WallStSmart

Interactive Brokers Group Inc (IBKR)vsT-Mobile US Inc (TMUS)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

T-Mobile US Inc generates 1305% more annual revenue ($90.53B vs $6.45B). IBKR leads profitability with a 16.1% profit margin vs 11.7%. TMUS appears more attractively valued with a PEG of 0.77. IBKR earns a higher WallStSmart Score of 64/100 (C+).

IBKR

Buy

64

out of 100

Grade: C+

Growth: 8.7Profit: 7.5Value: 4.3Quality: 5.3
Piotroski: 2/9

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

Intrinsic value data unavailable for IBKR.

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

IBKR6 strengths · Avg: 9.0/10
Operating MarginProfitability
76.8%10/10

Strong operational efficiency at 76.8%

Debt/EquityHealth
0.0010/10

Conservative balance sheet, low leverage

Market CapQuality
$143.52B9/10

Large-cap with strong market position

Return on EquityProfitability
23.6%9/10

Every $100 of equity generates 24 in profit

Revenue GrowthGrowth
16.8%8/10

16.8% revenue growth

EPS GrowthGrowth
21.6%8/10

Earnings expanding 21.6% YoY

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

IBKR3 concerns · Avg: 3.7/10
PEG RatioValuation
2.354/10

Expensive relative to growth rate

P/E RatioValuation
36.2x4/10

Premium valuation, high expectations priced in

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

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 : IBKR

The strongest argument for IBKR centers on Operating Margin, Debt/Equity, Market Cap. Profitability is solid with margins at 16.1% and operating margin at 76.8%. Revenue growth of 16.8% 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 : IBKR

The primary concerns for IBKR are PEG Ratio, P/E Ratio, Piotroski F-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

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

IBKR carries more volatility with a beta of 1.32 — expect wider price swings.

IBKR is growing revenue faster at 16.8% — sustainability is the question.

Monitor CAPITAL MARKETS industry trends, competitive dynamics, and regulatory changes.

Bottom Line

IBKR scores higher overall (64/100 vs 62/100), backed by strong 16.1% margins and 16.8% 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.

Interactive Brokers Group Inc

FINANCIAL SERVICES · CAPITAL MARKETS · USA

Interactive Brokers Group, Inc. is a global automated electronic broker. The company is headquartered in Greenwich, Connecticut.

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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