What is the current 10-day volatility of MDU?

As of today, MDU 10-day volatility is 15.24%

What 10-day volatility category does MDU fall into?

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

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

MDU 10-day volatility reached a 1-year high of 41.50% on August 13, 2025

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

MDU 10-day volatility reached a 1-year low of 8.05% on October 15, 2025

What is the current 1-month volatility of MDU?

As of today, MDU 1-month volatility is 14.54%

What 1-month volatility category does MDU fall into?

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

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

MDU 1-month volatility reached a 1-year high of 32.30% on February 11, 2025

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

MDU 1-month volatility reached a 1-year low of 12.89% on January 5, 2026

What is the current 3-month volatility of MDU?

As of today, MDU 3-month volatility is 20.94%

What 3-month volatility category does MDU fall into?

Based on its current 3-month historical volatility, MDU falls into the low volatility category

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

MDU 3-month volatility reached a 1-year high of 32.18% on January 16, 2025

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

MDU 3-month volatility reached a 1-year low of 20.76% on November 25, 2025

What is the current 1-year volatility of MDU?

As of today, MDU 1-year volatility is 23.64%

What 1-year volatility category does MDU fall into?

Based on its current 1-year historical volatility, MDU falls into the low volatility category

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

MDU 1-year volatility reached a 1-year high of 27.90% on August 22, 2025

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

MDU 1-year volatility reached a 1-year low of 23.59% on January 16, 2026

MDU Stock Volatility History & Chart Since 1975

10-Day

15.24%

January 16, 2026

Summary

Current Value: As of today, MDU 10-day volatility is 15.24%, down -6.96% on January 16, 2026
Value Category: Based on its current 10-day historical volatility, MDU falls into the low volatility category
1-Year High: MDU 10-day volatility reached a 1-year high of 41.50% on August 13, 2025
1-Year Low: MDU 10-day volatility reached a 1-year low of 8.05% on October 15, 2025

10-Day Volatility Chart

Performance

MDU Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Jan 16, 26	15.24%	-7.0%	-32.2%	+5.6%	+17.1%	-29.6%	-9.7%	-54.3%
1-Month Volatility	Jan 16, 26	14.54%	-0.3%	-33.0%	-27.0%	-18.9%	-45.1%	-7.2%	-51.6%
3-Month Volatility	Jan 16, 26	20.94%	-0.1%	-8.2%	-11.9%	+0.9%	-34.9%	-14.0%	-37.6%
1-Year Volatility	Jan 16, 26	23.64%	-0.2%	-3.0%	-11.0%	-0.4%	-5.2%	-4.5%	-59.4%
14-Day RSI	Jan 16, 26	65.76	+6.4%	+57.6%	-10.8%	+46.4%	+20.7%	+16.0%	-0.2%
Beta	Jan 16, 26	0.47	0.0%	-6.0%	-14.6%	0.0%	-43.4%	-27.7%	-60.8%
ATR	Jan 16, 26	$0.32	+2.2%	-11.2%	-1.5%	+5.5%	-22.1%	+67.8%	+17.8%
Price	Jan 16, 26	$20.66	+1.2%	+5.9%	+8.7%	+5.8%	+12.0%	+75.8%	+95.4%
200-Day SMA	Jan 16, 26	$17.88	+0.1%	+1.8%	+5.0%	+1.0%	+16.5%	+64.8%	+102.5%
50-Day SMA	Jan 16, 26	$20.12	+0.1%	+1.2%	+18.5%	+0.6%	+8.8%	+74.5%	+107.1%

10-Day Volatility History

Date	Value	Change
Jan 16, 2026	15.24%	+17.1%
Dec 31, 2025	13.01%	-57.8%
Dec 31, 2024	30.82%	+95.1%
Dec 31, 2023	15.80%	-12.3%
Dec 31, 2022	18.02%	+4.4%
Dec 31, 2021	17.26%	-37.9%
Dec 31, 2020	27.79%	+147.7%
Dec 31, 2019	11.22%	-69.2%
Dec 31, 2018	36.42%	+139.4%
Dec 31, 2017	15.21%	-6.9%
Dec 31, 2016	16.33%	-32.5%
Dec 31, 2015	24.21%	-25.2%
Dec 31, 2014	32.38%	+91.5%
Dec 31, 2013	16.91%	-12.9%
Dec 31, 2012	19.41%	-9.2%
Dec 31, 2011	21.38%	+118.8%
Dec 31, 2010	9.77%	-29.9%
Dec 31, 2009	13.94%	-64.6%
Dec 31, 2008	39.33%	+184.2%
Dec 31, 2007	13.84%	-4.6%
Dec 31, 2006	14.50%	-1.4%
Dec 31, 2005	14.70%	-31.7%
Dec 31, 2004	21.51%	+184.5%
Dec 31, 2003	7.56%	-51.5%
Dec 31, 2002	15.59%	-12.8%
Dec 31, 2001	17.87%	-34.3%

Date	Value	Change
Dec 31, 2000	27.19%	-22.8%
Dec 31, 1999	35.22%	+39.8%
Dec 31, 1998	25.19%	-43.3%
Dec 31, 1997	44.42%	+67.8%
Dec 31, 1996	26.47%	+24.3%
Dec 31, 1995	21.30%	+76.2%
Dec 31, 1994	12.09%	-13.9%
Dec 31, 1993	14.04%	+30.8%
Dec 31, 1992	10.73%	-12.2%
Dec 31, 1991	12.22%	+48.5%
Dec 31, 1990	8.23%	-10.0%
Dec 31, 1989	9.14%	+22.5%
Dec 31, 1988	7.46%	-81.2%
Dec 31, 1987	39.61%	+190.2%
Dec 31, 1986	13.65%	-32.8%
Dec 31, 1985	20.30%	+65.2%
Dec 31, 1984	12.29%	-16.7%
Dec 31, 1983	14.76%	-28.8%
Dec 31, 1982	20.73%	-19.8%
Dec 31, 1981	25.85%	-45.9%
Dec 31, 1980	47.79%	+96.7%
Dec 31, 1979	24.30%	+33.8%
Dec 31, 1978	18.16%	+114.7%
Dec 31, 1977	8.46%	+1.3%
Dec 31, 1976	8.35%	-47.2%
Dec 31, 1975	15.80%	-

FAQ

What is the current 10-day volatility of MDU?
As of today, MDU 10-day volatility is 15.24%
What 10-day volatility category does MDU fall into?
Based on its current 10-day historical volatility, MDU falls into the low volatility category
What is MDU 10-day volatility 1-year high?
MDU 10-day volatility reached a 1-year high of 41.50% on August 13, 2025
What is MDU 10-day volatility 1-year low?
MDU 10-day volatility reached a 1-year low of 8.05% on October 15, 2025

1-Month

14.54%

January 16, 2026

Summary

Current Value: As of today, MDU 1-month volatility is 14.54%, down -0.27% on January 16, 2026
Value Category: Based on its current 1-month historical volatility, MDU falls into the very low volatility category
1-Year High: MDU 1-month volatility reached a 1-year high of 32.30% on February 11, 2025
1-Year Low: MDU 1-month volatility reached a 1-year low of 12.89% on January 5, 2026

Performance

MDU Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Jan 16, 26	14.54%	-0.3%	-33.0%	-27.0%	-18.9%	-45.1%	-7.2%	-51.6%
10-Day Volatility	Jan 16, 26	15.24%	-7.0%	-32.2%	+5.6%	+17.1%	-29.6%	-9.7%	-54.3%
3-Month Volatility	Jan 16, 26	20.94%	-0.1%	-8.2%	-11.9%	+0.9%	-34.9%	-14.0%	-37.6%
1-Year Volatility	Jan 16, 26	23.64%	-0.2%	-3.0%	-11.0%	-0.4%	-5.2%	-4.5%	-59.4%
14-Day RSI	Jan 16, 26	65.76	+6.4%	+57.6%	-10.8%	+46.4%	+20.7%	+16.0%	-0.2%
Beta	Jan 16, 26	0.47	0.0%	-6.0%	-14.6%	0.0%	-43.4%	-27.7%	-60.8%
ATR	Jan 16, 26	$0.32	+2.2%	-11.2%	-1.5%	+5.5%	-22.1%	+67.8%	+17.8%
Price	Jan 16, 26	$20.66	+1.2%	+5.9%	+8.7%	+5.8%	+12.0%	+75.8%	+95.4%
200-Day SMA	Jan 16, 26	$17.88	+0.1%	+1.8%	+5.0%	+1.0%	+16.5%	+64.8%	+102.5%
50-Day SMA	Jan 16, 26	$20.12	+0.1%	+1.2%	+18.5%	+0.6%	+8.8%	+74.5%	+107.1%

1-Month Volatility History

Date	Value	Change
Jan 16, 2026	14.85%	-25.6%
Dec 31, 2025	19.95%	-12.7%
Dec 31, 2024	22.84%	+34.8%
Dec 31, 2023	16.94%	-8.1%
Dec 31, 2022	18.43%	+0.7%
Dec 31, 2021	18.31%	-21.4%
Dec 31, 2020	23.30%	+103.1%
Dec 31, 2019	11.47%	-61.0%
Dec 31, 2018	29.41%	+76.1%
Dec 31, 2017	16.70%	-8.7%
Dec 31, 2016	18.30%	-28.7%
Dec 31, 2015	25.65%	-21.8%
Dec 31, 2014	32.79%	+86.4%
Dec 31, 2013	17.59%	-9.0%
Dec 31, 2012	19.34%	-26.6%
Dec 31, 2011	26.36%	+85.6%
Dec 31, 2010	14.20%	-22.3%
Dec 31, 2009	18.27%	-72.9%
Dec 31, 2008	67.45%	+237.6%
Dec 31, 2007	19.98%	+28.5%
Dec 31, 2006	15.55%	-2.6%
Dec 31, 2005	15.96%	-18.2%
Dec 31, 2004	19.51%	+42.6%
Dec 31, 2003	13.68%	-1.9%
Dec 31, 2002	13.95%	-55.8%
Dec 31, 2001	31.55%	+27.9%

Date	Value	Change
Dec 31, 2000	24.67%	-35.1%
Dec 31, 1999	37.99%	+60.1%
Dec 31, 1998	23.73%	-27.5%
Dec 31, 1997	32.75%	+49.3%
Dec 31, 1996	21.94%	-10.1%
Dec 31, 1995	24.41%	+122.9%
Dec 31, 1994	10.95%	-14.7%
Dec 31, 1993	12.83%	+7.3%
Dec 31, 1992	11.96%	+5.8%
Dec 31, 1991	11.30%	+3.2%
Dec 31, 1990	10.95%	-31.5%
Dec 31, 1989	15.98%	-5.0%
Dec 31, 1988	16.82%	-45.3%
Dec 31, 1987	30.73%	+34.8%
Dec 31, 1986	22.79%	+33.8%
Dec 31, 1985	17.03%	+61.3%
Dec 31, 1984	10.56%	-46.5%
Dec 31, 1983	19.73%	-10.5%
Dec 31, 1982	22.05%	-5.3%
Dec 31, 1981	23.29%	-43.3%
Dec 31, 1980	41.07%	+86.4%
Dec 31, 1979	22.03%	-14.1%
Dec 31, 1978	25.64%	+85.4%
Dec 31, 1977	13.83%	+29.1%
Dec 31, 1976	10.71%	-42.8%
Dec 31, 1975	18.71%	-

FAQ

What is the current 1-month volatility of MDU?
As of today, MDU 1-month volatility is 14.54%
What 1-month volatility category does MDU fall into?
Based on its current 1-month historical volatility, MDU falls into the very low volatility category
What is MDU 1-month volatility 1-year high?
MDU 1-month volatility reached a 1-year high of 32.30% on February 11, 2025
What is MDU 1-month volatility 1-year low?
MDU 1-month volatility reached a 1-year low of 12.89% on January 5, 2026

3-Month

20.94%

January 16, 2026

Summary

Current Value: As of today, MDU 3-month volatility is 20.94%, down -0.10% on January 16, 2026
Value Category: Based on its current 3-month historical volatility, MDU falls into the low volatility category
1-Year High: MDU 3-month volatility reached a 1-year high of 32.18% on January 16, 2025
1-Year Low: MDU 3-month volatility reached a 1-year low of 20.76% on November 25, 2025

Performance

MDU Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Jan 16, 26	20.94%	-0.1%	-8.2%	-11.9%	+0.9%	-34.9%	-14.0%	-37.6%
10-Day Volatility	Jan 16, 26	15.24%	-7.0%	-32.2%	+5.6%	+17.1%	-29.6%	-9.7%	-54.3%
1-Month Volatility	Jan 16, 26	14.54%	-0.3%	-33.0%	-27.0%	-18.9%	-45.1%	-7.2%	-51.6%
1-Year Volatility	Jan 16, 26	23.64%	-0.2%	-3.0%	-11.0%	-0.4%	-5.2%	-4.5%	-59.4%
14-Day RSI	Jan 16, 26	65.76	+6.4%	+57.6%	-10.8%	+46.4%	+20.7%	+16.0%	-0.2%
Beta	Jan 16, 26	0.47	0.0%	-6.0%	-14.6%	0.0%	-43.4%	-27.7%	-60.8%
ATR	Jan 16, 26	$0.32	+2.2%	-11.2%	-1.5%	+5.5%	-22.1%	+67.8%	+17.8%
Price	Jan 16, 26	$20.66	+1.2%	+5.9%	+8.7%	+5.8%	+12.0%	+75.8%	+95.4%
200-Day SMA	Jan 16, 26	$17.88	+0.1%	+1.8%	+5.0%	+1.0%	+16.5%	+64.8%	+102.5%
50-Day SMA	Jan 16, 26	$20.12	+0.1%	+1.2%	+18.5%	+0.6%	+8.8%	+74.5%	+107.1%

3-Month Volatility History

Date	Value	Change
Jan 16, 2026	20.83%	+0.1%
Dec 31, 2025	20.80%	-37.4%
Dec 31, 2024	33.25%	+58.1%
Dec 31, 2023	21.03%	-21.6%
Dec 31, 2022	26.81%	+0.5%
Dec 31, 2021	26.68%	-17.5%
Dec 31, 2020	32.33%	+146.4%
Dec 31, 2019	13.12%	-43.3%
Dec 31, 2018	23.14%	+36.7%
Dec 31, 2017	16.93%	-27.6%
Dec 31, 2016	23.39%	-28.9%
Dec 31, 2015	32.90%	+10.8%
Dec 31, 2014	29.70%	+52.6%
Dec 31, 2013	19.46%	+17.2%
Dec 31, 2012	16.61%	-41.3%
Dec 31, 2011	28.32%	+75.9%
Dec 31, 2010	16.10%	-16.7%
Dec 31, 2009	19.33%	-80.9%
Dec 31, 2008	101.46%	+423.5%
Dec 31, 2007	19.38%	-1.2%
Dec 31, 2006	19.62%	-19.2%
Dec 31, 2005	24.28%	+33.3%
Dec 31, 2004	18.21%	+8.4%
Dec 31, 2003	16.80%	-42.0%
Dec 31, 2002	28.96%	-17.2%
Dec 31, 2001	34.97%	+29.7%

Date	Value	Change
Dec 31, 2000	26.96%	-12.1%
Dec 31, 1999	30.66%	+26.1%
Dec 31, 1998	24.31%	-21.3%
Dec 31, 1997	30.90%	+63.1%
Dec 31, 1996	18.94%	-6.6%
Dec 31, 1995	20.28%	+77.9%
Dec 31, 1994	11.40%	+6.7%
Dec 31, 1993	10.68%	-12.0%
Dec 31, 1992	12.13%	-16.2%
Dec 31, 1991	14.47%	-0.8%
Dec 31, 1990	14.58%	-12.5%
Dec 31, 1989	16.67%	+25.6%
Dec 31, 1988	13.27%	-52.8%
Dec 31, 1987	28.09%	+26.8%
Dec 31, 1986	22.15%	+67.9%
Dec 31, 1985	13.19%	-13.2%
Dec 31, 1984	15.20%	-8.3%
Dec 31, 1983	16.57%	-46.3%
Dec 31, 1982	30.84%	+25.8%
Dec 31, 1981	24.52%	-28.9%
Dec 31, 1980	34.51%	+18.6%
Dec 31, 1979	29.11%	+20.6%
Dec 31, 1978	24.13%	+27.1%
Dec 31, 1977	18.98%	+32.9%
Dec 31, 1976	14.28%	-15.6%
Dec 31, 1975	16.92%	-

FAQ

What is the current 3-month volatility of MDU?
As of today, MDU 3-month volatility is 20.94%
What 3-month volatility category does MDU fall into?
Based on its current 3-month historical volatility, MDU falls into the low volatility category
What is MDU 3-month volatility 1-year high?
MDU 3-month volatility reached a 1-year high of 32.18% on January 16, 2025
What is MDU 3-month volatility 1-year low?
MDU 3-month volatility reached a 1-year low of 20.76% on November 25, 2025

1-Year

23.64%

January 16, 2026

Summary

Current Value: As of today, MDU 1-year volatility is 23.64%, down -0.17% on January 16, 2026
Value Category: Based on its current 1-year historical volatility, MDU falls into the low volatility category
1-Year High: MDU 1-year volatility reached a 1-year high of 27.90% on August 22, 2025
1-Year Low: MDU 1-year volatility reached a 1-year low of 23.59% on January 16, 2026

Performance

MDU Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Jan 16, 26	23.64%	-0.2%	-3.0%	-11.0%	-0.4%	-5.2%	-4.5%	-59.4%
10-Day Volatility	Jan 16, 26	15.24%	-7.0%	-32.2%	+5.6%	+17.1%	-29.6%	-9.7%	-54.3%
1-Month Volatility	Jan 16, 26	14.54%	-0.3%	-33.0%	-27.0%	-18.9%	-45.1%	-7.2%	-51.6%
3-Month Volatility	Jan 16, 26	20.94%	-0.1%	-8.2%	-11.9%	+0.9%	-34.9%	-14.0%	-37.6%
1-Year Volatility	Jan 16, 26	23.64%	-0.2%	-3.0%	-11.0%	-0.4%	-5.2%	-4.5%	-59.4%
14-Day RSI	Jan 16, 26	65.76	+6.4%	+57.6%	-10.8%	+46.4%	+20.7%	+16.0%	-0.2%
Beta	Jan 16, 26	0.47	0.0%	-6.0%	-14.6%	0.0%	-43.4%	-27.7%	-60.8%
ATR	Jan 16, 26	$0.32	+2.2%	-11.2%	-1.5%	+5.5%	-22.1%	+67.8%	+17.8%
Price	Jan 16, 26	$20.66	+1.2%	+5.9%	+8.7%	+5.8%	+12.0%	+75.8%	+95.4%
200-Day SMA	Jan 16, 26	$17.88	+0.1%	+1.8%	+5.0%	+1.0%	+16.5%	+64.8%	+102.5%
50-Day SMA	Jan 16, 26	$20.12	+0.1%	+1.2%	+18.5%	+0.6%	+8.8%	+74.5%	+107.1%

1-Year Volatility History

Date	Value	Change
Jan 16, 2026	23.59%	-0.6%
Dec 31, 2025	23.74%	-4.4%
Dec 31, 2024	24.82%	+25.4%
Dec 31, 2023	19.79%	-19.9%
Dec 31, 2022	24.71%	+9.1%
Dec 31, 2021	22.65%	-60.9%
Dec 31, 2020	57.87%	+284.8%
Dec 31, 2019	15.04%	-19.3%
Dec 31, 2018	18.64%	+7.7%
Dec 31, 2017	17.30%	-25.9%
Dec 31, 2016	23.36%	-25.7%
Dec 31, 2015	31.42%	+47.1%
Dec 31, 2014	21.36%	+9.7%
Dec 31, 2013	19.48%	+32.9%
Dec 31, 2012	14.66%	-42.8%
Dec 31, 2011	25.64%	+2.7%
Dec 31, 2010	24.97%	-27.0%
Dec 31, 2009	34.22%	-42.0%
Dec 31, 2008	59.04%	+173.6%
Dec 31, 2007	21.58%	+15.8%
Dec 31, 2006	18.64%	-0.6%
Dec 31, 2005	18.75%	+25.6%
Dec 31, 2004	14.93%	-21.1%
Dec 31, 2003	18.92%	-36.6%
Dec 31, 2002	29.85%	+0.1%
Dec 31, 2001	29.82%	+6.2%

Date	Value	Change
Dec 31, 2000	28.08%	+6.3%
Dec 31, 1999	26.42%	-13.4%
Dec 31, 1998	30.52%	+26.7%
Dec 31, 1997	24.09%	+32.7%
Dec 31, 1996	18.15%	+24.1%
Dec 31, 1995	14.63%	+4.4%
Dec 31, 1994	14.02%	+15.2%
Dec 31, 1993	12.17%	-7.5%
Dec 31, 1992	13.15%	-9.5%
Dec 31, 1991	14.53%	+3.9%
Dec 31, 1990	13.98%	-26.8%
Dec 31, 1989	19.09%	+13.2%
Dec 31, 1988	16.87%	-35.2%
Dec 31, 1987	26.03%	+14.4%
Dec 31, 1986	22.76%	+34.5%
Dec 31, 1985	16.92%	+2.7%
Dec 31, 1984	16.48%	-11.4%
Dec 31, 1983	18.60%	-26.9%
Dec 31, 1982	25.43%	-6.8%
Dec 31, 1981	27.30%	-12.4%
Dec 31, 1980	31.18%	+38.2%
Dec 31, 1979	22.56%	+1.9%
Dec 31, 1978	22.15%	+37.7%
Dec 31, 1977	16.09%	-5.1%
Dec 31, 1976	16.95%	-12.1%
Dec 31, 1975	19.28%	-

FAQ

What is the current 1-year volatility of MDU?
As of today, MDU 1-year volatility is 23.64%
What 1-year volatility category does MDU fall into?
Based on its current 1-year historical volatility, MDU falls into the low volatility category
What is MDU 1-year volatility 1-year high?
MDU 1-year volatility reached a 1-year high of 27.90% on August 22, 2025
What is MDU 1-year volatility 1-year low?
MDU 1-year volatility reached a 1-year low of 23.59% on January 16, 2026

Data Sources & References

MDU Official Website www.mdu.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/67716/000006771625000087/0000067716-25-000087-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/67716/000006771625000016/0000067716-25-000016-index.htm
MDU Profile on Yahoo Finance finance.yahoo.com/quote/MDU
MDU Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/mdu