A mutual fund pools money from investors and invests it in stocks, bonds, and other securities. Investors share the earnings and capital gains or losses proportionate to their investment. Mutual funds offer diversification, professional management, low costs, and liquidity. There are various types of mutual funds categorized by structure, investment objectives, and other factors to meet different investor needs and risk tolerances. Mutual funds provide common people an opportunity to invest in a diversified basket of securities managed by professionals.