WallStSmart

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

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Rio Tinto ADR generates 2180% more annual revenue ($57.64B vs $2.53B). RIO leads profitability with a 17.3% profit margin vs 1.6%. CENX appears more attractively valued with a PEG of 0.06. RIO earns a higher WallStSmart Score of 54/100 (C-).

CENX

Hold

41

out of 100

Grade: D

Growth: 4.7Profit: 5.0Value: 4.7Quality: 5.0

RIO

Buy

54

out of 100

Grade: C-

Growth: 6.0Profit: 8.0Value: 4.7Quality: 5.0
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

CENXSignificantly Overvalued (-1768.5%)

Margin of Safety

-1768.5%

Fair Value

$2.86

Current Price

$50.19

$47.33 premium

UndervaluedFair: $2.86Overvalued
RIOSignificantly Overvalued (-136.9%)

Margin of Safety

-136.9%

Fair Value

$41.41

Current Price

$87.54

$46.13 premium

UndervaluedFair: $41.41Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

CENX2 strengths · Avg: 10.0/10
PEG RatioValuation
0.0610/10

Growing faster than its price suggests

Revenue GrowthGrowth
40.0%10/10

Revenue surging 40.0% year-over-year

RIO5 strengths · Avg: 8.2/10
Market CapQuality
$139.55B9/10

Large-cap with strong market position

P/E RatioValuation
14.1x8/10

Attractively priced relative to earnings

Price/BookValuation
2.3x8/10

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

CENX4 concerns · Avg: 2.5/10
Return on EquityProfitability
1.6%3/10

ROE of 1.6% — below average capital efficiency

Profit MarginProfitability
1.6%3/10

1.6% margin — thin

P/E RatioValuation
119.5x2/10

Premium valuation, high expectations priced in

EPS GrowthGrowth
-95.1%2/10

Earnings declined 95.1%

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 : CENX

The strongest argument for CENX centers on PEG Ratio, Revenue Growth. Revenue growth of 40.0% demonstrates continued momentum. PEG of 0.06 suggests the stock is reasonably priced for its growth.

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 : CENX

The primary concerns for CENX are Return on Equity, Profit Margin, P/E Ratio. A P/E of 119.5x leaves little room for execution misses. Thin 1.6% margins leave little buffer for downturns.

Bear Case : RIO

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

Key Dynamics to Monitor

CENX profiles as a hypergrowth stock while RIO is a mature play — different risk/reward profiles.

CENX carries more volatility with a beta of 2.12 — expect wider price swings.

CENX is growing revenue faster at 40.0% — sustainability is the question.

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

Bottom Line

RIO scores higher overall (54/100 vs 41/100), backed by strong 17.3% margins and 14.6% revenue growth. Both earn "Buy" and "Hold" 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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