Spot Ethereum exchange-traded funds took in about $3.9 billion in August whereas U.S. Bitcoin ETFs posted roughly $750 million in internet redemptions.
The cut up extends a summer season stretch during which Ethereum funds have persistently drawn capital since late July, as Bitcoin merchandise noticed intermittent outflows.
The rotation follows a file July for Ethereum autos, with about $5.4 billion in internet inflows that introduced cumulative investor demand near parity with Bitcoin funds for the month.
Momentum accelerated into mid-August, together with the primary single day above $1 billion of internet creations for spot ETH ETFs on Aug. 11, in line with VettaFi.
Every day flows stay uneven, however the August ledger closed with Ethereum firmly constructive and Bitcoin destructive on a internet foundation, per SoSoValue’s issuer-reported tallies.
Provide absorption is a part of the backdrop. U.S. spot Bitcoin ETFs now custody round 1.29 million BTC throughout issuers, roughly 6–7% of the circulating provide.
On the Ethereum facet, U.S. spot ETFs maintain simply over 6.3 million ETH, slightly above 5% of the circulating provide in contrast with the present issuance of round 120.7 million ETH; the holdings share is mirrored on group datasets resembling Dune’s “Ethereum Spot ETF Overview.”
A rising ETF footprint tightens the freely tradable float over time, a dynamic that may affect worth discovery if creations outpace redemptions.
Worth motion has mirrored the movement hole on the margin. The ETH/BTC pair pushed to a 2025 excessive towards the top of August, extending Ethereum’s relative outperformance since early summer season.
In late August, JPMorgan framed the divergence round 4 themes, together with regular ETF demand, a pickup in direct company treasury allocations to ETH, a friendlier regulatory stance on staking in contrast with earlier expectations, and the mechanics of creations and redemptions now in place for the funds.
Flows have been uneven day after day. The primary week of August featured one of many largest single-day Bitcoin outflow prints since launch, and Ethereum briefly noticed redemptions that interrupted a multiday streak.
These reversals have been later offset by creations into ETH autos round mid-month and a late-August bid that trimmed BTC’s weekly outflow streak, per the SoSoValue dashboards for every class. The variability emphasizes how a handful of enormous approved members can swing day by day prints even because the month-to-month tape exhibits a transparent cut up.
The This fall turning circle?
Into September and the fourth quarter, the check is whether or not August’s sample persists.
ETF wrappers now maintain a fabric share of every asset’s provide, and Ethereum’s footprint is rising from a decrease base.
JPMorgan wrote that Ethereum holdings in each ETFs and company treasuries might proceed to develop, utilizing Bitcoin’s bigger share of provide locked in these channels as a benchmark for what might develop in ETH.
For now, the August scorecard reads as a rotation month: about $3.9 billion into Ethereum funds in opposition to about $0.75 billion out of Bitcoin funds.
If Ethereum ETFs repeat August’s tempo into the fourth quarter, cumulative internet inflows would exceed $11 billion by year-end, almost doubling present ETF holdings to greater than 10% of circulating provide when measured in opposition to about 120.7 million ETH.
That scale would deliver Ethereum’s ETF penetration near Bitcoin’s current share, which sits close to 6–7%, reshaping the benchmark allocations establishments reference when weighing crypto publicity.
Such a shift would additionally depart much less tradable Ethereum in spot markets, doubtlessly intensifying liquidity squeezes during times of directional demand.
The impact wouldn’t be restricted to cost, since bigger ETF balances additionally enhance the pool of belongings ruled by the redemption and creation mechanics that dictate arbitrage, custody, and settlement flows.
If inflows maintain, This fall stands out as the first quarter the place Ethereum ETFs transfer from a catch-up section to an equal-weighted seat alongside Bitcoin ETFs in portfolio building, with implications for a way issuers, market makers, and treasury desks handle crypto threat into 2026.