U.S. stock markets declined following a fresh round of military strikes by the United States on Iran, triggering concerns over rising oil prices and fears of escalating inflation. The movements in the markets also intensified pressure on bond yields, contributing to widespread selling across several sectors.

The S&P 500 closed down 54.67 points, or 0.7 percent, settling at 7,631.47. The Nasdaq Composite fell 271.12 points, a 1 percent decrease, to 26,099.77, while the Dow Jones Industrial Average dropped 419.02 points, or 0.8 percent, ending at 52,766.88.

Technology stocks were among the hardest hit, with shares of Microsoft declining 1.2 percent and Advanced Micro Devices (AMD) falling 2.4 percent. Market participants attributed part of the technology sector’s downturn to investor apprehensions about potential overinvestment in artificial intelligence projects amid broader economic uncertainties.

The military actions against Iran have contributed to a spike in oil prices, exacerbating inflation worries that had already been influencing financial markets. Rising energy costs typically add to production and transportation expenses, which can feed through to consumer prices. This dynamic has renewed concerns among investors about the Federal Reserve’s ability to manage inflation without prompting a sharper economic slowdown.

Bond markets responded with increased selling, reflecting anxiety over expected interest rate hikes and the prospect of prolonged inflationary pressures.

The latest U.S. strikes against Iran follow a series of tensions that have unsettled markets in recent months. While officials have defended the military actions as necessary measures to address security threats, the developments have amplified anxieties about potential regional conflict escalation and its global economic implications.

Investors now face the challenge of navigating heightened geopolitical risks alongside persistent inflationary trends, complicating the outlook for equities and fixed income instruments in the near term.