Strategy. The Fund seeks to achieve its objectives by investing, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities that generate income exempt from Nebraska state income tax and from federal income tax, or in open or closed-end mutual funds which in turn invest in municipal securities, generally. The Fund may also invest up to 20% of its net assets in securities that pay interest that may be subject to the federal alternative minimum tax and, although not anticipated, in securities that pay taxable interest. The Fund will invest primarily in investment-grade securities. We consider investment grade to mean rated at least BBB- by one or more nationally … Show more… The Fund seeks to achieve its objectives by investing, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities that generate income exempt from Nebraska state income tax and from federal income tax, or in open or closed-end mutual funds which in turn invest in municipal securities, generally. The Fund may also invest up to 20% of its net assets in securities that pay interest that may be subject to the federal alternative minimum tax and, although not anticipated, in securities that pay taxable interest. The Fund will invest primarily in investment-grade securities. We consider investment grade to mean rated at least BBB- by one or more nationally recognized credit ratings firms. The Fund may also invest up to 20% of its total assets in debt securities which are unrated or non-investment grade securities (commonly referred to as high yield or junk bonds). The Fund may, but is not required to, use derivatives, such as options, futures and forward contracts, including interest rate futures, and options on futures. The Fund may use derivatives for a variety of purposes, including to attempt to hedge against adverse changes in the market price of securities, interest rates; as a substitute for purchasing or selling securities; to attempt to increase the fund's return; to manage portfolio characteristics; and as a cash flow management technique. The Fund may choose not to make use of derivatives for a variety of reasons, and any use may be limited by applicable law and regulations. These derivative instruments will count toward the Fund's 80% policy to the extent they have economic characteristics similar to the securities included within that policy. Although the Fund has no limitations on the maturities of individual securities, the average dollar-weighted maturity of the Fund is generally expected to be less than ten years. We select debt securities whose yield is sufficiently attractive in view of the risks of ownership. In deciding whether the Fund should invest in particular debt securities, we consider a number of factors such as price, coupon and yield-to-maturity, as well as the credit quality of the issuer. In addition, we review the terms of the debt security, including subordination, default, sinking fund, and early redemption provisions. If we determine that circumstances warrant, a greater portion of the Funds portfolio may be retained in cash and cash equivalents such as U.S. Government securities or other high-quality debt securities. In the event that the Fund takes such a temporary defensive position, it may not be able to achieve its investment objective during this temporary period. Show less