Investors buy funds mainly through the net growth of funds and dividend income;

Due to the appreciation of stocks or bonds invested by open-end funds or the acquisition of dividends, bonuses, interest, etc. , the net value of fund units has increased;

After the net value of fund shares rises, the difference in net value obtained by investors when selling fund shares is investment gross profit;

Deducting the subscription and redemption expenses when buying funds from gross profit is the real investment income.