WallStSmart

Ero Copper Corp (ERO)vsT-Mobile US Inc (TMUS)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

T-Mobile US Inc generates 9698% more annual revenue ($90.53B vs $923.93M). ERO leads profitability with a 31.6% profit margin vs 11.7%. ERO trades at a lower P/E of 9.7x. ERO earns a higher WallStSmart Score of 78/100 (B+).

ERO

Strong Buy

78

out of 100

Grade: B+

Growth: 10.0Profit: 9.5Value: 7.0Quality: 5.0

TMUS

Buy

62

out of 100

Grade: C+

Growth: 4.0Profit: 7.0Value: 5.3Quality: 4.0
Piotroski: 4/9Altman Z: 1.06
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

EROUndervalued (+7.2%)

Margin of Safety

+7.2%

Fair Value

$33.93

Current Price

$28.48

$5.45 discount

UndervaluedFair: $33.93Overvalued
TMUSSignificantly Overvalued (-65.0%)

Margin of Safety

-65.0%

Fair Value

$134.49

Current Price

$193.63

$59.14 premium

UndervaluedFair: $134.49Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

ERO6 strengths · Avg: 9.7/10
P/E RatioValuation
9.7x10/10

Attractively priced relative to earnings

Return on EquityProfitability
32.5%10/10

Every $100 of equity generates 33 in profit

Profit MarginProfitability
31.6%10/10

Keeps 32 of every $100 in revenue as profit

Operating MarginProfitability
34.7%10/10

Strong operational efficiency at 34.7%

Revenue GrowthGrowth
110.4%10/10

Revenue surging 110.4% year-over-year

Price/BookValuation
2.7x8/10

Reasonable price relative to book value

TMUS4 strengths · Avg: 8.5/10
Market CapQuality
$210.16B10/10

Mega-cap, among the largest globally

PEG RatioValuation
0.778/10

Growing faster than its price suggests

Operating MarginProfitability
21.5%8/10

Strong operational efficiency at 21.5%

Free Cash FlowQuality
$4.60B8/10

Generating 4.6B in free cash flow

Areas to Watch

ERO0 concerns · Avg: 0/10

No major concerns identified

TMUS3 concerns · Avg: 2.3/10
Debt/EquityHealth
1.993/10

Elevated debt levels

EPS GrowthGrowth
-12.0%2/10

Earnings declined 12.0%

Altman Z-ScoreHealth
1.062/10

Distress zone — elevated risk

Comparative Analysis Report

WallStSmart Research

Bull Case : ERO

The strongest argument for ERO centers on P/E Ratio, Return on Equity, Profit Margin. Profitability is solid with margins at 31.6% and operating margin at 34.7%. Revenue growth of 110.4% demonstrates continued momentum.

Bull Case : TMUS

The strongest argument for TMUS centers on Market Cap, PEG Ratio, Operating Margin. Revenue growth of 10.6% demonstrates continued momentum. PEG of 0.77 suggests the stock is reasonably priced for its growth.

Bear Case : ERO

No major red flags identified for ERO, but monitor valuation.

Bear Case : TMUS

The primary concerns for TMUS are Debt/Equity, EPS Growth, Altman Z-Score. Debt-to-equity of 1.99 is elevated, increasing financial risk.

Key Dynamics to Monitor

ERO profiles as a growth stock while TMUS is a value play — different risk/reward profiles.

ERO carries more volatility with a beta of 1.56 — expect wider price swings.

ERO is growing revenue faster at 110.4% — sustainability is the question.

TMUS generates stronger free cash flow (4.6B), providing more financial flexibility.

Bottom Line

ERO scores higher overall (78/100 vs 62/100), backed by strong 31.6% margins and 110.4% revenue growth. 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.

Ero Copper Corp

BASIC MATERIALS · COPPER · USA

Ero Copper Corp. The company is headquartered in Vancouver, Canada.

T-Mobile US Inc

COMMUNICATION SERVICES · TELECOM SERVICES · USA

T-Mobile US, Inc., doing business under the global brand name T-Mobile, is an American wireless network operator. Its headquarters are located in Bellevue, Washington, in the Seattle metropolitan area and Overland Park, Kansas, in the Kansas City metropolitan area.

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