A group of ten of the world's most influential artificial intelligence and semiconductor companies lost a combined 1.64 trillion in market value over seven trading days between October 29 and November 7, 2025, in one of the sharpest pullbacks of the AI boom to date.
The losses - spanning Nvidia, Microsoft, Meta, Broadcom, Oracle, TSMC, AMD, Palantir, Apple and ASML - rattled markets globally, given the companies' central role in the AI hardware and software supply chain. The sell-off erased an amount nearly equivalent to the entire Spanish stock market and almost half the market capitalisation of Canada.
Nvidia saw the steepest decline, shedding roughly 459 billion, followed by Microsoft 333 billion and Meta 321 billion. Broadcom lost an estimated 173 billion, while Oracle, TSMC, AMD, Palantir, Apple and ASML recorded declines ranging from 21 billion to 102 billion.
