Financial markets worldwide declined sharply following the release of elevated US inflation figures that exceeded analyst expectations. Consumer price inflation reached 3.7% in September, marking the fastest increase since May when the rate peaked at 4.2%. Producer prices also surged, rising 6.3% year-over-year in September, the most substantial increase since December 2022. The economic data prompted investors to anticipate additional interest rate hikes from the US Federal Reserve, with some market participants betting on another increase before the end of the month.
The inflationary pressures triggered a widespread technology sector selloff, particularly impacting companies tied to artificial intelligence and semiconductor manufacturing. South Korea’s Kospi 200 index, which carries significant exposure to memory chip producers, fell more than 8% to its lowest point in six months, with individual stocks like SK Hynix and Samsung Electronics experiencing declines of approximately 11% and 9.5% respectively. Japan’s Nikkei 225 dropped 4.9%, with memory chip manufacturer Kioxia and investment firm SoftBank recording double-digit percentage losses. US markets also declined, with the Nasdaq Composite falling 1.9% and the S&P 500 dropping 1.1%, followed by additional losses when trading resumed.
Analysts attributed the sell-off to compounding concerns about the AI sector’s financial sustainability combined with rising inflationary pressures. The broader price increases extended beyond energy costs, affecting a wide range of consumer goods and services. This development aligns with recent warnings from the International Monetary Fund regarding potential risks from AI share price corrections to global financial stability. Asian markets faced particular exposure to such volatility given regional concentration in chip manufacturing and AI investment, while markets in China and Taiwan also experienced declines despite some companies reporting positive earnings results.
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