US spot Bitcoin ETFs shed $449 million in net outflows over three trading days through September 10, led by ARK 21Shares' ARKB fund. The reversal came the same week a fresh US inflation report landed roughly in line with forecasts, briefly knocking bitcoin's price lower before it recovered.
US spot Bitcoin ETFs posted $449 million in net outflows over three trading days through September 10, snapping the funds' strongest inflow run of 2026. Bitcoin's price also swung that week after a batch of US inflation data landed the following day.
Outflows snowball into Thursday
The selling built steadily through the week. According to Crypto Briefing, net redemptions opened at $46.6 million on September 8. The pace more than doubled to $120.2 million on September 9. Then $282.6 million left the funds on September 10. That marked the largest single-day outflow since July 13.
ARKB, the ARK 21Shares Bitcoin ETF, accounted for $164 million of that day's total. Grayscale's GBTC added $36 million, and Fidelity's FBTC added $33.6 million. Bitcoin itself traded near or below $80,000 through the selloff, dipping closer to $77,000 as the redemptions accelerated.
Inflation data adds to the swings
A day after the ETF slide, bitcoin briefly dropped when the Bureau of Labor Statistics released August CPI data. It then recovered to over $77,000 within hours. Headline CPI matched forecasts at 3.4% year-over-year and 0.4% month-over-month. Core CPI rose 2.4% annually, with the 0.3% monthly gain topping the 0.2% forecast.
The CPI print followed Thursday's PPI report, which showed a 5.4% jump, the first of two inflation releases that week. With both reports out, attention now turns to the Federal Reserve's September 15-16 meeting, where markets currently expect a 25-basis-point rate hike.
The bigger flow picture
Thursday's reversal cut into a stronger run: the funds had pulled in $3.8 billion over the prior three weeks. That run included a $730.9 million single-day haul on September 3, during a week that took in about $987 million. Cumulative net inflows since the funds launched stand at $55.17 billion, against $97.5 billion in total assets. That's about 6.28% of bitcoin's market capitalization. Spot Ether ETFs also bled $29.8 million on Thursday, and spot Solana ETFs lost $483,000. Morgan Stanley's MSBT was the only product to post inflows during the three-day stretch.
Sources: Cointelegraph, Crypto Briefing, CryptoPotato
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