The market price is around 28900 and the market price is around 1940. If there are many short positions, just buy them and stop the loss by just a few points. The market price is 28500 and the market price is 1900. But you probably didn’t dare to take it at that time. For example, if you want to buy 28900, just buy a 0.4 Bizhong you want to buy. Let’s do the math here. It is best for the copycat to have no more than 10% of the total position after buying it. Choose good ones with expectations and good rebounds. Generally, there is a second test after a big drop. That is, after falling to a support and rebounding, it will test that position for the second time, and the reason for buying in batches is to win. If it is strong, it will not go back to test and directly pull the market. When the time comes, you will still want to chase higher. For example, vgx is thinking about the conclusion of the acquisition at night. It has a short-term positive expectation. You will not be able to wait for the second visit. Of course, if there is bad news again at night, it will come back.