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.
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.
Cisco SystemsMEX:CSCO +0.16%80 Shiller PE Ratio is 37.82 as of Sep. 07, 2026, which is 57% above its 10-year median of 24.09. GuruFocus rates MEX:CSCO with a GF Score™ of 80/100 and a GF Value™ of MXN1,268.36 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,422 Hardware companies, Cisco Systems ranks worse than 57.45% on this metric.
As of today (2026-09-07), Cisco Systems's current share price is MXN1848.00. Cisco Systems's E10 for the quarter that ended in Jul. 2026 was MXN48.86. Cisco Systems's Shiller PE Ratio for today is 37.82.
The historical rank and industry rank for Cisco Systems's Shiller PE Ratio or its related term are showing as below:
MEX:CSCO'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 17.24 Med: 24.09 Max: 43.6
Current: 38.72
During the past years, Cisco Systems's highest Shiller PE Ratio was 43.60. The lowest was 17.24. And the median was 24.09.
MEX:CSCO's Shiller PE Ratio is ranked worse than 57.45% of 1422
companies
in the Hardware industry
Industry Median: 30.395
vs MEX:CSCO: 38.72
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.
Cisco Systems's adjusted earnings per share data for the three months ended in Jul. 2026 was MXN16.804. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is MXN48.86 for the trailing ten years ended in Jul. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Cisco Systems (MEX:CSCO) 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.
Cisco Systems Shiller PE Ratio Related Terms
Cisco Systems Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Cisco Systems'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.
MEX:CSCO vs MSI, LITE, HPE: Shiller PE Ratio Comparison
For the Communication Equipment subindustry, Cisco Systems'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.
Cisco Systems Shiller PE Ratio vs Hardware Industry
For the Hardware industry and Technology sector, Cisco Systems's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Cisco Systems'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.
Cisco Systems'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.
Cisco Systems's E10 for the quarter that ended in Jul. 2026 is calculated as:
For example, Cisco Systems's adjusted earnings per share data for the three months ended in Jul. 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.
Cisco Systems (MEX:CSCO) has a Shiller PE Ratio of 37.82 as of Sep. 07, 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 Cisco Systems and its competitors. This is 57% above median its historical median of 24.09. Over the past decade, Cisco Systems' Shiller PE Ratio has ranged from 17.24 to 43.60. According to the industry distribution chart, Cisco Systems ranks #817 out of 1422 companies in the Hardware industry, placing it in the top 57.5%.
Is Cisco Systems' Shiller PE Ratio too high?
Cisco Systems' current Shiller PE Ratio of 37.82 is 57% above median its 10-year median of 24.09. Over the past 10 years, this metric has ranged from a low of 17.24 to a high of 43.60. The Hardware industry median Shiller PE Ratio is 30.40. Cisco Systems' value of 37.82 is 24.4% above this industry median. Based on the distribution chart, Cisco Systems ranks #817 out of 1422 companies in the Hardware industry, which is below the industry midpoint. Overall, Cisco Systems has a GF Score™ of 80/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Cisco Systems' Shiller PE Ratio compare to MSI and LITE?
According to the Hardware industry distribution chart, Cisco Systems ranks #817 out of 1422 companies for Shiller PE Ratio. This places Cisco Systems in the lower half of its industry. The industry median Shiller PE Ratio is 30.40. Cisco Systems' value of 37.82 is 24.4% above this benchmark. Historically, Cisco Systems' own Shiller PE Ratio has ranged from 17.24 to 43.60 over the past decade. While the company's 10-year median is 24.09 vs. the industry median of 30.40, Cisco Systems 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 Hardware company?
The median Shiller PE Ratio among Hardware companies is 30.40, based on 1,422 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. Cisco Systems's current Shiller PE Ratio of 37.82 is 24.4% 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 Cisco Systems and its competitors. For the Hardware industry, the median Shiller PE Ratio is 30.40 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Cisco Systems's current Shiller PE Ratio is 37.82, which is 57% above median its own 10-year median of 24.09. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Cisco Systems stock overvalued right now?
Based on GuruFocus' analysis, Cisco Systems (MEX:CSCO) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN1,268.36, compared to a current price of MXN1,848.00 — trading 45.7% above its estimated fair value. The current Shiller PE Ratio is 37.82, which is 57% above median its 10-year median of 24.09 and 24.4% above the Hardware industry median of 30.40. Cisco Systems' overall GF Score™ is 80/100 with 4 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 Cisco Systems (MEX:CSCO), the current Shiller PE Ratio is 37.82 as of Sep. 07, 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 Cisco Systems (MEX:CSCO) Overvalued in 2026?
Based on GuruFocus' analysis, Cisco Systems stock appears to be overvalued.
The current stock price of MXN1,848.00 is trading 45.7% above its estimated GF Value™ of MXN1,268.36.
GuruFocus considers Cisco Systems to be Significantly Overvalued.
Key valuation signals for MEX:CSCO:
Shiller PE Ratio: 37.82 (57% above median its 10-year median of 24.09)
GF Value™: MXN1,268.36 vs. price of MXN1,848.00 (45.7% above fair value)
Industry Position: 24.4% above the Hardware median (#817 of 1422)
No single metric tells the full story. See the MEX:CSCO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Cisco Systems is the largest provider of networking equipment in the world and one of the largest software companies in the world. Its largest businesses are selling networking hardware and software (where it has leading market shares) and cybersecurity software such as firewalls. It also has collaboration products, like its Webex suite, and observability tools. It primarily outsources its manufacturing to third parties and has a large sales and marketing staff—25,000 strong across 90 countries. Overall, Cisco employs 80,000 people and sells its products globally.
80GF Score
Get the complete analysis for MEX:CSCO
Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
MEX:CSCO has been successfully added to your 
