Lennox International Inc. (LII) is a manufacturer and marketer of heating, ventilation, air-conditioning and refrigeration (HVACR) systems for residential and commercial uses. Headquartered in Richardson, Texas, the company designs, manufactures and sells a broad range of products, including furnaces, heat pumps, air-conditioners, packaged systems, indoor-air-quality equipment and related services under brands such as Lennox, Armstrong Air, Bohn, ADP and others. The company’s market capitalization is around $17.2 billion.
Shares of Lennox International have underperformed the broader market. Over the past 52 weeks, LII has declined 22.4%, while the broader S&P 500 Index ($SPX) has rallied nearly 14% over the same time frame. In 2025, LII stock is down 19.7%, compared to the SPX’s 16.2% rise on a YTD basis.
