Golden Finance reported that according to Lookonchain monitoring, the data of US spot Bitcoin ETF on May 31 showed that: Fidelity increased its holdings of 1,727 bitcoins, worth approximately US$116 million, and currently holds 164,030 bitcoins, worth approximately US$11 billion; Ark 21Shares reduced its holdings of 1,449 bitcoins, worth approximately US$97.44 million, and currently holds 47,175 bitcoins, worth approximately US$3.17 billion; 9 Bitcoin ETFs increased their holdings by a total of 458 bitcoins, worth approximately US$30.8 million.