Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
6-Month Price Index is an intermediate-term momentum that shows the price change relative to 6-month ago. It’s calculated by current share price divided by share price 6-months ago. As of today (2026-07-26), Rational AG's 6-Month Price Index is 0.93.
Rational AG (OTCPK:RTLLF) 6-Month Price Index Explanation
Price Index (PI) also called momentum. Strategies involving Price Index are also known as momentum strategies as they allow investors to profit from a company’s stock price. 6-Month Price Index is an intermediate-term momentum that shows the price change relative to 6-month ago.
The investment strategy for momentum investors is to buy winners and sell losers. That is, buy stocks that performed well and sell stocks that performed poorly in the past.
Rational AG 6-Month Price Index Related Terms
RTLLF vs GEV, ETN, PH: 6-Month Price Index Comparison
For the Specialty Industrial Machinery subindustry, Rational AG's 6-Month Price Index, along with its competitors' market caps and 6-Month Price Index 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 (OTCPK:RTLLF) 6-Month Price Index Calculation
6-Month Price Index is calculated as following:
6-Month Price Index
=
Current Share Price
/
Share Price 6-Months Ago
* 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 (RTLLF) has a 6-Month Price Index of 0.93 as of Jul. 26, 2026. 6-Month Price Index is an intermediate-term momentum that shows the price change relative to 6-month ago. View historical data on Rational AG and its competitors.
Is Rational AG's 6-Month Price Index too high?
Rational AG's current 6-Month Price Index is 0.93. Overall, Rational AG has a GF Score™ of 93/100, reflecting its overall financial health beyond just this single metric.
How does Rational AG's 6-Month Price Index compare to GEV and ETN?
Rational AG's 6-Month Price Index of 0.93 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 6-Month Price Index for an Industrial Products company?
A good 6-Month Price Index depends on the Industrial Products industry context. However, 6-Month Price Index 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 6-Month Price Index mean?
A high 6-Month Price Index can signal that a stock is expensive relative to its fundamentals. 6-Month Price Index is an intermediate-term momentum that shows the price change relative to 6-month ago. View historical data on Rational AG and its competitors. Rational AG's current 6-Month Price Index is 0.93. 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 6-Month Price Index of 0.93. The stock's GF Value™ is $898.90, compared to a current price of $734.06 — trading 18.3% below its estimated fair value. The current 6-Month Price Index is 0.93. 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 6-Month Price Index calculated?
6-Month Price Index is calculated from a company's financial statements. For Rational AG (RTLLF), the current 6-Month Price Index is 0.93 as of Jul. 26, 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 18.3% below its estimated GF Value™ of $898.90.
Key valuation signals for RTLLF:
6-Month Price Index: 0.93
GF Value™: $898.90 vs. price of $734.06 (18.3% below fair value)
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.
93GF Score
Get the complete analysis for RTLLF
6-Month Price Index is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
RTLLF has been successfully added to your 
