Lead: A sweeping sell-off across major financial hubs began after the Democratic Party's decisive victory in the US midterms, triggering widespread fears of an impending slowdown in artificial intelligence-driven economic growth.
The global stock markets entered a period of turbulence on Thursday and continued into early trading hours on Friday as investors reacted to political developments that signaled potential shifts in technology policy. The initial trigger was a sharp drop in Wall Street’s tech sector—most notably in chip stocks—that followed the Democrats’ electoral triumph. This event sparked immediate ripple effects through international equity markets, with Asian and European indices following suit within 24 hours.
Wall Street’s Tech Sector Under Fire
On Thursday, the Nasdaq Composite index recorded its worst performance since November 2025—a span of nearly 19 months—declining by 5.5%. That day marked one of the most volatile sessions for US equities in recent memory. Among the hardest-hit companies were SanDisk, a leading manufacturer of memory chips, which saw shares fall over 22%, and Western Digital, a major hard drive producer, whose stock dropped more than 17%.
The sell-off was not isolated to individual stocks but reflected broader market sentiment toward artificial intelligence infrastructure investments. As datacentres become central to AI operations, any perceived slowdown in their construction or expansion has been interpreted as a threat to ongoing tech-sector growth cycles. This concern intensified after analysts began warning that rising political uncertainty could lead to reduced capital allocation into high-risk innovation projects.
Market Volatility Surges
To measure investor anxiety, the VIX index—the so-called 'fear index'—rose by over 60 percentage points on Thursday and reached its highest level since early 2024 during the Iran conflict period. The spike indicates an unprecedented surge in market volatility, suggesting investors are preparing for significant downside risk rather than expecting recovery.
The rise of the VIX reflects a broader psychological shift: traders who had previously been confident about AI-driven economic expansion now face uncertainty regarding future policy directions from newly elected officials. This sentiment is particularly acute given that many tech firms rely heavily on government support or regulatory stability to maintain long-term investment plans.
Global Market Reactions
By Friday morning, Asian markets were already experiencing severe losses as investor confidence eroded across time zones. Japan’s Nikkei 225 index plunged by 6%, while South Korea's Kospi fell more than 6.5%—the steepest drop in over a decade for the latter benchmark.
The downturn extended into Europe, where major indices saw significant declines. Germany’s Dax dropped 2%, France’s Cac 40 declined by 0.8%, and Spain’s Ibex lost 0.6%. The FTSE 100, which tracks blue-chip British companies including those involved in digital infrastructure, reached its worst point of trading on Friday morning at 10,528 points—a decline of up to 254 points or 2.35% from previous levels.
At one stage during early trading hours, the London market appeared poised for what would be its most severe downturn since March 2026—an event that coincided with a global economic uncertainty period following Brexit-related financial shocks. However, by day's end, some losses were partially reversed due to renewed buying activity on Wall Street as US markets reopened later in the week.
Investor Sentiment and Analyst Commentary
Susannah Streeter, chief investment strategist at Wealth Club, described how the sell-off had 'intensified' across asset classes: ‘The pain of the brutal sell-off on Wall Street carried straight through to Asia and knocked sentiment in Europe.’ She emphasized two key concerns driving investor anxiety—first, the expected slowdown in datacentre construction; second, growing doubts about returns from AI-related investments that have fueled a speculative boom over recent years.
The build-out of global datacentres has been central to supporting large-scale artificial intelligence operations. These facilities require massive capital outlays for power infrastructure, cooling systems, and physical space—all of which are now under scrutiny due to potential policy changes or economic headwinds post-election.
Christopher Forbes, head of Asia and Middle East at CMC Markets, echoed these sentiments: ‘It’s actually a bit of a disaster,’ he said during an interview with financial media outlets. He noted that clients had previously held long positions in index funds and individual equities—positions they were unable to exit quickly amid the rapid decline. 'All night, all day – we had client margin calls, client complaints … because it’s a very emotional thing,' he added. 'People are wedded to their views on stocks and outcomes.' This highlights not just market mechanics but also human behavior under stress—a key dimension often overlooked in technical analyses.
Market Recovery and Contradictory Signals
Despite the steep losses, there were signs of stabilization by Friday afternoon as trading resumed on Wall Street. The S&P 500 rose 0.8% early in New York session, while the Nasdaq climbed 1.6%, recovering part of its Thursday losses. These gains reflected improved sentiment following an unexpected employment report released earlier that week—showing US job creation increased by 165,000 in October, pushing unemployment down to 4.1%.
This data point was seen as a positive signal for economic resilience and helped ease some investor fears about macroeconomic instability. However, analysts caution against overinterpreting this recovery: ‘The market remains fragile,’ said Chris Beauchamp, chief market analyst at IG. He pointed out that although there had been a dramatic reversal from Wednesday’s performance, AI-related concerns remain prominent—and the risk of renewed selling persists if geopolitical tensions escalate or oil prices fluctuate significantly.
AI Investment and Policy Outlook
Mohit Kumar, an economist at Jefferies investment bank, offered a more balanced perspective on whether Thursday's sell-off signaled the beginning of broader corrections in tech valuations. 'We do not expect a quick rebound,' he stated, 'but we also believe it does not mark the start of the unwind of the AI trade.' His reasoning centers around two core arguments: first, that artificial intelligence remains a key driver of US economic growth; second, that datacentres and associated infrastructure create jobs—jobs which are politically sensitive given their regional distribution.
Democrats have historically supported innovation-driven industries as part of their platform to promote job creation and technological leadership. Kumar noted that policymakers would be unlikely to allow critical technology sectors such as AI infrastructure to shift from one region or state to another without significant public investment or regulatory oversight. This suggests that even if political outcomes change post-election, support for foundational tech investments is likely to remain strong in the near term.
Economic Indicators and Metal Markets
The impact of AI-related market fears has extended beyond equities into commodity markets. The London Metal Exchange recorded a sharp decline in copper prices—benchmark three-month copper dropped 0.61% on Friday—and was positioned for its largest weekly drop since March 2026.
Copper serves as an essential input material across semiconductor manufacturing, electronics production, and automotive industries—all of which are deeply intertwined with artificial intelligence systems. Craig Lang, principal analyst at CRU consultancy, explained that 'the price of copper is increasingly influenced by sentiment towards datacentre expansion.' As investor confidence wanes about future demand growth from AI infrastructure projects, so too does the appetite among buyers to commit capital into physical commodities tied to those sectors.
Broader Implications and Future Outlook
While global indices remain positive for the year—Nasdaq up 6.35% since January 2026 and FTSE 100 gaining nearly 7.5%—they are now significantly below their peak levels. The Nasdaq remains over 10% lower than its all-time high; the FTSE is more than 300 points beneath July’s record closing value. These figures indicate that although markets have not yet entered a full correction, they have experienced substantial drawdowns in what was once considered an expansionary phase.
The current situation underscores how political developments can directly influence financial market dynamics—even when no direct policy changes are announced. In this case, the midterms did not result in immediate legislative action on AI regulation or infrastructure spending—but rather triggered speculative reactions based on perceived shifts in governance priorities and economic strategy.
Moreover, while short-term volatility has been contained through partial recoveries by Friday afternoon, analysts warn of persistent risks: continued monitoring is required for oil price movements—especially after earlier declines—and potential escalations in geopolitical tensions such as those linked to Iran. These factors remain embedded within investor decision-making frameworks and could prompt further sell-offs if confidence deteriorates again.
In conclusion, Thursday’s tech rout was neither a random fluctuation nor an isolated event—it represented the intersection between political outcomes and financial market psychology. The Democratic victory did not directly alter AI policy; instead, it altered how investors perceive future investment prospects across high-growth sectors. As long-term economic growth remains dependent on innovation infrastructure, markets will continue to react sensitively to any signals suggesting shifts in technological ambition or public support for digital transformation.