Mutual funds are pooled investment vehicles actively managed either by professional fund managers or passively tracked by an index or industry. The funds are generally well diversified to offset potential losses. They offer an attractive way for savings to be managed in a passive manner without paying high fees or requiring constant attention from individual investors. Mutual funds present an option for investors who lack the time or knowledge to make traditional and complex investment decisions. By putting your money in a mutual fund, you permit the portfolio manager to make those essential decisions for you.