American Electric Power Co Inc (NASDAQ:AEP) — Market Cap & Net Worth

$71.56 Billion USD · Rank #379

Market Cap & Net Worth: American Electric Power Co Inc (AEP)

American Electric Power Co Inc (NASDAQ:AEP) has a market capitalization of $71.56 Billion ($71.56 Billion) as of May 1, 2026. Listed on the NASDAQ stock exchange, this USA-based company holds position #379 globally and #190 in its home market, demonstrating a 4.17% increase in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying American Electric Power Co Inc's stock price $137.11 by its total outstanding shares 540861473 (540.86 Million). Review debt load of American Electric Power Co Inc to assess the company's total debt and financial obligations.

American Electric Power Co Inc Market Cap History: 2015 to 2026

American Electric Power Co Inc's market capitalization history from 2015 to 2026. Data shows growth from $22.91 Billion to $74.16 Billion (11.84% CAGR).

Index Memberships

American Electric Power Co Inc is a constituent of 6 market indices:

Index	Total Market Cap	Weight (%)	Rank by Market Cap
Dow Jones Composite Average DJA	$16.49 Trillion	0.43%	#35 of 65
DJC: Dow Jones-UBS Commodity Index DJC	$23.35 Trillion	1.05%	#38 of 65
Dow Jones Utility DJU	$920.35 Billion	7.97%	#4 of 15
S&P 500 Index GSPC	$59.60 Trillion	0.12%	#154 of 503
NASDAQ Composite IXIC	$38.80 Trillion	0.18%	#61 of 3165
Nasdaq 100 NDX	$32.68 Trillion	0.22%	#55 of 101

Weight: American Electric Power Co Inc's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

American Electric Power Co Inc Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how American Electric Power Co Inc's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance.

Latest Price to Sales (P/S) Ratio

2.86x

American Electric Power Co Inc's market cap is 2.86 times its annual revenue

Industry average: 0.52x Higher than industry average

Latest Price to Earnings (P/E) Ratio

17.42x

American Electric Power Co Inc's market cap is 17.42 times its annual earnings

Industry average: 4.50x Higher than industry average

What These Ratios Tell Investors:

Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
Industry comparison provides context for whether the company is valued higher or lower than peers.

Year	Market Cap (USD)	Revenue (USD)	Net Income (USD)	P/S Ratio	P/E Ratio
2016	$25.64 Billion	$16.32 Billion	$610.90 Million	1.57x	41.97x
2017	$31.01 Billion	$15.38 Billion	$1.91 Billion	2.02x	16.21x
2018	$32.68 Billion	$16.17 Billion	$1.92 Billion	2.02x	16.99x
2019	$42.65 Billion	$15.54 Billion	$1.92 Billion	2.75x	22.20x
2020	$38.81 Billion	$14.91 Billion	$2.20 Billion	2.60x	17.64x
2021	$42.95 Billion	$16.62 Billion	$2.49 Billion	2.58x	17.26x
2022	$47.41 Billion	$19.31 Billion	$2.31 Billion	2.45x	20.55x
2023	$42.21 Billion	$19.38 Billion	$2.21 Billion	2.18x	19.12x
2024	$49.88 Billion	$19.92 Billion	$2.97 Billion	2.50x	16.81x
2025	$62.37 Billion	$21.78 Billion	$3.58 Billion	2.86x	17.42x

Competitor Companies of AEP by Market Capitalization

Companies near American Electric Power Co Inc in the global market cap rankings as of May 1, 2026.

Key companies related to American Electric Power Co Inc by market ranking:

Nextera Energy Inc (NYSE:NEE): Ranked #108 globally with a market cap of $195.35 Billion USD.
Duke Energy Corporation (NYSE:DUK): Ranked #243 globally with a market cap of $100.82 Billion USD.
Dominion Energy Inc (NYSE:D): Ranked #461 globally with a market cap of $56.35 Billion USD.
Southern Company (NYSE:SO): Ranked #251 globally with a market cap of $97.89 Billion USD.

Market capitalization comparison (in billions USD)

Rank	Company	Symbol	Market Cap	Price
#108	Nextera Energy Inc	NYSE:NEE	$195.35 Billion	$97.88
#243	Duke Energy Corporation	NYSE:DUK	$100.82 Billion	$129.55
#461	Dominion Energy Inc	NYSE:D	$56.35 Billion	$64.50
#251	Southern Company	NYSE:SO	$97.89 Billion	$96.70

American Electric Power Co Inc Historical Marketcap From 2015 to 2026

Between 2015 and today, American Electric Power Co Inc's market cap moved from $22.91 Billion to $ 74.16 Billion, with a yearly change of 11.84%.

Year	Market Cap	Change (%)
2026	$74.16 Billion	+18.91%
2025	$62.37 Billion	+25.02%
2024	$49.88 Billion	+18.18%
2023	$42.21 Billion	-10.98%
2022	$47.41 Billion	+10.38%
2021	$42.95 Billion	+10.68%
2020	$38.81 Billion	-9.01%
2019	$42.65 Billion	+30.52%
2018	$32.68 Billion	+5.38%
2017	$31.01 Billion	+20.95%
2016	$25.64 Billion	+11.92%
2015	$22.91 Billion	--

End of Day Market Cap According to Different Sources

On May 1st, 2026 the market cap of American Electric Power Co Inc was reported to be:

Source	Market Cap
Yahoo Finance	$71.56 Billion USD
MoneyControl	$71.56 Billion USD
MarketWatch	$71.56 Billion USD
marketcap.company	$71.56 Billion USD
Reuters	$71.56 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About American Electric Power Co Inc

NASDAQ:AEP USA Utilities - Regulated Electric

Market Cap

$74.16 Billion

Market Cap Rank

#379 Global

#190 in USA

Share Price

$137.11

Change (1 day)

+1.99%

52-Week Range

$98.59 - $137.15

All Time High

$137.15