[9.28 Morning Ether Trend Analysis]

From the 15-minute level, the current key resistance level to watch is near the recent rebound high of 4031, which constitutes an important resistance area for a short-term bullish breakout; the initial support can be referenced at the line of 3979, serving as a recent pullback low with certain technical support strength. Currently, the price is hovering around 4003, overall running below 4010, indicating that both bulls and bears are in a state of tense competition. If the market effectively breaks below 3979.59 USD, it may further open up downward space to test deeper support.

In terms of operation, it is recommended to place short orders around 4000, targeting the 3900 area, with risk control set above 4050.