Market Cap for Plug Power (PLUG)
According to Plug Power's latest reported financial statements, the company's latest reported market cap is $2.28B USD. 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 .
PLUG
Currently viewingMarket CapSwitch metric
Latest period
$2.28B
YoY change
+73.1%
5Y CAGR
-24.2%
Peak year (2021)
$15.76B
Latest annual
$3.95B
Market Cap history chart for Plug Power (PLUG) from 1999 to 2026
Market Cap history table for Plug Power (PLUG) from 1999 to 2026
| Fiscal year | Period ended | Reported | Market Cap | YoY |
|---|---|---|---|---|
| 2026 | $3.95B | +73.1% | ||
| 2025 | $2.28B | +24.8% | ||
| 2024 | $1.83B | -31.8% | ||
| 2023 | $2.68B | -62.6% | ||
| 2022 | $7.17B | -54.5% | ||
| 2021 | $15.76B | +31.0% | ||
| 2020 | $12.03B | +1505.4% | ||
| 2019 | $749.40M | +176.1% | ||
| 2018 | $271.41M | -46.8% | ||
| 2017 | $510.57M | +135.6% | ||
| 2016 | $216.74M | -41.7% | ||
| 2015 | $371.50M | -22.2% | ||
| 2014 | $477.69M | +303.2% | ||
| 2013 | $118.48M | +589.3% | ||
| 2012 | $17.19M | -55.1% | ||
| 2011 | $38.31M | -21.3% | ||
| 2010 | $48.69M | -46.9% | ||
| 2009 | $91.67M | +0.5% | ||
| 2008 | $91.17M | -73.6% | ||
| 2007 | $345.00M | +3.0% | ||
| 2006 | $334.93M | -16.8% | ||
| 2005 | $402.52M | -9.9% | ||
| 2004 | $446.80M | +2.5% | ||
| 2003 | $436.06M | +91.8% | ||
| 2002 | $227.40M | -44.5% | ||
| 2001 | $409.38M | -35.6% | ||
| 2000 | $636.09M | -14.3% | ||
| 1999 | $742.49M | — |
Market Cap values are taken from Plug Power's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
The 2026 reading of Plug Power (PLUG) market cap is $3.95B – surged 73.1% year-over-year.
Plug Power market cap compound annual growth for the 2021–2026 (5 years) window is -24.2%, sustaining 2 straight years of year-over-year growth.
Between 2021 and 2026, Plug Power market cap plunged 74.9%, falling from $15.76B to $3.95B.
Across the available history, market cap reached its high of $15.76B in 2021 and its low of $17.19M in 2012.
Among 8 Industrials peers, Plug Power (PLUG) ranks 9th; the peer median for market cap is $171.07B.
Plug Power Market Cap by Year
Plug Power Market Cap 2026: $3.95B
Plug Power market cap in 2026 was $3.95B, surged 73.1% from 2025.
Plug Power Market Cap 2025: $2.28B
Plug Power market cap in 2025 was $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
Plug Power market cap in 2023 was $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 — Market Cap
Companies in the same sector as Plug Power, ranked by their latest market cap.
| Company | Market Cap | Sector |
|---|---|---|
| Caterpillar Inc. (CAT) | $380.54B | Industrials |
| GE Aerospace (GE) | $302.16B | Industrials |
| RTX Corporation (RTX) | $236.58B | Industrials |
| The Boeing Company (BA) | $181.88B | Industrials |
| Eaton Corporation plc (ETN) | $160.26B | Industrials |
| Union Pacific Corporation (UNP) | $158.96B | Industrials |
| Deere & Company (DE) | $152.30B | Industrials |
| Honeywell International Inc. (HON) | $134.92B | Industrials |
Frequently asked questions
What is Plug Power's market cap?
- Latest reported market cap for Plug Power (PLUG) is $2.28B (period ending December 31, 2025).
How has Plug Power market cap changed year-over-year?
- Plug Power (PLUG) market cap changed +73.1% year-over-year on the latest annual filing.
What is the long-term growth rate of Plug Power market cap?
- Plug Power (PLUG) market cap compound annual growth rate is -24.2% over the most recent 5 years available.
When did Plug Power market cap hit its highest annual value?
- Plug Power market cap reached its highest annual value of $15.76B in 2021.
What was Plug Power market cap in 2025?
- Plug Power (PLUG) market cap in 2025 was $2.28B.
What was Plug Power market cap in 2026?
- Plug Power (PLUG) market cap in 2026 was $3.95B.
Metrics overview
Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.
Explore more
PLUG Overview
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PLUG Revenue Counter
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Loses −$51.74 per second. See per minute, hour, and day.
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PLUG Buybacks
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PLUG Stock Split History
1 split on record. Dates, ratios, and cumulative multiple.