WallStSmart

GlaxoSmithKline PLC ADR (GSK)vsPfizer Inc (PFE)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Pfizer Inc generates 92% more annual revenue ($62.58B vs $32.67B). GSK leads profitability with a 17.5% profit margin vs 12.4%. GSK appears more attractively valued with a PEG of 0.50. GSK earns a higher WallStSmart Score of 70/100 (B).

GSK

Strong Buy

70

out of 100

Grade: B

Growth: 6.7Profit: 8.5Value: 10.0Quality: 5.5
Piotroski: 5/9Altman Z: 1.24

PFE

Hold

49

out of 100

Grade: D+

Growth: 2.0Profit: 6.5Value: 4.7Quality: 4.8
Piotroski: 3/9
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

GSKUndervalued (+66.0%)

Margin of Safety

+66.0%

Fair Value

$172.22

Current Price

$54.71

$117.51 discount

UndervaluedFair: $172.22Overvalued
PFESignificantly Overvalued (-194.9%)

Margin of Safety

-194.9%

Fair Value

$9.25

Current Price

$27.28

$18.03 premium

UndervaluedFair: $9.25Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

GSK6 strengths · Avg: 9.2/10
PEG RatioValuation
0.5010/10

Growing faster than its price suggests

Return on EquityProfitability
43.3%10/10

Every $100 of equity generates 43 in profit

EPS GrowthGrowth
54.7%10/10

Earnings expanding 54.7% YoY

Market CapQuality
$104.12B9/10

Large-cap with strong market position

P/E RatioValuation
14.1x8/10

Attractively priced relative to earnings

Free Cash FlowQuality
$1.48B8/10

Generating 1.5B in free cash flow

PFE4 strengths · Avg: 8.3/10
Market CapQuality
$153.36B9/10

Large-cap with strong market position

Price/BookValuation
1.8x8/10

Reasonable price relative to book value

Operating MarginProfitability
23.9%8/10

Strong operational efficiency at 23.9%

Free Cash FlowQuality
$4.50B8/10

Generating 4.5B in free cash flow

Areas to Watch

GSK3 concerns · Avg: 3.0/10
Price/BookValuation
10.1x4/10

Trading at 10.1x book value

Debt/EquityHealth
1.103/10

Elevated debt levels

Altman Z-ScoreHealth
1.242/10

Distress zone — elevated risk

PFE4 concerns · Avg: 2.3/10
Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

PEG RatioValuation
13.772/10

Expensive relative to growth rate

Revenue GrowthGrowth
-1.2%2/10

Revenue declined 1.2%

EPS GrowthGrowth
-21.3%2/10

Earnings declined 21.3%

Comparative Analysis Report

WallStSmart Research

Bull Case : GSK

The strongest argument for GSK centers on PEG Ratio, Return on Equity, EPS Growth. Profitability is solid with margins at 17.5% and operating margin at 18.9%. PEG of 0.50 suggests the stock is reasonably priced for its growth.

Bull Case : PFE

The strongest argument for PFE centers on Market Cap, Price/Book, Operating Margin.

Bear Case : GSK

The primary concerns for GSK are Price/Book, Debt/Equity, Altman Z-Score.

Bear Case : PFE

The primary concerns for PFE are Piotroski F-Score, PEG Ratio, Revenue Growth.

Key Dynamics to Monitor

GSK profiles as a mature stock while PFE is a declining play — different risk/reward profiles.

PFE carries more volatility with a beta of 0.41 — expect wider price swings.

GSK is growing revenue faster at 6.2% — sustainability is the question.

PFE generates stronger free cash flow (4.5B), providing more financial flexibility.

Bottom Line

GSK scores higher overall (70/100 vs 49/100), backed by strong 17.5% margins. Both earn "Strong Buy" and "Hold" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

GlaxoSmithKline PLC ADR

HEALTHCARE · DRUG MANUFACTURERS - GENERAL · USA

GlaxoSmithKline plc is dedicated to the creation, discovery, development, manufacture and marketing of pharmaceuticals, vaccines, over-the-counter drugs and health-related consumer products in the UK, US and internationally. The company is headquartered in Brentford, the United Kingdom.

Pfizer Inc

HEALTHCARE · DRUG MANUFACTURERS - GENERAL · USA

Pfizer Inc. is an American multinational pharmaceutical and biotechnology corporation headquartered on 42nd Street in Manhattan, New York City. The name of the company commemorates its co-founder, Charles Pfizer (1824-1906). Pfizer develops and produces medicines and vaccines for immunology, oncology, cardiology, endocrinology, and neurology. The company has several blockbuster drugs or products that each generate more than 1 billion USD in annual revenues.

Visit Website →

Want to dig deeper into these stocks?