What is the current 10-day volatility of MRSH?

As of today, MRSH 10-day volatility is 16.87%

What 10-day volatility category does MRSH fall into?

Based on its current 10-day historical volatility, MRSH falls into the low volatility category

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

MRSH 10-day volatility reached a 1-year high of 52.15% on February 11, 2026

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

MRSH 10-day volatility reached a 1-year low of 6.12% on December 10, 2025

What is the current 1-month volatility of MRSH?

As of today, MRSH 1-month volatility is 29.55%

What 1-month volatility category does MRSH fall into?

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

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

MRSH 1-month volatility reached a 1-year high of 38.65% on February 13, 2026

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

MRSH 1-month volatility reached a 1-year low of 9.58% on December 30, 2025

What is the current 3-month volatility of MRSH?

As of today, MRSH 3-month volatility is 28.44%

What 3-month volatility category does MRSH fall into?

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

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

MRSH 3-month volatility reached a 1-year high of 32.31% on April 24, 2026

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

MRSH 3-month volatility reached a 1-year low of 14.72% on September 10, 2025

What is the current 1-year volatility of MRSH?

As of today, MRSH 1-year volatility is 25.95%

What 1-year volatility category does MRSH fall into?

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

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

MRSH 1-year volatility reached a 1-year high of 25.96% on August 7, 2026

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

MRSH 1-year volatility reached a 1-year low of 18.11% on September 9, 2025

MRSH Stock Volatility History & Chart Since 1976

10-Day

16.87%

August 20, 2026

Summary

Current Value: As of today, MRSH 10-day volatility is 16.87%, down -3.43% on August 20, 2026
Value Category: Based on its current 10-day historical volatility, MRSH falls into the low volatility category
1-Year High: MRSH 10-day volatility reached a 1-year high of 52.15% on February 11, 2026
1-Year Low: MRSH 10-day volatility reached a 1-year low of 6.12% on December 10, 2025

10-Day Volatility Chart

Performance

MRSH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Aug 20, 26	16.87%	-3.4%	-31.4%	-37.8%	+90.8%	+7.3%	+28.4%	+57.4%
1-Month Volatility	Aug 20, 26	29.55%	+2.2%	-8.7%	+20.7%	+188.3%	+73.1%	+140.4%	+99.0%
3-Month Volatility	Aug 20, 26	28.44%	-0.2%	+4.9%	+4.1%	+24.9%	+70.7%	+120.0%	+104.0%
1-Year Volatility	Aug 20, 26	25.95%	+0.2%	+4.1%	+12.2%	+27.3%	+42.7%	+25.9%	+43.1%
14-Day RSI	Aug 20, 26	57.22	+2.6%	-9.4%	+31.2%	+11.8%	-1.1%	+17.0%	-18.5%
Beta	Aug 20, 26	-0.29	0.0%	-38.1%	-3000.0%	-187.9%	-178.4%	-135.4%	-140.8%
ATR	Aug 20, 26	$4.27	-0.1%	+0.5%	+3.0%	+82.9%	+27.7%	+69.9%	+112.9%
Price	Aug 20, 26	$190.21	+0.5%	+4.5%	+16.4%	+2.5%	-9.9%	+0.7%	+22.6%
200-Day SMA	Aug 20, 26	$177.38	+0.0%	-0.4%	-4.1%	-14.5%	-20.1%	+2.0%	+40.0%
50-Day SMA	Aug 20, 26	$179.35	+0.3%	+7.0%	+5.1%	-2.1%	-14.9%	-3.9%	+24.2%
20-Day SMA	Aug 20, 26	$189.66	+0.4%	+9.1%	+14.3%	+2.5%	-7.4%	-0.5%	+26.2%

10-Day Volatility History

Date	Value	Change
Aug 20, 2026	16.87%	+90.8%
Dec 31, 2025	8.84%	-19.6%
Dec 31, 2024	10.99%	-36.6%
Dec 31, 2023	17.33%	-5.0%
Dec 31, 2022	18.24%	+47.7%
Dec 31, 2021	12.35%	-34.0%
Dec 31, 2020	18.72%	+155.7%
Dec 31, 2019	7.32%	-73.6%
Dec 31, 2018	27.74%	+126.3%
Dec 31, 2017	12.26%	+140.4%
Dec 31, 2016	5.10%	-76.4%
Dec 31, 2015	21.58%	+48.9%
Dec 31, 2014	14.49%	+49.5%
Dec 31, 2013	9.69%	-22.0%
Dec 31, 2012	12.42%	-27.6%
Dec 31, 2011	17.15%	+190.2%
Dec 31, 2010	5.91%	-32.0%
Dec 31, 2009	8.69%	-69.9%
Dec 31, 2008	28.88%	+0.3%
Dec 31, 2007	28.79%	+112.0%
Dec 31, 2006	13.58%	-20.4%
Dec 31, 2005	17.07%	+42.3%
Dec 31, 2004	12.00%	-34.3%
Dec 31, 2003	18.26%	+29.4%
Dec 31, 2002	14.11%	-26.7%
Dec 31, 2001	19.25%	-63.8%

Date	Value	Change
Dec 31, 2000	53.19%	+16.4%
Dec 31, 1999	45.69%	+85.4%
Dec 31, 1998	24.65%	-21.8%
Dec 31, 1997	31.52%	+84.1%
Dec 31, 1996	17.12%	+188.2%
Dec 31, 1995	5.94%	-49.8%
Dec 31, 1994	11.83%	-4.7%
Dec 31, 1993	12.41%	-16.9%
Dec 31, 1992	14.94%	-22.9%
Dec 31, 1991	19.39%	-2.4%
Dec 31, 1990	19.86%	-47.4%
Dec 31, 1989	37.77%	+99.5%
Dec 31, 1988	18.93%	-38.7%
Dec 31, 1987	30.90%	+110.1%
Dec 31, 1986	14.71%	+65.3%
Dec 31, 1985	8.90%	-65.9%
Dec 31, 1984	26.12%	+45.0%
Dec 31, 1983	18.01%	-36.4%
Dec 31, 1982	28.32%	+16.2%
Dec 31, 1981	24.38%	+72.1%
Dec 31, 1980	14.17%	-16.0%
Dec 31, 1979	16.87%	+4.3%
Dec 31, 1978	16.17%	+5.3%
Dec 31, 1977	15.35%	+26.7%
Dec 31, 1976	12.12%	-

FAQ

What is the current 10-day volatility of MRSH?: As of today, MRSH 10-day volatility is 16.87%
What 10-day volatility category does MRSH fall into?: Based on its current 10-day historical volatility, MRSH falls into the low volatility category
What is MRSH 10-day volatility 1-year high?: MRSH 10-day volatility reached a 1-year high of 52.15% on February 11, 2026
What is MRSH 10-day volatility 1-year low?: MRSH 10-day volatility reached a 1-year low of 6.12% on December 10, 2025

1-Month

29.55%

August 20, 2026

Summary

Current Value: As of today, MRSH 1-month volatility is 29.55%, up +2.21% on August 20, 2026
Value Category: Based on its current 1-month historical volatility, MRSH falls into the moderate volatility category
1-Year High: MRSH 1-month volatility reached a 1-year high of 38.65% on February 13, 2026
1-Year Low: MRSH 1-month volatility reached a 1-year low of 9.58% on December 30, 2025

Performance

MRSH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Aug 20, 26	29.55%	+2.2%	-8.7%	+20.7%	+188.3%	+73.1%	+140.4%	+99.0%
10-Day Volatility	Aug 20, 26	16.87%	-3.4%	-31.4%	-37.8%	+90.8%	+7.3%	+28.4%	+57.4%
3-Month Volatility	Aug 20, 26	28.44%	-0.2%	+4.9%	+4.1%	+24.9%	+70.7%	+120.0%	+104.0%
1-Year Volatility	Aug 20, 26	25.95%	+0.2%	+4.1%	+12.2%	+27.3%	+42.7%	+25.9%	+43.1%
14-Day RSI	Aug 20, 26	57.22	+2.6%	-9.4%	+31.2%	+11.8%	-1.1%	+17.0%	-18.5%
Beta	Aug 20, 26	-0.29	0.0%	-38.1%	-3000.0%	-187.9%	-178.4%	-135.4%	-140.8%
ATR	Aug 20, 26	$4.27	-0.1%	+0.5%	+3.0%	+82.9%	+27.7%	+69.9%	+112.9%
Price	Aug 20, 26	$190.21	+0.5%	+4.5%	+16.4%	+2.5%	-9.9%	+0.7%	+22.6%
200-Day SMA	Aug 20, 26	$177.38	+0.0%	-0.4%	-4.1%	-14.5%	-20.1%	+2.0%	+40.0%
50-Day SMA	Aug 20, 26	$179.35	+0.3%	+7.0%	+5.1%	-2.1%	-14.9%	-3.9%	+24.2%
20-Day SMA	Aug 20, 26	$189.66	+0.4%	+9.1%	+14.3%	+2.5%	-7.4%	-0.5%	+26.2%

1-Month Volatility History

Date	Value	Change
Aug 20, 2026	28.92%	+188.0%
Dec 31, 2025	10.04%	-31.2%
Dec 31, 2024	14.60%	-38.7%
Dec 31, 2023	23.80%	+43.0%
Dec 31, 2022	16.64%	+5.9%
Dec 31, 2021	15.71%	+1.4%
Dec 31, 2020	15.50%	+57.0%
Dec 31, 2019	9.87%	-56.8%
Dec 31, 2018	22.84%	+67.1%
Dec 31, 2017	13.67%	+87.3%
Dec 31, 2016	7.30%	-68.4%
Dec 31, 2015	23.12%	+72.3%
Dec 31, 2014	13.42%	+24.1%
Dec 31, 2013	10.81%	+3.4%
Dec 31, 2012	10.45%	-37.6%
Dec 31, 2011	16.75%	+20.2%
Dec 31, 2010	13.93%	+3.3%
Dec 31, 2009	13.49%	-76.9%
Dec 31, 2008	58.43%	+125.4%
Dec 31, 2007	25.92%	+78.9%
Dec 31, 2006	14.49%	-34.8%
Dec 31, 2005	22.21%	+30.3%
Dec 31, 2004	17.05%	-2.1%
Dec 31, 2003	17.41%	+4.7%
Dec 31, 2002	16.63%	-24.0%
Dec 31, 2001	21.88%	-50.4%

Date	Value	Change
Dec 31, 2000	44.09%	+5.1%
Dec 31, 1999	41.97%	+55.6%
Dec 31, 1998	26.97%	+7.6%
Dec 31, 1997	25.06%	+26.4%
Dec 31, 1996	19.83%	+132.7%
Dec 31, 1995	8.52%	-39.1%
Dec 31, 1994	13.99%	+4.1%
Dec 31, 1993	13.44%	+4.0%
Dec 31, 1992	12.92%	-42.9%
Dec 31, 1991	22.62%	+17.8%
Dec 31, 1990	19.20%	-33.7%
Dec 31, 1989	28.95%	+90.7%
Dec 31, 1988	15.18%	-58.0%
Dec 31, 1987	36.14%	+59.9%
Dec 31, 1986	22.60%	+43.0%
Dec 31, 1985	15.80%	-35.3%
Dec 31, 1984	24.42%	+39.5%
Dec 31, 1983	17.51%	-20.8%
Dec 31, 1982	22.12%	+12.5%
Dec 31, 1981	19.66%	-41.1%
Dec 31, 1980	33.40%	+115.5%
Dec 31, 1979	15.50%	-1.3%
Dec 31, 1978	15.71%	+22.8%
Dec 31, 1977	12.79%	-12.3%
Dec 31, 1976	14.58%	-

FAQ

What is the current 1-month volatility of MRSH?: As of today, MRSH 1-month volatility is 29.55%
What 1-month volatility category does MRSH fall into?: Based on its current 1-month historical volatility, MRSH falls into the moderate volatility category
What is MRSH 1-month volatility 1-year high?: MRSH 1-month volatility reached a 1-year high of 38.65% on February 13, 2026
What is MRSH 1-month volatility 1-year low?: MRSH 1-month volatility reached a 1-year low of 9.58% on December 30, 2025

3-Month

28.44%

August 20, 2026

Summary

Current Value: As of today, MRSH 3-month volatility is 28.44%, down -0.21% on August 20, 2026
Value Category: Based on its current 3-month historical volatility, MRSH falls into the moderate volatility category
1-Year High: MRSH 3-month volatility reached a 1-year high of 32.31% on April 24, 2026
1-Year Low: MRSH 3-month volatility reached a 1-year low of 14.72% on September 10, 2025

Performance

MRSH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Aug 20, 26	28.44%	-0.2%	+4.9%	+4.1%	+24.9%	+70.7%	+120.0%	+104.0%
10-Day Volatility	Aug 20, 26	16.87%	-3.4%	-31.4%	-37.8%	+90.8%	+7.3%	+28.4%	+57.4%
1-Month Volatility	Aug 20, 26	29.55%	+2.2%	-8.7%	+20.7%	+188.3%	+73.1%	+140.4%	+99.0%
1-Year Volatility	Aug 20, 26	25.95%	+0.2%	+4.1%	+12.2%	+27.3%	+42.7%	+25.9%	+43.1%
14-Day RSI	Aug 20, 26	57.22	+2.6%	-9.4%	+31.2%	+11.8%	-1.1%	+17.0%	-18.5%
Beta	Aug 20, 26	-0.29	0.0%	-38.1%	-3000.0%	-187.9%	-178.4%	-135.4%	-140.8%
ATR	Aug 20, 26	$4.27	-0.1%	+0.5%	+3.0%	+82.9%	+27.7%	+69.9%	+112.9%
Price	Aug 20, 26	$190.21	+0.5%	+4.5%	+16.4%	+2.5%	-9.9%	+0.7%	+22.6%
200-Day SMA	Aug 20, 26	$177.38	+0.0%	-0.4%	-4.1%	-14.5%	-20.1%	+2.0%	+40.0%
50-Day SMA	Aug 20, 26	$179.35	+0.3%	+7.0%	+5.1%	-2.1%	-14.9%	-3.9%	+24.2%
20-Day SMA	Aug 20, 26	$189.66	+0.4%	+9.1%	+14.3%	+2.5%	-7.4%	-0.5%	+26.2%

3-Month Volatility History

Date	Value	Change
Aug 20, 2026	28.26%	+25.1%
Dec 31, 2025	22.59%	+55.0%
Dec 31, 2024	14.57%	-18.7%
Dec 31, 2023	17.93%	-33.9%
Dec 31, 2022	27.11%	+70.7%
Dec 31, 2021	15.88%	-19.9%
Dec 31, 2020	19.82%	+27.8%
Dec 31, 2019	15.51%	-34.5%
Dec 31, 2018	23.67%	+71.3%
Dec 31, 2017	13.82%	+2.5%
Dec 31, 2016	13.48%	-25.6%
Dec 31, 2015	18.11%	+28.1%
Dec 31, 2014	14.14%	+12.1%
Dec 31, 2013	12.61%	-2.4%
Dec 31, 2012	12.92%	-59.3%
Dec 31, 2011	31.71%	+97.0%
Dec 31, 2010	16.10%	-29.6%
Dec 31, 2009	22.87%	-68.3%
Dec 31, 2008	72.20%	+165.1%
Dec 31, 2007	27.23%	+61.8%
Dec 31, 2006	16.83%	-24.5%
Dec 31, 2005	22.29%	-68.8%
Dec 31, 2004	71.45%	+174.5%
Dec 31, 2003	26.03%	-42.3%
Dec 31, 2002	45.09%	+45.2%
Dec 31, 2001	31.05%	-35.2%

Date	Value	Change
Dec 31, 2000	47.95%	+30.1%
Dec 31, 1999	36.86%	-12.7%
Dec 31, 1998	42.21%	+53.9%
Dec 31, 1997	27.42%	+64.3%
Dec 31, 1996	16.69%	+12.5%
Dec 31, 1995	14.84%	-15.0%
Dec 31, 1994	17.46%	+11.4%
Dec 31, 1993	15.67%	+16.1%
Dec 31, 1992	13.50%	-33.5%
Dec 31, 1991	20.30%	-31.1%
Dec 31, 1990	29.45%	+5.6%
Dec 31, 1989	27.88%	+91.2%
Dec 31, 1988	14.58%	-71.8%
Dec 31, 1987	51.65%	+108.4%
Dec 31, 1986	24.78%	+32.7%
Dec 31, 1985	18.68%	-24.7%
Dec 31, 1984	24.81%	+68.4%
Dec 31, 1983	14.73%	-60.0%
Dec 31, 1982	36.79%	+73.0%
Dec 31, 1981	21.26%	-80.3%
Dec 31, 1980	107.67%	+474.2%
Dec 31, 1979	18.75%	-1.8%
Dec 31, 1978	19.10%	+54.9%
Dec 31, 1977	12.33%	-15.5%
Dec 31, 1976	14.59%	-

FAQ

What is the current 3-month volatility of MRSH?: As of today, MRSH 3-month volatility is 28.44%
What 3-month volatility category does MRSH fall into?: Based on its current 3-month historical volatility, MRSH falls into the moderate volatility category
What is MRSH 3-month volatility 1-year high?: MRSH 3-month volatility reached a 1-year high of 32.31% on April 24, 2026
What is MRSH 3-month volatility 1-year low?: MRSH 3-month volatility reached a 1-year low of 14.72% on September 10, 2025

1-Year

25.95%

August 20, 2026

Summary

Current Value: As of today, MRSH 1-year volatility is 25.95%, up +0.23% on August 20, 2026
Value Category: Based on its current 1-year historical volatility, MRSH falls into the moderate volatility category
1-Year High: MRSH 1-year volatility reached a 1-year high of 25.96% on August 7, 2026
1-Year Low: MRSH 1-year volatility reached a 1-year low of 18.11% on September 9, 2025

Performance

MRSH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Aug 20, 26	25.95%	+0.2%	+4.1%	+12.2%	+27.3%	+42.7%	+25.9%	+43.1%
10-Day Volatility	Aug 20, 26	16.87%	-3.4%	-31.4%	-37.8%	+90.8%	+7.3%	+28.4%	+57.4%
1-Month Volatility	Aug 20, 26	29.55%	+2.2%	-8.7%	+20.7%	+188.3%	+73.1%	+140.4%	+99.0%
3-Month Volatility	Aug 20, 26	28.44%	-0.2%	+4.9%	+4.1%	+24.9%	+70.7%	+120.0%	+104.0%
1-Year Volatility	Aug 20, 26	25.95%	+0.2%	+4.1%	+12.2%	+27.3%	+42.7%	+25.9%	+43.1%
14-Day RSI	Aug 20, 26	57.22	+2.6%	-9.4%	+31.2%	+11.8%	-1.1%	+17.0%	-18.5%
Beta	Aug 20, 26	-0.29	0.0%	-38.1%	-3000.0%	-187.9%	-178.4%	-135.4%	-140.8%
ATR	Aug 20, 26	$4.27	-0.1%	+0.5%	+3.0%	+82.9%	+27.7%	+69.9%	+112.9%
Price	Aug 20, 26	$190.21	+0.5%	+4.5%	+16.4%	+2.5%	-9.9%	+0.7%	+22.6%
200-Day SMA	Aug 20, 26	$177.38	+0.0%	-0.4%	-4.1%	-14.5%	-20.1%	+2.0%	+40.0%
50-Day SMA	Aug 20, 26	$179.35	+0.3%	+7.0%	+5.1%	-2.1%	-14.9%	-3.9%	+24.2%
20-Day SMA	Aug 20, 26	$189.66	+0.4%	+9.1%	+14.3%	+2.5%	-7.4%	-0.5%	+26.2%

1-Year Volatility History

Date	Value	Change
Aug 20, 2026	25.90%	+27.0%
Dec 31, 2025	20.39%	+47.0%
Dec 31, 2024	13.87%	-17.1%
Dec 31, 2023	16.74%	-35.1%
Dec 31, 2022	25.80%	+56.6%
Dec 31, 2021	16.47%	-54.6%
Dec 31, 2020	36.29%	+122.5%
Dec 31, 2019	16.31%	-10.7%
Dec 31, 2018	18.27%	+42.8%
Dec 31, 2017	12.79%	-14.8%
Dec 31, 2016	15.01%	-13.6%
Dec 31, 2015	17.38%	+23.4%
Dec 31, 2014	14.08%	+0.9%
Dec 31, 2013	13.96%	-10.3%
Dec 31, 2012	15.56%	-44.5%
Dec 31, 2011	28.02%	+36.2%
Dec 31, 2010	20.57%	-43.3%
Dec 31, 2009	36.26%	-22.3%
Dec 31, 2008	46.68%	+98.7%
Dec 31, 2007	23.49%	+16.9%
Dec 31, 2006	20.09%	-11.1%
Dec 31, 2005	22.61%	-40.7%
Dec 31, 2004	38.15%	+48.7%
Dec 31, 2003	25.66%	-29.0%
Dec 31, 2002	36.13%	+10.3%
Dec 31, 2001	32.77%	-29.5%

Date	Value	Change
Dec 31, 2000	46.47%	+31.5%
Dec 31, 1999	35.34%	+8.0%
Dec 31, 1998	32.73%	+26.8%
Dec 31, 1997	25.81%	+50.4%
Dec 31, 1996	17.16%	+28.1%
Dec 31, 1995	13.40%	-2.6%
Dec 31, 1994	13.76%	-12.9%
Dec 31, 1993	15.80%	-8.7%
Dec 31, 1992	17.30%	-16.8%
Dec 31, 1991	20.80%	-17.2%
Dec 31, 1990	25.11%	+29.2%
Dec 31, 1989	19.44%	-8.3%
Dec 31, 1988	21.20%	-38.6%
Dec 31, 1987	34.51%	+26.2%
Dec 31, 1986	27.35%	+39.8%
Dec 31, 1985	19.57%	-23.7%
Dec 31, 1984	25.65%	+25.7%
Dec 31, 1983	20.40%	-28.0%
Dec 31, 1982	28.32%	+9.7%
Dec 31, 1981	25.81%	-54.0%
Dec 31, 1980	56.10%	+240.2%
Dec 31, 1979	16.49%	-11.1%
Dec 31, 1978	18.55%	+38.5%
Dec 31, 1977	13.39%	-20.5%
Dec 31, 1976	16.84%	-

FAQ

What is the current 1-year volatility of MRSH?: As of today, MRSH 1-year volatility is 25.95%
What 1-year volatility category does MRSH fall into?: Based on its current 1-year historical volatility, MRSH falls into the moderate volatility category
What is MRSH 1-year volatility 1-year high?: MRSH 1-year volatility reached a 1-year high of 25.96% on August 7, 2026
What is MRSH 1-year volatility 1-year low?: MRSH 1-year volatility reached a 1-year low of 18.11% on September 9, 2025

Data Sources & References

MRSH Official Website www.corporate.marsh.com/global/home.html
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/62709/000006270926000022/0000062709-26-000022-index.htm
MRSH Profile on Yahoo Finance finance.yahoo.com/quote/MRSH
MRSH Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/mrsh