IBIT Absorbs Nearly All Bitcoin ETF Inflows as BlackRock Surges Ahead

BlackRock’s Bitcoin ETF, IBIT, has cemented its dominance in the U.S. spot crypto market, pulling in nearly all inflows during a 10-day run that saw over $4.26 billion enter the space.

On May 28, Bitcoin ETFs brought in $432.7 million in new capital — but nearly all of it went to one place: IBIT alone attracted $481 million. In contrast, Fidelity’s FBTC and Ark Invest’s ARKB saw net outflows of $14 million and $34.3 million respectively, while other funds recorded no flows at all.

IBIT has accounted for 96% of all inflows during the current streak, totaling $4.09 billion across those 10 days. Since its launch in January, it has taken in $49 billion — eclipsing the combined contributions of all other Bitcoin ETFs. Meanwhile, Grayscale’s GBTC continues to lose ground, with $23.1 billion in net outflows since its conversion.

IBIT hasn’t just led over the past 10 days — it’s been on a tear for more than a month. Since April 9, the fund has logged 33 straight trading days without a single outflow, bringing in $9.31 billion during that span. Its assets under management now stand at $72 billion, making it the 23rd largest ETF in the U.S.

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Nate Geraci of The ETF Store called IBIT’s rise “ridiculous,” pointing out it has placed in the top five ETFs by 2025 inflows — out of over 4,000 total. Bloomberg’s Eric Balchunas added that no other ETF in the top 25 has achieved this level of growth so quickly, with the next youngest being over a decade old.

Bitcoin ETF trading volumes remain high, following last week’s $25 billion spike as BTC touched $112,000. On Wednesday, ETFs collectively saw $3.4 billion in trades, with IBIT accounting for $2.6 billion — nearly 80% of the total.

With Bitcoin now trading near $108,500, IBIT’s inflow and volume dominance reflects a larger trend: BlackRock isn’t just leading — it’s rewriting the rules of what a spot Bitcoin ETF can achieve.

Alexander Stefanov

With over 8 years of experience in the cryptocurrency and blockchain industry, Alexander is a seasoned content creator and market analyst dedicated to making digital assets more accessible and understandable. He specializes in breaking down complex crypto trends, analyzing market movements, and producing insightful content aimed at educating both newcomers and seasoned investors. Alexander has built a reputation for delivering timely and accurate analysis, while keeping a close eye on regulatory developments, emerging technologies, and macroeconomic trends that shape the future of digital finance. His work is rooted in a passion for innovation and a firm belief that widespread education is key to accelerating global crypto adoption.