Plug Power Inc. (PLUG)
NASDAQ: PLUG · Real-Time Price · USD
2.110
+0.020 (0.96%)
At close: Sep 22, 2026, 4:00 PM EDT
2.111
+0.001 (0.05%)
After-hours: Sep 22, 2026, 6:41 PM EDT
Plug Power Market Cap
Plug Power has a market cap or net worth of $2.95 billion as of September 22, 2026. Its market cap has increased by 17.10% in one year.
Market Cap
2.95B
Enterprise Value
3.81B
1-Year Change
17.10%
Ranking
Category
Stock Price
$2.11
ChartMarket Cap Chart
Since October 29, 1999, Plug Power's market cap has increased from $675.30M to $2.95B, an increase of 336.56%. That is a compound annual growth rate of 5.63%.
| Date | Market Cap | % Change |
|---|---|---|
| Sep 22, 2026 | 2.95B | 7.55% |
| Dec 31, 2025 | 2.74B | 41.24% |
| Dec 31, 2024 | 1.94B | -28.77% |
| Dec 29, 2023 | 2.72B | -62.21% |
| Dec 30, 2022 | 7.21B | -55.68% |
| Dec 31, 2021 | 16.27B | 15.45% |
| Dec 31, 2020 | 14.09B | 1,608.23% |
| Dec 31, 2019 | 825.00M | 185.07% |
| Dec 31, 2018 | 289.40M | -46.33% |
| Dec 29, 2017 | 539.20M | 149.05% |
| Dec 30, 2016 | 216.50M | -43.00% |
| Dec 31, 2015 | 379.80M | -26.88% |
| Dec 31, 2014 | 519.40M | 226.67% |
| Dec 31, 2013 | 159.00M | 732.46% |
| Dec 31, 2012 | 19.10M | -58.84% |
| Dec 30, 2011 | 46.40M | -5.11% |
| Dec 31, 2010 | 48.90M | -46.85% |
| Dec 31, 2009 | 92.00M | 2.00% |
| Dec 31, 2008 | 90.20M | -74.00% |
| Dec 31, 2007 | 346.90M | 2.97% |
| Dec 29, 2006 | 336.90M | -23.43% |
| Dec 30, 2005 | 440.00M | -1.70% |
| Dec 31, 2004 | 447.60M | 1.24% |
| Dec 31, 2003 | 442.10M | 93.56% |
| Dec 31, 2002 | 228.40M | -47.87% |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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