According to data from SoSoValue, the Ethereum spot ETFs saw another strong week of bullish trading activity in the third week of September, recording $556.92 million in net inflows. While the figure is slightly below the $637.79 million inflows registered during the second week, the performance underscores sustained investor appetite for Ethereum exposure through regulated institutional vehicles.
Despite the rocky start to the month, marked by $787.74 million in net outflows during the first week of September, Ethereum ETFs have now swung back into positive territory, with a cumulative September net deposit of $406.97 million.
BlackRock Dominates ETF Flows Again
In analyzing the Ethereum ETFs’ performance for the last week, BlackRock’s iShares Ethereum Trust (ETHA) continues to establish itself as the dominant player, after recording an impressive $513.01 million in net inflows, i.e, more than 92% of total ETH ETF inflows. With this momentum, BlackRock’s ETHA now holds $13.40 billion in cumulative inflows and $17.09 billion in net assets under management (AUM), reinforcing its position as the clear market leader.
In usual fashion, other funds lagged well behind in comparison. Grayscale’s Ethereum Mini Trust (ETH) posted a distant second with $17.99 million in net inflows, followed by Fidelity’s FETH with $15.18 million. Other ETFs with significant traction included Grayscale’s legacy ETHE trust, which added $13.60 million, and Bitwise’s ETHW, which attracted $7.52 million.
However, not all funds shared in the positive momentum as VanEck’s ETHV lost $8.16 million while Invesco’s QETH saw a minor $1.73 million in outflows, highlighting uneven performance across the sector. Taken together, all Ethereum ETFs now report $29.64 billion in total net assets, supported by $13.29 billion in cumulative inflows.
The latest numbers demonstrate that despite volatility in ETH spot prices and mixed performance among smaller ETFs, overall institutional demand for Ethereum remains robust. With BlackRock’s ETHA capturing the lion’s share of flows, its performance will likely remain a bellwether for the sector. If sustained, these inflows would continue to position Ethereum ETFs as a central driver of Ethereum’s institutional adoption heading into 2026.
Related Reading: Stocks Over Spot: The Case For Buying Bitcoin Treasury Companies Instead Of BTC
Bitcoin ETFs Record $887 Million
Meanwhile, Bitcoin ETFs also saw remarkable momentum in the third week of September, recording $886.65 million in net inflows, to push the monthly total to $3.48 billion. Similar to its Ethereum ETF counterpart, BlackRock’s iShares Bitcoin Trust (IBIT) dominated the market once again, leading with $866.84 million in aggregate inflows.
At the time of writing, total net assets across all Bitcoin ETFs now stand at $152.31 billion, representing 6.63% of Bitcoin’s total market capitalization. Meanwhile, cumulative inflows have reached $57.72 billion.