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Compare Stocks › IBKR vs UNH

Interactive Brokers Group, Inc. (IBKR) vs UnitedHealth Group Incorporated (UNH): Which Is the Better Buy in 2026?

As of 2026-08-03, IBKR is overvalued at $88, with a DCF intrinsic value of $72 and a margin of safety of -21%. UNH is overvalued at $414, with an intrinsic value of $371 and a margin of safety of -12%. Of the two, UNH has the wider margin of safety.

IBKR
Interactive Brokers Group, Inc.
$87.99
VS
UNH
UnitedHealth Group Incorporated
$414.40

Rewards

IBKR
  • ★Interactive Brokers Group, Inc. has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
  • ★Gross margin of 93.0% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • ★Interactive Brokers Group, Inc. scores 81/100 on the Economic Moat Score (Wide Moat), with roic consistency as the strongest competitive dimension.
UNH
  • ★UnitedHealth Group Incorporated scores 73/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.

Risks

IBKR
  • ⚠Despite buyback spending, shares outstanding increased in 3 out of 4 years — stock-based compensation is offsetting repurchases.
  • ⚠Trailing P/E of 34.9x is 59% above the historical average of 21.9x — the stock trades at a premium to its own history.
  • ⚠Altman Z-Score of 0.43 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
UNH
  • ⚠ROIC has declined by 6.9 percentage points over the past 4 years, which may signal competitive erosion.
  • ⚠Gross margin of 19.5% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • ⚠FCF yield of 6.0% suggests reasonable valuation assuming continued moderate growth.

Key Valuation Metrics

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IBKR
UNH
Valuation
N/A
Free Cash Flow
$22.76B
N/A
FCF Yield
6.05%
34.92
Trailing P/E
31.25
27.57
Forward P/E
18.47
Quality & Moat
6.11%
ROIC
14.15%
24.02%
ROE
14.15%
93.04%
Gross Margin
19.51%
1.69
PEG Ratio
1.28
Balance Sheet Safety
Net cash
Net Debt / Equity
0.40
N/A
Interest Coverage
N/A
N/A
Net Debt / EBITDA
1.73
0.40%
Dividend Yield
2.24%
IBKR: 3Ties: 1UNH: 5
IBKRUNH

Historical Fundamentals

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IBKR

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

UNH

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

$1 Retained Earnings Test

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IBKR
$10.24
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$2.07B
Δ Market Cap
+$21.20B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
UNH
$-7.37
created per $1 retained over 3 years
Market Cap Declined
Σ Retained
$26.63B
Δ Market Cap
$-196.16B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer

Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer

Discounted Cash Flow (DCF) Analysis

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IBKR
21.4% Overvalued
Price is 21.4% above estimated fair value
Current Price: $87.99
Fair Value: $72.46
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
UNH
11.7% Overvalued
Price is 11.7% above estimated fair value
Current Price: $414.40
Fair Value: $370.88
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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IBKR

Requires positive FCF to compute implied growth rate.

UNH

What growth rate is the market pricing in at $414?

+14.4%
Market-Implied Owner Earnings Growth
Standard FCF implies +6.6%

The market implies +14.4% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +6.6%, reflecting heavy growth investment.

Economic Moat Score

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IBKR
81/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat driven primarily by roic consistency. Revenue Predictability is the area most vulnerable to competitive pressure.

Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 5 years of fundamental data.
UNH
73/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat driven primarily by revenue predictability. Margin Stability is the area most vulnerable to competitive pressure.

Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 4 years of fundamental data.

Forensic Accounting

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IBKR
-2.34
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone

M-Score Trend

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
UNH
-2.45
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone

M-Score Trend

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.

Ownership Breakdown

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IBKR
Insiders 2.7%Institutions 88.2%Retail & Other 9.1%
No. of Institutional Holders1,407
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.
UNH
Insiders 0.2%Institutions 86.1%Retail & Other 13.6%
No. of Institutional Holders4,164
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.

High insider ownership aligns management incentives with shareholders. Institutional concentration can indicate smart-money conviction but also crowding risk.

Insider Buying Activity

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IBKR
2
Buys (3M)
6
Buys (12M)
Total value (12M): $39,825
CONKLING LORI A
Director
$2,201
@ $88.04 · 2026-07-01
CONKLING LORI A
Director
$2,152
@ $86.08 · 2026-06-01
CONKLING LORI A
Director
$1,991
@ $79.64 · 2026-05-01
CONKLING LORI A
Director
$1,710
@ $68.40 · 2026-04-01
CONKLING LORI A
Director
$5,391
@ $71.88 · 2026-03-02
BRIGHT JILL
Director
$26,380
@ $65.95 · 2025-10-23
BRIGHT JILL
Director
$29,634
@ $219.51 · 2025-01-31
Open market purchases · includes direct & indirect ownership · excludes option exercises
UNH
0
Buys (3M)
0
Buys (12M)
REX JOHN F
President
$5.00M
@ $291.12 · 2025-05-16
HEMSLEY STEPHEN J
Chief Executive Officer
$25.02M
@ $288.57 · 2025-05-16
GIL KRISTEN
Director
$1.00M
@ $271.17 · 2025-05-15
FLYNN TIMOTHY PATRICK
Director
$491,786
@ $320.80 · 2025-05-14
NOSEWORTHY JOHN H
Director
$93,647
@ $312.16 · 2025-05-14
Open market purchases · includes direct & indirect ownership · excludes option exercises

Open market purchases · includes direct & indirect ownership · excludes option exercises.

Insider Selling Activity

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IBKR
0
Sells (3M)
4
Sells (12M)
Total value (12M): $5.77M
HARRIS LAWRENCE E
Director
$2.00M
@ $76.93 · 2026-04-28
HARRIS LAWRENCE E
Director
$734,505
@ $69.00 · 2025-10-29
HARRIS LAWRENCE E
Director
$996,998
@ $69.45 · 2025-10-28
HARRIS LAWRENCE E
Director
$2.04M
@ $67.86 · 2025-10-24
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
UNH
0
Sells (3M)
1
Sells (12M)
Total value (12M): $284,000
CONWAY PATRICK HUGH
Officer
$284,000
@ $355.00 · 2026-04-23
CONWAY PATRICK HUGH
Chief Executive Officer
$179,645
@ $305.00 · 2025-06-10
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives

Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.

🎭 Mr. Market's Mood

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IBKR
FearGreed
😐Neutral(53/100)

"Market is pricing this stock without strong emotion in either direction"

Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
UNH
FearGreed
😐Neutral(57/100)

"Market is pricing this stock without strong emotion in either direction"

Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.

Composite sentiment score based on market signals. Inspired by Buffett’s "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.

⚖️ Buffett Signal

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IBKR
⚪Awaiting DCF Data

The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.

DCF Margin of Safety: N/AMr. Market's Mood: Neutral (53)
UNH
⚪Awaiting DCF Data

The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.

DCF Margin of Safety: N/AMr. Market's Mood: Neutral (57)
View IBKR Full AnalysisView UNH Full Analysis

Frequently Asked Questions: IBKR vs UNH

Is Interactive Brokers Group, Inc. or UnitedHealth Group Incorporated more undervalued in 2026?▼

Based on our discounted cash flow model, UNH trades at a -11.7% margin of safety (intrinsic value $371 vs. price $414), compared to IBKR's -21.4% margin of safety (intrinsic $72 vs. $88).

Which stock has a wider economic moat, Interactive Brokers Group, Inc. or UnitedHealth Group Incorporated?▼

IBKR scores 81/100 (Wide moat), while UNH scores 73/100 (Wide moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is Interactive Brokers Group, Inc. in financial distress?▼

IBKR's Altman Z-Score of 0.4 places it in the Distress zone, signaling elevated bankruptcy risk. UNH scores 2.9 (Grey zone). The Altman Z-Score is a five-factor model that predicts insolvency within two years; scores below 1.81 indicate significant distress.

Which stock has higher return on invested capital, Interactive Brokers Group, Inc. or UnitedHealth Group Incorporated?▼

UNH earns 14.1% ROIC versus IBKR's 6.1%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.

Which dividend is safer, Interactive Brokers Group, Inc.'s or UnitedHealth Group Incorporated's?▼

IBKR's dividend earns a safety score of 94/100 (Very Safe), compared to UNH's 84/100 (Very Safe). IBKR has raised its dividend for 3 consecutive years.