What is the current 10-day volatility of NWE?

As of today, NWE 10-day volatility is 19.81%

What 10-day volatility category does NWE fall into?

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

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

NWE 10-day volatility reached a 1-year high of 38.58% on August 28, 2025

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

NWE 10-day volatility reached a 1-year low of 10.61% on May 14, 2025

What is the current 1-month volatility of NWE?

As of today, NWE 1-month volatility is 22.02%

What 1-month volatility category does NWE fall into?

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

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

NWE 1-month volatility reached a 1-year high of 29.20% on January 12, 2025

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

NWE 1-month volatility reached a 1-year low of 14.48% on July 25, 2025

What is the current 3-month volatility of NWE?

As of today, NWE 3-month volatility is 21.44%

What 3-month volatility category does NWE fall into?

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

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

NWE 3-month volatility reached a 1-year high of 25.00% on January 25, 2025

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

NWE 3-month volatility reached a 1-year low of 16.90% on August 18, 2025

What is the current 1-year volatility of NWE?

As of today, NWE 1-year volatility is 20.50%

What 1-year volatility category does NWE fall into?

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

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

NWE 1-year volatility reached a 1-year high of 21.44% on November 15, 2025

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

NWE 1-year volatility reached a 1-year low of 19.36% on February 27, 2025

NWE Stock Volatility History & Chart Since 2008

10-Day

19.81%

January 9, 2026

Summary

Current Value: As of today, NWE 10-day volatility is 19.81%, up +1.28% on January 9, 2026
Value Category: Based on its current 10-day historical volatility, NWE falls into the low volatility category
1-Year High: NWE 10-day volatility reached a 1-year high of 38.58% on August 28, 2025
1-Year Low: NWE 10-day volatility reached a 1-year low of 10.61% on May 14, 2025

10-Day Volatility Chart

Performance

NWE Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Jan 9, 26	19.81%	+1.3%	+8.8%	+9.0%	-3.5%	+6.3%	+8.9%	-39.1%
1-Month Volatility	Jan 9, 26	22.02%	+0.2%	+11.5%	+37.8%	+16.6%	-17.6%	+31.7%	-28.2%
3-Month Volatility	Jan 9, 26	21.44%	-0.6%	+9.7%	+4.7%	+3.4%	-7.2%	-10.7%	-45.9%
1-Year Volatility	Jan 9, 26	20.50%	-0.8%	-2.7%	-2.7%	-0.5%	+2.4%	-12.6%	-61.6%
14-Day RSI	Jan 9, 26	54.37	-2.6%	-4.1%	-4.2%	+16.1%	+17.4%	+0.3%	+9.9%
Beta	Jan 9, 26	0.22	0.0%	-8.3%	-8.3%	0.0%	-47.6%	-40.5%	-81.2%
ATR	Jan 9, 26	$1.40	+2.4%	+5.0%	+54.3%	+19.9%	+33.6%	+22.3%	-13.2%
Price	Jan 9, 26	$66.01	-0.3%	-0.4%	+13.2%	+2.3%	+25.8%	+12.7%	+16.0%
200-Day SMA	Jan 9, 26	$58.15	+0.1%	+1.8%	+5.7%	+0.5%	+10.3%	+3.0%	+4.5%
50-Day SMA	Jan 9, 26	$65.15	+0.1%	+4.0%	+14.7%	+0.7%	+21.3%	+15.7%	+14.2%

10-Day Volatility History

Date	Value	Change
Jan 9, 2026	19.81%	-3.6%
Dec 31, 2025	20.54%	-36.0%
Dec 31, 2024	32.10%	+70.9%
Dec 31, 2023	18.78%	+48.3%
Dec 31, 2022	12.66%	-22.4%
Dec 31, 2021	16.31%	-25.4%
Dec 31, 2020	21.87%	+80.1%
Dec 31, 2019	12.14%	-61.7%
Dec 31, 2018	31.68%	+78.2%
Dec 31, 2017	17.78%	+104.6%

Date	Value	Change
Dec 31, 2016	8.69%	-47.4%
Dec 31, 2015	16.51%	-27.1%
Dec 31, 2014	22.64%	+132.0%
Dec 31, 2013	9.76%	-53.3%
Dec 31, 2012	20.92%	+7.4%
Dec 31, 2011	19.48%	+88.8%
Dec 31, 2010	10.32%	-20.1%
Dec 31, 2009	12.91%	-59.8%
Dec 31, 2008	32.10%	-

FAQ

What is the current 10-day volatility of NWE?
As of today, NWE 10-day volatility is 19.81%
What 10-day volatility category does NWE fall into?
Based on its current 10-day historical volatility, NWE falls into the low volatility category
What is NWE 10-day volatility 1-year high?
NWE 10-day volatility reached a 1-year high of 38.58% on August 28, 2025
What is NWE 10-day volatility 1-year low?
NWE 10-day volatility reached a 1-year low of 10.61% on May 14, 2025

1-Month

22.02%

January 9, 2026

Summary

Current Value: As of today, NWE 1-month volatility is 22.02%, up +0.23% on January 9, 2026
Value Category: Based on its current 1-month historical volatility, NWE falls into the low volatility category
1-Year High: NWE 1-month volatility reached a 1-year high of 29.20% on January 12, 2025
1-Year Low: NWE 1-month volatility reached a 1-year low of 14.48% on July 25, 2025

Performance

NWE Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Jan 9, 26	22.02%	+0.2%	+11.5%	+37.8%	+16.6%	-17.6%	+31.7%	-28.2%
10-Day Volatility	Jan 9, 26	19.81%	+1.3%	+8.8%	+9.0%	-3.5%	+6.3%	+8.9%	-39.1%
3-Month Volatility	Jan 9, 26	21.44%	-0.6%	+9.7%	+4.7%	+3.4%	-7.2%	-10.7%	-45.9%
1-Year Volatility	Jan 9, 26	20.50%	-0.8%	-2.7%	-2.7%	-0.5%	+2.4%	-12.6%	-61.6%
14-Day RSI	Jan 9, 26	54.37	-2.6%	-4.1%	-4.2%	+16.1%	+17.4%	+0.3%	+9.9%
Beta	Jan 9, 26	0.22	0.0%	-8.3%	-8.3%	0.0%	-47.6%	-40.5%	-81.2%
ATR	Jan 9, 26	$1.40	+2.4%	+5.0%	+54.3%	+19.9%	+33.6%	+22.3%	-13.2%
Price	Jan 9, 26	$66.01	-0.3%	-0.4%	+13.2%	+2.3%	+25.8%	+12.7%	+16.0%
200-Day SMA	Jan 9, 26	$58.15	+0.1%	+1.8%	+5.7%	+0.5%	+10.3%	+3.0%	+4.5%
50-Day SMA	Jan 9, 26	$65.15	+0.1%	+4.0%	+14.7%	+0.7%	+21.3%	+15.7%	+14.2%

1-Month Volatility History

Date	Value	Change
Jan 9, 2026	21.78%	+14.6%
Dec 31, 2025	19.01%	-22.3%
Dec 31, 2024	24.47%	+1.8%
Dec 31, 2023	24.03%	+42.9%
Dec 31, 2022	16.82%	+1.3%
Dec 31, 2021	16.60%	-27.3%
Dec 31, 2020	22.83%	+64.1%
Dec 31, 2019	13.91%	-40.6%
Dec 31, 2018	23.43%	+50.5%
Dec 31, 2017	15.57%	+3.8%

Date	Value	Change
Dec 31, 2016	15.00%	-25.3%
Dec 31, 2015	20.08%	-1.9%
Dec 31, 2014	20.47%	+21.9%
Dec 31, 2013	16.79%	-4.7%
Dec 31, 2012	17.61%	-26.2%
Dec 31, 2011	23.85%	+83.7%
Dec 31, 2010	12.98%	+5.3%
Dec 31, 2009	12.33%	-69.1%
Dec 31, 2008	39.95%	-

FAQ

What is the current 1-month volatility of NWE?
As of today, NWE 1-month volatility is 22.02%
What 1-month volatility category does NWE fall into?
Based on its current 1-month historical volatility, NWE falls into the low volatility category
What is NWE 1-month volatility 1-year high?
NWE 1-month volatility reached a 1-year high of 29.20% on January 12, 2025
What is NWE 1-month volatility 1-year low?
NWE 1-month volatility reached a 1-year low of 14.48% on July 25, 2025

3-Month

21.44%

January 9, 2026

Summary

Current Value: As of today, NWE 3-month volatility is 21.44%, down -0.60% on January 9, 2026
Value Category: Based on its current 3-month historical volatility, NWE falls into the low volatility category
1-Year High: NWE 3-month volatility reached a 1-year high of 25.00% on January 25, 2025
1-Year Low: NWE 3-month volatility reached a 1-year low of 16.90% on August 18, 2025

Performance

NWE Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Jan 9, 26	21.44%	-0.6%	+9.7%	+4.7%	+3.4%	-7.2%	-10.7%	-45.9%
10-Day Volatility	Jan 9, 26	19.81%	+1.3%	+8.8%	+9.0%	-3.5%	+6.3%	+8.9%	-39.1%
1-Month Volatility	Jan 9, 26	22.02%	+0.2%	+11.5%	+37.8%	+16.6%	-17.6%	+31.7%	-28.2%
1-Year Volatility	Jan 9, 26	20.50%	-0.8%	-2.7%	-2.7%	-0.5%	+2.4%	-12.6%	-61.6%
14-Day RSI	Jan 9, 26	54.37	-2.6%	-4.1%	-4.2%	+16.1%	+17.4%	+0.3%	+9.9%
Beta	Jan 9, 26	0.22	0.0%	-8.3%	-8.3%	0.0%	-47.6%	-40.5%	-81.2%
ATR	Jan 9, 26	$1.40	+2.4%	+5.0%	+54.3%	+19.9%	+33.6%	+22.3%	-13.2%
Price	Jan 9, 26	$66.01	-0.3%	-0.4%	+13.2%	+2.3%	+25.8%	+12.7%	+16.0%
200-Day SMA	Jan 9, 26	$58.15	+0.1%	+1.8%	+5.7%	+0.5%	+10.3%	+3.0%	+4.5%
50-Day SMA	Jan 9, 26	$65.15	+0.1%	+4.0%	+14.7%	+0.7%	+21.3%	+15.7%	+14.2%

3-Month Volatility History

Date	Value	Change
Jan 9, 2026	21.42%	+2.2%
Dec 31, 2025	20.95%	-6.7%
Dec 31, 2024	22.46%	-5.8%
Dec 31, 2023	23.85%	-4.3%
Dec 31, 2022	24.92%	+13.0%
Dec 31, 2021	22.06%	-41.7%
Dec 31, 2020	37.82%	+181.0%
Dec 31, 2019	13.46%	-35.8%
Dec 31, 2018	20.95%	+61.9%
Dec 31, 2017	12.94%	-35.8%

Date	Value	Change
Dec 31, 2016	20.16%	+5.5%
Dec 31, 2015	19.11%	-4.1%
Dec 31, 2014	19.93%	+36.6%
Dec 31, 2013	14.59%	-8.6%
Dec 31, 2012	15.97%	-39.4%
Dec 31, 2011	26.36%	+84.9%
Dec 31, 2010	14.26%	-8.4%
Dec 31, 2009	15.57%	-76.7%
Dec 31, 2008	66.70%	-

FAQ

What is the current 3-month volatility of NWE?
As of today, NWE 3-month volatility is 21.44%
What 3-month volatility category does NWE fall into?
Based on its current 3-month historical volatility, NWE falls into the low volatility category
What is NWE 3-month volatility 1-year high?
NWE 3-month volatility reached a 1-year high of 25.00% on January 25, 2025
What is NWE 3-month volatility 1-year low?
NWE 3-month volatility reached a 1-year low of 16.90% on August 18, 2025

1-Year

20.50%

January 9, 2026

Summary

Current Value: As of today, NWE 1-year volatility is 20.50%, down -0.82% on January 9, 2026
Value Category: Based on its current 1-year historical volatility, NWE falls into the low volatility category
1-Year High: NWE 1-year volatility reached a 1-year high of 21.44% on November 15, 2025
1-Year Low: NWE 1-year volatility reached a 1-year low of 19.36% on February 27, 2025

Performance

NWE Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Jan 9, 26	20.50%	-0.8%	-2.7%	-2.7%	-0.5%	+2.4%	-12.6%	-61.6%
10-Day Volatility	Jan 9, 26	19.81%	+1.3%	+8.8%	+9.0%	-3.5%	+6.3%	+8.9%	-39.1%
1-Month Volatility	Jan 9, 26	22.02%	+0.2%	+11.5%	+37.8%	+16.6%	-17.6%	+31.7%	-28.2%
3-Month Volatility	Jan 9, 26	21.44%	-0.6%	+9.7%	+4.7%	+3.4%	-7.2%	-10.7%	-45.9%
1-Year Volatility	Jan 9, 26	20.50%	-0.8%	-2.7%	-2.7%	-0.5%	+2.4%	-12.6%	-61.6%
14-Day RSI	Jan 9, 26	54.37	-2.6%	-4.1%	-4.2%	+16.1%	+17.4%	+0.3%	+9.9%
Beta	Jan 9, 26	0.22	0.0%	-8.3%	-8.3%	0.0%	-47.6%	-40.5%	-81.2%
ATR	Jan 9, 26	$1.40	+2.4%	+5.0%	+54.3%	+19.9%	+33.6%	+22.3%	-13.2%
Price	Jan 9, 26	$66.01	-0.3%	-0.4%	+13.2%	+2.3%	+25.8%	+12.7%	+16.0%
200-Day SMA	Jan 9, 26	$58.15	+0.1%	+1.8%	+5.7%	+0.5%	+10.3%	+3.0%	+4.5%
50-Day SMA	Jan 9, 26	$65.15	+0.1%	+4.0%	+14.7%	+0.7%	+21.3%	+15.7%	+14.2%

1-Year Volatility History

Date	Value	Change
Jan 9, 2026	20.64%	+0.2%
Dec 31, 2025	20.60%	+4.1%
Dec 31, 2024	19.79%	-2.0%
Dec 31, 2023	20.19%	-13.4%
Dec 31, 2022	23.32%	+9.6%
Dec 31, 2021	21.27%	-59.9%
Dec 31, 2020	52.98%	+273.9%
Dec 31, 2019	14.17%	-23.4%
Dec 31, 2018	18.51%	+49.8%
Dec 31, 2017	12.36%	-33.2%

Date	Value	Change
Dec 31, 2016	18.49%	-3.6%
Dec 31, 2015	19.18%	+18.0%
Dec 31, 2014	16.25%	+5.6%
Dec 31, 2013	15.39%	+14.6%
Dec 31, 2012	13.43%	-44.8%
Dec 31, 2011	24.32%	+8.3%
Dec 31, 2010	22.46%	-6.3%
Dec 31, 2009	23.98%	-37.4%
Dec 31, 2008	38.31%	-

FAQ

What is the current 1-year volatility of NWE?
As of today, NWE 1-year volatility is 20.50%
What 1-year volatility category does NWE fall into?
Based on its current 1-year historical volatility, NWE falls into the low volatility category
What is NWE 1-year volatility 1-year high?
NWE 1-year volatility reached a 1-year high of 21.44% on November 15, 2025
What is NWE 1-year volatility 1-year low?
NWE 1-year volatility reached a 1-year low of 19.36% on February 27, 2025

Data Sources & References

NWE Official Website www.northwesternenergy.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/1993004/000199300425000184/0001993004-25-000184-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1993004/000199300425000021/0001993004-25-000021-index.htm
NWE Profile on Yahoo Finance finance.yahoo.com/quote/NWE
NWE Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/nwe