According to BlockBeats, data from Farside Investors revealed that on May 31, the US Bitcoin Spot ETF recorded a net inflow of $48.8 million. The BlackRock IBIT accounted for only $1.6 million of this total inflow, while the Fidelity FBTC contributed a significant $119 million. However, ARK's ARKB experienced a net outflow of $99.9 million. The figures indicate a mixed performance across different ETFs in the cryptocurrency market.