Ciena Corp (CIEN)vsWestern Digital Corporation (WDC)
CIEN
Ciena Corp
$383.89
-6.95%
TECHNOLOGY · Cap: $54.31B
WDC
Western Digital Corporation
$293.10
-7.52%
TECHNOLOGY · Cap: $100.21B
Smart Verdict
WallStSmart Research — data-driven comparison
Western Digital Corporation generates 109% more annual revenue ($10.73B vs $5.12B). WDC leads profitability with a 35.6% profit margin vs 4.5%. WDC appears more attractively valued with a PEG of 0.69. WDC earns a higher WallStSmart Score of 55/100 (C).
CIEN
Buy54
out of 100
Grade: C-
WDC
Buy55
out of 100
Grade: C
Intrinsic Value Comparison
Multi-model valuation · Graham Formula
Margin of Safety
-304.5%
Fair Value
$73.48
Current Price
$383.89
$310.41 premium
Margin of Safety
-311.2%
Fair Value
$66.57
Current Price
$293.10
$226.53 premium
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Revenue surging 33.1% year-over-year
Earnings expanding 232.3% YoY
Large-cap with strong market position
Every $100 of equity generates 41 in profit
Keeps 36 of every $100 in revenue as profit
Large-cap with strong market position
Growing faster than its price suggests
Areas to Watch
Expensive relative to growth rate
Trading at 19.4x book value
4.5% margin — thin
Premium valuation, high expectations priced in
Moderate valuation
Trading at 14.0x book value
Revenue declined 41.0%
Earnings declined 95.9%
Comparative Analysis Report
WallStSmart ResearchBull Case : CIEN
The strongest argument for CIEN centers on Revenue Growth, EPS Growth, Market Cap. Revenue growth of 33.1% demonstrates continued momentum.
Bull Case : WDC
The strongest argument for WDC centers on Return on Equity, Profit Margin, Market Cap. Profitability is solid with margins at 35.6% and operating margin at 15.4%. PEG of 0.69 suggests the stock is reasonably priced for its growth.
Bear Case : CIEN
The primary concerns for CIEN are PEG Ratio, Price/Book, Profit Margin. A P/E of 244.5x leaves little room for execution misses. Thin 4.5% margins leave little buffer for downturns.
Bear Case : WDC
The primary concerns for WDC are P/E Ratio, Price/Book, Revenue Growth.
Key Dynamics to Monitor
CIEN profiles as a hypergrowth stock while WDC is a declining play — different risk/reward profiles.
WDC carries more volatility with a beta of 1.85 — expect wider price swings.
CIEN is growing revenue faster at 33.1% — sustainability is the question.
WDC generates stronger free cash flow (653M), providing more financial flexibility.
Bottom Line
WDC scores higher overall (55/100 vs 54/100), backed by strong 35.6% margins. Both earn "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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