American Electric Power Company, Inc., or AEP for short, is one of the largest energy companies in the United States. The company powers parts of 11 states in the United States and employs around 17,666 people.
As of September 2026 American Electric Power has a market cap of โน6.270 Trillion. This makes American Electric Power the world's 379th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Sep 17th, 2026 the market cap of American Electric Power was reported to be: