WallStSmart

T-Mobile US Inc (TMUS)vsWestern Digital Corporation (WDC)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

T-Mobile US Inc generates 669% more annual revenue ($90.53B vs $11.78B). WDC leads profitability with a 55.3% profit margin vs 11.7%. TMUS appears more attractively valued with a PEG of 0.77. WDC earns a higher WallStSmart Score of 79/100 (B+).

TMUS

Buy

62

out of 100

Grade: C+

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

WDC

Strong Buy

79

out of 100

Grade: B+

Growth: 7.3Profit: 9.5Value: 6.3Quality: 5.0
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

TMUSSignificantly Overvalued (-65.3%)

Margin of Safety

-65.3%

Fair Value

$134.28

Current Price

$194.42

$60.14 premium

UndervaluedFair: $134.28Overvalued

Intrinsic value data unavailable for WDC.

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

TMUS4 strengths · Avg: 8.5/10
Market CapQuality
$212.18B10/10

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

WDC6 strengths · Avg: 9.8/10
Return on EquityProfitability
85.9%10/10

Every $100 of equity generates 86 in profit

Profit MarginProfitability
55.3%10/10

Keeps 55 of every $100 in revenue as profit

Operating MarginProfitability
37.0%10/10

Strong operational efficiency at 37.0%

Revenue GrowthGrowth
45.5%10/10

Revenue surging 45.5% year-over-year

EPS GrowthGrowth
477.2%10/10

Earnings expanding 477.2% YoY

Market CapQuality
$152.47B9/10

Large-cap with strong market position

Areas to Watch

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

WDC2 concerns · Avg: 3.0/10
P/E RatioValuation
25.8x4/10

Moderate valuation

Price/BookValuation
21.2x2/10

Trading at 21.2x book value

Comparative Analysis Report

WallStSmart Research

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.

Bull Case : WDC

The strongest argument for WDC centers on Return on Equity, Profit Margin, Operating Margin. Profitability is solid with margins at 55.3% and operating margin at 37.0%. Revenue growth of 45.5% demonstrates continued momentum.

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.

Bear Case : WDC

The primary concerns for WDC are P/E Ratio, Price/Book.

Key Dynamics to Monitor

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

WDC carries more volatility with a beta of 2.16 — expect wider price swings.

WDC is growing revenue faster at 45.5% — sustainability is the question.

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

Bottom Line

WDC scores higher overall (79/100 vs 62/100), backed by strong 55.3% margins and 45.5% 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.

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.

Western Digital Corporation

TECHNOLOGY · COMPUTER HARDWARE · USA

Western Digital Corporation (WDC, commonly known as Western Digital or WD) is an American computer hard disk drive manufacturer and data storage company, headquartered in San Jose, California. It designs, manufactures and sells data technology products, including storage devices, data center systems and cloud storage services.

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