US spot Bitcoin ETFs post $462.7M outflows as Ether ETFs flip to $196.9M inflows
Bitcoin redemptions hit all four sessions in a holiday-shortened week, while Ether’s gain came from a $216.4M Friday led by ETHA.
US spot Bitcoin ETFs recorded $462.7 million in net outflows across four sessions last week, snapping a three-week inflow streak. US spot Ether ETFs moved the other way, finishing the same Tuesday–Friday window with $196.9 million in net inflows after a single $216.4 million Friday surge.
Key Takeaways
- US spot Bitcoin ETFs saw $462.7M in net outflows last week, ending a three-week run of net creations.
- Redemptions hit every session from Tuesday through Friday, with Thursday’s $282.7M the largest daily withdrawal since July.
- ARKB accounted for $234.2M of the weekly Bitcoin ETF outflows, with GBTC at $129.1M and IBIT and FBTC also negative.
- US spot Ether ETFs finished the same four-session window at +$196.9M after a $216.4M Friday led by BlackRock’s ETHA at $148.8M.
Bitcoin ETFs Snap a Three-Week Inflow Streak as Ether ETFs Turn Positive
US spot Bitcoin ETFs flipped to $462.7 million of net outflows across the Tuesday–Friday window of a holiday-shortened week. The prior three weeks had been net positive, and the reversal matters because it changes the mechanical flow backdrop that traders use as a proxy for marginal demand.
ETF “net flows” are the net dollars created into or redeemed out of the funds over a period. Creations typically mean new shares were issued against incoming cash and spot purchases. Redemptions mean shares were pulled and the underlying exposure was reduced.
Ether ETFs printed the opposite tape. US spot Ether ETFs recorded $196.9 million in net inflows over the same four sessions. The divergence was not subtle. Bitcoin bled steadily across multiple days, while Ether’s weekly number was rescued late.
The week’s calendar friction is real. The specific holiday and exact dates were not specified, but the reduced session count compresses flow signals and can exaggerate single-day prints.
Where the Bitcoin Selling Concentrated: ARKB, GBTC, IBIT and the Thursday Flush
The Bitcoin outflow week read as broad-based in time and concentrated in product. Time first. Outflows ran across all four trading sessions from Tuesday through Friday, per Farside Investors data. That is not a one-day wobble.
The inflection was Thursday. US spot Bitcoin ETFs posted $282.7 million of net outflows that day, described as the largest daily withdrawal since July. That is the kind of print that usually reflects coordinated redemption activity rather than passive drift.
Friday did not reverse it. Outflows slowed to $13.2 million, but the streak still extended to four consecutive sessions, per SoSoValue. The pace changed. The direction did not.
Product concentration is the second tell. ARK 21Shares Bitcoin ETF (ARKB) led weekly withdrawals with $234.2 million in net outflows. Grayscale’s Bitcoin Trust ETF (GBTC) followed with $129.1 million. BlackRock’s iShares Bitcoin Trust ETF (IBIT) recorded $52.5 million in net outflows, and Fidelity’s Wise Origin Bitcoin Fund (FBTC) lost $50.7 million.
That distribution matters because it points to counterparties. ARKB and GBTC doing the heavy lifting suggests the week’s redemptions were driven by a subset of large vehicles rather than evenly spread across the entire complex. It is still a complex-wide reversal, but the pressure was not uniform.
One stabilizer remains on the board. Despite the weekly reversal, spot Bitcoin ETFs were still positive month-to-date for September with about $307.3 million in net inflows through Friday. The weekly hit did damage, but it did not erase the month’s cushion.
Ether’s Week Was One Day: ETHA Leads a $216.4M Friday That Flipped the Tape
Ether’s weekly inflow headline was real, but the path there was lopsided. Flows were mixed earlier in the week: $24.3 million of outflows on Tuesday, $34.7 million of inflows on Wednesday, and $29.9 million of outflows on Thursday.
Friday did the work. US spot Ether ETFs drew $216.4 million of net inflows in that single session, which was large enough to flip the full Tuesday–Friday total to +$196.9 million.
The beneficiary was clear. BlackRock’s iShares Ethereum Trust ETF (ETHA) led Friday’s inflows with $148.8 million. 21Shares Core Ethereum ETF added $29.1 million.
The contrast with Bitcoin is the point. Bitcoin’s outflows were a four-day sequence with a Thursday flush. Ether’s inflow week was effectively one late-week impulse. That difference changes how much signal traders should assign to the weekly totals. A multi-day pattern is harder to dismiss as noise. A single-day reversal can be positioning, a one-off allocator ticket, or a temporary basis-driven trade.
Next Week’s Flow Test: Can ETH Inflows Persist While BTC Stays Positive MTD?
The next full trading week is the first clean retest after a holiday-shortened tape. For Bitcoin ETFs, the immediate question is whether the complex can return to net inflows after four straight outflow sessions and a $282.7 million Thursday print.
The second check is magnitude. Any repeat daily outflow near the $282.7 million level would read less like a pause and more like accelerating redemptions.
For Ether ETFs, the test is persistence. The week’s +$196.9 million was driven by Friday’s $216.4 million surge, and ETHA accounted for the majority of that day’s creations. If inflows stay positive but remain concentrated in ETHA, that still supports the headline, but it also narrows the buyer base.
Bitcoin’s month-to-date cushion is the other scoreboard. September-to-date flows were about +$307.3 million through Friday. If that number erodes quickly, the weekly reversal starts to look less like digestion and more like a trend change.
How I’d Use This Divergence as a Positioning Signal
The threshold that matters is whether Bitcoin ETF flows can stabilize in a normal five-session week after four straight outflow days and a $282.7 million flush. A one-week reversal can be a reset. A second week with similar cadence is a regime shift.
Ether’s print is encouraging, but it is also fragile because it was effectively one day. If ETH inflows persist beyond a single $216.4 million Friday and ETHA keeps leading without the rest of the complex rolling over, the setup starts to look structural rather than narrative-driven. The divergence matters in practical terms only if it repeats with the same direction and a broader base of participation.
