Bitcoin Spot ETF Records $51M Outflow Snaps 7-Day Inflow Streak as ETH Bleeds Again

Group 1: Bitcoin ETFs Performance - Bitcoin spot ETFs in the U.S. experienced their first significant outflow in over a week, with $51.28 million leaving the market on September 17, following seven consecutive sessions of inflows [1][2] - The largest outflow was from Fidelity's FBTC, which saw $116.03 million withdrawn, despite a historical net inflow of $12.56 billion [2] - Grayscale's GBTC also faced significant losses with $62.64 million withdrawn, while Ark and 21Shares' ARKB lost $32.29 million [2] Group 2: Inflows and Total Assets - BlackRock's iShares Bitcoin Trust (IBIT) attracted $149.73 million in inflows on the same day, while Grayscale's lower-fee Bitcoin Mini Trust ($BTC) saw $22.54 million in inflows, raising its lifetime total to $1.84 billion [3] - Total assets under management for Bitcoin spot ETFs reached $152.45 billion, representing 6.62% of Bitcoin's market capitalization [3][4] - Cumulative net inflows across all Bitcoin products since launch stand at $57.33 billion [4] Group 3: Ethereum ETFs Struggles - Ethereum ETFs continued to face pressure, with $1.89 million in net outflows on September 17, extending a streak of withdrawals since early September [4][5] - Fidelity's FETH was the largest loser among Ethereum products, with $29.19 million in redemptions [4] - Total assets under management for Ether ETFs are now at $29.72 billion, or 5.47% of Ethereum's market capitalization, with cumulative inflows reported at $13.66 billion [5]