According to SoSoValue data, Bitcoin spot ETFs saw a total net inflow of $2.63 billion yesterday (September 13th, Eastern time). Grayscale's ETF GBTC saw a single-day net inflow of $6.66 million yesterday. The historical net outflow for GBTC currently stands at $20 billion. Grayscale's Bitcoin Mini Trust ETF BTC had a net outflow of $0.00 yesterday, with a total historical net inflow of $380 million. The Bitcoin spot ETF with the highest daily net inflow yesterday was Fidelity's ETF FBTC, with a net inflow of $102 million. FBTC currently has a total historical net inflow of $9.64 billion. The second highest was Ark Invest and 21Shares' ETF ARKB, with a daily net inflow of $99.27 million. ARKB currently has a total historical net inflow of $2.35 billion. As of this writing, the total net asset value for Bitcoin spot ETFs stands at $54.31 billion. The ETF net asset ratio (market cap as a percentage of Bitcoin's total market cap) is 4.59%. The total historical net inflow has reached $17.29 billion.