According to SoSoValue data, during the last trading week (Eastern Time December 16 to December 20), the Bitcoin spot ETF had a net inflow of $449 million. Among them, the Grayscale ETF GBTC had a net outflow of $248 million, with a historical net outflow of $21.29 billion. The Bitcoin spot ETF with the highest net inflow last week was the BlackRock ETF IBIT, with a weekly net inflow of $1.45 billion, bringing the total historical net inflow of IBIT to $37.33 billion. The next was the Franklin Templeton ETF EZBC, with a weekly net inflow of $5.61 million, currently totaling $467 million in historical net inflow. The Bitcoin spot ETF with the highest net outflow last week was the Fidelity ETF FBTC, which had a net inflow out of $292 million, with a total historical net inflow of $12.02 billion. As of the time of writing, the total net asset value of Bitcoin spot ETFs is $109.725 billion, with an ETF net asset ratio (the ratio of market value to total Bitcoin market value) reaching 5.75%, and the historical cumulative net inflow has reached $36.052 billion.