A mutual fund is an investment vehicle that pools money from multiple investors and invests it in various financial assets. One type of mutual fund is a stock fund, which primarily invests in stocks or shares of publicly traded companies. This type of fund offers investors the opportunity to diversify their portfolio and potentially earn higher returns through stock market investments. However, it also carries a higher level of risk compared to other types of mutual funds. In order to choose the right mutual fund, it's important to carefully consider your investment goals, risk tolerance, and the fund's performance and fees.