WallStSmart

Gogo Inc (GOGO)vsT-Mobile US Inc (TMUS)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

T-Mobile US Inc generates 9887% more annual revenue ($90.53B vs $906.50M). TMUS leads profitability with a 11.7% profit margin vs 1.5%. TMUS trades at a lower P/E of 20.1x. TMUS earns a higher WallStSmart Score of 62/100 (C+).

GOGO

Hold

44

out of 100

Grade: D

Growth: 6.0Profit: 5.5Value: 6.3Quality: 3.5
Piotroski: 2/9Altman Z: -0.14

TMUS

Buy

62

out of 100

Grade: C+

Growth: 4.0Profit: 7.0Value: 5.3Quality: 4.0
Piotroski: 4/9Altman Z: 1.04
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

GOGOUndervalued (+80.8%)

Margin of Safety

+80.8%

Fair Value

$20.46

Current Price

$3.93

$16.53 discount

UndervaluedFair: $20.46Overvalued
TMUSSignificantly Overvalued (-56.6%)

Margin of Safety

-56.6%

Fair Value

$113.97

Current Price

$177.02

$63.05 premium

UndervaluedFair: $113.97Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

GOGO0 strengths · Avg: 0/10

No standout strengths identified

TMUS4 strengths · Avg: 8.5/10
Market CapQuality
$204.35B10/10

Mega-cap, among the largest globally

PEG RatioValuation
0.748/10

Growing faster than its price suggests

Operating MarginProfitability
24.0%8/10

Strong operational efficiency at 24.0%

Free Cash FlowQuality
$4.60B8/10

Generating 4.6B in free cash flow

Areas to Watch

GOGO4 concerns · Avg: 3.3/10
P/E RatioValuation
37.9x4/10

Premium valuation, high expectations priced in

Market CapQuality
$512.55M3/10

Smaller company, higher risk/reward

Profit MarginProfitability
1.5%3/10

1.5% margin — thin

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

TMUS3 concerns · Avg: 1.7/10
EPS GrowthGrowth
-12.0%2/10

Earnings declined 12.0%

Altman Z-ScoreHealth
1.042/10

Distress zone — elevated risk

Debt/EquityHealth
2.111/10

Elevated debt levels

Comparative Analysis Report

WallStSmart Research

Bull Case : GOGO

GOGO has a balanced fundamental profile.

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 0.74 suggests the stock is reasonably priced for its growth.

Bear Case : GOGO

The primary concerns for GOGO are P/E Ratio, Market Cap, Profit Margin. Debt-to-equity of 7.54 is elevated, increasing financial risk. Thin 1.5% margins leave little buffer for downturns.

Bear Case : TMUS

The primary concerns for TMUS are EPS Growth, Altman Z-Score, Debt/Equity. Debt-to-equity of 2.11 is elevated, increasing financial risk.

Key Dynamics to Monitor

GOGO carries more volatility with a beta of 1.10 — 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 TELECOM SERVICES industry trends, competitive dynamics, and regulatory changes.

Bottom Line

TMUS scores higher overall (62/100 vs 44/100) and 10.6% revenue growth. GOGO offers better value entry with a 80.8% margin of safety. Both earn "Buy" and "Hold" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Gogo Inc

COMMUNICATION SERVICES · TELECOM SERVICES · USA

Gogo Inc., provides inflight broadband connectivity and wireless entertainment services to the aviation industry in the United States and internationally. The company is headquartered in Chicago, Illinois.

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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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