instruction: You are an expert quantitative crypto analyst. Your tasks:
  1) Analyze the context and decide an actionable stance for BTC-USD: BUY, SELL, or HOLD.
  2) Forecast the NEXT 10 daily CLOSING prices (USD).
  
  CONTEXT DATE: 2021-05-19
  
  ANALYSIS FRAMEWORK:
  • Technical Analysis: Use price trends, volatility, and momentum indicators
  • Macro Analysis: Consider gold/oil prices for broader market context
  • News Analysis: Integrate comprehensive daily news summaries for market catalysts
  
  OUTPUT FORMAT (JSON ONLY):
  Return a single JSON object with EXACTLY these keys:
  {"action":"BUY|SELL|HOLD","confidence":<int 1-99>,"stop_loss":<price 2dp>,"take_profit":<price 2dp>,"forecast_10d":[<10 prices 2dp>]}
  No extra text, no explanations, just the JSON.
input: Daily Context — 2021-05-19
  
  [Technical Price Analysis]
  - Current Price: $42,909.40
  - 60-Day Range: $42,909.40 → $63,503.46
  - 1D Return: -1.44%
  - 7D Return: -24.33%
  - 30D Return: -23.67%
  - Volatility (14d): 4.98%
  - Avg Daily Change (14d): 1897.80
  - Drawdown from Max: -32.43%
  
  [Price History (Last 60 Days USD)]
  [58313.64, 57523.42, 54529.14, 54738.95, 52774.27, 51704.16, 55137.31, 55973.51, 55950.75, 57750.20, 58917.69, 58918.83, 59095.81, 59384.31, 57603.89, 58758.55, 59057.88, 58192.36, 56048.94, 58323.95, 58245.00, 59793.23, 60204.96, 59893.45, 63503.46, 63109.70, 63314.01, 61572.79, 60683.82, 56216.18, 55724.27, 56473.03, 53906.09, 51762.27, 51093.65, 50050.87, 49004.25, 54021.75, 55033.12, 54824.70, 53555.11, 57750.18, 57828.05, 56631.08, 57200.29, 53333.54, 57424.01, 56396.52, 57356.40, 58803.78, 58232.32, 55859.80, 56704.57, 49150.54, 49716.19, 49880.54, 46760.19, 46456.06, 43537.51, 42909.40]
  
  [Macro & Commodities Context]
  - Gold Price: $1,881.30
  - Crude Oil Price: $63.36
  
  [Market Context]
  - Bitcoin dominates crypto market as leading digital asset
  - Price influenced by adoption, regulation, and macro factors
  
  [Comprehensive News Analysis]
  Summary: The crypto market experienced a severe downturn today, with Bitcoin plunging below $31,000 and triggering massive liquidations. This sell-off was heavily influenced by China's renewed crackdown on crypto services, banning financial institutions from offering related services and warning investors. Broader market sentiment also turned risk-off, impacting crypto alongside other high-flying assets. Elon Musk's continued influence, coupled with inflation concerns, added to the bearish pressure. Major crypto exchanges experienced outages due to high volume and network congestion.
  
  Sentiment: neutral
  Market Impact: unknown
  
  Key Events: No key events
  
  Price Drivers: No specific drivers
  
  Risk Factors: No major risks
  
  Opportunities: No specific opportunities
  
  Short-term News: [{'pick_idx': 1, 'id': 'n911522823eaa', 'title': 'Bitcoin Drops Below $31K Before Rebounding; $8B in Liquidations Triggered', 'url': 'https://www.coindesk.com/bitcoin-drop-below-40k-triggers-121931719...
  
  Long-term News: [{'pick_idx': 26, 'id': 'n8363d566c987', 'title': 'Bitcoin rally fueled by institutional investment, says Bitfinex CTO', 'url': 'https://www.coinrivet.com/bitcoin-rally-fueled-by-institutional-investm...
  
  Based on this comprehensive multi-dimensional analysis incorporating technical indicators, fundamentals, sentiment, and detailed news analysis, provide your trading decision and 10-day price forecast in the specified JSON format.