What is the current 10-day volatility of CIG?

As of today, CIG 10-day volatility is 34.06%

What 10-day volatility category does CIG fall into?

Based on its current 10-day historical volatility, CIG falls into the moderate volatility category

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

CIG 10-day volatility reached a 1-year high of 44.88% on May 15, 2025

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

CIG 10-day volatility reached a 1-year low of 14.24% on June 18, 2025

What is the current 1-month volatility of CIG?

As of today, CIG 1-month volatility is 30.48%

What 1-month volatility category does CIG fall into?

Based on its current 1-month historical volatility, CIG falls into the moderate volatility category

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

CIG 1-month volatility reached a 1-year high of 48.36% on January 10, 2025

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

CIG 1-month volatility reached a 1-year low of 18.84% on September 22, 2025

What is the current 3-month volatility of CIG?

As of today, CIG 3-month volatility is 30.47%

What 3-month volatility category does CIG fall into?

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

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

CIG 3-month volatility reached a 1-year high of 39.78% on February 3, 2025

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

CIG 3-month volatility reached a 1-year low of 23.84% on August 13, 2025

What is the current 1-year volatility of CIG?

As of today, CIG 1-year volatility is 29.91%

What 1-year volatility category does CIG fall into?

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

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

CIG 1-year volatility reached a 1-year high of 34.84% on April 26, 2025

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

CIG 1-year volatility reached a 1-year low of 29.91% on January 10, 2026

CIG Stock Volatility History & Chart Since 1996

10-Day

34.06%

January 9, 2026

Summary

Current Value: As of today, CIG 10-day volatility is 34.06%, up +2.59% on January 9, 2026
Value Category: Based on its current 10-day historical volatility, CIG falls into the moderate volatility category
1-Year High: CIG 10-day volatility reached a 1-year high of 44.88% on May 15, 2025
1-Year Low: CIG 10-day volatility reached a 1-year low of 14.24% on June 18, 2025

10-Day Volatility Chart

Performance

CIG Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Jan 9, 26	34.06%	+2.6%	+4.3%	+20.9%	+11.4%	+2.9%	-36.0%	-41.1%
1-Month Volatility	Jan 9, 26	30.48%	-1.1%	-13.9%	+10.0%	-8.1%	-34.6%	-43.9%	-35.4%
3-Month Volatility	Jan 9, 26	30.47%	-1.0%	+2.3%	+13.7%	-0.3%	-17.2%	-47.7%	-29.1%
1-Year Volatility	Jan 9, 26	29.91%	-0.8%	-5.4%	-5.7%	-1.9%	-9.6%	-44.0%	-59.4%
14-Day RSI	Jan 9, 26	49.54	+7.9%	+10.9%	+21.6%	+7.7%	+10.7%	-3.2%	-17.0%
Beta	Jan 9, 26	0.42	0.0%	-4.5%	+13.5%	+5.0%	+2.4%	-25.0%	-70.8%
ATR	Jan 9, 26	$0.05	-1.2%	-16.8%	-1.4%	-5.9%	-21.9%	-30.4%	-50.6%
Price	Jan 9, 26	$2.03	+1.5%	-0.5%	+3.6%	+1.5%	+13.4%	+28.1%	-8.4%
200-Day SMA	Jan 9, 26	$1.95	+0.1%	+0.6%	+3.3%	+0.2%	+0.2%	+8.3%	+20.3%
50-Day SMA	Jan 9, 26	$2.07	0.0%	+0.5%	+3.9%	+0.2%	+8.4%	+30.0%	+9.2%

10-Day Volatility History

Date	Value	Change
Jan 9, 2026	34.06%	+11.4%
Dec 31, 2025	30.57%	-41.2%
Dec 31, 2024	51.99%	+95.9%
Dec 31, 2023	26.54%	-54.5%
Dec 31, 2022	58.32%	+48.9%
Dec 31, 2021	39.18%	+13.6%
Dec 31, 2020	34.50%	+94.0%
Dec 31, 2019	17.78%	-66.4%
Dec 31, 2018	52.86%	+96.5%
Dec 31, 2017	26.90%	-26.7%
Dec 31, 2016	36.70%	-45.1%
Dec 31, 2015	66.79%	+119.2%
Dec 31, 2014	30.47%	-16.5%
Dec 31, 2013	36.50%	-47.3%
Dec 31, 2012	69.24%	+91.1%
Dec 31, 2011	36.24%	+51.8%

Date	Value	Change
Dec 31, 2010	23.88%	-8.2%
Dec 31, 2009	26.01%	-54.8%
Dec 31, 2008	57.53%	+22.7%
Dec 31, 2007	46.88%	+150.3%
Dec 31, 2006	18.73%	-35.9%
Dec 31, 2005	29.20%	+100.1%
Dec 31, 2004	14.59%	-41.7%
Dec 31, 2003	25.02%	-60.8%
Dec 31, 2002	63.75%	+50.1%
Dec 31, 2001	42.46%	-33.1%
Dec 31, 2000	63.47%	+10.8%
Dec 31, 1999	57.26%	+66.8%
Dec 31, 1998	34.32%	-55.1%
Dec 31, 1997	76.52%	+243.0%
Dec 31, 1996	22.31%	-

FAQ

What is the current 10-day volatility of CIG?
As of today, CIG 10-day volatility is 34.06%
What 10-day volatility category does CIG fall into?
Based on its current 10-day historical volatility, CIG falls into the moderate volatility category
What is CIG 10-day volatility 1-year high?
CIG 10-day volatility reached a 1-year high of 44.88% on May 15, 2025
What is CIG 10-day volatility 1-year low?
CIG 10-day volatility reached a 1-year low of 14.24% on June 18, 2025

1-Month

30.48%

January 9, 2026

Summary

Current Value: As of today, CIG 1-month volatility is 30.48%, down -1.07% on January 9, 2026
Value Category: Based on its current 1-month historical volatility, CIG falls into the moderate volatility category
1-Year High: CIG 1-month volatility reached a 1-year high of 48.36% on January 10, 2025
1-Year Low: CIG 1-month volatility reached a 1-year low of 18.84% on September 22, 2025

Performance

CIG Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Jan 9, 26	30.48%	-1.1%	-13.9%	+10.0%	-8.1%	-34.6%	-43.9%	-35.4%
10-Day Volatility	Jan 9, 26	34.06%	+2.6%	+4.3%	+20.9%	+11.4%	+2.9%	-36.0%	-41.1%
3-Month Volatility	Jan 9, 26	30.47%	-1.0%	+2.3%	+13.7%	-0.3%	-17.2%	-47.7%	-29.1%
1-Year Volatility	Jan 9, 26	29.91%	-0.8%	-5.4%	-5.7%	-1.9%	-9.6%	-44.0%	-59.4%
14-Day RSI	Jan 9, 26	49.54	+7.9%	+10.9%	+21.6%	+7.7%	+10.7%	-3.2%	-17.0%
Beta	Jan 9, 26	0.42	0.0%	-4.5%	+13.5%	+5.0%	+2.4%	-25.0%	-70.8%
ATR	Jan 9, 26	$0.05	-1.2%	-16.8%	-1.4%	-5.9%	-21.9%	-30.4%	-50.6%
Price	Jan 9, 26	$2.03	+1.5%	-0.5%	+3.6%	+1.5%	+13.4%	+28.1%	-8.4%
200-Day SMA	Jan 9, 26	$1.95	+0.1%	+0.6%	+3.3%	+0.2%	+0.2%	+8.3%	+20.3%
50-Day SMA	Jan 9, 26	$2.07	0.0%	+0.5%	+3.9%	+0.2%	+8.4%	+30.0%	+9.2%

1-Month Volatility History

Date	Value	Change
Jan 9, 2026	31.23%	-4.3%
Dec 31, 2025	32.64%	-22.3%
Dec 31, 2024	41.99%	+60.6%
Dec 31, 2023	26.14%	-49.4%
Dec 31, 2022	51.65%	+34.9%
Dec 31, 2021	38.28%	-0.2%
Dec 31, 2020	38.34%	+76.8%
Dec 31, 2019	21.69%	-49.5%
Dec 31, 2018	42.98%	+42.5%
Dec 31, 2017	30.17%	-32.1%
Dec 31, 2016	44.41%	-32.5%
Dec 31, 2015	65.84%	+64.5%
Dec 31, 2014	40.02%	+13.3%
Dec 31, 2013	35.32%	-41.3%
Dec 31, 2012	60.13%	+63.4%
Dec 31, 2011	36.81%	+29.7%

Date	Value	Change
Dec 31, 2010	28.38%	-7.8%
Dec 31, 2009	30.78%	-58.4%
Dec 31, 2008	74.05%	+46.7%
Dec 31, 2007	50.49%	+113.3%
Dec 31, 2006	23.67%	-14.8%
Dec 31, 2005	27.79%	-29.4%
Dec 31, 2004	39.34%	0.0%
Dec 31, 2003	39.34%	-37.6%
Dec 31, 2002	63.09%	+11.0%
Dec 31, 2001	56.86%	-4.9%
Dec 31, 2000	59.77%	+15.9%
Dec 31, 1999	51.56%	-22.1%
Dec 31, 1998	66.20%	+6.0%
Dec 31, 1997	62.45%	+88.6%
Dec 31, 1996	33.12%	-

FAQ

What is the current 1-month volatility of CIG?
As of today, CIG 1-month volatility is 30.48%
What 1-month volatility category does CIG fall into?
Based on its current 1-month historical volatility, CIG falls into the moderate volatility category
What is CIG 1-month volatility 1-year high?
CIG 1-month volatility reached a 1-year high of 48.36% on January 10, 2025
What is CIG 1-month volatility 1-year low?
CIG 1-month volatility reached a 1-year low of 18.84% on September 22, 2025

3-Month

30.47%

January 9, 2026

Summary

Current Value: As of today, CIG 3-month volatility is 30.47%, down -1.01% on January 9, 2026
Value Category: Based on its current 3-month historical volatility, CIG falls into the moderate volatility category
1-Year High: CIG 3-month volatility reached a 1-year high of 39.78% on February 3, 2025
1-Year Low: CIG 3-month volatility reached a 1-year low of 23.84% on August 13, 2025

Performance

CIG Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Jan 9, 26	30.47%	-1.0%	+2.3%	+13.7%	-0.3%	-17.2%	-47.7%	-29.1%
10-Day Volatility	Jan 9, 26	34.06%	+2.6%	+4.3%	+20.9%	+11.4%	+2.9%	-36.0%	-41.1%
1-Month Volatility	Jan 9, 26	30.48%	-1.1%	-13.9%	+10.0%	-8.1%	-34.6%	-43.9%	-35.4%
1-Year Volatility	Jan 9, 26	29.91%	-0.8%	-5.4%	-5.7%	-1.9%	-9.6%	-44.0%	-59.4%
14-Day RSI	Jan 9, 26	49.54	+7.9%	+10.9%	+21.6%	+7.7%	+10.7%	-3.2%	-17.0%
Beta	Jan 9, 26	0.42	0.0%	-4.5%	+13.5%	+5.0%	+2.4%	-25.0%	-70.8%
ATR	Jan 9, 26	$0.05	-1.2%	-16.8%	-1.4%	-5.9%	-21.9%	-30.4%	-50.6%
Price	Jan 9, 26	$2.03	+1.5%	-0.5%	+3.6%	+1.5%	+13.4%	+28.1%	-8.4%
200-Day SMA	Jan 9, 26	$1.95	+0.1%	+0.6%	+3.3%	+0.2%	+0.2%	+8.3%	+20.3%
50-Day SMA	Jan 9, 26	$2.07	0.0%	+0.5%	+3.9%	+0.2%	+8.4%	+30.0%	+9.2%

3-Month Volatility History

Date	Value	Change
Jan 9, 2026	30.89%	-0.4%
Dec 31, 2025	31.02%	-9.7%
Dec 31, 2024	34.35%	-16.0%
Dec 31, 2023	40.90%	-38.2%
Dec 31, 2022	66.20%	+51.2%
Dec 31, 2021	43.79%	+11.4%
Dec 31, 2020	39.32%	+64.9%
Dec 31, 2019	23.85%	-66.7%
Dec 31, 2018	71.52%	+58.9%
Dec 31, 2017	45.00%	-10.7%
Dec 31, 2016	50.40%	-15.7%
Dec 31, 2015	59.82%	-3.3%
Dec 31, 2014	61.89%	+120.7%
Dec 31, 2013	28.04%	-39.3%
Dec 31, 2012	46.21%	+22.0%
Dec 31, 2011	37.87%	+34.0%

Date	Value	Change
Dec 31, 2010	28.27%	-14.7%
Dec 31, 2009	33.14%	-71.7%
Dec 31, 2008	117.14%	+139.6%
Dec 31, 2007	48.89%	+83.2%
Dec 31, 2006	26.68%	-35.4%
Dec 31, 2005	41.28%	+6.9%
Dec 31, 2004	38.63%	-13.0%
Dec 31, 2003	44.40%	-35.7%
Dec 31, 2002	69.02%	+37.8%
Dec 31, 2001	50.09%	-25.9%
Dec 31, 2000	67.60%	+27.8%
Dec 31, 1999	52.89%	-26.0%
Dec 31, 1998	71.46%	-10.3%
Dec 31, 1997	79.70%	+136.8%
Dec 31, 1996	33.65%	-

FAQ

What is the current 3-month volatility of CIG?
As of today, CIG 3-month volatility is 30.47%
What 3-month volatility category does CIG fall into?
Based on its current 3-month historical volatility, CIG falls into the moderate volatility category
What is CIG 3-month volatility 1-year high?
CIG 3-month volatility reached a 1-year high of 39.78% on February 3, 2025
What is CIG 3-month volatility 1-year low?
CIG 3-month volatility reached a 1-year low of 23.84% on August 13, 2025

1-Year

29.91%

January 9, 2026

Summary

Current Value: As of today, CIG 1-year volatility is 29.91%, down -0.76% on January 9, 2026
Value Category: Based on its current 1-year historical volatility, CIG falls into the moderate volatility category
1-Year High: CIG 1-year volatility reached a 1-year high of 34.84% on April 26, 2025
1-Year Low: CIG 1-year volatility reached a 1-year low of 29.91% on January 10, 2026

Performance

CIG Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Jan 9, 26	29.91%	-0.8%	-5.4%	-5.7%	-1.9%	-9.6%	-44.0%	-59.4%
10-Day Volatility	Jan 9, 26	34.06%	+2.6%	+4.3%	+20.9%	+11.4%	+2.9%	-36.0%	-41.1%
1-Month Volatility	Jan 9, 26	30.48%	-1.1%	-13.9%	+10.0%	-8.1%	-34.6%	-43.9%	-35.4%
3-Month Volatility	Jan 9, 26	30.47%	-1.0%	+2.3%	+13.7%	-0.3%	-17.2%	-47.7%	-29.1%
1-Year Volatility	Jan 9, 26	29.91%	-0.8%	-5.4%	-5.7%	-1.9%	-9.6%	-44.0%	-59.4%
14-Day RSI	Jan 9, 26	49.54	+7.9%	+10.9%	+21.6%	+7.7%	+10.7%	-3.2%	-17.0%
Beta	Jan 9, 26	0.42	0.0%	-4.5%	+13.5%	+5.0%	+2.4%	-25.0%	-70.8%
ATR	Jan 9, 26	$0.05	-1.2%	-16.8%	-1.4%	-5.9%	-21.9%	-30.4%	-50.6%
Price	Jan 9, 26	$2.03	+1.5%	-0.5%	+3.6%	+1.5%	+13.4%	+28.1%	-8.4%
200-Day SMA	Jan 9, 26	$1.95	+0.1%	+0.6%	+3.3%	+0.2%	+0.2%	+8.3%	+20.3%
50-Day SMA	Jan 9, 26	$2.07	0.0%	+0.5%	+3.9%	+0.2%	+8.4%	+30.0%	+9.2%

1-Year Volatility History

Date	Value	Change
Jan 9, 2026	30.12%	-1.2%
Dec 31, 2025	30.48%	-6.7%
Dec 31, 2024	32.68%	-6.4%
Dec 31, 2023	34.91%	-34.6%
Dec 31, 2022	53.37%	+25.7%
Dec 31, 2021	42.45%	-41.9%
Dec 31, 2020	73.07%	+116.1%
Dec 31, 2019	33.81%	-37.6%
Dec 31, 2018	54.22%	+1.5%
Dec 31, 2017	53.44%	-27.0%
Dec 31, 2016	73.20%	+37.7%
Dec 31, 2015	53.14%	+16.9%
Dec 31, 2014	45.47%	+35.0%
Dec 31, 2013	33.69%	-15.1%
Dec 31, 2012	39.69%	+23.8%
Dec 31, 2011	32.07%	-1.5%

Date	Value	Change
Dec 31, 2010	32.56%	-17.9%
Dec 31, 2009	39.64%	-44.6%
Dec 31, 2008	71.61%	+68.1%
Dec 31, 2007	42.59%	-0.8%
Dec 31, 2006	42.92%	-4.0%
Dec 31, 2005	44.73%	-11.9%
Dec 31, 2004	50.80%	+9.2%
Dec 31, 2003	46.51%	-30.9%
Dec 31, 2002	67.28%	+12.4%
Dec 31, 2001	59.84%	+1.3%
Dec 31, 2000	59.07%	-18.9%
Dec 31, 1999	72.80%	-21.7%
Dec 31, 1998	93.01%	+67.9%
Dec 31, 1997	55.38%	+64.6%
Dec 31, 1996	33.65%	-

FAQ

What is the current 1-year volatility of CIG?
As of today, CIG 1-year volatility is 29.91%
What 1-year volatility category does CIG fall into?
Based on its current 1-year historical volatility, CIG falls into the moderate volatility category
What is CIG 1-year volatility 1-year high?
CIG 1-year volatility reached a 1-year high of 34.84% on April 26, 2025
What is CIG 1-year volatility 1-year low?
CIG 1-year volatility reached a 1-year low of 29.91% on January 10, 2026

Data Sources & References

CIG Official Website www.cemig.com.br
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1157557/000155485525000408/0001554855-25-000408-index.htm
CIG Profile on Yahoo Finance finance.yahoo.com/quote/CIG
CIG Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/cig