Aetna Inc. operates in the Hospital and medical service plans sector. Aetna Inc. (Aetna) is a diversified health care benefits company, serving approximately 35.3 million people. Aetna offers a range of traditional and consumer-directed health insurance products and related services, including medical, pharmacy, dental, behavioral health, group life and disability plans, and medical management capabilities and Medicaid health care management services. The Company's customers include employer groups, individuals, college students, part-time and hourly workers, health plans, governmental units, government-sponsored plans, labor groups and expatriates. The Company operates in three business segments: Health Care, Group Insurance and Large Case Pensions. In January 2010, the Company acquired Medicity Inc. (Medicity), a health information exchange company. In June 2011, it acquired Prodigy Health Group. On October 1, 2011, Genworth Financial, Inc. sold its Medicare supplement business and related blocks of in-force business to Aetna. In our complete report available for purchase the company is compared to: Humana Inc, CIGNA Corporation and Wellpoint, Inc..