Fast Money Picks For December 12

On CNBC's Fast Money, Dan Nathan said that Costco Wholesale Corporation COST posted good earnings results, but he is looking to place a bearish bet. He bought a January put spread on Thursday. Steve Grasso thinks that NXP Semiconductors NV NXPI is a buy. The stock fell 0.26 percent on Thursday. Karen Finerman likes Rentech Nitrogen Partners LP RNF after it jumped 5.91 percent on the news that the CEO is leaving the company. Guy Adami wants to buy the weakness in Spirit Airlines Incorporated SAVE, which dropped 6.21 percent on Thursday.