Forum Funds

Three Canal Plaza, Suite 600

Portland, Maine 04101

February 23, 2016

EDGAR FILING

U.S. Securities and Exchange Commission

100 F Street, NE

Washington, DC 20549

Re:               Forum Funds (the “Trust” or “Registrant”)

File Nos. 002-67052/811-03023

Filing Pursuant to Rule 497(e)

Ladies and Gentlemen:

Enclosed for filing pursuant to Rule 497(e) of the Securities Act of 1933, as amended, (the “1933 Act”) are exhibits containing interactive data format risk/return summary information that reflects the risk/return summary information in the supplement dated February 5, 2016  to the Prospectus dated  August 1, 2015, for the Absolute Credit Opportunities Fund, a series of the Registrant, as filed pursuant to Rule 497(e) under the 1933 Act (Accession Number: 0001435109-16-001324).

If you have any questions or comments concerning the foregoing, please contact me at (207) 347-2076 or by email at zac.tackett@atlanticfundservices.com.

Sincerely,

/s/ Zachary R. Tackett

Zachary R. Tackett, Esq.

Vice President and Secretary to the Registrant

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