Quanta Services Inc (PWR)vsWestern Digital Corporation (WDC)
PWR
Quanta Services Inc
$785.29
+1.77%
INDUSTRIALS · Cap: $113.65B
WDC
Western Digital Corporation
$483.15
+3.85%
TECHNOLOGY · Cap: $152.47B
Smart Verdict
WallStSmart Research — data-driven comparison
Quanta Services Inc generates 156% more annual revenue ($30.12B vs $11.78B). WDC leads profitability with a 55.3% profit margin vs 3.7%. WDC appears more attractively valued with a PEG of 0.87. WDC earns a higher WallStSmart Score of 79/100 (B+).
PWR
Buy54
out of 100
Grade: C-
WDC
Strong Buy79
out of 100
Grade: B+
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Earnings expanding 51.0% YoY
Large-cap with strong market position
Revenue surging 26.3% year-over-year
Every $100 of equity generates 86 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 477.2% YoY
Large-cap with strong market position
Areas to Watch
Expensive relative to growth rate
Trading at 13.1x book value
3.7% margin — thin
Operating margin of 4.2%
Moderate valuation
Trading at 23.1x book value
Comparative Analysis Report
WallStSmart ResearchBull Case : PWR
The strongest argument for PWR centers on EPS Growth, Market Cap, Revenue Growth. Revenue growth of 26.3% demonstrates continued momentum.
Bull Case : WDC
The strongest argument for WDC centers on Return on Equity, Profit Margin, Operating 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 : PWR
The primary concerns for PWR are PEG Ratio, Price/Book, Profit Margin. A P/E of 102.1x leaves little room for execution misses. Thin 3.7% margins leave little buffer for downturns.
Bear Case : WDC
The primary concerns for WDC are P/E Ratio, Price/Book.
Key Dynamics to Monitor
WDC carries more volatility with a beta of 2.16 — 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.
Monitor ENGINEERING & CONSTRUCTION industry trends, competitive dynamics, and regulatory changes.
Bottom Line
WDC scores higher overall (79/100 vs 54/100), backed by strong 55.3% margins and 45.5% revenue growth. Both earn "Strong 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.
Quanta Services Inc
INDUSTRIALS · ENGINEERING & CONSTRUCTION · USA
Quanta Services is an American corporation that provides infrastructure services for electric power, pipeline, industrial and communications industries. Capabilities include the planning, design, installation, program management, maintenance and repair of most types of network infrastructure.
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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