U.S. stocks pulled back as Brent crude prices climbed above $100 a barrel following fresh tanker attacks in the Persian Gulf and escalating conflict in the region. Treasury yields touched a 24-year high, while traders weighed rising inflation risks and shifting interest-rate expectations from the Federal Reserve.
Tanker Attacks and Middle East Conflict Push Brent Crude Above $100
Global energy markets tightened sharply after reports of increased strikes on vessels transiting the crucial Strait of Hormuz. The UK Maritime Trade Operations recorded nine attacks in the waterway and the Persian Gulf during the month, reaching about half of September’s total count in a fraction of the time. Benchmark Brent crude prices rose roughly 3% to 5%, pushing past $100 a barrel for the first time in two months. West Texas Intermediate gained past $95 a barrel in some sessions before trading around earlier levels.
The jump in oil followed mounting military friction in the region. The U.S. military sank five Iranian crude oil tankers after what officials described as attempts to target U.S. Navy carriers. Those actions compounded supply concerns already fed by production cuts in the Gulf of Mexico driven by a hurricane. Top oil officials warned that global stockpiles were running low, leaving governments with limited capacity to absorb fresh supply shocks.
West Texas Intermediate crude was around $89.56 a barrel, while Brent crude stood at $101.49.
Wall Street Equities and Treasury Yields React to Inflation and Rate Pressures
The renewed energy spike rippled across financial markets, reversing some of the gains from a record-setting session earlier in the week. At 10:53 a.m. ET, the Dow Jones Industrial Average fell 565.20 points, or 1.10%, to 50,956.08. The S&P 500 dropped 53.28 points, or 0.68%, to 7,765.65, and the Nasdaq Composite slid 229.73 points, or 0.83%, to 27,370.15.
Bond markets faced severe pressure as the 10-year Treasury yield climbed above 5.36% before easing slightly to 5.306%, marking its highest level since April 2002. The 30-year yield reached 5.685%. Higher yields increased borrowing costs for mortgages and corporate loans while reducing the present value of future earnings for high-growth technology shares. Technology exchange-traded funds and semiconductor stocks gave back part of their previous gains, though Nvidia maintained a massive market valuation approaching $6 trillion despite a fractional dip to $237.91.

Cryptocurrency markets retreated alongside equities. Bitcoin dropped 3.07% to about $82,962 after trading near $85,700 overnight, while Ether fell 5.14% to $2,561.
Federal Reserve Policy Expectations and Treasury Secretary Bessent’s Growth Outlook
The surge in energy costs complicated the outlook for monetary policy. Investors awaited the Federal Reserve’s September meeting minutes for deeper insight into the policy debate among central bank officials.
Trade Retaliation and Corporate Earnings Shape Investor Sentiment
Corporate developments added individual movement to the trading day.