MRK vs TMO: Which is Better to Buy in 2026?

Side-by-side fundamental comparison based on AI analysis of SEC filings

AI Verdict

MRK has stronger fundamentals based on our AI analysis.

MRK
Merck & Co., Inc.
BUY
80%
Confidence
VS
TMO
THERMO FISHER SCIENTIFIC INC.
BUY
73%
Confidence

MRK vs TMO Fundamental Comparison

Metric MRK TMO
Revenue $65.0B $44.6B
Net Income $18.3B $6.7B
Net Margin 28.1% 15.0%
ROE 34.7% 12.6%
ROA 13.3% 6.1%
Current Ratio 1.54x 1.89x
Debt/Equity 0.89x 0.73x
EPS $7.28 $17.74

Green = Better metric | Red = Weaker metric

View Full MRK Analysis →
View Full TMO Analysis →
Browse Sectors: Technology Healthcare Finance Energy Consumer Industrial
Stock Lists: Strong Buy Undervalued Growth Dividend

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MRK vs TMO: Frequently Asked Questions

Is MRK or TMO a better buy in 2026?

Based on dual AI fundamental analysis (Claude and ChatGPT), MRK has stronger fundamentals. MRK is rated BUY (80% confidence) while TMO is rated BUY (73% confidence). This is not investment advice.

How does MRK compare to TMO fundamentally?

Merck & Co., Inc. has ROE of 34.7% vs THERMO FISHER SCIENTIFIC INC.'s 12.6%. Net margins are 28.1% vs 15.0% respectively.

Which stock pays higher dividends, MRK or TMO?

MRK has a dividend yield of N/A or no dividend while TMO has N/A or no dividend. Check individual stock pages for detailed dividend history and payout ratios.

Should I invest in MRK or TMO for long term?

For long-term investing, consider that MRK has BUY rating with 80% confidence, while TMO has BUY rating with 73% confidence. Higher confidence indicates more consistent fundamentals from SEC filings. This is not investment advice - always do your own research.

What do the AI models say about MRK vs TMO?

Our dual AI system (Claude by Anthropic and ChatGPT by OpenAI) analyzes SEC 10-K and 10-Q filings independently. For MRK vs TMO, the AI consensus favors MRK based on fundamental metrics including revenue growth, profitability, ROE, and balance sheet strength.