WallStSmart

GlaxoSmithKline PLC ADR (GSK)vsT-Mobile US Inc (TMUS)

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Smart Verdict

WallStSmart Research — data-driven comparison

T-Mobile US Inc generates 176% more annual revenue ($90.53B vs $32.78B). GSK leads profitability with a 17.8% profit margin vs 11.7%. GSK appears more attractively valued with a PEG of 0.50. GSK earns a higher WallStSmart Score of 66/100 (B-).

GSK

Strong Buy

66

out of 100

Grade: B-

Growth: 4.7Profit: 9.0Value: 7.3Quality: 4.0
Piotroski: 5/9Altman Z: 1.26

TMUS

Buy

62

out of 100

Grade: C+

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

Multi-model valuation · Graham Formula

GSKFair Value (-3.1%)

Margin of Safety

-3.1%

Fair Value

$56.71

Current Price

$50.41

$6.30 premium

UndervaluedFair: $56.71Overvalued
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

GSK5 strengths · Avg: 9.4/10
PEG RatioValuation
0.5010/10

Growing faster than its price suggests

Return on EquityProfitability
40.9%10/10

Every $100 of equity generates 41 in profit

Operating MarginProfitability
36.3%10/10

Strong operational efficiency at 36.3%

Market CapQuality
$101.38B9/10

Large-cap with strong market position

P/E RatioValuation
13.1x8/10

Attractively priced relative to earnings

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

GSK3 concerns · Avg: 3.0/10
Revenue GrowthGrowth
1.5%4/10

1.5% revenue growth

Debt/EquityHealth
1.103/10

Elevated debt levels

Altman Z-ScoreHealth
1.262/10

Distress zone — elevated risk

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 : GSK

The strongest argument for GSK centers on PEG Ratio, Return on Equity, Operating Margin. Profitability is solid with margins at 17.8% and operating margin at 36.3%. PEG of 0.50 suggests the stock is reasonably priced for its growth.

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 : GSK

The primary concerns for GSK are Revenue Growth, Debt/Equity, Altman Z-Score.

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

TMUS carries more volatility with a beta of 0.32 — expect wider price swings.

TMUS is growing revenue faster at 10.6% — sustainability is the question.

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

Monitor DRUG MANUFACTURERS - GENERAL industry trends, competitive dynamics, and regulatory changes.

Bottom Line

GSK scores higher overall (66/100 vs 62/100), backed by strong 17.8% margins. 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.

GlaxoSmithKline PLC ADR

HEALTHCARE · DRUG MANUFACTURERS - GENERAL · USA

GlaxoSmithKline plc is dedicated to the creation, discovery, development, manufacture and marketing of pharmaceuticals, vaccines, over-the-counter drugs and health-related consumer products in the UK, US and internationally. The company is headquartered in Brentford, the United Kingdom.

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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