BlackRock’s iShares Bitcoin Trust (IBIT) continues to assert its number 1 position in the spot Bitcoin ETF market, reaching a record 91.06 billion USD in assets under management.
BlackRock's IBIT has attracted significant inflows amid Bitcoin price volatility, reflecting strong confidence from both institutional and individual investors in this ETF fund.
MAIN CONTENT
IBIT leads the US spot Bitcoin ETF market with 91.06 billion USD in assets under management.
Inflow into IBIT and other large funds reflects sustained confidence in cryptocurrency ETF products despite price volatility.
Spot Ethereum ETFs are also breaking records for net inflows, with BlackRock's ETHA surpassing 10 billion USD in new inflows after 3 months.
What is BlackRock's IBIT?
IBIT is the largest spot Bitcoin ETF in the US, operated by BlackRock, allowing investors to access Bitcoin directly in a transparent and tightly regulated manner.
IBIT has risen to lead the spot Bitcoin ETF market, reaching a size of 91.06 billion USD and becoming the most preferred product among both institutional and individual investors.
Bloomberg Intelligence, August 2025 Update Report
Since its launch in January 2024, IBIT has not only broken records for inflows in its first month but has also maintained exceptional growth due to strong demand from both major financial institutions and individual communities.
The fund provides advantages for users by clarifying exposure to Bitcoin, reducing personal storage risk, while leveraging the management potential of the world's leading financial group, BlackRock.
Why has IBIT reached record assets under management?
IBIT has reached the milestone of 91.06 billion USD in assets by attracting 58.04 billion USD in net inflows as of August 13. This result reinforces investor confidence in the Bitcoin ETF product.
IBIT surpassing the 90 billion USD asset threshold is a clear testament to the maturity of the spot Bitcoin ETF market in the US. This is a positive signal that promotes transparency as well as broader access to Bitcoin.
Eric Balchunas, Senior ETF Analyst, Bloomberg, 8/2025
This performance is noteworthy as it occurs even during a significant correction and volatility in Bitcoin, demonstrating the strong demand for legitimate, transparent investment products, especially among professional financial institutions.
Since January 2024, IBIT has recorded extremely strong inflows (over 5 billion USD in just the first month), and by mid-July 2025, total cumulative inflows have exceeded 80 billion USD.
Price trends, number of shares, and market share of IBIT?
On August 13, IBIT closed at 69.84 USD/share, up 0.57% compared to net asset value, reflecting stable market demand, despite no new inflows on that day.
IBIT currently holds 3.72% of the total circulating Bitcoin supply globally, reinforcing its pioneering position in scale and influence of this fund.
IBIT holds over 54.82 million shares outstanding, with a total value of approximately 3.79 billion USD. This proves that investment capital continues to choose spot ETF solutions like IBIT when wanting exposure to Bitcoin without bearing personal storage risks.
Glassnode, On-chain data August 2025
IBIT allows investors to trade easily on US exchanges and reduces most legal and custody barriers. This is why this product consistently leads in asset value and the number of shares issued compared to competitors.
How is the growth of other Bitcoin ETFs?
Alongside IBIT, Fidelity’s FBTC is in second place with 24.77 billion USD in assets under management and net inflows of 12.07 billion USD, reflecting the fierce competition in the spot Bitcoin ETF product segment.
Fidelity has quickly become the largest competitor of BlackRock in the Bitcoin ETF space in the US, leveraging its strengths in customer base and management capabilities in the traditional finance sector.
ETF.com, Q3 2025 Market Report
Grayscale's GBTC, despite being an older fund, has continuously shrunk in size, managing only 22.18 billion USD and has recorded 23.72 billion USD in outflows since converting to an ETF.
Ark Invest’s ARKB and Bitwise’s BITB have smaller market shares, reaching 5.58 billion USD and 5.02 billion USD respectively, indicating a strong concentration in large, reputable funds.
ETF Name Assets Under Management (USD) Net Inflows (USD) BlackRock’s IBIT 91.06 billion 58.04 billion Fidelity’s FBTC 24.77 billion 12.07 billion Grayscale’s GBTC 22.18 billion -23.72 billion Ark Invest’s ARKB 5.58 billion Not disclosed Bitwise’s BITB 5.02 billion Not disclosed
Bitcoin price volatility and its impact on ETFs?
The recent sharp correction in Bitcoin stemmed from higher than expected US Producer Price Index (PPI) data, heightening the market's sensitivity to macroeconomic factors.
Bitcoin has sharply dropped from nearly 124,000 USD to below 119,000 USD, leading to over 930 million USD in leveraged positions being liquidated in the Bitcoin market, and more than 1 billion USD in liquidations across the broader cryptocurrency market.
The severe volatility of Bitcoin prices indicates that investors in spot ETFs need to focus on risk management and always closely monitor macro data, especially during periods when the market is sensitive to inflation and US monetary policy.
Arthur Hayes, Co-founder of BitMEX, Interview with Investopedia August 2025
When the market is highly volatile, the role of ETFs like IBIT is further reinforced by ensuring transparency, liquidity, and minimizing technical risks for both retail and institutional investors.
The rise of Ethereum and spot ETH ETFs
As Bitcoin prices fell, the market quickly recorded a strong shift of capital towards Ethereum and spot Ethereum ETFs, with new records for inflows.
On August 11 alone, spot ETH ETFs in the US attracted 1.019 billion USD in net inflows, far surpassing Bitcoin ETFs in daily growth rate. Notably, BlackRock's iShares Ethereum Trust (ETHA) reached 10 billion USD in net inflows within just 3 months.
ETHA doubling the cumulative inflows to over 10 billion USD in the most recent quarter demonstrates renewed interest in Ethereum – the world’s second-largest digital asset – and is a positive signal for the diversification of cryptocurrency ETF products.
CoinShares, Weekly Digital Asset Fund Flows, 8/2025
Currently, ETHA holds over 3.3 million ETH, establishing a leading position in the spot Ethereum ETF market and indicating that investors are increasingly favoring diversified products, not just focused on Bitcoin.
What are the driving factors and barriers for cryptocurrency ETFs?
Despite rapid growth, cryptocurrency ETFs still face significant price volatility and risks from global economic policies, but clearly, transparency, accessibility, and transparent fees are attractive advantages.
Growing confidence in large institutions like BlackRock and Fidelity when launching ETF products is a key foundation driving professional capital into the market.
However, factors such as market liquidity, price reflection speed, and the regulatory environment may still significantly impact the actual demand for Bitcoin or Ethereum ETFs in the near future.
Frequently Asked Questions about IBIT and cryptocurrency ETFs
What is BlackRock's IBIT and who is it suitable for investing?
IBIT is a Bitcoin spot ETF issued by BlackRock, suitable for individual and institutional investors who want legal and transparent exposure to Bitcoin in the US.
Why does IBIT attract strong inflows despite Bitcoin price volatility?
High reliability, professional management, and convenient trading capabilities have made IBIT gain trust even when Bitcoin is highly volatile.
How do spot Bitcoin ETFs like IBIT, FBTC, and GBTC differ?
IBIT leads in asset size and inflows, FBTC is rapidly growing, while GBTC has recorded significant outflows since converting to an ETF.
Besides Bitcoin, which other ETFs stand out in the market?
Spot Ethereum ETFs (especially BlackRock's ETHA) are experiencing strong growth, becoming a new destination for institutional cryptocurrency investment flows in the United States.
Are cryptocurrency ETFs affected by Bitcoin price shocks?
Yes, ETFs reflect asset price volatility (Bitcoin, Ethereum) but provide transparency and easier risk management for investors compared to holding coins directly.
What percentage of total circulating Bitcoin does IBIT hold?
IBIT currently holds the equivalent of about 3.72% of the total Bitcoin supply circulating globally.
What are the benefits of investing through an ETF instead of holding Bitcoin directly?
ETFs help legitimize investment, reduce personal storage risks, facilitate easier trading on stock exchanges, and are secured by leading financial institutions.
Source: https://tintucbitcoin.com/blackrock-etf-nam-91-ty-usd/
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