P/E ratio history for BlackBerry Limited
| Date | Price-to-Earnings ratio |
|---|---|
| 29 Feb 2024 | -12.50 |
| 28 Feb 2023 | -3.06 |
| 28 Feb 2022 | 326.67 |
| 28 Feb 2021 | -5.55 |
| 29 Feb 2020 | -18.84 |
| 28 Feb 2019 | 57.67 |
| 28 Feb 2018 | 15.97 |
| 28 Feb 2017 | -3.03 |
| 29 Feb 2016 | -19.76 |
| 28 Feb 2015 | -18.64 |
| 28 Feb 2014 | -0.89 |
| 28 Feb 2013 | -10.84 |
| 29 Feb 2012 | 6.38 |
| 28 Feb 2011 | 10.40 |
| 28 Feb 2010 | 16.21 |
| 28 Feb 2009 | 11.92 |
| 29 Feb 2008 | 44.77 |
| 28 Feb 2007 | 41.04 |
| 28 Feb 2006 | 34.97 |
| 28 Feb 2005 | 24.68 |
| 29 Feb 2004 | 40.51 |
| 28 Feb 2003 | -6.59 |
| 28 Feb 2002 | -63.51 |
| 28 Feb 2001 | -483.59 |
| 29 Feb 2000 | 845.31 |
| 28 Feb 1999 | 86.38 |
| 28 Feb 1998 | 1,487.24 |
| 28 Feb 1997 | 2,992.15 |
