National Grid Plc (NGGTF)
National Grid Market Cap : 83.61B 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 | 12.14B |
| Ameren Corp. | 30.16B |
| Avista Corp. | 3.382B |
| Black Hills Corp. | 5.580B |
| CMS Energy Corp. | 22.65B |
Market Cap Related Metrics
| PE Ratio | 19.25 |
| PS Ratio | 3.492 |
| PEG Ratio | 0.8572 |
| Price | 16.80 |
| Earnings Yield | 5.19% |
| PEGY Ratio | 0.7350 |
| Operating PE Ratio | 10.73 |