US-Iran nuclear deal by June 30?

Platform comparison

Market context

A formal US-Iran nuclear agreement must be publicly announced by 30 June for this market to settle Yes, and the current 28% price implies traders see a real but still limited chance of a quick breakthrough. That is broadly consistent with the recent record: talks resumed in February, but the fifth round in Rome on 23 May ended without a breakthrough, even though both sides said they would continue. Earlier reporting has pointed to sharp gaps on the core terms, with Washington pressing for no enrichment and broader limits on Iran’s programme, while Tehran has continued to argue for some level of enrichment and sanctions relief.

For traders, the key catalysts are the next official statement from either government, any Omani-mediated follow-up, and whether the parties move from exploratory contacts to a text that can be announced before the deadline. Reporting in recent weeks has described a draft memorandum on ending hostilities and a 30-day phase for a fuller deal, but Iranian officials have also indicated that nuclear questions may be deferred to a second stage, which weakens the case for an immediate signed agreement. Any change in the military situation, sanctions posture, or the status of enrichment and inspections would matter because the market resolves only on an official mutual agreement, not on a framework or verbal understanding.

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). 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

Is this market available outside the US?

PolyGram 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.

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 it cost to trade on PolyGram?

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

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.

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.