As of Jun 22, 2026, PWR's PEG ratio of 5.78 reflects its valuation relative to its growth. This value reflects a P/E ratio of 100.02 measured against EPS growth of 17.3%. When compared to the trailing four-quarter average of 3.63, PWR's PEG ratio shows a 59% increase.
Quanta Services's ten years historical PEG ratio has a mean of 2.26. Compared to historical data, PWR's 5.78 PEG ratio represents an increase of 156%. PWR reached its maximum PEG ratio of 18.37 during the Mar 2023 quarter over the past ten years. The Sep 2017 quarter had the bottom reading at 0.15, indicating the most optimal growth-adjusted valuation.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 5.01 | 61.08 | 12.2% |
| 2024 | 2.55 | 51.31 | 20.1% |
| 2023 | 0.84 | 42.07 | 50% |
| 2022 | N/A | 41.67 | -0.9% |
| 2021 | 3.5 | 33.23 | 9.5% |
| 2020 | 1.62 | 22.86 | 14.1% |
| 2019 | 0.34 | 14.75 | 43.8% |
| 2018 | N/A | 15.68 | -5% |
| 2017 | 0.32 | 19.36 | 60.3% |
| 2016 | N/A | 27.66 | -20.8% |
| 2015 | 0.72 | 12.74 | 17.8% |
| 2014 | N/A | 21.03 | -27.8% |
| 2013 | 0.56 | 16.88 | 29.9% |
| 2012 | 0.14 | 18.95 | 132.3% |
| 2011 | N/A | 34.74 | -15.1% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Mar 2026 | 4.29 | 74.19 | 17.3% |
| Dec 2025 | 5.01 | 61.08 | 12.2% |
| Sep 2025 | 2.51 | 60.41 | 24.1% |
| Jun 2025 | 2.71 | 57.55 | 21.2% |
| Mar 2025 | 2.07 | 40.28 | 19.5% |
| Dec 2024 | 2.55 | 51.31 | 20.1% |
| Sep 2024 | 3.59 | 53.92 | 15% |
| Jun 2024 | 1.35 | 46.88 | 34.8% |
| Mar 2024 | 0.96 | 49.2 | 51.3% |
| Dec 2023 | 0.84 | 42.07 | 50% |
| Sep 2023 | 0.66 | 38.89 | 59.3% |
| Jun 2023 | 1.85 | 48.87 | 26.4% |
| Mar 2023 | 18.37 | 47.75 | 2.6% |
| Dec 2022 | N/A | 41.67 | -0.9% |
| Sep 2022 | N/A | 42.18 | -23% |
Measured against past performance, PWR's PEG ratio sits above its 3, 5 and 10-year averages.
With a PEG of 5.78, PWR stands above the Industrials sector, the industry and its peers average. Looking at its Industrials sector average of 1.13, Quanta Services's PEG is 412% higher.
Relative to its peer stocks EME and MTZ, PWR's PEG ratio is higher. At 5.78, Quanta Services's PEG ratio stands higher than the peer group average of 0.83.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| MYRG Myr Group Inc | 0.16 | $7.27B |
| MTZ Mastec Inc | 0.62 | $30.98B |
| IESC IES Holdings Inc | 0.67 | $14.47B |
| EME EMCOR Group Inc | 0.89 | $37.23B |
| PRIM Primoris Services Corp | 0.92 | $4.46B |
| DY Dycom Industries Inc | 1.32 | $13.98B |
| PWR Quanta Services Inc | 5.53 | $106.14B |
| FLR Fluor Corp | N/A | $7.42B |
PWR shows a PEG ratio of 5.78, per Jun 22, 2026 data.
PWR's 3-year PEG ratio average is 2.37.
PWR's 5-year PEG ratio average is 3.21.
The Mar 2023 quarter marked the ten years high at 18.37 for PWR's PEG ratio.
Currently, PWR's PEG ratio is 156% higher than its 10-year historical average.
Slow earnings growth combined with a high valuation pushes PWR's PEG ratio to 5.78.
PEG equals PE divided by earnings per share growth (YoY TTM). As of Jun 22, 2026, Quanta Services has a P/E ratio of 100.02. Earnings grew at 17.3% over the TTM period ending Mar 2026. Applying the formula, this gives a price to earnings growth ratio of 5.78. PEG RATIO(5.78) = PE RATIO(100.02) / EPS GROWTH(17.3%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.