What is the current 10-day volatility of PNW?

As of today, PNW 10-day volatility is 20.42%

What 10-day volatility category does PNW fall into?

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

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

PNW 10-day volatility reached a 1-year high of 31.70% on April 17, 2025

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

PNW 10-day volatility reached a 1-year low of 7.92% on February 24, 2025

What is the current 1-month volatility of PNW?

As of today, PNW 1-month volatility is 19.61%

What 1-month volatility category does PNW fall into?

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

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

PNW 1-month volatility reached a 1-year high of 25.23% on May 2, 2025

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

PNW 1-month volatility reached a 1-year low of 10.69% on December 11, 2025

What is the current 3-month volatility of PNW?

As of today, PNW 3-month volatility is 16.68%

What 3-month volatility category does PNW fall into?

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

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

PNW 3-month volatility reached a 1-year high of 21.09% on May 23, 2025

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

PNW 3-month volatility reached a 1-year low of 11.90% on January 5, 2026

What is the current 1-year volatility of PNW?

As of today, PNW 1-year volatility is 17.04%

What 1-year volatility category does PNW fall into?

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

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

PNW 1-year volatility reached a 1-year high of 18.21% on May 28, 2025

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

PNW 1-year volatility reached a 1-year low of 16.51% on January 30, 2026

PNW Stock Volatility History & Chart Since 1973

10-Day

20.42%

February 20, 2026

Summary

Current Value: As of today, PNW 10-day volatility is 20.42%, up +0.69% on February 20, 2026
Value Category: Based on its current 10-day historical volatility, PNW falls into the low volatility category
1-Year High: PNW 10-day volatility reached a 1-year high of 31.70% on April 17, 2025
1-Year Low: PNW 10-day volatility reached a 1-year low of 7.92% on February 24, 2025

10-Day Volatility Chart

Performance

PNW Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Feb 20, 26	20.42%	+0.7%	-2.4%	+106.5%	+73.5%	+75.7%	-11.6%	+47.9%
1-Month Volatility	Feb 20, 26	19.61%	-1.6%	+20.2%	+60.0%	+76.0%	+18.1%	-14.8%	+25.1%
3-Month Volatility	Feb 20, 26	16.68%	-0.1%	+18.6%	+15.9%	+28.9%	-2.7%	-13.8%	-18.8%
1-Year Volatility	Feb 20, 26	17.04%	0.0%	+1.7%	-0.5%	+2.0%	-3.0%	-32.7%	-61.9%
14-Day RSI	Feb 20, 26	64.81	-0.5%	-0.6%	+31.8%	+25.8%	-3.1%	+26.1%	+45.6%
Beta	Feb 20, 26	0.16	0.0%	-15.8%	-27.3%	-15.8%	-23.8%	-68.6%	-84.2%
ATR	Feb 20, 26	$1.93	+2.5%	+33.4%	+46.2%	+80.3%	+32.8%	+22.3%	+33.4%
Price	Feb 20, 26	$98.34	-0.1%	+5.8%	+10.1%	+10.9%	+8.3%	+30.9%	+28.9%
200-Day SMA	Feb 20, 26	$90.47	+0.0%	+0.2%	-0.4%	-0.0%	+6.5%	+23.7%	+15.7%
50-Day SMA	Feb 20, 26	$91.59	+0.2%	+3.0%	+2.3%	+2.9%	+5.8%	+20.8%	+17.6%

10-Day Volatility History

Date	Value	Change
Feb 20, 2026	20.42%	+73.5%
Dec 31, 2025	11.77%	-16.7%
Dec 31, 2024	14.13%	-26.0%
Dec 31, 2023	19.10%	+44.2%
Dec 31, 2022	13.25%	+30.2%
Dec 31, 2021	10.18%	-29.6%
Dec 31, 2020	14.46%	+24.3%
Dec 31, 2019	11.63%	-64.4%
Dec 31, 2018	32.70%	+132.1%
Dec 31, 2017	14.09%	+12.0%
Dec 31, 2016	12.58%	-6.5%
Dec 31, 2015	13.46%	-39.7%
Dec 31, 2014	22.34%	+79.9%
Dec 31, 2013	12.42%	-19.5%
Dec 31, 2012	15.42%	-1.1%
Dec 31, 2011	15.59%	+206.9%
Dec 31, 2010	5.08%	-56.1%
Dec 31, 2009	11.57%	-56.8%
Dec 31, 2008	26.79%	+99.8%
Dec 31, 2007	13.41%	+20.5%
Dec 31, 2006	11.13%	+23.8%
Dec 31, 2005	8.99%	-11.7%
Dec 31, 2004	10.18%	-5.4%
Dec 31, 2003	10.76%	-60.2%
Dec 31, 2002	27.04%	+26.9%
Dec 31, 2001	21.31%	+12.2%
Dec 31, 2000	18.99%	+3.6%

Date	Value	Change
Dec 31, 1999	18.33%	-2.2%
Dec 31, 1998	18.74%	+10.8%
Dec 31, 1997	16.91%	+13.8%
Dec 31, 1996	14.86%	+9.4%
Dec 31, 1995	13.58%	+44.2%
Dec 31, 1994	9.42%	-52.5%
Dec 31, 1993	19.82%	+58.9%
Dec 31, 1992	12.47%	-47.3%
Dec 31, 1991	23.64%	-14.8%
Dec 31, 1990	27.75%	-34.4%
Dec 31, 1989	42.32%	+84.2%
Dec 31, 1988	22.97%	+66.3%
Dec 31, 1987	13.81%	+152.5%
Dec 31, 1986	5.47%	-66.7%
Dec 31, 1985	16.45%	-15.0%
Dec 31, 1984	19.36%	-62.1%
Dec 31, 1983	51.09%	+328.2%
Dec 31, 1982	11.93%	-19.3%
Dec 31, 1981	14.78%	-54.2%
Dec 31, 1980	32.26%	+305.8%
Dec 31, 1979	7.95%	-32.2%
Dec 31, 1978	11.73%	-14.9%
Dec 31, 1977	13.78%	+4.8%
Dec 31, 1976	13.15%	-25.3%
Dec 31, 1975	17.60%	-24.8%
Dec 31, 1974	23.41%	+61.9%
Dec 31, 1973	14.46%	-

FAQ

What is the current 10-day volatility of PNW?
As of today, PNW 10-day volatility is 20.42%
What 10-day volatility category does PNW fall into?
Based on its current 10-day historical volatility, PNW falls into the low volatility category
What is PNW 10-day volatility 1-year high?
PNW 10-day volatility reached a 1-year high of 31.70% on April 17, 2025
What is PNW 10-day volatility 1-year low?
PNW 10-day volatility reached a 1-year low of 7.92% on February 24, 2025

1-Month

19.61%

February 20, 2026

Summary

Current Value: As of today, PNW 1-month volatility is 19.61%, down -1.56% on February 20, 2026
Value Category: Based on its current 1-month historical volatility, PNW falls into the low volatility category
1-Year High: PNW 1-month volatility reached a 1-year high of 25.23% on May 2, 2025
1-Year Low: PNW 1-month volatility reached a 1-year low of 10.69% on December 11, 2025

Performance

PNW Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Feb 20, 26	19.61%	-1.6%	+20.2%	+60.0%	+76.0%	+18.1%	-14.8%	+25.1%
10-Day Volatility	Feb 20, 26	20.42%	+0.7%	-2.4%	+106.5%	+73.5%	+75.7%	-11.6%	+47.9%
3-Month Volatility	Feb 20, 26	16.68%	-0.1%	+18.6%	+15.9%	+28.9%	-2.7%	-13.8%	-18.8%
1-Year Volatility	Feb 20, 26	17.04%	0.0%	+1.7%	-0.5%	+2.0%	-3.0%	-32.7%	-61.9%
14-Day RSI	Feb 20, 26	64.81	-0.5%	-0.6%	+31.8%	+25.8%	-3.1%	+26.1%	+45.6%
Beta	Feb 20, 26	0.16	0.0%	-15.8%	-27.3%	-15.8%	-23.8%	-68.6%	-84.2%
ATR	Feb 20, 26	$1.93	+2.5%	+33.4%	+46.2%	+80.3%	+32.8%	+22.3%	+33.4%
Price	Feb 20, 26	$98.34	-0.1%	+5.8%	+10.1%	+10.9%	+8.3%	+30.9%	+28.9%
200-Day SMA	Feb 20, 26	$90.47	+0.0%	+0.2%	-0.4%	-0.0%	+6.5%	+23.7%	+15.7%
50-Day SMA	Feb 20, 26	$91.59	+0.2%	+3.0%	+2.3%	+2.9%	+5.8%	+20.8%	+17.6%

1-Month Volatility History

Date	Value	Change
Feb 20, 2026	19.61%	+60.3%
Dec 31, 2025	12.23%	-15.4%
Dec 31, 2024	14.46%	-42.6%
Dec 31, 2023	25.20%	+94.3%
Dec 31, 2022	12.97%	+1.4%
Dec 31, 2021	12.79%	-19.9%
Dec 31, 2020	15.96%	+19.5%
Dec 31, 2019	13.36%	-47.9%
Dec 31, 2018	25.64%	+79.8%
Dec 31, 2017	14.26%	-13.2%
Dec 31, 2016	16.43%	-22.6%
Dec 31, 2015	21.24%	+14.3%
Dec 31, 2014	18.58%	+55.9%
Dec 31, 2013	11.92%	+0.9%
Dec 31, 2012	11.81%	-35.7%
Dec 31, 2011	18.36%	+87.3%
Dec 31, 2010	9.80%	-28.4%
Dec 31, 2009	13.69%	-68.0%
Dec 31, 2008	42.77%	+159.1%
Dec 31, 2007	16.51%	+52.9%
Dec 31, 2006	10.80%	-15.0%
Dec 31, 2005	12.71%	+21.7%
Dec 31, 2004	10.44%	+14.2%
Dec 31, 2003	9.14%	-68.8%
Dec 31, 2002	29.25%	+36.5%
Dec 31, 2001	21.43%	+21.5%
Dec 31, 2000	17.64%	-17.8%

Date	Value	Change
Dec 31, 1999	21.47%	-9.8%
Dec 31, 1998	23.80%	+37.7%
Dec 31, 1997	17.29%	+20.9%
Dec 31, 1996	14.30%	-12.6%
Dec 31, 1995	16.36%	+73.3%
Dec 31, 1994	9.44%	-44.8%
Dec 31, 1993	17.09%	+26.0%
Dec 31, 1992	13.56%	-41.0%
Dec 31, 1991	22.97%	-31.0%
Dec 31, 1990	33.28%	-89.8%
Dec 31, 1989	326.87%	+1,404.9%
Dec 31, 1988	21.72%	+72.8%
Dec 31, 1987	12.57%	+25.8%
Dec 31, 1986	9.99%	-43.2%
Dec 31, 1985	17.59%	+2.6%
Dec 31, 1984	17.15%	-61.4%
Dec 31, 1983	44.44%	+141.4%
Dec 31, 1982	18.41%	+7.4%
Dec 31, 1981	17.14%	-35.7%
Dec 31, 1980	26.67%	+70.3%
Dec 31, 1979	15.66%	+31.7%
Dec 31, 1978	11.89%	+11.3%
Dec 31, 1977	10.68%	-22.6%
Dec 31, 1976	13.80%	-24.1%
Dec 31, 1975	18.18%	-39.1%
Dec 31, 1974	29.87%	-33.8%
Dec 31, 1973	45.15%	-

FAQ

What is the current 1-month volatility of PNW?
As of today, PNW 1-month volatility is 19.61%
What 1-month volatility category does PNW fall into?
Based on its current 1-month historical volatility, PNW falls into the low volatility category
What is PNW 1-month volatility 1-year high?
PNW 1-month volatility reached a 1-year high of 25.23% on May 2, 2025
What is PNW 1-month volatility 1-year low?
PNW 1-month volatility reached a 1-year low of 10.69% on December 11, 2025

3-Month

16.68%

February 20, 2026

Summary

Current Value: As of today, PNW 3-month volatility is 16.68%, down -0.12% on February 20, 2026
Value Category: Based on its current 3-month historical volatility, PNW falls into the low volatility category
1-Year High: PNW 3-month volatility reached a 1-year high of 21.09% on May 23, 2025
1-Year Low: PNW 3-month volatility reached a 1-year low of 11.90% on January 5, 2026

Performance

PNW Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Feb 20, 26	16.68%	-0.1%	+18.6%	+15.9%	+28.9%	-2.7%	-13.8%	-18.8%
10-Day Volatility	Feb 20, 26	20.42%	+0.7%	-2.4%	+106.5%	+73.5%	+75.7%	-11.6%	+47.9%
1-Month Volatility	Feb 20, 26	19.61%	-1.6%	+20.2%	+60.0%	+76.0%	+18.1%	-14.8%	+25.1%
1-Year Volatility	Feb 20, 26	17.04%	0.0%	+1.7%	-0.5%	+2.0%	-3.0%	-32.7%	-61.9%
14-Day RSI	Feb 20, 26	64.81	-0.5%	-0.6%	+31.8%	+25.8%	-3.1%	+26.1%	+45.6%
Beta	Feb 20, 26	0.16	0.0%	-15.8%	-27.3%	-15.8%	-23.8%	-68.6%	-84.2%
ATR	Feb 20, 26	$1.93	+2.5%	+33.4%	+46.2%	+80.3%	+32.8%	+22.3%	+33.4%
Price	Feb 20, 26	$98.34	-0.1%	+5.8%	+10.1%	+10.9%	+8.3%	+30.9%	+28.9%
200-Day SMA	Feb 20, 26	$90.47	+0.0%	+0.2%	-0.4%	-0.0%	+6.5%	+23.7%	+15.7%
50-Day SMA	Feb 20, 26	$91.59	+0.2%	+3.0%	+2.3%	+2.9%	+5.8%	+20.8%	+17.6%

3-Month Volatility History

Date	Value	Change
Feb 20, 2026	16.68%	+25.9%
Dec 31, 2025	13.25%	-27.0%
Dec 31, 2024	18.16%	-22.8%
Dec 31, 2023	23.53%	-11.1%
Dec 31, 2022	26.47%	+4.6%
Dec 31, 2021	25.30%	-6.2%
Dec 31, 2020	26.97%	+71.0%
Dec 31, 2019	15.77%	-26.0%
Dec 31, 2018	21.30%	+62.1%
Dec 31, 2017	13.14%	-30.6%
Dec 31, 2016	18.93%	-10.1%
Dec 31, 2015	21.06%	+24.0%
Dec 31, 2014	16.99%	+13.4%
Dec 31, 2013	14.98%	+20.1%
Dec 31, 2012	12.47%	-43.5%
Dec 31, 2011	22.09%	+94.6%
Dec 31, 2010	11.35%	-41.9%
Dec 31, 2009	19.53%	-66.6%
Dec 31, 2008	58.55%	+168.0%
Dec 31, 2007	21.85%	+122.5%
Dec 31, 2006	9.82%	-46.9%
Dec 31, 2005	18.49%	+41.1%
Dec 31, 2004	13.10%	-3.7%
Dec 31, 2003	13.61%	-71.4%
Dec 31, 2002	47.52%	+109.9%
Dec 31, 2001	22.64%	-10.8%
Dec 31, 2000	25.37%	+18.7%

Date	Value	Change
Dec 31, 1999	21.38%	-14.1%
Dec 31, 1998	24.90%	+66.7%
Dec 31, 1997	14.94%	+7.3%
Dec 31, 1996	13.92%	+2.1%
Dec 31, 1995	13.63%	-19.5%
Dec 31, 1994	16.94%	-28.8%
Dec 31, 1993	23.78%	+66.4%
Dec 31, 1992	14.29%	-52.8%
Dec 31, 1991	30.25%	-20.2%
Dec 31, 1990	37.89%	-81.4%
Dec 31, 1989	204.02%	+407.5%
Dec 31, 1988	40.20%	+45.2%
Dec 31, 1987	27.68%	+105.6%
Dec 31, 1986	13.46%	-19.4%
Dec 31, 1985	16.71%	-26.8%
Dec 31, 1984	22.83%	-27.7%
Dec 31, 1983	31.56%	+40.0%
Dec 31, 1982	22.55%	+19.4%
Dec 31, 1981	18.88%	-19.7%
Dec 31, 1980	23.52%	+46.5%
Dec 31, 1979	16.06%	-17.7%
Dec 31, 1978	19.52%	+55.7%
Dec 31, 1977	12.54%	-18.8%
Dec 31, 1976	15.45%	-38.9%
Dec 31, 1975	25.30%	-24.9%
Dec 31, 1974	33.70%	+2.0%
Dec 31, 1973	33.05%	-

FAQ

What is the current 3-month volatility of PNW?
As of today, PNW 3-month volatility is 16.68%
What 3-month volatility category does PNW fall into?
Based on its current 3-month historical volatility, PNW falls into the low volatility category
What is PNW 3-month volatility 1-year high?
PNW 3-month volatility reached a 1-year high of 21.09% on May 23, 2025
What is PNW 3-month volatility 1-year low?
PNW 3-month volatility reached a 1-year low of 11.90% on January 5, 2026

1-Year

17.04%

February 20, 2026

Summary

Current Value: As of today, PNW 1-year volatility is 17.04%, unchanged on February 20, 2026
Value Category: Based on its current 1-year historical volatility, PNW falls into the low volatility category
1-Year High: PNW 1-year volatility reached a 1-year high of 18.21% on May 28, 2025
1-Year Low: PNW 1-year volatility reached a 1-year low of 16.51% on January 30, 2026

Performance

PNW Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Feb 20, 26	17.04%	0.0%	+1.7%	-0.5%	+2.0%	-3.0%	-32.7%	-61.9%
10-Day Volatility	Feb 20, 26	20.42%	+0.7%	-2.4%	+106.5%	+73.5%	+75.7%	-11.6%	+47.9%
1-Month Volatility	Feb 20, 26	19.61%	-1.6%	+20.2%	+60.0%	+76.0%	+18.1%	-14.8%	+25.1%
3-Month Volatility	Feb 20, 26	16.68%	-0.1%	+18.6%	+15.9%	+28.9%	-2.7%	-13.8%	-18.8%
1-Year Volatility	Feb 20, 26	17.04%	0.0%	+1.7%	-0.5%	+2.0%	-3.0%	-32.7%	-61.9%
14-Day RSI	Feb 20, 26	64.81	-0.5%	-0.6%	+31.8%	+25.8%	-3.1%	+26.1%	+45.6%
Beta	Feb 20, 26	0.16	0.0%	-15.8%	-27.3%	-15.8%	-23.8%	-68.6%	-84.2%
ATR	Feb 20, 26	$1.93	+2.5%	+33.4%	+46.2%	+80.3%	+32.8%	+22.3%	+33.4%
Price	Feb 20, 26	$98.34	-0.1%	+5.8%	+10.1%	+10.9%	+8.3%	+30.9%	+28.9%
200-Day SMA	Feb 20, 26	$90.47	+0.0%	+0.2%	-0.4%	-0.0%	+6.5%	+23.7%	+15.7%
50-Day SMA	Feb 20, 26	$91.59	+0.2%	+3.0%	+2.3%	+2.9%	+5.8%	+20.8%	+17.6%

1-Year Volatility History

Date	Value	Change
Feb 20, 2026	17.04%	+2.0%
Dec 31, 2025	16.70%	-8.9%
Dec 31, 2024	18.34%	-12.4%
Dec 31, 2023	20.93%	-16.1%
Dec 31, 2022	24.95%	+12.0%
Dec 31, 2021	22.28%	-49.7%
Dec 31, 2020	44.26%	+192.5%
Dec 31, 2019	15.13%	-17.0%
Dec 31, 2018	18.23%	+57.6%
Dec 31, 2017	11.57%	-34.2%
Dec 31, 2016	17.58%	-9.2%
Dec 31, 2015	19.36%	+20.0%
Dec 31, 2014	16.14%	+2.0%
Dec 31, 2013	15.83%	+29.4%
Dec 31, 2012	12.23%	-38.0%
Dec 31, 2011	19.72%	+8.8%
Dec 31, 2010	18.13%	-28.8%
Dec 31, 2009	25.45%	-28.6%
Dec 31, 2008	35.62%	+73.8%
Dec 31, 2007	20.50%	+51.7%
Dec 31, 2006	13.51%	-10.1%
Dec 31, 2005	15.02%	+6.0%
Dec 31, 2004	14.17%	-31.9%
Dec 31, 2003	20.81%	-42.4%
Dec 31, 2002	36.14%	+30.7%
Dec 31, 2001	27.65%	-13.9%
Dec 31, 2000	32.11%	+50.3%

Date	Value	Change
Dec 31, 1999	21.37%	+10.0%
Dec 31, 1998	19.43%	+22.3%
Dec 31, 1997	15.89%	-7.6%
Dec 31, 1996	17.19%	+12.1%
Dec 31, 1995	15.33%	-37.1%
Dec 31, 1994	24.36%	+41.8%
Dec 31, 1993	17.18%	-1.2%
Dec 31, 1992	17.38%	-38.5%
Dec 31, 1991	28.25%	-46.4%
Dec 31, 1990	52.67%	-49.7%
Dec 31, 1989	104.62%	+314.2%
Dec 31, 1988	25.26%	+14.7%
Dec 31, 1987	22.03%	+7.1%
Dec 31, 1986	20.57%	+18.1%
Dec 31, 1985	17.42%	-25.5%
Dec 31, 1984	23.39%	+6.5%
Dec 31, 1983	21.97%	+2.3%
Dec 31, 1982	21.47%	+4.7%
Dec 31, 1981	20.51%	-5.0%
Dec 31, 1980	21.58%	+47.2%
Dec 31, 1979	14.66%	-10.3%
Dec 31, 1978	16.35%	+0.6%
Dec 31, 1977	16.25%	-16.6%
Dec 31, 1976	19.48%	-32.7%
Dec 31, 1975	28.96%	-5.2%
Dec 31, 1974	30.54%	+7.5%
Dec 31, 1973	28.40%	-

FAQ

What is the current 1-year volatility of PNW?
As of today, PNW 1-year volatility is 17.04%
What 1-year volatility category does PNW fall into?
Based on its current 1-year historical volatility, PNW falls into the low volatility category
What is PNW 1-year volatility 1-year high?
PNW 1-year volatility reached a 1-year high of 18.21% on May 28, 2025
What is PNW 1-year volatility 1-year low?
PNW 1-year volatility reached a 1-year low of 16.51% on January 30, 2026

Data Sources & References

PNW Official Website www.pinnaclewest.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/764622/000076462225000087/0000764622-25-000087-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/764622/000076462225000023/0000764622-25-000023-index.htm
PNW Profile on Yahoo Finance finance.yahoo.com/quote/PNW
PNW Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/pnw