Lookonchain reports that on October 21, Bitcoin ETFs recorded a 1-day net outflow of 403 BTC (-$33.88M), while their 7-day net flow remained positive at +2,528 BTC (+$212.31M). Ethereum ETFs saw a 1-day net outflow of 12,688 ETH (-$31.42M) and a 7-day net outflow of 155,122 ETH (-$384.13M).