Who will attend US-Iran signing ceremony?

Platform comparison

Market context

The US and Iran have finalised a memorandum of understanding, with a formal signing ceremony scheduled for Friday, 19 June in Switzerland. Despite the announcement, the ceremony is now in doubt; Iran’s foreign ministry has declared the event off, and the White House has confirmed that arrangements for upcoming technical discussions remain unconfirmed [4][7].

Historically, such high-stakes diplomatic breakthroughs between adversarial states often see attendance by deputy-level officials rather than top-tier leaders, unless a regional broker is directly involved. In this case, Pakistan’s Shahbaz Sharif, who brokered the deal, is expected to attend, while Qatar remains the most likely Gulf state representative [3]. This pattern supports the market’s current 3% YES probability, as top-level attendance remains uncertain without confirmed guest lists.

Traders should monitor official statements from both the Iranian foreign ministry and the US White House regarding venue confirmations and delegate schedules. Any shift in the ceremony’s status—such as a move to a remote signing or a change in location—will directly impact the likelihood of the listed individual attending [2][4]. The settlement window ends 7 July 2026, so real-time on-chain updates via USDC on Polygon and conditional token movements will reflect shifting crowd sentiment as news emerges.

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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram 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.