According to Lookonchain, as of October 21, Bitcoin ETFs experienced net inflows totaling 4,330 BTC, equivalent to approximately $290.85 million. Notably, ARK21Shares contributed significantly to this trend with an inflow of 1,598 BTC, valued at $107.35 million, and currently holds a substantial 52,347 BTC valued at $3.52 billion. In contrast, Ethereum ETFs saw net outflows of 3,081 ETH, translating to a decrease of $8.24 million. Grayscale's ETHE was a major contributor to these outflows, shedding 6,178 ETH, worth $16.51 million, while maintaining a holding of 1,619,808 ETH.