AI Fears and US Midterms Spark Asian Stock Market Slump

Global Stock Markets Slide as US Midterm Results Trigger Tech Sell-Off and AI Infrastructure Concerns

Global stock markets retreated sharply following the Democratic victory in the United States midterm elections, which investors fear will introduce stricter regulations and slow down the artificial intelligence infrastructure boom. Markets across Asia suffered steep declines, while Wall Street futures pointed to a mixed session after a chaotic trading day that erased more than $3 trillion in market value. Technology shares tumbled into correction territory, shedding up to 6.4% before paring losses to 5.5%. The S&P 500 dropped 4.4% to reach its lowest level since April 2025, signaling that the sell-off extended well beyond sectors directly tied to AI hardware development. European exchanges mirrored the downward trajectory, with Piazza Affari and other continental markets posting widespread losses amid persistent worries over data center profitability and macroeconomic data. Websim reported that the Nasdaq lost 4%, the S&P 500 fell 2.5%, and the Dow Jones slid 2%. Meanwhile, the CBOE Volatility Index (VIX) surged to 26 points, marking its highest level since late March.

Asian Bourses and Wall Street Giants React to the Blue Wave

Asian markets bore the brunt of the initial shock. Tokyo’s Nikkei index plunged between 6% and 7%, sliding 20% from its all-time high in June to enter bear market territory, while the broader Topix index fell nearly 6%. In South Korea, the Kospi crashed 8.5% during the session before stabilizing at a 6% loss, hitting a nine-month low as retail investors adopted a wait-and-see stance. Chinese markets also retreated, with Shanghai and Hong Kong indices dropping around 1%. At Wall Street, the market’s post-election honeymoon proved short-lived. Hyperscale cloud service providers faced heavy selling pressure. Microsoft slipped 3.6%, while Oracle dropped 7%. Semiconductor stocks were hit particularly hard, with the Philadelphia Semiconductor Index (SOX) tumbling 10% to 9,220 points, its lowest level since April and down 37% from its June peak.

European Indices Plunge Amid Weak Retail Data and Semiconductor Slump

European indices suffered steep declines alongside the American tech rout. Frankfurt plummeted, London dropped, and Paris lost, according to data reported by Borsa Italiana. Milan’s FTSE MIB fell 1.34% to 52,473 points. Within the Italian blue-chip index, STMicroelectronics and Technoprobe fell roughly 12% in sympathy with the broader semiconductor slump, whereas Tenaris gained 1.67% following its quarterly earnings release. The downturn coincided with the release of weaker-than-expected economic figures from Eurostat, which showed Eurozone retail sales falling 0.7% in September against a consensus estimate of a 0.1% decline. On the geopolitical front, market caution persisted as the Emir of Qatar, Sheikh Tamim bin Hamad Al Thani, spoke with US President Donald Trump regarding regional mediation efforts, according to Borsa Italiana.

Frequently Asked Questions About the Market Correction

Why did the US midterm election results trigger a tech sell-off?

Investors fear that the Democratic victory in the midterm elections will lead to stricter regulatory oversight and policy headwinds for artificial intelligence infrastructure, data centers, and major cloud service providers.

How did European and Asian markets respond to the Wall Street plunge?

Asian bourses suffered severe losses, led by Tokyo dropping into bear market territory and Seoul’s Kospi plunging to a nine-month low. European markets followed suit, with Frankfurt and London falling over 2% and Milan’s FTSE MIB dropping 1.34%.

What macroeconomic factors influenced the trading session alongside the tech sell-off?

Eurostat reported that Eurozone retail sales fell 0.7% in September, missing consensus estimates. At the same time, investors monitored US employment data, Treasury yields, and commodity price shifts, including an increase in spot gold and crude oil.

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