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

Platform comparison

Market context

The event would require Iran to lose primary governmental or military control of at least one of Farsi, Hengam, Hormuz or Kharg Island and for another authority to replace it, which is a much higher bar than a raid, blockade scare, or brief military presence. On the current 2% crowd-implied price, the market is effectively saying a control change by late September is possible but highly unlikely, and that view appears consistent with the broader strategic picture: these islands sit inside Iran’s existing security architecture, with Farsi and Hormuz particularly tied to IRGC or wider Gulf chokepoint control, while Kharg remains central to Iran’s oil export system.[1][10][12][14]

Historical parallels help explain why the probability stays low. The nearest comparable episode is the 2016 seizure of US boats near Farsi, which showed how quickly a local incident can escalate, but also how quickly it can end without any territorial transfer.[14][15] Farsi itself is recognised as Iranian territory under a 1968 sovereignty agreement, and the same general logic applies to the other named islands: absent a sustained occupation, transfer, or internationally backed replacement authority, the market’s resolution rules point firmly to No.[2][13] In practice, that means traders should treat short-lived clashes, offshore naval patrols, or disputed claims as noise rather than control change.

The main catalysts to watch are a major Gulf military escalation, an explicit transfer or ceasefire term covering one of the islands, or evidence that an outside force has established durable administration on the ground. For comparison, the contract’s 2% sits well below the kind of odds typically associated with severe regional shocks, while the absence of any confirmed on-island takeover or negotiated handover keeps analyst-style consensus close to the crowd view rather than implying a hidden higher-probability tail risk.[12] Traders should also watch shipping-security developments around the Strait of Hormuz and any official Iranian, US, or Gulf-state statements that move beyond deterrence language into claims of actual territorial control.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Farsi, Hengam, Hormuz or Kharg Island no longer under Iranian control by 2026? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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.

UK Frequently Asked Questions

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

What are the best prediction markets for UK traders in 2026?

For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.