American Electric Power Market Cap 2012-2025 | AEP
American Electric Power market cap history and chart from 2012 to 2025. Market capitalization (or market value) is the most commonly used method of measuring the size of a publicly traded company and is calculated by multiplying the current stock price by the number of shares outstanding. American Electric Power market cap as of January 19, 2026 is $64.07B.
| Sector | Industry | Market Cap | Revenue |
|---|---|---|---|
| Utilities | Utility - Electric Power Distribution | $64.070B | $19.721B |
| American Electric Power Company, Inc. is a public utility holding company, which, through directly and indirectly owned subsidiaries, generates, transmits and distributes electricity, natural gas and other commodities. It is one of the largest integrated utilities in the U.S., serving more than 5.5 million customers in multiple states. Its service area covers Arkansas, Indiana, Kentucky, Louisiana, Michigan, Ohio, Oklahoma, Tennessee, Texas, Virginia and West Virginia. The company mainly operates under the following business segments: Vertically Integrated Utility Operations, Transmission & Distribution Utilities, AEP Transmission Holdco, Generation and Marketing. Its public utility subsidiaries are Appalachian Power Company, Indiana Michigan Power Company, Kentucky Power Company, Kingsport Power Company, Ohio Power Company, Public Service Company of Oklahoma, Southwestern Electric Power Company, AEP Texas Central Company, AEP Texas North Company, Wheeling Power Company, etc. | |||
| Stock Name | Country | Market Cap | PE Ratio |
|---|---|---|---|
| NextEra Energy (NEE) | United States | $174.169B | 22.60 |
| Iberdrola S.A (IBDRY) | Spain | $144.031B | 23.89 |
| Southern (SO) | United States | $97.888B | 20.97 |
| Duke Energy (DUK) | United States | $92.713B | 18.40 |
| ENGIE - (ENGIY) | France | $67.287B | 0.00 |
| Vistra (VST) | United States | $56.448B | 38.21 |
| E.ON SE (EONGY) | Germany | $52.625B | 16.38 |
| Dominion Energy (D) | United States | $52.205B | 18.41 |
| Exelon (EXC) | United States | $45.190B | 15.92 |
| Xcel Energy (XEL) | United States | $44.726B | 20.77 |
| Entergy (ETR) | United States | $43.061B | 23.75 |
| Public Service Enterprise Group (PEG) | United States | $39.643B | 19.05 |
| Consolidated Edison Inc (ED) | United States | $37.469B | 17.90 |
| WEC Energy (WEC) | United States | $35.324B | 20.53 |
| Pacific Gas & Electric (PCG) | United States | $34.309B | 10.77 |
| NRG Energy (NRG) | United States | $29.139B | 17.74 |
| DTE Energy (DTE) | United States | $28.143B | 18.77 |
| Ameren (AEE) | United States | $28.131B | 20.72 |
| FirstEnergy (FE) | United States | $27.347B | 17.60 |
| PPL (PPL) | United States | $27.245B | 21.17 |
| Fortis (FTS) | Canada | $26.346B | 21.37 |
| Eversource Energy (ES) | United States | $26.305B | 15.05 |
| CenterPoint Energy (CNP) | United States | $25.925B | 23.09 |
| Korea Electric Power (KEP) | South Korea | $24.061B | 4.11 |
| Edison (EIX) | United States | $24.007B | 10.89 |
| CLP Holdings (CLPHY) | Hong Kong, SAR China | $23.471B | 0.00 |
| Hydro One (HRNNF) | Canada | $22.606B | 0.00 |
| CMS Energy (CMS) | United States | $21.814B | 20.31 |
| AXIA Energia (AXIA) | Brazil | $21.314B | 14.35 |
| NiSource (NI) | United States | $20.963B | 23.37 |
| Evergy (EVRG) | United States | $17.598B | 20.44 |
| Alliant Energy (LNT) | United States | $17.310B | 20.22 |
| Power Assets Holdings (HGKGY) | Hong Kong, SAR China | $15.313B | 0.00 |
| China Resources Power Holdings (CRPJY) | Hong Kong, SAR China | $12.477B | 0.00 |
| Pinnacle West Capital (PNW) | United States | $11.216B | 19.24 |
| AES (AES) | United States | $10.105B | 6.86 |
| OGE Energy (OGE) | United States | $8.792B | 17.53 |
| Brookfield Renewable Partners (BEP) | Bermuda | $8.629B | 0.00 |
| IDACORP (IDA) | United States | $7.275B | 23.13 |
| Companhia Paranaense De Energia - Copel (ELPC) | $6.788B | 18.61 | |
| Comp En De Mn Cemig ADS (CIG) | Brazil | $5.666B | 6.72 |
| Portland General Electric (POR) | United States | $5.590B | 17.08 |
| Companhia Paranaense De Energia (COPEL) (ELP) | Brazil | $5.520B | 84.27 |
| Black Hills (BKH) | United States | $5.343B | 18.02 |
| Algonquin Power & Utilities (AQN) | Canada | $4.971B | 19.61 |
| NorthWestern (NWE) | United States | $4.219B | 19.41 |
| Allete (ALE) | United States | $3.945B | 23.02 |
| TransAlta (TAC) | Canada | $3.727B | 418.67 |
| Otter Tail (OTTR) | United States | $3.681B | 13.25 |
| Kenon Holdings (KEN) | Singapore | $3.568B | 0.00 |
| Avista (AVA) | United States | $3.270B | 17.10 |
| MGE Energy (MGEE) | United States | $2.908B | 21.57 |
| Centuri Holdings (CTRI) | United States | $2.768B | 67.81 |
| Hawaiian Electric Industries (HE) | United States | $2.494B | 17.62 |
| Empresa Distribuidora Y Comercializadora Norte S.A (Edenor) (EDN) | Argentina | $1.227B | 6.48 |
| Unitil (UTL) | United States | $0.904B | 16.65 |
| Ballard Power Systems (BLDP) | Canada | $0.839B | 0.00 |
| Genie Energy (GNE) | United States | $0.385B | 0.00 |
| Polar Power (POLA) | United States | $0.004B | 0.00 |
| Eletrobras (EBR.B) | Brazil | $0.000B | 0.00 |
| Pampa Energia S.A (PAM) | Argentina | $0.000B | 13.67 |
| Enel Chile S.A (ENIC) | Chile | $0.000B | 71.67 |
| Great Plains Energy Inc (GXP) | United States | $0.000B | 0.00 |