Netflix was the best-performing stock of the decade, delivering a more than 4,000% return

For investors coming in at the current price, the potential downside is dramatic. With a price-to-earnings ratio for the next 12 months of 61.3, Netflix is among the 15 most expensive stocks in the S&P 500 on that basis, according to FactSet. – Ari Levy, CNBC ยป