Iran agrees to end enrichment of uranium by June 30?

Platform comparison

Market context

Iran's nuclear programme has been a flashpoint in international diplomacy for two decades. This market asks whether Iran will publicly commit to halting all uranium enrichment by the end of June 2026. A YES share pays out if Iran makes such a pledge—whether unilaterally, through a bilateral deal with the United States, or as part of a broader agreement involving Israel or other parties. The pledge need only be announced before the deadline; implementation timing is irrelevant to resolution. A NO share wins if no such agreement materialises within the window.

The 2015 Joint Comprehensive Plan of Action (JCPOA) saw Iran agree to limit enrichment to 3.65 per cent purity, but the agreement collapsed after the US withdrew in 2018. Since then, Iran has steadily increased enrichment levels, reaching 60 per cent purity by 2022—closer to weapons-grade material. Previous negotiations have taken months or years to conclude, and the current geopolitical climate remains fractious. The 12 per cent implied probability reflects the low base rate of breakthrough agreements in this domain, though the Trump administration's return to office in January 2025 introduces unpredictability around negotiating posture and timelines.

Key catalysts include any direct US-Iran talks, Israeli pressure regarding nuclear threats, and statements from Iran's leadership signalling openness to dialogue. The International Atomic Energy Agency's quarterly reports on enrichment levels will provide context on whether Iran is moving toward or away from a deal. Announcements from the State Department, Iranian foreign ministry, or multilateral bodies like the UN Security Council should be monitored closely through mid-2026.

Methodology

This page reviews Iran agrees to end enrichment of uranium by June 30? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Prediction Market UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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?

On Prediction Market UK, 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.

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.

What does it cost to trade on Prediction Market UK?

Zero. Prediction Market UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.