Bitcoin and Ether ETFs Post $2.6B Weekly Inflows, Tripling Trading Volume
What happened: U.
What happened: U.S. spot Bitcoin and Ether ETFs recorded $2.6 billion in net inflows for the week ending August 21, 2026—the strongest week since October 2025. Bitcoin ETFs attracted $1.9 billion, while Ether ETFs saw $697.2 million. Combined ETF trading volume surged to $29 billion, more than tripling week-over-week. BlackRock's IBIT led with a $503 million single-day inflow on Thursday, and its cumulative inflows now total $62.43 billion.
Why it matters: The surge marks a sharp reversal from a year of net outflows, though both BTC and ETH ETFs remain negative year-to-date (BTC: -$2.9B, ETH: -$191.8M). The inflows reflect renewed institutional interest amid price rallies, with Bitcoin briefly surpassing $79,000 and Ether near $2,423. However, the funds are still on pace for their first annual net outflow since inception, highlighting persistent investor caution.
Source: The Block