Jeremy Grantham
Co-founder of the asset management firm GMO, Grantham is one of the most decorated bubble-spotters in finance, having correctly flagged the dot-com crash, the 2008 housing collapse, and the 2022 growth-stock selloff before they happened.
Circuit updated July 13, 2026
- Jeremy Grantham says investors should wish SpaceX fails because success would supercharge AI robots
“You know, one of the scary things about SpaceX is you should wish that it not work out” 1:30
- Jeremy Grantham says median male sperm count will hit zero by 2045
“The decline rate this year is 2 and a half percent a year. You don't have to be mathematically that literate to realize that a 2.5% decline in your sperm count every year is a disastrous level, a nonsustainable level.” 3:44
- Jeremy Grantham says US stocks may not recover for 20 years and Wall Street knows it
“The engine room who worked for them, the guys doing the analysis, doing the work, all believed in data that guaranteed a major bare market, which happened. But the people who employed them or represented them from a marketing point of view were on the podium with me saying, 'Oh, Jeremy, Jeremy, don't get excited. We'll muddle through quite nicely.' It was a huge betrayal of trust, if you wanted to put it that way.” 14:32
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“The engine room who worked for them, the guys doing the analysis, doing the work, all believed in data that guaranteed a major bare market, which happened. But the people who employed them or represented them from a marketing point of view were on the podium with me saying, 'Oh, Jeremy, Jeremy, don't get excited. We'll muddle through quite nicely.' It was a huge betrayal of trust, if you wanted to put it that way.”
Jeremy Grantham · The Diary of a CEO -
“The decline rate this year is 2 and a half percent a year. You don't have to be mathematically that literate to realize that a 2.5% decline in your sperm count every year is a disastrous level, a nonsustainable level.”
Jeremy Grantham · The Diary of a CEO -
“You will not receive the advice from investment advisors to get your tail out of the market ever. It is not good business for them to do that and they will not ever say it to you.”
Jeremy Grantham · The Diary of a CEO -
“SpaceX is such a fabulous BS story, mining asteroids. Huge, incredible success of AI. It's the classic description of a market peak.”
Jeremy Grantham · The Diary of a CEO -
“I think um it will fail to deliver anything like its promises in the prospectus. Yes, absolutely.”
Jeremy Grantham · The Diary of a CEO -
“You know, one of the scary things about SpaceX is you should wish that it not work out”
Jeremy Grantham · The Diary of a CEO
Jeremy Grantham says investors should wish SpaceX fails because success would supercharge AI robots
The billionaire investor gives Steven Bartlett the rare anti-hype SpaceX take, then tells him his own stake may be sitting on a bubble story.
Jeremy Grantham says median male sperm count will hit zero by 2045
The billionaire fund manager behind GMO has spent decades tracking civilizational collapse, and he thinks the most urgent one fits in a test tube.
Jeremy Grantham says US stocks may not recover for 20 years and Wall Street knows it
The veteran investor who called the 2000 and 2008 crashes says a 70% decline in US tech stocks would not be unexpected, and your financial advisor will never warn you.