The Great-West Lifetime 2050 Fund Investor Class (ticker: MXBOX) is a mutual fund that aims to provide long-term growth and capital appreciation for investors who are planning to retire in the year 2050. This fund invests in a diversified portfolio of stocks, bonds, and other securities, with a focus on companies and industries that are expected to perform well over the next few decades. As an investor class fund, it is designed for individual investors and has a lower minimum investment requirement compared to institutional class funds. With a ticker symbol of MXBOX, this mutual fund can be easily identified and tracked by investors in the financial markets.