You can earn money from your investment in three ways:

1. Dividend Payments — A fund may earn income in the form of dividends and interest on the securities in its portfolio. The fund then pays its shareholders nearly all of the income (minus disclosed expenses) it has earned in the form of dividends.
    
2. Capital Gains Distributions — The price of the securities a fund owns may increase. When a fund sells a security that has increased in price, the fund has a capital gain. At the end of the year, most funds distribute these capital gains (minus any capital losses) to investors.
    
3. Increased NAV — If the market value of a fund's portfolio increases after deduction of expenses and liabilities, then the value (NAV) of the fund and its shares increases. The higher NAV reflects the higher value of your investment.

With respect to dividend payments and capital gains distributions, funds usually will give you a choice: the fund can send you a check or other form of payment, or you can have your dividends or distributions reinvested in the fund to buy more shares (often without paying an additional sales load).