U.S. Spot Bitcoin ETFs Post $2.4B Weekly Inflow, Largest Since October 2025

Key facts

• U.S. spot Bitcoin ETFs attracted roughly $2.4 billion in net inflows in the week ended September 25, 2026, the largest since October 2025
• 2026 flows swung from nearly $5.8 billion in net outflows in July to approximately $934 million in net inflows
• BlackRock's IBIT led weekly inflows with more than $1.2 billion, followed by Fidelity's FBTC at about $701.7 million and ARK Invest/21Shares' ARKB at $294.7 million
• Morgan Stanley's MSBT drew roughly $203.3 million, its strongest week since launching in April
• September 21 saw about $999 million in single-day net inflows, the best since October 6, 2025, extending the streak to seven consecutive trading days totaling roughly $3 billion
• Bitcoin spot ETFs hold approximately $108.4 billion in assets under management, with cumulative net inflows of about $57.6 billion since January 2024
• U.S. Ethereum ETFs took in about $689.9 million for the week, and Solana ETFs drew $86.7 million on September 25 with record assets of $1.5 billion
• Bitcoin peaked at $87,402.34 on September 21 before retreating toward $83,000 as the 10-year Treasury yield hit 5.23% on September 24, its highest since 2007