Legendary investor Jeremy Grantham, co-founder of asset management firm GMO, has once again spoken out against Bitcoin, calling it a 'useless, speculative mechanism' destined for a gradual decline into irrelevance. In a recent interview on CNBC's Squawk Box, Grantham predicted that Bitcoin will 'dwindle away, I suspect — not with a bang, but a whimper.' This statement comes as Bitcoin's value has shed more than 50% since its all-time high near $126,000 in October 2025.
Grantham's critique of Bitcoin is rooted in its instability, citing its tendency to halve in value without any particular reason, even in a strong economy. He also pointed to the coin's lack of deliverance as a store of value, contrasting it with gold, which has provided solid gains over the same period. The current drawdown is among the 5th worst in Bitcoin's history, testing the resolve of long-term holders.
However, not all investors share Grantham's pessimistic view. Mexican billionaire Ricardo Salinas Pliego has placed 70% of his investment portfolio into BTC, up from just 10% in 2020. He views Bitcoin as superior to both cash and gold due to its unseizable and borderless nature. Despite facing regulatory pushback and market cycles, Salinas Pliego remains convinced of Bitcoin's potential, urging ordinary investors to convert their home equity into BTC exposure.
The market reaction to Bitcoin's decline has been mixed. While some institutional buyers are treating the dip as an entry point, with Coinbase reporting major institutions stepping in to buy the crash, others are more cautious. U.S. spot BTC ETFs posted four consecutive days of net outflows totaling around $113.8 million, and Bitcoin's attempt to reclaim higher ground was met with resistance, triggering a roughly 30% decline.
The implications of Bitcoin's decline extend beyond the cryptocurrency market. As technology-driven automation and workflow transformation continue to shape the finance industry, the role of Bitcoin and other cryptocurrencies will be crucial in determining the future of digital transactions. Whether Bitcoin will indeed 'dwindle away' or find a way to reclaim its value remains to be seen, but one thing is certain – the cryptocurrency's fate will have significant implications for investors, institutions, and the broader economy.