The Fidelity Freedom 2065 Fund Class K (FFSDX) is a mutual fund that aims to provide long-term growth and capital appreciation for investors who plan to retire in or around the year 2065. This fund is managed by Fidelity Investments and primarily invests in a mix of stocks and bonds, with a focus on growth-oriented investments. The Class K shares of this fund have a lower expense ratio compared to other share classes, making it a cost-effective option for investors. Overall, the Fidelity Freedom 2065 Fund Class K offers a diversified and actively managed portfolio for investors seeking to build their retirement savings over the next few decades.