Former hedge fund manager and CNBC host Jim Cramer said he plans to sell all his Bitcoin, pointing to fears about the future impact of quantum computing. On a recent episode of Mad Money, Cramer told viewers he would dispose of his holdings after IBM CEO Arvind Krishna warned on the program that quantum advances could pose a threat to cryptocurrencies within the next three to four years.
Bitcoin traded higher in the session, up roughly 1.6–1.7% and hovering above $63,500, according to price charts, though the coin remains down about 27% year-to-date. Some crypto participants greeted Cramer’s announcement with amusement, invoking the longstanding “inverse Cramer” meme and investment approach — buying when Cramer says sell. Several traders on social platforms said they view his sell calls as contrarian buy signals.
At the same time, on-chain and market data show signs of diminished liquidity. Blockchain analytics group Lookonchain reported that a large wallet known as bc1qpt moved its full holdings of roughly 16,400 BTC — about $1 billion at current prices — to a new address after seven months of inactivity. Crypto intelligence firm Kaiko, shared by the Kobeissi Letter, found that daily trading across the top 44 spot exchanges fell to about $15 billion last week, the lowest level seen in 2026 and roughly a 70% drop from January peak levels.
Analysts warned that falling exchange volume could signal dryer market conditions and reduced liquidity, which can amplify price moves when large holders transact.
Industry views differ over how imminent a quantum threat to Bitcoin actually is. Blockstream CEO Adam Back has argued that practical quantum attacks against Bitcoin’s cryptography are not a meaningful risk for decades — often cited as 20 to 40 years. By contrast, a Bernstein research note suggested Bitcoin has roughly three to five years to prepare for a post-quantum security upgrade.
Lacie Zhang, a research analyst at Bitget Wallet, told reporters that Back’s longer timeline is the more measured assessment, and that a practical quantum capability able to break Bitcoin’s cryptography remains highly unlikely within the next decade.
The debate has renewed attention on possible upgrade paths for Bitcoin’s cryptography and on proposals discussed in the industry for post-quantum migration. Observers note that while a theoretical vulnerability exists if large-scale quantum computers arrive, the timing and practicality of such a breakthrough remain uncertain.
This summary is informational only and does not constitute investment advice. All investments carry risk; readers should do their own research before making trading decisions.