The AI sell-off compared to well-known stock market crashes

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The AI sell-off compared to well-known stock market crashes

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6 Nov 2026

The S&P 500 is 6% below its record, a small autumn next to former crashes: since 1928, lone 16 of 56 drops that reached 6% went former 15%. Tech took additional of the hit. The Nasdaq is 11% downward and US part stocks 36%, as profound as their Covid fall. How lengthy a improvement takes varies fair as much: following dot-com, the S&P 500 was rear at its document in 7 years, part stocks in 18.

The S&P 500 at the near on 6 Nov 2026

Below record−6%From its document close

Thursday 5 Nov−4.4%Worst day since 4 Apr 2025

Trading days since record23Since 6 Oct 2026

Slides that went former 15%16 of 56Slides since 1928 that reached 6%

How far the S&P 500 cut below a document close

Each row runs from a document elevated to the low that followed. Eight of the 16 falls former 15% since 1928 are shown.

Daily closes to 6 Nov 2026

100200300400500600 selling daysRecord−10%−20%−30%−40%−50%−60%−70%−80%−90%Great Depression: −86%1973 oil shock: −48%1987 crash: −34%Dot-com: −49%2008 crisis: −57%Covid: −34%2022: −25%April 2025: −19%AI sell-off: −5.7% following 23 days

Mild for the S&P 500, a collision for part stocks

How far all indicator is below its document now, against the lows of its own best-known former falls. US part stocks (the PHLX Semiconductor index) are 36% downward from their 22 Jun record, as profound as their Covid fall.

Daily closes to 6 Nov 2026

Record−10%−20%−30%−40%−50%−60%−70%−80%−90%S&P 500April 2025 −19%2022 −25%Covid −34%2008 −57%Great Depression −86%Now −5.7%

NasdaqApril 2025 −24%Covid −30%2022 −36%1973 −60%Dot-com −78%Now −10.9%

US part stocksCovid −35%April 2025 −40%2022 −47%Dot-com −87%Now −35.8%

After dot-com, the S&P 500 took 7 years to recover, part stocks 18

Years from all index's document near to its archetypal near rear at or complete it. Prices only: alongside dividends reinvested, most recoveries were shorter. These are worst cases, for person who bought at the record.

S&P 500NasdaqUS part stocks

Great Depression25.0 yearsBefore indexBefore index

1973 oil shock7.5 years5.7 yearsBefore index

1987 crash1.9 years1.9 yearsBefore index

Dot-com7.2 years15.1 years17.7 years

2008 crisis5.5 yearsInside dot-comInside dot-com

Covid6 months3.5 months3.5 months

20222.0 years2.3 years2.0 years

April 20254 months6.5 months1.2 years

AI sell-offNot yet: 1 month, −6%Not yet: 1 month, −11%Not yet: 4.5 months, −36%

About the data

  • The S&P 500 is the cost index, without dividends, from regular closes on Yahoo Finance. Before March 1957 the sequence is its predecessor, the S&P 90.
  • A autumn runs from a document near to the next record, so the 2011 autumn sits inner the 2007 to 2013 one. Its degree is the lowest near before the next record.
  • "AI sell-off" is our name for the glide since the 6 October 2026 record.

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