What is the current annual operating margin of CIG.C?

As of today, CIG.C annual operating margin is 14.09%

What is 1-year change in CIG.C annual operating margin?

CIG.C annual operating margin is down -16.38% year-over-year

What is 3-year change in CIG.C annual operating margin?

CIG.C annual operating margin is down -17.89% over the past 3 years

How far is CIG.C annual operating margin from its all-time high?

CIG.C annual operating margin is currently -53.76% below its historical high of 30.47% set on December 1, 2014

How does CIG.C annual operating margin rank versus sector peers?

CIG.C annual operating margin is higher than 32.08% of companies in Utilities sector

When is CIG.C next annual earnings release?

As of today, the next annual earnings release for CIG.C has not been scheduled

What is the current quarterly operating margin of CIG.C?

As of today, CIG.C quarterly operating margin is 16.21%

What is CIG.C quarterly operating margin most recent change?

CIG.C quarterly operating margin was up +27.04% on June 1, 2026

What is 1-year change in CIG.C quarterly operating margin?

CIG.C quarterly operating margin is down -2.53% year-over-year

How far is CIG.C quarterly operating margin from its all-time high?

CIG.C quarterly operating margin is currently -68.61% below its historical high of 51.64% set on December 1, 2004

How does CIG.C quarterly operating margin rank versus sector peers?

CIG.C quarterly operating margin is higher than 40.00% of companies in Utilities sector

When is CIG.C next earnings release?

As of today, the next earnings release for CIG.C has not been scheduled

CIG.C Operating Margin History & Chart Since 1987

Annual Operating Margin

14.09%2.76%-16.38%

December 1, 2025

Summary

Current Value: As of today, CIG.C annual operating margin is 14.09%, down -16.38% on December 1, 2025
Historical Performance: CIG.C annual operating margin is down -17.89% over the past 3 years, down -21.81% over the past 5 years
All-Time High Comparison: CIG.C annual operating margin is currently -53.76% below its historical high of 30.47% set on December 1, 2014
3-Year Low Comparison: CIG.C annual operating margin is at its 3-year low
Sector Comparison: CIG.C annual operating margin is higher than 32.08% of companies in Utilities sector

Operating Margin Chart

beforeafter

Performance

CIG.C Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Operating Margin	Dec 1, 25	14.09%	-16.4%	-17.9%	-21.8%	-46.5%
Quarterly Operating Margin	Jun 1, 26	16.21%	-2.5%	-12.8%	-13.6%	-40.4%
Price	Oct 21, 26	$3.50	+36.7%	+38.7%	+84.3%	+3.5%
PE Ratio	Oct 21, 26	11.55	+11.1%	+66.7%	+61.8%	+43.0%
Annual Revenue	Dec 1, 25	$7.65B	+3.6%	+14.7%	+56.5%	-2.8%
Annual Operating Profit	Dec 1, 25	$1.08B	-13.4%	-5.8%	+22.4%	-48.0%
Annual Gross Margin	Dec 1, 25	16.86%	-12.5%	-13.8%	-19.1%	-41.8%
Annual Net Margin	Dec 1, 25	11.46%	-35.9%	-3.5%	+0.9%	-29.7%

Operating Margin Highs

CIG.C Annual Operating Margin Highs Comparison
Period	High	Date	Current
3Y	18.05%	Dec 31, 23	-21.9%
5Y	18.05%	Dec 31, 23	-21.9%
All	30.47%	Dec 1, 14	-53.8%

Operating Margin Lows

CIG.C Annual Operating Margin Lows Comparison
Period	Low	Date	Current
3Y	14.09%	Dec 1, 25	at low
5Y	14.09%	Dec 1, 25	at low
All	-29.66%	Dec 1, 92	+147.5%

Operating Margin History

Year	Value	Change
2025	14.09%	-16.4%
2024	16.85%	-6.6%
2023	18.05%	+5.2%
2022	17.16%	-1.5%
2021	17.42%	-3.3%
2020	18.02%	+13.1%
2019	15.93%	+1.8%
2018	15.65%	+18.8%
2017	13.17%	-22.7%
2016	17.03%	-11.0%
2015	19.14%	-37.2%
2014	30.47%	+18.1%
2013	25.80%	+33.4%
2012	19.34%	-29.6%
2011	27.47%	+4.3%
2010	26.34%	-13.0%
2009	30.26%	+9.3%
2008	27.68%	-0.1%
2007	27.72%	+14.7%
2006	24.17%	-9.6%

Year	Value	Change
2005	26.75%	+11.1%
2004	24.08%	+10.4%
2003	21.81%	+112.4%
2002	10.27%	-44.0%
2001	18.34%	-1.3%
2000	18.58%	+41.3%
1999	13.15%	-51.4%
1998	27.04%	+51.2%
1997	17.88%	+252.7%
1996	5.07%	+487.0%
1995	-1.31%	-109.2%
1994	14.25%	+252.9%
1993	-9.32%	+68.6%
1992	-29.66%	-597.7%
1991	5.96%	-52.7%
1990	12.60%	+254.4%
1989	-8.16%	-162.7%
1988	13.01%	-37.8%
1987	20.90%	-

FAQ

What is the current annual operating margin of CIG.C?: As of today, CIG.C annual operating margin is 14.09%
What is 1-year change in CIG.C annual operating margin?: CIG.C annual operating margin is down -16.38% year-over-year
What is 3-year change in CIG.C annual operating margin?: CIG.C annual operating margin is down -17.89% over the past 3 years
How far is CIG.C annual operating margin from its all-time high?: CIG.C annual operating margin is currently -53.76% below its historical high of 30.47% set on December 1, 2014
How does CIG.C annual operating margin rank versus sector peers?: CIG.C annual operating margin is higher than 32.08% of companies in Utilities sector
When is CIG.C next annual earnings release?: As of today, the next annual earnings release for CIG.C has not been scheduled

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Quarterly Operating Margin

16.21%3.45%+27.04%

June 1, 2026

Summary

Current Value: As of today, CIG.C quarterly operating margin is 16.21%, up +27.04% on June 1, 2026
Historical Performance: CIG.C quarterly operating margin is down -2.53% year-over-year, down -12.76% over the past 3 years
All-Time High Comparison: CIG.C quarterly operating margin is currently -68.61% below its historical high of 51.64% set on December 1, 2004
3-Year Low Comparison: CIG.C quarterly operating margin is +55.72% above its 3-year low of 10.41% reached on September 1, 2025
Sector Comparison: CIG.C quarterly operating margin is higher than 40.00% of companies in Utilities sector

Performance

CIG.C Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Operating Margin	Jun 1, 26	16.21%	+27.0%	-2.5%	-12.8%	-13.6%
Annual Operating Margin	Dec 1, 25	14.09%	–	-16.4%	-17.9%	-21.8%
Price	Oct 21, 26	$3.50	+11.5%	+36.7%	+38.7%	+84.3%
PE Ratio	Oct 21, 26	11.55	+11.5%	+11.1%	+66.7%	+61.8%
Quarterly Revenue	Jun 1, 26	$2.21B	+10.9%	+16.0%	+23.9%	+58.8%
Quarterly Operating Profit	Jun 1, 26	$357.77M	+40.9%	+13.1%	+8.1%	+37.2%
Quarterly Gross Margin	Jun 1, 26	16.99%	+7.3%	-9.1%	-17.9%	-12.8%
Quarterly Net Margin	Jun 1, 26	8.47%	-9.5%	-23.1%	-40.0%	-68.0%

Quarterly Operating Margin Highs

CIG.C Quarterly Operating Margin Highs Comparison
Period	High	Date	Current
1Y	16.21%	Jun 1, 26	at high
3Y	21.99%	Jun 30, 24	-26.3%
5Y	21.99%	Jun 30, 24	-26.3%
All	51.64%	Dec 1, 04	-68.6%

Quarterly Operating Margin Lows

CIG.C Quarterly Operating Margin Lows Comparison
Period	Low	Date	Current
1Y	10.41%	N/A	+55.7%
3Y	10.41%	Sep 1, 25	+55.7%
5Y	1.18%	Jun 1, 22	+1273.7%
All	-7.91%	Jun 1, 02	+304.9%

Quarterly Operating Margin History

Month	Value	Change
Jun 2026	16.21%	+27.0%
Mar 2026	12.76%	+13.3%
Dec 2025	11.26%	+8.2%
Sep 2025	10.41%	-37.4%
Jun 2025	16.63%	+13.0%
Mar 2025	14.72%	+1.7%
Dec 2024	14.47%	+1.8%
Sep 2024	14.21%	-35.4%
Jun 2024	21.99%	+26.5%
Mar 2024	17.39%	+7.9%
Dec 2023	16.12%	-9.4%
Sep 2023	17.79%	-4.3%
Jun 2023	18.58%	-7.2%
Mar 2023	20.02%	+7.6%
Dec 2022	18.60%	+13.8%
Sep 2022	16.34%	+1,284.7%
Jun 2022	1.18%	-94.4%
Mar 2022	21.07%	+35.7%
Dec 2021	15.53%	+3.1%
Sep 2021	15.07%	-19.6%
Jun 2021	18.75%	-13.9%
Mar 2021	21.78%	+115.9%
Dec 2020	10.09%	-56.9%
Sep 2020	23.42%	+72.2%
Jun 2020	13.60%	-31.6%
Mar 2020	19.87%	+17.9%
Dec 2019	16.85%	+435.0%
Sep 2019	-5.03%	-119.4%
Jun 2019	25.99%	+12.4%
Mar 2019	23.12%	+15.2%
Dec 2018	20.07%	+83.1%
Sep 2018	10.96%	-24.0%
Jun 2018	14.42%	-18.1%
Mar 2018	17.61%	+14.3%
Dec 2017	15.41%	+374.2%
Sep 2017	3.25%	-73.6%
Jun 2017	12.30%	-43.2%
Mar 2017	21.65%	+6.1%
Dec 2016	20.41%	-12.6%
Sep 2016	23.36%	+34.1%
Jun 2016	17.42%	+19.6%
Mar 2016	14.57%	-31.4%
Dec 2015	21.23%	+110.2%
Sep 2015	10.10%	-59.4%
Jun 2015	24.90%	-15.1%
Mar 2015	29.33%	-3.6%
Dec 2014	30.41%	+177.2%
Sep 2014	10.97%	-61.6%
Jun 2014	28.56%	-26.1%
Mar 2014	38.63%	+96.4%
Dec 2013	19.67%	-18.4%
Sep 2013	24.11%	-5.0%

Month	Value	Change
Jun 2013	25.39%	-30.9%
Mar 2013	36.76%	+577.0%
Dec 2012	5.43%	-79.5%
Sep 2012	26.46%	-2.0%
Jun 2012	27.01%	-7.1%
Mar 2012	29.08%	+20.0%
Dec 2011	24.24%	-14.9%
Sep 2011	28.49%	+4.8%
Jun 2011	27.19%	-13.1%
Mar 2011	31.28%	+32.6%
Dec 2010	23.59%	-13.5%
Sep 2010	27.26%	+12.1%
Jun 2010	24.31%	-26.4%
Mar 2010	33.02%	+40.5%
Dec 2009	23.50%	-19.4%
Sep 2009	29.16%	+6.2%
Jun 2009	27.46%	+11.6%
Mar 2009	24.60%	+50.0%
Dec 2008	16.40%	-50.3%
Sep 2008	32.98%	+18.7%
Jun 2008	27.78%	-11.4%
Mar 2008	31.37%	+123.6%
Dec 2007	14.03%	-57.5%
Sep 2007	33.05%	+2.0%
Jun 2007	32.41%	+9.9%
Mar 2007	29.49%	+11.5%
Dec 2006	26.44%	+0.9%
Sep 2006	26.20%	+61.8%
Jun 2006	16.19%	-34.0%
Mar 2006	24.54%	+1,518.5%
Dec 2005	-1.73%	-106.9%
Sep 2005	25.21%	-24.0%
Jun 2005	33.17%	+0.6%
Mar 2005	32.97%	-36.2%
Dec 2004	51.64%	+110.5%
Sep 2004	24.53%	+12.3%
Jun 2004	21.84%	-39.2%
Mar 2004	35.91%	+37.1%
Dec 2003	26.19%	+2.6%
Sep 2003	25.52%	+21.0%
Jun 2003	21.09%	+86.5%
Mar 2003	11.31%	-64.8%
Dec 2002	32.11%	+783.2%
Sep 2002	-4.70%	+40.6%
Jun 2002	-7.91%	-150.3%
Mar 2002	15.73%	-65.4%
Dec 2001	45.43%	+1,267.9%
Sep 2001	-3.89%	-127.5%
Jun 2001	14.15%	+9.9%
Mar 2001	12.87%	-40.8%
Jun 1999	21.73%	-

FAQ

What is the current quarterly operating margin of CIG.C?: As of today, CIG.C quarterly operating margin is 16.21%
What is CIG.C quarterly operating margin most recent change?: CIG.C quarterly operating margin was up +27.04% on June 1, 2026
What is 1-year change in CIG.C quarterly operating margin?: CIG.C quarterly operating margin is down -2.53% year-over-year
How far is CIG.C quarterly operating margin from its all-time high?: CIG.C quarterly operating margin is currently -68.61% below its historical high of 51.64% set on December 1, 2004
How does CIG.C quarterly operating margin rank versus sector peers?: CIG.C quarterly operating margin is higher than 40.00% of companies in Utilities sector
When is CIG.C next earnings release?: As of today, the next earnings release for CIG.C has not been scheduled

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

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