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Lennox InternationalLII -0.78%94 Shiller PE Ratio is 25.42 as of Aug. 22, 2026, which is 46% below its 10-year median of 47.16. GuruFocus rates LII with a GF Score™ of 94/100 and a GF Value™ of $548.66 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 1,040 Construction companies, Lennox International ranks worse than 67.79% on this metric.
The historical rank and industry rank for Lennox International's Shiller PE Ratio or its related term are showing as below:
LII'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 23.36 Med: 47.16 Max: 62.51
Current: 25.42
During the past years, Lennox International's highest Shiller PE Ratio was 62.51. The lowest was 23.36. And the median was 47.16.
LII's Shiller PE Ratio is ranked worse than 67.79% of 1040
companies
in the Construction industry
Industry Median: 16.675
vs LII: 25.42
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
Lennox International's adjusted earnings per share data for the three months ended in Jun. 2026 was $7.720. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $15.85 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Lennox International (NYSE:LII) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
Lennox International Shiller PE Ratio Related Terms
Lennox International Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Lennox International's Shiller PE 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.
LII vs MAIR, MAS, CSL: Shiller PE Ratio Comparison
For the Building Products & Equipment subindustry, Lennox International's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.
Lennox International Shiller PE Ratio vs Construction Industry
For the Construction industry and Industrials sector, Lennox International's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Lennox International's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
* 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.
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
Lennox International (LII) has a Shiller PE Ratio of 25.42 as of Aug. 22, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Lennox International and its competitors. This is 46% below median its historical median of 47.16. Over the past decade, Lennox International's Shiller PE Ratio has ranged from 23.36 to 62.51. According to the industry distribution chart, Lennox International ranks #705 out of 1040 companies in the Construction industry, placing it in the top 67.8%.
Is Lennox International's Shiller PE Ratio too high?
Lennox International's current Shiller PE Ratio of 25.42 is 46% below median its 10-year median of 47.16. Over the past 10 years, this metric has ranged from a low of 23.36 to a high of 62.51. The Construction industry median Shiller PE Ratio is 16.68. Lennox International's value of 25.42 is 52.4% above this industry median. Based on the distribution chart, Lennox International ranks #705 out of 1040 companies in the Construction industry, which is below the industry midpoint. Overall, Lennox International has a GF Score™ of 94/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Lennox International's Shiller PE Ratio compare to MAIR and MAS?
According to the Construction industry distribution chart, Lennox International ranks #705 out of 1040 companies for Shiller PE Ratio. This places Lennox International in the lower half of its industry. The industry median Shiller PE Ratio is 16.68. Lennox International's value of 25.42 is 52.4% above this benchmark. Historically, Lennox International's own Shiller PE Ratio has ranged from 23.36 to 62.51 over the past decade. While the company's 10-year median is 47.16 vs. the industry median of 16.68, Lennox International 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 Shiller PE Ratio for a Construction company?
The median Shiller PE Ratio among Construction companies is 16.68, based on 1,040 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Lennox International's current Shiller PE Ratio of 25.42 is 52.4% 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Lennox International and its competitors. For the Construction industry, the median Shiller PE Ratio is 16.68 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lennox International's current Shiller PE Ratio is 25.42, which is 46% below median its own 10-year median of 47.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lennox International stock overvalued right now?
Based on GuruFocus' analysis, Lennox International (LII) is currently considered Modestly Undervalued. The stock's GF Value™ is $548.66, compared to a current price of $402.87 — trading 26.6% below its estimated fair value. The current Shiller PE Ratio is 25.42, which is 46% below median its 10-year median of 47.16 and 52.4% above the Construction industry median of 16.68. Lennox International's overall GF Score™ is 94/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Lennox International (LII), the current Shiller PE Ratio is 25.42 as of Aug. 22, 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 Lennox International (LII) Overvalued in 2026?
Based on GuruFocus' analysis, Lennox International stock appears to be undervalued.
The current stock price of $402.87 is trading 26.6% below its estimated GF Value™ of $548.66.
GuruFocus considers Lennox International to be Modestly Undervalued.
Key valuation signals for LII:
Shiller PE Ratio: 25.42 (46% below median its 10-year median of 47.16)
GF Value™: $548.66 vs. price of $402.87 (26.6% below fair value)
Industry Position: 52.4% above the Construction median (#705 of 1040)
No single metric tells the full story. See the LII stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Lennox International manufacturers and distributes heating, ventilating, air conditioning, and refrigeration products for the North American replacement (75% of sales) and new construction (25% of sales) markets. Residential HVAC (home comfort solutions) accounts for 67% of sales and commercial HVAC (building climate solutions) accounts for the remaining 33% of sales. Lennox's commercial exposure is what its peers refer to as residential and light commercial, and lacks the scale and complexity of what is referred to as an applied solution. The company goes to market with multiple brands, but Lennox is its flagship HVAC brand.
94GF Score
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