Bitcoin and ether ETFs draw $2.6 billion in strongest inflow week since October, tripling volume

U.S. spot bitcoin and ether exchange-traded funds (ETFs) saw a combined $2.6 billion in net inflows last week, marking their strongest weekly inflow since October 2025, according to The Block's analysis of SoSoValue data. Bitcoin ETFs received $1.9 billion in inflows, while ether ETFs drew $697.2 million. This marked a reversal of a combined $392.0 million outflow the previous week, representing a $3 billion week-over-week swing.

It also more than doubled the $1.1 billion combined inflow recorded in the week ending August 7, the strongest result since April. Bitcoin ETF volumes reached their largest weekly total since the week ending October 10, 2025, with $1.9 billion in inflows. Combined net assets under management for both categories rose 25.4% to $96.1 billion from $76.6 billion, reflecting new inflows and bitcoin's price appreciation.

Much of the buying occurred during the market rally on Wednesday and Thursday, with bitcoin ETFs seeing $517.2 million in inflows on Wednesday, their largest daily inflow since May 4, and ether ETFs adding $606.3 million on Thursday, led by $503.0 million entering BlackRock's IBIT. Ether ETFs also saw their strongest weekly inflows since October, with $697.2 million in total, their highest since the week ending October 3, 2025.

Combined net assets for ether ETFs now exceed cumulative net inflows by approximately $2.1 billion. The inflows coincided with a broad crypto rally, with bitcoin briefly trading above $79,000 and both assets gaining between 24% and 28% for the week. However, the gains did not fully erase the products' year-to-date losses, with bitcoin ETFs down $2.9 billion and ether ETFs down $191.8 million.