Key Takeaways:
US stock futures plunged and oil surged after President Donald Trump said the Iran peace memorandum was "over."
Dow futures tumbled more than 500 points Wednesday after President Donald Trump declared the US-Iran ceasefire "over," sending oil prices surging and reigniting geopolitical risk across global markets.
"When you have a ceasefire and Iran is basically violating the ceasefire, I think it is totally crucial that the US forcefully reacts," Mark Rutte, NATO secretary general, said at the alliance's summit in Ankara, Turkiye, where he defended the overnight US strikes on Iranian targets.
The selloff in futures followed an overnight exchange of fire that shattered a fragile month-long truce. US Central Command said it hit more than 80 targets, including air defense systems, coastal radar installations and 60 Islamic Revolutionary Guard Corps small boats. Iran responded by striking what it said were 85 US military installations in Bahrain and Kuwait, according to state broadcaster IRIB. Brent crude jumped about 6% to $78 a barrel, while European stocks fell 1.6%.
The collapse of the memorandum of understanding — which had paused the 2026 Iran War and allowed limited Iranian oil sales — introduces a fresh inflationary shock to markets already pricing in elevated interest rates. Higher energy costs threaten to squeeze corporate margins, particularly for transport and consumer discretionary sectors, while the VIX is expected to open sharply higher.
The Dow Jones Industrial Average futures contract dropped as much as 534 points, or 1.4%, before paring some losses. S&P 500 and Nasdaq 100 futures also declined, with technology shares bearing the brunt of the selling as investors rotated out of growth names on concern that higher oil prices would delay Federal Reserve rate cuts.
The 10-year US Treasury yield rose as investors priced in higher inflation expectations, while the dollar strengthened against major peers. The DXY index, which tracks the greenback against six major currencies, climbed as haven demand offset the risk of a prolonged Middle East conflict.
Trump made the remarks at the opening of the NATO summit in Ankara, where he accused Iran of violating the ceasefire by targeting commercial vessels in the Strait of Hormuz. "I think it's over," Trump told reporters when asked about the future of the agreement. "I don't want to deal with them anymore, they're scum."
The US also revoked sanctions waivers that had permitted Iran to continue limited oil sales under the interim peace agreement reached June 17. The EU's top diplomat, Kaja Kallas, said the exchanges of fire "further complicate already fraught talks to end the war."
The next catalyst for markets will be any further escalation in the Strait of Hormuz, through which about 20% of the world's oil passes. Traders are also watching for the US weekly crude inventory report and any statements from Federal Reserve officials on how the geopolitical shock might affect the rate path.
This article is for informational purposes only and does not constitute investment advice.
