Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
80% | 20% | 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 → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Mojtaba Khamenei | 80% |
| No Head of State | 6% |
| Reza Pahlavi | 3% |
| Alireza Arafi | 3% |
| Hassan Khomeini | 1% |
| Masoud Pezeshkian | 1% |
| Hassan Rouhani | 1% |
| Ahmad Vahidi | 1% |
| Mohammad-Bagher Ghalibaf | 1% |
| Muhammad Mirbaqiri | 0% |
| Sadegh Larijani | 0% |
| Hassan Shariatmadari | 0% |
| Maryam Rajavi | 0% |
| Massoud Rajavi | 0% |
| Seyed Hossein Mousavian | 0% |
| Reza Pirzadeh | 0% |
| Navid Shomali | 0% |
| Mustafa Hijri | 0% |
| Ali Motahari | 0% |
| Gholam-Ali Haddad-Adel | 0% |
| Mostafa Pourmohammadi | 0% |
| Sadegh Mahsouli | 0% |
| Saeed Jalili | 0% |
| Mahmoud Ahmadinejad | 0% |
| Mohammad Khatami | 0% |
| Other | 0% |
| Mohammad Pakpour | 0% |
| Ali Larijani | 0% |
| Abbas Araghchi | 0% |
| Mohsen Araki | 0% |
| Nasir Hosseini | 0% |
| Ahmad Hosseini Khorasani | 0% |
| Ali Asghar Hejazi | 0% |
| o | 0% |
| p | 0% |
| q | 0% |
| r | 0% |
| s | 0% |
| t | 0% |
| u | 0% |
| v | 0% |
| w | 0% |
| x | 0% |
| y | 0% |
| z | 0% |
| aa | 0% |
| ab | 0% |
| ac | 0% |
| ad | 0% |
| ae | 0% |
| af | 0% |
| ag | 0% |
| ah | 0% |
| ai | 0% |
| aj | 0% |
| ak | 0% |
| al | 0% |
| am | 0% |
| an | 0% |
| ao | 0% |
| ap | 0% |
| aq | 0% |
| ar | 0% |
| as | 0% |
| at | 0% |
| au | 0% |
| av | 0% |
| aw | 0% |
| ax | 0% |
| ay | 0% |
| az | 0% |
| ba | 0% |
| bb | 0% |
| bc | 0% |
| bd | 0% |
| be | 0% |
| bf | 0% |
| bg | 0% |
| bh | 0% |
| bi | 0% |
| bj | 0% |
| bk | 0% |
| bl | 0% |
| bm | 0% |
| bn | 0% |
| bo | 0% |
| bp | 0% |
| bq | 0% |
| br | 0% |
| bs | 0% |
| bt | 0% |
| bu | 0% |
| bv | 0% |
| bw | 0% |
| bx | 0% |
| by | 0% |
| bz | 0% |
| ca | 0% |
| cb | 0% |
| cc | 0% |
| cd | 0% |
| ce | 0% |
| cf | 0% |
| cg | 0% |
| ch | 0% |
| ci | 0% |
| cj | 0% |
| ck | 0% |
| cl | 0% |
| cm | 0% |
| cn | 0% |
| co | 0% |
| cp | 0% |
| cq | 0% |
| cr | 0% |
| cs | 0% |
| ct | 0% |
| cu | 0% |
| cv | 0% |
| cw | 0% |
| cx | 0% |
| cy | 0% |
| cz | 0% |
Market context
The question centres on whether Iran's supreme leader or president will remain in de facto control of state power through the end of 2026. Currently, Ayatollah Khamenei holds the supreme leadership position whilst Masoud Pezeshkian serves as president; the market resolves based on whoever exercises primary governing authority over armed forces, national institutions, and core executive decision-making on 31 December 2026, regardless of formal title or international recognition.
Historical precedent suggests leadership transitions in Iran occur through either constitutional succession or sudden incapacity rather than rapid institutional collapse. Khamenei has held the supreme leadership since 1989, surviving multiple health concerns and regional crises without formal succession mechanisms triggering. The 1989 transition from Khomeini involved a constitutional assembly process spanning months. Pezeshkian's election in 2024 followed Raisi's helicopter crash, demonstrating the system's capacity to absorb presidential-level shocks whilst preserving the broader power structure. An 8% implied probability reflects the base rate of major leadership change within a two-year window for a 85-year-old leader, offset by Iran's institutional resilience and absence of credible succession triggers currently visible.
Traders should monitor Khamenei's public appearances and health disclosures, which Iranian state media typically manages carefully. Regional escalation—particularly involving direct confrontation with Israel or the United States—could accelerate institutional stress, though Iran's leadership has historically consolidated rather than fractured under external pressure. Constitutional amendments or formal succession announcements would represent material signals. The market's 8% probability sits notably below comparable long-dated political-continuity contracts for other regional leaders, suggesting the crowd weights institutional stability and Pezeshkian's recent consolidation of presidential authority.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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
- 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 Best Prediction Markets UK. 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.
- 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 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.
Trade Iran leader end of 2026? on Best Prediction Markets UK
Live order book, 0% fees, USDC settlement in seconds.
Open live market →