Bitcoin and Ethereum ETFs gain $23 billion, with $2.6 billion in inflows

U.S. spot Bitcoin and Ethereum ETFs gained about $23 billion in total value last week. Investors added $1.92 billion to spot Bitcoin ETFs for the week ending August 21. Investors added $697.2 million to Ethereum ETFs during the same period. The combined inflow was the strongest weekly result for both fund categories since October 2025. Bitcoin ETF assets rose 25.4% to $96.1 billion from $76.6 billion. Ethereum ETF assets rose 35.9% to $14.3 billion from $10.5 billion. About $20.7 billion of the total increase came from price appreciation. Bitcoin rose from about $62,000 to briefly above $79,000. Ethereum rose from below $1,900 to above $2,500. The U.S. Treasury doubled its long-bond buyback program during the week. A short squeeze liquidated about $3 billion in bearish positions within 24 hours. Another $1 billion was liquidated the following day. BlackRock's IBIT received 83 cents of every dollar that entered Bitcoin funds on one day. XRP funds received $39.78 million in new money. XRP funds recorded a weekly volume record of $271.74 million. Bitcoin ETFs still had net outflows for the year. Ethereum ETFs also remained negative for the year.