Spot Bitcoin and Ether ETFs saw unprecedented trading volume this past week, exceeding $40 billion in total activity, according to Bloomberg senior ETF analyst Eric Balchunas. This marked a record-breaking surge for crypto exchange-traded funds (ETFs) that propelled them into the top five U.S. ETF rankings and the top ten by trading volume. Ether ETFs alone contributed nearly $17 billion of this total volume, setting a new weekly record. The high activity was attributed to surging demand from both retail and institutional investors, as highlighted by Bloomberg’s chart showing consistent growth in ETF flows from early 2024 through August 2025. The surge reached its peak with over $40 billion traded in just one week, demonstrating the growing interest in crypto-linked funds.