Alliant Energy (LNT) Market Cap 1985–2026

As of October 29, 2026, Alliant Energy had a market cap of $18.3 billion, which increased by 1.89% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Oct 29, 2026, 4:00 PM ET

Alliant Energy Corp. (LNT)

🌍 United States 📈 NASDAQ 🏭 Utilities 🏢 Electric Utilities

Latest Market Cap

$18.3B ▲ 1.89%

Start of 2026

$16.71B ▲ 9.52%

1 Year Ago

$17.46B ▲ 4.81%

All-Time High

$20.13B ▼ 9.09%

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Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 Alliant Energy Market Cap History by Year and Month

Alliant Energy Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$18.3B	▲ 9.52%
October 29, 2026	$18.3B	▲ 11.65%
September 30, 2026	$16.39B	▼ 6.88%
August 31, 2026	$17.6B	▼ 4.09%
July 31, 2026	$18.35B	▼ 6.76%
June 30, 2026	$19.68B	▲ 6.38%
May 29, 2026	$18.5B	▼ 2.01%
April 30, 2026	$18.88B	▲ 2.33%
March 31, 2026	$18.45B	▼ 0.81%
February 27, 2026	$18.6B	▲ 9.80%
January 30, 2026	$16.94B	▲ 1.38%
2025	$16.71B	▲ 10.07%
December 31, 2025	$16.71B	▼ 6.44%
November 28, 2025	$17.86B	▲ 3.96%
October 31, 2025	$17.18B	▼ 0.87%
September 30, 2025	$17.33B	▲ 3.65%
August 29, 2025	$16.72B	▲ 0.12%
July 31, 2025	$16.7B	▲ 7.53%
June 30, 2025	$15.53B	▼ 2.88%
May 30, 2025	$15.99B	▲ 1.98%
April 30, 2025	$15.68B	▼ 5.14%
March 31, 2025	$16.53B	▼ 0.18%
February 28, 2025	$16.56B	▲ 9.60%
January 31, 2025	$15.11B	▼ 0.47%
2024	$15.181B	▲ 15.97%
December 31, 2024	$15.181B	▼ 6.39%
November 29, 2024	$16.217B	▲ 5.33%
October 31, 2024	$15.396B	▼ 1.14%
September 30, 2024	$15.573B	▲ 4.20%
August 30, 2024	$14.946B	▲ 4.69%
July 31, 2024	$14.277B	▲ 9.40%
June 28, 2024	$13.05B	▼ 1.14%
May 31, 2024	$13.201B	▲ 3.39%
April 30, 2024	$12.768B	▼ 1.19%
March 28, 2024	$12.922B	▲ 5.67%
February 29, 2024	$12.229B	▼ 1.87%
January 31, 2024	$12.462B	▼ 4.80%
2023	$13.091B	▼ 5.54%
December 29, 2023	$13.091B	▲ 1.45%
November 30, 2023	$12.904B	▲ 3.65%
October 31, 2023	$12.45B	▲ 1.68%
September 29, 2023	$12.244B	▼ 3.43%
August 31, 2023	$12.679B	▼ 6.64%
July 31, 2023	$13.581B	▲ 2.40%
June 30, 2023	$13.263B	▲ 2.52%
May 31, 2023	$12.937B	▼ 6.67%
April 28, 2023	$13.862B	▲ 3.26%
March 31, 2023	$13.424B	▲ 4.26%
February 28, 2023	$12.876B	▼ 5.11%
January 31, 2023	$13.569B	▼ 2.09%
2022	$13.859B	▼ 9.98%
December 30, 2022	$13.859B	▼ 1.93%
November 30, 2022	$14.132B	▲ 7.91%
October 31, 2022	$13.096B	▼ 1.55%
September 30, 2022	$13.302B	▼ 13.16%
August 31, 2022	$15.317B	▲ 0.18%
July 29, 2022	$15.289B	▲ 3.96%
June 30, 2022	$14.707B	▼ 8.12%
May 31, 2022	$16.007B	▲ 8.52%
April 29, 2022	$14.75B	▼ 5.88%
March 31, 2022	$15.671B	▲ 7.13%
February 28, 2022	$14.628B	▼ 2.44%
January 31, 2022	$14.994B	▼ 2.61%
2021	$15.396B	▲ 19.57%
December 31, 2021	$15.396B	▲ 12.24%
November 30, 2021	$13.717B	▼ 3.15%
October 29, 2021	$14.163B	▲ 1.06%
September 30, 2021	$14.015B	▼ 7.87%
August 31, 2021	$15.213B	▲ 3.86%
July 30, 2021	$14.648B	▲ 4.97%
June 30, 2021	$13.954B	▼ 2.39%
May 28, 2021	$14.295B	▲ 1.74%
April 30, 2021	$14.05B	▲ 3.71%
March 31, 2021	$13.547B	▲ 17.45%
February 26, 2021	$11.534B	▼ 5.12%
January 29, 2021	$12.156B	▼ 5.59%
2020	$12.876B	▼ 3.96%
December 31, 2020	$12.876B	▼ 1.99%
November 30, 2020	$13.137B	▼ 4.85%
October 30, 2020	$13.807B	▲ 7.03%
September 30, 2020	$12.9B	▼ 4.57%
August 31, 2020	$13.518B	▲ 0.56%
July 31, 2020	$13.443B	▲ 12.56%
June 30, 2020	$11.943B	▼ 3.02%
May 29, 2020	$12.315B	▲ 1.67%
April 30, 2020	$12.113B	▲ 0.54%
March 31, 2020	$12.048B	▼ 5.66%
February 28, 2020	$12.771B	▼ 12.20%
January 31, 2020	$14.545B	▲ 8.49%
2019	$13.407B	▲ 34.42%
December 31, 2019	$13.407B	▲ 5.24%
November 29, 2019	$12.739B	▼ 0.63%
October 31, 2019	$12.82B	▼ 1.10%
September 30, 2019	$12.962B	▲ 4.05%
August 30, 2019	$12.458B	▲ 5.87%
July 31, 2019	$11.767B	▲ 1.00%
June 28, 2019	$11.651B	▲ 3.41%
May 31, 2019	$11.267B	▲ 0.49%
April 30, 2019	$11.212B	▲ 0.21%
March 29, 2019	$11.188B	▲ 3.32%
February 28, 2019	$10.829B	▲ 3.15%
January 31, 2019	$10.498B	▲ 5.25%
2018	$9.974B	▲ 1.25%
December 31, 2018	$9.974B	▼ 6.86%
November 30, 2018	$10.709B	▲ 5.60%
October 31, 2018	$10.141B	▲ 1.90%
September 28, 2018	$9.952B	▼ 0.63%
August 31, 2018	$10.015B	▼ 0.30%
July 31, 2018	$10.045B	▲ 2.54%
June 29, 2018	$9.796B	▲ 2.17%
May 31, 2018	$9.588B	▼ 3.56%
April 30, 2018	$9.942B	▲ 5.12%
March 29, 2018	$9.458B	▲ 5.77%
February 28, 2018	$8.942B	▼ 2.77%
January 31, 2018	$9.197B	▼ 6.64%
2017	$9.851B	▲ 14.28%
December 29, 2017	$9.851B	▼ 5.54%
November 30, 2017	$10.429B	▲ 4.27%
October 31, 2017	$10.002B	▲ 4.13%
September 29, 2017	$9.605B	▼ 2.74%
August 31, 2017	$9.876B	▲ 5.46%
July 31, 2017	$9.365B	▲ 0.89%
June 30, 2017	$9.282B	▼ 1.76%
May 31, 2017	$9.448B	▲ 5.47%
April 28, 2017	$8.958B	▼ 0.73%
March 31, 2017	$9.024B	▲ 0.39%
February 28, 2017	$8.989B	▲ 4.85%
January 31, 2017	$8.573B	▼ 0.55%
2016	$8.62B	▲ 21.65%
December 30, 2016	$8.62B	▲ 5.48%
November 30, 2016	$8.172B	▼ 5.59%
October 31, 2016	$8.656B	▼ 0.69%
September 30, 2016	$8.716B	▲ 1.03%
August 31, 2016	$8.627B	▼ 5.72%
July 29, 2016	$9.15B	▲ 1.39%
June 30, 2016	$9.025B	▲ 7.25%
May 31, 2016	$8.415B	▲ 5.07%
April 29, 2016	$8.009B	▼ 5.06%
March 31, 2016	$8.436B	▲ 9.42%
February 29, 2016	$7.71B	▲ 3.99%
January 29, 2016	$7.414B	▲ 4.63%
2015	$7.086B	▼ 3.83%
December 31, 2015	$7.086B	▲ 3.85%
November 30, 2015	$6.823B	▲ 1.97%
October 30, 2015	$6.691B	▲ 0.92%
September 30, 2015	$6.63B	▲ 3.29%
August 31, 2015	$6.419B	▼ 7.87%
July 31, 2015	$6.967B	▲ 6.56%
June 30, 2015	$6.538B	▼ 5.59%
May 29, 2015	$6.925B	▲ 1.36%
April 30, 2015	$6.832B	▼ 4.00%
March 31, 2015	$7.117B	▲ 0.88%
February 27, 2015	$7.055B	▼ 7.31%
January 30, 2015	$7.611B	▲ 3.30%
2014	$7.368B	▲ 28.70%
December 31, 2014	$7.368B	▲ 5.65%
November 28, 2014	$6.974B	▲ 1.54%
October 31, 2014	$6.868B	▲ 11.73%
September 30, 2014	$6.147B	▼ 5.27%
August 29, 2014	$6.489B	▲ 3.53%
July 31, 2014	$6.268B	▼ 7.17%
June 30, 2014	$6.752B	▲ 4.39%
May 30, 2014	$6.468B	▼ 0.29%
April 30, 2014	$6.487B	▲ 2.94%
March 31, 2014	$6.302B	▲ 4.72%
February 28, 2014	$6.018B	▲ 4.39%
January 31, 2014	$5.765B	▲ 0.70%
2013	$5.725B	▲ 17.48%
December 31, 2013	$5.725B	▲ 0.19%
November 29, 2013	$5.714B	▼ 1.38%
October 31, 2013	$5.794B	▲ 5.40%
September 30, 2013	$5.497B	▼ 0.13%
August 30, 2013	$5.504B	▼ 6.35%
July 31, 2013	$5.877B	▲ 5.08%
June 28, 2013	$5.593B	▲ 2.36%
May 31, 2013	$5.464B	▼ 7.94%
April 30, 2013	$5.935B	▲ 6.63%
March 28, 2013	$5.566B	▲ 5.22%
February 28, 2013	$5.29B	▲ 3.97%
January 31, 2013	$5.088B	▲ 4.41%
2012	$4.873B	▼ 0.45%
December 31, 2012	$4.873B	▼ 2.03%
November 30, 2012	$4.974B	▲ 0.26%
October 31, 2012	$4.961B	▲ 3.03%
September 28, 2012	$4.815B	▼ 1.57%
August 31, 2012	$4.892B	▼ 5.63%
July 31, 2012	$5.184B	▲ 2.53%
June 29, 2012	$5.056B	▲ 4.29%
May 31, 2012	$4.848B	▼ 3.43%
April 30, 2012	$5.02B	▲ 4.43%
March 30, 2012	$4.807B	▲ 1.61%
February 29, 2012	$4.731B	▲ 0.53%
January 31, 2012	$4.706B	▼ 3.86%
2011	$4.895B	▲ 20.03%
December 30, 2011	$4.895B	▲ 4.50%
November 30, 2011	$4.684B	▲ 3.49%
October 31, 2011	$4.526B	▲ 5.43%
September 30, 2011	$4.293B	▼ 4.64%
August 31, 2011	$4.502B	▲ 2.93%
July 29, 2011	$4.374B	▼ 3.06%
June 30, 2011	$4.512B	▼ 1.12%
May 31, 2011	$4.563B	▲ 4.01%
April 29, 2011	$4.387B	▲ 1.57%
March 31, 2011	$4.319B	▼ 1.14%
February 28, 2011	$4.369B	▲ 6.04%
January 31, 2011	$4.12B	▲ 1.03%
2010	$4.078B	▲ 21.80%
December 31, 2010	$4.078B	▲ 1.32%
November 30, 2010	$4.025B	▼ 0.62%
October 29, 2010	$4.05B	▲ 0.50%
September 30, 2010	$4.03B	▲ 3.87%
August 31, 2010	$3.88B	▲ 1.33%
July 30, 2010	$3.829B	▲ 8.87%
June 30, 2010	$3.517B	▼ 1.21%
May 28, 2010	$3.56B	▼ 6.02%
April 30, 2010	$3.788B	▲ 2.82%
March 31, 2010	$3.684B	▲ 5.17%
February 26, 2010	$3.503B	▲ 1.45%
January 29, 2010	$3.453B	▲ 3.14%
2009	$3.348B	▲ 3.88%
December 31, 2009	$3.348B	▲ 10.13%
November 30, 2009	$3.04B	▲ 3.47%
October 30, 2009	$2.938B	▼ 4.64%
September 30, 2009	$3.081B	▲ 5.73%
August 31, 2009	$2.914B	▲ 0.69%
July 31, 2009	$2.894B	▲ 0.10%
June 30, 2009	$2.891B	▲ 10.13%
May 29, 2009	$2.625B	▲ 6.10%
April 30, 2009	$2.474B	▼ 9.28%
March 31, 2009	$2.727B	▲ 6.73%
February 27, 2009	$2.555B	▼ 19.76%
January 30, 2009	$3.184B	▼ 1.21%
2008	$3.223B	▼ 28.23%
December 31, 2008	$3.223B	▼ 8.44%
November 28, 2008	$3.52B	▲ 8.47%
October 31, 2008	$3.245B	▼ 8.80%
September 30, 2008	$3.558B	▼ 7.82%
August 29, 2008	$3.86B	▲ 8.43%
July 31, 2008	$3.56B	▼ 5.92%
June 30, 2008	$3.784B	▼ 8.73%
May 30, 2008	$4.146B	▼ 0.34%
April 30, 2008	$4.16B	▲ 7.60%
March 31, 2008	$3.866B	▲ 0.76%
February 29, 2008	$3.837B	▼ 5.86%
January 31, 2008	$4.076B	▼ 9.24%
2007	$4.491B	▲ 2.42%
December 31, 2007	$4.491B	▼ 21.00%
November 30, 2007	$5.685B	▲ 3.80%
October 31, 2007	$5.477B	▲ 3.16%
September 28, 2007	$5.309B	▲ 1.16%
August 31, 2007	$5.248B	▲ 2.52%
July 31, 2007	$5.119B	▼ 6.13%
June 29, 2007	$5.453B	▼ 10.06%
May 31, 2007	$6.063B	▼ 1.37%
April 30, 2007	$6.147B	▲ 18.01%
March 30, 2007	$5.209B	▲ 7.16%
February 28, 2007	$4.861B	▲ 15.05%
January 31, 2007	$4.225B	▼ 3.65%
2006	$4.385B	▲ 33.81%
December 29, 2006	$4.385B	▼ 2.90%
November 30, 2006	$4.516B	▲ 1.44%
October 31, 2006	$4.452B	▲ 5.80%
September 29, 2006	$4.208B	▼ 2.34%
August 31, 2006	$4.309B	▲ 1.13%
July 31, 2006	$4.261B	▲ 5.50%
June 30, 2006	$4.039B	▼ 0.10%
May 31, 2006	$4.043B	▲ 7.61%
April 28, 2006	$3.757B	▲ 1.57%
March 31, 2006	$3.699B	▼ 4.93%
February 28, 2006	$3.891B	▲ 11.94%
January 31, 2006	$3.476B	▲ 6.07%
2005	$3.277B	▼ 1.00%
December 30, 2005	$3.277B	▼ 1.09%
November 30, 2005	$3.313B	▲ 7.18%
October 31, 2005	$3.091B	▼ 9.20%
September 30, 2005	$3.404B	▼ 2.74%
August 31, 2005	$3.5B	▲ 3.28%
July 29, 2005	$3.389B	▲ 3.45%
June 30, 2005	$3.276B	▲ 2.12%
May 31, 2005	$3.208B	▲ 4.80%
April 29, 2005	$3.061B	▼ 1.64%
March 31, 2005	$3.112B	▲ 0.13%
February 28, 2005	$3.108B	▼ 2.36%
January 31, 2005	$3.183B	▼ 3.84%
2004	$3.31B	▲ 19.80%
December 31, 2004	$3.31B	▲ 5.01%
November 30, 2004	$3.152B	▲ 3.41%
October 29, 2004	$3.048B	▲ 6.05%
September 30, 2004	$2.874B	▼ 2.34%
August 31, 2004	$2.943B	▲ 0.38%
July 30, 2004	$2.932B	▼ 0.68%
June 30, 2004	$2.952B	▲ 6.15%
May 28, 2004	$2.781B	▲ 0.47%
April 30, 2004	$2.768B	▼ 4.58%
March 31, 2004	$2.901B	▲ 1.26%
February 27, 2004	$2.865B	▼ 0.28%
January 30, 2004	$2.873B	▲ 3.98%
2003	$2.763B	▲ 80.82%
December 31, 2003	$2.763B	▲ 2.07%
November 28, 2003	$2.707B	▲ 1.61%
October 31, 2003	$2.664B	▲ 9.40%
September 30, 2003	$2.435B	▲ 5.37%
August 29, 2003	$2.311B	▲ 3.08%
July 31, 2003	$2.242B	▲ 26.60%
June 30, 2003	$1.771B	▼ 4.48%
May 30, 2003	$1.854B	▲ 13.81%
April 30, 2003	$1.629B	▲ 9.33%
March 31, 2003	$1.49B	▲ 2.05%
February 28, 2003	$1.46B	▼ 2.28%
January 31, 2003	$1.494B	▼ 2.23%
2002	$1.528B	▼ 43.89%
December 31, 2002	$1.528B	▲ 2.34%
November 29, 2002	$1.493B	▲ 1.63%
October 31, 2002	$1.469B	▼ 16.68%
September 30, 2002	$1.763B	▼ 7.01%
August 30, 2002	$1.896B	▲ 8.97%
July 31, 2002	$1.74B	▼ 25.00%
June 28, 2002	$2.32B	▼ 6.64%
May 31, 2002	$2.485B	▼ 2.59%
April 30, 2002	$2.551B	▼ 5.97%
March 28, 2002	$2.713B	▲ 4.15%
February 28, 2002	$2.605B	▼ 2.65%
January 31, 2002	$2.676B	▼ 1.73%
2001	$2.723B	▲ 8.14%
December 31, 2001	$2.723B	▲ 21.83%
November 30, 2001	$2.235B	▼ 4.41%
October 31, 2001	$2.338B	▼ 5.50%
September 28, 2001	$2.474B	▲ 3.00%
August 31, 2001	$2.402B	▲ 6.38%
July 31, 2001	$2.258B	▼ 2.00%
June 29, 2001	$2.304B	▼ 5.22%
May 31, 2001	$2.431B	▼ 1.46%
April 30, 2001	$2.467B	▼ 1.87%
March 30, 2001	$2.514B	▼ 3.57%
February 28, 2001	$2.607B	▲ 8.17%
January 31, 2001	$2.41B	▼ 4.29%
2000	$2.518B	▲ 15.93%
December 29, 2000	$2.518B	— 0.00%
November 30, 2000	$2.518B	▲ 5.14%
October 31, 2000	$2.395B	▲ 3.19%
September 29, 2000	$2.321B	▲ 0.43%
August 31, 2000	$2.311B	▲ 11.16%
July 31, 2000	$2.079B	▲ 1.22%
June 30, 2000	$2.054B	▼ 6.08%
May 31, 2000	$2.187B	▼ 7.72%
April 28, 2000	$2.37B	▼ 1.46%
March 31, 2000	$2.405B	▲ 8.24%
February 29, 2000	$2.222B	▼ 5.65%
January 31, 2000	$2.355B	▲ 8.43%
1999	$2.172B	▼ 13.26%
December 31, 1999	$2.172B	▲ 1.97%
November 30, 1999	$2.13B	▼ 0.47%
October 29, 1999	$2.14B	▼ 1.79%
September 30, 1999	$2.179B	▼ 3.97%
August 31, 1999	$2.269B	▲ 0.18%
July 30, 1999	$2.265B	▲ 1.80%
June 30, 1999	$2.225B	▼ 5.44%
May 28, 1999	$2.353B	▲ 4.35%
April 30, 1999	$2.255B	▲ 8.67%
March 31, 1999	$2.075B	▼ 3.08%
February 26, 1999	$2.141B	▼ 4.67%
January 29, 1999	$2.246B	▼ 10.30%
1998	$2.504B	▲ 145.49%
December 31, 1998	$2.504B	▲ 6.87%
November 30, 1998	$2.343B	▼ 1.80%
October 30, 1998	$2.386B	▼ 3.52%
September 30, 1998	$2.473B	▲ 7.01%
August 31, 1998	$2.311B	▲ 2.57%
July 31, 1998	$2.253B	▼ 9.81%
June 30, 1998	$2.498B	▲ 169.76%
May 29, 1998	$0.926B	▼ 4.73%
April 30, 1998	$0.972B	▼ 6.27%
March 31, 1998	$1.037B	▲ 5.71%
February 27, 1998	$0.981B	▼ 0.61%
January 30, 1998	$0.987B	▼ 3.24%
1997	$1.02B	▲ 17.78%
December 31, 1997	$1.02B	▲ 8.63%
November 28, 1997	$0.939B	▲ 4.45%
October 31, 1997	$0.899B	▲ 2.04%
September 30, 1997	$0.881B	▲ 3.40%
August 29, 1997	$0.852B	▲ 0.12%
July 31, 1997	$0.851B	▼ 1.05%
June 30, 1997	$0.86B	▲ 1.18%
May 30, 1997	$0.85B	▲ 1.80%
April 30, 1997	$0.835B	▼ 0.83%
March 31, 1997	$0.842B	▼ 1.41%
February 28, 1997	$0.854B	▼ 1.39%
January 31, 1997	$0.866B	— 0.00%
1996	$0.866B	▼ 8.07%
December 31, 1996	$0.866B	— 0.00%
November 29, 1996	$0.866B	— 0.00%
October 31, 1996	$0.866B	▼ 3.46%
September 30, 1996	$0.897B	▼ 4.47%
August 30, 1996	$0.939B	▼ 3.20%
July 31, 1996	$0.97B	▼ 4.15%
June 28, 1996	$1.012B	▲ 8.70%
May 31, 1996	$0.931B	▲ 1.64%
April 30, 1996	$0.916B	▼ 3.58%
March 29, 1996	$0.95B	▼ 0.42%
February 29, 1996	$0.954B	▼ 1.55%
January 31, 1996	$0.969B	▲ 2.87%
1995	$0.942B	▲ 11.88%
December 29, 1995	$0.942B	▼ 1.26%
November 30, 1995	$0.954B	▲ 1.60%
October 31, 1995	$0.939B	▲ 4.33%
September 29, 1995	$0.9B	▲ 2.62%
August 31, 1995	$0.877B	▲ 0.92%
July 31, 1995	$0.869B	▼ 1.36%
June 30, 1995	$0.881B	▼ 1.23%
May 31, 1995	$0.892B	▲ 2.18%
April 28, 1995	$0.873B	▼ 1.36%
March 31, 1995	$0.885B	▼ 4.53%
February 28, 1995	$0.927B	▲ 3.00%
January 31, 1995	$0.9B	▲ 6.89%
1994	$0.842B	▼ 15.88%
December 30, 1994	$0.842B	▼ 0.94%
November 30, 1994	$0.85B	▼ 2.19%
October 31, 1994	$0.869B	▲ 0.46%
September 30, 1994	$0.865B	▼ 5.77%
August 31, 1994	$0.918B	▲ 5.76%
July 29, 1994	$0.868B	▲ 3.58%
June 30, 1994	$0.838B	▼ 0.71%
May 31, 1994	$0.844B	▼ 9.15%
April 29, 1994	$0.929B	▲ 2.54%
March 31, 1994	$0.906B	▲ 2.60%
February 28, 1994	$0.883B	▼ 6.46%
January 31, 1994	$0.944B	▼ 5.69%
1993	$1.001B	▲ 8.22%
December 31, 1993	$1.001B	▲ 4.82%
November 30, 1993	$0.955B	▼ 9.99%
October 29, 1993	$1.061B	▼ 1.76%
September 30, 1993	$1.08B	▲ 0.84%
August 31, 1993	$1.071B	▲ 1.71%
July 30, 1993	$1.053B	— 0.00%
June 30, 1993	$1.053B	▲ 10.03%
May 28, 1993	$0.957B	▼ 2.15%
April 30, 1993	$0.978B	▼ 4.12%
March 31, 1993	$1.02B	▲ 7.14%
February 26, 1993	$0.952B	▲ 4.50%
January 29, 1993	$0.911B	▼ 1.51%
1992	$0.925B	▲ 5.47%
December 31, 1992	$0.925B	▲ 6.44%
November 30, 1992	$0.869B	▼ 5.54%
October 30, 1992	$0.92B	▼ 4.96%
September 30, 1992	$0.968B	▲ 4.09%
August 31, 1992	$0.93B	▼ 3.83%
July 31, 1992	$0.967B	▲ 5.91%
June 30, 1992	$0.913B	▼ 0.54%
May 29, 1992	$0.918B	▲ 4.20%
April 30, 1992	$0.881B	▲ 5.13%
March 31, 1992	$0.838B	▼ 0.24%
February 28, 1992	$0.84B	▲ 4.09%
January 31, 1992	$0.807B	▼ 7.98%
1991	$0.877B	▲ 34.30%
December 31, 1991	$0.877B	▲ 9.22%
November 29, 1991	$0.803B	▲ 3.48%
October 31, 1991	$0.776B	▼ 3.36%
September 30, 1991	$0.803B	▲ 6.64%
August 30, 1991	$0.753B	▲ 6.21%
July 31, 1991	$0.709B	▲ 3.20%
June 28, 1991	$0.687B	▼ 2.83%
May 31, 1991	$0.707B	▲ 2.91%
April 30, 1991	$0.687B	▼ 1.86%
March 28, 1991	$0.7B	▲ 2.49%
February 28, 1991	$0.683B	▲ 6.72%
January 31, 1991	$0.64B	▼ 1.99%
1990	$0.653B	▲ 0.46%
December 31, 1990	$0.653B	▲ 0.93%
November 30, 1990	$0.647B	▲ 5.55%
October 31, 1990	$0.613B	▲ 10.85%
September 28, 1990	$0.553B	▼ 2.47%
August 31, 1990	$0.567B	▼ 2.74%
July 31, 1990	$0.583B	▼ 2.35%
June 29, 1990	$0.597B	▲ 1.19%
May 31, 1990	$0.59B	▼ 2.16%
April 30, 1990	$0.603B	▼ 1.15%
March 30, 1990	$0.61B	▲ 0.49%
February 28, 1990	$0.607B	▲ 2.88%
January 31, 1990	$0.59B	▼ 9.23%
1989	$0.65B	▲ 6.73%
December 29, 1989	$0.65B	▲ 6.04%
November 30, 1989	$0.613B	— 0.00%
October 31, 1989	$0.613B	▼ 1.13%
September 29, 1989	$0.62B	— 0.00%
August 31, 1989	$0.62B	▼ 2.05%
July 31, 1989	$0.633B	▲ 2.59%
June 30, 1989	$0.617B	▼ 0.48%
May 31, 1989	$0.62B	▲ 5.08%
April 28, 1989	$0.59B	▲ 0.51%
March 31, 1989	$0.587B	▼ 2.65%
February 28, 1989	$0.603B	▲ 0.50%
January 31, 1989	$0.6B	▼ 1.48%
1988	$0.609B	▲ 5.73%
December 30, 1988	$0.609B	▲ 2.18%
November 30, 1988	$0.596B	▼ 1.00%
October 31, 1988	$0.602B	▼ 2.27%
September 30, 1988	$0.616B	▲ 1.65%
August 31, 1988	$0.606B	▲ 2.36%
July 29, 1988	$0.592B	▼ 3.90%
June 30, 1988	$0.616B	▲ 4.94%
May 31, 1988	$0.587B	▼ 0.34%
April 29, 1988	$0.589B	▼ 1.67%
March 31, 1988	$0.599B	▼ 4.77%
February 29, 1988	$0.629B	▲ 3.80%
January 29, 1988	$0.606B	▲ 5.21%
1987	$0.576B	▼ 12.99%
December 31, 1987	$0.576B	▼ 2.21%
November 30, 1987	$0.589B	▼ 2.81%
October 30, 1987	$0.606B	▼ 2.57%
September 30, 1987	$0.622B	▼ 2.66%
August 31, 1987	$0.639B	▲ 2.90%
July 31, 1987	$0.621B	▼ 2.20%
June 30, 1987	$0.635B	▲ 1.60%
May 29, 1987	$0.625B	▲ 7.39%
April 30, 1987	$0.582B	▼ 12.08%
March 31, 1987	$0.662B	▼ 4.06%
February 27, 1987	$0.69B	▼ 1.71%
January 30, 1987	$0.702B	▲ 6.04%
1986	$0.662B	▲ 23.97%
December 31, 1986	$0.662B	▼ 5.43%
November 28, 1986	$0.7B	▼ 0.99%
October 31, 1986	$0.707B	▲ 1.00%
September 30, 1986	$0.7B	▼ 7.41%
August 29, 1986	$0.756B	▲ 2.86%
July 31, 1986	$0.735B	▲ 12.21%
June 30, 1986	$0.655B	▲ 3.97%
May 30, 1986	$0.63B	▲ 3.11%
April 30, 1986	$0.611B	▼ 1.61%
March 31, 1986	$0.621B	▲ 3.33%
February 28, 1986	$0.601B	▲ 8.48%
January 31, 1986	$0.554B	▲ 3.75%
1985	$0.534B	▲ 36.57%
December 31, 1985	$0.534B	▲ 3.09%
November 29, 1985	$0.518B	▲ 7.47%
October 31, 1985	$0.482B	▲ 4.33%
September 30, 1985	$0.462B	▼ 4.74%
August 30, 1985	$0.485B	▲ 3.19%
July 31, 1985	$0.47B	▼ 2.49%
June 28, 1985	$0.482B	▲ 1.05%
May 31, 1985	$0.477B	▲ 6.47%
April 30, 1985	$0.448B	▲ 5.41%
March 29, 1985	$0.425B	▲ 7.59%
February 28, 1985	$0.395B	▲ 1.54%
January 31, 1985	$0.389B	▼ 0.51%

All market cap values reflect closing prices for the period shown.

📊 Alliant Energy Market Cap and Other Industry Peers

Below are selected companies from the Electric Utilities sector / subsector:

Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.