1, the main force uses the commission form to wash dishes, that is, the main force finds that there are more retail investors in the plate. In order to wash the retail investors in the market and reduce the pressure on the stock to continue to rise in the later period, more orders will be hung on it, causing panic among market investors.
2. When there is significant bad news for individual stocks, investors in the market will hang out orders in call auction in order to sell them in a hurry.