Plug Power, Inc. (PLUG) Stock

About Plug Power, Inc.

Plug Power, Inc. (PLUG) stock trades at $1.38 with a market capitalization of $1.93B. The stock is valued at a negative price-to-earnings (P/E) ratio of -1.43, reflecting a net loss over the last twelve months, price-to-book of 4.64, price-to-sales of 3.64. Over the past 52 weeks the stock has ranged between $1.37 and $4.58, and currently trades 69.9% below its 52-week high.

On profitability, Plug Power, Inc. generates a return on equity (ROE) of -176.19% (negative, reflecting a net loss), return on capital employed of -30.73%, an operating margin of -63.56%, a net profit margin of -220.59%.

Plug Power, Inc. by the numbers, 2016–2025

Between 2016 and 2025 Plug Power, Inc. reported revenue of $86.0M rising to $710.0M, a change of +725.6% across 10 years. Compounded, revenue has grown —% a year over five years, 0.4% over three, 12.9% over the last twelve months. Net profit fell to $-1.6B.

Operating margin went from -60.0% in 2016 to -95.7% in 2025, a fall of 35.8 percentage points. The most recent net margin is -220.59%. On a trailing twelve-month basis to Jun '26, revenue is $744.0M and net profit $-1.6B.

Borrowings rose from $68.0M to $997.0M, cash from operations was $-536.0M in the latest year, positive in 0 of the last 10.

Return on equity has averaged -72.7% over five years, and was -166.9% in the most recent year.

The share price itself has compounded at -30.5% a year over five years, -21.9% over three, 295.6% over the last year. Past price movement is history, not a forecast.

Figures are as reported and in the company's own reporting currency. They describe what has already happened and carry no implication about what follows.

Plug Power, Inc. (PLUG) — frequently asked questions