People who invest in the stock market have traditionally traded stocks up and down at high frequency to make money, but then the stock market fluctuates wildly and gambling is prevalent. In order to ease the sharp fluctuations, people of insight put forward value investment, which can get very considerable investment returns without high-frequency trading and long-term investment. Among them, there are stock splits (send to increase shares), distribution of dividends, repurchase of shares and distribution of derivatives. and other methods. Share splitting (sending and converting shares) is simply the addition, subtraction, multiplication and division of shares without any actual return. For dividend distribution, ex-rights and ex-dividends are the market price of the stock minus the divide