TL;DR
- On November 5, 2026, the S&P 500 fell 4.4%, its worst day since April 2025, as investors dumped AI and chip stocks. The Nasdaq fell 5.5% and is in a correction.
- A sharp drop isn’t the same as a crash: the S&P 500’s distance from its record is shown live below. A fall of 10% is a correction and 20% is a bear market.
- Big one-day falls have often been followed by big bounces, in both directions, so selling in a panic is a common and costly mistake.
- LemonTrades tells you why the market is moving as it moves, with the likely cause, so you’re not guessing.
When stocks drop hard, everyone asks the same thing. Here’s the live answer and what’s behind the move. We last updated the story on November 6, 2026.
What happened in November 2026
- November 5: the S&P 500 closed down 4.36% at 7,353.73, the Nasdaq Composite fell 5.52%, and the Dow lost more than 1,800 points. All 11 S&P 500 sectors fell.
- The cause: fear that spending on AI data centers will slow. Nvidia fell 9.3%, and the seven biggest tech stocks lost about $1 trillion in a day.
- The backdrop: the Nasdaq is more than 10% below its October record, the Fed raised rates in September, and the 10-year yield is high.
- It wasn’t only down: the day before was the market’s best in about three months.
Today’s reasons, updated through the day: why is the stock market going down today?.
Crash, correction or dip?
| Term | What it means |
|---|---|
| Pullback | Down about 5% from a recent high |
| Correction | Down 10% or more |
| Bear market | Down 20% or more |
| Crash | No official definition: a sudden, deep fall, often 10% or more within days |
How real crashes compare
| Event | S&P 500 fall |
|---|---|
| Black Monday, October 19, 1987 | −20.5% in one day |
| Dot-com bust, 2000–2002 | −49% |
| Financial crisis, 2007–2009 | −57% |
| Pandemic, February to March 2020 | −34% in about a month |
| 2022 rate hikes | −25% |
| Tariff shock, April 2025 | −12% in four days |
What to do when the market drops
- Find out why. A fall caused by one group of stocks differs from a fall on recession fears.
- Check your time horizon. Money you need within a few years shouldn’t be in stocks anyway.
- Avoid selling in a panic. Some of the market’s best days come right after its worst.
- If you trade, cut your size. Moves are bigger and spreads wider on days like these.
Is the economy behind it? See is America in a recession?; third-quarter GDP grew 3.4%. Why Nvidia matters so much: Nvidia stock plunge: the reasons.
Sources
- Yahoo Finance: Dow plunges 1,800 points, Nasdaq enters a correction
- CNBC: Magnificent 7 loses $1 trillion
- Schwab: Stocks plunge on AI fears
Education, not financial advice. See our disclaimer.

