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Veteran Investor Predicts 70% Stock Market Collapse Within Months or Years

Diary of a CEO · Billionaire's WARNING: I'm SELLING. The Crash Is Already Here! · June 25, 2026
Veteran Investor Predicts 70% Stock Market Collapse Within Months or Years
Diary of a CEO
Diary of a CEO
Billionaire's WARNING: I'm SELLING. The Crash Is Already Here!
"From these unprecedented levels, a 70% decline would not be unexpected. The tech bubble, the NASDAQ, which is an index of the growth stocks came down 82%. We're in the biggest investment bubble that arguably has ever occurred."
Jeremy Grantham, who managed $165 billion at his firm's peak, warned that US equities are in the largest bubble in American history and could decline 70% in the near term. He cited extreme valuations and euphoria indicators like SpaceX's prospectus, comparing current conditions to the 1929 crash and Japan's 1989 bubble that took 35 years to recover from.

About this episode

In this episode, host Steven Bartlett interviewed Jeremy Grantham, the 87-year-old co-founder of GMO who managed up to $165 billion and has given away over 90% of his wealth to environmental causes. The conversation opened with Grantham delivering stark warnings about US equity markets, calling current valuations the largest bubble in American history and predicting a 70% collapse in the near term. He advised listeners to sell US stocks entirely and diversify into non-US equities, bonds, and precious metals, revealing that major investment firms systematically refuse to warn clients about overpriced markets because it destroys their business model. Grantham recounted how his own firm lost half its clients for being early on the 2000 tech bubble warning. The discussion then pivoted to societal issues, with Grantham presenting alarming data on male fertility collapse, citing peer-reviewed research showing sperm counts declining 2.5% annually and projected to hit zero by 2045 due to endocrine-disrupting chemicals in plastics, pesticides, and consumer products. He detailed how the US permits 85 agricultural pesticides banned in Europe and has restricted only 11 cosmetic chemicals versus 1,300 in the EU. Grantham argued this toxic environment, combined with extreme wealth inequality, is destroying America's social contract, pointing to maternal mortality rates 10 times higher than Norway as evidence. He advised pregnant women to eliminate cosmetics and eat organic produce, claiming Harvard studies showed fertility doubled with dietary changes alone. The episode concluded with Grantham suggesting Americans consider relocating to countries with stronger social safety nets like Denmark or Germany, and expressing his desire to write a book on toxicity and family policy that could spark change similar to Rachel Carson's Silent Spring.

Key takeaways

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