What is the current 10-day volatility of SO?

As of today, SO 10-day volatility is 10.25%

What 10-day volatility category does SO fall into?

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

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

SO 10-day volatility reached a 1-year high of 34.95% on February 20, 2026

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

SO 10-day volatility reached a 1-year low of 7.59% on January 6, 2026

What is the current 1-month volatility of SO?

As of today, SO 1-month volatility is 13.50%

What 1-month volatility category does SO fall into?

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

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

SO 1-month volatility reached a 1-year high of 26.63% on February 27, 2026

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

SO 1-month volatility reached a 1-year low of 8.94% on September 19, 2025

What is the current 3-month volatility of SO?

As of today, SO 3-month volatility is 16.58%

What 3-month volatility category does SO fall into?

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

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

SO 3-month volatility reached a 1-year high of 20.88% on May 11, 2026

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

SO 3-month volatility reached a 1-year low of 11.67% on September 23, 2025

What is the current 1-year volatility of SO?

As of today, SO 1-year volatility is 17.25%

What 1-year volatility category does SO fall into?

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

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

SO 1-year volatility reached a 1-year high of 17.95% on October 14, 2025

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

SO 1-year volatility reached a 1-year low of 15.66% on May 29, 2026

SO Stock Volatility History & Chart Since 1982

10-Day

10.25%

September 11, 2026

Summary

Current Value: As of today, SO 10-day volatility is 10.25%, down -1.73% on September 11, 2026
Value Category: Based on its current 10-day historical volatility, SO falls into the very low volatility category
1-Year High: SO 10-day volatility reached a 1-year high of 34.95% on February 20, 2026
1-Year Low: SO 10-day volatility reached a 1-year low of 7.59% on January 6, 2026

10-Day Volatility Chart

Performance

SO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Sep 11, 26	10.25%	-1.7%	-19.5%	-60.2%	-35.7%	+32.1%	-45.3%	-30.0%
1-Month Volatility	Sep 11, 26	13.50%	+1.3%	-14.8%	-33.0%	-15.5%	+18.5%	-7.8%	-3.2%
3-Month Volatility	Sep 11, 26	16.58%	+0.1%	-9.7%	-11.5%	+6.2%	+35.9%	-9.7%	+13.6%
1-Year Volatility	Sep 11, 26	17.25%	+0.2%	+1.1%	+5.8%	-1.9%	-3.3%	-18.6%	-1.9%
14-Day RSI	Sep 11, 26	31.77	-6.8%	-27.4%	-41.9%	-33.4%	-31.8%	-51.4%	-37.5%
Beta	Sep 11, 26	-0.24	-4.3%	0.0%	-50.0%	-1300.0%	-700.0%	-137.5%	-146.2%
ATR	Sep 11, 26	$1.44	+1.2%	-17.0%	-16.2%	+20.6%	+31.9%	+24.0%	+70.6%
Price	Sep 14, 26	$86.75	-0.5%	-6.5%	-7.7%	-0.5%	-6.0%	+22.4%	+31.5%
200-Day SMA	Sep 11, 26	$92.38	-0.0%	-0.2%	-0.1%	+1.1%	+3.7%	+32.9%	+47.9%
50-Day SMA	Sep 11, 26	$92.74	-0.2%	-1.9%	-1.3%	+3.4%	-0.8%	+33.5%	+43.3%
20-Day SMA	Sep 11, 26	$89.52	-0.3%	-4.9%	-3.5%	+3.7%	-3.5%	+31.7%	+34.9%

10-Day Volatility History

Date	Value	Change
Sep 14, 2026	10.25%	-35.7%
Dec 31, 2025	15.94%	-7.1%
Dec 31, 2024	17.15%	+19.6%
Dec 31, 2023	14.34%	-18.2%
Dec 31, 2022	17.54%	+53.3%
Dec 31, 2021	11.44%	-18.3%
Dec 31, 2020	14.01%	-9.8%
Dec 31, 2019	15.53%	-44.3%
Dec 31, 2018	27.86%	+115.8%
Dec 31, 2017	12.91%	+50.6%
Dec 31, 2016	8.57%	-17.4%
Dec 31, 2015	10.37%	-47.4%
Dec 31, 2014	19.71%	+81.7%
Dec 31, 2013	10.85%	-28.6%
Dec 31, 2012	15.19%	+12.3%
Dec 31, 2011	13.53%	+123.3%
Dec 31, 2010	6.06%	-46.4%
Dec 31, 2009	11.30%	-38.5%
Dec 31, 2008	18.36%	+11.7%
Dec 31, 2007	16.43%	+73.7%
Dec 31, 2006	9.46%	-3.9%
Dec 31, 2005	9.84%	-26.1%
Dec 31, 2004	13.32%	+103.4%

Date	Value	Change
Dec 31, 2003	6.55%	-59.3%
Dec 31, 2002	16.09%	-26.1%
Dec 31, 2001	21.78%	-30.3%
Dec 31, 2000	31.25%	+66.6%
Dec 31, 1999	18.76%	-16.7%
Dec 31, 1998	22.51%	+5.9%
Dec 31, 1997	21.25%	+31.9%
Dec 31, 1996	16.11%	+20.0%
Dec 31, 1995	13.43%	-7.1%
Dec 31, 1994	14.45%	+28.2%
Dec 31, 1993	11.27%	-16.4%
Dec 31, 1992	13.48%	-42.8%
Dec 31, 1991	23.56%	+44.1%
Dec 31, 1990	16.35%	+32.1%
Dec 31, 1989	12.38%	+1.1%
Dec 31, 1988	12.24%	-51.0%
Dec 31, 1987	24.98%	+71.9%
Dec 31, 1986	14.53%	-23.2%
Dec 31, 1985	18.93%	-33.7%
Dec 31, 1984	28.55%	+20.7%
Dec 31, 1983	23.66%	+93.9%
Dec 31, 1982	12.20%	-

FAQ

What is the current 10-day volatility of SO?: As of today, SO 10-day volatility is 10.25%
What 10-day volatility category does SO fall into?: Based on its current 10-day historical volatility, SO falls into the very low volatility category
What is SO 10-day volatility 1-year high?: SO 10-day volatility reached a 1-year high of 34.95% on February 20, 2026
What is SO 10-day volatility 1-year low?: SO 10-day volatility reached a 1-year low of 7.59% on January 6, 2026

1-Month

13.50%

September 11, 2026

Summary

Current Value: As of today, SO 1-month volatility is 13.50%, up +1.28% on September 11, 2026
Value Category: Based on its current 1-month historical volatility, SO falls into the very low volatility category
1-Year High: SO 1-month volatility reached a 1-year high of 26.63% on February 27, 2026
1-Year Low: SO 1-month volatility reached a 1-year low of 8.94% on September 19, 2025

Performance

SO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Sep 11, 26	13.50%	+1.3%	-14.8%	-33.0%	-15.5%	+18.5%	-7.8%	-3.2%
10-Day Volatility	Sep 11, 26	10.25%	-1.7%	-19.5%	-60.2%	-35.7%	+32.1%	-45.3%	-30.0%
3-Month Volatility	Sep 11, 26	16.58%	+0.1%	-9.7%	-11.5%	+6.2%	+35.9%	-9.7%	+13.6%
1-Year Volatility	Sep 11, 26	17.25%	+0.2%	+1.1%	+5.8%	-1.9%	-3.3%	-18.6%	-1.9%
14-Day RSI	Sep 11, 26	31.77	-6.8%	-27.4%	-41.9%	-33.4%	-31.8%	-51.4%	-37.5%
Beta	Sep 11, 26	-0.24	-4.3%	0.0%	-50.0%	-1300.0%	-700.0%	-137.5%	-146.2%
ATR	Sep 11, 26	$1.44	+1.2%	-17.0%	-16.2%	+20.6%	+31.9%	+24.0%	+70.6%
Price	Sep 14, 26	$86.75	-0.5%	-6.5%	-7.7%	-0.5%	-6.0%	+22.4%	+31.5%
200-Day SMA	Sep 11, 26	$92.38	-0.0%	-0.2%	-0.1%	+1.1%	+3.7%	+32.9%	+47.9%
50-Day SMA	Sep 11, 26	$92.74	-0.2%	-1.9%	-1.3%	+3.4%	-0.8%	+33.5%	+43.3%
20-Day SMA	Sep 11, 26	$89.52	-0.3%	-4.9%	-3.5%	+3.7%	-3.5%	+31.7%	+34.9%

1-Month Volatility History

Date	Value	Change
Sep 14, 2026	13.50%	-22.1%
Dec 31, 2025	17.33%	+7.5%
Dec 31, 2024	16.12%	-22.8%
Dec 31, 2023	20.87%	+9.1%
Dec 31, 2022	19.13%	+31.1%
Dec 31, 2021	14.59%	-8.9%
Dec 31, 2020	16.02%	-6.1%
Dec 31, 2019	17.06%	-25.7%
Dec 31, 2018	22.95%	+54.8%
Dec 31, 2017	14.83%	+35.3%
Dec 31, 2016	10.96%	-31.9%
Dec 31, 2015	16.09%	+7.6%
Dec 31, 2014	14.96%	+32.9%
Dec 31, 2013	11.26%	-11.3%
Dec 31, 2012	12.70%	-7.2%
Dec 31, 2011	13.69%	+68.2%
Dec 31, 2010	8.14%	-35.7%
Dec 31, 2009	12.66%	-57.1%
Dec 31, 2008	29.49%	+83.1%
Dec 31, 2007	16.11%	+67.6%
Dec 31, 2006	9.61%	-5.7%
Dec 31, 2005	10.19%	-21.0%
Dec 31, 2004	12.90%	+94.0%

Date	Value	Change
Dec 31, 2003	6.65%	-68.0%
Dec 31, 2002	20.80%	-2.4%
Dec 31, 2001	21.32%	-45.3%
Dec 31, 2000	38.99%	+45.7%
Dec 31, 1999	26.76%	+36.0%
Dec 31, 1998	19.67%	-11.7%
Dec 31, 1997	22.28%	+12.6%
Dec 31, 1996	19.78%	+35.2%
Dec 31, 1995	14.63%	-10.2%
Dec 31, 1994	16.30%	+9.3%
Dec 31, 1993	14.91%	+36.7%
Dec 31, 1992	10.91%	-53.9%
Dec 31, 1991	23.67%	+49.0%
Dec 31, 1990	15.89%	+29.6%
Dec 31, 1989	12.26%	-21.1%
Dec 31, 1988	15.54%	-42.4%
Dec 31, 1987	26.99%	+47.7%
Dec 31, 1986	18.27%	-13.0%
Dec 31, 1985	21.00%	-5.4%
Dec 31, 1984	22.21%	+25.2%
Dec 31, 1983	17.74%	+23.5%
Dec 31, 1982	14.36%	-

FAQ

What is the current 1-month volatility of SO?: As of today, SO 1-month volatility is 13.50%
What 1-month volatility category does SO fall into?: Based on its current 1-month historical volatility, SO falls into the very low volatility category
What is SO 1-month volatility 1-year high?: SO 1-month volatility reached a 1-year high of 26.63% on February 27, 2026
What is SO 1-month volatility 1-year low?: SO 1-month volatility reached a 1-year low of 8.94% on September 19, 2025

3-Month

16.58%

September 11, 2026

Summary

Current Value: As of today, SO 3-month volatility is 16.58%, up +0.12% on September 11, 2026
Value Category: Based on its current 3-month historical volatility, SO falls into the low volatility category
1-Year High: SO 3-month volatility reached a 1-year high of 20.88% on May 11, 2026
1-Year Low: SO 3-month volatility reached a 1-year low of 11.67% on September 23, 2025

Performance

SO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Sep 11, 26	16.58%	+0.1%	-9.7%	-11.5%	+6.2%	+35.9%	-9.7%	+13.6%
10-Day Volatility	Sep 11, 26	10.25%	-1.7%	-19.5%	-60.2%	-35.7%	+32.1%	-45.3%	-30.0%
1-Month Volatility	Sep 11, 26	13.50%	+1.3%	-14.8%	-33.0%	-15.5%	+18.5%	-7.8%	-3.2%
1-Year Volatility	Sep 11, 26	17.25%	+0.2%	+1.1%	+5.8%	-1.9%	-3.3%	-18.6%	-1.9%
14-Day RSI	Sep 11, 26	31.77	-6.8%	-27.4%	-41.9%	-33.4%	-31.8%	-51.4%	-37.5%
Beta	Sep 11, 26	-0.24	-4.3%	0.0%	-50.0%	-1300.0%	-700.0%	-137.5%	-146.2%
ATR	Sep 11, 26	$1.44	+1.2%	-17.0%	-16.2%	+20.6%	+31.9%	+24.0%	+70.6%
Price	Sep 14, 26	$86.75	-0.5%	-6.5%	-7.7%	-0.5%	-6.0%	+22.4%	+31.5%
200-Day SMA	Sep 11, 26	$92.38	-0.0%	-0.2%	-0.1%	+1.1%	+3.7%	+32.9%	+47.9%
50-Day SMA	Sep 11, 26	$92.74	-0.2%	-1.9%	-1.3%	+3.4%	-0.8%	+33.5%	+43.3%
20-Day SMA	Sep 11, 26	$89.52	-0.3%	-4.9%	-3.5%	+3.7%	-3.5%	+31.7%	+34.9%

3-Month Volatility History

Date	Value	Change
Sep 14, 2026	16.58%	+7.0%
Dec 31, 2025	15.49%	-6.7%
Dec 31, 2024	16.60%	-16.1%
Dec 31, 2023	19.78%	-23.2%
Dec 31, 2022	25.74%	+62.5%
Dec 31, 2021	15.84%	-23.6%
Dec 31, 2020	20.74%	+38.9%
Dec 31, 2019	14.93%	-25.3%
Dec 31, 2018	19.99%	+51.2%
Dec 31, 2017	13.22%	-21.1%
Dec 31, 2016	16.75%	-4.4%
Dec 31, 2015	17.52%	+18.0%
Dec 31, 2014	14.85%	+9.9%
Dec 31, 2013	13.51%	-3.5%
Dec 31, 2012	14.00%	-0.3%
Dec 31, 2011	14.04%	+63.1%
Dec 31, 2010	8.61%	-39.2%
Dec 31, 2009	14.17%	-72.2%
Dec 31, 2008	51.00%	+218.4%
Dec 31, 2007	16.02%	+71.3%
Dec 31, 2006	9.35%	-35.6%
Dec 31, 2005	14.52%	-10.9%
Dec 31, 2004	16.30%	+59.5%

Date	Value	Change
Dec 31, 2003	10.22%	-72.7%
Dec 31, 2002	37.44%	+67.3%
Dec 31, 2001	22.38%	-34.1%
Dec 31, 2000	33.98%	+38.2%
Dec 31, 1999	24.59%	-5.7%
Dec 31, 1998	26.08%	+15.9%
Dec 31, 1997	22.51%	+44.0%
Dec 31, 1996	15.63%	-12.3%
Dec 31, 1995	17.82%	-17.3%
Dec 31, 1994	21.54%	+33.0%
Dec 31, 1993	16.20%	+32.4%
Dec 31, 1992	12.24%	-42.0%
Dec 31, 1991	21.12%	+24.8%
Dec 31, 1990	16.92%	-10.4%
Dec 31, 1989	18.89%	+10.8%
Dec 31, 1988	17.05%	-69.5%
Dec 31, 1987	55.86%	+182.7%
Dec 31, 1986	19.76%	+12.6%
Dec 31, 1985	17.55%	-8.1%
Dec 31, 1984	19.09%	-0.7%
Dec 31, 1983	19.23%	-7.3%
Dec 31, 1982	20.74%	-

FAQ

What is the current 3-month volatility of SO?: As of today, SO 3-month volatility is 16.58%
What 3-month volatility category does SO fall into?: Based on its current 3-month historical volatility, SO falls into the low volatility category
What is SO 3-month volatility 1-year high?: SO 3-month volatility reached a 1-year high of 20.88% on May 11, 2026
What is SO 3-month volatility 1-year low?: SO 3-month volatility reached a 1-year low of 11.67% on September 23, 2025

1-Year

17.25%

September 11, 2026

Summary

Current Value: As of today, SO 1-year volatility is 17.25%, up +0.23% on September 11, 2026
Value Category: Based on its current 1-year historical volatility, SO falls into the low volatility category
1-Year High: SO 1-year volatility reached a 1-year high of 17.95% on October 14, 2025
1-Year Low: SO 1-year volatility reached a 1-year low of 15.66% on May 29, 2026

Performance

SO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Sep 11, 26	17.25%	+0.2%	+1.1%	+5.8%	-1.9%	-3.3%	-18.6%	-1.9%
10-Day Volatility	Sep 11, 26	10.25%	-1.7%	-19.5%	-60.2%	-35.7%	+32.1%	-45.3%	-30.0%
1-Month Volatility	Sep 11, 26	13.50%	+1.3%	-14.8%	-33.0%	-15.5%	+18.5%	-7.8%	-3.2%
3-Month Volatility	Sep 11, 26	16.58%	+0.1%	-9.7%	-11.5%	+6.2%	+35.9%	-9.7%	+13.6%
1-Year Volatility	Sep 11, 26	17.25%	+0.2%	+1.1%	+5.8%	-1.9%	-3.3%	-18.6%	-1.9%
14-Day RSI	Sep 11, 26	31.77	-6.8%	-27.4%	-41.9%	-33.4%	-31.8%	-51.4%	-37.5%
Beta	Sep 11, 26	-0.24	-4.3%	0.0%	-50.0%	-1300.0%	-700.0%	-137.5%	-146.2%
ATR	Sep 11, 26	$1.44	+1.2%	-17.0%	-16.2%	+20.6%	+31.9%	+24.0%	+70.6%
Price	Sep 14, 26	$86.75	-0.5%	-6.5%	-7.7%	-0.5%	-6.0%	+22.4%	+31.5%
200-Day SMA	Sep 11, 26	$92.38	-0.0%	-0.2%	-0.1%	+1.1%	+3.7%	+32.9%	+47.9%
50-Day SMA	Sep 11, 26	$92.74	-0.2%	-1.9%	-1.3%	+3.4%	-0.8%	+33.5%	+43.3%
20-Day SMA	Sep 11, 26	$89.52	-0.3%	-4.9%	-3.5%	+3.7%	-3.5%	+31.7%	+34.9%

1-Year Volatility History

Date	Value	Change
Sep 14, 2026	17.25%	-1.9%
Dec 31, 2025	17.59%	+5.1%
Dec 31, 2024	16.74%	-11.1%
Dec 31, 2023	18.83%	-17.1%
Dec 31, 2022	22.72%	+39.1%
Dec 31, 2021	16.33%	-64.6%
Dec 31, 2020	46.11%	+228.0%
Dec 31, 2019	14.06%	-24.6%
Dec 31, 2018	18.64%	+49.8%
Dec 31, 2017	12.44%	-20.6%
Dec 31, 2016	15.66%	-10.8%
Dec 31, 2015	17.56%	+30.5%
Dec 31, 2014	13.46%	+2.8%
Dec 31, 2013	13.09%	+13.8%
Dec 31, 2012	11.50%	-11.6%
Dec 31, 2011	13.01%	-5.0%
Dec 31, 2010	13.70%	-32.2%
Dec 31, 2009	20.20%	-34.4%
Dec 31, 2008	30.77%	+75.6%
Dec 31, 2007	17.52%	+38.6%
Dec 31, 2006	12.64%	-10.7%
Dec 31, 2005	14.16%	+14.2%
Dec 31, 2004	12.40%	-32.8%

Date	Value	Change
Dec 31, 2003	18.45%	-37.8%
Dec 31, 2002	29.65%	+21.5%
Dec 31, 2001	24.40%	-25.3%
Dec 31, 2000	32.65%	+35.6%
Dec 31, 1999	24.08%	+13.6%
Dec 31, 1998	21.20%	+10.1%
Dec 31, 1997	19.26%	+1.9%
Dec 31, 1996	18.91%	+8.7%
Dec 31, 1995	17.39%	-11.8%
Dec 31, 1994	19.71%	+42.5%
Dec 31, 1993	13.83%	-0.9%
Dec 31, 1992	13.95%	-23.8%
Dec 31, 1991	18.31%	+3.3%
Dec 31, 1990	17.72%	+1.5%
Dec 31, 1989	17.45%	-8.8%
Dec 31, 1988	19.13%	-46.0%
Dec 31, 1987	35.45%	+70.9%
Dec 31, 1986	20.74%	+22.0%
Dec 31, 1985	17.00%	-17.0%
Dec 31, 1984	20.49%	+30.3%
Dec 31, 1983	15.73%	-18.9%
Dec 31, 1982	19.40%	-

FAQ

What is the current 1-year volatility of SO?: As of today, SO 1-year volatility is 17.25%
What 1-year volatility category does SO fall into?: Based on its current 1-year historical volatility, SO falls into the low volatility category
What is SO 1-year volatility 1-year high?: SO 1-year volatility reached a 1-year high of 17.95% on October 14, 2025
What is SO 1-year volatility 1-year low?: SO 1-year volatility reached a 1-year low of 15.66% on May 29, 2026

Data Sources & References

SO Official Website www.southerncompany.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/92122/000009212226000006/0000092122-26-000006-index.htm
SO Profile on Yahoo Finance finance.yahoo.com/quote/SO
SO Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/so