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AMERICAN ELECTRIC POWER CO INC
AEP - Company ID 0000004904
Market cap$72.83 B
Rank#229
Filings1,005
Market capitalization of AMERICAN ELECTRIC POWER CO INC
As of 2026-07-10, AMERICAN ELECTRIC POWER CO INC (AEP) has a market capitalization of $72.83 B, making it the #229 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-07-10 | $72.83 B |
| 2026-07-09 | $72.83 B |
| 2026-07-08 | $73.94 B |
| 2026-07-07 | $74.83 B |
| 2026-07-06 | $74.09 B |
| 2026-07-05 | $75.36 B |
| 2026-07-04 | $75.36 B |
| 2026-07-03 | $75.36 B |
| 2026-07-02 | $75.02 B |
| 2026-07-01 | $73.48 B |
| 2026-06-30 | $74.23 B |
| 2026-06-29 | $74.89 B |
Market Cap of similar companies
Frequently asked questions
What is AMERICAN ELECTRIC POWER CO INC's market cap?
As of 2026-07-10, AMERICAN ELECTRIC POWER CO INC (AEP) has a market capitalization of $72.83 B, making it the #229 most valuable US-listed company.
Where does AMERICAN ELECTRIC POWER CO INC rank by market cap?
AMERICAN ELECTRIC POWER CO INC is the #229 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.