The American Funds 2010 Target Date Retirement Fund - Class T (TDMMX) is a mutual fund that is designed to help investors reach their retirement goals by targeting a specific date in the future. This fund is managed by American Funds and is classified as Class T, which typically indicates a lower expense ratio and minimum investment compared to other classes. The fund's target date of 2010 suggests that it is geared towards investors who are planning to retire around that time. TDMMX offers a diversified portfolio of stocks and bonds, with the asset allocation becoming more conservative as the target date approaches. This fund is suitable for investors who are looking for a long-term investment option with a specific retirement goal in mind.