The current price-to-earnings ratio for Phillips 66 stock as of Aug 21, 2026 is 13.82. This is calculated based on the current EPS of $17.57 and the stock price of $242.87 per share. The PE ratio has decreased by 42% from the past four quarters average of 24.0.
PSX PE ratio history
The average historical PE ratio of Phillips 66 for the last ten years is 17.44. The current P/E ratio of 13.82 is 21% lower than the historical average. In the past ten years, PSX's PE ratio peaked in the Mar 2020 quarter at 76.64, when the stock price was $53.65 and the EPS was $0.7. The lowest point was in the Sep 2022 quarter, when it reached 3.68 with a price of $80.72 and an EPS of $21.92.
Phillips 66 PE ratio by year
Maximum annual increase: 179.64% in 2016
Maximum annual decrease: -81.72% in 2022
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2025 | 11.93 | -47.54% | $129.04 | $10.82 |
| 2024 | 22.74 | 165.65% | $113.93 | $5.01 |
| 2023 | 8.56 | 91.93% | $133.14 | $15.56 |
| 2022 | 4.46 | -81.72% | $104.08 | $23.36 |
| 2021 | 24.4 | N/A | $72.46 | $2.97 |
| 2020 | N/A | N/A | $69.94 | -$9.06 |
| 2019 | 16.38 | 125.62% | $111.41 | $6.8 |
| 2018 | 7.26 | -28.96% | $86.15 | $11.87 |
| 2017 | 10.22 | -65.23% | $101.15 | $9.9 |
| 2016 | 29.39 | 179.64% | $86.41 | $2.94 |
| 2015 | 10.51 | 23.07% | $81.8 | $7.78 |
| 2014 | 8.54 | -32.81% | $71.7 | $8.4 |
| 2013 | 12.71 | 56.72% | $77.13 | $6.07 |
| 2012 | 8.11 | N/A | $53.1 | $6.55 |
| 2011 | N/A | N/A | N/A | $7.61 |
Phillips 66 PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Jun 2026 | 9.62 | -52.8% | $169.05 | $17.57 |
| Mar 2026 | 20.38 | 70.83% | $182.18 | $8.94 |
| Dec 2025 | 11.93 | -77.98% | $129.04 | $10.82 |
| Sep 2025 | 54.19 | 36.74% | $136.02 | $2.51 |
| Jun 2025 | 39.63 | 42.5% | $119.3 | $3.01 |
| Mar 2025 | 27.81 | 22.3% | $123.48 | $4.44 |
| Dec 2024 | 22.74 | 36% | $113.93 | $5.01 |
| Sep 2024 | 16.72 | 39.33% | $131.45 | $7.86 |
| Jun 2024 | 12 | -3.77% | $141.17 | $11.76 |
| Mar 2024 | 12.47 | 45.68% | $163.34 | $13.1 |
| Dec 2023 | 8.56 | 18.56% | $133.14 | $15.56 |
| Sep 2023 | 7.22 | 74.82% | $120.15 | $16.65 |
| Jun 2023 | 4.13 | 5.63% | $95.38 | $23.12 |
| Mar 2023 | 3.91 | -12.33% | $101.38 | $25.94 |
| Dec 2022 | 4.46 | 21.2% | $104.08 | $23.36 |
PSX Price vs fair value
PSX 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.
The current PE ratio of PSX is lower than the 3, 5 and 10-year averages.
PE comparison
With a P/E of 13.82, PSX stands below the Energy sector, the industry and its peers average. In comparison with its Energy sector average of 15.99, Phillips 66's P/E is 14% lower.
PSX PE vs peers
Frequently asked questions
What is Phillips 66's PE ratio?
PSX's price to earnings ratio is 13.82 as of Aug 21, 2026.
What is the 3-year average PE ratio for Phillips 66 (PSX)?
The 3-year average price to earnings ratio for PSX stock is 20.27.
What is the 5-year average PE ratio for Phillips 66 (PSX)?
The 5-year average price to earnings ratio for PSX stock is 16.1.
What is the highest PE ratio for PSX?
In the last ten years, the Mar 2020 quarter recorded the highest quarterly PE ratio at 76.64.
How does the current PE ratio for PSX compare to its historical average?
The current price to earnings ratio of PSX is 21% lower than the 10-year historical average.
How is PSX's PE ratio calculated (Phillips 66 PE ratio formula)?
You can calculate the P/E ratio by dividing the most recent stock price by the trailing twelve months EPS. As of today (Aug 21, 2026), Phillips 66's stock price is $242.87. The earnings per share for the trailing twelve months (TTM) ending Jun 2026 is $17.57. Therefore, Phillips 66's PE ratio for today is 13.82. PE RATIO(13.82) = STOCK PRICE($242.87) / TTM EPS($17.57)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.