Introduction
The U.S. central bank asked Wall Street a simple question. What scares you most about the financial system? The top answer was AI. The Fed shared the results on Friday in its Financial Stability Report. This report comes out twice a year. It looks at risks to banks, markets and the whole money system. This time, AI came first by a wide margin.
What Happened
The Fed asked 23 market contacts what they worry about. These are people at banks, broker firms and big investment funds. The survey ran in September and October. Out of the 23 people, 87% named AI as a big risk. That is about 20 out of 23 people. In the spring survey, only 50% named AI. In the fall of 2025, it was 30%. So worry about AI has grown fast in one year. The next most named risk was a fall in risky assets, at 52%. Higher long-term interest rates came next at 48%. Cyberattacks and government debt worries tied at 43% each.
Why It Happened
The people surveyed named three AI worries. The first is high stock prices. AI stocks have risen a lot. If company profits disappoint, those prices could fall hard. The second worry is cyberattacks. These could come from hostile countries or from harm caused by powerful AI systems themselves. The third worry is complex AI financing. Companies are borrowing huge sums to build AI. Debt linked to data centres and advanced computing passed $680 billion by October 2026. In all of 2023, that number was only $130 billion. So borrowing has grown more than five times in less than three years. This debt is now about 31% of all big-company borrowing in the U.S. In 2023, it was under 6%.
Why It Matters
A survey is not a forecast. It counts worries, not facts. But worries matter in markets. When many big investors worry about the same thing, they can all sell at once. That is how a small fall can turn into a big one. The Fed did not call AI a bubble. It did not say a crash is coming. It only said the worry is now the biggest one on Wall Street. The report covers data up to October 28. The survey closed before Nvidia’s chief Jensen Huang resigned on November 12. So the latest Nvidia news is not in these numbers.
What Happens Next
All eyes turn to Nvidia’s results on Tuesday. Nvidia is the biggest AI chip maker. Its numbers will test whether AI profits can match the high hopes. Anthropic, a top AI firm, lists its shares on Thursday. These two events will show how strong the AI trade still is. The Fed will run the same survey again in the spring. If AI worry grows again, the debate about a bubble will only get louder.
Final Thoughts
AI has gone from a small worry to the top worry in one year. That does not mean a crash is coming. But it does mean Wall Street is nervous. The next few days will tell us if that nervousness was fair.
Key Figures
Market contacts who named AI a big risk: 87%, up from 50% in the spring. People surveyed: 23 market contacts. Next risks: fall in risky assets 52%, higher long-term rates 48%, cyberattacks 43%. AI-linked debt by October 2026: more than $680 billion, against $130 billion in all of 2023. Share of big-company borrowing: about 31%, up from under 6% in 2023.
Quick Questions
1) What did the Fed survey find about AI? It found that 87% of the 23 market contacts named AI as a big risk to the financial system. That is up from 50% in the spring. 2) Why are people worried about AI? They worry that AI stock prices are too high, that cyberattacks could cause harm, and that firms have borrowed too much to build AI. 3) Does the Fed say a crash is coming? No. The Fed did not call AI a bubble. A survey counts worries. It is not a forecast of what will happen.
Disclaimer: This article is for educational and informational purposes only and does not constitute financial advice. Sources: CNBC, “AI risks are the biggest threat to the financial system, Fed survey finds”, November 13, 2026; Federal Reserve, Financial Stability Report, November 2026.
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