Vietnam National Petroleum Group (STC:PLX) Cyclically Adjusted PB Ratio: 1.66 (As of Jul. 03, 2026) — 28% Below Median


STC:PLX Vietnam National Petroleum Group STC:PLX
92 GF Score
Price ₫37,200.00
GF Value ₫42,487.30
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Vietnam National Petroleum Group Cyclically Adjusted PB Ratio?

Vietnam National Petroleum Group STC:PLX +0.68% 92 Cyclically Adjusted PB Ratio is 1.66 as of Jul. 03, 2026, which is 28% below its 10-year median of 2.32. GuruFocus rates STC:PLX with a GF Score™ of 92/100 and a GF Value™ of ₫42,487.30 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 773 Oil & Gas companies, Vietnam National Petroleum Group ranks worse than 63.78% on this metric.

As of today (2026-07-03), Vietnam National Petroleum Group's current share price is ₫37200.00. Vietnam National Petroleum Group's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec25 was ₫22,440.31. Vietnam National Petroleum Group's Cyclically Adjusted PB Ratio for today is 1.66.

The historical rank and industry rank for Vietnam National Petroleum Group's Cyclically Adjusted PB Ratio or its related term are showing as below:

STC:PLX' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.57   Med: 2.32   Max: 2.76
Current: 1.64

During the past 10 years, Vietnam National Petroleum Group's highest Cyclically Adjusted PB Ratio was 2.76. The lowest was 1.57. And the median was 2.32.

STC:PLX's Cyclically Adjusted PB Ratio is ranked worse than
63.78% of 773 companies
in the Oil & Gas industry
Industry Median: 1.17 vs STC:PLX: 1.64

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.

Vietnam National Petroleum Group's adjusted book value per share data of for the fiscal year that ended in Dec25 was ₫20,625.436. 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 ₫22,440.31 for the trailing ten years ended in Dec25.

Shiller PE for Stocks: The True Measure of Stock Valuation


Vietnam National Petroleum Group  (STC:PLX) 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.


Vietnam National Petroleum Group Cyclically Adjusted PB Ratio Related Terms


Vietnam National Petroleum Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Vietnam National Petroleum Group'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.

Vietnam National Petroleum Group Cyclically Adjusted PB Ratio Chart

Vietnam National Petroleum Group 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 0.00 0.00 0.00 0.00 1.57

Vietnam National Petroleum Group 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 0.00 0.00 0.00 1.57 0.00

STC:PLX vs VLO, MPC, PSX: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas Refining & Marketing subindustry, Vietnam National Petroleum Group'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.


Vietnam National Petroleum Group Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

* The bar in red indicates where Vietnam National Petroleum Group's Cyclically Adjusted PB Ratio falls into.


STC:PLX
92GF Score
Vietnam National Petroleum Group STC:PLX
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Vietnam National Petroleum Group 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.

Vietnam National Petroleum Group's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=37200.00/22440.31
=1.66

* 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.

Vietnam National Petroleum Group's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec25 is calculated as:

For example, Vietnam National Petroleum Group's adjusted Book Value per Share data for the fiscal year that ended in Dec25 was:

Adj_Book=Book Value per Share/CPI of Dec25 (Change)*Current CPI (Dec25)
=20625.436/324.0540*324.0540
=20,625.436

Current CPI (Dec25) = 324.0540.

Vietnam National Petroleum Group Annual Data

Book Value per Share CPI Adj_Book
201612 18,199.956 241.432 24,428.280
201712 17,827.734 246.524 23,434.426
201812 17,556.482 251.233 22,645.306
201912 19,359.461 256.974 24,413.018
202012 17,604.882 260.474 21,902.119
202112 20,055.616 278.802 23,310.818
202212 19,276.922 296.797 21,047.260
202312 20,415.315 306.746 21,567.240
202412 20,480.896 315.605 21,029.186
202512 20,625.436 324.054 20,625.436

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 1.66 mean?
Vietnam National Petroleum Group (STC:PLX) has a Cyclically Adjusted PB Ratio of 1.66 as of Jul. 03, 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 Vietnam National Petroleum Group and its competitors. This is 28% below median its historical median of 2.32. Over the past decade, Vietnam National Petroleum Group's Cyclically Adjusted PB Ratio has ranged from 1.57 to 2.76. According to the industry distribution chart, Vietnam National Petroleum Group ranks #493 out of 773 companies in the Oil & Gas industry, placing it in the top 63.8%.
Is Vietnam National Petroleum Group's Cyclically Adjusted PB Ratio too high?
Vietnam National Petroleum Group's current Cyclically Adjusted PB Ratio of 1.66 is 28% below median its 10-year median of 2.32. Over the past 10 years, this metric has ranged from a low of 1.57 to a high of 2.76. The Oil & Gas industry median Cyclically Adjusted PB Ratio is 1.17. Vietnam National Petroleum Group's value of 1.66 is 41.9% above this industry median. Based on the distribution chart, Vietnam National Petroleum Group ranks #493 out of 773 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Vietnam National Petroleum Group has a GF Score™ of 92/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Vietnam National Petroleum Group's Cyclically Adjusted PB Ratio compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Vietnam National Petroleum Group ranks #493 out of 773 companies for Cyclically Adjusted PB Ratio. This places Vietnam National Petroleum Group in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.17. Vietnam National Petroleum Group's value of 1.66 is 41.9% above this benchmark. Historically, Vietnam National Petroleum Group's own Cyclically Adjusted PB Ratio has ranged from 1.57 to 2.76 over the past decade. While the company's 10-year median is 2.32 vs. the industry median of 1.17, Vietnam National Petroleum Group has consistently been above 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 1.17, 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. Vietnam National Petroleum Group's current Cyclically Adjusted PB Ratio of 1.66 is 41.9% above 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 Vietnam National Petroleum Group and its competitors. For the Oil & Gas industry, the median Cyclically Adjusted PB Ratio is 1.17 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Vietnam National Petroleum Group's current Cyclically Adjusted PB Ratio is 1.66, which is 28% below median its own 10-year median of 2.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Vietnam National Petroleum Group stock overvalued right now?
Based on GuruFocus' analysis, Vietnam National Petroleum Group (STC:PLX) is currently considered Modestly Undervalued. The stock's GF Value™ is ₫42,487.30, compared to a current price of ₫37,200.00 — trading 12.4% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.66, which is 28% below median its 10-year median of 2.32 and 41.9% above the Oil & Gas industry median of 1.17. Vietnam National Petroleum Group's overall GF Score™ is 92/100 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 PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Vietnam National Petroleum Group (STC:PLX), the current Cyclically Adjusted PB Ratio is 1.66 as of Jul. 03, 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 Vietnam National Petroleum Group (STC:PLX) Overvalued in 2026?

Based on GuruFocus' analysis, Vietnam National Petroleum Group stock appears to be undervalued. The current stock price of ₫37,200.00 is trading 12.4% below its estimated GF Value™ of ₫42,487.30. GuruFocus considers Vietnam National Petroleum Group to be Modestly Undervalued.

Key valuation signals for STC:PLX:

  • Cyclically Adjusted PB Ratio: 1.66 (28% below median its 10-year median of 2.32)
  • GF Value™: ₫42,487.30 vs. price of ₫37,200.00 (12.4% below fair value)
  • GF Score™: 92/100 with 3 warning signs
  • Industry Position: 41.9% above the Oil & Gas median (#493 of 773)

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


Vietnam National Petroleum Group Business Description

Industry EnergyOil & Gas
Address No. 1, Kham Thien, Kham Thien Ward, Dong Da District, Hanoi, VNM
Vietnam National Petroleum Group is engaged in import, export, and deal in petroleum, refining, and petrochemical products. The firm also invests in fields like engineering, mechanical and oil equipment, insurance, banking, and other commercial activities.
92GF Score

Get the complete analysis for STC:PLX

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

₫37,200.00
Price
₫42,487.30
GF Value