On September 16, the total net inflow of Bitcoin spot ETFs was $12.9041 million. Grayscale ETF GBTC outflowed $20.7546 million, Grayscale mini ETF BTC inflowed $2.8236 million, BlackRock ETF IBIT inflowed $15.8187 million, and Fidelity ETF FBTC inflow was $5.0641 million.