Quanta Services Inc (PWR)vsWest Pharmaceutical Services Inc (WST)
PWR
Quanta Services Inc
$785.29
+1.77%
INDUSTRIALS · Cap: $113.65B
WST
West Pharmaceutical Services Inc
$312.55
+0.83%
HEALTHCARE · Cap: $21.24B
Smart Verdict
WallStSmart Research — data-driven comparison
Quanta Services Inc generates 835% more annual revenue ($30.12B vs $3.22B). WST leads profitability with a 16.9% profit margin vs 3.7%. PWR appears more attractively valued with a PEG of 2.43. WST earns a higher WallStSmart Score of 67/100 (B-).
PWR
Buy54
out of 100
Grade: C-
WST
Strong Buy67
out of 100
Grade: B-
Intrinsic Value Comparison
Multi-model valuation · Graham Formula
Intrinsic value data unavailable for PWR.
Margin of Safety
-32.8%
Fair Value
$185.39
Current Price
$312.55
$127.16 premium
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
Earnings expanding 56.1% YoY
Safe zone — low bankruptcy risk
Strong operational efficiency at 21.7%
Revenue surging 21.0% year-over-year
Areas to Watch
Expensive relative to growth rate
Trading at 13.1x book value
3.7% margin — thin
Operating margin of 4.2%
Expensive relative to growth rate
Premium valuation, high expectations priced in
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 : WST
The strongest argument for WST centers on EPS Growth, Altman Z-Score, Operating Margin. Profitability is solid with margins at 16.9% and operating margin at 21.7%. Revenue growth of 21.0% 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 : WST
The primary concerns for WST are PEG Ratio, P/E Ratio. A P/E of 40.1x leaves little room for execution misses.
Key Dynamics to Monitor
PWR carries more volatility with a beta of 1.24 — expect wider price swings.
PWR is growing revenue faster at 26.3% — sustainability is the question.
PWR generates stronger free cash flow (172M), providing more financial flexibility.
Monitor ENGINEERING & CONSTRUCTION industry trends, competitive dynamics, and regulatory changes.
Bottom Line
WST scores higher overall (67/100 vs 54/100), backed by strong 16.9% margins and 21.0% 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.
West Pharmaceutical Services Inc
HEALTHCARE · MEDICAL INSTRUMENTS & SUPPLIES · USA
West Pharmaceutical Services, Inc. is a designer and manufacturer of injectable pharmaceutical packaging and delivery systems. The company is headquartered in Exton, Pennsylvania.
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