Because the embodiment of these economic functions is not as intuitive as that of banks or securities markets, the economic functions of futures markets are easily misunderstood and questioned. A futures expert once said that even in the United States, where the futures market has a history of more than 100 years, once the spot market price fluctuates greatly, many people will go straight to the futures market to find the reason. So in the United States in the 1980s, there was a big discussion about whether futures and options have economic value. At the request of the U.S. Congress, the relevant regulators organized various market players, experts and regulators to discuss, study and analyze for three years, and finally formed the Research Report on the Economic Impact of Futures Option Trading. The report believes that the US futures and options market provides hedging tools for market participants who need to manage risks. It has the functions of price discovery, pricing benchmark and hedging, and plays an important role in improving the liquidity and stability of the spot market and the real economy.