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US-Iran nuclear deal by May 31?

How the prediction-market book is pricing "US-Iran nuclear deal by May 31?" right now, with a side-by-side platform comparison and zero-fee CTAs.

12% YES 88% NO Volume: $1.1M Liquidity: $33K Closes: 31 May 2026
Trade on PolyGram →

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
PolyGram Pick
polygram.ink
12% 88% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open on PolyGram →
Polymarket
polymarket.com
12% 88% 0% Geo-blocked in US/UK/EU USDC, on-chain Open on PolyGram →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open on PolyGram →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open on PolyGram →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open on PolyGram →

Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.

Market context

This market will resolve to "Yes" if an official agreement over Iranian nuclear research and/or nuclear weapon development, defined as a publicly announced mutual agreement, is reached between the United States and Iran by May 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. If such an agreement is officially reached before the resolution date, this market will resolve to "Yes", regardless of if/when the agreement goes into effect. Agreements that include the United States a

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?
On PolyGram, 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'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?
Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.

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Live order book, 0% fees, USDC settlement in seconds.

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