This decision-making level should be considered comprehensively. After all, 7: 40 is a little early, and most people have just finished family activities such as eating after work. 9 o'clock is not too early or too late. The Japanese market opens at 9 o'clock in the morning and the night market at 9 o'clock in the evening.
Generally speaking, the inner disk is the shadow disk of the outer disk, and the domestic disk is more suitable for the Japanese disk, so there is no disk and no continuity. If the market fluctuates greatly, most retail investors will still suffer serious losses, which will affect their enthusiasm, the activity of the disk and the healthy development of the market.
This market is a game of cutting leeks. If you don't like leeks, you won't come to play. Without cutting leeks, this market would not exist.