U.S. spot Bitcoin and Ether exchange-traded funds absorbed a combined $1.1 billion in net inflows last week, their strongest joint weekly intake since April, according to SoSoValue data. The rebound was driven overwhelmingly by Bitcoin products, though Ether funds also recorded their best weekly result in roughly four months.
Spot Bitcoin ETFs drew about $853.5 million over the five trading sessions, the largest weekly inflow since the week ending April 17, when the group took in $996.4 million. Spot Ether ETFs added approximately $244.9 million, also their strongest showing since that April period.
The figures mark a sharp improvement from the year-to-date flow picture. SoSoValue showed Bitcoin ETFs had recorded roughly $4.44 billion in net outflows for 2026 through Friday, while Ether ETFs were down about $873 million over the same period. One strong week does not erase those earlier withdrawals, but it reduces the scale of the deficit and indicates renewed demand for listed crypto exposure.
BlackRock’s IBIT dominated bitcoin ETF demand
BlackRock’s iShares Bitcoin Trust, trading under the ticker IBIT, accounted for $693.7 million of the week’s Bitcoin ETF inflows, or more than 80% of the category total, according to SoSoValue. Fidelity’s Wise Origin Bitcoin Fund, FBTC, added $116.4 million, representing about 13% of the weekly intake.
The concentration of flows in IBIT and FBTC suggests that demand was focused on the largest, most established products rather than evenly spread across the full group of U.S. Bitcoin ETFs. That pattern can amplify the influence of a few issuers on daily fund-flow headlines, even when the overall ETF category is attracting money.
Bitcoin ETFs posted positive net flows in each of the five trading sessions. Wednesday produced the largest daily intake, at $244.4 million, followed by $211.5 million on Tuesday. Thursday added $128.7 million and Friday brought in $98.9 million, based on SoSoValue’s figures.
The slowdown in daily inflows toward the end of the week arrived as Bitcoin rose. SoSoValue data showed Friday’s intake was less than half Wednesday’s total, despite Bitcoin reaching an August high above $65,300 on Friday. Bitcoin was trading near $65,100 on Saturday morning, after gaining about 3% over the week.
Bitcoin’s Friday move also coincided with weaker U.S. employment U.S. payrolls fell by 23,000 against forecasts for an 80,000 increase, according to the figures cited in the source material. The weaker reading added to risk-asset volatility, though ETF flow data alone cannot establish why buyers or sellers acted on a given day.
wallet exploit adds a self-custody backdrop
Eric Balchunas, ETF analyst at Bloomberg Intelligence, linked daily inflows in IBIT, FBTC and other Bitcoin funds to concerns surrounding a Coldcard wallet exploit in a Friday post on X. The vulnerability surfaced on July 30 and has been associated with at least $111 million in thefts, while Galaxy Research estimated total losses could potentially exceed $130 million.
The episode has given the week’s ETF data an unusual backdrop. Listed funds allow holders to gain price exposure without personally managing seed phrases, wallet firmware or private keys. That does not mean the inflows can be treated as a direct migration from self-custody; the fund data records subscriptions and redemptions, not the prior storage choices of each buyer. Yet a high-profile security incident can make the operational differences between direct token ownership and an ETF more visible.
K33 measured about 890,000 BTC moving onchain during the seven-day period tied to the exploit, a 2026 high. Elevated onchain movement can reflect a range of activity, including transfers between wallets, exchange deposits, internal platform transactions and attempts by holders to move funds after a security concern. It does not, on its own, show that coins were sold or that ETF purchases came from affected wallet owners.
Bitcoin ETF trading volume reached roughly $8.19 billion for the week, down 9% from $9.02 billion in the prior week, according to SoSoValue. The week ending July 24, at $8.05 billion, was the only lower full trading week since October 2024. The combination of rising net inflows and declining trading volume points to steady fund creation demand without a broad rise in short-term ETF turnover.
ether funds extend their longest 2026 inflow streak
Spot Ether ETFs posted net inflows for a fifth consecutive week, their longest positive streak of 2026 under the same dataset. Thursday was the strongest session, with $92.2 million in net additions. Monday recorded a $11.4 million outflow, the category’s only negative daily result during the week.
Ether ETF trading volume was about $2.38 billion, down 21% from the prior week. The weaker volume alongside stronger weekly flows resembles the Bitcoin ETF pattern: less trading activity overall, but enough net buying to lift weekly asset flows.
SoSoValue put Ether ETF net assets at $10.74 billion on Friday, compared with $11.46 billion in cumulative net inflows. The difference of roughly $711 million indicates that the market value of the assets held by the funds remained below the capital that had entered them cumulatively, although the gap had narrowed from around $2 billion in mid-June.
Ether traded near $1,920 on Saturday morning. Separate onchain data from CryptoQuant showed wallets holding between 10,000 and 100,000 ETH had increased their combined balances to a record 19.6 million ETH, from about 14 million ETH in mid-2025. Those addresses may include a mix of large holders and entities, and the metric measures wallet balances rather than ETF activity.
The week’s flows leave Bitcoin and Ether ETFs with a more constructive short-term picture than their year-to-date totals suggest. Bitcoin funds supplied the bulk of the $1.1 billion intake, while Ether products built a five-week run that has narrowed the gap between their cumulative inflows and current asset value.
For deeper context on ETF-driven demand, explore how ETFs work and shape crypto market flows today.
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