According to ChainCatcher, Farside Investors data shows that Grayscale GBTC had a net outflow of 24.4 million dollars yesterday, while BTC had a net inflow of 7.2 million dollars.
At the same time, Grayscale ETHE had a net outflow of 27.4 million dollars, while ETH had a net inflow of 8.8 million dollars.