Illumina (NASDAQ:ILMN) has outperformed the market over the past 20 years by 12.08% on an annualized basis producing an average annual return of 20.4%. Currently, Illumina has a market capitalization of $20.98 billion. Buying $1000 In ILMN: If an investor had bought $1000 of ILMN stock 20 years ago, it would be worth $42,473.66 today based on a price of $131.70 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 gr…