Geopolitical Tensions Flare as Iran Closes Strait of Hormuz, Spiking Oil Prices

Wall Street indices saw modest declines on Monday, erasing a portion of last week's gains as geopolitical instability in the Middle East returned to the forefront. The Nasdaq fell 0.3% to 24,391.77, while the S&P 500 and Dow Jones Industrial Average dipped 0.1% and less than 0.1%, respectively. The downturn is driven by a sharp escalation in tensions between the U.S. and Iran. Reports indicate that Iran has closed the Strait of Hormuz and targeted tankers in the waterway, citing U.S. blockades of Iranian ports. This move comes as a ceasefire agreement between the two nations nears its expiration date this week. President Donald Trump characterized the actions as a 'total violation' of the ceasefire, threatening strikes on Iranian infrastructure if a deal is not reached. Meanwhile, the U.S. has seized an Iranian-flagged cargo ship in the Gulf of Oman. These developments pushed U.S. crude oil futures up nearly 7%, with prices briefly exceeding $90 per barrel. While energy stocks rebounded, airline stocks and gold equities faced pressure, with the NYSE Arca Gold Bugs Index dropping 1.4%. In the bond market, the benchmark 10-year Treasury yield rose 1.8 basis points to 4.264%. Analysts suggest that while investors are wary, the lack of a broader equity panic indicates a belief that a worst-case scenario may still be avoided.