BlackRock crosses 800,000 BTC with IBIT, strengthening Bitcoin's institutional dominance

BlackRock's spot Bitcoin exchange-traded fund (IBIT) has surpassed 800,000 BTC in assets under management, following an eight-day streak of net inflows that brought in more than $4 billion. This milestone marks an important step in the institutional adoption of bitcoin, less than two years after the fund launched in January 2024.

BlackRock's IBIT Now Holds 3.8% of Bitcoin Supply Despite Record Flows

According to the latest disclosures, BlackRock's IBIT held approximately 802,257 BTC on Wednesday, valued at approximately $97 billion. The ETF alone received $426.2 million (around 3,510 BTC) in net inflows on Tuesday, pushing it past the threshold of 800,000 BTC. These holdings now represent 3.8% of the fixed bitcoin supply limited to 21 million.

This achievement puts BlackRock's Bitcoin fund well ahead of Michael Saylor's MicroStrategy, which holds 640,031 BTC (around $78 billion), or 3.1% of the total supply. This rapid growth highlights the rapid dominance of regulated investment vehicles in institutional exposure to bitcoin.

Across all U.S. spot Bitcoin ETFs, net inflows totaled $440.7 million on Wednesday, contributing to an eight-day streak topping $5.7 billion, according to data from The Block. Of this total, IBIT alone attracted over $4.1 billion in net inflows over the past week.

Eight-Day Streak of Bitcoin ETF Entries Reinforces Institutional Optimism

Timothy Misir, head of research at BRN, said the recent eight-day streak of net inflows into ETFs highlights sustained structural demand for bitcoin. He noted that the growing participation of corporate treasuries strengthens bitcoin's position as a strategic reserve asset. At the time of writing, bitcoin is trading around $122,500 after a 97% rise over the past year.

The eight-day streak of net inflows into ETFs underscores persistent structural demand as corporate treasury participation continues to broaden, reinforcing bitcoin's role as a strategic reserve asset.

Timothy Misir

Misir added that easing geopolitical risks, following the Trump-brokered Middle East peace framework, helped reduce short-term volatility, providing traders with a clearer outlook heading into the fourth quarter.

BlackRock tops ETF flows: IBIT attracts $1.21 billion in a single day

On Monday, Bitcoin ETFs recorded their largest daily inflow since Donald Trump's pro-crypto victory last November, with $1.21 billion. Since their launch, U.S. spot Bitcoin ETFs have seen nearly $63 billion in cumulative inflows — led by BlackRock's IBIT with around $65 billion — although outflows from Grayscale's converted fund have dampened that total slightly.

Nate Geraci, president of NovaDius Wealth Management, noted that spot Bitcoin ETFs are seeing unprecedented momentum, with $5.3 billion in inflows over the last seven trading days, including $2 billion in the last two days alone. According to him, this increase exceeded initial expectationsdenying skeptics who predicted a peak of $5 billion for this category.

In a post Wednesday, Eric Balchunas, senior ETF analyst at Bloomberg, reported that IBIT led all ETFs in weekly inflowscapturing $3.5 billion, or approximately 10% of total net flows across all ETF products. Balchunas added that even Grayscale's GBTC saw inflows during the week, reinforcing the strength of current market demand.

In another milestone, IBIT also became the world's largest Bitcoin options platform, holding $38 billion in open interest and surpassing Deribit, recently acquired by Coinbase.