US-Iran Final Nuclear Deal by…?

Platform comparison

Market context

The underlying real-world event is a newly signed initial pact between the United States and Iran, finalised by President Trump on 13 June 2026, which mandates Tehran to reduce its highly enriched uranium stockpile and suspends US sanctions in exchange for Iran’s ability to export oil freely. This interim agreement, confirmed by AP News, establishes a 60-day window for negotiations on Iran’s nuclear future while keeping the option for renewed military action open[1]. The deal aims to restore pre-war status quo, reopen the Strait of Hormuz, and initiate technical talks on uranium enrichment levels[1].

Historically, comparable cases such as the 2015 JCPOA show that initial agreements often stall when core issues like uranium reserves and sanctions relief remain unresolved, leading to eventual collapse rather than finalisation[6]. The current 0% crowd-implied probability reflects this pattern: despite the MOU’s signing in Geneva on 19 June, critical disagreements persist over $12bn in frozen assets and IAEA inspector access, with Iranian officials denying US claims of consent[3][4]. Programmatic traders should model this market as a binary outcome where the probability of a final signed instrument hinges on resolving these dependencies within the 60-day window, treating unresolved technical disputes as high-risk failure points.

Key catalysts to monitor include the scheduled formation of two working groups on sanctions and nuclear activities, expected within days, and any public statements from US Vice President JD Vance or Iranian Foreign Minister Abbas Araghchi regarding progress[3]. Traders must watch for announcements on IAEA inspector deployment, as Grossi of the IAEA insists inspection is mandatory for supervision under the MOU[4]. Recent news from Al Jazeera highlights that unresolved issues include the status of enriched uranium reserves and detailed sanctions relief terms, which could derail negotiations if not addressed promptly[3]. Conditional orders should be triggered by any official confirmation of inspector access or asset unfreezing, as these are critical dependencies for a qualifying final instrument.

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). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. 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 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Review UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.