P/E ratio history for BIOLASE, Inc.
| Date | Price-to-Earnings ratio | 
|---|---|
| 31 Dec 2023 | -0.07 | 
| 31 Dec 2022 | -0.16 | 
| 31 Dec 2021 | -3.57 | 
| 31 Dec 2020 | -1.53 | 
| 31 Dec 2019 | -0.71 | 
| 31 Dec 2018 | -0.95 | 
| 31 Dec 2017 | -1.88 | 
| 31 Dec 2016 | -5.53 | 
| 31 Dec 2015 | -2.41 | 
| 31 Dec 2014 | -6.25 | 
| 31 Dec 2013 | -8.56 | 
| 31 Dec 2012 | -20.28 | 
| 31 Dec 2011 | -17.89 | 
| 31 Dec 2010 | -3.85 | 
| 31 Dec 2009 | -16.76 | 
| 31 Dec 2008 | -4.22 | 
| 31 Dec 2007 | -8.26 | 
| 31 Dec 2006 | -46.80 | 
| 31 Dec 2005 | -11.24 | 
| 31 Dec 2004 | -11.60 | 
| 31 Dec 2003 | 19.54 | 
| 31 Dec 2002 | 44.44 | 
| 31 Dec 2001 | -290.61 | 
| 31 Dec 2000 | -9.27 | 
| 31 Dec 1999 | -10.33 | 
| 31 Dec 1998 | -3.32 | 
| 31 Dec 1997 | -16.91 | 
| 31 Dec 1996 | -19.70 | 
| 31 Dec 1995 | -21.76 | 
| 31 Dec 1994 | -2.90 | 
| 31 Dec 1993 | -3.28 | 
| 31 Dec 1992 | -13.39 | 
