On March 9th, according to data from @HODL15Capital, Fidelity FBTC had a net inflow of $130 million yesterday. This is because GBTC had a net outflow of $303 million yesterday, and the inflow data of other spot ETFs was generally realized. BlackRock's IBIT needs an inflow of over $155 million to maintain the overall net inflow of spot ETFs.