Progressive (NYSE:PGR) has outperformed the market over the past 20 years by 4.79% on an annualized basis producing an average annual return of 13.21%. Currently, Progressive has a market capitalization of $140.62 billion. Buying $1000 In PGR: If an investor had bought $1000 of PGR stock 20 years ago, it would be worth $11,930.91 today based on a price of $240.05 for PGR at the time of writing. Progressive’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 make in your cas…