The investment seeks to provide a high level of total return through a combination of capital appreciation and current income. The fund invests at least 80% of its net assets in securities of domestic or foreign companies that are involved to a substantial extent in providing products, services or equipment for the generation or distribution of electricity, gas, and water and the provision of infrastructure operations or telecommunications services. It may invest up to 40% of its total assets in securities of non-U.S. issuers, including in emerging markets.