BlackRockās IBIT leads bitcoin ETFs with $55M inflows on Monday
Dated Farside figures show IBIT drove September 28 inflows while other bitcoin funds had net outflows
US spot bitcoin exchange-traded funds took in $31.0 million on September 28, according to Farside Investors’ daily fund-flow table. BlackRock’s iShares Bitcoin Trust (IBIT) accounted for $54.8 million, which rounds to $55 million. The other funds combined had net outflows of $23.8 million.
US spot ether funds recorded $17.1 million in net inflows the same day, according to Farside’s ether fund-flow table.
The previous week’s flows
For September 21 through September 25, daily rows in Farside’s bitcoin table sum to $2,385.8 million of net inflows across US spot bitcoin funds. IBIT accounted for $1,157.6 million, while Fidelity’s FBTC took in $701.6 million.
That IBIT week was not its second-largest since October 2025, as this article previously stated. Farside’s dated rows show larger IBIT weekly totals in the weeks beginning October 6, 2025 ($2,625.3 million) and August 17, 2026 ($1,330.8 million).
BlackRock reported $66.79 billion in IBIT net assets as of September 28.
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Flows recovered from July’s low
Summing Farside’s daily bitcoin fund totals, 2026 net flows reached a low of $5,689.6 million in outflows on July 13. By September 28, the year-to-date sum was $1,052.3 million in inflows, a swing of about $6.74 billion. Lifetime cumulative net inflows across the category stood at about $57.65 billion on Farside’s table.
Farside’s ether fund rows sum to $689.8 million of net inflows during September 21 through September 25, following $140.6 million of net outflows the previous week.
The flow tables show subscriptions and redemptions by fund. They do not identify buyers or establish that fund flows will continue.
Correction, September 29, 2026: An earlier version incorrectly ranked IBIT’s September 21 through September 25 inflow week second since October 2025 and gave undated year-to-date figures. This version uses dated Farside figures and removes unsupported claims about investor type and liquidity preference.