WallStSmart

Pfizer Inc (PFE)vsVistra Energy Corp (VST)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Pfizer Inc generates 253% more annual revenue ($62.58B vs $17.74B). PFE leads profitability with a 12.4% profit margin vs 5.3%. VST appears more attractively valued with a PEG of 1.27. VST earns a higher WallStSmart Score of 53/100 (C-).

PFE

Hold

49

out of 100

Grade: D+

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

VST

Buy

53

out of 100

Grade: C-

Growth: 3.3Profit: 6.0Value: 4.7Quality: 2.5
Piotroski: 2/9Altman Z: 0.73
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

PFESignificantly Overvalued (-194.9%)

Margin of Safety

-194.9%

Fair Value

$9.25

Current Price

$27.28

$18.03 premium

UndervaluedFair: $9.25Overvalued
VSTSignificantly Overvalued (-980.6%)

Margin of Safety

-980.6%

Fair Value

$14.82

Current Price

$151.51

$136.69 premium

UndervaluedFair: $14.82Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

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

VST1 strengths · Avg: 9.0/10
Market CapQuality
$51.70B9/10

Large-cap with strong market position

Areas to Watch

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%

VST4 concerns · Avg: 3.0/10
Price/BookValuation
19.5x4/10

Trading at 19.5x book value

Profit MarginProfitability
5.3%3/10

5.3% margin — thin

Piotroski F-ScoreQuality
2/93/10

Weak financial health signals

P/E RatioValuation
70.1x2/10

Premium valuation, high expectations priced in

Comparative Analysis Report

WallStSmart Research

Bull Case : PFE

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

Bull Case : VST

The strongest argument for VST centers on Market Cap. Revenue growth of 13.6% demonstrates continued momentum. PEG of 1.27 suggests the stock is reasonably priced for its growth.

Bear Case : PFE

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

Bear Case : VST

The primary concerns for VST are Price/Book, Profit Margin, Piotroski F-Score. A P/E of 70.1x leaves little room for execution misses. Debt-to-equity of 3.36 is elevated, increasing financial risk.

Key Dynamics to Monitor

PFE profiles as a declining stock while VST is a value play — different risk/reward profiles.

VST carries more volatility with a beta of 1.45 — expect wider price swings.

VST is growing revenue faster at 13.6% — sustainability is the question.

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

Bottom Line

VST scores higher overall (53/100 vs 49/100) and 13.6% revenue growth. Both earn "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.

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.

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Vistra Energy Corp

UTILITIES · UTILITIES - INDEPENDENT POWER PRODUCERS · USA

Vistra Corp. The company is headquartered in Irving, Texas.

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