MFS SERIES TRUST I
485BPOS, 1997-06-26
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<PAGE>
   
       As filed with the Securities and Exchange Commission on June 26, 1997
    
                                                    1933 Act File No.  33-7638
                                                    1940 Act File No. 811-4777
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                               ------------------

                                   FORM N-1A
                             REGISTRATION STATEMENT
                                     UNDER
                            THE SECURITIES ACT OF 1933
   
                         POST-EFFECTIVE AMENDMENT NO. 28
    
                                     AND
                             REGISTRATION STATEMENT
                                     UNDER
                       THE INVESTMENT COMPANY ACT OF 1940
   
                                AMENDMENT NO. 30
    
                               MFS SERIES TRUST I
                 (Exact Name of Registrant as Specified in Charter)

                 500 Boylston, Street, Boston, Massachusetts 02116
                      (Address of Principal Executive Offices)

          Registrant's Telephone Number, Including Area Code: 617-954-5000
             Stephen E. Cavan, Massachusetts Financial Services Company,
                    500 Boylston Street, Boston, Massachusetts 02116
                           (Name and Address of Agent for Service)

                        APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:
  It is proposed that this filing will become effective (check appropriate box)

|_| immediately upon filing pursuant to paragraph (b)
   
|X| on July 1, 1997 pursuant to paragraph (b)
    
|_| 60 days after filing pursuant to paragraph (a)(i)
|_| on [date] pursuant to paragraph (a)(i)
|_| 75 days after filing pursuant to paragraph (a)(ii)
|_| on [date] pursuant to paragraph (a)(ii) of rule 485.

If appropriate, check the following box:
|_| this post-effective amendment designates a new effective date for a
    previously filed post-effective amendment
   
Pursuant to Rule 24f-2,  the Registrant  has registered an indefinite  number of
its shares of Beneficial Interest (without par value),  under the Securities Act
of 1933.  The Registrant  filed a Rule 24f-2 Notice,  with respect to the fiscal
year ended August 31, 1996 on October 28, 1996 and will file a Rule 24f-2 Notice
on behalf of all series with respect to the fiscal year ended August 31, 1997 on
or before October 31, 1997.
    
===============================================================================
<PAGE>
                        MFS(R) CONVERTIBLE SECURITIES FUND
                              MFS(R) BLUE CHIP FUND
                            MFS(R) NEW DISCOVERY FUND
                        MFS(R) SCIENCE AND TECHNOLOGY FUND
                        MFS(R) RESEARCH INTERNATIONAL FUND
                           SERIES OF MFS SERIES TRUST I
                                   (the "Funds")

                      Supplement to the January 1, 1997 Prospectus


The  following  information  should  be  read in  conjunction  with  the  Funds'
Prospectus  and  Statement of Additional  Information  dated January 1, 1997 and
contains  financial  information  and other  changes  with respect to the MFS(R)
Convertible  Securities Fund,  MFS(R) Blue Chip Fund, MFS(R) New Discovery Fund,
MFS(R) Science and Technology Fund and MFS(R) Research International Fund.

Annual Operating Expenses (as a percentage of average net assets):

                                     CLASS A SHARES

                                                         SCIENCE
                         CONVERTIBLE  BLUE     NEW         AND       RESEARCH
                          SECURITIES  CHIP  DISCOVERY  TECHNOLOGY INTERNATIONAL
                             FUND     FUND    FUND        FUND         FUND

Management Fees (after
  fee reduction)(1)........ 0.00%    0.00%    0.00%       0.00%        0.00%
Rule 12b-1 Fees (after
  fee reduction)(2)........ 0.00%    0.00%    0.00%       0.00%        0.00%
Other Expenses (after 
  fee reduction)(4) (5).... 1.50%    1.50%    1.50%       1.50%        1.75%
Total Operating Expenses
  (after fee reduction)(4). 1.50%    1.50%    1.50%       1.50%        1.75%


                                    CLASS B SHARES
                                                       SCIENCE
                         CONVERTIBLE  BLUE    NEW         AND       RESEARCH
                          SECURITIES  CHIP  DISCOVERY  TECHNOLOGY INTERNATIONAL
                             FUND     FUND    FUND       FUND         FUND

Management Fees (after
  fee reduction)(1)........ 0.00%    0.00%    0.00%       0.00%        0.00%
Rule 12b-1 Fees(3)..........1.00%    1.00%    1.00%       1.00%        1.00%
Other Expenses (after
  fee reduction)(4)(5)..... 1.50%    1.50%    1.50%       1.50%        1.75%
Total Operating Expenses
  (after fee reduction)(4). 2.50%    2.50%    2.50%       2.50%        2.75%
<PAGE>
                                    CLASS C SHARES

                                                        SCIENCE
                         CONVERTIBLE  BLUE    NEW         AND       RESEARCH
                          SECURITIES  CHIP  DISCOVERY  TECHNOLOGY INTERNATIONAL
                             FUND     FUND    FUND       FUND         FUND

Management Fees (after
  fee reduction)(1)........ 0.00%    0.00%    0.00%       0.00%        0.00%
Rule 12b-1 Fees(3)......... 1.00%    1.00%    1.00%       1.00%        1.00%
Other Expenses (after
  fee reduction)(4)(5)..... 1.50%    1.50%    1.50%       1.50%        1.75%
Total Operating Expenses
  (after fee reduction)(4). 2.50%    2.50%    2.50%       2.50%        2.75%
- ---------------------------
(1)  The Adviser is currently waiving its right to receive  management fees from
     each Fund. Absent this waiver, "Management Fees" would be as follows:


    CONVERTIBLE    BLUE        NEW        SCIENCE AND         RESEARCH
     SECURITIES    CHIP     DISCOVERY      TECHNOLOGY       INTERNATIONAL
       FUND        FUND       FUND            FUND              FUND

      0.65%        0.65%      0.75%          0.75%              1.00%

(2)  Each Fund has adopted a distribution plan for its shares in accordance with
     Rule 12b-1 under the Investment  Company Act of 1940, as amended (the "1940
     Act")  (the  "Distribution   Plan"),   which  provides  that  it  will  pay
     distribution/service  fees  aggregating up to (but not  necessarily all of)
     0.50% per annum of the  average  daily net assets  attributable  to Class A
     shares.  Distribution  and service fees under the  Distribution  Plan, with
     respect to Class A shares,  are currently being waived on a voluntary basis
     and,  while they may be imposed at the  discretion of MFD at any time,  MFD
     currently  intends to waive  these fees  during the Funds'  current  fiscal
     year.  Distribution expenses paid under the Plan, together with the initial
     sales charge, may cause long-term shareholders to pay more than the maximum
     sales  charge that would have been  permissible  if imposed  entirely as an
     initial sales charge. See "Distribution Plan" below.
(3)  Each   Fund's    Distribution    Plan    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 Class B and
     Class  C  shares,  respectively.   Distribution  expenses  paid  under  the
     Distribution Plan with respect to Class B or Class C shares,  together with
     any CDSC payable upon  redemption of Class B and Class C shares,  may cause
     long-term shareholders to pay more than the maximum sales charge that would
     have been permissible if imposed entirely as an initial sales charge.
     See "Distribution Plan" below.
(4)  "Other  Expenses" are based on estimates of payments to be made during each
     Fund's current fiscal year. The Adviser is bearing certain expenses of each
     Fund,  subject to  reimbursement by the Funds such that "Other Expenses" do
     not exceed with respect to each Fund, other than the Research International
     Fund, 1.50% per annum, and with respect to the Research International Fund,
     1.75% per annum,  of each such Fund's  average  daily net assets during the
     current  fiscal year and each fiscal year through  August 31,  2006.  These
     arrangements  may be  changed  or  terminated  by the  Adviser at any time.
     Otherwise, "Other Expenses," expressed as a percentage of average daily net
     assets, would be as follows:

                   CONVERTIBLE   BLUE      NEW       SCIENCE AND    RESEARCH
                    SECURITIES   CHIP    DISCOVERY   TECHNOLOGY   INTERNATIONAL
                      FUND       FUND      FUND         FUND          FUND

     Class A........ 11.50%     11.63%    4.19%         3.72%         3.79%
     Class B........ 11.50%     11.63%    4.19%         3.72%         3.79%
     Class C........ 11.50%     11.63%    4.19%         3.72%         3.79%
<PAGE>
Absent any fee waivers and reductions,  "Total Operating Expenses" for each Fund
would be as follows:

                   CONVERTIBLE   BLUE      NEW       SCIENCE AND    RESEARCH
                    SECURITIES   CHIP    DISCOVERY   TECHNOLOGY   INTERNATIONAL
                      FUND       FUND      FUND         FUND          FUND

     Class A........ 12.65%     12.78%    5.44%         4.97%         5.29%
     Class B........ 13.15%     13.28%    5.94%         5.47%         5.79%
     Class C........ 13.15%     13.28%    5.94%         5.47%         5.79%

(5)  Each Fund has an  expense  offset  arrangement  which  reduces  the  Fund's
     custodian fee based upon the amount of cash maintained by the Fund with its
     custodian  and  dividend  disbursing  agent,  and may enter into other such
     arrangements and directed brokerage arrangements (which would also have the
     effect of reducing the Fund's  expenses).  Any such fee  reductions are not
     reflected under "Other Expenses."

                                  Example of Expenses

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

                                  CLASS A SHARES

                 CONVERTIBLE    BLUE       NEW       SCIENCE AND    RESEARCH
                 SECURITIES     CHIP    DISCOVERY    TECHNOLOGY   INTERNATIONAL
       PERIOD       FUND        FUND       FUND          FUND         FUND

1 year........     $ 62         $ 62      $ 62          $ 62          $ 62
3 years.......       93           93        93            93            93

                                  CLASS B SHARES
                                (ASSUMES REDEMPTION)

                 CONVERTIBLE    BLUE       NEW       SCIENCE AND    RESEARCH
                 SECURITIES     CHIP    DISCOVERY    TECHNOLOGY   INTERNATIONAL
       PERIOD       FUND        FUND      FUND          FUND          FUND

1 year........     $ 65         $ 65      $ 65          $ 65          $ 65
3 years.......      108          108       108           108           108

                                  CLASS B SHARES
                              (ASSUMES NO REDEMPTION)

                 CONVERTIBLE    BLUE       NEW       SCIENCE AND    RESEARCH
                 SECURITIES     CHIP    DISCOVERY    TECHNOLOGY   INTERNATIONAL
       PERIOD       FUND        FUND      FUND          FUND          FUND

1 year........     $ 25         $ 25      $ 25          $ 25          $ 25
3 years.......       78           78        78            78            78

                                  CLASS C SHARES
                               (ASSUMES REDEMPTION)

                 CONVERTIBLE    BLUE       NEW       SCIENCE AND    RESEARCH
                 SECURITIES     CHIP    DISCOVERY    TECHNOLOGY   INTERNATIONAL
       PERIOD       FUND        FUND      FUND          FUND          FUND

1 year........     $ 35         $ 35      $ 35          $ 35          $ 35
3 years.......       78           78        78            78            78


<PAGE>
                                  CLASS C SHARES
                             (ASSUMES NO REDEMPTION)

                 CONVERTIBLE    BLUE       NEW       SCIENCE AND    RESEARCH
                 SECURITIES     CHIP    DISCOVERY    TECHNOLOGY   INTERNATIONAL
       PERIOD       FUND        FUND      FUND          FUND          FUND

1 year........     $ 25         $ 25      $ 25          $ 25          $ 25
3 years.......       78           78        78            78            78

The purpose of the expense table above is to assist  investors in  inderstanding
the  various  costs  and  expenses  that a  shareholder  of each  Fund will bear
directly or indirectly.

The "Example" set forth above should not be considered a representation  of past
or future expenses of a Fund;  actual expenses may be greater or less than those
shown.

CONDENSED FINANCIAL INFORMATION

The  following  information  should be read in  conjunction  with the  financial
statements (which have not been audited) included in the July 1, 1997 Supplement
to the Statement of Additional Information.

                         Financial Highlights (Unaudited)
                        MFS(R) Convertible Securities Fund
                              MFS(R) Blue Chip Fund
                            MFS(R) New Discovery Fund
                        MFS(R) Science and Technology Fund
                         MFS(R) Research International Fund
                           Period Ended February 28, 1997*

Per share data (for a share outstanding throughout the period):

                                                                  PERIOD ENDED
CONVERTIBLE SECURITIES FUND                                   FEBRUARY 28, 1997*
                                                                    CLASS A
                                                                  (UNAUDITED)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                $10.00
Income from investment operations# -
Net investment income###                                             $  --
Net realized and unrealized gain on investments                        0.15
Total from investment operations                                     $ 0.15
Net asset value - end of period                                      $10.15
Total return##                                                        1.50%***
Ratios (to average net assets)/Supplemental data###:
     Expenses                                                         1.50%**
     Net investment income                                            2.20%**
Portfolio turnover                                                      23%
Average commission rate                                              $0.0481
Net assets at end of period (000 omitted)                               $511
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** Annualized.
***Not annualized.
#  Per share data for periods is based on average shares outstanding.
## Total  returns for Class A shares do not include  the  applicable  sales
   charge.  If the charge had been  included,  the results  would have been
   lower.
<PAGE>
###The investment  adviser  voluntarily  agreed to maintain the expenses of
   the Fund at not more than 1.50% of the Fund's  average daily net assets.
   The investment  adviser did not impose its management fee for the period
   indicated   and  paid  some  of  the  other   expenses.   Absent   these
   arrangements,  the net investment  income per share and the ratios would
   have been:

     Net investment income                                           $  --
     Ratios (to average net assets):
       Expenses                                                       12.63%**
       Net investment loss                                            (8.93)%**


                                                                 PERIOD ENDED
BLUE CHIP FUND                                                FEBRUARY 28, 1997*
                                                                   CLASS A
                                                                  (UNAUDITED)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                $10.00
Income from investment operations# -
Net investment income###                                             $ 0.01
Net realized and unrealized gain on investments                        0.42
Total from investment operations                                     $ 0.43
Net asset value - end of period                                      $10.43
Total return##                                                        4.30%***
Ratios (to average net assets)/Supplemental data###:
     Expenses                                                         1.50%**
     Net investment income                                            0.95%**
Portfolio turnover                                                       6%
Average commission rate                                              $0.0366
Net assets at end of period (000 omitted)                              $457
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** Annualized.
***Not annualized.
#  Per share data for periods is based on average shares outstanding.
## Total  returns for Class A shares do not include  the  applicable  sales
   charge.  If the charge had been  included,  the results  would have been
   lower.
###The investment  adviser  voluntarily  agreed to maintain the expenses of
   the Fund at not more than 1.50% of the Fund's  average daily net assets.
   The investment  adviser did not impose its management fee for the period
   indicated   and  paid  some  of  the  other   expenses.   Absent   these
   arrangements,  the net investment  income per share and the ratios would
   have been:

     Net investment income                                           $(0.16)
     Ratios (to average net assets):
       Expenses                                                       12.76%**
       Net investment loss                                          (10.31)%**
<PAGE>
                                                                 PERIOD ENDED
NEW DISCOVERY FUND                                            FEBRUARY 28, 1997*
                                                                   CLASS A
                                                                 (UNAUDITED)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                $10.00
Income from investment operations# -
Net investment income###                                             $ 0.19
Net realized and unrealized loss on investments                       (0.10)
Total from investment operations                                     $ 0.09
Net asset value - end of period                                      $10.09
Total return##                                                         0.90%***
Ratios (to average net assets)/Supplemental data###:
     Expenses                                                          1.50%**
     Net investment income                                            13.90%**
Portfolio turnover                                                      327%
Average commission rate                                              $0.0268
Net assets at end of period (000 omitted)                              $377
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** Annualized.
***Not annualized.
#  Per share data for periods is based on average shares outstanding.
## Total  returns for Class A shares do not include  the  applicable  sales
   charge.  If the charge had been  included,  the results  would have been
   lower.
###The investment  adviser  voluntarily  agreed to maintain the expenses of
   the Fund at not more than 1.50% of the Fund's  average daily net assets.
   The investment  adviser did not impose its management fee for the period
   indicated   and  paid  some  of  the  other   expenses.   Absent   these
   arrangements,  the net investment  income per share and the ratios would
   have been:

     Net investment income                                           $ 0.14
     Ratios (to average net assets):
       Expenses                                                        5.42%**
       Net investment income                                           9.98%**
<PAGE>
                                                                 PERIOD ENDED
SCIENCE AND TECHNOLOGY FUND                                   FEBRUARY 28, 1997*
                                                                    CLASS A
                                                                  (UNAUDITED)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                $10.00
Income from investment operations# -
Net investment income###                                             $ 0.38
Net realized and unrealized loss on investments                       (0.29)
Total from investment operations                                     $ 0.09
Net asset value - end of period                                      $10.09
Total return##                                                        0.80%***
Ratios (to average net assets)/Supplemental data###:
     Expenses                                                         1.50%**
     Net investment income                                           30.63%**
Portfolio turnover                                                     716%
Average commission rate                                              $0.0268
Net assets at end of period (000 omitted)                             $580
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** Annualized.
***Not annualized.
#  Per share data for periods is based on average shares outstanding.
## Total  returns for Class A shares do not include  the  applicable  sales
   charge.  If the charge had been  included,  the results  would have been
   lower.
###The investment  adviser  voluntarily  agreed to maintain the expenses of
   the Fund at not more than 1.50% of the Fund's  average daily net assets.
   The investment  adviser did not impose its management fee for the period
   indicated   and  paid  some  of  the  other   expenses.   Absent   these
   arrangements,  the net investment  income per share and the ratios would
   have been:

       Net investment loss                                           $0.34 
       Ratios (to average net assets):
         Expenses                                                    4.95%**
         Net investment income                                      27.18%**
<PAGE>
                                                                 PERIOD ENDED
RESEARCH INTERNATIONAL FUND                                   FEBRUARY 28, 1997*
                                                                    CLASS A
                                                                  (UNAUDITED)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                $10.00
Income from investment operations# -
Net investment income###                                             $  --
Net realized and unrealized loss on investments                       (0.15)
Total from investment operations                                     $(0.15)
Net asset value - end of period                                      $ 9.85
Total return##                                                       (1.50)%***
Ratios (to average net assets)/Supplemental data###:
     Expenses                                                         1.75%**
     Net investment income                                            0.21%**
Portfolio turnover                                                     176%
Average commission rate                                              $0.0193
Net assets at end of period (000 omitted)                            $1,385
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** Annualized.
***Not annualized.
#  Per share data for periods is based on average shares outstanding.
## Total  returns for Class A shares do not include  the  applicable  sales
   charge.  If the charge had been  included,  the results  would have been
   lower.
###The investment  adviser  voluntarily  agreed to maintain the expenses of
   the Fund at not more than 1.75% of the Fund's  average daily net assets.
   The investment  adviser did not impose its management fee for the period
   indicated   and  paid  some  of  the  other   expenses.   Absent   these
   arrangements,  the net investment  income per share and the ratios would
   have been:

      Net investment loss                                            $(0.05) 
      Ratios (to average net assets):
        Expenses                                                      5.27%**
        Net investment loss                                          (3.56)%**


                 The date of this Supplement  is July 1, 1997.
<PAGE>
   
The Prospectus dated January 1, 1997 for MFS Equity Income Fund, MFS Core Growth
Fund,  MFS Strategic  Growth Fund  (formerly MFS  Aggressive  Growth Fund),  MFS
Special Opportunities Fund, MFS Convertible Securities Fund, MFS Blue Chip Fund,
MFS New  Discovery  Fund,  MFS  Science  and  Technology  Fund and MFS  Research
International  Fund (the "Funds") filed by the  Registrant  pursuant to Rule 497
under the Securities  Act of 1933, as amended,  with the Securities and Exchange
Commission via EDGAR on December 30, 1996, is  incorporated by reference in this
Post-Effective Amendment No. 28.
    
<PAGE>
                           MFS(R) CONVERTIBLE SECURITIES FUND
                                MFS(R) BLUE CHIP FUND
                              MFS(R) NEW DISCOVERY FUND
                          MFS(R) SCIENCE AND TECHNOLOGY FUND
                           MFS(R) RESEARCH INTERNATIONAL FUND
                            A SERIES OF MFS SERIES TRUST I
                                    (the "Funds")

        Supplement to the January 1, 1997 Statement of Additional Information

MANAGEMENT OF THE TRUST

As of May 31, 1997,  entities  beneficially  owning 5% or more of Class A shares
and  Class I shares of the  Registrant's  outstanding  shares of each  series as
follows:

                                                                           % OF 
                                                                          SHARES
         SERIES                        OWNER AND ADDRESS                  OWNED

MFS Convertible Securities Fund    MFS Fund Distributors, Inc.            99.34%
                                   c/o Massachusetts Financial Services Co.
Class A Shares                     Attn:  Thomas B. Hastings
                                   500 Boylston Street - 20th Floor
                                   Boston, MA   02116-3740

Class I Shares                     MFS Defined Contribution Plan          99.73%
                                   c/o Mark Leary
                                   Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
MFS Blue Chip Fund                 MFS Fund Distributors, Inc.            88.21%
                                   c/o Massachusetts Financial Services Co.
Class A Shares                     Attn:  Thomas B. Hastings
                                   500 Boylston Street - 20th Floor
                                   Boston, MA   02116-3740

Class I Shares                     MFS Defined Contribution Plan          99.94%
                                   c/o Mark Leary
                                   Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
MFS New Discovery Fund             The First National Bank of Boston,     53.68%
                                   Trustee for IRA R/O Ned L. Rigsbee
Class A Shares                     10 Nash Street
                                   Westboro, MA  01581-3607

                                   Brian E. Stack & Margaret R. Stack,   26.26% 
                                   JTWROS                       
                                   c/o Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740

                                   Mary Ann Russell and Michael R.         5.38%
                                   Russell, JTWROS                  
                                   c/o Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740

Class I Shares                     MFS Defined Contribution Plan          99.99%
                                   c/o Mark Leary
                                   Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA   02116-3740
- --------------------------------------------------------------------------------
<PAGE>
                                                                          % OF
                                                                          SHARES
         SERIES                       OWNER AND ADDRESS                   OWNED

MFS Science and Technology Fund    The First National Bank of Boston,     32.37%
                                   Trustee for                   
Class A Shares                     IRA R/O Ned L. Rigsbee
                                   10 Nash Street
                                   Westboro, MA  01581-3607

                                   John David Davenport, Trustee          23.15%
                                   The John David Davenport 1994 Revocable
                                   Trust, c/o Arnold D. Scott -
                                   Massachusetts Financial Services
                                   500 Boylston Street - 24th Floor
                                   Boston, MA  02116-3740

                                   Robert J. Manning and Donna Manning,    8.84%
                                   JTWROS c/o Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740

                                   Maura A. Shaughnessy                    6.43%
                                   c/o Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740

                                   Joan S. Batchelder                     15.94%
                                   c/o Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740

Class I Shares                     MFS Defined Contribution Plan          99.99%
                                   c/o Mark Leary
                                   Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
MFS Research International Fund    MFS Fund Distributors, Inc.            64.36%
                                   c/o Massachusetts Financial Services Co.
Class A Shares                     Attn:  Thomas B. Hastings
                                   500 Boylston Street - 20th Floor
                                   Boston, MA   02116-3740

                                   Barry R. Zlotin and Patricia Zlotin,   10.91%
                                   JTWROS
                                   c/o Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740

                                   John David Davenport, Trustee          13.01%
                                   The John David Davenport 1994 Revocable Trust
                                   c/o Arnold D. Scott
                                   Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740

Class I Shares                     MFS Defined Contribution Plan          99.98%
                                   c/o Mark Leary
                                   Massachusetts Financial Services
                                   500 Boylston Street
                                   Boston, MA  02116-3740
- --------------------------------------------------------------------------------
<PAGE>

DETERMINATION OF NET ASSET VALUE; PERFORMANCE INFORMATION

Performance  quotations  for Class A shares and Class I shares for the following
Funds for the period ended February 28, 1997 are as follows:

<TABLE>
<S>                                 <C>     <C>     <C>                <C>           <C>
                                                                       Actual
                                                                       30-Day        30-Day
                                                                        Yield        Yield
                                    Average Annual  Total Returns(1) (Including     (Without
                                    1 Year  5 Years Life of Fund(2)  Any Waivers)  Any Waivers))

MFS Convertible Securities Fund
Class A Shares with sales charge      --     --        -3.33%           -0.17%        -3.05%
Class A Shares without sales charge   --     --         1.50%             N/A            N/A
Class I Shares                        --     --         1.40%           -0.18%        -2.70%

MFS Blue Chip Fund
Class A Shares with sales charge      --     --        -0.67%             --             --
Class A Shares without sales charge   --     --         4.30%             N/A            N/A
Class I Shares                        --     --         4.30%             --             --

MFS New Discovery Fund
Class A Shares with sales charge      --     --        -3.91%             --             --
Class A Shares without sales charge   --     --         0.90%             N/A            N/A
Class I Shares                        --     --         0.90%             --             --

MFS Science and Technology Fund
Class A Shares with sales charge      --     --        -4.00%             --             --
Class A Shares without sales charge   --     --         0.80%             N/A            N/A
Class I Shares                        --     --         0.70%             --             --

MFS Research International Fund
Class A Shares with sales charge      --     --        -6.19%             --             --
Class A Shares without sales charge   --     --        -1.50%             N/A            N/A
Class I Shares                        --     --        -1.50%             --             --
</TABLE>

(1) Total rate of return  figures  would have been lower if certain  fee waivers
    were not in place.
(2) From commencement of offering of Class A shares and Class I shares on
    January 2, 1997.

FINANCIAL STATEMENTS

The unaudited  Semiannual Report,  consisting of the Portfolio of Investments at
February 28, 1997, the Statement of Assets and Liabilities at February 28, 1997,
the Statement of Operations for the period from the  commencement  of investment
operations on January 2, 1997 to February 28, 1997,  Statement of Changes in Net
Assets for the period from  commencement of investment  operations on January 2,
1997 to  February  28,  1997,  and the  Notes to the  financial  statements  are
incorporated  herein by reference to the Semiannual Report to shareholders filed
with the SEC on May 2, 1997.

                      The date of this Supplement is July 1, 1997.

<PAGE>
                               MFS(R) EQUITY INCOME FUND
                                MFS(R) CORE GROWTH FUND
                          MFS(R) SPECIAL OPPORTUNITIES FUND
                          MFS(R) CONVERTIBLE SECURITIES FUND
                                  MFS(R) BLUE CHIP FUND
                                MFS(R) NEW DISCOVERY FUND
                          MFS(R) SCIENCE AND TECHNOLOGY FUND
                          MFS(R) RESEARCH INTERNATIONAL FUND

                   Supplement to the January 1, 1997 Prospectus
                       and Statement of Additional Information


         The following information should be read in conjunction with the Funds'
Prospectus  and Statement of Additional  Information  ("SAI"),  dated January 1,
1997, as supplemented, and contains a description of Class I shares.

         Class I shares are available for purchase only by certain  investors as
described under the caption "Eligible Purchasers" below.

EXPENSE SUMMARY
<TABLE>
<S>                                       <C>          <C>        <C>              <C>
                                                                  Class I
                                          EQUITY        CORE       SPECIAL         CONVERTIBLE
                                          INCOME       GROWTH    OPPORTUNITIES     SECURITIES
                                           FUND         FUND         FUND              FUND
Shareholder Transaction Expenses:
Maximum Initial Sales Charge Imposed
   on Purchases of Fund Shares (as a
   percentage of offering price).........  None         None        None               None
Maximum Contingent Deferred Sales
   Charge (as a percentage of original
   purchase price or redemption proceeds,
   as applicable)........................  None         None        None               None

</TABLE>
<TABLE>
<S>                                        <C>           <C>        <C>              <C>
                                                                    SCIENCE
                                           BLUE          NEW          AND            RESEARCH
                                           CHIP        DISCOVERY   TECHNOLOGY     INTERNATIONAL
                                           FUND          FUND         FUND             FUND
Shareholder Transaction Expenses:
Maximum Initial Sales Charge Imposed
   on Purchases of Fund Shares (as a
   percentage of offering price).........  None         None        None               None
Maximum Contingent Deferred Sales
   Charge (as a percentage of original
   purchase price or redemption proceeds,
   as applicable)........................  None         None        None               None
</TABLE>
<TABLE>
                                          <S>           <C>         <C>            <C>
                                          EQUITY        CORE        SPECIAL        CONVERTIBLE
                                          INCOME       GROWTH     OPPORTUNITIES     SECURITIES
                                           FUND         FUND         FUND              FUND

Annual Operating Expenses (as a percentage of average net assets):
Management Fees (after fee
   reduction)(1).........................  0.00%        0.00%       0.00%              0.00%
Rule 12b-1 Fees..........................  None         None        None               None
Other Expenses (after fee
   reduction)(2) (3).....................  1.50%        1.50%       1.50%              1.50%
Total Operating Expenses (after
   fee reduction)(3).....................  1.50%        1.50%       1.50%              1.50%

</TABLE>
<PAGE>
<TABLE>
<S>                                       <C>            <C>        <C>              <C>
                                                                    SCIENCE
                                          BLUE           NEW          AND            RESEARCH
                                          CHIP         DISCOVERY   TECHNOLOGY      INTERNATIONAL
                                          FUND           FUND         FUND             FUND

Annual Operating Expenses (as a percentage of average net assets):
Management Fees (after fee
   reduction)(1)........................   0.00%        0.00%       0.00%              0.00%
Rule 12b-1 Fees.........................   None         None        None               None
Other Expenses (after fee
   reduction)(2) (3)....................   1.50%        1.50%       1.50%              1.75%
Total Operating Expenses (after
   fee reduction)(3)....................   1.50%        1.50%       1.50%              1.75%
</TABLE>
 ............................
(1)  The Adviser is currently waiving its right to receive  management fees from
     each Fund. Absent this waiver, "Management Fees" would be as follows:

        EQUITY         CORE             SPECIAL              CONVERTIBLE
        INCOME        GROWTH         OPPORTUNITIES           SECURITIES
         FUND          FUND               FUND                  FUND

         0.75%         0.75%              0.75%                 0.65%

                                        SCIENCE
         BLUE           NEW               AND                   RESEARCH
         CHIP        DISCOVERY        TECHNOLOGY              INTERNATIONAL
         FUND          FUND               FUND                    FUND

         0.65%         0.75%              0.75%                   1.00%

(2)  Each Fund has an  expense  offset  arrangement  which  reduces  the  Fund's
     custodian fee based upon the amount of cash maintained by the Fund with its
     custodian  and  dividend  disbursing  agent,  and may enter into other such
     arrangements and directed brokerage arrangements (which would also have the
     effect of reducing the Fund's  expenses).  Any such fee  reductions are not
     reflected under "Other Expenses."
(3)  "Other  Expenses"  for the Equity  Income Fund,  the Core Growth Fund,  the
     Special Opportunities Fund, the Convertible  Securities Fund, the Blue Chip
     Fund,  the New  Discovery  Fund,  the Science and  Technology  Fund and the
     Research  International  Fund are based on estimates of payments to be made
     during each such Fund's current fiscal year. The Adviser has agreed to bear
     each  Fund's  expenses,  subject to  reimbursement  by the Fund,  such that
     "Other  Expenses" do not exceed with  respect to each Fund,  other than the
     Research  International  Fund,  1.50%  per annum  and with  respect  to the
     Research  International Fund, 1.75% per annum, of each Fund's average daily
     net assets  during the  current  fiscal  year.  These  arrangements  may be
     changed  or  terminated  by the  Adviser  at any  time.  Otherwise,  "Other
     Expenses"  expressed as a percentage  of average  daily net assets for each
     Fund would be as follows:


        EQUITY         CORE             SPECIAL              CONVERTIBLE
        INCOME        GROWTH         OPPORTUNITIES           SECURITIES
         FUND          FUND              FUND                    FUND

         4.00%         2.78%             0.98%                  11.50%


                                       SCIENCE
         BLUE          NEW                AND                   RESEARCH
         CHIP       DISCOVERY        TECHNOLOGY              INTERNATIONAL
         FUND          FUND              FUND                     FUND

        11.63%        4.19%              3.72%                   3.79%

<PAGE>
Absent any fee waivers and expense  reductions,  "Total Operating  Expenses" for
each Fund would be as follows:

        EQUITY         CORE             SPECIAL               CONVERTIBLE
        INCOME        GROWTH         OPPORTUNITIES            SECURITIES
         FUND          FUND              FUND                    FUND

        4.75%          3.53%             1.73%                  12.15%


                                        SCIENCE
         BLUE           NEW               AND                   RESEARCH
         CHIP        DISCOVERY        TECHNOLOGY              INTERNATIONAL
         FUND          FUND               FUND                    FUND

        12.28%         4.94%             4.47%                    4.79%


                                Example of Expenses

         An investor  would pay the  following  dollar  amounts of expenses on a
$1,000  investment  in Class I shares  of each  Fund,  assuming  (a) a 5% annual
return and (b) redemption at the end of each of the time periods indicated:
<TABLE>
<S>               <C>                   <C>                      <C>                        <C>
                  EQUITY                CORE                     SPECIAL                    CONVERTIBLE
                  INCOME               GROWTH                 OPPORTUNITIES                 SECURITIES
PERIOD             FUND                  FUND                      FUND                         FUND

1 year.........   $15                   $15                       $15                            $15
3 years........    47                    47                        47                             47
</TABLE>
<TABLE>
<S>               <C>                    <C>                   <C>                            <C>
                                                               SCIENCE
                  BLUE                   NEW                      AND                         RESEARCH
                  CHIP                 DISCOVERY              TECHNOLOGY                    INTERNATIONAL
PERIOD            FUND                   FUND                      FUND                           FUND

1 year.........   $15                   $15                       $15                            $15
3 years........     47                    47                        47                             47
</TABLE>

         The  purpose  of the  expense  table  above is to assist  investors  in
understanding  the various costs and expenses  that a  shareholder  of the Funds
will bear directly or  indirectly.  A more complete  description  of each Fund's
management  fee is set forth under the caption  "Management of the Funds" in the
Prospectus.

         The "Example" set forth above should not be considered a representation
of past or future expenses of the Funds;  actual expenses may be greater or less
than those shown.

CONDENSED FINANCIAL INFORMATION

         The  following  information  has not been audited and should be read in
conjunction  with the  financial  statements  included in the Funds'  Semiannual
Report to shareholders which are incorporated by reference into the SAI.
<PAGE>
                          Financial Highlights (Unaudited)

                                    Class I Shares

                                                                  PERIOD ENDED
EQUITY INCOME FUND                                            FEBRUARY 28, 1997*
                                                                  (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $12.21
Income from investment operations# -
Net investment income**                                               $ 0.03
Net realized and unrealized gain
     on investments and foreign currency transactions                   0.66
Total from investment operations                                      $ 0.69
Less distributions declared to shareholders -
     From net investment income                                       $   --
     From net realized gain (loss) on investments                         --
Total distributions declared to shareholders                          $   --
Net asset value - end of period                                       $12.90
Total return                                                           6.35%####
Ratios (to average net assets)/Supplemental data**:
     Expenses##                                                        1.50%###
     Net investment income                                             1.37%###
Portfolio turnover                                                       66%
Average commission rate                                               $0.0334
Net assets at end of period (000 omitted)                             $  598
- --------------------------
*   For the period from the commencement of offering of Class I shares, January
    2, 1997 to February 28, 1997.
#   Per share data is based on average shares outstanding.
##  The Fund's expenses are calculated without reduction for fees paid
    indirectly.  The reduction of expenses by fees paid indirectly, as a
    percentage of net assets, amounted to:
### Annualized.
####Not annualized.

                                                                     (0.04)%###

**  The investment  adviser  voluntarily  agreed to maintain the expenses of
    the Fund at not more than 1.50% of the Fund's  average daily net assets.
    The investment  adviser did not impose its management fee for the period
    indicated   and  paid  some  of  the  other   expenses.   Absent   these
    arrangements,  the net investment  income per share and the ratios would
    have been:

       Net investment loss                                            $(0.04)
       Ratios (to average net assets):
         Expenses##                                                    4.74%###
         Net investment loss                                          (1.87)%###
<PAGE>
                                                                 PERIOD ENDED
CORE GROWTH FUND                                              FEBRUARY 28, 1997*
                                                                  (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $12.99
Income from investment operations# -
Net investment loss**                                                 $   --
Net realized and unrealized gain
     on investments and foreign currency transactions                   0.57
Total from investment operations                                      $ 0.57
Less distributions declared to shareholders -
     From net realized gain (loss) on investments                     $   --
Total distributions declared to shareholders                          $   --
Net asset value - end of period                                       $13.56
Total return                                                          5.78%####
Ratios (to average net assets)/Supplemental data**:
     Expenses##                                                       1.50%###
     Net investment loss                                             (0.18)%###
Portfolio turnover                                                      175%
Average commission rate                                               $0.0356
Net assets at end of period (000 omitted)                             $ 1,017
- --------------------------
*   For the period from the commencement of offering of Class I shares, January
    2, 1997 to February 28, 1997.
#   Per share data is based on average shares outstanding.
##  The Fund's expenses are calculated without reduction for fees paid
    indirectly.  The reduction of expenses by fees paid indirectly, as a
    percentage of net assets, amounted to:
### Annualized.
####Not annualized.

                                                                    (0.04)%###

**  The investment  adviser  voluntarily  agreed to maintain the expenses of
    the Fund at not more than 1.50% of the Fund's  average daily net assets.
    The investment  adviser did not impose its management fee for the period
    indicated   and  paid  some  of  the  other   expenses.   Absent   these
    arrangements,  the net investment  income per share and the ratios would
    have been:

       Net investment loss                                            $(0.05)
       Ratios (to average net assets):
         Expenses##                                                    3.51%###
         Net investment loss                                          (2.19)%###
<PAGE>
                                                                  PERIOD ENDED
SPECIAL OPPORTUNITIES FUND                                    FEBRUARY 28, 1997*
                                                                 (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $11.38
Income from investment operations# -
Net investment income**                                               $ 0.04
Net realized and unrealized gain
     on investments and foreign currency transactions                   0.19
Total from investment operations                                      $ 0.23
Less distributions declared to shareholders -
     From net investment income                                       $  --
     From net realized gain (loss) on investments                        --
Total distributions declared to shareholders                          $  --
Net asset value - end of period                                       $11.61
Total return                                                           2.66%####
Ratios (to average net assets)/Supplemental data**:
     Expenses##                                                        0.88%###
     Net investment income                                             1.34%###
Portfolio turnover                                                       89%
Average commission rate                                               $0.0440
Net assets at end of period (000 omitted)                             $ 1,789
- --------------------------
*   For the period from the commencement of offering of Class I shares, January
    2, 1997 to February 28, 1997.
#   Per share data is based on average shares outstanding.
##  The Fund's expenses are calculated without reduction for fees paid 
    indirectly.  The reduction of expenses by fees paid indirectly, as a 
    percentage of net assets, amounted to:
### Annualized.
####Not annualized.

                                                                    (0.04)%###

**  The investment  adviser  voluntarily  agreed to maintain the expenses of
    the Fund at not more than 1.50% of the Fund's  average daily net assets.
    The investment  adviser did not impose its management fee for the period
    indicated   and  paid  some  of  the  other   expenses.   Absent   these
    arrangements,  the net investment  income per share and the ratios would
    have been:

       Net investment income                                          $0.01
       Ratios (to average net assets):
         Expenses##                                                   1.72%###
         Net investment income                                        0.50%###
<PAGE>
                                                                 PERIOD ENDED
CONVERTIBLE SECURITIES FUND                                   FEBRUARY 28, 1997*
                                                                   (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $10.00
Income from investment operations# -
Net investment income**                                               $ 0.03
Net realized and unrealized gain on investments                         0.11
Total from investment operations                                      $ 0.14
Net asset value - end of period                                       $10.14
Total return                                                            1.40%###
Ratios (to average net assets)/Supplemental data**:
     Expenses                                                           1.50%##
     Net investment income                                              2.18%##
Portfolio turnover                                                        23%
Average commission rate                                               $0.0481
Net assets at end of period (000 omitted)                             $ 43
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** The investment adviser voluntarily agreed to maintain the expenses of the 
   Fund at not more than 1.50% of the Fund's average daily net assets. The
   investment adviser did not impose its management fee for the period indicated
   and paid some of the other expenses. Absent these arrangements, the net
   investment income per share and the ratios would have been:
#  Per share data for periods is based on average shares outstanding.
## Annualized.
###Not annualized.

       Net investment loss                                            $(0.13)
       Ratios (to average net assets):
         Expenses                                                     12.13%##
         Net investment loss                                          (8.45)%##

                                                                  PERIOD ENDED
BLUE CHIP FUND                                                FEBRUARY 28, 1997*
                                                                  (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $10.00
Income from investment operations# -
Net investment income**                                               $ 0.01
Net realized and unrealized gain
     on investments                                                     0.42
Total from investment operations                                      $ 0.43
Net asset value - end of period                                       $10.43
Total return                                                           4.30%###
Ratios (to average net assets)/Supplemental data**:
     Expenses                                                          1.50%##
     Net investment income                                             0.94%##
Portfolio turnover                                                        6%
Average commission rate                                               $0.0366
Net assets at end of period (000 omitted)                             $ 172
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** The investment adviser voluntarily agreed to maintain the expenses of the 
   Fund at not more than 1.50% of the Fund's average daily net assets. The
   investment adviser did not impose its management fee for the period 
   indicated and paid  some of the other expenses. Absent these arrangements, 
   the net investment income per share and the ratios would have been:
<PAGE>
#  Per share data for periods is based on average shares outstanding.
## Annualized.
###Not annualized.

       Net investment loss                                            $(0.16) 
       Ratios (to average net assets):
         Expenses                                                     12.27%##
         Net investment loss                                          (9.83)%##

                                                                  PERIOD ENDED
NEW DISCOVERY FUND                                            FEBRUARY 28, 1997*
                                                                   (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $10.00
Income from investment operations# -
Net investment income**                                               $ 0.20
Net realized and unrealized loss
     on investments                                                    (0.11)
Total from investment operations                                      $ 0.09
Net asset value - end of period                                       $10.09
Total return                                                            0.90%###
Ratios (to average net assets)/Supplemental data**:
     Expenses                                                           1.50%##
     Net investment income                                             12.79%##
Portfolio turnover                                                       327%
Average commission rate                                               $0.0268
Net assets at end of period (000 omitted)                             $ 1,379
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** The investment adviser voluntarily agreed to maintain the expenses of the
   Fund at not more than 1.50% of the Fund's average daily net assets. The
   investment adviser did not impose its management fee for the period indicated
   and paid some of the other expenses. Absent these arrangements, the net
   investment income per share and the ratios would have been:
#  Per share data for periods is based on average shares outstanding.
## Annualized.
###Not annualized.

       Net investment income                                          $0.15 
       Ratios (to average net assets):
         Expenses                                                      4.92%##
         Net investment income                                         9.37%##
<PAGE>
                                                                  PERIOD ENDED
SCIENCE AND TECHNOLOGY FUND                                   FEBRUARY 28, 1997*
                                                                 (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $10.00
Income from investment operations# -
Net investment income**                                               $ 0.46
Net realized and unrealized loss
     on investments                                                    (0.37)
Total from investment operations                                      $ 0.09
Net asset value - end of period                                       $10.09
Total return                                                          0.70%###
Ratios (to average net assets)/Supplemental data**:
     Expenses                                                         1.50%##
     Net investment income                                           29.42%##
Portfolio turnover                                                     716%
Average commission rate                                             $0.0268
Net assets at end of period (000 omitted)                           $ 1,531
- --------------------------
*  For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
** The investment adviser voluntarily agreed to maintain the expenses of the 
   Fund at not more than 1.50% of the Fund's average daily net assets.  The
   investment adviser did not impose its management fee for the period indicated
   and paid  ome of the other expenses. Absent these arrangements, the net
   investment income per share and the ratios would have been:
#  Per share data for periods is based on average shares outstanding.
## Annualized.
###Not annualized.

       Net investment income                                          $0.42 
       Ratios (to average net assets):
         Expenses                                                      4.45%##
         Net investment income                                        26.47%##

                                                                  PERIOD ENDED
RESEARCH INTERNATIONAL FUND                                   FEBRUARY 28, 1997*
                                                                   (Unaudited)
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                                 $10.00
Income from investment operations# -
Net investment income**                                               $  --
Net realized and unrealized loss
     on investments                                                   (0.15)
Total from investment operations                                      $(0.15)
Net asset value - end of period                                       $ 9.85
Total return                                                          (1.50)%###
Ratios (to average net assets)/Supplemental data**:
     Expenses                                                          1.75%##
     Net investment income                                             0.17%##
Portfolio turnover                                                     176%
Average commission rate                                               $ 0.0193
Net assets at end of period (000 omitted)                             $ 577
- --------------------------
*  For the period from the commencement of investment operations, January 2, 
   1997 to February 28, 1997.
** The investment adviser voluntarily agreed to maintain the expenses of the 
   Fund at not more than 1.75% of the Fund's average daily net assets. The  
   investment adviser did not impose its management
<PAGE>
   fee for the period indicated and paid some of the other expenses. Absent 
   these arrangements, the net investment income per share and the ratios would
   have been:
#  Per share data for periods is based on average shares outstanding.
## Annualized.
###Not annualized.

        Net investment loss                                           $(0.05) 
        Ratios (to average net assets):
         Expenses##                                                    4.77%##
         Net investment loss                                          (3.10)%##

ELIGIBLE PURCHASERS

Class I shares are  available  for  purchase  only by the  following  purchasers
("Eligible Purchasers"):

(i)  certain  retirement  plans  established  for the  benefit of  employees  of
     Massachusetts  Financial  Services Company ("MFS"),  the Fund's  investment
     adviser, and employees of MFS' affiliates; and

(ii) any fund distributed by MFS Fund  Distributors,  Inc.  ("MFD"),  the Fund's
     distributor,  if the fund  seeks to achieve  its  investment  objective  by
     investing  primarily in shares of the Fund and other funds  distributed  by
     MFD.

         In no event will the Fund, MFS, MFD or any of their  affiliates pay any
sales commissions or compensation to any third party in connection with the sale
of Class I shares;  the  payment of any such sales  commission  or  compensation
would,  under the Fund's  policies,  disqualify  the  purchaser  as an  eligible
investor of Class I shares.

SHARE CLASSES OFFERED BY THE FUNDS

         While each Fund has four  classes of shares  (Class A, Class B, Class C
and Class I shares),  Class A and Class I shares are the only classes  presently
available  for sale.  Class I shares are available for purchase only by Eligible
Purchasers,  as defined  above,  and are described in this  Supplement.  Class A
shares,  Class  B  shares  and  Class  C  shares  are  described  in the  Funds'
Prospectus.  Class A shares are  available  for  purchase by certain  retirement
plans  established for the benefit of employees of MFS and by such employees and
certain  of their  family  members  who are  residents  of The  Commonwealth  of
Massachusetts,  and  members  of  the  governing  boards  of the  various  funds
sponsored by MFS.

         Class A shares  are  offered at net asset  value plus an initial  sales
charge up to a maximum of 4.75% of the offering price (or a contingent  deferred
sales  charge (a "CDSC") upon  redemption  of 1.00% during the first year in the
case of  purchases  of $1 million or more and certain  purchases  by  retirement
plans),  and are subject to an annual  distribution  fee and service fee up to a
maximum  of 0.50% per  annum.  Class B shares  are  offered  at net asset  value
without  an initial  sales  charge  but are  subject  to a CDSC upon  redemption
(declining from 4.00% during the first year to 0% after six years) and an annual
distribution  fee and  service  fee up to a maximum of 1.00% per annum;  Class B
shares convert to Class A shares approximately eight years after purchase. Class
C shares are offered at net asset value  without an initial sales charge but are
subject to a CDSC upon  redemption  of 1.00% during the first year and an annual
distribution  fee and  service  fee up to a maximum of 1.00% per annum.  Class I
shares are offered at net asset value  without an initial  sales  charge or CDSC
and are not subject to a distribution or service fee. Class C and Class I shares
do not convert to any other class of shares of the Funds.

OTHER INFORMATION

         Eligible  Purchasers may purchase Class I shares only directly  through
MFD.  Eligible  Purchasers  may  exchange  Class I shares  of a Fund for Class I
shares of any other MFS Fund available for purchase by such Eligible  Purchasers
at their net asset  value (if  available  for sale),  and may  exchange  Class I
shares of a Fund for  shares  of the MFS Money  Market  Fund (if  available  for
sale), and may redeem Class I shares of a Fund at net asset value. Distributions
paid by a Fund with  respect to Class I shares  generally  will be greater  than
<PAGE>
those  paid with  respect  to Class A shares,  Class B shares and Class C shares
because  expenses  attributable  to Class A shares,  Class B shares  and Class C
shares generally will be higher.

         Subject to termination  or revision at the sole  discretion of MFS, MFS
has agreed to bear each Fund's  expenses such that each Fund's "Other  Expenses"
which are  defined to include  all Fund  expenses  except for  management  fees,
taxes,  extraordinary  expenses,  brokerage and termination costs, do not exceed
with respect to each Fund, other than the Research International Fund, 1.50% per
annum, and with respect to Research International Fund, 1.75% per annum, of each
of the Funds' average daily net assets (the "Maximum  Percentage")  with respect
to Class I shares.  The obligation of MFS to bear these  expenses  terminates on
the last day of the Fund's fiscal year in which the Fund's "Other  Expenses" are
less than or equal to the Maximum Percentage. The payments made by MFS on behalf
of each Fund under this arrangement are subject to reimbursement by each Fund to
MFS, which will be accomplished by the payment of an expense  reimbursement  fee
by each Fund to MFS computed  and paid  monthly at a  percentage  of its average
daily net assets for each Fund's  current  fiscal year,  with a limitation  that
immediately  after such payment each Fund's "Other Expenses" will not exceed the
Maximum Percentage. This expense reimbursement by each Fund to MFS terminates on
the earlier of the date on which payments made by a Fund equal the prior payment
of such reimbursable expenses by MFS or August 31, 2006.

                   The date of this Supplement is July 1, 1997
<PAGE>
   
The  Statement of  Additional  Information  dated January 1, 1997 for MFS Equity
Income Fund,  MFS Core Growth Fund,  MFS  Strategic  Growth Fund  (formerly  MFS
Aggressive  Growth  Fund),  MFS  Special  Opportunities  Fund,  MFS  Convertible
Securities  Fund,  MFS Blue Chip Fund,  MFS New Discovery  Fund, MFS Science and
Technology Fund and MFS Research  International  Fund (the "Funds") filed by the
Registrant  pursuant to Rule 497 under the  Securities  Act of 1933, as amended,
with the Securities  and Exchange  Commission via EDGAR on December 30, 1996, is
incorporated by reference in this Post-Effective Amendment No. 28.
    
<PAGE>

<PAGE>
[LOGO] MFS(SM)
INVESTMENT MANAGEMENT


                                                               SEMIANNUAL REPORT
                                                               FEBRUARY 28, 1997

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

                            MFS(R) CORE GROWTH FUND
                           MFS(R) EQUITY INCOME FUND
                       MFS(R) SPECIAL OPPORTUNITIES FUND
                             MFS(R) BLUE CHIP FUND
                       MFS(R) CONVERTIBLE SECURITIES FUND
                           MFS(R) NEW DISCOVERY FUND
                       MFS(R) RESEARCH INTERNATIONAL FUND
                       MFS(R) SCIENCE AND TECHNOLOGY FUND
<PAGE>

<TABLE>
<CAPTION>
MFS(R) INCUBATOR FUNDS                                          
MFS(R) CORE GROWTH FUND                                             MFS(R) CONVERTIBLE SECURITIES FUND
MFS(R) EQUITY INCOME FUND                                           MFS(R) NEW DISCOVERY FUND         
MFS(R) SPECIAL OPPORTUNITIES FUND                                   MFS(R) RESEARCH INTERNATIONAL FUND
MFS(R) BLUE CHIP FUND                                               MFS(R) SCIENCE AND TECHNOLOGY FUND
                                                                
<S>                                                                 <C>
TRUSTEES                                                            INVESTMENT ADVISER                                           
A. Keith Brodkin* - Chairman and President                          Massachusetts Financial Services Company                     
                                                                    500 Boylston Street                                          
Richard B. Bailey* - Private Investor;                              Boston, MA 02116-3741                                        
Former Chairman and Director (until 1991),                                                                                       
Massachusetts Financial Services Company; Director, Cambridge       DISTRIBUTOR                                                  
Bancorp; Director, Cambridge Trust Company                          MFS Fund Distributors, Inc.                                  
                                                                    500 Boylston Street                                          
Marshall N. Cohan - Private Investor                                Boston, MA 02116-3741                                        
                                                                                                                                 
Lawrence H. Cohn, M.D. - Chief of Cardiac Surgery,                  TREASURER                                                    
Brigham and Women's Hospital; Professor of Surgery, Harvard         W. Thomas London*                                            
Medical School                                                                                                                   
                                                                    ASSISTANT TREASURER                                          
The Hon. Sir J. David Gibbons, KBE - Chief Executive                James O. Yost*                                               
Officer, Edmund Gibbons Ltd.; Chairman, Bank of                                                                                  
N.T. Butterfield & Son Ltd.                                         SECRETARY                                                    
                                                                    Stephen E. Cavan*                                            
Abby M. O'Neill - Private Investor; Director, Rockefeller                                                                        
Financial Services, Inc. (investment advisers)                      ASSISTANT SECRETARY                                          
                                                                    James R. Bordewick, Jr.*                                     
Walter E. Robb, III - President and Treasurer, Benchmark                                                                         
Advisors, Inc. (corporate financial consultants); President,        World Wide Web                                               
Benchmark Consulting Group, Inc. (office services);                 www.mfs.com                                                  
Trustee, Landmark Funds (mutual funds)                                                                                           
                                                                    INVESTOR INFORMATION                                         
Arnold D. Scott* - Senior Executive Vice President,                 For MFS stock and bond market outlooks, call toll free:      
Director and Secretary, Massachusetts Financial Services            1-800-637-4458 anytime from a touch-tone telephone.          
Company                                                                                                                          
                                                                    For information on MFS mutual funds, call your financial     
Jeffrey L. Shames* - President and Director, Massachusetts          adviser or, for an information kit, call toll free:          
Financial Services Company                                          1-800-637-2929 any business day from 9 a.m. to 5 p.m.        
                                                                    Eastern time (or leave a message anytime).                   
J. Dale Sherratt - President, Insight Resources, Inc.                                                                            
(acquisition planning specialists)                                  INVESTOR SERVICE                                             
                                                                    MFS Service Center, Inc.                                     
Ward Smith - Former Chairman (until 1994), NACCO Industries;        P.O. Box 2281                                                
Director, Sundstrand Corporation                                    Boston, MA 02107-9906                                        
                                                                                                                                 
PORTFOLIO MANAGERS*                                                 For general information, call toll free: 1-800-225-2606      
Irfan Ali                                                           any business day from 8 a.m. to 8 p.m. Eastern time.         
John F. Brennan, Jr.                                                                                                             
Mitchell D. Dynan                                                   For service to speech- or hearing-impaired, call toll free:  
Judith Noelle Lamb                                                  1-800-637-6576 any business day from 9 a.m. to 5 p.m.        
John D. Laupheimer, Jr.                                             Eastern time. (To use this service, your phone must be       
Robert J. Manning                                                   equipped with a Telecommunications Device for the Deaf.)     
Lisa B. Nurme                                                                                                                    
Kevin R. Parke                                                      For share prices, account balances, and exchanges, call toll 
Stephen Pesek                                                       free: 1-800-MFS-TALK (1-800-637-8255) anytime from a         
Brian E. Stack                                                      touch-tone telephone.                                        
                                                                                                                                 
CUSTODIAN                                                                                                                        
State Street Bank and Trust Company                                                                                              

*Affiliated with the Investment Adviser                                                                                          
</TABLE>

<PAGE>

LETTER FROM THE CHAIRMAN

Dear Shareholders:
After more than six years of expansion, the U.S. economy appears to be
experiencing another year of moderate growth in 1997, although a few signs
point to the possibility of a modest rise in inflation during the year. On the
positive side, the pattern of moderate growth and inflation set over the past
few years now seems fairly well entrenched in the economy and, short of a
major international or domestic crisis, appears to have enough momentum to
remain on track for some time. Also, gains in such important sectors as
housing, automobiles, industrial production, and exports indicate a fair
amount of underlying strength in the economy. However, some reason for caution
can be seen in the continuing high levels of consumer debt and rising personal
bankruptcies, as well as in the ongoing tightness in labor markets, which
could add some inflationary pressures to the economy. Given these somewhat
conflicting indicators, we expect real (inflation-adjusted) growth to revolve
around 2% in 1997, which would represent a modest decline from 1996.
    We continue to urge U.S. equity investors to lower their expectations for
1997 and to point out that the impressive gains of the past two years are not
sustainable. Just as the slowdown in corporate earnings growth and increases
in interest rates in 1996 raised some near-term concerns, further interest
rate increases and an acceleration of inflation could negatively affect the
stock market in 1997. However, to the extent that some slowdown in earnings
means that the economy is not overheating, this could be beneficial for the
equity market in the long run. Also, we believe many of the technology-driven
productivity gains that U.S. companies have made in recent years will continue
to enhance corporate America's competitiveness and profitability. Therefore,
while we have some near-term concerns, we remain reasonably positive about the
long-term viability of the equity market.
    In the bond markets, conflicting signals over the strength of the economy
have created near-term volatility, while comments by Federal Reserve Board
Chairman Alan Greenspan late in 1996 and earlier this year created some
uncertainty about the Federal Reserve's next move. However, we expect the Fed
to maintain its anti-inflationary stance should signs of more rapid economic
growth and, particularly, of higher inflation resurface. While inflationary
forces largely remained in check in 1996, the continued strength in the labor
market means that a pickup in inflation is still possible. At the same time,
the U.S. budget deficit continues to decline and, as a percentage of gross
domestic product, is now less than 2%, which we consider a positive
development for the bond markets. Although interest rates may move higher over
the coming months, we believe that, at current levels, fixed-income markets
remain equitably valued.
    We appreciate your support and welcome any questions or comments you may
have.

Respectfully,

/s/ A. Keith Brodkin
A. Keith Brodkin
Chairman and President

March 14, 1997
<PAGE>
PORTFOLIO MANAGERS' OVERVIEWS

MFS CORE GROWTH FUND
For the six months ended February 28, 1997, Class A shares of the Fund
provided a total return of 24.12% and Class I shares returned 24.30%. These
returns, which assume the reinvestment of distributions but exclude the
effects of any sales charges, compare to a 22.50% return for the Standard &
Poor's 500 Composite Index (the S&P 500), a popular, unmanaged index of common
stock performance.
    Four general themes best describe the Fund's current holdings, which are
built from the bottom up based on individual stock selection. First, the Fund
seeks companies with high unit sales growth, which supports above-average
revenue growth. The second theme pertains to companies that we believe could
exhibit accelerated earnings growth driven by new product cycles and/or
acquisitions. Third, the Fund seeks companies that are able to control their
own destiny via internal changes such as cost cutting or consolidation. This
encompasses companies with the potential to make higher-than-average levels of
incremental internal investment. Finally, the Fund seeks companies that, in
our opinion, have the potential to benefit from a fundamental mismatch in the
balance between supply and demand.

/s/ John D. Laupheimer, Jr.                   /s/ Stephen Pesek
    -----------------------------                 ----------------------------
    John D. Laupheimer, Jr.                       Stephen Pesek
    Portfolio Manager                             Portfolio Manager

MFS EQUITY INCOME FUND
For the six months ended February 28, 1997, Class A shares of the Fund
provided a total return of 20.26% and Class I shares returned 20.16%. These
returns, which assume the reinvestment of distributions but exclude the
effects of any sales charges, compare to a 22.50% return for the S&P 500.
    The Fund's top holdings were in the financial services, utilities,
industrial goods and services, and energy sectors. Within financial services,
the Fund has increased its weighting in insurance stocks, an industry in which
companies are aggressively reshaping their business portfolios. The Fund has
reduced its exposure to gas pipelines, after a strong performance in 1996.
Currently, the Fund's utility holdings are concentrated in gas distribution
companies, high-quality, low-cost electric utilities, and well-positioned
local and long-distance telephone companies. The Fund has maintained exposure
to the commercial jet building cycle; however, some profits have been taken in
this sector, a strong contributor to performance in 1996. Energy holdings
remain focused in both international and domestic companies, which are seeing
improved returns despite being in lagging businesses, especially refining,
where we believe a slow recovery is underway.
    The Fund continues to seek holdings in companies that we anticipate will
provide attractive dividend yields and reasonable valuations, characteristics
that we believe could provide protection against price declines in a volatile
market.

/s/ Lisa B. Nurme
    --------------------------------
    Lisa B. Nurme
    Portfolio Manager

MFS SPECIAL OPPORTUNITIES FUND
For the six months ended February 28, 1997, Class A shares of the Fund
provided a total return of 12.59% and Class I shares returned 12.78%. These
returns, which assume the reinvestment of distributions but exclude the
effects of any sales charges, compare to a 22.50% return for the S&P 500.
    The Fund continues to have the majority of its assets in common stocks
because we have found few interesting opportunities in the distressed and
high-yield markets. The Fund's holdings can be separated as follows: one-third
in equities of companies that have emerged from bankruptcy, such as Anacomp;
one-third in leveraged-company equities, such as Maxxam; and one-third in
companies that we feel have significant earnings power and that trade at a
substantial discount to their anticipated long-term growth rates, such as Tyco
International. The Fund has also benefited from being invested in companies
that have been taken over. Two recent examples include Loral and Eljer
Industries. The Fund will continue its value-oriented style of investing and
will patiently wait for the markets to present what we feel are more
interesting opportunities over time.

/s/ John F. Brennan, Jr.                       /s/ Robert J. Manning
    --------------------------------               ----------------------------
    John F. Brennan, Jr.                           Robert J. Manning
    Portfolio Manager                              Portfolio Manager

MFS BLUE CHIP FUND
The Fund commenced operations on January 2, 1997 and, from that date through
February 28, 1997, provided a total return of 4.30%. This return, which
assumes the reinvestment of distributions but excludes the effects of any
sales charges, compares to a 7.08% return for the S&P 500 for the same period.
    The investment strategy of the Fund is predicated on the assumption that
the U.S. economy will grow slowly during 1997 and that interest rates will
remain fairly stable. Given the longevity of the current economic recovery and
the high levels of consumer debt, we believe that the economic risks are on
the downside. During the second half of 1997, investors could become
increasingly concerned about slower growth or a recession during 1998. If this
scenario unfolds, then interest rates could move downward. The Fund is
positioned to anticipate this potential change in perception, with the bulk of
its investments in companies that we believe can sustain double-digit earnings
growth in this type of environment. Earnings ultimately drive stock prices,
and investors will bid up prices of companies that can achieve above-average
earnings growth.
    The Fund's current industry weightings reflect a fairly defensive posture
that is consistent with this economic scenario. While sector allocations have
been made, the Fund's holdings are diverse and spread across many industries.
For example, the Fund is significantly underweighted in the basic materials,
auto, and housing sectors. Conversely, it is overweighted in consumer staples
and health care. Industrial goods are overweighted but skewed toward aerospace
and defense companies that, we believe, should perform relatively well in a
slow-growth economy. Similarly, the retail weighting is greater than the
market's, but two-thirds of this is in supermarkets and drug stores. The
financial services weighting is close to that of the S&P 500, with an emphasis
on high-quality regional banks and insurance companies. The weightings in the
energy and utilities and communications sectors also approximate those of the
market. While we believe these holdings offer modest price appreciation, they
are viewed as the ballast in the portfolio. Emphasis has also been placed on
companies that have significant recurring revenue streams and participate in
dynamic, high-growth markets. Examples are First Data, IKON, and DST Systems.
For the same reasons, the bulk of the Fund's technology investments are in the
software industry.

/s/ Mitchell D. Dynan
    ------------------------------
    Mitchell D. Dynan
    Portfolio Manager

MFS CONVERTIBLE SECURITIES FUND
The Fund commenced operations on January 2, 1997 and from that date through
February 28, 1997, provided a total return of 1.50%. This return, which
assumes the reinvestment of distributions but excludes the effects of any
sales charges, compares to a 2.53% return for the Merrill Lynch All
Convertibles Index, an unmanaged index of 509 convertible securities, and a
2.60% return for the average convertible securities fund for the same period
as tracked by Lipper Analytical Services, an independent firm that monitors
mutual fund performance.
    The Fund has taken an extremely defensive posture to preserve capital due
to what we feel are the stock market's current high valuation and its
increased volatility. Convertible securities comprise 88% of the portfolio
versus the required 65% minimum. Increased demand for the convertible asset
class has led to a more expensive convertible securities market, as
illustrated by the aggressive pricing of new issues. In response, the
portfolio is skewed toward convertibles that are technically cheap (i.e.,
those whose price movements correlate well with the upward price movements in
the underlying common stock) and that have above-average yield.
    The Fund's overall strategy is to invest in companies that are benefiting
from one or more of the following trends: industry consolidation, market
dominance, or cost containment. Performance was favorably impacted by
overweightings in industrial goods and services companies such as Browning
Ferris and U.S. Filter; consumer staples such as Dole Foods; retailers such as
Saks Fifth Avenue and K-Mart; financial services companies such as Conseco,
NationsBank, and Finova; and technology companies such as Baan and Xilinx.
    Performance has been hindered by basic materials companies such as RMI
Titanium and Titanium Metals and, to a lesser extent, by energy companies such
as Enron Oil & Gas and Devon Energy. A value-oriented approach will continue
to be used to evaluate company fundamentals and technical aspects of
convertible securities.

/s/ Judith Noelle Lamb
    ----------------------------
    Judith Noelle Lamb
    Portfolio Manager


MFS NEW DISCOVERY FUND
The Fund commenced operations on January 2, 1997 and, from that date through
February 28, 1997, provided a total return of 0.90%. This return, which
assumes the reinvestment of distributions but excludes the effects of any
sales charges, compares to a -0.48% return for the Russell 2000 Total Return
Index, an index comprised of 2,000 of the smallest U.S.-domiciled company
common stocks that are traded on the New York Stock Exchange, the American
Stock Exchange, and NASDAQ.
    The Fund maintains significant weightings in technology, health services,
financial services, and lodging -- sectors that we believe will experience
sustainable earnings growth well in excess of that of the overall economy. The
Fund's favorable performance versus the Russell 2000 Index reflects the
exceptional strength shown by its financial services and lodging holdings. The
former, such as Franklin Resources and Reliastar Financial, are experiencing
strong asset and earnings growth, as individuals both in the United States and
abroad are paying increased attention to building retirement assets. The
portfolio has also seen strong gains in the shares of several operators of
high-end hotel chains, such as Renaissance Hotels and Wyndham Hotels. These
companies are experiencing rapid earnings growth, reflecting strong industry
supply/demand fundamentals. Due to the sell-off of technology shares early in
1997, these stocks have hindered the Fund's performance. However, we remain
convinced that the technology sector offers the single best secular growth
opportunity in our economy, and our holdings are concentrated in companies
that we believe are well positioned and attractively valued. As a result, we
expect holdings such as Cadence Design Systems to contribute materially to the
Fund's future performance.
    The Fund will continue to seek what we feel are attractively valued,
emerging growth companies that can provide exceptional long-term returns. Of
late, the performance of larger-company shares has significantly outpaced that
of smaller-company stocks. Additionally, growing worries about inflationary
pressures have prompted an ongoing sell-off in many high-quality emerging
growth stocks that we would, heretofore, have considered overpriced. As a result
of these factors, we are encountering a greater number of what we see as
attractive investment opportunities, and we remain optimistic about the Fund's
future prospects.

/s/ Brian E. Stack
    ------------------------------
    Brian E. Stack
    Portfolio Manager

MFS RESEARCH INTERNATIONAL FUND
The Fund commenced operations on January 2, 1997 and, from that date through
February 28, 1997, provided a total return of -1.50%. This return, which
assumes the reinvestment of distributions but excludes the effects of any
sales charges, compares to a -1.87% return for the Morgan Stanley Capital
International EAFE (Europe, Australia, Far East) Index, an unmanaged index of
international stocks.
    The top five sectors in the Fund are technology (15.8% of assets),
financial services (15.7%), utilities and communications (10.9%), retailing
(10.2%), and industrial goods and services (10.0%).
    The three top holdings in the Fund, which uses a bottom-up, fundamental
approach to investing, are in the technology sector with Sony, Canon, and TDK
Corporation. We believe Sony's new digital product launches and strong product
pipeline offer the company significant opportunities, while management's
compensation is directly tied to the company's performance. Also, through
major distributors in Europe and Japan, Sony Pictures' new management team
will soon be able to capitalize on the 3,400 movie titles it has in its motion
picture bank. As a result, we anticipate that operating profits could grow at
an average of over 20% over the next couple of years.
    Canon's underlying operating growth should be at 12% in the coming year.
We feel that the company's valuation is currently cheap for a quality growth
company. TDK has strong proprietary technology in a number of high-growth
component markets. We expect these products to continue providing strong
earnings growth over the next couple of years.
    Our top holding in the utilities and communications sector is PowerGen, a
British electric utility. There is currently strong industry demand and
availability at PowerGen's plants. As a result, production should be higher
than expected, and market share should be around 20% to 21%. Several of our
top holdings are also in the retail sector. Companies such as ASDA, Kwik-Fit,
and Storehouse all offer what we believe is good earnings potential at
reasonable valuations. Within the financial services sector, several banks and
insurance companies in Hong Kong, Great Britain, France, and Japan have
demonstrated good earnings growth, which, coupled with substantial cost
savings, is yielding excellent results.

/s/ Kevin R. Parke
    ------------------------------
    Kevin R. Parke
    Director of Research

The committee of MFS equity research analysts is responsible for the day-to-
day management of the Fund under the general supervision of Mr. Parke.

MFS SCIENCE AND TECHNOLOGY FUND
The Fund commenced operations on January 2, 1997 and, from that date through
February 28, 1997, provided a total return of 0.80%. This return, which
assumes the reinvestment of distributions but excludes the effects of any
sales charges, compares to a 1.47% return over the same period for the NASDAQ-
OTC Index, an unmanaged index of common stocks traded on NASDAQ. The Fund's
performance during this period also compares to a -1.05% return for the
average technology fund as tracked by CDA/Wiesenberger, an independent firm
that reports mutual fund performance.
    The Fund's holdings are focused in the computer software, networking,
computer services, and semiconductor sectors. We believe that the long-term
outlook for these sectors is highly favorable due to several key factors, such
as growth in unit shipments of personal computers, increases in computing
power, new products, and expansion of international markets. The Fund seeks
companies that are fast growing, have market share leadership, and have a
defensible strategic position. Top holdings include Computer Associates,
Synopsis, and Intel. All three dominate their respective market segments, are
highly profitable, and have recently introduced new products that could
potentially accelerate growth.
    The Fund's performance is significantly impacted by the performance of its
industry sectors. Year to date, the stocks in this area have been extremely
volatile. Fund performance has been negatively affected by market declines in
the software and networking sectors. The Fund has, however, used its cash
position to purchase stocks whose prices have come down due to market
volatility but which, we believe, have substantial prospects for appreciation.

/s/ Irfan Ali
    ---------------------------------
    Irfan Ali
    Portfolio Manager

PORTFOLIO MANAGERS' PROFILES

IRFAN ALI joined MFS in 1993 as an industry specialist. A graduate of Harvard
College and the Harvard University Graduate School of Business Administration,
he was named Assistant Vice President in 1996 and Vice President in 1997.

JOHN F. BRENNAN has been a member of the MFS investment staff since 1985. A
graduate of the University of Rhode Island and Stanford University's Graduate
School of Business Administration, he began his career at MFS as an industry
specialist and was promoted to Assistant Vice President - Investments in 1987.
He was named Vice President - Investments in 1988 and Senior Vice President in
1995.

MITCHELL D. DYNAN joined the MFS Research Department in 1986. A graduate of
Tufts University, he was named Assistant Vice President - Investments in 1987
and Vice President - Investments in 1988. Mr. Dynan became Portfolio Manager
of Massachusetts Investors Trust in 1995.

JUDITH NOELLE LAMB is a Vice President of MFS and a member of the portfolio
management team of MFS Total Return Fund. She specializes in convertible
securities. Ms. Lamb joined MFS in 1992 as a research analyst. She is a
graduate of New York University and the New York University Graduate School of
Business.

ROBERT J. MANNING began his career at MFS in 1984 as a research analyst in the
High Yield Bond Department. A graduate of the University of Lowell and Boston
College's Graduate School of Management, he was named Vice President -
Investments in 1988 and Senior Vice President in 1993.

LISA B. NURME joined MFS in 1987 as a research analyst. She was named
Investment Officer in 1990, Assistant Vice President - Investments in 1991,
and Vice President - Investments in 1992. Ms. Nurme is a graduate of the
University of North Carolina.

KEVIN R. PARKE joined the MFS Research Department in 1985 as an industry
specialist. He was named Assistant Vice President - Investments in 1987, Vice
President - Investments and Portfolio Manager of MFS(R) Capital Growth Fund in
1988, Portfolio Manager of Massachusetts Investors Trust in 1991,  Senior Vice
President in 1993, and Director of Equity Research in 1995. Mr. Parke is a
graduate of Lehigh University and the Harvard University Graduate School of
Business Administration.

STEPHEN PESEK joined MFS as a research analyst in 1994 and was that year named
Vice President - Investments. He is a graduate of the University of
Pennsylvania and Columbia University.

BRIAN E. STACK joined the MFS Research Department as Vice President -
Investments in 1993. A graduate of Boston College and the Darden School of
Business of the University of Virginia, he has worked as an equity analyst
since 1987. Mr. Stack has served as Portfolio Manager of MFS Institutional
Emerging Equities Fund since January 1996.

INVESTMENT OBJECTIVES AND POLICIES

Currently, each Fund only offers Class A and Class I shares, which are
available for purchase at net asset value only by certain retirement plans
established for the benefit of employees of MFS and its affiliates and certain
of their family members who are also residents of the Commonwealth of
Massachusetts as well as members of the governing boards of the various Funds
sponsored by MFS.

MFS CORE GROWTH FUND
The objective of the Fund is capital appreciation. Under normal market
conditions, the Fund invests at least 65% of its total assets in equity
securities of well-known and established companies that have above-average
growth potential. The Fund may also invest up to 35% of its total assets in
equity securities of companies in the developing stages of their life cycles
that offer the potential for accelerated earnings or revenue growth (emerging
growth companies).

MFS EQUITY INCOME FUND
The primary objective of the Fund is reasonable income. In selecting
investments, the Fund also considers the potential for capital appreciation.
Under normal market conditions, the Fund invests at least 65% of its total
assets in income producing equity securities. The Fund may also invest up to
35% of its total assets in fixed-income securities, including up to 20% in
fixed-income securities rated "BB" or lower by Standard & Poor's Rating Group
or Fitch Investors Service, Inc., or "Ba" or lower by Moody's Investors
Service, Inc.

MFS SPECIAL OPPORTUNITIES FUND
The objective of the Fund is capital appreciation. Under normal market
conditions, the Fund invests substantially all of its assets in equity and
fixed-income securities that represent uncommon value by having the potential
for significant capital appreciation over a period of 12 months or longer.

MFS BLUE CHIP FUND
The objective of the Fund is capital appreciation. The Fund invests, under
normal market conditions, at least 65% of its total assets in equity
securities of well-known, stable and established companies that the Fund's
managers believe have above-average capital appreciation potential, and may
invest up to 35% of its total assets in other securities (including emerging
growth companies) offering an opportunity for capital appreciation.

MFS CONVERTIBLE SECURITIES FUND
The objective of the Fund is high total return through a combination of
current income and capital appreciation. The Fund invests, under normal market
conditions, at least 65% of its total assets in convertible securities, and
may invest up to 35% in nonconvertible corporate and U.S. government fixed-
income securities, equity securities, and money market instruments. The Fund
may engage in short sales.

MFS NEW DISCOVERY FUND
The objective of the Fund is capital appreciation. The Fund invests, under
normal market conditions, at least 65% of its total assets in equity
securities of companies of any size that the Fund's managers believe offer
superior prospects for growth, and emphasizes companies in the developing
stages of their life cycle that offer the potential for accelerated earnings
or revenue growth (emerging growth companies). The Fund may also invest up to
35% of its total assets in other securities offering an opportunity for
capital appreciation. The Fund may engage in short sales.

MFS RESEARCH INTERNATIONAL FUND
The objective of the Fund is capital appreciation. The Fund invests, under
normal market conditions, at least 65% of its total assets in equity
securities of companies whose principal activities are located outside the
United States, and may invest up to 35% of its total assets in other
securities offering an opportunity for capital appreciation.

MFS SCIENCE AND TECHNOLOGY FUND
The objective of the Fund is capital appreciation. The Fund invests, under
normal market conditions, at least 65% of its total assets in equity
securities of companies that the Fund's managers expect to benefit from
scientific and technological advances and improvements, including companies in
the developing stages of their life cycle that offer the potential for
accelerated earnings or revenue growth (emerging growth companies). The Fund
may also invest up to 35% of its total assets in other securities offering an
opportunity for capital appreciation. The Fund may engage in short sales.

PERFORMANCE SUMMARY

Because mutual funds like MFS Core Growth Fund, MFS Equity Income Fund and MFS
Special Opportunities Fund are designed for investors with long-term goals, we
have provided cumulative results as well as the average annual total returns
for Class A and Class I shares for the applicable time periods.

AVERAGE ANNUAL AND CUMULATIVE TOTAL RATES OF RETURN FOR PERIODS ENDED FEBRUARY
28, 1997

CLASS A INVESTMENT RESULTS
(net asset value change including reinvested distributions)

<TABLE>
<CAPTION>
MFS CORE GROWTH FUND                                                                 6 Months            1 Year     Life of Fund*

<S>                                                                                    <C>               <C>              <C>   
Cumulative Total Return                                                               +24.12%           +40.40%          +53.03%
- -----------------------------------------------------------------------------------------------------------------------------------
Average Annual Total Return                                                              --             +40.40%          +44.36%
- -----------------------------------------------------------------------------------------------------------------------------------
SEC Results                                                                              --             +33.77%          +38.41%
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
CLASS I INVESTMENT RESULTS
(net asset value change including reinvested distributions)

                                                                                     6 Months            1 Year     Life of Fund*
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>               <C>              <C>   
Cumulative Total Return                                                               +24.30%           +40.61%          +53.27%
- -----------------------------------------------------------------------------------------------------------------------------------
Average Annual Total Return                                                              --             +40.61%          +44.55%
- -----------------------------------------------------------------------------------------------------------------------------------
SEC Results                                                                              --             +33.97%          +38.59%
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
*For the period from the commencement of the Fund's operations, January 2,
 1996 to February 28, 1997.

<TABLE>
<CAPTION>
CLASS A INVESTMENT RESULTS
(net asset value change including reinvested distributions)

MFS EQUITY INCOME FUND                                                               6 Months            1 Year     Life of Fund*
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>               <C>              <C>   
Cumulative Total Return                                                               +20.26%           +28.50%          +33.12%
- -----------------------------------------------------------------------------------------------------------------------------------
Average Annual Total Return                                                              --             +28.50%          +28.00%
- -----------------------------------------------------------------------------------------------------------------------------------
SEC Results                                                                              --             +22.36%          +22.73%
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
CLASS I INVESTMENT RESULTS
(net asset value change including reinvested distributions)
                                                                                     6 Months            1 Year     Life of Fund*
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>               <C>              <C>   
Cumulative Total Return                                                               +20.16%           +28.40%          +33.02%
- -----------------------------------------------------------------------------------------------------------------------------------
Average Annual Total Return                                                              --             +28.40%          +27.92%
- -----------------------------------------------------------------------------------------------------------------------------------
SEC Results                                                                              --             +22.26%          +22.64%
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

CLASS A INVESTMENT RESULTS
(net asset value change including reinvested distributions)

<TABLE>
<CAPTION>
MFS SPECIAL OPPORTUNITY FUND                                                         6 Months            1 Year     Life of Fund*
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>               <C>              <C>   
Cumulative Total Return                                                               +12.59%           +22.39%          +27.90%
- -----------------------------------------------------------------------------------------------------------------------------------
Average Annual Total Return                                                              --             +22.39%          +23.66%
- -----------------------------------------------------------------------------------------------------------------------------------
SEC Results                                                                              --             +16.59%          +18.56%
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

CLASS I INVESTMENT RESULTS
(net asset value change including reinvested distributions)

<TABLE>
<CAPTION>
                                                                                     6 Months            1 Year     Life of Fund*
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>               <C>              <C>   
Cumulative Total Return                                                               +12.78%           +28.60%          +28.12%
- -----------------------------------------------------------------------------------------------------------------------------------
Average Annual Total Return                                                              --             +28.60%          +23.84%
- -----------------------------------------------------------------------------------------------------------------------------------
SEC Results                                                                              --             +16.79%          +18.73%
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

*For the period from the commencement of the Fund's investment operations,
 January 2, 1996 to February 28, 1997.

All results represent past performance and are not an indication of future
results. Investment return and principal value will fluctuate, and shares,
when redeemed, may be worth more or less than their original cost. Past
performance is no guarantee of future results.

SEC results include the maximum 4.75% sales charge.

Class I share results include the performance and operating expenses (e.g.,
Rule 12b-1 fees) of Class A shares for periods prior to the commencement of
offering of Class I shares. Because operating expenses attributable to Class A
shares are greater than those of Class I shares, Class I share performance
would have been higher had Class I shares been outstanding during the entire
period. The Class A share performance included in the Class I share
performance has been adjusted to reflect the fact that Class I shares have no
initial sales load.

Performance results reflect any applicable expense subsidies and waivers,
without which the results would have been less favorable. Current subsidies
and waivers may be discontinued at any time.

<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS CORE GROWTH FUND
Stocks - 80.0%
- ----------------------------------------------------------------------------------------------
Issuer                                                                  Shares           Value
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
U.S. Stocks - 73.8%
  Aerospace - 3.1%
    Allied Signal, Inc.                                                    200      $   14,450
    Goodrich (B.F.) Co.                                                    350          14,219
    Thiokol Corp.                                                          200          11,150
    United Technologies Corp.                                              200          15,050
                                                                                    ----------
                                                                                    $   54,869
- ----------------------------------------------------------------------------------------------
  Banks and Credit Companies - 0.7%
    Compass Bancshares, Inc.                                                75      $    3,347
    Norwest Corp.                                                          200           9,950
                                                                                    ----------
                                                                                    $   13,297
- ----------------------------------------------------------------------------------------------
  Business Machines - 1.4%
    HMT Technology Corp.*                                                  500      $    9,563
    Sun Microsystems, Inc.*                                                500          15,437
                                                                                    ----------
                                                                                    $   25,000
- ----------------------------------------------------------------------------------------------
  Business Machines - Peripherals - 0.7%
    Seagate Technology                                                     250      $   11,813
- ----------------------------------------------------------------------------------------------
  Business Services - 3.1%
    Administaff, Inc.*                                                     100      $    2,388
    Computer Sciences Corp.                                                250          16,875
    CUC International, Inc.                                                400           9,550
    Ikon Office Solutions, Inc.                                            400          16,500
    Loewen Group, Inc.                                                     260           8,385
    Nu Skin Asia Pacific, Inc.*                                            100           2,912
                                                                                    ----------
                                                                                    $   56,610
- ----------------------------------------------------------------------------------------------
  Cellular Telephones - 0.3%
    Telephone & Data Systems, Inc.                                         150      $    6,000
- ----------------------------------------------------------------------------------------------
  Chemicals - 2.2%
    Air Products & Chemicals, Inc.                                         150      $   11,119
    Betzdearborn, Inc.                                                     300          19,462
    Praxair, Inc.                                                          200           9,725
                                                                                    ----------
                                                                                    $   40,306
- ----------------------------------------------------------------------------------------------
  Computer Software - Personal Computers - 1.1%
    Electronic Arts, Inc.*                                                 200      $    6,250
    First Data Corp.                                                       200           7,325
    Spectrum Holobyte, Inc.*                                               700           5,775
                                                                                    ----------
                                                                                    $   19,350
- ----------------------------------------------------------------------------------------------
  Computer Software - Systems - 5.6%
    BMC Software, Inc.*                                                    780      $   33,394
    Cadence Design Systems, Inc.*                                          350          12,906
    Compaq Computer Corp.                                                  200          15,850
    Compuware Corp.                                                        300          18,675
    Oracle Systems Corp.*                                                  200           7,850
    USCS International, Inc.*                                              300           6,225
    Xionics Document Technologies*                                         400           6,800
                                                                                    ----------
                                                                                    $  101,700
- ----------------------------------------------------------------------------------------------
  Consumer Goods and Services - 6.8%
    Colgate-Palmolive Co.                                                  100      $   10,350
    Philip Morris Cos., Inc.                                               210          28,376
    Schweitzer-Mauduit International, Inc.                                 200           6,825
    Tyco International Ltd.                                              1,275          75,225
    United States Rentals, Inc.*                                           100           1,900
                                                                                    ----------
                                                                                    $  122,676
- ----------------------------------------------------------------------------------------------
  Electronics - 3.8%
    Altera Corp.*                                                          275      $   12,478
    Analog Devices, Inc.*                                                  100           2,325
    Atmel Corp.                                                            425          15,884
    Intel Corp.                                                            100          14,188
    Kulicke & Soffa Industries, Inc.*                                      500          13,250
    Xilinx, Inc.*                                                          250          11,281
                                                                                    ----------
                                                                                    $   69,406
- ----------------------------------------------------------------------------------------------
  Entertainment - 0.6%
    ITT Corp.*                                                             200      $   11,300
- ----------------------------------------------------------------------------------------------
  Financial Institutions - 3.0%
    Beneficial Corp.                                                       100      $    6,913
    Federal Home Loan Mortgage Corp.                                       400          11,900
    Federal National Mortgage Assn.                                        350          14,000
    Finova Group, Inc.                                                     100           7,637
    Franklin Resources, Inc.                                               100           5,850
    Student Loan Corp.                                                     200           8,075
                                                                                    ----------
                                                                                    $   54,375
- ----------------------------------------------------------------------------------------------
  Food and Beverage Products - 4.3%
    Earthgrains Co.                                                        175      $    9,581
    Hershey Foods Corp.                                                    400          18,250
    Hudson Foods, Inc.                                                     600          10,500
    PepsiCo, Inc.                                                          500          16,438
    Smith's Food & Drug Centers, Inc.                                      700          23,012
                                                                                    ----------
                                                                                    $   77,781
- ----------------------------------------------------------------------------------------------
  Forest and Paper Products - 1.3%
    Kimberly-Clark Corp.                                                    75      $    7,950
    Unisource Worldwide, Inc.                                              737          15,846
                                                                                    ----------
                                                                                    $   23,796
- ----------------------------------------------------------------------------------------------
  Insurance - 4.3%
    Chubb Corp.                                                            300      $   17,587
    Conseco, Inc.                                                          400          15,700
    ITT Hartford Group, Inc.                                               100           7,500
    PennCorp Financial Group, Inc.                                         400          14,000
    Reliastar Financial Corp.                                              200          12,400
    Travelers Group, Inc.                                                  200          10,725
                                                                                    ----------
                                                                                    $   77,912
- ----------------------------------------------------------------------------------------------
  Medical and Health Products - 3.1%
    Bristol-Myers Squibb Co.                                               250      $   32,625
    Mentor Corp.                                                           600          14,925
    Zoll Medical Corp.*                                                    800           8,600
                                                                                    ----------
                                                                                    $   56,150
- ----------------------------------------------------------------------------------------------
  Medical and Health Technology and Services - 6.7%
    AmeriSource Health Corp.*                                              200      $   10,075
    Cardinal Health, Inc.                                                  150           9,225
    HBO & Co.                                                              225          12,966
    HealthSouth Corp.*                                                     150           6,038
    Safeguard Health Enterprises, Inc.                                     450           6,637
    St. Jude Medical, Inc.                                                 500          19,750
    Tenet Healthcare Corp.                                                 800          21,700
    Trigon Healthcare, Inc.*                                               100           1,788
    United Healthcare Corp.                                                300          14,962
    Vivra, Inc.*                                                           600          17,850
                                                                                    ----------
                                                                                    $  120,991
- ----------------------------------------------------------------------------------------------
  Oil Services - 1.6%
    Baker Hughes, Inc.                                                     200      $    7,100
    Camco International, Inc.                                              200           7,725
    Diamond Offshore Drilling, Inc.*                                       125           7,375
    Input/Output, Inc.*                                                    300           6,413
                                                                                    ----------
                                                                                    $   28,613
- ----------------------------------------------------------------------------------------------
  Photographic Products - 1.0%
    Eastman Kodak Co.                                                      200      $   17,925
- ----------------------------------------------------------------------------------------------
  Railroads - 0.7%
    Burlington Northern Santa Fe Railway Co.                                75      $    6,244
    Wisconsin Central Transportation Corp.*                                200           7,175
                                                                                    ----------
                                                                                    $   13,419
- ----------------------------------------------------------------------------------------------
  Restaurants and Lodging - 5.0%
    Coldwater Creek, Inc.*                                                 100      $    1,838
    HFS, Inc.*                                                             360          24,660
    Hilton Hotels Corp.                                                    350           8,794
    Host Marriott Corp.*                                                   700          12,600
    Prime Hospitality Corp.*                                               500           8,250
    Promus Hotel Corp.*                                                    100           3,537
    Renaissance Hotel Group NV*                                            500          14,812
    Servico, Inc.*                                                         350           6,737
    Wyndham Hotel Corp.*                                                   350           9,844
                                                                                    ----------
                                                                                    $   91,072
- ----------------------------------------------------------------------------------------------
  Stores - 8.7%
    American Stores Co.                                                    300      $   13,425
    Ann Taylor Stores Corp.*                                               600          12,000
    CVS Corp.                                                              350          16,187
    Hollywood Entertainment Corp.*                                         500          12,000
    Longs Drug Stores Corp.                                                500          12,688
    Office Depot, Inc.*                                                    400           7,600
    Rite-Aid Corp.                                                       1,100          46,337
    Staples, Inc.*                                                       1,675          36,222
                                                                                    ----------
                                                                                    $  156,459
- ----------------------------------------------------------------------------------------------
  Supermarkets - 2.2%
    Kroger Co.*                                                            300      $   15,900
    Safeway, Inc.*                                                         500          24,062
                                                                                    ----------
                                                                                    $   39,962
- ----------------------------------------------------------------------------------------------
  Telecommunications - 1.6%
    Cable Design Technologies Corp.                                        550      $   14,575
    Lucent Technologies, Inc.                                              250          13,469
                                                                                    ----------
                                                                                    $   28,044
- ----------------------------------------------------------------------------------------------
  Utilities - Gas - 0.5%
    National Fuel Gas Co.                                                  200      $    8,600
- ----------------------------------------------------------------------------------------------
  Utilities - Telephone - 0.4%
    MCI Communications Corp.                                               225      $    8,044
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                   $1,335,470
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 6.2%
  Canada - 1.0%
    Canadian National Railway Co. (Railroads)                              200      $    7,275
    Philip Environmental, Inc. (Business Services)                         650          10,644
                                                                                    ----------
                                                                                    $   17,919
- ----------------------------------------------------------------------------------------------
  Ireland - 0.8%
    Elan Corp. PLC, ADR (Medical and Health Products)*                     450      $   15,581
- ----------------------------------------------------------------------------------------------
  Sweden - 0.8%
    Astra AB, "A", ADR (Medical and Health Products)                       200      $    9,625
    Astra AB, "B", ADR (Pharmaceuticals)                                   100           4,674
                                                                                    ----------
                                                                                    $   14,299
- ----------------------------------------------------------------------------------------------
  Switzerland - 1.9%
    Logitech International (Electrical Equipment)*                         100      $   17,023
    Novartis AG (Pharmaceuticals)                                           15          17,151
                                                                                    ----------
                                                                                    $   34,174
- ----------------------------------------------------------------------------------------------
  United Kingdom - 1.7%
    Danka Business Systems, ADR (Business Services)                        250      $   10,469
    Grand Metropolitan (Food and Beverage Products)                      1,300           9,644
    SmithKline-Beecham PLC, ADR (Medical and Health
      Products)                                                            150          11,137
                                                                                    ----------
                                                                                    $   31,250
- ----------------------------------------------------------------------------------------------
Total Foreign Stocks                                                                $  113,223
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $1,377,962)                                          $1,448,693
- ----------------------------------------------------------------------------------------------

Warrant - 0.1%
- ----------------------------------------------------------------------------------------------
  Ciba Specialty Chemicals AG* (Identified Cost, $0)                        15      $      950
- ----------------------------------------------------------------------------------------------

<CAPTION>
Short-Term Obligation - 21.0%
- ----------------------------------------------------------------------------------------------
                                                              Principal Amount
                                                                 (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
  Federal Home Loan Bank, due 3/03/97, at Amortized Cost                 $ 380      $  379,888
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $1,757,850)                                     $1,829,531

Other Assets, Less Liabilities - (1.1)%                                                (19,585)
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                                 $1,809,946
- ----------------------------------------------------------------------------------------------
*Non-income producing security.
</TABLE>

See notes to financial statements
<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS EQUITY INCOME FUND
Stocks - 85.3%
- ----------------------------------------------------------------------------------------------
Issuer                                                                    Shares         Value
- ----------------------------------------------------------------------------------------------
U.S. Stocks - 78.1%
  Aerospace - 5.1%
<S>                                                                        <C>        <C>     
    General Dynamics Corp.                                                   140      $  9,415
    Goodrich (B.F.) Co.                                                      300        12,187
    United Technologies Corp.                                                360        27,090
                                                                                      --------
                                                                                      $ 48,692
- ----------------------------------------------------------------------------------------------
  Automotive - 1.7%
    Ford Motor Co.                                                           170      $  5,589
    TRW, Inc.                                                                200        10,475
                                                                                      --------
                                                                                      $ 16,064
- ----------------------------------------------------------------------------------------------
  Banks and Credit Companies - 7.7%
    Bank of Boston Corp.                                                     120      $  9,045
    Chase Manhattan Corp.                                                     90         9,011
    First Commerce Corp.                                                     250        10,375
    First Hawaiian, Inc.                                                     300         9,975
    Fleet/Norstar Financial Group, Inc.                                      200        12,200
    National City Corp.                                                      250        12,625
    PNC Bank Corp.                                                           230         9,746
                                                                                      --------
                                                                                      $ 72,977
- ----------------------------------------------------------------------------------------------
  Business Machines - 0.1%
    Digital Equipment Corp.*                                                  30      $    983
- ----------------------------------------------------------------------------------------------
  Chemicals - 6.3%
    Air Products & Chemicals, Inc.                                           200      $ 14,825
    Betzdearborn, Inc.                                                       270        17,516
    Dexter Corp.                                                             500        14,750
    Ferro Corp.                                                              420        13,230
                                                                                      --------
                                                                                      $ 60,321
- ----------------------------------------------------------------------------------------------
  Construction Services - 1.1%
    Martin Marietta Materials, Inc.                                          400      $ 10,550
- ----------------------------------------------------------------------------------------------
  Consumer Goods and Services - 4.5%
    American Brands, Inc.                                                    140      $  7,368
    Colgate-Palmolive Co.                                                     80         8,280
    Philip Morris Cos., Inc.                                                 130        17,566
    Sherwin Williams Co.                                                     180        10,102
                                                                                      --------
                                                                                      $ 43,316
- ----------------------------------------------------------------------------------------------
  Electrical Equipment - 2.9%
    Cooper Industries, Inc.                                                  220      $  9,735
    General Electric Co.                                                     100        10,288
    Hubbell, Inc.                                                            190         8,051
                                                                                      --------
                                                                                      $ 28,074
- ----------------------------------------------------------------------------------------------
  Financial Institutions - 1.3%
    Union Planters Corp.                                                     280      $ 12,530
- ----------------------------------------------------------------------------------------------
  Food and Beverage Products - 4.1%
    General Mills, Inc.                                                      100      $  6,525
    Heinz (H.J.) Co.                                                         250        10,406
    Hormel Foods Corp.                                                       400        10,500
    PepsiCo, Inc.                                                            350        11,506
                                                                                      --------
                                                                                      $ 38,937
- ----------------------------------------------------------------------------------------------
  Forest and Paper Products - 1.1%
    Unisource Worldwide, Inc.                                                500      $ 10,750
- ----------------------------------------------------------------------------------------------
  Insurance - 4.4%
    Allstate Corp.                                                           140      $  8,873
    Chubb Corp.                                                              200        11,725
    CIGNA Corp.                                                               70        10,701
    Torchmark Corp.                                                          180        10,597
                                                                                      --------
                                                                                      $ 41,896
- ----------------------------------------------------------------------------------------------
  Medical and Health Products - 3.0%
    Bristol-Myers Squibb Co.                                                 100      $ 13,050
    Pharmacia & Upjohn, Inc.                                                 230         8,481
    Rhone-Poulenc Rorer, Inc.                                                100         7,100
                                                                                      --------
                                                                                      $ 28,631
- ----------------------------------------------------------------------------------------------
  Medical and Health Technology and Services - 0.9%
    United Healthcare Corp.                                                  170      $  8,479
- ----------------------------------------------------------------------------------------------
  Metals and Minerals - 0.8%
    Century Aluminum Co.                                                     480      $  7,920
- ----------------------------------------------------------------------------------------------
  Oils - 5.2%
    Atlantic Richfield Co.                                                    60      $  7,500
    Exxon Corp.                                                              110        10,986
    Mobil Corp.                                                              100        12,275
    Texaco, Inc.                                                             100         9,887
    USX-Marathon Group                                                       350         9,319
                                                                                      --------
                                                                                      $ 49,967
- ----------------------------------------------------------------------------------------------
  Photographic Products - 1.4%
    Eastman Kodak Co.                                                        150      $ 13,444
- ----------------------------------------------------------------------------------------------
  Pollution Control - 0.7%
    WMX Technologies, Inc.                                                   200      $  6,325
- ----------------------------------------------------------------------------------------------
  Printing and Publishing - 0.4%
    Gannett Co., Inc.                                                         50      $  3,988
- ----------------------------------------------------------------------------------------------
  Real Estate Investment Trusts - 5.4%
    Boykin Lodging Co.*                                                      170      $  3,740
    Brandywine Reality Trust                                                 400         8,250
    Golf Trust America, Inc.*                                                450        10,912
    Hospitality Properties Trust                                             280         9,065
    Storage Trust Reality                                                    330         8,869
    TriNet Corporate Realty Trust, Inc.                                      300        10,238
                                                                                      --------
                                                                                      $ 51,074
- ----------------------------------------------------------------------------------------------
  Stores - 2.0%
    Rite-Aid Corp.                                                           230      $  9,689
    Smith's Food & Drug Centers, Inc.                                        300         9,863
                                                                                      --------
                                                                                      $ 19,552
- ----------------------------------------------------------------------------------------------
  Supermarkets - 1.1%
    Kroger Co.*                                                              200      $ 10,600
- ----------------------------------------------------------------------------------------------
  Utilities - Electric - 5.3%
    Carolina Power & Light Co.                                               100      $  3,713
    Cinergy Corp.                                                            270         9,315
    Dominion Resources, Inc.                                                 250        10,063
    FPL Group, Inc.                                                          140         6,370
    Pinnacle West Capital Corp.                                              280         8,750
    Public Service Co. of Colorado                                           100         3,900
    Sierra Pacific Resources                                                 280         8,190
                                                                                      --------
                                                                                      $ 50,301
- ----------------------------------------------------------------------------------------------
  Utilities - Gas - 6.8%
    Brooklyn Union Gas Co.                                                   280      $  7,980
    Energen Corp.                                                            300         9,000
    KN Energy, Inc.                                                          230         9,085
    National Fuel Gas Co.                                                    250        10,750
    Oneok, Inc.                                                              300         8,550
    PanEnergy Corp.                                                          180         7,672
    UGI Corp.                                                                480        11,940
                                                                                      --------
                                                                                      $ 64,977
- ----------------------------------------------------------------------------------------------
  Utilities - Telephone - 4.8%
    GTE Corp.                                                                280      $ 13,090
    MCI Communications Corp.                                                 300        10,725
    Pacific Telesis Group                                                    250        10,187
    Sprint Corp.                                                             250        11,375
                                                                                      --------
                                                                                      $ 45,377
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                     $745,725
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 7.2%
  Canada - 1.3%
    Canadian National Railway Co. (Railroads)                                340      $ 12,368
- ----------------------------------------------------------------------------------------------
  France - 1.1%
    Elf Aquitaine, ADR (Oils)                                                220      $ 10,560
- ----------------------------------------------------------------------------------------------
  Switzerland - 1.2%
    Novartis AG (Pharmaceuticals)*                                            10      $ 11,434
- ----------------------------------------------------------------------------------------------
  United Kingdom - 3.6%
    British Petroleum PLC, ADR (Oils)                                        110      $ 14,561
    Grand Metropolitan (Food and Beverage Products)                        1,300         9,645
    SmithKline-Beecham PLC, ADR (Medical and Health
      Products)                                                              140        10,395
                                                                                      --------
                                                                                      $ 34,601
- ----------------------------------------------------------------------------------------------
Total Foreign Stocks                                                                  $ 68,963
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $721,896)                                              $814,688
- ----------------------------------------------------------------------------------------------

Warrant - 0.1%
- ----------------------------------------------------------------------------------------------
  Ciba Specialty Chemicals AG* (Identified Cost, $0)                          10      $    633
- ----------------------------------------------------------------------------------------------

<CAPTION>
Convertible Bonds - 1.5%
- ----------------------------------------------------------------------------------------------
                                                                Principal Amount
                                                                   (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                          <C>      <C>     
  North American Vaccine, Inc., 6.5s, 2003##                                 $ 8      $  8,080
  Robbins & Myers, Inc., 6.5s, 2003                                            5         5,875
- ----------------------------------------------------------------------------------------------
Total Convertible Bonds (Identified Cost, $13,440)                                    $ 13,955
- ----------------------------------------------------------------------------------------------

<CAPTION>
Preferred Stock - 1.1%
- ----------------------------------------------------------------------------------------------
Issuer                                                                    Shares         Value
- ----------------------------------------------------------------------------------------------
<S>                                                                          <C>      <C>     
Germany - 1.1%
  Henkel KGaA (Consumer Goods and Services) (Identified
    Cost, $8,995)                                                            200      $ 10,670
- ----------------------------------------------------------------------------------------------

Convertible Preferred Stocks - 9.9%
- ----------------------------------------------------------------------------------------------
Aerospace - 0.8%
  Loral Space & Communications Corp., 6s, 2006##                             150      $  7,725
- ----------------------------------------------------------------------------------------------
Financial Institutions - 1.9%
  Finova Finance Trust, 5.5s, 2016                                           160      $  9,240
  Penncorp Financial Group, Inc., $3.50##                                    160         9,440
                                                                                      --------
                                                                                      $ 18,680
- ----------------------------------------------------------------------------------------------
Medical and Health Technology and Services - 1.0%
  McKesson Financing Trust, $2.50, 2027##                                    180      $  9,518
- ----------------------------------------------------------------------------------------------
Metals and Minerals - 0.9%
  Timet Capital Trust, "I", 6.625s, 2026##                                   170      $  8,245
- ----------------------------------------------------------------------------------------------
Oils - 1.9%
  Tosco Financing Trust, 5.75s##                                             160      $  8,540
  Unocal Capital Trust Corp., 6.25s, 2026                                    171         9,597
                                                                                      --------
                                                                                      $ 18,137
- ----------------------------------------------------------------------------------------------
Pollution Control - 1.1%
  Browning-Ferris Industries, Inc., ACES, 7.25%                              320      $ 10,280
- ----------------------------------------------------------------------------------------------
Utilities - Gas - 2.4%
  Enron Corp., 6.25s                                                         400      $  8,350
  Williams Cos., Inc., $3.50##                                                50         5,131
                                                                                      --------
                                                                                      $ 13,481
- ----------------------------------------------------------------------------------------------
Utilities - Telephone - 0.9%
  Salomon, Inc., DECS (Cincinnati Bell, Inc.), 6.25s, 2001                   140      $  8,575
- ----------------------------------------------------------------------------------------------
Total Convertible Preferred Stocks (Identified Cost,
$89,424)                                                                              $ 94,641
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $833,755)                                         $934,587

Other Assets, Less Liabilities - 2.1%                                                   20,395
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                                   $954,982
- ----------------------------------------------------------------------------------------------
 *Non-income producing security.
##SEC Rule 144A Restriction.
</TABLE>

See notes to financial statements
<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS SPECIAL OPPORTUNITIES FUND
Stocks - 86.4%
- ----------------------------------------------------------------------------------------------
Issuer                                                                  Shares           Value
- ----------------------------------------------------------------------------------------------
<S>                                                                     <C>         <C>       
U.S. Stocks - 78.1%
  Advertising - 0.3%
    Outdoor Systems, Inc.*                                                 400      $   12,000
- ----------------------------------------------------------------------------------------------
  Aerospace - 3.4%
    Allied Signal, Inc.                                                    460      $   33,235
    B.E. Aerospace, Inc.*                                                1,400          33,950
    Goodrich (B.F.) Co.                                                    550          22,344
    Thiokol Corp.                                                          500          27,875
                                                                                    ----------
                                                                                    $  117,404
- ----------------------------------------------------------------------------------------------
  Agricultural Products - 0.5%
    AGCO Corp.                                                             600      $   17,025
- ----------------------------------------------------------------------------------------------
  Automotive - 1.6%
    Exide Corp.                                                          2,500      $   49,062
    Ford Motor Co.                                                         200           6,575
                                                                                    ----------
                                                                                    $   55,637
- ----------------------------------------------------------------------------------------------
  Banks and Credit Companies - 0.6%
    Wells Fargo & Co.                                                       66      $   20,081
- ----------------------------------------------------------------------------------------------
  Building - 4.7%
    Newport News Shipbuilding, Inc.                                        900      $   13,950
    Nortek, Inc.*                                                        3,000          72,000
    Walter Industries, Inc.*                                             5,000          75,937
                                                                                    ----------
                                                                                    $  161,887
- ----------------------------------------------------------------------------------------------
  Business Machines - 0.5%
    Sun Microsystems, Inc.*                                                600      $   18,525
- ----------------------------------------------------------------------------------------------
  Business Machines - Peripherals - 0.5%
    Seagate Technology*                                                    400      $   18,900
- ----------------------------------------------------------------------------------------------
  Business Services - 1.2%
    ADT Ltd.*                                                            1,405      $   30,559
    Canon, Inc.                                                            115          12,017
                                                                                    ----------
                                                                                    $   42,576
- ----------------------------------------------------------------------------------------------
  Cellular Telephones - 0.7%
    Telephone & Data Systems, Inc.                                         600      $   24,000
- ----------------------------------------------------------------------------------------------
  Chemicals - 3.3%
    Betzdearborn, Inc.                                                     127      $    8,239
    Dexter Corp.                                                           600          17,700
    Ferro Corp.                                                            400          12,600
    NL Industries, Inc.                                                  6,500          73,938
                                                                                    ----------
                                                                                    $  112,477
- ----------------------------------------------------------------------------------------------
  Computer Software - Personal Computers - 0.3%
    TDK Corp.                                                              130      $    8,775
- ----------------------------------------------------------------------------------------------
  Computer Software - Systems - 1.8%
    Cerner Corp.*                                                          900      $   13,725
    Compaq Computer Corp.*                                                 300          23,775
    Sybase, Inc.*                                                        1,600          26,200
                                                                                    ----------
                                                                                    $   63,700
- ----------------------------------------------------------------------------------------------
  Conglomerates - 2.8%
    Insilco Corp.*                                                       1,300      $   47,450
    MAXXAM, Inc.*                                                        1,000          48,125
                                                                                    ----------
                                                                                    $   95,575
- ----------------------------------------------------------------------------------------------
  Consumer Goods and Services - 7.8%
    Darling International, Inc.*                                         2,300      $   56,063
    Philip Morris Cos., Inc.                                               290          39,186
    Silgan Holdings, Inc.*                                                 100           2,550
    Thermadyne Industries Holdings Corp.*                                2,000          55,750
    Tyco International Ltd.                                              1,300          76,700
    Westpoint Stevens, Inc.*                                             1,100          37,950
                                                                                    ----------
                                                                                    $  268,199
- ----------------------------------------------------------------------------------------------
  Containers - 3.6%
    Atlantis Plastics, Inc.*                                             5,000      $   43,750
    Gaylord Container Corp.*                                            10,000          63,750
    Jefferson Smurfit Corp.*                                               600           8,175
    Stone Container Corp.                                                  600           7,800
                                                                                    ----------
                                                                                    $  123,475
- ----------------------------------------------------------------------------------------------
  Electronics - 0.8%
    Atmel Corp.*                                                           300      $   11,213
    Intel Corp.                                                             80          11,350
    Sony Corp.                                                              50           3,600
                                                                                    ----------
                                                                                    $   26,163
- ----------------------------------------------------------------------------------------------
  Entertainment - 3.0%
    Casino America, Inc.*                                                1,100      $    3,369
    Chancellor Broadcast Corp., "A"*                                       400          10,900
    Cox Radio, Inc.*                                                       300           5,737
    EZ Communications, Inc.*                                               280          11,830
    Harrah's Entertainment, Inc.*                                        2,100          38,850
    Harveys Casino Resorts                                                 200           3,100
    ITT Corp.*                                                             140           7,910
    LIN Television Corp.*                                                  350          14,525
    Showboat, Inc.                                                         400           8,200
                                                                                    ----------
                                                                                    $  104,421
- ----------------------------------------------------------------------------------------------
  Financial Institutions - 1.3%
    Federal Home Loan Mortgage Corp.                                       760      $   22,610
    Union Planters Corp.                                                   460          20,585
                                                                                    ----------
                                                                                    $   43,195
- ----------------------------------------------------------------------------------------------
  Food and Beverage Products - 1.8%
    Dr. Pepper Bottling Holdings, Inc.                                   2,400      $   37,350
    Smith's Food & Drug Centers, Inc.                                      720          23,670
                                                                                    ----------
                                                                                    $   61,020
- ----------------------------------------------------------------------------------------------
  Forest and Paper Products - 0.3%
    Kimberly-Clark Corp.                                                    45      $    4,770
    Unisource Worldwide, Inc.                                              280           6,020
                                                                                    ----------
                                                                                    $   10,790
- ----------------------------------------------------------------------------------------------
  Insurance - 3.8%
    Chubb Corp.                                                            400      $   23,450
    Integon Corp.                                                        2,800          36,050
    ITT Hartford Group, Inc.                                               150          11,250
    PennCorp Financial Group, Inc.                                         800          28,000
    PMI Group, Inc.                                                        170           9,307
    Reliastar Financial Corp.                                              150           9,300
    Safeco Corp.                                                           300          12,525
                                                                                    ----------
                                                                                    $  129,882
- ----------------------------------------------------------------------------------------------
  Machinery - 0.7%
    Greenfield Industries, Inc.                                            400      $    8,750
    Stewart & Stevenson Services, Inc.                                     600          15,675
                                                                                    ----------
                                                                                    $   24,425
- ----------------------------------------------------------------------------------------------
  Medical and Health Products - 1.4%
    Pharmacia & Upjohn, Inc.                                               580      $   21,387
    Rhone-Poulenc Rorer, Inc.                                              300          21,300
    Uromed Corp.*                                                          900           7,313
                                                                                    ----------
                                                                                    $   50,000
- ----------------------------------------------------------------------------------------------
  Medical and Health Technology and Services - 2.2%
    AmeriSource Health Corp.*                                              200      $   10,075
    Cardinal Health, Inc.                                                  300          18,450
    Pacificare Health Systems, Inc.*                                       100           8,375
    Quorum Health Group, Inc.*                                             100           3,137
    St. Jude Medical, Inc.*                                                900          35,550
    Trigon Healthcare, Inc.*                                               100           1,788
                                                                                    ----------
                                                                                    $   77,375
- ----------------------------------------------------------------------------------------------
  Metals and Minerals - 1.6%
    Commonwealth Aluminum Corp.                                          3,000      $   54,000
- ----------------------------------------------------------------------------------------------
  Oil Services - 0.1%
    Tidewater, Inc.                                                        100      $    4,300
- ----------------------------------------------------------------------------------------------
  Oils - 0.4%
    Texaco, Inc.                                                           140      $   13,843
- ----------------------------------------------------------------------------------------------
  Photographic Products - 1.5%
    Anacomp, Inc.*                                                       3,725      $   43,769
    Eastman Kodak Co.                                                       70           6,274
                                                                                    ----------
                                                                                    $   50,043
- ----------------------------------------------------------------------------------------------
  Railroads - 1.4%
    Burlington Northern Santa Fe Railway Co.                               300      $   24,975
    Wisconsin Central Transportation Corp.*                                680          24,395
                                                                                    ----------
                                                                                    $   49,370
- ----------------------------------------------------------------------------------------------
  Restaurants and Lodging - 6.4%
    Apple South, Inc.                                                      500      $    6,750
    Applebee's International, Inc.                                         100           2,525
    Hilton Hotels Corp.                                                  1,580          39,697
    Host Marriott Corp.*                                                 1,210          21,780
    La Quinta Inns, Inc.                                                   600          11,850
    Prime Hospitality Corp.*                                             1,700          28,050
    Promus Hotel Corp.*                                                  2,400          84,900
    Servico*                                                             1,400          26,950
                                                                                    ----------
                                                                                    $  222,502
- ----------------------------------------------------------------------------------------------
  Special Products and Services - 1.5%
    IMO Industries, Inc.*                                               17,000      $   53,125
- ----------------------------------------------------------------------------------------------
  Stores - 4.5%
    Ann Taylor Stores Corp.*                                               300      $    6,000
    Carson Pirie Scott & Co.*                                            1,800          49,050
    Gantos, Inc.*                                                       15,000          32,812
    Gymboree Corp.*                                                        500          12,313
    Rite-Aid Corp.                                                         850          35,806
    Trans World Entertainment Corp.*                                     1,800          18,900
                                                                                    ----------
                                                                                    $  154,881
- ----------------------------------------------------------------------------------------------
  Supermarkets - 2.7%
    Ingles Markets, Inc.                                                 3,900      $   58,500
    Vons Cos., Inc.*                                                       500          34,062
                                                                                    ----------
                                                                                    $   92,562
- ----------------------------------------------------------------------------------------------
  Telecommunications - 6.2%
    Cabletron Systems, Inc.*                                               500      $   15,000
    Cellular Communications International*                               2,600          73,450
    Echostar Communications Corp.*                                       1,500          34,125
    Granite Broadcasting Corp.*                                          3,800          36,575
    HSN, Inc.*                                                           1,775          45,706
    Lucent Technologies, Inc.                                              200          10,775
                                                                                    ----------
                                                                                    $  215,631
- ----------------------------------------------------------------------------------------------
  Utilities - Electric - 1.4%
    El Paso Electric Co.*                                                6,800      $   47,600
- ----------------------------------------------------------------------------------------------
  Utilities - Telephone - 1.5%
    MCI Communications Corp.                                             1,460      $   52,195
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                   $2,697,559
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 8.3%
  Canada - 1.4%
    Gulf Canada Resources Ltd. (Oil Services)*                           7,000      $   49,000
- ----------------------------------------------------------------------------------------------
  Hong Kong - 0.8%
    Liu Chong Hing Bank (Banks and Credit Companies)                     1,000      $    1,899
    Semi-Tech (Global) Ltd. (Electronics)*                              21,000          24,409
                                                                                    ----------
                                                                                    $   26,308
- ----------------------------------------------------------------------------------------------
  Japan - 0.2%
    Sony Corp. (Electronics)                                               100      $    7,221
- ----------------------------------------------------------------------------------------------
  New Zealand - 1.0%
    Tranz Rail Holdings Ltd., ADR (Railroads)*                           2,000      $   35,500
- ----------------------------------------------------------------------------------------------
  Portugal - 0.3%
    Banco Totta E Acores (Financial Institutions)                          800      $   11,903
- ----------------------------------------------------------------------------------------------
  South Korea - 0.3%
    Korea Mobile Telecommunications, ADR
      (Telecommunications)                                                 900      $   11,138
- ----------------------------------------------------------------------------------------------
  Switzerland - 0.8%
    Novartis AG (Pharmaceuticals)*                                          25      $   28,586
- ----------------------------------------------------------------------------------------------
  United Kingdom - 3.5%
    ASDA Group PLC (Retail)                                             11,000      $   20,032
    British Petroleum PLC, ADR (Oils)                                      100          13,238
    Central European Media Enterprises Ltd.
      (Entertainment)*                                                     600          20,250
    Central Transport Rental Group PLC, ADR (Special
      Products and Services)*                                           11,188           4,195
    Comcast UK Cable Partners Ltd. (Telecommunications)*                   500           5,875
    News Corp. Ltd., ADR (Entertainment)                                 2,900          51,837
    Storehouse PLC (Retail)                                              2,200           9,829
                                                                                    ----------
                                                                                    $  125,256
- ----------------------------------------------------------------------------------------------
Total Foreign Stocks                                                                $  294,912
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $2,881,788)                                          $2,992,471
- ----------------------------------------------------------------------------------------------

Warrant
- ----------------------------------------------------------------------------------------------
  Ciba Specialty Chemicals AG (Chemicals)* (Identified Cost, $0)            21      $    1,329
- ----------------------------------------------------------------------------------------------

<CAPTION>
Bonds - 2.3%
- ----------------------------------------------------------------------------------------------
                                                              Principal Amount
                                                                 (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
Entertainment - 0.4%
  Marvel Holdings, Inc., 0s, 1998**                                      $  80      $   13,601
- ----------------------------------------------------------------------------------------------
Medical and Health Technology and Services - 0.1%
  Unilab Corp., 11s, 2006                                                $   5      $    3,550
- ----------------------------------------------------------------------------------------------
Restaurants and Lodging - 1.7%
  Harrah's Jazz Co., 14.25s, 2001**                                      $  75      $   35,250
  Santa Fe Hotel, Inc., 11s, 2000                                           35          24,500
                                                                                    ----------
                                                                                    $   59,750
- ----------------------------------------------------------------------------------------------
Telecommunications - 0.1%
  Mobilemedia Communications, Inc., 9.375s, 2007                         $  10      $    1,950
- ----------------------------------------------------------------------------------------------
Total Bonds (Identified Cost, $105,299)                                             $   78,851
- ----------------------------------------------------------------------------------------------

<CAPTION>
Preferred Stocks - 1.5%
- ----------------------------------------------------------------------------------------------
                                                                        Shares
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
  Harvard Industries, Inc. (Automotive)                                  1,100      $    4,675
  Renaissance Cosmetics, Inc. (Consumer Goods and Services)##*               1              87
  Renaissance Cosmetics, Inc. (Consumer Goods and Services)+*               20          20,000
  Supermarkets General Holdings Corp. (Supermarkets)*                    1,100          27,500
- ----------------------------------------------------------------------------------------------
Total Preferred Stocks (Identified Cost, $58,000)                                   $   52,262
- ----------------------------------------------------------------------------------------------

Equity Option - 1.2%
- ----------------------------------------------------------------------------------------------
  Standard & Poor Index 500 Put (Identified Cost, $44,118)                   6      $   40,500
- ----------------------------------------------------------------------------------------------

<CAPTION>
Short-Term Obligation - 8.1%
- ----------------------------------------------------------------------------------------------
                                                              Principal Amount
                                                                 (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
  Federal Home Loan Bank, due 3/03/97, at Amortized Cost                 $ 280      $  279,918
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $3,369,123)                                     $3,445,331
- ----------------------------------------------------------------------------------------------

<CAPTION>
Short Sells - (2.0)%
- ----------------------------------------------------------------------------------------------
                                                                        Shares
- ----------------------------------------------------------------------------------------------
<S>                                                                    <C>          <C>       
  Jayhawk Acceptance Corp.*                                            (2,700)      $   (6,412)
  Olympic Financial Ltd.*                                              (4,800)         (52,800)
  Station Casinos, Inc.                                                (1,100)         (10,313)
- ----------------------------------------------------------------------------------------------
Total Short Sells (Identified Cost, $(66,341))                                      $  (69,525)
- ----------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 2.5%                                               $   78,973
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                                 $3,454,779
- ----------------------------------------------------------------------------------------------
 *Non-income producing security.
**Non-income producing security in default.
 +Restricted security.
##SEC Rule 144A Restriction.
</TABLE>

See notes to financial statements
<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS BLUE CHIP FUND
Stocks - 99.6%
- ----------------------------------------------------------------------------------------------
Issuer                                                                    Shares         Value
- ----------------------------------------------------------------------------------------------
<S>                                                                          <C>      <C>     
U.S. Stocks - 97.3%
  Aerospace - 6.3%
    General Dynamics Corp.                                                   100      $  6,725
    Goodrich (B.F.) Co.                                                      200         8,125
    Lockheed Martin Corp.                                                    120        10,620
    McDonnell-Douglas Corp.                                                  130         8,255
    United Technologies Corp.                                                 80         6,020
                                                                                      --------
                                                                                      $ 39,745
- ----------------------------------------------------------------------------------------------
  Apparel and Textiles - 1.0%
    Nike, Inc., "B"                                                           90      $  6,469
- ----------------------------------------------------------------------------------------------
  Banks and Credit Companies - 4.8%
    Chase Manhattan Corp.                                                     60      $  6,007
    Corestates Financial Corp.                                               110         5,789
    First Bank Systems, Inc.                                                  80         6,280
    National City Corp.                                                      120         6,060
    Norwest Corp.                                                            120         5,970
                                                                                      --------
                                                                                      $ 30,106
- ----------------------------------------------------------------------------------------------
  Business Machines - 2.6%
    International Business Machines Corp.                                     70      $ 10,062
    Sun Microsystems, Inc.*                                                  210         6,484
                                                                                      --------
                                                                                      $ 16,546
- ----------------------------------------------------------------------------------------------
  Business Services - 2.4%
    DST Systems, Inc.*                                                       280      $  9,205
    Ikon Office Solutions, Inc.                                              140         5,775
                                                                                      --------
                                                                                      $ 14,980
- ----------------------------------------------------------------------------------------------
  Cellular Telephones - 1.0%
    AirTouch Communications, Inc.*                                           220      $  5,995
- ----------------------------------------------------------------------------------------------
  Chemicals - 3.4%
    Air Products & Chemicals, Inc.                                           100      $  7,413
    du Pont (E.I.) de Nemours & Co., Inc.                                     70         7,507
    Praxair, Inc.                                                            130         6,321
                                                                                      --------
                                                                                      $ 21,241
- ----------------------------------------------------------------------------------------------
  Computer Software - Personal Computers - 3.3%
    First Data Corp.                                                         250      $  9,156
    Microsoft Corp.*                                                         120        11,700
                                                                                      --------
                                                                                      $ 20,856
- ----------------------------------------------------------------------------------------------
  Computer Software - Systems - 3.9%
    BMC Software, Inc.*                                                      150      $  6,422
    Computer Associates International, Inc.                                  210         9,135
    Oracle Systems Corp.*                                                    230         9,027
                                                                                      --------
                                                                                      $ 24,584
- ----------------------------------------------------------------------------------------------
  Consumer Goods and Services - 12.4%
    Avon Products, Inc.                                                      100      $  5,825
    Colgate-Palmolive Co.                                                     90         9,315
    Gillette Co.                                                             100         7,912
    Philip Morris Cos., Inc.                                                 100        13,512
    Procter & Gamble Co.                                                      70         8,409
    Service Corp. International                                              300         8,700
    Sherwin Williams Co.                                                     100         5,613
    Tupperware Corp.                                                         100         4,475
    Tyco International Ltd.                                                  150         8,850
    UST, Inc.                                                                160         4,940
                                                                                      --------
                                                                                      $ 77,551
- ----------------------------------------------------------------------------------------------
  Electrical Equipment - 3.0%
    General Electric Co.                                                     130      $ 13,374
    Honeywell, Inc.                                                           80         5,690
                                                                                      --------
                                                                                      $ 19,064
- ----------------------------------------------------------------------------------------------
  Electronics - 1.7%
    Intel Corp.                                                               75      $ 10,641
- ----------------------------------------------------------------------------------------------
  Financial Institutions - 3.1%
    Beneficial Corp.                                                          90      $  6,221
    Federal Home Loan Mortgage Corp.                                         200         5,950
    State Street Boston Corp.                                                 90         7,234
                                                                                      --------
                                                                                      $ 19,405
- ----------------------------------------------------------------------------------------------
  Food and Beverage Products - 4.6%
    CPC International, Inc.                                                   80      $  6,730
    Hershey Foods Corp.                                                      230        10,494
    McCormick & Co., Inc.                                                    230         5,434
    PepsiCo, Inc.                                                            190         6,246
                                                                                      --------
                                                                                      $ 28,904
- ----------------------------------------------------------------------------------------------
  Forest and Paper Products - 1.0%
    Kimberly-Clark Corp.                                                      60      $  6,360
- ----------------------------------------------------------------------------------------------
  Insurance - 7.0%
    Allstate Corp.                                                           140      $  8,872
    CIGNA Corp.                                                               40         6,115
    ITT Hartford Group, Inc.                                                 120         9,000
    MBIA, Inc.                                                                90         8,786
    Progressive Corp. - Ohio                                                  80         5,290
    Transamerica Corp.                                                        70         6,134
                                                                                      --------
                                                                                      $ 44,197
- ----------------------------------------------------------------------------------------------
  Medical and Health Products - 11.0%
    American Home Products Corp.                                             120      $  7,680
    Bristol-Myers Squibb Co.                                                 120        15,660
    Johnson & Johnson                                                        220        12,678
    Lilly (Eli) & Co.                                                         80         6,990
    Merck & Co., Inc.                                                        100         9,200
    Pfizer, Inc.                                                             130        11,911
    Rhone-Poulenc Rorer, Inc.                                                 70         4,970
                                                                                      --------
                                                                                      $ 69,089
- ----------------------------------------------------------------------------------------------
  Medical and Health Technology and Services - 2.3%
    Cardinal Health, Inc.                                                    100      $  6,150
    United Healthcare Corp.                                                  160         7,980
                                                                                      --------
                                                                                      $ 14,130
- ----------------------------------------------------------------------------------------------
  Oil Services - 0.8%
    Schlumberger Ltd.                                                         50      $  5,031
- ----------------------------------------------------------------------------------------------
  Oils - 6.4%
    Chevron Corp.                                                             50      $  3,225
    Exxon Corp.                                                              110        10,986
    Mobil Corp.                                                               70         8,592
    Phillips Petroleum Co.                                                   140         5,793
    Texaco, Inc.                                                              60         5,932
    Union Pacific Resources Group, Inc.                                      220         5,363
                                                                                      --------
                                                                                      $ 39,891
- ----------------------------------------------------------------------------------------------
  Railroads - 1.3%
    Burlington Northern Santa Fe Railway Co.                                 100      $  8,325
- ----------------------------------------------------------------------------------------------
  Restaurants and Lodging - 1.0%
    HFS, Inc.*                                                                90      $  6,165
- ----------------------------------------------------------------------------------------------
  Stores - 2.6%
    Rite-Aid Corp.                                                           240      $ 10,110
    Staples, Inc.*                                                           300         6,488
                                                                                      --------
                                                                                      $ 16,598
- ----------------------------------------------------------------------------------------------
  Supermarkets - 2.5%
    Kroger Co.*                                                              120      $  6,360
    Safeway, Inc.*                                                           200         9,625
                                                                                      --------
                                                                                      $ 15,985
- ----------------------------------------------------------------------------------------------
  Utilities - Electric - 4.2%
    CMS Energy Corp.                                                         160      $  5,240
    GPU, Inc.                                                                160         5,600
    Illinova Corp.                                                           200         5,000
    Pinnacle West Capital Corp.                                              170         5,313
    Public Service Co. of New Mexico*                                        300         5,512
                                                                                      --------
                                                                                      $ 26,665
- ----------------------------------------------------------------------------------------------
  Utilities - Gas - 1.7%
    Pacific Enterprises                                                      180      $  5,490
    PanEnergy Corp.                                                          120         5,115
                                                                                      --------
                                                                                      $ 10,605
- ----------------------------------------------------------------------------------------------
  Utilities - Telephone - 2.0%
    GTE Corp.                                                                130      $  6,078
    SBC Communications, Inc.                                                 110         6,325
                                                                                      --------
                                                                                      $ 12,403
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                     $611,531
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 2.3%
  Sweden - 0.9%
    Astra AB, Free Shares, "B" ADR (Pharmaceuticals)                         120      $  5,609
- ----------------------------------------------------------------------------------------------
  United Kingdom - 1.4%
    British Petroleum PLC, ADR (Oils)                                         65      $  8,604
- ----------------------------------------------------------------------------------------------
Total Foreign Stocks                                                                  $ 14,213
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $602,664)                                              $625,744
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $602,664)                                         $625,744
Other Assets, Less Liabilities - 0.4%                                                    2,371
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                                   $628,115
- ----------------------------------------------------------------------------------------------
*Non-income producing security.
</TABLE>

See notes to financial statements
<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS CONVERTIBLE SECURITIES FUND
Stocks - 13.6%
- ----------------------------------------------------------------------------------------------
Issuer                                                                    Shares         Value
- ----------------------------------------------------------------------------------------------
<S>                                                                          <C>      <C>     
U.S. Stocks - 12.7%
  Aerospace - 0.7%
    United Technologies Corp.                                                 50      $  3,763
- ----------------------------------------------------------------------------------------------
  Building - 0.3%
    Newport News Shipbuilding, Inc.                                          100      $  1,550
- ----------------------------------------------------------------------------------------------
  Consumer Goods and Services - 1.1%
    Colgate-Palmolive Co.                                                     30      $  3,105
    Gillette Co.                                                              35         2,769
                                                                                      --------
                                                                                      $  5,874
- ----------------------------------------------------------------------------------------------
  Electrical Equipment - 0.4%
    General Electric Co.                                                      20      $  2,058
- ----------------------------------------------------------------------------------------------
  Electronics - 0.9%
    Intel Corp.                                                               10      $  1,419
    Sony Corp.                                                                50         3,600
                                                                                      --------
                                                                                      $  5,019
- ----------------------------------------------------------------------------------------------
  Financial Institutions - 2.2%
    Liberty Property                                                         100      $  2,375
    Merrill Lynch & Co., Inc.                                                250         9,594
                                                                                      --------
                                                                                      $ 11,969
- ----------------------------------------------------------------------------------------------
  Insurance - 0.2%
    Providian Corp.                                                           25      $  1,397
- ----------------------------------------------------------------------------------------------
  Medical and Health Products - 1.3%
    Baxter International, Inc.                                                25      $  1,150
    Bristol-Myers Squibb Co.                                                  25         3,262
    Pharmacia & Upjohn, Inc.                                                  75         2,766
                                                                                      --------
                                                                                      $  7,178
- ----------------------------------------------------------------------------------------------
  Medical and Health Technology and Services - 0.3%
    St. Jude Medical, Inc.                                                    50      $  1,975
- ----------------------------------------------------------------------------------------------
  Oil Services - 0.3%
    Diamond Offshore Drilling, Inc.*                                          25      $  1,475
- ----------------------------------------------------------------------------------------------
  Oils - 0.6%
    Devon Energy Corp.                                                       100      $  3,125
- ----------------------------------------------------------------------------------------------
  Pollution Control - 0.9%
    United States Filter Corp.*                                              150      $  5,250
- ----------------------------------------------------------------------------------------------
  Restaurants and Lodging - 1.1%
    Hilton Hotels Corp.                                                      100      $  2,512
    Prime Hospitality Corp.*                                                 100         1,650
    Wendys International, Inc.                                               100         2,075
                                                                                      --------
                                                                                      $  6,237
- ----------------------------------------------------------------------------------------------
  Special Products and Services - 0.7%
    Stanley Works                                                            100      $  3,825
- ----------------------------------------------------------------------------------------------
  Stores - 0.5%
    Home Depot, Inc.                                                          50      $  2,725
- ----------------------------------------------------------------------------------------------
  Telecommunications - 1.2%
    Cincinnati Bell, Inc.                                                     25      $  1,550
    Lucent Technologies, Inc.                                                100         5,387
                                                                                      --------
                                                                                      $  6,937
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                     $ 70,357
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 0.9%
  Portugal - 0.3%
    Banco Totta E Acores (Financial Institutions)                            100      $  1,488
- ----------------------------------------------------------------------------------------------
  Switzerland - 0.6%
    Novartis AG (Pharmaceuticals)*                                             3      $  3,430
- ----------------------------------------------------------------------------------------------
Total Foreign Stocks                                                                  $  4,918
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $75,567)                                               $ 75,275
- ----------------------------------------------------------------------------------------------

Warrant
- ----------------------------------------------------------------------------------------------
  Ciba Specialty Chemicals AG* (Identified Cost, $0)                           3      $    190
- ----------------------------------------------------------------------------------------------

<CAPTION>
Convertible Bonds - 30.9%
- ----------------------------------------------------------------------------------------------
                                                                Principal Amount
                                                                   (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                        <C>        <C>     
Aerospace - 1.2%
  Hexcel Corp., 7s, 2003                                                   $   5      $  6,931
- ----------------------------------------------------------------------------------------------
Apparel and Textiles - 1.8%
  Nine West Group, Inc., 5.5s, 2003##                                      $  10      $ 10,050
- ----------------------------------------------------------------------------------------------
Building - 1.9%
  Continental Homes Holding Corp., 6.875s, 2002                            $  10      $ 10,738
- ----------------------------------------------------------------------------------------------
Business Machines - 0.9%
  HMT Technology Corp., 5.75s, 2004*##                                     $   5      $  5,138
- ----------------------------------------------------------------------------------------------
Business Services - 1.6%
  Protection One Alarm Monitoring, 6.75s, 2003                             $   9      $  8,606
- ----------------------------------------------------------------------------------------------
Computer Software - Systems - 5.1%
  Adaptec, Inc., 4.75s, 2004##                                             $   8      $  8,000
  Apple Computer, Inc., 6s, 2001##                                            10         8,475
  Baan Co. NV, 4.5s, 2001##                                                   10        11,825
                                                                                      --------
                                                                                      $ 28,300
- ----------------------------------------------------------------------------------------------
Electronics - 2.0%
  Xilinx, Inc., 5.25s, 2002##                                              $  10      $ 10,975
- ----------------------------------------------------------------------------------------------
Medical and Health Products - 1.0%
  North American Vaccine, Inc., 6.5s, 2003##                               $   5      $  5,050
- ----------------------------------------------------------------------------------------------
Medical and Health Technology and Services - 3.2%
  FPA Med Management, Inc., 6.5s, 2001##                                   $   5      $  5,537
  Healthsource, Inc., 5s, 2003                                                 2         1,960
  Vivra, Inc., 5s, 2001                                                       10        10,325
                                                                                      --------
                                                                                      $ 17,822
- ----------------------------------------------------------------------------------------------
Oil Services - 0.9%
  Diamond Offshore Drilling, Inc., 3.75s, 2007                             $   5      $  4,863
- ----------------------------------------------------------------------------------------------
Pollution Control - 4.0%
  Sanifill, Inc., 5s, 2006                                                 $   5      $  6,994
  United States Filter Corp., 6s, 2005                                         5         9,775
  USA Waste Services, Inc., 4s, 2002                                           5         5,212
                                                                                      --------
                                                                                      $ 21,981
- ----------------------------------------------------------------------------------------------
Real Estate - 0.5%
  AC International Finance Ltd., 0.5s, 2002##                              $   3      $  3,034
- ----------------------------------------------------------------------------------------------
Restaurants and Lodging - 0.9%
  Hilton Hotels Corp., 5s, 2006                                            $   5      $  5,094
- ----------------------------------------------------------------------------------------------
Special Products and Services - 1.7%
  Corporate Express, Inc., 4.5s, 2000                                      $  10      $  9,300
- ----------------------------------------------------------------------------------------------
Stores - 4.2%
  Home Depot, Inc., 3.25s, 2001                                            $   5      $  5,037
  Office Depot, Inc., 0s, 2008                                                 5         2,950
  Saks Holdings, Inc., 5.5s, 2006                                             15        15,169
                                                                                      --------
                                                                                      $ 23,156
- ----------------------------------------------------------------------------------------------
Total Convertible Bonds (Identified Cost, $166,571)                                   $171,038
- ----------------------------------------------------------------------------------------------

<CAPTION>
Convertible Preferred Stocks - 54.6%
- ----------------------------------------------------------------------------------------------
                                                                          Shares
- ----------------------------------------------------------------------------------------------
<S>                                                                          <C>      <C>     
Aerospace - 0.9%
  Loral Space & Communications Corp., 6s, 2006##                             100      $  5,150
- ----------------------------------------------------------------------------------------------
Business Services - 1.7%
  Ikon Office Solutions, Inc., $5.04, 1998                                   100      $  9,350
- ----------------------------------------------------------------------------------------------
Computer Software - Systems - 0.5%
  Wang Labs, 6.5s, 2049##                                                     50      $  2,631
- ----------------------------------------------------------------------------------------------
Consumer Goods and Services - 1.1%
  Corning - Delaware LP, 6s, 2049                                            100      $  6,238
- ----------------------------------------------------------------------------------------------
Entertainment - 5.0%
  American Radio Systems Corp., 7s, 2049##                                   325      $ 16,575
  Golden Books Financing Trust, 8.75s, 2016##                                200        10,150
  Royal Caribbean Cruises Ltd., 7.25s, 2049                                   20         1,097
                                                                                      --------
                                                                                      $ 27,822
- ----------------------------------------------------------------------------------------------
Financial Institutions - 15.7%
  Advanta Corp., Depository Shares                                            50      $  1,962
  Finova Finance Trust, 5.5s, 2016                                           300        17,325
  Greenfield Capital Trust, 6s, 2016                                         250        10,500
  Insignia Financing, "I", 6.5s, 2016##                                      200        10,050
  Jefferson-Pilot Corp., NationsBank (ACES), 2000                            100        10,775
  Merrill Lynch, STRYPES, 6.5s, 1998                                         150        10,275
  Owens-Corning Capital LLC, 6.5s, 2049##                                    275        15,400
  Tosco Financing Trust, 5.75s##                                             200        10,675
                                                                                      --------
                                                                                      $ 86,962
- ----------------------------------------------------------------------------------------------
Food and Beverages - 3.6%
  Dole Food, TRACES, 7s, 1999                                                525      $ 20,081
- ----------------------------------------------------------------------------------------------
Forest and Paper Products - 1.7%
  International Paper Capital Trust, 5.25s, 2025                             200      $  9,400
- ----------------------------------------------------------------------------------------------
Insurance - 4.5%
  Conseco, Inc., 7s, 2000                                                     75      $ 10,462
  Frontier Financing Trust, 6.25s, 2026##                                    100         5,550
  SunAmerica, Inc., PERCS                                                    150         6,319
  SunAmerica, Inc., $3.10, 1998                                               25         2,528
                                                                                      --------
                                                                                      $ 24,859
- ----------------------------------------------------------------------------------------------
Medical and Health Technology and Services - 1.0%
  McKesson Financing Trust, $2.50, 2027##                                    100      $  5,288
- ----------------------------------------------------------------------------------------------
Metals and Minerals - 1.8%
  Timet Capital Trust, "I", 6.625s, 2026##                                   200      $  9,700
- ----------------------------------------------------------------------------------------------
Oils - 0.5%
  Atlantic Richfield Co., LYONDELL, 9.01%, 1997                              120      $  2,745
- ----------------------------------------------------------------------------------------------
Pollution Control - 3.5%
  Browning-Ferris Industries, Inc., ACES, 7.25%                              600      $ 19,275
- ----------------------------------------------------------------------------------------------
Restaurants and Lodging - 4.0%
  Hilton Hotels Corp., 8s, 1999                                              100      $  2,375
  Host Marriott Financial Trust, 6.75s, 2026##                               300        17,325
  Wendys Financial, "I", 5s, 2026                                             50         2,600
                                                                                      --------
                                                                                      $ 22,300
- ----------------------------------------------------------------------------------------------
Steel - 1.9%
  Alaska Steel Holding Corp., 7s                                             200      $  6,575
  USX Corp., 6.75s, 2000                                                     200         3,750
                                                                                      --------
                                                                                      $ 10,325
- ----------------------------------------------------------------------------------------------
Stores - 1.5%
  Ann Taylor Finance Trust, $4.25, 8.5s, 2016##                               50      $  2,950
  K-Mart Financing, "I", 7.75%, 2016                                         100         5,475
                                                                                      --------
                                                                                      $  8,425
- ----------------------------------------------------------------------------------------------
Utilities - Gas - 0.9%
  Enron Corp., 6.25s                                                         250      $  5,219
- ----------------------------------------------------------------------------------------------
Utilities - Telephone - 4.8%
  Salomon, Inc., DECS (Cincinnati Bell, Inc.), 7.625s, 1999                  500      $ 16,000
  Salomon, Inc., DECS (Cincinnati Bell, Inc.), 6.25s, 2001                   175        10,719
                                                                                      --------
                                                                                      $ 26,719
- ----------------------------------------------------------------------------------------------
Total Convertible Preferred Stocks (Identified Cost, $299,380)                        $302,489
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $541,518)                                         $548,992

Short Sells - (0.6)%
- ----------------------------------------------------------------------------------------------
  Apple Computer* (Proceeds, $(3,468))                                     (190)     $  (3,088)
- ----------------------------------------------------------------------------------------------

Other Assets, Less Liabilities - 1.5%                                                $   8,282
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                                  $554,186
- ----------------------------------------------------------------------------------------------
 *Non-income producing security.
##SEC Rule 144A Restriction.
</TABLE>

See notes to financial statements
<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS NEW DISCOVERY FUND
Stocks - 92.0%
- ----------------------------------------------------------------------------------------------
Issuer                                                                  Shares           Value
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
U.S. Stocks - 91.6%
  Advertising - 0.2%
    Universal Outdoor Holdings, Inc.*                                      100      $    2,700
    VDI Media                                                              200           1,400
                                                                                    ----------
                                                                                    $    4,100
- ----------------------------------------------------------------------------------------------
  Agricultural Products - 0.5%
    AGCO Corp.                                                             300      $    8,513
- ----------------------------------------------------------------------------------------------
  Banks and Credit Companies - 0.3%
    TCF Financial Corp.                                                    100      $    4,538
- ----------------------------------------------------------------------------------------------
  Building - 1.1%
    Newport News Shipbuilding, Inc.                                      1,200      $   18,600
- ----------------------------------------------------------------------------------------------
  Business Machines - 4.9%
    Affiliated Computer Services, Inc.                                   4,200      $   86,625
- ----------------------------------------------------------------------------------------------
  Business Services - 12.8%
    AccuStaff, Inc.*                                                       800      $   16,600
    Administaff, Inc.*                                                     100           2,388
    ADT Ltd.*                                                            1,200          26,100
    America Online, Inc.*                                                  100           3,750
    Bisys Group, Inc.*                                                     300           9,375
    Ceridian Corp.*                                                        150           5,869
    Claremont Technology Group, Inc.*                                      500          10,562
    Computer Sciences Corp.                                                100           6,750
    Data Processing Corp.*                                               1,000          19,625
    DST Systems, Inc.*                                                     550          18,081
    Fine Host Corp.*                                                       600          15,750
    Fiserv, Inc.*                                                          550          18,012
    Interim Services, Inc.*                                                500          18,875
    May and Speh, Inc.*                                                  1,000           9,000
    Moneygram Payment Systems, Inc.*                                       800          10,400
    PMT Services, Inc.*                                                    899          11,575
    Sabre Group Holding, Inc.*                                             500          14,125
    Technology Solutions Co.                                               200           5,925
    Walsh International, Inc.*                                             300           2,513
                                                                                    ----------
                                                                                    $  225,275
- ----------------------------------------------------------------------------------------------
  Chemicals - 1.3%
    Betzdearborn, Inc.                                                     350      $   22,706
- ----------------------------------------------------------------------------------------------
  Computer Software - Personal Computers - 1.7%
    Apex PC Solutions, Inc.*                                             1,100      $   10,175
    Spectrum Holobyte, Inc.*                                               800           6,600
    TDK Corp.                                                              200          13,500
                                                                                    ----------
                                                                                    $   30,275
- ----------------------------------------------------------------------------------------------
  Computer Software - Systems - 16.6%
    Acxiom Corp.*                                                          200      $    3,050
    Adobe Systems, Inc.                                                    400          14,600
    American Business Information, Inc.*                                   500           9,625
    BMC Software, Inc.*                                                    200           8,562
    Cadence Design Systems, Inc.*                                          600          22,125
    Computer Associates International, Inc.                                400          17,400
    Compuware Corp.                                                        400          24,900
    Control Data Systems, Inc.*                                          1,050          15,750
    Cooper & Chyan Technology, Inc.*                                       400          12,275
    Intelligroup, Inc.*                                                  2,400          30,600
    Metromail Corp.*                                                       300           5,213
    Premier Research Worldwide Ltd.*                                       100           2,213
    Pure Atria Corp.*                                                      900          17,269
    Quickturn Design Systems, Inc.*                                        500           7,969
    Sierra Semi Conductor Corp.*                                           800          12,800
    Simulation Sciences, Inc.*                                           1,100          14,850
    Sterling Software, Inc.*                                               500          14,312
    Synopsys, Inc.*                                                      1,000          35,687
    USCS International, Inc.*                                              900          18,675
    Xionics Document Technologies *                                        250           4,250
                                                                                    ----------
                                                                                    $  292,125
- ----------------------------------------------------------------------------------------------
  Construction Services - 0.6%
    Martin Marietta Materials, Inc.                                        400      $   10,550
- ----------------------------------------------------------------------------------------------
  Consumer Goods and Services - 1.1%
    Alternative Resources Corp.*                                           700      $   10,762
    Meta Group, Inc.*                                                      300           7,125
    United States Rentals, Inc.*                                           100           1,900
                                                                                    ----------
                                                                                    $   19,787
- ----------------------------------------------------------------------------------------------
  Electrical Equipment - 0.5%
    Belden, Inc.                                                           250      $    8,906
- ----------------------------------------------------------------------------------------------
  Electronics - 6.4%
    Actel Corp.*                                                           400      $    7,800
    Analog Devices, Inc.*                                                1,500          34,875
    Atmel Corp.                                                            250           9,344
    Burr Brown                                                             250           8,187
    CFM Technologies, Inc.*                                                100           4,000
    GaSonics International Corp.*                                          450           7,538
    Kulicke & Soffa Industries, Inc.*                                      300           7,950
    Lattice Semiconductor Corp.*                                           200           9,550
    Microchip Technology, Inc.*                                            200           7,475
    Photronic, Inc.*                                                       200           6,900
    Ultratech Stepper, Inc.*                                               300           7,837
                                                                                    ----------
                                                                                    $  111,456
- ----------------------------------------------------------------------------------------------
  Entertainment - 4.1%
    Clear Channel Communications, Inc.*                                    400      $   19,150
    Cox Radio, Inc.*                                                       650          12,431
    Emmis Broadcasting Corp.*                                              250           8,625
    EZ Communications, Inc.*                                               300          12,675
    Jacor Communications, Inc., "A"*                                       400          11,775
    Midway Games, Inc.*                                                    500           7,813
                                                                                    ----------
                                                                                    $   72,469
- ----------------------------------------------------------------------------------------------
  Financial Institutions - 6.8%
    BA Merchants Services, Inc.*                                           200      $    3,100
    Financial Federal Corp.*                                               400           7,550
    Franklin Resources, Inc.                                               600          35,100
    Kilroy Realty Corp.*                                                   100           2,625
    PHH Corp.                                                            1,250          59,844
    Quick & Reilly Group, Inc.                                             300          10,500
                                                                                    ----------
                                                                                    $  118,719
- ----------------------------------------------------------------------------------------------
  Food and Beverage Products - 2.7%
    Earthgrains Co.                                                        400      $   21,900
    Smith's Food & Drug Centers, Inc.                                      650          21,369
    Suiza Foods Corp.*                                                     200           5,025
                                                                                    ----------
                                                                                    $   48,294
- ----------------------------------------------------------------------------------------------
  Insurance - 3.1%
    Compdent Corp.*                                                        550      $   16,569
    PennCorp Financial Group, Inc.                                         200           7,000
    Reliastar Financial Corp.                                              350          21,700
    Security Connecticut Corp.                                             200           9,300
                                                                                    ----------
                                                                                    $   54,569
- ----------------------------------------------------------------------------------------------
  Machinery - 1.0%
    Greenfield Industries, Inc.                                            500      $   10,937
    Special Devices, Inc.*                                                 400           7,200
                                                                                    ----------
                                                                                    $   18,137
- ----------------------------------------------------------------------------------------------
  Medical and Health Products - 1.0%
    Mentor Corp.                                                           300      $    7,463
    Zoll Medical Corp.*                                                    900           9,675
                                                                                    ----------
                                                                                    $   17,138
- ----------------------------------------------------------------------------------------------
  Medical and Health Technology and Services - 9.0%
    Apache Med Systems, Inc.*                                            1,700      $   11,475
    HCIA, Inc.*                                                            600          20,550
    Health Management Associates, Inc.                                     500          13,250
    HealthSource, Inc.*                                                    200           4,175
    HealthSouth Corp.*                                                     400          16,100
    Horizon/CMS Healthcare Corp.*                                        1,300          21,287
    IDX Systems Corp.*                                                     300           9,450
    Lincare Holdings, Inc.                                                 200           8,625
    Physician Sales and Service, Inc.*                                     100           1,525
    Quorum Health Group, Inc.*                                             100           3,138
    Safeguard Health Enterprises, Inc.                                     400           5,900
    St. Jude Medical, Inc.                                                 300          11,850
    Trigon Healthcare, Inc.*                                               100           1,788
    Vivra, Inc.*                                                         1,000          29,750
                                                                                    ----------
                                                                                    $  158,863
- ----------------------------------------------------------------------------------------------
  Metals and Minerals - 0.7%
    Titanium Metals Corp.*                                                 150      $    4,106
    Transaction System Architects, Inc.                                    300           7,800
                                                                                    ----------
                                                                                    $   11,906
- ----------------------------------------------------------------------------------------------
  Oil Services - 2.1%
    Camco International, Inc.                                              200      $    7,725
    Cooper Cameron Corp.*                                                  120           7,860
    Global Industries, Inc.*                                               400           7,300
    National Oilwell, Inc.*                                                150           4,612
    Weatherford Enterra, Inc.*                                             300           9,000
                                                                                    ----------
                                                                                    $   36,497
- ----------------------------------------------------------------------------------------------
  Pollution Control - 0.6%
    USA Waste Services, Inc.*                                              300      $   10,800
- ----------------------------------------------------------------------------------------------
  Restaurants and Lodging - 4.9%
    Applebee's International, Inc.                                         100      $    2,525
    Coldwater Creek, Inc.*                                                 500           9,187
    Doubletree Corp.*                                                      500          20,875
    HFS, Inc.*                                                             400          27,400
    Prime Hospitality Corp.*                                               600           9,900
    Promus Hotel Corp.*                                                    100           3,538
    Renaissance Hotel Group NV*                                            400          11,850
                                                                                    ----------
                                                                                    $   85,275
- ----------------------------------------------------------------------------------------------
  Stores - 4.1%
    Ann Taylor Stores Corp.*                                               300      $    6,000
    Gymboree Corp.                                                         350           8,619
    Hollywood Entertainment Corp.*                                         900          21,600
    Linens N'Things, Inc.*                                                 500          10,750
    Micro Warehouse, Inc.*                                                 100           1,437
    Petco Animal Supplies, Inc.*                                           300           8,287
    Rite-Aid Corp.                                                         350          14,744
                                                                                    ----------
                                                                                    $   71,437
- ----------------------------------------------------------------------------------------------
  Telecommunications - 3.1%
    Ascend Communications, Inc.*                                           750      $   39,187
    Cable Design Technologies Corp.                                        300           7,950
    Glenayre Technologies, Inc.*                                           500           6,625
                                                                                    ----------
                                                                                    $   53,762
- ----------------------------------------------------------------------------------------------
  Utilities - Gas - 0.4%
    Energy Ventures, Inc.                                                  150      $    7,650
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                   $1,608,972
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 0.4%
  United Kingdom - 0.4%
    SELECT Software Tools, ADR (Computer Software - Systems)*              500      $    7,000
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $1,621,305)                                          $1,615,972
- ----------------------------------------------------------------------------------------------

<CAPTION>
Short-Term Obligation - 3.7%
- ----------------------------------------------------------------------------------------------
                                                              Principal Amount
                                                                 (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                       <C>       <C>       
  Federal Home Loan Bank, due 3/03/97, at Amortized Cost                  $ 65      $   64,981
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $1,686,286)                                    $ 1,680,953

Other Assets, Less Liabilities - 4.3%                                                   75,393
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                              $   1,756,346
- ----------------------------------------------------------------------------------------------
*Non-income producing security.
</TABLE>

See notes to financial statements
<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS RESEARCH INTERNATIONAL FUND
Stocks - 94.6%
- ----------------------------------------------------------------------------------------------
Issuer                                                                  Shares           Value
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
U.S. Stocks - 5.7%
  Agricultural Products - 0.9%
    AGCO Corp.                                                             620      $   17,592
- ----------------------------------------------------------------------------------------------
  Computer Software - Personal Computers - 2.2%
    TDK Corp.                                                              640      $   43,200
- ----------------------------------------------------------------------------------------------
  Medical and Health Products - 1.5%
    Pharmacia & Upjohn, Inc.                                               555      $   20,466
    Rhone-Poulenc Rorer, Inc.                                              119           8,449
                                                                                    ----------
                                                                                    $   28,915
- ----------------------------------------------------------------------------------------------
  Utilities - Telephone - 1.1%
    MCI Communications Corp.                                               625      $   22,344
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                   $  112,051
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 88.9%
  Australia - 1.3%
    Q.B.E. Insurance Group Ltd. (Insurance)                              5,042      $   25,269
- ----------------------------------------------------------------------------------------------
  Brazil - 3.7%
    ABB AB (Aerospace)                                                     281      $   31,393
    Jusco Co. (Real Estate Investment Trusts)                            1,000          28,353
    Telecomunicacoes Brasileiras SA, ADR
      (Telecommunications)                                                 142          13,774
                                                                                    ----------
                                                                                    $   73,520
- ----------------------------------------------------------------------------------------------
  Canada - 1.0%
    Canadian National Railway Co. (Railroads)                              533      $   19,388
- ----------------------------------------------------------------------------------------------
  Chile - 0.7%
    Chilectra SA, ADR (Utilities - Electric)                               206      $   13,338
- ----------------------------------------------------------------------------------------------
  Finland - 2.0%
    Huhtamaki Oy Group (Food Products)                                     740      $   34,752
    TT Tieto Oy (Computer Software - Systems)                               50           4,288
                                                                                    ----------
                                                                                    $   39,040
- ----------------------------------------------------------------------------------------------
  France - 6.2%
    Assurance Generale de France (Agricultural
      Products)##                                                          196      $    6,904
    Elf Aquitaine SA (Oils)                                                253          24,224
    Michelin (C.G.D.E.), "B" (Tire and Rubber)                             226          14,167
    Rhone-Poulenc SA (Pharmaceuticals)*                                    733          25,755
    TV Francaise (Entertainment)                                           120          11,131
    TOTAL SA (Oils)*                                                       220          17,567
    Union des Assurances Federales SA (Insurance)                          180          21,599
                                                                                    ----------
                                                                                    $  121,347
- ----------------------------------------------------------------------------------------------
  Germany - 2.4%
    Adidas AG (Stores)                                                     366      $   35,038
    Hoechst AG (Chemicals)                                                 288          12,223
                                                                                    ----------
                                                                                    $   47,261
- ----------------------------------------------------------------------------------------------
  Greece - 1.1%
    Hellenic Telecommunication Organization SA
      (Telecommunications)                                                 460      $   10,086
    Papastratos Cigarettes SA (Consumer Goods and Services)                620          12,305
                                                                                    ----------
                                                                                    $   22,391
- ----------------------------------------------------------------------------------------------
  Hong Kong - 9.5%
    Asia Satellite Telecommunications Holdings Ltd.
      (Telecommunications)*                                              9,000      $   23,712
    Dah Sing Financial Group (Banks and Credit
      Companies)                                                         3,800          15,901
    Giordano International Ltd. (Retail)                                 8,000           5,683
    Great Eagle Holdings Co. (Food and Beverage  Products)               7,000          26,262
    Hong Kong Electric Holdings Ltd. (Utilities - Electric)              7,000          24,228
    Hysan Development Co. (Real Estate)                                  4,000          13,793
    Li & Fung Ltd. (Stores)                                             36,000          29,291
    Liu Chong Hing Bank (Banks and Credit Companies)                     4,000           7,594
    Peregrine Investment Holdings (Finance)                              3,000           5,482
    Wharf Holdings Ltd. (Real Estate)                                    5,000          22,214
    Wing Hang Bank Ltd. (Banks and Credit Companies)                     2,500          11,365
                                                                                    ----------
                                                                                    $  185,525
- ----------------------------------------------------------------------------------------------
  Indonesia - 0.7%
    Semen Gresik (Building Materials)                                    4,500      $   13,288
- ----------------------------------------------------------------------------------------------
  Ireland - 1.1%
    Allied Irish Banks (Banks and Credit Companies)                      3,026      $   21,709
- ----------------------------------------------------------------------------------------------
  Italy - 3.2%
    Gucci Group NV (Apparel and Textiles)                                  284      $   18,354
    Industrie Natuzzi S.p.A., ADR (Consumer Goods and
      Services)                                                            824          16,995
    Instituto Nazionale delle Assicurazioni (Insurance)                  7,865          10,279
    Telecom Italia S.p.A. (Telecommunications)                          11,645          17,801
                                                                                    ----------
                                                                                    $   63,429
- ----------------------------------------------------------------------------------------------
  Japan - 16.8%
    Bank of Tokyo - Mitsubishi (Banks and Credit
      Companies)                                                         1,000      $   16,415
    Bridgestone Corp. (Tire and Rubber)                                  1,000          17,908
    Canon, Inc. (Office Equipment)                                       2,000          41,784
    DDI Corp. (Telecommunications)                                           3          18,082
    East Japan Railway Co. (Railroads)                                       2           8,523
    Hirose Electric Co. (Electronics)                                      100           5,605
    Keyence Corp. (Electronics)                                            100          12,187
    Kinki Coca-Cola Bottling Co. (Beverages)                             1,000          12,021
    Kirin Beverage Corp. (Beverages)                                     2,000          27,193
    Matsushita Electric Industrial Co. (Electrical Equipment)            1,000          15,420
    Nippon Telephone & Telegraph Co. (Utilities -
      Telecommunications)                                                    2          14,243
    Nitto Denko Corp. (Industrials)                                      2,000          26,695
    Omron Corp. (Electronics)                                            1,000          15,752
    Osaka Sanso Kogyo Ltd. (Chemicals)                                   2,000           5,372
    Sony Corp. (Electronics)                                               700          50,547
    Takeda Chemical Industries (Chemicals)                               1,000          20,063
    Ushio, Inc. (Electronics)                                            2,000          22,550
                                                                                    ----------
                                                                                    $  330,360
- ----------------------------------------------------------------------------------------------
  Malaysia - 0.4%
    Petronas Gas Berhad (Gas)##                                          2,000      $    7,292
- ----------------------------------------------------------------------------------------------
  Netherlands - 3.3%
    ASM Lithography Holding NV (Electronics)##                             290      $   19,321
    Ahrend Groep NV (Furniture and Home Appliances)                        240          13,609
    Royal Dutch Petroleum Co. (Oils)                                       126          21,841
    Stork NV (Machinery)                                                   270          11,081
                                                                                    ----------
                                                                                    $   65,852
- ----------------------------------------------------------------------------------------------
  Norway - 0.6%
    Orkla Asa (Consumer Goods and Services)                                149      $   11,938
- ----------------------------------------------------------------------------------------------
  Peru - 1.1%
    Telefonica del Peru SA, ADR (Utilities - Telephone)                  1,008      $   22,176
- ----------------------------------------------------------------------------------------------
  Philippines - 1.0%
    Alsons Cement Corp. (Building Materials)##                          39,500      $   10,213
    Ayala Corp. (Real Estate)                                            8,300           9,468
                                                                                    ----------
                                                                                    $   19,681
- ----------------------------------------------------------------------------------------------
  Portugal - 0.8%
    Banco Totta E Acores (Financial Institutions)                        1,075      $   15,995
- ----------------------------------------------------------------------------------------------
  Singapore - 2.5%
    City Developments Ltd. (Real Estate)                                 2,000      $   19,789
    Hong Leong Finance Ltd. (Finance)+                                   3,000          11,579
    Mandarin Oriental International Ltd. (Restaurants
      and Lodging)                                                      13,000          17,680
                                                                                    ----------
                                                                                    $   49,048
- ----------------------------------------------------------------------------------------------
  South Korea - 1.7%
    Korea Electric Power Corp., ADR (Utilities - Electric)                 598      $   10,764
    Korea Mobile Telecommunications, ADR
      (Telecommunications)*                                              1,781          22,040
                                                                                    ----------
                                                                                    $   32,804
- ----------------------------------------------------------------------------------------------
  Spain - 3.4%
    Acerinox SA (Iron and Steel)                                            61      $    8,484
    Cubiertas y Mzov SA (Engineering - Construction)                       181          17,818
    Repsol SA (Oils)                                                       590          22,450
    Telefonica de Espana (Utilities - Telephone)                           760          17,510
                                                                                    ----------
                                                                                    $   66,262
- ----------------------------------------------------------------------------------------------
  Sweden - 3.3%
    Astra AB (Pharmaceuticals)                                             475      $   22,770
    Nobel Biocare AB (Medical and Health Products)                         995          17,754
    Sparbanken Sverige AB (Banks and Credit Companies)                   1,211          23,865
                                                                                    ----------
                                                                                    $   64,389
- ----------------------------------------------------------------------------------------------
  Switzerland - 3.2%
    Kuoni Reisen Holdings AG (Transportation)                                4       $  10,526
    Logitech International (Electrical Equipment)                           81          13,788
    Nestle AG (Food and Beverage Products)                                   9           9,803
    Novartis AG (Pharmaceuticals)*                                          25          28,586
                                                                                    ----------
                                                                                    $   62,703
- ----------------------------------------------------------------------------------------------
  United Kingdom - 17.3%
    ASDA Group PLC (Retail)                                             17,701      $   32,236
    British Aerospace PLC (Aerospace)                                    1,696          35,265
    British Petroleum PLC (Oils)                                         2,012          22,308
    Capital Radio PLC (Broadcasting)                                       971           8,945
    Carlton Communications PLC (Broadcasting)                            1,200          10,214
    Grand Metropolitan (Food and Beverage Products)                      2,750          20,402
    Inchcape PLC (Automotive)                                            2,327          10,092
    Jarvis Hotels PLC (Restaurants and Lodging)+                        12,322          35,561
    Kwik-Fit Holdings PLC (Automotive)                                   8,744          32,221
    Lloyds TSB Group PLC (Banks and Credit Companies)                    2,030          16,880
    Pace Micro Technology (Electronics)                                  7,096          10,413
    PowerGen PLC (Utilities - Electric)                                  3,992          40,225
    Reuters Holdings PLC, ADR (Printing and Publishing)                    140           8,977
    Smith (W.H.) Group PLC (Retail)                                      1,445          10,720
    Storehouse PLC (Retail)                                              7,150          31,943
    Wimpey (Geo.) PLC (Construction Services)                            5,290          12,162
                                                                                    ----------
                                                                                    $  338,564
- ----------------------------------------------------------------------------------------------
  Venezuela - 0.6%
    Compania Anonima Nacional Telefonos de Venezuela, ADR
      (Telecommunications)*                                                369      $   11,716
- ----------------------------------------------------------------------------------------------
Total Foreign Stocks                                                                $1,744,285
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $1,898,775)                                          $1,856,336
- ----------------------------------------------------------------------------------------------

Warrant - 0.1%
- ----------------------------------------------------------------------------------------------
  Ciba Specialty Chemicals AG* (Identified Cost, $0)                        23        $  1,456
- ----------------------------------------------------------------------------------------------

Preferred Stocks - 2.7%
- ----------------------------------------------------------------------------------------------
Germany - 2.7%
  Sap AG (Computer Software - Systems)                                     148       $  22,853
  Henkel KGaA (Consumer Goods and Services)                                578          30,836
- ----------------------------------------------------------------------------------------------
Total Preferred Stocks (Identified Cost, $49,659)                                   $   53,689
- ----------------------------------------------------------------------------------------------

<CAPTION>
Short-Term Obligation - 8.4%
- ----------------------------------------------------------------------------------------------
                                                              Principal Amount
                                                                 (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
  Federal Home Loan Bank, due 3/03/97, at Amortized Cost                 $ 165      $  164,952
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $2,113,386)                                     $2,076,433
Other Assets, Less Liabilities - (5.8)%                                               (114,610)
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                                 $1,961,823
- ----------------------------------------------------------------------------------------------
 *Non-income producing security.
 +Restricted Security.
##SEC Rule 144A Restriction.
</TABLE>

See notes to financial statements
<PAGE>
PORTFOLIO OF INVESTMENTS (UNAUDITED) - February 28, 1997

<TABLE>
<CAPTION>
MFS SCIENCE AND TECHNOLOGY FUND
Stocks - 77.2%
- ----------------------------------------------------------------------------------------------
Issuer                                                                  Shares           Value
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
U.S. Stocks - 76.8%
  Advertising - 0.1%
    Universal Outdoor Holdings, Inc.*                                      100      $    2,700
- ----------------------------------------------------------------------------------------------
  Business Machines - 5.0%
    Affiliated Computer Services, Inc.*                                  3,000      $   61,875
    International Business Machines Corp.                                   20           2,875
    Sun Microsystems, Inc.*                                              1,320          40,755
                                                                                    ----------
                                                                                    $  105,505
- ----------------------------------------------------------------------------------------------
  Business Services - 6.7%
    AccuStaff, Inc.*                                                     1,980      $   41,085
    ADT Ltd.*                                                              940          20,445
    Claremont Technology Group, Inc.*                                      920          19,435
    CUC International, Inc.*                                             1,160          27,695
    Data Processing Corp.*                                                 500           9,813
    Ikon Office Solutions, Inc.                                            565          23,306
                                                                                    ----------
                                                                                    $  141,779
- ----------------------------------------------------------------------------------------------
  Computer Software - Personal Computers - 7.0%
    Activision, Inc.*                                                    2,100      $   28,087
    Dell Computer Corp.*                                                   230          16,359
    Electronic Arts, Inc.*                                                 710          22,188
    First Data Corp.                                                       780          28,567
    Microsoft Corp.*                                                       200          19,500
    Spectrum Holobyte, Inc.*                                             3,900          32,175
                                                                                    ----------
                                                                                    $  146,876
- ----------------------------------------------------------------------------------------------
  Computer Software - Services - 0.8%
    Ingram Micro, Inc.*                                                    750      $   17,062
- ----------------------------------------------------------------------------------------------
  Computer Software - Systems - 27.4%
    Adobe Systems, Inc.                                                    970      $   35,405
    BMC Software, Inc.*                                                  1,560          66,787
    Cadence Design Systems, Inc.*                                        1,760          64,900
    Compaq Computer Corp.*                                                 530          42,003
    Computer Associates International, Inc.                              1,905          82,867
    Compuware Corp.*                                                       930          57,893
    Cooper & Chyan Technology, Inc.*                                       905          27,772
    Oracle Systems Corp.*                                                1,590          62,408
    Peoplesoft, Inc.*                                                      310          12,361
    Pure Atria Corp.*                                                    1,900          36,456
    Silicon Graphics, Inc.*                                                330           7,961
    Sybase, Inc.*                                                          380           6,223
    Synopsys, Inc.*                                                      2,110          75,301
                                                                                    ----------
                                                                                    $  578,337
- ----------------------------------------------------------------------------------------------
  Consumer Goods and Services - 0.1%
    Silgan Holdings, Inc.*                                                 100      $    2,550
- ----------------------------------------------------------------------------------------------
  Electronics - 4.7%
    Atmel Corp.*                                                           440      $   16,445
    Intel Corp.                                                            515          73,066
    Xilinx, Inc.*                                                          200           9,025
                                                                                    ----------
                                                                                    $   98,536
- ----------------------------------------------------------------------------------------------
  Entertainment - 0.9%
    Midway Games, Inc.*                                                  1,160      $   18,125
- ----------------------------------------------------------------------------------------------

U.S. Stocks - continued
  Medical and Health Products - 2.7%
    Bristol-Myers Squibb Co.                                               260      $   33,930
    North American Vaccine, Inc.*                                          470          10,634
    Pharmacia & Upjohn, Inc.                                               340          12,537
                                                                                    ----------
                                                                                    $   57,101
- ----------------------------------------------------------------------------------------------
  Medical and Health Technology and Services - 8.1%
    HBO & Co.                                                              955      $   55,032
    Oxford Health Plans, Inc.*                                             370          20,627
    Pacificare Health Systems, Inc.*                                       250          20,937
    Trigon Healthcare, Inc.*                                               100           1,788
    United Healthcare Corp.                                              1,240          61,845
    Vivra, Inc.*                                                           350          10,413
                                                                                    ----------
                                                                                    $  170,642
- ----------------------------------------------------------------------------------------------
  Restaurants and Lodging - 0.4%
    Renaissance Hotel Group NV*                                            300      $    8,888
- ----------------------------------------------------------------------------------------------
  Stores - 1.2%
    Office Depot, Inc.*                                                    850      $   16,150
    Rite-Aid Corp.                                                         200           8,425
                                                                                    ----------
                                                                                    $   24,575
- ----------------------------------------------------------------------------------------------
  Telecommunications - 10.2%
    ADC Telecommunications, Inc.*                                          250      $    6,750
    Ascend Communications, Inc.*                                           815          42,584
    Cabletron Systems, Inc.*                                             1,760          52,800
    Cisco Systems, Inc.*                                                 1,305          72,590
    Lucent Technologies, Inc.                                              760          40,945
                                                                                    ----------
                                                                                    $  215,669
- ----------------------------------------------------------------------------------------------
  Utilities - Telephone - 1.5%
    MCI Communications Corp.                                               910      $   32,532
- ----------------------------------------------------------------------------------------------
Total U.S. Stocks                                                                   $1,620,877
- ----------------------------------------------------------------------------------------------
Foreign Stocks - 0.4%
  United Kingdom - 0.4%
  SELECT Software Tools, ADR (Computer Software - Systems)*                600      $    8,400
- ----------------------------------------------------------------------------------------------
Total Stocks (Identified Cost, $1,666,296)                                          $1,629,277
- ----------------------------------------------------------------------------------------------

Preferred Stock - 0.6%
- ----------------------------------------------------------------------------------------------
Germany - 0.6%
  Sap AG (Computer Software - Systems) (Identified Cost, $12,820)           85      $   13,125
- ----------------------------------------------------------------------------------------------

<CAPTION>
Short-Term Obligation - 24.7%
- ----------------------------------------------------------------------------------------------
                                                              Principal Amount
                                                                 (000 Omitted)
- ----------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>       
  Federal Home Loan Bank, due 3/03/97, at Amortized Cost                 $ 520      $  519,847
- ----------------------------------------------------------------------------------------------
Total Investments (Identified Cost, $2,198,963)                                     $2,162,249
Other Assets, Less Liabilities - (2.5)%                                                (51,833)
- ----------------------------------------------------------------------------------------------
Net Assets - 100.0%                                                                 $2,110,416
- ----------------------------------------------------------------------------------------------
*Non-income producing security.
</TABLE>
See notes to financial statements
<PAGE>

FINANCIAL STATEMENTS

Statements of Assets and Liabilities (Unaudited)
- --------------------------------------------------------------------------------
                                                                 
                                                 Core     Equity       Special
                                               Growth     Income Opportunities
February 28, 1997                                Fund       Fund          Fund
- --------------------------------------------------------------------------------
Assets:
  Investments, at value (identified cost,
    $1,757,850,
    $833,755 and $3,369,123,
    respectively)                          $1,829,531   $934,587   $3,445,331
  Cash                                            885      6,612          904
  Deposits with brokers for securities
    sold short                                --          --           66,341
  Receive for Fund shares sold                --           2,673      --
  Receivable for investments sold              44,957     11,311      139,730
  Interest and dividends receivable               827      2,520        2,171
  Deferred organization expenses                1,670      1,670        1,670
  Other assets                                --          --            4,362
                                           ----------   --------   ----------
      Total assets                         $1,877,870   $959,373   $3,660,509
                                           ----------   --------   ----------
Liabilities:
  Securities sold short, at value       
    (proceeds, $0, $0 and $66,341,
    respectively)                          $  --        $ --       $   69,525
  Payable for investments purchased            66,178      2,681      131,912
  Payable for Fund shares reacquired          --          --            4,293
  Accrued expenses and other liabilities        1,746      1,710      --
                                           ----------   --------   ----------
      Total liabilities                    $   67,924   $  4,391   $  205,730
                                           ----------   --------   ----------
Net assets                                 $1,809,946   $954,982   $3,454,779
                                           ==========   ========   ==========

Net assets consist of:
  Paid-in capital                          $1,631,814   $808,171   $3,181,500
  Unrealized appreciation on investments
    and translation of assets and
    liabilities in foreign currencies          71,676    100,832       72,046
  Accumulated undistributed net realized
    gain on investments and
    foreign currency transactions             108,021     44,051      194,802
  Accumulated undistributed net                      
    investment income (loss)
                                               (1,565)     1,928        6,431
                                           ----------   --------   ----------
      Total                                $1,809,946   $954,982   $3,454,779
                                           ==========   ========   ==========
Shares of beneficial interest
  outstanding:
  Class A                                      58,526     27,624      143,624
  Class I                                      75,010     46,379      154,087
                                           ----------   --------   ----------
      Total shares of beneficial interest
        outstanding                           133,536     74,003      297,711
                                           ==========   ========   ==========
Net assets:
  Class A                                  $  792,523   $356,622   $1,665,613
  Class I                                   1,017,423    598,360    1,789,166
                                           ----------   --------   ----------
      Total net assets                     $1,809,946   $954,982   $3,454,779
                                           ==========   ========   ==========

Class A shares:
  Net asset value and redemption price
    per share
    (net assets / shares of beneficial
    interest outstanding)                   $13.54      $12.91      $11.60
                                            ======      ======      ======

Class I shares:
  Net asset value and redemption price
    per share
    (net assets / shares of beneficial
    interest outstanding)                   $13.56      $12.90      $11.61
                                            ======      ======      ======

See notes to financial statements
<PAGE>

FINANCIAL STATEMENTS - continued
Statements of Assets and Liabilities (Unaudited) - continued
- --------------------------------------------------------------------------------
                                                      
                                                 Blue  Convertible          New
                                                 Chip   Securities    Discovery
February 28, 1997                                Fund         Fund         Fund
- --------------------------------------------------------------------------------
Assets:
  Investments, at value (identified cost,
    $602,664, $541,518 and
    $1,686,286, respectively)                $625,744     $548,992   $1,680,953
  Cash                                          5,991          311        4,923
  Deposits with brokers for securities                  
    sold short                                 --            3,468      --
  Receivable for Fund shares sold              --           --          --
  Receivable for investments sold              --            9,610      111,264
  Interest and dividends receivable             1,113        2,417       18,821
  Deferred organization expenses               --           --          --
  Other assets                                 --           --          --
                                             --------     --------   ----------
      Total assets                           $632,848     $564,798   $1,815,961
                                             --------     --------   ----------
Liabilities:                                            
  Securities sold short, at value                       
    (proceeds, $0, $3,468 and $0,                       
    respectively)                            $ --         $  3,088   $  --
  Payable for investments purchased             4,707       --           59,542
  Payable for Fund shares reacquired           --           --          --
  Accrued expenses and other liabilities           26        7,524           73
                                             --------     --------   ----------
      Total liabilities                      $  4,733     $ 10,612   $   59,615
                                             --------     --------   ----------
Net assets                                   $628,115     $554,186   $1,756,346
                                             ========     ========   ==========
                                                        
Net assets consist of:                                  
  Paid-in capital                            $603,679     $546,260   $1,742,008
  Unrealized appreciation (depreciation)                
    on investments and                                  
    translation of assets and liabilities               
    in foreign currencies                      23,080        7,854       (5,333)
  Accumulated undistributed net realized                
    gain (loss) on                                      
    investments and foreign currency                    
    transactions                                  476       (1,800)     (14,789)
  Accumulated undistributed net investment              
    income                                        880        1,872       34,460
                                             --------     --------   ----------
      Total                                  $628,115     $554,186   $1,756,346
                                             ========     ========   ==========
Shares of beneficial interest outstanding:              
  Class A                                      43,773       50,353       37,384
  Class I                                      16,448        4,271      136,603
                                             --------     --------   ----------
      Total shares of beneficial interest               
        outstanding                            60,221       54,624      173,987
                                             ========     ========   ==========
Net assets:                                             
  Class A                                    $456,567     $510,877   $  377,387
  Class I                                     171,548       43,309    1,378,959
                                             --------     --------   ----------
      Total net assets                       $628,115     $554,186   $1,756,346
                                             ========     ========   ==========
                                                        
Class A shares:                                         
  Net asset value and redemption price per              
    share                                               
    (net assets / shares of beneficial                  
    interest outstanding)                    $10.43       $10.15      $10.09
                                             ======       ======      ======
                                                        
Class I shares:                                         
  Net asset value and redemption price per              
    share                                               
    (net assets / shares of beneficial                  
    interest outstanding)                    $10.43       $10.14      $10.09
                                             ======       ======      ======
                                                       
See notes to financial statements
<PAGE>

FINANCIAL STATEMENTS - continued
Statements of Assets and Liabilities (Unaudited) - continued
- ----------------------------------------------------------------------------
                                                  Research    Science and
                                             International     Technology
February 28, 1997                                     Fund           Fund
- ----------------------------------------------------------------------------
Assets:
  Investments, at value (identified cost,
    $2,113,386 and $2,198,963, respectively)    $2,076,433     $2,162,249
  Cash                                               4,867          4,653
  Receivable for Fund shares sold                   --             --
  Receivable for investments sold                    5,455          8,267
  Interest and dividends receivable                  2,103         28,056
  Deferred organization expenses                    --             --
  Other assets                                      --                250
                                                ----------     ----------
      Total assets                              $2,088,858     $2,203,475
                                                ----------     ----------
Liabilities:
  Payable for investments purchased             $  126,955      $  92,981
  Payable for Fund shares reacquired                --             --
  Accrued expenses and other liabilities                80             78
                                                ----------     ----------
      Total liabilities                         $  127,035      $  93,059
                                                ----------     ----------
Net assets                                      $1,961,823     $2,110,416
                                                ==========     ==========

Net assets consist of:
  Paid-in capital                               $1,988,844     $2,101,702
  Unrealized depreciation on investments and
    translation of assets and
    liabilities in foreign currencies              (37,172)       (36,712)
  Accumulated undistributed net realized
    gain (loss) on investments and
    foreign currency transactions                    9,629        (43,675)
  Accumulated undistributed net investment
    income                                             522         89,101
                                                ----------     ----------
      Total                                     $1,961,823     $2,110,416
                                                ==========     ==========
Shares of beneficial interest outstanding:
  Class A                                          140,561         57,447
  Class I                                           58,601        151,769
                                                ----------     ----------
      Total shares of beneficial interest
        outstanding                                199,162        209,216
                                                ==========     ==========
Net assets:
  Class A                                       $1,384,566     $  579,551
  Class I                                          577,257      1,530,865
                                                ----------     ----------
      Total net assets                          $1,961,823     $2,110,416
                                                ==========     ==========

Class A shares:
  Net asset value and redemption price per
    share
    (net assets / shares of beneficial
    interest outstanding)                       $ 9.85         $10.09
                                                ======         ======

Class I shares:
  Net asset value and redemption price per
    share
    (net assets / shares of beneficial
    interest outstanding)                       $ 9.85         $10.09
                                                ======         ======

See notes to financial statements

<PAGE>
FINANCIAL STATEMENTS - continued

Statements of Operations (Unaudited)
- --------------------------------------------------------------------------------
                                                 Core      Equity     Special
                                               Growth      Income Opportunities
Six Months Ended February 28, 1997               Fund        Fund        Fund
- --------------------------------------------------------------------------------
Net investment income:
  Income -
    Dividends                                $  3,010   $  10,972    $  7,162
    Interest                                    3,399       1,228       9,413
                                             --------   ---------   ---------
      Total investment income                $  6,409   $  12,200   $  16,575
                                             --------   ---------   ---------

  Expenses -
    Management fee                          $   3,971    $  2,799    $  9,558
    Shareholder servicing agent fee -
      common                                      693         482       1,546
    Distribution and service fee - Class A      1,880       1,410       4,998
    Registration fees                           6,181       6,335       3,221
    Auditing fees                               3,001       3,001       3,003
    Custodian fee                               2,253       2,036       1,833
    Printing                                      607         238         746
    Postage                                       144          76         378
    Legal fees                                  1,574         928          78
    Amortization of organization expenses         215         215         215
    Miscellaneous                              --              74       1,248
                                            ---------    --------    --------
      Total expenses                        $  20,519    $ 17,594    $ 26,824
    Fees paid indirectly                         (188)       (150)       (534)
    Reduction of expenses by investment
      adviser                                 (12,370)    (11,846)    (15,080)
                                            ---------    --------    --------
      Net expenses                          $   7,961    $  5,598    $ 11,210
                                            ---------    --------    --------
        Net investment income (loss)        $  (1,552)   $  6,602    $  5,365
                                            ---------    --------    --------
Realized and unrealized gain (loss) on investments:
  Realized gain (loss) (identified cost basis) -
    Investment transactions                 $ 148,054    $ 50,317    $258,732
    Foreign currency transactions                 (14)         12          (32)
                                            ---------    --------    --------

      Net realized gain on investments
        and foreign currency transactions   $ 148,040    $ 50,329    $258,700
                                            ---------    --------    --------

  Change in unrealized appreciation on
    investments and translation of assets
    and liabilities in foreign currencies   $  53,726    $ 74,863    $ 30,864
                                            ---------    --------    --------

        Net realized and unrealized gain
          on investments and foreign
          currency                          $ 201,766    $125,192    $289,564
                                            ---------    --------    --------
          Increase in net assets from
            operations                      $ 200,214    $131,794    $294,929
                                            =========    ========    ========

See notes to financial statements
<PAGE>
Statements of Operations (Unaudited) - continued
- --------------------------------------------------------------------------------
                                                 Blue Convertible         New
                                                 Chip  Securities   Discovery
Period Ended February 28, 1997*                  Fund        Fund        Fund
- --------------------------------------------------------------------------------
Net investment income:
  Income -
    Dividends                                $  1,509    $  1,695   $  33,712
    Interest                                      771       1,462       4,733
                                             --------    --------   ---------
      Total investment income                $  2,280    $  3,157   $  38,445
                                             --------    --------   ---------

  Expenses -
    Management fee                           $    595    $    546   $   1,956
    Shareholder servicing agent fee -
      common                                      121         111         344
    Distribution and service fee - Class A        334         394         256
    Registration fees                           6,000       5,000       6,000
    Auditing fees                               3,000       3,000       3,000
    Printing                                      400         400         400
    Custodian fee                                 200         200         200
    Postage                                        10          10           5
    Legal fees                                    986         986         986
    Miscellaneous                                 104          98         147
                                             --------    --------   ---------
      Total expenses                         $ 11,750    $ 10,745   $  13,294

    Reduction of expenses by investment
      adviser                                 (10,350)     (9,460)     (9,308)
                                             --------    --------   ---------
      Net expenses                           $  1,400    $  1,285   $   3,986
                                             --------    --------   ---------
        Net investment income                $    880    $  1,872   $  34,460
                                             --------    --------   ---------
Realized and unrealized gain (loss) on investments:
  Realized gain (loss) (identified cost basis) -
    Investment transactions                  $    457    $ (1,805)  $ (14,789)
    Foreign currency transactions                  19           5      --
                                             --------    --------   ---------

      Net realized gain (loss) on
        investments and foreign currency
        transactions                         $    476    $ (1,800)  $ (14,789)
                                             --------    --------   ---------

  Change in unrealized appreciation
    (depreciation) on investments and
    translation of assets and liabilities
    in foreign currencies                    $ 23,080    $  7,854   $  (5,333)
                                             --------    --------   ---------

        Net realized and unrealized gain
          (loss) on investments and foreign
          currency                           $ 23,556    $  6,054   $ (20,122)
                                             --------    --------   ---------
          Increase in net assets from
            operations                       $ 24,436    $  7,926   $  14,338
                                             ========    ========   =========

*For the period from the commencement of investment operations, January 2,
 1997 to February 28, 1997.

See notes to financial statements
<PAGE>

FINANCIAL STATEMENTS - continued

Statements of Operations (Unaudited) - continued
- --------------------------------------------------------------------------
                                                 Research   Science and
                                            International    Technology
Period Ended February 28, 1997*                      Fund          Fund
- --------------------------------------------------------------------------
Net investment income:
  Income -
    Dividends                                    $  2,245      $ 88,647
    Interest                                        2,279         4,961
                                                 --------      --------
      Total investment income                    $  4,524      $ 93,608
                                                 --------      --------
  Expenses -
    Management fee                               $  2,614      $  2,215
    Shareholder servicing agent fee - common          346           390
    Distribution and service fee - Class A            884           310
    Registration fees                               5,000         6,000
    Auditing fees                                   3,000         3,000
    Printing                                          400           400
    Custodian fee                                     200           200
    Postage                                            10            14
    Legal fees                                        986           986
    Miscellaneous                                     151           152
                                                 --------      --------
      Total expenses                             $ 13,591      $ 13,667
    Reduction of expenses by investment
      adviser                                      (9,589)       (9,160)
                                                 --------      --------
      Net expenses                               $  4,002      $  4,507
                                                 --------      --------
        Net investment income                    $    522      $ 89,101
                                                 --------      --------
Realized and unrealized gain (loss) on investments:
  Realized gain (loss) (identified cost basis) -
    Investment transactions                      $  9,231      $(43,666)
    Foreign currency transactions                     398            (9)
                                                 --------      --------
      Net realized gain (loss) on
        investments and foreign currency
        transactions                             $  9,629      $(43,675)
                                                 --------      --------
  Change in unrealized depreciation on
    investments and translation of assets
    and liabilities in foreign currencies        $(37,172)     $(36,712)
                                                 --------      --------
        Net realized and unrealized loss on
          investments and foreign
          currency                               $(27,543)     $(80,387)
                                                 --------      --------
          Increase (decrease) in net assets
            from operations                      $(27,021)     $  8,714
                                                 ========      ========


*For the period from the commencement of investment operations, January 2,
1997 to February 28, 1997.

See notes to financial statements

<PAGE>

FINANCIAL STATEMENTS - continued
Statements of Changes in Net Assets
- -------------------------------------------------------------------------------
                                                  Six Months
                                                       Ended
                                                February 28,
                                                        1997      Period Ended
Core Growth Fund                                 (Unaudited)   August 31, 1996*
- -----------------------------------------------------------------------------
Increase (decrease) in net assets:
From operations -
  Net investment loss                             $   (1,552)       $   (362)
  Net realized gain on investments and
    foreign currency
    transactions                                     148,040          66,889
  Net unrealized gain on investments and
    foreign currency
    translation                                       53,726          17,950
                                                  ----------        -------- 
      Increase in net assets from operations      $  200,214        $ 84,477
                                                  ----------        -------- 

Distributions declared to shareholders -

  From net investment income - Class A            $    --           $   --
  From net realized gain on investments -
    Class A                                         (106,559)           --
                                                  ----------        -------- 
        Total distributions declared to
          shareholders                            $ (106,559)       $   --
                                                  ----------        -------- 

Fund shares (principal) transactions -
  Net proceeds from sale of shares                $1,217,508        $605,756
  Net asset value of shares issued to
    shareholders in
    reinvestment of distributions                    106,552            --
  Cost of shares reacquired                         (293,919)         (4,083)
                                                  ----------        -------- 
      Increase in net assets from Fund share
        transactions                              $1,030,141        $601,673
                                                  ----------        -------- 
        Total increase in net assets              $1,123,796        $686,150
Net assets:
  At beginning of period                             686,150            --
                                                  ----------        -------- 

  At end of period (including accumulated
    net investment loss
    of $1,565 and $13, respectively)              $1,809,946        $686,150
                                                  ==========        ========

*For the period from the commencement of investment operations, January 2,
 1996 to August 31, 1996.

See notes to financial statements
<PAGE>

FINANCIAL STATEMENTS - continued
Statements of Changes in Net Assets - continued
- -------------------------------------------------------------------------------
                                                  Six Months
                                                       Ended
                                           February 28, 1997      Period Ended
Equity Income Fund                               (Unaudited)   August 31, 1996*
- -------------------------------------------------------------------------------
Increase (decrease) in net assets:
From operations -
  Net investment income                             $  6,602          $  4,878
  Net realized gain on investments and                            
    foreign currency                                              
    transactions                                      50,329             7,246
  Net unrealized gain on investments and                          
    foreign currency                                              
    translation                                       74,863            25,969
                                                    --------          --------
      Increase in net assets from operations        $131,794          $ 38,093
                                                    --------          --------
                                                                  
Distributions declared to shareholders -                          
                                                                  
  From net investment income - Class A             $  (9,552)         $   --
  From net realized gain on investments -                         
    Class A                                          (13,524)             --
                                                    --------          --------
        Total distributions declared to                           
          shareholders                              $(23,076)         $   --
                                                    --------          --------
                                                                  
Fund share (principal) transactions -                             
  Net proceeds from sale of shares                  $347,213          $449,397
  Net asset value of shares issued to                             
    shareholders in                                               
    reinvestment of distributions                     23,074             --
  Cost of shares reacquired                           (1,403)          (10,110)
                                                    --------          --------
      Increase in net assets from Fund share                      
        transactions                                $368,884          $439,287
                                                    --------          --------
        Total increase in net assets                $477,602          $477,380
Net assets:                                                       
  At beginning of period                             477,380              --
                                                    --------          --------
                                                                  
  At end of period (including accumulated                         
    undistributed net                                             
    investment income of $1,928 and $4,878,                       
    respectively)                                   $954,982          $477,380
                                                    ========          ========

*For the period from the commencement of investment operations, January 2,
 1996 to August 31, 1996.

See notes to financial statements
<PAGE>

FINANCIAL STATEMENTS - continued
Statements of Changes in Net Assets - continued
- -------------------------------------------------------------------------------
                                                  Six Months
                                                       Ended
                                           February 28, 1997      Period Ended
Special Opportunities Fund                       (Unaudited)   August 31, 1996*
- -----------------------------------------------------------------------------
Increase (decrease) in net assets:
From operations -
  Net investment income                           $    5,365        $   10,016
  Net realized gain on investments and                          
    foreign currency                                            
    transactions                                     258,700           168,487
  Net unrealized gain on investments and                        
    foreign currency                                            
    translation                                       30,864            41,182
                                                  ----------        ----------
      Increase in net assets from operations      $  294,929        $  219,685
                                                  ----------        ----------
                                                                
Distributions declared to shareholders -                        
                                                                
  From net investment income - Class A            $   (8,950)       $   --
  From net realized gain on investments -                       
    Class A                                         (232,385)           --
                                                  ----------        ----------
        Total distributions declared to                         
          shareholders                            $ (241,335)       $   --
                                                  ----------        ----------
                                                                
Fund share (principal) transactions -                           
  Net proceeds from sale of shares                $  949,135        $2,038,964
  Net asset value of shares issued to                           
    shareholders in                                             
    reinvestment of distributions                    241,330            --
  Cost of shares reacquired                          (47,915)              (14)
                                                  ----------        ----------
      Increase in net assets from Fund share                    
        transactions                              $1,142,550        $2,038,950
                                                  ----------        ----------
        Total increase in net assets              $1,196,144        $2,258,635
Net assets:                                                     
  At beginning of period                           2,258,635            --
                                                  ----------        ----------
                                                                
  At end of period (including accumulated                       
    undistributed net                                           
    investment income of $6,431 and $10,016,                    
    respectively)                                 $3,454,779        $2,258,635
                                                  ==========        ==========
                                                               
*For the period from the commencement of investment operations, January 2,
 1996 to August 31, 1996.

See notes to financial statements
<PAGE>

FINANCIAL STATEMENTS - continued
Statements of Changes in Net Assets (Unaudited) - continued
- --------------------------------------------------------------------------------
                                                Blue  Convertible         New
                                                Chip   Securities   Discovery
Period Ended February 28, 1997*                 Fund         Fund        Fund
- --------------------------------------------------------------------------------
Increase (decrease) in net assets:
From operations -
  Net investment income                     $    880     $  1,872  $   34,460
  Net realized gain (loss) on
    investments and foreign currency
    transactions                                 476       (1,800)    (14,789)
  Net unrealized gain (loss) on
    investments and foreign currency
    translation                               23,080        7,854      (5,333)
                                            --------     --------  ----------
      Increase in net assets from
        operations                          $ 24,436     $  7,926  $   14,338
                                            --------     --------  ----------

Fund share (principal) transactions -
  Net proceeds from sale of shares          $604,990     $547,061  $1,742,009
  Cost of shares reacquired                   (1,311)        (801)         (1)
                                            --------     --------  ----------
      Increase in net assets from Fund
        share transactions                  $603,679     $546,260  $1,742,008
                                            --------     --------  ----------
        Total increase in net assets        $628,115     $554,186  $1,756,346
Net assets:
  At beginning of period                       --           --         --
                                            --------     --------  ----------

  At end of period (including
    accumulated undistributed net
    investment income of $880, $1,872
    and $34,460, respectively)              $628,115     $554,186  $1,756,346
                                            ========     ========  ==========

*For the period from the commencement of investment operations, January 2,
1997 to February 28, 1997.

See notes to financial statements

- --------------------------------------------------------------------------
                                                  Research    Science and
                                             International     Technology
Period Ended February 28, 1997*                       Fund           Fund
- ----------------------------------------------------------------------------
Increase (decrease) in net assets:
From operations -
  Net investment income                         $      522     $   89,101
  Net realized gain (loss) on investments
    and foreign currency transactions                9,629        (43,675)
  Net unrealized loss on investments and
    foreign currency translation                   (37,172)       (36,712)
                                                ----------     ----------
      Increase (decrease) in net assets from
        operations                              $  (27,021)    $    8,714
                                                ----------     ----------

Fund share (principal) transactions -
  Net proceeds from sale of shares              $1,989,004     $2,101,703
  Cost of shares reacquired                           (160)            (1)
                                                ----------     ----------
      Increase in net assets from Fund share
        transactions                            $1,988,844     $2,101,702
                                                ----------     ----------
        Total increase in net assets            $1,961,823     $2,110,416
Net assets:
  At beginning of period                            --             --
                                                ----------     ----------

  At end of period (including accumulated
    undistributed net investment
    income of $522 and $89,101,
    respectively)                               $1,961,823     $2,110,416
                                                ==========     ==========

*For the period from the commencement of investment operations, January 2,
1997 to February 28, 1997.

See notes to financial statements

<PAGE>

FINANCIAL STATEMENTS - continued

<TABLE>
<CAPTION>
Financial Highlights (Unaudited)
- -----------------------------------------------------------------------------------------------------------------------
                                                 Six Months Ended           Period Ended              Period Ended
Core Growth Fund                                February 28, 1997        August 31, 1996*        February 28, 1997**
- -----------------------------------------------------------------------------------------------------------------------
                                                          Class A                                          Class I
- -----------------------------------------------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
<S>                                                       <C>                    <C>                       <C>    
Net asset value - beginning of period                     $ 12.33                $ 10.00                   $ 12.99
                                                          -------                -------                   -------
Income from investment operations# -
Net investment loss(S)                                    $ (0.02)               $ (0.01)                  $   --
Net realized and unrealized gain on investments and
  foreign currency transactions                              2.91                   2.34                      0.57
                                                          -------                -------                   -------
Total from investment operations                          $  2.89                $  2.33                   $  0.57
                                                          -------                -------                   -------
Less distributions declared to shareholders -
From net realized gain on investments                     $ (1.68)               $   --                    $   --
                                                          -------                -------                   -------
Total distributions declared to shareholders              $ (1.68)               $   --                    $   --
                                                          -------                -------                   -------
Net asset value - end of period                           $ 13.54                $ 12.33                   $ 13.56
                                                          =======                =======                   =======
Total return(+)                                            24.12%++               23.30%++                   5.78%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                                  1.50%+                 1.50%+                    1.50%+
  Net investment loss                                     (0.34)%+               (0.11)%+                  (0.18)%+
Portfolio turnover                                           175%                   204%                      175%
Average commission rate                                   $0.0356                $0.0411                   $0.0356
Net assets at end of period (000 omitted)                 $   793                $   686                   $ 1,017

 * For the period from the commencement of investment operations, January 2, 1996 to August 31, 1996.
** For the period from the commencement of offering of Class I shares, January 2, 1997 to February 28, 1997.
 + Annualized.
++ Not annualized.
 # Per share data is based on average shares outstanding.
## The Fund's expenses are calculated without reduction for fees paid indirectly. The reduction of expenses by
   fees paid indirectly, as a percentage of net assets, amounted to:
                                                          (0.04)%+               (0.02)%+                  (0.04)%+

(+)Total returns for Class A shares do not include the applicable sales charge. If the charge had been included, the
   results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the Funds at not more than 1.50% of each Fund's
   average daily net assets. The investment adviser did not impose a portion of its management fee for the periods
   indicated. If this fee had been incurred by the Fund, the net investment income per share and the ratios would have been:

     Net investment income                              $  (0.16)                $(0.18)                 $  (0.05)
     Ratios (to average net assets):
       Expenses##                                           4.01%+                 4.28%+                    3.51%+
       Net investment loss                                (2.85)%+               (2.34)%+                  (2.19)%+
</TABLE>

See notes to financial statements
<PAGE>
FINANCIAL STATEMENTS - continued

<TABLE>
<CAPTION>
Financial Highlights (Unaudited) - continued
- ------------------------------------------------------------------------------------------------------------------------
                                                 Six Months Ended           Period Ended              Period Ended
Equity Income Fund                              February 28, 1997        August 31, 1996*        February 28, 1997**
- ------------------------------------------------------------------------------------------------------------------------
                                                          Class A                                          Class I
- ------------------------------------------------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
<S>                                                        <C>                    <C>                       <C>    
Net asset value - beginning of period                      $ 11.07                $ 10.00                   $ 12.21
                                                           -------                -------                   -------
Income from investment operations# -
Net investment income(S)                                   $  0.12                $  0.13                   $  0.03
Net realized and unrealized gain on investments and
  foreign currency transactions                               2.10                   0.94                      0.66
                                                           -------                -------                   -------
Total from investment operations                           $  2.22                $  1.07                   $  0.69
                                                           -------                -------                   -------
Less distributions declared to shareholders -
  From net investment income                               $ (0.16)               $  --                     $  --
  From net realized gain (loss) on investments               (0.22)                  --                        --
                                                           -------                -------                   -------
Total distributions declared to shareholders               $ (0.38)               $  --                     $  --
                                                           -------                -------                   -------
Net asset value - end of period                            $ 12.91                $ 11.07                   $ 12.90
                                                           =======                =======                   =======
Total return(+)                                             20.26%++               10.70%++                   6.35%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                                   1.50%+                 1.50%+                    1.50%+
  Net investment income                                      1.90%+                 1.83%+                    1.37%+
Portfolio turnover                                             66%                    56%                       66%
Average commission rate                                    $0.0334                $0.0331                   $0.0334
Net assets at end of period (000 omitted)                  $   357                $   477                   $   598

 * For the period from the commencement of investment operations, January 2, 1996 to August 31, 1996.
** For the period from the commencement of offering of Class I shares, January 2, 1997 to February 28, 1997.
 + Annualized.
++ Not annualized.
 # Per share data is based on average shares outstanding.
## The Fund's expenses are calculated without reduction for fees paid indirectly. The reduction of expenses by fees
   paid indirectly, as a percentage of net assets, amounted to:
                                                           (0.04)%+               (0.03)%+                  (0.04)%+

(+)Total returns for Class A shares do not include the applicable sales charge. If the charge had been included,
   the results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the Funds at not more than 1.50% of each
   Fund's average daily net assets. The investment adviser did not impose a portion of its management fee for the
   periods indicated. If this fee had been incurred by the Fund, the net investment income per share and the
   ratios would have been:

     Net investment income                                  $(0.11)                $(0.06)                   $(0.04)
     Ratios (to average net assets):
       Expenses##                                            5.23%+                 4.67%+                    4.74%+
       Net investment loss                                 (1.83)%+               (0.78)%+                  (1.87)%+
</TABLE>

See notes to financial statements
<PAGE>
FINANCIAL STATEMENTS - continued

<TABLE>
<CAPTION>
Financial Highlights (Unaudited) - continued
- ------------------------------------------------------------------------------------------------------------------------
                                                 Six Months Ended           Period Ended              Period Ended
Special Opportunities Fund                      February 28, 1997        August 31, 1996*        February 28, 1997**
- ------------------------------------------------------------------------------------------------------------------------
                                                          Class A                                          Class I
- ------------------------------------------------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
<S>                                                        <C>                    <C>                       <C>    
Net asset value - beginning of period                      $ 11.36                $ 10.00                   $ 11.38
                                                           -------                -------                   -------
Income from investment operations# -
Net investment income(S)                                   $  0.01                $  0.06                   $  0.04
Net realized and unrealized gain on investments and
  foreign currency transactions                               1.40                   1.30                      0.19
                                                           -------                -------                   -------
Total from investment operations                           $  1.41                $  1.36                   $  0.23
                                                           -------                -------                   -------
Less distributions declared to shareholders -
  From net investment income                               $ (0.04)               $  --                     $  --
  From net realized gain (loss) on investments               (1.13)                  --                        --
                                                           -------                -------                   -------
Total distributions declared to shareholders               $ (1.17)               $  --                     $  --
                                                           -------                -------                   -------
Net asset value - end of period                            $ 11.60                $ 11.36                   $ 11.61
                                                           =======                =======                   =======
Total return(+)                                             12.59%++               13.60%++                   2.66%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                                   0.88%+                 1.50%+                    0.88%+
  Net investment income                                      0.17%+                 0.78%+                    1.34%+
Portfolio turnover                                             89%                   108%                       89%
Average commission rate                                    $0.0440                $0.0361                   $0.0440
Net assets at end of period (000 omitted)                  $ 1,666                $ 2,259                   $ 1,789

 * For the period from the commencement of investment operations, January 2, 1996 to August 31, 1996.
** For the period from the commencement of offering of Class I shares, January 2, 1997 to February 28, 1997.
 + Annualized.
++ Not annualized.
 # Per share data is based on average shares outstanding.
## The Fund's expenses are calculated without reduction for fees paid indirectly. The reduction of expenses by fees
   paid indirectly, as a percentage of net assets, amounted to:
                                                           (0.04)%+               (0.02)%+                  (0.04)%+

(+)Total returns for Class A shares do not include the applicable sales charge. If the charge had been included,
   the results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the Funds at not more than 1.50% of each
   Fund's average daily net assets. The investment adviser did not impose a portion of its management fee for the
   periods indicated. If this fee had been incurred by the Fund, the net investment income per share and the
   ratios would have been:

     Net investment income                                  $(0.07)                $(0.01)                   $ 0.01
     Ratios (to average net assets):
       Expenses##                                            2.21%+                 2.97%+                    1.72%+
       Net investment income (loss)                        (1.16)%+               (0.16)%+                    0.50%+
</TABLE>

See notes to financial statements
<PAGE>
FINANCIAL STATEMENTS - continued

Financial Highlights (Unaudited) - continued
- --------------------------------------------------------------------------------
Blue Chip Fund                             Period Ended February 28, 1997*
- --------------------------------------------------------------------------------
                                                      Class A          Class I
- --------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                  $10.00          $10.00
                                                       ------          ------
Income from investment operations# -
Net investment income(S)                               $ 0.01          $ 0.01
Net realized and unrealized gain on investments          0.42            0.42
                                                       ------          ------
Total from investment operations                       $ 0.43          $ 0.43
                                                       ------          ------
Net asset value - end of period                        $10.43          $10.43
                                                       ======          ======
Total return(+)                                         4.30%++         4.30%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                              1.50%+          1.50%+
  Net investment income                                 0.95%+          0.94%+
Portfolio turnover                                         6%              6%
Average commission rate                               $0.0366         $0.0366
Net assets at end of period (000 omitted)                $457            $172

  *For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
  +Annualized.
 ++Not annualized.
  #Per share data for periods is based on average shares outstanding.
(+)Total returns for Class A shares do not include the applicable sales charge.
   If the charge had been included, the results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the
   Funds at not more than 1.50% of each Fund's average daily net assets. The
   investment adviser did not impose a portion of its management fee for the
   periods indicated. If this fee had been incurred by the Fund, the net
   investment income per share and the ratios would have been:

     Net investment income                             $(0.16)         $(0.16)
     Ratios (to average net assets):
       Expenses                                        12.76%+         12.27%+
       Net investment loss                           (10.31)%+        (9.83)%+

See notes to financial statements
<PAGE>
FINANCIAL STATEMENTS - continued

Financial Highlights (Unaudited) - continued
- --------------------------------------------------------------------------------
Convertible Securities Fund                Period Ended February 28, 1997*
- --------------------------------------------------------------------------------
                                                      Class A         Class I
- --------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                  $10.00          $10.00
                                                       ------          ------
Income from investment operations# -
Net investment income(S)                               $  --           $ 0.03
Net realized and unrealized gain on investments          0.15            0.11
                                                       ------          ------
Total from investment operations                       $ 0.15          $ 0.14
                                                       ------          ------
Net asset value - end of period                        $10.15          $10.14
                                                       ======          ======
Total return(+)                                         1.50%++         1.40%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                              1.50%+          1.50%+
  Net investment income                                 2.20%+          2.18%+
Portfolio turnover                                        23%             23%
Average commission rate                               $0.0481         $0.0481
Net assets at end of period (000
 omitted)                                                $511             $43

  *For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
  +Annualized.
 ++Not annualized.
  #Per share data for periods is based on average shares outstanding.
(+)Total returns for Class A shares do not include the applicable sales charge.
   If the charge had been included, the results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the
   Funds at not more than 1.50% of each Fund's average daily net assets. The
   investment adviser did not impose a portion of its management fee for the
   periods indicated. If this fee had been incurred by the Fund, the net
   investment income per share and the ratios would have been:

     Net investment income                             $  --           $(0.13)
     Ratios (to average net assets):
       Expenses                                        12.63%+         12.13%+
       Net investment loss                            (8.93)%+        (8.45)%+

See notes to financial statements
<PAGE>
FINANCIAL STATEMENTS - continued

Financial Highlights (Unaudited) - continued
- --------------------------------------------------------------------------------
New Discovery Fund                         Period Ended February 28, 1997*
- --------------------------------------------------------------------------------
                                                      Class A        Class I
- --------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                  $10.00        $10.00
                                                       ------        ------
Income from investment operations# -
Net investment income(S)                               $ 0.19        $ 0.20
Net realized and unrealized loss on investments         (0.10)        (0.11)
                                                       ------        ------
Total from investment operations                       $ 0.09        $ 0.09
                                                       ------        ------
Net asset value - end of period                        $10.09        $10.09
                                                       ======        ======
Total return(+)                                         0.90%++       0.90%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                              1.50%+        1.50%+
  Net investment income                                13.90%+       12.79%+
Portfolio turnover                                       327%          327%
Average commission rate                               $0.0268       $0.0268
Net assets at end of period (000 omitted)                $377        $1,379

  *For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
  +Annualized.
 ++Not annualized.
  #Per share data for periods is based on average shares outstanding.
(+)Total returns for Class A shares do not include the applicable sales charge.
   If the charge had been included, the results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the
   Funds at not more than 1.50% of each Fund's average daily net assets. The
   investment adviser did not impose a portion of its management fee for the
   periods indicated. If this fee had been incurred by the Fund, the net
   investment income per share and the ratios would have been:

     Net investment income                             $ 0.14        $ 0.15
     Ratios (to average net assets):
       Expenses                                         5.42%+        4.92%+
       Net investment income                            9.98%+        9.37%+

See notes to financial statements
<PAGE>
FINANCIAL STATEMENTS - continued

Financial Highlights (Unaudited) - continued
- --------------------------------------------------------------------------------
Research International Fund                Period Ended February 28, 1997*
- --------------------------------------------------------------------------------
                                                      Class A        Class I
- --------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                  $10.00         $10.00
                                                       ------         ------
Income from investment operations# -
Net investment income(S)                               $  --          $  --
Net realized and unrealized loss on investments         (0.15)         (0.15)
                                                       ------         ------
Total from investment operations                       $(0.15)        $(0.15)
                                                       ------         ------
Net asset value - end of period                        $ 9.85         $ 9.85
                                                       ======         ======
Total return(+)                                       (1.50)%++      (1.50)%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                              1.50%+         1.50%+
  Net investment income                                 0.21%+         0.17%+
Portfolio turnover                                       176%           176%
Average commission rate                               $0.0193        $0.0193
Net assets at end of period (000
 omitted)                                              $1,385           $577

  *For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
  +Annualized.
 ++Not annualized.
  #Per share data for periods is based on average shares outstanding.
(+)Total returns for Class A shares do not include the applicable sales charge.
   If the charge had been included, the results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the
   Funds at not more than 1.50% of each Fund's average daily net assets. The
   investment adviser did not impose a portion of its management fee for the
   periods indicated. If this fee had been incurred by the Fund, the net
   investment income per share and the ratios would have been:

     Net investment income                             $(0.05)        $(0.05)
     Ratios (to average net assets):
       Expenses                                         5.27%+         4.77%+
       Net investment loss                            (3.56)%+       (3.10)%+

See notes to financial statements
<PAGE>
FINANCIAL STATEMENTS - continued

Financial Highlights (Unaudited) - continued
- --------------------------------------------------------------------------------
Science and Technology Fund                Period Ended February 28, 1997*
- --------------------------------------------------------------------------------
                                                      Class A        Class I
- --------------------------------------------------------------------------------
Per share data (for a share outstanding throughout each period):
Net asset value - beginning of period                  $10.00         $10.00
                                                       ------         ------
Income from investment operations# -
Net investment income(S)                               $ 0.38         $ 0.46
Net realized and unrealized loss on investments         (0.29)         (0.37)
                                                       ------         ------
Total from investment operations                       $ 0.09         $ 0.09
                                                       ------         ------
Net asset value - end of period                        $10.09         $10.09
                                                       ======         ======
Total return(+)                                         0.80%++        0.70%++
Ratios (to average net assets)/Supplemental data(S):
  Expenses                                              1.50%+         1.50%+
  Net investment income                                30.63%+        29.42%+
Portfolio turnover                                       716%           716%
Average commission rate                               $0.0268        $0.0268
Net assets at end of period (000
 omitted)                                                $580         $1,531

  *For the period from the commencement of investment operations, January 2,
   1997 to February 28, 1997.
  +Annualized.
 ++Not annualized.
  #Per share data for periods is based on average shares outstanding.
(+)Total returns for Class A shares do not include the applicable sales charge.
   If the charge had been included, the results would have been lower.
(S)The investment adviser voluntarily agreed to maintain the expenses of the
   Funds at not more than 1.50% of each Fund's average daily net assets. The
   investment adviser did not impose a portion of its management fee for the
   periods indicated. If this fee had been incurred by the Fund, the net
   investment income per share and the ratios would have been:

     Net investment income                             $ 0.34         $ 0.42
     Ratios (to average net assets):
       Expenses                                         4.95%+         4.45%+
       Net investment income                           27.18%+        26.47%+

See notes to financial statements

<PAGE>
NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

(1) Business and Organization
MFS Series Trust I (the Trust) is organized as a Massachusetts business trust
and is registered under the Investment Company Act of 1940, as amended, as an
open-end management investment company. The Trust presently consists of eight
Funds, as follows: MFS Cash Reserve Fund, MFS Managed Sectors Fund, MFS World
Asset Allocation Fund, MFS Aggressive Growth Fund, MFS Research Growth and
Income Fund, MFS Core Growth Fund* (the Core Growth Fund), MFS Equity Income
Fund* (the Equity Income Fund), MFS Special Opportunities Fund* (the Special
Opportunities Fund), MFS Blue Chip Fund* (the Blue Chip Fund), MFS Convertible
Securities Fund* (the Convertible Securities Fund), MFS New Discovery Fund* (the
New Discovery Fund), MFS Research International Fund* (the Research
International Fund) and MFS Science and Technology Fund* (the Science and
Technology Fund). Each Fund, except MFS Managed Sectors Fund, MFS World Asset
Allocation Fund and the MFS Special Opportunities Fund is diversified.

The Funds denoted with an asterisk (*) above are included within these financial
statements.

(2) Significant Accounting Policies
General -- The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

Investment Valuations -- Equity securities listed on securities exchanges or
reported through the NASDAQ system are valued at last sale prices. Unlisted
equity securities or listed equity securities for which last sale prices are not
available are valued at last quoted bid prices. Debt securities (other than
short-term obligations which mature in 60 days of less), including listed issues
and forward contracts, are valued on the basis of valuations furnished by
dealers or by a pricing service with consideration to factors such as
institutional-size trading in similar groups of securities, yield, quality,
coupon rate, maturity, type of issue, trading characteristics and other market
data, without exclusive reliance upon exchange or over-the-counter prices.
Investments in foreign securities are vulnerable to the effects of changes in
the relative values of the local currency and the U.S. dollar and to the effects
of changes in each country's legal, political and economic environment.
Short-term obligations, which mature in 60 days or less, are valued at amortized
cost, which approximates market value. Futures contracts, options and options on
futures contracts listed on commodities exchanges are valued at closing
settlement prices. Over-the-counter options are valued by brokers through the
use of a pricing model which takes into account closing bond valuations, implied
volatility and short-term repurchase rates. Securities for which there are no
such quotations or valuations are valued at fair value as determined in good
faith by or at the direction of the Trustees.

Foreign Currency Translation -- Investment valuations, other assets, and
liabilities initially expressed in foreign currencies are converted each
business day into U.S. dollars based upon current exchange rates. Purchases and
sales of foreign investments, income and expenses are converted into U.S.
dollars based upon currency exchange rates prevailing on the respective dates of
such transactions. Gains and losses attributable to foreign currency exchange
rates on sales of securities are recorded for financial statement purposes as
net realized gains and losses on investments. Gains and losses attributable to
foreign exchange rate movements on income and expenses are recorded for
financial statement purposes as foreign currency transaction gains and losses.
That portion of both realized and unrealized gain and losses on investments that
result from fluctuations in foreign currency exchange rates is not separately
disclosed.

Deferred Organization Expenses -- Costs incurred by each Fund in connection with
its organization have been deferred and are being amortized on a straight-line
basis over a five-year period beginning on the date of commencement of
operations of each Fund.

Forward Foreign Currency Exchange Contracts -- Each Fund may enter into forward
foreign currency exchange contracts for the purchase or sale of a specific
foreign currency at a fixed price on a future date. Risks may arise upon
entering into these contracts from the potential inability of counterparties to
meet the terms of their contracts and from unanticipated movements in the value
of a foreign currency relative to the U.S. dollar. Each Fund will enter into
forward contracts for hedging purposes as well as for non-hedging purposes. For
hedging purposes, each Fund may enter into contracts to deliver or receive
foreign currency they will receive from or require for their normal investment
activities. The Funds may also use contracts in a manner intended to protect
foreign currency-denominated securities from declines in value due to
unfavorable exchange rate movements. For non-hedging purposes, each Fund may
enter into contracts with the intent of changing the relative exposure of each
Fund's portfolio of securities to different currencies to take advantage of
anticipated changes. The forward foreign currency exchange contracts are
adjusted by the daily exchange rate of the underlying currency and any gains or
losses are recorded for financial statement purposes as unrealized until the
contract settlement date.

Written Options -- Each Fund may write covered call or put options for which
premiums are received and are recorded as liabilities, and are subsequently
adjusted to the current value of the options written. Premiums received from
writing options which expire are treated as realized gains. Premiums received
from writing options which are exercised or are closed are offset against the
proceeds or amount paid on the transaction to determine the realized gain or
loss. If a put option is exercised, the premium reduces the cost basis of the
security purchased by each Fund. Each Fund, as writer of an option, may have no
control over whether the underlying securities may be sold (call) or purchased
(put) and, as a result, bears the market risk of an unfavorable change in the
price of the securities underlying the written option. In general, written call
options may serve as a partial hedge against decreases in value in the
underlying securities to the extent of the premium received. Written options may
also be used as part of an income producing strategy reflecting the view of the
Fund's management on the direction of interest rates.

Short Sales -- The Special Opportunities Fund, the Convertible Securities Fund,
the New Discovery Fund and the Science and Technology Fund may enter into short
sales. A short sale transaction involves selling a security which a Fund does
not own with the intent of purchasing it later at a lower price. A fund will
realize a gain if the security price decreases and a loss if the security price
increases between the date of the short sale and the date on which the Fund must
replace the borrowed security. Possible losses from short sales can be greater
than losses from the actual purchase of a security. The amount of any gain will
be decreased, and the amount of any loss increased, by the amount of the
premium, dividends or interest a Fund may be required to pay in connection with
a short sale. Whenever a Fund engages in short sales, its custodian segregates
cash or U.S. Government securities in an amount that, when combined with the
amount of collateral deposited with the broker in connection with the short
sale, at least equals the current market value of the security sold short.

Investment Transactions and Income -- Investment transactions are recorded on
the trade date. Interest income is recorded on the accrual basis. All premium
and original issue discount are amortized or accreted for financial statement
and tax reporting purposes as required by federal income tax regulations.
Dividend income is recorded on the ex-dividend date for dividends received in
cash. Dividend payments received in additional securities are recorded on the
ex-dividend date in an amount equal to the value of the security on such date.

The Special Opportunities Fund and the Convertible Securities Fund can invest up
to 100% of its portfolio in high-yield securities rated below investment grade.
Investments in high-yield securities involve greater degrees of credit and
market risk than investments in higher-rated securities, and tend to be more
sensitive to economic conditions.

These Funds use the effective interest method for reporting interest income on
payment-in-kind (PIK) bonds, whereby interest income on PIK bonds is recorded
ratably by the Funds at a constant yield to maturity. Legal fees and other
related expenses incurred to preserve and protect the value of a security owned
are added to the cost of the security; other legal fees are expensed. Capital
infusions, which are generally non-recurring, incurred to protect or enhance the
value of high-yield debt securities, are reported as an addition to the cost
basis of the security. Costs that are incurred to negotiate the terms or
conditions of capital infusions or that are expected to result in a plan of
reorganization are reported as realized losses. Ongoing costs incurred to
protect or enhance an investment, or costs incurred to pursue other claims or
legal actions, are reported as operating expenses.

Fees Paid Indirectly -- Each Fund's custodian bank calculates its fee based on
each Fund's average daily net assets. The fee is reduced according to a fee
arrangement, which provides for custody fees to be reduced based on a formula
developed to measure the value of cash deposited with the custodian by each
Fund. This amount is shown as a reduction of expenses on the Statement of
Operations.

Tax Matters and Distributions -- Each Fund's policy is to comply with the
provisions of the Internal Revenue Code (the Code) applicable to regulated
investment companies and to distribute to shareholders all of its taxable
income, including any net realized gain on investments. Accordingly, no
provision for federal income or excise tax is provided. Each Fund files a tax
return annually using tax accounting methods required under provisions of the
Code which may differ from generally accepted accounting principles, the basis
on which these financial statements are prepared. Accordingly, the amount of net
investment income and net realized gain reported on these financial statements
may differ from that reported on each Fund's tax return and, consequently, the
character of distributions to shareholders reported in the financial highlights
may differ from that reported to shareholders on Form 1099-DIV. Foreign taxes
have been provided for on interest and dividend income earned on foreign
investments in accordance with the applicable country's tax rates and to the
extent unrecoverable are recorded as a reduction of investment income.
Distributions to shareholders are recorded on the ex-dividend date.

Each Fund distinguishes between distributions on a tax basis and a financial
reporting basis and requires that only distributions in excess of tax basis
earnings and profits are reported in the financial statements as a tax return of
capital. Differences in the recognition or classification of income between the
financial statements and tax earnings and profits which result in temporary
over-distributions for financial statement purposes, are classified as
distributions in excess of net investment income or accumulated net realized
gains.

Multiple Classes of Shares of Beneficial Interest -- The Funds offer Class A and
Class I shares. The two classes of shares differ in their respective shareholder
servicing agent, distribution and service fees. All shareholders bear the common
expenses of the Fund pro rata based on average daily net assets of each class,
without distinction between share classes. Dividends are declared separately for
each class. No class has preferential dividend rights; differences in per share
dividend rates are generally due to differences in separate class expenses.

(3) Transactions with Affiliates 
Investment Adviser -- Each Fund has an investment advisory agreement with
Massachusetts Financial Services Company (MFS) to provide overall investment
advisory and administrative services, and general office facilities. The
management fee is computed daily and paid monthly at an effective annual rate of
0.65% of average daily net assets for the Blue Chip Fund and the Convertible
Securities Fund, at an annual rate of 0.75% of average daily net assets for the
Core Growth Fund, the Equity Income Fund, the New Discovery Fund, the Science
and Technology Fund, and the Special Opportunities Fund, and at an annual rate
of 1.00% of average daily net assets for the Research International Fund. For
the period ended February 28, 1997, the investment adviser did not impose any of
its fee, which is reflected as a reduction of expenses in the Statement of
Operations.

Under a temporary expense reimbursement agreement with MFS, MFS has voluntarily
agreed to pay all of each Fund's operating expenses exclusive of management,
distribution and service fees. Each Fund in turn will pay MFS an expense
reimbursement fee not greater than 1.50% of average daily net assets of its
Class A shares. To the extent that the expense reimbursement fee exceeds each
Fund's actual expenses, the excess will be applied to amounts paid by MFS in
prior years. At February 28, 1997, the aggregate unreimbursed expenses owed to
MFS by each Fund amounted to:

<TABLE>
<CAPTION>
     Core            Equity            Blue       Convertible               New          Research     Science and
   Growth            Income            Chip        Securities         Discovery     International      Technology
     Fund              Fund            Fund              Fund              Fund              Fund            Fund
- ------------------------------------------------------------------------------------------------------------------
<S>                 <C>             <C>               <C>               <C>               <C>             <C>     
  $(5,825)          $(7,156)        $(9,300)          $(8,410)          $(6,752)          $(5,744)        $(6,244)
</TABLE>

Each Fund pays no compensation directly to its Trustees who are officers of the
investment adviser, or to officers of each Fund, all of whom receive
remuneration for their services to each Fund from MFS. Certain of the officers
and Trustees of each Fund are officers or directors of MFS, MFS Fund
Distributors, Inc. (MFD) and MFS Service Center, Inc. (MFSC). The Trustees are
currently not receiving any payments for their services to each Fund.

Distributor -- MFD, a wholly owned subsidiary of MFS, as distributor, did not
receive any sales charges on sales on Class A shares of each Fund for the period
ended February 28, 1997.

The Trustees have adopted a distribution plan for Class A shares pursuant to
Rule 12b-1 of the Investment Company Act of 1940 as follows:

The Class A distribution plan provides that each Fund will pay MFD up to 0.50%
per annum of its average daily net assets attributable to Class A shares in
order that MFD may pay expenses on behalf of each Fund related to the
distribution and servicing of its shares. These expenses include a service fee
to each securities dealer that enters into a sales agreement with MFD of up to
0.25% per annum of each Fund's average daily net assets attributable to Class A
shares which are attributable to that securities dealer, a distribution fee to
MFD of up to 0.25% per annum of each Fund's average daily net assets
attributable to Class A shares, commissions to dealers and payments to MFD
wholesalers for sales at or above a certain dollar level, and other such
distribution-related expenses that are approved by each Fund. Distribution and
service fees under the Class A distribution plan are currently being waived.

Purchases over $1 million of Class A shares and certain purchases into
retirement plans are subject to a contingent deferred sales charge in the event
of a shareholder redemption within 12 months following such purchase. There were
no contingent deferred sales charges imposed during the period ended February
28, 1997 on Class A shares of each Fund.

Shareholder Servicing Agent -- MFSC, a wholly owned subsidiary of MFS, earns a
fee for its services as shareholder serving agent. The fee is calculated as a
percentage of the average daily net assets of each Fund at an effective annual
rate of 0.13%. Prior to January 1, 1997, the fee was calculated as a percentage
of the average daily net assets of Class A at an effective annual rate of up to
0.15%. MFSC is currently waiving its fee for an indefinite period.

(4) Portfolio Securities 
Purchases and sales of investments, other than purchased option transactions,
U.S. government and short-term obligations, were as follows:

<TABLE>
<CAPTION>
                                                 Core           Equity          Special             Blue
                                               Growth           Income    Opportunities             Chip
                                                 Fund             Fund             Fund             Fund
- ----------------------------------------------------------------------------------------------------------
<S>                                        <C>              <C>              <C>              <C>       
Purchases                                  $2,325,915       $  810,785       $2,795,370       $  625,899
                                           ==========       ==========       ==========       ==========

Sales                                      $1,664,515       $  476,074       $2,184,663       $   23,691
                                           ==========       ==========       ==========       ==========

<CAPTION>
                                          Convertible              New         Research      Science and
                                           Securities        Discovery    International       Technology
                                                 Fund             Fund             Fund             Fund
- ----------------------------------------------------------------------------------------------------------
<S>                                        <C>              <C>              <C>              <C>       
Purchases                                  $  624,195       $4,632,587       $2,147,829       $8,829,159
                                           ==========       ==========       ==========       ==========

Sales                                      $   84,338       $2,996,493       $2,081,625       $7,106,378
                                           ==========       ==========       ==========       ==========
</TABLE>

The cost and unrealized appreciation or depreciation in value of the investments
owned by each Fund, as computed on a federal income tax basis, are as follows:

<TABLE>
<CAPTION>
                                                 Core           Equity          Special             Blue
                                               Growth           Income    Opportunities             Chip
                                                 Fund             Fund             Fund             Fund
- --------------------------------------------------------------------------------------------------------
<S>                                        <C>              <C>              <C>              <C>       
Aggregate cost                             $1,757,850       $  833,755       $3,435,464       $  602,664
                                           ==========       ==========       ==========       ==========
Gross unrealized appreciation              $   98,521       $  105,128       $  296,986        $  32,791
Gross unrealized depreciation                 (26,840)          (4,296)        (223,962)          (9,711)
                                           ----------       ----------       ----------       ----------
  Net unrealized appreciation              $   71,681       $  100,832       $   73,024        $  23,080
                                           ==========       ==========       ==========       ==========

<CAPTION>
                                          Convertible              New         Research      Science and
                                           Securities        Discovery    International       Technology
                                                 Fund             Fund             Fund             Fund
- --------------------------------------------------------------------------------------------------------
<S>                                        <C>              <C>              <C>              <C>       
Aggregate cost                             $  541,518       $1,686,286       $2,113,386       $2,198,963
                                           ==========       ==========       ==========       ==========
Gross unrealized appreciation              $   21,890       $   69,639       $   40,098       $   40,952
Gross unrealized depreciation                 (14,036)         (74,972)         (77,051)         (77,664)
                                           ----------       ----------       ----------       ----------
  Net unrealized appreciation
   (depreciation)                          $    7,854       $   (5,333)      $  (36,953)      $  (36,712)
                                           ==========       ==========       ==========       ==========
</TABLE>

(5) Shares of Beneficial Interest
Each Fund's Declaration of Trust permits the Trustees to issue an unlimited
number of full and fractional shares of beneficial interest (without par value).
Transactions in Fund shares were as follows:

<TABLE>
<CAPTION>
Class A Shares
                     Period Ended February 28, 1997
                     ---------------------------------------------------------------------------------------------
                                 Core Growth Fund              Equity Income Fund       Special Opportunities Fund
                     ---------------------------------------------------------------------------------------------
                          Shares           Amount         Shares           Amount         Shares            Amount
- ------------------------------------------------------------------------------------------------------------------
<S>                       <C>          <C>                <C>          <C>                <C>           <C>       
Shares sold               51,112       $  686,975         19,146       $  226,214         79,367        $  925,741
Shares issued to
  shareholders in
  reinvestment of
  distributions            8,292          106,552          1,898           23,074         21,567           241,330
Shares transferred
to Class I               (33,596)        (430,367)       (36,420)        (441,769)      (154,886)       (1,750,208)
Shares reacquired        (22,944)        (293,919)          (125)          (1,403)        (1,251)          (15,361)
                          ------       ----------         ------       ----------         ------        ----------
  Net increase
   (decrease)              2,864        $  69,241        (15,501)      $ (193,884)       (55,203)       $ (598,498)
                          ======       ==========         ======       ==========         ======        ==========

<CAPTION>
Class I Shares
                     Period Ended February 28, 1997
                     ---------------------------------------------------------------------------------------------
                                 Core Growth Fund              Equity Income Fund       Special Opportunities Fund
                     ---------------------------------------------------------------------------------------------
                          Shares           Amount         Shares           Amount         Shares            Amount
- ------------------------------------------------------------------------------------------------------------------
<S>                       <C>          <C>                 <C>         <C>                 <C>           <C>      
Shares sold               41,414       $  530,533          9,959       $  120,999          2,069         $  23,394
Shares issued to
  shareholders in
  reinvestment of
  distributions             --              --              --              --              --               --
Shares transferred
from Class A              33,596          430,367         36,420          441,769        154,886         1,750,208
Shares reacquired           --              --              --              --            (2,868)          (32,554)
                          ------       ----------         ------       ----------        -------        ----------
  Net increase            75,010       $  960,900         46,379       $  562,768        154,087        $1,741,048
                          ======       ==========         ======       ==========        =======        ==========

<CAPTION>
Class A Shares
                     Period Ended August 31, 1996*
                     ---------------------------------------------------------------------------------------------
                                 Core Growth Fund              Equity Income Fund       Special Opportunities Fund
                     ---------------------------------------------------------------------------------------------
                          Shares           Amount         Shares           Amount         Shares            Amount
- ------------------------------------------------------------------------------------------------------------------
<S>                       <C>          <C>                <C>          <C>               <C>            <C>
Shares sold               56,000       $  605,756         44,072       $  449,397        198,828        $2,038,964
Shares issued to
  shareholders in
  reinvestment of
  distributions             --              --              --              --              --               --
Shares reacquired           (338)          (4,083)          (947)         (10,110)            (1)              (14)
                          ------       ----------         ------       ----------        -------        ----------
  Net increase            55,662       $  601,673         43,125       $  439,287        198,827        $2,038,950
                          ======       ==========         ======       ==========        =======        ==========

*For the period from the commencement of investment operations, January 2, 1996 to August 31, 1996.

<CAPTION>
Class A Shares
                     Period Ended February 28, 1997**
                     ---------------------------------------------------------------------------------------------
                                   Blue Chip Fund     Convertible Securities Fund               New Discovery Fund
                     ---------------------------------------------------------------------------------------------
                          Shares           Amount         Shares           Amount         Shares            Amount
- ------------------------------------------------------------------------------------------------------------------
<S>                       <C>          <C>                <C>          <C>                <C>           <C>       
Shares sold               43,894       $  440,505         50,431       $  504,346         37,384        $  375,933
Shares issued to
  shareholders in
  reinvestment of
  distributions             --              --              --              --              --               --
Shares reacquired           (121)          (1,301)           (78)            (801)          --                  (1)
                          ------       ----------         ------       ----------         ------        ----------
  Net increase            43,773       $  439,204         50,353       $  503,545         37,384        $  375,932
                          ======       ==========         ======       ==========         ======        ==========

<CAPTION>
Class A Shares
                     Period Ended February 28, 1997**
                     ------------------------------------------------------------
                      Research International Fund     Science and Technology Fund
                     ------------------------------------------------------------
                          Shares           Amount         Shares           Amount
- ---------------------------------------------------------------------------------
<S>                      <C>           <C>                <C>          <C>       
Shares sold              140,576       $1,402,992         57,447       $  583,734
Shares issued to
  shareholders in
  reinvestment of
  distributions             --              --              --              --
Shares reacquired            (15)            (150)          --                 (1)
                         -------       ----------         ------       ----------
  Net increase           140,561       $1,402,842         57,447       $  583,733
                         =======       ==========         ======       ==========

<CAPTION>
Class I Shares
                     Period Ended February 28, 1997**
                     ---------------------------------------------------------------------------------------------
                                   Blue Chip Fund     Convertible Securities Fund               New Discovery Fund
                     ---------------------------------------------------------------------------------------------
                          Shares           Amount         Shares           Amount         Shares            Amount
- ------------------------------------------------------------------------------------------------------------------
<S>                       <C>          <C>                 <C>          <C>              <C>           <C>         
Shares sold               16,449       $  164,485          4,271        $  42,715        136,603       $ 1,366,076
Shares issued to
  shareholders in
  reinvestment of
  distributions             --              --              --              --              --               --
Shares reacquired             (1)             (10)          --              --              --               --
                          ------       ----------          -----        ---------        -------       -----------
  Net increase            16,448       $  164,475          4,271        $  42,715        136,603       $ 1,366,076
                          ======       ==========          =====        =========        =======       ===========

<CAPTION>
Class I Shares
                     Period Ended February 28, 1997**
                     ------------------------------------------------------------
                      Research International Fund     Science and Technology Fund
                     ------------------------------------------------------------
                          Shares           Amount         Shares           Amount
- ---------------------------------------------------------------------------------
<S>                       <C>          <C>               <C>           <C>       
Shares sold               58,602       $  586,012        151,769       $1,517,969
Shares issued to
  shareholders in
  reinvestment of
  distributions             --              --              --              --
Shares reacquired             (1)             (10)          --              --
                          ------       ----------        -------       ----------
  Net increase            58,601       $  586,002        151,769       $1,517,969
                          ======       ==========        =======       ==========

**For the period from the commencement of investment operations, January 2, 1997
  to February 28, 1997.
</TABLE>

(6) Line of Credit
Each Fund entered into an agreement which enables it to participate with other
funds managed by MFS in an unsecured line of credit with a bank which permits
borrowings up to $400 million, collectively. Borrowings may be made to
temporarily finance the repurchase of Fund shares. Interest is charged to each
fund, based on its borrowings, at a rate equal to the bank's base rate. In
addition, a commitment fee, based on the average daily unused portion of the
line of credit, is allocated among the participating funds at the end of each
quarter. The commitment fee allocated to each Fund for the period ended February
28, 1997, were as follows:

<TABLE>
<CAPTION>
     Core          Equity         Special           Blue    Convertible            New        Research     Science and
   Growth          Income   Opportunities           Chip     Securities      Discovery   International      Technology
     Fund            Fund            Fund           Fund           Fund           Fund            Fund            Fund
- -----------------------------------------------------------------------------------------------------------------------
<S>   <C>             <C>             <C>           <C>             <C>           <C>              <C>             <C>
      $ 1             $ 1             $ 4           $ --            $ 1           $ --             $ 1             $ 1
</TABLE>

(7) Restricted Securities
Each Fund may invest not more than 15% of its net assets in securities which are
subject to legal or contractual restrictions on resale. At February 28, 1997,
the Research International Fund and the Special Opportunities Fund owned the
following restricted securities (consisting of 2.4% and 0.6% of their net
assets, respectively). Each Fund does not have the right to demand that such
securities be registered. The value of these securities is determined by
valuations supplied by a pricing service of brokers or, if not available, in
good faith by or at the direction of the Trustees.

<TABLE>
<CAPTION>
                                                   Date of
Fund/Description                               Acquisition            Shares              Cost             Value
- ------------------------------------------------------------------------------------------------------------------
<S>                                         <C>                       <C>              <C>               <C>    
MFS RESEARCH INTERNATIONAL FUND
Hong Leong Finance Ltd.                     1/7/97-2/26/97             3,000           $11,940           $11,579
Jarvis Hotels PLC                           1/7/97-2/26/97            12,322           $33,892           $35,561
                                                                                                         -------
                                                                                                         $47,140

MFS SPECIAL OPPORTUNITIES FUND
Renaissance Cosmetics, Inc.                         8/8/96                20           $20,000           $20,000
</TABLE>



                 --------------------------------------------
This report is prepared for the general information of shareholders. It is
authorized for distribution to prospective investors only when preceded or
accompanied by a current prospectus.

<PAGE>

MFS(R) CORE GROWTH FUND

MFS(R) EQUITY INCOME FUND

MFS(R) SPECIAL OPPORTUNITIES FUND

MFS(R) BLUE CHIP FUND

MFS(R) CONVERTIBLE SECURITIES FUND

MFS(R) NEW DISCOVERY FUND

MFS(R) RESEARCH INTERNATIONAL FUND

MFS(R) SCIENCE AND TECHNOLOGY FUND



500 Boylston Street
Boston, MA 02116-3741


[LOGO] M F S(SM)
INVESTMENT MANAGEMENT
  We invented the mutual fund(SM)


(C)1997 MFS Fund Distributors, Inc., 500 Boylston, Street Boston, MA 02116-3741
                                                                  INC-3-2/97/715


<PAGE>

                                      PART C



Item 24. Financial Statements and Exhibits
   
         MFS Blue Chip Fund, MFS New Discovery Fund, MFS Convertible Securities
         Fund, MFS Research International Fund and MFS Science and Technology 
         Fund
    
         (a)  Financial Statements Included in Parts A and B:

                Included in Part A of this Registration Statement:  
   
                   For the period ended February 28, 1997:
                     Financial Highlights (Unaudited)
    
                Included in Part B of this Registration Statement: 
   
                   At February 28, 1997:
                     Portfolio of Investments*
                     Statement of Assets and Liabilities (Unaudited)*
    
   
                   For the period ended February 28, 1997:
                     Statement of Changes in Net Assets (Unaudited)*
    
   
                   For the period ended February 28, 1997:
                     Statement of Operations (Unaudited)*
    
   
*     Incorporated by reference to the the Funds' Unaudited Semiannual Report to
      Shareholders  dated February 28, 1997, filed with the SEC via EDGAR on May
      2, 1997.
    
                  (b)      Exhibits:
   
                            1  (a)   Amended and Restated Declaration of Trust, 
                                     dated January 6, 1995.  (5)

                               (b)   Amendment to Declaration of Trust, dated 
                                     October 12, 1995.  (6)

                               (c)   Amendment to Declaration of Trust, dated 
                                     February 21, 1996.  (7)

                               (d)   Amendment to Declaration of Trust, dated 
                                     June 12, 1996.  (8)

                               (e)   Amendment to Declaration of Trust, dated 
                                     October 9, 1996.  (9)
    
<PAGE>
   
                               (f)   Amendment to  Declaration  of Trust,  dated
                                     December  19, 1996 to  redesignate  Class P
                                     Shares as Class I Shares; filed herewith.

                               (g)   Amendment to  Declaration  of Trust,  dated
                                     April 9, 1997 to redesignate MFS Aggressive
                                     Growth Fund as MFS  Strategic  Growth Fund;
                                     filed herewith.
    
   
                            2        Amended and Restated By-Laws dated December
                                     14, 1994.  (5)
    
                            3        Not Applicable.
   
                            4        Form of Share Certificate for Classes of 
                                     shares.  (8)

                            5  (a)   Investment Advisory Agreement for MFS(R) 
                                     Cash Reserve Fund, dated September 1,
                                     1993.  (6)

                               (b)   Investment Advisory Agreement for MFS(R) 
                                     Managed Sectors Fund, dated September
                                     1, 1993.  (6)

                               (c)   Investment Advisory Agreement for MFS(R) 
                                     World Asset Allocation Fund, dated June 2,
                                     1994.  (6)

                               (d)   Investment Advisory Agreement for MFS(R) 
                                     Equity Income Fund, dated January 2,
                                     1996.  (7)

                               (e)   Amendment to Investment  Advisory Agreement
                                     for MFS(R) Research Growth and Income Fund,
                                     dated January 2, 1997; filed herewith.

                               (f)   Investment Advisory Agreement for MFS(R) 
                                     Core Growth Fund, dated January 2, 1996.(6)

                               (g)   Investment Advisory Agreement for MFS(R) 
                                     Aggressive Growth Fund, dated January
                                     2, 1996.  (6)

                               (h)   Investment Advisory Agreement for MFS(R) 
                                     Special Opportunities Fund, dated
                                     January 2, 1996.  (6)

                               (i)   Investment  Advisory  Agreement  for MFS(R)
                                     Convertible  Securities Fund, dated January
                                     2, 1997; filed herewith.

                               (j)   Investment  Advisory  Agreement  for MFS(R)
                                     Blue Chip  Fund,  dated  January  2,  1997;
                                     filed herewith.

                               (k)   Investment  Advisory  Agreement  for MFS(R)
                                     New Discovery Fund,  dated January 2, 1997;
                                     filed herewith.
    
<PAGE>
   
                               (l)   Investment  Advisory  Agreement  for MFS(R)
                                     Science and Technology  Fund, dated January
                                     2, 1997; filed herewith.

                               (m)   Investment  Advisory  Agreement  for MFS(R)
                                     Research  International Fund, dated January
                                     2, 1997; filed herewith.

                               (n)   Sub-Advisory Agreement for MFS(R) Research 
                                     International Fund by and between
                                     Massachusetts Financial Services Company 
                                     and Foreign & Colonial Management Ltd. 
                                     dated January 2, 1997; filed herewith.

                               (o)   Sub-Advisory Agreement for MFS(R) Research 
                                     International Fund by and between Foreign &
                                     Colonial Management Ltd. and Foreign & 
                                     Colonial Emerging Markets Limited, dated 
                                     January 2, 1997; filed herewith.

                            6  (a)   Distribution Agreement, dated January 1, 
                                     1995.  (5)

                               (b)   Dealer Agreement between MFS Fund 
                                     Distributors, Inc., ("MFD") and a dealer
                                     and the Mutual Fund Agreement between MFD 
                                     and a bank or NASD affiliate, as amended 
                                     on April 11, 1997.  (12)

                            7        Retirement Plan for Non-Interested Person 
                                     Trustees, dated January 1, 1991. (6)

                            8  (a)   Custodian Agreement, dated January 28, 
                                     1988.  (6)

                               (b)   Amendment No. 1 to the Custodian Agreement,
                                     dated February 29, 1988 and October 1, 
                                     1989, respectively.  (6)

                               (c)   Amendment No. 2 to the Custodian Agreement,
                                     dated October 9, 1991.  (6)

                               (d)   Custodian Agreement between Investors Bank 
                                     & Trust and MFS(R) World Asset Allocation 
                                     Fund dated June 2, 1994.  (6)

                            9  (a)   Shareholder Servicing Agent Agreement, 
                                     dated September 10, 1986.  (6)

                               (b)   Amendment to  Shareholder  Servicing  Agent
                                     Agreement  to  amend  fee  schedule,  dated
                                     January 1, 1997; filed herewith.

                               (c)   Exchange Privilege Agreement, dated 
                                     September 1, 1995 as amended and restated 
                                     through and including January 1, 1997. (10)
    
<PAGE>
   
                               (d)   Loan Agreement by and among the Banks 
                                     named therein, the MFS Borrowers and The
                                     First National Bank of Boston dated as of 
                                     February 21, 1995.  (3)

                               (e)   Third  Amendment dated February 14, 1997 to
                                     Loan  Agreement  dated February 21, 1995 by
                                     and among the Banks  named  therein and The
                                     First   National  Bank  of  Boston;   filed
                                     herewith.

                               (f)   Dividend Disbursing Agent Agreement dated 
                                     September 10, 1986.  (6)

                               (g)   Master Administrative Services Agreement 
                                     dated March 1, 1997.  (11)
    
                           10        Consent and  Opinion of Counsel  filed with
                                     the Registrant's  Rule 24f-2 Notice for the
                                     fiscal  year  ended   August  31,  1996  on
                                     October 28, 1996.
   
                           11        Not Applicable.
    
                           12        Not Applicable.

                           13        Not Applicable.
   
                           14  (a)   Forms for Individual Retirement Account 
                                     Disclosure Statement as currently in
                                     effect.  (4)

                               (b)   Forms for MFS 403(b) Custodial Account 
                                     Agreement as currently in effect.  (4)

                               (c)   Forms for MFS Prototype Paired Defined 
                                     Contribution Plans as Trust Agreement as
                                     currently in effect.  (4)

                           15        Master Distribution Plan pursuant to Rule 
                                     12b-1 under the Investment Company Act of 
                                     1940 effective January 1, 1997 and amended 
                                     thereto on April 10, 1997.  (13)
    
                           16        Schedule for Computation of Performance 
                                     Quotations - Yield Calculation, Average 
                                     Annual and Aggregate Total Return and 
                                     Current Distribution Rate.  (1)
   
                           17        Financial Data Schedules for Class A Shares
                                     and Class I Shares  for MFS Blue Chip Fund,
                                     MFS New  Discovery  Fund,  MFS  Convertible
                                     Securities Fund, MFS Research International
                                     Fund and MFS Science and  Technology  Fund;
                                     filed herewith.

                           18        Plan pursuant to Rule 18f-3(d) under the 
                                     Investment Company Act of 1940.  (8)
    
<PAGE>
   
                           Power of Attorney, dated August 11, 1994.  (6)

(1)   Incorporated by reference to MFS Municipal Series Trust (File Nos. 2-92915
      and 811-4096) Post-Effective Amendment No. 26 filed with the SEC via EDGAR
      on February 22, 1995.
(2)   Incorporated by reference to MFS Municipal Series Trust (File Nos. 2-92915
      and 811-4096) Post-Effective Amendment No. 28 filed with the SEC via EDGAR
      on July 28, 1995.
(3)   Incorporated by reference to Post-Effective Amendment No. 8 on Form N-2 
      for MFS Municipal Income Trust (File No. 811-4841) filed with the SEC via 
      EDGAR on February 28, 1995.
(4)   Incorporated by reference to MFS Series Trust IX (File Nos. 2-50409 and 
      811-2464) Post-Effective Amendment No. 32 filed with the SEC via EDGAR on 
      August 28, 1995.
(5)   Incorporated by reference to the Registrant's Post-Effective Amendment No.
      20 filed with the SEC via EDGAR on March 30, 1995.
6)    Incorporated by reference to the Registrant's Post-Effective Amendment No.
      21 filed with the SEC via EDGAR on October 17, 1995.
(7)   Incorporated by reference to Registrant's Post-Effective Amendment No. 23
      filed with the SEC via EDGAR on March 29, 1996.
(8)   Incorporated by reference to Registrant's Post-Effective Amendment No. 25 
      filed with the SEC via EDGAR on August 27, 1996.
(9)   Incorporated by reference to Registrant's Post-Effective Amendment No. 26 
      filed with the SEC via EDGAR on October 15, 1996.
(10)  Incorporated by reference to MFS Series Trust VIII (File Nos. 33-37972 and
      811-5262) Post-Effective Amendment No. 13 filed with the SEC via EDGAR on 
      February 27, 1997.
(11)  Incorporated by reference to MFS/Sun Life Series Trust (File Nos. 2-83616 
      and 811-3732) Post-Effective Amendment No. 19 filed with the SEC via EDGAR
      on March 18, 1997.
(12)  Incorporated by reference to MFS Series Trust III (File Nos. 2-60491 and 
      811-2794) Post-Effective Amendment No. 24 filed with the SEC via EDGAR on 
      May 29, 1997.
(13)  Incorporated by reference to MFS Government Limited Maturity Fund (File 
      Nos. 2-96738 and 811-4253) Post-Effective Amendment No. 18 filed with the 
      SEC via EDGAR on April 29, 1997.
    

Item 25. Persons Controlled by or under Common Control with Registrant

         Not applicable.

Item 26. Number of Holders of Securities

         For MFS Managed Sectors Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest         21,279
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest         12,693
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest              2
                           (without par value)             (as of May 31, 1997)
    
<PAGE>

         For MFS Cash Reserve Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest          3,395
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest         23,607
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest            862
                           (without par value)             (as of May 31, 1997)
    
         For MFS World Asset Allocation Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest          7,667
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest         10,125
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest          1,948
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest              3
                           (without par value)             (as of May 31, 1997)
    
         For MFS Equity Income Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest             14
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest              0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest              0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest              3
                           (without par value)             (as of May 31, 1997)
    
<PAGE>
         For MFS Research Growth and Income Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest            37
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest             0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest             0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest             4
                           (without par value)             (as of May 31, 1997)
    
         For MFS Core Growth Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest            39
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest             0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest             0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest             3
                           (without par value)             (as of May 31, 1997)
    
         For MFS Aggressive Growth Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest           511
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest           199
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest        37,904
                           (without par value)             (as of May 31, 1997)
    
<PAGE>
   
                  Class I Shares of Beneficial Interest             3
                           (without par value)             (as of May 31, 1997)
    
         For MFS Special Opportunities Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest           28
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest            3
                           (without par value)             (as of May 31, 1997)
    
         MFS(R) Convertible Securities Fund

                                    (1)                         (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest            9
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest            4
                           (without par value)             (as of May 31, 1997)
    
         MFS(R) Blue Chip Fund

                                    (1)                         (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest           22
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)
    
<PAGE>
   
                  Class C Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest            4
                           (without par value)             (as of May 31, 1997)
    
         MFS(R) New Discovery Fund

                                    (1)                         (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest           28
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest            4
                           (without par value)             (as of May 31, 1997)
    
         MFS(R) Science and Technology Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest           33
                           (without par value)             (as of May 31, 1997)

                  Class B Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest            4
                           (without par value)             (as of May 31, 1997)
    
         MFS(R) Research International Fund

                                    (1)                          (2)
                           Title of Class               Number of Record Holders
   
                  Class A Shares of Beneficial Interest           37
                           (without par value)             (as of May 31, 1997)
    
<PAGE>
   
                  Class B Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class C Shares of Beneficial Interest            0
                           (without par value)             (as of May 31, 1997)

                  Class I Shares of Beneficial Interest            4
                           (without par value)             (as of May 31, 1997)
    
Item 27. Indemnification

         Reference  is  hereby  made to (a)  Article  V of the  Trust's
Declaration   of  Trust,   incorporated   by  reference   to  the   Registrant's
Post-Effective  Amendment  No. 20 filed with the SEC via EDGAR on March 30, 1995
and (b) Section 8 of the Shareholder Servicing Agent Agreement,  incorporated by
reference to Registrant's Post-Effective Amendment No. 21 filed with the SEC via
EDGAR on October 17, 1995.

         The Trustees and officers of the  Registrant and the personnel
of the  Registrant's  investment  adviser and principal  underwriter are insured
under an errors and omissions liability insurance policy. The Registrant and its
officers are also insured  under the fidelity  bond required by Rule 17g-1 under
the Investment Company Act of 1940, as amended.
   
Item 28. Business and Other Connections of Investment Adviser

         MFS serves as  investment  adviser to the  following  open-end
Funds  comprising  the MFS  Family  of  Funds:  Massachusetts  Investors  Trust,
Massachusetts  Investors Growth Stock Fund, MFS Growth  Opportunities  Fund, MFS
Government Securities Fund, MFS Government Limited Maturity Fund, The MFS Series
Trust (which has one series:  MFS Aggressive  Small Cap Equity Fund), MFS Series
Trust I (which has thirteen  series:  MFS Managed Sectors Fund, MFS Cash Reserve
Fund, MFS World Asset Allocation Fund, MFS Aggressive  Growth Fund, MFS Research
Growth and Income  Fund,  MFS Core Growth  Fund,  MFS Equity  Income  Fund,  MFS
Special Opportunities Fund, MFS Convertible Securities Fund, MFS Blue Chip Fund,
MFS New  Discovery  Fund,  MFS  Science  and  Technology  Fund and MFS  Research
International  Fund),  MFS Series Trust II (which has four series:  MFS Emerging
Growth Fund, MFS Capital Growth Fund, MFS Intermediate  Income Fund and MFS Gold
& Natural Resources Fund), MFS Series Trust III (which has two series:  MFS High
Income Fund and MFS Municipal High Income Fund),  MFS Series Trust IV (which has
four series:  MFS Money  Market  Fund,  MFS  Government  Money Market Fund,  MFS
Municipal Bond Fund and MFS OTC Fund), MFS Series Trust V (which has two series:
MFS Total  Return Fund and MFS  Research  Fund),  MFS Series Trust VI (which has
three  series:  MFS World Total Return Fund,  MFS  Utilities  Fund and MFS World
Equity Fund), MFS Series Trust VII (which has two series:  MFS World Governments
Fund and MFS Value  Fund),  MFS Series  Trust VIII  (which has two  series:  MFS
Strategic Income Fund and MFS World Growth Fund), MFS Series Trust IX (which has
three series: MFS Bond Fund, MFS Limited Maturity Fund and MFS Municipal Limited
Maturity  Fund),  MFS Series  Trust X (which  has four  series:  MFS  Government
Mortgage Fund,  MFS/Foreign & Colonial Emerging Markets Equity Fund, MFS/Foreign
& Colonial  International  Growth Fund and MFS/Foreign & Colonial  International
Growth and Income Fund),  and MFS  Municipal  Series Trust (which has 16 series:
MFS  Alabama  Municipal  Bond  Fund,  MFS
    
<PAGE>
   
Arkansas  Municipal Bond Fund,  MFS California  Municipal Bond Fund, MFS Florida
Municipal  Bond Fund, MFS Georgia  Municipal  Bond Fund, MFS Maryland  Municipal
Bond Fund, MFS Massachusetts Municipal Bond Fund, MFS Mississippi Municipal Bond
Fund, MFS New York Municipal Bond Fund, MFS North Carolina  Municipal Bond Fund,
MFS  Pennsylvania  Municipal Bond Fund, MFS South Carolina  Municipal Bond Fund,
MFS Tennessee  Municipal Bond Fund,  MFS Virginia  Municipal Bond Fund, MFS West
Virginia  Municipal Bond Fund and MFS Municipal  Income Fund) (the "MFS Funds").
The principal  business address of each of the MFS Funds is 500 Boylston Street,
Boston, Massachusetts 02116.

         MFS  also  serves  as  investment  adviser  of  the  following
no-load,  open-end Funds:  MFS  Institutional  Trust ("MFSIT")  (which has seven
series),  MFS Variable Insurance Trust ("MVI") (which has twelve series) and MFS
Union  Standard  Trust ("UST").  The principal  business  address of each of the
aforementioned funds is 500 Boylston Street, Boston, Massachusetts 02116.

         In addition, MFS serves as investment adviser to the following
closed-end funds: MFS Municipal Income Trust, MFS Multimarket  Income Trust, MFS
Government  Markets Income Trust,  MFS  Intermediate  Income Trust,  MFS Charter
Income  Trust and MFS Special  Value  Trust (the "MFS  Closed-End  Funds").  The
principal  business  address of each of the MFS Closed-End Funds is 500 Boylston
Street, Boston, Massachusetts 02116.

         Lastly,  MFS serves as  investment  adviser  to  MFS/Sun  Life
Series Trust  ("MFS/SL"),  Money Market  Variable  Account,  High Yield Variable
Account,  Capital Appreciation Variable Account,  Government Securities Variable
Account,  World Governments Variable Account,  Total Return Variable Account and
Managed Sectors Variable Account.  The principal business address of each of the
aforementioned   funds  is  One  Sun  Life  Executive  Park,   Wellesley  Hills,
Massachusetts 02181.

         MFS International  Ltd.  ("MIL"),  a limited liability company
organized  under the laws of Bermuda and a subsidiary  of MFS,  whose  principal
business address is Cedar House, 41 Cedar Avenue,  Hamilton HM12 Bermuda, serves
as investment  adviser to and  distributor for MFS American Funds (which has six
portfolios:  MFS  American  Funds-U.S.  Equity  Fund,  MFS  American  Funds-U.S.
Emerging Growth Fund, MFS American Funds-U.S. High Yield Bond Fund, MFS American
Funds - U.S. Dollar Reserve Fund, MFS American Funds-Charter Income Fund and MFS
American  Funds-U.S.  Research  Fund)  (the  "MIL  Funds").  The MIL  Funds  are
organized in Luxembourg and qualify as an undertaking for collective investments
in transferable  securities  (UCITS).  The principal business address of the MIL
Funds is 47, Boulevard Royal, L-2449 Luxembourg.

         MIL also serves as investment  adviser to and  distributor for
MFS Meridian U.S.  Government  Bond Fund, MFS Meridian  Charter Income Fund, MFS
Meridian  Global  Government  Fund, MFS Meridian U.S.  Emerging Growth Fund, MFS
Meridian  Global Equity Fund, MFS Meridian  Limited  Maturity Fund, MFS Meridian
World Growth  Fund,  MFS Meridian  Money Market Fund,  MFS Meridian  World Total
Return Fund,  MFS Meridian U.S.  Equity Fund,  MFS Meridian  Research  Fund, MFS
Meridian U.S. High Yield Fund and MFS Emerging  Markets Debt Fund  (collectively
the "MFS  Meridian  Funds").  Each of the MFS Meridian  Funds is organized as an
exempt  company under the laws of the Cayman  Islands.  The  principal  business
address of each of the MFS Meridian Funds is P.O. Box 309, Grand Cayman,  Cayman
Islands, British West Indies.
    
<PAGE>
   
         MFS International  (U.K.) Ltd.  ("MIL-UK"),  a private limited
company  registered  with the Registrar of Companies for England and Wales whose
current  address  is 4 John  Carpenter  Street,  London,  England  ED4Y 0NH,  is
involved primarily in marketing and investment  research activities with respect
to private clients and the MIL Funds and the MFS Meridian Funds.

         MFS Fund  Distributors,  Inc.  ("MFD"),  a wholly owned subsidiary of 
MFS, serves as distributor for the MFS Funds, MVI, UST and MFSIT.

         Clarendon Insurance Agency, Inc. ("CIAI"), a wholly owned subsidiary of
MFS,  serves as  distributor  for certain life  insurance and annuity  contracts
issued by Sun Life Assurance Company of Canada (U.S.).

         MFS Service Center,  Inc. ("MFSC"),  a wholly owned subsidiary of MFS, 
serves as  shareholder  servicing  agent to the MFS  Funds,  the MFS  Closed-End
Funds, MFSIT, MVI and UST.

         MFS Institutional Advisors, Inc. ("MFSI"), a wholly owned subsidiary of
MFS, provides investment advice to substantial private clients.

         MFS Retirement Services, Inc. ("RSI"), a wholly owned subsidiary of 
MFS,  markets MFS products to retirement plans and provides  administrative  and
record keeping services for retirement plans.

         MFS

         The Directors of MFS are A. Keith Brodkin,  Jeffrey L. Shames,  Arnold 
D. Scott, Donald A. Stewart and John D. McNeil. Mr. Brodkin is the Chairman, Mr.
Shames is the  President,  Mr. Scott is a Senior  Executive  Vice  President and
Secretary, Bruce C. Avery, William S. Harris, William W. Scott, Jr., Patricia A.
Zlotin, John W. Ballen,  Thomas J. Cashman, Jr., Joseph W. Dello Russo and Kevin
R. Parke are  Executive  Vice  Presidents,  Stephen  E.  Cavan is a Senior  Vice
President,  General  Counsel and an  Assistant  Secretary,  Robert T. Burns is a
Senior Vice President,  Associate General Counsel and an Assistant  Secretary of
MFS, and Thomas B. Hastings is a Vice President and Treasurer of MFS.

         Massachusetts Investors Trust
         Massachusetts Investors Growth Stock Fund
         MFS Growth Opportunities Fund
         MFS Government Securities Fund
         MFS Series Trust I
         MFS Series Trust V
         MFS Series Trust VI
         MFS Series Trust X
         MFS Government Limited Maturity Fund

         A. Keith Brodkin is the Chairman and President,  Stephen E. Cavan is 
the  Secretary,  W.  Thomas  London is the  Treasurer,  James O. Yost,  Ellen M.
Moynihan  and  Mark  
    
<PAGE>
   
E.  Bradley,  Vice  Presidents of MFS, are the  Assistant  Treasurers,  James R.
Bordewick,  Jr., Senior Vice President and Associate  General Counsel of MFS, is
the Assistant Secretary.

         MFS Series Trust II

         A. Keith Brodkin is the Chairman and President,  Leslie J. Nanberg,  
Senior  Vice  President  of MFS,  is a Vice  President,  Stephen E. Cavan is the
Secretary,  W. Thomas London is the Treasurer,  James O. Yost, Ellen M. Moynihan
and Mark E. Bradley are the Assistant Treasurers,  and James R. Bordewick,  Jr.,
is the Assistant Secretary.

         MFS Government Markets Income Trust
         MFS Intermediate Income Trust

         A. Keith Brodkin is the Chairman and President,  Leslie J. Nanberg,  
Senior  Vice  President  of MFS,  is a Vice  President,  Stephen E. Cavan is the
Secretary,  W. Thomas London is the Treasurer,  James O. Yost, Ellen M. Moynihan
and Mark E. Bradley are the Assistant Treasurers,  and James R. Bordewick,  Jr.,
is the Assistant Secretary.

         MFS Series Trust III

         A. Keith  Brodkin is the Chairman and  President,  James T.  Swanson,  
Robert  J.  Manning,  Cynthia  M.  Brown  and Joan S.  Batchelder,  Senior  Vice
Presidents  of MFS,  and Bernard  Scozzafava,  Vice  President  of MFS, are Vice
Presidents, Sheila Burns-Magnan,  Assistant Vice President of MFS, and Daniel E.
McManus, Vice President of MFS, are Assistant Vice Presidents,  Stephen E. Cavan
is the  Secretary,  W. Thomas London is the Treasurer,  James O. Yost,  Ellen M.
Moynihan  and  Mark E.  Bradley  are the  Assistant  Treasurers,  and  James  R.
Bordewick, Jr., is the Assistant Secretary.

         MFS Series Trust IV
         MFS Series Trust IX

         A. Keith Brodkin is the Chairman and President, Robert A. Dennis and 
Geoffrey  L.  Kurinsky,  Senior Vice  Presidents  of MFS,  are Vice  Presidents,
Stephen E. Cavan is the Secretary,  W. Thomas London is the Treasurer,  James O.
Yost,  Ellen M.  Moynihan and Mark E. Bradley are the Assistant  Treasurers  and
James R. Bordewick, Jr., is the Assistant Secretary.

         MFS Series Trust VII

         A. Keith Brodkin is the Chairman and President, Leslie J. Nanberg and
Stephen C. Bryant,  Senior Vice Presidents of MFS, are Vice Presidents,  Stephen
E. Cavan is the  Secretary,  W. Thomas London is the  Treasurer,  James O. Yost,
Ellen M. Moynihan and Mark E. Bradley are the Assistant  Treasurers and James R.
Bordewick, Jr., is the Assistant Secretary.

         MFS Series Trust VIII

         A. Keith  Brodkin is the Chairman and  President,  Jeffrey L. Shames,  
Leslie J. Nanberg,  Patricia A. Zlotin, James T. Swanson and John D. Laupheimer,
Jr.,  Vice  President  of 
    
<PAGE>
   
MFS, are Vice Presidents, Stephen E. Cavan is the Secretary, W. Thomas London is
the  Treasurer,  James O. Yost,  Ellen M.  Moynihan  and Mark E. Bradley are the
Assistant Treasurers and James R. Bordewick, Jr., is the Assistant Secretary.

         MFS Municipal Series Trust

         A. Keith Brodkin is the Chairman and  President,  Cynthia M. Brown and 
Robert A. Dennis are Vice Presidents,  David B. Smith, Geoffrey L. Schechter and
David R. King, Vice Presidents of MFS, are Vice  Presidents,  Daniel E. McManus,
Vice President of MFS, is an Assistant Vice  President,  Stephen E. Cavan is the
Secretary,  W. Thomas London is the Treasurer,  James O. Yost, Ellen M. Moynihan
and Mark E. Bradley are the Assistant Treasurers and James R. Bordewick, Jr., is
the Assistant Secretary.

         MFS Variable Insurance Trust
         MFS Union Standard Trust
         MFS Institutional Trust

         A. Keith Brodkin is the Chairman and President, Stephen E. Cavan is the
Secretary,  W. Thomas  London is the  Treasurer,  James O. Yost is the Assistant
Treasurer and James R. Bordewick, Jr., is the Assistant Secretary.

         MFS Municipal Income Trust

         A. Keith Brodkin is the Chairman and  President,  Cynthia M. Brown and 
Robert J. Manning are Vice  Presidents,  Stephen E. Cavan is the  Secretary,  W.
Thomas  London is the  Treasurer,  James O. Yost,  Ellen M. Moynihan and Mark E.
Bradley  are the  Assistant  Treasurers  and  James R.  Bordewick,  Jr.,  is the
Assistant Secretary.

         MFS Multimarket Income Trust
         MFS Charter Income Trust

         A. Keith Brodkin is the Chairman and  President,  Leslie J. Nanberg and
James T.  Swanson are Vice  Presidents,  Stephen E. Cavan is the  Secretary,  W.
Thomas  London is the  Treasurer,  James O. Yost,  Ellen M. Moynihan and Mark E.
Bradley  are the  Assistant  Treasurers  and  James R.  Bordewick,  Jr.,  is the
Assistant Secretary.

         MFS Special Value Trust

         A. Keith Brodkin is the Chairman and President,  Jeffrey L. Shames and
Robert J. Manning are Vice  Presidents,  Stephen E. Cavan is the  Secretary,  W.
Thomas  London is the  Treasurer,  James O. Yost,  Ellen M. Moynihan and Mark E.
Bradley  are the  Assistant  Treasurers  and  James R.  Bordewick,  Jr.,  is the
Assistant Secretary.

         MFS/Sun Life Series Trust

         John D. McNeil,  Chairman and Director of Sun Life Assurance  Company
of Canada, is the Chairman,  Stephen E. Cavan is the Secretary, W. Thomas London
is the Treasurer,  James O. Yost,  Ellen M. Moynihan and Mark E. Bradley are the
Assistant Treasurers and James R. Bordewick, Jr., is the Assistant Secretary.
    
<PAGE>
   
         Money Market Variable Account
         High Yield Variable Account
         Capital Appreciation Variable Account
         Government Securities Variable Account
         Total Return Variable Account
         World Governments Variable Account
         Managed Sectors Variable Account

         John D. McNeil is the Chairman,  Stephen E. Cavan is the Secretary, and
James R. Bordewick, Jr., is the Assistant Secretary.

         MIL

         A. Keith Brodkin is a Director and the Chairman,  Arnold D. Scott and 
Jeffrey L. Shames are  Directors,  Thomas J.  Cashman,  Jr., an  Executive  Vice
President  of MFS, is a Senior Vice  President,  Stephen E. Cavan is a Director,
Senior Vice President and the Clerk, James R. Bordewick, Jr. is a Director, Vice
President and an Assistant Clerk,  Robert T. Burns is an Assistant Clerk, Joseph
W. Dello Russo,  Executive Vice President and Chief Financial Officer of MFS, is
the Treasurer and Thomas B. Hastings is the Assistant Treasurer.

         MIL-UK

         A. Keith  Brodkin is a Director and the  Chairman,  Arnold D. Scott,  
Jeffrey L. Shames, and James R. Bordewick, Jr., are Directors,  Stephen E. Cavan
is a Director and the Secretary,  James E. Russell is the Treasurer,  and Robert
T. Burns is the Assistant Secretary.

         MIL Funds

         A. Keith Brodkin is the Chairman,  President and a Director, Richard B.
Bailey,  John A.  Brindle,  Richard  W. S.  Baker  and  William  F.  Waters  are
Directors, Stephen E. Cavan is the Secretary, W. Thomas London is the Treasurer,
James O. Yost is the  Assistant  Treasurer and James R.  Bordewick,  Jr., is the
Assistant Secretary.

         MFS Meridian Funds

         A. Keith Brodkin is the Chairman,  President and a Director, Richard B.
Bailey, John A. Brindle, Richard W. S. Baker, Arnold D. Scott, Jeffrey L. Shames
and  William F.  Waters are  Directors,  Stephen E. Cavan is the  Secretary,  W.
Thomas  London is the  Treasurer,  James R.  Bordewick,  Jr.,  is the  Assistant
Secretary and James O. Yost is the Assistant Treasurer.

         MFD

         A. Keith Brodkin is the Chairman and a Director,  Arnold D. Scott and 
Jeffrey L. Shames are  Directors,  William W.  Scott,  Jr.,  an  Executive  Vice
President of MFS, is the President, Stephen E. Cavan is the Secretary, Robert T.
Burns is the Assistant  Secretary,  Joseph W. Dello Russo is the Treasurer,  and
Thomas B. Hastings is the Assistant Treasurer.
    
<PAGE>
   
         CIAI

         A. Keith Brodkin is the Chairman and a Director,  Arnold D. Scott and 
Jeffrey L. Shames are Directors,  Cynthia Orcott is President, Bruce C. Avery is
the Vice President,  Joseph W. Dello Russo is the Treasurer,  Thomas B. Hastings
is the Assistant  Treasurer,  Stephen E. Cavan is the  Secretary,  and Robert T.
Burns is the Assistant Secretary.

         MFSC

         A. Keith Brodkin is the Chairman and a Director,  Arnold D. Scott and 
Jeffrey L. Shames are Directors,  Joseph A. Recomendes,  a Senior Vice President
of MFS, is Vice Chairman and a Director, Janet A. Clifford is the Executive Vice
President,  Joseph W. Dello Russo is the  Treasurer,  Thomas B.  Hastings is the
Assistant Treasurer,  Stephen E. Cavan is the Secretary,  and Robert T. Burns is
the Assistant Secretary.

         MFSI

         A. Keith Brodkin is the Chairman and a Director, Jeffrey L. Shames, and
Arnold D. Scott are  Directors,  Thomas J. Cashman,  Jr., is the President and a
Director,  Leslie J. Nanberg is a Senior Vice President, a Managing Director and
a Director,  George F. Bennett,  Carol A. Corley, John A. Gee, Brianne Grady and
Kevin R. Parke  (who is an  Executive  Vice  President  of MFS) are Senior  Vice
Presidents  and  Managing  Directors,  Joseph W. Dello  Russo is the  Treasurer,
Thomas B.  Hastings  is the  Assistant  Treasurer  and  Robert  T.  Burns is the
Secretary.

         RSI

         William W. Scott,  Jr. and Bruce C. Avery are Directors,  Arnold D. 
Scott is the  Chairman and a Director,  Joseph W. Dello Russo is the  Treasurer,
Thomas  B.  Hastings  is  the  Assistant  Treasurer,  Stephen  E.  Cavan  is the
Secretary, Robert T. Burns is the Assistant Secretary and Sharon A. Brovelli and
Martin E. Beaulieu are Senior Vice Presidents.

         In addition,  the following persons,  Directors or officers of
MFS, have the affiliations indicated:

         A. Keith Brodkin          Director, Sun Life Assurance Company of 
                                   Canada (U.S.), One Sun Life Executive Park, 
                                   Wellesley Hills, Massachusetts
                                   Director, Sun Life Insurance and Annuity 
                                   Company of New York, 67 Broad Street, New 
                                   York, New York

         Donald A. Stewart         President and a Director, Sun Life Assurance
                                   Company of Canada, Sun Life Centre, 150
                                   King Street West, Toronto, Ontario, Canada
                                   (Mr. Stewart is also an officer and/or
                                   Director of various subsidiaries and 
                                   affiliates of Sun Life)
    
<PAGE>
   
         John D. McNeil            Chairman, Sun Life Assurance Company of 
                                   Canada, Sun Life Centre, 150 King Street 
                                   West, Toronto, Ontario, Canada (Mr. McNeil is
                                   also an officer and/or Director of various
                                   subsidiaries and affiliates of Sun Life)

         Joseph W. Dello Russo     Director of Mutual Fund Operations, The 
                                   Boston Company, Exchange Place, Boston, 
                                   Massachusetts (until August, 1994)
    
Item 29. Distributors

         (a)  Reference is hereby made to Item 28 above.

         (b)  Reference is hereby made to Item 28 above;  the principal
business  address  of each of these  persons  is 500  Boylston  Street,  Boston,
Massachusetts 02116.

         (c)  Not Applicable.

Item 30. Location of Accounts and Records

         The accounts  and records of the  Registrant  are located,  in
whole or in part, at the office of the Registrant and the following locations:

                     NAME                                     ADDRESS

          Massachusetts Financial Services              500 Boylston Street
            Company (investment adviser)                Boston, MA  02116

          MFS Fund Distributors, Inc.                   500 Boylston Street
            (distributor)                               Boston, MA  02116

          State Street Bank and Trust Company           State Street South
            (custodian)                                 5-West
                                                        North Quincy, MA  02171

          Investors Bank & Trust Company                89 South Street
            (custodian)                                 Boston, MA  02111

          MFS Service Center, Inc.                      500 Boylston Street
            (transfer agent)                            Boston, MA  02116

Item 31. Management Services

         Not applicable.

Item 32. Undertakings

         (a)  Not applicable.
<PAGE>
         (b)  With respect to MFS(R) Convertible Securities Fund, MFS(R)
Blue Chip Fund,  MFS(R) New Discovery  Fund,  MFS(R) Science and Technology Fund
and MFS(R)  Research  International  Fund, the registrant  undertakes to file an
Amendment to the Registration Statement with financial statements which need not
be  certified,  within  four  to six  months  from  the  effective  date of this
Post-Effective  Amendment or the  commencement of investment  operations of such
Funds.

         (c)  The registrant undertakes to furnish each person to whom a
prospectus  is  delivered a copy of the  Registrant's  latest  annual  report to
Shareholders upon request and without a charge.

         (d)  Insofar as indemnification for liability arising under the
Securities  Act of 1933 may be permitted to trustees,  officers and  controlling
persons of the  Registrant  pursuant to the  provisions  set forth in Item 27 of
this Part C, or otherwise,  the  Registrant has been advised that in the opinion
of the Securities and Exchange Commission such indemnification is against public
policy as expressed in the Act and is,  therefore,  unenforceable.  In the event
that a claim  for  indemnification  against  such  liabilities  (other  than the
payment by the Registrant of expenses incurred or paid by a trustee,  officer or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the Securities being registered,  the Registrant will, unless
in the  opinion  of its  counsel  the matter  has been  settled  by  controlling
precedent,  submit to a court of appropriate  jurisdiction  the question whether
such  indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.
<PAGE>

                                        SIGNATURES


      Pursuant  to the  requirements  of the  Securities  Act of  1933  and  the
Investment  Company Act of 1940, the  Registrant  certifies that it meets all of
the requirements for  effectiveness of this Registration  Statement  pursuant to
Rule  485(b)  under  the  Securities  Act of  1933  and  has  duly  caused  this
Post-Effective  Amendment  to the  Registration  Statement  to be  signed on its
behalf by the undersigned,  thereto duly  authorized,  in the City of Boston and
The Commonwealth of Massachusetts on the 19th day of June 1997.

                                                 MFS SERIES TRUST I


                                                 By:     JAMES R. BORDEWICK, JR.
                                                 Name:   James R. Bordewick, Jr.
                                                 Title:  Assistant Secretary

      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  this
Post-Effective  Amendment to its Registration Statement has been signed below by
the following persons in the capacities indicated on June 19, 1997.


      SIGNATURE                                      TITLE


A. KEITH BRODKIN*                        Chairman, President (Principal
A. Keith Brodkin                         Executive Officer) and Trustee


W. THOMAS LONDON*                        Treasurer (Principal Financial Officer
W. Thomas London                         and Principal Accounting Officer)


RICHARD B. BAILEY*                       Trustee
Richard B. Bailey


MARSHALL N. COHAN*                       Trustee
Marshall N. Cohan


LAWRENCE H. COHN, M.D.*                  Trustee
Lawrence H. Cohn, M.D.




<PAGE>


SIR J. DAVID GIBBONS*                    Trustee
Sir J. David Gibbons


ABBY M. O'NEILL*                         Trustee
Abby M. O'Neill


WALTER E. ROBB, III*                     Trustee
Walter E. Robb, III


ARNOLD D. SCOTT*                         Trustee
Arnold D. Scott


JEFFREY L. SHAMES*                       Trustee
Jeffrey L. Shames


J. DALE SHERRATT*                        Trustee
J. Dale Sherratt


WARD SMITH*                              Trustee
Ward Smith


                                                 *By:   JAMES R. BORDEWICK, JR.
                                                  Name: James R. Bordewick, Jr.
                                                         as Attorney-in-fact

                                         Executed by James R. Bordewick, Jr. on
                                         behalf of those indicated pursuant to a
                                         Power of Attorney dated
                                         August 11, 1994, incorporated by
                                         reference to Registrant's Post-
                                         Effective Amendment No. 21 filed with 
                                         the SEC via EDGAR on October 17, 1995.
<PAGE>


                                 INDEX TO EXHIBITS

EXHIBIT NO.                DESCRIPTION OF EXHIBIT                   PAGE NO.

  1 (f)          Amendment to Declaration of Trust, dated 
                  December 19, 1996 to redesignate Class P Shares
                  as Class I Shares.

    (g)          Amendment to Declaration of Trust, dated April 9,
                  1997 to redesignate MFS Aggressive Growth Fund as
                  MFS Strategic Growth Fund.

  5 (e)          Amendment to Investment Advisory Agreement for 
                  MFS(R) Research Growth and Income Fund, dated 
                  January 2, 1997.

    (i)          Investment Advisory Agreement for MFS(R) 
                  Convertible Securities Fund, dated January 2, 1997.

    (j)          Investment Advisory Agreement for MFS(R) Blue 
                  Chip Fund, dated January 2, 1997.

    (k)          Investment Advisory Agreement for MFS(R) New 
                  Discovery Fund, dated January 2, 1997.

    (l)          Investment Advisory Agreement for MFS(R) 
                   Science and Technology Fund, dated January 2, 1997.

    (m)          Investment Advisory Agreement for MFS(R) 
                  Research International Fund, dated January 2, 1997.

    (n)          Sub-Advisory Agreement for MFS(R) Research 
                  International Fund by and between Massachusetts 
                  Financial Services Company and Foreign & 
                  Colonial Management Ltd. dated January 2, 1997.

    (o)          Sub-Advisory Agreement for MFS(R) Research 
                  International Fund by and between Foreign & 
                  Colonial Management Ltd. and Foreign &
                  Colonial Emerging Markets Limited, dated January 2, 1997.


<PAGE>


EXHIBIT NO.                DESCRIPTION OF EXHIBIT                   PAGE NO.

 9  (b)          Amendment to Shareholder Servicing Agent 
                  Agreement to amend fee schedule, dated 
                  January 1, 1997.

    (e)          Third Amendment dated February 14, 1997 to Loan
                  Agreement  dated as of  February  21,  1995 by and
                  among  the  Banks  named  therein  and  The  First
                  National Bank of Boston.

17               Financial Data Schedules for Class A Shares 
                  and Class I Shares for MFS Blue Chip Fund, MFS 
                  New Discovery Fund, MFS Convertible Securities 
                  Fund, MFS Research International Fund
                  and MFS Science and Technology Fund.

<PAGE>
                                                            EXHIBIT NO. 99.1(f)


                               MFS SERIES TRUST I

                           CERTIFICATION OF AMENDMENT
                           TO THE DECLARATION OF TRUST

                                  REDESIGNATION
                        OF CLASS P SHARES AS CLASS I SHARES


         The undersigned, being a majority of the Trustees of MFS Series Trust I
(the "Trust"),  a business trust organized under the laws of The Commonwealth of
Massachusetts  pursuant to an Amended and  Restated  Declaration  of Trust dated
January 6, 1995 as amended (the "Declaration"),  acting pursuant to Section 6.10
of the Declaration,  do hereby  redesignate the shares previously  designated as
Class P shares of each series of the Trust as Class I shares.

      IN WITNESS WHEREOF,  a majority of the Trustees of the Trust have executed
this  amendment,  in  one  or  more  counterparts,  all  constituting  a  single
instrument, as an instrument under seal in The Commonwealth of Massachusetts, as
of this 11th day of December, 1996.



A. KEITH BRODKIN                                     WALTER E. ROBB, III
A. Keith Brodkin                                     Walter E. Robb, III
76 Farm Road                                         35 Farm Road
Sherborn, MA  01770                                  Sherborn,  MA  01770



RICHARD B. BAILEY                                    ARNOLD D. SCOTT
Richard B. Bailey                                    Arnold D. Scott
63 Atlantic Avenue                                   20 Rowes Wharf
Boston,  MA  02110                                   Boston, MA  02110



MARSHALL N. COHAN                                    JEFFREY L. SHAMES
Marshall N. Cohan                                    Jeffrey L. Shames
2524 Bedford Mews Drive                              60 Brookside Road
Wellington,  FL  33414                               Needham, MA  02192



LAWRENCE H. COHN                                     J. DALE SHERRATT
Lawrence H. Cohn                                     J. Dale Sherratt
45 Singletree Road                                   86 Farm Road
Chestnut Hill,  MA  02167                            Sherborn, MA  01770
<PAGE>



SIR J. DAVID GIBBONS                                 WARD SMITH
Sir J. David Gibbons                                 Ward Smith
"Leeward"                                            36080 Shaker Blvd
5 Leeside Drive                                      Hunting Valley, OH 44022
"Point Shares"
Pembroke,  Bermuda  HM  05



ABBY M. O'NEILL
Abby M. O'Neill
200 Sunset Road
Oyster Bay,  NY  11771

<PAGE>
                                                           EXHIBIT NO. 99.1(g)


                             MFS SERIES TRUST I


                          CERTIFICATION OF AMENDMENT
                          TO THE DECLARATION OF TRUST

                            REDESIGNATION OF SERIES


         The undersigned, being a majority of the Trustees of MFS Series Trust I
(the "Trust"),  a business trust organized under the laws of The Commonwealth of
Massachusetts,  pursuant  to Section  6.9 and 9.3 of the  Amended  and  Restated
Declaration  of Trust dated  January 6, 1995,  as amended  (the  "Declaration"),
hereby  redesignate an existing series of Shares (as defined in the Declaration)
as follows:

                  The series  designated as MFS Aggressive  Growth Fund shall be
                  redesignated as MFS Strategic Growth Fund.

           IN WITNESS  WHEREOF,  a majority  of the  Trustees  of the Trust have
executed this  certificate of amendment to the  Declaration of Trust,  in one or
more counterparts,  all constituting a single instrument, as an instrument under
seal in The Commonwealth of Massachusetts, as of this 9th day of April, 1997.


                                                      WALTER E. ROBB, III
A. Keith Brodkin                                      Walter E. Robb, III
76 Farm Road                                          35 Farm Road
Sherborn, MA  01770                                   Sherborn,  MA  01770



RICHARD B. BAILEY                                     ARNOLD D. SCOTT
Richard B. Bailey                                     Arnold D. Scott
63 Atlantic Avenue                                    20 Rowes Wharf
Boston,  MA  02110                                    Boston, MA  02110



MARSHALL N. COHAN                                     JEFFREY L. SHAMES
Marshall N. Cohan                                     Jeffrey L. Shames
2524 Bedford Mews Drive                               38 Lake Avenue
Wellington,  FL  33414                                Newton, MA  02159
<PAGE>

LAWRENCE H. COHN                                      J. DALE SHERRATT
Lawrence H. Cohn                                      J. Dale Sherratt
45 Singletree Road                                    86 Farm Road
Chestnut Hill,  MA  02167                             Sherborn, MA  01770



SIR J. DAVID GIBBONS                                  WARD SMITH
Sir J. David Gibbons                                  Ward Smith
"Leeward"                                             36080 Shaker Blvd
5 Leeside Drive                                       Hunting Valley, OH 44022
"Point Shares"
Pembroke,  Bermuda  HM  05



ABBY M. O'NEILL
Abby M. O'Neill
200 Sunset Road
Oyster Bay,  NY  11771

<PAGE>
                                                            EXHIBIT NO. 99.5(e)


                            AMENDMENT TO INVESTMENT
                              ADVISORY AGREEMENT


AMENDMENT dated as of January 2, 1997 to the Investment Advisory Agreement dated
January 2, 1996 by and between MFS Series Trust I (the "Trust") on behalf of MFS
Research  Growth  and  Income  Fund (the  "Fund"),  a series of the  Trust,  and
Massachusetts Financial Services Company, a Delaware corporation (the "Adviser")
(the "Agreement").

                                                    WITNESSETH

WHEREAS, the Trust on behalf of the Fund has entered into the Agreement with the
Adviser; and

WHEREAS, MFS has agreed to amend the Agreement as provided below;

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

     1. Amendment of the Agreement:  Effective as of the date hereof,  the first
sentence of Article 3 of the  Agreement  is deleted and replaced in its entirety
as follows:

                  "For the services to be rendered and the facilities  provided,
                  the Fund shall pay to the Adviser an  investment  advisory fee
                  computed  and paid  monthly  in an amount  equal to the sum of
                  0.65% of the first $500  million of the Fund's  average  daily
                  net assets and 0.55% of the amount in excess of $500  million,
                  in  each  case  on  an   annualized   basis  for  the   Fund's
                  then-current fiscal year."

     2.  Miscellaneous:  Except as set forth in this  Amendment,  the  Agreement
shall remain in full force and effect, without amendment or modification.

     3.  Prior  Amendments:  This  Amendment  supersedes  any and  all  previous
amendments to the Agreement.

     4. Limitation of Liability of the Trustees and Shareholders:  A copy of the
Trust's  Declaration  of Trust is on file  with  the  Secretary  of State of The
Commonwealth  of  Massachusetts.   The  parties  hereto   acknowledge  that  the
obligations of or arising out of this instrument are not binding upon any of the
Trust's trustees, officers, employees, agents or shareholders individually,  but
are binding solely upon the assets and property of the Trust in accordance  with
its  proportionate  interest  hereunder.  If this  instrument is executed by the
Trust  on  behalf  of one or  more  series  of the  Trust,  the  parties  hereto
acknowledge  that the assets  and  liabilities  of each  series of the Trust are
separate  and  distinct  and  that the  obligations  of or  arising  out of this
instrument are binding solely upon
<PAGE>

the assets or property of the series on whose behalf the Trust has executed this
instrument. If the Trust has executed this instrument on behalf of more than one
series of the Trust,  the parties hereto also agree that the obligations of each
series  hereunder  shall  be  several  and not  joint,  in  accordance  with its
proportionate  interest  hereunder,  and the parties hereto agree not to proceed
against any series for the obligations of another series.

IN WITNESS  WHEREOF,  the parties have caused this Amendment to the Agreement to
be executed and  delivered in the names and on their behalf by the  undersigned,
therewith duly authorized, all as of the day and year first above written.



                                       MFS SERIES TRUST I,
                                       on behalf of MFS RESEARCH GROWTH 
                                       AND INCOME FUND


                                       By:    A. KEITH BRODKIN
                                              A. Keith Brodkin
                                              Chairman



                                       MASSACHUSETTS FINANCIAL SERVICES COMPANY


                                       By:    ARNOLD D. SCOTT
                                              Arnold D. Scott
                                              Senior Executive Vice President


<PAGE>
                                                            EXHIBIT NO. 99.5(i)


                             INVESTMENT ADVISORY AGREEMENT



         INVESTMENT ADVISORY AGREEMENT,  dated this 2nd day of January, 1997, by
and between MFS SERIES TRUST I, a Massachusetts business trust (the "Trust"), on
behalf of MFS CONVERTIBLE  SECURITIES  FUND, a series of the Trust (the "Fund"),
and  MASSACHUSETTS  FINANCIAL  SERVICES  COMPANY,  a Delaware  corporation  (the
"Adviser").

                                                    WITNESSETH:

         WHEREAS,  the Trust is engaged in business  as an  open-end  investment
company registered under the Investment Company Act of 1940; and

         WHEREAS, the Adviser is willing to provide business services to the
Fund on the terms and  conditions hereinafter set forth;

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

         Article 1. Duties of the Adviser.  The Adviser  shall  provide the Fund
with such investment  advice and supervision as the latter may from time to time
consider  necessary for the proper  supervision of its funds.  The Adviser shall
act as Adviser to the Fund and as such shall furnish  continuously an investment
program  and  shall  determine  from  time  to time  what  securities  shall  be
purchased, sold or exchanged and what portion of the assets of the Fund shall be
held  uninvested,  subject always to the restrictions of the Trust's Amended and
Restated  Declaration  of Trust,  dated  January 6, 1995,  and By-Laws,  each as
amended from time to time  (respectively,  the "Declaration" and the "By-Laws"),
to  the  provisions  of the  Investment  Company  Act of  1940  and  the  Rules,
Regulations and orders thereunder and to the Fund's then-current  Prospectus and
Statement of Additional Information. The Adviser shall also make recommendations
as to the manner in which voting rights,  rights to consent to corporate  action
and any other rights  pertaining  to the Fund's  portfolio  securities  shall be
exercised.  Should  the  Trustees  at  any  time,  however,  make  any  definite
determination  as to the  investment  policy and notify the  Adviser  thereof in
writing,  the Adviser shall be bound by such  determination  for the period,  if
any,   specified  in  such  notice  or  until   similarly   notified  that  such
determination  shall be revoked.  The Adviser shall take, on behalf of the Fund,
all actions  which it deems  necessary  to  implement  the  investment  policies
determined  as provided  above,  and in  particular  to place all orders for the
purchase or sale of portfolio  securities for the Fund's account with brokers or
dealers  selected by it, and to that end, the Adviser is authorized as the agent
of the  Fund  to  give  instructions  to the  Custodian  of the  Fund  as to the
deliveries  of  securities  and payments of cash for the account of the Fund. In
connection with the selection of such brokers or dealers and the placing of such
orders,  the  Adviser is  directed  to seek for the Fund  execution  at the most
reasonable  price  by  responsible  brokerage  firms at  reasonably  competitive
commission  rates.  In  fulfilling  this  requirement,  the Adviser shall
<PAGE>
not be deemed to have acted unlawfully or to have breached any duty,  created by
this  Agreement or otherwise,  solely by reason of its having caused the Fund to
pay a broker  or  dealer an amount of  commission  for  effecting  a  securities
transaction in excess of the amount of commission another broker or dealer would
have charged for effecting that transaction,  if the Adviser  determined in good
faith that such amount of commission  was reasonable in relation to the value of
the brokerage and research services provided by such broker or dealer, viewed in
terms  of  either  that   particular   transaction  or  the  Adviser's   overall
responsibilities with respect to the Fund and to other clients of the Adviser as
to which the Adviser exercises investment discretion.

The Adviser may from time to time enter into sub-investment  advisory agreements
with one or more  investment  advisers  with such  terms and  conditions  as the
Adviser may determine,  provided that such  sub-investment  advisory  agreements
have been approved in accordance  with  applicable  provisions of the Investment
Company Act of 1940.  Subject to the  provisions of Article 6, the Adviser shall
not be liable for any error of judgment or mistake of law by any  sub-adviser or
for any loss arising out of any  investment  made by any  sub-adviser or for any
act or omission in the execution and management of the Fund by any sub-adviser.

         Article 2.  Allocation  of Charges  and  Expenses.  The  Adviser  shall
furnish at its own expense  investment  advisory  and  administrative  services,
office  space,  equipment  and clerical  personnel  necessary  for servicing the
investments  of the  Fund  and  maintaining  its  organization,  and  investment
advisory  facilities  and executive and  supervisory  personnel for managing the
investments  and effecting the portfolio  transactions  of the Fund. The Adviser
shall arrange, if desired by the Trust, for Directors, officers and employees of
the  Adviser  to serve as  Trustees,  officers  or  agents  of the Trust if duly
elected or appointed to such positions and subject to their  individual  consent
and to any  limitations  imposed by law. It is understood that the Fund will pay
all of its own expenses inclu ding, without limitation, compensation of Trustees
"not affiliated" with the Adviser;  governmental fees; interest charges;  taxes;
membership dues in the Investment Company Institute  allocable to the Fund; fees
and expenses of  independent  auditors,  of legal  counsel,  and of any transfer
agent,  registrar  or  dividend  disbursing  agent  of  the  Fund;  expenses  of
repurchasing and redeeming shares and servicing shareholder  accounts;  expenses
of preparing,  printing and mailing  stock  certificates,  shareholder  reports,
notices,  proxy statements and reports to governmental officers and commissions;
brokerage  and  other  expenses  connected  with the  execution,  recording  and
settlement of portfolio  security  transactions;  insurance  premiums;  fees and
expenses of the custodian for all services to the Fund, including safekeeping of
funds and securities and  maintaining  required books and accounts;  expenses of
calculating the net asset value of shares of the Fund; expenses of shareholders'
meetings; and expenses relating to the issuance,  registration and qualification
of shares of the Fund and the preparation,  printing and mailing of prospectuses
for such purposes (except to the extent that any Distribution Agreement to which
the Trust is a party  provides  that another party is to pay some or all of such
expenses).

         Article 3. Compensation of the Adviser. For the services to be rendered
and the  facilities  provided,  the Fund shall pay to the Adviser an  investment
advisory  fee  computed and paid monthly at an annual rate equal to 0.65% of the
Fund's average daily net assets for its then-current fiscal year. If the Adviser
shall serve for less than the whole of any period  specified  in this Article 3,
the compensation to the Adviser will be prorated.
<PAGE>

         Article 4. Special Services.. Should the Trust have occasion to request
the  Adviser  to perform  services  not herein  contemplated  or to request  the
Adviser to arrange  for the  services of others,  the  Adviser  will act for the
Trust on  behalf  of the Fund  upon  request  to the best of its  ability,  with
compensation  for the Adviser's  services to be agreed upon with respect to each
such occasion as it arises.

         Article 5.  Covenants of the Adviser.  The Adviser  agrees that it will
not  deal  with  itself,  or with  the  Trustees  of the  Trust  or the  Trust's
distributor, if any, as principals in making purchases or sales of securities or
other  property  for  the  account  of the  Fund,  except  as  permitted  by the
Investment Company Act of 1940 and the Rules,  Regulations or orders thereunder,
will not take a long or short  position  in the  shares  of the Fund  except  as
permitted by the  Declaration,  and will comply with all other provisions of the
Declaration  and the By-Laws and the  then-current  Prospectus  and Statement of
Additional Information of the Fund relative to the Adviser and its Directors and
officers.

         Article 6.  Limitation  of Liability of the Adviser.  The Adviser shall
not be  liable  for any  error of  judgment  or  mistake  of law or for any loss
arising out of any  investment  or for any act or omission in the  execution and
management  of the Fund,  except  for  willful  misfeasance,  bad faith or gross
negligence in the performance of its duties and obligations  hereunder.  As used
in this Article 6, the term  "Adviser"  shall  include  Directors,  officers and
employees of the Adviser as well as that corporation itself.

         Article 7.  Activities  of the Adviser.  The services of the Adviser to
the Fund are not  deemed  to be  exclusive,  the  Adviser  being  free to render
investment  advisory  and/or  other  services to others.  The Adviser may permit
other fund  clients to use the initials  "MFS" in their  names.  The Fund agrees
that if the Adviser  shall for any reason no longer  serve as the Adviser to the
Fund,  the Fund will change its name so as to delete the  initials  "MFS." It is
understood that the Trustees,  officers and shareholders of the Trust are or may
be or become interested in the Adviser, as Directors,  officers,  employees,  or
otherwise and that  Directors,  officers and employees of the Adviser are or may
become similarly  interested in the Trust, and that the Adviser may be or become
interested in the Fund as a shareholder or otherwise.

         Article 8. Duration,  Termination and Amendment of this Agreement. This
Agreement  shall  become  effective  on the date first  above  written and shall
govern the relations between the parties hereto thereafter,  and shall remain in
force  until  January  2,  1999  on  which  date it will  terminate  unless  its
continuance  after January 2, 1999 is "specifically  approved at least annually"
(i) by the  vote  of a  majority  of the  Trustees  of the  Trust  who  are  not
"interested  persons" of the Trust or of the  Adviser at a meeting  specifically
called  for the  purpose  of voting on such  approval,  and (ii) by the Board of
Trustees  of the Trust,  or by "vote of a  majority  of the  outstanding  voting
securities" of the Fund.

         This Agreement may be terminated at any time without the payment of any
penalty by the  Trustees  or by "vote of a majority  of the  outstanding  voting
securities" of the Fund, or by the Adviser,  in each case on not more than sixty
days' nor less than  thirty  days'  written  notice  to the  other  party.  This
Agreement shall automatically terminate in the event of its "assignment".
<PAGE>

         This  Agreement  may be amended  only if such  amendment is approved by
"vote of a majority of the outstanding voting securities" of the Fund.

         Article  9.  Scope  of  Trust's  Obligations.  A copy  of  the  Trust's
Declaration of Trust is on file with the Secretary of State of The  Commonwealth
of  Massachusetts.  The Adviser  acknowledges that the obligations of or arising
out of  this  Agreement  are  not  binding  upon  any of the  Trust's  trustees,
officers, employees, agents or shareholders individually, but are binding solely
upon the assets and property of the Trust.  If this Agreement is executed by the
Trust  on  behalf  of one or more  series  of the  Trust,  the  Adviser  further
acknowledges  that the assets and  liabilities  of each  series of the Trust are
separate  and  distinct  and  that the  obligations  of or  arising  out of this
Agreement are binding  solely upon the assets or property of the series on whose
behalf the Trust has executed this Agreement.

         Article  10.  Definitions.  The terms  "specifically  approved at least
annually,"  "vote  of  a  majority  of  the  outstanding   voting   securities,"
"assignment,"  "affiliated  person," and "interested  person," when used in this
Agreement,  shall have the respective meanings specified, and shall be construed
in a manner  consistent  with, the Investment  Company Act of 1940 and the Rules
and Regulations promulgated thereunder,  subject, however, to such exemptions as
may be granted by the Securities and Exchange Commission under said Act.

         Article 11. Record Keeping. The Adviser will maintain records in a form
acceptable to the Trust and in compliance  with the rules and regulations of the
Securities  and  Exchange  Commission,  including  but not  limited  to  records
required to be maintained by Section 31(a) of the Investment Company Act of 1940
and the rules  thereunder,  which at all times will be the property of the Trust
and will be available for inspection and use by the Trust.
<PAGE>
         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed and  delivered  in their names and on their behalf by the  undersigned,
thereunto duly authorized,  and their respective seals to be hereto affixed, all
as of the day and year first written above. The undersigned Trustee of the Trust
has  executed  this  Agreement  not  individually,  but  as  Trustee  under  the
Declaration.

                                       MFS SERIES TRUST I on behalf of
                                         MFS CONVERTIBLE SECURITIES
                                         FUND, one of its series


                                       By:    A. KEITH BRODKIN
                                              A. Keith Brodkin
                                              Chairman and Trustee


                                       MASSACHUSETTS FINANCIAL
                                         SERVICES COMPANY


                                       By:     A. KEITH BRODKIN
                                               A. Keith Brodkin
                                               Chairman

<PAGE>
                                                            EXHIBIT NO. 99.5(j)


                              INVESTMENT ADVISORY AGREEMENT



         INVESTMENT ADVISORY AGREEMENT,  dated this 2nd day of January, 1997, by
and between MFS SERIES TRUST I, a Massachusetts business trust (the "Trust"), on
behalf  of MFS  BLUE  CHIP  FUND,  a  series  of the  Trust  (the  "Fund"),  and
MASSACHUSETTS   FINANCIAL   SERVICES  COMPANY,   a  Delaware   corporation  (the
"Adviser").

                                                    WITNESSETH:

         WHEREAS,  the Trust is engaged in business  as an  open-end  investment
company registered under the Investment Company Act of 1940; and

         WHEREAS,  the  Adviser is willing to provide business services to the 
Fund on the terms and  conditions hereinafter set forth;

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

         Article 1. Duties of the Adviser.  The Adviser  shall  provide the Fund
with such investment  advice and supervision as the latter may from time to time
consider  necessary for the proper  supervision of its funds.  The Adviser shall
act as Adviser to the Fund and as such shall furnish  continuously an investment
program  and  shall  determine  from  time  to time  what  securities  shall  be
purchased, sold or exchanged and what portion of the assets of the Fund shall be
held  uninvested,  subject always to the restrictions of the Trust's Amended and
Restated  Declaration  of Trust,  dated  January 6, 1995,  and By-Laws,  each as
amended from time to time  (respectively,  the "Declaration" and the "By-Laws"),
to  the  provisions  of the  Investment  Company  Act of  1940  and  the  Rules,
Regulations and orders thereunder and to the Fund's then-current  Prospectus and
Statement of Additional Information. The Adviser shall also make recommendations
as to the manner in which voting rights,  rights to consent to corporate  action
and any other rights  pertaining  to the Fund's  portfolio  securities  shall be
exercised.  Should  the  Trustees  at  any  time,  however,  make  any  definite
determination  as to the  investment  policy and notify the  Adviser  thereof in
writing,  the Adviser shall be bound by such  determination  for the period,  if
any,   specified  in  such  notice  or  until   similarly   notified  that  such
determination  shall be revoked.  The Adviser shall take, on behalf of the Fund,
all actions  which it deems  necessary  to  implement  the  investment  policies
determined  as provided  above,  and in  particular  to place all orders for the
purchase or sale of portfolio  securities for the Fund's account with brokers or
dealers  selected by it, and to that end, the Adviser is authorized as the agent
of the  Fund  to  give  instructions  to the  Custodian  of the  Fund  as to the
deliveries  of  securities  and payments of cash for the account of the Fund. In
connection with the selection of such brokers or dealers and the placing of such
orders,  the  Adviser is  directed  to seek for the Fund  execution  at the most
reasonable  price  by  responsible  brokerage  firms at  reasonably  competitive
commission  rates.  In  fulfilling  this  requirement,  the Adviser shall not be
deemed to have acted  unlawfully or to have  breached any duty,  created by this
<PAGE>
Agreement or otherwise,  solely by reason of its having caused the Fund to pay a
broker or dealer an amount of commission for effecting a securities  transaction
in excess of the  amount  of  commission  another  broker or dealer  would  have
charged for effecting that transaction,  if the Adviser determined in good faith
that such amount of  commission  was  reasonable in relation to the value of the
brokerage  and research  services  provided by such broker or dealer,  viewed in
terms  of  either  that   particular   transaction  or  the  Adviser's   overall
responsibilities with respect to the Fund and to other clients of the Adviser as
to which the Adviser exercises investment discretion.

The Adviser may from time to time enter into sub-investment  advisory agreements
with one or more  investment  advisers  with such  terms and  conditions  as the
Adviser may determine,  provided that such  sub-investment  advisory  agreements
have been approved in accordance  with  applicable  provisions of the Investment
Company Act of 1940.  Subject to the  provisions of Article 6, the Adviser shall
not be liable for any error of judgment or mistake of law by any  sub-adviser or
for any loss arising out of any  investment  made by any  sub-adviser or for any
act or omission in the execution and management of the Fund by any sub-adviser.

         Article 2.  Allocation  of Charges  and  Expenses.  The  Adviser  shall
furnish at its own expense  investment  advisory  and  administrative  services,
office  space,  equipment  and clerical  personnel  necessary  for servicing the
investments  of the  Fund  and  maintaining  its  organization,  and  investment
advisory  facilities  and executive and  supervisory  personnel for managing the
investments  and effecting the portfolio  transactions  of the Fund. The Adviser
shall arrange, if desired by the Trust, for Directors, officers and employees of
the  Adviser  to serve as  Trustees,  officers  or  agents  of the Trust if duly
elected or appointed to such positions and subject to their  individual  consent
and to any  limitations  imposed by law. It is understood that the Fund will pay
all of its own expenses including, without limitation,  compensation of Trustees
"not affiliated" with the Adviser;  governmental fees; interest charges;  taxes;
membership dues in the Investment Company Institute  allocable to the Fund; fees
and expenses of  independent  auditors,  of legal  counsel,  and of any transfer
agent,  registrar  or  dividend  disbursing  agent  of  the  Fund;  expenses  of
repurchasing and redeeming shares and servicing shareholder  accounts;  expenses
of preparing,  printing and mailing  stock  certificates,  shareholder  reports,
notices,  proxy statements and reports to governmental officers and commissions;
brokerage  and  other  expenses  connected  with the  execution,  recording  and
settlement of portfolio  security  transactions;  insurance  premiums;  fees and
expenses of the custodian for all services to the Fund, including safekeeping of
funds and securities and  maintaining  required books and accounts;  expenses of
calculating the net asset value of shares of the Fund; expenses of shareholders'
meetings; and expenses relating to the issuance,  registration and qualification
of shares of the Fund and the preparation,  printing and mailing of prospectuses
for such purposes (except to the extent that any Distribution Agreement to which
the Trust is a party  provides  that another party is to pay some or all of such
expenses).

         Article 3. Compensation of the Adviser. For the services to be rendered
and the  facilities  provided,  the Fund shall pay to the Adviser an  investment
advisory  fee  computed and paid monthly at an annual rate equal to 0.65% of the
Fund's average daily net assets for its then-current fiscal year. If the Adviser
shall serve for less than the whole of any period  specified  in this Article 3,
the compensation to the Adviser will be prorated.
<PAGE>

         Article 4. Special Services.. Should the Trust have occasion to request
the  Adviser  to perform  services  not herein  contemplated  or to request  the
Adviser to arrange  for the  services of others,  the  Adviser  will act for the
Trust on  behalf  of the Fund  upon  request  to the best of its  ability,  with
compensation  for the Adviser's  services to be agreed upon with respect to each
such occasion as it arises.

         Article 5.  Covenants of the Adviser.  The Adviser  agrees that it will
not  deal  with  itself,  or with  the  Trustees  of the  Trust  or the  Trust's
distributor, if any, as principals in making purchases or sales of securities or
other  property  for  the  account  of the  Fund,  except  as  permitted  by the
Investment Company Act of 1940 and the Rules,  Regulations or orders thereunder,
will not take a long or short  position  in the  shares  of the Fund  except  as
permitted by the  Declaration,  and will comply with all other provisions of the
Declaration  and the By-Laws and the  then-current  Prospectus  and Statement of
Additional Information of the Fund relative to the Adviser and its Directors and
officers.

         Article 6.  Limitation  of Liability of the Adviser.  The Adviser shall
not be  liable  for any  error of  judgment  or  mistake  of law or for any loss
arising out of any  investment  or for any act or omission in the  execution and
management  of the Fund,  except  for  willful  misfeasance,  bad faith or gross
negligence in the performance of its duties and obligations  hereunder.  As used
in this Article 6, the term  "Adviser"  shall  include  Directors,  officers and
employees of the Adviser as well as that corporation itself.

         Article 7.  Activities  of the Adviser.  The services of the Adviser to
the Fund are not  deemed  to be  exclusive,  the  Adviser  being  free to render
investment  advisory  and/or  other  services to others.  The Adviser may permit
other fund  clients to use the initials  "MFS" in their  names.  The Fund agrees
that if the Adviser  shall for any reason no longer  serve as the Adviser to the
Fund,  the Fund will change its name so as to delete the  initials  "MFS." It is
understood that the Trustees,  officers and shareholders of the Trust are or may
be or become interested in the Adviser, as Directors,  officers,  employees,  or
otherwise and that  Directors,  officers and employees of the Adviser are or may
become similarly  interested in the Trust, and that the Adviser may be or become
interested in the Fund as a shareholder or otherwise.

         Article 8. Duration,  Termination and Amendment of this Agreement. This
Agreement  shall  become  effective  on the date first  above  written and shall
govern the relations between the parties hereto thereafter,  and shall remain in
force  until  January  2,  1999  on  which  date it will  terminate  unless  its
continuance  after January 2, 1999 is "specifically  approved at least annually"
(i) by the  vote  of a  majority  of the  Trustees  of the  Trust  who  are  not
"interested  persons" of the Trust or of the  Adviser at a meeting  specifically
called  for the  purpose  of voting on such  approval,  and (ii) by the Board of
Trustees  of the Trust,  or by "vote of a  majority  of the  outstanding  voting
securities" of the Fund.

         This Agreement may be terminated at any time without the payment of any
penalty by the  Trustees  or by "vote of a majority  of the  outstanding  voting
securities" of the Fund, or by the Adviser,  in each case on not more than sixty
days' nor less than  thirty  days'  written  notice  to the  other  party.  This
Agreement shall automatically terminate in the event of its "assignment".
<PAGE>

         This  Agreement  may be amended  only if such  amendment is approved by
"vote of a majority of the outstanding voting securities" of the Fund.

         Article  9.  Scope  of  Trust's  Obligations.  A copy  of  the  Trust's
Declaration of Trust is on file with the Secretary of State of The  Commonwealth
of  Massachusetts.  The Adviser  acknowledges that the obligations of or arising
out of  this  Agreement  are  not  binding  upon  any of the  Trust's  trustees,
officers, employees, agents or shareholders individually, but are binding solely
upon the assets and property of the Trust.  If this Agreement is executed by the
Trust  on  behalf  of one or more  series  of the  Trust,  the  Adviser  further
acknowledges  that the assets and  liabilities  of each  series of the Trust are
separate  and  distinct  and  that the  obligations  of or  arising  out of this
Agreement are binding  solely upon the assets or property of the series on whose
behalf the Trust has executed this Agreement.

         Article  10.  Definitions.  The terms  "specifically  approved at least
annually,"  "vote  of  a  majority  of  the  outstanding   voting   securities,"
"assignment,"  "affiliated  person," and "interested  person," when used in this
Agreement,  shall have the respective meanings specified, and shall be construed
in a manner  consistent  with, the Investment  Company Act of 1940 and the Rules
and Regulations promulgated thereunder,  subject, however, to such exemptions as
may be granted by the Securities and Exchange Commission under said Act.

         Article 11. Record Keeping. The Adviser will maintain records in a form
acceptable to the Trust and in compliance  with the rules and regulations of the
Securities  and  Exchange  Commission,  including  but not  limited  to  records
required to be maintained by Section 31(a) of the Investment Company Act of 1940
and the rules  thereunder,  which at all times will be the property of the Trust
and will be available for inspection and use by the Trust.
<PAGE>

         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed and  delivered  in their names and on their behalf by the  undersigned,
thereunto duly authorized,  and their respective seals to be hereto affixed, all
as of the day and year first written above. The undersigned Trustee of the Trust
has  executed  this  Agreement  not  individually,  but  as  Trustee  under  the
Declaration.


                                       MFS SERIES TRUST I on
                                        behalf of MFS BLUE CHIP FUND,
                                        one of its series


                                       By:   A. KEITH BRODKIN
                                             A. Keith Brodkin
                                             Chairman and Trustee




                                       MASSACHUSETTS FINANCIAL
                                        SERVICES COMPANY



                                       By:   A. KEITH BRODKIN
                                             A. Keith Brodkin
                                             Chairman

<PAGE>
                                                            EXHIBIT NO. 99.5(k)


                            INVESTMENT ADVISORY AGREEMENT


         INVESTMENT ADVISORY AGREEMENT,  dated this 2nd day of January, 1997, by
and between MFS SERIES TRUST I, a Massachusetts business trust (the "Trust"), on
behalf  of MFS NEW  DISCOVERY  FUND,  a series of the Trust  (the  "Fund"),  and
MASSACHUSETTS   FINANCIAL   SERVICES  COMPANY,   a  Delaware   corporation  (the
"Adviser").

                                                    WITNESSETH:

         WHEREAS,  the Trust is engaged in business  as an  open-end  investment
company registered under the Investment Company Act of 1940; and

         WHEREAS,  the  Adviser is willing to provide  business  services to the
Fund on the terms and  conditions hereinafter set forth;

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

         Article 1. Duties of the Adviser.  The Adviser  shall  provide the Fund
with such investment  advice and supervision as the latter may from time to time
consider  necessary for the proper  supervision of its funds.  The Adviser shall
act as Adviser to the Fund and as such shall furnish  continuously an investment
program  and  shall  determine  from  time  to time  what  securities  shall  be
purchased, sold or exchanged and what portion of the assets of the Fund shall be
held  uninvested,  subject always to the restrictions of the Trust's Amended and
Restated  Declaration  of Trust,  dated  January 6, 1995,  and By-Laws,  each as
amended from time to time  (respectively,  the "Declaration" and the "By-Laws"),
to  the  provisions  of the  Investment  Company  Act of  1940  and  the  Rules,
Regulations and orders thereunder and to the Fund's then-current  Prospectus and
Statement of Additional Information. The Adviser shall also make recommendations
as to the manner in which voting rights,  rights to consent to corporate  action
and any other rights  pertaining  to the Fund's  portfolio  securities  shall be
exercised.  Should  the  Trustees  at  any  time,  however,  make  any  definite
determination  as to the  investment  policy and notify the  Adviser  thereof in
writing,  the Adviser shall be bound by such  determination  for the period,  if
any,   specified  in  such  notice  or  until   similarly   notified  that  such
determination  shall be revoked.  The Adviser shall take, on behalf of the Fund,
all actions  which it deems  necessary  to  implement  the  investment  policies
determined  as provided  above,  and in  particular  to place all orders for the
purchase or sale of portfolio  securities for the Fund's account with brokers or
dealers  selected by it, and to that end, the Adviser is authorized as the agent
of the  Fund  to  give  instructions  to the  Custodian  of the  Fund  as to the
deliveries  of  securities  and payments of cash for the account of the Fund. In
connection with the selection of such brokers or dealers and the placing of such
orders,  the  Adviser is  directed  to seek for the Fund  execution  at the most
reasonable  price  by  responsible  brokerage  firms at  reasonably  competitive
commission  rates.  In  fulfilling  this  requirement,  the Adviser shall not be
deemed to have acted  unlawfully or to have  breached any duty,  created by this
<PAGE>
Agreement or otherwise,  solely by reason of its having caused the Fund to pay a
broker or dealer an amount of commission for effecting a securities  transaction
in excess of the  amount  of  commission  another  broker or dealer  would  have
charged for effecting that transaction,  if the Adviser determined in good faith
that such amount of  commission  was  reasonable in relation to the value of the
brokerage  and research  services  provided by such broker or dealer,  viewed in
terms  of  either  that   particular   transaction  or  the  Adviser's   overall
responsibilities with respect to the Fund and to other clients of the Adviser as
to which the Adviser exercises investment discretion.

The Adviser may from time to time enter into sub-investment  advisory agreements
with one or more  investment  advisers  with such  terms and  conditions  as the
Adviser may determine,  provided that such  sub-investment  advisory  agreements
have been approved in accordance  with  applicable  provisions of the Investment
Company Act of 1940.  Subject to the  provisions of Article 6, the Adviser shall
not be liable for any error of judgment or mistake of law by any  sub-adviser or
for any loss arising out of any  investment  made by any  sub-adviser or for any
act or omission in the execution and management of the Fund by any sub-adviser.

         Article 2.  Allocation  of Charges  and  Expenses.  The  Adviser  shall
furnish at its own expense  investment  advisory  and  administrative  services,
office  space,  equipment  and clerical  personnel  necessary  for servicing the
investments  of the  Fund  and  maintaining  its  organization,  and  investment
advisory  facilities  and executive and  supervisory  personnel for managing the
investments  and effecting the portfolio  transactions  of the Fund. The Adviser
shall arrange, if desired by the Trust, for Directors, officers and employees of
the  Adviser  to serve as  Trustees,  officers  or  agents  of the Trust if duly
elected or appointed to such positions and subject to their  individual  consent
and to any  limitations  imposed by law. It is understood that the Fund will pay
all of its own expenses inclu ding, without limitation, compensation of Trustees
"not affiliated" with the Adviser;  governmental fees; interest charges;  taxes;
membership dues in the Investment Company Institute  allocable to the Fund; fees
and expenses of  independent  auditors,  of legal  counsel,  and of any transfer
agent,  registrar  or  dividend  disbursing  agent  of  the  Fund;  expenses  of
repurchasing and redeeming shares and servicing shareholder  accounts;  expenses
of preparing,  printing and mailing  stock  certificates,  shareholder  reports,
notices,  proxy statements and reports to governmental officers and commissions;
brokerage  and  other  expenses  connected  with the  execution,  recording  and
settlement of portfolio  security  transactions;  insurance  premiums;  fees and
expenses of the custodian for all services to the Fund, including safekeeping of
funds and securities and  maintaining  required books and accounts;  expenses of
calculating the net asset value of shares of the Fund; expenses of shareholders'
meetings; and expenses relating to the issuance,  registration and qualification
of shares of the Fund and the preparation,  printing and mailing of prospectuses
for such purposes (except to the extent that any Distribution Agreement to which
the Trust is a party  provides  that another party is to pay some or all of such
expenses).

         Article 3. Compensation of the Adviser. For the services to be rendered
and the  facilities  provided,  the Fund shall pay to the Adviser an  investment
advisory  fee  computed and paid monthly at an annual rate equal to 0.75% of the
Fund's average daily net assets for its then-current fiscal year. If the Adviser
shall serve for less than the whole of any period  specified  in this Article 3,
the compensation to the Adviser will be prorated.
<PAGE>

         Article 4. Special Services.. Should the Trust have occasion to request
the  Adviser  to perform  services  not herein  contemplated  or to request  the
Adviser to arrange  for the  services of others,  the  Adviser  will act for the
Trust on  behalf  of the Fund  upon  request  to the best of its  ability,  with
compensation  for the Adviser's  services to be agreed upon with respect to each
such occasion as it arises.

         Article 5.  Covenants of the Adviser.  The Adviser  agrees that it will
not  deal  with  itself,  or with  the  Trustees  of the  Trust  or the  Trust's
distributor, if any, as principals in making purchases or sales of securities or
other  property  for  the  account  of the  Fund,  except  as  permitted  by the
Investment Company Act of 1940 and the Rules,  Regulations or orders thereunder,
will not take a long or short  position  in the  shares  of the Fund  except  as
permitted by the  Declaration,  and will comply with all other provisions of the
Declaration  and the By-Laws and the  then-current  Prospectus  and Statement of
Additional Information of the Fund relative to the Adviser and its Directors and
officers.

         Article 6.  Limitation  of Liability of the Adviser.  The Adviser shall
not be  liable  for any  error of  judgment  or  mistake  of law or for any loss
arising out of any  investment  or for any act or omission in the  execution and
management  of the Fund,  except  for  willful  misfeasance,  bad faith or gross
negligence in the performance of its duties and obligations  hereunder.  As used
in this Article 6, the term  "Adviser"  shall  include  Directors,  officers and
employees of the Adviser as well as that corporation itself.

         Article 7.  Activities  of the Adviser.  The services of the Adviser to
the Fund are not  deemed  to be  exclusive,  the  Adviser  being  free to render
investment  advisory  and/or  other  services to others.  The Adviser may permit
other fund  clients to use the initials  "MFS" in their  names.  The Fund agrees
that if the Adviser  shall for any reason no longer  serve as the Adviser to the
Fund,  the Fund will change its name so as to delete the  initials  "MFS." It is
understood that the Trustees,  officers and shareholders of the Trust are or may
be or become interested in the Adviser, as Directors,  officers,  employees,  or
otherwise and that  Directors,  officers and employees of the Adviser are or may
become similarly  interested in the Trust, and that the Adviser may be or become
interested in the Fund as a shareholder or otherwise.

         Article 8. Duration,  Termination and Amendment of this Agreement. This
Agreement  shall  become  effective  on the date first  above  written and shall
govern the relations between the parties hereto thereafter,  and shall remain in
force  until  January  2,  1999  on  which  date it will  terminate  unless  its
continuance  after January 2, 1999 is "specifically  approved at least annually"
(i) by the  vote  of a  majority  of the  Trustees  of the  Trust  who  are  not
"interested  persons" of the Trust or of the  Adviser at a meeting  specifically
called  for the  purpose  of voting on such  approval,  and (ii) by the Board of
Trustees  of the Trust,  or by "vote of a  majority  of the  outstanding  voting
securities" of the Fund.

         This Agreement may be terminated at any time without the payment of any
penalty by the  Trustees  or by "vote of a majority  of the  outstanding  voting
securities" of the Fund, or by the Adviser,  in each case on not more than sixty
days' nor less than  thirty  days'  written  notice  to the  other  party.  This
Agreement shall automatically terminate in the event of its "assignment".
<PAGE>

         This  Agreement  may be amended  only if such  amendment is approved by
"vote of a majority of the outstanding voting securities" of the Fund.

         Article  9.  Scope  of  Trust's  Obligations.  A copy  of  the  Trust's
Declaration of Trust is on file with the Secretary of State of The  Commonwealth
of  Massachusetts.  The Adviser  acknowledges that the obligations of or arising
out of  this  Agreement  are  not  binding  upon  any of the  Trust's  trustees,
officers, employees, agents or shareholders individually, but are binding solely
upon the assets and property of the Trust.  If this Agreement is executed by the
Trust  on  behalf  of one or more  series  of the  Trust,  the  Adviser  further
acknowledges  that the assets and  liabilities  of each  series of the Trust are
separate  and  distinct  and  that the  obligations  of or  arising  out of this
Agreement are binding  solely upon the assets or property of the series on whose
behalf the Trust has executed this Agreement.

         Article  10.  Definitions.  The terms  "specifically  approved at least
annually,"  "vote  of  a  majority  of  the  outstanding   voting   securities,"
"assignment,"  "affiliated  person," and "interested  person," when used in this
Agreement,  shall have the respective meanings specified, and shall be construed
in a manner  consistent  with, the Investment  Company Act of 1940 and the Rules
and Regulations promulgated thereunder,  subject, however, to such exemptions as
may be granted by the Securities and Exchange Commission under said Act.

         Article 11. Record Keeping. The Adviser will maintain records in a form
acceptable to the Trust and in compliance  with the rules and regulations of the
Securities  and  Exchange  Commission,  including  but not  limited  to  records
required to be maintained by Section 31(a) of the Investment Company Act of 1940
and the rules  thereunder,  which at all times will be the property of the Trust
and will be available for inspection and use by the Trust.
<PAGE>
         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed and  delivered  in their names and on their behalf by the  undersigned,
thereunto duly authorized,  and their respective seals to be hereto affixed, all
as of the day and year first written above. The undersigned Trustee of the Trust
has  executed  this  Agreement  not  individually,  but  as  Trustee  under  the
Declaration.


                                       MFS SERIES TRUST I on
                                         behalf of MFS NEW DISCOVERY
                                         FUND, one of its series



                                       By:   A. KEITH BRODKIN
                                             A. Keith Brodkin
                                             Chairman and Trustee




                                       MASSACHUSETTS FINANCIAL
                                         SERVICES COMPANY



                                       By:   A. KEITH BRODKIN
                                             A. Keith Brodkin
                                             Chairman

<PAGE>
                                                            EXHIBIT NO. 99.5(l)


                          INVESTMENT ADVISORY AGREEMENT



         INVESTMENT ADVISORY AGREEMENT,  dated this 2nd day of January, 1997, by
and between MFS SERIES TRUST I, a Massachusetts business trust (the "Trust"), on
behalf of MFS SCIENCE AND  TECHNOLOGY  FUND, a series of the Trust (the "Fund"),
and  MASSACHUSETTS  FINANCIAL  SERVICES  COMPANY,  a Delaware  corporation  (the
"Adviser").

                                                    WITNESSETH:

         WHEREAS,  the Trust is engaged in business  as an  open-end  investment
company registered under the Investment Company Act of 1940; and

         WHEREAS,  the  Adviser is willing to provide  business services to the 
Fund on the terms and  conditions hereinafter set forth;

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

         Article 1. Duties of the Adviser.  The Adviser  shall  provide the Fund
with such investment  advice and supervision as the latter may from time to time
consider  necessary for the proper  supervision of its funds.  The Adviser shall
act as Adviser to the Fund and as such shall furnish  continuously an investment
program  and  shall  determine  from  time  to time  what  securities  shall  be
purchased, sold or exchanged and what portion of the assets of the Fund shall be
held  uninvested,  subject always to the restrictions of the Trust's Amended and
Restated  Declaration  of Trust,  dated  January 6, 1995,  and By-Laws,  each as
amended from time to time  (respectively,  the "Declaration" and the "By-Laws"),
to  the  provisions  of the  Investment  Company  Act of  1940  and  the  Rules,
Regulations and orders thereunder and to the Fund's then-current  Prospectus and
Statement of Additional Information. The Adviser shall also make recommendations
as to the manner in which voting rights,  rights to consent to corporate  action
and any other rights  pertaining  to the Fund's  portfolio  securities  shall be
exercised.  Should  the  Trustees  at  any  time,  however,  make  any  definite
determination  as to the  investment  policy and notify the  Adviser  thereof in
writing,  the Adviser shall be bound by such  determination  for the period,  if
any,   specified  in  such  notice  or  until   similarly   notified  that  such
determination  shall be revoked.  The Adviser shall take, on behalf of the Fund,
all actions  which it deems  necessary  to  implement  the  investment  policies
determined  as provided  above,  and in  particular  to place all orders for the
purchase or sale of portfolio  securities for the Fund's account with brokers or
dealers  selected by it, and to that end, the Adviser is authorized as the agent
of the  Fund  to  give  instructions  to the  Custodian  of the  Fund  as to the
deliveries  of  securities  and payments of cash for the account of the Fund. In
connection with the selection of such brokers or dealers and the placing of such
orders,  the  Adviser is  directed  to seek for the Fund  execution  at the most
reasonable  price  by  responsible  brokerage  firms at  reasonably  competitive
commission  rates.  In  fulfilling  this  requirement,  the Adviser shall 
<PAGE>
not be deemed to have acted unlawfully or to have breached any duty,  created by
this  Agreement or otherwise,  solely by reason of its having caused the Fund to
pay a broker  or  dealer an amount of  commission  for  effecting  a  securities
transaction in excess of the amount of commission another broker or dealer would
have charged for effecting that transaction,  if the Adviser  determined in good
faith that such amount of commission  was reasonable in relation to the value of
the brokerage and research services provided by such broker or dealer, viewed in
terms  of  either  that   particular   transaction  or  the  Adviser's   overall
responsibilities with respect to the Fund and to other clients of the Adviser as
to which the Adviser exercises investment discretion.

The Adviser may from time to time enter into sub-investment  advisory agreements
with one or more  investment  advisers  with such  terms and  conditions  as the
Adviser may determine,  provided that such  sub-investment  advisory  agreements
have been approved in accordance  with  applicable  provisions of the Investment
Company Act of 1940.  Subject to the  provisions of Article 6, the Adviser shall
not be liable for any error of judgment or mistake of law by any  sub-adviser or
for any loss arising out of any  investment  made by any  sub-adviser or for any
act or omission in the execution and management of the Fund by any sub-adviser.

         Article 2.  Allocation  of Charges  and  Expenses.  The  Adviser  shall
furnish at its own expense  investment  advisory  and  administrative  services,
office  space,  equipment  and clerical  personnel  necessary  for servicing the
investments  of the  Fund  and  maintaining  its  organization,  and  investment
advisory  facilities  and executive and  supervisory  personnel for managing the
investments  and effecting the portfolio  transactions  of the Fund. The Adviser
shall arrange, if desired by the Trust, for Directors, officers and employees of
the  Adviser  to serve as  Trustees,  officers  or  agents  of the Trust if duly
elected or appointed to such positions and subject to their  individual  consent
and to any  limitations  imposed by law. It is understood that the Fund will pay
all of its own expenses inclu ding, without limitation, compensation of Trustees
"not affiliated" with the Adviser;  governmental fees; interest charges;  taxes;
membership dues in the Investment Company Institute  allocable to the Fund; fees
and expenses of  independent  auditors,  of legal  counsel,  and of any transfer
agent,  registrar  or  dividend  disbursing  agent  of  the  Fund;  expenses  of
repurchasing and redeeming shares and servicing shareholder  accounts;  expenses
of preparing,  printing and mailing  stock  certificates,  shareholder  reports,
notices,  proxy statements and reports to governmental officers and commissions;
brokerage  and  other  expenses  connected  with the  execution,  recording  and
settlement of portfolio  security  transactions;  insurance  premiums;  fees and
expenses of the custodian for all services to the Fund, including safekeeping of
funds and securities and  maintaining  required books and accounts;  expenses of
calculating the net asset value of shares of the Fund; expenses of shareholders'
meetings; and expenses relating to the issuance,  registration and qualification
of shares of the Fund and the preparation,  printing and mailing of prospectuses
for such purposes (except to the extent that any Distribution Agreement to which
the Trust is a party  provides  that another party is to pay some or all of such
expenses).

         Article 3. Compensation of the Adviser. For the services to be rendered
and the  facilities  provided,  the Fund shall pay to the Adviser an  investment
advisory  fee  computed and paid monthly at an annual rate equal to 0.75% of the
Fund's average daily net assets for its then-current fiscal year. If the Adviser
shall serve for less than the whole of any period  specified  in this Article 3,
the compensation to the Adviser will be prorated.
<PAGE>

         Article 4. Special Services.. Should the Trust have occasion to request
the  Adviser  to perform  services  not herein  contemplated  or to request  the
Adviser to arrange  for the  services of others,  the  Adviser  will act for the
Trust on  behalf  of the Fund  upon  request  to the best of its  ability,  with
compensation  for the Adviser's  services to be agreed upon with respect to each
such occasion as it arises.

         Article 5.  Covenants of the Adviser.  The Adviser  agrees that it will
not  deal  with  itself,  or with  the  Trustees  of the  Trust  or the  Trust's
distributor, if any, as principals in making purchases or sales of securities or
other  property  for  the  account  of the  Fund,  except  as  permitted  by the
Investment Company Act of 1940 and the Rules,  Regulations or orders thereunder,
will not take a long or short  position  in the  shares  of the Fund  except  as
permitted by the  Declaration,  and will comply with all other provisions of the
Declaration  and the By-Laws and the  then-current  Prospectus  and Statement of
Additional Information of the Fund relative to the Adviser and its Directors and
officers.

         Article 6.  Limitation  of Liability of the Adviser.  The Adviser shall
not be  liable  for any  error of  judgment  or  mistake  of law or for any loss
arising out of any  investment  or for any act or omission in the  execution and
management  of the Fund,  except  for  willful  misfeasance,  bad faith or gross
negligence in the performance of its duties and obligations  hereunder.  As used
in this Article 6, the term  "Adviser"  shall  include  Directors,  officers and
employees of the Adviser as well as that corporation itself.

         Article 7.  Activities  of the Adviser.  The services of the Adviser to
the Fund are not  deemed  to be  exclusive,  the  Adviser  being  free to render
investment  advisory  and/or  other  services to others.  The Adviser may permit
other fund  clients to use the initials  "MFS" in their  names.  The Fund agrees
that if the Adviser  shall for any reason no longer  serve as the Adviser to the
Fund,  the Fund will change its name so as to delete the  initials  "MFS." It is
understood that the Trustees,  officers and shareholders of the Trust are or may
be or become interested in the Adviser, as Directors,  officers,  employees,  or
otherwise and that  Directors,  officers and employees of the Adviser are or may
become similarly  interested in the Trust, and that the Adviser may be or become
interested in the Fund as a shareholder or otherwise.

         Article 8. Duration,  Termination and Amendment of this Agreement. This
Agreement  shall  become  effective  on the date first  above  written and shall
govern the relations between the parties hereto thereafter,  and shall remain in
force  until  January  2,  1999  on  which  date it will  terminate  unless  its
continuance  after January 2, 1999 is "specifically  approved at least annually"
(i) by the  vote  of a  majority  of the  Trustees  of the  Trust  who  are  not
"interested  persons" of the Trust or of the  Adviser at a meeting  specifically
called  for the  purpose  of voting on such  approval,  and (ii) by the Board of
Trustees  of the Trust,  or by "vote of a  majority  of the  outstanding  voting
securities" of the Fund.

         This Agreement may be terminated at any time without the payment of any
penalty by the  Trustees  or by "vote of a majority  of the  outstanding  voting
securities" of the Fund, or by the Adviser,  in each case on not more than sixty
days' nor less than  thirty  days'  written  notice  to the  other  party.  This
Agreement shall automatically terminate in the event of its "assignment".
<PAGE>

         This  Agreement  may be amended  only if such  amendment is approved by
"vote of a majority of the outstanding voting securities" of the Fund.

         Article  9.  Scope  of  Trust's  Obligations.  A copy  of  the  Trust's
Declaration of Trust is on file with the Secretary of State of The  Commonwealth
of  Massachusetts.  The Adviser  acknowledges that the obligations of or arising
out of  this  Agreement  are  not  binding  upon  any of the  Trust's  trustees,
officers, employees, agents or shareholders individually, but are binding solely
upon the assets and property of the Trust.  If this Agreement is executed by the
Trust  on  behalf  of one or more  series  of the  Trust,  the  Adviser  further
acknowledges  that the assets and  liabilities  of each  series of the Trust are
separate  and  distinct  and  that the  obligations  of or  arising  out of this
Agreement are binding  solely upon the assets or property of the series on whose
behalf the Trust has executed this Agreement.

         Article  10.  Definitions.  The terms  "specifically  approved at least
annually,"  "vote  of  a  majority  of  the  outstanding   voting   securities,"
"assignment,"  "affiliated  person," and "interested  person," when used in this
Agreement,  shall have the respective meanings specified, and shall be construed
in a manner  consistent  with, the Investment  Company Act of 1940 and the Rules
and Regulations promulgated thereunder,  subject, however, to such exemptions as
may be granted by the Securities and Exchange Commission under said Act.

         Article 11. Record Keeping. The Adviser will maintain records in a form
acceptable to the Trust and in compliance  with the rules and regulations of the
Securities  and  Exchange  Commission,  including  but not  limited  to  records
required to be maintained by Section 31(a) of the Investment Company Act of 1940
and the rules  thereunder,  which at all times will be the property of the Trust
and will be available for inspection and use by the Trust.
<PAGE>
         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed and  delivered  in their names and on their behalf by the  undersigned,
thereunto duly authorized,  and their respective seals to be hereto affixed, all
as of the day and year first written above. The undersigned Trustee of the Trust
has  executed  this  Agreement  not  individually,  but  as  Trustee  under  the
Declaration.


                                       MFS SERIES TRUST I on behalf of
                                         MFS SCIENCE AND TECHNOLOGY
                                         FUND, one of its series



                                       By:     A. KEITH BRODKIN
                                               A. Keith Brodkin
                                               Chairman and Trustee




                                       MASSACHUSETTS FINANCIAL
                                          SERVICES COMPANY



                                        By:     A. KEITH BRODKIN
                                                A. Keith Brodkin
                                                Chairman


<PAGE>
                                                            EXHIBIT NO. 99.5(m)


                          INVESTMENT ADVISORY AGREEMENT



         INVESTMENT ADVISORY AGREEMENT,  dated this 2nd day of January, 1997, by
and between MFS SERIES TRUST I, a Massachusetts business trust (the "Trust"), on
behalf of MFS RESEARCH  INTERNATIONAL  FUND, a series of the Trust (the "Fund"),
and  MASSACHUSETTS  FINANCIAL  SERVICES  COMPANY,  a Delaware  corporation  (the
"Adviser").

                                                    WITNESSETH:

         WHEREAS,  the Trust is engaged in business  as an  open-end  investment
company registered under the Investment Company Act of 1940; and

         WHEREAS,  the  Adviser is willing to provide business services to the 
Fund on the terms and conditions hereinafter set forth;

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

         Article 1. Duties of the Adviser.  The Adviser  shall  provide the Fund
with such investment  advice and supervision as the latter may from time to time
consider  necessary for the proper  supervision of its funds.  The Adviser shall
act as Adviser to the Fund and as such shall furnish  continuously an investment
program  and  shall  determine  from  time  to time  what  securities  shall  be
purchased, sold or exchanged and what portion of the assets of the Fund shall be
held  uninvested,  subject always to the restrictions of the Trust's Amended and
Restated  Declaration  of Trust,  dated  January 6, 1995,  and By-Laws,  each as
amended from time to time  (respectively,  the "Declaration" and the "By-Laws"),
to  the  provisions  of the  Investment  Company  Act of  1940  and  the  Rules,
Regulations and orders thereunder and to the Fund's then-current  Prospectus and
Statement of Additional Information. The Adviser shall also make recommendations
as to the manner in which voting rights,  rights to consent to corporate  action
and any other rights  pertaining  to the Fund's  portfolio  securities  shall be
exercised.  Should  the  Trustees  at  any  time,  however,  make  any  definite
determination  as to the  investment  policy and notify the  Adviser  thereof in
writing,  the Adviser shall be bound by such  determination  for the period,  if
any,   specified  in  such  notice  or  until   similarly   notified  that  such
determination  shall be revoked.  The Adviser shall take, on behalf of the Fund,
all actions  which it deems  necessary  to  implement  the  investment  policies
determined  as provided  above,  and in  particular  to place all orders for the
purchase or sale of portfolio  securities for the Fund's account with brokers or
dealers  selected by it, and to that end, the Adviser is authorized as the agent
of the  Fund  to  give  instructions  to the  Custodian  of the  Fund  as to the
deliveries  of  securities  and payments of cash for the account of the Fund. In
connection with the selection of such brokers or dealers and the placing of such
orders,  the  Adviser is  directed  to seek for the Fund  execution  at the most
reasonable  price  by  responsible  brokerage  firms at  reasonably  competitive
commission  rates.  In  fulfilling  this  requirement,  the Adviser shall 
<PAGE>
not be deemed to have acted unlawfully or to have breached any duty,  created by
this  Agreement or otherwise,  solely by reason of its having caused the Fund to
pay a broker  or  dealer an amount of  commission  for  effecting  a  securities
transaction in excess of the amount of commission another broker or dealer would
have charged for effecting that transaction,  if the Adviser  determined in good
faith that such amount of commission  was reasonable in relation to the value of
the brokerage and research services provided by such broker or dealer, viewed in
terms  of  either  that   particular   transaction  or  the  Adviser's   overall
responsibilities with respect to the Fund and to other clients of the Adviser as
to which the Adviser exercises investment discretion.

The Adviser may from time to time enter into sub-investment  advisory agreements
with one or more  investment  advisers  with such  terms and  conditions  as the
Adviser may determine,  provided that such  sub-investment  advisory  agreements
have been approved in accordance  with  applicable  provisions of the Investment
Company Act of 1940.  Subject to the  provisions of Article 6, the Adviser shall
not be liable for any error of judgment or mistake of law by any  sub-adviser or
for any loss arising out of any  investment  made by any  sub-adviser or for any
act or omission in the execution and management of the Fund by any sub-adviser.

         Article 2.  Allocation  of Charges  and  Expenses.  The  Adviser  shall
furnish at its own expense  investment  advisory  and  administrative  services,
office  space,  equipment  and clerical  personnel  necessary  for servicing the
investments  of the  Fund  and  maintaining  its  organization,  and  investment
advisory  facilities  and executive and  supervisory  personnel for managing the
investments  and effecting the portfolio  transactions  of the Fund. The Adviser
shall arrange, if desired by the Trust, for Directors, officers and employees of
the  Adviser  to serve as  Trustees,  officers  or  agents  of the Trust if duly
elected or appointed to such positions and subject to their  individual  consent
and to any  limitations  imposed by law. It is understood that the Fund will pay
all of its own expenses including, without limitation,  compensation of Trustees
"not affiliated" with the Adviser;  governmental fees; interest charges;  taxes;
membership dues in the Investment Company Institute  allocable to the Fund; fees
and expenses of  independent  auditors,  of legal  counsel,  and of any transfer
agent,  registrar  or  dividend  disbursing  agent  of  the  Fund;  expenses  of
repurchasing and redeeming shares and servicing shareholder  accounts;  expenses
of preparing,  printing and mailing  stock  certificates,  shareholder  reports,
notices,  proxy statements and reports to governmental officers and commissions;
brokerage  and  other  expenses  connected  with the  execution,  recording  and
settlement of portfolio  security  transactions;  insurance  premiums;  fees and
expenses of the custodian for all services to the Fund, including safekeeping of
funds and securities and  maintaining  required books and accounts;  expenses of
calculating the net asset value of shares of the Fund; expenses of shareholders'
meetings; and expenses relating to the issuance,  registration and qualification
of shares of the Fund and the preparation,  printing and mailing of prospectuses
for such purposes (except to the extent that any Distribution Agreement to which
the Trust is a party  provides  that another party is to pay some or all of such
expenses).

         Article 3. Compensation of the Adviser. For the services to be rendered
and the  facilities  provided,  the Fund shall pay to the Adviser an  investment
advisory  fee  computed and paid monthly at an annual rate equal to 1.00% of the
Fund's average daily net assets for its then-current fiscal year. If the Adviser
shall serve for less than the whole of any period  specified  in this Article 3,
the compensation to the Adviser will be prorated.
<PAGE>

         Article 4. Special Services.. Should the Trust have occasion to request
the  Adviser  to perform  services  not herein  contemplated  or to request  the
Adviser to arrange  for the  services of others,  the  Adviser  will act for the
Trust on  behalf  of the Fund  upon  request  to the best of its  ability,  with
compensation  for the Adviser's  services to be agreed upon with respect to each
such occasion as it arises.

         Article 5.  Covenants of the Adviser.  The Adviser  agrees that it will
not  deal  with  itself,  or with  the  Trustees  of the  Trust  or the  Trust's
distributor, if any, as principals in making purchases or sales of securities or
other  property  for  the  account  of the  Fund,  except  as  permitted  by the
Investment Company Act of 1940 and the Rules,  Regulations or orders thereunder,
will not take a long or short  position  in the  shares  of the Fund  except  as
permitted by the  Declaration,  and will comply with all other provisions of the
Declaration  and the By-Laws and the  then-current  Prospectus  and Statement of
Additional Information of the Fund relative to the Adviser and its Directors and
officers.

         Article 6.  Limitation  of Liability of the Adviser.  The Adviser shall
not be  liable  for any  error of  judgment  or  mistake  of law or for any loss
arising out of any  investment  or for any act or omission in the  execution and
management  of the Fund,  except  for  willful  misfeasance,  bad faith or gross
negligence in the performance of its duties and obligations  hereunder.  As used
in this Article 6, the term  "Adviser"  shall  include  Directors,  officers and
employees of the Adviser as well as that corporation itself.

         Article 7.  Activities  of the Adviser.  The services of the Adviser to
the Fund are not  deemed  to be  exclusive,  the  Adviser  being  free to render
investment  advisory  and/or  other  services to others.  The Adviser may permit
other fund  clients to use the initials  "MFS" in their  names.  The Fund agrees
that if the Adviser  shall for any reason no longer  serve as the Adviser to the
Fund,  the Fund will change its name so as to delete the  initials  "MFS." It is
understood that the Trustees,  officers and shareholders of the Trust are or may
be or become interested in the Adviser, as Directors,  officers,  employees,  or
otherwise and that  Directors,  officers and employees of the Adviser are or may
become similarly  interested in the Trust, and that the Adviser may be or become
interested in the Fund as a shareholder or otherwise.

         Article 8. Duration,  Termination and Amendment of this Agreement. This
Agreement  shall  become  effective  on the date first  above  written and shall
govern the relations between the parties hereto thereafter,  and shall remain in
force  until  January  2,  1999  on  which  date it will  terminate  unless  its
continuance  after January 2, 1999 is "specifically  approved at least annually"
(i) by the  vote  of a  majority  of the  Trustees  of the  Trust  who  are  not
"interested  persons" of the Trust or of the  Adviser at a meeting  specifically
called  for the  purpose  of voting on such  approval,  and (ii) by the Board of
Trustees  of the Trust,  or by "vote of a  majority  of the  outstanding  voting
securities" of the Fund.

         This Agreement may be terminated at any time without the payment of any
penalty by the  Trustees  or by "vote of a majority  of the  outstanding  voting
securities" of the Fund, or by the Adviser,  in each case on not more than sixty
days' nor less than  thirty  days'  written  notice  to the  other  party.  This
Agreement shall automatically terminate in the event of its "assignment".
<PAGE>

         This  Agreement  may be amended  only if such  amendment is approved by
"vote of a majority of the outstanding voting securities" of the Fund.

         Article  9.  Scope  of  Trust's  Obligations.  A copy  of  the  Trust's
Declaration of Trust is on file with the Secretary of State of The  Commonwealth
of  Massachusetts.  The Adviser  acknowledges that the obligations of or arising
out of  this  Agreement  are  not  binding  upon  any of the  Trust's  trustees,
officers, employees, agents or shareholders individually, but are binding solely
upon the assets and property of the Trust.  If this Agreement is executed by the
Trust  on  behalf  of one or more  series  of the  Trust,  the  Adviser  further
acknowledges  that the assets and  liabilities  of each  series of the Trust are
separate  and  distinct  and  that the  obligations  of or  arising  out of this
Agreement are binding  solely upon the assets or property of the series on whose
behalf the Trust has executed this Agreement.

         Article  10.  Definitions.  The terms  "specifically  approved at least
annually,"  "vote  of  a  majority  of  the  outstanding   voting   securities,"
"assignment,"  "affiliated  person," and "interested  person," when used in this
Agreement,  shall have the respective meanings specified, and shall be construed
in a manner  consistent  with, the Investment  Company Act of 1940 and the Rules
and Regulations promulgated thereunder,  subject, however, to such exemptions as
may be granted by the Securities and Exchange Commission under said Act.

         Article 11. Record Keeping. The Adviser will maintain records in a form
acceptable to the Trust and in compliance  with the rules and regulations of the
Securities  and  Exchange  Commission,  including  but not  limited  to  records
required to be maintained by Section 31(a) of the Investment Company Act of 1940
and the rules  thereunder,  which at all times will be the property of the Trust
and will be available for inspection and use by the Trust.
<PAGE>
         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed and  delivered  in their names and on their behalf by the  undersigned,
thereunto duly authorized,  and their respective seals to be hereto affixed, all
as of the day and year first written above. The undersigned Trustee of the Trust
has  executed  this  Agreement  not  individually,  but  as  Trustee  under  the
Declaration.


                                       MFS SERIES TRUST I on behalf of
                                         MFS RESEARCH INTERNATIONAL
                                         FUND, one of its series



                                       By:   A. KEITH BRODKIN
                                             A. Keith Brodkin
                                             Chairman and Trustee




                                       MASSACHUSETTS FINANCIAL
                                         SERVICES COMPANY



                                       By:   A. KEITH BRODKIN
                                             A. Keith Brodkin
                                             Chairman

<PAGE>
                                                           EXHIBIT NO. 99.5(n)



                              SUB-ADVISORY AGREEMENT
                         MFS RESEARCH INTERNATIONAL FUND

         SUB-ADVISORY  AGREEMENT,  dated this 2nd day of January,  1997,  by and
between  MASSACHUSETTS  FINANCIAL SERVICES COMPANY, a Delaware  corporation (the
"Adviser") and FOREIGN & COLONIAL MANAGEMENT LTD., a company  incorporated under
the laws of England and Wales (the "Sub-Adviser").

                                                    WITNESSETH:

         WHEREAS,  the Adviser  provides  MFS Research  International  Fund (the
"Fund"),  a series of MFS Series Trust I (the "Trust"),  an open-end  investment
company  registered  under the  Investment  Company Act of 1940, as amended (the
"1940  Act"),  business  services  pursuant  to the terms and  conditions  of an
investment  advisory agreement dated January 2, 1997 (the "Advisory  Agreement")
between the Adviser and the Trust, on behalf of the Fund; and

         WHEREAS,  the Sub-Adviser is willing to provide services to the Adviser
on the terms and conditions hereinafter set forth.

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

         1. Duties of the Sub-Adviser.  The Sub-Adviser will furnish the Adviser
with information and advice relating to such portion of the Fund's assets as the
Adviser shall from time to time designate (the "Designated Assets").  Subject to
the  supervision of the Trustees of the Trust and the Adviser,  the  Sub-Adviser
will: (a) manage the Designated  Assets on behalf of the Fund in accordance with
the Fund's  investment  objective,  policies  and  limitations  as stated in the
Fund's then current  Prospectus (the  "Prospectus")  and Statement of Additional
Information (the "Statement"),  and the Trust's Amended and Restated Declaration
of Trust dated December 14, 1994, as amended,  and Amended and Restated By-Laws,
each as from time to time in effect  (respectively,  the  "Declaration"  and the
"By-Laws") and in compliance  with the 1940 Act and the rules,  regulations  and
orders thereunder;  (b) make investment decisions with respect to the Designated
Assets;  (c) place  purchase  and sale orders for  portfolio  transactions  with
respect to the Designated  Assets;  (d) manage otherwise  uninvested cash assets
with  respect  to the  Designated  Assets;  (e) as the agent of the  Fund,  give
instructions (including trade tickets) to the custodian and any sub-custodian of
the Fund as to deliveries of securities, transfers of currencies and payments of
cash with  respect to the  Designated  Assets (the  Sub-Adviser  shall  promptly
notify the  Adviser of such  instructions);  (f) employ  professional  portfolio
managers to provide research  services to the Fund; (g) attend periodic meetings
of the Board of  Trustees  of the Trust and (h)  obtain  all the  registrations,
qualifications and consents,  on behalf of the Fund, which are necessary for the
Fund to  purchase  and sell assets in each  jurisdiction  (other than the United
States)  in  which  the  Fund's  Designated  Assets  are  to  be  invested  (the
Sub-Adviser  shall  promptly  provide  the  Adviser  with  copies  of  any  such
registrations,  
<PAGE>
qualifications and consents).  In providing these services, the Sub-Adviser will
furnish  continuously  an  investment  program  with  respect to the  Designated
Assets.   The  Sub-Adviser  shall  be  responsible  for  monitoring  the  Fund's
compliance with the Prospectus, the Statement, the Declaration,  the By-Laws and
the 1940 Act and the rules,  regulations and orders thereunder and in monitoring
such  compliance the Sub-Adviser  shall do so in the functional  currency of the
Fund.  The  Sub-Adviser  shall  only be  responsible  for  compliance  with  the
above-mentioned  restrictions in regards to the Designated  Assets.  The Adviser
agrees to provide the  Sub-Adviser  with such  assistance  as may be  reasonably
requested  by the  Sub-Adviser  in  connection  with its  activities  under this
Agreement,  including, without limitation,  information concerning the Fund, its
funds available, or to become available,  for investment and generally as to the
conditions of the Fund's affairs.  From time to time the Adviser will notify the
Sub-Adviser of the aggregate U.S.  Dollar amount of the Designated  Assets.  The
Adviser will have responsibility for exercising proxy,  consent and other rights
pertaining to the Designated  Assets;  provided,  however,  that the Sub-Adviser
will,  as  requested,  make  recommendations  to the Adviser as to the manner in
which such proxy, consent and other rights should be exercised.

         Should the  Trustees  of the Trust or the  Adviser at any time make any
determination  as to  investment  policy and notify the  Sub-Adviser  thereof in
writing, the Sub-Adviser shall be bound by such determination for the period, if
any, specified in such notice or until notified that such determination has been
revoked. Further, the Adviser or the Trustees of the Trust may at any time, upon
written  notice  to the  Sub-Adviser,  suspend  or  restrict  the  right  of the
Sub-Adviser to determine what  Designated  Assets shall be purchased or sold and
what portion,  if any, of the Fund's Designated Assets shall be held uninvested.
It is understood that the Adviser undertakes to discuss with the Sub-Adviser any
such determinations of investment policy and any such suspension or restrictions
on the right of the  Sub-Adviser  to determine what  Designated  Assets shall be
purchased or sold or held uninvested, prior to the implementation thereof.

         2. Certain  Information to the  Sub-Adviser.  Copies of the Prospectus,
the  Statement,  the  Declaration  and the By-Laws  have been  delivered  to the
Sub-Adviser.  The Adviser agrees to notify the Sub-Adviser of each change in the
investment policies of the Fund and to provide to the Sub-Adviser as promptly as
practicable  copies of all amendments and  supplements  to the  Prospectus,  the
Statement,  the  Declaration  and the  By-Laws.  In  addition,  the Adviser will
promptly  provide  the  Sub-Adviser  with  any  procedures   applicable  to  the
Sub-Adviser adopted from time to time by the Trustees of the Trust and agrees to
provide promptly to the Sub-Adviser copies of all amendments thereto.

         3.  Execution  of  Certain  Documents.  Subject  to any  other  written
instructions  of the Adviser and the Trustees of the Trust,  the  Sub-Adviser is
hereby  appointed the Adviser's  and the Trust's agent and  attorney-in-fact  to
execute account documentation,  agreements, contracts and other documents as the
Sub-Adviser  shall be requested by brokers,  dealers,  counterparties  and other
persons in connection with its management of the Designated Assets.

         4. Reports.  The Sub-Adviser shall furnish to the Trustees of the Trust
or the  Adviser,  or  both,  as may be  appropriate,  quarterly  reports  of its
activities on behalf of the Fund, as required by applicable  law or as otherwise
requested  from time to time by the  Trustees of the Trust or the  Adviser,  and
such additional information,  reports, evaluations, 
<PAGE>
analyses  and  opinions  as  the  Trustees  of the  Trust  or  the  Adviser,  as
appropriate, may request from time to time.

         5. Brokerage. In connection with the selections of brokers,  dealers or
other  entities and the placing of orders for the purchase and sale of portfolio
investments  for the Fund,  the  Sub-Adviser  is  directed  to seek for the Fund
execution  at the  most  favorable  price  by  responsible  brokerage  firms  at
reasonably  competitive  commission rates. In fulfilling this  requirement,  the
Sub-Adviser shall not be deemed to have acted unlawfully or to have breached any
duty,  created by this  Agreement or  otherwise,  solely by reason of its having
caused the Fund to pay a broker,  dealer or other entity an amount of commission
for  effecting a securities  transaction  in excess of the amount of  commission
another  broker,  dealer or other entity would have charged for  effecting  that
transaction,  if the  Sub-Adviser  determined  in good faith that such amount of
commission was reasonable in relation to the value of the brokerage and research
services (within the meaning of Section 28(e) of the Securities  Exchange Act of
1934, as amended)  provided by such broker,  dealer or other  entity,  viewed in
terms  of  either  that  particular  transaction  or the  Sub-Adviser's  overall
responsibilities  with  respect  to  the  Fund  and  to  other  clients  of  the
Sub-Adviser as to which the Sub-Adviser exercises investment discretion.

         6.  Services to Other  Companies  or Accounts.  On  occasions  when the
Sub-Adviser  deems the purchase or sale of a security to be in the best interest
of the Fund as well as other clients,  the Sub-Adviser,  to the extent permitted
by applicable  laws and  regulations,  may, but shall be under no obligation to,
aggregate the  securities to be so purchased or sold in order to obtain the most
favorable price or lower brokerage commissions and efficient execution.  In such
event,  allocation  of the  securities  so  purchased  or  sold,  as well as the
expenses  incurred in the  transaction  will be made by the  Sub-Adviser  in the
manner it considers to be the most equitable. The Sub-Adviser agrees to allocate
similarly  opportunities  to sell or otherwise  dispose of securities  among the
Fund and other clients of the Sub-Adviser.

         7. Other Sub-Advisers. The Sub-Adviser may from time to time enter into
investment  sub-advisory  agreements with one or more investment  advisers,  (an
"Other  Sub-Adviser"),  to the Fund to perform  some or all of the  services for
which the Sub-Adviser is responsible  pursuant to this Agreement upon such terms
and  conditions  as the Adviser and the  Sub-Adviser  may  determine;  provided,
however,  that such investment  sub-advisory  agreements have been approved by a
majority  of the  Trustees  of the Trust who are not  interested  persons of the
Trust, or the Sub-Adviser or the Other  Sub-Adviser and by vote of a majority of
the outstanding voting securities of the Fund; and, provided,  further, that the
Sub-Adviser  shall  own a  majority  of  the  voting  securities  of  any  Other
Sub-Adviser. The Sub-Adviser may terminate the services of any Other Sub-Adviser
at any  time  in its  sole  discretion,  and  shall  at  such  time  assume  the
responsibilities  of such Other  Sub-Adviser  unless and until a successor Other
Sub-Adviser  is  selected.  The  Sub-Adviser  shall be  liable  for any error of
judgment or mistake of law by any Other  Sub-Adviser and for any act or omission
in the execution and management of the Fund by any Other Sub-Adviser.
<PAGE>

         8. Compensation of the Sub-Adviser.  For the services to be rendered by
the Sub-Adviser  under this Agreement,  the Adviser shall pay to the Sub-Adviser
compensation, computed and paid monthly in arrears in U.S. dollars, at a rate of
0.40%  per annum of the  average  daily  net  asset  value of the  Fund.  If the
Sub-Adviser  shall serve for less than the whole of any month,  the compensation
payable  to the  Sub-Adviser  with  respect  to the Fund will be  prorated.  The
Sub-Adviser  will pay its expenses  incurred in performing its duties under this
Agreement. Neither the Trust nor the Fund shall be liable to the Sub-Adviser for
the compensation of the Sub-Adviser. For the purpose of determining fees payable
to the Sub-Adviser,  the value of the Fund's net assets shall be computed at the
times and in the manner  specified in the Prospectus  and/or  Statement.  In the
event that the Adviser  reduces its  management  fee payable  under the Advisory
Agreement in order to comply with the expense  limitations of a State securities
commission or otherwise,  the Sub-Adviser agrees to reduce its fee payable under
this Agreement by a pro rata amount.

         9. Limitation of Liability of the  Sub-Adviser.  The Sub-Adviser  shall
not be  liable  for any  error of  judgment  or  mistake  of law or for any loss
arising out of any  investment  or for any act or omission in the  execution and
management  of the Fund,  except  for  willful  misfeasance,  bad faith or gross
negligence  in the  performance  of its duties and  obligations  hereunder.  The
Trust,  on behalf of the Fund, may enforce any  obligations  of the  Sub-Adviser
under this  Agreement  and may recover  directly  from the  Sub-Adviser  for any
liability it may have to the Fund.

         10.  Activities of the Sub-Adviser.  The services of the Sub-Adviser to
the Fund are not deemed to be exclusive,  the  Sub-Adviser  being free to render
investment  advisory and/or other services to others.  It is understood that the
Trustees, officers and shareholders of the Trust, the Fund or the Adviser are or
may be or  become  interested  in the  Sub-Adviser  or any  person  controlling,
controlled  by or under  common  control  with  the  Sub-Adviser,  as  trustees,
officers,  employees or otherwise and that  trustees,  officers and employees of
the Sub-Adviser or any person controlling, controlled by or under common control
with the Sub-Adviser may become  similarly  interested in the Trust, the Fund or
the Adviser and that the Sub-Adviser may be or become  interested in the Fund as
a shareholder or otherwise.

         11.  Covenants of the Sub-Adviser.  The Sub-Adviser  agrees that it (a)
will not deal with itself, "affiliated persons" of the Sub-Adviser, the Trustees
of the Trust or the  Fund's  distributor,  as  principals,  agents,  brokers  or
dealers in making  purchases or sales of  securities  or other  property for the
account  of the  Fund,  except  as  permitted  by the  1940  Act and the  rules,
regulations and orders  thereunder and subject to the prior written  approval of
the  Adviser,  (b) will not take a long or short  position  in the shares of the
Fund except as permitted by the  Declaration  and (c) will comply with all other
provisions of the  Declaration and the By-Laws and the  then-current  Prospectus
and Statement relative to the Sub-Adviser and its trustees,  officers, employees
and affiliates.

        12.   Representations, Warranties and Additional Agreements  of  the
Sub-Adviser. The Sub-Adviser represents, warrants and agrees that:

             (a) It: (i) is registered as an investment adviser under the U.S.
                 Investment  Advisers Act of 1940 (the  "Advisers  Act"),  is
                 authorized  to undertake  investment  business in the United
                 Kingdom  by  virtue  of 
<PAGE>

                 its membership in the Investment  Management Regulatory
                 Organisation  ("IMRO") and is  registered  under the laws of
                 any  jurisdiction in which the Sub-Adviser is required to be
                 registered as an investment  adviser in order to perform its
                 obligations under this Agreement, and will continue to be so
                 registered for so long as this Agreement  remains in effect;
                 (ii) is not  prohibited  by the 1940 Act or the Advisers Act
                 from performing the services contemplated by this Agreement;
                 (iii) has met, and will continue to meet for so long as this
                 Agreement remains in effect, any other applicable Federal or
                 State  requirements,  or the applicable  requirements of any
                 regulatory or industry  self-regulatory agency, necessary to
                 be met in order to perform the services contemplated by this
                 Agreement;  (iv) has the authority to enter into and perform
                 the  services  contemplated  by  this  Agreement;  (v)  will
                 immediately  notify the Adviser in writing of the occurrence
                 of any event  that would  disqualify  the  Sub-Adviser  from
                 serving as an investment  adviser of an  investment  company
                 pursuant to Section 9(a) of the 1940 Act or  otherwise;  and
                 (vi) will  immediately  notify the Adviser in writing of any
                 change of  control of the  Sub-Adviser  or any parent of the
                 Sub-Adviser resulting in an "assignment" of this Agreement.

             (b) It will  maintain,  keep current and  preserve on behalf of the
                 Fund,  in the  manner  and  for  the  periods  of  time
                 required  or  permitted  by the  1940  Act  and  the  rules,
                 regulations  and orders  thereunder and the Advisers Act and
                 the  rules,  regulations  and  orders  thereunder,   records
                 relating to investment  transactions made by the Sub-Adviser
                 for the Fund as may be  reasonably  requested by the Adviser
                 or the Fund from time to time. The  Sub-Adviser  agrees that
                 such  records  are the  property  of the  Fund,  and will be
                 surrendered  to the Fund promptly  upon  request;  provided,
                 however,  that the  Sub-Adviser  may  retain  copies of such
                 records for archival purposes as required by IMRO.

            (c)  The Sub-Adviser has adopted a written code of ethics complying 
                 with the  requirements of Rule 17j-1 under the 1940 Act
                 and, if it has not already done so, will provide the Adviser
                 and the Trust with a copy of such code of  ethics,  and upon
                 any amendment to such code of ethics,  promptly provide such
                 amendment.  At least annually the  Sub-Adviser  will provide
                 the Trust and the Adviser with a  certificate  signed by the
                 chief  compliance  officer  (or the person  performing  such
                 function) of the Sub-Adviser certifying,  to the best of his
                 or her knowledge,  compliance with the code of ethics during
                 the   immediately   preceding   twelve  (12)  month  period,
                 including  any material  violations  of or amendments to the
                 code of ethics or the administration thereof.

           (d)   It has provided the Adviser and the Trust with a copy
                 of its  Form  ADV  as  most  recently  filed  with  the
                 Securities  and  Exchange  Commission  (the "SEC") and will,
                 promptly after filing any amendment to its Form ADV with the
                 SEC, furnish a copy of such amendment to the Adviser and the
                 Trust.
<PAGE>

         13. Duration and  Termination of this  Agreement.  This Agreement shall
become  effective on the date first above written and shall govern the relations
between the parties hereto  thereafter,  and shall remain in force until January
2,  1999  and  each  year  thereafter  but  only so long as its  continuance  is
"specifically  approved at least  annually" (a) by the vote of a majority of the
Trustees  of the Trust who are not  "interested  persons" of the Trust or of the
Adviser or of the Sub-Adviser at a meeting  specifically  called for the purpose
of voting on such approval, and (b) by the Board of Trustees of the Trust, or by
"vote of a majority of the  outstanding  voting  securities"  of the Fund.  This
Agreement  may be  terminated  at any time without the payment of any penalty by
the  Trustees  of the Trust,  by "vote of a majority of the  outstanding  voting
securities" of the Fund or by the Adviser,  on not more than sixty days nor less
than thirty days written  notice,  or by the Sub-Adviser on not more than ninety
days nor less than sixty days written notice. This Agreement shall automatically
terminate  in the event of its  "assignment"  or in the event that the  Advisory
Agreement shall have terminated for any reason.

         14.  Amendments to this  Agreement.  This  Agreement may be amended 
only if such  amendment  is approved  by "vote of a majority of the  outstanding
voting securities" of the Fund, by the Adviser and by the Sub-Adviser.

         15.  Certain  Definitions.  The terms  "specifically  approved at least
annually",   "vote  of  a  majority  of  the  outstanding  voting   securities",
"assignment", "control", "affiliated persons" and "interested person", when used
in this Agreement,  shall have the respective meanings  specified,  and shall be
construed in a manner  consistent with, the 1940 Act and the rules,  regulations
and orders thereunder, subject, however, to such exemptions as may be granted by
the SEC under the 1940 Act.

         16.  Survival  of  Representations  and  Warranties;   Duty  to  Update
Information. All representations and warranties made by the Sub-Adviser pursuant
to Section 12 hereof shall  survive for the duration of this  Agreement  and the
Sub-Adviser  shall  immediately  notify,  but in no event  later  than  five (5)
business  days,  the  Adviser in  writing  upon  becoming  aware that any of the
foregoing representations and warranties are no longer true.

         17. Miscellaneous. This Agreement shall be governed by and construed in
accordance  with the internal laws of The  Commonwealth  of  Massachusetts.  All
notices  provided for by this Agreement  shall be in writing and shall be deemed
given when received, against appropriate receipt, by the Sub-Adviser's Secretary
in the case of the Sub-Adviser, the Adviser's General Counsel in the case of the
Adviser, and the Trust's Secretary in the case of the Fund, or such other person
as a party  shall  designate  by  notice to the other  parties.  This  Agreement
constitutes  the entire  agreement  among the parties  hereto and supersedes any
prior  agreement  among the parties  relating to the subject matter hereof.  The
section  headings of this Agreement are for  convenience of reference and do not
constitute a part hereof.
<PAGE>
         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed and  delivered  in their names and on their behalf by the  undersigned,
thereunto duly authorized,  and their respective seals to be hereto affixed, all
as of the day and year first written above.

                                                     MASSACHUSETTS FINANCIAL
                                                        SERVICES COMPANY


                                                     By:  JEFFREY L. SHAMES
                                                          Jeffrey L. Shames
                                                          President


                                                     FOREIGN & COLONIAL
                                                       MANAGEMENT LTD.



                                                     By:  JAMES OGLIVY
                                                          James Oglivy



                                                     By:  JONATHAN LUBRAN
                                                          Jonathan Lubran
<PAGE>


The foregoing is hereby agreed to:

         A copy of the  Declaration  of Trust of the  Trust is on file  with the
Secretary of State of The  Commonwealth  of  Massachusetts.  The parties  hereto
acknowledge  that the  obligations of or arising out of this  instrument are not
binding  upon  any of the  Trust's  trustees,  officers,  employees,  agents  or
shareholders  individually,  but are binding solely upon the assets and property
of the Trust in accordance with its proportionate  interest  hereunder.  If this
instrument  is  executed  by the Trust on  behalf  of one or more  series of the
Trust,  the parties hereto  acknowledge  that the assets and liabilities of each
series of the Trust are separate and  distinct  and that the  obligations  of or
arising out of this instrument are binding solely upon the assets or property of
the series on whose behalf the Trust has executed this instrument.  If the Trust
has executed this instrument on behalf of more than one series of the Trust, the
parties hereto also agree that the obligations of each series hereunder shall be
several and not joint, in accordance with its proportionate  interest hereunder,
and  the  parties  hereto  agree  not to  proceed  against  any  series  for the
obligations of another series.

MFS SERIES TRUST I
  on behalf of MFS RESEARCH INTERNATIONAL FUND


By:      A. KEITH BRODKIN
         A. Keith Brodkin
         Chairman

<PAGE>
                                                          EXHIBIT NO. 99.5(o)


                              SUB-ADVISORY AGREEMENT
                         MFS RESEARCH INTERNATIONAL FUND

         SUB-ADVISORY  AGREEMENT,  dated this 2nd day of January,  1997,  by and
between FOREIGN & COLONIAL  MANAGEMENT  LTD., a company  incorporated  under the
laws of England and Wales (the  "Sub-Adviser"),  and FOREIGN & COLONIAL EMERGING
MARKETS  LIMITED,  a company  incorporated  under the laws of England  and Wales
("FCEM").

                                     WITNESSETH:

         WHEREAS,  Massachusetts  Financial  Services  Company  (the  "Adviser")
provides MFS Research  International  Fund (the "Fund"),  a series of MFS Series
Trust I (the  "Trust"),  an open-end  investment  company  registered  under the
Investment  Company Act of 1940, as amended (the "1940 Act"),  business services
pursuant to the terms and conditions of an investment  advisory  agreement dated
January 2, 1997 (the "Advisory Agreement") between the Adviser and the Trust, on
behalf of the Fund;

         WHEREAS,  the Sub-Adviser  provides services to the Adviser pursuant to
the terms and conditions of a sub-advisory  agreement dated Janaury 2, 1997 (the
"FCM Sub-Advisory Agreement") between the Adviser and the Sub-Adviser; and

         WHEREAS,  FCEM is willing to provide services to the Sub-Adviser on the
terms and conditions hereinafter set forth.

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

         1. Duties of FCEM. FCEM will furnish the Sub-Adviser  with  information
and  advice  relating  to such  portion  of the  Fund's  assets as the  Adviser,
Sub-Adviser and FCEM shall from time to time mutually designate (the "Designated
Assets").  Subject to the supervision of the Trustees of the Trust,  the Adviser
and the  Sub-Adviser,  FCEM will: (a) manage the Designated  Assets on behalf of
the Fund in  accordance  with the  Fund's  investment  objective,  policies  and
limitations as stated in the Fund's then current  Prospectus (the  "Prospectus")
and  Statement of  Additional  Information  (the  "Statement"),  and the Trust's
Amended and Restated  Declaration  of Trust dated December 14, 1994, as amended,
and  Amended  and  Restated  By-Laws,  each  as from  time  to  time  in  effect
(respectively,  the"Declaration"  and the "By-Laws") and in compliance  with the
1940 Act and the rules,  regulations and orders thereunder;  (b) make investment
decisions  with respect to the  Designated  Assets;  (c) place purchase and sale
orders for portfolio  transactions  with respect to the Designated  Assets;  (d)
manage otherwise  uninvested cash assets with respect to the Designated Assets ;
(e) as the agent of the Fund, give instructions (including trade tickets) to the
custodian and any  sub-custodian  of the Fund as to  deliveries  of  securities,
transfers of  currencies  and  payments of cash with  respect to the  Designated
Assets  (FCEM shall  promptly  notify the Adviser  and the  Sub-Adviser  of such
instructions);  (f) employ  professional  portfolio managers to provide research
services to the
<PAGE>
Fund; (g) attend periodic meetings of the Board of Trustees of the Trust and (h)
obtain all the  registrations,  qualifications  and  consents,  on behalf of the
Fund,  which are  necessary  for the Fund to  purchase  and sell  assets in each
jurisdiction  (other than the United States) in which the Designated  Assets are
to be invested (FCEM shall promptly provide the Adviser and the Sub-Adviser with
copies of any such  registrations,  qualifications  and consents).  In providing
these  services,  FCEM will  furnish  continuously  an  investment  program with
respect to the Designated  Assets.  FCEM shall be responsible for monitoring the
Fund's  compliance  with the Prospectus,  the Statement,  the  Declaration,  the
By-Laws and the 1940 Act and the rules, regulations and orders thereunder and in
monitoring such  compliance  FCEM shall do so in the functional  currency of the
Fund.  FCEM shall only be responsible  for compliance  with the  above-mentioned
restrictions  in regards to the Designated  Assets.  The  Sub-Adviser  agrees to
provide  FCEM with such  assistance  as may be  reasonably  requested by FCEM in
connection  with  its  activities  under  this  Agreement,   including,  without
limitation,  information concerning the Fund, its funds available,  or to become
available,  for  investment  and  generally as to the  conditions  of the Fund's
affairs.

         Should the Trustees of the Trust or the Adviser and the  Sub-Adviser at
any time make any  determination as to investment policy and notify FCEM thereof
in writing,  FCEM shall be bound by such  determination  for the period, if any,
specified  in such notice or until  notified  that such  determination  has been
revoked.  Further,  the Adviser and the Sub-Adviser or the Trustees of the Trust
may at any time,  upon written notice to FCEM,  suspend or restrict the right of
FCEM to  determine  what assets of the Fund shall be  purchased or sold and what
portion, if any, of the Fund's assets shall be held uninvested. It is understood
that the Adviser and the  Sub-Adviser  undertake  to discuss  with FCEM any such
determinations  of investment policy and any such suspensions or restrictions on
the right of FCEM to  determine  what assets of the Fund shall be  purchased  or
sold or held uninvested, prior to the implementation thereof.

         2.  Execution  of  Certain  Documents.  Subject  to any  other  written
instructions of the Adviser, the Sub-Adviser and the Trustees of the Trust, FCEM
is hereby appointed the Sub-Adviser's and the Trust's agent and attorney-in-fact
to execute account documentation,  agreements,  contracts and other documents as
FCEM shall be requested by brokers, dealers, counterparties and other persons in
connection with its management of the Designated Assets.

         3. Brokerage. In connection with the selections of brokers,  dealers or
other  entities and the placing of orders for the purchase and sale of portfolio
investments for the Fund with respect to the Designated Assets, FCEM is directed
to seek  for the  Fund  execution  at the most  favorable  price by  responsible
brokerage firms at reasonably  competitive  commission rates. In fulfilling this
requirement,  FCEM  shall  not be  deemed to have  acted  unlawfully  or to have
breached any duty,  created by this Agreement or otherwise,  solely by reason of
its having caused the Fund to pay a broker,  dealer or other entity an amount of
commission  for  effecting a securities  transaction  in excess of the amount of
commission  another  broker,  dealer or other  entity  would  have  charged  for
effecting that transaction, if FCEM determined in good faith that such amount of
commission was reasonable in relation to the value of the brokerage and research
services (within the meaning of Section 28(e) of the Securities  Exchange Act of
1934, as amended)  provided by such broker,  dealer or other  entity,  viewed in
terms of either that particular  
<PAGE>
transaction or FCEM's overall  responsibilities  with respect to the Fund and to
other clients of FCEM as to which FCEM exercises investment discretion.

         4.  Reports.  FCEM shall  furnish  to the  Trustees  of the Trust,  the
Adviser or the  Sub-Adviser,  or all of them, as may be  appropriate,  quarterly
reports of its  activities on behalf of the Fund, as required by applicable  law
or as otherwise  requested  from time to time by the Trustees of the Trust,  the
Adviser  or  the  Sub-Adviser,   and  such  additional   information,   reports,
evaluations,  analyses and opinions as the Trustees of the Trust, the Adviser or
the Sub-Adviser, as appropriate, may request from time to time.

         5.  Services to Other  Companies  or Accounts.  On occasions  when FCEM
deems the purchase or sale of a security to be in the best  interest of the Fund
as well as other clients,  FCEM, to the extent  permitted by applicable laws and
regulations,  may, but shall be under no obligation to, aggregate the securities
to be so purchased or sold in order to obtain the most favorable  price or lower
brokerage commissions and efficient execution.  In such event, allocation of the
securities  so  purchased  or  sold,  as well as the  expenses  incurred  in the
transaction  will be made by FCEM in the  manner  it  considers  to be the  most
equitable.  FCEM agrees to allocate similarly opportunities to sell or otherwise
dispose of securities among the Fund and other clients of FCEM.

         6.  Compensation of FCEM. For the services to be rendered by FCEM under
this Agreement,  the Sub-Adviser  shall pay to FCEM  compensation,  computed and
paid monthly in arrears,  at a rate of 0.12% per annum of the average  daily net
asset  value of the  Fund.  If FCEM  shall  serve for less than the whole of any
month,  the  compensation  payable  to FCEM  with  respect  to the Fund  will be
prorated.  FCEM will pay its expenses  incurred in  performing  its duties under
this Agreement.  Neither the Trust,  the Adviser nor the Fund shall be liable to
FCEM for the  compensation of FCEM. For the purpose of determining  fees payable
to FCEM,  the value of the Fund's net assets  shall be computed at the times and
in the manner specified in the Prospectus  and/or  Statement.  In the event that
the  Sub-Adviser  reduces its management fee payable under the FCM  Sub-Advisory
Agreement in order to comply with the expense  limitations of a State securities
commission  or  otherwise,  FCEM  agrees to reduce  its fee  payable  under this
Agreement by a pro rata amount.

         7.  Limitation  of Liability of FCEM.  FCEM shall not be liable for any
error  of  judgment  or  mistake  of law  or for  any  loss  arising  out of any
investment  or for any act or omission in the  execution  and  management of the
Fund,  except for  willful  misfeasance,  bad faith or gross  negligence  in the
performance of its duties and obligations hereunder. The Trust, on behalf of the
Fund,  may enforce any  obligations of FCEM under this Agreement and may recover
directly from FCEM for any liability it may have to the Fund.

         8.  Activities of FCEM. The services of FCEM to the Fund are not deemed
to be  exclusive,  FCEM being free to render  investment  advisory  and/or other
services  to  others.   It  is  understood  that  the  Trustees,   officers  and
shareholders  of the Trust,  the Fund, the Adviser or the Sub-Adviser are or may
become  interested  in FCEM or any person  controlling,  controlled  by or under
common control with FCEM, as trustees, officers, employees or otherwise and that
trustees,  officers and employees of FCEM or any person controlling,  controlled
by or under common  control  with FCEM may become  similarly  interested  in the
Trust,  the Fund, the Adviser or the  Sub-Adviser and that FCEM may be or become
interested in the Fund as a shareholder or otherwise.
<PAGE>

         9.  Covenants  of FCEM.  FCEM  agrees  that it (a)  will not deal  with
itself, "affiliated persons" of FCEM, the Sub-Adviser, the Trustees of the Trust
or the Fund's distributor,  as principals,  agents, brokers or dealers in making
purchases or sales of securities or other  property for the account of the Fund,
except  as  permitted  by the 1940 Act and the  rules,  regulations  and  orders
thereunder  and subject to the prior written  approval of the Adviser,  (b) will
not take a long or short  position in the shares of the Fund except as permitted
by the  Declaration  and (c)  will  comply  with  all  other  provisions  of the
Declaration  and the  By-Laws  and the  then-current  Prospectus  and  Statement
relative to FCEM and its trustees, officers, employees and affiliates.

         10. Representations,  Warranties  and  Additional  Agreements of FCEM. 
FCEM  represents,  warrants and agrees that:

          (a) It: (i) is registered as an investment adviser under the U.S.
          Investment Advisers Act of 1940 (the "Advisers Act"), is authorized to
          undertake  investment  business in the United Kingdom by virtue of its
          membership  in  the  Investment  Management  Regulatory   Organisation
          ("IMRO") and is registered under the laws of any jurisdiction in which
          FCEM is required to be registered as an investment adviser in order to
          perform its obligations under this Agreement,  and will continue to be
          so registered for so long as this Agreement remains in effect; (ii) is
          not prohibited by the 1940 Act or the Advisers Act from performing the
          services  contemplated  by this  Agreement;  (iii)  has met,  and will
          continue to meet for so long as this Agreement remains in effect,  any
          other  applicable  Federal or State  requirements,  or the  applicable
          requirements  of any  regulatory or industry  self-regulatory  agency,
          necessary to be met in order to perform the services  contemplated  by
          this  Agreement;  (iv) has the authority to enter into and perform the
          services  contemplated by this Agreement;  (v) will immediately notify
          the Adviser and the  Sub-Adviser  in writing of the  occurrence of any
          event that would disqualify FCEM from serving as an investment adviser
          of an investment  company  pursuant to Section 9(a) of the 1940 Act or
          otherwise;  and (vi)  will  immediately  notify  the  Adviser  and the
          Sub-Adviser  in writing of any change of control of FCEM or any parent
          of FCEM resulting in an "assignment" of this Agreement.

          (b) It will maintain,  keep current and preserve on behalf of the
          Fund,  in the manner and for the periods of time required or permitted
          by the 1940 Act and the rules,  regulations and orders  thereunder and
          the Advisers  Act and the rules,  regulations  and orders  thereunder,
          records relating to investment  transactions made by FCEM for the Fund
          as may be reasonably requested by the Adviser or the Fund from time to
          time.  FCEM agrees that such records are the property of the Fund, and
          will be  surrendered  to the Fund  promptly  upon  request;  provided,
          however,  that FCEM may retain  copies of such  records  for  archival
          purposes as required by IMRO.

          (c) FCEM has adopted a written code of ethics  complying with the
          requirements  of Rule  17j-1  under  the 1940  Act and,  if it has not
          already  done so, will provide the Adviser,  the  Sub-Adviser  and the
          Trust with a copy of such code of ethics,  and upon any  amendment  to
          such  code of  ethics,  promptly  provide  such  
<PAGE>

          amendment.  At least  annually  FCEM will provide the Trust,  the
          Sub-Adviser  and the Adviser  with a  certificate  signed by the chief
          compliance  officer (or the person  performing  such function) of FCEM
          certifying,  to the best of his or her knowledge,  compliance with the
          code of ethics  during the  immediately  preceding  twelve  (12) month
          period, including any material violations of or amendments to the code
          of ethics or the administration thereof.

          (d) It has provided the Adviser,  the  Sub-Adviser  and the Trust
          with a copy of its Form ADV as most recently filed with the Securities
          and Exchange  Commission  (the "SEC") and will,  promptly after filing
          any  amendment  to its Form ADV with the SEC,  furnish  a copy of such
          amendment to the Adviser, the Sub-Adviser and the Trust.

         11. Duration and  Termination of this  Agreement.  This Agreement shall
become  effective on the date first above written and shall govern the relations
between the parties hereto  thereafter,  and shall remain in force until Janaury
2,  1999  and  each  year  thereafter  but  only so long as its  continuance  is
"specifically  approved at least  annually" (a) by the vote of a majority of the
Trustees  of the  Trust  who are not  "interested  persons"  of the  Trust,  the
Adviser,  the  Sub-Adviser  or FCEM at a  meeting  specifically  called  for the
purpose  of voting on such  approval,  and (b) by the Board of  Trustees  of the
Trust,  or by "vote of a majority of the outstanding  voting  securities" of the
Fund.  This  Agreement  may be terminated at any time without the payment of any
penalty by the Trustees of the Trust,  by "vote of a majority of the outstanding
voting securities" of the Fund or by the Adviser or the Sub-Adviser, on not more
than sixty days nor less than thirty days written notice, or by FCEM on not more
than ninety days nor less than sixty days written  notice.  This Agreement shall
automatically  terminate in the event of its  "assignment"  or in the event that
the FCM Sub-Advisory  Agreement or the Advisory  Agreement shall have terminated
for any reason.

         12. Amendments to this Agreement. This Agreement may be amended only if
such  amendment  is approved by "vote of a majority  of the  outstanding  voting
securities" of the Fund, by the Adviser, by the Sub-Adviser and by FCEM.

         13.  Certain  Definitions.  The terms  "specifically  approved at least
annually",   "vote  of  a  majority  of  the  outstanding  voting   securities",
"assignment",  "control", "affiliated person" and "interested person", when used
in this Agreement,  shall have the respective meanings  specified,  and shall be
construed in a manner  consistent with, the 1940 Act and the rules,  regulations
and orders thereunder, subject, however, to such exemptions as may be granted by
the SEC under the 1940 Act.

         14.  Survival  of  Representations  and  Warranties;   Duty  to  Update
Information. All representations and warranties made by FCEM pursuant to Section
9 hereof  shall  survive  for the  duration  of this  Agreement  and FCEM  shall
immediately  notify,  but in no event  later than five (5)  business  days,  the
Adviser  and the  Sub-Adviser  in writing  upon  becoming  aware that any of the
foregoing representations and warranties are no longer true.

         15. Miscellaneous. This Agreement shall be governed by and construed in
accordance  with the internal laws of The  Commonwealth  of  Massachusetts.  All
notices  provided for by this Agreement  shall be in writing and shall be deemed
given when 
<PAGE>
received,  against appropriate  receipt,  by the Sub-Adviser's  Secretary in the
case of the  Sub-Adviser,  by the Adviser's  General  Counsel in the case of the
Adviser, by FCEM's Secretary in the case of FCEM and by the Trust's Secretary in
the case of the Fund, or such other person as a party shall  designate by notice
to the other parties.  This Agreement constitutes the entire agreement among the
parties hereto and supersedes any prior agreement among the parties  relating to
the subject  matter  hereof.  The section  headings  of this  Agreement  are for
convenience of reference and do not constitute a part hereof.

                IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed and  delivered  in their names and on their behalf by the  undersigned,
thereunto duly authorized,  and their respective seals to be hereto affixed, all
as of the day and year first written above.

                                       FOREIGN & COLONIAL
                                         MANAGEMENT LTD.

                                       By:   JAMES OGLIVY
                                             James Ogilvy

                                       By:   JONATHAN LUBRAN
                                             Jonathan Lubran

                                       FOREIGN & COLONIAL
                                         EMERGING MARKETS
                                         LIMITED

                                       By:   AUDLEY TWISTON DAVIES
                                             Audley Twiston Davies
<PAGE>
The foregoing is hereby agreed to:

         A copy of the  Declaration  of Trust of the  Trust is on file  with the
Secretary of State of The  Commonwealth  of  Massachusetts.  The parties  hereto
acknowledge  that the  obligations of or arising out of this  instrument are not
binding  upon  any of the  Trust's  trustees,  officers,  employees,  agents  or
shareholders  individually,  but are binding solely upon the assets and property
of the Trust in accordance with its proportionate  interest  hereunder.  If this
instrument  is  executed  by the Trust on  behalf  of one or more  series of the
Trust,  the parties hereto  acknowledge  that the assets and liabilities of each
series of the Trust are separate and  distinct  and that the  obligations  of or
arising out of this instrument are binding solely upon the assets or property of
the series on whose behalf the Trust has executed this instrument.  If the Trust
has executed this instrument on behalf of more than one series of the Trust, the
parties hereto also agree that the obligations of each series hereunder shall be
several and not joint, in accordance with its proportionate  interest hereunder,
and  the  parties  hereto  agree  not to  proceed  against  any  series  for the
obligations of another series.

MFS SERIES TRUST I
  on behalf of MFS RESEARCH INTERNATIONAL FUND


By:      A. KEITH BRODKIN
         A. Keith Brodkin
         Chairman

<PAGE>
                                                          EXHIBIT NO. 99.9(b)


                                 MFS SERIES TRUST I
                   500 Boylston Street o Boston o Massachusetts o 02116
                                   (617) o 954-5000



                                       January 1, 1997



MFS Service Center, Inc.
500 Boylston Street
Boston, MA 02116

Dear Sir/Madam:

This will confirm our understanding that Exhibit B to the Shareholder  Servicing
Agent Agreement between us, dated August 1, 1985, as amended, is hereby amended,
effective  immediately,  to read in its  entirety as set forth on  Attachment  1
hereto.

Please indicate your acceptance of the foregoing by signing below.

                                       Sincerely,

                                       MFS SERIES TRUST I



                                       By:    W. THOMAS LONDON
                                              W. Thomas London
                                              Treasurer


Accepted and Agreed:

MFS SERVICE CENTER, INC.



By:     JOSEPH W. DELLO RUSSO
        Joseph W. Dello Russo
        Treasurer
<PAGE>
                                                                ATTACHMENT 1
                                                               January 1, 1997


                            EXHIBIT B TO THE SHAREHOLDER
                          SERVICING AGENT AGREEMENT BETWEEN
                           MFS SERVICE CENTER, INC. ("MFSC")
                          AND MFS SERIES TRUST I (the "Fund")


The fees to be paid by the Fund on  behalf of its  series  with  respect  to all
shares of each series of the Fund to MFSC,  for MFSC's  services as  shareholder
servicing agent, shall be 0.13% of the average daily net assets of the Fund.

<PAGE>
                                                            EXHIBIT NO. 99.9(e)



                         THIRD AMENDMENT TO LOAN AGREEMENT



         This Third  Amendment to the Loan  Agreement,  dated as of February 21,
1995, as heretofore amended (as so amended, the "Loan Agreement"),  by and among
the  Persons  listed  on  Exhibit  A to the Loan  Agreement  (collectively,  the
"Borrowers",  and each individually a "Borrower"), the Banks listed on Exhibit F
to the Loan  Agreement  (collectively,  the  "Banks",  and each  individually  a
"Bank"), and The First National Bank of Boston, as agent (the "Agent"),  is made
as of  February  14,  1997.  Unless  otherwise  indicated  or unless the context
otherwise  requires,  capitalized terms used herein without definition which are
defined in the Loan  Agreement  shall have the meanings  ascribed to them in the
Loan Agreement.

                                                     Recitals


         WHEREAS,  the Borrowers  desire to amend the Loan Agreement to increase
the Maximum  Commitment  Amount by Fifty Million Dollars  ($50,000,000)  to Four
Hundred Million Dollars  ($400,000,000),  and to add Citibank N.A. as a party to
the Loan Agreement; and

         WHEREAS,  the Banks and the  Agent  are  willing  to amend the Loan  
Agreement  to  increase  the  Maximum Commitment Amount and to add Citibank N.A.
as a party thereto; and

         WHEREAS,  the  Banks,  the  Borrowers  and the Agent  desire to make  
certain  other  changes  to the Loan Agreement;

         NOW, THEREFORE,  in furtherance of the foregoing,  and in consideration
of mutual promises and other good and valuable  consideration  each to the other
given, the receipt of which is hereby acknowledged,  the parties hereto agree as
follows:

SECTION 1.    Amendments to Loan Agreement

         (a)  Section 1.01 of the Loan  Agreement is hereby  amended by deleting
the definition of "Exempted Borrower" in its entirety.

         (b)  Section  1.01 of the Loan  Agreement is hereby  further amended by
deleting the third line of the definition of "Maximum  Commitment  Amount",  and
substituting in lieu thereof the following:

              "...hereunder, which in the first instance shall be $400,000,000,
               as..."
<PAGE>
         (c) Section 2.13 of the Loan  Agreement  is hereby  amended by deleting
the fifth and sixth lines of said Section 2.13; and substituting in lieu thereof
the following:

              "...in the  aggregate  for all of the  Borrowers  to seven (7) 
               basis  points  (7/100 of 1%) per annum of the average daily 
               unused..."

         (d) Section 2.14 of the Loan  Agreement  is hereby  amended by deleting
said  Section  2.14  in its  entirety,  and  substituting  in lieu  thereof  the
following:

             "Section  2.14.  Use of  Proceeds.  Each  Borrower  will  use the
              proceeds of the Loans solely for temporary or emergency purposes,
              including,   without  limitation,   the  temporary  financing  of
              repurchases or  redemptions of Shares of such Borrower,  provided
              that  such  use  of  proceeds  shall  either  (i)  constitute  an
              "Exempted  Transaction"  as  described  in  section  221.6(f)  of
              Regulation  U(12 CFR Part  221) of the  Board or shall  otherwise
              constitute  an  "Exempted   Transaction"   under,  or  shall  not
              constitute a "purpose  credit" for purposes of,  Regulation U, or
              (ii) such use of proceeds shall not otherwise cause such Loans to
              violate the  provisions  of  Regulation  U. Without  limiting the
              foregoing, no Borrower will, directly or indirectly, use any part
              of  such  proceeds  for  any  purpose  which  would  violate  any
              provision  of  any  applicable  statute,   regulation,  order  or
              restriction.  In the event that the  proposed  use of proceeds of
              any  Loan  to  a  Borrower  shall  not  constitute  an  "Exempted
              Transaction" under Regulation U, but shall nonetheless constitute
              a "purpose  credit" for purposes  thereof,  the Borrower,  at the
              time the Borrowing  Request is made, shall furnish each Bank with
              a  statement  in  conformity  with the  requirements  of  Federal
              Reserve Form F.R. U-1 referred to in said Regulation U."

         (e) Section 7.01 of the Loan  Agreement  is hereby  amended by deleting
the first twelve lines of text following paragraph (i) thereof, and substituting
in lieu thereof the following:

              "then, and in any such event, and at any time thereafter, if
               any Event of Default shall then be  continuing  with respect
               to such  Borrower,  (i) in the case of any Event of  Default
               specified  in paragraph  (g) above,  the  Commitments  shall
               thereupon  automatically  be terminated and the principal of
               and accrued interest on the Loans shall automatically become
               due and  payable  without  presentment,  demand,  protest or
               other  notice or  formality  of any  kind,  all of which are
               hereby expressly  waived,  and (ii) in the case of any other
               Event of  Default  specified  above,  either  or both of the
               following  actions may be taken: the Agent may, and upon the
               written or telephonic  (confirmed in writing) request of the
               Majority Banks shall, by written notice to such Borrower (A)
               declare the principal of and accrued  interest in respect of
               such  Borrower's  Loans  to be  forthwith  due and  payable,
               whereupon the  principal of and accrued  interest in respect
               of such Loans shall become forthwith due and payable without
               presentment,  demand,  protest or other  notice of any kind,
               all of which are hereby 
<PAGE>

               expressly  waived by such Borrower, and/or (B) terminate the 
               Commitments  as to such  Borrower, whereupon the ..."

         (f) Section 11.01 of the Loan  Agreement is hereby  amended by deleting
said  Section  11.01 in its  entirety;  and  substituting  in lieu  thereof  the
following:

               "Section 11.01. Term and Termination of Agreement. This Agreement
               and  the  Commitments  shall  continue  for a term  of  364  days
               beginning   February  14,  1997,  unless  earlier  terminated  in
               accordance with Sections 2.02, 7.01 or 11.03 hereof,  and may, at
               the discretion of the Banks,  be renewed for successive  terms of
               364 days as  hereinafter  provided.  The Agent,  on behalf of the
               Banks,  shall notify the Borrower Agents in writing not less than
               thirty  (30) days  prior to the  expiration  of any such term (an
               "Expiration  Date")  if  the  Banks  are  willing  to  renew  the
               Commitments  hereunder (a "Renewal Notice"),  in which event this
               Agreement and the  Commitments  shall  continue for an additional
               term  of  364  days,  unless  terminated  earlier  in  accordance
               herewith.  If the Agent does not furnish a Renewal  Notice to the
               Borrower  Agents at least 30 days prior to any Expiration Date as
               aforesaid,  the  Commitments  and the Banks'  obligations to make
               Loans  hereunder shall terminate on such Expiration Date and this
               Agreement  shall  terminate and be of no further force and effect
               except for (i) the  obligations  of the  Borrowers to pay any and
               all of their obligations  incurred hereunder or in respect hereof
               (including  the  payment of the entire  unpaid  principal  of and
               accrued interest on the Loans and the payment in full of all fees
               and expenses  provided  for  herein),  and (ii) the rights of the
               Borrowers pursuant to section 2.13 hereof to be reimbursed costs,
               if any, recovered by the Banks."

         (g)  Section  12.04(c)  of the Loan  Agreement  is  hereby  amended  by
deleting said Section 12.04(c) in its entirety, and substituting in lieu thereof
the following:

               "(c) if to the Agent:

               The First National Bank of Boston 
               Financial Institutions Division
               100 Federal Street, 01-10-07 
               Boston, MA 02110 
               Attention: Carol A. Clark, Director

               with copies to:

               Joel H. Peterson, Esquire 
               Erickson,  Schaffer & Peterson, P.C. 
               20 William Street, Suite 150 
               Wellesley, MA 02181"

         (h) Exhibit F to the Loan  Agreement is hereby amended by deleting said
Exhibit F in its entirety,  and  substituting in lieu thereof Exhibit F appended
hereto.
<PAGE>

SECTION 2. Representations and Warranties.  In order to induce the Banks and the
Agent to enter into this  Third  Amendment,  each  Borrower,  severally  and not
jointly, makes the following representations and warranties,  all of which shall
survive the execution and delivery of this Third Amendment:

         (a) The  Borrower  has  adequate  power and  authority  to execute  and
deliver this Third Amendment and to perform its obligations  hereunder and under
the Loan Agreement as amended hereby.

         (b) The execution, delivery and performance of this Third Amendment has
been duly authorized by all necessary  action on the part of the Borrower,  will
not result in a violation  of or be in  conflict  with or  constitute  a default
under any term of the Prospectus or Registration  Statement,  as applicable,  of
the  Borrower,  or of its charter,  declaration  of trust or by-laws,  or of any
investment,  borrowing or other similar type of policy or  restriction  to which
the  Borrower  is subject or of any  agreement,  instrument,  judgment,  decree,
order, statute,  rule or governmental  regulation applicable to the Borrower, or
result in the creation of any mortgage,  lien, charge or encumbrance upon any of
the properties or assets of the Borrower pursuant to any such term.

         (c) This  Third  Amendment  effectively  amends the Loan  Agreement  in
accordance with the terms hereof.  The obligations of the Borrower hereunder and
under the Loan  Agreement  as amended  hereby  constitute  the legal,  valid and
binding  obligations  of  the  Borrower  enforceable  against  the  Borrower  in
accordance with their respective terms.

         (d) All of the  representations  and warranties made by the Borrower in
the Loan Agreement, including those in Article III thereof, are true and correct
on the date  hereof as if made on and as of the date  hereof and are so repeated
herein,  except that  representations and warranties of financial  statements or
conditions as of an earlier date relate solely to such earlier date.

         (e) Upon the execution and delivery of this Third  Amendment,  no Event
of Default, nor any event which with the giving of notice or the passage of time
or both would constitute an Event of Default, shall exist and be continuing.

SECTION  3.  Conditions  Precedent.  The  agreements  contained  herein  and the
amendments  contemplated  hereby shall become  effective on the date when all of
the parties  hereto shall have  executed a copy hereof and shall have  delivered
the same to the Banks and the  Agent and when each of the  following  conditions
shall have been fulfilled:

         (a) The Agent shall have received from each Borrower,  with  sufficient
copies  for each  Bank,  copies  of all  resolutions  of its  Board of  Trustees
authorizing (i) its execution and delivery of this Third Amendment, and (ii) its
performance  of all of its agreements  and  obligations  hereunder and under the
Loan  Agreement  as amended  hereby,  certified  by the  Secretary  or Assistant
Secretary of the Borrower;
<PAGE>

         (b) Each  Borrower  shall have  performed  and complied in all material
respects  with all terms and  conditions  herein  required  to be  performed  or
complied with by it on or prior to the date hereof,  and the consummation of the
transactions  on the date  hereof  shall not result in an Event of Default or in
any event  which with the giving of notice or the  passage of time or both would
constitute an Event of Default;

         (c) The Agent shall have received from each Borrower,  with  sufficient
copies  for  each  Bank,  a  certificate  dated  as of the  date of  this  Third
Amendment,  in form and substance  satisfactory  to the Banks and the Agent,  in
which such Borrower  shall  represent and warrant to the Banks and the Agent all
matters  set forth in Section 2 hereof and shall  represent  and  warrant to the
Banks and the Agent the conditions  precedent set forth in paragraph (b) of this
Section 3 are satisfied at and as of the Date of this Third Amendment;

         (d) The Agent and the Banks shall have  received all other  information
and  documents  which the Agent or any Bank may  reasonably  have  requested  in
connection  with the  transactions  contemplated  hereunder  and  under the Loan
Agreement as amended hereby, such information and documents,  where appropriate,
to be  certified  by the proper  officers of each  Borrower  or by  governmental
authorities.

SECTION 4.  Ratification  of Existing  Agreements,  Etc.  All of the  Borrowers'
obligations  to the  Banks  and  the  Agent  under  or in  respect  of the  Loan
Agreement, except as otherwise expressly modified or contemplated to be modified
in this Third Amendment,  are hereby ratified and confirmed in all respects, and
as so ratified and confirmed  constitute legal, valid and binding obligations of
the  Borrowers  enforceable  against  the  Borrowers  in  accordance  with their
respective terms.

SECTION 5.          Miscellaneous.

         (a) This Third  Amendment may be executed on separate  counterparts  by
the parties  hereto,  each of which when so executed and  delivered  shall be an
original, but all of which shall constitute one and the same agreement.

         (b) This Third  Amendment and the rights and obligations of the parties
hereunder  shall be construed in accordance  with and be governed by the laws of
The Commonwealth of Massachusetts (without giving effect to the conflict of laws
principles thereof).

         (c) The headings of the several  sections of this Third  Amendment  are
inserted  for  convenience  only and shall not in any way effect the  meaning or
construction of any provision of this Third Amendment.

         (d) Each  officer  executing  this  Third  Amendment  on behalf of each
Borrower,  which is a trust or a  Massachusetts  business trust, is signing this
Third  Amendment  not  individually,  but in his  capacity as an officer of such
Borrower,  and the  obligations of such Borrower under this Third  Amendment and
under the Loan  Agreement,  as amended  hereby,  are not binding upon any of the
Trustees,   officers,   employees,  agents  or  Shareholders  of  such  Borrower
individually, but bind only the trust estate of such Borrower.
<PAGE>

         IN WITNESS  WHEREOF,  each of the parties  hereto has caused this Third
Amendment to be duly  executed by its duly  authorized  officer as an instrument
under seal in The  Commonwealth  of  Massachusetts  as of the day and year first
above written.

                                   MASSACHUSETTS INVESTORS TRUST

                                   MASSACHUSETTS INVESTORS GROWTH STOCK FUND

                                   MFS GROWTH OPPORTUNITIES FUND

                                   MFS GOVERNMENT SECURITIES FUND

                                   MFS GOVERNMENT LIMITED MATURITY FUND

                                   MFS SERIES TRUST I, on behalf of MFS Managed
                                   Sectors  Fund, MFS Cash  Reserve  Fund,  MFS 
                                   World Asset  Allocation  Fund,  MFS
                                   Special  Opportunities  Fund, MFS  Aggressive
                                   Growth Fund,  MFS Research Growth and Income 
                                   Fund,  MFS Equity Income Fund and MFS Core 
                                   Growth Fund

                                   MFS SERIES TRUST II, on behalf of MFS  
                                   Emerging  Growth Fund, MFS Capital Growth 
                                   Fund, MFS Gold & Natural  Resources
                                   Fund and MFS Intermediate Income Fund

                                   MFS SERIES  TRUST III,  on behalf of MFS High
                                   Income Fund and MFS Municipal High Income 
                                   Fund

                                   MFS  SERIES TRUST IV, on behalf of MFS Money
                                   Market  Fund,  MFS Government Money Market 
                                   Fund, MFS Municipal Bond Fund and MFS OTC
                                   Fund

                                   MFS SERIES TRUST V, on behalf of MFS Research
                                   Fund and MFS Total Return Fund

                                   MFS SERIES TRUST VI, on behalf of MFS 
                                   Utilities  Fund,  MFS World Total Return Fund
                                   and MFS World Equity Fund

                                   MFS SERIES  TRUST VII,  on behalf of MFS 
                                   Value Fund and MFS World Governments Fund
<PAGE>


                                   MFS SERIES TRUST VIII, on behalf of MFS 
                                   Strategic Income Fund and MFS World Growth 
                                   Fund

                                   MFS  SERIES  TRUST IX, on behalf of MFS Bond
                                   Fund,  MFS  Limited Maturity Fund and MFS 
                                   Municipal Limited Maturity Fund

                                   MFS SERIES TRUST X, on behalf of MFS  
                                   Government  Mortgage  Fund, MFS/Foreign & 
                                   Colonial Emerging Markets Equity Fund,  MFS/
                                   Foreign and Colonial International Growth and
                                   Income Fund and MFS/Foreign & Colonial 
                                   International Growth Fund

                                   MFS MUNICIPAL  SERIES TRUST,  on behalf of 
                                   MFS Alabama  Municipal Bond Fund,  MFS  
                                   Arkansas Municipal Bond Fund, MFS California
                                   Municipal Bond Fund, MFS Florida Municipal 
                                   Bond Fund, MFS Georgia Municipal  Bond Fund,
                                   MFS  Louisiana  Municipal  Bond Fund,  MFS
                                   Maryland  Municipal Bond Fund, MFS  
                                   Massachusetts  Municipal Bond Fund, MFS 
                                   Mississippi Municipal Bond Fund, MFS New York
                                   Municipal Bond  Fund,  MFS  North Carolina   
                                   Municipal  Bond  Fund,  MFS Pennsylvania  
                                   Municipal Bond Fund,  MFS South Carolina  
                                   Municipal Bond Fund, MFS Tennessee Municipal 
                                   Bond Fund, MFS Texas Municipal Bond Fund,  
                                   MFS  Virginia  Municipal  Bond Fund,  MFS  
                                   Washington Municipal  Bond Fund,  MFS West 
                                   Virginia  Municipal Bond Fund and MFS 
                                   Municipal Income Fund

                                   MFS SPECIAL VALUE TRUST

                                   MFS CHARTER INCOME TRUST

                                   MFS INTERMEDIATE INCOME TRUST

                                   MFS GOVERNMENT MARKETS INCOME TRUST

                                   MFS MUNICIPAL INCOME TRUST



<PAGE>
                                   MFS VARIABLE  INSURANCE  TRUST,  on behalf of
                                   MFS Emerging Growth Series, MFS Value Series,
                                   MFS Research  Series,  MFS Growth and
                                   Income Series, MFS Total Return Series, MFS 
                                   Utilities Series, MFS High Income Series,  
                                   MFS World Government  Series,  MFS Strategic
                                   Fixed Income Series, MFS Bond Series, MFS 
                                   Limited Maturity Series and MFS Money Market 
                                   Series

                                   MFS INSTITUTIONAL TRUST, on behalf of MFS 
                                   Institutional Worldwide Fixed Income Fund,
                                   MFS Institutional Emerging Equities Fund, MFS
                                   Institutional Emerging Markets Fixed Income
                                   Fund, MFS Institutional  Core Plus Fixed  
                                   Income  Fund,  MFS  Institutional
                                   Research Fund, MFS  Institutional  Mid-Cap 
                                   Growth Equity Fund and MFS Institutional 
                                   International Equity Fund

                                   MFS UNION  STANDARD  TRUST, on behalf of MFS 
                                   Union Standard Equity Fund and MFS Union 
                                   Standard Research Fund



                                   By: W. THOMAS LONDON 
                                       W. Thomas London Treasurer

THE FIRST NATIONAL BANK            ABN AMRO BANK N.V. NEW YORK BRANCH
  OF BOSTON



By:      CAROL A. CLARK            By:     STELLA MILENO

Name:    Carol A. Clark            Name:   Stella Mileno

Title:   Managing Director         Title:  Group Vice President


                                   By:     VICTOR J. FENNON

                                   Name:   Victor J. Fennon

                                   Title:  Vice President

<PAGE>


THE CHASE MANHATTAN BANK           STATE STREET BANK AND TRUST
                                     COMPANY



By:      ROGER A. PARKER           By:     R. THOMAS COFFEY

Name:    Roger A. Parker           Name:   R. Thomas Coffey

Title:   Vice President            Title:  Vice President



UNION BANK OF                      CITIBANK N.A.
  CALIFORNIA, N.A.



By:      DAVID C. HANTS            By:     YUSSUR ABRAN

Name:    David C. Hants            Name:   Yussur Abran

Title:   Vice President            Title:   Vice President



THE FIRST NATIONAL BANK
  OF BOSTON, as Agent



By:      CAROL A. CLARK

Name:    Carol A. Clark

Title:   Managing Director


<PAGE>


                               EXHIBIT F


                      Banks; Addresses; Commitments


The First National Bank of Boston
Financial Institutions
100 Federal Street, 01-10-07
Boston, MA  02110
Telecopy No. (617) 434-1537
Attention:   Carol A. Clark
             Director

Commitment Amount:       $ 75,000,000
Commitment Percentage:   18.750%



ABN AMRO Bank N.V.
New York Branch
500 Park Avenue, 2nd Floor
New York, NY  10022
Telecopy No. (212) 446-4335
Attention:   John Kirk
             Vice President

Commitment Amount:       $ 75,000,000
Commitment Percentage:   18.750%



The Chase Manhattan Bank
Chase Securities, Inc.
270 Park Avenue
New York, NY  10017-2070
Telecopy No. (212) 270-5222
Attention:   David Cintron
             Vice President

Commitment Amount:       $ 75,000,000
Commitment Percentage:   18.750%





<PAGE>


State Street Bank and Trust Company
1776 Heritage Drive
North Quincy, MA  02171
Telecopy No.        (617) 537-5194
Attention:          David V. Cox
                    Vice President

Commitment Amount:  $ 62,500,000
Commitment Percentage:                      15.625%



Union Bank of California, N.A.
350 California Street, 11th Floor
San Francisco, CA  94104
Telecopy No.        (415) 705-7037
Attention:          David C. Hants
                    Vice President

Commitment Amount:  $ 62,500,000
Commitment Percentage:                      15.625%



Citibank N.A.
Citicorp Securities, Inc.
399 Park Avenue, 12th Floor
New York, NY  10043
Telecopy No.        (212) 371-6309
Attention:          Yussur A.F. Abrar
                    Vice President

Commitment Amount:  $ 50,000,000
Commitment Percentage:                      12.500%

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  091
     <NAME>    MFS BLUE CHIP FUND - CLASS A
<MULTIPLIER>   1
       

<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                           602664
<INVESTMENTS-AT-VALUE>                          625744
<RECEIVABLES>                                     1113
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                              5991
<TOTAL-ASSETS>                                  632848
<PAYABLE-FOR-SECURITIES>                          4707
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           26
<TOTAL-LIABILITIES>                               4733
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        603679
<SHARES-COMMON-STOCK>                            43773
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                          880
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            476
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         23080
<NET-ASSETS>                                    628115
<DIVIDEND-INCOME>                                 1509
<INTEREST-INCOME>                                  771
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    1400
<NET-INVESTMENT-INCOME>                            880
<REALIZED-GAINS-CURRENT>                           476
<APPREC-INCREASE-CURRENT>                        23080
<NET-CHANGE-FROM-OPS>                            24436
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          43894
<NUMBER-OF-SHARES-REDEEMED>                      (121)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          628115
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              595
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  11750
<AVERAGE-NET-ASSETS>                            606546
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                   0.01
<PER-SHARE-GAIN-APPREC>                           0.42
<PER-SHARE-DIVIDEND>                              0.00
<PER-SHARE-DISTRIBUTIONS>                         0.00
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              10.43
<EXPENSE-RATIO>                                   1.50
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  092
     <NAME>    MFS BLUE CHIP FUND - CLASS I
<MULTIPLIER>   1
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                           602664
<INVESTMENTS-AT-VALUE>                          625744
<RECEIVABLES>                                     1113
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                              5991
<TOTAL-ASSETS>                                  632848
<PAYABLE-FOR-SECURITIES>                          4707
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                           26
<TOTAL-LIABILITIES>                               4733
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        603679
<SHARES-COMMON-STOCK>                            16448
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                          880
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            476
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                         23080
<NET-ASSETS>                                    628115
<DIVIDEND-INCOME>                                 1509
<INTEREST-INCOME>                                  771
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    1400
<NET-INVESTMENT-INCOME>                            880
<REALIZED-GAINS-CURRENT>                           476
<APPREC-INCREASE-CURRENT>                        23080
<NET-CHANGE-FROM-OPS>                            24436
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          16449
<NUMBER-OF-SHARES-REDEEMED>                        (1)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          628115
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              595
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                  11750
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  101
     <NAME>    MFS CONVERTIBLE SECURITIES FUND - CLASS A
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  102
     <NAME>    MFS CONVERTIBLE SECURITIES FUND - CLASS I
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                           541518
<INVESTMENTS-AT-VALUE>                          548992
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  111
     <NAME>    MFS NEW DISCOVERY FUND - CLASS A
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                          1686286
<INVESTMENTS-AT-VALUE>                         1680953
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<PAYABLE-FOR-SECURITIES>                         59542
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<TOTAL-LIABILITIES>                              59615
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       1742008
<SHARES-COMMON-STOCK>                            37384
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<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  112
     <NAME>    MFS NEW DISCOVERY FUND - CLASS I
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                          1686286
<INVESTMENTS-AT-VALUE>                         1680953
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<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER> 121
     <NAME>    MFS RESEARCH INTERNATIONAL FUND - CLASS A
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                          2113386
<INVESTMENTS-AT-VALUE>                         2076433
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<PAYABLE-FOR-SECURITIES>                        126955
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<TOTAL-LIABILITIES>                             127035
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       1988844
<SHARES-COMMON-STOCK>                           140561
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<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  122
     <NAME>    MFS RESEARCH INTERNATIONAL FUND - CLASS I
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                          2113386
<INVESTMENTS-AT-VALUE>                         2076433
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<PAID-IN-CAPITAL-COMMON>                       1988844
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<AVG-DEBT-PER-SHARE>                              0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  131
     <NAME>    MFS SCIENCE AND TECHNOLOGY FUND - CLASS A
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                          2198963
<INVESTMENTS-AT-VALUE>                         2162249
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000798244
<NAME> MFS SERIES TRUST I
<SERIES>
     <NUMBER>  132
     <NAME>    MFS SCIENCE AND TECHNOLOGY FUND - CLASS I
<MULTIPLIER>   1
<PAGE>
       
<S>                             <C>
<PERIOD-TYPE>                   2-MOS
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             JAN-02-1997
<PERIOD-END>                               FEB-28-1997
<INVESTMENTS-AT-COST>                          2198963
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