Based on the most recent data from Jun 22, 2026, WMB's PEG ratio comes in at 1.45. This metric factors in a PE of 32.73 with an earnings growth rate of 22.5%.
Looking at the last nine years, WMB's PEG ratio has has been around 0.61 on average. At 1.45, today's PEG ratio sits 138% above its historical average. Within the last nine years, the Sep 2024 quarter recorded the highest PEG value at 3.06. At 0, the Mar 2018 quarter showed the minimum PEG ratio in this period.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 1.6 | 28.09 | 17.6% |
| 2024 | N/A | 29.74 | -30.3% |
| 2023 | 0.24 | 13.34 | 55.4% |
| 2022 | 0.57 | 19.58 | 34.4% |
| 2021 | 0.03 | 20.83 | 635.3% |
| 2020 | N/A | 117.94 | -75.7% |
| 2019 | 0.06 | 33.89 | 537.5% |
| 2018 | N/A | N/A | -106.1% |
| 2017 | 0.02 | 11.59 | 561.4% |
| 2016 | N/A | N/A | 25% |
| 2015 | N/A | N/A | -125.9% |
| 2014 | 0.04 | 15.29 | 366.7% |
| 2013 | N/A | 61.22 | -54.7% |
| 2012 | 0.2 | 23.55 | 117.2% |
| 2011 | 0.39 | 51.59 | 134% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Mar 2026 | 1.41 | 31.78 | 22.5% |
| Dec 2025 | 1.6 | 28.09 | 17.6% |
| Sep 2025 | N/A | 32.65 | -18.1% |
| Jun 2025 | N/A | 31.56 | -14.6% |
| Mar 2025 | N/A | 31.96 | -21.4% |
| Dec 2024 | N/A | 29.74 | -30.3% |
| Sep 2024 | 3.06 | 19.26 | 6.3% |
| Jun 2024 | 2.64 | 18.24 | 6.9% |
| Mar 2024 | 1.4 | 16.37 | 11.7% |
| Dec 2023 | 0.24 | 13.34 | 55.4% |
| Sep 2023 | 0.42 | 15.11 | 36% |
| Jun 2023 | 0.22 | 14.97 | 69% |
| Mar 2023 | 0.18 | 14.02 | 76% |
| Dec 2022 | 0.57 | 19.58 | 34.4% |
| Sep 2022 | 0.18 | 17.46 | 97.6% |
Measured against past performance, WMB's PEG ratio is higher than its 3, 5 and 10-year averages.
Williams Companies's PEG of 1.45 is above the Energy sector and the industry average. Compared to its Energy sector average of 0.32, Williams Companies's PEG is 353% higher.
Compared to its peers, WMB has a PEG ratio under stock EPD, while above SE's and EQT's.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| EQT EQT Corp | 0.02 | $32.22B |
| SE Sea Ltd | 0.43 | $56.13B |
| WMB Williams Companies Inc | 1.46 | $92.07B |
| EPD Enterprise Products Partners Lp | 12.4 | $79.68B |
According to Jun 22, 2026 data, WMB's PEG ratio sits at 1.45.
WMB has a 3-year average PEG ratio of 1.37.
WMB has a 5-year average PEG ratio of 0.85.
WMB's PEG ratio peaked at 3.06 during the Sep 2024 quarter - the highest in nine years.
WMB currently has a PEG ratio 138% above its 9-year average.
PEG equals PE divided by EPS growth (YoY TTM). As of Jun 22, 2026, Williams Companies has a P/E ratio of 32.73. Earnings grew at 22.5% over the TTM period ending Mar 2026. Applying the formula, this produces a price to earnings growth ratio of 1.45. PEG RATIO(1.45) = PE RATIO(32.73) / EPS GROWTH(22.5%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.