Amentum Holdings (AMTM) Wins A NASA Contract, Is The Stock Cheap?

Amentum Holdings, Inc.

Amentum Holdings, Inc.

AMTM

0.00

Amentum Holdings (AMTM) drew fresh attention after securing a US$974 million Center Maintenance, Operations, and Engineering II contract at NASA’s Langley Research Center, prompting investors to reassess the stock’s government contract exposure.

Amentum Holdings shares have come under pressure this year, with the year to date share price return down 32.38% and the 1 year total shareholder return declining 15.08%, even as the company announced new defence and NASA contract wins and updated earnings guidance.

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Amentum Holdings now trades well below recent analyst value estimates even after the NASA contract bounce. Does that combination of contract momentum and weaker share performance still skew the risk reward in favour of buyers?

Most Popular Narrative: 33.5% Undervalued

The most followed narrative for Amentum Holdings puts fair value at $31.00 compared with the last close at $20.61. This frames the current price as a sharp discount and makes the underlying earnings and backlog assumptions crucial for investors to understand.

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.

Want to see what sits behind that backlog heavy story? The narrative leans on steady top line expansion, fatter margins and a future earnings base that assumes meaningful operating leverage. Curious how those moving parts combine to justify a higher fair value.

Result: Fair Value of $31.00 (UNDERVALUED)

However, investors still need to weigh risks, including potential delays to Amentum Holdings’ US$20b of pending bids, as well as execution challenges on large, complex defence and space contracts.

Another View: What Amentum Holdings’ P/E Is Telling You

The first narrative argues Amentum Holdings is about 33.5% undervalued, yet the current P/E near 24.7x is higher than both peer averages of 20.6x to 22.3x and its own fair ratio estimate of 28.3x. That mix of apparent discount and premium leaves a simple question: How comfortable are you with paying up today for the earnings path analysts expect?

NYSE:AMTM P/E Ratio as at Aug 2026
NYSE:AMTM P/E Ratio as at Aug 2026

Next Steps

Given the mix of concern and optimism around Amentum Holdings, it makes sense to move quickly and test the story against the data yourself. To see how the trade off between those risks and rewards stacks up, start with the 3 key rewards and 2 important warning signs

Looking for more investment ideas beyond Amentum Holdings?

If Amentum Holdings has sharpened your focus, do not stop here. Broaden your watchlist now so you are not relying on a single story.

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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.