SPX has shaved 50 points off the market today, and could see more, but this kind of extreme sell-off hasn't been seen in quite some time, and follows four days of selling before. 

Plenty of stocks are seeing prices that are 15-20% lower than they were earlier this month. However, I like to look for the large cap stocks that will have to bounce if this market bounces as well. Some that come to mind are:

Boeing (BA)

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Netflix (NFLX) - currently lost the 339-338 area, but trying to recover. Keep watching.

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Amazon (AMZN)

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