The beginning of November left November 5 marked in red following the slump in semiconductor and artificial intelligence (AI) infrastructure stocks. The trading session was defined by a severe wave of global risk aversion, driven by accelerating sell-offs across semiconductor companies after the confirmation of a Democratic sweep across both houses of the U.S. Congress.
This episode across the technology sector caused market sentiment to deteriorate further, driven by questions surrounding the sustainability of the AI capital expenditure cycle. The environment shifted into a distinct risk-off posture, favoring safe-haven assets and reinforcing expectations of moderating global growth. However, rather than an outright mass exit of capital from equities, the session reflected an aggressive rotation toward defensive sectors. The S&P 500 dropped 4.4%, the Nasdaq Composite fell 5.5%, and the Nasdaq 100 declined 6.4%, marking its worst single session since March 2020.
The downturn represented an acute risk-off movement led by AI and technology. The Nasdaq fell 5.5% and the Philadelphia Semiconductor Index dropped roughly 12%, reversing the initial post-election rally. This transferred directly to Asia, where Taiwan and South Korea were hit hard at the open given their extensive exposure to semiconductors, memory, and the broader AI supply chain. The primary concern for markets is how the U.S. midterm election results could impact the pace of AI investment.
The core question is whether AI demand will continue growing at an explosive rate. Unease had already begun mounting amid perceptions that figures and valuations previously circulated around Anthropic appeared stretched. The trigger for the sell-off was the U.S. midterm election outcome. However, the magnitude of the declines was driven in large part by leveraged market participants—including hedge funds, specialized investment pods, and retail accounts, alongside institutions operating under restrictive risk mandates. When panic sets in, multiple participants attempt to exit the market simultaneously.
The impact of the midterm elections
Democratic gains increased scrutiny regarding data center development at a time when investors were already questioning the financing structures and return profiles underpinning the scale of AI capital expenditures. This explains why the reaction concentrated in the technology sector and why U.S. Treasury yields fell, as investors priced in potentially slower AI deployment and softer macroeconomic growth.
Concerns regarding aggressive regulatory oversight of artificial intelligence and data center facilities triggered a broad-based exit from tech, overshadowing solid U.S. labor and macroeconomic data—with initial jobless claims falling to 189,000 and productivity rising 3.6%.
Across mega-cap corporations, regulatory and operational uncertainty yielded mixed dynamics. Apple attracted substantial institutional demand, receiving over $31B in book orders for an investment-grade bond offering seeking to raise up to $7B. Meanwhile, Google reaffirmed its infrastructure roadmap by announcing a $17B investment in its first data center in Wyoming. In contrast, Microsoft increased operational oversight of its cloud infrastructure vendors (such as Nebius, IREN, and Nscale) amid mounting construction delays and cost overruns at its data centers in Texas. Additionally, supply chain concerns intensified following anticipated regulatory hurdles for new builds across Texas, Georgia, and Ohio, paired with downward target price revisions for ARM Holdings.
Market volatility following the Democratic victory highlighted renewed apprehension regarding capital expenditure throughout the AI wave. The initial post-midterm rebound had been robust, reflecting the defensive posture investors maintained ahead of a potentially contested vote. While clarity initially provided relief, it proved short-lived: overnight, fears that a unified Democratic Congress could curtail the pace of AI deployment sparked a worldwide tech rout. The Nasdaq fell 5.5%, Asian semiconductor markets followed suit, and both sovereign debt and gold absorbed safe-haven inflows. The market’s initial post-election verdict proved far from settled.
The investment cycle remains intact
This drawdown reflects a repositioning rather than a structural deterioration of the AI investment cycle. Broader equity indices retain upside potential over a 6-12 month horizon. Given that further volatility is likely, focus should center on managing concentration risk, rebalancing outsized technology exposure, and building a resilient core multi-asset allocation.
The AI investment cycle remains structurally sound, corporate earnings growth continues to prove resilient, and a supportive global cyclical backdrop should underpin equities. While markets may absorb a period of digestion following the election outcome, underlying fundamentals do not warrant a protracted downturn.
The AI cycle has not yet reached its peak. Demand remains solid, and recent corporate earnings indicate that compute capacity continues to be constrained. Allocators are weighing the pace of AI growth against the cost of capital, turning increasingly selective by rewarding businesses that fund investments out of operating cash flows.
The next phase of the cycle will increasingly favor higher-quality companies with balance-sheet access to capital, while opportunities expand toward end-market adopters of AI rather than pure capex infrastructure providers. Maintaining dialed-back exposures, evaluating markets from a technical standpoint, and selectively identifying entry points into higher-quality firms remain the operational priorities.
