Siamgas And Petrochemicals PCL (FRA:4QVA) Cyclically Adjusted PB Ratio: 1.02 (As of Aug. 23, 2026) — 41% Below Median

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FRA:4QVA Siamgas And Petrochemicals PCL FRA:4QVA
50 GF Score
Price €0.21
GF Value €0.16
Valuation Significantly Overvalued
! 9 Warning Signs
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What is Siamgas And Petrochemicals PCL Cyclically Adjusted PB Ratio?

Siamgas And Petrochemicals PCL FRA:4QVA +1.90% 50 Cyclically Adjusted PB Ratio is 1.02 as of Aug. 23, 2026, which is 41% below its 10-year median of 1.73. GuruFocus rates FRA:4QVA with a GF Score™ of 50/100 and a GF Value™ of €0.16 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 757 Oil & Gas companies, Siamgas And Petrochemicals PCL ranks better than 56.54% on this metric.

As of today (2026-08-23), Siamgas And Petrochemicals PCL's current share price is €0.214. Siamgas And Petrochemicals PCL's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €0.21. Siamgas And Petrochemicals PCL's Cyclically Adjusted PB Ratio for today is 1.02.

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

FRA:4QVA' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.77   Med: 1.73   Max: 3.95
Current: 1.03

During the past years, Siamgas And Petrochemicals PCL's highest Cyclically Adjusted PB Ratio was 3.95. The lowest was 0.77. And the median was 1.73.

FRA:4QVA's Cyclically Adjusted PB Ratio is ranked better than
56.54% of 757 companies
in the Oil & Gas industry
Industry Median: 1.23 vs FRA:4QVA: 1.03

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.

Siamgas And Petrochemicals PCL's adjusted book value per share data for the three months ended in Jun. 2026 was €0.294. 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 €0.21 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Siamgas And Petrochemicals PCL  (FRA:4QVA) 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.


Siamgas And Petrochemicals PCL Cyclically Adjusted PB Ratio Related Terms


Siamgas And Petrochemicals PCL Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Siamgas And Petrochemicals 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.

Siamgas And Petrochemicals PCL Cyclically Adjusted PB Ratio Chart

Siamgas And Petrochemicals 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 2.09 1.44 1.08 0.89 0.94

Siamgas And Petrochemicals PCL Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 0.81 0.80 0.94 0.95 0.91

FRA:4QVA vs MPC, VLO, PSX: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas Refining & Marketing subindustry, Siamgas And Petrochemicals 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.


Siamgas And Petrochemicals PCL Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

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


FRA:4QVA
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Siamgas And Petrochemicals PCL FRA:4QVA
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Siamgas And Petrochemicals 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.

Siamgas And Petrochemicals PCL's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=0.214/0.21
=1.02

* 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.

Siamgas And Petrochemicals PCL's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Siamgas And Petrochemicals PCL's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.294/333.9520*333.9520
=0.294

Current CPI (Jun. 2026) = 333.9520.

Siamgas And Petrochemicals PCL Quarterly Data

Book Value per Share CPI Adj_Book
201609 0.123 241.428 0.170
201612 0.140 241.432 0.194
201703 0.152 243.801 0.208
201706 0.143 244.955 0.195
201709 0.142 246.819 0.192
201712 0.157 246.524 0.213
201803 0.155 249.554 0.207
201806 0.157 251.989 0.208
201809 0.155 252.439 0.205
201812 0.146 251.233 0.194
201903 0.159 254.202 0.209
201906 0.164 256.143 0.214
201909 0.163 256.759 0.212
201912 0.180 256.974 0.234
202003 0.174 258.115 0.225
202006 0.167 257.797 0.216
202009 0.171 260.280 0.219
202012 0.185 260.474 0.237
202103 0.211 264.877 0.266
202106 0.201 271.696 0.247
202109 0.217 274.310 0.264
202112 0.235 278.802 0.281
202203 0.257 287.504 0.299
202206 0.243 296.311 0.274
202209 0.248 296.808 0.279
202212 0.229 296.797 0.258
202303 0.231 301.836 0.256
202306 0.204 305.109 0.223
202309 0.221 307.789 0.240
202312 0.222 306.746 0.242
202403 0.237 312.332 0.253
202406 0.242 314.175 0.257
202409 0.237 315.301 0.251
202412 0.255 315.605 0.270
202503 0.250 319.799 0.261
202506 0.223 322.561 0.231
202509 0.217 324.800 0.223
202512 0.226 324.054 0.233
202603 0.258 330.213 0.261
202606 0.294 333.952 0.294

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 1.02 mean?
Siamgas And Petrochemicals PCL (FRA:4QVA) has a Cyclically Adjusted PB Ratio of 1.02 as of Aug. 23, 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 Siamgas And Petrochemicals PCL and its competitors. This is 41% below median its historical median of 1.73. Over the past decade, Siamgas And Petrochemicals PCL's Cyclically Adjusted PB Ratio has ranged from 0.77 to 3.95. According to the industry distribution chart, Siamgas And Petrochemicals PCL ranks #329 out of 757 companies in the Oil & Gas industry, placing it in the top 43.5%.
Is Siamgas And Petrochemicals PCL's Cyclically Adjusted PB Ratio too high?
Siamgas And Petrochemicals PCL's current Cyclically Adjusted PB Ratio of 1.02 is 41% below median its 10-year median of 1.73. Over the past 10 years, this metric has ranged from a low of 0.77 to a high of 3.95. The Oil & Gas industry median Cyclically Adjusted PB Ratio is 1.23. Siamgas And Petrochemicals PCL's value of 1.02 is 17.1% below this industry median. Based on the distribution chart, Siamgas And Petrochemicals PCL ranks #329 out of 757 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Siamgas And Petrochemicals PCL has a GF Score™ of 50/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Siamgas And Petrochemicals PCL's Cyclically Adjusted PB Ratio compare to MPC and VLO?
According to the Oil & Gas industry distribution chart, Siamgas And Petrochemicals PCL ranks #329 out of 757 companies for Cyclically Adjusted PB Ratio. This puts Siamgas And Petrochemicals PCL in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.23. Siamgas And Petrochemicals PCL's value of 1.02 is 17.1% below this benchmark. Historically, Siamgas And Petrochemicals PCL's own Cyclically Adjusted PB Ratio has ranged from 0.77 to 3.95 over the past decade. While the company's 10-year median is 1.73 vs. the industry median of 1.23, Siamgas And Petrochemicals 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 1.23, based on 757 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. Siamgas And Petrochemicals PCL's current Cyclically Adjusted PB Ratio of 1.02 is 17.1% 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 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 Siamgas And Petrochemicals PCL and its competitors. For the Oil & Gas industry, the median Cyclically Adjusted PB Ratio is 1.23 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siamgas And Petrochemicals PCL's current Cyclically Adjusted PB Ratio is 1.02, which is 41% below median its own 10-year median of 1.73. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siamgas And Petrochemicals PCL stock overvalued right now?
Based on GuruFocus' analysis, Siamgas And Petrochemicals PCL (FRA:4QVA) is currently considered Significantly Overvalued. The stock's GF Value™ is €0.16, compared to a current price of €0.21 — trading 33.8% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.02, which is 41% below median its 10-year median of 1.73 and 17.1% below the Oil & Gas industry median of 1.23. Siamgas And Petrochemicals PCL's overall GF Score™ is 50/100 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 Siamgas And Petrochemicals PCL (FRA:4QVA), the current Cyclically Adjusted PB Ratio is 1.02 as of Aug. 23, 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 Siamgas And Petrochemicals PCL (FRA:4QVA) Overvalued in 2026?

Based on GuruFocus' analysis, Siamgas And Petrochemicals PCL stock appears to be overvalued. The current stock price of €0.21 is trading 33.8% above its estimated GF Value™ of €0.16. GuruFocus considers Siamgas And Petrochemicals PCL to be Significantly Overvalued.

Key valuation signals for FRA:4QVA:

  • Cyclically Adjusted PB Ratio: 1.02 (41% below median its 10-year median of 1.73)
  • GF Value™: €0.16 vs. price of €0.21 (33.8% above fair value)
  • GF Score™: 50/100 with 9 warning signs
  • Industry Position: 17.1% below the Oil & Gas median (#329 of 757)

No single metric tells the full story. See the FRA:4QVA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Siamgas And Petrochemicals PCL Business Description

Industry EnergyOil & Gas
Other Exchanges SGP:Thailand4QVA:Germany
Address Ratchaprarop Road, 553, The Palladium Building, 30th Floor, Makkasan, Ratchathewi, Bangkok, THA, 10400
Siamgas And Petrochemicals PCL is engaged in trading petroleum and petrochemicals, transportation services by land and ship and oil depots, and port services. Its segments include Petroleum & petrochemical products, which is engaged in trading of petroleum for household cooking, industry & transportation businesses, and petrochemical trading; Transportation services, which provides transportation services by land & ship; and Others segment, which is into Cylinder manufacturing, holding business and oil depots & port services. Its operations are carried out in Thailand, and Overseas. The company generates the majority of its revenue from the overseas market.
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Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€0.21
Price
€0.16
GF Value