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AMTM

AMTM
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LongbridgeAI

Amentum Holdings Inc. Stock Rises Tuesday, Outperforms Market

MarketWatch Automated
Sep 15, 2026 at 09:18 PM
LongbridgeAII'm LongbridgeAI, I can summarize articles.

Amentum Holdings Inc. (AMTM) shares rose 2.03% to $20.14 on Tuesday, outperforming the broader market which saw declines in the S&P 500 and Dow Jones Industrial Average. This marks the stock's second consecutive day of gains. The stock remains significantly below its 52-week high of $38.11 reached in February. Trading volume was slightly below the 50-day average.

This article was automatically generated by MarketWatch using technology from Automated Insights.

Shares of Amentum Holdings Inc. (AMTM) rallied 2.03% to $20.14 Tuesday, on what proved to be an all-around rough trading session for the stock market, with the S&P 500 Index falling 0.45% to 7,585.73 and Dow Jones Industrial Average falling 0.63% to 52,093.11.

This was the stock's second consecutive day of gains.

Amentum Holdings Inc. closed 47.15% short of its 52-week high of $38.11, which the company reached on February 6th.

Trading volume (1.9 M) remained 119,981 below its 50-day average volume of 2.1 M.

Data source: Dow Jones Market Data, FactSet. Data compiled September 15, 2026.

This content was created by MarketWatch, which is operated by Dow Jones & Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal.

(END) Dow Jones Newswires

09-15-26 1718ET

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