USO is trading at $152.82, up 3.03% after Trump rejected Iran’s proposal to reopen the Strait of Hormuz, renewing concerns about delayed oil flows and supply disruption. - Brent rose more than 3% on Monday, Reuters reported. - The move reverses Friday’s relief-driven decline, when optimism around Iran’s proposal weighed on crude; the geopolitical supply-risk premium is the clearest catalyst for USO’s gain.