---
title: "Amentum Holdings Inc. Stock Rises Friday, Outperforms Market"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296654237.md"
description: "Amentum Holdings Inc. (AMTM) shares rose 4.27% to $21.49 on Friday, outperforming the broader market as the S&P 500 and Dow Jones Industrial Average also gained. Trading volume reached 3.1 million, exceeding the 50-day average of 2.1 million. The stock remains 43.61% below its 52-week high of $38.11 set in February."
datetime: "2026-08-21T21:17:30.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296654237.md)
  - [en](https://longbridge.com/en/news/296654237.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296654237.md)
generator: "portal-rs"
---

# Amentum Holdings Inc. Stock Rises Friday, Outperforms Market

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

Shares of Amentum Holdings Inc. (AMTM) rose 4.27% to $21.49 Friday, on what proved to be an all-around great trading session for the stock market, with the S&P 500 Index rising 0.43% to 7,674.37 and the Dow Jones Industrial Average rising 0.98% to 53,277.01.

Amentum Holdings Inc. closed 43.61% short of its 52-week high of $38.11, which the company reached on February 6th.

Trading volume (3.1 M) eclipsed its 50-day average volume of 2.1 M.

Data source: Dow Jones Market Data, FactSet. Data compiled August 21, 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

08-21-26 1717ET

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> **Disclaimer: This article is for reference only and does not constitute any investment advice.**