NiSource Inc
NI | NYSE
$40.52
-$0.06 (-0.15%)
At close: Sep 21, 2026, 3:59 PM ET
$40.55
+$0.03 (+0.07%)
After-hours:
Sep 21, 2026, 7:30 PM ET
Market Cap History History
Annual Market Cap Change Annual Change
| Date | Market Cap | Change | % Change |
|---|---|---|---|
| Sep 17, 2026 | $19.47B | -$229.79M | -1.17% |
| Dec 25, 2025 | $19.7B | $3.08B | +18.57% |
| Dec 26, 2024 | $16.61B | $5.63B | +51.31% |
| Dec 28, 2023 | $10.98B | -$167.81M | -1.51% |
| Dec 29, 2022 | $11.15B | $289.98M | +2.67% |
| Dec 30, 2021 | $10.86B | $2.05B | +23.31% |
| Dec 30, 2020 | $8.8B | -$1.02B | -10.38% |
| Dec 26, 2019 | $9.82B | $568.45M | +6.14% |
| Dec 27, 2018 | $9.26B | $756.61M | +8.90% |
| Dec 28, 2017 | $8.5B | $1.36B | +19.11% |
| Dec 29, 2016 | $7.14B | $915.93M | +14.73% |
| Dec 30, 2015 | $6.22B | $757.06M | +13.86% |
| Dec 25, 2014 | $5.46B | $1.45B | +36.12% |
| Dec 26, 2013 | $4.01B | $1.2B | +42.81% |
| Dec 27, 2012 | $2.81B | $181.82M | +6.92% |
| Dec 29, 2011 | $2.63B | $699.68M | +36.28% |
| Dec 30, 2010 | $1.93B | $261.56M | +15.69% |
| Dec 30, 2009 | $1.67B | $516.24M | +44.86% |
| Dec 25, 2008 | $1.15B | -$878.8M | -43.30% |
| Dec 27, 2007 | $2.03B | -$550.98M | -21.35% |
| Dec 28, 2006 | $2.58B | n/a | n/a |
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