US Navy disables Iranian ship breaching blockade in Gulf of Oman

The US Navy disabled an Iranian ship after it attempted to breach a naval blockade in the Gulf of Oman. Trump’s announcement of a ceasefire by April 21 sits at 7.5% YES, down sharply from 38% yesterday.

The odds of Trump announcing a ceasefire by April 21 dropped by over 22 points in 24 hours. The US blockade of the Strait of Hormuz being lifted by May 31 is at 86% YES, down from 90%.

Disabling fire against an Iranian vessel during blockade enforcement is a direct escalation in US-Iran naval confrontations and makes an immediate diplomatic resolution less likely. The April 21 ceasefire market has a face value of $462,073 traded daily but only $115,188 in actual USDC, which points to speculative interest rather than firm conviction. It takes $8,090 to move the price 5 points, a moderately liquid market.

For traders, the direction has shifted from rapid de-escalation toward prolonged conflict. At 15.5¢, a YES share pays $1 if Trump announces a ceasefire by April 21, a 6.45x return. Buying YES here requires confidence in a diplomatic breakthrough within three days.

Watch for Pentagon statements and Trump’s communications. Any signal of a softened stance or diplomatic engagement could move these markets fast.

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