The daily limit of the futures market is based on the settlement price of the previous trading day, and the daily limit of different varieties is different. For example, the daily limit of wheat, copper, aluminum and natural rubber is 3 points, that of cotton, soybean and corn is 4 points, and that of fuel oil is 5 points. The daily limit of commodity futures is generally 3%, 4% and 5%, the daily limit of stock index futures is 10%, and the daily limit of treasury bonds futures is 2%.