BlackRock's Bitcoin ETF has achieved a significant milestone, reaching $70 billion in assets under management (AUM). This marks the fastest growth in the ETF sector, accomplished five times quicker than the previous record set by Gold, which took 1,691 days to reach a similar level. The rapid expansion of BlackRock's Bitcoin ETF underscores the increasing interest and investment in cryptocurrency assets, highlighting the growing acceptance of Bitcoin and other digital currencies in mainstream financial markets.