The appearance of Zhengzhou Grain and Oil Wholesale Market, the prototype of the first futures exchange in the late 1980s, was the beginning of the birth of China's futures market after the founding of the People's Republic of China.

As early as the early 1920s, Beijing Stock Exchange and Tianjin Stock Exchange were first born, and Shanghai Stock Exchange was the most prosperous.

The novel Midnight is a description of the complex at that time, and the hype is war bonds. At that time, the number of brokers reached more than 800.