MFS SERIES TRUST III
497, 1995-03-10
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<PAGE>
                            MFS(R) HIGH INCOME FUND
                       (A SERIES OF MFS SERIES TRUST III)
                    SUPPLEMENT TO BE AFFIXED TO THE CURRENT
                     PROSPECTUS FOR DISTRIBUTION IN INDIANA

The Fund invests primarily in securities  (commonly known as "junk bonds") which
are ordinarily in the lower rating  categories of recognized  rating agencies or
are unrated and generally  involve greater  volatility of price and risk of loss
of  principal  and  interest   income  than  securities  in  the  higher  rating
categories.  An  investment  in shares of the Fund should not be  considered  to
constitute a complete  investment  program and investors should carefully assess
the risks associated with an investment in this Fund.

                  THE DATE OF THIS SUPPLEMENT IS JUNE 1, 1994.
                                                              MHI-16IN-6/94/6.8M

<PAGE>
                            MFS(R) HIGH INCOME FUND
                       (A SERIES OF MFS SERIES TRUST III)
                    SUPPLEMENT TO BE AFFIXED TO THE CURRENT
                   PROSPECTUS FOR DISTRIBUTION IN WASHINGTON

The Fund invests primarily in securities  (commonly known as "junk bonds") which
are ordinarily in the lower rating  categories of recognized  rating agencies or
are unrated and generally  involve greater  volatility of price and risk of loss
of  principal  and  interest   income  than  securities  in  the  higher  rating
categories.  An  investment  in shares of the Fund should not be  considered  to
constitute a complete  investment  program and investors should carefully assess
the risks associated with an investment in this Fund.

                  THE DATE OF THIS SUPPLEMENT IS JUNE 1, 1994.
                                                              MHI-16WA-6/94/6.8M
<PAGE>
                            MFS(R) HIGH INCOME FUND
                      SUPPLEMENT TO THE CURRENT PROSPECTUS

The  third  sentence  under the  caption  "Management  of the Fund -  Investment
Adviser" beginning on page 13 of the Prospectus has been deleted and replaced in
its  entirety  by the  following  sentence:  Robert J.  Manning,  a Senior  Vice
President of the Adviser,  has become the Fund's portfolio manager.  Mr. Manning
has been employed by the Adviser since 1984.

                 THE DATE OF THIS SUPPLEMENT IS JULY 11, 1994.
                                                                 MHI-16-7/94/86M

<PAGE>
<TABLE>
<CAPTION>
<S>                                                                 <C>
  MFS(R) TOTAL RETURN FUND                                          MFS(R) ALABAMA MUNICIPAL BOND FUND
  MASSACHUSETTS INVESTORS GROWTH STOCK FUND                         MFS(R) ARKANSAS MUNICIPAL BOND FUND
  MFS(R) GROWTH OPPORTUNITIES FUND                                  MFS(R) CALIFORNIA MUNICIPAL BOND FUND
  MFS(R) EMERGING GROWTH FUND                                       MFS(R) FLORIDA MUNICIPAL BOND FUND
  MFS(R) CAPITAL GROWTH FUND                                        MFS(R) GEORGIA MUNICIPAL BOND FUND
  MFS(R) INTERMEDIATE INCOME FUND                                   MFS(R) LOUISIANA MUNICIPAL BOND FUND
  MFS(R) GOLD & NATURAL RESOURCES FUND                              MFS(R) MARYLAND MUNICIPAL BOND FUND
  MFS(R) MANAGED SECTORS FUND                                       MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND
  MFS(R) VALUE FUND                                                 MFS(R) MISSISSIPPI MUNICIPAL BOND FUND
  MFS(R) UTILITIES FUND                                             MFS(R) NEW YORK MUNICIPAL BOND FUND
  MFS(R) WORLD EQUITY FUND                                          MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND
  MFS(R) WORLD TOTAL RETURN FUND                                    MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND
  MFS(R) BOND FUND                                                  MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND
  MFS(R) LIMITED MATURITY FUND                                      MFS(R) TENNESSEE MUNICIPAL BOND FUND
  MFS(R) GOVERNMENT MORTGAGE FUND                                   MFS(R) TEXAS MUNICIPAL BOND FUND
  MFS(R) GOVERNMENT LIMITED MATURITY FUND                           MFS(R) VIRGINIA MUNICIPAL BOND FUND
  MFS(R) GOVERNMENT SECURITIES FUND                                 MFS(R) WASHINGTON MUNICIPAL BOND FUND
  MFS(R) HIGH INCOME FUND                                           MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND
  MFS(R) STRATEGIC INCOME FUND                                      MFS(R) MUNICIPAL LIMITED MATURITY FUND
  MFS(R) WORLD GOVERNMENTS FUND                                     MFS(R) MUNICIPAL BOND FUND
  MFS(R) WORLD GROWTH FUND                                          MFS(R) MUNICIPAL INCOME FUND
  MFS(R) OTC FUND                                                   MFS(R) RESEARCH FUND
  MFS(R) MUNICIPAL HIGH INCOME FUND                                 MFS(R) WORLD ASSET ALLOCATION FUND
  MASSACHUSETTS INVESTORS TRUST

                                     SUPPLEMENT TO THE CURRENT PROSPECTUS

During the period from January 3, 1995 through April 28, 1995 (the "Sales Period")  (unless extended
by MFS Fund  Distributors,  Inc.  ("MFD"),  the funds'  principal  underwriter),  MFD will pay A. G.
Edwards and Sons,  Inc.,  ("A. G. Edwards") 100% of the applicable  sales charge on sales of Class A
shares of each of the funds listed above (the "Funds") sold for investment in Individual  Retirement
Accounts  ("IRAs")  (excluding  SEP-IRAs).  In addition,  MFD will pay A. G.  Edwards an  additional
commission  equal to 0.50% of the net asset  value of all of the Class B shares of the Funds sold by
A. G. Edwards during the Sales Period.

                                 THE DATE OF THIS SUPPLEMENT IS JANUARY 3, 1995.

                                                                                MFS-16AG-1/95/3.5M
<PAGE>

</TABLE>
<TABLE>
<CAPTION>
<S>                                                                      <C>
  MFS(R) MANAGED SECTORS FUND                                            MFS(R) MUNICIPAL LIMITED MATURITY FUND
  MFS(R) CASH RESERVE FUND                                               MFS(R) ALABAMA MUNICIPAL BOND  FUND
  MFS(R) WORLD ASSET ALLOCATION FUND                                     MFS(R) ARKANSAS MUNICIPAL BOND FUND
  MFS(R) EMERGING GROWTH FUND                                            MFS(R) CALIFORNIA MUNICIPAL BOND FUND
  MFS(R) CAPITAL GROWTH FUND                                             MFS(R) FLORIDA MUNICIPAL BOND FUND
  MFS(R) GOLD & NATURAL RESOURCES FUND                                   MFS(R) GEORGIA MUNICIPAL BOND FUND
  MFS(R) INTERMEDIATE INCOME FUND                                        MFS(R) LOUISIANA MUNICIPAL BOND FUND
  MFS(R) HIGH INCOME FUND                                                MFS(R) MARYLAND MUNICIPAL BOND FUND
  MFS(R) MUNICIPAL HIGH INCOME FUND                                      MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND
  MFS(R) MONEY MARKET FUND                                               MFS(R) MISSISSIPPI MUNICIPAL BOND FUND
  MFS(R) GOVERNMENT MONEY MARKET FUND                                    MFS(R) NEW YORK MUNICIPAL BOND FUND
  MFS(R) MUNICIPAL BOND FUND                                             MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND
  MFS(R) OTC FUND                                                        MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND
  MFS(R) TOTAL RETURN FUND                                               MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND
  MFS(R) RESEARCH FUND                                                   MFS(R) TENNESSEE MUNICIPAL BOND FUND
  MFS(R) WORLD TOTAL RETURN FUND                                         MFS(R) TEXAS MUNICIPAL BOND FUND
  MFS(R) UTILITIES FUND                                                  MFS(R) VIRGINIA MUNICIPAL BOND FUND
  MFS(R) WORLD EQUITY FUND                                               MFS(R) WASHINGTON MUNICIPAL BOND FUND
  MFS(R) WORLD GOVERNMENTS FUND                                          MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND
  MFS(R) VALUE FUND                                                      MFS(R) GROWTH OPPORTUNITIES FUND
  MFS(R) STRATEGIC INCOME FUND                                           MFS(R) GOVERNMENT MORTGAGE FUND
  MFS(R) WORLD GROWTH FUND                                               MFS(R) GOVERNMENT SECURITIES FUND
  MFS(R) BOND FUND                                                       MASSACHUSETTS INVESTORS GROWTH STOCK FUND
  MFS(R) LIMITED MATURITY FUND                                           MFS(R) GOVERNMENT LIMITED MATURITY FUND
                                                                         MASSACHUSETTS INVESTORS TRUST
</TABLE>
                      SUPPLEMENT TO THE CURRENT PROSPECTUS
     Effective as of January 1, 1995, MFS Fund  Distributors,  Inc.  ("MFD") has
replaced MFS Financial Services,  Inc. ("FSI") as the Fund's  distributor.  Both
MFD and FSI are wholly-owned  subsidiaries of Massachusetts  Financial  Services
Company ("MFS"), the Fund's investment adviser.

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

     Class A shares of the Fund may be  purchased  at net asset value by certain
retirement plans subject to the Employee Retirement Income Security Act of 1974,
as amended,  subject to the  following:

     (i)  The sponsoring  organization  must  demonstrate to the satisfaction of
          MFD that either (a) the  employer has at least 25 employees or (b) the
          aggregate  purchases by the  retirement  plan of Class A shares of the
          Funds will be in an amount of at least  $250,000  within a  reasonable
          period of time, as determined by MFD in its sole discretion; and
     (ii) A contingent deferred  sales charge  of 1%  will  be  imposed  on such
          purchases in the event of certain  redemption  transactions  within 12
          months following such purchases.

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

     Class A shares  may be sold at net  asset  value,  subject  to  appropriate
documentation,  through a dealer where the amount invested represents redemption
proceeds  from  a  registered   open-end   management   investment  company  not
distributed or managed by MFD or its affiliates if: (i) the redeemed shares were
subject to an initial  sales charge or a deferred  sales charge  (whether or not
actually imposed);  (ii) such redemption has occurred no more than 90 days prior
to the  purchase of Class A shares of the Fund;  and (iii) the Fund,  MFD or its
affiliates  have not agreed  with such  company or its  affiliates,  formally or
informally,  to sell  Class A shares at net  asset  value or  provide  any other
incentive with respect to such redemption and sale.

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

     Class  A  shares  of the  Fund  may be  purchased  at net  asset  value  by
retirement  plans  whose  third  party   administrators  have  entered  into  an
administrative  services  agreement with MFD or one or more of its affiliates to
perform  certain  administrative   services,   subject  to  certain  operational
requirements  specified  from  time  to  time  by  MFD or  one  or  more  of its
affiliates.
                -----------------------------------------------
                                                                          (Over)
<PAGE>
     Class A  shares  of the  Fund  (except  of the  MFS  municipal  bond  funds
identified  above)  may be  purchased  at net asset  value by  retirement  plans
qualified  under Section 401(k) of the Code through certain  broker-dealers  and
other financial institutions which have entered into an agreement with MFD which
includes  certain  minimum size  qualifications  for such  retirement  plans and
provides that the  broker-dealer  or other  financial  institution  will perform
certain administrative services with respect to the plan's account.

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

     The CDSC on Class A and Class B shares will be waived upon  redemption by a
retirement  plan where the  redemption  proceeds are used to pay expenses of the
retirement plan or certain  expenses of  participants  under the retirement plan
(e.g.,  participant  account fees),  provided that the retirement plan's sponsor
subscribes  to  the  MFS   Fundamental   401(k)   Plan(sm)  or  another  similar
recordkeeping   system  made  available  by  MFS  Service   Center,   Inc.  (the
"Shareholder Servicing Agent").

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

     The CDSC on Class A and B  shares  will be  waived  upon  the  transfer  of
registration  from shares held by a  retirement  plan  through a single  account
maintained by the  Shareholder  Servicing  Agent to multiple Class A and B share
accounts, respectively,  maintained by the Shareholder Servicing Agent on behalf
of individual  participants in the retirement plan, provided that the retirement
plan's  sponsor  subscribes to the MFS  Fundamental  401(k)  Plan(sm) or another
similar recordkeeping system made available by the Shareholder Servicing Agent.

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

     The applicability of a CDSC will be unaffected by exchanges or transfers of
registration,  except that,  with respect to transfers of registration to an IRA
rollover account, the CDSC will be waived if the shares being reregistered would
have been eligible for a CDSC waiver had they been redeemed.

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

     The current Prospectus  discloses that "Class A shares of the Fund may also
be purchased at net asset value where the purchase is in an amount of $3 million
or more and where the dealer and FSI enter into an agreement in which the dealer
agrees to return any  commission  paid to it on the sale (or a pro rata  portion
thereof) as described above if the shareholder  redeems his or her shares within
one year of purchase. (Shareholders who purchase shares at NAV pursuant to these
conditions  are called ("$3 Million  Shareholders").  This policy is  terminated
effective as of the date of this Supplement and the  above-referenced  language,
and  all  references  to  "$3  Million   Shareholders,"  are  deleted  from  the
Prospectus.
                -----------------------------------------------

     From time to time, MFD may pay dealers 100% of the applicable  sales charge
on sales of Class A shares of certain specified Funds sold by such dealer during
a specified sales period.  In addition,  MFD or its affiliates may, from time to
time, pay dealers an additional commission equal to 0.50% of the net asset value
of all of the Class B shares of  certain  specified  Funds  sold by such  dealer
during a specified sales period.

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

     If a  shareholder  has elected to receive  dividends  and/or  capital  gain
distributions  in cash and the  postal or other  delivery  service  is unable to
deliver  checks to the  shareholder's  address  of  record,  such  shareholder's
distribution  option will  automatically  be converted to reinvest all dividends
and other distributions reinvested in additional shares.

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

     From  time to time,  MFS  may  direct  certain  portfolio  transactions  to
broker-dealer  firms which,  in turn, have agreed to pay a portion of the Fund's
operating expenses (e.g., fees charged by the custodian of the Fund's assets).

                THE DATE OF THIS SUPPLEMENT IS JANUARY 13,1995.

                                                                MFS-16-1/95/605M
<PAGE>
MFS(R) MANAGED SECTORS FUND               MFS(R) GROWTH OPPORTUNITIES FUND
MFS(R) EMERGING GROWTH FUND               MFS(R) HIGH INCOME FUND
MFS(R) CAPITAL GROWTH FUND                MFS(R) MUNICIPAL BOND FUND
MFS(R) GOLD & NATURAL RESOURCES FUND      MFS(R) RESEARCH FUND
MFS(R) WORLD TOTAL RETURN FUND            MFS(R) VALUE FUND
MFS(R) WORLD EQUITY FUND                  MFS(R) BOND FUND
MFS(R) UTILITIES FUND                     MFS(R) LIMITED MATURITY FUND
MFS(R) STRATEGIC INCOME FUND              MFS(R) MUNICIPAL LIMITED MATURITY FUND
MFS(R) MUNICIPAL INCOME FUND              MFS(R) MUNICIPAL SERIES TRUST

  SUPPLEMENT TO BE AFFIXED TO THE CURRENT PROSPECTUS FOR DISTRIBUTION IN OHIO

Prospective Ohio investors should note the following:

a) This  Prospectus  must be delivered to the investor prior to  consummation of
the sale;

b) The  Fund  may  invest  up to 50% of its  assets  in  restricted  securities,
including Rule 144A securities  which have been deemed to be liquid by the Board
of Trustees.
                THE DATE OF THIS SUPPLEMENT IS FEBRUARY 1,1995.

                                                             MFS-160H-2/95/19.5M
<PAGE>
<TABLE>
<CAPTION>
<S>                                                               <C>
  MASSACHUSETTS INVESTORS TRUST                                   MFS(R) WORLD TOTAL RETURN FUND
  MASSACHUSETTS INVESTORS GROWTH STOCK FUND                       MFS(R) MUNICIPAL BOND FUND
  MFS(R) CAPITAL GROWTH FUND                                      MFS(R) MUNICIPAL HIGH INCOME FUND
  MFS(R) EMERGING GROWTH FUND                                     MFS(R) MUNICIPAL INCOME FUND
  MFS(R) GOLD & NATURAL RESOURCES FUND                            MFS(R) ALABAMA MUNICIPAL BOND FUND
  MFS(R) GROWTH OPPORTUNITIES FUND                                MFS(R) ARKANSAS MUNICIPAL BOND FUND
  MFS(R) MANAGED SECTORS FUND                                     MFS(R) CALIFORNIA MUNICIPAL BOND FUND
  MFS(R) OTC FUND                                                 MFS(R) FLORIDA MUNICIPAL BOND FUND
  MFS(R) RESEARCH FUND                                            MFS(R) GEORGIA MUNICIPAL BOND FUND
  MFS(R) VALUE FUND                                               MFS(R) LOUISIANA MUNICIPAL BOND FUND
  MFS(R) TOTAL RETURN FUND                                        MFS(R) MARYLAND MUNICIPAL BOND FUND
  MFS(R) UTILITIES FUND                                           MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND
  MFS(R) BOND FUND                                                MFS(R) MISSISSIPPI MUNICIPAL BOND FUND
  MFS(R) GOVERNMENT MORTGAGE FUND                                 MFS(R) NEW YORK MUNICIPAL BOND FUND
  MFS(R) GOVERNMENT SECURITIES FUND                               MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND
  MFS(R) HIGH INCOME FUND                                         MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND
  MFS(R) INTERMEDIATE INCOME FUND                                 MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND
  MFS(R) STRATEGIC INCOME FUND                                    MFS(R) TENNESSEE MUNICIPAL BOND FUND
  MFS(R) GOVERNMENT LIMITED MATURITY FUND                         MFS(R) TEXAS MUNICIPAL BOND FUND
  MFS(R) LIMITED MATURITY FUND                                    MFS(R) VIRGINIA MUNICIPAL BOND FUND
  MFS(R) MUNICIPAL LIMITED MATURITY FUND                          MFS(R) WASHINGTON MUNICIPAL BOND FUND
  MFS(R) WORLD EQUITY FUND                                        MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND
  MFS(R) WORLD GOVERNMENTS FUND                                   MFS(R) WORLD ASSET ALLOCATION FUND
  MFS(R) WORLD GROWTH FUND
</TABLE>

                      SUPPLEMENT TO THE CURRENT PROSPECTUS

During the period  from  February  1, 1995  through  April 14,  1995 (the "Sales
Period") (unless extended by MFS Fund  Distributors,  Inc.  ("MFD"),  the Funds'
distributor),  MFD will pay Corelink  Financial Inc.  ("Corelink") an additional
commission  equal to 0.10% of the gross  commissonable  sales for Class A shares
and Class B shares and the net asset value for Class C shares (if applicable) of
the Funds sold by Corelink during the Sales Period.

                THE DATE OF THIS SUPPLEMENT IS FEBRUARY 1, 1995.



                                                                MFS-16CL-2/95/5M

<PAGE>

                                           PROSPECTUS
                                           June 1, 1994
                                           Class A Shares of Beneficial Interest
MFS(R) HIGH INCOME FUND                    Class B Shares of Beneficial Interest
(A Member of the MFS Family of Funds(R))   Class C Shares of Beneficial Interest

                                                                          Page
1. The Fund ..............................................................    2
2. Expense Summary .......................................................    2
3. Condensed Financial Information .......................................    4
4. Investment Objective and Policies .....................................    4
5. Management of the Fund ................................................   13
6. Information Concerning Shares of the Fund .............................   14
       Purchases .........................................................   14
       Exchanges .........................................................   19
       Redemptions and Repurchases .......................................   20
       Distribution Plans ................................................   22
       Distributions .....................................................   23
       Tax Status ........................................................   24
       Net Asset Value ...................................................   24
       Description of Shares, Voting Rights and Liabilities ..............   24
       Performance Information ...........................................   25
7. Shareholder Services ..................................................   25
   Appendix A ............................................................   28
   Appendix B ............................................................   30

   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.

MFS HIGH INCOME FUND   500 Boylston Street, Boston, Massachusetts 02116  (617)
954-5000

The  investment  objective  of MFS High Income Fund (the "Fund") is to seek high
current income by investing  primarily in a professionally  managed  diversified
portfolio of fixed income securities,  some of which may involve equity features
(see "Investment  Objective and Policies").  The Fund is a diversified series of
MFS Series Trust III (the "Trust"),  an open-end investment company. The minimum
initial investment is generally $1,000 per account (see "Purchases").

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

Securities  offering the high current income sought by the Fund (commonly  known
as "junk  bonds") are  ordinarily  in the lower rating  categories of recognized
rating agencies or are unrated and generally involve greater volatility of price
and  risk  of  principal  and  income  than  securities  in  the  higher  rating
categories.  Accordingly,  an investment in the Fund may not be appropriate  for
all investors.

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

The investment adviser and distributor for the Fund are Massachusetts  Financial
Services Company and MFS Financial Services, Inc.,  respectively,  both of which
are located at 500 Boylston Street, Boston, Massachusetts 02116.

SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK AND THE SHARES ARE NOT  FEDERALLY  INSURED BY THE  FEDERAL  DEPOSIT
INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY.

This Prospectus  sets forth  concisely the information  concerning the Trust and
the Fund that a prospective investor ought to know before investing.  The Trust,
on behalf of the Fund, has filed with the  Securities and Exchange  Commission a
Statement of Additional  Information,  dated June 1, 1994,  which  contains more
detailed  information about the Trust and the Fund and is incorporated into this
Prospectus  by  reference.  See  page  27  for  a  further  description  of  the
information set forth in the Statement of Additional Information.  A copy of the
Statement of Additional Information may be obtained without charge by contacting
the  Shareholder  Servicing Agent (see back cover for address and phone number).
   INVESTORS SHOULD READ THIS PROSPECTUS AND RETAIN IT FOR FUTURE REFERENCE.


1.  THE FUND
MFS High Income Fund (the  "Fund") is a  diversified  series of MFS Series Trust
III (the "Trust"), an open-end management investment company which was organized
as a business trust under the laws of The Commonwealth of Massachusetts in 1977.
The Trust presently consists of two series, each of which represents a portfolio
with separate investment  policies.  Shares of the Fund are continuously sold to
the  public and the Fund then uses the  proceeds  to buy  securities  (primarily
bonds and other fixed income  instruments)  for its portfolio.  Three classes of
shares of the Fund currently are offered to the general  public.  Class A shares
are offered at net asset  value plus an initial  sales  charge (or a  contingent
deferred sales charge (a "CDSC") in the case of certain  purchases of $1 million
or more) and subject to a Distribution Plan providing for a distribution fee and
a service  fee.  Class B shares are offered at net asset  value  without a sales
charge  but  subject  to  a  CDSC  and  a  Distribution  Plan  providing  for  a
distribution  fee  and a  service  fee  which  are  greater  than  the  Class  A
distribution  fee and service fee. Class B shares will convert to Class A shares
approximately  eight  years  after  purchase.  Class C shares are offered at net
asset value  without a sales charge or a CDSC but are subject to a  Distribution
Plan providing for an annual distribution and service fee which are equal to the
Class B annual  distribution  fee and service fee. Class C shares do not convert
to any other class of shares of the Fund.

The Trust's Board of Trustees provides broad supervision over the affairs of the
Fund. Massachusetts Financial Services Company, a Delaware corporation ("MFS" or
the "Adviser"), is the Fund's investment adviser. A majority of the Trustees are
not affiliated  with the Adviser.  The Adviser is responsible for the management
of the assets of the Fund and the officers of the Trust are  responsible for the
Fund's  operations.  The  Adviser  manages  the  portfolio  from  day  to day in
accordance with the Fund's investment  objective and policies.  The selection of
investments  and the way they are managed depend on the conditions and trends in
the economy and the  financial  marketplaces.  The Trust also offers to buy back
(redeem)  shares  of the Fund from  Fund  shareholders  at any time at their net
asset value, less any applicable CDSC.

2.  EXPENSE SUMMARY
SHAREHOLDER TRANSACTION EXPENSES:
                                              CLASS A       CLASS B    CLASS C
                                              -------       -------    -------
   Maximum Initial Sales Charge Imposed on
     Purchases   of  Fund   Shares  (as  a
     percentage of offering price)             4.75%         0.00%      0.00%

   Maximum   Contingent   Deferred   Sales
     Charge (as a  percentage  of original
     purchase    price    or    redemption
     proceeds, as applicable) ............   See Below(1)    4.00%      0.00%

ANNUAL OPERATING EXPENSES OF THE FUND
  (AS A PERCENTAGE OF AVERAGE NET ASSETS):(2)
 
    Management Fees                            0.45%         0.45%      0.45%
    Rule 12b-1 Fees                            0.21%(3)      1.00%(4)   1.00%(4)
    Other Expenses                             0.34%         0.42%(5)   0.35%(5)
                                               ----          ----       ----
    Total Operating Expenses                   1.00%         1.87%      1.80%

(1) Purchases of $1 million or more are not subject to an initial  sales charge;
    however,  a CDSC of 1% will be  imposed  on such  purchases  in the event of
    certain  redemption  transactions  within 12 months following such purchases
    (see "Purchases" below).

(2) Percentages  are based on  expenses  incurred  during the fiscal  year ended
    January  31,  1994.  For Class B shares,  which  were  initially  offered on
    September  27,  1993,  percentages  are  based on Class A fees and  expenses
    adjusted for Class B specific  expenses  incurred during such partial fiscal
    year. For Class C shares,  which were initially  offered on January 3, 1994,
    percentages  are  based on Class A fees and  expenses  adjusted  for Class C
    specific expenses incurred during such partial fiscal year.

(3) The  Fund  has  adopted  a  Distribution  Plan  for its  Class A  shares  in
    accordance  with Rule 12b-1 under the  Investment  Company  Act of 1940,  as
    amended  (the "1940  Act")  which  provides  that it will pay  distribution/
    service fees  aggregating up to (but not necessarily all of) 0.35% per annum
    of the  average  daily net assets  attributable  to the Class A shares  (see
    "Distribution Plans").  Currently,  0.10% of the distribution/service fee is
    being waived. After a substantial period of time, distribution expenses paid
    under this Plan, together with the initial sales charge, may total more than
    the  maximum  sales  charge  that  would  have been  permissible  if imposed
    entirely as an initial sales charge.

(4) The Fund has  adopted  a  Distribution  Plan for its Class B and its Class C
    shares in accordance with Rule 12b-1 under the 1940 Act, which provides that
    it will pay distribution/service fees aggregating up to (but not necessarily
    all of) 1.00% per annum of the average daily net assets  attributable to the
    Class B shares  under the Class B  Distribution  Plan and the Class C shares
    under the Class C  Distribution  Plan (see  "Distribution  Plans").  After a
    substantial  period of time,  distribution  expenses paid under these Plans,
    together with any CDSC payable upon redemption of Class B shares,  may total
    more than the  maximum  sales  charge  that would have been  permissible  if
    imposed entirely as an initial sales charge.

(5) Based on Class A expenses  incurred during the fiscal year ended January 31,
    1994 except for the  shareholder  servicing  agent fee  component  of "Other
    Expenses" which has been estimated for Class B and Class C shares.

                             EXAMPLE OF EXPENSES
An investor would pay the following dollar amounts of expenses on a $1,000
investment in the Fund, assuming (a) 5% annual return and, (b) redemption at
the end of each of the time periods indicated (unless otherwise noted):


PERIOD                                   CLASS A          CLASS B        CLASS C
- ------                                   -------          -------        -------
                                                               (1)
 1 year                                   $ 57         $ 59    $ 19        $ 18
 3 years                                    78           89      59          57
 5 years                                   100          121     101          97
10 years                                   164          196(2)  196(2)      212

(1) Assumes no redemption.

(2) Class B shares  convert to Class A shares  approximately  eight  years after
    purchase; therefore, years nine and ten reflect Class A expenses.

     The purpose of the expense  table is to assist  investors in  understanding
the various costs and expenses that a shareholder of the Fund will bear directly
or indirectly.  More complete descriptions of the following expenses of the Fund
are set forth in the  following  sections of the  Prospectus:  (i) varying sales
charges on share  purchases --  "Purchases";  (ii) varying CDSCs -- "Purchases";
(iii)  management  fees --  "Investment  Adviser";  and (iv)  Rule  12b-1  (i.e.
distribution plan) fees -- "Distribution Plans".

    THE "EXAMPLE" SET FORTH ABOVE SHOULD NOT BE CONSIDERED A REPRESENTATION OF
PAST OR FUTURE EXPENSES OF THE FUND ; ACTUAL EXPENSES MAY BE GREATER OR LESS
THAN THOSE SHOWN.

3.  CONDENSED FINANCIAL INFORMATION

The  following  information  should be read in  conjunction  with the  financial
statements  included  in the  Fund's  Annual  Report  to  shareholders  which is
incorporated  by reference  into the  Statement  of  Additional  Information  in
reliance  upon the report of  Deloitte & Touche,  independent  certified  public
accountants, as experts in accounting and auditing.
<PAGE>
<TABLE>
<CAPTION>
                                                                    FINANCIAL HIGHLIGHTS
                                                             CLASS A, CLASS B AND CLASS C SHARES
                                                                               YEAR ENDED JANUARY 31,
                                                  ---------------------------------------------------------------------------
                                                   1994        1993     1992      1991      1990       1989     1988     1987
                                                   ----        ----     ----      ----      ----       ----     ----     ----
                                                  CLASS A
                                                  ---------------------------------------------------------------------------
<S>                                               <C>         <C>      <C>        <C>       <C>       <C>      <C>      <C>
PER SHARE DATA (FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD):
Net asset value - beginning of period             $ 5.11      $ 4.89    $ 3.71    $ 4.85    $ 6.04    $ 6.17   $ 7.11   $ 7.14
                                                  ------      ------    ------    ------    ------    ------   ------   ------
Income from investment operations -
  Net investment income<F5>                       $ 0.40      $ 0.51    $ 0.56    $ 0.65    $ 0.69    $ 0.76   $ 0.77   $ 0.93
  Net realized and unrealized gain (loss) on   
    investments                                     0.48        0.24      1.21     (1.08)    (1.13)    (0.09)   (0.83)    0.07
                                                  ------      ------    ------    ------    ------    ------   ------   ------
    Total from investment operations              $ 0.88      $ 0.75    $ 1.77    $(0.43)   $(0.44)   $ 0.67   $(0.06)  $ 1.00
Less distributions declared to shareholders -
  From net investment income                      $(0.42)     $(0.51)   $(0.56)   $(0.71)   $(0.75)   $(0.75)  $(0.87)  $(0.93)
  In excess of net investment income               (0.07)         --        --        --        --        --       --       --
  From paid-in capital<F1>                            --       (0.02)    (0.03)       --        --        --       --       --
  From net realized gains                             --          --        --        --        --     (0.05)   (0.01)   (0.10)
                                                  ------      ------    ------    ------    ------    ------   ------   ------
    Total distributions declared to shareholders  $ (0.49)    $(0.53)   $(0.59)   $(0.71)   $(0.75)   $(0.80)  $(0.88)  $(1.03)
                                                  ------      ------    ------    ------    ------    ------   ------   ------
Net asset value - end of period                   $  5.50     $ 5.11    $ 4.89    $ 3.71    $ 4.85    $ 6.04   $ 6.17   $ 7.11
                                                  ------      ------    ------    ------    ------    ------   ------   ------
                                                  ------      ------    ------    ------    ------    ------   ------   ------
TOTAL RETURN<F4>                                    18.13%     16.36%    49.64%   (10.99)%   (9.18)%   10.68%   (1.94)%  14.03%
RATIOS (TO AVERAGE NET ASSETS)/SUPPLEMENTAL DATA:
  Expenses<F5>                                       1.00%      1.03%     1.10%     1.05%     0.87%     0.87%    0.75%    0.71%
  Net investment income<F5>                          8.22%     10.21%    11.59%    14.97%    12.17%    12.44%   11.49%   12.49%
PORTFOLIO TURNOVER                                     68%        75%       28%       24%       25%       34%      28%      46%
NET ASSETS AT END OF PERIOD (000,000 OMITTED)     $   645     $  585    $  556    $  380    $  574     $ 880   $1,001   $1,232
<CAPTION>
                                                     1986       1985       1994         1994
                                                   -----------------       -------------------
                                                   CLASS A                 CLASS B<F2> CLASS C<F3>
                                                   -----------------       -------------------
<S>                                                <C>         <C>        <C>         <C>   
PER SHARE DATA (FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD):
Net asset value - beginning of period              $ 6.84      $ 7.90     $ 5.27       $ 5.41
                                                   ------      ------     ------       ------
Income from investment operations -
  Net investment income<F5>                        $ 0.87      $ 0.97     $ 0.15       $   --
  Net realized and unrealized gain (loss) on  
    investments                                      0.37       (0.63)      0.22         0.09
                                                   ------      ------     ------       ------
    Total from investment operations               $ 1.24      $ 0.34     $ 0.37       $ 0.09
                                                   ------      ------     ------       ------
Less distributions declared to shareholders -
  From net investment income                       $(0.94)     $(0.91)    $(0.13)      $   --<F7>
  In excess of net investment income                   --          --      (0.01)          --<F7>
  From paid-in capital<F1>                             --          --         --           --
  From net realized gains                              --       (0.49)        --           --
                                                   ------      ------     ------       ------
    Total distributions declared to shareholders   $(0.94)     $(1.40)    $(0.14)      $   --
                                                   ------      ------     ------       ------
Net asset value - end of period                     $7.14      $ 6.84     $ 5.50       $ 5.50
                                                   ------      ------     ------       ------
                                                   ------      ------     ------       ------
TOTAL RETURN<F4>                                    18.34%       4.59%     20.29%<F6>   28.07%<F6>
RATIOS (TO AVERAGE NET ASSETS)/SUPPLEMENTAL DATA:
  Expenses <F5>                                      0.80%       0.87%      1.79%<F6>    1.36%<F6>
  Net investment income<F5>                         12.47%      14.36%      6.94%<F6>    5.92%<F6>
PORTFOLIO TURNOVER                                     49%         79%        68%          68%
NET ASSETS AT END OF PERIOD (000,000 OMITTED)       $ 581      $  407     $  371       $    1
<FN>
- -------------
<F1>For  the  years  ended  January  31,  1990  and  1989,  Class  A  per  share
    distributions from paid-in capital were $0.004 and $0.0006, respectively.
<F2>For the  period  from  the  commencement  of  offering  of  Class B  shares,
    September 27, 1993, to January 31, 1994.
<F3>For the period from the commencement of offering of Class C shares,  January
    3, 1994, to January 31, 1994.
<F4>These results do not include the applicable  sales charge for Class A shares
    (except for the  reinvestment  of dividends  prior to March 1, 1991). If the
    charge had been included, the results would have been lower.
<F5>The  distributor  did not  impose  its  distribution  fee for Class A shares
    amounting to $255,234 for the year ended  January 31, 1994.  If this fee had
    been  incurred  by the Fund,  the Class A net  investment  income per share,
    ratio of expenses to average net assets and net investment income to average
    net assets would have been $0.40, 1.04% and 8.18%, respectively.
<F6>Annualized.
<F7>For the period ended January 31, 1994, Class C per share  distributions from
    net investment income and in excess of net investment income were $0.004 and
    $0.001, respectively.
</FN>
</TABLE>

4.  INVESTMENT OBJECTIVE AND POLICIES

INVESTMENT  OBJECTIVE  -- The  investment  objective of the Fund is to seek high
current income by investing  primarily in a professionally  managed  diversified
portfolio of fixed income securities, some of which may involve equity features.
Capital growth,  if any, is a  consideration  incidental to the objective of the
Fund of high current  income.  Any investment  involves risk and there can be no
assurance that the Fund will achieve its investment objective.

INVESTMENT  POLICIES -- Fixed income securities offering the high current income
sought by the Fund normally include those fixed income  securities which offer a
current  yield above that  generally  available on debt  securities in the three
highest rating categories of the recognized  rating agencies  (commonly known as
"junk bonds" if rated below the four highest  categories  of  recognized  rating
agencies).  However,  since available yields and yield  differentials  vary over
time, no specific level of income or yield differential can ever be assured. The
dividends  paid by the Fund will  increase or decrease in relation to the income
received by the Fund from its investments, which would in any case be reduced by
the expenses of the Fund before such income is distributed to its  shareholders.
For a description of these rating categories,  see Appendix A to this Prospectus
and for a chart  indicating  the  composition  of the Fund's  portfolio  for its
fiscal year ended January 31, 1994, with the debt securities rated by Standard &
Poor's separated into rating categories,  see Appendix B to this Prospectus (see
"Investment  Objective  and Policies -- Risk Factors of Lower Rated  Securities"
below for a description  of the risks involved in investing in these lower rated
fixed income securities).

Fixed income securities include preferred and preference stocks and all types of
debt  obligations  of  both  domestic  and  foreign  issuers,   such  as  bonds,
debentures,  notes,  equipment lease certificates,  equipment trust certificates
(including interests in trusts or other entities representing such obligations),
conditional  sales  contracts,   commercial  paper  and  obligations  issued  or
guaranteed  by the  U.S.  Government,  any  foreign  government  or any of their
respective  political  subdivisions,  agencies or  instrumentalities  (including
obligations, such as repurchase agreements, secured by such instruments).

Corporate debt  securities  may bear fixed,  fixed and  contingent,  or variable
rates of  interest  and may  involve  equity  features,  such as  conversion  or
exchange  rights  or  warrants  for the  acquisition  of  stock of the same or a
different issuer;  participations  based on revenues,  sales or profits;  or the
purchase of common stock in a unit transaction  (where corporate debt securities
and common stock are offered as a unit).  Under normal  market  conditions,  not
more than 25% of the value of the total  assets of the Fund will be  invested in
equity securities, including common stocks, warrants and rights.

Fixed  income  securities  that the Fund may invest in also  include zero coupon
bonds,  deferred  interest  bonds and bonds on which the  interest is payable in
kind ("PIK bonds"). Zero coupon and deferred interest bonds are debt obligations
which are  issued  at a  significant  discount  from face  value.  The  discount
approximates  the total  amount of interest  the bonds will accrue and  compound
over the period until maturity or the first  interest  payment date at a rate of
interest  reflecting  the market rate of the  security at the time of  issuance.
While zero  coupon  bonds do not  require  the  periodic  payment  of  interest,
deferred interest bonds provide for a period of delay before the regular payment
of interest begins. PIK bonds are debt obligations which provide that the issuer
thereof may, at its option, pay interest on such bonds in cash or in the form of
additional debt obligations.  Such investments  benefit the issuer by mitigating
its need for cash to meet debt service, but also require a higher rate of return
to  attract  investors  who are  willing to defer  receipt  of such  cash.  Such
investments may experience  greater volatility in market value due to changes in
interest rates than debt  obligations  which make regular  payments of interest.
The Fund will accrue income on such investments for tax and accounting purposes,
as required,  which is distributable to shareholders and which,  because no cash
is  received  at the time of  accrual,  may  require  the  liquidation  of other
portfolio securities to satisfy the Fund's distribution obligations.

COLLATERALIZED MORTGAGE OBLIGATIONS AND MULTICLASS PASS-THROUGH SECURITIES:  The
Fund may invest a portion of its assets in collateralized  mortgage  obligations
("CMOs"),  which  are  debt  obligations  collateralized  by  mortgage  loans or
mortgage  pass-through  securities  (such  collateral  collectively  hereinafter
referred  to as  "Mortgage  Assets").  The Fund may also invest a portion of its
assets in multiclass  pass-through  securities  which are equity  interests in a
trust composed of Mortgage Assets.  Unless the context indicates otherwise,  all
references herein to CMOs include multiclass pass-through  securities.  Payments
of principal of and interest on the Mortgage Assets,  and any reinvested  income
thereon,  provide  the funds to pay debt  service on the CMOs or make  scheduled
distributions on the multiclass  pass-through  securities.  In CMOs, a series of
bonds or  certificates  are usually  issued in multiple  classes with  different
maturities.  Each class of CMOs, often referred to as a "tranch", is issued at a
specific  fixed or  floating  coupon  rate and has a  stated  maturity  or final
distribution  date.  Principal  prepayments on the Mortgage Assets may cause the
CMOs to be retired  substantially  earlier then their stated maturities or final
distribution dates,  resulting in a loss of all or a part of the premium, if any
has been  paid.  The  Fund may also  invest  in  parallel  pay CMOs and  Planned
Amortization  Class CMOs ("PAC  Bonds").  Parallel  pay CMOs are  structured  to
provide  payments of principal on each payment date to more than one class.  PAC
Bonds  generally  require  payments of a specified  amount of  principal on each
payment date. PAC Bonds are always parallel pay CMOs with the required principal
payment on such securities  having the highest  priority after interest has been
paid to all classes.  For a further  description  of CMOs,  see the Statement of
Additional Information. 

STRIPPED MORTGAGE-BACKED SECURITIES: The Fund may invest a portion of its assets
in stripped mortgage-backed securities,  which are derivative securities usually
structured with two classes that receive  different  proportions of the interest
and principal  distributions  from an underlying pool of Mortgage Assets.  For a
further discussion of stripped mortgage-backed  securities and the risks related
to transactions therein, see the Statement of Additional Information.

AMERICAN  DEPOSITARY  RECEIPTS:  The  Fund may  invest  in  American  Depositary
Receipts ("ADRs") which are certificates  issued by a U.S. depository (usually a
bank) and  represent a specified  quantity of shares of an  underlying  non-U.S.
Stock on deposit with a custodian bank as  collateral.  Although ADRs are issued
by a U.S.  depository,  they  are  subject  to  many  of the  risks  of  foreign
securities such as changes in exchange rates and more limited  information about
foreign issuers.

FOREIGN  SECURITIES:  The Fund may invest up to 50% (and  expects  generally  to
invest  between  5% and 20%) of its total  assets  in  foreign  securities  (not
including  American  Depositary  Receipts).  Investing in  securities of foreign
issuers  generally  involves risks not ordinarily  associated  with investing in
securities  of  domestic  issuers.  These  include  changes in  currency  rates,
exchange  control  regulations,   governmental  administration  or  economic  or
monetary  policy (in the United States or abroad) or  circumstances  in dealings
between nations.  Costs may be incurred in connection with  conversions  between
various  currencies.  Special  considerations  may  also  include  more  limited
information about foreign issuers,  higher brokerage costs, different accounting
standards and thinner trading markets.  Foreign  securities  markets may also be
less liquid,  more volatile and less subject to government  supervision  than in
the United States.  Investments in foreign  countries could be affected by other
factors   including   expropriation,   confiscatory   taxation   and   potential
difficulties  in  enforcing  contractual  obligations  and could be  subject  to
extended  settlement  periods.  The Fund may hold foreign  currency  received in
connection with  investments in foreign  securities when, in the judgment of the
Adviser,  it would be beneficial to convert such currency into U.S. dollars at a
later date, based on anticipated changes in the relevant exchange rate. The Fund
may also hold foreign currency in anticipation of purchasing foreign securities.
The Fund may invest in foreign  securities  without limitation and has authority
to invest up to 25% of its total assets in  securities  issued or  guaranteed by
foreign governments or their agencies or  instrumentalities.  However,  the Fund
has made  commitments  to regulatory  authorities  to limit its  investments  in
securities issued by any single foreign government to 5% of its total assets and
to continue to maintain its status as a diversified company under the Investment
Company  Act of  1940,  as  amended  (the  "1940  Act").  See the  Statement  of
Additional  Information  for further  discussion of foreign  securities  and the
holding of foreign currency, as well as the associated risks.

The Fund may  invest up to 40% of the  value of its total  assets in each of the
electric utility and telephone industries,  but will not invest more than 25% in
either of those industries unless yields available for four consecutive weeks in
the four highest  rating  categories on new issue bonds in such industry  (issue
size of $50  million or more) have  averaged  in excess of 105% of yields of new
issue long-term  industrial  bonds similarly rated (issue size of $50 million or
more) and, in the opinion of the Adviser, the relative return available from the
electric  utility or telephone  industry and the relative  risk,  marketability,
quality and  availability  of  securities  of such  industry  justifies  such an
investment.

During  periods of unusual  market  conditions  when the Adviser  believes  that
investing for defensive  purposes is  appropriate,  part or all of the assets of
the Fund may be invested in cash  (including  foreign  currency)  or  short-term
money market instruments including, but not limited to, certificates of deposit,
commercial paper, short-term notes, obligations issued or guaranteed by the U.S.
Government  or  any  of  its  agencies  or   instrumentalities   and  repurchase
agreements.

When and if available,  fixed income  securities  may be purchased at a discount
from face value.  However,  the Fund does not intend to hold such  securities to
maturity for the purpose of achieving  potential  capital gains,  unless current
yields on these  securities  remain  attractive.  From time to time the Fund may
purchase  securities not paying interest at the time acquired if, in the opinion
of the Adviser,  such securities have the potential for future income or capital
appreciation.

RISK  FACTORS OF LOWER RATED  SECURITIES:  Securities  offering the high current
income  sought by the Fund are  ordinarily  in the lower  rating  categories  of
recognized  rating  agencies  (that  is,  ratings  of Baa or  lower  by  Moody's
Investors Service, Inc. ("Moody's") or BBB or lower by Standard & Poor's Ratings
Group ("S&P")) or are unrated and, as described below, generally involve greater
volatility  of price and risk of  principal  and income  than  securites  in the
higher  rating  categories.  Accordingly,  an  investment  in shares of the Fund
should not constitute a complete  investment  program and may not be appropriate
for  all   investors.   The  Fund,   however,   seeks  to  reduce  risk  through
diversification,  credit  analysis  and  attention to current  developments  and
trends in both the economy and financial  markets.  In addition,  investments in
foreign securities may serve to provide further diversification.

The Fund may invest in fixed  income  securities  rated Baa by Moody's or BBB by
S&P (and  comparable  unrated  securities).  These  securities,  while  normally
exhibiting adequate protection parameters,  have speculative characteristics and
changes in economic conditions or other circumstances are more likely to lead to
a weakened  capacity to make principal and interest payments than in the case of
higher grade fixed income securities.

The Fund may also invest in fixed income securities rated Ba or lower by Moody's
or BB or lower by S&P (and  comparable  unrated  securities)  (commonly known as
"junk  bonds").  No minimum  rating  standard  is  required  by the Fund.  These
securities are considered  speculative  and, while generally  providing  greater
income than investments in higher rated securities, will involve greater risk of
principal and income  (including the possibility of default or bankruptcy of the
issuers  of such  securities)  and  may  involve  greater  volatility  of  price
(especially during periods of economic uncertainty or change) than securities in
the higher  rating  categories  and because  yields vary over time,  no specific
level of income can ever be  assured.  These  lower  rated high  yielding  fixed
income  securities  generally  tend to be affected by economic  changes (and the
outlook for economic growth), short-term corporate and industry developments and
the market's  perception  of their credit  quality  (especially  during times of
adverse publicity) to a greater extent than higher rated securities, which react
primarily to fluctuations in the general level of interest rates (although these
lower  rated  securities  are also  affected  by  changes in  interest  rates as
described  below).  In the past,  economic  downturns or an increase in interest
rates have, under certain circumstances, caused a higher incidence of default by
the issuers of these  securities and may do so in the future,  especially in the
case of highly leveraged issuers.  During certain periods,  the higher yields on
the Fund's lower rated high yielding fixed income  securities are paid primarily
because of the increased risk of loss of principal and income, arising from such
factors as the heightened possibility of default or bankruptcy of the issuers of
such securities.  Due to the fixed income payments of these securities, the Fund
may continue to earn the same level of interest income while its net asset value
declines  due to  portfolio  losses,  which  could  result in an increase in the
Fund's  yield  despite  the  actual  loss of  principal.  The  prices  for these
securities  may be affected by  legislative  and  regulatory  developments.  For
example, new federal rules require that savings and loan associations  gradually
reduce their holdings of high-yield  securities.  An effect of such  legislation
may be to depress  the prices of  outstanding  lower rated high  yielding  fixed
income securities.  The market for these lower rated fixed income securities may
be less liquid than the market for  investment  grade fixed  income  securities.
Furthermore,  the liquidity of these lower rated  securities  may be affected by
the  market's  perception  of their credit  quality.  Therefore,  the  Adviser's
judgment may at times play a greater role in valuing  these  securities  than in
the case of investment  grade fixed income  securities,  and it also may be more
difficult during times of certain adverse market  conditions to sell these lower
rated  securities  to meet  redemption  requests or to respond to changes in the
market.

While the  Adviser  may refer to ratings  issued by  established  credit  rating
agencies,  it is not the Fund's policy to rely  exclusively on ratings issued by
these rating agencies,  but rather to supplement such ratings with the Adviser's
own independent and ongoing review of credit quality.  The Fund's achievement of
its  investment  objective  may be more  dependent on the  Adviser's  own credit
analysis than in the case of an investment company primarily investing in higher
quality fixed income securities.

Since shares of the Fund represent an investment in securities with  fluctuating
market prices,  shareholders  should  understand that the value of shares of the
Fund will vary as the aggregate  value of the  portfolio  securities of the Fund
increases or decreases.  However,  changes in the value of securities subsequent
to their  acquisition  will not affect  cash  income or yield to maturity to the
Fund.

The net asset value of the shares of an open-end investment company, such as the
Fund, which invests primarily in fixed income securities, changes as the general
levels of interest rates fluctuate.  When interest rates decline, the value of a
portfolio  invested at higher yields can be expected to rise.  Conversely,  when
interest  rates rise,  the value of a portfolio  invested at lower yields can be
expected to decline.

The Fund seeks to maximize the return on its  portfolio  by taking  advantage of
market developments, yield disparities and variations in the creditworthiness of
issuers.  This may result in increases or decreases in the current income of the
Fund available for  distribution to its  shareholders  and in the holding by the
Fund of debt  securities  which sell at  moderate  to  substantial  premiums  or
discounts from face value.  Moreover,  if the Fund's  expectations of changes in
interest  rates or its evaluation of the normal yield  relationship  between two
securities  proves to be  incorrect,  the income,  net asset value and potential
capital gain of the Fund may be decreased or its  potential  capital loss may be
increased.

MORTGAGE PASS-THROUGH SECURITIES: The Fund may invest in mortgage pass-through
securities. Mortgage pass-through securities are securities representing
interests in "pools" of mortgage loans. Monthly payments of interest and
principal by the individual borrowers on mortgages are passed through to the
holders of the securities (net of fees paid to the issuer or guarantor of the
securities) as the mortgages in the underlying mortgage pools are paid off.
The average lives of mortgage pass-throughs are variable when issued because
their average lives depend on prepayment rates. The average life of these
securities is likely to be substantially shorter than their stated final
maturity as a result of unscheduled principal prepayment. Prepayments on
underlying mortgages result in a loss of anticipated interest, and all or part
of a premium if any has been paid, and the actual yield (or total return) to
the Fund may be different than the quoted yield on the securities. Mortgage
prepayments generally increase with falling interest rates and decrease with
rising interest rates. Like other fixed income securities, when interest rates
rise the value of a mortgage pass-through security generally will decline;
however, when interest rates are declining, the value of mortgage pass-through
securities with prepayment features may not increase as much as that of other
fixed income securities.

SWAPS AND RELATED  TRANSACTIONS:  The Fund may enter into  interest  rate swaps,
currency swaps and other types of available swap  agreements.  Swaps involve the
exchange by the Fund with another  party of cash payments  based upon  different
interest rate indexes,  currencies, and other prices or rates, such as the value
of mortgage  prepayment  rates. For example,  in the typical interest rate swap,
the Fund might  exchange a sequence of cash  payments  based on a floating  rate
index for cash payments based on a fixed rate.

The Fund may also purchase and sell caps,  floors and collars.  In a typical cap
or floor  agreement,  one party  agrees to make  payments  only under  specified
circumstances,  usually in return for payment of a fee by the counterparty.  For
example,  the purchase of an interest rate cap entitles the buyer, to the extent
that a  specified  index  exceeds a  predetermined  interest  rate,  to  receive
payments  of  interest  on  a  contractually-based  principal  amount  from  the
counterparty selling such interest rate cap.

The sale of an interest rate floor  obligates the seller to make payments to the
extent that a specified interest rate falls below an agreed-upon level. A collar
arrangement combines elements of buying a cap and selling a floor.

Swaps, caps, floors and collars are highly specialized  activities which involve
certain  risks  different  from  those   associated   with  ordinary   portfolio
transactions.   See  the  Statement  of  Additional   Information   for  further
information on, and the risks involved in, these activities.

REPURCHASE AGREEMENTS: The Fund may enter into repurchase agreements in order to
earn additional  income on available cash or as a temporary  defensive  measure.
Under a  repurchase  agreement,  the Fund  acquires  securities  subject  to the
seller's  agreement to repurchase at a specified  time and price.  If the seller
becomes  subject to a  proceeding  under the  bankruptcy  laws or its assets are
otherwise  subject to a stay order, the Fund's right to liquidate the securities
may be restricted (during which time the value of the securities could decline).
As discussed in the  Statement of Additional  Information,  the Fund has adopted
certain procedures intended to minimize any risk.

LENDING OF  PORTFOLIO  SECURITIES:  The Fund may seek to increase  its income by
lending  portfolio  securities.  Such loans will usually be made to member firms
(and subsidiaries thereof) of the New York Stock Exchange and to member banks of
the Federal Reserve System, and would be required to be secured  continuously by
collateral in cash, cash equivalents or U.S. Treasury securities maintained on a
current basis at an amount at least equal to the market value of the  securities
loaned. If the Adviser  determines to make securities loans, it is intended that
the value of the  securities  loaned  would not  exceed  30% of the value of the
total assets of the Fund.

LOANS AND OTHER DIRECT INDEBTEDNESS: The Fund may invest a portion of its assets
in "loans." By purchasing a loan,  the Fund acquires some or all of the interest
of a bank or other lending institution in a loan to a corporate  borrower.  Many
such loans are secured, and most impose restrictive  covenants which must be met
by the  borrower.  These loans are made  generally to finance  internal  growth,
mergers, acquisitions, stock repurchases, leveraged buy-outs and other corporate
activities.  Such loans may be in default at the time of purchase.  The Fund may
also purchase trade or other claims against companies, which generally represent
money owed by the company to a supplier of goods or  services.  These claims may
also be purchased at a time when the company is in default. Certain of the loans
acquired by the Fund may involve  revolving  credit  facilities or other standby
financing  commitments  which  obligate  the  Fund to pay  additional  cash on a
certain date or on demand.

The highly  leveraged  nature of many such loans may make such loans  especially
vulnerable to adverse changes in economic or market conditions.  Loans and other
direct  investments  may not be in the form of  securities  or may be subject to
restrictions  on transfer,  and only limited  opportunities  may exist to resell
such instruments.  As a result,  the Fund may be unable to sell such investments
at an opportune  time or may have to resell them at less than fair market value.
For a further discussion of loans and the risks related to transactions therein,
see the Statement of Additional Information.

MORTGAGE  "DOLLAR ROLL"  TRANSACTIONS:  The Fund may enter into mortgage "dollar
roll" transactions with selected banks and broker-dealers  pursuant to which the
Fund sells  mortgage-backed  securities  for  delivery in the future  (generally
within 30 days) and simultaneously contracts to repurchase substantially similar
(same type, coupon and maturity) securities on a specified future date. The Fund
will only enter into  covered  rolls.  A  "covered  roll" is a specific  type of
dollar roll for which there is an offsetting  cash position or a cash equivalent
security position which matures on or before the forward  settlement date of the
dollar roll transaction.

"WHEN-ISSUED"  SECURITIES:  The Fund may purchase  some  securities  on a "when-
issued" or on a "forward  delivery" basis,  which means that the securities will
be delivered to the Fund at a future date usually  beyond  customary  settlement
time.  The commitment to purchase a security for which payment will be made on a
future  date may be deemed a  separate  security.  The Fund does not pay for the
securities until received, and does not start earning interest on the securities
until  the  contractual   settlement   date.  In  order  to  invest  its  assets
immediately,  while awaiting delivery of securities purchased on such bases, the
Fund  will  normally  invest  in  short-term   securities  that  offer  same-day
settlement and earnings.

CORPORATE  ASSET-BACKED  SECURITIES:  The Fund may  invest in  corporate  asset-
backed  securities.  These  securities,  issued by trusts  and  special  purpose
corporations,  are backed by a pool of assets, such as credit card or automobile
loan receivables, representing the obligations of a number of different parties.
Corporate  asset-backed  securities present certain risks. For instance,  in the
case of credit card  receivables,  these  securities may not have the benefit of
any security interest in the related collateral. See the Statement of Additional
Information for further information on these securities.

RESTRICTED  SECURITIES:  The  Fund  may also  purchase  securities  that are not
registered   under  the  Securities  Act  of  1933  ("1933  Act")   ("restricted
securities"),  including  those  that  can be  offered  and  sold to  "qualified
institutional   buyers"   under  Rule  144A  under  the  1933  Act  ("Rule  144A
securities").  The Trust's Board of Trustees determines, based upon a continuing
review of the trading  markets for a specific Rule 144A  security,  whether such
security is illiquid and thus subject to a Fund's  limitation  on investing  not
more than 15% of its net assets in illiquid investments,  or liquid and thus not
subject to such  limitation.  The Board of Trustees has adopted  guidelines  and
delegated to MFS the daily function of determining  and monitoring the liquidity
of Rule 144A securities.  The Board,  however,  will retain sufficient oversight
and be ultimately  responsible for the determinations.  The Board will carefully
monitor  the  Fund's  investments  in Rule  144A  securities,  focusing  on such
important  factors,  among others,  as valuation,  liquidity and availability of
information.  This  investment  practice could have the effect of increasing the
level of illiquidity in a Fund to the extent that qualified institutional buyers
become for a time  uninterested  in purchasing  Rule 144A securities held in the
Fund's  portfolio.  Subject to the  Fund's  15%  limitation  on  investments  in
illiquid investments, the Fund may also invest in restricted securities that may
not be sold under Rule 144A, which presents certain risks. As a result, the Fund
might not be able to sell these  securities when the Adviser wishes to do so, or
might have to sell them at less than fair value. In addition,  market quotations
are less readily available. Therefore, judgment may at times play a greater role
in valuing these securities than in the case of unrestricted securities.

OPTIONS:  The Fund may write (sell)  "covered"  put and call options on domestic
and foreign fixed income  securities.  Call options written by the Fund give the
holder  the  right  to buy the  underlying  securities  from the Fund at a fixed
exercise  price  up to a stated  expiration  date  or,  in the  case of  certain
options,  on such  date.  Put  options  give the  holder  the  right to sell the
underlying  security  to the  Fund  during  the  term of the  option  at a fixed
exercise  price  up to a stated  expiration  date  or,  in the  case of  certain
options, on such date. Call options are "covered" by the Fund, for example, when
it owns the  underlying  securities,  and put options are "covered" by the Fund,
for example,  when it has established a segregated  account of cash,  short-term
money  market  instruments  and  high  quality  debt  securities  which  can  be
liquidated  promptly  to satisfy  any  obligation  of the Fund to  purchase  the
underlying securities.  The Fund may also write straddles  (combinations of puts
and  calls  on  the  same  underlying  security).   Such  transactions  generate
additional premium income but also include greater risk.

The Fund will  receive  a  premium  from  writing  a put or call  option,  which
increases the Fund's gross income in the event the option expires unexercised or
is closed out at a profit.  The amount of the premium will reflect,  among other
things,  the  relationship  of the  exercise  price  to  the  market  price  and
volatility of the underlying security,  the remaining term of the option, supply
and demand and interest  rates.  By writing a call  option,  the Fund limits its
opportunity  to profit from any increase in the market  value of the  underlying
security  above the exercise price of the option.  By writing a put option,  the
Fund  assumes  the risk  that it may be  required  to  purchase  the  underlying
security  for an exercise  price  higher  than its then  current  market  value,
resulting  in  a  potential  capital  loss  unless  the  security   subsequently
appreciates in value.

The Fund may terminate an option that it has written prior to its  expiration by
entering  into a closing  purchase  transaction  in which it purchases an option
having the same terms as the  option  written.  It is  possible,  however,  that
illiquidity  in the options  markets may make it difficult from time to time for
the Fund to close out its written option positions.

The Fund may also  purchase  put or call options in  anticipation  of changes in
interest  rates which may  adversely  affect the value of its  portfolio  or the
prices of  securities  that the Fund  wants to  purchase  at a later  date.  The
premium paid for a put or call option plus any transaction costs will reduce the
benefit,  if any, realized by the Fund upon exercise of the option,  and, unless
the price of the underlying security changes sufficiently, the option may expire
without value to the Fund.

The Fund may write and  purchase  options  on  securities  not only for  hedging
purposes,  but also  for the  purpose  of  increasing  its  return.  Options  on
securities  that are written or purchased by the Fund will be traded on U.S. and
foreign exchanges and over-the-counter.

The Fund may also enter into options on the yield "spread" or yield differential
between  two fixed  income  securities,  a  transaction  referred to as a "yield
curve" option, for hedging and non-hedging  purposes. In contrast to other types
of options,  a yield curve option is based on the difference  between the yields
of  designated  fixed  income  securities  rather than the actual  prices of the
individual securities. Yield curve options written by the Fund will be "covered"
but could involve  additional risks, as discussed in the Statement of Additional
Information.

The staff of the  Securities and Exchange  Commission  (the "SEC") has taken the
position  that  purchased  over-the-counter  options  and  assets  used to cover
written  over-the-counter  options are illiquid  and,  therefore,  together with
other illiquid  securities held by the Fund, cannot exceed a certain  percentage
of the Fund's  assets  (the "SEC  illiquidity  ceiling").  Although  the Adviser
disagrees with this position, the Adviser intends to limit the Fund's writing of
over-the-counter  options in accordance with the following procedure.  Except as
provided  below,  the Fund intends to write  over-the-counter  options only with
primary U.S.  Government  securities  dealers  recognized as such by the Federal
Reserve Bank of New York.  Also, the contracts  which the Fund has in place with
such primary  dealers provide that the Fund has the absolute right to repurchase
an  option it writes at any time at a price  which  represents  the fair  market
value, as determined in good faith through negotiation between the parties,  but
which in no event will  exceed a price  determined  pursuant to a formula in the
contract.  Although  the  specific  formula  may  vary  between  contracts  with
different  primary dealers,  the formula generally is based on a multiple of the
premium received by the Fund for writing the option, plus the amount, if any, of
the option's intrinsic value (i.e., the amount that the option is in-the-money).
The formula may also include a factor to account for the difference  between the
price of the  security  and the  strike  price of the  option  if the  option is
written  out-of-the-money.  The Fund will treat all or a portion of the  formula
price as illiquid for purposes of the SEC illiquidity ceiling. The Fund may also
write  over-the-counter  options with  non-primary  dealers,  including  foreign
dealers,  and will treat the assets used to cover these  options as illiquid for
purposes of the SEC illiquidity ceiling.

FUTURES  CONTRACTS AND OPTIONS ON FUTURES  CONTRACTS:  The Fund may purchase and
sell futures contracts on fixed income securities or indices of such securities,
including  municipal  bond  indices  and  any  other  indices  of  fixed  income
securities which may become  available for trading  ("Futures  Contracts").  The
Fund may also purchase and write options on such Futures Contracts  ("Options on
Futures Contracts"). These instruments will be used to hedge against anticipated
future changes in interest rates which otherwise might either  adversely  affect
the value of the Fund's  portfolio  securities or adversely affect the prices of
securities  which the Fund intends to purchase at a later date.  Should interest
rates move in an  unexpected  manner,  the Fund may not achieve the  anticipated
benefits of the hedging  transactions  and may realize a loss. The Fund may also
purchase  and sell  Futures  Contracts  and  Options  on Futures  Contracts  for
non-hedging purposes, subject to applicable law, which involves greater risk and
could result in losses which are not offset by gains on other portfolio assets.

In order to assure that the Fund will not be deemed to be a "commodity pool" for
purposes of the Commodity Exchange Act, regulations of the CFTC require that the
Fund  enter  into  transactions  in  Futures  Contracts  and  Options on Futures
Contracts  only  (i)  for  bona  fide  hedging  purposes  (as  defined  in  CFTC
regulations),  or (ii) for  non-hedging  purposes,  provided  that the aggregate
initial margin and premiums on such non-hedging  positions does not exceed 5% of
the liquidation  value of the Fund's assets.  In addition,  the Fund must comply
with the  requirements of various state  securities laws in connection with such
transactions.

The Fund has adopted the  additional  restriction  that it will not enter into a
Futures Contract if, immediately  thereafter,  the value of securities and other
obligations  underlying all such Futures Contracts would exceed 50% of the value
of the Fund's total  assets.  Moreover,  the Fund will not purchase put and call
options on securities,  on Futures Contracts or on foreign  currencies,  if as a
result, more than 5% of its total assets would be invested in such options.

Futures  Contracts and Options on Futures Contracts that are entered into by the
Fund will be traded on U.S. and foreign exchanges.

FORWARD  CONTRACTS:  The Fund may enter into forward foreign  currency  exchange
contracts ("Forward Contracts") to attempt to minimize the risk to the Fund from
adverse  changes  in the  relationship  between  the  U.S.  dollar  and  foreign
currencies.  A Forward  Contract is an obligation to purchase or sell a specific
currency for an agreed price at a future date which is  individually  negotiated
and privately traded by currency traders and their customers. The Fund may enter
into a Forward  Contract,  for  example,  when it enters into a contract for the
purchase  or sale of a security  denominated  in a foreign  currency in order to
"lock in" the U.S. dollar price of the security. Additionally, for example, when
the Fund  believes  that a foreign  currency  may suffer a  substantial  decline
against the U.S. dollar,  it may enter into a Forward Contract to sell an amount
of that foreign  currency  approximating  the value of some or all of the Fund's
portfolio securities denominated in such foreign currency.  Conversely, when the
Fund believes that the U.S.  dollar may suffer a substantial  decline  against a
foreign  currency,  it may enter  into a Forward  Contract  to buy that  foreign
currency  for a fixed  dollar  amount.  The Fund may also  enter  into a Forward
Contract on one  Currency in order to hedge  against  risk of loss  arising from
fluctuations in the value of a second currency  (referred to as a "Cross-hedge")
if, in the judgment of the Adviser,  a reasonable  degree of correlation  can be
expected  between  movements in the values of the two  currencies.  The Fund has
established  procedures  consistent with the General  Statement of Policy of the
SEC concerning such purchases.  Since that policy  currently  recommends that an
amount of the Fund's assets equal to the amount of the purchase be held aside or
segregated to be used to pay for the commitment, the Fund will always have cash,
high quality debt securities or cash equivalents  available  sufficient to cover
any  commitments  under these  contracts  or to limit any  potential  risk.  The
segregated  account will be marked to market on a daily basis. The Fund may also
be  required  to,  or may elect  to,  receive  delivery  of  foreign  currencies
underlying  Forward  Contracts,  which may involve  certain risks.  The Fund has
established  procedures  consistent  with  statements  of the SEC and its  staff
regarding the use of Forward Contracts by registered investment companies, which
requires use of segregated assets or "cover" in connection with the purchase and
sale of such  contracts.  See  "Investment  Objective and Policies -- Additional
Risk  Factors"  below.  The  Fund has  established  procedures  consistent  with
statements of the SEC and its staff  regarding  the use of Forward  Contracts by
registered investment companies,  which requires the use of segregated assets or
"cover" in connection with the purchase and sale of such contracts.

OPTIONS  ON FOREIGN  CURRENCIES:  The Fund may  purchase  and write put and call
options on foreign  currencies for the purpose of protecting against declines in
the dollar value of foreign  portfolio  securities and against  increases in the
dollar cost of foreign securities to be acquired.  As in the case of other kinds
of  options,  however,  the  writing  of an  option  on  foreign  currency  will
constitute only a partial hedge, up to the amount of the premium  received,  and
the  Fund  could  be  required  to  purchase  or  sell  foreign   currencies  at
disadvantageous  exchange rates,  thereby incurring  losses.  The purchase of an
option  on  foreign   currency  may   constitute  an  effective   hedge  against
fluctuations in exchange rates although,  in the event of rate movements adverse
to the Fund's  position,  it may forfeit the entire  amount of the premium  plus
related transaction costs. Options on foreign currencies written or purchased by
the Fund will be traded on U.S. and foreign exchanges and over-the-counter.  The
Fund may also be  required  to, or may elect to,  receive  delivery  of  foreign
currency  underlying  options on foreign  currencies,  which may involve certain
risks. See "Investment Objective and Policies -- Additional Risk Factors" below.

ADDITIONAL RISK FACTORS:  Although the Fund will enter into certain transactions
in options, Futures Contracts,  Options on Futures Contracts,  Forward Contracts
and  options on foreign  currencies  for  hedging  purposes,  such  transactions
nevertheless  involve  risks.  For example,  a lack of  correlation  between the
instrument underlying an option or Futures Contract and the assets being hedged,
or unexpected adverse price movements,  could render the Fund's hedging strategy
unsuccessful  and could  result in losses.  The Fund also may enter into  option
transactions  and Futures  Contracts and Options on Futures  Contracts for other
than hedging purposes, which involves greater risk. In addition, there can be no
assurance that a liquid secondary  market will exist for any contract  purchased
or sold,  and the Fund may be required to maintain a position  until exercise or
expiration,   which  could  result  in  losses.   The  Statement  of  Additional
Information  contains  a further  description  of  options,  Futures  Contracts,
Options  on  Futures  Contracts,   Forward  Contracts  and  options  on  foreign
currencies,  and a  discussion  of the risks  related to  transactions  therein.
Transactions  entered into for  non-hedging  purposes  involve  greater risk and
could result in losses which are not offset by gains on other portfolio assets.

As a result of its  investments  in  foreign  securities,  the Fund may  receive
interest or dividend payments, or the proceeds of the sale or redemption of such
securities,  in the foreign  currencies in which such securities are denominated
which creates a currency  exchange rate risk. The Fund may also choose to, or be
required  to,  receive  delivery of the foreign  currencies  underlying  Forward
Contracts and options on foreign  currencies it has entered into.  Under certain
circumstances,  such as where the Adviser believes that the applicable  exchange
rate is  unfavorable  at the time the  currencies  are  received  or the Adviser
anticipates, for any other reason, that the exchange rate will improve, the Fund
may hold such currencies for an indefinite  period of time. While the holding of
currencies will permit the Fund to take advantage of favorable  movements in the
applicable exchange rate, such strategy also exposes the Fund to risk of loss if
exchange rates move in a direction  adverse to the Fund's position.  Such losses
could reduce any profits or increase  any losses  sustained by the Fund from the
sale or redemption  of securities  and could reduce the dollar value of interest
or dividend payments received.

Transactions  in  options  may be  entered  into by the  Fund on  United  States
exchanges  regulated by the SEC, in the  over-the-counter  market and on foreign
exchanges,  while  Forward  Contracts  may be entered into only in the over-the-
counter  market.  Futures  Contracts  and  Options on Futures  Contracts  may be
entered  into on United  States  exchanges  regulated by the CFTC and on foreign
exchanges.  In addition, the securities underlying options and Futures Contracts
traded by the Fund may include foreign as well as domestic securities. Investing
in foreign securities and trading in foreign markets involve  considerations and
possible risks not typically associated with investing in domestic securities or
entering  into  transactions  on  domestic  exchanges.   The  value  of  foreign
securities investments will be affected by changes in currency rates or exchange
control  regulations,  changes in  governmental  administration  or  economic or
monetary policy (in this country or abroad) or changed circumstances in dealings
between nations.  Costs may be incurred in connection with  conversions  between
various  currencies.  Moreover,  foreign  issuers are not subject to accounting,
auditing and financial reporting standards and requirements  comparable to those
of  domestic  issuers.  Securities  and  other  instruments  issued or traded in
foreign  countries  may be less liquid and more  volatile  than those  issued or
traded in the United  States and foreign  brokerage  commissions  are  generally
higher than in the United States.  Foreign securities and foreign markets may be
less subject to governmental  supervision than in the United States, and foreign
exchanges may impose different exercise and settlement  procedures.  Investments
in foreign  countries  could be  affected  by other  factors  not present in the
United  States,  including  expropriation,  confiscatory  taxation and potential
difficulties  in  enforcing  contractual  obligations  and could be  subject  to
extended settlement periods.  Over-the-counter transactions also involve certain
risks which may not be present in exchange-traded transactions.

PORTFOLIO  TRADING:  The primary  consideration  in placing  portfolio  security
transactions  is execution at the most  favorable  prices.  Consistent  with the
foregoing  primary  consideration,  the Rules of Fair  Practice of the  National
Association of Securities Dealers,  Inc. (the "NASD") and such other policies as
the Trustees may determine, the Adviser may consider sales of shares of the Fund
and of the other  investment  company  clients of MFS Financial  Services,  Inc.
("FSI"), the Fund's distributor,  as a factor in the selection of broker-dealers
to execute the portfolio  transactions of the Fund. For a further  discussion of
portfolio trading, see "Portfolio Transactions and Brokerage Commissions" in the
Statement of Additional Information.

The policies  described  above are not  fundamental  and may be changed  without
shareholder approval, as may the investment objective of the Fund.

The  Statement  of  Additional   Information  includes  a  discussion  of  other
investment  policies  and a listing of specific  investment  restrictions  which
govern the investment  policies of the Fund and which may not be changed without
shareholder  approval.  See the  "Investment  Restrictions"  in the Statement of
Additional  Information.  The Fund's  investment  limitations  and  policies are
adhered to at the time of purchase or utilization of assets; a subsequent change
in circumstances will not be considered to result in a violation of policy.

5.  MANAGEMENT OF THE FUND

INVESTMENT  ADVISER -- MFS manages the Fund pursuant to an  Investment  Advisory
Agreement, dated May 20, 1982 (the "Advisory Agreement").  MFS provides the Fund
with overall investment advisory and administrative services, as well as general
office facilities.  Joan S. Batchelder,  a Senior Vice President of the Adviser,
has been the Fund's  portfolio  manager  since  1983.  Ms.  Batchelder  has been
employed by the Adviser since 1983. Subject to such policies as the Trustees may
determine,  the  Adviser  makes  investment  decisions  for the Fund.  For these
services  and  facilities,  MFS  receives a  management  fee,  computed and paid
monthly,  on the basis of a formula based upon a percentage of the average daily
net assets of the Fund plus a percentage of its gross income (i.e., income other
than gains from the sale of securities or gains received from futures contracts)
in each case on an  annualized  basis for the  then-current  fiscal  year of the
Fund.  The  applicable  percentages  are reduced as assets and income  reach the
following levels:

<PAGE>
    ANNUAL RATE OF MANAGEMENT FEE           ANNUAL RATE OF MANAGEMENT FEE
  BASED ON AVERAGE DAILY NET ASSETS             BASED ON GROSS INCOME
  ---------------------------------         -----------------------------
  0.220% of the first $200 million        3.00% of the first $22 million
  0.187% of average daily net assets      2.55% of gross income in excess of
     in excess of $200 million               $22 million

For the Fund's fiscal year ended January 31, 1994,  MFS earned  management  fees
under the Advisory  Agreement of $3,284,878  (of which  $1,457,532  was based on
average daily net assets and $1,827,346 on gross income), equivalent to 0.45% of
the Fund's average daily net assets.

MFS also  serves as  investment  adviser  to each of the other  funds in the MFS
Family of Funds (the "MFS  Funds") and to MFS(R)  Municipal  Income  Trust,  MFS
Multimarket  Income Trust, MFS Government Markets Income Trust, MFS Intermediate
Income Trust,  MFS Charter Income Trust,  MFS Special Value Trust,  MFS Variable
Insurance Trust, MFS Institutional Trust, MFS Union Standard Trust, MFS/Sun Life
Series  Trust,  Sun  Growth  Variable  Annuity  Fund,  Inc.  and seven  variable
accounts,  each of which is a registered  investment company  established by Sun
Life  Assurance  Company  of Canada  (U.S.)  ("Sun  Life of Canada  (U.S.)")  in
connection with the sale of Compass-2 and Compass-3  combination  fixed/variable
annuity  contracts.  The MFS Asset Management  Group, a division of the Adviser,
provides investment advice to substantial private clients.

MFS is  America's  oldest  mutual  fund  organization.  MFS and its  predecessor
organizations  have a  history  of money  management  dating  from  1924 and the
founding of the first mutual fund in the United States,  Massachusetts Investors
Trust.   Net  assets  under  the  management  of  the  MFS   organization   were
approximately  $33.6  billion on behalf of  approximately  1.4 million  investor
accounts as of April 30, 1994.  As of such date,  the MFS  organization  managed
approximately  $19.6  billion of assets in fixed  income  funds and fixed income
portfolios of its MFS Asset Management Group. MFS is a subsidiary of Sun Life of
Canada  (U.S.) which in turn is a subsidiary  of Sun Life  Assurance  Company of
Canada  ("Sun  Life").  The  Directors of MFS are A. Keith  Brodkin,  Jeffrey L.
Shames,  Arnold D. Scott, John R. Gardner and John D. McNeil. Mr. Brodkin is the
Chairman,  Mr.  Shames is the  President  and Mr. Scott is the  Secretary  and a
Senior  Executive  Vice  President  of MFS.  Messrs.  McNeil and Gardner are the
Chairman and the President,  respectively,  of Sun Life. Sun Life, a mutual life
insurance company, is one of the largest  international life insurance companies
and  has  been  operating  in the  United  States  since  1895,  establishing  a
headquarters  office here in 1973. The executive officers of MFS report directly
to the Chairman of Sun Life.

A. Keith  Brodkin,  the Chairman and a Director of MFS, is also the Chairman and
President  of the  Trust.  Joan S.  Batchelder,  Cynthia  M.  Brown,  Matthew N.
Fontaine,  Robert J. Manning,  Bernard  Scozzafava,  James T. Swanson, W. Thomas
London,  Stephen E. Cavan, Linda J. Hoard, James O. Yost and James R. Bordewick,
Jr., all of whom are officers of MFS, are officers of the Trust.

DISTRIBUTOR  -- FSI, a wholly owned  subsidiary  of MFS, is the  distributor  of
shares  of the Fund and also  serves  as  distributor  for each of the other MFS
Funds.

SHAREHOLDER SERVICING AGENT -- MFS Service Center, Inc. ("Shareholder  Servicing
Agent"),  a wholly owned subsidiary of MFS, performs  transfer agency,  dividend
disbursing agency and certain other services for the Fund.





6.  INFORMATION CONCERNING SHARES OF THE FUND
PURCHASES
Shares of the Fund may be purchased  at the public  offering  price  through any
securities dealer, certain banks and other financial institutions having selling
agreements with FSI.  Non-securities dealer financial  institutions will receive
transaction  fees that are the same as  commission  fees to dealers.  Securities
dealers and financial institutions may also charge their customers fees relating
to investments in the Fund.

The  Fund  offers  three   classes  of  shares  which  bear  sales  charges  and
distribution fees in different forms and amounts:

CLASS A SHARES.  Class A shares are offered at net asset value per share plus an
initial sales charge (or CDSC in the case of certain  purchases of $1 million or
more) as follows:

                                           SALES CHARGE* AS
                                            PERCENTAGE OF            DEALER
                                    --------------------------   ALLOWANCE AS A
                                                     NET AMOUNT   PERCENTAGE OF
AMOUNT OF PURCHASE                  OFFERING PRICE     INVESTED   OFFERING PRICE
Less than $100,000                      4.75%          4.99%          4.00%
$100,000 but less than $250,000         4.00           4.17           3.20
$250,000 but less than $500,000         2.95           3.04           2.25
$500,000 but less than $1,000,000       2.20           2.25           1.70
$1,000,000 or more                      None**         None**        See Below**


 * Because of  rounding  in the  calculation  of offering  price,  actual  sales
   charges  may be more or less than  those  calculated  using  the  percentages
   above.
** A CDSC may apply in certain  circumstances.  FSI (on behalf of the Fund) will
   also pay a commission on purchases of $1 million or more.

No sales  charge  is  payable  at the  time of  purchase  of  Class A shares  on
investments  of $1  million  or more.  However,  a CDSC shall be imposed on such
investments in the event of a share  redemption  within 12 months  following the
share  purchase,  at the rate of 1% of the  lesser  of the  value of the  shares
redeemed  (exclusive of reinvested  dividends and capital gain distributions) or
the total cost of such shares.

In determining whether a CDSC on such Class A shares is payable, and, if so, the
amount of the charge,  it is assumed that shares not subject to the CDSC are the
first redeemed followed by other shares held for the longest period of time. All
investments  made during a calendar  month,  regardless of when during the month
the  investment  occurred,  will age one  month on the last day of the month and
each subsequent month. Except as noted below, the CDSC on Class A shares will be
waived in the case of: (i)  exchanges  (except  that if the shares  acquired  by
exchange were then redeemed within 12 months of the initial purchase (other than
in connection with subsequent exchanges to other MFS Funds) the charge would not
be waived);  (ii) distributions to participants from a retirement plan qualified
under  section  401(a) of the  Internal  Revenue  Code of 1986,  as amended (the
"Code") (a "Retirement  Plan"),  due to: (a) a loan from the plan (repayments of
loans,  however,  will constitute new sales for purposes of assessing the CDSC);
(b) "financial hardship" of the participant in the plan, as that term is defined
in Treasury Regulation Section  1.401(k)-1(d)(2),  as amended from time to time;
or (c) the death of a participant  in such a plan;  (iii)  distributions  from a
403(b)  plan  or  an  Individual   Retirement  Account  ("IRA")  due  to  death,
disability,  or  attainment  of age 59 1/2;  (iv)  tax-free  returns  of  excess
contributions  to an IRA; (v)  distributions  by other employee benefit plans to
pay  benefits  and (vi)  certain  involuntary  redemptions  and  redemptions  in
connection with certain automatic  withdrawals from a qualified retirement plan.
The CDSC on Class A shares will not be waived,  however,  if the retirement plan
withdraws from the Fund except if that  Retirement  Plan has invested its assets
in Class A shares of one or more of the MFS  Funds  for more than 10 years  from
the later to occur of (i) January 1, 1993 or (ii) the date such  Retirement Plan
first invests its assets in Class A shares of one or more of the MFS Funds,  the
CDSC on Class A shares will be waived in the case of a redemption  of all of the
Retirement  Plan's shares (including shares of any other class) in all MFS Funds
(i.e.,  all the  assets of the  Retirement  Plan  invested  in the MFS Funds are
withdrawn),  unless,  immediately prior to the redemption,  the aggregate amount
invested by the  Retirement  Plan in Class A shares of the MFS Funds  (excluding
the reinvestment of distributions)  during the prior four year period equals 50%
or more of the total value of the Retirement  Plan's assets in the MFS Funds, in
which case the CDSC will not be waived.  Any  applicable  CDSC will be  deferred
upon an exchange of Class A shares of the Fund for units of participation of the
MFS Fixed Fund (a bank collective  investment fund) (the "Units"),  and the CDSC
will be deducted from the redemption  proceeds when such Units are  subsequently
redeemed  (assuming the CDSC is then payable).  No CDSC will be assessed upon an
exchange of Units for Class A shares of the Fund.  For  purposes of  calculating
the CDSC payable upon redemption of Class A shares of the Fund or Units acquired
pursuant to one or more  exchanges,  the period  during which the Units are held
will be aggregated with the period during which the Class A shares are held. The
applicability of the CDSC will be unaffected by transfers of  registration.  FSI
shall receive all CDSCs which it intends to apply for the benefit of the Fund.

FSI allows  discounts  to dealers  (which  are alike for all  dealers)  from the
applicable  public  offering  price, as shown in the above table. In the case of
the maximum sales charge,  the dealer  retains 4% and FSI retains  approximately
3/4 of 1% of the public offering  price.  The sales charge may vary depending on
the  number of shares of the Fund as well as certain  MFS Funds and other  funds
owned or being purchased,  the existence of an agreement to purchase  additional
shares  during a  13-month  period (or a 36-month  period  for  purchases  of $1
million or more) or other special purchase programs.  A description of the Right
of  Accumulation,  Letter of Intent and Group Purchases  privileges by which the
sales  charge  may be  reduced  is set  forth  in the  Statement  of  Additional
Information.  In addition, FSI, on behalf of the Fund and pursuant to the Fund's
Class A  Distribution  Plan,  pays a commission  to dealers who initiate and are
responsible for purchases of $1 million or more as follows: 1.00% on sales up to
$5 million,  plus 0.25% on the amount in excess of $5 million.  Purchases  of $1
million or more for each shareholder  account will be aggregated over a 12-month
period  (commencing  from the date of the first such  purchase)  for purposes of
determining  the level of commissions to be paid during that period with respect
to such account.

Class A shares of the Fund may be sold at their net asset value to the  officers
of the  Trust,  to any of the  subsidiary  companies  of Sun Life,  to  eligible
Directors,  officers, employees (including retired employees) and agents of MFS,
Sun  Life  or  any  of  their  subsidiary  companies,  to  any  trust,  pension,
profit-sharing  or any other benefit plan for such persons,  to any trustees and
retired  trustees of any investment  company for which FSI serves as distributor
or  principal  underwriter,  and to certain  family  members of such persons and
their spouses,  provided the shares will not be resold except to the Fund. Class
A shares of the Fund may be sold at net asset  value to any  employee,  partner,
officer  or  trustee of any  sub-adviser  to any MFS Fund and to certain  family
members  of such  individuals  and  their  spouses,  or to any  trust,  pension,
profit-sharing or other retirement plan for the sole benefit of such employee or
representative,  provided  such  shares  will not be resold  except to the Fund.
Class A shares  of the Fund may  also be sold at their  net  asset  value to any
employee  or  registered   representative  of  any  dealer  or  other  financial
institution  which has a sales agreement with FSI or its affiliates,  to certain
family members of such employees or representatives and their spouses, or to any
trust, pension,  profit-sharing or other retirement plan for the sole benefit of
such  employee  or  representative,  as well  as to  clients  of the  MFS  Asset
Management  Group.  Insurance  company  separate  accounts may purchase  Class A
shares of the Fund at their net asset value. Class A shares of the Fund also may
be sold at net asset  value,  subject to  appropriate  documentation,  through a
dealer  where  the  amount  invested  represents   redemption  proceeds  from  a
registered open-end management  investment company not distributed or managed by
FSI or its  affiliates,  if such  redemption  has  occurred no more than 60 days
prior to the purchase of Class A shares of the Fund and the  shareholder  either
(i) paid an initial  sales  charge or (ii) was at some time  subject to, but did
not  actually  pay, a  deferred  sales  charge  with  respect to the  redemption
proceeds.  Class A shares of the Fund may also be sold at net asset  value where
the amount invested  represents  redemption proceeds from the MFS Fixed Fund. In
addition,  Class  A  shares  of the  Fund  may be  sold at net  asset  value  in
connection with the acquisition or liquidation of the assets of other investment
companies or personal holding companies.  Class A shares of the Fund may also be
purchased  at their  net asset  value by  retirement  plans  where  third  party
administrators of such plans have entered into certain  arrangements with FSI or
its affiliates,  provided that no commission is paid to dealers.  Class A shares
of the Fund may be purchased at net asset value through  certain  broker-dealers
and other financial  institutions which have entered into an agreement with FSI,
which includes a requirement that such shares be sold for the benefit of clients
participating  in a "wrap account" or a similar program under which such clients
pay a fee to such broker-dealer or other financial institution.

Class A shares of the Fund may be  purchased  at net asset  value by  retirement
plans  qualified under section 401(a) or 403(b) of the Code which are subject to
the Employee Retirement Income Security Act of 1974, as amended, as follows:

    (i) the retirement plan and/or the sponsoring organization must subscribe to
    the MFS FUNDamental 401(k) Plan(sm) or another similar Section 401(a) or 403
    (b) recordkeeping program made available by MFS Service Center, Inc.;

    (ii) either (a) the sponsoring  organization must have at least 25 employees
    or (b) the aggregate  purchases by the retirement  plan of Class A shares of
    the MFS Funds must be in an amount of at least $250,000  within a reasonable
    period of time, as determined by FSI in its sole discretion; and

    (iii) a CDSC of 1% will be imposed on such purchases in the event of certain
    redemption transactions within 12 months following such purchases.

Dealers who initiate and are  responsible for purchases of Class A shares of the
Fund in this manner will be paid a commission by FSI, as follows: 1.00% on sales
up to $5 million,  plus 0.25% on the amount in excess of $5  million;  provided,
however,  that FSI may pay a  commission,  on sales in excess of $5  million  to
certain   retirement  plans,  of  1.00%  to  certain  dealers  which,  at  FSI's
invitation,  enter  into an  agreement  with FSI in which the  dealer  agrees to
return any commission paid to it on the sale (or on a pro rata portion  thereof)
if the  shareholder  redeems  his or her  shares  within a period of time  after
purchase  as  specified  by  FSI.  Purchases  of $1  million  or more  for  each
shareholder  account will be aggregated over a 12-month period  (commencing from
the date of the first such  purchase) for purposes of  determining  the level of
commissions to be paid during that period with respect to such account.  Class A
shares  of the  Fund  may be sold  at net  asset  value  through  the  automatic
reinvestment  of Class A and Class B  distributions  which  constitute  required
withdrawals from qualified retirement plans. Class A shares of the Fund may also
be purchased at net asset value where the purchase is in an amount of $3 million
or more and where the dealer and FSI enter into an agreement in which the dealer
agrees to return any  commission  paid to it on the sale (or a pro rata  portion
thereof) as described above if the shareholder  redeems his or her shares within
one year of purchase. (Shareholders who purchase shares at NAV pursuant to these
conditions are called "$3 Million Shareholders"). Furthermore, Class A shares of
the Fund may be sold at net asset value  through the automatic  reinvestment  of
distributions  of dividends and capital gains of other MFS Funds pursuant to the
Distribution  Investment Program (see "Shareholder Services" in the Statement of
Additional Information).

CLASS B SHARES: Class B shares are offered at net asset value without an initial
sales charge but subject to a CDSC as follows:

                  YEAR OF                             CONTINGENT
                REDEMPTION                          DEFERRED SALES
              AFTER PURCHASE                            CHARGE

                    First ...........................   4%*
                    Second ..........................   4%
                    Third ...........................   3%
                    Fourth ..........................   3%
                    Fifth ...........................   2%
                    Sixth ...........................   1%
                    Seventh and following ...........   0%


*Class B shares  purchased  from  January 1, 1993  through  August 31,  1993 are
subject to a CDSC of 5% in the event of a redemption within the first year after
purchase.  

For Class B shares  purchased  prior to January 1, 1993, the Fund imposes a CDSC
as a percentage of  redemption  proceeds as follows:

                  YEAR OF                             CONTINGENT 
                REDEMPTION                          DEFERRED SALES 
              AFTER PURCHASE                            CHARGE
                    First ...........................   6%
                    Second ..........................   5%
                    Third ...........................   4%
                    Fourth ..........................   3%
                    Fifth ...........................   2%
                    Sixth ...........................   1%
                    Seventh and  following ..........   0%

No CDSC is paid upon an exchange of shares. For purposes of calculating the CDSC
upon  redemption  of shares  acquired  in an  exchange,  the  purchase of shares
acquired in one or more  exchanges is deemed to have occurred at the time of the
original purchase of the exchanged  shares.  See "Redemptions and Repurchases --
Contingent Deferred Sales Charge" for further discussion of the CDSC.

The CDSC on Class B shares  will be  waived  upon the  death or  disability  (as
defined in section  72(m)(7) of the Code) of any investor,  provided the account
is registered (i) in the case of a deceased  individual,  solely in the deceased
individual's name, (ii) in the case of a disabled individual,  solely or jointly
in the disabled individual's name or (iii) in the name of a living trust for the
benefit of the deceased or disabled individual.  The CDSC on Class B shares will
also be waived in the case of  redemptions  of shares of the Fund  pursuant to a
systematic  withdrawal  plan.  In  addition,  the CDSC on Class B shares will be
waived in the case of distributions from an IRA, SAR-SEP or any other retirement
plan qualified under section  401(a),  401(k) or 403(b) of the Code due to death
or disability,  or in the case of required minimum  distributions  from any such
retirement  plan due to attainment of age 7012.  The CDSC on Class B shares will
be waived in the case of  distributions  from a retirement  plan qualified under
Sections  401(a) of the Code due to (i)  returns of excess  contribution  to the
plan, (ii)  retirement of a participant in the plan,  (iii) a loan from the plan
(repayments  of loans,  however,  will  constitute  new sales  for  purposes  of
assessing the CDSC),  (iv) "financial  hardship" of the participant in the plan,
as that term is defined in Treasury Regulation  401(k)-1(d)(2),  as amended from
time to time, and (v)  termination of employment of the  participant in the plan
(excluding,  however,  a partial or other  termination of the plan). The CDSC on
Class B shares of the Fund will also be waived upon  redemption  by (i) officers
of the Fund,  (ii) any of the subsidiary  companies of Sun Life,  (iii) eligible
Directors, officers, employees, retired employees and agents of MFS, Sun Life or
any of their subsidiary companies,  (iv) any trust,  pension,  profit-sharing or
any other benefit plan for such persons,  (v) any trustees and retired  trustees
of any  investment  company  for which FSI serves as  distributor  or  principal
underwriter,  and (vi)  certain  family  members of such  individuals  and their
spouses,  provided in each case that the shares will not be resold except to the
Fund.  The CDSC on Class B shares will also be waived in the case of redemptions
by any employee or registered  representative  of any dealer or other  financial
institution  which has a sales  agreement with FSI, by certain family members of
any such employee or representative and their spouses or by any trust,  pension,
profit-sharing or other retirement plan for the sole benefit of such employee or
representative  and by clients of the MFS Asset  Management  Group. A retirement
plan qualified  under section 401(a) of the Code (a "Retirement  Plan") that has
invested  its  assets in Class B shares of one or more of the MFS Funds for more
than 10 years  from the later to occur of (i)  January  1, 1993 or (ii) the date
the Retirement Plan first invests its assets in Class B shares of one or more of
the MFS  Funds  will  have the CDSC on  Class B shares  waived  in the case of a
redemption of all the Retirement Plan's shares (including any Class A shares) in
all MFS Funds (i.e.,  all the assets of the Retirement  Plan invested in the MFS
Funds are withdrawn),  except that if, immediately prior to the redemption,  the
aggregate  amount  invested by the Retirement  Plan in Class B shares of the MFS
Funds (excluding the reinvestment of  distributions)  during the prior four year
period equals 50% or more of the total value of the Retirement  Plan's assets in
the MFS Funds, then the CDSC will not be waived.  The CDSC on Class B shares may
also be waived in connection  with the  acquisition or liquidation of the assets
of other investment companies or personal holding companies. The CDSC on Class B
shares may also be waived in connection  with the  acquisition or liquidation of
the assets of other investment companies or personal holding companies.

CONVERSION OF CLASS B SHARES. Class B shares of the Fund that remain outstanding
for approximately eight years will convert to Class A shares of the Fund. Shares
purchased  through the reinvestment of distributions  paid in respect of Class B
shares  will be  treated as Class B shares for  purposes  of the  payment of the
distribution and service fees under the Distribution  Plan applicable to Class B
shares.  However,  for purposes of conversion to Class A shares, all shares in a
shareholder's  account that were purchased through the reinvestment of dividends
and  distributions  paid in  respect  of  Class B  shares  (and  which  have not
converted to Class A shares as provided in the following  sentence) will be held
in a  separate  sub-account.  Each time any Class B shares in the  shareholder's
account  (other  than those in the  sub-account)  convert  to Class A shares,  a
portion of the Class B shares then in the sub-account will also convert to Class
A shares.  The portion will be  determined  by the ratio that the  shareholder's
Class B shares not acquired through  reinvestment of dividends and distributions
that are  converting to Class A shares bear to the  shareholder's  total Class B
shares not acquired  through  reinvestment.  The conversion of Class B shares to
Class A shares is subject to the  continuing  availability  of a ruling from the
Internal  Revenue Service or an opinion of counsel that such conversion will not
constitute a taxable event for federal tax  purposes.  There can be no assurance
that such ruling or opinion will be  available,  and the  conversion  of Class B
shares  to  Class A shares  will not  occur if such  ruling  or  opinion  is not
available.  In such event, Class B shares would continue to be subject to higher
expenses than Class A shares for an indefinite period.

CLASS C SHARES: Class C shares are offered at net asset value without an initial
sales  charge or a CDSC.  Class C shares do not  convert  to any other  class of
shares of the Fund. The maximum investment in Class C shares that may be made is
$5,000,000 per transaction.

Class C shares are not currently  available for purchase by any retirement  plan
qualified  under Sections  401(a) or 403(b) of the Code if the  retirement  plan
and/or the sponsoring  organization subscribe to the MFS FUNDamental 401(k) Plan
or another similar 401(a) or 403(b) recordkeeping  program made available by MFS
Service Center, Inc.

GENERAL: Except as described below, the minimum initial investment is $1,000 per
account and the minimum additional investment is $50 per account. Accounts being
established for monthly automatic investments and under payroll savings programs
and tax-deferred  retirement programs (other than IRAs) involving the submission
of  investments  by means of group  remittal  statements  are  subject  to a $50
minimum on initial and additional  investments per account.  The minimum initial
investment for IRAs is $250 per account and the minimum additional investment is
$50 per account.  Accounts being  established for participation in the Automatic
Exchange Plan are subject to a $50 minimum on initial and additional investments
per  account.  There are also other  limited  exceptions  to these  minimums for
certain  tax-deferred  retirement  programs.  Any minimums may be changed at any
time at the discretion of FSI. The Fund reserves the right to cease offering its
shares at any time.

For shareholders who elect to participate in certain investment  programs (e.g.,
the  automatic  investment  plan)  or  other  shareholder  services,  FSI or its
affiliates  may either (i) give a gift of  nominal  value,  such as a hand- held
calculator, or (ii) make a nominal charitable contribution on their behalf.

A  shareholder  whose  shares  are held in the name of,  or  controlled  by,  an
investment dealer might not receive many of the privileges and services from the
Fund (such as Right of Accumulation,  Letter of Intent and certain recordkeeping
services) that the Fund ordinarily provides.

The Fund and FSI each reserve the right to reject any specific purchase order or
to  restrict   purchases  by  a  particular   purchaser  (or  group  of  related
purchasers).  The Fund or FSI may reject or restrict any purchases of the Fund's
shares by a  particular  purchaser  or group,  for  example,  when a pattern  of
frequent  purchases  and  sales  of  shares  of the Fund is  evident,  or if the
purchase and sale orders are, or a subsequent  abrupt  redemption might be, of a
size  that  would  disrupt  management  of the  Fund.  The Fund  and FSI  intend
specifically to exercise this right in order to reject or restrict  purchases by
market timers (including asset allocators) and the shareholder(s) whose accounts
are  exchanged  periodically  based on an  arrangement  with or advice from such
persons or whose  transactions  seem to follow a timing pattern.  In particular,
action may be taken if: (i) more than two exchange  purchases  are effected in a
timed account in the same calendar  quarter;  or (ii) a purchase would result in
shares being held in timed accounts by an individual or firm  representing  more
than (x) one percent of the Fund's net assets or (y) specified dollar amounts in
the case of certain funds in the MFS Family of Funds, which may include the Fund
and which may change from time to time.  The Fund and FSI each reserve the right
to request  holders of timed accounts to redeem their shares at net asset value,
less any CDSC otherwise applicable, if either of these restrictions is violated.

Securities  dealers  and other  financial  institutions  may  receive  different
compensation with respect to sales of Class A, Class B and Class C shares.

The Glass-Steagall Act prohibits national banks from engaging in the business of
underwriting,  selling or  distributing  securities.  Although  the scope of the
prohibition has not been clearly defined,  FSI believes that such Act should not
preclude  banks from  entering  into agency  agreements  with FSI (as  described
above).  If, however,  a bank were prohibited from so acting, the Trustees would
consider  what  actions,  if any,  would be  necessary  to  continue  to provide
efficient  and  effective   shareholder   services.  It  is  not  expected  that
shareholders would suffer any adverse financial consequence as a result of these
occurrences.  In addition,  state  securities laws on this issue may differ from
the  interpretation  of federal  law  expressed  herein and banks and  financial
institutions  may be required to  register as  broker-dealers  pursuant to state
law.

EXCHANGES
Subject to the  requirements  set forth  below,  some or all of the shares in an
account with the Fund for which payment has been received by the Fund (i.e.,  an
established account) may be exchanged for shares of the same class of any of the
other MFS Funds at net asset value, (if available for sale). In addition,  Class
C shares may be  exchanged  for shares of the MFS Money Market Fund at net asset
value.  Shares of one class may not be exchanged  for shares of any other class.
Exchanges  will be made only after  instructions  in writing or by telephone (an
"Exchange  Request") are received for an established  account by the Shareholder
Servicing  Agent in proper  form  (i.e.,  if in  writing -- signed by the record
owner(s) exactly as the shares are registered; if by telephone -- proper account
identification  is  given by the  dealer  or  shareholder  of  record)  and each
exchange must involve either shares having an aggregate value of at least $1,000
($50 in the case of retirement plan participants whose sponsoring  organizations
subscribe  to  the  MFS  FUNDamental  401(k)  Plan  or  another  similar  401(k)
recordkeeping  system made  available  by MFS Service  Center,  Inc.) or all the
shares in the  account.  If an Exchange  Request is received by the  Shareholder
Servicing Agent on any business day prior to the close of regular trading on the
New York Stock  Exchange (the  "Exchange"),  the exchange  usually will occur on
that day if all the requirements set forth above have been complied with at that
time.  No more than five  exchanges  may be made in any one Exchange  Request by
telephone.   Additional  information  concerning  this  exchange  privilege  and
prospectuses  for any of the other MFS Funds  may be  obtained  from  investment
dealers or the  Shareholder  Servicing  Agent.  A  shareholder  should  read the
prospectus of the other MFS Fund and consider the  differences in objectives and
policies before making any exchange.  For federal and  (generally)  state income
tax  purposes,  an  exchange is treated as a sale of the shares  exchanged  and,
therefore,  an exchange could result in a gain or loss to the shareholder making
the exchange.  Exchanges by telephone are  automatically  available to most non-
retirement  plan  accounts and certain  retirement  plan  accounts.  For further
information  regarding  exchanges by telephone,  see "Redemptions by Telephone".
The exchange  privilege (or any aspect of it) may be changed or discontinued and
is subject to certain  limitations,  including certain restrictions on purchases
by market timer accounts (see "Purchases").

REDEMPTIONS AND REPURCHASES
A  shareholder  may  withdraw all or any portion of the amount in his account on
any date on which the Fund is open for business by redeeming shares at their net
asset  value  or by  selling  such  shares  to the  Fund  through  a  dealer  (a
repurchase).  Since the net asset  value of  shares  of the  account  fluctuate,
redemptions or repurchases, which are taxable transactions, are likely to result
in gains or losses to the  shareholder.  When a shareholder  withdraws an amount
from his account,  the  shareholder  is deemed to have tendered for redemption a
sufficient  number of full and  fractional  shares in his  account  to cover the
amount  withdrawn.  The proceeds of a redemption or repurchase  will normally be
available within seven days, except for shares purchased or received in exchange
for shares purchased by check (including  certified checks or cashier's checks).
Payment of redemption proceeds may be delayed for 15 days from the purchase date
in an effort to assure  that such  check  has  cleared.  Payment  of  redemption
proceeds may be delayed for up to seven days if the Fund  determines that such a
delay would be in the best interest of all its shareholders.

A.  REDEMPTION  BY MAIL -- Each  shareholder  has the right to redeem all or any
portion of the shares in his account by mailing or delivering to the Shareholder
Servicing  Agent  (see back  cover for  address)  a stock  power  with a written
request  for  redemption  or  letter  of  instruction,  together  with his share
certificates  (if any were  issued),  all in "good  order" for  transfer.  "Good
order"  generally  means that the stock power,  written  request for redemption,
letter of  instruction or  certificate  must be endorsed by the record  owner(s)
exactly as the shares are registered and the signature(s)  must be guaranteed in
the manner set forth below under the caption "Signature Guarantee." In addition,
in some cases "good order" will require the furnishing of additional  documents.
The Shareholder  Servicing  Agent may make certain de minimis  exceptions to the
above  requirements  for  redemption.  Within  seven  days  after  receipt  of a
redemption request by the Shareholder  Servicing Agent in "good order", the Fund
will make  payment in cash of the net asset value of the shares next  determined
after  such  redemption  request  was  received,  reduced  by the  amount of any
applicable  CDSC described above and the amount of any income tax required to be
withheld, except during any period in which the right of redemption is suspended
or date of payment is  postponed  because  the  Exchange is closed or trading on
such Exchange is restricted or to the extent otherwise permitted by the 1940 Act
if an emergency exists (see "Tax Status").

B.  REDEMPTION  BY TELEPHONE -- Each  shareholder  may redeem an amount from his
account by  telephoning  toll-free at (800)  225-2606.  Shareholders  wishing to
avail themselves of this telephone  redemption  privilege must so elect on their
Account  Application,  designate thereon a commercial bank and account number to
receive the proceeds of such redemption,  and sign the Account  Application Form
with the signature(s) guaranteed in the manner set forth below under the caption
"Signature Guarantee". The proceeds of such a redemption,  reduced by the amount
of any applicable CDSC described above and the amount of any income tax required
to be withheld,  are mailed by check to the designated account,  without charge.
As a special service, investors may arrange to have proceeds in excess of $1,000
wired in federal  funds to the  designated  account.  If a telephone  redemption
request is received by the  Shareholder  Servicing Agent by the close of regular
trading on the  Exchange  on any  business  day,  shares will be redeemed at the
closing  net asset  value of the Fund on that  day.  Subject  to the  conditions
described in this section, proceeds of a redemption are normally mailed or wired
on the  next  business  day  following  the date of  receipt  of the  order  for
redemption.  The  Shareholder  Servicing  Agent will not be responsible  for any
losses  resulting  from  unauthorized   telephone  transactions  if  it  follows
reasonable  procedures  designed  to verify  the  identity  of the  caller.  The
Shareholder  Servicing Agent will request personal or other information from the
caller,  and will  normally also record  calls.  Shareholders  should verify the
accuracy of confirmation statements immediately after their receipt.

C.  REPURCHASE THROUGH A DEALER -- If a shareholder desires to sell his shares
at net asset value through his securities dealer (a repurchase), the
shareholder can place a repurchase order with his dealer, who may charge the
shareholder a fee. IF THE DEALER RECEIVES THE SHAREHOLDER'S ORDER PRIOR TO THE
CLOSE OF REGULAR TRADING ON THE EXCHANGE AND COMMUNICATES IT TO FSI ON THE
SAME DAY BEFORE FSI CLOSES FOR BUSINESS, THE SHAREHOLDER WILL RECEIVE THE NET
ASSET VALUE CALCULATED ON THAT DAY.

SIGNATURE  GUARANTEE:  In order to  protect  shareholders  against  fraud to the
greatest extent  possible,  the Fund requires in certain  instances as indicated
above  that the  shareholder's  signature  be  guaranteed.  In these  cases  the
shareholder's  signature must be guaranteed by an eligible bank, broker, dealer,
credit union, national securities exchange,  registered securities  association,
clearing agency or savings  association.  Signature guarantees shall be accepted
in accordance with policies established by the Shareholder Servicing Agent.

Shareholders of the Fund who have redeemed their shares have a one-time right to
reinvest the  redemption  proceeds in the same class of shares of any of the MFS
Funds (if shares of such Fund are available for sale) at net asset value (with a
credit  for any CDSC  paid)  within 90 days of the  redemption  pursuant  to the
Reinstatement  Privilege.  If the  shares  credited  for any CDSC  paid are then
redeemed within six years of the initial  purchase in the case of Class B shares
or within 12 months of the initial purchase for certain Class A share purchases,
a CDSC will be imposed upon redemption.  Such purchases under the  Reinstatement
Privilege  are  subject  to all  limitations  in  the  Statement  of  Additional
Information regarding this privilege.

Subject to the  Fund's  compliance  with  applicable  regulations,  the Fund has
reserved the right to pay the  redemption or  repurchase  price of shares of the
Fund,  either  totally or  partially,  by a  distribution  in kind of securities
(instead of cash) from the Fund's portfolio.  The securities distributed in such
a  distribution  would be valued at the same amount as that  assigned to them in
calculating  the net asset  value for the shares  being sold.  If a  shareholder
received a  distribution  in kind,  the  shareholder  could incur  brokerage  or
transaction charges when converting the securities to cash.

Due to the relatively high cost of maintaining small accounts, the Fund reserves
the right to redeem  shares in any account for their  then-current  value (which
will be promptly paid to the shareholder) if at any time the total investment in
such  account  drops below $500  because of  redemptions,  except in the case of
accounts being established for monthly automatic investments and certain payroll
savings programs,  Automatic Exchange Plan accounts and tax-deferred  retirement
plans,  for  which  there  is  a  lower  minimum  investment  requirement.   See
"Purchases".  Shareholders  will be notified  that the value of their account is
less than the  minimum  investment  requirement  and  allowed 60 days to make an
additional  investment  before  the  redemption  is  processed.  No CDSC will be
imposed with respect to such involuntary redemptions.

CONTINGENT  DEFERRED  SALES CHARGE --  Investments  in Class A or Class B shares
("Direct Purchases") will be subject to a CDSC for a period of 12 months (in the
case of  purchases of $1 million or more of Class A shares) or six years (in the
case of purchases of Class B shares).  Purchases of Class A shares made during a
calendar  month,  regardless of when during the month the  investment  occurred,
will age one month on the last day of the month and each subsequent month. Class
B shares  purchased on or after January 1, 1993 will be aggregated on a calendar
month basis -- all transactions made during a calendar month, regardless of when
during the month they have occurred,  will age one year at the close of business
on the last day of such month in the following calendar year and each subsequent
year.  For  Class B shares  of the Fund  purchased  prior to  January  1,  1993,
transactions  will be aggregated  on a calendar year basis - - all  transactions
made  during a  calendar  year,  regardless  of when  during  the year they have
occurred, will age one year at the close of business on December 31 of that year
and each subsequent  year. At the time of a redemption,  the amount by which the
value of a shareholder's  account for a particular  class  represented by Direct
Purchases  exceeds the sum of the six calendar year  aggregations  (12 months in
the case of  purchases  of $1  million  or more of  Class A  shares)  of  Direct
Purchases may be redeemed without charge ("Free Amount").  Moreover,  no CDSC is
ever assessed on additional  shares acquired through the automatic  reinvestment
of dividends or capital gain distributions ("Reinvested Shares").

Therefore,  at the time of redemption of a particular class, (i) any Free Amount
is not  subject to the CDSC and (ii) the amount of the  redemption  equal to the
then-current  value of Reinvested  Shares is not subject to the CDSC,  but (iii)
any amount of the  redemption  in excess of the  aggregate of the then-  current
value of  Reinvested  Shares and the Free Amount is subject to a CDSC.  The CDSC
will first be applied  against the amount of Direct  Purchases which will result
in any such charge being  imposed at the lowest  possible  rate.  The CDSC to be
imposed  upon  redemptions  of  shares  will  be  calculated  as  set  forth  in
"Purchases" above.

The  applicability  of a CDSC will be  unaffected  by  exchanges or transfers of
registration.

DISTRIBUTION PLANS
The Trustees have adopted separate  distribution  plans for Class A, Class B and
Class C shares  pursuant  to  Section  12(b)  of the  1940  Act and  Rule  12b-1
thereunder  (the  "Rule")  after  having  concluded  that there is a  reasonable
likelihood that the plans would benefit the Fund and its shareholders.

     CLASS A DISTRIBUTION  PLAN. The Class A Distribution Plan provides that the
Fund  will  pay  FSI a  distribution/service  fee  aggregating  up to  (but  not
necessarily all of) 0.35% of the average daily net assets  attributable to Class
A shares  annually  in order  that FSI may pay  expenses  on  behalf of the Fund
related to the distribution and servicing of Class A shares.  The expenses to be
paid by FSI on behalf of the Fund  include a service fee to  securities  dealers
which enter into a sales agreement with FSI of up to 0.25% of the Fund's average
daily net assets  attributable to Class A shares that are owned by investors for
whom such  securities  dealer is the  holder  or dealer of  record.  This fee is
intended to be partial  consideration  for all personal  services and/or account
maintenance  services rendered by the dealer with respect to Class A shares. FSI
may from time to time reduce the amount of the service fee for shares sold prior
to a certain  date.  Currently,  the  service  fee paid to dealers is reduced to
0.15%  for  shares  purchased  prior  to March 1,  1991.  FSI may also  retain a
distribution fee of 0.10% of the Fund's average daily net assets attributable to
Class A shares as partial  consideration  for  services  performed  and expenses
incurred  in  the  performance  of  FSI's  obligations  under  its  distribution
agreement  with  the  Fund.  FSI,  however,  is  currently  waiving  this  0.10%
distribution fee and will not accept payment of this fee unless it first obtains
the  approval  of the Board of  Trustees.  In  addition,  to the extent that the
aggregate of the  foregoing  fees does not exceed 0.35% per annum of the average
daily  net  assets  of the  Fund  attributable  to Class A  shares,  the Fund is
permitted to pay other distribution-related  expenses,  including commissions to
dealers  and  payments  to  wholesalers  employed by FSI for sales at or above a
certain  dollar  level.  Fees payable  under the Class A  Distribution  Plan are
charged to, and therefore  reduce,  income allocated to Class A shares.  Service
fees may be  reduced  for a  securities  dealer  that is the holder or dealer of
record for an  investor  who owns shares of the Fund having a net asset value at
or above a certain  dollar  level.  Dealers may from time to time be required to
meet certain  criteria in order to receive  service fees.  FSI or its affiliates
are entitled to retain all service fees payable  under the Class A  Distribution
Plan for which there is no dealer of record or for which qualification standards
have not been met as partial  consideration for personal services and/or account
maintenance  services  performed  by  FSI  or  its  affiliates  for  shareholder
accounts.  Certain  banks  and other  financial  institutions  that have  agency
agreements  with FSI will receive service fees that are the same as service fees
to dealers.

     CLASS B DISTRIBUTION  PLAN. The Class B Distribution Plan provides that the
Fund will pay FSI a daily  distribution fee equal on an annual basis to 0.75% of
the Fund's average daily net assets  attributable to Class B shares and will pay
FSI a  service  fee of up to  0.25%  of the  Fund's  average  daily  net  assets
attributable to Class B shares (which FSI will in turn pay to securities dealers
which  enter  into a sales  agreement  with  FSI at a rate of up to 0.25% of the
Fund's  average  daily  net  assets  attributable  to  Class B  shares  owned by
investors for whom that securities dealer is the holder or dealer record).  This
service fee is intended to be additional consideration for all personal services
and/or account maintenance services rendered by the dealer with respect to Class
B shares.  Fees payable under the Class B Distribution  Plan are charged to, and
therefore reduce,  income allocated to Class B shares.  The Class B Distribution
Plan also  provides  that FSI will  receive  all CDSCs  attributable  to Class B
shares  (see  "Redemptions  and  Repurchases"  above),  which do not  reduce the
distribution  fee. FSI will pay  commissions to dealers of 3.75% of the purchase
price of Class B shares  purchased  through  dealers.  FSI will also  advance to
dealers  the first year  service  fee at a rate  equal to 0.25% of the  purchase
price of such shares and, as compensation  therefor,  FSI may retain the service
fee paid by the Fund  with  respect  to such  shares  for the first  year  after
purchase.  Therefore,  the total amount paid to a dealer upon the sale of shares
is 4.00% of the  purchase  price of the  shares  (commission  rate of 3.75% plus
service fee equal to 0.25% of the purchase price).  Dealers will become eligible
for  additional  service  fees with  respect to such  shares  commencing  in the
thirteenth month following  purchase.  Dealers may from time to time be required
to meet certain criteria in order to receive service fees. FSI or its affiliates
are entitled to retain all service fees payable  under the Class B  Distribution
Plan for which there is no dealer of record or for which qualification standards
have not been met as partial  consideration for personal services and/or account
maintenance  services  performed  by  FSI  or  its  affiliates  for  shareholder
accounts.  The  purpose of the  distribution  payments  to FSI under the Class B
Distribution  Plan is to  compensate  FSI for its  distribution  services to the
Fund. Since FSI's compensation is not directly tied to its expenses,  the amount
of  compensation  received  by FSI  during any year may be more or less than its
actual expenses.  For this reason,  this type of distribution fee arrangement is
characterized  by the staff of the SEC as being of the  "compensation"  variety.
However,  the Fund is not liable for any  expenses  incurred by FSI in excess of
the amount of compensation it receives.  The expenses incurred by FSI, including
commissions to dealers,  are likely to be greater than the distribution fees for
the next several years, but thereafter such expenses may be less than the amount
of the distribution  fees.  Certain banks and other financial  institutions that
have agency agreements with FSI will receive agency transaction and service fees
that are the same as commissions and service fees to dealers.

     CLASS C DISTRIBUTION  PLAN. The Class C Distribution Plan provides that the
Fund will pay FSI a  distribution  fee of up to 0.75%  per  annum of the  Fund's
average  daily  net  assets  attributable  to Class C shares  and will pay FSI a
service  fee of up to 0.25% per annum of the  Fund's  average  daily net  assets
attributable  to Class C shares  (which FSI in turn pays to  securities  dealers
which enter into a sales  agreement  with FSI at a rate of up to 0.25% per annum
of the Fund's daily net assets attributable to Class C shares owned by investors
for whom that  securities  dealer  is the  holder  or  dealer  of  record).  The
distribution/service  fees attributable to Class C shares are designed to permit
an  investor  to  purchase  such  shares  through a  broker-dealer  without  the
assessment of an initial sales charge or a CDSC while allowing FSI to compensate
broker-dealers  in connection  with the sale of such shares.  The service fee is
intended to be additional consideration for all personal services and/or account
maintenance  services  rendered  with  respect  to  Class C  shares.  FSI or its
affiliates  are entitled to retain all service  fees  payable  under the Class C
Distribution  Plan with  respect  to  accounts  for which  there is no dealer of
record as partial consideration for personal services and/or account maintenance
services  performed  by FSI or its  affiliates  for  shareholder  accounts.  The
purpose of the distribution  payments to FSI under the Class C Distribution Plan
is to compensate  FSI for its  distribution  services to the Fund.  Distribution
payments  under  the  Plan  will  be  used by FSI to pay  securities  dealers  a
distribution  fee in an amount  equal on an annual  basis to 0.75% of the Fund's
average daily net assets  attributable  to Class C shares owned by investors for
whom that securities dealer is the holder or dealer of record.  (Therefore,  the
total amount of distribution/service fees paid to a dealer on an annual basis is
1.00% of the  Fund's  average  daily net assets  attributable  to Class C shares
owned by  investors  for whom the  securities  dealer is the holder or dealer of
record.) FSI also pays  expenses of printing  prospectuses  and reports used for
sales  purposes,  expenses with respect to the preparation and printing of sales
literature  and  other  distribution   related  expenses,   including,   without
limitation,  the  compensation  of  personnel  and all costs of  travel,  office
expense and  equipment.  Since FSl's  compensation  is not directly  tied to its
expenses, the amount of compensation received by FSI during any year may be more
or less than its actual expenses. For this reason, this type of distribution fee
arrangement  is  characterized  by  the  staff  of  the  SEC  as  being  of  the
"compensation"  variety.  However,  the  Fund is not  liable  for  any  expenses
incurred by FSI in excess of the amount of  compensation  it  receives.  Certain
banks and other financial institutions that have agency agreements with FSI will
receive agency  transaction  and service fees that are the same as  distribution
fees and service fees to dealers.  Fees payable  under the Class C  Distribution
Plan are charged to, and therefore reduce, income allocated to Class C shares.

DISTRIBUTIONS
The Fund intends to declare daily and pay to its shareholders  substantially all
of its  net  investment  income  as  dividends  on a  monthly  basis.  Dividends
generally are  distributed on the first business day of the following  month. In
addition,  the Fund will make one or more distributions during the calendar year
to its shareholders  from any long-term  capital gains, and may also make one or
more distributions  during the calendar year to its shareholders from short-term
capital  gains.  Shareholders  may elect to receive  dividends  and capital gain
distributions in either cash or additional shares of the same class with respect
to which a  distribution  is made.  All  distributions  not paid in cash will be
reinvested in shares of the class in which the  distribution  is paid.  See "Tax
Status" and "Shareholder Services -- Distribution Options" below.  Distributions
paid by the Fund with  respect to Class A shares will  generally be greater than
those  paid  with  respect  to  Class B and  Class  C  shares  because  expenses
attributable to Class B and Class C shares will generally be higher.

TAX STATUS
The Fund is treated as an entity separate from the other series of the Trust for
federal  income  tax  purposes.  In order to  minimize  the taxes the Fund would
otherwise  be  required  to pay,  the Fund  intends  to  qualify  each year as a
"regulated  investment  company"  under  Subchapter  M of the Code,  and to make
distributions  to its  shareholders in accordance  with the timing  requirements
imposed by the Code.  It is  expected  that the Fund will not be required to pay
any entity level federal income or excise taxes, although  foreign-source income
received by the Fund may be subject to foreign withholding taxes.

Shareholders of the Fund normally will have to pay federal income taxes, and any
state or local taxes, on dividends and capital gain  distributions from the Fund
whether paid in cash or additional shares. A statement setting forth the federal
income status of all dividends and  distributions  for that year,  including any
portion  taxable as ordinary  income,  any portion taxable as long- term capital
gains, the portion, if any, representing a return of capital (which is generally
free of current taxes,  but results in a basis  reduction),  and the amount,  if
any, of federal  income tax withheld will be sent to each  shareholder  promptly
after the end of such year.

The Fund  intends  to  withhold  U.S.  federal  income tax at the rate of 30% on
dividends and certain other  payments that are subject to such  withholding  and
that are made to persons who are neither  citizens  nor  residents  of the U.S.,
regardless of whether a lower rate may be permitted under an applicable  treaty.
The Fund is also required in certain  circumstances to apply  withholding of 31%
of taxable dividends and redemption proceeds paid to any shareholder  (including
a shareholder  who is neither a citizen nor a resident of the U.S.) who does not
furnish to the Fund certain  information and  certifications or who is otherwise
subject to backup withholding.  However,  backup withholding will not be applied
to payments which have been subject to 30% withholding.

Prospective  investors should read the Fund's Account Application for additional
information  regarding  backup  withholding  of  federal  income  tax and should
consult  their  own  tax  adviser  as to the  tax  consequences  to  them  of an
investment in the Fund.

NET ASSET VALUE
The net asset value per share of each class of the Fund is  determined  each day
during which the Exchange is open for trading.  This  determination is made once
each day as of the close of regular  trading on the  Exchange by  deducting  the
amount of the liabilities attributable to the class from the value of the Fund's
assets  attributable  to the class and dividing the  difference by the number of
shares of the class  outstanding.  Assets in the Fund's  portfolio are valued on
the basis of valuations  furnished by a pricing  service or at their fair value,
as described in the Statement of Additional Information.  The net asset value of
each class of shares is effective for orders received by the dealer prior to its
calculation and received by FSI, prior to the close of that business day.

DESCRIPTION OF SHARES, VOTING RIGHTS AND LIABILITIES

The Fund, one of two series of the Trust, has three classes of shares,  entitled
Class A, Class B and Class C Shares of Beneficial  Interest (without par value).
The Trust has  reserved  the right to create and issue  additional  classes  and
series  of  shares,  in which  case  each  class  of  shares  of a series  would
participate  equally in the earnings,  dividends and assets attributable to that
class of shares of that particular series. Shareholders are entitled to one vote
for each  share  held and  shares  of each  series  would  be  entitled  to vote
separately to approve  investment  advisory  agreements or changes in investment
restrictions,  but shares of all series  would vote  together in the election of
Trustees and selection of accountants.  Additionally,  each class of shares of a
series will vote  separately  on any  material  increases  in the fees under its
Distribution  Plan or on any  other  matter  that  affects  solely  its class of
shares, but will otherwise vote together with all other classes of shares of the
series  on all  other  matters.  The  Trust  does  not  intend  to  hold  annual
shareholder  meetings.  The  Declaration of Trust provides that a Trustee may be
removed from office in certain  instances (see  "Description  of Shares,  Voting
Rights and Liabilities" in the Statement of Additional Information).

Each share of a class of the Fund represents an equal proportionate  interest in
the Fund with each other class share,  subject to any liabilities of that class.
Shares have no  pre-emptive  or conversion  rights (except as set forth above in
"Purchases  --  Conversion  of  Class B  Shares").  Shares  are  fully  paid and
non-assessable.  Should the Fund be liquidated,  the  shareholders of each class
would be entitled to share pro rata in its net assets attributable to that class
available for distribution to  shareholders.  Shares will remain on deposit with
the Shareholder  Servicing Agent and  certificates  will not be issued except in
connection   with  pledges  and   assignments   and  in  certain  other  limited
circumstances.

The Trust is an entity of the type commonly known as a  "Massachusetts  business
trust." Under Massachusetts law, shareholders of such a trust may, under certain
circumstances,  be held  personally  liable  as  partners  for its  obligations.
However,  the risk of a  shareholder  incurring  financial  loss on  account  of
shareholder  liability  is limited  to  circumstances  in which both  inadequate
insurance (e.g.,  fidelity bonding and errors and omissions  insurance)  existed
and the Trust itself was unable to meet its obligations.





PERFORMANCE INFORMATION

From time to time, the Fund will provide yield,  current  distribution  rate and
total rate of return quotations for each class of shares and may also quote fund
rankings in the relevant fund category from various sources,  such as the Lipper
Analytical Services,  Inc. and Wiesenberger  Investment Companies Service. Yield
quotations  will be based on the  annualized  net  investment  income  per share
allocated to each class of the Fund over a 30-day  period stated as a percent of
the maximum public  offering price of that class on the last day of that period.
Yield  calculations  for  Class B shares  assume  no CDSC is paid.  The  current
distribution  rate for each class is  generally  based upon the total  amount of
dividends  per share paid by the Fund to  shareholders  of that class during the
past twelve  months and is computed by dividing the amount of such  dividends by
the  maximum  public  offering  price of that  class at the end of such  period.
Current  distribution  rate  calculations  for Class B shares  assume no CDSC is
paid. The current  distribution rate differs from the yield calculation  because
it may include  distributions to shareholders  from sources other than dividends
and interest,  such as premium income from option  writing,  short-term  capital
gains, and return of invested capital, and is calculated over a different period
of time.  Total  rate of return  quotations  will  reflect  the  average  annual
percentage  change over  stated  periods in the value of an  investment  in each
class of shares of the Fund made at the maximum public  offering price of shares
of that class with all distributions reinvested and which, if quoted for periods
of six years or less,  will give effect to the  imposition  of the CDSC assessed
upon  redemptions  of the  Fund's  Class B  shares.  Such  total  rate of return
quotations may be  accompanied by quotations  which do not reflect the reduction
in value of the initial investment due to the sales charge or the deduction of a
CDSC, and which will thus be higher. All performance  quotations of the Fund are
based  on  historical  performance  and  are not  intended  to  indicate  future
performance.  Yield  reflects only net portfolio  income as of a stated time and
current  distribution  rate reflects only the rate of distributions  paid by the
Fund over a stated  period of time,  while  total  rate of return  reflects  all
components of investment  return over a stated period of time. The quotations of
the Fund may from time to time be used in advertisements, shareholder reports or
other  communications  to shareholders.  For a discussion of the manner in which
the Fund will calculate its yield,  current  distribution rate and total rate of
return, see the Statement of Additional Information.  In addition to information
provided in shareholder reports,  the Fund may, in its discretion,  from time to
time,  make a list of all or a portion of its  holdings  available  to investors
upon request.

7.  SHAREHOLDER SERVICES

Shareholders with questions  concerning the shareholder services described below
or  concerning  other  aspects  of the  Fund,  should  contact  the  Shareholder
Servicing Agent (see back cover for address and phone number).

ACCOUNT  AND   CONFIRMATION   STATEMENTS  --  Each   shareholder   will  receive
confirmation  statements showing the transaction activity in his account. At the
end of each calendar year, each shareholder will receive  information  regarding
the tax status of all reportable  dividends and distributions for that year (see
"Tax Status").

DISTRIBUTION  OPTIONS -- The  following  options are  available  to all accounts
(except  Systematic  Withdrawal  Plan  accounts)  and may be changed as often as
desired by notifying the Shareholder Servicing Agent:

    -- Dividends  and  capital  gain  distributions   reinvested  in  additional
       shares. This option will be assigned if no other option is specified.

    -- Dividends  (including   short-term  capital  gains)  in  cash;  long-term
       capital gain distributions reinvested in additional shares.

    -- Dividends and capital gain distributions in cash.

Reinvestments  (net of any tax withholding)  will be made in additional full and
fractional  shares of the same class of shares at the net asset  value in effect
at the close of  business  on the  record  date.  Dividends  and  capital  gains
distributions  in amounts  less than $10 will  automatically  be  reinvested  in
additional shares of the Fund. Any request to change a distribution  option must
be received by the Shareholder Servicing Agent by the record date for a dividend
or distribution in order to be effective for that dividend or  distribution.  No
interest  will  accrue  on  amounts  represented  by  uncashed  distribution  or
redemption checks.

INVESTMENT AND WITHDRAWAL  PROGRAMS -- For the convenience of shareholders,  the
Fund makes available the following  programs designed to enable  shareholders to
add to their  investment  in an account with the Fund or withdraw from it with a
minimum of paper work.  The  programs  involve no extra  charge to  shareholders
(other than a sales charge in the case of certain Class A share  purchases)  and
may be changed or discontinued at any time by a shareholder or the Fund.

     LETTER  OF  INTENT:  If a  shareholder  (other  than a group  purchaser  as
described in the Statement of  Additional  Information)  anticipates  purchasing
$100,000  or more of Class A shares  of the Fund  alone or in  combination  with
shares  of  Class B or Class C of the Fund or any of the  classes  of other  MFS
Funds or MFS Fixed Fund (a bank  collective  investment  fund) within a 13-month
period (or 36-month period for purchases of $1 million or more), the shareholder
may obtain such shares of the Fund at the same  reduced  sales  charge as though
the total quantity were invested in one lump sum,  subject to escrow  agreements
and the appointment of an attorney for redemptions from the escrow amount if the
intended purchases are not completed, by completing the Letter of Intent section
of the Account Application.

     RIGHT OF  ACCUMULATION:  A shareholder  qualifies for  cumulative  quantity
discounts on purchases of Class A shares when his new investment,  together with
the current  offering  price  value of all  holdings of the Class A, Class B and
Class C shares of that  shareholder  in the MFS Funds or MFS Fixed  Fund (a bank
collective investment fund) reaches a discount level.

    DISTRIBUTION INVESTMENT PROGRAM: Shares of a particular class of the Fund
may be sold at net asset value (and without any applicable CDSC) through the
automatic reinvestment of dividend and capital gain distributions from the
same class of any other MFS Fund. Furthermore, distributions made by the Fund
may be automatically invested at net asset value (and without any applicable
CDSC) in shares of the same class of another MFS Fund, if shares of such Fund
are available for sale.

     SYSTEMATIC WITHDRAWAL PLAN: A shareholder (except a $3 Million Shareholder)
may direct the Shareholder Servicing Agent to send him (or anyone he designates)
regular periodic  payments,  as designated on the Account  Application and based
upon the value of his account.  Each payment under a Systematic  Withdrawal Plan
(a "SWP") must be at least $100,  except in certain limited  circumstances.  The
aggregate  withdrawals  of Class B shares in any year pursuant to a SWP will not
be  subject  to any CDSC and  generally  are  limited to 10% of the value of the
account at the time of the establishment of the SWP. The CDSC will not be waived
in the case of SWP redemptions of Class A shares which are subject to a CDSC.

DOLLAR COST AVERAGING PROGRAMS --
     AUTOMATIC  INVESTMENT  PLAN:  Cash  investments  of $50 or more may be made
through a shareholder's  checking  account twice monthly,  monthly or quarterly.
Required forms are available from the Shareholder  Servicing Agent or investment
dealers.

     AUTOMATIC EXCHANGE PLAN:  Shareholders  having account balances of at least
$5,000 in any MFS Fund,  may exchange  their shares for the same class of shares
of the other MFS Funds  (and,  in the case of Class C shares,  for shares of MFS
Money Market Fund) under the Automatic  Exchange  Plan.  The Automatic  Exchange
Plan  provides for  automatic  monthly or quarterly  transfers of funds from the
shareholder's  account in an MFS Fund for investment in the same class of shares
of other MFS Funds  selected by the  shareholder.  Under the Automatic  Exchange
Plan,  transfers of at least $50 each may be made to up to four different funds.
A shareholder  should  consider the objectives and policies of a fund and review
its  prospectus  before  electing to transfer  money into such fund  through the
Automatic  Exchange  Plan.  No  transaction  fee is imposed in  connection  with
transfer  transactions under the Automatic Exchange Plan. However,  transfers of
shares of MFS Money Market  Fund,  MFS  Government  Money Market Fund or Class A
shares of MFS Cash Reserve Fund will be subject to any applicable  sales charge.
For federal and (generally) state income tax purposes,  a transfer is treated as
a sale of the shares transferred and, therefore,  could result in a capital gain
or loss to the shareholder making the transfer.  See the Statement of Additional
Information  for further  information  concerning  the Automatic  Exchange Plan.
Investors  should  consult  their tax advisers  for  information  regarding  the
potential capital gain and loss consequences of transactions under the Automatic
Exchange Plan.

Because a dollar cost averaging  program involves  periodic  purchases of shares
regardless of fluctuating  share offering prices, a shareholder  should consider
his  financial  ability to continue his purchases  through  periods of low price
levels.  Maintaining  a  dollar  cost  averaging  program  concurrently  with  a
withdrawal  program  could  be  disadvantageous  because  of the  sales  charges
included  in shares  purchases  in the case of Class A shares and because of the
assessment  of the CDSC for  certain  share  redemptions  in the case of Class A
shares.

                     -------------------------------------
TAX-DEFERRED  RETIREMENT  PLANS -- Except as noted under  "Purchases  -- Class C
Shares,"  shares  of the  Fund may be  purchased  by all  types of  tax-deferred
retirement plans,  including IRAs, SEP-IRA plans, 401(k) plans, 403(b) plans and
other corporate pension and profit-sharing plans.  Investors should consult with
their tax advisers before establishing any of the tax-deferred  retirement plans
described above.

The Fund's  Statement of Additional  Information,  dated June 1, 1994,  contains
more detailed  information about the Trust and the Fund,  including  information
related to (i) investment policies and restrictions,  including the purchase and
sale of  Options,  Futures  Contracts,  Options  on Futures  Contracts,  Forward
Contracts  and  options on  foreign  currencies,  (ii)  Trustees,  officers  and
investment adviser, (iii) portfolio transactions and brokerage commissions, (iv)
the Fund's shares,  including  rights and liabilities of  shareholders,  (v) the
method used to calculate yield and total rate of return  quotations of the Fund,
(vi) the Distribution  Plans and (vii) various services and privileges  provided
by  the  Fund  for  the  benefit  of  its  shareholders,   including  additional
information with respect to the exchange privilege.


<PAGE>
                                                                    APPENDIX A
                         DESCRIPTION OF BOND RATINGS

The ratings of Moody's Investors Service, Inc. ("Moody's") and Standard & Poor's
Ratings Group ("S&P") represent their opinions as to the quality of various debt
instruments.  It should be  emphasized,  however,  that ratings are not absolute
standards of quality.  Consequently,  debt  instruments  with the same maturity,
coupon and rating may have different  yields while debt  instruments of the same
maturity and coupon with different ratings may have the same yield.

                        MOODY'S INVESTORS SERVICE, INC.
AAA: Bonds which 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
edged." Interest payments are protected by a large or by an exceptionally stable
margin and principal is secure. While the various protective elements are likely
to change,  such changes as can be  visualized  are most  unlikely to impair the
fundamentally strong position of such issues.

AA: Bonds which 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 which make
the long term risks appear somewhat larger than in Aaa securities.

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

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

BA:  Bonds  which are rated Ba are judged to have  speculative  elements;  their
future cannot be considered  as well assured.  Often the  protection of interest
and  principal  payments may be very  moderate and thereby not well  safeguarded
during  other  good and bad  times  over the  future.  Uncertainty  of  position
characterizes bonds in this class.

B: Bonds  which are rated B  generally  lack  characteristics  of the  desirable
investment.  Assurance of interest and principal  payments or of  maintenance of
other terms of the contract over any long period of time may be small.

CAA:  Bonds  which are rated Caa are of poor  standing.  Such  issues  may be in
default or there may be present  elements of danger with respect to principal or
interest.

CA: Bonds which are rated Ca represent  obligations  which are  speculative in a
high degree. Such issues are often in default or have other marked shortcomings.

C:  Bonds  which are rated C are the lowest  rated  class of bonds and issues so
rated can be regarded as having  extremely  poor prospects of ever attaining any
real investment standing.

ABSENCE OF RATING:  Where no rating has been assigned or where a rating has been
suspended or  withdrawn,  it may be for reasons  unrelated to the quality of the
issue.

Should no rating be assigned, the reason may be one of the following:
  1. An application for rating was not received or accepted.
  2. The issue or issuer  belongs to a group of securities or companies that are
     not rated as a matter of policy.
  3. There is a lack of essential data pertaining to the issue or issuer.
  4. The issue was privately  placed,  in which case the rating is not published
     in Moody's publications.

Suspension or withdrawal may occur if new and material  circumstances arise, the
effects of which preclude satisfactory analysis; if there is no longer available
reasonable  up-to-date  data to permit a  judgment  to be  formed;  if a bond is
called for redemption; or for other reasons.

                        STANDARD & POOR'S RATINGS GROUP

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

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.

A: Debt  rated A has a strong  capacity  to pay  interest  and  repay  principal
although it is somewhat more  susceptible  to the adverse  effects of changes in
circumstances and economic conditions than debt in higher rated categories.

BBB:  Debt rated BBB is regarded as having an adequate  capacity to pay interest
and  repay  principal.   Whereas  it  normally  exhibits   adequate   protection
parameters,  adverse  economic  conditions  or changing  circumstances  are more
likely to lead to a weakened  capacity to pay interest and repay  principal  for
debt in this category than in higher rated categories.

BB, B, CCC, CC and C: Debt rated BB, B, CCC, CC and C is  regarded,  on balance,
as predominantly  speculative with respect to capacity to pay interest and repay
principal in  accordance  with the terms of the  obligation.  BB  indicates  the
lowest degree of speculation and C the highest degree of speculation. While such
debt will likely have some  quality and  protective  characteristics,  these are
outweighed by large uncertainties or major risk exposures to adverse conditions.

CI: The rating CI is  reserved  for income  bonds on which no  interest is being
paid.

D:  Debt  rated D is in  payment  default.  The D rating  category  is used when
interest payments or principal payments are not made on the date due even if the
applicable grace period has not expired,  unless S&P believes that such payments
will be made during such grace  period.  The D rating also will be used upon the
filing of a bankruptcy petition if debt service payments are jeopardized.

PLUS (+) OR MINUS (-):  The  ratings  from "AA" to "CCC" may be  modified by the
addition  of a plus or minus  sign to show  relative  standing  within the major
rating categories.

NR:  indicates  that  no  public  rating  has  been  requested,  that  there  is
insufficient  information on which to base a rating, or that S&P does not rate a
particular type of obligation as a matter of policy.

<PAGE>

                                                                    APPENDIX B
                         PORTFOLIO COMPOSITION CHART
                    FOR FISCAL YEAR ENDED JANUARY 31, 1994

     SECURITY                                             PERCENT OF NET ASSETS
     --------                                             ---------------------
     U.S. Government Securities+ .............................         0%
     Equity Securities .......................................         8
     Cash and Cash Equivalents ...............................         4
     Debt -- Unrated by S&P ..................................        19
     DEBT -- S&P RATING
           BBB ...............................................         0
           BB ................................................        12
           B .................................................        49
           CCC ...............................................         5
           D .................................................         3
                                                                     ----
                                                                     100%
                                                                     ====
                                                                     
+ Obligations  issued or  guaranteed  by the U.S.  Government  or its  agencies,
  authorities or instrumentalities.

The chart above indicates the composition of the Fund's portfolio for the Fund's
fiscal  year ended  January  31,  1994,  with the debt  securities  rated by S&P
separated into the indicated  categories.  The  percentages  were  calculated by
averaging the monthly dollar weighted  average of the Fund's net assets invested
in each category.  The chart does not necessarily  indicate what the composition
of the Fund's portfolio will be in subsequent fiscal years.  Rather,  the Fund's
investment objective, policies and restrictions indicate the extent to which the
Fund may purchase securities in the various categories.


<PAGE>
THE MFS FAMILY OF FUNDS(R) -- AMERICA'S OLDEST MUTUAL FUND GROUP 

The members of the MFS Family of Funds are grouped below  according to the types
of  securities  in their  portfolios.  For  free  prospectuses  containing  more
complete  information,  including  the  exchange  privilege  and all charges and
expenses,  please contact your financial  adviser or call the MFS Service Center
at  1-800-225-2606  any business day from 8 a.m. to 8 p.m.  Eastern  time.  This
material should be read carefully before investing or sending money.


<TABLE>
<CAPTION>
<S>                                                 <C>
STOCK FUNDS                                          BOND FUNDS
Massachusetts Investors Trust                       MFS(R) Bond Fund
Massachusetts Investors Growth Stock Fund           MFS(R) Government Limited Maturity Fund
MFS(R) Capital Growth Fund                          MFS(R) Government Mortgage Fund
MFS(R) Emerging Growth Fund*                        MFS(R) Government Securities Fund
MFS(R) Gold & Natural Resources Fund                MFS(R) High Income Fund
MFS(R) Growth Opportunities Fund                    MFS(R) Intermediate Income Fund
MFS(R) Managed Sectors Fund                         MFS(R) Limited Maturity Fund
MFS(R) OTC Fund                                     MFS(R) Strategic Income Fund
MFS(R) Research Fund                                (formerly MFS(R) Income & Opportunity Fund)
MFS(R) Value Fund                                   MFS(R) World Governments Fund 
MFS(R) World Equity Fund                            TAX-FREE BOND FUNDS
MFS(R) World Growth Fund                            MFS(R) Municipal Bond Fund
STOCK AND BOND FUNDS                                MFS(R) Municipal High Income Fund*
MFS(R) Total Return Fund                            MFS(R) Municipal Income Fund
MFS(R) Utilities Fund                               MFS(R) Municipal Limited Maturity Fund
MFS(R) World Total Return Fund                      MFS(R) Municipal Series Trust (AL, AR, CA, FL,
                                                    GA, LA, MD, MA, MS, NY, NC, PA, SC, TN, TX,
                                                    VA, WA, WV)
                                                    MONEY MARKET FUNDS
                                                    MFS(R) Cash Reserve Fund
                                                    MFS(R) Government Money Market Fund
                                                    MFS(R) Money Market Fund

</TABLE>


<PAGE>
INVESTMENT ADVISER
Massachusetts Financial
Services Company
500 Boylston Street, Boston,
MA 02116
(617) 954-5000

DISTRIBUTOR
MFS Financial Services, Inc.
500 Boylston Street, Boston,
MA 02116
(617) 954-5000

CUSTODIAN AND DIVIDEND
DISBURSING AGENT
State Street Bank and Trust
Company
225 Franklin Street, Boston,
MA 02110

SHAREHOLDER SERVICING AGENT
MFS Service Center, Inc.
500 Boylston Street, Boston,
MA 02116
Toll-free: (800) 225-2606

MAILING ADDRESS
P.O. Box 2281, Boston, MA
02107-9906

INDEPENDENT ACCOUNTANTS
Deloitte & Touche
125 Summer Street, Boston, MA
02110



      MFS(R) HIGH INCOME FUND

500 Boylston Street, Boston, MA 02116

                               MHI-1-6/94/150M    18/218/318

            MFS(R)
             HIGH
            INCOME
             FUND


          PROSPECTUS
         JUNE 1, 1994




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