Paper-cut illustration of green capital flows entering a copper Bitcoin ETF structure.

US Bitcoin ETFs Record $986.7 Million Weekly Net Inflows

Luke Wong
Luke Wong
Updated on 09/08/2026

US spot Bitcoin ETFs added a net $986.7 million during August 31–September 4. Two sessions accounted for almost 92% of the weekly balance.

US spot Bitcoin exchange-traded funds attracted $986.7 million in net inflows in the week ended September 4, with most of the money arriving in the final two trading sessions, according to Farside Investors’ daily data.

The funds took in $730.8 million on September 3 and another $174.6 million on September 4. Their combined $905.4 million accounted for approximately 91.8% of the weekly net total, calculated from the five daily figures.

BlackRock’s IBIT recorded $691.5 million in net inflows over the same period, equivalent to about 70.1% of the aggregate weekly balance.

The week began with a $216.7 million inflow on August 31, followed by a $236.5 million outflow on September 1. A $101.1 million inflow on September 2 left the first three sessions with a net gain of $81.3 million before the stronger finish.

The figures cover August 31 through September 4 and were checked on September 7. They measure net fund flows rather than ETF trading turnover or assets under management.

The flow table does not identify individual investors or their reasons for subscribing to the funds. Farside cautions that its automatically generated table may contain errors. The figures remain subject to revision.

Cover: AI-generated editorial illustration.

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