Some leading exchanges actually have a system of locking margin before project parties issue coins. The purpose is to prevent the opening price of coins from falling too badly, so that project parties can continue to maintain prices. If they do not protect the market, the margin will be confiscated and used for repurchase.

But the situation this year is that because everyone's market value is very high + there are no new users to take over, project parties have found that the pressure of protecting the market is far greater than the size of the margin, so many of them lie flat after issuing coins. $BTC