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.

For example, the margin level charged by the exchange that designs 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.

According to this ratio, if the settlement price of Shanghai and Shenzhen 300 index futures is 1400 points, then the contract deposits collected by the exchange the next day are 1400 points *300 yuan/point *12% = 50,400 yuan. The trading margin paid by investors to members will float upward on the basis of the provisions of the exchange.

To put it simply, you bought something with a total value of 100 yuan. As a result, as long as you pay a 30% deposit, as long as you have 30 yuan in your account, you can buy it first. However, after the loss, if your account limit can't reach the margin limit, you need to replenish it.