The ongoing US-Israel conflict with Iran has sent shockwaves through American financial markets, marking the steepest decline since hostilities began. On Thursday, 26 March 2026, the Dow Jones Industrial Average fell by 450 points, while the S&P 500 dropped 1.7%. The tech-focused Nasdaq saw a more significant decline, plummeting 2.3% and entering correction territory, defined as a fall of at least 10% from its recent peak.
Oil Prices Surge Despite Optimistic Forecasts
As tensions in the Middle East escalate, oil prices have surged to levels reminiscent of the 2022 and 2023 peaks following Russia’s invasion of Ukraine. By the end of Thursday’s trading, Brent crude was priced at approximately $107 per barrel, while US crude stood at $93. This increase has led to average petrol prices in the US reaching $3.98 a gallon, according to the American Automobile Association (AAA).
In a cabinet meeting, President Donald Trump remarked that the rise in oil prices had not been as severe as he initially anticipated. “It’s all going to come back down to where it was, and probably lower,” he stated, expressing confidence that the stock market would rebound once the conflict subsided.
Mixed Signals from the White House
Despite Trump’s assurances, investor confidence appeared shaky. Markets reacted negatively to a tweet from the president cautioning Iranian negotiators to “get serious, before it’s too late,” warning that failure to do so would lead to dire consequences. However, he later suggested that significant discussions were taking place with Iran, noting that the country allowed ten oil tankers to pass through the strategically important Strait of Hormuz—a gesture he described as a “present” to the US.
Adding to the uncertainty, the White House announced a ten-day extension of its pause on strikes targeting Iranian energy infrastructure, lasting until 6 April. Trump reiterated that negotiations were progressing well, contrasting with narratives presented by certain media outlets.
Economic Outlook Dampened by Conflict
The Organisation for Economic Co-operation and Development (OECD) released a report forecasting that US inflation would average 4.2% this year, a sharp increase from the expected 2.6% in 2025. The OECD also highlighted that inflation across the G20 nations is expected to rise by 1.2% on average, attributing much of this pressure to escalating oil prices. The report warned that rising costs, particularly for imported fertiliser from the region, could have a ripple effect throughout the supply chain.
“The evolving conflict in the Middle East has human and economic costs for the countries directly involved and will test the resilience of the global economy,” the report concluded.
Why it Matters
The current turmoil in the Middle East not only poses immediate risks to financial markets but also raises broader concerns about global economic stability. As inflation rises and oil prices soar, consumers and businesses alike may face increased costs, leading to a potential slowdown in economic growth. The interplay between geopolitics and the economy underscores the fragility of the current situation, reminding us that events far from home can have significant consequences on everyday life.
