MFS(R) Emerging Growth Fund
MFS(R) Research Fund
MFS(R) Capital Opportunities Fund
MFS(R) Money Market Fund
Supplement to the Current Prospectus
Class A shares of the Fund may be purchased at net asset value by one or more
Chilean retirement plans, known as Administradores de Fondos de Pensiones, which
are clients of the 1850 K Street N.W., Washington D.C. office of Dean Witter
Reynolds, Inc. ("Dean Witter").
MFS Fund Distributors, Inc. ("MFD") will waive any applicable contingent
deferred sales charges upon redemption by such retirement plans on purchases of
Class A shares over $1 million, provided that (i) in lieu of the commissions
otherwise payable as specified in the prospectus, MFD will pay Dean Witter a
commission on such purchases equal to 1.00% (including amounts in excess of $5
million) and (ii) if one or more such clients redeem all or a portion of these
shares within three years after the purchase thereof, Dean Witter will reimburse
MFD for the commission paid with respect to such shares on a pro rata basis
based on the remaining portion of such three-year period.
The date of this Supplement is August 1, 1999.
