Odaily Planet Daily News Lookonchain monitored the US spot Bitcoin ETF data on May 24 and showed: 1. Grayscale GBTC reduced its holdings of 243 bitcoins, worth approximately US$16.5 million; 2. Grayscale currently holds a total of 289,257 bitcoins, worth approximately US$19.64 billion; 3. BlackRock increased its holdings by 1,321 bitcoins, worth approximately US$89.7 million, and currently holds a total of 284,526 bitcoins, worth approximately US$19.32 billion; 4. 9 Bitcoin ETFs increased their holdings by a total of 1,228 bitcoins, worth approximately US$83.4 million.