Data shows that U.S. spot bitcoin exchange-traded funds (ETFs) experienced negative outflows on Friday, totaling $ 55.1 million, with Grayscale’s Bitcoin Trust (GBTC) seeing another notable decrease. Metrics from Thursday reveal GBTC held 316,193.43 bitcoins, but after a decline of 2,048.23 bitcoins, the fund’s holdings reduced to 314,145.2 bitcoins. Blackrock and Fidelity Absorb Bitcoin …