The fund normally invests its assets primarily in a broad range of debt instruments and equity securities of U.S. and foreign issuers, including real estate-related investments and emerging market securities. MFS focuses the fund’s debt investments on investment grade quality corporate bonds, U.S. government securities, below investment grade quality debt instruments of developed market issuers, and debt instruments of emerging market issuers. MFS may invest up to 100% of these investments in below investment grade quality debt instruments.