SK hynix Inc. (000660.KS) vs Merck & Co., Inc. (MRK)

SK hynix Inc. is a South Korean semiconductor company and one of the world’s largest producers of memory chips. Its core products include DRAM and NAND flash memory used in data centers, personal computers, smartphones, servers, and artificial intelligence infrastructure. The company plays an important role in the global supply chain for advanced computing, with demand tied closely to cloud services, enterprise hardware, mobile devices, and high-performance AI systems.

Merck & Co., Inc. develops pharmaceutical products across multiple therapeutic areas, including cardiometabolic disorders, oncology, and infectious diseases. In cancer treatment, its immuno-oncology portfolio, led by Keytruda, represents a significant driver of total revenue. The company also maintains a strong vaccines business focused on preventing pediatric illnesses, alongside Gardasil for human papillomavirus. In addition, Merck markets animal health products. Geographically, 47% of the company’s sales come from its U.S. human health segment, which includes pharmaceuticals and vaccines.