Ethereum spot ETFs in the U.S. experienced substantial outflows on October 17, 2025, totaling $232.8 million. BlackRock's ETHA led the decline with a $146 million outflow, followed by Fidelity's FETH and Grayscale's ETHE, which saw outflows of $30 million and $26 million, respectively. Meanwhile, ETFs from Franklin Templeton, 21Shares, and Invesco remained stable. This week marked the fifth-worst performance for Ethereum ETFs since their inception in July 2024.