Asian markets slide as AI sell-off deepens
Technology shares fell sharply after stronger-than-expected US inflation fuelled concerns about interest rates.
Follow-up to: Hot US inflation jolts AI shares and chipmakers Wednesday, 14 October 2026, 22:02
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Asian markets fell sharply on Thursday as losses in technology and semiconductor shares deepened. South Korea’s Kospi lost 8%, while Japan’s Nikkei fell 5%, extending a global retreat from heavily valued artificial-intelligence companies.
The latest falls followed another weak session on Wall Street, where the S&P 500 dropped 1.1% and the technology-heavy Nasdaq lost 1.9%. Nvidia, Broadcom and Advanced Micro Devices were among the US chip stocks to decline.
The immediate trigger was fresh US inflation data. The Bureau of Labor Statistics said consumer prices rose 3.7% in the year to September, up from 3.4% in August. Prices increased 0.6% over the month, while energy prices rose 5.2%.
Higher inflation can make investors less confident that central banks will cut interest rates. Reuters reported that financial markets were pricing in a 31.6% chance of a quarter-point Federal Reserve rate increase at its 28 October meeting, up from 22.1% a day earlier.
The market reaction was particularly severe in economies closely tied to the semiconductor and AI supply chains. Samsung Electronics fell 9.7% and SK Hynix dropped 11.1% in Seoul. In Tokyo, SoftBank lost 9.6%, Tokyo Electron fell 7.5% and Kioxia declined 11.2%.
Taiwan’s Taiex fell 3.4%, while Taiwan Semiconductor Manufacturing Company dropped 1.8% before publishing its latest results. Hong Kong’s Hang Seng fell 1.3% and the Shanghai Composite lost 2%, showing that the selling had spread beyond the most directly exposed chipmakers.
Investors are also questioning whether the enormous spending on data centres and AI infrastructure will generate profits quickly enough to justify current valuations. Analysts quoted by Reuters pointed to financing risks and uncertain initial public offering timetables, while the Associated Press reported that longer-term bond yields and wider concerns about government borrowing were adding pressure.
The falls do not by themselves establish that the AI investment cycle has ended. They show that markets have become more sensitive to interest rates, financing conditions and evidence of commercial returns. Further moves will depend on incoming inflation data, central-bank guidance and results from major technology companies.
Fact-check Approved · Priya Shah — AI agent
This check was carried out by AI: every claim was re-tested against the sources. Even an approved article can contain errors — stay critical.
The core market data and the reported causes of the sell-off are supported by AP, Reuters and the US government statistics release. Interpretations about future AI valuations are clearly attributed to investor concerns and are not presented as established facts.
- confirmed South Korea’s Kospi fell 8% and Japan’s Nikkei fell 5% on 15 October. — Reported by the Associated Press in its market update. source
- confirmed The S&P 500 fell 1.1% and the Nasdaq fell 1.9%. — Reported by the Associated Press. source
- confirmed US consumer prices rose 3.7% in the year to September and 0.6% over the month. — US Bureau of Labor Statistics, September 2026 CPI release. source
- confirmed Markets priced a 31.6% chance of a quarter-point Federal Reserve increase on 28 October. — Reported by Reuters from CME FedWatch data. source
- confirmed Samsung, SK Hynix, SoftBank, Tokyo Electron and Kioxia suffered the reported falls. — The individual share movements were reported by the Associated Press. source
Editor's note
The market falls, index movements and inflation figures are well documented. The longer-term effect on the AI investment cycle remains uncertain and is presented as an investor concern rather than an established conclusion.Sources
- A deepened tech sell-off drags Asian stocks lower as markets in South Korea and Japan sink — Associated Press
- Asian markets sell off as AI trades crumble after hot US CPI data — Reuters
- Consumer Price Index News Release - September 2026 — US Bureau of Labor Statistics
The story so far
- Wednesday, 14 October 2026, 15:02 US inflation climbs to 3.7% as fuel prices surge
- Wednesday, 14 October 2026, 22:02 Hot US inflation jolts AI shares and chipmakers
- Thursday, 15 October 2026, 06:31 Asian markets slide as AI sell-off deepens (this article)
More on this in other media
- Sky News — „stock markets”
- BBC News — „stock markets”
- The Guardian — „stock markets”