BlackRock's Bitcoin ETF has crossed the $3 billion mark in BTC holdings, highlighting a significant pivot in institutional investment toward cryptocurrencies. A landmark moment as both BlackRock and ProShares ETFs outstrip Grayscale in daily trading volumes, showcasing changing investor preferences amidst the crypto market's evolution. With Grayscale experiencing $5.8 billion in asset outflows since January 11, the burgeoning ETF sector exemplifies mainstream finance's expanding endorsement of digital assets.