The market for Bitcoin suffered a heavy blow in the morning session, experiencing a big dump before temporarily finding support around 86900, and is currently in a wide range fluctuation state. On the daily chart, although bullish strength has increased, the upper pressure is significant, and the candlestick pattern has turned from bullish to bearish; on the 4-hour chart, bearish strength has intensified and has broken through key support levels. Future operations should follow the trend, and when the market rebounds, short positions should be established at high levels while strictly controlling risk.