What is the current 10-day volatility of MRK?

As of today, MRK 10-day volatility is 22.19%

What 10-day volatility category does MRK fall into?

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

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

MRK 10-day volatility reached a 1-year high of 72.53% on August 31, 2026

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

MRK 10-day volatility reached a 1-year low of 9.79% on March 19, 2026

What is the current 1-month volatility of MRK?

As of today, MRK 1-month volatility is 19.26%

What 1-month volatility category does MRK fall into?

Based on its current 1-month historical volatility, MRK falls into the low volatility category

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

MRK 1-month volatility reached a 1-year high of 52.18% on September 11, 2026

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

MRK 1-month volatility reached a 1-year low of 15.09% on April 6, 2026

What is the current 3-month volatility of MRK?

As of today, MRK 3-month volatility is 35.09%

What 3-month volatility category does MRK fall into?

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

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

MRK 3-month volatility reached a 1-year high of 38.90% on August 20, 2026

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

MRK 3-month volatility reached a 1-year low of 22.60% on February 25, 2026

What is the current 1-year volatility of MRK?

As of today, MRK 1-year volatility is 29.05%

What 1-year volatility category does MRK fall into?

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

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

MRK 1-year volatility reached a 1-year high of 30.73% on September 10, 2026

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

MRK 1-year volatility reached a 1-year low of 26.18% on May 19, 2026

MRK Stock Volatility History & Chart Since 1972

10-Day

22.19%

September 30, 2026

Summary

Current Value: As of today, MRK 10-day volatility is 22.19%, up +34.73% on September 30, 2026
Value Category: Based on its current 10-day historical volatility, MRK falls into the low volatility category
1-Year High: MRK 10-day volatility reached a 1-year high of 72.53% on August 31, 2026
1-Year Low: MRK 10-day volatility reached a 1-year low of 9.79% on March 19, 2026

10-Day Volatility Chart

Performance

MRK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Sep 30, 26	22.19%	+34.7%	-69.2%	-33.0%	+11.2%	-58.0%	+145.5%	-46.5%
1-Month Volatility	Sep 30, 26	19.26%	+12.0%	-61.0%	-41.2%	-10.6%	-51.3%	+42.3%	-42.9%
3-Month Volatility	Sep 30, 26	35.09%	+0.9%	-6.9%	+15.2%	+32.7%	+14.3%	+89.7%	+62.4%
1-Year Volatility	Sep 30, 26	29.05%	-4.6%	-5.1%	+4.5%	-4.4%	-0.2%	+46.8%	+49.4%
14-Day RSI	Sep 30, 26	48.13	-16.7%	-24.5%	-19.9%	-25.2%	-31.3%	+52.5%	-37.3%
Beta	Sep 30, 26	0.20	0.0%	+42.9%	+5.3%	-47.4%	-46.0%	-25.9%	-54.5%
ATR	Sep 30, 26	$3.63	+0.8%	-14.0%	+8.6%	+65.8%	+68.3%	+119.2%	+96.6%
Price	Oct 1, 26	$144.23	-0.8%	-3.8%	+15.0%	+37.0%	+60.0%	+40.1%	+77.2%
200-Day SMA	Sep 30, 26	$122.42	+0.2%	+4.2%	+14.4%	+43.0%	+42.5%	+11.5%	+63.5%
50-Day SMA	Sep 30, 26	$141.69	+0.3%	+6.7%	+21.6%	+47.8%	+71.4%	+31.8%	+87.2%
20-Day SMA	Sep 30, 26	$147.75	-0.1%	+4.4%	+22.8%	+45.1%	+79.7%	+38.1%	+99.9%

10-Day Volatility History

Date	Value	Change
Oct 1, 2026	22.19%	+11.2%
Dec 31, 2025	19.95%	+10.5%
Dec 31, 2024	18.05%	+54.0%
Dec 31, 2023	11.72%	+26.6%
Dec 31, 2022	9.26%	-21.9%
Dec 31, 2021	11.86%	+0.7%
Dec 31, 2020	11.78%	+12.1%
Dec 31, 2019	10.51%	-65.2%
Dec 31, 2018	30.23%	+341.3%
Dec 31, 2017	6.85%	-49.2%
Dec 31, 2016	13.49%	-33.2%
Dec 31, 2015	20.18%	-17.4%
Dec 31, 2014	24.42%	+112.3%
Dec 31, 2013	11.50%	-47.0%
Dec 31, 2012	21.70%	+82.0%
Dec 31, 2011	11.92%	+75.6%
Dec 31, 2010	6.79%	-49.2%
Dec 31, 2009	13.37%	-65.6%
Dec 31, 2008	38.91%	+170.6%
Dec 31, 2007	14.38%	+23.4%
Dec 31, 2006	11.65%	-71.1%
Dec 31, 2005	40.29%	+239.4%
Dec 31, 2004	11.87%	-6.1%
Dec 31, 2003	12.64%	-30.1%
Dec 31, 2002	18.09%	-3.4%
Dec 31, 2001	18.72%	-34.3%
Dec 31, 2000	28.48%	-17.4%
Dec 31, 1999	34.49%	+42.3%

Date	Value	Change
Dec 31, 1998	24.24%	-29.4%
Dec 31, 1997	34.35%	+1.4%
Dec 31, 1996	33.87%	+8.3%
Dec 31, 1995	31.28%	+95.1%
Dec 31, 1994	16.03%	-15.2%
Dec 31, 1993	18.91%	-15.7%
Dec 31, 1992	22.43%	+8.8%
Dec 31, 1991	20.61%	+36.9%
Dec 31, 1990	15.06%	+4.7%
Dec 31, 1989	14.38%	+10.4%
Dec 31, 1988	13.02%	-49.3%
Dec 31, 1987	25.69%	-37.1%
Dec 31, 1986	40.84%	+160.3%
Dec 31, 1985	15.69%	+13.4%
Dec 31, 1984	13.84%	-22.1%
Dec 31, 1983	17.77%	-23.9%
Dec 31, 1982	23.35%	+98.2%
Dec 31, 1981	11.78%	-63.4%
Dec 31, 1980	32.18%	+114.8%
Dec 31, 1979	14.98%	-56.8%
Dec 31, 1978	34.68%	+164.7%
Dec 31, 1977	13.10%	+4.6%
Dec 31, 1976	12.52%	-60.8%
Dec 31, 1975	31.96%	+0.5%
Dec 31, 1974	31.79%	+6.7%
Dec 31, 1973	29.78%	+140.2%
Dec 31, 1972	12.40%	-

FAQ

What is the current 10-day volatility of MRK?: As of today, MRK 10-day volatility is 22.19%
What 10-day volatility category does MRK fall into?: Based on its current 10-day historical volatility, MRK falls into the low volatility category
What is MRK 10-day volatility 1-year high?: MRK 10-day volatility reached a 1-year high of 72.53% on August 31, 2026
What is MRK 10-day volatility 1-year low?: MRK 10-day volatility reached a 1-year low of 9.79% on March 19, 2026

1-Month

19.26%

September 30, 2026

Summary

Current Value: As of today, MRK 1-month volatility is 19.26%, up +11.98% on September 30, 2026
Value Category: Based on its current 1-month historical volatility, MRK falls into the low volatility category
1-Year High: MRK 1-month volatility reached a 1-year high of 52.18% on September 11, 2026
1-Year Low: MRK 1-month volatility reached a 1-year low of 15.09% on April 6, 2026

Performance

MRK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Sep 30, 26	19.26%	+12.0%	-61.0%	-41.2%	-10.6%	-51.3%	+42.3%	-42.9%
10-Day Volatility	Sep 30, 26	22.19%	+34.7%	-69.2%	-33.0%	+11.2%	-58.0%	+145.5%	-46.5%
3-Month Volatility	Sep 30, 26	35.09%	+0.9%	-6.9%	+15.2%	+32.7%	+14.3%	+89.7%	+62.4%
1-Year Volatility	Sep 30, 26	29.05%	-4.6%	-5.1%	+4.5%	-4.4%	-0.2%	+46.8%	+49.4%
14-Day RSI	Sep 30, 26	48.13	-16.7%	-24.5%	-19.9%	-25.2%	-31.3%	+52.5%	-37.3%
Beta	Sep 30, 26	0.20	0.0%	+42.9%	+5.3%	-47.4%	-46.0%	-25.9%	-54.5%
ATR	Sep 30, 26	$3.63	+0.8%	-14.0%	+8.6%	+65.8%	+68.3%	+119.2%	+96.6%
Price	Oct 1, 26	$144.23	-0.8%	-3.8%	+15.0%	+37.0%	+60.0%	+40.1%	+77.2%
200-Day SMA	Sep 30, 26	$122.42	+0.2%	+4.2%	+14.4%	+43.0%	+42.5%	+11.5%	+63.5%
50-Day SMA	Sep 30, 26	$141.69	+0.3%	+6.7%	+21.6%	+47.8%	+71.4%	+31.8%	+87.2%
20-Day SMA	Sep 30, 26	$147.75	-0.1%	+4.4%	+22.8%	+45.1%	+79.7%	+38.1%	+99.9%

1-Month Volatility History

Date	Value	Change
Oct 1, 2026	19.26%	-17.7%
Dec 31, 2025	23.39%	+11.9%
Dec 31, 2024	20.91%	+28.1%
Dec 31, 2023	16.32%	+15.4%
Dec 31, 2022	14.14%	-2.0%
Dec 31, 2021	14.43%	-8.2%
Dec 31, 2020	15.72%	+71.6%
Dec 31, 2019	9.16%	-66.2%
Dec 31, 2018	27.08%	+69.9%
Dec 31, 2017	15.94%	+8.6%
Dec 31, 2016	14.68%	-42.2%
Dec 31, 2015	25.38%	+14.2%
Dec 31, 2014	22.23%	+67.8%
Dec 31, 2013	13.25%	-33.2%
Dec 31, 2012	19.84%	+27.2%
Dec 31, 2011	15.60%	+60.0%
Dec 31, 2010	9.75%	-42.1%
Dec 31, 2009	16.85%	-70.7%
Dec 31, 2008	57.47%	+272.9%
Dec 31, 2007	15.41%	+6.1%
Dec 31, 2006	14.53%	-55.1%
Dec 31, 2005	32.39%	+29.5%
Dec 31, 2004	25.01%	+39.7%
Dec 31, 2003	17.90%	-4.2%
Dec 31, 2002	18.68%	-52.1%
Dec 31, 2001	38.96%	+50.1%
Dec 31, 2000	25.96%	-30.7%
Dec 31, 1999	37.44%	+34.4%

Date	Value	Change
Dec 31, 1998	27.86%	-16.7%
Dec 31, 1997	33.44%	+5.9%
Dec 31, 1996	31.58%	+16.2%
Dec 31, 1995	27.17%	+66.5%
Dec 31, 1994	16.32%	-4.8%
Dec 31, 1993	17.15%	-16.0%
Dec 31, 1992	20.41%	+14.9%
Dec 31, 1991	17.77%	+6.3%
Dec 31, 1990	16.72%	+36.5%
Dec 31, 1989	12.25%	-9.8%
Dec 31, 1988	13.58%	-60.4%
Dec 31, 1987	34.30%	+7.9%
Dec 31, 1986	31.78%	+99.4%
Dec 31, 1985	15.94%	+25.4%
Dec 31, 1984	12.71%	-22.2%
Dec 31, 1983	16.34%	-45.2%
Dec 31, 1982	29.84%	+91.4%
Dec 31, 1981	15.59%	-44.8%
Dec 31, 1980	28.22%	+61.3%
Dec 31, 1979	17.49%	-49.8%
Dec 31, 1978	34.82%	+170.8%
Dec 31, 1977	12.86%	-40.9%
Dec 31, 1976	21.77%	-8.0%
Dec 31, 1975	23.66%	-42.0%
Dec 31, 1974	40.76%	+50.2%
Dec 31, 1973	27.14%	+97.8%
Dec 31, 1972	13.72%	-

FAQ

What is the current 1-month volatility of MRK?: As of today, MRK 1-month volatility is 19.26%
What 1-month volatility category does MRK fall into?: Based on its current 1-month historical volatility, MRK falls into the low volatility category
What is MRK 1-month volatility 1-year high?: MRK 1-month volatility reached a 1-year high of 52.18% on September 11, 2026
What is MRK 1-month volatility 1-year low?: MRK 1-month volatility reached a 1-year low of 15.09% on April 6, 2026

3-Month

35.09%

September 30, 2026

Summary

Current Value: As of today, MRK 3-month volatility is 35.09%, up +0.86% on September 30, 2026
Value Category: Based on its current 3-month historical volatility, MRK falls into the moderate volatility category
1-Year High: MRK 3-month volatility reached a 1-year high of 38.90% on August 20, 2026
1-Year Low: MRK 3-month volatility reached a 1-year low of 22.60% on February 25, 2026

Performance

MRK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Sep 30, 26	35.09%	+0.9%	-6.9%	+15.2%	+32.7%	+14.3%	+89.7%	+62.4%
10-Day Volatility	Sep 30, 26	22.19%	+34.7%	-69.2%	-33.0%	+11.2%	-58.0%	+145.5%	-46.5%
1-Month Volatility	Sep 30, 26	19.26%	+12.0%	-61.0%	-41.2%	-10.6%	-51.3%	+42.3%	-42.9%
1-Year Volatility	Sep 30, 26	29.05%	-4.6%	-5.1%	+4.5%	-4.4%	-0.2%	+46.8%	+49.4%
14-Day RSI	Sep 30, 26	48.13	-16.7%	-24.5%	-19.9%	-25.2%	-31.3%	+52.5%	-37.3%
Beta	Sep 30, 26	0.20	0.0%	+42.9%	+5.3%	-47.4%	-46.0%	-25.9%	-54.5%
ATR	Sep 30, 26	$3.63	+0.8%	-14.0%	+8.6%	+65.8%	+68.3%	+119.2%	+96.6%
Price	Oct 1, 26	$144.23	-0.8%	-3.8%	+15.0%	+37.0%	+60.0%	+40.1%	+77.2%
200-Day SMA	Sep 30, 26	$122.42	+0.2%	+4.2%	+14.4%	+43.0%	+42.5%	+11.5%	+63.5%
50-Day SMA	Sep 30, 26	$141.69	+0.3%	+6.7%	+21.6%	+47.8%	+71.4%	+31.8%	+87.2%
20-Day SMA	Sep 30, 26	$147.75	-0.1%	+4.4%	+22.8%	+45.1%	+79.7%	+38.1%	+99.9%

3-Month Volatility History

Date	Value	Change
Oct 1, 2026	35.09%	+17.7%
Dec 31, 2025	29.81%	+48.7%
Dec 31, 2024	20.05%	+25.8%
Dec 31, 2023	15.94%	-17.5%
Dec 31, 2022	19.33%	-46.7%
Dec 31, 2021	36.24%	+94.2%
Dec 31, 2020	18.66%	+6.0%
Dec 31, 2019	17.60%	-21.2%
Dec 31, 2018	22.34%	+5.6%
Dec 31, 2017	21.15%	-3.8%
Dec 31, 2016	21.99%	-2.2%
Dec 31, 2015	22.49%	-0.8%
Dec 31, 2014	22.66%	+59.9%
Dec 31, 2013	14.17%	-19.3%
Dec 31, 2012	17.55%	-27.2%
Dec 31, 2011	24.11%	+56.6%
Dec 31, 2010	15.40%	-35.8%
Dec 31, 2009	23.98%	-67.1%
Dec 31, 2008	72.80%	+259.2%
Dec 31, 2007	20.27%	+17.6%
Dec 31, 2006	17.23%	-40.2%
Dec 31, 2005	28.79%	-18.9%
Dec 31, 2004	35.52%	+33.5%
Dec 31, 2003	26.60%	-11.0%
Dec 31, 2002	29.89%	+6.6%
Dec 31, 2001	28.04%	-2.5%
Dec 31, 2000	28.76%	-15.2%
Dec 31, 1999	33.93%	+27.1%

Date	Value	Change
Dec 31, 1998	26.70%	-22.5%
Dec 31, 1997	34.44%	+34.0%
Dec 31, 1996	25.70%	+19.9%
Dec 31, 1995	21.44%	+3.6%
Dec 31, 1994	20.69%	-7.3%
Dec 31, 1993	22.32%	-18.9%
Dec 31, 1992	27.51%	+17.8%
Dec 31, 1991	23.35%	-1.8%
Dec 31, 1990	23.78%	+8.8%
Dec 31, 1989	21.86%	+26.6%
Dec 31, 1988	17.27%	-64.5%
Dec 31, 1987	48.65%	+87.0%
Dec 31, 1986	26.01%	+46.7%
Dec 31, 1985	17.73%	-1.1%
Dec 31, 1984	17.92%	-13.4%
Dec 31, 1983	20.70%	-29.0%
Dec 31, 1982	29.14%	+27.0%
Dec 31, 1981	22.94%	-0.8%
Dec 31, 1980	23.12%	+7.5%
Dec 31, 1979	21.51%	-39.6%
Dec 31, 1978	35.63%	+72.5%
Dec 31, 1977	20.65%	-1.0%
Dec 31, 1976	20.86%	-7.8%
Dec 31, 1975	22.62%	-50.7%
Dec 31, 1974	45.90%	+89.7%
Dec 31, 1973	24.20%	+43.8%
Dec 31, 1972	16.83%	-

FAQ

What is the current 3-month volatility of MRK?: As of today, MRK 3-month volatility is 35.09%
What 3-month volatility category does MRK fall into?: Based on its current 3-month historical volatility, MRK falls into the moderate volatility category
What is MRK 3-month volatility 1-year high?: MRK 3-month volatility reached a 1-year high of 38.90% on August 20, 2026
What is MRK 3-month volatility 1-year low?: MRK 3-month volatility reached a 1-year low of 22.60% on February 25, 2026

1-Year

29.05%

September 30, 2026

Summary

Current Value: As of today, MRK 1-year volatility is 29.05%, down -4.60% on September 30, 2026
Value Category: Based on its current 1-year historical volatility, MRK falls into the moderate volatility category
1-Year High: MRK 1-year volatility reached a 1-year high of 30.73% on September 10, 2026
1-Year Low: MRK 1-year volatility reached a 1-year low of 26.18% on May 19, 2026

Performance

MRK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Sep 30, 26	29.05%	-4.6%	-5.1%	+4.5%	-4.4%	-0.2%	+46.8%	+49.4%
10-Day Volatility	Sep 30, 26	22.19%	+34.7%	-69.2%	-33.0%	+11.2%	-58.0%	+145.5%	-46.5%
1-Month Volatility	Sep 30, 26	19.26%	+12.0%	-61.0%	-41.2%	-10.6%	-51.3%	+42.3%	-42.9%
3-Month Volatility	Sep 30, 26	35.09%	+0.9%	-6.9%	+15.2%	+32.7%	+14.3%	+89.7%	+62.4%
1-Year Volatility	Sep 30, 26	29.05%	-4.6%	-5.1%	+4.5%	-4.4%	-0.2%	+46.8%	+49.4%
14-Day RSI	Sep 30, 26	48.13	-16.7%	-24.5%	-19.9%	-25.2%	-31.3%	+52.5%	-37.3%
Beta	Sep 30, 26	0.20	0.0%	+42.9%	+5.3%	-47.4%	-46.0%	-25.9%	-54.5%
ATR	Sep 30, 26	$3.63	+0.8%	-14.0%	+8.6%	+65.8%	+68.3%	+119.2%	+96.6%
Price	Oct 1, 26	$144.23	-0.8%	-3.8%	+15.0%	+37.0%	+60.0%	+40.1%	+77.2%
200-Day SMA	Sep 30, 26	$122.42	+0.2%	+4.2%	+14.4%	+43.0%	+42.5%	+11.5%	+63.5%
50-Day SMA	Sep 30, 26	$141.69	+0.3%	+6.7%	+21.6%	+47.8%	+71.4%	+31.8%	+87.2%
20-Day SMA	Sep 30, 26	$147.75	-0.1%	+4.4%	+22.8%	+45.1%	+79.7%	+38.1%	+99.9%

1-Year Volatility History

Date	Value	Change
Oct 1, 2026	29.05%	-4.4%
Dec 31, 2025	30.39%	+43.3%
Dec 31, 2024	21.21%	+12.8%
Dec 31, 2023	18.80%	-5.5%
Dec 31, 2022	19.89%	-15.4%
Dec 31, 2021	23.51%	-26.2%
Dec 31, 2020	31.84%	+72.9%
Dec 31, 2019	18.41%	-8.7%
Dec 31, 2018	20.17%	+27.2%
Dec 31, 2017	15.86%	-24.6%
Dec 31, 2016	21.04%	-4.3%
Dec 31, 2015	21.99%	+14.2%
Dec 31, 2014	19.26%	+17.9%
Dec 31, 2013	16.33%	+4.5%
Dec 31, 2012	15.63%	-30.4%
Dec 31, 2011	22.47%	+9.8%
Dec 31, 2010	20.47%	-42.9%
Dec 31, 2009	35.85%	-27.8%
Dec 31, 2008	49.66%	+125.6%
Dec 31, 2007	22.01%	+15.2%
Dec 31, 2006	19.11%	-30.2%
Dec 31, 2005	27.38%	-22.0%
Dec 31, 2004	35.10%	+42.0%
Dec 31, 2003	24.72%	-24.9%
Dec 31, 2002	32.90%	+9.8%
Dec 31, 2001	29.95%	-22.7%
Dec 31, 2000	38.73%	+24.0%
Dec 31, 1999	31.24%	+5.6%

Date	Value	Change
Dec 31, 1998	29.58%	-4.5%
Dec 31, 1997	30.96%	+19.1%
Dec 31, 1996	25.99%	+28.3%
Dec 31, 1995	20.26%	-10.9%
Dec 31, 1994	22.75%	-27.1%
Dec 31, 1993	31.22%	+29.0%
Dec 31, 1992	24.21%	+11.2%
Dec 31, 1991	21.78%	-7.8%
Dec 31, 1990	23.63%	+16.3%
Dec 31, 1989	20.31%	-8.1%
Dec 31, 1988	22.09%	-32.1%
Dec 31, 1987	32.52%	+29.5%
Dec 31, 1986	25.11%	+62.9%
Dec 31, 1985	15.41%	-19.1%
Dec 31, 1984	19.04%	-5.8%
Dec 31, 1983	20.21%	-18.9%
Dec 31, 1982	24.91%	+8.4%
Dec 31, 1981	22.99%	-3.7%
Dec 31, 1980	23.87%	+30.3%
Dec 31, 1979	18.32%	-29.5%
Dec 31, 1978	25.98%	+39.5%
Dec 31, 1977	18.63%	-3.4%
Dec 31, 1976	19.29%	-26.8%
Dec 31, 1975	26.34%	-27.8%
Dec 31, 1974	36.50%	+47.6%
Dec 31, 1973	24.73%	+43.9%
Dec 31, 1972	17.19%	-

FAQ

What is the current 1-year volatility of MRK?: As of today, MRK 1-year volatility is 29.05%
What 1-year volatility category does MRK fall into?: Based on its current 1-year historical volatility, MRK falls into the moderate volatility category
What is MRK 1-year volatility 1-year high?: MRK 1-year volatility reached a 1-year high of 30.73% on September 10, 2026
What is MRK 1-year volatility 1-year low?: MRK 1-year volatility reached a 1-year low of 26.18% on May 19, 2026

Data Sources & References

MRK Official Website www.merck.com
MRK Profile on Yahoo Finance finance.yahoo.com/quote/MRK
MRK Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/mrk