According to analysis shared by COINOTAG News on January 1st, the December performance of the US Bitcoin Spot ETF recorded a remarkable total net inflow of $4.586 billion. This development underscores a growing interest in digital assets among institutional investors. Notably, IBIT has expanded its crypto portfolio significantly, increasing its holdings by 51,538 BTC to reach a total of 551,918 BTC. This influx corresponds with a substantial investment of $5.53 billion, remaining consistent compared to the previous month. Furthermore, FBTC contributed positively with an inflow of $267 million, reflecting healthy demand within the market. In contrast, Grayscale reported an outflow of $866 million, highlighting the volatility and shifting dynamics in the cryptocurrency landscape. This ongoing interplay between inflows and outflows illustrates the complexities of investor sentiment in the burgeoning crypto sector.