Bitcoin ETFs turn positive in 2026 with $2.4 billion weekly inflow

U.S. spot bitcoin ETFs turned positive for 2026 after taking in $2.4 billion in the week ending Sept. 25. The inflow was the funds' largest for any week since October 2025. The last larger weekly inflow was $2.7 billion in the week ending Oct. 10, 2025. Bitcoin ETF flows were about $5.8 billion negative for the year as recently as July 13. Last week's inflows left the funds about $934.1 million positive for the year. The funds' 2026 flows turned positive on Tuesday. The 12 publicly traded bitcoin ETFs tracked by SoSoValue received $999.0 million on Monday. Monday's inflow was the funds' largest daily inflow since Oct. 6, 2025. The funds received $714.7 million on Tuesday. They received $347.0 million on Wednesday. They received $190.6 million on Thursday. They received $134.5 million on Friday. Friday marked the funds' seventh straight day of inflows. That run totaled $3.0 billion and started on Sept. 17. BlackRock's IBIT led the week with $1.2 billion in inflows. IBIT's previous weekly high since October 2025 was $1.3 billion in the week ending Aug. 21. Fidelity's FBTC received $701.7 million. That was FBTC's largest weekly total since the week of Sept. 8, 2025. Ark and 21Shares' ARKB received $294.7 million. Morgan Stanley's MSBT received $203.3 million. That was MSBT's largest weekly inflow since its April launch. Cumulative bitcoin ETF net inflows since launch reached $57.6 billion. Net assets totaled $108.4 billion as of Friday. Eric Balchunas linked the $4.6 billion cash inflow to the Treasury Department's plan to increase buybacks of long-dated bonds. Nate Geraci said the funds had received $5.3 billion since the Treasury first announced the buybacks. Geraci said Monday's $1 billion inflow was the ninth-largest ever. Bitcoin ETF trading volume was $15.0 billion for the week. The previous week's trading volume was $16.2 billion. Spot ether ETFs received $689.9 million over the same week. They had lost about $140.0 million the previous week. Ether ETFs received $270.0 million on Monday. That was their largest daily inflow since Oct. 7, 2025. BlackRock's ETHA led ether ETF inflows with $326.2 million for the week. Fidelity's FETH received $174.0 million. Grayscale's Ethereum Mini Trust received $100.3 million. BlackRock's ETHB received $47.5 million. Ether ETFs were about $1.6 billion positive for the year. They held $17.8 billion in net assets. Their cumulative inflows since launch reached $13.9 billion. Ether ETF trading volume fell to $4.8 billion from $6.9 billion the previous week. U.S. spot Solana ETFs received $86.7 million on Friday. That was their largest single-day inflow since the products launched in late October 2025. Bitwise's BSOL accounted for $55.7 million of Friday's inflow. Solana funds received $188.2 million for the week. Their launch week brought in $199.2 million. Combined Solana fund assets reached a record $1.5 billion on Friday. The funds held $1.2 billion a week earlier. Bitwise's BSOL held about 71% of the combined assets. Spot XRP ETFs received $75.6 million for the week. Grayscale's Zcash fund briefly exceeded $1.0 billion in net assets on Thursday.