WallStSmart

MasTec Inc (MTZ)vsSouthern Company (SO)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Southern Company generates 97% more annual revenue ($30.18B vs $15.28B). SO leads profitability with a 14.5% profit margin vs 3.0%. MTZ appears more attractively valued with a PEG of 2.54. MTZ earns a higher WallStSmart Score of 58/100 (C).

MTZ

Buy

58

out of 100

Grade: C

Growth: 9.3Profit: 5.5Value: 2.0Quality: 6.0
Piotroski: 4/9Altman Z: 2.59

SO

Buy

56

out of 100

Grade: C

Growth: 4.0Profit: 7.0Value: 3.3Quality: 5.0
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

MTZSignificantly Overvalued (-38.8%)

Margin of Safety

-38.8%

Fair Value

$190.97

Current Price

$433.28

$242.31 premium

UndervaluedFair: $190.97Overvalued
SOSignificantly Overvalued (-30.8%)

Margin of Safety

-30.8%

Fair Value

$73.33

Current Price

$93.51

$20.18 premium

UndervaluedFair: $73.33Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

MTZ2 strengths · Avg: 10.0/10
Revenue GrowthGrowth
34.5%10/10

Revenue surging 34.5% year-over-year

EPS GrowthGrowth
508.0%10/10

Earnings expanding 508.0% YoY

SO3 strengths · Avg: 8.3/10
Market CapQuality
$108.21B9/10

Large-cap with strong market position

Price/BookValuation
2.9x8/10

Reasonable price relative to book value

Operating MarginProfitability
25.8%8/10

Strong operational efficiency at 25.8%

Areas to Watch

MTZ4 concerns · Avg: 3.0/10
Price/BookValuation
10.4x4/10

Trading at 10.4x book value

Profit MarginProfitability
3.0%3/10

3.0% margin — thin

Operating MarginProfitability
3.7%3/10

Operating margin of 3.7%

PEG RatioValuation
2.542/10

Expensive relative to growth rate

SO3 concerns · Avg: 2.0/10
PEG RatioValuation
2.752/10

Expensive relative to growth rate

EPS GrowthGrowth
-0.8%2/10

Earnings declined 0.8%

Free Cash FlowQuality
$-1.72B2/10

Negative free cash flow — burning cash

Comparative Analysis Report

WallStSmart Research

Bull Case : MTZ

The strongest argument for MTZ centers on Revenue Growth, EPS Growth. Revenue growth of 34.5% demonstrates continued momentum.

Bull Case : SO

The strongest argument for SO centers on Market Cap, Price/Book, Operating Margin.

Bear Case : MTZ

The primary concerns for MTZ are Price/Book, Profit Margin, Operating Margin. A P/E of 82.7x leaves little room for execution misses. Thin 3.0% margins leave little buffer for downturns.

Bear Case : SO

The primary concerns for SO are PEG Ratio, EPS Growth, Free Cash Flow.

Key Dynamics to Monitor

MTZ profiles as a hypergrowth stock while SO is a value play — different risk/reward profiles.

MTZ carries more volatility with a beta of 1.80 — expect wider price swings.

MTZ is growing revenue faster at 34.5% — sustainability is the question.

MTZ generates stronger free cash flow (2M), providing more financial flexibility.

Bottom Line

MTZ scores higher overall (58/100 vs 56/100) and 34.5% revenue growth. 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.

MasTec Inc

INDUSTRIALS · ENGINEERING & CONSTRUCTION · USA

MasTec, Inc., an infrastructure construction company, provides engineering, construction, installation, maintenance, and upgrade services for communications, energy, utilities, and other infrastructure primarily in the United States and Canada. The company is headquartered in Coral Gables, Florida.

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Southern Company

UTILITIES · UTILITIES - REGULATED ELECTRIC · USA

Southern Company is an American gas and electric utility holding company based in the southern United States. It is headquartered in Atlanta, Georgia, with executive offices also located in Birmingham, Alabama.

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