Iran agrees to end enrichment of uranium by May 31?

Platform comparison

Market context

Iran's agreement to halt uranium enrichment represents a fundamental shift in its nuclear posture and would mark a dramatic reversal of two decades of escalating programme expansion. The crowd implies just a 12% chance of such a public commitment by end-May 2026, pricing in the substantial structural barriers to any deal.

Historical precedent suggests the odds reflect realistic constraints. The 2015 Joint Comprehensive Plan of Action saw Iran agree to curb enrichment, yet that framework collapsed in 2018 when the US withdrew. Since then, Iran has steadily advanced its enrichment capabilities—currently operating over 6,000 centrifuges and producing uranium at 60% purity, closer to weapons-grade levels than at any prior point. Previous negotiations have taken years to conclude; the original JCPOA negotiations spanned roughly two years of intensive talks. The 2023 UN General Assembly saw Iran reject calls to halt enrichment, and domestic political constraints within Iran have only hardened around the nuclear programme as a symbol of national sovereignty.

Catalysts over the next eighteen months centre on US policy shifts following the 2024 election cycle and any Israeli military actions that might force Iran's hand diplomatically. The International Atomic Energy Agency's November 2024 reports documented Iran's continued expansion of enrichment capacity. Any credible pathway to agreement would likely require either a comprehensive new diplomatic framework—itself a multi-month undertaking—or external pressure severe enough to alter Iran's calculus. The current 12% probability reflects consensus scepticism about either materialising within the settlement window.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.