1, futures play: when investors think that futures prices will rise, they can wait until futures prices rise before selling them to earn the difference; On the contrary, investors will short when they think the price will fall, and then buy when the stock price really falls;

2. Futures rules: Futures are two-way transactions, and investors can go long or short; Futures are leveraged transactions, and you can trade by paying a deposit; T+0 trading, buying and selling; The futures market is a negative sum market. Only when someone loses money can someone make money.