Man Cang-All the money used for stock trading was bought into stocks. Or the money used to speculate in futures, all bought futures contracts. Man Cang's surgery is more risky.

Clearance-sell all stocks.

Empty-when the share price of a stock rises all the way, it is judged that the share price will fall back in the afternoon, so you throw it out and you want to buy back the thrown stock at a low price. Who knows that the stock price has not fallen, but has been rising. In this way, this "high throw and low catch" foot is "empty". 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. 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.