The Semper MBS Total Return Fund - Institutional Class (SEMMX) is a mutual fund that primarily invests in mortgage-backed securities (MBS). These are securities that are backed by a pool of mortgages, providing investors with exposure to the real estate market. The fund aims to provide a total return, which includes both capital appreciation and income from the MBS investments. As an institutional class fund, it is designed for larger investors such as institutions and has a lower expense ratio compared to retail class funds.