U.S. Spot Bitcoin ETFs See $2.4 Billion in Weekly Inflows, Most Since October 2025

U.S. spot Bitcoin exchange-traded funds posted their biggest weekly net inflow since October 2025, pushing cumulative flows for this year back into positive territory.

The Block, citing SoSoValue data on Sept. 26, reported that U.S. spot Bitcoin ETFs recorded a combined $2.4 billion in net inflows during the week of Sept. 21 to Sept. 25. That marked the largest weekly inflow since the $2.7 billion posted in the week of Oct. 10, 2025.

The latest inflows lifted 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, but the trend reversed in a little over two months.

On a daily basis, Monday, Sept. 21, led the week with $999 million in inflows. That was followed by $714.7 million on Tuesday, Sept. 22, $347 million on Wednesday, Sept. 23, $190.6 million on Thursday, Sept. 24, and $134.5 million on Friday, Sept. 25. Spot Bitcoin ETFs have now posted net inflows for seven consecutive trading sessions, with cumulative inflows of about $3 billion over that period.

By fund, BlackRock's IBIT drew the most money at about $1.2 billion. Fidelity's FBTC took in $701.7 million, while ARK Invest and 21Shares' ARKB attracted $294.7 million. Morgan Stanley's MSBT also posted weekly net inflows of $203.3 million, its largest since the fund launched in April.

Spot Ether ETFs also rebounded, shifting from about $140 million in net outflows a week earlier to $689.9 million in net inflows. BlackRock's ETHA brought in $326.2 million, Fidelity's FETH drew $174 million, and Grayscale's Ethereum Mini Trust added $100.3 million.

Spot Solana ETFs recorded $188.2 million in net inflows over the same period. On Sept. 25, they posted a record one-day inflow of $86.7 million since launch, while total net assets rose to an all-time high of $1.5 billion. Spot XRP ETFs also logged $75.6 million in weekly net inflows.