DJ Amentum Holdings Inc. Stock Falls Monday, Underperforms Market
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Shares of Amentum Holdings Inc. $(AMTM)$ slipped 6.65% to $20.06 Monday, on what proved to be an all-around mixed trading session for the stock market, with the Dow Jones Industrial Average rising 0.26% to 53,417.16 and the S&P 500 Index falling 0.28% to 7,652.86.
Amentum Holdings Inc. closed 47.36% short of its 52-week high of $38.11, which the company reached on February 6th.
Trading volume (2.6 M) eclipsed its 50-day average volume of 2.2 M.
Data source: Dow Jones Market Data, FactSet. Data compiled August 24, 2026.