Biotech giant Vertex Pharmaceuticals (VRTX 0.17%) has outperformed the S&P 500 in the past three, five, and 10 years. That's not a fluke: The drugmaker has been highly successful financially while displaying its incredible innovative abilities. Thankfully, it's not too late to invest in Vertex even with the market-beating returns it has provided in recent years.The company's underlying business remains as strong as ever -- strong enough that the stock is an excellent "forever" pick. Let's find out more.VRTX ...