BlackRock’s Bitcoin ETF Records Best Month Ever, Hitting Ten Consecutive Days of Inflows

By Rachel Lourdesamy May 30, 2025 In Bitcoin, Blackrock, ETF

Source:AdobeStock

BlackRock’s IBIT pulled in US$6.22B across in May, far outpacing all other Bitcoin ETFs.
The fund’s US$72B in AUM places it in the top five ETFs by 2025 inflows, among 4,000+ competitors.
IBIT’s rapid ascent is unmatched, becoming a standout ETF despite launching just over a year ago.

BlackRock’s iShares Bitcoin Trust (IBIT) has brought in US$6.22 billion (AU$9.68 billion) in total spot Bitcoin ETF inflows in May alone, its strongest month since launching in January 2024.

According to data from Farside Investors, IBIT recorded positive net inflows in 30 of 31 trading days, including ten consecutive trading days of inflows totalling US$4.09 billion (AU$6.36 billion) at the end of the month.

On 28 May alone, IBIT attracted US$481 million (AU$748.35 million) while Ark Invest’s ARKB and Fidelity’s FTBC had net outflows of US$34.3 million (AU$53.36 million) and $US14 million (AU$21.78 million) respectively.

This latest surge brings IBTI’s total assets under management to just over $72 billion (AU$112.02 billion), entering the top 5 ETFs by 2025 inflows out of more than 4000.

What makes IBIT unique is that it has achieved this milestone in just over a year, with the next youngest ETF being 12 years old, according to Bloomberg’s Eric Balchunas.

$IBIT on fire lately, now has $72b in assets, which ranks it 23rd overall, absolutely bonkers for a one year old. The next youngest ETF in the Top 25 is 12yrs old! https://t.co/i62HDtbyxJ
— Eric Balchunas (@EricBalchunas) May 28, 2025

IBIT’s rise also reflects the increasing institutional appetite of regulated crypto investment vehicles. As traditional finance continues to deepen its involvement in the digital asset space, BlackRock’s success may encourage more asset managers to expand their crypto offerings – potentially paving the way for new ETF entrants or the evolution of existing products.

Author

Rachel Lourdesamy

Rachel is a freelance writer based in Sydney with experience within financial services, marketing, and corporate communications in the APAC region. An avid reader and a graduate of the University of Sydney, she covers topics including business, finance and human interest.