On Monday afternoon, July 28, analysis and trading suggestions for Bitcoin and Ethereum: This morning, Bitcoin rebounded from a low of 118755, reaching a high of 119813. After launching from a low of 3815, Ethereum showed a steady staircase-like rise, climbing to a peak of 3939. Currently, the daily chart indicates a strong area of operation between the middle band and upper band of the Bollinger Bands. The middle band continues to extend upward; however, it is evident that the price encounters resistance when reaching the upper resistance level. Currently, the candlestick is oscillating repeatedly below this area, and the trading volume is showing a slight contraction, indicating that the market's willingness to chase the price is temporarily insufficient. The J value in the KDJ indicator has already entered the overbought area, and there is a technical pullback demand in the short term. We anticipate a wave of pullback to enter short positions from this afternoon to the evening.