PLUGPlug Power Inc.

$1.38-60% 1Y

Is the business good?

Mixed

The checks split: nothing decisive, though margins compressing.

1 to watch, 1 neutral, 2 without data
Fundamental health (F-score)4 / 9SEC EDGAR · Dec 31, 2025

Mixed fundamental signals. Nine pass/fail tests of year-over-year health from the filings.

Margin direction, 3 years−64.6 ptsderived

Operating margin has narrowed over the past few years, profitability per dollar of sales is eroding.

Where this answer is blind. The F-score rewards improvement, so an already-elite company can score mid-pack.

How good a business is PLUG?

Plug Power Inc. spent more than it took in: an operating loss of $1.29B on $744M of revenue, 12 months to Q2 2026.

$1.29B

Operating loss · on $744M of revenue · 12 months to Q2 2026

Share count, year on year
+23%

Share count, year on year · shareholders own a smaller slice than a year ago

R&D as % of revenue
7.2%

R&D as % of revenue

Gross margin
−19%

Gross margin

Operating margin by fiscal year
YearOperating margin
FY2020−111%
FY2021−87%
FY2022−97%
FY2023−151%
FY2024−321%
FY2025−207%
Details›
Gross margin12 months to Q2 2026
−19%
Operating margin12 months to Q2 2026
−173%
Net margin12 months to Q2 2026
−221%
Free cash flow margin
−70%
R&D as % of revenue
7.2%
Revenue, trailing twelve months
$744M
Free cash flow, trailing twelve months
−$523M
Net income, trailing twelve months
−$1.64B

Margins, capital and share counts from the statements as filed with the SEC; cash conversion is operating cash flow over operating profit after tax.

Customers and suppliers

Who buys from PLUG and who it buys from, as the companies report it.

24%of revenue comes from one customer
Customerswho buys
Supplierswho it buys from

None disclosed.

A company has to disclose every customer behind 10% or more of its revenue. Each share comes from the latest annual report of the company that states it and shows on both companies’ pages; PLUG’s own figures are from its FY2025 10-K. Smaller customers and suppliers go unreported.

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