Assessing Amentum Holdings (AMTM) Valuation After Recent Mixed Share Performance

Amentum Holdings Inc TEMP

Amentum Holdings Inc TEMP

AMTM

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What recent trading shows about Amentum Holdings (AMTM)

Amentum Holdings (AMTM) has drawn attention after a mixed stretch in its share performance, with the stock up about 1.5% in the latest session but down over the past month and past 3 months.

Over a longer stretch, the stock’s 1 year total shareholder return of 14.94% contrasts with a year to date share price return that is down 20.24%. This suggests that recent momentum has faded even as longer term holders remain in positive territory.

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So with AMTM trading at $24.31 and sitting at a reported 46% discount to analyst targets and roughly 63% below one intrinsic value estimate, is this a mispriced infrastructure contractor, or is the market already factoring in future growth?

Most Popular Narrative: 27.3% Undervalued

Based on the most followed narrative, Amentum Holdings' fair value of about $33.45 sits well above the current $24.31 share price, setting up a clear valuation gap for investors to assess.

Ramp up of large, long duration awards such as the U.S. Space Force Range contract, Sellafield remediation and NASA Cosmos is set to convert the current $47 billion backlog and $20 billion of pending bids into higher run rate revenues and improved operating leverage, supporting sustained earnings growth.

Curious what kind of revenue path, margin lift and earnings step up are built into that backlog story? The most followed narrative spells out a detailed growth and profitability roadmap, tied to specific contracts and a defined earnings profile that underpins this fair value gap.

Result: Fair Value of $33.45 (UNDERVALUED)

However, the story can change if U.S. government funding disruptions delay contract awards or if execution issues on complex projects limit margins and postpone earnings progress.

Another angle on valuation

The cash flow view suggests something different. Our DCF model estimates Amentum’s future cash flows at about $65.17 per share, well above the current $24.31 price, which points to the stock trading at a steep discount. How much weight do you place on cash flows compared with earnings multiples?

AMTM Discounted Cash Flow as at May 2026
AMTM Discounted Cash Flow as at May 2026

Next Steps

Given the mix of concern and optimism in this story, it makes sense to look at the full data set yourself and consider acting before sentiment shifts, starting by weighing the 4 key rewards and 2 important warning signs.

Looking for more investment ideas?

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.