The U.S. announced plans to block the Strait of Hormuz, escalating tensions with Iran. The U.S. invasion of Iran market sits at 0% YES following the announcement.

Market reaction

The Iran’s military action against other countries by April 30 market holds at 100% YES, while the invasion market has seen renewed interest but odds remain near zero. A decision to block Hormuz could raise the likelihood of both U.S. and Iranian military actions.

Why it matters

The probability of Iran striking Israel, Saudi Arabia, and the UAE by April 30 remains at 100% YES. Traders are pricing in aggressive Iranian retaliation to maintain control over the strait. Trading volume across related markets is $1,046 in USDC over the last 24 hours. Order book depth shows a $427 investment could move prices by 5 percentage points, meaning these markets are thin enough for sharp swings on small capital.

What to watch

A YES share in the invasion market would pay out substantially if a full-scale invasion occurred, but the market prices that as extremely unlikely. The blocking threat is a clear escalation, though it does not necessarily lead to invasion; diplomatic off-ramps could emerge quickly.

Watch for statements from CENTCOM and the White House. Any shifts in operational language or announcements of diplomatic breakthroughs could move these markets fast.

API access

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