$BTC Today, the overall trend remains volatile, with a clear signal of a shift towards strength in the market structure: the oscillating highs continue to rise, and the buying momentum is gradually strengthening; the key resistance level of 636 in the morning has been successfully broken through, with the intraday high reaching around 638, and the short-term buying momentum continues to be released.

From the 4-hour Bollinger Bands, the upper and middle bands are still generally downward, but the lower band has turned upward, and the lower channel is gradually rising, clearly indicating that the downward momentum is exhausted and the downside space is basically closed off, with no risk of a sharp decline in the short term. Currently, it is stably operating above the middle Bollinger Band, which has shifted from previous resistance to short-term strong support, and the buying side holds the short-term initiative.

The subsequent short-term strategy is to follow the buying trend, with the upward target first looking at the key resistance level of 645; if volume increases and it stabilizes above 645, the rebound space will be further opened.