MCK vs BK Comparison

McKesson is one of three leading pharmaceutical wholesalers in the US engaged in sourcing and distributing branded, generic, and specialty pharmaceutical products to pharmacies (retail chains, independent, and mail order), hospitals networks, and healthcare providers. Along with Cencora and Cardinal Health, the three account for over 90% of the US pharmaceutical wholesale industry. Outside the US market, McKesson engages in pharmaceutical wholesale and distribution in Canada. Additionally, the company supplies medical-surgical products and equipment to healthcare facilities and provides a variety of technology solutions for pharmacies.

Bank of New York Mellon is a global investment company involved in managing and servicing financial assets throughout the investment lifecycle. The bank provides financial services for institutions, corporations, and individual investors, delivering investment management and services in 35 countries and more than 100 markets. BNY is the largest global custody bank in the world, with $59.3 trillion in under custody or administration (as of December 2025), and can act as a single point of contact for clients looking to create, trade, hold, manage, service, distribute, or restructure investments. BNY's asset-management division manages about $2.2 trillion in assets.