Global Semiconductor Sell-Off Follows US Midterms and Democratic Wins
Global technology stocks suffered severe declines on international markets following the United States midterm elections, where congressional Democrats secured sweeping victories that left investors bracing for heightened regulatory scrutiny on artificial intelligence and data center expansion.
The benchmark Nikkei index in Tokyo dropped 5.27 percent by early trading, while the Taiex index in Taipei fell more than 8 percent driven by a sharp decline in semiconductor giant TSMC. In South Korea, the Kospi index tumbled nearly 9 percent, triggering a temporary 20-minute automatic trading suspension. The Kospi has lost nearly half its value since peaking in mid-June.
Wall Street Record Tech Drop Precedes Asian Market Plunge
The Asian market sell-off followed a steep downturn on Wall Street, where the technology-heavy Nasdaq plunged 5.52 percent. That marked the index’s largest single-session drop since April 2025, when President Donald Trump imposed sweeping global tariffs.
Market analysts attributed the losses to investor apprehension over potential legislative roadblocks facing artificial intelligence infrastructure. Several newly elected Democrats campaigned on slowing the construction of data centers within their districts. Concurrently, voters in dozens of American cities approved local restrictions or bans on new data facilities during Tuesday’s ballots.
Massive capital expenditure by major technology companies toward artificial intelligence and data center development has served as a primary engine of equity markets and broader US economic growth in recent years.
Capitulation Across Global Chipmakers and the Magnificent Seven
Market strategists described the sudden downward spiral as a market capitulation. Neil Wilson, an analyst at Saxo Markets, pointed to market anxiety fueled by calls from US Senator Bernie Sanders for a moratorium on data center construction.
The political shift across both chambers of Congress and key Republican strongholds such as Texas intensified concerns over hundreds of billions of dollars poured into artificial intelligence ventures with uncertain returns. Michael Hewson of MCH Market Insights noted that investors sold off assets over worries about political opposition to artificial intelligence development plans, alongside fears that Texas policymakers might target Elon Musk’s Tesla and SpaceX due to his political alignment with Donald Trump.
Semiconductor manufacturers, which supply essential components for data center hardware, bore the brunt of the panic. In South Korea, Samsung Electronics shares fell nearly 10 percent, while SK hynix dropped over 11 percent. Japanese chip equipment suppliers followed suit, with Tokyo Electron declining roughly 9 percent and Kioxia shedding 13 percent.
In New York trading sessions, Broadcom dropped 10.15 percent, Micron fell 17.17 percent, and Advanced Micro Devices lost 17.39 percent. Nvidia, the world’s second-largest company by market capitalization, dropped 8.91 percent, wiping out approximately $400 billion in value.
Collectively, the group of major US tech companies known as the Magnificent Seven—including Nvidia, Meta, Alphabet, and Microsoft—shed roughly $800 billion in a single session, surpassing the gross domestic product of Sweden. European semiconductor equities absorbed similar losses in trading, with Infineon dropping 8.63 percent in Frankfurt, ASML falling 6.55 percent in Amsterdam, and STMicroelectronics declining 9.33 percent in Paris.
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