Lennox International Inc. (NYSE: LII), a leading provider of climate control solutions, reported impressive financial results for the fourth quarter and full year 2024, defying market expectations with its strong performance. However, the company's stock experienced a surprising 5.96% plummet during the pre-market session on Wednesday, January 29, 2025.

In the fourth quarter of 2024, Lennox's revenue soared to $1.3 billion, representing a remarkable 22% increase compared to the same period in the previous year. The company's operating income also surged by 32% to $245 million, while its adjusted diluted earnings per share (EPS) skyrocketed by 54% to $5.60, exceeding analysts' estimates.

For the full year 2024, Lennox reported revenue of $5.3 billion, reflecting a 13% year-over-year growth. The company's operating income reached $1.0 billion, a 31% increase, and its adjusted EPS climbed 26% to $22.58. These stellar results were driven by strong sales volume, pricing excellence, and productivity gains, although partially offset by inflationary pressures and strategic investments.

Looking ahead to 2025, Lennox provided a positive outlook, anticipating core revenue growth of approximately 2% and adjusted EPS in the range of $22.00 to $23.50. The company's guidance reflects the impact of new refrigerant products, along with low single-digit increases in price and volume.

Despite the impressive financial performance and optimistic guidance, Lennox's stock experienced a significant 5.96% plummet in pre-market trading. While the company did not explicitly address the reasons behind the stock price decline, potential factors could include concerns about macroeconomic conditions, competitive pressures, or investors' expectations regarding future growth.