DGX vs DLTR 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.

Founded in 1986, Dollar Tree operates almost 9,000 small-box discount stores across the United States and Canada, offering roughly 85% of its merchandise under $2. The chain targets value-conscious suburban and urban shoppers with a mix of consumables (49% of sales), variety (45%), and seasonal goods (6%). In fiscal 2024, Dollar Tree generated over $17 billion in sales, through its multi-price strategy, higher-margin discretionary assortments, and private-label products that account for nearly one-third of sales.