The Fund is an actively-managed fund of funds and seeks to achieve its investment objective by investing primarily in other investment companies, including other actively managed exchange-traded funds (ETFs) and index-based ETFs (collectively, Underlying Investments), that provide exposure to a broad range of fixed income asset classes. The Underlying Investments may invest in investment-grade U.S. corporate bonds, U.S. Treasury securities, floating rate debt securities, treasury inflation-protected bonds (TIPS), foreign corporate debt securities (including those of emerging markets), high yield (junk) bonds, mortgage-backed and asset-backed securities, and preferred stocks. The Fund may also invest in cash, cash equivalents, or money market funds.