Iran agrees to surrender enriched uranium stockpile by 2026?

Platform comparison

Market context

Iran's agreement to relinquish its enriched uranium stockpile—whether in whole or in part, and whether unilaterally or through negotiation with the United States or Israel—represents a fundamental shift in Tehran's nuclear posture. The crowd currently prices this outcome at zero probability by March 2026, reflecting the substantial diplomatic and political barriers to such a concession within the timeframe.

Historical precedent offers limited encouragement for the underdog position. Libya's 2003 surrender of its nuclear programme followed years of covert weapons development and came only after regime change calculations shifted dramatically. The Joint Comprehensive Plan of Action (JCPOA) of 2015 saw Iran commit to uranium limits and inspections, yet never to surrendering existing stockpiles outright; even that agreement fractured after the United States withdrew in 2018. Iran has since expanded enrichment to 60% purity, moving further from civilian-use thresholds. Previous negotiations have treated stockpile reduction as a negotiating point rather than a precondition, suggesting any agreement would require extraordinary concessions in return.

Catalysts remain sparse. A change in U.S. administration following the 2024 election could theoretically restart talks, though current rhetoric from both major parties emphasises pressure rather than dialogue. Israeli military operations or credible threats thereof might theoretically force Iran's hand, though historical responses have typically involved defiance rather than capitulation. Any public Iranian agreement would require domestic political cover—a challenge given hardliner dominance in Tehran's decision-making structures. The zero probability reflects rational scepticism; material movement would require either a dramatic geopolitical rupture or a negotiated settlement with terms currently unimaginable to either party.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win. 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.