December 30th BTC short-term oscillation is slightly bearish, mainly focusing on rebound highs and high support lows; key boundaries: 88500 (break then turn bullish), 86500 (break then turn bearish).

1. Core Price Levels (12/30 13:50, current price ≈ 87200)

• Resistance: 87800 (4h EMA30), 88500 (upper boundary of range / 100EMA), 89500 (previous high), 90000 (integer threshold)

• Support: 87000 (lower boundary of range), 86500 (strong support), 85800 (100-week EMA), 84000 (previous platform)

2. Technical Indicators (4h+1h)

• 4h: Price below EMA30/100, RSI≈43 (weak), MACD below zero line with death cross, decreasing histogram (weakening bearish momentum)

• 1h: Candlestick rebound weak, MACD golden cross but insufficient volume, clear resistance above

• Conclusion: Short-term oscillation slightly bearish, weak rebound, need to break 88500 to turn bullish, break below 86500 to accelerate downward

3. Executable Strategies (Contracts/Short-term)

1. Rebound to short (main strategy)

• Entry: Gradually short at 87800-88500, initial position at 87800, add at 88500 (scale in positions)

• Stop Loss: 89200 (88500 + 700 points)

• Targets: 87000 (first), 86500 (second), 85800 (third, hold if broken)

2. Support low buy (auxiliary strategy)

• Entry: Stabilize long positions at 86500-86800 (wait for 1h bullish close / long lower shadow confirmation)

• Stop Loss: 86000 (86500 - 500 points)

• Targets: 87200 (first), 87800 (second, take profit at resistance)

3. Breakout chase orders (after confirmation)

• Long: Stand firm above 88500 (1h close), chase long, stop loss 88000, targets 89500-90000

• Short: Break below 86500 (1h close), chase short, stop loss 87000, targets 85800-85000

4. Risk Control and Execution Points

• Position size: single strategy ≤20%, total position ≤50%; enter in batches, avoid heavy bets on breakouts

• Take profit: reduce positions at targets, first target reduce by 50%, second by 30%, remaining based on break levels

• Trigger: After breaking key levels, wait for 1h close confirmation before acting to avoid false breakouts

5. TradingView Order Templates (copy and use)

• Short orders: Limit 87800 short, Limit 88500 short; Stop 89200 stop loss; TakeProfit 87000/86500/85800
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• Long orders: Limit 86650 long; Stop 86000 stop loss; TakeProfit 87200/87800

• Alerts: Trigger when price ≥88500 or ≤86500, indicating breakout/break level