Amentum Holdings, Inc. (AMTM) stock
Close on Nov 12, 2026Market cap $5.42BP/E 26.7Yield –
Amentum Holdings, Inc. grew revenue 11.4% to $14.13B over the twelve months to Jul 3, 2026. Operating income rose 60.2% to $596.00M, moving the operating margin from 2.9% to 4.2%. Free cash flow was $474.00M, up 243.5% from a year earlier. At the latest close the market valued the company at $5.42B, 26.7 times its earnings.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Jul 3, 2026
Valuation
- Market cap
- $5.42B
- P/E ratio
- 26.7
- Price to sales
- 0.38
- Price to book
- 1.15
- Dividend yield
- –
- Free cash flow yield
- 8.75%
Fundamentals
- Revenue
- $14.13B
- Net income
- $204.00M
- EPS, diluted
- $0.83
- Free cash flow
- $474.00M
- Book value per share
- $19.16
- Diluted shares
- 245M
Trading
- Next earnings
- Nov 23, 2026 (estimated, after the close)
- Previous close
- $22.73
- Open
- $22.79
- Day's range
- $21.92 – $22.92
- Volume
- 1,329,880
- Average volume (20 days)
- 1,922,484
- Index membership
- S&P SmallCap 600 (since Feb 2025), Russell 1000 (since Sep 2024), Russell 3000 (since Nov 2024)
- Beta (5 years)
- 1.22
- 52-week range
- $17.72 – $38.11
- RSI (14 days)
- 63.4
- Volatility (1 year)
- 47.1%
- Relative volume
- 0.70×
- WACC
- 8.6%
Index membership is inferred from the holdings of funds that track each index (SPSM, IJR, IWB, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2024, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.
| Period | AMTM | S&P 500 | Difference | AMTM per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +17.1% | -2.7% | +19.8 pts | ||
| 3 months | -1.6% | -1.7% | +0.1 pts | ||
| Year to date | -23.6% | +11.9% | −35.5 pts | ||
| 1 year | -3.5% | +12.0% | −15.5 pts |
Five years at a glance
Fiscal years 2021 to 2025 and trailing twelve months, USD
Revenue
Gross profit
Operating income
Net income
EPS, diluted
Free cash flow
Press releases
Releases Amentum filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- Results
- Results
- Results
- Results
- Results
About Amentum
Services-Business Services, NEC
Amentum Holdings, Inc. delivers advanced engineering, technology, and mission-critical solutions to government and commercial clients worldwide. Operating through two core reportable divisions—Digital Solutions and Global Engineering Solutions—the enterprise supplies specialized capabilities that encompass cybersecurity, intelligence analytics, space system engineering, next-generation information technology, and comprehensive environmental cleanup and nuclear services. Its primary customer base consists of the United States federal government, notably defense, energy, intelligence, and space exploration agencies. It also serves allied international government organizations alongside commercial entities across the aerospace, automotive, telecommunications, and energy sectors.
Company profile, executives and historyAmentum stock: common questions
What is Amentum's stock price?
AMTM closed at $22.15 on Nov 12, 2026, down 2.55% on the day. Over the past 52 weeks it traded between $17.72 and $38.11.
What is Amentum's market cap?
Amentum was worth $5.42B at the close on Nov 12, 2026: the share price times the diluted shares outstanding.
What is AMTM's P/E ratio?
AMTM trades at 26.7 times earnings, based on diluted earnings per share of $0.83 over the twelve months to Jul 3, 2026.
How much revenue does Amentum make?
Amentum reported revenue of $14.13B for the twelve months to Jul 3, 2026, up 11.4% from a year earlier.
Does Amentum pay a dividend?
No. Amentum has not paid a cash dividend over the last twelve months.
When does Amentum report earnings next?
Amentum is expected to report Q4 FY2026 results on Nov 23, 2026, after the close. The date is estimated from its past reporting pattern until the company confirms it.
How has AMTM stock performed over the past year?
Including dividends, AMTM returned -3.5% over the past year, against +12.0% for the S&P 500.
How many AMTM shares are sold short?
14M shares were sold short at the latest FINRA report, 8.49% of the float, or 7.2 days of average trading volume.
Who are Amentum's competitors?
Companies most similar to Amentum by business, industry and size include CNXC, GPN, FIS, MMS, LDOS.
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