Alphabet shares plunge about 12% in worst day since 2004 listing, wiping roughly $500 billion off Google's parent
Alphabet fell about 12% on Thursday after results showed $51.4 billion of AI spending pushed free cash flow negative, erasing about $500 billion and dragging the Nasdaq lower.
At a glance
- Alphabet shares fell about 12% to 13% on Thursday, October 29, 2026, the steepest one-day drop since Google listed in August 2004.
- The fall erased roughly $500 billion of market value, the biggest one-day loss in the company's history and among the largest ever for a US company.
- Investors focused on $51.4 billion of quarterly capital spending, more than double a year earlier, which pushed free cash flow to about minus $9.1 billion.
- Earnings of $2.12 a share missed the roughly $3.02 analysts expected, mainly because of a paper loss on equity investments; revenue still rose 25% and Google Cloud sales more than doubled.
- The Nasdaq fell about 1.5% and the S&P 500 about 0.5%, while small-company stocks rose.
Shares of Alphabet, Google's parent company, fell about 12% on Thursday, October 29, 2026, their worst day since the company listed on the stock market in August 2004. The drop wiped roughly $500 billion off Alphabet's market value in a single session, after third-quarter results showed that spending on artificial-intelligence data centres had pushed the company's free cash flow below zero.
The selling started in after-hours trade on Wednesday, when the results came out, and deepened through Thursday. Reported falls ranged from 11.8% to about 13% at different points in the day.
What spooked investors
Alphabet's sales were strong. Revenue rose 25% to $127.6 billion in July–September, and Google Cloud revenue more than doubled to $30.7 billion. But three numbers worried the market:
| Measure (Q3 2026) | Result | What investors expected or compared |
|---|---|---|
| Capital spending | $51.4 billion | $23.95 billion a year earlier |
| Free cash flow | about –$9.1 billion | positive in previous years |
| Earnings per share | $2.12 | about $3.02 forecast |
| Revenue | $127.6 billion (+25%) | in line with forecasts |
| Google Cloud revenue | $30.7 billion (+103%) | well ahead |
| Full-year 2026 capex guidance | $195–205 billion | unchanged |
The earnings miss was mostly caused by a paper loss of more than $8 billion on Alphabet's stakes in other companies, which does not affect the day-to-day business. The bigger concern for investors was cash. For years Alphabet produced tens of billions of dollars of spare cash every quarter. In this quarter the bill for chips, servers and data centres was larger than the cash the business brought in.
Some analysts also pointed to slightly slower growth in Google Search and other advertising, which were a little below forecasts.
A $500 billion day in context
A loss of around $500 billion is the largest one-day fall in value Alphabet has ever suffered, well above its previous record loss in July 2026. It ranks among the biggest single-day losses for any US company, behind the roughly $589 billion that chipmaker Nvidia lost in one day in January 2025, when investors feared cheaper Chinese AI models.
How the rest of the market moved
Because Alphabet is one of the largest companies in the US indexes, its fall pulled them down. The Nasdaq Composite fell about 1.5% and the S&P 500 about 0.5%, while the Dow Jones Industrial Average lost about 0.5%. Smaller companies did better: the Russell 2000 index of small caps rose about 1.2%, as investors moved money away from the biggest tech names.
Other AI cloud stocks also fell. Shares of Oracle and the AI cloud provider Nebius dropped about 3%, and the network company Fastly about 6%, on worries that big tech companies will start spending more carefully on AI.
The sell-off came a day after Microsoft reported that its Azure cloud revenue grew 48% and said it would keep spending heavily on AI. Investors are now judging each company on whether its AI spending is turning into profits fast enough.
What it means for ordinary investors
Alphabet is one of the largest holdings in many index funds, pension funds and retirement accounts in the US and abroad, so a fall of this size touches millions of savers who never bought the stock directly. Pakistani and other overseas investors who hold US index funds or global tech funds will also see the drop in their balances.
For Google users and advertisers, nothing changes immediately. Alphabet has not announced any cut in spending and kept its full-year capital spending forecast unchanged, a sign it intends to keep building AI capacity.
What comes next
Amazon reports its third-quarter results after the market closes on Thursday in New York — early on Friday in Pakistan — and its cloud unit AWS will show whether the jitters about AI spending spread further. Alphabet's next results are due in late January 2027, when it is also expected to give its first capital spending forecast for 2027.
Questions people are asking
Why did Alphabet stock fall on October 29, 2026?
Investors reacted to third-quarter results that showed capital spending on AI data centres of $51.4 billion, which turned free cash flow negative, and earnings per share of $2.12, well below forecasts of about $3. Signs of slower search growth added to the selling.
How much value did Alphabet lose?
The roughly 12% fall wiped out about $500 billion of market value in a single session, the largest one-day loss in Alphabet's history.
