DGX vs DKS 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.

Dick's Sporting Goods is a retailer that offers sports and outdoor apparel, footwear, and equipment online and in physical stores. The company's legacy business includes more than 700 stores under its own name, more than 100 Golf Galaxy golf specialty stores, and about 50 outlet stores. In September 2025, Dick's acquired multinational retailer Foot Locker. With this move, Dick's added more than 2,300 stores under the Foot Locker, Kids Foot Locker, Champs Sports, atmos, and WSS nameplates in North America, the Asia-Pacific, and EMEA—Europe, the Middle East, and Africa. Based in the Pittsburgh area, Dick's was founded in 1948 by the father of current executive chair and controlling shareholder Edward Stack.