The investment seeks maximum total return from a combination of capital appreciation and current income. Under normal circumstances, the Portfolio invests at least 80% of its assets in fixed-income securities issued by corporations or other non-governmental issuers similar to corporations, which securities are tied economically to the U.S. It typically invests a substantial portion of its assets, and may invest up to 100% of its assets. The Portfolio may invest up to 20% of its assets in other securities which need not be fixed-income securities and need not be tied economically to the U.S.