SPDR Portfolio Mortgage Backed Bond (NYSE:SPMB) focuses on providing investors with exposure to the mortgage-backed securities (MBS) market. Specifically, it targets the investment-grade segment of the U.S. mortgage market by tracking the performance of the Bloomberg U.S. MBS Index. The main objectives are to offer high-quality income and diversification opportunities within the fixed-income universe. SPMB seeks to achieve these goals through a carefully selected portfolio of mortgage-backed securities, managed by experienced professionals. By doing so, it aims to deliver consistent returns for its investors while managing the risks associated with mortgage and rate fluctuations. Projects and strategies within SPMB involve meticulous analysis and selection of MBS that meet its stringent criteria, focusing on securities backed by mortgages with relatively stable and predictable cash flows.