Cumulative trading volume of U.S. spot Bitcoin ETFs has exceeded $200 billion, less than three months after the U.S. Securities and Exchange Commission approved ETFs from BlackRock, Fidelity, Bitwise and others. According to The Block's data dashboard, cumulative trading volume of spot Bitcoin ETFs has nearly doubled in the last month alone, from March 8, when total trading volume first exceeded the $100 billion mark, to $201.7 billion at the close of trading yesterday.