There is no exact figure about how much money you can earn by buying a fund in a day, because different types of funds have different calculation methods and different risks. Generally speaking, the fund income is related to the net value of the fund on that day. You can refer to the following calculation methods:
The calculation formula of fund yield is: income/subscription amount × 100%. The calculation formula of fund income is: income = net value of the fund on that day × fund share ×( 1- redemption fee)-subscription amount+cash dividend.
Suppose that an investor buys a bond fund of 1 1,000 yuan, and the unit net value on the day of purchase is 1, then the fund shares bought are 1 1,000. If the unit net value of the fund rises to 1.000 1 after one working day, the expected return of investors in one day is1000 *1-1000 = 0.1yuan.