From the four-hour chart, the market shows a strong upward trend, with prices running between the middle and upper bands of the Bollinger Bands, indicating significant bullish strength. If Bitcoin can stabilize in the range of 107,000 - 107,400, it is likely to challenge the resistance level of 109,000; Ethereum can be positioned for long trades around 2430, aiming for 2500, while setting 2400 as the stop-loss level. Attention should be paid to the upper band resistance to guard against a pullback that could form a short-term top. Additionally, the opening of the U.S. stock market and macro data will influence the trend, so it is advisable to take profits in batches.