Petron (PHS:PCOR) Cyclically Adjusted Book per Share: ₱12.11 (As of Mar. 2026)


PHS:PCOR Petron Corp PHS:PCOR
90 GF Score
Price ₱2.20
GF Value ₱3.04
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is Petron Cyclically Adjusted Book per Share?

Petron PHS:PCOR -1.35% 90 Cyclically Adjusted Book per Share is ₱12.11 as of Mar. 2026. 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.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Petron's adjusted book value per share for the three months ended in Mar. 2026 was ₱12.422. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is ₱12.11 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Petron's average Cyclically Adjusted Book Growth Rate was 2.90% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 4.40% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Petron was 7.80% per year. The lowest was 1.20% per year. And the median was 6.40% per year.

As of today (2026-06-26), Petron's current stock price is ₱2.20. Petron's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was ₱12.11. Petron's Cyclically Adjusted PB Ratio of today is 0.18.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Petron was 1.44. The lowest was 0.18. And the median was 0.32.


Petron  (PHS:PCOR) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Petron's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=2.20/12.11
=0.18

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Petron was 1.44. The lowest was 0.18. And the median was 0.32.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Petron Cyclically Adjusted Book per Share Related Terms


Petron Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Petron's Cyclically Adjusted Book per Share 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.

Petron Cyclically Adjusted Book per Share Chart

Petron Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 10.42 11.45 11.60 11.65 11.88

Petron Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 11.77 11.83 11.90 11.88 12.11

PHS:PCOR vs VLO, MPC, PSX: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas Refining & Marketing subindustry, Petron's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted 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 Cyclically Adjusted PB Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Petron's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Petron's Cyclically Adjusted PB Ratio falls into.


PHS:PCOR
90GF Score
Petron Corp PHS:PCOR
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Petron Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Petron's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=12.422/330.2130*330.2130
=12.422

Current CPI (Mar. 2026) = 330.2130.

Petron Quarterly Data

Book Value per Share CPI Adj_Book
201606 9.127 241.018 12.505
201609 9.081 241.428 12.421
201612 9.012 241.432 12.326
201703 9.287 243.801 12.579
201706 9.643 244.955 12.999
201709 9.801 246.819 13.113
201712 9.990 246.524 13.381
201803 10.925 249.554 14.456
201806 11.210 251.989 14.690
201809 9.209 252.439 12.046
201812 8.478 251.233 11.143
201903 8.313 254.202 10.799
201906 10.389 256.143 13.393
201909 10.372 256.759 13.339
201912 9.137 256.974 11.741
202003 8.198 258.115 10.488
202006 7.856 257.797 10.063
202009 8.419 260.280 10.681
202012 8.509 260.474 10.787
202103 8.372 264.877 10.437
202106 11.377 271.696 13.827
202109 11.498 274.310 13.841
202112 11.049 278.802 13.086
202203 11.346 287.504 13.031
202206 11.686 296.311 13.023
202209 11.683 296.808 12.998
202212 11.220 296.797 12.483
202303 11.096 301.836 12.139
202306 10.982 305.109 11.886
202309 9.955 307.789 10.680
202312 9.705 306.746 10.447
202403 9.957 312.332 10.527
202406 10.188 314.175 10.708
202409 12.164 315.301 12.739
202412 10.146 315.605 10.616
202503 10.812 319.799 11.164
202506 10.793 322.561 11.049
202509 11.570 324.800 11.763
202512 12.352 324.054 12.587
202603 12.422 330.213 12.422

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of ₱12.11 mean?
Petron (PHS:PCOR) has a Cyclically Adjusted Book per Share of ₱12.11 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Petron and its competitors.
Is Petron's Cyclically Adjusted Book per Share too high?
Petron's current Cyclically Adjusted Book per Share is ₱12.11. 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 Cyclically Adjusted Book per Share compare to VLO and MPC?
Petron's Cyclically Adjusted Book per Share of ₱12.11 can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for an Oil & Gas company?
A good Cyclically Adjusted Book per Share depends on the Oil & Gas industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Petron and its competitors. Petron's current Cyclically Adjusted Book per Share is ₱12.11. 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 Cyclically Adjusted Book per Share is ₱12.11. 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 Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Petron (PHS:PCOR), the current Cyclically Adjusted Book per Share is ₱12.11 as of Mar. 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:

  • Cyclically Adjusted Book per Share: ₱12.11
  • GF Value™: ₱3.04 vs. price of ₱2.20 (27.6% below fair value)
  • GF Score™: 90/100 with 3 warning signs

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 Business Description

Industry EnergyOil & Gas
Other Exchanges PRF3B.PFD:Philippines
Address 40 San Miguel Avenue, SMC Head Office Complex, Mandaluyong City, PHL, 1550
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.
90GF Score

Get the complete analysis for PHS:PCOR

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₱2.20
Price
₱3.04
GF Value