Under normal circumstances, the ups and downs correspond to the daily limit and cannot be bought; Limit can't be sold. The profit-making party will be closed by the exchange in the order of first reporting and first leveling, and the profit list will be randomly selected (generally not fully leveled, generally according to a certain proportion), which is a strong stop for customers. For customers who lose money, the exchange will give priority to the customers who hang orders first (that is, the customers who lose the most per hand), which is the trader's priority stop loss.

There will be ups and downs on the first day, and it will stop the next day, and the ups and downs will increase. If there are three consecutive daily limit, the exchange will forcibly lighten its position, and some varieties of exchanges will take other measures. For example, after PTA has three consecutive daily limit, the exchange prohibits trading for one day, and cotton is prohibited from selling after two daily limit.

Recently, the exchange has frequently issued trading policies related to continuous extreme market. We should pay close attention to the immediate changes in relevant policies and avoid chasing up and down in extreme markets to avoid unnecessary operational risks.