Is MRK or PFE more undervalued in 2026?

CirclFi compares Merck & Company, Inc. (MRK) and Pfizer, Inc. (PFE) using 13 institutional-grade valuation models. MRK has a Quality of Company score of 9.8/10 while PFE scores 6.7/10.

Which is a better buy — MRK or PFE?

Compare intrinsic values from 13 independent models against current market prices. CirclFi also calculates Value Trap scores. This is not financial advice — conduct your own analysis.

How do MRK and PFE valuations compare?

MRK at $119.89 and PFE at $26.14 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

MRK vs PFE Valuation Comparison 2026 — Intrinsic Value Analysis

MRK

Drug Manufacturers - General

Merck & Company, Inc.

Quality

9.8

out of 10

Value Trap

—

Price

$119.89

Last close

Models

13/13

Active

PFE

Drug Manufacturers - General

Pfizer, Inc.

Quality

6.7

out of 10

Value Trap

SAFE

Price

$26.14

Last close

Models

12/13

Active

Model-by-Model Comparison

Model	Type	MRK Fair Value	MRK Upside	PFE Fair Value	PFE Upside
Bayesian DCF	Intrinsic	$45.62	-61.9%	$29.31	+12.1%
Earnings Power Value	Intrinsic	$17.85	-85.1%	$32.38	+23.9%
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
Markov DDM	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$•••.••	••.•%	$•••.••	••.•%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%
RCMH-DCF	Intrinsic	$•••.••	••.•%	$•••.••	••.•%

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MRK vs PFE — Which Stock Is More Undervalued?

MRK scores higher with a 9.8/10 quality rating vs PFE's 6.7/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Merck & Company, Inc. (MRK) and Pfizer, Inc. (PFE) across 13 institutional-grade valuation models reveals how each company's intrinsic value stacks up against its market price. CirclFi's engine processes SEC EDGAR 10-K and 10-Q filings, FRED macroeconomic data, and GDELT news sentiment to generate independent fair value estimates daily.

MRK currently trades at $119.89 with a QOC of 9.8/10, while PFE trades at $26.14 with a QOC of 6.7/10.

Both companies are analyzed with models spanning intrinsic (Bayesian DCF, EPV), scenario-based (First Chicago), regime-switching (Markov DDM, RCMH-DCF), machine learning (ML-RIV, FTNN Topology), and ensemble methods (CUCE).