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 34.67% is 48% above its 5-year average of 23.41%, near the high end of its 5-year range (12.11%–34.78%).
As of the fiscal period ended Tuesday, March 31, 2026. 23.46% above its 12-month average of 28.08%.
Reported quarterly operating margin; no daily interpolation.
OPERATING MARGIN
34.67%
OPERATING MARGIN AVG TTM
28.08%
OPERATING MARGIN AVG 3Y
25.67%
OPERATING MARGIN AVG 5Y
23.41%
OPERATING MARGIN AVG 10Y
19.59%
OPERATING MARGIN AVG 15Y
19.05%
OPERATING MARGIN AVG 20Y
16.78%
CURRENT VS TTM AVG
+23.46%
CURRENT VS 3Y AVG
+35.07%
CURRENT VS 5Y AVG
+48.08%
CURRENT VS 10Y AVG
+76.93%
CURRENT VS 15Y AVG
+81.94%
CURRENT VS 20Y AVG
+106.55%
SECTOR MEDIAN · UTILITIES
21.85%
median of 42 covered companies
CURRENT VS SECTOR MEDIAN
+58.66%
vs the sector median at left
Market Cap
$22.57B
Operating Margin
19.53%
TTM Avg
20.00%
3Y Avg
17.70%
5Y Avg
17.60%
Market Cap
$18.28B
Operating Margin
23.01%
TTM Avg
22.88%
3Y Avg
22.81%
5Y Avg
22.43%
Market Cap
$26.66B
Operating Margin
36.94%
TTM Avg
36.62%
3Y Avg
35.58%
5Y Avg
34.30%
Market Cap
$26.92B
Operating Margin
22.52%
TTM Avg
22.40%
3Y Avg
20.71%
5Y Avg
20.89%
Market Cap
$15.17B
Operating Margin
0.61%
TTM Avg
4.29%
3Y Avg
4.08%
5Y Avg
-1.76%
Market Cap
$27.69B
Operating Margin
23.24%
TTM Avg
22.79%
3Y Avg
20.65%
5Y Avg
18.82%
| NAME | MARKET CAP | OPERATING MARGIN | TTM | 3Y | 5Y |
|---|---|---|---|---|---|
| NiSource Inc (NI) | $21.30B | 34.67% | 28.08% | 25.67% | 23.41% |
| CMS Energy Corporation (CMS)vs › | $22.57B | 19.53% | 20.00% | 17.70% | 17.60% |
| Evergy, Inc. (EVRG)vs › | $19.13B | 25.42% | 25.00% | 23.80% | 23.80% |
| Alliant Energy Corporation (LNT)vs › | $18.28B | 23.01% | 22.88% | 22.81% | 22.43% |
| PPL Corporation (PPL)vs › | $26.49B | 23.50% | 22.05% | 20.28% | 22.45% |
| American Water Works Company, Inc. (AWK)vs › | $26.66B | 36.94% | 36.62% | 35.58% | 34.30% |
| Eversource Energy (ES)vs › | $26.92B | 22.52% | 22.40% | 20.71% | 20.89% |
| Talen Energy Corporation (TLN)vs › | $15.17B | 0.61% | 4.29% | 4.08% | -1.76% |
| CenterPoint Energy, Inc. (CNP)vs › | $27.69B | 23.24% | 22.79% | 20.65% | 18.82% |
| FirstEnergy Corp. (FE)vs › | $27.95B | 18.57% | 18.20% | 17.33% | 17.48% |
Gross Margin
55.9%
Operating Margin
34.7%
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 | 34.67% |
| 2025-12-31 | 27.09% |
| 2025-09-30 | 23.37% |
| 2025-06-30 | 20.49% |
| 2025-03-31 | 34.78% |
| 2024-12-31 | 26.25% |
| 2024-09-30 | 20.28% |
| 2024-06-30 | 21.85% |
| 2024-03-31 | 34.19% |
| 2023-12-31 | 25.50% |
| 2023-09-30 | 22.68% |
| 2023-06-30 | 15.50% |
| 2023-03-31 | 27.01% |
| 2022-12-31 | 21.44% |
| 2022-09-30 | 14.38% |
| 2022-06-30 | 12.11% |
| 2022-03-31 | 32.05% |
| 2021-12-31 | 20.19% |
| 2021-09-30 | 15.33% |
| 2021-06-30 | 14.42% |
| 2021-03-31 | 28.03% |
| 2020-12-31 | 18.01% |
| 2020-09-30 | 10.28% |
| 2020-06-30 | 9.53% |
| 2020-03-31 | 9.23% |
| 2019-12-31 | -2.72% |
| 2019-09-30 | 9.77% |
| 2019-06-30 | 45.87% |
| 2019-03-31 | 20.01% |
| 2018-12-31 | -5.36% |
| 2018-09-30 | -35.30% |
| 2018-06-30 | 11.76% |
| 2018-03-31 | 22.88% |
| 2017-12-31 | 19.73% |
| 2017-09-30 | 12.13% |
| 2017-06-30 | 12.52% |
| 2017-03-31 | 25.99% |
| 2016-12-31 | 17.34% |
| 2016-09-30 | 13.20% |
| 2016-06-30 | 15.40% |
| 2016-03-31 | 26.55% |
| 2015-12-31 | 19.99% |
| 2015-09-30 | 13.42% |
| 2015-06-30 | 7.22% |
| 2015-03-31 | 17.97% |
| 2014-12-31 | 20.77% |
| 2014-09-30 | 6.33% |
| 2014-06-30 | 16.45% |
| 2014-03-31 | 23.00% |
| 2013-12-31 | 21.55% |
| 2013-09-30 | 16.38% |
| 2013-06-30 | 16.00% |
| 2013-03-31 | 23.90% |
| 2012-12-31 | 21.55% |
| 2012-09-30 | 13.51% |
| 2012-06-30 | 19.55% |
| 2012-03-31 | 23.98% |
| 2011-12-31 | 13.09% |
| 2011-09-30 | 13.79% |
| 2011-06-30 | 13.47% |
| 2011-03-31 | 18.21% |
| 2010-12-31 | 14.56% |
| 2010-09-30 | 10.83% |
| 2010-06-30 | 11.89% |
| 2010-03-31 | 17.11% |
| 2009-12-31 | 10.78% |
| 2009-09-30 | 10.58% |
| 2009-06-30 | 11.07% |
| 2009-03-31 | 12.81% |
| 2008-12-31 | 12.30% |
| 2008-09-30 | 7.49% |
| 2008-06-30 | 6.38% |
| 2008-03-31 | 12.00% |
| 2007-12-31 | 8.93% |
| 2007-09-30 | 8.61% |
| 2007-06-30 | 8.89% |
| 2007-03-31 | 14.82% |
| 2006-12-31 | 12.53% |
| 2006-09-30 | 11.73% |
| 2006-06-30 | 10.05% |
| 2006-03-31 | 12.37% |
| 2005-12-31 | 12.03% |
| 2005-09-30 | 7.95% |
| 2005-06-30 | 8.84% |
| 2005-03-31 | 16.32% |
| 2004-12-31 | 17.28% |
| 2004-09-30 | 13.07% |
| 2004-06-30 | 12.67% |
| 2004-03-31 | 17.93% |
| 2003-12-31 | 17.50% |
| 2003-09-30 | 16.58% |
| 2003-06-30 | 15.40% |
| 2003-03-31 | 18.35% |
| 2002-12-31 | 18.43% |
| 2002-09-30 | 16.71% |
| 2002-06-30 | 11.53% |
