6 Nov 2026
The AI sell-off compared to other stock market crashes
Thursday's 4.4% fall was the S&P 500's worst day since April 2025. It left the index 6% below its 6 Oct record after 22 trading days. Since 1950, 58 slides reached 6% and 15 went past 15%; the best-known falls went 19% to 57% deep. The tech-heavy Nasdaq is 12% off its October high and US chip stocks 38% off their June high.
The S&P 500 at the close on 5 Nov 2026
- Below record
- −6%
- From its record close
- Thursday 5 Nov
- −4.4%
- Worst day since 4 Apr 2025
- Trading days since record
- 22
- Since 6 Oct 2026
- Slides that went past 15%
- 15 of 58
- Slides since 1950 that reached 6%
How far the S&P 500 fell below a record close
Each line is a fall from a record, by trading day since it. The seven best known of the 15 falls past 15% since 1950 are drawn.
Daily closes to 5 Nov 2026
| Fall | Record close | Below record | Trading days |
|---|---|---|---|
| AI sell-off | 6 Oct 2026 | −5.9% | 22 |
| April 2025 | 19 Feb 2025 | −18.9% | 34 |
| 2022 | 3 Jan 2022 | −25.4% | 195 |
| Covid | 19 Feb 2020 | −33.9% | 23 |
| 2008 crisis | 9 Oct 2007 | −56.8% | 355 |
| Dot-com | 24 Mar 2000 | −49.1% | 637 |
| 1987 crash | 25 Aug 1987 | −33.5% | 71 |
| 1973 oil shock | 11 Jan 1973 | −48.2% | 436 |
About the data
- The S&P 500 is the price index, without dividends, from daily closes on Yahoo Finance.
- A fall runs from a record close to the next record, so the 2011 fall sits inside the 2007 to 2013 one. Its depth is the lowest close before the next record.
- "AI sell-off" is our name for the slide since the 6 October 2026 record.