Takeaways:
BlackRock’s IBIT fund passed $70 billion in 341 days, making it the fastest ETF to do so.
The fund accomplished the milestone five times faster than the former record holder GLD, a gold-based ETF that surpassed $70 billion in 1,691 days.
BlackRock's spot Bitcoin ETF made history again Monday.
The firm’s $iShares Bitcoin Trust (IBIT.US)$ has become the fastest exchange-traded fund (ETF) to reach $70 billion in assets under management (AUM), achieving the milestone in just 341 trading days—five times faster than the previous record held by SPDR Gold Shares (GLD), which took 1,691 days, according to Bloomberg Senior ETF Analyst Eric Balchunas.
"IBIT just blew through $70 billion and is now the fastest ETF to ever hit that mark in only 341 days, which is 5x faster than the old record held by GLD of 1,691 days," Balchunas posted to X Monday.
The Bitcoin ETF, launched in January 2024, now dominates the cryptocurrency ETF market, dwarfing competitors like Fidelity’s offering, which holds $31 billion, according to The Block Data Dashboard.
IBIT recently saw a 34-day streak of inflows.
GLD, the world’s largest physically backed gold ETF with roughly $100 billion in AUM, also known as SPDR Gold Shares, has tracked gold prices since its 2004 debut. However, Bitcoin’s rise as a modern store of value has driven unprecedented demand for IBIT, which saw 34 consecutive days of inflows leading up to June 2025.
As of April 2025, BlackRock’s ETF holds 2.8% of Bitcoin’s total circulating supply, representing over 663,000 BTC held on behalf of clients. The firm does not own the cryptocurrency directly but facilitates institutional exposure through its regulated product, marking a pivotal shift in mainstream financial adoption of digital assets.
Source: The Block
