Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
47% | 53% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
47% | 53% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| August 31 | 47% |
| July 31 | 20% |
| July 10 | 17% |
| June 26 | 0% |
| June 30 | 0% |
Market context
The United States and Iran have formally agreed to a 14-point memorandum of understanding that ends their immediate conflict and launches a 60-day negotiation window for a final peace deal, with the US committing to lift its naval blockade and sanctions while Iran guarantees safe passage through the Strait of Hormuz[1][3]. On Polymarket, this contract trades at 0% probability for a US withdrawal from the process, reflecting the market’s view that the on-chain conditional tokens (settled in USDC on Polygon) are pricing in the high stakes of the signed agreement rather than the abstract risk of a sudden reversal[2][5].
Historically, major powers rarely abandon negotiated frameworks once public commitments and reciprocal concessions—such as the release of frozen Iranian assets and the reopening of maritime routes—are locked in, as seen in prior Middle East ceasefires where mutual dependency cemented adherence[4][7]. The 0% price suggests traders recognise that the US has already issued waivers for Iranian crude exports and pledged to restore vessel traffic, making a unilateral exit diplomatically costly and economically inconsistent with the established 60-day timeline[1][6].
Traders should monitor the formal signing date in Switzerland, the 30-day deadline for blockade removal, and any White House statements regarding the final agreement’s ratification by the UN Security Council, as these are the critical catalysts for process continuity[1][8]. Recent reporting confirms the US and Iran are proceeding with talks in Switzerland, and any deviation would require an official announcement from the US government or an authorised representative, which remains the sole settlement condition for a “Yes” outcome[3][9].
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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
- 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.
- 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 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.
- 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.
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