Lennox International (LII) Operating Margin (2009 - 2026)

Lennox International's Operating Margin history runs 18 years deep, the most recent figure standing at 14.4% for Q1 2026.

• In Q1 2026, Operating Margin fell 126.0% year-over-year to 14.4%; the TTM figure through Mar 2026 stood at 19.72% (up 32.0% YoY), while the FY2025 annual figure was 20.05%, up 57.0% from the prior year.
• Operating Margin was 14.4% for Q1 2026 at Lennox International, down from 16.38% in the prior quarter.
• In the past five years, Operating Margin ranged from a high of 23.25% in Q2 2025 to a low of 11.04% in Q1 2022.
• Historically, Operating Margin has averaged 16.89% across 5 years, with a median of 16.17% in 2023.
• The sharpest annual moves came in 2024 and 2025: Operating Margin surged 657 bps in 2024, then slumped 222 bps in 2025.
• A 5-year view of Operating Margin shows it stood at 12.03% in 2022, then soared by 34 bps to 16.17% in 2023, then advanced by 15 bps to 18.6% in 2024, then dropped by 12 bps to 16.38% in 2025, then slipped by 12 bps to 14.4% in 2026.
• The last three Operating Margin figures came in at 14.4% (Q1 2026), 16.38% (Q4 2025), and 23.04% (Q3 2025), per Business Quant data.