In a recent statement, Jeremy Grantham, a prominent figure in the investment world and co-founder of GMO, delivered a scathing critique of Bitcoin (BTC). Renowned for his foresight in the financial sector, having accurately predicted both the dot-com crash of 2000 and the housing collapse in 2008, Grantham dismissed Bitcoin as “a useless, speculative mechanism.” He anticipates that the cryptocurrency will diminish significantly over the coming decades.
Grantham’s analysis revolves around three primary failures that he believes plague cryptocurrencies, particularly Bitcoin. First, he pointed out that Bitcoin yields no returns, does not exhibit stable value, and lacks practicality as a currency for everyday transactions. This, according to him, underscores Bitcoin’s shortcomings as a legitimate financial instrument.
A particularly sharp critique focused on Bitcoin’s proof-of-work consensus mechanism. Grantham described the vast amount of energy consumed in validating transactions as producing no societal economic benefit, labeling the system as “proof of unnecessary work.” He expressed his belief that this inefficiency renders it fundamentally worthless.
In addition to his commentary on the mining framework, Grantham highlighted Bitcoin’s inadequacies as a practical currency. He argued that everyday businesses do not accept Bitcoin for transactions and that serious investors typically do not conduct major deals using the cryptocurrency. Without a viable transaction infrastructure, he stated, Bitcoin cannot gain monetary legitimacy.
Furthermore, Grantham challenged Bitcoin’s role as a store of value. Unlike traditional equities, which offer dividends and generate cash flow, Bitcoin presents speculators with no basis to determine a fair price. This fundamental lack of yield means that investors have little to anchor their expectations.
Grantham’s perspectives are notable due to his history of accurate market forecasting. He has cautioned about bubbles in the past, including his views on the current state of AI-driven stocks, which he suggests could experience a decline of up to 70%. However, he has also faced criticism for his timing; his 2021 predictions regarding a stock market bubble did not materialize immediately, as markets continued to rise before a correction occurred in 2022.
These comments come at a time when Bitcoin’s value has significantly decreased, trading around $60,500, a stark decline from its peak above $126,000 in late 2025. The trend is further exacerbated by a reported $6.35 billion in outflows from US spot Bitcoin ETFs within a 30-day period through mid-June, indicating weakened institutional interest.
Coinbase’s CEO has also touched upon the influence of rising AI infrastructure costs on cryptocurrency market dynamics. As the debate over Bitcoin’s viability continues, the current price’s sustainability in the third quarter of 2026 will serve as a litmus test for both skeptics and proponents of the digital currency.
Grantham’s forecasts reflect a broader skepticism in the investment community, echoed by figures like Peter Schiff, who has similarly criticized Bitcoin for lacking intrinsic value. Whether Bitcoin can navigate these challenges and regain favor remains an open question as it stands at a critical juncture in its market trajectory.
