What is the current 10-day volatility of AON?

As of today, AON 10-day volatility is 44.41%

What 10-day volatility category does AON fall into?

Based on its current 10-day historical volatility, AON falls into the high volatility category

What is AON 10-day volatility 1-year high?

AON 10-day volatility reached a 1-year high of 56.03% on February 11, 2026

What is AON 10-day volatility 1-year low?

AON 10-day volatility reached a 1-year low of 9.28% on October 7, 2025

What is the current 1-month volatility of AON?

As of today, AON 1-month volatility is 32.44%

What 1-month volatility category does AON fall into?

Based on its current 1-month historical volatility, AON falls into the moderate volatility category

What is AON 1-month volatility 1-year high?

AON 1-month volatility reached a 1-year high of 43.52% on February 13, 2026

What is AON 1-month volatility 1-year low?

AON 1-month volatility reached a 1-year low of 13.26% on December 8, 2025

What is the current 3-month volatility of AON?

As of today, AON 3-month volatility is 32.02%

What 3-month volatility category does AON fall into?

Based on its current 3-month historical volatility, AON falls into the moderate volatility category

What is AON 3-month volatility 1-year high?

AON 3-month volatility reached a 1-year high of 33.78% on April 16, 2026

What is AON 3-month volatility 1-year low?

AON 3-month volatility reached a 1-year low of 17.27% on January 16, 2026

What is the current 1-year volatility of AON?

As of today, AON 1-year volatility is 26.62%

What 1-year volatility category does AON fall into?

Based on its current 1-year historical volatility, AON falls into the moderate volatility category

What is AON 1-year volatility 1-year high?

AON 1-year volatility reached a 1-year high of 26.62% on August 31, 2026

What is AON 1-year volatility 1-year low?

AON 1-year volatility reached a 1-year low of 21.44% on September 4, 2025

Aon Plc (AON) Stock Volatility History & Chart Since 1980

10-Day

44.41%

August 31, 2026

Summary

Current Value: As of today, AON 10-day volatility is 44.41%, up +114.54% on August 31, 2026
Value Category: Based on its current 10-day historical volatility, AON falls into the high volatility category
1-Year High: AON 10-day volatility reached a 1-year high of 56.03% on February 11, 2026
1-Year Low: AON 10-day volatility reached a 1-year low of 9.28% on October 7, 2025

10-Day Volatility Chart

Performance

AON Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Aug 31, 26	44.41%	+114.5%	+35.4%	+108.2%	+306.3%	+231.4%	+403.5%	+395.1%
1-Month Volatility	Aug 31, 26	32.44%	+72.3%	-0.8%	+58.7%	+100.4%	+115.1%	+114.3%	+123.7%
3-Month Volatility	Aug 31, 26	32.02%	+16.9%	+14.1%	+23.8%	+72.7%	+52.1%	+78.4%	+24.4%
1-Year Volatility	Aug 31, 26	26.62%	+4.9%	+5.2%	+12.0%	+22.6%	+24.0%	+26.2%	+10.5%
14-Day RSI	Aug 31, 26	29.81	-34.6%	-43.7%	-41.4%	-43.0%	-39.9%	-51.1%	-61.8%
Beta	Aug 31, 26	-0.24	+7.7%	-4.3%	-100.0%	-175.0%	-161.5%	-132.9%	-131.2%
ATR	Aug 31, 26	$9.27	+20.0%	-9.6%	+23.0%	+81.7%	+62.4%	+82.2%	+105.7%
Price	Sep 1, 26	$326.29	+1.5%	-9.5%	+1.8%	-7.5%	-11.1%	-2.4%	+13.1%
200-Day SMA	Aug 31, 26	$337.68	-0.0%	+0.3%	-0.9%	-6.1%	-8.8%	+6.3%	+44.3%
50-Day SMA	Aug 31, 26	$351.76	-0.0%	+3.3%	+9.5%	+1.4%	-2.6%	+6.6%	+37.5%
20-Day SMA	Aug 31, 26	$352.84	-0.6%	-2.6%	+11.2%	+0.5%	-4.1%	+8.7%	+27.4%

10-Day Volatility History

Date	Value	Change
Sep 1, 2026	44.41%	+306.3%
Dec 31, 2025	10.93%	-22.3%
Dec 31, 2024	14.07%	-59.3%
Dec 31, 2023	34.54%	+107.3%
Dec 31, 2022	16.66%	+9.2%
Dec 31, 2021	15.26%	-38.2%
Dec 31, 2020	24.71%	+107.8%
Dec 31, 2019	11.89%	-61.2%
Dec 31, 2018	30.64%	+143.0%
Dec 31, 2017	12.61%	+112.6%
Dec 31, 2016	5.93%	-77.5%
Dec 31, 2015	26.34%	+115.2%
Dec 31, 2014	12.24%	-23.4%
Dec 31, 2013	15.98%	+24.2%
Dec 31, 2012	12.87%	-28.9%
Dec 31, 2011	18.11%	+117.7%
Dec 31, 2010	8.32%	-37.0%
Dec 31, 2009	13.20%	-31.8%
Dec 31, 2008	19.36%	-10.7%
Dec 31, 2007	21.67%	+232.9%
Dec 31, 2006	6.51%	-41.0%
Dec 31, 2005	11.03%	-8.4%
Dec 31, 2004	12.04%	-30.0%
Dec 31, 2003	17.19%	-8.9%

Date	Value	Change
Dec 31, 2002	18.86%	+2.3%
Dec 31, 2001	18.44%	-50.8%
Dec 31, 2000	37.49%	-15.8%
Dec 31, 1999	44.51%	+36.3%
Dec 31, 1998	32.66%	+57.2%
Dec 31, 1997	20.78%	+31.3%
Dec 31, 1996	15.83%	-28.4%
Dec 31, 1995	22.12%	+10.0%
Dec 31, 1994	20.11%	+62.0%
Dec 31, 1993	12.41%	-32.3%
Dec 31, 1992	18.33%	-17.2%
Dec 31, 1991	22.13%	+19.0%
Dec 31, 1990	18.60%	-60.7%
Dec 31, 1989	47.31%	+150.6%
Dec 31, 1988	18.88%	-45.6%
Dec 31, 1987	34.73%	+72.3%
Dec 31, 1986	20.16%	+71.4%
Dec 31, 1985	11.76%	-32.6%
Dec 31, 1984	17.46%	-26.6%
Dec 31, 1983	23.80%	-33.7%
Dec 31, 1982	35.92%	+122.1%
Dec 31, 1981	16.17%	-45.4%
Dec 31, 1980	29.63%	-

FAQ

What is the current 10-day volatility of AON?: As of today, AON 10-day volatility is 44.41%
What 10-day volatility category does AON fall into?: Based on its current 10-day historical volatility, AON falls into the high volatility category
What is AON 10-day volatility 1-year high?: AON 10-day volatility reached a 1-year high of 56.03% on February 11, 2026
What is AON 10-day volatility 1-year low?: AON 10-day volatility reached a 1-year low of 9.28% on October 7, 2025

1-Month

32.44%

August 31, 2026

Summary

Current Value: As of today, AON 1-month volatility is 32.44%, up +72.28% on August 31, 2026
Value Category: Based on its current 1-month historical volatility, AON falls into the moderate volatility category
1-Year High: AON 1-month volatility reached a 1-year high of 43.52% on February 13, 2026
1-Year Low: AON 1-month volatility reached a 1-year low of 13.26% on December 8, 2025

Performance

AON Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Aug 31, 26	32.44%	+72.3%	-0.8%	+58.7%	+100.4%	+115.1%	+114.3%	+123.7%
10-Day Volatility	Aug 31, 26	44.41%	+114.5%	+35.4%	+108.2%	+306.3%	+231.4%	+403.5%	+395.1%
3-Month Volatility	Aug 31, 26	32.02%	+16.9%	+14.1%	+23.8%	+72.7%	+52.1%	+78.4%	+24.4%
1-Year Volatility	Aug 31, 26	26.62%	+4.9%	+5.2%	+12.0%	+22.6%	+24.0%	+26.2%	+10.5%
14-Day RSI	Aug 31, 26	29.81	-34.6%	-43.7%	-41.4%	-43.0%	-39.9%	-51.1%	-61.8%
Beta	Aug 31, 26	-0.24	+7.7%	-4.3%	-100.0%	-175.0%	-161.5%	-132.9%	-131.2%
ATR	Aug 31, 26	$9.27	+20.0%	-9.6%	+23.0%	+81.7%	+62.4%	+82.2%	+105.7%
Price	Sep 1, 26	$326.29	+1.5%	-9.5%	+1.8%	-7.5%	-11.1%	-2.4%	+13.1%
200-Day SMA	Aug 31, 26	$337.68	-0.0%	+0.3%	-0.9%	-6.1%	-8.8%	+6.3%	+44.3%
50-Day SMA	Aug 31, 26	$351.76	-0.0%	+3.3%	+9.5%	+1.4%	-2.6%	+6.6%	+37.5%
20-Day SMA	Aug 31, 26	$352.84	-0.6%	-2.6%	+11.2%	+0.5%	-4.1%	+8.7%	+27.4%

1-Month Volatility History

Date	Value	Change
Sep 1, 2026	32.44%	+102.2%
Dec 31, 2025	16.04%	+9.5%
Dec 31, 2024	14.65%	-54.3%
Dec 31, 2023	32.06%	+102.0%
Dec 31, 2022	15.87%	-9.3%
Dec 31, 2021	17.49%	-23.4%
Dec 31, 2020	22.83%	+103.3%
Dec 31, 2019	11.23%	-51.0%
Dec 31, 2018	22.93%	+76.7%
Dec 31, 2017	12.98%	-16.7%
Dec 31, 2016	15.58%	-38.1%
Dec 31, 2015	25.18%	+73.3%
Dec 31, 2014	14.53%	+5.5%
Dec 31, 2013	13.77%	+49.8%
Dec 31, 2012	9.19%	-47.6%
Dec 31, 2011	17.54%	+24.2%
Dec 31, 2010	14.12%	+30.7%
Dec 31, 2009	10.80%	-72.4%
Dec 31, 2008	39.07%	+67.0%
Dec 31, 2007	23.40%	+98.5%
Dec 31, 2006	11.79%	-23.8%
Dec 31, 2005	15.48%	-16.1%
Dec 31, 2004	18.45%	-1.2%
Dec 31, 2003	18.67%	-17.0%

Date	Value	Change
Dec 31, 2002	22.50%	+16.1%
Dec 31, 2001	19.38%	-44.5%
Dec 31, 2000	34.95%	-6.3%
Dec 31, 1999	37.30%	+40.7%
Dec 31, 1998	26.51%	+61.4%
Dec 31, 1997	16.42%	-37.6%
Dec 31, 1996	26.32%	+24.3%
Dec 31, 1995	21.17%	+33.0%
Dec 31, 1994	15.92%	+18.0%
Dec 31, 1993	13.49%	-9.9%
Dec 31, 1992	14.98%	-26.9%
Dec 31, 1991	20.50%	-0.6%
Dec 31, 1990	20.62%	-45.5%
Dec 31, 1989	37.86%	+87.8%
Dec 31, 1988	20.16%	-57.1%
Dec 31, 1987	46.95%	+178.1%
Dec 31, 1986	16.88%	+34.6%
Dec 31, 1985	12.54%	-23.1%
Dec 31, 1984	16.31%	-27.3%
Dec 31, 1983	22.43%	-20.0%
Dec 31, 1982	28.05%	+31.6%
Dec 31, 1981	21.31%	-12.9%
Dec 31, 1980	24.48%	-

FAQ

What is the current 1-month volatility of AON?: As of today, AON 1-month volatility is 32.44%
What 1-month volatility category does AON fall into?: Based on its current 1-month historical volatility, AON falls into the moderate volatility category
What is AON 1-month volatility 1-year high?: AON 1-month volatility reached a 1-year high of 43.52% on February 13, 2026
What is AON 1-month volatility 1-year low?: AON 1-month volatility reached a 1-year low of 13.26% on December 8, 2025

3-Month

32.02%

August 31, 2026

Summary

Current Value: As of today, AON 3-month volatility is 32.02%, up +16.90% on August 31, 2026
Value Category: Based on its current 3-month historical volatility, AON falls into the moderate volatility category
1-Year High: AON 3-month volatility reached a 1-year high of 33.78% on April 16, 2026
1-Year Low: AON 3-month volatility reached a 1-year low of 17.27% on January 16, 2026

Performance

AON Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Aug 31, 26	32.02%	+16.9%	+14.1%	+23.8%	+72.7%	+52.1%	+78.4%	+24.4%
10-Day Volatility	Aug 31, 26	44.41%	+114.5%	+35.4%	+108.2%	+306.3%	+231.4%	+403.5%	+395.1%
1-Month Volatility	Aug 31, 26	32.44%	+72.3%	-0.8%	+58.7%	+100.4%	+115.1%	+114.3%	+123.7%
1-Year Volatility	Aug 31, 26	26.62%	+4.9%	+5.2%	+12.0%	+22.6%	+24.0%	+26.2%	+10.5%
14-Day RSI	Aug 31, 26	29.81	-34.6%	-43.7%	-41.4%	-43.0%	-39.9%	-51.1%	-61.8%
Beta	Aug 31, 26	-0.24	+7.7%	-4.3%	-100.0%	-175.0%	-161.5%	-132.9%	-131.2%
ATR	Aug 31, 26	$9.27	+20.0%	-9.6%	+23.0%	+81.7%	+62.4%	+82.2%	+105.7%
Price	Sep 1, 26	$326.29	+1.5%	-9.5%	+1.8%	-7.5%	-11.1%	-2.4%	+13.1%
200-Day SMA	Aug 31, 26	$337.68	-0.0%	+0.3%	-0.9%	-6.1%	-8.8%	+6.3%	+44.3%
50-Day SMA	Aug 31, 26	$351.76	-0.0%	+3.3%	+9.5%	+1.4%	-2.6%	+6.6%	+37.5%
20-Day SMA	Aug 31, 26	$352.84	-0.6%	-2.6%	+11.2%	+0.5%	-4.1%	+8.7%	+27.4%

3-Month Volatility History

Date	Value	Change
Sep 1, 2026	32.02%	+73.1%
Dec 31, 2025	18.50%	-3.6%
Dec 31, 2024	19.20%	-20.6%
Dec 31, 2023	24.18%	-9.5%
Dec 31, 2022	26.73%	+29.2%
Dec 31, 2021	20.69%	-16.9%
Dec 31, 2020	24.90%	+57.7%
Dec 31, 2019	15.79%	-28.5%
Dec 31, 2018	22.07%	+51.2%
Dec 31, 2017	14.60%	-13.4%
Dec 31, 2016	16.86%	-12.1%
Dec 31, 2015	19.18%	+13.5%
Dec 31, 2014	16.90%	+2.1%
Dec 31, 2013	16.55%	+20.5%
Dec 31, 2012	13.73%	-53.5%
Dec 31, 2011	29.55%	+92.1%
Dec 31, 2010	15.38%	-25.3%
Dec 31, 2009	20.59%	-61.9%
Dec 31, 2008	54.09%	+115.5%
Dec 31, 2007	25.10%	+59.7%
Dec 31, 2006	15.72%	-18.9%
Dec 31, 2005	19.38%	-60.1%
Dec 31, 2004	48.54%	+137.7%
Dec 31, 2003	20.42%	-60.9%

Date	Value	Change
Dec 31, 2002	52.22%	+54.2%
Dec 31, 2001	33.87%	-38.3%
Dec 31, 2000	54.93%	+12.9%
Dec 31, 1999	48.64%	+6.8%
Dec 31, 1998	45.55%	+73.3%
Dec 31, 1997	26.28%	+41.8%
Dec 31, 1996	18.53%	-13.7%
Dec 31, 1995	21.46%	-3.2%
Dec 31, 1994	22.18%	+57.5%
Dec 31, 1993	14.08%	-20.6%
Dec 31, 1992	17.73%	-17.8%
Dec 31, 1991	21.57%	-34.7%
Dec 31, 1990	33.05%	+21.0%
Dec 31, 1989	27.31%	+54.3%
Dec 31, 1988	17.70%	-70.0%
Dec 31, 1987	58.97%	+228.2%
Dec 31, 1986	17.97%	-6.3%
Dec 31, 1985	19.18%	+0.4%
Dec 31, 1984	19.11%	-28.7%
Dec 31, 1983	26.79%	-31.3%
Dec 31, 1982	38.99%	+37.2%
Dec 31, 1981	28.41%	0.0%
Dec 31, 1980	28.41%	-

FAQ

What is the current 3-month volatility of AON?: As of today, AON 3-month volatility is 32.02%
What 3-month volatility category does AON fall into?: Based on its current 3-month historical volatility, AON falls into the moderate volatility category
What is AON 3-month volatility 1-year high?: AON 3-month volatility reached a 1-year high of 33.78% on April 16, 2026
What is AON 3-month volatility 1-year low?: AON 3-month volatility reached a 1-year low of 17.27% on January 16, 2026

1-Year

26.62%

August 31, 2026

Summary

Current Value: As of today, AON 1-year volatility is 26.62%, up +4.93% on August 31, 2026
Value Category: Based on its current 1-year historical volatility, AON falls into the moderate volatility category
1-Year High: AON 1-year volatility reached a 1-year high of 26.62% on August 31, 2026
1-Year Low: AON 1-year volatility reached a 1-year low of 21.44% on September 4, 2025

Performance

AON Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Aug 31, 26	26.62%	+4.9%	+5.2%	+12.0%	+22.6%	+24.0%	+26.2%	+10.5%
10-Day Volatility	Aug 31, 26	44.41%	+114.5%	+35.4%	+108.2%	+306.3%	+231.4%	+403.5%	+395.1%
1-Month Volatility	Aug 31, 26	32.44%	+72.3%	-0.8%	+58.7%	+100.4%	+115.1%	+114.3%	+123.7%
3-Month Volatility	Aug 31, 26	32.02%	+16.9%	+14.1%	+23.8%	+72.7%	+52.1%	+78.4%	+24.4%
1-Year Volatility	Aug 31, 26	26.62%	+4.9%	+5.2%	+12.0%	+22.6%	+24.0%	+26.2%	+10.5%
14-Day RSI	Aug 31, 26	29.81	-34.6%	-43.7%	-41.4%	-43.0%	-39.9%	-51.1%	-61.8%
Beta	Aug 31, 26	-0.24	+7.7%	-4.3%	-100.0%	-175.0%	-161.5%	-132.9%	-131.2%
ATR	Aug 31, 26	$9.27	+20.0%	-9.6%	+23.0%	+81.7%	+62.4%	+82.2%	+105.7%
Price	Sep 1, 26	$326.29	+1.5%	-9.5%	+1.8%	-7.5%	-11.1%	-2.4%	+13.1%
200-Day SMA	Aug 31, 26	$337.68	-0.0%	+0.3%	-0.9%	-6.1%	-8.8%	+6.3%	+44.3%
50-Day SMA	Aug 31, 26	$351.76	-0.0%	+3.3%	+9.5%	+1.4%	-2.6%	+6.6%	+37.5%
20-Day SMA	Aug 31, 26	$352.84	-0.6%	-2.6%	+11.2%	+0.5%	-4.1%	+8.7%	+27.4%

1-Year Volatility History

Date	Value	Change
Sep 1, 2026	26.62%	+22.6%
Dec 31, 2025	21.71%	+11.6%
Dec 31, 2024	19.46%	-1.7%
Dec 31, 2023	19.79%	-29.5%
Dec 31, 2022	28.06%	+25.2%
Dec 31, 2021	22.41%	-43.7%
Dec 31, 2020	39.79%	+100.3%
Dec 31, 2019	19.87%	+11.2%
Dec 31, 2018	17.87%	+46.4%
Dec 31, 2017	12.21%	-28.2%
Dec 31, 2016	17.01%	-9.0%
Dec 31, 2015	18.70%	+6.0%
Dec 31, 2014	17.64%	-1.5%
Dec 31, 2013	17.91%	+6.9%
Dec 31, 2012	16.75%	-38.9%
Dec 31, 2011	27.43%	+38.2%
Dec 31, 2010	19.85%	-38.6%
Dec 31, 2009	32.32%	-10.9%
Dec 31, 2008	36.29%	+68.9%
Dec 31, 2007	21.48%	-10.8%
Dec 31, 2006	24.07%	-24.1%
Dec 31, 2005	31.70%	+7.4%
Dec 31, 2004	29.52%	-0.1%
Dec 31, 2003	29.55%	-44.1%

Date	Value	Change
Dec 31, 2002	52.85%	+75.9%
Dec 31, 2001	30.05%	-52.2%
Dec 31, 2000	62.87%	+85.7%
Dec 31, 1999	33.85%	+7.6%
Dec 31, 1998	31.47%	+39.4%
Dec 31, 1997	22.58%	+20.7%
Dec 31, 1996	18.71%	+6.5%
Dec 31, 1995	17.57%	-8.3%
Dec 31, 1994	19.17%	+12.0%
Dec 31, 1993	17.12%	-11.2%
Dec 31, 1992	19.28%	-16.5%
Dec 31, 1991	23.10%	-14.3%
Dec 31, 1990	26.96%	+26.8%
Dec 31, 1989	21.27%	-12.0%
Dec 31, 1988	24.18%	-32.9%
Dec 31, 1987	36.03%	+67.7%
Dec 31, 1986	21.49%	+16.8%
Dec 31, 1985	18.40%	-36.1%
Dec 31, 1984	28.81%	+0.3%
Dec 31, 1983	28.73%	-19.2%
Dec 31, 1982	35.54%	+19.1%
Dec 31, 1981	29.84%	+18.6%
Dec 31, 1980	25.15%	-

FAQ

What is the current 1-year volatility of AON?: As of today, AON 1-year volatility is 26.62%
What 1-year volatility category does AON fall into?: Based on its current 1-year historical volatility, AON falls into the moderate volatility category
What is AON 1-year volatility 1-year high?: AON 1-year volatility reached a 1-year high of 26.62% on August 31, 2026
What is AON 1-year volatility 1-year low?: AON 1-year volatility reached a 1-year low of 21.44% on September 4, 2025

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