American Electric Power Co., Inc. (AEP)
American Electric Power Market Cap : 69.97B for Feb. 20, 2026
Market Cap Chart
Historical Data
Market Capitalization Definition
Market Capitalization measures the total value of a company based on their stock price multiplied by the shares outstanding. This metric is important because it gives you an idea of the size of a company, and how the size has changed over time. When studying companies from a relative basis, it would make sense to compare companies that have a similar market capitalization because factors like market share, economies of scale, and business models would also be similar.
Market Cap Range, Past 5 Years
Market Cap Benchmarks
| FirstEnergy Corp. | 29.00B |
| Duke Energy Corp. | 98.59B |
| Entergy Corp. | 47.05B |
| The Southern Co. | 103.83B |
| Dominion Energy, Inc. | 56.32B |
Market Cap Related Metrics
| PE Ratio | 19.43 |
| PS Ratio | 3.164 |
| PEG Ratio | 1.013 |
| Price to Book Value | 2.247 |
| Price | 129.37 |
| Earnings Yield | 5.15% |
| PEGY Ratio | 0.8793 |
| Operating PE Ratio | 12.62 |
| Normalized PE Ratio | 19.18 |