Qualys (MEX:QLYS) Shiller PE Ratio: 43.10 (As of Sep. 02, 2026) — 49% Below Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

MEX:QLYS Qualys Inc MEX:QLYS
98 GF Score
Price MXN2,642.08
GF Value MXN2,485.97
! 5 Warning Signs
View Full Analysis

What is Qualys Shiller PE Ratio?

Qualys MEX:QLYS 98 Shiller PE Ratio is 43.10 as of Sep. 02, 2026, which is 49% below its 10-year median of 84.98. GuruFocus rates MEX:QLYS with a GF Score™ of 98/100 and a GF Value™ of MXN2,485.97. The stock has 5 warning signs investors should review. Among 1,020 Software companies, Qualys ranks worse than 75.69% on this metric.

As of today (2026-09-02), Qualys's current share price is MXN2642.08. Qualys's E10 for the quarter that ended in Jun. 2026 was MXN61.30. Qualys's Shiller PE Ratio for today is 43.10.

The historical rank and industry rank for Qualys's Shiller PE Ratio or its related term are showing as below:

MEX:QLYS' s Shiller PE Ratio Range Over the Past 10 Years
Min: 25.23   Med: 84.98   Max: 162.91
Current: 55.51

During the past years, Qualys's highest Shiller PE Ratio was 162.91. The lowest was 25.23. And the median was 84.98.

MEX:QLYS's Shiller PE Ratio is ranked worse than
75.69% of 1020 companies
in the Software industry
Industry Median: 27.585 vs MEX:QLYS: 55.51

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio 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 MXN26.173. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is MXN61.30 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Qualys  (MEX:QLYS) 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.


Qualys Shiller PE Ratio Related Terms


Qualys Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Qualys'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.

Qualys Shiller PE Ratio Chart

Qualys 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 126.50 78.52 104.55 61.21 46.78

Qualys Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 55.43 48.66 46.78 29.10 43.09

MEX:QLYS vs MBGL, DOX, WEX: Shiller PE Ratio 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.


MEX:QLYS
98GF Score
Qualys Inc MEX:QLYS
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Qualys 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.

Qualys's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=2642.08/61.30
=43.10

* 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's E10 for the quarter that ended in Jun. 2026 is calculated as:

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)
=26.173/333.9520*333.9520
=26.173

Current CPI (Jun. 2026) = 333.9520.

Qualys Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 2.514 241.428 3.477
201612 3.093 241.432 4.278
201703 10.544 243.801 14.443
201706 3.254 244.955 4.436
201709 3.811 246.819 5.156
201712 1.375 246.524 1.863
201803 3.997 249.554 5.349
201806 4.716 251.989 6.250
201809 10.475 252.439 13.857
201812 6.872 251.233 9.135
201903 6.207 254.202 8.154
201906 7.491 256.143 9.767
201909 9.279 256.759 12.069
201912 9.430 256.974 12.255
202003 10.786 258.115 13.955
202006 14.773 257.797 19.137
202009 12.371 260.280 15.873
202012 11.736 260.474 15.047
202103 0.204 264.877 0.257
202106 10.550 271.696 12.967
202109 14.393 274.310 17.522
202112 11.283 278.802 13.515
202203 12.743 287.504 14.802
202206 13.479 296.311 15.191
202209 14.282 296.808 16.069
202212 14.427 296.797 16.233
202303 13.879 301.836 15.356
202306 16.287 305.109 17.827
202309 21.599 307.789 23.435
202312 18.332 306.746 19.958
202403 17.426 312.332 18.632
202406 21.435 314.175 22.784
202409 24.416 315.301 25.860
202412 24.818 315.605 26.261
202503 26.391 319.799 27.559
202506 24.290 322.561 25.148
202509 25.498 324.800 26.216
202512 26.468 324.054 27.276
202603 25.606 330.213 25.896
202606 26.173 333.952 26.173

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.

Frequently Asked Questions Learn more about Shiller PE Ratio →
What does a Shiller PE Ratio of 43.10 mean?
Qualys (MEX:QLYS) has a Shiller PE Ratio of 43.10 as of Sep. 02, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Qualys and its competitors. This is 49% below median its historical median of 84.98. Over the past decade, Qualys' Shiller PE Ratio has ranged from 25.23 to 162.91. According to the industry distribution chart, Qualys ranks #772 out of 1020 companies in the Software industry, placing it in the top 75.7%.
Is Qualys' Shiller PE Ratio too high?
Qualys' current Shiller PE Ratio of 43.10 is 49% below median its 10-year median of 84.98. Over the past 10 years, this metric has ranged from a low of 25.23 to a high of 162.91. The Software industry median Shiller PE Ratio is 27.59. Qualys' value of 43.10 is 56.2% above this industry median. Based on the distribution chart, Qualys ranks #772 out of 1020 companies in the Software industry, which is in the bottom quartile relative to peers. Overall, Qualys has a GF Score™ of 98/100, reflecting its overall financial health beyond just this single metric.
How does Qualys' Shiller PE Ratio compare to MBGL and DOX?
According to the Software industry distribution chart, Qualys ranks #772 out of 1020 companies for Shiller PE Ratio. This places Qualys in the lower half of its industry. The industry median Shiller PE Ratio is 27.59. Qualys' value of 43.10 is 56.2% above this benchmark. Historically, Qualys' own Shiller PE Ratio has ranged from 25.23 to 162.91 over the past decade. While the company's 10-year median is 84.98 vs. the industry median of 27.59, Qualys has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for a Software company?
The median Shiller PE Ratio among Software companies is 27.59, based on 1,020 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Qualys's current Shiller PE Ratio of 43.10 is 56.2% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Qualys and its competitors. For the Software industry, the median Shiller PE Ratio is 27.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Qualys's current Shiller PE Ratio is 43.10, which is 49% below median its own 10-year median of 84.98. 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?
Qualys (MEX:QLYS) has a current Shiller PE Ratio of 43.10. The stock's GF Value™ is MXN2,485.97, compared to a current price of MXN2,642.08 — trading 6.3% above its estimated fair value. The current Shiller PE Ratio is 43.10, which is 49% below median its 10-year median of 84.98 and 56.2% above the Software industry median of 27.59. Qualys' overall GF Score™ is 98/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Qualys (MEX:QLYS), the current Shiller PE Ratio is 43.10 as of Sep. 02, 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 (MEX:QLYS) Overvalued in 2026?

Based on GuruFocus' analysis, Qualys stock appears to be overvalued. The current stock price of MXN2,642.08 is trading 6.3% above its estimated GF Value™ of MXN2,485.97.

Key valuation signals for MEX:QLYS:

  • Shiller PE Ratio: 43.10 (49% below median its 10-year median of 84.98)
  • GF Value™: MXN2,485.97 vs. price of MXN2,642.08 (6.3% above fair value)
  • GF Score™: 98/100 with 5 warning signs
  • Industry Position: 56.2% above the Software median (#772 of 1020)

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


Qualys Business Description

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.
98GF Score

Get the complete analysis for MEX:QLYS

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

MXN2,642.08
Price
MXN2,485.97
GF Value