Citadel's Ken Griffin Says GPU Pricing Could "Go Into Freefall" as the AI Trade Turns Discerning, and Calls the Situational Awareness Block a Trade That "Did Okay"
Remarks at the annual Citadel Securities Conference, October 2026, one day after a record-length semiconductor losing streak and two weeks before the US midterms
Ken Griffin, founder and CEO of Citadel, used a wide-ranging conversation at the firm's annual securities conference to frame the recent market turbulence as a research-driven repricing of the AI trade, not a technical event. In his telling, investors who spent two years buying every link in the AI supply chain are now asking harder questions about how long extraordinary margins will last. His comments came after semiconductors posted their longest and largest losing streak since the global financial crisis, and as IPOs have been delayed or pushed back.
The GPU Analogy: Airline Seats and Dark Fiber
The most consequential argument was about the economics of compute. Griffin said the market had been on a thematic program of buying hyperscalers, chip companies and obscure suppliers in Korea, Taiwan and Japan on the premise that hundreds of billions of dollars, or $1 trillion, of data center spending would create chokepoints with abnormally high margins. He said investors are now looking two to three years out and asking how long the pricing power persists, even as they acknowledge that DRAM and other memory products currently earn very high margins where supply is genuinely constrained.
He then drew a pointed comparison to the airline industry. "GPUs, like airlines, have a very low marginal cost to run," he said. "The incremental seat on an airline that's not full, if you can sell that ticket for $20, you're making money on that seat. That's one of the reasons the airline industry is such a nightmare: the moment you have overcapacity, pricing goes into freefall." He tied this to the telecom buildout of 2000, when more fiber was built than demand required. On GPUs, he said, "If we reach a point where the provisioning of GPUs exceeds demand for GPUs, marginal pricing will actually go into freefall. And that really upends all the investment assumptions that people are working with today."
He identified a second concern, the useful life of the chips. Some operators are currently earning extraordinary pricing on GPUs that are 5 or 6 years old, which Griffin said "probably doesn't persist for another 5 or 6 years." As a result, he argued, investors cannot ascribe the same capitalization rate or revenue model to years seven, eight and nine of a chip that they used 12 months ago. Griffin said he did not want to sound "doom and gloom," but he was explicit that this is the central question the market is now working through: how far demand can carry the buildout.
Corporate America Is Auditing Its AI Bills
Griffin also pointed to uneven value extraction among enterprise users of AI. The most sophisticated US companies, he said, are becoming highly selective about where they pay "extremely high pricing" for state-of-the-art models from OpenAI and Anthropic and where they can run open source models at a fraction of the cost. "All of corporate America is looking at their bills from Anthropic and OpenAI and going, okay, we need to make sure we're getting productivity out of this," he said. "In some areas you've got a lot of waste, and people are going to have to pivot around that."
The interviewer noted a Wall Street Journal report that Anthropic's S-1 points to roughly $750 billion of spending to come. She asked whether that conflicts with customers trying to cut costs. Griffin agreed the tension is real. He said the outcome hinges on how indispensable the leading labs make their models, using life sciences as an example. If a model helps unlock treatments for cancer or other life-threatening diseases, he said, customers will "pay any price" for it. "What we don't know is, as these models become more intelligent, how much are they able to demand extremely high pricing," he said. "People don't know the answer to that."
Bubble Within a Transformation
Asked about warnings from Ray Dalio, Howard Marks and the Bank for International Settlements, Griffin conceded that "there are almost certainly bubbles within this moment in time," and said any radical transformation of the economy is generally intertwined with one. He argued, however, that bubbles tend to leave behind game-changing infrastructure, and that the companies on the other side of them become market leaders for decades. He cited his own regret at selling Amazon stock after the dot-com era, and the railroads as another precedent. The message was that the technology can be real and the pricing of parts of the ecosystem can still be wrong.
Situational Awareness: "We Did Okay"
Griffin offered a candid account of Citadel's block purchase of the Situational Awareness portfolio over the summer. He said the fund, as a fiduciary, needed to raise cash, and that Citadel provided a holistic solution that also protected a substantial year-to-date gain for its investors. He noted that other fast-money accounts had likely front-run the anticipated selling, which turns "a possibility into a crystallized reality."
On Citadel's own result, he was measured. Citadel's thesis was that a portfolio acquired in such an environment typically sees a sharp price reversal once confidence is re-established and fear of a forced liquidation passes. "We deployed our capital on the back of that theory, and we did okay," he said. He called it a complicated portfolio to buy overnight. The transaction was completed in under 24 hours, but bringing down the risk profile took several days of trading. He said Citadel's edge is analyzing portfolios and cost-efficiently reducing key risks before paring individual positions.
He was critical of Situational Awareness's risk management, saying the fund "must have had too much leverage in the portfolio at peak" and was caught in "three mid-sized storms": the CME announcement, market chatter about the growth rate of some foundation model companies, and large pension plans reshaping their portfolios at the same moment. Griffin said he would be surprised to see another episode like it soon. He also rejected the market's reflex to blame hedge fund deleveraging, which he said he wants to be "answer number ten on the list." He argued that the explanation absolves analysts of accountability and stops them from asking what other investors, such as Capital Group, Fidelity or Wellington, understand that they do not.
AI, Alpha and the Work Force
On the technology's effect on work, Griffin described a Stanford talk in which he said work that once took Citadel's PhDs and masters-level staff four to six weeks can now be reproduced in a few hours. He said he went home depressed that Friday, seeing both a threat to white-collar jobs and "your competitive moats being filled in by bulldozers," before concluding that the period would be a golden era for entrepreneurs. He said workers in exposed fields such as English-to-German translation have likely already lost their jobs. He added that the US needs reskilling "in a profound way" and that "there's talk about it, there's no action."
He maintained that the core of Citadel's business is fundamental research, which he likened to journalism, and that the narrative is still assembled by people. Trading is how Citadel monetizes that research, and he said it has become the most automated and technologically leveraged part of the firm. The interviewer noted that trading results at Citadel Securities have been setting records, partly on the back of volatility.
Midterms: A Beating for the Republicans
Griffin, a major Republican donor who stressed that he has also backed Democrats such as Barack Obama and Rahm Emanuel, said the party in power "will almost certainly lose one or both" chambers. He described the House as in a "really tough spot" and the Senate as "going to be really close." He called the war with Iran unpopular and said the president has "done a very poor job of explaining why," even though he believes Iran must not have a nuclear weapon. He called the treatment of long-resident, employed illegal immigrants "disgraceful" and argued for a path to legal status short of citizenship. He called the tariff battles with Canada and Europe "a disaster" that was "pro-inflation" and severed supply chains. He credited the administration with closing the border.
He hoped that Trump, if he takes a beating, "doesn't double down" and instead considers what to change to reflect voters' views. Griffin also faulted Republicans for adding to spending and for the tax cuts passed a year and a half ago, which he said the country lacked the fiscal space for after pandemic outlays comparable in GDP terms to those of World War II.
Fiscal Policy and the Bond Market
With the national debt cited at $40 trillion, Griffin said the bond market is "speaking pretty loudly" and telling Congress to put the fiscal house in order, though he believes the only path is growth. He said every talking point from Washington should be about entrepreneurship and productivity. Asked whether policymakers are listening, he answered, "Not yet," and warned that failure to act would bring higher inflation, a weaker dollar and a falling standard of living.
His priorities for growth were pushing allies in Europe to reform their economies, supporting the AI revolution and domestic data center construction, expanding nuclear fission and fusion, batteries and robotics, fixing K-12 education, and reviving a Simpson-Bowles-style up-or-down vote on entitlement reform, including motivating people to work longer. He also called for keeping highly skilled foreign graduates in the US, with "here's your degree, here's your green card."
Democratic Socialism, Pritzker and Mamdani
Griffin said he is "not so worried" about the rise of democratic socialist candidates, calling it a bubble in New York, Illinois, Michigan and California. He pointed to France, where government spending is about 60% of GDP and "the streets are awash in turmoil," as a warning to young Americans. He named Illinois Governor J.B. Pritzker as a politician whose path he fears, recounting that he had offered to publicly support tax increases in exchange for a constitutional amendment on pension reform, and that Pritzker "told me to pound sand." On New York Mayor Zohran Mamdani, he said there is no relationship and that he does not want to be involved in New York politics.
Footprint and Culture
Griffin described Citadel's center of gravity as "somewhere over the middle of the Atlantic Ocean" between London, Miami and New York. He acknowledged that Miami faces housing costs and congestion and that a recent dip in the number of financial professionals there reflects a longer-term trajectory, not a near-term verdict. He said the planned Carnegie Mellon campus in Miami, part of a $3 billion gift, would transform the city. On culture, he reiterated his commitment to in-person work: "Nothing beats a whiteboard and a good debate."