Impax High Yield Bond Fund Investor Class

Under normal market conditions, the fund invests at least 80% of its assets (plus any borrowings for investment purposes) in high-yield, fixed income securities (such as bonds, notes or debentures) that are rated below BBB-by Standard & Poor's Ratings Group or below Baa3 by Moody's Investors Service, similarly rated by another major rating service, or unrated and determined by the fund's investment adviser to be of comparable quality.