Iran agrees to end enrichment of uranium by June 30?

Platform comparison

Market context

Iran publicly agreeing to end all uranium enrichment by June 30, 2026, is the real-world event this Polymarket contract prices at 0% YES today, reflecting near-total market scepticism. On-chain, the market trades USDC on Polygon using conditional tokens, where a “Yes” resolution requires an official pledge from Iran, whether unilateral or part of a deal with the U.S. or Israel. The settlement window closes at midnight ET on 30 June 2026, and any agreement made before that date qualifies regardless of when it takes effect.

Historically, Iran’s nuclear commitments have been fragile: the 2015 JCPOA imposed strict limits, but Tehran exceeded stockpile caps and enrichment levels by 2019, eventually enriching uranium to 83.7% purity at Fordow [5][6]. Even the recent June 2026 memorandum of understanding between the U.S. and Iran only sets a 60-day ceasefire and leaves nuclear issues unresolved, with massive gaps persisting over 440kg of enriched uranium [1][4]. These precedents frame why the market assigns zero probability to a full enrichment halt.

Traders should monitor upcoming announcements from the U.S. State Department and Iran’s Ministry of Foreign Affairs, as formal deals require public confirmation from both sides [2]. Key catalysts include the outcome of talks on the Strait of Hormuz reopening and any progress on diluting Iran’s 60% enriched stockpile, which Reuters reported as part of a draft deal including oil sanctions waivers [8]. The IAEA’s next safeguards report, expected soon, will also clarify whether Iran is complying with existing limits [9].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Iran agrees to end enrichment of uranium by June 30? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.