SECURITY INCOME FUND /KS/
N-14, 2000-03-03
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<PAGE>
                                                Securities Act File No.

      As filed with the Securities and Exchange Commission on March 3, 2000

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


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM N-14


             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                          Pre-Effective Amendment No.
                          Post-Effective Amendment No.


                 SECURITY INCOME FUND, DIVERSIFIED INCOME SERIES
               (Exact Name of Registrant as Specified in Charter)


                  700 SW Harrison Street, Topeka, Kansas 66636
               (Address of Principal Executive Offices) (Zip Code)

                                 (785) 431-3000
                  (Registrant's Area Code and Telephone Number)


                                   Amy J. Lee
                        Security Management Company, LLC
                             700 SW Harrison Street
                              Topeka, Kansas 66636
                     (Name and Address of Agent for Service)


Approximate Date of Proposed Public Offering:  As soon as practicable after this
Registration Statement becomes effective.

It is proposed that this filing will become  effective on April 3, 2000 pursuant
to Rule 488 under the Securities Act of 1933.

No filing fee is required because an indefinite number of shares have previously
been registered pursuant to Rule 24f-2 under the Investment Company Act of 1940,
as amended.

<PAGE>
             Corporate Bond Fund, and Limited Maturity Bond Fund, of
                              Security Income Fund
                             700 SW Harrison Street
                                Topeka, KS 66636
                                 (800) 888-2461

                                 April __, 2000


Dear Shareholder:

Your Board of  Directors  has called a Special  Meeting of  Shareholders  of the
Corporate Bond Fund, and Limited Maturity Bond Fund, of Security Income Fund, to
be held at 9:30 a.m.,  local  time,  on April 26,  2000,  at the  offices of the
Funds, Security Benefit Group Building,  700 SW Harrison Street,  Topeka, Kansas
66636.

The Board of Directors of Security Income Fund has approved a reorganization  of
each of the  Corporate  Bond  Fund and  Limited  Maturity  Bond  Fund,  into the
Diversified  Income Fund of Security  Income Fund,  which is managed by Security
Management  Company,  LLC and is part of the Security Group of Mutual Funds (the
"Reorganization").  The  Diversified  Income  Fund of  Security  Income Fund has
investment objectives and policies that are similar in many respects to those of
the Corporate  Bond Fund,  and Limited  Maturity  Bond Fund, of Security  Income
Fund. The  Reorganization  is expected to result in operating  expenses that are
lower for shareholders.

You are asked to vote to  approve  a Plan of  Reorganization.  The  accompanying
document  describes  the  proposed  transaction  and  compares  the policies and
expenses of each of the Funds for your evaluation.

After  careful  consideration,  the Board of Directors  of Security  Income Fund
unanimously  approved this  proposal with respect to each of its Corporate  Bond
Fund and Limited Maturity Bond Fund and recommended that shareholders of each of
those Funds vote "FOR" the proposal.

A Proxy  Statement/Prospectus  that describes the Reorganization is enclosed. We
urge you to vote your shares by completing  and returning the enclosed  proxy in
the  envelope  provided,  or vote by Internet  or  telephone,  at your  earliest
convenience.

YOUR VOTE IS IMPORTANT  REGARDLESS  OF THE NUMBER OF SHARES YOU OWN. IN ORDER TO
AVOID THE ADDED  COST OF  FOLLOW-UP  SOLICITATIONS  AND  POSSIBLE  ADJOURNMENTS,
PLEASE TAKE A FEW MINUTES TO READ THE PROXY  STATEMENT/PROSPECTUS  AND CAST YOUR
VOTE. IT IS IMPORTANT THAT YOUR VOTE BE RECEIVED NO LATER THAN APRIL 25, 2000.

The Funds are using Shareholder Communications Corporation, a professional proxy
solicitation firm, to assist  shareholders in the voting process. As the date of
the meeting approaches, if we have not already heard from you, you may receive a
telephone  call from  Shareholder  Communications  Corporation  reminding you to
exercise your right to vote.

We appreciate  your  participation  and prompt response in this matter and thank
you for your continued support.

                                                                Sincerely,


                                                                James R. Schmank
                                                                President
<PAGE>
             Corporate Bond Fund, and Limited Maturity Bond Fund, of
                              Security Income Fund
                             700 SW Harrison Street
                                Topeka, KS 66636
                                 (800) 888-2461


                  NOTICE OF SPECIAL MEETINGS OF SHAREHOLDERS OF
              CORPORATE BOND FUND, AND LIMITED MATURITY BOND FUND,
                             OF SECURITY INCOME FUND
                          TO BE HELD ON APRIL 26, 2000


To the Shareholders:


Special  Meeting of  Shareholders  of the  Corporate  Bond Fund and the  Limited
Maturity  Bond Fund of  Security  Income  Fund will be held on April 26, 2000 at
9:30 a.m., local time, at the Security  Benefit Group Building,  700 SW Harrison
Street, Topeka, Kansas 66636.

The  purposes  of the  Special  Meeting of the  Corporate  Bond Fund of Security
Income Fund are as follows:

1.  To approve a Plan of Reorganization  providing for the acquisition of all of
    the assets and  liabilities  of the Corporate  Bond Fund by the  Diversified
    Income  Fund of Security  Income  Fund solely in exchange  for shares of the
    Diversified  Income  Fund,  followed  by  the  complete  liquidation  of the
    Corporate Bond Fund; and

2.  To  transact  such other  business as may  properly  come before the Special
    Meeting of Shareholders or any adjournments thereof.

The  purposes  of the  Special  Meeting  of the  Limited  Maturity  Bond Fund of
Security Income Fund are as follows:

1.  To approve a Plan of Reorganization  providing for the acquisition of all of
    the  assets  and  liabilities  of the  Limited  Maturity  Bond  Fund  by the
    Diversified  Income  Fund of Security  Income  Fund  solely in exchange  for
    shares of the Diversified Income Fund, followed by the complete  liquidation
    of the Limited Maturity Bond Fund; and

2.  To  transact  such other  business as may  properly  come before the Special
    Meeting of Shareholders or any adjournment thereof.

Shareholders  of  record at the  close of  business  on  February  28,  2000 are
entitled to notice of, and to vote at, their respective meetings. Your attention
is called to the accompanying Proxy Statement/Prospectus.  Regardless of whether
you plan to attend your meeting,  PLEASE COMPLETE,  SIGN AND RETURN PROMPTLY THE
ENCLOSED  PROXY CARD OR VOTE BY  TELEPHONE  OR INTERNET so that a quorum will be
present and a maximum number of shares may be voted.  If you are present at your
meeting, you may change your vote, if desired, at that time.


                                              By Order of the Board of Directors

                                              Amy J. Lee,
                                              Secretary

April __, 2000
<PAGE>
                                TABLE OF CONTENTS


INTRODUCTION...............................................................    5

SUMMARY....................................................................    6
   The Proposed Reorganization.............................................    6
   Purchase, Redemption, and Exchange Information..........................    7
   Federal Income Tax Consequences of the Reorganization...................    7

INVESTMENT OBJECTIVES AND POLICIES.........................................    8
   Comparison of Objectives and Primary Investment Strategies..............    8
   Comparison of Portfolio Characteristics.................................    9
   Relative Performance....................................................   10
   Comparisons of Risks Involved in Investing in the Funds.................   11
   Comparisons of Securities and Investment Techniques.....................   12

COMPARISON OF FEES AND EXPENSES............................................   14
   Operating Expenses......................................................   14
   Expense Limitation Arrangements.........................................   14
   General Information.....................................................   17

ADDITIONAL INFORMATION ABOUT DIVERSIFIED INCOME FUND.......................   17
   Investment Manager......................................................   17
   Investment Personnel....................................................   17
   Performance of Diversified Income Fund..................................   18

INFORMATION ABOUT THE REORGANIZATION.......................................   19
   The Reorganization Plan.................................................   19
   Reasons for the Reorganization..........................................   19
   Board Consideration.....................................................   20
   Tax Considerations......................................................   20
   Expenses of the Reorganization..........................................   20

ADDITIONAL INFORMATION ABOUT THE FUNDS.....................................   20
   Form of Organization....................................................   20
   Dividends and Other Distributions.......................................   21

GENERAL INFORMATION ABOUT THE PROXY STATEMENT..............................   21
   Solicitation of Proxies.................................................   21
   Voting Rights...........................................................   21
   Other Matters to Come Before the Special Meeting........................   22
   Shareholder Proposals...................................................   22
   Reports to Shareholders.................................................   22

APPENDIX A.................................................................   24

APPENDIX B.................................................................   34

APPENDIX C.................................................................   44

APPENDIX D.................................................................   45
<PAGE>
                           PROXY STATEMENT/PROSPECTUS

                              SECURITY INCOME FUND
                             700 SW HARRISON STREET
                              TOPEKA, KANSAS 66636
                                 (800) 888-2461

                  SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON
                                 APRIL 26, 2000

              CORPORATE BOND FUND, AND LIMITED MATURITY BOND FUND,
                             OF SECURITY INCOME FUND

                       relating to the reorganization into

                 DIVERSIFIED INCOME FUND OF SECURITY INCOME FUND

                           (COLLECTIVELY, THE "FUNDS")

INTRODUCTION

This Proxy Statement/Prospectus provides you with information about the proposed
transactions.  The  transactions  involve the  transfer of all of the assets and
liabilities of Corporate Bond Fund  ("Corporate Bond Fund") and Limited Maturity
Bond  Fund   ("Limited   Maturity  Bond  Fund")  to   Diversified   Income  Fund
("Diversified  Income  Fund") of Security  Income  Fund  solely in exchange  for
shares of  Diversified  Income Fund (the  "Reorganization").  The Corporate Bond
Fund and/or Limited Maturity Bond Fund would then distribute to you your portion
of the shares of Diversified Income Fund it received in the Reorganization.  The
result would be a liquidation of Corporate  Bond Fund and Limited  Maturity Bond
Fund.  You  would  receive  shares  of the  Diversified  Income  Fund  having an
aggregate  value equal to the  aggregate  value of the shares of Corporate  Bond
Fund and/or  Limited  Maturity Bond Fund held by you as of the close of business
on the business day preceding the closing of the  Reorganization.  You are being
asked to vote on the Plan of  Reorganization  through  which these  transactions
would be accomplished.

Because you, as a shareholder  of Corporate  Bond Fund and/or  Limited  Maturity
Bond Fund are being  asked to  approve a  transaction  that will  result in your
holding shares of Diversified Income Fund, this Proxy Statement also serves as a
Prospectus for Diversified Income Fund.

This Proxy  Statement/Prospectus,  which you should retain for future reference,
contains  important  information about  Diversified  Income Fund that you should
know  before  investing.  For a  more  detailed  discussion  of  the  investment
objectives,  policies,  restrictions  and  risks of each of the  Funds,  see the
Prospectus  (the  "Security  Income  Fund  Prospectus")  and  the  Statement  of
Additional  Information  for each of the Funds dated dated  April 30,  1999,  as
supplemented  November 1, 1999 and  February  7,,  2000,  which may be obtained,
without  charge,  by calling  (800)  888-2461.  Each of the Funds also  provides
periodic  reports  to  its  shareholders,   which  highlight  certain  important
information  about  the  Funds,   including  investment  results  and  financial
information.  The annual  report  for the Funds  dated  December  31,  1999,  is
included herewith and is incorporated herein by reference to the Security Income
Fund's annual report filed on Form N-30D for the period ended December 31, 1999,
Registration No. 2-38414 (filed February 28, 2000).

You may also obtain  proxy  materials,  reports and other  information  filed by
Diversified Income Fund from the SEC's Public Reference Room (1-800-SEC-0330) or
from the SEC's internet website at www.sec.gov.

THE  SECURITIES AND EXCHANGE  COMMISSION  HAS NOT APPROVED OR DISAPPROVED  THESE
SECURITIES,  OR DETERMINED THAT THIS PROXY  STATEMENT/PROSPECTUS  IS TRUTHFUL OR
COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
<PAGE>
SUMMARY

You should read this entire Proxy Statement/Prospectus carefully. For additional
information,  you should  consult the Security  Income Fund  Prospectus  and the
Agreement and Plan of Reorganization, which is attached hereto as Appendix A.

THE  PROPOSED  REORGANIZATION  - On February 4, 2000,  the Board of Directors of
Security  Income  Fund  approved  with  respect  to each of the  Funds a Plan of
Reorganization  (the  "Reorganization  Plan").  Subject to approval of Corporate
Bond Fund shareholders, the Reorganization Plan provides for:

o  the  transfer  of all of the  assets of  Corporate  Bond Fund to  Diversified
   Income Fund, in exchange for shares of Diversified Income Fund;

o  the  assumption  by  Diversified  Income  Fund of all of the  liabilities  of
   Corporate Bond Fund;

o  the distribution of shares of the Diversified Income Fund to the shareholders
   of Corporate Bond Fund; and

o  complete liquidation of Corporate Bond Fund.

Subject  to  approval  of  Limited   Maturity   Bond  Fund   shareholders,   the
Reorganization Plan provides for:

o  the  transfer  of all  of  the  assets  of  Limited  Maturity  Bond  Fund  to
   Diversified Income Fund, in exchange for shares of Diversified Income Fund;

o  the  assumption  by  Diversified  Income  Fund of all of the  liabilities  of
   Limited Maturity Bond;

o  the distribution of shares of the Diversified Income Fund to the shareholders
   of Limited Maturity Bond Fund; and

o  complete liquidation of Limited Maturity Bond Fund.

The  Reorganization  is expected to be effective upon the opening of business on
May 1, 2000, or on a later date as the parties may agree (the  "Closing").  As a
result of the Reorganization,  each shareholder of Class A and Class B shares of
Corporate Bond Fund and Limited Maturity Bond Fund would become a shareholder of
the same Class of shares of  Diversified  Income Fund.  Each  shareholder  would
hold, immediately after the Closing,  shares of each Class of Diversified Income
Fund having an  aggregate  value equal to the  aggregate  value of the shares of
that same Class of Corporate Bond Fund and/or Limited Maturity Bond Fund held by
that  shareholder  as of the close of business on the business day preceding the
Closing.

The  Reorganization  is intended  to  eliminate  duplication  of costs and other
inefficiencies  arising from having  three  substantially  similar  mutual funds
within the same group of funds,  as well as to assist in achieving  economies of
scale.  Shareholders in Corporate Bond and Limited  Maturity Bond Funds (as well
as  those  in  Diversified  Income  Fund)  are  expected  to  benefit  from  the
elimination of this  duplication and from the larger asset base that will result
from the Reorganization.

Approval of the Reorganization  Plan with respect to each of Corporate Bond Fund
and Limited  Maturity Bond Fund requires the  affirmative  vote of a majority of
the outstanding  shares of that Fund. In the event that the shareholders of only
one  of  the  Corporate  Bond  and  Limited  Maturity  Bond  Funds  approve  the
Reorganization,   that   particular   Fund  whose   shareholders   approved  the
Reorganization  would be reorganized into Diversified  Income Fund. The Fund not
approving the Reorganization may continue to operate as a separate entity.

AFTER  CAREFUL  CONSIDERATION,  THE BOARD OF DIRECTORS  OF SECURITY  INCOME FUND
UNANIMOUSLY APPROVED THE PROPOSED REORGANIZATION.  THE BOARD RECOMMENDS THAT YOU
VOTE "FOR" THE PROPOSED REORGANIZATION.

In considering whether to approve the Reorganization, you should note that:

o  Corporate Bond Fund and Limited Maturity Bond Fund have investment objectives
   and policies that are similar in many respects to the  investment  objectives
   and  policies  of  Diversified  Income  Fund.  Corporate  Bond Fund  seeks to
   preserve capital while generating income.  Limited Maturity Bond Fund seeks a
   high level of income consistent with moderate price fluctuation.  Diversified
   Income Fund seeks to provide a high level of interest income with security of
   principal.  Each of the Funds  invests  primarily  in  investment  grade debt
   securities.

o  The proposed  Reorganization  offers actual or potential  reductions in total
   operating expenses for shareholders of each of the Funds. This chart compares
   the  current  operating  expenses,  management  fees,  and  distribution  and
   shareholder service fees of the Funds.

- --------------------------------------------------------------------------------
                         MANAGEMENT      DISTRIBUTION AND           OTHER
                          FEES(1)          SERVICE FEES          EXPENSES(2)
- --------------------------------------------------------------------------------
Class of Shares          All Classes    Class A    Class B    Class A    Class B
Corporate Bond             0.50%         0.25%      1.00%      0.35%      0.65%
Limited Maturity Bond      0.50%         0.25%      1.00%      0.52%      0.91%
Diversified Income         0.35%(3)      0.25%      1.00%      0.62%      0.86%
- --------------------------------------------------------------------------------

(1)  During the year ended December 31, 1999, Security  Management Company,  LLC
     ("Security  Management"),  the investment adviser for each Fund, waived its
     management fee for Limited  Maturity Bond and Diversified  Income Funds and
     reimbursed  certain  operating  expenses  for  Class B  shares  of  Limited
     Maturity  Bond and  Diversified  Income  Fund and  Class A and B shares  of
     Corporate Bond Fund. As a result,  the after waiver or reimbursement  total
     expense  ratios  for  the  Corporate  Bond,   Limited   Maturity  Bond  and
     Diversified  Income Funds,  respectively,  were 1.09%,  0.77% and 0.87% for
     Class A shares and 1.85%, 1.85% and 1.85% for Class B shares.

(2)  Other  Expenses are  expressed as a ratio of expenses to average  daily net
     assets ("expense ratio") based on the one-year period December 31, 1999.

(3)  Effective  February 4, 2000, the management fee for Diversified Income Fund
     was reduced from 0.50% to 0.35%.

(4)  Fees are expressed as an annual rate of average daily net assets.
- --------------------------------------------------------------------------------

This chart shows an estimate of the likely  expenses  after the  Reorganization.
Combining the Funds should lower expenses because of economies of scale realized
from a larger asset base.

- --------------------------------------------------------------------------------
                             MANAGEMENT     DISTRIBUTION AND
                                FEES          SERVICE FEES       OTHER EXPENSES
- --------------------------------------------------------------------------------
Class of Shares              All Classes   Class A   Class B   Class A   Class B
Combined Funds (pro forma)      0.35%       0.25%     1.00%     0.40%     0.40%
- --------------------------------------------------------------------------------

o  A voluntary  expense  waiver  arrangement is in place for each of the Limited
   Maturity Bond and Diversified Income Funds,  under which Security  Management
   waives its management fee. The expense waiver  arrangement is described below
   in the section "Expense Limitation  Arrangements" and under the table "Annual
   Fund Operating  Expenses." The current  expense  waiver  arrangement  for the
   Funds may be terminated by Security Management at any time.

o  Security  Management  also  reimburses  expenses  of the Funds on a voluntary
   basis.  The  expense  reimbursement  arrangement  is  described  below in the
   section "Expense  Limitation  Arrangements"  and under the table "Annual Fund
   Operating   Expenses."  For  the  year  ended  December  31,  1999,  Security
   Management  reimbursed  certain  operating  expenses  of  Class B  shares  of
   Diversified  Income and Limited  Maturity Bond Funds and Class A and B shares
   of Corporate Bond Fund. The current expense reimbursement arrangement for the
   Funds may be terminated by Security Management at any time.

o  The current sales load structure for the each of the Funds is identical.

For  further  information  on fees and  expenses,  see  "Comparison  of Fees and
Expenses."

o  The Funds have the same investment manager, Security Management Company, LLC,
   700 SW Harrison Street, Topeka, Kansas. The Portfolio Manager for Diversified
   Income Fund is co-manager of the other Funds.

PURCHASE,  REDEMPTION,  AND EXCHANGE INFORMATION - The purchase,  redemption and
exchange  provisions  and  privileges for the Funds are the same. For additional
information on purchase,  redemption and exchange  procedures see "Comparison of
Fees  and  Expenses"  and  "Appendix  B  -  Additional   Information   Regarding
Diversified Income Fund."

FEDERAL INCOME TAX  CONSEQUENCES OF THE  REORGANIZATION  - The Funds expect that
the  Reorganization  will be  considered  a tax-free  reorganization  within the
meaning of section  368(a)(1) of the Internal  Revenue Code of 1986,  as amended
(the  "Code").  As such you will not  recognize  gain or loss as a result of the
Reorganization. See "Information About The Reorganization - Tax Considerations."

INVESTMENT OBJECTIVES AND POLICIES

COMPARISON  OF OBJECTIVES  AND PRIMARY  INVESTMENT  STRATEGIES - The  investment
objectives,  policies and restrictions of the Funds are similar,  although there
are certain  differences.  There can be no assurance  that any Fund will achieve
its stated objective.

INVESTMENT OBJECTIVE. The Funds have similar investment objectives and policies.

o  Corporate Bond Fund seeks to preserve capital while generating income.

o  Limited  Maturity  Bond Fund  seeks a high  level of income  consistent  with
   moderate price fluctuations.

o  Diversified Income Fund seeks to provide a high level of interest income with
   security of principal.

PRIMARY INVESTMENT STRATEGIES.

o  Each Fund primarily  invests in investment grade debt securities,  I.E. those
   which are rated BBB or high by Standard & Poor's Corporation or Baa or higher
   by Moody's Investors Service.

DIVERSIFIED INCOME FUND.

o  Generally,  Diversified  Income  Fund  invests  primarily  in  a  diversified
   portfolio of  investment  grade debt  securities.  Such debt  securities  are
   primarily domestic securities but may also include dollar denominated foreign
   securities.

o  Diversified  Income Fund seeks to diversify its holdings  among asset classes
   and  individual  securities.  Some of the asset classes in which the Fund may
   invest include  investment grade corporate debt  securities,  high yield debt
   securities  (also known as "junk bonds"),  investment  grade  mortgage-backed
   securities,   investment  grade  asset-backed  securities,   U.S.  Government
   securities and total return swap agreements.

o  Security  Management,  the Fund's  adviser,  uses a  "bottom-up"  approach in
   selecting asset classes and individual securities for the Fund's portfolio. A
   bottom-up  approach  means that the adviser  looks  primarily  at  individual
   issuers  against  the  context  of broader  market  factors.  When  analyzing
   individual  issuers,  the  adviser may  consider  relative  earnings  growth,
   profitability trends, financial strength,  valuation analysis and strength of
   management. The adviser also considers cash flow, an issuer's position in its
   market, capital structure, general economic factors, and market conditions.

o  In selecting securities for Diversified Income Fund, Security Management will
   compare  the credit risk and yield of a security to the credit risk and yield
   of securities of the same or another asset class.

CORPORATE BOND FUND.

o  Under  normal  conditions,   Corporate  Bond  Fund  invests  primarily  in  a
   diversified   portfolio  of  investment   grade  corporate  debt  securities.
   Corporate  Bond Fund holds at least 65% of its total assets in corporate debt
   securities  which have at the time of  issuance a maturity  greater  than one
   year. Such securities are primarily domestic  securities but may also include
   dollar denominated foreign securities.

o  Corporate  Bond Fund seeks to diversify its holdings  among asset classes and
   individual securities. Some of the asset classes in which the Fund may invest
   include   investment  grade  corporate  debt  securities,   high  yield  debt
   securities (also known as "junk bonds"), mortgage-backed securities, and U.S.
   Government securities.

o  As it does  for the  Diversified  Income  Fund,  Security  Management  uses a
   "bottom-up" approach in selecting asset classes and individual securities for
   the Corporate  Bond Fund's  portfolio.  A bottom-up  approach  means that the
   adviser looks primarily at individual  issuers against the context of broader
   market factors.  When analyzing  individual issuers, the adviser may consider
   relative earnings growth, profitability trends, financial strength, valuation
   analysis and strength of management.  Security Management also considers cash
   flow, an issuer's position in its market, capital structure, general economic
   factors, and market conditions.

o  In selecting  securities for Corporate Bond Fund,  Security  Management  will
   compare  the credit risk and yield of a security to the credit risk and yield
   of securities of the same or another asset class.

LIMITED MATURITY BOND FUND.

o  Under normal conditions,  Limited Maturity Bond Fund invests in a broad range
   of debt  securities  with  maturities  of 15  years  or  less.  Under  normal
   circumstances,  Limited  Maturity  Bond Fund  holds at least 65% of its total
   assets in short- to  intermediate-term  bonds  (those with  maturities  of 15
   years or less).  Such  securities are primarily  domestic  securities but may
   also include dollar denominated foreign securities.

o  Limited  Maturity  Bond Fund seeks to  diversify  its  holdings  among  asset
   classes and  individual  securities.  Some of the asset  classes in which the
   Fund may invest include  investment  grade  corporate debt  securities,  high
   yield  debt  securities   (also  known  as  "junk  bonds"),   mortgage-backed
   securities, and U.S. Government securities.

o  As it does  for the  other  Funds,  Security  Management  uses a  "bottom-up"
   approach in selecting asset classes and individual securities for the Limited
   Maturity Bond Fund's portfolio.  A bottom-up  approach means that the adviser
   looks  primarily at individual  issuers against the context of broader market
   factors. When analyzing individual issuers, the adviser may consider relative
   earnings growth, profitability trends, financial strength, valuation analysis
   and strength of management.  Security Management also considers cash flow, an
   issuer's position in its market, capital structure, general economic factors,
   and market conditions.

o  In selecting  securities for Limited Maturity Bond Fund,  Security Management
   will  compare  the credit risk and yield of a security to the credit risk and
   yield of securities of the same or another asset class.

DURATION/MATURITY.

o  Diversified  Income  Fund  is  expected  to  have a  dollar-weighted  average
   duration of 4 to 10 years.

o  Corporate Bond Fund is expected to have a  dollar-weighted  average  maturity
   between 5 and 15 years.

o  Limited Maturity Bond Fund's dollar-weighted  average maturity is expected to
   be between 2 and 10 years.

Following the  Reorganization and in the ordinary course of business as a mutual
fund, certain holdings of the Corporate Bond Fund and Limited Maturity Bond Fund
that were  transferred  to the  Diversified  Income Fund in connection  with the
Reorganization  may be sold.  Such sales may result in  increased  transactional
costs for  Diversified  Income Fund,  and the  realization  of taxable  gains or
losses.

COMPARISON OF PORTFOLIO  CHARACTERISTICS  - The following tables compare certain
characteristics of the portfolios of the Funds as of December 31, 1999:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------
                                                       DIVERSIFIED     CORPORATE       LIMITED MATURITY
                                                       INCOME FUND*    BOND FUND          BOND FUND
- -------------------------------------------------------------------------------------------------------
<S>                                                    <C>             <C>                <C>
Net Assets..........................................   $15,078,186     $58,614,431        $6,895,312
Number of Holdings..................................        35              97                 97
Average Credit Quality..............................       AAA               A                 A+
Portfolio Turnover Rate (12 months ended 12/31/99)..        65%             36%                31%
As a percentage of net assets:
o  Treasury bonds, bills and notes..................       4.3%            7.8%                 0
o  Mortgage-Related Securities......................      43.0%           27.8%              19.8%
o  U.S. Gov. Securities not backed
   by full faith and credit.........................      49.4%            2.1%               3.0%
o  Corporate Debt...................................         0            61.0%              75.7%
o  Others Assets and Liabilities, net...............       3.3%            1.3%               1.5%
- -------------------------------------------------------------------------------------------------------
</TABLE>

                     TOP 10 HOLDINGS (AS A % OF NET ASSETS)

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------
DIVERSIFIED INCOME FUND*       CORPORATE BOND FUND            LIMITED MATURITY BOND FUND
- -----------------------------------------------------------------------------------------
<S>                    <C>     <C>                    <C>     <C>                    <C>
FNMA 6.5% due 2004     6.6%    U.S. treasury note     2.8%    FNMA 6.5% due 2004     3.6%
                               5.75% due 2003
- -----------------------------------------------------------------------------------------
GNMA 7.5% due 2029     6.5%    GNMA 7.5% due 2029     2.6%    FNMA 6.25% due 2004    3.5%
- -----------------------------------------------------------------------------------------
Fed. Home Loan Mort.   6.4%    Chase Commercial       2.5%    Province of Quebec     2.3%
Note 6.63% due 2009            Mort. Secs. Corp               8.63% due 2005
- -----------------------------------------------------------------------------------------
GNMA 6.5% due 2028     4.7%    FNMA 6.38%             2.4%    Vastar Resources       2.3%
                                                              8.75% due 2005
- -----------------------------------------------------------------------------------------
GNMA 7% due 2026       4.4%    S I Financing Trust    2.1%    Household Finance      2.2%
                               9.5% due 2026                  Corp. 8% due 2004
- -----------------------------------------------------------------------------------------
U.S. treasury bond     4.3%    HUD 6.93% due 2013     2.1%    Int'l Lease Finance    2.2%
8.75% due 2008                                                Corp. 8.25% due 2000
- -----------------------------------------------------------------------------------------
Financing Corp.        4.1%    Panamerican Beverage   2.0%    GNMA 7% due 2028       2.2%
9.65% due 2018                 8.13% due 2003
- -----------------------------------------------------------------------------------------
FNMA 7.4% due 2004     4.1%    United Airlines        1.9%    Consol. Edison Co.     2.2%
                               11.21% due 2014                6.63% due 2002
- -----------------------------------------------------------------------------------------
FNMA 7.875% due 2024   3.5%    Anhueser Busch 7.1%    1.9%    Sears Roebuck          2.1%
                               due 2007                       Acceptance 6.41%
                                                              due 2001
- -----------------------------------------------------------------------------------------
GNMA 7.5% due 2034     3.4%    Abbey National PLC     1.9%    Freddie Mac 5.75%      2.1%
                               6.69% due 2005                 due 2003
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

*The  Board of  Directors  of  Security  Income  Fund  approved  a change in the
 investment  policies of Diversified  Income Fund,  effective  February 4, 2000.
 Prior to that  change,  the Fund had a policy of  investing at least 80% of its
 total assets in U.S. Government  securities.  The Fund may now invest in a more
 diversified portfolio of debt securities,  including investment grade corporate
 debt  securities,  high yield debt  securities  (also  known as "junk  bonds"),
 investment grade  mortgage-backed  securities,  investment  grade  asset-backed
 securities, U.S. Government securities and total return swap agreements.

RELATIVE  PERFORMANCE - The following table shows,  for each calendar year since
1990,  the average  annual  total  return for (a) Class A shares of  Diversified
Income Fund,  (b) Class A shares of Corporate  Bond Fund,  (c) Class A shares of
Limited  Maturity Bond Fund, and (d) the Lehman  Brothers  Aggregate Bond Index.
Performance  of the Funds in the table below does not reflect the  deduction  of
sales  loads.  The  Lehman  Brothers   Aggregate  Bond  Index  has  an  inherent
performance advantage over the Funds, since it has no cash in its portfolio, and
incurs no  operating  expenses.  An investor  cannot  invest in an index.  Total
return is  calculated  assuming  reinvestment  of all dividends and capital gain
distributions  at net  asset  value and  excluding  the  deduction  of any sales
charges.

- --------------------------------------------------------------------------------
                                                                 LEHMAN BROTHERS
CALENDAR YEAR/    DIVERSIFIED     CORPORATE   LIMITED MATURITY      AGGREGATE
 PERIOD ENDED    INCOME FUND(1)   BOND FUND     BOND FUND(2)      BOND INDEX(3)
- --------------------------------------------------------------------------------
   12/31/90          9.8%            6.6%          N/A                8.95%
   12/31/91         13.8%           16.1%          N/A               16.00%
   12/31/92          5.0%            9.0%          N/A                7.40%
   12/31/93         10.9%           13.4%          N/A                9.75%
   12/31/94         -6.5%           -8.3%          N/A               -2.92%
   12/31/95         21.9%           18.2%         13.0%              18.48%
   12/31/96          1.3%           -0.5%          2.1%               3.61%
   12/31/97          9.2%            9.7%          9.0%               9.68%
   12/31/98          9.1%            7.6%          7.5%               8.67%
   12/31/99         -3.6%           -3.7%         -1.8%              -0.83%
- --------------------------------------------------------------------------------
(1)  Prior to February 4, 2000, the Diversified  Income Fund was named the "U.S.
     Government Fund" and, under normal conditions, invested at least 80% of the
     value of its total assets in U.S. Government securities.

(2)  From the Limited Maturity Bond Fund's inception on November 7, 1995.

(3)  The Lehman  Brothers  Aggregate Bond Index is comprised of debt  securities
     which  include  U.S.  Government  securities,  corporate  debt  securities,
     asset-backed securities, mortgage-backed securities and total return swaps.
- --------------------------------------------------------------------------------

COMPARISON OF RISKS  INVOLVED IN INVESTING IN THE FUNDS - Because the Funds have
similar  investment  objectives and policies,  the risks of an investment in the
Funds are substantially  similar.  The principal risk of an investment in one of
the Funds is  fluctuation  in the net asset value of the Fund's  shares.  Market
conditions,  investment policies, portfolio management, and other factors affect
such fluctuations.

Each Fund is subject to risks  associated  with  investing  in debt  securities,
including changes in interest rates,  credit risks,  prepayment risks, and risks
of mortgage-backed  securities,  foreign securities,  restricted  securities and
high yield securities as described below.

o  The value of each Fund's  investments may fall when interest rates rise. Each
   of the Funds may be sensitive to interest rates because they primarily invest
   in debt securities . Debt  securities  with longer  durations tend to be more
   sensitive to changes in interest  rates,  usually  making them more  volatile
   than debt securities  with shorter  durations.  Accordingly,  the Diversified
   Income  Fund may be exposed to  interest  rate risk to a greater  degree than
   Limited Maturity Bond Fund, as Diversified  Income Fund typically is expected
   to invest in debt  securities  with longer  durations  than the securities in
   which Limited  Maturity  Bond Fund  typically  invests.  For the same reason,
   Corporate  Bond Fund may be exposed to interest rate risk to a greater degree
   than Diversified Income Fund.

o  Each Fund could lose money if the issuer of a debt security is unable to meet
   its  financial  obligations  or goes  bankrupt.  Also,  an issuer  may suffer
   adverse changes in financial condition that could lower the credit quality of
   a security held by a Fund,  leading to greater volatility in the price of the
   security  and in  shares of the Fund.  A change  in the  quality  rating of a
   security can affect its liquidity and make it more  difficult for the Fund to
   sell.

o  Each of the Funds may invest in mortgage-backed  securities,  and Diversified
   Income Fund may invest in asset-backed securities,  each of which can be paid
   off  early if the  borrowers  on the  underlying  obligations  pay off  their
   mortgages  sooner than  scheduled.  If interest rates are falling,  the Funds
   will be forced to reinvest  this money at lower  yields.  Diversified  Income
   Fund  may be  exposed  to the  risks  of  investing  in  mortgage-backed  and
   asset-backed  securities  to a greater  degree than the other  Funds,  as its
   investments  in such  securities  are not  subject  to the  same  limitations
   applicable to the Corporate Bond and Limited Maturity Bond Funds.

o  Each of the Funds  may  invest in  mortgage-backed  securities,  which may be
   considered derivatives. These types of derivatives are subject to the risk of
   changes  in the  market  price  of the  security  and the risk of loss due to
   changes in interest  rates.  The use of these  derivatives may reduce returns
   for the Funds.

o  Diversified  Income  Fund may invest in total  return swap  agreements  which
   entail both interest rate risk and credit risk.  There is a risk that,  based
   on movements of interest  rates in the future,  the payments made by the Fund
   under a swap agreement will be greater than the payments it received.  Credit
   risk arises from the possibility that the counterparty  will default.  If the
   counterparty  defaults,  the  Fund's  loss will  consist of the net amount of
   contractual interest payments that the Fund has not yet received.

o  Each Fund may invest in dollar-denominated foreign securities. Investments in
   foreign   securities   may  involve  risks  in  addition  to  those  of  U.S.
   investments, including increased political and economic risk.

o  Each Fund may invest in  securities  that are  restricted  as to  disposition
   under the federal securities laws. Since the market for restricted securities
   is limited, the liquidity of these securities may be limited.

o  Each Fund may invest in higher  yielding,  high risk debt  securities.  These
   investments may present  additional risk because they may be less liquid than
   investment grade bonds. In addition, the price of high yield securities tends
   to be more  susceptible  to interest  rate  changes and to real or  perceived
   adverse economic and competitive industry  conditions.  High yield securities
   are subject to more credit risk than higher quality securities.

COMPARISON OF SECURITIES AND INVESTMENT  TECHNIQUES - The following is a summary
of the types of  securities  in which the Funds may  invest and  strategies  the
Funds  may  employ  in  pursuit  of  their  investment  objectives.  As with any
security,  an investment in a Fund's shares  involves  certain risks,  including
loss of principal. The Funds are subject to varying degrees of financial, market
and credit risk.  An  investment  in the Funds is not a deposit of a bank and is
not insured by the Federal Deposit Insurance Corporation or any other government
agency.

CONVERTIBLE  SECURITIES.  Each  Fund  may  invest  in debt or  preferred  equity
securities   convertible   into,  or  exchangeable   for,   equity   securities.
Traditionally,  convertible  securities have paid dividends or interest at rates
higher  than  common  stocks but lower  than  non-convertible  securities.  They
generally  participate in the  appreciation  or  depreciation  of the underlying
stock into which they are convertible, but to a lesser degree.

FOREIGN SECURITIES.  Each Fund may invest up to 25% of its net assets in foreign
securities  denominated in U.S. dollars.  Foreign investments  increase a Fund's
diversification  and may enhance  return,  but they also  involve  some  special
risks,  such as exposure to  potentially  adverse  local  political and economic
developments; nationalization and exchange controls; potentially lower liquidity
and  higher   volatility;   and  possible   problems  arising  from  accounting,
disclosure, settlement and regulatory practices that differ from U.S. standards.
These risks are heightened for investments in developing countries.

ASSET-BACKED  SECURITIES.  Each of Corporate Bond Fund and Limited Maturity Bond
Fund may invest up to 15% of its total assets, and Diversified Income Series may
invest without limit, in investment grade asset-backed securities. An underlying
pool of assets, such as credit card receivables,  automobile loans, or corporate
loans or bonds back these bonds and provides the interest and principal payments
to  investors.  On  occasion,  the  pool  of  assets  may  also  include  a swap
obligation,  which is used to change the cash flows on the underlying assets. As
an  example,  a swap may be used to allow  floating  rate assets to back a fixed
rate  obligation.  Credit  quality  depends  primarily  on  the  quality  of the
underlying assets, the level of credit support,  if any, provided by the issuer,
and the credit quality of the swap  counterparty,  if any. The underlying assets
(I.E.,  loans) are subject to  prepayments,  which can  shorten the  securities'
weighted average life and may lower their return.  The value of these securities
also may change because of actual or perceived  changes in the  creditworthiness
of the originator,  the servicing  agent,  the financial  institution  providing
credit support, or swap counterparty.

MORTGAGE-BACKED  SECURITIES.  Each of Corporate  Bond Fund and Limited  Maturity
Bond Fund may invest up to 35% of its total assets,  and Diversified Income Fund
may invest without limit, in a variety of mortgage-backed  securities.  Mortgage
lenders pool  individual home mortgages with similar  characteristics  to back a
certificate or bond, which is sold to investors such as the Funds.  Interest and
principal payments  generated by the underlying  mortgages are passed through to
the investors.  The three largest issuers of these securities are the Government
National Mortgage  Association (GNMA), the Federal National Mortgage Association
(Fannie Mae) and the Federal Home Loan Mortgage  Corporation (Freddie Mac). GNMA
certificates  are backed by the full  faith and  credit of the U.S.  Government,
while  others,  such as  Fannie  Mae and  Freddie  Mac  certificates,  are  only
supported by the ability to borrow from the U.S.  Treasury or supported  only by
the credit of the agency.  Private mortgage bankers and other  institutions also
issue  mortgage-backed  securities.  Mortgage-backed  securities  are subject to
scheduled and  unscheduled  principal  payments as homeowners pay down or prepay
their  mortgages.  As these payments are received,  they must be reinvested when
interest  rates may be higher or lower than on the original  mortgage  security.
Therefore,  these  securities are not an effective means of locking in long-term
interest  rates.  In addition,  when interest  rates fall,  the pace of mortgage
prepayments  picks up.  These  refinanced  mortgages  are paid off at face value
(par),  causing a loss for any investor who may have purchased the security at a
price above par. In such an  environment,  this risk limits the potential  price
appreciation  of these  securities and can negatively  affect a Fund's net asset
value. When rates rise, the prices of mortgage-backed securities can be expected
to decline,  although  historically  these securities have  experienced  smaller
price declines than comparable  quality bonds. In addition,  when rates rise and
prepayments slow, the effective duration of mortgage-backed  securities extends,
resulting in increased volatility.

Additional  mortgage-backed  securities  in which the Funds may  invest  include
COLLATERALIZED  MORTGAGE  OBLIGATIONS  (CMOs) and stripped mortgage  securities.
CMOs are debt  securities  that  are  fully  collateralized  by a  portfolio  of
mortgages or  mortgage-backed  securities.  All interest and principal  payments
from the underlying mortgages are passed through to the CMOs in such a way as to
create,  in most  cases,  more  definite  maturities  than is the case  with the
underlying  mortgages.  CMOs may pay fixed or variable  rates of  interest,  and
certain  CMOs  have  priority  over  others  with  respect  to  the  receipt  of
prepayments.  Stripped  mortgage  securities  (a type of  potentially  high-risk
derivative)  are created by  separating  the  interest  and  principal  payments
generated by a pool of mortgage-backed  securities or a CMO to create additional
classes of  securities.  Generally,  one class  receives only interest  payments
(IOs)  and  another  receives  principal  payments  (POs).   Unlike  with  other
mortgage-backed  securities  and POs, the value of IOs tends to move in the same
direction as interest  rates.  The fund can use IOs as a hedge  against  falling
prepayment  rates (interest rates are rising) and/or a bear market  environment.
POs can be used as a hedge against rising  prepayment  rates (interest rates are
falling) and/or a bull market environment.  IOs and POs are acutely sensitive to
interest  rate  changes  and to the rate of  principal  prepayments.  A rapid or
unexpected  increase in prepayments can severely depress the price of IOs, while
a rapid or unexpected decrease in prepayments could have the same effect on POs.
These  securities  are very volatile in price and may have lower  liquidity than
most  other  mortgage-backed  securities.  Certain  non-stripped  CMOs  may also
exhibit these  qualities,  especially  those that pay variable rates of interest
that adjust inversely with, and more rapidly than, short-term interest rates. In
addition,  if interest  rates rise rapidly and  prepayment  rates slow more than
expected, certain CMOs, in addition to losing value, can exhibit characteristics
of  longer-term  securities  and become more  volatile.  There is no guarantee a
Fund's  investment in CMOs,  IOs, or POs will be successful,  and a Fund's total
return could be adversely  affected as a result.  Each Fund may invest up to 10%
of its net  assets  in IOs,  POs,  inverse  floating  obligations  and  residual
interest bonds.

RESTRICTED  SECURITIES.  Each Fund may invest in restricted  securities that are
eligible  for  resale  under  Rule  144A of the  Securities  Act of 1933.  These
securities   are  sold  directly  to  a  small  number  of  investors,   usually
institutions.  Unlike public offerings, restricted securities are not registered
with the SEC. Although restricted securities which are eligible for resale under
Rule 144A may be readily  sold to  qualified  buyers,  there may not always be a
market for them and their sale may  involve  substantial  delays and  additional
costs. In addition,  the Funds may invest in restricted  securities that are not
eligible for resale under Rule 144A. Because there is no active market for these
types of securities,  selling a security that is not a Rule 144A security may be
difficult  and/or may involve expenses that would not be incurred in the sale of
securities that were freely marketable.

LOWER-RATED  DEBT  SECURITIES.  Each Fund may  invest in  higher  yielding  debt
securities in the lower rating (higher risk) categories of the recognized rating
services (commonly  referred to as "junk bonds").  The total return and yield of
junk bonds can be expected to fluctuate  more than the total return and yield of
higher-quality  bonds.  Junk bonds  (those  rated below BBB or in  default)  are
regarded as predominantly  speculative  with respect to the issuer's  continuing
ability to meet  principal  and  interest  payments.  Successful  investment  in
lower-medium-  and  low-quality  bonds involves  greater  investment risk and is
highly dependent on Security  Management's credit analysis.  A real or perceived
economic  downturn or higher  interest rates could cause a decline in high-yield
bond prices by lessening  the ability of issuers to make  principal and interest
payments.  These bonds are often thinly traded and can be more difficult to sell
and value accurately than high-quality bonds. Because objective pricing data may
be less available, judgment may play a greater role in the valuation process. In
addition,  the entire  junk bond  market can  experience  sudden and sharp price
swings due to a variety of factors,  including  changes in  economic  forecasts,
stock  market  activity,   large  or  sustained  sales  by  major  investors,  a
high-profile default, or just a change in the market's psychology.  This type of
volatility  is usually  associated  more with stocks  than bonds,  but junk bond
investors should be prepared for it.

U.S. GOVERNMENT  SECURITIES.  Each Fund may invest in U.S. Government securities
and  Diversified  Income  Fund will  invest  at least  35% of its net  assets in
securities  issued  by  the  U.S.  or  Canadian  Governments.   U.S.  Government
securities  include  direct  obligations  of the  U.S.  Treasury  (such  as U.S.
Treasury bills,  notes and bonds) and  obligations  issued or guaranteed by U.S.
Government  agencies  or  instrumentalities.  While U.S.  Government  securities
provide  substantial  protection  against  credit  risk,  they  do  not  protect
investors  against price  declines in the  securities  due to changing  interest
rates. Additionally,  obligations of some U.S. Government agencies, such as FNMA
and FHLMC,  are not backed by the full faith and credit of the U.S.  Government,
and are subject to somewhat  greater credit risk than direct  obligations of the
U.S. Treasury.

ILLIQUID  SECURITIES.  Each  Fund  may  invest  up to 15% of its net  assets  in
illiquid securities, which do not include restricted securities that are readily
marketable.  Generally,  a  security  is  considered  illiquid  if it  cannot be
disposed of within seven days at approximately the value at which it is carried.
Illiquidity  might  prevent the sale of the  security at a time when the adviser
might wish to sell, and these securities could have the effect of decreasing the
overall  level  of a  Fund's  liquidity.  Further,  the  lack of an  established
secondary market may make it more difficult to value illiquid securities.

SWAPS, CAPS, FLOORS AND COLLARS. Diversified Income Fund may enter into interest
rate,  total  return and index swaps.  Diversified  Income Fund would enter into
these  transactions  primarily  to  preserve a return or spread on a  particular
investment  or  portion  of  its  portfolio  as a  technique  for  managing  the
portfolio's  duration (I.E. the price  sensitivity to changes in interest rates)
or to  protect  against  any  increase  in the  price  of  securities  the  Fund
anticipates  purchasing  at a later date. To the extent the  Diversified  Income
Fund enters into these types of  transactions,  it will be done to hedge and not
as a  speculative  investment,  and the Fund will not sell interest rate caps or
floors if it does not own securities or other  instruments  providing the income
the Fund may be obligated to pay.  Interest  rate swaps  involve the exchange by
the Fund with another party of their  respective  commitments  to pay or receive
interest on a notional  amount of principal.  The purchase of a cap entitles the
purchaser  to receive  payments  on a notional  principal  amount from the party
selling  the cap to the extent that a specified  index  exceeds a  predetermined
interest  rate. 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.  A collar is a  combination  of a cap and a floor that  preserves  a
certain return within a predetermined range of interest rates or values.

FUTURES AND OPTIONS.  Diversified Income Fund may utilize futures contracts. The
Diversified  Income Fund may also utilize  options on futures,  and may purchase
call and put  options  and write  call and put  options  on a  "covered"  basis.
Futures (a type of potentially high-risk derivative) are often used to manage or
hedge  risk  because  they  enable the  investor  to buy or sell an asset in the
future at an agreed-upon price.  Options (another type of potentially  high-risk
derivative)  give the  investor  the right  (where the  investor  purchases  the
options),  or the obligation (where the investor writes (sells) the options), to
buy or sell an asset at a predetermined price in the future. Futures and options
contracts may be bought or sold for any number of reasons,  including: to manage
exposure to changes in interest rates and bond prices;  as an efficient means of
adjusting  overall exposure to certain markets;  in an effort to enhance income;
to protect the value of portfolio securities;  and to adjust portfolio duration.
The Diversified Income Fund may purchase, sell, or write call and put options on
securities and financial  indices.  Futures contracts and options may not always
be  successful  hedges;  their prices can be highly  volatile.  Using them could
lower the Fund's total return,  and the  potential  loss from the use of futures
can exceed the Fund's initial investment in such contracts.

WHEN-ISSUED SECURITIES AND FORWARD COMMITMENT CONTRACTS.  Each Fund may purchase
and  sell  securities  on a "when  issued,"  "forward  commitment"  or  "delayed
delivery"  basis.  The  price  of these  securities  is fixed at the time of the
commitment  to buy,  but  delivery  and  payment  can take place a month or more
later.  During the  interim  period,  the  market  value of the  securities  can
fluctuate,  and no interest  accrues to the purchaser.  At the time of delivery,
the value of the securities may be more or less than the purchase or sale price.
When a Fund  purchases  securities  on this  basis,  there  is a risk  that  the
securities may not be delivered and that the Fund may incur a loss.

BORROWING.  Each Fund may borrow  money from banks as a  temporary  measure  for
emergency purposes,  to facilitate  redemption  requests,  or for other purposes
consistent with the Fund's investment objective and program. Such borrowings may
be  collateralized  with  Fund  assets.  To the  extent  that  a Fund  purchases
securities  while it has outstanding  borrowings,  it is using  leverage,  I.E.,
using borrowed funds for  investment.  Leveraging  will exaggerate the effect on
net asset value of any  increase  or decrease in the market  value of the Fund's
portfolio.  Money borrowed for leveraging will be subject to interest costs that
may or may not be recovered by  appreciation  of the  securities  purchased;  in
certain cases,  interest costs may exceed the return  received on the securities
purchased.  A Fund also may be required to maintain  minimum average balances in
connection with such borrowing or to pay a commitment or other fee to maintain a
line of  credit;  either  of  these  requirements  would  increase  the  cost of
borrowing over the stated interest rate.

COMPARISON OF FEES AND EXPENSES

The  following  describes and compares the fees and expenses that you may pay if
you buy and hold shares of the Funds.  It is expected  that  combining the Funds
would allow shareholders to realize economies of scale. For further  information
on the  fees  and  expenses  of  Diversified  Income  Fund,  see  "Appendix  B -
Additional Information Regarding Diversified Income Fund."

OPERATING  EXPENSES  - The  total  fund  operating  expenses  of each  class  of
Corporate  Bond Fund,  expressed  as a ratio of  expenses  to average  daily net
assets ("expense  ratio"),  before taking into account the management fee waiver
currently are lower than the corresponding  classes of Diversified  Income Fund.
The expense ratio of Limited  Maturity Bond Fund, with or without the management
fee waiver currently is lower than that of Diversified Income Fund.

o  After a  voluntary  management  fee waiver by  Security  Management,  the net
   expense ratio for the Class A shares of Diversified  Income Fund for the year
   ended  December 31, 1999,  was lower by 0.22% than that of the Class A shares
   of the  Corporate  Bond Fund and was higher by 0.10% than that of the Class A
   shares of the Limited Maturity Bond Fund.

o  After a  voluntary  management  fee waiver by  Security  Management,  the net
   expense ratio for the Class B shares of Diversified  Income Fund for the year
   ended December 31, 1999 was the same as the net expense ratio for the Class B
   shares of  Corporate  Bond Fund and was 0.01% less than the Class B shares of
   Limited Maturity Bond Fund.

o  The  management  fee for the  Diversified  Income  Fund  was the  same as the
   management  fee for  Corporate  Bond and Limited  Maturity Bond Funds for the
   year ended December 31, 1999.  Effective February 4, 2000, the management fee
   for the  Diversified  Income Fund was 0.15% lower than that of Corporate Bond
   and Limited Maturity Bond Funds.

o  The fees for  distribution and shareholder  servicing for Diversified  Income
   Fund are the same as Corporate Bond and Limited Maturity Bond Funds.

It is expected that combining the Funds will adjust the operating  expense ratio
to a lower level than the  operating  expense ratio of any of the Funds prior to
the  Reorganization.  For more information,  see estimated PRO FORMA expenses in
the table, "Annual Fund Operating Expenses."

An expense  waiver  arrangement  is in place for Limited  Maturity Bond Fund and
Diversified  Income Fund, under which Security  Management waives its management
fee for each such Fund. The expense waiver arrangement is described below in the
section  "Expense  Limitation  Arrangements"  and under the table  "Annual  Fund
Operating Expenses." The current expense waiver arrangement for Limited Maturity
Bond Fund and Diversified  Income Fund may be terminated at any time by Security
Management.

An  expense  reimbursement  arrangement  is in place for the Funds  under  which
Security  Management  reimburses  certain  operating  expenses of the Funds on a
voluntary basis. The expense reimbursement  arrangement is described below under
"Expense   Limitation   Arrangements"  and  the  table  "Annual  Fund  Operating
Expenses." The current  expense  reimbursement  arrangement may be terminated at
any time by Security Management.

The current expenses of each Fund and estimated PRO FORMA expenses giving effect
to the proposed  Reorganization  are shown in the table below.  Expenses for the
Funds are based on the operating  expenses  incurred for the year ended December
31, 1999,  except that the management fee for  Diversified  Income Fund is based
upon the fee in effect as of February 4, 2000.  PRO FORMA fees and expenses show
estimated  fees and expenses of  Diversified  Income Fund after giving effect to
the proposed  Reorganization.  PRO FORMA numbers are estimated in good faith and
are hypothetical.

<TABLE>
- ---------------------------------------------------------------------------------------------------------------------------
ANNUAL FUND OPERATING EXPENSES
(expenses that are deducted from Fund assets, shown as a ratio of expenses to average daily net assets)(1)
- ---------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                DISTRIBUTION
                                              AND SHAREHOLDER                  TOTAL FUND     FEE WAIVER OR
                               MANAGEMENT        SERVICING         OTHER       OPERATING      REIMBURSEMENT       NET FUND
                                  FEES        (12B-1) FEES(2)     EXPENSES     EXPENSES       BY ADVISER(3)     EXPENSES(3)
<S>                               <C>              <C>             <C>           <C>              <C>              <C>
CLASS A
Diversified Income Fund           0.35%            0.25%           0.62%         1.22%            0.35%            0.87%
Corporate Bond Fund               0.50%            0.25%           0.35%         1.10%            0.01%            1.09%
Limited Maturity Bond Fund        0.50%            0.25%           0.52%         1.27%            0.50%            0.77%
Pro Forma                         0.35%            0.25%           0.40%         1.00%             ---             1.00%

CLASS B
Diversified Income Fund           0.35%            1.00%           0.86%         2.21%            0.36%            1.85%
Corporate Bond Fund               0.50%            1.00%           0.65%         2.15%            0.30%            1.85%
Limited Maturity Bond Fund        0.50%            1.00%           0.91%         2.41%            0.56%            1.85%
Pro Forma                         0.35%            1.00%           0.40%         1.75%             ---             1.75%
- ---------------------------------------------------------------------------------------------------------------------------
<FN>
(1)  Expenses  are shown for each Fund,  and on a pro forma  basis,  based upon  expenses  incurred by each Fund for the 12
     months ended December 31, 1999,  except that the management fee for  Diversified  Income Fund is based upon the fee in
     effect as of February 4, 2000.  Effective on that date,  the Board of Directors  of Security  Income Fund  approved an
     amendment to the investment  advisory agreement with Security  Management to reduce the management fee for Diversified
     Income Fund from 0.50% to 0.35%.

(2)  As a result of distribution  (Rule 12b-1) fees, a long term investor may pay more than the economic  equivalent of the
     maximum sales charge allowed by the Rules of the National Association of Securities Dealers, Inc. (NASD).

(3)  Pursuant to a voluntary  waiver  arrangement,  Security  Management  waived its management fee with respect to Limited
     Maturity Bond and Diversified  Income Funds.  Absent the waiver,  each Fund's total operating expenses would be as set
     forth under "Total Fund Operating Expenses" above. Similarly Security Management reimbursed certain operating expenses
     of Corporate Bond Fund. Absent such voluntary reimbursement,  the expense ratio of Corporate Bond Fund would be as set
     forth under "Total Fund Operating  Expenses,"  above.  Security  Management may discontinue  the voluntary  waiver and
     reimbursement arrangements at any time.
</FN>
- ---------------------------------------------------------------------------------------------------------------------------
</TABLE>

EXAMPLE.

This  example is intended to help you compare the cost of investing in the Funds
and in the  combined  Funds on a PRO FORMA basis.  The example  assumes that you
invest $10,000 in each Fund and in the surviving  Fund after the  Reorganization
for the time periods indicated. For each Fund, expenses prior to a voluntary fee
waiver or reimbursement by Security  Management are presented.  The Example also
assumes  that  your  investment  has a 5% return  each year and that the  Fund's
operating  expenses  remain the same.  The 5% return is an assumption and is not
intended  to  portray  past or  future  investment  results.  Based on the above
assumptions, you would pay the following expenses if you redeemed your shares at
the end of such period shown; your actual costs may be higher or lower.

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------------
                                     1 YEAR                  3 YEARS                 5 YEARS                10 YEARS*
- --------------------------------------------------------------------------------------------------------------------------
                               CLASS A     CLASS B     CLASS A     CLASS B     CLASS A     CLASS B     CLASS A     CLASS B
<S>                             <C>         <C>         <C>        <C>         <C>         <C>         <C>         <C>
Corporate Bond Fund             $582        $718        $808       $  973      $1,052      $1,354      $1,752      $2,212
Limited Maturity Bond Fund       598         744         859        1,051       1,139       1,485       1,936       2,459
Diversified Income Fund          593         724         844          991       1,113       1,385       1,882       2,290
Combined Funds (pro forma)       572         678         778          851       1,001       1,149       1,641       1,864
- --------------------------------------------------------------------------------------------------------------------------
<FN>
*The ten year  calculations for Class B shares assume conversion of the Class B shares to Class A shares at the end of the
 eighth year following the date of purchase.
</FN>
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>

You would pay the following expenses if you did not redeem your shares:

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------------
                                     1 YEAR                  3 YEARS                 5 YEARS                10 YEARS*
- --------------------------------------------------------------------------------------------------------------------------
                               CLASS A     CLASS B     CLASS A     CLASS B     CLASS A     CLASS B     CLASS A     CLASS B
<S>                             <C>         <C>         <C>         <C>        <C>         <C>         <C>         <C>
Corporate Bond Fund             $582        $218        $808        $673       $1,052      $1,154      $1,752      $2,212
Limited Maturity Bond Fund       598         244         859         751        1,139       1,285       1,936       2,459
Diversified Income Fund          593         224         844         691        1,113       1,185       1,882       2,290
Combined Funds (pro forma)       572         178         778         551        1,001         949       1,641       1,864
- --------------------------------------------------------------------------------------------------------------------------
<FN>
*The ten year  calculations for Class B shares assume conversion of the Class B shares to Class A shares at the end of the
 eighth year following the date of purchase.
</FN>
- --------------------------------------------------------------------------------------------------------------------------
</TABLE>

EXPENSE LIMITATION  ARRANGEMENTS - Security Management has waived its management
fee for the Limited  Maturity Bond Fund and the Diversified  Income Fund and has
reimbursed certain operating expenses of Class B shares of Limited Maturity Bond
and  Diversified  Income Funds and Class A and B shares of Corporate  Bond Fund.
After the waiver, the management fee would be 0.00% and the total fund operating
expenses  would be 0.77% for  Class A and  1.85%  for Class B shares of  Limited
Maturity  Bond  Fund and would be 0.87% for Class A and 1.85% for Class B shares
of  Diversified  Income Fund.  After the expense  reimbursement,  the total fund
operating  expenses  would be 1.09%  for  Class A shares  and  1.85% for Class B
shares  of  Corporate  Bond  Fund.  The fee  waiver  and  expense  reimbursement
arrangements  are  voluntary  and  not  contractual  commitments,   and  can  be
terminated by Security Management at any time.

GENERAL  INFORMATION  - Class A and Class B shares of  Diversified  Income  Fund
issued to a shareholder in connection with the Reorganization will be subject to
the  same  contingent   deferred  sales  charge,  if  any,   applicable  to  the
corresponding  shares of Corporate Bond Fund and Limited Maturity Bond Fund held
by that shareholder immediately prior to the Reorganization.

In addition,  the period that the shareholder held shares of Corporate Bond Fund
and  Limited  Maturity  Bond Fund would be  included  in the  holding  period of
Diversified  Income  Fund  shares for  purposes of  calculating  any  contingent
deferred  sales  charge.  Similarly,  Class B shares of Corporate  Bond Fund and
Limited  Maturity  Bond Fund  issued to a  shareholder  in  connection  with the
Reorganization  will  convert to Class A shares  eight years after the date that
the  corresponding  Class B shares of Corporate  Bond Fund and Limited  Maturity
Bond Fund were purchased by the shareholder.  Purchases of shares of Diversified
Income Fund after the Reorganization will be subject to the sales load structure
described in the table below for Diversified Income Fund. This is the same sales
load  structure  that is currently in effect for Corporate Bond Fund and Limited
Maturity Bond Fund.

- --------------------------------------------------------------------------------
TRANSACTION FEES ON NEW INVESTMENTS (fees paid directly from your investment)
- --------------------------------------------------------------------------------
                                                     CLASS A     CLASS B(1)
Maximum sales charge (load) imposed on purchases
(as a percentage of offering price)                    4.75         None

Maximum deferred sales charge (load) (as a
percentage of the lower of original purchase
price or redemption proceeds)                        None(2)      5.00%(3)
- --------------------------------------------------------------------------------
1  Class B shares convert tax-free to Class A shares  automatically  after eight
   years.

2  Purchases of Class A shares in amounts of  $1,000,000 or more are not subject
   to an initial sales load;  however,  a deferred sales charge of 1% is imposed
   in the event of redemption within one year of purchase.

3  5% during the first year, decreasing to 0% in the sixth and following years.
- --------------------------------------------------------------------------------

None of the Funds has any redemption fees,  exchange fees or sales charges on
reinvested dividends.

ADDITIONAL INFORMATION ABOUT DIVERSIFIED INCOME FUND

INVESTMENT MANAGER - Security  Management,  each Fund's investment manager, is a
Kansas limited liability company.  On December 31, 1999, the aggregate assets of
all of the mutual funds under the investment  management of Security  Management
were approximately $____ billion. Security Management has overall responsibility
for the management of the Funds.  Security  Income Fund and Security  Management
have entered into an agreement  that  requires  Security  Management  to provide
investment advisory,  statistical and research services to the Funds,  supervise
and arrange for the purchase and sale of securities on behalf of the Funds,  and
provide  for the  maintenance  and  compilation  of  records  pertaining  to the
investment  advisory  function.  The agreement  with Security  Management can be
canceled by the Board of Directors of Security  Income Fund upon 60 days written
notice.  Investment  management  fees are  computed  and accrued  daily and paid
monthly.

INVESTMENT  PERSONNEL - The following  individuals have  responsibility  for the
day-to-day management of the Funds:

o  Steve Bowser,  Vice President and Portfolio  Manager of Security  Management,
   has managed the  Diversified  Income Fund's  portfolio since 1995. Mr. Bowser
   has also  co-managed the Corporate  Bond Fund and Limited  Maturity Bond Fund
   portfolios  since June 1997. Mr. Bowser joined  Security  Management in 1992.
   Prior to joining  Security  Management,  he was Assistant  Vice President and
   Portfolio  Manager  with the  Federal  Home Loan Bank of Topeka  from 1989 to
   1992. He was employed at the Federal  Reserve Bank of Kansas City in 1988 and
   began his career with the Farm Credit System from 1982 to 1987,  serving as a
   Senior  Financial  Analyst and  Assistant  Controller.  He  graduated  with a
   bachelor of science  degree from Kansas  State  University  in 1982.  He is a
   Chartered Financial Analyst.

o  David Eshnaur,  Assistant  Vice  President and Portfolio  Manager of Security
   Management,  has co-managed the Corporate Bond Fund and Limited Maturity Bond
   Fund  portfolios  since June 1997.  Mr.  Eshnaur  has 15 years of  investment
   experience.  Prior to  joining  Security  Management  in 1997,  he  worked at
   Waddell  & Reed in the  positions  of  Assistant  Vice  President,  Assistant
   Portfolio   Manager,   Senior   Analyst,   Industry   Analyst   and   Account
   Administrator.  Mr.  Eshnaur  earned a bachelor  of arts  degree in  Business
   Administration  from Coe  College  and an M.B.A.  degree in Finance  from the
   University of Missouri - Kansas City.

PERFORMANCE  OF  DIVERSIFIED  INCOME  FUND - The bar chart and table shown below
provide an indication of the risks of investing in the  Diversified  Income Fund
by showing  (on a calendar  year basis)  changes in  Diversified  Income  Fund's
annual total return from year to year and by showing (on a calendar  year basis)
how  Diversified  Income Fund's average annual returns for one year,  five years
and ten years  compare to those of a broad-based  securities  market index - the
Lehman Brothers Aggregate Bond Index. The information in the bar chart and table
reflects  the  Fund's  performance  prior to its  recent  change  of  investment
policies.  The  information in the bar chart is based on the  performance of the
Class A shares of  Diversified  Income  Fund,  although  the bar chart  does not
reflect  the  deduction  of the sales  load on Class A shares.  If the bar chart
included the sales load, returns would be less than those shown. The Fund's past
performance is not necessarily an indication of how the Fund will perform in the
future.

                  [BAR GRAPH PLOTTED FROM DATA IN TABLE BELOW]

1990     1991    1992     1993    1994     1995    1996    1997    1998    1999
- ----     ----    ----     ----    ----     ----    ----    ----    ----    ----
9.80%   13.80%   5.00%   10.90%  -6.50%   21.86%   1.26%   9.19%   9.09%  -3.60%

*During the period shown in the chart, the Fund's best quarterly performance was
 7.34% for the  quarter  ended June 30,  1995,  and the Fund's  worst  quarterly
 performance was -3.92% for the quarter ended March 31, 1994.

The table below shows the average  annual total  returns of  Diversified  Income
Fund if you  average  out  actual  performance  over  various  lengths  of time,
compared to the Lehman Brothers  Aggregate Bond Index, an unmanaged  index.  The
index has an inherent  performance  advantage over the  Diversified  Income Fund
since it has no cash in its  portfolio,  imposes no sales  charges and incurs no
operating  expenses.  An  investor  cannot  invest  directly  in an  index.  The
Diversified  Income  Fund's  performance  reflected  in the  table  assumes  the
deduction of the maximum sales charge in all cases.

- --------------------------------------------------------------------------------
AVERAGE ANNUAL TOTAL RETURNS for the periods ended December 31, 1999
- --------------------------------------------------------------------------------
                                                                        SINCE
                                                                      INCEPTION
                                                                      OF CLASS B
                                  1 YEAR     5 YEARS     10 YEARS     (10/19/93)
Diversified Income, Class A(1)    -8.23%      6.17%        6.35%          ---
Diversified Income, Class B(2)    -9.36%      5.79%         ---          3.20%
Lehman Brothers Aggregate
  Bond Index(3)                   -0.83%      0.00%        0.00%         0.00%
- --------------------------------------------------------------------------------
(1)  Reflects deduction of sales charge of 4.75%.

(2)  Reflects  deduction of a deferred  sales charge of 5% for the 1-year and 2%
     for the 5-year returns.

(3)  The Lehman  Brothers  Aggregate Bond Index is comprised of debt  securities
     which  include  U.S.  Government  securities,  corporate  debt  securities,
     asset-backed securities,  mortgage-backed securities and total return swaps
     and is included due to the Fund's recent change of investment policies.
- --------------------------------------------------------------------------------

The table  below  shows the  performance  of  Diversified  Income  Fund if sales
charges were not reflected.

- --------------------------------------------------------------------------------
AVERAGE ANNUAL TOTAL RETURNS for the periods ended December 31, 1999
- --------------------------------------------------------------------------------
                                                                      SINCE
                                                                    INCEPTION
                                                                    OF CLASS B
                                1 YEAR     5 YEARS     10 YEARS     (10/19/93)
Diversified Income, Class A     -3.60%      7.22%        6.86%         ---
Diversified Income, Class B     -4.59%      6.10%         ---         3.20%
- --------------------------------------------------------------------------------

Additional  information about Diversified  Income Fund is included in Appendix B
to this Proxy Statement/Prospectus.

INFORMATION ABOUT THE REORGANIZATION

THE REORGANIZATION  PLAN - The Reorganization  Plan provides for the transfer of
all of the assets and  liabilities  of each of  Corporate  Bond Fund and Limited
Maturity Bond Fund to Diversified Income Fund solely in exchange for Class A and
Class B shares in  Diversified  Income  Fund.  Each of  Corporate  Bond Fund and
Limited Maturity Bond Fund will distribute the shares of Diversified Income Fund
received in the exchange to its  shareholders,  and then Corporate Bond Fund and
Limited Maturity Bond Fund will be liquidated.

After the  Reorganization,  each  shareholder of Corporate Bond Fund and Limited
Maturity  Bond  Fund  will own  shares  in  Diversified  Income  Fund  having an
aggregate value equal to the aggregate value of each respective  class of shares
of Corporate Bond Fund and Limited  Maturity Bond Fund held by that  shareholder
as of the  close  of  business  on  the  business  day  preceding  the  Closing.
Shareholders of Class A and B shares of Corporate Bond Fund and Limited Maturity
Bond Fund will receive shares of the corresponding  Class of Diversified  Income
Fund. In the interest of economy and convenience,  shares of Diversified  Income
Fund generally will not be represented by physical certificates.

Until the Closing, shareholders of Corporate Bond Fund and Limited Maturity Bond
Fund  will  continue  to be able to redeem  their  shares.  Redemption  requests
received  after  the  Closing  will  be  treated  as  requests  received  by the
Diversified  Income  Fund  for the  redemption  of its  shares  received  by the
shareholder in the Reorganization.

The  obligations  of the Funds  under the  Reorganization  Plan are  subject  to
various  conditions,  including  approval  of the  shareholders  of  each of the
Corporate Bond Fund and Limited Maturity Bond Fund. The Reorganization Plan also
requires that the Funds take, or cause to be taken, all actions, and do or cause
to be done, all things reasonably  necessary,  proper or advisable to consummate
and make effective the transactions contemplated by the Reorganization Plan. The
AgreementReorganization  Plan  may be  terminated  by  mutual  agreement  of the
parties or on certain other grounds. For a complete description of the terms and
conditions of the Reorganization, see the Reorganization Plan at Appendix A.

REASONS FOR THE REORGANIZATION - The Funds have similar  investment  objectives,
strategies  and  risks  and are  relatively  small in asset  size.  Because  the
Corporate Bond Fund and Limited  Maturity Bond Fund may invest in  substantially
the  same  types of  securities  as  Diversified  Income  Fund,  the  Funds  are
duplicative in the same group of funds. In addition,  the  reorganization  would
create  a  larger  Fund,  which  should  benefit  shareholders  of the  Funds by
spreading costs across a larger, combined asset base. Also, a larger fund offers
the  benefit of a more  diversified  portfolio  of  securities  and may  improve
trading efficiency.  Based upon these considerations,  the Board of Directors of
Security Income Fund determined that the Funds should be reorganized.

The proposed  Reorganization was presented to the Board of Directors of Security
Income Fund for  consideration  and approval at a meeting held February 4, 2000.
For the reasons  discussed below, the Directors,  including all of the Directors
who are not  "interested  persons" (as defined in the Investment  Company Act of
1940) of Security Income Fund, determined that the interests of the shareholders
of the  respective  Funds  would  not be  diluted  as a result  of the  proposed
Reorganization,  and that the proposed  Reorganization was in the best interests
of each of the Funds and its shareholders.

The  Reorganization  would allow shareholders of Corporate Bond Fund and Limited
Maturity  Bond  Fund to  continue  to  participate  in a  professionally-managed
portfolio which invests primarily in investment grade debt securities.  As Class
A and Class B shareholders of Diversified  Income Fund, these shareholders would
continue to be able to exchange  into other mutual funds in the larger  Security
Group of  Mutual  Funds  that  offer  the same  class of  shares  in which  such
shareholder  is  currently  invested.  A list of the current  Security  Group of
Mutual Funds, and their available classes, is attached as Appendix C.

BOARD  CONSIDERATION  - The Board of  Directors  of  Security  Income  Fund,  in
recommending the proposed transaction, considered a number of factors, including
the following:

1.  expense ratios and information regarding fees and expenses of Corporate Bond
    Fund, Limited Maturity Bond Fund and Diversified Income Fund;

2.  estimates  that show that combining the Funds should result in lower expense
    ratios because of economies of scale;

3.  elimination  of  duplication  of costs and  inefficiencies  of having  three
    similar funds;

4.  the  Reorganization  would not dilute the  interests  of the Funds'  current
    shareholders;

5.  the relative investment  performance and risks of Diversified Income Fund as
    compared to Corporate Bond Fund and Limited Maturity Bond Fund;

6.  the similarity of Diversified Income Fund's investment objectives,  policies
    and  restrictions to those of Corporate Bond Fund and Limited  Maturity Bond
    Fund and the fact that the Funds are duplicative within the overall group of
    funds;

7.  the tax-free nature of the Reorganization to Corporate Bond Fund and Limited
    Maturity Bond Fund and their shareholders.

THE BOARD OF DIRECTORS OF SECURITY INCOME FUND  RECOMMENDS THAT  SHAREHOLDERS OF
THE CORPORATE BOND FUND AND LIMITED  MATURITY BOND FUND,  RESPECTIVELY,  APPROVE
THE REORGANIZATION.

TAX  CONSIDERATIONS  - The  Reorganization  is  intended  to qualify for Federal
income  tax  purposes  as a tax-free  reorganization  under  Section  368 of the
Internal Revenue Code of 1986, as amended (the "Code"). Accordingly, pursuant to
this treatment, neither the Corporate Bond Fund, Limited Maturity Bond Fund, nor
their respective  shareholders,  nor the Diversified  Income Fund is expected to
recognize any gain or loss for federal income tax purposes from the transactions
contemplated  by the  Reorganization  Plan. As a condition to the closing of the
Reorganization,  the Funds will  receive an opinion from the law firm of Dechert
Price & Rhoads to the effect that the Reorganization  will qualify as a tax-free
reorganization  for Federal  income tax purposes.  That opinion will be based in
part upon  certain  assumptions  and upon  certain  representations  made by the
Funds.

Immediately  prior to the  Reorganization,  each of the Corporate  Bond Fund and
Limited Maturity Bond Fund will pay a dividend or dividends which, together with
all previous dividends, will have the effect of distributing to their respective
shareholders  all of the Corporate Bond Fund's and Limited  Maturity Bond Fund's
investment  company  taxable  income for taxable years ending on or prior to the
Reorganization (computed without regard to any deduction for dividends paid) and
all of its net capital  gains,  if any,  realized in taxable  years ending on or
prior to the  Reorganization  (after  reduction for any  available  capital loss
carryforward).  Such  dividends  will be included  in the taxable  income of the
Corporate Bond Fund's and Limited Maturity Bond Fund's shareholders.

As of December  31,  1999,  Corporate  Bond Fund had  accumulated  capital  loss
carryforwards in the amount of approximately  $12,374,110,  and Limited Maturity
Bond Fund in the  amount of  approximately  $10,661.  After the  Reorganization,
these losses will be available to Diversified  Income Fund to offset its capital
gains,  although the amount of these losses which may offset  Diversified Income
Fund's  capital  gains in any  given  year may be  limited.  As a result of this
limitation,  it is possible that Diversified  Income Fund may not be able to use
these losses as rapidly as Corporate  Bond Fund and Limited  Maturity  Bond Fund
might have,  and part of these  losses may not be useable at all. The ability of
Diversified Income Fund to absorb losses in the future depends upon a variety of
factors  that cannot be known in advance,  including  the  existence  of capital
gains against which these losses may be offset. In addition, the benefits of any
capital loss  carryforwards  currently are  available  only to  shareholders  of
Corporate  Bond Fund and Limited  Maturity  Bond Fund,  respectively.  After the
Reorganization,  however,  these  benefits  will  inure  to the  benefit  of all
shareholders of Diversified Income Fund.

EXPENSES OF THE  REORGANIZATION  - The Funds will bear the expenses  relating to
the proposed Reorganization, including but not limited to the costs of the proxy
solicitation, which will be allocated ratably on the basis of their relative net
asset values immediately before Closing.

ADDITIONAL INFORMATION ABOUT THE FUNDS

FORM OF  ORGANIZATION - Each of the Funds is a series of Security Income Fund, a
Kansas  corporation.  Security  Income Fund is governed by a Board of Directors,
which consists of six directors.

DIVIDENDS AND OTHER DISTRIBUTIONS - Each Fund pays dividends from net investment
income on a monthly basis,  and  distributes net capital gains, if any, at least
annually.  Dividends and distributions of each Fund are automatically reinvested
in  additional  shares  of  the  respective  class  of  that  Fund,  unless  the
shareholder elects to receive distributions in cash.

If the  Reorganization  Plan is approved by  shareholders of Corporate Bond Fund
and Limited Maturity Bond Fund, then as soon as practicable  before the Closing,
each of  Corporate  Bond  Fund  and  Limited  Maturity  Bond  Fund  will pay its
shareholders a cash distribution of all undistributed 2000 net investment income
and undistributed realized net capital gains.

CAPITALIZATION   -  The  following   table  shows  on  an  unaudited  basis  the
capitalization  of each Fund as of December 31, 1999 and on a PRO FORMA basis as
of December 31, 1999, giving effect to the Reorganization:

- --------------------------------------------------------------------------------
                                                  NET ASSET           SHARES
                               NET ASSETS      VALUE PER SHARE      OUTSTANDING
- --------------------------------------------------------------------------------
DIVERSIFIED INCOME FUND
   Class A                     $12,722,594          $4.52           2,812,887
   Class B                      $2,355,592          $4.51             522,448
CORPORATE BOND FUND
   Class A                     $49,476,637          $6.47           7,645,684
   Class B                      $9,137,794          $6.51           1,404,036
LIMITED MATURITY BOND FUND
   Class A                      $5,570,226          $9.57             581,851
   Class B                      $1,325,086          $9.54             138,869
PRO FORMA - DIVERSIFIED
INCOME INCLUDING CORPORATE
BOND AND LIMITED MATURITY
BOND FUNDS
   Class A                     $67,769,457          $4.52          14,993,243
   Class B                     $12,818,472          $4.51           2,842,377
- --------------------------------------------------------------------------------

GENERAL INFORMATION ABOUT THE PROXY STATEMENT

SOLICITATION  OF PROXIES - Proxies  are being  solicited  at the  request of the
Board of  Directors.  Solicitation  of proxies is being  made  primarily  by the
mailing of this Notice and Proxy Statement with its enclosures on or about April
__, 2000.  Shareholders  of Corporate  Bond Fund and Limited  Maturity Bond Fund
whose shares are held by nominees,  such as brokers,  can vote their  proxies by
contacting their respective  nominee. In addition to the solicitation of proxies
by mail, employees of Security Management and its affiliates, without additional
compensation,  may  solicit  proxies  in  person  or  by  telephone,  telegraph,
facsimile,   or  oral  communication.   The  Funds  have  retained   Shareholder
Communications  Corporation,  a professional  proxy solicitation firm, to assist
with any necessary solicitation of proxies.  Shareholders of Corporate Bond Fund
and  Limited   Maturity  Bond  Fund  may  receive  a  telephone  call  from  the
professional proxy solicitation firm asking the shareholder to vote.

A shareholder may revoke the accompanying  proxy at any time prior to its use by
filing with Corporate Bond Fund or Limited Maturity Bond Fund, as applicable,  a
written revocation or duly executed proxy bearing a later date. In addition, any
shareholder  who attends the Meeting of Corporate Bond Fund or Limited  Maturity
Bond Fund, as applicable,  in person may vote by ballot at the Meeting,  thereby
canceling any proxy  previously  given.  The persons  named in the  accompanying
proxy  will  vote  as  directed  by the  proxy,  but in the  absence  of  voting
directions in any proxy that is signed and  returned,  they intend to vote "FOR"
the  Reorganization  proposal and may vote in their  discretion  with respect to
other  matters not now known to the Board of Directors  of Security  Income Fund
that may be presented at the respective Meetings.

VOTING  RIGHTS - Shares of the Funds entitle their holders to one vote per share
as to any matter on which the holder is  entitled to vote,  and each  fractional
share  shall  be  entitled  to a  proportionate  fractional  vote.  Shares  have
cumulative voting rights and no preemptive or subscription rights.

Shareholders  of each of the Corporate  Bond and Limited  Maturity Bond Funds at
the close of business on February 28, 2000 (the "Record  Date") will be entitled
to be present and give  voting  instructions  for the Funds at their  respective
Meetings  with respect to their  shares owned as of that Record Date.  As of the
Record Date,  _________  shares of the Corporate Bond Fund were  outstanding and
entitled to vote and  _________  shares of the Limited  Maturity  Bond Fund were
outstanding and entitled to vote.

Approval of the  Reorganization  with respect to each of Corporate Bond Fund and
Limited  Maturity Bond Fund requires the  affirmative  vote of a majority of the
outstanding  shares of that Fund. In the event that the shareholders of only one
of  the   Corporate   Bond  and  Limited   Maturity   Bond  Funds   approve  the
Reorganization,   that   particular   Fund  whose   shareholders   approved  the
Reorganization  would be reorganized into Diversified  Income Fund. The Fund not
approving the Reorganization may continue to operate as a separate entity.

Each of Corporate Bond Fund and Limited Maturity Bond Fund must have a quorum to
conduct  its  business  at the  Special  Meeting.  The  holders of a MAJORITY of
outstanding  shares present in person or by proxy shall constitute a quorum.  In
the  absence  of a quorum,  a  majority  of  outstanding  shares of either  Fund
entitled to vote,  in person or by proxy,  may adjourn the meeting  from time to
time until a quorum shall be present.  An  adjournment of the Meeting for one of
the Funds shall not prevent the other Fund from holding its Meeting.

If a shareholder abstains from voting as to any matter, or if a broker returns a
"non-vote" proxy, indicating a lack of authority to vote on a matter, the shares
represented  by the abstention or non-vote will be deemed present at the Meeting
for purposes of determining a quorum. However,  abstentions and broker non-votes
will not be deemed  represented at the Meeting for purposes of  calculating  the
vote on any matter.  As a result, an abstention or broker non-vote will have the
same effect as a vote  against the  Reorganization.  Prior to the  Meeting,  the
Funds  expect that  broker-dealer  firms  holding  their  shares of the Funds in
"street name" for their  customers will request voting  instructions  from their
customers and beneficial owners.

To the  knowledge  of Security  Income Fund,  as of August 31, 1999,  no current
Director of Security  Income Fund owns 1% or more of the  outstanding  shares of
the Corporate  Bond Fund or Limited  Maturity Bond Fund,  respectively,  and the
officers and Directors of Security Income Fund own, as a group,  less than 1% of
the shares of the Corporate Bond Fund and Limited Maturity Bond Fund.

Appendix D hereto  lists the  persons  that,  as of  February  28,  2000,  owned
beneficially,  or of record 5% or more of the  outstanding  shares of  Corporate
Bond Fund or Limited Maturity Bond Fund.

OTHER  MATTERS TO COME BEFORE THE MEETING - The Funds do not know of any matters
to be  presented  at the  Meeting  other  than  those  described  in this  Proxy
Statement/Prospectus. If other business should properly come before the Meeting,
the proxy holders will vote thereon in accordance with their best judgment.

SHAREHOLDER  PROPOSALS  - The  Funds are not  required  to hold  regular  annual
meetings and, in order to minimize  their costs,  do not intend to hold meetings
of  shareholders  unless so required by applicable law,  regulation,  regulatory
policy or if otherwise deemed advisable by the Funds'  management.  Therefore it
is not  practicable  to specify a date by which  shareholder  proposals  must be
received in order to be  incorporated  in an  upcoming  proxy  statement  for an
annual meeting.

INFORMATION  ABOUT THE FUNDS - Proxy  materials,  reports and other  information
filed  by the  Funds  can be  inspected  and  copied  at  the  Public  Reference
Facilities  maintained by the SEC at 450 Fifth Street,  N.W.,  Washington,  D.C.
20549; 7 World Trade Center,  Suite 1300, New York, New York 10048; and 500 West
Madison Street, Suite 1400, Chicago, Illinois 60661. Copies of such material can
also be obtained from the Public  Reference  Branch,  Office of Consumer Affairs
and Information Services,  Securities and Exchange Commission,  Washington, D.C.
20549 at prescribe  rates. The SEC maintains an Interntet World Wid Web site (at
http://www.sec.gov) which contains other information about the Funds.

REPORTS TO SHAREHOLDERS - Security  Management will furnish,  without charge,  a
copy of the most recent Annual Report regarding the Funds upon request. Requests
for such reports  should be directed to Security  Management  at 700 SW Harrison
Street, Topeka, KS 66636 or at (800) 888-2461.

IN ORDER THAT THE PRESENCE OF A QUORUM AT THE  MEETINGS  MAY BE ASSURED,  PROMPT
EXECUTION  AND RETURN OF THE  ENCLOSED  PROXY IS  REQUESTED.  A  SELF-ADDRESSED,
POSTAGE-PAID ENVELOPE IS ENCLOSED FOR YOUR CONVENIENCE.

                                                           Amy J. Lee, Secretary


April __, 2000
700 SW Harrison
Topeka, KS 66636
<PAGE>
                                   APPENDIX A

                         FORM OF PLAN OF REORGANIZATION


THIS PLAN OF  REORGANIZATION  (the  "Plan")  is  adopted as of this _____ day of
_____________,  2000, by Security Income Fund (the "Company") with its principal
place of business at 700 SW Harrison,  Topeka,  Kansas 66636-0001,  on behalf of
Security  Diversified  Income Fund (the "Acquiring  Fund"), a separate series of
the  Company,  Security  Limited  Maturity  Bond Fund (an  "Acquired  Fund"),  a
separate  series of the  Company,  and  Security  Corporate  Bond Fund  (also an
"Acquired Fund"), another separate series of the Company.

This Plan is  intended  to be and is  adopted  as a plan of  reorganization  and
liquidation  within  the  meaning  of Section  368(a)(1)  of the  United  States
Internal Revenue Code of 1986, as amended (the "Code").  The reorganization (the
"Reorganization")  will  consist  of the  transfer  of all of the assets of each
Acquired Fund to the Acquiring  Fund in exchange  solely for Class A and Class B
voting shares ($1.00 par value per share) of the Acquiring Fund (the  "Acquiring
Fund Shares"),  the assumption by the Acquiring Fund of all  liabilities of each
Acquired  Fund,  and  the  distribution  of the  Acquiring  Fund  Shares  to the
shareholders of the Acquired Funds in complete liquidation of each Acquired Fund
as provided herein,  all upon the terms and conditions  hereinafter set forth in
this Plan.

WHEREAS,  the  Company  is an  open-end,  registered  investment  company of the
management  type and each  Acquired  Fund owns  securities  which  generally are
assets of the character in which the Acquiring Fund is permitted to invest;

WHEREAS,  the Directors of the Company have  determined that the exchange of all
of the assets of each Acquired Fund for Acquiring Fund Shares and the assumption
of all  liabilities  of each Acquired Fund by the Acquiring  Fund is in the best
interests of the Acquiring Fund and its  shareholders  and that the interests of
the existing shareholders of the Acquiring Fund would not be diluted as a result
of this transaction;

WHEREAS, the Directors of the Company also have determined, with respect to each
Acquired  Fund,  that the exchange of all of the assets of the Acquired Fund for
Acquiring Fund Shares and the assumption of all liabilities of the Acquired Fund
by the  Acquiring  Fund is in the best  interests of the  Acquired  Fund and its
shareholders and that the interests of the existing shareholders of the Acquired
Fund would not be diluted as a result of this transaction; and

NOW,  THEREFORE,  the Company, on behalf of the Acquiring Fund and each Acquired
Fund separately, hereby approves the Plan on the following terms and conditions,
such terms and  conditions  applying  in full force to the  Reorganization  with
respect to each Acquired Fund:

1.   TRANSFER OF ASSETS OF THE ACQUIRED FUND TO THE  ACQUIRING  FUND IN EXCHANGE
     FOR  THE  ACQUIRING  FUND  SHARES,  THE  ASSUMPTION  OF ALL  ACQUIRED  FUND
     LIABILITIES AND THE LIQUIDATION OF THE ACQUIRED FUND

     1.1   Subject  to  the  requisite  approvals  of  the  shareholders  of the
           Acquired Fund and Acquiring  Fund and the other terms and  conditions
           herein  set  forth  and  on the  basis  of  the  representations  and
           warranties  contained  herein,  the Company will  transfer all of the
           Acquired  Fund's  assets,  as set  forth  in  paragraph  1.2,  to the
           Acquiring  Fund, and the Acquiring Fund agrees in exchange  therefor:
           (i) to deliver to the Acquired Fund the number of full and fractional
           Class A and Class B Acquiring Fund Shares  determined by dividing the
           value of the  Acquired  Fund's net assets with respect to each class,
           computed  in the  manner  and as of the time  and  date set  forth in
           paragraph  2.1, by the net asset value of one Acquiring Fund Share of
           the same  class,  computed  in the manner and as of the time and date
           set forth in paragraph 2.2; and (ii) to assume all liabilities of the
           Acquired  Fund.  Such  transactions  shall take place at the  closing
           provided for in paragraph 3.1 (the "Closing").

     1.2   The assets of the Acquired Fund to be acquired by the Acquiring  Fund
           shall  consist  of  all  assets  and  property,   including,  without
           limitation,  all cash, securities,  commodities and futures interests
           and dividends or interests  receivable that are owned by the Acquired
           Fund and any  deferred or prepaid  expenses  shown as an asset on the
           books  of the  Acquired  Fund on the  closing  date  provided  for in
           paragraph 3.1 (the "Closing Date").

     1.3   The  Acquired  Fund  will  endeavor  to  discharge  all of its  known
           liabilities and obligations  prior to the Closing Date. The Acquiring
           Fund shall also assume all of the  liabilities  of the Acquired Fund,
           whether  accrued or  contingent,  known or  unknown,  existing at the
           Valuation  Date.  On or as soon as  practicable  prior to the Closing
           Date, the Acquired Fund will declare and pay to its  shareholders  of
           record one or more dividends  and/or other  distributions  so that it
           will have  distributed  substantially  all (and in no event less than
           98%) of its  investment  company  taxable  income  (computed  without
           regard to any deduction for dividends  paid) and realized net capital
           gain, if any, for the current taxable year through the Closing Date.

     1.4   Immediately  after the  transfer of assets  provided for in paragraph
           1.1,  the  Acquired  Fund  will  distribute  to the  Acquired  Fund's
           shareholders  of record  with  respect to each  class of its  shares,
           determined  as of  immediately  after  the close of  business  on the
           Closing Date (the "Acquired Fund Shareholders"),  on a pro rata basis
           within  that  class,  the  Acquiring  Fund  Shares of the same  class
           received by the Acquired  Fund  pursuant to  paragraph  1.1, and will
           completely  liquidate.  Such  distribution  and  liquidation  will be
           accomplished,  with  respect  to each  class of the  Acquired  Fund's
           shares, by the transfer of the Acquiring Fund Shares then credited to
           the account of the Acquired Fund on the books of the  Acquiring  Fund
           to open accounts on the share  records of the  Acquiring  Fund in the
           names of the Acquired  Fund  Shareholders.  The  aggregate  net asset
           value of Class A and Class B Acquiring  Fund Shares to be so credited
           to Class A and Class B Acquired Fund Shareholders shall, with respect
           to each  class,  be equal to the  aggregate  net  asset  value of the
           Acquired Fund shares of that same class owned by such shareholders on
           the Closing Date. All issued and  outstanding  shares of the Acquired
           Fund will  simultaneously  be canceled  on the books of the  Acquired
           Fund, although share certificates  representing  interests in Class A
           and Class B shares of the  Acquired  Fund will  represent a number of
           the same class of Acquiring  Fund Shares after the Closing  Date,  as
           determined in accordance  with Section 2.3. The Acquiring  Fund shall
           not issue certificates representing the Class A and Class B Acquiring
           Fund Shares in connection with such exchange.

     1.5   Ownership of Acquiring  Fund Shares will be shown on the books of the
           Acquiring Fund's transfer agent. Shares of the Acquiring Fund will be
           issued in the manner described in the Acquiring  Fund's  then-current
           prospectus and statement of additional information.

     1.6   Any reporting  responsibility of the Acquired Fund including, but not
           limited to, the responsibility for filing of regulatory reports,  tax
           returns,   or  other  documents  with  the  Securities  and  Exchange
           Commission (the "Commission"),  any state securities commission,  and
           any federal,  state or local tax  authorities  or any other  relevant
           regulatory  authority,  is and shall remain the responsibility of the
           Acquired Fund.

2.   VALUATION

     2.1   The  value  of the  Acquired  Fund's  assets  to be  acquired  by the
           Acquiring Fund hereunder  shall be the value of such assets  computed
           as of  immediately  after the close of business of the New York Stock
           Exchange and after the  declaration  of any  dividends on the Closing
           Date  (such  time and date being  hereinafter  called the  "Valuation
           Date"),  using the  valuation  procedures  set forth in the Company's
           Articles   of   Incorporation,   as   amended   (the   "Articles   of
           Incorporation"),  and the  then-current  prospectus  or  statement of
           additional  information  with  respect  to the  Acquiring  Fund,  and
           valuation procedures established by the Company's Board of Directors.

     2.2   The net asset  value of a Class A and Class B  Acquiring  Fund  Share
           shall be the net asset value per share  computed with respect to that
           class as of  immediately  after the close of business of the New York
           Stock  Exchange  and after the  declaration  of any  dividends on the
           Valuation  Date,  using  the  valuation  procedures  set forth in the
           Company's  Articles of Incorporation and the then-current  prospectus
           or statement of additional  information with respect to the Acquiring
           Fund, and valuation procedures  established by the Company's Board of
           Directors.

     2.3   The  number of the Class A and Class B  Acquiring  Fund  Shares to be
           issued  (including  fractional  shares,  if any) in exchange  for the
           Acquired  Fund's assets shall be determined with respect to each such
           class by  dividing  the value of the net assets  with  respect to the
           Class A and Class B shares of the Acquired  Fund, as the case may be,
           determined  using  the  same  valuation  procedures  referred  to  in
           paragraph  2.1,  by the net asset value of an  Acquiring  Fund Share,
           determined in accordance with paragraph 2.2.

     2.4   All  computations  of  value  shall be made by the  Acquiring  Fund's
           designated record keeping agent.

3.   CLOSING AND CLOSING DATE

     3.1   The Closing Date shall be April ___,  2000, or such other date as the
           parties may agree to in writing. All acts taking place at the Closing
           shall be deemed to take place  simultaneously as of immediately after
           the close of business on the Closing Date unless  otherwise agreed to
           by the parties. The close of business on the Closing Date shall be as
           of 4:00 p.m.,  Eastern Time. The Closing shall be held at the offices
           of the  Company or at such other  time  and/or  place as the Board of
           Directors or officers of the Company may designate.

     3.2   The  Company  shall  direct  UMB Bank,  N.A.,  as  custodian  for the
           Acquired  Fund (the  "Custodian"),  to  deliver,  at the  Closing,  a
           certificate  of an authorized  officer  stating that (i) the Acquired
           Fund's portfolio  securities,  cash, and any other assets  ("Assets")
           shall have been delivered in proper form to the Acquiring Fund within
           two  business  days  prior to or on the  Closing  Date,  and (ii) all
           necessary  taxes in  connection  with  the  delivery  of the  Assets,
           including all applicable  federal and state stock transfer stamps, if
           any,  have been paid or  provision  for  payment  has been made.  The
           Acquired Fund's portfolio securities  represented by a certificate or
           other written  instrument  shall be transferred  and delivered by the
           Acquired Fund as of the Closing Date for the account of the Acquiring
           Fund duly  endorsed in proper form for transfer in such  condition as
           to constitute good delivery  thereof.  The Acquired Fund shall direct
           the  Custodian  to  deliver  portfolio   securities  and  instruments
           deposited  with a  securities  depository,  as  defined in Rule 17f-4
           under the Investment Company Act of 1940, as amended (the "1940 Act")
           as of the Closing Date by book entry in accordance with the customary
           practices of such depositories and the custodian for Acquiring Fund.

     3.3   UMB  Bank,  N.A.,  as a  transfer  agent for the  Acquired  Fund (the
           "Transfer Agent"),  shall deliver, on behalf of the Acquired Fund, at
           the Closing a certificate of an authorized  officer  stating that its
           records  contain  the  names  and  addresses  of  the  Acquired  Fund
           Shareholders  and the number and percentage  ownership of outstanding
           Class A and Class B shares owned by each such shareholder immediately
           prior to the Closing.

     3.4   In the  event  that on the  Valuation  Date  (a) the New  York  Stock
           Exchange or another primary  trading market for portfolio  securities
           of the Acquiring Fund or the Acquired Fund shall be closed to trading
           or  trading  thereupon  shall be  restricted,  or (b)  trading or the
           reporting of trading on such Exchange or elsewhere shall be disrupted
           so that,  in the  judgment of the Board of  Directors of the Company,
           accurate  appraisal  of the value of the net assets of the  Acquiring
           Fund or the Acquired Fund is impracticable, the Closing Date shall be
           postponed  until the first  business  day after the day when  trading
           shall have been fully resumed and reporting shall have been restored.

4.   REPRESENTATIONS AND WARRANTIES

     4.1   The Company, on behalf of the Acquired Fund,  represents and warrants
           to the Acquiring Fund as follows:

           (a)  The Acquired Fund is duly  organized as a series of the Company,
                which is a corporation duly organized and validly existing under
                the laws of the State of Kansas,  with power under the Company's
                Articles  of  Incorporation  to own  all of its  properties  and
                assets  and  to  carry  on  its  business  as  it is  now  being
                conducted;

           (b)  The Company is a registered  investment  company classified as a
                management  company of the open-end type,  and its  registration
                with the Commission as an investment company under the 1940 Act,
                and the  registration  of its shares under the Securities Act of
                1933, as amended ("1933 Act"), are in full force and effect;

           (c)  No consent,  approval,  authorization,  or order of any court or
                governmental  authority is required for the  consummation by the
                Acquired Fund of the transactions  contemplated  herein,  except
                such as have been  obtained  under the 1933 Act, the  Securities
                Exchange  Act of 1934,  as amended (the "1934 Act") and the 1940
                Act, and such as may be required by state securities laws;

           (d)  The current  prospectus and statement of additional  information
                of the  Acquired  Fund  and each  prospectus  and  statement  of
                additional  information  of the  Acquired  Fund used  during the
                three  years  previous  to the  date of this  Plan  conforms  or
                conformed at the time of its use in all material respects to the
                applicable requirements of the 1933 Act and the 1940 Act and the
                rules and regulations of the Commission  thereunder and does not
                or did not at the time of its use include  any untrue  statement
                of a material  fact or omit to state any material  fact required
                to be  stated  therein  or  necessary  to  make  the  statements
                therein,  in light of the  circumstances  under  which they were
                made, not materially misleading;

           (e)  On the  Closing  Date,  the  Acquired  Fund  will  have good and
                marketable title to the Acquired Fund's assets to be transferred
                to the Acquiring  Fund pursuant to paragraph 1.2 and full right,
                power, and authority to sell, assign,  transfer and deliver such
                assets  hereunder free of any liens or other  encumbrances,  and
                upon delivery and payment for such assets,  the  Acquiring  Fund
                will acquire good and marketable  title  thereto,  subject to no
                restrictions  on  the  full  transfer  thereof,  including  such
                restrictions  as might arise  under the 1933 Act,  other than as
                disclosed to the Acquiring Fund;

           (f)  The Acquired Fund is not engaged  currently,  and the execution,
                delivery and performance of this Plan will not result,  in (i) a
                material violation of the Company's Articles of Incorporation or
                By-Laws or of any agreement,  indenture,  instrument,  contract,
                lease or other undertaking to which the Acquired Fund is a party
                or by  which  it is  bound,  or  (ii)  the  acceleration  of any
                obligation,   or  the  imposition  of  any  penalty,  under  any
                agreement, indenture,  instrument,  contract, lease, judgment or
                decree to which the  Acquired  Fund is a party or by which it is
                bound;

           (g)  The Acquired Fund has no material contracts or other commitments
                (other than this Plan) that will be terminated with liability to
                it prior to the Closing Date;

           (h)  Except as otherwise  disclosed in writing to and accepted by the
                Acquiring  Fund, no litigation or  administrative  proceeding or
                investigation  of or before  any court or  governmental  body is
                presently pending or, to its knowledge,  threatened  against the
                Acquired  Fund  or any of its  properties  or  assets  that,  if
                adversely determined,  would materially and adversely affect its
                financial condition or the conduct of its business. The Acquired
                Fund  knows of no facts  which  might  form  the  basis  for the
                institution of such proceedings and is not a party to or subject
                to the provisions of any order,  decree or judgment of any court
                or governmental  body which materially and adversely affects its
                business or its ability to consummate  the  transactions  herein
                contemplated;

           (i)  The   Statement  of  Assets  and   Liabilities,   Statements  of
                Operations   and  Changes  in  Net  Assets,   and   Schedule  of
                Investments  of the Acquired Fund at December 31, 1999 have been
                audited by Ernst & Young,  LLP,  independent  accountants.  Such
                statements are in accordance with generally accepted  accounting
                principles ("GAAP")  consistently  applied,  and such statements
                (copies  of which have been  furnished  to the  Acquiring  Fund)
                present  fairly,  in  all  material   respects,   the  financial
                condition  of the  Acquired  Fund as of such date in  accordance
                with GAAP, and there are no known contingent  liabilities of the
                Acquired  Fund  required to be reflected on the balance sheet or
                in the notes thereto;

           (j)  Since December 31, 1999, there has not been any material adverse
                change  in the  Acquired  Fund's  financial  condition,  assets,
                liabilities  or business,  other than  changes  occurring in the
                ordinary  course of business,  or any incurrence by the Acquired
                Fund of  indebtedness  maturing more than one year from the date
                such indebtedness was incurred, except as otherwise disclosed to
                and  accepted by the  Acquiring  Fund.  For the purposes of this
                subparagraph  (j), a decline in net asset value per share of the
                Acquired  Fund due to declines in market values of securities in
                the Acquired  Fund's  portfolio,  the discharge of Acquired Fund
                liabilities,  or the  redemption  of  Acquired  Fund  shares  by
                shareholders  of  the  Acquired  Fund  shall  not  constitute  a
                material adverse change;

           (k)  On the  Closing  Date,  all  Federal  and other tax  returns and
                reports of the Acquired  Fund required by law to have been filed
                by such date  (including any  extensions)  shall have been filed
                and are or will be correct  in all  material  respects,  and all
                Federal  and other taxes shown as due or required to be shown as
                due on  said  returns  and  reports  shall  have  been  paid  or
                provision shall have been made for the payment  thereof,  and to
                the best of the  Acquired  Fund's  knowledge,  no such return is
                currently  under audit and no assessment  has been asserted with
                respect to such returns;

           (l)  For each taxable year of its  operation  (including  the taxable
                year ending on the Closing Date),  the Acquired Fund has met the
                requirements of Subchapter M of the Code for  qualification as a
                regulated  investment  company  and has elected to be treated as
                such,  has been eligible to and has computed its Federal  income
                tax under Section 852 of the Code, and will have distributed all
                of its  investment  company  taxable income and net capital gain
                (as  defined in the Code) that has  accrued  through the Closing
                Date,  and before the Closing Date will have declared  dividends
                sufficient to distribute all of its investment  company  taxable
                income and net capital gain for the period ending on the Closing
                Date;

           (m)  All issued and outstanding  shares of the Acquired Fund are, and
                on the  Closing  Date  will be,  duly  and  validly  issued  and
                outstanding,  fully paid and  non-assessable  by the Company and
                have been  offered and sold in every  state and the  District of
                Columbia in compliance in all material  respects with applicable
                registration  requirements of the 1933 Act and state  securities
                laws. All of the issued and  outstanding  shares of the Acquired
                Fund will, at the time of Closing, be held by the persons and in
                the amounts set forth in the records of the Transfer  Agent,  on
                behalf of the Acquired  Fund, as provided in paragraph  3.3. The
                Acquired Fund does not have outstanding any options, warrants or
                other rights to  subscribe  for or purchase any of the shares of
                the  Acquired  Fund,  nor  is  there  outstanding  any  security
                convertible into any of the Acquired Fund shares;

           (n)  The  adoption and  performance  of this Plan will have been duly
                authorized prior to the Closing Date by all necessary action, if
                any, on the part of the Directors of the Company,  and,  subject
                to the approval of the  shareholders  of the Acquired Fund, this
                Plan will  constitute  a valid  and  binding  obligation  of the
                Acquired  Fund,   enforceable  in  accordance  with  its  terms,
                subject,   as  to   enforcement,   to  bankruptcy,   insolvency,
                reorganization,   moratorium  and  other  laws  relating  to  or
                affecting creditors' rights and to general equity principles;

           (o)  The  information to be furnished by the Acquired Fund for use in
                registration  statements,  proxy  materials and other  documents
                filed or to be filed with any federal, state or local regulatory
                authority  (including  the National  Association  of  Securities
                Dealers,  Inc.),  which may be necessary in connection  with the
                transactions contemplated hereby, shall be accurate and complete
                in all  material  respects  and  shall  comply  in all  material
                respects with Federal  securities and other laws and regulations
                thereunder applicable thereto.

     4.2   The Company, on behalf of the Acquiring Fund, represents and warrants
           to the Acquired Fund as follows:

           (a)  The Acquiring Fund is duly organized as a series of the Company,
                which is a corporation duly organized and validly existing under
                the laws of the State of Kansas,  with power under the Company's
                Articles  of  Incorporation  to own  all of its  properties  and
                assets  and  to  carry  on  its  business  as  it is  now  being
                conducted;

           (b)  The Company is a registered  investment  company classified as a
                management  company of the open-end type,  and its  registration
                with the Commission as an investment  company under the 1940 Act
                and the registration of its shares under the 1933 Act, including
                the shares of the Acquiring Fund, are in full force and effect;

           (c)  No consent,  approval,  authorization,  or order of any court or
                governmental  authority is required for the  consummation by the
                Acquiring Fund of the transactions  contemplated herein,  except
                such as have been obtained  under the 1933 Act, the 1934 Act and
                the  1940 Act and such as may be  required  by state  securities
                laws;

           (d)  The current  prospectus and statement of additional  information
                of the  Acquiring  Fund and each  prospectus  and  statement  of
                additional  information  of the  Acquiring  Fund used during the
                three  years  previous  to the  date of this  Plan  conforms  or
                conformed at the time of its use in all material respects to the
                applicable requirements of the 1933 Act and the 1940 Act and the
                rules and regulations of the Commission  thereunder and does not
                or did not at the time of its use include  any untrue  statement
                of a material  fact or omit to state any material  fact required
                to be  stated  therein  or  necessary  to  make  the  statements
                therein,  in light of the  circumstances  under  which they were
                made, not materially misleading;

           (e)  On the  Closing  Date,  the  Acquiring  Fund  will have good and
                marketable  title to the Acquiring  Fund's  assets,  free of any
                liens of other encumbrances,  except those liens or encumbrances
                as to which the Acquired Fund has received  notice and necessary
                documentation at or prior to the Closing;

           (f)  The Acquiring Fund is not engaged currently,  and the execution,
                delivery and performance of this Plan will not result,  in (i) a
                material violation of the Company's Articles of Incorporation or
                By-Laws or of any agreement,  indenture,  instrument,  contract,
                lease or other  undertaking  to which  the  Acquiring  Fund is a
                party or by which it is bound,  or (ii) the  acceleration of any
                obligation,   or  the  imposition  of  any  penalty,  under  any
                agreement, indenture,  instrument,  contract, lease, judgment or
                decree to which the Acquiring  Fund is a party or by which it is
                bound;

           (g)  Except as otherwise  disclosed in writing to and accepted by the
                Acquired  Fund, no litigation  or  administrative  proceeding or
                investigation  of or before  any court or  governmental  body is
                presently pending or, to its knowledge,  threatened  against the
                Acquiring  Fund or any of its  properties  or  assets  that,  if
                adversely determined,  would materially and adversely affect its
                financial  condition  or  the  conduct  of  its  business.   The
                Acquiring  Fund knows of no facts which might form the basis for
                the  institution  of such  proceedings  and is not a party to or
                subject to the  provisions  of any order,  decree or judgment of
                any court or  governmental  body which  materially and adversely
                affects  its   business  or  its  ability  to   consummate   the
                transactions herein contemplated;

           (h)  The   Statement  of  Assets  and   Liabilities,   Statements  of
                Operations and Changes in Net Assets and Schedule of Investments
                of the Acquiring  Fund at December 31, 1999 have been audited by
                Ernst & Young LLP, independent accountants.  Such statements are
                in  accordance  with  GAAP   consistently   applied,   and  such
                statements  (copies of which have been furnished to the Acquired
                Fund) present fairly,  in all material  respects,  the financial
                condition of the  Acquiring  Fund as of such date in  accordance
                with GAAP, and there are no known contingent  liabilities of the
                Acquiring  Fund required to be reflected on the balance sheet or
                in the notes thereto;

           (i)  Since December 31, 1999, there has not been any material adverse
                change in the  Acquiring  Fund's  financial  condition,  assets,
                liabilities  or business,  other than  changes  occurring in the
                ordinary course of business,  or any incurrence by the Acquiring
                Fund of  indebtedness  maturing more than one year from the date
                such indebtedness was incurred, except as otherwise disclosed to
                and  accepted  by  the  Acquired  Fund.  For  purposes  of  this
                subparagraph  (i), a decline in net asset value per share of the
                Acquiring Fund due to declines in market values of securities in
                the Acquiring Fund's portfolio,  the discharge of Acquiring Fund
                liabilities,  or the  redemption  of  Acquiring  Fund  Shares by
                shareholders  of the  Acquiring  Fund,  shall not  constitute  a
                material adverse change;

           (j)  On the  Closing  Date,  all  Federal  and other tax  returns and
                reports of the Acquiring Fund required by law to have been filed
                by such date  (including any  extensions)  shall have been filed
                and are or will be correct  in all  material  respects,  and all
                Federal  and other taxes shown as due or required to be shown as
                due on  said  returns  and  reports  shall  have  been  paid  or
                provision shall have been made for the payment  thereof,  and to
                the best of the  Acquiring  Fund's  knowledge  no such return is
                currently  under audit and no assessment  has been asserted with
                respect to such returns;

           (k)  For each taxable year of its  operation,  the Acquiring Fund has
                met  the   requirements   of   Subchapter  M  of  the  Code  for
                qualification as a regulated  investment company and has elected
                to be treated as such, has been eligible to and has computed its
                Federal   income  tax  under  Section  852  of  the  Code,   has
                distributed all of its investment company taxable income and net
                capital  gain (as defined in the Code) for periods  ending prior
                to the  Closing  Date,  and  will  do so for  the  taxable  year
                including the Closing Date;

           (l)  All issued and outstanding Acquiring Fund Shares are, and on the
                Closing Date will be, duly and validly  issued and  outstanding,
                fully  paid and  non-assessable  by the  Company  and have  been
                offered and sold in every state and the  District of Columbia in
                compliance in all material respects with applicable registration
                requirements  of the 1933 Act and  state  securities  laws.  The
                Acquiring Fund does not have  outstanding any options,  warrants
                or other rights to subscribe for or purchase any Acquiring  Fund
                Shares,  nor is there outstanding any security  convertible into
                any Acquiring Fund Shares;

           (m)  The adoption and  performance  of this Plan will have been fully
                authorized prior to the Closing Date by all necessary action, if
                any,  on the part of the  Directors  of the Company on behalf of
                the  Acquiring  Fund and this Plan will  constitute  a valid and
                binding  obligation  of  the  Acquiring  Fund,   enforceable  in
                accordance  with  its  terms,  subject,  as to  enforcement,  to
                bankruptcy,  insolvency,  reorganization,  moratorium  and other
                laws relating to or affecting  creditors'  rights and to general
                equity principles;

           (n)  The Class A and Class B  Acquiring  Fund Shares to be issued and
                delivered to the Acquired  Fund, for the account of the Acquired
                Fund  Shareholders,  pursuant to the terms of this Plan, will on
                the Closing Date have been duly  authorized  and, when so issued
                and delivered,  will be duly and validly  issued  Acquiring Fund
                Shares,  and  will  be  fully  paid  and  non-assessable  by the
                Company;

           (o)  The information to be furnished by the Acquiring Fund for use in
                the registration statements, proxy materials and other documents
                that  may be  necessary  in  connection  with  the  transactions
                contemplated  hereby  shall  be  accurate  and  complete  in all
                material respects and shall comply in all material respects with
                Federal  securities  and other laws and  regulations  applicable
                thereto; and

           (p)  That insofar as it relates to Company or the Acquiring Fund, the
                Registration  Statement  relating to the  Acquiring  Fund Shares
                issuable hereunder, and the proxy materials of the Acquired Fund
                to be included in the Registration Statement,  and any amendment
                or supplement to the foregoing, will, from the effective date of
                the  Registration  Statement  through the date of the meeting of
                shareholders of the Acquired Fund  contemplated  therein (i) not
                contain any untrue statement of a material fact or omit to state
                a material  fact  required to be stated  therein or necessary to
                make the statements therein, in light of the circumstances under
                which such  statements  were  made,  not  materially  misleading
                provided,  however,  that the  representations and warranties in
                this  subparagraph  (p)  shall  not  apply to  statements  in or
                omissions from the Registration  Statement made in reliance upon
                and in  conformity  with  information  that was furnished by the
                Acquired  Fund for use therein,  and (ii) comply in all material
                respects  with the  provisions of the 1933 Act, the 1934 Act and
                the 1940 Act and the rules and regulations thereunder.

5.   COVENANTS OF THE ACQUIRING FUND AND THE ACQUIRED FUND

     5.1   The  Acquiring  Fund and the  Acquired  Fund  each will  operate  its
           business  in the  ordinary  course  between  the date  hereof and the
           Closing  Date,  it being  understood  that  such  ordinary  course of
           business  will  include  the  declaration  and  payment of  customary
           dividends and  distributions,  and any other distribution that may be
           advisable.

     5.2   To the extent  required by  applicable  law,  the Company will call a
           meeting of the  shareholders  of the Acquired  Fund and the Acquiring
           Fund to consider  and act upon this Plan and to take all other action
           necessary to obtain approval of the transactions contemplated herein.

     5.3   The Acquired  Fund  covenants  that the Class A and Class B Acquiring
           Fund Shares to be issued  hereunder  are not being  acquired  for the
           purpose of making any distribution thereof,  other than in accordance
           with the terms of this Plan.

     5.4   The Acquired  Fund will assist the Acquiring  Fund in obtaining  such
           information as the Acquiring Fund reasonably  requests concerning the
           beneficial ownership of the Acquired Fund shares.

     5.5   Subject to the  provisions of this Plan,  the Acquiring  Fund and the
           Acquired Fund will each take, or cause to be taken,  all action,  and
           do or cause to be done, all things  reasonably  necessary,  proper or
           advisable  to  consummate   and  make   effective  the   transactions
           contemplated by this Plan.

     5.6   As soon as is reasonably  practicable after the Closing, the Acquired
           Fund  will  make  a  liquidating  distribution  to  its  shareholders
           consisting of the Class A and Class B Acquiring Fund Shares  received
           at the Closing.

     5.7   The  Acquiring  Fund  and  the  Acquired  Fund  shall  each  use  its
           reasonable  best efforts to fulfill or obtain the  fulfillment of the
           conditions precedent to effect the transactions  contemplated by this
           Plan as promptly as practicable.

     5.8   The Acquired Fund covenants  that it will,  from time to time, as and
           when reasonably  requested by the Acquiring Fund, execute and deliver
           or cause to be executed and delivered all such  assignments and other
           instruments,  and will take or cause to be taken such further  action
           as the Acquiring Fund may  reasonably  deem necessary or desirable in
           order  to vest in and  confirm  the  Acquiring  Fund's  title  to and
           possession  of all the assets and  otherwise  to carry out the intent
           and purpose of this Plan.

     5.9   The  Acquiring  Fund will use all  reasonable  efforts  to obtain the
           approvals and  authorizations  required by the 1933 Act, the 1940 Act
           and such of the state blue sky or securities laws as may be necessary
           in order to continue its operations after the Closing Date.

6.   CONDITIONS PRECEDENT TO OBLIGATIONS OF THE ACQUIRED FUND

     The  obligations  of the  Acquired  Fund  to  consummate  the  transactions
     provided for herein shall be subject,  at the Acquired Fund's election,  to
     the  performance  by the  Acquiring  Fund  of  all  the  obligations  to be
     performed by it hereunder on or before the Closing  Date,  and, in addition
     thereto, the following further conditions:

     6.1   All  representations  and  warranties of the  Acquiring  Fund and the
           Company  contained  in this  Plan  shall be true and  correct  in all
           material  respects as of the date  hereof and,  except as they may be
           affected by the  transactions  contemplated  by this Plan,  as of the
           Closing Date,  with the same force and effect as if made on and as of
           the Closing Date;

     6.2   The Company and the  Acquiring  Fund shall have  performed all of the
           covenants  and complied with all of the  provisions  required by this
           Plan  to be  performed  or  complied  with  by the  Company  and  the
           Acquiring Fund on or before the Closing Date; and

     6.3   The  Acquired  Fund and the  Acquiring  Fund shall have agreed on the
           number of full and fractional  Acquiring Fund Shares of each Class to
           be issued in connection with the Reorganization after such number has
           been calculated in accordance with paragraph 1.1.

7.   CONDITIONS PRECEDENT TO OBLIGATIONS OF THE ACQUIRING FUND

     The obligations of the Acquiring Fund to complete the transactions provided
     for herein  shall be subject,  at the  Acquiring  Fund's  election,  to the
     performance by the Acquired Fund of all of the  obligations to be performed
     by it hereunder on or before the Closing Date and, in addition thereto, the
     following conditions:

     7.1   All  representations  and  warranties of the Company and the Acquired
           Fund contained in this Plan shall be true and correct in all material
           respects as of the date hereof and, except as they may be affected by
           the  transactions  contemplated by this Plan, as of the Closing Date,
           with the same  force and  effect as if made on and as of the  Closing
           Date;

     7.2   The Company and the  Acquired  Fund shall have  performed  all of the
           covenants  and complied with all of the  provisions  required by this
           Plan to be performed or complied  with by the Company or the Acquired
           Fund on or before the Closing Date;

     7.3   The  Acquired  Fund and the  Acquiring  Fund shall have agreed on the
           number of full and fractional  Acquiring Fund Shares of each Class to
           be issued in connection with the Reorganization after such number has
           been calculated in accordance with paragraph 1.1;

     7.4   The  Acquired  Fund shall have  declared and paid a  distribution  or
           distributions  prior to the Closing that,  together with all previous
           distributions,   shall  have  the  effect  of   distributing  to  its
           shareholders (i) all of its investment company taxable income and all
           of its net realized  capital  gains,  if any, for the period from the
           close  of its  last  fiscal  year to 4:00  p.m.  Eastern  Time on the
           Closing; and (ii) any undistributed investment company taxable income
           and net  realized  capital  gains  from any  period to the extent not
           otherwise already distributed.

8.   FURTHER  CONDITIONS  PRECEDENT TO OBLIGATIONS OF THE ACQUIRING FUND AND THE
     ACQUIRED FUND

     If any of the  conditions  set forth  below do not  exist on or before  the
     Closing Date with respect to the Acquired Fund or the Acquiring  Fund,  the
     other  party  to  this  Plan  shall,  at its  option,  not be  required  to
     consummate the transactions contemplated by this Plan:

     8.1   The Plan and the  transactions  contemplated  herein  shall have been
           approved  by the  requisite  vote,  if  any,  of the  holders  of the
           outstanding  shares of the Acquired  Fund and the  Acquiring  Fund in
           accordance   with  the  provisions  of  the  Company's   Articles  of
           Incorporation,  By-Laws,  applicable Kansas law and the 1940 Act, and
           certified  copies of the  resolutions  evidencing such approval shall
           have been delivered to the Acquiring Fund.  Notwithstanding  anything
           herein to the contrary,  neither the Acquiring  Fund nor the Acquired
           Fund may waive the conditions set forth in this paragraph 8.1;

     8.2   On the Closing Date,  no action,  suit or other  proceeding  shall be
           pending  or,  to  its  knowledge,  threatened  before  any  court  or
           governmental agency in which it is sought to restrain or prohibit, or
           obtain damages or other relief in connection  with,  this Plan or the
           transactions contemplated herein;

     8.3   All  consents  of other  parties and all other  consents,  orders and
           permits of Federal,  state and local  regulatory  authorities  deemed
           necessary  by the  Acquiring  Fund or the  Acquired  Fund  to  permit
           consummation,   in  all  material   respects,   of  the  transactions
           contemplated hereby shall have been obtained, except where failure to
           obtain any such consent,  order or permit would not involve a risk of
           a  material  adverse  effect  on  the  assets  or  properties  of the
           Acquiring  Fund or the  Acquired  Fund,  provided  that either  party
           hereto may for itself waive any of such conditions;

     8.4   The Registration Statement shall have become effective under the 1933
           Act and no stop orders  suspending  the  effectiveness  thereof shall
           have been issued and, to the best knowledge of the parties hereto, no
           investigation   or  proceeding  for  that  purpose  shall  have  been
           instituted or be pending,  threatened or contemplated  under the 1933
           Act; and

     8.5   Dechert  Price & Rhoads  shall  deliver an opinion  addressed  to the
           Company  substantially  to the effect that, based upon certain facts,
           assumptions,  and  representations,  the transaction  contemplated by
           this Plan shall  constitute  a tax-free  reorganization  for  Federal
           income tax purposes,  unless, based on the circumstances  existing at
           the time of the Closing,  Dechert Price & Rhoads  determines that the
           transaction  contemplated  by this Plan does not qualify as such. The
           delivery of such opinion is conditioned upon receipt by Dechert Price
           &  Rhoads  of  representations  it  shall  request  of  the  Company.
           Notwithstanding  anything herein to the contrary, the Company may not
           waive the condition set forth in this paragraph 8.5.

9.   BROKERAGE FEES AND EXPENSES

     9.1   The Acquiring  Fund  represents  and warrants to the other that there
           are no  brokers or  finders  entitled  to  receive  any  payments  in
           connection with the transactions provided for herein.

     9.2   The expenses relating to the proposed  Reorganization will be paid by
           the  Acquired  Fund and the  Acquiring  Fund pro rata  based upon the
           relative  net assets of the Funds as of the close of  business on the
           record date for  determining  the  shareholders  of the Acquired Fund
           entitled   to  vote  on  the   Reorganization.   The   costs  of  the
           Reorganization shall include, but not be limited to, costs associated
           with  obtaining any necessary  order of exemption  from the 1940 Act,
           preparation of the Registration Statement,  printing and distributing
           the  Acquiring  Fund's  prospectus  and  the  Acquired  Fund's  proxy
           materials, legal fees, accounting fees, securities registration fees,
           and expenses of holding shareholders'  meetings.  Notwithstanding any
           of the  foregoing,  expenses  will in any  event be paid by the party
           directly  incurring  such  expenses  if and to the  extent  that  the
           payment  by the  other  party of such  expenses  would  result in the
           disqualification  of such party as a "regulated  investment  company"
           within the meaning of Section 851 of the Code.

10.  ENTIRE AGREEMENT; SURVIVAL OF WARRANTIES

     The representations,  warranties and covenants contained in this Plan or in
     any document  delivered  pursuant  hereto or in connection  herewith  shall
     survive the consummation of the transactions  contemplated  hereunder.  The
     covenants to be performed after the Closing shall survive the Closing.

11.  TERMINATION

     This Plan and the  transactions  contemplated  hereby may be terminated and
     abandoned by resolution of the Board of Directors, at any time prior to the
     Closing Date, if  circumstances  should develop that, in the opinion of the
     Board, make proceeding with the Plan inadvisable.

12.  AMENDMENTS

     This Plan may be amended, modified or supplemented in such manner as may be
     set forth in writing by the authorized  officers of the Company;  provided,
     however,  that  following  any  meeting of the  shareholders  called by the
     Acquired Fund pursuant to paragraph 5.2 of this Plan, no such amendment may
     have the effect of changing the  provisions for  determining  the number of
     the Class A or Class B Acquiring  Fund Shares to be issued to the  Acquired
     Fund  Shareholders  under this Plan to the  detriment of such  shareholders
     without their further approval.

13.  HEADINGS; GOVERNING LAW; ASSIGNMENT; LIMITATION OF LIABILITY

     13.1  The Article and  paragraph  headings  contained  in this Plan are for
           reference  purposes  only and shall not affect in any way the meaning
           or interpretation of this Plan.

     13.2  This Plan shall be governed by and construed in  accordance  with the
           laws of the  State of Kansas  without  regard  to its  principles  of
           conflicts of laws.

     13.3  This Plan shall bind and inure to the benefit of the  parties  hereto
           and their  respective  successors  and assigns,  but no assignment or
           transfer  hereof or of any rights or obligations  hereunder  shall be
           made by any party  without  the written  consent of the other  party.
           Nothing herein expressed or implied is intended or shall be construed
           to confer upon or give any person,  firm or  corporation,  other than
           the parties hereto and their respective  successors and assigns,  any
           rights or remedies under or by reason of this Plan.

     13.4  It is expressly agreed that the obligations of the parties  hereunder
           shall  not  be  binding  upon  any of  the  Directors,  shareholders,
           nominees,  officers,  agents, or employees of the Company personally,
           but  shall  bind only  property  of such  party.  The  execution  and
           delivery  by such  officers  shall not 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 property of each party.

IN WITNESS  WHEREOF,  the Board of Directors of the Company has caused this Plan
to be approved on behalf of the Acquiring Fund and the Acquired Funds.


                                             SECURITY INCOME FUND


                                             By:
                                                    ----------------------------
                                             Name:
                                             Title:
<PAGE>
                                   APPENDIX B

                        ADDITIONAL INFORMATION REGARDING
                             DIVERSIFIED INCOME FUND
                                  (THE "FUND")


SHAREHOLDER GUIDE

PURCHASE OPTIONS - This Proxy  Statement/Prospectus  relates to the two separate
classes of the Fund:  Class A and Class B, each of which represents an identical
interest in the Fund's investment portfolio, but is offered with different sales
charges and distribution fee (Rule 12b-1)  arrangements.  As described below and
elsewhere in this Proxy Statement/Prospectus, the contingent deferred sales load
structure and conversion characteristics of the Fund shares issued to you in the
Reorganization will be the same as those that applied to the Corporate Bond Fund
and/or Limited  Maturity Bond Fund shares held by you  immediately  prior to the
Reorganization,  and the period  that you held the  Corporate  Bond Fund  and/or
Limited  Maturity Bond Fund shares will be included in the holding period of the
Fund shares for purposes of  calculating  contingent  deferred sales charges and
determining  conversion  rights.  Purchases  of the shares of the Fund after the
Reorganization will be subject to the sales load structure and conversion rights
discussed below.

The  sales  charges  and  fees for  Class A and  Class B shares  are  shown  and
contrasted in the chart below.

- --------------------------------------------------------------------------------
                                                       CLASS A      CLASS B
- --------------------------------------------------------------------------------
Maximum Initial Sales Charge on Purchases              4.75%(1)     None
Contingent Deferred Sales Charge ("CDSC")              None(2)      5.00%(3)
Annual Distribution (12b-1) Fee and Service Fee(4)     0.25%        1.00%
Automatic Conversion to Class A                        N/A          8 Years(5)
- --------------------------------------------------------------------------------
(1)  Imposed upon purchase. Reduced for purchases of $50,000 and more.

(2)  For  investments  of $1 million or more,  a CDSC of 1% may be  assessed  on
     redemptions of shares that were purchased  without an initial sales charge.
     See "Class A shares: Initial Sales Charge Alternative."

(3)  Imposed upon  redemption  within 5 years from  purchase.  Fee has scheduled
     reductions after the first year. See "Class B shares: Deferred Sales Charge
     Alternative."

(4)  Annual asset-based distribution charge.

(5)  Class B shares of the Diversified Income Fund issued to shareholders of the
     Corporate Bond Fund and/or Limited Maturity Bond Fund in the Reorganization
     will convert to Class A shares in the eighth year from the original date of
     purchase of the Class B shares of the  Corporate  Bond Fund and/or  Limited
     Maturity Bond Fund, as applicable.
- --------------------------------------------------------------------------------

The relative  impact of the initial  sales charges and ongoing  annual  expenses
will depend on the length of time a share is held.

CLASS A SHARES.

INITIAL SALES CHARGE ALTERNATIVE. Class A shares of the Fund are sold at the net
asset value  ("NAV") per share in effect plus a sales charge as described in the
following  table. For waivers or reductions of the Class A shares sales charges,
see "Special Purchases without a Sales Charge" and "Reduced Sales Charges."

- ------------------------------------------------------------------------------
                          AS A % OF        AS A %       DEALERS' REALLOWANCE
YOUR INVESTMENT         OFFERING PRICE     OF NAV     AS A % OF OFFERING PRICE
- ------------------------------------------------------------------------------
Less than $50,000           4.75%          4.99%                4.00%
$50,000 - $99,999           3.75%          3.90%                3.00%
$100,000 - $249,999         2.75%          2.83%                2.20%
$250,000 - $999,999         1.75%          1.78%                1.40%
$1,000,000 or more          None           None              (See below)
- ------------------------------------------------------------------------------

There is no initial sales charge on purchases of  $1,000,000  or more.  However,
the Distributor  will pay Authorized  Dealers of record  commissions as follows:
1.00% on purchases of $1,000,000 up to  $5,000,000,  plus 0.50% on amounts above
$5,000,000 up to $10,000,000,  plus 0.10% for any amount above  $10,000,000.  If
shares  are  redeemed  within  one year of  purchase,  a CDSC of  1.00%  will be
imposed.

REDUCED SALES CHARGES.  An investor may immediately  qualify for a reduced sales
charge  on a  purchase  of  Class A shares  of the  Fund or  other  funds in the
Security  Group of Mutual  Funds  which offer Class A shares,  by  completing  a
Statement of  Intention to purchase  Fund  shares.  Executing  the  Statement of
Intention  expresses  an  intention  to invest  during the next 13 months (or 36
months for purchases of $1,000,000 or more) a specified  amount,  which, if made
at one time,  would qualify for a reduced sales charge.  An amount equal to five
percent of the amount specified in the Statement of Intention will be restricted
within your account to cover  additional  sales  charges that may be due if your
actual total investment fails to qualify for the reduced sales charges.  See the
Statement of Additional Information for the Fund for details on the Statement of
Intention  option or contact  Security  Management  at (800)  888-2461  for more
information.

A sales  charge  may also be  reduced  by  taking  into  account  your  previous
purchases  of Class A shares  of the Funds or any  other  funds in the  Security
Group of Mutual Funds (excluding Security Cash Fund) ("Rights of Accumulation").
The reduced sales charges apply to quantity  purchases  made at one time or on a
cumulative  basis  over any  period of time.  See the  Statement  of  Additional
Information  for the Fund for details or contact  Security  Management  at (800)
888-2461 for more information.

SPECIAL PURCHASE WITHOUT A SALES CHARGE.  Class A shares may be purchased at NAV
without a sales charge by certain  individuals and institutions.  For additional
information,  contact Security  Management at (800) 888-2461,  or see the Fund's
Statement of Additional Information.

CLASS B SHARES

DEFERRED SALES CHARGE ALTERNATIVE.  Class B shares may be purchased at their NAV
per share  without  an initial  sales  charge at the time of  purchase.  Class B
shares that are redeemed within five years of purchase, however, will be subject
to a CDSC as described in the table that follows. Class B shares of the Fund are
subject to a distribution  (12b-1) fee at an annual rate of 1.00% of the average
daily net assets of the Class,  which is higher  than the  distribution  fees of
Class A shares.  The  higher  distribution  (12b-1)  fees mean a higher  expense
ratio,  so Class B shares pay  correspondingly  lower  dividends  and may have a
lower NAV than Class A shares.  In connection with sales of Class B shares,  the
Distributor  compensates Authorized Dealers at a rate of 4% of purchase payments
subject to a CDSC.  The amount of the CDSC is  determined as a percentage of the
lesser  of the NAV of the  Class B shares at the time of  original  purchase  or
redemption.  No charge  will be  imposed  for any net  increase  in the value of
shares  purchased during the preceding six years in excess of the purchase price
of such shares or for shares  acquired  either by reinvestment of net investment
income dividends or capital gain distributions. The percentage used to calculate
the CDSC will depend on the number of years since you invested the dollar amount
being redeemed according to the following table:

                -----------------------------------------------
                YEAR OF REDEMPTION AFTER PURCHASE          CDSC
                -----------------------------------------------
                First ..................................    5%
                Second .................................    4%
                Third ..................................    3%
                Fourth .................................    3%
                Fifth ..................................    2%
                Sixth and following ....................    0%
                -----------------------------------------------

Class B shares will automatically  convert into Class A shares eight years after
purchase,  except that Class B shares of the Fund issued in connection  with the
Reorganization  with respect to Class B shares of the Corporate Bond Fund and/or
Limited  Maturity Bond Fund will convert to Class A shares eight years after the
purchase  of the  original  shares of the  Corporate  Bond Fund  and/or  Limited
Maturity Bond Fund, as applicable.  For  additional  information on the CDSC and
the conversion of Class B, see the Fund's Statement of Additional Information.

WAIVERS  OF CDSC.  The CDSC on Class A and Class B shares  will be waived in the
following cases. In determining whether a CDSC is applicable, it will be assumed
that  shares  held in the  shareholder's  account  that are not  subject to such
charge are redeemed first.

o  Upon the death of the  shareholder if shares are redeemed  within one year of
   the shareholder's death

o  Upon the disability of the shareholder prior to age 65 if shares are redeemed
   within one year of the shareholder  becoming disabled and the shareholder was
   not disabled when the shares were purchased

o  In connection  with required  minimum  distributions  from a retirement  plan
   qualified under Section 401(a), 401(k), 403(b) or 408 of the Internal Revenue
   Code

o  In connection  with  distributions  from  retirement  plans  qualified  under
   Section 401(a) or 401(k) of the Internal Revenue Code for:

   -  returns of excess contributions to the plan

   -  retirement of a participant in the plan

   -  a loan  from the plan  (loan  repayments  are  treated  as new  sales  for
      purposes of the deferred sales charge)

o  Upon the financial  hardship (as defined in regulations  under the Code) of a
   participant in a plan

o  Upon termination of employment of a participant in a plan

o  Upon any other permissible withdrawal under the terms of the plan.

If you think you may be eligible for a CDSC waiver,  contact Security Management
at (800) 888-2461.

REINSTATEMENT PRIVILEGE.  Class A shareholders who have redeemed their shares in
any fund in the Security  Group of Mutual Funds may reinvest  some or all of the
proceeds in the same share class within 30 days without a sales charge.  See the
Statement of Additional Information for the Fund for details or contact Security
Management at (800) 888-2461.

RULE 12B-1 PLAN. The Fund has a  distribution  plan pursuant to Rule 12b-1 under
the 1940 Act applicable to each class of shares of the Fund ("Rule 12b-1 Plan").
Under the Rule 12b-1 Plans,  the Distributor may receive from the Fund an annual
fee in  connection  with the  offering,  sale and  shareholder  servicing of the
Fund's Class A and Class B shares.

DISTRIBUTION  AND SERVICING  FEES.  As  compensation  for services  rendered and
expenses borne by the Distributor in connection with the  distribution of shares
of the Fund and services rendered to shareholders, the Fund pays the Distributor
servicing  fees and  distribution  fees up to the annual  rates set forth  below
(calculated as a percentage of the Fund's average daily net assets  attributable
to that class):

                 ----------------------------------------------
                             SERVICING FEE     DISTRIBUTION FEE
                 ----------------------------------------------
                 Class A         0.25%               None
                 Class B         0.25%              0.75%
                 ----------------------------------------------

Fees paid  under the Rule 12b-1  Plan may be used to cover the  expenses  of the
Distributor  from the sale of Class A and Class B shares of the Fund,  including
payments to Authorized  Dealers,  and for shareholder  servicing.  Because these
fees are paid out of the Fund's  assets on an  on-going  basis,  over time these
fees will increase the cost of your investment and may cost you more than paying
other types of sales charges.

Under the Rule 12b-1 Plan, ongoing payments will be made on a quarterly basis to
Authorized  Dealers for  distribution  and  shareholder  servicing  as set forth
below.

                 ----------------------------------------------
                             SERVICING FEE     DISTRIBUTION FEE
                 ----------------------------------------------
                 Class A         0.25%              0.00%
                 Class B         0.25%              0.00%
                 ----------------------------------------------

OTHER  EXPENSES.  In addition  to the  management  fee and other fees  described
previously,  the Fund pays other expenses, such as legal, audit, transfer agency
and custodian fees, proxy solicitation  costs, and the compensation of Directors
who  are not  affiliated  with  Security  Management.  Most  Fund  expenses  are
allocated  proportionately  among  all of the  outstanding  shares  of the Fund.
However,  the Rule  12b-1  Plan  fees  for each  class  of  shares  are  charged
proportionately only to the outstanding shares of that class.

PURCHASING  SHARES  - The  minimum  initial  investment  in the  Fund  is  $100.
Subsequent  investments  must be $100 (or $20 under an Accumulation  Plan).  The
Fund and the  Distributor  reserve  the  right to reject  any order to  purchase
shares. Purchase and sale requests are executed at the next NAV determined after
the order is received in proper form by the Transfer Agent or the Distributor.

PRICE OF SHARES.  When you buy shares, you pay the NAV plus any applicable sales
charge.  When you sell shares,  you receive the NAV minus any  applicable  CDSC.
Exchange orders are effected at NAV.

RETIREMENT  PLANS.  The Fund has available  tax-qualified  retirement  plans for
individuals,  prototype plans for the self-employed,  pension and profit sharing
plans for  corporations  and  custodial  accounts for employees of public school
systems and  organizations  meeting the requirements of Section 501(c)(3) of the
Internal Revenue Code. Further  information  concerning these plans is contained
in the Fund's  Statement of  Additional  Information.  For further  information,
contact Security Management at (800) 888-2461.

DETERMINATION  OF NET ASSET VALUE.  The NAV per share of the Fund is computed as
of the close of regular trading hours on the New York Stock Exchange (normally 3
p.m.  Central  time) on days when the  Exchange  is open.  The  Exchange is open
Monday through  Friday,  except on observation  of the following  holidays:  New
Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday,  Memorial
Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

The Fund's NAV is generally  based upon the market value of  securities  held in
the Fund's  portfolio.  If market  prices are not  available,  the fair value of
securities is determined using procedures  approved by the Board of Directors of
Security Income Fund.

EXCHANGE  PRIVILEGES AND  RESTRICTIONS.  Shareholders who own shares of the Fund
may exchange  those  shares for shares of another of the funds,  in the Security
Group of Mutual  Funds.  Exchanges may be made only in those states where shares
of the fund into which an  exchange  is to be made are  qualified  for sale.  No
service fee or sales charge is presently imposed on such an exchange.  Shares of
a  particular  class of the Fund may be  exchanged  only for  shares of the same
class of another  fund in the  Security  Group of Mutual  Funds or for shares of
Security Cash Fund, a money market fund,  which offers a single class of shares.
Any applicable CDSC will be imposed upon redemption and calculated from the date
of the  initial  purchase  without  regard to the time  shares were held in Cash
Fund.

For tax purposes,  an exchange is a sale of shares which may result in a taxable
gain or loss. Special rules may apply to determine the amount of gain or loss on
an  exchange  occurring  within  ninety  days after the  exchanged  shares  were
acquired.

Exchanges  of Class A shares of the Fund are made at net asset  value  without a
front-end  sales  charge  if:  (1) the  shares  have been  owned for at least 90
consecutive days prior to the exchange, (2) the shares were acquired pursuant to
a prior  exchange  from a  Security  Fund which  assessed a sales  charge on the
original  purchase,  or  (3)  the  shares  were  acquired  as a  result  of  the
reinvestment of dividends or capital gains  distributions.  Exchanges of Class A
shares,  other than those described  above, are made at net asset value plus the
sales  charge  described  in the  prospectus  of the other  Security  Fund being
acquired,  less the sales  charge  paid on the shares of the Fund at the time of
original purchase.

Shareholders  should contact the Fund before  requesting an exchange in order to
ascertain  whether  any  sales  charges  are  applicable  to  the  shares  to be
exchanged.  In effecting the exchanges of Fund shares, Security Management would
first cause to be exchanged  those shares that would not be subject to any sales
charges.  Exchanges  are made upon  receipt  of a  properly  completed  Exchange
Authorization form.

To  exchange   shares  by  telephone,   a   shareholder   must  hold  shares  in
non-certificate  form and must  either have  completed  the  Telephone  Exchange
section of the application or a Telephone Transfer  Authorization form which may
be  obtained  from  Security  Management.  The  exchange  privilege,   including
telephone  exchanges,  may be  changed  or  discontinued  at any time by  either
Security Management or the Fund upon 60 days' notice to shareholders.

SELLING  SHARES - Shares  of the Fund  will be  redeemed  at the NAV  (less  any
applicable CDSC and/or federal income tax  withholding)  next  determined  after
receipt  of a  redemption  request  in good  form on any day the New York  Stock
Exchange is open for business.  Any share certificates  representing fund shares
sold must be returned with a request to sell the shares.

SYSTEMATIC  WITHDRAWAL  PLAN.  You may  elect  to  receive  monthly,  quarterly,
semi-annual or annual  payments in any fixed amount in excess of $25, as long as
the account has a current value of at least $5,000. For additional  information,
contact  Security  Management at (800) 888-2461,  or see the Fund's Statement of
Additional Information.

PAYMENTS. Payments may be made by check. Redemption proceeds will be sent to the
shareholder(s)  of record at the  address  of record  within  seven  days  after
receipt  of a valid  redemption  request.  For a  charge  of $15  deducted  from
redemption  proceeds,  Security Management will provide a certified or cashier's
check, or send the redemption  proceeds by express mail, upon the  shareholder's
request.

MANAGEMENT OF THE FUND

INVESTMENT MANAGER - Security  Management,  each Fund's investment manager, is a
Kansas limited liability company.  On December 31, 1999, the aggregate assets of
all of the mutual funds under the investment  management of Security  Management
were approximately $6.3 billion.  Security Management has overall responsibility
for the management of the Funds.  Security  Income Fund and Security  Management
have entered into an agreement  that  requires  Security  Management  to provide
investment advisory,  statistical and research services to the Funds,  supervise
and arrange for the purchase and sale of securities on behalf of the Funds,  and
provide  for the  maintenance  and  compilation  of  records  pertaining  to the
investment  advisory  function.  The agreement  with Security  Management can be
canceled by the Board of Directors of Security  Income Fund upon 60 days written
notice.  Investment  management  fees are  computed  and accrued  daily and paid
monthly.  For the year ended December 31, 1999,  Diversified Income Fund did not
pay investment management fees to Security Management, which waived such fees.

PARENT  COMPANY AND  DISTRIBUTOR  - Security  Management  is  controlled  by its
members,  Security  Benefit Life Insurance  Company and Security  Benefit Group,
Inc.  ("SBG").  SBG is an  insurance  and  financial  services  holding  company
wholly-owned by Security  Benefit Life Insurance  Company,  700 Harrison Street,
Topeka,  Kansas 66636-0001.  Security Benefit Life, a life insurance company, is
incorporated under the laws of Kansas.  Security Management is a direct, and the
Distributor,  the Fund's  principal  underwriter,  is an indirect,  wholly owned
subsidiary of Security Benefit Life Insurance Company ("Security Benefit").

ADMINISTRATIVE AGENT - Security Management also acts as the administrative agent
for the Fund and as such performs administrative  functions and the bookkeeping,
accounting  and pricing  functions  for the Fund.  For these  services  Security
Management  receives,  on an annual  basis,  a fee of 0.09% of the  average  net
assets of the Fund, calculated daily and payable monthly.

Security  Management  also acts as the  transfer  agent  for the Fund.  As such,
Security  Management  performs all shareholder  servicing  functions,  including
transferring record ownership,  processing purchase and redemption transactions,
answering  inquiries,  mailing  shareholder  communications  and  acting  as the
dividend  disbursing agent. For these services,  the Investment Manager receives
an annual  maintenance fee of $8.00 per account,  a fee of $1.00 per shareholder
transaction, and a fee of $1.00 per dividend transaction.

PORTFOLIO  TRANSACTIONS  -  Security  Management  will  place  orders to execute
securities  transactions  that are designed to implement  the Fund's  investment
objectives and policies.  Security Management will use its reasonable efforts to
place all purchase and sale  transactions  with brokers and dealers  ("brokers")
that provide  "best  execution" of these  orders.  In placing  purchase and sale
transactions,  Security  Management may consider brokerage and research services
provided by a broker to Security Management or its affiliates,  and the Fund may
pay a commission for effecting a securities transaction that is in excess of the
amount  another broker would have charged if Security  Management  determines in
good faith that the amount of  commission is reasonable in relation to the value
of the brokerage and research services provided by the broker viewed in terms of
either that particular  transaction or the overall  responsibilities of Security
Management  with  respect to all  accounts as to which it  exercises  investment
discretion.  Security  Management may use all, none, or some of such information
and services in  providing  investment  advisory  services to each of the mutual
funds under its management, including the Fund. In addition, Security Management
also may  consider a broker's  sale of Fund  shares if  Security  Management  is
satisfied  that the Fund would receive best  execution of the  transaction  from
that broker.

Securities  held by the  Fund  may  also be held by  other  investment  advisory
clients  of  Security  Management,  including  other  investment  companies.  In
addition,  Security Management's parent company, Security Benefit, may also hold
some of the same securities as the Fund. When selecting  securities for purchase
or sale for a Fund,  Security  Management  may at the same time be purchasing or
selling the same securities for one or more of such other  accounts.  Subject to
Security Management's obligation to seek best execution, such purchases or sales
may be  executed  simultaneously  or  "bunched."  It is the  policy of  Security
Management not to favor one account over the other.  Any purchase or sale orders
executed  simultaneously  (which may also include orders from Security  Benefit)
are  allocated at the average price and as nearly as  practicable  on a pro rata
basis  (transaction  costs will also generally be shared on a pro rata basis) in
proportion to the amounts  desired to be purchased or sold by each  account.  In
those instances where it is not practical to allocate purchase or sale orders on
a pro  rata  basis,  then the  allocation  will be made on a  rotating  or other
equitable  basis.  While  it is  conceivable  that  in  certain  instances  this
procedure could  adversely  affect the price or number of shares involved in the
Fund's transaction,  it is believed that the procedure generally  contributes to
better overall execution of the Fund's portfolio transactions.

DIVIDENDS, DISTRIBUTIONS AND TAXES

DIVIDENDS AND DISTRIBUTIONS - The Fund pays its shareholders  dividends from its
net investment income monthly, and distributes any net capital gains that it has
realized, at least annually. Your dividends and distributions will be reinvested
in shares of the Fund, unless you instruct Security Management otherwise.  There
are no fees or sales charges on reinvestments.

FEDERAL TAXES - Fund  dividends and  distributions  are taxable to  shareholders
(unless your investment is in an Individual  Retirement Account ("IRA") or other
tax-advantaged  retirement  account)  whether you  reinvest  your  dividends  or
distributions or take them in cash.

In addition to federal tax,  dividends and distributions may be subject to state
and local  taxes.  If a Fund  declares a dividend  or  distribution  in October,
November or December but pays it in January,  you may be taxed on that  dividend
or  distribution  as if  you  received  it in the  previous  year.  In  general,
dividends and distributions from the Funds are taxable as follows:

- ------------------------------------------------------------------------------
                                                            TAX RATE FOR 28%
TYPE OF DISTRIBUTION         TAX RATE FOR 15% BRACKET       BRACKET OR ABOVE
- ------------------------------------------------------------------------------
Income dividends               Ordinary Income rate       Ordinary Income rate
Short-term capital gains       Ordinary Income rate       Ordinary Income rate
Long-term capital gains                10%                        20%
- ------------------------------------------------------------------------------

A Fund has "short-term  capital gains" when it sells a security within 12 months
after buying it. A Fund has  "long-term  capital gains" when it sells a security
that it has owned for more than 12 months. When a Fund earns interest from bonds
and other debt securities and distributes  these earnings to  shareholders,  the
Fund has  "ordinary  income."  The Fund expects  that their  distributions  will
consist  primarily of ordinary income.  You generally are required to report all
Fund distributions on your federal income tax return.

Tax-deferred  retirement accounts do not generate a tax liability unless you are
taking a distribution or making a withdrawal.

The  Fund  will  mail  you   information   concerning  the  tax  status  of  the
distributions  for each calendar  year on or before  January 31 of the following
year.

This is a brief  summary of some of the tax laws that affect your  investment in
the Fund. Please see the Fund's Statement of Additional Information and your tax
adviser for further information.
<PAGE>
                FINANCIAL HIGHLIGHTS FOR DIVERSIFIED INCOME FUND,
               CORPORATE BOND FUND AND LIMITED MATURITY BOND FUND

                 FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD


The financial  highlights  table is intended to help you  understand  the Funds'
financial  performance  for their  Class A shares and Class B shares  during the
past five years, or the period since commencement of a Fund. Certain information
reflects  financial  results for a single Fund share.  The total  returns in the
table  represent  the rate that an  investor  would have  earned (or lost) on an
investment in the Fund assuming reinvestment of all dividends and distributions.
This information has been audited by Ernst & Young LLP, whose report, along with
the Funds'  financial  statements,  are included in the annual report,  which is
available upon request.

<TABLE>
- ------------------------------------------------------------------------------------------------------------------------------------
CORPORATE BOND FUND (CLASS A)
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                   FISCAL YEAR ENDED DECEMBER 31
                                                                  ----------------------------------------------------------------
                                                                  1999(B)(C)     1998(C)     1997(C)     1996(C)(E)     1995(C)(E)
                                                                  ----------     -------     -------     ----------     ----------
<S>                                                                <C>           <C>         <C>           <C>            <C>
PER SHARE DATA
Net asset value beginning of period............................    $ 7.14        $ 7.05      $ 6.87        $ 7.39         $ 6.68

INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)...................................      0.41          0.43        0.45          0.47           0.47
Net gain (loss) on securities (realized & unrealized)..........     (0.67)         0.09        0.19         (0.52)          0.71
                                                                    -----         -----       -----         -----          -----
Total from investment operations...............................     (0.26)         0.52        0.64         (0.05)          1.18

LESS DISTRIBUTIONS
Dividends (from net investment income).........................     (0.41)        (0.43)      (0.46)        (0.47)         (0.47)
Distributions (from realized gains)............................       ---           ---         ---           ---            ---
                                                                    -----         -----       -----         -----          -----
Total distributions............................................     (0.41)        (0.43)      (0.46)        (0.47)         (0.47)
                                                                    -----         -----       -----         -----          -----
Net asset value end of period..................................    $ 6.47        $ 7.14      $ 7.05        $ 6.87         $ 7.39
                                                                    =====         =====       =====         =====          =====
Total return (a)...............................................     (3.7)%          7.6%        9.7%        (0.5)%          18.2%

RATIOS/SUPPLEMENTAL DATA
Net assets end of period (thousands)...........................    $49,477       $53,055     $56,487       $73,360        $93,701
Ratio of expenses to average net assets........................      1.09%         1.06%       1.07%         1.01%          1.02%
Ratio of net investment income (loss) to average net assets....      6.03%         6.01%       6.50%         6.54%          6.62%
Portfolio turnover rate........................................        36%           64%        120%          292%           200%
</TABLE>

<TABLE>
- ------------------------------------------------------------------------------------------------------------------------------------
CORPORATE BOND FUND (CLASS B)
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                   FISCAL YEAR ENDED DECEMBER 31
                                                                  ----------------------------------------------------------------
                                                                  1999(B)(C)  1998(B)(C)  1997(B)(C)  1996(B)(C)(E)  1995(B)(C)(E)
                                                                  ----------  ----------  ----------  -------------  -------------
<S>                                                                <C>          <C>         <C>          <C>            <C>
PER SHARE DATA
Net asset value beginning of period............................    $ 7.19       $ 7.09      $ 6.90       $ 7.43         $ 6.71

INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)...................................      0.41         0.37        0.40         0.40           0.40
Net gain (loss) on securities (realized & unrealized)..........     (0.68)        0.10        0.19        (0.52)          0.73
                                                                    -----        -----       -----        -----          -----
Total from investment operations...............................     (0.32)        0.47        0.59        (0.12)          1.13

LESS DISTRIBUTIONS
Dividends (from net investment income).........................     (0.36)       (0.37)      (0.40)       (0.41)         (0.41)
Distributions (from realized gains)............................       ---          ---         ---          ---            ---
                                                                    -----        -----       -----        -----          -----
Total distributions............................................     (0.36)       (0.37)      (0.40)       (0.41)         (0.41)
                                                                    -----        -----       -----        -----          -----
Net asset value end of period..................................    $ 6.51       $ 7.19      $ 7.09       $ 6.90         $ 7.43
                                                                    =====        =====       =====        =====          =====
Total return (a)...............................................     (4.5)%         6.9%        8.7%       (1.4)%          17.3%

RATIOS/SUPPLEMENTAL DATA
Net assets end of period (thousands)...........................     $9,138       $7,982      $6,493       $7,303         $5,743
Ratio of expenses to average net assets........................      1.85%        1.85%       1.85%        1.85%          1.85%
Ratio of net investment income (loss) to average net assets....      5.30%        5.18%       5.72%        5.70%          5.80%
Portfolio turnover rate........................................        36%          64%        120%         292%           200%
</TABLE>

<TABLE>
- ------------------------------------------------------------------------------------------------------------------------------------
LIMITED MATURITY BOND FUND (CLASS A)
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                  FISCAL PERIOD ENDED DECEMBER 31
                                                            ------------------------------------------------------------------------
                                                            1999(B)(C) 1998(B)(C)(E)  1997(B)(C)(E)  1996(B)(C)(E)  1995(B)(C)(D)(E)
                                                            ---------- -------------  -------------  -------------  ----------------
<S>                                                          <C>          <C>            <C>            <C>            <C>
PER SHARE DATA
Net asset value beginning of period........................  $10.40       $10.30         $10.14         $10.66         $10.00

INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)...............................    0.64         0.65           0.72           0.72           0.62
Net gain (loss) on securities (realized & unrealized)......   (0.82)        0.10           0.16          (0.51)          0.65
                                                              -----        -----          -----          -----          -----
Total from investment operations...........................   (0.18)        0.75           0.88           0.21           1.27

LESS DISTRIBUTIONS
Dividends (from net investment income).....................   (0.65)       (0.65)         (0.72)         (0.72)         (0.61)
Distributions (from realized gains)........................     ---          ---            ---            ---            ---
Return of capital..........................................     ---          ---            ---          (0.01)           ---
                                                              -----        -----          -----          -----          -----
Total distributions........................................   (0.65)       (0.65)         (0.72)         (0.73)         (0.61)
                                                              -----        -----          -----          -----          -----
Net asset value end of period..............................  $ 9.57       $10.40         $10.30         $10.14         $10.66
                                                              =====        =====          =====          =====          =====
Total return (a)...........................................   (1.8)%         7.5%           9.0%           2.1%          13.0%

RATIOS/SUPPLEMENTAL DATA
Net assets end of period (thousands).......................   $5,570       $6,365         $5,490         $4,938         $3,322
Ratio of expenses to average net assets....................    0.77%        0.87%          0.55%          0.90%          0.84%
Ratio of net investment income (loss) to average net assets    6.34%        6.30%          7.10%          6.97%          5.97%
Portfolio turnover rate....................................      31%          58%            76%           105%             4%
</TABLE>

<TABLE>
- ------------------------------------------------------------------------------------------------------------------------------------
LIMITED MATURITY BOND FUND (CLASS B)
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                  FISCAL PERIOD ENDED DECEMBER 31
                                                           -------------------------------------------------------------------------
                                                           1999(B)(C)  1998(B)(C)(E)  1997(B)(C)(E)  1996(B)(C)(E)  1995(B)(C)(D)(E)
                                                           ----------  -------------  -------------  -------------  ----------------
<S>                                                         <C>           <C>            <C>            <C>             <C>
PER SHARE DATA
Net asset value beginning of period........................ $10.37        $10.27         $10.14         $10.67          $10.00

INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)...............................   0.53          0.53           0.61           0.63            0.53
Net gain (loss) on securities (realized & unrealized)......  (0.82)         0.11           0.14          (0.52)           0.66
                                                             -----         -----          -----          -----           -----
Total from investment operations...........................  (0.29)         0.64           0.75           0.11            1.19

LESS DISTRIBUTIONS
Dividends (from net investment income).....................  (0.54)        (0.54)         (0.62)         (0.63)          (0.52)
Distributions (from realized gains)........................    ---           ---            ---            ---             ---
Return of capital..........................................    ---           ---            ---          (0.01)            ---
                                                             -----         -----          -----          -----           -----
Total distributions........................................  (0.54)        (0.54)         (0.62)         (0.64)          (0.52)
                                                             -----         -----          -----          -----           -----
Net asset value end of period.............................. $ 9.54        $10.37         $10.27         $10.14          $10.67
                                                             =====         =====          =====          =====           =====
Total return (a)...........................................  (2.9)%          6.4%           7.7%           1.1%           12.2%

RATIOS/SUPPLEMENTAL DATA
Net assets end of period (thousands).......................  $1,325        $1,354         $1,054           $761            $752
Ratio of expenses to average net assets....................   1.85%         1.89%          1.50%          1.88%           1.71%
Ratio of net investment income (loss) to average net assets   5.27%         5.18%          6.15%          5.99%           5.12%
Portfolio turnover rate....................................     31%           58%            76%           105%              4%
</TABLE>

<TABLE>
- ------------------------------------------------------------------------------------------------------------------------------------
DIVERSIFIED INCOME FUND (CLASS A)
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                   FISCAL YEAR ENDED DECEMBER 31
                                                                --------------------------------------------------------------------
                                                                1999(B)(C)   1998(B)(C)   1997(B)(C)   1996(B)(C)(E)   1995(B)(C)(E)
                                                                ----------   ----------   ----------   -------------   -------------
<S>                                                              <C>           <C>          <C>           <C>             <C>
PER SHARE DATA
Net asset value beginning of period............................  $ 4.96        $ 4.81       $ 4.71        $ 4.97          $ 4.35

INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)...................................    0.26          0.27         0.32          0.31            0.30
Net gain (loss) on securities (realized & unrealized)..........   (0.44)         0.16         0.10         (0.26)           0.62
                                                                  -----         -----        -----         -----           -----
Total from investment operations...............................   (0.18)         0.43         0.42          0.05            0.92

LESS DISTRIBUTIONS
Dividends (from net investment income).........................   (0.26)        (0.28)       (0.32)        (0.31)          (0.30)
Distributions (from realized gains)............................     ---           ---          ---           ---             ---
                                                                  -----         -----        -----         -----           -----
Total distributions............................................   (0.26)        (0.28)       (0.32)        (0.31)          (0.30)
                                                                  -----         -----        -----         -----           -----
Net asset value end of period..................................  $ 4.52        $ 4.96       $ 4.81        $ 4.71          $ 4.97
                                                                  =====         =====        =====         =====           =====
Total return (a)...............................................   (3.6)%          9.1%         9.2%          1.3%           21.9%

RATIOS/SUPPLEMENTAL DATA
Net assets end of period (thousands)...........................  $12,723       $12,644       $7,652        $8,036         $10,080
Ratio of expenses to average net assets........................    0.87%         0.93%        0.60%         0.65%           1.11%
Ratio of net investment income (loss) to average net assets....    5.58%         5.62%        6.10%         6.44%           6.41%
Portfolio turnover rate........................................      65%           78%          39%           75%             81%
</TABLE>

<TABLE>
- ------------------------------------------------------------------------------------------------------------------------------------
DIVERSIFIED INCOME FUND (CLASS B)
- ------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                   FISCAL YEAR ENDED DECEMBER 31
                                                                  ----------------------------------------------------------------
                                                                  1999(B)(C)  1998(B)(C)  1997(B)(C)  1996(B)(C)(E)  1995(B)(C)(E)
                                                                  ----------  ----------  ----------  -------------  -------------
<S>                                                                <C>          <C>         <C>          <C>            <C>
PER SHARE DATA
Net asset value beginning of period............................    $ 4.95       $ 4.80      $ 4.71       $ 4.97         $ 4.35

INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)...................................      0.22         0.22        0.26         0.25           0.26
Net gain (loss) on securities (realized & unrealized)..........     (0.44)        0.16        0.10        (0.25)          0.63
                                                                    -----        -----       -----        -----          -----
Total from investment operations...............................     (0.22)        0.38        0.36        (0.00)          0.89

LESS DISTRIBUTIONS
Dividends (from net investment income).........................     (0.22)       (0.23)      (0.27)       (0.26)         (0.27)
Distributions (from realized gains)............................       ---          ---         ---          ---            ---
                                                                    -----        -----       -----        -----          -----
Total distributions............................................     (0.22)       (0.23)      (0.27)       (0.26)         (0.27)
                                                                    -----        -----       -----        -----          -----
Net asset value end of period..................................    $ 4.51       $ 4.95      $ 4.80       $ 4.71         $ 4.97
                                                                    =====        =====       =====        =====          =====
Total return (a)...............................................     (4.6)%         8.0%        7.9%      (0.02)%          20.9%

RATIOS/SUPPLEMENTAL DATA
Net assets end of period (thousands)...........................     $2,356       $3,668      $1,091         $661           $582
Ratio of expenses to average net assets........................      1.85%        1.85%       1.68%        1.86%          1.87%
Ratio of net investment income (loss) to average net assets....      4.55%        4.66%       5.02%        5.23%          5.69%
Portfolio turnover rate........................................        65%          78%         39%          75%            81%
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(a)  Total  return  information  does not reflect  deduction of any sales charge
     imposed at the time of purchase for Class A shares or upon  redemption  for
     Class B shares.

(b)  Fund expenses were reduced by the Investment Manager during the period, and
     expense ratios absent such reimbursement would have been as follows:

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------
                                1995                  1996                  1997                  1998                  1999
                         ------------------    ------------------    ------------------    ------------------    ------------------
                         Class A    Class B    Class A    Class B    Class A    Class B    Class A    Class B    Class A    Class B
<S>                       <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Corporate Bond             N/A       2.19%       N/A       2.05%       N/A       2.10%       N/A       2.32%      1.10%      2.15%
Diversified Income        1.22%      3.70%      1.17%      3.26%      1.06%      2.14%      1.43%      3.03%      1.37%      2.36%
Limited Maturity Bond     1.04%      2.12%      1.40%      2.60%      1.04%      1.99%      1.38%      2.70%      1.27%      2.41%
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(c)  Net  investment  income was  computed  using the average  month-end  shares
     outstanding throughout the period.

(d)  Limited  Maturity Bond Fund was initially  capitalized on January 17, 1995,
     with a net asset value of $10 per share.  Percentage amounts for the period
     have been annualized, except total return.

(e)  Expense  ratios  including  reimbursements,  were  calculated  without  the
     reduction for custodian fees earnings credits  beginning  February 1, 1995.
     Expense ratios with such reductions would have been as follows:

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------
                                  1995                    1996                    1997                    1998
                          -------------------     -------------------     -------------------     -------------------
                          Class A     CLASS B     CLASS A     CLASS B     CLASS A     CLASS B     CLASS A     CLASS B
<S>                        <C>         <C>         <C>         <C>         <C>         <C>         <C>         <C>
Corporate Bond             1.02%       1.85%       1.01%       1.85%        ---         ---         ---         ---
Diversified Income         1.10%       1.85%       0.64%       1.85%        ---         ---         ---         ---
Limited Maturity Bond      0.81%       1.65%       0.87%       1.85%       0.51%       1.46%       0.83%       1.85%
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>
                                   APPENDIX C


The  following is a list of the current  funds in the  Security  Group of Mutual
Funds and the classes of shares that are currently offered by each fund:

FUND                                                             CLASSES OFFERED

Security Equity Fund........................................     A, B and C
Security Global Fund........................................     A, B and C
Security Total Return Fund..................................     A, B and C
Security Mid Cap Value Fund.................................     A, B and C
Security Small Cap Growth Fund..............................     A, B and C
Security Enhanced Index Fund................................     A, B and C
Security International Fund.................................     A, B and C
Security Select 25 Fund.....................................     A, B and C
Security Ultra Fund.........................................     A, B and C
Security Growth and Income Fund.............................     A, B and C
Security Municipal Bond Fund................................     A and B
Security High Yield Fund....................................     A and B
Security Cash Fund..........................................     A
Security Capital Preservation Fund..........................     A, B and C
<PAGE>
                                   APPENDIX D


As of February 28, 2000, the following  persons owned  beneficially or of record
5% or more of the outstanding shares of the Diversified Income Fund:

       ---------------------------------------------------------------
                               % OF DIVERSIFIED      % OF DIVERSIFIED
       NAME AND               INCOME FUND BEFORE     INCOME FUND AFTER
       ADDRESS      CLASS       REORGANIZATION         REORGANIZATION
       ---------------------------------------------------------------




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


As of February 28, 2000, the following persons owned of record 5% or more of the
outstanding shares of the Corporate Bond Fund:

        -------------------------------------------------------------
                                % OF CORPORATE      % OF DIVERSIFIED
        NAME AND               BOND FUND BEFORE     INCOME FUND AFTER
        ADDRESS      CLASS      REORGANIZATION        REORGANIZATION
        -------------------------------------------------------------




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


As of February 28, 2000, the following  persons owned  beneficially or of record
5% or more of the outstanding shares of the Limited Maturity Bond Fund:

      ------------------------------------------------------------------
                                 % OF LIMITED          % OF DIVERSIFIED
      NAME AND                MATURITY BOND FUND       INCOME FUND AFTER
      ADDRESS      CLASS     BEFORE REORGANIZATION      REORGANIZATION
      ------------------------------------------------------------------




      ------------------------------------------------------------------
<PAGE>
                   SECURITY INCOME FUND, CORPORATE BOND SERIES

          PROXY FOR A SPECIAL MEETING OF SHAREHOLDERS ON APRIL 26, 2000
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS


The undersigned  hereby  appoint(s)  James R. Schmank,  Donald Chubb and John D.
Cleland or any one or more of them, proxies, with full power of substitution, to
vote all shares of the Security Income Fund,  Corporate Bond Series (the "Fund")
which the undersigned is entitled to vote at the Special Meeting of Shareholders
of the Fund to be held at the  offices  of the Fund at 700 SW  Harrison  Street,
Topeka,  Kansas 66636,  on April 26, 2000 at 9:30 a.m.,  local time,  and at any
adjournment thereof.

This proxy will be voted as instructed.  If no  specification is made, the proxy
will be voted "FOR" the proposals.

Please  vote,  date and sign this proxy and return it promptly  in the  enclosed
envelope.

Please indicate your vote by an "x" in the appropriate box below.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE FOLLOWING PROPOSAL:

1.  To approve a Plan of Reorganization  providing for the acquisition of all of
    the assets and  liabilities  of the Corporate  Bond Fund by the  Diversified
    Income  Fund of Security  Income  Fund solely in exchange  for shares of the
    Diversified  Income  Fund,  followed  by  the  complete  liquidation  of the
    Corporate Bond Fund.

      For [_]                Against [_]                  Abstain [_]

This  proxy must be signed  exactly as your  name(s)  appears  hereon.  If as an
attorney, executor, guardian or in some representative capacity or as an officer
of a corporation, please add titles as such. Joint owners must each sign.



- ---------------------------           ----------------------------
Signature                             Date

- ---------------------------           ----------------------------
Signature (if held jointly)           Date
<PAGE>
               SECURITY INCOME FUND, LIMITED MATURITY BOND SERIES

          PROXY FOR A SPECIAL MEETING OF SHAREHOLDERS ON APRIL 26, 2000
           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS


The undersigned  hereby  appoint(s)  James R. Schmank,  Donald Chubb and John D.
Cleland or any one or more of them, proxies, with full power of substitution, to
vote all shares of the Security Income Fund,  Limited  Maturity Bond Series (the
"Fund")  which the  undersigned  is entitled  to vote at the Special  Meeting of
Shareholders  of the  Fund  to be  held  at the  offices  of the  Fund at 700 SW
Harrison  Street,  Topeka,  Kansas 66636, on April 26, 2000 at 9:30 a.m.,  local
time, and at any adjournment thereof.

This proxy will be voted as instructed.  If no  specification is made, the proxy
will be voted "FOR" the proposals.

Please  vote,  date and sign this proxy and return it promptly  in the  enclosed
envelope.

Please indicate your vote by an "x" in the appropriate box below.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE FOLLOWING PROPOSAL:

1.  To approve a Plan of Reorganization  providing for the acquisition of all of
    the  assets  and  liabilities  of the  Limited  Maturity  Bond  Fund  by the
    Diversified  Income  Fund of Security  Income  Fund  solely in exchange  for
    shares of the Diversified Income Fund, followed by the complete  liquidation
    of the Limited Maturity Bond Fund.

      For [_]                Against [_]                  Abstain [_]

This  proxy must be signed  exactly as your  name(s)  appears  hereon.  If as an
attorney, executor, guardian or in some representative capacity or as an officer
of a corporation, please add titles as such. Joint owners must each sign.



- ---------------------------           ----------------------------
Signature                             Date

- ---------------------------           ----------------------------
Signature (if held jointly)           Date
<PAGE>
                                     PART B


                              SECURITY INCOME FUND

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

                       Statement of Additional Information
                                  April 3, 2000

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

Acquisition of the Assets and Liabilities      By and in Exchange for Shares of
of Corporate Bond Series ("Corporate Bond      Diversified Income Series
Fund"), and Limited Maturity Bond Series       (formerly U.S. Government Series)
("Limited Maturity Bond Fund"), of             ("Diversified Income Fund") of
Security Income Fund                           Security Income Fund
700 SW Harrison Street                         700 SW Harrison Street
Topeka, Kansas 66636                           Topeka, Kansas 66636


This  Statement of Additional  Information is available to the  Shareholders  of
Corporate Bond Fund and Limited Maturity Bond Fund in connection with a proposed
transaction whereby all of the assets and liabilities of Corporate Bond Fund and
Limited  Maturity Bond Fund will be transferred  to  Diversified  Income Fund in
exchange for shares of Diversified Income Fund.

This Statement of Additional Information of the Diversified Income Fund consists
of this  cover  page  and the  following  documents,  each of  which  was  filed
electronically  with the Securities and Exchange  Commission and is incorporated
by reference herein:

1.  The  Statement  of  Additional  Information  for  Diversified  Income  Fund,
    Corporate Bond Fund and Limited  Maturity Bond Fund dated April 30, 1999, as
    supplemented November 1, 1999 and February 7, 2000.

2.  The Financial Statements of Diversified Income Fund, Corporate Bond Fund and
    Limited Maturity Bond Fund are included in the Funds' Annual Report filed on
    Form N-30D for the year ended  December 31, 1999,  Registration  No. 2-38414
    (filed February 28, 2000).

This Statement of Additional Information is not a prospectus. A Prospectus/Proxy
Statement dated April 3, 2000 relating to the reorganization of the of Corporate
Bond Fund and Limited  Maturity Bond Fund may be obtained,  without  charge,  by
writing to Security Management at 700 SW Harrison Street,  Topeka,  Kansas 66636
or calling (800) 888-2461.  This Statement of Additional  Information  should be
read in conjunction with the Prospectus/Proxy Statement.
<PAGE>
   The following  tables set forth the unaudited pro forma  statements of assets
and liabilities and unaudited pro forma statements of operations of the Funds as
of and for the year ended  December  31,  1999 and as adjusted to give effect to
the reorganization.

<TABLE>
                                           PRO FORMA STATEMENTS OF ASSETS AND LIABILITIES
                                                          DECEMBER 31, 1999
                                                             (UNAUDITED)

<CAPTION>
                                                                                         LIMITED                        COMBINED
                                                         CORPORATE       DIVERSIFIED     MATURITY      PRO FORMA       DIVERSIFIED
                                                        BOND SERIES     INCOME SERIES   BOND SERIES   ADJUSTMENTS     INCOME SERIES
                                                        ----------------------------------------------------------------------------
<S>                                                     <C>              <C>            <C>            <C>             <C>
ASSETS
Investments, at value (identified cost $61,341,582,
  $15,268,046, $7,189,528, $0 and $83,799,156
  respectively)......................................   $ 57,858,846     $14,573,950    $6,794,583           ---       $ 79,227,379
Cash.................................................            ---         298,257           ---           ---            298,257
Receivables:
  Fund shares sold...................................          1,304              93         1,097           ---              2,494
  Interest ..........................................        945,396         214,446       133,564           ---          1,293,406
  Security Management Company........................          3,605             138           ---           ---              3,743
Prepaid expenses.....................................         10,072           9,144         4,159           ---             23,375
                                                         -----------      ----------     ---------     ---------        -----------
    Total assets.....................................   $ 58,819,223     $15,096,028    $6,933,403          $  0       $ 80,848,654
                                                         -----------      ----------     ---------     ---------        -----------
LIABILITIES
  Payable for:
    Fund shares redeemed.............................   $     27,530     $     1,284    $      ---          $---       $     28,814
    Cash Overdraft...................................         14,256             ---        13,035           ---                ---
    Management fees..................................         25,309             ---           ---           ---             25,309
    Custodian fees...................................            645             504           435           ---              1,584
    Transfer and administration fees.................         12,971           6,649         1,113           ---             20,733
    Professional fees................................          4,000           4,000         4,000           ---             12,000
    12B-1distribution plan fees......................        105,534           3,504        18,668           ---            127,706
    Security Management Company......................            ---             ---           217           ---                217
    Miscellaneous fees...............................         14,547           1,901           623           ---             17,071
                                                         -----------      ----------     ---------     ---------        -----------
      Total liabilities..............................        204,792          17,842        38,091             0            260,725
                                                         -----------      ----------     ---------     ---------        -----------
NET ASSETS                                              $ 58,614,431     $15,078,186    $6,895,312          $  0       $ 80,587,929
                                                         ===========      ==========     =========     =========        ===========
NET ASSETS CONSIST OF:
Paid in capital......................................   $ 74,595,336     $17,126,033    $7,318,712          $  0       $ 99,040,081
Undistributed net investment income (loss)...........         (6,864)         11,083             0             0             17,947
Accumulated undistributed net realized gain (loss)
  on sale of investments.............................     12,505,033      (1,364,835)      (28,455)            0         13,898,323
Net unrealized appreciation (depreciation) in value
  of investments.....................................     (3,482,736)       (694,095)     (394,945)            0         (4,571,776)
                                                         -----------      ----------     ---------     ---------        -----------
    Total net assets.................................   $ 58,614,431     $15,078,186    $6,895,312          $  0       $ 80,587,929
                                                         ===========      ==========     =========     =========        ===========

Class "A" Shares
Capital shares outstanding...........................      7,645,684       2,812,887       581,851     3,950,975(A)      14,991,397
Net assets ..........................................   $ 49,476,637     $12,722,594    $5,570,226            $0       $ 67,769,459
                                                         -----------      ----------     ---------     ---------        -----------
Net asset value per share............................          $6.47           $4.52         $9.57         $0.00              $4.52
                                                         ===========      ==========     =========     =========        ===========

Offering price per share (net asset value divided by
  95.25%)............................................          $6.79           $4.75        $10.05         $0.00              $4.75

Class "B" Shares
Capital shares outstanding...........................      1,404,036         522,448       138,869       777,024(A)       2,842,377
Net assets  .........................................   $  9,137,794     $ 2,355,592    $1,325,086            $0       $ 12,818,472
                                                         -----------      ----------     ---------     ---------        -----------
Net asset value per share............................          $6.51           $4.51         $9.54         $0.00              $4.51
                                                         ===========      ==========     =========     =========        ===========

<FN>
(A)  Reflects new shares issued, net of retired shares of Corporate Bond and Limited Maturity Series.
</FN>
</TABLE>
<PAGE>
<TABLE>
                                                      STATEMENTS OF OPERATIONS
                                                FOR THE YEAR ENDED DECEMBER 31, 1999
                                                             (UNAUDITED)


<CAPTION>
                                                                                          LIMITED                        COMBINED
                                                           CORPORATE     DIVERSIFIED      MATURITY      PRO FORMA       DIVERSIFIED
                                                          BOND SERIES   INCOME SERIES   BOND SERIES   ADJUSTMENTS(A)   INCOME SERIES
                                                          --------------------------------------------------------------------------
<S>                                                       <C>            <C>             <C>            <C>             <C>
INVESTMENT INCOME:
  Dividends............................................   $         0    $         0     $   8,287      $       0       $     8,287
  Interest.............................................     4,128,740      1,229,894       506,278              0         5,864,912
                                                           ----------     ----------      --------       --------        ----------
    Total investment income............................     4,128,740      1,229,894       514,565              0         5,873,199

EXPENSES:
  Management fees......................................       289,863         95,618        36,156       (126,491)          295,146
  Custodian fees.......................................         4,530          2,369         2,341            ---             9,240
  Transfer/maintenance fees............................       119,987         74,590         6,799            ---           201,376
  Administration fees..................................        52,175         17,211         6,508            ---            75,894
  Directors' fees......................................         5,434          1,804           668            ---             7,906
  Professional fees....................................         9,959          7,595         6,643        (17,447)            6,750
  Reports to shareholders..............................         6,699          3,072         1,135            ---            10,906
  Registration fees....................................        25,866         22,062        18,599        (41,527)           25,000
  Other expenses.......................................         3,069            645           329            ---             4,043
  12b-1 distribution plan fees.........................       206,771         83,250        28,376            ---           318,397
                                                           ----------     ----------      --------       --------        ----------
                                                              724,353        308,216       107,554       (185,465)          954,658
Less: Reimbursement of expenses........................       (30,967)       (96,445)      (37,027)       164,439               ---
                                                           ----------     ----------      --------       --------        ----------
      Total expenses...................................       693,386        211,771        70,527        (21,026)          954,658
                                                           ----------     ----------      --------       --------        ----------
      Net investment income............................     3,435,354      1,018,123       444,038         21,026         4,918,541

NET REALIZED AND UNREALIZED GAIN (LOSS):
Net realized gain (loss) during the period on
  investments..........................................      (415,756)      (585,644)      (19,107)             0        (1,020,507)
Net change in unrealized appreciation (depreciation)
  during the period on investments.....................    (5,315,075)    (1,172,192)     (561,159)             0        (7,048,426)
                                                           ----------     ----------      --------       --------        ----------
  Net gain (loss)......................................    (5,730,831)    (1,757,836)     (580,266)             0        (8,068,933)
                                                           ----------     ----------      --------       --------        ----------
    Net increase decreasing in net assets resulting
      from operations..................................   $(2,295,477)   $  (739,713)    $(136,228)     $  21,026       $(3,150,392)
                                                           ==========     ==========      ========       ========        ==========

<FN>
(a)  Reflects  estimated  reduction in expenses due to lower  management fee, larger net assets and greater  economies of scale, and
     assumes the Diversified Income Series' fee structure was in effect for the year ended December 31, 1999.
</FN>
</TABLE>
<PAGE>
                     NOTES TO PRO FORMA FINANCIAL STATEMENTS
                                   (UNAUDITED)


NOTE 1: BASIS OF COMBINATION - On February 4, 2000, the Board of Security Income
Fund  approved an Agreement  and Plan of  Reorganization  (the "Plan")  whereby,
subject to approval by the  shareholders  of  Corporate  Bond Series and Limited
Maturity Bond Series,  Diversified  Income Series will acquire all the assets of
the  Corporate  Bond Series and  Limited  Maturity  Bond  Series  subject to the
liabilities of such Series,  in exchange for a number of shares equal to the pro
rata net assets of shares of the Diversified Income Series (the "Merger").

The Merger will be accounted for as a tax-free  merger of investment  companies.
The pro forma combined financial statements are presented for the information of
the reader and may not necessarily be representative of what the actual combined
financial statements would have been had the reorganization occurred at December
31, 1999.  The unaudited  pro forma  portfolio of  investments  and statement of
assets and  liabilities  reflect the financial  position of the  Corporate  Bond
Series,  Limited  Maturity  Bond Series,  and the  Diversified  Income Series at
December 31, 1999. The unaudited pro forma statement of operations  reflects the
results of  operations  of the  Corporate  Bond Series,  Limited  Maturity  Bond
Series,  and the Diversified Income Series for the year ended December 31, 1999.
These statements have been derived from the Funds'  respective books and records
utilized in calculating  daily net asset value at the dates  indicated above for
Corporate Bond Series,  Limited  Maturity Bond Series,  and  Diversified  Income
Series under generally accepted  accounting  principles.  The historical cost of
investment  securities  will be  carried  forward  to the  surviving  entity and
results of operations of Diversified Income Series for  pre-combination  periods
will not be restated.

The pro forma  portfolio of investments and statements of assets and liabilities
and  operations  should be read in  conjunction  with the  historical  financial
statements  of  the  Funds  incorporated  by  reference  in  the  Statements  of
Additional Information.

NOTE 2: SECURITY  VALUATION - Valuations of Diversified  Income,  Corporate Bond
and Limited  Maturity Bond Series'  securities are supplied by pricing  services
approved by the Board of  Directors.  Securities  listed or traded on a national
securities  exchange are valued on the basis of the last sales  price.  If there
are no sales on a particular day, then the securities are valued at the last bid
price.  Securities  for which market  quotations  are not readily  available are
valued by a pricing service considering securities with similar yields, quality,
type of issue,  coupon,  duration and rating. If there is no bid price or if the
bid price is deemed to be  unsatisfactory  by the Board of  Directors  or by the
Funds' investment manager,  then the securities are valued in good faith by such
method as the Board of Directors  determines  will  reflect the fair value.  The
Funds'  officers,  under the  general  supervision  of the  Board of  Directors,
regularly  review  procedures  used by, and valuations  provided by, the pricing
service.

NOTE 3:  CAPITAL  SHARES - The pro  forma net  asset  value  per  share  assumes
additional  shares  of  common  stock  issued in  connection  with the  proposed
acquisition  of  Corporate  Bond  Series and  Limited  Maturity  Bond  Series by
Diversified  Income  Series as of December  31, 1999.  The number of  additional
shares  issued was  calculated  by dividing the net asset value of each Class of
Corporate Bond Series and Limited  Maturity Bond Series by the respective  Class
net asset value per share of Diversified Income Series.

NOTE 4: PRO FORMA ADJUSTMENT - The  accompanying pro forma financial  statements
reflect  changes in fund shares as if the merger had taken place on December 31,
1999.  Corporate  Bond Series and Limited  Maturity  Bond Series  expenses  were
adjusted assuming Diversified Income Series' fee structure was in effect for the
year ended December 31, 1999.

NOTE 5:  MERGER  COSTS  AND  DISTRIBUTIONS  -  Merger  costs  are  estimated  at
approximately  $72,000  and  are not  included  in the pro  forma  statement  of
operations  since  these  costs are  nonrecurring.  These  costs  represent  the
estimated  expense of all Series carrying out their  obligations  under the Plan
and consist of management's  estimate of legal fees,  accounting fees,  printing
costs and mailing charges related to the proposed merger.

It is the policy of the Funds,  to comply with the  requirements of the Internal
Revenue  Code that are  applicable  to  regulated  investment  companies  and to
distribute substantially all of their net investment income and any net realized
gains to their  shareholders.  Therefore,  a federal  income  tax or excise  tax
provision is not required.  In addition,  by  distributing  during each calendar
year  substantially  all of its net investment  income and net realized  capital
gains, each Fund intends not to be subject to any federal excise tax.

The  Board of  Directors  intends  to  offset  any net  capital  gains  with any
available  capital  loss  carryforward  until each  carryforward  has been fully
utilized or expires.  In addition,  no capital gain  distribution  shall be made
until the capital loss carryforward has been fully utilized or expires.

Corporate Bond Series,  Limited Maturity Bond Series, and the Diversified Income
Series  will  distribute  substantially  all  their  investment  income  and any
realized gains prior to the merger date.
<PAGE>
<TABLE>
                                                  PROFORMA SCHEDULE OF INVESTMENTS
                                                       AS OF DECEMBER 31, 1999
                                                             (UNAUDITED)


<CAPTION>
     PRINCIPAL AMOUNT OR NUMBER OF SHARES                                                           MARKET VALUE
- -----------------------------------------------                                -----------------------------------------------------
                                      COMBINED                                                                            COMBINED
CORPORATE   DIVERSIFIED   LIMITED    DIVERSIFIED                               CORPORATE    DIVERSIFIED      LIMITED     DIVERSIFIED
  BOND        INCOME      MATURITY     INCOME                                    BOND         INCOME         MATURITY      INCOME
 SERIES       SERIES      SERIES       SERIES                                    SERIES       SERIES          SERIES       SERIES
- ------------------------------------------------------------------------------------------------------------------------------------
<C>         <C>          <C>         <C>          <S>                          <C>          <C>          <C>             <C>
                                                  CORPORATE BONDS AND
                                                  MORTGAGE BACKED

                                                  AIRLINES - 2.8%
1,075,000                             1,075,000   Southwest Airlines
                                                    Company, 7.875% - 2007..    1,088,437                                 1,088,437
  950,000                               950,000   United Air Lines,
                                                    11.21% - 2014...........    1,126,938                                 1,126,938
                                                                               -----------------------------------------------------
                                                                                2,215,375            0               0    2,215,375

                                                  AUTOMOTIVE - 2.0%
  250,000                   25,000      275,000   Federal-Mogul Corporation,
                                                    7.875% - 2010...........      228,437                       22,844      251,281
1,000,000                  100,000    1,100,000   General Motors
                                                    Corporation,
                                                    7.70% - 2016............      998,750                       99,875    1,098,625
  250,000                   25,000      275,000   Mark IV Industries,
                                                    7.75% - 2006............      240,000                       22,688      262,688
                                                                               -----------------------------------------------------
                                                                                1,467,187            0         145,407    1,612,594

                                                  BANKING - 1.5%
                            13,000       13,000   B.F. Saul REIT,
                                                    9.75% - 2008............       12,269       12,269
                           100,000      100,000   Bank of New York, Inc.,
                                                    6.50% - 2003............       97,500       97,500
                           110,000      110,000   First Union Corporation,
                                                    8.125% - 2002...........      112,063      112,063
                            25,000       25,000   Golden State Holdings,
                                                    7.125% - 2005...........       22,656       22,656
1,000,000                             1,000,000   Washington Mutual
                                                    Capital I, 8.375% - 2027      936,250                                   936,250
                                                                               -----------------------------------------------------
                                                                                  936,250            0         244,488    1,180,738

                                                  BASIC INDUSTRY-OTHER-1.0%
  800,000                  125,000      925,000   Pioneer Hi Bred
                                                    International, Inc.,
                                                    5.75% - 2009............      713,000                      111,406      824,406

                                                  BEVERAG - 1.6%
1,150,000                  100,000    1,250,000   Anheuser-Busch Companies,
                                                    Inc.,7.10% - 2007.......    1,115,500                       97,000    1,212,500
                           100,000      100,000   Pepsi Bottling Holdings,
                                                    Inc., 5.25% - 2009......       88,250       88,250
                                                                               -----------------------------------------------------
                                                                                1,115,500            0         185,250    1,300,750

                                                  BROKERAGE - 1.7%
   48,910                    4,560       53,470   SI Financing, Inc.,
                                                    9.50% - 2026............    1,247,205                      116,280    1,363,485

                                                  BUILDING MATERIALS - 2.5%
  600,000                   50,000      650,000   LaFarge Corporation,
                                                    6.375% - 2005...........      562,500                       46,875      609,375
  850,000                               850,000   Martin Marietta Material,
                                                    5.875% - 2008...........      758,625                                   758,625
                            25,000       25,000   Nortek, Inc., 8.875%- 2008                                    23,750       23,750
  500,000                  100,000      600,000   Vulcan Materials Company,
                                                    5.75% - 2004............      476,250                       95,250      571,500
                                                                               -----------------------------------------------------
                                                                                1,797,375            0         165,875    1,963,250

                                                  CONSTRUCTION
                                                    MACHINERY - 0.8%
  250,000                   25,000      275,000   AGCO Corporation,
                                                    8.50% - 2006............      232,812                       23,281      256,093
                            25,000       25,000   Columbus McKinnon
                                                    Corporation, 8.5% - 2006       21,563       21,563
  150,000                   25,000      175,000   SEQUA Corporation,
                                                    9.00% - 2009............      145,688                       24,281      169,969
  250,000                               250,000   Titan Wheel International,
                                                    8.75% - 2007............      210,313                                   210,313
                                                                               -----------------------------------------------------
                                                                                  588,813            0          69,125      657,938

                                                  CONSUMER CYCLICAL -
                                                    OTHER - 0.0%
                            25,000       25,000   American ECO Corporation,
                                                    9.625% - 2008...........       12,938       12,938

                                                  ENERGY - OTHER - 0.0%
                            25,000       25,000   P & L Coal Holdings
                                                    Corporation,
                                                    8.875% - 2008...........       24,438       24,438

                                                  ENERGY - REFINING - 0.2%
                           150,000      150,000   Vastar Resources, Inc.,
                                                    8.75% - 2005............      156,750      156,750

                                                  ENTERTAINMENT - 1.1%
1,000,000                             1,000,000   Paramount Communications,
                                                    7.50% - 2023............      882,500                                   882,500

                                                  FINANCIAL COMPANIES - 6.3%
   23,000                    3,900       26,900   American RE Capital,
                                                    8.50% - 2025............      552,000                       93,600      645,600
  875,000                  100,000      975,000   Associates Corporation,
                                                    N.A., 7.55% - 2006......      873,906                       99,875      973,781
  250,000                   25,000      275,000   CB Richard Ellis Service,
                                                    8.875% - 2006...........      225,625                       22,562      248,187
1,000,000                             1,000,000   Countrywide Capital,
                                                    8.00% - 2026............      891,250                                   891,250
                           150,000      150,000   Household Financial
                                                    Corporation, 8.0% - 2004      152,438      152,438
                           150,000      150,000   International Lease
                                                    Finance Corporation,
                                                    8.25% - 2000............      150,080      150,080
  100,000                  100,000      200,000   Merrill Lynch & Company,
                                                    Inc., 7.375% - 2006.....       99,250                       99,250      198,500
                                                  Morgan Stanley Dean Witter
1,050,000                  100,000    1,150,000     Discover & Company,
                                                    6.875% - 2007...........    1,014,563                       96,625    1,111,188
  700,000                               700,000   PNC Funding Corporation,
                                                    7.75% - 2004............      706,125                                   706,125
                                                                               -----------------------------------------------------
                                                                                4,362,719            0         714,430    5,077,149

                                                  FINANCE - OTHER - 0.1%
                           100,000      100,000   EOP Operating Limited
                                                    Partnership, REIT,
                                                    6.625% - 2005...........       94,875       94,875

                                                  FOOD - 1.8%
1,000,000                  100,000    1,100,000   Archer-Daniels-Midland
                                                    Company, 8.875% - 2011..    1,092,500                      109,250    1,201,750
                            75,000       75,000   Cargill Corporation,
                                                    6.15% - 2008............       68,250       68,250
  250,000                               250,000   Chiquita Brands
                                                    International, Inc.,
                                                    10.25% - 2006...........      180,625                                   180,625
                                                                               -----------------------------------------------------
                                                                                1,273,125            0         177,500    1,450,625

                                                  GAMING - 2.3%
  250,000                   25,000      275,000   Boyd Gaming Corporation,
                                                    9.25% - 2003............      251,875                       25,187      277,062
                            25,000       25,000   Circus Circus Enterprise,
                                                    9.25% - 2005............       25,375       25,375
                            25,000       25,000   Harrahs Operating, Inc.,
                                                    7.875% - 2005...........       24,063       24,063
  600,000                   75,000      675,000   MGM Grand Inc.,
                                                    6.95% - 2005............      552,750                       69,094      621,844
  600,000                   65,000      665,000   Mirage Resorts Inc.,
                                                    6.625% - 2005...........      550,500                       59,638      610,138
  250,000                   25,000      275,000   Park Place Entertainment,
                                                    7.875% - 2005...........      239,375                       23,937      263,312
                                                                               -----------------------------------------------------
                                                                                1,594,500          ---         227,294    1,821,794

                                                  HEALTHCARE - 0.2%
  125,000                               125,000   Rural/Metro Corporation,
                                                    7.875% - 2008...........       98,125                                    98,125
                            25,000       25,000   Tenet Healthcare,
                                                    8.125% - 2008...........       23,344       23,344
                                                                               -----------------------------------------------------
                                                                                   98,125          ---          23,344      121,469

                                                  HOME CONSTRUCTION - 0.5%
   50,000                                50,000   D.R. Horton, Inc.,
                                                    8.375% - 2004...........       48,875                                    48,875
  125,000                   12,000      137,000   MDC Holdings, 8.375%- 2008      113,906                       10,935      124,841
  250,000                               250,000   Oakwood Homes Corporation,
                                                    8.125% - 2009...........      128,750                                   128,750
   75,000                   13,000       88,000   Toll Corporation,
                                                    7.75% - 2007............       70,313                       12,187       82,500
                                                                               -----------------------------------------------------
                                                                                  361,844            0          23,122      384,966

                                                  INDEPENDENT ENERGY - 0.9%
  700,000                   50,000      750,000   Seagull Energy
                                                    Corporation,
                                                    8.625% - 2005...........      700,875                       50,062      750,937

                                                  INSURANCE - LIFE - 1.6%
  100,000                  100,000      200,000   Chubb Corporation,
                                                    6.15% - 2005............       94,500                       94,500      189,000
  950,000                  100,000    1,050,000   Hartford Life, Inc.,
                                                    7.10% - 2007............      914,375                       96,250    1,010,625
  100,000                               100,000   Transamerica Capital II,
                                                    7.65% - 2026............       91,250                                    91,250
                                                                               -----------------------------------------------------
                                                                                1,100,125            0         190,750    1,290,875

                                                  LODGING - 0.6%
  250,000                   25,000      275,000   HMH Properties,
                                                    7.875% - 2008...........      223,125                       22,312      245,437
  250,000                               250,000   Prime Hospitality
                                                    Corporation, 9.25%- 2006     249,375                                    249,375
                                                                               -----------------------------------------------------
                                                                                  472,500            0          22,312      494,812

                                                  MEDIA - CABLE - 2.0%
                            25,000       25,000   Adelphia Communications,
                                                    8.375% - 2008...........       23,250       23,250
  250,000                   25,000      275,000   Century Communications,
                                                    8.375% - 2007...........      236,875                       23,688      260,563
  100,000                               100,000   Comcast Corporation,
                                                    9.125% - 2006...........      104,125                                   104,125
  250,000                   25,000      275,000   Jones Intercable, Inc.,
                                                    7.625% - 2008...........      248,125                       24,812      272,937
  250,000                               250,000   Lenfest Communications,
                                                    Inc., 10.50% - 2006.....      280,625                                   280,625
  250,000                               250,000   Rogers Cablesystems, Ltd.,
                                                    9.625% - 2002...........      259,375                                   259,375
  250,000                   25,000      275,000   Rogers Communications,
                                                    Inc., 9.125% - 2006.....      250,625                       25,062      275,687
   60,000                   50,000      110,000   Time Warner Entertainment,
                                                    10.15% - 2012...........       70,350                       58,625      128,975
                                                                               -----------------------------------------------------
                                                                                1,450,100            0         155,437    1,605,537

                                                  MEDIA - NON-CABLE - 0.7%
                           100,000      100,000   Heritage Media
                                                    Corporation,
                                                    8.75% - 2006............      101,875      101,875
  300,000                   75,000      375,000   KIII Communications
                                                    Corporation,
                                                    10.25% - 2004...........      296,625                       74,156      370,781
   75,000                                75,000   News American Holdings,
                                                    8.625% - 2003...........       77,437                                    77,437
                            25,000       25,000   USA Networks, 6.75% - 2005                                    23,844       23,844
                                                                               -----------------------------------------------------
                                                                                  374,062            0         199,875      573,937

                                                  METALS - 0.1%
                            25,000       25,000   AK Steel Corporation,
                                                    7.875% - 2009...........       23,750       23,750
                            25,000       25,000   California Steel
                                                    Industries, 8.50% - 2009       24,188       24,188
                            25,000       25,000   WHX Corporation,
                                                    10.50% - 2005...........       24,437       24,437
                                                                               -----------------------------------------------------
                                                                                        0            0          72,375       72,375

                                                  MORTGAGE BACKED
                                                    SECURITES - 2.1%
                                                  Chase Capital Mortgage
                                                    Securities Company,
1,500,000                             1,500,000     1997-1 B, 7.37% - 2007
                                                    CMO.....................    1,473,945                                 1,473,945
                                                  Chase Capital Mortgage
                                                    Securities Company,
  225,000                               225,000     1998-1 B, 6.56% - 2008
                                                    CMO.....................      210,892                                   210,892
                            44,343       44,343   Global Rated Eligible
                                                    Asset Trust,
                                                    7.33% - 2006............        9,755        9,755
                                                                               -----------------------------------------------------
                                                                                1,684,837          ---           9,755    1,694,592

                                                  OIL FIELD SERVICES - 1.2%
1,000,000                             1,000,000   Transocean Offshore, Inc.,
                                                    8.00% - 2027............      981,250                                   981,250

                                                  PACKAGING - 0.0%
                            25,000       25,000   Ball Corporation,
                                                    7.75% - 2006............       24,437       24,437

                                                  RETAILERS - 2.7%
  850,000                  100,000      950,000   Lowe's Companies, Inc.,
                                                    6.70% - 2007............      811,750                       95,500      907,250
  300,000                               300,000   Mattel, Inc., 6.125%- 2005      274,125                                   274,125
                           150,000      150,000   Sears & Roebuck Company,
                                                    6.41% - 2001............      148,125      148,125
  450,000                  100,000      550,000   Tandy Corporation,
                                                    6.95% - 2007............      430,875                       95,750      526,625
  250,000                  100,000      350,000   Zale Corporation,
                                                    8.50% - 2007............      247,813                       99,125      346,938
                                                                               -----------------------------------------------------
                                                                                1,764,563            0         438,500    2,203,063

                                                  SERVICES - 0.7%
  550,000                   50,000      600,000   Loewen Group
                                                    International,
                                                    Inc.,  8.25% - 2003*....      288,750                       26,250      315,000
                            25,000       25,000   Protection One Alarm,
                                                    7.375% - 2005...........       19,875       19,875
  250,000                               250,000   Unisys Corporation,
                                                    7.875% - 2008...........      240,625                                   240,625
                                                                               -----------------------------------------------------
                                                                                  529,375            0          46,125      575,500

                                                  SUPERMARKETS - 0.1%
                           100,000      100,000   Safeway, Inc., 6.50%- 2008                                    92,125       92,125

                                                  TECHNOLOGY - 0.6%
  500,000                               500,000   Electronic Data Systems,
                                                    7.125% - 2009...........      488,125                                   488,125

                                                  TELECOMMUNICATIONS - 3.3%
  100,000                  100,000      200,000   AT&T Corporation,
                                                    7.00% - 2005............       98,125                       98,125      196,250
                            25,000       25,000   ALESTRA S.A.,
                                                    12.625% - 2009..........       25,094       25,094
  250,000                   50,000      300,000   Cable & Wireless
                                                    Communications,
                                                    6.75% - 2008............      247,500                       49,500      297,000
1,000,000                             1,000,000   GTE Corporation,
                                                    7.51% - 2009............      998,750                                   998,750
  250,000                   25,000      275,000   Mastec, Inc., 7.75% - 2008      243,125                       24,312      267,437
   50,000                  100,000      150,000   New Jersey Bell Telephone,
                                                    6.625% - 2008...........       46,687                       93,375      140,062
  675,000                  100,000      775,000   SBC Communications
                                                    Capital Corporation,
                                                    6.625% - 2007...........      648,000                       96,000      744,000
                                                                               -----------------------------------------------------
                                                                                2,282,187            0         386,406    2,668,593

                                                  TEXTILES - 0.0%
                            25,000       25,000   Westpoint Stevens, Inc.,
                                                    7.875% - 2008...........       22,437       22,437

                                                  TOBACCO - 0.1%
                            50,000       50,000   Dimon, Inc., 8.875% - 2006                                    44,625       44,625
                            50,000       50,000   Standard Commercial
                                                    Tobacco Corporation,
                                                    8.875% - 2005...........       40,625       40,625
                                                                               -----------------------------------------------------
                                                                                        0            0          85,250       85,250

                                                  TRANSPORTATION -
                                                    AIRLINES - 0.2%
                           100,000      100,000   Southwest Airlines
                                                    Company, 7.875% - 2007..      101,250      101,250
                            75,000       75,000   United Airlines,
                                                    11.21% - 2014...........       88,969       88,969
                                                                               -----------------------------------------------------
                                                                                        0            0         190,219      190,219

                                                  TRANSPORTATION-OTHER- 0.3%
  250,000                   25,000      275,000   Allied Holdings, Inc.,
                                                    8.625% - 2007...........      221,875                       22,187      244,062

                                                  UTILITIES-ELECTRIC - 0.9%
  500,000                               500,000   AES Corporation,
                                                    10.25% - 2006...........      505,000                                   505,000
                            25,000       25,000   CMS Energy Corporation,
                                                    6.75% - 2004............       23,187       23,187
                            25,000       25,000   Calpine Corporation,
                                                    8.75% - 2007............       25,094       25,094
                           150,000      150,000   Consolidated Edison
                                                    Company, 6.625% - 2002..      148,500      148,500
                                                                               -----------------------------------------------------
                                                                                  505,000            0         196,781      701,781

                                                  UTILITIES-NATURAL GAS-1.4%
   75,000                  150,000      225,000   MCN Investment
                                                    Corporation,
                                                    6.32% - 2003............       72,281                      144,563      216,844
1,000,000                             1,000,000   National Fuel Gas Company,
                                                    6.303% - 2008...........      901,250                                   901,250
                                                                               -----------------------------------------------------
                                                                                  973,531            0         144,563    1,118,094

                                                  YANKEE - CANADIAN - 1.4%
1,100,000                  100,000    1,200,000   Quebecor Printing Capital,
                                                    7.25% - 2007............    1,027,125                       93,375    1,120,500

                                                  YANKEE - CORPORATE - 5.6%
1,150,000                             1,150,000   Abbey National PLC,
                                                    6.69% - 2005............    1,102,563                                 1,102,563
1,000,000                  100,000    1,100,000   ABN AMRO Bank NV,
                                                    7.55% - 2006............      995,000                       99,500    1,094,500
1,000,000                             1,000,000   BCH Cayman Islands, Ltd.,
                                                    7.70% - 2006............      996,250                                   996,250
                           100,000      100,000   Den Danske Bank,
                                                    7.40% - 2010............       96,250       96,250
1,200,000                  100,000    1,300,000   Panamerican Beverages,
                                                    Inc., 8.125% - 2003.....    1,146,000                       95,500    1,241,500
                                                                               -----------------------------------------------------
                                                                                4,239,813          ---         291,250    4,531,063
                                                                               -----------------------------------------------------
                                                  TOTAL CORPORATE BONDS AND
                                                  MORTGAGE BACKED - 52.9%...   37,448,861          ---       5,226,743   42,675,604

                                                  GOVERNMENT AGENCIES AND
                                                  GOVERNMENT SECURITIES

                                                  FEDERAL HOME LOAN
                                                    BANK - 1.2%
  800,000                               800,000   6.375% - 2006.............      773,792                                   773,792
               150,000                  150,000   8.29% - 2015..............                   165,001                      165,001
                                                                               -----------------------------------------------------
                                                                                  773,792      165,001             ---      938,793

                                                  FEDERAL HOME LOAN MORTGAGE
                                                    CORPORATION - 5.2%
                            57,524       57,524   FHG #42 K, 8.00%- 2024 CMO                                    57,955       57,955
1,050,000                  100,000    1,150,000   FHR 1311 J, 7.50% - 2021
                                                    CMO.....................    1,037,085                       98,770    1,135,855
  235,958                   17,350      253,308   FHR 1930 AB, 7.50% - 2023
                                                    CMO.....................      237,270                       17,446      254,716
1,000,000      400,000                1,400,000   FHLMC, 6.25% - 2004.......      977,500      391,000                    1,368,500
             1,000,000                1,000,000   FHLMC, 6.625% - 2009......                   971,250                      971,250
                           150,000      150,000   Freddie Mac, 5.75% - 2003.                                   145,304      145,304
                           250,000      250,000   Federal Home Loan
                                                    Mortgage, 6.25% - 2004..      244,375      244,375
                                                                               -----------------------------------------------------
                                                                                2,251,855    1,362,250         563,850    4,177,955

                                                  FEDERAL NATIONAL MORTGAGE
                                                    ASSOCIATION - 9.6%
  543,254                               543,254   FNR 1990-108 G,
                                                    7.00% - 2020 CMO........      525,403                                   525,403
                           100,000      100,000   FNMA, 5.45% - 2003........                                    95,571       95,571
1,000,000    1,000,000     250,000    2,250,000   FNMA, 6.50% - 2004........      987,790      987,790         246,948    2,222,528
               600,000                  600,000   FNMA, 7.40% - 2004........                   613,272                      613,272
               285,000                  285,000   FNMA, 7.49% - 2005........                   292,649                      292,649
               250,000                  250,000   FNMA, 7.65% - 2005........                   258,452                      258,452
               500,000                  500,000   FNMA, 7.875% - 2005.......                   521,590                      521,590
               400,000                  400,000   FNMA, 6.00% - 2008........                   374,468                      374,468
1,500,000                             1,500,000   FNMA, 6.375% - 2009.......    1,431,915                                 1,431,915
1,000,000                             1,000,000   FNMA, 6.625% - 2009.......      972,500                                   972,500
               500,000                  500,000   FNMA, 6.16% - 2028........                   437,830                      437,830
                                                                               -----------------------------------------------------
                                                                                3,917,608    3,486,051         342,519    7,746,178

                                                  FINANCING CORPORATION-0.8%
               500,000                  500,000   9.65% - 2018..............                   615,000                      615,000

                                                  GOVERNMENT NATIONAL
                                                    MORTGAGE ASSOCIATION -
                                                    18.1%
  736,096                               736,096   GNMA 313107, 7.00% - 2022.      721,204                                   721,204
               213,217                  213,217   GNMA 328618, 7.00% - 2022.                   208,169                      208,169
               151,159                  151,159   GNMA II 1260, 7.00% - 2023                   147,249                      147,249
  679,459                               679,459   GNMA 352022, 7.00% - 2023.      656,099                                   656,099
  652,089                   65,209      717,298   GNMA 369303, 7.00% - 2023.      638,115                       63,811      701,926
               373,299                  373,299   GNMA 347017, 7.00% - 2024.                   363,858                      363,858
               205,649                  205,649   GNMA 371006, 7.00% - 2024.                   200,897                      200,897
               371,619                  371,619   GNMA 371012, 7.00% - 2024.                   362,488                      362,488
               158,892                  158,892   GNMA II 1849, 8.50% - 2024                   163,076                      163,076
               242,884                  242,884   GNMA 411643, 7.75% - 2025.                   242,797                      242,797
               681,941      85,243      767,184   GNMA 780454, 7.00% - 2026.                   658,925          82,366      741,291
               328,171                  328,171   GNMA 2320, 7.00% - 2026...                   318,365                      318,365
               267,345                  267,345   GNMA II 2270, 8.00% - 2026                   267,968                      267,968
               149,549                  149,549   GNMA II 9365, 8.25% - 2026                   152,410                      152,410
               380,246                  380,246   GNMA 2689, 6.50% - 2028...                   356,153                      356,153
               754,216                  754,216   GNMA 464356, 6.50% - 2028.                   708,647                      708,647
  866,352       86,635                  952,987   GNMA 462680, 7.00%- 2028..      839,218       83,922                      923,140
1,057,200                  154,175    1,211,375   GNMA 482668, 7.00% - 2028.    1,023,739                      149,295    1,173,034
               476,820                  476,820   GNMA 2616, 7.00% - 2028...                   460,465                      460,465
  997,508                               997,508   GNMA 518436, 7.25% - 2029.      974,784                                   974,784
               989,755                  989,755   GNMA 491492, 7.50% - 2029.                   978,689                      978,689
1,545,686                             1,545,686   GNMA 494109, 7.50% - 2029.    1,528,328                                 1,528,328
  997,758      299,328      99,776    1,396,862   GNMA 510704, 7.50% - 2029.      986,544      295,963          98,654    1,381,161
  257,588                   61,821      319,409   GNMA II 2445, 8.00% - 2027      258,194                       61,967      320,161
               515,070                  515,070   GNMA 365608, 7.50% - 2034.                   509,842                      509,842
   21,744                                21,744   GNR 1997-10 B, 7.50%- 2019
                                                    CMO.....................       21,696                                    21,696
                                                                               -----------------------------------------------------
                                                                                7,647,921    6,479,883         456,093   14,583,897

                                                  PRIVATE EXPORT FUNDING
                                                    CORPORATION - 0.5%
               100,000                  100,000   6.31% - 2004..............                    97,250                       97,250
               350,000                  350,000   7.01% - 2004..............                   350,000                      350,000
                                                                               -----------------------------------------------------
                                                                                      ---      447,250             ---      447,250

                                                  STUDENT LOAN MARKETING
                                                    ASSOCIATION - 0.6%
  420,000                               420,000   9.25% - 2004..............                   457,729                      457,729

                                                  TENNESSEE VALLEY
                                                    AUTHORITY - 1.1%
               500,000                  500,000   6.00% - 2013..............                   448,750                      448,750
               500,000                  500,000   6.75% - 2025..............                   470,000                      470,000
                                                                               -----------------------------------------------------
                                                                                      ---      918,750             ---      918,750

                                                  U.S. TREASURY BOND - 2.4%
1,000,000                             1,000,000   6.25% - 2023..............      942,890                                   942,890
1,000,000                             1,000,000   6.625% - 2027.............      991,180                                   991,180
                                                                               -----------------------------------------------------
                                                                                1,934,070          ---             ---    1,934,070

                                                  U.S. TREASURY NOTES - 4.1%
1,700,000                             1,700,000   5.75% - 2003..............    1,668,686                                 1,668,686
1,000,000                             1,000,000   6.50% - 2005..............    1,000,160                                 1,000,160
               600,000                  600,000   8.75% - 2008..............                   642,036                      642,036
                                                                               -----------------------------------------------------
                                                                                2,668,846      642,036             ---    3,310,882

                                                  U.S. DEPARTMENT OF
                                                    HOUSING AND URBAN
                                                    DEVELOPMENT - 1.6%
1,290,000                   50,000    1,340,000   6.93%- 2013...............    1,215,893                       47,128    1,263,021

                                                  CANADIAN GOVERNMENT
                                                    SECURITIES - 0.2%
                           150,000      150,000   Province of Quebec,
                                                    8.625% - 2005...........      158,250      158,250
                                                                               -----------------------------------------------------

                                                  TOTAL GOVERNMENT
                                                  SECURITIES - 45.4%........   20,409,985   14,573,950       1,567,840   36,551,775

                                                  TOTAL INVESTMENTS - 98.3%.   57,858,846   14,573,950       6,794,583   79,227,379
                                                  CASH AND OTHER ASSETS,
                                                    LESS LIABILITIES - 1.7%.      755,585      504,236         100,729    1,360,550
                                                                               -----------------------------------------------------
                                                  TOTAL NET ASSETS - 100.0%.   58,614,431   15,078,186       6,895,312   80,587,929
                                                                               =====================================================
</TABLE>
<PAGE>
                               PROFORMA FEE TABLE


<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------
                                                                         TOTAL
                                                                      ANNUAL FUND                     NET
                               MANAGEMENT   DISTRIBUTION    OTHER      OPERATING    REIMBURSMENT/   EXPENSE
                                  FEES      (12B-1) FEES   EXPENSES    EXPENSES        WAIVERS       RATIO
- -----------------------------------------------------------------------------------------------------------
<S>                               <C>           <C>         <C>          <C>            <C>          <C>
1999 ACTUAL CLASS A
  Corporate Bond                  0.50%         0.25%       0.35%        1.10%          0.01%        1.09%
  Limited Maturity                0.50%         0.25%       0.52%        1.27%          0.50%        0.77%
  Diversified Income              0.50%         0.25%       0.62%        1.37%          0.50%        0.87%

1999 ACTUAL CLASS B
  Corporate Bond                  0.50%         1.00%       0.65%        2.15%          0.30%        1.85%
  Limited Maturity                0.50%         1.00%       0.91%        2.41%          0.56%        1.85%
  Diversified Income              0.50%         1.00%       0.86%        2.36%          0.51%        1.85%

PROFORMA-CLASS A
  Diversified Income(1)           0.35%         0.25%       0.40%        1.00%          0.00%        1.00%
  Corporate Bond (only)(2)        0.35%         0.25%       0.42%        1.02%          ---          1.02%
  Limited Maturity (only)(3)      0.35%         0.25%       0.57%        1.17%          0.07%        1.10%

PROFORMA-CLASS B
  Diversified Income(1)           0.35%         1.00%       0.40%        1.75%          0.00%        1.75%
  Corporate Bond (only)(2)        0.35%         1.00%       0.42%        1.77%          0.00%        1.77%
  Limited Maturity (only)(3)      0.35%         1.00%       0.57%        1.92%          0.07%        1.85%
- -----------------------------------------------------------------------------------------------------------
<FN>
(1)  Pro  forma fee  table  assuming  reorganization  of  Corporate  Bond and  Limited  Maturity  Bond into
     Diversified Income Fund.
(2)  Pro forma fee table assuming reorganization of only Corporate Bond into Diversified Income Fund.
(3)  Pro forma fee table assuming  reorganization  of only Limited  Maturity Bond into  Diversified  Income
     Fund.
</FN>
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>
                                     PART C

                                OTHER INFORMATION


ITEM 15.  INDEMNIFICATION

A policy of insurance covering Security Management  Company,  LLC, its affiliate
Security  Distributors,  Inc.,  and all of the registered  investment  companies
advised by Security Management Company,  LLC insures the Registrant's  directors
and officers  against  liability  arising by reason of an alleged breach of duty
caused by any negligent act, error or accidental  omission in the scope of their
duties.

Paragraph 30 of the Registrant's  Bylaws, as amended February 3, 1995,  provides
in relevant part as follows:

30.  INDEMNIFICATION AND LIABILITY OF DIRECTORS AND OFFICERS. Each person who is
     or was a Director or officer of the Corporation or is or was serving at the
     request of the Corporation as a Director or officer of another  corporation
     (including the heirs, executors,  administrators and estate of such person)
     shall be  indemnified  by the  Corporation  as of right to the full  extent
     permitted  or  authorized  by the laws of the  State of  Kansas,  as now in
     effect and is hereafter  amended,  against any liability,  judgment,  fine,
     amount paid in settlement,  cost and expense  (including  attorney's  fees)
     asserted  or  threatened  against  and  incurred  by such person in his/her
     capacity  as or arising  out of his/her  status as a Director or officer of
     the  Corporation  or, if serving at the  request of the  Corporation,  as a
     Director or officer of another corporation. The indemnification provided by
     this bylaw  provision  shall not be  exclusive of any other rights to which
     those  indemnified  may be entitled  under the  Articles of  Incorporation,
     under  any other  bylaw or under any  agreement,  vote of  shareholders  or
     disinterested  directors or  otherwise,  and shall not limit in any way any
     right  which  the  Corporation  may  have  to  make  different  or  further
     indemnification with respect to the same or different persons or classes of
     persons.

     No  person  shall  be  liable  to the  Corporation  for any  loss,  damage,
     liability  or expense  suffered  by it on  account  of any action  taken or
     omitted to be taken by him/her as a Director or officer of the  Corporation
     or of any other corporation which he/she serves as a Director or officer at
     the  request of the  Corporation,  if such  person (a)  exercised  the same
     degree of care and skill as a prudent  man would have  exercised  under the
     circumstances in the conduct of his/her own affairs, or (b) took or omitted
     to take such action in reliance upon advice of counsel for the Corporation,
     or for  such  other  corporation,  or upon  statement  made or  information
     furnished by Directors,  officers,  employees or agents of the Corporation,
     or of such other  corporation,  which he/she had no  reasonable  grounds to
     disbelieve.

     In the event any  provision of this section 30 shall be in violation of the
     Investment Company Act of 1940, as amended, or of the rules and regulations
     promulgated thereunder, such provisions shall be void to the extent of such
     violations.

On  March  25,  1988,  the   shareholders   approved  the  Board  of  Directors'
recommendation  that the  Articles of  Incorporation  be amended by adopting the
following Article Fifteenth:

     "A director shall not be personally  liable to the  corporation or to its s
     for monetary  damages for breach of fiduciary duty as a director,  provided
     that this  sentence  shall not  eliminate  nor  limit  the  liability  of a
     director:

     A.  for any breach of his or her duty of loyalty to the  corporation  or to
         its stockholders;

     B.  for acts or omissions  not in good faith or which  involve  intentional
         misconduct or a knowing violation of law;

     C.  for any  unlawful  dividend,  stock  purchase or  redemption  under the
         provisions of Kansas Statutes Annotated (K.S.A.) 17-6424 and amendments
         thereto; or

     D.  for any  transaction  from  which  the  director  derived  an  improper
         personal benefit."

Insofar as  indemnification  for liability  arising under the  Securities Act of
1933 may be permitted to  directors,  officers  and  controlling  persons of the
Registrant pursuant to the foregoing  provisions,  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 director,  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 the Act and will be governed by the final adjudication of
such issue.

ITEM 16.  EXHIBITS

 (1)  Articles of Incorporation(a)
 (2)  Bylaws(a)
 (3)  Not Applicable
 (4)  Form of Plan of Reorganization(b)
 (5)  See Exhibits 1 and 2
 (6)  Investment Advisory Contract(a)
 (7)  (a)  Underwriter-Dealer Agreement(c)
      (b)  Distribution Agreement(a)
      (c)  Class B Distribution Agreement(a)
 (8)  Not Applicable
 (9)  Custodian Agreement(d)
(10)  (a)  Distribution Plan(a)
      (b)  Class B Distribution Plan(a)
      (c)  Multiple Class Plan(a)
(11)  Opinion of Counsel
(12)  Form of  Opinion  and  Consent  of  Counsel  supporting  tax  matters  and
      consequences
(13)  Administrative Services and Transfer Agency Agreement(a)
(14)  Consent of Independent Auditors
(15)  Not Applicable
(16)  Not Applicable
(17)  Not Applicable


(a)  Incorporated   herein  by  reference   to  the  Exhibits   filed  with  the
     Registrant's  Post-Effective Amendment No. 64 to Registration Statement No.
     2-38414 on Form N-1A as filed on November 29, 1999.

(b)  See Appendix A to the prospectus.

(c)  Incorporated herein by reference to the Exhibits filed with Security Equity
     Fund's  Post-Effective  Amendment  No.  84 to  Registration  Statement  No.
     2-19458 on Form N-1A as filed on January 28, 1999.

(d)  Incorporated   herein  by  reference   to  the  Exhibits   filed  with  the
     Registrant's  Post-Effective Amendment No. 62 to Registration Statement No.
     2-38414 on Form N-1A as filed on March 1, 1999.

ITEM 17.  UNDERTAKINGS

1.  The undersigned registrant agrees that prior to any public reoffering of the
    securities  registered  through the use of a  prospectus  which is a part of
    this  registration  statement  by any person or party who is deemed to be an
    underwriter  within the meaning of Rule 145(c) of the  Securities Act 17 CFR
    230.145(c),  the reoffering  prospectus will contain the information  called
    for by the applicable  registration  form for reofferings by persons who may
    be deemed  underwriters,  in addition to the  information  called for by the
    other items of the applicable form.

2.  The undersigned  registrant agrees that every prospectus that is filed under
    paragraph  (1)  above  will  be  filed  as a  part  of an  amendment  to the
    registration  statement  and  will  not  be  used  until  the  amendment  is
    effective,  and that, in determining  any liability under the 1933 Act, each
    post-effective  amendment shall be deemed to be a new registration statement
    for the securities  offered  therein,  and the offering of the securities at
    that time shall be deemed to be the initial bona fide offering of them.

3.  The undersigned registrant undertakes to file a post-effective  amendment to
    this registration statement upon the closing of the Reorganization described
    in  this  registration   statement  that  contains  an  opinion  of  counsel
    supporting the tax matters discussed in this registration statement.
<PAGE>
                                  SIGNATURES


Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,  the
Registrant has duly caused this Registration Statement on Form N-14 to be signed
on its behalf by the  undersigned,  thereunto  duly  authorized,  in the City of
Topeka and State of Kansas on the 1st day of March, 2000.

                                             SECURITY INCOME FUND


                                             By: JAMES R. SCHMANK
                                                 -------------------------------
                                                 James R. Schmank
                                                 President

Pursuant to the  requirements  of the Securities  Act of 1933, as amended,  this
Registration  Statement  has been signed below by the  following  persons in the
capacities and on the date indicated.


SIGNATURE                                     TITLE                    DATE


JAMES R. SCHMANK                      Director and President
- ------------------------------        (Principal Executive         March 1, 2000
James R. Schmank                            Officer)

JOHN D. CLELAND
- ------------------------------              Director               March 1, 2000
John D. Cleland

DONALD A. CHUBB, JR.
- ------------------------------              Director               March 1, 2000
Donald A. Chubb, Jr.

PENNY A. LUMPKIN
- ------------------------------              Director               March 1, 2000
Penny A. Lumpkin

MARK L. MORRIS, JR.
- ------------------------------              Director               March 1, 2000
Mark L. Morris, Jr.

MAYNARD OLIVERIUS
- ------------------------------              Director               March 1, 2000
Maynard Oliverius
<PAGE>
                                 EXHIBIT INDEX


(11)  Opinion of Counsel

(12)  Form of  Opinion  and  Consent  of  Counsel  supporting  tax  matters  and
      consequences

(14)  Consent of Independent Auditors


<PAGE>
[SBG LOGO]
- --------------------------------------------------------------------------------
Security Benefit Life Insurance Company                700 SW Harrison St.
Security Benefit Group, Inc.                           Topeka, Kansas 66636-0001
Security Distributors, Inc.                            (785) 431-3000
Security Management Company, LLC

March 3, 2000


Security Income Fund
700 Harrison Street
Topeka, KS 66636-0001


Subj:  Security Income Fund, Diversified Income Series


Dear Sir or Madam:

As  counsel  to  Security  Management  Company,   LLC,  Security  Income  Fund's
investment  manager, I am familiar with the business  operations,  practices and
procedures  of Security  Income Fund (the  "Company").  In  connection  with the
acquisition  of Corporate  Bond Series and Limited  Maturity  Bond Series of the
Company by Diversified Income Series, another Series of the Company, the Company
will issue shares of its common stock.  Such shares will be registered on a Form
N-14 registration  statement (the  "Registration  Statement") to be filed by the
Company with the Securities and Exchange Commission.

I have  examined  various  corporate  records of the  Company  as I have  deemed
necessary to give this opinion. On the basis of the foregoing,  it is my opinion
that the  shares of  common  stock of the  Company  being  registered  under the
Securities Act of 1933 in the  Registration  Statement have been duly authorized
and will be legally and validly issued,  fully paid, and  non-assessable  by the
Company  upon  transfer  of the assets of  Corporate  Bond  Series  and  Limited
Maturity  Bond  Series  pursuant  to the  terms  of the  Agreement  and  Plan of
Reorganization included in the Registration Statement.

I hereby consent to the filing of this opinion as an exhibit to the Registration
Statement.

Sincerely,

AMY J. LEE

Amy J. Lee, Esq.
Secretary
Security Income Fund


<PAGE>
                                 LAW OFFICES OF

                             DECHERT PRICE & RHOADS
                             1775 EYE STREET, N.W.
                           WASHINGTON, DC 20006-2401
                            TELEPHONE: (202) 261-3300
                               FAX: (202) 261-3333


30 ROCKFELLER PLAZA                                 TEN POST OFFICE SQUARE SOUTH
NEW YORK, NY 10112                                  BOSTON, MA 02109-4603
(212) 698-3500                                      (617) 728-7100

4000 BELL ATLANTIC TOWER                            90 STATE HOUSE SQUARE
1717 ARCH STREET                                    HARTFORD, CT 06103-3702
PHILADELPHIA, PA 19103-2793                         (860) 524-3999
(215) 994-4000
                                                    65 AVENUE LOUISE
THIRTY NORTH THIRD STREET                           1050 BRUSSELS, BELGIUM
HARRISBURG, PA 17101-1603                           (32-2) 535-5411
(717) 237-2000
                                                    TITMUSS SAINER DECHERT
PRINCETON PIKE CORPORATE CENTER                     2 SERJEANTS' INN
P.O. BOX 5218                                       LONDON EC4Y 1LT, ENGLAND
PRINCETON, NY 08543-5218                            (44-171) 583-5353
(609) 520-3200
                                                    151, BOULEVARD HAUSSMANN
                                                    75008 PARIS, FRANCE
                                                    (33-1) 53 83 84 70


                                 March __, 2000

DRAFT

Board of Directors
Security Income Fund
700 SW Harrison Street
Topeka, Kansas   66636

Dear Ladies and Gentlemen:

   You  have  requested  our  opinion   regarding  certain  Federal  income  tax
consequences to the Corporate Bond Series  ("Target"),  a separate series of the
Security Income Fund (the "Fund"), a Kansas  corporation,  to the holders of the
shares of Target (the  "Target  Shareholders"),  and to the  Diversified  Income
Series ("Acquiring Fund"), a separate series of the Fund, in connection with the
proposed  transfer of substantially all of the properties of Target to Acquiring
Fund in exchange  solely for voting  shares of common  stock of  Acquiring  Fund
("Acquiring  Fund Shares"),  followed by the distribution of such Acquiring Fund
Shares received by Target in complete liquidation and termination of Target (the
"Reorganization"), all pursuant to the Agreement and Plan of Reorganization (the
"Plan") dated as of [March] __, 2000 between the Fund on behalf of Target and on
behalf of Acquiring Fund.

   For purposes of this  opinion,  we have  examined and rely upon (1) the Plan,
(2) the Form N-14,  dated  [March] __, 2000 and filed by Acquiring  Fund on said
date with the Securities Exchange Commission,  (3) the facts and representations
contained in the letter  dated on or about the date hereof  addressed to us from
the  Fund on  behalf  of  Acquiring  Fund,  (4) the  facts  and  representations
contained in the letter  dated on or about the date hereof  addressed to us from
the Fund on behalf of Target, (5) the facts and representations contained in the
letter  dated on the closing  date of the  Reorganization  to be addressed to us
from the Fund on behalf of  Acquiring  Fund,  (6) the facts and  representations
contained in the letter dated on or about the closing date of the Reorganization
to be  addressed  to us from the Fund on behalf of  Target,  and (7) such  other
documents  and  instruments  as we have  deemed  necessary  or  appropriate  for
purposes of rendering this opinion.

   This opinion is based upon the Internal Revenue Code of 1986, as amended (the
"Code"),   United  States  Treasury   regulations,   judicial   decisions,   and
administrative  rulings and pronouncements of the Internal Revenue Service,  all
as in  effect  on  the  date  hereof.  This  opinion  is  conditioned  upon  the
Reorganization  taking  place in the manner  described  in the Plan and the Form
N-14 referred to above.

   Based upon the foregoing, it is our opinion that:

1.  The acquisition by Acquiring Fund of substantially  all of the properties of
    Target  in  exchange  solely  for  Acquiring  Fund  Shares  followed  by the
    distribution of Acquiring Fund Shares to the Target Shareholders in exchange
    for their Target shares in complete  liquidation  and  termination of Target
    will constitute a reorganization within the meaning of section 368(a) of the
    Code.  Target and Acquiring Fund will each be "a party to a  reorganization"
    within the meaning of section 368(b) of the Code.

2.  Target will not  recognize  gain or loss upon the transfer of  substantially
    all of its assets to Acquiring  Fund in exchange  solely for Acquiring  Fund
    Shares  except to the extent  that  Target's  assets  consist  of  contracts
    described in section 1256(b) of the Code ("Section 1256 Contracts");  Target
    will be  required  to  recognize  gain or loss on the  transfer  of any such
    Section 1256 contracts to Acquiring Fund pursuant to the  Reorganization  as
    if such Section 1256  contracts were sold to Acquiring Fund on the effective
    date of the Reorganization at their fair market value. We do not express any
    opinion as to whether any  accrued  market  discount  will be required to be
    recognized as ordinary  income.  Target will not recognize gain or loss upon
    the  distribution to its  shareholders of the Acquiring Fund Shares received
    by Target in the Reorganization.

3.  Acquiring  Fund will recognize no gain or loss upon receiving the properties
    of Target in exchange solely for Acquiring Fund Shares.

4.  The aggregated  adjusted basis to Acquiring Fund of the properties of Target
    received by  Acquiring  Fund in the  reorganization  will be the same as the
    aggregate  adjusted  basis  of  those  properties  in the  hands  of  Target
    immediately before the exchange.

5.  Acquiring  Fund's  holding  periods with respect to the properties of Target
    that Acquiring Fund acquires in the transaction  will include the respective
    periods  for  which  those  properties  were held by  Target  (except  where
    investment  activities  of  Acquiring  Fund have the effect of  reducing  or
    eliminating a holding period with respect to an asset).

6.  The  Target  Shareholders  will  recognize  no gain or loss  upon  receiving
    Acquiring Fund Shares solely in exchange for Target shares.

7.  The  aggregate  basis of the  Acquiring  Fund  Shares  received  by a Target
    Shareholder in the  transaction  will be the same as the aggregate  basis of
    Target shares surrendered by the Target Shareholder in exchange therefor.

8.  A Target Shareholder's holding period for the Acquiring Fund Shares received
    by the Target Shareholder in the transaction will include the holding period
    during  which the Target  Shareholder  held  Target  shares  surrendered  in
    exchange therefor,  provided that the Target Shareholder held such shares as
    a capital asset on the date of Reorganization.

   We  express  no opinion as to the  federal  income  tax  consequences  of the
Reorganization  except as expressly  set forth above,  or as to any  transaction
except those consummated in accordance with the Plan.

   Our opinion as  expressed  herein,  is solely for the benefit of Target,  the
Target  Shareholders,  and the  Acquiring  Fund,  and  unless  we give our prior
written  consent,  neither our opinion nor this opinion  letter may be quoted in
whole or in part or relied upon by any other person.


   We  hereby  consent  to the  filing  of this  opinion  as an  Exhibit  to the
Registration Statement and to the references to this firm in the Tax Section. In
giving this consent, we do not admit that we come within the category of persons
whose  consent is required  under  Section 7 of the  Securities  Act of 1933, as
amended,  or the rules and  regulations  of the Securities  Exchange  Commission
thereunder.

                                Very truly yours,


                             Dechert Price & Rhoads
<PAGE>
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                                 March __, 2000

DRAFT

Board of Directors
Security Income Fund
700 SW Harrison Street
Topeka, Kansas   66636

Dear Ladies and Gentlemen:

   You  have  requested  our  opinion   regarding  certain  Federal  income  tax
consequences to the Limited Maturity Series ("Target"), a separate series of the
Security Income Fund (the "Fund"), a Kansas  corporation,  to the holders of the
shares of Target (the  "Target  Shareholders"),  and to the  Diversified  Income
Series ("Acquiring Fund"), a separate series of the Fund, in connection with the
proposed  transfer of substantially all of the properties of Target to Acquiring
Fund in exchange  solely for voting  shares of common  stock of  Acquiring  Fund
("Acquiring  Fund Shares"),  followed by the distribution of such Acquiring Fund
Shares received by Target in complete liquidation and termination of Target (the
"Reorganization"), all pursuant to the Agreement and Plan of Reorganization (the
"Plan") dated as of [March] __, 2000 between the Fund on behalf of Target and on
behalf of Acquiring Fund.

   For purposes of this  opinion,  we have  examined and rely upon (1) the Plan,
(2) the Form N-14,  dated  [March] __, 2000 and filed by Acquiring  Fund on said
date with the Securities Exchange Commission,  (3) the facts and representations
contained in the letter  dated on or about the date hereof  addressed to us from
the  Fund on  behalf  of  Acquiring  Fund,  (4) the  facts  and  representations
contained in the letter  dated on or about the date hereof  addressed to us from
the Fund on behalf of Target, (5) the facts and representations contained in the
letter  dated on the closing  date of the  Reorganization  to be addressed to us
from the Fund on behalf of  Acquiring  Fund,  (6) the facts and  representations
contained in the letter dated on or about the closing date of the Reorganization
to be  addressed  to us from the Fund on behalf of  Target,  and (7) such  other
documents  and  instruments  as we have  deemed  necessary  or  appropriate  for
purposes of rendering this opinion.

   This opinion is based upon the Internal Revenue Code of 1986, as amended (the
"Code"),   United  States  Treasury   regulations,   judicial   decisions,   and
administrative  rulings and pronouncements of the Internal Revenue Service,  all
as in  effect  on  the  date  hereof.  This  opinion  is  conditioned  upon  the
Reorganization  taking  place in the manner  described  in the Plan and the Form
N-14 referred to above.

   Based upon the foregoing, it is our opinion that:

1.  The acquisition by Acquiring Fund of substantially  all of the properties of
    Target  in  exchange  solely  for  Acquiring  Fund  Shares  followed  by the
    distribution of Acquiring Fund Shares to the Target Shareholders in exchange
    for their Target shares in complete  liquidation  and  termination of Target
    will constitute a reorganization within the meaning of section 368(a) of the
    Code.  Target and Acquiring Fund will each be "a party to a  reorganization"
    within the meaning of section 368(b) of the Code.

2.  Target will not  recognize  gain or loss upon the transfer of  substantially
    all of its assets to Acquiring  Fund in exchange  solely for Acquiring  Fund
    Shares  except to the extent  that  Target's  assets  consist  of  contracts
    described in section 1256(b) of the Code ("Section 1256 Contracts");  Target
    will be  required  to  recognize  gain or loss on the  transfer  of any such
    Section 1256 contracts to Acquiring Fund pursuant to the  Reorganization  as
    if such Section 1256  contracts were sold to Acquiring Fund on the effective
    date of the Reorganization at their fair market value. We do not express any
    opinion as to whether any  accrued  market  discount  will be required to be
    recognized as ordinary  income.  Target will not recognize gain or loss upon
    the  distribution to its  shareholders of the Acquiring Fund Shares received
    by Target in the Reorganization.

3.  Acquiring  Fund will recognize no gain or loss upon receiving the properties
    of Target in exchange solely for Acquiring Fund Shares.

4.  The aggregated  adjusted basis to Acquiring Fund of the properties of Target
    received by  Acquiring  Fund in the  reorganization  will be the same as the
    aggregate  adjusted  basis  of  those  properties  in the  hands  of  Target
    immediately before the exchange.

5.  Acquiring  Fund's  holding  periods with respect to the properties of Target
    that Acquiring Fund acquires in the transaction  will include the respective
    periods  for  which  those  properties  were held by  Target  (except  where
    investment  activities  of  Acquiring  Fund have the effect of  reducing  or
    eliminating a holding period with respect to an asset).

6.  The  Target  Shareholders  will  recognize  no gain or loss  upon  receiving
    Acquiring Fund Shares solely in exchange for Target shares.

7.  The  aggregate  basis of the  Acquiring  Fund  Shares  received  by a Target
    Shareholder in the  transaction  will be the same as the aggregate  basis of
    Target shares surrendered by the Target Shareholder in exchange therefor.

8.  A Target Shareholder's holding period for the Acquiring Fund Shares received
    by the Target Shareholder in the transaction will include the holding period
    during  which the Target  Shareholder  held  Target  shares  surrendered  in
    exchange therefor,  provided that the Target Shareholder held such shares as
    a capital asset on the date of Reorganization.

   We  express  no opinion as to the  federal  income  tax  consequences  of the
Reorganization  except as expressly  set forth above,  or as to any  transaction
except those consummated in accordance with the Plan.

   Our opinion as  expressed  herein,  is solely for the benefit of Target,  the
Target  Shareholders,  and the  Acquiring  Fund,  and  unless  we give our prior
written  consent,  neither our opinion nor this opinion  letter may be quoted in
whole or in part or relied upon by any other person.

   We  hereby  consent  to the  filing  of this  opinion  as an  Exhibit  to the
Registration Statement and to the references to this firm in the Tax Section. In
giving this consent, we do not admit that we come within the category of persons
whose  consent is required  under  Section 7 of the  Securities  Act of 1933, as
amended,  or the rules and  regulations  of the Securities  Exchange  Commission
thereunder.

                                Very truly yours,


                             Dechert Price & Rhoads


<PAGE>
                         Consent of Independent Auditors


We consent to the references to our firm under the captions "Representations and
Warranties" in Appendix A and "Financial  Highlights" in Appendix B of the Proxy
Statement/Prospectus  and to the  incorporation by reference of our report dated
February 11, 2000 in the  Registration  Statement (Form N-14) of Security Income
Fund filed with the Securities and Exchange  Commission under the Securities Act
of 1933 (Registration No. 2-38414).



                                                               Ernst & Young LLP
Kansas City, Missouri
February 28, 2000


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