Who will attend the next US x Iran diplomatic meeting?

Platform comparison

Active sub-markets

Market context

The real-world event is whether a named official is physically present at the next formal US-Iran diplomatic meeting before 30 June 2026. That matters because these markets resolve on attendance at an authorised bilateral meeting, not on statements, mediators’ contacts, or indirect channels, so even active diplomacy can still leave the outcome at no if the person does not actually turn up.

The 0% crowd price looks conservative against the recent pattern of stop-start engagement. Reuters reported on 18 April that no date had been set for the next round of negotiations and that a foundational agreement was still needed[4]. By contrast, CNBC reported in February that Oman said the next talks would be held in Geneva, showing how quickly scheduling can firm up once intermediaries align both sides[1]. Recent Polymarket listings also indicate continuing mediated engagement, including reports of a memorandum of understanding and new formal talks, which suggests the base rate is driven more by diplomatic logistics than by whether contact exists at all[2][3].

For traders, the main catalysts are official venue and date announcements, confirmations from mediators such as Oman, Pakistan or Switzerland, and any public comments on the nuclear file, sanctions sequencing, or ceasefire-linked conditions. The accessible angle is also regulatory: under German GlüStV, unauthorised gambling-style access can trigger blocking and enforcement risk for German users; in the US, CFTC jurisdiction is the broader reference point for event contracts tied to political outcomes. In practice, “no-KYC up to $1,500” means smaller users may be able to enter without identity checks until they cross that threshold, but it does not remove geoblocking, residency checks, or market-specific eligibility limits.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Who will attend the next US x Iran diplomatic meeting? 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 Polymarket Legal UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Polymarket Legal UK, 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 Polymarket Legal UK?

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

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.