COST vs PFE: Which Is the Better Buy?

Side-by-side comparison of Costco Wholesale Corporation and Pfizer Inc. โ€” fair value, conviction, valuation metrics, and QuantHub research signals. Updated 2026-04-11.
Costco Wholesale Corporation ยท Consumer Defensive
$1,002.88
-35.4% upside to fair value
Grade C High Quality
VS
Pfizer Inc. ยท Healthcare
$26.91
+30.1% upside to fair value
Med Conviction Grade B+
QuantHub Verdict
PFE has more upside to fair value (+30.1%). PFE trades at a lower forward P/E (9.5x). These are model outputs โ€” not personalized investment advice. See all research โ†’
Valuation & Fundamentals
Metric COST PFE
Current Price $1,002.88 $26.91
Fair Value Estimate $648.03 $35.00
Upside to Fair Value -35.4% +30.1%
Market Cap $444.9B $153.0B
Forward P/E 52.1x 9.5x
EV / EBITDA 31.0x 13.8x
Price / Sales 1.6x 2.4x
Price / FCF 49.0x 16.8x
Revenue Growth YoY +3.4% -1.6%
Gross Margin 12.9% 70.3%
Operating Margin 3.8% 24.7%
Return on Equity 28.8% 9.0%
Dividend Yield 0% 6.4%
FCF Yield 2.04% 5.9%
Analyst Consensus Strong Buy Hold
Investment Thesis
COST โ€” Costco Wholesale Corporation
Costco Wholesale Corporation operates a global membership-based warehouse club model with over 900 warehouses across 14 countries, generating $254 billion in fiscal 2024 revenue. The company benefits from a durable competitive moat driven by scale advantages, a loyal membership base with high renewal rates, and superior employee retention through better wages and benefits. Despite steady revenue โ€ฆ
PFE โ€” Pfizer Inc.
Pfizer remains the world's largest traditional pharmaceutical company by non-COVID revenue, generating $62.6B in 2025 sales across oncology, cardiovascular, immunology, and vaccines. The stock trades at a P/S of 2.44x, still well below the 5-year median of 3.10x, driven by post-COVID revenue normalization, a $17-18B patent cliff spanning 2026-2028, and $61.6B in acquisition-related debt from Seagโ€ฆ
Accumulation Zones
Metric COST PFE
Zone Low $486.02 $25.00
Zone High $550.83 $29.00
In Buy Zone? No Yes
โ† COST Research    PFE Research โ†’    All Research