U.S. stocks fell on Thursday, with the Dow Jones Industrial Average slipping 0.5%, as escalating tensions between the United States and Iran drove oil prices to their highest level since last summer. The S&P 500 and Nasdaq Composite also dipped 0.3%, snapping a three-day winning streak for the major indexes.

What this really means is that geopolitical risks are once again weighing on the markets, as Reuters reports. The U.S. has been building up its military presence in the Middle East amid stalled negotiations with Iran over its nuclear program, raising fears of a potential conflict that could disrupt global energy supplies.

Oil Prices Spike to 6-Month High

West Texas Intermediate (WTI) crude futures, the U.S. oil benchmark, climbed about 2% to $66.55 per barrel, the highest level since August 2025. BBC News reports that the jump in oil prices reflects growing concerns about supply disruptions should tensions between the U.S. and Iran escalate further.

The bigger picture here is that elevated energy costs could weigh on the broader economy, potentially offsetting some of the recent gains in consumer spending and corporate profits. As NPR notes, higher gas and heating prices tend to squeeze household budgets and reduce discretionary spending.

Tech Stocks Mixed Amid AI Disruption Fears

In the tech sector, shares were mixed as investors grappled with the potential impact of artificial intelligence (AI) on various industries. The Wall Street Journal reports that Booking Holdings, the parent company of Priceline and Kayak, slid 6.1% due to concerns that AI-powered competitors could disrupt its business model.

The divergent performance among tech stocks underscores the uncertainty surrounding the pace and scale of AI adoption across the economy. While some companies may be able to leverage AI to boost productivity and efficiency, others could face significant disruption to their traditional business practices.