Recently, the cryptocurrency market has shown a fluctuating trend, with investors remaining cautious. Bitcoin is currently fluctuating within the range of 106000-107600, with support around 106071, while resistance is faced between 107575 and 110000. The shrinking trading volume indicates a decline in market participation.

Regarding Ethereum, the support level at $3880 is still valid, but the upward momentum has significantly weakened. $3927 constitutes short-term resistance, while $4000 is a stronger resistance level. It is worth noting that long positions have accumulated in the $3900-$4000 range, increasing the risk of market fluctuation.

For trading strategies, Bitcoin can consider shorting lightly in the range of 107300-107500, or going long lightly in the range of 106200-106500. If it breaks through this range, it can be traded in the direction of the breakout. Ethereum can use 3880 dollars as a key point; if it stabilizes, it can go long to 3920-3950 dollars, and if it breaks below 3850 dollars, it can short to 3800-3780 dollars.

Overall, the current market lacks a clear direction, and investors need to remain cautious, closely monitoring market trends and the performance of important support and resistance levels. In a highly uncertain market environment, it is crucial to manage positions and risks appropriately.