WallStSmart

Century Aluminum Company (CENX)vsRio Tinto ADR (RIO)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Rio Tinto ADR generates 2330% more annual revenue ($61.79B vs $2.54B). RIO leads profitability with a 19.6% profit margin vs 13.7%. CENX appears more attractively valued with a PEG of 0.06. CENX earns a higher WallStSmart Score of 70/100 (B-).

CENX

Strong Buy

70

out of 100

Grade: B-

Growth: 5.3Profit: 7.0Value: 6.7Quality: 6.0
Piotroski: 4/9Altman Z: 0.88

RIO

Buy

64

out of 100

Grade: C+

Growth: 7.3Profit: 9.0Value: 6.0Quality: 5.5
Piotroski: 1/9Altman Z: 2.03
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

CENXSignificantly Overvalued (-83.7%)

Margin of Safety

-83.7%

Fair Value

$29.09

Current Price

$51.23

$22.14 premium

UndervaluedFair: $29.09Overvalued
RIOUndervalued (+29.4%)

Margin of Safety

+29.4%

Fair Value

$138.95

Current Price

$101.10

$37.85 discount

UndervaluedFair: $138.95Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

CENX4 strengths · Avg: 9.5/10
PEG RatioValuation
0.0610/10

Growing faster than its price suggests

Return on EquityProfitability
32.3%10/10

Every $100 of equity generates 32 in profit

EPS GrowthGrowth
1010.0%10/10

Earnings expanding 1010.0% YoY

P/E RatioValuation
13.3x8/10

Attractively priced relative to earnings

RIO6 strengths · Avg: 8.5/10
Return on EquityProfitability
34.5%10/10

Every $100 of equity generates 35 in profit

Market CapQuality
$158.04B9/10

Large-cap with strong market position

P/E RatioValuation
12.7x8/10

Attractively priced relative to earnings

Price/BookValuation
2.6x8/10

Reasonable price relative to book value

Operating MarginProfitability
28.1%8/10

Strong operational efficiency at 28.1%

Revenue GrowthGrowth
15.5%8/10

15.5% revenue growth

Areas to Watch

CENX3 concerns · Avg: 2.7/10
Revenue GrowthGrowth
2.4%4/10

2.4% revenue growth

Free Cash FlowQuality
$-6.40M2/10

Negative free cash flow — burning cash

Altman Z-ScoreHealth
0.882/10

Distress zone — elevated risk

RIO2 concerns · Avg: 2.5/10
Piotroski F-ScoreQuality
1/93/10

Weak financial health signals

PEG RatioValuation
5.692/10

Expensive relative to growth rate

Comparative Analysis Report

WallStSmart Research

Bull Case : CENX

The strongest argument for CENX centers on PEG Ratio, Return on Equity, EPS Growth. PEG of 0.06 suggests the stock is reasonably priced for its growth.

Bull Case : RIO

The strongest argument for RIO centers on Return on Equity, Market Cap, P/E Ratio. Profitability is solid with margins at 19.6% and operating margin at 28.1%. Revenue growth of 15.5% demonstrates continued momentum.

Bear Case : CENX

The primary concerns for CENX are Revenue Growth, Free Cash Flow, Altman Z-Score.

Bear Case : RIO

The primary concerns for RIO are Piotroski F-Score, PEG Ratio.

Key Dynamics to Monitor

CENX profiles as a value stock while RIO is a growth play — different risk/reward profiles.

CENX carries more volatility with a beta of 1.97 — expect wider price swings.

RIO is growing revenue faster at 15.5% — sustainability is the question.

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

Bottom Line

CENX scores higher overall (70/100 vs 64/100). RIO offers better value entry with a 29.4% margin of safety. 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.

Century Aluminum Company

BASIC MATERIALS · ALUMINUM · USA

Century Aluminum Company produces standard quality and value-added primary aluminum products in the United States and Iceland. The company is headquartered in Chicago, Illinois.

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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