According to Lookonchain monitoring, on June 28, the US spot bitcoin ETF data showed that 9 bitcoin ETFs added a total of 596 bitcoins, worth about $36.50 million. 1. Grey release increased its holdings of about 60 bitcoins, worth about 3.60 million dollars, and currently holds 275,955 bitcoins, worth about 16.89 billion dollars; 2. Fidelity increased its holdings of 109 bitcoins, worth about $6.70 million, and currently holds 167,900 bitcoins, worth about $10.28 billion;