Onto Innovation (STU:NNM) E10: €2.16 (As of Mar. 2026)

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STU:NNM Onto Innovation Inc STU:NNM
82 GF Score
Price €267.80
GF Value €169.97
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Onto Innovation E10?

Onto Innovation STU:NNM -5.04% 82 E10 is €2.16 as of Mar. 2026. GuruFocus rates STU:NNM with a GF Score™ of 82/100 and a GF Value™ of €169.97 (Significantly Overvalued). The stock has 6 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Onto Innovation's adjusted earnings per share data for the three months ended in Mar. 2026 was €0.580. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €2.16 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Onto Innovation's average E10 Growth Rate was 5.50% per year. During the past 3 years, the average E10 Growth Rate was 19.00% per year. During the past 5 years, the average E10 Growth Rate was 22.60% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Onto Innovation was 24.50% per year. The lowest was -19.40% per year. And the median was 6.25% per year.

As of today (2026-07-14), Onto Innovation's current stock price is €267.80. Onto Innovation's E10 for the quarter that ended in Mar. 2026 was €2.16. Onto Innovation's Shiller PE Ratio of today is 123.98.

During the past 13 years, the highest Shiller PE Ratio of Onto Innovation was 133.50. The lowest was 22.43. And the median was 59.62.


Onto Innovation  (STU:NNM) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, 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 P/E is also called PE10.

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

Onto Innovation's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=267.80/2.16
=123.98

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Onto Innovation was 133.50. The lowest was 22.43. And the median was 59.62.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Onto Innovation E10 Related Terms


Onto Innovation E10 Historical Data

* Premium members only.

The historical data trend for Onto Innovation's E10 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.

Onto Innovation E10 Chart

Onto Innovation Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.01 1.36 1.59 2.17 2.09

Onto Innovation Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
E10 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 2.17 2.07 2.11 2.09 2.16

STU:NNM vs NVMI, AMKR, FORM: E10 Comparison

For the Semiconductor Equipment & Materials subindustry, Onto Innovation'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.


Onto Innovation Shiller PE Ratio vs Semiconductors Industry

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

* The bar in red indicates where Onto Innovation's Shiller PE Ratio falls into.


STU:NNM
82GF Score
Onto Innovation Inc STU:NNM
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Onto Innovation E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get 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.

For example, Onto Innovation'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)
=0.58/330.2130*330.2130
=0.580

Current CPI (Mar. 2026) = 330.2130.

Onto Innovation Quarterly Data

per share eps CPI Adj_EPS
201606 0.265 241.018 0.363
201609 0.331 241.428 0.453
201612 0.223 241.432 0.305
201703 0.255 243.801 0.345
201706 0.320 244.955 0.431
201709 0.562 246.819 0.752
201712 -0.031 246.524 -0.042
201803 0.473 249.554 0.626
201806 0.478 251.989 0.626
201809 0.234 252.439 0.306
201812 0.283 251.233 0.372
201903 0.266 254.202 0.346
201906 0.195 256.143 0.251
201909 0.236 256.759 0.304
201912 -0.657 256.974 -0.844
202003 -0.081 258.115 -0.104
202006 0.133 257.797 0.170
202009 0.136 260.280 0.173
202012 0.329 260.474 0.417
202103 0.412 264.877 0.514
202106 0.589 271.696 0.716
202109 0.621 274.310 0.748
202112 0.832 278.802 0.985
202203 0.972 287.504 1.116
202206 0.974 296.311 1.085
202209 1.061 296.808 1.180
202212 1.265 296.797 1.407
202303 0.551 301.836 0.603
202306 0.489 305.109 0.529
202309 0.684 307.789 0.734
202312 0.559 306.746 0.602
202403 0.865 312.332 0.915
202406 0.994 314.175 1.045
202409 0.964 315.301 1.010
202412 0.936 315.605 0.979
202503 1.202 319.799 1.241
202506 0.598 322.561 0.612
202509 0.486 324.800 0.494
202512 0.179 324.054 0.182
202603 0.580 330.213 0.580

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of €2.16 mean?
Onto Innovation (STU:NNM) has a E10 of €2.16 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Onto Innovation and its competitors.
Is Onto Innovation's E10 too high?
Onto Innovation's current E10 is €2.16. Overall, Onto Innovation has a GF Score™ of 82/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Onto Innovation's E10 compare to NVMI and AMKR?
Onto Innovation's E10 of €2.16 can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Semiconductors company?
A good E10 depends on the Semiconductors industry context. However, E10 should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Onto Innovation and its competitors. Onto Innovation's current E10 is €2.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Onto Innovation stock overvalued right now?
Based on GuruFocus' analysis, Onto Innovation (STU:NNM) is currently considered Significantly Overvalued. The stock's GF Value™ is €169.97, compared to a current price of €267.80 — trading 57.6% above its estimated fair value. The current E10 is €2.16. Onto Innovation's overall GF Score™ is 82/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Onto Innovation (STU:NNM), the current E10 is €2.16 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Onto Innovation (STU:NNM) Overvalued in 2026?

Based on GuruFocus' analysis, Onto Innovation stock appears to be overvalued. The current stock price of €267.80 is trading 57.6% above its estimated GF Value™ of €169.97. GuruFocus considers Onto Innovation to be Significantly Overvalued.

Key valuation signals for STU:NNM:

  • E10: €2.16
  • GF Value™: €169.97 vs. price of €267.80 (57.6% above fair value)
  • GF Score™: 82/100 with 6 warning signs

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


Onto Innovation Business Description

Other Exchanges ONTO:USAONTO:Mexico
Address 16 Jonspin Road, Wilmington, MA, USA, 01887
Onto Innovation Inc is engaged in the design, development, manufacture, and support of high-performance control metrology, defect inspection, lithography, and data analysis systems used by microelectronics device manufacturers. The Company and its subsidiaries currently operate in a single operating segment. The company mainly operates in the United States, Southeast Asia, China, Japan, and Europe, with Taiwan and South Korea the sources of total revenue.
82GF Score

Get the complete analysis for STU:NNM

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€267.80
Price
€169.97
GF Value