Asian technology stocks experienced a sharp selloff on Friday, November 6, 2026, tracking a severe decline on Wall Street overnight [1][2]. Japanese and South Korean markets were hit particularly hard as investors grew concerned about potential delays in data center construction following the Democratic party's sweeping victory in U.S. midterm elections [1]. The Nasdaq Composite sank 5.5%, closing more than 10% below its recent peak and entering correction territory, while the Philadelphia Semiconductor Index plunged 12.2% [2].
The declines were widespread across Asian semiconductor and technology stocks. In South Korea, SK Hynix plunged over 8% and Samsung Electronics shed 7%, with LG Innotek and LG Display falling 10% and 7.7% respectively [2]. Japanese semiconductor stocks also suffered significant losses: Advantest plunged 12.2%, Tokyo Electron slid 7.3%, SoftBank Group tumbled 11.6%, Kioxia Holdings fell nearly 10%, and Renesas Electronics declined 7.5% [2].
The underlying catalyst for the selloff centered on investor concerns that the Democratic victory could result in tighter restrictions on data-center development, potentially slowing demand for AI chips and related infrastructure [1][2]. More broadly, the rout reflected mounting concerns about the sustainability of the AI investment boom and returns on massive data-center spending [2]. The construction of data centers has become a contentious political issue in the U.S. and internationally [1].
CONCLUSION
The sharp decline in Asian technology stocks reflects a significant reversal in AI-related investment sentiment, driven by concerns that Democratic policy could restrict data center expansion and slow AI infrastructure spending. The 5.5% Nasdaq decline and 12.2% semiconductor index plunge indicate a broad reassessment of AI investment sustainability, with major chipmakers and semiconductor equipment suppliers bearing the brunt of the selloff.