The cryptocurrency market experienced a pronounced waterfall decline on September 26, with BTC briefly falling below $10.9K, reflecting a >4% 24‑hour loss and contributing to a slide in total market cap to approximately $3.823 trillion (down >4.5% in 24 hours). Seven‑day metrics show downside momentum, with BTC off about 6.32%, ETH declining over 14%, and the TOTAL3 index (ex‑BTC/ETH) down roughly 9.30%. On the macro front, reports indicate the administration announced a package of tariffs — including measures on heavy‑duty trucks, furniture, cabinets and pharmaceutical imports — set to take effect October 1. Traders and risk managers should monitor liquidity and volatility as markets digest these developments and adjust positioning accordingly.