Aggregate net inflows into United States spot Bitcoin (BTC) exchange-traded funds slumped 95.6% to $23.2 million on Tuesday, according to a COINOTAG update published at 14:29 UTC on Oct. 21, 2026. Daily net flow figures of this kind — the gap between the day's creations and redemptions — are a commonly cited gauge of how quickly new capital is entering or leaving US spot Bitcoin funds.

The sharp pullback came into view alongside a clearer picture of the prior session's activity at rival issuers. Per COINOTAG's Monday breakdown, Fidelity's FBTC shed $83.6 million and Grayscale's GBTC lost $54.9 million — redemptions that the intake of BlackRock's iShares Bitcoin Trust (IBIT) absorbed.

IBIT, FBTC, and GBTC rank among the most closely followed US spot Bitcoin ETFs. The product class began trading in January 2024, after the US Securities and Exchange Commission approved the listing of spot Bitcoin exchange-traded products on national securities exchanges. GBTC entered the market by converting the long-running Grayscale Bitcoin Trust from a closed-end structure, while IBIT and FBTC launched as newly created funds.

Daily creations and redemptions for these products are publicly disclosed, allowing data compilers and outlets such as COINOTAG to publish daily flow snapshots. IBIT has grown into the largest spot Bitcoin ETF by assets under management. On Tuesday, the modest remaining surplus indicates that new creations across the group only narrowly outpaced redemptions. COINOTAG's subsequent daily snapshots will provide the next readings on the group's pace of intake.

This article is based on reporting first published on COINOTAG: Bitcoin (BTC) ETF Inflows Slump 95.6% to $23.2 Million on Tuesday.