Plug Power, Inc. (PLUG)
Plug Power Market Cap : 4.449B for June 8, 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
| FuelCell Energy, Inc. | 815.44M |
| Bloom Energy Corp. | 72.05B |
| EnerSys | 8.323B |
| Energous Corp. | 141.82M |
| Nextpower, Inc. | 18.78B |
Market Cap Related Metrics
| PS Ratio | 5.464 |
| Price to Book Value | 5.933 |
| Price | 3.19 |
| Earnings Yield | -40.68% |