Iran Fires on Ships Hours After Trump Extends Ceasefire

Three vessels hit in the Strait of Hormuz on the same day Trump removed the ceasefire deadline, exposing the gap between formal peace and continued conflict.

Three commercial vessels came under Iranian fire in the Strait of Hormuz on Tuesday, hours after President Trump announced an indefinite extension to the US-Iran ceasefire. The attacks complicate Washington's claim that its coercive pressure campaign is working and expose the gulf between the formal cessation of hostilities and the reality on the water.

The Iranian Revolutionary Guard Corps targeted the vessels off the Omani coast in the early hours of April 22, according to reports from Al Jazeera and NPR. Tehran separately seized two additional commercial ships in the strait the same day, per CNBC, in what shipping analysts described as enforcement of Iran's disputed territorial claims rather than an act of open war.

Trump's ceasefire extension, announced late on April 21, removed the rolling deadline structure that had governed the pause since early April. Bloomberg reported the move came as peace talks in Islamabad collapsed without progress, leaving the administration with no diplomatic track and no appetite to resume air operations. The extension was framed as a gesture of good faith. The ship attacks suggest Tehran read it differently.

Prediction markets have priced this contradiction with unusual precision. On Polymarket, the probability that the Iran-Israel/US conflict ends by May 15 sits at 99.95% as of April 22, a near-certainty that the formal ceasefire holds through the next three weeks. But permanent peace by the same date trades at just 0.6%, on $5.3 million in 24-hour volume. The market is not confused. It is saying the war ends on paper and continues everywhere else.

The distribution underneath tells a starker story. Traders price the Strait of Hormuz returning to normal shipping by April 30 at 8.5%, meaning the blockade is expected to persist well into May regardless of the ceasefire's status. A Council on Foreign Relations analysis published April 20 floated an "Open for Open" framework: Iran reopens Hormuz, the US lifts its naval blockade. Markets are pricing that proposal as functionally dead.

Meanwhile, the probability of a full US invasion of Iran before the end of 2027 holds at 30.5%, on $2.1 million in daily volume. That figure has barely moved since the ceasefire began. Traders see a one-in-three chance of ground escalation even as formal hostilities remain paused. The New York Times reported on April 21 that Tehran and Washington were sending "mixed signals" about the prospect of renewed talks, a diplomatic euphemism for stalemate.

The pattern is not new, but the data is now conclusive. The ceasefire is not a bridge to peace. It is a holding structure that freezes the conflict in its current shape: US naval blockade intact, Iranian territorial enforcement active, Hormuz closed to normal traffic, invasion odds stable. Vox described the situation on April 21 as a conflict that is "not ending" but "becoming something new." The prediction markets arrived at the same conclusion weeks earlier and have not revised it.

For energy-exposed investors and shipping operators, the signal is unambiguous. The ceasefire removes the risk of sudden escalation but entrenches the risk of prolonged disruption. Hormuz will not reopen on a diplomatic handshake. The next date to watch is the May 15 conflict-end resolution, not because it will change the situation, but because it will confirm what the market already believes: the war is over, and nothing has been resolved.