# U.S. Bitcoin ETFs Post Strongest Weekly Inflows Since October 2025

By Enna Lee

Canonical URL: https://www.tokenpost.com/news/investing/25275
Published: 2026-09-29T10:39:45.000Z
Updated: 2026-09-29T10:39:45.000Z
Section: Investing

> The funds drew approximately $2.39 billion through Sept. 25, with BlackRock and Fidelity accounting for roughly 78% of the total.

U.S. spot Bitcoin ETFs recorded approximately $2.39 billion in net inflows during the five trading sessions ended Sept. 25, marking their strongest weekly intake since October 2025 and concentrating demand in BlackRock and Fidelity funds.

BlackRock’s iShares Bitcoin Trust (IBIT) collected $1.1576 billion over the period, while Fidelity Wise Origin Bitcoin Fund (FBTC) received $701.6 million. Together, the two funds accounted for roughly 78% of total weekly inflows.

Flows were strongest early in the week, reaching $999 million on Sept. 21 and $714.7 million on Sept. 22. Inflows then slowed to $346.9 million on Sept. 23, $190.7 million on Sept. 24 and $134.5 million on Sept. 25.

IBIT led the final session with $97 million in inflows, while FBTC added $49.3 million. The funds are U.S.-listed spot Bitcoin exchange-traded funds that provide brokerage-account exposure to Bitcoin without requiring investors to hold the asset directly.

Bitcoin (BTC) remained in a choppy consolidation range during the period. ETF net flows show money entering or leaving the funds but do not establish how much of Bitcoin’s price movement was driven by ETF investors.