According to CoinVoice, as per SoSoValue data, yesterday (Eastern Time, December 30) the total net outflow of Bitcoin spot ETF was 426 million USD, continuing a two-day net outflow.
Yesterday, Grayscale ETF GBTC had a net outflow of 135 million USD, bringing the historical net outflow of GBTC to 21.487 billion USD. Grayscale Bitcoin Trust ETF BTC had a net outflow of 31.73 million USD yesterday, with the historical total net inflow of Grayscale Bitcoin Trust BTC at 829 million USD.
As of the time of writing, the total net asset value of Bitcoin spot ETF is 106.239 billion USD, with an ETF net asset ratio (market value compared to total Bitcoin market value) reaching 5.69%, and the historical cumulative net inflow has reached 35.238 billion USD. [Original link]