Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
25% | 75% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
25% | 75% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| June 30, 2027 | 25% |
| December 31 | 19% |
| November 30 | 14% |
| October 31 | 11% |
| September 30 | 7% |
| August 31 | 3% |
| August 22 | 1% |
| July 31 | 0% |
| August 15 | 0% |
| March 13 | 0% |
| March 31 | 0% |
| April 30 | 0% |
| May 31 | 0% |
| June 30 | 0% |
Market context
Mojtaba Khamenei losing effective control in Iran would almost certainly require a visible break in the succession structure, not just political speculation. The market’s 8% crowd price is low, but it still sits above the near-term regime-change ranges found in some recent forecasting work, which put forced change in Iran at 4-9% over one year and below 3% over one month.[2] By contrast, Polymarket’s own Iran suite has recently shown much higher numbers for some related timing contracts, illustrating how contract design and expiry can move the same story from a long-shot to a much less remote event.[6][10]
Historical comparisons are awkward because Iran rarely changes top authority through a clean, market-friendly sequence. The useful analogue is less a routine leadership contest than a crisis-driven transition, where the Assembly of Experts, the security services, and any public announcement all matter more than rumour.[1][9] That is why the exact wording of this contract matters on Polymarket: it resolves on Mojtaba Khamenei ceasing to be the de facto leader, while settlement on other venues may instead track “new supreme leader” or “out by year-end”, which can produce different odds even on the same underlying political risk.[15][16] Kalshi and Betfair also tend to quote contracts in different formats, with Kalshi usually showing American-style pricing in some interfaces and Betfair/Smarkets using decimal odds; after fees and KYC restrictions, the tradable edge can differ from the headline probability.
The main catalysts are formal statements from the Assembly of Experts, state media reports of removal or incapacitation, any detention signal, and signs of a rapid elite bargain over succession.[9][11] A recent Reuters-style news cycle around Iran has repeatedly highlighted how quickly leadership rumours can reprice these contracts, but traders should separate confirmed institutional announcements from commentary or social-media speculation.[13][14] For comparison-platform readers, Polymarket’s price is the cleanest implied probability; Kalshi’s contract value depends more directly on bid-ask spreads and exchange fees, while Betfair and Smarkets can be easier to cross-check in decimal terms but may be less accessible depending on KYC and jurisdiction.
Methodology
We read Iran leadership change by 2026? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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