DGX vs LUV Comparison

Quest Diagnostics Inc is a leading independent provider of diagnostic testing, information, and services in the us. The company generates over 95% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,300 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk-assessment services, and information technology solutions.

Southwest Airlines is the largest domestic air carrier in the United States by passengers boarded. Southwest operates nearly 800 aircraft in an all-Boeing 737 fleet. Despite offering some longer routes and a few perks for business travelers, the airline predominantly specializes in short-haul, leisure flights operated in a single, open-seating cabin configuration in a point-to-point network. In late 2025, Southwest will modify its cabins to offer some seats with extra legroom and will update its ticketing process and merchandising to offer assigned seats and more fare categories including a basic economy class that will more directly compete with other airlines' offerings.