NiSource Inc. (NI)
NYSE: NI · Real-Time Price · USD
46.22
-0.55 (-1.18%)
At close: May 29, 2026, 4:00 PM EDT
46.54
+0.32 (0.69%)
After-hours: May 29, 2026, 7:36 PM EDT
NiSource Market Cap
NiSource has a market cap or net worth of $22.16 billion as of May 29, 2026. Its market cap has increased by 24.28% in one year.
Market Cap
22.16B
Enterprise Value
38.89B
1-Year Change
24.28%
Ranking
Category
Stock Price
$46.22
Market Cap Chart
Since December 1, 1998, NiSource's market cap has increased from $3.49B to $22.16B, an increase of 535.08%. That is a compound annual growth rate of 6.95%.
Market Cap History
| Date | Market Cap | % Change |
|---|---|---|
| May 29, 2026 | 22.16B | 11.20% |
| Dec 31, 2025 | 19.93B | 16.14% |
| Dec 31, 2024 | 17.16B | 56.33% |
| Dec 29, 2023 | 10.98B | -1.44% |
| Dec 30, 2022 | 11.14B | 2.71% |
| Dec 31, 2021 | 10.84B | 23.34% |
| Dec 31, 2020 | 8.79B | -15.47% |
| Dec 31, 2019 | 10.40B | 12.92% |
| Dec 31, 2018 | 9.21B | 6.52% |
| Dec 29, 2017 | 8.65B | 20.99% |
| Dec 30, 2016 | 7.15B | 14.93% |
| Dec 31, 2015 | 6.22B | -53.57% |
| Dec 31, 2014 | 13.39B | 30.01% |
| Dec 31, 2013 | 10.30B | 33.61% |
| Dec 31, 2012 | 7.71B | 15.19% |
| Dec 30, 2011 | 6.69B | 36.49% |
| Dec 31, 2010 | 4.90B | 15.62% |
| Dec 31, 2009 | 4.24B | 40.97% |
| Dec 31, 2008 | 3.01B | -41.91% |
| Dec 31, 2007 | 5.18B | -21.28% |
| Dec 29, 2006 | 6.58B | 15.69% |
| Dec 30, 2005 | 5.69B | -5.29% |
| Dec 31, 2004 | 6.00B | 4.27% |
| Dec 31, 2003 | 5.76B | 38.58% |
| Dec 31, 2002 | 4.16B | -12.86% |
View and export this data all the way back to 1998. Sign Up Today.
Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
Full DefinitionRelated Stocks
| Company | Market Cap |
|---|---|
| Atmos Energy | 28.23B |
| UGI Corporation | 7.49B |
| Southwest Gas Holdings | 6.24B |
| New Jersey Resources | 5.58B |
| Black Hills | 5.54B |
| Brookfield Infrastructure | 5.11B |
| ONE Gas | 4.88B |
| Spire | 4.86B |