After placing an order, the deposit will be automatically deducted from your settlement account, for example, 3000 yuan for a ton of soybeans. 1 lot = 10 ton, and the required deposit ratio is 10%. Then your normal purchase of primary soybeans should be 3000* 10=30000, while the margin trading only needs 30000* 10%=3000 yuan.

The margin level charged by the exchange for designing 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.