Kharg Island no longer under Iranian control by 2027?

Platform comparison

Market context

Kharg Island remains under Iranian control, and the bar for this market is much higher than a strike, blockade, or temporary disruption. The resolution rules require Iran to lose primary governmental or military control to another state, occupying force, or internationally backed authority, so even serious damage to export infrastructure would not be enough on its own. That is why a 0% crowd-implied probability is directionally consistent with the underlying geography and force requirements, even if wartime headlines have made the island a visible target. Reuters reported on 14 March that Kharg was struck by the US but remained a key hub for Iranian oil exports, underscoring the difference between kinetic pressure and actual loss of control.[19]

Historically, Kharg is read as a strategic economic choke point rather than an easily transferable territory. Reuters, the BBC and other recent explainers describe it as handling roughly 90% of Iran’s crude exports, with deep-water jetties and storage built up over decades to serve the mainland network.[1][16][17] Comparable cases in the Gulf suggest that even sustained bombardment tends to degrade capacity before it changes sovereignty or command arrangements. That is relevant for comparing this contract with prediction-market pricing: sportsbook-style odds, where available, would normally be even less likely to move off a near-zero line unless there were credible reporting of invasion, occupation, or a recognised transfer of authority. On current information, analyst consensus appears to sit close to the market’s zero pricing rather than implying any meaningful upside.

For traders, the main catalysts are not routine military exchanges but any announced operation aimed at holding the island, signs of amphibious or airborne deployment, or external recognition of a new administrative authority. Watch for official statements from Tehran, US or allied operational notices, and shipping disruption evidence around the island’s terminals, because those would be the first indicators of a real control shift rather than a temporary outage. Reuters’ March reporting and subsequent March–April coverage framed Kharg as an export hub under pressure, but still functioning, which matters because this market only resolves Yes if control changes before the 31 March 2026 deadline.[19][18]

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.

UK Frequently Asked Questions

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.

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.

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.