Current
$2.64B
5-Year Average
$6.16B
All-Time High
$27.2B
All-Time Low
$4.48M
Market cap daily chart for Plug Power (PLUG)
Aug 2, 2021 – Jul 29, 2026 · 1,253 trading days
Market Cap growth chart for Plug Power (PLUG) from 2017 to 2026
Latest: +15.7%
Market Cap history table for Plug Power (PLUG) from 1999 to 2026
| 2026 | $2.64B | +15.7% | +$358M | ||
| 2025 | $2.28B | +24.8% | +$454M | ||
| 2024 | $1.83B | -31.8% | -$851M | ||
| 2023 | $2.68B | -62.6% | -$4.49B | ||
| 2022 | $7.17B | -54.5% | -$8.59B | ||
| 2021 | $15.8B | +31.0% | +$3.73B | ||
| 2020 | $12B | +1505.4% | +$11.3B | ||
| 2019 | $749M | +176.1% | +$478M | ||
| 2018 | $271M | -46.8% | -$239M | ||
| 2017 | $511M | +135.6% | +$294M | ||
| 2016 | $217M | -41.7% | -$155M | ||
| 2015 | $372M | -22.2% | -$106M | ||
| 2014 | $478M | +303.2% | +$359M | ||
| 2013 | $118M | +589.3% | +$101M | ||
| 2012 | $17.2M | -55.1% | -$21.1M | ||
| 2011 | $38.3M | -21.3% | -$10.4M | ||
| 2010 | $48.7M | -46.9% | -$43M | ||
| 2009 | $91.7M | +0.5% | +$497K | ||
| 2008 | $91.2M | -73.6% | -$254M | ||
| 2007 | $345M | +3.0% | +$10.1M | ||
| 2006 | $335M | -16.8% | -$67.6M | ||
| 2005 | $403M | -9.9% | -$44.3M | ||
| 2004 | $447M | +2.5% | +$10.7M | ||
| 2003 | $436M | +91.8% | +$209M | ||
| 2002 | $227M | -44.5% | -$182M | ||
| 2001 | $409M | -35.6% | -$227M | ||
| 2000 | $636M | -14.3% | -$106M | ||
| 1999 | $742M | — | — |
- 2026$2.64B+15.7%
- 2025$2.28B+24.8%
- 2024$1.83B-31.8%
- 2023$2.68B-62.6%
- 2022$7.17B-54.5%
- 2021$15.8B+31.0%
- 2020$12B+1505.4%
- 2019$749M+176.1%
- 2018$271M-46.8%
- 2017$511M+135.6%
- 2016$217M-41.7%
- 2015$372M-22.2%
- 2014$478M+303.2%
- 2013$118M+589.3%
- 2012$17.2M-55.1%
- 2011$38.3M-21.3%
- 2010$48.7M-46.9%
- 2009$91.7M+0.5%
- 2008$91.2M-73.6%
- 2007$345M+3.0%
- 2006$335M-16.8%
- 2005$403M-9.9%
- 2004$447M+2.5%
- 2003$436M+91.8%
- 2002$227M-44.5%
- 2001$409M-35.6%
- 2000$636M-14.3%
- 1999$742M—
Market Cap values are taken from Plug Power's reported income statements (share counts) and end-of-day prices (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Market Cap at Plug Power (PLUG)
According to Plug Power's latest reported financial statements, the company's latest reported market cap is $3.14B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
The 2026 reading of Plug Power (PLUG) market cap is $2.64B – grew 15.7% year-over-year.
Plug Power market cap compound annual growth for the 2021–2026 (5 years) window is -30.0%, sustaining 2 straight years of year-over-year growth.
Between 2021 and 2026, Plug Power market cap plunged 83.2%, falling from $15.8B to $2.64B.
Across the available history, market cap reached its high of $15.8B in 2021 and its low of $17.2M in 2012.
Plug Power Market Cap by Year
Plug Power Market Cap 2026: $2.64B
Plug Power posted market cap of $2.64B in 2026, grew 15.7% from 2025.
Plug Power Market Cap 2025: $2.28B
In 2025, Plug Power reported market cap of $2.28B, grew 24.8% from 2024.
Plug Power Market Cap 2024: $1.83B
Plug Power market cap in 2024 was $1.83B, plunged 31.8% below 2023.
Plug Power Market Cap 2023: $2.68B
2023's market cap for Plug Power came in at $2.68B, plunged 62.6% below 2022.
Plug Power Market Cap 2022: $7.17B
Plug Power market cap in 2022 was $7.17B.
See more financial history for Plug Power (PLUG).
Sector peers by Market Cap
Industrials peers of Plug Power (PLUG), ranked by their latest market cap
| $1.47T | |
| $364B | |
| $361B | |
| $290B | |
| $174B | |
| $169B | |
| $165B | |
| $141B |
- $1.47T
- $364B
- $361B
- $290B
- $174B
- $169B
- $165B
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Plug Power (PLUG) Key Financials
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