Odaily News According to Lookonchain monitoring, on March 17, 10 US Bitcoin ETFs had a net inflow of 641 BTC, of which ARK 21Shares had an inflow of 1,187 BTC. It currently holds 47,431 BTC, worth approximately US$3.98 billion; 9 Ethereum ETFs had a net outflow of 48,979 ETH, of which Grayscale ETHE had an outflow of 22,610 ETH. Grayscale ETHE currently holds 1,214,497 ETH, worth approximately US$2.34 billion.