Etherstack (ASX:ESK) Shiller PE Ratio: (As of Aug. 23, 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

ASX:ESK Etherstack PLC ASX:ESK
37 GF Score
Price A$0.53
GF Value A$0.45
Valuation Modestly Overvalued
! 4 Warning Signs
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What is Etherstack Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Etherstack  (ASX:ESK) 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.


Etherstack Shiller PE Ratio Related Terms


Etherstack Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Etherstack'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.

Etherstack Shiller PE Ratio Chart

Etherstack 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 0.00 0.00 0.00 0.00 0.00

Etherstack Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
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 0.00 0.00 0.00 0.00 0.00

ASX:ESK vs QH, SHOP, UBER: Shiller PE Ratio Comparison

For the Software - Application subindustry, Etherstack'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.


Etherstack Shiller PE Ratio vs Software Industry

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

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


ASX:ESK
37GF Score
Etherstack PLC ASX:ESK
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Etherstack 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.

Etherstack's E10 for the fiscal year that ended in Dec25 is calculated as:

For example, Etherstack's adjusted earnings per share data for the fiscal year that ended in Dec25 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Dec25 (Change)*Current CPI (Dec25)
=-0.008/139.9000*139.9000
=-0.008

Current CPI (Dec25) = 139.9000.

Etherstack Annual Data

Earnings per Share (Diluted) CPI Adj_EPS
201612 -0.030 102.200 -0.041
201712 -0.018 105.000 -0.024
201812 0.001 107.100 0.001
201912 -0.011 108.500 -0.014
202012 -0.026 109.400 -0.033
202112 0.015 114.700 0.018
202212 0.024 125.300 0.027
202312 0.003 130.500 0.003
202412 -0.047 135.100 -0.049
202512 -0.008 139.900 -0.008

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.

Is Etherstack (ASX:ESK) Overvalued in 2026?

Based on GuruFocus' analysis, Etherstack stock appears to be overvalued. The current stock price of A$0.53 is trading 17.8% above its estimated GF Value™ of A$0.45. GuruFocus considers Etherstack to be Modestly Overvalued.

Key valuation signals for ASX:ESK:

  • Shiller PE Ratio:
  • GF Value™: A$0.45 vs. price of A$0.53 (17.8% above fair value)
  • GF Score™: 37/100 with 4 warning signs

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


Etherstack Business Description

Address The Blade, Abbey Square, Suite 12, Reading, GBR, RG1 3EB
Etherstack PLC specializes in wireless communications technology. It designs, develops, and deploys wireless communications software and products. The company develops software for use in transceivers, which enables the transceiver to communicate with a radio network and other transceivers. In addition, it also licenses its software and designs to companies that manufacture telecommunication equipment for government, public safety agencies, and utilities. Geographically, the firm operates through the region of the United Kingdom, the United States, Japan, Australia, South Korea, and Canada.
37GF Score

Get the complete analysis for ASX:ESK

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

A$0.53
Price
A$0.45
GF Value