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MFS INSTITUTIONAL EMERGING EQUITIES FUND
MFS INSTITUTIONAL WORLDWIDE FIXED INCOME FUND
Supplement to the Current Prospectus
MFS has voluntarily agreed to extend an expense waiver arrangement for each Fund
that otherwise would have expired on June 30, 1997. In this arrangement, MFS had
voluntarily agreed to waive its management fee and/or bear expenses of the MFS
Institutional Emerging Equities Fund and the MFS Institutional Worldwide Fixed
Income Fund in order to maintain total expenses of each Fund at not more than
0.75% and 0.65%, respectively, of such Fund's average daily net assets until
June 30, 1997. MFS has voluntarily agreed to extend this waiver arrangement for
an indefinite period of time. This arrangement may be terminated or revised by
MFS at any time.
The date of this Supplement is June 30, 1997.
