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Compare Merck & Co., Inc. (MRK) vs Sanofi SA (SNY) Price & Performance

Merck & Co., Inc.Trade

Price performance (Past 24H)

Key statistics

Merck & Co., Inc. vs Sanofi SA — how do they compare? Merck & Co., Inc. trades at $133.7 (market cap $321.77B), while Sanofi SA trades at $43.61 (market cap $104.30B). The key difference: Merck & Co., Inc. is far larger — about 3.1× Sanofi SA's market cap, and Sanofi SA pays the higher dividend (5.55%). Which is the better fit depends on your goals.

MRKSNY
Market Cap
$321.77B$104.30B
Sector
HealthHealth
52-Week High
$131.84$52.34
52-Week Low
$77.60$41.33
Enterprise Value
$368.53B$124.19B
Dividend Yield
2.61%5.55%

Aura AI Summary

Signals from Pluang's Aura AI — not financial advice

Merck & Co., Inc.

Merck & Co. (MRK) trades at $133.64, up 2.09% today, with a bullish technical signal from moving averages and strong institutional buying interest. The company reported solid earnings beats in recent quarters, with Q3 2026 EPS expected at $2.27. Revenue for 2025 reached $65.01B, and net income was $18.25B, though the P/E ratio of 104.34 suggests high valuation expectations. Recent news highlights Merck's acquisition of Terns Pharmaceuticals to bolster its oncology pipeline.

Outlook: MRK's growth is supported by strategic acquisitions and a dominant oncology franchise, but risks include high valuation multiples and competitive pressures. The consensus price target of $140.36 implies modest upside, with 68% of analysts rating it a Buy. Investors should monitor execution on the Terns integration and Q3 earnings results for catalysts.

Sanofi SA

SNY trades at $43.54, up 0.14% today, with a neutral technical signal and bullish moving averages. Recent Q2 2026 earnings beat expectations, with EPS of $1.21 versus $1.10 expected, driven by strong Dupixent sales. The company raised its 2026 outlook, projecting ~10% sales growth. Financial health is solid with a P/E of 23.27 and robust operating cash flow of $10.75B in 2025, though net cash flow was minimal at $49M.

Outlook is cautiously optimistic with growth catalysts from Dupixent and new drug approvals, but risks include pipeline setbacks and competitive pressures. Analysts are mixed, with 44% buy ratings, highlighting potential upside to fair value estimates around $57, while debt levels and regulatory scrutiny pose challenges for sustained shareholder value.

Returns comparison

Trailing returns across standard periods

Top news

Latest headlines on both assets

About Merck & Co., Inc.

Merck makes pharmaceutical products to treat several conditions in a number of therapeutic areas, including cardiometabolic disease, cancer, and infections. Within cancer, the firm's immuno-oncology platform is growing as a major contributor to overall sales. The company also has a substantial vaccine business, with treatments to prevent hepatitis B and pediatric diseases as well as HPV and shingles. Additionally, Merck sells animal health-related drugs. From a geographical perspective, just under half of the firm's sales are generated in the United States.

Read more on MRK

About Sanofi SA

Sanofi develops and markets drugs with a concentration in oncology, immunology, cardiovascular disease, diabetes, and vaccines. However, the company's decision in late 2019 to pull back from the cardio-metabolic area will likely reduce the firm's footprint in this large therapeutic area. The company offers a diverse array of drugs with its highest revenue generator, Dupixent, representing just over 10% of total sales, but profits are shared with Regeneron. About 30% of total revenue comes from the United States and 25% from Europe. Emerging markets represent the majority of the remainder of revenue.

Read more on SNY