Strategy. Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in bonds and other debt securities. At least 50% of the Funds net assets will be invested in securities like those included in the Bloomberg U.S. Aggregate Bond Index (the Index), which are investment grade and denominated in U.S. dollars. The Index includes securities issued by the U.S. government, corporate bonds, and mortgage- and asset-backed securities. The Fund may invest up to 20% of its net assets in debt instruments that, at the time of purchase, are rated below investment grade or are unrated but determined to be of comparable quality (commonly referred to as high-yield investments … Show more… Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in bonds and other debt securities. At least 50% of the Funds net assets will be invested in securities like those included in the Bloomberg U.S. Aggregate Bond Index (the Index), which are investment grade and denominated in U.S. dollars. The Index includes securities issued by the U.S. government, corporate bonds, and mortgage- and asset-backed securities. The Fund may invest up to 20% of its net assets in debt instruments that, at the time of purchase, are rated below investment grade or are unrated but determined to be of comparable quality (commonly referred to as high-yield investments or junk bonds). The Fund may invest up to 25% of its net assets in foreign investments, including emerging markets. The Fund may invest in derivatives, such as futures contracts (including interest rate futures) and swap contracts (including credit default swaps, credit default swap indexes, and interest rate swaps) for hedging and investment purposes. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. Such securities may include mortgage-backed securities acquired or sold in the to be announced (TBA) market and those in a dollar roll transaction. The Funds investments in mortgage-related securities include investments in stripped mortgage-backed securities such as interest-only (IO) and principal-only (PO) securities. The Fund may invest in privately placed and other securities or instruments that are purchased and sold pursuant to Rule 144A or other exemptions under the Securities Act of 1933, as amended, subject to certain regulatory restrictions. While the Fund may invest in securities of any maturity, under normal circumstances, the Funds dollar-weighted average maturity will be between three and ten years. The Funds investment strategy may involve the frequent trading of portfolio securities. Show less