In the futures market, traders can pay a small amount of money according to a certain proportion of the price of futures contracts as financial guarantee for the performance of futures contracts and participate in the trading of futures contracts. This kind of money is the futures margin. The exchange calculates that the margin level charged by the Shanghai and Shenzhen 300 index futures is 65438+ 0.2% of the contract face value. The ownership of the transaction shall be adjusted according to the market risk.