BA vs MRK Comparison

Boeing is a major aerospace and defense firm operating in three segments: commercial airplanes; defense, space, and security; and global services. Boeing's commercial airplanes segment competes with Airbus in the production of aircraft that can carry more than 130 passengers. Boeing's defense, space, and security segment competes with defense contractors such as Lockheed Martin and Northrop Grumman to create military aircraft, satellites, and weaponry. Global services provides aftermarket support to airlines.

Merck makes pharmaceutical products to treat several conditions in a number of therapeutic areas, including cardiometabolic disease, cancer, and infections. Within cancer, the firm's immuno-oncology platform, led by Keytruda, is a major contributor to overall sales. The company also has a substantial vaccine business aimed at preventing pediatric diseases, as well as Gardasil for human papillomavirus. Additionally, Merck sells animal health-related drugs. From a geographical perspective, 47% of the company's sales are generated from US human health (pharmaceuticals and vaccines).