Ionis Pharmaceuticals, Inc.
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Ionis Pharmaceuticals, Inc. (IONS)

Price-to-Earnings Ratio History

P/E Ratio (TTM)

-13.99

Financial Fundamentals

IONS • Quarterly Data • 5Y View

Quarterly P/E

QuarterP/E Ratio
1996-03-31-15.00
1996-06-30-16.06
1996-09-30-17.53
1996-12-31-14.03
1997-03-31-11.36
1997-06-30-10.11
1997-09-30-55.66
1997-12-31-7.51
1998-03-31-8.87
1998-06-30-6.58
1998-09-30-71.09
1998-12-31-4.84
1999-03-31-4.89
1999-06-30-4.34
1999-09-30-6.46
1999-12-31-2.54
2000-03-31-6.34
2000-06-30-9.37
2000-09-30-20.44
2000-12-31-6.61
2001-03-31-4.06
2001-06-30-5.44
2001-09-30-16.30
2001-12-31-18.42
2002-03-31-12.71
2002-06-30-5.28
2002-09-30-7.67
2002-12-31-5.74
2003-03-31-2.04
2003-06-30-3.20
2003-09-30-4.08
2003-12-31-3.56
2004-03-31-4.12
2004-06-30-3.10
2004-09-30-2.14
2004-12-31-1.47
2005-03-31-1.88
2005-06-30-2.86
2005-09-30-5.33
2005-12-31-11.97
2006-03-31-9.33
2006-06-30-50.71
2006-09-30-10.91
2006-12-31-15.41
2007-03-31-14.68
2007-06-30-18.12
2007-09-3016.01
2007-12-31-49.24
2008-03-31-55.36
2008-06-30-86.33
2008-09-30250.95
2008-12-31-39.68
2009-03-311.97
2009-06-30-148.25
2009-09-30-30.92
2009-12-31-39.31
2010-03-31-28.01
2010-06-30-9.42
2010-09-30-16.73
2010-12-31-17.96
2011-03-31-11.25
2011-06-30-12.75
2011-09-30-6.29
2011-12-31-8.98
2012-03-31-9.15
2012-06-30-249.08
2012-09-30-9.21
2012-12-31-100.21
2013-03-31-259.26
2013-06-30-76.29
2013-09-30-44.03
2013-12-31-47.64
2014-03-31-40.45
2014-06-30-83.83
2014-09-30-42.87
2014-12-3158.76
2015-03-31-113.26
2015-06-3048.33
2015-09-30-33.68
2015-12-31-26.00
2016-03-31-19.41
2016-06-30-12.37
2016-09-30150.76
2016-12-3156.10
2017-03-31137.75
2017-06-30-511.13
2017-09-30-603.75
2017-12-31571.59
2018-03-31-940.58
2018-06-30-33.23
2018-09-30-377.03
2018-12-315.81
2019-03-3133.36
2019-06-30-2593.61
2019-09-3080.46
2019-12-3111.55
2020-03-31-41.59
2020-06-30-80.12
2020-09-30-67.74
2020-12-31-5.81
2021-03-31-17.61
2021-06-30-17.38
2021-09-30-14.35
2021-12-314.78
2022-03-31-20.12
2022-06-30-12.48
2022-09-30-33.40
2022-12-31-25.57
2023-03-31-10.26
2023-06-30-17.21
2023-09-30-11.03
2023-12-31-196.61
2024-03-31-11.20
2024-06-30-25.94
2024-09-30-10.59
2024-12-31-13.23
2025-03-31-8.15
2025-06-3012.72
2025-10-28-22.99
2025-12-31-13.99

* P/E ratios are calculated using trailing twelve-month (TTM) earnings.