Key Takeaways
- • US spot Bitcoin and Ethereum ETFs collectively exceeded $1 billion in inflows during the week ended August 7, 2026, marking their strongest weekly performance since April, with Bitcoin ETFs alone attracting $853.54 million.
- • BlackRock's iShares Bitcoin Trust (IBIT) and its Ethereum equivalent (ETHA) captured approximately $896 million of combined inflows, representing more than 80% of total weekly ETF inflows across both asset classes.
- • Spot Bitcoin ETFs demonstrated consistent demand throughout the week, recording positive inflows in every trading session, including $170.09 million on Monday, $211.49 million on Tuesday, and $244.42 million on Wednesday.
- • The broader spot Bitcoin ETF complex has accumulated over $52 billion in cumulative net inflows since their January 2024 US launch and currently manages approximately $80 billion in net assets.
- • The rebound in inflows occurred following the Coldcard security breach, though no direct causal link has been established between the two events.
Summary
US-listed spot Bitcoin and Ethereum exchange-traded funds experienced their strongest inflow week since April 2026, pulling in over $1 billion in fresh capital. Data from SoSoValue indicates that spot Bitcoin ETFs alone attracted $853.54 million during the seven-day period ended August 7, representing the largest single-week haul in nearly four months. Ethereum ETFs added approximately $147 million to reach the combined $1 billion milestone. The strength across both asset classes reflects renewed institutional and retail demand for regulated cryptocurrency investment vehicles.
BlackRock's dominant position in the market became particularly evident during this inflow surge. The firm's iShares Bitcoin Trust (IBIT) alone captured roughly $693 million of the weekly Bitcoin ETF total, while IBIT and its Ethereum counterpart (ETHA) together absorbed approximately $896 million—commanding more than four-fifths of all new capital entering spot crypto ETFs. This concentration underscores BlackRock's commanding market share as the world's largest asset manager in the spot Bitcoin ETF space.
The inflow momentum demonstrated consistency throughout the trading week, with Bitcoin ETFs recording positive net inflows in every session. Monday saw $170.09 million in inflows, followed by $211.49 million on Tuesday and $244.42 million on Wednesday, with demand moderating in subsequent sessions. This sustained week-long buying pattern contrasts with more volatile recent periods and suggests stabilizing institutional interest in the space.
The current inflow week surpassed the approximately $824 million collected during the week of April 24, 2026, and exceeded the previous peak of roughly $996 million for the week ended April 17. Since the landmark US debut of spot Bitcoin ETFs in January 2024, the product class has accumulated over $52 billion in cumulative net inflows and currently manages approximately $80 billion in net assets under administration.
The timing of the rebound follows the recent Coldcard security breach; however, sources indicate no evidence has yet directly linked the security incident to the surge in ETF inflows. The inflows appear driven by broader momentum in institutional adoption and demand for regulated cryptocurrency exposure rather than any specific security-related event or migration pattern.
BlackRock's dominant position in the market became particularly evident during this inflow surge. The firm's iShares Bitcoin Trust (IBIT) alone captured roughly $693 million of the weekly Bitcoin ETF total, while IBIT and its Ethereum counterpart (ETHA) together absorbed approximately $896 million—commanding more than four-fifths of all new capital entering spot crypto ETFs. This concentration underscores BlackRock's commanding market share as the world's largest asset manager in the spot Bitcoin ETF space.
The inflow momentum demonstrated consistency throughout the trading week, with Bitcoin ETFs recording positive net inflows in every session. Monday saw $170.09 million in inflows, followed by $211.49 million on Tuesday and $244.42 million on Wednesday, with demand moderating in subsequent sessions. This sustained week-long buying pattern contrasts with more volatile recent periods and suggests stabilizing institutional interest in the space.
The current inflow week surpassed the approximately $824 million collected during the week of April 24, 2026, and exceeded the previous peak of roughly $996 million for the week ended April 17. Since the landmark US debut of spot Bitcoin ETFs in January 2024, the product class has accumulated over $52 billion in cumulative net inflows and currently manages approximately $80 billion in net assets under administration.
The timing of the rebound follows the recent Coldcard security breach; however, sources indicate no evidence has yet directly linked the security incident to the surge in ETF inflows. The inflows appear driven by broader momentum in institutional adoption and demand for regulated cryptocurrency exposure rather than any specific security-related event or migration pattern.
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