IRPSY (IRPC PCL) Cyclically Adjusted PB Ratio: 0.75 (As of Jul. 22, 2026) — 14% Above Median

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IRPSY IRPC PCL IRPSY
46 GF Score
Price $6.21
GF Value $2.55
Valuation Significantly Overvalued
! 9 Warning Signs
View Full Analysis

What is IRPC PCL Cyclically Adjusted PB Ratio?

IRPC PCL IRPSY 46 Cyclically Adjusted PB Ratio is 0.75 as of Jul. 22, 2026, which is 14% above its 10-year median of 0.66. GuruFocus rates IRPSY with a GF Score™ of 46/100 and a GF Value™ of $2.55 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 773 Oil & Gas companies, IRPC PCL ranks better than 77.23% on this metric.

As of today (2026-07-22), IRPC PCL's current share 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 for today is 0.75.

The historical rank and industry rank for IRPC PCL's Cyclically Adjusted PB Ratio or its related term are showing as below:

IRPSY' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.15   Med: 0.66   Max: 1.95
Current: 0.45

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

IRPSY's Cyclically Adjusted PB Ratio is ranked better than
77.23% of 773 companies
in the Oil & Gas industry
Industry Median: 1.2 vs IRPSY: 0.45

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 adjusted book value per share data 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.

Shiller PE for Stocks: The True Measure of Stock Valuation


IRPC PCL  (OTCPK:IRPSY) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


IRPC PCL Cyclically Adjusted PB Ratio Related Terms


IRPC PCL Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for IRPC PCL's Cyclically Adjusted 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.

IRPC PCL Cyclically Adjusted PB Ratio Chart

IRPC PCL Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.87 0.65 0.43 0.26 0.21

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 PB Ratio 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 0.19 0.16 0.24 0.21 0.42

IRPSY vs VLO, MPC, PSX: Cyclically Adjusted PB Ratio 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 PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

IRPC PCL Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

IRPC PCL's Cyclically Adjusted PB Ratio for 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.

IRPC PCL's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

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.

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.

What does a Cyclically Adjusted PB Ratio of 0.75 mean?
IRPC PCL (IRPSY) has a Cyclically Adjusted PB Ratio of 0.75 as of Jul. 22, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on IRPC PCL and its competitors. This is 14% above median its historical median of 0.66. Over the past decade, IRPC PCL's Cyclically Adjusted PB Ratio has ranged from 0.15 to 1.95. According to the industry distribution chart, IRPC PCL ranks #176 out of 773 companies in the Oil & Gas industry, placing it in the top 22.8%.
Is IRPC PCL's Cyclically Adjusted PB Ratio too high?
IRPC PCL's current Cyclically Adjusted PB Ratio of 0.75 is 14% above median its 10-year median of 0.66. Over the past 10 years, this metric has ranged from a low of 0.15 to a high of 1.95. The Oil & Gas industry median Cyclically Adjusted PB Ratio is 1.20. IRPC PCL's value of 0.75 is 37.5% below this industry median. Based on the distribution chart, IRPC PCL ranks #176 out of 773 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. 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 PB Ratio compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, IRPC PCL ranks #176 out of 773 companies for Cyclically Adjusted PB Ratio. This places IRPC PCL in the top 23% of its industry — outperforming the majority of peers. The industry median Cyclically Adjusted PB Ratio is 1.20. IRPC PCL's value of 0.75 is 37.5% below this benchmark. Historically, IRPC PCL's own Cyclically Adjusted PB Ratio has ranged from 0.15 to 1.95 over the past decade. While the company's 10-year median is 0.66 vs. the industry median of 1.20, IRPC PCL 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 Cyclically Adjusted PB Ratio for an Oil & Gas company?
The median Cyclically Adjusted PB Ratio among Oil & Gas companies is 1.20, based on 773 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. IRPC PCL's current Cyclically Adjusted PB Ratio of 0.75 is 37.5% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on IRPC PCL and its competitors. For the Oil & Gas industry, the median Cyclically Adjusted PB Ratio is 1.20 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. IRPC PCL's current Cyclically Adjusted PB Ratio is 0.75, which is 14% above median its own 10-year median of 0.66. 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 $2.55, compared to a current price of $6.21 — trading 143.5% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 0.75, which is 14% above median its 10-year median of 0.66 and 37.5% below the Oil & Gas industry median of 1.20. IRPC PCL's overall GF Score™ is 46/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For IRPC PCL (IRPSY), the current Cyclically Adjusted PB Ratio is 0.75 as of Jul. 22, 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 143.5% above its estimated GF Value™ of $2.55. GuruFocus considers IRPC PCL to be Significantly Overvalued.

Key valuation signals for IRPSY:

  • Cyclically Adjusted PB Ratio: 0.75 (14% above median its 10-year median of 0.66)
  • GF Value™: $2.55 vs. price of $6.21 (143.5% above fair value)
  • GF Score™: 46/100 with 9 warning signs
  • Industry Position: 37.5% below the Oil & Gas median (#176 of 773)

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 PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$6.21
Price
$2.55
GF Value