RTLLF (Rational AG) PEG Ratio: 1.21 (As of Jun. 24, 2026) — 72% Below Median


RTLLF Rational AG RTLLF
93 GF Score
Price $746.43
GF Value $893.79
Valuation Modestly Undervalued
! 1 Warning Sign
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What is Rational AG PEG Ratio?

Rational AG RTLLF +1.65% 93 PEG Ratio is 1.21 as of Jun. 24, 2026, which is 72% below its 10-year median of 4.32. GuruFocus rates RTLLF with a GF Score™ of 93/100 and a GF Value™ of $893.79 (Modestly Undervalued). The stock has 1 warning sign investors should review. Among 1,287 Industrial Products companies, Rational AG ranks better than 64.26% on this metric.

PE Ratio without NRI / 5-Year EBITDA Growth Rate*

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The growth rate we use is the 5-Year EBITDA growth rate. As of today, Rational AG's PE Ratio without NRI is 28.45. Rational AG's 5-Year EBITDA growth rate is 23.50%. Therefore, Rational AG's PEG Ratio for today is 1.21.

* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.


The historical rank and industry rank for Rational AG's PEG Ratio or its related term are showing as below:

RTLLF' s PEG Ratio Range Over the Past 10 Years
Min: 0.93   Med: 4.32   Max: 53.07
Current: 1.21


During the past 13 years, Rational AG's highest PEG Ratio was 53.07. The lowest was 0.93. And the median was 4.32.


RTLLF's PEG Ratio is ranked better than
64.26% of 1287 companies
in the Industrial Products industry
Industry Median: 1.89 vs RTLLF: 1.21

Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.


Rational AG  (OTCPK:RTLLF) PEG Ratio Explanation

To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.


Rational AG PEG Ratio Related Terms


Rational AG PEG Ratio Historical Data

* Premium members only.

The historical data trend for Rational AG's PEG 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.

Rational AG PEG Ratio Chart

Rational AG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PEG Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 3.92 1.61 1.05

Rational AG Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
PEG 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 1.29 1.08 0.97 1.05 1.13

RTLLF vs GEV, ETN, PH: PEG Ratio Comparison

For the Specialty Industrial Machinery subindustry, Rational AG's PEG Ratio, along with its competitors' market caps and PEG 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 PEG Ratio vs Industrial Products Industry

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

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


RTLLF
93GF Score
Rational AG RTLLF
PEG Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Rational AG PEG Ratio Calculation

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The ratio we use is the 5-Year EBITDA growth rate.

Rational AG's PEG Ratio for today is calculated as

PEG Ratio=PE Ratio without NRI/5-Year EBITDA Growth Rate*
=28.453794838562/23.50
=1.21

* 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.

* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.

Frequently Asked Questions Learn more about PEG Ratio →
What does a PEG Ratio of 1.21 mean?
Rational AG (RTLLF) has a PEG Ratio of 1.21 as of Jun. 24, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Rational AG and its competitors. This is 72% below median its historical median of 4.32. Over the past decade, Rational AG's PEG Ratio has ranged from 0.93 to 53.07. According to the industry distribution chart, Rational AG ranks #460 out of 1287 companies in the Industrial Products industry, placing it in the top 35.7%.
Is Rational AG's PEG Ratio too high?
Rational AG's current PEG Ratio of 1.21 is 72% below median its 10-year median of 4.32. Over the past 10 years, this metric has ranged from a low of 0.93 to a high of 53.07. The Industrial Products industry median PEG Ratio is 1.89. Rational AG's value of 1.21 is 36% below this industry median. Based on the distribution chart, Rational AG ranks #460 out of 1287 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Rational AG has a GF Score™ of 93/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Rational AG's PEG Ratio compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Rational AG ranks #460 out of 1287 companies for PEG Ratio. This puts Rational AG in the upper half of its industry. The industry median PEG Ratio is 1.89. Rational AG's value of 1.21 is 36% below this benchmark. Historically, Rational AG's own PEG Ratio has ranged from 0.93 to 53.07 over the past decade. While the company's 10-year median is 4.32 vs. the industry median of 1.89, Rational AG has consistently been below 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 PEG Ratio for an Industrial Products company?
The median PEG Ratio among Industrial Products companies is 1.89, based on 1,287 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Rational AG's current PEG Ratio of 1.21 is 36% below 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 PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Rational AG and its competitors. For the Industrial Products industry, the median PEG Ratio is 1.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rational AG's current PEG Ratio is 1.21, which is 72% below median its own 10-year median of 4.32. 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 $893.79, compared to a current price of $746.43 — trading 16.5% below its estimated fair value. The current PEG Ratio is 1.21, which is 72% below median its 10-year median of 4.32 and 36% below the Industrial Products industry median of 1.89. Rational AG's overall GF Score™ is 93/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For Rational AG (RTLLF), the current PEG Ratio is 1.21 as of Jun. 24, 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 $746.43 is trading 16.5% below its estimated GF Value™ of $893.79. GuruFocus considers Rational AG to be Modestly Undervalued.

Key valuation signals for RTLLF:

  • PEG Ratio: 1.21 (72% below median its 10-year median of 4.32)
  • GF Value™: $893.79 vs. price of $746.43 (16.5% below fair value)
  • GF Score™: 93/100 with 1 warning sign
  • Industry Position: 36% below the Industrial Products median (#460 of 1287)

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.
93GF Score

Get the complete analysis for RTLLF

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

$746.43
Price
$893.79
GF Value