COST vs TMO: Which Is the Better Buy?

Side-by-side comparison of Costco Wholesale Corporation and Thermo Fisher Scientific Inc. โ€” fair value, conviction, valuation metrics, and QuantHub research signals. Updated 2026-07-08.
Costco Wholesale Corporation ยท Consumer Defensive
$947.50
-1.4% upside to fair value
Grade C High Quality
VS
Thermo Fisher Scientific Inc. ยท Healthcare
$464.61
+7.2% upside to fair value
Grade A High Quality
QuantHub Verdict
TMO has more upside to fair value (+7.2%). TMO trades at a lower forward P/E (25.2x). These are model outputs โ€” not personalized investment advice. See all research โ†’
Valuation & Fundamentals
Metric COST TMO
Current Price $947.50 $464.61
Fair Value Estimate $933.84 $498.27
Upside to Fair Value -1.4% +7.2%
Market Cap $420.2B $172.7B
Forward P/E 47.6x 25.2x
EV / EBITDA 28.3x 19.1x
Price / Sales 1.4x 3.8x
Price / FCF 47.7x 25.6x
Revenue Growth YoY +11.6% +6.2%
Gross Margin 12.9% 39.4%
Operating Margin 3.8% 17.8%
Return on Equity 28.3% 13.3%
Dividend Yield 0% 0%
FCF Yield 2.1% 3.91%
Analyst Consensus Buy Strong Buy
Investment Thesis
COST โ€” Costco Wholesale Corporation
Costco Wholesale Corporation operates as a membership-only warehouse club offering a wide range of merchandise at low prices. The company exhibits high business quality with a durable competitive moat driven by cost advantages, strong brand loyalty, and efficient operations, reflected in a robust ROE of 28.3% and solid revenue growth of 11.6% in the most recent quarter. Despite these strengths, tโ€ฆ
TMO โ€” Thermo Fisher Scientific Inc.
Thermo Fisher Scientific is a leading healthcare company specializing in life science tools, diagnostics, and contract research and manufacturing services. It operates with a broad, multi-layered moat driven by scale, integration, and a long-tenured management team. The company exhibits solid fundamentals with a 13.3% ROE, 6.2% revenue growth, and 9.6% earnings growth in the most recent quarter. โ€ฆ
Accumulation Zones
Metric COST TMO
Zone Low $700.38 $373.70
Zone High $793.76 $423.53
In Buy Zone? No No
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