[BlackRock IBIT Accumulated $1.08 Billion BTC Purchases Over the Past 20 Days] According to Arkham monitoring, BlackRock IBIT has accumulated $1.08 billion in BTC purchases over the past 20 days, with fund inflows recorded on 7 of those days. During the same period, Grayscale GBTC recorded a net sale of $254.7 million in BTC.