On December 16th, according to SoSoValue data, from December 9th to 13th, US Eastern Time, Bitcoin spot ETF had a net inflow of 2.17 billion US dollars in a single week, and realized a net inflow of funds for five consecutive trading days. Among them, BlackRock ETF IBIT ranked first with a net inflow of 1.51 billion US dollars, with a total net inflow of 35.88 billion US dollars in history; Fidelity ETF FBTC had a net inflow of 598 million US dollars, and a total net inflow of 12.31 billion US dollars in history. In contrast, the grey release (Grayscale) ETF GBTC had a net outflow of $221 million last week, and the cumulative net outflow in history reached $21.05 billion. As of now, the total net asset value of the Bitcoin spot ETF is $114.969 billion, accounting for 5.71% of the total Bitcoin market capitalization, and the cumulative net inflow in history is $35.602 billion.