Monthly yield = (price at the end of the month-price at the beginning of the month)/price at the beginning of the month * 100%. For example, the price of a stock at the beginning of the month is 1 1 yuan, then the monthly return rate of this stock is: (1 1-6558.

Annualized rate of return = (year-end price-year-end price)/year-end price * 100%. Investors can also calculate the annualized rate of return according to the income, and the annualized rate of return = (income/principal)/(investment days /365 days) * 100%.