NiSource Inc. (NI)
NYSE: NI · Real-Time Price · USD
40.44
-0.10 (-0.26%)
Oct 8, 2026, 2:48 PM EDT - Market open
NiSource Market Cap
NiSource has a market cap or net worth of $19.39 billion as of October 8, 2026. It is the 1,231st most valuable company in the world and the 487th biggest in the United States. Its market cap has decreased by 5.52% in one year.
Market Cap
19.39B
Enterprise Value
36.76B
1-Year Change
-5.52%
Global Rank
Country Rank
#487 United States
Category
ChartMarket Cap Chart
Since December 1, 1998, NiSource's market cap has increased from $3.49B to $19.39B, an increase of 455.73%. That is a compound annual growth rate of 6.35%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 8, 2026 | 19.39B | -2.69% |
| 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% |
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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
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