Amentum Holdings, Inc. (AMTM) Stock Analysis and Metrics

Amentum Holdings

NYSE: AMTM

$22.56 ▲ +0.55 (+2.50%)

At close: Jul 24, 2026 · 3:59 PM UTC

Financial Ratios

Market Cap5.52 Bn

P/E41.23

P/S0.39

Div. Yield0.01

ROIC (Qtr)0.02

Total Debt (Qtr)3.93 Bn

Revenue Growth (1y) (Qtr)-0.37

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About

Amentum Holdings, Inc. is a global advanced engineering and technology solutions provider to a broad base of U. S. and allied government agencies, and customers in international and commercial markets. The company delivers solutions across energy and environmental, intelligence, space, defense, civilian and commercial end markets. Its workforce of approximately 50,000 employees operates in over seventy countries. Amentum draws on more than one hundred years of expertise from predecessor firms such as EG&G, Morrison Knudsen, Westinghouse Government Services, URS, Lear Siegler Services, DynCorp, Pacific Architects and Engineers and the former Jacobs Critical Mission Solutions business to support full mission lifecycle programs for its clients.

Amentum generates revenue primarily through contracts with U. S. government agencies, which accounted for about 81% of total revenue for the year ended October 3, 2025. The firm also serves international and commercial customers, earning income from advanced digital and data driven solutions, environmental remediation, nuclear power, platform engineering, sustainment and supply chain management services. These offerings are delivered under cost plus fee, fixed price and time and materials contract structures. A backlog of $47.1 billion as of October 3, 2025 provides visibility into future revenue and supports the company’s ability to pursue large scale contracts while maintaining a steady stream of earnings.

The company operates through the following segments: Digital Solutions (DS) and Global Engineering Solutions (GES).

• Digital Solutions: This segment provides advanced digital and data driven solutions including intelligence analytics, space system development, cybersecurity, next generation information technology and software engineering services to federal government and commercial clients. It supports missions such as threat recognition, surveillance, satellite operations and digital transformation initiatives.

• Global Engineering Solutions: This segment delivers large scale environmental remediation, nuclear power solutions, platform engineering, sustainment and supply chain management services across all seven continents for U. S. government and allied nation clients. Its work includes site cleanup, waste management, facility construction and lifecycle support for defense and energy projects.

Amentum holds a strong position in the government services industry due to its scale, diversified contract base and long standing relationships with U. S. and allied agencies. Its competitive advantages include the ability to win large, complex programs, deep expertise in areas such as C5ISR, R&D&T&E, energy, space and digital modernization, and a global footprint that spans over seventy countries. The company faces competition from firms like Booz Allen Hamilton, CACI International, KBR, Leidos, ManTech, Parsons, Peraton, SAIC and V2X, as well as larger defense contractors such as Boeing, BAE Systems, General Dynamics, L3Harris, Lockheed Martin, Northrop Grumman and RTX. In the U. K. defense market it contends with Babcock International, BAE Systems, Mott MacDonald, Serco and Mace, while its environmental business rivals AtkinsRealis, Bechtel, BWX Technologies, Honeywell, Huntington Ingalls Industries, Fluor and Westinghouse.

Amentum serves a diverse customer base that includes the U. S. Department of Energy, the Intelligence Community comprising the National Intelligence Program and the Military Intelligence Program, the Department of War, the National Aeronautics and Space Administration and the Department of Homeland Security. Internationally the company works with the U. K. Ministry of Defence, the U. K. Nuclear Decommissioning Authority and the Australian Department of Defence. In addition, Amentum provides services to commercial clients in sectors such as aerospace, space, automotive and telecommunications.

Investment Thesis

▲ Bull case

Amentum's strategic positioning in critical digital infrastructure (CDI) presents a significant underappreciated growth driver that could substantially accelerate long-term value creation. The company is leveraging its decade-long expertise in telecom, data centers, and cybersecurity to capture expanding demand from AI-driven workloads, hyperscaler retrofits, and edge computing needs. Management highlighted that data center demand is expected to grow 29% annually, global mobile data traffic will quadruple, and the edge market will grow 36% annually through 2030—creating a multi-decade tailwind for integrated infrastructure solutions. Amentum's recent $600 million in CDI awards, including advanced wireless networks and data center retrofits for AI workloads, demonstrates early traction in a market where the company has differentiated capabilities in securing both IT and operational technology environments. This positions Amentum to benefit from secular trends in AI adoption that are not yet fully reflected in current valuations, particularly as commercial enterprises increasingly seek government-grade cybersecurity solutions for their AI deployments. The dual-use nature of its technology—applying national security expertise to commercial challenges—creates a scalable advantage that could drive margin expansion beyond current expectations as CDI matures into a larger portion of the portfolio.
The company's capital structure optimization and deleveraging trajectory represent an underrecognized catalyst for shareholder returns that could unlock significant value as leverage targets are met. Amentum recently enhanced its capital structure by issuing a $1.4 billion Term Loan A facility to reprice debt, increasing revolving credit capacity to $1 billion, and reducing its weighted average cost of debt by approximately 50 basis points following a Moody's rating upgrade. Management emphasized that achieving net leverage below 3x by fiscal year-end will enable greater financial flexibility for opportunistic capital deployment, including high-return organic investments, accretive M&A, or shareholder returns when the stock trades below intrinsic value. With free cash flow generation expected to grow at 10% or greater from now through FY28—accelerated relative to initial post-merger expectations—the company is positioned to compound shareholder value through both debt reduction and strategic reinvestment. This financial flexibility, combined with improving margins from fixed-price work and cost synergy initiatives, creates a pathway for sustained EPS growth that may exceed current guidance ranges if capital deployment is executed effectively.
Amentum's backlog strength and bidding momentum signal sustainable revenue visibility that the market may be underestimating, particularly given the company's alignment with multi-year government budget trends. The company ended Q2 FY26 with a record $48 billion ending backlog (up 7% year-over-year) and $6.9 billion in funded backlog (up 20% year-over-year), supported by a quarterly and LTM book-to-bill ratio of 1.2x. Management noted over $20 billion in first-half submits and $26 billion in proposals awaiting award—65% of which are new business—putting them on track to exceed their $35 billion annual bidding target. Critically, Heller emphasized that much of this bidding activity is focused on FY27 opportunities, suggesting that current strength is building a pipeline for future growth rather than reflecting a temporary surge. This is further reinforced by alignment with the President's FY27 budget request, which includes a 20% increase in defense spending prioritizing readiness, deterrence, space, missile defense, and counter-UAS—areas where Amentum holds leadership positions. The convergence of robust demand in core markets (e.g., platform sustainment, logistics) and accelerating growth markets (nuclear, space, CDI) creates a diversified growth engine less susceptible to single-sector downturns.

Amentum's strategic positioning in critical digital infrastructure (CDI) presents a significant underappreciated growth driver that could substantially accelerate long-term value creation. The company is leveraging its decade-long expertise in telecom, data centers, and cybersecurity to capture expanding demand from AI-driven workloads, hyperscaler retrofits, and edge computing needs. Management highlighted that data center demand is expected to grow 29% annually, global mobile data traffic will quadruple, and the edge market will grow 36% annually through 2030—creating a multi-decade tailwind for integrated infrastructure solutions. Amentum's recent $600 million in CDI awards, including advanced wireless networks and data center retrofits for AI workloads, demonstrates early traction in a market where the company has differentiated capabilities in securing both IT and operational technology environments. This positions Amentum to benefit from secular trends in AI adoption that are not yet fully reflected in current valuations, particularly as commercial enterprises increasingly seek government-grade cybersecurity solutions for their AI deployments. The dual-use nature of its technology—applying national security expertise to commercial challenges—creates a scalable advantage that could drive margin expansion beyond current expectations as CDI matures into a larger portion of the portfolio.
The company's capital structure optimization and deleveraging trajectory represent an underrecognized catalyst for shareholder returns that could unlock significant value as leverage targets are met. Amentum recently enhanced its capital structure by issuing a $1.4 billion Term Loan A facility to reprice debt, increasing revolving credit capacity to $1 billion, and reducing its weighted average cost of debt by approximately 50 basis points following a Moody's rating upgrade. Management emphasized that achieving net leverage below 3x by fiscal year-end will enable greater financial flexibility for opportunistic capital deployment, including high-return organic investments, accretive M&A, or shareholder returns when the stock trades below intrinsic value. With free cash flow generation expected to grow at 10% or greater from now through FY28—accelerated relative to initial post-merger expectations—the company is positioned to compound shareholder value through both debt reduction and strategic reinvestment. This financial flexibility, combined with improving margins from fixed-price work and cost synergy initiatives, creates a pathway for sustained EPS growth that may exceed current guidance ranges if capital deployment is executed effectively.
Amentum's backlog strength and bidding momentum signal sustainable revenue visibility that the market may be underestimating, particularly given the company's alignment with multi-year government budget trends. The company ended Q2 FY26 with a record $48 billion ending backlog (up 7% year-over-year) and $6.9 billion in funded backlog (up 20% year-over-year), supported by a quarterly and LTM book-to-bill ratio of 1.2x. Management noted over $20 billion in first-half submits and $26 billion in proposals awaiting award—65% of which are new business—putting them on track to exceed their $35 billion annual bidding target. Critically, Heller emphasized that much of this bidding activity is focused on FY27 opportunities, suggesting that current strength is building a pipeline for future growth rather than reflecting a temporary surge. This is further reinforced by alignment with the President's FY27 budget request, which includes a 20% increase in defense spending prioritizing readiness, deterrence, space, missile defense, and counter-UAS—areas where Amentum holds leadership positions. The convergence of robust demand in core markets (e.g., platform sustainment, logistics) and accelerating growth markets (nuclear, space, CDI) creates a diversified growth engine less susceptible to single-sector downturns.

▼ Bear case

Amentum's margin expansion narrative may be overstated due to transient benefits from joint venture performance and fixed-price work shifts that lack sustainable structural drivers, creating vulnerability if macroeconomic or contractual conditions change. While Global Engineering Solutions margins improved 100 basis points year-over-year to 8.5%, Travis Johnson acknowledged this was driven by a mix of factors including timing of program write-ups, higher equity income from joint ventures, and cost synergy initiatives—some of which may not persist. The shift toward fixed-price and T&M contracts, while cited as accretive, introduces execution risk if cost estimates prove inaccurate, particularly in complex, long-term programs like nuclear decommissioning or data center retrofits where scope creep is common. Johnson noted that margin performance in Digital Solutions remains modest due to new program starts in space and CDI, with expectations of improvement only "over time" as programs ramp—suggesting current segment profitability is not yet reflective of long-term potential. Furthermore, the company's reliance on joint venture equity income for margin support creates exposure to partner performance and strategic alignment risks, which were not deeply explored in the Q&A despite being highlighted as a margin driver. If joint venture contributions normalize or decline, or if fixed-price work encounters underperformance, the margin expansion trajectory could stall, leaving the company vulnerable to multiple compression if growth slows.
The company's growth outlook is overly reliant on timely adjudication of pending awards and continued defense budget increases, creating significant execution risk if congressional delays or geopolitical shifts disrupt funding pipelines. Amentum's optimism about FY27 and FY28 growth hinges on the successful conversion of over $26 billion in pending proposals—two-thirds of which are new business—and alignment with the President's FY27 budget request, which includes a 20% defense increase and $70 billion for counter-UAS technologies. However, Tobey Sommer from Truist explicitly questioned whether management had considered "puts and takes" for FY27/'28 growth, to which Johnson responded that they must "see how the pending awards get adjudicated" and monitor how FY27 progresses—indicating material uncertainty in the pipeline. Furthermore, while Heller cited alignment with budget priorities, he did not address potential risks such as continuing resolutions, sequestration, or shifts in congressional priorities that could delay or reduce funding despite administration requests. The company's heavy reliance on government contracts (evidenced by 97% of expected FY26 revenue coming from existing/recompete business) makes it uniquely susceptible to budgetary delays, and the lack of concrete contingency planning for slower-than-expected award conversion represents a material underappreciated risk to near-term guidance.
Amentum's aggressive investment in AI integration through the new Chief AI Architect role may fail to generate commensurate returns due to lengthy sales cycles, unproven commercial adoption of defense-grade AI solutions, and potential misalignment between internal innovation and customer readiness. The announcement of Dr. Sam Nazari as Chief AI Architect to drive AI integration across defense, intelligence, energy, space, and commercial sectors appears ambitious but lacks concrete near-term financial ties or measurable milestones in the transcript. While the role focuses on aligning AI investments with mission-critical demand signals and ensuring compliance with FedRAMP and CMMC standards, there was no discussion of expected revenue contribution, payback period, or specific use cases beyond general references to supply chain autonomy and tactical operations. Given that AI monetization in government contracting often faces prolonged procurement cycles, stringent security requirements, and customer hesitancy to adopt unproven solutions at scale, the investment could represent a drag on margins if not carefully managed. Furthermore, the commercial sector's adoption of AI-driven infrastructure solutions—while cited as a tailwind—may lag due to budget constraints, legacy system dependencies, or preference for commercial vendors over defense contractors, potentially leaving Amentum overinvested in capabilities that do not translate to near-term revenue growth.

Amentum's margin expansion narrative may be overstated due to transient benefits from joint venture performance and fixed-price work shifts that lack sustainable structural drivers, creating vulnerability if macroeconomic or contractual conditions change. While Global Engineering Solutions margins improved 100 basis points year-over-year to 8.5%, Travis Johnson acknowledged this was driven by a mix of factors including timing of program write-ups, higher equity income from joint ventures, and cost synergy initiatives—some of which may not persist. The shift toward fixed-price and T&M contracts, while cited as accretive, introduces execution risk if cost estimates prove inaccurate, particularly in complex, long-term programs like nuclear decommissioning or data center retrofits where scope creep is common. Johnson noted that margin performance in Digital Solutions remains modest due to new program starts in space and CDI, with expectations of improvement only "over time" as programs ramp—suggesting current segment profitability is not yet reflective of long-term potential. Furthermore, the company's reliance on joint venture equity income for margin support creates exposure to partner performance and strategic alignment risks, which were not deeply explored in the Q&A despite being highlighted as a margin driver. If joint venture contributions normalize or decline, or if fixed-price work encounters underperformance, the margin expansion trajectory could stall, leaving the company vulnerable to multiple compression if growth slows.
The company's growth outlook is overly reliant on timely adjudication of pending awards and continued defense budget increases, creating significant execution risk if congressional delays or geopolitical shifts disrupt funding pipelines. Amentum's optimism about FY27 and FY28 growth hinges on the successful conversion of over $26 billion in pending proposals—two-thirds of which are new business—and alignment with the President's FY27 budget request, which includes a 20% defense increase and $70 billion for counter-UAS technologies. However, Tobey Sommer from Truist explicitly questioned whether management had considered "puts and takes" for FY27/'28 growth, to which Johnson responded that they must "see how the pending awards get adjudicated" and monitor how FY27 progresses—indicating material uncertainty in the pipeline. Furthermore, while Heller cited alignment with budget priorities, he did not address potential risks such as continuing resolutions, sequestration, or shifts in congressional priorities that could delay or reduce funding despite administration requests. The company's heavy reliance on government contracts (evidenced by 97% of expected FY26 revenue coming from existing/recompete business) makes it uniquely susceptible to budgetary delays, and the lack of concrete contingency planning for slower-than-expected award conversion represents a material underappreciated risk to near-term guidance.
Amentum's aggressive investment in AI integration through the new Chief AI Architect role may fail to generate commensurate returns due to lengthy sales cycles, unproven commercial adoption of defense-grade AI solutions, and potential misalignment between internal innovation and customer readiness. The announcement of Dr. Sam Nazari as Chief AI Architect to drive AI integration across defense, intelligence, energy, space, and commercial sectors appears ambitious but lacks concrete near-term financial ties or measurable milestones in the transcript. While the role focuses on aligning AI investments with mission-critical demand signals and ensuring compliance with FedRAMP and CMMC standards, there was no discussion of expected revenue contribution, payback period, or specific use cases beyond general references to supply chain autonomy and tactical operations. Given that AI monetization in government contracting often faces prolonged procurement cycles, stringent security requirements, and customer hesitancy to adopt unproven solutions at scale, the investment could represent a drag on margins if not carefully managed. Furthermore, the commercial sector's adoption of AI-driven infrastructure solutions—while cited as a tailwind—may lag due to budget constraints, legacy system dependencies, or preference for commercial vendors over defense contractors, potentially leaving Amentum overinvested in capabilities that do not translate to near-term revenue growth.

Segments Breakdown of Revenue (2025)

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Investment Thesis

Segments Breakdown of Revenue (2025)

Segments Breakdown of Revenue (2025)

Peer Comparison

Research Tools

Developers

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Investment Thesis

Segments Breakdown of Revenue (2025)

Segments Breakdown of Revenue (2025)

Peer Comparison

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