DGX vs PKG Comparison

Quest Diagnostics 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.

Packaging Corp. of America is the third-largest containerboard and corrugated packaging manufacturer in the United States. It produces over 5 million tons of containerboard annually. The company's share of the domestic containerboard market is roughly 10%. PCA differentiates itself from larger competitors by focusing on smaller customers and operating with a high degree of flexibility.