Spot bitcoin ETFs log $2.7 billion in September inflows as institutional demand holds

U.S. spot bitcoin ETFs recorded $2.65 billion in net inflows in September, their second-largest monthly inflow since October 2025, as institutional demand continued.

According to SoSoValue data, September's inflows were down from $3.52 billion in August but remained well above levels seen throughout the past year. Spot ether ETFs also drew $832.43 million in September, compared with $1.85 billion in August. The September total was their second-largest monthly inflow since August 2025.

Bitcoin ETF inflows have continued on the first day of October, reporting $102.7 million. Ether ETFs, on the other hand, shed $55.4 million.

Dominick John, analyst at Zeus Research, told The Block that the ETF inflows suggest that institutional demand "has not faded," pointing to a more sustained recovery.