The opening price, also known as the opening price, refers to the transaction price of the first transaction per share after the opening of the stock exchange every trading day. Most stock exchanges in the world adopt the principle of maximum turnover to determine the opening price. If a security has not been traded for a period of time (usually half an hour) after the opening of the market, the closing price of the previous day shall be taken as the opening price of the security on that day. If a security has not been traded for several days in a row, the on-site intermediary broker of the stock exchange will put forward a guiding price according to the price trend of the securities entrusted by customers, making it the opening price after the securities are traded. In the intangible trading market, if a security has not been traded for several days in a row, the closing price of the previous day is taken as its opening price. Closing price: The closing price of Shanghai Stock Exchange is the weighted average price of all transactions (including the last transaction) one minute before the last transaction of the securities on that day. If there is no transaction on that day, the previous closing price is the closing price of that day. The closing price of Shenzhen Stock Exchange was generated by call auction. If the closing price of call auction cannot be generated, the closing price is the weighted average price of all transactions (including the last transaction) one minute before the last transaction of the securities on that day. If there is no transaction on that day, the previous closing price is the closing price of that day.

The opening price refers to the transaction price generated by call auction within 5 minutes before the opening of a futures contract. If no transaction price is generated in call auction, the opening price is the first transaction price after call auction. Closing price refers to the final transaction price of futures contracts on the same day. The settlement price of the day refers to the weighted average price of the transaction price of a futures contract according to the volume. If there is no transaction price on that day, the settlement price of the previous trading day shall be the settlement price of that day. The settlement price is the basis for the profit and loss settlement of the open contract on that day and the establishment of the price limit board on the next trading day.