IDEXX Laboratories (NASDAQ:IDXX) has outperformed the market over the past 20 years by 3.56% on an annualized basis producing an average annual return of 12.15%. Currently, IDEXX Laboratories has a market capitalization of $38.56 billion. Buying $100 In IDXX: If an investor had bought $100 of IDXX stock 20 years ago, it would be worth $979.31 today based on a price of $468.45 for IDXX at the time of writing. IDEXX Laboratories’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…