US-Iran tensions escalate, stocks fall
Analysis based on 14 articles · First reported Jul 13, 2026 · Last updated Jul 14, 2026
The escalation in US-Iran tensions has dampened risk appetite, leading to a broad sell-off in tech stocks while boosting energy shares due to higher oil prices. The market is now pricing in a potential rate hike by the United States — Federal Reserve as inflation concerns mount from rising energy costs.
On July 13, 2026, President Donald Trump announced the reinstatement of a blockade on Iranian ports following heavy airstrikes exchanged between the United States and Iran over the weekend. This escalation in US-Iran hostilities led to a surge in crude oil prices (up 9.4%) due to concerns over restricted traffic through the Strait of Hormuz. US stock markets declined, with the tech-heavy Nasdaq-100 leading losses, while energy stocks gained. The Philadelphia SE Semiconductor Index fell sharply, with constituents Western Digital — Sandisk, Marvell Technology, Intel, and Western Digital dropping between 6.1% and 12.6%. US-listed shares of SK Hynix sank 9.3% after its Nasdaq-100 debut. Investors are now focused on upcoming United States — Federal Reserve Chair Kevin Warsh's congressional testimony, inflation data (CPI and PPI), retail sales, and second-quarter earnings from major banks including Bank of America, Citigroup, Goldman Sachs, JPMorgan Chase, and Wells Fargo. Markets are pricing in at least one 25-basis-point rate hike by year-end, according to London Stock Exchange Group data.
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