What Iranian demands will Trump agree to by May 31?

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Market context

The question is whether Washington will accept Iran continuing to enrich uranium by the end of May, and the market is pricing that as a low-probability outcome, with Yes at 23% implied. Consensus still looks to be that the US is closer to demanding verifiable limits, stockpile controls and monitoring than to endorsing any explicit Iranian enrichment right. That makes the current price look more like a favourite No than a live negotiation hedge, though the gap is not huge if talks are being used to freeze the file rather than settle it.

The historical read-through is mixed. Previous Iran talks have often produced interim language on “peaceful nuclear activity” or temporary caps, but Washington has usually avoided clean recognition of enrichment as a standing right. Recent reporting has pointed to back-channel diplomacy via Pakistan and to a ceasefire framework that already ties hostilities, Hormuz access and a short negotiation window together, which could create room for a narrowly worded concession. Reuters on 20 May reported that indirect contacts were still active, but US officials were resisting major sanctions relief, suggesting the more plausible bargain is limits and sequencing rather than a full acceptance of enrichment.

For traders, the key catalysts are any Trump statement on a ceasefire extension, the scheduling of the next round of talks, and whether Iran’s proposal is framed as temporary operational tolerance or a broader recognition of enrichment rights. Watch for mentions of frozen assets, sanctions relief, and nuclear site access, because a deal can qualify only if the US accepts continued enrichment in some form. The contrarian angle is that a rushed, partial agreement to keep talks alive could be enough for Yes; the value case on No is that the White House may prefer ambiguity and enforcement leverage over a formal concession before month-end.

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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.

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.