Iran has firmly rejected President Donald Trump's assertion that the country would sign a deal with the United States on Sunday, leaving the Strait of Hormuz closed and shipping routes exposed.

The denial comes after Trump posted on Truth Social over the weekend that a potential agreement would include the immediate opening of the strait to all commercial shipping.

Tehran's outright dismissal of the claim confirms that the chokepoint remains under Iranian control, sustaining the disruption to global energy transit.

With no diplomatic breakthrough in sight, markets continue to price in elevated shipping insurance premiums and potential supply tightness in the coming weeks.

Traders are monitoring for any further escalations or alternative routing shifts that could impact Brent crude and natural gas futures.