Qualys (MIL:1QLYS) E10: €2.35 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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MIL:1QLYS Qualys Inc MIL:1QLYS
76 GF Score
Price €145.05
GF Value €123.68
Valuation Modestly Overvalued
! 1 Warning Sign
View Full Analysis

What is Qualys E10?

Qualys MIL:1QLYS 76 E10 is €2.35 as of Jun. 2026. GuruFocus rates MIL:1QLYS with a GF Score™ of 76/100 and a GF Value™ of €123.68 (Modestly Overvalued). The stock has 1 warning sign 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.

Qualys's adjusted earnings per share data for the three months ended in Jun. 2026 was €1.302. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €2.35 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Qualys's average E10 Growth Rate was 23.60% per year. During the past 3 years, the average E10 Growth Rate was 25.70% per year. During the past 5 years, the average E10 Growth Rate was 27.70% 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 Qualys was 30.30% per year. The lowest was 25.70% per year. And the median was 28.50% per year.

As of today (2026-09-15), Qualys's current stock price is €145.05. Qualys's E10 for the quarter that ended in Jun. 2026 was €2.35. Qualys's Shiller PE Ratio of today is 61.72.

During the past 13 years, the highest Shiller PE Ratio of Qualys was 162.91. The lowest was 25.23. And the median was 84.97.


Qualys  (MIL:1QLYS) 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.

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

Shiller PE Ratio=Share Price/E10
=145.05/2.35
=61.72

* 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 Qualys was 162.91. The lowest was 25.23. And the median was 84.97.


Be Aware

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


Qualys E10 Related Terms


Qualys E10 Historical Data

* Premium members only.

The historical data trend for Qualys'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.

Qualys E10 Chart

Qualys 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 0.00 0.00 0.00 0.00 2.75

Qualys Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 0.00 2.37 2.75 2.91 2.35

MIL:1QLYS vs MBGL, DOX, WEX: E10 Comparison

For the Software - Infrastructure subindustry, Qualys'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.


Qualys Shiller PE Ratio vs Software Industry

For the Software industry and Technology sector, Qualys's Shiller PE Ratio distribution charts can be found below:

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


MIL:1QLYS
76GF Score
Qualys Inc MIL:1QLYS
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Qualys 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, Qualys's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.302/333.9520*333.9520
=1.302

Current CPI (Jun. 2026) = 333.9520.

Qualys Quarterly Data

per share eps CPI Adj_EPS
201609 0.116 241.428 0.160
201612 0.142 241.432 0.196
201703 0.524 243.801 0.718
201706 0.160 244.955 0.218
201709 0.176 246.819 0.238
201712 0.059 246.524 0.080
201803 0.178 249.554 0.238
201806 0.205 251.989 0.272
201809 0.480 252.439 0.635
201812 0.308 251.233 0.409
201903 0.283 254.202 0.372
201906 0.345 256.143 0.450
201909 0.427 256.759 0.555
201912 0.450 256.974 0.585
202003 0.416 258.115 0.538
202006 0.568 257.797 0.736
202009 0.475 260.280 0.609
202012 0.485 260.474 0.622
202103 0.008 264.877 0.010
202106 0.440 271.696 0.541
202109 0.595 274.310 0.724
202112 0.487 278.802 0.583
202203 0.581 287.504 0.675
202206 0.634 296.311 0.715
202209 0.717 296.808 0.807
202212 0.699 296.797 0.787
202303 0.719 301.836 0.796
202306 0.877 305.109 0.960
202309 1.162 307.789 1.261
202312 0.990 306.746 1.078
202403 0.966 312.332 1.033
202406 1.087 314.175 1.155
202409 1.117 315.301 1.183
202412 1.136 315.605 1.202
202503 1.193 319.799 1.246
202506 1.118 322.561 1.157
202509 1.184 324.800 1.217
202512 1.255 324.054 1.293
202603 1.228 330.213 1.242
202606 1.302 333.952 1.302

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 €2.35 mean?
Qualys (MIL:1QLYS) has a E10 of €2.35 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Qualys and its competitors.
Is Qualys' E10 too high?
Qualys' current E10 is €2.35. Overall, Qualys has a GF Score™ of 76/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Qualys' E10 compare to MBGL and DOX?
Qualys' E10 of €2.35 can be compared against companies in the Software 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 Software company?
A good E10 depends on the Software 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 Qualys and its competitors. Qualys's current E10 is €2.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Qualys stock overvalued right now?
Based on GuruFocus' analysis, Qualys (MIL:1QLYS) is currently considered Modestly Overvalued. The stock's GF Value™ is €123.68, compared to a current price of €145.05 — trading 17.3% above its estimated fair value. The current E10 is €2.35. Qualys' overall GF Score™ is 76/100 with 1 warning sign 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 Qualys (MIL:1QLYS), the current E10 is €2.35 as of Jun. 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 Qualys (MIL:1QLYS) Overvalued in 2026?

Based on GuruFocus' analysis, Qualys stock appears to be overvalued. The current stock price of €145.05 is trading 17.3% above its estimated GF Value™ of €123.68. GuruFocus considers Qualys to be Modestly Overvalued.

Key valuation signals for MIL:1QLYS:

  • E10: €2.35
  • GF Value™: €123.68 vs. price of €145.05 (17.3% above fair value)
  • GF Score™: 76/100 with 1 warning sign

No single metric tells the full story. See the MIL:1QLYS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Qualys Business Description

Other Exchanges QLYS:USA3L7A:Germany
Address 919 E Hillsdale Boulevard, 4th Floor, Foster City, CA, USA, 94404
Qualys is a cloud security and compliance solutions provider that helps businesses identify and manage their security risks and compliance requirements. The California-based company has more than 10,000 customers worldwide, the majority of which are small- and medium-size businesses. Qualys was founded in 1999 and went public in 2012.
76GF Score

Get the complete analysis for MIL:1QLYS

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

€145.05
Price
€123.68
GF Value