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Compare Stocks › PFE vs WRB

Pfizer Inc. (PFE) vs W. R. Berkley Corporation (WRB): Which Is the Better Buy in 2026?

As of 2026-11-01, PFE is overvalued at $31, with a DCF intrinsic value of $22 and a margin of safety of -36%. WRB is fairly valued at $74, with an intrinsic value of $76 and a margin of safety of 2%. Of the two, WRB has the wider margin of safety.

PFE
Pfizer Inc.
$30.52
VS
WRB
W. R. Berkley Corporation
$73.86

Rewards

PFE
  • ★Gross margin of 74.7% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • ★Insiders have bought $3.0M worth of stock in the past 3 months — significant skin in the game.
WRB
  • ★W. R. Berkley Corporation scores 99/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
  • ★Free cash flow has grown at a 10.7% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • ★Each dollar of retained earnings has created $1.38 of earning power — management is creating shareholder value.

Risks

PFE
  • ⚠ROIC has declined by 15.9 percentage points over the past 4 years, which may signal competitive erosion.
  • ⚠FCF yield of 7.2% suggests reasonable valuation assuming continued moderate growth.
  • ⚠Trailing P/E of 40.2x is 32% above the historical average of 30.4x — the stock trades at a premium to its own history.
WRB
  • ⚠PEG ratio of 4.86 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 1.22 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.

Key Valuation Metrics

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PFE
WRB
Valuation
$12.49B
Free Cash Flow
N/A
7.18%
FCF Yield
N/A
40.16
Trailing P/E
15.62
10.57
Forward P/E
15.22
Quality & Moat
9.42%
ROIC
14.58%
5.01%
ROE
18.08%
74.72%
Gross Margin
43.60%
13.98
PEG Ratio
4.86
Balance Sheet Safety
0.61
Net Debt / Equity
Net cash
N/A
Interest Coverage
N/A
2.04
Net Debt / EBITDA
-0.32
5.64%
Dividend Yield
0.54%
PFE: 3Ties: 1WRB: 6
PFEWRB

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.

WRB

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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PFE
N/A
Net losses over 3 years — test not applicable
Company had negative cumulative retained earnings
Σ Retained
$-10.61B
Δ Market Cap
$-146.18B
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
WRB
$2.28
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$3.18B
Δ Market Cap
+$7.25B
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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PFE
36.1% Overvalued
Price is 36.1% above estimated fair value
Current Price: $30.52
Fair Value: $22.43
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
WRB
2.2% Margin of Safety
Price is 2.2% below estimated fair value
Current Price: $73.86
Fair Value: $75.52
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 $31?

+7.2%
Market-Implied Owner Earnings Growth
Standard FCF implies +6.3%

The market implies +7.2% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +6.3%, reflecting heavy growth investment.

WRB

Requires positive FCF to compute implied growth rate.

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.
WRB
99/100
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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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.
WRB
-2.63
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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PFE
Insiders 0.1%Institutions 69.1%Retail & Other 30.8%
No. of Institutional Holders3,681
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.
WRB
Insiders 26.3%Institutions 75.6%
No. of Institutional Holders1,296
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
3
Buys (3M)
3
Buys (12M)
Total value (12M): $2.96M
BOURLA ALBERT
Chief Executive Officer
$1.00M
@ $26.34 · 2026-08-12
BUCKLEY MORTIMER J.
Director
$960,369
@ $25.52 · 2026-08-05
BLAYLOCK RONALD E
Director
$998,821
@ $25.46 · 2026-08-05
BLAYLOCK RONALD E
Director
$499,072
@ $25.65 · 2025-02-13
Open market purchases · includes direct & indirect ownership · excludes option exercises
WRB
0
Buys (3M)
19
Buys (12M)
Total value (12M): $665.29M
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$18.75M
@ $72.61 · 2026-03-03
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$21.49M
@ $71.65 · 2026-02-27
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$39.38M
@ $71.13 · 2026-02-25
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$35.74M
@ $70.70 · 2026-02-20
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$2.84M
@ $70.93 · 2026-02-13
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$6.83M
@ $69.68 · 2026-02-11
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$2.84M
@ $70.88 · 2026-02-06
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$21.45M
@ $68.05 · 2026-02-04
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$33.09M
@ $68.22 · 2026-01-30
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$69.30M
@ $67.35 · 2026-01-28
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$46.90M
@ $67.19 · 2026-01-23
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$42.61M
@ $67.64 · 2026-01-21
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$36.64M
@ $68.49 · 2026-01-16
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$55.62M
@ $68.58 · 2026-01-14
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$32.64M
@ $69.45 · 2026-01-09
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$47.42M
@ $69.61 · 2026-01-07
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$47.17M
@ $70.11 · 2026-01-02
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$62.04M
@ $70.53 · 2025-12-29
MITSUI SUMITOMO INSURANCE CO., LTD.
Beneficial Owner of more than 10% of a Class of Security
$42.55M
@ $69.71 · 2025-12-22
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)
2
Sells (12M)
Total value (12M): $134,661
DAMICO JENNIFER B.
Officer
$83,261
@ $25.40 · 2026-08-05
DAMICO JENNIFER B.
Officer
$51,400
@ $25.70 · 2026-06-09
DAMICO JENNIFER B.
Officer
$64,825
@ $25.93 · 2025-03-04
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
WRB
0
Sells (3M)
0
Sells (12M)
No open market insider sales found.
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
😏Greed(73/100)

"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.
WRB
FearGreed
😏Greed(62/100)

"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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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: Greed (73)
WRB
⚪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 (62)
View PFE Full AnalysisView WRB Full Analysis

Frequently Asked Questions: PFE vs WRB

Is Pfizer Inc. or W. R. Berkley Corporation more undervalued in 2026?▼

Based on our discounted cash flow model, WRB trades at a 2.2% margin of safety (intrinsic value $76 vs. price $74), compared to PFE's -36.1% margin of safety (intrinsic $22 vs. $31).

Which stock has a wider economic moat, Pfizer Inc. or W. R. Berkley Corporation?▼

WRB scores 99/100 (Wide 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 W. R. Berkley Corporation in financial distress?▼

WRB's Altman Z-Score of 1.2 places it in the Distress zone, signaling elevated bankruptcy risk. PFE scores 2.1 (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, Pfizer Inc. or W. R. Berkley Corporation?▼

WRB earns 14.6% ROIC versus PFE's 9.4%. 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, Pfizer Inc.'s or W. R. Berkley Corporation's?▼

WRB's dividend earns a safety score of 94/100 (Very Safe), compared to PFE's 24/100 (Unsafe). WRB has raised its dividend for 3 consecutive years.

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