Alliant Energy Corporation
LNT | NASDAQ
$64.83
-$0.14 (-0.22%)
Sep 22, 2026, 9:30 AM ET · Market open
Market Cap History History
Annual Market Cap Change Annual Change
| Date | Market Cap | Change | % Change |
|---|---|---|---|
| Sep 20, 2026 | $16.79B | $28.07M | +0.17% |
| Dec 25, 2025 | $16.77B | $1.49B | +9.74% |
| Dec 26, 2024 | $15.28B | $2.27B | +17.48% |
| Dec 28, 2023 | $13B | -$853.16M | -6.16% |
| Dec 29, 2022 | $13.86B | -$1.53B | -9.97% |
| Dec 30, 2021 | $15.39B | $2.52B | +19.58% |
| Dec 30, 2020 | $12.87B | -$120.5M | -0.93% |
| Dec 26, 2019 | $12.99B | $3.1B | +31.37% |
| Dec 27, 2018 | $9.89B | $47.25M | +0.48% |
| Dec 28, 2017 | $9.84B | $1.23B | +14.34% |
| Dec 29, 2016 | $8.61B | $1.53B | +21.65% |
| Dec 30, 2015 | $7.08B | -$475.41M | -6.30% |
| Dec 25, 2014 | $7.55B | $1.83B | +32.04% |
| Dec 26, 2013 | $5.72B | $894.44M | +18.54% |
| Dec 27, 2012 | $4.83B | -$56.69M | -1.16% |
| Dec 29, 2011 | $4.88B | $819.69M | +20.18% |
| Dec 30, 2010 | $4.06B | $725.35M | +21.74% |
| Dec 30, 2009 | $3.34B | $245M | +7.92% |
| Dec 25, 2008 | $3.09B | -$1.47B | -32.16% |
| Dec 27, 2007 | $4.56B | $132.79M | +3.00% |
| Dec 28, 2006 | $4.42B | n/a | n/a |
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