Haciyev Reşit 
On September 19, 2025, U.S.-listed spot Bitcoin and Ethereum ETFs once again highlighted institutional investor interest. Daily inflow figures reached remarkable levels for both Bitcoin and Ethereum.
Record Inflows into Bitcoin ETFs
U.S. spot Bitcoin ETFs recorded a total net inflow of $222.62 million during the day. This strong performance indicates that institutional confidence in Bitcoin remains firm. In particular, BlackRock’s iShares Bitcoin Trust (IBIT) stood out, posting an impressive $246 million inflow on its own.
This situation not only strengthens Bitcoin’s leading position in the markets but also demonstrates how attractive the ETF structure has become as an investment vehicle for institutional investors. IBIT’s performance has been recorded as one of the strongest indicators of institutional demand for Bitcoin in the U.S. market.
BlackRock Effect on Ethereum ETFs
Spot Ethereum ETFs also captured investor attention. By the end of the day, a total net inflow of $47.75 million was recorded. Almost all of this inflow came from BlackRock’s iShares Ethereum Trust (ETHA). ETHA alone attracted $144 million, highlighting the rapidly growing interest on the Ethereum side.
The strong demand for Ethereum ETFs shows that institutional investors are not limiting themselves to Bitcoin alone but are beginning to allocate space for different digital assets in their portfolios. This trend could pave the way for Ethereum to gain wider acceptance in the financial system as the “foundation of smart contracts.”
Possible Market Impacts
- Increase in institutional confidence: High ETF inflows reveal that digital assets are being adopted as long-term investment vehicles.
- Support for Bitcoin price: The concentration of inflows could put upward pressure on Bitcoin’s price.
- Ethereum’s rising role: The growing demand for ETH ETFs is seen as a sign that Ethereum will be used more widely in the institutional world.
- BlackRock’s leadership: The fact that both IBIT and ETHA recorded the largest inflows highlights once again the influence of traditional financial giants over crypto assets.
Overall Assessment
The latest data shows that both Bitcoin and Ethereum ETFs have become attractive investment tools for institutional investors, and that U.S. markets continue to play a critical role in the mass adoption of crypto assets.
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