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What are the main functions of futures?
1. For example, if you are a steel enterprise, you need 1T rebar in September, but you don't need it now. For example, the rebar futures price in September is 1000, and you buy 1 rebar in September, and the spot price in September is1. Although the futures price of steel fell, the spot price also fell, and enterprises bought raw materials at the required price.

2. Price discovery means that although time comes, futures prices and spot prices will get closer and closer, and futures prices are formed by transactions, the market is spontaneous, and prices will naturally come out.

3. Calculate arbitrage according to the arbitrage ratio. The domestic market is still forgotten, and hedging is difficult to achieve. Many enterprises can't stand the temptation of price difference and give up their original plans to participate in speculation.