US Markets Drop as Futures Fall Over 580 Points Amid Iran Blockade

US stock futures declined sharply following President Trump's announcement to block maritime traffic through the Strait of Hormuz, with Dow futures (YM=F) falling about 1.2%, indicating a drop of over 580 points at market open. Contracts on the S&P 500 (ES=F) and Nasdaq 100 (NQ=F) decreased by 1.3% and 1.4%, respectively. The previous week had seen performance gains of over 3% for the Dow, 3.6% for the S&P 500, and nearly 4.7% for the Nasdaq. Crude oil prices surged, with West Texas Intermediate (CL=F) rising over 8% to above $104 per barrel, contributing to inflation concerns.