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Rubellite EnergyTSX:RBY -1.35%53 3-Year Book Growth Rate is 8.10% as of Jun. 2026, which is 31% below its 10-year median of 11.70. GuruFocus rates TSX:RBY with a GF Score™ of 53/100 and a GF Value™ of C$3.46 (Modestly Overvalued). The stock has 5 warning signs investors should review. Among 915 Oil & Gas companies, Rubellite Energy ranks better than 68.09% on this metric.
During the past 12 months, Rubellite Energy's average Book Value per Share Growth Rate was 7.70% per year.
During the past 3 years, the average Book Value per Share Growth Rate was 8.10% 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 average Book Value per Share growth rate.
During the past 5 years, the highest 3-Year average Book Value per Share Growth Rate of Rubellite Energy was 15.30% per year. The lowest was 8.10% per year. And the median was 11.70% per year.
Rubellite Energy (TSX:RBY) 3-Year Book Growth Rate Explanation
Book Value per Share is the ratio of equity available to common shareholders divided by the shares outstanding. Book value per share effectively indicates a firm's net asset value on a per-share basis. It can be used by investors to gauge whether a stock price is undervalued by comparing it to the firm's market value per share. Theoretically, it is what the shareholders will receive if the company is liquidated.
Rubellite Energy 3-Year Book Growth Rate Related Terms
TSX:RBY vs COP, EOG, OXY: 3-Year Book Growth Rate Comparison
For the Oil & Gas E&P subindustry, Rubellite Energy's 3-Year Book Growth Rate, along with its competitors' market caps and 3-Year Book Growth Rate 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.
Rubellite Energy 3-Year Book Growth Rate vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Rubellite Energy's 3-Year Book Growth Rate distribution charts can be found below:
* The bar in red indicates where Rubellite Energy's 3-Year Book Growth Rate falls into.
Rubellite Energy 3-Year Book Growth Rate Calculation
This is the 3-year average growth rate of Book Value per Share. The growth rate is calculated using exponential compounding based on the latest four year annual data.
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 average Book Value per Share growth rate.
What does a 3-Year Book Growth Rate of 8.10% mean?
Rubellite Energy (TSX:RBY) has a 3-Year Book Growth Rate of 8.10% as of Jun. 2026. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for Rubellite Energy and its competitors. This is 31% below median its historical median of 11.70. Over the past decade, Rubellite Energy's 3-Year Book Growth Rate has ranged from 8.10 to 15.30. According to the industry distribution chart, Rubellite Energy ranks #292 out of 915 companies in the Oil & Gas industry, placing it in the top 31.9%.
Is Rubellite Energy's 3-Year Book Growth Rate too high?
Rubellite Energy's current 3-Year Book Growth Rate of 8.10% is 31% below median its 10-year median of 11.70. Over the past 10 years, this metric has ranged from a low of 8.10 to a high of 15.30. The Oil & Gas industry median 3-Year Book Growth Rate is 3.00. Rubellite Energy's value of 8.10% is 170% above this industry median. Based on the distribution chart, Rubellite Energy ranks #292 out of 915 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Rubellite Energy has a GF Score™ of 53/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Rubellite Energy's 3-Year Book Growth Rate compare to COP and EOG?
According to the Oil & Gas industry distribution chart, Rubellite Energy ranks #292 out of 915 companies for 3-Year Book Growth Rate. This puts Rubellite Energy in the upper half of its industry. The industry median 3-Year Book Growth Rate is 3.00. Rubellite Energy's value of 8.10% is 170% above this benchmark. Historically, Rubellite Energy's own 3-Year Book Growth Rate has ranged from 8.10 to 15.30 over the past decade. While the company's 10-year median is 11.70 vs. the industry median of 3.00, Rubellite Energy 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 3-Year Book Growth Rate for an Oil & Gas company?
The median 3-Year Book Growth Rate among Oil & Gas companies is 3.00, based on 915 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year Book Growth Rate significantly above this median, while those in the bottom quartile fall well below. However, 3-Year Book Growth Rate should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Rubellite Energy's current 3-Year Book Growth Rate of 8.10% is 170% 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 3-Year Book Growth Rate mean?
A high 3-Year Book Growth Rate can signal that a stock is expensive relative to its fundamentals. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for Rubellite Energy and its competitors. For the Oil & Gas industry, the median 3-Year Book Growth Rate is 3.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rubellite Energy's current 3-Year Book Growth Rate is 8.10%, which is 31% below median its own 10-year median of 11.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rubellite Energy stock overvalued right now?
Based on GuruFocus' analysis, Rubellite Energy (TSX:RBY) is currently considered Modestly Overvalued. The stock's GF Value™ is C$3.46, compared to a current price of C$4.40 — trading 27.2% above its estimated fair value. The current 3-Year Book Growth Rate is 8.10%, which is 31% below median its 10-year median of 11.70 and 170% above the Oil & Gas industry median of 3.00. Rubellite Energy's overall GF Score™ is 53/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Book Growth Rate calculated?
3-Year Book Growth Rate is calculated from a company's financial statements. For Rubellite Energy (TSX:RBY), the current 3-Year Book Growth Rate is 8.10% as of Jun. 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 Rubellite Energy (TSX:RBY) Overvalued in 2026?
Based on GuruFocus' analysis, Rubellite Energy stock appears to be overvalued.
The current stock price of C$4.40 is trading 27.2% above its estimated GF Value™ of C$3.46.
GuruFocus considers Rubellite Energy to be Modestly Overvalued.
Key valuation signals for TSX:RBY:
3-Year Book Growth Rate: 8.10% (31% below median its 10-year median of 11.70)
GF Value™: C$3.46 vs. price of C$4.40 (27.2% above fair value)
Industry Position: 170% above the Oil & Gas median (#292 of 915)
No single metric tells the full story. See the TSX:RBY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rubellite Energy Corp is an oil and natural gas exploration and production company. The company is focused on Clearwater oil exploration and development, utilizing multi-lateral horizontal drilling technology. The company is also engaged in the production of conventional heavy crude oil from the Clearwater Formation in Eastern Alberta. The Clearwater is a high-rate-of-return play with compelling economics at current forward market prices for Western Canadian Select crude oil.
53GF Score
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