BIIB vs ZBH Comparison

Biogen is an established biopharmaceutical company focused on treatments for neurological diseases and rare diseases. Its declining multiple sclerosis franchise is its largest revenue generator and contributed 45% of total revenue in 2024. Biogen also generates significant revenue from its CD20 collaboration agreements with Roche (18% of total in 2024), which includes oncology drugs Rituxan and Gazyva and multiple sclerosis drug Ocrevus. Biogen's newer franchises include Spinraza (spinal muscular atrophy, with partner Ionis), Leqembi (Alzheimer's disease, collabroation revenue from its partner Eisai), Skyclarys (Friedreich's ataxia, Reata), Zurzuvae (postpartum depression, Sage), and Qalsody (amyotrophic lateral sclerosis, Ionis).

Zimmer Biomet designs, manufactures, and markets orthopedic reconstructive implants as well as supplies and surgical equipment for orthopedic surgery. With the acquisitions of Centerpulse in 2003 and Biomet in 2015, Zimmer holds the leading share of the reconstructive market in the United States, Europe, and Japan. Roughly two-thirds of total revenue is derived from sales of large joints; another fourth comes from extremities, trauma, sports medicine, and related surgical products. The firm spun out its dental and spine businesses in 2022.