US Spot-Bitcoin ETFs See $265.37 Million in Net Outflows
According to SoSoValue, 13 U.S. spot-bitcoin ETFs had combined net outflows of $265.37 million on Aug. 31. BlackRock’s IBIT accounted for $122.66 million of the outflows. Fidelity’s FBTC saw $54.78 million outflows, Grayscale’s GBTC $52.63 million, with smaller outflows at BITB and ARKB. Five ETFs had outflows.
How this was made

The 30-second read
Why it matters
Net outflows of $265.37 million across five ETFs indicate risk-off flows into spot-Bitcoin exposure, with IBIT accounting for nearly half of the total.
Market read
Traders can use the fund-level outflow breakdown to gauge near-term demand and relative positioning across the spot-Bitcoin ETF complex.
What to watch
The article notes eight products had no flows, so relative performance dispersion may matter more than the headline total outflow.
Background
The article reports daily net flow data for US-listed spot-Bitcoin ETFs using SoSoValue as the data source.
Ticker impact
BlackRock’s IBIT led the declines with $122.66 million in net outflows on Aug. 31, nearly half of the total.
Near-term underperformance risk versus other spot-Bitcoin ETFs if outflows persist.
The article provides a concrete, fund-specific outflow figure, which typically correlates with short-term flow-driven price pressure in the ETF.
Fidelity’s FBTC recorded $54.78 million in net outflows on Aug. 31.
Potential relative weakness if FBTC continues to see outflows.
The text discloses a specific daily outflow amount, a direct flow signal for traders monitoring ETF demand.
Grayscale’s GBTC posted net withdrawals of $52.63 million on Aug. 31.
Short-term downside pressure risk for GBTC if withdrawal pace continues.
The article reports a precise daily net withdrawal figure, which is actionable for flow-based positioning.
Bitwise’s BITB logged net outflows of $17.77 million on Aug. 31.
Limited but real near-term pressure if outflows extend.
The outflow is smaller than IBIT/FBTC/GBTC, so impact is likely secondary, but still directionally bearish.
ARK 21Shares’ ARKB recorded net outflows of $17.54 million on Aug. 31.
Potential mild relative weakness if ARKB continues to underperform on flows.
The article provides a specific outflow amount, but it is not large relative to the leaders, limiting expected impact.
Market effects
Broad net outflows across multiple US spot-Bitcoin ETFs can weigh on spot-Bitcoin ETF complex sentiment and flow expectations.
US-listed spot-Bitcoin ETF demand weakness may spill into broader crypto-linked risk appetite for US traders.
US ETF flow signals often influence global spot-Bitcoin sentiment and can affect international crypto derivatives positioning.
Counterpoint
Outflows may reflect routine rebalancing or hedging rather than a durable bearish view on spot Bitcoin demand.
Key entities
- spot-Bitcoin ETFIBIT
BlackRock’s spot-Bitcoin ETF, with $122.66 million net outflows on Aug. 31.
- spot-Bitcoin ETFFBTC
Fidelity’s spot-Bitcoin ETF, with $54.78 million net outflows on Aug. 31.
- spot-Bitcoin ETFGBTC
Grayscale’s spot-Bitcoin ETF, with $52.63 million net withdrawals on Aug. 31.
- spot-Bitcoin ETFBITB
Bitwise’s spot-Bitcoin ETF, with $17.77 million net outflows on Aug. 31.
- spot-Bitcoin ETFARKB
ARK 21Shares’ spot-Bitcoin ETF, with $17.54 million net outflows on Aug. 31.


