RTLLF (Rational AG) Book Value per Share: $101.66 (As of Mar. 2026)


RTLLF Rational AG RTLLF
95 GF Score
Price $734.06
GF Value $873.75
Valuation Modestly Undervalued
! 1 Warning Sign
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What is Rational AG Book Value per Share?

Rational AG RTLLF 95 Book Value per Share is $101.66 as of Mar. 2026. GuruFocus rates RTLLF with a GF Score™ of 95/100 and a GF Value™ of $873.75 (Modestly Undervalued). The stock has 1 warning sign investors should review.

Rational AG's book value per share for the quarter that ended in Mar. 2026 was $101.66.

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 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 Rational AG was 22.90% per year. The lowest was 4.40% per year. And the median was 10.60% per year.

Rational AG's current price is $734.0604. Its book value per share for the quarter that ended in Mar. 2026 was $101.66. Hence, today's PB Ratio of Rational AG is 7.22.

During the past 13 years, the highest P/B Ratio of Rational AG was 21.23. The lowest was 7.09. And the median was 12.97.

Good Sign:

Rational AG stock PB Ratio (=7.57) is close to 10-year low of 7.09.


Rational AG  (OTCPK:RTLLF) 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.


Rational AG Book Value per Share Related Terms


Rational AG Book Value per Share Historical Data

* Premium members only.

The historical data trend for Rational AG'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.

Rational AG Book Value per Share Chart

Rational AG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Book Value per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 59.96 65.24 72.97 78.92 96.89

Rational AG Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Book Value per Share 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 86.92 81.94 89.88 96.89 101.66

RTLLF vs GEV, ETN, PH: Book Value per Share Comparison

For the Specialty Industrial Machinery subindustry, Rational AG'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.


Rational AG PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Rational AG's PB Ratio distribution charts can be found below:

* The bar in red indicates where Rational AG's PB Ratio falls into.


RTLLF
95GF Score
Rational AG RTLLF
Book Value per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Rational AG Book Value per Share Calculation

Rational AG's Book Value Per Share for the fiscal year that ended in Dec. 2025 is calculated as:

Book Value Per Share=(Total Stockholders Equity-Preferred Stock)/Shares Outstanding (EOP)
=(1,102-0)/11
=96.89

Rational AG's Book Value Per Share for the quarter that ended in Mar. 2026 is calculated as:

Book Value Per Share=(Total Stockholders Equity-Preferred Stock)/Shares Outstanding (EOP)
=(1,156-0)/11
=101.66

* 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.

Theoretically it is what the shareholders will receive if the company is liquidated. Total Stockholders Equity is a balance sheet item and equal to Total Assets less Total Liabilities of the company.

Book value may include intangible items which may come from the company's past acquisitions. Book value less intangibles is called Tangible Book.

Frequently Asked Questions Learn more about Book Value per Share →
What does a Book Value per Share of $101.66 mean?
Rational AG (RTLLF) has a Book Value per Share of $101.66 as of Mar. 2026. Book value per share gives the per-share value of a company's stockholder equity. View historical data on Rational AG and its competitors.
Is Rational AG's Book Value per Share too high?
Rational AG's current Book Value per Share is $101.66. Overall, Rational AG has a GF Score™ of 95/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Rational AG's Book Value per Share compare to GEV and ETN?
Rational AG's Book Value per Share of $101.66 can be compared against companies in the Industrial Products 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 Industrial Products company?
A good Book Value per Share depends on the Industrial Products 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 Rational AG and its competitors. Rational AG's current Book Value per Share is $101.66. 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?
Based on GuruFocus' analysis, Rational AG (RTLLF) is currently considered Modestly Undervalued. The stock's GF Value™ is $873.75, compared to a current price of $734.06 — trading 16% below its estimated fair value. The current Book Value per Share is $101.66. Rational AG's overall GF Score™ is 95/100 with 1 warning sign 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 Rational AG (RTLLF), the current Book Value per Share is $101.66 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 $734.06 is trading 16% below its estimated GF Value™ of $873.75. GuruFocus considers Rational AG to be Modestly Undervalued.

Key valuation signals for RTLLF:

  • Book Value per Share: $101.66
  • GF Value™: $873.75 vs. price of $734.06 (16% below fair value)
  • GF Score™: 95/100 with 1 warning sign

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 AG Business Description

Address Siegfried-Meister-Strasse 1, Landsberg am Lech, BY, DEU, 86899
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.
95GF Score

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Book Value per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$734.06
Price
$873.75
GF Value