What is Amentum Holdings, Inc. worth?
With the base-case assumptions below, a discounted cash flow model on Amentum Holdings, Inc.'s reported free cash flow gives $56.07 per share. The share price was $19.19 on September 25, 2026, 66% below that value.
Inputs from the filings
Three sets of assumptions
| Case | Growth yrs 1-5 | Discount rate | Value per share | Value vs price |
|---|---|---|---|---|
| Bear | 10.0% | 10.0% | $28.66 | +49% |
| Base | 15.0% | 9.0% | $56.07 | +192% |
| Bull | 20.0% | 8.0% | $107.13 | +458% |
Sensitivity: base case value per share
| 1.5% | 2.0% | 2.5% | 3.0% | 3.5% | |
|---|---|---|---|---|---|
| 7.0% | $76.83 | $83.31 | $91.22 | $101.10 | $113.82 |
| 8.0% | $61.24 | $65.44 | $70.40 | $76.35 | $83.63 |
| 9.0% | $49.89 | $52.76 | $56.07 | $59.94 | $64.50 |
| 10.0% | $41.29 | $43.33 | $45.64 | $48.29 | $51.34 |
| 11.0% | $34.56 | $36.06 | $37.73 | $39.61 | $41.74 |
Where the presets come from
Base: years 1 to 5 grow at Amentum Holdings, Inc.'s revenue growth rate over the last 3 fiscal years (23.3% a year), held between -5% and 15%. Years 6 to 10 grow halfway between that and the long-run rate of 2.5%. Future cash is discounted at 9% a year.
Bear: 5 points less growth, 2% long-run growth, 10% discount rate. Bull: 5 points more growth (at most 25%), 3% long-run growth, 8% discount rate.
Value per share = (present value of 10 years of free cash flow + present value of everything after + cash - debt) / diluted shares.
This is a model run on assumptions, not a recommendation or a price target. Small changes in the discount rate or growth move the result a lot, as the table above shows. Change them yourself in the calculator.
Adjust the assumptions
Move the sliders for growth, long-run growth and discount rate, or switch to average free cash flow, and see the value per share change.
Adjust the assumptions