MRK vs PFE
As of Sep 20, 2026, Merck (MRK) scores 6.3/10 and Pfizer (PFE) 5.2/10 on AlphaStocks' five-model composite, so MRK scores higher. MRK trades 34% below its model fair value; PFE trades 17% below its model fair value.
MRK
Merck & Co., Inc.
6.3
Consider Buy
$146.75
PFE
PFIZER INC
5.2
Consider Buy
$27.60
MRK vs PFE: Which is the Better Investment?
Merck & Co., Inc. (MRK) scores 6.3/10 while PFIZER INC (PFE) scores 5.2/10 on AlphaStocks' composite model. Merck & Co., Inc. has the higher composite rating of Consider Buy. On a P/E basis, Merck & Co., Inc. trades at 20.1x, making it the more attractively priced of the two. Merck & Co., Inc. trades further below its estimated fair value.
This comparison is algorithmically generated and is not financial advice.
| Metric | MRK | PFE |
|---|---|---|
| Scores & Fundamentals | ||
| Composite Score | 6.3/10▲ | 5.2/10 |
| Rating | Consider Buy▲ | Consider Buy |
| Price | $146.75 | $27.60 |
| P/E Ratio | 20.1▲ | 20.3 |
| ROE | 35.0%▲ | 8.7% |
| Market Cap | $363B | $158B |
| Fair Value | $220.96 | $33.12 |
| Dividend Yield | 2.6% | 7.1%▲ |
| Sector Rank | #37 of 168▲ | #102 of 168 |
| Model Verdicts | ||
| Piotroski | Neutral | Attractive▲ |
| Buffett | Attractive | Attractive |
| Graham | Caution | Caution |
| Lynch | Neutral | Neutral |
| Greenblatt | Strong | Strong |
Related comparisons
MRK vs PFE: Which Stock Scores Higher?
Merck & Co., Inc. (MRK) and PFIZER INC (PFE) are both in the Health Care sector. MRK currently leads with a composite score of 6.3/10 (Consider Buy) compared to PFE's 5.2/10 (Consider Buy).
The AlphaStocks composite score evaluates each stock across four dimensions: Quality (business strength measured by Piotroski F-Score and Buffett quality criteria), Value (discount to intrinsic worth using Graham, Lynch, and Greenblatt models), Momentum (6-month price trend), and Timing (a confirmation signal that requires both value and momentum to align). A higher composite score indicates stronger overall fundamentals combined with favorable market conditions.
This comparison uses the same scoring framework for both companies, ensuring an apples-to-apples evaluation. Scores are recalculated daily after market close using data from SEC filings and market prices. Read the full methodology to understand how each model contributes to the composite score.
Scores are algorithm-generated research tools, not investment recommendations. Past performance does not guarantee future results. Always do your own due diligence. Full disclaimer