Why a $9 billion bitcoin sale by single Galaxy client reignites quantum threat debate

CEO Mike Novogratz noted this sale was part of a profit-taking trend among early bitcoin adopters, indicating weakening conviction in the "HODLing" philosophy. What to know : A single client of Galaxy Digital sold $9 billion in bitcoin in Q4 2025, impacting the crypto markets as the sale took time to unwind, reminiscent of an IPO distribution, said CEO Mike Novogratz. He noted this sale was part of a profit-taking trend among early bitcoin adopters, indicating weakening conviction in the "HODLing" philosophy. Quantum computing concerns were cited as a driver of the sale, with industry leaders discussing the potential threat and the proactive measures being taken to enhance quantum resistance in cryptocurrencies such as Bitcoin, Ethereum and Cardano.