Ciena (MIL:1CIEN) Quality Rank

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

MIL:1CIEN Ciena Corp MIL:1CIEN
54 GF Score
Price €328.10
GF Value €81.04
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Ciena Quality Rank?

The Quality Rank measures the business quality of a company relative to other companies. It is ranked based on the strength of the balance sheet, as well as the profitability and growth of the business. The ranked companies are split in equal numbers and then ranked from 1 to 10, with 10 being the highest.

The rank of balance sheet (30%)

The rank of balance sheet is done through the ranking of:
  • Interest coverage
  • Zscore
  • Debt to revenue
  • Equity to asset
  • Cash to debt

The rank of Profitability (70%)

The ranking of Profitability is done by ranking:
  • Operating margin mean rank (10-year mean average profit margine)
  • Operating margin growth rank
  • Fscore
  • Predictability rank
  • Revenue growth rank (5 year), when the growth is higher than 25%, set it as 25%
  • Num of year profit (number of years that is profitable within the last 10 years)
  • ROIC median (10-year median of ROIC)

Ciena Quality Rank Related Terms

MIL:1CIEN
54GF Score
Ciena Corp MIL:1CIEN
Quality Rank is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Is Ciena (MIL:1CIEN) Overvalued in 2026?

Based on GuruFocus' analysis, Ciena stock appears to be overvalued. The current stock price of €328.10 is trading 304.9% above its estimated GF Value™ of €81.04. GuruFocus considers Ciena to be Significantly Overvalued.

Key valuation signals for MIL:1CIEN:

  • Quality Rank:
  • GF Value™: €81.04 vs. price of €328.10 (304.9% above fair value)
  • GF Score™: 54/100 with 4 warning signs

No single metric tells the full story. See the MIL:1CIEN 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.
54GF Score

Get the complete analysis for MIL:1CIEN

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

€328.10
Price
€81.04
GF Value