Institutional holders now dominate Bitcoin liquidity, controlling over 257,000 BTC, surpassing exchange reserves. Notably, ETFs such as BlackRock's IBIT hold 131,000 BTC, introducing settlement delays that stabilize short-term price movements around key support and resistance levels. This shift impacts derivatives markets, with arbitrage strategies affecting futures open interest and basis spreads. Despite reduced volatility, risks such as forced selling and ETF redemptions remain.