The MSIF Multi-Asset Real Return Portfolio - A (MRJAX) is a mutual fund that aims to provide investors with a diversified portfolio of assets that can generate real returns over time. This fund invests in a variety of asset classes, including stocks, bonds, and real estate, to help mitigate risk and potentially increase returns. The "A" in the ticker symbol indicates that this fund is the "A" share class, which typically has a lower expense ratio and requires a minimum investment amount. Overall, the MRJAX mutual fund offers investors a well-rounded investment option for long-term growth and inflation protection.