(1) Opening price: refers to the transaction price generated in call auction within 5 minutes before the opening of a futures contract. If there is no transaction price in call auction, the opening price is the first transaction price after call auction. Determine the first transaction price according to the relevant matching principles in the Trading Rules of Zhengzhou Commodity Exchange. At this point, the previous transaction price is the closing price of the previous trading day.
(2) The closing price refers to the final transaction price on the day of the futures contract.
(3) The highest price refers to the highest transaction price among the transaction prices of a futures contract within a certain period of time.
(4) The lowest price refers to the lowest transaction price among the transaction prices of a futures contract within a certain period of time.
(5) The latest price refers to the real-time transaction price of a futures contract on a certain trading day.
(6) Fluctuation refers to the difference between the latest price of a futures contract on a trading day and the settlement price of the previous trading day.
(7) The maximum purchase price refers to the immediate maximum price applied by the buyer on the day of the futures contract.
(8) The lowest selling price refers to the immediate lowest price that the seller applies for selling on the day of the futures contract.
(9) "Buying application" refers to the number of futures contracts with the highest buying price that have not been sold in the trading system of the exchange on that day.
(10) The declared selling quantity refers to the number of orders placed at the lowest selling price that have not been concluded in the trading system of the exchange on the day of the futures contract.
(11) The settlement price refers to the weighted average price of the transaction price on the day of the futures contract according to the volume. If there is no transaction on that day, the settlement price of the previous trading day is 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.
(12) Volume refers to the bilateral quantity of all contracts traded in a futures contract on the same day.
(13) Open position refers to the bilateral number of open positions held by futures traders.