Bitcoin ETF Led by BlackRock and Fidelity…Largest Fund Inflow Since October 2025

▲ Bitcoin (BTC) Exchange Traded Fund (ETF) ©CoinReaders

While Bitcoin (BTC) has failed to find a clear direction for 8 consecutive days, institutional funds are flowing in rapidly. Led by BlackRock and Fidelity, US spot Bitcoin ETFs saw a net inflow of $2.39 billion last week, marking the largest volume since October 2025 and acting as a factor to alleviate long-term bearish investor sentiment.

According to the cryptocurrency media outlet Finbold on September 29 (local time), US spot Bitcoin ETFs recorded a net inflow of approximately $2.39 billion during the week until the 25th. According to SoSoValue data, this is the largest volume since $2.71 billion flowed in during the sharp decline in the virtual asset market on October 10, 2025. This week, an additional $31.07 million has flowed in, and the total net assets of US spot Bitcoin ETFs are estimated at approximately $107.82 billion.

BlackRock led the fund inflows. BlackRock's iShares Bitcoin Trust (IBIT) saw a net inflow of $1.16 billion last week, with an additional $54.84 million coming in on Monday. Consequently, IBIT's net assets increased to approximately $66.85 billion.

Fidelity's Wise Origin Bitcoin Fund (FBTC) also supported institutional demand with a net inflow of $701.68 million last week. However, on Monday, $10.9 million flowed out, turning into a net outflow for the day. FBTC's total assets are estimated at $15.43 billion.

The large-scale ETF fund inflows helped alleviate the bearish investor sentiment for Bitcoin that had persisted for the past 12 months. BTC fell by 2.34% in the last 7 days but maintained a price higher than the peak of around $82,000 recorded in May. Despite the price remaining in a highly volatile sideways range for the past 8 days until September 29, institutional investors' buying of spot ETFs remained strong.

Trading activity also expanded. At the time of writing, BTC's 24-hour trading volume increased by 9.43% in a day to $33.84 billion. Although the price continues its short-term adjustment, analysis suggests that bullish market sentiment is reviving due to large-scale fund inflows into spot ETFs, primarily from BlackRock and Fidelity.

*Disclaimer: This article is for investment reference only, and we are not responsible for any investment losses based on it. The content should be interpreted for informational purposes only.*