CNBC's Stock Pops & Drops From February 18

On CNBC's Stocks Pops & Drops, Pete Najarian said that Jack in the Box Inc. JACK is getting a little bit bubbly after the 7.42 percent move higher on Wednesday. He would stay away from the stock. Karen Finerman likes Flowserve Corp FLS after it jumped 3.22 percent on Wednesday. She added that the company has a good management team. Dan Nathan wouldn't chase Zillow Inc Z after it spiked 14.98 percent. He thinks that the stock is expensive, trading at 80 times forward earnings and at 16.5 times expected sales. He said if the company doesn't make some cost cuts, the stock is going back to $100. Guy Adami commented on a chart of GoPro Inc GPRO. He sees lower highs and lower lows, which makes him think that the stock hasn't bottomed yet. The stock dropped 11.21 percent on Wednesday.