Phillips 66MEX:PSX 66 PB Ratio is 2.47 as of Jun. 26, 2026, which is 34% above its 10-year median of 1.84. GuruFocus rates MEX:PSX with a GF Score™ of 66/100 and a GF Value™ of MXN2,552.07 (Modestly Overvalued). The stock has 5 warning signs investors should review. Among 923 Oil & Gas companies, Phillips 66 ranks worse than 72.37% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-06-26), Phillips 66's share price is MXN3169.00. Phillips 66's Book Value per Share for the quarter that ended in Mar. 2026 was MXN1,283.09. Hence, Phillips 66's PB Ratio of today is 2.47.
Warning Sign:
Phillips 66 stock PB Ratio (=2.37) is close to 10-year high of 2.6.
The historical rank and industry rank for Phillips 66's PB Ratio or its related term are showing as below:
MEX:PSX'
s PB Ratio Range Over the Past 10 Years
Min: 0.86 Med: 1.84 Max: 2.6
Current: 2.37
During the past 13 years, Phillips 66's highest PB Ratio was 2.60. The lowest was 0.86. And the median was 1.84.
MEX:PSX's PB Ratio is ranked worse than 72.37% of 923
companies
in the Oil & Gas industry
Industry Median: 1.42
vs MEX:PSX: 2.37
During the past 12 months, Phillips 66's average Book Value Per Share Growth Rate was 6.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 4.60% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 12.00% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 5.10% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Phillips 66 was 17.80% per year. The lowest was -7.50% per year. And the median was 4.85% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Phillips 66 PB Ratio Related Terms
Phillips 66 PB Ratio Historical Data
* Premium members only.
The historical data trend for Phillips 66's PB Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Oil & Gas Refining & Marketing subindustry, Phillips 66's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Phillips 66 PB Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Phillips 66's PB Ratio distribution charts can be found below:
* The bar in red indicates where Phillips 66's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Phillips 66's PB Ratio for today is calculated as follows:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Phillips 66 (MEX:PSX) has a PB Ratio of 2.47 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Phillips 66 and its competitors. This is 34% above median its historical median of 1.84. Over the past decade, Phillips 66's PB Ratio has ranged from 0.86 to 2.60. According to the industry distribution chart, Phillips 66 ranks #668 out of 923 companies in the Oil & Gas industry, placing it in the top 72.4%.
Is Phillips 66's PB Ratio too high?
Phillips 66's current PB Ratio of 2.47 is 34% above median its 10-year median of 1.84. Over the past 10 years, this metric has ranged from a low of 0.86 to a high of 2.60. The Oil & Gas industry median PB Ratio is 1.42. Phillips 66's value of 2.47 is 73.9% above this industry median. Based on the distribution chart, Phillips 66 ranks #668 out of 923 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Phillips 66 has a GF Score™ of 66/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Phillips 66's PB Ratio compare to MPC and VLO?
According to the Oil & Gas industry distribution chart, Phillips 66 ranks #668 out of 923 companies for PB Ratio. This places Phillips 66 in the lower half of its industry. The industry median PB Ratio is 1.42. Phillips 66's value of 2.47 is 73.9% above this benchmark. Historically, Phillips 66's own PB Ratio has ranged from 0.86 to 2.60 over the past decade. While the company's 10-year median is 1.84 vs. the industry median of 1.42, Phillips 66 has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for an Oil & Gas company?
The median PB Ratio among Oil & Gas companies is 1.42, based on 923 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Phillips 66's current PB Ratio of 2.47 is 73.9% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Phillips 66 and its competitors. For the Oil & Gas industry, the median PB Ratio is 1.42 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Phillips 66's current PB Ratio is 2.47, which is 34% above median its own 10-year median of 1.84. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Phillips 66 stock overvalued right now?
Based on GuruFocus' analysis, Phillips 66 (MEX:PSX) is currently considered Modestly Overvalued. The stock's GF Value™ is MXN2,552.07, compared to a current price of MXN3,169.00 — trading 24.2% above its estimated fair value. The current PB Ratio is 2.47, which is 34% above median its 10-year median of 1.84 and 73.9% above the Oil & Gas industry median of 1.42. Phillips 66's overall GF Score™ is 66/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Phillips 66 (MEX:PSX), the current PB Ratio is 2.47 as of Jun. 26, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Phillips 66 (MEX:PSX) Overvalued in 2026?
Based on GuruFocus' analysis, Phillips 66 stock appears to be overvalued.
The current stock price of MXN3,169.00 is trading 24.2% above its estimated GF Value™ of MXN2,552.07.
GuruFocus considers Phillips 66 to be Modestly Overvalued.
Key valuation signals for MEX:PSX:
PB Ratio: 2.47 (34% above median its 10-year median of 1.84)
GF Value™: MXN2,552.07 vs. price of MXN3,169.00 (24.2% above fair value)
Industry Position: 73.9% above the Oil & Gas median (#668 of 923)
No single metric tells the full story. See the MEX:PSX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Phillips 66 is an independent refiner that owns or holds interest in 10 refineries with a total crude throughput capacity of 2.0 million barrels per day, or mmb/d, at the end of 2025. The midstream segment comprises extensive transportation and NGL processing assets. It includes 70,000 miles of crude oil, refined petroleum product, NGL and natural gas pipeline systems, and a comprehensive set of refined petroleum product, NGL and crude oil terminals, gathering and processing plants and fractionation facilities and various other storage and loading facilities. Its CPChem chemical joint venture operates facilities primarily in the United States and the Middle East and produces olefins and polyolefins.
66GF Score
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