Which countries will send warships through the Strait of Hormuz by June 30?

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Market context

The Strait of Hormuz, a 54-kilometre chokepoint between Iran and Oman, sees roughly one-third of global seaborne oil transit annually. Whether additional nations deploy warships through this waterway by mid-2026 hinges on escalation patterns in the Gulf region and freedom-of-navigation postures adopted by major powers. Polymarket currently prices YES at 4%, reflecting trader assessment that the threshold for new warship transits remains high relative to baseline activity.

Historical precedent suggests the bar for "new" transits is meaningful. The United States Navy has maintained a persistent presence in the Strait for decades; France, the UK, and Australia have conducted periodic transits tied to coalition operations or bilateral arrangements. The 2019 tanker attacks and subsequent Houthi drone strikes prompted increased naval activity, yet the market's low probability reflects scepticism that 2026 will see materially different participation compared to established patterns. Traders appear to be pricing in continuity rather than expansion of the naval roster.

Catalysts to monitor include escalation in Yemen-based attacks on shipping, any formal Iranian restrictions on transit, and announcements of new multinational task forces. Recent statements from the US Department of Defense regarding Gulf deployments and any statements from the Iranian Revolutionary Guard Corps regarding Strait access would move pricing. Scheduled maintenance cycles, regional diplomatic incidents, or changes in oil price volatility could also trigger renewed naval positioning. The settlement window extends eighteen months, allowing time for geopolitical shifts to materialise, though the current 4% probability suggests traders view such shifts as unlikely within that frame.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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

Is this market available outside the US?

Polymarket Scam? is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Scam? triggers a quick verification flow that finishes in 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.