Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
35% | 65% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
35% | 65% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 31 | 35% |
| December 31 | 15% |
| September 30 | 8% |
| March 31 | 0% |
| March 13 | 0% |
| April 30 | 0% |
| May 31 | 0% |
| June 30 | 0% |
Market context
The Supreme Leader of Iran, Mojtaba Khamenei, is reportedly unconscious and critically ill in Qom, incapacitated since surviving a US-Israeli strike, with intelligence sources confirming he cannot participate in regime decision-making[1]. Tehran has issued no official statement, yet opposition-linked reports indicate a military council of IRGC officers has assumed de facto control, effectively preventing Khamenei from accessing state developments[1].
Historically, leadership vacuums in authoritarian systems often resolve through internal power shifts rather than formal announcements, mirroring how Ali Khamenei’s death triggered Mojtaba’s rapid succession despite initial voting complexities[2][3]. The current 0% crowd-implied probability for leadership change ignores precedents where incapacitation alone constituted a functional removal, as seen when Ahmad Vahidi was widely considered Iran’s real ruler during prior speculation periods[5].
Traders should monitor official announcements from the Assembly of Experts, IRGC council declarations, and any shifts in Khamenei’s medical status, as these are primary catalysts for resolution[1]. Recent intelligence memos shared with Gulf allies explicitly state Khamenei is unable to be involved in decision-making, a condition that could trigger a "Yes" resolution if formally recognised[1]. Programmatic approaches to this market would weight real-time intelligence feeds over official state media, conditional orders triggering on IRGC council activity rather than waiting for resignation confirmations.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.
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 Polymarket Review UK. 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.
- 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.
Trade Iran leadership change by 2026? on Polymarket Review UK
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