Mueller Industries (MLI) Operating Margin (2009 - 2026)

Mueller Industries' Operating Margin history runs 18 years deep, the most recent figure standing at 26.17% for Q1 2026.

• In Q1 2026, Operating Margin rose 555.0% year-over-year to 26.17%; the TTM figure through Mar 2026 stood at 24.35% (up 411.0% YoY), while the FY2025 annual figure was 22.94%, up 250.0% from the prior year.
• Operating Margin was 26.17% for Q1 2026 at Mueller Industries, up from 17.87% in the prior quarter.
• In the past five years, Operating Margin ranged from a high of 26.72% in Q2 2025 to a low of 17.87% in Q4 2025.
• Historically, Operating Margin has averaged 22.02% across 5 years, with a median of 21.7% in 2022.
• The sharpest annual moves came in 2022 and 2023: Operating Margin jumped 975 bps in 2022, then plunged 323 bps in 2023.
• A 5-year view of Operating Margin shows it stood at 21.7% in 2022, then decreased by 15 bps to 18.47% in 2023, then decreased by 0 bps to 18.44% in 2024, then fell by 3 bps to 17.87% in 2025, then soared by 46 bps to 26.17% in 2026.
• The last three Operating Margin figures came in at 26.17% (Q1 2026), 17.87% (Q4 2025), and 25.62% (Q3 2025), per Business Quant data.