American Electric Power (AEP) Market Cap 1985–2026

As of October 29, 2026, American Electric Power had a market cap of $70.43 billion, which increased by 0.92% 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

American Electric Power Co Inc. (AEP)

🌍 United States 📈 NASDAQ 🏭 Utilities 🏢 Electric Utilities

Latest Market Cap

$70.43B ▲ 0.92%

Start of 2026

$61.72B ▲ 14.11%

1 Year Ago

$65.19B ▲ 8.04%

All-Time High

$75.44B ▼ 6.64%

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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.

📈 American Electric Power Market Cap History by Year and Month

American Electric Power Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$70.43B	▲ 14.11%
October 29, 2026	$70.43B	▲ 9.06%
September 30, 2026	$64.58B	▼ 3.11%
August 31, 2026	$66.65B	▼ 4.17%
July 31, 2026	$69.55B	▼ 6.54%
June 30, 2026	$74.42B	▲ 7.98%
May 29, 2026	$68.92B	▼ 7.07%
April 30, 2026	$74.16B	▲ 4.60%
March 31, 2026	$70.9B	▼ 2.04%
February 27, 2026	$72.38B	▲ 12.90%
January 30, 2026	$64.11B	▲ 3.87%
2025	$61.72B	▲ 25.57%
December 31, 2025	$61.72B	▼ 6.84%
November 28, 2025	$66.25B	▲ 2.92%
October 31, 2025	$64.37B	▲ 7.00%
September 30, 2025	$60.16B	▲ 1.33%
August 29, 2025	$59.37B	▼ 1.88%
July 31, 2025	$60.51B	▲ 9.16%
June 30, 2025	$55.43B	▲ 0.27%
May 30, 2025	$55.28B	▼ 4.44%
April 30, 2025	$57.85B	▼ 0.86%
March 31, 2025	$58.35B	▲ 3.18%
February 28, 2025	$56.55B	▲ 7.88%
January 31, 2025	$52.42B	▲ 6.65%
2024	$49.15B	▲ 15.07%
December 31, 2024	$49.15B	▼ 7.58%
November 29, 2024	$53.182B	▲ 1.14%
October 31, 2024	$52.581B	▼ 3.75%
September 30, 2024	$54.631B	▲ 2.38%
August 30, 2024	$53.361B	▲ 2.20%
July 31, 2024	$52.212B	▲ 12.89%
June 28, 2024	$46.25B	▼ 2.78%
May 31, 2024	$47.573B	▲ 4.91%
April 30, 2024	$45.348B	▲ 0.02%
March 28, 2024	$45.339B	▲ 1.07%
February 29, 2024	$44.86B	▲ 9.11%
January 31, 2024	$41.116B	▼ 3.74%
2023	$42.712B	▼ 12.46%
December 29, 2023	$42.712B	▲ 2.10%
November 30, 2023	$41.834B	▲ 5.36%
October 31, 2023	$39.707B	▲ 2.46%
September 29, 2023	$38.752B	▼ 4.06%
August 31, 2023	$40.39B	▼ 7.48%
July 31, 2023	$43.656B	▲ 0.65%
June 30, 2023	$43.376B	▲ 1.37%
May 31, 2023	$42.789B	▼ 10.04%
April 28, 2023	$47.564B	▲ 1.57%
March 31, 2023	$46.828B	▲ 3.48%
February 28, 2023	$45.253B	▼ 6.28%
January 31, 2023	$48.283B	▼ 1.04%
2022	$48.791B	▲ 8.76%
December 30, 2022	$48.791B	▼ 1.91%
November 30, 2022	$49.742B	▲ 10.10%
October 31, 2022	$45.179B	▲ 1.72%
September 30, 2022	$44.415B	▼ 13.72%
August 31, 2022	$51.476B	▲ 1.66%
July 29, 2022	$50.633B	▲ 2.74%
June 30, 2022	$49.283B	▼ 5.94%
May 31, 2022	$52.396B	▲ 2.95%
April 29, 2022	$50.897B	▼ 0.66%
March 31, 2022	$51.236B	▲ 12.10%
February 28, 2022	$45.707B	▲ 0.28%
January 31, 2022	$45.581B	▲ 1.61%
2021	$44.86B	▲ 8.48%
December 31, 2021	$44.86B	▲ 11.50%
November 30, 2021	$40.232B	▼ 5.70%
October 29, 2021	$42.664B	▲ 4.36%
September 30, 2021	$40.88B	▼ 8.76%
August 31, 2021	$44.807B	▲ 1.64%
July 30, 2021	$44.082B	▲ 4.18%
June 30, 2021	$42.314B	▼ 1.55%
May 28, 2021	$42.979B	▼ 3.05%
April 30, 2021	$44.333B	▲ 4.84%
March 31, 2021	$42.286B	▲ 13.75%
February 26, 2021	$37.175B	▼ 7.48%
January 29, 2021	$40.18B	▼ 2.83%
2020	$41.352B	▼ 11.46%
December 31, 2020	$41.352B	▼ 1.87%
November 30, 2020	$42.139B	▼ 5.60%
October 30, 2020	$44.64B	▲ 10.04%
September 30, 2020	$40.567B	▲ 3.72%
August 31, 2020	$39.112B	▼ 9.24%
July 31, 2020	$43.093B	▲ 9.09%
June 30, 2020	$39.502B	▼ 6.50%
May 29, 2020	$42.248B	▲ 2.65%
April 30, 2020	$41.157B	▲ 3.91%
March 31, 2020	$39.607B	▼ 10.33%
February 28, 2020	$44.169B	▼ 14.24%
January 31, 2020	$51.502B	▲ 10.27%
2019	$46.704B	▲ 26.69%
December 31, 2019	$46.704B	▲ 3.51%
November 29, 2019	$45.122B	▼ 3.22%
October 31, 2019	$46.624B	▲ 0.75%
September 30, 2019	$46.277B	▲ 2.81%
August 30, 2019	$45.01B	▲ 3.80%
July 31, 2019	$43.361B	▼ 0.15%
June 28, 2019	$43.428B	▲ 2.20%
May 31, 2019	$42.495B	▲ 0.67%
April 30, 2019	$42.214B	▲ 2.18%
March 29, 2019	$41.313B	▲ 3.21%
February 28, 2019	$40.03B	▲ 2.57%
January 31, 2019	$39.026B	▲ 5.86%
2018	$36.866B	▲ 1.85%
December 31, 2018	$36.866B	▼ 3.83%
November 30, 2018	$38.334B	▲ 5.97%
October 31, 2018	$36.175B	▲ 3.54%
September 28, 2018	$34.939B	▼ 1.19%
August 31, 2018	$35.358B	▲ 0.83%
July 31, 2018	$35.067B	▲ 2.81%
June 29, 2018	$34.107B	▲ 1.91%
May 31, 2018	$33.467B	▼ 2.90%
April 30, 2018	$34.467B	▲ 2.08%
March 29, 2018	$33.766B	▲ 4.59%
February 28, 2018	$32.284B	▼ 4.60%
January 31, 2018	$33.84B	▼ 6.51%
2017	$36.196B	▲ 16.92%
December 29, 2017	$36.196B	▼ 5.21%
November 30, 2017	$38.185B	▲ 4.33%
October 31, 2017	$36.601B	▲ 5.95%
September 29, 2017	$34.547B	▼ 4.60%
August 31, 2017	$36.214B	▲ 4.38%
July 31, 2017	$34.694B	▲ 1.54%
June 30, 2017	$34.168B	▼ 3.19%
May 31, 2017	$35.295B	▲ 5.82%
April 28, 2017	$33.353B	▲ 1.05%
March 31, 2017	$33.008B	▲ 0.24%
February 28, 2017	$32.93B	▲ 4.54%
January 31, 2017	$31.499B	▲ 1.75%
2016	$30.958B	▲ 8.20%
December 30, 2016	$30.958B	▲ 6.62%
November 30, 2016	$29.035B	▼ 8.93%
October 31, 2016	$31.882B	▲ 0.98%
September 30, 2016	$31.573B	▼ 0.56%
August 31, 2016	$31.75B	▼ 6.83%
July 29, 2016	$34.076B	▼ 1.11%
June 30, 2016	$34.46B	▲ 8.36%
May 31, 2016	$31.802B	▲ 1.94%
April 29, 2016	$31.198B	▼ 4.35%
March 31, 2016	$32.618B	▲ 7.56%
February 29, 2016	$30.324B	▲ 1.29%
January 29, 2016	$29.939B	▲ 4.63%
2015	$28.613B	▼ 3.71%
December 31, 2015	$28.613B	▲ 4.08%
November 30, 2015	$27.491B	▼ 1.13%
October 30, 2015	$27.805B	▼ 0.37%
September 30, 2015	$27.907B	▲ 4.78%
August 31, 2015	$26.633B	▼ 4.03%
July 31, 2015	$27.751B	▲ 6.80%
June 30, 2015	$25.984B	▼ 5.78%
May 29, 2015	$27.579B	▼ 1.02%
April 30, 2015	$27.863B	▲ 1.10%
March 31, 2015	$27.559B	▼ 2.25%
February 27, 2015	$28.192B	▼ 8.29%
January 30, 2015	$30.739B	▲ 3.44%
2014	$29.716B	▲ 30.34%
December 31, 2014	$29.716B	▲ 5.54%
November 28, 2014	$28.156B	▼ 1.35%
October 31, 2014	$28.542B	▲ 11.74%
September 30, 2014	$25.543B	▼ 2.66%
August 29, 2014	$26.242B	▲ 3.29%
July 31, 2014	$25.406B	▼ 6.76%
June 30, 2014	$27.248B	▲ 4.64%
May 30, 2014	$26.039B	▼ 0.86%
April 30, 2014	$26.264B	▲ 6.22%
March 31, 2014	$24.725B	▲ 0.96%
February 28, 2014	$24.489B	▲ 2.86%
January 31, 2014	$23.809B	▲ 4.43%
2013	$22.799B	▲ 9.99%
December 31, 2013	$22.799B	▼ 0.58%
November 29, 2013	$22.932B	▲ 0.47%
October 31, 2013	$22.825B	▲ 8.06%
September 30, 2013	$21.123B	▲ 1.39%
August 30, 2013	$20.834B	▼ 7.66%
July 31, 2013	$22.562B	▲ 3.66%
June 28, 2013	$21.765B	▼ 2.27%
May 31, 2013	$22.271B	▼ 10.91%
April 30, 2013	$24.998B	▲ 5.82%
March 28, 2013	$23.624B	▲ 3.93%
February 28, 2013	$22.73B	▲ 3.34%
January 31, 2013	$21.996B	▲ 6.12%
2012	$20.728B	▲ 3.90%
December 31, 2012	$20.728B	▲ 0.15%
November 30, 2012	$20.696B	▼ 4.03%
October 31, 2012	$21.565B	▲ 1.21%
September 28, 2012	$21.307B	▲ 2.21%
August 31, 2012	$20.846B	▲ 1.78%
July 31, 2012	$20.482B	▲ 5.99%
June 29, 2012	$19.324B	▲ 3.61%
May 31, 2012	$18.651B	▼ 0.85%
April 30, 2012	$18.811B	▲ 0.76%
March 30, 2012	$18.669B	▲ 2.58%
February 29, 2012	$18.199B	▼ 4.84%
January 31, 2012	$19.124B	▼ 4.14%
2011	$19.949B	▲ 15.31%
December 30, 2011	$19.949B	▲ 4.11%
November 30, 2011	$19.162B	▲ 1.02%
October 31, 2011	$18.969B	▲ 3.32%
September 30, 2011	$18.359B	▼ 1.45%
August 31, 2011	$18.63B	▲ 4.80%
July 29, 2011	$17.776B	▼ 2.17%
June 30, 2011	$18.17B	▼ 1.27%
May 31, 2011	$18.404B	▲ 4.71%
April 29, 2011	$17.576B	▲ 3.83%
March 31, 2011	$16.927B	▼ 1.67%
February 28, 2011	$17.214B	▲ 0.34%
January 31, 2011	$17.155B	▼ 0.84%
2010	$17.3B	▲ 4.02%
December 31, 2010	$17.3B	▲ 1.18%
November 30, 2010	$17.098B	▼ 4.92%
October 29, 2010	$17.982B	▲ 3.39%
September 30, 2010	$17.392B	▲ 2.44%
August 31, 2010	$16.977B	▼ 1.58%
July 30, 2010	$17.25B	▲ 11.41%
June 30, 2010	$15.484B	▲ 1.17%
May 28, 2010	$15.305B	▼ 6.82%
April 30, 2010	$16.425B	▲ 0.35%
March 31, 2010	$16.367B	▲ 1.84%
February 26, 2010	$16.072B	▼ 2.97%
January 29, 2010	$16.564B	▼ 0.40%
2009	$16.631B	▲ 23.06%
December 31, 2009	$16.631B	▲ 8.16%
November 30, 2009	$15.376B	▲ 6.52%
October 30, 2009	$14.435B	▼ 2.43%
September 30, 2009	$14.795B	▼ 1.27%
August 31, 2009	$14.986B	▲ 1.52%
July 31, 2009	$14.761B	▲ 7.17%
June 30, 2009	$13.774B	▲ 9.68%
May 29, 2009	$12.558B	▼ 0.15%
April 30, 2009	$12.577B	▲ 22.62%
March 31, 2009	$10.257B	▼ 9.95%
February 27, 2009	$11.39B	▼ 10.53%
January 30, 2009	$12.73B	▼ 5.80%
2008	$13.514B	▼ 27.52%
December 31, 2008	$13.514B	▲ 7.02%
November 28, 2008	$12.627B	▼ 4.11%
October 31, 2008	$13.168B	▼ 11.60%
September 30, 2008	$14.896B	▼ 5.15%
August 29, 2008	$15.704B	▼ 1.16%
July 31, 2008	$15.889B	▼ 1.79%
June 30, 2008	$16.178B	▼ 4.83%
May 30, 2008	$16.999B	▼ 5.16%
April 30, 2008	$17.923B	▲ 7.23%
March 31, 2008	$16.715B	▲ 2.01%
February 29, 2008	$16.386B	▼ 4.23%
January 31, 2008	$17.11B	▼ 8.23%
2007	$18.644B	▲ 10.69%
December 31, 2007	$18.644B	▼ 2.22%
November 30, 2007	$19.068B	▼ 1.12%
October 31, 2007	$19.284B	▲ 4.83%
September 28, 2007	$18.395B	▲ 3.60%
August 31, 2007	$17.756B	▲ 2.28%
July 31, 2007	$17.361B	▼ 3.34%
June 29, 2007	$17.961B	▼ 5.43%
May 31, 2007	$18.993B	▼ 5.16%
April 30, 2007	$20.026B	▲ 3.56%
March 30, 2007	$19.338B	▲ 8.58%
February 28, 2007	$17.81B	▲ 3.14%
January 31, 2007	$17.267B	▲ 2.52%
2006	$16.843B	▲ 15.35%
December 29, 2006	$16.843B	▲ 2.58%
November 30, 2006	$16.42B	▲ 0.20%
October 31, 2006	$16.388B	▲ 14.37%
September 29, 2006	$14.329B	▼ 0.30%
August 31, 2006	$14.372B	▲ 0.99%
July 31, 2006	$14.231B	▲ 5.46%
June 30, 2006	$13.494B	▼ 0.04%
May 31, 2006	$13.499B	▲ 2.42%
April 28, 2006	$13.18B	▼ 1.65%
March 31, 2006	$13.401B	▼ 6.75%
February 28, 2006	$14.371B	▼ 2.20%
January 31, 2006	$14.694B	▲ 0.63%
2005	$14.602B	▲ 7.42%
December 30, 2005	$14.602B	▲ 1.51%
November 30, 2005	$14.385B	▼ 3.74%
October 31, 2005	$14.944B	▼ 4.33%
September 30, 2005	$15.62B	▲ 9.18%
August 31, 2005	$14.306B	▼ 3.93%
July 29, 2005	$14.891B	▲ 5.07%
June 30, 2005	$14.173B	▲ 3.41%
May 31, 2005	$13.706B	▲ 1.34%
April 29, 2005	$13.525B	▲ 3.43%
March 31, 2005	$13.077B	▼ 1.10%
February 28, 2005	$13.222B	▼ 5.25%
January 31, 2005	$13.954B	▲ 2.65%
2004	$13.594B	▲ 12.79%
December 31, 2004	$13.594B	▲ 0.54%
November 30, 2004	$13.521B	▲ 3.76%
October 29, 2004	$13.031B	▲ 3.04%
September 30, 2004	$12.647B	▼ 2.34%
August 31, 2004	$12.95B	▲ 5.21%
July 30, 2004	$12.309B	▼ 2.78%
June 30, 2004	$12.661B	▲ 0.89%
May 28, 2004	$12.549B	▲ 4.37%
April 30, 2004	$12.024B	▼ 7.68%
March 31, 2004	$13.024B	▼ 4.43%
February 27, 2004	$13.628B	▲ 5.67%
January 30, 2004	$12.897B	▲ 7.01%
2003	$12.052B	▲ 30.15%
December 31, 2003	$12.052B	▲ 10.18%
November 28, 2003	$10.938B	▼ 1.77%
October 31, 2003	$11.135B	▼ 6.03%
September 30, 2003	$11.85B	▲ 5.97%
August 29, 2003	$11.182B	▲ 0.88%
July 31, 2003	$11.084B	▼ 5.93%
June 30, 2003	$11.783B	▲ 2.72%
May 30, 2003	$11.471B	▲ 10.09%
April 30, 2003	$10.42B	▲ 15.44%
March 31, 2003	$9.026B	▲ 22.30%
February 28, 2003	$7.38B	▼ 7.78%
January 31, 2003	$8.003B	▼ 13.57%
2002	$9.26B	▼ 33.98%
December 31, 2002	$9.26B	▼ 3.84%
November 29, 2002	$9.63B	▲ 10.84%
October 31, 2002	$8.688B	▼ 10.06%
September 30, 2002	$9.66B	▼ 16.39%
August 30, 2002	$11.554B	▲ 3.61%
July 31, 2002	$11.151B	▼ 17.77%
June 28, 2002	$13.56B	▼ 1.70%
May 31, 2002	$13.794B	▼ 6.70%
April 30, 2002	$14.785B	▼ 0.49%
March 28, 2002	$14.858B	▲ 5.11%
February 28, 2002	$14.136B	▲ 5.10%
January 31, 2002	$13.45B	▼ 4.11%
2001	$14.027B	▼ 6.32%
December 31, 2001	$14.027B	▲ 5.53%
November 30, 2001	$13.292B	▼ 1.56%
October 31, 2001	$13.502B	▼ 3.07%
September 28, 2001	$13.929B	▼ 5.55%
August 31, 2001	$14.747B	▲ 1.71%
July 31, 2001	$14.499B	▼ 2.52%
June 29, 2001	$14.874B	▼ 8.03%
May 31, 2001	$16.172B	▲ 1.74%
April 30, 2001	$15.895B	▲ 5.02%
March 30, 2001	$15.135B	▼ 1.14%
February 28, 2001	$15.309B	▲ 9.92%
January 31, 2001	$13.927B	▼ 6.99%
2000	$14.973B	▲ 140.14%
December 29, 2000	$14.973B	▲ 1.09%
November 30, 2000	$14.812B	▲ 10.84%
October 31, 2000	$13.363B	▲ 6.07%
September 29, 2000	$12.598B	▲ 11.00%
August 31, 2000	$11.35B	▲ 7.43%
July 31, 2000	$10.565B	▲ 10.76%
June 30, 2000	$9.539B	▲ 38.19%
May 31, 2000	$6.903B	▼ 2.90%
April 28, 2000	$7.109B	▲ 22.84%
March 31, 2000	$5.787B	▲ 6.01%
February 29, 2000	$5.459B	▼ 16.04%
January 31, 2000	$6.502B	▲ 4.28%
1999	$6.235B	▼ 30.94%
December 31, 1999	$6.235B	▲ 2.38%
November 30, 1999	$6.09B	▼ 9.05%
October 29, 1999	$6.696B	▲ 1.10%
September 30, 1999	$6.623B	▼ 5.64%
August 31, 1999	$7.019B	▲ 2.65%
July 30, 1999	$6.838B	▼ 5.81%
June 30, 1999	$7.26B	▼ 13.07%
May 28, 1999	$8.352B	▲ 4.67%
April 30, 1999	$7.979B	▲ 4.41%
March 31, 1999	$7.642B	▼ 4.30%
February 26, 1999	$7.985B	▼ 4.99%
January 29, 1999	$8.404B	▼ 6.91%
1998	$9.028B	▼ 7.95%
December 31, 1998	$9.028B	▲ 1.75%
November 30, 1998	$8.873B	▼ 5.24%
October 30, 1998	$9.364B	▲ 0.26%
September 30, 1998	$9.34B	▲ 8.14%
August 31, 1998	$8.637B	▲ 5.39%
July 31, 1998	$8.195B	▼ 5.38%
June 30, 1998	$8.661B	▲ 0.27%
May 29, 1998	$8.638B	▼ 4.98%
April 30, 1998	$9.091B	▼ 4.98%
March 31, 1998	$9.567B	▲ 4.90%
February 27, 1998	$9.12B	▼ 2.66%
January 30, 1998	$9.369B	▼ 4.48%
1997	$9.808B	▲ 26.70%
December 31, 1997	$9.808B	▲ 4.36%
November 28, 1997	$9.398B	▲ 4.90%
October 31, 1997	$8.959B	▲ 3.85%
September 30, 1997	$8.627B	▲ 4.38%
August 29, 1997	$8.265B	▼ 2.37%
July 31, 1997	$8.466B	▲ 6.71%
June 30, 1997	$7.934B	▲ 3.71%
May 30, 1997	$7.65B	▲ 0.31%
April 30, 1997	$7.626B	▼ 1.82%
March 31, 1997	$7.767B	▼ 1.17%
February 28, 1997	$7.859B	▲ 0.91%
January 31, 1997	$7.788B	▲ 0.61%
1996	$7.741B	▲ 2.61%
December 31, 1996	$7.741B	▼ 0.69%
November 29, 1996	$7.795B	▼ 0.31%
October 31, 1996	$7.819B	▲ 2.46%
September 30, 1996	$7.631B	▼ 1.90%
August 30, 1996	$7.779B	— 0.00%
July 31, 1996	$7.779B	▼ 2.40%
June 28, 1996	$7.97B	▲ 6.22%
May 31, 1996	$7.503B	▼ 1.22%
April 30, 1996	$7.596B	▼ 2.52%
March 29, 1996	$7.792B	▼ 2.62%
February 29, 1996	$8.002B	▼ 3.11%
January 31, 1996	$8.259B	▲ 9.48%
1995	$7.544B	▲ 24.12%
December 29, 1995	$7.544B	▲ 7.28%
November 30, 1995	$7.032B	▼ 0.99%
October 31, 1995	$7.102B	▲ 5.00%
September 29, 1995	$6.764B	▲ 6.60%
August 31, 1995	$6.345B	▼ 1.09%
July 31, 1995	$6.415B	▼ 1.78%
June 30, 1995	$6.531B	▲ 2.75%
May 31, 1995	$6.356B	▲ 4.57%
April 28, 1995	$6.078B	▲ 3.16%
March 31, 1995	$5.892B	▼ 6.10%
February 28, 1995	$6.275B	▼ 3.21%
January 31, 1995	$6.483B	▲ 6.66%
1994	$6.078B	▼ 11.28%
December 30, 1994	$6.078B	▼ 0.38%
November 30, 1994	$6.101B	▲ 3.13%
October 31, 1994	$5.916B	▲ 1.98%
September 30, 1994	$5.801B	▼ 0.21%
August 31, 1994	$5.813B	▲ 3.29%
July 29, 1994	$5.628B	▲ 7.96%
June 30, 1994	$5.213B	▼ 2.18%
May 31, 1994	$5.329B	▼ 11.15%
April 29, 1994	$5.998B	▲ 5.69%
March 31, 1994	$5.675B	▼ 7.17%
February 28, 1994	$6.113B	▼ 8.31%
January 31, 1994	$6.667B	▼ 2.69%
1993	$6.851B	▲ 12.07%
December 31, 1993	$6.851B	▲ 2.76%
November 30, 1993	$6.667B	▼ 6.16%
October 29, 1993	$7.105B	— 0.00%
September 30, 1993	$7.105B	▼ 0.64%
August 31, 1993	$7.151B	▲ 0.97%
July 30, 1993	$7.082B	▲ 1.67%
June 30, 1993	$6.966B	▲ 9.41%
May 28, 1993	$6.367B	▼ 7.06%
April 30, 1993	$6.851B	▲ 0.68%
March 31, 1993	$6.805B	▲ 3.51%
February 26, 1993	$6.574B	▲ 5.17%
January 29, 1993	$6.251B	▲ 2.26%
1992	$6.113B	▼ 3.28%
December 31, 1992	$6.113B	▲ 6.42%
November 30, 1992	$5.744B	▼ 4.23%
October 30, 1992	$5.998B	▼ 1.51%
September 30, 1992	$6.09B	▲ 1.53%
August 31, 1992	$5.998B	▼ 6.47%
July 31, 1992	$6.413B	▲ 9.03%
June 30, 1992	$5.882B	▲ 0.79%
May 29, 1992	$5.836B	▼ 1.17%
April 30, 1992	$5.905B	▲ 4.05%
March 31, 1992	$5.675B	▼ 0.40%
February 28, 1992	$5.698B	▼ 4.62%
January 31, 1992	$5.974B	▼ 5.47%
1991	$6.32B	▲ 22.29%
December 31, 1991	$6.32B	▲ 8.29%
November 29, 1991	$5.836B	▲ 0.40%
October 31, 1991	$5.813B	▲ 2.85%
September 30, 1991	$5.652B	▲ 1.67%
August 30, 1991	$5.559B	▲ 1.68%
July 31, 1991	$5.467B	▲ 4.41%
June 28, 1991	$5.236B	▼ 1.32%
May 31, 1991	$5.306B	▼ 2.94%
April 30, 1991	$5.467B	▲ 1.71%
March 28, 1991	$5.375B	▲ 2.19%
February 28, 1991	$5.26B	▲ 3.65%
January 31, 1991	$5.075B	▼ 1.80%
1990	$5.168B	▼ 19.09%
December 31, 1990	$5.168B	▼ 0.86%
November 30, 1990	$5.213B	▲ 0.89%
October 31, 1990	$5.167B	▲ 5.66%
September 28, 1990	$4.89B	— 0.00%
August 31, 1990	$4.89B	▼ 11.30%
July 31, 1990	$5.513B	▼ 2.77%
June 29, 1990	$5.67B	▲ 2.59%
May 31, 1990	$5.527B	▼ 0.43%
April 30, 1990	$5.551B	▼ 5.58%
March 30, 1990	$5.879B	▼ 0.41%
February 28, 1990	$5.903B	▼ 1.22%
January 31, 1990	$5.976B	▼ 6.43%
1989	$6.387B	▲ 21.10%
December 29, 1989	$6.387B	▲ 6.45%
November 30, 1989	$6B	▲ 0.40%
October 31, 1989	$5.976B	▲ 2.93%
September 29, 1989	$5.806B	— 0.00%
August 31, 1989	$5.806B	▼ 3.23%
July 31, 1989	$6B	▲ 11.71%
June 30, 1989	$5.371B	▲ 0.92%
May 31, 1989	$5.322B	▲ 2.80%
April 28, 1989	$5.177B	▲ 0.94%
March 31, 1989	$5.129B	— 0.00%
February 28, 1989	$5.129B	▼ 4.51%
January 31, 1989	$5.371B	▲ 1.84%
1988	$5.274B	▲ 3.82%
December 30, 1988	$5.274B	▲ 0.92%
November 30, 1988	$5.226B	▼ 3.56%
October 31, 1988	$5.419B	▲ 1.35%
September 30, 1988	$5.347B	▲ 1.38%
August 31, 1988	$5.274B	▼ 4.80%
July 29, 1988	$5.54B	▼ 0.86%
June 30, 1988	$5.588B	▲ 0.87%
May 31, 1988	$5.54B	▲ 6.52%
April 29, 1988	$5.201B	▼ 0.93%
March 31, 1988	$5.25B	▼ 4.41%
February 29, 1988	$5.492B	▼ 4.62%
January 29, 1988	$5.758B	▲ 13.35%
1987	$5.08B	▼ 4.55%
December 31, 1987	$5.08B	▲ 4.46%
November 30, 1987	$4.863B	▼ 7.37%
October 30, 1987	$5.25B	▼ 1.35%
September 30, 1987	$5.322B	▲ 0.45%
August 31, 1987	$5.298B	— 0.00%
July 31, 1987	$5.298B	▼ 0.45%
June 30, 1987	$5.322B	▲ 3.28%
May 29, 1987	$5.153B	▼ 4.91%
April 30, 1987	$5.419B	▼ 1.33%
March 31, 1987	$5.492B	▼ 3.80%
February 27, 1987	$5.709B	▼ 5.61%
January 30, 1987	$6.048B	▲ 13.64%
1986	$5.322B	▲ 16.40%
December 31, 1986	$5.322B	▼ 5.59%
November 28, 1986	$5.637B	▼ 2.91%
October 31, 1986	$5.806B	▲ 11.10%
September 30, 1986	$5.226B	▼ 12.55%
August 29, 1986	$5.976B	▲ 4.68%
July 31, 1986	$5.709B	▲ 10.79%
June 30, 1986	$5.153B	▲ 2.90%
May 30, 1986	$5.008B	— 0.00%
April 30, 1986	$5.008B	▼ 6.76%
March 31, 1986	$5.371B	▲ 4.72%
February 28, 1986	$5.129B	▲ 3.93%
January 31, 1986	$4.935B	▲ 7.94%
1985	$4.572B	▲ 15.45%
December 31, 1985	$4.572B	▲ 5.42%
November 29, 1985	$4.337B	— 0.00%
October 31, 1985	$4.337B	▲ 9.05%
September 30, 1985	$3.977B	▼ 3.59%
August 30, 1985	$4.125B	▼ 6.97%
July 31, 1985	$4.434B	▼ 1.60%
June 28, 1985	$4.506B	▲ 3.28%
May 31, 1985	$4.363B	▲ 5.18%
April 30, 1985	$4.148B	▲ 1.72%
March 29, 1985	$4.078B	▲ 2.98%
February 28, 1985	$3.96B	▼ 2.32%
January 31, 1985	$4.054B	▲ 2.37%

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

📊 American Electric Power 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.