According to Trader T monitoring, hedge fund Millennium Management reduced its holdings in spot Bitcoin ETFs in the second quarter: FBTC was reduced by 14%, and now holds $589 million; IBIT was reduced by 48%, and now holds $371 million; GBTC was reduced by 52%, and now holds $82 million; BITB was increased by 71%, and now holds $65 million; MSTR was increased by 8837%, and now holds $121 million.