What is the current annual operating margin of MLI?

As of today, MLI annual operating margin is 21.43%

What is 1-year change in MLI annual operating margin?

MLI annual operating margin is up +5.41% year-over-year

What is 3-year change in MLI annual operating margin?

MLI annual operating margin is down -0.74% over the past 3 years

How far is MLI annual operating margin from its all-time high?

MLI annual operating margin is currently -0.74% below its historical high of 21.59% set on December 31, 2022

How does MLI annual operating margin rank versus sector peers?

MLI annual operating margin is higher than 90.44% of companies in Industrials sector

When is MLI next annual earnings release?

The next annual earnings release for MLI is on February 2, 2027

What is the current quarterly operating margin of MLI?

As of today, MLI quarterly operating margin is 19.32%

What is MLI quarterly operating margin most recent change?

MLI quarterly operating margin was down -8.31% on September 26, 2026

What is 1-year change in MLI quarterly operating margin?

MLI quarterly operating margin is down -16.47% year-over-year

How far is MLI quarterly operating margin from its all-time high?

MLI quarterly operating margin is currently -18.99% below its historical high of 23.85% set on March 1, 2023

How does MLI quarterly operating margin rank versus sector peers?

MLI quarterly operating margin is higher than 80.81% of companies in Industrials sector

When is MLI next earnings release?

The next earnings release for MLI is on February 2, 2027

MLI Operating Margin History & Chart Since 1990

Annual Operating Margin

21.43%1.10%+5.41%

December 31, 2025

Summary

Current Value: As of today, MLI annual operating margin is 21.43%, up +5.41% on December 31, 2025
Historical Performance: MLI annual operating margin is down -0.74% over the past 3 years, up +111.13% over the past 5 years
All-Time High Comparison: MLI annual operating margin is currently -0.74% below its historical high of 21.59% set on December 31, 2022
3-Year Low Comparison: MLI annual operating margin is +5.41% above its 3-year low of 20.33% reached on December 31, 2024
Sector Comparison: MLI annual operating margin is higher than 90.44% of companies in Industrials sector

Operating Margin Chart

beforeafter

Performance

MLI Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Operating Margin	Dec 31, 25	21.43%	+5.4%	-0.7%	+111.1%	+293.9%
Quarterly Operating Margin	Sep 26, 26	19.32%	-16.5%	-12.8%	+10.1%	+544.0%
Price	Nov 6, 26	$52.96	-50.3%	+35.4%	+87.7%	+401.3%
PE Ratio	Nov 6, 26	13.57	-48.5%	+90.6%	+60.8%	-22.9%
Annual Revenue	Dec 31, 25	$4.18B	+10.9%	+4.9%	+74.3%	+102.9%
Annual Operating Profit	Dec 31, 25	$895.25M	+16.9%	+4.1%	+268.0%	+698.6%
Annual Gross Margin	Dec 31, 25	27.38%	+4.0%	+2.6%	+63.3%	+131.8%
Annual Net Margin	Dec 31, 25	18.51%	+12.9%	+11.2%	+209.0%	+335.5%

Operating Margin Highs

MLI Annual Operating Margin Highs Comparison
Period	High	Date	Current
3Y	21.59%	N/A	-0.7%
5Y	21.59%	Dec 31, 22	-0.7%
All	21.59%	Dec 31, 22	-0.7%

Operating Margin Lows

MLI Annual Operating Margin Lows Comparison
Period	Low	Date	Current
3Y	20.33%	Dec 31, 24	+5.4%
5Y	10.15%	N/A	+111.1%
All	-0.89%	Dec 31, 90	+2507.9%

Operating Margin History

Year	Value	Change
2025	21.43%	+5.4%
2024	20.33%	-5.6%
2023	21.54%	-0.2%
2022	21.59%	+36.2%
2021	15.85%	+56.2%
2020	10.15%	+32.0%
2019	7.69%	+16.7%
2018	6.59%	-5.9%
2017	7.00%	-8.0%
2016	7.61%	+26.0%
2015	6.04%	-6.8%
2014	6.48%	+13.5%
2013	5.71%	+0.4%
2012	5.69%	+6.6%
2011	5.34%	-1.8%
2010	5.44%	+35.7%
2009	4.01%	-28.8%
2008	5.63%	-18.2%

Year	Value	Change
2007	6.88%	-21.1%
2006	8.72%	+14.4%
2005	7.62%	-9.7%
2004	8.44%	+70.9%
2003	4.94%	-45.1%
2002	9.00%	-13.8%
2001	10.44%	-15.3%
2000	12.32%	-2.7%
1999	12.66%	+8.1%
1998	11.71%	+4.4%
1997	11.22%	-10.9%
1996	12.59%	+33.5%
1995	9.43%	+18.0%
1994	7.99%	+5.4%
1993	7.58%	+33.7%
1992	5.67%	+1,632.4%
1991	-0.37%	+58.4%
1990	-0.89%	-

FAQ

What is the current annual operating margin of MLI?: As of today, MLI annual operating margin is 21.43%
What is 1-year change in MLI annual operating margin?: MLI annual operating margin is up +5.41% year-over-year
What is 3-year change in MLI annual operating margin?: MLI annual operating margin is down -0.74% over the past 3 years
How far is MLI annual operating margin from its all-time high?: MLI annual operating margin is currently -0.74% below its historical high of 21.59% set on December 31, 2022
How does MLI annual operating margin rank versus sector peers?: MLI annual operating margin is higher than 90.44% of companies in Industrials sector
When is MLI next annual earnings release?: The next annual earnings release for MLI is on February 2, 2027

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Quarterly Operating Margin

19.32%1.75%-8.31%

September 26, 2026

Summary

Current Value: As of today, MLI quarterly operating margin is 19.32%, down -8.31% on September 26, 2026
Historical Performance: MLI quarterly operating margin is down -16.47% year-over-year, down -12.82% over the past 3 years
All-Time High Comparison: MLI quarterly operating margin is currently -18.99% below its historical high of 23.85% set on March 1, 2023
3-Year Low Comparison: MLI quarterly operating margin is +5.75% above its 3-year low of 18.27% reached on December 31, 2024
Sector Comparison: MLI quarterly operating margin is higher than 80.81% of companies in Industrials sector

Performance

MLI Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Operating Margin	Sep 26, 26	19.32%	-8.3%	-16.5%	-12.8%	+10.1%
Annual Operating Margin	Dec 31, 25	21.43%	–	+5.4%	-0.7%	+111.1%
Price	Nov 6, 26	$52.96	-23.8%	-50.3%	+35.4%	+87.7%
PE Ratio	Nov 6, 26	13.57	-25.0%	-48.5%	+90.6%	+60.8%
Quarterly Revenue	Sep 26, 26	$1.42B	-0.7%	+31.6%	+73.0%	+44.4%
Quarterly Operating Profit	Sep 26, 26	$274.10M	-8.9%	+9.9%	+50.9%	+59.0%
Quarterly Gross Margin	Sep 26, 26	23.77%	-7.9%	-17.6%	-15.3%	+5.7%
Quarterly Net Margin	Sep 26, 26	15.81%	-9.8%	-19.0%	-4.5%	-9.9%

Quarterly Operating Margin Highs

MLI Quarterly Operating Margin Highs Comparison
Period	High	Date	Current
1Y	23.13%	N/A	-16.5%
3Y	23.13%	Sep 27, 25	-16.5%
5Y	23.85%	Mar 1, 23	-19.0%
All	23.85%	Mar 1, 23	-19.0%

Quarterly Operating Margin Lows

MLI Quarterly Operating Margin Lows Comparison
Period	Low	Date	Current
1Y	19.30%	Dec 31, 25	+0.1%
3Y	18.27%	Dec 31, 24	+5.8%
5Y	17.23%	Dec 25, 21	+12.1%
All	-373.79%	Dec 31, 90	+105.2%

Quarterly Operating Margin History

Month	Value	Change
Sep 2026	19.32%	-8.3%
Jun 2026	21.07%	-2.7%
Mar 2026	21.66%	+12.2%
Dec 2025	19.30%	-16.6%
Sep 2025	23.13%	+1.5%
Jun 2025	22.79%	+16.2%
Mar 2025	19.62%	+7.4%
Dec 2024	18.27%	-9.1%
Sep 2024	20.11%	-6.9%
Jun 2024	21.61%	+0.6%
Mar 2024	21.48%	+15.8%
Dec 2023	18.55%	-16.3%
Sep 2023	22.16%	+4.2%
Jun 2023	21.27%	-10.8%
Mar 2023	23.85%	+5.9%
Dec 2022	22.53%	+6.4%
Sep 2022	21.17%	-4.7%
Jun 2022	22.21%	+11.3%
Mar 2022	19.95%	+15.8%
Dec 2021	17.23%	-1.8%
Sep 2021	17.55%	+12.9%
Jun 2021	15.54%	+27.5%
Mar 2021	12.19%	+16.5%
Dec 2020	10.46%	-5.0%
Sep 2020	11.01%	+2.7%
Jun 2020	10.72%	+28.4%
Mar 2020	8.35%	+7.7%
Dec 2019	7.75%	+1.8%
Sep 2019	7.61%	-0.1%
Jun 2019	7.62%	-2.2%
Mar 2019	7.79%	+10.0%
Dec 2018	7.08%	+42.2%
Sep 2018	4.98%	-33.0%
Jun 2018	7.43%	+7.2%
Mar 2018	6.93%	+44.7%
Dec 2017	4.79%	-35.6%
Sep 2017	7.44%	+1.6%
Jun 2017	7.32%	-10.2%
Mar 2017	8.15%	+42.5%
Dec 2016	5.72%	-31.3%
Sep 2016	8.32%	+8.3%
Jun 2016	7.68%	-0.3%
Mar 2016	7.70%	+87.3%
Dec 2015	4.11%	-22.3%
Sep 2015	5.29%	-31.0%
Jun 2015	7.67%	+13.6%
Mar 2015	6.75%	+25.2%
Dec 2014	5.39%	-15.0%
Sep 2014	6.34%	-19.7%
Jun 2014	7.90%	+17.9%
Mar 2014	6.70%	+51.6%
Dec 2013	4.42%	-23.4%
Sep 2013	5.77%	-11.8%
Jun 2013	6.54%	-0.6%
Mar 2013	6.58%	+32.4%
Dec 2012	4.97%	+4.9%
Sep 2012	4.74%	-5.6%
Jun 2012	5.02%	-36.6%
Mar 2012	7.92%	+69.2%
Dec 2011	4.68%	+56.0%
Sep 2011	3.00%	-45.8%
Jun 2011	5.53%	-27.9%
Mar 2011	7.67%	+48.6%
Dec 2010	5.16%	-15.5%
Sep 2010	6.11%	+14.0%
Jun 2010	5.36%	+5.9%
Mar 2010	5.06%	-4.2%
Dec 2009	5.28%	-20.2%
Sep 2009	6.62%	+76.5%
Jun 2009	3.75%	+600.0%
Mar 2009	-0.75%	-113.3%
Dec 2008	5.65%	+26.1%

Month	Value	Change
Sep 2008	4.48%	-27.6%
Jun 2008	6.19%	+1.3%
Mar 2008	6.11%	-30.8%
Dec 2007	8.83%	+43.6%
Sep 2007	6.15%	-21.7%
Jun 2007	7.85%	+75.2%
Mar 2007	4.48%	+55.0%
Dec 2006	2.89%	-70.3%
Sep 2006	9.72%	-18.1%
Jun 2006	11.87%	+34.0%
Mar 2006	8.86%	-12.6%
Dec 2005	10.14%	+45.5%
Sep 2005	6.97%	+13.1%
Jun 2005	6.16%	-9.0%
Mar 2005	6.77%	-10.3%
Dec 2004	7.55%	-0.7%
Sep 2004	7.60%	-25.3%
Jun 2004	10.17%	+24.3%
Mar 2004	8.18%	+38.4%
Dec 2003	5.91%	-1.2%
Sep 2003	5.98%	+29.4%
Jun 2003	4.62%	+51.5%
Mar 2003	3.05%	-55.9%
Dec 2002	6.92%	-15.3%
Sep 2002	8.17%	-19.1%
Jun 2002	10.10%	0.0%
Mar 2002	10.10%	+20.7%
Dec 2001	8.37%	-31.3%
Sep 2001	12.18%	+3.5%
Jun 2001	11.77%	+28.2%
Mar 2001	9.18%	-12.2%
Dec 2000	10.45%	+2.3%
Sep 2000	10.22%	-28.1%
Jun 2000	14.22%	+1.1%
Mar 2000	14.06%	+7.7%
Dec 1999	13.05%	-4.0%
Sep 1999	13.59%	+5.6%
Jun 1999	12.87%	+16.1%
Mar 1999	11.09%	+7.1%
Dec 1998	10.35%	-13.5%
Sep 1998	11.96%	-4.4%
Jun 1998	12.51%	+2.1%
Mar 1998	12.25%	+19.6%
Dec 1997	10.24%	-13.1%
Sep 1997	11.79%	+12.8%
Jun 1997	10.45%	-16.8%
Mar 1997	12.56%	-16.5%
Dec 1996	15.04%	+4.6%
Sep 1996	14.38%	+31.7%
Jun 1996	10.92%	+6.0%
Mar 1996	10.30%	-5.0%
Dec 1995	10.84%	+9.4%
Sep 1995	9.91%	+15.2%
Jun 1995	8.60%	+1.2%
Mar 1995	8.50%	-15.3%
Dec 1994	10.03%	+25.8%
Sep 1994	7.97%	-10.8%
Jun 1994	8.93%	+8.9%
Mar 1994	8.20%	-11.9%
Dec 1993	9.31%	+18.4%
Sep 1993	7.86%	+6.5%
Jun 1993	7.38%	+25.5%
Mar 1993	5.88%	-28.9%
Dec 1992	8.27%	+91.0%
Sep 1992	4.33%	-17.8%
Jun 1992	5.27%	-1.3%
Mar 1992	5.34%	+238.3%
Dec 1991	-3.86%	-28.7%
Sep 1991	-3.00%	-214.5%
Jun 1991	2.62%	+11.0%
Mar 1991	2.36%	+100.6%
Dec 1990	-373.79%	-

FAQ

What is the current quarterly operating margin of MLI?: As of today, MLI quarterly operating margin is 19.32%
What is MLI quarterly operating margin most recent change?: MLI quarterly operating margin was down -8.31% on September 26, 2026
What is 1-year change in MLI quarterly operating margin?: MLI quarterly operating margin is down -16.47% year-over-year
How far is MLI quarterly operating margin from its all-time high?: MLI quarterly operating margin is currently -18.99% below its historical high of 23.85% set on March 1, 2023
How does MLI quarterly operating margin rank versus sector peers?: MLI quarterly operating margin is higher than 80.81% of companies in Industrials sector
When is MLI next earnings release?: The next earnings release for MLI is on February 2, 2027

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Data Sources & References

MLI Official Website www.muellerindustries.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/89439/000008943926000002/0000089439-26-000002-index.htm
MLI Profile on Yahoo Finance finance.yahoo.com/quote/MLI
MLI Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/mli