US spot Bitcoin ETFs recorded $159.5M inflow while Ethereum ETFs saw $39.3M outflow on September 17, signaling rotation from ETH to BTC.
Macro & Markets ·
On September 17, US spot Bitcoin ETFs recorded a combined inflow of $159.5 million, with IBIT leading at $183.7 million, while FBTC and HODL each saw outflows of $16.6 million and $7.6 million respectively. Ethereum ETFs meanwhile posted a $39.3 million net outflow, driven primarily by a $42.9 million decline in ETHA.
The divergent flows suggest capital shifting from Ethereum positions into Bitcoin exposure rather than a generalized market retreat. IBIT's strong inflow relative to modest outflows in competing Bitcoin products indicates concentration of new capital in a single vehicle.
The extent to which this flow dynamic reflects institutional repositioning versus retail sentiment realignment remains unclear. Further data on subsequent trading days and Ethereum ETF performance would help establish whether the outflow signals a sustained rotation or a temporary shift.