Odaily News Lookonchain monitored the US spot Bitcoin ETF data on June 7 and showed: 1. BlackRock increased its holdings by 4,896 bitcoins, worth approximately US$347.61 million; 2. BlackRock currently holds a total of 302,540 bitcoins, worth approximately US$21.48 billion; 3. Ark 21Shares increased its holdings by 1,364 bitcoins, worth approximately US$96.84 million, and currently holds a total of 48,939 bitcoins, worth approximately US$3.47 billion; 4. The 9 Bitcoin ETFs increased their holdings by a total of 3,689 bitcoins, worth approximately US$261.9 million.