How much a 200 stock fund can earn a day mainly depends on the rate of return. If the rate of return is positive, it means making money. If the yield is negative, it means a loss. So when buying a fund, everyone must choose a good fund.

Second, the specific analysis

For example, suppose an investor buys a stock fund with 200 yuan, and the increase of the fund is 3%, then the money he can earn in a day is 200*3%=6 yuan, which is not much.

Third, expand information.

Can 200 yuan's funds benefit 5 yuan in one day?

200 yuan's fund can earn 5 yuan one day. As long as the fund's rate of return is above 3%, it can earn 5 yuan or 5 yuan more, but if the rate of return is negative, it will lose money.

However, it should be noted that some types of funds are not risky and can't earn 5 yuan in one day, such as money funds or pure debt funds. The money fund is a fund that invests in the money market, with little risk, so the income is not high, while the pure debt fund does not invest in the stock market, but invests in bonds. This is also the case.