TLDR
- US stock futures fell Monday after a weekend escalation in US-Iran tensions put peace talks at risk
- Dow futures dropped 0.6%, S&P 500 and Nasdaq 100 futures each fell 0.5%
- The US Navy seized an Iranian ship; Iran fired on vessels and blocked the Strait of Hormuz
- Oil surged sharply, with WTI up 5.7% to ~$87/barrel and Brent up 4.7% to ~$95/barrel
- Gold fell 1.3%, the dollar edged up 0.1%, and Bitcoin slipped 0.5% to $74,942
US stock futures pointed lower on Monday as a weekend flare-up between the US and Iran threw cold water on peace hopes and sent oil prices sharply higher.
Futures on the Dow Jones Industrial Average slid 394 points, or 0.6%. S&P 500 and Nasdaq 100 futures each fell around 0.5%.
The sell-off comes after a strong run on Wall Street. The S&P 500 and Nasdaq both closed at record highs last week. The Nasdaq had just posted its 13th consecutive daily gain — its longest winning streak since 1992.
That momentum now faces a real test.
Over the weekend, President Trump said the US Navy intercepted an Iranian-flagged cargo ship attempting to bypass its blockade of the Strait of Hormuz, blowing a hole in its engine room. Iran, in turn, fired on vessels in the strait and shut down traffic through the waterway, walking back an earlier promise to allow some ships to pass.
BREAKING: Iran says it has attacked US military ships with drones in retaliation for the US striking and seizing an Iranian cargo vessel in the Strait of Hormuz, per Tasnim.
— The Kobeissi Letter (@KobeissiLetter) April 19, 2026
Iran’s state news agency also disputed reports of a second round of peace talks, saying the “outlook for constructive talks remains bleak.” US officials are still said to be heading to Pakistan for another round of negotiations.
Oil Spikes, Safe Havens Split
Oil markets reacted fast. Brent crude jumped 4.8% to around $94.70 a barrel. WTI climbed 5.1% to $86.82. Both remain below the $100 mark that would trigger deeper inflation fears, but the direction of travel is making investors nervous.
The renewed pressure on the Strait of Hormuz — a chokepoint for roughly 20% of global oil supply — is raising the inflation question again, just as markets had started to price in a more stable outlook.
Deutsche Bank macro strategist Jim Reid drew an uncomfortable comparison. He noted the S&P 500 jumped more than 10% in the early weeks of the Ukraine war as investors bet on a quick peace deal. “That episode is a clear warning sign,” he said.
The dollar edged up 0.1% against a basket of peers. Gold, typically a safe-haven play, actually fell 1.3% to $4,818 an ounce. Bitcoin slipped 0.5% over 24 hours to $74,942. The yield on the 10-year Treasury note rose 3 basis points to 4.27%.
What’s Ahead This Week
Earnings season doesn’t slow down. Tesla (TSLA), INTC), and United Airlines ($UAL) are all set to report this week, giving markets the next chance to focus on fundamentals rather than geopolitics.
As of Monday morning premarket, Dow futures were at 49,365, S&P 500 futures sat at 7,129.50, and Nasdaq 100 futures were at 26,718.75.
Iran’s Islamic Republic News Agency continued to cast doubt on the prospects for a deal as of Sunday.
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