The oscillation continues, and the range remains unchanged. Currently, the four-hour chart touches the midline with a small rebound of two consecutive bullish candles, indicating that there is still some momentum for a rebound. Moving forward, we can first watch for a rebound to the upper band at 89,500 resistance level. If it cannot break through the resistance or support at lower levels, liquidity will decrease, and the market will likely continue to oscillate accordingly. A significant breakout this week is unlikely.

For Bitcoin, consider short positions around 89,500-90,000, with a stop-loss above 90,500. Watch for strong support at 87,500, and if it breaks, look at 86,500.
For altcoins, consider short positions around 3,000-3,020, with a stop-loss above 2,070. Watch for around 2,900, and if it breaks, look at 2,850.
If the levels at 87,000 and 2,900 are difficult to break below, you can directly consider Doudan entry!