Lookonchain monitored the June 6 U.S. spot bitcoin ETF data and revealed that: BlackRock increased its holdings of 2,186 bitcoins, worth about $155.869 million; BlackRock currently holds a total of 297,644 bitcoins, worth approximately $21.22 billion. 3. Fidelity increased its holdings of 3,104 bitcoins, worth about $221.30 million, and currently holds a total of 173,715 bitcoins, worth about $12.38 billion; Nine bitcoin ETFs added a total of 6,907 bitcoins, worth about $492.40 million.