Jag Kooner, head of derivatives at #Bitfinex, said that the U.S. #spotbtcetf assets under management have surpassed silver and become the second largest single commodity ETF in the United States. The current spot #BTCETFSPOT (including #GBTC ) holds 647,651 #BTC , with an asset size of $27.5 billion. The 19 ETF AUM for gold, which ranks No. 1, is $96.3 billion - The Block