FX.co ★ US Stocks Close Mixed Amid US-Iran Tensions

US stock indexes ended mixed on Wednesday as rising oil prices darkened the macroeconomic outlook, even as chipmakers staged a rebound. The S&P 500 slipped 0.3%, the Dow Jones Industrial Average dropped 577 points, while the Nasdaq 100 added 0.3%.

Treasury yields climbed after President Trump declared that the ceasefire with Iran was “over” following renewed strikes, stoking worries about energy-driven inflation. Those concerns were reinforced by minutes from the Federal Reserve’s June meeting, which showed some policymakers still see a potential need for additional rate hikes if inflation remains persistently high.

Credit-sensitive sectors came under pressure, with JPMorgan falling 2.5% and Visa down 1.3%. Most major AI-related cloud and hyperscale names also retreated on concerns about heavy capital spending on data center infrastructure: Alphabet lost 1.4%, Amazon declined 1%, and Microsoft fell 1.4%.

Semiconductor stocks, however, supported the Nasdaq. Broadcom rose 4.8% after it expanded a supply agreement with Apple—whose shares gained 0.9%—for US-made components. Nvidia advanced 3.6% on reports that Chinese companies plan to step up purchases of its H200 chips.