As at Aug 21, 2026, the WMB stock has a PE ratio of 27.97. This is based on the current EPS of $2.52 and the stock price of $70.49 per share. A decrease of 8% has been recorded in the PE ratio compared to the average of 30.5 of the last four quarters.
WMB PE ratio history
The mean historical PE ratio of Williams Cos over the last ten years is 37.99. The current 27.97 P/E ratio is 26% lower than the historical average. In the past ten years, WMB's PE ratio peaked in the Jun 2020 quarter at 190.2, with a price of $19.02 and an EPS of $0.1. The Mar 2018 quarter marked the lowest point at 10.53, with a price of $24.86 and an EPS of $2.36.
Williams Cos PE ratio by year
Maximum annual increase: 248.01% in 2020
Maximum annual decrease: -82.34% in 2021
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 28.09 | -5.55% | $60.11 | $2.14 |
| 2024 | 29.74 | 122.94% | $54.12 | $1.82 |
| 2023 | 13.34 | -31.87% | $34.83 | $2.61 |
| 2022 | 19.58 | -6% | $32.9 | $1.68 |
| 2021 | 20.83 | -82.34% | $26.04 | $1.25 |
| 2020 | 117.94 | 248.01% | $20.05 | $0.17 |
| 2019 | 33.89 | N/A | $23.72 | $0.7 |
| 2018 | N/A | N/A | $22.05 | -$0.16 |
| 2017 | 11.59 | N/A | $30.49 | $2.63 |
| 2016 | N/A | N/A | $31.14 | -$0.57 |
| 2015 | N/A | N/A | $25.7 | -$0.76 |
| 2014 | 15.29 | -75.02% | $44.94 | $2.94 |
| 2013 | 61.22 | 159.96% | $38.57 | $0.63 |
| 2012 | 23.55 | -54.35% | $32.74 | $1.39 |
| 2011 | 51.59 | N/A | $33.02 | $0.64 |
Williams Cos PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Jun 2026 | 29.5 | -7.17% | $74.34 | $2.52 |
| Mar 2026 | 31.78 | 13.14% | $72.78 | $2.29 |
| Dec 2025 | 28.09 | -13.97% | $60.11 | $2.14 |
| Sep 2025 | 32.65 | 3.45% | $63.35 | $1.94 |
| Jun 2025 | 31.56 | -1.25% | $62.81 | $1.99 |
| Mar 2025 | 31.96 | 7.46% | $59.76 | $1.87 |
| Dec 2024 | 29.74 | 54.41% | $54.12 | $1.82 |
| Sep 2024 | 19.26 | 5.59% | $45.65 | $2.37 |
| Jun 2024 | 18.24 | 11.42% | $42.5 | $2.33 |
| Mar 2024 | 16.37 | 22.71% | $38.97 | $2.38 |
| Dec 2023 | 13.34 | -11.71% | $34.83 | $2.61 |
| Sep 2023 | 15.11 | 0.94% | $33.69 | $2.23 |
| Jun 2023 | 14.97 | 6.78% | $32.63 | $2.18 |
| Mar 2023 | 14.02 | -28.4% | $29.86 | $2.13 |
| Dec 2022 | 19.58 | 12.14% | $32.9 | $1.68 |
WMB Price vs fair value
WMB average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
Currently, WMB's PE ratio is higher than its 3 and 5-year historical averages, but it is lower than the 10-year average.
PE comparison
Williams Cos's P/E of 27.97 is above the Energy sector and the industry average. In comparison with its Energy sector average of 15.99, Williams Cos's P/E is 75% higher.
WMB PE vs peers
Frequently asked questions
What is Williams Cos's PE ratio?
The price to earnings ratio for WMB stock as of Aug 21, 2026, stands at 27.97.
What is the 3-year average PE ratio for Williams Cos (WMB)?
Over the last 3 years, the average price to earnings ratio for WMB stock is 24.8.
What is the 5-year average PE ratio for Williams Cos (WMB)?
Over the last 5 years, the average price to earnings ratio for WMB stock is 23.38.
What is the highest PE ratio for WMB?
The highest quarterly PE ratio in the last ten years has been 190.2 and it was in the Jun 2020 quarter.
How does the current PE ratio for WMB compare to its historical average?
WMB's current price to earnings ratio is 26% below its 10-year historical average.
How is WMB's PE ratio calculated (Williams Cos PE ratio formula)?
The P/E ratio is calculated by taking the latest stock price and dividing it by the EPS for the last 12 months. As of today (Aug 21, 2026), Williams Cos's stock price is $70.49. The earnings per share for the trailing twelve months (TTM) ending Jun 2026 is $2.52. Therefore, Williams Cos's PE ratio for today is 27.97. PE RATIO(27.97) = STOCK PRICE($70.49) / TTM EPS($2.52)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.