Technology stocks triggered a sharp global market rout this week, as investors reacted to the Democratic victory in the US midterm elections. The sell-off, driven by fears that new leadership will increase regulatory scrutiny on artificial intelligence and stall data center expansion, wiped approximately $3 trillion from S&P 500 firms, according to RTE.
Markets across Asia and Europe suffered significant losses as investors moved capital into the relative safety of bonds. While Wall Street staged a partial recovery by Friday, with the Nasdaq and S&P 500 rising 1.8% and 1% respectively, global indices remained under pressure following a week of volatility, CNN reported.
Asian Markets Confront Steep Declines
The impact was most immediate in Asia, where major indices experienced their largest drops in years. Japan’s Nikkei index slumped 6%, marking its deepest one-day decline since April 2025, RTE noted. South Korean and Taiwanese markets faced similar pressure, with both indices plunging more than 8% shortly after the opening bell.
Good morning. The broader market impact of yesterday’s selloff in the NASDAQ, the largest since March 2020, is a reminder of how much is levered on the AI trade — for both good reasons (productivity promise, investment scale, IPO prospects, etc.) and less good…
Authorities in the region scrambled to stem the selling, RTE reported. Despite this, the index clocked a 12.2% decline for the week, its biggest since 1991, LSEG data showed.
European Indices Track Global Tech Sell-off
European markets followed the negative trend, though they remained less tech-heavy than their US or Asian counterparts. By Friday afternoon, London’s FTSE was down 1.5%, while the Paris CAC and Frankfurt DAX dropped 1.2% and 2.2% respectively, RTE reported. CNN noted that the region’s benchmark Stoxx 600 index fell 1.7% early in the session, reflecting a broader retreat from the AI-linked trades that dominated market growth earlier this year.
The S&P 500 fell 4.4% today, its biggest down day since April 2025 (during tariff turmoil) and 37th biggest decline since 1989. Important for investors to remember: volatility cuts both ways and is not linear over time. Big down days and big up days often occur near each other. pic.twitter.com/gHX99Az34p
Investors Reassess the AI Infrastructure Boom
The market volatility centers on the sustainability of AI-related infrastructure spending. Analysts suggest that the previous surge in stock prices was built on optimistic projections that are now being re-evaluated.
Concerns are now extending to the physical and financial viability of AI expansion. Additionally, the AI cloud provider CoreWeave saw its shares drop 10%, while its credit default swap spreads reached record levels, indicating heightened anxiety regarding the sector’s ability to raise funds in a tighter interest-rate environment, RTE stated.
Frequently Asked Questions About the Market Downturn
Why did the US midterm election results trigger a sell-off?
Investors are concerned that the Democratic party’s control of Congress will lead to stricter regulatory oversight of AI technology and data center construction. This uncertainty threatens the investment boom that drove significant market growth over the past year, according to CNN.
How much value was lost during the market decline?
Wall Street saw approximately $3 trillion in market value wiped off S&P 500 firms during the peak of the volatility, RTE reported. CNN noted that the total value lost across the broader market rout was estimated at roughly $2.5 trillion.
Have any major tech companies been specifically impacted? Yes, chipmakers and AI-related firms faced severe pressure. Nvidia suffered its worst day since January 2025, and major firms including TSMC saw significant share price declines as a global rout in technology stocks rippled through markets.