Illumina (NASDAQ:ILMN) has outperformed the market over the past 20 years by 11.9% on an annualized basis producing an average annual return of 20.33%. Currently, Illumina has a market capitalization of $20.38 billion. Buying $100 In ILMN: If an investor had bought $100 of ILMN stock 20 years ago, it would be worth $4,050.72 today based on a price of $127.97 for ILMN at the time of writing. Illumina’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 growt…