American Tower (NYSE:AMT) has outperformed the market over the past 15 years by 1.83% on an annualized basis producing an average annual return of 13.28%. Currently, American Tower has a market capitalization of $111.21 billion. Buying $1000 In AMT: If an investor had bought $1000 of AMT stock 15 years ago, it would be worth $6,654.56 today based on a price of $238.10 for AMT at the time of writing. American Tower’s Performance Over Last 15 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 make in …