Political shifts trigger market rout
The Nasdaq Composite clearly fell more than 5.5% on November 5, erasing $2.5 trillion in market value and marking the worst single day for major US indices since 2025. I see this market rout as a direct reaction to the Democratic Party winning control of both the Senate and the House in the November 3 midterm elections, where candidates campaigned on platforms to slow AI development and data center expansion. Democratic candidates won on promises to limit the spread of AI and data centers, leading to dozens of votes nationwide to restrict such developments. Texas Governor-elect Gina Inohoe vowed to pause new data center construction, and Senator Bernie Sanders posted on X on November 5 that Americans do not want "big tech powers" destroying the environment, eliminating jobs, or threatening the human future. These political shifts hit semiconductor firms hard, as AMD and Micron both fell over 17%, Intel dropped 10.3%, and SanDisk plunged more than 22%.
Tech giants lose massive value
The sell-off clearly gutted the "Magnificent 7", which lost $1 trillion in a single day. I find the volatility in Elon Musk’s holdings particularly sharp because he spent $450 million to support Republican candidates like Ken Paxton, specifically allocating at least $45 million to his campaign, yet the market fell as Texas shifted toward the Democrats. Nvidia lost more than 9% of its value, which removed $400 billion in market cap, while Tesla and SpaceX saw declines of 11% and 8% respectively, resulting in a combined $300 billion loss for both companies. The Philadelphia Semiconductor Index, which tracks 30 major semiconductor companies, dropped more than 12% as investors fled the sector.
| Entity | Change | Impact |
|---|---|---|
| Nasdaq Composite | -5.5% | $2.5 trillion loss |
| S&P 500 | -4.4% | – |
| Dow Jones | -3.4% | – |
| Nvidia | -9% | $400 billion loss |
| AMD | -17% | – |
| Micron | -17% | – |
| Intel | -10.3% | – |
| SanDisk | -22% | – |
| Tesla | -11% | – |
| SpaceX | -8% | $300 billion (combined) |
Susanna Streeter, a senior investment strategist at Wealth Club, said "AI investment fear" hit Wall Street because investors fear data center construction will slow down. Greg Brockman, the President and Co-founder of OpenAI, told the WSJ Tech Conference in Napa on November 5 that leaders must work harder to communicate with local communities. Meta executive Dina Powell McCormick said companies must work two or three times as hard to explain AI benefits. Donald Trump attributed the market decline to "stupid Democrats" in a post on SNS.
