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BlackRock’s iShares Bitcoin Trust (IBIT) is now its most profitable ETF for BlackRock, generating an estimated $244.5 million in annual revenue with nearly $100 billion in assets.
Updated Oct 7, 2025, 9:06 a.m. Published Oct 7, 2025, 9:06 a.m.
The U.S. bitcoin exchange-traded funds (ETFs) recorded a $1.2 billion net inflow on Monday, marking the seventh occasion that inflows have exceeded $1 billion, according to Farside data. The majority of these inflows came from BlackRock’s iShares Bitcoin Trust (IBIT), which attracted $970 million.
Historically, when inflows reach around $1 billion, it has often coincided with a short-term top in bitcoin’s price.
The first instance occurred on March 12, 2024, when bitcoin peaked at around $74,000 two days later on March 14. The next two instances were in November 2024, when bitcoin surged above $100,000, with large inflows appearing just before the rally concluded in December. On Jan. 17, another $1 billion inflow preceded a local top near $109,000 on Jan. 20. Similarly, on July 10 and 11, consecutive $1 billion inflows were followed by a short-term peak of $123,000 on July 14.
On Monday, bitcoin climbed above $126,000, so it remains to be seen whether a new high will form in the coming days, with bitcoin around $124,000.
Meanwhile, Senior Bloomberg ETF Analyst Eric Balchunas noted that IBIT is now BlackRock’s most profitable ETF, with assets under management just shy of $100 billion, generating an estimated $244.5 million in annual revenue. The next closest fund by revenue is the iShares Russell 1000 Growth ETF. Balchunas also highlighted that IBIT is approaching $100 billion in AUM in just 435 days, whereas the next-fastest ETF to reach that milestone, the Vanguard S&P 500 ETF (VOO), took 2,011 days.
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