Israel x Iran permanent peace deal by 2026?

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Market context

Israel and Iran have not announced any permanent peace arrangement, and the market is pricing that absence at 0% YES. On that framing, the consensus is that a durable deal by 31 May would be an extreme underdog outcome: the baseline expectation is continued hostility management, not a formal end-state settlement. For a handicapper, the main value question is not whether tensions have eased, but whether the next headline crosses the much higher bar of explicit permanent cessation language. Temporary pauses, deconfliction channels, or third-party mediation would not be enough for a YES here.

Comparable cases suggest why the probability sits at the floor. Past Israel-Iran contacts, where they exist at all, have tended to be indirect, tactical, or routed through intermediaries, while regional ceasefires have usually been limited in scope and duration rather than mutual recognition of peace. Recent reporting also points away from a breakthrough: ISW said on 6 April that Iran rejected a ceasefire agreement with the United States, underlining how fragile even narrower arrangements have been. Britannica’s summary of the 2026 Iran war likewise describes ceasefire language rather than a lasting political settlement, which reinforces the gap between a pause in fighting and a permanent peace deal.

The main catalysts to watch are any public statements from Jerusalem, Tehran, Washington, or mediators such as Pakistan or Gulf states, plus signs of back-channel diplomacy tied to prisoner exchanges, sanctions relief, or maritime security in the Strait of Hormuz. If a ceasefire starts fraying, that is more likely to cut against this market than to produce a lasting accord; if talks resume, traders should look closely at the exact wording. The favourite remains “No” by a wide margin, with any contrarian value only if a sudden diplomatic track emerges and explicitly includes permanent, bilateral termination of hostilities.

Sources: 1 · 2 · 3 · 4 · 5

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 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.

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.

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.