According to data from Farside Investors, Grayscale GBTC had a net outflow of $642.5 million yesterday, while Fidelity FBTC only had a net inflow of $5.9 million. Currently, it requires the combined net inflows of over $610 million from three ETFs - Bitwise IBIT and Invesco Galaxy's BTCO (smaller scale), and Valkyrie's BRRR (smaller scale) to maintain an overall net inflow.