The U.S.-listed spot crypto ETFs attracted roughly $1.24 billion in fresh capital between Aug. 31 and Sep. 4. The lion’s share went to Bitcoin (BTC) funds, which recorded $986.85 million in n
The U.S.-listed spot crypto ETFs attracted roughly $1.24 billion in fresh capital between Aug. 31 and Sep. 4.
The lion’s share went to Bitcoin (BTC) funds, which recorded $986.85 million in net inflows and extended their positive streak to a third consecutive week.
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Inflows into spot Bitcoin ETFs during Aug. 31-Sep. 4 increased by nearly 7% compared with the previous week. Over the past three weeks, the funds have now accumulated $3.82 billion in net new capital, marking their strongest run so far this year.
The last week was hardly smooth, however. Bitcoin ETFs opened Monday with $216.70 million in inflows before posting $236.46 million in net outflows on Tuesday. Momentum then reversed again, with $101.15 million flowing into the products on Wednesday.
Thursday delivered the strongest session of the week, generating $730.87 million in net inflows, followed by another $174.60 million on Friday.
US spot Bitcoin ETF weekly inflows and outflows according to SoSoValuehttps://sosovalue.com/assets/etf/us-btc-spot
According to SoSoValue, the total net assets held by US spot Bitcoin ETFs reached $101.25 billion by the end of the week. That means the funds now account for approximately 6.33% of Bitcoin’s total market capitalization.
Since their launch, US spot Bitcoin ETFs have generated cumulative net inflows of $55.62 billion.
BlackRock’s IBIT dominated the weekly flows with $691.51 million, representing roughly 70% of all net inflows into Bitcoin ETFs during the period.
The ARK 21Shares Bitcoin ETF ranked second with $137.74 million, followed by Fidelity’s FBTC at $94.88 million. The Grayscale Bitcoin Mini Trust attracted another $88.62 million.
Despite the strong inflow figures, overall trading activity declined. Weekly Bitcoin ETF trading volume fell from almost $19 billion to around $14.5 billion, suggesting that the surge in net buying was not accompanied by a broader increase in turnover.
In August alone, Bitcoin ETFs attracted $3.52 billion, their strongest monthly result since September 2025. Even so, cumulative flows since the beginning of the year remain approximately $1 billion in negative territory.
Ethereum ETFs also remained in positive territory, attracting $218.41 million during the week, according to SoSoValue. It was their third consecutive week of net inflows.
Demand nevertheless weakened considerably compared with the previous week, when Ethereum ETFs recorded $824.42 million in fresh capital.
BlackRock’s ETHA led Ethereum-related products with $136.44 million in net inflows, followed by staking-focused ETHB with $81.85 million. Grayscale’s ETHE moved in the opposite direction, recording $36.97 million in net outflows.
Trading volume across Ethereum ETFs also declined, falling from $6.3 billion in the previous week to approximately $4.1 billion.
Elsewhere in the crypto ETF market, XRP products attracted $18.96 million, while Solana ETFs recorded $6.18 million. Hyperliquid products added another $12.27 million.
Demand for XRP and Solana ETFs weakened particularly sharply on a week-over-week basis. During the previous week, the two categories had attracted $110.49 million and $153.87 million respectively.
The latest wave of ETF inflows initially coincided with a significant recovery in the Bitcoin price. BTC climbed to around $81,700 on Sep. 3 as institutional demand accelerated.
Bitcoin was trading at $79,518 at the time of writing, as per Decibel.
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