This question examines the definition of the opening price. In the analysis of futures prices, the main futures prices include: opening price, closing price, highest price, lowest price and settlement price. The opening price refers to the transaction price generated by call auction within 5 minutes before the opening of a futures contract. Closing price refers to the final transaction price of futures contracts on the same day. The highest price refers to the highest transaction price of a futures contract in a certain period of time. The lowest price refers to the lowest transaction price of futures contracts in a certain period of time. The settlement price of the day refers to the weighted average price of the transaction price of a futures contract according to the volume.