Ray Dalio Warns AI Market Bubble Resembles 1929 and Dot-Com Era

Ray Dalio, the billionaire founder of Bridgewater Associates, issued one of his strongest warnings yet about the current market environment during an appearance on The Diary of a CEO podcast with host Steven Bartlett.

Bridgewater Associates founder Ray Dalio has discussed artificial intelligence and financial market risks during a podcast interview.

Dalio argued that enthusiasm surrounding artificial intelligence has pushed financial markets into bubble territory reminiscent of 1929 and the dot-com boom of 2000, Nick Lichtenberg reported for Yahoo Finance.

His warning comes as investors prepare to test that thesis in real time.

SpaceX has completed what was reported as the largest initial public offering (IPO) on record, while Anthropic and OpenAI are reportedly moving toward trillion-dollar valuations—developments that market historians often view as signs of speculative excess.

Bartlett referenced an earlier interview with investor Jeremy Grantham, who said markets are facing "the biggest investment bubble in American history." Dalio agreed. "He's right," Dalio said.

Acadian Asset Management's Owen Lamont has described four conditions that suggest markets may be in bubble territory, which he calls the "Four Horsemen of the Bubble Apocalypse": extreme overvaluation, widespread "bubble beliefs" (investors who acknowledge prices are too high but expect them to keep rising), a surge in equity issuance, and a flood of new market participants.

Dalio's assessment is consistent with Grantham's long record of identifying asset bubbles.

The GMO co-founder warned of Japan's asset bubble before its collapse in the early 1990s and the dot-com bubble before it burst. In a Fortune article published in September 2007, Grantham also described the U.S. housing market as being in "genuine bubble territory" months before the global financial crisis.

Speaking to Fortune in April about his memoir, The Making of a Permabear, Grantham described today's AI-driven market as a "bubble within a bubble."