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MFS(R) INSTITUTIONAL TRUST
500 Boylston Street Boston Massachusetts 02116-3741
617 954 5000
October 29, 1998
VIA EDGAR
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, NW
Washington, DC 20549
Re: MFS Institutional Trust (the "Trust") (File Nos. 33-37615 and
811-6174) on Behalf of:
MFS(R) Institutional Emerging Equities Fund
MFS(R) Institutional Global Fixed Income Fund
MFS(R) Institutional Emerging Markets Debt Fund
MFS(R) Institutional International Equity Fund
MFS(R) Institutional Mid Cap Growth Fund
MFS(R) Institutional Research Fund
MFS(R) Institutional Core Fixed Income Fund
MFS(R) Institutional Core Equity Fund
MFS(R) Institutional Large Cap Growth Fund
MFS(R) Institutional High Yield Fund
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, as amended,
please accept this letter as certification that the Prospectus and Statement of
Additional Information for the Trust do not differ from those contained in
Post-Effective Amendment No. 17 (the "Amendment") to the Trust's Registration
Statement on Form N-1A. The Amendment was filed electronically on October 28,
1998.
Please call the undersigned or Nicole E. Leonard at (617) 954-5000
or (800) 343-2829 with any questions you may have.
Very truly yours,
JAMES R. BORDEWICK, JR.
James R. Bordewick, Jr.
Assistant Secretary
JRB/bjn
