Dow Surges 555 Points as Iran Opens Hormuz

U.S. equity markets rallied sharply on reports that Iran signaled an opening of the Strait of Hormuz, with the Dow Jones Industrial Average climbing 555.37 points, or 1.14%, while the S&P 500 gained over 0.70% and the Nasdaq rose 0.99%. The moves reflect how directly geopolitical risk in the Persian Gulf transmits into equity sentiment, given the Strait's role as a critical chokepoint for roughly a fifth of global oil trade. When Hormuz closure risk recedes, energy supply fears ease, which tends to compress oil prices and reduce the input-cost pressure that had been weighing on corporate margins and consumer spending assumptions. Investors will now watch whether Iran's posture holds and how crude benchmarks respond in subsequent sessions, as any reversal could quickly unwind today's risk-on positioning across energy-exposed equities and broader index futures.