Pomerantz LLP said it is investigating claims on behalf of investors in Lennox International, Inc. after the company reported second-quarter 2026 results that missed expectations and triggered a sharp share-price decline. Lennox posted $1.5 billion in sales on July 29, 2026 and lowered its 2026 earnings forecast by about 3% to $23.00 to $24.00 per share, citing "continued softness in the residential end market." The stock fell $114.09, or 20.97%, to close at $430.02 that day. The investigation is focused on whether Lennox and certain of its officers and/or directors engaged in securities fraud or other unlawful business practices.