Lennox International Inc. (LII) Stock

Lennox International Inc. (LII) is a Industrials stock trading at $537.60 (as of 2026-07-09), with a market capitalization of $18.71B and a trailing P/E of 23.3. Figures are sourced from first-party U.S. SEC EDGAR filings and market data.

Lennox International Inc., together with its subsidiaries, designs, manufactures, and markets a range of products for the heating, ventilation, air conditioning, and refrigeration markets in the United States, Canada, and internationally. It operates through three segments: Residential Heating & Cooling, Commercial Heating & Cooling, and Refrigeration. The Residential Heating & Cooling segment provides furnaces, air conditioners, heat pumps, packaged heating and cooling systems, indoor air quality equipment and accessories, comfort control products, and replacement parts and supplies for residential replacement and new construction markets. The Commercial Heating & Cooling segment offers unitary heating and air conditioning equipment, applied systems, controls, installation and service of commercial heating and cooling equipment, and variable refrigerant flow commercial products for light commercial markets. The Refrigeration segment offers condensing units, unit coolers, fluid coolers, air cooled condensers, air handlers, and refrigeration rack systems for preserving food and other perishables in supermarkets, convenience stores, restaurants, warehouses, and distribution centers, as well as for data centers, machine tooling, and other cooling applications; and compressor racks and industrial process chillers. The company sells its products and services through direct sales, distributors, and company-owned parts and supplies stores. Lennox International Inc. was founded in 1895 and is headquartered in Richardson, Texas.

Understand Lennox International Inc.: how it makes money

Lennox International designs, manufactures, and markets heating, ventilation, air conditioning, and refrigeration products, and it generates revenue by selling those systems, related indoor air quality equipment, replacement parts, and supplies for residential, commercial, and refrigeration applications.

The core profit engine is selling climate equipment plus replacement parts across residential, commercial, and refrigeration markets (multiple end markets, recurring service and parts exposure tied to installed equipment).

Business quality (Mixed): Business model is clear (HVAC and refrigeration products across three segments), but the provided data does not include a clean, segment-level revenue breakdown for the Refrigeration segment, so segment revenue weighting cannot be validated.

Valuation: At 23× earnings, LII trades 31% below the Machinery average (34×). Note: one-time items can distort reported P/E.

Bull case

  • Diversified end markets: Operations span Residential Heating & Cooling, Commercial Heating & Cooling, and Refrigeration, which can spread demand drivers across different customer types.
  • Parts and supplies support installed base economics: The company sells replacement parts and supplies, which can help stabilize results relative to selling only new equipment.

Bear case

  • Demand can swing with building activity and consumer spending: A meaningful portion of exposure is tied to heating and cooling equipment demand, which can be sensitive to housing and commercial construction cycles and consumer budgets.
  • Execution and cost pressure risk: Margins depend on manufacturing and operations execution, and HVAC product businesses can face input cost and pricing pressures.
Valuation — source: SEC EDGAR (first-party)
Price$537.60
Market Cap$18.71B
P/E Ratio23.3
EV / EBITDA16.0
Price / Book15.41
Price / Sales3.56
FCF Yield3.5%
DCF Value (model)$1032.61
DCF Upside vs Price92.1%
Profitability & Growth — source: SEC EDGAR
Revenue (TTM)$5.20B
Net Margin15.5%
Revenue Growth (YoY)5.8%
EPS Growth (YoY)-0.6%
FCF Growth (YoY)-35.7%
Financial Health — source: SEC EDGAR
Altman Z-Score7.85 (safe)
Piotroski F-Score6/9 (moderate)
Valuation vs Sector & Industry
Stock P/E23.3
Sector P/E (Industrials)29.4
Industry P/E (Machinery)32.9
vs Sector-20.8%
vs Industry-29.1%
Smart-Money Activity — SEC Form 4 / 13F / Congressional disclosures
Top Institutional HolderVANGUARD GROUP INC ($1.82B)
Institutional Holders Tracked10
Company
SectorIndustrials
IndustryMachinery
CEOAlok Maskara
Employees14,200
CountryUS
IPO Date1999-07-29

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LII earnings history · LII institutional & insider holders · LII KPIs & operating metrics · Congress trades · Insider trades · Short interest · Stock screener

Data as of 2026-07-09.

Figures sourced from U.S. Securities and Exchange Commission (SEC EDGAR) filings and market data. Not personalized investment advice.