Current
$22.70B
5-Year Average
$14.61B
All-Time High
$23.01B
All-Time Low
$847.28M
Market cap daily chart for NiSource (NI)
Jun 16, 2021 – Jun 12, 2026 · 1,254 trading days
Market Cap growth chart for NiSource (NI) from 1985 to 2026
Latest: +14.6%
Market Cap history table for NiSource (NI) from 1985 to 2026
| 2026 | $22.70B | +14.6% | +$2.89B | ||
| 2025 | $19.82B | +18.2% | +$3.05B | ||
| 2024 | $16.76B | +41.0% | +$4.87B | ||
| 2023 | $11.89B | -2.0% | −$247.09M | ||
| 2022 | $12.14B | +5.4% | +$617.18M | ||
| 2021 | $11.52B | +30.7% | +$2.70B | ||
| 2020 | $8.82B | -15.8% | −$1.65B | ||
| 2019 | $10.47B | +15.8% | +$1.43B | ||
| 2018 | $9.04B | +6.4% | +$545.64M | ||
| 2017 | $8.49B | +18.6% | +$1.33B | ||
| 2016 | $7.16B | +14.8% | +$922.99M | ||
| 2015 | $6.24B | +18.2% | +$961.58M | ||
| 2014 | $5.28B | +30.3% | +$1.23B | ||
| 2013 | $4.05B | +37.9% | +$1.11B | ||
| 2012 | $2.94B | +8.8% | +$237.55M | ||
| 2011 | $2.70B | +39.3% | +$762.07M | ||
| 2010 | $1.94B | +16.4% | +$272.46M | ||
| 2009 | $1.67B | +40.3% | +$478.86M | ||
| 2008 | $1.19B | -41.8% | −$851.30M | ||
| 2007 | $2.04B | -21.3% | −$550.82M | ||
| 2006 | $2.59B | +15.7% | +$350.50M | ||
| 2005 | $2.24B | -5.8% | −$137.63M | ||
| 2004 | $2.38B | +6.8% | +$150.70M | ||
| 2003 | $2.23B | +33.0% | +$552.47M | ||
| 2002 | $1.67B | -12.0% | −$228.66M | ||
| 2001 | $1.90B | +29.4% | +$432.17M | ||
| 2000 | $1.47B | +65.7% | +$582.93M | ||
| 1999 | $886.62M | -39.2% | −$571.90M | ||
| 1998 | $1.46B | +20.4% | +$247.62M | ||
| 1997 | $1.21B | +25.9% | +$248.86M | ||
| 1996 | $962.04M | +0.2% | +$1.71M | ||
| 1995 | $960.33M | +25.5% | +$195.08M | ||
| 1994 | $765.26M | -11.0% | −$94.20M | ||
| 1993 | $859.46M | +22.3% | +$156.90M | ||
| 1992 | $702.56M | +2.3% | +$15.77M | ||
| 1991 | $686.79M | +46.4% | +$217.83M | ||
| 1990 | $468.96M | -15.6% | −$86.40M | ||
| 1989 | $555.36M | +37.6% | +$151.71M | ||
| 1988 | $403.65M | +67.8% | +$163.05M | ||
| 1987 | $240.60M | -26.9% | −$88.37M | ||
| 1986 | $328.98M | +19.4% | +$53.50M | ||
| 1985 | $275.48M | — | — |
- 2026$22.70B+14.6%
- 2025$19.82B+18.2%
- 2024$16.76B+41.0%
- 2023$11.89B-2.0%
- 2022$12.14B+5.4%
- 2021$11.52B+30.7%
- 2020$8.82B-15.8%
- 2019$10.47B+15.8%
- 2018$9.04B+6.4%
- 2017$8.49B+18.6%
- 2016$7.16B+14.8%
- 2015$6.24B+18.2%
- 2014$5.28B+30.3%
- 2013$4.05B+37.9%
- 2012$2.94B+8.8%
- 2011$2.70B+39.3%
- 2010$1.94B+16.4%
- 2009$1.67B+40.3%
- 2008$1.19B-41.8%
- 2007$2.04B-21.3%
- 2006$2.59B+15.7%
- 2005$2.24B-5.8%
- 2004$2.38B+6.8%
- 2003$2.23B+33.0%
- 2002$1.67B-12.0%
- 2001$1.90B+29.4%
- 2000$1.47B+65.7%
- 1999$886.62M-39.2%
- 1998$1.46B+20.4%
- 1997$1.21B+25.9%
- 1996$962.04M+0.2%
- 1995$960.33M+25.5%
- 1994$765.26M-11.0%
- 1993$859.46M+22.3%
- 1992$702.56M+2.3%
- 1991$686.79M+46.4%
- 1990$468.96M-15.6%
- 1989$555.36M+37.6%
- 1988$403.65M+67.8%
- 1987$240.60M-26.9%
- 1986$328.98M+19.4%
- 1985$275.48M—
Market Cap values are taken from NiSource's reported income statements (share counts) and end-of-day prices (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 Market Cap at NiSource (NI)
According to NiSource's latest reported financial statements, the company's latest reported market cap is $22.44B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
The 2026 reading of NiSource (NI) market cap is $22.70B – grew 14.6% year-over-year.
Over 2021–2026 (5 years), NiSource market cap expanded at a +14.5% compound annual rate, sustaining 3 straight years of year-over-year growth.
2026 marks the peak market cap at $22.70B, with the historical low of $240.60M recorded in 1987.
NiSource Market Cap by Year
NiSource Market Cap 2026: $22.70B
In 2026, NiSource reported market cap of $22.70B, grew 14.6% from 2025. This figure represents the highest annual value in the available history.
NiSource Market Cap 2025: $19.82B
NiSource market cap in 2025 was $19.82B, grew 18.2% from 2024.
NiSource Market Cap 2024: $16.76B
2024's market cap for NiSource came in at $16.76B, surged 41.0% from 2023.
NiSource Market Cap 2023: $11.89B
NiSource posted market cap of $11.89B in 2023, edged down 2.0% below 2022.
NiSource Market Cap 2022: $12.14B
NiSource market cap in 2022 was $12.14B.
See more financial history for NiSource (NI).
Sector peers by Market Cap
Utilities peers of NiSource (NI), ranked by their latest market cap
| $252.77B | |
| $179.32B | |
| $105.97B | |
| $97.43B | |
| $91.66B | |
| $70.36B | |
| $60.33B | |
| $59.73B |
- $252.77B
- $179.32B
- $105.97B
- $97.43B
- $91.66B
- $60.33B
- $59.73B
Frequently asked questions
NiSource (NI) Key Financials
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