According to SoSoValue data, Bitcoin spot ETFs saw a net outflow of $1.23 billion from October 13th to 17th, EST, with none of the twelve ETFs experiencing net inflows. The Grayscale GBTC ETF saw the largest weekly net outflow, with a weekly net outflow of $298 million, bringing GBTC's total net outflow to $24.5 billion. The second largest weekly outflow was the Ark Invest and 21Shares ARKB ETF, which saw a weekly net outflow of $290 million, bringing ARKB's total net inflow to $2.06 billion. As of press time, the total net asset value of Bitcoin spot ETFs stood at $143.93 billion, with a net asset value ratio (market capitalization relative to the total Bitcoin market capitalization) of 6.75%, and cumulative net inflows reaching $61.54 billion.