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Spot Bitcoin ETFs Post Second‑Largest Monthly Inflow Since 2025

September net flows show sustained institutional demand that could be altered by near-term U.S. economic data.

Overview

  • U.S. spot Bitcoin ETFs recorded $2.65 billion in net inflows for September, making it the second‑largest monthly total since October 2025 according to SoSoValue.
  • U.S. spot Ether ETFs drew $832.43 million in September, a decline from August’s $1.85 billion but still one of the stronger months for ether funds.
  • Daily flows remained volatile with large single‑day redemptions in mid‑September and mixed flows on the first day of October when Bitcoin ETFs added $102.7 million and Ether ETFs saw $55.4 million in net outflows.
  • Bitcoin and Ether prices rose alongside the inflows, with reported levels near $86,626 for Bitcoin and $2,735 for Ether while the Crypto Fear & Greed Index moved to 69.
  • Analysts say the fund creations show persistent institutional interest, but they warn that upcoming U.S. labor and inflation reports and Federal Reserve commentary could quickly change demand and fund flows.