Crypto ETFs Surge Past $1B Weekly Inflows, BlackRock Captures 80% Share

Woofun AI reports that Bitcoin and Ethereum ETFs have collectively surpassed $1 billion in weekly inflows, marking their strongest performance since April 2024, with BlackRock dominating the capital accumulation by securing 80% of the total volume.

The weekly surge was driven by consistent daily gains, starting with $170.09 million on Monday, followed by $211.49 million on Tuesday and $244.42 million on Wednesday, before demand moderated later in the week. This total eclipses the roughly $824 million collected during the week of April 24 and represents the highest figure since the week ended April 17, when Bitcoin funds alone drew approximately $996 million. These recent inflows contribute to the massive scale amassed since the products' landmark US debut in January 2024; the group has now recorded more than $52 billion in cumulative net inflows and oversees about $80 billion in net assets.

Woofun AI data shows that the timing of these flows intersects with a heated debate over custody security, sparked by the Coldcard breach involving hardware designed for self-custody. Analyst Balchunas argues this incident strengthens the case for institutional custody among investors seeking long-term Bitcoin exposure rather than transactional utility, as the security infrastructure of large financial institutions becomes harder to dismiss. While there is no direct evidence linking the Coldcard breach to this week's inflows, the timing puts the trade-off between self-custody and institutional custody back into focus. The current run has brought roughly $566 million into the products and represents their longest weekly inflow streak this year, as well as their longest since a 14-week run between May and August 2025 that attracted nearly $10 billion.

Daily flows continued to climb with $53.75 million on Tuesday, $60.86 million on Wednesday, $92.15 million on Thursday, and $49.60 million on Friday. This renewed demand signals a sharp improvement from the weaker flows characterizing much of the summer, offering Wall Street's regulated vehicles their clearest sign in months that investors are actively rebuilding exposure.