4. UnitedHealth Group (UNH)
The UnitedHealth Group is the largest health care services company in the world, with many of its customers hailing from the United States and Brazil. It provides numerous products and services, including health maintenance organizations (HMOs), which should be familiar to those of you who invest in medical insurance or provided by your company. As the largest player in the United States healthcare industry, UnitedHealth makes its money by acting as a middleman between healthcare providers and its customers. With 133 million customers worldwide as an insurer, it has significant experience in providing insurance. In 2016, it dropped coverage of plans under Obamacare leading to a 2.1% increase in stock value.
