BigGo Finance reported, in line with the supplied flash, that U.S. spot Ether ETFs saw about $320.1 million in net outflows in the week ending October 16, with BlackRock’s iShares Ethereum Trust ETF (ETHA) accounting for roughly $299 million of that total. A Farside Investors daily flow post for October 16 also showed the day’s entire $69.7 million category outflow coming from ETHA alone.

How Large Were the Reported Ether ETF Outflows?

The reported week ending October 16 showed about $320.1 million in net outflows from U.S. spot Ether ETFs, with roughly $299 million attributed to ETHA. On that basis, ETHA represented about 93% of the week’s reported withdrawals.

The available issuer split also suggests the selling was uneven. Farside Investors’ October 16 daily flow post listed a $69.7 million total net outflow for U.S. spot Ether ETFs, all assigned to ETHA, while the other listed funds were flat that day. Separately, Coinpaper, citing Farside data, reported that Fidelity’s FETH posted a $2.4 million inflow on October 15 even as ETHA led that day’s withdrawals.

Taken together, those figures answer the main reader question: the latest reported weekly status was a sharp Ether ETF outflow, but the redemptions were concentrated far more heavily in BlackRock’s fund than in the rest of the U.S. spot Ether ETF field.

Why ETHA Could Dominate the Outflow Without Every Fund Selling

The strongest supported answer is that the reported redemptions were concentrated in ETHA itself, not that every Ether ETF issuer saw the same level of withdrawals. The October 16 daily breakdown is the clearest example: Farside’s post showed the full day’s outflow coming from ETHA while the other listed funds printed zero.

An SEC filing excerpt for ETHA helps explain how that can happen. It says ETHA shares are created and redeemed only in 40,000-share baskets through Authorized Participants, with baskets exchanged for cash or ether, or for cash proceeds tied to the trust’s ether holdings. In practice, that means trust-level outflows reflect basket redemptions at the fund structure level rather than direct cash withdrawals by ordinary exchange-traded shareholders.

That mechanism does not identify who redeemed or why. But it does show why one large product can dominate category flow data even when other Ether ETFs are flat or mildly positive on the same day or during the same week.

How the Ether and Bitcoin ETF Comparison Should Be Read

The supplied report says U.S. spot Bitcoin funds lost $228.4 million in the same week, less than the reported $320.1 million withdrawn from Ether funds. That comparison is useful as a reported cross-asset snapshot, but it should stay attributed rather than treated as fully settled.

The reason is that a supplied Farside Bitcoin table excerpt for October 13 through October 16 produces a different total when those daily figures are added together. The available material does not establish whether that gap comes from timing, coverage, revisions or a different methodology, so the Bitcoin weekly number should be read as part of the reported account rather than as an independently reconciled total.

For the Ether side, the cleaner near-term signal is issuer concentration: whether subsequent daily flow tables continue to show ETHA as the main source of redemptions, or whether outflows start spreading more clearly across the broader U.S. spot Ether ETF group.