US Spot Bitcoin ETFs See $148.7M Outflow, Ending 9-Day Inflow Run

US spot Bitcoin ETFs posted a net outflow of $148.7 million, snapping a nine-day inflow streak that had drawn sustained institutional attention to the Bitcoin ETF market.

Nine-Day Inflow Streak Comes to an End

The $148.7 million net outflow marks the first negative flow day after nine consecutive sessions of net inflows into US spot Bitcoin ETFs. A nine-day inflow run represents sustained allocation activity across the fund category, making a single-day reversal of this size a data point worth tracking rather than dismissing. For related coverage, see Bitcoin Spot ETFs Gain $2.39B Weekly as YTD Flows Turn Positive.

ETF flow data, tracked daily by sources including CoinDesk, measures the net dollar movement into and out of spot Bitcoin products. A single outflow day does not itself signal a change in the broader demand trend, but it does interrupt what had been consistent positive momentum. Earlier in the week, US spot Bitcoin ETF inflows had already started to moderate, recording just $31 million on September 28, hinting at softening demand before the reversal arrived.

The scale of the streak itself had been notable. Per CryptoSlate, the US spot Bitcoin ETF complex has been working toward a new cumulative flow record following a prolonged reset period, meaning each inflow day carried weight in that broader recovery picture. For related coverage, see US Spot Bitcoin ETF Inflows Fall to $31M on Sept. 28.

What to Watch After the Reversal

The immediate signal to monitor is the next several sessions of daily net flow data. A single outflow day followed by a return to positive flows would suggest the streak break was a one-off event. Sustained outflows over multiple sessions would indicate a more meaningful shift in short-term allocation behavior. Weekly net inflow totals for spot Bitcoin ETFs have been broadly positive on a year-to-date basis, providing a wider context in which a single down day carries less weight. For related coverage, see Spot XRP ETFs Reach $121M in September Before Month-End.

Fund-level breakdown data, when available, would clarify which products drove the outflow. Without that granularity, the $148.7 million figure represents the aggregate net position across the US spot Bitcoin ETF category for the session. Investors tracking allocation trends should source updated daily figures from Farside Investors as subsequent sessions close. For related coverage, see Bitcoin Nears $86,000 as Spot Taker Flow Turns Positive.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.