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.
- MRK is the larger of the two at $314.90B, about 2.2x PFE ($142.77B).
- Over the past year, MRK is up 59.4% and PFE is up 2.4% - MRK leads by 57.1 points.
- PFE has been more active in the news (17 items in the past 4 weeks vs 14 for MRK).
- Both have 25 recent analyst ratings on file.
- Company
- Merck & Company Inc.
- Pfizer Inc.
- Price
- $127.48-0.14%
- $25.05-0.36%
- Market cap
- $314.90B
- $142.77B
- 1M return
- +10.60%
- -3.84%
- 1Y return
- +59.45%
- +2.37%
- Industry
- Biotechnology: Pharmaceutical Preparations
- Biotechnology: Pharmaceutical Preparations
- Exchange
- NYSE
- NYSE
- IPO
- News (4w)
- 14
- 17
- 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’s LIPFENDRA® (enlicitide) is the First and Only Once-Daily Oral PCSK9 Inhibitor Approved by the U.S. FDA to Reduce LDL-C in Adults with Hypercholesterolemia
- Merck to Present New Data on Daily, Weekly, and Monthly Options Across its HIV Treatment and Prevention Pipeline at AIDS 2026
- KEYTRUDA® (pembrolizumab) as Monotherapy Significantly Improved Progression-Free Survival (PFS) in Certain Patients With Advanced or Recurrent Endometrial Cancer With Mismatch Repair Deficient (dMMR) Tumors Compared to Chemotherapy
- SEC Form 4 filed by Director Seidman Christine E
- SEC Form 4 filed by Director Karsanbhai Surendralal Lanca
- SEC Form 4 filed by Director Coe Mary Ellen
- Merck to Hold Second-Quarter 2026 Sales and Earnings Conference Call Aug. 4
- Merck Announces New Agreement with ADAP Crisis Task Force to Improve Access and Care for People Living with HIV
- FDA Approves KEYTRUDA® (pembrolizumab) and KEYTRUDA QLEX™ (pembrolizumab and berahyaluronidase alfa-pmph), each with Trodelvy® (sacituzumab govitecan-hziy) as First-Line Treatment of PD-L1+ (CPS ≥10) Advanced Triple-Negative Breast Cancer (TNBC)
- SEC Form 11-K filed by Merck & Company Inc.
Latest PFE
- SEC Form 4 filed by Chairman & CEO Bourla Albert
- AM Best Affirms Credit Ratings of Blue Whale Re Ltd.
- SEC Form 4 filed by Chairman & CEO Bourla Albert
- U.S. FDA Approves PADCEV® plus Keytruda® as Neoadjuvant and Adjuvant Treatment for Muscle-Invasive Bladder Cancer Regardless of Cisplatin Eligibility
- Pfizer downgraded by HSBC Securities with a new price target
- SEC Form 4 filed by Chairman & CEO Bourla Albert
- SEC Form 4 filed by Director Buckley Mortimer J
- SEC Form 4 filed by Director Echevarria Joseph
- SEC Form 4 filed by Director Narayen Shantanu
- SEC Form 4 filed by Director Smith James C