Golden Finance reported that according to Farside Investors data, the US spot Bitcoin ETF had a cumulative net outflow of US$274.3 million this week, of which: BlackRock IBIT had a net inflow of US$135.3 million; Fidelity FBTC had a net outflow of US$138.9 million; Grayscale GBTC had a net outflow of US$19.8 million.