KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND
485B24E, 1997-06-24
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<PAGE>

                                                              File Nos. 33-42864
                                                                    and 811-6412


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM N-1A


REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
   Pre-Effective Amendment No.
   Post-Effective Amendment No. _10_                              _X_
                                       and

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940

   Amendment No.                _10_                              _X_


                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND
               (Exact name of Registrant as specified in Charter)


              200 Berkeley Street, Boston, Massachusetts 02116-5034
              (Address of Principal Executive Offices) (Zip Code11)

               Registrant's Telephone Number, including Area Code:
                                 (617) 210-3200

                         Rosemary D. Van Antwerp, Esq.
                     Keystone Investment Management Company
                              200 Berkeley Street,
                             Boston, MA 02116-5034
                    (Name and Address of Agent for Service)


It is proposed that this filing will become effective:

- ---  immediately upon filing pursuant to paragraph (b)

- -X-  on June 30, 1997 pursuant to paragraph (b)

- ---  60 days after filing pursuant to paragraph (a)(1)

- ---  on (date) pursuant to paragraph (a)(1)

- ---  75 days after filing pursuant to paragraph (a)(2)

- ---  on (date) pursuant to paragraph (a)(2)

If appropriate, check the following box:

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

   Pursuant to Rule 24f-2 under the Investment Company Act of 1940, the
Registrant has elected to register an indefinite number of shares under the
Securities Act of 1933. A Rule 24f-2 Notice for Registrant's fiscal year ended
February 28, 1997 was filed on April 28, 1997.

<PAGE>

        CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933
- --------------------------------------------------------------------------------
                                   Proposed      Proposed
Title of                           Maximum       Maximum
Securities          Amount         Offering      Aggregate      Amount of
Being               Being          Price         Offering       Registration
Registered          Registered     Per Unit      Price*         Fee
- --------------------------------------------------------------------------------
Shares of
beneficial
interest
without Par
Value                 940,781      $9.71          $9,134,983     $0
- --------------------------------------------------------------------------------

 

* The  calculation of the maximum  aggregate  offering price is made pursuant to
  Rule 24e-2 under the Investment  Company Act of 1940.  2,850,673 shares of the
  Fund were redeemed  during its fiscal period ended  February 28, 1997. Of such
  shares,  1,909,892 were used for a reduction prusuant to Ruel 24f-2 during the
  current year.  The remaining  940,781 shares are being used for a reduction in
  this filing.

<PAGE>

                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND

                                   CONTENTS OF
                         POST-EFFECTIVE AMENDMENT No. 10
                                       to
                             REGISTRATION STATEMENT

This Post-Effective Amendment No. 10 to Registration Statement No. 33-42864 
consists of the following pages, items of information, and documents:

                                The Facing Sheet

                                The Contents Page

                            The Cross-Reference Sheet

                                     PART A

                                   Prospectus

                                     PART B

                       Statement of Additional Information

                                     PART C

               PART C - OTHER INFORMATION - ITEMS 24(a) and 24(b)

                              Financial Statements

                          Independent Auditors' Report

                               Listing of Exhibits

         PART C - OTHER INFORMATION - ITEMS 25-32 - and SIGNATURE PAGES

                         Number of Holders of Securities

                                 Indemnification

              Business and Other Connections of Investment Adviser

                              Principal Underwriter

                               Management Services

                                  Undertakings

                        Location of Accounts and Records

                                   Signatures

                     Exhibits (including Powers of Attorney)

<PAGE>

                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND

Cross-Reference Sheet pursuant to Rules 481(a) under the Securities of 1933.

Items in
Part A of
Form N-1A           Prospectus Caption
- ---------           ------------------

    1               Cover Page

    2               Expense Information

    3               Financial Highlights
                    Performance Data

    4               Cover Page
                    The Fund
                    Investment Objective and Policies
                    Risk Factors
                    Investment Restrictions
                    Additional Investment Information

    5               Fund Management and Expenses
                    Additional Information

    5A              Not applicable

    6               The Fund
                    Dividends and Taxes
                    How to Buy Shares
                    Alternative Sales Options
                    Fund Shares
                    Shareholder Services

    7               Pricing Shares
                    Fund Management and Expenses
                    How to Buy Shares
                    Alternative Sales Options
                    Distribution Plan
                    Shareholder Services

    8               How to Redeem Shares

    9               Not applicable

Items in
Part B of
Form N-1A           Statement of Additional Infomation Caption
- ---------           ------------------------------------------

   10               Cover Page

   11               Table of Contents

   12               Not applicable

   13               Investment Restrictions
                    Appendix

   14               Trustees and Officers

   15               Additional Information

   16               Investment Adviser
                    Distributor
                    Distribution Plan
                    Additional Information

   17               Brokerage

   18               Declaration of Trust

   19               Valuation of Securities
                    Distribution Plan

   20               Distributions and Taxes

   21               Distributor

   22               Standardized Total Return and Yield Quotations

   23               Financial Statements

<PAGE>

                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND

                                     PART A

                                   PROSPECTUS


<PAGE>

   
  PROSPECTUS                                                     July 1, 1997
    
 
   
  KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND
    
 
  INSTITUTIONAL SERVICE SHARES
  INSTITUTIONAL SHARES
 
   
           Keystone Institutional Adjustable Rate Fund (the "Fund") seeks to
  provide a high level of current income, consistent with low volatility of
  principal, by investing under ordinary circumstances at least 65% of its
  assets in adjustable rate securities. Such securities include adjustable
  rate mortgage securities that are issued or guaranteed by the United States
  ("U.S.") government, its agencies or instrumentalities. The Fund does not
  attempt to maintain a constant price per share. The Fund does, however,
  follow a strategy that seeks to minimize changes in its net asset value per
  share by investing primarily in adjustable rate securities whose interest
  rates are periodically reset when market rates change.
    
 
           The Fund is designed for institutional investors and seeks to
  provide a relatively stable net asset value while providing high current
  income relative to high-quality, short-term investment alternatives.
 
   
           The Fund offers Institutional Service (formerly Class Y) and
  Institutional (formerly Class Z) shares. Information on share classes and
  their fee and sales charge structures may be found in the "Expense
  Information," "Distribution Plan," "How to Buy Shares," "Alternative Sales
  Options" and "Fund Shares" sections of this prospectus.
    
 
           This prospectus concisely states information about the Fund that
  you should know before investing. Please read it and retain it for future
  reference.
 
   
           Additional information about the Fund is contained in a statement
  of additional information dated July 1, 1997, which has been filed with the
  Securities and Exchange Commission and is incorporated by reference into
  this prospectus. For a free copy, or for other information, write to The
  Fund at 200 Berkeley Street, Boston, Massachusetts 02116 or the address or
  call (800) 633-5034.
    
 
  SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR
  ENDORSED BY, ANY BANK, AND SHARES ARE NOT INSURED OR OTHERWISE PROTECTED BY
  THE U.S. GOVERNMENT, THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL
  RESERVE BOARD, OR ANY OTHER GOVERNMENT AGENCY AND INVOLVE RISK, INCLUDING
  THE POSSIBLE LOSS OF PRINCIPAL.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
  AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
  SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
  PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION
  TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
                   KEEP THIS PROSPECTUS FOR FUTURE REFERENCE
 
                                                                          
 
<PAGE>
                               TABLE OF CONTENTS
 
   
<TABLE>
<S>                                                      <C>
EXPENSE INFORMATION                                        2
FINANCIAL HIGHLIGHTS                                       3
THE FUND                                                   4
INVESTMENT OBJECTIVE AND POLICIES                          4
INVESTMENT RESTRICTIONS                                    6
RISK FACTORS                                               6
PRICING SHARES                                             8
DIVIDENDS AND TAXES                                        8
FUND MANAGEMENT AND EXPENSES                               9
DISTRIBUTION PLAN                                         11
HOW TO BUY SHARES                                         11
ALTERNATIVE SALES OPTIONS                                 12
HOW TO REDEEM SHARES                                      13
SHAREHOLDER SERVICES                                      14
PERFORMANCE DATA                                          15
FUND SHARES                                               15
ADDITIONAL INFORMATION                                    15
ADDITIONAL INVESTMENT INFORMATION                         (i)
</TABLE>
    
 
                              EXPENSE INFORMATION
 
       The purpose of this fee table is to assist investors in understanding the
costs and expenses that an investor in each class of shares of the Fund will
bear directly or indirectly. For a more complete description of the various
costs and expenses, see the "Fund Management and Expenses" and "Distribution
Plan" sections of this prospectus.
   
       The following table shows for the Fund the estimated annual operating
expenses (as a percentage of average net assets) attributable to each Class of
Shares, together with examples of the cumulative effect of such expenses on a
hypothetical $1,000 investment in each Class for the periods specified assuming
(i) a 5% annual return, and (ii) redemption at the end of each period.
    
 
   
<TABLE>
<CAPTION>
                              ANNUAL FUND OPERATING EXPENSES(1)
                                 Institutional
                                    Service       Institutional
                                    Shares          Shares(2)
<S>                              <C>              <C>
Management Fees                       0.30%            0.30%
12b-1 Fees                            0.25%            0.00%
Other Expenses                        None             None
Total Fund Operating Expenses         0.55%            0.30%
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                            EXAMPLES (3)
                   Institutional
                      Service        Institutional
                      Shares           Shares(2)
<S>                <C>               <C>
After 1 Year            $ 6               $ 3
After 3 Years           $18               $10
After 5 Years           $31               $17
After 10 Years          $69               $38
</TABLE>
    
 
AMOUNTS SHOWN IN THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST
OR FUTURE EXPENSES; ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
 
   
(1) Expense ratios are for the Fund's fiscal period ended February 28, 1997.
    
   
(2) Institutional shares are available only to certain investors. See
    "Alternative Sales Options  -- Institutional Shares."
    
(3) The Securities and Exchange Commission requires use of a 5% annual return
    figure for purposes of this example. Actual return for the Fund may be
    greater or less than 5%.
 
                                       2                                  
 
<PAGE>
                              FINANCIAL HIGHLIGHTS
 
       The following table contains important financial information relating to
the Fund and has been audited by KPMG Peat Marwick LLP, the Fund's independent
auditors. The table appears in the Fund's Annual Report and should be read in
conjunction with the Fund's financial statements and related notes, which also
appear, together with the independent auditors' report, in the Fund's Annual
Report. The Fund's financial statements, related notes, and independent
auditors' report are incorporated by reference into the statement of additional
information. Additional information about the Fund's performance is contained in
its Annual Report, which will be made available upon request and without charge.
 
   
(For a share outstanding throughout each period)
    
 
   
KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND -- INSTITUTIONAL SERVICE SHARES
    
 
   
<TABLE>
<CAPTION>
                                                                FIVE MONTHS ENDED        YEAR ENDED         MAY 23, 1994 (DATE OF
                                                                  FEBRUARY 28,         SEPTEMBER 30,       INITIAL PUBLIC OFFERING)
                                                                     1997(a)         1996(b)     1995       TO SEPTEMBER 30, 1994
<S>                                                             <C>                  <C>        <C>        <C>
NET ASSET VALUE BEGINNING OF PERIOD..........................          $9.68           $9.65     $9.61               $9.73
INCOME FROM INVESTMENT OPERATIONS:
Net investment income........................................           0.28            0.65      0.64                0.17
Net realized and unrealized gain (loss) on investments.......           0.00           (0.03)    (0.02)              (0.13)
Total from investment operations.............................           0.28            0.62      0.62                0.04
LESS DISTRIBUTIONS FROM:
Net investment income........................................          (0.22)          (0.58)    (0.53)              (0.16)
In excess of net investment income...........................          (0.02)          (0.01)    (0.05)                  0
Total distributions..........................................          (0.24)          (0.59)    (0.58)              (0.16)
NET ASSET VALUE END OF PERIOD................................          $9.72           $9.68     $9.65               $9.61
TOTAL RETURN.................................................          2.97%           6.60%     6.60%               0.35%
RATIOS/SUPPLEMENTAL DATA
  RATIOS TO AVERAGE NET ASSETS:
  Total expenses.............................................          0.55%(c)        0.55%     0.55%               0.43%(c)
  Net investment income......................................          6.39%(c)        6.64%     6.70%               5.03%(c)
Portfolio turnover rate......................................            44%             85%       56%                 63%
NET ASSETS END OF PERIOD (THOUSANDS).........................         $3,564         $14,361    $2,871                  $1
</TABLE>
    
 
   
KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND -- INSTITUTIONAL SHARES
    
 
   
<TABLE>
<CAPTION>
                                                         FIVE MONTHS ENDED
                                                           FEBRUARY 28,                    YEAR ENDED SEPTEMBER 30,
                                                              1997(a)         1996(b)     1995       1994      1993(b)     1992
<S>                                                      <C>                  <C>        <C>        <C>        <C>        <C>
NET ASSET VALUE BEGINNING OF PERIOD...................          $9.68           $9.65      $9.61      $9.93      $9.88     $10.00
INCOME FROM INVESTMENT OPERATIONS:
Net investment income.................................           0.28            0.64       0.63       0.63       0.54       0.67
Net realized and unrealized gain (loss) on
  investments.........................................           0.00            0.00       0.01      (0.49)     (0.01)     (0.15)
Total from investment operations......................           0.28            0.64       0.64       0.14       0.53       0.52
LESS DISTRIBUTIONS FROM:
Net investment income.................................          (0.23)          (0.60)     (0.55)     (0.44)     (0.48)     (0.64)
In excess of net investment income....................          (0.02)          (0.01)     (0.05)     (0.02)         0          0
Total distributions...................................          (0.25)          (0.61)     (0.60)     (0.46)     (0.48)     (0.64)
NET ASSET VALUE END OF PERIOD.........................          $9.71           $9.68      $9.65      $9.61      $9.93      $9.88
TOTAL RETURN..........................................          2.97%           6.86%      6.87%      1.43%      5.53%      5.46%
RATIOS/SUPPLEMENTAL DATA
RATIOS TO AVERAGE NET ASSETS:
  Total expenses......................................          0.30%(c)        0.30%      0.30%      0.30%      0.30%      0.30%
  Net investment income...............................          6.79%(c)        6.84%      6.61%      5.15%      5.46%      6.83%
Portfolio turnover rate...............................            44%             85%        56%        63%        81%        88%
NET ASSETS END OF PERIOD (THOUSANDS)..................        $70,264         $65,974    $23,616    $25,200    $60,035    $51,625
</TABLE>
    
 
   
(a) The Fund changed its fiscal year from September 30 to the last day in
    February during the current period.
    
   
(b) Per share calculations based on weighted average shares outstanding.
    
   
(c) Annualized.
    
 
                                       3                                  
 
<PAGE>
THE FUND
 
   
       The Fund is an open-end, diversified management company, commonly known
as a mutual fund. The Fund was formed as a Massachusetts business trust on June
19, 1991. The Fund is one of more than thirty funds advised and managed by
Keystone Investment Management Company ("Keystone"), the Fund's investment
adviser.
    
 
INVESTMENT OBJECTIVE AND POLICIES
 
INVESTMENT OBJECTIVE
 
       The Fund seeks a high level of current income consistent with low
volatility of principal.
 
   
       The investment objective of the Fund is fundamental and may not be
changed without the vote of the holders of a majority of the Fund's outstanding
shares as defined in the Investment Company Act of 1940 ("1940 Act"), which
means the lesser of (1) 67% of the shares represented at a meeting at which more
than 50% of the outstanding shares are represented or (2) more than 50% of the
outstanding shares (a "1940 Act Majority").
    
 
       Any investment involves risk, and there is no assurance that the Fund
will achieve its investment objective.
 
PRINCIPAL INVESTMENTS
 
       Under ordinary circumstances, the Fund invests at least 65% of its assets
in mortgage securities or other securities collateralized by or representing an
interest in a pool of mortgages (collectively, "Mortgage Securities"), which
securities have interest rates that reset at periodic intervals and are issued
or guaranteed by the U.S. government, its agencies or instrumentalities.
 
   
       The Fund does not attempt to maintain a constant price per share.
However, the Fund follows a strategy that seeks to minimize changes in its net
asset value per share by investing primarily in adjustable rate securities,
whose interest rates are periodically reset when market rates change. The
average dollar weighted reset period of adjustable rate securities held by the
Fund will not exceed one year. The Fund seeks to provide a relatively stable net
asset value while providing high current income relative to high-quality,
short-term investment alternatives.
    
 
INVESTMENT POLICIES AND APPROACH
 
   
       Keystone believes that, by investing primarily in Mortgage Securities
with adjustable rates of interest, the Fund will achieve a less volatile net
asset value per share than is characteristic of mutual funds that invest
primarily in U.S. government securities that pay a fixed rate of interest.
    
 
       Unlike fixed rate mortgages and loans that generally decline in value
during periods of rising interest rates, adjustable rate Mortgage Securities
("ARMS") allow the Fund to participate in increases in interest rates through
periodic adjustments in the coupons of the underlying mortgages or loans,
resulting in both higher current yields and lower price fluctuations in the
Fund's net asset value per share. The Fund is also affected by decreases in
interest rates through periodic decreases in the coupons of the underlying
mortgages or loans resulting in lower income to the Fund. This downward
adjustment results in lower price fluctuations in the net asset value per share
in a decreasing interest rate environment. As the interest rates on the
mortgages or loans underlying the Fund's investments are reset periodically,
coupons of portfolio securities will gradually align themselves to reflect
changes in market rates and should cause the net asset value per share of the
Fund to fluctuate less dramatically than it would if the Fund invested in more
traditional long-term, fixed rate mortgages.
 
       The portion of the Fund that is not invested in ARMS, if any, is intended
to increase the Fund's total return from changes in market rates while not
materially increasing the volatility of the net asset value per share.
 
PERMITTED INVESTMENTS
 
       The Fund invests in Mortgage Securities that are issued or guaranteed by
the U.S. government, one of its agencies or instrumentalities, such as the
Government National Mortgage Association ("GNMA"), the Federal National Mortgage
Association ("FNMA") and the Federal Home Loan Mortgage Corporation ("FHLMC").
 
                                       4                                  
 
<PAGE>
Securities issued by GNMA, but not those issued by FNMA or FHLMC, are backed by
the full faith and credit of the U.S. government.
 
       The Fund invests in mortgage pass-through securities representing
participation interests in pools of residential mortgage loans originated by
U.S. governmental lenders and guaranteed, to the extent provided in such
securities, by the U.S. government, its agencies or instrumentalities. Such
securities, which are ownership interests in the underlying mortgage loans,
differ from conventional debt securities, which provide for periodic payment of
interest in fixed amounts (usually semiannually) and principal payments at
maturity or on specified call dates. Mortgage pass-through securities provide
for monthly payments that are a "pass-through" of the monthly interest and
principal payments (including any prepayments) made by the individual borrowers
on the pooled mortgage loans, net of any fees paid to the guarantor of such
securities and the servicer of the underlying mortgage loans.
 
       The guaranteed mortgage pass-through securities in which the Fund invests
include those issued or guaranteed by GNMA, FNMA and FHLMC. GNMA certificates
are direct obligations of the U.S. government and, as such, are backed by the
full faith and credit of the U.S. government. FNMA is a federally chartered,
privately owned corporation. FHLMC is a corporate instrumentality of the U.S.
government. FNMA and FHLMC certificates are not backed by the full faith and
credit of the U.S. government and are supported only by the credit of FNMA and
FHLMC, which have the right to borrow to meet their obligations from an existing
line of credit with the U.S. Treasury. Although their close relationship with
the U.S. government is believed to make them high quality securities with
minimal credit risks, the U.S. government is not obligated by law to support
either FNMA or FHLMC. Historically, however, there have been no defaults in any
FNMA or FHLMC issues.
 
       Certificates for Mortgage Securities evidence an interest in a specific
pool of mortgages. These certificates are, in most cases, "modified
pass-through" instruments, wherein the issuing agency guarantees the payment of
principal and interest on mortgages underlying the certificates, whether or not
such amounts are collected by the issuer on the underlying mortgages.
 
   
       Adjustable rate mortgages are an important form of residential financing.
Generally, adjustable rate mortgages are mortgages that have a specified
maturity date and amortize in a manner similar to that of a fixed rate mortgage.
As a result, in periods of declining interest rates there is a reasonable
likelihood that adjustable rate mortgages will behave like fixed rate mortgages
in that current levels of prepayments of principal on the underlying mortgages
could accelerate. However, one difference between adjustable rate mortgages and
fixed rate mortgages is that for certain types of adjustable rate mortgages the
rate of amortization of principal, as well as interest payments, can and does
change in accordance with movements in a particular, pre-specified, published
interest rate index. The amount of interest due a holder of an adjustable rate
mortgage is calculated by adding a specified additional amount (margin) to the
index, subject to limitations or "caps" or "floors" on the maximum and minimum
interest rate that is charged to the mortgagor during the life of the mortgage
or to maximum and minimum changes in that interest rate during a given period.
It is these special characteristics, unique to the adjustable rate mortgages
underlying the ARMS in which the Fund invests, that are believed to make ARMS
attractive investments for seeking to accomplish the Fund's objective. For
further information, see "Prepayments" in the section on "Risk Factors."
    
 
OTHER PERMITTED INVESTMENTS
 
       The Fund may invest in collateralized mortgage obligations ("CMOs")
issued or guaranteed by the U.S. government, its agencies or instrumentalities.
The Fund intends to invest only in CMOs that, in Keystone's opinion, are
suitable in light of the Fund's investment objective and policies. For further
information, see "Additional Investment Information."
 
       In addition, the Fund may enter into repurchase agreements and reverse
repurchase agreements for eligible securities and U.S. government obligations.
For further information, see "Additional Investment Information."
 
       The Fund may also invest up to 35% of its assets under ordinary
circumstances and up to 100% of its assets for temporary defensive purposes in
obligations of the U.S. government, its agencies or instrumentalities, such as
the Federal Home Loan Banks, FNMA, GNMA, FHLMC or the Federal Farm Credit Banks.
 
                                       5                                  
 
<PAGE>
       The Fund may assume a temporary defensive position, for example, upon
Keystone's determination that market conditions so warrant. The Fund may not be
pursuing its investment objective when it assumes a temporary defensive
position.
 
       The Fund will not invest in derivative Mortgage Securities other than the
CMOs described in "Additional Investment Information."
 
INVESTMENT RESTRICTIONS
 
       The Fund has adopted the fundamental restrictions summarized below, which
may not be changed without the vote of a 1940 Act Majority of the Fund's
outstanding shares. These restrictions and certain other fundamental and
non-fundamental restrictions are set forth in detail in the statement of
additional information. Unless otherwise stated, all references to the Fund's
assets are in terms of current market value.
 
       Generally the Fund may not do the following: (1) with respect to 75% of
its total assets, invest more than 5% of the value of its total assets in the
securities of any one issuer; this limitation does not apply to investments in
securities issued or guaranteed by the U.S. government, its agencies or
instrumentalities; and (2) borrow money or enter into reverse repurchase
agreements, except that the Fund may (a) enter into reverse repurchase
agreements or (b) borrow money from banks for temporary or emergency purposes in
aggregate amounts of up to one-third of the value of the Fund's net assets;
provided that, while borrowings exceed 5% of the Fund's net assets, any such
borrowings will be repaid before additional investments are made.
 
       The Fund intends to follow the policies of the Securities and Exchange
Commission as they are adopted from time to time with respect to illiquid
securities, including, at this time, (1) treating as illiquid, securities that
may not be sold or disposed of in the ordinary course of business within seven
days at approximately the value at which the Fund has valued such securities on
its books and (2) limiting its holdings of such securities to 15% of net assets.
 
RISK FACTORS
 
       Like any investment, your investment in the Fund involves an element of
risk. Before you buy shares of the Fund, you should carefully evaluate your
ability to assume the risks your investment in the Fund poses.
 
       By itself, the Fund does not constitute a balanced investment program.
Investors should take into account their investment objectives as well as other
investments when considering the purchase of shares of any investment company.
 
       Certain risks related to the Fund are discussed below. In addition to the
risks discussed in this section, specific risks attendant to individual
securities or investment practices are discussed in "Additional Investment
Information" and the statement of additional information.
 
       Should the Fund need to raise cash to meet a large number of redemptions
the Fund might have to sell portfolio securities at a time when it would be
disadvantageous to do so.
 
INTEREST RATE RISK
 
       The values of fixed-rate securities fluctuate in response to changes in
interest rates; generally rising when interest rates decline, and falling, when
interest rates rise. As a result, if interest rates increase after a security is
purchased, the security, if sold prior to maturity, may return less than its
cost. The corresponding increase or decrease in the value of fixed-rate
securities generally becomes more significant for instruments with longer
remaining maturities or longer expected remaining lives. Moreover, investment
yields on relatively short-term investments are subject to substantial and rapid
fluctuation.
 
PREPAYMENTS
 
       The Mortgage Securities in which the Fund principally invests differ from
conventional bonds in that principal is repaid over the life of the investment
rather than at maturity. As a result, the holder of the investment (I.E., the
Fund) receives monthly scheduled payments of principal and interest and may
receive unscheduled principal payments representing prepayments on the
underlying mortgages or loans. When the holder reinvests
 
                                       6                                  
 
<PAGE>
the payments and any unscheduled prepayments of principal it receives, it may
receive a rate of interest that is higher or lower than the rate on the existing
investment.
 
RESETS
 
       The Fund invests in ARMS and adjustable rate CMOs that hold securities
whose interest rates are readjusted at intervals of up to three years (generally
one year or less) to an increment over some predetermined interest rate index.
 
       There are three main categories of indices: (1) those based on U.S.
Treasury securities; (2) those derived from a calculated measure, such as a cost
of funds index; or (3) a moving average of mortgage rates. Commonly utilized
indices include the one-year, three-year and five-year constant maturity
Treasury rates, the three-month Treasury Bill rate, the 180-day Treasury Bill
rate, rates on longer-term Treasury securities, the 11th District Federal Home
Loan Bank Cost of Funds, the National Median Cost of Funds, the one-month,
three-month, six-month or one-year London Interbank Offered Rate ("LIBOR"), the
prime rate of a specific bank and commercial paper rates. Some indices, such as
the one-year constant maturity Treasury rate, closely mirror changes in market
interest rate levels. Others, such as the 11th District Home Loan Bank Cost of
Funds Index, tend to lag behind changes in market rate levels and tend to be
somewhat less volatile.
 
   
       The Fund's net asset value per share could vary to the extent that
current interest rates on Mortgage Securities are different than market interest
rates during periods between coupon reset dates. During periods of rising or
falling interest rates, changes in the coupon rate lag behind changes in the
market rate possibly resulting in a net asset value per share that is slightly
lower or higher, as the case may be, until the coupon resets to market rates.
Shareholders could lose some of their principal if they sold their shares of the
Fund during periods of rising interest rates before the interest rates on the
underlying mortgages or loans were adjusted to reflect current market rates.
During periods of fluctuations in interest rates, the Fund's net asset value per
share will fluctuate as well.
    
 
CAPS AND FLOORS
 
       The Fund invests in ARMS and CMOs whose underlying securities will
frequently have "caps" and "floors" that limit the maximum amount by which the
loan rate to the borrower may change up or down per reset or adjustment interval
and over the life of the loan.
 
       The Fund will not benefit from increases in interest rates to the extent
that interest rates rise to the point where they cause the current coupon of
loans or mortgages held as investments to reach their maximum allowable annual
or lifetime reset limits (cap rates). An increase in interest rates above the
cap rates would cause such mortgages or loans to "cap out" and to behave more
like long-term fixed rate debt securities. Conversely, the Fund will not benefit
from decreases in interest rates to the extent that prepayments increase. In
addition, when interest rates decline, the Fund's income will be reduced when
the interest rates on underlying adjustable rate mortgages are reduced.
 
ADDITIONAL FACTORS
 
       In an environment where interest rates on short-term fixed-rate debt
securities are rising faster than interest rates on long-term fixed-rate debt
securities, the market value of Mortgage Securities will typically under perform
other fixed-rate debt securities. In addition, because of the user risk
described above, the Fund's investments may not perform as expected.
 
       ARMS are less effective as a means of "locking in" long-term interest
rates than fixed-rate debt securities, since their market values will generally
vary inversely with changes in market interest rates, (I.E., declining when
interest rates rise and rising when interest rates decline). However, the market
value of ARMS is less likely to decline than fixed-rate debt securities of
comparable maturities during periods of rapidly rising rates. In addition, ARMS
have less potential than fixed-rate debt securities for capital appreciation due
to their adjustable rate features and the likelihood of increased prepayments of
mortgages as interest rates decline.
 
       If ARMS are purchased at a premium, unscheduled principal prepayments may
result in some loss of the holder's principal investment to the extent of the
premium paid over the face value of the security. On the other hand, if ARMS are
purchased at a discount, both a scheduled payment of principal and an
unscheduled
 
                                       7                                  
 
<PAGE>
prepayment of principal will increase current and total returns and will
accelerate the recognition of income, which, when distributed to shareholders,
will be taxable as ordinary income.
 
       While the Fund may invest in securities that are issued or guaranteed by
the U.S. government, its agencies or instrumentalities, the market value of such
securities is not guaranteed.
 
       For further information about the risks associated with the Fund's
investments and investment techniques, see the section of this prospectus
entitled "Additional Investment Information" and the statement of additional
information.
 
PRICING SHARES
 
   
       The Fund computes its net asset value as of the close of trading
(currently 4:00 p.m. Eastern time) on each day that the New York Stock Exchange
(the "Exchange") is open. However, the Fund does not compute its net asset value
on days when changes in the value of the Fund's portfolio securities do not
affect the current net asset value of its shares. The Exchange currently is
closed on weekends, New Year's Day, Presidents' Day, Good Friday, Memorial Day,
Independence Day, Labor Day, Thanksgiving Day and Christmas Day. The net asset
value per share of the Fund is arrived at by determining the value of the Fund's
assets, subtracting its liabilities and dividing the result by the number of its
shares outstanding.
    
 
       The Fund values most of its securities at the mean of the bid and asked
price at the time of valuation and values other securities at fair value
according to procedures established by the Board of Trustees, including valuing
certain of its fixed rate Mortgage Securities on the basis of valuations
provided by a pricing service approved by the Fund's Board of Trustees, which
uses information with respect to transactions in Mortgage Securities, quotations
from dealers, market transactions in comparable securities and various
relationships between securities in determining value.
 
   
       Current values for the Fund's portfolio securities are determined as
follows:
    
 
   
       (1) securities with initial and remaining maturities of sixty days or
less at amortized cost (original purchase cost as adjusted for amortization of
premium or accretion of discount), which, when combined with accrued interest,
approximates market;
    
 
       (2) securities with remaining maturities of more than sixty days when
purchased that are held on the sixtieth day prior to maturity are valued at
amortized cost (market value on the sixtieth day adjusted for amortization of
premium or accretion of discount), which, when combined with accrued interest,
approximates market;
 
       (3) all other investments are valued at market value or, where market
quotations are not readily available, at fair value as determined in good faith
in accordance with procedures established by the Board of Trustees.
 
DIVIDENDS AND TAXES
 
   
       The Fund has qualified, and intends to continue to qualify, as a
regulated investment company (a "RIC") under the Internal Revenue Code of 1986,
as amended (the "Code"). The Fund qualifies if, among other things, it
distributes to its shareholders at least 90% of its net investment income for
its fiscal year. The Fund also intends to make timely distributions, if
necessary, sufficient in amount to avoid the nondeductible 4% excise tax imposed
on a RIC when it fails to distribute, with respect to each calendar year, at
least 98% of its ordinary income for such calendar year and 98% of its net
capital gains for the one-year period ending on October 31 of such calendar
year.
    
 
   
       If the Fund qualifies as a RIC, and if it distributes all of its net
investment income and net capital gains, if any, to shareholders, it will be
relieved of any federal income tax liability.
    
 
   
       The Fund intends to declare dividends from net investment income daily
and distribute to its shareholders such dividends monthly and declare and
distribute all net realized capital gains, if any, at least annually.
Shareholders receive Fund distributions in the form of additional shares of that
class of shares upon which the distribution is based or, at the shareholder's
option, in cash.
    
 
                                       8                                  
 
<PAGE>
   
       Because Institutional Service shares bear most of the costs of
distribution of such shares through an annual distribution fee, expenses
attributable to Institutional Service shares will generally be higher than those
of Institutional shares, and income distributions paid by the Fund with respect
to Institutional shares will generally be greater than those paid with respect
to Institutional Service shares.
    
 
   
       Dividends and distributions other than capital gains dividends are
taxable as ordinary income to shareholders who are subject to federal income
taxes and may also be subject to state and local taxes. The Fund advises its
shareholders annually as to the federal tax status of all distributions made
during the year.
    
 
   
       Any taxable distribution declared in October, November or December to
shareholders of record in such month and paid by the following January 31 would
be includable in the taxable income of shareholders as if paid on December 31 of
the year in which the distribution was declared.
    
 
   
       The Fund intends to distribute its net capital gains as capital gain
dividends. Shareholders should treat such dividends as long-term capital gains.
Such distributions will be designated as long-term capital gain dividends by a
written notice mailed to each shareholder no later than 60 days after the close
of the Fund's taxable year. If a shareholder receives a capital gain dividend
and holds his shares for six months or less, then any allowable loss on
disposition of Fund shares will be treated as a long-term capital loss to the
extent of such capital gain dividend.
    
 
       Since none of the Fund's income will consist of corporate dividends, no
distributions will qualify for the corporate dividends received deduction.
 
FUND MANAGEMENT AND EXPENSES
 
BOARD OF TRUSTEES
 
   
       Under Massachusetts law, the Fund's Board of Trustees has absolute and
exclusive control over the management and disposition of all assets of the Fund.
Subject to the authority of the Fund's Board of Trustees, Keystone provides
investment advice, management and administrative services to the Fund.
    
 
INVESTMENT ADVISER
 
   
       Keystone has provided investment advisory and management services to
investment companies and private accounts since 1932. Keystone is located at 200
Berkeley Street, Boston, Massachusetts 02116-5034.
    
 
   
       Keystone is an indirect wholly-owned subsidiary of First Union National
Bank ("FUNB"). FUNB is a subsidiary of First Union Corporation ("First Union"),
the sixth largest bank holding company in the U.S. based on total assets as of
March 31, 1997.
    
 
   
       First Union is headquartered in Charlotte, North Carolina, and had $137
billion in consolidated assets as of March 31, 1997. First Union and its
subsidiaries provide a broad range of financial services to individuals and
businesses throughout the U.S. The Capital Management Group of FUNB and
Evergreen Asset Management Corp., a wholly-owned subsidiary of FUNB, manage or
otherwise oversee the investment of over $62 billion in assets as of March 31,
1997 belonging to a wide range of clients, including the Evergreen Keystone
funds.
    
 
       Pursuant to its Investment Advisory and Management Agreement with the
Fund (the "Advisory Agreement"), Keystone manages the investment and
reinvestment of the Fund's assets, supervises the operation of the Fund, and
provides all necessary office space, facilities, and equipment.
 
       The Fund pays Keystone a fee for its services at the annual rate of 0.30%
of the average daily net asset value of shares of the Fund. A pro-rata portion
of the fee is payable in arrears at the end of each day or calender month as
Keystone may, from time to time, specify to the Fund.
 
   
       The Advisory Agreement continues in effect for two years from its
effective date and, thereafter, from year to year only so long as such
continuance is specifically approved at least annually by the Board of Trustees
or by the vote of shareholders of the Fund. In addition, the terms and annual
continuance of the Advisory Agreement must be approved by the vote of a majority
of the Independent Trustees (Trustees who are not interested persons of the
Fund, as defined in the 1940 Act) cast in person at a meeting called for the
purpose of voting on such approval. The Advisory Agreement may be terminated,
without penalty, on 60 days' written notice by the Fund or
    
 
                                       9                                  
 
<PAGE>
   
Keystone or may be terminated by a vote of shareholders of the Fund. The
Advisory Agreement will terminate automatically upon its "assignment," as
defined in the 1940 Act.
    
 
PRINCIPAL UNDERWRITER
 
   
       Evergreen Keystone Distributor, Inc. ("EKD"), a subsidiary of The BISYS
Group, Inc., which is not affiliated with First Union, is now the Fund's
principal underwriter. EKD replaced Fiduciary Investment Company ("FICO") as the
Fund's principal underwriter. FICO may no longer act as principal underwriter of
the Fund due to regulatory restrictions imposed by the Glass-Steagall Act upon
national banks, such as FUNB and their affiliates, that prohibit such entities
from acting as the underwriters or distributors of mutual fund shares. EKD is
located at 125 W. 55th Street, New York, New York 10019.
    
 
SUB-ADMINISTRATOR
 
   
       BISYS Fund Services ("BISYS"), an affiliate of EKD, distributor for the
Fund, serves as sub-administrator to the Fund. For its services, BISYS is
entitled to receive a fee from Keystone calculated on the aggregate average
daily net assets of the Fund at a rate based on the total assets of all mutual
funds for which FUNB affiliates serve as investment adviser. The
sub-administrator fee is calculated in accordance with the following schedule:
    
 
   
<TABLE>
<CAPTION>
                                  AGGREGATE AVERAGE DAILY NET ASSETS OF FUNDS
                                           WHICH ANY AFFILIATE OF FUNB SERVES
SUB-ADMINISTRATOR                   AS INVESTMENT ADVISER AND FOR WHICH BISYS
FEE                                               SERVES AS SUB-ADMINISTRATOR
<S>                          <C>
0.0100%                                               on the first $7 billion
0.0075%                                                on the next $3 billion
0.0050%                                               on the next $15 billion
0.0040%                                    on assets in excess of $25 billion
</TABLE>
    
 
   
       The total assets of the mutual funds for which FUNB affiliates also serve
as investment advisers were approximately $29.2 billion as of February 28, 1997.
    
 
   
PORTFOLIO MANAGER
    
 
   
       Christopher P. Conkey and Gary E. Pzegeo are co-portfolio managers of the
Fund. Mr. Conkey has been the Fund's portfolio manager since 1991. He is a
Keystone Senior Vice President and Chief Investment Officer for Fixed Income. He
is also Group Leader for the high grade fixed income area. Mr. Conkey joined
Keystone as a fixed income portfolio manager in 1988. Gary E. Pzegeo has been a
Keystone Vice President and Portfolio Manager since 1997 and has been
co-portfolio manager of the Fund since April, 1997. Mr. Pzegeo has been an
investment professional at Keystone since 1990.
    
 
FUND EXPENSES
 
   
       Pursuant to the Advisory Agreement, Keystone has agreed to pay certain of
the Fund's expenses, including expenses of the Fund's transfer agent, custodian
and independent auditors; fees payable to government agencies, including
registration and qualification fees of the Fund and its shares under federal and
state securities laws; expenses of preparing, printing and mailing Fund
prospectuses, notices, reports and proxy material; and expenses of shareholders'
and Trustees' meetings. In addition to the investment advisory and management
fee discussed above, the principal expenses that the Fund is expected to pay
include expenses of its Independent Trustees; brokerage commissions, interest
charges and taxes; legal fees and certain extraordinary expenses. Each class
will pay all of the expenses attributable to it. Such expenses are currently
limited to Distribution Plan expenses.
    
 
   
       During the fiscal period ended February 28, 1997, Keystone voluntarily
limited the expenses of the Fund's Institutional Service and Institutional
shares to .55% and .30%, respectively, of average net class assets annually.
Keystone reserves the right at any time, however, to make a redetermination of
whether to continue these expense limits and, if so, at what rates. For the
fiscal period ended February 28, 1997, the Fund paid or accrued to Keystone
investment management and advisory services fees of $101,412 (0.30% of the
Fund's average net assets).
    
 
                                       10                                 
 
<PAGE>
   
       For the fiscal period ended February 28, 1997, the Fund paid 0.55% and
0.30% of the average annual net assets of the Institutional Service and
Institutional shares, respectively, in expenses.
    
 
SECURITIES TRANSACTIONS
 
   
       Under policies established by the Board of Trustees, Keystone selects
broker-dealers to execute transactions subject to the receipt of best execution.
When selecting broker-dealers to execute portfolio transactions for the Fund,
Keystone may consider the number of shares of the Fund sold by the
broker-dealer. In addition, broker-dealers executing portfolio transactions,
from time to time, may be affiliated with the Fund, Keystone, EKD or their
affiliates.
    
 
       The Fund may pay higher commissions to broker-dealers that provide
research services. Keystone may use these services in advising the Fund as well
as in advising its other clients.
 
PORTFOLIO TURNOVER
 
   
       The Fund's portfolio turnover rates for the fiscal period ended February
28, 1997 and for the fiscal year ended September 30, 1996 were 44% and 85%,
respectively.
    
 
   
CODE OF ETHICS
    
 
   
       The Fund has adopted a Code of Ethics incorporating policies on personal
securities trading as recommended by the Investment Company Institute.
    
 
DISTRIBUTION PLAN
 
   
       The Fund bears some of the costs of selling its Institutional Service
shares under a Distribution Plan adopted with respect to its Institutional
Service shares ("Institutional Service shares Distribution Plan") pursuant to
Rule 12b-1 under the 1940 Act. Payments under the Institutional Service shares
Distribution Plan are limited to up to 0.35% annually of the average daily net
asset value of Institutional Service shares.
    
 
   
       The National Association of Securities Dealers, Inc. (the "NASD") limits
the amount that the Fund may pay annually in distribution costs for the sale of
its shares and shareholder service fees. The NASD currently limits annual
expenditures to 1% of the aggregate average daily net asset value of its shares,
of which 0.75% may be used to pay such distribution costs and 0.25% may be used
to pay shareholder service fees. The NASD also limits the aggregate amount that
the Fund may pay for such distribution costs to 6.25% of gross share sales since
the inception of the 12b-1 Distribution Plan, plus interest at the prime rate
plus 1% on such amounts remaining unpaid from time to time.
    
 
   
       The Institutional Service shares Distribution Plan may be terminated at
any time by vote of the Independent Trustees or by vote of a majority of the
outstanding Institutional Service shares.
    
 
   
       Payments pursuant to the Institutional Service shares Distribution Plan
are included in the operating expenses of that class.
    
 
HOW TO BUY SHARES
 
   
       Shares of the Fund are sold through EKD. Shares are sold without a sales
charge at the public offering price, which equals the net asset value per share
next computed after the Fund receives the purchase order on each day on which
the Exchange is open for business.
    
 
       Shares are held in "open accounts," I.E., they are credited to the
shareholder's account on the Fund's books. No certificates are issued. All
orders for the purchase of shares are subject to acceptance by the Fund, which
has the right to reject any order.
 
       Shares become entitled to income distributions declared on the first
business day following receipt by the Fund's transfer agent of payment for the
shares.
 
                                       11                                 
 
<PAGE>
OPENING AN ACCOUNT
 
       First, telephone Evergreen Keystone Service Company (formerly Keystone
Investor Resource Center, Inc.) ("EKSC"), the Fund's transfer agent and dividend
disbursing agent, toll free at 1-800-633-2700 to open an account and obtain an
account or wire identification number. EKSC, a wholly-owned subsidiary of
Keystone, is located at 200 Berkeley Street, Boston, Massachusetts 02116-5034.
 
       Second, arrange with your bank to wire federal funds to EKSC's agent at
the following address (please include your account number)
 
       State Street Bank and Trust Company
       Boston, Massachusetts
       ABA 011000028 Attn: Mutual Fund Division
       For incoming wire A/C 0127-654-2
       For credit to KIARF
       Client Name and/or Account Number:
 
       Third, complete and sign the Account Application and mail it to:
 
       Evergreen Keystone Service Company
       P.O. Box 2121
       Boston, Massachusetts 02106-2121
 
       If appropriate, EKSC may require additional documentation or verification
of authority.
 
       Information on how to wire federal funds is available at any national
bank or any state bank that is a member of the Federal Reserve System. The bank
may charge for these services. Presently, there is no fee for receipt by EKSC of
federal funds wired, but the right to charge for this service is reserved.
 
ALTERNATIVE SALES OPTIONS
 
       The Fund offers two classes of shares.
 
   
INSTITUTIONAL SERVICE SHARES
    
 
   
       Institutional Service shares are sold without a sales charge at the time
of purchase and are not subject to a sales charge when they are redeemed.
Institutional Service shares are available to any investor making a minimum
initial purchase aggregating $1,000,000 or more which may be waived in certain
situations. There is no minimum amount required for subsequent purchases.
    
 
   
       The Fund has adopted the Institutional Service shares Distribution Plan,
which provides for payments at an annual rate of up to 0.35% of the average
daily net asset value of Institutional Service shares, to pay expenses of the
distribution of Institutional Service shares. Payments are expected to be made
at a rate of 0.25% of the average daily net assets of Institutional Service
shares. Amounts paid by the Fund under the Institutional Service shares
Distribution Plan are generally used to pay the Principal Underwriter and
others' service fees. The Fund may also make payments to the Principal
Underwriter, broker-dealers and others for activities that are primarily
intended to result in sales of Institutional Service shares, including, but not
limited to, mail promotions and advertising, including the use of member name
and address lists of affinity groups, professional associations, trade groups,
industry associations or other associations (E.G., credit union trade groups),
for which use royalty payments may be made. As a result, income distributions
paid by the Fund with respect to Institutional Service shares will generally be
less than those paid with respect to Institutional shares. See "Distribution
Plan" above.
    
 
   
INSTITUTIONAL SHARES
    
 
   
       Institutional shares are sold without a sales charge at the time of
purchase and are not subject to a sales charge when they are redeemed.
Institutional shares are available to the following investors making a minimum
initial purchase aggregating $1,000,000 or more, which may be waived in certain
situations: officers, directors or trustees, and employees of the Fund,
Keystone, EKD, or any of their affiliates, and members of the immediate
    
 
                                       12                                 
 
<PAGE>
   
families of such persons, or any trust, pension, profit-sharing, or other
retirement or benefit plan for the benefit of such persons; present shareholders
of Institutional shares of the Fund; and existing investment advisory clients of
Keystone, EKD, or any of their affiliates. There is no minimum amount required
for subsequent purchases.
    
 
ARRANGEMENTS WITH BROKER-DEALERS AND OTHERS
 
   
       From time to time, EKD may provide promotional incentives to certain
broker-dealers whose representatives have sold or are expected to sell
significant amounts of the Fund. In addition, from time to time, broker-dealers
may receive additional cash payments. EKD may provide written information to
broker-dealers with whom it has dealer agreements that relates to sales
incentive campaigns conducted by such broker-dealers for their representatives
as well as financial assistance in connection with pre-approved seminars,
conferences and advertising. No such programs or additional compensation will be
offered to the extent they are prohibited by the laws of any state or any
self-regulatory agency, such as the NASD.
    
 
   
       EKD may, at its own expense, pay concessions in addition to those
described above to broker-dealers including, from time to time, First Union
Brokerage Services, Inc., an affiliate of Keystone, that satisfy certain
criteria established from time to time by EKD. These conditions relate to
increasing sales of shares of the Evergreen Keystone funds over specified
periods and certain other factors. Such payments may, depending on the
broker-dealer's satisfaction of the required conditions, be periodic and may be
up to 1.00% of the value of shares sold by such broker-dealer.
    
 
   
       EKD may also pay a transaction fee (up to the level of the payments
allowed to broker-dealers for the sale of such shares, as described above) to
banks and other financial services firms that facilitate transactions in shares
of the Fund.
    
 
   
       The Glass-Steagall Act and other banking laws and regulations presently
prohibit member banks of the Federal Reserve System ("Member Banks") or their
non-bank affiliates from sponsoring, organizing, controlling, or distributing
the shares of registered open-end investment companies such as the Fund.
However, under the Glass-Steagall Act and such other laws and regulations, a
Member Bank or an affiliate thereof may act as investment adviser, transfer
agent or custodian to a registered open-end investment company and may also act
as agent in connection with the purchase of shares of such an investment company
upon the order of its customer. Keystone and its affiliates, since they are
direct or indirect subsidiaries of FUNB, are subject to and in compliance with
the aforementioned laws and regulations. In the event the Glass-Steagall Act is
deemed to prohibit depository institutions from accepting certain payments from
the Fund, or should Congress relax current restrictions on depository
institutions, the Board of Trustees will consider what action, if any, is
appropriate.
    
 
       In addition, state securities laws on this issue may differ from the
interpretations of federal law expressed herein, and banks and financial
institutions may be required to register as broker-dealers pursuant to state
law.
 
HOW TO REDEEM SHARES
 
       You may redeem shares of the Fund at net asset value by mail or by using
the telephone or telecommunication redemption privilege.
 
MAIL REDEMPTIONS
 
       Shares may be redeemed on each day on which the Exchange is open by
mailing a written request to EKSC at the following address:
 
       Evergreen Keystone Service Company
       P.O. Box 2121
       Boston, Massachusetts 02106-2121
 
   
       The signatures on the written request must be PROPERLY GUARANTEED by a
U.S. stock exchange member, a bank or other persons eligible to guarantee
signatures under the Securities Exchange Act of 1934 and EKSC's policies when
the circumstances of such redemptions indicate that guaranteed signatures are
appropriate, in the judgment of the Fund or EKSC, for the protection of the
Fund, its shareholders and EKSC. The Fund and EKSC may waive this requirement or
may require additional documentation in certain cases.
    
 
                                       13                                 
 
<PAGE>
TELEPHONE OR TELECOMMUNICATION REDEMPTIONS
 
   
       Under ordinary circumstances, you may redeem shares on each day on which
the Exchange is open for business by telephone (toll free 1-800-633-2700),
mailgram, fax or other request not bearing a signature and a signature guarantee
to EKSC.
    
 
       Shareholders must complete and sign the Account Application, including
the Redemption Authorization Section.
 
       Redemption proceeds will be wired in federal funds only to the commercial
bank (and account number) designated by the shareholder on the Account
Application. If EKSC deems it appropriate, additional documentation may be
required. Although at present EKSC pays the wire costs involved, it reserves the
right at any time to require the shareholder to pay such costs.
 
   
       Except as otherwise noted, neither the Fund, EKSC nor EKD assumes
responsibility for the authenticity of any instructions received by any of them
from a shareholder by telephone. EKSC will employ reasonable procedures to
confirm that instructions received over the telephone are genuine. Neither the
Fund, EKSC nor EKD will be liable when following instructions received by
telephone that EKSC reasonably believes to be genuine.
    
 
       Any change in the bank account designated to receive redemption proceeds
must be made in another Account Application signed by the shareholder (WITH
SIGNATURES PROPERLY GUARANTEED IN THE MANNER DESCRIBED ABOVE) and delivered to
EKSC at the address above.
 
       If a shareholder redeems all the shares in an account, the shareholder
will receive, in addition to the value thereof, all declared but unpaid
distributions thereon.
 
REDEMPTION OF SHARES IN GENERAL
 
   
       The Fund reserves the right, at any time, to terminate, suspend or change
the terms of any redemption method described in this prospectus, except
redemption by mail, and to impose fees.
    
 
       The Fund computes the amount due you at the close of the Exchange at the
end of the day on which it has received all proper documentation from you.
Payment will be made within seven days after a properly completed redemption
request is received.
 
   
       The Fund may temporarily suspend the right to redeem its shares or may
extend the date for payment when (1) the Exchange is closed, other than
customary weekend and holiday closings; (2) trading on the Exchange is
restricted; (3) an emergency exists and the Fund cannot dispose of its
investments or fairly determine their value; or (4) the Securities and Exchange
Commission so orders.
    
 
SHAREHOLDER SERVICES
 
   
       Details on all shareholder services may be ob- tained from EKSC by
calling toll free 1-800-633-2700 or from EKD by writing to the Evergreen
Keystone Distributor, Inc., 125 W. 55th Street, New York, New York 10019.
    
 
SUBACCOUNTS
 
       Special processing has been arranged with EKSC for banks and other
institutions that wish to open multiple accounts (a master account and
subaccounts). An investor wishing to avail himself or herself of EKSC's
subaccounting facilities will be required to enter into a separate agreement,
with the charges to be determined on the basis of the level of services to be
rendered. Subaccounts may be opened with the initial investment or at a later
date and may be established by an investor with registration either by name or
by number.
 
                                       14                                 
 
<PAGE>
PERFORMANCE DATA
 
       From time to time, the Fund may advertise "total return" and "current
yield." ALL DATA IS BASED ON HISTORICAL RESULTS. PAST PERFORMANCE SHOULD NOT BE
CONSIDERED REPRESENTATIVE OF RESULTS FOR ANY FUTURE PERIOD OF TIME. Total return
and current yield are computed separately for each class of shares of the Fund.
Total return refers to the Fund's average annual compounded rates of return over
specified periods determined by comparing the initial amount invested in a
particular class to the ending redeemable value of that amount. The resulting
equation assumes reinvestment of all dividends and distributions and deduction
of all recurring charges, if any, applicable to all shareholder accounts.
 
       Current yield quotations represent the yield on an investment for a
stated 30-day period computed by dividing net investment income earned per share
during the base period by the maximum offering price per share on the last day
of the base period.
 
FUND SHARES
 
   
       The Fund currently issues Institutional Service and Institutional shares,
which participate in dividends and distributions and have equal voting,
liquidation and other rights except that (1) expenses related to the
distribution of each class of shares or other expenses that the Board of
Trustees may designate as class expenses, from time to time, are borne solely by
each class; (2) each class of shares has exclusive voting rights with respect to
its Distribution Plan, if any; and (3) each class has a different designation.
When issued and paid for, the shares will be fully paid and nonassessable by the
Fund. Shares will have no preference, conversion, exchange or preemptive rights.
Shares are transferable, redeemable and freely assignable as collateral. There
are no sinking fund provisions. The Fund is authorized to issue additional
classes or series of shares.
    
 
       Shareholders are entitled to one vote for each full share owned and
fractional votes for fractional shares on all matters subject to Fund vote.
Shares of the Fund vote together except when required by law to vote separately
by series or class. The Fund does not have annual meetings. The Fund will have
special meetings, from time to time, as required under its Declaration of Trust
and under the 1940 Act. As provided in the Declaration of Trust of the Fund,
shareholders have the right to remove Trustees by an affirmative vote of
two-thirds of the outstanding shares. A special meeting of the shareholders will
be held when holders of 10% of the outstanding shares request a meeting. As
prescribed by Section 16(c) of the 1940 Act, shareholders may be eligible for
shareholder communication assistance in connection with the special meeting.
 
       Under Massachusetts law, it is possible that a Fund shareholder may be
held personally liable for the Fund's obligations. The Fund's Declaration of
Trust provides, however, that shareholders shall not be subject to any personal
liability for the Fund's obligations and provides indemnification from Fund
assets for any shareholder held personally liable for the Fund's obligations.
Disclaimers of such liability are included in each Fund agreement.
 
ADDITIONAL INFORMATION
 
       Except as otherwise stated in this prospectus or required by law, the
Fund reserves the right to change the terms of the offer stated in this
prospectus without shareholder approval, including the right to impose or change
fees for services provided.
 
                                       15                                 
 
<PAGE>
                       ADDITIONAL INVESTMENT INFORMATION
 
       The Fund may engage in the following investment practices to the extent
described in the prospectus and the statement of additional information.
 
REPURCHASE AGREEMENTS
 
       The Fund may enter into repurchase agreements with member banks of the
Federal Reserve System having at least $1 billion in assets, primary dealers in
U.S. government securities or other financial institutions believed by Keystone
to be creditworthy. Such persons must be registered as U.S. government
securities dealers with an appropriate regulatory organization. Under such
agreements, the bank, primary dealer or other financial institution agrees upon
entering into the contract to repurchase the security at a mutually agreed upon
date and price, thereby determining the yield during the term of the agreement.
This results in a fixed rate of return insulated from market fluctuations during
such period. Under a repurchase agreement, the seller must maintain the value of
the securities subject to the agreement at not less than the repurchase price,
such value being determined on a daily basis by marking the underlying
securities to their market value. Although the securities subject to the
repurchase agreement might bear maturities exceeding a year, the Fund only
intends to enter into repurchase agreements that provide for settlement within a
year and usually within seven days. Securities subject to repurchase agreements
will be held by the Fund's custodian or in the Federal Reserve book entry
system. The Fund does not bear the risk of a decline in the value of the
underlying security unless the seller defaults under its repurchase obligation.
In the event of a bankruptcy or other default of a seller of a repurchase
agreement, the Fund could experience both delays in liquidating the underlying
securities and losses including (1) possible declines in the value of the
underlying securities during the period while the Fund seeks to enforce its
rights thereto; (2) possible subnormal levels of income and lack of access to
income during this period; and (3) expenses of enforcing its rights. The Board
of Trustees of the Fund has established procedures to evaluate the
creditworthiness of each party with whom the Fund enters into repurchase
agreements by setting guidelines and standards of review for Keystone and
monitoring Keystone's actions with regard to repurchase agreements.
 
REVERSE REPURCHASE AGREEMENTS
 
       Under a reverse repurchase agreement, the Fund would sell securities and
agree to repurchase them at a mutually agreed upon date and price. The Fund
intends to enter into reverse repurchase agreements to avoid otherwise having to
sell securities during unfavorable market conditions in order to meet
redemptions. At the time the Fund enters into a reverse repurchase agreement, it
will establish a segregated account with the Fund's custodian containing liquid
assets such as U.S. government securities or other high grade debt securities
having a value not less than the repurchase price (including accrued interest)
and will subsequently monitor the account to ensure such value is maintained.
Reverse repurchase agreements involve the risk that the market value of the
securities the Fund is obligated to repurchase may decline below the repurchase
price.
 
COLLATERALIZED MORTGAGE OBLIGATIONS
 
       The Fund will invest only in CMOs issued or guaranteed by the U.S.
government, its agencies or instrumentalities. The Fund intends to invest only
in CMOs that, in Keystone's opinion, are suitable in light of the Fund's
investment objective and policies. The Fund may purchase any class of CMO other
than the residual (final) class or a class whose average life would extend or is
shortened by more than 6 years under modeling scenarios where mortgage
commitment rates immediately rise or fall 300 basis points. CMOs are debt
obligations collateralized by Mortgage Securities and may be issued by and
guaranteed as to principal and interest by the U.S. government, its agencies or
instrumentalities or by private originators of, or investors in, mortgage loans,
including savings and loan associations, mortgage banks, commercial banks,
investment banks and special purpose subsidiaries of the foregoing. The
principal governmental issuer of CMOs is FNMA. In addition, FHLMC issues a
significant number of CMOs. The secondary market for CMOs is actively traded.
 
       CMOs are structured by redirecting the total payment of principal and
interest on the underlying Mortgage Securities used as collateral to create
classes with different interest rates, maturities and payment schedules.
 
                                       i                                 
 
<PAGE>
Instead of interest and principal payments on the underlying Mortgage Securities
being passed through or paid pro-rata to all holders of interests in the
underlying Mortgage Securities, each class of a CMO is paid from and secured by
a separate priority payment of the cash flow generated by the pledged Mortgage
Securities.
 
       Most CMO issues have at least four classes. Classes with earlier
maturities receive priority on payments to assure the early maturity. After the
first class is redeemed, excess cash flow not necessary to pay interest on the
remaining classes is directed to the repayment of the next maturing class until
that class is fully redeemed. This process continues until all classes of the
CMO issue have been paid in full. Among the CMO classes available are floating
(adjustable) rate classes, which have characteristics similar to ARMS and
inverse floating rate classes whose coupons vary inversely with the rate of some
market index.
 
                                       ii                                
 
<PAGE>
                       ADDITIONAL INVESTMENT INFORMATION
 
       The Fund may engage in the following investment practices to the extent
described in the prospectus and the statement of additional information.
 
REPURCHASE AGREEMENTS
 
       The Fund may enter into repurchase agreements with member banks of the
Federal Reserve System having at least $1 billion in assets, primary dealers in
U.S. government securities or other financial institutions believed by Keystone
to be creditworthy. Such persons must be registered as U.S. government
securities dealers with an appropriate regulatory organization. Under such
agreements, the bank, primary dealer or other financial institution agrees upon
entering into the contract to repurchase the security at a mutually agreed upon
date and price, thereby determining the yield during the term of the agreement.
This results in a fixed rate of return insulated from market fluctuations during
such period. Under a repurchase agreement, the seller must maintain the value of
the securities subject to the agreement at not less than the repurchase price,
such value being determined on a daily basis by marking the underlying
securities to their market value. Although the securities subject to the
repurchase agreement might bear maturities exceeding a year, the Fund only
intends to enter into repurchase agreements that provide for settlement within a
year and usually within seven days. Securities subject to repurchase agreements
will be held by the Fund's custodian or in the Federal Reserve book entry
system. The Fund does not bear the risk of a decline in the value of the
underlying security unless the seller defaults under its repurchase obligation.
In the event of a bankruptcy or other default of a seller of a repurchase
agreement, the Fund could experience both delays in liquidating the underlying
securities and losses including (1) possible declines in the value of the
underlying securities during the period while the Fund seeks to enforce its
rights thereto; (2) possible subnormal levels of income and lack of access to
income during this period; and (3) expenses of enforcing its rights. The Board
of Trustees of the Fund has established procedures to evaluate the
creditworthiness of each party with whom the Fund enters into repurchase
agreements by setting guidelines and standards of review for Keystone and
monitoring Keystone's actions with regard to repurchase agreements.
 
REVERSE REPURCHASE AGREEMENTS
 
       Under a reverse repurchase agreement, the Fund would sell securities and
agree to repurchase them at a mutually agreed upon date and price. The Fund
intends to enter into reverse repurchase agreements to avoid otherwise having to
sell securities during unfavorable market conditions in order to meet
redemptions. At the time the Fund enters into a reverse repurchase agreement, it
will establish a segregated account with the Fund's custodian containing liquid
assets such as U.S. government securities or other high grade debt securities
having a value not less than the repurchase price (including accrued interest)
and will subsequently monitor the account to ensure such value is maintained.
Reverse repurchase agreements involve the risk that the market value of the
securities the Fund is obligated to repurchase may decline below the repurchase
price.
 
COLLATERALIZED MORTGAGE OBLIGATIONS
 
       The Fund will invest only in CMOs issued or guaranteed by the U.S.
government, its agencies or instrumentalities. The Fund intends to invest only
in CMOs that, in Keystone's opinion, are suitable in light of the Fund's
investment objective and policies. The Fund may purchase any class of CMO other
than the residual (final) class or a class whose average life would extend or is
shortened by more than 6 years under modeling scenarios where mortgage
commitment rates immediately rise or fall 300 basis points. CMOs are debt
obligations collateralized by Mortgage Securities and may be issued by and
guaranteed as to principal and interest by the U.S. government, its agencies or
instrumentalities or by private originators of, or investors in, mortgage loans,
including savings and loan associations, mortgage banks, commercial banks,
investment banks and special purpose subsidiaries of the foregoing. The
principal governmental issuer of CMOs is FNMA. In addition, FHLMC issues a
significant number of CMOs. The secondary market for CMOs is actively traded.
 
       CMOs are structured by redirecting the total payment of principal and
interest on the underlying Mortgage Securities used as collateral to create
classes with different interest rates, maturities and payment schedules.
 
                                       i                                 
 
<PAGE>
Instead of interest and principal payments on the underlying Mortgage Securities
being passed through or paid pro-rata to all holders of interests in the
underlying Mortgage Securities, each class of a CMO is paid from and secured by
a separate priority payment of the cash flow generated by the pledged Mortgage
Securities.
 
       Most CMO issues have at least four classes. Classes with earlier
maturities receive priority on payments to assure the early maturity. After the
first class is redeemed, excess cash flow not necessary to pay interest on the
remaining classes is directed to the repayment of the next maturing class until
that class is fully redeemed. This process continues until all classes of the
CMO issue have been paid in full. Among the CMO classes available are floating
(adjustable) rate classes, which have characteristics similar to ARMS and
inverse floating rate classes whose coupons vary inversely with the rate of some
market index.
 
                                       ii                                
 
<PAGE>
                                                                     APPLICATION
 
              KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND (KIARF)
A.  SHAREHOLDER REGISTRATION
Shareholder Name
 
Attention of                                         Tax ID Number
Street Address
 
City                                                  State             Zip
Telephone Number                                     Fax Number
 
B.  DISTRIBUTIONS. CHOOSE ONE. (If no choice is indicated, distributions will be
    reinvested.)
 
h Reinvest all income dividends and capital gains distributions in additional
  shares.
 
h Pay all income dividends and capital gains distributions in cash.
 
   
C.  ADDITIONAL CONFIRMATION STATEMENTS (OPTIONAL):
    
Name
Address
 
Telephone Number
 
                                                                         
 
<PAGE>
  KIARF APPLICATION                                                          (2)
 
Name
Address
 
Telephone Number
 
D.  PURCHASES AND REDEMPTIONS -- PERSONNEL AUTHORIZED TO PURCHASE OR REDEEM
NameSHARES OF THE FUND:                              Telephone Number
Title
Name                                                 Telephone Number
Title
 
Please furnish a resolution of the Board of Directors/Trustees certified by the
Secretary identifying personnel authorized to purchase or redeem shares of the
Fund. Please also furnish original signatures of the authorized persons.
 
E.  FUND PURCHASES
 
Shares of the Fund may be purchased by check or by wiring federal funds.
 
BY CHECK:
Mail a check made payable to the Fund at the address below:
 
   
    Evergreen Keystone Service Company
    P.O. Box 2121
    Boston, MA 02106-2121
    
 
BY WIRE:
Federal Reserve wiring instructions to Keystone's custodian bank are provided
below:
 
    State Street Bank & Company
    Boston, MA
    ABA # 011000028
    Attn: Mutual Fund Division
 
    For Incoming Wire A/C 0127-654-2
    For credit to KISCGF
    Client Name
    Account Number (if known)
 
                                                                         
 
<PAGE>
  KIARF APPLICATION                                                          (3)
 
F.  FUND REDEMPTIONS
 
Fund shares may be redeemed and proceeds sent via the Federal Reserve wire
system to the shareholder's bank and account number using the wire instructions
provided below:
Bank Name
Account Number
Wiring Instructions
 
REDEMPTION AUTHORIZATION
 
   
The undersigned hereby authorizes Evergreen Keystone Service Company ("EKSC") an
affiliate of First Union Keystone, Inc., ("First Union Keystone") acting as the
undersigned's attorney-in-fact, to surrender for redemption any or all shares of
Keystone Institutional Small Capitalization Growth Fund ("KISCGF") held for the
undersigned's account pursuant to any telephone, mailgram, fax, or other request
not bearing a signature and a signature guarantee, whether from this undersigned
or from any other authorized person requesting redemption. The proceeds of any
redemption will be sent only to the client's bank, using the wire instructions
specified above.
    
 
   
The undersigned and the undersigned's assigns and successors release EKSC, First
Union Keystone, and their affiliates, and their respective directors/trustees,
officers and employees from any and all claims, expenses or liabilities for
acting under this Authorization.
    
 
   
The undersigned also agrees that this Authorization will remain in effect until
Keystone receives notice of termination or notice of change hereof on an
authorization form supplied by EKSC or First Union Keystone, such notice in
either case signed by the undersigned and with such signature guaranteed by a
commercial bank or trust company or a member firm of a major stock exchange. It
is also agreed that EKSC may cease to act as such attorney-in-fact upon ten (10)
days' written notice to the undersigned at the address contained herein or at
any subsequent address shown on EKSC records.
    
Signature                                          Date
Signature                                          Date
 
                                                                         
 
<PAGE>
  KIARF APPLICATION                                                          (4)
 
G.  INSTITUTIONAL STATUS
 
The undersigned represent that the investor is an "institution" for purposes of
the Blue Sky Laws of the state of its residence and place of business.
 
The undersigned represent that they have been duly authorized to sign this
application, acknowledge having received and read KISCGF's current prospectus
and agree to the terms of such prospectus.
Account Name                                       Date
By                                       Title
 
RETURN THIS APPLICATION TO:
 
   
    EVERGREEN KEYSTONE SERVICE COMPANY
    P.O. BOX 2121
    BOSTON, MA 02106-2121
    
 
H.  ADDITIONAL INFORMATION
 
   
Sales Information Contacts:
    
 
   
<TABLE>
    <S>                                  <C>
    Toll-free Number
    1-888-216-2180 (Charlotte)
    1-800-633-4200 (Boston)
      Paul E. Berg, ext. 3621
      Sales Assistance, ext. 3612
</TABLE>
    
 
   
EVERGREEN KEYSTONE SERVICE COMPANY -- Transfer Agent and Client Services:
    
 
   
<TABLE>
    <S>                                  <C>
    Toll-free Number
    1-800-633-2700
 
    EKSC Mailing Address                 EKSC Street Address
    P.O. Box 2121                        200 Berkeley Street
    Boston, MA 02106-2121                Boston, MA 02116-5034
</TABLE>
    
 
                                                                         
 
<PAGE>
   
  INVESTMENT ADVISER
  Keystone Investment Management Company, 200 Berkeley Street, Boston,
  Massachusetts 02116-5034
    
 
  CUSTODIAN
  State Street Bank and Trust Company, P.O. Box 9021, Boston, Massachusetts
  02205-9827
 
  TRANSFER AGENT
  Evergreen Keystone Service Company, P.O. Box 2121, Boston, Massachusetts
  02106-2121
 
  LEGAL COUNSEL
  Sullivan & Worcester LLP, 1025 Connecticut Avenue, N.W., Washington, D.C.
  20036
 
   
  INDEPENDENT AUDITORS
  KPMG Peat Marwick LLP, 99 High Street, Boston, Massachusetts 02110
    
 
   
  DISTRIBUTOR
    
 
   
  Evergreen Keystone Distributor, Inc., 120 Clove Road, Little Falls, New Jersey
 
  49156                                                              
    
 





<PAGE>

                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND

                                     PART B

                       STATEMENT OF ADDITIONAL INFORMATION

<PAGE>


                       STATEMENT OF ADDITIONAL INFORMATION
                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND

                       STATEMENT OF ADDITIONAL INFORMATION
   
                                  July 1, 1997

     This statement of additional  information is not a prospectus,  but relates
to,  and  should  be  read in  conjunction  with,  the  prospectus  of  Keystone
Institutional  Adjustable  Rate Fund (the "Fund")  dated July 1, 1997. A copy of
the prospectus may be obtained from the Fund's principal underwriter,  Evergreen
Keystone Distributor, Inc. See "Service Providers" below.


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


                                TABLE OF CONTENTS

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



The Fund ...........................................................2
Service Providers. . . . .  . . . . . . . . . . . . . . . . . . . . 2
Investment Restrictions.............................................4
Distributions and Taxes.............................................5
Valuation of Securities.............................................6
Brokerage...........................................................6
Distribution Plan...................................................8
Trustees and Officers...............................................9
Investment Adviser.................................................12
Principal Underwriter..............................................14
Sub-administrator..................................................15
Declaration of Trust...............................................16
Expenses...........................................................18
Financial Statements...............................................18
Standardized Total Return and Yield Quotations.....................19
Additional Information.............................................20
Appendix...........................................................A-1

    




                                                    1

<PAGE>









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


                                    THE FUND

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



         The Fund is an open-end,  diversified  management  investment  company,
commonly known as a mutual fund. The Fund was formed as a Massachusetts business
trust on June 19, 1991.

         Certain information about the Fund is contained in its prospectus. This
statement of additional  information  provides additional  information about the
Fund.


   
                                SERVICE PROVIDERS

<TABLE>
<S>                                            <C>
Service                                        Provider
- -----------------------------------------      ------------------------------------------------------
Investment adviser (referred to                Keystone Investment Management Company, 200 Berkeley
in this SAI as "Keystone")                     Street, Boston, Massachusetts 02116. (Keystone is a
                                               wholly-owned subsidiary of First Union Keystone, Inc.,
                                               (formerly Keystone Investments, Inc.) ("First Union
                                               Keystone") also located at 200 Berkeley Street, Boston,
                                               Massachusetts 02116.)

Principal underwriter ( referred               Evergreen Keystone Distributor, Inc., 125 W. 55th Street,
to in this SAI as "EKD")                       New York, New York 10019.

Marketing services agent and                   Evergreen Keystone Investment Services, Inc. (formerly
predecessor to EKD (referred to                Keystone Investment Distributors Company), 200 Berkeley
in this SAI as "EKIS")                         Street, Boston, Massachusetts 02116.

Sub-administrator (referred to in              BISYS Fund Services, Inc., 125 W. 55th Street, New York,
this SAI as "BISYS")                           New York 10019.

Transfer and dividend                          Evergreen Keystone Service Company, (formerly Keystone Investor
disbursing agent (referred to in               Resource Center, Inc.) 200 Berkeley Street, Boston,
this SAI as "EKSC")                            Massachusetts 02116. (EKSC is a wholly-owned subsidiary 
                                               of Keystone.)

Independent auditors                           KPMG Peat Marwick LLP, 99 High Street, Boston,
                                               Massachusetts 02110, Certified Public Accountants.

Custodian                                      State Street Bank and Trust Company, 225 Franklin
                                               Street, Boston, Massachusetts 02110.

</TABLE>
    
                                                         2

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


                             INVESTMENT RESTRICTIONS

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


         The Fund has adopted the fundamental investment  restrictions set forth
below  which may not be changed  without  the vote of a  majority  of the Fund's
outstanding  shares, as defined in the Investment Company Act of 1940 (the "1940
Act") as the lesser of (1) 67% of the shares  represented  at a meeting at which
more than 50% of the outstanding  shares are represented or (2) more than 50% of
the outstanding  shares (a "1940 Act Majority").  Unless otherwise  stated,  all
references to the assets of the Fund are in terms of current market value.

         The Fund may not do the following:

         (1) with respect to 75% of its total assets, invest more than 5% of the
value of its total assets in the securities of any one issuer;  this  limitation
does not apply to  investments  in  securities  issued or guaranteed by the U.S.
government, its agencies or instrumentalities;

         (2)  invest  more than 5% of its  total  assets  in  securities  of any
company  having a record,  together  with its  predecessors,  of less than three
years of continuous operations;

         (3) pledge more than 15% of its net assets to secure indebtedness;  the
purchase  or sale of  securities  on a when  issued  basis is not deemed to be a
pledge of assets;

         (4) borrow money or enter into reverse  repurchase  agreements,  except
that the Fund may enter into reverse repurchase  agreements or borrow money from
banks for temporary or emergency  purposes in aggregate  amounts up to one-third
of the value of the Fund's net assets; provided that while borrowings from banks
(not  including  reverse  repurchase  agreements)  exceed 5% of the  Fund's  net
assets, any such excess borrowings will be repaid before additional  investments
are made;

         (5)  make  loans,  except  that  the Fund  may  purchase  or hold  debt
securities consistent with its investment  objective,  lend portfolio securities
valued  at not  more  than 15% of its  total  assets  to  brokers,  dealers  and
financial institutions, and enter into repurchase agreements;

         (6) make short sales of securities or maintain a short position, unless
at all  times  when a short  position  is open it owns an equal  amount  of such
securities or of securities which, without payment of any further consideration,
are convertible  into or  exchangeable  for securities of the same issue as, and
equal in amount to, the securities sold short;

         (7) issue senior  securities;  the purchase or sale of  securities on a
when issued basis is not deemed to be the issuance of a senior security;

         (8)  purchase  securities  on margin,  except  that it may obtain  such
short-term  credit as may be necessary  for the clearance of purchases and sales
of securities;

         (9) purchase more than 3% of the total outstanding voting securities of
any one investment  company,  invest more than 5% of its total assets in any one
investment  company or invest  more than 10% of its total  assets in  investment
companies  in general,  except as part of a merger,  consolidation,  purchase of
assets or similar transaction;

         (10)  purchase  or sell  commodities  or  commodity  contracts  or real
estate,  except that it may purchase and sell securities  secured by real estate
and  securities  of  companies  which  invest in real  estate  and may engage in
financial futures contracts and related options transactions; and

         (11) underwrite  securities of other issuers,  except that the Fund may
purchase  securities from the issuer or others and dispose of such securities in
a manner consistent with its investment objective.

         If a  percentage  limit  is  satisfied  at the  time of  investment  or
borrowing,  a later increase or decrease  resulting from a change in asset value
of a security or a decrease in Fund assets is not a violation of the limit.


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


                             DISTRIBUTIONS AND TAXES

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


         The Fund intends to declare  dividends from its net  investment  income
daily and its net capital  gains,  if any, at least  annually.  You will receive
distributions  in shares,  unless you elect,  before the payable date for income
dividends or the record date for capital gains distributions, to receive them as
cash. Unless the Fund receives instructions to the contrary, it will assume that
you wish to receive that distribution and future gains and income  distributions
in shares. Your instructions continue in effect until changed in writing. If you
have not opted to receive  cash,  the Fund will  determine  the number of shares
that you should  receive  based on its net asset  value per share as computed at
the  close  of  business  on the  ex-dividend  date  after  adjustment  for  the
distribution.

         Capital  gains  distributions  that  reduce the net asset value of your
shares  below your cost are,  to the extent of the  reduction,  a return of your
investment, even though they are taxable as described below. Since distributions
of  capital  gains  depend  upon  profits  realized  from the sale of the Fund's
portfolio securities, they may or may not occur.

         Distributions   are  taxable  whether  you  receive  them  in  cash  or
additional  shares.  Long-term  capital gains  distributions are taxable as such
regardless  of how long you have  held the  shares.  If,  however,  you hold the
Fund's  shares  for less than six months  and  redeem  them at a loss,  you will
recognize a long-term  capital loss to the extent of the long-term  capital gain
distribution  received  in  connection  with such  shares.  The Fund  intends to
distribute  only such net capital gains and income as it has  predetermined,  to
the best of its ability,  to be taxable as ordinary income. The Fund distributes
its  net  investment  income  on a  federal  income  tax  basis,  not  based  on
distributable  income as  computed  on our  books.  The Fund does not expect its
dividends to qualify for the corporate dividends received deduction.

         The Fund will advise you  annually as to the federal  income tax status
of your distributions.  These comments relating to the taxation of dividends and
distributions  paid  on the  Fund's  shares  relate  solely  to  federal  income
taxation.  Your  dividends  and  distributions  may also be subject to state and
local taxes.



  

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


                             VALUATION OF SECURITIES

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


         Current  values for the Fund's  portfolio  securities are determined in
the following manner:

         (1)  securities for which market  quotations are readily  available are
valued  at  market  value,  which is  deemed to be the mean of the bid and asked
prices at the time of valuation;

         (2) (a) short-term  investments  that are purchased with  maturities of
sixty  days or less when  purchased  are  valued  at  amortized  cost  (original
purchase cost as adjusted for amortization of premium or accretion of discount),
which, when combined with accrued interest, approximates market;

         (b)  short-term  investments  maturing  in more  than  sixty  days when
purchased  that are held on the  sixtieth  day prior to  maturity  are valued at
amortized  cost (market value on the sixtieth day adjusted for  amortization  of
premium or accretion of discount),  which,  when combined with accrued interest,
approximates market;

         (c) short-term  investments  having maturities of more than sixty days,
for which market quotations are readily available,  are valued at current market
value; and

         (3)  securities,  including  restricted  securities,  for which  market
quotations  are not  readily  available,  and other  assets are valued at prices
deemed in good faith to be fair under procedures established by the Fund's Board
of Trustees.

         The Fund  believes that reliable  market  quotations  are generally not
readily  available  for  purposes of valuing  certain  securities.  As a result,
depending on the particular securities owned by the Fund, it is likely that most
of the  valuations  for such  obligations  will be based  upon  their fair value
determined  under  procedures  that have been approved by the Board of Trustees.
The Board of Trustees has authorized  the use of a pricing  service to determine
the fair value of the Fund's fixed rate mortgage securities.


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


                                    BROKERAGE

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


Selection of Brokers

         In  effecting  transactions  in  portfolio  securities  for  the  Fund,
Keystone  seeks  the best  execution  of orders  at the most  favorable  prices.
Keystone  determines  whether a broker has provided the Fund with best execution
and price in the  execution of a securities  transaction  by  evaluating,  among
other things:

         1.       overall direct net economic result to the Fund;

         2.       the efficiency with which the transaction is effected;

         3.       the broker's ability to effect the transaction where a large
                  block is involved;



                                                         5


         4.       the  broker's  readiness  to  execute  potentially   difficult
                  transactions in the future;

         5.       the financial strength and stability of the broker; and

         6.       the receipt of research services, such as analyses and reports
                  concerning issuers, industries,  securities,  economic factors
                  and trends and other statistical and factual information.

         The Fund's  management  weighs these  considerations in determining the
overall reasonableness of the brokerage commissions paid.

         The Fund  considers  the  receipt of  research  services by the Fund or
Keystone  to be in  addition  to, and not in lieu of, the  services  Keystone is
required to perform under the Advisory  Agreement (as defined  below).  Keystone
believes that it cannot  determine or  practically  allocate the cost,  value or
specific  application of such research  services  between the Fund and its other
clients who may indirectly  benefit from the  availability  of such  information
made  available  as a result  of  transactions  effected  for  Keystone's  other
clients.  The Advisory  Agreement also permits  Keystone to pay higher brokerage
commissions for brokerage and research services in accordance with Section 28(e)
of the  Securities  Exchange Act of 1934. In the event  Keystone  follows such a
practice, it will do so on a basis that is fair and equitable to the Fund.

         Neither   the  Fund  nor   Keystone   intends  on  placing   securities
transactions  with any  particular  broker.  The Fund's  Board of  Trustees  has
determined, however, that the Fund may consider sales of Fund shares as a factor
in the selection of brokers to execute  portfolio  transactions,  subject to the
requirements of best execution described above.

Brokerage Commissions

         The Fund  expects to purchase  and sell its  securities  and  temporary
instruments through principal  transactions.  Bonds and money market instruments
are normally purchased directly from the issuer or from an underwriter or market
maker  for  the  securities.  In  general,  the  Fund  will  not  pay  brokerage
commissions for such  purchases.  Purchases from  underwriters  will include the
underwriting  commission or concession,  and purchases  from dealers  serving as
market makers will include a dealer's  mark-up or reflect a dealer's  mark-down.
Where transactions are made in the  over-the-counter  market, the Fund will deal
with  primary  market  makers  unless  more   favorable   prices  are  otherwise
obtainable.

General Brokerage Policies

         In order  to take  advantage  of the  availability  of  lower  purchase
prices, the Fund may participate,  if and when practicable, in group bidding for
the direct purchase from an issuer of certain securities.

         Keystone makes  investment  decisions for the Fund  independently  from
those of its other clients.  It may frequently develop,  however,  that Keystone
will make the same  investment  decision for more than one client.  Simultaneous
transactions  are  inevitable  when  the  same  security  is  suitable  for  the
investment  objective of more than one account.  When two or more of its clients
are engaged in the purchase or sale of the same security, Keystone will allocate
the  transactions  according  to a  formula  that  is  equitable  to each of its
clients. Although, in some cases, this system could have a detrimental effect on
the price or volume of the Fund's  securities,  the Fund  believes that in other
cases its ability to  participate  in volume  transactions  will produce  better
executions.

         The Fund does not purchase portfolio  securities from or sell portfolio
securities to Keystone,  EKD, or any of their affiliated  persons, as defined in
the 1940 Act.


                                                         6


         The Board of  Trustees  will,  from  time to time,  review  the  Fund's
brokerage policy. Because of the possibility of further regulatory  developments
affecting the securities exchanges and brokerage practices generally,  the Board
of Trustees may change, modify or eliminate any of the foregoing practices.


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


                                DISTRIBUTION PLAN

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


General

         The  Fund  offers  Institutional   Service  and  Institutional  shares.
Institutional Service shares are offered without an initial sales charge and are
not subject to a sales  charge  when they are  redeemed.  Institutional  Service
shares make payments under a distribution  plan pursuant to Rule 12b-1 under the
1940 Act (the "Institutional Service Distribution Plan").

         Institutional  shares are also  offered  without a sales  charge at the
time of purchase and are not subject to a sales  charge when they are  redeemed.
There  is  no   distribution   plan  with  respect  to   Institutional   shares.
Institutional  shares are available  only to certain  investors.  The prospectus
contains a general description of how investors may buy shares of the Fund.

         Rule 12b-1 under the 1940 Act permits investment companies, such as the
Fund, to use their assets to bear expenses of distributing  their shares if they
comply  with  various  conditions,  including  adoption of a  distribution  plan
containing certain provisions set forth in Rule 12b-1. The Fund's  Institutional
Service  Distribution  Plan has been  approved by the Fund's  Board of Trustees,
including  a  majority  of  the  Independent  Trustees  (Trustees  who  are  not
interested  persons of the Fund,  as  defined  in the 1940 Act,  and who have no
direct or indirect  financial  interest in the Fund's  Distribution  Plan or any
agreement related thereto).

         The National  Association of Securities  Dealers,  Inc. ("NASD") limits
the amount that the Fund may pay annually in distribution  costs for sale of its
shares and  shareholder  service fees.  The NASD limits annual  expenditures  to
1.00% of the  aggregate  average  daily net asset value of its shares,  of which
0.75%  may be used to pay such  distribution  costs and 0.25% may be used to pay
shareholder  service fees.  The NASD also limits the  aggregate  amount that the
Fund may pay for such distribution costs to 6.25% of gross share sales since the
inception of the Institutional  Service  Distribution Plan, plus interest at the
prime rate plus 1.00% on such amounts remaining unpaid from time to time.

Institutional  Service Distribution Plan. The Institutional Service Distribution
Plan  provides  that the Fund may expend  daily  amounts at an annual rate up to
0.35% of the Fund's average daily net asset value  attributable to Institutional
Service  shares to finance any activity that is primarily  intended to result in
the  sale  of  Institutional  Service  shares,   including  without  limitation,
expenditures  consisting  of the  payment  of  service  fees  to  the  Principal
Underwriter  or others.  Such  payments are expected to be at a rate of 0.25% of
the average daily net assets of Institutional Service shares.

         Amounts paid by the Fund under the Institutional  Service  Distribution
Plan are currently  used to pay the Principal  Underwriter  and others,  such as
broker-dealers,  service  fees at an annual  rate of up to 0.25% of the  average
daily  net  asset  value  of  Institutional  Service  shares  maintained  by the
Principal  Underwriter  and such others and outstanding on the books of the Fund
for  specified  periods.  The Fund  may  also  make  payments  to the  Principal
Underwriter,  broker-dealers  and  others  for  activities  that  are  primarily
intended  to  result  in  sales  of the  Fund's  Institutional  Service  shares,
including,  but not limited to, mail promotions and  advertising,  including the
use  of  member  name  and  address  lists  of  affinity  groups,   professional
associations,  trade groups, industry associations,  or other associations,  for
which use royalty payments may be made.

         The Institutional  Service Distribution Plan may be terminated,  at any
time,  by vote of the  Independent  Trustees  or by  vote of a  majority  of the
outstanding voting shares of the Fund's Institutional Service shares. Any change
in the Institutional  Service  Distribution Plan that would materially  increase
the distribution  expenses of the Fund's  Institutional  Service shares provided
for  in  the  Institutional   Service  Distribution  Plan  requires  shareholder
approval.  Otherwise, the Institutional Service Distribution Plan may be amended
by the Trustees, including the Independent Trustees.

         The total amounts paid by the Fund under the foregoing arrangements may
not exceed the maximum  Institutional  Service Distribution Plan limit specified
above,  and the amounts and  purposes of  expenditures  under the  Institutional
Service   Distribution  Plan  must  be  reported  to  the  Independent  Trustees
quarterly.  The  Independent  Trustees  may  require or  approve  changes in the
implementation or operation of the Institutional  Service  Distribution Plan and
may also require  that total  expenditures  by the Fund under the  Institutional
Service  Distribution  Plan be kept within limits lower than the maximum  amount
permitted by the Distribution Plan as stated above.

         While the Institutional  Service  Distribution  Plan is in effect,  the
Fund will be required to commit the selection and  nomination of candidates  for
Independent Trustees to the discretion of the Independent Trustees.

         The Independent  Trustees of the Fund have determined that the sales of
the Fund's  Institutional  Service  shares  resulting  from  payments  under the
Institutional Service Distribution Plan have benefit the Fund.


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


                              TRUSTEES AND OFFICERS

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



         Trustees and officers of the Trust,  their  principal  occupations  and
some of their affiliations over the last five years are as follows:
<TABLE>
   
<S>                                 <C> 
FREDERICK  AMLING:                  Trustee  of the  Trust;  Trustee or
                                    Director  of  29  other  Evergreen  Keystone
                                    funds; Professor, Finance Department, George
                                    Washington University;  President,  Amling &
                                    Company  (investment   advice);  and  former
                                    Member,  Board of Advisers,  Credito Emilano
                                    (banking).

LAURENCE B. ASHKIN:                 Trustee of the Trust; Trustee or Director of all Evergreen Keystone
                                    funds other than Evergreen Investment Trust; real estate developer and
                                    construction consultant; and President of Centrum Equities and
                                    Centrum Properties, Inc.

CHARLES A. AUSTIN III:              Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; Investment Counselor to Appleton Partners, Inc.; and former
                                    Managing Director, Seaward Management Corporation (investment ad
                                    vice).

FOSTER BAM:                         Trustee of the Trust; Trustee or Director of all other Evergreen Keystone
                                    funds other than Evergreen Investment Trust; Partner in the law firm
                                    of Cummings & Lockwood; Director, Symmetrix, Inc. (sulphur company)
                                    and Pet Practice, Inc. (veterinary services); and former Director,
                                    Chartwell Group Ltd. (Manufacturer of office furnishings and
                                    accessories), Waste Disposal Equipment Acquisition Corporation and
                                    Rehabilitation Corporation of America (rehabilitation hospitals).

*GEORGE S. BISSELL:                 Chief Executive Officer of the Trust and of 29 other Evergreen Keystone
                                    funds; Chairman of the Board and Trustee of the Trust; Chairman of the
                                    Board and Trustee or Director of all Evergreen Keystone funds;
                                    Chairman of the Board and Trustee of Anatolia College; Trustee of
                                    University Hospital (and Chairman of its Investment Committee);
                                    former Director and Chairman of the Board of Hartwell Keystone
                                    Advisers, Inc.; and former Chairman of the Board, Director and Chief
                                    Executive Officer of Keystone Investments, Inc.

EDWIN D. CAMPBELL:                  Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; Principal, Padanaram Associates, Inc.; and former Executive Di
                                    rector, Coalition of Essential Schools, Brown University.

CHARLES F. CHAPIN:                  Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; and former Director, Peoples Bank (Charlotte, NC).

K. DUN GIFFORD:                     Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; Trustee, Treasurer and Chairman of the Finance Committee,
                                    Cambridge College; Chairman Emeritus and Director, American
                                    Institute of Food and Wine;  Chairman and President, Oldways
                                    Preservation and Exchange Trust (education); former Chairman of the
                                    Board, Director, and Executive Vice President, The London Harness
                                    Company; former Managing Partner, Roscommon Capital Corp.; former
                                    Chief Executive Officer, Gifford Gifts of Fine Foods; former Chairman,
                                    Gifford, Drescher & Associates (environmental consulting); and former
                                    Director, Keystone Investments and Keystone.

JAMES S. HOWELL:                    Trustee of the Trust; Trustee or Director of all other Evergreen Keystone
                                    funds; former Chairman of the Distribution Foundation for the
                                    Carolinas; and former Vice President of Lance Inc. (food manufacturing).

LEROY  KEITH, JR.:                  Trustee of the Trust; Trustee or
                                    Director  of  29  other  Evergreen  Keystone
                                    funds;  Chairman  of  the  Board  and  Chief
                                    Executive Officer,  Carson Products Company;
                                    Director  of Phoenix  Total  Return Fund and
                                    Equifax,  Inc.;  Trustee of  Phoenix  Series
                                    Fund, Phoenix  Multi-Portfolio Fund, and The
                                    Phoenix  Big Edge  Series  Fund;  and former
                                    President, Morehouse
                                    College.

F. RAY KEYSER, JR.:                 Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; Chairman and Of Counsel, Keyser, Crowley & Meub, P.C.; Mem
                                    ber, Governor's (VT) Council of Economic Advisers; Chairman of the
                                    Board and Director, Central Vermont Public Service Corporation and
                                    Lahey Hitchcock Clinic; Director, Vermont Yankee Nuclear Power
                                    Corporation, Grand Trunk Corporation, Grand Trunk Western Railroad,
                                    Union  Mutual Fire  Insurance  Company,  New
                                    England Guaranty  Insurance  Company,  Inc.,
                                    and the Investment Company Institute; former
                                    Director    and    President,     Associated
                                    Industries  of Vermont;  former  Director of
                                    Keystone,  Central  Vermont  Railway,  Inc.,
                                    S.K.I.  Ltd., and Arrow Financial Corp.; and
                                    former  Director  and Chairman of the Board,
                                    Proctor Bank and Green Mountain Bank.

GERALD M. MCDONNELL:                Trustee of the Trust; Trustee or Director of all other Evergreen Keystone
                                    funds; Trustee or Director of all of the funds in the Evergreen Family of
                                    Funds; and Sales Representative with Nucor-Yamoto, Inc. (Steel
                                    producer).

THOMAS L. MCVERRY:                  Trustee of the Trust; Trustee or Director of all other Evergreen Keystone
                                    funds; former Vice President and Director of Rexham Corporation; and
                                    former Director of Carolina Cooperative Federal Credit Union.

*WILLIAM WALT PETTIT:               Trustee of the Trust; Trustee or Director of all other Evergreen Keystone
                                    funds; and Partner in the law firm of Holcomb and Pettit, P.A.

DAVID M. RICHARDSON:                Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; Vice Chair and former Executive Vice President, DHR Interna
                                    tional, Inc. (executive recruitment); former Senior Vice President,
                                    Boyden International Inc. (executive recruitment); and Director,
                                    Commerce and Industry Association of New Jersey, 411 International,
                                    Inc., and J&M Cumming Paper Co.

RUSSELL A.
     SALTON, III MD:                Trustee of the Trust; Trustee or Director of all other Evergreen Keystone
                                    funds; Medical Director, U.S. Health Care/Aetna Health Services; and
                                    former Managed Health Care Consultant; former President, Primary
                                    Physician Care.

MICHAEL S. SCOFIELD:                Trustee of the Trust; Trustee or Director of all other Evergreen Keystone
                                    funds; and Attorney, Law Offices of Michael S. Scofield.

RICHARD J. SHIMA:                   Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; Chairman, Environmental Warranty, Inc. (insurance agency);
                                    Executive Consultant, Drake Beam Morin, Inc. (executive
                                    outplacement); Director of Connecticut Natural Gas Corporation,
                                    Hartford Hospital, Old State House Association, Middlesex Mutual
                                    Assurance Company, and Enhance Financial Services, Inc.; Chairman,
                                    Board of Trustees, Hartford Graduate Center; Trustee, Greater Hartford
                                    YMCA; former Director, Vice Chairman and Chief Investment Officer,
                                    The Travelers Corporation; former Trustee, Kingswood-Oxford School;
                                    and former Managing Director and Consultant, Russell Miller, Inc.

ANDREW J. SIMONS:                   Trustee of the Trust; Trustee or Director of 29 other Evergreen Keystone
                                    funds; Partner, Farrell, Fritz, Caemmerer, Cleary, Barnosky &
                                    Armentano, P.C.; Adjunct Professor of Law and former Associate Dean,
                                    St. John's University School of Law; Adjunct Professor of Law, Touro
                                    College School of Law; and former President, Nassau County Bar
                                    Association.

JOHN J. PILEGGI:                    President and Treasurer of the Trust; President and Treasurer of all
                                    other Evergreen Keystone funds; Senior Managing Director, Furman
                                    Selz LLC since 1992; Managing Director from 1984 to 1992; Consultant
                                    to BISYS Fund Services since 1996; 230 Park Avenue, Suite 910, New
                                    York, NY.

GEORGE O. MARTINEZ:                 Secretary of the Trust; Secretary of all other  Evergreen Keystone funds;
                                    Senior Vice President and Director of Administration and Regulatory
                                    Services, BISYS Fund Services; Vice President/Assistant General
                                    Counsel,  Alliance  Capital  Management from
                                    1988 to 1995;  3435 Stelzer Road,  Columbus,
                                    Ohio.
</TABLE>
         During the fiscal period ended February 28, 1997, no Trustee or officer
received any direct  remuneration from the Fund. For the year ended February 28,
1997,  aggregate  compensation  received by the  Independent  Trustees on a fund
complex wide basis (which  includes over 60 mutual  funds) was $461,816.  On May
31, 1997, the Fund's Trustees and officers as a group did not  beneficially  own
any of the Fund's outstanding shares.

         Set forth below for each of the Trustees receiving in excess of $60,000
for the  period of March 1, 1996  through  February  28,  1997 is the  aggregate
compensation paid to such Trustee by the EvergreenKeystone Funds:




                                Aggregate                  Total Compensation
                                Compensation               From Registrant
                                from                       and Fund Complex
Name                            Registrant                 Pd. To Trustee

James S. Howell                 $0                         $66,000
Russell A Salton, III M.D.      $0                         $61,000
Michael S. Scofield             $0                         $61,000

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


                               INVESTMENT ADVISER

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


         Subject to the general  supervision  of the Fund's  Board of  Trustees,
Keystone provides investment advice,  management and administrative  services to
the Fund.

         On  December  11,  1996,  the  predecessor  corporation  to First Union
Keystone,  Keystone  Investments,  Inc. ("Keystone  Investments") and indirectly
each subsidiary of Keystone Investments,  including Keystone, were acquired (the
"Acquisition")  by First  Union  National  Bank of North  Carolina  ("FUNB"),  a
wholly-owned  subsidiary of First Union  Corporation  ("First Union").  Keystone
Investments  was acquired by FUNB by merger into a  wholly-owned  subsidiary  of
FUNB,  which  entity  then  assumed the name "First  Union  Keystone,  Inc." and
succeeded to the business of the predecessor corporation. Contemporaneously with
the Acquisition,  the Fund entered into a new investment advisory agreement with
Keystone and into a principal  underwriting  agreement  with EKD, a wholly-owned
subsidiary  of BISYS.  The new  investment  advisory  agreement  (the  "Advisory
Agreement")  was approved by the  shareholders  of the Fund on December 9, 1996,
and became effective on December 11, 1996.

         First Union Keystone and each of its subsidiaries,  including Keystone,
are now  indirectly  owned by First  Union.  First  Union  is  headquartered  in
Charlotte,  North Carolina,  and had $140 billion in  consolidated  assets as of
December 31,  1996.  First Union and its  subsidiaries  provide a broad range of
financial  services to individuals and businesses  throughout the United States.
The Capital  Management  Group of FUNB and  Evergreen  Asset  Management  Corp.,
wholly-owned subsidiaries of FUNB, manage or otherwise oversee the investment of
over $60 billion in assets as of December 31, 1996  belonging to a wide range of
clients, including the Evergreen Family of Funds.

         Pursuant to the Advisory  Agreement,  Keystone  manages and administers
the Fund's  operation and manages the investment and  reinvestment of the Fund's
assets in conformity with the Fund's investment objective and restrictions.

         The  Advisory  Agreement  stipulates  that  Keystone  shall (i) provide
office space and all  necessary  office  facilities,  equipment and personnel in
connection with its services under the Advisory Agreement; (ii) pay or reimburse
the Fund for the  compensation  of  officers  and  Trustees  of the Fund who are
affiliated  with  Keystone  and (iii) pay all  expenses of Keystone  incurred in
connection  with the  provision  of its  services.  In addition,  Keystone  also
assumes and pays or reimburses  the Fund for (i) all charges and expenses of any
custodian or depository  appointed by the Fund for the  safekeeping of its cash,
securities and other property; (ii) all charges and expenses for bookkeeping and
independent auditors;  (iii) all charges and expenses of any transfer agents and
registrars  appointed by the Fund; (iv) all costs of  certificates  representing
shares  of the Fund;  (v) all fees and  expenses  involved  in  registering  and
maintaining  registrations of the Fund and of its shares with the Securities and
Exchange  Commission (the "Commission") and registering or qualifying its shares
under  state  or other  securities  laws,  including,  without  limitation,  the
preparation and printing of registration statements, prospectuses and statements
of additional  information for filing with the Commission and other authorities;
(vi) expenses of preparing,  printing and mailing prospectuses and statements of
additional  information  to  shareholders  of the Fund;  (vii) all  expenses  of
shareholders'  and  Trustees'  meetings and of  preparing,  printing and mailing
notices, reports and proxy materials to shareholders of the Fund; and (viii) all
charges and expenses of filing annual and other reports with the  Commission and
other authorities.

         The Fund  assumes and pays all other  expenses of the Fund,  including,
without  limitation,  (i) fees and expenses of the Fund's Independent  Trustees;
(ii) all brokers' fees,  expenses and  commissions  and issue and transfer taxes
chargeable to the Fund in connection with transactions  involving securities and
other  property  to which the Fund is a party;  (iii) all costs and  expenses of
distribution  of its  Institutional  Services  shares  incurred  pursuant to its
Institutional  Services  Distribution  Plan adopted pursuant to Rule 12b-1 under
the 1940 Act;  (iv) all charges and  expenses of legal  counsel for the Fund and
for the Fund's  Independent  Trustees on routine legal  matters  relating to the
Fund, including,  without limitation, legal services rendered in connection with
the Fund's existence,  business trust and financial structure and relations with
its shareholders,  registrations and qualifications of securities under federal,
state and other laws, and issues of securities; (v) all taxes and business trust
fees payable by the Fund to federal, state or other governmental agencies;  (vi)
all interest costs of the Fund; and (vii) all extraordinary expenses and charges
of the Fund,  including all charges and expenses of legal counsel to the Fund in
connection  with  extraordinary  matters,  including,  without  limitation,  any
litigation involving the Fund, its Trustees,  officers,  employees or agents. In
the event Keystone provides any of these services or pays any of these expenses,
the Fund will promptly reimburse Keystone therefor.

         The Fund pays Keystone a fee for its services to the Fund at the annual
rate of 0.30% of the average  daily net asset value of the shares of the Fund. A
pro rata  portion  of the fee is  payable  in  arrears at the end of each day or
calendar month as Keystone may, from time to time, specify to the Fund.

         Currently,  Keystone has voluntarily limited the annual expenses of the
Fund's  Institutional  Service  shares  to no more  than  0.55% and 0.30% of the
Institutional shares average daily net assets, respectively. Keystone intends to
continue the foregoing expense  limitations on a calendar  month-bymonth  basis.
Keystone will periodically  evaluate the foregoing  expense  limitations and may
modify  or  terminate  them in the  future.  Keystone  will not be  required  to
reimburse  the  Fund  for  amounts  in  excess  of  an  expense  limit  if  such
reimbursement  would  result in the Fund's  inability  to qualify as a regulated
investment  company under  provisions  of the Internal  Revenue Code of 1986, as
amended (the "Code").

         Under the Advisory  Agreement,  any liability of Keystone in connection
with  rendering  services  thereunder  is limited to  situations  involving  its
willful  misfeasance,  bad faith,  gross negligence or reckless disregard of its
duties.

         The  Advisory  Agreement  continues  in effect  for two years  from its
effective  date and,  thereafter,  from year to year only if  approved  at least
annually  by the Board of  Trustees  of the Fund or by a 1940 Act  Majority.  In
either case, the terms of the Advisory Agreement and continuance thereof must be
approved by the vote of a majority of the Independent Trustees cast in person at
a meeting  called  for the  purpose  of voting on such  approval.  The  Advisory
Agreement may be terminated,  without penalty, on 60 days' written notice by the
Fund's Board of Trustees or by a vote of a majority of outstanding  shares.  The
Advisory  Agreement will terminate  automatically  upon its "assignment" as that
term is defined in the 1940 Act.


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


                              PRINCIPAL UNDERWRITER

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



         EKD, as agent,  has agreed to use its best  efforts to find  purchasers
for  the  shares.   EKD  may  retain  and  employ   representatives  to  promote
distribution  of the shares  and may  obtain  orders  from  broker-dealers,  and
others,  acting as  principals,  for sales of shares to them.  The  Underwriting
Agreement  provides that EKD will bear the expense of preparing,  printing,  and
distributing  advertising and sales literature and  prospectuses  used by it. In
its capacity as principal  underwriter,  EKD may receive  payments from the Fund
pursuant to the Fund's Distribution Plan.

         The  Underwriting  Agreement  provides that it will remain in effect as
long as its terms  and  continuance  are  approved  annually  (i) by a vote of a
majority of the Fund's Independent  Trustees,  and (ii) by vote of a majority of
the Fund's  Trustees,  in each case, cast in person at a meeting called for that
purpose.

         The Underwriting  Agreement may be terminated,  without penalty,  on 60
days'  written  notice by the Board of  Trustees  or by a vote of a majority  of
outstanding shares. The Underwriting Agreement will terminate automatically upon
its "assignment," as that term is defined in the 1940 Act.

         From time to time, if, in EKD's judgment, it could benefit the sales of
Fund shares, EKD may provide to selected  broker-dealers  promotional  materials
and selling aids,  including,  but not limited to, personal  computers,  related
software, and Fund data files.

         All subscriptions and sales of shares by EKD are at the public offering
price of the shares,  as  determined in  accordance  with the  provisions of the
Fund's  Declaration  of Trust,  By-Laws,  current  prospectus  and  statement of
additional  information.  All orders are subject to acceptance by the Fund,  and
the Fund reserves the right in its sole discretion to reject any order received.
Under the Distribution  Agreement,  the Fund is not liable to anyone for failure
to accept any order.

         EKD has agreed that it will,  in all  respects,  duly  conform with all
state and federal laws applicable to the sale of the shares. EKD has also agreed
that it will indemnify and hold harmless the Fund, and each person who has been,
is or may be a Trustee  or  officer  of the Fund,  against  expenses  reasonably
incurred by any of them in connection with any claim, action, suit or proceeding
to which any of them may be a party,  that  arises out of or is alleged to arise
out of any misrepresentation or omission to state a material fact on the part of
EKD or any other  person for whose acts EKD is  responsible  or is alleged to be
responsible, unless such misrepresentation or omission was made in reliance upon
written information furnished by the Fund.


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


                                SUB-ADMINISTRATOR

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

         BISYS provides  personel to serve as officers of the Fund, and provides
certain  administrative  services to the Fund  pursuant  to a  sub-administrator
agreement. For its services under that agreement, BISYS receives from Keystone a
fee based on the aggregate  average daily net assets of the Fund at a rate based
on the total assets of all mutual funds for which FUNB  affiliates also serve as
investment adviser and BISYS serves as sub-administrator.  The sub-administrator
fee is calculated in accordance with the following schedule:
<TABLE>
<S>                                                  <C>
                                                     Aggregate Average Daily Net Assets Of Mutual Funds
                                                     For Which Any Affiliate Of FUNB Serves As
Sub-Administrator                                    Investment Adviser Adviser and BISYS
Fee                                                  Serves as Sub-Administrator
- --------------------------------------------------------------------------------------------

0.0100%                                              on the first $7 billion
0.0075%                                              on the next $3 billion
0.0050%                                              on the next $15 billion
0.0040%                                              on assets in excess of $25 billion

</TABLE>

         The total  assets of the mutual  funds for which FUNB  affiliates  also
serve as investment advisers were approximately $29.2 billion as of February 28,
1997.


    

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


                              DECLARATION OF TRUST

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


Massachusetts Business Trust

         The  Fund  is  a  Massachusetts  business  trust  established  under  a
Declaration  of Trust  dated June 19,  1991,  as amended  (the  "Declaration  of
Trust").  The Fund is similar in most  respects to a business  corporation.  The
principal  distinction  between  the  Fund  and a  corporation  relates  to  the
shareholder  liability described below. A copy of the Declaration of Trust is on
file as an  exhibit  to the  Fund's  Registration  Statement.  This  summary  is
qualified in its entirety by reference to the Declaration of Trust.

Description of Shares

         The Declaration of Trust authorizes the issuance of an unlimited number
of shares of  beneficial  interest of classes of shares.  Each share of the Fund
represents an equal  proportionate  interest with each other share of the series
or class. Upon  liquidation,  shares are entitled to a pro rata share in the net
assets  of  the  portfolio  of  securities   underlying  the  series  or  class.
Shareholders have no preemptive or conversion rights.  Shares are redeemable and
transferable. The Fund offers Institutional Service and Institutional Shares but
may issue additional classes or series of shares.

Shareholder Liability

         Pursuant to certain decisions of the Massachusetts courts, shareholders
of a  Massachusetts  business  trust may, under certain  circumstances,  be held
personally  liable  for the  obligations  of the Fund.  The  possibility  of the
shareholders incurring financial loss for that reason appears remote because the
Fund's  Declaration  of Trust (1) contains an express  disclaimer of shareholder
liability  for  obligations  of the  Fund;  (2)  requires  that  notice  of such
disclaimer be given in each agreement,  obligation or instrument entered into or
executed by the Fund or the Trustees;  and (3) provides for  indemnification out
of Fund property for any shareholder held personally  liable for the obligations
of the Fund.

Voting Rights

         Under the  terms of the  Declaration  of Trust,  the Fund does not hold
annual  meetings.  At meetings called for the initial election of Trustees or to
consider  other  matters  shares  are  entitled  to one vote per  share.  Shares
generally vote together as one class on all matters. No amendment may be made to
the Declaration of Trust that adversely  affects any class of shares without the
approval of a majority of the shares of that class.  Shares have  non-cumulative
voting  rights,  which  means  that the  holders  of more than 50% of the shares
voting for the election of Trustees can elect 100% of the Trustees to be elected
at a meeting, and in such event, the holders of the remaining 50% or less of the
shares voting will not be able to elect any Trustees.

         After the initial meeting  electing  Trustees,  no further  meetings of
shareholders  for the purpose of electing  Trustees will be held unless required
by law or unless  and until such time as less than a  majority  of the  Trustees
holding  office have been  elected by  shareholders,  at which time the Trustees
then in office will call a shareholders' meeting for election of Trustees.

         Except as set forth above,  the Trustees  shall continue to hold office
indefinitely,  unless  otherwise  required  by law,  and may  appoint  successor
Trustees. A Trustee may be removed from or cease to hold office (as the case may
be) (1) at any time by two-thirds vote of the remaining Trustees;  (2) when such
Trustee  becomes  mentally  or  physically  incapacitated;  or (3) at a  special
meeting of shareholders by a two-thirds vote of the Fund's  outstanding  shares.
Any Trustee may voluntarily resign from office.

Limitation of Trustees' Liability

         The  Declaration  of Trust provides that a Trustee shall be liable only
for his own willful  defaults and, if reasonable  care has been exercised in the
selection of officers,  agents,  employees or investment advisers,  shall not be
liable for any neglect or wrongdoing of any such person; provided, however, that
nothing  in the  Declaration  of Trust  shall  protect  a  Trustee  against  any
liability for his willful  misfeasance,  bad faith, gross negligence or reckless
disregard of his duties.

         The Trustees have absolute and  exclusive  control over the  management
and  disposition of all assets of the Fund and may perform such acts as in their
sole  judgment  and  discretion  are  necessary  and proper for  conducting  the
business and affairs of the Fund or promoting  the interests of the Fund and the
shareholders.


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


                                    EXPENSES

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


Investment Advisory Fees
   
For the fiscal  period  ended  February 28, 1997 and for each of the Fund's last
three fiscal years,  the table below lists the total dollar  amounts paid by the
Fund to Keystone for services rendered under the Advisory  Agreement.  The table
below also shows the percentage of the Fund's average net assets  represented by
Keystone's fees. For more information, see "INVESTMENT ADVISER."

<TABLE>
<S>                               <C>                                          <C>
                                                                               Percentage of Fund's Average Net
                                  Fee Paid to Keystone under                   Assets Represented by Keystone's
                                  the Advisory Agreement                       Fee
                                  ---------------------------------------      -----------------------------------------
Fiscal Period Ended
February 28, 1997                 $101,412                                     0.30%
Fiscal Year Ended
September 30,
1996                              $121,105                                     0.30%
1995                              $79,819                                      0.30%
1994                              $123,050                                     0.30%
</TABLE>

Distribution Plan Expenses

During the fiscal  period ended  February 28, 1997 and the year ended  September
30, 1996, the Fund paid $9,161 and $23,210, respectively, to FICO or EKD, as the
case  may be  under  its  Institutional  Service  Distribution  Plan.  For  more
information, see "Distribution Plan."

Brokerage Commissions

The Fund paid no brokerage  commissions for the fiscal period of October 1, 1996
to February 28, 1997 and the fiscal years ending  September  30, 1996,  1995 and
1994.

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


                              FINANCIAL STATEMENTS

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


         The Fund's  financial  statements  for the fiscal period ended February
28, 1997, and the report thereon of KPMG Peat Marwick LLP, are  incorporated  by
reference  herein from the Fund's Annual  Report,  as filed with the  Commission
pursuant to Section 30(d) of the 1940 Act and Rule 30d-1 thereunder.

         You may obtain a copy of the Fund's  Annual  Report  without  charge by
writing to EKSC, P.O. Box 2121, Boston,  Massachusetts 02106-2121, or by calling
EKSC toll free at 1-800-343-2898.


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


                 STANDARDIZED TOTAL RETURN AND YIELD QUOTATIONS

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

         Total return  quotations  for a class of shares of the Fund as they may
appear from time to time in advertisements are calculated by finding the average
annual  compounded  rates of return over one, five and ten year periods,  or the
time  periods for which such class of shares has been  effective,  whichever  is
relevant,  on a  hypothetical  $1,000  investment  that would equate the initial
amount  invested  in the class to the ending  redeemable  value.  To the initial
investment  all dividends and  distributions  are added,  and all recurring fees
charged to all shareholder  accounts are deducted.  The ending  redeemable value
assumes a complete redemption at the end of the relevant periods.

         The total return for Institutional Service shares for the fiscal period
ended February 28, 1997 and the fiscal year ended  September 30, 1996, was 2.97%
and 6.60%, respectively.  Average annual total return for Institutional Services
shares  for the  period  May 23,  1994  (commencement  of  operations),  through
February 28, 1997 was 5.99%.

         The total  return for  Institional  shares for the fiscal  period ended
February 28, 1997 and the fiscal year ended  September  30, 1996,  was 2.97% and
6.86%,  respectively.  The average annual total return for Institutional  shares
for the five  year  period  ended  February  28,  1997,  was  5.32%  and,  since
inception,  October 1, 1991  (commencement of operations),  through February 28,
1997, was 5.35%.

         Current  yield  quotations  as they may appear,  from time to time,  in
advertisements will consist of a quotation based on a 30-day period ended on the
date of the most recent balance sheet of the Fund,  computed by dividing the net
investment  income per share  earned  during the period by the maximum  offering
price per  share on the last day of the base  period.  The  current  yields  for
Institutional  Service  and  Institutional  shares for the 30-day  period  ended
February 28, 1997 were 6.08% and 6.34%, respectively.

         Any given  yield or total  return  quotation  should not be  considered
representative of the Fund's yield or total return for any future period.
    
- --------------------------------------------------------------------------------


                             ADDITIONAL INFORMATION

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


Small Accounts

         The Fund  reserves  the right to redeem  shares in any account in which
the value of  shares  is less  than  $1,000.  The  redemption  proceeds  will be
promptly  paid to the  shareholder.  Shareholders  will  be  notified  if  their
accounts  are less than such amount and given 60 days to bring the account up to
such amount before the redemption is made.

Redemptions in Kind

         If conditions  arise that would make it undesirable for the Fund to pay
for all  redemptions  in  cash,  the Fund may  authorize  payment  to be made in
portfolio securities or other property.  The Fund has obligated itself under the
1940 Act, however, to redeem for cash all shares presented for redemption by any
one  shareholder  in any 90-day period up to the lesser of $250,000 or 1% of the
Fund's net  assets.  Securities  delivered  in payment of  redemptions  would be
valued at the same value  assigned to them in computing  the net asset value per
share  and  would,  to the  extent  permitted  by law,  be  readily  marketable.
Shareholders  receiving such  securities  would incur brokerage costs when these
securities are sold.

Other Information

         Except as otherwise  stated in its  prospectus  or required by law, the
Fund  reserves  the  right to  change  the  terms  of the  offer  stated  in its
prospectus without shareholder approval, including the right to impose or change
fees for services provided.

         No  dealer,  salesman  or  other  person  is  authorized  to  give  any
information  or  to  make  any   representation  not  contained  in  the  Fund's
prospectus,  statement  of  additional  information  or  in  supplemental  sales
literature  issued by the Fund or FICO, and no person is entitled to rely on any
information or representation not contained therein.
   
         As of May 31, 1997,  the following  accounts owned of record 5% or more
of the Fund's Institutional Service shares:
                                                         PERCENTAGE
         RECORD OWNER                                     OF CLASS
                                                           OWNED

         William H. Morgan Jr.                              32.68%
         906 Weightman
         Greenwood, MS 38930-2438

         Skyline Telephone Membership Corp                  28.35%
         Attn: Hobart G. Davis
         P.O. Box 759
         Jefferson, NC 28694-0759

         M & M Farms                                        15.54%
         906 Weightman
         Greenwood, MS 38930-2438

         As of November 21, 1996,  the following  accounts owned of record 5% or
more of the outstanding shares of the Fund's Class Z shares:
                                                          PERCENTAGE
         RECORD OWNER                                      OF CLASS
                                                             OWNED

         Bank of New York Trustee                         28.47%
         FBO Saatchi & Saatchi Cash Bal.
         Retirement Plan Trust
         Attn: Ms. Amy Nellissen
         375 Hudson St
         New York, NY 10014-3658

         Ampex Retirement Master Trust                    41.47%
         P.O. Box 1992
         Boston, MA 02105-1992

         Keystone Investments                             24.61%
         Defined Benefit Pension Trusts
         ATTN: Operations
         200 Berkeley Street 25th Floor
         Boston, MA 02116-5022

         Buffalo Color Corp. Master Trust                 5.18%
         PO Box 1991
         Boston, MA 02105-1992

         The Fund's  prospectus  and  statement of additional  information  omit
certain  information  contained  in its  registration  statement  filed with the
Commission,  which may be obtained  from the  Commission's  principal  office in
Washington, D.C. upon payment of the fee prescribed by the rules and regulations
promulgated by the Commission.
    
- --------------------------------------------------------------------------------


                                    APPENDIX

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



                           U.S. GOVERNMENT SECURITIES

         Securities  issued  or  guaranteed  by the U.S.  government  include  a
variety  of  Treasury  securities  that  differ  only in their  interest  rates,
maturities and dates of issuance.  Treasury bills have maturities of one year or
less.  Treasury  notes have  maturities  of one to ten years and Treasury  bonds
generally  have  maturities  of greater  than ten years at the date of issuance.
Government  National  Mortgage  Association  ("GNMA")  securities  include  GNMA
mortgage  pass-through  certificates.  Such securities are supported by the full
faith and credit of the U.S. government.

         Securities  issued  or  guaranteed  by  U.S.   government  agencies  or
instrumentalities include securities issued or guaranteed by the Federal Housing
Administration,  Farmers Home  Administration,  Export-Import  Bank of the U.S.,
Small Business Administration, General Services Administration, Central Bank for
Cooperatives,  Federal  Home Loan  Banks,  Federal  Loan  Mortgage  Corporation,
Federal Intermediate Credit Banks, Federal Land Banks, Maritime  Administration,
The Tennessee  Valley  Authority,  District of Columbia Armory Board and Federal
National Mortgage Association.

         Some  obligations of U.S.  government  agencies and  instrumentalities,
such as securities of Federal Home Loan Banks, are supported by the right of the
issuer to borrow from the Treasury.  Others, such as bonds issued by the Federal
National Mortgage Association, a private corporation,  are supported only by the
credit of the  instrumentality.  The U.S.  government is not obligated by law to
provide support to an instrumentality it sponsors.  U.S.  government  securities
held by the Fund do not include  international  agencies or instrumentalities in
which the U.S. government, its agencies or instrumentalities  participate,  such
as the World Bank,  Asian  Development  Bank or the  Inter-American  Development
Bank, or issues insured by the Federal Deposit Insurance Corporation.

                             CORPORATE BOND RATINGS

S&P Ratings

         A Standard & Poor's  Ratings Group ("S&P")  corporate  bond rating is a
current  assessment of the  creditworthiness  of an obligor,  including obligors
outside  the  United  States,  with  respect  to  a  specific  obligation.  This
assessment may take into consideration obligors such as guarantors, insurers, or
lessees.  Ratings of foreign obligors do not take into account currency exchange
and  related  uncertainties.  The  ratings  are  based  on  current  information
furnished  by the  issuer or  obtained  by S&P from other  sources it  considers
reliable.

         The  ratings  are  based,   in  varying   degrees,   on  the  following
considerations:


         1.       likelihood  of  default  -  capacity  and  willingness  of the
                  obligor as to the timely  payment of interest and repayment of
                  principal in accordance with the terms of the obligation;

         2.       nature of and provisions of the obligation; and

         3.       protection afforded by and relative position of the obligation
                  in  the   event  of   bankruptcy,   reorganization   or  other
                  arrangement  under  the  laws of  bankruptcy  and  other  laws
                  affecting creditors' rights.

         PLUS (+) OR MINUS (-): To provide more detailed  indications  of credit
quality, ratings from AA to A may be modified by the addition of a plus or minus
sign to show relative standing within the major rating categories.

         Eligible bond ratings are as follows:

         1.       AAA - Debt rated AAA has the highest  rating  assigned by S&P.
                  Capacity to pay  interest  and repay  principal  is  extremely
                  strong.

         2.       AA - Debt rated AA has a very strong  capacity to pay interest
                  and repay  principal  and differs from the higher rated issues
                  only in small degree.

Moody's Ratings

         Eligible ratings of Moody's Investors Service, Inc. ("Moody's") are as
follows:

         1. Aaa - Bonds that are rated Aaa are judged to be of the best quality.
They carry the smallest degree of investment risk and are generally  referred to
as  "gilt-edge."   Interest   payments  are  protected  by  a  large  or  by  an
exceptionally   stable  margin  and  principal  is  secure.  While  the  various
protective  elements are likely to change, such changes as can be visualized are
most unlikely to impair fundamentally strong position of such issues.

         2. Aa - Bonds that are rated Aa are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known as
high grade bonds.  They are rated lower than the best bonds  because  margins of
protection may not be as large as in Aaa securities or fluctuation of protective
elements may be of greater amplitude or there may be other elements present that
make the long term risks appear somewhat larger than in Aaa securities.

         Moody's applies  numerical  modifiers 1, 2 and 3 in each generic rating
classification  from Aa  through B in its  corporate  bond  rating  system.  The
modifier 1 indicates  that the  security  ranks in the higher end of its generic
rating category;  the modifier 2 indicates a mid-range ranking; and the modifier
3  indicates  that  the  issue  ranks in the  lower  end of its  generic  rating
category.

                       ADJUSTABLE RATE SECURITIES RATINGS

S&P Ratings

         An S&P rating of an issue  secured by a pool of  mortgages is a measure
of the  likelihood  that cash flow from the mortgages is  sufficient  for timely
payment of interest and principal on the rated  security.  Each rating  category
generally  defines  an  adverse  economic  climate  that is likely to impact the
performance  of the  mortgages  in the pool over time.  The rating  process  for
commercial mortgages, like all asset-backed financings, involves a credit, legal
structure and cash flow analysis.


         The credit  analysis  involves  an analysis  of the  originator  and an
evaluation  of the credit  quality of the loans and their risk  characteristics,
such as property types, geographic locations, loan maturity dates, loan-to-value
ratios, lien status and loan seasoning.

         The legal  structure  analysis  involves a review of legal documents to
determine the documents  accurately reflect the specifics of the financing and a
review of flow of funds  and  investment  restrictions  of any  reserve  fund or
credit enhancement.

         The cash flow analysis involves  identification of the type of security
created  out of the cash  flow  from the pool of  commercial  mortgages  and the
payment terms of the security.  Once these items are identified,  the individual
loan and pool  analysis are applied to  determine  cash flow  scenarios  for the
pool.

         Eligible ratings are as follows:

         1. AAA - Securities  rated AAA have the highest rating  assigned by S&P
and reflect certainty that the issuer at all times will have pledged  collateral
such that  scheduled cash flow and assumed  reinvestment  income thereon will be
sufficient  to pay annual  interest on the  securities  and redeem  principal at
maturity.

         2. AA - Securities  rated AA reflect  certainty that amounts  available
from distributions on the mortgage loans and from reserves will be sufficient to
pay monthly interest and return principal.

Moody's Ratings

         Moody's  rating  provides a system of  gradation  by which the relative
credit risks of investments in adjustable rate securities can be judged. Moody's
factors into its ratings the frequency, severity and timing of defaults in order
to provide an  assessment of the  appropriate  risk premium for taking on credit
risk. In rating adjustable rate securities,  Moody's uses the same letter system
as that for corporate bonds. In assessing risk, on average, the risks associated
with  Aaa and Aa  rated  Moody's  corporate  bonds  would  apply  to  adjustable
securities rated Aaa or Aa by Moody's.  See the description of Moody's corporate
bond ratings set forth above.

                            MONEY MARKET INSTRUMENTS

         Money market  securities are instruments  with remaining  maturities of
one year or less such as bank  certificates  of deposit,  bankers'  acceptances,
commercial  paper  (including  master  demand notes) and  obligations  issued or
guaranteed by the U.S. government,  its agencies or  instrumentalities,  some of
which may be subject to repurchase agreements.

Commercial Paper

         Commercial  paper will  consist of issues rated at the time of purchase
A-1 by  S&P,  Prime-1  by  Moody's,  or F-1 by  Fitch  Investors  Service,  L.P.
("Fitch's");  or,  if not  rated,  will be  issued  by  companies  that  have an
outstanding debt issue rated at the time of purchase Aaa, Aa or A by Moody's, or
AAA, AA or A by S&P,  or will be  determined  by  Keystone  to be of  comparable
quality.

S&P Ratings

         An  S&P  commercial  paper  rating  is  a  current  assessment  of  the
likelihood of timely payment of debt having an original maturity of no more than
365 days.  Ratings are graded  into four  categories,  ranging  from "A" for the
highest  quality  obligations  to "D" for the  lowest.  The top  category  is as
follows:

         1. A: Issues  assigned  this highest  rating are regarded as having the
greatest  capacity for timely  payment.  Issues in this category are  delineated
with the numbers 1, 2 and 3 to indicate the relative degree of safety.

         2. A-1: This designation  indicates that the degree of safety regarding
timely payment is either overwhelming or very strong. Those issues determined to
possess  overwhelming  safety  characteristics  are denoted with a plus (+) sign
designation.

Moody's Ratings

         The  term  "commercial  paper"  as used  by  Moody's  means  promissory
obligations  not having an original  maturity in excess of nine months.  Moody's
commercial  paper  ratings  are  opinions  of the  ability  of  issuers to repay
punctually  promissory  obligations not having an original maturity in excess of
nine months. Moody's employs the following designation,  judged to be investment
grade, to indicate the relative repayment capacity of rated issuers.

         The rating Prime-1 is the highest  commercial  paper rating assigned by
Moody's.  Issuers rated Prime-1 (or related supporting  institutions) are deemed
to have a superior capacity for repayment of short term promissory  obligations.
Repayment  capacity of Prime-1  issuers is normally  evidenced by the  following
characteristics:

         1. leading market positions in well-established industries;
         2. high rates of return on funds employed;
         3. conservative capitalization structures with moderate reliance on
            debt and ample asset protection;
         4. broad margins in earnings coverage of fixed financial
             charges and high internal cash generation; and
         5. well established access to a range of financial markets and
             assured sources of alternate liquidity.

         In assigning  ratings to issuers whose commercial paper obligations are
supported by the credit of another  entity or entities,  Moody's  evaluates  the
financial strength of the affiliated  corporations,  commercial banks, insurance
companies,  foreign governments or other entities, but only as one factor in the
total rating assessment.

Certificates of Deposit

         Certificates  of deposit are receipts  issued by a bank in exchange for
the  deposit  of funds.  The  issuer  agrees to pay the  amount  deposited  plus
interest to the bearer of the receipt on the date specified on the  certificate.
The certificate usually can be traded in the secondary market prior to maturity.

         Certificates  of deposit  will be limited  to U.S.  dollar  denominated
certificates  of  U.S.  banks,  including  their  branches  abroad,  and of U.S.
branches of foreign banks, that are members of the Federal Reserve System or the
Federal Deposit Insurance  Corporation and have at least $1 billion in assets as
of the date of their most recently published financial statements, or of savings
and loan associations that are members of the Federal Savings and Loan Insurance
Corporation, and have at least $1 billion in assets as of the date of their most
recently published financial statements.

         The Fund will not acquire time  deposits or  obligations  issued by the
International  Bank for  Reconstruction  and Development,  the Asian Development
Bank or the  Inter-American  Development Bank.  Additionally,  the Fund does not
intend  to  purchase  such  foreign   securities  (except  to  the  extent  that
certificates of deposit of foreign  branches of U.S. banks may be deemed foreign
securities) or purchase  certificates of deposit,  bankers' acceptances or other
similar obligations issued by foreign banks.


Bankers' Acceptances

         Bankers'   acceptances   typically   arise  from   short  term   credit
arrangements designed to enable businesses to obtain funds to finance commercial
transactions.  Generally,  an  acceptance  is a time draft drawn on a bank by an
exporter or an importer to obtain a stated  amount of funds to pay for  specific
merchandise.  The  draft  is  then  "accepted"  by the  bank  that,  in  effect,
unconditionally  guarantees  to pay the  face  value  of the  instrument  on its
maturity  date.  The  acceptance  may then be held by the  accepting  bank as an
earning  asset or it may be sold in the  secondary  market at the going  rate of
discount for a specific maturity.  Although maturities for acceptances can be as
long as 270  days,  most  acceptances  have  maturities  of six  months or less.
Bankers'  acceptances  acquired  by the Fund  must have  been  accepted  by U.S.
commercial banks,  including foreign branches of U.S.  commercial banks,  having
total assets at the time of purchase in excess of $1 billion and must be payable
in U.S. dollars.






<PAGE>


                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND

                                     PART C

                                OTHER INFORMATION


Item 24.      Financial Statements and Exhibits

Item 24 (a).  Financial Statements


All financial statements listed below are incorporated by reference from
Registrant's Annual Report, as filed with the Securiteis and Exchange
Commission.


Schedule of Investments                     February 28, 1997

Financial Highlights:

Institutional Service Shares                For the five months ended February 
                                            28, 1997, each of the years in 
                                            the two-year period ended 
                                            September 30, 1996, and the period 
                                            from May 23, 1994 (Date of Initial 
                                            Public Offering) to 
                                            September 30, 1994

Institutional Shares                        For the five months ended February 
                                            28, 1997, and each of the years in 
                                            the five-year period ended
                                            September 30, 1996

Statement of Assets and Liabilities         February 28, 1997

Statement of Operations                     For the five months ended 
                                            February 28, 1997

Statements of Changes in Net Assets         For the five months ended
                                            February 28, 1997 and the year ended
                                            September 30, 1996

Notes to Financial Statements

Independent Auditors' Report                March 31, 1997


<PAGE>

(24)(b)   Exhibits


         (1)    Registrant's Declaration of Trust, as amended
                (the "Declaration of Trust")(1)

         (2)    Registrant's By-Laws (the "By-Laws")(1)
                Amendment to By-Laws, Article 4, Section 4.1(2)

         (3)    Not applicable

         (4)(a) Articles III, V, VI and VIII to the Declaration of Trust(1)
            (b) Article 2, Section 2.5 to the By-Laws(1)

         (5)    Investment Advisory and Management Agreement between Registrant
                and Keystone Investment Management Company (the "Advisory
                Agreement")(3)

         (6)    Distribution Agreement between Registrant and Evergreen Keystone
                Distributor, Inc. (the "Distribution Agreement")(3) 

         (7)    Not applicable

         (8)    Form of Custodian, Fund Accounting and Recordkeeping Agreement
                between Registrant and State Street Bank and Trust Company(4)

         (9)    Form of Sub-Administrator Agreement between Keystone Investment
                Management Company and BISYS Fund Services, Inc.(3)

        (10)    Opinion of Counsel(5)

        (11)    Consent as to use of Independent Auditors' Report(3)

        (12)    Not applicable

        (13)    Subscription Agreement between Registrant and Keystone
                Investment Management Company(6)

        (14)    Not applicable

        (15)    Class Y Distribution Plan(7)

        (16)    Schedules for the computation of total return and current yield
                quotations(3)

        (17)    Financial Data Schedules(3)

        (18)    Not applicable

        (19)    Powers of Attorney(2)

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

        (1) Filed with Post-Effective Amendment No. 7 ("Post-Effective
            Amendment No. 7") to Registration Statement No. 33-42864/811-6412
            (the "Registration Statement") and incorporated by reference herein.
        (2) Filed with Post-Effective Amendment No. 9 ("Post-Effective 
            Amendment No. 9") to the Registration Statement and incorporated by 
            reference herein.
        (3) Filed herewith.
        (4) Filed with Post-Effective Amendment No. 3 ("Post-Effective Amendment
            No.3") to the Registration Statement and is incorporated by
            reference herein.
        (5) Filed with Registrant's Rule 24f-2 Notice (the "24f-2 Notice") for
            the fiscal year ended February 28, 1997 and incorporated by
            reference herein.
        (6) Filed with the Registration Statement and incorporated by
            reference herein.
        (7) Filed with Post-Effective Amendment No. 4 ("Post-Effective Amendment
            No. 4") to the Registration Statement and is incorporated by
            reference herein.

               
Item 25. Persons Controlled by or Under Common Control With Registrant

               Not applicable.

<PAGE>
Item 26. Number of Holders of Securities

                                          Number of Record
Title of Class                      Holders as of May 31, 1997
- --------------                      ----------------------------

Shares of Beneficial                          
Interest,without par value:

       Institutional Service Shares             81                      

Shares of Beneficial                         
Interest, without par value:

       Institutional Shares                      8            

Item 27. Indemnification

         Provisions for the indemnification of Registrant's Trustees and
officers are contained in Article VIII of the Declaration of Trust, a copy of
which was filed with Post-Effective Amendment No. 7 and is incorporated by
reference herein.

         Provisions for the indemnification of Evergreen Keystone Distributor,
Inc., Registrant's principal underwriter, are contained in Section 7 of the
Distribution Agreement, a copy of which is filed herewith.

         Provisions for the indemnification of Keystone Investment Management
Company, Registrant's investment adviser, are contained in Section 5 of the
Advisory Agreement, a copy of which was filed with Post-Effective Amendment No.
7 and incorporated by reference herein.


Item 28. Businesses and Other Connections of Investment Adviser

         The following table lists the names of the various officers and
directors of Keystone Investment Management Company, Registrant's investment
adviser, and their respective positions. For each named individual, the table
lists, for at least the past two fiscal years, (i) any other organizations
(excluding investment advisory clients) with which the officer and/or director
has had or has substantial involvement; and (ii) positions held with such
organizations.



                      LIST OF OFFICERS AND DIRECTORS OF
                     KEYSTONE INVESTMENT MANAGEMENT COMPANY

<TABLE>
<CAPTION>
                                    Position with
                                    Keystone
                                    Investment
Name                                Management Company        Other Business Affiliations
- ----                                ------------------        ---------------------------
<S>                                 <C>                       <C>
Albert H.                           Chairman of               Senior Vice President
Elfner, III*                         the Board,                 First Union Keystone, Inc.                           
                                     Chief Executive            Keystone Asset Corporation      
                                     Officer                  President and Director:                        
                                                                Keystone Trust Company                       
                                                              Director or Trustee:                           
                                                                Evergreen Keystone Investment Services, Inc  
                                                                Evergreen Keystone Service Company         
                                                                Boston Children's Services Associates        
                                                                Middlesex School                             
                                                                Middlebury College                           
                                                              Formerly:                                      
                                                              Chairman of the Board,                         
                                                                Chief Executive Officer,                     
                                                                President and Director:                      
                                                                Keystone Management, Inc.                    
                                                                Keystone Software, Inc. 
                                                                Keystone Capital Corporation
                                                              Trustee or Director:                           
                                                                Neworld Bank                                 
                                                                Robert Van Partners, Inc.                    
                                                                Fiduciary Investment Company, Inc.           
                                                              Formerly Chairman of the Board and Director:   
                                                                Keystone Fixed Income Advisers, Inc.       
                                                                Keystone Institutional Company, Inc.       
                                                            
Herbert L.                         Senior Vice                None
Bishop, Jr.*                         President

Donald C. Dates*                   Senior Vice                None
                                    President

Gilman Gunn*                       Senior Vice                None
                                    President, 
                                    Chief Investment 
                                    Officer

Edward F.                          Senior Vice                Formerly Senior Vice President,          
Godfrey*                            President,                Chief Financial Officer and Treasurer:
                                    Chief Operating             First Union Keystone, Inc.
                                    Officer                     Evergreen Keystone Investment Services, Inc.
                                                              Formerly:
                                                              Treasurer:
                                                                Keystone Institutional Company, Inc.
                                                                Keystone Management, Inc.
                                                                Keystone Software, Inc.
                                                                Fiduciary Investment Company, Inc.
                                                              Treasurer and Director:  
                                                                Hartwell Keystone Advisers, Inc.
                                 
Rosemary D.                        Senior Vice                Senior Vice President:                                         
Van Antwerp*                        President,                  Evergreen Keystone Service Company   
                                    Secretary                   Senior Vice President and Secretary:                         
                                                                Evergreen Keystone Investment Services, Inc.                 
                                                              Formerly:                                                      
                                                              Senior Vice President, General Counsel and Secretary:          
                                                                Keystone Investments, Inc.                                   
                                                              Senior Vice President and General Counsel:                     
                                                                Keystone Institutional Company, Inc.                         
                                                              Senior Vice President, General Counsel and Director:           
                                                                Fiduciary Investment Company, Inc.                           
                                                              Senior Vice President, General Counsel, Director and Secretary:
                                                                Keystone Management, Inc.                                    
                                                                Keystone Software, Inc.                                      
                                                              Senior Vice President and Secretary:                           
                                                                Hartwell Keystone Advisers, Inc.                             
                                                              Vice President and Secretary:                                  
                                                                Keystone Fixed Income Advisers, Inc.                         
                                                              
J. Kevin Kenely*                   Vice President             Vice President:
                                                                Evergreen Keystone Investment Services, Inc.
                                                              Formerly:
                                                              Controller
                                                                Keystone Investments, Inc.
                                                                Keystone Investment Management Company
                                                                Keystone Investment Distributors Company
                                                                Keystone Institutional Company, Inc.
                                                                Keystone Management, Inc.
                                                                Keystone Software, Inc.
                                                                Fiduciary Investment Company, Inc.
                                                              Vice President:
                                                                Keystone Institutional Company, Inc.
                                                                Keystone Management, Inc.
                                                                Keystone Software, Inc.
                                                                Fiduciary Investment Company, Inc.
                                                                Keystone Investments, Inc.

John D. Rogol*                     Vice President             Vice President and
                                                              Controller:
                                                                Evergreen Keystone Investment Services, Inc.
                                                              Treasurer and Vice President:
                                                                Evergreen Keystone Service Company
                                                              Controller:
                                                                Keystone Asset Corporation
                                                              Formerly:
                                                              Controller:   
                                                                Keystone Institutional Company, Inc.
                                                                Keystone Management, Inc.
                                                                Keystone Software, Inc.
                                                                Fiduciary Investment Company, Inc.
                                                              Formerly Vice President and Controller:
                                                                Keystone Investments, Inc. 

Christopher P.                     Senior Vice                None
Conkey*                             President, Chief
                                    Investment Officer

J. Gary Craven*                    Senior Vice                None
                                    President

Richard Cryan*                     Senior Vice                None
                                    President

Maureen E.                         Senior Vice                None
Cullinane*                           President

Betsy Hutchings*                   Senior Vice                None
                                    President

Walter T.                          Senior Vice                None
McCormick*                          President

James F. Angelos**                 Vice President,            None
                                     Chief Compliance
                                     Officer

John Addeo*                        Vice President             None  
                                                                    
Andrew Baldassarre*                Vice President             None  
                                                                    
David Benhaim*                     Vice President             None  
                                                                    
Donald Bisson*                     Vice President             None  
                                                                    
Francis X. Claro*                  Vice President             None  
                                                                    
Kristine R.                        Vice President             None  
Cloyes*                                                             

Patrick T. Bannigan**              Vice President             None

Liu-Er Chen*                       Vice President             None

George E. Dlugos*                  Vice President             None

Antonio T. Docal*                  Vice President             None

Dana E. Erikson*                   Vice President             None
   
Gordon M. Forrester*               Vice President             None
      
Thomas L. Holman*                  Vice President             None   
      
George J. Kimball*                 Vice President             None

JoAnn L. Lyndon*                   Vice President             None

Craig Lewis*                       Vice President             None

John C.                            Vice President             None
Madden, Jr.*

Eleanor H. Marsh*                  Vice President             None

James D. Medvedeff*                Vice President             None

Stanley  M. Niksa*                 Vice President             None

Jonathan A. Noonan*                Vice President             None

Robert E. O'Brien*                 Vice President             None

Margery C. Parker*                 Vice President             None

William H. Parsons*                Vice President             None

Joyce W. Petkovich*                Vice President             None

Gary E. Pzegeo*                    Vice President             None

Harlen R. Sanderling*              Vice President             None

Thomas W. Trickett*                Vice President             None

Kathy K. Wang*                     Vice President             None

Judith A. Warners*                 Vice President             None

Peter Willis*                      Vice President             None

Walter Zagrobski*                  Vice President             None

</TABLE>

     *Located  at Keystone Investment Management  Company, 200 Berkeley Street, 
Boston, Massachusetts 02116.
    **Located at First Union National Bank, 301 South College Street, 
Charlotte, North Carolina 28288


Item 29. Principal Underwriter  (continued).

         (c)  Not applicable.


Item 30. Location of Accounts and Records
      
         First Union Keystone, Inc.
         200 Berkeley Street
         Boston, Massachusetts 02116-5034

         State Street Bank and Trust Company
         1776 Heritage Drive
         Quincy, Massachusetts 02171

         Iron Mountain
         3431 Sharpslot Road
         Swansea, Massachusetts  02277


Item 31. Management Services

         Not applicable.


Item 32. Undertakings

         Upon request and without charge, Registrant hereby undertakes to
         furnish a copy of its latest annual report to shareholders to each
         person to whom a copy of Registrant's prospectus is delivered.

<PAGE>

                                   SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment
Company Act of 1940, the Registrant certifies that it meets all of the
requirements for effectiveness of this amendment to its registration statement
pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused
this amendment to its registration statement to be signed on its behalf by the 
undersigned, thereto duly authorized, in the City of Boston, and in The
Commonwealth of Massachusetts, on the 24th day of June, 1997.

                                       KEYSTONE INSTITUTIONAL
                                       ADJUSTABLE RATE FUND


                                       By:/s/ George S. Bissell
                                          ---------------------------
                                          George S. Bissell
                                          Chief Executive Officer    


Pursuant to the requirements of the Securities Act of 1933, this Amendment to
Registrant's Registration Statement has been signed below by the following
persons in the capacities indicated on the 24th day of June, 1997.

<TABLE>

<S>                                     <C>                                <C>

/s/ George S. Bissell                   /s/ Charles F. Chapin 
- ------------------------                -------------------------          -------------------------
George S. Bissell                       Charles F. Chapin*                 William Walt Pettit
Chairman of the Board of Trustees       Trustee                            Trustee
  and Chief Executive Officer
                                        
/s/ John J. Pileggi                     /s/ K. Dun Gifford                 /s/ David M. Richardson
- -------------------------               -------------------------          -------------------------
John J. Pileggi                         K. Dun Gifford*                    David M. Richardson*
President amd Treasurer (Principal      Trustee                            Trustee
  Financial and Accounting Officer)

/s/ Frederick Amling                                                       
- -------------------------               -------------------------          -------------------------
Frederick Amling*                       James S. Howell                    Russell A. Salton, III MD
Trustee                                 Trustee                            Trustee

/s/ Laurence B. Ashkin                  /s/ Leroy Keith, Jr.                                   
- -------------------------               -------------------------          -------------------------
Laurence B. Ashkin                      Leroy Keith, Jr.*                  Michael S. Scofield  
Trustee                                 Trustee                            Trustee

/s/ Charles A. Austin, III              /s/ F. Ray Keyser, Jr.             /s/ Richard J. Shima
- -------------------------               -------------------------          -------------------------
Charles A. Austin, III*                 F. Ray Keyser, Jr.*                Richard J. Shima*
Trustee                                 Trustee                            Trustee

                                                                           /s/ Andrew J. Simons
- -------------------------               -------------------------          -------------------------
Foster Bam                              Gerald M. McDonnell                 Andrew J. Simons*
Trustee                                 Trustee                            Trustee

/s/ Edwin D. Campbell
- -------------------------               -------------------------
Edwin D. Campbell*                      Thomas L. McVerry
Trustee                                 Trustee

</TABLE>



*By:/s/ Rosemary  D. Van Antwerp
- --------------------------------
Rosemary  D. Van Antwerp**
Attorney-in-Fact


**Rosemary  D. Van Antwerp,  by signing her name  hereto,  does hereby sign this
document on behalf of each of the above-named  individuals pursuant to powers of
attorney duly executed by such persons and attached hereto as Exhibit 24(b)(19).

<PAGE>

                                INDEX TO EXHIBITS


                                                              
Exhibit Number             Exhibit                            
- --------------             -------                            

      1                    Declaration of Trust(1)
   
      2                    By-Laws(1)
                           Amendment to By-Laws(2)

      5                    Advisory Agreement(3)

      6                    Distribution Agreement(4)

      8                    Custodian, Fund Accounting and
                             Recordkeeping Agreement(5)

      9                    Form of Sub-Administrator Agreement(3)

     10                    Opinion of Counsel(5)

     11                    Independent Auditors' Consent(3)

     13                    Subscription Agreement(5)

     15                    Class Y Distribution Plan(6)

     16                    Total Return and Current Yield
                           Schedules(3)

     17                    Financial Data Schedules(filed as Exhibit 27)(3)

     19                    Powers of Attorney(2)

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

(1)  Incorporated by reference  herein  to Post-Effective Amendment No. 7 to
     the Registration Statement.
(2)  Incorporated by reference herein to Post-Effective Amendment No. 9 to the 
     Registration Statement.
(3)  Filed herewith.
(4)  Incorporated  by reference  herein to Post-Effective Amendment No. 3 to
     the Registration Statement.
(5)  Incorporated by reference  herein to the Registration Statement.
(6)  Incorporated by reference  herein to Post-Effective Amendment No. 4 to
     the Registration Statement.





                 INVESTMENT ADVISORY AND MANAGEMENT AGREEMENT

    Agreement made the 11th day of December, 1996, by and between KEYSTONE
INSTITUTIONAL ADJUSTABLE RATE FUND, a Massachusetts business trust (the
"Fund"), and KEYSTONE INVESTMENT MANAGEMENT COMPANY, a Delaware corporation
(the "Adviser").

    WHEREAS, the Fund and the Adviser wish to enter into an agreement setting
forth the terms on which the Adviser will perform certain services for the
Fund.

    THEREFORE, in consideration of the promises and the mutual agreements
hereinafter contained, the Fund and the Adviser agree as follows:

    1. The Fund hereby employs the Adviser to manage and administer the
operation of the Fund, to supervise the provision of services to the Fund by
others and to manage the investment and reinvestment of the assets of the Fund
in conformity with the Fund's investment objectives and restrictions as may be
set forth from time to time in the Fund's then current prospectus and
statement of additional information, if any, and other governing documents,
all subject to the supervision of the Board of Trustees of the Fund, for the
period and on the terms set forth in this Agreement. The Adviser hereby
accepts such employment and agrees during such period, at its own expense, to
render the services and to assume the obligations set forth herein for the
compensation provided herein. The Adviser shall for all purposes herein be
deemed to be an independent contractor and shall, unless otherwise expressly
provided or authorized, have no authority to act for or represent the Fund in
any way or otherwise be deemed an agent of the Fund.

    2. The Adviser shall place all orders for the purchase and sale of
portfolio securities for the account of the Fund with broker-dealers selected
by the Adviser. In executing portfolio transactions and in selecting broker-
dealers, the Adviser will use its best efforts to seek best execution on
behalf of the Fund. In assessing the best execution available for any
transaction, the Adviser shall consider all factors it deems relevant,
including the breadth of the market in the security, the price of the
security, the financial condition and execution capability of the broker-
dealer, and the reasonableness of the commission, if any (all for the specific
transaction and on a continuing basis). In evaluating the best execution
available, and in selecting the broker-dealer to execute a particular
transaction, the Adviser may also consider the brokerage and research services
(as those terms are used in Section 28(e) of the Securities Exchange Act of
1934 (the "1934 Act")) provided to the Fund and/or other accounts over which
the Adviser or an affiliate of the Adviser exercises investment discretion.
The Adviser is authorized to pay a broker-dealer who provides such brokerage
and research services a commission for executing a portfolio transaction for
the Fund which is in excess of the amount of commission another broker-dealer
would have charged for effecting that transaction if, but only if, the Adviser
determines in good faith that such commission was reasonable in relation to
the value of the brokerage and research services provided by such broker-
dealer viewed in terms of that particular transaction or in terms of all of
the accounts over which investment descretion is so exercised.

    3. The Adviser, at its own expense, shall furnish to the Fund office space
in the offices of the Adviser or in such other place as may be agreed upon by
the parties from time to time, all necessary office facilities, equipment and
personnel in connection with its services hereunder, and shall arrange, if
desired by the Fund, for members of the Adviser's organization to serve
without salaries from the Fund as officers or, as may be agreed from time to
time, as agents of the Fund. The Adviser assumes and shall pay or reimburse
the Fund for: (1) the compensation (if any) of the Trustees of the Fund who
are affiliated with the Adviser or with its affiliates, or with any adviser
retained by the Adviser, and of all officers of the Fund as such; (2) all
expenses of the Adviser incurred in connection with its services hereunder;
(3) all charges and expenses of any custodian or depository appointed by the
Fund for the safekeeping of its cash, securities and other property; (4) all
charges and expenses for bookkeeping and auditors; (5) all charges and
expenses of any transfer agents and registrars appointed by the Fund; (6) all
costs of certificates representing shares of the Fund; (7) all fees and
expenses involved in registering and maintaining registrations of the Fund and
of its shares with the Securities and Exchange Commission ("Commission") and
registering or qualifying its shares under state or other securities laws,
including, without limitation, the preparation and printing of registration
statements, prospectuses and statements of additional information for filing
with the Commission and other authorities; (8) expenses of preparing, printing
and mailing prospectuses and statements of additional information to
shareholders of the Fund; (9) all expenses of shareholders' and Trustees'
meetings and of preparing, printing and mailing notices, reports and proxy
materials to shareholders of the Fund; and (10) all charges and expenses of
filing annual and other reports with the Commission and other authorities. The
Fund assumes and shall pay all other expenses of the Fund, including, without
limitation; (1) all fees of all Trustees of the Fund who are not affiliated
with the Adviser or any of its affiliates, or with any adviser retained by the
Adviser; (2) all brokers' fees, expenses and commissions and issue and
transfer taxes chargeable to the Fund in connection with transactions
involving securities and other property to which the Fund is a party; (3) all
taxes and business trust fees payable by the Fund to federal, state or other
governmental agencies; (4) all interest costs of the Fund; (5) all charges and
expenses of legal counsel to the Fund and to the Trustees of the Fund in
connection with routine legal matters relating to the Fund, including, without
limitation, legal services rendered in connection with the Fund's existence,
business trust and financial structure and relations with its shareholders,
registrations and qualifications of securities under federal, state and other
laws and issues of securities, including all charges and expenses of legal
counsel to the Fund in connection with extraordinary matters, including,
without limitation, any litigation involving the Fund, its Trustees, officers,
employees of agents; and (6) all extraordinary expenses and charges of the
Fund. In the event the Adviser provides any of these services or pays any of
these expenses, the Fund will promptly reimburse the Adviser therefor.

    The services of the Adviser to the Fund hereunder are not to be deemed
exclusive, and the Adviser shall be free to render similar services to others.

    4. As compensation for the Adviser's services to the Fund during the
period of this Agreement, the Fund will pay to the Adviser a fee at the annual
rate of 0.30% of the average daily net asset value of the shares of the Fund.

    A pro rata portion of the fee shall be payable in arrears at the end of
each day or calendar month as the Adviser may from time to time specify to the
Fund. If and when this Agreement terminates, any compensation payable
hereunder for the period ending with the date of such termination shall be
payable upon such termination. Amounts payable hereunder shall be promptly
paid when due.

    5. The Adviser shall not be liable for any error of judgment or mistake of
law or for any loss suffered by the Fund in connection with the performance of
this Agreement, except a loss resulting from the Adviser's willful
misfeasance, bad faith, gross negligence or from reckless disregard by it of
its obligations and duties under this Agreement. Any person, even though also
an officer, director, partner, employee, or agent of the Adviser who may be or
become an officer, trustee, employee or agent of the Fund, shall be deemed,
when rendering services to the Fund or acting on any business of the Fund
(other than services or business in connection with the Adviser's duties
hereunder), to be rendering such services to or acting solely for the Fund and
not as an officer, director, partner, employee, or agent or one under the
control or direction of the Adviser even though paid by it. The Fund agrees to
indemnify and hold the Adviser harmless from all taxes, charges, expenses,
assessments, claims and liabilities (including, without limitation,
liabilities arising under the Securities Act of 1933, the 1934 Act, the
Investment Company Act of 1940 (the "1940 Act" ) and any state and foreign
securities and blue sky laws, as amended from time to time) and expenses,
including (without limitation) attorneys' fees and disbursements, arising
directly or indirectly from any action or thing which the Adviser takes or
does or omits to take or do hereunder provided that the Adviser shall not be
indemnified against any liability to the Fund or to its shareholders (or any
expenses incident to such liability) arising out of breach of fiduciary duty
with respect to the receipt of compensation for services, willful misfeasance,
bad faith, or gross negligence on the part of the Adviser in the performance
of its duties, or from reckless disregard by it of its obligations and duties
under the Agreement.

    6. The Fund shall cause its books and accounts to be audited at least once
each year by a reputable independent public accountant or organization of
public accountants who shall render a report to the Fund.

    7. Subject to and in accordance with the Declaration of Trust of the Fund,
the Articles of Incorporation of the Adviser and the governing documents of
any adviser, it is understood that trustees, directors, officers, agents and
shareholders of the Fund or any Adviser are or may be interested in the
Adviser (or any successor thereof) as directors and officers of the Adviser or
its affiliates, as stockholders of Keystone Investments, Inc. or otherwise;
that directors, officers and agents of the Adviser and its affiliates or
stockholders of Keystone Investments, Inc. are or may be interested in the
Fund or any Adviser as trustees, directors, officers, shareholders or
otherwise; that the Adviser (or any such successor) is or may be interested in
the Fund or any such Adviser as shareholder, or otherwise; and that the effect
or any such adverse interests shall be governed by said Declaration of Trust
of the Fund, Articles of Incorporation of the Adviser and governing documents
of any such adviser.

    8. This Agreement shall continue in effect after December 10, 1998, only
so long as (1) such continuance is specifically approved at least annually by
the Board of Trustees of the Fund or by a vote of a majority of the
outstanding voting securities of the Fund, and (2) such renewal has been
approved by the vote of a majority of Trustees of the Fund who are not
interested pesons, as that term is defined in the 1940 Act, of the Adviser or
of the Fund, cast in person at a meeting called for the purpose of voting on
such approval.

    9. On sixty days' written notice to the Adviser, this Agreement may be
terminated without the payment of any penalty at any time by the Board of
Trustees of the Fund or by vote of the holders of a majority of the
outstanding voting securities of the Fund; and on sixty days' written notice
to the Fund, this Agreement may be terminated without the payment of any
penalty at any time by the Adviser. This Agreement shall automatically
terminate upon its assignment (as that term is defined in the 1940 Act). Any
notice under this Agreement shall be given in writing, addressed and
delivered, or mailed postage prepaid, to the other party at the main office of
such party.

    10. This Agreement may be amended at any time by an instrument in writing
executed by both parties hereto or their respective successors, provided that
with regard to amendments of substance such execution by the Fund shall have
been first approved by the vote of the holders of a majority of the
outstanding voting securities of the Fund and by the vote of a majority of
Trustees of the Fund who are not interested persons (as that term is defined
in the 1940 Act) of the Adviser, any predecessor of the Adviser or of the
Fund, cast in person at a meeting called for the purpose of voting on such
approval. A "majority of the outstanding voting securities of the Fund" shall
have, for all purposes of this Agreement, the meaning provided therefor in the
1940 Act.

    11. Any compensation payable to the Adviser hereunder for any period other
than a full year shall be proportionately adjusted.

    12. The provisions of the Agreement shall be governed, construed and
enforced in accordance with the laws of The Commonwealth of Massachusetts.

    13.  A copy of the Declaration of Trust of the Fund is on file with the
Secretary of the Commonwealth of Massachusetts. This instrument is executed on
behalf of the Trustees of the Fund as trustees and not individually, and the
obligations of this instrument are not binding upon the Trustees or holders of
shares of the Fund individually but are binding only upon the assets and
property of the Fund.

    IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement
on the day and year first above written.

                                    KEYSTONE INSTITUTIONAL ADJUSTABLE
                                      RATE FUND

                                    By:  /s/ George S. Bissell
                                        --------------------------------------
                                        Name:  GEORGE S. BISSELL
                                        Title:  Chairman of the Board

                                    KEYSTONE INVESTMENT MANAGEMENT
                                      COMPANY

                                    By:  /s/ Rosemary D. Van Antwerp
                                        --------------------------------------
                                        Name:  ROSEMARY D. VAN ANTWERP
                                        Title:  Senior Vice President




                   KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND

                             DISTRIBUTION AGREEMENT


         AGREEMENT  made as of this 11th day of  December,  1996 by and  between
KEYSTONE  INSTITUTIONAL  ADJUSTABLE  RATE FUND, a  Massachusetts  business trust
("Fund"),  and Evergreen Keystone  Distributor,  Inc., a Delaware corporation ("
Distributor").

         WHEREAS, the Fund wishes to arrange for the sale of shares of
beneficial interest of the Fund ("Shares"); and

         The Distributor wishes to act as a principal underwriter of the Shares:

         NOW,   THEREFORE,   in   consideration   of  the  mutual  promises  and
undertakings  herein provided for, the Fund and the Distributor  hereby agree as
follows:

         1. The Fund appoints the  Distributor  to act as principal un derwriter
of the Shares as an  independent  contractor in such states as the Fund may from
time to time designate and on the terms and conditions herein contained.  Except
as the Fund may from time to time agree,  the Distributor  will act as agent for
the Fund and not as principal.

         2. The Distributor will have the right to obtain subscrip tions for and
to sell  Shares  as agent of the Fund and in so  doing  may  retain  and  employ
representatives to promote distribution of the Shares and may obtain orders from
brokers  or   dealers   or  others  for  sales  of  Shares  to  them.   No  such
representative,  dealer or broker  shall have any  authority to act as agent for
the Fund. The Distributor does not undertake hereby to buy or to find purchasers
for any specific number of Shares.

         3. All subscriptions  and sales of Shares by the Distributor  hereunder
shall be at the net asset value of the Shares in accord ance with the provisions
of the Declaration of Trust, By-laws and the current prospectus and statement of
additional information of the Fund. All orders shall be subject to acceptance by
the Fund,  and the Fund reserves the right in its sole  discretion to reject any
order received. The Fund shall not be liable to anyone for failure to accept any
order.

         4. Payment for Shares shall be in cash,  check,  money order or Federal
Funds  received  by the  Distributor  within  seven  (7) days  after  notice  of
acceptance  of the  purchase  order and notice of the  amount of the  applicable
public  offering price has been given to the  purchaser.  If such payment is not
received  within such seven- day period,  the Fund  reserves the right,  without
further notice,  forth-with to cancel its acceptance of any such order. The Fund
shall pay such issue  taxes as may be  required  by law in  connection  with the
issue of the Shares.

         5. Nothing  herein shall prevent the Fund from issuing,  or issuing and
selling,  or  transferring  Shares  to  holders  of Shares  as  dividends  or as
distributions  of realized  capital  gains  through one or more other  principal
underwriters or otherwise for not less than net asset value.

         6. The  Distributor  shall not make,  or permit  any  representa  tive,
broker or dealer to make, in connection  with any sale or solicitation of a sale
of the Shares, any representations  concerning the Shares except those contained
in the then current prospectus and statement of additional  information covering
the  Shares  and in  printed  information  approved  by the Fund as  information
supplemental to such prospectus and statement of additional information.  Copies
of the then effective prospectus and statement of additional information and any
such  printed  supplemental  information  will be  supplied  by the  Fund to the
Distributor in reasonable quantities upon request.

         7. The  Distributor  covenants  and agrees that it will in all respects
duly  conform  with all state and  federal  laws  applicable  to the sale of the
Shares and will  indemnify and hold  harmless the Fund,  and each person who has
been, is or may hereafter be a Trust ee or officer of the Fund against  expenses
reasonably incurred by any of them in connection with any claim or in connection
with any action,  suit or proceeding to which any of them may be a party,  which
arises out of or is alleged to arise out of any misrepresentation or omission to
state a material  fact, on the part of the  Distributor  or any other person for
whose acts the  Distributor  is  responsible  or is  alleged to be  responsible,
unless such  misrepresentation  or omission  was made in reliance  upon  written
information  furnished by the Fund. The term "expenses" includes amounts paid in
satisfaction   of  judgments  or  in   settlement.   The   foregoing   right  of
indemnification  shall be in addition  to any other  rights to which the Fund or
any such Trustee or officer may be entitled as a matter of law.

         8. The Fund  agrees  to  execute  such  papers  and to do such acts and
things as shall from time to time be reasonably requested by the Distributor for
the purpose of  qualifying  the Shares for sale under the  so-called  "blue sky"
laws of any state or for registering  and  maintaining  the  registration of the
Fund and of the  Shares  under  the  Securities  Act of 1933 and the  Investment
Company Act of 1940.  The  Distributor  shall bear the  expenses  of  preparing,
printing and distributing advertising and sales literature and prospectuses used
by it (apart from expenses of  registering  Shares under the  Securities Act and
Investment  Company Act,  qualifying  Shares for sale under the so-called  "blue
sky" laws of any state and the  preparation  and  printing of  prospectuses  and
statements of additional information and reports required to be filed with the
Securities and Exchange  Commission by such Acts and the direct  expenses of the
issuance of Shares).

         9. This Agreement  shall continue in effect for two years from the date
set  forth  above  and  from  year  to  year  thereafter  if its  terms  and its
continuance  are  approved  annually by a vote of a majority of the Trustees who
are not parties to this Agreement or "interested persons" of any such party cast
in person at a meeting  called for the purpose of voting on such approval and if
such con tinuance is also approved annually by the Board of Trustees of the Fund
or by a vote  of a  majority  of the  outstanding  voting  Shares  of the  Fund;
provided, however, that (1) this Agreement may at any time be terminated without
the  payment  of any  penalty  by the Fund on 60  days'  written  notice  to the
Distributor,  (2) this Agreement shall immediately terminate in the event of its
assignment  (within the meaning of the  Investment  Company Act of 1940) and (3)
this  Agreement may be terminated by the  Distributor on 90 days' written notice
to the  Fund.  Any  notice  under  this  Agreement  shall be  given in  writing,
addressed and delivered, or mailed postpaid, to the other party at any office of
such party.  This  Agreement may be amended at any time by mutual consent of the
parties.

         10. This  Agreement  shall be construed in accordance  with the laws of
The Commonwealth of Massachusetts.

         11. A copy of the  Declaration of Trust of the Fund is on file with the
Secretary of The Commonwealth of  Massachusetts  and notice is hereby given that
this  instrument  is executed on behalf of the  Trustees of the Fund as Trustees
and not individually and that the obligations of this instrument are not binding
upon the Trustees or holders of shares of the Fund  individually but are binding
only upon the assets and property of the Fund.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their  respective  officers  thereunto  duly  authorized  at Boston,
Massachusetts, on the day and year first written above.


                                     KEYSTONE INSTITUTIONAL ADJUSTABLE
                                     RATE FUND


                                     By: /s/ George S. Bissell
                                        -------------------------------


                                     EVERGREEN KEYSTONE DISTRIBUTOR, INC.


                                     By: /s/ J. David Huber
                                        -------------------------------



                           FORM OF SUB-ADMINISTRATOR AGREEMENT

                  This Sub-Administrator Agreement is made as of this 1st day of
January,  1997  between  Keystone  Investment  Management  Company,  a  Delaware
corporation (herein called "KIMCO"),  and BISYS Fund Service Limited Partnership
DBA as BISYS Fund Services,  an Ohio Limited  Partnership  Corporation  (herein
called  "BISYS").

                  WHEREAS,  KIMCO has been  appointed as  investment  adviser to
certain open-end  management  investment  companies,  or to one or more separate
investment series thereof, listed on Schedule A, as the same may be amended from
time to time to reflect  additions  or  deletions  of such  companies or series,
which are registered under the Investment Company Act of 1940 (the "Funds");

                  WHEREAS,  in its capacity as investment  adviser to the Funds,
KIMCO has the  obligation  to  provide,  or engage  others to  provide,  certain
administrative services to the Funds; and

                  WHEREAS, KIMCO desires to retain BISYS as Sub-Administrator to
the Funds for the  purpose  of  providing  the Funds  with  personnel  to act as
officers of the Funds and to provide certain administrative services in addition
to those provided by KIMCO ("Sub-Administrative Services"), and BISYS is willing
to render such services;

                  NOW,  THEREFORE,  in  consideration of the premises and mutual
covenants set forth herein, the parties hereto agree as follows:

1.   Appointment   of   Sub-Administrator.   KIMCO  hereby   appoints  BISYS  as
Sub-Administrator  for the Funds on the terms and  conditions  set forth in this
Agreement and BISYS hereby  accepts such  appointment  and agrees to perform the
services and duties set forth in Section 2 of this Agreement in consideration of
the compensation provided for in Section 4 hereof.

2. Services and Duties. As Sub-Administrator, and subject to the supervision and
control  of KIMCO  and the  Trustees  or  Directors  of the  Funds,  BISYS  will
hereafter provide facilities, equipment and personnel to carry out the following
Sub-Administrative  services  to assist in the  operation  of the  business  and
affairs of the Funds:

         (a)  provide  individuals   reasonably  acceptable  to  the  Funds  for
         nomination,  appointment  or  election as officers of the Funds and who
         will be  responsible  for the  management  of  certain  of each  Fund's
         affairs as determined from time to time by the Trustees or Directors of
         the Funds;

         (b) review  filings with the  Securities  and Exchange  Commission  and
         state  securities  authorities that have been prepared on behalf of the
         Funds by the  administrator  and take such actions as may be reasonably
         requested by the administrator to effect such filings;

         (c) verify, authorize and transmit to the custodian, transfer agent and
         dividend  disbursing agent of each Fund all necessary  instructions for
         the disbursement of cash, issuance of

D:\JPW\LIEBER\AGREMENT\SUBADMIN\SUBADM1.KEY
                                                    1

<PAGE>



         shares, tender and receipt of portfolio securities, payment of expenses
         and payment of dividends; and

         (d)  advise the Trustees or Directors of the Funds on matters 
         concerning the Funds and their affairs.

         BISYS may, in  addition,  agree in writing to perform  additional
Sub-Administrative Services for the Funds. Sub-Administrative Services shall not
include investment advisory services or any duties, functions, or services to be
performed  for the  Funds by their  distributor,  custodian  or  transfer  agent
pursuant to their agreements with the Funds.

3.  Expenses.  BISYS shall be  responsible  for  expenses  incurred in providing
office  space,  equipment  and  personnel as may be necessary or  convenient  to
provide the  Sub-Administrative  Services to the Funds.  KIMCO  and/or the Funds
shall be responsible  for all other expenses  incurred by BISYS on behalf of the
Funds  pursuant to this Agreement at the direction of KIMCO,  including  without
limitation postage and courier expenses,  printing expenses,  registration fees,
filing  fees,  fees of  outside  counsel  and  independent  auditors,  insurance
premiums,  fees  payable  to  Trustees  or  Directors  who are not  Furman  Selz
employees, and trade association dues.

4. Compensation.  For the  Sub-Administrative  Services  provided,  KIMCO hereby
agrees to pay and BISYS hereby agrees to accept as full  compensation  for
its services rendered hereunder a  sub-administrative  fee,calculated  daily and
payable  monthly at an annual  rate  based on the  aggregate  average  daily net
assets of the Funds,  or separate  series  thereof,  set forth on Schedule A and
determined in accordance with the table below.

                                   Aggregate Daily Net Assets of Funds For
                                   Which KIMCO, Evergreen Asset Management
         Sub-Administrative        Corp., First Union National Bank of North
         Fee as a % of             Carolina or any Affiliates Thereof Serve as
         Average Annual            Investment Adviser or Administrator And For
         Daily Net Assets          Which BISYS Serves as Sub-Administrator

            .0100%                  on the first $7 billion
            .0075%                  on the next $3 billion
            .0050%                  on the next $15 billion
            .0040%                  on assets in excess of $25 billion

5.  Indemnification  and  Limitation of Liability of BISYS.  The duties of BISYS
shall be  limited  to those  expressly  set forth  herein or later  agreed to in
writing by Furman Selz,  and no implied duties are assumed by or may be asserted
against BISYS hereunder.  BISYS shall not be liable for any error of judgment or
mistake of law or for any loss  arising  out of any act or  omission in carrying
out its duties hereunder, except a loss resulting from willful misfeasance,  bad
faith or negligence in the  performance of its duties,  or by reason of reckless
disregard of its  obligations and duties  hereunder,  except as may otherwise be
provided under provisions of applicable law which cannot be waived or

D:\JPW\LIEBER\AGREMENT\SUBADMIN\SUBADM1.KEY


                                                    2

<PAGE>



modified  hereby.  (As used in this  Section,  the term  "BISYS"  shall  include
partners,  officers,  employees and other agents of BISYS as well as Furman Selz
itself)

        So long as BISYS  Selz  acts in good  faith and with due  diligence  and
without  negligence,  KIMCO shall  indemnify BISYS and hold it harmless from any
and all actions, suits and claims, and from any and all losses,  damages, costs,
charges,  reasonable  counsel  fees and  disbursements,  payments,  expenses and
liabilities  (including reasonable  investigation  expenses) arising directly or
indirectly  out of  BISYS'  actions  taken or  nonactions  with  respect  to the
performance  of services  hereunder.  The indemnity and defense  provisions  set
forth herein shall  survive the  termination  of this  Agreement for a period of
three years.

         The rights hereunder shall include the right to reasonable  advances of
defense  expenses  in the event of any  pending or  threatened  litigation  with
respect to which  indemnification  hereunder may ultimately be merited. In order
that the indemnification  provision contained herein shall apply, however, it is
understood  that if in any case KIMCO may be asked to  indemnify  or hold Furman
Selz harmless,  KIMCO shall be fully and promptly advised of all pertinent facts
concerning the situation in question,  and it is further  understood that Furman
Selz  will  use all  reasonable  care to  identify  and  notify  KIMCO  promptly
concerning  any  situation  which  presents  or appears  likely to  present  the
probability of such a claim for indemnification against KIMCO.

         KIMCO shall be entitled to  participate at its own expense or, if it so
elects,  to assume the defense of any suit brought to enforce any claims subject
to this indemnity  provision.  If KIMCO elects to assume the defense of any such
claim,   the  defense  shall  be  conducted  by  counsel  chosen  by  KIMCO  and
satisfactory to BISYS, whose approval shall not be unreasonably withheld. In the
event that KIMCO  elects to assume the  defense of any suit and retain  counsel,
BISYS shall bear the fees and expenses of any additional counsel retained by it.
If KIMCO  does not elect to assume  the  defense  of a suit,  it will  reimburse
Furman Selz for the  reasonable  fees and  expenses  of any counsel  retained by
BISYS.

         BISYS may apply to KIMCO at any time for  instructions  and may consult
counsel for KIMCO or its own counsel and with accountants and other experts with
respect to any matter arising in connection with BISYS' duties,  and BISYS shall
not be liable or accountable for any action taken or omitted by it in good faith
in  accordance  with  such  instruction  or with the  opinion  of such  counsel,
accountants or other experts.

         Any person, even though also an officer, director, partner, employee or
agent of BISYSs, who may be or become an officer,  trustee, employee or agent of
the Funds,  shall be deemed,  when rendering services to a Fund or acting on any
business  of a Fund (other than  services  or  business in  connection  with the
duties of BISYS hereunder) to be rendering such services to or acting solely for
the Fund and not as an  officer,  director,  partner,  employee  or agent or one
under the control or direction of BISYS even though paid by BISYS.





D:\JPW\LIEBER\AGREMENT\SUBADMIN\SUBADM1.KEY
                                                    3

<PAGE>



6.       Duration and Termination.

         (a) The initial  term of this  Agreement  (the  "Initial  Term")  shall
commence on the date this Agreement is executed by both parties,  shall continue
until April 30, 1998,  and shall continue in effect for a Fund from year to year
thereafter,  provided it is approved, at least annually, by a vote of a majority
of  Directors/Trustees  of the Funds,  including a majority of the disinterested
Directors/Trustees.  Notwithstanding  the foregoing,  this Agreement  shall only
become  effective  if  (i)  Keystone  Investments,  the  parent  of  KIMCO,  has
previously  been acquired by First Union  National Bank of North  Carolina,  and
(ii) the  Funds  have  appointed  Evergreen  Funds  Distributor,  Inc.  as their
Principal  Underwriter.  In the event of any breach of this  Agreement by either
party,  the  non-breaching  party shall notify the breaching party in writing of
such breach and upon receipt of such notice,  the breaching  party shall have 45
days to remedy the breach except in the case of a breach resulting from fraud or
other acts which  materially  and adversely  affects the operations or financial
position of the Funds.  In the event any material  breach is not remedied within
such  time  period,  the  nonbreaching  party  may  immediately  terminate  this
Agreement.

         Notwithstanding  the foregoing,  after such  termination for so long as
BISYS, with the written consent of KIMCO, in fact continues to perform any
one or more of the services  contemplated  by this  Agreement or any schedule or
exhibit hereto,  the provisions of this Agreement,  including without limitation
the provisions  dealing with  indemnification,  shall continue in full force and
effect.  Compensation  due BISYS and unpaid by KIMCO upon such termination
shall be immediately due and payable upon and notwithstanding  such termination.
Furman  Selz shall be  entitled  to  collect  from  KIMCO,  in  addition  to the
compensation  described herein, all costs reasonably incurred in connection with
Furman  Selz's  activities  in effecting  such  termination,  including  without
limitation,  the  delivery to the Funds  and/or  their  designees of each Fund's
property,  records,  instruments and documents,  or any copies  thereof.  To the
extent  that  Furman  Selz  may  retain  in its  possession  copies  of any Fund
documents or records  subsequent to such  termination  which copies had not been
requested by or on behalf of a Fund in connection with the  termination  process
described  above,  BISYS will provide such Fund with reasonable  access to
such  copies;  provided,  however,  that,  in  exchange  therefor,  KIMCO  shall
reimburse BISYS for all costs reasonably incurred in connection therewith.

         (b) Subject to (c) below, this Agreement may be terminated at any time,
without  payment of any  penalty,  on sixty (60) day's prior  written  notice by
KIMCO, or by BISYS and, with respect to one or more of the Funds a vote of
a majority of such Fund's or Funds' Directors/Trustees.

         (c) If,  during the first six months this  Agreement is in effect it is
terminated  for a Fund or Funds in  accordance  with (b)  above,  for any reason
other than a material  breach of this  Agreement,  the merger of a Fund or Funds
for which KIMCO,  Evergreen Asset Management Corp., First Union National Bank of
North Carolina or any affiliates thereof act as investment adviser, or any other
event that leads to the  termination  of the  existence of a Fund or Funds,  and
BISYS is replaced as  sub-administrator,  then KIMCO shall make a one-time
cash payment to BISYS equal to the unpaid  balance due BISYS for the
first six-months this Agreement in effect, assuming for

D:\JPW\LIEBER\AGREMENT\SUBADMIN\SUBADM1.KEY


                                                    4

<PAGE>



purposes of  calculation of the payment that the asset level of each Fund on the
date BISYS is replaced will remain  constant for the balance of such term.  Once
this Agreement has been in effect for more than six months from the commencement
date, this paragraph (c) shall be null, void and of no further effect.

7. Amendment. No provision of this Agreement may be changed, waived,  discharged
or terminated  orally,  but only by an instrument in writing signed by the party
against which an enforcement of the change, waiver,  discharge or termination is
sought.

8. Notices. Notices of any kind to be given to KIMCO hereunder by BISYS shall be
in  writing  and  shall be duly  given if  delivered  to KIMCO at the  following
address:  Keystone Investment  Management Company, 200 Berkeley Street,  Boston,
Massachusetts  02116 ATT:  General  Counsel.  Notices of any kind to be given to
Furman Selz hereunder by EAMC or the Funds shall be in writing and shall be duly
given  if  delivered  to  BISYS  at 3435  Stelzer  Road,  Columbus,  Ohio  43219
Attention: George O. Martinez, Senior Vice President.

9.  Limitation  of  Liability.  BISYS is hereby  expressly  put on notice of the
limitations of liability as set forth in the  Declarations of Trust of the Funds
that are  Massachusetts  business  trusts or series  thereof and agrees that the
obligations pursuant to this Agreement of a particular Fund be limited solely to
the assets of that particular Fund, and BISYS shall not seek satisfaction of any
such obligation from the assets of any other Fund, the shareholders of any Fund,
the Trustees, officers, employees or agents of any Fund, or any of them.

10.  Miscellaneous.  The captions in this Agreement are included for convenience
of reference only and in no way define or delimit any of the  provisions  hereof
or  otherwise  affect their  construction  or effect.  If any  provision of this
Agreement  shall  be held or  made  invalid  by a  court  or  regulatory  agency
decision,  statute, rule or otherwise, the remainder of this Agreement shall not
be  affected  thereby.  Subject  to the  provisions  of  Section 5 hereof,  this
Agreement  shall be binding  upon and shall  inure to the benefit of the parties
hereto and their  respective  successors  and shall be governed by New York law;
provided,   however,  that  nothing  herein  shall  be  construed  in  a  manner
inconsistent  with the Investment  Company Act of 1940 or any rule or regulation
promulgated by the Securities and Exchange Commission thereunder.





D:\JPW\LIEBER\AGREMENT\SUBADMIN\SUBADM1.KEY
                                                    5

<PAGE>



         IN WITNESS  WHEREOF,  the parties hereto have caused this instrument to
be  executed  by their  officers  designated  below as of the day and year first
above written.

                                        KEYSTONE INVESTMENT MANAGEMENT COMPANY

                                        By______________________________________
                                       
                                        its:____________________________________

Attest:________________________

                                        BISYS FUND SERVICES, INC.

                                        By______________________________________
                                        
                                        its_____________________________________

Attest:________________________

D:\JPW\LIEBER\AGREMENT\SUBADMIN\SUBADM1.KEY


                                                    6

<PAGE>



                                   SCHEDULE A
                           SUB-ADMINISTRATOR AGREEMENT

Keystone America  Hartwell  Emerging Growth Fund ("Emerging  Growth")  
Keystone Balanced Fund II ("Balanced Fund") 
Keystone Capital Preservation and 
     Income Fund ("Capital  Preservation and Income")  
Keystone Emerging Markets Fund ("Emerging Markets")  
Keystone Fund For Total Return ("Total Return")  
Keystone Fund of the Americas ("Fund of the Americas")  
Keystone Global  Opportunities  Fund ("GlobalOpportunities")   
Keystone Global   Resources  and  Development  Fund  ("GlobalResources")  
Keystone Government  Securities  Fund  ("Government   Securities")
Keystone Intermediate Term Bond Fund ("Intermediate Term") 
Keystone Liquid Trust("Liquid  Trust")  Keystone Omega Fund  ("Omega")  
Keystone Small Company Growth Fund II ("Small Company Growth") 
Keystone State Tax Free Fund ("State Tax Free")
     - Florida Tax Free Fund ("Florida Tax Free") 
     -  Massachusetts  Tax Free  Fund  ("Massachusetts   Tax  Free")  
     -  Pennsylvania   Tax  Free  Fund ("Pennsylvania  Tax Free") 
     - New York  Insured Tax Free Fund ("New York Insured")
Keystone State  Tax Free  Fund-Series  II  ("State  Tax Free  II") 
     - California Insured Tax Free Fund  ("California  Insured") 
     - Missouri Tax Free Fund ("Missouri Tax Free")
Keystone Strategic  Income Fund ("Strategic  Income")  
Keystone Tax Free Income Fund ("Tax Free  Income")  
Keystone Quality  Bond Fund (B-1)  ("B-1")  Keystone
Diversified Bond Fund (B-2) ("B-2") 
Keystone High Income Bond Fund (B-4) ("B-4")
Keystone Balanced  Fund (K-1)  ("K-1")  
Keystone Strategic  Growth  Fund (K-2)("K-2")  
Keystone Growth and Income Fund (S-1) ("S-1")  
Keystone Mid-Cap Growth Fund (S-3) ("S-3")  
Keystone Small Company  Growth Fund (S-4) ("S-4")  
Keystone Institutional  Adjustable Rate Fund ("Adjustable  Rate") 
Keystone Institutional Trust  ("Institutional")  
Keystone International  Fund  Inc.  ("International")
Keystone Precious Metals Holdings,  Inc.  ("Precious  Metals") 
Keystone Tax Free Fund ("Tax Free")

D:\JPW\LIEBER\AGREMENT\SUBADMIN\SUBADM1.KEY
                                                    







                        CONSENT OF INDEPENDENT AUDITORS


The Trustees and Shareholders
Keystone Institutional Adjustable Rate Fund

          We consent to the use of our report dated March 31, 1997 incorporated
by reference herein and to the references to our firm under the caption
"FINANCIAL HIGHLIGHTS" in the prospectus.
 

                                                  /s/ KPMG Peat Marwick LLP
                                                  KPMG Peat Marwick LLP




Boston, Massachusetts
June 24, 1997

<TABLE>
<S>                          <C>     <C>         <C>          <C>              <C>             <C>
                                   
KIARF-Y                      MTD        YTD      ONE YEAR     THREE YEAR       THREE YEAR        FIVE YEAR       
                28-Feb-97                                    TOTAL RETURN      COMPOUNDED      TOTAL RETURN      

with cdsc                    N/A        N/A        N/A            N/A              N/A              N/A          
W/O CDSC                       0.50%      1.11%       6.77%           17.49%            5.99%           17.49%   

Beg dates                 31-Jan-97  31-Dec-96   29-Feb-96        23-May-94        23-May-94        23-May-94    
Beg Value (no load)          11,690     11,620      11,004           10,000           10,000           10,000    
End Value (W/O CDSC)         11,749     11,749      11,749           11,749           11,749           11,749    
End Value (with cdsc)                   11,400      11,419           11,649           11,649           11,749    
beg nav                        9.72       9.71        9.67             9.73             9.73             9.73    
end nav                        9.72       9.72        9.72             9.72             9.72             9.72    
shares originally purhased 1,202.69   1,196.66    1,137.99         1,027.75         1,027.75         1,027.75    



TIME                                                                                    2.77                     


<C>               <C>              <C>
 FIVE YEAR        TEN YEAR         TEN YEAR             
COMPOUNDED      TOTAL RETURN      COMPOUNDED            
                                                        
    N/A              N/A              N/A               
         5.99%           17.49%            5.99%        
                                                        
    23-May-94        23-May-94        23-May-94         
       10,000           10,000           10,000         
       11,749           11,749           11,749         
       11,749           11,749           11,749         
         9.73             9.73             9.73         
         9.72             9.72             9.72         
     1,027.75         1,027.75         1,027.75         
                                                        
                                                        
                                                        
         2.77                              2.77         
                                                        
</TABLE>
<TABLE>
<S>                          <C>        <C>      <C>         <C>               <C>            <C>

KIARF-Z                      MTD        YTD      ONE YEAR     THREE YEAR       THREE YEAR        FIVE YEAR       
                28-Feb-97                                    TOTAL RETURN      COMPOUNDED      TOTAL RETURN      
                                                                                             *** n/a till 10/1***
with cdsc                    N/A        N/A        N/A            N/A              N/A              N/A          
W/O CDSC                       0.53%      1.05%       6.92%           17.79%            5.61%           29.61%   

Beg dates                 31-Jan-97  31-Dec-96   29-Feb-96        28-Feb-94        28-Feb-94        28-Feb-92    
Beg Value (no load)          13,196     13,127      12,406           11,262           11,262           10,234    
End Value (W/O CDSC)         13,265     13,265      13,265           13,265           13,265           13,265    
End Value (with cdsc)                   12,871      12,893           13,154           13,154           13,265    
beg nav                        9.71       9.71        9.67             9.87             9.87             9.93    
end nav                        9.71       9.71        9.71             9.71             9.71             9.71    
shares originally purhased 1,358.98   1,351.88    1,282.95         1,141.01         1,141.01         1,030.66    


TIME                                                                                       3                     

<C>             <C>              <C>
 FIVE YEAR        TEN YEAR         TEN YEAR       
COMPOUNDED      TOTAL RETURN      COMPOUNDED      
 n/a till 10/1*** n/a till 10/1*** n/a till 10/1  
    N/A              N/A              N/A         
         5.32%           32.65%            5.35%  
                                                  
    28-Feb-92        01-Oct-91        01-Oct-91   
       10,234           10,000           10,000   
       13,265           13,265           13,265   
13264.9296389           13,265    13264.9296389   
         9.93            10.00               10   
         9.71             9.71             9.71   
     1,030.66         1,000.00         1,000.00   
                                                  
                                                  
            5                      5.4166666667   
                                                  
</TABLE>


<TABLE>
<CAPTION>
                                                                 
      A                                                           
              PRICING DATE   02/28/97                        
                             --------                                            
                                                                                 
                                                                                 
              30 DAY YTM     6.33794%                                            
                             --------                             

- -------------------------------------------------------------------------------------
                                                                                  
     PRICE   ST VARIABLE   LONG TERM       GAIN/LOSS          TOTAL            DIV     
     DATE      INCOME        INCOME                           INCOME         FACTOR    
     <S>       <C>            <C>           <C>                 <C>           <C>      
- -------------------------------------------------------------------------------------
 1   01/30/97             15,868.23                         15,868.23            87.429  
 2   01/31/97             15,868.23                         15,868.23            95.160  
 3   02/01/97             15,169.76                         15,169.76            95.160  
 4   02/02/97             15,169.76                         15,169.76            95.160  
 5   02/03/97             14,552.34                         14,552.34            95.133  
 6   02/04/97             14,557.12                         14,557.12            95.132  
 7   02/05/97             14,556.50                         14,556.50            95.132  
 8   02/06/97             14,556.88                         14,556.88            95.132  
 9   02/07/97             14,556.27                         14,556.27            95.132  
10   02/08/97             14,556.27                         14,556.27            95.132  
11   02/09/97             14,556.27                         14,556.27            95.132  
12   02/10/97             14,552.21                         14,552.21            95.132  
13   02/11/97             14,555.79                         14,555.79            95.132  
14   02/12/97             14,279.40                         14,279.40            95.132  
15   02/13/97             14,532.55                         14,532.55            95.132  
16   02/14/97             14,135.45                         14,135.45            95.132  
17   02/15/97             14,135.45                         14,135.45            95.132  
18   02/16/97             14,135.45                         14,135.45            95.132  
19   02/17/97             14,135.45                         14,135.45            95.132  
20   02/18/97             14,441.30                         14,441.30            95.132  
21   02/19/97             14,541.80                         14,541.80            95.132  
22   02/20/97             14,540.60                         14,540.60            95.132  
23   02/21/97             14,538.65                         14,538.65            95.132  
24   02/22/97             14,538.65                         14,538.65            95.132  
25   02/23/97             14,538.65                         14,538.65            95.132  
26   02/24/97             14,359.94                         14,359.94            95.145  
27   02/25/97             14,552.17                         14,552.17            95.145  
28   02/26/97             12,463.25                         12,463.25            95.145  
29   02/27/97             14,369.61                         14,369.61            95.145  
30   02/28/97             14,294.87       -33,156.29       -18,861.42            95.14-  
                                                                              
                                                        
              0.00  0.00 435,608.87  0.00 -33,156.29 0.00  402,452.58      2,846.43032932
</TABLE>

TOTAL INCOME FOR PERIOD           381,659.77 
TOTAL EXPENSES FOR PERIOD          17,408.96 
AVERAGE SHARES OUTSTANDING      7,195,768.33 
LAST PRICE DURING PERIOD                9.71 

<TABLE>
<CAPTION>
 
- --------------------------------------------------------------------------------------------   
                                               
   ADJUSTED   DAILY       DAILY          DAILY      ACCUMULATED   ACCUMULATED    ACCUMULATED
    INCOME   EXPENSES     SHARES         PRICE         INCOME       EXPENSES       SHARES
     <S>       <C>         <C>            <C>           <C>         <C>              <C>                                            
- --------------------------------------------------------------------------------------------
 1  13,873.51  574.48   7,196,082.060      9.71      13,873.51        574.48   7,196,082.060
 2  15,100.24  616.00   7,196,082.060      9.71      28,973.75      1,190.48  14,392,164.120
 3  14,435.58  616.00   7,196,082.060      9.71      43,409.33      1,806.49  21,588,246.180
 4  14,435.58  616.00   7,196,082.060      9.71      57,844.91      2,422.49  28,784,328.240
 5  13,844.09  574.43   7,195,720.062      9.72      71,689.00      2,996.92  35,980,048.302
 6  13,848.62  574.93   7,195,720.062      9.72      85,537.62      3,571.85  43,175,768.364
 7  13,848.03  575.11   7,195,720.062      9.72      99,385.65      4,146.96  50,371,488.426
 8  13,848.39  575.11   7,195,720.062      9.73     113,234.04      4,722.07  57,567,208.488
 9  13,847.80  575.39   7,195,720.062      9.73     127,081.84      5,297.46  64,762,928.550
10  13,847.80  575.39   7,195,720.062      9.73     140,929.64      5,872.86  71,958,648.612
11  13,847.80  575.39   7,195,720.062      9.73     154,777.44      6,448.25  79,154,368.674
12  13,843.94  575.51   7,195,720.062      9.73     168,621.38      7,023.76  86,350,088.736
13  13,847.35  575.55   7,195,720.062      9.73     182,468.73      7,599.31  93,545,808.798
14  13,584.41  575.54   7,195,720.062      9.73     196,053.14      8,174.85 100,741,528.860
15  13,825.24  575.47   7,195,720.062      9.73     209,878.38      8,750.32 107,937,248.922
16  13,447.47  575.56   7,195,720.062      9.73     223,325.85      9,325.88 115,132,968.984
17  13,447.47  575.56   7,195,720.062      9.73     236,773.32      9,901.43 122,328,689.046
18  13,447.47  575.56   7,195,720.062      9.73     250,220.79     10,476.99 129,524,409.108
19  13,447.47  575.56   7,195,720.062      9.73     263,668.26     11,052.54 136,720,129.170
20  13,738.43  575.66   7,195,720.062      9.73     277,406.69     11,628.20 143,915,849.232
21  13,834.04  575.69   7,195,720.062      9.73     291,240.73     12,203.89 151,111,569.294
22  13,832.89  603.18   7,195,720.062      9.73     305,073.62     12,807.07 158,307,289.356
23  13,831.04  575.58   7,195,720.062      9.73     318,904.66     13,382.65 165,503,009.418
24  13,831.04  575.58   7,195,720.062      9.73     332,735.70     13,958.24 172,698,729.480
25  13,831.04  575.58   7,195,720.062      9.73     346,566.74     14,533.82 179,894,449.542
26  13,662.86  575.59   7,195,720.062      9.73     360,229.60     15,109.41 187,090,169.604
27  13,845.76  575.27   7,195,720.062      9.73     374,075.36     15,684.68 194,285,889.666
28  11,858.24  575.20   7,195,720.062      9.72     385,933.60     16,259.88 201,481,609.728
29  13,672.06  574.63   7,195,720.062      9.71     399,605.66     16,834.51 208,677,329.790
30  17,945.89  574.45   7,195,720.062      9.71     381,659.77     17,408.96 215,873,049.852
                                                 
                                                                             
   381,659.77 17,408.96 7,195,768.328          
</TABLE>
                                              
<TABLE>
<CAPTION>
    B

        PRICING DATE    02/28/97
                        --------

          30 DAY YTM    6.07529%                        
                        --------
- -------------------------------------------------------------------------------------------

      PRICE   ST VARIABLE      LONG TERM                        TOTAL             DIV
      DATE     INCOME            INCOME                         INCOME           FACTOR
      <S>       <C>               <C>                             <C>               <C>   
- -------------------------------------------------------------------------------------------
 1   01/30/97            0.00  15,868.23          0.00  0.00    15,868.23       12.57051160
 2   01/31/97            0.00  15,868.23          0.00  0.00    15,868.23        4.83977030
 3   02/01/97            0.00  15,169.76          0.00  0.00    15,169.76        4.83977030
 4   02/02/97            0.00  15,169.76          0.00  0.00    15,169.76        4.83977030
 5   02/03/97            0.00  14,552.34          0.00  0.00    14,552.34        4.86693700
 6   02/04/97            0.00  14,557.12          0.00  0.00    14,557.12        4.86704843
 7   02/05/97            0.00  14,556.50          0.00  0.00    14,556.50        4.86704704
 8   02/06/97            0.00  14,556.88          0.00  0.00    14,556.88        4.86705183
 9   02/07/97            0.00  14,556.27          0.00  0.00    14,556.27        4.86705921
10   02/08/97            0.00  14,556.27          0.00  0.00    14,556.27        4.86705921
11   02/09/97            0.00  14,556.27          0.00  0.00    14,556.27        4.86705921
12   02/10/97            0.00  14,552.21          0.00  0.00    14,552.21        4.86706308
13   02/11/97            0.00  14,555.79          0.00  0.00    14,555.79        4.86706746
14   02/12/97            0.00  14,279.40          0.00  0.00    14,279.40        4.86707235
15   02/13/97            0.00  14,532.55          0.00  0.00    14,532.55        4.86707760
16   02/14/97            0.00  14,135.45          0.00  0.00    14,135.45        4.86708175
17   02/15/97            0.00  14,135.45          0.00  0.00    14,135.45        4.86708175
18   02/16/97            0.00  14,135.45          0.00  0.00    14,135.45        4.86708175
19   02/17/97            0.00  14,135.45          0.00  0.00    14,135.45        4.86708175
20   02/18/97            0.00  14,441.30          0.00  0.00    14,441.30        4.86709521
21   02/19/97            0.00  14,541.80          0.00  0.00    14,541.80        4.86709975
22   02/20/97            0.00  14,540.60          0.00  0.00    14,540.60        4.86710000
23   02/21/97            0.00  14,538.65          0.00  0.00    14,538.65        4.86711010
24   02/22/97            0.00  14,538.65          0.00  0.00    14,538.65        4.86711010
25   02/23/97            0.00  14,538.65          0.00  0.00    14,538.65        4.86711010
26   02/24/97            0.00  14,359.94          0.00  0.00    14,359.94        4.85434387
27   02/25/97            0.00  14,552.17          0.00  0.00    14,552.17        4.85434101
28   02/26/97            0.00  12,463.25          0.00  0.00    12,463.25        4.85434626
29   02/27/97            0.00  14,369.61          0.00  0.00    14,369.61        4.85435069
30   02/28/97            0.00  14,294.87    -33,156.29  0.00   -18,861.42        4.85397197
                                                                   

                0.00     0.00 435,608.87    -33,156.29  0.00   402,452.58       153.5696710
</TABLE>
<PAGE>

TOTAL INCOME FOR PERIOD            20,792.78
TOTAL EXPENSES FOR PERIOD           1,855.63
AVERAGE SHARES OUTSTANDING        389,666.59
LAST PRICE DURING PERIOD                9.72

<TABLE>
<CAPTION>

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

   ADJUSTED   DAILY      DAILY           DAILY    ACCUMULATED   ACCUMULATED  ACCUMULATED
    INCOME   EXPENSES    SHARES          PRICE      INCOME       EXPENSES      SHARES
    <S>        <C>       <C>               <C>         <C>          <C>           <C>
- ----------------------------------------------------------------------------------------
 1   1,994.72    151.43  1,034,598.630      9.71     1,994.72       151.43    1,034,598.630
 2     767.99    100.65    365,970.934      9.72     2,762.71       252.08    1,400,569.564
 3     734.18    100.65    365,970.934      9.72     3,496.89       352.72    1,766,540.498
 4     734.18    100.65    365,970.934      9.72     4,231.07       453.37    2,132,511.432
 5     708.25     53.76    367,790.756      9.73     4,939.32       507.13    2,500,302.188
 6     708.50     53.92    367,790.756      9.73     5,647.82       561.05    2,868,092.944
 7     708.47     53.94    367,790.756      9.73     6,356.29       614.99    3,235,883.700
 8     708.49     53.94    367,790.756      9.74     7,064.78       668.93    3,603,674.456
 9     708.46     53.97    367,790.756      9.74     7,773.24       722.90    3,971,465.212
10     708.46     53.97    367,790.756      9.74     8,481.70       776.86    4,339,255.968
11     708.46     53.97    367,790.756      9.74     9,190.16       830.83    4,707,046.724
12     708.27     53.98    367,790.756      9.74     9,898.43       884.81    5,074,837.480
13     708.44     53.99    367,790.756      9.74    10,606.87       938.80    5,442,628.236
14     694.99     53.98    367,790.756      9.74    11,301.86       992.78    5,810,418.992
15     707.31     53.97    367,790.756      9.74    12,009.17     1,046.75    6,178,209.748
16     687.98     53.99    367,790.756      9.74    12,697.15     1,100.74    6,546,000.504
17     687.98     53.99    367,790.756      9.74    13,385.13     1,154.72    6,913,791.260
18     687.98     53.99    367,790.756      9.74    14,073.11     1,208.71    7,281,582.016
19     687.98     53.99    367,790.756      9.74    14,761.09     1,262.69    7,649,372.772
20     702.87     53.99    367,790.756      9.74    15,463.96     1,316.68    8,017,163.528
21     707.76     53.99    367,790.756      9.74    16,171.72     1,370.67    8,384,954.284
22     707.71     53.99    367,790.756      9.74    16,879.43     1,424.66    8,752,745.040
23     707.61     53.99    367,790.756      9.74    17,587.04     1,478.65    9,120,535.796
24     707.61     53.99    367,790.756      9.74    18,294.65     1,532.63    9,488,326.552
25     707.61     53.99    367,790.756      9.74    19,002.26     1,586.62    9,856,117.308
26     697.08     53.91    366,776.050      9.74    19,699.34     1,640.53   10,222,893.358
27     706.41     53.81    366,776.050      9.74    20,405.75     1,694.34   10,589,669.408
28     605.01     53.81    366,776.050      9.73    21,010.76     1,748.15   10,956,445.458
29     697.55     53.75    366,776.050      9.72    21,708.31     1,801.90   11,323,221.508
30    -915.53     53.73    366,776.050      9.72    20,792.78     1,855.63   11,689,997.558
                                                                       
  
    20,792.78  1,855.63    389,666.585
</TABLE>


<TABLE> <S> <C>


<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM ACCOUNTING
RECORDS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH ACCOUNTING
RECORDS.
</LEGEND>
<SERIES>
<NUMBER>        101
<NAME>  KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND - IS SHARES
       
<S>                     <C>
<PERIOD-TYPE>   5-MOS
<FISCAL-YEAR-END>       FEB-28-1997
<PERIOD-START>  OCT-01-1996
<PERIOD-END>    FEB-28-1997
<INVESTMENTS-AT-COST>   73,687,935
<INVESTMENTS-AT-VALUE>  73,844,025
<RECEIVABLES>   1,053,548
<ASSETS-OTHER>  0
<OTHER-ITEMS-ASSETS>    0
<TOTAL-ASSETS>  74,897,573
<PAYABLE-FOR-SECURITIES>        0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES>       1,069,888
<TOTAL-LIABILITIES>     1,069,888
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON>        3,482,617
<SHARES-COMMON-STOCK>   366,534
<SHARES-COMMON-PRIOR>   1,482,857
<ACCUMULATED-NII-CURRENT>       0
<OVERDISTRIBUTION-NII>  10,989
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS>        3,165
<ACCUM-APPREC-OR-DEPREC>        66,769
<NET-ASSETS>    3,563,540
<DIVIDEND-INCOME>       0
<INTEREST-INCOME>       254,531
<OTHER-INCOME>  0
<EXPENSES-NET>  (19,982)
<NET-INVESTMENT-INCOME> 234,549
<REALIZED-GAINS-CURRENT>        (3,761)
<APPREC-INCREASE-CURRENT>       11,604
<NET-CHANGE-FROM-OPS>   242,392
<EQUALIZATION>  0
<DISTRIBUTIONS-OF-INCOME>       (214,330)
<DISTRIBUTIONS-OF-GAINS>        0
<DISTRIBUTIONS-OTHER>   0
<NUMBER-OF-SHARES-SOLD> 879,121
<NUMBER-OF-SHARES-REDEEMED>     (2,020,244)
<SHARES-REINVESTED>     24,800
<NET-CHANGE-IN-ASSETS>  (10,796,912)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR>       0
<OVERDISTRIB-NII-PRIOR> (7,976)
<OVERDIST-NET-GAINS-PRIOR>      (11,718)
<GROSS-ADVISORY-FEES>   10,821
<INTEREST-EXPENSE>      0
<GROSS-EXPENSE> (19,982)
<AVERAGE-NET-ASSETS>    8,756,987
<PER-SHARE-NAV-BEGIN>   9.68
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND>    (0.24)
<PER-SHARE-DISTRIBUTIONS>       0
<RETURNS-OF-CAPITAL>    0
<PER-SHARE-NAV-END>     9.72
<EXPENSE-RATIO> 0.55
<AVG-DEBT-OUTSTANDING>  0
<AVG-DEBT-PER-SHARE>    0
        

</TABLE>

<TABLE> <S> <C>



<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM ACCOUNTING
RECORDS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH ACCOUNTING
RECORDS.
</LEGEND>
<SERIES>
<NUMBER>        102
<NAME>  KEYSTONE INSTITUTIONAL ADJUSTABLE RATE FUND S SHARES
       
<S>                     <C>
<PERIOD-TYPE>   5-MOS
<FISCAL-YEAR-END>       FEB-28-1997
<PERIOD-START>  OCT-01-1996
<PERIOD-END>    FEB-28-1997
<INVESTMENTS-AT-COST>   73,687,935
<INVESTMENTS-AT-VALUE>  73,844,025
<RECEIVABLES>   1,053,548
<ASSETS-OTHER>  0
<OTHER-ITEMS-ASSETS>    0
<TOTAL-ASSETS>  74,897,573
<PAYABLE-FOR-SECURITIES>        0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES>       1,069,888
<TOTAL-LIABILITIES>     1,069,888
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON>        71,144,660
<SHARES-COMMON-STOCK>   7,233,498
<SHARES-COMMON-PRIOR>   6,812,767
<ACCUMULATED-NII-CURRENT>       0
<OVERDISTRIBUTION-NII>  (11,239)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS>        (958,597)
<ACCUM-APPREC-OR-DEPREC>        89,321
<NET-ASSETS>    70,264,145
<DIVIDEND-INCOME>       0
<INTEREST-INCOME>       2,139,447
<OTHER-INCOME>  0
<EXPENSES-NET>  (90,591)
<NET-INVESTMENT-INCOME> 2,048,856
<REALIZED-GAINS-CURRENT>        30,940
<APPREC-INCREASE-CURRENT>       27,285
<NET-CHANGE-FROM-OPS>   2,107,081
<EQUALIZATION>  0
<DISTRIBUTIONS-OF-INCOME>       (1,889,020)
<DISTRIBUTIONS-OF-GAINS>        0
<DISTRIBUTIONS-OTHER>   0
<NUMBER-OF-SHARES-SOLD> 1,030,429
<NUMBER-OF-SHARES-REDEEMED>     (830,759)
<SHARES-REINVESTED>     221,061
<NET-CHANGE-IN-ASSETS>  4,290,305
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR>       0
<OVERDISTRIB-NII-PRIOR> (160,757)
<OVERDIST-NET-GAINS-PRIOR>      (1,142,881)
<GROSS-ADVISORY-FEES>   90,591
<INTEREST-EXPENSE>      0
<GROSS-EXPENSE> (90,591)
<AVERAGE-NET-ASSETS>    72,023,562
<PER-SHARE-NAV-BEGIN>   9.68
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND>    (0.25)
<PER-SHARE-DISTRIBUTIONS>       0
<RETURNS-OF-CAPITAL>    0
<PER-SHARE-NAV-END>     9.71
<EXPENSE-RATIO> 0.30
<AVG-DEBT-OUTSTANDING>  0
<AVG-DEBT-PER-SHARE>    0

        

</TABLE>


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