BlackRock IncBlackRock's IBIT captured the largest share of new money in Bitcoin ETF inflows.

U.S. spot Bitcoin and Ethereum ETFs added roughly $23 billion in total value last week, but only $2.6 billion of that came from new investor money. Bitcoin ETFs took in $1.92 billion in net inflows for the week ending August 21, while Ethereum funds added $697.2 million, the strongest combined week since October 2025. The rest of the asset growth came from price appreciation, with Bitcoin ETF assets climbing 25.4% to $96.1 billion and Ethereum ETF assets jumping 35.9% to $14.3 billion. Bitcoin rose about 24% to briefly top $79,000, and Ethereum gained about 30% to above $2,500, driven by the U.S. Treasury's expanded long-bond buyback program, President Donald Trump's meeting with crypto executives and push for the Clarity Act, and a short squeeze that liquidated roughly $4 billion in bearish positions over two days. BlackRock's IBIT captured the largest share of new money, while XRP funds drew $39.78 million in inflows and set a record weekly volume of $271.74 million. Despite the rally, Bitcoin and Ethereum ETFs remain in net outflows for 2026, with the combined year-to-date deficit narrowing from $5.7 billion to $3.1 billion.
BlackRock IncBlackRock's IBIT captured the largest share of new money in Bitcoin ETF inflows.