RTLLF (Rational AG) GF Value Rank: 10 (As of Jul. 05, 2026) — 43% Above Median


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 GF Value Rank?

Rational AG RTLLF 95 GF Value Rank is 10 as of Jul. 05, 2026, which is 43% above its 10-year median of 7.00. 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 has the GF Value Rank of 10.

GF Value Rank evaluates the exclusive GuruFocus valuation and performance of a stock, rated on a scale from 1 to 10. It is determined by the price-to-GF-Value (P/GF Value) ratio, a proprietary metric calculated based on historical multiples along with an adjustment factor based on a company's past returns and growth and future estimates of the business' performance.

GuruFocus found that for valuation, we cannot simply give stocks a better GF Value rank simply because they have a lower P/GF Value ratio. Backtesting shows that over the long term, the two worst-performing groups are the most expensive group (with the highest P/GF Value ratio) and the least expensive group (with the lowest P/GF Value ratio).

We can understand why the most expensive group underperforms. We were initially puzzled by the underperformance of the least expensive group, but we realized there is a reason why some stocks are super cheap. If they look too undervalued, it is often because the businesses behind them are poor quality. The market realized this and gave them low valuations. In a way, the market is efficient.

After multiple backtesting analyses, we granted the stocks in third-cheapest percentile the highest GF Value rank, as they have performed the best over a full market cycle. Stock performance is actually not as sensitive to valuation as it is to growth and profitability. On average, the companies in the 20%-50% valuation groups have similar performances. Therefore, we should avoid the most expensive and the least expensive stocks. We can be more tolerant of valuation.

A higher score indicates a stock with a relatively low valuation and substantial potential for outperformance. Conversely, a lower score often reflects stocks that are either highly overvalued or deeply undervalued, both of which tend to underperform.

Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.

Rational AG GF Value Rank Related Terms

RTLLF vs GEV, ETN, PH: GF Value Rank Comparison

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

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

* The bar in red indicates where Rational AG's GF Value Rank falls into.


RTLLF
95GF Score
Rational AG RTLLF
GF Value Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about GF Value Rank →
What does a GF Value Rank of 10 mean?
Rational AG (RTLLF) has a GF Value Rank of 10 as of Jul. 05, 2026. GF Value Rank is given based on historical multiples along with past returns, growth and future estimates of the business' performance. View historical data on Rational AG and its competitors. This is 43% above median its historical median of 7.00. Over the past decade, Rational AG's GF Value Rank has ranged from 3.00 to 10.00.
Is Rational AG's GF Value Rank too high?
Rational AG's current GF Value Rank of 10 is 43% above median its 10-year median of 7.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 10.00. 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 GF Value Rank compare to GEV and ETN?
Rational AG's GF Value Rank of 10 can be compared against companies in the Industrial Products industry. Historically, Rational AG's own GF Value Rank has ranged from 3.00 to 10.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Value Rank for an Industrial Products company?
A good GF Value Rank depends on the Industrial Products industry context. However, GF Value Rank 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 GF Value Rank mean?
A high GF Value Rank can signal that a stock is expensive relative to its fundamentals. GF Value Rank is given based on historical multiples along with past returns, growth and future estimates of the business' performance. View historical data on Rational AG and its competitors. Rational AG's current GF Value Rank is 10, which is 43% above median its own 10-year median of 7.00. 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 GF Value Rank is 10, which is 43% above median its 10-year median of 7.00. 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 GF Value Rank calculated?
GF Value Rank is calculated from a company's financial statements. For Rational AG (RTLLF), the current GF Value Rank is 10 as of Jul. 05, 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:

  • GF Value Rank: 10 (43% above median its 10-year median of 7.00)
  • 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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GF Value Rank is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$734.06
Price
$873.75
GF Value