One: In stock index futures trading, there are four kinds of optional contracts for trading: the current month, the next month and the next two quarters. For example, it's March, so there are four contracts for the Shanghai and Shenzhen 300 index futures: IF 1003, IF 1004, IF 1006 and IF 1009.

Two: Futures can be roughly divided into two categories, commodity futures and financial futures. The main varieties of commodity futures can be divided into three categories: agricultural futures, metal futures (including base metals and precious metals futures) and energy futures; The main varieties of financial futures can be divided into foreign exchange futures, interest rate futures (including medium and long-term bond futures and short-term interest rate futures) and stock index futures.

2. After the closing of the stock index futures contract on the last trading day (the third Friday of the contract expiration month), the trading company shall pay the profit and loss of the positions of both parties based on the delivery settlement price and settle all the open contracts.

The settlement price of stock index futures delivery is the arithmetic average price of the last two hours of the underlying index on the previous trading day. Trading ownership adjusts the settlement price of stock index futures according to market conditions.

Three: Look at my information and give you the answer.