US spot Bitcoin ETFs attracted about $1.92 billion during the five trading sessions through Aug. 21, according to SoSoValue. This marked their strongest weekly inflow since October 2025. By Aug. 24, monthly ETF inflows had reached about $2.72 billion. At that point, August ranked as the strongest month of 2026 for the products.
A single trading session produced $517 million in net inflows as Bitcoin moved above $70,000. The renewed demand followed heavy ETF redemptions during May and June. The rally also followed the US Treasury’s decision to double its long-dated bond buybacks. Meanwhile, ETF flows offered a clearer gauge of regulated US demand than derivatives liquidations.
Daily ETF flows can reverse quickly. Therefore, continued accumulation during September would remain important as .