1. Market Review

Bitcoin experienced a V-shaped reversal last night, dropping from 105292 to 104139 before rebounding to 105284, with strong support at 104000 - 105000; Ethereum is weakly fluctuating, hovering around the key support level of 2480.

2. Technical Analysis

- Bitcoin: The daily Bollinger midline and previous low at 104000 form a resonance support, while 105000 is a watershed for bulls and bears. A breakthrough at 106000 may signal a rise; the 5/10 day moving averages are in a bullish arrangement, but caution is needed as a loss of 104000 could trigger a pullback.

- Ethereum: The weekly 2480 is a key trend support; breaking this level may lead to a drop to 2430 - 2450. The daily Bollinger lower band is suppressing, and the RSI is oversold but has not yet bottomed.

3. Trading Suggestions

- Bitcoin: Enter a light long position at 105000 - 105200 (10%-15% of position), and move the stop-loss to cost after the rise; add to positions on a pullback at 104500 - 104800 (15%-20% of position), with a stop-loss below 104000, targeting 106000 and 106500 - 107000.

- Ethereum: Build positions in batches at 2480 - 2500 (initially 10% at 2480, add 10% at 2460 - 2470), with a stop-loss at 2450, targeting 2550 and 2580.