Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
5% | 95% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
5% | 95% | 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 |
|---|---|
| August 31 | 5% |
| July 31 | 1% |
Market context
Farsi Island is presently treated in international records as Iranian territory, with the 1971 agreement recognising Iran’s sovereignty over the island. That makes the market a straight sovereignty-and-control question rather than a simple military-risk bet: for a YES settlement, Iran would need to lose primary governmental or military control, and another state or internationally backed authority would need to establish durable control before the deadline.[1]
At 1% implied probability, the contract is priced as an extreme tail event, and that is consistent with the absence of any public precedent for a clean transfer of control over the island. Comparable cases in the Gulf tend to move through prolonged occupation, formal annexation, or regime collapse rather than through short-lived raids or disrupted access, which the market rules explicitly exclude. In that sense, the current line is closer to an odds-on assumption of continuity than a forecast of near-term disruption.[1]
For traders, the key catalysts are not routine naval activity but any sustained change in command structure, legal status, or external backing: an Iranian withdrawal, a declared administration by another authority, or a broader conflict that alters control of the island and its surrounding waters. In the absence of such developments, analyst consensus would normally align with the market’s low YES pricing, while the main cross-platform watchpoint is whether sportsbook-style prices remain anchored near a one-in-a-hundred tail or drift only if regional tensions escalate into actual territorial loss.[1]
Sources: 1
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 Best Prediction Markets 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 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.
- 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.
Trade Farsi Island no longer under Iranian control by 2026? on Best Prediction Markets UK
Live order book, 0% fees, USDC settlement in seconds.
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