IRPSY (IRPC PCL) Cyclically Adjusted Book per Share: $8.33 (As of Mar. 2026)


IRPSY IRPC PCL IRPSY
46 GF Score
Price $6.21
GF Value $2.53
Valuation Significantly Overvalued
! 3 Warning Signs
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What is IRPC PCL Cyclically Adjusted Book per Share?

IRPC PCL IRPSY 46 Cyclically Adjusted Book per Share is $8.33 as of Mar. 2026. GuruFocus rates IRPSY with a GF Score™ of 46/100 and a GF Value™ of $2.53 (Significantly Overvalued). 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.

IRPC PCL's adjusted book value per share for the three months ended in Mar. 2026 was $11.203. 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 $8.33 for the trailing ten years ended in Mar. 2026.

During the past 12 months, IRPC PCL's average Cyclically Adjusted Book Growth Rate was -0.60% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 0.30% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 2.30% 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 IRPC PCL was 4.10% per year. The lowest was 0.30% per year. And the median was 2.45% per year.

As of today (2026-07-01), IRPC PCL's current stock price is $6.21. IRPC PCL's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $8.33. IRPC PCL's Cyclically Adjusted PB Ratio of today is 0.75.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of IRPC PCL was 1.95. The lowest was 0.15. And the median was 0.66.


IRPC PCL  (OTCPK:IRPSY) 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.

IRPC PCL's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=6.21/8.33
=0.75

* 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 IRPC PCL was 1.95. The lowest was 0.15. And the median was 0.66.


Be Aware

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


IRPC PCL Cyclically Adjusted Book per Share Related Terms


IRPC PCL Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for IRPC PCL'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.

IRPC PCL Cyclically Adjusted Book per Share Chart

IRPC PCL 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 14.69 15.38 23.08 38.06 16.51

IRPC PCL 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 51.78 15.59 14.78 16.51 8.33

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

For the Oil & Gas Refining & Marketing subindustry, IRPC PCL'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.


IRPC PCL Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

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


IRPSY
46GF Score
IRPC PCL IRPSY
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

IRPC PCL 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, IRPC PCL'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)
=11.203/330.2130*330.2130
=11.203

Current CPI (Mar. 2026) = 330.2130.

IRPC PCL Quarterly Data

Book Value per Share CPI Adj_Book
201606 10.831 241.018 14.839
201609 11.205 241.428 15.326
201612 11.081 241.432 15.156
201703 11.707 243.801 15.856
201706 11.519 244.955 15.528
201709 12.309 246.819 16.468
201712 13.146 246.524 17.609
201803 14.148 249.554 18.721
201806 13.330 251.989 17.468
201809 13.371 252.439 17.490
201812 13.075 251.233 17.185
201903 13.499 254.202 17.535
201906 13.565 256.143 17.488
201909 13.592 256.759 17.480
201912 13.509 256.974 17.359
202003 11.121 258.115 14.227
202006 11.399 257.797 14.601
202009 11.559 260.280 14.665
202012 12.301 260.474 15.594
202103 12.709 264.877 15.844
202106 13.160 271.696 15.994
202109 12.578 274.310 15.141
202112 12.773 278.802 15.128
202203 13.116 287.504 15.064
202206 12.621 296.311 14.065
202209 11.447 296.808 12.735
202212 11.196 296.797 12.457
202303 11.337 301.836 12.403
202306 10.791 305.109 11.679
202309 10.831 307.789 11.620
202312 10.632 306.746 11.445
202403 10.557 312.332 11.161
202406 10.159 314.175 10.678
202409 10.469 315.301 10.964
202412 10.040 315.605 10.505
202503 9.974 319.799 10.299
202506 9.987 322.561 10.224
202509 10.232 324.800 10.403
202512 10.223 324.054 10.417
202603 11.203 330.213 11.203

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 $8.33 mean?
IRPC PCL (IRPSY) has a Cyclically Adjusted Book per Share of $8.33 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 IRPC PCL and its competitors.
Is IRPC PCL's Cyclically Adjusted Book per Share too high?
IRPC PCL's current Cyclically Adjusted Book per Share is $8.33. Overall, IRPC PCL has a GF Score™ of 46/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does IRPC PCL's Cyclically Adjusted Book per Share compare to VLO and MPC?
IRPC PCL's Cyclically Adjusted Book per Share of $8.33 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 IRPC PCL and its competitors. IRPC PCL's current Cyclically Adjusted Book per Share is $8.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is IRPC PCL stock overvalued right now?
Based on GuruFocus' analysis, IRPC PCL (IRPSY) is currently considered Significantly Overvalued. The stock's GF Value™ is $2.53, compared to a current price of $6.21 — trading 145.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is $8.33. IRPC PCL's overall GF Score™ is 46/100 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 IRPC PCL (IRPSY), the current Cyclically Adjusted Book per Share is $8.33 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 IRPC PCL (IRPSY) Overvalued in 2026?

Based on GuruFocus' analysis, IRPC PCL stock appears to be overvalued. The current stock price of $6.21 is trading 145.5% above its estimated GF Value™ of $2.53. GuruFocus considers IRPC PCL to be Significantly Overvalued.

Key valuation signals for IRPSY:

  • Cyclically Adjusted Book per Share: $8.33
  • GF Value™: $2.53 vs. price of $6.21 (145.5% above fair value)
  • GF Score™: 46/100 with 3 warning signs

No single metric tells the full story. See the IRPSY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


IRPC PCL Business Description

Industry EnergyOil & Gas
Address Vibhavadi Rangsit Road, No. 555/2, Energy Complex, Building B, 6th Floor, Chatuchak, Bangkok, THA, 10900
IRPC PCL is a Thailand-based company. The Company is principally engaged in the petroleum and petrochemical business, with its products being refinery, lubricant, olefins, aromatics, plastic resins, and other petrochemical products. The company operates in three reportable segments: the Petroleum products segment, which produces and sells refinery, lubricant, and asphalt; the petrochemical products segment, which produces and sells olefins, aromatics, and related products, including special products; and Other business segments, includes divisions related to the Power plant, jetty, and other utilities. The majority of its revenue is derived from the Petroleum products segment. The Company operates its sales in Thailand, Singapore, and Others.
46GF Score

Get the complete analysis for IRPSY

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

$6.21
Price
$2.53
GF Value