With a market cap of $8.6 billion, DaVita Inc. (DVA) is a leading provider of kidney dialysis services for patients with chronic kidney failure in the United States. The company operates a nationwide network of outpatient dialysis centers, offering outpatient, inpatient, and home-based hemodialysis services along with related laboratory testing for ESRD patients. Companies valued less than$10 billion are generally considered "mid-cap" stocks, and DaVita fits this criterion perfectly. In addition to dial ...