Pronóstico: Who will attend US-Iran signing ceremony?

Platform comparison

Market context

On 14 June 2026, the United States and Iran announced a written diplomatic agreement, with a formal signing ceremony set for 19 June in Switzerland. Today, Polymarket prices the contract that a specific listed individual will attend this event at just 3% YES, reflecting deep scepticism about the ceremony’s viability. The on-chain mechanics are straightforward: trades settle in USDC on the Polygon network using conditional tokens, meaning liquidity is locked until the settlement window closes on 7 July 2026 at 11:59 PM ET.

Historically, such high-stakes diplomatic signings between adversarial states have frequently been delayed or downgraded to remote formalities. In 2026, Iran’s foreign ministry explicitly stated the signing event is off, while the White House confirmed arrangements for technical discussions remain unconfirmed [6]. This mirrors past cases where ceremonial events were scrapped due to security concerns or political shifts, pushing the actual execution to a sealed, non-public format rather than a public gathering.

Traders should monitor immediate announcements regarding venue confirmations, delegate schedules, and any shifts in regional broker involvement. Pakistan’s Shahbaz Sharif, who brokered the deal, is expected to attend, while Qatar remains a likely Gulf participant [4]. However, with Iran’s deputy foreign minister being the only Iranian official publicly linked so far, and no confirmed US attendee list, the probability of a physical ceremony with broad attendance remains low [4]. Any sudden reversal from Iran’s foreign ministry or a new venue confirmation from Switzerland’s Foreign Ministry would be the primary catalyst to watch [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: Who will attend US-Iran signing ceremony? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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 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 Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.