If: (stock price) index futures, literally translated into stock index futures, the subject matter is the Shanghai and Shenzhen 300 Index. The name comes from English. Ih: I stands for stock index futures, and H is the first letter of "Shanghai". The theme is SSE 50. Chinese and English mixed naming. IC: I stands for stock index futures, C stands for China initials, and the subject matter is CSI 500. Naming is neither fish nor fowl. The naming of the subject matter in the domestic futures market has always been dominated by English, and Chinese and English are mixed. The futures varieties named in Chinese are: soybean oil, eggs and cola. For traders, it's just a code name, just get used to it.