Iran War Fuels Paradoxical Rally in U.S. Equities

In late February 2026 United States and Israel struck Iran, closing the Strait of Hormuz and pushing Brent crude above $105 a barrel. Despite a 6 % rise in producer-price inflation, U.S. equities rebounded: Nasdaq up 11 % YTD and the S&P 500 posted a 13.8 % annual gain by mid-May.

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Seven S&P 500 constituents—Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia, Tesla—hold about 30 % of the index; Nvidia’s share rose 1,450 % over five years. TSMC and Intel gained 150 % and 142 % respectively. Brent sits near $105.44, a 50 % jump from pre-war levels. CPI hit 3.8 % in April, while producer-price inflation surged 6 % the same month.

The Guardian

The rally deepens a “K-shaped” economy: the top 10 % own 87.2 % of U.S. stocks, the bottom half only 1.1 %. Wealthier households keep spending on travel and premium services, sustaining corporate earnings, whereas lower-income consumers curb gas use. Rising oil prices and renewed inflation pressure the Federal Reserve’s rate-policy choices.

The Guardian

Trump said he was not motivated by Americans’ finances to end the war. The White House said Trump-Xi talks aimed at reopening Hormuz. Kevin Warsh described AI as the most productivity-enhancing wave and suggested rate cuts. Federal Reserve officials warned that jump in producer prices could make monetary easing difficult.

Reuters

Polls show a majority disapprove of Trump’s war handling, with 63 % blaming him for high gas prices. Economist Eswar Prasad warned that lax supervision that led to Silicon Valley Bank’s collapse could hide risks. Paul Kedrosky cautioned that the AI boom may end in a bust similar to the dot-com bubble.

The Guardian

Consumer-price inflation rose to 3.8 % in April, while producer-price inflation jumped 6 % the same month, leaving analysts split on the depth of price pressure. Forecasts for AI also diverge: some investors expect continued growth, while others, like Kedrosky, predict an imminent bust.

The Guardian

• “Donald Trump on Wednesday said he is “not even a little bit” motivated by Americans’ financial situation to end the war.” — Donald Trump, President of the United States

The Guardian

• “Investors now have a pretty clear view that if there is significant trouble in the financial system, the [US Federal Reserve] and the US government will step in and not let things get too deep into the hole,” — Eswar Prasad, Economist, Cornell University

The Guardian

• “We feel pretty confident that the floor on oil prices has risen.” — Christopher Hays, Portfolio Manager, TCW Group

Bloomberg

• “I believe the most important investment event during 2026 will not be who wins the mid-terms, whether AI blossoms or busts, middle east hostilities, trade protectionism, or concentrated stock market returns,” — Jim Paulsen, Former Chief Investment Strategist, The Leuthold Group

Business Insider

The Trump-Xi summit and any cease-fire will shape oil-price expectations and inflation trajectories. The pending Federal Reserve chair transition could shift the timing of rate cuts, while AI earnings from Nvidia and other megacaps will test whether current valuations are sustainable. Investors will keep balancing AI-driven growth against lingering geopolitical and inflation risks.

The Guardian