WallStSmart

Arm Holdings plc American Depositary Shares (ARM)vsT-Mobile US Inc (TMUS)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

T-Mobile US Inc generates 1791% more annual revenue ($88.31B vs $4.67B). ARM leads profitability with a 17.2% profit margin vs 12.4%. TMUS appears more attractively valued with a PEG of 0.80. TMUS earns a higher WallStSmart Score of 60/100 (C).

ARM

Buy

52

out of 100

Grade: C-

Growth: 6.0Profit: 7.0Value: 4.7Quality: 7.8
Piotroski: 5/9Altman Z: 3.75

TMUS

Buy

60

out of 100

Grade: C

Growth: 4.0Profit: 7.0Value: 7.3Quality: 5.5
Piotroski: 4/9Altman Z: 1.06
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

ARMSignificantly Overvalued (-2323.2%)

Margin of Safety

-2323.2%

Fair Value

$5.17

Current Price

$157.07

$151.90 premium

UndervaluedFair: $5.17Overvalued
TMUSSignificantly Overvalued (-235.8%)

Margin of Safety

-235.8%

Fair Value

$66.10

Current Price

$211.36

$145.26 premium

UndervaluedFair: $66.10Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

ARM3 strengths · Avg: 9.0/10
Altman Z-ScoreHealth
3.7510/10

Safe zone — low bankruptcy risk

Market CapQuality
$143.33B9/10

Large-cap with strong market position

Revenue GrowthGrowth
26.3%8/10

Revenue surging 26.3% year-over-year

TMUS3 strengths · Avg: 8.7/10
Market CapQuality
$236.30B10/10

Mega-cap, among the largest globally

PEG RatioValuation
0.808/10

Growing faster than its price suggests

Free Cash FlowQuality
$4.18B8/10

Generating 4.2B in free cash flow

Areas to Watch

ARM4 concerns · Avg: 2.5/10
PEG RatioValuation
1.904/10

Expensive relative to growth rate

P/E RatioValuation
177.6x2/10

Premium valuation, high expectations priced in

Price/BookValuation
21.4x2/10

Trading at 21.4x book value

EPS GrowthGrowth
-12.3%2/10

Earnings declined 12.3%

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

Elevated debt levels

EPS GrowthGrowth
-26.6%2/10

Earnings declined 26.6%

Altman Z-ScoreHealth
1.062/10

Distress zone — elevated risk

Comparative Analysis Report

WallStSmart Research

Bull Case : ARM

The strongest argument for ARM centers on Altman Z-Score, Market Cap, Revenue Growth. Profitability is solid with margins at 17.2% and operating margin at 15.4%. Revenue growth of 26.3% demonstrates continued momentum.

Bull Case : TMUS

The strongest argument for TMUS centers on Market Cap, PEG Ratio, Free Cash Flow. Revenue growth of 11.3% demonstrates continued momentum. PEG of 0.80 suggests the stock is reasonably priced for its growth.

Bear Case : ARM

The primary concerns for ARM are PEG Ratio, P/E Ratio, Price/Book. A P/E of 177.6x leaves little room for execution misses.

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

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

ARM carries more volatility with a beta of 4.13 — expect wider price swings.

ARM is growing revenue faster at 26.3% — sustainability is the question.

TMUS generates stronger free cash flow (4.2B), providing more financial flexibility.

Bottom Line

TMUS scores higher overall (60/100 vs 52/100) and 11.3% revenue growth. Both earn "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.

Arm Holdings plc American Depositary Shares

TECHNOLOGY · SEMICONDUCTORS · USA

Arm Holdings plc architects, develops, and licenses central processing unit products and related technologies for semiconductor companies and original equipment manufacturers rely on to develop products.

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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