$BTC 1. Short Selling

2. Take Profit Target: 85886.0 (Bollinger Band Lower Bound) / 85000.0

3. Stop Loss Target: 90200.0

4. Structural Failure Point: 90025.8 (Bollinger Band Middle Bound)

Core Basis: The current price (86390.2) is clearly operating below the Bollinger Band Middle Bound (90025.8), within a bearish dominant range. MACD shows a clear death cross (DIF: -1780.9 < DEA: -1734.5), and both lines are below the zero axis, with the histogram being negative (-46.5), confirming bearish momentum. The KDJ's J value (3.4) has entered deep oversold territory, combined with the price position, indicating that the downward momentum has not yet fully released. A key bearish signal is the trading volume (42,443.8) significantly below the 5-day and 10-day average volumes, showing a serious divergence between volume and price, indicating a lack of buying support during the decline. Although OBV is positive, its impact weight is relatively low under the aforementioned core bearish structure. Overall judgment indicates a clear bearish trend in the technical analysis.