Who will attend US-Iran signing ceremony?

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Market context

The US and Iran announced a written diplomatic agreement on 14 June 2026, with a signing ceremony scheduled for 19 June. The market tests whether an authorised representative will physically attend an official signing event by 7 July 2026. The 41% implied probability reflects genuine uncertainty about whether the ceremony will occur as planned or be postponed, cancelled, or held without key attendees.

Historical precedent suggests signing ceremonies between adversarial powers often proceed despite political friction. The Iran nuclear deal (JCPOA) in 2015 saw all parties attend formal signing events despite years of tension. However, US-Iran relations remain volatile; the Trump administration's 2018 withdrawal from the JCPOA and subsequent sanctions escalation created a pattern of reversed commitments. The current 41% probability sits between outright scepticism and confidence, reflecting traders' assessment that a June announcement carries execution risk but is not implausible given the formal announcement already made.

Key catalysts include any statement from either government confirming or delaying the ceremony date, congressional pressure on US officials, or Iranian domestic political opposition. The compressed timeline—only three weeks between announcement and the scheduled ceremony—leaves limited room for negotiation adjustments. Market watchers should monitor official State Department and Iranian Foreign Ministry communications closely. Any shift in tone from either capital, or statements from attending officials, will likely move the probability sharply. The settlement window extends to 7 July, providing a two-week buffer after the announced date for rescheduled events.

Methodology

We track Who will attend US-Iran signing ceremony? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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?

On Who Will Win 2026, 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?

Who Will Win 2026 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 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?

Not under $1,500 of lifetime trading volume. Above that threshold, Who Will Win 2026 triggers a quick verification flow that finishes in minutes.

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.