Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
PRIO's book value per share for the quarter that ended in Mar. 2026 was $6.32.
During the past 12 months, PRIO's average Book Value Per Share Growth Rate was 1.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 39.70% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 49.90% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 44.80% 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 book value growth rate using book value per share data.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of PRIO was 90.40% per year. The lowest was -52.30% per year. And the median was 38.00% per year.
PRIO's current price is $11.24. Its book value per share for the quarter that ended in Mar. 2026 was $6.32. Hence, today's PB Ratio of PRIO is 1.78.
During the past 13 years, the highest P/B Ratio of PRIO was 4.39. The lowest was 0.21. And the median was 2.00.
PRIO (OTCPK:PTRRY) Book Value per Share Explanation
Usually a company's book value and Tangible Book per Share may not reflect its true value. The assets may be carried on the balance sheets at the original cost minus depreciation. This may underestimate the true economic values of the assets. It also may over-estimate their true economic value because the assets can become obsolete.
For financial companies such as banks and insurance companies, their assets may be reported in current market value of the assets owned. Book values of financial companies are more accurate indicator of the economic value of the company.
PRIO Book Value per Share Related Terms
PRIO Book Value per Share Historical Data
* Premium members only.
The historical data trend for PRIO's Book Value 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.
PTRRY vs COP, EOG, FANG: Book Value per Share Comparison
For the Oil & Gas E&P subindustry, PRIO's PB Ratio, along with its competitors' market caps and 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.
PRIO PB Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, PRIO's PB Ratio distribution charts can be found below:
* The bar in red indicates where PRIO's PB Ratio falls into.
* 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.
PRIO (PTRRY) has a Book Value per Share of $6.32 as of Mar. 2026. Book value per share gives the per-share value of a company's stockholder equity. View historical data on PRIO and its competitors.
Is PRIO's Book Value per Share too high?
PRIO's current Book Value per Share is $6.32. Overall, PRIO has a GF Score™ of 89/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does PRIO's Book Value per Share compare to COP and EOG?
PRIO's Book Value per Share of $6.32 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 Book Value per Share for an Oil & Gas company?
A good Book Value per Share depends on the Oil & Gas industry context. However, Book Value 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 Book Value per Share mean?
A high Book Value per Share can signal that a stock is expensive relative to its fundamentals. Book value per share gives the per-share value of a company's stockholder equity. View historical data on PRIO and its competitors. PRIO's current Book Value per Share is $6.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PRIO stock overvalued right now?
Based on GuruFocus' analysis, PRIO (PTRRY) is currently considered Modestly Undervalued. The stock's GF Value™ is $14.39, compared to a current price of $11.24 — trading 21.9% below its estimated fair value. The current Book Value per Share is $6.32. PRIO's overall GF Score™ is 89/100 with 10 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Book Value per Share calculated?
Book Value per Share is calculated from a company's financial statements. For PRIO (PTRRY), the current Book Value per Share is $6.32 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 PRIO (PTRRY) Overvalued in 2026?
Based on GuruFocus' analysis, PRIO stock appears to be undervalued.
The current stock price of $11.24 is trading 21.9% below its estimated GF Value™ of $14.39.
GuruFocus considers PRIO to be Modestly Undervalued.
Key valuation signals for PTRRY:
Book Value per Share: $6.32
GF Value™: $14.39 vs. price of $11.24 (21.9% below fair value)
No single metric tells the full story. See the PTRRY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
PRIO SA is engaged in the exploration and production of oil and gas in Brazil and abroad. The company is engaged in oil and gas exploration and production in Brazil and overseas. Its exploration assets comprise Polvo field, Tubarao Martelo field, Campo de Frade, East Albacora field, and Wahoo block.
89GF Score
Get the complete analysis for PTRRY
Book Value per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
PTRRY has been successfully added to your 
