Dow Surges 900 Points as Iran Opens Hormuz

U.S. equity markets surged Monday, with the Dow Jones Industrial Average climbing roughly 900 points, as Iran stated the Strait of Hormuz remains "completely open," easing fears of a supply disruption that had rattled energy and financial markets. The S&P 500 and Nasdaq Composite both posted significant gains alongside the Dow, reflecting broad-based relief buying across sectors. The Strait of Hormuz is the world's most critical oil transit chokepoint, through which approximately 20% of global petroleum supply flows daily. Any credible threat to that passage typically transmits rapidly into crude prices, inflation expectations, and risk asset valuations, which explains the scale of Monday's reversal. Iran's public assurance that the waterway is unimpeded removed a near-term tail risk that markets had priced in during recent sessions. Investors will now watch whether Iran's statement holds against any escalatory developments in the region, and whether crude oil futures, which had spiked on supply disruption concerns, fully retreat from recent elevated levels.