New York, 13 March 2026 – U.S. stocks ended sharply lower as escalating conflict involving Iran pushed crude oil prices toward US$100 per barrel, triggering a broad sell-off across global equity markets.
The major U.S. indices all posted significant losses as investors reacted to geopolitical tensions and the risk of a prolonged disruption to global energy supplies.
- Dow Jones Industrial Average fell about 739 points (1.6%)
- S&P 500 declined roughly 1.5%
- Nasdaq Composite dropped around 1.8%
The sell-off was triggered by reports that Iranian forces had attacked oil tankers, which sent crude prices surging and heightened fears of supply disruptions through the Strait of Hormuz, a critical global oil shipping route.
Oil Prices Near US$100 Fuel Inflation Fears
Energy markets were at the center of the market reaction. Brent crude briefly climbed above US$100 per barrel, its highest level in years, as investors worried that the conflict could disrupt one of the world’s most important energy corridors.
The International Energy Agency (IEA) warned that the war has already created one of the largest supply disruptions in modern oil markets, intensifying fears of inflation and slowing economic growth.
Higher oil prices typically raise transportation and manufacturing costs, which can feed into consumer prices and complicate central-bank policies.
Broad Sell-Off Across Sectors
The market decline was widespread, with most sectors ending the day lower as investors moved away from risk assets.
Financial stocks, consumer companies and technology firms were among the biggest decliners, while energy stocks were the only major sector to post gains, benefiting from the sharp increase in crude prices.
Analysts noted that rising oil prices can hurt companies that rely heavily on fuel or logistics costs, including airlines, shipping companies and travel operators.
Investors Brace for Prolonged Volatility
The market reaction highlights how sensitive global equities are to geopolitical risks involving energy supply.
Iran’s leadership has threatened to block the Strait of Hormuz, a narrow shipping lane through which roughly 20% of global oil supply passes, raising concerns about prolonged disruptions to global energy trade.
If oil prices remain elevated, economists warn it could push inflation higher and complicate interest-rate decisions by the U.S. Federal Reserve.
For now, traders are closely monitoring developments in the Middle East, recognising that energy markets, and the Strait of Hormuz, remain a key flashpoint for global financial markets.
