MTRIX is a mutual fund offered by MFS Series Trust V that aims to provide investors with a total return on their investment. This fund is classified as Class I, indicating that it is designed for institutional investors and has a lower expense ratio. MTRIX invests in a diverse portfolio of stocks, bonds, and other securities to achieve its goal of long-term growth and income. With a focus on total return, this fund seeks to generate both capital appreciation and income for its investors.