ON Semiconductor (BSP:O2NS34) Shiller PE Ratio: (As of Jul. 21, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

BSP:O2NS34 ON Semiconductor Corp BSP:O2NS34
52 GF Score
Price R$56.09
GF Value R$39.53
Valuation Significantly Overvalued
! 4 Warning Signs
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What is ON Semiconductor Shiller PE Ratio?

Note: If the price history is too short, we do not calculate current Shiller PE for this stock. All the historical data is shown as the company's primary share's data instead.

Shiller PE for Stocks: The True Measure of Stock Valuation


ON Semiconductor  (BSP:O2NS34) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


ON Semiconductor Shiller PE Ratio Related Terms


ON Semiconductor Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for ON Semiconductor's Shiller PE Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

ON Semiconductor Shiller PE Ratio Chart

ON Semiconductor Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 76.00 44.35 44.03 27.92 23.71

ON Semiconductor Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Shiller PE Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 18.88 23.84 21.80 23.71 26.84

BSP:O2NS34 vs CBRS, MTSI, GFS: Shiller PE Ratio Comparison

For the Semiconductors subindustry, ON Semiconductor's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


ON Semiconductor Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, ON Semiconductor's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where ON Semiconductor's Shiller PE Ratio falls into.


BSP:O2NS34
52GF Score
ON Semiconductor Corp BSP:O2NS34
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ON Semiconductor Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

ON Semiconductor's E10 for the quarter that ended in Mar. 2026 is calculated as:

For example, ON Semiconductor's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=-0.418/330.2130*330.2130
=-0.418

Current CPI (Mar. 2026) = 330.2130.

ON Semiconductor Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201606 0.205 241.018 0.281
201609 0.065 241.428 0.089
201612 0.872 241.432 1.193
201703 0.563 243.801 0.763
201706 0.725 244.955 0.977
201709 0.783 246.819 1.048
201712 4.020 246.524 5.385
201803 1.016 249.554 1.344
201806 1.320 251.989 1.730
201809 1.561 252.439 2.042
201812 1.515 251.233 1.991
201903 1.037 254.202 1.347
201906 0.925 256.143 1.192
201909 -0.618 256.759 -0.795
201912 0.575 256.974 0.739
202003 -0.147 258.115 -0.188
202006 -0.018 257.797 -0.023
202009 2.052 260.280 2.603
202012 1.080 260.474 1.369
202103 1.127 264.877 1.405
202106 2.112 271.696 2.567
202109 3.695 274.310 4.448
202112 5.429 278.802 6.430
202203 5.872 287.504 6.744
202206 5.149 296.311 5.738
202209 3.671 296.808 4.084
202212 7.081 296.797 7.878
202303 5.365 301.836 5.869
202306 6.261 305.109 6.776
202309 6.371 307.789 6.835
202312 6.272 306.746 6.752
202403 5.179 312.332 5.475
202406 4.201 314.175 4.415
202409 5.150 315.301 5.394
202412 5.369 315.605 5.618
202503 -6.622 319.799 -6.838
202506 2.274 322.561 2.328
202509 3.379 324.800 3.435
202512 2.455 324.054 2.502
202603 -0.418 330.213 -0.418

Add all the adjusted EPS together and divide 10 will get our E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is ON Semiconductor (BSP:O2NS34) Overvalued in 2026?

Based on GuruFocus' analysis, ON Semiconductor stock appears to be overvalued. The current stock price of R$56.09 is trading 41.9% above its estimated GF Value™ of R$39.53. GuruFocus considers ON Semiconductor to be Significantly Overvalued.

Key valuation signals for BSP:O2NS34:

  • Shiller PE Ratio:
  • GF Value™: R$39.53 vs. price of R$56.09 (41.9% above fair value)
  • GF Score™: 52/100 with 4 warning signs

No single metric tells the full story. See the BSP:O2NS34 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


ON Semiconductor Business Description

Address 5701 North Pima Road, Scottsdale, AZ, USA, 85250
Onsemi is a supplier of power semiconductors and sensors focused on the automotive and industrial markets. Onsemi is the second-largest power chipmaker in the world and the largest supplier of image sensors to the automotive market. While the firm used to be highly vertically integrated, it now pursues a hybrid manufacturing strategy for flexible capacity. Onsemi is pivoting to focus on emerging applications like electric vehicles, autonomous vehicles, industrial automation, and renewable energy.
52GF Score

Get the complete analysis for BSP:O2NS34

Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

R$56.09
Price
R$39.53
GF Value