Ciena (CIEN) YoY EPS Growth: 424.18% (As of Jul. 2026)

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CIEN Ciena Corp CIEN
76 GF Score
Price $363.66
GF Value $115.14
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Ciena YoY EPS Growth?

Ciena CIEN +4.26% 76 YoY EPS Growth is 424.18% as of Jul. 2026. GuruFocus rates CIEN with a GF Score™ of 76/100 and a GF Value™ of $115.14 (Significantly Overvalued). The stock has 4 warning signs investors should review.

YoY EPS Growth is the percentage change of Earnings per Share (Diluted) over the past twelve months. Ciena's YoY EPS Growth for the quarter that ended in Jul. 2026 was 424.18%.

Ciena's Earnings per Share (Diluted) for the three months ended in Jul. 2026 was $1.83.

Ciena YoY EPS Growth Historical Data

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The historical data trend for Ciena's YoY EPS Growth 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.

Ciena YoY EPS Growth Chart

Ciena Annual Data
Trend Oct16 Oct17 Oct18 Oct19 Oct20 Oct21 Oct22 Oct23 Oct24 Oct25
YoY EPS Growth
Get a 7-Day Free Trial Premium Member Only Premium Member Only 37.75 -68.52 69.79 -66.28 47.64

Ciena Quarterly Data
Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26 Apr26 Jul26
YoY EPS Growth 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 255.67 -46.99 237.53 2,309.37 424.18
CIEN
76GF Score
Ciena Corp CIEN
YoY EPS Growth is just one metric. See GF Score™, valuation, warning signs, and more.
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Ciena YoY EPS Growth Calculation

YoY EPS Growth is the percentage change of Earnings per Share (Diluted) over the past twelve months.

Ciena's YoY EPS Growth for the fiscal year that ended in Oct. 2025 is calculated as:

YoY EPS Growth (A: Oct. 2025 )
=(Earnings per Share (Diluted) (A: Oct. 2025 )-Earnings per Share (Diluted) (A: Oct. 2024 ))/ | Earnings per Share (Diluted) (A: Oct. 2024 ) |
=(0.8492-0.5752)/ | 0.5752 |
=47.64 %

Ciena's YoY EPS Growth for the quarter that ended in Jul. 2026 is calculated as:

YoY EPS Growth (Q: Jul. 2026 )
=(Earnings per Share (Diluted) (Q: Jul. 2026 )-Earnings per Share (Diluted) (Q: Jul. 2025 )) / | Earnings per Share (Diluted) (Q: Jul. 2025 )) |
=(1.8252-0.3482)/ | 0.3482 |
=424.18 %

* 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.

Frequently Asked Questions Learn more about YoY EPS Growth →
What does a YoY EPS Growth of 424.18% mean?
Ciena (CIEN) has a YoY EPS Growth of 424.18% as of Jul. 2026. YoY EPS Growth is the percentage change of EPS over the past 12-month. View historical data for Ciena and its competitors.
Is Ciena's YoY EPS Growth too high?
Ciena's current YoY EPS Growth is 424.18%. Overall, Ciena has a GF Score™ of 76/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ciena's YoY EPS Growth compare to HPE and UI?
Ciena's YoY EPS Growth of 424.18% can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good YoY EPS Growth for a Hardware company?
A good YoY EPS Growth depends on the Hardware industry context. However, YoY EPS Growth should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high YoY EPS Growth mean?
A high YoY EPS Growth can signal that a stock is expensive relative to its fundamentals. YoY EPS Growth is the percentage change of EPS over the past 12-month. View historical data for Ciena and its competitors. Ciena's current YoY EPS Growth is 424.18%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ciena stock overvalued right now?
Based on GuruFocus' analysis, Ciena (CIEN) is currently considered Significantly Overvalued. The stock's GF Value™ is $115.14, compared to a current price of $363.66 — trading 215.8% above its estimated fair value. The current YoY EPS Growth is 424.18%. Ciena's overall GF Score™ is 76/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is YoY EPS Growth calculated?
YoY EPS Growth is calculated from a company's financial statements. For Ciena (CIEN), the current YoY EPS Growth is 424.18% as of Jul. 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 Ciena (CIEN) Overvalued in 2026?

Based on GuruFocus' analysis, Ciena stock appears to be overvalued. The current stock price of $363.66 is trading 215.8% above its estimated GF Value™ of $115.14. GuruFocus considers Ciena to be Significantly Overvalued.

Key valuation signals for CIEN:

  • YoY EPS Growth: 424.18%
  • GF Value™: $115.14 vs. price of $363.66 (215.8% above fair value)
  • GF Score™: 76/100 with 4 warning signs

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

Ciena Business Description

Address 7035 Ridge Road, Hanover, MD, USA, 21076
Ciena is a leader in high-speed optical connectivity, providing systems, components, and automation software for telecom providers and enterprises, such as data centers, to enable long-distance connectivity. The company operates through four primary business segments: networking platforms, platform software and services, Blue Planet automation software, and global services. While telecom carriers remain important customers, cloud providers and hyperscalers now drive a significant portion of the business. To meet the demands of AI data centers, customers are adopting Ciena's WaveLogic 6 platform, the first to support 1.6 terabits-per-second capacity.
76GF Score

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YoY EPS Growth is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$363.66
Price
$115.14
GF Value