WallStSmart

MasTec Inc (MTZ)vsRio Tinto ADR (RIO)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Rio Tinto ADR generates 277% more annual revenue ($57.64B vs $15.28B). RIO leads profitability with a 17.3% 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

RIO

Buy

54

out of 100

Grade: C-

Growth: 4.0Profit: 8.0Value: 5.3Quality: 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
RIOUndervalued (+14.0%)

Margin of Safety

+14.0%

Fair Value

$114.13

Current Price

$100.58

$13.55 discount

UndervaluedFair: $114.13Overvalued

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

RIO5 strengths · Avg: 8.2/10
Market CapQuality
$163.40B9/10

Large-cap with strong market position

P/E RatioValuation
16.5x8/10

Attractively priced relative to earnings

Price/BookValuation
2.6x8/10

Reasonable price relative to book value

Operating MarginProfitability
25.3%8/10

Strong operational efficiency at 25.3%

Free Cash FlowQuality
$2.53B8/10

Generating 2.5B in free cash flow

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

RIO2 concerns · Avg: 2.0/10
PEG RatioValuation
5.692/10

Expensive relative to growth rate

EPS GrowthGrowth
-5.6%2/10

Earnings declined 5.6%

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 : RIO

The strongest argument for RIO centers on Market Cap, P/E Ratio, Price/Book. Profitability is solid with margins at 17.3% and operating margin at 25.3%. Revenue growth of 14.6% demonstrates continued momentum.

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 : RIO

The primary concerns for RIO are PEG Ratio, EPS Growth.

Key Dynamics to Monitor

MTZ profiles as a hypergrowth stock while RIO is a mature 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.

RIO generates stronger free cash flow (2.5B), providing more financial flexibility.

Bottom Line

MTZ scores higher overall (58/100 vs 54/100) 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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Rio Tinto ADR

BASIC MATERIALS · OTHER INDUSTRIAL METALS & MINING · USA

Rio Tinto Group is dedicated to the exploration, extraction and processing of mineral resources worldwide. The company is headquartered in London, the United Kingdom.

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