BlackRock's Bitcoin ETF (IBIT) experienced a net outflow of 1,902 Bitcoin ($144.11 million) on September 16, with trading volume of $2.1 billion, continuing a trend of negative flows from the previous day.
On September 15, 2026, US spot Ethereum ETFs recorded approximately $142 million in net outflows, reversing inflows from the previous two trading sessions. An analyst notes this single session's outflow is not yet conclusive evidence of sustained capital withdrawal and suggests monitoring subsequent sessions to assess whether funds return and how ETH price responds.
Bitcoin ETFs experienced a $482.5M outflow for September 8-11, with IBIT flipping to a net outflow after being the previous week's largest inflow driver. Ethereum ETFs remained positive with $139.7M inflow, though Bitcoin's weakness pushed combined flows negative at $342.8M for the holiday-shortened week.
Bitcoin ETFs experienced a $482.5M outflow for September 8-11, with ARKB and IBIT driving the decline, while Ethereum ETFs saw $139.7M inflows. Combined crypto ETF flows swung negative to -$342.8M from the prior week's +$1.10B, as spot demand weakened and leverage positions unwound.