During the trading hours, all futures investors in China concentrate on trading futures contracts in the futures market, and the trading is very active. In addition, investors are advised to generally choose the main contracts of various varieties to participate in the transaction (that is, the contracts with the largest turnover and positions). There are people buying and selling transactions almost all the time, and the trading rules are based on the principles of price priority, time priority and quantity priority. For example, the latest price of corn futures is 2300 yuan per ton. Explain that someone is willing to buy at this price at present, and you can entrust the transaction. If we entrust 23 10 yuan to sell it, it will definitely not be sold. Only a few people meet the requirements, you will clinch a deal, that is, some people sell, some people buy, and clinch a deal according to the principle of price first, time first and quantity first.