Offer your thoughts or opinion on the input financial query or topic using your financial background.

Is it possible to quantify the probability of sudden big movements for a high-volume stock?
The P/E is currently 20. In hindsight, it's easy to see that when it was 50, not long ago, it was very overpriced. They were not adding customers or increasing revenue as they should have to sustain that P/E level.  Probability? I suppose this can happen with any company that has both a high P/E and non-diversified business. Why did you think this company was large and stable? Their marketing blunders simply pricked the bubble level pricing these guys had.  (Disclaimer - I am actually a happy customer of Netflix. For $8/mo, I get 6-8 DVDs and neither spend gas nor time to get them. Others who grew used to free streaming feel otherwise)