The general use method of intertemporal arbitrage is to arbitrage between main contracts and non-main contracts, and generally choose varieties with large trading volume of main contracts and non-main contracts. Look at the historical data in the past, and judge whether to buy the main force and sell the non-main force or sell the main force to buy the non-main force contract in combination with the price difference between the two contracts and the market trend.

The main function of hedging is to avoid the violent fluctuation of spot price through the reverse operation of futures market, so as to realize the purpose of spot hedging.

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