How did Trump’s unilateral ceasefire announcement interact with actual geopolitical realities on the ground, particularly regarding Iran and U.S. allies?

Trump’s announcement of an indefinite pause in hostilities was immediately tested by gunfire attacks on container ships in the Strait of Hormuz, and it was unclear whether the ceasefire would be backed by U.S. ally Israel or Iran—which had already rejected a second round of negotiations—while Trump simultaneously stated he would continue the U.S. Navy’s blockade of Iran’s ports and shores.

Stocks Rise, Oil Jittery as Proposed Trump-Iran Ceasefire Tested

Q: What immediate market reactions followed reports of gunfire attacks on container ships in the Strait of Hormuz, despite Trump's announced Iran ceasefire extension?

U.S. stock futures rose—S&P futures up 0.5% and Nasdaq futures up 0.7%—while oil prices edged up, with Brent crude rising 73 cents (0.7%) to $99.15 a barrel and West Texas Intermediate up 59 cents (0.7%) to $90.20, after at least three container ships were hit by gunfire in the Strait of Hormuz; the dollar wavered, with the dollar index at 98.33, down 1.5% in April after a 2.3% March gain, and bond yields barely moved as investors waited for clearer signs on Middle East tensions.

Apr 21, 2026

U.S. stock futures rose while oil prices edged up after gunfire attacks on container ships in the Strait of Hormuz tested President Trump's proposed Iran ceasefire. Investors worry elevated energy prices could accelerate inflation despite equity rebounds.

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