The Dow Jones Industrial Average gained 1,644 points [1] on April 12, 2026, following the full reopening of the Strait of Hormuz [1].

This surge represents a critical shift in investor sentiment regarding geopolitical stability in the Middle East. Because the Strait of Hormuz is a primary artery for global oil shipments, its closure posed a significant threat to energy prices and international trade.

Market analysts said the rally was triggered by the announcement that the waterway was "completely open" [2]. This development coincided with growing optimism regarding progress in peace talks between the U.S. and Iran [2]. The combination of restored maritime access and diplomatic movement led to a sharp decline in oil prices, which dropped approximately four percent [2].

According to the MSN Markets Desk, the point gain of 1,644 [1] was the biggest one-day increase for the Dow Jones Industrial Average in over a decade [1]. While some reports estimated the gain at around 1,600 points [2], the higher-precision figure of 1,644 was confirmed by MSN [1].

Equities rallied across multiple sectors as the risk of a prolonged energy crisis diminished. Investors cheered the news that the region was moving toward a period of decreased tension, which traditionally encourages risk-taking in the stock market [2]. The rally reflected a broader trend of global markets reacting positively to the resolution of the blockade, a move that stabilized expectations for inflation and transport costs.

Trading activity remained high throughout the session on Friday, April 12, 2026 [1]. The market close saw a wide range of stocks climbing, including Tesla and Palantir, as the macroeconomic outlook improved with the easing of tensions in the Persian Gulf [1].

The Dow Jones Industrial Average surged 1,644 points, its biggest one‑day gain in over a decade.

The rapid recovery of the Dow Jones highlights the extreme sensitivity of global equity markets to energy chokepoints. By linking the market surge to both the physical reopening of the Strait of Hormuz and the diplomatic progress between the U.S. and Iran, the event demonstrates how geopolitical stability acts as a primary catalyst for investor confidence and the stabilization of global oil prices.