According to market reports, BlackRock’s iShares Bitcoin Trust (IBIT) has risen to a major milestone, with assets under management reaching around $98 billion to $100 billion.
In just over a year since its establishment, the fund generated revenues of around $244 million to $245 million per year, with stable inflows and 0.25% management fees. This rapid rise has made IBIT one of the most profitable products in the BlackRock lineup.
Rapid growth and revenue
IBIT reached its current size in about 435 days. The report said its pace was much faster than it took many legacy funds to build similar sizes, with Vanguard’s S&P 500 ETF (VOO) taking around 2,011 days to reach $100 billion.
Market officials have pointed out that IBIT could become the fastest ETF ever, reaching $100 billion. Bloomberg analyst Eric Bartunas described the rise as “absurd.”
The calculation is simple. Large flows and rising Bitcoin prices will increase asset management balances and increase fee revenue. That loop was strong this year.
$4 It’s just about $100 billion, and based on current assets under management, it’s BlackRock’s most profitable ETF. Check out the remaining top 10 ages. It’s absurd. pic.twitter.com/E8ZMI2wynx
— Eric Balchunas (@EricBalchunas) October 6, 2025
Flow count and market movements
On recent trading days, US spot Bitcoin ETFs had a net inflow of nearly $1.2 billion. IBIT reportedly won about $970 million of this total.
Based on market reports, more than half of the ETF inflow into the US market has flowed into IBIT, highlighting the appeal of IBIT to many investors. A flow of funds at this scale could increase demand for underlying Bitcoin and amplify price fluctuations.
Some traders are closely monitoring these inflow dates as similar surges have reached near the highest local price in the past.
Market impact and risks
The report highlighted some obvious risks for investors and the broader market. One is the premium or discount that arises between the market price of an ETF and the net asset value. In moments of stress, the gap can expand even further.
The other is regulations. Rules within the US or overseas may change, which may affect flows. Competition is also a factor. Fee pressure from rival issuing companies may change revenue forecasts.
Finally, rapid growth is easy at first. As your base grows, it becomes more difficult to maintain this pace.
Mechanisms and Strategies
The structure of IBIT relies on daily creation and redemption by authorized participants, with large storage settings being used to hold Bitcoin.
According to submissions and industry reports, BlackRock is considering expanding its products such as the Bitcoin Premium Income ETF, which aims to generate yields through its options strategy, and has taken measures such as applying to establish a trust company to support it. These moves suggest that the company is planning multiple ways to meet demand.
Featured Images from Newscom, Charts from TradingView
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