Basis: Latest reported fiscal quarter. Source: stored company filings and market data; unavailable inputs remain N/A.
Is the operating margin high or low?
The operating margin of 38.97% is 39% above its 5-year average of 27.99%, near the high end of its 5-year range (14.59%–39.07%).
As of the fiscal period ended Tuesday, March 31, 2026. 15.05% above its 12-month average of 33.87%.
Reported quarterly operating margin; no daily interpolation.
OPERATING MARGIN
38.97%
OPERATING MARGIN AVG TTM
33.87%
OPERATING MARGIN AVG 3Y
31.93%
OPERATING MARGIN AVG 5Y
27.99%
OPERATING MARGIN AVG 10Y
26.71%
OPERATING MARGIN AVG 15Y
22.10%
OPERATING MARGIN AVG 20Y
18.35%
CURRENT VS TTM AVG
+15.05%
CURRENT VS 3Y AVG
+22.07%
CURRENT VS 5Y AVG
+39.24%
CURRENT VS 10Y AVG
+45.93%
CURRENT VS 15Y AVG
+76.33%
CURRENT VS 20Y AVG
+112.43%
SECTOR MEDIAN · UTILITIES
22.57%
median of 41 covered companies
CURRENT VS SECTOR MEDIAN
+72.68%
vs the sector median at left
Atmos Energy Corporation
Market Cap
$30.17B
Operating Margin
38.97%
TTM Avg
33.87%
3Y Avg
31.93%
5Y Avg
27.99%
Market Cap
$30.39B
Operating Margin
12.71%
TTM Avg
15.90%
3Y Avg
14.62%
5Y Avg
13.68%
Market Cap
$30.65B
Operating Margin
36.72%
TTM Avg
26.68%
3Y Avg
19.52%
5Y Avg
16.16%
Market Cap
$30.98B
Operating Margin
23.97%
TTM Avg
21.46%
3Y Avg
20.68%
5Y Avg
21.00%
Market Cap
$29.00B
Operating Margin
18.57%
TTM Avg
18.20%
3Y Avg
17.33%
5Y Avg
17.48%
Market Cap
$28.81B
Operating Margin
23.24%
TTM Avg
22.79%
3Y Avg
20.65%
5Y Avg
18.82%
Market Cap
$28.30B
Operating Margin
22.52%
TTM Avg
22.40%
3Y Avg
20.71%
5Y Avg
20.89%
Market Cap
$27.45B
Operating Margin
23.50%
TTM Avg
22.05%
3Y Avg
20.28%
5Y Avg
22.45%
Market Cap
$27.10B
Operating Margin
36.48%
TTM Avg
36.62%
3Y Avg
35.58%
5Y Avg
34.30%
| NAME | MARKET CAP | OPERATING MARGIN | TTM | 3Y | 5Y |
|---|---|---|---|---|---|
| Atmos Energy Corporation (ATO) | $30.17B | 38.97% | 33.87% | 31.93% | 27.99% |
| DTE Energy Company (DTE)vs › | $30.39B | 12.71% | 15.90% | 14.62% | 13.68% |
| Edison International (EIX)vs › | $30.65B | 36.72% | 26.68% | 19.52% | 16.16% |
| Ameren Corporation (AEE)vs › | $30.98B | 23.97% | 21.46% | 20.68% | 21.00% |
| FirstEnergy Corp. (FE)vs › | $29.00B | 18.57% | 18.20% | 17.33% | 17.48% |
| CenterPoint Energy, Inc. (CNP)vs › | $28.81B | 23.24% | 22.79% | 20.65% | 18.82% |
| Eversource Energy (ES)vs › | $28.30B | 22.52% | 22.40% | 20.71% | 20.89% |
| PPL Corporation (PPL)vs › | $27.45B | 23.50% | 22.05% | 20.28% | 22.45% |
| American Water Works Company, Inc. (AWK)vs › | $27.10B | 36.48% | 36.62% | 35.58% | 34.30% |
| NRG Energy, Inc. (NRG)vs › | $26.51B | 3.00% | 7.32% | 5.59% | 7.82% |
Gross Margin
51.4%
Operating Margin
39.0%
Operating Margin = Operating Income / Revenue
Operating margin is the percentage of revenue remaining after operating expenses, reflecting operating efficiency.
Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute
| DATE | OPERATING MARGIN |
|---|---|
| 2026-03-31 | 38.97% |
| 2025-12-31 | 38.34% |
| 2025-09-30 | 29.76% |
| 2025-06-30 | 30.05% |
| 2025-03-31 | 32.24% |
| 2024-12-31 | 39.07% |
| 2024-09-30 | 28.12% |
| 2024-06-30 | 31.40% |
| 2024-03-31 | 33.45% |
| 2023-12-31 | 34.45% |
| 2023-09-30 | 26.22% |
| 2023-06-30 | 25.54% |
| 2023-03-31 | 27.43% |
| 2022-12-31 | 21.64% |
| 2022-09-30 | 14.59% |
| 2022-06-30 | 18.93% |
| 2022-03-31 | 23.34% |
| 2021-12-31 | 27.24% |
| 2021-09-30 | 16.00% |
| 2021-06-30 | 22.03% |
| 2021-03-31 | 28.94% |
| 2020-12-31 | 32.68% |
| 2020-09-30 | 21.23% |
| 2020-06-30 | 28.20% |
| 2020-03-31 | 33.90% |
| 2019-12-31 | 28.87% |
| 2019-09-30 | 20.22% |
| 2019-06-30 | 25.16% |
| 2019-03-31 | 27.19% |
| 2018-12-31 | 26.94% |
| 2018-09-30 | 20.15% |
| 2018-06-30 | 22.11% |
| 2018-03-31 | 22.22% |
| 2017-12-31 | 27.23% |
| 2017-09-30 | 19.75% |
| 2017-06-30 | 26.72% |
| 2017-03-31 | 28.86% |
| 2016-12-31 | 26.91% |
| 2016-09-30 | 12.47% |
| 2016-06-30 | 28.14% |
| 2016-03-31 | 28.27% |
| 2015-12-31 | 28.56% |
| 2015-09-30 | 11.55% |
| 2015-06-30 | 17.13% |
| 2015-03-31 | 16.25% |
| 2014-12-31 | 14.91% |
| 2014-09-30 | 10.78% |
| 2014-06-30 | 11.30% |
| 2014-03-31 | 12.73% |
| 2013-12-31 | 13.73% |
| 2013-09-30 | 7.35% |
| 2013-06-30 | 10.07% |
| 2013-03-31 | 16.06% |
| 2012-12-31 | 14.98% |
| 2012-09-30 | 1.71% |
| 2012-06-30 | 14.15% |
| 2012-03-31 | 16.52% |
| 2011-12-31 | 12.87% |
| 2011-09-30 | 5.24% |
| 2011-06-30 | 4.04% |
| 2011-03-31 | 13.35% |
| 2010-12-31 | 13.70% |
| 2010-09-30 | 5.11% |
| 2010-06-30 | 4.24% |
| 2010-03-31 | 11.57% |
| 2009-12-31 | 14.74% |
| 2009-09-30 | 2.15% |
| 2009-06-30 | 5.59% |
| 2009-03-31 | 12.44% |
| 2008-12-31 | 9.51% |
| 2008-09-30 | 2.61% |
| 2008-06-30 | 1.26% |
| 2008-03-31 | 8.50% |
| 2007-12-31 | 9.56% |
| 2007-09-30 | 1.07% |
| 2007-06-30 | 0.63% |
| 2007-03-31 | 10.07% |
| 2006-12-31 | 10.68% |
| 2006-09-30 | 4.87% |
| 2006-06-30 | 0.56% |
| 2006-03-31 | 8.89% |
| 2005-12-31 | 6.55% |
| 2005-09-30 | 0.83% |
| 2005-06-30 | 4.34% |
| 2005-03-31 | 10.22% |
| 2004-12-31 | 9.40% |
| 2004-09-30 | 0.67% |
| 2004-06-30 | 3.93% |
| 2004-03-31 | 9.43% |
| 2003-12-31 | 8.32% |
| 2003-09-30 | 0.92% |
| 2003-06-30 | 2.88% |
| 2003-03-31 | 9.03% |
| 2002-12-31 | 13.11% |
| 2002-09-30 | 4.61% |
| 2002-06-30 | 11.85% |
