Who will sign U.S. x Iran deal?

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Market context

A formal agreement between the United States and Iran, signed by the listed individual in an official capacity, would represent a significant diplomatic reversal. The current 19% probability reflects the structural difficulty of such a deal within the 18-month window, given the breakdown of the Joint Comprehensive Plan of Action (JCPOA) in 2018 and the subsequent escalation of sanctions and nuclear programme advancement by Iran. Any qualifying agreement need not be limited to nuclear matters; it could encompass sanctions relief, prisoner exchanges, or broader normalisation frameworks, provided both nations are formal parties and the signatory acts in official capacity.

Historical precedent suggests that U.S.–Iran agreements emerge from either sustained diplomatic pressure or sudden geopolitical shifts. The JCPOA itself took years of negotiation under the Obama administration before signature in 2015. The Trump administration's withdrawal and subsequent "maximum pressure" campaign created a baseline of mistrust that persists. Comparable cases—such as the 2015 Cuba normalisation or the 2023 China–Iran strategic partnership—show that breakthrough agreements typically require either a change in administration priorities or a catalytic external event. The current probability discount reflects scepticism about either condition materialising by mid-2026.

Traders monitoring this market should track statements from the State Department, announcements regarding sanctions policy, and any multilateral diplomatic initiatives involving European or Gulf mediators. Recent reporting indicates Iran has signalled willingness to negotiate under certain conditions, though no formal talks are scheduled. Programmatically, this market exhibits low volatility outside election cycles and geopolitical crises; conditional orders tied to specific news triggers (e.g., "if U.S. announces nuclear negotiations resumption") would capture sharp probability movements more efficiently than continuous monitoring.

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

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 Polymarket Review 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Review UK 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.