Odaily News Lookonchain monitored the US spot Bitcoin ETF data on June 6 and showed: 1. BlackRock increased its holdings by 2,186 bitcoins, worth approximately US$155.869 million; 2. BlackRock currently holds a total of 297,644 bitcoins, worth approximately US$21.22 billion; 3. Fidelity increased its holdings by 3,104 bitcoins, worth approximately US$221.3 million, and currently holds a total of 173,715 bitcoins, worth approximately US$12.38 billion; 4. 9 Bitcoin ETFs increased their holdings by a total of 6,907 bitcoins, worth approximately US$492.4 million.