PE Ratio Chart

View PE Ratio for ONT.
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Sep '18
Jan '19
May '19
 
285.00
270.00
255.00
240.00
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Historical PE Ratio Data

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Date Value
June 29, 2026 1259.88
June 26, 2026 1237.04
June 25, 2026 1122.84
June 24, 2026 1098.77
June 23, 2026 1037.04
June 22, 2026 1006.79
June 18, 2026 1061.11
June 17, 2026 1051.85
June 16, 2026 1045.06
June 15, 2026 1025.31
June 12, 2026 1054.94
June 11, 2026 1052.47
June 10, 2026 1037.65
June 09, 2026 1047.53
June 08, 2026 1030.25
June 05, 2026 1058.64
June 04, 2026 1079.63
June 03, 2026 1018.52
June 02, 2026 969.75
June 01, 2026 1006.79
May 29, 2026 988.27
May 28, 2026 966.67
May 27, 2026 952.47
May 26, 2026 981.48
May 22, 2026 1026.54
Date Value
May 21, 2026 972.84
May 20, 2026 965.43
May 19, 2026 895.06
May 18, 2026 948.77
May 15, 2026 945.06
May 14, 2026 937.65
May 13, 2026 958.64
May 12, 2026 962.96
May 11, 2026 982.72
May 08, 2026 998.77
May 07, 2026 1077.16
May 06, 2026 1358.02
May 05, 2026 1362.35
May 04, 2026 1316.67
May 01, 2026 1366.67
April 30, 2026 1299.38
April 29, 2026 1256.79
April 28, 2026 1288.89
April 27, 2026 1298.77
April 24, 2026 1305.56
April 23, 2026 1290.12
April 22, 2026 1283.33
April 21, 2026 1269.75
April 20, 2026 1317.28
April 17, 2026 1335.19

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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