National Grid Plc (NGG)
National Grid Market Cap : 83.81B for May 19, 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
| Centrica Plc | 12.16B |
| UNITIL Corp. | 915.73M |
| Veolia Environnement SA | 29.22B |
| E.ON SE | 55.91B |
| Ameren Corp. | 30.03B |
Market Cap Related Metrics
| PE Ratio | 19.29 |
| PS Ratio | 3.500 |
| PEG Ratio | 0.8589 |
| Price | 84.22 |
| Earnings Yield | 5.18% |
| PEGY Ratio | 0.7368 |
| Operating PE Ratio | 10.75 |