
Lennox International Inc. (LII), headquartered in Richardson, Texas, designs, manufactures, and markets products for the heating, ventilation, air conditioning, and refrigeration markets. Valued at $20.7 billion by market cap, the company sells its products and services through direct sales, distributors, and company-owned parts and supplies stores.
Shares of this leader in energy-efficient climate-control solutions have underperformed the broader market over the past year. LII has gained 5.6% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 20.6%. In 2025, LII’s stock is down 3.1%, compared to the SPX’s 9.6% rise on a YTD basis.