Odaily Planet Daily News Lookonchain monitored the US spot Bitcoin ETF data on June 28 and showed: 1. Grayscale increased its holdings by about 60 bitcoins, worth about US$3.6 million, and currently holds 275,955 bitcoins, worth about US$16.89 billion; 2. Fidelity increased its holdings by 109 bitcoins, worth about US$6.7 million, and currently holds 167,900 bitcoins, worth about US$10.28 billion; 3. 9 Bitcoin ETFs reduced their holdings by a total of 596 bitcoins, worth about US$36.5 million.