Full Breakdown
Jeremy Grantham Predicts Bitcoin Will Fade “With a Whimper”
6/27/2026, 8:43:57 PM
Grantham’s Forecast and Rationale
On CNBC’s “Squawk Box,” GMO co-founder Jeremy Grantham warned that Bitcoin will “dwindle away… not with a bang, but a whimper.” He called the cryptocurrency a “useless, speculative” asset lacking intrinsic value, unsuitable as a stable store of wealth or medium of exchange. Grantham cited price volatility, including a halving that occurred without clear economic cause, arguing Bitcoin cannot serve as a reliable store of value.
Background, Track Record, and Recent Numbers
Grantham, who warned of the 2000 dot-com bubble and the 2008 housing crisis, has criticized Bitcoin since 2017. The cryptocurrency has endured three bear markets, each wiping out about 70 % of its peak. In late June 2026 it traded below $60,000, roughly 52 % below its October 2025 high. The most recent halving, which cut the block reward in half, occurred in a “strong economy,” a point Grantham cites to illustrate Bitcoin’s instability.
Official Statements & Responses
Grantham’s remarks were framed as a rejection of Bitcoin’s utility and a long-term decline forecast. JPMorgan analysts, however, have modeled a “fair value” for Bitcoin as digital gold, and institutions such as BlackRock, Fidelity and MicroStrategy have launched or expanded spot-ETF products and balance-sheet holdings. Hedge-fund manager Paul Tudor Jones and others still view Bitcoin as an inflation hedge, highlighting the divide between traditional-finance skeptics and crypto supporters.
Criticism & Opposition
Proponents point to Bitcoin’s fixed 21 million-coin supply, decentralized network and rising corporate adoption. Institutional milestones—multiple spot-ETF launches and corporate treasury allocations—are cited as foundations for price stability and long-term relevance. JPMorgan analysts and others argue that scarcity and network effects give Bitcoin a “digital-gold” value proposition that Grantham’s utility-focused critique overlooks.
Why It Matters
Grantham’s reputation gives his bearish outlook weight with pension funds, endowments and other investors. If his “whimper” scenario gains traction, it could curb institutional inflows, shape regulatory attitudes and shift market sentiment. Conversely, ongoing adoption by major financial firms may sustain confidence among investors who view Bitcoin as an inflation hedge.
Verbatim Quotes
- “Over years and years, decades and decades, it will dwindle away, I suspect — not with a bang, but a whimper,” — Jeremy Grantham, GMO co-founder
- “It's not a stable form of value — it just halved … for no particular reason in a strong economy, so you can't depend on it in that way.” — Jeremy Grantham, GMO co-founder
- “People don't use it to make serious trades, they don't use it to buy their dinner and pay at the supermarket. … What it does is allows crooks to move money around,” — Jeremy Grantham, GMO co-founder
- “Proof of unnecessary work shouldn't be worth a bucket of warm spit, and it will not be,” — Jeremy Grantham, GMO co-founder
