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Why Did the Stock Market Crash on Nov 5, 2026?
Key takeaways
- The Nasdaq 100 fell 6.4%, the S&P 500 4.4%, the Dow 3.5% and the Russell 2000 4.6% on Nov 5 (as of Nov 5 close).
- The Nasdaq Composite fell about 5.5%, its worst day since April 2025, and entered correction territory.
- There was no single cause: politics, AI spending worries and company news all hit at once.
- Next dates to watch: US jobs report (today), CPI on Nov 10, Nvidia earnings, and the Fed on Dec 8–9.
Nov 5, 2026 was a rough day for US stocks. The biggest losses were in AI and chip companies. Here is what happened, what caused it, and what to watch next. All prices are as of Nov 5 close.
What happened on Nov 5, 2026
| Index | Move on Nov 5 |
|---|---|
| Nasdaq 100 (QQQ) | -6.38% |
| S&P 500 (SPY) | -4.39% |
| Dow Jones (DIA) | -3.50% |
| Russell 2000 (IWM) | -4.58% |
| Nasdaq Composite | about -5.5% (worst day since April 2025) |
Source: market data as of Nov 5 close. The chip index fell as much as about 12% during the day; reports differ by time of day.
About 12 large AI stocks lost roughly $1.4 trillion in value by the close. SpaceX and Tesla together lost about $420–450 billion over two days.
Why did stocks fall? Several things at once
- Politics. After the Nov 3 midterms, Democrats control both chambers of Congress and Texas flipped. Governors-elect in Texas (Gina Hinojosa, who pledged an immediate moratorium) and Ohio (Amy Acton, who backs a conditional one) oppose new data centers. That raised fears of slower AI buildouts.
- AI spending vs AI revenue. Investors worry that companies are spending more on AI than AI earns.
- Micron. It paused a planned $4.5 billion memory plant in Taiwan amid a labour dispute.
- Qualcomm. Its weak outlook added to the chip selloff.
- Oracle and Marvell. Both fell on plans to fund AI buildouts.
We do not think one cause explains the day. Each item above hit a market that was already nervous about how much AI companies spend.
The money backdrop
The Fed held rates at 3.75–4.00% on Oct 28. The 10-year Treasury yield is about 4.9% and the 10-year real yield about 2.65%. Markets are split on whether the Fed hikes in December. Higher rates make expensive growth stocks harder to justify.
What to watch next
- US jobs report: 8:30 AM ET today. The US jobs report was due at 8:30 AM ET on Nov 6. Check the release before acting on any view here, because it can move markets quickly.
- CPI inflation: Nov 10.
- Nvidia earnings: date to be confirmed by the company.
- Fed meeting: Dec 8–9.
- State action on data centers: whether any state actually passes a pause.
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Sources: CNBC, Reuters, Forbes and Yahoo Finance coverage of the Nov 3–5 markets; Federal Reserve data (FRED).
This is educational content, not financial advice. Markets carry risk; do your own research.
Last updated: Nov 6, 2026
Frequently asked questions
Why did the stock market crash on Nov 5, 2026?
There was no single cause. Fears about data-center limits after the midterms, worries that AI spending is outrunning AI revenue, a paused Micron plant, Qualcomm's weak outlook and Oracle and Marvell funding plans all hit at once.
How much did the Nasdaq and S&P 500 fall?
As of Nov 5 close, the Nasdaq 100 fell 6.38%, the S&P 500 4.39%, the Dow 3.50% and the Russell 2000 4.58%. The Nasdaq Composite fell about 5.5%.
Is this a correction?
The Nasdaq Composite entered correction territory, meaning a fall of 10% or more from its high. A correction is not the same as a recession.
What should I watch next?
The US jobs report, CPI inflation on Nov 10, Nvidia earnings, and the Fed meeting on Dec 8–9.