Based on the most recent data from Nov 11, 2026, WMB's PEG ratio comes in at 0.86. This metric factors in a PE of 27.03 with an earnings growth rate of 31.4%. Relative to the 1.24 average from the previous four quarters, the PEG ratio has contracted by 31%.
WMB PEG ratio history
Looking at the last ten years, WMB's PEG ratio has has been around 0.63 on average. At 0.86, today's PEG ratio sits 37% above its historical average. Within the last ten 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.
Williams Cos PEG ratio by year
| 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% |
Williams Cos PEG ratio by quarter (TTM)
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Sep 2026 | 0.85 | 26.65 | 31.4% |
| Jun 2026 | 1.11 | 29.5 | 26.6% |
| 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% |
WMB average PEG ratio chart
Measured against past performance, WMB's PEG ratio is higher than its 10-year average, yet it is below the 3 and 5-year averages.
PEG comparison
Williams Cos's PEG of 0.86 is above the Energy sector and the industry average. Compared to its Energy sector average of 0.2, Williams Cos's PEG is 330% higher.
WMB EPS growth
WMB Price vs fair value
WMB PEG vs peers
Compared to its peers, WMB has a PEG ratio under stocks EPD and SE, while above EQT's.
Frequently asked questions
What is Williams Cos's PEG ratio?
According to Nov 11, 2026 data, WMB's PEG ratio sits at 0.86.
What is the 3-year average PEG ratio for Williams Cos (WMB)?
WMB has a 3-year average PEG ratio of 1.54.
What is the 5-year average PEG ratio for Williams Cos (WMB)?
WMB has a 5-year average PEG ratio of 0.97.
What is the highest PEG ratio for WMB?
WMB's PEG ratio peaked at 3.06 during the Sep 2024 quarter - the highest in ten years.
How does the current PEG ratio for WMB compare to its historical average?
WMB currently has a PEG ratio 37% above its 10-year average.
How is WMB's PEG ratio calculated (Williams Cos PEG ratio formula)?
PEG equals PE divided by EPS growth (YoY TTM). As of Nov 11, 2026, Williams Cos has a P/E ratio of 27.03. Earnings grew at 31.4% over the TTM period ending Sep 2026. Applying the formula, this produces a price to earnings growth ratio of 0.86. PEG RATIO(0.86) = PE RATIO(27.03) / EPS GROWTH(31.4%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.