Strategy. To pursue its investment objective, the Fund will invest, under normal circumstances, at least 80% of its net assets plus borrowings for investment purposes in bonds issued or guaranteed by the U.S. government or its agencies and instrumentalities (U.S. government securities). In addition, under normal circumstances, at least 90% of the value of the Funds investments in securities will consist of U.S. government securities. Bonds for this purpose include Treasury bills (maturities of less than one year), bonds (maturities of ten years or more) and notes (maturities of one to ten years) of the U.S. government. The Fund invests, under normal market conditions, in U.S. government securities, some of which may be subject to repurchase agreements, or in high grade … Show more… To pursue its investment objective, the Fund will invest, under normal circumstances, at least 80% of its net assets plus borrowings for investment purposes in bonds issued or guaranteed by the U.S. government or its agencies and instrumentalities (U.S. government securities). In addition, under normal circumstances, at least 90% of the value of the Funds investments in securities will consist of U.S. government securities. Bonds for this purpose include Treasury bills (maturities of less than one year), bonds (maturities of ten years or more) and notes (maturities of one to ten years) of the U.S. government. The Fund invests, under normal market conditions, in U.S. government securities, some of which may be subject to repurchase agreements, or in high grade (rated at the time of purchase in one of the three highest rating categories by a nationally recognized statistical rating organization or are determined by the portfolio manager to be of comparable quality) mortgage-backed securities, including collateralized mortgage obligations. The Fund will also invest in short-term obligations, asset-backed securities, corporate bonds, municipal securities and the shares of other investment companies. The Fund may also invest in Yankee bonds, which are U.S.-dollar denominated bonds and notes issued by foreign corporations or governments. The Fund will maintain an average duration between 2.5 and 7 years. The Funds dollar-weighted average maturity is expected to be more than 3 years but less than 10 years. Duration is the expected life of a fixed income security and is used to determine the sensitivity of the securitys price to changes in interest rates. Maturity merely measures the time until final payment is due. Unlike maturity, duration accounts for the time until all payments of interest and principal on a security are expected to be made, including how these payments are affected by prepayments and by changes in interest rates. In managing the portfolio, the portfolio manager uses a top down investment management approach focusing on duration, yield curve structure and sector allocation based upon economic outlook and market expectations. The portfolio manager then selects individual securities consistent with the target by looking for the best relative values within particular sectors. The portfolio manager may consider selling a security owned by the Fund to manage the Funds price sensitivity, to reposition the Fund to a more favorable portion of the yield curve, or to purchase securities that the portfolio manager believes offer greater total return potential than existing holdings. Show less