WallStSmart

Green Plains Renewable Energy Inc (GPRE)vsRio Tinto ADR (RIO)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Rio Tinto ADR generates 2656% more annual revenue ($57.64B vs $2.09B). RIO leads profitability with a 17.3% profit margin vs -5.8%. GPRE appears more attractively valued with a PEG of 1.16. RIO earns a higher WallStSmart Score of 54/100 (C-).

GPRE

Hold

42

out of 100

Grade: D

Growth: 2.0Profit: 2.0Value: 7.0Quality: 5.0

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

GPREUndervalued (+68.6%)

Margin of Safety

+68.6%

Fair Value

$49.32

Current Price

$17.25

$32.07 discount

UndervaluedFair: $49.32Overvalued
RIOUndervalued (+14.1%)

Margin of Safety

+14.1%

Fair Value

$114.19

Current Price

$100.48

$13.71 discount

UndervaluedFair: $114.19Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

GPRE1 strengths · Avg: 8.0/10
Price/BookValuation
1.6x8/10

Reasonable price relative to book value

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

GPRE4 concerns · Avg: 2.3/10
Market CapQuality
$1.15B3/10

Smaller company, higher risk/reward

Return on EquityProfitability
-14.7%2/10

ROE of -14.7% — below average capital efficiency

Revenue GrowthGrowth
-26.6%2/10

Revenue declined 26.6%

EPS GrowthGrowth
-75.5%2/10

Earnings declined 75.5%

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 : GPRE

The strongest argument for GPRE centers on Price/Book. PEG of 1.16 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 : GPRE

The primary concerns for GPRE are Market Cap, Return on Equity, Revenue Growth.

Bear Case : RIO

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

Key Dynamics to Monitor

GPRE profiles as a turnaround stock while RIO is a mature play — different risk/reward profiles.

GPRE carries more volatility with a beta of 1.31 — expect wider price swings.

RIO is growing revenue faster at 14.6% — 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 42/100), backed by strong 17.3% margins and 14.6% revenue growth. GPRE offers better value entry with a 68.6% margin of safety. 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.

Green Plains Renewable Energy Inc

BASIC MATERIALS · CHEMICALS · USA

Green Plains Inc. produces, markets, and distributes ethanol in the United States and internationally. The company is headquartered in Omaha, Nebraska.

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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