What is the current annual net margin of LII?

As of today, LII annual net margin is 15.51%

What is 1-year change in LII annual net margin?

LII annual net margin is up +2.65% year-over-year

What is 3-year change in LII annual net margin?

LII annual net margin is up +47.15% over the past 3 years

How far is LII annual net margin from its all-time high?

LII annual net margin is currently at its all-time high

How does LII annual net margin rank versus sector peers?

LII annual net margin is higher than 88.81% of companies in Industrials sector

When is LII next annual earnings release?

The next annual earnings release for LII is on February 3, 2027

What is the current quarterly net margin of LII?

As of today, LII quarterly net margin is 14.07%

What is LII quarterly net margin most recent change?

LII quarterly net margin was down -19.18% on September 30, 2026

What is 1-year change in LII quarterly net margin?

LII quarterly net margin is down -18.34% year-over-year

How far is LII quarterly net margin from its all-time high?

LII quarterly net margin is currently -22.90% below its historical high of 18.25% set on June 30, 2025

How does LII quarterly net margin rank versus sector peers?

LII quarterly net margin is higher than 81.80% of companies in Industrials sector

When is LII next earnings release?

The next earnings release for LII is on February 3, 2027

LII Net Margin History & Chart Since 1997

Annual Net Margin

15.51%0.40%+2.65%

December 31, 2025

Summary

Current Value: As of today, LII annual net margin is 15.51%, up +2.65% on December 31, 2025
Historical Performance: LII annual net margin is up +47.15% over the past 3 years, up +57.78% over the past 5 years
All-Time High Comparison: LII annual net margin is currently at its all-time high
3-Year Low Comparison: LII annual net margin is +47.15% above its 3-year low of 10.54% reached on an earlier date
Sector Comparison: LII annual net margin is higher than 88.81% of companies in Industrials sector

Net Margin Chart

beforeafter

Performance

LII Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Net Margin	Dec 31, 25	15.51%	+2.6%	+47.1%	+57.8%	+310.3%
Quarterly Net Margin	Sep 30, 26	14.07%	-18.3%	+47.5%	+18.0%	+284.4%
Price	Nov 6, 26	$341.97	-30.4%	-11.2%	+13.2%	+928.5%
PE Ratio	Nov 6, 26	15.87	-21.2%	-37.5%	-31.6%	-11.7%
Annual Revenue	Dec 31, 25	$5.20B	-2.7%	+10.1%	+43.0%	+67.8%
Annual Net Income	Dec 31, 25	$805.80M	-0.7%	+62.1%	+125.7%	+588.1%
Annual Gross Margin	Dec 31, 25	33.39%	+0.7%	+23.4%	+16.5%	+17.4%
Annual Operating Margin	Dec 31, 25	20.28%	+4.0%	+47.2%	+51.8%	+218.4%

Net Margin Highs

LII Annual Net Margin Highs Comparison
Period	High	Date	Current
3Y	15.51%	Dec 31, 25	at high
5Y	15.51%	Dec 31, 25	at high
All	15.51%	Dec 31, 25	at high

Net Margin Lows

LII Annual Net Margin Lows Comparison
Period	Low	Date	Current
3Y	10.54%	N/A	+47.1%
5Y	9.83%	N/A	+57.8%
All	-3.13%	Dec 31, 04	+595.5%

Net Margin History

Year	Value	Change
2025	15.51%	+2.6%
2024	15.11%	+27.6%
2023	11.84%	+12.3%
2022	10.54%	-4.7%
2021	11.06%	+12.5%
2020	9.83%	-8.5%
2019	10.74%	+15.7%
2018	9.28%	+16.0%
2017	8.00%	+4.6%
2016	7.65%	+41.7%
2015	5.40%	-12.6%
2014	6.18%	+10.0%
2013	5.62%	+22.7%
2012	4.58%	+71.5%
2011	2.67%	-29.4%

Year	Value	Change
2010	3.78%	+74.2%
2009	2.17%	-39.6%
2008	3.59%	-20.4%
2007	4.51%	-0.2%
2006	4.52%	0.0%
2005	4.52%	+244.4%
2004	-3.13%	-214.2%
2003	2.74%	+40.5%
2002	1.95%	+243.4%
2001	-1.36%	-175.1%
2000	1.81%	-41.4%
1999	3.09%	+8.8%
1998	2.84%	+219.8%
1997	-2.37%	-

FAQ

What is the current annual net margin of LII?: As of today, LII annual net margin is 15.51%
What is 1-year change in LII annual net margin?: LII annual net margin is up +2.65% year-over-year
What is 3-year change in LII annual net margin?: LII annual net margin is up +47.15% over the past 3 years
How far is LII annual net margin from its all-time high?: LII annual net margin is currently at its all-time high
How does LII annual net margin rank versus sector peers?: LII annual net margin is higher than 88.81% of companies in Industrials sector
When is LII next annual earnings release?: The next annual earnings release for LII is on February 3, 2027

Net Margin Formula

Net Margin = Net Income

Revenue × 100%

Quarterly Net Margin

14.07%3.34%-19.18%

September 30, 2026

Summary

Current Value: As of today, LII quarterly net margin is 14.07%, down -19.18% on September 30, 2026
Historical Performance: LII quarterly net margin is down -18.34% year-over-year, up +47.48% over the past 3 years
All-Time High Comparison: LII quarterly net margin is currently -22.90% below its historical high of 18.25% set on June 30, 2025
3-Year Low Comparison: LII quarterly net margin is +47.48% above its 3-year low of 9.54% reached on an earlier date
Sector Comparison: LII quarterly net margin is higher than 81.80% of companies in Industrials sector

Performance

LII Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Net Margin	Sep 30, 26	14.07%	-19.2%	-18.3%	+47.5%	+18.0%
Annual Net Margin	Dec 31, 25	15.51%	–	+2.6%	+47.1%	+57.8%
Price	Nov 6, 26	$341.97	-21.5%	-30.4%	-11.2%	+13.2%
PE Ratio	Nov 6, 26	15.87	-18.0%	-21.2%	-37.5%	-31.6%
Quarterly Revenue	Sep 30, 26	$1.57B	+1.8%	+10.2%	+15.1%	+48.4%
Quarterly Net Income	Sep 30, 26	$221.20M	-17.8%	-14.9%	+69.6%	+75.1%
Quarterly Gross Margin	Sep 30, 26	31.62%	-9.4%	-3.7%	+0.8%	+13.7%
Quarterly Operating Margin	Sep 30, 26	20.34%	-11.8%	-5.5%	+11.3%	+34.2%

Quarterly Net Margin Highs

LII Quarterly Net Margin Highs Comparison
Period	High	Date	Current
1Y	17.41%	Jun 30, 26	-19.2%
3Y	18.25%	Jun 30, 25	-22.9%
5Y	18.25%	Jun 30, 25	-22.9%
All	18.25%	Jun 30, 25	-22.9%

Quarterly Net Margin Lows

LII Quarterly Net Margin Lows Comparison
Period	Low	Date	Current
1Y	10.33%	Mar 31, 26	+36.2%
3Y	9.54%	N/A	+47.5%
5Y	8.25%	Mar 31, 22	+70.5%
All	-26.76%	Mar 31, 04	+152.6%

Quarterly Net Margin History

Month	Value	Change
Sep 2026	14.07%	-19.2%
Jun 2026	17.41%	+68.5%
Mar 2026	10.33%	-13.3%
Dec 2025	11.92%	-30.8%
Sep 2025	17.23%	-5.6%
Jun 2025	18.25%	+51.1%
Mar 2025	12.08%	-19.5%
Dec 2024	15.01%	-5.9%
Sep 2024	15.95%	-5.9%
Jun 2024	16.95%	+42.8%
Mar 2024	11.87%	-5.1%
Dec 2023	12.51%	+31.1%
Sep 2023	9.54%	-38.0%
Jun 2023	15.39%	+64.8%
Mar 2023	9.34%	+8.2%
Dec 2022	8.63%	-24.3%
Sep 2022	11.40%	-12.1%
Jun 2022	12.97%	+57.2%
Mar 2022	8.25%	-4.6%
Dec 2021	8.65%	-27.4%
Sep 2021	11.92%	-13.1%
Jun 2021	13.72%	+51.6%
Mar 2021	9.05%	-26.3%
Dec 2020	12.28%	-1.6%
Sep 2020	12.48%	+16.7%
Jun 2020	10.69%	+517.9%
Mar 2020	1.73%	-86.5%
Dec 2019	12.86%	+15.9%
Sep 2019	11.10%	+9.9%
Jun 2019	10.10%	+15.0%
Mar 2019	8.78%	-1.7%
Dec 2018	8.93%	-14.8%
Sep 2018	10.48%	-11.5%
Jun 2018	11.84%	+160.8%
Mar 2018	4.54%	-6.0%
Dec 2017	4.83%	-51.1%
Sep 2017	9.88%	-6.4%
Jun 2017	10.56%	+92.7%
Mar 2017	5.48%	+20.7%
Dec 2016	4.54%	-54.9%
Sep 2016	10.07%	-7.7%
Jun 2016	10.91%	+213.5%
Mar 2016	3.48%	+159.7%
Dec 2015	1.34%	-84.1%
Sep 2015	8.41%	+2.3%
Jun 2015	8.22%	+302.9%
Mar 2015	2.04%	-64.0%
Dec 2014	5.67%	-24.5%
Sep 2014	7.51%	-3.3%
Jun 2014	7.77%	+171.7%
Mar 2014	2.86%	-37.0%
Dec 2013	4.54%	-40.1%
Sep 2013	7.58%	+7.7%
Jun 2013	7.04%	+198.3%
Mar 2013	2.36%	-39.0%
Dec 2012	3.87%	-37.0%

Month	Value	Change
Sep 2012	6.14%	+19.0%
Jun 2012	5.16%	+7,471.4%
Mar 2012	-0.07%	-103.2%
Dec 2011	2.21%	-39.6%
Sep 2011	3.66%	-23.8%
Jun 2011	4.80%	+557.1%
Mar 2011	-1.05%	-128.8%
Dec 2010	3.65%	-28.7%
Sep 2010	5.12%	-6.7%
Jun 2010	5.49%	+2,845.0%
Mar 2010	-0.20%	-114.8%
Dec 2009	1.35%	-70.0%
Sep 2009	4.50%	-0.9%
Jun 2009	4.54%	+248.9%
Mar 2009	-3.05%	-293.0%
Dec 2008	1.58%	-72.0%
Sep 2008	5.64%	+10.4%
Jun 2008	5.11%	+523.2%
Mar 2008	0.82%	-81.3%
Dec 2007	4.38%	-26.3%
Sep 2007	5.94%	+2.6%
Jun 2007	5.79%	+431.2%
Mar 2007	1.09%	-77.1%
Dec 2006	4.77%	+35.1%
Sep 2006	3.53%	-44.8%
Jun 2006	6.39%	+143.0%
Mar 2006	2.63%	-45.4%
Dec 2005	4.82%	-8.0%
Sep 2005	5.24%	+1.6%
Jun 2005	5.16%	+382.2%
Mar 2005	1.07%	-58.5%
Dec 2004	2.58%	-29.1%
Sep 2004	3.64%	-18.9%
Jun 2004	4.49%	+116.8%
Mar 2004	-26.76%	-1,386.5%
Dec 2003	2.08%	-37.0%
Sep 2003	3.30%	-11.3%
Jun 2003	3.72%	+830.0%
Mar 2003	0.40%	-43.7%
Dec 2002	0.71%	-79.0%
Sep 2002	3.38%	+9.4%
Jun 2002	3.09%	+3,333.3%
Mar 2002	0.09%	+101.6%
Dec 2001	-5.54%	-401.1%
Sep 2001	1.84%	+324.4%
Jun 2001	-0.82%	+42.3%
Mar 2001	-1.42%	-226.8%
Dec 2000	1.12%	-22.8%
Sep 2000	1.45%	-59.8%
Jun 2000	3.61%	+131.4%
Mar 2000	1.56%	-39.5%
Dec 1999	2.58%	-34.7%
Sep 1999	3.95%	-1.3%
Jun 1999	4.00%	+174.0%
Mar 1999	1.46%	-

FAQ

What is the current quarterly net margin of LII?: As of today, LII quarterly net margin is 14.07%
What is LII quarterly net margin most recent change?: LII quarterly net margin was down -19.18% on September 30, 2026
What is 1-year change in LII quarterly net margin?: LII quarterly net margin is down -18.34% year-over-year
How far is LII quarterly net margin from its all-time high?: LII quarterly net margin is currently -22.90% below its historical high of 18.25% set on June 30, 2025
How does LII quarterly net margin rank versus sector peers?: LII quarterly net margin is higher than 81.80% of companies in Industrials sector
When is LII next earnings release?: The next earnings release for LII is on February 3, 2027

Net Margin Formula

Net Margin = Net Income

Revenue × 100%

Data Sources & References

LII Official Website www.lennox.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1069202/000106920226000005/0001069202-26-000005-index.htm
LII Profile on Yahoo Finance finance.yahoo.com/quote/LII
LII Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/lii