Assuming that the futures contract is at 4 150 and the contract multiplier is 300 when the margin is not included, the corresponding nominal principal of the futures is 4 150 * 300 = 1.245 million yuan.
Including the margin, the margin ratio required by the exchange is 12%, so the amount of margin to be occupied at the beginning is 1245000 yuan * 12% = 149400 yuan. Considering the debt-free settlement system adopted in futures trading, the risk degree (margin occupation ratio) of futures account is usually controlled at 70%, so the funds to be prepared at the beginning of the whole futures account are 6,543,800+049,400 yuan/70% = 2,654,338+034,000 yuan. The following table lists the amount of funds that need to be occupied at the beginning of the 1 hand stock index futures contract under 70% risk.