Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
27% | 73% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
27% | 73% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Market context
Iran would have to publicly commit to ending all uranium enrichment by 31 December 2026 for this market to pay out, and the current **27%** crowd price looks materially below the tone of the latest diplomacy. Polymarket’s own market blurb points to ongoing US–Iran talks, a framework agreement, and reports that Tehran may dispose of or downblend stockpiles under IAEA supervision, but it also notes that permanent zero-enrichment remains a core dispute[12]. That makes the contract narrower than a generic “deal” headline: any short moratorium, phased limitation, or partial enrichment cap would still fail here. On a cross-platform basis, the best comparison is with the broader diplomatic narrative rather than a direct sportsbook line; where opinion appears to lean higher on a negotiated pause than on a definitive end to enrichment, this venue’s 27% implies scepticism that talks will reach the specific wording needed for settlement[12][14].
History argues for caution. Under the JCPOA, Iran accepted strict enrichment caps and stockpile limits, but those restraints were time-limited and later unraveled as Iran resumed enrichment after the US withdrawal[5][19][20]. More recently, the IAEA has said Iran was required to suspend all enrichment-related activities, yet its ability to verify compliance has been impaired, and recent reports have continued to describe unresolved safeguards and access issues[4][11]. In November 2025, however, Iranian officials said Iran was no longer enriching uranium, which shows how quickly rhetoric can shift even when a durable, verifiable pledge remains uncertain[2].
Traders should watch whether the current US–Iran process produces a written final accord, not just a framework or ceasefire extension. CNN reported that the June memorandum opened a 60-day period to finalise terms, with enrichment and enriched-material disposition explicitly left for later negotiation[10], while UN reporting said the technical work window was meant to address enrichment by Iran within that same period[14]. Key catalysts are likely to be joint statements from Washington and Tehran, IAEA reporting on stockpile disposition or verification, and any explicit reference to “no enrichment” rather than temporary limits or suspension[8][10][11].
Methodology
This page reviews Iran agrees to end enrichment of uranium by December 31? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
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?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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 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.
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