CoStar Gr (NASDAQ:CSGP) has outperformed the market over the past 20 years by 9.18% on an annualized basis producing an average annual return of 17.07%. Currently, CoStar Gr has a market capitalization of $36.95 billion. Buying $1000 In CSGP: If an investor had bought $1000 of CSGP stock 20 years ago, it would be worth $23,437.82 today based on a price of $90.47 for CSGP at the time of writing. CoStar Gr’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 cash …