Ether ETF weekly inflows fall 74% as bitcoin draws $987 million

U.S. ether exchange-traded funds ended the week through September 4, 2026, with $215.3 million in net inflows, down about 74% from the preceding week, while bitcoin funds attracted $986.7 million. The completed weekly figures, reported on September 5, showed demand continuing through both investment channels but becoming substantially weaker for ether.

This is retrospective coverage prepared on September 7 for Coinburn’s missed September 5 close edition. The measurement window is the five U.S. trading sessions from August 31 through September 4; September 5 was the reporting date, not an additional fund-flow session. Coinburn rechecked the historical rows against Farside Investors’ live tables today.

Ether’s slowdown changes the weekly picture

Farside’s ether table shows $815.7 million in net inflows during August 24–28. Comparing that total with the following week’s $215.3 million produces a 73.6% decline, calculated from the published daily figures. This measures the change in net subscriptions across the tracked U.S. ether products, not ether’s price performance or a decline in assets under management.

The direction remained positive overall, but the path was uneven. Ether funds recorded a net withdrawal on September 2 before returning to inflows in the final two sessions. The distinction matters: a positive weekly total can coexist with a marked loss of momentum and individual days of selling.

Crypto.news reported both weekly totals on September 5 at 09:50 UTC. Its contemporaneous report corroborates that the completed-week figures were public on the assignment date, although it also relies on Farside and therefore does not constitute an independent fund-flow dataset.

Bitcoin’s total relied on one session

Bitcoin funds’ $730.8 million inflow on September 3 represented approximately 74.1% of their entire weekly net intake, Coinburn calculates from Farside’s daily totals. The other four sessions together contributed $255.9 million after netting withdrawals against subscriptions.

That concentration limits how broadly the headline total can be interpreted. The week demonstrated positive aggregate demand for bitcoin fund exposure, but the arithmetic alone cannot establish that buying was steady, identify investors’ motives or demonstrate that the same pace would continue.

The completed-week comparison extends beyond Coinburn’s earlier report on September 3’s unusually large inflow. It places that session inside a full accounting period and shows why bitcoin’s result and ether’s slowdown should be assessed separately.

What fund flows can establish

Exchange-traded products provide a securities-market route to crypto exposure. BlackRock describes its iShares Bitcoin Trust ETF as seeking to reflect bitcoin’s price performance while handling operational and custody complexities associated with direct ownership. Its disclosures also distinguish the trust from investment companies registered under the Investment Company Act of 1940.

Buying those shares introduces another measurement layer. BlackRock explains that shares trade at market prices, which can differ from net asset value. Consequently, a fund’s share price, its underlying asset valuation and its reported net flows answer different questions. Positive flows are not a promise of positive investment returns.

The weekly comparison here uses dollar-denominated net-flow estimates, without adding a token-price claim or attributing the results to a particular macroeconomic release. Farside says its tables are generated automatically and may contain inaccuracies. Historical entries can also be revised; the figures checked today are not a preserved snapshot of the tables as displayed on September 5.

The evidence supports a narrower conclusion than uninterrupted enthusiasm for crypto funds: both categories attracted net capital over the completed week, but ether’s intake slowed sharply and bitcoin’s result was concentrated in a single session.