A trader at the New York Stock Exchange was working at the moment when the opening bell rang in New York City on November 4, 2026.

Timothy A . Clary | Afp | Getty Images

On Thursday, the stock market experienced a significant sell-off. Investors' concerns about the slowdown in artificial intelligence development not only impacted such transactions themselves but also dragged down the broader market.

The Nasdaq Composite Index, which has a high weight of technology stocks, fell by more than 5%, and at the close, it entered a correction zone along with the small-cap Russell 2000 Index. The blue-chip Dow Jones Industrial Average declined by more than 1,800 points, a drop of over 3%; the large-cap S&P 500 Index also fell by more than 4%.

These declines wiped out most of the gains from the rebound after the general elections on Wednesday, and even more than that.

The following are some of the most shocking figures from the sharp decline of that day:

• The Nasdaq Composite Index recorded its worst single-day performance since April 4, 2025, when the index fell by 5.82%.
• The S&P 500 index recorded its worst single-day performance since April 4, 2025, when the index fell by 5.97%.
• The Dow Jones Industrial Average recorded its worst single-day performance since April 4, 2025, when the index fell by more than 2,200 points, a decline of 5.5%.
• The combined market value of the "Big Seven" has evaporated by over $1 trillion, with NVIDIA leading the decline, suffering a market value loss of over $440 billion.
• NVIDIA tumbles by more than 9%, turning its year-to-date performance negative, with a cumulative decline of 2.6% since the beginning of this year.
• In terms of points, the CBOE Volatility Index (VIX) rose by 11.57 points, reaching its highest level since March 31, and recorded the largest point increase since April 4, 2025, when the VIX index rose by 15.29 points.
• In percentage terms, VIX closed up 69.66%, marking the third-largest one-day increase since 1990.
• On the New York Stock Exchange, there were 2,344 declining stocks compared to 416 rising stocks, a ratio of about 6 to 1.
• In the NASDAQ Composite Index, there were 4,166 declining stocks compared to 855 rising stocks, which is approximately a ratio of 5 to 1.
• All 11 sectors of the S&P 500 closed lower, with the technology sector leading the decline, falling by 7.30%, marking its worst single-day performance since March 16, 2020, when the same sector tumbled 13.92%.
• The industrial sector fell by 4.12%, recording its worst single-day performance since April 4, 2025, when the sector declined by 6.29%.
• Technology Selection Industry SPDR Fund ( XLK ) fell by 8.04%, recording its worst single-day performance since March 16, 2020, when the fund fell by 13.81%.
• XLK has traded over 33 million shares, which is more than three times its 30-day average trading volume of 9.2 million shares.
• 174 of the S&P 500 constituents, accounting for 34.6%, have fallen by 20% or more from their 52-week highs. These include SanDisk, Intel, Marvell Technology, Seagate Technology, Coinbase, Lumentum, Oracle, On Sem token issuance nductor, Micron Technology, Caterpillar, Robinhood, Alphabet, NVIDIA, and Lululemon.
• 310 of the S&P 500 constituents account for 61.6%, representing a decline of 10% or more from their 52-week highs.
• 59 of the constituents in the NASDAQ 100 index account for 58.4%, and they have fallen by more than 20% from their 52-week highs, including Rocket Lab, CoreWeave, Arm Holdings, and SpaceX, among others.
• 72 of the constituents in the NASDAQ 100 index account for 71.3%, having fallen by more than 10% from their 52-week highs.