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A10 NetworksATEN +0.40%84 Shiller PE Ratio is 71.11 as of Sep. 10, 2026, which is 29% below its 10-year median of 100.56. GuruFocus rates ATEN with a GF Score™ of 84/100 and a GF Value™ of $20.02 (Modestly Overvalued). The stock has 3 warning signs investors should review. Among 1,019 Software companies, A10 Networks ranks worse than 81.06% on this metric.
As of today (2026-09-10), A10 Networks's current share price is $24.89. A10 Networks's E10 for the quarter that ended in Jun. 2026 was $0.35. A10 Networks's Shiller PE Ratio for today is 71.11.
The historical rank and industry rank for A10 Networks's Shiller PE Ratio or its related term are showing as below:
ATEN'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 61.54 Med: 100.56 Max: 1618
Current: 71.11
During the past years, A10 Networks's highest Shiller PE Ratio was 1618.00. The lowest was 61.54. And the median was 100.56.
ATEN's Shiller PE Ratio is ranked worse than 81.06% of 1019
companies
in the Software industry
Industry Median: 27.16
vs ATEN: 71.11
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.
A10 Networks's adjusted earnings per share data for the three months ended in Jun. 2026 was $0.120. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.35 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
A10 Networks (NYSE:ATEN) 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.
A10 Networks Shiller PE Ratio Related Terms
A10 Networks Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for A10 Networks'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.
ATEN vs GCT, PRGS, PGY: Shiller PE Ratio Comparison
For the Software - Infrastructure subindustry, A10 Networks'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.
A10 Networks Shiller PE Ratio vs Software Industry
For the Software industry and Technology sector, A10 Networks's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where A10 Networks's Shiller PE Ratio falls into.
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.
A10 Networks's Shiller PE Ratio for today is calculated as
* 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.
A10 Networks's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, A10 Networks's adjusted earnings per share data for the three months ended in Jun. 2026 was:
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.
A10 Networks (ATEN) has a Shiller PE Ratio of 71.11 as of Sep. 10, 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 A10 Networks and its competitors. This is 29% below median its historical median of 100.56. Over the past decade, A10 Networks' Shiller PE Ratio has ranged from 61.54 to 1,618.00. According to the industry distribution chart, A10 Networks ranks #826 out of 1019 companies in the Software industry, placing it in the top 81.1%.
Is A10 Networks' Shiller PE Ratio too high?
A10 Networks' current Shiller PE Ratio of 71.11 is 29% below median its 10-year median of 100.56. Over the past 10 years, this metric has ranged from a low of 61.54 to a high of 1,618.00. The Software industry median Shiller PE Ratio is 27.16. A10 Networks' value of 71.11 is 161.8% above this industry median. Based on the distribution chart, A10 Networks ranks #826 out of 1019 companies in the Software industry, which is in the bottom quartile relative to peers. Overall, A10 Networks has a GF Score™ of 84/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does A10 Networks' Shiller PE Ratio compare to GCT and PRGS?
According to the Software industry distribution chart, A10 Networks ranks #826 out of 1019 companies for Shiller PE Ratio. This places A10 Networks in the lower half of its industry. The industry median Shiller PE Ratio is 27.16. A10 Networks' value of 71.11 is 161.8% above this benchmark. Historically, A10 Networks' own Shiller PE Ratio has ranged from 61.54 to 1,618.00 over the past decade. While the company's 10-year median is 100.56 vs. the industry median of 27.16, A10 Networks 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 27.16, based on 1,019 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. A10 Networks's current Shiller PE Ratio of 71.11 is 161.8% 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 A10 Networks and its competitors. For the Software industry, the median Shiller PE Ratio is 27.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. A10 Networks's current Shiller PE Ratio is 71.11, which is 29% below median its own 10-year median of 100.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is A10 Networks stock overvalued right now?
Based on GuruFocus' analysis, A10 Networks (ATEN) is currently considered Modestly Overvalued. The stock's GF Value™ is $20.02, compared to a current price of $24.89 — trading 24.3% above its estimated fair value. The current Shiller PE Ratio is 71.11, which is 29% below median its 10-year median of 100.56 and 161.8% above the Software industry median of 27.16. A10 Networks' overall GF Score™ is 84/100 with 3 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 A10 Networks (ATEN), the current Shiller PE Ratio is 71.11 as of Sep. 10, 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 A10 Networks (ATEN) Overvalued in 2026?
Based on GuruFocus' analysis, A10 Networks stock appears to be overvalued.
The current stock price of $24.89 is trading 24.3% above its estimated GF Value™ of $20.02.
GuruFocus considers A10 Networks to be Modestly Overvalued.
Key valuation signals for ATEN:
Shiller PE Ratio: 71.11 (29% below median its 10-year median of 100.56)
GF Value™: $20.02 vs. price of $24.89 (24.3% above fair value)
Industry Position: 161.8% above the Software median (#826 of 1019)
No single metric tells the full story. See the ATEN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
A10 Networks Inc is a provider of secure application and network infrastructure solutions for enterprises and service providers across on-premises, hybrid cloud, and distributed environments. The company's offerings include application delivery and traffic management, distributed denial-of-service (DDoS) protection, application and API security, and centralized management. It serves customers across multiple industries, including telecommunications, technology, financial services, public sector, industrial, retail, gaming, and education. The majority of the company's revenue is derived from the sale of secure networking and cybersecurity solutions and related maintenance and support services.
84GF Score
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