On October 7th, according to SoSoValue data, the Bitcoin spot ETF had a net outflow of 301 million US dollars in a single week last week. Among them, the ARK 21Shares Bitcoin ETF ARKB had a net outflow of up to 206 million US dollars in a single week, and the historical total net inflow reached 2.52 billion US dollars; the grey release (Grayscale) ETF GBTC had a weekly net outflow of 47.12 million US dollars, and the historical net outflow was 20.14 billion US dollars. BlackRock ETF IBIT had the largest weekly net inflow last week, with a net inflow of 135 million US dollars and a historical total net inflow of 21.56 billion US dollars; followed by Invesco Galaxy Bitcoin ETF BTCO, with a weekly net inflow of 2.44 million US dollars and a historical total net inflow of 373 million US dollars. As of press time, the total net asset value of Bitcoin spot ETFs was $57.734 billion, the ETF net asset ratio (market value compared to the total market value of Bitcoin) reached 4.68%, and the historical cumulative net inflow had reached $18.499 billion.