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OpenAI's Revenue Is $20 Billion Lower Than Investors Thought, and AI Stocks Had Their Worst Day in Two Months
- The Financial Times reported that OpenAI told investors its annualized revenue was nearing $50 billion at the end of September. Earlier reports put it near $70 billion.
- The gap comes from how revenue is counted. The higher figure included money that goes to OpenAI's partners. The lower one is what OpenAI keeps.
- On October 8, 2026, the Nasdaq fell 1.25% to 27,193, its worst day since mid-August. The S&P 500 fell 0.47%.
- CoreWeave fell 8%, Oracle 5.5%, Intel 5.3%, Micron 4.8%, AMD and Broadcom about 4%, and Nvidia 2.9%.
- OpenAI's revenue is still growing fast: its run rate rose 77% in the third quarter.
What the report said
On Thursday, October 8, the Financial Times reported on a note OpenAI sent to investors. It said the company's annualized revenue was nearing $50 billion at the end of September.
For about two months, the figure widely repeated in the press had been close to $70 billion.
That's a $20 billion gap. Stocks tied to AI sold off within hours.
Did OpenAI lose $20 billion?
No. The business didn't change. The way of counting did.
- The $70 billion figure was gross revenue. It included money that passes through OpenAI to its partners.
- The $50 billion figure is net revenue. It's what OpenAI keeps.
Investors had been using the bigger number to line OpenAI up against its rival Anthropic, which reports its numbers differently.
Think of a food delivery app. If customers order $100 of food, the app might report $100 of "sales." But it only keeps the $20 delivery fee. Both numbers are real. Only one tells you what the company earned.
Even at $50 billion, OpenAI is growing fast. It said its run rate grew 77% in the third quarter and its business-customer revenue grew 107%.
Why the market cared anyway
OpenAI has promised to spend enormous sums on computing power. Other companies have borrowed and built on the strength of those promises.
If OpenAI brings in $50 billion a year, not $70 billion, it has less money to keep those promises. That worry spread to everyone further down the chain.
| Stock | Move on October 8 | Link to OpenAI |
|---|---|---|
| CoreWeave | -8.0% | Rents data centre capacity to OpenAI |
| Oracle | -5.5% | Holds very large OpenAI contracts |
| Intel | -5.3% | Chipmaker |
| Super Micro Computer | about -5% | Builds AI servers |
| Micron | -4.8% | Memory chips |
| AMD | -3.9% | AI chips |
| Broadcom | about -4% | Custom AI chips |
| Nvidia | -2.9% | AI chips |
The Nasdaq fell 1.25% to 27,193.34. That's its biggest one-day drop since mid-August. The S&P 500 fell 0.47% to 7,765.36. The Dow, which has fewer tech stocks, rose 0.1%.
Most stocks in the S&P 500 actually went up that day. Technology dragged the index down.
It wasn't only OpenAI
Two other things made investors jumpy:
- The 10-year Treasury yield is above 5.2%, after touching 5.35% the day before.
- Oil jumped back above $104 a barrel.
High interest rates hit fast-growing tech companies hardest, because most of their profits are far in the future.
The bigger question
The AI boom rests on a chain: tech giants spend hundreds of billions on chips and data centres, because they expect AI companies to earn hundreds of billions from customers.
Spending is certain. It's already happening. Revenue is the open question. Any news that revenue is smaller than believed shakes the whole chain.
OpenAI has also pushed its planned stock market listing from 2026 to 2027. We explain the money flows in who pays for the AI boom and circular financing.
What it means for you
If you own an S&P 500 or total market fund: technology is roughly a third of the index. You felt this, but the fund fell less than half a percent. That's a normal day.
If you own a Nasdaq 100 fund such as QQQ: you're more concentrated in these names, so the swings are bigger both ways.
If you own individual AI stocks: look at how much of the company's future depends on one customer. That was the difference between falling 8% and falling 3%.
If you're wondering whether to sell: a headline about how revenue is counted isn't a reason to change a long-term plan. If a 1% drop in the Nasdaq makes you anxious, that's worth knowing. It may mean you hold more tech than you're comfortable with. Check with our guide on how much AI you already own.
What to watch
- Big tech earnings in late October. Listen for any change in data centre spending plans.
- Oracle and CoreWeave updates on their OpenAI contracts.
- AI company listings. Public filings will finally show audited numbers.
Frequently asked questions
What is OpenAI's revenue in 2026?
According to a Financial Times report on October 8, 2026, OpenAI told investors its annualized revenue was nearing $50 billion at the end of September. Annualized means the latest monthly pace multiplied by twelve. OpenAI recorded about $13 billion in revenue for all of 2025.
Why was the earlier OpenAI revenue figure $70 billion?
The earlier figure of roughly $68 billion to $70 billion reportedly counted gross revenue, including the share that goes to OpenAI's partners. The $50 billion figure is net revenue, the amount OpenAI keeps. Investors had used the gross number to compare OpenAI with its rival Anthropic.
Why did AI stocks fall on October 8, 2026?
The report raised doubts about whether AI companies will earn enough to pay for the data centres being built for them. Stocks tied to that spending fell hardest. Rising Treasury yields and oil above $100 a barrel added to the selling.
Why did Oracle and CoreWeave fall more than Nvidia?
Both have very large contracts to supply computing power to OpenAI, and both have borrowed heavily to build data centres for it. If OpenAI has less revenue than thought, investors worry more about whether those contracts will be paid in full.
Is the AI bubble bursting?
One bad day does not answer that. OpenAI's revenue is still growing quickly, and the Nasdaq had set a record earlier in the week. What the day showed is how sensitive AI stocks are to any sign that revenue will fall short of the spending.
Primary sources
- Investing.com — OpenAI annualized revenue at $50bn, far below reports: FT (Oct. 8, 2026)
- SiliconANGLE — AI stocks crumble on report that OpenAI's annualized revenue is much lower than believed (Oct. 8, 2026)
- Kiplinger — Nasdaq sinks as OpenAI revenue woes weigh on tech stocks (Oct. 8, 2026)
- CNN — Tech stocks drop after report that OpenAI's revenue is lower than expected (Oct. 8, 2026)
Data & disclaimer: This article is for educational purposes only and is not financial or investment advice. Figures reflect data available as of Oct 9, 2026, and conditions change — always confirm current pricing, rates and rules with the provider before you act. Written by Elizabeta Dimoska. See our editorial standards and disclosure.
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