Stock Market Today: Dow, S&P 500 Close Mixed As Critical Iran Deadline Nears (Live Coverage)

U.S. stock markets closed mixed on April 2026 as investors reacted to escalating geopolitical tensions ahead of a critical deadline set by former President Trump regarding Iran’s actions in the Strait of Hormuz. The Dow Jones Industrial Average declined, reflecting heightened uncertainty over potential military or economic confrontations in the vital oil shipping route, which handles 20% of global crude supplies. Apple stock fell amid broader market volatility, as tech equities faced pressure from risk-averse traders shifting assets ahead of the geopolitical showdown and its possible economic fallout. The S&P 500 showed resilience with a near-flat close, suggesting divided investor sentiment—some sectors hedged against conflict risks while others bet on diplomatic de-escalation before the deadline. Analysts warn prolonged Strait of Hormuz disruptions could trigger oil price spikes, inflationary pressures, and broader market instability, depending on Iran’s response and global powers’ next moves.