BlackRock's IBIT records $665 million in daily net inflows

The spot bitcoin ETF from BlackRock saw its highest single-day intake in over a year on October 19, bringing its total net assets to $66.37 billion.

21 October 2026 · +5

BlackRock's iShares Bitcoin Trust registered $665.16 million in net inflows on Monday, October 19, 2026, marking its largest single-day intake since October 7, 2025, according to data published by The Block. On that earlier benchmark date, the fund took in $899.4 million, as recorded in historical flow tables from TFTC.

For the same date, The Block reported aggregate net inflows across all United States spot bitcoin exchange-traded funds of $526.6 million. Because the overall figure was lower than the amount reported for IBIT alone, the article notes that these data points stem from separate tracking metrics and cannot be directly reconciled without underlying fund-by-fund breakdowns.

Since its launch in January 2024, IBIT has grown into the largest spot bitcoin ETF on the market, with net assets standing at $66.37 billion as of October 20, 2026.

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