Strategy. Under normal circumstances, the Fund intends to invest more than 50% of its net assets in residential and commercial mortgage-backed securities and U.S. Treasury obligations rated at the time of investment Aa3 or higher by Moodys Investors Service, Inc. ( Moodys ) or AA- or higher by S&P Global Ratings ( S&P ) or the equivalent by any other nationally recognized statistical rating organization or unrated securities that are determined by DoubleLine Capital LP (the Adviser or DoubleLine Capital ) to be of comparable quality. These investments may include mortgage-backed securities of any maturity or type, including those guaranteed by, or secured by collateral that is guaranteed by, the United States Government, its agencies, instrumentalities or sponsored corporations, and privately … Show more… Under normal circumstances, the Fund intends to invest more than 50% of its net assets in residential and commercial mortgage-backed securities and U.S. Treasury obligations rated at the time of investment Aa3 or higher by Moodys Investors Service, Inc. ( Moodys ) or AA- or higher by S&P Global Ratings ( S&P ) or the equivalent by any other nationally recognized statistical rating organization or unrated securities that are determined by DoubleLine Capital LP (the Adviser or DoubleLine Capital ) to be of comparable quality. These investments may include mortgage-backed securities of any maturity or type, including those guaranteed by, or secured by collateral that is guaranteed by, the United States Government, its agencies, instrumentalities or sponsored corporations, and privately issued mortgage-backed securities. These investments also include, among others, government mortgage pass-through securities, collateralized mortgage obligations, multiclass pass-through securities, private mortgage pass-through securities, stripped mortgage securities (interest-only and principal-only securities) and inverse floaters. The Funds investments in derivatives and other synthetic instruments that provide exposures comparable, in the judgment of the Adviser, to any of the foregoing instruments described in this paragraph will be counted toward satisfaction of the Funds 50% policy (using, where determined appropriate in the Advisers discretion, an instruments notional amount). Since the Funds inception, the Fund has historically invested substantially all of its assets in mortgage-backed securities; short term investments, such as notes issued by U.S. Government agencies and shares of money market funds; and other asset-backed obligations, collateralized loan obligations, obligations of the U.S. Government and its agencies, instrumentalities and sponsored corporations, and futures contracts. The Fund may invest in other instruments as part of its principal investment strategies, but it has not historically done so to a significant extent and there can be no assurance it will do so in the future. In managing the Funds portfolio, the portfolio managers typically use a controlled risk approach. The techniques of this approach attempt to control the principal risk components of the fixed income markets and may include, among other factors, consideration of the Advisers view of the following: the potential relative performance of various market sectors, security selection available within a given sector, the risk/reward equation for different asset classes, liquidity conditions in various market sectors, the shape of the yield curve and projections for changes in the yield curve, potential fluctuations in the overall level of interest rates, and current fiscal policy. Under normal circumstances, the Fund intends to invest at least 80% of its net assets (plus the amount of borrowings for investment purposes) in bonds. Bonds include bonds, debt securities, and other fixed income instruments issued by governmental or private-sector entities. The Fund may invest in bonds of any credit quality, including those that are at the time of investment unrated or rated BB+ or lower by S&P or Ba1 or lower by Moodys or the equivalent by any other nationally recognized statistical rating organization. Bonds and fixed income instruments rated below investment grade, or such instruments that are unrated and determined by the Adviser to be of comparable quality, are high yield, high risk bonds, commonly known as junk bonds. Such junk bonds also may be considered to possess some speculative characteristics. The Fund may invest up to 33 1/3% of its net assets in junk bonds, bank loans and assignments rated below investment grade or unrated but determined by the Adviser to be of comparable quality, and credit default swaps of companies in the high yield universe. The Adviser does not consider the term junk bonds to include any mortgage-backed securities or any other asset-backed securities, regardless of their credit rating or credit quality, and accordingly may invest without limit in such investments. The Fund may invest a portion of its assets in inverse floater securities and interest-only and principal-only securities. The Adviser monitors the duration of the Funds portfolio securities to seek to assess and, in its discretion, adjust the Funds exposure to interest rate risk. The Adviser may seek to manage the dollar-weighted average effective duration of the Funds portfolio through the use of derivative instruments and other investments (including, among others, inverse floaters, futures contracts, U.S. Treasury swaps, interest rate swaps, total return swaps and options, including options on swap agreements). The Fund incurs costs in implementing duration management strategies, and there can be no assurance that the Fund will engage in duration management strategies or that any duration management strategy employed by the Fund will be successful. In managing the Funds investments, under normal market conditions, the portfolio managers intend to seek to construct an investment portfolio with a dollar-weighted average effective duration of no less than one year and no more than eight years. Duration is a measure of the expected life of a fixed income instrument that is used to determine the sensitivity of a securitys price to changes in interest rates. Effective duration is a measure of the Funds portfolio duration adjusted for the anticipated effect of interest rate changes on bond and mortgage prepayment rates as determined by the Adviser. The effective duration of the Funds investment portfolio may vary materially from its target range, from time to time, and there is no assurance that the effective duration of the Funds investment portfolio will always be within its target range. The Fund may enter into derivatives transactions and other instruments of any kind for hedging purposes or otherwise to gain, or reduce, long or short exposure to one or more asset classes or issuers. The Fund may use derivatives transactions with the purpose or effect of creating investment leverage. For example, the Fund may use futures contracts and options on futures contracts, in order to gain efficient long or short investment exposures as an alternative to cash investments or to hedge against portfolio exposures; interest rate swaps, to gain indirect long or short exposures to interest rates, issuers, or currencies, or to hedge against portfolio exposures; and total return swaps and credit derivatives (such as credit default swaps), put and call options, and exchange-traded and structured notes, to take indirect long or short positions on indexes, securities, currencies, or other indicators of value, or to hedge against portfolio exposures. The Fund may also engage in short sales or take short positions, either to adjust its duration or for other investment purposes. Portfolio securities may be sold at any time. By way of example, sales may occur when the Funds portfolio managers determine to take advantage of what the portfolio managers consider to be a better investment opportunity, when the portfolio managers believe the portfolio securities no longer represent relatively attractive investment opportunities, when the portfolio managers perceive deterioration in the credit fundamentals of the issuer, or when the portfolio managers believe it would be appropriate to do so in order to readjust the duration of the Funds investment portfolio. Show less