TTM
27.8%
YoY change
+0.95pp
Trough year (2018)
2.4%
Peak year (1985)
100.0%
Latest annual
27.6%
Operating Margin history chart for NiSource (NI) from 1985 to 2025
Latest: 27.6%
Operating Margin change chart for NiSource (NI) from 1985 to 2025
Latest: +0.95pp
Operating Margin history table for NiSource (NI) from 1985 to 2025
| 2025 | 27.6% | +0.95pp | ||
| 2024 | 26.7% | +3.15pp | ||
| 2023 | 23.5% | +1.90pp | ||
| 2022 | 21.6% | +1.08pp | ||
| 2021 | 20.6% | +8.79pp | ||
| 2020 | 11.8% | -5.33pp | ||
| 2019 | 17.1% | +14.66pp | ||
| 2018 | 2.4% | -16.46pp | ||
| 2017 | 18.9% | -0.38pp | ||
| 2016 | 19.3% | +2.08pp | ||
| 2015 | 17.2% | +5.00pp | ||
| 2014 | 12.2% | -0.14pp | ||
| 2013 | 12.3% | -8.21pp | ||
| 2012 | 20.6% | +5.36pp | ||
| 2011 | 15.2% | +1.31pp | ||
| 2010 | 13.9% | +1.84pp | ||
| 2009 | 12.0% | +1.69pp | ||
| 2008 | 10.4% | -0.56pp | ||
| 2007 | 10.9% | -1.47pp | ||
| 2006 | 12.4% | +1.70pp | ||
| 2005 | 10.7% | -5.38pp | ||
| 2004 | 16.1% | -1.50pp | ||
| 2003 | 17.6% | +0.24pp | ||
| 2002 | 17.3% | +6.66pp | ||
| 2001 | 10.7% | +1.25pp | ||
| 2000 | 9.4% | -4.51pp | ||
| 1999 | 13.9% | +0.19pp | ||
| 1998 | 13.7% | -1.95pp | ||
| 1997 | 15.7% | -5.26pp | ||
| 1996 | 20.9% | -0.98pp | ||
| 1995 | 21.9% | +0.75pp | ||
| 1994 | 21.2% | -78.83pp | ||
| 1993 | 100.0% | 0.00pp | ||
| 1992 | 100.0% | 0.00pp | ||
| 1991 | 100.0% | 0.00pp | ||
| 1990 | 100.0% | 0.00pp | ||
| 1989 | 100.0% | 0.00pp | ||
| 1988 | 100.0% | 0.00pp | ||
| 1987 | 100.0% | 0.00pp | ||
| 1986 | 100.0% | 0.00pp | ||
| 1985 | 100.0% | — |
- 202527.6%+0.95pp
- 202426.7%+3.15pp
- 202323.5%+1.90pp
- 202221.6%+1.08pp
- 202120.6%+8.79pp
- 202011.8%-5.33pp
- 201917.1%+14.66pp
- 20182.4%-16.46pp
- 201718.9%-0.38pp
- 201619.3%+2.08pp
- 201517.2%+5.00pp
- 201412.2%-0.14pp
- 201312.3%-8.21pp
- 201220.6%+5.36pp
- 201115.2%+1.31pp
- 201013.9%+1.84pp
- 200912.0%+1.69pp
- 200810.4%-0.56pp
- 200710.9%-1.47pp
- 200612.4%+1.70pp
- 200510.7%-5.38pp
- 200416.1%-1.50pp
- 200317.6%+0.24pp
- 200217.3%+6.66pp
- 200110.7%+1.25pp
- 20009.4%-4.51pp
- 199913.9%+0.19pp
- 199813.7%-1.95pp
- 199715.7%-5.26pp
- 199620.9%-0.98pp
- 199521.9%+0.75pp
- 199421.2%-78.83pp
- 1993100.0%0.00pp
- 1992100.0%0.00pp
- 1991100.0%0.00pp
- 1990100.0%0.00pp
- 1989100.0%0.00pp
- 1988100.0%0.00pp
- 1987100.0%0.00pp
- 1986100.0%0.00pp
- 1985100.0%—
Operating Margin values are taken from NiSource's reported income statements (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Operating Margin at NiSource (NI)
According to NiSource's latest reported financial statements, the company's latest reported operating margin is 27.8%. Operating margin is operating income divided by revenue — the share of each sales dollar left after cost of goods sold and operating expenses (SG&A, R&D), but before interest and taxes. It isolates how profitable the core business is before financing and tax decisions, so it is comparable across companies with different capital structures.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
As of the 2025 fiscal year, NiSource (NI) reported operating margin of 27.63% – expanded 0.9 percentage points year-over-year.
100.00% stands as the all-time-high annual operating margin, posted in 1985, against a low of 2.44% during 2018.
NiSource Operating Margin by Year
NiSource Operating Margin 2025: 27.6%
In 2025, NiSource reported operating margin of 27.63%, expanded 0.9 percentage points from 2024.
NiSource Operating Margin 2024: 26.7%
NiSource operating margin in 2024 was 26.68%, expanded 3.2 percentage points from 2023.
NiSource Operating Margin 2023: 23.5%
2023's operating margin for NiSource came in at 23.53%, expanded 1.9 percentage points from 2022.
NiSource Operating Margin 2022: 21.6%
NiSource posted operating margin of 21.64% in 2022, expanded 1.1 percentage points from 2021.
NiSource Operating Margin 2021: 20.6%
NiSource operating margin in 2021 was 20.55%.
See more financial history for NiSource (NI).
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