SMMU is an actively managed fund in a segment that seeks to hold a broad array of short-term, investment-grade municipal bonds with a weighted average maturity of no more than three years. The fund selects municipal bonds that are not subject to federal alternative minimum tax and focuses on bonds that can potentially provide attractive current yields or prices. The fund may invest 25% or more of its total assets in municipal bonds that finance projects such as those relating to education, health care, housing, transportation, and utilities, and 25% or more of its total assets can be invested in industrial development bonds. As an actively managed fund, SMMU may make certain investment decisions at their own discretion.