The ProShares UltraPro QQQ ETF (TQQQ) closed at $88.25 on December 26, down 0.21%, as the Nasdaq 100 faced headwinds from rising Treasury yields and a pullback in cryptocurrency markets. The Nasdaq 100 index itself fell by 0.13% to 21,768.31, pressured by a 4.64% rise in 10-year Treasury yields, which reached their highest level since May. This increase in yields weighed heavily on growth and tech stocks, with major players like Amazon and Meta experiencing declines of 0.8% and 1%, respectively. The broader market sentiment was further dampened by a post-holiday slump in crypto assets, with Bitcoin ETFs dropping up to 4.6% and Bitcoin itself sliding 2.6%. Additionally, the rise in jobless claims to 1.91 million signaled potential labor market softening, adding to the cautious market outlook.