Hello, if you pay attention to the stock index, Shanghai Stock Exchange and Shenzhen Stock Exchange, and pay attention to the intraday long and short changes. It is suggested that short-term homeopathic operation is better, because the stock index fluctuates greatly. If the cycle is relatively long, it is suggested to be 15 minutes, 1 hour, daily line. If it is an intraday volatility, the suggestion is 1 min, which is ultra short-term. Welcome to join me in Q communication.