PE Ratio Chart

View PE Ratio for IONS.
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Historical PE Ratio Data

View and export this data back to 2009. Start Trial.
Date Value
December 30, 2020 102.51
December 29, 2020 102.20
December 28, 2020 105.61
December 24, 2020 106.95
December 23, 2020 108.01
December 22, 2020 105.00
December 21, 2020 99.18
December 18, 2020 97.37
December 17, 2020 91.74
December 16, 2020 89.23
December 15, 2020 92.27
December 14, 2020 85.72
December 11, 2020 82.10
December 10, 2020 83.12
December 09, 2020 83.60
December 08, 2020 87.78
December 07, 2020 90.16
December 04, 2020 91.79
December 03, 2020 91.34
December 02, 2020 91.95
December 01, 2020 91.61
November 30, 2020 90.56
November 27, 2020 91.63
November 25, 2020 90.04
November 24, 2020 89.68
Date Value
November 23, 2020 90.09
November 20, 2020 88.06
November 19, 2020 90.41
November 18, 2020 90.82
November 17, 2020 94.10
November 16, 2020 93.46
November 13, 2020 92.42
November 12, 2020 88.26
November 11, 2020 88.19
November 10, 2020 89.93
November 09, 2020 89.78
November 06, 2020 87.15
November 05, 2020 87.31
November 04, 2020 85.32
November 03, 2020 84.23
November 02, 2020 83.82
October 30, 2020 84.14
October 29, 2020 83.96
October 28, 2020 82.11
October 27, 2020 84.19
October 26, 2020 84.25
October 23, 2020 84.84
October 22, 2020 84.57
October 21, 2020 83.08
October 20, 2020 84.95

Price to Earnings Ratio (PE Ratio) Definition

The Price to Earnings Ratio (PE Ratio) is calculated by taking the stock price / EPS Diluted (TTM). This metric is considered a valuation metric that confirms whether the earnings of a company justifies the stock price. There isn't necesarily an optimum PE ratio, since different industries will have different ranges of PE Ratios. Because of this, PE Ratio is great to evaluate from a relative standpoint with other similar companies.

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PE Ratio Range, Past 5 Years

View PE Ratio Range, Past 5 Years
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PE Ratio Related Metrics

PS Ratio 11.57
PEG Ratio -0.2040
Price to Book Value 23.36
Price 62.03
Earnings Yield -5.60%
Market Cap 10.27B
PEGY Ratio -0.2040