Compare StocksPFE vs SNDK

Pfizer, Inc. (PFE) vs Sandisk Corporation (SNDK): Which Is the Better Buy in 2026?

As of 2026-08-03, PFE is undervalued at $25, with a DCF intrinsic value of $127985960274 and a margin of safety of 100%. SNDK is fairly valued at $1215, with an intrinsic value of $1183 and a margin of safety of -3%. Of the two, PFE has the wider margin of safety.

PFE
Pfizer, Inc.
$25.01
VS
SNDK
Sandisk Corporation
$1214.83

Rewards

PFE
  • Gross margin of 74.8% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Trailing P/E of 19.1x is 37% below the historical average of 30.4x — potentially undervalued relative to its own history.
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.

Risks

PFE
  • ROIC has declined by 15.9 percentage points over the past 4 years, which may signal competitive erosion.
  • PEG ratio of 2.94 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
  • Altman Z-Score of 1.38 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
SNDK
  • FCF yield of 1.3% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • 5 insider sales totaling $10.2M with no purchases in the past 3 months — insiders are reducing their exposure.

Key Valuation Metrics

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PFE
SNDK
Valuation
$12.38B
Free Cash Flow
$2.26B
N/A
FCF Yield
1.26%
19.09
Trailing P/E
41.49
8.85
Forward P/E
5.70
Quality & Moat
10.19%
ROIC
52.14%
8.31%
ROE
39.30%
74.80%
Gross Margin
56.04%
2.94
PEG Ratio
N/A
Balance Sheet Safety
0.57
Net Debt / Equity
Net cash
N/A
Interest Coverage
N/A
2.03
Net Debt / EBITDA
-0.63
6.88%
Dividend Yield
0.00%
PFE: 4Ties: 1SNDK: 5
PFESNDK

Historical Fundamentals

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PFE

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.

SNDK
No data available for this metric.

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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PFE
N/A
Net losses over 3 years — test not applicable
Company had negative cumulative retained earnings
Σ Retained
$-10.61B
Δ Market Cap
$-26.34
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
SNDK
Not enough historical data to compute the retained earnings test.

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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PFE
100.0% Margin of Safety
Price is 100.0% below estimated fair value
Current Price: $25.01
Fair Value: $127985960274.09
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
SNDK
2.7% Overvalued
Price is 2.7% above estimated fair value
Current Price: $1214.83
Fair Value: $1182.70
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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PFE

What growth rate is the market pricing in at $25?

-14.2%
Market-Implied Owner Earnings Growth
Standard FCF implies -15.0%

The market implies -14.2% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding -15.0%, reflecting heavy growth investment.

SNDK

What growth rate is the market pricing in at $1215?

+26.4%
Market-Implied FCF Growth Rate

Market pricing in significantly higher growth than history — aggressive.

Economic Moat Score

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PFE
35/100
No Moat
70+ Wide · 40-69 Narrow · <40 None

No durable moat detected, though reinvestment efficiency shows some competitive positioning. The business lacks consistent evidence of sustainable advantages.

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.
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.

Forensic Accounting

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PFE
-2.53
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.
SNDK

Insufficient data for Beneish M-Score calculation (requires 2+ years).

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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PFE
Insiders 0.1%Institutions 69.5%Retail & Other 30.4%
No. of Institutional Holders3,661
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.
SNDK
Insiders 1.2%Institutions 79.8%Retail & Other 19.0%
No. of Institutional Holders1,898
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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PFE
0
Buys (3M)
0
Buys (12M)
BLAYLOCK RONALD E
Director
$499,072
@ $25.65 · 2025-02-13
GOTTLIEB SCOTT
Director
$28,240
@ $28.24 · 2024-10-30
Open market purchases · includes direct & indirect ownership · excludes option exercises
SNDK
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
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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PFE
1
Sells (3M)
1
Sells (12M)
Total value (12M): $51,400
DAMICO JENNIFER B.
Officer
$51,400
@ $25.70 · 2026-06-09
DAMICO JENNIFER B.
Officer
$64,825
@ $25.93 · 2025-03-04
DAMICO JENNIFER B.
Officer
$147,714
@ $28.66 · 2024-08-13
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
SNDK
5
Sells (3M)
7
Sells (12M)
Total value (12M): $12.61M
SHEK BERNARD
Officer
$1.25M
@ $2088.00 · 2026-07-01
SHEK BERNARD
Officer
$1.04M
@ $1736.00 · 2026-06-03
ILKBAHAR ALPER
Chief Technology Officer
$3.51M
@ $1756.58 · 2026-06-01
POKORNY MICHAEL
Officer
$3.49M
@ $1426.18 · 2026-05-12
SAYINER NECIP
Director
$870,301
@ $1503.11 · 2026-05-08
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

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

🎭 Mr. Market's Mood

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PFE
FearGreed
😐Neutral(52/100)

"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.
SNDK
FearGreed
😨Fear(29/100)

"Market is pessimistic — investigate whether fears are temporary or structural"

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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PFE
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 (52)
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: Fear (29)
View PFE Full AnalysisView SNDK Full Analysis

Frequently Asked Questions: PFE vs SNDK

Is Pfizer, Inc. or Sandisk Corporation more undervalued in 2026?

Based on our discounted cash flow model, PFE trades at a 100.0% margin of safety (intrinsic value $127985960274 vs. price $25), compared to SNDK's -2.7% margin of safety (intrinsic $1183 vs. $1215).

Which stock has a wider economic moat, Pfizer, Inc. or Sandisk Corporation?

SNDK scores 47/100 (Narrow moat), while PFE scores 35/100 (None moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is Pfizer, Inc. in financial distress?

PFE's Altman Z-Score of 1.4 places it in the Distress zone, signaling elevated bankruptcy risk. SNDK scores 6.4 (Safe 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, Pfizer, Inc. or Sandisk Corporation?

SNDK earns 52.1% ROIC versus PFE's 10.2%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.

PFE vs SNDK: Which Is the Better Buy in 2026? | SafetyMargin.io