The Fidelity Freedom 2020 Fund (FSNOX) is a mutual fund that aims to provide investors with a diversified portfolio of stocks and bonds that is tailored to their retirement goals. As a Class K fund, it is designed for institutional investors and has a lower expense ratio compared to other classes. This fund is ideal for those looking to retire in the year 2020, as it will gradually shift towards a more conservative investment approach as the target date approaches. FSNOX offers a convenient and hassle-free way for investors to plan for their retirement and achieve their financial goals.