What is Quanta Services, Inc. worth?
With the base-case assumptions below, a discounted cash flow model on Quanta Services, Inc.'s reported free cash flow gives $352.85 per share. The share price was $649.13 on September 25, 2026, 84% above 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% | $213.96 | -67% |
| Base | 15.0% | 9.0% | $352.85 | -46% |
| Bull | 20.0% | 8.0% | $611.47 | -6% |
Sensitivity: base case value per share
| 1.5% | 2.0% | 2.5% | 3.0% | 3.5% | |
|---|---|---|---|---|---|
| 7.0% | $458.01 | $490.80 | $530.87 | $580.96 | $645.37 |
| 8.0% | $379.01 | $400.27 | $425.40 | $455.56 | $492.42 |
| 9.0% | $321.53 | $336.07 | $352.85 | $372.42 | $395.55 |
| 10.0% | $277.95 | $288.29 | $300.01 | $313.40 | $328.85 |
| 11.0% | $243.85 | $251.43 | $259.90 | $269.43 | $280.23 |
Where the presets come from
Base: years 1 to 5 grow at Quanta Services, Inc.'s revenue growth rate over the last 5 fiscal years (20.5% 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