ASG TACTICAL U.S. MARKET FUND

Supplement dated August 29, 2016 to the Prospectus and Statement of Additional Information of the ASG Tactical U.S. Market Fund (the “Fund”), each dated May 1, 2016, as may be revised and supplemented from time to time.

Active Investment Advisors, the division of NGAM Advisors, L.P. that is responsible for managing the equity securities portion of the Fund, changed its name to Active Index Advisors^SM on August 29, 2016. Accordingly, effective immediately, each reference to Active Investment Advisors in the Fund’s Prospectus and Statement of Additional Information is replaced with Active Index Advisors^SM.