P/E ratio history for Ballard Power Systems Inc.
| Date | Price-to-Earnings ratio | 
|---|---|
| 31 Dec 2023 | -6.22 | 
| 31 Dec 2022 | -8.23 | 
| 31 Dec 2021 | -32.42 | 
| 31 Dec 2020 | -117.54 | 
| 31 Dec 2019 | -42.81 | 
| 31 Dec 2018 | -16.26 | 
| 31 Dec 2017 | -96.37 | 
| 31 Dec 2016 | -12.44 | 
| 31 Dec 2015 | -37.66 | 
| 31 Dec 2014 | -9.05 | 
| 31 Dec 2013 | -7.59 | 
| 31 Dec 2012 | -1.27 | 
| 31 Dec 2011 | -2.73 | 
| 31 Dec 2010 | -3.61 | 
| 31 Dec 2009 | -48.52 | 
| 31 Dec 2008 | 2.82 | 
| 31 Dec 2007 | -10.52 | 
| 31 Dec 2006 | -3.56 | 
| 31 Dec 2005 | -5.75 | 
| 31 Dec 2004 | -4.58 | 
| 31 Dec 2003 | -11.11 | 
| 31 Dec 2002 | -7.90 | 
| 31 Dec 2001 | -28.10 | 
| 31 Dec 2000 | -87.21 | 
| 31 Dec 1999 | -45.40 | 
| 31 Dec 1998 | 3,850.00 | 
| 31 Dec 1997 | 725.00 | 
| 31 Dec 1996 | -67.92 | 
| 31 Dec 1995 | -22.55 | 
| 31 Dec 1994 | -26.79 | 
| 31 Dec 1993 | -35.55 | 
