Bitcoin Spot ETFs Garner $464M Net Inflows, AUM Nears $150B

Published: 2025-09-25 04:19:42 |

According to SoSoValue data, Bitcoin spot ETFs recorded net inflows of $223 million on September 19 and $241 million on September 24. BlackRock’s IBIT led with $246 million and $129 million respectively, while Ark Invest and 21Shares’ ARKB added $37.7 million on September 24. Total AUM for Bitcoin spot ETFs now stands near $150 billion (6.6% of Bitcoin’s market cap), with year-to-date cumulative net inflows around $57.7 billion. In contrast, Grayscale’s GBTC saw $23.5 million in outflows on September 19, extending its cumulative net outflows to $24.1 billion. Sustained inflows into Bitcoin spot ETFs signal growing institutional demand for regulated Bitcoin exposure, underpinning bullish momentum for BTC.

Bullish

Sustained, large net inflows into Bitcoin spot ETFs over consecutive sessions, led by BlackRock’s IBIT and Ark Invest’s ARKB, indicate rising institutional demand for regulated Bitcoin exposure. This growing AUM near $150 billion and cumulative inflows above $57 billion support bullish price momentum in both the short and long term. Conversely, continued outflows from GBTC suggest a rotation into spot ETFs, reinforcing positive market sentiment for BTC.