The full name of stock index futures (SPIF) is stock index futures, which can also be called stock index futures and futures index. It refers to the standardized futures contract with the stock price index as the subject matter. The two parties agree to buy and sell the underlying index according to the size of the stock price index determined in advance at a future date, and settle the difference in cash after the expiration. As a type of futures trading, stock index futures trading has basically the same characteristics and processes as ordinary commodity futures trading. Stock index futures are a kind of futures, which can be roughly divided into two categories, commodity futures and financial futures.

Futures contracts use the settlement price of the day as the basis for calculating the profit and loss of the day, and the profit and loss of the day are carried out at the settlement of the day.

Transfer, the profit is transferred to the investor's futures margin account, and the loss is deducted from his futures margin account. Profit and loss of the day

The specific calculation formula of is as follows:

Profit and loss of the day = ∑ [(selling price-settlement price of the day) × selling quantity× contract multiplier]+∑ [(settlement price of the day-buying price )× buying quantity× contract multiplier]+(settlement price of the previous trading day-settlement price of the day) × (selling position of the previous trading day-buying position of the previous trading day )× contract multiplier.

3,000 points, the first-hand stock index is worth 900,000. According to the deposit of 15%, 100W can buy 7 lots, and the money earned at 3500 =(3500-3000) * 300 * 7 =105000 yuan at 2500 compensation = (3500. The insurance company will inform you to increase the deposit. If you don't add it, the futures company will be flat, so there will be no extreme market, and your loss may be around 1 10,000.