Key Takeaways:
- Dimon says market leverage is "quite high," raising turbulence odds
- AI Token-related spending "will be controlled," cooling tech momentum
- JPMorgan nears $1 trillion value as shares rise to $359.24
Key Takeaways:

JPMorgan Chase & Co. Chief Executive Officer Jamie Dimon said market leverage is "quite high," warning that higher leverage raises the probability of market turbulence, as the largest U.S. bank closes in on a $1 trillion market value.
"The higher the market leverage, the greater the probability of market turbulence," Dimon said, according to CNBC.
Dimon also said AI Token-related spending "will be controlled," a comment that could temper momentum in AI-exposed technology stocks after a stretch of heavy capital outlays across the sector. JPMorgan shares rose 0.48 percent to $359.24, giving the bank a market capitalization of roughly $950 billion, according to Seeking Alpha data.
The warning arrives as Dimon separately champions an expansion of the Alliance for Critical Infrastructure, a cross-industry group JPMorgan helped found alongside Mastercard and Berkshire Hathaway Energy, to address risks posed by artificial intelligence. More than 40 companies spanning financial services, energy, water, utilities, telecommunications, airlines and railroads have been approached, with outreach starting in July, Reuters reported, citing two people familiar with the matter.
The revamped group aims to develop a shared understanding of how AI is being used, the risks it poses and the safeguards needed, and to work with the Trump administration on those issues. Recent cyberattacks on water systems in Minnesota and other states have increased the need for information sharing across industries, the sources said. The group aims to be fully functional by year-end.
Dimon has been among a small group of chief executives publicly warning about advanced AI systems. He said in July that access to Anthropic's Mythos AI model must be controlled, telling Reuters that "you're giving ballistic missiles to individuals with Mythos." The U.S. government in July launched the Gold Eagle initiative, bringing together AI developers, critical infrastructure operators and federal agencies to share information on vulnerabilities discovered by advanced AI models.
For investors, Dimon's leverage warning signals a potential pullback in risk appetite across equities, while his comment on AI spending suggests the pace of capital deployment into AI infrastructure may slow. As head of the largest U.S. bank, his views carry weight in shaping institutional positioning, and any cooling in AI investment could pressure the technology names that have driven much of the market's recent gains.
This article is for informational purposes only and does not constitute investment advice.