Compare StocksSNDK vs UNH

Sandisk Corporation (SNDK) vs UnitedHealth Group Incorporated (UNH)

SNDK
Sandisk Corporation
$1265.86
VS
UNH
UnitedHealth Group Incorporated
$369.48

Rewards

SNDK
  • Altman Z-Score of 6.36 indicates very low bankruptcy risk — the company is firmly in the safe zone.
  • Net debt/EBITDA of -0.6x means the company holds more cash than debt — a net cash position.
UNH
  • Dividend yield of 2.40% with a consistent or growing payout over the past 4 years.

Risks

SNDK
  • FCF yield of 1.2% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • Insiders have sold $2.2M worth of stock in the past 3 months — significant insider liquidation.
UNH
  • ROIC has declined by 7.9 percentage points over the observed period, which may signal competitive erosion.
  • Gross margin of 18.8% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • FCF yield of 5.3% suggests reasonable valuation assuming continued moderate growth.

Key Valuation Metrics

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SNDK
UNH
Valuation
$2.26B
Free Cash Flow
$17.69B
1.21%
FCF Yield
5.27%
43.17
Trailing P/E
27.91
7.61
Forward P/E
17.80
Quality & Moat
52.14%
ROIC
15.60%
-11.92%
ROE
11.45%
56.04%
Gross Margin
18.80%
N/A
PEG Ratio
39.87
Balance Sheet Safety
0.02
Debt / Equity
0.74
N/A
Interest Coverage
N/A
-0.63
Net Debt / EBITDA
2.18
N/A
Dividend Yield
2.40%
SNDK: 5Ties: 1UNH: 4
SNDKUNH

Historical Fundamentals

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SNDK
No data available for this metric.
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.

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

$1 Retained Earnings Test

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SNDK
Not enough historical data to compute the retained earnings test.
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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SNDK
11.6% Overvalued
Price is 11.6% above estimated fair value
Current Price: $1265.86
Fair Value: $1133.80
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
UNH
9.9% Overvalued
Price is 9.9% above estimated fair value
Current Price: $369.48
Fair Value: $336.33
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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SNDK

What growth rate is the market pricing in at $1266?

+27.0%
Market-Implied FCF Growth Rate

Market pricing in significantly higher growth than history — aggressive.

UNH

What growth rate is the market pricing in at $369?

+14.0%
Market-Implied Owner Earnings Growth
Standard FCF implies +8.8%

The market implies +14.0% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +8.8%, reflecting heavy growth investment.

Economic Moat Score

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SNDK
47/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with revenue predictability as the key competitive advantage. Improving roic consistency would strengthen the moat.

Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 3 years of fundamental data.
UNH
64/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with revenue predictability as the key competitive advantage. Improving margin stability would strengthen the moat.

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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SNDK
-3.69
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone
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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SNDK
Insiders 5.5%Institutions 83.5%Retail & Other 11.0%
No. of Institutional Holders1,187
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 0.8%Institutions 84.7%Retail & Other 14.5%
No. of Institutional Holders4,077
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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SNDK
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
UNH
0
Buys (3M)
5
Buys (12M)
Total value (12M): $31.61M
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
NOSEWORTHY JOHN H
Director
$93,647
@ $312.16 · 2025-05-14
FLYNN TIMOTHY PATRICK
Director
$491,786
@ $320.80 · 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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SNDK
1
Sells (3M)
2
Sells (12M)
Total value (12M): $2.44M
SUZUKI MIYUKI
Director
$2.20M
@ $627.53 · 2026-02-25
SAYINER NECIP
Director
$248,027
@ $195.14 · 2025-12-03
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
UNH
1
Sells (3M)
2
Sells (12M)
Total value (12M): $463,645
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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SNDK
FearGreed
😏Greed(63/100)

"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(65/100)

"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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SNDK
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 (63)
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 (65)
View SNDK Full AnalysisView UNH Full Analysis
SNDK vs UNH: Which Is the Better Buy? | SafetyMargin.io