DJ Amentum Holdings Inc. Stock Falls Monday, Underperforms Market
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Shares of Amentum Holdings Inc. $(AMTM)$ shed 3.65% to $18.49 Monday, on what proved to be an all-around dismal trading session for the stock market, with the S&P 500 Index falling 0.77% to 7,683.69 and Dow Jones Industrial Average falling 0.67% to 51,481.51.
This was the stock's third consecutive day of losses.
Amentum Holdings Inc. closed 51.48% short of its 52-week high of $38.11, which the company achieved on February 6th.
Trading volume (1.2 M) remained 889,712 below its 50-day average volume of 2.1 M.
Data source: Dow Jones Market Data, FactSet. Data compiled September 28, 2026.