1. First of all, you have lost money. Generally speaking, if you lose money in making stocks, you still have to sell them. We call it cutting meat, which means "cutting meat". For example, 10 yuan bought stocks, but the stocks fell and 9.5 yuan sold them. This is called cutting meat. The lightening refers to the stock bought at a loss of 10 yuan, which has not been lightened before, but is sold in 4 yuan, which is called lightening. 2. shorting is not optimistic about the market outlook and selling stocks. If there are no stocks, you won't buy stocks because you are not optimistic about the market outlook; Do more is the opposite, optimistic about the market outlook, people with stocks are reluctant to sell, and people without stocks actively buy.