Bitcoin is currently hovering near the lower Bollinger Band, which from a technical perspective is an overbought area. After the Bollinger Band contracts and opens upward, there's a high probability for an upward movement, which creates rebound demand.

From an indicator perspective, although DIF is still below DEA and MACD is negative, the key is to watch for divergence signals at the bottom. If the price continues to probe lower but the green histogram shortens or even stops making new lows, it indicates that bearish momentum is exhausting and bullish power is accumulating in the background—this is a bullish signal.

Specific trading strategy: For Bitcoin, consider entering around the 91000-90300 zone on pullbacks, with key resistance to watch at 92000-93500. Once it breaks through, continue looking higher. For Ethereum, use similar logic—enter near 3135-3090 on pullbacks, targeting the 3200-3300 zone, and continue chasing on breakout.