US stocks retreat as oil prices surge on US-Iran tensions
Wall Street endured a broad retreat on October 23, 2026, as an acute surge in international crude oil prices rattled trading floors amid escalating military tensions between the United States and Iran, according to Yonhap News Agency. The Dow Jones Industrial Average suffered the steepest blow, plunging 652.82 points, or 1.23 percent, to close at 52,215.16. Losses extended across the broader market, with the S&P 500 losing 0.52 percent to 7,623.68 and the Nasdaq Composite slipping 0.21 percent to 25,955.34.
Crude Spikes on US-Iran Conflict Fears
The core catalyst for the equity retreat was a sharp appreciation in petroleum benchmarks. December delivery Brent crude climbed 3.1 percent to settle at $116.72 per barrel, reaching its highest level since April 29. West Texas Intermediate gained 3.8 percent to close at $103.27 per barrel. The upward pressure on oil followed reports that the United States and Israel were weighing renewed airstrikes against Iran, paired with warnings from Tehran regarding potential retaliation against regional economic and civilian infrastructure.
Selling Spreads to Defensive Sectors and Blue Chips
Selling pressure rapidly expanded beyond the technology sector into traditionally defensive categories. Consumer staples, utilities, and healthcare absorbed notable capital outflows. Industrial and financial heavyweights also slumped.
Heavy equipment manufacturer Caterpillar fell 2.4 percent, and investment bank Goldman Sachs dropped 1.8 percent. Credit card issuer American Express slid over 3 percent, compounding losses for the Dow after management announced plans to cut roughly 5 percent of its global workforce to prepare for operational shifts.
Semiconductors Stabilize as Yields Climb
While heavy industry and finance absorbed heavy selling, severe downward momentum in technology stocks moderated compared to the previous session. Semiconductor equities recovered marginal ground, with Micron Technology rising 2.5 percent and AMD gaining 1.7 percent.
This stabilization in tech valuations occurred alongside a rebound in sovereign debt yields. The benchmark 10-year US Treasury yield climbed back to approximately 4.99 percent following a sharp price surge in the prior session.
Gold Plunges Below Key Threshold
Precious metals experienced simultaneous downward corrections. Spot gold prices broke below the $4,000 per ounce threshold during intraday trading, touching a three-month low.
Market participants attributed the decline in the non-yielding asset to rising inflation expectations tied to high oil prices, which stoked speculation of further monetary tightening by the Federal Reserve. Forced liquidations from investors using borrowed funds to cover margin calls on equities further accelerated the metal's retreat.