Brent crude, the international standard, fell 9.1% to settle at $90.38 per barrel. To be sure, it remains above its $70 price from before the war, indicating some caution is still embedded in financial markets.
Companies with big fuel bills soared to some of Wall Street’s biggest gains following the easing of oil prices.
Housing and auto-related companies likewise got some relief from the drop in oil prices.
A strong start to the earnings reporting season for big U.S. companies has also helped support the U.S. stock market, and more financial companies joined the list delivering bigger profits for the start of 2026 than analysts expected.
All told, the S&P 500 rose 84.78 points to 7,126.06. The Dow Jones Industrial Average jumped 868.71 to 49,447.43, and the Nasdaq composite climbed 365.78 to 24,468.48.
In stock markets abroad, stock indexes leaped in Europe following Iran’s announcement about the Strait of Hormuz. France’s CAC 40 jumped 2%, and Germany’s DAX returned 2.3%.
In Asia, where trading finished for the day before the announcement, indexes were weaker. Japan’s Nikkei 225 lost 1.8%, and Hong Kong’s Hang Seng fell 0.9% for two of the bigger losses.
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AP Business Writers Chan Ho-him and Matt Ott contributed to this report.
