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.
ROIC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROC %. Lennox International's annualized return on invested capital (ROIC %) for the quarter that ended in Mar. 2026 was 15.86%.
As of today (2026-07-21), Lennox International's WACC % is 10.25%. Lennox International's ROIC % is 30.05% (calculated using TTM income statement data).
Lennox International generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.
Lennox International (MIL:1LII) ROIC % Explanation
ROIC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.
There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.
Why is ROIC % important?
Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, Lennox International's WACC % is 10.25%. Lennox International's ROIC % is 30.05% (calculated using TTM income statement data).
Lennox International generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.
Be Aware
Like ROE % and ROA %, ROIC % is calculated with only 12 months of data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
* 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.
For the Building Products & Equipment subindustry, Lennox International's ROIC %, along with its competitors' market caps and ROIC % 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 ROIC % vs Construction Industry
For the Construction industry and Industrials sector, Lennox International's ROIC % distribution charts can be found below:
* The bar in red indicates where Lennox International's ROIC % falls into.
Note:
The Operating Income data used here is four times the quarterly (Mar. 2026) data.
The tax rate is limited to between 0% and 100%.
* 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.
Lennox International (MIL:1LII) has a ROIC % of 15.86% as of Mar. 2026. Return on invested capital is the ratio of current-period net income to average two-period invested capital. View historical data on Lennox International and its competitors.
Is Lennox International's ROIC % too high?
Lennox International's current ROIC % is 15.86%. The Construction industry median ROIC % is 4.67. Lennox International's value of 15.86% is 239.6% above this industry median. Overall, Lennox International has a GF Score™ of 93/100, reflecting its overall financial health beyond just this single metric.
How does Lennox International's ROIC % compare to MAIR and MAS?
Lennox International's ROIC % of 15.86% can be compared against companies in the Construction industry. The industry median ROIC % is 4.67. Lennox International's value of 15.86% is 239.6% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROIC % for a Construction company?
The median ROIC % among Construction companies is 4.67, based on 1,758 companies in the industry. Companies in the top quartile (top 25%) have a ROIC % significantly above this median, while those in the bottom quartile fall well below. However, ROIC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Lennox International's current ROIC % of 15.86% is 239.6% 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 ROIC % mean?
A high ROIC % can signal that a stock is expensive relative to its fundamentals. Return on invested capital is the ratio of current-period net income to average two-period invested capital. View historical data on Lennox International and its competitors. For the Construction industry, the median ROIC % is 4.67 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lennox International's current ROIC % is 15.86%. 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?
Lennox International (MIL:1LII) has a current ROIC % of 15.86%. The stock's GF Value™ is €501.24, compared to a current price of €493.20 — trading 1.6% below its estimated fair value. The current ROIC % is 15.86% and 239.6% above the Construction industry median of 4.67. Lennox International's overall GF Score™ is 93/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROIC % calculated?
ROIC % is calculated from a company's financial statements. For Lennox International (MIL:1LII), the current ROIC % is 15.86% 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 Lennox International (MIL:1LII) Overvalued in 2026?
Based on GuruFocus' analysis, Lennox International stock appears to be undervalued.
The current stock price of €493.20 is trading 1.6% below its estimated GF Value™ of €501.24.
Key valuation signals for MIL:1LII:
ROIC %: 15.86%
GF Value™: €501.24 vs. price of €493.20 (1.6% below fair value)
Industry Position: 239.6% above the Construction median
No single metric tells the full story. See the MIL:1LII 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.
93GF Score
Get the complete analysis for MIL:1LII
ROIC % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
MIL:1LII has been successfully added to your 
