- Bitcoin ETFs post net inflows of 2,504 BTC despite withdrawals from select funds.
- Ethereum ETFs record weekly outflows of 164,977 ETH, signaling weaker demand.
- Institutional flows diverge, with Bitcoin gaining traction while Ethereum lags.
Bitcoin ETFs recorded continued inflows in the latest update, while Ethereum investment funds faced consistent redemptions. Data from Lookonchain showed diverging institutional activity, with Bitcoin products gaining ground and Ethereum showing weaker momentum.
On September 10, Bitcoin ETFs registered net inflows of 524 BTC, valued at $59.75 million. BlackRock’s iShares Bitcoin Trust (IBIT) led with 1,521 BTC entering the fund, adding $173.42 million in assets. IBIT now holds 752,301 BTC worth $85.76 billion, cementing its role as the largest Bitcoin ETF by holdings.
Sept 10 Update:
10 #Bitcoin ETFs
NetFlow: +524 $BTC(+$59.75M)🟢#iShares(Blackrock) inflows 1,521 $BTC(+$173.42M) and currently holds 752,301 $BTC($85.76B).9 #Ethereum ETFs
NetFlow: +15,071 $ETH(+$66.51M)🟢#iShares(Blackrock) inflows 10,285 $ETH($45.39M) and currently holds… pic.twitter.com/AtOqGWwgIi— Lookonchain (@lookonchain) September 10, 2025
Weekly results remained positive despite outflows from some funds. Fidelity’s Wise Origin Bitcoin Fund (FBTC) saw the largest withdrawal of 501 BTC in one day and a total of 987 BTC across the week. ARK 21Shares Bitcoin ETF (ARKB) also recorded losses, with 450 BTC exiting in the last 24 hours and 1,243 BTC withdrawn over the week.
Even with these redemptions, combined weekly flows reached 2,504 BTC, indicating sustained accumulation in the sector. Among the group, IBIT remained the primary driver of inflows and the strongest contributor to the growth of Bitcoin ETF assets.
Ethereum ETFs Report Weekly Outflows
While Bitcoin funds showed resilience, Ethereum ETFs posted net outflows. Daily activity on September 10 recorded inflows of 15,071 ETH worth $66.51 million. BlackRock’s iShares Ethereum Trust (ETHA) attracted the largest share, with 10,285 ETH, or $45.39 million. Grayscale’s Ethereum Trust (ETHE) and Mini Trust also registered gains of 2,153 ETH and 2,633 ETH, respectively.
Source: Lookonchain
The weekly totals reversed this momentum. ETHA experienced the largest loss, with 105,853 ETH withdrawn. Additional withdrawals from Fidelity, Franklin, and VanEck’s funds brought the cumulative outflow to 164,977 ETH. Total Ethereum ETF holdings now stand at about 6.37 million ETH, reflecting a weaker appetite compared with Bitcoin.
Diverging Institutional Activity
The data displays diverging institutional behavior across the two largest cryptocurrencies. Bitcoin ETFs delivered consistent inflows across the week, raising overall holdings above 752,000 BTC. Ethereum ETFs, despite some positive daily flows, recorded large weekly declines, reducing their collective holdings.
BlackRock’s IBIT continues to anchor Bitcoin’s strength in the ETF market, while Ethereum funds struggle with redemptions. Together, the figures show how institutions are positioning differently between Bitcoin and Ethereum products, with Bitcoin sustaining its momentum and Ethereum encountering headwinds in allocation trends.
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About the Author: Peter Mwangi
