BlackRock’s spot Bitcoin ETF IBIT rises nearly 6% with $300M in daily inflows

BlackRock’s iShares Bitcoin Trust (IBIT) surged nearly 6% on the day, fueled by roughly $300 million in daily net inflows.

The numbers behind the dominance

On August 27, the fund pulled in $277.6 million in net inflows, a figure that actually exceeded the entire US spot Bitcoin ETF category’s net inflow of $242 million for that same day. That math only works because competing funds experienced outflows, meaning IBIT was not just winning the race but lapping the field while other runners stumbled backward.

The pattern repeated on September 2, when IBIT attracted $115.4 million. That came a day after the broader category posted a $236.5 million outflow, making the rebound even more notable. The category’s total for September 2 landed at $101.1 million in net inflows, with IBIT doing more than all the heavy lifting.

August as a whole was a strong month across the board, with total category inflows reaching approximately $3.5 billion. IBIT captured somewhere between 70% and 90% of total flows during peak periods.

The fund’s assets under management now sit at an estimated $60 billion, with cumulative net inflows since its January 2024 launch exceeding $63 billion. The entire US spot Bitcoin ETF category’s AUM has approached $97 billion to $100 billion, meaning IBIT alone accounts for roughly 60% of the whole pie.

Why BlackRock keeps winning

BlackRock manages over $10 trillion across its platform. Competitors like Fidelity’s FBTC and Ark 21Shares’ ARKB have attracted meaningful flows of their own, but neither has come close to challenging IBIT’s dominance on a sustained basis.

What this means for Bitcoin and crypto markets

Bitcoin’s price has been hovering in the mid-to-high $70,000s during this period, and the sustained ETF inflows provide a structural demand floor that did not exist in prior market cycles. Before January 2024, institutional investors who wanted Bitcoin exposure had to navigate custody solutions, futures contracts, or trust vehicles trading at persistent premiums or discounts to net asset value.

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