The AI Boom Has Reached Its Most Uncomfortable Moment
Nvidia's leadership crisis exposes a deeper market vulnerability
Wall Street started the week looking for reasons to buy technology stocks again. By Thursday, investors were weighing a harder question. How much of the AI boom rests on the confidence, financing and leadership of a small group of companies?
The immediate shock came from Nvidia. Yesterday, co-founder Jensen Huang resigned as chief executive and board member after disclosures about his personal conduct and a reported relationship that raised national security concerns. Nvidia appointed long serving finance chief Colette Kress as interim CEO and began looking for a permanent successor.
Investors reacted quickly. Nvidia fell nearly 12% at one point on Thursday before recovering to close down 4.3%. The NAS100 slipped 0.10%, and the SPX500 lost 0.26%. AI infrastructure providers fared worse. Nebius dropped 16.8%, while CoreWeave fell 6.9%.
The setback followed a strong start to the week. On Monday, the SPX500 gained 2.38% and the NAS100 rose 3.63% as lower oil prices eased inflation concerns. Technology stocks rallied again on Wednesday, lifting the NAS100 1.97%. Huang's departure quickly changed the mood.
His exit matters because Nvidia has become more than a chip supplier. It provides processors at the centre of the AI build out, helps finance some infrastructure customers and has helped set expectations for the industry. Investors now have to reassess relationships and future commitments they had treated as reliable.
There is a geopolitical risk as well. Huang had argued for keeping access to China's semiconductor market. His departure could add momentum to efforts in Washington to restrict advanced chip exports. Proposed legislation, however, is not the same as a restriction already in force.
Inflation has raised the stakes
Tuesday's US inflation report added another complication. Consumer prices rose 0.4% in October, above the 0.3% expected, while core inflation increased 0.3%. The Bureau of Labor Statistics could not publish most annual comparisons because the October 2025 government shutdown prevented it from collecting the data needed.
Bond yields rose after the report. The two-year Treasury yield jumped about 15 basis points to 4.69%, and the 10-year yield reached 4.96%. Earlier today, during Asian trading, the 10-year yield had climbed to about 5.14%. Markets were fully pricing in a Federal Reserve increase of at least 25 basis points in December.
That is a difficult backdrop for technology valuations. Higher rates reduce the present value of future earnings. They also make borrowing more expensive, raising the return that infrastructure projects need to deliver.
Oil offered some relief, though the outlook remained uncertain. UKOil traded around $96 a barrel earlier and was heading for a second consecutive weekly decline, despite tensions involving Iran and attacks on regional energy infrastructure. Cheaper oil can ease inflation pressure, but the conflict still poses a risk to supply.
Even stronger economic activity may not settle the debate. Britain's economy expanded 0.7% in the third quarter, partly supported by technology related activity. That strength has added to expectations that central banks may need to keep monetary policy restrictive.
Investors are separating demand from returns
The clearest warning came from the companies building AI infrastructure.
CoreWeave reported third quarter revenue growth of almost 170% to $3.66 billion, with a contracted revenue backlog of $132.5 billion. But it also had about $46.9 billion in debt and spent $14.5 billion on capital expenditure during the quarter. Management expects adjusted profitability in the first half of 2028.
Nebius showed how quickly strong demand can meet practical limits. Construction delays forced the company to cut its 2026 revenue forecast to between $3 billion and $3.2 billion. It expects to spend between $40 billion and $45 billion in 2027, relying heavily on customer prepayments and asset backed financing.
The distinction is important. A large backlog shows that customers want capacity. It does not guarantee that the resulting revenue will arrive quickly enough to cover the cost of building it.
Confidence in AI has not vanished. Anthropic is pursuing a flotation that could value the company at $1.4 trillion on a fully diluted basis. Bloomberg reported that demand for the offering was about six times the shares available, though allocations and final terms remain uncertain.
Over the next six to 24 months, investors will be watching capital expenditure against operating cash flow, refinancing costs, capacity utilisation and whether contracted revenue turns into lasting profits. Nvidia's earnings on 17 November and Anthropic's anticipated market debut on 19 November will provide early tests.
The bullish case is still intact. Demand for computing is growing rapidly, and successful AI adoption could lift productivity. But higher interest rates, regulatory uncertainty and tighter financing conditions have made the path to those returns harder to predict.
This week did not diminish AI's technological promise. It showed how much investor confidence depends on uninterrupted spending, steady leadership and ready access to capital.
The next phase may hinge less on how quickly companies can add computing capacity and more on whether the returns can justify the cost.
Sources and references
Russell Shor
Senior Market Strategist
Russell Shor is a Senior Market Strategist at FXCM, having been promoted to the role in 2025 in recognition of his depth of insight and consistent delivery of high-impact market analysis. He originally joined FXCM in October 2017 as a Senior Market Specialist.
Russell holds an Honours Degree in Economics from the University of South Africa, is a certified FMVA®, and a full member of the Society of Technical Analysts (UK). With over 20 years of experience in financial markets, his work is renowned for its clarity, precision, and strategic value across asset classes.
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