Based on the trend changes in the market, Bitcoin's overall movement rhythm has shifted from initial oscillation and recovery to a more weak sideways trend. After an early rebound to around 71,200, it faced obvious resistance, and subsequent multiple rebounds failed to stabilize above that area, instead gradually falling back. The highs in the market keep moving lower, and the structure begins to show signs of weakening. In the afternoon, the market experienced a rapid decline, touching around 70,600 at the lowest point. Although there was a rebound, the strength was clearly insufficient, and after returning to around 71,000, it again entered a sideways consolidation. Overall, the pattern shows a "powerless upward attack and smooth pullback." Currently, the market is operating in the middle of the range, but structurally, the bullish continuation has significantly weakened. Ethereum's trend is generally synchronized, rising above 2,200 in the morning before facing resistance and falling back. In the afternoon, it dipped near 2,180 for a brief support, then rebounded but again failed to stabilize above 2,200. It is now fluctuating above 2,190, with the overall rhythm leaning weakly in line with Bitcoin.

From the market structure perspective, Bitcoin on the 4-hour chart remains within a range, but the short-term cycle has gradually shown a weakening pattern with lower highs. Moving averages are beginning to turn, and repeated rebounds are limited around 71,500, indicating this level has formed a clear resistance zone and is a key boundary for the current shift between bulls and bears. Support below is around 70,600, which was the low point during the afternoon pullback and also the area where the short-term cycle repeatedly found a bottom, showing some support. However, with repeated testing, the support's effectiveness is diminishing, and a breakdown could further extend the decline, opening new space downward. Overall, until the market re-establishes above the resistance zone, it is more reasonable to treat the current movement as weak oscillation, continuing to focus on shorting rebounds. Ethereum's structure is similar, with resistance concentrated around 2,220, a level where multiple rebounds failed. Support is near 2,170, which is a key short-term support level. If broken, it could lead to further testing of lower ranges. In summary, whether Bitcoin or Ethereum, the current market structure is in a weak oscillation phase, with the bears showing more persistence. The trading strategy should prioritize following the downward trend and participating in short positions.