Plug Power Inc (PLUG) stock

PLUGNasdaqElectrical Industrial ApparatusFiscal year ends December 31

Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 9, 2026Score 6/3030% below fair value

$1.35−0.01 (-0.73%)

Close on Nov 11, 2026Market cap $1.89BP/E –Yield –

Plug Power price to book ratio

The price-to-book ratio is market cap divided by shareholders' equity.

Plug Power's price to book ratio was 3.1× on Nov 11, 2026, against 1.5× a year earlier. Over the last 5 years it ranged from 0.4× to 6.6×, with a median of 1.5×.

Price to Book Ratio at the end of each year

Period	Period end	Value	Change (pts)
2026	Nov 11, 2026	3.1×	+1.6
2025	Dec 31, 2025	1.4×	+0.9
2024	Dec 31, 2024	0.5×	−0.3
2023	Dec 29, 2023	0.8×	−0.9
2022	Dec 30, 2022	1.7×	−0.4
2021	Dec 31, 2021	2.1×	−42.2
2020	Dec 31, 2020	44.4×	+23.7
2019	Jan 31, 2019	20.7×	+2.0
2018	Dec 31, 2018	18.7×	+13.2
2017	Dec 29, 2017	5.6×	+3.3
2016	Dec 30, 2016	2.3×	−0.2
2015	Dec 31, 2015	2.5×	−0.2
2014	Dec 31, 2014	2.7×	−39.2
2013	Dec 31, 2013	41.9×	+41.2
2012	Dec 31, 2012	0.7×	–