US-Iran Final Nuclear Deal by…?

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Active sub-markets

Market context

The underlying real-world event is a fresh Memorandum of Understanding signed on 17 June 2026 between the United States and Iran, ending active hostilities and mandating a 60-day technical negotiation window over Tehran’s highly enriched uranium stockpile and sanctions relief. This initial pact, finalised by President Trump, suspends US oil sanctions and reopens the Strait of Hormuz, yet explicitly retains the option to resume military action if Iran breaches terms.

Historically, comparable cases like the 2015 Joint Comprehensive Plan of Action suggest that initial ceasefires often fail to translate into permanent final deals without ironclad verification mechanisms. The 2015 accord lifted only selective sanctions for significant uranium reductions, whereas this 2026 framework promises broader relief contingent on future progress, creating a fragile value proposition. With the crowd-implied probability at 0% YES, the consensus assumes the 60-day window will collapse over unresolved disputes regarding IAEA inspector access and frozen asset release, as reported by Al Jazeera on 23 June. However, contrarian value may sit in the US’s strategic need to stabilise regional oil flows, making a final instrument more plausible than the market currently prices.

Traders must monitor the two technical working groups forming in Geneva to address sanctions lifting and nuclear activities, alongside any public statements from Vice President JD Vance or Iranian Foreign Minister Abbas Araghchi regarding inspector returns. The critical dependency is Iran’s willingness to dilute its 60% enriched uranium stockpile, a demand Trump has linked directly to economic incentives. Recent Reuters coverage notes that while oil sanctions are temporarily waived, comprehensive relief remains tied to a conclusive agreement, meaning any delay in finalising the deal could trigger the market’s “No” resolution before the 2026-08-31 settlement window closes.

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Methodology

This page reviews US-Iran Final Nuclear Deal by…? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Who Will Win — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Who Will Win, 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.

What does it cost to trade on Who Will Win?

Zero. Who Will Win routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Who Will Win triggers a quick verification flow that finishes in minutes.