Plug Power Inc. (PLUG)
NASDAQ: PLUG · Real-Time Price · USD
1.485
+0.035 (2.41%)
At close: Oct 15, 2026, 4:00 PM EDT
1.480
-0.005 (-0.34%)
After-hours: Oct 15, 2026, 7:59 PM EDT
Plug Power Market Cap
Plug Power has a market cap or net worth of $2.07 billion as of October 15, 2026. It is the 6,493rd most valuable company in the world and the 1,742nd biggest in the United States. Its market cap has decreased by 55.64% in one year.
Market Cap
2.07B
Enterprise Value
2.94B
1-Year Change
-55.64%
Global Rank
Country Rank
#1,742 United States
Category
ChartMarket Cap Chart
Since October 29, 1999, Plug Power's market cap has increased from $675.30M to $2.07B, an increase of 207.25%. That is a compound annual growth rate of 4.25%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 15, 2026 | 2.07B | -24.31% |
| 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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