Strait of Hormuz Open: Oil Prices Crash, Dow Soars 1,005 Points to Record

# Strait of Hormuz Open: Oil Prices Crash, Dow Soars 1,005 Points to Record

> **Quick answer:** Iran declared the Strait of Hormuz "completely open" for commercial vessels on April 17, 2026, triggering a historic market surge. The Dow Jones Industrial Average jumped 1,005 points (+2.1%), the S&P 500 crossed 7,100 for the first time in history, and oil prices plunged more than 11%. GasBuddy's Patrick De Haan forecasts gas prices could fall from $4.16 to $3.65–$3.85 per gallon within days. Here is what happened, what the numbers mean, and what comes next for your wallet.

The Strait of Hormuz open announcement hit markets like a defibrillator on April 17, 2026. In a single morning, the S&P 500 notched a new all-time high above 7,100, oil prices recorded their steepest single-day drop since the Iran war began in late February, and the Dow Jones Industrial Average put up its biggest point gain in weeks. This is the market reaction to the Strait of Hormuz reopening — and it is one of the most consequential trading days of the year.

> **Disclaimer:** This article is for informational purposes only and does not constitute financial advice. Consult a qualified financial advisor for personal financial decisions.

## What Iran Said and Why It Matters for Oil Prices

Iranian Foreign Minister Seyed Abbas Araghchi issued the declaration in unambiguous terms: "In line with the ceasefire in Lebanon, the passage for all commercial vessels through Strait of Hormuz is declared completely open for the remaining period of ceasefire."