Trump stated he is ordering the US Navy to blockade the Strait of Hormuz. The countries conducting military action against Iran by April 30 market sits at 3.6% YES across sub-markets, showing a modest uptick following the announcement.

Market reaction

Trump’s move touches several Polymarket contracts. The U.S. invasion of Iran before 2027 market is being closely tracked. The Trump’s agreement to Iranian demands in April market leans bearish, since Trump’s military posture lowers the probability of concessions. The recent breakdown of ceasefire talks reinforces that direction.

Why it matters

The “countries conducting military action” market has $261 in actual USDC daily volume, making it thin but reactive. A $427 trade can swing it 5 points. Trump’s declaration is headline risk, but without concrete troop movements, it remains speculative noise. Traders appear cautious about pricing in allied military action without firmer signals.

What to watch

At 4% YES, buying in the “countries conducting military action” market pays $1 if resolved, a 25x return. Whether other countries join depends on further diplomatic failures or military commitments from allies. UK or Saudi statements in response to Trump’s actions would be the next catalyst. Any confirmation of military coordination from CENTCOM or allied defense ministries, particularly linked to naval maneuvers or airstrikes, could move these contracts fast.

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