The short position in the morning has already yielded several times the profit. Hold it until the evening. The specific timing is based on the opening theory. It surged at 9:45 in the morning, so pay attention to the surge at 7:45, as there may be a pullback. Generally, close the position around 9:45. Of course, if there is a pullback at 7:45 in the evening and it hasn't broken through the previous high, it may continue to pull back until around 10:45, and depending on the situation, it might resume the surge until tomorrow morning. In short, judge based on the amplitude; for Bitcoin, it still needs to rise a few points. $BTC