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

Platform comparison

Market context

The question centres on whether any nation will deploy military vessels through the Strait of Hormuz—one of the world's most strategically sensitive chokepoints—between now and the end of July 2026. The strait, which separates Iran from Oman and connects the Persian Gulf to the Gulf of Oman, handles roughly one-third of global seaborne traded oil. Warship transits through it remain relatively rare and politically charged, particularly given Iran's stated opposition to foreign military presence in the region and its periodic threats to close the waterway.

Historical precedent suggests such transits occur episodically rather than routinely. The United States Navy has conducted occasional freedom-of-navigation operations through the strait, most notably in 2020 and 2021, though these remain exceptional rather than scheduled. British, French, and other allied naval vessels have similarly passed through, but typically in response to specific escalations or crises rather than as standing policy. The 4% implied probability reflects the baseline expectation that no major geopolitical rupture will trigger a deliberate warship deployment through contested waters during the settlement window.

Traders should monitor Iranian nuclear negotiations and any shifts in US or allied posture toward Tehran, as these remain the primary catalysts for military repositioning in the Gulf. Recent reporting from Reuters and regional defence outlets indicates no imminent scheduled transits, though any significant escalation in Iran-Israel tensions, fresh sanctions regimes, or breakdown in diplomatic channels could alter calculations rapidly. The market's low probability assumes the status quo holds; material changes to US policy toward Iran or a major regional security incident would be the principal drivers of resolution toward "Yes."

Methodology

This page tracks Which countries will send warships through the Strait of Hormuz by July 31? 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. For users geo-blocked from Polymarket directly, brokers like Election Predictions UK provide a 0%-fee route into the same order book.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

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Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

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Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

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High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

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It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.