Norfolk Southern (NYSE:NSC) has outperformed the market over the past 20 years by 4.56% on an annualized basis producing an average annual return of 13.15%. Currently, Norfolk Southern has a market capitalization of $55.43 billion. Buying $1000 In NSC: If an investor had bought $1000 of NSC stock 20 years ago, it would be worth $11,542.49 today based on a price of $245.16 for NSC at the time of writing. Norfolk Southern’s Performance Over Last 20 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 ma…