POWL currently shows a PEG ratio reading of 4.07 as of Sep 3, 2026. This result reflects a P/E ratio of 33.36 measured against EPS growth of 8.2%. When compared to the trailing 4-quarter average of 3.44, POWL's PEG ratio reflects a 18% increase.
A ten years lookback reveals an average PEG ratio of 0.99 for Powell Industries. Compared to historical data, POWL's 4.07 PEG ratio represents an increase of 311%. POWL hit its maximum PEG ratio of 8.68 during the Mar 2019 quarter over the last ten years. The Mar 2020 quarter marked the lowest reading at 0, indicating the most favorable growth-adjusted valuation.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 1.03 | 20.36 | 19.7% |
| 2024 | 0.1 | 17.75 | 172.5% |
| 2023 | 0.06 | 18.06 | 292.3% |
| 2022 | 0.01 | 18.02 | 1,850% |
| 2021 | N/A | 409.5 | -95.8% |
| 2020 | 0.23 | 16.76 | 71.4% |
| 2019 | 0.2 | 46.61 | 233.3% |
| 2018 | N/A | N/A | 25% |
| 2017 | N/A | N/A | -162.2% |
| 2016 | 0.44 | 29.67 | 66.7% |
| 2015 | N/A | 37.16 | -66.7% |
| 2014 | N/A | 16.81 | -30.8% |
| 2013 | 0.43 | 17.46 | 41% |
| 2012 | 0.01 | 15.53 | 1,137.5% |
| 2011 | N/A | N/A | -111.1% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Jun 2026 | 6.65 | 54.54 | 8.2% |
| Mar 2026 | 4.8 | 35.02 | 7.3% |
| Dec 2025 | 1.27 | 20.55 | 16.2% |
| Sep 2025 | 1.03 | 20.36 | 19.7% |
| Jun 2025 | 0.43 | 14.46 | 34% |
| Mar 2025 | 0.17 | 11.83 | 67.8% |
| Dec 2024 | 0.16 | 16.6 | 105.1% |
| Sep 2024 | 0.1 | 17.75 | 172.5% |
| Jun 2024 | 0.05 | 13.2 | 248.1% |
| Mar 2024 | 0.06 | 16.58 | 271.4% |
| Dec 2023 | 0.04 | 13.58 | 334% |
| Sep 2023 | 0.06 | 18.06 | 292.3% |
| Jun 2023 | 0.06 | 19.42 | 352.2% |
| Mar 2023 | 0.02 | 18.44 | 1,062.5% |
| Dec 2022 | 0.02 | 23.45 | 1,100% |
When comparing to historical data, POWL's PEG ratio sits above the 3, 5 and 10-year averages.
With a PEG of 4.07, POWL stands higher than the Industrials sector and the industry average. Looking at the Industrials sector average of 1.06, Powell Industries's PEG is 284% higher.
Relative to its peer stocks GE and AMSC, POWL's PEG ratio is higher.
According to Sep 3, 2026 figures, POWL's PEG ratio stands at 4.07.
Historical data over a 3-year period puts POWL's average PEG ratio at 1.24.
Historical data over a 5-year period puts POWL's average PEG ratio at 0.88.
POWL's PEG ratio topped out at 8.68 during the Mar 2019 quarter - the highest in ten years.
At present, POWL's PEG ratio is 311% higher than its 10-year historical average.
Slow earnings growth combined with a rich valuation drives POWL's PEG ratio to 4.07.
The PEG ratio derives from taking PE and dividing by the rate at which earnings are growing (YoY TTM). As of Sep 3, 2026, Powell Industries has a PE ratio of 33.36. Earnings grew at 8.2% over the TTM period ending Jun 2026. Applying the formula, this gives a PEG ratio of 4.07. PEG RATIO(4.07) = PE RATIO(33.36) / EPS GROWTH(8.2%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.