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MFS EMERGING GROWTH FUND
MFS RESEARCH FUND
Supplement to the Current Prospectus
During the period from May 28, 1996 through August 26, 1996 (unless
extended by MFS Fund Distributors, Inc. ("MFD")) (the "Sales Period"), MFD will
pay Advest, Inc. ("Advest") 100% of the applicable sales charge on sales of
Class A shares of each of the funds listed above (the "Funds") sold by Advest
during the Sales Period. In addition, MFD will pay Advest an additional
commission equal to 0.50% of the net asset value of all of the Class B shares of
the Funds sold by Advest during the Sales Period.
The date of this Supplement is May 28, 1996.