BlockBeats news, on December 21, according to Farside Investors monitoring, yesterday Grayscale's GBTC had a net outflow of 57.4 million USD, ARK's ARKB had a net outflow of 87 million USD, Franklin's EZBC had a net inflow of 5.6 million USD, and Grayscale's mini BTC had a net inflow of 6.4 million USD.