The Fidelity Advisor Total Bond Fund (FEPIX) is a mutual fund that focuses on investing in a diverse portfolio of fixed-income securities, such as government and corporate bonds. As a Class I fund, it is designed for institutional investors and has a lower expense ratio compared to other classes of the same fund. This fund aims to provide investors with a steady stream of income and potential capital appreciation through a mix of high-quality bonds. It is managed by Fidelity Investments, a reputable financial services company known for its expertise in managing mutual funds.