Strategy. Under normal circumstances, the Fund invests at least 80% of the value of its net assets, plus any borrowings for investment purposes, in a diversified portfolio of debt securities of varying maturities, including bonds, notes and other similar fixed income instruments issued by governmental or private sector issuers. If the Fund changes this investment policy, it will notify shareholders in writing at least 60 days in advance of the change. The Fund may invest in debt securities that include, but are not limited to, obligations of the United States government or its agencies, instrumentalities or sponsored corporations; money market instruments; investment grade corporate debt securities; mortgage-backed securities guaranteed by, or secured by collateral that is guaranteed by, the United States … Show more… Under normal circumstances, the Fund invests at least 80% of the value of its net assets, plus any borrowings for investment purposes, in a diversified portfolio of debt securities of varying maturities, including bonds, notes and other similar fixed income instruments issued by governmental or private sector issuers. If the Fund changes this investment policy, it will notify shareholders in writing at least 60 days in advance of the change. The Fund may invest in debt securities that include, but are not limited to, obligations of the United States government or its agencies, instrumentalities or sponsored corporations; money market instruments; investment grade corporate debt securities; mortgage-backed securities guaranteed by, or secured by collateral that is guaranteed by, the United States government or its agencies, instrumentalities or sponsored corporations; foreign debt securities (corporate and government); and privately issued mortgage-backed securities and asset-backed securities, including commercial mortgage-backed securities. The Fund may invest up to 10% of its net assets in below investment grade bonds (commonly known as junk bonds), which are bonds rated below BBB by Fitch Ratings, Inc., below BBB by S&P Global Ratings and below Baa by Moodys Investors Service, Inc., or, if unrated, bonds deemed by the Funds investment advisor to be of comparable quality. The Fund may invest in derivative instruments such as options, futures and swap agreements for investment management or hedging purposes. The derivatives in which the Fund may invest include securities that are commonly referred to as mortgage derivatives, including inverse floaters, interest-only (IO) strips, principal-only (PO) strips, inverse IOs and tiered index bonds. The Fund may also purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. In managing the Funds investments, under normal market conditions, the portfolio managers seek to construct an investment portfolio with a dollar-weighted average duration of no more than two years. Portfolio securities and other instruments may be sold for a number of reasons, including when the portfolio managers believe that (i) another security or instrument may offer a better investment opportunity, (ii) there has been a deterioration in the credit fundamentals of an issuer, (iii) an individual security or instrument has reached its sell target, or (iv) the portfolio should be rebalanced for diversification or portfolio weighting purposes. Show less