Farsi, Hengam, Hormuz or Kharg Island no longer under Iranian control by 2026?

Platform comparison

Market context

Iran still appears to exercise primary control over all four islands in question, which is why the contract sits at a low **2%** implied chance of a change in control. Farsi is widely described as an Iranian island hosting an IRGC Navy base, while treaty records recognise Iranian sovereignty over it; the same broad picture applies to Hormuz and Kharg, both of which remain within Iran’s administrative and security perimeter. [1][2][14]

That makes the market closer to a geopolitical tail-risk trade than a conventional sovereignty bet. The nearest historical analogue is not a negotiated transfer, but the 2016 Farsi Island episode, when US sailors were briefly detained after entering Iranian waters; even that did not alter control, underscoring how a temporary military incident falls far short of this market’s resolution standard. By contrast, a true outcome would require another state or internationally backed authority to establish actual control, not merely issue threats or stage raids. [10][15][12]

For traders, the catalysts are limited and mostly binary: an overt amphibious seizure, a regime collapse on one island, or a formal transfer backed by enforceable occupation would matter; routine naval manoeuvres, missile drills, sanctions headlines or rhetoric over the Strait of Hormuz would not. That is why sportsbook-style pricing, where available, typically stays near event risk rather than headline risk, and why this prediction market is likely to keep trading at a steep discount to any dramatic Gulf news unless there is an unmistakable change on the ground. [12][16]

Sources: 1 · 2 · 3 · 4 · 5

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 Kalshi vs Polymarket. 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 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.

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.