What is the current 10-day volatility of CIG.C?

As of today, CIG.C 10-day volatility is 20.64%

What 10-day volatility category does CIG.C fall into?

Based on its current 10-day historical volatility, CIG.C falls into the low volatility category

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

CIG.C 10-day volatility reached a 1-year high of 95.18% on June 5, 2025

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

CIG.C 10-day volatility reached a 1-year low of 13.98% on October 16, 2025

What is the current 1-month volatility of CIG.C?

As of today, CIG.C 1-month volatility is 48.20%

What 1-month volatility category does CIG.C fall into?

Based on its current 1-month historical volatility, CIG.C falls into the high volatility category

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

CIG.C 1-month volatility reached a 1-year high of 77.38% on June 24, 2025

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

CIG.C 1-month volatility reached a 1-year low of 22.27% on November 1, 2025

What is the current 3-month volatility of CIG.C?

As of today, CIG.C 3-month volatility is 36.89%

What 3-month volatility category does CIG.C fall into?

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

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

CIG.C 3-month volatility reached a 1-year high of 56.97% on June 14, 2025

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

CIG.C 3-month volatility reached a 1-year low of 28.36% on October 18, 2025

What is the current 1-year volatility of CIG.C?

As of today, CIG.C 1-year volatility is 40.71%

What 1-year volatility category does CIG.C fall into?

Based on its current 1-year historical volatility, CIG.C falls into the high volatility category

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

CIG.C 1-year volatility reached a 1-year high of 44.22% on June 26, 2025

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

CIG.C 1-year volatility reached a 1-year low of 37.25% on January 9, 2025

CIG.C Stock Volatility History & Chart Since 2007

10-Day

20.64%

January 9, 2026

Summary

Current Value: As of today, CIG.C 10-day volatility is 20.64%, down -27.43% on January 9, 2026
Value Category: Based on its current 10-day historical volatility, CIG.C falls into the low volatility category
1-Year High: CIG.C 10-day volatility reached a 1-year high of 95.18% on June 5, 2025
1-Year Low: CIG.C 10-day volatility reached a 1-year low of 13.98% on October 16, 2025

10-Day Volatility Chart

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Jan 9, 26	20.64%	-27.4%	-30.3%	-26.1%	-66.9%	-7.2%	-53.0%	-47.8%
1-Month Volatility	Jan 9, 26	48.20%	+3.3%	+48.8%	+76.6%	-1.1%	+57.0%	-13.4%	+18.6%
3-Month Volatility	Jan 9, 26	36.89%	+0.3%	+23.6%	+25.6%	+0.7%	+19.7%	-42.3%	-18.6%
1-Year Volatility	Jan 9, 26	40.71%	-0.2%	+3.0%	+2.9%	-0.3%	+9.3%	-27.8%	-56.4%
14-Day RSI	Jan 9, 26	52.32	+3.4%	+15.0%	+26.7%	+3.4%	+10.2%	+4.9%	-16.9%
Beta	Jan 9, 26	0.28	0.0%	-3.5%	+7.7%	+3.7%	-36.4%	-48.1%	-77.8%
ATR	Jan 9, 26	$0.07	-5.3%	+4.0%	-21.4%	-19.5%	+5.2%	-43.7%	-26.4%
Price	Jan 9, 26	$2.63	+0.8%	+1.5%	+1.5%	+1.4%	+12.0%	+8.2%	+51.5%
200-Day SMA	Jan 9, 26	$2.64	+0.0%	-0.1%	+1.1%	+0.1%	+10.3%	+4.5%	+123.3%
50-Day SMA	Jan 9, 26	$2.62	+0.0%	-0.3%	-2.4%	+0.3%	+7.7%	+4.6%	+78.5%

10-Day Volatility History

Date	Value	Change
Jan 9, 2026	20.64%	-66.9%
Dec 31, 2025	62.29%	+94.6%
Dec 31, 2024	32.01%	-10.3%
Dec 31, 2023	35.67%	-42.5%
Dec 31, 2022	61.99%	+43.6%
Dec 31, 2021	43.16%	+40.1%
Dec 31, 2020	30.81%	-41.3%
Dec 31, 2019	52.51%	-58.9%
Dec 31, 2018	127.65%	+41.8%
Dec 31, 2017	90.04%	+22.7%

Date	Value	Change
Dec 31, 2016	73.41%	-52.4%
Dec 31, 2015	154.31%	+327.8%
Dec 31, 2014	36.07%	-40.8%
Dec 31, 2013	60.92%	-51.6%
Dec 31, 2012	125.90%	+113.6%
Dec 31, 2011	58.95%	+35.1%
Dec 31, 2010	43.63%	+107.8%
Dec 31, 2009	21.00%	-5.1%
Dec 31, 2008	22.14%	-56.5%
Dec 31, 2007	50.91%	-

FAQ

What is the current 10-day volatility of CIG.C?
As of today, CIG.C 10-day volatility is 20.64%
What 10-day volatility category does CIG.C fall into?
Based on its current 10-day historical volatility, CIG.C falls into the low volatility category
What is CIG.C 10-day volatility 1-year high?
CIG.C 10-day volatility reached a 1-year high of 95.18% on June 5, 2025
What is CIG.C 10-day volatility 1-year low?
CIG.C 10-day volatility reached a 1-year low of 13.98% on October 16, 2025

1-Month

48.20%

January 9, 2026

Summary

Current Value: As of today, CIG.C 1-month volatility is 48.20%, up +3.34% on January 9, 2026
Value Category: Based on its current 1-month historical volatility, CIG.C falls into the high volatility category
1-Year High: CIG.C 1-month volatility reached a 1-year high of 77.38% on June 24, 2025
1-Year Low: CIG.C 1-month volatility reached a 1-year low of 22.27% on November 1, 2025

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Jan 9, 26	48.20%	+3.3%	+48.8%	+76.6%	-1.1%	+57.0%	-13.4%	+18.6%
10-Day Volatility	Jan 9, 26	20.64%	-27.4%	-30.3%	-26.1%	-66.9%	-7.2%	-53.0%	-47.8%
3-Month Volatility	Jan 9, 26	36.89%	+0.3%	+23.6%	+25.6%	+0.7%	+19.7%	-42.3%	-18.6%
1-Year Volatility	Jan 9, 26	40.71%	-0.2%	+3.0%	+2.9%	-0.3%	+9.3%	-27.8%	-56.4%
14-Day RSI	Jan 9, 26	52.32	+3.4%	+15.0%	+26.7%	+3.4%	+10.2%	+4.9%	-16.9%
Beta	Jan 9, 26	0.28	0.0%	-3.5%	+7.7%	+3.7%	-36.4%	-48.1%	-77.8%
ATR	Jan 9, 26	$0.07	-5.3%	+4.0%	-21.4%	-19.5%	+5.2%	-43.7%	-26.4%
Price	Jan 9, 26	$2.63	+0.8%	+1.5%	+1.5%	+1.4%	+12.0%	+8.2%	+51.5%
200-Day SMA	Jan 9, 26	$2.64	+0.0%	-0.1%	+1.1%	+0.1%	+10.3%	+4.5%	+123.3%
50-Day SMA	Jan 9, 26	$2.62	+0.0%	-0.3%	-2.4%	+0.3%	+7.7%	+4.6%	+78.5%

1-Month Volatility History

Date	Value	Change
Jan 9, 2026	46.66%	-1.9%
Dec 31, 2025	47.58%	+46.9%
Dec 31, 2024	32.38%	-27.6%
Dec 31, 2023	44.75%	-23.7%
Dec 31, 2022	58.62%	+42.1%
Dec 31, 2021	41.24%	+7.3%
Dec 31, 2020	38.43%	-3.3%
Dec 31, 2019	39.75%	-59.0%
Dec 31, 2018	96.92%	+20.9%
Dec 31, 2017	80.14%	-42.2%

Date	Value	Change
Dec 31, 2016	138.64%	-10.5%
Dec 31, 2015	154.93%	+255.1%
Dec 31, 2014	43.63%	-24.8%
Dec 31, 2013	58.00%	-42.3%
Dec 31, 2012	100.44%	+115.5%
Dec 31, 2011	46.60%	+22.1%
Dec 31, 2010	38.16%	+30.1%
Dec 31, 2009	29.34%	-12.3%
Dec 31, 2008	33.45%	-41.8%
Dec 31, 2007	57.47%	-

FAQ

What is the current 1-month volatility of CIG.C?
As of today, CIG.C 1-month volatility is 48.20%
What 1-month volatility category does CIG.C fall into?
Based on its current 1-month historical volatility, CIG.C falls into the high volatility category
What is CIG.C 1-month volatility 1-year high?
CIG.C 1-month volatility reached a 1-year high of 77.38% on June 24, 2025
What is CIG.C 1-month volatility 1-year low?
CIG.C 1-month volatility reached a 1-year low of 22.27% on November 1, 2025

3-Month

36.89%

January 9, 2026

Summary

Current Value: As of today, CIG.C 3-month volatility is 36.89%, up +0.35% on January 9, 2026
Value Category: Based on its current 3-month historical volatility, CIG.C falls into the moderate volatility category
1-Year High: CIG.C 3-month volatility reached a 1-year high of 56.97% on June 14, 2025
1-Year Low: CIG.C 3-month volatility reached a 1-year low of 28.36% on October 18, 2025

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Jan 9, 26	36.89%	+0.3%	+23.6%	+25.6%	+0.7%	+19.7%	-42.3%	-18.6%
10-Day Volatility	Jan 9, 26	20.64%	-27.4%	-30.3%	-26.1%	-66.9%	-7.2%	-53.0%	-47.8%
1-Month Volatility	Jan 9, 26	48.20%	+3.3%	+48.8%	+76.6%	-1.1%	+57.0%	-13.4%	+18.6%
1-Year Volatility	Jan 9, 26	40.71%	-0.2%	+3.0%	+2.9%	-0.3%	+9.3%	-27.8%	-56.4%
14-Day RSI	Jan 9, 26	52.32	+3.4%	+15.0%	+26.7%	+3.4%	+10.2%	+4.9%	-16.9%
Beta	Jan 9, 26	0.28	0.0%	-3.5%	+7.7%	+3.7%	-36.4%	-48.1%	-77.8%
ATR	Jan 9, 26	$0.07	-5.3%	+4.0%	-21.4%	-19.5%	+5.2%	-43.7%	-26.4%
Price	Jan 9, 26	$2.63	+0.8%	+1.5%	+1.5%	+1.4%	+12.0%	+8.2%	+51.5%
200-Day SMA	Jan 9, 26	$2.64	+0.0%	-0.1%	+1.1%	+0.1%	+10.3%	+4.5%	+123.3%
50-Day SMA	Jan 9, 26	$2.62	+0.0%	-0.3%	-2.4%	+0.3%	+7.7%	+4.6%	+78.5%

3-Month Volatility History

Date	Value	Change
Jan 9, 2026	36.67%	-1.0%
Dec 31, 2025	37.05%	+23.6%
Dec 31, 2024	29.97%	-37.9%
Dec 31, 2023	48.24%	-33.9%
Dec 31, 2022	72.94%	+32.9%
Dec 31, 2021	54.87%	+26.7%
Dec 31, 2020	43.30%	+48.4%
Dec 31, 2019	29.17%	-71.0%
Dec 31, 2018	100.72%	+42.8%
Dec 31, 2017	70.52%	-31.5%

Date	Value	Change
Dec 31, 2016	103.02%	+3.1%
Dec 31, 2015	99.89%	+76.8%
Dec 31, 2014	56.49%	+39.8%
Dec 31, 2013	40.42%	-43.5%
Dec 31, 2012	71.52%	+27.1%
Dec 31, 2011	56.26%	+56.3%
Dec 31, 2010	36.00%	+13.9%
Dec 31, 2009	31.61%	-59.2%
Dec 31, 2008	77.56%	+82.5%
Dec 31, 2007	42.50%	-

FAQ

What is the current 3-month volatility of CIG.C?
As of today, CIG.C 3-month volatility is 36.89%
What 3-month volatility category does CIG.C fall into?
Based on its current 3-month historical volatility, CIG.C falls into the moderate volatility category
What is CIG.C 3-month volatility 1-year high?
CIG.C 3-month volatility reached a 1-year high of 56.97% on June 14, 2025
What is CIG.C 3-month volatility 1-year low?
CIG.C 3-month volatility reached a 1-year low of 28.36% on October 18, 2025

1-Year

40.71%

January 9, 2026

Summary

Current Value: As of today, CIG.C 1-year volatility is 40.71%, down -0.22% on January 9, 2026
Value Category: Based on its current 1-year historical volatility, CIG.C falls into the high volatility category
1-Year High: CIG.C 1-year volatility reached a 1-year high of 44.22% on June 26, 2025
1-Year Low: CIG.C 1-year volatility reached a 1-year low of 37.25% on January 9, 2025

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Jan 9, 26	40.71%	-0.2%	+3.0%	+2.9%	-0.3%	+9.3%	-27.8%	-56.4%
10-Day Volatility	Jan 9, 26	20.64%	-27.4%	-30.3%	-26.1%	-66.9%	-7.2%	-53.0%	-47.8%
1-Month Volatility	Jan 9, 26	48.20%	+3.3%	+48.8%	+76.6%	-1.1%	+57.0%	-13.4%	+18.6%
3-Month Volatility	Jan 9, 26	36.89%	+0.3%	+23.6%	+25.6%	+0.7%	+19.7%	-42.3%	-18.6%
1-Year Volatility	Jan 9, 26	40.71%	-0.2%	+3.0%	+2.9%	-0.3%	+9.3%	-27.8%	-56.4%
14-Day RSI	Jan 9, 26	52.32	+3.4%	+15.0%	+26.7%	+3.4%	+10.2%	+4.9%	-16.9%
Beta	Jan 9, 26	0.28	0.0%	-3.5%	+7.7%	+3.7%	-36.4%	-48.1%	-77.8%
ATR	Jan 9, 26	$0.07	-5.3%	+4.0%	-21.4%	-19.5%	+5.2%	-43.7%	-26.4%
Price	Jan 9, 26	$2.63	+0.8%	+1.5%	+1.5%	+1.4%	+12.0%	+8.2%	+51.5%
200-Day SMA	Jan 9, 26	$2.64	+0.0%	-0.1%	+1.1%	+0.1%	+10.3%	+4.5%	+123.3%
50-Day SMA	Jan 9, 26	$2.62	+0.0%	-0.3%	-2.4%	+0.3%	+7.7%	+4.6%	+78.5%

1-Year Volatility History

Date	Value	Change
Jan 9, 2026	40.72%	-0.3%
Dec 31, 2025	40.85%	+9.7%
Dec 31, 2024	37.24%	-25.0%
Dec 31, 2023	49.66%	-14.0%
Dec 31, 2022	57.76%	+10.0%
Dec 31, 2021	52.49%	-43.6%
Dec 31, 2020	93.08%	+130.2%
Dec 31, 2019	40.43%	-45.9%
Dec 31, 2018	74.76%	+4.6%
Dec 31, 2017	71.49%	-19.3%

Date	Value	Change
Dec 31, 2016	88.59%	+25.1%
Dec 31, 2015	70.83%	+53.5%
Dec 31, 2014	46.14%	+9.3%
Dec 31, 2013	42.23%	-11.2%
Dec 31, 2012	47.53%	+16.6%
Dec 31, 2011	40.76%	+15.8%
Dec 31, 2010	35.21%	+7.8%
Dec 31, 2009	32.65%	-46.0%
Dec 31, 2008	60.43%	+36.7%
Dec 31, 2007	44.21%	-

FAQ

What is the current 1-year volatility of CIG.C?
As of today, CIG.C 1-year volatility is 40.71%
What 1-year volatility category does CIG.C fall into?
Based on its current 1-year historical volatility, CIG.C falls into the high volatility category
What is CIG.C 1-year volatility 1-year high?
CIG.C 1-year volatility reached a 1-year high of 44.22% on June 26, 2025
What is CIG.C 1-year volatility 1-year low?
CIG.C 1-year volatility reached a 1-year low of 37.25% on January 9, 2025

Data Sources & References

CIG.C 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.C Profile on Yahoo Finance finance.yahoo.com/quote/CIG-C
CIG.C Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/cig.c