The Great-West Lifetime 2020 Fund Institutional Class (MXAKX) is a mutual fund that is designed for institutional investors seeking a long-term investment option with a target date of 2020. This fund offers a diversified portfolio of investments that are managed by Great-West Financial, a leading investment management company. The Institutional Class designation indicates that this fund is only available to institutional investors, such as pension funds, endowments, and other large organizations. With a focus on the year 2020, this fund aims to provide a balanced and stable investment option for those looking to reach their financial goals in the near future.