Summary
- US spot Bitcoin (BTC) ETFs recorded $2.4 billion in weekly net inflows, turning cumulative flows for the year positive.
- Inflows into BlackRock's IBIT, Fidelity's FBTC, Ark Invest and 21Shares' ARKB, and Morgan Stanley's MSBT extended the streak to seven consecutive trading days of net inflows.
- Spot Ethereum (ETH), Solana (SOL), and XRP ETFs also returned to or expanded net inflows, increasing each product's net inflows and total net assets.
Forecast Trend Report by Period
US spot Bitcoin exchange-traded funds posted their biggest weekly net inflow since October 2025, lifting cumulative flows for this year back into positive territory.
Data compiled by The Block from SoSoValue showed that US spot Bitcoin ETFs recorded a combined $2.4 billion in net inflows during the week of September 21 to September 25. That was the largest weekly haul since the $2.7 billion recorded in the week of October 10, 2025.
The latest inflows brought year-to-date net inflows to about $934.1 million. As of July 13, cumulative net outflows for the year had totaled about $5.8 billion. The flow trend reversed in a little more than two months.
By day, funds took in $999 million on Monday, September 21, leading the week's gains. That was followed by $714.7 million on Tuesday, September 22, $347 million on Wednesday, September 23, $190.6 million on Thursday, September 24, and $134.5 million on Friday, September 25.
That marked seven straight trading days of net inflows for spot Bitcoin ETFs. Total net inflows over that stretch reached about $3 billion.
By product, BlackRock's IBIT attracted the most money at about $1.2 billion. Fidelity's FBTC drew $701.7 million, while Ark Invest and 21Shares' ARKB added $294.7 million. Morgan Stanley's MSBT also posted $203.3 million in weekly net inflows, its largest since the fund's launch in April.
Spot Ethereum ETFs also rebounded, swinging from about $140 million in net outflows a week earlier to $689.9 million in net inflows. BlackRock's ETHA drew $326.2 million, Fidelity's FETH added $174 million, and Grayscale's Ethereum Mini Trust took in $100.3 million.
Spot Solana ETFs recorded $188.2 million in net inflows over the same period. On September 25, they logged $86.7 million in inflows, the largest single-day total since launch. Total net assets climbed to a record $1.5 billion. Spot XRP ETFs also posted $75.6 million in net inflows for the week.
