The Fidelity Advisor Government Income Fund: Class Z (FIKPX) is a mutual fund that primarily invests in government-issued securities, such as Treasury bonds and notes. This fund aims to provide investors with a stable and consistent income stream while also preserving capital. With a focus on government-backed investments, this fund may offer lower risk compared to other types of mutual funds. The Class Z shares of this fund are typically available to institutional investors and may have lower fees and expenses compared to other share classes.