News: The market sentiment for Bitcoin on January 21, 2021, is mixed but leaning bearish in the short term. While institutional adoption continues with BlackRock adding Bitcoin futures to its funds, a significant price pullback is underway, with Bitcoin dropping around 10% due to profit-taking and fears of tighter U.S. regulations under the new Biden administration. Guggenheim's CIO also suggested a potential short-term top. Options traders are increasing their downside hedges, reflecting a bearish short-term outlook. Janet Yellen's nuanced comments on crypto add to regulatory uncertainty.

Market Probabilities: 
Bull 35% | Base 40% | Bear 25%

Recommendations: 
Short-term: HOLD
Long-term: BUY
{"sentiment": "neutral", "price_direction": "up", "impact_strength": "high", "timeframe": "medium_term", "confidence": 0.5, "key_reason": "BlackRock's decision to include Bitcoin futures in its funds is a major institutional endorsement. T"}