Amentum Holdings Inc. stock falls Wednesday, underperforms market
Shares of Amentum Holdings Inc. AMTM slid 2.76% to $21.49 Wednesday, on what proved to be an all-around great trading session for the stock market, with the S&P 500 Index SPX rising 0.16% to 5,918.25 and the Dow Jones Industrial Average DJIA rising 0.