US-Iran Final Nuclear Deal by…?

Platform comparison

Market context

The US and Iran have already announced a written framework, and reporting in June said the memorandum of understanding was set for signing in Switzerland, with a 60-day negotiation period to follow on the nuclear issue. That matters because this contract does not ask whether talks continued, but whether a *qualifying written diplomatic instrument* was mutually signed or formally adopted by the deadline; on the public record, the event described in the market text appears to have happened well before expiry, which explains why prediction-market pricing can diverge sharply from an outright “ceasefire-or-peace” headline view.[9][11][16]

The historical comparison is the 2015 Iran nuclear deal: broad political understandings came first, but the market-relevant question was always whether negotiators could convert them into a signed instrument with specific obligations, verification and sanctions terms. Recent February talks also showed how fragile that path can be, with Reuters and AP reporting progress in one round and no deal in another, while ISW argued Iran was unlikely to accept the hardest US demands. That mix supports a wider spread between sportsbook-style binary pricing, which usually tracks headline conflict risk, and market-implied probability on a formal-document contract, where the existence of a signed MoU can matter more than the substance of later disputes.[3][7][10][12][13]

For traders, the key catalysts are not battlefield developments but paperwork: any fresh joint statement, release of the signed text, confirmation from mediators in Qatar or Pakistan, or IAEA-facing language on inspections and enrichment. Reuters reported that signing discussions were being held in Europe and that a 60-day bargaining window would begin afterwards, while later coverage said inspectors were being granted access to Iranian sites, a sign that implementation language was already being operationalised. If no qualifying instrument is publicly adopted by the settlement cut-off, the market should revert to No regardless of how advanced the broader talks appear.[6][8][9][11]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi vs Polymarket, which mirrors the Polymarket order book directly.

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

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

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.