Spot gold ETF GLD and BlackRock’s spot Bitcoin ETF IBIT ranked fourth and sixth, respectively, in U.S. ETF trading volume on Sept. 3, with turnover of $4.53 billion and $3.48 billion. Bloomberg ETF analyst Eric Balchunas estimated that the funds’ combined share of total ETF trading volume was at a record high or close to one. Balchunas said the funds’ individual trading volumes were not unusually large, attributing their outsized share to generally lighter activity across other ETFs at the end of August.