What is the current annual operating margin of AEE?

As of today, AEE annual operating margin is 23.03%

What is 1-year change in AEE annual operating margin?

AEE annual operating margin is up +15.79% year-over-year

What is 3-year change in AEE annual operating margin?

AEE annual operating margin is up +20.96% over the past 3 years

How far is AEE annual operating margin from its all-time high?

AEE annual operating margin is currently -46.52% below its historical high of 43.06% set on December 1, 1989

How does AEE annual operating margin rank versus sector peers?

AEE annual operating margin is higher than 62.75% of companies in Utilities sector

When is AEE next annual earnings release?

The next annual earnings release for AEE is on February 10, 2027

What is the current quarterly operating margin of AEE?

As of today, AEE quarterly operating margin is 31.23%

What is AEE quarterly operating margin most recent change?

AEE quarterly operating margin was up +42.34% on September 30, 2026

What is 1-year change in AEE quarterly operating margin?

AEE quarterly operating margin is up +2.16% year-over-year

How far is AEE quarterly operating margin from its all-time high?

AEE quarterly operating margin is currently -33.81% below its historical high of 47.18% set on December 31, 1999

How does AEE quarterly operating margin rank versus sector peers?

AEE quarterly operating margin is higher than 80.00% of companies in Utilities sector

When is AEE next earnings release?

The next earnings release for AEE is on February 10, 2027

AEE Operating Margin History & Chart Since 1980

Annual Operating Margin

23.03%3.14%+15.79%

December 31, 2025

Summary

Current Value: As of today, AEE annual operating margin is 23.03%, up +15.79% on December 31, 2025
Historical Performance: AEE annual operating margin is up +20.96% over the past 3 years, up +2.63% over the past 5 years
All-Time High Comparison: AEE annual operating margin is currently -46.52% below its historical high of 43.06% set on December 1, 1989
3-Year Low Comparison: AEE annual operating margin is +20.96% above its 3-year low of 19.04% reached on an earlier date
Sector Comparison: AEE annual operating margin is higher than 62.75% of companies in Utilities sector

Operating Margin Chart

beforeafter

Performance

AEE Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Operating Margin	Dec 31, 25	23.03%	+15.8%	+21.0%	+2.6%	+17.3%
Quarterly Operating Margin	Sep 30, 26	31.23%	+2.2%	+4.8%	+5.9%	+2.2%
Price	Nov 12, 26	$113.52	+8.3%	+51.8%	+34.3%	+244.1%
PE Ratio	Nov 12, 26	19.73	-2.1%	+16.1%	-10.9%	+34.6%
Annual Revenue	Dec 31, 25	$8.80B	+15.4%	+10.6%	+51.9%	+15.1%
Annual Operating Profit	Dec 31, 25	$2.03B	+33.6%	+33.7%	+55.9%	+35.0%
Annual Gross Margin	Dec 31, 25	29.58%	+9.3%	+14.6%	-3.9%	+15.9%
Annual Net Margin	Dec 31, 25	16.60%	+6.6%	+22.4%	+9.6%	+738.4%

Operating Margin Highs

AEE Annual Operating Margin Highs Comparison
Period	High	Date	Current
3Y	23.03%	Dec 31, 25	at high
5Y	23.03%	Dec 31, 25	at high
All	43.06%	Dec 1, 89	-46.5%

Operating Margin Lows

AEE Annual Operating Margin Lows Comparison
Period	Low	Date	Current
3Y	19.04%	N/A	+21.0%
5Y	19.04%	Dec 31, 22	+21.0%
All	17.14%	Dec 31, 06	+34.4%

Operating Margin History

Year	Value	Change
2025	23.03%	+15.8%
2024	19.89%	-4.2%
2023	20.77%	+9.1%
2022	19.04%	-8.7%
2021	20.85%	-7.1%
2020	22.44%	+4.7%
2019	21.44%	-0.6%
2018	21.57%	-5.6%
2017	22.84%	+0.5%
2016	22.73%	+10.1%
2015	20.65%	-0.3%
2014	20.72%	+2.3%
2013	20.26%	+2.0%
2012	19.86%	+9.1%
2011	18.20%	-7.3%
2010	19.64%	-4.2%
2009	20.50%	+12.9%
2008	18.16%	+3.2%
2007	17.59%	+2.6%
2006	17.14%	-9.4%
2005	18.92%	-9.9%
2004	20.99%	-7.2%
2003	22.62%	-10.0%

Year	Value	Change
2002	25.12%	+17.3%
2001	21.42%	-14.6%
2000	25.08%	+1.2%
1999	24.79%	-4.8%
1998	26.04%	+6.1%
1997	24.54%	-11.3%
1996	27.68%	-10.7%
1995	30.98%	+1.6%
1994	30.48%	+6.6%
1993	28.59%	-4.5%
1992	29.94%	-11.0%
1991	33.64%	+4.7%
1990	32.12%	-25.4%
1989	43.06%	+28.8%
1988	33.43%	-2.7%
1987	34.37%	+1.7%
1986	33.81%	+7.7%
1985	31.38%	+15.4%
1984	27.20%	+0.2%
1983	27.15%	+9.3%
1982	24.85%	+4.8%
1981	23.72%	-9.7%
1980	26.26%	-

FAQ

What is the current annual operating margin of AEE?: As of today, AEE annual operating margin is 23.03%
What is 1-year change in AEE annual operating margin?: AEE annual operating margin is up +15.79% year-over-year
What is 3-year change in AEE annual operating margin?: AEE annual operating margin is up +20.96% over the past 3 years
How far is AEE annual operating margin from its all-time high?: AEE annual operating margin is currently -46.52% below its historical high of 43.06% set on December 1, 1989
How does AEE annual operating margin rank versus sector peers?: AEE annual operating margin is higher than 62.75% of companies in Utilities sector
When is AEE next annual earnings release?: The next annual earnings release for AEE is on February 10, 2027

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Quarterly Operating Margin

31.23%9.29%+42.34%

September 30, 2026

Summary

Current Value: As of today, AEE quarterly operating margin is 31.23%, up +42.34% on September 30, 2026
Historical Performance: AEE quarterly operating margin is up +2.16% year-over-year, up +4.76% over the past 3 years
All-Time High Comparison: AEE quarterly operating margin is currently -33.81% below its historical high of 47.18% set on December 31, 1999
3-Year Low Comparison: AEE quarterly operating margin is +206.18% above its 3-year low of 10.20% reached on December 31, 2024
Sector Comparison: AEE quarterly operating margin is higher than 80.00% of companies in Utilities sector

Performance

AEE Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Operating Margin	Sep 30, 26	31.23%	+42.3%	+2.2%	+4.8%	+5.9%
Annual Operating Margin	Dec 31, 25	23.03%	–	+15.8%	+21.0%	+2.6%
Price	Nov 12, 26	$113.52	+4.0%	+8.3%	+51.8%	+34.3%
PE Ratio	Nov 12, 26	19.73	+2.7%	-2.1%	+16.1%	-10.9%
Quarterly Revenue	Sep 30, 26	$2.88B	+37.8%	+6.8%	+39.9%	+59.1%
Quarterly Operating Profit	Sep 30, 26	$900.00M	+96.1%	+9.1%	+46.6%	+68.5%
Quarterly Gross Margin	Sep 30, 26	37.27%	+28.9%	+1.7%	+0.9%	-0.2%
Quarterly Net Margin	Sep 30, 26	23.49%	+55.5%	-1.1%	-2.0%	-0.1%

Quarterly Operating Margin Highs

AEE Quarterly Operating Margin Highs Comparison
Period	High	Date	Current
1Y	31.23%	Sep 30, 26	at high
3Y	31.23%	Sep 30, 26	at high
5Y	31.23%	Sep 30, 26	at high
All	47.18%	Dec 31, 99	-33.8%

Quarterly Operating Margin Lows

AEE Quarterly Operating Margin Lows Comparison
Period	Low	Date	Current
1Y	20.20%	Dec 31, 25	+54.6%
3Y	10.20%	Dec 31, 24	+206.2%
5Y	10.20%	Dec 31, 24	+206.2%
All	-12.43%	Dec 31, 04	+351.3%

Quarterly Operating Margin History

Month	Value	Change
Sep 2026	31.23%	+42.3%
Jun 2026	21.94%	-10.3%
Mar 2026	24.45%	+21.0%
Dec 2025	20.20%	-33.9%
Sep 2025	30.57%	+65.2%
Jun 2025	18.51%	-9.8%
Mar 2025	20.51%	+101.1%
Dec 2024	10.20%	-62.2%
Sep 2024	26.97%	+26.5%
Jun 2024	21.32%	+4.4%
Mar 2024	20.43%	+25.2%
Dec 2023	16.32%	-45.3%
Sep 2023	29.81%	+59.5%
Jun 2023	18.69%	+9.8%
Mar 2023	17.02%	+26.2%
Dec 2022	13.49%	-48.1%
Sep 2022	25.98%	+45.1%
Jun 2022	17.90%	+1.6%
Mar 2022	17.62%	+38.2%
Dec 2021	12.75%	-56.8%
Sep 2021	29.49%	+51.8%
Jun 2021	19.43%	-3.7%
Mar 2021	20.18%	+27.0%
Dec 2020	15.89%	-47.6%
Sep 2020	30.34%	+19.8%
Jun 2020	25.32%	+51.3%
Mar 2020	16.74%	+23.1%
Dec 2019	13.60%	-56.6%
Sep 2019	31.34%	+54.4%
Jun 2019	20.30%	+9.7%
Mar 2019	18.51%	+58.2%
Dec 2018	11.70%	-62.2%
Sep 2018	30.92%	+25.5%
Jun 2018	24.63%	+43.0%
Mar 2018	17.22%	+7.3%
Dec 2017	16.05%	-51.4%
Sep 2017	33.02%	+31.1%
Jun 2017	25.18%	+50.1%
Mar 2017	16.78%	+57.0%
Dec 2016	10.69%	-71.2%
Sep 2016	37.17%	+63.2%
Jun 2016	22.78%	+48.5%
Mar 2016	15.34%	+43.4%
Dec 2015	10.70%	-68.7%
Sep 2015	34.15%	+101.8%
Jun 2015	16.92%	+2.9%
Mar 2015	16.45%	+80.4%
Dec 2014	9.12%	-72.8%
Sep 2014	33.59%	+47.6%
Jun 2014	22.76%	+48.1%
Mar 2014	15.37%	+18.9%
Dec 2013	12.93%	-62.7%
Sep 2013	34.68%	+88.6%
Jun 2013	18.39%	+47.5%
Mar 2013	12.47%	+35.0%
Dec 2012	9.24%	-70.6%
Sep 2012	31.45%	+37.4%
Jun 2012	22.89%	+80.2%

Month	Value	Change
Mar 2012	12.70%	+39.4%
Dec 2011	9.11%	-70.2%
Sep 2011	30.55%	+67.0%
Jun 2011	18.29%	+66.0%
Mar 2011	11.02%	+2.9%
Dec 2010	10.71%	-63.4%
Sep 2010	29.27%	+36.8%
Jun 2010	21.40%	+49.1%
Mar 2010	14.35%	-3.0%
Dec 2009	14.80%	-48.3%
Sep 2009	28.65%	+29.6%
Jun 2009	22.11%	+34.2%
Mar 2009	16.48%	+5.9%
Dec 2008	15.56%	-39.8%
Sep 2008	25.85%	+59.9%
Jun 2008	16.17%	+11.7%
Mar 2008	14.48%	+5.5%
Dec 2007	13.72%	-42.7%
Sep 2007	23.95%	+28.3%
Jun 2007	18.66%	+34.5%
Mar 2007	13.87%	+44.0%
Dec 2006	9.63%	-66.4%
Sep 2006	28.64%	+59.1%
Jun 2006	18.00%	+64.5%
Mar 2006	10.94%	+39.9%
Dec 2005	7.82%	-71.6%
Sep 2005	27.52%	+18.9%
Jun 2005	23.14%	+40.4%
Mar 2005	16.48%	+232.6%
Dec 2004	-12.43%	-139.6%
Sep 2004	31.36%	+46.9%
Jun 2004	21.35%	+20.2%
Mar 2004	17.76%	+33.7%
Dec 2003	13.28%	-60.1%
Sep 2003	33.26%	+97.7%
Jun 2003	16.82%	-7.3%
Mar 2003	18.14%	+32.1%
Dec 2002	13.73%	-43.1%
Sep 2002	24.11%	-3.3%
Jun 2002	24.93%	+28.1%
Mar 2002	19.46%	+80.2%
Dec 2001	10.80%	-50.2%
Sep 2001	21.68%	+11.3%
Jun 2001	19.48%	+20.6%
Mar 2001	16.15%	+116.2%
Dec 2000	7.47%	-81.0%
Sep 2000	39.27%	+54.9%
Jun 2000	25.36%	+36.9%
Mar 2000	18.52%	-60.7%
Dec 1999	47.18%	+22.5%
Sep 1999	38.52%	+72.3%
Jun 1999	22.36%	-10.7%
Mar 1999	25.05%	+42.4%
Dec 1998	17.59%	-55.1%
Sep 1998	39.14%	+72.0%
Jun 1998	22.75%	+32.5%
Mar 1998	17.17%	-

FAQ

What is the current quarterly operating margin of AEE?: As of today, AEE quarterly operating margin is 31.23%
What is AEE quarterly operating margin most recent change?: AEE quarterly operating margin was up +42.34% on September 30, 2026
What is 1-year change in AEE quarterly operating margin?: AEE quarterly operating margin is up +2.16% year-over-year
How far is AEE quarterly operating margin from its all-time high?: AEE quarterly operating margin is currently -33.81% below its historical high of 47.18% set on December 31, 1999
How does AEE quarterly operating margin rank versus sector peers?: AEE quarterly operating margin is higher than 80.00% of companies in Utilities sector
When is AEE next earnings release?: The next earnings release for AEE is on February 10, 2027

Operating Margin Formula

Operating Profit Margin = Operating Income

Revenue × 100%

Data Sources & References

AEE Official Website www.amereninvestors.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1002910/000110465925119977/0001104659-25-119977-index.htm
AEE Profile on Yahoo Finance finance.yahoo.com/quote/AEE
AEE Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/aee