According to SoSoValue data, Bitcoin spot ETFs saw a total net outflow of $158 million yesterday (December 19th, Eastern Time). The Bitcoin spot ETF with the largest single-day net inflow was the Fidelity ETF (FBTC), with a net inflow of $15.3341 million. FBTC's historical total net inflow has reached $12.208 billion. The Bitcoin spot ETF with the largest single-day net outflow was the BlackRock ETF (IBIT), with a net outflow of $174 million. IBIT's historical total net inflow has reached $62.491 billion. As of press time, the total net asset value of Bitcoin spot ETFs is $114.873 billion, with an ETF net asset ratio (market capitalization as a percentage of Bitcoin's total market capitalization) of 6.53%. The historical cumulative net inflow has reached $57.407 billion.