Trust, which is
calculated on an annual basis and accrued daily, equal to:

     -    .05% of the value of collateral received from the Borrower for each
          securities loan of U.S. Government and Agency Securities; and

     -    .10% of the value of collateral received from the Borrower for each
          loan of equities and corporate bonds.

         Use of Depositories. Rules adopted under the Investment Company Act of
1940 permit the Portfolios to maintain their securities and cash in the custody
of certain eligible banks and securities depositories.

         Transfer Agent and Dividend Disbursing Agent. Nationwide Investors
Services, Inc. ("NIS"), One Nationwide Plaza, Columbus, Ohio, 43215, a
subsidiary of NAS, the Administrator of the Trust, serves as Transfer Agent and
Dividend Disbursing Agent for each Portfolio pursuant to Transfer Agency
Agreement with the Trust (the "Transfer Agency Agreement"). Under the Transfer
Agency Agreement, NIS has agreed to: (i) issue and redeem Shares of the
Portfolios; (ii) address and mail all communications by the Trust to its
Shareholders, including reports to Shareholders, dividend and distribution
notices, and proxy material for its meetings of Shareholders; (iii) respond to
correspondence or inquiries by Shareholders and others relating to its duties;
(iv) maintain Shareholder accounts and certain sub-accounts; and (v) make
periodic reports to the Board of Trustees concerning the Portfolios operations.

EXPERTS

   
Independent Public Accountants. PricewaterhouseCoopers LLP, 100 East Broad
Street, Columbus, Ohio 43215 serves as the independent accountants of the Trust.
For all Portfolios other than the Predecessor Funds, the financial statements
for the fiscal year ended December 31, 1998 have been audited by
PricewaterhouseCoopers LLP. The Financial Statements for the fiscal year ended
December 31, 1998 for the Predecessor Funds to the Bond Portfolio, the
Diversified Mid Cap Portfolio, the Mid Cap Value Portfolio and the Diversified
Equity Portfolio have been audited by Arthur Andersen LLP, 500 Woodward Avenue,
Suite 2700, Detroit, Michigan 48226-3474. (See "Financial Statements" in this
Statement of Additional Information).

Fund Counsel. The law firm of Ropes & Gray, One Franklin Square, 1301 K Street,
N.W., Suite 800 East, Washington, D.C. 20005-3333 is counsel to the Trust.
    

ADDITIONAL INFORMATION

DESCRIPTION OF SHARES

The Trust is a Massachusetts business trust. The Trust's Declaration of Trust
was filed with the Secretary of State of the Commonwealth of Massachusetts on
June 7, 1993 and authorizes the Board of Trustees to issue an unlimited number
of Shares, which are units of beneficial interest, without par value. The
Trust's Declaration of Trust authorizes the Board of Trustees to establish one
or more series of Shares of the Trust, and to classify or reclassify any series
into one or more classes by setting or changing in any one or more respects the
preferences, designations, conversion, or other rights, restrictions, or
limitations as to dividends, conditions of redemption, qualifications, or other
terms applicable to the Shares of such class, subject to those matters expressly
provided for in the 


                                       44

<PAGE>   95
Declaration of Trust, as amended, with respect to the Shares of each series of
the Trust. The Trust presently includes nine series of Shares which represent
interests in the following Portfolios:

         1. Bond Portfolio
         2. Government Bond Portfolio
         3. Balanced Portfolio
         4. Mid Cap Growth Portfolio
         5. Large Cap Growth Portfolio
         6. Equity Index Portfolio
         7. Diversified Equity Portfolio
         8. Diversified Mid Cap Portfolio
         9. Mid Cap Value Portfolio


         The Declaration of Trust may not be amended without the affirmative
vote of a majority of the outstanding shares of the Trust, except that the
Trustees may amend the Declaration of the Trust without the vote or consent of
shareholders to:

         (1) designate series of the Trust;
         (2) change the name of the Trust; or

         (3) supply any omission, cure, correct, or supplement any ambiguous,
defective, or inconsistent provision to conform the Declaration of Trust to the
requirements of applicable federal and state laws or regulations if they deem it
necessary.

         Shares have no pre-emptive or conversion rights. Shares are fully paid
and non-assessable, except as set forth below. When a majority is required, it
means the lesser of 67% or more of the shares present at a meeting when the
holders of more than 50% of the outstanding shares are present or represented by
proxy, or more than 50% of the outstanding shares. Shares have no subscription
or preemptive rights and only those conversion or exchange rights as the Board
of Trustees may grant in its discretion. When issued for payment as described in
the Prospectus and this Statement of Additional Information, the Trust's Shares
will be fully paid and non-assessable. In the event of a liquidation or
dissolution of the Trust, Shares of a Portfolio are entitled to receive the
assets available for distribution belonging to the Portfolio, and a
proportionate distribution, based upon the relative asset values of the
respective Portfolios, of any general assets not belonging to any particular
Portfolio which are available for distribution.

         Rule 18f-2 under the Investment Company Act of 1940 provides that any
matter required to be submitted to the holders of the outstanding voting
securities of an investment company such as the Trust shall not be deemed to
have been effectively acted upon unless approved by the holders of a majority of
the outstanding Shares of each Portfolio affected by the matter. For purposes of
determining whether the approval of a majority of the outstanding Shares of a
Portfolio is required in connection with a matter, a Portfolio is deemed to be
affected by a matter unless it is clear that the interests of each Portfolio in
the matter are identical, or that the matter does not affect any interest of the
Portfolio. Under Rule 18f-2, the approval of an investment advisory agreement or
any change in investment policy would be effectively acted upon with respect to
a Portfolio only if approved by a majority of the outstanding Shares of the
Portfolio. However, Rule 18f-2 also provides that the ratification of
independent public accountants, the approval of principal underwriting
contracts, and the election of Trustees may be effectively acted upon by
Shareholders of the Trust voting without regard to series.

         The Trust may suspend the right of redemption only under the following
unusual circumstances:

          (i) when the New York Stock Exchange is closed (other than weekends
and holidays) or trading is restricted;
                                       45
<PAGE>   96
         (ii) when an emergency exists, making disposal of portfolio securities
or the valuation of net assets not reasonably practicable; or

         (iii) during any period when the Securities and Exchange Commission has
by order permitted a suspension of redemption for the protection of
shareholders.

SHAREHOLDER AND TRUSTEE LIABILITY

         Under Massachusetts law, holders of units of beneficial interest in a
business trust may, under certain circumstances, be held personally liable as
partners for the obligations of the Trust. However, the Trust's Declaration of
Trust provides that Shareholders shall not be subject to any personal liability
for the obligations of the Trust, and that every written agreement, obligation,
instrument, or undertaking made by the Trust shall contain a provision to the
effect that the Shareholders are not personally liable thereunder. The
Declaration of Trust provides for indemnification out of the trust property of
any Shareholder held personally liable solely by reason of his being or having
been a Shareholder. The Declaration of Trust also provides that the Trust shall,
upon request, assume the defense of any claim made against any Shareholder for
any act or obligation of the Trust, and shall satisfy any judgment thereon.
Thus, the risk of a Shareholder incurring financial loss on account of
Shareholder liability is limited to circumstances in which the Trust itself
would be unable to meet its obligations.

         The Declaration of Trust states further that no Trustee, officer, or
agent of the Trust shall be personally liable in connection with the
administration or preservation of the assets of the trust or the conduct of the
Trust's business; nor shall any Trustee, officer, or agent be personally liable
to any person for any action or failure to act except for his own bad faith,
willful misfeasance, gross negligence, or reckless disregard of his duties. The
Declaration of Trust also provides that all persons having any claim against the
Trustees or the Trust shall look solely to the assets of the Trust for payment.

SHAREHOLDERS

         All Shares of the Portfolios will be purchased by insurance company
separate accounts to fund variable annuity and variable life contracts
("Insurance Contracts"). For information concerning the purchase and redemption
of Shares by Separate Accounts, you should refer to the prospectus that you
received when you purchased your variable life or variable insurance contract.

   
         As of March 17, 1999, the Trust believes that no Shareholder owned
beneficially more than 25% of the outstanding shares of any Portfolio of the
Trust.
    


                                       46

<PAGE>   97

                                 5% SHAREHOLDERS

In addition, as of March 17, 1999, the following persons were the owners of
more than 5% of the outstanding Shares of the following Portfolios:

   
<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------
                                                                               PERCENT      TYPE OF
NAME AND ADDRESS                          PORTFOLIO                            OWNERSHIP    OWNERSHIP
- ----------------------------------------------------------------------------------------------------
<S>                                       <C>                                 <C>          <C>
Nationwide VA Separate Account C          Government Bond Portfolio               86%      Record
Nationwide Life and
Annuity Insurance Company  
CO 68 c/o IPO 
PO Box 182029 
Columbus, Ohio 43218-2029

- ----------------------------------------------------------------------------------------------------
Nationwide Life and Annuity Insurance     Government Bond Portfolio               14%     Record &
Company                                                                                   Beneficial
CO 68 c/o IPO
PO Box 182029 
Columbus, Ohio 43218-2029
- ----------------------------------------------------------------------------------------------------
</TABLE>
    


                                       47

<PAGE>   98
   
<TABLE>
<S>                                      <C>                                  <C>        <C>
- ----------------------------------------------------------------------------------------------------
Nationwide VA Separate Account C
Nationwide Life and Annuity Insurance     Balanced Portfolio                      98%        Record
Company 
CO 68 c/o IPO 
PO Box 182029 
Columbus, Ohio 43218-2029
- ----------------------------------------------------------------------------------------------------
Nationwide VA Separate Account C
Nationwide Life and Annuity Insurance     Mid Cap Growth Portfolio                99%        Record
Company
CO 68 c/o IPO
PO Box 182029
Columbus, Ohio  43218-2029
- ----------------------------------------------------------------------------------------------------
Nationwide VA Separate Account C
Nationwide Life and Annuity Insurance     Large Cap Growth Portfolio              96%        Record
Company
CO 68 c/o IPO 
PO Box 182029 
Columbus, Ohio 43218-2029
- ----------------------------------------------------------------------------------------------------
Nationwide Life Insurance Company         Equity Index Portfolio                  14%        Record
Nationwide Life Insurance Co Seed Account                                                & Beneficial
One Nationwide Plaza
c/o Investment Accounting
Attn Pam Smith 1-32-05
Columbus, Ohio  43215-2239
- ----------------------------------------------------------------------------------------------------
Nationwide VA Separate Account C
Nationwide Life and Annuity Insurance     Equity Index Portfolio                  82%        Record
Company  
CO 68 c/o IPO 
PO Box 182029 
Columbus, Ohio 43218-2029
- ----------------------------------------- --------------------------------------- ------------------- -------------------
</TABLE>
    

   
         As of March 17, 1999, the Trust believes that the trustees and
officers of the Trust, as a group, owned less than 1% of the shares of any
Portfolio of the Trust.
    

CALCULATION OF PERFORMANCE DATA

         The Portfolios may quote their performance in various ways. All
performance information supplied by the Portfolios in advertising is historical
and is not intended to indicate future returns. The Portfolios' share prices,
yields and total returns fluctuate in response to market conditions and other
factors, and the value of Portfolio shares when redeemed may be more or less
than their original cost.


                                       48

<PAGE>   99
         From time to time, Banc One Investment Advisors and/or Administrator
may voluntarily waive all or a portion of its respective fee and absorb certain
expenses for the Portfolios. Performance information contained in advertisements
includes the effect of deducting a Portfolio's expenses, but may not include
charges and expenses attributable to the variable annuity, variable life or
pension/retirement plan through which you have made your investment (a "Funding
Vehicle"). Because the Portfolios' shares may only be purchased through a
Funding Vehicle, you should carefully review your insurance contracts for
information on fees and expenses associated with the Funding Vehicle through
which your shares have been purchased. Excluding such fees and expenses from the
Portfolios' performance quotations has the effect of increasing the performance
quoted.

         A Portfolio's respective total return and average annual total return
is determined by calculating the change in the value of a hypothetical $1,000
investment in a Portfolio for each of the periods shown. Total return for a
Portfolio is computed by determining the average annual compounded rate of
return over the applicable period that would equate the initial amount invested
to the ending redeemable value of the investment. The ending redeemable value
includes dividends and capital gain distributions reinvested at net asset value.
The resulting percentages indicated the positive or negative investment results
that an investor would have experienced from changes in net asset value and
reinvestment of dividends and distributions.

         Performance will fluctuate from time to time and is not necessarily
representative of future results. Accordingly, a Portfolio's performance may not
provide for comparison with bank deposits or other investments that pay a fixed
return for a stated period of time. Performance is a function of a Portfolio's
quality, composition, and maturity, as well as expenses allocated to the
Portfolio.

         Statistical and performance information compiled and maintained by CDA
Technologies, Inc. ("CDA") and Interactive Data Corporation may also be used.
CDA is a performance evaluation service that maintains a statistical data base
of performance, as reported by a diverse universe of independently-managed
mutual Portfolios. Interactive Data Corporation is a statistical access service
that maintains a data base of various industry indicators, such as historical
and current price/earning information and individual stock and fixed income
price and return information.

         Current interest rate and yield information on government debt
obligations of various durations, as reported weekly by the Federal Reserve
(Bulletin H. 15), may also be used. Current rate information on municipal debt
obligations of various durations, as reported daily by the Bond Buyer, may also
be used. The Bond Buyer is published daily and is an industry-accepted source
for current municipal bond market information.

         Comparative information on the Consumer Price Index may also be
included. This Index, as prepared by the U.S. Bureau of Labor Statistics, is the
most commonly used measure of inflation. It indicates the cost fluctuations of a
representative group of consumer goods. It does not represent a return on
investment. From time to time, all of the Portfolios may quote actual total
return performance in advertising and other types of literature compared to
results reported by the Dow Jones Industrial Average.

         The Dow Jones Industrial Average is an industry-accepted unmanaged
index of generally conservative securities used for measuring general market
performance. The performance reported will reflect the reinvestment of all
distributions on a quarterly basis and market price fluctuations. The index does
not take into account any brokerage commissions or other fees. Comparative
information on the Consumer Price Index may also be included.

         The Portfolios may also promote the yield and/or total return
performance and use comparative performance information computed by and
available from certain industry and general market research and publications,
such as Lipper Analytical Services, Inc.

         The Portfolios may quote actual yield and/or total return performance
in advertising and other types of literature compared to indices or averages of
alternative financial products available to prospective investors. The
performance comparisons may include the average return of various bank
instruments, some of which may carry certain return guarantees offered by
leading banks and thrifts as monitored by Bank Rate Monitor, and those of
corporate bond and government security price indices of various durations.
Comparative information on the Consumer Price Index may also be included.

                                       49
<PAGE>   100

         The Portfolios may also use comparative performance information
computed by and available from certain industry and general market research and
publications, as well as statistical and performance information, compiled and
maintained by CDA and Interactive Data Corporation.

         The Portfolios may also use current interest rate and yield information
on government debt obligations of various durations, as reported weekly by the
Federal Reserve (Bulletin H. 15). In addition, current rate information on
municipal debt obligations of various durations, as reported daily by the Bond
Buyer, may also be used.

          The average annual total return for the one year ended December 31, 
1998 and for the life of each Portfolio was as follows:

<TABLE>
<CAPTION>
                                                                       Date Portfolio                          
                                            One Year       Life      Commenced Operation
                                            --------       ----      -------------------
<S>                                       <C>              <C>        <C>
         Bond Portfolio                    8.66%           10.21%         5/1/97
         Government Bond Portfolio         7.32%            7.87%         8/1/94
         Balanced Portfolio               19.09%           16.32%         8/1/94
         Mid Cap Growth Portfolio         38.82%           23.13%         8/1/94
         Large Cap Growth Portfolio       41.27%           25.34%         8/1/94
         Equity Index Portfolio               --           10.52%         5/1/98
         Diversified Equity Portfolio     13.10%           20.31%         3/30/95
         Diversified Mid Cap Portfolio     4.91%           17.47%         3/30/95
         Mid Cap Value Portfolio          -3.31%            7.65%         5/1/97
</TABLE>


         The 30 day yield for the Portfolios listed below is as follows:

                                      30 Day Yield @ 12/31/98

         Bond Portfolio                                      4.89%
         ---------------------------------------------------------
         Government Bond Portfolio                           5.24%
         ---------------------------------------------------------
         Balanced Portfolio                                  1.99%
         ---------------------------------------------------------


MISCELLANEOUS

         The Trust is not required to hold a meeting of Shareholders for the
purpose of annually electing Trustees except that

          (i) the Trust is required to hold a Shareholders' meeting for the
election of Trustees at such time as less than a majority of the Trustees
holding office have been elected by Shareholders, and

         (ii) if, as a result of a vacancy on the Board of Trustees, less than
two-thirds of the Trustees holding office have been elected by the Shareholders,
that vacancy may only be filled by a vote of the Shareholders. In addition,
Trustees may be removed from office by a written consent signed by the holders
of Shares representing two-thirds of the outstanding Shares of the Trust at a
meeting duly called for the purpose. This meeting shall be held upon the written
request of the holders of Shares representing not less than 20% of the
outstanding Shares of the Trust. Except as set forth above, the Trustees may
continue to hold office and may appoint successor Trustees.

         As used in the Portfolios' Prospectus and in this Statement of
Additional Information, "assets belonging to a Portfolio" means the
consideration received by the Trust upon the issuance or sale of Shares in that
Portfolio, together with all income, earnings, profits, and proceeds derived
from the investment thereof, including any proceeds from the sale, exchange, or
liquidation of such investments, and any Portfolios or payments derived from any
reinvestment of such proceeds, and any general assets of the Trust not readily
identified as belonging to a particular Portfolio that are allocated to that
Portfolio by the Board of Trustees. The Board of Trustees may allocate such
general assets in any manner it deems fair and equitable. It is anticipated that
the factor that will be used by the Board of Trustees in making allocations of
general assets to particular Portfolios will be the relative net asset values of
the respective Portfolios at the time of allocation. Each Portfolio's direct
liabilities and expenses will be charged to the assets belonging to that
Portfolio. Each Portfolio will also be charged in proportion to its relative net
asset value for the general liabilities and expenses of the Trust. The timing of
allocations of general assets and general liabilities and expenses of the Trust
                                       50


<PAGE>   101
to particular Portfolios will be determined by the Board of Trustees of the
Trust and will be in accordance with generally accepted accounting principles.
Determinations by the Board of Trustees of the Trust as to the timing of the
allocation of general liabilities and expenses and as to the timing and
allocable portion of any general assets with respect to a particular Portfolio
are conclusive.

         As used in the Portfolios' Prospectuses and in this Statement of
Additional Information, a "vote of a majority of the outstanding Shares" of the
Trust, a particular Portfolio, or a particular class of Shares of a Portfolio,
means the affirmative vote of the lesser of (a) more than 50% of the outstanding
Shares of the Trust, such Portfolio, or such class of Shares of such Portfolio,
or (b) 67% or more of the Shares of the Trust, such Portfolio, or such class of
Shares of such Portfolio present at a meeting at which the holders of more than
50% of the outstanding Shares of the Trust, such Portfolio, or such class of
Shares of such Portfolio are represented in person or by proxy.

         The Trust is registered with the Securities and Exchange Commission as
a management investment company. Such registration does not involve supervision
by the Commission of the management or policies of the Trust.

         The Prospectus and this Statement of Additional Information omit
certain information contained in the Registration Statement filed with the
Securities and Exchange Commission. Copies of such information may be obtained
from the Commission upon payment of the prescribed fee.

         The Prospectus and this Statement of Additional Information are not an
offering of the securities herein described in any state in which such offering
may not lawfully be made. No salesman, dealer, or other person is authorized to
give any information or make any representation other than those contained in
the Prospectus and Statement of Additional Information.

   
    


                                       51

<PAGE>   102

PEGASUS VARIABLE FUNDS


STATEMENTS OF ASSETS AND LIABILITIES
December 31, 1998



<TABLE>
<CAPTION>
                                                                              Mid-Cap                     Intrinsic
                                                             Growth and     Opportunity      Growth         Value         Bond    
                                                             Value Fund        Fund           Fund          Fund          Fund 
<S>                                                          <C>            <C>            <C>           <C>           <C>       
 ASSETS:
 Investments in securities at value (Note 2)                 $57,585,080    $17,485,201    $25,147,781   $18,527,487   $53,487,003
 Repurchase agreements at cost (Note 2)                        1,675,000        598,000             --     3,981,000     6,963,000
  Total Investments (cost $50,283,752, $15,373,376,
  $15,841,827, $22,909,793, $58,145,667)                      59,260,080     18,083,201     25,147,781    22,508,487    60,450,003 
    
 Cash                                                             56,792         64,643             --         8,391           958 
 Receivable for investment securities sold                       249,984         32,130      1,488,727            --         8,010 
 Interest and dividends receivable                                49,269          8,845         15,514        17,923       477,374 
 Receivable from investment advisor                                5,158         11,115          7,447         9,296         5,097 
 Deferred organization expenses (Note 2)                           4,094          4,137          4,137            --            -- 
    TOTAL ASSETS                                              59,625,377     18,204,071     26,663,606    22,544,097    60,941,442 
 LIABILITIES
 Cash overdraft                                                       --             --      1,125,400            --            -- 
 Payable for investment securities purchased                          --             --        308,990            --            -- 
 Accrued investment advisory fees                                 29,679          8,724         13,071        10,549        19,023 
 Accrued administration fees                                       7,420          2,181          3,268         2,637         7,134 
 Accrued custodial fees                                            3,861          3,267          5,323         3,173         2,448 
 Accrued professional fees                                        18,988         21,902         21,618        18,933        16,995 
 Accrued printing fees                                             4,285          7,219          7,654         6,489         3,454 
 Other accrued expenses                                              785            911          1,362           960           832 
    TOTAL LIABILITIES                                             65,018         44,204      1,486,686        42,741        49,886 
    NET ASSETS                                               $59,560,359    $18,159,867    $25,176,920   $22,501,356   $60,891,556 
 Net assets consist of:
 Capital shares (unlimited number of shares authorized $.10   
  per share)                                                 $   334,541    $   123,044    $   117,095   $   210,305   $   567,692
 Additional paid-in-capital                                   49,941,245     15,294,125     13,897,590    22,781,563    58,031,770 
 Accumulated undistributed net investment income                   1,427            994          2,573            --            -- 
 Accumulated undistributed (distributions in excess of)
  realized gain (loss)                                           306,818         31,879      1,853,708       (89,206)      (12,242)
  
 Net unrealized appreciation (depreciation) on investments     8,976,328      2,709,825      9,305,954      (401,306)    2,304,336 
    NET ASSETS                                               $59,560,359    $18,159,867    $25,176,920   $22,501,356   $60,891,556 
 Shares of capital stock outstanding                           3,345,408      1,230,435      1,170,945     2,103,050     5,676,924 
 NET ASSET VALUE and redemption price per share              $     17.80    $     14.76    $     21.50   $     10.70   $     10.73 
</TABLE>


                 See accompanying notes to financial statements.


<PAGE>   103




PEGASUS VARIABLE FUNDS


STATEMENTS OF OPERATIONS
For the Year Ended December 31, 1998



<TABLE>
<CAPTION>
                                                                                               Mid-Cap                  
                                                                           Growth and         Opportunity      Growth
                                                                           Value Fund            Fund           Fund
<S>                                                                        <C>                 <C>          <C>         
 INVESTMENT INCOME:
  Dividend income                                                          $  675,456          $ 96,578     $  117,327  
  Interest income                                                             132,794            28,472         27,006  
    TOTAL INVESTMENT INCOME                                                   808,250           125,050        144,333  
EXPENSES:
  Investment advisory fees                                                    296,413            88,190        123,263  
  Administration fees                                                          74,103            22,048         30,816  
  Professional fees                                                            56,598            48,840         46,378  
  Custodial fees                                                               32,222            25,699         17,569  
  Amortization of deferred organization cost                                    9,335             9,276          9,276  
  Printing expense                                                             23,180            17,738         13,427  
  Other                                                                        10,566            10,565         11,007  
    TOTAL EXPENSES BEFORE WAIVERS                                             502,417           222,356        251,736  
    Less waivers                                                              (33,240)          (82,956)       (56,564) 
    NET EXPENSES                                                              469,177           139,400        195,172  
 NET INVESTMENT INCOME (LOSS)                                              $  339,073          $(14,350)    $  (50,839) 
                                                                                                                        
 NET REALIZED AND UNREALIZED GAIN (LOSS):
  Net realized gain on investments                                         $1,444,929          $311,810     $1,853,797  
  Net change in unrealized appreciation (depreciation) on investments      $4,450,770           551,852      5,582,309  
                                                                                                                        
 NET REALIZED AND UNREALIZED GAIN (LOSS)                                    5,895,699           863,662      7,436,106  
 NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS           $6,234,772          $849,312     $7,385,267  
</TABLE>




<TABLE>
<CAPTION>
                                                                            Intrinsic
                                                                            Value Fund     Bond Fund 
                                                                           
<S>                                                                        <C>            <C>        
 INVESTMENT INCOME:
  Dividend income                                                          $   428,435    $      --  
  Interest income                                                               85,054     2,920,779 
    TOTAL INVESTMENT INCOME                                                    513,489     2,920,779 
EXPENSES:
  Investment advisory fees                                                     108,293       191,371 
  Administration fees                                                           27,073        71,764 
  Professional fees                                                             50,303        53,067 
  Custodial fees                                                                19,005        30,024 
  Amortization of deferred organization cost                                        --            --  
  Printing expense                                                              13,659        27,976 
  Other                                                                         10,595        11,178 
    TOTAL EXPENSES BEFORE WAIVERS                                              228,928       385,380 
    Less waivers                                                               (57,553)      (26,975)
    NET EXPENSES                                                               171,375       358,405 
 NET INVESTMENT INCOME (LOSS)                                              $   342,114    $2,562,374
                                                                                
 NET REALIZED AND UNREALIZED GAIN (LOSS):
  Net realized gain on investments                                         $   283,047    $   44,671 
                                                                           
  Net change in unrealized appreciation (depreciation) on investments       (1,346,908)    1,451,053 
                                                                                        
 NET REALIZED AND UNREALIZED GAIN (LOSS)                                    (1,063,861)    1,375,352 
 NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS           $  (721,747)   $4,058,098
</TABLE>




                 See accompanying notes to financial statements.


<PAGE>   104



PEGASUS VARIABLE FUNDS


STATEMENTS OF CHANGES IN NET ASSETS


<TABLE>
<CAPTION>
                                                         Growth and Value Fund            Mid-Cap Opportunity         
                                                       Year Ended      Year Ended      Year Ended      Year Ended     
                                                       December 31,    December 31,    December 31,    December 31,    
                                                          1998            1997             1998            1997       
<S>                                                    <C>             <C>             <C>             <C>            
 INCREASE (DECREASE) IN NET ASSETS:
 FROM OPERATIONS:
  Net investment income (loss)                         $   339,073     $   206,522     $   (14,350)    $     4,129    
  Net realized gains                                     1,444,929         837,720         311,810       1,743,002    
  Net change in unrealized appreciation
    (depreciation) of investments                        4,450,770       3,665,139         551,852         725,115    
  Net increase (decrease) in net assets resulting            
    from operations                                      6,234,772       4,709,381         849,312       2,472,246
 DISTRIBUTIONS TO SHAREHOLDERS:
  From net investment income                              (355,811)       (195,276)             --          (3,201)   
  In excess of net investment income                            --              --              --              --     
  From net realized gains from investment transactions  (1,328,447)       (785,704)       (355,970)     (1,732,223)   
  In excess of net realized gains                               --              --              --              --     
  Decrease in net assets from distributions to          
    shareholders                                        (1,684,258)       (980,980)       (355,970)     (1,735,424)   
 CAPITAL SHARE TRANSACTIONS:
  Proceeds from sale of shares                          16,305,399      26,172,441       6,254,470       4,779,295    
  Net asset value of shares issued to shareholders
    from reinvestment of distributions                   1,684,258         980,980         355,970       1,735,424    
                                                        17,989,657      27,153,421       6,610,440       6,514,719    
  Less: payments for shares redeemed                    (1,685,009)       (779,182)       (612,145)     (4,798,971)   
  Net increase in net assets from capital share         
    transactions                                        16,304,648      26,374,239       5,998,295       1,715,748    
 NET INCREASE IN NET ASSETS                             20,855,162      30,102,640       6,491,637       2,452,570    
 NET ASSETS:
  Beginning of period                                   38,705,197       8,602,557      11,668,230       9,215,660    
  End of period                                        $59,560,359     $38,705,197     $18,159,867     $11,668,230    
 CAPITAL SHARE TRANSACTIONS:
  Shares sold                                              955,005       1,722,895         435,554         318,480    
  Shares issued in reinvestment of distributions to        
    shareholders                                           102,324          61,654          25,066         120,944    
                                                         1,057,329       1,784,549         460,620         439,424    
  Less: shares redeemed                                    (97,531)        (50,917)        (41,697)       (312,599)   
 NET INCREASE IN SHARES OUTSTANDING                        959,798       1,733,632         418,923         126,825    
 CAPITAL SHARES:
  Beginning of period                                    2,385,610         651,978         811,512         684,687    
  End of period                                          3,345,408       2,385,610       1,230,435         811,512    
</TABLE>



<TABLE>
<CAPTION>
                                                              Growth Fund                Intrinsic Value Fund     
                                                      Year Ended      Year Ended      Year Ended      Year Ended  
                                                      December 31,    December 31,    December 31,    December 31,
                                                          1998            1997            1998           1997(1)  
<S>                                                   <C>             <C>             <C>             <C>         
 INCREASE (DECREASE) IN NET ASSETS:
 FROM OPERATIONS:
  Net investment income (loss)                        $   (50,839)    $    28,340     $   342,114     $   115,690 
  Net realized gains                                    1,853,797       1,211,616         283,047         123,169 
  Net change in unrealized appreciation
    (depreciation) of investments                       5,582,309       1,819,220      (1,346,908)        945,602 
  Net increase (decrease) in net assets resulting        
    from operations                                     7,385,267       3,059,176        (721,747)      1,184,461
 DISTRIBUTIONS TO SHAREHOLDERS:
  From net investment income                                   --         (26,849)       (345,025)       (112,779)
  In excess of net investment income                           --              --          (1,651)             -- 
  From net realized gains from investment transactions    (44,524)     (1,140,567)       (358,921)        (47,295)
  In excess of net realized gains                              --              --         (87,555)             -- 
  Decrease in net assets from distributions to        
    shareholders                                          (44,524)     (1,167,416)       (793,152)       (160,074)
 CAPITAL SHARE TRANSACTIONS:
  Proceeds from sale of shares                          6,423,743       6,512,260       9,477,532      13,088,467 
  Net asset value of shares issued to shareholders
    from reinvestment of distributions                     44,524       1,167,416         793,152         160,074 
                                                        6,468,267       7,679,676      10,270,684      13,248,541 
  Less: payments for shares redeemed                   (4,472,001)     (5,273,546)       (179,987)       (347,370)
  Net increase in net assets from capital share       
    transactions                                        1,996,266       2,406,130      10,090,697      12,901,171 
 NET INCREASE IN NET ASSETS                             9,337,009       4,297,890       8,575,798      13,925,558 
 NET ASSETS:
  Beginning of period                                  15,839,911      11,542,021      13,925,558              -- 
  End of period                                       $25,176,920     $15,839,911     $22,501,356     $13,925,558 
 CAPITAL SHARE TRANSACTIONS:
  Shares sold                                             367,989         428,650         834,191       1,224,500 
  Shares issued in reinvestment of distributions to   
    shareholders                                            2,611          74,931          77,627          14,079 
                                                          370,600         503,581         911,818       1,238,579 
  Less: shares redeemed                                  (229,006)       (343,565)        (16,644)        (30,703)
 NET INCREASE IN SHARES OUTSTANDING                       141,594         160,016         895,174       1,207,876 
 CAPITAL SHARES:
  Beginning of period                                   1,029,351         869,335       1,207,876              -- 
  End of period                                         1,170,945       1,029,351       2,103,050       1,207,876 
</TABLE>




<TABLE>
<CAPTION>
                                                                Bond Fund 
                                                       Year Ended      Period Ended 
                                                       December 31,    December 31,  
                                                           1998            1997(1)
<S>                                                    <C>             <C>        
 INCREASE (DECREASE) IN NET ASSETS:
 FROM OPERATIONS:
  Net investment income (loss)                         $ 2,562,374     $   921,773
  Net realized gains                                        44,671          20,905
  Net change in unrealized appreciation
    (depreciation) of investments                        1,451,053         853,283
    
  Net increase (decrease) in net assets resulting        
    from operations                                      4,058,098       1,795,961
 DISTRIBUTIONS TO SHAREHOLDERS:
  From net investment income                            (2,606,134)       (915,681)
  In excess of net investment income                            --              --   
  From net realized gains from investment transactions     (44,752)        (20,824)
  In excess of net realized gains                          (12,242)             --   
  Decrease in net assets from distributions to        
    shareholders                                          (2,663,128)       (936,505)
 CAPITAL SHARE TRANSACTIONS:
  Proceeds from sale of shares                          28,019,206      33,072,130
  Net asset value of shares issued to shareholders
    from reinvestment of distributions                   2,663,128         936,505
                                                        30,682,334      34,008,635
  Less: payments for shares redeemed                    (5,415,618)       (638,221)
  Net increase in net assets from capital share       
    transactions                                        25,266,716      33,370,414
 NET INCREASE IN NET ASSETS                             26,661,686      34,229,870
 NET ASSETS:
  Beginning of period                                   34,229,870              --
  End of period                                        $60,891,556     $34,229,870
 CAPITAL SHARE TRANSACTIONS:
  Shares sold                                            2,630,322       3,249,652
  Shares issued in reinvestment of distributions to   
    shareholders                                           269,941          90,681
                                                         2,900,263       3,340,333
  Less: shares redeemed                                   (502,456)        (61,216)
 NET INCREASE IN SHARES OUTSTANDING                      2,397,807       3,279,117
 CAPITAL SHARES:
  Beginning of period                                    3,279,117              -- 
  End of period                                          5,676,924       3,279,117
</TABLE>

(1)  For the period May 1, 1997 (commencement of operations) through December
     31, 1997.



                 See accompanying notes to financial statements.


<PAGE>   105

                     PEGASUS VARIABLE GROWTH AND VALUE FUND
                                        
                            PORTFOLIO OF INVESTMENTS
                               December 31, 1998



<TABLE>
<CAPTION>
                                                              
                 Description                      Shares     Market Value
- -----------------------------------------------   ------     ------------
<S>                                               <C>        <C>
COMMON STOCK -- 96.68%
   Aerospace/Defense -- 2.04%
     Boeing Co.................................    24,300     $ 792,787
     Lockheed Martin Corp......................     5,000       423,750
                                                              ---------
                                                              1,216,537
                                                              ---------
   Banks -- 7.60%
     BankAmerica Corp..........................    18,900     1,136,362
     First Union Corp..........................    15,100       918,269
     National City Corp........................    13,600       986,000
     Wells Fargo Co............................    37,200     1,485,675
                                                              ---------
                                                              4,526,306
                                                              ---------
   Building Materials -- 1.87%
     Masco Corp................................    38,800     1,115,500
                                                              ---------
   Chemicals -- 1.74%
     Sigma-Aldrich Corp........................    35,300     1,036,937
                                                              ---------
   Computer Products & Services -- 12.64%
     Automatic Data Processing, Inc............    20,300     1,627,806
     Compaq Computer Corp......................    17,000       712,937
     Electronic Data Systems Corp..............    25,600     1,286,400
     Hewlett-Packard Co........................    16,900     1,154,481
     IMS Health, Inc...........................    17,000     1,282,437
     International Business Machines Corp......     7,900     1,459,525
                                                              ---------
                                                              7,523,586
                                                              ---------
   Communication Services -- 6.53%
     Bell Atlantic Co..........................    28,100     1,489,300
     Century Telephone Enterprises, Inc........    20,500     1,383,750
     SBC Communications, Inc...................    19,000     1,018,875
                                                              ---------
                                                              3,891,925
                                                              ---------
   Electronics -- 3.95%
     AMP, Inc..................................    18,204       947,746
     Intel Corp................................    11,825     1,402,002
                                                              ---------
                                                              2,349,748
                                                              ---------
   Finance -- 2.27%
     Federal Home Loan Mortgage Co.............    21,000     1,353,187
                                                              ---------
   Food & Beverages -- 11.78%
     Anheuser-Busch Cos., Inc..................    24,800     1,627,500
     BestFoods.................................    23,800     1,267,350
     ConAgra, Inc..............................    45,000     1,417,500
     PepsiCo, Inc..............................    35,100     1,436,906
     Sara Lee Corp.............................    44,800     1,262,800
                                                              ---------
                                                              7,012,056
                                                              ---------
</TABLE>




                 See accompanying notes to financial statements.

<PAGE>   106
                     PEGASUS VARIABLE GROWTH AND VALUE FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                                              
                 Description                     Shares     Market Value
- ----------------------------------------         ------     ------------
<S>                                              <C>         <C>
   Health Care/Pharmaceutical -- 9.88%   
     Abbott Laboratories................         19,800     $  970,200
     American Home Products Corp........         29,900      1,683,744
     Bristol-Meyers Squibb Co...........         14,900      1,993,806
     Schering-Plough Corp...............         22,400      1,237,600
                                                            ----------
                                                             5,885,350
                                                            ----------
   Household Products -- 2.57%   
     Kimberly Clark Corp................         28,100      1,531,450
                                                            ----------
   Housewares -- 2.02%   
     Newell Co..........................         29,200      1,204,500
                                                            ----------
   Insurance -- 4.92%   
     American International Group, Inc..         12,300      1,188,487
     Chubb Corp.........................         15,600      1,012,050
     MGIC Investment Corp...............         18,400        732,550
                                                            ----------
                                                             2,933,087
                                                            ----------
   Manufacturing -- 4.59%   
     Dover Corp.........................         32,900      1,204,963
     Johnson Controls, Inc..............         15,700        926,300
     York International Corp............         14,700        599,944
                                                            ----------
                                                             2,731,207
                                                            ----------
   Multi-Industry -- 1.54%   
     General Electric Co................          9,000        918,563
                                                            ----------
   Oil & Gas -- 9.17%   
     British Petroleum PLC ADR..........         14,406      1,368,570
     Enron Corp.........................         23,100      1,318,144
     Mobil Corp.........................         15,900      1,385,288
     Schlumberger Ltd...................         30,100      1,388,363
                                                            ----------
                                                             5,460,365
                                                            ----------
   Publishing -- 3.66%   
     Gannett Co., Inc...................         19,500      1,257,750
     Washington Post Co. Class B........          1,600        924,700
                                                            ----------
                                                             2,182,450
                                                            ----------
   Retail -- 3.83%
     J. C. Penney Company, Inc..........         22,900      1,073,438
     Officemax, Inc.*...................         98,700      1,209,075
                                                            ----------
                                                             2,282,513
                                                            ----------
   Utilities -- 4.08%
     FPL Group, Inc.....................         17,700      1,090,763
     Pinnacle West Capital Corp.........         31,600      1,339,050
                                                            ----------
                                                             2,429,813
                                                            ----------
TOTAL COMMON STOCK......................                    57,585,080
                                                            ----------
   (Cost $48,608,752)   
</TABLE>
                 See accompanying notes to financial statements.

<PAGE>   107

                     PEGASUS VARIABLE GROWTH AND VALUE FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                                                                                    
                                                                                         Face Amount   Market Value
                                                                                         -----------   ------------
<S>                                                                                       <C>          <C>        
REPURCHASE AGREEMENTS -- 2.81%
     State Street Bank, 4.40%, dated 12/31/98, due 01/04/99, collateralized by
        $1,490,000 U.S. Treasury Note, 7.25%, due 05/15/04, market value
        $1,684,390 (Cost $1,646,000)............................................          $1,646,000   $ 1,646,000
     State Street Bank, 4.40%, dated 12/31/98, due 01/04/99, collateralized by
        $25,000 U.S. Treasury Bond, 10.75%, due 08/15/05, market value $34,375
        (Cost $29,000)..........................................................              29,000        29,000
                                                                                                       -----------
TOTAL REPURCHASE AGREEMENTS.....................................................                         1,675,000
                                                                                                       -----------
   (Cost $1,675,000)   
TOTAL INVESTMENTS...............................................................                       $59,260,080
                                                                                                       ===========
   (Cost $50,283,752)   
</TABLE>

Percentages indicated are based on net assets.

*Non-income producing security.



                 See accompanying notes to financial statements.


<PAGE>   108
                   PEGASUS VARIABLE MID-CAP OPPORTUNITY FUND
                                        
                            PORTFOLIO OF INVESTMENTS
                               December 31, 1998


<TABLE>
<CAPTION>
                                                              
                 Description                            Shares     Market Value
- ----------------------------------------------------    ------     ------------
<S>                                                     <C>        <C>
COMMON STOCK -- 96.28%
   Apparel -- 1.88%
     Tommy Hilfiger Corp............................     5,700     $  342,000
                                                                   ----------
   Banks -- 8.31%
     Associated Banc Corp...........................     6,847        234,082
     Charter One Financial, Inc.....................    16,730        464,257
     First Tennessee National Corp..................     5,800        220,763
     Peoples Heritage Financial Group, Inc..........    12,100        242,000
     TCF Financial Corp.............................    14,400        348,300
                                                                   ----------
                                                                    1,509,402
                                                                   ----------
   Business Equipment & Services -- 7.24%
     Comdisco, Inc..................................    10,300        173,812
     Convergys Corp.................................     3,700         82,788
     HON Industries, Inc............................    11,500        275,281
     Omnicom Group..................................     4,800        278,400
     Sterling Commerce, Inc.*.......................     5,200        234,000
     Young & Rubicam Inc............................     8,400        271,950
                                                                   ----------
                                                                    1,316,231
                                                                   ----------
  Chemicals -- 1.29%
     OM Group, Inc..................................     6,400        233,600
                                                                   ----------
   Computer Products & Services -- 8.83%
     Affiliated Computer Services, Inc.-- Class A        7,800        351,000
     Autodesk, Inc..................................     4,700        200,631
     DST Systems, Inc...............................     5,600        319,550
     National Data Corp.............................     5,600        272,650
     Sungard Data Systems, Inc......................    11,600        460,375
                                                                   ----------
                                                                    1,604,206
                                                                   ----------
   Construction -- 4.14%
     Applied Power, Inc.-- Class A..................     8,100        305,775
     Crane Co.......................................    14,787        446,383
                                                                   ----------
                                                                      752,158
                                                                   ----------
   Containers -- 1.59%
     AptarGroup, Inc................................    10,300        289,044
                                                                   ----------
   Electronics -- 10.71%
     Ametek, Inc....................................     7,500        167,344
     Lexmark International Group, Inc...............     5,800        582,900
     Littlefuse, Inc................................     8,100        155,925
     Microchip Technology, Inc.*....................     8,100        299,700
     Molex, Inc. Class A............................     7,113        226,727
     Teradyne, Inc.*................................     5,100        216,112
     Xilinx, Inc.*..................................     4,550        296,319
                                                                   ----------
                                                                    1,945,027
                                                                   ----------
   Energy & Utilities -- .84%
     Noble Affiliates, Inc..........................     6,200        152,675
                                                                   ----------
</TABLE>


                 See accompanying notes to financial statements.


<PAGE>   109
                   PEGASUS VARIABLE MID-CAP OPPORTUNITY FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                                              
                    Description                          Shares     Market Value
- -----------------------------------------------------    ------     ------------
<S>                                                     <C>        <C>
   Finance -- 6.91%
     A. G. Edwards, Inc..............................     6,750     $  251,438
     FINOVA Group Inc................................     7,700        415,319
     Heller Financial, Inc...........................    12,500        367,188
     Waddell & Reed Financial, Inc. Class A..........     9,300        220,294
                                                                    ----------
                                                                     1,254,239
                                                                    ----------
   Food Wholesalers -- 1.51%
     U.S. Foodservice................................     5,600        274,400
                                                                    ----------
   Health Care/Pharmaceutical -- 6.58%
     DENTSPLY International, Inc.....................     7,200        185,400
     HCR Manor Care, Inc.*...........................     5,800        170,375
     Health Management Associates, Inc. Class A......     6,543        141,492
     Sybron International Corp.......................    16,500        448,594
     Universal Health Services, Inc.-- Class B.......     4,800        249,000
                                                                    ----------
                                                                     1,194,861
                                                                    ----------
   Home Furnishings -- 1.53%
     Leggett & Platt, Inc............................    12,600        277,200
                                                                    ----------
   Industrial Automation -- 0.68%
     DT Industries, Inc..............................     7,800        122,850
                                                                    ----------
   Information Technology -- 1.05%
     Galileo International, Inc......................     4,400        191,400
                                                                    ----------
   Insurance -- 7.19%
     Capital Re Corp.................................     9,000        180,562
     CMAC Investment Corp............................     6,000        275,625
     Everest Reinsurance Holdings, Inc...............     9,100        354,331
     Executive Risk, Inc.............................     3,900        214,256
     PMI Group, Inc..................................     2,850        140,718
     Transatlantic Holdings, Inc.....................     1,850        139,791
                                                                    ----------
                                                                     1,305,283
                                                                    ----------
   Manufacturing -- 5.67%
     Harsco Corp.....................................     6,100        185,669
     Hubbell Inc. Class B............................     4,000        152,000
     Idex Corp.......................................     4,775        116,987
     Juno Lighting, Inc..............................    11,100        259,462
     Teleflex, Inc...................................     6,900        314,813
                                                                    ----------
                                                                     1,028,931
                                                                    ----------
   Miscellaneous -- 3.13%
     Kemet Corp......................................     6,300         70,875
     Waters Corp.....................................     5,700        497,325
                                                                    ----------
                                                                       568,200
                                                                    ----------
</TABLE>


                 See accompanying notes to financial statements.


<PAGE>   110
                   PEGASUS VARIABLE MID-CAP OPPORTUNITY FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                                              
                 Description               Shares    Market Value
- ---------------------------------------    ------    ------------
<S>                                        <C>       <C>
   Motor Vehicles -- 6.51%
     Borg-Warner Automotive, Inc.......     5,900    $   329,294
     Harley-Davidson, Inc..............     9,300        440,587
     Tower Automotive, Inc.............    16,500        411,469
                                                     -----------
                                                       1,181,350
                                                     -----------
   Multi-Industry -- 0.83%
     Lancaster Colony Corp.............     4,700        150,988
                                                     -----------
   Oil & Gas -- 2.32%
     Apache Corp.......................     8,300        210,094
     Cooper Cameron Corp...............     5,900        144,550
     Global Industries, Limited........    10,900         66,762
                                                     -----------
                                                         421,406
                                                     -----------
   Retail -- 7.54%
     Kohls Corp.*......................     3,600        221,175
     Saks Inc..........................    12,600        397,687
     The Men's Wearhouse, Inc..........    10,750        341,313
     Zale Corp.........................    12,700        409,575
                                                     -----------
                                                       1,369,750
                                                     -----------
TOTAL COMMON STOCK.....................               17,485,201
                                                     -----------
   (Cost $14,775,376)
</TABLE>

<TABLE>
<CAPTION>
                                                                              Face
                                                                             Amount
                                                                             ------
<S>                                                                          <C>           <C>
REPURCHASE AGREEMENTS -- 3.29%
State Street Bank, 4.40%, dated 12/31/98, due 01/04/99,
   collateralized by $450,000 U.S. Treasury Bond, 8.00% due 11/15/21,
   market value $607,364 (Cost $590,000).................................    $590,000      $   590,000
State Street Bank, 4.40%, dated 12/31/98, due 01/04/99,
   collateralized by $10,000 U.S. Treasury Bond, 7.25% due 05/15/16,
   market value $12,184 (Cost $8,000)....................................       8,000            8,000
                                                                                           ------------
TOTAL REPURCHASE AGREEMENTS..............................................                      598,000
                                                                                           ------------
   (Cost $598,000)
TOTAL INVESTMENTS........................................................                  $18,083,201
                                                                                           ===========
   (Cost $15,373,376)
</TABLE>

Percentages indicated are based on net assets.

*Non-income producing security.


                 See accompanying notes to financial statements.


<PAGE>   111
                              PEGASUS GROWTH FUND
                                        
                            PORTFOLIO OF INVESTMENTS
                               December 31, 1998

<TABLE>
<CAPTION>
                                                              
                 Description                       Shares    Market Value
- ----------------------------------------------     ------    ------------
<S>                                                <C>       <C>
COMMON STOCK -- 99.88%
   Banks -- 2.26%
     State Street Corp.........................     3,000    $  208,688
     Wells Fargo Co............................     9,000       359,437
                                                             ----------
                                                                568,125
                                                             ----------
   Beverages -- 3.75%
     Coca Cola Co..............................     8,000       535,000
     PepsiCo, Inc..............................    10,000       409,374
                                                             ----------
                                                                944,374
                                                             ----------
   Business Services -- 2.78%
     Interpublic Group Cos., Inc...............     4,000       319,000
     Service Corp. International...............    10,000       380,625
                                                             ----------
                                                                699,625
                                                             ----------
   Health Care/Pharmaceutical -- 22.98%
     American Home Products Corp...............     5,000       281,563
     Amgen, Inc.*..............................     5,000       522,813
     Elan Corp. PLC ADR*.......................    10,000       695,624
     Eli Lilly & Co............................     5,000       444,375
     Guidant Corp..............................     5,000       551,250
     Merck & Co., Inc..........................     4,000       590,750
     Mylan Laboratories, Inc...................    14,000       441,000
     Pfizer, Inc...............................     4,500       564,469
     SmithKline Beecham PLC ADR................     8,000       556,000
     Stryker Corp..............................     7,000       385,438
     United HeathCare Corp.....................     7,000       301,438
     Warner-Lambert Co.........................     6,000       451,125
                                                             ----------
                                                              5,785,845
                                                             ----------
   Computer Products & Services -- 17.59%
     Dell Computer Corp.*......................     8,000       585,500
     Cisco Systems, Inc.*......................    12,000     1,113,750
     Compuware Corp.*..........................     5,000       390,625
     International Business Machines Corp......     2,000       369,500
     Microsoft Corp.*..........................     8,000     1,109,499
     Sun Microsystems, Inc.*...................    10,000       856,249
                                                             ----------
                                                              4,425,123
                                                             ----------
   Electronics -- 5.47%
     Altera Corp.*.............................     9,000       547,875
     Intel Corp................................     7,000       829,937
                                                             ----------
                                                              1,377,812
                                                             ----------
   Entertainment -- 0.83%
     Walt Disney Co............................     7,000       210,000
                                                             ----------
</TABLE>


                 See accompanying notes to financial statements.


<PAGE>   112
                              PEGASUS GROWTH FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                                              
                 Description                         Shares    Market Value
- --------------------------------------------         ------    ------------
<S>                                                  <C>       <C>
   Finance -- 5.22%   
     Associates First Capital Corp..........          10,000   $   423,750
     Freddie Mac............................           8,000       515,500
     MBNA Corp..............................          15,000       374,063
                                                               -----------
                                                                 1,313,313
                                                               -----------
   Household Products -- 1.09%   
     Procter & Gamble Co....................           3,000       273,938
                                                               -----------
   Insurance -- 2.90%   
     AFLAC, Inc.............................           6,000       264,000
     UNUM Corp..............................           8,000       467,000
                                                               -----------
                                                                   731,000
                                                               -----------
   Manufacturing -- 2.95%
     Illinois Tool Works, Inc...............           5,000       290,000
     Tyco International Ltd.................           6,000       452,625
                                                               -----------
                                                                   742,625
                                                               -----------
   Multi-Industry -- 4.05%   
     General Electric Co....................          10,000     1,020,625
                                                               -----------
   Oil & Gas -- 0.91%   
     Baker Hughes, Inc......................          13,000       229,938
                                                               -----------
   Retail -- 12.48%   
     Dollar General Corp....................          20,000       472,500
     Home Depot, Inc........................          13,000       795,438
     Rite Aid Corp..........................           9,000       446,062
     Staples, Inc.*.........................          14,000       611,625
     Walgreen Co............................           7,000       409,938
     Wal-Mart Stores, Inc...................           5,000       407,188
                                                               -----------
                                                                 3,142,751
                                                               -----------
   Telecommunications -- 10.81%   
     AirTouch Communications, Inc.*.........          11,000       793,375
     Lucent Technologies, Inc...............           4,000       440,000
     MCI WorldCom, Inc.*....................          10,000       717,500
     Telefonaktiebolaget LM Ericsson ADR....          15,000       359,063
     Tellabs, Inc.*.........................           6,000       411,374
                                                               -----------
                                                                 2,721,312
                                                               -----------
   Tobacco -- 2.12%   
     Philip Morris Cos., Inc................          10,000       535,000
                                                               -----------
   Utilities -- 1.69%   
     AES Corp.*.............................           9,000       426,375
                                                               -----------
TOTAL INVESTMENTS...........................                   $25,147,781
                                                               ===========
   (Cost $15,841,827)   
</TABLE>

Percentages indicated are based on net assets.
*Non-income producing security.


                 See accompanying notes to financial statements.


<PAGE>   113
                     PEGASUS VARIABLE INTRINSIC VALUE FUND
                                        
                            PORTFOLIO OF INVESTMENTS
                               December 31, 1998



<TABLE>
<CAPTION>
                                                                 
                    Description                       Face Amount   Market Value
- ----------------------------------------------------  -----------   ------------
<S>                                                   <C>           <C>
CONVERTIBLE BOND -- 0.70%
   Pep Boys, Zero Coupon, 09/20/11..................    $300,000    $  157,125
                                                                    ----------
   (Cost $169,945)

                                                         Shares
                                                         ------
COMMON STOCK -- 81.64%
   Aerospace -- 3.54%
     Lockheed Martin Corp...........................       9,400       796,650
                                                                    ----------
   Apparel -- 3.47%
     Unifi, Inc.....................................      40,000       782,500
                                                                    ----------
   Auto Parts & Equipment -- 2.65%
     Bandag, Inc. Class A...........................      17,090       596,014
                                                                    ----------
   Banks -- 5.34%
     Marshall & Ilsley Corp.........................       6,100       356,469
     Pacific Century Financial Corp.................      21,000       511,875
     SouthTrust Corp................................       9,000       332,438
                                                                    ----------
                                                                     1,200,782
                                                                    ----------
   Business Services -- 1.91%
     Grey Advertising, Inc..........................       1,180       429,520
                                                                    ----------
   Chemicals -- 1.90%
     NCH Corp.......................................       7,200       428,400
                                                                    ----------
   Communication Services -- 1.65%
     Century Telephone Enterprises, Inc.............       5,500       371,250
                                                                    ----------
   Consumer Cyclicals -- 1.26%
     Enesco Group, Inc..............................      12,200       283,650
                                                                    ----------
   Energy & Utilities -- 11.19%
     Allegheny Energy, Inc..........................       9,400       324,300
     Arch Coal, Inc.................................      22,100       378,463
     CMS Energy Corp................................       6,500       314,844
     Energy East Corp...............................       5,600       316,400
     Pinnacle West Capital Corp.....................       7,000       296,625
     SJW Corp.......................................       3,500       205,625
     Sierra Pacific Resources.......................      10,300       391,399
     St. Joseph Light & Power Co....................      12,200       218,838
     Tennant Co.....................................       1,800        72,225
                                                                    ----------
                                                                     2,518,719
                                                                    ----------
   Finance -- 6.54%
     Financial Security Assurance Holdings Ltd......       7,000       379,750
     Fund American Enterprises Holdings, Inc........       7,800     1,092,487
                                                                    ----------
                                                                     1,472,237
                                                                    ----------
   Food & Agriculture -- 2.19%
     Farmer Brothers Co.............................       2,300       492,200
                                                                    ----------
   Health Care -- 1.12%
     Block Drug Co., Inc. Class A...................       5,799       251,527
                                                                    ----------
   Houseware -- 0.95%
     National Presto Industries, Inc................       5,000       213,125
                                                                    ----------
</TABLE>


                 See accompanying notes to financial statements.


<PAGE>   114
                     PEGASUS VARIABLE INTRINSIC VALUE FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998

<TABLE>
<CAPTION>

                                                                                                           
                                      Description                                              Shares    Market Value
   -------------------------------------------------------------------------------------       ------    ------------
   <S>                                                                                         <C>       <C>
   Insurance -- 14.20%
     American National Insurance Co.....................................................        7,400    $   612,350
     Leucadia National Corp.............................................................       28,100        885,150
     Ohio Casualty Corp.................................................................        6,250        257,031
     Old Republic International Corp....................................................       27,550        619,874
     PXRE Corp..........................................................................       15,260        382,454
     SAFECO Corp........................................................................       10,200        437,963
                                                                                                         -----------
                                                                                                           3,194,822
                                                                                                         -----------
   Multi-Industry -- 4.88%
     Loews Corp.........................................................................       11,180      1,098,434
                                                                                                         -----------
   Oil & Gas -- 3.48%
     Atlantic Richfield Co..............................................................        2,300        150,075
     El Paso Energy Corp................................................................        9,300        323,756
     Southwest Gas Corp.................................................................       11,500        309,063
                                                                                                         -----------
                                                                                                             782,894
                                                                                                         -----------
   REITS -- 0.33%
     Associates Estates Realty Corp.....................................................        6,200         73,238
                                                                                                         -----------
   Restaurants -- 5.82%
     Luby's Cafeterias, Inc.............................................................       19,200        296,400
     Sbarro, Inc........................................................................       38,700      1,013,455
                                                                                                         -----------
                                                                                                           1,309,855
                                                                                                         -----------
   Retail -- 4.97%
     Office Depot, Inc.*................................................................        9,600        354,600
     Payless ShoeSource, Inc.*..........................................................       16,100        762,738
                                                                                                         -----------
                                                                                                           1,117,338
                                                                                                         -----------
   Tobacco -- 1.16%
     UST, Inc...........................................................................        7,500        261,563
                                                                                                         -----------
   Transportation-Railroads -- 3.09%
     Canadian National Railway Co. ADR..................................................       13,410        695,644
                                                                                                         -----------
 TOTAL COMMON STOCK.....................................................................                 $18,370,362
                                                                                                         -----------
   (Cost $18,758,848)

 REPURCHASE AGREEMENTS -- 17.69%                                                              
                                                                                           Face Amount
                                                                                           -----------
   State Street Bank, 4.40%, dated 12/31/98, due 01/04/99, collateralized by
     $10,000 U.S. Treasury Bond, 7.50% due 11/15/16, market value $12,486 (Cost
     $11,000)...........................................................................      $11,000      $  11,000
   State Street Bank, 4.40%, dated 12/31/98, due 01/04/99, collateralized by
     $3,585,000 U.S. Treasury Note, 7.25% due 05/15/04, market value $4,052,710
     (Cost $3,970,000)..................................................................    3,970,000      3,970,000
                                                                                                         -----------
 TOTAL REPURCHASE AGREEMENTS............................................................                   3,981,000
                                                                                                         -----------
   (Cost $3,981,000)
TOTAL INVESTMENTS.......................................................................                 $22,508,487
                                                                                                         ===========
   (Cost $22,909,793)
</TABLE>

          Percentages indicated are based on net assets.
 *  Non-income producing security.



                 See accompanying notes to financial statements.


<PAGE>   115
                     PEGASUS VARIABLE INTRINSIC VALUE FUND

                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                                                                     
                             Description                                 Face Amount   Market Value
- ----------------------------------------------------------------------   -----------   ------------
<S>                                                                      <C>           <C>
U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 77.21%
   U.S. Treasury Securities -- 45.66%
   U.S. Treasury Bonds:
     10.375%, 11/15/09................................................      $400,000   $   511,375
     12.75%, 11/15/10.................................................     9,745,000    14,169,844
     10.375%, 11/15/12................................................     2,790,000     3,858,048
     8.75%, 05/15/17..................................................     2,400,000     3,342,751
   U.S. Treasury Inflation Protection Securities:
     3.625%, 07/15/02.................................................       200,000       203,458
     3.375%, 01/15/07.................................................       200,000       199,584
     3.625%, 04/15/28.................................................       550,000       543,567
   U.S. Treasury Note, 7.125%, 02/29/00...............................     4,000,000     4,110,000
   U.S. Treasury Strips:
     11/15/11.........................................................       500,000       254,178
     02/15/13.........................................................       300,000       140,836
     02/15/14.........................................................       450,000       198,476
     05/15/18.........................................................       800,000       274,068
                                                                                       -----------
     (Cost $26,016,836)                                                                 27,806,185
                                                                                       -----------
   Agency Obligations -- 31.55%
   Federal Home Loan Mortgage Corp. Participation Ctfs.:
     #555238, 12.00%, 07/01/19........................................        77,175        85,333
     #G10777, 9.00%, 06/01/10.........................................       642,506       675,807
   Federal Home Loan Mortgage Corp. Gtd. Multi-Class Mortgage
     Participation Ctfs.:
     Series 11 Class D, 9.50%, 07/15/19...............................       250,000       263,274
     Series 22 Class C, 9.50%, 04/15/20...............................       151,920       159,821
     Series 47 Class F, 10.00%, 06/15/20..............................        80,546        84,783
     Series 99 Class Z, 9.50%, 01/15/21...............................        45,739        48,767
     Series 128 Class I, 6.50%, 02/15/21..............................       161,630       162,088
     Series 1051 Class D, 7.00%, 11/15/19.............................        14,266        14,278
     Series 1065 Class J, 9.00%, 04/15/21.............................        75,419        79,688
     Series 1250 Class J, 7.00%, 05/15/22.............................       211,000       215,554
     Series 1295 Class JB, 4.50%, 03/15/07............................       300,000       292,433
     Series 1297 Class H, 7.50%, 01/15/20.............................       212,671       215,995
     Series 1370 Class F, 6.75%, 03/15/19.............................       110,040       110,252
     Series 1389 Class SA, IF, 10/15/07...............................        25,024        24,273
     Series 1465 Class SA, IO, IF, 02/15/08...........................       501,442        17,748
     Series 1489 Class L, 5.50%, 04/15/08.............................        64,574        64,449
     Series 1505 Class Q, 7.00%, 05/15/23.............................       200,000       202,703
     Series 1543 Class JC, IF, 07/15/23...............................        95,000        85,894
     Series 1586 Class A, 6.00%, 09/15/08.............................       127,711       127,656
     Series 1589 Class Z, 6.25%, 09/15/23.............................       762,949       732,003
     Series 1595 Class S, IO, IF, 10/15/13............................       689,513        18,407
     Series 1603 Class JF, IF, 01/15/23...............................        45,000        45,542
     Series 1606 Class LC, IF, 05/15/08...............................       167,150       170,201
     Series 1609 Class LG, IF, 11/15/23...............................       145,827       139,348
     Series 1619 Class SD, IF, 11/15/23...............................       144,098       144,548
</TABLE>





                See accompanying notes to financial statements.


<PAGE>   116
                     PEGASUS VARIABLE INTRINSIC VALUE FUND

                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998

<TABLE>
<CAPTION>
                                 Description                                        Face Amount  Market Value
  -----------------------------------------------------------------------------     -----------  ------------
  <S>                                                                                <C>          <C>      
     Series 1625 Class SD, IF, 12/15/08........................................      $200,000     $ 204,693
     Series 1646 Class MD, IF, 8.50%, 10/15/22.................................       173,833       174,545
     Series 1647 Class SB, IF, 12/15/08........................................        66,281        66,361
     Series 1679 Class O, 6.40%, 02/15/09......................................       199,762       201,745
     Series 1685 Class Z, 6.00%, 11/15/23......................................       133,546       126,966
     Series 1686 Class SL, IF, 02/15/24........................................        88,814        88,642
     Series 1689 Class SD, IF, 10/15/23........................................       100,000       101,819
     Series 1700 Class GA, PO, 02/15/24........................................       286,574       225,167
     Series 1709 Class C, 5.50%, 12/15/19......................................       285,501       284,746
     Series 1796-A Class S, IF, 02/15/09.......................................       125,000       118,307
     Series 1859 Class SB, IO, IF, 10/15/23....................................       109,262        14,420
     Series 1967 Class PC, PO, 10/15/08........................................       217,029       190,712
     Series 1981 Class Z, 6.00%, 05/15/27......................................       324,921       315,039
     Series 1987 Class W, PO, 02/15/22.........................................       500,000       387,497
     Series 2002 Class A, PO, 11/15/22.........................................       144,000       112,061
     Series 2025 Class PE, 6.30%, 01/15/13.....................................       300,000       303,337
     Series 2038 Class PN, IO, 7.00%, 03/15/28.................................       768,835       158,222
     Series 2054 Class PV, 7.50%, 05/15/28.....................................       500,000       526,109
   Federal National Mortgage Assn. Pass Thru Securities:
     Pool #116612, AR, 03/01/19................................................        59,457        62,537
     Pool #303532, AR, 03/01/29................................................       119,332       120,047
   Federal National Mortgage Assn. Pass Thru Securities Gtd. Remic Trust:
     1989 Class 83-H, 8.50%, 11/25/19..........................................       318,238       329,249
     1990 Class 1-D, 8.80%, 01/25/20...........................................       107,802       113,199
     1990 Class 93-G, 5.50%, 08/25/20..........................................        90,080        88,105
     1990 Class 140-K, HB, 652.1454%, 12/25/20.................................         1,047        16,111
     1990 Class 143-J, 8.75%, 12/25/20.........................................       118,963       123,696
     1991 Class 161-H, 7.50%, 02/25/21.........................................         5,301         5,289
     1992-G Class 15-Z, 7.00%, 01/25/22........................................       290,006       304,121
     1992-G Class 42-Z, 7.00%, 07/25/22........................................       156,335       158,228
     1992-G Class 59-F, IF, 10/25/22...........................................       105,346       102,877
     1992-G Class 61-Z, 7.00%, 10/25/22........................................        36,911        37,143
     1992-G Class 66-JB, 5.00%, 11/25/21.......................................       200,000       193,785
     1992 Class 143-MA, 5.50%, 09/25/22........................................       400,000       385,392
     1992 Class 204-B, 6.00%, 10/25/20.........................................       234,939       234,741
     1993-G Class 1-KA, IF, 01/25/23...........................................       169,000       184,170
     1993-G Class 12-C, PO, 02/25/23...........................................       218,610       207,466
     1993-G Class 13-G, 6.00%, 06/25/20........................................       138,209       138,110
     1993 Class 19-G, 5.00%, 05/25/19..........................................       208,938       207,740
     1993-G Class 19-K, 6.50%, 06/25/19........................................        20,275        20,333
     1993 Class 38-S, IO, IF, 11/25/22.........................................         3,733            20
     1993 Class 44-S, IO, IF, 04/25/23.........................................        92,482         3,414
     1993 Class 58-J, 5.50%, 04/25/23..........................................        29,929        29,525
     1993 Class 94-K, 6.75%, 05/25/23..........................................        28,139        28,117
     1993 Class 134-SA, IF, 08/25/08...........................................       200,000       205,096
     1993 Class 139-SG, IF, 08/25/23...........................................       135,828       130,045
     1993 Class 155-SB, IO, IF, 09/25/23.......................................       282,447         8,598
     1993 Class 175-S, IF, 05/25/07............................................        70,953        70,945
</TABLE>





                 See accompanying notes to financial statements.


<PAGE>   117
                           PEGASUS VARIABLE BOND FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                                                                                
                                    Description                                         Face Amount  Market Value
  ----------------------------------------------------------------------------------    -----------  ------------
  <S>                                                                                   <C>         <C>        
     1993 Class 193-B, 3.00%, 09/25/23..............................................      $226,154    $   217,405
     1993 Class 196-FA, IF, 10/25/08................................................       153,556        151,208
     1993 Class 220-SD, IF, 11/25/13................................................        49,707         48,362
     1993 Class X-225C-FP, IF, 10/25/22.............................................       120,000        112,504
     1993 Class 230-FA, IF, 12/25/23................................................       179,385        178,814
     1993 Class 257-C, PO, 06/25/23.................................................       600,000        419,454
     1994 Class 8-G, PO, 11/25/23...................................................        86,531         80,331
     1994-G Class 13-ZB, 7.00%, 11/17/24............................................       178,642        177,001
     1994 Class 30-LA, 6.50%, 10/25/21..............................................        24,464         24,588
     1994 Class 82-SA, IO, IF, 06/25/23.............................................       818,911         20,594
     1995 Class 13-B, 6.50%, 03/25/09...............................................       107,087        107,378
     1996 Class 7-C, 6.50%, 12/25/10................................................       199,989        199,546
     1996 Class 20-L, PO, 09/25/08..................................................       182,059        157,588
     1996 Class 24-B, PO, 10/25/08..................................................       200,000        158,738
     1996 Class 24-K, PO, 02/25/08..................................................       100,000         92,500
     1996 Class 39-J, PO, 09/25/08..................................................       150,000        118,038
     1996 Class 59-J, 6.50%, 08/25/22...............................................       268,000        268,646
     1997 Class 39-PD, 7.50%, 05/20/27..............................................       200,000        209,108
     1997 Class 85-L, IO, 12/25/20..................................................       386,108         40,780
   Federal National Mortgage Assn. Strips:
     Class K-2, IO, 11/01/08........................................................         7,706         44,087
   Government National Mortgage Assn. Pass Thru Securities:
     Pool #297628, 8.00%, 09/15/22..................................................       126,995        132,387
     Pool #2006, 8.50%, 05/20/25....................................................       250,859        265,722
     Pool #2324, 8.00%, 11/20/26....................................................       546,547        565,327
     Pool #2362, 8.00%, 01/20/27....................................................       897,875        929,426
     Pool #460372, 8.00%, 05/15/28..................................................       257,674        268,010
     Pool #468066, 8.00%, 07/15/28..................................................       238,900        248,482
     Pool #486537, 7.50%, 09/15/28..................................................       474,497        489,818
   Government National Mortgage Assn. Pass Thru Securities Gtd. Remic Trust:
     1994 Class 3-PQ, 7.4875%, 07/16/24.............................................       250,000        265,820
     1994 Class 4-SA, IO, IF, 10/16/22..............................................       546,060         22,426
     1996 Class 16-E, 7.50%, 08/16/26...............................................       713,000        750,081
     1996 Class 22-VB, 7.00%, 08/16/13..............................................       120,000        124,400
     1997 Class 8-PN, 7.50%, 05/16/27...............................................       500,000        521,176
     1998 Class 26-K, 7.50%, 09/17/25...............................................       491,000        510,244
                                                                                                      -----------
   (Cost $18,759,129)                                                                                  19,209,321
                                                                                                      -----------
TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS........................................                   47,015,506
                                                                                                      -----------
   (Cost $44,775,965)
</TABLE>


                 See accompanying notes to financial statements.


<PAGE>   118
                           PEGASUS VARIABLE BOND FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                      Description                                           Face Amount  Market Value
- ----------------------------------------------------------------------------------------    -----------  ------------
<S>                                                                                         <C>          <C> 
ASSET BACKED SECURITIES -- 7.69%
   Arcadia Automobiles Receivables Trust,
     Series 1997-B, Class A3, 6.30%, 07/16/01...........................................      $517,542   $  520,106
     Series 1998-B, Class A3, 5.95%, 11/15/02...........................................       250,000      253,186
     Series 1998-A, Class A4, 6.00%, 11/17/03...........................................       200,000      201,291
   Case Equipment Loan Trust Asset Backed Pass Thru. Ctf.,
     Series 1995-A, Class A, 7.30%, 03/15/02............................................        40,549       40,611
     Series 1995-B, Class A-3, 6.15%, 09/15/02..........................................        80,917       81,057
     Series 1996-A, Class A2, 5.50%, 02/15/03...........................................        72,237       72,373
   Chase Manhattan Grantor Trust, Series 1995-A, Class A, 6.00%, 09/17/01...............        94,782       95,162
   Chase Mortgage Finance Corp., Series 1994-E, Class A6B, IF, 04/25/10.................       156,021      155,484
   CPS Auto Trust Asset Backed Pass Thru Ctf.,
     Series 1997-4, Class A1, 6.07%, 03/15/03...........................................        88,499       88,921
     Series 1998-3, Class A4, 6.08%, 10/15/03...........................................       400,000      409,778
   Ford Credit Auto Owner Trust Asset Backed Pass Thru Ctf.,
     Series 1997-B, Class A2, 5.59%, 01/15/00...........................................        87,493       87,638
   Merrill Lynch Home Equity Loan, 1992-1, Class A, AR, 07/15/22........................        43,905       43,903
   Nationsbank Auto Grantor Trust Asset Backed Ctf.,
     Series 1995-A, Class A, 5.85%, 06/15/02............................................        17,640       17,714
   Navistar Financial Corp. Owner Trust, Series 1995-A, Class A2, 6.55%, 11/20/01.......        36,824       36,877
   Olympic Automobile Rec. Trust Asset Backed Pass Thru Ctf.,
     Series 1995-C, Class A2, 6.20%, 01/15/02...........................................       138,004      138,770
     Series 1996-C, Class A5, 7.00%, 03/15/04...........................................       300,000      309,266
   ONYX Acceptance Grantor Trust Auto Loan Pass Thru Ctf.,
     Series 1996-1, Class A, 5.40%, 05/15/01............................................        85,014       85,190
     Series 1998-B, Class A2, 5.85%, 07/15/03...........................................       250,000      253,169
   Premier Auto Trust, Series 1998-5, Class A3, 5.07%, 07/08/02.........................       500,000      498,353
   Sears Credit Account, Series 1998-1, Class A, 5.80%, 08/15/05........................       200,000      201,385
   WFS Financial Owner Trust Asset Backed Pass Thru Ctf.,
     Series 1996-C, Class A4, 6.80%, 12/20/03...........................................       150,000      152,287
     Series 1996-D, Class A3, 6.05%, 07/20/01...........................................       121,538      121,783
     Series 1997-A, Class A3, 6.50%, 09/20/01...........................................       115,405      116,701
     Series 1997-B, Class A2, 6.05%, 07/20/00...........................................        65,992       66,218
     Series 1997-C, Class A2, 5.95%, 06/20/00...........................................       104,647      104,976
   World Omni Automobile Lease Sec Trust Asset Backed Pass Thru Ctf.,
     Series 1997-B, Class A1, 6.07%, 11/25/03...........................................       231,662      232,052
     Series 1997-B, Class A3, 6.18%, 11/25/03...........................................       299,834      301,745
                                                                                                         ----------
TOTAL ASSET BACKED SECURITIES...........................................................                  4,685,996
                                                                                                         ----------
   (Cost $4,651,043)
</TABLE>


                 See accompanying notes to financial statements.


<PAGE>   119
                           PEGASUS VARIABLE BOND FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


<TABLE>
<CAPTION>
                                Description                                      Face Amount  Market Value
- -----------------------------------------------------------------------------    -----------  ------------
<S>                                                                              <C>          <C>   
CORPORATE BONDS AND NOTES -- 2.93%
   Automobile -- 1.02%
     Ford Motor Credit, 8.20%, 02/15/02......................................      $300,000   $   322,260
     General Motors Acceptance Corp., 5.75%, 11/10/03........................       300,000       301,571
                                                                                              -----------
   (Cost $615,547)                                                                                623,831
                                                                                              -----------
   Finance -- 0.87%
   Associates Corp. of North America:
     9.125%, 04/01/00........................................................        85,000        88,734
     8.15%, 08/01/09.........................................................       200,000       235,350
     5.96%, 05/15/37.........................................................       200,000       206,141
                                                                                              -----------
   (Cost $514,307)                                                                                530,225
                                                                                              -----------
   Industry -- 1.04%
   Boeing Co.:
     6.36%, 07/15/05.........................................................       500,000       501,997
     7.95%, 08/15/24.........................................................       110,000       129,448
                                                                                              -----------
   (Cost $625,805)                                                                                631,445
                                                                                              -----------
TOTAL CORPORATE BONDS AND NOTES..............................................                   1,785,501
                                                                                              -----------
   (Cost $1,755,659)

REPURCHASE AGREEMENTS -- 11.44%
   State Street Bank, 4.40%, dated 12/31/98, due 01/04/99,
     collateralized by $60,000 U.S. Treasury Note, 7.25%, due 05/15/04,
     market value $67,828 (cost $66,000).....................................      $ 66,000   $    66,000
   State Street Bank, 4.40%, dated 12/31/98, due 01/04/99,
     collateralized by $6,225,000 U.S. Treasury Note, 7.25%, due 05/15/04,
     market value $7,037,132 (cost $6,897,000)...............................     6,897,000     6,897,000
                                                                                              -----------
TOTAL REPURCHASE AGREEMENTS..................................................                   6,963,000
                                                                                              -----------
   (Cost $6,963,000)
TOTAL INVESTMENTS............................................................                 $60,450,003
                                                                                              ===========
   (Cost $58,145,667)

   Percentages indicated are based on net assets.
</TABLE>


                 See accompanying notes to financial statements.

<PAGE>   120
                           PEGASUS VARIABLE BOND FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998

                        NOTES TO PORTFOLIO OF INVESTMENTS

     The Pegasus Variable Bond Fund invests in securities whose value is derived
from an underlying pool of mortgages or consumer loans. Some of these securities
are collateralized mortgage obligations (CMOs). CMOs are debt securities issued
by U.S. government agencies or by financial institutions and other mortgage
lenders which are collateralized by a pool of mortgages held under an indenture.
Descriptions of certain collateralized mortgage obligations are as follows:

     Adjustable Rate (AR) represents securities with an interest rate that
changes periodically based upon an index of market rates. The rate reflected on
the Portfolio of Investments is the rate in effect at December 31, 1998.

     Inverse Floaters (IF) represent securities that pay interest at a rate that
increases (decreases) with a decline (increase) in a specified index.

     Interest Only (IO) represents the right to receive the monthly interest
payments on an underlying pool of mortgage loans. The face amount shown
represents the par value on the underlying pool. The yields on these securities
are generally higher than prevailing market yields other mortgage-backed
securities because their cash flow patterns are more volatile and there is a
greater risk that the initial investment will not be fully recouped. These
securities are subject to accelerated principal paydowns as a result of
prepayments or refinancing of the underlying pool of mortgage instruments. As a
result, interest income may be reduced considerably.

     High Coupon Bonds (HB) (a.k.a. "IOettes") represent the right to receive
interest payments on an underlying pool of mortgages with similar risks as those
associated with IO securities. Unlike IO's, the owner also has a right to
receive a very small portion of principal. The high interest rate results from
taking interest payments from other classes in the REMIC Trust and allocating
them to the small principal of the HB class.

   Principal Only (PO) represents the right to receive the principal portion
only on an underlying pool of mortgage loans. The market value of these
securities is extremely volatile in response to changes in market interest
rates. As prepayments on the underlying mortgages of these securities increase,
the yield on these securities increases.

The abbreviations in the Portfolio of Investments stand for the following:

ADR -- American Depositary Receipt
Ltd. -- Limited
PLC -- (British) Public Limited Company
REITS -- Real Estate Investment Trust


                 See accompanying notes to financial statements.


<PAGE>   121
                           PEGASUS VARIABLE BOND FUND
                                        
                    PORTFOLIO OF INVESTMENTS -- (Continued)
                               December 31, 1998


(1) Organization and Commencement of Operations

     The Pegasus Variable Funds (the "Trust" or the "Funds") was organized as a
Delaware business trust on November 7, 1994, and registered under the Investment
Company Act of 1940, as amended, as an open-end investment company. As of
December 31, 1998, the Trust consisted of five separate series of which there
were four Equity Funds and one Bond Fund, as described below.

                  Equity Funds:
                    Pegasus Variable Growth and Value Fund
                    Pegasus Variable Mid-Cap Opportunity Fund
                    Pegasus Variable Growth Fund
                    Pegasus Variable Intrinsic Value Fund

                  Bond Fund:
                    Pegasus Variable Bond Fund

     The Funds commenced operations on March 30, 1995, except for the Intrinsic
Value Fund and the Bond Fund, which commenced operations on May 1, 1997. Shares
of the Trust are made available to serve as the underlying investment media of
the variable annuity contracts issued by Separate Account Six of ITT Hartford
Life & Annuity Insurance Company. Orders for the Trust's shares are executed in
accordance with the investment instructions of the contract owners.

     On June 26, 1997, the Pegasus Variable Annuity Managed Assets Balanced and
Money Market Funds liquidated their assets and discontinued operations.
Shareholder investments in these two portfolios were reallocated into other
existing mutual funds offered by Separate Account Six within ITT Hartford Life
and Annuity Insurance Company, such shares being equal in value to the net
assets so reallocated.

     As of December 31, 1997 the Pegasus Variable Annuity Growth and Value Fund,
Pegasus Variable Annuity Mid-Cap Opportunity Fund, Pegasus Variable Annuity
Growth Fund, Pegasus Variable Annuity Intrinsic Value Fund, and Pegasus Variable
Annuity Bond Fund changed their names to the Pegasus Variable Growth and Value
Fund, Pegasus Variable Mid-Cap Opportunity Fund, Pegasus Variable Growth Fund,
Pegasus Variable Intrinsic Value Fund, and Pegasus Variable Bond Fund,
respectively.

     On October 2, 1998, First Chicago NBD Investment Management Company's
(FCNIMCO) parent company, First Chicago NBD Corporation, merged with and into
BANC ONE CORPORATION at which time was renamed to BANK ONE CORPORATION. BANK ONE
CORPORATION has now begun the process of reorganizing their proprietary mutual
funds. ITT Hartford Life and Annuity Insurance Company has filed an exemption
application with the Securities and Exchange Commission (SEC) requesting relief
from certain rules in order to substitute One Group Investment Trust Funds for
the Pegasus Variable Funds in their Separate Account Six. In turn, One Group
Investment Trust has filed a post effective amendment to its registration
statement, creating four new funds with similar investment objectives as the
Funds. The Pegasus Variable Growth Fund will be substituted with an existing
fund in One Group Investment Trust. Assuming approval by the SEC, it is
anticipated this substitution will occur in March, 1999. The substitution is
intended to be effected on a tax-free basis, so that none of the Funds'
shareholders will recognize taxable gains or losses as a result of the
substitution.

(2) Significant Accounting Policies

     The following is a summary of significant accounting policies followed in
the preparation of the financial statements. The policies are in conformity with
generally accepted accounting principles for investment companies. Following
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities, the
disclosure of contingent assets and liabilities at the date of the financial
statements and reported amounts of income and expenses during the reporting
period. Actual results could differ from those estimates. 
<PAGE>   122

PEGASUS VARIABLE FUNDS

NOTES TO FINANCIAL STATEMENTS




Investments

     The Funds value investment securities at market value which is determined
by a pricing service based upon quoted market prices or dealer quotes.
Securities for which market prices or dealer quotes are not readily available
are valued in accordance with procedures approved by the Board of Trustees.
Fixed income securities are valued at the mean of the closing bid and ask price
as estimated by an independent pricing service.

     Investment security purchases and sales are accounted for on the trade
date. Realized gains and losses from security transactions are recorded on the
specific identified cost basis.

     The Trust invests in securities subject to repurchase agreements. Such
transactions are entered into only with institutions included on the Federal
Reserve System's list of institutions with whom the Federal Reserve open market
desk will do business. Under the supervision of the Board of Trustees, the
following additional policies and procedures relating to the Trust's investments
in securities subject to repurchase agreements are established: 1) the value of
the underlying collateral is required to equal or exceed 102% of the funds
advanced under the repurchase agreement including accrued interest; 2)
collateral is marked-to-market daily to assure its value remains at least equal
to 102% of the repurchase agreement amount; and 3) funds are not disbursed by
the Trust or its agent unless collateral is presented or acknowledged by the
collateral custodian.

Investment Income

     Interest income is recorded daily on the accrual basis adjusted for
amortization of premium and accretion of discount on debt instruments. Bond
premiums and discounts are amortized/accreted under the effective interest rate
method. For mortgage-backed securities, as prepayments on the underlying
mortgages increase or decrease the expected life, the yield is adjusted to
amortize/accrete the security to its new expected life. Dividends are recorded
on the ex-dividend date.

Federal Income Taxes

     It is the Trust's policy to comply with the requirements of Subchapter M of
the Internal Revenue Code, as amended, applicable to regulated investment
companies and to distribute substantially all of its net investment income and
realized gains to its shareholders. Therefore, no federal income tax provision
is required in the accompanying financial statements.

     Net investment income and realized gains (losses) differ for financial
statement and tax purposes primarily because of the recognition of wash sales
transactions and post-October 31 capital losses. Also, due to the timing of
dividend distributions, the fiscal year in which amounts are distributed may
differ from the year that net investment income or realized gains were recorded
by the Funds. Certain book-to-tax timing differences for the Funds are reflected
as excess distributions in the Statements of Changes in Net Assets. These
distributions do not constitute a tax return of capital.

Shareholder Dividends

     Dividends from net investment income are declared and paid quarterly by the
Equity Funds and monthly by the Bond Fund. Net realized capital gains are
distributed annually or as necessary to comply with Subchapter M of the Internal
Revenue Code. Distributions from net investment income and net realized gains
are made during each year to prevent the 4% excise tax imposed on regulated
investment companies by the Internal Revenue Code.

Deferred Organization Costs

     Organization costs are amortized on a straight-line basis over a five year
period beginning with the commencement of operations of each portfolio.

Expenses

     Direct expenses of a fund are allocated to that fund. General expenses of
the Trust are allocated to each Fund based upon each Fund's relative net assets.
<PAGE>   123

PEGASUS VARIABLE FUNDS

NOTES TO FINANCIAL STATEMENTS -- (Continued)

When Issued/To Be Announced (TBA) Securities

     The Bond Fund may purchase securities on a "when issued" basis. These
securities have been registered by a municipality or government agency, but have
not yet been issued to the public. These transactions involve a commitment by
the Fund to purchase particular securities, with payment and delivery taking
place at a future date, for which all specific information, such as the face
amount and maturity date of such investment security, is not known at the time
of the trade. These transactions are subject to market fluctuations and the risk
that the value at delivery may be more or less than the purchase price at which
the transactions were entered. The current value of these securities is
determined in the same manner as that of other portfolio securities. Although
the Bond Fund generally purchases these securities with the intention of
acquisition, such securities may be sold before the settlement.

(3) Investment Advisory Fee, Administration Fee and Other Transactions With
Affiliates

     FCNIMCO is the investment advisor pursuant to an Advisory Agreement with
the Trust. For its advisory services to the Trust, FCNIMCO earns an annual fee
of 0.60% from the Equity Funds and 0.40% from the Bond Fund based on the average
daily net assets of each Fund.

     FCNIMCO and BISYS Fund Services serve as the Trust's Co-Administrators
pursuant to an Administration Agreement. Under the Administration Agreement, the
Co-Administrators generally assist in aspects of the Trust's administration and
operations, other than providing investment advice, subject to the overall
authority of the Trust's Board of Trustees in accordance with Delaware law.
FCNIMCO and BISYS appointed Nationwide Advisory Services, Inc. ("NAS") to
provide the administrative services of the Trust. Under the terms of the
Administration Agreement, the Co-Administrators are entitled to a monthly
administration fee at the annual rate of 0.15% of each Fund's average daily net
assets which is then paid to NAS.

     FCNIMCO has agreed that they may waive their fees in whole or in part; and,
if in part, may specify the particular Fund to which such waiver relates as may
be required to satisfy any expense limitation imposed by state securities laws
or other applicable laws. At present, no restrictive expense limitation is
imposed on the Trust. Restrictive limitations could be imposed as a result of
changes in current state laws and regulations in those states where the Trust
has qualified its shares, or by a decision of the Trustees to qualify the shares
in other states having restrictive expense limitations. For the year ended
December 31, 1998, FCNIMCO voluntarily agreed to waive their advisory fees to
the extent that the Funds' expenses exceeded 0.95% for the Growth and Value,
Mid-Cap Opportunity, Growth, and Intrinsic Value Funds and 0.75% for the Bond
Fund (as a percentage of each Fund's average daily net assets). For the year
ended December 31, 1998, FCNIMCO waived fees in the amounts of $33,240 in the
Variable Growth and Value Fund, $82,956 in the Variable Mid-Cap Opportunity
Fund, $56,564 in the Variable Growth Fund, $57,553 in the Variable Intrinsic
Value Fund, and $26,975 in the Variable Bond Fund. 
<PAGE>   124
PEGASUS VARIABLE FUNDS

NOTES TO FINANCIAL STATEMENTS -- (Continued)



(4) Investment Securities Transactions

     At December 31, 1998, the accumulated net unrealized appreciation
(depreciation) on investments for federal tax purposes and the federal tax cost
of investments was as follows:

<TABLE>
<CAPTION>
                                                                    Mid-Cap
                                                   Growth and      Opportunity                  Intrinsic
                                                   Value Fund        Fund         Growth Fund   Value Fund    Bond Fund 
<S>                                                <C>            <C>             <C>          <C>           <C>         
 Gross Unrealized Appreciation (Federal tax cost)  $10,031,572    $ 3,582,525     $ 9,570,842  $   992,072   $ 2,463,574 
 Gross Unrealized Depreciation (Federal tax cost)   (1,055,791)      (876,352)       (264,888)  (1,393,378)     (159,238)
  Net Unrealized Appreciation (Depreciation)       $ 8,975,781    $ 2,706,173     $ 9,305,954  $  (401,306)  $ 2,304,336 
 Federal Tax Cost                                  $48,609,299    $14,779,028     $15,841,827  $18,928,793   $51,182,667 
</TABLE>

     The following summarizes the securities transactions entered into by the
Funds, excluding short-term investments, for the year ended December 31, 1998:

<TABLE>
<CAPTION>
                             Mid-Cap
             Growth and    Opportunity                    Intrinsic
             Value Fund       Fund        Growth Fund    Value Fund      Bond Fund
<S>         <C>            <C>            <C>            <C>            <C>        
 Purchases  $34,178,733    $8,870,717     $11,828,501    $12,755,820    $27,782,628
 Sales      $20,314,165    $3,727,831     $ 8,932,579    $ 6,595,389    $ 6,420,623
</TABLE>

(5) Equity of Affiliates:

     As of December 31, 1998, Hartford Life Insurance Company held a direct
interest in shares as follows:

<TABLE>
<CAPTION>
                                                  
                                                     Percentage of
                                             Shares   Total Shares
<S>                                          <C>          <C>  
 Pegasus Variable Growth and Value Fund      57,163       1.71%
 Pegasus Variable Mid-Cap Opportunity Fund   62,050       5.04%
 Pegasus Variable Growth Fund                55,179       4.71%
 Pegasus Variable Intrinsic Value Fund       52,847       2.51%
 Pegasus Variable Bond Fund                 219,235       3.86%
</TABLE>







<PAGE>   125




PEGASUS VARIABLE FUNDS


FINANCIAL HIGHLIGHTS
For a share outstanding throughout each period

<TABLE>
<CAPTION>
                                                                        Growth and Value Fund                       
                                                        ------------------------------------------------------      
                                                        Year Ended    Year Ended     Year Ended    Year Ended       
                                                        December 31,  December 31    December 31,  December 31,     
                                                           1998          1997           1996          1995(1)       
<S>                                                      <C>            <C>           <C>             <C>           
NET ASSET VALUE - BEGINNING OF PERIOD                    $ 16.22        $ 13.19       $ $11.63        $10.00        
Net investment income (loss)                                0.11           0.13           0.15          0.13        
Net realized and unrealized appreciation                    2.00           3.38           2.02          1.63        
    Total from investment operations                        2.11           3.51           2.17          1.76        
Distributions: 
  From net investment income                               (0.12)         (0.13)         (0.14)        (0.13)       
  From net realized gains from investments                 (0.41)         (0.35)         (0.47)           --        
    Total distributions                                    (0.53)         (0.48)         (0.61)        (0.13)       
    Net increase in net asset value                         1.58           3.03           1.56          1.63        
 NET ASSET VALUE-END OF PERIOD                           $ 17.80        $ 16.22         $13.19        $11.63        
 Total return                                              13.10%         26.80%         18.75%        22.75%(2)    
 Ratios and supplemental data: 
  Net assets end of period (000)                         $59,560        $38,705         $8,603        $3,754        
  Ratio of net expenses to average net assets               0.95%          0.93%          0.85%         0.85%(2)    
  Ratio of expenses to average net assets excluding             
    waivers                                                 1.02%          1.10%          2.27%         4.93%(2)
  Ratio of net investment income (loss) to average               
    net assets                                               .69%           .93%          1.35%         1.78%(2)
  Portfolio turnover                                        43.2%          31.1%          46.8%         17.5%(2)    
</TABLE>


<TABLE>
<CAPTION>
                                                                            Mid-Cap Opportunity                   
                                                       ----------------------------------------------------------
                                                       Year Ended       Year Ended     Year Ended     Year Ended    
                                                       December 31,     December 31,   December 31,   December 31,
                                                           1998            1997           1996          1995(1)
<S>                                                      <C>             <C>             <C>            <C>         
NET ASSET VALUE - BEGINNING OF PERIOD                    $ 14.38         $ 13.46         $11.02         $10.00      
Net investment income (loss)                               (0.01)           0.01           0.03           0.05      
Net realized and unrealized appreciation                    0.70            3.55           2.67           1.02      
    Total from investment operations                        0.69            3.56           2.70           1.07      
Distributions: 
  From net investment income                                  --           (0.01)         (0.03)         (0.05)     
  From net realized gains from investments                 (0.31)          (2.63)         (0.23)            --      
    Total distributions                                    (0.31)          (2.64)         (0.26)         (0.05)     
    Net increase in net asset value                         0.38            0.92           2.44           1.02      
 NET ASSET VALUE-END OF PERIOD                           $ 14.76         $ 14.38         $13.46         $11.02      
 Total return                                               4.91%          26.65%         24.53%         14.20%(2)
 Ratios and supplemental data: 
  Net assets end of period (000)                         $18,160         $11,668         $9,216         $4,972      
  Ratio of net expenses to average net assets               0.95%           0.91%          0.85%          0.85%(2)
  Ratio of expenses to average net assets excluding         
    waivers                                                 1.52%           1.49%          2.11%          4.64%(2)
  Ratio of net investment income (loss) to average          
    net assets                                              (.10)%           .04%           .28%           .67%(2)
  Portfolio turnover                                        26.2%           80.7%          37.4%          32.1%(2)
</TABLE>


  (1) Commenced operations on March 30, 1995.

  (2) Annualized.






                 See accompanying notes to financial statements.


<PAGE>   126



PEGASUS VARIABLE FUNDS


FINANCIAL HIGHLIGHTS
For a share outstanding throughout each period

<TABLE>
<CAPTION>
                                                                             Growth Fund                    
                                                       ---------------------------------------------------  
                                                                             
                                                       Year Ended    Year Ended   Year Ended   Year Ended   
                                                       December 31,  December 31, December 31, December 31, 
                                                           1998          1997         1996       1995(1)    
<S>                                                    <C>           <C>          <C>          <C>          
NET ASSET VALUE - BEGINNING OF PERIOD                    $ 15.39       $ 13.28      $ 11.37      $10.00     
Net investment income (loss)                               (0.04)         0.03         0.05        0.05     
Net realized and unrealized appreciation                         
  (depreciation)                                            6.19          3.36         1.94        1.38
    TOTAL FROM INVESTMENT OPERATIONS                        6.15          3.39         1.99        1.43     
Distributions: 
  From net investment income                                  --         (0.03)       (0.05)      (0.05)    
  From net realized gains from investments                 (0.04)        (1.25)       (0.01)      (0.01)    
  In excess of realized gains from investment                     
   transactions                                               --            --        (0.02)         -- 
    TOTAL DISTRIBUTIONS                                    (0.04)        (1.28)       (0.08)      (0.06)    
    NET INCREASE (DECREASE) IN NET ASSET VALUE              6.11          2.11         1.91        1.37     
NET ASSET VALUE-END OF PERIOD                            $ 21.50       $ 15.39      $ 13.28      $11.37     
TOTAL RETURN                                               40.03%        25.48%       17.52%      18.82%(3) 
RATIOS AND SUPPLEMENTAL DATA: 
  Net assets end of period (000)                         $25,177       $15,840      $11,542      $6,435     
  Ratio of net expenses to average net assets               0.95%         0.91%        0.85%       0.85%(3) 
  Ratio of expenses to average net assets excluding          
   waivers                                                  1.23%         1.26%        1.65%       3.15%(3)
  Ratio of net investment income (loss) to average           
   net assets                                               (.25)%         .21%         .49%        .81%(3)
  Portfolio turnover                                        44.8%         51.0%        23.1%        4.5%(3) 
</TABLE>



<TABLE>
<CAPTION>
                                                          Intrinsic Value Fund              Bond Fund
                                                        -------------------------    ------------------------
                                                      
                                                        Year Ended    Year Ended     Year Ended    Year Ended  
                                                        December 31,  December 31,   December 31,  December 31, 
                                                             1998       1997(2)           1998       1997(2)   
<S>                                                      <C>          <C>             <C>         <C>          
NET ASSET VALUE - BEGINNING OF PERIOD                      $ 11.53      $ 10.00         $ 10.44     $ 10.00      
Net investment income (loss)                                  0.21         0.12            0.57        0.37      
Net realized and unrealized appreciation                           
  (depreciation)                                             (0.58)        1.57            0.31        0.45 
    TOTAL FROM INVESTMENT OPERATIONS                         (0.37)        1.69            0.88        0.82      
Distributions: 
  From net investment income                                 (0.21)       (0.12)          (0.58)      (0.37)     
  From net realized gains from investments                   (0.20)       (0.04)          (0.01)      (0.01)     
  In excess of realized gains from investment                      
   transactions                                              (0.05)          --              --          --
    TOTAL DISTRIBUTIONS                                      (0.46)       (0.16)          (0.59)      (0.38)     
    NET INCREASE (DECREASE) IN NET ASSET VALUE               (0.83)        1.53            0.29        0.44      
NET ASSET VALUE-END OF PERIOD                              $ 10.70      $ 11.53         $ 10.73     $ 10.44      
TOTAL RETURN                                                 -3.31%       25.26%(3)        8.66%      12.29%(3)
RATIOS AND SUPPLEMENTAL DATA: 
  Net assets end of period (000)                           $22,501      $13,926         $60,892     $34,230      
  Ratio of net expenses to average net assets                 0.95%        0.95%(3)        0.75%       0.75%(3)
  Ratio of expenses to average net assets excluding           
   waivers                                                    1.27%        1.22%(3)        0.81%        .77%(3)
  Ratio of net investment income (loss) to average            
   net assets                                                 1.90%        1.83%(3)        5.36%       5.97%(3)
  Portfolio turnover                                          39.3%        19.6%(3)        14.5%       14.8%(3)
</TABLE>




(1) Commenced operations on March 30, 1995.

(2) Commenced operations on May 1, 1997.

(3) Annualized.



                 See accompanying notes to financial statements.


<PAGE>   127





REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS



To the Trustees and Shareholders of the
   Pegasus Variable Funds:

     We have audited the accompanying statements of assets and liabilities,
including the portfolios of investments, of the PEGASUS VARIABLE FUNDS
(comprising as indicated in Note 1, the Growth and Value, Mid-Cap Opportunity,
Growth, Intrinsic Value and Bond Funds) as of December 31, 1998, and the related
statements of operations for the year then ended, the statements of changes in
net assets for each of the two years in the period then ended and the financial
highlights for each of the years from inception (as indicated in Note 1) through
December 31, 1998. These financial statements and financial highlights are the
responsibility of the Fund's management. Our responsibility is to express an
opinion on these financial statements and financial highlights based on our
audits.

     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included physical counts and confirmation of
securities owned as of December 31, 1998, by inspection and correspondence with
custodians, banks and brokers. An audit also includes assessing the accounting
principles used and significant estimates made by management, as well as
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for our opinion.

     In our opinion, the financial statements and financial highlights referred
to above present fairly, in all material respects, the financial position of
each of the respective funds constituting the Pegasus Variable Funds as of
December 31, 1998, and the results of their operations for the year then ended,
the changes in their net assets for each of the two years in the period then
ended and their financial highlights for each of the periods from inception (as
indicated in Note 1) through December 31, 1998, in conformity with generally
accepted accounting principles.


                                                ARTHUR ANDERSEN LLP

Detroit, Michigan,
February 12, 1999.




<PAGE>   128
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                                 ANNUAL REPORT
                               DECEMBER 31, 1998
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   129
 
                       THE ONE GROUP(R) INVESTMENT TRUST
                                 ANNUAL REPORT
                               DECEMBER 31, 1998
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                                                           <C>
Management Discussion of Fund Performance:
     Government Bond Fund...................................    1
     Asset Allocation Fund..................................    3
     Growth Opportunities Fund..............................    5
     Large Company Growth Fund..............................    7
     Equity Index Fund......................................    9
 
Report of Independent Accountants...........................   11
 
Statements of Investments:
     Government Bond Fund...................................   12
     Asset Allocation Fund..................................   14
     Growth Opportunities Fund..............................   19
     Large Company Growth Fund..............................   24
     Equity Index Fund......................................   27
 
Statements of Assets and Liabilities........................   34
Statements of Operations....................................   35
Statements of Changes in Net Assets.........................   36
Financial Highlights........................................   38
Notes to Financial Statements...............................   43
</TABLE>
<PAGE>   130
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                              GOVERNMENT BOND FUND
                               DECEMBER 31, 1998
 
HOW DID THE FUND PERFORM?
For the year ended December 31, 1998, the Government Bond Fund posted a total
return of 7.32%.
 
                        HYPOTHETICAL $10,000 INVESTMENT
<TABLE>
<CAPTION>
<S>                                                   <C>
$1,400                                                 $14,103
 1,300                                                 $13,977 (Gov't Bond)
 1,200
 1,100
 1,000
  9000
     8/1/94  12/31/94  12/31/95  12/31/96  12/31/97  12/31/98
 
- -.-  Government Bond  -..- Solomon Bros. 3-7 Yr. Treas./Gov't
</TABLE>
- --------------------------------------------------------------
*Initial public offering commenced August 1, 1994.

<TABLE>
<CAPTION>
                              Government Bond Fund
                          Average Annual Total Return
                        ---------------------------------
                        <S>              <C>
                        One Year         Since Inception
                        ---------------------------------
                          7.32%                7.87%
                        ---------------------------------
</TABLE>
           Past performance is not predictive of future performance.





HOW WOULD YOU CHARACTERIZE THE BOND MARKET DURING 1998?
1998 will be characterized as one of the most volatile periods for the fixed
income markets. During the year, interest rates declined overall as the economic
flu that attacked Southeast Asia in late 1997 spread to Russia and Latin
America. (The yield on the 10-year Treasury, for example, declined from 5.74% to
4.66%.)
 
These economic problems along with the fear of further contagion through the
developed world, especially the United States, led to a significant increase in
interest rate volatility and a huge flight to quality. For this reason, spreads
on non-Treasury securities significantly deteriorated, and illiquidity became a
concern in the markets. In addition, as non-Treasury borrowing cost rose (as the
result of the illiquidity), several large and very leveraged investors were
forced into liquidation, which only compounded the market problems. These events
led the Federal Reserve to ease monetary policy in the fall, which significantly
helped the markets return to more "normal" behavior.
 
WHAT HAPPENED IN THE MORTGAGE-BACKED SECTOR?
The decline in interest rates (both in January and in the fall) provided
borrowers with the best opportunities to refinance their homes since 1993. The
rapid increase in prepayments led to a significant shortening of mortgage
durations, and to large cash flows that needed to be invested at the new lower
interest rates. In addition, the rise in quality spreads meant that
mortgage-backed spreads needed to rise to compensate for both the larger
prepayment risk and the competing yields from other fixed income products. Due
to these factors, mortgages were the worst-performing fixed income sector for
the one-year period, lagging Treasuries, agencies and corporate securities.
 
                 THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               1
<PAGE>   131
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                        GOVERNMENT BOND FUND (CONTINUED)
                               DECEMBER 31, 1998
 
HOW DID THIS INFLUENCE FUND PERFORMANCE?
With an average mortgage position of 68%, the Fund suffered from its focus on
mortgage securities. As interest rates declined, the duration of our mortgage-
backed component dropped sharply. Because our strategy involves maintaining
stable portfolio duration close to five years, the cost of maintaining this
duration rose sharply as interest rate volatility increased, also negatively
affecting the performance of the Fund.
 
WHAT WAS THE FUND'S PRIMARY INVESTMENT STRATEGY?
As always, the Fund's strategy is to maximize total rate of return while
maintaining a very stable duration of approximately five years. (Duration is a
measure of a fund's sensitivity to interest rate changes. A higher number
indicates greater sensitivity; a lower number indicates less.) Furthermore, the
Fund invests only in assets that are directly or indirectly guaranteed by the
U.S. government.
 
In our efforts to maximize the Fund's income return, we typically invest a
significant portion of the Fund in mortgage-backed securities that represent
attractive value. Because mortgage-backed durations tend to fluctuate with
changes in interest rates, we must constantly adjust the Fund's duration in
order to maintain total portfolio duration of five years.
 
This strategy is successful when undervalued mortgage securities appreciate to
their full value and when interest rate volatility remains low to moderate.
However, during 1998, interest rate volatility was very strong, which created
problems for mortgage-backed securities.
 
WHAT IS YOUR OUTLOOK FOR THE MARKET?
We expect interest rates to remain stable or decline slightly in 1999, as the
U.S. economy slows down in response to the economic problems abroad. In
addition, we expect the overall level of volatility to gradually decline, as the
uncertainty relating to emerging markets and the economic flu dissipates. In
this environment, we expect mortgage-backed securities to perform well, which
may help the Fund recapture some of the luster that it lost in 1998.
 
/s/ Gary J. Madich
Gary J. Madich
Senior Managing Director of Fixed Income Securities
 
The Fund's composition is subject to change.
Please refer to the prospectus and the accompanying financial statements for
further information about your Fund.
 
 2              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   132
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                             ASSET ALLOCATION FUND
                               DECEMBER 31, 1998
 
HOW DID THE FUND PERFORM?
For the year ended December 31, 1998, the Asset Allocation Fund posted a total
return of 19.09%.
 
                        HYPOTHETICAL $10,000 INVESTMENT
<TABLE>
<CAPTION>
<S>                                                   <C>
$30,000                                                $29,377
 25,000                                                $22,055
 20,000                                                $19,509
 15,000                                                $13,929
 10,000
     8/1/94  12/31/94  12/31/95  12/31/96  12/31/97  12/31/98
 
- -.-  Asset Allocation             -..-      Blended Index**
- -0- LB Interm Gov't Corp          -00-       S&P 500
</TABLE>
- --------------------------------------------------------------
 *Initial public offering commenced August 1, 1994.
**Blended Index consists of 60% S&P 500 & 40% Lipper Intermediate
  U.S. Government Bond Index

<TABLE>
<CAPTION>
                             Asset Allocation Fund
                          Average Annual Total Return
                        ---------------------------------
                        <S>              <C>
                        One Year         Since Inception
                        ---------------------------------
                         19.09%              16.32%
                        ---------------------------------
</TABLE>
           Past performance is not predictive of future performance.





 
WHAT WAS YOUR PRIMARY ASSET ALLOCATION STRATEGY?
In November 1998 we increased the Fund's equity weighting by 3 percentage
points, bringing the Fund's asset allocation to 60% equities and 40% fixed
income securities. Our research indicated that while stock valuations remained
fairly high, interest rates were easing. This prompted the slight shift toward
equities.
 
HOW DID EVENTS PLAY OUT IN THE FUND'S EQUITY PORTFOLIO?
Overall, corporate profits exceeded expectations throughout the year,
contributing to the market's strong performance. At the same time, a favorable
interest rate environment helped support additional gains in the market.
 
The Fund's equity philosophy is research driven. Our bottom-up stock selection
philosophy led to attractive results in the Fund's equity portfolio. Instead of
trying to time the market or focus on certain market sectors, we rely on
fundamental research to select individual stocks from all market sectors. As a
result, the Fund's stock portfolio represents the "best ideas" of the equity
research team.
 
Equity returns primarily were driven by stock selection in the following areas:
technology (America Online, up 164%; Dell Computer, up 248%), energy (Exxon, up
22%), capital equipment (Tyco, up 67%), retail (Wal-Mart, up 107%), and consumer
capital spending (Medusa, up 42%).
 
                 THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               3
<PAGE>   133
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                       ASSET ALLOCATION FUND (CONTINUED)
                               DECEMBER 31, 1998
 
WHAT WERE THE TOP 10 HOLDINGS IN THE EQUITY PORTFOLIO?*
As of December 31, 1998, the Fund's top 10 equity holdings included Microsoft
(technology), General Electric (capital goods), Intel (technology), Cisco
Systems (technology), IBM (technology), Exxon (energy), Wal-Mart (retail),
Bristol Myers Squibb (health care), Philip Morris (consumer non-durable) and MCI
WorldCom (utilities).
 
HOW DID EVENTS PLAY OUT IN THE FIXED INCOME PORTFOLIO?
In general, the bond market benefited from the overall decline in interest rates
throughout 1998. The most significant event, though, was a late-summer rally in
the U.S. Treasury market that was sparked by the ongoing economic problems in
Asia, Russia and Latin America. This flight-to-quality, which lasted into
October, pushed Treasuries ahead of all other bond market sectors for 1998.
 
Our ongoing strategy is to maintain diversity among government, agency
mortgage-backed and corporate securities, with a focus on non-Treasury sectors.
Our research indicates that over the long term, non-Treasury sectors tend to
outperform Treasuries, and we will continue to pursue this strategy. At the end
of the year, 14% of the Fund's portfolio was invested in government securities,
16% in mortgage-backed securities and 7.5% in corporate and asset-backed
securities.
Credit quality within the Fund's bond portfolio remained high, with 81% of the
portfolio's securities AAA-rated, 3% AA-rated, 13% A-rated and 4% BBB-rated.
(Percentages are rounded.)
 
WHAT IS YOUR OUTLOOK FOR THE FINANCIAL MARKETS AND THE FUND?
We plan to maintain the Fund's current asset allocation mix and investment
strategies, as we expect the U.S. economy to maintain steady, albeit slower,
growth during 1999. Of course, we will continue to monitor valuation levels in
the financial markets and watch for signs of inflationary pressures. Any changes
may warrant a shift in our strategy.
 
In the stock market, we expect corporate earnings growth to decelerate, and,
thus, we look for more "normal" performance from the stock market. We plan to
maintain our sector neutrality/research-driven stock selection process, which
presents opportunities in various industries and companies.
 
Because we expect economic growth to slow somewhat, we plan to upgrade the bond
portfolio's holdings by slightly reducing its corporate and asset-backed
securities. Our outlook for mortgage-backed securities remains positive, and we
have increased the portfolio's exposure to this sector.
 
/s/ Richard R. Jandrain III
Richard R. Jandrain III
Senior Managing Director of Equity Securities
 
* The Fund's composition is subject to change.
Please refer to the prospectus and the accompanying financial statements for
further information about your Fund.
 
 4              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   134
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                           GROWTH OPPORTUNITIES FUND
                               DECEMBER 31, 1998
 
HOW DID THE FUND PERFORM?
The Growth Opportunities Fund posted a total return of 38.82% for the year ended
December 31, 1998.
 
                        HYPOTHETICAL $10,000 INVESTMENT
<TABLE>
<CAPTION>
<S>                                                   <C>
$30,000                                                 $27,319
 25,000                                                 $25,082
 20,000                                                 $18,433
 15,000
 10,000
     8/1/94* 12/31/94  12/31/95  12/31/96  12/31/97  12/31/98
 
- -.-  Growth Opportunities      -..- Russell 2000
- -0- S&P/BARRA Midcap 400 Growth

</TABLE>
- --------------------------------------------------------------
*Initial public offering commenced August 1, 1994.

<TABLE>
<CAPTION>
                           Growth Opportunities Fund
                          Average Annual Total Return
                       ---------------------------------
                        <S>              <C>
                        One Year         Since Inception
                       ---------------------------------
                         38.82%                23.13%
                        ---------------------------------
</TABLE>
           Past performance is not predictive of future performance.
 
The Russell 2000, an unmanaged index, is generally representative of small to
mid-sized companies. The S&P/BARRA Midcap 400 Growth Index, an unmanaged index,
represents the highest price to book securities in the S&P Midcap 400 Index. The
benchmark index for the Growth Opportunities Fund will be changing from the
Russell 2000 to the S&P/BARRA Midcap 400 Growth Index in order to better
represent the investment policies of the Fund for comparison purposes.
 
TO WHAT DO YOU ATTRIBUTE THE FUND'S SOLID RETURN?
Despite a severe stock market downturn in late summer and early fall,
medium-capitalization growth stocks continued to benefit from a strong economy,
solid corporate earnings, low inflation and low interest rates. In addition to
these factors, the Fund's performance has benefited from good stock selection.
Instead of looking for stocks based on general economic or market trends, we
evaluate stocks on an individual basis, searching for those with appealing
fundamentals.
 
WHAT WERE YOUR PRIMARY STRATEGIES AND TACTICS?
Our primary investment strategy is to identify high growth companies within
attractive, fast-growing industries. We look for companies that will benefit
from strong management teams and competitive advantages. These factors should
allow sustained high growth at a rate that outpaces the industry average.
 
After the Asian crisis erupted, we evaluated the impact of the fallout. Many of
the Fund's technology companies had significant Asian exports, so we cut certain
technology holdings to lessen the impact that decreased Asian demand would have
on these companies. At the same time, we increased our retail holdings because
many of these companies purchase materials from Asia. As such, these retailers
were able to benefit from lower prices on Asian imports.
 
                 THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               5
<PAGE>   135
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                     GROWTH OPPORTUNITIES FUND (CONTINUED)
                               DECEMBER 31, 1998
 
DID THE PORTFOLIO BENEFIT FROM ANY PARTICULARLY STRONG HOLDINGS?*
The Fund enjoyed outstanding performance from computer manufacturer Dell
Computer, up 248% for the year; online services provider America Online, up
164%, and technology company Compuware, up 144%.
 
WHAT WERE THE FUND'S TOP TEN HOLDINGS?*
At year-end, the Fund's top 10 holdings included Coca-Cola Enterprises (consumer
non-durable), BMC Software (technology), Just for Feet (retail), AES Corp.
(utilities), AFLAC (financial services), America Online, USA Waste Services
(capital equipment), Compuware, Kohl's (retail) and Staples (retail).
 
WHAT IS YOUR OUTLOOK FOR THE FUND?
Looking ahead, we remain optimistic about continued U.S. economic growth and low
inflation. However, we think that economic growth will slow somewhat. We believe
that interest rates may continue to decline, which would support ongoing stock
market growth, but perhaps not at the unusually strong pace we've seen over the
last several years. As such, it seems prudent to lower our expectations somewhat
for the next year.
 
Our overall strategy remains intact -- to search for companies with strong
fundamentals, effective management teams and favorable long-term growth rates.
Because the Asian situation remains unresolved, we will continue to monitor its
effects on the Fund's holdings.
 
/s/ Ashi Parikh
Ashi Parikh
Managing Director, Growth Equity Team
 
/s/ Richard R. Jandrain III
Richard R. Jandrain III
Senior Managing Director of Equity Securities
 
* The Fund's composition is subject to change.
Please refer to the prospectus and the accompanying financial statements for
more information about your fund.
 
 6              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   136
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                           LARGE COMPANY GROWTH FUND
                               DECEMBER 31, 1998
 
HOW DID THE FUND PERFORM?
The Large Company Growth Fund posted a total return of 41.27% for the year ended
December 31, 1998.
 
                        HYPOTHETICAL $10,000 INVESTMENT
<TABLE>
<CAPTION>
<S>                                                   <C>
$35,000                                                $34,602
 30,000                                                $29,377
 25,000                                                $27,133
 20,000
 15,000
 10,000
     8/1/94* 12/31/94  12/31/95  12/31/96  12/31/97  12/31/98
 
- -.-  Large Co.               -..- S&P 500
- -0-  S&P/BARRA 500 Growth
</TABLE>
- --------------------------------------------------------------
*Initial public offering commenced August 1, 1994.

<TABLE>
<CAPTION>
                           Large Company Growth Fund
                          Average Annual Total Return
                        ---------------------------------
                        <S>              <C>
                        One Year         Since Inception
                        ---------------------------------
                          41.27%               25.34%
                        ---------------------------------
</TABLE>
           Past performance is not predictive of future performance.
 
The S&P 500, an unmanaged index, is generally representative of the performance
of large companies in the U.S. stock market. The S&P/BARRA 500 Growth Index, an
unmanaged index, represents the highest price to book securities in the S&P 500.
The benchmark index for the Large Company Growth Fund will be changing from the
S&P 500 to the S&P/BARRA 500 Growth Index in order to better represent the
investment policies of the Fund for comparison purposes.
 
TO WHAT DO YOU ATTRIBUTE THE FUND'S SOLID RETURN?
Despite global economic crises and a strong stock market downturn in late summer
and early fall, a strong domestic economy, low inflation and declining interest
rates all worked together to maintain a favorable equity environment. Once
again, the market favored the largest growth-oriented companies because of their
earnings reliability and stock liquidity.
 
WHAT WERE YOUR PRIMARY STRATEGIES AND TACTICS?
Our primary investment strategy during this market climate has been to find good
companies within industries that are growing at a faster rate than the economy.
These are companies that have the ability to exhibit sustained growth at some
multiple of their underlying industry growth rate. In addition, we search for
strong management teams and superior product positioning.
 
After evaluating the impact of the Asian crisis on the Fund's stocks, we cut the
portfolio's technology holdings because much of these companies' exports went to
Asia. We also increased our retail holdings, as many of these companies purchase
their materials from Asia and thus benefit from lower costs.
 
                 THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               7
<PAGE>   137
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                     LARGE COMPANY GROWTH FUND (CONTINUED)
                               DECEMBER 31, 1998
 
DID THE PORTFOLIO BENEFIT FROM ANY PARTICULARLY STRONG HOLDINGS?*
The Fund enjoyed outstanding performance from computer manufacturer Dell
Computer, up 248% for the year; software giant Microsoft, up 115% and online
service provider America Online, up 164%.
 
WHAT WERE THE FUND'S TOP TEN HOLDINGS?*
At year-end, the Fund's top 10 holdings included Dell Computer, Lucent
Technologies (technology), General Electric (capital goods), Microsoft,
Coca-Cola (consumer non-durable), Wal-Mart (retail), Merck (health care),
Bristol-Myers Squibb (health care), Pfizer (health care) and Proctor & Gamble
(consumer non-durable).
 
WHAT IS YOUR OUTLOOK FOR THE FUND?
Looking ahead, we remain optimistic about continued U.S. economic growth and low
inflation. However, we think that economic growth will slow down somewhat. We
believe that interest rates may continue to decline, which would support ongoing
stock market growth, but perhaps not at the unusually strong pace we've seen
over the last several years. As such, it seems prudent to lower our expectations
somewhat for the next year.
 
Our overall strategy remains intact--to search for companies with strong
fundamentals, effective management teams and favorable long-term outlooks.
Because the Asian situation remains unresolved, we will continue to monitor its
effects on the Fund's holdings.
 
/s/ Ashi Parikh
Ashi Parikh
Managing Director, Growth Equity Team
 
/s/ Richard R. Jandrain III
Richard R. Jandrain III
Senior Managing Director of Equity Securities
 
* The Fund's composition is subject to change.
Please refer to the prospectus and the accompanying financial statements for
more information about your fund.
 
 8              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   138
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                               EQUITY INDEX FUND
                               DECEMBER 31, 1998
 
HOW DID THE FUND PERFORM?
For the period May 1, 1998 to December 31, 1998, the Equity Index Fund posted a
total return of 10.52%.
 
                        HYPOTHETICAL $10,000 INVESTMENT
<TABLE>
<CAPTION>
<S>                                                   <C>
$12,000                                                $11,172
 11,500                                                $11,052
 11,000
 10,500
 10,000
     5/1/98                                          12/31/98
 
- -.-  S&P 500      -..- EQUITY INDEX
</TABLE>
- --------------------------------------------------------------
*Initial public offering commenced May 1, 1998.

<TABLE>
<CAPTION>
                               Equity Index Fund
                                  Total Return
                        ---------------------------------
                        <S>              <C>
                        One Year         Since Inception
                        ---------------------------------
                            NA               10.52%
                        ---------------------------------
</TABLE>
           Past performance is not predictive of future performance.
 
As it is designed to do, the Fund offered a return that nearly matched that of
the S&P 500 Index, the unmanaged group of stocks the Fund seeks to track. The
S&P 500 Index returned 11.72% for the period May 1, 1998 to December 31, 1998.
The slight difference in returns between the Fund and the Index is due to fees
and transaction costs charged to the Fund but not to the Index.
 
WHAT CONTRIBUTED TO SUCH A STRONG RETURN?
The market suffered a severe setback in late summer and early fall, but a series
of Federal Reserve interest rate cuts helped renew investor confidence in the
U.S. stock market. In addition, a strong economy, low inflation and favorable
corporate earnings growth helped generate attractive stock market returns for
yet another year. Once again, large-capitalization growth companies, the type
represented in the S&P 500 Index, outperformed other types of U.S. stocks.
 
WHICH MARKET SECTORS OFFERED NOTABLE PERFORMANCE?
The Fund offered exposure to 15 market sectors. Among those sectors, retail,
telephone utilities and technology offered the strongest performance. The retail
sector benefited from lower costs on Asian imports, while telephone utilities
advanced due to acquisition activity. Strong returns late in the year from the
largest technology companies helped boost the technology sector's overall
performance.
 
The weakest-performing sectors included energy and industrial commodities.
Energy stocks declined due to lower oil prices, and in the industrial
commodities sector (chemical, paper and metal companies), stocks suffered from a
lack of pricing power.
 
                 THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               9
<PAGE>   139
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   MANAGEMENT DISCUSSION OF FUND PERFORMANCE
 
                         EQUITY INDEX FUND (CONTINUED)
                               DECEMBER 31, 1998
 
WHAT WERE SOME OF THE STRONGEST AND WEAKEST STOCKS?*
The Fund enjoyed outstanding performance from a handful of stocks, including
technology provider Unisys, computer manufacturer Dell Computer, cable
television company Tele-Communications, financial service provider Providian
Financial, and auto manufacturer Ford Motor.
 
Weak earnings contributed to poor performance from certain holdings, including
diversified mining company Freeport-McMoran Copper and Gold, technology company
Advanced Micro Devices, and technology provider Cabletron Systems.
 
WHAT IS YOUR OUTLOOK FOR THE STOCK MARKET?
The environment for stocks should remain favorable during the coming year. We
expect economic growth to continue, but at a slower pace. We also expect
interest rates and inflation to remain low. Corporate earnings and stock prices
should continue to grow, but earnings are likely to come under increasing
pressure. Nevertheless, it's important to remember that returns of the last few
years have been unusually strong, and they probably are not sustainable. We
expect to see stock returns revert to more "normal" levels.
 
/s/ Richard R. Jandrain III
Richard R. Jandrain III
Senior Managing Director of Equity Securities
 
* The Fund's composition is subject to change.
Please refer to the prospectus and the accompanying financial statements for
more information about your Fund.
 
The S&P 500 Index is an unmanaged group of stocks generally representative of
the performance of large U.S.-based companies. Investors cannot purchase the
index directly, but they can invest in the underlying securities.
 
 10              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   140
 
REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Trustees and Shareholders of
The One Group(R) Investment Trust
 
In our opinion, the accompanying statements of assets and liabilities, including
the statements of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of the Government Bond Fund, the Asset
Allocation Fund, the Growth Opportunities Fund, the Large Company Growth Fund,
and the Equity Index Fund (five of the portfolios constituting The One Group
Investment Trust, hereafter referred to as the "Trust"), at December 31, 1998,
and the results of each of their operations, the changes in each of their net
assets and the financial highlights for each of the periods presented, in
conformity with generally accepted accounting principles. These financial
statements and financial highlights (hereafter referred to as "financial
statements") are the responsibility of the Trust's management; our
responsibility is to express an opinion on these financial statements based on
our audits. We conducted our audits of these financial statements in accordance
with generally accepted auditing standards which require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement presentation.
We believe that our audits, which included confirmation of securities at
December 31, 1998 by correspondence with the custodian and brokers, provide a
reasonable basis for the opinion expressed above.
 
PricewaterhouseCoopers LLP
Columbus, Ohio
February 17, 1999
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               11
<PAGE>   141
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                              GOVERNMENT BOND FUND
 
                 STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998
 
<TABLE>
<CAPTION>
- ----------------------------------------------------------
PRINCIPAL    SECURITY                             VALUE
- ----------------------------------------------------------
<C>          <S>                               <C>
             U.S. GOVERNMENT AND AGENCY OBLIGATIONS
             (27.7%)
$1,500,000   FHLB, 6.145%, 09/30/02            $ 1,548,166
 1,000,000   FNMA Disc. Note, 5.25%, 01/15/03    1,007,977
   600,000   FNMA Disc. Note, 5.75%, 04/15/03      616,292
   975,000   Resolution Funding Corp.,
             Principal STRIP, 10/15/08             593,549
 3,500,000   Resolution Funding Corp.,
             Principal STRIP, 10/15/16           1,271,718
 1,000,000   Resolution Funding Corp.,
             Principal STRIP, 10/15/17             342,398
 2,000,000   Resolution Funding Corp.,
             Principal STRIP, 01/15/20             600,956
 4,000,000   Resolution Funding Corp.,
             Principal STRIP, 07/15/20           1,172,932
 1,000,000   U.S. Treasury Bond, 6.25%,
             08/15/23 (a)                        1,118,750
 1,000,000   U.S. Treasury Inflation
             Protection Security, 3.625%,
             01/15/08 (a)                          995,154
   900,000   U.S. Treasury Notes, 7.50%,
             11/15/01 (a)                          967,218
   750,000   U.S. Treasury Notes, 6.50%,
             08/15/05 (a)                          824,062
   550,000   U.S. Treasury Notes, 6.875%,
             05/15/06 (a)                          621,672
                                               -----------
             TOTAL U.S. GOVERNMENT AND AGENCY
             OBLIGATIONS                        11,680,844
                                               -----------
             (cost $11,034,677)
             MORTGAGE-BACKED SECURITIES (68.6%)
    64,904   FGLMC 5Y, 6.50%, Pool #G50324,
             01/01/01                               64,886
   169,815   FGLMC 15Y, 8.50%, Pool #E20150,
             12/01/09                              176,509
   727,897   FGLMC 15Y, 7.00%, Pool #E63959,
             02/01/11                              744,420
   387,643   FGLMC 15Y, 6.00%, Pool #E00560,
             07/01/13                              389,221
 1,000,000   FGLMC 15Y, 6.50%, 01/01/14          1,015,320
   500,457   FGLMC 30Y, 8.00%, Pool #D55955,
             09/01/24                              518,623
   773,120   FGLMC 30Y, 6.50%, Pool #D65545,
             11/01/25                              778,755
   977,289   FGLMC 30Y, 6.00%, Pool #D70244,
             04/01/26                              966,567
   476,592   FGLMC 30Y, 8.50%, Pool #G00981,
             07/01/28                              499,168
 2,285,000   FHR, 2018 PE, 6.25%, 04/15/27       2,242,878
 1,400,000   FHR, 2075 PM, 6.25%, 08/15/28       1,336,056
 2,000,000   FHR, 2080 PJ, 6.50%, 08/15/28       2,027,048
 1,118,000   FHR, 2091 PG, 6.00%, 11/15/28       1,055,569
   363,330   FNMA 7Y, 7.00%, Pool #359952,
             09/01/03                              371,490
   249,440   FNMA 15Y, 7.50%, Pool #279759,
             08/01/09                              256,706
   225,793   FNMA 15Y, 6.50%, Pool #356206,
             11/01/11                              229,037
</TABLE>
 
<TABLE>
<CAPTION>
- ----------------------------------------------------------
PRINCIPAL    SECURITY                             VALUE
- ----------------------------------------------------------
<C>          <S>                               <C>
             MORTGAGE-BACKED SECURITIES
             (CONTINUED)
$  385,645   FNMA 30Y, 6.50%, Pool #250375,
             09/01/25                          $   388,352
   758,485   FNMA 30Y, 6.50%, Pool #341811,
             03/01/26                              763,513
   799,532   FNMA 30Y, 6.50%, Pool #338417,
             05/01/26                              804,832
   840,514   FNR, 97-26 GD, 7.00%, 07/17/05        858,498
   500,000   FNR, 98-37 VB, 6.00%, 01/17/13        483,330
   245,000   FNR, 93-155 PJ, 7.00%, 09/25/23       252,221
 1,000,000   FNR, 98-58 PC, 6.50%, 10/25/28        998,111
 1,500,000   GNR, 98-14 PG, 6.375%, 11/20/26     1,519,556
   500,000   GNR, 97-19 PJ, 6.50%, 06/20/27        492,831
 1,000,000   GNR, 98-22 PD, 6.50%, 09/20/28      1,001,086
   395,749   GNMA 30Y, 7.50%, Pool #326977,
             05/15/23                              408,009
   239,209   GNMA 30Y, 7.50%, Pool #359588,
             06/15/23                              246,619
   295,454   GNMA 30Y, 9.00%, Pool #780029,
             11/15/24                              316,153
   104,206   GNMA 30Y, 7.00%, Pool #405535,
             12/15/25                              106,653
   319,039   GNMA 30Y, 7.50%, Pool #2341,
             12/20/26                              326,970
   709,859   GNMA 30Y, 6.00%, Pool #80094,
             07/20/27                              718,178
   381,462   GNMA 30Y, 8.00%, Pool #412336,
             10/15/27                              396,301
   458,471   GNMA 30Y, 7.00%, Pool #412369,
             11/15/27                              469,039
   851,304   GNMA 30Y, 7.50%, Pool #427208,
             01/15/28                              877,728
   488,815   GNMA 30Y, 6.50%, Pool #467705,
             03/15/28                              493,707
   495,787   GNMA 30Y, 7.00%, Pool #472543,
             04/15/28                              507,254
   483,708   GNMA 30Y, 7.00%, Pool #472679,
             06/15/28                              494,896
   458,421   GNMA 30Y, 7.50%, Pool #780828,
             07/15/28                              472,650
   249,347   GNMA 30Y, 6.50%, Pool #467225,
             09/15/28                              251,843
   996,681   GNMA 30Y, 6.00%, Pool#2657,
             10/20/28                              982,986
   999,127   GNMA 30Y, 7.00%, Pool #469699,
             11/15/28                            1,022,236
   600,000   GNMA 30Y, 6.50%, Pool #2689,
             12/20/28                              602,825
                                               -----------
             TOTAL MORTGAGE-BACKED SECURITIES   28,928,630
                                               -----------
             (cost $28,751,462)
</TABLE>
 
 12              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   142
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                              GOVERNMENT BOND FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ----------------------------------------------------------
PRINCIPAL    SECURITY                             VALUE
- ----------------------------------------------------------
<C>          <S>                               <C>
             SHORT TERM DEBT (1.7%)
$  703,000   FMC Discount Note 0.00%,
             01/20/99 (cost $701,358)          $   701,399
                                               -----------
- ----------
    SHARES
- ----------
             MUTUAL FUNDS (3.8%)
 1,623,986   The One Group Government Money
             Market Fund                         1,623,986
                                               -----------
             (cost $1,623,986)
             TOTAL INVESTMENTS                 $42,934,859
                                               ===========
             (cost $42,111,483)
</TABLE>
 
- --------------------------------------------------------------------------------
 
Cost for federal income tax purposes: $42,111,483
 
The abbreviations in the above statement stand for the following:
    FGLMC  Federal Home Loan Mortgage Corporation Gold
    FHLB   Federal Home Loan Bank
    FNR     Fannie Mae REMIC
    FNMA   Federal National Mortgage Association
    FHR     Federal Home Loan Mortgage Corporation REMIC
    GNMA  Government National Mortgage Association
    GNR    Ginnie Mae REMIC
    REMIC  Real Estate Mortgage Investment Conduit
    STRIP   Separate Trading of Registered Interest and Principal Securities
 
Portfolio holding percentages represent market value as a percentage of net
assets.
 
(a) A portion of this security was loaned as of December 31, 1998.
 
See accompanying notes to financial statements.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               13
<PAGE>   143
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                             ASSET ALLOCATION FUND
 
                 STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             COMMON STOCK (59.6%)
             AIRCRAFT (0.3%)
     3,100   Lockheed Martin Corp.           $    262,725
                                             ------------
             APPAREL (0.2%)
     8,810   Jones Apparel Group, Inc.*           194,371
       300   Warnaco Group, Inc. Class A            7,575
                                             ------------
                                                  201,946
                                             ------------
             BANKS (5.3%)
    14,540   BankAmerica Corp.                    874,217
    10,080   Charter One Financial, Inc.          279,720
     9,590   Chase Manhattan Corp.                652,719
    15,520   Citigroup, Inc.                      768,240
     7,080   First Union Corp.                    430,552
    12,590   MBNA Corp.                           313,963
     6,520   National City Corp.                  472,700
     7,230   PNC Bank Corp.                       391,324
    10,770   SouthTrust Corp.                     397,817
     4,800   State Street Corp.                   333,900
    14,250   Wells Fargo Co.                      569,109
                                             ------------
                                                5,484,261
                                             ------------
             BEVERAGES (0.8%)
     9,470   Coca Cola Co.                        633,306
     4,820   Coca-Cola Enterprises, Inc.          172,315
                                             ------------
                                                  805,621
                                             ------------
             BROADCASTING (1.9%)
    10,150   Belo, (AH) Corp. Series A            202,366
     8,740   Tele-Communications, Inc.
             Class A*                             483,431
    12,200   Time Warner, Inc.                    757,163
     6,860   Viacom, Inc. Class B*                507,640
                                             ------------
                                                1,950,600
                                             ------------
             BUSINESS EQUIPMENT & SERVICES (1.0%)
     5,510   Herman Miller, Inc.                  148,081
     7,230   Office Depot, Inc.*                  267,058
    10,100   Service Corp. International          384,431
     4,230   Waste Management, Inc.               197,224
                                             ------------
                                                  996,794
                                             ------------
             CAPITAL EQUIPMENT (0.4%)
     9,900   Teleflex, Inc.                       451,688
                                             ------------
             CHEMICALS-PETROLEUM & INORGANIC (0.6%)
     7,290   Du Pont (E.I.) De Nemours &
             Co.                                  386,826
     3,700   Monsanto Co.                         175,750
                                             ------------
                                                  562,576
                                             ------------
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             CHEMICALS-SPECIALTY (1.6%)
     7,350   Crompton & Knowles Corp.        $    152,053
     5,620   Cytec Industries, Inc.*              119,425
     2,320   Eastman Chemical Co.                 103,820
     8,820   Ferro Corp.                          229,320
     9,710   Morton International, Inc.           237,895
     6,630   Nalco Chemical Co.                   205,530
     6,330   Olin Corp.                           179,218
    11,910   RPM, Inc., Ohio                      190,560
     3,130   Sigma-Aldrich Corp.                   91,944
     9,050   Wellman, Inc.                         92,197
                                             ------------
                                                1,601,962
                                             ------------
             COMMUNICATION EQUIPMENT (2.6%)
     7,140   BMC Software, Inc.*                  318,176
    15,600   Cisco Systems, Inc.*               1,447,875
     8,250   Lucent Technologies, Inc.            907,500
                                             ------------
                                                2,673,551
                                             ------------
             COMPUTERS-MAIN/MINI (1.4%)
     7,600   International Business
             Machines Corp.                     1,404,100
                                             ------------
             COMPUTERS-MICRO (1.0%)
    14,330   Dell Computer Corp.*               1,048,777
                                             ------------
             COMPUTERS-PERIPHERAL (3.4%)
     7,240   American Power Conversion
             Corp.*                               350,687
     8,770   Cadence Design Systems, Inc.*        260,907
     6,460   EMC Corp.*                           549,100
    16,820   Microsoft Corp.*                   2,332,724
                                             ------------
                                                3,493,418
                                             ------------
             CONSTRUCTION MATERIALS (0.2%)
     1,130   Martin Marietta Materials,
             Inc.                                  70,272
     2,100   Southdown, Inc.                      124,294
                                             ------------
                                                  194,566
                                             ------------
             COSMETIC/TOILETRY (0.1%)
     5,910   Revlon, Inc. Class A*                 97,146
                                             ------------
             ELECTRICAL EQUIPMENT (3.5%)
     7,290   Emerson Electric Co. (a)             441,045
    20,180   General Electric Co.               2,059,621
     3,240   Hubbell, Inc. Class B                123,120
     5,020   Johnson Controls, Inc.               296,180
     8,860   Tyco International Ltd.              668,376
                                             ------------
                                                3,588,342
                                             ------------
</TABLE>
 
 14              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   144
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                             ASSET ALLOCATION FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             ELECTRONIC COMPONENTS (2.0%)
    12,300   Intel Corp.                     $  1,458,319
     6,470   Maxim Integrated Products,
             Inc.*                                282,658
     4,880   SCI Systems, Inc.* (a)               281,820
                                             ------------
                                                2,022,797
                                             ------------
             ELECTRONIC INSTRUMENTS (0.2%)
     5,210   Applied Materials, Inc.*             222,402
                                             ------------
             FINANCE COMPANIES (0.2%)
     4,680   Associates First Capital Corp.       198,315
                                             ------------
             FOOD & RELATED (1.6%)
    17,030   Archer-Daniels-Midland Co.           292,703
     6,160   General Mills, Inc.                  478,940
     5,680   Interstate Bakeries Corp. (a)        150,165
    14,760   Sara Lee Corp.                       416,048
     7,310   Smithfield Foods, Inc.*              247,626
                                             ------------
                                                1,585,482
                                             ------------
             FOREST/PAPER PRODUCT (0.9%)
    12,110   Kimberly Clark Corp.                 659,995
     7,230   Pentair, Inc.                        287,844
                                             ------------
                                                  947,839
                                             ------------
             FURNITURE (0.6%)
    11,410   Leggett & Platt, Inc.                251,020
    13,230   Masco Corp.                          380,363
                                             ------------
                                                  631,383
                                             ------------
             HEALTH CARE-DRUGS (2.3%)
     4,420   Cardinal Health, Inc. (a)            335,367
       100   Elan Corp. PLC ADR* (a)                6,956
     4,650   Merck & Co., Inc.*                   686,747
     3,150   Pfizer, Inc.                         395,128
    15,190   Schering-Plough Corp.                839,248
     1,950   Watson Pharmaceuticals, Inc.*        122,606
                                             ------------
                                                2,386,052
                                             ------------
             HEALTH CARE-GENERAL (4.2%)
    13,470   American Home Products Corp.         758,529
     7,230   Bausch & Lomb, Inc.                  433,800
     4,910   Boston Scientific, Inc.* (a)         131,649
     9,460   Bristol-Meyers Squibb Co.          1,265,866
     7,360   IDEXX Laboratories, Inc.*            198,030
     3,470   Johnson & Johnson                    291,046
     2,440   Sofamor Danek Group, Inc.*           297,070
     5,190   Sybron International Corp.*          141,103
    10,660   Warner-Lambert Co.                   801,499
                                             ------------
                                                4,318,592
                                             ------------
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             HOSPITAL SUPPLY & MANAGEMENT (0.6%)
     8,150   Medtronic, Inc.                 $    605,138
                                             ------------
             HOTELS & GAMING (0.4%)
    11,860   Hilton Hotels Corp.                  226,823
     5,290   MGM Grand, Inc.* (a)                 143,491
                                             ------------
                                                  370,314
                                             ------------
             HOUSEHOLD-GENERAL PRODUCT (1.1%)
     3,850   Lancaster Colony Corp.               123,681
     9,100   Newell Co.                           375,375
     3,960   Procter & Gamble Co.                 361,598
     8,370   Rubbermaid, Inc.                     263,132
                                             ------------
                                                1,123,786
                                             ------------
             INSURANCE-LIFE (0.2%)
     4,210   Equitable Cos., Inc.                 243,654
                                             ------------
             INSURANCE-PROPERTY/CASUALTY (1.8%)
     9,040   Allstate Corp.                       349,170
     5,550   American International Group,
             Inc.                                 536,269
     5,210   CIGNA Corp.                          402,798
     8,450   Hartford Financial Services
             Group, Inc.                          463,694
     2,320   PMI Group, Inc.                      114,550
                                             ------------
                                                1,866,481
                                             ------------
             LEISURE TIME PRODUCTS (0.6%)
     9,460   Hasbro, Inc.                         341,742
    10,120   Walt Disney Co.                      303,600
                                             ------------
                                                  645,342
                                             ------------
             MOTOR VEHICLE PARTS (0.5%)
     6,080   Danaher Corp.                        330,220
     4,980   Lear Corp.*                          191,730
                                             ------------
                                                  521,950
                                             ------------
             PETROLEUM-DOMESTIC (1.0%)
     4,710   Ashland, Inc.                        227,846
     4,150   Devon Energy Corp. (a)               127,353
     6,510   Tosco Corp.                          168,446
     6,630   Ultramar Diamond Shamrock
             Corp.                                160,778
    13,100   USX-Marathon Group                   394,638
                                             ------------
                                                1,079,061
                                             ------------
             PETROLEUM-INTERNATIONAL (2.5%)
    18,520   Exxon Corp.                        1,354,275
    12,450   Royal Dutch Petroleum Co.            596,044
    10,870   Texaco, Inc.                         574,751
                                             ------------
                                                2,525,070
                                             ------------
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               15
<PAGE>   145
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                             ASSET ALLOCATION FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             PETROLEUM-SERVICES (0.2%)
     3,850   Halliburton Co.                 $    114,056
     3,880   Transocean Offshore, Inc.            104,033
                                             ------------
                                                  218,089
                                             ------------
             RESTAURANTS (0.2%)
     4,890   Outback Steakhouse, Inc.*            194,989
                                             ------------
             RETAIL-FOOD STORES (0.8%)
     7,900   Kroger Co.*                          477,950
     6,370   Safeway, Inc.*                       388,172
                                             ------------
                                                  866,122
                                             ------------
             RETAIL-GENERAL MERCHANT (2.4%)
     8,680   Dayton Hudson Corp.                  470,890
    11,900   Family Dollar Stores, Inc.           261,800
     6,260   Kohls Corp.*                         384,599
    16,540   Wal-Mart Stores, Inc.              1,346,976
                                             ------------
                                                2,464,265
                                             ------------
             RETAIL-SPECIALTY (0.6%)
       100   Abercrombie & Fitch*                   7,075
    14,500   Just For Feet, Inc.*                 251,938
       200   Saks, Inc.*                            6,313
     9,720   Williams Sonoma, Inc.*               391,838
                                             ------------
                                                  657,164
                                             ------------
             SECURITY & COMMERCIAL BROKER (1.5%)
     4,220   Bear Stearns Cos., Inc. (a)          157,722
    10,820   Fannie Mae                           800,680
     8,120   Morgan Stanley Dean Witter &
             Co.                                  576,520
                                             ------------
                                                1,534,922
                                             ------------
             TIMESHARE & SOFTWARE (0.5%)
     3,410   America Online, Inc.*                545,600
                                             ------------
             TOBACCO (1.4%)
    22,040   Philip Morris Cos., Inc.           1,179,140
     8,120   UST, Inc.                            283,185
                                             ------------
                                                1,462,325
                                             ------------
             UTILITIES-ELECTRIC (1.7%)
     8,790   Baltimore Gas and Electric Co.       271,391
     8,150   Cinergy Corp.                        280,156
    11,160   Energy East Corp.                    630,540
     9,740   GPU, Inc.                            430,386
     5,050   LG & E Energy Corp.                  142,978
                                             ------------
                                                1,755,451
                                             ------------
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             UTILITIES-GAS/PIPELINE (0.6%)
     6,760   El Paso Energy Corp.            $    235,332
    12,980   Williams Cos., (The)                 404,814
                                             ------------
                                                  640,146
                                             ------------
             UTILITIES-TELEPHONE (4.7%)
     7,630   Century Telephone Enterprises,
             Inc.                                 515,025
    11,570   GTE Corp.                            752,050
    16,260   MCI WorldCom, Inc.*                1,166,655
     8,200   Qwest Communications
             International, Inc.*                 410,000
    20,570   SBC Communications, Inc.           1,103,066
     9,860   Sprint Corp.                         829,473
     4,200   Sprint PCS Group, Inc.*               97,125
                                             ------------
                                                4,873,394
                                             ------------
             TOTAL COMMON STOCK                61,324,198
                                             ------------
             (cost $50,917,898)
- ----------
 PRINCIPAL
- ----------
             CORPORATE BONDS (7.0%)
             BANKS (1.4%)
$  250,000   Banco Central Hispano, 7.50%,
             06/15/05                             266,350
   250,000   BankAmerica Corp., 8.125%,
             02/01/02                             268,525
   376,000   First Hawaiian, Inc., 6.25%,
             08/15/00                             379,883
   250,000   Huntington National Bank,
             6.75%, 06/15/03                      261,488
   230,000   Society National Bank, 6.75%,
             06/15/03                             239,287
                                             ------------
                                                1,415,533
                                             ------------
             BROKER DEALERS (0.5%)
   300,000   Goldman Sachs Group, 7.20%,
             03/01/07                             317,563
   200,000   Morgan Stanley Group, 6.50%,
             03/30/01                             203,778
                                             ------------
                                                  521,341
                                             ------------
             DIVERSIFIED FINANCE (2.3%)
   200,000   Associates Corp. of North
             America, 6.375%, 07/15/02            205,107
   300,000   Boatmens Bancshares, 6.75%,
             03/15/03                             312,425
   250,000   Chrysler Financial Corp.,
             5.875%, 02/07/01                     252,675
   200,000   Ford Capital, 9.375%, 05/15/01       216,606
   250,000   GMAC Medium Term Note, 8.25%,
             02/24/04                             279,110
   465,000   Lockheed Corp., 6.75%,
             03/15/03                             483,136
   333,000   McDonnel Douglas Finance,
             6.45%, 12/05/02                      343,242
   300,000   Tyco International, 6.25%,
             06/15/13                             303,105
                                             ------------
                                                2,395,406
                                             ------------
</TABLE>
 
 16              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   146
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                             ASSET ALLOCATION FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
PRINCIPAL    SECURITY                           VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             OIL & GAS (0.5%)
$  248,000   Columbia Gas Systems, 6.80%,
             11/28/05                        $    261,841
   250,000   Occidental Petroleum, 9.25%,
             08/01/19                             283,672
                                             ------------
                                                  545,513
                                             ------------
             RENTAL SERVICES (0.2%)
   250,000   Hertz Corp., 6.00%, 01/15/03         251,537
                                             ------------
             RETAIL (0.8%)
   250,000   Dayton Hudson Co., 7.25%,
             09/01/04                             270,244
   250,000   J.C. Penny & Co., 7.25%,
             04/01/02                             260,196
   250,000   Sears Roebuck Acceptance
             Corp., 7.13%, 05/02/03               262,572
                                             ------------
                                                  793,012
                                             ------------
             TELECOMMUNICATIONS (0.5%)
   250,000   AT&T Corp., 7.50%, 06/01/06          281,625
   200,000   Ohio Bell Telephone Co.,
             5.75%, 05/01/00                      201,711
                                             ------------
                                                  483,336
                                             ------------
             TRANSPORTATION (0.5%)
   250,000   Hunt, J.B., Transport, 6.25%,
             09/01/03                             248,379
   250,000   International Lease, 5.875%,
             01/15/01                             251,681
                                             ------------
                                                  500,060
                                             ------------
             UTILITIES (0.3%)
   250,000   Virginia Electric & Power Co.,
             6.625%, 04/01/03                     261,851
                                             ------------
             TOTAL CORPORATE BONDS              7,167,589
                                             ------------
             (cost $7,001,847)
             ASSET-BACKED SECURITIES (0.5%)
   250,000   Chemical Master 95-2, 6.23%,
             06/15/03                             254,205
   250,000   Circuit City 1995 1-A, 6.375%,
             08/15/05                             254,622
                                             ------------
             TOTAL ASSET-BACKED SECURITIES        508,827
                                             ------------
             (cost $504,591)
             MORTGAGE-BACKED SECURITIES (15.7%)
   303,905   FNMA 7Y, 6.50%, Pool #250357,
             09/01/02                             308,272
   486,528   FNMA 15Y, 6.00%, Pool #251900,
             08/01/13                             487,900
   105,248   FNMA 30Y, 7.00%, Pool #270725,
             08/01/25                             107,435
 1,000,000   FNMA 15Y, 7.50%, Pool #292020,
             08/01/09                           1,029,130
   901,336   FNMA 30Y, 8.50%, Pool #313280,
             12/15/28                             955,741
   497,348   FNMA 15Y, 6.00%, Pool #323458,
             11/01/13                             498,751
   191,122   FNMA 30Y, 7.50%, Pool #402032,
             10/01/27                             196,282
   461,756   FNMA 15Y, 6.50%, Pool #414513,
             04/01/13                             468,396
   398,311   FNMA 15Y, 7.00%, Pool #427488,
             06/01/13                             406,986
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
PRINCIPAL    SECURITY                           VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             MORTGAGE-BACKED SECURITIES (CONTINUED)
$  992,866   FNMA 30Y, 6.00%, Pool #428970,
             06/01/28                        $    980,048
   996,437   FNMA 30Y, 6.50%, Pool #433526,
             08/01/28                           1,003,362
   552,203   FGLMC 30Y, 8.00%, Pool
             #C00476, 09/01/26                    571,745
   996,384   FGLMC 30Y, 6.00%, Pool
             #C13638, 08/01/28                    984,138
   325,144   FGLMC 30Y, 7.50%, Pool
             #D81027, 07/01/27                    333,946
   418,560   FGLMC 30Y, 7.00%, Pool
             #D83256, 10/01/27                    426,797
   473,877   FGLMC 15Y, 6.50%, Pool
             #E00552, 06/01/13                    481,137
   445,110   FGLMC 15Y, 7.00%, Pool
             #E00554, 06/01/13                    455,080
   458,354   FGLMC 15Y, 6.00%, Pool
             #E69409, 03/01/13                    460,220
   468,647   FGLMC 15Y, 6.50%, Pool
             #E69466, 03/01/13                    476,291
   455,167   FGLMC 30Y, 8.50%, Pool
             #G00981, 07/01/28                    476,728
   498,341   GNMA 30Y, 6.00%, Pool #2657,
             11/01/28                             491,494
   489,769   GNMA 30Y, 6.50%, Pool #430634,
             03/15/28                             494,672
   496,359   GNMA 15Y, 6.50%, Pool #468228,
             09/15/13                             505,462
 1,000,000   GNMA 15Y, 7.00%, Pool #348872,
             07/15/08                           1,029,410
   166,194   GNMA 15Y, 7.00%, Pool #412559,
             02/15/11                             170,937
   177,130   GNMA 30Y, 7.50%, Pool #398663,
             05/15/26                             182,525
   331,409   GNMA 30Y, 7.50%, Pool #2360,
             01/20/27                             339,827
   420,183   GNMA 30Y, 8.00%, Pool #451932,
             09/15/27                             436,528
   405,966   GNMA 30Y, 7.00%, Pool #473915,
             04/15/28                             415,356
   438,534   GNMA 30Y, 7.50%, Pool #465069,
             05/15/28                             452,146
   497,296   GNMA 30Y, 7.00%, Pool #477123,
             06/15/28                             508,797
                                             ------------
             TOTAL MORTGAGE-BACKED
             SECURITIES                        16,135,539
                                             ------------
             (cost $15,975,589)
             U.S. GOVERNMENT OBLIGATIONS (13.8%)
 5,700,000   U.S. Treasury Note, 6.50%,
             08/31/01                           5,958,284
 2,275,000   U.S.Treasury Note, 7.25%,
             05/15/04 (a)                       2,549,422
 2,500,000   U.S.Treasury Note, 7.00%,
             07/15/06 (a)                       2,846,875
 2,175,000   U.S. Treasury Bond, 7.875%,
             02/15/21 (a)                       2,866,243
                                             ------------
             TOTAL U.S. GOVERNMENT
             OBLIGATIONS                       14,220,824
                                             ------------
             (cost $13,635,973)
             FOREIGN GOVERNMENT OBLIGATIONS (0.5%)
   500,000   Province of Quebec, 6.50%,
             01/17/06                             522,420
                                             ------------
             (cost $504,525)
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               17
<PAGE>   147
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                             ASSET ALLOCATION FUND
<TABLE> 
<CAPTION>  
         STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
- ---------------------------------------------------------
  SHARES     SECURITY                           VALUE
- ---------------------------------------------------------
<S>         <C>                              <C>
            MUTUAL FUNDS (2.4%)
 2,459,200   The One Group Prime Money
             Market Fund                     $  2,459,200
                                             ------------
             (cost $2,459,200)
- ----------
 PRINCIPAL
- ----------
             SHORT-TERM SECURITIES HELD AS COLLATERAL
             (1.3%)
$1,353,206   Lehman Brothers A2/P2
             Tri-Party Repurchase Agreement
             5.50%, dated 12/31/98, due
             01/04/99, collateralized by
             RACERS 1998-MM-12-2, 06/07/99,
             market value $1,420,940            1,353,206
                                             ------------
             (cost $1,353,206)
             TOTAL INVESTMENTS               $103,691,803
                                             ============
             (cost $92,352,829)
</TABLE>
 
- --------------------------------------------------------------------------------
Cost for federal income tax purposes: $92,379,235
 
 * Denotes a non-income producing security.
 
The abbreviations in the above statement stand for the following:
 
<TABLE>
<CAPTION>
    <S>    <C>
    ADR    American Depository Receipt
    FGLMC  Federal Home Loan Mortgage Corporation Gold
    FNMA   Federal National Mortgage Association
    GNMA   Government National Mortgage Association
    PLC    Public Limited Company
</TABLE>
 
Portfolio holding percentages represent market value as percentage of net
assets.
 
(a) A portion of this security was loaned as of December 31, 1998.
 
See accompanying notes to financial statements.
 
 18              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   148
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           GROWTH OPPORTUNITIES FUND
 
                 STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            COMMON STOCK (97.5%)
            AIR TRANSPORTATION (0.3%)
    8,600   Airborne Freight Corp.         $    310,137
                                           ------------
            AIRCRAFT (0.1%)
      200   United Technologies Corp.            21,750
                                           ------------
            APPAREL (0.4%)
   18,200   Jones Apparel Group, Inc.*          401,538
                                           ------------
            BANKS (3.1%)
      325   Associated Banc-Corp.                11,111
    9,700   City National Corp.                 403,762
      100   Fifth Third Bancorp.                  7,131
      400   First Security Corp.                  9,350
   18,900   First Tennessee National
            Corp.                               719,381
    1,300   Marshall & Ilsley Corp.              75,969
   18,900   North Fork Bancorp., Inc.           452,419
      100   Northern Trust Corp.                  8,731
   20,600   Sovereign Bancorp., Inc.            293,550
      100   State Street Corp.                    6,956
    1,100   Union Planters Corp.                 49,844
    3,600   Wilmington Trust Corp.              221,850
   10,400   Zions Bancorp                       648,700
                                           ------------
                                              2,908,754
                                           ------------
            BEVERAGES (0.1%)
      600   Coca-Cola Enterprises, Inc.          21,450
                                           ------------
            BROADCASTING (0.2%)
    6,600   TCA Cable TV, Inc.                  235,537
                                           ------------
            BUSINESS EQUIP. & SERVICE (7.0%)
   23,000   Allied Waste Industries,
            Inc.*                               543,375
    7,200   Cambridge Tech Partners,
            Inc.*                               159,300
   16,300   Cintas Corp.                      1,148,131
   20,800   Comdisco, Inc.                      351,000
    3,400   Convergys Corp.* (a)                 76,075
   10,200   Corrections Corp. of America*       179,775
    3,100   GTech Holdings Corp.*                79,437
   14,600   Herman Miller, Inc.                 392,375
      100   Interpublic Group of Cos.,
            Inc.                                  7,975
   12,900   Manpower, Inc.                      324,919
   13,100   Modis Professional Services,
            Inc.*                               189,950
    8,900   NOVA Corp.*                         308,719
      500   Omnicom Group, Inc.                  29,000
    1,900   Pittston Brink's Group               60,562
   15,700   Reynolds & Reynolds Co. Class
            A                                   360,119
    7,850   Staples, Inc.*                      342,947
   14,366   Sterling Commerce, Inc.*            646,470
   20,300   Sungard Data Systems, Inc.*
            (a)                                 805,656
</TABLE>
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            BUSINESS EQUIP. & SERVICE (CONTINUED)
    8,000   Viad Corp.                     $    243,000
    7,000   Wallace Computer Services,
            Inc.                                184,625
      300   Waste Management, Inc.               13,987
                                           ------------
                                              6,447,397
                                           ------------
            CAPITAL EQUIPMENT (1.0%)
    9,075   Diebold, Inc.                       323,864
    2,100   Donaldson Co., Inc.                  43,575
      500   Flowserve Corp.                       8,281
    9,200   Sundstrand Corp.                    477,250
    4,800   UCAR International, Inc.*            85,500
                                           ------------
                                                938,470
                                           ------------
            CHEMICALS--PETROLEUM & INORGANIC (0.6%)
   11,200   Lyondell Petrochemical Co.          201,600
   17,000   Solutia, Inc.                       380,375
                                           ------------
                                                581,975
                                           ------------
            CHEMICALS--SPECIALTY (1.3%)
   12,200   Crompton & Knowles Corp.            252,387
    6,000   Cytec Industries, Inc.*             127,500
    5,900   Ferro Corp.                         153,400
    5,100   Vulcan Materials Co. (a)            670,969
                                           ------------
                                              1,204,256
                                           ------------
            COMMUNICATION EQUIPMENT (2.7%)
   24,100   ADC Telecommunications, Inc.*       837,475
      100   Cisco Systems, Inc.*                  9,281
    9,600   Comverse Technology, Inc.*          681,600
   20,600   Fore Systems, Inc.*                 377,237
      300   Northern Telecom Ltd. (a)            15,037
    9,200   Symbol Technology, Inc.             588,225
      500   Telefonaktiebolaget LM
            Ericsson ADR                         11,969
      300   Tellabs, Inc.*                       20,569
                                           ------------
                                              2,541,393
                                           ------------
            COMPUTERS--MAIN/MINI (0.1%)
      100   Xerox Corp.                          11,800
                                           ------------
            COMPUTERS--MICRO (0.3%)
    3,700   Dell Computer Corp.*                270,794
                                           ------------
            COMPUTERS--PERIPHERAL (12.1%)
   13,300   American Power Conversion
            Corp.*                              644,219
    2,100   Beyond.com Corp.* (a)                43,575
   32,000   Cadence Design Systems, Inc.*       952,000
    6,100   Citrix Systems, Inc.*               592,081
   32,700   Compuware Corp.*                  2,554,687
      300   Creative Technology Ltd.*             4,500
    8,800   Electronic Arts, Inc.*              493,900
    8,600   Intuit, Inc.*                       623,500
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               19
<PAGE>   149
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           GROWTH OPPORTUNITIES FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            COMPUTERS--PERIPHERAL (CONTINUED)
   12,300   Keane, Inc.*                   $    491,231
   11,700   Lexmark International Group,
            Inc.*                             1,175,850
    3,400   Maxtor Corp.*                        47,600
      400   Microsoft Corp.*                     55,475
   22,850   Networks Associates, Inc.*        1,513,812
      700   Peoplesoft, Inc.*                    13,256
   13,400   Platinum Technology, Inc.*
            (a)                                 256,275
   12,700   Siebel Systems, Inc.*               431,006
   17,700   Storage Technology Corp.*           629,456
    2,700   Structural Dynamics Research
            Corp.*                               53,662
    5,600   Symantec Corp.*                     121,800
    9,900   Synopsys, Inc.*                     537,075
                                           ------------
                                             11,234,960
                                           ------------
            CONSTRUCTION MATERIALS (0.8%)
   12,300   American Standard Cos.*             442,800
    5,200   Martin Marietta Materials,
            Inc.                                323,375
                                           ------------
                                                766,175
                                           ------------
            ELECTRICAL EQUIPMENT (0.2%)
    5,300   Federal Signal Corp.                145,087
      300   Hubbell, Inc. Class B                11,400
      200   Tyco International Ltd.              15,087
                                           ------------
                                                171,574
                                           ------------
            ELECTRONIC COMPONENTS (8.3%)
   13,200   Altera Corp.*                       803,550
   44,433   Analog Devices, Inc.*             1,394,085
   11,700   Linear Technology Corp.           1,047,881
   26,500   Maxim Integrated Products,
            Inc.*                             1,157,719
   11,700   Microchip Technology, Inc.*
            (a)                                 432,900
   10,500   SCI Systems, Inc.* (a)              606,375
   17,400   Solectron Corp.*                  1,617,112
   10,100   Xilinx, Inc.* (a)                   657,762
                                           ------------
                                              7,717,384
                                           ------------
            ELECTRONIC INSTRUMENTS (0.1%)
      300   Applied Materials, Inc.*             12,806
                                           ------------
            FINANCE COMPANIES (1.4%)
    4,800   Capital One Financial Corp.         552,000
   16,350   Robert Half International,
            Inc.*                               730,641
    1,700   UniCapital Corp.*                    12,537
                                           ------------
                                              1,295,178
                                           ------------
            FOOD & RELATED (2.3%)
    9,200   Dean Foods Co.                      375,475
   12,400   Dole Food Co., Inc. (a)             372,000
   14,600   Flowers Industries, Inc.            349,487
   15,100   General Nutrition Cos., Inc.*       245,375
   10,800   Interstate Bakeries Corp. (a)       285,525
</TABLE>
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            FOOD & RELATED (CONTINUED)
   14,100   McCormick & Co., Inc.          $    476,756
    2,200   Vlasic Foods International,
            Inc.*                                52,387
      200   Wrigley (Wm.) Jr. Co.                17,912
                                           ------------
                                              2,174,917
                                           ------------
            FOREST/PAPER PRODUCTS (0.6%)
      200   Sealed Air Corp.*                    10,212
   14,650   Sonoco Products Co.                 434,006
    5,100   Wausau-Mosinee Paper Corp.           90,206
                                           ------------
                                                534,424
                                           ------------
            FURNITURE/FURNISHINGS (1.4%)
    9,200   Hon Industries, Inc.                220,225
   28,900   Leggett & Platt, Inc.               635,800
   19,000   Shaw Industries, Inc.               460,750
                                           ------------
                                              1,316,775
                                           ------------
            HEALTH CARE--DRUGS (7.2%)
   14,700   Biogen, Inc.*                     1,220,100
    2,647   Cardinal Health, Inc. (a)           200,841
   10,500   Centocor, Inc.*                     473,812
    5,100   Covance, Inc.*                      148,537
      500   Eli Lilly & Co.                      44,437
   12,200   Forest Labs, Inc.*                  648,887
   10,000   ICN Pharmaceuticals, Inc.           226,250
   16,100   McKesson Corp. (a)                1,272,906
   17,600   Mylan Laboratories, Inc. (a)        554,400
   13,400   Quintiles Transnational
            Corp.*                              715,225
    1,000   Schering-Plough Corp.                55,250
   17,600   Watson Pharmaceuticals, Inc.*     1,106,600
                                           ------------
                                              6,667,245
                                           ------------
            HEALTH CARE--GENERAL (3.3%)
    1,700   Allegiance Corp.                     79,263
    2,500   Beckman Coulter, Inc.               135,625
      300   Bristol-Meyers Squibb Co.            40,144
   12,000   Dentsply International, Inc.        309,000
    9,400   Hillenbrand Industries, Inc.        534,625
   16,800   Omnicare, Inc. (a)                  583,800
    9,900   Steris Corp.*                       281,531
   26,300   Sybron International Corp.*         715,031
   12,800   Total Renal Care Holdings,
            Inc.* (a)                           378,400
      500   Warner-Lambert Co.                   37,594
                                           ------------
                                              3,095,013
                                           ------------
            HOSPITAL SUPPLY & MANAGEMENT (3.0%)
    2,100   Concentrated Managed Care,
            Inc.* (a)                            22,444
   12,500   First Health Group Corp.*           207,031
   20,000   Foundation Health Systems,
            Inc*                                238,750
      200   Guidant Corp.                        22,050
      800   HBO & Co.                            22,950
</TABLE>
 
 20              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   150
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           GROWTH OPPORTUNITIES FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            HOSPITAL SUPPLY & MANAGEMENT (CONTINUED)
      600   HCR Manor Care, Inc.*          $     17,625
   35,550   Health Management Associates,
            Inc. Class A*                       768,769
      200   HealthSouth Corp.*                    3,088
    6,800   Lincare Holdings, Inc.* (a)         275,825
   14,200   Oxford Health Plans, Inc.*          211,225
    4,800   PSS World Medical, Inc.*            110,400
   13,700   Quorum Health Group, Inc.*          177,244
   13,600   Stryker Corp. (a)                   748,850
                                           ------------
                                              2,826,251
                                           ------------
            HOTELS & GAMING (0.5%)
   17,200   International Game Technology       418,175
      600   Marriott International, Inc.
            Class A                              17,400
      475   Promus Hotel Corp.*                  15,378
                                           ------------
                                                450,953
                                           ------------
            HOUSEHOLD--GENERAL PRODUCTS (0.8%)
      300   Colgate-Palmolive Co.                27,863
   15,300   Dial Corp. (The) (a)                441,788
    8,450   Lancaster Colony Corp.              271,456
                                           ------------
                                                741,107
                                           ------------
            INSURANCE--LIFE (2.0%)
   41,400   AFLAC, Inc.                       1,821,600
      200   SunAmerica, Inc.                     16,225
                                           ------------
                                              1,837,825
                                           ------------
            INSURANCE--PROPERTY & CASUALTY (0.1%)
      200   American International Group,
            Inc.                                 19,325
      300   MGIC Investment Corp.                11,944
                                           ------------
                                                 31,269
                                           ------------
            LEISURE TIME INDUSTRIES (0.1%)
      500   Callaway Golf Co.                     5,125
      100   Walt Disney Co.                       3,000
                                           ------------
                                                  8,125
                                           ------------
            METAL FABRICATION (0.4%)
    8,500   Fastenal Co. (a)                    374,000
                                           ------------
            MOTOR VEHICLE PARTS (2.3%)
   21,400   Danaher Corp.                     1,162,288
    8,600   Federal-Mogul Corp.                 511,700
    3,500   Kaydon Corp.                        140,219
    4,800   SPX Corp.                           321,600
                                           ------------
                                              2,135,807
                                           ------------
            MOTOR VEHICLES (1.1%)
   21,100   Harley-Davidson, Inc.               999,613
                                           ------------
</TABLE>
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            MULTIPLE INDUSTRY (0.5%)
    4,500   Celestica, Inc.* (a)           $    111,094
   15,100   Whitman Corp.                       383,163
                                           ------------
                                                494,257
                                           ------------
            NON-RESIDENT CONSTRUCTION (0.1%)
    3,400   Newport News Shipbuilding,
            Inc.                                113,688
                                           ------------
            PETROLEUM--DOMESTIC (0.1%)
   14,400   Ocean Energy, Inc.                   90,900
                                           ------------
            PETROLEUM--SERVICES (1.1%)
      300   BJ Services Co.*                      4,688
      600   Ensco International, Inc.             6,413
   32,100   Global Marine, Inc.*                294,919
      500   Halliburton Co.                      14,813
    1,200   Nabors Industries, Inc.* (a)         16,275
      300   R & B Falcon Corp.*                   2,288
    1,582   Schlumberger Ltd.                    72,970
    6,700   Smith International, Inc.*          168,756
   16,700   Varco International, Inc.*          129,425
   13,800   Weatherford International,
            Inc.*                               267,375
                                           ------------
                                                977,922
                                           ------------
            PUBLISHING (1.2%)
      300   Gannett Co., Inc.                    19,350
      200   McGraw-Hill Cos., Inc.               20,375
    3,500   Media General, Inc. Class A         185,500
      900   Meredith Corp.                       34,088
      200   Tribune Co.                          13,200
    1,400   Washington Post Co. Class B         809,113
                                           ------------
                                              1,081,626
                                           ------------
            RAILROAD (0.9%)
       92   Canadian National Railway Co.         4,773
   17,000   Kansas City Southern
            Industries, Inc.                    836,188
                                           ------------
                                                840,961
                                           ------------
            RESTAURANTS (1.3%)
    7,300   Outback Steakhouse, Inc.*           291,088
   15,500   Starbucks Corp.*                    869,938
                                           ------------
                                              1,161,026
                                           ------------
            RETAIL--FOOD STORES (0.1%)
      500   Walgreen Co.                         29,281
      400   Safeway, Inc.                        24,375
                                           ------------
                                                 53,656
                                           ------------
            RETAIL--GENERAL MERCHANDISE (0.8%)
      300   Dayton Hudson Corp.                  16,275
    2,195   Dollar General Corp.                 51,857
   28,100   Family Dollar Stores, Inc.          618,200
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               21
<PAGE>   151
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           GROWTH OPPORTUNITIES FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            RETAIL--GENERAL MERCHANDISE (CONTINUED)
      400   Kohls Corp.*                   $     24,575
    1,300   TJX Cos., Inc.                       37,700
      100   Wal-Mart Stores, Inc.                 8,144
                                           ------------
                                                756,751
                                           ------------
            RETAIL--SPECIALTY (7.0%)
   11,900   Abercrombie & Fitch Co.*            841,925
   10,000   Barnes & Noble, Inc.*               425,000
   21,100   Bed, Bath and Beyond, Inc.*         720,038
   18,500   Best Buy, Inc.*                   1,135,438
   12,900   Borders Group, Inc.*                321,694
      300   CompUSA, Inc.*                        3,919
        1   Consolidated Stores Corp.*               20
   12,000   Dollar Tree Stores, Inc.*           524,250
      400   Fred Meyer, Inc.*                    24,100
      750   Gap, Inc.                            42,188
      200   Home Depot, Inc.                     12,238
   96,000   Just For Feet, Inc.*              1,668,000
    4,200   Lands End, Inc.*                    113,138
    7,900   Ross Stores, Inc.                   311,063
      100   Tandy Corp.                           4,119
   16,600   The Finish Line, Inc.* (a)          132,800
    4,600   Tiffany & Co.                       238,625
                                           ------------
                                              6,518,555
                                           ------------
            SAVINGS & LOANS (0.1%)
    4,900   TCF Financial Corp.                 118,519
                                           ------------
            SECURITIES & COMMERCIAL BROKERS (0.8%)
      100   American Express Co.                 10,225
      100   Amresco, Inc.*                          875
      100   Fannie Mae                            7,400
      900   Franklin Resources, Inc.* (a)        28,800
   20,700   Price, T Rowe Associates,
            Inc. (a)                            708,975
      150   Schwab, Charles Corp.                 8,428
                                           ------------
                                                764,703
                                           ------------
            TEXTILE (0.5%)
    7,300   Unifi, Inc.                         142,806
   10,900   Westpoint Stevens, Inc.* (a)        344,031
                                           ------------
                                                486,837
                                           ------------
            TIMESHARE & SOFTWARE (14.0%)
   74,600   America Online, Inc.*            11,936,000
      600   Broadcast.com, Inc.* (a)             45,900
    1,200   Ebay, Inc.* (a)                     289,500
   12,250   Fiserv, Inc.*                       630,109
      150   Paychex, Inc.                         7,716
    6,100   Policy Management Systems
            Corp.*                              308,050
    3,500   Unigraphics Solutions, Inc.*         50,750
                                           ------------
                                             13,268,025
                                           ------------
</TABLE>
 
<TABLE>
<CAPTION>
- -------------------------------------------------------
   SHARES   SECURITY                              VALUE
- -------------------------------------------------------
<C>         <S>                            <C>
            TRUCKING (0.1%)
      400   CNF Transportation, Inc.       $     15,025
                                           ------------
            UTILITIES--ELECTRIC (1.3%)
    8,500   Interstate Energy Corp.             274,125
   31,600   LG & E Energy Corp.                 894,675
                                           ------------
                                              1,168,800
                                           ------------
            UTILITIES--GAS/PIPELINES (0.3%)
    5,200   K N Energy, Inc.                    189,150
      300   MCN Energy Group, Inc.                5,719
    8,000   Seagull Energy Corp.*                50,500
                                           ------------
                                                245,369
                                           ------------
            UTILITIES--TELEPHONE (2.1%)
      100   AirTouch Communications,
            Inc.*                                 7,213
      922   Alltel Corp.                         55,147
      200   Ameritech Corp.                      12,675
      200   Bell Atlantic Co.                    10,600
   21,700   Cincinnati Bell, Inc.               820,531
      191   Qwest Communications
            International, Inc.*                  9,550
   19,151   SBC Communications, Inc.          1,026,972
      100   U S West, Inc.                        6,463
                                           ------------
                                              1,949,151
                                           ------------
            TOTAL COMMON STOCK               90,392,423
                                           ------------
            (cost $66,829,488)
            MUTUAL FUNDS (2.5%)
2,296,023   The One Group Prime Money
            Market Fund                       2,296,023
                                           ------------
            (cost $2,296,023)
- ---------
PRINCIPAL
- ---------
            SHORT-TERM SECURITIES HELD AS COLLATERAL
            (9.4%)
$8,671,517  Lehman Brothers A2/P2
            Tri-Party Repurchase
            Agreement 5.50%, dated
            12/31/98, due 01/04/99,
            collateralized by RACERS
            1998-MM-12-2, 06/07/99,
            market value $9,105,568           8,671,517
                                           ------------
            (cost $8,671,517)
            TOTAL INVESTMENTS              $101,359,963
                                           ============
            (cost $77,797,028)
</TABLE>
 
 22              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   152
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           GROWTH OPPORTUNITIES FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
- --------------------------------------------------------------------------------
 
Cost for federal income tax purposes: $78,093,864
 
* Denotes a non-income producing security.
 
The abbreviations in the above statement stand for the following:
 
<TABLE>
    <S>    <C>
    ADR    American Depository Receipt
</TABLE>
 
Portfolio holding percentages represent market value as a percentage of net
assets.
 
(a) A portion of this security was loaned as of December 31, 1998.
 
See accompanying notes to financial statements.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               23
<PAGE>   153
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           LARGE COMPANY GROWTH FUND
 
                 STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             COMMON STOCK (95.1%)
             AIR TRANSPORT (0.1%)
     3,200   Southwest Airlines Co.          $     71,800
                                             ------------
             AIRCRAFT (0.2%)
     3,800   United Technologies Corp.            413,250
                                             ------------
             BANKS (2.9%)
    29,900   Chase Manhattan Corp.              2,035,069
     9,900   Fifth Third Bancorp.                 705,994
    26,175   MBNA Corp.                           652,739
    11,600   National City Corp.                  841,000
     8,200   State Street Corp.                   570,413
    24,966   US Bancorp Class A                   886,293
     2,100   Washington Mutual, Inc.               80,194
                                             ------------
                                                5,771,702
                                             ------------
             BEVERAGES (4.1%)
    12,900   Anheuser-Busch Cos., Inc.            846,562
    86,300   Coca Cola Co.                      5,771,312
     7,000   Coca-Cola Enterprises, Inc.          250,250
    36,000   PepsiCo, Inc.                      1,473,750
                                             ------------
                                                8,341,874
                                             ------------
             BROADCASTING (1.0%)
    13,700   Comcast Corp. Class A                804,019
    21,200   Tele-Communications, Inc.
             Class A*                           1,172,625
                                             ------------
                                                1,976,644
                                             ------------
             BUSINESS EQUIPMENT/SERVICES (0.8%)
     3,300   Omnicom Group, Inc.                  191,400
     8,300   Staples, Inc.*                       362,606
    23,900   Waste Management, Inc.             1,114,338
                                             ------------
                                                1,668,344
                                             ------------
             CHEMICALS--PETROLEUM AND INORGANIC (1.3%)
    31,100   Du Pont (E.I.) De Nemours &
             Co.                                1,650,244
    20,400   Monsanto Co.                         969,000
                                             ------------
                                                2,619,244
                                             ------------
             COMMUNICATION--EQUIPMENT (6.9%)
     5,800   Ascend Communications, Inc.*         381,350
    16,600   BMC Software, Inc.*                  739,737
    67,825   Cisco Systems, Inc.*               6,295,008
    46,650   Lucent Technologies, Inc.          5,131,500
    16,800   Northern Telecom Ltd. (a)            842,100
     7,000   Tellabs, Inc.*                       479,938
                                             ------------
                                               13,869,633
                                             ------------
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             COMPUTER--MAIN/MINI (3.8%)
    34,300   International Business
             Machines Corp.                  $  6,336,925
    10,900   Xerox Corp.                        1,286,200
                                             ------------
                                                7,623,125
                                             ------------
             COMPUTER--MICRO (2.7%)
    72,100   Dell Computer Corp.*               5,276,819
     4,100   Gateway 2000, Inc.*                  209,869
                                             ------------
                                                5,486,688
                                             ------------
             COMPUTER--PERIPHERAL (9.1%)
    18,950   Computer Associates
             International, Inc.                  807,744
       100   Compuware Corp.*                       7,812
    25,800   EMC Corp.*                         2,193,000
   104,100   Microsoft Corp.*                  14,437,369
    18,800   Oracle Corp.*                        810,750
    16,700   Parametric Technology Corp.*         271,375
                                             ------------
                                               18,528,050
                                             ------------
             COSMETIC AND TOILETRY (1.3%)
     6,600   Avon Products, Inc.                  292,050
    48,374   Gillette Co. (The)                 2,337,069
                                             ------------
                                                2,629,119
                                             ------------
             ELECTRICAL EQUIPMENT (7.1%)
    12,400   Emerson Electric Co.                 750,200
   116,800   General Electric Co.              11,920,900
    20,900   Tyco International Ltd.            1,576,644
                                             ------------
                                               14,247,744
                                             ------------
             ELECTRONIC COMPONENTS (3.5%)
    60,100   Intel Corp.                        7,125,606
                                             ------------
             FINANCE COMPANIES (0.1%)
     2,400   Capital One Financial Corp.          276,000
                                             ------------
             FOOD AND RELATED (3.0%)
     9,100   BestFoods                            484,575
    19,200   Campbell Soup Co.                  1,056,000
    11,000   ConAgra, Inc.                        346,500
    11,600   Heinz (H.J.) Co.                     656,850
     9,200   Kellogg Co. (a)                      313,950
     7,400   Ralston-Ralston Purina Group         239,575
    31,600   Sara Lee Corp.                       890,725
    24,100   Unilever N.V.                      1,998,794
        90   Vlasic Foods International,
             Inc.*                                  2,143
                                             ------------
                                                5,989,112
                                             ------------
             FOREST AND PAPER PRODUCTS (0.4%)
    16,200   Kimberly Clark Corp.                 882,900
                                             ------------
</TABLE>
 
 24              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   154
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           LARGE COMPANY GROWTH FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             HEALTHCARE--DRUGS (11.0%)
    42,400   Abbott Laboratories             $  2,077,600
     5,800   Amgen, Inc.*                         606,462
     9,300   Cardinal Health, Inc. (a)            705,637
    34,600   Eli Lilly & Co.                    3,075,075
    41,200   Merck & Co., Inc.*                 6,084,725
    47,400   Pfizer, Inc.                       5,945,737
    67,800   Schering-Plough Corp.              3,745,950
                                             ------------
                                               22,241,186
                                             ------------
             HEALTHCARE--GENERAL (7.8%)
    44,900   American Home Products Corp.       2,528,431
     7,500   Baxter International, Inc.           482,344
    14,000   Boston Scientific, Inc.* (a)         375,375
    42,000   Bristol-Meyers Squibb Co.          5,620,125
    43,200   Johnson & Johnson                  3,623,400
    42,000   Warner-Lambert Co.                 3,157,875
                                             ------------
                                               15,787,550
                                             ------------
             HOSPITAL SUPPLY AND MANAGEMENT (1.6%)
     4,100   Guidant Corp.                        452,025
    13,700   HBO & Co.                            393,019
     4,100   IMS Health, Inc.                     309,294
    27,000   Medtronic, Inc.                    2,004,750
                                             ------------
                                                3,159,088
                                             ------------
             HOTELS AND GAMING (0.1%)
     7,100   Hilton Hotels Corp. (a)              135,787
                                             ------------
             HOUSEHOLD--GENERAL PRODUCTS (2.9%)
    11,600   Colgate-Palmolive Co.              1,077,350
     5,900   Newell Co. (a)                       243,375
    50,500   Procter & Gamble Co.               4,611,281
                                             ------------
                                                5,932,006
                                             ------------
             INSURANCE--PROPERTY CASUALTY (1.7%)
    34,762   American International Group,
             Inc.                               3,358,878
                                             ------------
             LEISURE TIME INDUSTRY (0.1%)
     6,300   Mattel, Inc.                         143,719
                                             ------------
             MULTIPLE INDUSTRY (0.4%)
     9,900   Minnesota Mining &
             Manufacturing Co.                    704,137
                                             ------------
             PETROLEUM--SERVICES (0.5%)
     5,400   Halliburton Co.                      159,975
    19,100   Schlumberger Ltd.                    880,988
                                             ------------
                                                1,040,963
                                             ------------
             PUBLISHING (0.3%)
     9,500   Gannett Co., Inc.                    612,750
                                             ------------
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             RETAIL--FOOD STORES (0.8%)
    10,800   Kroger Co.*                     $    653,400
    17,900   Walgreen Co.                       1,048,269
                                             ------------
                                                1,701,669
                                             ------------
             RETAIL--GENERAL (4.4%)
     1,600   Costco Cos., Inc.*                   115,500
    11,600   Dayton Hudson Corp.                  629,300
     2,900   Family Dollar Stores, Inc.            63,800
     8,300   Kohls Corp.*                         509,931
    13,400   TJX Cos., Inc.                       388,600
    87,800   Wal-Mart Stores, Inc.              7,150,213
                                             ------------
                                                8,857,344
                                             ------------
             RETAIL--SPECIALITY (3.0%)
    13,300   CVS Corp.                            731,500
    15,750   GAP, Inc.                            885,937
    52,800   Home Depot, Inc.                   3,230,700
    77,000   Just For Feet, Inc.*               1,337,875
                                             ------------
                                                6,186,012
                                             ------------
             SECURITY AND COMMISSION BROKER (2.1%)
    14,600   American Express Co.               1,492,850
       400   Fannie Mae                            29,600
     9,600   Franklin Resources, Inc. (a)         307,200
    33,200   Freddie Mac                        2,139,325
        50   Marsh & McLennan Cos., Inc.            2,922
       100   Morgan Stanley Dean Witter &
             Co.                                    7,100
     1,600   Price, T Rowe Associates, Inc.
             (a)                                   54,800
     5,175   Schwab, Charles Corp.                290,770
                                             ------------
                                                4,324,567
                                             ------------
             TIMESHARE AND SOFTWARE (1.5%)
     7,800   America Online, Inc.* (a)          1,248,000
    10,800   Automatic Data Processing,
             Inc.                                 866,025
     4,500   Computer Science Corp.               289,969
    10,800   Entrust Technologies* (a)            257,850
     8,300   Paychex, Inc.                        426,931
                                             ------------
                                                3,088,775
                                             ------------
             TOBACCO (2.1%)
    77,100   Philip Morris Cos., Inc.           4,124,850
     4,200   UST, Inc.                            146,475
                                             ------------
                                                4,271,325
                                             ------------
             UTILITY--TELEPHONE (6.5%)
    17,400   AirTouch Communications, Inc.*     1,254,975
    37,400   Ameritech Corp.                    2,370,225
    51,800   Bell Atlantic Co.                  2,745,400
    33,300   GTE Corp.                          2,164,500
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               25
<PAGE>   155
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                           LARGE COMPANY GROWTH FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             UTILITY--TELEPHONE (CONTINUED)
    11,700   MCI WorldCom, Inc.              $    839,475
    69,100   SBC Communications, Inc.*          3,705,488
                                             ------------
                                               13,080,063
                                             ------------
             TOTAL COMMON STOCK               192,146,654
                                             ------------
             (cost $136,163,248)
             MUTUAL FUNDS (4.4%)
 8,835,574   The One Group Prime Money
             Market Fund (cost $8,835,574)      8,835,574
                                             ------------
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
PRINCIPAL    SECURITY                           VALUE
- ---------------------------------------------------------
<C>          <S>                             <C>
             REPURCHASE AGREEMENT (.5%)
$1,000,000   Prudential Securities, Inc.
             dated 12/31/98, due 01/04/99
             Collateralized by $931,000
             U.S. Treasury Note, 7.50%, due
             05/15/02, market value
             $1,020,148.00                   $  1,000,000
                                             ------------
             (cost $1,000,000)
             SHORT-TERM SECURITIES HELD AS COLLATERAL
             (1.6%)
 3,330,837   Lehman Brothers A2/P2
             Tri-Party Repurchase Agreement
             5.50%, dated 12/31/98, due
             01/04/99, collateralized by
             RACERS 1998-MM-12-2, 06/07/99,
             market value $3,497,562            3,330,837
                                             ------------
             (cost $3,330,837)
             TOTAL INVESTMENTS               $205,313,065
                                             ============
             (cost $149,329,659)
</TABLE>
 
- --------------------------------------------------------------------------------
 
Cost for federal income tax purposes: $149,403,223
 
 *  Denotes a non-income producing security.
 
Portfolio holding percentages represent market value as a percentage of net
assets.
 
(a) A portion of this security was loaned as of December 31, 1998.
 
See accompanying notes to financial statements.
 
 26              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   156
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                               EQUITY INDEX FUND
 
                 STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             COMMON STOCK (94.4%)
             AIR TRANSPORT (0.4%)
       300   AMR Corp.*                       $    17,812
       200   Delta Air Lines, Inc. (a)             10,400
       200   FDX Corp.*                            17,800
       450   Southwest Airlines Co.                10,097
       100   U.S. Airways Group, Inc.*              5,200
                                              -----------
                                                   61,309
                                              -----------
 
             AIRCRAFT (0.8%)
     1,400   Boeing Co., The                       45,675
       300   Lockheed Martin Corp.                 25,425
       100   Northrop Grumman Corp.                 7,312
       300   United Technologies Corp.             32,625
                                              -----------
                                                  111,037
                                              -----------
 
             ALUMINUM (0.3%)
       300   Alcan Aluminium Ltd.                   8,119
       300   Aluminum Co. of America               22,369
       100   Reynolds Metals Co.                    5,269
                                              -----------
                                                   35,757
                                              -----------
             APPAREL (0.2%)
       100   Fruit of the Loom, Inc.*               1,381
       100   Liz Claiborne, Inc.                    3,156
       400   Nike, Inc. Class B                    16,225
       100   Reebok International Ltd.*             1,487
       100   Russell Corp.                          2,031
       200   V.F. Corp.                             9,375
                                              -----------
                                                   33,655
                                              -----------
 
             BANKS (8.1%)
     1,000   Bank of New York Co., Inc.            40,250
     1,586   Bank One Corp.                        80,985
     2,392   BankAmerica Corp.                    143,819
       400   BankBoston Corp.                      15,575
       100   Bankers Trust Corp.                    8,544
       400   BB&T Corp.                            16,125
     1,200   Chase Manhattan Corp.                 81,675
     3,150   Citigroup, Inc.                      155,925
       200   Comerica, Inc.                        13,637
       400   Fifth Third Bancorp                   28,525
       100   Firstar Corp.                          9,325
     1,400   First Union Corp.                     85,137
       800   Fleet Financial Group, Inc.           35,750
       310   Huntington Bancshares, Inc.            9,319
       600   KeyCorp                               19,200
     1,050   MBNA Corp.                            26,184
       400   Mellon Bank Corp.                     27,500
       200   Mercantile Bancorp, Inc.               9,225
       200   Morgan, J P & Co., Inc.               21,012
       500   National City Corp.                   36,250
       200   Northern Trust Corp.                  17,462
       400   PNC Bank Corp.                        21,650
       300   Regions Financial Corp.               12,094
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             BANKS (CONTINUED)
       100   Republic New York Corp.          $     4,556
       200   State Street Corp.                    13,912
       200   Summit Bancorp.                        8,737
       300   Suntrust Banks, Inc.                  22,950
       350   Synovus Financial Corp.                8,531
       200   Union Planters Corp.                   9,062
     1,000   US Bancorp Class A                    35,500
       300   Wachovia Corp.                        26,231
       818   Washington Mutual, Inc.               31,237
     2,200   Wells Fargo Co.                       87,862
                                              -----------
                                                1,163,746
                                              -----------
 
             BEVERAGES (2.8%)
       100   Adolph Coors Co.                       5,644
       700   Anheuser-Busch Cos., Inc.             45,937
       100   Brown-Forman Corp. Class B             7,569
     3,400   Coca Cola Co.                        227,375
       500   Coca-Cola Enterprises, Inc.           17,875
     2,000   PepsiCo, Inc.                         81,875
       500   Seagram Co. Ltd.                      19,000
                                              -----------
                                                  405,275
                                              -----------
 
             BROADCASTING (2.1%)
     1,000   CBS Corp.                             32,750
       400   Clear Channel Communications,
             Inc.*                                 21,800
       500   Comcast Corp. Class A                 29,344
       100   King World Productions, Inc.*          2,944
       800   MediaOne Group, Inc.* (a)             37,600
       700   Tele-Communications, Inc. Class
             A*                                    38,719
     1,700   Time Warner, Inc.                    105,506
       500   Viacom, Inc. Class B*                 37,000
                                              -----------
                                                  305,663
                                              -----------
 
             BUSINESS EQUIPMENT & SERVICES (1.5%)
       200   Browning Ferris Industries             5,687
       100   Ceridian Corp.*                        6,981
       100   Deluxe Corp.*                          3,656
       200   Dun & Bradstreet Corp.                 6,312
       200   Ecolab, Inc.                           7,237
       700   Electronic Data Systems Corp.         35,175
       600   First Data Corp.                      19,012
       100   H&R Block, Inc.                        4,500
       100   IKON Office Solutions, Inc.              856
       200   Interpublic Group of Cos., Inc.       15,950
       500   Laidlaw, Inc.                          5,031
       200   Omnicom Group                         11,600
       400   Pitney Bowes, Inc.                    26,425
       200   R. R. Donnelley & Sons Co.             8,762
       100   Ryder System, Inc.                     2,600
       400   Service Corp. International           15,225
       800   Waste Management, Inc.                37,300
                                              -----------
                                                  212,309
                                              -----------
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               27
<PAGE>   157
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                               EQUITY INDEX FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             CAPITAL EQUIPMENT (0.7%)
       100   Aeroquip-Vickers, Inc.           $     2,994
       500   Caterpillar, Inc.                     23,000
       100   Cummins Engine Co., Inc.               3,550
       100   Fluor Corp.                            4,256
       100   Foster Wheeler Corp.                   1,319
       100   Harnischfeger Industries, Inc.         1,019
       300   Illinois Tool Works, Inc.             17,400
       200   Ingersoll-Rand Co.                     9,387
       100   McDermott International, Inc.          2,469
       100   Milacron, Inc.                         1,925
       100   NACCO Industries, Inc.                 9,200
       100   PACCAR, Inc.                           4,112
       200   Parker-Hannifin Corp.                  6,550
       100   Snap-on, Inc.                          3,481
       200   Thermo Electron Corp.*                 3,387
       100   Timken Co. (The)                       1,888
                                              -----------
                                                   95,937
                                              -----------
 
             CHEMICALS--SPECIALTY (0.4%)
       300   Air Products & Chemicals, Inc.        12,000
       200   Avery Dennison Corp.                   9,012
       100   Eastman Chemical Co.                   4,475
       200   Engelhard Corp.                        3,900
       100   Great Lakes Chemical Corp.             4,000
       200   Morton International, Inc.             4,900
       100   Nalco Chemical Co.                     3,100
       200   Pall Corp.                             5,062
       200   Praxair, Inc.                          7,050
       100   Sigma-Aldrich Corp.                    2,937
                                              -----------
                                                   56,436
                                              -----------
 
             CHEMICALS--PETROLEUM & INORGANIC (1.2%)
       300   Dow Chemical Co.                      27,281
     1,600   Du Pont (E.I.) De Nemours & Co.       84,900
       100   Goodrich (B.F.) Co.                    3,587
       100   Hercules, Inc.                         2,737
       900   Monsanto Co.                          42,750
       300   Rohm & Haas Co.                        9,037
       200   Union Carbide Corp.                    8,500
       100   W.R. Grace & Co.*                      1,569
                                              -----------
                                                  180,361
                                              -----------
 
             COMMUNICATION EQUIPMENT (3.8%)
       500   3Com Corp.*                           22,406
       100   Andrew Corp.*                          1,650
       300   Ascend Communications, Inc.*          19,725
       300   BMC Software, Inc.*                   13,369
       200   Cabletron System, Inc.*                1,675
     2,200   Cisco Systems, Inc.*                 204,187
       200   General Instrument Corp.*              6,787
       100   Harris Corp.                           3,662
     1,800   Lucent Technologies, Inc.            198,000
       860   Northern Telecom Ltd.                 43,107
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             COMMUNICATION EQUIPMENT (CONTINUED)
       500   Novell, Inc.*                    $     9,062
       100   Scientific-Atlanta, Inc.               2,281
       300   Tellabs, Inc.*                        20,569
                                              -----------
                                                  546,480
                                              -----------
 
             COMPUTERS--MAIN/MINI (2.9%)
       200   Data General Corp.*                    3,287
     1,400   Hewlett-Packard Co.                   95,637
     1,300   International Business Machines
             Corp.                                240,175
       200   Silicon Graphics, Inc.                 2,575
       400   Unisys Corp.*                         13,775
       500   Xerox Corp.                           59,000
                                              -----------
                                                  414,449
                                              -----------
 
             COMPUTERS--MICRO (2.0%)
       200   Apple Computer, Inc.* (a)              8,187
     2,394   Compaq Computer Corp.                100,398
     1,800   Dell Computer Corp.*                 131,737
       200   Gateway 2000, Inc.*                   10,237
       500   Sun Microsystems, Inc.*               42,812
                                              -----------
                                                  293,371
                                              -----------
 
             COMPUTERS--PERIPHERAL (4.5%)
       100   Adobe Systems, Inc.                    4,675
       100   Autodesk, Inc.                         4,269
       700   Computer Associates
             International, Inc.                   29,837
       100   Compuware Corp.*                       7,813
       700   EMC Corp.*                            59,500
     3,400   Microsoft Corp.*                     471,537
     1,300   Oracle Corp.*                         56,062
       400   Parametric Technology Corp.*           6,500
       300   PeopleSoft, Inc.*                      5,681
       300   Seagate Technology, Inc.*              9,075
                                              -----------
                                                  654,949
                                              -----------
 
             CONSTRUCTION MATERIALS (0.2%)
       100   Black & Decker Corp.                   5,606
       150   Crane Co.                              4,528
       100   Owens Corning                          3,544
       200   PPG Industries, Inc.                  11,650
       200   Sherwin-Williams Co.                   5,875
       100   Stanley Works (The)                    2,775
                                              -----------
                                                   33,978
                                              -----------
 
             CONTAINERS (0.1%)
       100   Ball Corp.                             4,575
       100   Bemis, Inc.                            3,794
       200   Crown Cork & Seal Co., Inc.            6,162
                                              -----------
                                                   14,531
                                              -----------
</TABLE>
 
 28              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   158
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                               EQUITY INDEX FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             COSMETIC/TOILETRY (0.7%)
       400   Avon Products, Inc.              $    17,700
     1,500   Gillette Company (The)                72,469
       100   International Flavor and Fra-
             grances, Inc.                          4,419
                                              -----------
                                                   94,588
                                              -----------
 
             DEFENSE (0.4%)
       100   EG&G, Inc.                             2,781
       200   General Dynamics Corp.                11,725
       500   Raytheon Co.                          26,625
       300   Rockwell International Corp.          14,569
                                              -----------
                                                   55,700
                                              -----------
 
             ELECTRICAL EQUIPMENT (4.2%)
       300   Dover Corp.                           10,987
       600   Emerson Electric Co.                  36,300
     4,500   General Electric Co.                 459,281
       200   Grainger (W.W.), Inc.                  8,325
       876   Tyco International Ltd.               66,083
       100   Cooper Industries, Inc.                4,769
       200   Honeywell, Inc.                       15,062
       100   Johnson Controls, Inc.                 5,900
                                              -----------
                                                  606,707
                                              -----------
 
             ELECTRONIC COMPONENTS (2.9%)
       300   AMP, Inc.                             15,619
       200   Advanced Micro Devices, Inc.*          5,787
     2,300   Intel Corp.                          272,694
       200   LSI Logic Corp.*                       3,225
       300   Micron Technology, Inc.*              15,169
       800   Motorola, Inc.                        48,850
       200   National Semiconductor Corp.*          2,700
       100   Raychem Corp.                          3,231
       500   Texas Instruments, Inc.               42,781
       100   Thomas & Betts Corp.                   4,331
                                              -----------
                                                  414,387
                                              -----------
             ELECTRONIC INSTRUMENTS (0.3%)
       500   Applied Materials, Inc.*              21,344
       100   KLA-Tencor Corp.*                      4,337
       100   Perkin-Elmer Corp. (The)               9,756
       100   Tektronix, Inc.                        3,006
                                              -----------
                                                   38,443
                                              -----------
             FARM MACHINERY (0.1%)
       100   Case Corp.                             2,181
       300   Deere & Co.                            9,937
       100   Navistar International Corp.*          2,850
                                              -----------
                                                   14,968
                                              -----------
             FINANCE COMPANIES (0.6%)
     1,000   Associates First Capital Corp.        42,375
       100   Capital One Financial Corp.           11,500
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             FINANCE COMPANIES (CONTINUED)
       200   Countrywide Credit Industries,
             Inc.                             $    10,037
       706   Household International, Inc.         27,975
                                              -----------
                                                   91,887
                                              -----------
 
             FOOD & RELATED (2.4%)
       815   Archer-Daniels Midland Co.            14,008
       400   BestFoods                             21,300
       600   Campbell Soup Co.                     33,000
       700   ConAgra, Inc.                         22,050
       200   General Mills, Inc.                   15,550
       500   Heinz (H.J.) Co.                      28,312
       200   Hershey Foods Corp.                   12,437
       600   Kellogg Co.                           20,475
       300   Pioneer Hi-Bred International,
             Inc.                                   8,100
       200   Quaker Oats Co.                       11,900
       400   Ralston Purina Group                  12,950
     1,300   Sara Lee Corp.                        36,644
       200   Supervalu, Inc.                        5,600
       500   Sysco Corp.                           13,719
       900   Unilever NV N.Y. Shares               74,644
       200   Wrigley (Wm.) Jr. Co.                 17,912
                                              -----------
                                                  348,601
                                              -----------
 
             FOREST/PAPER PRODUCTS (0.8%)
       100   Boise Cascade Corp.                    3,100
       100   Champion International Corp.           4,050
       100   Georgia Pacific Corp.                  5,856
       400   International Paper Co.               17,925
       700   Kimberly Clark Corp.                  38,150
       100   Louisiana-Pacific Corp.                1,831
       100   Mead Corp.                             2,931
       200   Owens-Illinois, Inc.*                  6,125
       100   Sealed Air Corp.*                      5,106
       100   Temple-Inland, Inc.                    5,931
       100   Union Camp Corp.                       6,750
       100   Westvaco Corp.                         2,681
       300   Weyerhauser Co.                       15,244
       200   Willamette Industries, Inc.            6,700
                                              -----------
                                                  122,380
                                              -----------
 
             FURNITURE (0.1%)
       100   Armstrong World Industries,
             Inc.                                   6,031
       500   Masco Corp.                           14,375
                                              -----------
                                                   20,406
                                              -----------
 
             GOLD/PRECIOUS METALS (0.1%)
       500   Barrick Gold Corp.                     9,750
       400   Battle Mountain Gold Co.               1,650
       300   Homestake Mining Co.                   2,756
       300   Placer Dome, Inc.                      3,450
                                              -----------
                                                   17,606
                                              -----------
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               29
<PAGE>   159
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                               EQUITY INDEX FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             HEALTH CARE--DRUGS (6.4%)
     2,100   Abbott Laboratories              $   102,900
       100   Allergan, Inc.                         6,475
       100   Alza Corp.* (a)                        5,225
       400   Amgen, Inc.*                          41,825
       250   Cardinal Health, Inc. (a)             18,969
     1,500   Eli Lilly & Co.                      133,312
     1,600   Merck & Co., Inc.*                   236,300
       100   Millipore Corp.                        2,844
     1,800   Pfizer, Inc.                         225,787
       700   Pharmacia Upjohn, Inc.                39,637
     2,000   Schering-Plough Corp.                110,500
                                              -----------
                                                  923,774
                                              -----------
 
             HEALTH CARE--GENERAL (4.2%)
     1,800   American Home Products Corp.         101,362
       100   Bausch & Lomb, Inc.                    6,000
       400   Baxter International, Inc.            25,725
       300   Becton, Dickinson and Co.             12,806
       200   Biomet, Inc.                           8,050
       500   Boston Scientific, Inc.* (a)          13,406
     1,400   Bristol-Meyers Squibb Co.            187,337
     1,900   Johnson & Johnson                    159,362
       100   Mallinckrodt, Inc.                     3,081
       100   St. Jude Medical, Inc.*                2,769
     1,100   Warner-Lambert Co.                    82,706
                                              -----------
                                                  602,604
                                              -----------
 
             HOME BUILDING, MOBILE HOMES (0.2%)
       100   Centex Corp.                           4,506
       100   Fleetwood Enterprises, Inc.            3,475
       100   Kaufman & Broad Home Corp.             2,875
       200   Loews Corp.                           19,650
       100   Pulte Corp.                            2,781
                                              -----------
                                                   33,287
                                              -----------
             HOSPITAL SUPPLY & MANAGEMENT (1.3%)
       200   Aetna, Inc.                           15,725
       100   Bard (C.R.), Inc.                      4,950
       900   Columbia/HCA Healthcare Corp.         22,275
       200   Guidant Corp.                         22,050
       600   HBO & Co.                             17,212
       200   HCR Manor Care, Inc.*                  5,875
       600   HealthSouth Corp.*                     9,262
       200   Humana, Inc.*                          3,562
       200   IMS Health, Inc.                      15,087
       700   Medtronic, Inc.                       51,975
       400   Tenet Healthcare Corp.*               10,500
       300   United HeathCare Corp.                12,919
                                              -----------
                                                  191,392
                                              -----------
             HOTELS & GAMING (0.1%)
       100   Harrah's Entertainment*                1,569
       400   Hilton Hotels Corp.                    7,650
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             HOTELS & GAMING (CONTINUED)
       300   Marriott International, Inc.
             Class A                          $     8,700
       200   Mirage Resorts, Inc.*                  2,987
                                              -----------
                                                   20,906
                                              -----------
 
             HOUSEHOLD--GENERAL PRODUCTS (1.8%)
       100   American Greetings Corp. Class
             A                                      4,106
       100   Clorox Co.                            11,681
       400   Colgate-Palmolive Co.                 37,150
       300   Fort James Corp.                      12,000
       200   Fortune Brands, Inc.                   6,325
       100   Jostens, Inc.                          2,619
       200   Newell Co.                             8,250
     1,800   Procter & Gamble Co.                 164,362
       200   Rubbermaid, Inc.                       6,288
       100   Tupperware Corp.                       1,644
                                              -----------
                                                  254,425
                                              -----------
 
             HOUSEHOLD--MAJOR APPLIANCES (0.1%)
       100   Briggs & Stratton Corp.                4,988
       100   Maytag Corp.                           6,225
       100   Whirlpool Corp.                        5,538
                                              -----------
                                                   16,751
                                              -----------
 
             INSURANCE--LIFE (0.9%)
       300   American General Corp.                23,400
       200   AON Corp.                             11,075
       391   Conseco, Inc.                         11,950
       100   Jefferson-Pilot Corp.                  7,500
       200   Provident Cos., Inc.                   8,300
       150   Providian Corp.                       11,250
       300   SunAmerica, Inc.                      24,338
       200   Torchmark Corp.                        7,063
       100   Transamerica Corp.                    11,550
       200   UNUM Corp.                            11,675
                                              -----------
                                                  128,101
                                              -----------
 
             INSURANCE--PROPERTY/CASUALTY (2.0%)
     1,100   Allstate Corp.                        42,488
     1,400   American International Group,
             Inc.                                 135,275
       200   Chubb Corp.                           12,975
       300   CIGNA Corp.                           23,194
       200   Cincinnati Financial Corp.             7,325
       300   Hartford Financial Services
             Group, Inc.                           16,463
       100   Lincoln National Corp.                 8,181
       100   MBIA, Inc.                             6,556
       200   MGIC Investment Corp.                  7,963
       100   Progressive Corp. OH                  16,938
       200   SAFECO Corp.                           8,588
       300   St. Paul Cos., Inc. (a)               10,425
                                              -----------
                                                  296,371
                                              -----------
</TABLE>
 
 30              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   160
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                               EQUITY INDEX FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             LEISURE TIME INDUSTRY (1.1%)
       800   Carnival Corp. Class A           $    38,400
     1,200   Cendant Corp.*                        22,875
       200   Hasbro, Inc.                           7,225
       100   Brunswick Corp.                        2,475
     2,800   Walt Disney Co.                       84,000
       400   Mattel, Inc.                           9,125
                                              -----------
                                                  164,100
                                              -----------
 
             MINING (0.1%)
       100   Asarco, Inc.                           1,506
       100   Cyprus Amax Minerals Co.               1,000
       100   Freeport-McMoRan Copper & Gold,
             Inc.                                   1,044
       100   Inco Ltd.                              1,056
       200   Newmont Mining Corp.                   3,613
       100   Phelps Dodge Corp.                     5,088
                                              -----------
                                                   13,307
                                              -----------
 
             MOTOR VEHICLE PARTS (0.2%)
       200   Autozone, Inc.*                        6,588
       192   Dana Corp.                             7,848
       100   Eaton Corp.                            7,069
       200   Genuine Parts Co.                      6,688
       100   ITT Industries, Inc.                   3,975
                                              -----------
                                                   32,168
                                              -----------
             MOTOR VEHICLES (1.1%)
     1,700   Ford Motor Co.                        99,769
       900   General Motors Corp.                  64,406
                                              -----------
                                                  164,175
                                              -----------
 
             MULTIPLE INDUSTRY (1.2%)
       800   Allied-Signal, Inc.                   35,450
       .35   Berkshire Hathaway, Inc. Class
             A*                                    24,500
       300   Corning, Inc.                         13,500
       200   Danaher Corp.                         10,863
       100   FMC Corp.*                             5,600
       100   Harcourt General, Inc.                 5,319
       600   Minnesota Mining &
             Manufacturing Co.                     42,675
       100   National Service Industries,
             Inc.                                   3,800
       200   Textron, Inc.                         15,188
       200   TRW, Inc.                             11,238
                                              -----------
                                                  168,133
                                              -----------
             PETROLEUM--DOMESTIC (0.8%)
       200   Anadarko Petroleum Corp.               6,175
       100   Apache Corp.                           2,531
       100   Ashland, Inc.                          4,838
       400   Atlantic Richfield Co.                26,100
       200   Burlington Resources, Inc.             7,163
       100   Kerr Mcgee Corp. (a)                   3,825
       500   Occidental Petroleum Corp.             8,438
       100   ORYX Energy Co.*                       1,344
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             PETROLEUM--DOMESTIC (CONTINUED)
       400   Phillips Petroleum Co.           $    17,050
       100   Sunoco, Inc.                           3,606
       200   Tenneco, Inc.                          6,813
       300   Union Pacific Resources Group,
             Inc.                                   2,719
       300   Unocal Corp.                           8,756
       400   USX - Marathon Group                  12,050
                                              -----------
                                                  111,408
                                              -----------
 
             PETROLEUM--INTERNATIONAL (4.2%)
     3,000   Royal Dutch Petroleum Co.            143,625
       900   Chevron Corp.                         74,644
     3,400   Exxon Corp.                          248,625
     1,100   Mobil Corp.                           95,838
       700   Texaco, Inc.                          37,013
       100   Amerada Hess Corp.                     4,975
                                              -----------
                                                  604,720
                                              -----------
 
             PETROLEUM SERVICES (0.4%)
       370   Baker Hughes, Inc.                     6,544
       600   Halliburton Co.                       17,775
       800   Schlumberger Ltd.                     36,900
                                              -----------
                                                   61,219
                                              -----------
 
             PHOTO EQUIPMENT (0.2%)
       400   Eastman Kodak Co.                     28,800
       100   Polaroid Corp.                         1,869
                                              -----------
                                                   30,669
                                              -----------
 
             PUBLISHING (0.5%)
       100   Dow Jones & Co., Inc.                  4,813
       400   Gannett Co., Inc.                     25,800
       100   Knight-Ridder, Inc.                    5,113
       100   McGraw-Hill Cos., Inc.                10,188
       100   Meredith Corp.                         3,788
       300   New York Times Co. Class A            10,406
       100   Times Mirror Co. (The) (a)             5,600
       200   Tribune Co.                           13,200
                                              -----------
                                                   78,908
                                              -----------
 
             RAILROAD (0.4%)
       600   Burlington Northern Santa Fe
             Corp.                                 20,250
       300   CSX Corp.                             12,450
       500   Norfolk Southern Corp.                15,844
       300   Union Pacific Corp.                   13,519
                                              -----------
                                                   62,063
                                              -----------
 
             RESTAURANTS (0.6%)
       200   Darden Restaurants, Inc. (a)           3,600
       900   McDonald's Corp.                      68,963
       200   Tricon Global Restaurants,
             Inc.*                                 10,025
       200   Wendy's International, Inc.            4,363
                                              -----------
                                                   86,951
                                              -----------
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               31
<PAGE>   161
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                               EQUITY INDEX FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             RETAIL--FOOD STORES (1.2%)
       300   Albertson's, Inc. (a)            $    19,106
       400   American Stores Co.                   14,775
       400   Kroger Co.*                           24,200
       100   Longs Drug Stores Corp.                3,750
       400   Rite Aid Corp.                        19,825
       700   Safeway, Inc.*                        42,656
       100   The Great Atlantic & Pacific
             Tea Co., Inc.                          2,963
       700   Walgreen Co.                          40,994
       200   Winn-Dixie Stores, Inc.                8,975
                                              -----------
                                                  177,244
                                              -----------
 
             RETAIL--GENERAL MERCHANDISE (3.0%)
       300   Costco Cos., Inc.*                    21,656
       600   Dayton Hudson Corp.                   32,550
       100   Dillard's, Inc.                        2,838
       225   Dollar General Corp.                   5,316
       300   Federated Department Stores,
             Inc.*                                 13,069
       400   J. C. Penney Company, Inc.            18,750
       700   Kmart Corp.*                          10,719
       200   Kohls Corp.*                          12,288
       300   May Department Stores Co.             18,113
       200   Nordstrom, Inc.                        6,938
       500   Sears, Roebuck & Co.*                 21,250
       400   TJX Cos., Inc.                        11,600
     3,100   Wal-Mart Stores, Inc.                252,456
                                              -----------
                                                  427,543
                                              -----------
             RETAIL--SPECIALTY (2.0%)
       100   Circuit City Stores - Circuit
             City Group                             4,994
       100   Consolidated Stores Corp.*             2,019
       500   CVS Corp.                             27,500
       200   Fred Meyer, Inc.*                     12,050
       800   Gap, Inc.                             45,000
     2,200   Home Depot, Inc.                     134,613
       500   Lowe's Cos.                           25,594
       400   Staples, Inc.*                        17,475
       100   Tandy Corp.                            4,119
       300   The Limited, Inc.                      8,738
       200   The Pep Boys - Manny, Moe &
             Jack                                   3,138
       300   Toys 'R' Us, Inc.*                     5,063
                                              -----------
                                                  290,303
                                              -----------
 
             SAVINGS & LOANS (0.1%)
       100   Golden West Financial Corp.            9,169
                                              -----------
 
             SECURITY & COMMERCIAL BROKERS (2.8%)
       600   American Express Co.                  61,350
       200   Bear Stearns Cos., Inc. (a)            7,475
     1,400   Fannie Mae                           103,600
       300   Franklin Resources, Inc. (a)           9,600
       900   Freddie Mac                           57,994
       200   Lehman Brothers Holdings, Inc.         8,813
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             SECURITY & COMMERCIAL BROKERS (CONTINUED)
       350   Marsh & McLennan Cos., Inc.      $    20,453
       500   Merrill Lynch & Co., Inc.             33,375
       800   Morgan Stanley Dean Witter &
             Co.*                                  56,800
       550   Schwab, Charles Corp.                 30,903
       200   Student Loan Market Association        9,600
                                              -----------
                                                  399,963
                                              -----------
 
             STEEL (0.1%)
       200   Allegheny Teledyne, Inc.               4,088
       100   Bethlehem Steel Corp.                    838
       100   Nucor Corp.                            4,325
       100   USX-U.S. Steel Group, Inc.             2,300
       100   Worthington Industries, Inc.           1,250
                                              -----------
                                                   12,801
                                              -----------
 
             TEXTILE (0.1%)
       100   Springs Industries, Inc. Class
             A                                      4,144
                                              -----------
 
             TIMESHARE & SOFTWARE (0.4%)
       400   Automatic Data Processing, Inc.       32,075
       200   Computer Science Corp.                12,888
       200   Equifax, Inc.                          6,838
       200   Paychex, Inc.                         10,288
                                              -----------
                                                   62,089
                                              -----------
 
             TIRES/RUBBER PRODUCTS (0.1%)
       100   Cooper Tire and Rubber Co.             2,044
       200   Goodyear Tire & Rubber Co.            10,088
                                              -----------
                                                   12,132
                                              -----------
 
             TOBACCO (1.4%)
       400   RJR Nabisco Holding Corp.             11,875
     3,400   Philip Morris Cos., Inc.             181,900
       300   UST, Inc.                             10,463
                                              -----------
                                                  204,238
                                              -----------
 
             UTILITIES--ELECTRIC (2.2%)
       200   AES Corp.*                             9,475
       200   Ameren Corp.                           8,538
       300   American Electric Power
             Company, Inc.                         14,119
       200   Carolina Power & Light Co.             9,413
       200   DTE Energy Corp.                       8,575
       300   Dominion Resources, Inc.              14,025
       300   PECO Energy Co.                       12,488
       500   PG&E Corp.                            15,750
       400   PacificCorp                            8,425
       200   Baltimore Gas and Electric Co.         6,175
       300   Central & Southwest Corp.              8,231
       200   Cinergy Corp.                          6,875
       300   Consolidated Edison, Inc.             15,863
       500   Duke Power Co.                        32,031
       500   Edison International                  13,938
       300   Entergy Corp.                          9,338
</TABLE>
 
 32              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   162
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                               EQUITY INDEX FUND
 
           STATEMENT OF INVESTMENTS -- DECEMBER 31, 1998 (CONTINUED)
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             UTILITIES--ELECTRIC (CONTINUED)
       200   FPL Group, Inc.                  $    12,325
       200   GPU, Inc.                              8,838
       400   Houston Industries, Inc.              12,850
       200   New Century Energies, Inc.             9,750
       200   Niagara Mohawk Power Corp.*            3,225
       200   Northern States Power Co.              5,550
       200   PP&L Resources, Inc.                   5,575
       300   Public Service Enterprise
             Group, Inc.                           12,000
     1,000   Southern Co.                          29,063
       400   Texas Utilities Co.                   18,675
       300   Unicom Corp.                          11,569
                                              -----------
                                                  322,679
                                              -----------
 
             UTILITIES--GAS/PIPELINE (0.7%)
       300   Coastal Corp. (The)                   10,481
       150   Columbia Energy Group                  8,663
       100   Consolidated National Gas Co.          5,400
       100   Eastern Enterprises                    4,375
       500   Enron Corp.                           28,531
       300   FirstEnergy Corp.                      9,769
       100   NICOR, Inc.                            4,225
       100   ONEOK, Inc.                            3,613
       100   People's Energy Corp.                  3,988
       300   Sempra Energy                          7,613
       100   Sonat, Inc.                            2,706
       600   Williams Cos., (The)                  18,713
                                              -----------
                                                  108,077
                                              -----------
 
             UTILITIES--TELEPHONE (7.9%)
       800   AirTouch Communications, Inc.*        57,700
       400   Alltel Corp.                          23,925
     1,500   Ameritech Corp.                       95,063
     2,500   AT&T Corp.                           188,125
     2,100   Bell Atlantic Co.                    111,300
     2,600   Bellsouth Corp.                      129,675
       200   Frontier Corp.                         6,800
     1,300   GTE Corp.                             84,500
     2,570   MCI WorldCom, Inc.*                  184,403
       400   Nextel Communication*                  9,450
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  SHARES                SECURITY                 VALUE
- ---------------------------------------------------------
<C>          <S>                              <C>
             UTILITIES--TELEPHONE (CONTINUED)
     2,700   SBC Communications, Inc.         $   144,788
       600   Sprint Corp.                          50,475
       550   Sprint PCS Group, Inc.*               12,719
       705   U S West Communications Group         45,561
                                              -----------
                                                1,144,484
                                              -----------
             TOTAL COMMON STOCK                13,665,214
                                              -----------
             (cost $12,307,823)
 
             PREFERRED STOCK (0.1%)
       100   Alberto Culver Class B                 2,669
                                              -----------
             (cost $2,959)
</TABLE>
 
<TABLE>
<CAPTION>
- ---------------------------------------------------------
  PRINCIPAL
- ---------------------------------------------------------
<C>           <S>                             <C>
              U.S. GOVERNMENT OBLIGATIONS (.9%)
$    15,000   U.S. Treasury Bills, 4.41%,
              02/04/99                             14,944
     70,000   U.S. Treasury Bills, 4.30%,
              02/18/99                             69,620
     35,000   U.S. Treasury Bills, 4.29%,
              02/25/99                             34,783
     15,000   U.S. Treasury Bills, 4.35%,
              03/18/99                             14,868
                                              -----------
              TOTAL U.S. GOVERNMENT
              OBLIGATIONS                         134,215
                                              -----------
              (cost $134,165)
 ----------
     SHARES
 ----------
              MUTUAL FUNDS (4.2%)
    621,987   The One Group Prime Money
              Market Fund                         621,987
                                              -----------
              (cost $621,987)
 ----------
  PRINCIPAL
 ----------
              SHORT-TERM SECURITIES HELD AS
              COLLATERAL (1.0%)
$   138,974   Lehman Brothers A2/P2
              Tri-Party Repurchase Agreement
              5.50%, dated 12/31/98, due
              01/04/99, collateralized by
              RACERS 1998-MM-12-2, 06/07/99,
              market value $145,930               138,974
                                              -----------
              (cost $138,974)
 
              TOTAL INVESTMENTS               $14,563,059
                                              ===========
              (cost $13,205,908)
</TABLE>
 
- --------------------------------------------------------------------------------
 
Cost for federal income tax purposes: $13,209,899
 
* Denotes a non-income producing security.
 
Portfolio holding percentages represent market value as a percentage of net
assets.
 
(a) A portion of this security was loaned as of December 31, 1998.
 
See accompanying notes to financial statements.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               33
<PAGE>   163
 
                       THE ONE GROUP(R) INVESTMENT TRUST
                      STATEMENTS OF ASSETS AND LIABILITIES
 
                               DECEMBER 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                    GOVERNMENT       ASSET          GROWTH       LARGE COMPANY     EQUITY
                                       BOND        ALLOCATION    OPPORTUNITIES      GROWTH          INDEX
                                    -----------   ------------   -------------   -------------   -----------
<S>                                 <C>           <C>            <C>             <C>             <C>
ASSETS
  Investments in securities, at
     value (cost $42,111,483,
     $90,999,623, $69,125,511,
     $144,998,822 and $13,066,934
     respectively)                  $42,934,859   $102,338,597    $92,688,446    $ 200,982,228   $14,424,085
  Repurchase agreements, at cost             --      1,353,206      8,671,517        4,330,837       138,974
                                    -----------   ------------    -----------    -------------   -----------
       Total investments             42,934,859    103,691,803    101,359,963      205,313,065    14,563,059
  Receivable for investment
     securities sold                         --             --             --               --        80,395
  Interest and dividends
     receivable                         289,970        578,889         44,079          186,227        14,745
  Withholding tax reclaim
     receivable                              --            227             --            1,043            30
  Prepaid assets                          1,400          3,174          3,328            6,946           251
  Deferred organization expenses            961          1,991          2,869            1,897            --
                                    -----------   ------------    -----------    -------------   -----------
       Total assets                  43,227,190    104,276,084    101,410,239      205,509,178    14,658,480
                                    -----------   ------------    -----------    -------------   -----------
LIABILITIES
  Payable for investments
     purchased                        1,019,368             --             --               --        17,143
  Payable for return of collateral
     received for securities on
     loan                                    --      1,353,206      8,671,517        3,330,837       138,974
  Investment advisory fee payable         9,644         55,660         45,038          106,050         4,937
  Administration fee payable              7,499         18,000         14,918           35,127         1,560
  Other accrued expenses                  3,509          4,284          5,058            2,456        15,147
                                    -----------   ------------    -----------    -------------   -----------
       Total liabilities              1,040,020      1,431,150      8,736,531        3,474,470       177,761
                                    -----------   ------------    -----------    -------------   -----------
NET ASSETS                          $42,187,170   $102,844,934    $92,673,708    $ 202,034,708   $14,480,719
                                    ===========   ============    ===========    =============   ===========
REPRESENTED BY:
  Capital                           $41,361,634   $ 91,110,984    $69,407,609    $ 146,107,612   $13,176,531
  Net unrealized appreciation on
     investments                        823,376     11,338,974     23,562,935       55,983,406     1,357,151
  Accumulated undistributed
     (distributions in excess of)
     realized gain (loss) on
     investments and financial
     futures                              2,160        367,455       (296,836)         (57,277)      (52,963)
  Accumulated undistributed
     (distributions in excess of)
     net investment income (loss)            --         27,521             --              967            --
                                    -----------   ------------    -----------    -------------   -----------
NET ASSETS                          $42,187,170   $102,844,934    $92,673,708    $ 202,034,708   $14,480,719
                                    ===========   ============    ===========    =============   ===========
Shares of beneficial interest
  outstanding, no par value
  (unlimited number of shares
  authorized)                         3,963,923      6,792,039      5,002,655        8,928,745     1,319,667
                                    ===========   ============    ===========    =============   ===========
NET ASSET VALUE, redemption and
  offering price per share          $     10.64   $      15.14    $     18.52    $       22.63   $     10.97
                                    ===========   ============    ===========    =============   ===========
</TABLE>
 
See accompanying notes to financial statements.
 
 34              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   164
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                            STATEMENTS OF OPERATIONS
 
                      FOR THE YEAR ENDED DECEMBER 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                       GOVERNMENT      ASSET         GROWTH       LARGE COMPANY     EQUITY
                                          BOND      ALLOCATION    OPPORTUNITIES      GROWTH        INDEX(A)
                                       ----------   -----------   -------------   -------------   ----------
<S>                                    <C>          <C>           <C>             <C>             <C>
INVESTMENT INCOME:
INCOME:
  Dividend income                      $       --   $   457,214    $   331,712     $ 1,402,593    $   67,907
  Interest income                       1,936,353     2,111,253        130,565         423,758        34,963
  Income from securities lending            2,145         9,381         12,301           3,071            90
                                       ----------   -----------    -----------     -----------    ----------
     Total income                       1,938,498     2,577,848        474,578       1,829,422       102,960
                                       ----------   -----------    -----------     -----------    ----------
EXPENSES:
  Investment advisory fees                138,300       493,132        431,700         948,112        15,432
  Administration fees                      69,649       158,161        151,830         330,612         7,202
  Professional fees                        12,800        17,700         19,000          29,400        12,800
  Custodian fees                            7,375        18,900         17,100          14,800        12,000
  Insurance expense                         2,000         3,200          4,875           8,401           156
  Trustee fees                              1,600         3,400          3,700           7,600           200
  Other                                     8,169        12,843         13,839          24,104        10,472
                                       ----------   -----------    -----------     -----------    ----------
     Total expenses before waivers
       and reimbursements                 239,893       707,336        642,044       1,363,029        58,262
     Less waivers                          (9,393)       (2,862)            --              --       (15,432)
     Less reimbursements                       --            --             --              --       (14,538)
                                       ----------   -----------    -----------     -----------    ----------
     Net expenses                         230,500       704,474        642,044       1,363,029        28,292
                                       ----------   -----------    -----------     -----------    ----------
NET INVESTMENT INCOME (LOSS)           $1,707,998   $ 1,873,374    $  (167,466)    $   466,393    $   74,668
                                       ----------   -----------    -----------     -----------    ----------
NET REALIZED AND UNREALIZED GAIN
  (LOSS):
  Net realized gain (loss) on
     investments and financial
     futures                           $  140,967   $ 1,660,601    $ 4,626,878     $13,358,107    $  (52,963)
  Net change in unrealized
     appreciation on investments          255,875     8,916,609     19,581,381      37,839,553     1,357,151
                                       ----------   -----------    -----------     -----------    ----------
NET REALIZED AND UNREALIZED GAIN          396,842    10,577,210     24,208,259      51,197,660     1,304,188
                                       ----------   -----------    -----------     -----------    ----------
NET INCREASE IN NET ASSETS
     RESULTING FROM OPERATIONS         $2,104,840   $12,450,584    $24,040,793     $51,664,053    $1,378,856
                                       ==========   ===========    ===========     ===========    ==========
</TABLE>
 
- ------------------------------------------------------
 
(a) For the period May 1, 1998, date of commencement of operations, through
    December 31, 1998.
 
See accompanying notes to financial statements.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               35
<PAGE>   165
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                      STATEMENTS OF CHANGES IN NET ASSETS
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                   GOVERNMENT BOND                    ASSET ALLOCATION
                                          ---------------------------------   ---------------------------------
                                              YEAR ENDED        YEAR ENDED        YEAR ENDED        YEAR ENDED
                                             DECEMBER 31,      DECEMBER 31,      DECEMBER 31,      DECEMBER 31,
                                                 1998              1997              1998              1997
                                           -------------------------------     -------------------------------
<S>                                       <C>                  <C>            <C>                  <C>
INCREASE (DECREASE) IN NET ASSETS:
FROM OPERATIONS:
  Net investment income                      $ 1,707,998       $ 1,061,995       $  1,873,374      $   873,061
  Net realized gain on investments               140,967            45,096          1,660,601        3,089,370
  Net change in unrealized appreciation
     of investments                              255,875           596,960          8,916,609        1,416,110
                                             -----------       -----------       ------------      -----------
     Net increase in net assets
       resulting from operations               2,104,840         1,704,051         12,450,584        5,378,541
                                             -----------       -----------       ------------      -----------
DISTRIBUTIONS TO SHAREHOLDERS:
  From net investment income                  (1,707,998)       (1,061,995)        (1,873,374)        (871,191)
  In excess of net investment income             (33,739)           (5,056)           (26,808)              --
  From net realized gain from investment
     transactions                               (105,068)          (41,992)        (1,265,780)      (3,031,880)
                                             -----------       -----------       ------------      -----------
     Decrease in net assets from
       distributions to shareholders          (1,846,805)       (1,109,043)        (3,165,962)      (3,903,071)
                                             -----------       -----------       ------------      -----------
CAPITAL SHARE TRANSACTIONS:
  Net proceeds from sale of shares            19,963,136         6,514,599         49,983,354       21,414,090
  Net asset value of shares issued to
     shareholders from reinvestment of
     distributions                             1,846,805         1,109,043          3,165,962        3,903,071
  Cost of shares redeemed                     (2,245,378)         (475,970)        (1,034,680)        (230,267)
                                             -----------       -----------       ------------      -----------
       Increase in net assets from
          capital share transactions          19,564,563         7,147,672         52,114,636       25,086,894
                                             -----------       -----------       ------------      -----------
NET INCREASE IN NET ASSETS                    19,822,598         7,742,680         61,399,258       26,562,364
NET ASSETS-BEGINNING OF PERIOD                22,364,572        14,621,892         41,445,676       14,883,312
                                             -----------       -----------       ------------      -----------
NET ASSETS-END OF PERIOD                     $42,187,170       $22,364,572       $102,844,934      $41,445,676
                                             ===========       ===========       ============      ===========
Undistributed net realized gain on
  investments                                $     2,160       $        --       $    367,455      $    25,093
                                             ===========       ===========       ============      ===========
Undistributed (distributions in excess
  of) net investment income                  $        --       $        --       $     27,521      $     1,870
                                             ===========       ===========       ============      ===========
SHARE ACTIVITY:
  Shares sold                                  1,866,627           631,011          3,510,954        1,615,750
  Reinvestment of distributions                  173,661           108,358            215,204          296,400
  Shares redeemed                               (210,017)          (46,749)           (75,663)         (18,108)
                                             -----------       -----------       ------------      -----------
Net increase in number of shares               1,830,271           692,620          3,650,495        1,894,042
                                             ===========       ===========       ============      ===========
</TABLE>
 
See accompanying notes to financial statements.
 
 36              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   166
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                      STATEMENTS OF CHANGES IN NET ASSETS
 
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                  GROWTH OPPORTUNITIES             LARGE COMPANY GROWTH           EQUITY INDEX
                                               ---------------------------   ---------------------------------   --------------
                                                YEAR ENDED     YEAR ENDED        YEAR ENDED        YEAR ENDED     PERIOD ENDED
                                               DECEMBER 31,   DECEMBER 31,      DECEMBER 31,      DECEMBER 31,    DECEMBER 31,
                                                   1998           1997              1998              1997          1998(a)
                                               ---------------------------   --------------------------------    -------------
<S>                                            <C>            <C>            <C>                  <C>            <C>
INCREASE (DECREASE) IN NET ASSETS:
FROM OPERATIONS:
  Net investment income (loss)                 $  (167,466)   $   (87,568)      $    466,393      $    485,771    $    74,668
  Net realized gain (loss) on investments        4,626,878      4,951,110         13,358,107         3,943,220        (52,963)
  Net change in unrealized appreciation of
     investments                                19,581,381      3,493,572         37,839,553        13,307,669      1,357,151
                                               -----------    -----------       ------------      ------------    -----------
     Net increase in net assets from
       operations                               24,040,793      8,357,114         51,664,053        17,736,660      1,378,856
                                               -----------    -----------       ------------      ------------    -----------
DISTRIBUTIONS TO SHAREHOLDERS:
  From net investment income                            --             --           (465,426)         (485,771)       (74,668)
  In excess of net investment income                    --             --                 --           (11,566)            --
  From net realized gain from investment
     transactions                               (4,300,170)    (4,757,643)       (13,342,889)       (3,931,556)            --
  In excess of realized gain on investment
     transactions                                 (132,232)       (17,827)           (57,277)           (1,846)            --
  Tax return of capital distribution            (1,002,643)       (61,358)                --            (6,585)          (601)
                                               -----------    -----------       ------------      ------------    -----------
     Decrease in net assets from
       distributions to shareholders            (5,435,045)    (4,836,828)       (13,865,592)       (4,437,324)       (75,269)
                                               -----------    -----------       ------------      ------------    -----------
CAPITAL SHARE TRANSACTIONS:
  Net proceeds from sale of shares              19,618,361     20,249,383         51,828,422        39,242,534     13,636,522
  Net asset value of shares issued to
     shareholders from reinvestment of
     distributions                               5,435,045      4,836,828         13,865,593         4,437,323         75,269
  Cost of shares redeemed                       (1,692,146)      (238,598)        (1,085,409)         (244,898)      (534,659)
                                               -----------    -----------       ------------      ------------    -----------
     Increase in net assets from capital
       share transactions                       23,361,260     24,847,613         64,608,606        43,434,959     13,177,132
                                               -----------    -----------       ------------      ------------    -----------
NET INCREASE IN NET ASSETS                      41,967,008     28,367,899        102,407,067        56,734,295     14,480,719
NET ASSETS-BEGINNING OF PERIOD                  50,706,700     22,338,801         99,627,641        42,893,346             --
                                               -----------    -----------       ------------      ------------    -----------
NET ASSETS-END OF PERIOD                       $92,673,708    $50,706,700       $202,034,708      $ 99,627,641    $14,480,719
                                               ===========    ===========       ============      ============    ===========
Distributions in excess of net realized gain
  on investments                               $  (296,836)   $  (326,708)      $    (57,277)     $    (15,218)   $   (52,963)
                                               ===========    ===========       ============      ============    ===========
Undistributed net investment income            $        --    $        --       $        967      $         --    $        --
                                               ===========    ===========       ============      ============    ===========
SHARE ACTIVITY:
  Shares sold                                    1,240,487      1,400,572          2,584,144         2,412,572      1,370,180
  Reinvestment of distributions                    305,683        342,551            613,470           258,782          7,334
  Shares redeemed                                 (113,075)       (17,586)           (58,686)          (18,404)       (57,847)
                                               -----------    -----------       ------------      ------------    -----------
Net increase in number of shares                 1,433,095      1,725,537          3,138,928         2,652,950      1,319,667
                                               ===========    ===========       ============      ============    ===========
</TABLE>
 
- ------------------------------------------------------
 
(a) For the period May 1, 1998, date of commencement of operations, through
    December 31, 1998.
 
See accompanying notes to financial statements.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               37
<PAGE>   167
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                              FINANCIAL HIGHLIGHTS
 
                 FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                 GOVERNMENT BOND
                                     ------------------------------------------------------------------------
                                      YEAR ENDED     YEAR ENDED     YEAR ENDED     YEAR ENDED    AUGUST 1, -
                                     DECEMBER 31,   DECEMBER 31,   DECEMBER 31,   DECEMBER 31,   DECEMBER 31,
                                         1998           1997           1996           1995         1994(a)
                                     ------------   ------------   ------------   ------------   ------------
<S>                                  <C>            <C>            <C>            <C>            <C>
NET ASSET VALUE -- BEGINNING OF
  PERIOD                               $ 10.48        $ 10.15        $ 10.48         $ 9.69         $10.00
                                       -------        -------        -------         ------         ------
  Net investment income                   0.56           0.60           0.59           0.64           0.22
  Net realized and unrealized
     appreciation (depreciation)          0.20           0.35          (0.33)          0.94          (0.31)
                                       -------        -------        -------         ------         ------
       Total from investment
          operations                      0.76           0.95           0.26           1.58          (0.09)
                                       -------        -------        -------         ------         ------
  Distributions:
     From net investment income          (0.56)         (0.60)         (0.59)         (0.64)         (0.22)
     In excess of net investment
       income                            (0.01)            --             --             --             --
     From net realized gains from
       investments                       (0.03)         (0.02)            --          (0.15)            --
                                       -------        -------        -------         ------         ------
       Total distributions               (0.60)         (0.62)         (0.59)         (0.79)         (0.22)
                                       -------        -------        -------         ------         ------
       Net increase (decrease) in
          net asset value                 0.16           0.33          (0.33)          0.79          (0.31)
                                       -------        -------        -------         ------         ------
NET ASSET VALUE -- END OF PERIOD       $ 10.64        $ 10.48        $ 10.15         $10.48         $ 9.69
                                       =======        =======        =======         ======         ======
       Total return                       7.32%          9.67%          2.69%         16.69%          (.90%)(b)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets, end of period (000)      $42,187        $22,365        $14,622         $9,016         $5,112
  Ratio of expenses to average net
     assets                               0.75%          0.75%          0.75%          0.75%          0.75%(c)
  Ratio of expenses to average net
     assets excluding
     waivers/reimbursements               0.78%          0.88%          1.01%          1.47%          1.94%(c)
  Ratio of net investment income to
     average net assets                   5.56%          6.06%          6.11%          6.54%          6.09%(c)
  Ratio of net investment income to
     average net assets excluding
     waivers/reimbursements               5.53%          5.93%          5.85%          5.80%          4.90%(c)
  Portfolio turnover                      40.4%          21.3%          21.3%          34.1%           3.5%(b)
</TABLE>
 
- ------------------------------------------------------
(a) Initial public offering was August 1, 1994.
 
(b) Not Annualized.
 
(c) Annualized.
 
See accompanying notes to financial statements.
 
 38              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   168
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                              FINANCIAL HIGHLIGHTS
 
                 FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                 ASSET ALLOCATION
                                    ---------------------------------------------------------------------------
                                     YEAR ENDED     YEAR ENDED     YEAR ENDED     YEAR ENDED      AUGUST 1, -
                                    DECEMBER 31,   DECEMBER 31,   DECEMBER 31,   DECEMBER 31,    DECEMBER 31,
                                        1998           1997           1996           1995           1994(a)
                                    ------------   ------------   ------------   ------------    ------------
<S>                                 <C>            <C>            <C>            <C>            <C>
NET ASSET VALUE -- BEGINNING OF
  PERIOD                              $  13.19       $ 11.93        $ 11.24         $ 9.81          $10.00
                                      --------       -------        -------         ------          ------
  Net investment income                   0.39          0.39           0.34           0.36            0.06
  Net realized and unrealized
     appreciation (depreciation)          2.14          2.31           0.98           1.64           (0.19)
                                      --------       -------        -------         ------          ------
       Total from investment
          operations                      2.53          2.70           1.32           2.00           (0.13)
                                      --------       -------        -------         ------          ------
  Distributions:
     From net investment income          (0.39)        (0.39)         (0.34)         (0.36)          (0.06)
     From net realized gains from
       investments                       (0.19)        (1.05)         (0.23)         (0.21)             --
     In excess of realized gains
       from investment
       transactions                         --            --          (0.04)            --              --
     Tax return of capital                  --            --          (0.02)            --              --
                                      --------       -------        -------         ------          ------
       Total distributions               (0.58)        (1.44)         (0.63)         (0.57)          (0.06)
                                      --------       -------        -------         ------          ------
       Net increase (decrease) in
          net asset value                 1.95          1.26           0.69           1.43           (0.19)
                                      --------       -------        -------         ------          ------
NET ASSET VALUE -- END OF PERIOD      $  15.14       $ 13.19        $ 11.93         $11.24          $ 9.81
                                      ========       =======        =======         ======          ======
       Total return                      19.09%        22.90%         11.92%         20.69%          (1.32%)(b)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets, end of period (000)     $102,845       $41,446        $14,883         $5,455          $2,063
  Ratio of expenses to average net
     assets                               1.00%         1.00%          1.00%          1.00%           1.00%(c)
  Ratio of expenses to average net
     assets excluding waivers/
     reimbursements                       1.00%         1.15%          1.44%          1.96%           2.36%(c)
  Ratio of net investment income
     to average net assets                2.66%         3.24%          3.27%          3.66%           1.88%(c)
  Ratio of net investment income
     to average net assets
     excluding
     waivers/reimbursements               2.66%         3.07%          2.83%          2.70%           0.52%(c)
  Portfolio turnover                      32.1%         60.9%          64.8%          66.3%             --
</TABLE>
 
- ------------------------------------------------------
(a) Initial public offering was August 1, 1994.
 
(b) Not Annualized.
 
(c) Annualized.
 
See accompanying notes to financial statements.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               39
<PAGE>   169
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                              FINANCIAL HIGHLIGHTS
 
                 FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                               GROWTH OPPORTUNITIES
                                     ------------------------------------------------------------------------
                                      YEAR ENDED     YEAR ENDED     YEAR ENDED     YEAR ENDED    AUGUST 1, -
                                     DECEMBER 31,   DECEMBER 31,   DECEMBER 31,   DECEMBER 31,   DECEMBER 31,
                                         1998           1997           1996           1995         1994(a)
                                     ------------   ------------   ------------   ------------   ------------
<S>                                  <C>            <C>            <C>            <C>            <C>
NET ASSET VALUE --
  BEGINNING OF PERIOD                  $ 14.21        $ 12.11        $ 11.52         $ 9.70         $10.00
                                       -------        -------        -------         ------         ------
  Net investment income (loss)           (0.03)         (0.03)          0.18           0.04             --
  Net realized and unrealized
     appreciation (depreciation)          5.95           3.63           1.62           2.29          (0.30)
                                       -------        -------        -------         ------         ------
       Total from investment
          operations                      5.92           3.60           1.80           2.33          (0.30)
                                       -------        -------        -------         ------         ------
  Distributions:
  From net investment income                --             --          (0.19)         (0.04)            --
  From net realized gains from
     investments                         (1.38)         (1.48)         (0.78)         (0.47)            --
  In excess of realized gains from
     investment transactions             (0.03)            --          (0.24)            --             --
  Tax return of capital                  (0.20)         (0.02)            --             --             --
                                       -------        -------        -------         ------         ------
       Total distributions               (1.61)         (1.50)         (1.21)         (0.51)            --
                                       -------        -------        -------         ------         ------
       Net increase (decrease) in
          net asset value                 4.31           2.10           0.59           1.82          (0.30)
                                       -------        -------        -------         ------         ------
NET ASSET VALUE --
  END OF PERIOD                        $ 18.52        $ 14.21        $ 12.11         $11.52         $ 9.70
                                       =======        =======        =======         ======         ======
       Total return                      38.82%         29.81%         15.67%         24.06%         (3.00%)(b)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets, end of period (000)      $92,674        $50,707        $22,339         $6,685         $  940
  Ratio of expenses to average net
     assets                               0.97%          1.10%          1.06%          0.90%          0.90%(c)
  Ratio of expenses to average net
     assets excluding
     waivers/reimbursements               0.97%          1.11%          1.40%          2.78%          2.96%(c)
  Ratio of net investment income to
     average net assets                  (0.25%)        (0.25%)         1.85%          0.46%         (0.17%)(c)
  Ratio of net investment income to
     average net assets excluding
     waivers/reimbursements              (0.25%)        (0.26%)         1.51%         (1.42%)        (2.22%)(c)
  Portfolio turnover                      87.7%         175.6%         326.9%         193.3%           3.5%(b)
</TABLE>
 
- ------------------------------------------------------
(a) Initial public offering was August 1, 1994.
 
(b) Not Annualized.
 
(c) Annualized.
 
See accompanying notes to financial statements.
 
 40              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   170
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                              FINANCIAL HIGHLIGHTS
 
                 FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                               LARGE COMPANY GROWTH
                                     ------------------------------------------------------------------------
                                      YEAR ENDED     YEAR ENDED     YEAR ENDED     YEAR ENDED    AUGUST 1, -
                                     DECEMBER 31,   DECEMBER 31,   DECEMBER 31,   DECEMBER 31,   DECEMBER 31,
                                         1998           1997           1996           1995         1994(a)
                                     ------------   ------------   ------------   ------------   ------------
<S>                                  <C>            <C>            <C>            <C>            <C>
NET ASSET VALUE --
  BEGINNING OF PERIOD                  $  17.21       $ 13.67        $ 12.12        $  9.99         $10.00
                                       --------       -------        -------        -------         ------
  Net investment income                    0.06          0.10           0.16           0.20           0.05
  Net realized and unrealized
     appreciation                          7.03          4.25           1.86           2.20           0.01
                                       --------       -------        -------        -------         ------
       Total from investment
          operations                       7.09          4.35           2.02           2.40           0.06
                                       --------       -------        -------        -------         ------
  Distributions:
  From net investment income              (0.06)        (0.10)         (0.16)         (0.20)         (0.05)
  From net realized gains from
     investments                          (1.61)        (0.71)         (0.30)         (0.07)         (0.02)
  In excess of realized gains from
     investment transactions                 --            --          (0.01)            --             --
                                       --------       -------        -------        -------         ------
       Total distributions                (1.67)        (0.81)         (0.47)         (0.27)         (0.07)
                                       --------       -------        -------        -------         ------
       Net increase (decrease) in
          net asset value                  5.42          3.54           1.55           2.13          (0.01)
                                       --------       -------        -------        -------         ------
NET ASSET VALUE --
  END OF PERIOD                        $  22.63       $ 17.21        $ 13.67        $ 12.12         $ 9.99
                                       ========       =======        =======        =======         ======
       Total return                       41.27%        31.93%         16.67%         24.13%          0.52%(b)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets, end of period (000)      $202,035       $99,628        $42,893        $16,119         $4,175
  Ratio of expenses to average net
     assets                                0.93%         1.00%          0.98%          0.90%          0.90%(c)
  Ratio of expenses to average net
     assets excluding
     waivers/reimbursements                0.93%         1.00%          1.16%          1.64%          2.08%(c)
  Ratio of net investment income to
     average net assets                    0.32%         0.69%          1.29%          2.02%          1.39%(c)
  Ratio of net investment income to
     average net assets excluding
     waivers/reimbursements                0.32%         0.69%          1.11%          1.28%          0.22%(c)
  Portfolio turnover                       61.0%         34.4%          38.7%          37.4%           4.4%(b)
</TABLE>
 
- ------------------------------------------------------
(a) Initial public offering was August 1, 1994.
 
(b) Not Annualized.
 
(c) Annualized.
 
See accompanying notes to financial statements.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               41
<PAGE>   171
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                              FINANCIAL HIGHLIGHTS
 
                 FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                               EQUITY INDEX
                                                              ---------------
                                                               PERIOD ENDED
                                                               DECEMBER 31,
                                                                  1998(a)
                                                               ------------
<S>                                                           <C>
NET ASSET VALUE -- BEGINNING OF PERIOD                            $ 10.00
                                                                  -------
  Net investment income                                              0.08
  Net realized and unrealized appreciation                           0.97
                                                                  -------
       Total from investment operations                              1.05
                                                                  -------
  Distributions:
     From net investment income                                     (0.08)
                                                                  -------
     Net increase (decrease) in net asset value                      0.97
                                                                  -------
NET ASSET VALUE -- END OF PERIOD                                  $ 10.97
                                                                  =======
       Total return                                                 10.52%(b)
RATIOS AND SUPPLEMENTAL DATA:
  Net assets, end of period (000)                                 $14,481
  Ratio of expenses to average net assets                            0.55%(c)
  Ratio of expenses to average net assets excluding waivers/
     reimbursements                                                  1.13%(c)
  Ratio of net investment income to average net assets               1.45%(c)
  Ratio of net investment income to average net assets
     excluding waivers/ reimbursements                               0.87%(c)
  Portfolio turnover                                                  2.3%(b)
</TABLE>
 
- ------------------------------------------------------
(a) Initial public offering was May 1, 1998.
 
(b) Not Annualized.
 
(c) Annualized.
 
See accompanying notes to financial statements.
 
 42              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   172
 
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                         NOTES TO FINANCIAL STATEMENTS
 
                               DECEMBER 31, 1998
- --------------------------------------------------------------------------------
 
NOTE 1 -- ORGANIZATION
 
The One Group(R) Investment Trust (the Trust) was organized as a Massachusetts
Business Trust on June 7, 1993. The Trust is registered under the Investment
Company Act of 1940 as an open-end management investment company. The Trust
comprises five operating series: the Government Bond Fund, the Asset Allocation
Fund, the Growth Opportunities Fund, the Large Company Growth Fund and the
Equity Index Fund (the Funds). The shares of the Funds are sold at net asset
value to separate accounts of insurance companies to fund variable annuity and
variable life contracts.
 
Investment operations commenced on August 23, 1994 for the Government Bond and
the Large Company Growth Funds, September 29, 1994 for the Asset Allocation
Fund, November 3, 1994 for the Growth Opportunities Fund and May 1, 1998 for the
Equity Index Fund.
 
On October 2, 1998, First Chicago NBD Corporation and BANC ONE CORPORATION
merged with and into BANK ONE CORPORATION. The Pegasus Variable Funds are
advised by First Chicago NBD Investment Management Company (FCNIMCO) which have
been sold exclusively to separate accounts of Hartford Life and Annuity
Insurance Company (Hartford) to fund variable annuity and variable life
contracts. Hartford has filed an exemptive application with the Securities and
Exchange Commission (SEC) requesting relief from certain rules in order to
substitute five of the One Group Investment Trust Funds for the Pegasus Variable
Funds. Assuming approval by the SEC, it is anticipated this substitution will
occur in March, 1999.
 
In 1998, The One Group Investment Trust's Declaration of Trust was amended to
create four new series. In February, 1999, the Declaration of Trust was amended
to name the four new series as follows:
 
         One Group Investment Trust Bond Portfolio
         One Group Investment Trust Diversified Equity Portfolio
         One Group Investment Trust Diversified Mid Cap Portfolio
         One Group Investment Trust Mid Cap Value Portfolio
 
In addition to the four new series, in February, 1999, the Trust's Declaration
of Trust was amended to change the name of the Trust from "The One Group
Investment Trust" to "One Group Investment Trust" and the names of the existing
series will also be changed as follows:
 
<TABLE>
<CAPTION>
EXISTING NAME                   NEW NAME
- -------------                   --------
<S>                             <C>
Government Bond Fund            One Group Investment Trust Government Bond Portfolio
Asset Allocation Fund           One Group Investment Trust Balanced Portfolio
Growth Opportunities Fund       One Group Investment Trust Mid Cap Growth Portfolio
Large Company Growth Fund       One Group Investment Trust Large Cap Growth Portfolio
Equity Index Fund               One Group Investment Trust Equity Index Portfolio
</TABLE>
 
NOTE 2 -- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
Organization costs incurred in connection with the organization and initial
registration of the Trust were paid by the Administrator and have been
reimbursed by the Funds. Such organization costs have been deferred and are
being amortized ratably over a period of sixty months from the commencement of
operations. If any of the initial shares are redeemed before the end of the
amortization period, the proceeds of the redemption will be reduced by the
pro-rata share of the unamortized organization costs.
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               43
<PAGE>   173
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
 
                               DECEMBER 31, 1998
- --------------------------------------------------------------------------------
 
SECURITY VALUATION
 
Securities traded on a securities exchange are valued at the last quoted sale
price on the principal exchange, or if no sale, at their fair value as
determined in good faith under consistently applied procedures authorized by the
Board of Trustees. Securities traded only in the over-the-counter (OTC) market
are valued at the last quoted sale price, or if there is no sale, at the quoted
bid price provided by and independent pricing agent. Corporate debt securities
and debt securities of U.S. issuers, including municipal securities, are valued
by a combination of daily quotes and matrix evaluations provided by an
independent pricing service approved by the Board of Trustees. Inactive
securities that have little or no trading activity are valued by the independent
pricing services by obtaining dealer quotes. Futures contracts and options
thereon traded on a commodities exchange or board of trade are valued at the
last sales price at the close of trading, or if there was no sale, the quoted
bid price at the close of trading. Securities for which either reliable market
quotations are not readily available or for which the pricing agent does not
provide a valuation that, in the judgement of the Fund's investment adviser
represent fair value, shall each be valued in accordance with procedures
authorized by the Board of Trustees.
 
The Funds may invest in repurchase agreements with institutions that the
investment advisor has determined are creditworthy. Each repurchase agreement is
recorded at cost. The Funds require that the securities purchased in a
repurchase agreement transaction be transferred to the custodian in a manner
sufficient to enable the Funds to obtain those securities in the event of a
counterparty default. The seller, under the repurchase agreement, is required to
maintain the value of the securities held at not less than the repurchase price,
including accrued interest.
 
FEDERAL INCOME TAX
 
The Trust treats each Fund as a separate entity for federal income tax purposes.
Each Fund intends to continue to qualify as a regulated investment company by
complying with the provisions available to certain investment companies as
defined in applicable sections of the Internal Revenue Code, and to make
distributions from net investment income and from net realized capital gains
sufficient to relieve it from all, or substantially all, federal income taxes.
 
As of December 31, 1998, the Equity Index Fund had a capital loss carryforward
in the amount of $48,972 which, if unused, will expire in eight years.
 
SECURITY TRANSACTIONS AND INVESTMENT INCOME
 
Security transactions are recorded on the trade date. Net realized gains or
losses from sales of securities are determined on the specific identification
method. Dividend income is recorded on the ex-dividend date; interest income is
recorded on an accrual basis and includes, where applicable, the pro-rata
amortization of premium or accretion of discount.
 
DIVIDENDS TO SHAREHOLDERS
 
Dividends are recorded on the ex-dividend date. The Funds declare and pay income
dividends quarterly. Distributable net realized capital gains are declared and
distributed at least annually. Dividends and distributions to shareholders are
determined in accordance with federal income tax regulations which may differ
from generally accepted accounting principles. These "book/tax" differences are
considered either permanent or temporary in nature. To the extent that these
differences are permanent in nature, such amounts are reclassified within the
capital accounts based on their nature for federal income tax purposes;
temporary differences do not require reclassification. Dividends and
distributions that exceed net investment income and net realized gains for
financial reporting purposes but not for tax purposes are reported as dividends
in excess of net investment income and net realized gains. To the
 
 44              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   174
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
 
                               DECEMBER 31, 1998
- --------------------------------------------------------------------------------
 
extent distributions exceed current and accumulated earnings and profits for
federal income tax purposes, they are reported as distributions of
paid-in-capital.
 
Accordingly, as of December 31, 1998, the capital accounts have been adjusted by
the following amounts:
 
<TABLE>
<CAPTION>
                                UNDISTRIBUTED
                                NET INVESTMENT    DISTRIBUTIONS IN EXCESS
                                    INCOME         OF NET REALIZED GAIN       CAPITAL
                                --------------    -----------------------    ----------
<S>                             <C>               <C>                        <C>
Government Bond...............    $ (33,739)             $ 33,739            $       --
Asset Allocation..............      (52,459)               52,459                    --
Growth Opportunities..........      167,466               838,039             1,005,505
Equity Index..................         (601)                   --                   601
</TABLE>
 
EXPENSES
 
Direct expenses of a Fund are allocated to that Fund. The general expenses of
the Trust are allocated to the Funds based on the relative net assets of the
Funds at the time the expense is incurred.
 
USE OF ESTIMATES
 
The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from those estimates.
 
SECURITIES LENDING
 
To generate additional income, the Funds may lend up to 1/3 of securities in
which each fund is invested, pursuant to agreements requiring that the loan be
continuously secured by collateral equal at all times to at least 100% of the
market value plus accrued interest on the securities lent. Collateral may
include cash, U.S. Government or U.S. Government Agency securities, shares of an
investment trust or mutual fund, letters of credit or any combination of such
collateral. The Funds receive payments from borrowers equivalent to the
dividends and interest on securities lent while simultaneously seeking to earn
interest on the investment of cash collateral. Collateral is marked to market
daily to provide a level of collateral at least equal to the market value plus
accrued interest of securities lent. There may be risks of delay in recovery of
the securities or even loss of rights in the collateral should the borrower of
the securities fail financially. However, loans will be made only to borrowers
deemed by the Advisor to be of good standing and creditworthy under guidelines
established by the Board of Trustees and when, in the judgment of the Advisor,
the consideration which can be earned currently from such securities loans
justifies the attendant risk. Loans are subject to termination by the Funds or
the borrower at any time, and are, therefore, not considered to be illiquid
investments. As of December 31, 1998, the following Funds had securities with
the following market values on loan (amounts in thousands):
 
<TABLE>
<CAPTION>
                                          MARKET VALUE   MARKET VALUE   MARKET VALUE
                                            OF CASH      OF NON-CASH     OF LOANED
                                           COLLATERAL     COLLATERAL     SECURITIES
                                             ------         ------         ------
<S>                                       <C>            <C>            <C>
Government Bond.........................     $   --         $4,684         $4,527
Asset Allocation........................      1,353          6,202          7,299
Growth Opportunities....................      8,672             --          8,665
Large Company Growth....................      3,331             --          3,209
Equity Index............................        139             --            135
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               45
<PAGE>   175
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
 
                               DECEMBER 31, 1998
- --------------------------------------------------------------------------------
 
NOTE 3 -- RELATED PARTY TRANSACTIONS
 
As Investment Advisor, Banc One Investment Advisors Corporation manages the
investments of each Fund of the Trust and earns a fee from the Funds at the
following annual rates: .45% of the average daily net assets of the Government
Bond Fund, .70% of the average daily net assets of the Asset Allocation Fund,
 .65% of the average daily net assets of the Growth Opportunities Fund and the
Large Company Growth Fund and .30% of the average daily net assets of the Equity
Index Fund. Such fees are calculated daily and paid monthly.
 
Nationwide Advisory Services, Inc. (NAS) provides administrative and accounting
services to the Funds. For its services, NAS earns a fee from the Trust at an
annual rate of .24% of the Trust's aggregate average daily net assets (excluding
the Equity Index Fund) up to $250 million, and .14% of such net assets in excess
of $250 million. NAS earns an annual rate of .14% of the aggregate average daily
net assets of the Equity Index Fund.
 
Nationwide Investors Services, Inc. (NIS), an affiliate of NAS, serves as the
Transfer Agent to the Trust. For its services, NIS receives an annual fee of
$2,500 for each Fund.
 
The Investment Advisor has voluntarily agreed to waive all or part of its fees
in order to limit the Funds' operating expenses to no more than .75% of the
average daily net assets of the Government Bond Fund, 1.00% of the average daily
net assets of the Asset Allocation Fund, 1.10% of the average daily net assets
of each of the Growth Opportunities Fund, 1.00% of the average daily net assets
of the Large Company Growth Fund and .55% of the average daily net assets of the
Equity Index Fund. During the period ended December 31, 1998, the Investment
Advisor voluntarily waived fees in the amount of $9,393 in the Government Bond
Fund, $2,862 in the Asset Allocation Fund, and $15,432 in the Equity Index Fund.
During the period ended December 31, 1998 the Investment Advisor reimbursed the
Equity Index Fund $14,538.
 
NOTE 4 -- INVESTMENT TRANSACTIONS
 
Purchases and sales of securities (excluding U.S. Government obligations,
short-term securities and financial futures), and purchases and sales of U.S.
Government Obligations for the period ended December 31, 1998 are summarized as
follows:
 
<TABLE>
<CAPTION>
                                                            SECURITIES
                                                    PURCHASES           SALES
                                                   ------------      -----------
<S>                                                <C>               <C>
Government Bond..................................  $ 24,013,319      $ 7,542,028
Asset Allocation.................................    64,728,319       16,790,185
Growth Opportunities.............................    75,152,734       56,566,943
Large Company Growth.............................   140,902,324       84,279,396
Equity Index.....................................    12,476,568          172,258
</TABLE>
 
<TABLE>
<CAPTION>
                                                    U.S. GOVERNMENT OBLIGATIONS
                                                    PURCHASES           SALES
                                                   ------------      -----------
<S>                                                <C>               <C>
Government Bond..................................  $  6,087,099      $ 4,612,083
Asset Allocation.................................     8,915,789        3,872,907
Equity Index.....................................       351,961          220,000
</TABLE>
 
The Asset Allocation Fund and Equity Index Fund engaged in trading financial
futures contracts. The Fund is exposed to market risks in excess of the amounts
recognized in the statement of assets and liabilities as a result of changes in
the value of the underlying financial instruments. Investments in financial
futures require the Fund to "mark to market" such futures on a daily basis, to
reflect the change in the market value of the contract at the close
 
 46              THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT
<PAGE>   176
                       THE ONE GROUP(R) INVESTMENT TRUST
 
                   NOTES TO FINANCIAL STATEMENTS -- CONTINUED
 
                               DECEMBER 31, 1998
- --------------------------------------------------------------------------------
 
of each day's trading. Typically, variation margin payments are made or received
to reflect daily unrealized gains or losses. When the contracts are closed, the
Fund recognizes a realized gain or loss. Realized gains and losses have been
computed on the specific identification method.
 
A stock index futures contract is a bilateral agreement pursuant to which two
parties agree to take or make delivery of an amount of cash equal to a specified
dollar amount times the difference between the stock index value at the close of
trading of the contracts and the price at which the futures contract was
originally struck. The purpose of entering into futures contracts is to remain
fully invested and reduce transaction costs.
 
Net unrealized appreciation (depreciation) on investments at December 31, 1998,
based on cost for federal income tax purposes, was as follows:
 
<TABLE>
<CAPTION>
                                                                                     NET
                                                   GROSS           GROSS          UNREALIZED
                                                 UNREALIZED      UNREALIZED      APPRECIATION
                                                APPRECIATION    DEPRECIATION    (DEPRECIATION)
                                                ------------    ------------    --------------
<S>                                             <C>             <C>             <C>
Government Bond...............................  $ 1,028,473     $  (205,097)     $   823,376
Asset Allocation..............................   12,970,138      (1,657,570)      11,312,568
Growth Opportunities..........................   27,930,804      (4,664,705)      23,266,099
Large Company Growth..........................   57,854,922      (1,945,080)      55,909,842
Equity Index..................................    1,697,501        (344,341)       1,353,160
</TABLE>
 
NOTE 5 -- SHARES HELD BY AFFILIATES
 
As of December 31, 1998, Nationwide Life and Annuity Insurance Company
beneficially owned shares of the Funds with the following net asset values:
 
<TABLE>
<S>                                                  <C>
Government Bond                                      $6,988,511
Asset Allocation                                      1,902,139
Growth Opportunities                                     62,704
Large Company Growth                                  8,139,758
Equity Index                                          2,762,948
</TABLE>
 
As of December 31, 1998, Banc One Capital Corporation owned shares of the Equity
Index Fund with a net asset value of $828,884.
 
NOTE 6 -- FEDERAL INCOME TAX INFORMATION (UNAUDITED)
 
The following represents distributions from long-term capital gains for the
Funds for the period ended December 31, 1998:
 
<TABLE>
<S>                                                  <C>
Government Bond                                      $   44,830
Asset Allocation                                      1,016,495
Growth Opportunities                                  3,170,933
Large Company Growth                                  9,948,349
</TABLE>
 
                THE ONE GROUP(R) INVESTMENT TRUST ANNUAL REPORT               47
<PAGE>   177
 
                      [THIS PAGE INTENTIONALLY LEFT BLANK]
<PAGE>   178
   
    

DESCRIPTION OF RATINGS

The following is a summary of published ratings by major credit rating agencies.
Credit ratings evaluate only the safety of principal and interest payments, not
the market value risk of lower quality securities. Credit rating agencies may
fail to change credit ratings to reflect subsequent events on a timely basis.
Although Banc One Investment Advisors considers security ratings when making
investment decisions, it also performs its own investment analysis and does not
rely solely on the ratings assigned by credit agencies.

Unrated securities will be treated as non-investment grade securities unless
Banc One Investment Advisors determines that such securities are the equivalent
of investment grade securities. Securities that have received different ratings
from more than one agency are considered investment grade if at least one agency
has rated the security investment grade.

                     DESCRIPTION OF COMMERCIAL PAPER RATINGS
                     ---------------------------------------

DUFF & PHELPS CREDIT RATING CO. ("DUFF")
- ----------------------------------------

D-1+              Highest certainty of timely payment. Short-term liquidity,
                  including internal operating factors and/or access to
                  alternative sources of funding, is outstanding and safety
                  is just below risk-free U.S. Treasury obligations.

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

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

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

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

D-4               Speculative investment characteristics. Liquidity is not
                  sufficient to insure against disruption in debt service.
                  Operating factors and market access may be subject to a high
                  degree of variation.

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

STANDARD & POOR'S CORPORATION ("S&P")
- -------------------------------------

A-1               Highest category of commercial paper. Capacity to meet
                  financial commitment is strong. Obligations designated with a
                  plus sign (+) indicate that capacity to meet financial
                  commitment is extremely strong.

A-2               Issues somewhat more susceptible to adverse effects of changes
                  in circumstances and economic conditions than obligations in
                  higher rating categories. However, the capacity to meet
                  financial commitments is satisfactory.

A-3               Exhibits adequate protection parameters. However, adverse
                  economic conditions or changing circumstances are more likely
                  to lead to a weakened capacity of the obligor to meet its
                  financial commitment on the obligation.

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

<PAGE>   179
DESCRIPTION OF RATINGS
 
The following is a summary of published ratings by major credit rating agencies.
Credit ratings evaluate only the safety of principal and interest payments, not
the market value risk of lower quality securities. Credit rating agencies may
fail to change credit ratings to reflect subsequent events on a timely basis.
Although Banc One Investment Advisors considers security ratings when making
investment decisions, it also performs its own investment analysis and does not
rely solely on the ratings assigned by credit agencies.
 
Unrated securities will be treated as non-investment grade securities unless
Banc One Investment Advisors determines that such securities are the equivalent
of investment grade securities. Securities that have received different ratings
from more than one agency are considered investment grade if at least one agency
has rated the security investment grade.
 
                    DESCRIPTION OF COMMERCIAL PAPER RATINGS
 
DUFF & PHELPS CREDIT RATING CO. ("DUFF")

D-1+             Highest certainty of timely payment. Short-term liquidity,
                 including internal operating factors and/or access to
                 alternative sources of funding, is outstanding and safety is
                 just below risk-free U.S. Treasury obligations.

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

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

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

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

D-4              Speculative investment characteristics. Liquidity is not
                 sufficient to insure against disruption in debt service.
                 Operating factors and market access may be subject to a high
                 degree of variation.

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


STANDARD & POOR'S CORPORATION ("S&P")

A-1              Highest category of commercial paper. Capacity to meet
                 financial commitment is strong. Obligations designated with
                 a plus sign (+) indicate that capacity to meet financial
                 commitment is extremely strong.

A-2              Issues somewhat more susceptible to adverse effects of
                 changes in circumstances and economic conditions than
                 obligations in higher rating categories. However, the
                 capacity to meet financial commitments is satisfactory.

A-3              Exhibits adequate protection parameters. However, adverse
                 economic conditions or changing circumstances are more
                 likely to lead to a weakened capacity of the obligor to meet
                 its financial commitment on the obligation.

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

C                Currently vulnerable to nonpayment and is dependent upon
                 favorable business, financial, and economic conditions for
                 the obligor to meet its financial commitment on the
                 obligation.

<PAGE>   180
D                In payment default. The D rating category is used when
                 payments on an obligation are not made on the date due even
                 if the applicable grace period has not expired, unless
                 Standard & Poor's believes that such payments will be made
                 during such grace period. The D rating also will be used
                 upon the filing of a bankruptcy petition or the taking of a
                 similar action if payments on an obligation are jeopardized.
 

FITCH'S IBCA LIMITED ("FITCH")

A1               Highest capacity for timely repayment. Those issues rated
                 A1+ possess a particularly strong credit feature.

A2               Satisfactory capacity for timely repayment although such
                 capacity may be susceptible to adverse changes in business,
                 economic or financial conditions.

A3               Adequate capacity for timely repayment, but more susceptible
                 to adverse changes business, economic or financial
                 conditions than for obligations in higher categories.

B                Capacity for timely repayment is susceptible to adverse
                 changes in business, economic or financial conditions.

C                High risk of default or which are currently in default.
 

MOODY'S INVESTORS SERVICE ("MOODY'S")

Prime-1          Superior ability for repayment.

Prime-2          Strong ability for repayment.

Prime-3          Acceptable ability for repayment. The effect of industry
                 characteristics and market compositions may be more
                 pronounced. Variability in earnings and profitability may
                 result in changes in the level of debt protection
                 measurements and may require relatively high financial
                 leverage. Adequate alternate liquidity is maintained.

Not Prime        Does not fall within any of the Prime rating categories.
 

                          DESCRIPTION OF BANK RATINGS
 
MOODY'S
These ratings represent Moody's opinion of a bank's intrinsic safety and
soundness.

A                These banks possess exceptional intrinsic financial
                 strength. Typically they will be major financial
                 institutions with highly valuable and defensible business
                 franchises, strong financial fundamentals, and a very
                 attractive and stable operating environment.

B                These banks possess strong intrinsic financial strength.
                 Typically, they will be important institutions with valuable
                 and defensible business franchises, good financial
                 fundamentals, and an attractive and stable operating
                 environment.

C                These banks possess good intrinsic financial strength.
                 Typically, they will be institutions with valuable and
                 defensible business franchises. These banks will demonstrate
                 either acceptable financial fundamentals within a stable
                 operating environment, or better than average financial
                 fundamentals within an unstable operating environment.

D                These banks possess adequate financial strength, but may be
                 limited by one or more of the following factors: a
                 vulnerable or developing business franchise; weak financial
                 fundamentals; or an unstable operating environment.

E                These banks possess very weak intrinsic financial strength,
                 require periodic outside support or suggest an eventual need
                 for outside assistance. Such institutions may be limited by
                 one or more of the following factors: a business franchise
                 of questionable value; financial fundamentals that are
                 seriously deficient in one or more respects; or a highly
                 unstable operating environment.

<PAGE>   181
                      DESCRIPTION OF TAXABLE BOND RATINGS
 
S&P

S&P's credit rating is a current opinion of an obligor's overall financial
capacity (its creditworthiness) to pay its financial obligation.

AAA              The highest rating assigned by S&P. The obligor's capacity
                 to meet its financial commitment on the obligation is
                 extremely strong.

AA               The obligor's capacity to meet its financial commitments on
                 the obligation is very strong.

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

BBB              Exhibits adequate protection parameters. However, adverse
                 economic conditions or changing circumstances are more
                 likely to lead to a weakened capacity of the obligor to meet
                 its financial commitment on the obligation.

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

BB               Less vulnerable to nonpayment than other speculative issues.
                 However, such issues face major ongoing uncertainties or
                 exposure to adverse business, financial, or economic
                 conditions which could lead to the obligor's inadequate
                 capacity to meet its financial commitment on the obligation.

B                More vulnerable to nonpayment than obligations rated BB, but
                 the obligor currently has the capacity to meet its financial
                 commitment on the obligation. Adverse business, financial,
                 or economic conditions will likely impair the obligor's
                 capacity or willingness to meet its financial commitment on
                 the obligation.

CCC              Currently vulnerable to nonpayment, and dependent upon
                 favorable business, financial, and economic conditions for
                 the obligor to meet its financial commitment on the
                 obligation. In the event of adverse business, financial, or
                 economic conditions, the obligor is not likely to have the
                 capacity to meet its financial commitment on the obligation.

CC               Currently highly vulnerable to nonpayment.

C                Used to cover a situation where a bankruptcy petition has
                 been filed or similar action has been taken, but payments on
                 this obligation are being continued.

D                In payment default. Used when payments on an obligation are
                 not made on the date due even if the applicable grace period
                 has not expired, unless Standard & Poor's believes that such
                 payments will be made during such grace period. Also used
                 upon the filing of a bankruptcy petition or the taking of a
                 similar action if payments on an obligation are jeopardized.
 

MOODY'S
INVESTMENT GRADE

Aaa                      Best quality. They carry the smallest degree of
                         investment risk and are generally referred to as "gilt
                         edged." Interest payments are protected by a large, or
                         an exceptionally stable, margin and principal is
                         secure.

Aa                       High quality by all standards. Margins of protection
                         may not be as large as in Aaa securities, fluctuation
                         of protective elements may be greater, or there may be
                         other elements present that make the long-term risks
                         appear somewhat larger than in Aaa securities.
 
<PAGE>   182
A                        These bonds possess many favorable investment 
                         attributes and are to be considered as upper-medium
                         grade obligations. Factors giving security to principal
                         and interest are considered adequate, but elements may
                         be present which suggest a susceptibility to impairment
                         sometime in the future.

Baa                      These bonds are considered medium-grade obligations
                         (i.e., they are neither highly protected nor poorly
                         secured). Interest payments and principal security
                         appear adequate for the present but certain protective
                         elements may be lacking or may be characteristically
                         unreliable over any great length of time. Such bonds
                         lack outstanding investment characteristics and in fact
                         have speculative characteristics as well. [/TABLE]
 

NON-INVESTMENT GRADE

Ba                       These bonds have speculative elements; their future
                         cannot be considered as well assured. The protection of
                         interest and principal payments may be very moderate
                         and thereby not well safeguarded during good and bad
                         times over the future.

B                        These bonds lack the characteristics of a desirable
                         investment (i.e., potentially low assurance of timely
                         interest and principal payments or maintenance of other
                         contract terms over any long period of time may be
                         small).

Caa                      Bonds in this category have poor standing and may be in
                         default. These bonds carry an element of danger with
                         respect to principal and interest payments.

Ca                       Speculative to a high degree and could be in default or
                         have other marked shortcomings. C is the lowest rating.


FITCH
INVESTMENT GRADE

AAA                      Highest rating category. The obligor's capacity for
                         timely repayment of principal and interest is extremely
                         strong.

AA                       The obligor's capacity for timely repayment is very
                         strong.

A                        Bonds and preferred stock considered to be investment
                         grade and of high credit quality. The obligor's ability
                         for timely repayment is strong. However, adverse
                         changes in business, economic, or financial conditions
                         are more likely to affect the capacity for timely
                         repayment than obligations in higher rated categories.

BBB                      The obligor's capacity for timely repayment of
                         principal and interest is adequate. However, adverse
                         changes in business, economic or financial conditions
                         and circumstances, are more likely to affect the
                         capacity for timely repayment than for obligations in
                         higher rated categories.

B                        The Obligor's capacity for timely repayment of
                         principal and interest is uncertain. Timely repayment
                         of principal and interest is not sufficiently protected
                         against adverse changes in business, economic or
                         financial conditions and these obligations are far more
                         speculative than those in higher rated categories.

CCC                      Obligations for which there is a current perceived
                         possibility of default. Timely repayment of principal
                         and interest is dependent on favorable business,
                         economic, or financial conditions and these obligations
                         are far more speculative than those in higher rated
                         categories.

CC                       Obligations which are highly speculative or which have
                         a high risk of default.

C                        Obligations which are currently in default.
 
<PAGE>   183
                        DESCRIPTION OF INSURANCE RATINGS
 

MOODY'S

These ratings represent Moody's opinions of the ability of insurance companies
to pay punctually senior policyholder claims and obligations.

Aaa                      Insurance companies rated in this category offer
                         exceptional financial security. While the financial
                         strength of these companies is likely to change, such
                         changes as can be visualized are most unlikely to
                         impair their fundamentally strong position.

Aa                       These insurance companies offer excellent financial
                         security. Together with the Aaa group, they constitute
                         what are generally known as high grade companies. They
                         are rated lower than Aaa companies because long-term
                         risks appear somewhat larger.

A                        Insurance companies rated in this category offer good
                         financial security. However, elements may be present
                         which suggest a susceptibility to impairment sometime
                         in the future.

Baa                      Insurance companies rated in this category offer
                         adequate financial security. However, certain
                         protective elements may be lacking or may be
                         characteristically unreliable over any great length of
                         time.

Ba                       Insurance companies rated in this category offer
                         questionable financial security. Often the ability of
                         these companies to meet policyholder obligations may be
                         very moderate and thereby not well safeguarded in the
                         future.

B                        Insurance companies rated in this company offer poor
                         financial security. Assurance of punctual payment of
                         policyholder obligations over any long period of time
                         is small.

Caa                      Insurance companies rated in this category offer very
                         poor financial security. They may be in default on
                         their policyholder obligations or there may be present
                         elements of danger with respect to punctual payment of
                         policyholder obligations and claims.

Ca                       Insurance companies rated in this category offer
                         extremely poor financial security. Such companies are
                         often in default on their policyholder obligations or
                         have other marked shortcomings.

C                        Insurance companies rated in this category are the
                         lowest rated class of insurance company and can be
                         regarded as having extremely poor prospects of ever
                         offering financial security.
 

S & P

An insurer rated "BBB" or higher is regarded as having financial security
characteristics that outweigh any vulnerabilities, and is highly likely to have
the ability to meet financial commitments.

AAA                      EXTREMELY STRONG financial security characteristics.
                         "AAA" is the highest Insurer Financial Strength Rating
                         assigned by Standard & Poor's.

AA                       VERY STRONG financial security characteristics,
                         differing only slightly from those rated higher.

A                        STRONG financial security characteristics, but is
                         somewhat more likely to be affected by adverse business
                         conditions than are insurers with higher ratings.
 
<PAGE>   184
BBB                      GOOD financial security characteristics, but is more
                         likely to be affected by adverse business conditions
                         than are higher rated insurers.

An insurer rated "BB" or lower is regarded as having vulnerable characteristics
that may outweigh its strength. "BB" indicates the least degree of vulnerability
within the range; "CC" the highest.

BB                       MARGINAL financial security characteristics. Positive
                         attributes exist, but adverse business conditions could
                         lead to insufficient ability to meet financial
                         commitments.

B                        WEAK financial security characteristics. Adverse 
                         business conditions will likely impair its ability to
                         meet financial commitments.

CCC                      VERY WEAK financial security characteristics, and is
                         dependent on favorable business conditions to meet
                         financial commitments.

CC                       EXTREMELY WEAK financial security characteristics and
                         is likely not to meet some of its financial
                         commitments.

R                        An insurer rated "R" has experienced a REGULATORY
                         ACTION regarding solvency. The rating does not apply to
                         insurers subject only to nonfinancial actions such as
                         market conduct violations.

NR                       NOT RATED, which implies no opinion about the insurer's
                         financial security.

Plus (+) or minus (-)
Following ratings from "AA" to "CCC" show relative standing within the major
rating categories.
 

                     DESCRIPTION OF MUNICIPAL NOTE RATINGS
 
MOODY'S
MIG1 & VMIG1             Short-term municipal securities rated MIG1 or VMIG1 are
                         of the best quality. They have strong protection from
                         established cash flows, superior liquidity support or
                         demonstrated broad-based access to the market for
                         refinancing.

MIG2 & VMIG2             These short-term municipal securities rated are of high
                         quality. Margins of protection are ample although not
                         so large as in the preceding group.

MIG3 & VMIG              Favorable quality. All security elements are accounted
                         for, but the undeniable strength of the preceding
                         grades is lacking. Liquidity and cash flow protection
                         may be narrow and marketing access for refinancing is
                         likely to be less well established.

MIG4 & VMIG4             This denotes adequate quality protection commonly
                         regarded as required of an investment security is
                         present and although not distinctly or predominantly
                         speculative, there is a specific risk.

SG                       This denotes speculative quality.


S&P
An S&P note rating reflects the liquidity concerns and market access risks
unique to notes. Notes due in three years or less will likely receive a note
rating. Notes maturing beyond three years will most likely receive a
long-term debt rating.

SP-1             Strong capacity to pay principal and interest. Those issues
                 determined to possess overwhelming safety characteristics
                 will be given a plus (+) designation.

SP-2             Satisfactory capacity to pay principal and interest.

SP-3             Speculative capacity to pay principal and interest.
 
<PAGE>   185
                     DESCRIPTION OF PREFERRED STOCK RATINGS
 

MOODY'S

aaa              Top-quality preferred stock. This rating indicates good
                 asset protection and the least risk of dividend impairment
                 within the universe of preferred stocks.

aa               High-grade preferred stock. This rating indicates that there
                 is a reasonable assurance the earnings and asset protection
                 will remain relatively well maintained in the foreseeable
                 future.

a                Upper-medium grade preferred stock. While risks are judged
                 to be somewhat greater than in the "aaa" and "aa"
                 classification, earnings and asset protection are,
                 nevertheless, expected to be maintained at adequate levels.

baa              Medium-grade preferred stock, neither highly protected nor
                 poorly secured. Earnings and asset protection appear
                 adequate at present but may be questionable over any great
                 length of time.

ba               Considered to have speculative elements and its future
                 cannot be considered well assured. Earnings and asset
                 protection may be very moderate and not well safeguarded
                 during adverse periods. Uncertainty of position
                 characterizes preferred stocks in this class.

b                Lacks the characteristics of a desirable investment.
                 Assurance of dividend payments and maintenance of other
                 terms of the issue over any long period of time may be
                 small.

caa              Likely to be in arrears on dividend payments. This rating
                 designation does not purport to indicate the future status
                 of payments.

ca               Speculative in a high degree and is likely to be in arrears
                 on dividends with little likelihood of eventual payments.

c                Lowest rated class of preferred or preference stock. Issues
                 so rated can thus be regarded as having extremely poor
                 prospects of ever attaining any real investment standing.

Note: Moody's applies numerical modifiers 1, 2, and 3 in each rating
classification; the modifier 1 indicates that the security ranks in the
higher end of its generic rating category; the modifier 2 indicates a
mid-range ranking and the modifier 3 indicates that the issue ranks in the
lower end of its generic rating category.
 
S&P
S&P's preferred stock rating is an assessment of the capacity and willingness
of an issuer to pay preferred stock dividends and any applicable sinking
Portfolio obligations.

AAA              Highest rating. This rating indicates an extremely strong
                 capacity to pay the preferred stock obligations.

AA               High-quality, fixed-income security. The capacity to pay
                 preferred stock obligations is very strong, although not as
                 overwhelming as for issues rated "AAA."

A                Backed by a sound capacity to pay the preferred stock
                 obligations, although it is somewhat more susceptible to the
                 adverse effects of changes in circumstances and economic
                 conditions.

BBB              Backed by an adequate capacity to pay the preferred stock
                 obligations. Whereas the issuer normally exhibits adequate
                 protection parameters, adverse economic conditions or
                 changing circumstances are more likely to lead to a weakened
                 capacity to make payments for a preferred stock in this
                 category than for issues in the "A" category.

BB, B,           Regarded, on balance, as predominantly speculative with

CCC              respect to the issuer's capacity to pay preferred stock
                 obligations. BB indicates the lowest degree of speculation
                 and CCC the highest. While such issues will likely have some
                 quality and protective characteristics, these are outweighed
                 by large uncertainties or major risk exposures to adverse
                 conditions.

CC               In arrears on dividends or sinking Portfolio payments, but
                 that is currently paying.

<PAGE>   186
C                Nonpaying issue.

D                Nonpaying issue with the issuer in default on debt
                 instruments.

N.R.             No rating has been requested, insufficient information on
                 which to base a rating, or Standard & Poor's does not rate a
                 particular type of obligation as a matter of policy.
 
Plus (+) or minus (-)
To provide more detailed indications of preferred stock quality, ratings from
AA to CCC may be modified by the addition of a plus or minus sign to show
relative standing within the major rating categories.

 
                     DESCRIPTION OF MUNICIPAL BOND RATINGS
           (INCLUDING FOREIGN, MORTGAGE AND ASSET-BACKED SECURITIES)
 
S&P
INVESTMENT GRADE

AAA                      The highest rating. The rating indicates an extremely
                         strong capacity to meet its financial commitment.

AA                       Differs from AAA issues only in a small degree. The
                         obligor's capacity to meet its financial commitment is
                         very strong.

A                        These bonds are somewhat more susceptible to the
                         adverse effects of changes in circumstances and
                         economic conditions than debt in higher rated
                         categories. However, capacity to meet its financial
                         commitment on the obligation is still strong.

BBB                      Exhibits adequate protection parameters. However,
                         adverse economic conditions or changing circumstances
                         are more likely to lead to a weakened capacity to meet
                         its financial commitment on the obligations.
 

SPECULATIVE GRADE

BB                       Less vulnerable to non-payment than other speculative
                         issues. However, these bonds face major ongoing
                         uncertainties or exposure to adverse business,
                         financial or economic conditions which could lead to
                         inadequate capacity to meet financial commitment on the
                         obligations.

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

CCC                      Currently vulnerable to non-payment, and is dependent
                         upon favorable business, financial, and economic
                         conditions to meet its financial commitment on the
                         obligation. In the event of adverse business,
                         financial, or economic conditions, they are not likely
                         to have the capacity to meet its financial commitment
                         on the obligation.

CC                       Currently highly vulnerable to non-payment.

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

D                        Bonds in payment default.

Ratings from AA to CCC may be modified by a plus (+) or minus (-) to show
relative standing within the major rating categories.
 
<PAGE>   187
MOODY'S
INVESTMENT GRADE

Aaa                  Best quality. They carry the smallest degree of investment
                     risk and are generally referred to as "gilt edged."
                     Interest payments are protected by a large, or an
                     exceptionally stable, margin and principal is secure.

Aa                   High quality by all standards. Margins of protection may
                     not be as large as in Aaa securities, fluctuation of
                     protective elements may be greater, or there may be other
                     elements present that make the long-term risks appear
                     somewhat larger than in Aaa securities.

A                    These bonds possess many favorable investment attributes
                     and are to be considered as upper-medium grade obligations.
                     Factors giving security to principal and interest are
                     considered adequate, but elements may be present which
                     suggest a susceptibility to impairment sometime in the
                     future.

Baa                  These bonds are considered medium-grade obligations (i.e.,
                     they are neither highly protected nor poorly secured).
                     Interest payments and principal security appear adequate
                     for the present but certain protective elements may be
                     lacking or may be characteristically unreliable over any
                     great length of time. Such bonds lack outstanding
                     investment characteristics and in fact have speculative
                     characteristics as well.
 

NON-INVESTMENT GRADE

Ba                   These bonds have speculative elements; their future cannot
                     be considered as well assured. The protection of interest
                     and principal payments may be very moderate and thereby not
                     well safeguarded during good and bad times over the future.

B                    These bonds lack the characteristics of a desirable
                     investment (i.e., potentially low assurance of timely
                     interest and principal payments or maintenance of other
                     contract terms over any long period of time may be small).

Caa                  Bonds in this category have poor standing and may be in
                     default. These bonds carry an element of danger with
                     respect to principal and interest payments.

Ca                   Speculative to a high degree and could be in default or
                     have other marked shortcomings. Ca is the lowest rating.
 

                     DESCRIPTION OF SHORT-TERM DEBT RATINGS

Thompson Bank Watch, Inc. ("TBW") assigns ratings to specific debt instruments
with original maturities of one year or less. The TBW Short-Term ratings
specifically assess the likelihood of an untimely payment of principal and
interest.

TBW-1                Very high degree of likelihood that principal and interest
                     will be paid on a timely basis.

TBW-2                While degree of safety regarding timely repayment of
                     principal and interest is strong, the relative degree is
                     not as high as for issues rated TBW-1.

TBW-3                Lowest investment grade category. While more susceptible to
                     adverse developments than obligations with higher ratings,
                     capacity to service principal and interest in a timely
                     fashion is considered adequate.

TBW-4                Non-investment grade and, therefore, speculative.
 
<PAGE>   188
                                     PART C

                                OTHER INFORMATION

ITEM 23.      EXHIBITS

   
                     (a)    Amended Declaration of Trust dated February 17, 1999
                            is filed herewith.
    

                     (b)    Registrant's Bylaws Dated July 8, 1993, are
                            incorporated by reference to Registrant's
                            registration statement on Form N-1A, filed
                            on July 14, 1993.
                     (c)    None
   
                     (d)(1) Amended and Restated Investment Advisory Agreement 
                            dated February 17, 1999 by and between One Group
                            Investment Trust and Banc One Investment Advisors
                            Corporation is filed herewith.
    
                     (e)    None
                     (f)    Deferred Compensation Plan for Trustees of The One
                            Group Investment Trust is incorporated by reference 
                            to Post-Effective Amendment No. 10 to the 
                            Registrant's registration statement on Form N-1A, 
                            filed on January 27, 1999.
                     (g)(1) Custodian Agreement with State Street Bank and
                            Trust Company, is incorporated by reference to
                            Pre-Effective Amendment No. 1 to the Registrant's
                            registration statement on Form N-1A, filed on May
                            26, 1994.
                     (g)(2) Subcustodian Agreement for The One Group
                            Investment Trust between State Street Bank and Trust
                            Company, Bank One Trust Company, N.A. and the
                            Registrant dated as of June 11, 1998 is incorporated
                            by reference to Post-Effective Amendment No. 8 to 
                            the Registrant's registration statement on Form 
                            N-1A, filed October 7, 1998.
   
                     (h)(1) Amended and Restated Transfer and Dividend 
                            Disbursing Agent Agreement dated February 17, 1999
                            between One Group Investment Trust and Nationwide
                            Investors Services, Inc. is filed herewith.
                     (h)(2) Amended and Restated Fund Participation Agreement 
                            dated as of February 17, 1999 by and among
                            Nationwide Life and Annuity Insurance Company, One
                            Group Investment Trust, and Nationwide Advisory 
                            Services, Inc. is filed herewith.
                     (h)(3) Amended and Restated Administrative Services
                            Agreement between Registrant and Nationwide Advisory
    


<PAGE>   189
   
                            Services, Inc. dated February 17, 1999 is filed
                            herewith.
                     (h)(4) Form of Sub-Administration Agreement dated April 1,
                            1999 between the Registrant and Banc One Investment
                            Advisors Corporation is filed herewith.
                     (h)(5) Securities Lending Agreement for The One Group
                            Investment Trust between the Registrant, Banc One
                            Investment Advisors Corporation, and Bank One Trust
                            Company, N.A. dated as of June 15, 1998 is 
                            incorporated by reference to Post-Effective 
                            Amendment No. 8 to the Registrant's registration 
                            statement on Form N-1A, filed October 7, 1998.
                     (h)(6) Form of Amendment to Exhibit A to Securities Lending
                            Agreement for the One Group Investment Trust between
                            the Registrant, Banc One Investment Advisors
                            Corporation, and Bank One Trust Company, N.A. is
                            filed herewith.
                     (i)    Opinion of Ropes & Gray is filed herewith.
    
                     (j)(1) Consent of Ropes & Gray is filed herewith.
                     (j)(2) Consent of PricewaterhouseCoopers LLP, Independent
                            Accountants is filed herewith.
   
                     (j)(3) Consent of Arthur Andersen LLP, Independent
                            Accountants is filed herewith.
    
                     (k)    None
                     (l)    None
                     (m)    None
                     (n)    Financial Data Schedules filed herewith.
                     (o)    None

                     Copies of powers of attorney of Registrant's trustees and
                     officers whose names are signed to this Registration.
                     Statement pursuant to said powers of attorneys are filed
                     herewith.

ITEM 24. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT As of
         the effective date of this Registration Statement, there are no persons
         controlled or under common control with the Registrant.

ITEM 25. INDEMNIFICATION

         Limitation of Liability and Indemnification provisions for Trustees,
         Shareholders, officers, employees and agents of Registrant are set
         forth in Article V, Sections 5.1 through 5.3 of the Declaration of
         Trust. No Trustee, officer, employee or agent of the Trust shall be
         subject to any personal liability whatsoever to any Person other than
         the Trust or its Shareholders, in connection with Trust Property or the
         affairs of the Trust, save only that arising from bad faith, willful
         misfeasance, gross negligence or reckless disregard for his duty to
         such Person; and all such Persons shall look solely to the Trust
         Property for satisfaction of claims of any nature arising in connection
         with the affairs of the Trust. If any Shareholder, Trustee, officer,
         employee or agent, as such, of the Trust is made a party to any suit or
         proceeding to enforce any such liability, he shall not, on account
         thereof, be held to any personal liability. The Trust shall indemnify
         and hold each Shareholder harmless from and against all claims and
         liabilities, to which such Shareholder may become subject by reason of
         his being or having been a Shareholder, and shall reimburse such
         Shareholder for all legal and other expenses reasonably incurred by him
         in connection with any such claim or liability. The rights accruing to
         a Shareholder under Section 5.1 of the Declaration of Trust shall not
         exclude any other right to which such Shareholder may be lawfully
         entitled, nor shall anything herein contained restrict the right of the
         Trust to indemnify or reimburse a Shareholder in any appropriate
         situation even though not specifically provided herein.

         No Trustee, officer, employee or agent of the Trust shall be liable to
         the Trust, its Shareholders, or to any Shareholder, Trustee, officer,
         employee or agent thereof for any action or failure to act 

<PAGE>   190

         (including without limitation the failure to compel in any way any
         former or acting Trustee to redress any breach of trust) except for his
         own bad faith, willful misfeasance, gross negligence or reckless
         disregard of his duties.

         (a)      Subject to the exceptions and limitations contained in
                  paragraph (b) below:

                  (i) every person who is or has been a Trustee or officer of
         the Trust shall be indemnified by the Trust against all liability and
         against all expenses reasonably incurred or paid by him in connection
         with any claim, action, suit or proceeding in which he becomes involved
         as a party or otherwise by virtue of his being or having been a Trustee
         or officer and against amounts paid or incurred by him in the
         settlement thereof:

                  (ii) the words "claim," "action," "suit" or "proceeding" shall
         apply to all claims, actions, suits or proceedings (civil, criminal, or
         other, including appeals), actual or threatened; and the words
         "liability" and "expenses" shall include, without limitation,
         attorneys' fees, costs, judgments, amounts paid in settlement, fines,
         penalties and other liabilities.

         (b)      No indemnification shall be provided hereunder to a Trustee or
                  officer:

                  (i) against any liability to the Trust or the Shareholders by
         reason of a final adjudication by the court or other body before which
         the proceeding was brought that he engaged in willful misfeasance, bad
         faith, gross negligence or reckless disregard of the duties involved in
         the conduct of his office;

                  (ii) with respect to any matter as to which he shall have been
         finally adjudicated not to have acted in good faith in the reasonable
         belief that his action was in the best interest of the Trust:

                  (iii) in the event of a settlement of other disposition not
         involving a final adjudication as provided in paragraphs (b) (i) or (b)
         (ii) resulting in a payment by a Trustee or officer, unless there has
         been either a determination that such Trustee or officer did not engage
         in willful misfeasance, bad faith, gross negligence or reckless
         disregard of the duties involved in the conduct of his office by the
         court or other body approving the settlement or other disposition or a
         reasonable determination, based upon a review of readily available
         facts (as opposed to a full trial-type inquiry) that he did not engage
         in such conduct:

                  (A) by vote of a majority of the Disinterested Trustees acting
         on the matter (provided that a majority of the Disinterested Trustees
         then in office act on the matter); or

                  (B) by written opinion of independent legal counsel.

         (c) The rights of indemnification herein provided may be insured
         against by policies maintained by the Trust, shall be severable, shall
         not affect any other rights to which any Trustee or officer may now or
         hereafter be entitled, shall continue as to a Person who has ceased to
         be such Trustee or officer and shall inure to the benefit of the heirs,
         executors and administrators of such Person. Nothing contained herein
         shall affect any rights to indemnification to which personnel other
         than Trustees and officers may be entitled by contract or otherwise
         under law.

         (d) Expenses of preparation and presentation of a defense to any claim,
         action, suit or proceeding of the character described in paragraph (a)
         of Section 5.3 of the Declaration of Trust shall be advanced by the
         Trust prior to final disposition thereof upon

<PAGE>   191

         receipt of an undertaking by or on behalf of the recipient to repay
         such amount if it is ultimately determined that he is not entitled to
         indemnification under Section 5.3 of the Declaration of Trust, provided
         that either:

                  (i) such undertaking is secured by a surety bond or some other
         appropriate security or the Trust shall be insured against losses
         arising out of any such advances; or

                  (ii) a majority of the Disinterested Trustees acting on the
         matter (provided that a majority of the Disinterested Trustees then in
         office act on the matter) or an independent legal counsel in a written
         opinion, shall determine, based upon a review of readily available
         facts (as opposed to a full trial-type inquiry), that there is reason
         to believe that the recipient ultimately will be found entitled to
         indemnification.

         As used in Section 5.3 of the Declaration of Trust, a "Disinterested
         Trustee" is one (i) who is not an "Interested Person" by any rule,
         regulation or order of the Commission), and (ii) against whom none of
         such actions, suits or other proceedings or another action, suit or
         other proceeding on the same or similar grounds is then or had been
         pending. See Item 24(b)(1) (Exhibit 1) above, whose terms and
         conditions as summarized herein are hereby incorporated by reference.

         Limitation of liability provisions for the Investment Advisor are set
         forth in paragraph 4 of the Investment Advisory Agreement. The
         Investment Advisor shall not be liable for any instructions, action or
         failure to act, or for any loss sustained by reason of the adoption of
         any investment policy or the purchase, sale or retention of any
         security on the recommendation of the Investment Advisor, whether or
         not such recommendation shall have been based upon its own
         investigation and research made by any other individual, firm or
         corporation, if such recommendation shall have been made and such other
         individual, firm or corporation shall have been selected with due care
         and in good faith; but nothing herein contained shall be construed to
         protect the Manager against any liability to the Trust or its security
         holders by reason of willful misfeasance, bad faith or gross negligence
         in the performance of its duties or by reason of its reckless disregard
         of its obligations and duties under this agreement. See item 24(b)(5)
         above (Exhibit 3), whose terms and conditions as summarized herein are
         hereby incorporated by reference.

         Registrant undertakes that it will comply with the indemnification
         provisions of its Declaration of Trust, Investment Advisory Agreement,
         and any other agreement to which the Registrant is a party containing
         indemnification provisions in accordance with the provisions of
         Investment Company Act of 1940 Release No. 11330, as modified from time
         to time.

         Insofar as indemnification for liability arising under the Securities
         Act of 1933 may be permitted to Trustees, officers and controlling
         persons of the Registrant pursuant to the Registrant's Bylaws, or
         otherwise, the Registrant has been advised that in the opinion of the
         Securities and Exchange Commission such indemnification is against
         public policy as expressed in the Act and is, therefore, unenforceable.
         In the event that a claim for indemnification against such liabilities
         (other than the payment by the Registrant of expenses incurred or paid
         by a Trustee, officer or controlling person of the Registrant in the
         successful defense of any action, suit or proceeding) is asserted by
         such director, officer or controlling person in connection with the
         securities being registered, the Registrant will, unless in the opinion
         of its counsel the matter has been settled by controlling precedent,
         submit to a court of appropriate jurisdiction the question whether such
         indemnification by it is against public policy as expressed in

<PAGE>   192

         the Act and will be governed by the final adjudication of such issue.

ITEM 26. BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISOR

         Banc One Investment Advisors Corporation (the "Advisor") performs
         investment advisory services for all of the Funds of the Group. As of
         December 31, 1998, the Advisor, an indirect wholly-owned subsidiary of
         BANK ONE CORPORATION, a bank holding company located in the state of,
         Illinois, managed over $54 billion in assets. BANK ONE CORPORATION has
         affiliate banking organizations in Arizona, Colorado, Illinois,
         Indiana, Kentucky, Louisiana, Michigan, Ohio, Oklahoma, Texas, Utah,
         West Virginia and Wisconsin. In addition, BANK ONE CORPORATION has
         several affiliates that engage in data processing, venture capital,
         investment and merchant banking, and other diversified services
         including trust management, investment management, brokerage, equipment
         leasing, mortgage banking, consumer finance, and insurance.

         To the knowledge of Registrant, none of the directors or officers of
         the Advisor, except as set forth herein, is or has been, at any time
         during the past two calendar years, engaged in any other business,
         profession, vocation or employment of a substantial nature. Set forth
         below are the names and principal businesses of the directors of the
         Advisor who are engaged in any other business, profession, vocation or
         employment of a substantial nature.

                    BANC ONE INVESTMENT ADVISORS CORPORATION

   
<TABLE>
<CAPTION>
POSITION WITH
BANC ONE INVESTMENT                        OTHER SUBSTANTIAL                         TYPE OF
ADVISORS CORPORATION                          OCCUPATION                            BUSINESS
- --------------------                          ----------                            --------

<S>                                    <C>                                          <C>    
David J. Kundert                       Chairman, Bank One Trust                     Investment
Chairman & CEO                         Company, NA, 100 East Broad Street,          Advisor
                                       Columbus, Ohio 43215

Frederick L. Cullen                    Chairman/CEO, Bank One                       Banking
Director                               NA; Chairman and ,
                                       Chief Operating Officer,
                                       Banc One Ohio Corporation
                                       100 East Broad Street,
                                       Columbus, Ohio 43215

Kenneth T. Stevens, Director           CEO, Bank One Retail Group                   Banking
                                       1111 Polaris Parkway
                                       Columbus, Ohio 43240

Peter W. Atwater, Director             Former Treasurer, BANK ONE CORPORATION,      Banking
and Chief Operating Officer            100 East Broad Street,
                                       Columbus, Ohio 43215

David R. Meuse, Director               Chairman/CEO Banc One Capital Holding       Investment
                                       Corporation, 150 East Gay Street,
                                       Columbus, Ohio 43215

William G. Jurgenson, Director         Executive Vice President                     Banking
                                       First National Bank of Chicago,
                                       1 First National Plaza,
                                       Chicago, Illinois 606670

William P. Boardman, Director          Senior Executive Vice President              Banking
                                       and Head of Acquisitions,
                                       BANK ONE CORPORATION
                                       One First National Plaza,
                                       Chicago, Illinois 60670

Richard W. Vague, Director             Chairman & CEO,                            Credit Card
                                       First USA
                                       201 North Market Street
                                       Wilmington, Delaware 19801
</TABLE>
    

ITEM 27. PRINCIPAL UNDERWRITER

         Not applicable.
<PAGE>   193

ITEM 28.  LOCATION OF ACCOUNTS AND RECORDS

       Trust Agreements, Bylaws and Minute Books:
              Alan G. Priest
              Ropes & Gray
              One Franklin Square
              1301 K Street, N.W.
              Suite 800 East
              Washington, D.C. 20005-3333

       Records relating to investment advisory services:
              Banc One Investment Advisors Corporation
              1111 Polaris Parkway, Suite 100
              Columbus, OH 43271-0211

       All other Accounts and Records:
              Christopher A. Cray
              Nationwide  Advisory
              Services, Inc.
              Three Nationwide Plaza 
              Columbus, OH 43215

ITEM 29.  MANAGEMENT SERVICES

         All management-related service contracts entered into by Registrant are
discussed in Parts A and B of this Registration Statement.

ITEM 30.  UNDERTAKINGS

          None 
<PAGE>   194


                                   SIGNATURES
   
         PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933 AND THE
INVESTMENT COMPANY ACT OF 1940, AS AMENDED, THE REGISTRANT CERTIFIES THAT IT
MEETS ALL OF THE REQUIREMENTS FOR EFFECTIVENESS OF THIS POST-EFFECTIVE AMENDMENT
NO. 11 TO THE REGISTRANT'S REGISTRATION STATEMENT ON FORM N-1A PURSUANT TO RULE
485(b) UNDER THE SECURITIES ACT OF 1933 AND HAS DULY CAUSED THIS AMENDMENT TO
THE REGISTRATION STATEMENT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED,
THERETO DULY AUTHORIZED, IN THE CITY OF WASHINGTON, DISTRICT OF COLUMBIA ON THE
26th DAY OF MARCH, 1999.
    


                                  ONE GROUP(R) INVESTMENT TRUST (Registrant)

                                   /s/James F. Laird, Jr. *
                              By:  James F. Laird, Jr. 

   
PURSUANT TO THE REQUIREMENT OF THE SECURITIES ACT OF 1933, THIS AMENDMENT TO THE
REGISTRATION STATEMENT OF THE ONE GROUP(R) INVESTMENT TRUST HAS BEEN SIGNED
BELOW BY THE FOLLOWING PERSONS IN THE CAPACITIES INDICATED ON THE 26th DAY OF
MARCH, 1999.
    

   
<TABLE>
<CAPTION>
        SIGNATURE                                 TITLE                        DATE
        ---------                                 -----                        ----
<S>                                               <C>                      <C>
/S/PETER C. MARSHALL*                             Trustee                  March 26, 1999
   Peter C. Marshall

/S/CHARLES I. POST*                               Trustee                  March 26, 1999
   Charles I. Post

/S/FREDERICK W. RUEBECK*                          Trustee                  March 26, 1999
   Frederick W. Ruebeck

/S/ROBERT A. ODEN JR.*                            Trustee                  March 26, 1999
   Robert A. Oden Jr.

/S/JOHN F. FINN*                                  Trustee                  March 26, 1999
   John F. Finn

PRINCIPAL EXECUTIVE OFFICER/PRINCIPAL ACCOUNTING AND FINANCIAL OFFICER

JAMES F. LAIRD, JR.*                              President                March 26, 1999
James F. Laird, Jr.                               and Treasurer
</TABLE>

*By /S/ALAN PRIEST
    

Alan Priest
Attorney-in-fact, pursuant to powers of attorney filed herewith.

<PAGE>   195
                                POWER OF ATTORNEY
                                -----------------


         Frederick W. Ruebeck, whose signature appears below, does hereby
constitute and appoint Martin E. Lybecker, Alan G. Priest, and Alyssa
Albertelli, each individually, his true and lawful attorneys and agents, with
power of substitution or resubstitution, to do any and all acts and things and
to execute any and all instruments which said attorneys and agents, each
individually, may deem necessary or advisable or which may be required to enable
The One Group(R) Investment Trust (the "Trust"), to comply with the Investment
Company Act of 1940, as amended, and the Securities Act of 1933, as amended
("Acts"), and any rules, regulations or requirements of the Securities and
Exchange Commission in respect thereof, in connection with the filing and
effectiveness of any and all instruments and/or documents pertaining to the
federal registration of the shares of the Trust, including specifically, but
without limiting the generality of the foregoing, the power and authority to
sign in the name and on behalf of the undersigned as a director and/or officer
of the Trust any and all amendments to the Trust's Registration Statement as
filed with the Securities and Exchange Commission under said Acts, and the
undersigned does hereby ratify and confirm all that said attorneys and agents,
or either of them, shall do or cause to be done by virtue thereof.

Dated:  May 21, 1998


                                                /s/ Frederick W. Ruebeck
                                                ------------------------
                                                Frederick W. Ruebeck

<PAGE>   196
                                POWER OF ATTORNEY
                                -----------------


         John F. Finn, whose signature appears below, does hereby constitute and
appoint Martin E. Lybecker, Alan G. Priest, and Alyssa Albertelli, each
individually, his true and lawful attorneys and agents, with power of
substitution or resubstitution, to do any and all acts and things and to execute
any and all instruments which said attorneys and agents, each individually, may
deem necessary or advisable or which may be required to enable The One Group(R)
Investment Trust (the "Trust"), to comply with the Investment Company Act of
1940, as amended, and the Securities Act of 1933, as amended ("Acts"), and any
rules, regulations or requirements of the Securities and Exchange Commission in
respect thereof, in connection with the filing and effectiveness of any and all
instruments and/or documents pertaining to the federal registration of the
shares of the Trust, including specifically, but without limiting the generality
of the foregoing, the power and authority to sign in the name and on behalf of
the undersigned as a director and/or officer of the Trust any and all amendments
to the Trust's Registration Statement as filed with the Securities and Exchange
Commission under said Acts, and the undersigned does hereby ratify and confirm
all that said attorneys and agents, or either of them, shall do or cause to be
done by virtue thereof.

Dated:  May 27, 1998


                                                /s/ John F. Finn
                                                ----------------
                                                John F. Finn


<PAGE>   197
                                POWER OF ATTORNEY
                                -----------------


         Charles I. Post, whose signature appears below, does hereby constitute
and appoint Martin E. Lybecker, Alan G. Priest, and Alyssa Albertelli, each
individually, his true and lawful attorneys and agents, with power of
substitution or resubstitution, to do any and all acts and things and to execute
any and all instruments which said attorneys and agents, each individually, may
deem necessary or advisable or which may be required to enable The One Group(R)
Investment Trust (the "Trust"), to comply with the Investment Company Act of
1940, as amended, and the Securities Act of 1933, as amended ("Acts"), and any
rules, regulations or requirements of the Securities and Exchange Commission in
respect thereof, in connection with the filing and effectiveness of any and all
instruments and/or documents pertaining to the federal registration of the
shares of the Trust, including specifically, but without limiting the generality
of the foregoing, the power and authority to sign in the name and on behalf of
the undersigned as a director and/or officer of the Trust any and all amendments
to the Trust's Registration Statement as filed with the Securities and Exchange
Commission under said Acts, and the undersigned does hereby ratify and confirm
all that said attorneys and agents, or either of them, shall do or cause to be
done by virtue thereof.

Dated:  May 21, 1998


                                                /s/ Charles I. Post
                                                -------------------
                                                Charles I. Post


<PAGE>   198
                                POWER OF ATTORNEY
                                -----------------


         Peter C. Marshall, whose signature appears below, does hereby
constitute and appoint Martin E. Lybecker, Alan G. Priest, and Alyssa
Albertelli, each individually, his true and lawful attorneys and agents, with
power of substitution or resubstitution, to do any and all acts and things and
to execute any and all instruments which said attorneys and agents, each
individually, may deem necessary or advisable or which may be required to enable
The One Group(R) Investment Trust (the "Trust"), to comply with the Investment
Company Act of 1940, as amended, and the Securities Act of 1933, as amended
("Acts"), and any rules, regulations or requirements of the Securities and
Exchange Commission in respect thereof, in connection with the filing and
effectiveness of any and all instruments and/or documents pertaining to the
federal registration of the shares of the Trust, including specifically, but
without limiting the generality of the foregoing, the power and authority to
sign in the name and on behalf of the undersigned as a director and/or officer
of the Trust any and all amendments to the Trust's Registration Statement as
filed with the Securities and Exchange Commission under said Acts, and the
undersigned does hereby ratify and confirm all that said attorneys and agents,
or either of them, shall do or cause to be done by virtue thereof.

Dated:  May 21, 1998


                                                /s/ Peter C. Marshall
                                                ---------------------
                                                Peter C. Marshall


<PAGE>   199
                                POWER OF ATTORNEY
                                -----------------


         Robert A. Oden, Jr., whose signature appears below, does hereby
constitute and appoint Martin E. Lybecker, Alan G. Priest, and Alyssa
Albertelli, each individually, his true and lawful attorneys and agents, with
power of substitution or resubstitution, to do any and all acts and things and
to execute any and all instruments which said attorneys and agents, each
individually, may deem necessary or advisable or which may be required to enable
The One Group(R) Investment Trust (the "Trust"), to comply with the Investment
Company Act of 1940, as amended, and the Securities Act of 1933, as amended
("Acts"), and any rules, regulations or requirements of the Securities and
Exchange Commission in respect thereof, in connection with the filing and
effectiveness of any and all instruments and/or documents pertaining to the
federal registration of the shares of the Trust, including specifically, but
without limiting the generality of the foregoing, the power and authority to
sign in the name and on behalf of the undersigned as a director and/or officer
of the Trust any and all amendments to the Trust's Registration Statement as
filed with the Securities and Exchange Commission under said Acts, and the
undersigned does hereby ratify and confirm all that said attorneys and agents,
or either of them, shall do or cause to be done by virtue thereof.

Dated:  May 21, 1998



                                                /s/ Robert A. Oden, Jr.
                                                -----------------------
                                                Robert A. Oden, Jr.


<PAGE>   200
                               POWER OF ATTORNEY

     James F. Laird, Jr., whose signature appears below, does hereby constitute 
and appoint Martin E. Lybecker and Alan G. Priest, each individually, his true 
and lawful attorneys and agents, with power of substitution or resubstitution, 
to do any and all acts and things and to execute any and all instruments which 
said attorneys and agents, each individually, may deem necessary or advisable 
or which may be required to enable The One Group(R) Investment Trust (the 
"Trust") to comply with the Investment Company Act of 1940, as amended and the 
Securities Act of 1933, as amended ("Acts"), and any rules, regulations or 
requirements of the Securities and Exchange Commission in respect thereof, in 
connection with the filing and effectiveness of any and all instruments and/or 
documents pertaining to the federal registration of the shares of the Trust, 
including specifically, but without limiting the generality of the foregoing, 
the power and authority to sign in the name and on behalf of the undersigned as 
trustee and or officer of the Trust any and all amendments to the Trust's 
Registration Statement as filed with the Securities and Exchange Commission 
under said Acts, and the undersigned does hereby ratify and confirm all that 
said attorneys and agents, or either of them, shall do or cause to be done by 
virtue thereof.

Dated February 29, 1996


                                             /s/ James F. Laird, Jr.
                                             ------------------------------
                                             James F. Laird, Jr.

<PAGE>   201


   
<TABLE>
<CAPTION>
EXHIBIT INDEX                     DESCRIPTION
- -------------                     -----------

<S>                               <C>                                                                  
23(a)                             Amended Declaration of Trust dated February 
                                  17, 1999

23(d)(1)                          Amended and Restated Investment Advisory 
                                  Agreement dated February 17, 1999 by and 
                                  between One Group Investment Trust and Banc 
                                  One Investment Advisors Corporation

23(h)(1)                          Amended and Restated Transfer and Dividend 
                                  Disbursing Agent Agreement dated February, 
                                  17, 1999 between One Group Investment Trust 
                                  and Nationwide Investors Services, Inc.

23(h)(2)                          Amended and Restated Fund Participation 
                                  Agreement dated as of February 17, 1999 by and 
                                  among Nationwide Life and Annuity Insurance 
                                  Company, One Group Investment Trust, and 
                                  Nationwide Advisory Services, Inc.

23(h)(3)                          Amended and Restated Administrative Services 
                                  Agreement between Registrant and Nationwide 
                                  Advisory Services, Inc. dated February 17, 
                                  1999.

23(h)(4)                          Form of Sub-Administration Agreement dated 
                                  April 1, 1999 between Registrant and Banc One 
                                  Investment Advisors Corporation

23(h)(6)                          Form of Amendment to Exhibit A to Securities
                                  Lending Agreement for the One Group Investment
                                  Trust between the Registrant, Banc One
                                  Investment Advisors Corporation, and Bank One
                                  Trust Company, N.A.

23(i)                             Opinion of Ropes & Gray

23(j)(1)                          Consent of Ropes & Gray

23(j)(2)                          Consent of PricewaterhouseCoopers LLP

23(j)(3)                          Consent of Arthur Andersen LLP

23(n)                             Financial Data Schedules
</TABLE>
    



<PAGE>   1
                                 Exhibit 23(a)
             Amended Declaration of Trust dated February 17, 1999

<PAGE>   2


                                     AMENDED

                              DECLARATION OF TRUST

                          ONE GROUP(R) INVESTMENT TRUST


         WHEREAS, the Trustees desire to establish a trust for the investment
and reinvestment of funds contributed thereto; and

         WHEREAS, the Trustees desire that the beneficial interest in the trust
assets be divided into transferable shares of beneficial interest, as
hereinafter provided:

         NOW THEREFORE, the Trustees hereby declare that all money and property
contributed to the trust established hereunder shall be held and managed in
trust for the benefit of holders, from time to time, of the shares of beneficial
interest issued hereunder and subject to the provisions hereof.

                                    ARTICLE I

                              NAME AND DEFINITIONS

         SECTION 1.1. NAME. The name of the trust created hereby is "One
Group(R) Investment Trust".

         SECTION 1.2. DEFINITIONS. Wherever they are used herein, the following
terms have the following respective meanings:

         (a) "ADMINISTRATOR" means the party other than the Trust, to the
contract described in Section 4.3 hereof.

         (b) "BYLAWS" means the Bylaws referred to in Section 3.9 hereof, as
from time to time amended.

         (c) The terms "COMMISSION", "INTERESTED PERSON", and "MAJORITY
SHAREHOLDER VOTE" (the 67% or 50% requirement of the third sentence of Section 2
(a) (42) of the 1940 Act, whichever may be applicable) have the meanings given
them in the 1940 Act, except to the extent that the Trustees have otherwise
defined "Majority Shareholder Vote" in conjunction with the establishment of any
series of shares.

         (d) "DECLARATION" means this Declaration of Trust as amended from time
to time. Reference in this Declaration of Trust to "DECLARATION", "HEREOF",
"HEREIN" and "HEREUNDER" shall be deemed to refer to this Declaration rather
than the article or section in which such words appear.

         (e) "DISTRIBUTOR" means the party, other than the Trust, to the
contract described in Section 4.2 hereof.

         (f) "INVESTMENT ADVISER" means the party, other than the Trust, to the
contract described in section 4.1 hereof.


<PAGE>   3



         (g) The "1940 ACT" means the Investment Company Act of 1940 and the
rules and regulations thereunder, as amended from time to time.

         (h) "PERSON" means and includes individuals, corporations,
partnerships, trusts, associations, joint ventures and other entities, whether
or not legal entities, and governments and agencies and political subdivisions
thereof.

         (i) "SHAREHOLDER" means a record owner of outstanding Shares.

         (j) "SHARES" means the units of interest into which the beneficial
interest in the Trust shall be divided from time to time, including the shares
of any and all series which may be established by the Trustees, and includes
fractions of Shares as well as whole Shares.

         (k) "TRANSFER AGENT" means the party, other than the Trust, to the
contract described in Section 4.4 ---------------- hereof.

         (l)      The "TRUST" means One Group(R) Investment Trust.

         (m) The "TRUST PROPERTY" means any and all property, real or personal,
tangible or intangible, which is owned or held by or for the account of the
Trust or the Trustees.

         (n) The "TRUSTEES" means the persons who have signed this Declaration,
so long as they shall continue in office in accordance with the terms hereof,
and all other persons who may from time to time be duly elected, qualified and
serving as Trustees in accordance with the provisions hereof, and reference
herein to a Trustee or the Trustees shall refer to such person or persons in
their capacity as trustees hereunder.

                                   ARTICLE II

                                    TRUSTEES

         SECTION 2.1. NUMBER OF TRUSTEES. The number of Trustees shall be such
number as shall be fixed from time to time by a written instrument signed by a
majority of the Trustees, provided, however, that the number of Trustees shall
in no event be less than three (3) nor more than fifteen (15), except that the
number of Trustees may be one (1) prior to the commencement of public sale of
Trust Shares.

         SECTION 2.2. ELECTION AND TERM. Except for the Trustees named herein or
appointed to fill vacancies pursuant to Section 2.4 hereof, the Trustees shall
be elected by the Shareholders at an annual meeting or at a special meeting of
Shareholders. There is no requirement that the Trustees have an annual meeting
of the Shareholders. In the event the Trustees determine to have an annual or
special meeting of the Shareholders, it shall be held at such time and place and
in such manner as the Bylaws shall provide notwithstanding anything in this
section to the contrary. Except in the event of resignations or removals
pursuant to Section 2.3 hereof, each Trustee shall hold office until the next
meeting of shareholders and until his successor is elected and qualified to
serve as Trustee.

         SECTION 2.3. RESIGNATION AND REMOVAL. Any Trustee may resign his trust
(without need for prior or subsequent accounting) by an instrument in writing
signed by him and delivered to the other Trustees and such resignation shall be
effective upon such delivery, or at a later date according to the terms of the
instrument. Any of the Trustees may be removed (provided the aggregate number


<PAGE>   4

of Trustees after such removal shall not be less than the number required by
Section 2.1. hereof) with cause, by the action of two-thirds of the remaining
Trustees. Upon the resignation or removal of a Trustee, or his otherwise ceasing
to be a Trustee, he shall execute and deliver such documents as the remaining
Trustees shall require for the purpose of conveying to the Trust or the
remaining Trustees any Trust Property held in the name of the resigning or
removed Trustee. Upon the incapacity or death of any Trustee, his legal
representative shall execute and deliver on his behalf such documents as the
remaining Trustees shall require as provided in the preceding sentence.

         SECTION 2.4. VACANCIES. The term of office of a Trustee shall terminate
and a vacancy shall occur in the event of the death, resignation, removal,
bankruptcy, adjudicated incompetence or other incapacity to perform the duties
of the office of a Trustee. No such vacancy shall operate to annul this
Declaration or to revoke any existing agency created pursuant to the terms of
the Declaration. In the case of an existing vacancy, including a vacancy
existing by reason of an increase in the number of Trustees, subject to the
provisions of Section 16(a) of the 1940 Act, the remaining Trustees shall fill
such vacancy by the appointment of such other person as they in their discretion
shall see fit, made by a written instrument signed by a majority of the
Trustees. Any such appointment shall not become effective, however, until the
person named in the written instrument of appointment shall have accepted in
writing such appointment and agreed in writing to be bound by the terms of the
Declaration. An appointment of a Trustee may be made in anticipation of a
vacancy to occur at a later date by reason of retirement, resignation or
increase in the number of Trustees, provided that such appointment shall not
become effective prior to such retirement, resignation or increase in the number
of Trustees. Whenever a vacancy in the number of Trustees shall occur, until
such vacancy is filled as provided in this Section 2.4., the Trustees in office,
regardless of their number, shall have all the powers granted to the Trustees
and shall discharge all the duties imposed upon the Trustees by the Declaration.
A written instrument certifying the existence of such vacancy signed by a
majority of the Trustees shall be conclusive evidence of the existence of such
vacancy.

         SECTION 2.5. DELEGATION OF POWER TO OTHER TRUSTEES. Any Trustee may, by
power of attorney, delegate his power for a period not exceeding six (6) months
at any one time to any other Trustee or Trustees; provided that in no case shall
less than two (2) Trustees, personally exercise the powers granted to the
Trustees under the Declaration except as herein otherwise expressly provided.

                                   ARTICLE III

                               POWERS OF TRUSTEES

         SECTION 3.1. GENERAL. The Trustees shall have exclusive and absolute
control over the Trust Property and over the business of the Trust to the same
extent as if the Trustees were the sole owners of the Trust Property and
business in their own right, but with such powers of delegation as may be
permitted by the Declaration. The Trustees shall have power to conduct the
business of the Trust and carry on its operations and maintain offices both
within and without the Commonwealth of Massachusetts, in any and all states of
the United States of America, in the District of Columbia, and in any and all
commonwealths, territories, dependencies, colonies, possessions, agencies or
instrumentalities of the United States of America and of foreign governments,
and to do all such other things and execute all such instruments as they deem
necessary, proper or desirable in order to promote the interests of the Trust
although such things are not herein specifically mentioned. Any determination as
to what is in the interest of the Trust made by the Trustees in good faith shall
be conclusive. In construing the provisions of the Declaration, the presumption
shall be in favor of a grant of power to the Trustees.


<PAGE>   5

         The enumeration of any specific power herein shall not be construed as
limiting the aforesaid power. Such powers of the Trustees may be exercised
without order of or resort to any court.

         SECTION 3.2.  INVESTMENTS.  The Trustees shall have the power to:

         (a) conduct, operate and carry on the business of an investment
company;

         (b) subscribe for, invest in, reinvest in, purchase or otherwise
acquire, hold, pledge, sell, assign, transfer, exchange, distribute, lend or
otherwise deal in or dispose of negotiable or non-negotiable instruments,
obligations, evidences of indebtedness, certificates of deposit or indebtedness,
commercial paper, repurchase agreements, and other securities of any kind,
including, without limitation, those issued, guaranteed or sponsored by any and
all Persons including, without limitation, states, territories and possessions
of the United States, the District of Columbia and any of the political
subdivisions, agencies or instrumentalities thereof, and by the United States
Government or its agencies or instrumentalities, or international
instrumentalities, or by any bank or savings institution, or by any corporation
or organization organized under the laws of the United States or of any state,
territory or possession thereof, and of corporations or organizations organized
under foreign laws, or in "when issued" contracts for any such securities, or
retain Trust assets in cash and from time to time change the investments of the
assets of the Trust; and to exercise any and all rights, powers and privileges
of ownership or interest in respect of any and all such investments of every
kind and description, including, without limitation, the right to consent and
otherwise act with respect thereto, with power to designate one or more persons,
firms, associations or corporations to exercise any of said rights, powers and
privileges in respect of any said instruments.

         The Trustees shall not be limited to investing in obligations maturing
before the possible termination of the Trust, nor shall the Trustees be limited
by any law limiting the investments which may be made by fiduciaries.

         SECTION 3.3. LEGAL TITLE. Legal title to all the Trust Property shall
be vested in the Trustees as joint tenants except that the Trustees shall have
power to cause legal title to any Trust Property to be held by or in the name of
one or more of the Trustees, or in the name of the Trust, or in the name of any
other Person as nominee, on such terms as the Trustees may determine, provided
that the interest of the Trust therein is appropriately protected. The right,
title and interest of the Trustees in the Trust Property shall vest
automatically in each Person who may hereafter become a Trustee. Upon the
resignation, removal or death of a Trustee, he shall automatically cease to have
any right, title or interest in any of the Trust Property, and the right, title
and interest of such Trustee in the Trust Property shall vest automatically in
the remaining Trustees. Such vesting and cessation of title shall be effective
whether or not conveyancing documents have been executed and delivered.

         SECTION 3.4. ISSUANCE AND REPURCHASE OF SECURITIES. The Trustees shall
have the power to issue, sell, repurchase, redeem, retire, cancel, acquire,
hold, resell, reissue, dispose of, transfer, and otherwise deal in Shares and,
subject to the provisions set forth in Articles VII, VIII, and IX and Section
6.9 hereof, to apply to any such repurchase, redemption, retirement,
cancellation or acquisition of Shares any funds or property of the Trust whether
capital or surplus or otherwise, to the full extent now or hereafter permitted
by the laws of the Commonwealth of Massachusetts governing business
corporations.

         SECTION 3.5. BORROWING MONEY; LENDING TRUST ASSETS. The Trustees shall
have power to borrow money or otherwise obtain credit to secure the same by
mortgaging, pledging or otherwise
<PAGE>   6


subjecting as security the assets of the Trust, to endorse, guarantee, or
undertake the performance of any obligation, contract or engagement of any other
Person and to lend Trust assets.

         SECTION 3.6. DELEGATION; COMMITTEES. The Trustees shall have power to
delegate from time to time to such of their number or to officers, employees or
agents of the Trust the doing of such things and the execution of such
instruments either in the name of the Trust or the names of the Trustees or
otherwise as the Trustees may deem expedient.

         SECTION 3.7. COLLECTION AND PAYMENT. The Trustees shall have power to
collect all property due to the Trust; to pay all claims, including taxes,
against the Trust Property; to prosecute, defend, compromise or abandon any
claims relating to the Trust Property; to foreclose any security interest
securing any obligations, by virtue of which any property is owed to the Trust;
and to enter into releases, agreements and other instruments.

         SECTION 3.8. EXPENSES. The Trustees shall have the power to incur and
pay any expenses which in the opinion of the Trustees are necessary or
incidental to carry out any of the purposes of the Declaration, and to pay
reasonable compensation from the funds of the Trust to themselves as Trustees.
The Trustees shall fix the compensation of all officers, employees and Trustees.

         SECTION 3.9. MANNER OF ACTION; BYLAWS. Except as otherwise provided
herein or in the Bylaws, any action to be taken by the Trustees may be taken by
a majority of the Trustees present at a meeting of Trustees (a quorum being
present), including any meeting held by means of a conference telephone circuit
or similar communications equipment by means of which all persons participating
in the meeting can hear each other, or by written consents of a majority of the
Trustees (unless a higher proportion is required by law). The Trustees may adopt
Bylaws not inconsistent with this Declaration to provide for the conduct of the
business of the Trust and may amend or repeal such Bylaws to the extent such
power is not reserved to the Shareholders.

         SECTION 3.10. MISCELLANEOUS POWERS. The Trustees shall have the power
to: (a) employ or contract with such Persons as the Trustees may deem desirable
for the transaction of the business of the Trust; (b) enter into joint ventures,
partnerships and any other combinations or associations; (c) remove Trustees or
fill vacancies in or add to their number, elect and remove such officers and
appoint and terminate such agents or employees as they consider appropriate, and
appoint from their own number, and terminate, any one or more committee which
may exercise some or all of the power and authority of the Trustees as the
Trustees may determine; (d) purchase, and pay for out of Trust Property,
insurance policies insuring the Shareholders, Trustees, officers, employees,
agents, investment advisers, distributors, selected dealers or independent
contractors of the Trust against all claims arising by reason of holding any
such position or by reason of any action taken or omitted by any such Person in
such capacity, whether or not constituting negligence, or whether or not the
Trust would have the power to indemnify such Person against such liability; (e)
establish pension, profit-sharing, Share purchase, and other retirement,
incentive and benefit plans for any Trustees, officers, employees and agents of
the Trust; (f) to the extent permitted by law, indemnify any person with whom
the Trust has dealings, including the Investment Adviser, Distributor,
Administrator, Transfer Agent and selected dealers, to such extent as the
Trustees shall determine; (g) guarantee indebtedness or contractual obligations
of others; (h) determine and change the fiscal year of the Trust and the method
by which its accounts shall be kept; and (i) adopt a seal for the Trust, but the
absence of such seal shall not impair the validity of any instrument executed on
behalf of the Trust.

         SECTION 3.11. PRINCIPAL TRANSACTIONS. Except in transactions permitted
by the 1940 Act or any rule or regulation thereunder, or any order of exemption
issued by the Commission, the


<PAGE>   7

Trustees shall not, on behalf of the Trust, buy any securities (other than
Shares) from or sell any securities (other than Shares) to, or lend any assets
of the Trust to, any Trustee or officer of the Trust or any firm of which any
such Trustee or officer is a member acting as principal, or have any such
dealings with the Investment Adviser, Distributor, Administrator or Transfer
Agent or with any Interested Person of such Person; but the Trust may employ any
such Person, or firm or company in which such Person is an Interested Person, as
broker, legal counsel, registrar, transfer agent, dividend disbursing agent or
custodian upon customary terms.

         SECTION 3.12. TRUSTEES AND OFFICERS AS SHAREHOLDERS. Except as
hereinafter provided, no officer, Trustee or member of the Advisory Board of the
Trust, and no member, officer, director or trustee of the Investment Adviser or
of the Distributor and no Investment Adviser or Distributor of the Trust, shall
take long or short positions in the securities issued by the Trust.

         (1) The foregoing provision shall not prevent the Distributor from
purchasing from the Trust Shares if such purchases are limited (except for
reasonable allowances for clerical errors, delays and errors of transmission and
cancellation of orders) to purchases for the purpose of filling orders for
Shares received by the Distributor and provided that orders to purchase from the
Trust are entered with the Trust or the Custodian promptly upon receipt by the
Distributor of purchase orders for Shares, unless the Distributor is otherwise
instructed by its customer.

         (2) The foregoing provision shall not prevent the Distributor from
purchasing Shares as agent for the account of the Trust.

         (3) The foregoing provision shall not prevent the purchase from the
Trust or from the Distributor of Shares by any officer, Trustee or member of the
Advisory Board of the Trust or by any member, officer, director or trustee of
the Investment Adviser or of the Distributor at a price not lower than the net
asset value of the Shares at the moment of such purchase, provided that any such
sales are only to be made pursuant to a uniform offer described in the Trust's
current prospectus.

         (4) The foregoing provision shall not prevent the Investment Adviser,
the Distributor, or any of their officers, directors or trustees from purchasing
Shares prior to the effective date of the Registration Statement relating to the
Shares under the Securities Act of 1933, as amended.

         SECTION 3.13. LITIGATION. The Trustees shall have the power to engage
in and to prosecute, defend, compromise, abandon, or adjust, by arbitration, or
otherwise, any actions, suits, proceedings, disputes, claims, and demands
relating to the Trust, and out of the assets of the Trust to pay or to satisfy
any debts, claims or expenses incurred in connection therewith, including those
of litigation, and such power shall include without limitation the power of the
Trustees or any appropriate committee thereof, in the exercise of their or its
good faith business judgment, to dismiss any action, suit, proceeding, dispute,
claim, or demand, derivative or otherwise, brought by any person, including a
Shareholder in its own name or the name of the Trust, whether or not the Trust
or any of the Trustees may be named individually therein or the subject matter
arises by reason of business for or on behalf of the Trust.

<PAGE>   8
                                   ARTICLE IV

                 INVESTMENT ADVISER, DISTRIBUTOR. ADMINISTRATOR
                               AND TRANSFER AGENT

         SECTION 4.1. INVESTMENT ADVISER. Subject to a Majority Shareholder
Vote, the Trustees may, in their discretion, from time to time enter into an
investment advisory or management contract whereby the other party to such
contract shall undertake to furnish the Trust such management, investment
advisory, statistical and research facilities and services, promotional
activities, and such other facilities and services, if any, as the Trustees
shall from time to time consider desirable and all upon such terms and
conditions as the Trustees may, in their discretion, determine. Notwithstanding
any provisions of the Declaration, the Trustees may authorize the Investment
Adviser (subject to such general or specific instructions as the Trustees may
from time to time adopt) to effect purchases, sales, loans or exchanges of
portfolio securities of the Trust on behalf of the Trustees or may authorize any
officer, employee or Trustee to effect such purchases, sales, loans or exchanges
pursuant to recommendations of the Investment Adviser (and all without further
action by the Trustees). Any such purchases, sales, loans and exchanges shall be
deemed to have been authorized by all of the Trustees.

         SECTION 4.2. DISTRIBUTOR. The Trustees may, in their discretion, from
time to time enter into a contract, providing for the sale of Shares of the
Trust at the net asset value per Share (as described in Article VIII hereof) ,
whereby the Trust may either agree to sell the Shares to the other party to the
contract or appoint such other party its sales agent for such Shares. In either
case, the contract shall be on such terms and conditions as the Trustees may in
their discretion determine not inconsistent with the provisions of this Article
IV or the Bylaws; and such contract may also provide for the repurchase or sale
of Shares of the Trust by such other party as principal or as agent of the Trust
and may provide that such other party may enter into selected dealer agreements
with registered securities dealers to further the purpose of the distribution or
repurchase of the Shares.

         SECTION 4.3. ADMINISTRATOR. The trustees may, in their discretion, from
time to time enter into an administrative services agreement whereby the other
party to such contract shall provide facilities, equipment, and personnel to
carry out certain administrative services for the operation of the business and
affairs of the Trust and each of its separate series. The contract shall have
such terms and conditions as the Trustees may, in their discretion, determine
not inconsistent with the Declaration or the Bylaws. Such services may be
provided by one or more Persons.

         SECTION 4.4. TRANSFER AGENT. The Trustees may, in their discretion,
from time to time enter into a transfer agency and shareholder service contract
whereby the other party to such contract shall undertake to furnish transfer
agency and shareholder services to the Trust. The contract shall have such terms
and conditions as the Trustees may, in their discretion, determine not
inconsistent with the Declaration or the Bylaws. Such services may be provided
by one or more Persons.

         SECTION 4.5. PARTIES TO CONTRACT. Any contract of the character
described in Sections 4.1, 4.2, 4.3, and 4.4 of this Article IV or any Custodian
contract, as described in the Bylaws, may be entered into with any Person,
although one or more of the Trustees or officers of the Trust may be an officer,
director, trustee, shareholder, or member of such other party to the contract,
and no such contract shall be invalidated or rendered voidable by reason of the
existence of any such relationship; nor shall any Person holding such
relationship be liable merely by reason of such relationship for any loss or
expense to the Trust under or by reason of said contract or accountable for any
profit realized directly or indirectly therefrom, provided that the contract,
when entered into, was not
<PAGE>   9

inconsistent with the provisions of this Article IV or the Bylaws. The same
Person may be the other party to contracts entered into pursuant to Sections
4.1, 4.2, 4.3 and 4.4 above or Custodian contracts, and any individual may be
financially interested or otherwise affiliated with Persons who are parties to
any or all of the contracts mentioned in this Section 4.5.

                                    ARTICLE V

                    LIMITATIONS OF LIABILITY OF SHAREHOLDERS
                               TRUSTEES AND OTHERS

         SECTION 5.1. NO PERSONAL LIABILITY OF SHAREHOLDERS, TRUSTEES, ETC. No
Shareholder as such shall be subject to any personal liability whatsoever to any
Person in connection with Trust Property or the acts, obligations or affairs of
the Trust. No Trustee, officer, employee or agent of the Trust shall be subject
to any personal liability whatsoever to any Person, other than the Trust or its
Shareholders, in connection with Trust Property or the affairs of the Trust,
save only that arising from bad faith, willful misfeasance, gross negligence or
reckless disregard for his duty to, such Person; and all such Persons shall look
solely to the Trust Property for satisfaction of claims of any nature arising in
connection with the affairs of the Trust. If any shareholder, Trustee, officer,
employee or agent, as such, of the Trust is made a party to any suit or
proceeding to enforce any such liability, he shall not, on account thereof, be
held to any personal liability. The Trust shall indemnify and hold each
Shareholder harmless from and against all claims and liabilities to which such
Shareholder may become subject by reason of his being or having been a
Shareholder, and shall reimburse such Shareholder for all legal and other
expenses reasonable incurred by him in connection with any such claim or
liability. The rights accruing to a Shareholder under this Section 5.1 shall not
exclude any other right to which such Shareholder may be lawfully entitled, nor
shall anything herein contained restrict the right of the Trust to indemnify or
reimburse a Shareholder in any appropriate situation even though not
specifically provided herein.

         SECTION 5.2. NON-LIABILITY OF TRUSTEES, ETC. No Trustee, officer,
employee or agent of the Trust shall be liable to the Trust, its Shareholders,
or to any Shareholder, Trustee, officer, employee or agent thereof for any
action or failure to act (including without limitation the failure to compel in
any way any former or acting Trustee to redress any breach of trust) except for
his own bad faith, willful misfeasance, gross negligence or reckless disregard
of his duties.

         SECTION 5.3.  MANDATORY INDEMNIFICATION.
(a) Subject to the exceptions and limitations contained in paragraph (b) below:

         (i) Every person who is, or has been a Trustee or officer of the Trust
shall be indemnified by the Trust against all liability and against all expenses
reasonably incurred or paid by him in connection with any claim, action, suit or
proceeding in which he becomes involved as a party or otherwise by virtue of his
being or having been a Trustee or officer and against amounts paid or incurred
by him in the settlement thereof.

         (ii) The words "claim", "action", "suit" or "proceeding" shall apply to
all claims, actions, suits or proceedings (civil, criminal or other, including
appeals), actual or threatened; and the words "liability" and "expenses" shall
include, without limitation, attorneys' fees, costs, judgments, amounts paid in
settlement, fines, penalties and other liabilities.

(b) No indemnification shall be provided hereunder to a Trustee or officer:


<PAGE>   10

                  (i) against any liability to the Trust or the Shareholders by
reason of a final adjudication by the court or other body before which the
proceeding was brought that he engaged in willful misfeasance, bad faith, gross
negligence or reckless disregard of the duties involved in the conduct of his
office;

                  (ii) with respect to any matter as to which he shall have been
finally adjudicated not to have acted in good faith in the reasonable belief
that his action was in the best interest of the Trust;

                  (iii) in the event of a settlement or other disposition not
involving a final adjudication as provided in paragraphs (b) (i) or (b)(ii)
resulting in a payment by a Trustee or officer, unless there has been either a
determination that such Trustee or officer did not engage in willful
misfeasance, bad faith, gross negligence or reckless disregard of the duties
involved in the conduct of his office by the court or other body approving the
settlement or other disposition or a reasonable determination, based upon a
review of readily available facts (as opposed to a full trial-type inquiry) that
he did not engage in such conduct:

                           (A) by vote  of a  majority of the Disinterested
Trustees acting on the matter (provided that a majority of the Disinterested
Trustees then in office act on the matter); or

                           (B) by written opinion of independent legal counsel.

(c) The rights of indemnification herein provided may be insured against by
policies maintained by the Trust, shall be severable, shall not affect any other
rights to which any Trustee or officer may now or hereafter be entitled, shall
continue as to a Person who has ceased to be such Trustee or officer and shall
inure to the benefit of the heirs, executors and administrators of such Person.
Nothing contained herein shall affect any rights to indemnification to which
personnel other than Trustees and officers may be entitled by contract or
otherwise under law.

(d) Expenses of preparation and presentation of a defense to any claim, action,
suit or proceeding of the character described in paragraph (a) of this Section
5.3 shall be advanced by the Trust prior to final disposition thereof upon
receipt of an undertaking by or an behalf of the recipient to repay such amount
if it is ultimately determined that he is not entitled to indemnification under
this Section 5.3, provided that either:

         (i) such undertaking is secured by a surety bond or some other
appropriate security or the Trust shall be insured against losses arising out of
any such advances; or

         (ii) a majority of the Disinterested Trustees acting on the matter
(provided that a majority of the Disinterested Trustees then in office act on
the matter) or an independent legal counsel in a written opinion, shall
determine, based upon a review of readily available facts (as opposed to a full
trial-type inquiry) , that there is reason to believe that the recipient
ultimately will be found entitled to indemnification.

         As used in this Section 5.3, a "Disinterested Trustee" is one (i) who
is not an "Interested Person" of the Trust (including anyone who has been
exempted from being an "Interested Person" by any rule, regulation or order of
the Commission) , and (ii) against whom none of such actions, suits or other
proceedings or another action, suit or other proceeding on the same similar
grounds is then or had been pending.
<PAGE>   11

         Agents and employees of the Trust who are not Trustees or officers of
the Trust may be indemnified under the same standards and procedures set forth
in this Section 5.3., in the discretion of the Board.

         SECTION 5.4. NO BOND REQUIRED OF TRUSTEES. No Trustee shall be
obligated to give any bond or other security for the performance of any of his
duties hereunder.

         SECTION 5.5. NO DUTY OF INVESTIGATION; NOTICE IN TRUST INSTRUMENTS.
ETC. No purchaser, lender, Transfer Agent or other Person dealing with the
Trustees or any officer, employee or agent of the Trust shall be bound to make
any inquiry concerning the validity of any transaction purporting to be made by
the Trustees or by said officer, employee or agent or be liable for the
application of money or property paid, loaned, or delivered to or on the order
of the Trustees or of said officer, employee or agent. Every obligation,
contract, instrument, certificate, Share, other security of the Trust or
undertaking, and every other act or thing whatsoever executed in connection with
the Trust shall be conclusively presumed to have been executed or done by the
executors thereof only in their capacity as Trustees under the Declaration or in
their capacity as officers, employees or agents of the Trust. Every written
obligation, contract, instrument, certificate, Share, other security of the
Trust or undertaking made or issued by the Trustees shall recite that the same
is executed or made by them not individually, but as Trustees under the
Declaration, and that the obligations of any such instrument are not binding
upon any of the Trustees or Shareholders, individually, but bind only the Trust
estate, and may contain any further recital which they or he may deem
appropriate, but the omission of such recital shall not operate to bind the
Trustees individually. The Trustees shall at all times maintain insurance for
the protection of the Trust Property, its Shareholders, Trustees, officers,
employees and agents in such amount as the Trustees shall deem adequate to cover
possible tort liability, and such other insurance as the Trustees in their sole
judgment shall deem advisable.

         SECTION 5.6. RELIANCE ON EXPERTS, ETC. Each Trustee and officer or
employee of the Trust shall, in the performance of his duties, be fully and
completely justified and protected with regard to any act or any failure to act
resulting from reliance in good faith upon the books of account or other records
of the Trust, upon an opinion of counsel, or upon reports made to the Trust by
any of its officers or employees or by the Investment Adviser, the Distributor,
the Administrator, Transfer Agent, selected dealers, accountants, appraisers or
other experts or consultants selected with reasonable care by the Trustees,
officers or employees of the Trust, regardless of whether such counsel or expert
may also be a Trustee.

                                   ARTICLE VI

                          SHARES OF BENEFICIAL INTEREST

         SECTION 6.1. BENEFICIAL INTEREST. The interest of the beneficiaries
hereunder shall be divided into transferable shares of beneficial interest,
without par value, of the following classes or series, or such others as may be
authorized by the Trustees pursuant to Section 6.9:

         One Group(R) Investment Trust

- -        One Group Investment Trust Government Bond Portfolio

- -        One Group Investment Trust Balanced Portfolio

- -        One Group Investment Trust Mid Cap Growth Portfolio

- -        One Group Investment Trust Large Cap Growth Portfolio
<PAGE>   12

- -        One Group Investment Trust Equity Index Portfolio

- -        One Group Investment Trust Bond Portfolio

- -        One Group Investment Trust Diversified Equity Portfolio

- -        One Group Investment Trust Diversified Mid Cap Portfolio

- -        One Group Investment Trust Mid Cap Value Portfolio

The number of shares of beneficial interest authorized hereunder is unlimited.
All Shares issued hereunder including, without limitation, Shares issued in
connection with a dividend in Shares or a split of Shares, shall be fully paid
and non-assessable.

         SECTION 6.2. RIGHTS OF SHAREHOLDERS. The ownership of the Trust
Property of every description and the right to conduct any business hereinbefore
described are vested exclusively in the Trustees, and the Shareholders shall
have no interest therein other than the beneficial interest conferred by their
Shares, and they shall have no right to call for any partition or division of
any property, profits, rights or interests of the Trust nor can they be called
upon to assume any losses of the Trust or suffer an assessment of any kind by
virtue of their ownership of Shares. The Shares shall be personal property
giving only the rights in the Declaration specifically set forth. The Shares
shall not entitle the holder to preference, preemptive, appraisal, conversion or
exchange rights, except as the Trustees may determine with respect to any series
of Shares.

         SECTION 6.3. TRUST ONLY. It is the intention of the Trustees to create
only the relationship of Trustee and beneficiary between the Trustees and each
Shareholder from time to time. It is not the intention of the Trustees to create
a general partnership, limited partnership, joint stock association,
corporation, bailment or any form of legal relationship other than a Trust.
Nothing in the Declaration shall be construed to make the Shareholders, either
by themselves or with the Trustees, partners or members of a joint stock
association.

         SECTION 6.4. ISSUANCE OR SHARES. The Trustees, in their discretion,
may, from time to time without vote of the shareholders, issue Shares, in
addition to the then issued and outstanding Shares and Shares held in the
treasury, to such party or parties and for such amount and type of
consideration, including cash or property, at such time or times (including,
without limitation, each business day in accordance with the determination of
net asset value per Share as set forth in Section 8.3 hereof), and on such terms
as the Trustees may deem best, and may in such manner acquire other assets
(including the acquisition of assets subject to, and in connection with the
assumption of liabilities) and businesses. In connection with any issuance of
Shares, the Trustees may issue fractional Shares. The Trustees may from time to
time divide or combine the Shares into a greater or lesser number without
thereby changing the proportionate beneficial interests in the Trust.
Contributions to the Trust may be accepted for, and Shares shall be redeemed as,
whole shares and/or 1/1,000ths of a Share or integral multiples thereof.

         SECTION 6.5. REGISTER OF SHARES; SHARE CERTIFICATES. A register will be
kept at the principal office of the Trust or at an office of the Transfer Agent
which shall contain the names and addresses of the Shareholders and the number
of Shares held by them respectively and a record of all transfers thereof. Such
register shall be conclusive as to who are the holders of the Shares and who
shall be entitled to receive dividends or distributions or otherwise to exercise
or enjoy the rights of Shareholders. No Shareholder shall be entitled to receive
payment of any dividend or distribution, nor to have notice given to him as
herein or in the Bylaws provided, until he has given his address to the Transfer
Agent or such other officer or agent of the Trustees as shall keep the said
register for entry thereon. It is not contemplated that certificates will be
issued for the Shares; however, the


<PAGE>   13

Trustees, in their discretion, may authorize the issuance of Share certificates
and promulgate appropriate rules and regulations as to their use.

         SECTION 6.6. TRANSFER OF SHARES. Shares shall be transferable on the
records of the Trust only by the record holder thereof or by his agent thereunto
duly authorized in writing, upon delivery to the Trustees or the Transfer Agent
of a duly executed instrument of transfer, together with such evidence of the
genuineness of each such execution and authorization and of other matters as may
reasonably be required. Upon such delivery, the transfer shall be recorded on
the register of the Trust. Until such record is made, the Shareholder of record
shall be deemed to be the holder of such Shares for all purposes hereunder and
neither the Trustees nor any Transfer Agent or registrar nor any officer,
employee or agent of the Trust shall be affected by any notice of the proposed
transfer.

         Any person becoming entitled to any Shares in consequence of the death,
bankruptcy, or incompetence of any Shareholder, or otherwise by operation of
law, shall be recorded on the register of Shares as the holder of such Shares
upon production of the proper evidence thereof to the Trustees or the Transfer
Agent, but until such record is made, the Shareholder of record shall be deemed
to be the holder of such Shares for all purposes hereunder and neither the
Trustees nor any Transfer Agent or registrar nor any officer or agent of the
Trust shall be affected by any notice of such death, bankruptcy or incompetence,
or other operation of law.

         SECTION 6.7. NOTICES. Any and all notices to which any Shareholder may
be entitled and any and all communications shall be deemed duly served or given
if mailed, postage prepaid, addressed to any Shareholder of record at his last
known address as recorded on the register of the Trust.

         SECTION 6.8. VOTING POWERS. The Shareholders shall have power to vote
only (i) for the election of Trustees as provided in Section 2.2 hereof or as
required by Section 16 (a) of the 1940 Act; (ii) with respect to any investment
advisory or management contract as provided in section 4.1; (iii) with respect
to termination of the Trust as provided in Section 9.2; (iv) with respect to any
amendment of the Declaration to the extent and as provided in Section 9.3; (v)
with respect to any merger, consolidation or sale of assets as provided in
Section 9.4; (vi) with respect to incorporation of the Trust to the extent and
as provided in Section 9.5; (vii) to the same extent as the stockholders of a
Massachusetts business corporation as to whether or not a court action,
proceeding or claim should or should not be brought or maintained derivatively
or as a class action on behalf of the Trust or the Shareholders; and (viii) with
respect to such additional matters relating to the Trust as may be required by
the Declaration, the Bylaws, the 1940 Act or any registration of the Trust with
the Commission (or any successor agency) or any state, or as the Trustees may
consider necessary or desirable. Each whole Share shall be entitled to one vote
as to any matter on which it is entitled to vote and each fractional Share shall
be entitled to proportionate fractional vote, except that Shares held in the
treasury of the Trust shall not be voted and that the Trustees may, in
conjunction with the establishment of any series of Shares, establish conditions
under which the several series shall have separate voting rights or no voting
rights. There shall be no cumulative voting in the election of Trustees. Until
Shares are issued, the Trustees may exercise all rights of Shareholders and may
take any action required by law, the Declaration or the Bylaws to be taken by
Shareholders. The Bylaws may include further provisions for Shareholders' votes
and meetings and related matters.

         SECTION 6.9. SERIES DESIGNATION. The Trustees, in their discretion, may
authorize the division of Shares into additional series, and the different
series shall be established and designated, and the variations in the relative
rights and preferences as between the different series shall be fixed and
determined by the Trustees, provided, that all Shares shall be identical except
that there may be variations so fixed and determined between different series as
to investment objective, purchase


<PAGE>   14

price, right of redemption and the price, terms and manner of redemption,
special and relative rights as to dividends and on liquidation, conversion
rights, and conditions under which the several series shall have separate voting
rights. All references to Shares in the Declaration shall be deemed to be shares
of any or all series as the context may require.

         If the Trustees shall divide the shares of the Trust into two or more
series, the following provisions shall be applicable:

         (a) the number of authorized shares and the number of shares of each
series that may be issued shall be unlimited. The Trustees may classify or
reclassify any unissued shares or any shares previously issued and reacquired of
any series into one or more series that may be established and designated from
time to time. The Trustees may hold as treasury shares (of the same or some
other series), reissue for such consideration and on such terms as they may
determine, or cancel any shares of any series reacquired by the Trust at their
discretion from time to time.

         (b) The power of the Trustees to invest and reinvest the Trust Property
shall be governed by Section 3.2 of this Declaration with respect to the five
existing series which represents the interests in the assets of the Trust
immediately prior to the establishment of any additional series and the power of
the Trustees to invest and reinvest assets applicable to any such additional
series shall be as set forth in the instrument of the Trustees establishing such
series which is hereinafter described.

         (c) All consideration received by the Trust for the issue or sale of
shares of a particular series, together with all assets in which such
consideration is invested or reinvested, all income, earnings, profits and
proceeds thereof, including any proceeds derived from the sale, exchange or
liquidation of such assets, and any funds or payments derived from any
reinvestment of such proceeds in whatever form the same may be, shall
irrevocably belong to that series for all purposes, subject only to the rights
of creditors, and shall be so recorded upon the books of account of the Trust.
In the event that there are any assets, income, earnings, profits, and proceeds
thereof, funds, or payments which are not readily identifiable as belonging to
any particular series, the Trustees shall allocate them among any one or more of
the series established and designated from time to time in such manner and on
such basis as they, in their sole discretion, deem fair and equitable. Each such
allocation by the Trustees shall be conclusive and binding upon the shareholders
of all series for all purposes.

         (d) The assets belonging to each particular series shall be charged
with the liabilities of the Trust in respect of that series and all expenses,
costs, charges and reserves attributable to that series, and any general
liabilities, expenses, costs, charges or reserves of the Trust which are not
readily identifiable as belonging to any particular series shall be allocated
and charged by the Trustees to and among any one or more of the series
established and designated from time to time in such manner and on such basis as
the Trustees, in their sole discretion, deem fair and equitable. Each allocation
of liabilities, expenses, costs, charges and reserves by the Trustees shall be
conclusive and binding upon the holders of all series for all purposes. The
Trustees shall have full discretion, to the extent not inconsistent with the
1940 Act, to determine which items shall be treated as income and which items as
capital; and each such determination and allocation shall be conclusive and
binding upon the shareholders.

         (e) The power of the Trustees to pay dividends and make distributions
shall be governed by Section 8.2 of this Trust with respect to the nine existing
series which represents the interests in the assets of the Trust immediately
prior to the establishment of any additional series. With respect


<PAGE>   15

to any other series, dividends and distributions on shares of a particular
series may be paid with such frequency as the Trustees may determine, which may
be daily or otherwise, pursuant to a standing resolution or resolutions adopted
only once or with such frequency as the Trustees may determine, to the holders
of shares of that series, from such of the income and capital gains, accrued or
realized, from the assets belonging to that series, as the Trustees may
determine, after providing for actual and accrued liabilities belonging to that
series. All dividends and distributions on shares of a particular series shall
be distributed pro rata to the holders of that series in proportion to the
number of shares of that series held by all such holders at the date and time of
record established for the payment of such dividends or distributions.

         The establishment and designation of any series of shares shall be
effective upon the execution by a majority of the then Trustees of an instrument
setting forth such establishment and designation and the relative rights and
preferences of such series, or as otherwise provided in such instrument. At any
time that there are no shares outstanding of any particular series previously
established and designated, the Trustees may, by an instrument executed by a
majority of their number, abolish that series and the establishment and
designation thereof. Each instrument referred to in this paragraph shall have
the status of an amendment to this Declaration.

                                   ARTICLE VII

                                   REDEMPTIONS

         SECTION 7.1. REDEMPTIONS. In case any Shareholder at any time desires
to dispose of his Shares, he may deposit his certificate or certificates
therefor, duly endorsed in blank or accompanied by an instrument of transfer
executed in blank, or if the Shareholder has no certificates, a written request
or other such form of request as the Trustees may from time to time authorize,
at the office of the Transfer Agent or at the office of any bank or trust
company, either in or outside of Massachusetts, which is a member of the Federal
Reserve System and which the said Transfer Agent has designated in writing for
that purpose, together with an irrevocable offer in writing in a form acceptable
to the Trustees to sell the Shares represented thereby to the Trust at the net
asset value thereof per Share, determined as provided in Section 8.1 hereof,
next after such deposit. Payment for said Shares shall be made to the
Shareholder within seven (7) days after the date on which the deposit is made,
unless (i) the date of payment is postponed pursuant to Section 7.2 hereof, or
(ii) the receipt, or verification of receipt, of the purchase price for the
Shares to be redeemed is delayed, in either of which event payment may be
delayed beyond seven (7) days.

         SECTION 7.2. SUSPENSION OF RIGHT OF REDEMPTION. The Trust may declare a
suspension of the right of redemption or postpone the date of payment or
redemption for the whole or any part of any period (i) during which the New York
Stock Exchange is closed other than customary weekend and holiday closings; (ii)
during which trading on the New York Stock Exchange is restricted; (iii) during
which an emergency exists as a result of which disposal by the Trust of
securities owned by it is not reasonably practicable or it is not reasonably
practicable for the Trust fairly to determine the value of its net assets; or
(iv) during any other period when the Commission may for the protection of
security holders of the Trust by order permit suspension of the right of
redemption or postponement of the date of payment or redemption; provided that
applicable rules and regulations of the Commission shall govern as to whether
the conditions prescribed in (ii) , (iii) , or (iv) exist. Such suspension shall
take effect at such time as the Trust shall specify, but not later than the
close of business on the business day next following the declaration of
suspension, and thereafter there shall be no right of redemption until the Trust
shall declare the suspension at an end, except that the suspension shall
terminate in any event on the first day on which said stock exchange shall have
<PAGE>   16

reopened or the period specified in (ii) or (iii) shall have expired (as to
which, in the absence of an official ruling by the Commission, the determination
of the Trust shall be conclusive). In the case of a suspension of the right of
redemption, a Shareholder may either withdraw his request for redemption or
receive payment based on the net asset value existing after the termination of
the suspension.

         SECTION 7.3. REDEMPTION OF SHARES: DISCLOSURE OF HOLDING. If the
Trustees shall, at any time and in good faith, be of the opinion that direct or
indirect ownership of Shares or other securities of the Trust has or may become
concentrated in any Person to an extent which would disqualify the Trust as a
regulated investment company under the Internal Revenue Code, then the Trustees
shall have the power by lot or other means deemed equitable by them (i) to call
for redemption by any such Person of a number, or principal amount, of Shares or
other securities of the Trust sufficient to maintain or bring the direct or
indirect ownership of Shares or other securities of the Trust into conformity
with the requirements for such qualification; and (ii) to refuse to transfer or
issue Shares or other securities of the Trust to any Person whose acquisition of
the Shares or other securities of the Trust in question would result in such
disqualification. The redemption shall be effected at the redemption price and
in the manner provided in Section 7.1.

         The holders of Shares or other securities of the Trust shall upon
demand disclose to the Trustees in writing such information with respect to
direct and indirect ownership of Shares or other securities of the Trust as the
Trustees deem necessary to comply with the provisions of the Internal Revenue
Code, or to comply with the requirements of any other authority.

         SECTION 7.4. REDEMPTIONS OF ACCOUNTS OF LESS THAN $500. The Trustees
shall have the power at any time to redeem Shares of any Shareholder at a
redemption price determined in accordance with Section 7.1, if at such time the
aggregate net asset value of the Shares in such Shareholder's account is less
than $500. A shareholder will be notified that the value of his account is less
than $500 and allowed thirty (30) days to make an additional investment before
redemption is processed.

                                  ARTICLE VIII

                        DETERMINATION OF NET ASSET VALUE
                          NET INCOME AND DISTRIBUTIONS

         SECTION 8.1. NET ASSET VALUE. For all purposes under this Declaration
of Trust, the net asset value shall be determined by the Trustees as soon as
possible after the close of the New York Stock Exchange on each business day
upon which such Exchange is open, such net asset value to become effective one
hour after such close and remain in effect until the next determination of such
net asset value becomes effective; provided, however, that the Trustees may in
their discretion make a more frequent determination of the net asset value which
shall become effective one hour after the time as of which such net asset value
is determined.

         Such net asset value shall be determined in the following manner:


         (a) All securities listed on any recognized Exchange shall be appraised
at the quoted closing sale prices and in the event that there was no sale of any
particular security on such day the quoted closing bid price thereof shall be
used, or if any such security was not quoted on such day or if the determination
of the net asset value is being made as of a time other than the close of the

<PAGE>   17

New York Stock Exchange, then the same shall be appraised in such manner as
shall be deemed by the Trustees to reflect its fair value.

         All other securities and assets of the Trust, including cash, prepaid
and accrued items, and dividends receivable, shall be appraised in such manner
as shall be deemed by the Trustees to reflect their fair value.

         (b) From the total value of the Trust Property as so determined shall
be deducted the liabilities of the Trust, including reserves for taxes, and such
expenses and liabilities of the Trust as may be determined by the Trustees to be
accrued liabilities.

         (c) The resulting amount shall represent the net asset value of the
Trust Property. The net asset value of a share of any class shall be the result
of the division of the net asset value of the underlying assets of that class by
the number of shares of that class outstanding. The net asset value of the Trust
Property and shares as so determined shall be final and conclusive.

         SECTION 8.2. DISTRIBUTIONS TO SHAREHOLDERS. The Trustees shall from
time to time distribute ratably among the Shareholders such proportion of the
net profits, surplus (including paid-in surplus), capital, or assets held by the
Trustees as they may deem proper. Such distribution may be made in cash or
property (including without limitation any type of obligations of the Trust or
any assets thereof) , and the Trustees may distribute ratably among the
Shareholders additional Shares issuable hereunder in such manner, at such times,
and on such terms as the Trustees may deem proper. Such distributions may be
among the Shareholders of record at the time of declaring a distribution or
among the Shareholders of record at such later date as the Trustees shall
determine. The Trustees may always retain from the net profits such amount as
they may deem necessary to pay the debts or expenses of the Trust or to meet
obligations of the Trust, or as they may deem desirable to use in the conduct of
its affairs or to retain for future requirements or extensions of the business.
The Trustees may adopt and offer to Shareholders such dividend reinvestment
plans, cash dividend payout plans or related plans as the Trustees shall deem
appropriate.

         Inasmuch as the computation of net income and gains for Federal Income
Tax purposes may vary from the computation thereof on the books, the above
provisions shall be interpreted to give the Trustees the power in their
discretion to distribute for any fiscal year as ordinary dividends and as
capital gains distributions, respectively, additional amounts sufficient to
enable the Trust to avoid or reduce liability for taxes.

         SECTION 8.3. DETERMINATION OF NET INCOME. The term "net income" with
respect to a class of shares is hereby defined as the gross earnings of the
class, excluding gains on sales of securities and stock dividends received, less
the expenses of the Trust allocated to the class by the Trustees in such manner
as they determine to be fair and equitable or otherwise chargeable to the class.
The expenses shall include (1) taxes attributable to the income of the Trust
exclusive of gains on sales, and (2) other charges properly deductible for the
maintenance and administration of the Trust; but there shall not be deducted
from gross or net income any losses on securities, realized or unrealized. The
Trustees shall otherwise have full discretion to determine which items shall be
treated as income and which items as capital and their determination shall be
binding upon the Beneficiaries.

         SECTION 8.4. POWER TO MODIFY FOREGOING PROCEDURES. Notwithstanding any
of the foregoing provisions of this Article VIII, the Trustees may prescribe, in
their absolute discretion, such other bases and times for determining the per
Share net asset value of the Shares or net income, or the declaration and
payment of dividends and distributions as they may deem necessary or


<PAGE>   18

desirable. Without limiting the generality of the foregoing, the Trustees may
establish additional series of Shares in accordance with Section 6.9.

                                   ARTICLE IX

                         DURATION; TERMINATION OF TRUST
                            AMENDMENT; MERGERS; ETC.

         SECTION 9.1. DURATION. The Trust shall continue without limitation of
time but subject to the provisions of this Article IX.

         SECTION 9.2.  TERMINATION OF TRUST.  (a) The Trust must be terminated:

         (i) by the affirmative vote of the holders of not less than two-thirds
of the Shares outstanding and entitled to vote at any meeting of Shareholders,
or (ii) by an instrument in writing, without a meeting, signed by a majority of
the Trustees and consented to by the holders of not less than two-thirds of such
Shares, or by such other vote as may be established by the Trustees with respect
to any series of Shares, or (iii) by the Trustees by written notice to the
Shareholders.

         Upon the termination of the Trust:

         (i) The Trust shall carry on no business except for the purpose of
winding up its affairs.

         (ii) The Trustees shall proceed to wind up the affairs of the Trust and
all of the powers of the Trustees under this Declaration shall continue until
the affairs of the Trust shall have been wound up, including the power to
fulfill or discharge the contracts of the Trust, collect its assets, sell,
convey, assign, exchange, transfer or otherwise dispose of all or any part of
the remaining Trust Property to one or more persons at public or private sale
for consideration which may consist in whole or in part of cash, securities or
other property of any kind, discharge or pay its liabilities, and to do all
other acts appropriate to liquidate its business; provided that any sale,
conveyance, assignment, exchange, transfer or other disposition of all or
substantially all the Trust Property shall require Shareholder approval in
accordance with Section 9.4 hereof.

         (iii) After paying or adequately providing for the payment of all
liabilities, and upon receipt of such releases, indemnities and refunding
agreements, as they deem necessary for their protection, the Trustees may
distribute the remaining Trust Property, in cash or in kind or partly each,
among the Shareholders according to their respective rights.

         (iv) After termination of the Trust and distribution to the
Shareholders as herein provided, a majority of the Trustees shall execute and
lodge among the records of the Trust an instrument in writing setting forth the
fact of such termination, and the Trustees shall thereupon be discharged from
all further liabilities and duties hereunder, and the rights and interests of
all Shareholders shall thereupon cease.

         SECTION 9.3. AMENDMENT PROCEDURE. (a) This Declaration may be amended
by a Majority Shareholder Vote or by any instrument in writing, without a
meeting, signed by a majority of the Trustees and consented to by the holders of
not less than a majority of the Shares outstanding and entitled to vote. The
Trustees may also amend this Declaration without the vote or consent of
Shareholders to designate series in accordance with Section 6.9 hereof, to
change the name of the Trust, to supply any omission, to cure, correct or
supplement any ambiguous, defective or


<PAGE>   19

inconsistent provision hereof, or if they deem it necessary to conform this
Declaration to the requirements of applicable federal laws or regulations or the
requirements of the regulated investment company provisions of the Internal
Revenue Code, but the Trustees shall not be liable for failing to do so.

         (b) No amendment may be made under this Section 9.3 which would change
any rights with respect to any Shares of the Trust by reducing the amount
payable thereon upon liquidation of the Trust or by diminishing or eliminating
any voting rights pertaining thereto, except with the vote or consent of the
holders of two-thirds of the Shares outstanding and entitled to vote, or by such
other vote as may be established by the Trustees with respect to any series of
Shares. Nothing contained in this Declaration shall permit the amendment of this
Declaration to impair the exemption from personal liability of the Shareholders,
Trustees, officers, employees and agents of the Trust or to permit assessments
upon Shareholders.

         (c) A certificate signed by a majority of the Trustees setting forth an
amendment and reciting that it was duly adopted by the Shareholders or by the
Trustees as aforesaid or a copy of the Declaration, as amended, and executed by
a majority of the Trustees, shall be conclusive evidence of such amendment when
lodged among the records of the Trust.

         SECTION 9.4. MERGER, CONSOLIDATION AND SALE OF ASSETS. The Trust may
merge or consolidate with any other corporation, association, trust or other
organization or may sell, lease or exchange all or substantially all of the
Trust Property, including its goodwill, upon such terms and conditions and for
such consideration when and as authorized at any meeting of Shareholders called
for the purpose by the affirmative vote of the holders of not less than
two-thirds of the Shares outstanding and entitled to vote, or by an instrument
or instruments in writing without a meeting, consented to by the holders of not
less than two-thirds of such Shares, or by such other vote as may be established
by the Trustees with respect to any series of Shares; provided, however, that,
if such merger, consolidation, sale, lease or exchange is recommended by the
Trustees, the vote or written consent of the holders of a majority of Shares
outstanding and entitled to vote, or by such other vote as may be established by
the Trustees with respect to any series of Shares, shall be sufficient
authorization; and any such merger, consolidation, sale, lease or exchange shall
be deemed for all purposes to have been accomplished under and pursuant to the
statutes of the Commonwealth of Massachusetts.

         SECTION 9.5. INCORPORATION. With the approval of the holders of a
majority of the Shares outstanding and entitled to vote, or by such other vote
as may be established by the Trustees with respect to any series of Shares, the
Trustees may cause to be organized or assist in organizing a corporation or
corporations under the laws of any jurisdiction or any other trust, partnership,
association or other organization to take over all of the Trust Property or to
carry on any business in which the Trust shall directly or indirectly have any
interest, and to sell, convey and transfer the Trust Property to any such
corporation, trust, association or organization in exchange for the shares or
securities thereof or otherwise, and to lend money to, subscribe for the shares
or securities of, and enter into any contracts with any such corporation, trust,
partnership, association or organization in which the Trust holds or is about to
acquire shares or any other interest. The Trustees may also cause a merger or
consolidation between the Trust or any successor thereto and any such
corporation, trust, partnership, association or other organization if and to the
extent permitted by law, as provided under the law then in effect. Nothing
contained herein shall be construed as requiring approval of Shareholders for
the Trustees to organize or assist in organizing one or more corporations,
trusts, partnerships, associations or other organizations and selling, conveying
or transferring a portion of the Trust Property to such organization or
entities.
<PAGE>   20

                                    ARTICLE X

                             REPORTS TO SHAREHOLDERS

         The Trustees shall at least semi-annually submit to the Shareholders a
written financial report of the transactions of the Trust, including financial
statements which shall at least annually be certified by independent public
accountants.

                                   ARTICLE XI

                                  MISCELLANEOUS

         SECTION 11.1. FILING. This Declaration and any amendment hereto shall
be filed in the office of the Secretary of the Commonwealth of Massachusetts and
in such other places as may be required under the laws of Massachusetts and may
also be filed or recorded in such other places as the Trustees deem appropriate.
Each amendment so filed shall be accompanied by a certificate signed and
acknowledged by a Trustee stating that such action was duly taken in a manner
provided herein, and unless such amendment or such certificate sets forth some
later time for the effectiveness of such amendment, such amendment shall be
effective upon its filing. A restated Declaration, integrating into a single
instrument all of the provisions of the Declaration which are then in effect and
operative, may be executed from time to time by a majority of the Trustees and
shall, upon filing with the Secretary of the Commonwealth of Massachusetts, be
conclusive evidence of all amendments contained herein and may thereafter be
referred to in lieu of the original Declaration and the various amendments
thereto.

         SECTION 11.2. RESIDENT AGENT. The name of the Trust's resident agent is
One Group(R) Investment Trust, c/o CT Corporation System, and its post office
address is 2 Oliver Street, Boston, Massachusetts 02109.

         SECTION 11.3. GOVERNING LAW. This Declaration is executed by the
Trustees and delivered with reference to the laws of the Commonwealth of
Massachusetts, and the rights of all parties and the validity and construction
of every provision hereof shall be subject to and construed according to the
laws of said State.

         SECTION 11.4. COUNTERPARTS. This Declaration may be simultaneously
executed in several counterparts, each of which shall be deemed to be an
original, and such counterparts, together, shall constitute one and the same
instrument, which shall sufficiently evidenced by any such original counterpart.

         SECTION 11.5. RELIANCE BY THIRD PARTIES. Any certificate executed by an
individual who, according to the records of the Trust appears to be a Trustee
hereunder, certifying to: (a) the number or identity of Trustees or
Shareholders, (b) the due authorization of the execution of any instrument or
writing, (c) the form of any vote passed at a meeting of Trustees or
Shareholders, (d) the fact that the number of Trustees or Shareholders present
at any meeting or executing any written instrument satisfies the requirements of
this Declaration, (e) the form of any Bylaws adopted by or the identity of any
officers elected by the Trustees, or (f) the existence of any fact or facts
which in any manner relate to the affairs of the Trust, shall be conclusive
evidence as to the matters so certified in favor of any Person dealing with the
Trustees and their successors.
<PAGE>   21
         SECTION 11.6.  PROVISIONS IN CONFLICT WITH LAW OR REGULATIONS.

         (a) The provisions of the Declaration are severable, and if the
Trustees shall determine, with the advice of counsel, that any of such
provisions is in conflict with the 1940 Act, the regulated investment company
provisions of the Internal Revenue Code or with other applicable laws and
regulations, the conflicting provisions shall be deemed never to have
constituted a part of the Declaration; provided, however, that such
determination shall not affect any of the remaining provisions of the
Declaration or render invalid or improper any action taken or omitted prior to
such determination.

         (b) If any provision of the Declaration shall be held invalid or
unenforceable in any jurisdiction, such invalidity or unenforceability shall
attach only to such provision in such jurisdiction and shall not in any manner
affect such provision in any other jurisdiction or any other provision of the
Declaration in any jurisdiction.

         SECTION 11.7. INDEX AND HEADING FOR REFERENCE ONLY. The Index and
heading preceding the text, articles and sections hereof have been inserted for
convenience and reference only and shall not be construed to affect the meaning,
construction, or effect of this Declaration.

IN WITNESS WHEREOF, the undersigned Trustees have hereunto set their hands this
17th day of February, 1999.

Address: Three Nationwide Plaza 26th Floor
         Columbus, Ohio 43215

                                        /s/ Peter C. Marshall
                                        -------------------------
                                        Peter C. Marshall
                                        Trustee

                                        /s/ Charles I. Post
                                        -------------------------
                                        Charles I. Post
                                        Trustee

                                        /s/ Frederick W. Ruebeck
                                        -------------------------
                                        Frederick W. Ruebeck
                                        Trustee

                                        /s/ Robert A. Oden, Jr.
                                        -------------------------
                                        Robert A. Oden, Jr.
                                        Trustee

                                        /s/ John F. Finn
                                        -------------------------
                                        John F. Finn
                                        Trustee

By: 
    -------------------------
    Alan G. Priest
    Attorney-in-Fact

<PAGE>   1










                                Exhibit 23(d)(1)

                    Amended and Restated Investment Advisory
               Agreement dated February 17, 1999 by and between
                         One Group Investment Trust and
                    Banc One Investment Advisors Corporation
<PAGE>   2
               AMENDED AND RESTATED INVESTMENT ADVISORY AGREEMENT



THIS AGREEMENT, made this 17th day of February, 1999 by and between One Group
Investment Trust, a Massachusetts business trust (hereinafter the "Trust"), and
Banc One Investment Advisors Corporation, an Ohio Corporation (the "Adviser").

                                   WITNESSETH:

WHEREAS, the Trust and the Adviser entered into an Investment Advisory Agreement
on June 1, 1994 and an Amended and Restated Investment Advisory Agreement on
February 18, 1998, May 20, 1998, November 19, 1998; and

WHEREAS, the parties desire to further amend and restate the Amended and
Restated Investment Advisory Agreement; and

WHEREAS, the Trust is a diversified, open-end, management investment company and
is or will be so registered under the Investment Company Act of 1940, as
amended, and has or will have registered shares of the series listed in Appendix
A hereto (collectively, the "Funds") under the Securities Act of 1933, as
amended;

WHEREAS, the Adviser is willing to provide investment advisory services to the
Funds on the terms and conditions hereinafter set forth;

NOW, THEREFORE, in consideration of the mutual covenants and agreements of the
parties hereto as herein set forth, the parties covenant and agree as follows:

1.   The Adviser undertakes to act as investment adviser of each Fund of the
     Trust and shall, subject to the supervision of the Trust's Board of
     Trustees, direct the investments of each Fund in accordance with the
     investment objective, policies and limitations as provided in the Trust's
     Prospectus, Statement of Additional Information or other governing
     instruments, as amended from time to time, the Investment Company Act of
     1940 and rules thereunder, as amended from time to time (the "1940 Act"),
     and such other limitations as the Trust may impose by notice in writing to
     the Adviser. The Adviser is authorized, in its discretion and without prior
     consultation with the Trust, to buy, sell, lend and otherwise trade in any
     stocks, bonds and other securities and investment instruments on behalf of
     each Fund. The investment policies and all other actions of each Fund are
     and shall at all times be subject to the control and direction of the
     Trust's Board of Trustees.

     The Adviser shall also furnish such reports, evaluations, information or
     analyses to the Trust as the Trust's Board of Trustees may request from
     time to time or as the Adviser may deem to be desirable. The Adviser shall
     make recommendations to the Trust's Board of Trustees with respect to Trust
     policies and shall carry out such policies as are adopted by the Trustees.
     In making investment recommendations for the Trust, the Adviser will not
     inquire or take into consideration whether an issuer 
<PAGE>   3
     of securities proposed for purchase or sale by the Trust is a customer of
     the Adviser or its parent or subsidiaries or affiliates and, the Adviser
     and its parent, subsidiaries, and affiliates will not inquire or take into
     consideration whether securities of such customers are held by the Trust.
     The Adviser shall, subject to review by the Board of Trustees, furnish such
     other services as the Adviser shall from time to time determine to be
     necessary or useful to perform its obligations under this Agreement.

     The Adviser shall place all orders for the purchase and sale of portfolio
     securities for each Fund's account with brokers or dealers selected by the
     Adviser, which may include brokers or dealers affiliated with the Adviser.
     The Adviser shall use its best efforts to seek to execute portfolio
     transactions at prices which are advantageous to each Fund and at
     commission rates which are reasonable in relation to the benefits received.
     In selecting brokers or dealers qualified to execute a particular
     transaction, brokers or dealers may be selected who also provide brokerage
     and research services (as those terms are defined in Section 28(e) of the
     Securities Exchange Act of 1934) to each Fund and/or the other accounts
     over which the Adviser or its affiliates exercise investment discretion.
     The Adviser is authorized to pay a broker or dealer who provides such
     brokerage and research services a commission for executing a portfolio
     transaction for each Fund which is in excess of the amount of commission
     another broker or dealer would have charged for effecting that transaction
     if the Adviser determines in good faith that such amount of commission is
     reasonable in relation to the value of the brokerage and research services
     provided by such broker or dealer. This determination may be viewed in
     terms of either that particular transaction or the overall responsibilities
     which the Adviser and its affiliates have with respect to accounts over
     which they exercise investment discretion. The Trustees of the Trust shall
     periodically review the commissions paid by each Fund to determine if the
     commissions paid over representative periods of time were reasonable in
     relation to the benefits to each Fund.

     The Adviser shall, in acting hereunder, be an independent contractor. The
     Adviser shall not be an agent of the Trust.

2.   The Adviser will be compensated on the following basis for the services and
     facilities to be furnished hereunder. The Adviser shall receive a
     management fee, payable monthly as soon as practicable after the last day
     of each month, computed at the annual rate of each Fund's average daily net
     assets, pursuant to the rates set forth in Appendix A hereto.

     If the total expenses for any one of the Funds in any fiscal year exceed
     expense limitations imposed by applicable state securities regulations, the
     Adviser and the Trust's administrator shall reimburse that Fund by the
     amount of such excess in proportion to their respective fees (after giving
     effect to any waiver of fees agreed to by the Adviser and Administrator).
<PAGE>   4
     In case of termination of this Agreement during any month, the fee for that
     month shall be reduced proportionately on the basis of the number of
     business days during which it is in effect, and the fee computed upon the
     average net assets for the business days it is so in effect for that month.

3.   It is understood that each Fund will pay all its expenses, which expenses
     payable by each Fund shall include, without limitation, (i) interest and
     taxes; (ii) brokerage commissions and other costs in connection with the
     purchase or sale of securities and other investment instruments; (iii) fees
     and expenses of the Trust's Trustees other than those who are "interested
     persons of the administrator, distributor, or the Adviser of the Trust;
     (iv) legal and audit expenses; (v) custodian, registrar and transfer agent
     fees and expenses; (vi) fees and expenses related to the registration and
     qualification of the Trust and each Fund's shares for distribution under
     state and federal securities laws; (vii) expenses of printing and mailing
     reports and notices and proxy material to beneficial shareholders of the
     Fund; (viii) all other expense incidental to holding meetings of the Fund's
     shareholders, including proxy solicitations therefor; (ix) insurance
     premiums for fidelity and other coverage; (x) association membership dues;
     and (xi) such non-recurring or extraordinary expenses as may arise,
     including those relating to actions, suits or proceedings to which the Fund
     is a party and the legal obligation which the Fund may have to indemnify
     the Trust's Trustees and officers with respect thereto.

4.   The Adviser shall not be liable for any error of judgment or mistake of law
     or for any loss arising out of any investment or for any act or omission in
     the execution and management of the Trust, except a loss resulting from a
     breach of fiduciary duty with respect to the receipt of compensation for
     services hereunder or a loss resulting from willful misfeasance, bad faith
     or gross negligence in the performance of its duties, or by reason of
     reckless disregard of its obligations and duties hereunder. As used in this
     paragraph 4, the term "Adviser" shall include directors, officers and
     employees of the Adviser as well as the corporation itself.

5.   The services of the Adviser to the Trust are not to be deemed to be
     exclusive, the Adviser being free to render services to others. It is
     understood that Trustees, officers, and shareholders of the Trust are or
     may be or become interested in the Adviser, as directors, officers,
     employees, or otherwise and that directors, officers and employees of the
     Adviser are or may become similarly interested in the Trust and that the
     Adviser may be or become interested in the Trust as shareholder and
     otherwise.

6.   (a)  This Agreement shall continue in force with respect to a Fund until
          May 31, 1996 and indefinitely thereafter, but only so long as the
          continuance after such date shall be specifically approved at least
          annually by vote of the Trustees of the Trust or by vote of a majority
          of the outstanding voting securities of such Fund.
<PAGE>   5
     (b)  This Agreement may be modified only by an instrument in writing signed
          by the parties hereto.

     (c)  In addition to the requirements of sub-paragraphs (a) and (b) of this
          paragraph 6, the terms of any continuance or modification of this
          Agreement must have been approved by the vote of a majority of those
          Trustees of the Trust who are not parties to the Agreement or
          interested persons of any such party, cast in person at a meeting
          called for the purpose of voting on such approval.

     (d)  Either party hereto may, at any time on sixty (60) days prior written
          notice to the other, terminate this Agreement, without payment of any
          penalty, by action of its Trustees or Board of Directors, as the case
          may be, or, with respect to a Fund, by vote of a majority of the
          outstanding voting securities of such Fund. This contract shall
          terminate automatically in the event of its assignment.

7.   The Adviser is hereby expressly put on notice of the limitation of
     shareholder liability as set forth in the Trust's Declaration of Trust and
     agrees that the obligations assumed by the Trust pursuant to this Agreement
     shall be limited in all cases to the Trust and its assets, and the Adviser
     shall not seek satisfaction of any such obligation from the shareholders or
     any shareholder of the Trust or any other funds of the Trust. In addition,
     the Adviser shall not seek satisfaction of any such obligations from any
     Trustee, officer, employee or agent of the Trust.

8.   The Adviser hereby represents to the Trust that it possesses the legal
     authority to perform the investment advisory services contemplated
     hereunder and described in the Trust's Prospectus(es) and Statement of
     Additional Information without violation of applicable statutes and
     regulations.

9.   The term "vote of a majority of the outstanding voting securities",
     "assignment" and "interested persons", when used herein, shall have the
     respective meanings specified in the 1940 Act, as now in effect or as
     hereafter amended, and subject to such orders as may be granted by the
     Securities and Exchange Commission.

10.  This Agreement shall be governed by the laws of the Commonwealth of
     Massachusetts; provided, however, that nothing herein shall be construed in
     a manner inconsistent with the Investment Company Act of 1940 or any rule
     or regulation promulgated by the Securities and Exchange Commission
     thereunder.
<PAGE>   6
IN WITNESS WHEREOF, the parties have caused this instrument to be signed in
their behalf by their respective officers thereunto duly authorized, all as of
the date written above.


                           ONE GROUP INVESTMENT TRUST


                           By:    /s/ James F. Laird, Jr.
                           Title: President and Treasurer



                           BANC ONE INVESTMENT ADVISORS
                           CORPORATION


                           By:    /s/ Mark A. Beeson
                           Title: Senior Managing Director
<PAGE>   7
                                   APPENDIX A


<TABLE>
<CAPTION>
                                                          FEE PAYABLE TO ADVISER (AS A PERCENTAGE
FUNDS OF THE TRUST                                        OF EACH FUND'S AVERAGE DAILY NET ASSETS)
- ------------------                                        ----------------------------------------
<S>                                                       <C>
One Group Investment Trust Government Bond Portfolio                       .45%
One Group Investment Trust Balanced Portfolio                              .70%
One Group Investment Trust Mid Cap Growth Portfolio                        .65%
One Group Investment Trust Large Cap Growth Portfolio                      .65%
One Group Investment Trust Equity Index Portfolio                          .30%
One Group Investment Trust Bond Portfolio                                  .60%
One Group Investment Trust Diversified Equity Portfolio                    .74%
One Group Investment Trust Diversified Mid Cap Portfolio                   .74%
One Group Investment Trust Mid Cap Value Portfolio                         .74%
</TABLE>


ONE GROUP INVESTMENT TRUST

BY:    /s/ James F. Laird, Jr.
TITLE: President and Treasurer


BANC ONE INVESTMENT ADVISORS
CORPORATION

BY:    /s/ Mark A. Beeson
TITLE: Senior Managing Director


DATED:  February 17, 1999


<PAGE>   1
                                Exhibit 23(h)(1)
     Amended and Restated Transfer and Dividend Disbursing Agent Agreement
   dated February 17, 1999 between One Group Investment Trust and Nationwide
                            Investors Services, Inc.

<PAGE>   2


                              AMENDED AND RESTATED

                TRANSFER AND DIVIDEND DISBURSING AGENT AGREEMENT

                                     BETWEEN

                          ONE GROUP(R) INVESTMENT TRUST

                                       AND

                       NATIONWIDE INVESTORS SERVICES, INC.

This Transfer and Dividend Disbursing Agent Agreement ("Agreement"), originally
made this 17th day of February, 1999, by and between One Group(R) Investment
Trust, a Massachusetts business trust, hereinafter called the ("Trust") and
Nationwide Investors Services, Inc., an Ohio corporation, hereinafter called the
("Agent").

                                   WITNESSETH:
         WHEREAS, the Trust and Agent entered into a Transfer and Dividend
Disbursing Agreement dated May 20, 1994 ("Original Agreement"), and an Amended
and Restated Transfer and Dividend Disbursing Agent Agreement on February 18,
1998, May 20, 1998, and November 19, 1998; and

         WHEREAS, the Trust is a diversified, open-end, management investment
company and is or will be so registered under the Investment Company Act of
1940, as amended, and has or will have registered shares of the series listed in
Appendix A hereto (the "Funds") under the Securities Act of 1933, as amended;

         WHEREAS, the Trust will sell shares of the Funds to the separate
accounts of life insurance companies ("Companies") fund the benefits of certain
variable annuity and variable life contracts ("Contracts"); and

         WHEREAS, the Trust desires to enter into a Transfer and Dividend
Disbursing Agent Agreement with Agent under which Agent will provide the
services as set forth in detail in this Agreement, and Agent is desirous of
providing such services upon the terms and conditions hereinafter provided.

         NOW, THEREFORE, in consideration of the mutual covenants and promises
herein contained, it is agreed as follows:

1.       The Agent shall act as Stock Transfer Agent and Dividend Disbursing
         Agent for the Trust with regard to the Funds and in these capacities
         shall, where required:

         a.       maintain the current name and address, issuance data, and
                  number of shares and fractional shares owned by the Companies;

         b.       deposit and process on a daily basis all investments made by
                  the Companies;

         c.       calculate and cause the reinvestment of any dividends and
                  capital gains, distributions;
<PAGE>   3

         d.       confirm to the Companies all purchases and redemptions made by
                  the Companies, in a form suitable to the Companies;

         e.       prepare proxies and proxy cards, and assist the Companies in
                  coordinating the mailing of such proxy materials to the
                  Contract owners, who are the beneficial owners of Trust
                  shares;

         f.       tabulate all proxies;

         g.       act as inspectors at the Trust's Shareholder Meetings;

         h.       provide comprehensive accounting controls and reconciliations
                  of all cash flow; and

         i.       respond to inquiries from the Companies.

         The Trust recognizes that the Companies will be performing many of the
         administrative services for which the Agent would otherwise be
         responsible, including, without limitation, services with respect to
         delivery or sending of Trust proxy material, periodic fund reports, tax
         reports, transaction statements, confirmations, and other information
         relating to the Trust.

2.       The Agent agrees to furnish the services provided for herein and shall
         at all times maintain a staff of trained personnel for the purpose of
         performing its obligations under the Agreement. The Agent shall not be
         liable for any error of judgment or mistake of law or for any loss
         suffered by the Trust in connection with the matters to which this
         Agreement relates, except a loss resulting from willful misfeasance,
         bad faith or negligence on its part in the performance of its duties or
         from reckless disregard by it of its obligations and duties under this
         Agreement. Anything herein to the contrary notwithstanding, the Trust
         hereby agrees that while Agent has sole responsibility for performance
         of its obligations under this Agreement, any or all duties of Agent may
         be performed from time to time by one or more third parties as Agent,
         in its discretion, shall select, provided that Trust shall be notified
         of all contracts between Agent and such third party or parties and
         provided copies thereof upon request.

3.       The Agent agrees that in all matters relating to the services to be
         performed by it hereunder, it will use its best efforts to act in
         conformity with the terms of the Declaration of Trust, Bylaws,
         Registration Statement and current Prospectus and Statement of
         Additional Information of the Trust. Each of the parties agree that in
         all matters relating to the performance of this Agreement, it will use
         its best efforts to conform to and comply with the requirements of the
         Investment Company Act of 1940 and all other applicable Federal, State
         or other laws and regulations. Nothing herein, contained shall be
         deemed to relieve or deprive the Board of Trustees of the Trust of its
         responsibility for and control of the conduct of the affairs of the
         Trust.

4.       The services of the Agent as provided herein are not to be deemed to be
         exclusive, and it shall be free to render services of any kind to any
         other group, firm, individual or association, and to engage in other
         business or activity.

5.       This Agreement, including Exhibit A, may be amended at any time by
         mutual written consent of the parties.


<PAGE>   4



6.       This Agreement may be terminated by either party hereto upon sixty (60)
         days written notice given by one to the other, provided that no such
         notice of termination given by the Agent to the Trust shall be
         effective unless and until a substitute person or entity has been
         engaged by the Trust to perform the services required hereunder for the
         Trust, or the Trust has certified to the Agent that other arrangements
         have been made by it to provide such services.

7.       It is understood and expressly agreed that the obligations and
         liabilities of the Trust hereunder shall not be binding upon any of the
         Trustees, shareholders, nominees, officers, agents or employees of the
         Trust, personally, but shall bind only the assets and property of the
         Trust, as provided in the Declaration of Trust of the Trust. The
         execution and delivery of this Agreement have been authorized by the
         Trustee's and signed by an authorized officer of the Trust, acting as
         such, and neither such authorization by such Trustee's nor such
         execution and delivery by such officer shall be deemed to have been
         made by any of them individually or to impose any liability on any of
         them personally, but shall bind only the assets and property of the
         Trust as provided in its Declaration of Trust.

8.       For its services specified above, the Trust shall pay to the Agent fees
         of .01% of average daily net assets with a maximum of $6,000 per Fund
         per calendar year. The above fees shall become effective on April 1,
         1999 and are payable monthly on a pro-rata basis on or before the 10th
         day of each succeeding month. In the event that a Fund has not been
         effective for the full calendar year, the fees for that Fund for such
         calendar year shall be reduced proportionately on the basis of the
         number of days it is effective for such year to the number of days in
         such years.

         IN WITNESS WHEREOF, the parties have caused this Agreement to be signed
by their respective officers thereunto duly authorized and their respective
corporate seals to be hereunto affixed, as of the day and year first above
written.


                                       ONE GROUP(R) INVESTMENT TRUST

                                       /s/ James F. Laird, Jr.
                                       ----------------------------------
                                       James F. Laird, Jr.
                                       President and Treasurer



                                       NATIONWIDE INVESTORS SERVICES, INC.

                                       /s/ Christopher A. Cray
                                       ----------------------------------
                                       Christopher A. Cray
                                       Treasurer




<PAGE>   5


                                   APPENDIX A


FUNDS OF THE TRUST

One Group Investment Trust Government Bond Portfolio 
One Group Investment Trust Balanced Portfolio 
One Group Investment Trust Mid Cap Growth Portfolio 
One Group Investment Trust Large Cap Growth Portfolio 
One Group Investment Trust Equity Index Portfolio 
One Group Investment Trust Bond Portfolio 
One Group Investment Trust Diversified Equity Portfolio 
One Group Investment Trust Diversified Mid Cap Portfolio 
One Group Investment Trust Mid Cap Value Portfolio


THE ONE GROUP(R) INVESTMENT TRUST

By:    /s/ James F. Laird, Jr.
      -----------------------------
Title: President and Treasurer
      -----------------------------

NATIONWIDE INVESTORS SERVICES, INC.

By:    /s/ Christopher A. Cray
      -----------------------------
Title: Treasurer
      -----------------------------


Dated:  February 17, 1999
        ---------------------------


<PAGE>   1
                                Exhibit 23(h)(2)
Amended and Restated Fund Participation Agreement dated as of February 17, 1999
     by and among Nationwide Life and Annuity Insurance Company, One Group
            Investment Trust, and Nationwide Advisory Services, Inc.

<PAGE>   2

                              AMENDED AND RESTATED

                          FUND PARTICIPATION AGREEMENT


This Amended and Restated Fund Participation Agreement (the "Agreement"), dated
as of the 29th day of July, 1994, and amended and restated as of the 21st day of
May, 1996, the 18th day of February, 1998, the 20th day of May, 1998, the 19th
day of November, 1998, and the 17th day of February, 1999, is made by and among
Nationwide Life and Annuity Insurance Company ("Nationwide"), One Group(R)
Investment Trust (the "Trust"), and the Trust's administrator, Nationwide
Advisory Services, Inc. (the "Administrator"), each of which hereby agrees that
shares of the series listed in Appendix A hereto (the "Funds") shall be made
available to serve as underlying investment media for variable annuity and
variable life contracts to be offered by Nationwide and to certain other
separate accounts funding variable annuity and variable life contracts issued by
other life insurance companies, and qualified pension and retirement plans,
subject to the following conditions:

1.       Nationwide represents that it has established the Nationwide VA
         Separate Account-C (the "Variable Account"), a separate account under
         Ohio law, and has registered it as a unit investment trust under the
         Investment Company Act of 1940 ("1940 Act") to serve as an investment
         vehicle for the Contracts. The Contracts provide for the allocation of
         net amounts received by Nationwide to separate series of the Variable
         Account for investment in the shares of the Funds. Selection of a
         particular series is made by the Contract owner who may change such
         selection from time to time in accordance with the terms of the
         applicable Contract.

2.       Nationwide agrees to make every reasonable effort to market its
         Contracts. In marketing its Contracts, Nationwide will comply with all
         applicable state or Federal laws.

3.       The Administrator or its designee will provide closing net asset value,
         dividend and capital gain information at the close of trading each
         business day to Nationwide. "Business day" shall mean any day on which
         the New York Stock Exchange is open for trading and on which the Trust
         calculates net asset value for each Fund as set forth in the Trust's
         prospectus and Statement of Additional Information. Nationwide will use
         this data to calculate unit values, which will in turn be used to
         process that same business day's Variable Account unit value. The
         Variable Account processing will be done the same evening, and orders
         for purchases or redemptions will be placed the morning of the
         following business day. Orders will be sent directly to the Trust or
         its specified designee. Payment for purchases will be wired to a
         custodial account designated by the Trust or the Administrator and
         payment for redemptions will be wired to an account designated by
         Nationwide so as to coincide with the order for Trust shares. The
         Administrator or its designee will execute the orders at the net asset
         value as determined as of the close of trading on the prior day.
         Dividends and capital gains distributions shall be reinvested in
         additional shares at the ex-date net asset value. Notwithstanding the
         above, the Administrator or its designee shall not be held responsible
         for providing Nationwide with net asset value, dividend and capital
         gain information when the New York Stock 

                                       1

<PAGE>   3

         Exchange is closed, when an emergency exists making the valuation of
         net assets not reasonably practicable, or during any period when the
         Securities and Exchange Commission ("SEC") has by order permitted the
         suspension of pricing shares for the protection of shareholders.

4.       All expenses incident to the performance by the Trust under this
         Agreement shall be the responsibility of the Trust or the
         Administrator, as agreed to among themselves, but in no event shall
         such expenses be the responsibility of Nationwide or the Variable
         Account. The Trust shall pay the cost of registration of Fund shares
         with the SEC. The Trust shall pay for and distribute to Nationwide,
         proxy material, periodic Trust reports to shareholders and other
         material the Trust may require to be sent to Contract owners. The Trust
         will pay the mailing expenses of Nationwide for distributing such proxy
         material, reports and other material to the Contract owners, who are
         the beneficial shareholders of the Trust. The Trust shall pay the cost
         of qualifying Fund shares in states where required. The Administrator
         shall pay for and distribute to Nationwide, Trust prospectuses. In the
         event that the Variable Account prospectus and the Trust prospectus are
         printed together in one document form, the Trust's share of the
         printing cost for such disclosure document will be equal to the total
         cost of printing the disclosure documents multiplied by the ratio of
         the total number of pages in the Trust's prospectus to the total number
         of pages in the disclosure document, with Nationwide paying the rest.
         The Administrator will provide Nationwide with a copy of the Statement
         of Additional Information suitable for duplication.

5.       Nationwide and its agents shall make no representations concerning the
         Trust except those contained in the then-current prospectus and
         Statement of Additional Information of the Trust and in current printed
         sales literature of the Trust.

6.       Administrative services to Contract owners shall be the responsibility
         of Nationwide and shall not be the responsibility of the Trust or the
         Administrator. The Trust and the Administrator recognize that
         Nationwide will be the sole shareholder of Trust shares issued pursuant
         to the Contracts.

7.1      The Trust represents that it believes, in good faith, that the Funds
         will at all times qualify as regulated investment companies under
         Subchapter M of the Internal Revenue Code of 1986, as amended (the
         "Code") and that it will make every effort to maintain such
         qualification of the Funds and that it will notify Nationwide
         immediately upon having a reasonable basis for believing that a Fund
         has ceased to so qualify or that it might not so qualify in the future.

7.2      Nationwide represents that it believes, in good faith, that the
         Contracts will at all times be treated as annuity contracts under
         applicable provisions of the Code, and that it will make every effort
         to maintain such treatment and that it will notify the Trust
         immediately upon having a reasonable basis for believing that the
         Contracts have ceased to be so treated or that they might not be so
         treated in the future.

7.3      The Trust represents that it believes, in good faith, that the Funds
         will at all times comply 

                                       2

<PAGE>   4

         with the diversification requirements set forth in Section 817(h) of
         the Code and Section 1.817-5(b) of the regulations under the Code, and
         that it will make every effort to maintain the Fund's compliance with
         such diversification requirements, and that it will notify Nationwide
         immediately upon having a reasonable basis for believing that a Fund
         has ceased to so qualify or that a Fund might not so qualify in the
         future.

7.4      Nationwide represents that it believes, in good faith, that the
         Variable Account is a "segregated asset account" and that interests in
         the Variable Account are offered exclusively through the purchase of a
         "variable contract" within the meaning of such terms under Section
         1.8170-5(f)(2) of the regulations under the Code, and that it will make
         every effort to continue to meet such definitional requirements, and
         that it will notify the Trust immediately upon having a reasonable
         basis for believing that such requirements have ceased to be met or
         that they might not be met in the future.

7.5      The Trust shall provide Nationwide within ten (10) business days after
         the end of each calendar quarter a letter from the appropriate officer
         of the Trust certifying to the continued accuracy of the
         representations contained in Section 7.1 and Section 7.3 above, and
         attaching a detailed listing of the individual securities and other
         assets, if any, held by the Trust as of the end of such calendar
         quarter.

8.       The Administrator or its designee shall provide Nationwide within five
         (5) business days after the end of each month a monthly statement of
         account confirming all transactions made during that month in the
         Variable Account.

9.       The Trust agrees that to the extent the Trust decides in the future to
         finance distribution expenses pursuant to Rule 12b-1 of the 1940 Act,
         the Trust will undertake to have the board of trustees, a majority of
         whom are not interested persons of the Trust, formulate and approve any
         plan under Rule 12b-1 to finance distribution expenses.

10.      The Trust and Administrator agree to provide Nationwide no later than
         March 1 of each year with the investment advisory and other expenses of
         the Trust incurred during the Trust's most recently completed fiscal
         year as of March 1, to permit Nationwide to fulfill its prospectus
         disclosure obligations under the SEC's variable annuity fee table
         requirements.

11. This Agreement shall terminate as to the sale and issuance of new Contracts:

         (a)      at the option of any party hereto upon six (6) months advance
                  written notice to the others;

         (b)      at the option of the Trust, if they determine that liquidation
                  of the Trust is in the best interests of the Trust and its
                  beneficial shareholders. Reasonable advance notice of election
                  to liquidate shall be furnished by the Trust to permit the
                  substitution of Fund shares with the shares of another
                  investment company, pursuant to SEC regulation;

                                       3
<PAGE>   5

         (c)      at the option of Nationwide if Trust shares are not available
                  for any reason to meet the requirements of Contracts as
                  determined by Nationwide. Reasonable advance notice of
                  election to terminate shall be furnished by Nationwide;

         (d)      at the option of any party hereto upon institution of formal
                  proceedings against any other party hereto by the National
                  Association of Securities Dealers ("NASD"), the SEC or any
                  other regulatory body;

         (e)      upon a decision by Nationwide, in accordance with regulations
                  of the SEC, to substitute such Trust shares with the shares of
                  another investment company for Contracts for which the Trust
                  shares have been selected to serve as the underlying
                  investment medium. Nationwide will give sixty (60) days
                  written notice to the Trust and the Administrator of any
                  proposed vote to substitute Trust shares;

         (f)      upon assignment of this Agreement by any party unless made
                  with the written consent of each other party;

         (g)      in the event Trust shares are not registered, issued or sold
                  in conformance with Federal law or such law precludes the use
                  of Trust shares as an underlying investment medium of
                  Contracts issued or to be issued by Nationwide. Prompt notice
                  shall be given by either party to the other in the event the
                  conditions of this provision occur.

12.      Termination as the result of any cause listed in the preceding
         paragraph, except for paragraph 11. (b) , shall not affect the Trust's
         obligation to furnish Trust shares for Contracts then in force for
         which the shares of the Trust serve or may serve as an underlying
         medium, unless such further sale of Trust shares is proscribed by law
         or the SEC or other regulatory body.

13.      Each notice required by this Agreement shall be given by wire and
         confirmed in writing to:

                  Nationwide Life and Annuity Insurance Company
                  One Nationwide Plaza
                  Columbus, Ohio 43215
                  Attn:  Beth Davin, General Counsel

                  One Group(R) Investment Trust
                  Three Nationwide Plaza
                  Columbus, Ohio 43215
                  Attn: James F. Laird, President and Treasurer


                                       4
<PAGE>   6

                  Administrator
                  Nationwide Advisory Services, Inc.
                  Three Nationwide Plaza
                  Columbus, Ohio 43215
                  Attn: Christopher A. Cray, Treasurer

14.      Advertising and sales literature with respect to the Trust prepared by
         Nationwide or its agents for use in marketing its Contracts will be
         submitted to the Trust for review before Nationwide submits such
         material to the SEC or NASD for review.

15.      So long as and to the extent that the SEC continues to interpret the
         1940 Act to require pass-through voting privileges for variable
         contract owners, Nationwide will distribute all proxy material
         furnished by the Trust and will vote Trust shares in accordance with
         instructions received from the Contract owners of such Trust shares.
         Nationwide shall vote the Trust shares for which no instructions have
         been received in the same proportion as Trust shares for which said
         instructions have been received from Contract owners. Nationwide and
         its agents will in no way recommend action in connection with or oppose
         or interfere with the solicitation of proxies for the Trust shares held
         for such Contract owners.

16.      (a)      Nationwide agrees to indemnify and hold harmless the Trust,
                  the Administrator and the Trust's investment adviser (the
                  "Adviser") and each of their directors, officers, employees,
                  agents and each person, if any, who controls the Trust, the
                  Administrator or the Adviser within the meaning of the
                  Securities Act of 1933 (the "Act") against any losses, claims,
                  damages or liabilities to which the Trust, Administrator or
                  the Adviser or any such director, officer, employee, agent or
                  controlling person may become subject, under the Act or
                  otherwise, insofar as such losses, claims, damages or
                  liabilities (or actions in respect thereof) arise out of or
                  are based upon:

                  (i)      any untrue statement or alleged untrue statement of
                           any material fact contained in information furnished
                           by Nationwide for use in the Registration Statement
                           or prospectus of the Trust or in the Registration
                           Statement or prospectus for the Variable Account;

                  (ii)     the omission or the alleged omission to state in the
                           Registration Statement or prospectus of the Variable
                           Account a material fact required to be stated therein
                           or necessary to make the statements therein not
                           misleading;
                  (iii)    conduct, statements or representations of Nationwide
                           or its agents, with respect to the sale and
                           distribution of Contracts for which Trust shares are
                           an underlying investment; or

                  (iv)     the failure of Nationwide to provide the services and
                           furnish the materials under the terms of this
                           Agreement;

                                       5
<PAGE>   7

                  provided however, that Nationwide shall not be liable in any
                  such case to the extent any such statement, omission or
                  representation or such alleged statement, alleged omission or
                  alleged representation was made in reliance upon and in
                  conformity with information furnished to Nationwide by or on
                  behalf of the Trust, the Administrator, or the Adviser.

                  Nationwide will reimburse any legal or other expenses
                  reasonably incurred by the Trust, the Administrator or the
                  Adviser or any such director, officer, employee, agent or
                  controlling person in connection with investigating or
                  defending any such loss, claim, damage, liability or action,
                  provided, however, that Nationwide shall have prior approval
                  of the use of counsel and the expenditure of fees.

                  This indemnity agreement will be in addition to any liability
                  which Nationwide may otherwise have.

         (b)      The Trust agrees to indemnify and hold harmless Nationwide and
                  each of its directors, officers, employees, agents and each
                  person, if any, who controls Nationwide within the meaning of
                  the Act against any losses, claims, damages or liabilities to
                  which Nationwide or any such director, officer, employee,
                  agent or controlling person may become subject, under the Act
                  or otherwise, insofar as such losses, claims, damages or
                  liabilities (or actions in respect thereof) arise out of or
                  are based upon:

                  (i)      any untrue statement or alleged untrue statement of
                           any material fact contained in the Registration
                           Statement or prospectus or sales literature of the
                           Trust;

                  (ii)     the omission or the alleged omission to state in the
                           Registration Statement or prospectus of the Trust a
                           material fact required to be stated therein or
                           necessary to make the statements therein not
                           misleading;

                  (iii)    the Trust's failure to keep the Trust fully
                           diversified and qualified as a regulated investment
                           company as required by the applicable provisions of
                           the Code, the 1940 Act, and the applicable
                           regulations promulgated thereunder;

                  (iv)     the Trust's or the Administrator's (1) incorrect
                           calculation of the daily net asset value, dividend
                           rate or capital gain distribution rate; (2) incorrect
                           reporting of the daily net asset value, dividend rate
                           or capital gain distribution rate; or (3) untimely
                           reporting of the net asset value, dividend rate or
                           capital gain distribution rate; or

                  (v)      the failure of the Trust or the Administrator to
                           provide the services and furnish the materials under
                           the terms of this Agreement;



                                       6
<PAGE>   8

                  provided however, that the Trust and the Administrator will
                  not be liable in any such case to the extent that any such
                  loss, claim, damage or liability arises out of or is based
                  upon an untrue statement or omission or alleged omission made
                  in such Registration Statement or prospectus in conformity
                  with written information furnished to the Trust by Nationwide
                  specifically for use therein.

                  The Trust and the Administrator will reimburse any legal or
                  other expenses reasonably incurred by Nationwide or any such
                  director, officer, employee, agent or controlling person in
                  connection with investigating or defending any such loss,
                  claim, damage, liability or action. This indemnity agreement
                  will be in addition to any liability which the Trust and the
                  Administrator may otherwise have.

         (c)      Each party shall promptly notify the other in writing of any
                  situation which presents or appears to involve a claim which
                  may be subject of indemnification hereunder and the
                  indemnifying party shall have the option to defend against any
                  such claim. In the event the indemnifying party so elects, it
                  will notify the indemnified party and shall assume the defense
                  of such claim, and the indemnified party shall cooperate fully
                  with the indemnifying party, at the indemnifying party's
                  expense, in the defense of such claim. Notwithstanding the
                  foregoing, the indemnified party shall be entitled to
                  participate in the defense of such claim at its own expense
                  through counsel of its own choosing. Neither party shall
                  confess any claim nor make any compromise in any action or
                  proceeding which may result in a finding of wrongdoing by the
                  other party without the other party's prior written consent.
                  Any notice given by the indemnifying party to an indemnified
                  party or participation in or control of the litigation of any
                  such claim by the indemnifying party shall in no event be
                  deemed to be an admission by the indemnifying party of
                  culpability, and the indemnifying party shall be free to
                  contest liability with respect to the claim among parties.

         (d)      It is understood and expressly agreed that the obligations and
                  liabilities of the Trust hereunder shall not be binding upon
                  any of the Trustees, shareholders, nominees, officers, agents
                  or employees of the Trust, personally, but shall bind only the
                  assets and property of the Trust, as provided in the
                  Declaration of Trust of the Trust. The execution and delivery
                  of this Agreement have been authorized by the Trustee's and
                  signed by an authorized officer of the Trust, acting as such,
                  and neither such authorization by such Trustee's nor such
                  execution and delivery by such officer shall be deemed to have
                  been made by any of them individually or to impose any
                  liability on any of them personally, but shall bind only the
                  assets and property of the Trust as provided in its
                  Declaration of Trust.

17.      The forbearance or neglect of any party to insist upon strict
         compliance by any other party, with any of the provisions of this
         Agreement, whether continuing or not, or to declare a forfeiture of
         termination against the other parties, shall not be construed as a
         waiver of any of the rights or privileges of any party hereunder. No
         waiver of any right or privilege of any party arising from any default
         or failure of performance by any party shall affect the rights or
         privileges of the other parties in the event of a further default or




                                       7
<PAGE>   9
         failure of performance.

18.      The obligations of One Group(R) Investment Trust entered into in the
         name or on behalf thereof by any of the Trustees, representatives or
         agents are made not individually, but in such capacities, and are not
         binding upon any of the Trustees, Shareholders or representatives of
         the Trust personally, but bind only the assets of the Trust, and all
         persons dealing with any series of Shares of the Trust must look solely
         to the assets of the Trust belonging to such series for the enforcement
         of any claims against the Trust.

19.      This Agreement shall be construed and the provisions hereof interpreted
         under and in accordance with the laws of Massachusetts. This Agreement
         shall be subject to the provisions of the federal securities statutes,
         rules and regulations, including such exemptions from those statutes,
         rules and regulations as the SEC may grant and the terms hereof shall
         be interpreted and construed in accordance therewith. In case of any
         conflict of law, the Investment Company Act of 1940 shall control.

20.      This agreement supercedes any and all prior fund participation
         agreements made by and between the parties.


NATIONWIDE LIFE AND ANNUITY INSURANCE COMPANY

By:     /s/ Joseph Rath
       --------------------------------------
Title:  Vice President
       --------------------------------------


ONE GROUP(R) INVESTMENT TRUST

By:     /s/ James F. Laird, Jr.
       --------------------------------------
Title:  President and Treasurer
       --------------------------------------


NATIONWIDE ADVISORY SERVICES, INC.

By:     /s/ Christopher A. Cray
       --------------------------------------
Title:  Treasurer
       --------------------------------------



                                       8
<PAGE>   10

                                   APPENDIX A

FUNDS OF THE TRUST

One Group Investment Trust Government Bond Portfolio
One Group Investment Trust Balanced Portfolio 
One Group Investment Trust Mid Cap Growth Portfolio 
One Group Investment Trust Large Cap Growth Portfolio
One Group Investment Trust Equity Index Portfolio 
One Group Investment Trust Bond Portfolio 
One Group Investment Trust Diversified Equity Portfolio 
One Group Investment Trust Diversified Mid Cap Portfolio 
One Group Investment Trust Mid Cap Value Portfolio


NATIONWIDE LIFE AND ANNUITY INSURANCE COMPANY

By:     /s/ Joseph Rath
       --------------------------------------
Title:  Vice President
       --------------------------------------


ONE GROUP(R) INVESTMENT TRUST

By:     /s/ James F. Laird, Jr.
       --------------------------------------
Title:  President and Treasurer
       --------------------------------------


NATIONWIDE ADVISORY SERVICES, INC.

By:     /s/ Christopher A. Cray
       --------------------------------------
Title:  Treasurer
       --------------------------------------



Dated: February 17, 1999


                                       9

<PAGE>   1










                                Exhibit 23(h)(3)

                              Amended and Restated
                       Administrative Services Agreement
<PAGE>   2
                              AMENDED AND RESTATED

                        ADMINISTRATIVE SERVICES AGREEMENT


This Amended and Restated Administrative Services Agreement ("Agreement") is
made as of this 17th day of February, 1999, between One Group(R) Investment
Trust, a Massachusetts business trust (herein called the "Trust"), and
Nationwide Advisory Services, Inc., an Ohio corporation, (herein called the
"Administrator").

WHEREAS, the Trust and the Administrator executed an Administrative Services
Agreement dated May 20, 1994 and the Trust and the Administrator executed an
Amended and Restated Administrative Services Agreement on August 23, 1996,
February 18, 1998, May 20, 1998, August 19, 1998, and February 17, 1999; and

WHEREAS, the parties hereto desire to amend the Amended and Restated
Administrative Services Agreement; and

WHEREAS, the Trust is a Massachusetts business trust, consisting of the series
of shares listed in Appendix A hereto (the "Funds"), which operates as an
open-end management investment company and will so register under the Investment
Company Act of 1940, as amended (the "Investment Company Act"); and

WHEREAS, the Trust desires to retain the Administrator as administrator to
provide certain administrative services described below with respect to each of
the Funds, and the Administrator is willing to render such services;

NOW, THEREFORE, in consideration of the premises and mutual covenants set forth
herein, the parties hereto agree as follows:

1.       APPOINTMENT OF ADMINISTRATOR. The Trust hereby appoints the
         Administrator as administrator of the Funds on the terms and conditions
         set forth in this Agreement; and the Administrator hereby accepts such
         appointment and agrees to perform the services and duties set forth in
         Section 2 of this Agreement in consideration of the compensation
         provided for in Section 4 hereof.

2.       SERVICES AND DUTIES. As Administrator, and subject to the supervision
         and control of the Trust's Board of Trustees, the Administrator will
         provide facilities, equipment, and personnel to carry out the following
         administrative services for operation of the business and affairs of
         the Trust and each of its Funds:

         a.       prepare, file, and maintain the Trust's governing documents,
                  including the Declaration of Trust (which has already been
                  prepared and filed), the Bylaws, minutes of meetings of
                  Trustees and shareholders, and proxy statements for meetings
                  of shareholders;
<PAGE>   3
         b.       prepare and file with the Securities and Exchange Commission
                  and the appropriate state securities authorities the
                  registration statements for the Trust and the Trust's shares
                  and amendments thereto, the Trust's reports pursuant to
                  Investment Company Act Rule 24f-2, reports to shareholders and
                  regulatory authorities, including form N-SAR, and
                  prospectuses, proxy statements, and such other documents as
                  may be necessary or convenient to enable the Trust to make
                  continuous offering of its shares and to conduct its affairs;

         c.       prepare, negotiate, and administer contracts on behalf of the
                  Trust with, among others, the Trust's custodian and transfer
                  agent;

         d.       supervise the Trust's custodian and fund accounting personnel
                  in the maintenance of the Trust's general ledger and in the
                  preparation of the Trust's financial statements, including
                  oversight of expense accruals and payments, determination of
                  the net asset value of the Trust's assets and of the Trust's
                  shares, and of the declaration and payments of dividends and
                  other distributions to shareholders;

         e.       calculate performance data of the Funds for dissemination to
                  information services covering the investment company industry;

         f.       prepare and file on a timely basis the Trust's Federal and
                  State income and other tax returns;

         g.       examine and review the operations of the Trust's custodian,
                  transfer agent and investment adviser to promote compliance
                  with applicable state and federal law;

         h.       coordinate the layout and printing of publicly disseminated
                  prospectuses and reports;

         i.       perform internal audit examinations in accordance with
                  procedures to be adopted by the Administrator and the Trust;

         j.       assist with the design, development, and operation of the 
                  Trust;

         k.       provide individuals reasonably acceptable to the Trust's Board
                  of Trustees for nomination, appointment, or election as
                  officers of the Trust, who will be responsible for the
                  management of certain of the Trust's affairs as determined by
                  the Trust's Board. of Trustees;

         l.       monitor the Trust's compliance with Section 817 and Sections
                  851 through 855 of the Internal Revenue Code of 1986, as
                  amended, and the regulations promulgated thereunder, so as to
                  enable the Trust to comply with the diversification
                  requirements applicable to investments of variable contracts
                  and to maintain its status as a "regulated investment
                  company;"
<PAGE>   4
         m.       advise the Trust and its Board of Trustees on matters
                  concerning the Trust and its affairs; and

         n.       provide the Trust with office space and personnel.

         The foregoing, along with any additional services that the
         Administrator shall agree in writing to perform for the Trust
         hereunder, shall hereafter be referred to as "Administrative Services."
         In compliance with the requirements of Rule 31a-3 under the Investment
         Company Act, the Administrator hereby agrees that all records that it
         maintains for the Trust are the property of the Trust and further
         agrees to surrender promptly to the Trust any of such records upon the
         Trust's request. The Administrator further agrees to preserve for the
         periods prescribed by Investment Company Act Rule 31a-2 the records
         required to be maintained by Investment Company Act Rule 31a-1.
         Administrative Services shall not include any duties, functions, or
         services to be performed for the Trust by the Trust's investment
         adviser, custodian, or transfer agent pursuant to their agreements with
         the Trust.

         The Administrator acknowledges the importance of efficient and prompt
         transmission of information to Nationwide Life and Annuity Insurance
         Company, the purchaser of Trust shares to fund the obligations of
         certain variable annuity contracts. The Administrator agrees to use its
         best efforts to meet the deadline for transmission of pricing
         information presently set by Nationwide Life and Annuity Insurance
         Company and such other time deadlines as may be established from time
         to time in the future.

         When performing Administrative Services to the Trust, the Administrator
         will comply with the provisions of the Declaration of Trust and Bylaws
         of the Trust, will safeguard and promote the welfare of the Trust, and
         will comply with the policies that the Trustees may from time to time
         reasonably determine, provided that such policies are not in conflict
         with this Agreement, the Trust's governing documents, or any applicable
         statutes or regulations.

3.       EXPENSES. The Administrator shall be responsible for expenses incurred
         in providing all the Administrative Services to the Trust, including
         the compensation of the Administrator employees who serve as Officers
         of the Trust. The Trust (or the Trust's investment adviser) shall be
         responsible for all other expenses incurred by the Administrator on
         behalf of the Trust, including without limitation: (i) investment
         advisory fees; (ii) interest and taxes; (iii) brokerage commissions and
         other costs in connection with the purchase or sale of securities and
         other investment instruments; (iv) all expenses incurred in valuing
         portfolio securities for the Equity Index Fund; (v) fees and expenses
         of the Trust's trustees, other than those who are "interested persons"
         of the Administrator, distributor or investment adviser of the Trust;
         (vi) legal and audit expenses; (vii) custodian, registrar and transfer
         agent fees and expenses; (viii) fees and expenses related to the
         registration and qualification of the Trust and the Trust's shares for
         distribution under state and federal securities laws; (ix) expenses of
         printing and mailing reports and notices and proxy material to
         beneficial shareholders of the Trust; (x) all other expenses incidental
         to holding meetings of the Trust's shareholders, including proxy
<PAGE>   5
         solicitations therefor, (xi) insurance premiums for fidelity and other
         coverage; (xii) association membership dues; (xiii) such nonrecurring
         or extraordinary expenses as may arise, including those relating to
         actions, suits or proceedings to which the Trust is a party and the
         legal obligation which the Trust may have to indemnify the Trust's
         trustees and officers with respect thereto.

4.       COMPENSATION. For the Administrative Services provided, the Trust
         hereby agrees to pay and the Administrator hereby agrees to accept as
         full compensation for its services rendered hereunder an administrative
         fee, payable monthly as soon as practicable after the last day of each
         month. The administrative fee shall be computed on a daily basis at
         annual rates equal to the following percentages of the average net
         assets of the Trust (less assets of the Equity Index Fund): 0.24% of
         the Trust's average net assets up to $250 million, and 0.14% of Trust's
         average net assets in excess of $250 million. The administrative fee
         for the Equity Index Fund shall be payable in the manner described
         above and shall be computed on a daily basis at the annual rate of
         0.14% of the average daily net assets of the Equity Index Fund.

         In the event the total expenses of any one of the Funds in any fiscal
         year exceed expense limitations imposed by applicable state securities
         regulations, the Administrator and the Trust's investment adviser shall
         reimburse that Fund by the amount of such excess in proportion to their
         respective fees (after giving effect to any waiver of fees agreed to by
         the Administrator and investment adviser).

         In case of termination of this Agreement during any month, the
         administrative fee for that month shall be reduced proportionately on
         the basis of the number of business days during which it is in effect,
         and the fee computed upon the average net assets for the business days
         it is so in effect for that month.

5.       RESPONSIBILITY OF ADMINISTRATOR.

         a.       The Administrator shall not be liable for any error of
                  judgment or mistake of law or for any loss suffered by the
                  Trust in connection with the matters to which this Agreement
                  relates, except a loss resulting from willful misfeasance, bad
                  faith or negligence on its part in the performance of its
                  duties or from reckless disregard by it of its obligations and
                  duties under this Agreement. Any person, even though also an
                  officer, director, partner, employee or agent of the
                  Administrator, who may be or become an officer, trustee,
                  employee or agent of the Trust, shall be deemed, when
                  rendering services to the Trust or acting on any business of
                  the Trust (other than services or business in connection with
                  the duties of the Administrator hereunder) in accordance with
                  his responsibilities to the Trust as such officer, employee or
                  agent, to be rendering such services to or acting solely for
                  the Trust and not as an officer, director, partner, employee
                  or agent or one under the control or direction of the
                  Administrator even through paid by the Administrator.
<PAGE>   6
         b.       The Administrator shall be kept indemnified by the Trust and
                  be without liability for any action taken or thing done by it
                  in performing the Administrative Services in accordance with
                  the above standards; provided, however, that the Trust will
                  not indemnify the Administrator for the portion of any loss or
                  claim caused, directly or indirectly, by the negligence of the
                  Administrator. In order that the indemnification provisions
                  contained in this Section 5 shall apply, however, it is
                  understood that if in any case the Trust may be asked to
                  indemnify or save the Administrator harmless, the Trust shall
                  be fully and promptly advised of all pertinent facts
                  concerning the situation in question, and it is further
                  understood that the Administrator will use all reasonable care
                  to identify and notify the Trust promptly concerning any
                  situation which presents or appears likely to present the
                  probability of such a claim for indemnification against the
                  Trust. The Trust shall have the option to defend the
                  Administrator against any claim which may be the subject of
                  this indemnification. In the event that the Trust so elects it
                  will so notify the Administrator and thereupon the Trust shall
                  take over complete defense of the claim, and the Administrator
                  shall in such situation initiate no further legal or other
                  expenses for which it shall seek indemnification under this
                  Section. The Administrator shall in no case confess any claim
                  or make any compromise in any case in which the Trust will be
                  asked to indemnify the Administrator except with the Trust's
                  written consent.

6.       Duration and Termination

         a.       The initial term of this Agreement shall commence as of May
                  20, 1994 and extend until August 31, 1997.

         b.       Thereafter, this Agreement shall be automatically renewed each
                  year for an additional term of one year, unless notice of
                  termination has been delivered by either party to the other no
                  less than 90 days before the beginning of such additional
                  term.

         c.       Notwithstanding the foregoing, this Agreement may be
                  terminated at any time by mutual agreement of the parties
                  hereto or for "cause" (as defined below), in either case on
                  not less than 60 days' notice given by the Trust's Board of
                  Trustees or given by the Administrator. For purposes of this
                  Agreement, "cause" shall mean (a) willful misfeasance, bad
                  faith, gross negligence or reckless disregard on the part of
                  the Administrator with respect to its obligations and duties
                  set forth herein; (b) a final judicial, regulatory or
                  administrative ruling or order in which the Administrator has
                  been found guilty of criminal misconduct or of unethical
                  behavior in the operation of its business; (c) the dissolution
                  or liquidation of either party or other cessation of business
                  other than a reorganization or recapitalization of such party
                  as an ongoing business; (d) financial difficulties on the part
                  of either party which is evidenced by the authorization or
                  commencement of, or involvement by way of pleading, answer,
                  consent, or acquiescence in, a voluntary or involuntary case
                  under Title 11 of the United States Code, as may be in effect
<PAGE>   7
                  from time to time, or any applicable law, other than said
                  Title 11, of any jurisdiction relating to the liquidation or
                  reorganization of debtors or to the modification or alteration
                  of the rights of creditors; or (e) any other circumstances
                  which may substantially impair the performance of either
                  party's obligations and duties, or the ability to perform
                  those obligations and duties, as contemplated herein.

         d.       This Agreement shall be reviewed under the "cause" provisions
                  of Section 6(c) at least annually annually by the Trust's
                  Board of Trustees.

         e.       Upon the termination of this Agreement, the Trust shall pay
                  to the Administrator such compensation as may be payable prior
                  to the effective date of such termination. In the event that
                  the Trust designates a successor to any of the Administrator's
                  obligations hereunder, the Administrator shall, at the
                  direction of the Trust, transfer to such successor all
                  relevant books, records and other data established or
                  maintained by the Administrator under the foregoing
                  provisions.

7.       AMENDMENT. No provision of this Agreement may be changed, waived,
         discharged or terminated orally, but only by an instrument in writing
         signed by the party against which an enforcement of the change, waiver,
         discharge or termination is sought.

8.       LIMITATIONS OF LIABILITY OF TRUSTEES EMPLOYEES, AGENTS AND SHAREHOLDERS
         OF THE TRUST. The Administrator is expressly put on notice of the
         limitation of liability as set forth in the Declaration of Trust and
         agrees that the obligations assumed by the Trust pursuant to this
         Agreement shall be limited in any case to the Trust and its assets and
         that the Administrator shall not seek satisfaction of any such
         obligations from the shareholders of the Trust, the Trustees, officers,
         employees or agents of the Trust, or any of them.

9.       PROPRIETARY AND CONFIDENTIAL INFORMATION. The Administrator agrees on
         behalf of itself and its directors, officers, and employees to treat
         confidentially and as proprietary information of the Trust all records
         and other information relative to the Trust and prior, present, or
         potential Shareholders, and not to use such records and information for
         any purpose other than performance of its responsibilities and duties
         hereunder, except after prior notification to and approval in writing
         by the Trust, which approval may not be withheld where the
         Administrator may be exposed to civil or criminal contempt proceedings
         for failure to comply, when requested to divulge such information by
         duly constituted authorities, or when so requested by the Trust.
         Failure by the Administrator to comply with the provisions of this
         Section will constitute "cause" for purposes of Section 6(c).

10.      NOTICES. Notices of any kind to be given to the Trust hereunder by the
         Administrator shall be in writing and shall be duly given if delivered
         to the Trust and to its investment adviser at the following address:
<PAGE>   8
                  The One Group(R) Investment Trust
                  Three Nationwide Plaza 3-26-02
                  Columbus, Ohio 43215
                  Attn.:  James F. Laird, Jr.,  President and Treasurer

         Notices of any kind to be given to the Administrator hereunder by the
         Trust shall be in writing and shall be duly given if delivered to the
         Administrator at:

                  Nationwide Advisory Services, Inc.
                  Three Nationwide Plaza
                  Columbus, Ohio 43215
                  Attn.: Christopher A. Cray, Treasurer

11.      MISCELLANEOUS. The captions in this Agreement are included for
         convenience of reference only and in no way define or delimit any of
         the provisions hereof or otherwise affect their construction or effect.
         If any provision of this Agreement shall be held or made invalid by a
         court or regulatory agency decision, statute, rule or otherwise, the
         remainder of this Agreement shall not be affected thereby. Subject to
         the provisions of Section 5, hereof, this Agreement shall be binding
         upon and shall inure to the benefit of the parties hereto and their
         respective successors and shall be governed by Massachusetts law;
         provided, however, that nothing herein shall be construed in a manner
         inconsistent with the Investment Company Act of 1940 or any rule or
         regulation promulgated by the Securities and Exchange Commission
         thereunder.

IN WITNESS WHEREOF, the parties hereto have caused this instrument to be
executed by their officers designated below as of the day and year first above
written.



THE ONE GROUP(R) INVESTMENT TRUST

By:    /s/ James F. Laird, Jr.
   --------------------------------
Title: President and Treasurer
      -----------------------------

NATIONWIDE ADVISORY SERVICES, INC.

By:    /s/ Christopher A. Cray
   --------------------------------
Title: Treasurer
      -----------------------------
<PAGE>   9
                                   APPENDIX A

FUNDS OF THE TRUST

One Group Investment Trust Government Bond Portfolio
One Group Investment Trust Balanced Portfolio 
One Group Investment Trust Mid Cap Growth Portfolio 
One Group Investment Trust Large Cap Growth Portfolio 
One Group Investment Trust Equity Index Portfolio 
One Group Investment Trust Bond Portfolio
One Group Investment Trust Diversified Equity Portfolio 
One Group Investment Trust Diversified Mid Cap Portfolio 
One Group Investment Trust Mid Cap Value Portfolio


THE ONE GROUP(R) INVESTMENT TRUST

By:    /s/ James F. Laird, Jr.
   --------------------------------
Title: President and Treasurer
      -----------------------------

NATIONWIDE ADVISORY SERVICES, INC.

By:    /s/ Christopher A. Cray
   --------------------------------
Title: Treasurer
      -----------------------------



Dated:  February 17, 1999


<PAGE>   1
                                Exhibit 23(h)(4)
            Form of Sub-Administration Agreement between Nationwide
      Advisory Services, Inc. and Banc One Investment Advisors Corporation
<PAGE>   2
                          SUB-ADMINISTRATION AGREEMENT


     AGREEMENT made this 1st day of April, 1999, between Nationwide Advisory
Services, Inc. (the "Administrator"), an Ohio corporation having its principal
place of business at Three Nationwide Plaza, Columbus, Ohio 43215 and Banc One
Investment Advisors Corporation (the "Sub-Administrator"), an Ohio corporation
having its principal place of business at 1111 Polaris Parkway, Columbus, Ohio
43240.

     WHEREAS, the Administrator has entered into an Administrative Services
Agreement dated May 20, 1994, as amended, ("Administration Agreement"), with One
Group(R) Investment Trust (the "Trust"), a Massachusetts business trust having
its principal place of business at Three Nationwide Plaza, Columbus, Ohio 43215,
concerning the provision of administrative services for the investment
portfolios of the Trust identified on Schedule A hereto, as such Schedule shall
be amended from time to time (individually referred to herein as a "Fund" and
collectively as the "Funds"); and

     WHEREAS, the Administrator desires to retain the Sub-Administrator to
assist it in performing administrative services with respect to each Fund and
the Sub-Administrator is willing to perform such services on the terms and
conditions set forth in this Agreement;

     NOW, THEREFORE, in consideration of the mutual premises and covenants
herein set forth, the parties agree as follows:

     1. Services as Sub-Administrator. As provided herein, the Sub-Administrator
will perform the following duties:

(a)  assist the Trust in the supervision of all aspects of the operations of the
     Funds except those performed by the investment adviser for the Funds under
     its Investment Advisory Agreement;

(b)  assist the Administrator in the coordination and review of portfolio
     compliance checklists completed by the investment advisor for the Funds,
     including follow-up and board reporting of specific issues arising from the
     checklists;

(c)  assist the Administrator in the monitoring of all board approved security
     procedures and transactions, including, but not limited to the following:
     Rule 10f-3, 17a-7, 17e-1, 144A and 12d3-1, and in the preparation of the
     quarterly board reporting of related holdings and transactions;

(d)  assist the Trust to the extent requested by the Trust in the preparation
     and filing of the Trust's Annual and Semi-Annual Reports to Shareholders;

(e)  assist the Administrator in preparing and filing with the Securities and
     Exchange Commission all required filings, including, but not limited to,
     Registration Statements on Form N-1A and all amendments thereto, proxy
     statements, and shareholder reports, with the advice of Trust's counsel;


                                       1
<PAGE>   3
(f)  provide Trustee Board meeting coordination and support, including the
     preparation and binding of documents related thereto and the distribution
     of such documents.

     The Sub-Administrator will keep and maintain all books and records relating
to its services in accordance with Rule 31a-1 under the 1940 Act.

     2. Compensation; Reimbursement of Expenses. The Administrator will pay the
Sub-Administrator for the services provided under this Agreement a fee with
respect to each Fund calculated at the annual rate of up to five one-hundredths
of one percent (.05%) of such Fund's average daily net assets. The fee payable
hereunder shall be calculated and paid on a monthly basis. The fee for the
period from the day of the month this Agreement is entered into until the end of
that month shall be prorated according to the proportion which such period bears
to the full monthly period. Upon any termination of this Agreement before the
end of any month, the fee for such part of a month shall be prorated according
to the proportion which such period bears to the full monthly period and shall
be payable upon the date of termination of this Agreement.

     For the purpose of determining fees payable to the Sub-Administrator, the
value of the net assets of a particular Fund shall be computed in the manner
described in the Trust's Declaration of Trust or in the prospectus or Statement
of Additional Information respecting the Fund as from time to time in effect for
the computation of the value of such net assets in connection with the
determination of the liquidating value of the shares of such Fund.

     3. Effective Date. This Agreement shall become effective with respect to a
Fund as of the date first written above (or, if a particular Fund is not in
existence on that date, on the date specified in the amendment to Schedule A to
this Agreement relating to such Fund or, if no date is specified, the date on
which such amendment is executed).

     4. Term. This Agreement shall continue in effect with respect to a Fund,
unless earlier terminated by either party hereto as provided hereunder, until
August 1, 1999, and thereafter shall be renewed automatically for successive
one-year terms unless written notice not to renew is given by the non-renewing
party to the other party at least 60 days prior to the expiration of the then-
current term; provided, however, that after such termination for so long as the
Sub-Administrator, with the written consent of the Administrator, in fact
continues to perform any one or more of the services contemplated by this
Agreement or any schedule or exhibit hereto, the provisions of this Agreement,
including without limitation the provisions dealing with indemnification, shall
continue in full force and effect. This Agreement will also terminate with the
termination of the Administrative Services Agreement, provided the Administrator
promptly notifies the Sub-Administrator of such termination. Either party to
this Agreement may terminate such Agreement prior to the expiration of the
initial term set forth above by providing the other party with written notice of
such termination at least 60 days prior to the date upon which such termination
shall become effective. Compensation due the Sub-Administrator and unpaid by the
Administrator upon such termination shall be immediately due and payable upon
and notwithstanding such termination. The Sub-Administrator shall be entitled to
collect from the Administrator, in addition to the compensation described under
paragraph 2 hereof, the amount of all the Sub-Administrator's cash disbursements
for services in 


                                       2
<PAGE>   4
connection with the Sub-Administrator's activities in effecting such
termination, including without limitation, the delivery to the Administrator,
the Trust, and/or their respective designees, of the Trust's property, records,
instruments and documents, or any copies thereof. Subsequent to such termination
for a reasonable fee to be paid by the Administrator, the Sub-Administrator will
provide the Administrator, and or the Trust with reasonable access to any Trust
documents or records remaining in its possession.

     5. Standard of Care; Reliance on Records and Instructions; Indemnification.
The Sub-Administrator shall use its best efforts to ensure the accuracy of all
services performed under this Agreement, but shall not be liable to the
Administrator or the Trust for any action taken or omitted by the
Sub-Administrator in the absence of bad faith, willful misfeasance, negligence
or from reckless disregard by it of its obligations and duties. The
Administrator agrees to indemnify and hold harmless the Sub-Administrator, its
employees, agents, directors, officers and nominees from and against any and all
claims, demands, actions and suits (collectively "Claims"), whether groundless
or otherwise, and from and against any and all judgements, liabilities, losses,
damages, costs, charges, counsel fees and other expenses of every nature and
character (collectively, "Losses") arising out of or in any way relating to the
Sub-Administrator's actions taken or inactions with respect to the performance
of services under this Agreement with respect to a Fund or based upon reasonable
reliance on information, records, instructions or requests with respect to such
Fund given or made to the Sub-Administrator by a duly authorized representative
of the Administrator, unless such Claims and Losses result from the bad faith,
willful misfeasance, negligence or from the reckless disregard of the
Sub-Administrator of its obligations and duties.

     The Sub-Administrator agrees to indemnity and hold harmless the
Administrator, its employees, agents, directors, officers and nominees from and
against any and all claims, demands, actions and suits, whether groundless or
otherwise, and from and against any and all judgements, liabilities, losses,
damages, costs, charges, counsel fees and other expenses of every nature and
character arising out of or in any way relating to the Sub-Administrator's bad
faith, willful misfeasance, negligence or from reckless disregard by it of its
obligations and duties, with respect to the performance of services under this
Agreement.

     6. Record Retention and Confidentiality. The Sub-Administrator shall keep
and maintain on behalf of the Trust all books and records that the Trust and the
Sub-Administrator are, or may be, required to keep and maintain in connection
with the services to be provided hereunder pursuant to any applicable statutes,
rules and regulations, including without limitation Rules 31a-1 and 31a-2 under
the Investment Company Act of 1940, as amended. The Sub-Administrator further
agrees that all such books and records shall be the property of the Trust and to
make such books and records available for inspection by the Trust, by the
Administrator, or by the Securities and Exchange Commission at reasonable times
and otherwise to keep confidential all books and records and other information
relative to the Trust and its shareholders; except when requested to divulge
such information by duly-constituted authorities or court process.

     7. Uncontrollable Events. The Sub-Administrator assumes no responsibility
hereunder, and shall not be liable, for any damage, loss of data, delay or any
other loss whatsoever caused by events beyond its reasonable control.


                                       3
<PAGE>   5
     8. Rights of Ownership. All computer programs and procedures developed to
perform the services to be provided by the Sub-Administrator under this
Agreement are the property of the Sub-Administrator. All records and other data
except such computer programs and procedures are the exclusive property of the
Trust and all such other records and data will be furnished to the Administrator
and/or the Trust in appropriate form as soon as practicable after termination of
this Agreement for any reason.

     9. Return of Records. The Sub-Administrator may at its option at any time,
and shall promptly upon the demand of the Administrator and/or the Trust, turn
over to the Administrator and/or the Trust and cease to retain the
Sub-Administrator's files, records and documents created and maintained by the
Sub-Administrator pursuant to this Agreement which are no longer needed by the
Sub-Administrator in the performance of its services or for its legal
protection. If not so turned over to the Administrator and/or the Trust, such
documents and records will be retained by the Sub-Administrator for six years
from the year of creation. At the end of such six-year period, such records and
documents will be turned over to the Administrator and/or the Trust unless the
Trust authorizes in writing the destruction of such records and documents.

     10. Notices. Any notice provided hereunder shall be sufficiently given when
sent by registered or certified mail to the address set forth above, or at such
other address as either party may from time to time specify in writing to the
other party pursuant to this Section.

     11. Headings. Paragraph headings in this Agreement are included for
convenience only and are not to be used to construe or interpret this Agreement.

     12. Assignment. This agreement and the rights and duties hereunder shall
not be assignable with respect to a Fund by either of the parties hereto except
by the specific written consent of the other party and with the specific written
consent of the Trust.

     13. Governing Law. This Agreement shall be governed by and provisions shall
be construed in accordance with the laws of The State of Ohio.


     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed all as of the day and year first above written.

NATIONWIDE ADVISORY                          BANC ONE INVESTMENT ADVISORS
SERVICES, INC.                               CORPORATION

By:____________________________              By:____________________________

Title:_________________________              Title:_________________________

Date:__________________________              Date:__________________________


                                       4
<PAGE>   6
                                   SCHEDULE A
                       TO THE SUB-ADMINISTRATION AGREEMENT
                                     BETWEEN
                    BANC ONE INVESTMENT ADVISORS CORPORATION
                                       AND
                       NATIONWIDE ADVISORY SERVICES, INC.


NAME OF THE FUND
One Group Investment Trust Bond Portfolio 
One Group Investment Trust Government Bond Portfolio 
One Group Investment Trust Balanced Portfolio 
One Group Investment Trust Large Cap Growth Portfolio 
One Group Investment Trust Equity Index Portfolio 
One Group Investment Trust Diversified Equity Portfolio 
One Group Investment Trust Mid Cap Growth Portfolio 
One Group Investment Trust Diversified Mid Cap Portfolio 
One Group Investment Trust Mid Cap Value Portfolio


BANC ONE INVESTMENT ADVISORS CORPORATION    NATIONWIDE ADVISORY SERVICES, INC.

By:____________________________             By:____________________________

Title:_________________________             Title:_________________________

Date:__________________________             Date:__________________________


                                       5

<PAGE>   1
                                Exhibit 23(h)(6)
       Form of Amendment to Exhibit A to Securities Lending Agreement for
               One Group Investment Trust between the Registrant,
                 Banc One Investment Advisors Corporation, and
                          Banc One Trust Company, N.A.
<PAGE>   2
                                    EXHIBIT A
                                  LIST OF FUNDS
                               FEBRUARY ___, 1999

One Group Investment Trust Bond Portfolio 
One Group Investment Trust Government Bond Portfolio 
One Group Investment Trust Balanced Portfolio
One Group Investment Trust Large Cap Growth Portfolio 
One Group Investment Trust Equity Index Portfolio 
One Group Investment Trust Diversified Equity Portfolio
One Group Investment Trust Mid Cap Growth Portfolio 
One Group Investment Trust Diversified Mid Cap Portfolio 
One Group Investment Trust Mid Cap Value Portfolio


One Group Investment Trust
   ("Lender")


By:_____________________________________________________
   James F. Laird, Jr., President and Treasurer



Banc One Investment Advisors Corporation
("Advisor")


By:_____________________________________________________
   Mark A. Beeson, Senior Managing Director



Bank One Trust Company, N.A.
("Subcustodian")



By:_____________________________________________________
   Steven E. Cutler, Officer


                                       1

<PAGE>   1
                                 Exhibit 23(i)
                            OPINION OF ROPES & GRAY
<PAGE>   2
                                  Ropes & Gray
                              One Franklin Square
                              1301 K Street, N.W.
                           Washington, DC 20005-3333
                                 (202) 626-3900
                              Fax: (202) 626-3961

                                                                  March 25, 1999

One Group(R)  Investment Trust
One Nationwide Plaza
Columbus, Ohio  43215

Ladies and Gentlemen:

         You have informed us that you intend to file a Rule 485(b)
Post-Effective Amendment to your Registration Statement under the Investment
Company Act of 1940, as amended, with the Securities and Exchange Commission
(the "Commission") for the purpose of updating the Trust's financial
information.

         We have examined your Amended and Restated Agreement and Declaration of
Trust, as further amended, as on file at the office of the Secretary of The
Commonwealth of Massachusetts. We are familiar with the actions taken by your
Trustees to authorize the issue and sale from time to time of your units of
beneficial interest ("Shares") at not less than the public offering price of
such shares and have assumed that the Shares have been issued and sold in
accordance with such action. We have also examined a copy of your Code of
Regulations and such other documents as we have deemed necessary for the
purposes of this opinion.

         Based on the foregoing, we are of the opinion that the Shares being
registered have been duly authorized and when sold will be legally issued, fully
paid and non-assessable.

         The Trust is an entity of the type commonly known as a "Massachusetts
business trust." Under Massachusetts law, shareholders could, under certain
circumstances, be held personally liable for the obligations of the Trust.
However, the Declaration of Trust disclaims shareholder liability for acts or
obligations of the Trust and requires that notice of such disclaimer be given in
each agreement, obligation or instrument entered into or executed by the Trust
or its Trustees. The Declaration of Trust provides for indemnification out of
the property of the Trust for all loss and expense of any shareholder of the
Trust held personally liable solely by reason of his being or having been a
shareholder. Thus, the risk of a share-
<PAGE>   3
One Group(R) Investment Trust
March 25, 1999
Page 2


holder incurring financial loss on account of being a shareholder is limited to
circumstances in which the Trust itself would be unable to meet its obligations.

         We consent to this opinion accompanying the Post-Effective Amendment
No. 11 when filed with the Commission.

                                                     Very truly yours,

                                                     /s/ Ropes & Gray

                                                     Ropes & Gray


<PAGE>   1
                                Exhibit 23(j)(i)
                            CONSENT OF ROPES & GRAY
<PAGE>   2
                               CONSENT OF COUNSEL

         We hereby consent to the use of our name and to the reference to our
firm under the caption "Legal Counsel" included in or made a part of
Post-Effective Amendment No. 11 to the Registration Statement of the One
Group(R) Investment Trust on Form N-1A (Nos. 33-66080 and 811-7874) under the
Securities Act of 1933, as amended.

                                                              /s/ Ropes & Gray
                                                              ROPES & GRAY

Washington, D.C.
March 25, 1999


<PAGE>   1
                                Exhibit 23(j)(2)
                      Consent of PricewaterhouseCoopers LLP

<PAGE>   2
   
    

                       CONSENT OF INDEPENDENT ACCOUNTANTS

   
We hereby consent to the inclusion in the Statement of Additional Information
constituting part of this Post-Effective Amendment No.11 to the registration
statement on Form N-1A (the "Registration Statement") of our report dated
February 17, 1999, relating to the financial statements and financial highlights
appearing in the December 31, 1998 Annual Report to Shareholders of The One
Group Investment Trust, which is included in the Registration Statement. We also
consent to the reference to us under the heading "Experts" in such Statement of
Additional Information.
    



                                            /s/ PricewaterhouseCoopers LLP
                                            ------------------------------
                                            PricewaterhouseCoopers LLP

Columbus, Ohio
March 24, 1999



<PAGE>   1
                                Exhibit 23(j)(3)
                         Consent of Arthur Andersen LLP

<PAGE>   2

   
    



CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the use of our report
dated February 12,1999, and to all references to our Firm included in or made a
part of this Post Effective Amendment No. 11 to the One Group Investment Trust's
registration statement on Form N-1A under the Securities Act of 1933.


   
                                              /s/ Arthur Andersen LLP
    

Detroit, Michigan,
March 22, 1999.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000909221
<NAME> ONE GROUP INVESTMENT TRUST
<SERIES>
   <NUMBER> 1
   <NAME> GOVERNMENT BOND FUND
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                           42,112
<INVESTMENTS-AT-VALUE>                          42,935
<RECEIVABLES>                                      290
<ASSETS-OTHER>                                       1
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                  43,227
<PAYABLE-FOR-SECURITIES>                         1,019
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           21
<TOTAL-LIABILITIES>                              1,040
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        41,362
<SHARES-COMMON-STOCK>                            3,964
<SHARES-COMMON-PRIOR>                            2,134
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              2
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                           823
<NET-ASSETS>                                    42,187
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                1,936
<OTHER-INCOME>                                       2
<EXPENSES-NET>                                     230
<NET-INVESTMENT-INCOME>                          1,708
<REALIZED-GAINS-CURRENT>                           141
<APPREC-INCREASE-CURRENT>                          256
<NET-CHANGE-FROM-OPS>                            2,105
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        1,742
<DISTRIBUTIONS-OF-GAINS>                           105
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          1,866
<NUMBER-OF-SHARES-REDEEMED>                        210
<SHARES-REINVESTED>                                174
<NET-CHANGE-IN-ASSETS>                          19,823
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              138
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    240
<AVERAGE-NET-ASSETS>                            30,733
<PER-SHARE-NAV-BEGIN>                            10.48
<PER-SHARE-NII>                                    .56
<PER-SHARE-GAIN-APPREC>                            .20
<PER-SHARE-DIVIDEND>                               .57
<PER-SHARE-DISTRIBUTIONS>                          .03
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.61
<EXPENSE-RATIO>                                    .75
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000909221
<NAME> ONE GROUP INVESTMENT TRUST
<SERIES>
   <NUMBER> 2
   <NAME> ASSET ALLOCATION FUND
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                           92,353
<INVESTMENTS-AT-VALUE>                         103,692
<RECEIVABLES>                                      579
<ASSETS-OTHER>                                       3
<OTHER-ITEMS-ASSETS>                                 2
<TOTAL-ASSETS>                                 104,276
<PAYABLE-FOR-SECURITIES>                         1,353
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           78
<TOTAL-LIABILITIES>                              1,431
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        91,111
<SHARES-COMMON-STOCK>                            6,792
<SHARES-COMMON-PRIOR>                            3,142
<ACCUMULATED-NII-CURRENT>                           28
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            367
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        11,339
<NET-ASSETS>                                   102,845
<DIVIDEND-INCOME>                                  457
<INTEREST-INCOME>                                2,111
<OTHER-INCOME>                                       9
<EXPENSES-NET>                                     704
<NET-INVESTMENT-INCOME>                          1,873
<REALIZED-GAINS-CURRENT>                         1,661
<APPREC-INCREASE-CURRENT>                        8,917
<NET-CHANGE-FROM-OPS>                           12,451
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        1,900
<DISTRIBUTIONS-OF-GAINS>                         1,266
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          3,511
<NUMBER-OF-SHARES-REDEEMED>                         76
<SHARES-REINVESTED>                                215
<NET-CHANGE-IN-ASSETS>                          61,399
<ACCUMULATED-NII-PRIOR>                          1,870
<ACCUMULATED-GAINS-PRIOR>                       25,093
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              493
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    707
<AVERAGE-NET-ASSETS>                            70,447
<PER-SHARE-NAV-BEGIN>                            13.19
<PER-SHARE-NII>                                    .39
<PER-SHARE-GAIN-APPREC>                           2.14
<PER-SHARE-DIVIDEND>                               .39
<PER-SHARE-DISTRIBUTIONS>                          .19
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              15.14
<EXPENSE-RATIO>                                    1.0
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000909221
<NAME> ONE GROUP INVESTMENT TRUST
<SERIES>
   <NUMBER> 3
   <NAME> GROWTH OPPORTUNITIES FUND
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                           77,798
<INVESTMENTS-AT-VALUE>                         101,360
<RECEIVABLES>                                       44
<ASSETS-OTHER>                                       3
<OTHER-ITEMS-ASSETS>                                 3
<TOTAL-ASSETS>                                 101,410
<PAYABLE-FOR-SECURITIES>                         8,671
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           65
<TOTAL-LIABILITIES>                              8,736
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        69,408
<SHARES-COMMON-STOCK>                            5,003 
<SHARES-COMMON-PRIOR>                            3,570
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                           297
<ACCUM-APPREC-OR-DEPREC>                        23,563
<NET-ASSETS>                                    92,674
<DIVIDEND-INCOME>                                  332
<INTEREST-INCOME>                                  131
<OTHER-INCOME>                                      12
<EXPENSES-NET>                                     642
<NET-INVESTMENT-INCOME>                          (167)
<REALIZED-GAINS-CURRENT>                         4,627
<APPREC-INCREASE-CURRENT>                       19,581
<NET-CHANGE-FROM-OPS>                           24,041
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                         4,432
<DISTRIBUTIONS-OTHER>                            1,003
<NUMBER-OF-SHARES-SOLD>                          1,240
<NUMBER-OF-SHARES-REDEEMED>                        113
<SHARES-REINVESTED>                                306
<NET-CHANGE-IN-ASSETS>                          41,967
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                         327
<GROSS-ADVISORY-FEES>                              432
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    642
<AVERAGE-NET-ASSETS>                            66,415
<PER-SHARE-NAV-BEGIN>                            14.21
<PER-SHARE-NII>                                  (.03)
<PER-SHARE-GAIN-APPREC>                           5.95
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                         1.41
<RETURNS-OF-CAPITAL>                               .20
<PER-SHARE-NAV-END>                              18.52
<EXPENSE-RATIO>                                    .97
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000909221
<NAME> ONE GROUP INVESTMENT TRUST
<SERIES>
   <NUMBER> 4
   <NAME> LARGE COMPANY FUND        
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                          149,330
<INVESTMENTS-AT-VALUE>                         205,313
<RECEIVABLES>                                      187
<ASSETS-OTHER>                                       7
<OTHER-ITEMS-ASSETS>                                 2
<TOTAL-ASSETS>                                 205,509
<PAYABLE-FOR-SECURITIES>                         3,331
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          143
<TOTAL-LIABILITIES>                              3,474
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       146,108
<SHARES-COMMON-STOCK>                            8,929 
<SHARES-COMMON-PRIOR>                            5,790
<ACCUMULATED-NII-CURRENT>                            1
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                            57
<ACCUM-APPREC-OR-DEPREC>                        55,983
<NET-ASSETS>                                   202,035
<DIVIDEND-INCOME>                                1,402
<INTEREST-INCOME>                                  424
<OTHER-INCOME>                                       3
<EXPENSES-NET>                                   1,363
<NET-INVESTMENT-INCOME>                            466
<REALIZED-GAINS-CURRENT>                        13,358
<APPREC-INCREASE-CURRENT>                       37,840
<NET-CHANGE-FROM-OPS>                           51,664
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                          465
<DISTRIBUTIONS-OF-GAINS>                        13,400
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          2,584
<NUMBER-OF-SHARES-REDEEMED>                         59
<SHARES-REINVESTED>                                614
<NET-CHANGE-IN-ASSETS>                         102,407
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                          15
<GROSS-ADVISORY-FEES>                              948
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  1,363
<AVERAGE-NET-ASSETS>                           145,863
<PER-SHARE-NAV-BEGIN>                            17.21
<PER-SHARE-NII>                                    .06
<PER-SHARE-GAIN-APPREC>                           7.03
<PER-SHARE-DIVIDEND>                               .06
<PER-SHARE-DISTRIBUTIONS>                         1.61
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              22.63
<EXPENSE-RATIO>                                    .93
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000909221
<NAME> ONE GROUP INVESTMENT TRUST
<SERIES>
   <NUMBER> 5
   <NAME> EQUITY INDEX FUND         
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   8-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               DEC-31-1998
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                           13,206
<INVESTMENTS-AT-VALUE>                          14,563
<RECEIVABLES>                                       95
<ASSETS-OTHER>                                       1
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  14,659
<PAYABLE-FOR-SECURITIES>                           156
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           22
<TOTAL-LIABILITIES>                                178
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        13,177
<SHARES-COMMON-STOCK>                            1,320 
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                            53
<ACCUM-APPREC-OR-DEPREC>                         1,357
<NET-ASSETS>                                    14,481
<DIVIDEND-INCOME>                                   68
<INTEREST-INCOME>                                   35
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                      28
<NET-INVESTMENT-INCOME>                             75
<REALIZED-GAINS-CURRENT>                          (53)
<APPREC-INCREASE-CURRENT>                        1,357
<NET-CHANGE-FROM-OPS>                            1,379
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                           75
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          1,370
<NUMBER-OF-SHARES-REDEEMED>                         57
<SHARES-REINVESTED>                                  7
<NET-CHANGE-IN-ASSETS>                          14,481
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               15
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     58
<AVERAGE-NET-ASSETS>                             7,664
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                    .08
<PER-SHARE-GAIN-APPREC>                            .97
<PER-SHARE-DIVIDEND>                               .08
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.97
<EXPENSE-RATIO>                                    .55
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000932736
<NAME> THE PEGASUS PATHMAKER VARIABLE ANNUITY FUND
<SERIES>
   <NUMBER> 2
   <NAME> PEGASUS GROWTH & VALUE FUND
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                           50,284
<INVESTMENTS-AT-VALUE>                          59,260
<RECEIVABLES>                                      304
<ASSETS-OTHER>                                       4
<OTHER-ITEMS-ASSETS>                                57
<TOTAL-ASSETS>                                  59,625
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           65
<TOTAL-LIABILITIES>                                 65
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        50,276
<SHARES-COMMON-STOCK>                            3,345
<SHARES-COMMON-PRIOR>                            2,386
<ACCUMULATED-NII-CURRENT>                            1
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            307
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         8,976
<NET-ASSETS>                                    59,560
<DIVIDEND-INCOME>                                  675
<INTEREST-INCOME>                                  133
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     469
<NET-INVESTMENT-INCOME>                            339
<REALIZED-GAINS-CURRENT>                         1,445
<APPREC-INCREASE-CURRENT>                        4,451
<NET-CHANGE-FROM-OPS>                            6,235
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (356)
<DISTRIBUTIONS-OF-GAINS>                       (1,328)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            955
<NUMBER-OF-SHARES-REDEEMED>                       (97)
<SHARES-REINVESTED>                                102
<NET-CHANGE-IN-ASSETS>                          16,305
<ACCUMULATED-NII-PRIOR>                             18
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<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    502
<AVERAGE-NET-ASSETS>                            58,015
<PER-SHARE-NAV-BEGIN>                            16.22
<PER-SHARE-NII>                                    .11
<PER-SHARE-GAIN-APPREC>                           2.00
<PER-SHARE-DIVIDEND>                             (.12)
<PER-SHARE-DISTRIBUTIONS>                        (.41)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              17.80
<EXPENSE-RATIO>                                    .95
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000932736
<NAME> THE PEGASUS PATHMAKER VARIABLE ANNUITY FUND
<SERIES>
   <NUMBER> 3
   <NAME> MID-CAP OPPORTUNITY FUND
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<EXCHANGE-RATE>                                      1
<INVESTMENTS-AT-COST>                           15,373
<INVESTMENTS-AT-VALUE>                          18,083
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<TOTAL-ASSETS>                                  18,204
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<DIVIDEND-INCOME>                                   97
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<NET-INVESTMENT-INCOME>                           (14)
<REALIZED-GAINS-CURRENT>                           312
<APPREC-INCREASE-CURRENT>                          551
<NET-CHANGE-FROM-OPS>                              849
<EQUALIZATION>                                       0
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<DISTRIBUTIONS-OF-GAINS>                         (356)
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<GROSS-EXPENSE>                                    222
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<PER-SHARE-NAV-BEGIN>                            14.38
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                            .70
<PER-SHARE-DIVIDEND>                               .00
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<EXPENSE-RATIO>                                    .95
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000932736
<NAME> THE PEGASUS PATHMAKER VARIABLE ANNUITY FUND
<SERIES>
   <NUMBER> 6
   <NAME> PEGASUS INTRINSIC VALUE FUND
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
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<EXCHANGE-RATE>                                      1
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<DISTRIBUTIONS-OF-GAINS>                         (447)
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<NET-CHANGE-IN-ASSETS>                           8,576
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<PER-SHARE-NAV-BEGIN>                            11.53
<PER-SHARE-NII>                                    .21
<PER-SHARE-GAIN-APPREC>                          (.58)
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<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.70
<EXPENSE-RATIO>                                    .95
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000932736
<NAME> THE PEGASUS PATHMAKER VARIABLE ANNUITY FUND
<SERIES>
   <NUMBER> 7
   <NAME> PEGASUS BOND FUND
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
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<EXCHANGE-RATE>                                      1
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<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
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<SHARES-COMMON-STOCK>                            5,677
<SHARES-COMMON-PRIOR>                            3,279
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<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                          (12)
<ACCUM-APPREC-OR-DEPREC>                         2,304
<NET-ASSETS>                                    60,892
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                2,920
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     358
<NET-INVESTMENT-INCOME>                          2,562
<REALIZED-GAINS-CURRENT>                            45
<APPREC-INCREASE-CURRENT>                        1,451
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<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (2,606)
<DISTRIBUTIONS-OF-GAINS>                          (57)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          2,630
<NUMBER-OF-SHARES-REDEEMED>                      (502)
<SHARES-REINVESTED>                                270
<NET-CHANGE-IN-ASSETS>                          26,662
<ACCUMULATED-NII-PRIOR>                              6
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              191
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    385
<AVERAGE-NET-ASSETS>                            55,444
<PER-SHARE-NAV-BEGIN>                            10.44
<PER-SHARE-NII>                                    .57
<PER-SHARE-GAIN-APPREC>                            .31
<PER-SHARE-DIVIDEND>                             (.58)
<PER-SHARE-DISTRIBUTIONS>                        (.01)
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.73
<EXPENSE-RATIO>                                    .75
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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