PetronPHS:PCOR -1.35%90 PB Ratio is 0.18 as of Jun. 26, 2026, which is 49% below its 10-year median of 0.35. GuruFocus rates PHS:PCOR with a GF Score™ of 90/100 and a GF Value™ of ₱3.04 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 923 Oil & Gas companies, Petron ranks better than 98.16% 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), Petron's share price is ₱2.20. Petron's Book Value per Share for the quarter that ended in Mar. 2026 was ₱12.42. Hence, Petron's PB Ratio of today is 0.18.
Good Sign:
Petron Corp stock PB Ratio (=0.18) is close to 10-year low of 0.17.
The historical rank and industry rank for Petron's PB Ratio or its related term are showing as below:
PHS:PCOR'
s PB Ratio Range Over the Past 10 Years
Min: 0.17 Med: 0.35 Max: 1.24
Current: 0.18
During the past 13 years, Petron's highest PB Ratio was 1.24. The lowest was 0.17. And the median was 0.35.
PHS:PCOR's PB Ratio is ranked better than 98.16% of 923
companies
in the Oil & Gas industry
Industry Median: 1.39
vs PHS:PCOR: 0.18
During the past 12 months, Petron's average Book Value Per Share Growth Rate was 14.90% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 3.30% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 4.30% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 2.60% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Petron was 24.00% per year. The lowest was -5.20% per year. And the median was 5.30% 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.
Petron PB Ratio Related Terms
Petron PB Ratio Historical Data
* Premium members only.
The historical data trend for Petron'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, Petron'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.
Petron PB Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Petron's PB Ratio distribution charts can be found below:
* The bar in red indicates where Petron'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.
Petron'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.
Petron (PHS:PCOR) has a PB Ratio of 0.18 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 Petron and its competitors. This is 49% below median its historical median of 0.35. Over the past decade, Petron's PB Ratio has ranged from 0.17 to 1.24. According to the industry distribution chart, Petron ranks #17 out of 923 companies in the Oil & Gas industry, placing it in the top 1.8%.
Is Petron's PB Ratio too high?
Petron's current PB Ratio of 0.18 is 49% below median its 10-year median of 0.35. Over the past 10 years, this metric has ranged from a low of 0.17 to a high of 1.24. The Oil & Gas industry median PB Ratio is 1.39. Petron's value of 0.18 is 87.1% below this industry median. Based on the distribution chart, Petron ranks #17 out of 923 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Petron has a GF Score™ of 90/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Petron's PB Ratio compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Petron ranks #17 out of 923 companies for PB Ratio. This places Petron in the top 2% of its industry — outperforming the majority of peers. The industry median PB Ratio is 1.39. Petron's value of 0.18 is 87.1% below this benchmark. Historically, Petron's own PB Ratio has ranged from 0.17 to 1.24 over the past decade. While the company's 10-year median is 0.35 vs. the industry median of 1.39, Petron has consistently been below 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 1.39, 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. Petron's current PB Ratio of 0.18 is 87.1% below 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 Petron and its competitors. For the Oil & Gas industry, the median PB Ratio is 1.39 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Petron's current PB Ratio is 0.18, which is 49% below median its own 10-year median of 0.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Petron stock overvalued right now?
Based on GuruFocus' analysis, Petron (PHS:PCOR) is currently considered Modestly Undervalued. The stock's GF Value™ is ₱3.04, compared to a current price of ₱2.20 — trading 27.6% below its estimated fair value. The current PB Ratio is 0.18, which is 49% below median its 10-year median of 0.35 and 87.1% below the Oil & Gas industry median of 1.39. Petron's overall GF Score™ is 90/100 with 3 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 Petron (PHS:PCOR), the current PB Ratio is 0.18 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 Petron (PHS:PCOR) Overvalued in 2026?
Based on GuruFocus' analysis, Petron stock appears to be undervalued.
The current stock price of ₱2.20 is trading 27.6% below its estimated GF Value™ of ₱3.04.
GuruFocus considers Petron to be Modestly Undervalued.
Key valuation signals for PHS:PCOR:
PB Ratio: 0.18 (49% below median its 10-year median of 0.35)
GF Value™: ₱3.04 vs. price of ₱2.20 (27.6% below fair value)
Industry Position: 87.1% below the Oil & Gas median (#17 of 923)
No single metric tells the full story. See the PHS:PCOR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Petron Corporation is the only oil refining and the marketing company in the Philippines. Its refinery processes crude oil into a full range of world-class petroleum products including diesel, gasoline, jet fuel, liquefied petroleum gas (LPG), kerosene, and petrochemicals. The company's sources are Sales of petroleum and other related products which include gasoline, diesel and kerosene offered to motorists; Sales of fuel, LPG, and lubricants to industrial customers including manufacturing, transportation, aviation, and construction; Sales of LPG and lubricants; Lease of real properties and equipment at the service stations; Export sales of various petroleum and non-fuel products to other countries. It has presence in Local and International also but majority of revenue comes from Local.
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