BlockBeats News, December 18th, according to Farside Investors monitoring, yesterday's net inflow of $457.3 million into the US Bitcoin spot ETF, including:BlackRock IBIT: +$1.112 billionFidelity FBTC: +$3.915 billionBitwise BITB: -$8.4 millionARK ARKB: -$37 millionIn addition, yesterday's net outflow of $22.4 million from the US Ethereum spot ETF, including:BlackRock ETHA: -$19.6 millionFidelity FETH: -$2.8 million