Montauk Renewables Inc (MNTK)vsRio Tinto ADR (RIO)
MNTK
Montauk Renewables Inc
$1.66
-2.35%
BASIC MATERIALS · Cap: $236.29M
RIO
Rio Tinto ADR
$100.69
-4.47%
BASIC MATERIALS · Cap: $168.54B
Smart Verdict
WallStSmart Research — data-driven comparison
Rio Tinto ADR generates 31884% more annual revenue ($57.64B vs $180.21M). RIO leads profitability with a 17.3% profit margin vs 1.2%. RIO trades at a lower P/E of 17.1x. RIO earns a higher WallStSmart Score of 54/100 (C-).
MNTK
Avoid35
out of 100
Grade: F
RIO
Buy54
out of 100
Grade: C-
Intrinsic Value Comparison
Multi-model valuation · Graham Formula
Margin of Safety
+65.9%
Fair Value
$5.10
Current Price
$1.66
$3.44 discount
Margin of Safety
+24.5%
Fair Value
$130.00
Current Price
$100.69
$29.31 discount
Key Strengths & Concerns
Side-by-side fundamental analysis
Key Strengths
Reasonable price relative to book value
Every $100 of equity generates 35 in profit
Large-cap with strong market position
Attractively priced relative to earnings
Reasonable price relative to book value
Strong operational efficiency at 25.3%
Generating 2.5B in free cash flow
Areas to Watch
Distress zone — elevated risk
Smaller company, higher risk/reward
ROE of 0.8% — below average capital efficiency
1.2% margin — thin
Weak financial health signals
Expensive relative to growth rate
Earnings declined 5.6%
Comparative Analysis Report
WallStSmart ResearchBull Case : MNTK
The strongest argument for MNTK centers on Price/Book.
Bull Case : RIO
The strongest argument for RIO centers on Return on Equity, Market Cap, P/E Ratio. Profitability is solid with margins at 17.3% and operating margin at 25.3%. Revenue growth of 14.6% demonstrates continued momentum.
Bear Case : MNTK
The primary concerns for MNTK are Altman Z-Score, Market Cap, Return on Equity. A P/E of 166.0x leaves little room for execution misses. Thin 1.2% margins leave little buffer for downturns.
Bear Case : RIO
The primary concerns for RIO are Piotroski F-Score, PEG Ratio, EPS Growth.
Key Dynamics to Monitor
MNTK profiles as a value stock while RIO is a mature play — different risk/reward profiles.
RIO carries more volatility with a beta of 0.65 — 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 35/100), backed by strong 17.3% margins and 14.6% revenue growth. MNTK offers better value entry with a 65.9% margin of safety. Both earn "Buy" and "Avoid" ratings respectively — the choice depends on your investment horizon and risk tolerance.
This analysis is generated from publicly available financial data. Not financial advice.
Montauk Renewables Inc
BASIC MATERIALS · SPECIALTY CHEMICALS · USA
Montauk Renewables, Inc., a renewable energy company, is dedicated to the recovery and processing of biogas from landfills and other non-fossil fuel sources. The company is headquartered in Pittsburgh, Pennsylvania.
Visit Website →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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