As far as the current situation is concerned, Shanghai Commodity Exchange is the largest, followed by Dalian Commodity Exchange and Zhengzhou Commodity Exchange. China's financial futures exchange has not been established for a long time. At present, there is only one Shanghai and Shenzhen 300 stock index futures, which is the smallest one. However, judging from the development history of world futures, the scale of future financial futures is bound to exceed that of commodity futures market.