Bitcoin experiences a W-shaped rebound during the day, with high-level consolidation. Support is at 85,000-87,000, resistance at 88,500-90,000, with a 70% probability of trading within this range.

Personal opinion:
Long: Hourly volume exceeds 5 billion, break above 88,500 with volume and no pullback within 10 minutes, target 89,500-90,000, stop loss below 88,000.
Short: Break below 86,600 and fail to recover within 15 minutes, volume supports further decline to 86,000-85,000, stop loss above 87,000.