It was made by the long and short sides five minutes before the opening, which has reflected some of the main intentions, especially in the case of sudden price changes in other related markets, the opening price can better reflect the attitude and determination of the warring parties.

(2) closing price

The closing price is a summary of the whole day's price trend, and it is also an evaluation of who wins and loses in the long and short contests that day. The closing price is also a bridge connecting the next trading day.

(3) Settlement price

Settlement price refers to the price of a certain variety calculated by using the weighted average price according to the price fluctuation after the close of the day. This price is mainly used in the market where there is no debt settlement on the day, and it is used to settle the profit and loss of the day's transaction according to the settlement price at the closing time.