UnitedHealth Group (NYSE:UNH) has outperformed the market over the past 10 years by 10.3% on an annualized basis producing an average annual return of 21.08%. Currently, UnitedHealth Group has a market capitalization of $543.84 billion. Buying $100 In UNH: If an investor had bought $100 of UNH stock 10 years ago, it would be worth $675.69 today based on a price of $588.94 for UNH at the time of writing. UnitedHealth Group’s Performance Over Last 10 YearsFinally — what’s the point of all this? The key insight to take from this article is to note how much of a difference compounded returns can …