U.S. spot Bitcoin and Ethereum ETFs added $2.6 billion in net inflows for the week ending August 21, their best week since October 2025, while total assets under management jumped roughly $23 billion. Bitcoin ETF assets rose 25.4% to $96.1 billion and Ethereum ETF assets rose 35.9% to $14.3 billion. Bitcoin gained about 24% and Ethereum about 30%, driven by the Treasury doubling its long-bond buyback program, Trump’s White House meeting with crypto executives, and a short squeeze that wiped out roughly $3 billion in bearish positions within 24 hours. Most of the AUM growth came from price appreciation rather than new money.
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