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Rational AGRTLLF +1.26%91 3-Year Book Growth Rate is 10.30% as of Mar. 2026, which is 3% below its 10-year median of 10.60. GuruFocus rates RTLLF with a GF Score™ of 91/100 and a GF Value™ of $898.90. The stock has 1 warning sign investors should review. Among 2,941 Industrial Products companies, Rational AG ranks better than 66.68% on this metric.
During the past 12 months, Rational AG's average Book Value per Share Growth Rate was 9.40% per year.
During the past 3 years, the average Book Value per Share Growth Rate was 10.30% per year.
During the past 5 years, the average Book Value per Share Growth Rate was 12.00% per year.
During the past 10 years, the average Book Value per Share Growth Rate was 10.20% 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 13 years, the highest 3-Year average Book Value per Share Growth Rate of Rational AG was 22.90% per year. The lowest was 4.40% per year. And the median was 10.60% per year.
Rational AG (OTCPK:RTLLF) 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.
Rational AG 3-Year Book Growth Rate Related Terms
RTLLF vs GEV, ETN, PH: 3-Year Book Growth Rate Comparison
For the Specialty Industrial Machinery subindustry, Rational AG'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.
Rational AG 3-Year Book Growth Rate vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Rational AG's 3-Year Book Growth Rate distribution charts can be found below:
* The bar in red indicates where Rational AG's 3-Year Book Growth Rate falls into.
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 10.30% mean?
Rational AG (RTLLF) has a 3-Year Book Growth Rate of 10.30% as of Mar. 2026. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for Rational AG and its competitors. This is near median its historical median of 10.60. Over the past decade, Rational AG's 3-Year Book Growth Rate has ranged from 4.40 to 22.90. According to the industry distribution chart, Rational AG ranks #980 out of 2941 companies in the Industrial Products industry, placing it in the top 33.3%.
Is Rational AG's 3-Year Book Growth Rate too high?
Rational AG's current 3-Year Book Growth Rate of 10.30% is near median its 10-year median of 10.60. Over the past 10 years, this metric has ranged from a low of 4.40 to a high of 22.90. The Industrial Products industry median 3-Year Book Growth Rate is 6.00. Rational AG's value of 10.30% is 71.7% above this industry median. Based on the distribution chart, Rational AG ranks #980 out of 2941 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Rational AG has a GF Score™ of 91/100, reflecting its overall financial health beyond just this single metric.
How does Rational AG's 3-Year Book Growth Rate compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Rational AG ranks #980 out of 2941 companies for 3-Year Book Growth Rate. This puts Rational AG in the upper half of its industry. The industry median 3-Year Book Growth Rate is 6.00. Rational AG's value of 10.30% is 71.7% above this benchmark. Historically, Rational AG's own 3-Year Book Growth Rate has ranged from 4.40 to 22.90 over the past decade. While the company's 10-year median is 10.60 vs. the industry median of 6.00, Rational AG 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 Industrial Products company?
The median 3-Year Book Growth Rate among Industrial Products companies is 6.00, based on 2,941 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. Rational AG's current 3-Year Book Growth Rate of 10.30% is 71.7% 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 Rational AG and its competitors. For the Industrial Products industry, the median 3-Year Book Growth Rate is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rational AG's current 3-Year Book Growth Rate is 10.30%, which is near median its own 10-year median of 10.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rational AG stock overvalued right now?
Rational AG (RTLLF) has a current 3-Year Book Growth Rate of 10.30%. The stock's GF Value™ is $898.90, compared to a current price of $805.76 — trading 10.4% below its estimated fair value. The current 3-Year Book Growth Rate is 10.30%, which is near median its 10-year median of 10.60 and 71.7% above the Industrial Products industry median of 6.00. Rational AG's overall GF Score™ is 91/100 with 1 warning sign 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 Rational AG (RTLLF), the current 3-Year Book Growth Rate is 10.30% 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 Rational AG (RTLLF) Overvalued in 2026?
Based on GuruFocus' analysis, Rational AG stock appears to be undervalued.
The current stock price of $805.76 is trading 10.4% below its estimated GF Value™ of $898.90.
Key valuation signals for RTLLF:
3-Year Book Growth Rate: 10.30% (near median its 10-year median of 10.60)
GF Value™: $898.90 vs. price of $805.76 (10.4% below fair value)
Industry Position: 71.7% above the Industrial Products median (#980 of 2941)
No single metric tells the full story. See the RTLLF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rational specializes in manufacturing automated multifunctional ovens for professional kitchens that replace conventional cooking appliances such as a stove, grill, and oven. Rational has produced over 1 million combi-steamers since its first combi-steamer in 1976, which are used to prepare 160 million food dishes daily. Approximately 72% of group revenue is generated from the sale of cooking appliances, mostly the iCombi Pro that was launched in May 2020 and its predecessor product. Rational has a presence in over 120 countries. The majority of revenue is earned in Europe, followed by North America and Asia.
91GF Score
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