What is the current annual operating margin of CTAS?

As of today, CTAS annual operating margin is 23.27%

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

CTAS annual operating margin is up +1.97% year-over-year

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

CTAS annual operating margin is up +13.79% over the past 3 years

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

CTAS annual operating margin is currently at its all-time high

How does CTAS annual operating margin rank versus sector peers?

CTAS annual operating margin is higher than 92.15% of companies in Industrials sector

When is CTAS next annual earnings release?

As of today, the next annual earnings release for CTAS has not been scheduled

What is the current quarterly operating margin of CTAS?

As of today, CTAS quarterly operating margin is 23.65%

What is CTAS quarterly operating margin most recent change?

CTAS quarterly operating margin was up +1.85% on May 31, 2026

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

CTAS quarterly operating margin is up +5.58% year-over-year

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

CTAS quarterly operating margin is currently at its all-time high

How does CTAS quarterly operating margin rank versus sector peers?

CTAS quarterly operating margin is higher than 90.49% of companies in Industrials sector

When is CTAS next earnings release?

The next earnings release for CTAS is on September 23, 2026

CTAS Operating Margin History & Chart Since 1980

Annual Operating Margin

23.27%0.45%+1.97%

May 31, 2026

Summary

Current Value: As of today, CTAS annual operating margin is 23.27%, up +1.97% on May 31, 2026
Historical Performance: CTAS annual operating margin is up +13.79% over the past 3 years, up +19.52% over the past 5 years
All-Time High Comparison: CTAS annual operating margin is currently at its all-time high
3-Year Low Comparison: CTAS annual operating margin is +13.79% above its 3-year low of 20.45% reached on an earlier date
Sector Comparison: CTAS annual operating margin is higher than 92.15% of companies in Industrials sector

Operating Margin Chart

beforeafter

Performance

CTAS Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Operating Margin	May 31, 26	23.27%	+2.0%	+13.8%	+19.5%	+101.3%
Quarterly Operating Margin	May 31, 26	23.65%	+5.6%	+14.8%	+21.8%	+85.8%
Price	Aug 7, 26	$203.20	-9.0%	+64.4%	+107.7%	+2647.8%
PE Ratio	Aug 7, 26	41.40	-18.4%	+8.8%	+8.4%	+135.1%
Annual Revenue	May 31, 26	$11.26B	+8.9%	+27.8%	+58.3%	+195.6%
Annual Operating Profit	May 31, 26	$2.62B	+11.1%	+45.4%	+89.2%	+495.4%
Annual Gross Margin	May 31, 26	50.67%	+5.2%	+7.0%	+8.8%	+20.0%
Annual Net Margin	May 31, 26	17.75%	+1.6%	+16.6%	+14.5%	+175.2%

Operating Margin Highs

CTAS Annual Operating Margin Highs Comparison
Period	High	Date	Current
3Y	23.27%	May 31, 26	at high
5Y	23.27%	May 31, 26	at high
All	23.27%	May 31, 26	at high

Operating Margin Lows

CTAS Annual Operating Margin Lows Comparison
Period	Low	Date	Current
3Y	20.45%	N/A	+13.8%
5Y	19.47%	N/A	+19.5%
All	11.56%	May 31, 11	+101.3%

Operating Margin History

Year	Value	Change
2026	23.27%	+2.0%
2025	22.82%	+5.8%
2024	21.56%	+5.4%
2023	20.45%	+1.2%
2022	20.21%	+3.8%
2021	19.47%	+15.3%
2020	16.89%	+1.4%
2019	16.66%	+8.8%
2018	15.31%	-4.4%
2017	16.02%	-0.1%
2016	16.03%	+3.0%
2015	15.56%	+15.8%
2014	13.44%	+4.2%
2013	12.90%	-2.0%
2012	13.16%	+13.8%
2011	11.56%	-0.3%
2010	11.60%	-6.5%
2009	12.40%	-15.4%
2008	14.66%	-4.9%
2007	15.41%	-3.4%
2006	15.95%	+0.6%
2005	15.86%	-2.8%
2004	16.31%	+3.4%
2003	15.77%	-5.0%

Year	Value	Change
2002	16.60%	-2.5%
2001	17.03%	+0.1%
2000	17.02%	+6.0%
1999	16.06%	-4.2%
1998	16.77%	-6.3%
1997	17.90%	+1.4%
1996	17.65%	+2.3%
1995	17.26%	-0.1%
1994	17.28%	+1.7%
1993	16.99%	+7.9%
1992	15.74%	+1.3%
1991	15.54%	+2.8%
1990	15.12%	+0.1%
1989	15.11%	+2.2%
1988	14.79%	-10.8%
1987	16.59%	-2.4%
1986	17.00%	+5.9%
1985	16.05%	-4.7%
1984	16.85%	+10.4%
1983	15.26%	+1.6%
1982	15.02%	+4.8%
1981	14.33%	-0.7%
1980	14.43%	-

FAQ

What is the current annual operating margin of CTAS?: As of today, CTAS annual operating margin is 23.27%
What is 1-year change in CTAS annual operating margin?: CTAS annual operating margin is up +1.97% year-over-year
What is 3-year change in CTAS annual operating margin?: CTAS annual operating margin is up +13.79% over the past 3 years
How far is CTAS annual operating margin from its all-time high?: CTAS annual operating margin is currently at its all-time high
How does CTAS annual operating margin rank versus sector peers?: CTAS annual operating margin is higher than 92.15% of companies in Industrials sector
When is CTAS next annual earnings release?: As of today, the next annual earnings release for CTAS has not been scheduled

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Quarterly Operating Margin

23.65%0.43%+1.85%

May 31, 2026

Summary

Current Value: As of today, CTAS quarterly operating margin is 23.65%, up +1.85% on May 31, 2026
Historical Performance: CTAS quarterly operating margin is up +5.58% year-over-year, up +14.75% over the past 3 years
All-Time High Comparison: CTAS quarterly operating margin is currently at its all-time high
3-Year Low Comparison: CTAS quarterly operating margin is +14.75% above its 3-year low of 20.61% reached on an earlier date
Sector Comparison: CTAS quarterly operating margin is higher than 90.49% of companies in Industrials sector

Performance

CTAS Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Operating Margin	May 31, 26	23.65%	+1.9%	+5.6%	+14.8%	+21.8%
Annual Operating Margin	May 31, 26	23.27%	–	+2.0%	+13.8%	+19.5%
Price	Aug 7, 26	$203.20	+19.5%	-9.0%	+64.4%	+107.7%
PE Ratio	Aug 7, 26	41.40	+15.4%	-18.4%	+8.8%	+8.4%
Quarterly Revenue	May 31, 26	$2.91B	+2.2%	+8.9%	+27.2%	+58.3%
Quarterly Operating Profit	May 31, 26	$687.06M	+4.1%	+15.0%	+45.9%	+92.8%
Quarterly Gross Margin	May 31, 26	49.26%	-0.0%	+2.5%	+3.4%	+5.3%
Quarterly Net Margin	May 31, 26	17.59%	-0.2%	+5.1%	+16.5%	+21.4%

Quarterly Operating Margin Highs

CTAS Quarterly Operating Margin Highs Comparison
Period	High	Date	Current
1Y	23.65%	May 31, 26	at high
3Y	23.65%	May 31, 26	at high
5Y	23.65%	May 31, 26	at high
All	23.65%	May 31, 26	at high

Quarterly Operating Margin Lows

CTAS Quarterly Operating Margin Lows Comparison
Period	Low	Date	Current
1Y	22.40%	N/A	+5.6%
3Y	20.61%	N/A	+14.8%
5Y	19.42%	N/A	+21.8%
All	-220.25%	May 31, 86	+110.7%

Quarterly Operating Margin History

Month	Value	Change
May 2026	23.65%	+1.9%
Feb 2026	23.22%	-0.9%
Nov 2025	23.42%	+3.0%
Aug 2025	22.73%	+1.5%
May 2025	22.40%	-4.2%
Feb 2025	23.37%	+1.2%
Nov 2024	23.09%	+2.9%
Aug 2024	22.43%	+1.2%
May 2024	22.16%	+2.4%
Feb 2024	21.64%	+2.9%
Nov 2023	21.02%	-1.6%
Aug 2023	21.37%	+3.7%
May 2023	20.61%	+1.0%
Feb 2023	20.40%	-0.3%
Nov 2022	20.46%	+0.7%
Aug 2022	20.32%	+4.3%
May 2022	19.49%	-6.3%
Feb 2022	20.79%	+4.8%
Nov 2021	19.83%	-4.6%
Aug 2021	20.78%	+7.0%
May 2021	19.42%	+5.7%
Feb 2021	18.37%	-8.5%
Nov 2020	20.08%	+0.3%
Aug 2020	20.02%	+34.5%
May 2020	14.89%	-14.3%
Feb 2020	17.38%	-4.2%
Nov 2019	18.14%	+7.3%
Aug 2019	16.90%	-3.9%
May 2019	17.58%	+6.0%
Feb 2019	16.59%	+0.5%
Nov 2018	16.50%	+3.7%
Aug 2018	15.91%	-5.3%
May 2018	16.80%	+27.2%
Feb 2018	13.21%	-14.6%
Nov 2017	15.46%	-1.5%
Aug 2017	15.70%	-0.3%
May 2017	15.75%	-1.8%
Feb 2017	16.04%	+0.1%
Nov 2016	16.03%	-1.8%
Aug 2016	16.32%	+2.3%
May 2016	15.96%	+0.6%
Feb 2016	15.87%	-3.4%
Nov 2015	16.43%	+6.2%
Aug 2015	15.47%	-0.5%
May 2015	15.55%	-0.7%
Feb 2015	15.66%	-2.9%
Nov 2014	16.13%	+8.8%
Aug 2014	14.83%	+1.9%
May 2014	14.55%	+9.5%
Feb 2014	13.29%	-0.6%
Nov 2013	13.37%	+7.0%
Aug 2013	12.50%	-8.3%
May 2013	13.63%	+10.2%
Feb 2013	12.37%	-5.6%
Nov 2012	13.11%	-1.1%
Aug 2012	13.25%	-0.9%
May 2012	13.37%	-1.6%
Feb 2012	13.59%	+4.4%
Nov 2011	13.02%	+3.0%
Aug 2011	12.64%	-0.7%
May 2011	12.73%	+9.6%
Feb 2011	11.61%	+6.2%
Nov 2010	10.93%	+0.7%
Aug 2010	10.85%	0.0%
May 2010	10.85%	+11.3%
Feb 2010	9.75%	-21.9%
Nov 2009	12.49%	-5.9%
Aug 2009	13.28%	+44.7%
May 2009	9.18%	-30.1%
Feb 2009	13.13%	-0.8%
Nov 2008	13.24%	-3.7%
Aug 2008	13.75%	-9.5%
May 2008	15.20%	+7.5%
Feb 2008	14.14%	-4.3%
Nov 2007	14.78%	+1.9%
Aug 2007	14.51%	-10.3%

Month	Value	Change
May 2007	16.17%	+10.3%
Feb 2007	14.66%	-5.0%
Nov 2006	15.43%	-4.8%
Aug 2006	16.21%	-4.5%
May 2006	16.98%	+10.5%
Feb 2006	15.37%	-0.7%
Nov 2005	15.48%	-2.6%
Aug 2005	15.90%	-5.0%
May 2005	16.74%	+7.6%
Feb 2005	15.56%	-3.1%
Nov 2004	16.06%	-0.2%
Aug 2004	16.09%	-1.3%
May 2004	16.31%	+2.7%
Feb 2004	15.88%	-4.4%
Nov 2003	16.61%	+1.1%
Aug 2003	16.43%	+0.6%
May 2003	16.33%	+8.1%
Feb 2003	15.10%	-4.8%
Nov 2002	15.86%	+0.4%
Aug 2002	15.80%	-7.2%
May 2002	17.02%	+4.2%
Feb 2002	16.33%	-2.7%
Nov 2001	16.79%	+3.6%
Aug 2001	16.21%	-8.3%
May 2001	17.68%	+4.8%
Feb 2001	16.87%	-2.7%
Nov 2000	17.34%	+7.3%
Aug 2000	16.16%	-7.4%
May 2000	17.46%	+1.0%
Feb 2000	17.28%	-0.4%
Nov 1999	17.35%	+8.8%
Aug 1999	15.94%	+10.1%
May 1999	14.48%	-15.6%
Feb 1999	17.16%	-4.4%
Nov 1998	17.95%	+12.4%
Aug 1998	15.97%	+0.8%
May 1998	15.85%	-7.7%
Feb 1998	17.17%	-4.6%
Nov 1997	17.99%	+7.5%
Aug 1997	16.74%	+25.8%
May 1997	13.31%	-24.8%
Feb 1997	17.71%	-1.2%
Nov 1996	17.93%	+4.4%
Aug 1996	17.17%	+18.2%
May 1996	14.53%	-16.4%
Feb 1996	17.38%	-3.1%
Nov 1995	17.93%	+7.1%
Aug 1995	16.74%	-6.5%
May 1995	17.91%	+5.4%
Feb 1995	17.00%	-3.8%
Nov 1994	17.68%	+8.7%
Aug 1994	16.27%	-9.2%
May 1994	17.91%	+4.9%
Feb 1994	17.08%	-4.4%
Nov 1993	17.87%	+10.3%
Aug 1993	16.20%	-5.0%
May 1993	17.06%	+1.3%
Feb 1993	16.84%	-7.0%
Nov 1992	18.11%	+14.3%
Aug 1992	15.85%	-8.3%
May 1992	17.29%	+7.4%
Feb 1992	16.10%	-1.6%
Nov 1991	16.36%	+25.0%
Aug 1991	13.09%	-23.2%
May 1991	17.04%	+14.3%
Feb 1991	14.91%	-2.3%
Nov 1990	15.26%	+2.3%
Aug 1990	14.92%	-6.8%
May 1990	16.01%	+12.4%
Feb 1990	14.25%	+106.6%
May 1989	-217.33%	-2.4%
May 1988	-212.19%	-4.2%
May 1987	-203.56%	+7.6%
May 1986	-220.25%	-7.4%
May 1985	-205.05%	-4.5%
May 1984	-196.15%	-

FAQ

What is the current quarterly operating margin of CTAS?: As of today, CTAS quarterly operating margin is 23.65%
What is CTAS quarterly operating margin most recent change?: CTAS quarterly operating margin was up +1.85% on May 31, 2026
What is 1-year change in CTAS quarterly operating margin?: CTAS quarterly operating margin is up +5.58% year-over-year
How far is CTAS quarterly operating margin from its all-time high?: CTAS quarterly operating margin is currently at its all-time high
How does CTAS quarterly operating margin rank versus sector peers?: CTAS quarterly operating margin is higher than 90.49% of companies in Industrials sector
When is CTAS next earnings release?: The next earnings release for CTAS is on September 23, 2026

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Data Sources & References

CTAS Official Website www.cintas.com
CTAS Profile on Yahoo Finance finance.yahoo.com/quote/CTAS
CTAS Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/ctas