US-Iran Final Nuclear Deal by…?

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Market context

On 17 June 2026, the United States and Iran signed a Memorandum of Understanding in Switzerland, committing to negotiate a final nuclear deal within 60 days while maintaining the current status quo on enrichment and sanctions. This framework, mediated by Qatar and Pakistan, includes immediate economic concessions such as oil export waivers and the release of frozen assets, alongside a pledge that Iran will not develop nuclear weapons [1][2]. The agreement explicitly establishes a de-confliction cell to halt military actions in Lebanon and sets direct communication channels for ongoing talks [2].

Historically, similar US-Iran diplomatic phases have collapsed when technical negotiations over highly enriched uranium stockpiles dragged beyond deadlines, with Iran often using the process to extract concessions without delivering a binding final instrument [3]. The 2018 Joint Comprehensive Plan of Action was withdrawn by President Trump precisely because it delayed, rather than prevented, nuclear weapons development, a pattern experts warn could recur if the current 60-day window fails to produce a signed final deal endorsed by a UNSC resolution [1][6]. Given the 0% crowd-implied probability, the market reflects deep scepticism that Iran will ship its 60% enriched uranium to the US or fully dismantle its programme within the specified timeframe [5].

Traders should monitor the scheduled technical discussions over the next two months, particularly any announcements regarding the disposition of Iran’s roughly thousand pounds of 60% enriched uranium buried in tunnels [5]. Key dependencies include whether the US Treasury issues the promised waivers for Iranian crude oil exports and whether IAEA inspectors are permitted back into Iran as Vance stated they could be by Monday [1][2]. Any delay in the 60-day negotiation window or failure to secure a binding UNSC resolution for the final deal would confirm the market’s "No" outcome, as the instrument must be mutually signed by both parties before the 2026-08-31 settlement deadline [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

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

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 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.