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UnitedHealth Group is the largest health insurance company in the U.S., covering millions of people through employer, individual and government-funded plans like Medicare. It also owns Optum, which runs doctor networks and pharmacy services. Its profit depends largely on the gap between the premiums it collects and the medical costs it pays. This contract tracks the price of UnitedHealth Group stock (UNH).
What to watch: Quarterly earnings, Medicare payment rates, and health care policy.