Bitcoin overall shows a volatile downward trend, starting a correction from the high point around 80,820 early this morning. During the oscillation, it gradually broke below short-term support, with the lowest dip reaching the 78,960 area. Ethereum's movement is highly correlated with Bitcoin, starting its downward trend from the high of 3,120 and dropping to the low of 3,050, showing a consistent weak follow-through, highlighting the market's linkage.

On the daily chart, signs of loosening in the upward channel appear. After experiencing high-level oscillation and diminishing bullish momentum, the market has successfully shifted to a sideways downward movement. Bearish momentum continues to release, causing the moving average system to turn downward, with the MACD indicator showing a bearish divergence and a death cross. The red bars turn green and continue to expand, indicating a clear trend reversal to a bearish dominance, with this downward trend having strong continuity and structural destructiveness. The four-hour chart continues to show a weak decline, with prices consistently pressured below the channel's lower boundary, reflecting a one-sided weak downward technical feature, further solidifying the daily trend's bearish foundation. Currently, the market rhythm indicates that bearish strength is still increasing. Short-term rebounds are not trend reversals but typical trap-and-sell actions, mainly aimed at accumulating energy for further declines. Today's early operations focus on rebounding to lay out short positions, paying close attention to the effectiveness of resistance in the 79,800-80,200 range, with key supports at 78,500 and 77,800.

Specific trading suggestions: Watch the resistance at 80,500-81,200 and 81,800-82,500. If these resistances hold, consider trying high short positions, aiming for a downward space of 500-6,000 points.