Hassan Maishera
TL;DR
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U.S. spot Bitcoin ETFs attracted $2.4 billion in the week ending September 25, their largest weekly inflow since October 2025.
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The inflows lifted the funds’ 2026 net total to about $934 million, reversing a year-to-date deficit of roughly $5.8 billion in July.
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Monday accounted for $999 million of the week’s Bitcoin ETF inflows, while BlackRock’s IBIT led individual funds with $1.2 billion.
U.S. spot Bitcoin exchange-traded funds recorded their strongest week of inflows in nearly a year, attracting $2.4 billion in the week ending September 25, according to SoSoValue data.
The total was the highest since the week ending October 10, 2025, when the funds drew $2.7 billion. It also pushed their 2026 net flows into positive territory.
Bitcoin ETFs have now taken in about $934.1 million this year, after sitting roughly $5.8 billion in the red as recently as July 13.
Monday Set the Pace for Bitcoin ETF Inflows
The 12 Bitcoin ETFs tracked by SoSoValue drew $999 million on Monday, their largest single-day inflow since October 6, 2025. Inflows continued through Friday, although the daily amounts declined: $714.7 million on Tuesday, $347 million on Wednesday, $190.6 million on Thursday and $134.5 million on Friday.
Friday marked the seventh consecutive day of inflows, a streak worth about $3 billion that began on September 17. The previous week had ended with just $6.2 million in net inflows.
BlackRock’s IBIT led last week’s gains with $1.2 billion, followed by Fidelity’s FBTC at $701.7 million. Ark and 21Shares’ ARKB added $294.7 million, while Morgan Stanley’s MSBT drew $203.3 million, its largest weekly total since launching in April.
Bitcoin ETFs have attracted $57.6 billion in cumulative net inflows since launch. Their combined net assets stood at $108.4 billion on Friday. Trading volume, however, fell to $15 billion from $16.2 billion the previous week.
Bloomberg ETF analyst Eric Balchunas linked the recent surge in inflows to the U.S. Treasury Department’s plan to increase buybacks of long-dated bonds. That is his interpretation of the market move, rather than an established cause of the ETF inflows.
Ether ETFs Reverse the Previous Week’s Outflows
U.S. spot Ether ETFs took in $689.9 million during the same week, recovering from roughly $140 million in outflows the week before. Monday’s $270 million inflow was their largest daily total since October 7, 2025.
BlackRock’s ETHA led the Ether funds with $326.2 million in weekly inflows. Fidelity’s FETH followed with $174 million, while Grayscale’s Ethereum Mini Trust drew $100.3 million.
The funds’ year-to-date inflows now stand at about $1.6 billion. They held $17.8 billion in net assets on Friday, although weekly trading volume declined to $4.8 billion from $6.9 billion.
Solana ETFs Post Record Friday Inflow
Spot Solana ETFs also saw a strong week, drawing $188.2 million. That was their second-highest weekly total, behind only the $199.2 million recorded during their launch week.
Friday’s $86.7 million inflow set a single-day record for the products, with Bitwise’s BSOL accounting for $55.7 million. Combined Solana ETF assets reached a record $1.5 billion, up from $1.2 billion a week earlier.
Elsewhere, spot XRP ETFs attracted $75.6 million for the week, while Grayscale’s Zcash fund briefly exceeded $1 billion in net assets on Thursday.
