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

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Market context

The question hinges on whether any nation's military vessels will navigate the Strait of Hormuz—the world's most critical oil chokepoint, through which roughly one-fifth of global petroleum passes—between now and the end of June 2026. The strait's 21-nautical-mile width at its narrowest point makes it a natural flashpoint for naval activity, yet transits by foreign warships remain relatively constrained by regional politics and international law.

Historical precedent suggests the 4% implied probability reflects genuine rarity rather than impossibility. The United States Navy has conducted freedom-of-navigation operations through the strait, most notably in 2020 when the USS Nimitz and USS Dwight D. Eisenhower transited together, but such operations occur sporadically and often generate diplomatic friction with Iran. European navies have made occasional passages, typically as part of broader Middle East deployments, though these are infrequent enough that each transit becomes a notable geopolitical event. The strait's status as international waters theoretically permits transit, yet Iran's control of the northern shore and its history of harassing foreign vessels creates practical deterrence.

Traders should monitor announcements from the US Fifth Fleet, which oversees the region, and track escalations in Iran-related sanctions or regional tensions that might prompt a show of force. Recent reporting from Reuters and the Financial Times has focused on shipping disruptions from Houthi attacks rather than major-power naval manoeuvres, suggesting the market's low probability reflects current regional stability rather than structural barriers to transit. Any significant deterioration in US-Iran relations or a major incident involving commercial shipping could shift the calculus sharply.

Methodology

This page tracks Which countries will send warships through the Strait of Hormuz by June 30? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. Election Predictions UK routes every trade through to Polymarket — at 0% fees.

Resolution & payout

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FAQ

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