Ciena (MEX:CIEN) Shiller PE Ratio : 45.56 (As of Jul. 24, 2025)

Ciena Shiller PE Ratio Chart

Ciena Annual Data
	Trend	Oct15	Oct16	Oct17	Oct18	Oct19	Oct20	Oct21	Oct22	Oct23	Oct24
Shiller PE Ratio		Get a 7-Day Free Trial					79.54	49.12	32.29	23.23	32.18

Ciena Quarterly Data
	Jul20	Oct20	Jan21	Apr21	Jul21	Oct21	Jan22	Apr22	Jul22	Oct22	Jan23	Apr23	Jul23	Oct23	Jan24	Apr24	Jul24	Oct24	Jan25	Apr25
Shiller PE Ratio	Get a 7-Day Free Trial															24.24	27.71	32.18	42.71	32.87

Competitive Comparison of Ciena's Shiller PE Ratio

For the Communication Equipment subindustry, Ciena'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.

Ciena's Shiller PE Ratio Distribution in the Hardware Industry

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

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

Ciena 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.

Ciena'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.

Ciena's E10 for the quarter that ended in Apr. 2025 is calculated as:

For example, Ciena's adjusted earnings per share data for the three months ended in Apr. 2025 was:

Current CPI (Apr. 2025) = 135.3468.

Ciena Quarterly Data

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.

Ciena  (MEX:CIEN) 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.

Ciena Shiller PE Ratio Related Terms

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Ciena Business Description