Compare · MRK vs PFE
MRK vs PFE
Side-by-side comparison of Merck & Company Inc. (MRK) and Pfizer Inc. (PFE): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both MRK and PFE operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
- PFE is the larger of the two at $304.95B, about 1.5x MRK ($204.35B).
- Over the past year, MRK is up 34.4% and PFE is up 17.1% - MRK leads by 17.3 points.
- PFE has been more active in the news (10 items in the past 4 weeks vs 9 for MRK).
- Both have 25 recent analyst ratings on file.
- Company
- Merck & Company Inc.
- Pfizer Inc.
- Price
- $111.84-2.43%
- $26.98+1.20%
- Market cap
- $204.35B
- $304.95B
- 1M return
- -6.32%
- -1.21%
- 1Y return
- +34.42%
- +17.13%
- Industry
- Biotechnology: Pharmaceutical Preparations
- Biotechnology: Pharmaceutical Preparations
- Exchange
- NYSE
- NYSE
- IPO
- News (4w)
- 9
- 10
- Recent ratings
- 25
- 25
Merck & Company Inc.
Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health segments. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, diabetes, and women's health, as well as vaccine products. The Animal Health segment provides discovers, develops, manufactures, and markets a range of veterinary pharmaceuticals, vaccines, and health management solutions and services, as well as a suite of digitally connected identification, traceability, and monitoring products. The company has collaborations with AstraZeneca PLC; Bayer AG; Eisai Co., Ltd.; and Ridgeback Biotherapeutics. It serves drug wholesalers and retailers, hospitals, and government agencies; managed health care providers, such as health maintenance organizations, pharmacy benefit managers, and other institutions; and physicians and physician distributors, veterinarians, and animal producers. The company has collaboration agreement with Gilead Sciences, Inc. to co-develop and co-commercialize long-acting investigational treatment combinations of Lenacapavir and Islatravir in HIV; Amathus Therapeutics to develop treatments for neurodegenerative diseases; and Linnaeus Therapeutics, Inc. to evaluate LNS8801 in combination with KEYTRUDA for patients with advanced cancer. It also has a collaboration with Biomed X Gmbh for building on ongoing research projects in the fields of oncology (DNA damage response and RNA splicing) and autoimmunity (intestinal epithelial barrier in autoimmune diseases); and a collaboration agreement with NGM Biopharmaceuticals, Inc. to focus primarily on the development of novel medicines for unmet patient needs in retinal and CVM diseases, including heart failure. Merck & Co., Inc. was founded in 1891 and is headquartered in Kenilworth, New Jersey.
Pfizer Inc.
Pfizer Inc. discovers, develops, manufactures, markets, distributes, and sells biopharmaceutical products worldwide. It offers medicines and vaccines in various therapeutic areas, including cardiovascular metabolic and pain under the Eliquis, Chantix/Champix, and Premarin family brands; biologics, small molecules, immunotherapies, and biosimilars under the Ibrance, Xtandi, Sutent, Inlyta, Retacrit, Lorbrena, and Braftovi brands; and sterile injectable and anti-infective medicines under the Sulperazon, Medrol, Zithromax, Vfend, and Panzyga brands. The company also provides medicines and vaccines in various therapeutic areas, such as pneumococcal disease, meningococcal disease, tick-borne encephalitis, and COVID-19 under the Prevnar 13/Prevenar 13 (pediatric/adult), Nimenrix, FSME/IMMUN-TicoVac, Trumenba, and the Pfizer-BioNTech COVID-19 vaccine brands; biosimilars for chronic immune and inflammatory diseases under the Xeljanz, Enbrel, Inflectra, and Eucrisa/Staquis brands; and amyloidosis, hemophilia, and endocrine diseases under the Vyndaqel/Vyndamax, BeneFIX, and Genotropin brands. In addition, the company is involved in the contract manufacturing business. It serves wholesalers, retailers, hospitals, clinics, government agencies, pharmacies, and individual provider offices, as well as disease control and prevention centers. The company has collaboration agreements with Bristol-Myers Squibb Company; Astellas Pharma US, Inc.; Myovant Sciences Ltd.; Akcea Therapeutics, Inc; Merck KGaA; Valneva SE; BioNTech SE; and Syapse, Inc. Pfizer Inc. was founded in 1849 and is headquartered in New York, New York.
Latest MRK
- Merck Announces Expiration of Hart-Scott-Rodino Act Waiting Period to Acquire Terns Pharmaceuticals, Inc.
- Merck and Google Cloud Partner to Accelerate Agentic AI Enterprise Transformation
- FDA Approves Merck's Once-Daily IDVYNSO™ (doravirine/islatravir)
- European Commission Approves Merck's ENFLONSIA™ (clesrovimab) for the Prevention of Respiratory Syncytial Virus (RSV) Lower Respiratory Tract Disease in Infants During Their First RSV Season
- New Survey Shows HPV Awareness Isn't Keeping Pace with Certain HPV-Related Cancer Trends in Canada
- Ifinatamab Deruxtecan Granted Priority Review in the U.S. for Adult Patients with Previously Treated Extensive-Stage Small Cell Lung Cancer who Experienced Disease Progression on or After Platinum-Based Chemotherapy
- SEC Form DEFA14A filed by Merck & Company Inc.
- SEC Form DEF 14A filed by Merck & Company Inc.
- Merck Begins Tender Offer to Acquire Terns Pharmaceuticals, Inc.
- Merck Announces Initiation of Pivotal Phase 2b/3 Trial Evaluating MK-8748 (Tiespectus), an Investigational Bispecific Tie2 Agonist/VEGF Inhibitor, for the Treatment of Neovascular Age-Related Macular Degeneration
Latest PFE
- Bristol Myers Squibb and Pfizer to Make Eliquis® (apixaban) Available via Mark Cuban Cost Plus Drug Company
- Pfizer Declares Second-Quarter 2026 Dividend
- Pfizer Showcases Oncology Innovation and Next-Generation Pipeline at ASCO 2026
- U.S. FDA Grants Priority Review to sBLA for PADCEV™ + Keytruda® as Perioperative Treatment for Muscle-Invasive Bladder Cancer Regardless of Cisplatin Eligibility
- SEC Form 4 filed by Bourla Albert
- SEC Form 4 filed by Bourla Albert
- SEC Form 3 filed by new insider Hancock Dennis P
- Pfizer Invites Shareholders to View and Listen to Webcast of April 23 Virtual 2026 Annual Meeting of Shareholders
- Telix Strengthens Board with Additional Director Appointments
- AI-Enhanced Robotics in Pharma Manufacturing Signals Major Efficiency, Margin Expansion Opportunities