Last Wednesday's market movement was quite cautious, with BTC oscillating within a narrow range of approximately 86,500 to 87,900, showing no signs of a breakout. ETH's performance was similar, moving between 2,892 and 2,975 with limited activity.

From the 4-hour K-line chart, both cryptocurrencies are still trapped in a downward channel, with resistance levels above remaining solid. No significant breakout signals have been observed at this point.

Key price levels to watch for Thursday's opening:

For BTC, there may be shorting opportunities around 87,900 to 88,500. If a pullback occurs, the support zones around 86,800 to 86,000 will be important.

For ETH, consider short positions near 2,970 to 3,000, with stop-loss targets looking at the 2,910 to 2,870 range.

Of course, market conditions can change rapidly. These are just technical reference ideas based on current data; trading decisions should be made according to your own risk tolerance.