Spot Bitcoin ETFs Log $2.65B September Inflows as Demand Holds
What happened: US spot bitcoin ETFs attracted $2.
What happened: US spot bitcoin ETFs attracted $2.65 billion in net inflows during September 2026, marking their second-largest monthly inflow since October 2025. While this figure is down from August’s $3.52 billion, it brings Q3 cumulative inflows to approximately $6.34 billion. BlackRock’s IBIT reportedly captured 81% of Q3 flows. Spot Ethereum ETFs also saw $832 million in inflows, down from $1.85 billion in August.
Why it matters: The sustained inflows into spot bitcoin ETFs reflect ongoing institutional interest, even as monthly momentum cooled slightly. The data suggests that, despite increased volatility and a modest price pullback, institutional investors continue to view bitcoin as a portfolio allocation. However, the month-over-month decline could signal early signs of demand plateauing after a year of record inflows.
Source: The Block