WallStSmart

Merck & Company Inc (MRK)vsProtagonist Therapeutics Inc (PTGX)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Merck & Company Inc generates 23507% more annual revenue ($66.57B vs $281.99M). PTGX leads profitability with a 29.4% profit margin vs 4.8%. MRK trades at a lower P/E of 116.1x. PTGX earns a higher WallStSmart Score of 63/100 (C+).

MRK

Hold

36

out of 100

Grade: F

Growth: 4.0Profit: 4.5Value: 2.0Quality: 5.0
Piotroski: 3/9Altman Z: 2.27

PTGX

Buy

63

out of 100

Grade: C+

Growth: 10.0Profit: 7.0Value: 4.0Quality: 8.5
Piotroski: 3/9Altman Z: 6.08
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

MRKSignificantly Overvalued (-73.7%)

Margin of Safety

-73.7%

Fair Value

$82.84

Current Price

$144.85

$62.01 premium

UndervaluedFair: $82.84Overvalued

Intrinsic value data unavailable for PTGX.

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

MRK2 strengths · Avg: 9.0/10
Market CapQuality
$355.10B10/10

Mega-cap, among the largest globally

Free Cash FlowQuality
$4.48B8/10

Generating 4.5B in free cash flow

PTGX6 strengths · Avg: 9.8/10
Operating MarginProfitability
74.4%10/10

Strong operational efficiency at 74.4%

Revenue GrowthGrowth
3749.0%10/10

Revenue surging 3749.0% year-over-year

EPS GrowthGrowth
351.3%10/10

Earnings expanding 351.3% YoY

Debt/EquityHealth
0.0110/10

Conservative balance sheet, low leverage

Altman Z-ScoreHealth
6.0810/10

Safe zone — low bankruptcy risk

Profit MarginProfitability
29.4%9/10

Keeps 29 of every $100 in revenue as profit

Areas to Watch

MRK4 concerns · Avg: 3.3/10
Price/BookValuation
8.5x4/10

Trading at 8.5x book value

Return on EquityProfitability
7.6%3/10

ROE of 7.6% — below average capital efficiency

Profit MarginProfitability
4.8%3/10

4.8% margin — thin

Debt/EquityHealth
1.293/10

Elevated debt levels

PTGX4 concerns · Avg: 2.8/10
Price/BookValuation
11.4x4/10

Trading at 11.4x book value

Piotroski F-ScoreQuality
3/93/10

Weak financial health signals

P/E RatioValuation
140.9x2/10

Premium valuation, high expectations priced in

Return on EquityProfitability
-17.5%2/10

ROE of -17.5% — below average capital efficiency

Comparative Analysis Report

WallStSmart Research

Bull Case : MRK

The strongest argument for MRK centers on Market Cap, Free Cash Flow.

Bull Case : PTGX

The strongest argument for PTGX centers on Operating Margin, Revenue Growth, EPS Growth. Profitability is solid with margins at 29.4% and operating margin at 74.4%. Revenue growth of 3749.0% demonstrates continued momentum.

Bear Case : MRK

The primary concerns for MRK are Price/Book, Return on Equity, Profit Margin. A P/E of 116.1x leaves little room for execution misses. Thin 4.8% margins leave little buffer for downturns.

Bear Case : PTGX

The primary concerns for PTGX are Price/Book, Piotroski F-Score, P/E Ratio. A P/E of 140.9x leaves little room for execution misses.

Key Dynamics to Monitor

MRK profiles as a value stock while PTGX is a growth play — different risk/reward profiles.

PTGX carries more volatility with a beta of 1.79 — expect wider price swings.

PTGX is growing revenue faster at 3749.0% — sustainability is the question.

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

Bottom Line

PTGX scores higher overall (63/100 vs 36/100), backed by strong 29.4% margins and 3749.0% 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.

Merck & Company Inc

HEALTHCARE · DRUG MANUFACTURERS - GENERAL · USA

Merck & Co. is an American multinational pharmaceutical company headquartered in Kenilworth, New Jersey. It is named after the Merck family, which set up Merck Group in Germany in 1668.

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Protagonist Therapeutics Inc

HEALTHCARE · BIOTECHNOLOGY · USA

Protagonist Therapeutics, Inc., a clinical-stage biopharmaceutical company, discovers and develops peptide-based therapeutic drugs to address unmet medical needs. The company is headquartered in Newark, California.

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