The minimum margin rate of Shanghai-Shenzhen 300 and Shanghai-Shenzhen 50 futures exchanges is 12%, and the minimum margin rate of CSI 500 is 14%. At the current price, the primary margin of Shanghai and Shenzhen 300 stock index futures is about180,000 yuan, Shanghai 50 is about 1 15000 yuan, and CSI 500 is about 65,400 yuan.

In the firm trading, the futures company will add a part to the minimum standard of the futures exchange, and the actual margin will be slightly higher than this amount.

What are the trading rules of stock index futures?

Trading time:

According to the provisions of the Shanghai and Shenzhen 300 stock index futures contracts, the trading time is "9: 25 am-165438+0: 30 pm, 13: 00-65438+ 05: 00 pm", and the last trading day is "9: 25 am-/kloc-0".

Zheng Dong, a senior consultant of futures, said that the futures market in the United States is trading for 24 hours, while in Taiwan Province, China, it is increased by 15 minutes in the morning and evening.

Price limit:

According to the provisions of the Shanghai and Shenzhen 300 stock index futures contracts, the maximum daily price fluctuation is limited to 7% of the settlement price of the previous trading day.

Margin:

In order to strengthen risk control, the revised business rules increase the minimum trading margin of stock index futures from 10% to 12%. At the same time, in order to ensure the pertinence of the margin adjustment level of the unilateral stock exchange, the restrictive provisions of the margin adjustment of the unilateral stock exchange were revised.

The revised draft stipulates that "if a futures contract has a unilateral market on a certain trading day, the exchange may raise the trading margin standard at the time of settlement on that day". The previous risk control measures stipulated: "If the cumulative increase or decrease in the same direction as that in Dt-1trading day is less than 16%, the trading margin standard of this contract will be charged at 12% when the Dt trading day is settled, and if it is higher than 12%, it will be charged according to the original standard". At the same time, the revised draft also deleted the provisions of "Dt+ 1 trading day unilateral market margin has not returned to the normal standard" and "the trading margin standard is charged according to the normal standard when liquidation is carried out on the day of compulsory lightening".

Insiders also said that 12% is not the final margin collection standard for investors. According to the experience of commodity futures market, futures companies will levy 2 to 5 percentage points on this basis. According to the Shanghai and Shenzhen 300 Index, buying and selling a single contract needs at least10.5 million -0.2 million.