U.S. equities experienced a downturn in afternoon trading on Monday, December 29, 2025, as investors engaged in profit-taking during a holiday-shortened week, cooling off from recent rallies. Major market indexes were broadly lower, with particular pressure on heavyweight technology stocks, while the energy sector showed resilience. This cautious sentiment prevails as the market approaches the close of a tumultuous yet ultimately rewarding year, with an eye on key economic data and policy decisions slated f ...