Ether's rebound after Monday's opening exceeded expectations somewhat, with trading hours peaking above the 4200 level before fluctuating back. Currently, a continuous downward trend is observed on the four-hour chart, and in the evening, attention will be on the support strength near 4100. If this level breaks successfully, then Monday's rebound will basically come to an end. There is temporarily not much higher trade volumes during the day, and in the evening, we will continue to watch for a wave of four-hour pullbacks.