According to The Block, Jag Kooner, the derivatives head at Bitfinex, has stated that just one week after trading began, the assets under management (AUM) of Bitcoin ETFs in the United States have surpassed those of silver ETFs, making it the second-largest ETF commodity category in the country.
According to data from CC15Capital, Bitcoin spot ETF funds (including the conversion of Grayscale's GBTC trust) currently hold approximately 647,651 bitcoins, with assets under management totaling $27.5 billion.