US maintains blockade on Iranian ports, UK warship transit unlikely by 2026

US Central Command continues to monitor and patrol regional waters while maintaining a blockade on Iranian ports. The likelihood of UK warships transiting the Strait of Hormuz by April 30, 2026, is now at 10% YES, up from 8% yesterday.

Market reaction

Current trading shows $1,274 in USDC volume moving the market, with an order book depth requiring $581 to shift odds by 5 points. The largest recent price move was a 2-point increase at 11:31 AM. The April 30 market currently prices UK involvement at 10%.

Why it matters

The blockade began on April 13, 2026, after Pakistani-mediated ceasefire talks broke down. It has halted maritime traffic to and from Iranian ports, affecting 90% of Iran’s international sea trade. The US has committed over 10,000 troops and more than a dozen warships. The 2-point odds increase suggests traders see some probability of allied naval support, though the market remains heavily weighted toward NO. The sustained US military posture looks more like a long-term geopolitical commitment than a temporary show of force.

What to watch

For traders considering a YES bet at 10¢, the payout would be $1 if the UK sends warships through the Strait by April 30, a 10x return. That price implies the market needs concrete evidence of UK involvement or broader coalition building before the deadline. Any announcements from the UK Ministry of Defence, or confirmation of frigate or destroyer deployments, would move these odds sharply.

API CTA

Get prediction market intelligence as a structured API feed. Early access waitlist.