ChainCatcher news, Bitcoin spot ETFs saw a net inflow of $1.67 billion last week, with the highest weekly net outflow being $153 million from Ark Invest and 221Shares' ETF ARKB.According to SoSoValue data, during the trading days last week (Eastern Time from November 11 to November 15), Bitcoin spot ETFs had a net inflow of $1.67 billion. Among them, Grayscale ETF GBTC had a weekly net outflow of $85.69 million, with a historical net outflow of $20.27 billion.The Bitcoin spot ETF with the highest net inflow last week was BlackRock ETF IBIT, with a weekly net inflow of $1.89 billion, bringing its historical total net inflow to $29.28 billion. Following that was Grayscale Bitcoin Trust ETF BTC, with a weekly net inflow of $5.225 million, and its historical total net inflow reached $594 million. The Bitcoin spot ETF with the highest net outflow last week was Ark Invest and 221Shares' ETF ARKB, with a weekly net outflow of $153 million, and its historical total net inflow stands at $2.45 billion.As of the time of publication, the total net asset value of Bitcoin spot ETFs is $95.407 billion, with an ETF net asset ratio (market cap relative to total Bitcoin market cap) of 5.27%, and the historical cumulative net inflow has reached $27.459 billion.