$BTC SOL The four-hour K-line shows a pattern of 'weak recovery oscillation after a surge and drop': After surging to 146.870, it fell back and rebounded after finding support at 123.050. The current price of 135.960 is stabilizing at the Bollinger middle band, with short-term support looking at the Bollinger middle band, strong support at 129.257, and resistance initially looking at the Bollinger upper band with strong resistance at the previous high of 146.870; the rhythm leans towards a weak rebound in the range, suitable for short-term operations relying on low buying at the middle band and high selling at the upper band, with attention needed on whether the volume can follow up to break the current balance. $SOL