Nearly $1T Wiped Off The Market as Trump Terminates MOU With Iran

Diplomatic Framework Collapses at NATO Summit

President Donald Trump declared the US-Iran Memorandum of Understanding (MOU) finished on July 8, 2026, dealing a sharp blow to global financial markets and peace efforts in the Middle East. Speaking to reporters at the NATO summit in Ankara, Trump declared the MOU with Iran "over" and attacked Iranian leaders as "sick" and "vicious, violent people."

The Iran MOU was officially signed on June 17, starting a 60-day clock for negotiations on Tehran's nuclear program. Talks had been stuck on reopening the Strait of Hormuz, as Iran insisted on setting the terms for the waterway while also demanding an end to Israeli attacks on its proxy Hezbollah in Lebanon. The collapse of those talks now puts the entire diplomatic architecture at risk.

Trump's comments came after the US launched fresh strikes on Iran following attacks on commercial vessels in the Strait of Hormuz. Iran's Islamic Revolutionary Guard Corps had launched strikes overnight on US military targets in Kuwait and Bahrain, including Bahrain's Isa Air base, which hosts US forces. The administration had also revoked a sanctions waiver allowing the sale of Iranian oil and petrochemicals after the attacks in the strait.

Markets React Sharply as Risk-Off Trade Takes Hold

Financial markets moved swiftly in response. The price of oil surged more than 5% early Wednesday after Trump said the ceasefire deal with Iran was "over" and the United States was planning additional strikes. US stocks fell on Wednesday morning, with the S&P 500 down 0.6%, the Nasdaq Composite tumbling 0.5%, and the Dow Jones Industrial Average falling 600 points.

Capital.com market analyst Daniela Hathorn noted that "renewed tensions in the Middle East have interrupted what had become an increasingly complacent market narrative, prompting investors to reassess geopolitical risks after several weeks of pricing in a smooth path toward de-escalation." Geoff Yu, senior market strategist at BNY, warned that "for markets and the global economy, the prospect of a swift return to pre-conflict energy and goods flows through the waterway is fading."

The reversal is a stark contrast to the optimism that followed the MOU signing last month. US stocks had rallied on hopes that the tentative deal would restore stability to energy supply chains, with the S&P 500 rising 1.7% and approaching its all-time high. Those gains are now under threat as the region moves back toward open conflict and institutional capital rotates out of risk assets.

Sources:
NBC News: Oil prices surge 5%, stocks tumble after Trump says Iran ceasefire is 'over'
The Hill: Donald Trump calls Iran MOU 'waste of time' as strikes escalate
Al Jazeera: Iran war live: Trump says MoU to end Iran war is 'over'