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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 2026-06-19, IBKR is overvalued at $96, with a DCF intrinsic value of $73 and a margin of safety of -31%. UNH is fairly valued at $401, with an intrinsic value of $376 and a margin of safety of -7%. Of the two, UNH has the wider margin of safety.

IBKR
Interactive Brokers Group, Inc.
$96.00
VS
UNH
UnitedHealth Group Incorporated
$400.96

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 41.2x is 88% above the historical average of 21.9x — the stock trades at a premium to its own history.
  • ⚠PEG ratio of 2.51 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
UNH
  • ⚠ROIC has declined by 6.9 percentage points over the past 4 years, which may signal competitive erosion.
  • ⚠Gross margin of 18.8% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • ⚠Free cash flow has declined at a 11.8% CAGR over the past 4 years — a concerning trend.

Key Valuation Metrics

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IBKR
UNH
Valuation
N/A
Free Cash Flow
$17.69B
N/A
FCF Yield
4.86%
41.20
Trailing P/E
30.17
33.37
Forward P/E
19.18
Quality & Moat
7.29%
ROIC
15.60%
23.56%
ROE
12.18%
93.02%
Gross Margin
18.80%
2.51
PEG Ratio
1.41
Balance Sheet Safety
Net cash
Net Debt / Equity
0.44
N/A
Interest Coverage
N/A
N/A
Net Debt / EBITDA
2.18
0.38%
Dividend Yield
2.21%
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
30.9% Overvalued
Price is 30.9% above estimated fair value
Current Price: $96.00
Fair Value: $73.33
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
UNH
6.6% Overvalued
Price is 6.6% above estimated fair value
Current Price: $400.96
Fair Value: $376.14
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 $401?

+14.1%
Market-Implied Owner Earnings Growth
Standard FCF implies +9.8%

The market implies +14.1% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +9.8%, 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 89.8%Retail & Other 7.5%
No. of Institutional Holders1,353
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 85.9%Retail & Other 13.8%
No. of Institutional Holders4,020
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
3
Buys (3M)
5
Buys (12M)
Total value (12M): $37,624
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)
HEMSLEY STEPHEN J
Chief Executive Officer
$25.02M
@ $288.57 · 2025-05-16
REX JOHN F
President
$5.00M
@ $291.12 · 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
FLYNN TIMOTHY PATRICK
Director
$511,575
@ $511.57 · 2025-01-17
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
1
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
1
Sells (3M)
1
Sells (12M)
Total value (12M): $284,000
CONWAY PATRICK HUGH M.D.
Officer
$284,000
@ $355.00 · 2026-04-23
CONWAY PATRICK HUGH M.D.
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
😏Greed(68/100)

"Market is optimistic — be cautious and ensure you have a margin of safety"

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
😏Greed(68/100)

"Market is optimistic — be cautious and ensure you have a margin of safety"

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: Greed (68)
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: Greed (68)
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 -6.6% margin of safety (intrinsic value $376 vs. price $401), compared to IBKR's -30.9% margin of safety (intrinsic $73 vs. $96).

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 15.6% ROIC versus IBKR's 7.3%. 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.