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Pfizer, Inc. (PFE) vs Republic Services, Inc. (RSG): 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%. RSG is undervalued at $211, with an intrinsic value of $41744650332 and a margin of safety of 100%. Of the two, PFE has the wider margin of safety.

PFE
Pfizer, Inc.
$25.01
VS
RSG
Republic Services, Inc.
$210.55

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.
RSG
  • ★Republic Services, Inc. scores 89/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
  • ★Free cash flow has grown at a 11.5% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • ★Each dollar of retained earnings has created $2.00 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.
  • ⚠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.
RSG
  • ⚠PEG ratio of 3.03 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 1.21 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.

Key Valuation Metrics

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PFE
RSG
Valuation
$12.38B
Free Cash Flow
$2.41B
N/A
FCF Yield
0.00%
19.09
Trailing P/E
30.21
8.85
Forward P/E
26.10
Quality & Moat
10.19%
ROIC
10.22%
8.31%
ROE
18.35%
74.80%
Gross Margin
43.05%
2.94
PEG Ratio
3.03
Balance Sheet Safety
0.57
Net Debt / Equity
1.17
N/A
Interest Coverage
N/A
2.03
Net Debt / EBITDA
2.69
6.88%
Dividend Yield
1.19%
PFE: 7Ties: 3RSG: 1
PFERSG

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.

RSG

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
$-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
RSG
$0.00
created per $1 retained over 3 years
Value Destroyer
Σ Retained
$3.85B
Δ Market Cap
+$82.94
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
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
RSG
100.0% Margin of Safety
Price is 100.0% below estimated fair value
Current Price: $210.55
Fair Value: $41744650331.79
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.

RSG

What growth rate is the market pricing in at $211?

-8.3%
Market-Implied Owner Earnings Growth
Standard FCF implies -9.8%

The market implies -8.3% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding -9.8%, reflecting heavy growth investment expected to generate future returns.

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.
RSG
89/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat with strength across all dimensions. Revenue Predictability is the standout factor.

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.

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.
RSG
-2.74
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 69.5%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.
RSG
Insiders 0.2%Institutions 96.8%Retail & Other 3.1%
No. of Institutional Holders1,820
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
RSG
2
Buys (3M)
4
Buys (12M)
Total value (12M): $203.47M
CASCADE INVESTMENT, L.L.C.
Beneficial Owner of more than 10% of a Class of Security
$101.84M
@ $208.69 · 2026-05-18
CASCADE INVESTMENT, L.L.C.
Beneficial Owner of more than 10% of a Class of Security
$100.53M
@ $201.40 · 2026-05-13
WEYMOUTH KATHARINE B
Director
$100,122
@ $209.46 · 2025-12-09
CASCADE INVESTMENT, L.L.C.
Beneficial Owner of more than 10% of a Class of Security
$1.00M
@ $234.91 · 2025-08-19
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
RSG
1
Sells (3M)
2
Sells (12M)
Total value (12M): $1.79M
CARLSEN ELYSE
Officer
$77,877
@ $216.32 · 2026-05-19
BRUMMER GREGG
Chief Operating Officer
$1.72M
@ $233.94 · 2025-08-22
CARLSEN ELYSE
Officer
$59,495
@ $253.17 · 2025-06-05
RICHARDSON LARSON
Officer
$525,954
@ $239.07 · 2025-03-03
BRUMMER GREGG
Chief Operating Officer
$1.44M
@ $228.20 · 2025-02-19
WEYMOUTH KATHARINE B
Director
$400,187
@ $215.27 · 2024-12-05
DELGHIACCIO BRIAN M
Chief Financial Officer
$1.07M
@ $210.02 · 2024-11-19
COLLINS TOMAGO
Director
$649,625
@ $203.01 · 2024-08-16
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.
RSG
FearGreed
😐Neutral(47/100)

"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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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)
RSG
⚪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 (47)
View PFE Full AnalysisView RSG Full Analysis

Frequently Asked Questions: PFE vs RSG

Is Pfizer, Inc. or Republic Services, Inc. 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 RSG's 100.0% margin of safety (intrinsic $41744650332 vs. $211).

Which stock has a wider economic moat, Pfizer, Inc. or Republic Services, Inc.?▼

RSG scores 89/100 (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 Republic Services, Inc. in financial distress?▼

RSG's Altman Z-Score of 1.2 places it in the Distress zone, signaling elevated bankruptcy risk. PFE scores 1.4 (Distress 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 Republic Services, Inc.?▼

RSG earns 10.2% 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.

Which dividend is safer, Pfizer, Inc.'s or Republic Services, Inc.'s?▼

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