Alliant Energy Corporation (LNT)
NASDAQ: LNT · Real-Time Price · USD
67.97
-0.03 (-0.04%)
At close: Sep 4, 2026, 4:00 PM EDT
68.14
+0.17 (0.25%)
After-hours: Sep 4, 2026, 7:41 PM EDT
Alliant Energy Market Cap
Alliant Energy has a market cap or net worth of $17.62 billion as of September 4, 2026. Its market cap has increased by 6.30% in one year.
Market Cap
17.62B
Enterprise Value
29.72B
1-Year Change
6.30%
Ranking
Category
Stock Price
$67.97
ChartMarket Cap Chart
Since December 1, 1998, Alliant Energy's market cap has increased from $2.34B to $17.62B, an increase of 653.63%. That is a compound annual growth rate of 7.54%.
| Date | Market Cap | % Change |
|---|---|---|
| Sep 4, 2026 | 17.62B | 5.46% |
| Dec 31, 2025 | 16.71B | 10.12% |
| Dec 31, 2024 | 15.18B | 15.92% |
| Dec 29, 2023 | 13.09B | -5.54% |
| Dec 30, 2022 | 13.86B | -9.95% |
| Dec 31, 2021 | 15.39B | 19.58% |
| Dec 31, 2020 | 12.87B | -2.14% |
| Dec 31, 2019 | 13.15B | 31.93% |
| Dec 31, 2018 | 9.97B | 1.18% |
| Dec 29, 2017 | 9.85B | 14.29% |
| Dec 30, 2016 | 8.62B | 21.76% |
| Dec 31, 2015 | 7.08B | -3.92% |
| Dec 31, 2014 | 7.37B | 28.71% |
| Dec 31, 2013 | 5.72B | 17.47% |
| Dec 31, 2012 | 4.87B | -0.45% |
| Dec 30, 2011 | 4.90B | 20.10% |
| Dec 31, 2010 | 4.08B | 21.75% |
| Dec 31, 2009 | 3.35B | 3.88% |
| Dec 31, 2008 | 3.22B | -28.20% |
| Dec 31, 2007 | 4.49B | 2.37% |
| Dec 29, 2006 | 4.38B | 33.80% |
| Dec 30, 2005 | 3.28B | -0.82% |
| Dec 31, 2004 | 3.30B | 19.86% |
| Dec 31, 2003 | 2.76B | 81.67% |
| Dec 31, 2002 | 1.52B | -37.15% |
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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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