Iran agrees to surrender enriched uranium stockpile by 2026?

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Market context

The market prices Iran's public agreement to surrender its enriched uranium stockpile—or any portion thereof—by 31 March 2026 at zero probability on Polygon, with USDC settlement. This reflects the substantial gap between current Iranian nuclear posture and the threshold required for resolution. Iran currently maintains roughly 130 kilograms of uranium enriched to 60% purity, a level approaching weapons-grade material. Any formal pledge to transfer, ship, or place this material under international control would trigger a "Yes" outcome, whether announced unilaterally or negotiated with the United States or Israel.

Historical precedent offers limited optimism for traders holding YES positions. The 2015 Joint Comprehensive Plan of Action saw Iran agree to limit enrichment and submit to inspections, yet that agreement collapsed when the US withdrew in 2018. Subsequent negotiations under the Biden administration failed to restore the deal despite multiple rounds of talks in Vienna and Doha. The current Iranian government under Raisi has consistently rejected demands to halt enrichment beyond the JCPOA's original terms, and hardliners have consolidated control over nuclear policy following the 2024 presidential election. Previous agreements required years of negotiation and significant sanctions relief as incentive.

Traders should monitor developments around US–Iran diplomatic engagement following any change in American administration, scheduled International Atomic Energy Agency board meetings, and Israeli military posturing toward Iranian nuclear facilities. The incoming Trump administration's stated position on Iran sanctions and the JCPOA remains a critical variable. Any unexpected diplomatic opening or multilateral pressure campaign could shift probabilities, though the 15-month settlement window leaves limited time for the sustained negotiations such agreements historically demand.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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 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.

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.

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.