Which countries will send warships through the Strait of Hormuz by July 31?

Platform comparison

Market context

The Strait of Hormuz, a 54-kilometre chokepoint between Iran and Oman, handles roughly one-third of global seaborne oil trade. Warship transits through these waters remain rare outside routine US Navy operations and occasional allied passages. The question of whether additional nations will send military vessels through by end-July 2026 hinges on whether geopolitical friction in the region escalates beyond current baseline tensions or whether existing naval powers expand their presence in response to Iranian activity.

Historical precedent suggests the 4% probability reflects genuine rarity. Since 2019, when the US withdrew from the nuclear deal, only established maritime powers—primarily the United States, occasionally the UK, and French task forces—have conducted publicised warship transits. China and India have avoided direct military presence in the strait despite regional interests. The 2022 British carrier strike group deployment and subsequent French frigate operations demonstrated that Western navies will transit when political will exists, but these remain episodic rather than routine. No non-Western military has initiated independent warship operations through the strait in recent years.

Traders should monitor Iranian naval incidents, US sanctions escalation announcements, and any formal declarations of freedom-of-navigation operations by secondary powers. Recent reporting from Reuters and naval tracking services indicates no scheduled non-routine transits are publicly announced for the first half of 2026. Programmatic monitoring of official naval statements from India, Japan, and South Korea would flag policy shifts; similarly, tracking Iranian Revolutionary Guard activity and US Fifth Fleet posture changes would signal whether conditions favour expanded transit activity. The low probability reflects both historical patterns and the absence of current catalysts pushing new entrants toward the strait.

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 Review UK, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.

Do I need to KYC for this market?

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

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.