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

As of today, CIG.C 10-day volatility is 35.59%

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

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

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

CIG.C 10-day volatility reached a 1-year high of 90.30% on April 22, 2026

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

CIG.C 10-day volatility reached a 1-year low of 11.86% on January 16, 2026

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

As of today, CIG.C 1-month volatility is 57.47%

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 72.85% on April 22, 2026

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

CIG.C 1-month volatility reached a 1-year low of 21.92% on January 16, 2026

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

As of today, CIG.C 3-month volatility is 42.25%

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

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

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

CIG.C 3-month volatility reached a 1-year high of 58.28% on June 18, 2026

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

CIG.C 3-month volatility reached a 1-year low of 28.43% on October 28, 2025

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

As of today, CIG.C 1-year volatility is 43.09%

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 43.66% on May 1, 2026

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

CIG.C 1-year volatility reached a 1-year low of 38.95% on March 25, 2026

CIG.C Stock Volatility History & Chart Since 2007

10-Day

35.59%

October 21, 2026

Summary

Current Value: As of today, CIG.C 10-day volatility is 35.59%, down -4.71% on October 21, 2026
Value Category: Based on its current 10-day historical volatility, CIG.C falls into the moderate volatility category
1-Year High: CIG.C 10-day volatility reached a 1-year high of 90.30% on April 22, 2026
1-Year Low: CIG.C 10-day volatility reached a 1-year low of 11.86% on January 16, 2026

10-Day Volatility Chart

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Oct 21, 26	35.59%	-4.7%	+22.9%	+6.1%	-42.9%	+33.8%	-20.9%	-60.5%
1-Month Volatility	Oct 21, 26	57.47%	-2.5%	+76.5%	+92.1%	+18.0%	+96.1%	+27.0%	-9.1%
3-Month Volatility	Oct 21, 26	42.25%	-0.7%	+33.8%	-4.0%	+15.4%	+45.4%	-6.5%	-38.9%
1-Year Volatility	Oct 21, 26	43.09%	-0.5%	+5.9%	+7.1%	+5.5%	+8.4%	-18.6%	-17.8%
14-Day RSI	Oct 21, 26	54.20	-0.1%	-7.4%	+6.6%	+7.2%	+26.5%	+76.3%	+14.5%
Beta	Oct 21, 26	0.57	-1.7%	+21.3%	0.0%	+111.1%	+111.1%	+5800.0%	-5.0%
ATR	Oct 21, 26	$0.11	-7.1%	+33.3%	+21.8%	+21.0%	+28.5%	-27.5%	-20.3%
Price	Oct 21, 26	$3.50	+1.2%	+5.5%	+11.5%	+34.9%	+36.7%	+38.7%	+84.3%
200-Day SMA	Oct 21, 26	$3.15	+0.3%	+2.9%	+6.8%	+19.4%	+20.2%	+11.7%	+84.7%
50-Day SMA	Oct 21, 26	$3.25	+0.7%	+3.2%	+3.8%	+24.3%	+21.2%	+7.6%	+72.1%
20-Day SMA	Oct 21, 26	$3.41	+0.7%	+5.2%	+9.8%	+32.5%	+29.9%	+18.7%	+73.8%

10-Day Volatility History

Date	Value	Change
Oct 21, 2026	35.59%	-42.9%
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 35.59%
What 10-day volatility category does CIG.C fall into?: Based on its current 10-day historical volatility, CIG.C falls into the moderate volatility category
What is CIG.C 10-day volatility 1-year high?: CIG.C 10-day volatility reached a 1-year high of 90.30% on April 22, 2026
What is CIG.C 10-day volatility 1-year low?: CIG.C 10-day volatility reached a 1-year low of 11.86% on January 16, 2026

1-Month

57.47%

October 21, 2026

Summary

Current Value: As of today, CIG.C 1-month volatility is 57.47%, down -2.51% on October 21, 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 72.85% on April 22, 2026
1-Year Low: CIG.C 1-month volatility reached a 1-year low of 21.92% on January 16, 2026

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Oct 21, 26	57.47%	-2.5%	+76.5%	+92.1%	+18.0%	+96.1%	+27.0%	-9.1%
10-Day Volatility	Oct 21, 26	35.59%	-4.7%	+22.9%	+6.1%	-42.9%	+33.8%	-20.9%	-60.5%
3-Month Volatility	Oct 21, 26	42.25%	-0.7%	+33.8%	-4.0%	+15.4%	+45.4%	-6.5%	-38.9%
1-Year Volatility	Oct 21, 26	43.09%	-0.5%	+5.9%	+7.1%	+5.5%	+8.4%	-18.6%	-17.8%
14-Day RSI	Oct 21, 26	54.20	-0.1%	-7.4%	+6.6%	+7.2%	+26.5%	+76.3%	+14.5%
Beta	Oct 21, 26	0.57	-1.7%	+21.3%	0.0%	+111.1%	+111.1%	+5800.0%	-5.0%
ATR	Oct 21, 26	$0.11	-7.1%	+33.3%	+21.8%	+21.0%	+28.5%	-27.5%	-20.3%
Price	Oct 21, 26	$3.50	+1.2%	+5.5%	+11.5%	+34.9%	+36.7%	+38.7%	+84.3%
200-Day SMA	Oct 21, 26	$3.15	+0.3%	+2.9%	+6.8%	+19.4%	+20.2%	+11.7%	+84.7%
50-Day SMA	Oct 21, 26	$3.25	+0.7%	+3.2%	+3.8%	+24.3%	+21.2%	+7.6%	+72.1%
20-Day SMA	Oct 21, 26	$3.41	+0.7%	+5.2%	+9.8%	+32.5%	+29.9%	+18.7%	+73.8%

1-Month Volatility History

Date	Value	Change
Oct 21, 2026	57.47%	+20.8%
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 57.47%
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 72.85% on April 22, 2026
What is CIG.C 1-month volatility 1-year low?: CIG.C 1-month volatility reached a 1-year low of 21.92% on January 16, 2026

3-Month

42.25%

October 21, 2026

Summary

Current Value: As of today, CIG.C 3-month volatility is 42.25%, down -0.71% on October 21, 2026
Value Category: Based on its current 3-month historical volatility, CIG.C falls into the high volatility category
1-Year High: CIG.C 3-month volatility reached a 1-year high of 58.28% on June 18, 2026
1-Year Low: CIG.C 3-month volatility reached a 1-year low of 28.43% on October 28, 2025

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Oct 21, 26	42.25%	-0.7%	+33.8%	-4.0%	+15.4%	+45.4%	-6.5%	-38.9%
10-Day Volatility	Oct 21, 26	35.59%	-4.7%	+22.9%	+6.1%	-42.9%	+33.8%	-20.9%	-60.5%
1-Month Volatility	Oct 21, 26	57.47%	-2.5%	+76.5%	+92.1%	+18.0%	+96.1%	+27.0%	-9.1%
1-Year Volatility	Oct 21, 26	43.09%	-0.5%	+5.9%	+7.1%	+5.5%	+8.4%	-18.6%	-17.8%
14-Day RSI	Oct 21, 26	54.20	-0.1%	-7.4%	+6.6%	+7.2%	+26.5%	+76.3%	+14.5%
Beta	Oct 21, 26	0.57	-1.7%	+21.3%	0.0%	+111.1%	+111.1%	+5800.0%	-5.0%
ATR	Oct 21, 26	$0.11	-7.1%	+33.3%	+21.8%	+21.0%	+28.5%	-27.5%	-20.3%
Price	Oct 21, 26	$3.50	+1.2%	+5.5%	+11.5%	+34.9%	+36.7%	+38.7%	+84.3%
200-Day SMA	Oct 21, 26	$3.15	+0.3%	+2.9%	+6.8%	+19.4%	+20.2%	+11.7%	+84.7%
50-Day SMA	Oct 21, 26	$3.25	+0.7%	+3.2%	+3.8%	+24.3%	+21.2%	+7.6%	+72.1%
20-Day SMA	Oct 21, 26	$3.41	+0.7%	+5.2%	+9.8%	+32.5%	+29.9%	+18.7%	+73.8%

3-Month Volatility History

Date	Value	Change
Oct 21, 2026	42.25%	+14.0%
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 42.25%
What 3-month volatility category does CIG.C fall into?: Based on its current 3-month historical volatility, CIG.C falls into the high volatility category
What is CIG.C 3-month volatility 1-year high?: CIG.C 3-month volatility reached a 1-year high of 58.28% on June 18, 2026
What is CIG.C 3-month volatility 1-year low?: CIG.C 3-month volatility reached a 1-year low of 28.43% on October 28, 2025

1-Year

43.09%

October 21, 2026

Summary

Current Value: As of today, CIG.C 1-year volatility is 43.09%, down -0.53% on October 21, 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 43.66% on May 1, 2026
1-Year Low: CIG.C 1-year volatility reached a 1-year low of 38.95% on March 25, 2026

Performance

CIG.C Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Oct 21, 26	43.09%	-0.5%	+5.9%	+7.1%	+5.5%	+8.4%	-18.6%	-17.8%
10-Day Volatility	Oct 21, 26	35.59%	-4.7%	+22.9%	+6.1%	-42.9%	+33.8%	-20.9%	-60.5%
1-Month Volatility	Oct 21, 26	57.47%	-2.5%	+76.5%	+92.1%	+18.0%	+96.1%	+27.0%	-9.1%
3-Month Volatility	Oct 21, 26	42.25%	-0.7%	+33.8%	-4.0%	+15.4%	+45.4%	-6.5%	-38.9%
1-Year Volatility	Oct 21, 26	43.09%	-0.5%	+5.9%	+7.1%	+5.5%	+8.4%	-18.6%	-17.8%
14-Day RSI	Oct 21, 26	54.20	-0.1%	-7.4%	+6.6%	+7.2%	+26.5%	+76.3%	+14.5%
Beta	Oct 21, 26	0.57	-1.7%	+21.3%	0.0%	+111.1%	+111.1%	+5800.0%	-5.0%
ATR	Oct 21, 26	$0.11	-7.1%	+33.3%	+21.8%	+21.0%	+28.5%	-27.5%	-20.3%
Price	Oct 21, 26	$3.50	+1.2%	+5.5%	+11.5%	+34.9%	+36.7%	+38.7%	+84.3%
200-Day SMA	Oct 21, 26	$3.15	+0.3%	+2.9%	+6.8%	+19.4%	+20.2%	+11.7%	+84.7%
50-Day SMA	Oct 21, 26	$3.25	+0.7%	+3.2%	+3.8%	+24.3%	+21.2%	+7.6%	+72.1%
20-Day SMA	Oct 21, 26	$3.41	+0.7%	+5.2%	+9.8%	+32.5%	+29.9%	+18.7%	+73.8%

1-Year Volatility History

Date	Value	Change
Oct 21, 2026	43.09%	+5.5%
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 43.09%
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 43.66% on May 1, 2026
What is CIG.C 1-year volatility 1-year low?: CIG.C 1-year volatility reached a 1-year low of 38.95% on March 25, 2026

Data Sources & References

CIG.C Official Website www.cemig.com.br
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