Iran calls US naval blockade an “act of war,” demands forceful response

Iran has labeled the U.S. naval blockade as an “act of war,” demanding a forceful response. The probability of a U.S.-Iran ceasefire by April 30 sits at 13.5% YES, down from 32% just 24 hours ago.

Market reaction

Ceasefire odds dropped sharply as military tensions increased. With only nine days left before the April 30 deadline, traders appear to be pricing in continued hostilities. The US forces entering Iran market lacks current odds data, but Iran’s escalatory language could push up the implied probability of an eventual ground conflict.

Why it matters

Daily face value on the ceasefire market is $213,788, with actual USDC traded at $68,607. The market is reacting to real volume, not just rhetoric. Order book depth shows it takes $4,074 to move the market five percentage points, a moderately liquid environment where large trades can still move prices.

What to watch

Iran’s declaration may have a lasting effect on pricing. The source is tier-3, so treat it with skepticism, but the market response suggests traders are taking it seriously. A YES share at 13.5¢ pays $1 if a ceasefire is declared, a 7.41x return. For that bet to pay off, you’d need to believe diplomatic talks will resume within nine days, which looks increasingly unlikely given current tensions.

Watch for statements from CENTCOM or Congress. A Congressional war powers move or a shift in rhetoric from the Pentagon could change the trajectory of this market quickly.

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