As of Jun 22, 2026, PNW's PEG ratio of 3.24 reflects its valuation relative to its growth. This value reflects a P/E ratio of 18.79 measured against EPS growth of 5.8%.
Pinnacle West Capital's ten years historical PEG ratio has an average of 4.35. Compared to historical data, PNW's 3.24 PE to growth ratio represents a decline of 26%. PNW reached its maximum PEG ratio of 24.56 during the Dec 2016 quarter over the past ten years. The Jun 2024 quarter had the bottom reading at 0.27, indicating the most optimal growth-adjusted valuation.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | N/A | 17.22 | -3.7% |
| 2024 | 0.75 | 15.84 | 21% |
| 2023 | 4.64 | 16.25 | 3.5% |
| 2022 | N/A | 17.81 | -22.1% |
| 2021 | 1.06 | 12.88 | 12.1% |
| 2020 | 7.79 | 16.35 | 2.1% |
| 2019 | 3.75 | 18.77 | 5% |
| 2018 | 4.34 | 18.68 | 4.3% |
| 2017 | 1.93 | 19.49 | 10.1% |
| 2016 | 24.56 | 19.65 | 0.8% |
| 2015 | 1.69 | 16.37 | 9.7% |
| 2014 | N/A | 19.03 | -2.7% |
| 2013 | 2.39 | 14.34 | 6% |
| 2012 | 1.23 | 14.65 | 11.9% |
| 2011 | N/A | 15.49 | -5.2% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Mar 2026 | 3.19 | 18.49 | 5.8% |
| Dec 2025 | N/A | 17.22 | -3.7% |
| Sep 2025 | N/A | 18.11 | -8.5% |
| Jun 2025 | N/A | 18 | -8.8% |
| Mar 2025 | 1.54 | 18.5 | 12% |
| Dec 2024 | 0.75 | 15.84 | 21% |
| Sep 2024 | 0.57 | 16.38 | 28.8% |
| Jun 2024 | 0.27 | 14.01 | 52.7% |
| Mar 2024 | 1.28 | 16.25 | 12.7% |
| Dec 2023 | 4.64 | 16.25 | 3.5% |
| Sep 2023 | N/A | 17.54 | -11% |
| Jun 2023 | N/A | 22.82 | -26.4% |
| Mar 2023 | N/A | 19.42 | -23.2% |
| Dec 2022 | N/A | 17.81 | -22.1% |
| Sep 2022 | N/A | 13.67 | -6.9% |
Measured against past performance, PNW's PEG ratio is higher than its 3 and 5-year averages, though it is below the 10-year average.
Pinnacle West Capital's PEG of 3.24 is above the Utilities sector and the industry average. Compared to its Utilities sector average of 1.29, Pinnacle West Capital's PEG is 151% higher.
Compared to its peers, PNW's PEG ratio is under XEL's but above EIX's and IDA's.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| EIX Edison International | 0.26 | $27.78B |
| AVA Avista Corp | 2.33 | $3.28B |
| IDA Idacorp Inc | 2.82 | $7.91B |
| PNW Pinnacle West Capital Corp | 3.24 | $12.41B |
| XEL Xcel Energy Inc | 8.68 | $49.2B |
| NWE Northwestern Corp | N/A | $4.3B |
PNW shows a PEG ratio of 3.24, per Jun 22, 2026 data.
Historical data over a 3-year period places PNW's average PEG ratio at 1.75.
Historical data over a 5-year period places PNW's average PEG ratio at 1.7.
The Dec 2016 quarter marked the ten years high at 24.56 for PNW's PEG ratio.
Currently, PNW's PEG ratio stands 26% lower than its 10-year historical average.
When a company's earnings growth trails its valuation, the PEG ratio tends to be elevated - as seen with PNW's 3.24 value.
The PEG ratio comes from taking PE and dividing by the rate at which earnings are growing (YoY TTM). As of Jun 22, 2026, Pinnacle West Capital has a P/E ratio of 18.79. Earnings grew at 5.8% over the TTM period ending Mar 2026. Applying the formula, this produces a price to earnings growth ratio of 3.24. PEG RATIO(3.24) = PE RATIO(18.79) / EPS GROWTH(5.8%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.