**BlackRock’s Bitcoin Dominance: Holding 3.44% of BTC Supply**
BlackRock’s **iShares Bitcoin Trust (IBIT)** now holds **3.44% of all Bitcoin**—worth **$72 billion**—making it the largest institutional holder of BTC globally . The ETF’s rapid accumulation (151% growth in 2025) reflects surging institutional demand, with IBIT controlling **54.7% of the U.S. spot Bitcoin ETF market** .
Key Insights:
1. **Supply Squeeze**: Combined with other ETFs, **6.12% of Bitcoin’s supply** is locked in regulated vehicles, exacerbating scarcity .
2. **Institutional Shift**: BlackRock’s long-term holdings signal Bitcoin’s maturation as a macro asset, with pension funds and corporations following suit .
3. **Market Impact**: High-volume days (e.g., **$4.2B traded**) show ETFs now drive BTC price action alongside corporate buyers like MicroStrategy .
*For deeper analysis, explore BlackRock’s IBIT prospectus or CoinTelegraph’s coverage.*
