$BTC $91K SUPPORT BREAKS: Bitcoin plunged -4.5% to $89,100, officially breaking the key $91,000 support floor after the $195M ETF outflow. This technical breakdown confirms the downside move from the recent "compression" phase. Bulls must immediately reclaim $91,000 to prevent further selling pressure. Failure to do so risks a decisive fall toward the structural $84,000 support zone. Liquidity remains low, amplifying the risk. #BTC