Generally speaking, futures trading is based on the settlement price of the previous day. If the price drops by 5%, it will reach the daily limit of futures trading.
Generally speaking, the price limit of each futures product is different. Futures also implement a price limit system. The price limit of commodity futures varies with varieties, generally 3%-6%, and the price limit of stock index futures is 10%. The futures daily limit ratio is generally 4%, and some are 6%. The daily limit is calculated by multiplying the settlement price of the previous trading day by 4%.