ONTO (Onto Innovation) E10: $2.50 (As of Mar. 2026)


ONTO Onto Innovation Inc ONTO
85 GF Score
Price $342.89
GF Value $189.26
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Onto Innovation E10?

Onto Innovation ONTO +6.41% 85 E10 is $2.50 as of Mar. 2026. GuruFocus rates ONTO with a GF Score™ of 85/100 and a GF Value™ of $189.26 (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 $0.670. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $2.50 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 (2026-06-25), Onto Innovation's current stock price is $342.89. Onto Innovation's E10 for the quarter that ended in Mar. 2026 was $2.50. Onto Innovation's Shiller PE Ratio of today is 137.16.

During the past 13 years, the highest Shiller PE Ratio of Onto Innovation was 140.85. The lowest was 22.43. And the median was 59.13.


Onto Innovation  (NYSE:ONTO) 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
=342.89/2.50
=137.16

* 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 140.85. The lowest was 22.43. And the median was 59.13.


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 1.15 1.46 1.74 2.22 2.46

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 2.37 2.43 2.46 2.46 2.50

ONTO vs NVMI, FORM, AMKR: 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.


ONTO
85GF Score
Onto Innovation Inc ONTO
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)
=0.67/330.2130*330.2130
=0.670

Current CPI (Mar. 2026) = 330.2130.

Onto Innovation Quarterly Data

per share eps CPI Adj_EPS
201606 0.298 241.018 0.408
201609 0.372 241.428 0.509
201612 0.236 241.432 0.323
201703 0.273 243.801 0.370
201706 0.360 244.955 0.485
201709 0.669 246.819 0.895
201712 -0.037 246.524 -0.050
201803 0.583 249.554 0.771
201806 0.558 251.989 0.731
201809 0.273 252.439 0.357
201812 0.322 251.233 0.423
201903 0.300 254.202 0.390
201906 0.220 256.143 0.284
201909 0.260 256.759 0.334
201912 -0.730 256.974 -0.938
202003 -0.090 258.115 -0.115
202006 0.150 257.797 0.192
202009 0.160 260.280 0.203
202012 0.400 260.474 0.507
202103 0.490 264.877 0.611
202106 0.710 271.696 0.863
202109 0.730 274.310 0.879
202112 0.940 278.802 1.113
202203 1.070 287.504 1.229
202206 1.030 296.311 1.148
202209 1.050 296.808 1.168
202212 1.340 296.797 1.491
202303 0.590 301.836 0.645
202306 0.530 305.109 0.574
202309 0.730 307.789 0.783
202312 0.610 306.746 0.657
202403 0.940 312.332 0.994
202406 1.070 314.175 1.125
202409 1.070 315.301 1.121
202412 0.980 315.605 1.025
202503 1.300 319.799 1.342
202506 0.690 322.561 0.706
202509 0.570 324.800 0.579
202512 0.210 324.054 0.214
202603 0.670 330.213 0.670

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 $2.50 mean?
Onto Innovation (ONTO) has a E10 of $2.50 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 $2.50. Overall, Onto Innovation has a GF Score™ of 85/100 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 FORM?
Onto Innovation's E10 of $2.50 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 $2.50. 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 (ONTO) is currently considered Significantly Overvalued. The stock's GF Value™ is $189.26, compared to a current price of $342.89 — trading 81.2% above its estimated fair value. The current E10 is $2.50. Onto Innovation's overall GF Score™ is 85/100 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 (ONTO), the current E10 is $2.50 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 (ONTO) Overvalued in 2026?

Based on GuruFocus' analysis, Onto Innovation stock appears to be overvalued. The current stock price of $342.89 is trading 81.2% above its estimated GF Value™ of $189.26. GuruFocus considers Onto Innovation to be Significantly Overvalued.

Key valuation signals for ONTO:

  • E10: $2.50
  • GF Value™: $189.26 vs. price of $342.89 (81.2% above fair value)
  • GF Score™: 85/100 with 6 warning signs

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


Onto Innovation Business Description

Other Exchanges ONTO:MexicoNNM:Germany
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.
85GF Score

Get the complete analysis for ONTO

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

$342.89
Price
$189.26
GF Value