For example, if there is a stock, you estimate that it will fall to 4 yuan per share tomorrow, so you plan to buy it in 4 yuan. After the market opens the next day, you will place an order in 4 yuan. But it opened at 4.20 yuan, and then it went all the way up and never looked back. Of course, you didn't. On the third day, you still expect 4 yuan to buy it, but it keeps going up. On the fourth day, it even rose above 5 yuan. At this time, you wish you had bought it on April 20th. But it's no longer possible. It's called stepping on the air.

In fact, real short selling refers to markets that can be short, such as foreign stock markets and futures foreign exchange markets. These markets can be long or short, and short means that the bulls keep pushing up prices until the bears can't stop and surrender.

There is no short-selling mechanism in China, so short-selling here generally means that bulls keep raising prices, so that you have no chance to buy back.