BlackRock’s iShares Bitcoin Trust (IBIT) has crossed a major milestone, now holding more than 700,000 Bitcoin—valued at roughly $75.5 billion—cementing its dominance in the U.S. spot Bitcoin ETF landscape. According to data shared by Apollo co-founder Thomas Fahrer, the fund hit 700,307 BTC on Monday following a $164.6 million daily inflow.
This means BlackRock’s IBIT now controls over 55% of all Bitcoin held across U.S.-listed spot ETFs, as tracked by Bitbo. Data from BlackRock’s official website as of Thursday showed holdings of 698,919 BTC, suggesting an addition of 1,388 BTC in just two trading days.
Launched in January 2024, the IBIT ETF has rapidly grown to become one of BlackRock’s most successful products, outperforming even its flagship iShares Core S&P 500 ETF in revenue generation. IBIT has returned 82.67% since inception, illustrating the rising appetite for Bitcoin exposure among institutional investors and traditional asset managers.
Institutional Buying Is Outpacing Bitcoin’s Supply
The surge in ETF growth is part of a broader trend: institutions are absorbing more Bitcoin than miners are producing. New research from Galaxy Digital reveals that between U.S. spot ETFs and Michael Saylor’s Strategy—by far the largest corporate holder of Bitcoin—the combined entities have bought approximately $28.22 billion worth of BTC in 2025.
By contrast, Bitcoin miners have added only $7.85 billion worth of new supply in the same period. This imbalance highlights a rapidly tightening supply dynamic that could have long-term implications on Bitcoin’s price trajectory.
Except for February—when institutional entities briefly turned net sellers—the combined Bitcoin purchases have outpaced monthly issuance throughout the year. The growing accumulation trend also underscores how institutional behavior is increasingly shaping the asset’s market structure, particularly post-halving.
SEC Looks to Streamline Crypto ETF Process
As Bitcoin ETFs grow in scale and market impact, U.S. regulators appear to be adapting to the new reality. Reports suggest the Securities and Exchange Commission (SEC) is considering a revised, streamlined process for future crypto ETF approvals.
The proposed change would allow issuers to file a Form S-1 and automatically receive approval after 75 days unless the SEC objects. If enacted, the measure could remove bureaucratic delays and pave the way for a faster launch of new products tied to digital assets.
Earlier this month, the REX-Osprey Solana and Staking ETF became the first of its kind in the United States. It gives investors exposure to Solana (SOL) along with its staking rewards, setting a precedent for innovative staking-based ETF structures.
These regulatory signals suggest growing institutional acceptance of digital assets and a willingness among authorities to foster product innovation—especially as demand for diversified crypto exposure grows beyond just Bitcoin and Ethereum.
Quick Facts
- BlackRock’s IBIT ETF now holds over 700,000 BTC, valued at ~$75.5B.
- IBIT accounts for 55% of all Bitcoin held in U.S. spot ETFs.
- U.S. ETFs and Strategy have outpaced Bitcoin mining supply nearly every month in 2025.
- The SEC may soon simplify the crypto ETF approval process to a 75-day timeline.
