Ciena Corp (CIEN)vsWestern Digital Corporation (WDC)
CIEN
Ciena Corp
$488.21
-8.85%
TECHNOLOGY · Cap: $65.60B
WDC
Western Digital Corporation
$575.50
+4.79%
TECHNOLOGY · Cap: $225.26B
Smart Verdict
WallStSmart Research — data-driven comparison
Western Digital Corporation generates 111% more annual revenue ($11.78B vs $5.57B). WDC leads profitability with a 55.3% profit margin vs 7.9%. WDC appears more attractively valued with a PEG of 0.58. WDC earns a higher WallStSmart Score of 80/100 (A-).
CIEN
Buy64
out of 100
Grade: C+
WDC
Exceptional Buy80
out of 100
Grade: A-
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Revenue surging 39.5% year-over-year
Earnings expanding 2383.0% YoY
Large-cap with strong market position
Mega-cap, among the largest globally
Every $100 of equity generates 67 in profit
Keeps 55 of every $100 in revenue as profit
Strong operational efficiency at 37.0%
Revenue surging 45.5% year-over-year
Earnings expanding 482.9% YoY
Areas to Watch
7.9% margin — thin
Premium valuation, high expectations priced in
Trading at 23.9x book value
Distress zone — elevated risk
Premium valuation, high expectations priced in
Distress zone — elevated risk
Trading at 27.5x book value
Comparative Analysis Report
WallStSmart ResearchBull Case : CIEN
The strongest argument for CIEN centers on Revenue Growth, EPS Growth, Market Cap. Revenue growth of 39.5% demonstrates continued momentum. PEG of 1.01 suggests the stock is reasonably priced for its growth.
Bull Case : WDC
The strongest argument for WDC centers on Market Cap, Return on Equity, Profit Margin. Profitability is solid with margins at 55.3% and operating margin at 37.0%. Revenue growth of 45.5% demonstrates continued momentum.
Bear Case : CIEN
The primary concerns for CIEN are Profit Margin, P/E Ratio, Price/Book. A P/E of 154.0x leaves little room for execution misses.
Bear Case : WDC
The primary concerns for WDC are P/E Ratio, Altman Z-Score, Price/Book.
Key Dynamics to Monitor
CIEN profiles as a hypergrowth stock while WDC is a growth play — different risk/reward profiles.
WDC carries more volatility with a beta of 2.20 — expect wider price swings.
WDC is growing revenue faster at 45.5% — sustainability is the question.
WDC generates stronger free cash flow (978M), providing more financial flexibility.
Bottom Line
WDC scores higher overall (80/100 vs 64/100), backed by strong 55.3% margins and 45.5% revenue growth. Both earn "Exceptional Buy" and "Buy" ratings respectively — the choice depends on your investment horizon and risk tolerance.
This analysis is generated from publicly available financial data. Not financial advice.
Ciena Corp
TECHNOLOGY · COMMUNICATION EQUIPMENT · USA
Ciena Corporation provides hardware, software, and network services that support the transport, routing, switching, aggregation, service delivery, and management of video, data, and voice traffic on communications networks worldwide. The company is headquartered in Hanover, Maryland.
Visit Website →Western Digital Corporation
TECHNOLOGY · COMPUTER HARDWARE · USA
Western Digital Corporation (WDC, commonly known as Western Digital or WD) is an American computer hard disk drive manufacturer and data storage company, headquartered in San Jose, California. It designs, manufactures and sells data technology products, including storage devices, data center systems and cloud storage services.
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