Source: Cointelegraph.com NewsHowever, the impressive flows from BlackRock’s IBIT and Fidelity’s FBTC haven’t been enough to gain on the leading ETF asset manager by total flows, Vanguard.Read MoreBlackRock, IBIT, Fidelity, FBTC, Flows, Inflows, Grayscale, GBTC, Bloomberg, Eric Balchunas, Invesco & Galaxy, Vanguard, Volume