An AI stocks market crash erased about $2.9 trillion from listed companies on November 5, 2026, as investors confronted the prospect of tighter data-center regulation after Democrats’ midterm election victories. The Nasdaq Composite fell 5.52% into correction territory, while concerns about returns on massive artificial intelligence investments intensified the selling.
Summary
Key takeaways
- The Nasdaq Composite’s 5.52% slide put it in correction territory.
- Democratic election wins heightened concerns about restrictions on AI infrastructure.
- Tesla and SpaceX each lost nearly 10%.
- The sell-off spread to Asian and European markets.
The AI stocks market crash hits major US indexes
The Nasdaq Composite fell 5.52% to end the session at 24,315.00, while the S&P 500 dropped 4.36% to settle at 7,353.73. Meanwhile, the Dow Jones Industrial Average shed 1,833.06 points, equating to a 3.44% slide, closing at 51,523.06 after an intraday drop that also topped 1,800 points.
The Nasdaq’s correction means it has fallen at least 10% from its high. The Nasdaq and S&P 500 recorded their worst sessions since April 2025.
The narrower Nasdaq 100 fell 6.3%, shedding $2.3 trillion in market value. The S&P 500 lost $2.8 trillion in value; the broader estimate of losses across listed companies was about $2.9 trillion.
Thursday’s reversal followed an initial rally after election results arrived quickly and clearly. Despite the sell-off, the Nasdaq Composite remained more than 30% above its level at the time of the 2024 presidential election.
Election victories raise data-center regulatory concerns
Hundreds of newly elected Democrats had pledged to slow or halt AI data-center construction, raising investor concerns about tighter regulation. Those victories included governors, attorneys general and lawmakers in states central to the infrastructure build-out.
Texas, Ohio, Michigan and Georgia drew particular attention because they are major data-center markets. In Texas, governor-elect Gina Hinojosa’s victory was among the election outcomes investors had not anticipated.
Markets had broadly expected Democratic congressional majorities, but not the scale of the victories. Investors feared that the incoming Congress, which convenes in January, would translate campaign promises into restrictions on an industry described as a principal driver of US economic growth.
Data centers’ heavy water and energy consumption featured in opposition to construction. Support for limits crossed party lines.
The AI stocks market crash also reflected a concern already weighing on investors: hundreds of billions of dollars have gone into chips, servers and data-center capacity, while questions persist about when those investments will generate returns. Regulatory delays threatened to extend that wait.
Musk companies and chipmakers suffer heavy losses
Tesla and SpaceX each fell nearly 10%, amid fears of tighter oversight and investigations following the Democratic victories. Elon Musk had spent hundreds of millions of dollars supporting Republican candidates.
The two companies had together shed more than $400 billion in market value since the election results. Both are developing AI, and SpaceX has also emerged as a data-center developer.
Weakness extended across the chip industry. Mixed earnings reports from Qualcomm and Arm Holdings added to the pressure: their shares fell 9.5% and 13%, respectively. The Philadelphia semiconductor index dropped 12.3%, its worst day since March 2020, while Nvidia lost 9.2% and was the largest contributor to the Dow’s decline.
Donald Trump blamed Democrats publicly in a Truth Social post, linking the market losses to the election outcome.
Ed Yardeni of Yardeni Research had warned before the vote that a Democratic Congress might complicate spending and debt negotiations and push Treasury yields higher. After the sell-off, he said: “Today is the cold shower that I anticipated might occur after a blue-wave situation.” Treasury yields nevertheless edged lower during Thursday’s trading.
Asian and European markets follow Wall Street lower
The sell-off spread overseas on November 6, with sharp declines in Asian equities and a weaker European opening. Japan’s Nikkei traded about 6% lower, while Seoul opened down 8.5%.
South Korea’s Kospi decline triggered a 20-minute trading halt. Samsung and SK Hynix initially lost more than 10% before recovering some ground. Taiwan’s TAIEX dropped 9%, and markets in Taiwan and South Korea later recovered part of their intraday losses.
European stocks also opened lower, with Milan down about 1.5%. Despite Friday’s losses, South Korea’s Kospi remained nearly 25% higher for the year.
Article produced with the assistance of artificial intelligence and reviewed by the editorial team.
