Hello! Stock index futures is an index based on 300 stocks in Shanghai and Shenzhen, and the profit and loss are weighed on the basis of the rise and fall of this index. The code of the Shanghai and Shenzhen 300 Index is 399300. For example, the latest point is 3346, so let's say it's 300 yuan. Suppose you are bearish on the market outlook and think that it will fall in the future, then you sell the stock index futures contract at a price of 300X3346. When it really falls, for example, it falls by 3,000 points, and you buy it back with every 300 yuan, then your profit is 300x3346-300x3000; ; Suppose you are optimistic about the market outlook and think that it will rise in the future, then you buy the stock index futures contract now, wait until it really rises, and then sell it to close the position. Your profit is the price difference in the middle. In addition: the threshold of stock index futures, like margin financing and securities lending, is 500 thousand! Example 1: According to the simulated trading contract of Shanghai and Shenzhen 300 index futures, the multiplier of Shanghai and Shenzhen 300 index futures contract is tentatively set as 300 yuan/point. Yesterday, the Shanghai and Shenzhen 300 Index closed at 3,764 points, so the Shanghai and Shenzhen 300 Index futures at 3,764 points at this moment are its prices, and the value of a Shanghai and Shenzhen 300 Index futures contract is 3,764× 300 =1129,200 yuan. If the index rises by 10 point, the value of a futures contract will increase by 3000 yuan. The minimum change unit of Shanghai and Shenzhen 300 index futures is 0.2 points. Calculated by 300 yuan per point, the lowest price change is equivalent to the contract value change 60 yuan. Example 2: At present, the margin level charged by the simulated trading contract of Shanghai and Shenzhen 300 index futures is 10% of the contract value. For example, yesterday, the Shanghai and Shenzhen 300 Index closed at 3,764 points and bought the 1 stock index futures contract. The price is 3764 points, and the contract amount is 1 129200 yuan. The deposit to be paid at this time is 1 12920 yuan. Hehe, I hope you can understand. You can ask if you don't understand.