What is the current annual gross margin of AON?

As of today, AON annual gross margin is 0.00%

What is 1-year change in AON annual gross margin?

AON annual gross margin is down -100.00% year-over-year

What is 3-year change in AON annual gross margin?

AON annual gross margin is down -100.00% over the past 3 years

How far is AON annual gross margin from its all-time high?

AON annual gross margin is currently -100.00% below its historical high of 94.27% set on December 31, 2005

How does AON annual gross margin rank versus sector peers?

AON annual gross margin is higher than 65.80% of companies in Financial Services sector

When is AON next annual earnings release?

The next annual earnings release for AON is on January 29, 2027

What is the current quarterly gross margin of AON?

As of today, AON quarterly gross margin is 88.70%

What is AON quarterly gross margin most recent change?

AON quarterly gross margin was down -0.26% on September 30, 2026

What is 1-year change in AON quarterly gross margin?

AON quarterly gross margin is up +0.37% year-over-year

How far is AON quarterly gross margin from its all-time high?

AON quarterly gross margin is currently -5.49% below its historical high of 93.85% set on March 31, 2024

How does AON quarterly gross margin rank versus sector peers?

AON quarterly gross margin is higher than 91.04% of companies in Financial Services sector

When is AON next earnings release?

The next earnings release for AON is on January 29, 2027

Aon Plc (AON) Gross Margin History & Chart Since 1980

Annual Gross Margin

0.00%90.16%-100.00%

December 31, 2025

Summary

Current Value: As of today, AON annual gross margin is 0.00%, down -100.00% on December 31, 2025
Historical Performance: AON annual gross margin is down -100.00% over the past 3 years, down -100.00% over the past 5 years
All-Time High Comparison: AON annual gross margin is currently -100.00% below its historical high of 94.27% set on December 31, 2005
Sector Comparison: AON annual gross margin is higher than 65.80% of companies in Financial Services sector

Gross Margin Chart

beforeafter

Performance

AON Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Gross Margin	Dec 31, 25	0.00%	-100.0%	-100.0%	-100.0%	-100.0%
Quarterly Gross Margin	Sep 30, 26	88.70%	+0.4%	-2.3%	+0.7%	+155.4%
Price	Oct 30, 26	$321.67	-2.0%	+4.2%	+0.6%	+570.3%
PE Ratio	Oct 30, 26	17.62	-33.0%	-25.0%	-78.3%	-0.5%
Annual Revenue	Dec 31, 25	$17.29B	+9.8%	+38.5%	+56.4%	+103.2%
Annual Gross Profit	Dec 31, 25	$0.00	-100.0%	-100.0%	-100.0%	-100.0%
Annual Operating Margin	Dec 31, 25	27.41%	+1.0%	-8.3%	+9.4%	+60.4%
Annual Net Margin	Dec 31, 25	21.83%	+26.4%	+3.0%	+19.6%	+144.7%

Gross Margin Highs

AON Annual Gross Margin Highs Comparison
Period	High	Date	Current
3Y	91.91%	Dec 31, 23	-100.0%
5Y	91.91%	Dec 31, 23	-100.0%
All	94.27%	Dec 31, 05	-100.0%

Gross Margin Lows

AON Annual Gross Margin Lows Comparison
Period	Low	Date	Current
3Y	0.00%	Dec 31, 25	N/A
5Y	0.00%	Dec 31, 25	N/A
All	0.00%	Dec 1, 80	N/A

Gross Margin History

Year	Value	Change
2025	0.00%	-100.0%
2024	90.16%	-1.9%
2023	91.91%	+0.5%
2022	91.49%	+0.9%
2021	90.70%	+1.2%
2020	89.61%	+2.7%
2019	87.27%	+2.8%
2018	84.86%	+1.7%
2017	83.44%	-6.1%
2016	88.83%	>+9,900.0%
2015	0.00%	0.0%
2014	0.00%	-100.0%
2013	36.04%	+0.4%
2012	35.89%	-1.8%
2011	36.56%	+0.1%
2010	36.52%	+1.0%
2009	36.16%	-1.1%
2008	36.57%	-5.3%
2007	38.63%	-54.3%
2006	84.49%	-10.4%
2005	94.27%	>+9,900.0%
2004	0.00%	0.0%
2003	0.00%	0.0%

Year	Value	Change
2002	0.00%	0.0%
2001	0.00%	0.0%
2000	0.00%	0.0%
1999	0.00%	0.0%
1998	0.00%	0.0%
1997	0.00%	0.0%
1996	0.00%	0.0%
1995	0.00%	0.0%
1994	0.00%	0.0%
1993	0.00%	0.0%
1992	0.00%	0.0%
1991	0.00%	0.0%
1990	0.00%	0.0%
1989	0.00%	0.0%
1988	0.00%	0.0%
1987	0.00%	0.0%
1986	0.00%	0.0%
1985	0.00%	0.0%
1984	0.00%	0.0%
1983	0.00%	0.0%
1982	0.00%	0.0%
1981	0.00%	0.0%
1980	0.00%	-

FAQ

What is the current annual gross margin of AON?: As of today, AON annual gross margin is 0.00%
What is 1-year change in AON annual gross margin?: AON annual gross margin is down -100.00% year-over-year
What is 3-year change in AON annual gross margin?: AON annual gross margin is down -100.00% over the past 3 years
How far is AON annual gross margin from its all-time high?: AON annual gross margin is currently -100.00% below its historical high of 94.27% set on December 31, 2005
How does AON annual gross margin rank versus sector peers?: AON annual gross margin is higher than 65.80% of companies in Financial Services sector
When is AON next annual earnings release?: The next annual earnings release for AON is on January 29, 2027

Gross Margin Formula

Gross Margin = Gross Profit

Revenue × 100%

Quarterly Gross Margin

88.70%0.23%-0.26%

September 30, 2026

Summary

Current Value: As of today, AON quarterly gross margin is 88.70%, down -0.26% on September 30, 2026
Historical Performance: AON quarterly gross margin is up +0.37% year-over-year, down -2.29% over the past 3 years
All-Time High Comparison: AON quarterly gross margin is currently -5.49% below its historical high of 93.85% set on March 31, 2024
3-Year Low Comparison: AON quarterly gross margin is +0.90% above its 3-year low of 87.91% reached on September 30, 2024
Sector Comparison: AON quarterly gross margin is higher than 91.04% of companies in Financial Services sector

Performance

AON Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Gross Margin	Sep 30, 26	88.70%	-0.3%	+0.4%	-2.3%	+0.7%
Annual Gross Margin	Dec 31, 25	0.00%	–	-100.0%	-100.0%	-100.0%
Price	Oct 30, 26	$321.67	-12.3%	-2.0%	+4.2%	+0.6%
PE Ratio	Oct 30, 26	17.62	-12.8%	-33.0%	-25.0%	-78.3%
Quarterly Revenue	Sep 30, 26	$4.10B	-3.5%	+2.5%	+39.4%	+52.7%
Quarterly Gross Profit	Sep 30, 26	$3.64B	-3.7%	+2.9%	+36.2%	+53.8%
Quarterly Operating Margin	Sep 30, 26	22.01%	-7.6%	+3.7%	-5.4%	+172.1%
Quarterly Net Margin	Sep 30, 26	11.86%	-10.9%	+0.8%	-25.3%	+135.7%

Quarterly Gross Margin Highs

AON Quarterly Gross Margin Highs Comparison
Period	High	Date	Current
1Y	91.60%	Mar 31, 26	-3.2%
3Y	93.85%	Mar 31, 24	-5.5%
5Y	93.85%	Mar 31, 24	-5.5%
All	93.85%	Mar 31, 24	-5.5%

Quarterly Gross Margin Lows

AON Quarterly Gross Margin Lows Comparison
Period	Low	Date	Current
1Y	88.37%	N/A	+0.4%
3Y	87.91%	Sep 30, 24	+0.9%
5Y	87.91%	Sep 30, 24	+0.9%
All	0.00%	Mar 31, 95	N/A

Quarterly Gross Margin History

Month	Value	Change
Sep 2026	88.70%	-0.3%
Jun 2026	88.93%	-2.9%
Mar 2026	91.60%	+3.0%
Dec 2025	88.97%	+0.7%
Sep 2025	88.37%	-0.7%
Jun 2025	88.95%	-1.4%
Mar 2025	90.25%	+1.5%
Dec 2024	88.90%	+1.1%
Sep 2024	87.91%	-2.0%
Jun 2024	89.68%	-4.4%
Mar 2024	93.85%	+2.2%
Dec 2023	91.87%	+1.2%
Sep 2023	90.78%	-1.2%
Jun 2023	91.84%	-1.1%
Mar 2023	92.86%	+1.7%
Dec 2022	91.34%	+1.9%
Sep 2022	89.68%	-2.0%
Jun 2022	91.47%	-1.6%
Mar 2022	92.95%	+1.9%
Dec 2021	91.20%	+3.5%
Sep 2021	88.08%	-2.9%
Jun 2021	90.71%	-1.7%
Mar 2021	92.26%	+1.7%
Dec 2020	90.73%	+2.2%
Sep 2020	88.79%	+0.0%
Jun 2020	88.76%	-1.2%
Mar 2020	89.86%	+3.0%
Dec 2019	87.27%	+2.0%
Sep 2019	85.54%	-1.2%
Jun 2019	86.58%	-2.9%
Mar 2019	89.15%	+2.6%
Dec 2018	86.93%	+2.6%
Sep 2018	84.70%	+8.1%
Jun 2018	78.36%	-11.4%
Mar 2018	88.43%	+0.8%
Dec 2017	87.75%	+2.5%
Sep 2017	85.59%	+21.6%
Jun 2017	70.40%	-20.7%
Mar 2017	88.73%	-0.9%
Dec 2016	89.58%	+1.9%
Sep 2016	87.92%	-0.4%
Jun 2016	88.25%	-1.3%
Mar 2016	89.41%	>+9,900.0%
Dec 2015	0.00%	0.0%
Sep 2015	0.00%	0.0%
Jun 2015	0.00%	0.0%
Mar 2015	0.00%	0.0%
Dec 2014	0.00%	0.0%
Sep 2014	0.00%	0.0%
Jun 2014	0.00%	0.0%
Mar 2014	0.00%	-100.0%
Dec 2013	37.39%	+5.0%
Sep 2013	35.61%	+0.6%
Jun 2013	35.41%	-0.1%
Mar 2013	35.43%	-4.0%
Dec 2012	36.90%	+5.0%
Sep 2012	35.14%	-2.4%
Jun 2012	36.01%	-0.4%
Mar 2012	36.16%	-4.2%
Dec 2011	37.74%	+8.7%
Sep 2011	34.73%	-7.0%
Jun 2011	37.33%	+0.5%
Mar 2011	37.13%	+1.3%
Dec 2010	36.65%	-4.3%

Month	Value	Change
Sep 2010	38.31%	+8.7%
Jun 2010	35.25%	-1.8%
Mar 2010	35.91%	-4.5%
Dec 2009	37.59%	+6.1%
Sep 2009	35.44%	+0.3%
Jun 2009	35.32%	-15.4%
Mar 2009	41.76%	+15.2%
Dec 2008	36.24%	+1.4%
Sep 2008	35.75%	-6.5%
Jun 2008	38.24%	+4.8%
Mar 2008	36.50%	>+9,900.0%
Dec 2007	0.00%	-100.0%
Sep 2007	34.69%	-1.6%
Jun 2007	35.25%	-1.9%
Mar 2007	35.95%	-58.0%
Dec 2006	85.54%	+5.3%
Sep 2006	81.27%	-3.8%
Jun 2006	84.52%	+4.2%
Mar 2006	81.13%	-1.6%
Dec 2005	82.46%	+3.4%
Sep 2005	79.78%	-3.2%
Jun 2005	82.43%	+0.9%
Mar 2005	81.66%	>+9,900.0%
Dec 2004	0.00%	0.0%
Sep 2004	0.00%	0.0%
Jun 2004	0.00%	0.0%
Mar 2004	0.00%	0.0%
Dec 2003	0.00%	0.0%
Sep 2003	0.00%	0.0%
Jun 2003	0.00%	0.0%
Mar 2003	0.00%	0.0%
Dec 2002	0.00%	0.0%
Sep 2002	0.00%	0.0%
Jun 2002	0.00%	0.0%
Mar 2002	0.00%	0.0%
Dec 2001	0.00%	0.0%
Sep 2001	0.00%	0.0%
Jun 2001	0.00%	0.0%
Mar 2001	0.00%	0.0%
Dec 2000	0.00%	0.0%
Sep 2000	0.00%	0.0%
Jun 2000	0.00%	0.0%
Mar 2000	0.00%	0.0%
Dec 1999	0.00%	0.0%
Sep 1999	0.00%	0.0%
Jun 1999	0.00%	0.0%
Mar 1999	0.00%	0.0%
Dec 1998	0.00%	0.0%
Sep 1998	0.00%	0.0%
Jun 1998	0.00%	0.0%
Mar 1998	0.00%	0.0%
Dec 1997	0.00%	0.0%
Sep 1997	0.00%	0.0%
Jun 1997	0.00%	0.0%
Mar 1997	0.00%	0.0%
Dec 1996	0.00%	0.0%
Sep 1996	0.00%	0.0%
Jun 1996	0.00%	0.0%
Mar 1996	0.00%	0.0%
Dec 1995	0.00%	0.0%
Sep 1995	0.00%	0.0%
Jun 1995	0.00%	0.0%
Mar 1995	0.00%	-

FAQ

What is the current quarterly gross margin of AON?: As of today, AON quarterly gross margin is 88.70%
What is AON quarterly gross margin most recent change?: AON quarterly gross margin was down -0.26% on September 30, 2026
What is 1-year change in AON quarterly gross margin?: AON quarterly gross margin is up +0.37% year-over-year
How far is AON quarterly gross margin from its all-time high?: AON quarterly gross margin is currently -5.49% below its historical high of 93.85% set on March 31, 2024
How does AON quarterly gross margin rank versus sector peers?: AON quarterly gross margin is higher than 91.04% of companies in Financial Services sector
When is AON next earnings release?: The next earnings release for AON is on January 29, 2027

Gross Margin Formula

Gross Margin = Gross Profit

Revenue × 100%

Data Sources & References

AON Official Website www.aon.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/315293/000162828026004273/0001628280-26-004273-index.htm
AON Profile on Yahoo Finance finance.yahoo.com/quote/AON
AON Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/aon