Key Takeaways
- • US spot Bitcoin ETFs attracted about USD 3 billion in net inflows over a seven-day streak ending September 25, 2026, per SoSoValue data, with the week's USD 2.39 billion the strongest weekly figure since October 2025.
- • BlackRock's iShares Bitcoin Trust led with roughly USD 1.2 billion raised in the week, followed by Fidelity's Wise Origin Bitcoin Fund at USD 701.7 million and ARK 21Shares at USD 294.7 million.
- • Q3 2026 net inflows reached USD 6.34 billion, reversing close to USD 5 billion in second-quarter withdrawals, according to Cointelegraph.
- • Total US spot Bitcoin ETF assets stood at about USD 105.84 billion as of October 12, 2026, with cumulative net inflows of USD 57.11 billion since launch in January 2024.
- • Early October outflows, including USD 484.9 million withdrawn on October 7 and USD 244.1 million on October 8, ended the September buying run and underscored sensitivity to volatility.
Summary
US spot Bitcoin exchange-traded funds recorded a strong run of inflows in September 2026, accumulating about USD 3 billion across seven consecutive trading days through September 25, according to SoSoValue data. The week's net inflows of USD 2.39 billion were the strongest weekly figure since October 2025. Daily inflows were led by September 21, which brought in nearly USD 999 million, followed by USD 714.7 million on September 22 and USD 347 million on September 23.
BlackRock's iShares Bitcoin Trust was the largest vehicle, attracting around USD 1.2 billion during the week. Fidelity's Wise Origin Bitcoin Fund took in USD 701.7 million, and ARK 21Shares' fund garnered USD 294.7 million. Per Cointelegraph, Bitcoin ETFs were net buyers of USD 6.34 billion in the third quarter of 2026, with September contributing USD 2.65 billion, August USD 3.52 billion and July USD 172 million. This reversed close to USD 5 billion in withdrawals during the second quarter. Bitcoin's price rose 42.71% over the past three months, reflecting both higher prices and renewed demand.
The September buying run ended on September 30, when funds saw USD 148.7 million in withdrawals after nine consecutive inflow sessions that brought cumulative inflows to USD 3.1 billion. Outflows continued into early October, with USD 484.9 million withdrawn on October 7 and USD 244.1 million on October 8. On October 9, net inflows of USD 21.1 million were driven entirely by BlackRock's IBIT, which pulled in USD 22.4 million after a two-day outflow streak.
As of October 12, 2026, US spot Bitcoin ETFs held total assets of about USD 105.84 billion, with net inflows of USD 57.11 billion since the funds launched in January 2024. The article characterizes the pattern as a gap between expanding institutional access and less consistent investment demand, noting that concentration in a small number of large funds can amplify volatility. Investor confidence, macroeconomic conditions and liquidity are cited as key factors for market stability.
BlackRock's iShares Bitcoin Trust was the largest vehicle, attracting around USD 1.2 billion during the week. Fidelity's Wise Origin Bitcoin Fund took in USD 701.7 million, and ARK 21Shares' fund garnered USD 294.7 million. Per Cointelegraph, Bitcoin ETFs were net buyers of USD 6.34 billion in the third quarter of 2026, with September contributing USD 2.65 billion, August USD 3.52 billion and July USD 172 million. This reversed close to USD 5 billion in withdrawals during the second quarter. Bitcoin's price rose 42.71% over the past three months, reflecting both higher prices and renewed demand.
The September buying run ended on September 30, when funds saw USD 148.7 million in withdrawals after nine consecutive inflow sessions that brought cumulative inflows to USD 3.1 billion. Outflows continued into early October, with USD 484.9 million withdrawn on October 7 and USD 244.1 million on October 8. On October 9, net inflows of USD 21.1 million were driven entirely by BlackRock's IBIT, which pulled in USD 22.4 million after a two-day outflow streak.
As of October 12, 2026, US spot Bitcoin ETFs held total assets of about USD 105.84 billion, with net inflows of USD 57.11 billion since the funds launched in January 2024. The article characterizes the pattern as a gap between expanding institutional access and less consistent investment demand, noting that concentration in a small number of large funds can amplify volatility. Investor confidence, macroeconomic conditions and liquidity are cited as key factors for market stability.
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