Who will attend US-Iran signing ceremony?

Platform comparison

Active sub-markets

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 asks whether a specified individual will physically attend that ceremony by the 7 July deadline. The crowd currently prices attendance at 28%, suggesting meaningful scepticism about whether the named figure will show up.

Historical precedent matters here. The 2015 Joint Comprehensive Plan of Action (JCPOA) saw high-level attendance from both sides despite mutual mistrust; Iran's foreign minister and nuclear negotiator attended the Vienna signing, whilst the US sent Secretary of State John Kerry. However, the Trump administration's 2018 withdrawal and subsequent escalation created a twelve-year gap in formal bilateral ceremonies. The current 28% probability reflects uncertainty about whether this 2026 agreement represents genuine rapprochement or a narrower technical accord. Comparable recent US-adversary signings—such as the Abraham Accords in 2020—drew senior figures but operated in different diplomatic contexts. The baseline for high-level attendance at US-Iran ceremonies historically runs higher than 28%, suggesting either the individual in question carries lower institutional weight or market participants doubt the ceremony will proceed as scheduled.

The critical variable is whether the signing occurs on 19 June as announced. Any postponement, venue change, or downgrade in formality would alter attendance calculus. Traders should monitor State Department and Iranian foreign ministry statements for confirmation in late May and early June. Secondary indicators include whether other signatories confirm attendance and whether either government signals domestic political constraints on participation.

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, 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 does it cost to trade on Who Will Win?

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

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 triggers a quick verification flow that finishes in minutes.