Quanta Services Inc (PWR)vsWilliams Companies Inc (WMB)
PWR
Quanta Services Inc
$785.29
+1.77%
INDUSTRIALS · Cap: $113.65B
WMB
Williams Companies Inc
$73.76
-3.10%
ENERGY · Cap: $92.22B
Smart Verdict
WallStSmart Research — data-driven comparison
Quanta Services Inc generates 155% more annual revenue ($30.12B vs $11.83B). WMB leads profitability with a 22.1% profit margin vs 3.7%. PWR appears more attractively valued with a PEG of 2.43. WMB earns a higher WallStSmart Score of 67/100 (B-).
PWR
Buy54
out of 100
Grade: C-
WMB
Strong Buy67
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
Strong operational efficiency at 41.2%
Earnings expanding 50.8% YoY
Large-cap with strong market position
Keeps 22 of every $100 in revenue as profit
Areas to Watch
Expensive relative to growth rate
Trading at 13.1x book value
3.7% margin — thin
Operating margin of 4.2%
Premium valuation, high expectations priced in
Weak financial health signals
Expensive relative to growth rate
Distress zone — elevated risk
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 : WMB
The strongest argument for WMB centers on Operating Margin, EPS Growth, Market Cap. Profitability is solid with margins at 22.1% and operating margin at 41.2%.
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 : WMB
The primary concerns for WMB are P/E Ratio, Piotroski F-Score, PEG Ratio.
Key Dynamics to Monitor
PWR profiles as a growth stock while WMB is a mature play — different risk/reward profiles.
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.
WMB generates stronger free cash flow (244M), providing more financial flexibility.
Bottom Line
WMB scores higher overall (67/100 vs 54/100), backed by strong 22.1% margins. 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.
Williams Companies Inc
ENERGY · OIL & GAS MIDSTREAM · USA
The Williams Companies, Inc., is an American energy company based in Tulsa, Oklahoma. Its core business is natural gas processing and transportation, with additional petroleum and electricity generation assets.
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