Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative UK) Pick polygram.ink (preferred broker) |
4% | 96% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
4% | 96% | 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 | 4% |
| July 31 | 1% |
Market context
Polymarket has this contract at **1% YES**, so the market is treating a loss of Iranian control over Farsi Island by 31 August 2026 as an extreme tail event. On Polymarket, buyers pay in **USDC** on **Polygon**, and the position settles through conditional tokens against the stated resolution rules, so the key question is not whether the island matters strategically, but whether control actually transfers in a way that meets the contract’s high bar.
Farsi Island sits in the Persian Gulf and is described as Iran’s last island before the maritime boundary with Saudi Arabia, with active oil facilities nearby.[1] That geography helps explain why the price is so low: comparable cases of territorial control changing hands in the Gulf are rare, and markets usually need a clear military occupation, internationally backed transfer, or sustained administrative takeover before pricing a real chance of “Yes”. Temporary strikes, brief landings, or offshore pressure would not be enough under this rule set.[2]
For traders, the relevant catalysts are any credible reports of an announced evacuation, an interstate escalation that leads to a ground seizure, or a formal transfer linked to a broader conflict settlement. The main watchpoints are official statements from Iran, Saudi Arabia, or US-aligned naval and regional forces, plus any shipping or energy-security developments around the Gulf. In the absence of a concrete occupation or recognised transfer mechanism, the contract is structurally set up to drift towards “No” rather than reprice on rumours alone.[2]
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 Alternative 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 Alternative 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Alternative UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Farsi Island no longer under Iranian control by 2026? on Polymarket Alternative UK
Live order book, 0% fees, USDC settlement in seconds.
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