Talks between the United States and Iran have hit a delay, with negotiations postponed indefinitely, according to sources familiar with the matter. The hold-up sent European stocks lower and reignited questions about whether Tehran will scale back its nuclear program in exchange for economic relief.
Why the talks stalled
The postponement follows a statement from Iran's supreme leader, who described the interim terms floated by Washington as conditional. That language gave U.S. negotiators little room to move forward without clearer commitments, people close to the discussions said. Iran's leadership has long insisted on full sanctions relief before any enrichment pause, but Washington wants verifiable steps first.
Market reaction: odds and sell-offs
Predictions from Polymarket, a crypto-based betting platform that tracks geopolitical outcomes, now give just a 13.5% chance that Iran ends enrichment by July. That's down from higher odds earlier this month, when the two sides appeared close to a framework. European equities took a hit on Tuesday, with the STOXX 600 falling 0.8% as traders priced in a longer diplomatic standoff. Energy and defense stocks were mixed, reflecting uncertainty about oil supply risks and the possibility of renewed sanctions enforcement.
Vance draws a red line
Vice President JD Vance weighed in on the delay, stating that any economic relief for Iran hinges on full compliance with U.S. demands. His remarks appeared to stiffen the administration's negotiating posture, leaving little room for partial deals. The White House has not commented on a revised timeline for resuming talks.
What comes next
Without a new date on the calendar, the diplomatic window is narrowing. Iran's enrichment activity continues at levels that worry nonproliferation experts, and the supreme leader's conditional language suggests no quick breakthrough. Investors now watch for any signal — a new offer, a backchannel meeting, or another postponement — that could shift the 13.5% probability before July.
