It is clearer than most investors, and the daily questions are divided into forward and reverse. For example, if the stock price opens sharply lower by more than 5% this year, you can buy a certain amount. Once the stock price rises on the day, even if you make one or two points, you can sell all the amount you bought on the day, so as to achieve a certain profit for the trading within a day. This is the problem of going forward. The reverse problem is to sell a certain amount when the stock price opens higher. The day's stock price fell back and then picked it back.
The same amount. Generally speaking, you don't need to eat a big fat man in one bite to do the questions in the day, but you need to be able to lock in a stable income that day.