After the US stock market closed last night, the small-scale K-line clearly indicated a pullback, and with the weekly volume decreasing while moving upwards, today the Nasdaq opened more than 130 points higher, just 150 points away from the previous high. It's a bit puzzling; are people really so aggressive in trading US stocks? Just relying on news to surge like this, is there such confidence in breaking the previous high? If it were me, I would take profit on a high opening and not hold out for a new high.