KEYS (Keysight Technologies) E10: $4.39 (As of Apr. 2026)


KEYS Keysight Technologies Inc KEYS
82 GF Score
Price $328.66
GF Value $197.99
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Keysight Technologies E10?

Keysight Technologies KEYS -8.72% 82 E10 is $4.39 as of Apr. 2026. GuruFocus rates KEYS with a GF Score™ of 82/100 and a GF Value™ of $197.99 (Significantly Overvalued). The stock has 5 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.

Keysight Technologies's adjusted earnings per share data for the three months ended in Apr. 2026 was $2.020. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $4.39 for the trailing ten years ended in Apr. 2026.

During the past 12 months, Keysight Technologies's average E10 Growth Rate was 9.20% per year. During the past 3 years, the average E10 Growth Rate was 6.30% 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 Keysight Technologies was 6.30% per year. The lowest was 6.30% per year. And the median was 6.30% per year.

As of today (2026-06-27), Keysight Technologies's current stock price is $328.66. Keysight Technologies's E10 for the quarter that ended in Apr. 2026 was $4.39. Keysight Technologies's Shiller PE Ratio of today is 74.87.

During the past 13 years, the highest Shiller PE Ratio of Keysight Technologies was 83.40. The lowest was 31.11. And the median was 42.70.


Keysight Technologies  (NYSE:KEYS) 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.

Keysight Technologies's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=328.66/4.39
=74.87

* 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 Keysight Technologies was 83.40. The lowest was 31.11. And the median was 42.70.


Be Aware

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


Keysight Technologies E10 Related Terms


Keysight Technologies E10 Historical Data

* Premium members only.

The historical data trend for Keysight Technologies'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.

Keysight Technologies E10 Chart

Keysight Technologies Annual Data
Trend Oct16 Oct17 Oct18 Oct19 Oct20 Oct21 Oct22 Oct23 Oct24 Oct25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 3.36 3.71 3.84 4.04

Keysight Technologies Quarterly Data
Jul21 Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26 Apr26
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 4.02 4.10 4.04 4.16 4.39

KEYS vs GRMN, COHR, TDY: E10 Comparison

For the Scientific & Technical Instruments subindustry, Keysight Technologies'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.


Keysight Technologies Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Keysight Technologies's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Keysight Technologies's Shiller PE Ratio falls into.


KEYS
82GF Score
Keysight Technologies Inc KEYS
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Keysight Technologies 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, Keysight Technologies's adjusted earnings per share data for the three months ended in Apr. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Apr. 2026 (Change)*Current CPI (Apr. 2026)
=2.02/333.0200*333.0200
=2.020

Current CPI (Apr. 2026) = 333.0200.

Keysight Technologies Quarterly Data

per share eps CPI Adj_EPS
201607 0.530 240.628 0.733
201610 0.540 241.729 0.744
201701 0.630 242.839 0.864
201704 0.270 244.524 0.368
201707 -0.100 244.786 -0.136
201710 -0.200 246.663 -0.270
201801 0.500 247.867 0.672
201804 0.340 250.546 0.452
201807 0.630 252.006 0.833
201810 -0.610 252.885 -0.803
201901 0.600 251.712 0.794
201904 0.800 255.548 1.043
201907 0.830 256.571 1.077
201910 1.020 257.346 1.320
202001 0.860 257.971 1.110
202004 0.370 256.389 0.481
202007 0.930 259.101 1.195
202010 1.150 260.388 1.471
202101 0.920 261.582 1.171
202104 0.990 267.054 1.235
202107 1.360 273.003 1.659
202110 1.520 276.589 1.830
202201 1.240 281.148 1.469
202204 1.410 289.109 1.624
202207 1.870 296.276 2.102
202210 1.660 298.012 1.855
202301 1.450 299.170 1.614
202304 1.580 303.363 1.734
202307 1.610 305.691 1.754
202310 1.280 307.671 1.385
202401 0.980 308.417 1.058
202404 0.720 313.548 0.765
202407 2.220 314.540 2.350
202410 -0.420 315.664 -0.443
202501 0.970 317.671 1.017
202504 1.490 320.795 1.547
202507 1.100 323.048 1.134
202510 1.330 0.000
202601 1.630 325.252 1.669
202604 2.020 333.020 2.020

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 $4.39 mean?
Keysight Technologies (KEYS) has a E10 of $4.39 as of Apr. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Keysight Technologies and its competitors.
Is Keysight Technologies' E10 too high?
Keysight Technologies' current E10 is $4.39. Overall, Keysight Technologies has a GF Score™ of 82/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Keysight Technologies' E10 compare to GRMN and COHR?
Keysight Technologies' E10 of $4.39 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 Keysight Technologies and its competitors. Keysight Technologies's current E10 is $4.39. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Keysight Technologies stock overvalued right now?
Based on GuruFocus' analysis, Keysight Technologies (KEYS) is currently considered Significantly Overvalued. The stock's GF Value™ is $197.99, compared to a current price of $328.66 — trading 66% above its estimated fair value. The current E10 is $4.39. Keysight Technologies' overall GF Score™ is 82/100 with 5 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 Keysight Technologies (KEYS), the current E10 is $4.39 as of Apr. 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 Keysight Technologies (KEYS) Overvalued in 2026?

Based on GuruFocus' analysis, Keysight Technologies stock appears to be overvalued. The current stock price of $328.66 is trading 66% above its estimated GF Value™ of $197.99. GuruFocus considers Keysight Technologies to be Significantly Overvalued.

Key valuation signals for KEYS:

  • E10: $4.39
  • GF Value™: $197.99 vs. price of $328.66 (66% above fair value)
  • GF Score™: 82/100 with 5 warning signs

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


Keysight Technologies Business Description

Address 1400 Fountaingrove Parkway, Santa Rosa, CA, USA, 95403
Keysight Technologies is a leader in the field of testing and measurement, helping electronics OEMs and suppliers alike bring products to market to fit industry standards and specifications. Keysight specializes in the communications market, but also supplies into the government, automotive, industrial, and semiconductor manufacturing markets. Keysight's solutions include testing tools, analytical software, and services. The firm's stated objective is to reduce time to market and improve efficiency at its more than 30,000 customers.
82GF Score

Get the complete analysis for KEYS

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

$328.66
Price
$197.99
GF Value