Amentum HoldingsHAM:ZI7 -0.68%16 Market Cap is €4,355 Mil as of Jun. 28, 2026. GuruFocus rates HAM:ZI7 with a GF Score™ of 16/100. The stock has 3 warning signs investors should review. Among 1,116 Business Services companies, Amentum Holdings ranks better than 95.52% on this metric.
Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Amentum Holdings's share price for the quarter that ended in Mar. 2026 was €22.2. Amentum Holdings's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 244 Mil. Therefore, Amentum Holdings's market cap for the quarter that ended in Mar. 2026 was €5,419 Mil.
Amentum Holdings's quarterly market cap
increased
from Sep. 2025 (€4,821 Mil) to Dec. 2025 (€5,948 Mil) but then
declined
from Dec. 2025 (€5,948 Mil) to Mar. 2026 (€5,419 Mil).
Amentum Holdings's annual market cap
stayed the same
from Sep. 2023 (€0 Mil) to Sep. 2024 (€0 Mil) but then
increased
from Sep. 2024 (€0 Mil) to Sep. 2025 (€4,821 Mil).
Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Amentum Holdings's Enterprise Value for Today is €7,516 Mil.
Amentum Holdings (HAM:ZI7) Market Cap Explanation
Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the companys debt. The real price you pay is the Enterprise Value.
Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.
Amentum Holdings Market Cap Related Terms
Amentum Holdings Market Cap Historical Data
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The historical data trend for Amentum Holdings's Market Cap can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Specialty Business Services subindustry, Amentum Holdings's Market Cap, along with its competitors' market caps and Market Cap data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Amentum Holdings Market Cap vs Business Services Industry
For the Business Services industry and Industrials sector, Amentum Holdings's Market Cap distribution charts can be found below:
* The bar in red indicates where Amentum Holdings's Market Cap falls into.
Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.
Amentum Holdings's Market Cap for the fiscal year that ended in Sep. 2025 is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Amentum Holdings (HAM:ZI7) has a Market Cap of €4,355 Mil as of Jun. 28, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Amentum Holdings and its competitors. According to the industry distribution chart, Amentum Holdings ranks #50 out of 1116 companies in the Business Services industry, placing it in the top 4.5%.
Is Amentum Holdings' Market Cap too high?
Amentum Holdings' current Market Cap is €4,355 Mil. Based on the distribution chart, Amentum Holdings ranks #50 out of 1116 companies in the Business Services industry, which is in the top quartile — a strong position relative to peers. Overall, Amentum Holdings has a GF Score™ of 16/100, reflecting its overall financial health beyond just this single metric.
How does Amentum Holdings' Market Cap compare to DLB and UNF?
According to the Business Services industry distribution chart, Amentum Holdings ranks #50 out of 1116 companies for Market Cap. This places Amentum Holdings in the top 5% of its industry — outperforming the majority of peers. The industry median Market Cap is 55.25. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Business Services company?
The median Market Cap among Business Services companies is 55.25, based on 1,116 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Amentum Holdings and its competitors. For the Business Services industry, the median Market Cap is 55.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Amentum Holdings's current Market Cap is €4,355 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Amentum Holdings stock overvalued right now?
Amentum Holdings (HAM:ZI7) has a current Market Cap of €4,355 Mil. The current Market Cap is €4,355 Mil. Amentum Holdings' overall GF Score™ is 16/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Amentum Holdings (HAM:ZI7), the current Market Cap is €4,355 Mil as of Jun. 28, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Amentum Holdings Inc is an engineering and technology solutions provider serving U.S. and allied government agencies, as well as international and commercial customers across energy and environmental, intelligence, space, defense, civilian and commercial markets. It provides environmental remediation, intelligence and counter-threat solutions, data analytics, engineering and integration, testing, training and citizen services. The company operates through two segments: Digital Solutions, offering digital and data-driven services, and Global Engineering Solutions, providing environmental remediation, nuclear power solutions, platform engineering, sustainment, and supply chain management. majority of its revenue comes from the Global Engineering Solutions segment and from the United States.
16GF Score
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