Bitcoin and Ethereum ETFs experienced their worst weekly stretch since debut, as risk appetite declined and investors de-risked heading into quarter-end.

U.S. spot Bitcoin ETFs saw approximately $902.5 million in net outflows for the week of Sept. 22–26, ending a four-week inflow streak. Ethereum ETFs lost about $795.6 million, marking their largest weekly redemptions since launch.

The outflows were uneven: Fidelity’s FBTC led BTC outflows, while BlackRock’s IBIT and Invesco’s BTCO defied the trend with $173.8 million and $10 million of inflows, respectively. On the ETH side, several issuers experienced large single-day withdrawals, showing how quickly flows can reverse when macro risk increases.

Macro Headwinds Keep Buyers Cautious

The reversal came as traders weighed new U.S. tariff

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