Asian stock markets experienced a severe sell-off on November 6, 2026, following a tech-driven rout on Wall Street, as investors grew concerned about potential delays in data center construction following the Democratic victory in U.S. midterm elections [1][2]. The Korea Exchange imposed a circuit breaker during morning trading after the KOSPI fell 8.7% at one point [1], with the index ultimately tumbling more than 8% and triggering a temporary market-wide trading halt [2]. South Korea's AI data center memory suppliers Samsung and SK Hynix plunged more than 10% in early trading before recovering some losses [2]. Japan's Nikkei 225 index fell as much as 6%, entering bear-market territory and marking Japan's worst week since 2020 [2]. Taiwan's TAIEX index, home to critical AI companies including chip supplier TSMC, dropped 9% [2].
The broader market deterioration reflected significant losses across major U.S. indices overnight. The Nasdaq 100 dropped 6.3%, wiping off $2.3 billion in market value, while the S&P 500 fell 4.4%, erasing $2.8 trillion in market value—their worst day in 18 months [2]. European markets also opened lower, with London's FTSE 100 falling 1.6%, while the French CAC40 and German DAX indices took similar hits [2].
Analysts attributed the sharp declines to the election outcome and its implications for AI infrastructure development. According to Charu Chanana, Chief Investment Strategist at SAXO Markets, "Markets are being punished according to their dependence on the U.S. AI infrastructure cycle" [2]. Tai Hui, J.P. Morgan's APAC Chief Market Strategist, noted that companies in Taiwan, South Korea, and Japan are "clearly highly linked to the global AI capex cycle and hence I am not surprised to see the magnitude of correction today following the sharp correction in the U.S." [2]. The market concerns stem from the rise of anti-AI and anti-data center politicians, including Gov.-elect Gina Hinojosa in Texas, the largest data center market in the country [2]. A Democratic Congress could tighten scrutiny of the industry, including AI infrastructure projects, which could cause delays and additional costs, adding to investor worries about the profitability of these investments [2].
CONCLUSION
The November 6, 2026 sell-off represents a dramatic reversal for Asian tech markets, which had experienced significant gains during the AI boom in June but now face heightened regulatory uncertainty following U.S. midterm results [1][2]. The magnitude of losses—particularly in AI-dependent markets like South Korea, Taiwan, and Japan—reflects investor concerns that anti-AI political sentiment could materially impact the profitability and timeline of critical infrastructure investments [2]. This correction underscores the vulnerability of Asian tech stocks to U.S. policy shifts and the concentration risk in the AI infrastructure cycle.