1, interest income. The fund will certainly keep a certain percentage of cash to prevent investors from redeeming the fund shares.

2. Dividend income. Except for bond funds or money market funds, all other investment funds will put their money into the stock market to buy stocks. According to the operating conditions, listed companies will pay dividends to shareholders regularly. Funds holding shares in listed companies, that is, their shareholders, can naturally get dividends.

3. Capital gains. Funds can invest in stocks according to the principle of "buy low and sell high", and get rid of their marketable assets (including securities such as stocks and bonds) at the most favorable time to earn profits, which is capital gains.

4. Capital appreciation, managing the operation of the company's operating fund. Due to the appreciation of the securities invested and the continuous investment income, the net asset value of the fund will continue to increase. After investors have invested in the fund for a period of time, the net asset value of the fund units they hold has increased to a certain extent relative to the net asset value at the time of investment, which is the capital appreciation of the fund.