Opening a position means that investors buy or sell a certain number of stock index futures contracts. Investors can choose to close their positions in advance before the contract expires; If you hold the contract until the last trading day, you must settle the futures trading through cash delivery. Opening a position in futures trading is equivalent to buying in stock trading. Because futures trading has a two-way trading machine. ...

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In stock index futures trading, the positions held by investors after buying stock index futures contracts are called long positions, referred to as long positions; The position held after selling the stock index futures contract is called short position, referred to as short position. Investors holding long positions think that the price of stock index futures contracts will rise, so they choose to buy; On the contrary, investors holding short positions