Bitcoin's recent movements have maintained the previous rhythm, with Ethereum closely following. In the short term, the strategy remains focused on high-altitude trading.

From the 4-hour K-line chart, the moving averages have already turned downward, beginning to form a bearish alignment. The volume that previously surged has now been steadily shrinking and retreating. The Bollinger Bands' upper and lower bands are also opening downward. The clear signal of resistance at the top indicates that as long as there is a rebound, it is essentially an opportunity for a high-altitude position. The resistance level above is holding steady, but if it breaks below the support, the downside space may open up.

On the 1-hour chart, the short-term trend has already shifted into a oscillating downward rhythm. The minor rebounds are unable to break through the short-term moving averages, which is a typical sign of weak retracement signals. During the day, one can consider shorting near the short-term resistance levels, but be cautious not to be lured into chasing rebounds. If you already hold a short position, you can hold it with confidence. If not, wait patiently for the rebound to touch the resistance again for a precise entry opportunity.

Operationally, the main tone continues to favor high-altitude short positions. Specifically, Bitcoin can be shorted in the 87500-88000 range, with targets around 86000-86500. For Ethereum, consider shorting near 2930-2950, with an expected range of 2800-2850.