BlackRock's iShares Bitcoin Trust (IBIT) recorded a net inflow of $21.1 million on October 9, according to a COINOTAG report published on October 10, 2026, citing aggregation data from SoSoValue.

The single-day figure came within a broader negative weekly trend. In an update issued at 12:06 UTC on October 10 — subsequently stamped at 12:27 UTC — COINOTAG added a new datapoint from SoSoValue's aggregation: over the five trading sessions ending October 9, Bitcoin ETFs saw $681.10 million in net outflows. That marked the first negative week for the products after three consecutive weeks of net inflows. The pairing illustrates how single-fund prints and category totals can diverge within one stretch: IBIT's October 9 inflow fell on the closing session of the same five-day period that produced the weekly outflow total.

For background, IBIT is BlackRock's spot Bitcoin exchange-traded fund listed in the United States. It began trading in January 2024 as part of the first group of US spot Bitcoin ETFs, which hold bitcoin (BTC) directly and issue shares that trade on national exchanges. Daily and weekly net flow figures for these funds — derived from creations and redemptions of fund shares — are compiled by data providers including SoSoValue. Under that accounting, a negative weekly total means redemptions outpaced creations across the tracked funds in aggregate, even when a single fund such as IBIT records a positive day.

Because these aggregations are refreshed as new datapoints arrive — as COINOTAG's same-day update to its own report shows — the next daily compilations from SoSoValue will extend the flow record to the trading sessions following October 9.

This content was first published on COINOTAG: https://en.coinotag.com/blackrock-ibit-led-21-1m-bitcoin-etf-inflow-october-9