Strategy. Under normal circumstances, we invest: at least 60% of the Funds net assets in municipal securities that pay interest exempt from federal income tax, but not necessarily the federal alternative minimum tax (AMT); up to 40% of the Funds net assets in municipal securities that pay interest subject to federal AMT; up to 40% of the Funds total assets in below investment-grade municipal securities; up to 20% of the Funds total assets in inverse floaters; and up to 10% of the Funds net assets in corporate debt securities. We invest principally in municipal securities of states, territories and possessions of the United States that pay interest exempt from federal income tax, but not necessarily federal AMT. Some of the securities … Show more… Under normal circumstances, we invest: at least 60% of the Funds net assets in municipal securities that pay interest exempt from federal income tax, but not necessarily the federal alternative minimum tax (AMT); up to 40% of the Funds net assets in municipal securities that pay interest subject to federal AMT; up to 40% of the Funds total assets in below investment-grade municipal securities; up to 20% of the Funds total assets in inverse floaters; and up to 10% of the Funds net assets in corporate debt securities. We invest principally in municipal securities of states, territories and possessions of the United States that pay interest exempt from federal income tax, but not necessarily federal AMT. Some of the securities may be below investment grade or may be unrated and deemed by us to be of comparable quality. Additionally, we may invest in debt securities of corporate issuers. These include traditional corporate bonds as well as bank loans. These securities may have fixed, floating, or variable rates. We may use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Funds dollar-weighted average effective maturity to be between 3 and 20 years. We may invest up to 20% of the Funds total assets in inverse floaters to seek enhanced returns. Inverse floaters are derivative debt instruments created by depositing a municipal security in a trust. Inverse floaters pay interest at rates that generally vary inversely with specified short-term interest rates and involve leverage. We intend to limit leverage created by the Funds investment in inverse floaters to an amount equal to 20% of the Funds total assets. We start our investment process with a top-down, macroeconomic outlook to determine portfolio duration and yield curve positioning as well as industry, sector and credit quality allocations. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, inflation, and monetary and fiscal policy. In combination with our top-down macroeconomic approach, we conduct intensive research on individual issuers to uncover solid investment opportunities, especially looking for bonds whose quality may be improving. Our security selection is based on several factors including, among others, improving financial trends, positive industry and sector dynamics, improving economic conditions, specific demographic trends and value relative to other securities. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold based on relative value considerations and could be replaced with a security that presents a better value or risk/reward profile. Show less