Amentum Holdings Inc. Stock Falls Monday, Underperforms Market

Dow Jones

Aug 18

DJ Amentum Holdings Inc. Stock Falls Monday, Underperforms Market

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

Shares of Amentum Holdings Inc. $(AMTM)$ slid 4.84% to $20.43 Monday, on what proved to be an all-around poor trading session for the stock market, with the S&P 500 Index falling 0.52% to 7,745.06 and Dow Jones Industrial Average falling 0.51% to 53,459.78.

This was the stock's third consecutive day of losses.

Amentum Holdings Inc. closed 46.39% short of its 52-week high of $38.11, which the company reached on February 6th.

Trading volume (4.1 M) eclipsed its 50-day average volume of 2.0 M.

Data source: Dow Jones Market Data, FactSet. Data compiled August 17, 2026.

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Stock Falls Monday, Underperforms Market\n</h2>\n\n<h4 class=\"meta\">\n\n\n<div class=\"head\" \">\n\n\n<div class=\"h-thumb\" style=\"background-image:url(https://static.tigerbbs.com/150f88aa4d182df19190059f4a365e99);background-size:cover;\"></div>\n\n<div class=\"h-content\">\n<p class=\"h-name\">Dow Jones </p>\n<p class=\"h-time\">2026-08-18 05:19</p>\n</div>\n\n</div>\n\n\n</h4>\n\n</header>\n<article>\n<font class=\"NormalMinus1\" face=\"Arial\">\n<p>\nDJ Amentum Holdings Inc. Stock Falls Monday, Underperforms Market\n</p>\n<p>\n  This article was automatically generated by MarketWatch using technology from Automated Insights. \n</p>\n<p>\n     Shares of Amentum Holdings Inc. <a href=\"https://laohu8.com/S/AMTM\">$(AMTM)$</a> slid 4.84% to $20.43 Monday, on what proved to be an all-around poor trading session for the stock market, with the S&amp;P 500 Index  falling 0.52% to 7,745.06 and Dow Jones Industrial Average  falling 0.51% to 53,459.78. \n</p>\n<p>\n     This was the stock's third consecutive day of losses. \n</p>\n<p>\n     Amentum Holdings Inc. closed 46.39% short of its 52-week high of $38.11, which the company reached on February 6th. \n</p>\n<p>\n     Trading volume (4.1 M) eclipsed its 50-day average volume of 2.0 M. \n</p>\n<p>\n     Data source: Dow Jones Market Data, FactSet. 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Stock Falls Monday, Underperforms MarketThis article was automatically generated by MarketWatch using technology from Automated Insights.Shares of Amentum Holdings Inc.  slid 4.84% to $20.43 Monday, on what proved to be an all-around poor trading session for the stock market, with the S&P 500 Index  falling 0.52% to 7,745.06 and Dow Jones Industrial Average  falling 0.51% to 53,459.78.This was the stock's third consecutive day of losses.Amentum Holdings Inc. closed 46.39% short of its 52-week high of $38.11, which the company reached on February 6th.Trading volume  eclipsed its 50-day average volume of 2.0 M.Data source: Dow Jones Market Data, FactSet. 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Stock Falls Monday, Underperforms Market\n\n\n  This article was automatically generated by MarketWatch using technology from Automated Insights. \n\n\n     Shares of Amentum Holdings Inc. $(AMTM)$ slid 4.84% to $20.43 Monday, on what proved to be an all-around poor trading session for the stock market, with the S&P 500 Index  falling 0.52% to 7,745.06 and Dow Jones Industrial Average  falling 0.51% to 53,459.78. \n\n\n     This was the stock's third consecutive day of losses. \n\n\n     Amentum Holdings Inc. closed 46.39% short of its 52-week high of $38.11, which the company reached on February 6th. \n\n\n     Trading volume (4.1 M) eclipsed its 50-day average volume of 2.0 M. \n\n\n     Data source: Dow Jones Market Data, FactSet. 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