Spot Bitcoin ETFs recorded a net outflow of 6,998 BTC ($571.59 million) on October 23, though weekly flows remain positive at +4,312 BTC ($352.18 million). Ethereum ETFs saw deeper selling pressure, with daily netflows at -19,381 ETH ($46.54 million) and seven-day cumulative outflows reaching -115,218 ETH ($276.69 million), signaling sustained institutional de-risking in the altcoin's spot products.