Amentum Holdings, Inc. (AMTM) P/E Ratio History
Premium ValuationTrading at 73.0x vs 5Y avg 60.7x · 50th percentile · Premium to historical baseline · Data 2025–2026
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P/E Ratio Analysis
As of September 24, 2026, Amentum Holdings, Inc. (AMTM) trades at a price-to-earnings ratio of 73.0x, with a stock price of $19.71 and trailing twelve-month earnings per share of $0.83.
The current P/E is 20% above its 5-year average of 60.7x. Over the past five years, AMTM's P/E has ranged from a low of 25.6x to a high of 96.1x, placing the current valuation at the 50th percentile of its historical range.
Compared to the Industrials sector median P/E of 26.2x, AMTM trades at a 179% premium to its sector peers. The sector includes 397 companies with P/E ratios ranging from 0.1x to 194.2x.
Relative to the broader market, AMTM commands a significant premium over the S&P 500 median P/E of 25.3x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our AMTM DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
AMTM Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
AMTM P/E vs Peers
Defense Training and Mission Services peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $6B | 17.3 | 1.03 | +7% | |
| $16B | 11.2 | 0.54Best | +21% | |
| $9B | 10.9Lowest | 1.14 | -5% | |
| $14B | 25.5 | 4.47 | +8% | |
| $4B | 11.0 | - | +15% | |
| $6B | 22.1 | 7.16 | -3% | |
| $121B | 24.4 | - | -4% | |
| $259B | 38.7 | - | +40%Best | |
| $73B | 17.7 | 2.00 | +3% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
AMTM Historical P/E Data (2025–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q3 | Jul 03 2026 | $21.24 | $0.83 | 25.6x | -58% |
| FY2026 Q2 | Apr 03 2026 | $27.04 | $0.60 | 45.1x | -26% |
| FY2026 Q1 | Jan 02 2026 | $30.48 | $0.40 | 76.2x | +25% |
| FY2025 Q4 | Oct 03 2025 | $25.95 | $0.27 | 96.1x | +58% |
Average P/E for displayed period: 60.7x
AMTM Chart Terminal
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Historical Returns
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Peer Comparison
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AMTM — Frequently Asked Questions
Quick answers to the most common questions about buying AMTM stock.
What is AMTM's P/E ratio?
Amentum Holdings, Inc. (AMTM) trailing twelve-month P/E ratio is 73.0x, based on TTM diluted EPS of $0.83. The 5-year average P/E is 60.7x and the historical range spans 25.6x to 96.1x.
Is AMTM stock overvalued or undervalued?
AMTM trades at 73.0x P/E, above its 5-year average of 60.7x. The 50th percentile ranking within the 25.6x–96.1x historical range indicates a premium to historical valuation.
Is AMTM stock expensive?
Yes, AMTM is expensive relative to its own history. The current P/E of 73.0x is above the 5-year average of 60.7x and also above the Industrials sector median of 26.2x. The stock sits at the 50th percentile of its 5-year valuation range.
What is AMTM's historical P/E range?
Over the past 5 years, AMTM's P/E ratio has ranged from 25.6x to 96.1x, with a median of 76.2x and an average of 60.7x. The current P/E of 73.0x places the stock at the 50th percentile of this range. Full historical data spans 2025–2026.
How does AMTM's P/E compare to the S&P 500?
AMTM trades at 73.0x P/E versus the S&P 500 median of 25.3x. The 189% premium to the market typically reflects higher expected earnings growth or quality.
How does AMTM's valuation compare to Industrials peers?
Amentum Holdings, Inc. P/E of 73.0x compares to the Industrials sector median of 26.2x. The premium reflects expected growth above peers or stronger fundamentals. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is AMTM's PEG ratio?
AMTM PEG ratio is N/A, based on a P/E of 73.0x and EPS growth of 130.0%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is AMTM's earnings yield?
AMTM earnings yield is 1.37%, the inverse of its 73.0x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.