DJ Amentum Holdings Inc. Stock Rises Monday, Outperforms Market
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Shares of Amentum Holdings Inc. $(AMTM)$ rallied 1.53% to $19.90 Monday, on what proved to be an all-around favorable trading session for the stock market, with the S&P 500 Index rising 1.49% to 7,764.70 and the Dow Jones Industrial Average rising 0.71% to 52,048.83.
Amentum Holdings Inc. closed 47.78% below its 52-week high of $38.11, which the company reached on February 6th.
Trading volume (1.3 M) remained 742,795 below its 50-day average volume of 2.1 M.
Data source: Dow Jones Market Data, FactSet. Data compiled September 21, 2026.