A permanent peace deal is unlikely to be agreed between the United States and Iran this side of summer, at least that's according the would-be soothsayers on Polymarket.
As the fragile ceasefire faces economic escalations, with Donald Trump's planning to block all of Iran's crude shipments from leaving the Straight of Hormuz (effectively 'blockading the blockade') in an attempt to choke off Tehran's remaining financial arteries, Polymarket traders are pricing only a 39% likihood of a permanent peace deal before 30 June.
More broadly, the participants on the prediction market are still leaning heavily against a near-term US-Iran peace deal.
Poly traders are pricing the odds of a qualifying permanent peace agreement at just 8% in the current week (expiring 22 April), or a meagre 13% by the end of April, and still just 31% by the end of May.
In other words, prediction traders appear to be saying the same thing conventional markets are now wrestling with: de-escalation is possible, but a lasting settlement looks remote and unlikely to arrive quickly.
Scepticism comes against a sharp deterioration in the real-world backdrop. The US has moved to begin a blockade targeting maritime traffic linked to Iranian ports after talks in Pakistan collapsed over the weekend, with President Donald Trump saying the action would start immediately. The move threatens to squeeze Iran’s oil exports even harder while raising the risk that a conflict once centred on missile strikes and regional military operations spills into global shipping lanes and energy infrastructure.
The Strait of Hormuz remains the world’s most important energy chokepoint, accounting for about a fifth of global oil and liquefied natural gas flows.
Brent crude surged as much as 9.1% to near $104 a barrel after the blockade announcement, while European gas futures spiked almost 18% at one point.
On Monday, US stock futures fell as investors weighed the inflation and growth risks from another oil shock.
The wrinkle is that Polymarket traders are not fully pricing out diplomacy. The curve rises steadily from late April into June, and the contract volumes on the longer-term prediction markets are notably lighter, suggesting the hive-mind still sees some path to a formal deal if immediate brinkmanship gives way to renewed negotiations.