According to Odaily, recent data monitored by Lookonchain on July 18 reveals significant changes in the holdings of Bitcoin ETFs in the United States. BlackRock has increased its Bitcoin holdings by 1,708 BTC, valued at approximately $108.7 million. This brings BlackRock's total Bitcoin holdings to 323,833 BTC, worth around $20.62 billion. In contrast, Grayscale has reduced its Bitcoin holdings by 11 BTC, valued at approximately $713,000. Grayscale now holds a total of 273,005 BTC, worth around $17.4 billion. Overall, nine Bitcoin ETFs have collectively increased their holdings by 2,194 BTC, valued at approximately $139.7 million.