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Billionaire investor Jeremy Grantham on crypto: A useless, speculative mechanism

Reported by Cnbc
Jun 26, 2026· 2 min read
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Key Takeaways
  • • Jeremy Grantham, GMO co-founder and veteran investment strategist, characterized cryptocurrency as "a useless, speculative mechanism" during a CNBC appearance, reinforcing his skeptical stance on digital assets.
  • • Grantham's critique reflects a broader institutional investor concern about speculative excess in asset classes lacking fundamental utility or cash-flow generation capacity.
  • • The commentary positions cryptocurrency outside the framework of productive investments, distinguishing it from technology sectors where Grantham acknowledges genuine innovation despite valuation risks.
Summary
Jeremy Grantham, co-founder of Grantham, Mayo, & Van Otterloo (GMO), a firm that has managed up to $165 billion in assets, dismissed cryptocurrency as fundamentally valueless on CNBC's "Squawk Box," describing it as a "useless, speculative mechanism." The characterization reflects Grantham's long-standing skepticism toward digital assets and his emphasis on distinguishing between transformative technology and speculative excess.

Grantham's critique carries institutional weight given his track record as a long-term investment strategist and his historical role in pioneering index fund development. His position aligns with traditional value-investing frameworks that prioritize tangible cash flows, productive assets, and fundamental business economics—metrics by which cryptocurrency fails to register meaningful utility beyond speculative trading.

The billionaire investor has consistently articulated concerns about conflating technological importance with investment safety, a principle that extends to his evaluation of cryptocurrency relative to other emerging sectors. This distinction underscores a recurring theme in institutional investor discourse: powerful ideas and genuine innovation do not automatically translate into prudent capital allocation at prevailing valuations. Grantham's comments reflect the skepticism of a seasoned investor who has witnessed speculative manias across multiple asset classes and market cycles, positioning cryptocurrency within that historical pattern rather than as a unique investment opportunity.

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Sources

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Cnbc Billionaire investor Jeremy Grantham on crypto: A useless, speculative mechanism